Push-pull type inflatable chuck

Abstract

The push-pull type inflation chuck comprises a chuck body and a locking assembly, the chuck body comprises an air inlet end and an air tap connecting end, an air inlet channel is formed in the air inlet end, an air tap connecting cavity communicated with the air inlet channel is formed in the air tap connecting end, and a clamping groove communicated with the air tap connecting cavity is formed in the air tap connecting end; the locking assembly comprises an elastic locking piece and a push-pull sleeve, the elastic locking piece comprises a locking piece body and a locking piece, the clamping head body is sleeved with the locking piece body, the locking piece extends inwards from the locking piece body and extends into the air nozzle connecting cavity through the clamping groove, a first pressing block is arranged on the outer wall of the elastic locking piece in a protruding mode, and the elastic locking piece is movably sleeved with the push-pull sleeve. A second pressing block is arranged on the inner wall of the push-pull sleeve in a protruding mode, and the second pressing block and the first pressing block can be mutually extruded in the moving process of the push-pull sleeve. Locking and unlocking of the tire valve are achieved through forward and reverse sliding of the push-pull sleeve, the structure is simple, locking is firmer, and the air tightness of the inflation chuck is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inflating chuck, and more particularly to a push-pull inflating chuck. BACKGROUND

[0002] The inflating chuck is a tool specially designed to be connected to the tire valve, which is used to inflate the tire of the automobile, bicycle or other vehicles. The chuck is usually made of metal or durable plastic, one end of which is a standard interface connected to the air compressor or portable inflator, and the other end is a design that can tightly fit the tire valve to ensure that there is no air leakage during the inflation process.

[0003] At present, the existing inflating chuck is usually fixed on or removed from the valve cap by pressing or pulling the clamping plate hook on the chuck, which will cause a large amount of gas to be sprayed from the valve at the moment of the chuck being put into or removed from the valve cap, wasting the gas source and affecting the inflation amount. Some inflating chucks extend the clamping piece into the air inlet chuck on one side, and then clamp into the tire valve thread groove on one side. The one-sided clamping method is not reliable, easy to loosen, laborious and poor in air tightness. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the present application is proposed. The advantage of the present application is to provide a push-pull inflating chuck, which can realize the extrusion of the two extension arms by the sliding of the push-pull sleeve, so as to clamp the two locking pieces into the thread groove of the tire valve. The valve can be unlocked by sliding in the opposite direction to relax the extension arm. The structure is simple, the locking is more firm, the air tightness of the inflating chuck is improved, and the operation convenience of the inflating chuck is effectively improved by setting the control head which can be clamped and unlocked by one hand.

[0005] In order to achieve the above at least one advantage, the present application provides a push-pull inflating chuck, which comprises a chuck main body, an air inlet end and a valve connecting end. The air inlet end is provided with an air inlet channel, the valve connecting end is provided with a valve connecting cavity in communication with the air inlet channel, the valve connecting end is provided with a clamping groove in communication with the valve connecting cavity, and the valve connecting cavity is provided with a top stop piece. The locking assembly comprises a elastic locking piece and a push-pull sleeve. The elastic locking piece comprises a locking piece main body and a locking piece. The locking piece main body is sleeved outside the chuck main body, and the locking piece extends inward from the locking piece main body and extends into the valve connecting cavity through the clamping groove. The outer wall of the elastic locking piece is provided with a first pressing block protruding outward. The push-pull sleeve is movably sleeved outside the elastic locking piece. The inner wall of the push-pull sleeve is provided with a second pressing block protruding outward. The second pressing block can be extruded with the first pressing block during the movement of the push-pull sleeve.

[0006] In the push-pull type inflation chuck, the elastic locking piece comprises a base and an extension arm, the base is sleeved on the chuck body, the extension arm extends from the base towards the air nozzle connecting end, and the locking sheet extends from the extension arm towards the air nozzle connecting cavity.

[0007] In the push-pull type inflation chuck, the inner wall of the push-pull sleeve is provided with a guide groove, and the extension arm, the first pressing block and the second pressing block are arranged in the guide groove.

[0008] In the push-pull type inflation chuck, the extension arm is provided with a first limiting block, the bottom of the air nozzle connecting end is provided with a second limiting block, the second pressing block is movably arranged between the first limiting block and the second limiting block, and the two sides of the guide groove are provided with guide strips.

[0009] In the push-pull type inflation chuck, the locking assembly is provided with two extension arms, and the two extension arms are arranged at two ends of the base, respectively. The inner wall of the push-pull sleeve is correspondingly provided with two guide grooves.

[0010] In the push-pull type inflation chuck, the extension arm extends outwardly and obliquely from the base towards the air nozzle connecting end, and the locking sheet is arranged at the end of the extension arm.

[0011] In the push-pull type inflation chuck, the push-pull sleeve is provided with a control head, the control head is protruded on the outer wall of the push-pull sleeve, and the control head is provided with a textured surface.

[0012] In the push-pull type inflation chuck, a connector is further arranged, and the connector is detachably connected with the air inlet end.

[0013] In the push-pull type inflation chuck, the top stopper comprises a top rod and a top pin, the top pin is arranged on the top rod, and the top rod is provided with a ventilation opening to connect the air inlet channel and the air nozzle connecting cavity.

[0014] In the push-pull type inflation chuck, a sealing ring is arranged between the top stopper and the chuck body.

[0015] The further purposes and advantages of the present application will be fully understood through the following description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description thereof taken in conjunction with the accompanying drawings, in which: The accompanying drawings provide a further understanding of the present application and constitute a part of this specification, illustrate embodiments of the present application, and together with the description serve to explain the present application. In the drawings:

[0017] Figure 1 Fig. 1 shows a schematic diagram of the overall structure of a push-pull inflation chuck according to an embodiment of the present application.

[0018] Figure 2 Fig. 1 shows a schematic diagram of the overall structure of a push-pull inflation chuck according to an embodiment of the present application.

[0019] Figure 3 Fig. 1 shows a schematic diagram of the overall structure of a push-pull inflation chuck according to an embodiment of the present application.

[0020] Fig. 1 shows a schematic diagram of the overall structure of a push-pull inflation chuck according to an embodiment of the present application.

[0021] Chucking body 1; air inlet end 11; air inlet channel 110; air nozzle connecting end 12; air nozzle connecting cavity 120; clamping groove 121; top stop 13; top rod 131; top pin 132; air vent 133; sealing ring 14;

[0022] Locking assembly 2; elastic locking piece 21; locking piece body 211; first pressing block 2111; base 2112; extension arm 2113; first limiting block 2114; second limiting block 122; locking plate 212; push-pull sleeve 22; second pressing block 221; guide groove 222; guide strip 223; control head 224; textured surface 2241;

[0023] Connector 3. DETAILED DESCRIPTION

[0024] Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be understood that the exemplary embodiments described herein are merely some of the embodiments of the present application, and the present application is not limited by the example embodiments described herein.

[0025] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in an embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0026] In the disclosure of the utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as limiting the utility model.

[0027] As Figures 1-2 shown, the structure of the push-pull type inflation chuck according to the embodiment of the application is illustrated. Wherein, the push-pull type inflation chuck comprises a chuck main body 1 and a locking assembly 2, the chuck main body 1 comprises an air inlet end 11 and an air nozzle connecting end 12, the air inlet end 11 is provided with an air inlet channel 110, the air nozzle connecting end 12 is provided with an air nozzle connecting cavity 120 which is in communication with the air inlet channel 110, the air nozzle connecting end 12 is provided with a clamping groove 121 which is in communication with the air nozzle connecting cavity 120, and the air nozzle connecting cavity 120 is provided with a top stop piece 13; specifically, the top stop piece 13 comprises a top rod 131 and a top pin 132, the top pin 132 is arranged on the top rod 131, and the top rod 131 is provided with an air vent 133 to connect the air inlet channel 110 and the air nozzle connecting cavity 120. Preferably, a sealing ring 14 is arranged between the top stop piece 13 and the chuck main body 1, which effectively improves the sealing performance of the inflation chuck when the inflation chuck is clamped with the tire air nozzle for inflation.

[0028] Further, the locking assembly 2 comprises an elastic locking piece 21 and a push-pull sleeve 22, the elastic locking piece 21 comprises a locking piece main body 211 and a locking plate 212, the locking piece main body 211 is sleeved outside the chuck main body 1, the locking plate 212 extends inward from the locking piece main body 211 and extends into the air nozzle connecting cavity 120 through the clamping groove 121, and the outer wall of the elastic locking piece 212 is protrusively provided with a first pressing block 2111, the push-pull sleeve 22 is movably sleeved outside the elastic locking piece 21, the inner wall of the push-pull sleeve 22 is protrusively provided with a second pressing block 221, and the second pressing block 221 can be extruded with the first pressing block 2111 during the movement of the push-pull sleeve 22. It should be understood that the parts where the first pressing block 2111 and the second pressing block 221 abut against are all arc surfaces, which can more smoothly realize the relative sliding during extrusion.

[0029] Specifically, the elastic lock 21 comprises a base 2112 and an extension arm 2113, the base 2112 is sleeved on the chuck body 1, the extension arm 2113 extends from the base 2112 towards the air nozzle connecting end 12, and the lock piece 212 extends from the extension arm 2113 towards the air nozzle connecting cavity 120. Preferably, the extension arm 2113 extends obliquely outward from the base 2112 towards the air nozzle connecting end 12, and the lock piece 212 is arranged at the end of the extension arm 2113.

[0030] That is, when the push-pull sleeve 22 moves towards the air nozzle connecting end 12, the second pressing block 221 and the first pressing block 2111 press each other, offsetting the extension arm 2113 away from the chuck body 1, at this time the lock piece 212 is driven to extend into the air nozzle connecting cavity 120 and can be clamped with the thread groove on the tire air nozzle, at this time the inflating chuck is in a locked state; when the push-pull sleeve 22 moves towards the air inlet end 11, the first pressing block 2111 is separated from the second pressing block 221, the extension arm 2113 moves away from the chuck body 1 under the action of the elastic force, and the lock piece 212 also moves away from the air nozzle connecting cavity 120, so that it can be separated from the thread groove on the tire air nozzle, at this time the inflating chuck is in an unlocked state.

[0031] Preferably, in the example of the present application, two extension arms 2113 are arranged on the lock assembly 2, and two second pressing blocks 221 are arranged in the push-pull sleeve 22, so that the two lock pieces 212 are inserted into the thread groove of the tire air nozzle, making the clamping of the tire air nozzle more firm, and effectively avoiding air leakage caused by air nozzle falling off or unstable connection during inflation. It should be understood that the number of extension walls in the present application is only an example and is not limited by the present application.

[0032] In particular, as shown in Figure 2 and Figure 3 , the inner wall of the push-pull sleeve 22 is provided with a guide groove 222, and the extension arm 2113, the first pressing block 2111 and the second pressing block 221 are arranged in the guide groove 222. That is, during the movement of the push-pull sleeve 22, the extension arm 2113, the first pressing block 2111 and the second pressing block 221 slide along the guide groove 222, avoiding the deflection of the push-pull sleeve 22 during the pushing and pulling process, so that the first pressing block 2111 and the second pressing block 221 cannot be connected. Preferably, two guide grooves 222 are arranged on the inner wall of the push-pull sleeve 22, and the number of guide grooves 222 can correspond to the number of extension arms 2113, which is not limited by the present application.

[0033] It is worth mentioning that the first limiting block 2114 is protruded on the extension arm 2113, the second limiting block 122 is protruded on the bottom of the air nozzle connecting end 12, the second pressing block 221 is movably arranged between the first limiting block 2114 and the second limiting block 122, the guide strips 223 are protruded on both sides of the guide groove 222, and the push-pull sleeve 22 can be pushed and pulled until the second pressing block 221 abuts against the first limiting block 2114 or until the bottom surface of the guide strips 223 abuts against the second limiting block 122. In other words, the stroke of the push-pull sleeve 22 is limited by the first limiting block 2114 and the second limiting block 122, and the push-pull sleeve 22 can be prevented from being separated from the locking assembly 2.

[0034] The control head 224 is arranged on the push-pull sleeve 22, the control head 224 is protruded on the outer wall of the push-pull sleeve 22, and the textured surface 2241 is arranged on the control head 224. In this way, the user can only use one hand to complete clamping and unlocking, and the operation convenience of the inflatable chuck is effectively improved.

[0035] Further, the inflatable chuck further comprises the connector 3 which is detachably connected with the air inlet end 11. It should be understood that the connector 3 can be connected with the air source as an adapter.

[0036] The basic principle of the application is described above in combination with specific embodiments, but it should be pointed out that the advantages, advantages, effects and the like mentioned in the application are only examples and not limitations, and these advantages, advantages, effects and the like cannot be considered as the must-have of each embodiment of the application. In addition, the above-mentioned specific details are only for the purpose of example and for the purpose of understanding, and are not limited to the application, and the above-mentioned details do not limit the application to the must-use of the above-mentioned specific details.

Claims

1. A push-pull inflation collet, characterized by, include: The chuck body includes an air inlet end and an air nozzle connection end. The air inlet end is provided with an air inlet channel, and the air nozzle connection end is provided with an air nozzle connection cavity that communicates with the air inlet channel. The air nozzle connection end is provided with a slot that communicates with the air nozzle connection cavity, and a top stop is provided in the air nozzle connection cavity. A locking assembly includes an elastic locking element and a push-pull sleeve. The elastic locking element includes a locking element body and a locking plate. The locking element body is sleeved on the outside of the clamping head body. The locking plate extends inward from the locking element body and extends into the air nozzle connection cavity through the slot. A first pressure block is protruding on the outer wall of the elastic locking element. The push-pull sleeve is movably sleeved on the outside of the elastic locking element. A second pressure block is protruding on the inner wall of the push-pull sleeve. The second pressure block can press against the first pressure block during the movement of the push-pull sleeve.

2. A push-pull inflation collet according to claim 1, wherein, The elastic locking element includes a base and an extension arm. The base is sleeved outside the chuck body, the extension arm extends from the base toward the air nozzle connection end, and the locking plate extends from the extension arm toward the air nozzle connection cavity.

3. A push-pull inflation collet according to claim 2, wherein, The inner wall of the push-pull sleeve is provided with a guide groove, and the extension arm, the first pressure block and the second pressure block are disposed in the guide groove.

4. A push-pull inflation collet according to claim 3, wherein, The extension arm is provided with a first limiting block protruding from it, the bottom of the air nozzle connection end is provided with a second limiting block protruding from it, the second pressure block is movably disposed between the first limiting block and the second limiting block, and guide strips are provided on both sides of the guide groove.

5. A push-pull inflation collet according to claim 4, wherein, The locking assembly is provided with two extension arms, which are respectively located at both ends of the base, and the inner wall of the push-pull sleeve is provided with two guide grooves.

6. A push-pull inflation collet according to claim 2, wherein, The extension arm extends outward at an angle from the base toward the air nozzle connection end, and the locking plate is disposed at the end of the extension arm.

7. A push-pull inflation collet according to claim 1, wherein The push-pull sleeve is provided with a control head, which protrudes from the outer wall of the push-pull sleeve and has a textured surface.

8. A push-pull inflation collet according to claim 1, wherein, It also includes a connector that is detachably connected to the air intake.

9. A push-pull inflation collet according to claim 1, wherein, The top stop includes a top rod and a top pin. The top pin is disposed on the top rod, and the top rod is provided with a vent to connect the air inlet channel and the air nozzle connecting cavity.

10. A push-pull inflation collet according to claim 9, wherein, A sealing ring is provided between the top stop and the chuck body.

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