CN212616549U - Pressure adjustable valve inside - Google Patents
Pressure adjustable valve inside Download PDFInfo
- Publication number
- CN212616549U CN212616549U CN202021340535.0U CN202021340535U CN212616549U CN 212616549 U CN212616549 U CN 212616549U CN 202021340535 U CN202021340535 U CN 202021340535U CN 212616549 U CN212616549 U CN 212616549U
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- core
- pressure
- gas pocket
- seat
- adjustable valve
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- 238000007789 sealing Methods 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 2
- 238000005034 decoration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses a but pressure regulating valve inside, including the position sleeve, be provided with the core in the position sleeve, the core center is equipped with first gas pocket, wear to be equipped with the core bar in the first gas pocket, be equipped with reset spring between core bar and the core, be provided with the end cap that is used for the first gas pocket of shutoff on the core bar, core top screw-thread fit has the regulation seat, be provided with reset spring between regulation seat and the core bar tip, be provided with the second gas pocket on the regulation seat, the core bottom is provided with the third gas pocket, it is provided with the activity core to slide in the core, be provided with the pressure release spring between activity core and the regulation seat, the pressure release spring promotes the. The pressure-adjustable valve core can change the elasticity of the pressure relief spring by adjusting the position of the adjusting seat in the core body, thereby changing the pressure of the movable core which can be pushed, changing the pressure of automatic pressure relief, being suitable for various tires with different pressure capacities to use and preventing tire burst.
Description
Technical Field
The utility model belongs to the technical field of the valve inside, specifically a but pressure regulating valve inside.
Background
The valve inside is a one-way valve installed on a tire and used for preventing air leakage, the existing valve inside generally comprises a positioning sleeve, a core body is arranged in the positioning sleeve, an air hole is formed in the center of the core body, a core rod penetrates through the air hole, a return spring is arranged between the core rod and the core body, and under the elastic action of the return spring, the end part of the core rod plugs up the air hole. Such a valve core can only be used to prevent the leakage of air from the tire, but cannot be vented if the tire pressure is too high, resulting in a burst of the tire, particularly in the summer when such a burst occurs.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art, provide a pressure-adjustable valve inside, this kind of pressure-adjustable valve inside can be when the tire pressure is too high automatic pressure release to the pressure of adjustable automatic pressure release is suitable for the tire use of various different compressive capacities, prevents to blow out.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve: the utility model provides a pressure-adjustable valve inside, includes the position sleeve, be provided with the core in the position sleeve, the core center is equipped with first gas pocket, wears to be equipped with the core bar in the first gas pocket, is equipped with reset spring between core bar and the core, is provided with on the core bar and is used for the shutoff the end cap of first gas pocket, core top screw-thread fit has the seat of regulation, adjust the seat with be provided with between the core bar tip reset spring, be provided with the second gas pocket on the regulation seat, the core bottom is provided with the third gas pocket, it is provided with movable core to slide in the core, movable core with adjust and be provided with the pressure release spring between the seat, the pressure release spring promotes movable core will the shutoff of third gas. The pressure-adjustable valve core can change the elasticity of the pressure relief spring by adjusting the position of the adjusting seat in the core body, thereby changing the pressure of the movable core which can be pushed, changing the pressure of automatic pressure relief, being suitable for various tires with different pressure capacities to use and preventing tire burst.
In the above technical scheme, preferably, the plug is in threaded fit with the core rod, a first sealing ring is clamped between the plug and the core rod, and the first sealing ring is opposite to the first air hole. The structure is adopted to facilitate the assembly of the plug and the core rod, and the sealing performance of the plug for plugging the first air hole is improved through the first sealing ring.
In the above technical scheme, preferably, the locating sleeve is in threaded fit with the core body, and a second sealing ring is clamped between the locating sleeve and the core body. The structure is adopted to improve the sealing performance between the positioning sleeve and the core body.
In the above technical solution, preferably, an indication rod is arranged on the movable core, and the indication rod passes through the adjusting seat through the second air hole. Adopt this structure can judge the pressure of automatic pressure release through the length that the indicator lever stretches out the second gas pocket, and the indicator lever stretches out the second gas pocket longer then pressure release pressure is higher, and accessible pulling indicator lever initiative pressure release.
Compared with the prior art, the utility model, following beneficial effect has: the pressure-adjustable valve core can change the elasticity of the pressure relief spring by adjusting the position of the adjusting seat in the core body, thereby changing the pressure of the movable core which can be pushed, changing the pressure of automatic pressure relief, being suitable for various tires with different pressure capacities to use and preventing tire burst.
Drawings
Fig. 1 is a schematic sectional structure diagram of an embodiment of the present invention.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings: referring to fig. 1, a pressure-adjustable valve core, including the position sleeve 1, be equipped with core 2 through screw-thread fit in the position sleeve 1, core 2 center is equipped with first air hole 21, wear to be equipped with core bar 3 in the first air hole 21, core bar 3 top is provided with the locating cap, be equipped with reset spring 4 between locating cap and the core 2, be provided with end cap 31 that is used for the first air hole 21 of shutoff on the core bar 3, for the equipment of convenient end cap 31 and core bar 3, and improve end cap 31 and first air hole 21 complex leakproofness, in this embodiment, end cap 31 and 3 screw-thread fit of core bar, press from both sides between end cap 31 and the core bar 3 and be equipped with first sealing washer 32, first sealing washer 32 is just to first air hole 21.
2 top screw-thread fit of core has the regulation seat 22, and reset spring 4's one end supports and leans on promptly on adjusting seat 22, adjust and be provided with second gas pocket 23 on the seat 22, core 2 bottom is provided with third gas pocket 24, and it is provided with movable core 5 to slide in the core 2, is provided with pressure release spring 6 between movable core 5 and the regulation seat 22, and pressure release spring 6 promotes movable core 5 and blocks third gas pocket 24. The elasticity of the pressure relief spring 6 can be changed by adjusting the position of the adjusting seat 22 in the core body 2, so that the pressure of the movable core 5 which can be pushed is changed, the pressure of automatic pressure relief is changed, and the tire pressure relief device is suitable for various tires with different pressure capacities and prevents tire burst.
In this embodiment, in order to improve the sealing property of the gap between the positioning sleeve 1 and the core body 2, the positioning sleeve 1 and the core body 2 are in threaded fit, and a second seal ring 25 is interposed between the positioning sleeve 1 and the core body 2.
In order to judge and indicate the pressure of the automatic pressure relief, in the present embodiment, the movable core 5 is provided with an indication rod 51, and the indication rod 51 passes through the adjusting seat 22 from the second air hole 23. The longer the indicating rod 51 protrudes out of the second air hole 23, the higher the pressure relief pressure is, and the pressure can be actively relieved by pulling the indicating rod 51.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a pressure-adjustable valve core, includes position sleeve (1), be provided with core (2) in position sleeve (1), core (2) center is equipped with first gas pocket (21), wears to be equipped with core bar (3) in first gas pocket (21), is equipped with reset spring (4) between core bar (3) and core (2), is provided with on core bar (3) to be used for the shutoff end cap (31) of first gas pocket (21), its characterized in that: core (2) top screw-thread fit has regulation seat (22), adjust seat (22) with be provided with between core bar (3) the tip reset spring (4), be provided with second gas pocket (23) on adjusting seat (22), core (2) bottom is provided with third gas pocket (24), it is provided with movable core (5) to slide in core (2), movable core (5) with it is provided with pressure release spring (6) to adjust between seat (22), pressure release spring (6) promote movable core (5) will third gas pocket (24) shutoff.
2. The pressure adjustable valve core according to claim 1, wherein: the plug (31) is in threaded fit with the core rod (3), a first sealing ring (32) is clamped between the plug (31) and the core rod (3), and the first sealing ring (32) is opposite to the first air hole (21).
3. The pressure adjustable valve core according to claim 1, wherein: the locating sleeve (1) is in threaded fit with the core body (2), and a second sealing ring (25) is clamped between the locating sleeve (1) and the core body (2).
4. The pressure adjustable valve core according to claim 1, wherein: an indicating rod (51) is arranged on the movable core (5), and the indicating rod (51) penetrates through the adjusting seat (22) from the second air hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021340535.0U CN212616549U (en) | 2020-07-09 | 2020-07-09 | Pressure adjustable valve inside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021340535.0U CN212616549U (en) | 2020-07-09 | 2020-07-09 | Pressure adjustable valve inside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212616549U true CN212616549U (en) | 2021-02-26 |
Family
ID=74744605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021340535.0U Active CN212616549U (en) | 2020-07-09 | 2020-07-09 | Pressure adjustable valve inside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212616549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115539690A (en) * | 2022-10-24 | 2022-12-30 | 诸暨市志冠汽配有限公司 | Valve core with tire pressure indication and assembly method thereof |
-
2020
- 2020-07-09 CN CN202021340535.0U patent/CN212616549U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115539690A (en) * | 2022-10-24 | 2022-12-30 | 诸暨市志冠汽配有限公司 | Valve core with tire pressure indication and assembly method thereof |
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