CN102743187B - Examination couch with protective device - Google Patents

Abstract

The invention discloses an examination couch with a protective device, which comprises a horizontal part and a vertical lift part, wherein a bottom cover is arranged under the horizontal part, the edge of the upper part of the bottom cover is provided with touch sensors, each touch sensor is connected with a drive motor of the vertical lift part so as to control the rotation of the motor, and the touch sensors are microswitches. The examination couch with the protective device, which is provided by the invention, is provided with the touch sensors at the edge of the upper part of the mobile bottom cover. The bottom cover can be lifted so as to trigger the touch sensors when the design resistance of the touch sensor overcomes the gravity of the bottom cover, and the touch sensors immediately send blackout signals to the vertical motor to stop the rotation of the motor so as to stop the vertical motion of examination couch, so that the examination couch as well as devices and maintenance staffs capable of being pressed by the examination couch can be protected to the maximum extent. Moreover, the examination couch with the protective device has the advantages of lower design cost, simplicity and reliability in function, and easiness in maintenance.

Description

A kind of examinating couch with protector

Technical field

The present invention relates to a kind of examinating couch, relate in particular to a kind of examinating couch with protector.

Background technology

Armarium, comprises MR CT, PET-CT, and linear acceleratoies etc. all need examinating couch to carry out supporting patient, and need to realize the motion of each degree of freedom of examinating couch.In sick bed horizontal component bottom, having space is greatly that sick bed institute is unwanted, in process of clinical application, probably have other equipment, such as wheelchair or small auxiliary equipment, the equipment such as removable respirator can be pushed sick bed horizontal component bottom accidentally, even in maintenance process, also having maintainer may be in sick bed horizontal component bottom, if at this moment operator carry out downward the moving both vertically of sick bed, cause possibly the damage of sick bed itself and oppressed equipment, also may cause oppressed maintainer to be hurt.Therefore for bed motion in vertical direction, wish that sick bed, doing while moving vertically downward, if while running into unexpected resistance, needs timely stop motion, to protect sick bed not to be damaged, also can protect the object or person person who is oppressed by sick bed to preserve from simultaneously.

The existing sick bed for CT or MR examinating couch protection design mainly realizes the bed board defencive function that moves both vertically by motor current-limiting, when sick bed is done downward moving both vertically, surprisingly run into other equipment or maintainer still when sick bed bottom, by Electric Machine Control, responding to electric current that sick bed additional movements resistance causes increases to trigger current-limiting protection function and makes sick bed stop motion, this design has needs the even thousands of newton's of the resistance of trigger protection function several hectonewtons of excessive common needs resistance ability trigger protection function, existing easily makes this province of sick bed equipment damaged and that accidentally oppressed by sick bed damaged, or the risk that maintainer is injured.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of examinating couch with protector; very little to encountering the requirement of blockage resistance; as long as can overcome just energy trigger protection function of bottom gravity; equipment and the maintainer protecting to greatest extent sick bed and may be oppressed by sick bed; and simple in structure; design cost is also lower, easily maintenance test.

The present invention solves the problems of the technologies described above the technical scheme adopting to be to provide a kind of examinating couch with protector; comprise horizontal part and vertical lift portion; wherein; described horizontal part below is provided with bottom; described bottom top edge is provided with touch sensor, and the drive motors of described touch sensor and vertical lift portion is connected and controls its stall.

Further, described vertical lift portion comprises expansion bracket, screw mandrel and the drive motors that is double shear knife structure, described expansion bracket is fixed between horizontal part and base, on described expansion bracket, be provided with leading screw, one end of described leading screw is connected with drive motors by gear-box, the other end is provided with the screw thread matching with the nut that is fixed on the overlapping place of expansion bracket, and cover is connected in described nut.

Further, described expansion bracket comprises two fixing feet and two movable legs that are arranged on the same side, and one of them fixing feet is fixed on horizontal part, and another fixing feet is fixed on base, a slip foot is fixed on horizontal part by guide rail, and another slip foot is fixed on base by guide rail.

Further, described touch sensor is microswitch.

Further, the edge, two long limits of described bottom is step-like, the lower edge of described horizontal part shell bends inwards and forms the kink together with offseting with bottom step, and described touch sensor is arranged on the kink of horizontal part shell, and operating spring is close to the top edge of bottom.

Further, described touch sensor number is four, divides four corners that are laid in bottom.

Further, described touch sensor number is two, divides the centre that is laid in two long limits of bottom.

Further, described touch sensor number is two, divides and is laid in place, two diagonal angles of bottom.

Further, described touch sensor number is three, two two ends of being located at a long limit of bottom, and another is located at the centre on another long limit of bottom.

Further, when touch sensor change of state, described drive motors carries out reverse drive until microswitch reverts to original state.

The present invention contrasts prior art following beneficial effect: the examinating couch with protector provided by the invention, by touch sensor being set in mobilizable bottom top edge, as long as the design resistance of touch sensor overcomes bottom gravity, thereby all can being popped up, bottom triggers touch sensor, touch sensor is issued motor vertical power-off signal immediately and is caused motor stall immediately, thereby make sick bed stop moving both vertically, equipment and the maintainer having protected to greatest extent sick bed and may have been oppressed by sick bed, this design cost is also lower simultaneously, function is simple and reliable, and easily maintenance test.

Accompanying drawing explanation

Fig. 1 is the examinating couch structural representation that the present invention has protector;

Fig. 2 A is along A-A ' line generalized section in Fig. 1;

Fig. 2 B is horizontal part and I place, vertical lift portion junction enlarged diagram in Fig. 2 A;

Fig. 3 is microswitch structure schematic diagram in examinating couch of the present invention;

Fig. 4 A～Fig. 4 D be in examinating couch of the present invention microswitch at bottom distribution schematic diagram;

Fig. 5 is vertical lift portion structural representation in examinating couch of the present invention;

Fig. 6 is that examinating couch of the present invention is controlled drive motors stall schematic diagram by microswitch.

In figure:

1horizontal part 2vertical lift portion 3 bottoms

4touch sensor 5upper cover 6 horizontal part shells

7guide rail 8slip foot 9 fixing feet

10base 13 leadingscrew 14 gear-boxes

15 drive motors 20nut 30 expansion brackets

The specific embodiment

Below in conjunction with drawings and Examples, the invention will be further described.

Fig. 1 is the examinating couch structural representation that the present invention has protector; Fig. 2 A is along A-A ' line generalized section in Fig. 1; Fig. 2 B is horizontal part and I place, vertical lift portion junction enlarged diagram in Fig. 2 A.

Refer to Fig. 1, Fig. 2 A and Fig. 2 B; the examinating couch with protector provided by the invention compriseshorizontal part 1 andvertical lift portion 2; onhorizontal part 1, can be provided withupper cover 5; outer wraphorizontal part shell 6; wherein;horizontal part 1 below is provided withbottom 3, andbottom 3 top edge are provided withtouch sensor 4, and thedrive motors 15 oftouch sensor 4 andvertical lift portion 2 is connected and controls its stall.

Touch sensor 4 is preferably microswitch, and microswitch is a kind of quick converting switch of exerting pressure and actuating, because the contact spacing of its switch is smaller, therefore named microswitch, is again sensitive switch.Electric letter symbol is: SM.Refer to Fig. 3, under normal condition, operating spring is in a state, and while meeting obstructions below horizontal part, bottom is by operating spring jack-up in a ' state, and the contact spacing of microswitch is little, actuating length is short, press that power is little, break-make is rapid.Whenbottom 3 is encountered any blockage, thereby all can being popped up,bottom 3 triggers microswitch, thedrive motors 15 that microswitch can be immediately issued vertical lift portion power-off signal causes motor stall immediately, thereby make sick bed stop moving both vertically, play defencive function, this design is very little to the requirement of resistance, as long as can overcome the resistance (only needing tens newton) of bottom gravity with regard to energy trigger protection function, thereby equipment and the maintainer having protected to greatest extent sick bed and may have been oppressed by sick bed; This design cost is also lower simultaneously, and function is simple and reliable, and easily maintenance test.

Microswitch is preferably close between the inwall andbottom 3 that is arranged on horizontal part shell 6.In order to make the space in horizontal shell larger, be beneficial to arrange and move horizontally driver part, the edge, two long limits ofbottom 3 is step-like, the lower edge ofhorizontal part shell 6 bends inwards and forms the kink together with offseting with bottom step, microswitch is arranged on the kink ofhorizontal part shell 6, and operating spring is close to the top edge of bottom 3.Microswitch number is preferably four, divides four corners that are laid inbottom 3, as shown in Figure 4 A, so thatbottom 3 is encountered barrier Anywhere, can touch in time microswitch.Certainly, for cost-saving, microswitch number also can be two, divides the centre that is laid in 3 two long limits of bottom, as shown in Figure 4 B.Or two microswitch are divided and are laid in place, 3 two diagonal angles of bottom, as shown in Figure 4 C.If adopt three microswitch, best distribution triangular in shape, as two two ends of being located at 3 one long limits of bottom, another is located at the centre onbottom 3 another long limits, as shown in Figure 4 D.

Please continue referring to Fig. 5,vertical lift portion 2 comprises theexpansion bracket 30 that is double shear knife structure,screw mandrel 13 anddrive motors 15,expansion bracket 30 in the vertical directions are double shear knife structure, be in the horizontal direction two intersections " V ' shape structure, the overlapping place of two " V-arrangements " is fixed,expansion bracket 30 is fixedly connected between bed boardhorizontal part 1 andbase 10, comprise twofixing feet 9 and twomovable legs 8 that are arranged on the same side, one of them fixingfeet 9 is fixed onhorizontal part 1, anotherfixing feet 9 is fixed onbase 10, aslip foot 8 is fixed onhorizontal part 1 byguide rail 7, anotherslip foot 8 is fixed onbase 10 byguide rail 7, can move according to the height of horizontal part 1.Onexpansion bracket 30, be provided with leadingscrew 13; One end of leadingscrew 13 is connected withdrive motors 15 by gear-box 14, and the other end is provided with the screw thread matching with the nut 20 that is fixed on the overlapping place of expansion bracket, and cover is connected in nut 20.Preferably, nut 20 and gear-box 14 are separately fixed at the overlapping place, two centres onexpansion bracket 30 vertical directions, be two two overlapping places that " V " shape structure forms in horizontal direction, it is all passable that drivemotors 15 and gear-box 14 are arranged on the overlapping place of upside or downside, and gear-box 14 is turbine and worm gear-box.

Please continue referring to Fig. 6; the present invention controls drivemotors 15 and carries out the operation that sick bed moves down; monitor the state of microswitch simultaneously; when microswitch is from disconnecting or connection status is changed to and connects or during off-state; stop the operation that moves down of motor, and carry out reverse drive, after microswitch reverts to original state, stop reverse drive operation; and products for further instruction, thereby equipment and the maintainer having protected to greatest extent sick bed and may have been oppressed by sick bed.While wanting to make examinating couch to move up as attendant, as long as touch gently bottom, need not specially use control inputs portion.

Although the present invention discloses as above with preferred embodiment; so it is not in order to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little modification and perfect, so protection scope of the present invention is worked as with being as the criterion that claims were defined.

Claims (9)

1. an examinating couch with protector; comprise horizontal part (1) and vertical lift portion (2); it is characterized in that; described horizontal part (1) below is provided with bottom (3); described bottom (3) top edge is provided with touch sensor (4); described touch sensor (4) is microswitch; described microswitch is close between the inwall and bottom (3) that is arranged on horizontal part shell (6), and the drive motors (15) of described touch sensor (4) and vertical lift portion (2) is connected and controls its stall.

2. the examinating couch with protector as claimed in claim 1, it is characterized in that, described vertical lift portion (2) comprises the expansion bracket (30) that is double shear knife structure, leading screw (13) and drive motors (15), described expansion bracket (30) is fixed between horizontal part (1) and base (10), on described expansion bracket (30), be provided with leading screw (13), one end of described leading screw (13) is connected with drive motors (15) by gear-box (14), the other end is provided with the screw thread matching with the nut that is fixed on the overlapping place of expansion bracket (20), and cover is connected in described nut (20).

3. the examinating couch with protector as claimed in claim 2; it is characterized in that; described expansion bracket (30) comprises two fixing feet (9) and two movable legs (8) that are arranged on the same side; one of them fixing feet (9) is fixed on horizontal part (1); another fixing feet (9) is fixed on base (10); a movable leg (8) is fixed on horizontal part (1) by guide rail (7), and another movable leg (8) is fixed on base (10) by guide rail (7).

4. the examinating couch with protector as claimed in claim 1; it is characterized in that; the edge, two long limits of described bottom (3) is step-like; the lower edge of described horizontal part shell (6) bends inwards and forms the kink together with offseting with bottom step; described touch sensor (4) is arranged on the kink of horizontal part shell (6), and operating spring is close to the top edge of bottom (3).

5. the examinating couch with protector as described in claim 1～4 any one, is characterized in that, described touch sensor (4) number is four, divides four corners that are laid in bottom (3).

6. the examinating couch with protector as described in claim 1～4 any one, is characterized in that, described touch sensor (4) number is two, divides the centre that is laid in (3) two long limits of bottom.

7. the examinating couch with protector as described in claim 1～4 any one, is characterized in that, described touch sensor (4) number is two, divides and is laid in (3) two places, diagonal angle of bottom.

8. the examinating couch with protector as described in claim 1～4 any one, is characterized in that, described touch sensor (4) number is three, two two ends of being located at (3) long limits of bottom, and another is located at the centre on another long limit of bottom (3).

9. the examinating couch with protector as described in claim 1～4 any one, is characterized in that, when touch sensor (4) change of state, described drive motors (15) carries out reverse drive until touch sensor (4) reverts to original state.

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