Universal air tap connector for American valve and French valve

By setting the valve body, positioner and thimble in the shaft hole of the air nozzle shell, and using the rotary valve body and elastic locking rubber ring, a universal air nozzle joint for American and French nozzles is designed, which solves the problems of complex, large volume and large operating space in the existing technology, and achieves rapid, convenient and stable inflation of American and French nozzles.

CN222880458UActive Publication Date: 2025-05-16PINGXIANG ZHUOCHANG MASCH MFG CO LTD
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Patent Information

Application Number
CN202421747289.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-05-16
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

The internal devices of the dual-purpose inflatable nozzles in the prior art are complex, with too large volume and too large operating space, making it difficult to be compatible with the stable inflation of the beauty and the machining mouth.

Method used

A universal air nozzle joint for American and French mouths is designed. By installing a valve body, a positioner and a thimble in the shaft hole of the air nozzle shell, the rotary valve body and elastic locking rubber ring are used to achieve stable inflation of American and French mouths.

Benefits of technology

It achieves fast, convenient and stable inflation of American and French mouths, with simple structure, small size and low production costs, and is suitable for large-scale promotion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a universal air tap joint for American and French taps, and relates to the technical field of inflators, a valve body, a positioner and an ejector pin are arranged in a shaft hole, the valve body and the positioner are sequentially arranged between a handle press-in opening and a locking rubber ring, the valve body is provided with a first air inlet channel for the ejector pin to slide, and the first air inlet channel and the shaft hole are coaxially arranged; the section of the first air inlet channel is in a rounded rectangle shape, a second air inlet channel allowing the ejector pin to slide is arranged in the positioner in a penetrating mode, the section of the second air inlet channel is in a rounded rectangle shape, the ejector pin comprises a connecting end and an abutting end abutting against the air supply nozzle, and the section of the connecting end is in a rounded rectangle shape. The connecting end can be sealed with the inner wall of the second air inlet channel on the sliding path, a ventilation gap is formed between the connecting end and the inner wall of the first air inlet channel, an operator only needs to control rotation of the valve body, stable inflation of the American nozzle and the French nozzle can be achieved in a shaft hole of the air nozzle shell, use is convenient, the size is small, and the production and manufacturing cost is low; the method is suitable for large-scale popularization.
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Description

Technical Field

[0001] The utility model relates to the technical field of air pumps, in particular to a universal air nozzle connector for American and French nozzles. Background Art

[0002] There are two main types of inflation joints for bicycle tires: Schnabel and Presta. Therefore, the inflation nozzle of the air pump needs to be able to effectively inflate Schnabel inflation joints and Presta inflation joints.

[0003] The dual-purpose inflation nozzle in the prior art often needs to be provided with two independent American nozzle interfaces and French nozzle interfaces, which are respectively used to connect with the corresponding American nozzle inflation connector and French nozzle inflation structure. The internal device of the dual-purpose inflation nozzle in the prior art is relatively complex, and the volume of the inflation nozzle is often too large, and the operating space during use is also too large.

[0004] At present, there is an urgent need to propose a universal gas nozzle connector for American and French nozzles, which can be compatible with American and French nozzles through one connector, and has a simple structure, easy operation and small size. Utility Model Content

[0005] The purpose of the utility model is to provide a universal gas nozzle connector for American and French nozzles to solve the problems existing in the above-mentioned prior art. The operator only needs to control the rotation of the valve body to achieve stable inflation of American and French nozzles in an axial hole of the gas nozzle shell. The utility model has a simple structure, a quick and convenient switching process, a small overall volume, and a low production cost, and is suitable for large-scale promotion.

[0006] To achieve the above-mentioned purpose, the utility model provides the following scheme: Provide a universal gas nozzle connector for American and French nozzles, including a gas nozzle housing, an air inlet nozzle, a handle, and a locking rubber ring, wherein the gas nozzle housing is provided with an axial hole, a handle pressing inlet, and a gas nozzle docking interface, the gas inlet nozzle is communicated with the axial hole, the handle pressing inlet and the gas nozzle docking interface are communicated with two ends of the axial hole, the locking rubber ring is located in the axial hole close to the gas nozzle docking interface, and the locking rubber ring has a ring opening for the gas nozzle to extend into;

[0007] A valve body, a positioner and an ejector pin are arranged in the shaft hole, and the valve body and the positioner are arranged in sequence between the handle pressure inlet and the locking rubber ring. The valve body is rotatably coaxially sleeved in the shaft hole, and the valve body is provided with a first air inlet channel for the ejector pin to slide. The first air inlet channel is coaxially arranged with the shaft hole, and an air inlet port connected with the shaft hole is arranged on the first air inlet channel. The cross-section of the first air inlet channel is a rounded rectangle, and the positioner abuts against the inner wall of the shaft hole. A second air inlet channel for the ejector pin to slide is penetrated in the positioner, and the second air inlet channel The second air inlet channel is docked with the first air inlet channel, and the cross-section of the second air inlet channel is a rounded rectangle. An ejector pin air outlet is penetrated by the ejector pin, and the ejector pin includes a connecting end and an abutting end abutting the air supply nozzle. The cross-section of the connecting end is a rounded rectangle. There is a ventilation gap between the connecting end and the inner walls of the first air inlet channel and the second air inlet channel on the sliding path. The circumscribed circle diameter of the abutting end is smaller than the circumscribed circle diameter of the connecting end, and the diameter of the ring opening of the locking rubber ring is between the circumscribed circle diameter of the abutting end and the circumscribed circle diameter of the connecting end.

[0008] Preferably, a spring is further included, one end of the spring is connected to the ejector pin, the other end of the spring is connected to the valve body, and the axis of the spring is colinear with the axis of the shaft hole.

[0009] Preferably, it also includes a conversion lever for driving the valve body to rotate, the conversion lever is fixedly connected to the valve body, and an arc-shaped rotating hole for the conversion lever to pass through is provided on the air nozzle housing, and the center line of the arc-shaped rotating hole is parallel or colinear with the axis of the shaft hole.

[0010] Preferably, the handle comprises a driving portion and a gripping portion, the driving portion is connected to the air nozzle housing through eccentric rotation of a pin, and the valve body is located on a rotation path of the driving portion.

[0011] Preferably, a sealing ring is provided between the valve body and the inner wall of the shaft hole, and the sealing ring is located between the conversion lever and the air inlet.

[0012] Preferably, a sealing ring accommodating groove is formed on the outer wall surface of the valve body, and the sealing ring is sleeved in the sealing ring accommodating groove.

[0013] Preferably, the locking rubber ring comprises a first annular body and a second annular body which are coaxially arranged, the inner ring of the first annular body matches the shape of the French nozzle, and the second annular body abuts against the inner wall of the shaft hole.

[0014] Preferably, the positioner includes an annular positioner body and a positioner inner ring, the annular positioner body surrounds the outer circumference of the positioner inner ring, the second air inlet channel is formed in the middle of the positioner inner ring, and the annular positioner body is located between the first annular body and the inner wall of the air nozzle shell.

[0015] Preferably, the air nozzle housing comprises a housing body and a valve cover, the axial hole is arranged on the housing body, the valve cover is threadedly connected to the hole of the axial hole away from the handle end, and the air nozzle docking port is arranged on the valve cover.

[0016] Preferably, the second annular body of the locking rubber ring is protrudingly provided with a fixing portion, the outer wall of the air nozzle housing is threadedly screwed to the valve cover, and the fixing portion is respectively fitted with the air nozzle housing and the valve cover.

[0017] Compared with the prior art, the utility model has achieved the following technical effects:

[0018] The utility model arranges a valve body with a first air inlet passage in the shape of a rounded rectangle in an axial hole, a positioner with a second air inlet passage in the shape of a rounded rectangle, and introduces structures such as a ejector pin that cooperate therewith. An operator only needs to control the rotation of the valve body to achieve stable inflation of the American valve and the French valve in an axial hole of the valve shell. The utility model also has a simple structure, a quick and convenient switching process, a small overall size, and a low production cost, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the overall internal structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the components of the utility model;

[0022] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the valve body structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the valve body of the utility model from another perspective;

[0025] Figure 6This is a half-section schematic diagram of the valve body of the utility model;

[0026] Figure 7 This is a schematic top view of the valve body of the utility model;

[0027] Figure 8 This is a schematic diagram of the valve body of the utility model from another perspective;

[0028] Fig. 9 This is a schematic diagram of the structure of the positioner of the utility model;

[0029] Fig.10 This is a schematic diagram of the structure of the utility model positioner when viewed from above;

[0030] Fig.11 This is a schematic diagram of the ejector structure of the utility model;

[0031] Fig.12 This is a side view of the ejector pin of the utility model;

[0032] Fig.13 This is a schematic diagram of the locking rubber ring structure of the utility model;

[0033] Fig.14 This is the connection diagram of the utility model beauty nozzle;

[0034] Fig.15 This is the nozzle connection diagram of the utility model.

[0035] Among them, 1. air nozzle housing; 11. handle pressing inlet; 12. conversion lever; 13. arc-shaped rotating hole; 2. valve body; 21. first air inlet channel; 22. air inlet; 23. sealing ring; 24. sealing ring accommodating groove; 25. spring;

[0036] 3. Positioner; 31. Second air inlet channel; 32. Positioner inner ring; 33. Ring-shaped positioner body;

[0037] 4. ejector pin; 41. ejector pin vent; 42. connection end; 43. abutment end; 44. guide groove;

[0038] 5. Locking rubber ring; 51. Ring opening; 52. First annular body; 53. Second annular body; 54. Fixing part;

[0039] 6. Air intake nozzle;

[0040] 7. handle; 71. gripping portion; 72. driving portion; 73. pin;

[0041] 8. Valve cover; 81. Air nozzle docking port;

[0042] 9. Beautiful mouth; 10. French mouth. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0045] Please refer to Figures 1 to 15As shown, in this embodiment, a universal gas valve connector for American and French valves is provided, including a gas valve housing 1, an air inlet 6, a handle 7 and a locking rubber ring 5. An axial hole, a handle pressing inlet 11 and a gas valve docking port 81 are provided on the gas valve housing 1. The handle 7 presses down the valve body 2 through the handle pressing inlet 11. A gas valve docking port 81 is provided at the bottom of the gas valve housing 1. A French gas valve or an American gas valve is passed into the interior of the gas valve housing 1 through the gas valve docking port 81. The handle pressing inlet 11 and the gas valve docking port 81 are connected to both ends of the axial hole. The locking rubber ring 5 is sleeved inside the axial hole and close to the gas valve docking port 81. A ring opening 51 is formed in the locking rubber ring 5. A valve body 2, a positioner 3 and an ejector pin 4 are provided in the axial hole. The valve body 2 and the positioner 3 are sequentially arranged between the handle pressing inlet 11 and the locking rubber ring 5. The valve body 2 is sleeved in the axial hole. The valve body 2 can rotate in the axial hole. The valve body 2 can move axially along the axis of the axial hole. A first air inlet channel 21 is provided in the valve body 2, and the ejector pin 4 can slide in the first air inlet channel 21, and the first air inlet channel 21 is coaxially arranged with the shaft hole, and an air inlet port 22 is provided on the first air inlet channel 21, and the air inlet port 22 is connected with the shaft hole, and the cross section of the first air inlet channel 21 is a rounded rectangle. The positioner 3 is sealed against the inner wall of the shaft hole, and the positioner 3 is strictly sealed with the inner wall of the shaft hole. The positioner 3 can slide along its axis in the shaft hole, but the positioner 3 cannot rotate in the shaft hole. A second air inlet channel 31 is provided in the positioner 3, and the second air inlet channel 31 is connected with the first air inlet channel 21, and preferably the second air inlet channel 31 and the first air inlet channel 21 form a closed gas passage. The cross section of the second air inlet channel 31 is a rounded rectangle. An ejector pin outlet hole 41 is provided through the ejector pin 4, and the ejector pin outlet hole 41 is connected with the first air inlet channel 21 or the second air inlet channel 31. The ejector pin 4 includes a connecting end 42 and an abutting end 43, and the cross section of the connecting end 42 is a rounded rectangle. There is a ventilation gap between the connecting end 42 and the inner walls of the first air inlet channel 21 and the second air inlet channel 31 on the sliding path, and the diameter of the ring opening 51 of the locking rubber ring 5 is between the diameter of the circumscribed circle of the cross section of the abutting end 43 and the diameter of the circumscribed circle of the cross section of the connecting end 42, so as to ensure that the abutting end 43 can pass through the ring opening 51, and the connecting end 42 can be blocked by the locking rubber ring 5 to prevent it from sliding outward; preferably, a guide groove 44 is provided at the bottom of the ejector pin 4.

[0046] Working principle: the valve body 2 can rotate in the shaft hole, the cross section of the first air inlet channel 21 in the valve body 2 is a rounded rectangle, the cross section of the second air inlet channel 31 in the positioner 3 is a rounded rectangle, and the connecting end 42 of the ejector pin 4 is a rounded rectangle structure, and the ejector pin 4 can slide in the first air inlet channel 21 and the second air inlet channel 31. In this way, it is ensured that the ejector pin 4 can only strictly move axially in the first air inlet channel 21 and the second air inlet channel 31.

[0047] When it is necessary to control the valve body 2 of the American nozzle 9 to rotate in the axial hole so that the end face of the valve body 2 abuts against the end face of the connecting end 42, the ejector pin 4 is arranged in the second air inlet passage 31, and the valve body 2 is controlled to rotate in the axial hole so that the end face of the valve body 2 abuts against the end face of the connecting end 42. Preferably, the first air inlet passage 21 and the connecting end 42 of the ejector pin 4 are made perpendicular to the first air inlet passage 21 and the connecting end 42 are fully reduced, so that the overlapping area of ​​the first air inlet passage 21 and the connecting end 42 is sufficiently reduced, so that the connecting end 42 is abutted by the end face of the valve body 2 as much as possible. At this time, the ejector pin 4 is restricted in the second air inlet passage 31 and cannot move axially. The nozzle 9 is passed through the nozzle docking port 81 and enters the interior of the nozzle housing 1. The nozzle 9 enters the cavity of the locking rubber ring 5 until the end of the nozzle 9 abuts against the ejector pin 4. At this time, the end of the ejector pin 4 away from the nozzle 9 is abutted by the valve body 2, thereby achieving axial fixation of the nozzle 9. Then, the handle 7 is lifted, and the handle 7 presses down the valve body 2 and the positioner 3, so that the locking rubber ring 5 is elastically deformed, and the locking rubber ring 5 shrinks and tightens. The locking rubber ring 5 can clamp the nozzle 9 and seal the nozzle 9. The gas in the inlet nozzle 6 enters the first inlet channel 21 and the ejector pin outlet 41 through the inlet port 22, and then enters the gas channel in the nozzle 9, thereby achieving inflation of the tire with the nozzle 9.

[0048] When the French nozzle (French nozzle) 10 needs to be inflated, the control valve body 2 rotates in the shaft hole so that the first air inlet channel 21 in the valve body 2 is aligned with the connecting end 42 of the ejector pin 4, and the French nozzle 10 is passed through the air nozzle docking port 81 to enter the interior of the air nozzle housing 1. The French nozzle 10 continues to extend through the locking rubber ring 5 until the end of the French nozzle 10 abuts against the ejector pin 4. At this time, the French nozzle 10 pushes the ejector pin 4 to move upward for axial movement. The specific insertion position of the French nozzle 10 can be determined according to the inflation habit of the operator. The French nozzle 10 can be inserted into the first air inlet channel 21 in the positioner 3 or the valve body 2. Then lift the handle 7, and the handle 7 presses down the valve body 2 and the positioner 3, so that the locking rubber ring 5 undergoes elastic deformation, and the locking rubber ring 5 clamps the French nozzle 10 and seals it. The gas in the air inlet nozzle 6 enters the first air inlet channel 21 through the air inlet port 22 , and then enters the gas channel of the valve 10 through the gap between the first air inlet channel 21 and the ejector pin 4 , thereby inflating the tire with the valve 10 .

[0049] The utility model arranges a valve body 2 with a first air inlet passage 21 in the shape of a rounded rectangle in the axial hole, a positioner 3 with a second air inlet passage 31 in the shape of a rounded rectangle in the axial hole, and introduces structures such as a ejector pin 4 that cooperate therewith. An operator only needs to control the rotation of the valve body 2 to achieve stable inflation of the American nozzle 9 and the French nozzle 10 in an axial hole of the air nozzle housing 1. The utility model has a simple structure, a quick and convenient switching process, a small overall size, and a low production cost, and is suitable for large-scale promotion.

[0050] In one embodiment, a spring 25 is further included, one end of the spring 25 is fixedly connected to the ejector pin 4, and the other end of the spring 25 is fixedly connected to the valve body 2. Preferably, the spring 25 is fixedly connected to the inner wall surface of the first air inlet passage 21 away from the ejector pin 4. The axis of the spring 25 coincides (is colinear) with the axis of the axial hole. When the ejector pin 4 is pushed into the first air inlet passage 21 by the nozzle 10, the spring 25 is compressed. When the nozzle 10 is withdrawn, the spring 25 recovers its deformation, so that the ejector pin 4 can be reset. The reset position of the ejector pin 4 is as follows: the ejector pin 4 is located in the positioner 3, and the abutment end 43 is not higher than the upper part of the positioner 3, such as Figure 1 shown.

[0051] In one embodiment, a conversion lever 12 is further included, and the conversion lever 12 is fixedly connected to the valve body 2. The conversion lever 12 drives the valve body 2 to rotate. Preferably, the conversion lever 12 is sleeved with the valve body 2. An arc-shaped rotating hole 13 is provided on the valve housing 1, and the center line of the arc-shaped rotating hole 13 is parallel to or coincident with the axis of the shaft hole. The conversion lever 12 can extend out of the arc-shaped rotating hole 13, so as to facilitate the operation of personnel.

[0052] In one embodiment, the handle 7 includes a gripping portion 71 and a driving portion 72. The driving portion 72 is connected to the air valve housing 1 through an eccentric rotation of a pin 73. The valve body 2 is located on the rotation path of the driving portion 72. The driving portion 72 is driven to rotate by the gripping portion 71. The driving portion 72 can press down the valve body 2. The valve body 2 then presses down the positioner 3 to cause the locking rubber ring 5 to undergo elastic deformation, thereby enabling the locking rubber ring 5 to clamp the American nozzle 9 or the French nozzle 10 and seal the American nozzle 9 or the French nozzle 10.

[0053] In one embodiment, a sealing ring 23 is provided between the valve body 2 and the inner wall of the shaft hole, and the sealing ring 23 is below the conversion lever 12 and higher than the air inlet 22, that is, the sealing ring 23 is located between the air inlet 22 and the conversion lever 12. In this way, when the valve body 2 is assembled on the air nozzle housing 1, the sealing ring 23 can be located between the air inlet 22 and the arc-shaped rotating hole 13, and the sealing ring 23 can seal the valve body 2 and the inner wall surface of the air nozzle housing 1.

[0054] In this embodiment, a sealing ring accommodating groove 24 is provided on the outer wall surface of the valve body 2 , and the sealing ring 23 is sleeved in the sealing ring accommodating groove 24 , which can effectively ensure that the sealing ring 23 can be stably fixed on the valve body 2 .

[0055] In one embodiment, the structure of the locking rubber ring 5 is preferably an annular structure, and includes a first annular body 52 and a second annular body 53 coaxially arranged. The first annular body 52 and the second annular body 53 form a stepped structure. The diameter of the first annular body 52 is smaller than the diameter of the second annular body 53. The inner ring of the first annular body 52 forms a ring opening 51, and the inner ring of the first annular body 52 matches the shape of the abutting end 43 of the ejector pin 4. The channel and the inner ring of the first annular body 52 can clamp the abutting end 43. The outer wall of the second annular body 53 abuts against the inner wall of the shaft hole, and the locking rubber ring 5 and the air nozzle housing 1 are sealed through the second annular body 53.

[0056] In this embodiment, the positioner 3 includes a positioner inner ring 32 and an annular positioner body 33. The annular positioner body 33 is arranged around the outer periphery of the positioner inner ring 32. The annular positioner body 33 and the positioner inner ring 32 are integrally formed. The outer periphery of the positioner inner ring 32 is in contact with the inner wall of the shaft hole. The second air inlet channel 31 is formed in the middle of the positioner inner ring 32. The annular positioner body 33 is located between the first annular body 52 and the inner wall of the air nozzle housing 1, and the annular positioner body 33 is closely in contact with both.

[0057] In this embodiment, the valve housing 1 includes a housing body and a valve cover 8, the shaft hole is arranged on the housing body, the valve cover 8 is threadedly connected to the hole at the end of the shaft hole away from the handle 7, and the valve interface 81 is arranged on the valve cover 8. The connection between the valve cover 8 and the housing body is sealed.

[0058] In this embodiment, a thread is provided on the outer wall of the valve housing 1, the valve cover 8 is screwed to the valve housing 1, and the second annular body 53 of the locking rubber ring 5 is protrudingly provided with a fixing portion 54, and the fixing portion 54 is still an annular body structure. The fixing portion 54 is clamped between the valve cover 8 and the valve housing 1, and the two opposite surfaces of the fixing portion 54 are respectively fitted with the end surfaces of the valve housing 1 and the valve cover 8, thereby realizing the fixation of the locking rubber ring 5.

[0059] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0060] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A universal gas nozzle connector for American and French nozzles, comprising a gas nozzle housing, an air inlet nozzle, a handle, and a locking rubber ring, wherein the gas nozzle housing is provided with an axial hole, a handle pressing inlet, and a gas nozzle docking port, the gas inlet nozzle is communicated with the axial hole, the handle pressing inlet and the gas nozzle docking port are communicated with two ends of the axial hole, the locking rubber ring is located in the axial hole near the gas nozzle docking port, and the locking rubber ring has a ring opening for the gas nozzle to extend into, characterized in that: A valve body, a positioner and an ejector pin are arranged in the shaft hole, and the valve body and the positioner are arranged in sequence between the handle pressure inlet and the locking rubber ring. The valve body is rotatably coaxially sleeved in the shaft hole, and the valve body is provided with a first air inlet channel for the ejector pin to slide. The first air inlet channel is coaxially arranged with the shaft hole, and an air inlet port connected with the shaft hole is arranged on the first air inlet channel. The cross-section of the first air inlet channel is a rounded rectangle, and the positioner abuts against the inner wall of the shaft hole. A second air inlet channel for the ejector pin to slide is penetrated in the positioner, and the second air inlet channel The second air inlet channel is docked with the first air inlet channel, and the cross-section of the second air inlet channel is a rounded rectangle. An ejector pin air outlet is penetrated by the ejector pin, and the ejector pin includes a connecting end and an abutting end abutting the air supply nozzle. The cross-section of the connecting end is a rounded rectangle. There is a ventilation gap between the connecting end and the inner walls of the first air inlet channel and the second air inlet channel on the sliding path. The circumscribed circle diameter of the abutting end is smaller than the circumscribed circle diameter of the connecting end, and the diameter of the ring opening of the locking rubber ring is between the circumscribed circle diameter of the abutting end and the circumscribed circle diameter of the connecting end.

2. The universal gas nozzle connector for American and French nozzles according to claim 1, characterized in that: It also includes a spring, one end of which is connected to the ejector pin, the other end of which is connected to the valve body, and the axis of the spring is colinear with the axis of the shaft hole.

3. The universal gas nozzle connector for American and French nozzles according to claim 1, characterized in that: It also includes a conversion lever for driving the valve body to rotate, the conversion lever is fixedly connected to the valve body, and the air nozzle housing is provided with an arc-shaped rotating hole for the conversion lever to pass through, and the center line of the arc-shaped rotating hole is parallel or colinear with the axis of the shaft hole.

4. The universal gas nozzle connector for American and French nozzles according to claim 1, characterized in that: The handle comprises a driving part and a gripping part. The driving part is connected to the air nozzle housing through eccentric rotation of a pin, and the valve body is located on the rotation path of the driving part.

5. The universal gas nozzle connector for American and French nozzles according to claim 3, characterized in that: A sealing ring is arranged between the valve body and the inner wall of the shaft hole, and the sealing ring is located between the conversion lever and the air inlet.

6. The universal gas nozzle connector for American and French nozzles according to claim 5, characterized in that: A sealing ring accommodating groove is formed on the outer wall surface of the valve body, and the sealing ring is sleeved in the sealing ring accommodating groove.

7. The universal gas nozzle connector for American and French nozzles according to claim 1, characterized in that: The locking rubber ring comprises a first annular body and a second annular body which are coaxially arranged, wherein the inner ring of the first annular body matches the shape of the French nozzle, and the second annular body abuts against the inner wall of the shaft hole.

8. The universal gas nozzle connector for American and French nozzles according to claim 7, characterized in that: The positioner includes an annular positioner body and a positioner inner ring, the annular positioner body surrounds the outer circumference of the positioner inner ring, the second air inlet channel is formed in the middle of the positioner inner ring, and the annular positioner body is located between the first annular body and the inner wall of the air nozzle shell.

9. The universal gas nozzle connector for American and French nozzles according to claim 8, characterized in that: The air nozzle housing comprises a housing body and a valve cover, the shaft hole is arranged on the housing body, the valve cover is threadedly connected to the hole of the shaft hole away from the handle end, and the air nozzle docking port is arranged on the valve cover.

10. The universal gas nozzle connector for American and French nozzles according to claim 9, characterized in that: The second annular body of the locking rubber ring is protrudingly provided with a fixing portion, the outer wall of the air nozzle shell is screwed to the valve cover, and the fixing portion is respectively fitted with the air nozzle shell and the valve cover.