A type of air nozzle with a vent valve

Abstract

This utility model relates to the field of air pump nozzle technology, and in particular discloses an air pump nozzle with a release valve, including a nozzle shell. The nozzle shell is composed of an integrally formed transverse shell and a longitudinal shell. The transverse shell has a cavity with a compression device installed inside, and the longitudinal shell has an air channel communicating with the cavity. A transverse insertion groove perpendicular to the air channel is provided in the longitudinal shell. A valve body is rotatably installed in the transverse insertion groove. The valve body includes a sealing post rotatably installed in the transverse insertion groove, and a completely penetrating vent hole is formed on the sealing post. The beneficial effect is that it realizes the integrated function of inflation and controllable deflation. The user can precisely control the deflation process by simply rotating the exposed valve body knob. The operation is extremely simple and intuitive, requiring no additional tools, and completely solves the pain points of difficult and uncontrollable deflation of traditional air pump nozzles.

Description

Technical Field

[0001] This utility model relates to the field of air pump nozzle technology, and in particular to an air nozzle with a release valve. Background Technology

[0002] Traditional tire valves generally use a standard Schrader valve core structure, whose main function is limited to inflating and maintaining tire pressure. In practical use, if it is necessary to deflate a tire (such as adjusting the tire pressure of a mountain bike to adapt to different road conditions, or reducing the pressure of a high-pressure tire for easy removal), users often lack convenient and effective specialized tools. The usual method of deflation is to press the valve core, which has significant drawbacks: the deflation speed is difficult to control precisely, and dust and impurities are easily introduced during the operation, leading to valve core blockage or seal failure, affecting the long-term reliability of the valve.

[0003] Furthermore, the structures of some existing air nozzles with integrated deflation functions are often quite complex. They mostly use side buttons or knobs to open the valve core, but this design suffers from problems such as long internal air passages and multiple sealing components. This not only increases gas flow resistance and affects inflation efficiency but also raises manufacturing costs and the risk of leakage. At the same time, the deflation function of these nozzles is usually independent of the inflation channel and not effectively integrated, resulting in a less compact overall structure and poor applicability in space-constrained installation scenarios.

[0004] Therefore, the market urgently needs a new type of valve structure that highly integrates inflation and controllable deflation functions, has a compact and reliable structure, is easy to operate, and has excellent sealing performance, in order to solve the practical difficulties encountered by users in the fine management of tire pressure. Utility Model Content

[0005] This invention provides an air nozzle with a vent valve to solve the above-mentioned problems.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A vent valve includes a vent housing composed of an integrally formed transverse shell and a longitudinal shell. The transverse shell contains a cavity for mounting a compression device, and the longitudinal shell contains an air passage communicating with the cavity. The cavity has a connecting end and an operating end. A wrench for axially moving the compression device within the cavity is rotatably mounted on the operating end via a rotating pin. A limit cap is threadedly connected to the connecting end of the transverse shell. A first airtight ring is embedded in the connecting end between the limit cap and the compression device. A transverse insertion groove perpendicular to the air passage is provided in the longitudinal shell. A valve body is rotatably mounted in the transverse insertion groove. The valve body includes a sealing post rotatably mounted in the transverse insertion groove, and a fully penetrating vent hole is formed on the sealing post.

[0008] Furthermore, the compression device includes a sliding cylinder rotatably mounted in the transverse housing cavity. A sealing ring is embedded on the surface of the sliding cylinder that contacts the cavity. A core column for pushing the valve core to open is formed at the center of one end of the sliding cylinder. An extension cylinder surrounding the core column is formed at one end of the sliding cylinder. The diameter of the extension cylinder is smaller than the diameter of the cavity. Several venting grooves are formed on the extension cylinder.

[0009] Furthermore, one end of the sealing column is formed with a support portion that extends through the transverse insertion groove and extends to the outside of the longitudinal housing. The outer circle of the support portion is formed with a limiting groove for installing a clamp that restricts the position of the valve body. The other end of the sealing column is formed with a positioning plate, and the outer wall of the positioning plate is formed with a knob portion.

[0010] Furthermore, a limiting groove is formed on the end face of the longitudinal housing that fits into the positioning plate to limit the rotation angle of the valve body, and a limiting block is formed on the end face of the positioning plate that fits into the limiting groove.

[0011] Furthermore, a weight-reducing groove is formed inside the sealing column.

[0012] Furthermore, a second airtight ring is embedded at one end of the air passage near the inner cavity of the transverse housing. One end of the second airtight ring is formed with an arc surface that fits against the outer wall of the sealing post. An anti-rotation tangent is formed on the side wall of the second airtight ring, and an anti-rotation protrusion is formed in the air passage at the position corresponding to the anti-rotation tangent.

[0013] Furthermore, a screw cap is threadedly installed at one end of the longitudinal housing away from the transverse housing, and a connecting nozzle connected to the inflation tube is slidably installed inside the screw cap.

[0014] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0015] 1. It integrates inflation and controllable deflation functions, allowing users to precisely control the deflation process simply by rotating the exposed valve knob. The operation is extremely simple and intuitive, requiring no additional tools, and completely solves the pain points of traditional air nozzles, such as difficulty and uncontrollability in deflation.

[0016] 2. The structure is scientifically designed and has high sealing reliability. The valve body is tightly fitted with the second airtight ring in the air passage through the anti-rotation tangent on the sealing column, ensuring absolute airtightness in the closed state.

[0017] 3. The design of the limit groove and the limit block ensures that the rotation angle of the valve body is precisely limited, which not only prevents damage caused by excessive rotation, but also provides clear operation feedback to users through a clear gear feel. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a main sectional view of the present invention;

[0020] Figure 2 This is the first perspective view of the present invention;

[0021] Figure 3 This is the second perspective view of the present invention;

[0022] Figure 4 This is the front view of this utility model;

[0023] Figure 5 This is a perspective view of the compression device of this utility model;

[0024] Figure 6 This is a first perspective view of the valve body of this utility model;

[0025] Figure 7 This is a second perspective view of the valve body of this utility model;

[0026] Figure 8 This is a perspective view of the second airtight ring of this utility model;

[0027] Figure 9 This is a schematic diagram of the adapter structure for converting a mouthpiece to a French mouthpiece.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Air nozzle housing; 11. Transverse housing; 12. Longitudinal housing; 13. Air passage; 14. Connecting air nozzle; 15. Screw cap; 16. Limiting groove; 17. Connecting end; 18. Operating end; 2. Compression device; 21. Sliding cylinder; 22. Extension cylinder; 23. Vent groove; 24. Core column; 3. First airtight ring; 4. Limiting screw cap; 5. Transverse insertion groove; 6. Second airtight ring; 61. Anti-rotation slit; 7. Valve body; 71. Sealing column; 72. Vent hole; 73. Support part; 74. Limiting slot; 75. Positioning plate; 76. Knob part; 77. Weight reduction groove; 78. Limiting block; 8. Rotating pin; 9. Wrench. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1-4 As shown, an air nozzle with a vent valve includes an air nozzle housing 1, which is composed of an integrally formed, mutually perpendicular transverse housing 11 and a longitudinal housing 12. The transverse housing 11 has a cavity for mounting a compression device 2, and the longitudinal housing 12 has an air passage 13 communicating with the cavity. This integrated structure improves overall rigidity and sealing, and facilitates processing and assembly. The cavity has a connecting end 17 and an operating end 18. A wrench 9, which pushes the compression device 2 axially within the cavity, is rotatably mounted in the operating end 18 via a rotating pin 8. The wrench 9 achieves effortless operation of the compression device 2 through leverage, improving ease of use. A limit cap 4 is threadedly connected to the connecting end 17 of the transverse housing 11, facilitating disassembly and maintenance. The device provides protection and stable axial positioning. A first airtight ring 3 is installed between the limiting cap 4 and the pressing device 2 and is embedded in the connecting end 17. The first airtight ring 3 is used to form a reliable seal between the pressing device 2 and the limiting cap 4 to prevent gas leakage. This structure is suitable for tires with valves. No adapter is needed, and the tires can be inflated directly. A transverse insertion groove 5 perpendicular to the air passage 13 is provided in the longitudinal housing 12. A valve body 7 is rotatably installed in the transverse insertion groove 5. The valve body 7 includes a sealing post 71 rotatably installed in the transverse insertion groove 5. A fully penetrating vent hole 72 is formed on the sealing post 71. By rotating the valve body 7, the alignment or misalignment of the vent hole 72 with the air passage 13 can be controlled to realize the on / off control of the air passage. The structure is simple and easy to operate.

[0032] In another preferred embodiment of the present invention, a nozzle conversion connector (such as...) is threadedly connected to the central vent hole of the limiting cap 4. Figure 9 As shown in the figure, it is a standard part and will not be described in detail. This makes the valve suitable for inflating and deflating tires with valves installed.

[0033] As another preferred embodiment of the present invention, such as Figure 5 As shown, the compression device 2 includes a sliding cylinder 21 rotatably mounted in the cavity of the transverse housing 11. A sealing ring is embedded on the surface of the sliding cylinder 21 that contacts the cavity. The sealing ring ensures the airtightness of the sliding cylinder 21 when it moves in the cavity, preventing gas from leaking from the side. A core post 24 for pushing the valve core to open is formed at the center of one end of the sliding cylinder 21. The core post 24 can directly push open the valve core to achieve rapid inflation or deflation. An extension cylinder 22 is formed at one end of the sliding cylinder 21 that surrounds the core post 24. The end of the extension cylinder 22 abuts against the end face of the first airtight ring 3. The structure of the extension cylinder 22 helps to guide the airflow and reduce contact with the cavity, thus reducing movement resistance. The diameter of the extension cylinder 22 is smaller than the diameter of the cavity. Several venting grooves 23 are formed on the extension cylinder 22. The venting grooves 23 enable the gas to flow evenly and improve the inflation and deflation efficiency.

[0034] As another preferred embodiment of the present invention, such as Figures 6-7 As shown, one end of the sealing column 71 is formed with a support portion 73 that extends from the transverse insertion groove 5 to the outside of the longitudinal housing 12. A sealing ring is embedded on the surface of the sealing column 71, the support portion 73 and the transverse insertion groove 5. The sealing ring ensures the airtightness of the valve body 7 when it rotates in the transverse insertion groove 5 and prevents gas from leaking from the side. A limiting groove 74 is formed on the outer circle of the support portion 73 for installing a retainer that limits the position of the valve body 7. The limiting groove 74 cooperates with retainers such as snap rings to prevent the valve body 7 from axially dislodging and improve safety. A positioning plate 75 is formed on the other end of the sealing column 71. A knob portion 76 is formed on the outer wall of the positioning plate 75. The knob portion 76 provides a better operating feel and makes it easier for the user to rotate and control the air passage.

[0035] As another preferred embodiment of the present invention, such as Figure 2 , Figure 7 As shown, a limiting groove 16 is formed on the end face of the longitudinal housing 12 that fits into the positioning plate 75 to limit the rotation angle of the valve body 7. A limiting block 78 is formed on the end face of the positioning plate 75 that fits into the limiting groove 16. The limiting groove 16 and the limiting block 78 cooperate to limit the rotation angle of the valve body 7 and avoid excessive rotation that could lead to sealing failure or structural damage.

[0036] As another preferred embodiment of the present invention, such as Figure 7 As shown, a weight-reducing groove 77 is formed inside the sealing column 71. The weight-reducing groove 77 reduces the weight of the valve body 7 while ensuring structural strength, thereby reducing the operating torque and improving operational flexibility.

[0037] As another preferred embodiment of the present invention, such as Figure 1 , Figure 8 As shown, a second airtight ring 6 is embedded at one end of the air passage 13 near the inner cavity of the transverse housing 11. The second airtight ring 6 further enhances the sealing performance between the air passage 13 and the valve body 7. One end of the second airtight ring 6 is formed with an arc surface that fits against the outer wall of the sealing post 71. The arc surface design increases the contact area and sealing effect with the sealing post 71. An anti-rotation tangent 61 is formed on the side wall of the second airtight ring 6. An anti-rotation protrusion is formed in the air passage 13 at the position corresponding to the anti-rotation tangent 61. The anti-rotation tangent 61 and the anti-rotation protrusion cooperate to prevent the second airtight ring 6 from rotating in the air passage 13, ensuring its long-term sealing stability.

[0038] As another preferred embodiment of the present invention, such as Figures 1-4 As shown, a screw cap 15 is threaded onto one end of the longitudinal housing 12 away from the transverse housing 11. The screw cap 15 facilitates the disassembly and replacement of internal parts and can also compress the inflation tube connected to the connecting nozzle 14 to secure it firmly. The connecting nozzle 14, which is connected to the inflation tube, is slidably installed inside the screw cap 15.

[0039] The working principle of this utility model is as follows:

[0040] When the valve needs to be closed (i.e., in a normally sealed state), the operator rotates the knob 76 of the valve body 7, causing the sealing column 71 to rotate. This causes the vent 72 on its side wall to fit tightly against the arc surface of the second airtight ring 6 inside the air passage 13, while the axis of the vent 72 is perpendicular to the axis of the air passage 13. At this time, the openings at both ends of the vent 72 are sealed by the inner wall of the air passage 13, thus completely blocking the gas flow path and completely sealing the gas inside the tire.

[0041] When inflation or deflation is required, the operator rotates the knob 76 of the valve body 7 in the opposite direction by about 90 degrees. The vent 72 inside the valve body 7 rotates accordingly until its axis coincides with the axis of the air passage 13, forming a continuous gas passage.

[0042] During inflation, high-pressure gas is injected through the connecting nozzle 14, flows sequentially through the connected air passage 13 and vent 72, and enters the cavity of the transverse housing 11. At this time, the wrench 9 is rotated approximately 90 degrees to contact the end face of the compression device 2, pushing it towards the connecting end 17. During this process, the core column 24 at the front end of the sliding cylinder 21 pushes open the tire's own valve core, allowing the high-pressure gas to enter the tire through the vent groove 23 on the extension cylinder 22 of the compression device 2. After inflation is complete, the air pump is removed, and the wrench 9 is rotated approximately 90 degrees in the opposite direction. The combined action of the tire's internal air pressure and the return spring force causes the compression device 2 to reset, closing the tire valve core and sealing the gas inside the tire.

[0043] During deflation, valve body 7 remains open but is not connected to inflation equipment. The high-pressure gas inside the tire can flow out in reverse along the above path: that is, after the gas pushes open the tire valve core, it passes through the cavity, vent hole 72, and air passage 13, and finally escapes from the gap between the connecting nozzle 14 and the screw cap, thus achieving controlled deflation.

[0044] Components not described in detail in this article are existing technologies.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nozzle with a vent valve, comprising a nozzle housing (1), the nozzle housing (1) being composed of an integrally formed transverse housing (11) and a longitudinal housing (12), wherein a cavity for mounting a pressing device (2) is formed in the transverse housing (11), and an air passage (13) communicating with the cavity is formed in the longitudinal housing (12), the cavity having a connecting end (17) and an operating end (18), wherein a wrench (9) for axially moving the pressing device (2) within the cavity is rotatably mounted in the operating end (18) via a rotating pin (8), and a limiting cap (4) is threadedly connected to the connecting end (17) of the transverse housing (11), wherein a first airtight ring (3) is installed between the limiting cap (4) and the pressing device (2) and embedded in the connecting end (17), characterized in that: The longitudinal housing (12) is provided with a transverse insertion groove (5) perpendicular to the air passage (13). A valve body (7) is rotatably installed in the transverse insertion groove (5). The valve body (7) includes a sealing column (71) rotatably installed in the transverse insertion groove (5). A fully penetrating vent hole (72) is formed on the sealing column (71).

2. The air nozzle with a vent valve according to claim 1, characterized in that: The compression device (2) includes a sliding cylinder (21) rotatably installed in the cavity of the transverse housing (11). A sealing ring is embedded on the surface of the sliding cylinder (21) that contacts the cavity. A core column (24) for pushing the valve core to open is formed at the center of one end of the sliding cylinder (21). An extension cylinder (22) surrounding the core column (24) is formed at one end of the sliding cylinder (21). Several ventilation grooves (23) are formed on the extension cylinder (22).

3. The air nozzle with a vent valve according to claim 1, characterized in that: One end of the sealing column (71) is formed with a support portion (73) that extends through the transverse insertion groove (5) and extends to the outside of the longitudinal housing (12). The outer circle of the support portion (73) is formed with a limiting groove (74) for installing a clip that restricts the position of the valve body (7). The other end of the sealing column (71) is formed with a positioning plate (75). The outer wall of the positioning plate (75) is formed with a knob portion (76).

4. The air nozzle with a vent valve according to claim 3, characterized in that: The longitudinal housing (12) has a limiting groove (16) formed on the end face of the positioning plate (75) to limit the rotation angle of the valve body (7), and a limiting block (78) is formed on the end face of the positioning plate (75) to fit into the limiting groove (16).

5. The air nozzle with a vent valve according to claim 1, characterized in that: The sealing column (71) has a weight-reducing groove (77) formed inside.

6. The air nozzle with a vent valve according to claim 1, characterized in that: The air passage (13) is fitted with a second airtight ring (6) at one end near the inner cavity of the transverse shell (11). One end of the second airtight ring (6) is formed with an arc surface that fits against the outer wall of the sealing column (71). An anti-rotation tangent (61) is formed on the side wall of the second airtight ring (6). An anti-rotation protrusion is formed in the air passage (13) at the position corresponding to the anti-rotation tangent (61).

7. The air nozzle with a vent valve according to claim 1, characterized in that: The longitudinal housing (12) is threadedly fitted with a screw cap (15) at one end away from the transverse housing (11), and a connecting nozzle (14) connected to the inflation tube is slidably installed inside the screw cap (15).

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