A tubeless valve

Abstract

The application relates to a tubeless valve, which comprises an upper rod and a lower rod connected movably, a valve core movably arranged in the upper rod, a rubber head arranged at the lower end of the lower rod, an annular fixing groove arranged on the rubber head and used for clamping the rubber head on a rim, a pull belt arranged on the side surface of the rubber head, the pull belt being shaped according to the outer side of the rubber head and embedded in the rubber head, one end of the pull belt extending out of the upper end of the rubber head, and the other end of the pull belt being connected with the lower end of the rubber head. The valve can separate the valve core used for air control and the rubber head used for connection, the upper rod can be replaced alone when the valve core is out of order, and the replacement is convenient; the pull belt is arranged on the side surface of the rubber head and connected with the lower end of the rubber head, the rubber head can be pulled out from the installation position through the pull belt when the rubber head is damaged, the replacement is convenient, and the maintenance is facilitated.

Description

Technical Field

[0001] This application relates to the field of valve technology, and in particular to a tubeless valve. Background Technology

[0002] A valve is a device used to inflate and maintain tire pressure. It is widely used in various vehicles, bicycles, motorcycles, and other equipment requiring inflation. Common types include compression valves, snap-on valves, and threaded valves. Compression valves achieve a seal by deforming the sealing element through mechanical pressure, resulting in a good seal. Snap-on valves are fixed to the rim using a snap ring or similar structure, making installation and removal relatively convenient. Threaded valves connect to the rim via threads, offering good stability and sealing performance.

[0003] A valve stem typically consists of a valve body, valve core, and valve cap. The valve body, also called the valve stem, is the channel connecting the tire and the inflation device. It usually comes in different shapes and sizes to accommodate different tires and rims. The valve core is the key component that controls the flow of air. It contains a spring and a sealing device. During inflation, the pressure from the inflation device opens the valve core, allowing air to enter the tire. After inflation, the valve core automatically closes under the action of the spring to prevent air leakage. The valve cap protects the valve core and prevents dust and moisture from entering.

[0004] In the prior art, valve stems are mostly made of copper or aluminum tubes, which can guide the valve installation. However, the valve stems also have some inconveniences in use, such as the excessive length of the valve stem making it difficult to install or replace the valve. In addition, most existing valves are integral structures, and once they are damaged and leak, the whole valve needs to be replaced. Replacing the valve core requires special tools, which is troublesome and inconvenient to operate. Therefore, this application proposes a tubeless valve that is easy to install and replace. Utility Model Content

[0005] This application provides a tubeless valve that is easy to install and replace.

[0006] The tubeless valve provided in this application adopts the following technical solution:

[0007] A tubeless valve includes an upper rod and a lower rod that are movably connected. A valve core is movably disposed inside the upper rod. A rubber head is disposed at the lower end of the lower rod. The rubber head is provided with an annular fixing groove and is engaged with the rim through the annular fixing groove. A pull strap is provided on the side of the rubber head. The pull strap is shaped to fit the outer shape of the rubber head and is embedded in the rubber head. One end of the pull strap extends out of the upper end of the rubber head, and the other end of the pull strap is connected to the lower end of the rubber head.

[0008] Preferably, a valve cap is movably provided at the end of the upper rod, and the valve cap and the upper rod, as well as the upper rod and the lower rod, are threadedly connected with the same thread direction.

[0009] Preferably, the valve cap has a first thread on its inner side, the upper end of the upper rod has a second thread that mates with the first thread on its outer side, the lower end of the upper rod has a third thread on its inner side, and the upper end of the lower rod has a fourth thread that mates with the third thread on its outer side. Both the first thread and the third thread are right-hand threads.

[0010] Preferably, the upper end of the rubber head is fixedly connected to the lower end of the lower rod, the pull strap is a metal strip or metal wire with rubber coating on the outside, and the lower end of the pull strap is connected to a fixing ring and the fixing ring is fixed to the lower end of the rubber head.

[0011] Preferably, the length of the upper rod is greater than the length of the lower rod, and the outer sides of the valve cap, the upper rod, and the lower rod are all provided with anti-slip protrusions.

[0012] Preferably, the horizontal cross-sectional view of the anti-slip protrusion is a regular hexagon.

[0013] Preferably, the pull strap passes through the anti-slip protrusion on the rubber head, and the sides of the upper rod and the lower rod are provided with corresponding grooves, so that the pull strap can be inserted into the grooves.

[0014] Preferably, the upper end of the pull strap has a protrusion on its outer side, and the end of the protrusion extends out of the groove.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. This application, by setting up an upper rod and a lower rod that are movably connected, and by setting a valve core and a rubber head inside the upper rod and the lower rod respectively, can separate the valve core used for inflation control and the rubber head used for connection. When the valve core fails, the upper rod can be replaced separately, and the replacement is convenient. By setting a pull strap on the side of the rubber head that fits against the outside of the rubber head, and with the lower end of the pull strap connected to the lower end of the rubber head, when the rubber head is damaged, the rubber head can be pulled out from the installation position by the pull strap, making replacement convenient and maintenance easy.

[0017] 2. By setting a valve cap at the end of the upper rod, and by using threaded connections between the valve cap and the upper rod, and between the upper rod and the lower rod, with the threads in the same direction, the valve cap can fix the upper rod and the lower rod, ensuring a tight connection and airtightness. By setting anti-slip protrusions on the outer sides of the valve cap, the upper rod, and the lower rod, it is easy to separate the valve cap or the upper rod individually, facilitating disassembly and replacement.

[0018] 3. By setting the pull strap to a metal strip or wire with a rubber coating, strength can be guaranteed. At the same time, a retaining ring is set at the lower end of the pull strap and the retaining ring is fixed to the lower end of the rubber head, making it easy to pull out the rubber head for easy replacement.

[0019] 4. By providing grooves on the sides of the upper and lower rods corresponding to the pull strap, the pull strap can be inserted into the grooves to fix the upper and lower rods, preventing the upper rod from rotating when the valve cap is turned, thus ensuring the airtightness of the upper and lower rods. By providing a protrusion on the upper outer side of the pull strap that extends out of the groove, it is easy to remove the pull strap through the protrusion, making it convenient to use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the tubeless valve structure in a preferred embodiment of this application.

[0021] Figure 2 This is an exploded view of the tubeless valve in a preferred embodiment of this application.

[0022] Explanation of reference numerals in the attached diagram: 1. Upper rod; 2. Lower rod; 3. Valve core; 4. Rubber head; 401. Pull strap; 402. Retaining ring; 5. Valve cap; 6. Anti-slip protrusion; 7. Groove. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings.

[0024] This application discloses a tubeless valve.

[0025] Reference Figure 1 and Figure 2 A tubeless valve includes an upper rod 1 and a lower rod 2 that are movably connected. The length of the upper rod 1 is greater than the length of the lower rod 2. A valve core 3 is movably disposed inside the upper rod 1. A rubber head 4 is disposed at the lower end of the lower rod 2. The rubber head 4 is provided with an annular fixing groove and is engaged with the rim through the annular fixing groove. A pull strap 401 is provided on the side of the rubber head 4. The shape of the pull strap 401 conforms to the outer shape of the rubber head 4 and is embedded in the rubber head 4. One end of the pull strap 401 extends out of the upper end of the rubber head 4, and the other end of the pull strap 401 is connected to the lower end of the rubber head 4. Specifically, in this embodiment, the upper end of the rubber head 4 is fixedly connected to the lower end of the lower rod 2. The pull strap 401 is a metal strip or metal wire with rubber coating on the outside. A fixing ring 402 is connected to the lower end of the pull strap 401 and the fixing ring 402 is fixed to the lower end of the rubber head 4. The fixing ring 402 and the lower rod 2 are both vulcanized and fixedly connected to the rubber head 4.

[0026] Reference Figure 2The upper rod 1 has a valve cap 5 movably mounted on its end. The valve cap 5 and the upper rod 1, as well as the upper rod 1 and the lower rod 2, are threadedly connected with the same thread direction. Specifically, in this embodiment, the valve cap 5 has a first thread on its inner side, the upper end of the upper rod 1 has a second thread that mates with the first thread on its outer side, the lower end of the upper rod 1 has a third thread on its inner side, and the upper end of the lower rod 2 has a fourth thread that mates with the third thread on its outer side. Both the first and third threads are right-hand threads. In this embodiment, a sealing ring or sealing ring is provided at the connection between the upper rod 1 and the lower rod 2. The valve cap 5, the upper rod 1, and the lower rod 2 all have anti-slip protrusions 6 on their outer sides, and the horizontal cross-sectional view of the anti-slip protrusions 6 is a regular hexagon. When the valve malfunctions, the upper rod 1 can be replaced first. If the valve returns to normal after replacing the upper rod 1, it proves that the valve core 3 or the upper rod 1 is damaged, but the lower rod 2 and the rubber head 4 are normal. There is no need to replace the lower rod 2 and the rubber head 4, making the repair simple and quick.

[0027] Reference Figure 1 and Figure 2 The pull strap 401 passes through the anti-slip protrusion 6 on the rubber head 4. The upper rod 1 and the lower rod 2 have corresponding grooves 7 on their sides. The pull strap 401 can be inserted into the groove 7 to fix the upper rod 1 and the lower rod 2, preventing the upper rod 1 and the lower rod 2 from being loosened when the valve cap 5 is turned. The upper end of the pull strap 401 has a protrusion on its outer side, and the end of the protrusion extends out of the groove 7. The pull strap 401 can be removed from the groove 7 through the protrusion. If the valve cap malfunctions and replacing the upper rod 1 does not solve the problem, it means that the lower rod 2 or the rubber head 4 is damaged. The rubber head 4 can be pulled out of the rim and replaced using the pull strap 401. This can be done without tools, which is convenient for maintenance.

[0028] The implementation principle is as follows: This application sets up an upper rod 1 and a lower rod 2 that are movably connected, and sets a valve core 3 and a rubber head 4 in the upper rod 1 and the lower rod 2 respectively. This allows the valve core 3, which is used for inflation control, and the rubber head 4, which is used for connection, to be separated. When the valve core 3 fails, the upper rod 1 can be replaced separately, and the replacement is convenient. By setting a pull strap 401 on the side of the rubber head 4 that fits against the outside of the rubber head 4, and with the lower end of the pull strap 401 connected to the lower end of the rubber head 4, when the rubber head 4 is damaged, the rubber head 4 can be pulled out from the installation position by the pull strap 401, making replacement convenient and maintenance easy.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tubeless valve, characterized in that: The device includes an upper rod (1) and a lower rod (2) that are movably connected. A valve core (3) is movably installed inside the upper rod (1). A rubber head (4) is provided at the lower end of the lower rod (2). The rubber head (4) is provided with an annular fixing groove and is fixed to the rim through the annular fixing groove. A pull strap (401) is provided on the side of the rubber head (4). The shape of the pull strap (401) fits the outer shape of the rubber head (4) and the pull strap (401) is embedded in the rubber head (4). One end of the pull strap (401) extends out of the upper end of the rubber head (4) and the other end of the pull strap (401) is connected to the lower end of the rubber head (4).

2. The tubeless valve according to claim 1, characterized in that: The upper rod (1) is movably provided with a valve cap (5). The valve cap (5) and the upper rod (1) are threadedly connected, and the upper rod (1) and the lower rod (2) are threadedly connected, with the threads having the same direction of rotation.

3. A tubeless valve according to claim 2, characterized in that: The valve cap (5) has a first thread on its inner side, the upper end of the upper rod (1) has a second thread that mates with the first thread on its outer side, the lower end of the upper rod (1) has a third thread on its inner side, and the upper end of the lower rod (2) has a fourth thread that mates with the third thread on its outer side. Both the first thread and the third thread are right-hand threads.

4. The tubeless valve according to claim 1, characterized in that: The upper end of the rubber head (4) is fixedly connected to the lower end of the lower rod (2). The pull strap (401) is a metal strip or metal wire with rubber coating on the outside. The lower end of the pull strap (401) is connected to a fixing ring (402) and the fixing ring (402) is fixed to the lower end of the rubber head (4).

5. A tubeless valve according to claim 2, characterized in that: The length of the upper rod (1) is greater than the length of the lower rod (2), and the valve cap (5), the upper rod (1) and the lower rod (2) are all provided with anti-slip protrusions (6) on their outer sides.

6. A tubeless valve according to claim 5, characterized in that: The horizontal cross-sectional view of the anti-slip protrusion (6) is a regular hexagon.

7. A tubeless valve according to claim 5, characterized in that: The pull strap (401) passes through the anti-slip protrusion (6) on the rubber head (4), and the upper rod (1) and the lower rod (2) are provided with corresponding grooves (7) on their sides, and the pull strap (401) can be inserted into the groove (7).

8. A tubeless valve according to claim 7, characterized in that: The upper end of the pull strap (401) is provided with a protrusion on the outer side, and the end of the protrusion extends out of the groove (7).

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