Inflating valve convenient to replace

Abstract

The inflating valve convenient to replace comprises a valve rod and a valve core arranged in the valve rod, the two ends of the valve rod are movably connected with an inflating valve cap and a mounting head respectively, the mounting head is made of an elastic material, an annular fixing groove is formed in the outer side of the mounting head, and the mounting head can be clamped on a rim through the annular fixing groove; a locking part is arranged at one end of the valve rod, the locking part is of an umbrella-shaped structure, the locking part can penetrate through the mounting head and is connected with the end of the mounting head, and the outer side size of the locking part is larger than the inner side size of the end of the mounting head. The mounting head is arranged, the conical head is arranged at the front end of the mounting head, the annular fixing groove is formed in the mounting head, the locking part is arranged on the valve rod, the locking part can penetrate through the mounting head to be connected with the end of the mounting head, and during mounting, the mounting head firstly penetrates into the rim to be fixed; and finally, the locking part at the end part of the valve rod penetrates through the mounting head to realize the mounting of the inflating valve without penetrating the inflating valve into the rim, so that the mounting and the replacement are convenient.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of valve stems, in particular to a valve stem convenient to replace. BACKGROUND

[0002] The valve stem is a kind of independent valve body device, which allows gas to enter the tire or inner tube when opened, and then automatically closes and seals the gas to protect the gas pressure in the tire, so as to prevent the gas from escaping from the tire or inner tube. Most of the valve stems on the market are straight cylindrical, and some valve stems have a bend. The end of the valve stem is provided with a sealing rubber ring or a sealing mounting head.

[0003] At present, during the installation and replacement of the valve stem, the tire is usually not completely removed, only the outer tire is pried open, and the valve stem is inserted into the valve hole on the rim from the side of the outer tire, and then the valve stem is pulled out to the rubber sealing pad at the end of the valve stem to be clamped in the valve hole. However, due to the length of the valve stem and the tightness of the outer tire, it is difficult to pull out the valve stem from the valve hole of the rim at one time during replacement, especially the valve stem with a bend, which needs to be operated many times and is time-consuming and laborious. Therefore, the application provides a valve stem convenient to replace. CONTENT OF THE UTILITY MODEL

[0004] The application provides a valve stem convenient to replace, which is convenient and quick to install and replace and can guarantee the sealing effect.

[0005] The valve stem convenient to replace provided by the application adopts the following technical scheme:

[0006] The valve stem convenient to replace comprises a valve stem and a valve core arranged in the valve stem, two ends of the valve stem are movably connected with a valve stem cap and a mounting head respectively, the mounting head is made of elastic material and the front end of the mounting head is a conical head, an annular fixing groove is arranged on the outer side of the mounting head and the mounting head can be clamped on the rim through the annular fixing groove, one end of the valve stem is provided with a locking part, the locking part is in an umbrella-shaped structure and can pass through the mounting head and be connected with the end part of the mounting head, and the outer side dimension of the locking part is greater than the inner side dimension of the end part of the mounting head.

[0007] Preferably, the mounting head is a hollow sleeve made of elastic rubber material, and the annular fixing groove is arranged on the outer side of the front part of the mounting head, and the inner diameter of the front part of the mounting head is greater than that of the rear part of the mounting head.

[0008] Preferably, the rear part of the mounting head is provided with a guide hole gradually reduced inward, and the inner diameter of the largest part of the guide hole is not less than the outer diameter of the front end of the locking part.

[0009] Preferably, the locking part includes an annular support part, an annular snap-fit ​​part is provided on the inner side of the support part and is connected to the valve stem through the snap-fit ​​part, and a sealing part is connected to one end of the support part. The sealing part is an annular part that is inclined outward, and the support part, snap-fit ​​part and sealing part are integrally formed.

[0010] Preferably, the outer diameter of the sealing portion is larger than the inner diameter of the front portion of the mounting head.

[0011] Preferably, an adhesive layer is provided between the locking part and the valve stem.

[0012] Preferably, the valve stem is an "L"-shaped bend, with a step on the shorter section of the valve stem that can connect to the rear end of the mounting head via the step, and the longer section of the valve stem connected to the valve cap.

[0013] Preferably, the valve cap is magnetically connected to the valve stem, and both the valve cap and the valve stem have an adsorption magnetic ring embedded on their inner sides. The valve cap has a sealing ring at its center, and the size of the sealing ring corresponds to the size of the valve stem end.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. This application provides an installation head with a tapered front end and an annular fixing groove. A locking part is provided on the valve stem, which can pass through the installation head and connect with the end of the installation head. During installation, the installation head is first inserted into the wheel rim for fixation, and finally the locking part at the end of the valve stem passes through the installation head to install the valve stem. This eliminates the need to insert the valve stem into the wheel rim, making installation and replacement convenient.

[0016] 2. By setting the mounting head as a hollow sleeve, it is easy to insert the mounting head into the wheel rim for fixing. By setting the annular fixing groove at the front of the mounting head, and the inner diameter of the front is larger than that of the rear, and by setting the guide hole that narrows inward at the rear of the mounting head, it is beneficial to insert and move the locking part, thus ensuring the installation effect of the valve stem.

[0017] 3. By setting the locking part as a support part, a snap-fit ​​part, and a sealing part, the support part can improve the overall strength and ensure that the valve stem can be stably snapped in the mounting head. The snap-fit ​​part can snap with the end of the valve stem, increasing the connection strength. The sealing part is an inclined ring, which can ensure the snap-fit ​​effect. Finally, an adhesive layer is set between the locking part and the valve stem to ensure the valve stem installation effect.

[0018] 4. By setting the valve stem as an "L" shaped tube, it is easy to insert the valve stem into the mounting head. The step set on the valve stem can be used with the locking part to fix the valve stem, ensuring the installation effect.

[0019] 5. By setting magnetic adsorption rings on the valve cap and valve stem, it is easy to connect the valve cap. The valve cap is equipped with a sealing ring inside that corresponds to the size of the valve stem end, which can increase the sealing performance of the valve cap and improve the service life of the valve. Attached Figure Description

[0020] Figure 1 This is a perspective view of a valve stem that is easy to replace according to a preferred embodiment of this application.

[0021] Figure 2 This is an exploded view of a valve stem that is easy to replace in a preferred embodiment of this application.

[0022] Figure 3 This is an exploded view from another angle of the valve stem that is easily replaceable in the preferred embodiment of this application.

[0023] Figure 4 This is a cross-sectional view of a valve stem that is easy to replace in a preferred embodiment of this application.

[0024] Figure 5 This is a cross-sectional view of the mounting head in a preferred embodiment of this application.

[0025] Figure 6 This is a cross-sectional view of the locking part in a preferred embodiment of this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Valve stem; 101. Locking part; 101a. Support part; 101b. Snap-fit ​​part; 101c. Sealing part; 102. Step; 2. Valve core; 3. Valve cap; 4. Mounting head; 401. Annular fixing groove; 402. Guide hole. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the accompanying drawings.

[0028] This application discloses a valve stem that is easy to replace.

[0029] Reference Figures 1 to 5 A replaceable valve stem includes a valve stem 1 and a valve core 2 disposed within the valve stem 1. A valve stem cap 3 and a mounting head 4 are movably connected to both ends of the valve stem 1, respectively. The mounting head 4 is made of an elastic material and has a tapered front end. Specifically, the mounting head 4 is a hollow sleeve made of elastic rubber material. An annular fixing groove 401 is provided on the outer side of the mounting head 4, and it can be locked onto the rim through the annular fixing groove 401. The annular fixing groove 401 is located on the outer side of the front part of the mounting head 4. The inner diameter of the front part of the mounting head 4 is larger than the inner diameter of the rear part of the mounting head 4. A guide hole 402 that gradually narrows inward is provided at the rear part of the mounting head 4. The inner diameter of the guide hole 402 at its maximum point is not less than the outer diameter of the front end of the locking part 101.

[0030] ReferenceFigures 1 to 6 One end of the valve stem 1 is provided with a locking part 101. An adhesive layer is provided between the locking part 101 and the valve stem 1. The locking part 101 has an umbrella-shaped structure and can pass through the mounting head 4 and connect with the end of the mounting head 4. The outer dimension of the locking part 101 is larger than the inner dimension of the end of the mounting head 4. The locking part 101 includes an annular support part 101a. An annular snap-fit ​​part 101b is provided on the inner side of the support part 101a and is connected to the valve stem 1 through the snap-fit ​​part 101b. One end of the support part 101a is connected to a sealing part 101c. The sealing part 101c is an annular part that is inclined outward. The support part 101a, the snap-fit ​​part 101b and the sealing part 101c are integrally formed. The outer diameter of the sealing part 101c is larger than the inner diameter of the front part of the mounting head 4.

[0031] Reference Figure 4 The valve stem 1 is an "L" shaped bend. The shorter section of the valve stem 1 is provided with a step 102 and can be connected to the rear end of the mounting head 4 through the step 102. The longer section of the valve stem 1 is connected to the valve cap 3. The valve cap 3 is magnetically connected to the valve stem 1. Both the valve cap 3 and the valve stem 1 are embedded with magnetic rings. The valve cap 3 has a sealing ring in the center, and the size of the sealing ring corresponds to the size of the end of the valve stem 1.

[0032] The implementation principle is as follows: This application sets an installation head 4, and sets the front end of the installation head 4 as a conical head and sets an annular fixing groove 401 on the installation head 4. A locking part 101 is set on the valve stem 1 and the locking part 101 can pass through the installation head 4 and connect with the end of the installation head 4. During installation, the installation head 4 is first inserted into the wheel rim for fixing, and then the locking part 101 at the end of the valve stem 1 passes through the installation head 4 to fix the valve stem 1, thereby realizing the installation of the valve stem without having to insert the valve stem into the wheel rim, making installation and replacement convenient.

[0033] 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 valve for easy replacement, characterized in that: The valve stem (1) and the valve core (2) are arranged in the valve stem (1), the two ends of the valve stem (1) are movably connected with the valve cap (3) and the mounting head (4) respectively, the mounting head (4) is made of elastic material, the front end of the mounting head (4) is a tapered head, the outer side of the mounting head (4) is provided with an annular fixing groove (401) and can be clamped on the rim through the annular fixing groove (401), one end of the valve stem (1) is provided with a locking part (101), the locking part (101) is an umbrella-shaped structure, the locking part (101) can pass through the mounting head (4) and is connected with the end of the mounting head (4), the outer side dimension of the locking part (101) is greater than the inner side dimension of the end of the mounting head (4).

2. A convenience change valve according to claim 1, characterized in that: The mounting head (4) is a hollow sleeve made of elastic rubber material, the annular fixing groove (401) is located on the outer side of the front part of the mounting head (4), and the inner diameter of the front part of the mounting head (4) is greater than the inner diameter of the rear part of the mounting head (4).

3. A convenience change valve according to claim 2, wherein: The rear part of the mounting head (4) is provided with a guide hole (402) which gradually reduces inward, and the inner diameter of the largest part of the guide hole (402) is not less than the outer diameter of the front end of the locking part (101).

4. A convenience change valve according to claim 2, wherein: The locking part (101) includes an annular support part (101a), the inner side of the support part (101a) is provided with an annular clamping part (101b) and is connected with the valve stem (1) through the clamping part (101b), one end of the support part (101a) is connected with a sealing part (101c), the sealing part (101c) is an annular part arranged obliquely outward, and the support part (101a), the clamping part (101b) and the sealing part (101c) are integrally formed.

5. A convenience change valve according to claim 4, wherein: The outer diameter of the sealing part (101c) is greater than the inner diameter of the front part of the mounting head (4).

6. A convenience change valve stem according to claim 1 wherein: An adhesive glue layer is arranged between the locking part (101) and the valve stem (1).

7. A convenience change valve stem according to claim 2 wherein: The valve stem (1) is an "L"-shaped elbow pipe, a step (102) is arranged on the shorter section of the valve stem (1) and can be connected with the rear end of the mounting head (4) through the step (102), and the longer section of the valve stem (1) is connected with the valve cap (3).

8. A convenience change valve stem in accordance with claim 1 wherein: The valve cap (3) and the valve stem (1) are magnetically connected, and the inner sides of the valve cap (3) and the valve stem (1) are embedded with adsorbing magnetic rings, and the center of the valve cap (3) is provided with a sealing rubber ring, and the size of the sealing rubber ring corresponds to the size of the end of the valve stem (1).

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