Inflation and deflation valve for bicycle tire

Abstract

The utility model relates to a bicycle tire inflation and deflation valve which is applied to the technical field of tire air taps and comprises a valve core, an air rod and a base, the valve core is arranged at one end of the air rod in a penetrating mode, the base is connected to the other end of the air rod, and the two ends of the air rod are each sleeved with a reinforcing hoop. And the pair of reinforcing hoops are hooped on the outer wall of the air rod. The air rod has the advantages that the overall structural strength is high, and the two ends of the air rod are not prone to expansion deformation due to large air pressure.

Description

Technical Field

[0001] The present application relates to the technical field of tire air nozzles, and in particular to a bicycle tire inflation and deflation nozzle. Background Art

[0002] An air nozzle is a device used to control the flow of gas and is widely used in inflatable products such as tires, balloons, and air cushions. Its basic function is to allow air to be inflated into inflatable products through tools such as air pumps, while preventing gas leakage to maintain the internal air pressure of the inflatable products.

[0003] In the related technology, a bicycle tire air nozzle is designed for inflating and deflating bicycle tires. The overall structure of this type of air nozzle is relatively slender. On the one hand, the longer air nozzle can adapt to different wheel rim thicknesses, making inflation more convenient. On the other hand, the thinner air nozzle can provide more precise air pressure control, making the air pressure inside the tire more stable. Therefore, this design can better improve the performance of the air nozzle itself.

[0004] However, regarding the above-mentioned related technologies, the inventors believe that since the structure of this type of air nozzle is slender, when the tire is inflated, both ends of the nozzle will be subjected to a large air pressure from the air pump and the tire at the same time, which may easily cause expansion and deformation, and eventually lead to cracks and damage. Utility Model Content

[0005] In order to improve the problem that both ends of the air nozzle are prone to expansion and deformation when subjected to high air pressure from the air pump and the tire, and eventually lead to cracks and damage, the present application provides a bicycle tire inflation and deflation nozzle.

[0006] The present application provides a bicycle tire inflation and deflation nozzle adopts the following technical solution:

[0007] A bicycle tire inflation and deflation nozzle comprises a valve core, an air rod and a base, wherein the valve core is inserted through one end of the air rod, the base is connected to the other end of the air rod, both ends of the air rod are sleeved with reinforcing hoops, and a pair of the reinforcing hoops are clamped tightly on the outer wall of the air rod.

[0008] Optionally, the outer wall of the gas rod is provided with annular grooves at a pair of the reinforcing hoops, and the pair of the reinforcing hoops are arranged in the pair of annular grooves one by one. The outer wall of the gas rod is also integrally formed with a plurality of annular ridges at the pair of the annular grooves, and the plurality of annular ridges are distributed at intervals along the axial direction of the gas rod.

[0009] Optionally, a first air cavity and a second air cavity are provided in the gas rod, the first air cavity is communicated with the second air cavity, the diameter of the first air cavity is larger than the diameter of the second air cavity, and the valve core is disposed in the first air cavity.

[0010] Optionally, a reinforcing ridge is integrally formed on a side of the base facing the gas rod, and the reinforcing ridge is arranged around the periphery of the gas rod.

[0011] Optionally, the valve core includes a screw, a sleeve and a nut. The screw is inserted into the sleeve and both ends of the screw extend out of the sleeve. The nut is threadedly connected to one end of the screw located outside the gas rod. An air hole is provided on a side of the nut close to the sleeve. A sealing assembly is provided at one end of the screw and the sleeve located inside the gas rod. The sealing assembly is used to seal the sleeve and the gas rod.

[0012] Optionally, the sealing assembly includes a first sealing ring and a second sealing ring, the first sealing ring is sleeved on the screw rod, the first sealing ring is tightened or loosened on the screw sleeve under the drive of the screw rod, the second sealing ring is sleeved on the screw sleeve, and the second sealing ring is tightened against the inner wall of the gas rod.

[0013] Optionally, it also includes a valve cap, which is matched with the valve core and is threadedly connected to the nut.

[0014] The above-mentioned bicycle tire inflation and deflation nozzle has a pair of reinforcing hoops respectively sleeved on the two ends of the air rod and both are tightly clamped on the outer wall of the air rod, thereby improving the overall structural strength of the air rod and preventing the two ends of the air rod from expanding and deforming under high air pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a bicycle tire inflation and deflation nozzle in an embodiment of the present application.

[0016] Figure 2 It is a cross-sectional view of the gas rod in the embodiment of the present application.

[0017] Figure 3 It is an exploded view of the bicycle tire inflation and deflation nozzle in the embodiment of the present application.

[0018] Figure numerals: 1. valve core; 11. screw rod; 12. screw sleeve; 13. nut; 131. air hole; 2. gas rod; 21. ring groove; 3. base; 4. reinforcement hoop; 5. annular ridge; 6. first air cavity; 7. second air cavity; 8. reinforcement ridge; 9. sealing assembly; 91. first sealing ring; 92. second sealing ring; 10. air nozzle cap. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-3 This application is described in further detail.

[0020] The present application embodiment discloses a bicycle tire inflation and deflation nozzle. Figure 1 and Figure 2The bicycle tire inflation and deflation nozzle comprises a valve core 1 and an air rod 2, wherein the valve core 1 is partially disposed in the air rod 2. Specifically, a first air cavity 6 and a second air cavity 7 are formed inside the air rod 2, wherein the first air cavity 6 is connected to the second air cavity 7, and the diameter of the first air cavity 6 is greater than the diameter of the second air cavity 7, and the valve core 1 is actually partially disposed in the first air cavity 6. Therefore, the larger diameter of the first air cavity 6 provides sufficient installation space for the valve core 1, while the second air cavity 7 only needs to have a normal ventilation function, and thus its diameter is smaller, so that the air rod 2 can have a larger wall thickness, thereby improving the overall structural strength of the air rod 2.

[0021] Reference Figure 1 and Figure 3 , a pair of reinforcing hoops 4 are sleeved on the outer wall of the gas rod 2, and the pair of reinforcing hoops 4 are respectively arranged at the two ends of the gas rod 2. Specifically, an annular groove 21 is opened on the outer wall of the gas rod 2 at the pair of reinforcing hoops 4, and the annular groove 21 is adapted to the reinforcing hoop 4. A plurality of annular ridges 5 are integrally formed on the groove wall of the pair of annular grooves 21, and the plurality of annular ridges 5 are distributed at intervals along the axial direction of the gas rod 2. Therefore, after the reinforcing hoop 4 is sleeved on the gas rod 2, it can be completely embedded in the annular groove 21, and is fixed in the annular groove 21 under the friction force of the plurality of annular ridges 5, so that it can be clamped tightly on the outer wall of the gas rod 2, so as to further improve the overall structural strength of the gas rod 2, so that the two ends of the gas rod 2 are not easy to expand and deform under high air pressure.

[0022] Reference Figure 1 and Figure 3 A base 3 is provided at one end of the gas rod 2 away from the valve core 1. The base 3 is threadedly connected to the gas rod 2 to increase the fixing area between the gas rod 2 and the tire, so that the gas rod 2 is not easy to fall off after being fixed to the tire. In addition, a reinforcing ridge 8 is integrally formed at the periphery of the gas rod 2 on the side of the base 3 facing the gas rod 2. The reinforcing ridge 8 can improve the structural strength of the connection between the gas rod 2 and the base 3, making it difficult for the gas rod 2 and the base 3 to break and separate, and can also further reduce the possibility of expansion and deformation at the end of the gas rod 2.

[0023] Reference Figure 2 The valve core 1 is composed of a screw rod 11, a screw sleeve 12 and a nut 13. Specifically, the screw rod 11 is inserted into the screw sleeve 12, and the screw sleeves 12 are extended at both ends. The nut 13 is threadedly connected to one end of the screw rod 11 located outside the gas rod 2, and an air hole 131 is opened on the side facing the screw sleeve 12. In addition, a sealing assembly 9 is also provided at one end of the screw rod 11 and the screw sleeve 12 located inside the gas rod 2. The sealing assembly 9 consists of a first sealing ring 91 and a second sealing ring 92. The first sealing ring 91 is sleeved on the screw rod 11, and the second sealing ring 92 is sleeved on the screw sleeve 12.

[0024] Therefore, when the valve core 1 is partially inserted into the gas stem 2 , the second sealing ring 92 will abut against the inner wall of the gas stem 2 to achieve a sealed connection between the valve core 1 and the gas stem 2 , making it difficult for gas to leak between the valve core 1 and the gas stem 2 . When inflating, loosen the nut 13, and the screw 11 moves toward the inside of the gas rod 2 under the drive of the nut 13, and drives the first sealing ring 91 away from the end of the screw sleeve 12. At this time, the screw sleeve 12 is open, and the external gas can be pumped into the screw sleeve 12 through the air hole 131 by tools such as an air pump, so that the gas flows through the gas rod 2 and enters the inflatable product; when the inflation is completed, tighten the nut 13, and the screw 11 moves toward the outside of the gas rod 2 under the drive of the nut 13, and drives the first sealing ring 91 to approach and finally press against the end of the screw sleeve 12. At this time, the screw sleeve 12 is closed, and under the sealing action of the first sealing ring 91, the internal gas of the inflatable product is not easy to escape through the gas rod 2 and the screw sleeve 12, thereby improving the sealing of the entire gas nozzle.

[0025] Reference Figure 2 and Figure 3 The bicycle tire inflation and deflation nozzle also includes a nozzle cap 10, which is matched with the valve core 1 and is threadedly connected to the screw sleeve 12 to protect the part of the valve core 1 located outside the air rod 2, so that the valve core 1 is not easily damaged by external factors when not in use, thereby extending the service life of the entire nozzle.

[0026] The implementation principle of a bicycle tire inflation and deflation nozzle in an embodiment of the present application is as follows: a pair of reinforcing hoops 4 are sleeved on the outer wall of the air rod 2, and the pair of reinforcing hoops 4 are respectively arranged at both ends of the air rod 2. After the reinforcing hoops 4 are sleeved on the air rod 2, they can be tightly clamped to the outer wall of the air rod 2, thereby improving the overall structural strength of the air rod 2, making it difficult for the two ends of the air rod 2 to expand and deform under high air pressure.

[0027] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bicycle tire inflation and deflation nozzle, characterized in that: The invention comprises a valve core (1), a gas rod (2) and a base (3), wherein the valve core (1) is inserted through one end of the gas rod (2), the base (3) is connected to the other end of the gas rod (2), and both ends of the gas rod (2) are provided with reinforcing hoops (4), and a pair of the reinforcing hoops (4) are clamped tightly on the outer wall of the gas rod (2).

2. A bicycle tire inflation and deflation nozzle according to claim 1, characterized in that: The outer wall of the gas rod (2) is provided with annular grooves (21) at a pair of the reinforcing hoops (4), and the pair of the reinforcing hoops (4) are arranged in a one-to-one correspondence in the pair of the annular grooves (21). The outer wall of the gas rod (2) is also integrally formed with a plurality of annular ridges (5) at a pair of the annular grooves (21), and the plurality of annular ridges (5) are distributed at intervals along the axial direction of the gas rod (2).

3. The bicycle tire inflation and deflation nozzle according to claim 1, characterized in that: A first air cavity (6) and a second air cavity (7) are provided in the air rod (2); the first air cavity (6) and the second air cavity (7) are connected; the diameter of the first air cavity (6) is larger than the diameter of the second air cavity (7); and the valve core (1) is inserted into the first air cavity (6).

4. The bicycle tire inflation and deflation nozzle according to claim 1, characterized in that: A reinforcing ridge (8) is integrally formed on one side of the base (3) facing the gas rod (2), and the reinforcing ridge (8) is arranged around the periphery of the gas rod (2).

5. The bicycle tire inflation and deflation nozzle according to claim 1, characterized in that: The valve core (1) comprises a screw rod (11), a screw sleeve (12) and a nut (13); the screw rod (11) is inserted into the screw sleeve (12) and both ends extend out of the screw sleeve (12); the nut (13) is threadedly connected to one end of the screw rod (11) located outside the gas rod (2); an air hole (131) is provided on one side of the nut (13) close to the screw sleeve (12); a sealing component (9) is provided at one end of the screw rod (11) and the screw sleeve (12) located inside the gas rod (2); the sealing component (9) is used to seal the screw sleeve (12) and the gas rod (2).

6. A bicycle tire inflation and deflation nozzle according to claim 5, characterized in that: The sealing assembly (9) comprises a first sealing ring (91) and a second sealing ring (92), wherein the first sealing ring (91) is sleeved on the screw rod (11), and the first sealing ring (91) is pressed against or loosened on the threaded sleeve (12) under the drive of the screw rod (11), and the second sealing ring (92) is sleeved on the threaded sleeve (12), and the second sealing ring (92) is pressed against the inner wall of the gas rod (2).

7. A bicycle tire inflation and deflation nozzle according to claim 5, characterized in that: It also comprises a valve cap (10), the valve cap (10) is matched with the valve core (1), and the valve cap (10) is threadedly connected with the screw sleeve (12).

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