A kind of swelled connector of air-conditioning ductTechnical field
The utility model is related to pipe joint technical fields, more particularly to a kind of swelled connector of air-conditioning duct.
Background technology
The connection between the metal tube and connector of air-conditioning is all Welding mostly in the prior art, the disadvantage is that consumption energySource, oxide layer and scaling powder after welding need strong acid to be cleaned, polluted environment.
A kind of swelled connector of existing air-conditioning ducts of patent CN201547423U-, discloses relevant air-conditioning duct and risesCompact form connector, but this pipe fitting generally can only lean on the plastic deformation of metallic conduit to be connect with connector, this plastic deformation isIt is irreversible so that the separation of air-conditioning metal tube and connector is extremely difficult.
Utility model content
In order to overcome the deficiencies of the prior art, the utility model provides a kind of swelled connector of air-conditioning duct, solutionDetermined air-conditioning duct swelled connector connect with metal tube after the problem of being not readily separated.The utility model uses following technologiesScheme：
A kind of swelled connector of air-conditioning duct, including fixed section, fixed section are fixedly connected with thread segment, the fixed sectionFor connecting metal tube, the thread segment has been connected through a screw thread other pipe fittings；The fixed section is equipped with spring fixing portion, describedSpring fixing portion is by fixing metal tube along the montant of fixed section radial motion.
Further, the spring fixing portion includes the stepped hole being arranged in fixed section, and montant, institute are equipped in the stepped holeThe periphery upper ring cap for stating montant has annular slab, and spring, the metal tube are equipped between the annular slab and the end face of stepped holePeriphery be equipped with annular groove, the end of the montant is stretched into annular groove.
Pilot hole using stepped hole as montant, can be in the ladder of stepped hole while montant moves in stepped holeSpring is installed, cooperation annular slab uses so that montant is by the elastic force far from annular groove at variation.
Further, the quantity of the spring fixing portion can be individually or multiple, and single spring fixing portion is convenientProcessing, the fixed effect of multiple spring fixing portions is more preferable, and connection is more firm.
Further, the end of the montant is equipped with round end.Montant can be made to be easier to enter in annular groove using round end,And montant will not damage the outer surface of metal tube because of friction.
Further, the periphery of the fixed section is equipped with external screw thread, and the fixed section periphery passes through external screw thread and spiral shellMother is fixedly connected.Screw thread on fixing end periphery can compress montant, and montant moves downward so that montant is stuck in annular groove.
Further, fixed section is additionally provided with tightening piece fixed part, and tightening piece fixed part is arranged in the end of metal tube and springBetween fixed part, the tightening piece fixed part includes the through-hole being arranged on fixed section, and the end of the metal tube is equipped with tensionerBlock.
The tightening piece fixed part of use can utilize the fixed metal tube of plastic deformation and fixing end, can be squeezed from through-holePressure tightening piece makes tightening piece be detached from from through-hole.
Further, the outer diameter of the fixed section is less than the outer diameter of thread segment.
Compared with prior art, the utility model has the beneficial effects that：
1) use spring fixing portion, when using the elastic force of spring nut being unscrewed from fixing end, montant straight up withAnnular groove is detached from, and when nut is tightly screwed in fixing end, montant stretches into annular groove, limits metal tube and the fortune of fixing end radiallyIt is dynamic.
2) tightening piece fixed part is used, is entered in through-hole after tightening piece fixed part plastic deformation, to make tensioner fixPortion is disconnected with metal tube, and tightening piece is squeezed from through-hole.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's showsMeaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
Fig. 1 is the overall structure diagram of embodiment 1；
Fig. 2 is the schematic enlarged-scale view of part A in Fig. 1；
Fig. 3 is the overall structure diagram of embodiment 2；
Fig. 4 is the schematic enlarged-scale view of part A in Fig. 2.
In figure, 1, metal tube；2, fixed section；3, nut；4, thread segment；5, stepped hole；6, annular slab；7, spring；8, ringShape slot；9, round end；10, montant；11, tightening piece；12, through-hole.
Specific implementation mode
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless anotherIt indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical fieldThe identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted rootAccording to the illustrative embodiments of the application.
As used herein, unless the context clearly indicates otherwise, otherwise singulative is also intended to include plural shapeFormula, additionally, it should be understood that, when the term " comprising " and/or " including " is used in this specification, indicate in the presence of specialSign, step, operation, device, component and/or combination thereof.
The end of metal tube 1 refers to one end that metal tube 1 is connect with fixed section 2 in the application；The end of montant 10 refers toBe that montant 10 stretches into one end close with metal tube 1 in stepped hole 5.
Embodiment 1, a kind of swelled connector of air-conditioning duct, including fixed section 2, fixed section 2 is fixed with thread segment 4 to be connectedIt connects, for the fixed section 2 for connecting metal tube 1, the thread segment 4 has been connected through a screw thread other pipe fittings；The fixed section 2 is setThere are 7 fixed part of spring, 7 fixed part of the spring will be by fixing metal tube 1 along the montant 10 of 2 radial motion of fixed section.
7 fixed part of the spring includes the stepped hole 5 being arranged in fixed section 2, and montant 10, institute are equipped in the stepped hole 5The periphery upper ring cap for stating montant 10 has annular slab 6, and spring 7 is equipped between the annular slab 6 and the end face of stepped hole 5, describedThe periphery of metal tube 1 is equipped with annular groove 8, and the end of the montant 10 is stretched into annular groove 8.
The quantity of 7 fixed part of the spring can be individually or multiple.The end of the montant 10 is equipped with round end9.The periphery of the fixed section 2 is equipped with external screw thread, and 2 periphery of the fixed section is fixedly connected by external screw thread with nut 3.The outer diameter of the fixed section 2 is less than the outer diameter of thread segment 4.
Operation principle：When using the present apparatus, thread segment 4 is fixedly connected by screw thread with other pipe fittings, it then will be goldenBelong to pipe 1 and be inserted into fixed part, the end face of 1 end of metal tube presses closer on the end face of thread segment 4, at this time on the periphery of fixing endScrew preset nut 3, nut 3 is moved towards the direction of thread segment 4, when nut 3 encounters montant 10, with hand by montant 10 toIt pushes so that the end of montant 10 is stretched into annular groove 8, montant 10 is arrived completely into stepped hole 5, then proceeding to rotating nuts 3Predeterminated position, at this time the upper end of montant 10 press closer on nut 3, end is stretched into annular groove 8.
It is reversed to unscrew nut 3 when needing to detach metal tube 1 with fixed section 2
The other structures of embodiment 2, the present embodiment are same as Example 1, and difference place is that fixed section 2, which is additionally provided with, to rise11 fixed part of tight block, 11 fixed part of tightening piece are arranged between 7 fixed part of the end of metal tube 1 and spring, the tightening piece 11Fixed part includes the through-hole 12 being arranged on fixed section 2, and the end of the metal tube 1 is equipped with tightening piece 11.
Operation principle：The operation principle of the present embodiment and documents 1 are essentially identical, and difference place is:
Metal tube 1 stretches into after fixed section 2, and the distal end faces of metal tube 1 are contacted with the end face of thread segment 4, at this time tensionerBlock 11 occurs plastic deformation and enters in through-hole 12, and metal tube 1 realizes positioning with fixed section 2, and then rotating nuts 3 realize perpendicularThe effect of bar 10 and 11 Dual positioning of tightening piece.
When needing metal tube 1 to be detached with fixed section 2, tightening piece 11, tightening piece 11 are squeezed using rod piece from through-hole 12It can be detached from from through-hole 12.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this fieldFor art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repairChange, equivalent replacement, improvement etc., should be included within the protection domain of the application.