Air pump adapter

Abstract

The utility model discloses an air pump adapter which comprises an air tap, an air tap combination piece and a clamp spring, the clamp spring comprises a connecting part and two elastic arms, the two elastic arms are connected through the connecting part, the air tap combination piece is arranged at one end of the air tap in a sleeved mode, two avoiding windows are formed in the peripheral wall of the air tap combination piece, and the air tap combination piece is connected with the clamp spring through the two avoiding windows. A clamping groove is formed in the peripheral face of the air nozzle, and the middles of the two elastic arms penetrate through the two receding windows to be clamped into the clamping groove. According to the air pump adapter, the clamping spring arranged outside the air tap connector penetrates through the avoiding window to be clamped into the clamping groove of the air tap, so that the air tap is axially limited, and the air tap is prevented from being separated from the air tap connector. When the air tap needs to be replaced, the air tap can be withdrawn from the air tap connector only by applying force to the clamping spring to enable the two elastic arms to be far away from each other. According to the air pump adapter, the air tap and the air tap combination piece are fast to disassemble and assemble, and a user can replace the air tap according to the actual use condition greatly conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to air pump technical field especially relates to air pump adapter. BACKGROUND

[0002] In order to use small inflator to inflate tire and other inflating articles, need a gas pipe to connect inflating article and inflator together, and the connection of gas pipe and inflator needs an adapter, that is, one end of adapter is connected with gas pipe, and the other end is connected with inflator. The adapter generally includes a gas nozzle detachably connected with a gas nozzle connecting piece, and the existing adapter usually adopts threaded connection of gas nozzle and gas nozzle connecting piece, so that the gas nozzle is difficult to assemble and disassemble, and it is inconvenient to replace the gas nozzle according to actual use. UTILITY MODEL CONTENTS

[0003] The utility model wants to solve the technical problem that provide a kind of air pump adapter of gas nozzle easy to dismount.

[0004] In order to solve the above technical problem, the technical scheme that the utility model adopts is as follows: air pump adapter, including gas nozzle, gas nozzle connecting piece and clasp spring, the clasp spring includes connecting portion and two elastic arms, two the elastic arms are connected by the connecting portion, the gas nozzle connecting piece is set in one end of the gas nozzle, two avoiding windows are set on the peripheral wall of the gas nozzle connecting piece, the outer circumferential surface of the gas nozzle is set with clamping groove, the middle part of two the elastic arms is respectively passed two the avoiding windows and is clamped into the clamping groove.

[0005] Further, the clasp spring is made of metal or plastic.

[0006] Further, the end of the elastic arm away from the connecting portion is bent inwardly and protrudes to form a contraction portion.

[0007] Further, the outer circumferential surface of the gas nozzle is provided with a protruding limiting lug, and the end of the gas nozzle connecting piece close to the gas nozzle is provided with a spiral limiting groove, when the limiting lug is placed at the bottom of the limiting groove, the clamping groove is located inside the avoiding window.

[0008] Further, the outer circumferential edge of the end of the gas nozzle close to the gas nozzle connecting piece is provided with a chamfer structure.

[0009] Further, a sealing ring is arranged between the gas nozzle and the gas nozzle connecting piece.

[0010] Further, the outer circumferential surface of the gas nozzle or the inner circumferential surface of the gas nozzle connecting piece is provided with a ring groove, and the sealing ring is arranged in the ring groove.

[0011] Further, the number of the sealing ring is multiple.

[0012] Further, the outer periphery of the end of the gas nozzle connecting piece away from the gas nozzle is provided with external threads.

[0013] Further, the inner periphery of the gas nozzle connecting piece is provided with a protruding limiting shoulder, which is in abutment with the gas nozzle.

[0014] The gas pump adapter of the present application has the following advantages: the clamping spring provided outside the gas nozzle connecting piece is clamped into the clamping groove of the gas nozzle through the avoiding window, thereby forming axial limiting for the gas nozzle, and avoiding separation of the gas nozzle and the gas nozzle connecting piece. When the gas nozzle needs to be replaced, the two elastic arms are separated by applying force to the clamping spring, so that the gas nozzle is removed from the gas nozzle connecting piece. The gas pump adapter has quick disassembly and assembly of the gas nozzle and the gas nozzle connecting piece, which greatly facilitates the user to replace the gas nozzle according to the actual use condition. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Figure 1 is a schematic diagram of the overall structure of the gas pump adapter of the first embodiment of the present application;

[0016] Figure 2 Figure 2 is a sectional view of the gas pump adapter of the first embodiment of the present application;

[0017] Figure 3 Figure 3 is an exploded view of the gas pump adapter of the first embodiment of the present application.

[0018] REFERENCE NUMERALS

[0019] 1, gas nozzle; 11, clamping groove; 12, limiting protrusion; 13, chamfer structure; 14, ring groove;

[0020] 2, gas nozzle connecting piece; 21, avoiding window; 22, limiting groove; 23, external thread; 24, limiting shoulder;

[0021] 3, clamping spring; 31, connecting part; 32, elastic arm; 33, contraction part;

[0022] 4, sealing ring. DETAILED DESCRIPTION

[0023] In order to describe the technical content, purposes and effects of the present application in detail, the following will be described in conjunction with the drawings.

[0024] Please refer to Figures 1 to 3The utility model provides a gas pump adapter, including air nozzle 1, air nozzle combination piece 2 and clasp 3, two the elastic arm 32 is connected through the connecting portion 31, the air nozzle combination piece 2 is set on one end of air nozzle 1, two relief windows 21 are set up on the circumference wall of air nozzle combination piece 2, and the outer circumferential surface of air nozzle 1 is provided with clamping groove 11, and the middle part of two elastic arms 32 respectively passes through two relief windows 21 and is clamped into clamping groove 11.

[0025] From the above description, the utility model has the beneficial effect that: the utility model discloses a gas pump adapter, including air nozzle 1, air nozzle combination piece 2 and clasp 3, two the elastic arm 32 is connected through the connecting portion 31, the air nozzle combination piece 2 is set on one end of air nozzle 1, two relief windows 21 are set up on the circumference wall of air nozzle combination piece 2, and the outer circumferential surface of air nozzle 1 is provided with clamping groove 11, and the middle part of two elastic arms 32 respectively passes through two relief windows 21 and is clamped into clamping groove 11.

[0026] Further, the clasp 3 is made of metal or plastic.

[0027] From the above description, the material of the clasp 3 can be selected according to actual use needs or production conditions.

[0028] Further, the end of the elastic arm 32 away from the connecting portion 31 is bent inwardly to form a contraction portion 33.

[0029] From the above description, the contraction portion 33 is used to limit the radial movement of the clasp 3 along the air nozzle combination piece 2, avoiding the accidental withdrawal of the clasp 3 from the clamping groove 11, which leads to the separation of the air nozzle 1 and the air nozzle combination piece 2.

[0030] Further, the outer circumferential surface of the air nozzle 1 is provided with a protruding limiting protrusion 12, and the end of the air nozzle combination piece 2 close to the air nozzle 1 is provided with a spiral limiting groove 22, when the limiting protrusion 12 is placed at the bottom of the limiting groove 22, the clamping groove 11 is located inside the relief window 21.

[0031] From the above description, the limiting protrusion 12 and the limiting groove 22 cooperate to preliminarily position the air nozzle 1 and the air nozzle combination piece 2, which is convenient for the user to align the relief window 21 and the clamping groove 11.

[0032] Further, the outer circumferential edge of the end of the air nozzle 1 close to the air nozzle combination piece 2 is provided with a chamfer structure 13.

[0033] From the above description, the chamfer structure 13 can play a guiding role, which is convenient for the air nozzle 1 to be inserted into the air nozzle combination piece 2.

[0034] Further, a sealing ring 4 is arranged between the air nozzle 1 and the air nozzle connector 2.

[0035] As described above, the sealing ring 4 is used to close the assembly gap between the air nozzle 1 and the air nozzle connector 2, preventing air leakage.

[0036] Further, a ring groove 14 is arranged on the outer circumferential surface of the air nozzle 1 or the inner circumferential surface of the air nozzle connector 2, and the sealing ring 4 is arranged in the ring groove 14.

[0037] As described above, the ring groove 14 is used to limit the position of the sealing ring 4, preventing displacement of the sealing ring 4.

[0038] Further, the number of the sealing ring 4 is multiple.

[0039] As described above, multiple sealing rings 4 can further enhance the air leakage prevention effect.

[0040] Further, an external thread 23 is arranged on the outer circumferential surface of the end of the air nozzle connector 2 away from the air nozzle 1.

[0041] As described above, the air nozzle connector 2 can be connected with the air pump through the external thread 23.

[0042] Further, a protruding limiting shoulder 24 is arranged on the inner circumferential surface of the air nozzle connector 2, and the limiting shoulder 24 abuts against the air nozzle 1.

[0043] As described above, the limiting shoulder 24 can limit the relative position of the air nozzle 1 and the air nozzle connector 2 in the axial direction, and can also bear the axial force.

[0044] Please refer to Figures 1 to 3 The embodiment one of the utility model discloses a air pump adapter, including air nozzle 1, air nozzle connector 2 and clasp spring 3, clasp spring 3 includes connecting portion 31 and two elastic arms 32, two elastic arms 32 are connected through connecting portion 31, air nozzle connector 2 is set up in one end of air nozzle 1, and two avoiding windows 21 are set up on the circumferential wall of air nozzle connector 2, and clamping groove 11 is set up on the outer circumferential surface of air nozzle 1, and the middle part of two elastic arms 32 respectively passes two avoiding windows 21 and is clamped into clamping groove 11. Specifically, air nozzle 1 and air nozzle connector 2 are all cylindrical. Two elastic arms 32 are parallel to each other, and the extension direction of elastic arm 32 is perpendicular to the axial direction of air nozzle 1. The number of clamping groove 11 is two, two clamping grooves 11 are symmetrically arranged, and the bottom surfaces of two clamping grooves 11 are parallel to each other, and the extension direction of clamping groove 11 is perpendicular to the axial direction of air nozzle 1. Clasp spring 3 is metal material. In other embodiments, air nozzle 1 or air nozzle connector 2 can be provided as a prism-shaped cylinder, and it is also feasible that clamping groove 11 is arranged around the circumferential direction of air nozzle 1, and it is also feasible that clasp spring 3 is plastic material.

[0045] AsFigure 1 and Figure 3 As shown, the end of the elastic arm 32 away from the connecting part 31 bends inward and protrudes to form a contraction part 33. Specifically, the distance between the two contraction parts 33 is less than the distance between the two slots 11. The contraction part 33 is used to restrict the movement of the retaining spring 3 along the radial direction of the air nozzle coupling 2, and to prevent the retaining spring 3 from accidentally dislodging from the slot 11 and causing the air nozzle 1 and the air nozzle coupling 2 to separate.

[0046] like Figure 1 and Figure 3 As shown, the outer circumferential surface of the air nozzle 1 is provided with a protruding limiting protrusion 12, and the end of the air nozzle connector 2 near the air nozzle 1 is provided with a spiral limiting groove 22. When the limiting protrusion 12 is placed at the bottom of the limiting groove 22, the slot 11 is located inside the clearance window 21. Specifically, there are two limiting protrusions 12, which are arranged around the circumference of the air nozzle 1, and the limiting groove 22 is set in a one-to-one correspondence with the limiting protrusion 12.

[0047] like Figure 2 As shown, a protruding limiting shoulder 24 is provided on the inner circumferential surface of the air nozzle connector 2, which abuts against the air nozzle 1. The limiting shoulder 24 can limit the relative position of the air nozzle 1 and the air nozzle connector 2 in the axial direction, and also serves to bear the force along the axial direction of the air nozzle 1, preventing the limiting protrusion 12 from deforming or even breaking under the action of axial force. The edge of the limiting shoulder 24 is chamfered to facilitate the insertion of the end of the air nozzle 1.

[0048] like Figure 2 and Figure 3 As shown, the outer peripheral edge of the nozzle 1 near the nozzle connector 2 has a chamfered structure 13. It is easy to understand that the chamfered structure 13 can serve as a guide to facilitate the insertion of the nozzle 1 into the nozzle connector 2.

[0049] like Figure 2 and Figure 3 As shown, a sealing ring 4 is provided between the air nozzle 1 and the air nozzle connector 2. Specifically, the outer circumferential surface of the air nozzle 1 has an annular groove 14, and the sealing ring 4 is disposed in the annular groove 14. The sealing ring 4 is used to seal the assembly gap between the air nozzle 1 and the air nozzle connector 2 to prevent air leakage. In other embodiments, it is also feasible to have an annular groove 14 on the inner circumferential surface of the air nozzle connector 2, and to have the sealing ring 4 disposed in the annular groove 14 of the air nozzle connector 2; it is also feasible to have multiple sealing rings 4, and to have multiple sealing rings 4 arranged along the axial direction of the air nozzle 1.

[0050] like Figure 1 and Figure 3 As shown, the outer circumferential surface of the air nozzle connector 2, away from the air nozzle 1, is provided with an external thread 23. The air nozzle connector 2 can be connected to the air pump via the external thread 23.

[0051] In summary, the air pump adapter provided by the utility model uses the clasp spring arranged outside the air nozzle combination part to be clamped into the clamping groove of the air nozzle through the avoiding window, so that axial limiting is formed on the air nozzle, and separation of the air nozzle and the air nozzle combination part is avoided.

[0052] The above merely describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation or direct or indirect application in the related technical field based on the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. An air pump adaptor, characterised in that: The utility model provides a gas nozzle, gas nozzle joint and snap spring, the snap spring includes connecting part and two elastic arms, two elastic arms are connected through connecting part, the gas nozzle joint is sleeved in one end of gas nozzle, two avoiding windows are set up on the circumference wall of gas nozzle joint, the outer circumferential surface of gas nozzle is provided with the clamping groove, and the middle part of two elastic arms respectively passes two avoiding windows and is clamped into the clamping groove.

2. The gas pump adapter of claim 1, wherein: The snap spring is made of metal or plastic.

3. The air pump adaptor of claim 1, wherein: The end of the elastic arm away from the connecting part is bent inward and protrudes to form a contraction part.

4. The air pump adaptor of claim 1, wherein: The outer circumferential surface of the gas nozzle is provided with a protruding limiting lug, and the end of the gas nozzle joint close to the gas nozzle is provided with a spiral limiting groove; when the limiting lug is placed at the bottom of the limiting groove, the clamping groove is located inside the avoiding window.

5. The air pump adaptor of claim 1, wherein: The outer circumferential edge of the end of the gas nozzle close to the gas nozzle joint is provided with a chamfer structure.

6. The air pump adaptor of claim 1, wherein: A sealing ring is arranged between the gas nozzle and the gas nozzle joint.

7. The air pump adaptor of claim 6, wherein: The outer circumferential surface of the gas nozzle or the inner circumferential surface of the gas nozzle joint is provided with a ring groove, and the sealing ring is arranged in the ring groove.

8. The air pump adaptor of claim 6, wherein: The number of the sealing rings is multiple.

9. The air pump adaptor of claim 1, wherein: The outer circumferential surface of the end of the gas nozzle joint away from the gas nozzle is provided with an external thread.

10. The air pump adaptor of claim 1, wherein: The inner circumferential surface of the gas nozzle joint is provided with a protruding limiting shoulder, and the limiting shoulder is in abutment with the gas nozzle.

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