[summary of the invention]
In view of above-mentioned condition, be necessary the lamp holder mounting support structure that a kind of lighting is provided, need not can realize the all-direction rotation of lamp holder by instrument, and lamp holder can be fixed in relevant position.
A lamp holder mounting support structure for lighting, for being installed on the supporting member by the lamp holder of lighting, comprising:
For two fixed supports be fixedly connected with described support component, each described fixed support is provided with the first axis hole and multiple first location division, described first axis hole runs through described support bracket fastened two apparent surfaces, described multiple first position point in described one of them apparent surface support bracket fastened, and is arranged around the periphery interval of described first axis hole;
Relative to the rotating swinging mounting of described fixed support, described swinging mounting comprises U-shaped support and two beam barrels, one openend of described two beam barrels is connected with the free end of two support arms of described U-shaped support respectively, and described two beam barrels are arranged perpendicular to two support arms of described U-shaped support respectively; The bottom inside of described U-shaped support is provided with multiple second location division, and described multiple second location division is arranged around the periphery interval of described second axis hole; The end face of another openend of described beam barrel is provided with multiple first auxiliary section, and described multiple first auxiliary section is arranged along the periphery interval of the openend of each described beam barrel; Match with described multiple first location division respectively in described multiple first auxiliary section, to locate described swinging mounting;
Wear two the first rotating shafts of described two support bracket fastened first axis holes and described two beam barrels respectively rotationally, at least one in described fixed support and described beam barrel along described first rotating shaft in described first rotating shaft of correspondence axially slidably;
Be set in two the first elastic components in described two the first rotating shafts respectively, described two the first elastic components are used for providing an axial abutting power in described swinging mounting and described fixed support;
Detachably be located at least one first locking part on the end of described first rotating shaft, described gripper shoe, described beam barrel and the first elastic component lock in the first rotating shaft by described first locking part;
Penetrate rotatably the second rotating shaft of the bottom of described U-shaped support, one end of described second rotating shaft is provided with abutment flange, and described abutment flange extends along the circumference of described second rotating shaft, and around described second rotating shaft one week; Described abutment flange is provided with multiple second auxiliary section near the side of the other end of described second rotating shaft, and described multiple second auxiliary section is arranged around described second rotating shaft interval; Match with described multiple second location division respectively in described multiple second auxiliary section, to locate described second rotating shaft;
Be sheathed on the second elastic component in described second rotating shaft, described second elastic component abuts with the bottom outside of described U-shaped support, for providing an axial abutting power in described U-shaped support and described second rotating shaft;
Removably be fixed on second locking part of described second rotating shaft one end relative with described abutment flange, described U-shaped support and described second elastic component lock in the second rotating shaft by described second locking part; And
Be fixed on the bulb holder holders of described second rotating shaft one end relative with described abutment flange, described bulb holder holders is for installing the lamp holder of described lighting;
Wherein, described first location division and described first auxiliary section and described second location division and described second auxiliary section are respectively the positioning convex and detent that cooperatively interact for a pair, locate described swinging mounting relative to described support bracket fastened rotational angle by described first location division and described first auxiliary section, locate the rotational angle of described bulb holder holders relative to described swinging mounting by described second location division and described second auxiliary section.
Match with the first auxiliary section of the beam barrel of swinging mounting in support bracket fastened first location division of above-mentioned lamp holder mounting support structure, match with the second auxiliary section of the second rotating shaft in second location division of swinging mounting, and the first location division and the first auxiliary section, the second location division and the second auxiliary section are the positioning convex and detent that cooperatively interact.First elastic component provides an axial abutting power to fixed support and swinging mounting, and the second elastic component provides an axial abutting power in swinging mounting and the second rotating shaft.When needing the irradiating angle regulating lamp holder on the direction perpendicular to the first rotating shaft, then applying external force makes swinging mounting rotate in swinging mounting, first positioning boss skids off from one of them first detent, at least one in the beam barrel of swinging mounting and fixed support is slided relative to the first rotating shaft and compresses the first elastic component, until the first positioning boss slips into another one first detent, swinging mounting is located again in this angle position.When needing the irradiating angle regulating lamp holder on the direction perpendicular to the second rotating shaft, then apply external force in lamp holder or bulb holder holders, make the second axis of rotation, second positioning boss skids off from one of them second detent, the U-shaped support of swinging mounting slides relative to the second rotating shaft and compresses the second elastic component, until the second positioning boss slips into another one second detent, the second rotating shaft is located again in this angle position.Therefore, the head mounting support structure of above-mentioned lighting, need not can realize the all-direction rotation of lamp holder, and lamp holder can be fixed by instrument in relevant position.
Wherein in an embodiment, described fixed support comprises fixed head and gripper shoe, and described gripper shoe vertically bends extension from a side of described fixed head; The free end of described gripper shoe is circular arc, and described first axis hole is the circular hole of the free end being located at described gripper shoe; Described fixed head is provided with fixing hole, for fixed head being fixed on the parts of described lighting.
Wherein in an embodiment, one end of described first rotating shaft is provided with stop flange, and the other end is provided with described first locking part; Described stop flange is used for abutting with the free end of described gripper shoe, prevents described first rotating shaft from deviating from described first axis hole; Match with described first locking part through after described first axis hole, described beam barrel and described first elastic component in described first rotating shaft one end relative with described stop flange, with by described gripper shoe, described beam barrel and described first elastic component locking in described first rotating shaft.
Wherein in an embodiment, described first rotating shaft is bolt, and described first rotating shaft is threaded portion with relative one end of described stop flange, described stop flange is around the end one week of described bolt, described first locking part is the nut matched with described bolt, described threaded portion is screwed with described first locking part through after described first axis hole, described beam barrel and described first elastic component, when turning described nut, and the axial elastic force that adjustable described first elastic component provides.
Wherein in an embodiment, between one end that described first elastic component is connected to the described U-shaped support place of described beam barrel and described nut, described beam barrel along described first rotating shaft slidably, when described first positioning boss skids off in described first detent, described beam barrel dorsad described fixed support slides and compresses described first elastic component;
Or, described first elastic component is connected between described stop flange and described gripper shoe, described gripper shoe along described first rotating shaft slidably, when described first positioning boss skids off in described first detent, slide and compress described first elastic component by described gripper shoe dorsad described beam barrel;
Wherein, described first elastic component is Compress Spring, elastic caoutchouc cylinder or waveform splinter.
Wherein in an embodiment, described U-shaped support comprises installing plate and L-type connecting plate, the connection of the end limit of one end of described L-type connecting plate and the openend of described beam barrel, and arrange perpendicular to the axis of described beam barrel, the other end of described L-type connecting plate is parallel to the axial openend arranged outside towards described beam barrel of described beam barrel; Described installing plate is connected with the side of the other end of described L-type connecting plate, and described beam barrel is arranged perpendicular to one end of described L-type connecting plate dorsad; Described installing plate is for being fixedly connected with the parts of described lighting.
Wherein in an embodiment, two sidewalls that described detent comprises diapire and is connected with the opposite end of described diapire respectively, described two sidewalls are obliquely installed outwardly compared to described diapire, make described positioning boss slowly slip into along described sidewall or skid off described detent.
Wherein in an embodiment, two sides that described positioning boss comprises end face and is connected with the relative dual-side of described end face, described two sides are obliquely installed outwardly compared to described end face, when making described positioning boss slip into or skid off described detent, described side abuts with the edge of opening of described detent and plays guide effect.
Wherein in an embodiment, described detent is trapezoidal groove, and the opening size of described detent is greater than bottom size; Described positioning boss is trapezoid boss, and the size of the size of described positioning boss and shape and described detent and shape suitable.
Meanwhile, the present invention also provides a kind of lighting adopting above-mentioned lamp holder mounting support structure.
A kind of lighting, comprising:
Above-mentioned lamp holder mounting support structure;
Be arranged on the described lamp holder on described bulb holder holders;
Wherein, when forcing in described swinging mounting, described swinging mounting rotates relative to described fixed support, the irradiating angle of adjustable described lamp holder on the direction perpendicular to described first rotating shaft; When forcing in described bulb holder holders, described bulb holder holders rotates relative to described swinging mounting, to regulate described lamp holder perpendicular to the irradiating angle in described second rotor shaft direction.
[detailed description of the invention]
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Refer to Fig. 1, the lighting of one embodiment of the present invention, comprise lamp holder mounting support structure 100 and lamp holder (not shown), lamp holder mounting support structure 100 is for installing this lamp holder on the supporting member.This lamp holder mounting support structure 100 comprises fixed support 110, swinging mounting 120, first rotating shaft 130, first elastic component 140, first locking part 150, second rotating shaft 160, second elastic component 170, second locking part 180 and bulb holder holders 190.
It should be noted that, support component can be self parts of lighting, and such as, the electric housing, lamp lifting rod etc. of lighting also can be the parts beyond lighting, such as, and roof, wall etc.
Refer to Fig. 2 and Fig. 3, fixed support 110 is two, for being fixedly connected with of this support component.Each fixed support 110 is equipped with the first axis hole 111 and multiple first location division 113.First axis hole 111 runs through two apparent surfaces of fixed support 110.Multiple first location divisions 113 are positioned at one of them apparent surface of fixed support 110, and arrange around the periphery interval of the first axis hole 111.
Specifically in the illustrated embodiment in which, fixed support 110 comprises fixed head 114 and gripper shoe 115.Gripper shoe 115 vertically bends extension from a side of fixed head 114.The free end of gripper shoe 115 is circular arc, and the first axis hole 111 is for being located at the circular hole of the free end of gripper shoe 115.Fixed head 114 is provided with fixing hole 114a, for fixed head 114 being fixed on the parts of lighting.
Swinging mounting 120 is rotatable relative to fixed support 110.Swinging mounting 120 comprises beam barrel 121 and U-shaped support 123.One openend of two beam barrels 121 is connected with the free end of two support arms of U-shaped support 123 respectively, and two beam barrels 121 are arranged perpendicular to two support arms of U-shaped support 123 respectively.The bottom inside of U-shaped support 123 is provided with multiple second location division 126, and multiple second location division 126 is arranged around the periphery interval of the second axis hole.The end face of another openend of beam barrel 121 is provided with multiple first auxiliary section 124.Multiple first auxiliary section 124 is arranged along the periphery interval of the openend of beam barrel 121.Match with multiple first location divisions 113 of fixed support 110, with locating rotation support 120 respectively in multiple first auxiliary section 124.
See also Fig. 4, one of them of the first location division 113 and the first auxiliary section 124 is the first positioning boss, and another one is the first detent matched with the first positioning boss.Specifically in the illustrated embodiment in which, the first auxiliary section 124 of the beam barrel 121 of swinging mounting 120 is the first positioning boss, and the first location division 113 of fixed support 110 is the first detent.
In order to make the first positioning boss slip into or skid off in the first detent lentamente, the shape of the first detent shape and/or location the first positioning boss can be done to change, such as following several embodiments.
Wherein in an embodiment, two sidewalls that the first detent comprises diapire and is connected with the opposite end of diapire respectively, two sidewalls are obliquely installed outwardly compared to diapire, make the first positioning boss slowly slip into along sidewall or skid off the first detent.Such as, the sidewall of the first detent is the arc of evagination or the V-arrangement of evagination.When the sidewall of the first detent is the V-arrangement of evagination, when first positioning boss is along the side walls of the first detent, when passing by the summit of V-arrangement, the elastic force of the first elastic component 140 is undergone mutation, when making the first positioning boss slip into or skid off chute, there is obvious feel, thus be convenient to the rotational angle controlling swinging mounting 120.
In other embodiment, two sides that first positioning boss comprises end face and is connected with the relative dual-side of end face, two sides are obliquely installed outwardly compared to end face, when making the first positioning boss slip into or skid off the first detent, side abuts with the edge of opening of the first detent and plays guide effect.Such as, the side of the first positioning boss is the arc of indent or the V-arrangement of indent.When the side of the first positioning boss is the V-arrangement of indent, when the side of the first positioning boss abuts with the opening periphery of the first detent and slides, when passing by the summit of V-arrangement, the elastic force of the first elastic component 140 is undergone mutation, when making the first positioning boss slip into or skid off chute, there is obvious feel, thus be convenient to the rotational angle controlling swinging mounting 120.
In other embodiments, two sidewalls that the first detent comprises diapire and is connected with the opposite end of diapire respectively, two sidewalls are obliquely installed outwardly compared to diapire.Shape and the size of the shape of the first positioning boss and size and the first detent are suitable.Such as, the first detent is trapezoidal groove, and the opening size of the first detent is greater than bottom size.First positioning boss is trapezoid boss, and the size of the size of the first positioning boss and shape and the first detent and shape suitable.Because the first detent and the first positioning boss are suitable trapezoidal of shape, make the first positioning boss comparatively slow when slipping into or skid off the first detent.Further, the first positioning boss can not double swerve in the first detent, and its location is comparatively stable.
First rotating shaft 130 is two, wears the first axis hole 111 of two fixed supports 110 and two beam barrels 121 of swinging mounting 120 respectively rotationally.At least one in fixed support 110 and beam barrel 121 along the first rotating shaft 130 in the first rotating shaft 130 axially slidably.At least one first locking part 150 is detachably located on the end of the first rotating shaft, and gripper shoe 115, beam barrel 121 and the first elastic component lock in the first rotating shaft by the first locking part 150.
Specifically in the illustrated embodiment in which, one end of the first rotating shaft 130 is provided with stop flange 131, and the other end is provided with the first locking part 150.Stop flange 131, for abutting with the free end of gripper shoe 115, prevents the first rotating shaft 130 from deviating from the first axis hole 111.Match with the first locking part 150 through after the first axis hole 111, beam barrel 121 and the first elastic component 140, gripper shoe 115, beam barrel 121 and the first elastic component 140 to be locked in the first rotating shaft 130 in first rotating shaft 130 one end relative with stop flange 131.
Such as, first rotating shaft 130 is bolt, and the first rotating shaft 130 is threaded portion with relative one end of stop flange 131, stop flange 131 is around the end one week of bolt, first locking part 150 is the nut matched with bolt, and threaded portion is screwed with the first locking part 150 through after the first axis hole 111, beam barrel 121 and the first elastic component 140.When turning nut, the axial elastic force that adjustable first elastic component 140 provides.
In other embodiments, first rotating shaft 130 is bolt, and the two ends of bolt are equipped with screw thread, first locking part 150 is two, and be nut, two nuts are screwed with the two ends of bolt respectively, thus gripper shoe 115, beam barrel 121 and the first elastic component 140 are locked in the first rotating shaft 130.
In other embodiments, first rotating shaft 130 is bearing pin, the two ends of bearing pin are respectively equipped with a pin-and-hole, first locking part 150 is two, and be jump ring, two jump rings wear the pin-and-hole at bearing pin two ends respectively, thus gripper shoe 115, beam barrel 121 and the first elastic component 140 are locked in the first rotating shaft 130.
First elastic component 140 is two, is set in respectively in two the first rotating shafts 130.First elastic component 140 is for providing an axial abutting power in swinging mounting 120 and fixed support 110.First elastic component 140 can be Compress Spring, elastic caoutchouc cylinder or waveform splinter.Specifically in the illustrated embodiment in which, between one end that first elastic component 140 is connected to U-shaped support 123 place of beam barrel 121 and nut, beam barrel 121 along the first rotating shaft 130 slidably, when the first positioning boss skids off in the first detent, beam barrel 121 dorsad fixed support 110 slides and compresses the first elastic component 140.Because the structural strength of the gripper shoe 115 of fixed support 110 is weak compared to the structural strength of the beam barrel 121 of swinging mounting 120, now, beam barrel 121 slides in the first rotating shaft 130, and gripper shoe 115 is not slided relative to the first rotating shaft 130, gripper shoe 115 is avoided to rub with the first rotating shaft 130 and reduce the service life of gripper shoe 115 for a long time.
In other embodiments, first elastic component 140 is connected between stop flange 131 and gripper shoe 115, gripper shoe 115 along the first rotating shaft 130 slidably, when the first positioning boss skids off in the first detent, slide and compress the first elastic component 140 by gripper shoe 115 dorsad beam barrel 121.Because the first elastic component 140 is connected between stop flange 131 and gripper shoe 115, avoid swinging mounting 120 to rub with the first elastic component 140 in rotation process, and reduce the service life of the first elastic component 140.
Second rotating shaft 160 penetrates rotatably the bottom of the U-shaped support 123 of swinging mounting 120.One end of second rotating shaft 160 is provided with abutment flange 161.Abutment flange 161 extends along the circumference of the second rotating shaft 160, and around the second rotating shaft 160 1 weeks.Abutment flange 161 is provided with multiple second auxiliary section 163 near the side of the other end of the second rotating shaft 160.Multiple second auxiliary section 163 is arranged around the second rotating shaft 160 interval.Match with multiple second location divisions 126 of swinging mounting 120 respectively in multiple second auxiliary section 163, to locate the second rotating shaft 160.
One of them of second location division 126 of swinging mounting 120 and the second auxiliary section 163 of the second rotating shaft 160 is the second positioning boss, and another one is the second detent matched with the second positioning boss.Specifically in the illustrated embodiment in which, 126, the second location division detent of swinging mounting 120, the second auxiliary section 163 of the second rotating shaft 160 is positioning boss.
In order to make the second positioning boss slip into or skid off in the second detent lentamente, the shape of the second detent shape and/or location the second positioning boss can be done to change, such as following several embodiments.
Wherein in an embodiment, two sidewalls that the second detent comprises diapire and is connected with the opposite end of diapire respectively, two sidewalls are obliquely installed outwardly compared to diapire, make the second positioning boss slowly slip into along sidewall or skid off the second detent.Such as, the sidewall of the second detent is the arc of evagination or the V-arrangement of evagination.When the sidewall of the second detent is the V-arrangement of evagination, when second positioning boss is along the side walls of the second detent, when passing by the summit of V-arrangement, the elastic force of the first elastic component 140 is undergone mutation, when making the second positioning boss slip into or skid off chute, there is obvious feel, thus be convenient to the rotational angle controlling swinging mounting 120.
In other embodiment, two sides that second positioning boss comprises end face and is connected with the relative dual-side of end face, two sides are obliquely installed outwardly compared to end face, when making the second positioning boss slip into or skid off the second detent, side abuts with the edge of opening of the second detent and plays guide effect.Such as, the side of the second positioning boss is the arc of indent or the V-arrangement of indent.When the side of the second positioning boss is the V-arrangement of indent, when the side of the second positioning boss abuts with the opening periphery of the second detent and slides, when passing by the summit of V-arrangement, the elastic force of the first elastic component 140 is undergone mutation, when making the second positioning boss slip into or skid off chute, there is obvious feel, thus be convenient to the rotational angle controlling swinging mounting 120.
In other embodiments, two sidewalls that the second detent comprises diapire and is connected with the opposite end of diapire respectively, two sidewalls are obliquely installed outwardly compared to diapire.Shape and the size of the shape of the second positioning boss and size and the second detent are suitable.Such as, the second detent is trapezoidal groove, and the opening size of the second detent is greater than bottom size.Second positioning boss is trapezoid boss, and the size of the size of the second positioning boss and shape and the second detent and shape suitable.Because the second detent and the second positioning boss are suitable trapezoidal of shape, make the second positioning boss comparatively slow when slipping into or skid off the second detent.Further, the second positioning boss can not double swerve in the second detent, and its location is comparatively stable.
It should be noted that, in same embodiment, the second positioning boss can be identical with the first positioning boss, also can be different; Second detent can be identical with the first detent, also can be different.
Second elastic component 170 is sheathed in the second rotating shaft 160.Second elastic component 170 abuts with the bottom outside of U-shaped support 123, for providing an axial abutting power in U-shaped support 123 and the second rotating shaft 160.Second elastic component 170 can be elastic caoutchouc cylinder, Compress Spring, waveform splinter etc.
Second locking part 180 is removably fixed on the second rotating shaft 160 one end relative with abutment flange 161, and U-shaped support 123 and the second elastic component 170 lock in the second rotating shaft 160 by the second locking part 180.Specifically in the illustrated embodiment in which, the second rotating shaft 160 is bolt, and the second locking part 180 is the nut be screwed with the threaded portion of bolt.
In other embodiments, the second rotating shaft 160 is pin rod, and the second rotating shaft 160 one end relative with abutment flange 161 is provided with pin-and-hole, and the second locking part 180 is the jump ring in the pin-and-hole of insertion second rotating shaft 160.
Bulb holder holders 190 is fixed on the second rotating shaft 160 one end relative with abutment flange 161, and bulb holder holders 190 is for installing the lamp holder of lighting.Specifically in the illustrated embodiment in which, bulb holder holders 190 is rectangular box, and the side of bulb holder holders 190 is provided with the screw be screwed with the threaded portion of the second rotating shaft 160, and another opposite side of bulb holder holders 190 is provided with the installing hole for fixing lamp holder.
Further, the second locking part 180 is located at the outermost end of the threaded portion of the second rotating shaft 160, and is positioned at bulb holder holders 190, comes off from the second rotating shaft 160 to prevent bulb holder holders 190.Second elastic component 170 is connected to the bottom outside of the side of bulb holder holders 190 and the U-shaped support 123 of swinging mounting 120.
Generally speaking, first location division 113 and the first auxiliary section 124 and the second location division 126 and the second auxiliary section 163 are respectively the positioning convex and detent that cooperatively interact for a pair, by the first location division and the first auxiliary section locating rotation support 120 rotational angle relative to fixed support 110, by the second location division 126 and the second auxiliary section 163 positioning lamp cap holder 190 rotational angle relative to swinging mounting 120.
In other words, when swinging mounting rotates 120, first positioning boss skids off in the first detent, at least one making in beam barrel 121 and fixed support 110 is slided along the first rotating shaft 130 and extrudes the first elastic component 140, until the first positioning boss slips in another one first detent, swinging mounting 120 is located again relative to fixed support 10.
When bulb holder holders 190 rotates, second rotating shaft 160 is rotated with bulb holder holders 190, second positioning boss skids off in the second detent, U-shaped support 123 is made to slide relative to the second rotating shaft 160 and extrude the second elastic component 170, until the second positioning boss slips in another one second detent, bulb holder holders 190 is located again relative to U-shaped support 123.
The lamp holder of above-mentioned lighting can realize 360 ° of rotations in level and vertical direction, and fixes in relevant position.In the rotary course of lamp holder, second rotating shaft 160 and swinging mounting 120 can rotate along with the rotation of lamp holder, when the first location division 113 of fixed support 110 coordinates with the second auxiliary section 163 of the second rotating shaft 160 with the first auxiliary section 124 of swinging mounting 120, the second location division 126 of swinging mounting 120, lamp holder can be fixed on relevant position; Re-use external force to pull lamp holder and can be rotated further until next position location, the size of external force depends on the elastic force of the first elastic component 140 and the second elastic component 170.
Match with the first auxiliary section 124 of the beam barrel 121 of swinging mounting 120 in first location division 113 of the fixed support 110 of above-mentioned lighting, match with the second auxiliary section 163 of the second rotating shaft 160 in second location division 126 of swinging mounting 120, and the first location division 113 and the first location division, auxiliary section 124, second 126 and the second auxiliary section 163 are the positioning convex that cooperatively interacts and detent.First elastic component 140 provides an axial abutting power to provide an axial abutting power in swinging mounting 120 and the second rotating shaft 160 to fixed support 110 and swinging mounting 120, second elastic component 170.When needing the irradiating angle regulating lamp holder on the direction perpendicular to the first rotating shaft 130, then applying external force makes swinging mounting 120 rotate in swinging mounting 120, first positioning boss skids off from one of them first detent, at least one in the beam barrel 121 of swinging mounting 120 and fixed support 110 is slided relative to the first rotating shaft 130 and compresses the first elastic component 140, until the first positioning boss slips into another one first detent, swinging mounting 120 is located again in this angle position.When needing the irradiating angle regulating lamp holder on the direction perpendicular to the second rotating shaft 160, then apply external force in lamp holder or bulb holder holders 190, second rotating shaft 160 is rotated, second positioning boss skids off from one of them second detent, the U-shaped support 123 of swinging mounting 120 slides relative to the second rotating shaft 160 and compresses the second elastic component 170, until the second positioning boss slips into another one second detent, the second rotating shaft 160 is located again in this angle position.Therefore, the head mounting support structure of above-mentioned lighting, need not can realize the all-direction rotation of lamp holder, and lamp holder can be fixed by instrument in relevant position.
Above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.