CN218954123U - Positive pinch roller limit valve - Google Patents
Positive pinch roller limit valve Download PDFInfo
- Publication number
- CN218954123U CN218954123U CN202223486749.0U CN202223486749U CN218954123U CN 218954123 U CN218954123 U CN 218954123U CN 202223486749 U CN202223486749 U CN 202223486749U CN 218954123 U CN218954123 U CN 218954123U
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- air
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- air chamber
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- piston piece
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- 238000000926 separation method Methods 0.000 claims abstract description 27
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of tire central inflation and deflation systems, in particular to a positive pressure wheel side valve, which comprises a valve shell connected with a hub, wherein one end of the valve shell is provided with an air inlet end, the other end of the valve shell is provided with an air outlet end, a first air chamber and a second air chamber are arranged in the valve shell, a separation ring is arranged between the first air chamber and the second air chamber, a separation ring is arranged between the second air chamber and the air outlet end, a piston piece is movably arranged in the first air chamber, an auxiliary piston piece which can move relative to the piston piece, a piston rod and a connecting piece for connecting the auxiliary piston piece and the piston rod are arranged in the piston piece, one end of the piston rod penetrating through the separation ring is matched with the separation ring to realize the opening and closing between the air outlet end and the second air chamber, the piston rod is sleeved with a one-way valve, and the auxiliary piston piece and the piston piece are staggered to form an air passage, and the utility model has the advantages that: and the inflation and deflation stability and the inflation and deflation efficiency of the wheel side valve are improved.
Description
Technical Field
The utility model relates to the field of tire central inflation and deflation systems, in particular to a positive pressure wheel side valve.
Background
In order to ensure that the vehicle can adapt to different road conditions, a tire central air release system is arranged in the vehicle to adjust and detect the air pressure of the tire so as to meet different requirements of different roads on the air pressure in the tire of the vehicle, wherein a wheel valve is an important part in the tire central air release system, and the existing wheel valve comprises a piston wheel valve and a diaphragm wheel valve and has the defects of unstable air charging and releasing and low adjusting speed.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the positive pressure wheel side valve aiming at the defects in the prior art, so that the inflation and deflation stability and efficiency of the wheel side valve are improved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a normal pressure wheel limit valve, includes the valve casing of being connected with wheel hub, the one end of valve casing is equipped with inlet end (air inlet nozzle), and the other end is equipped with the end of giving vent to anger, its characterized in that: the valve is characterized in that a first air chamber and a second air chamber are arranged in the valve housing, a separation ring is arranged between the first air chamber and the second air chamber, a separation ring is arranged between the second air chamber and the air outlet end, an air outlet is arranged on the inner wall of the second air chamber, a piston piece is movably arranged in the first air chamber, a first spring which is propped against the separation ring is sleeved on the piston piece, an auxiliary piston piece which can move relative to the piston piece, a piston rod and a connecting piece for connecting the auxiliary piston piece and the piston rod are arranged in the piston piece, one end of the piston rod, which penetrates through the separation ring, is matched with the separation ring to realize opening and closing between the air outlet end and the second air chamber, a one-way valve which allows air to flow from the air inlet end to the air outlet end is sleeved on the piston rod, a plurality of air inlets are arranged on the separation ring, the piston piece is propped against the end face of the separation ring under the action of high-pressure air, and the auxiliary piston piece and the piston piece are staggered to form an air passing channel.
The present utility model having the above-described features: the high-pressure gas enters the first gas chamber from the gas inlet end to push the piston member so that the piston rod is separated from the partition ring, the second gas chamber is communicated with the gas outlet end, the high-pressure gas enters the second gas chamber from the first gas chamber through the gas inlet hole, the second gas chamber enters the gas outlet end to inflate the tire, the piston member is propped against the partition ring along with the increase of the high-pressure gas, the auxiliary piston member is pushed to stagger with the piston member to form a gas passing channel, the high-pressure gas enters the partition ring from the one-way valve to inflate the tire, and the piston member and the auxiliary piston member are arranged in the valve housing so as to improve the gas inlet speed and stability, and the high-pressure gas filling valve is simple in structure and convenient to use.
The utility model is further provided with the following steps: the separation ring is provided with an installation cavity, a pressing block is movably arranged in the installation cavity, one end of the pressing block is located outside the installation cavity and faces the piston member, the other end of the pressing block is located in the installation cavity, and a second spring connected with the pressing block is arranged in the installation cavity.
The present utility model having the above-described features: the piston member pushes the pressing block under the pushing of high-pressure gas, the second spring is compressed until the piston member abuts against the separation ring, and the pressing block is arranged to buffer the piston member, so that hard contact between the piston member and the separation ring is prevented.
The utility model is further provided with the following steps: a third air chamber for installing one end of the piston rod, which is not matched with the auxiliary piston piece, is arranged in the valve housing, and an exhaust hole communicated with the outside is formed in the third air chamber.
The present utility model having the above-described features: the valve housing is internally provided with a third air chamber for the piston rod to move, when the third air chamber reciprocates, air can be generated, if the air is not discharged in time, the normal movement of the piston rod can be influenced, and the air remained in the third air chamber is discharged in time through the arrangement of the exhaust hole, so that the movement smoothness of the piston rod is kept.
The utility model is further provided with the following steps: the end part of the air outlet end is T-shaped, a control valve assembly is arranged in the air outlet end, the control valve assembly comprises a connecting nozzle connected with an inner air pipe of a tire and a valve body positioned right above the connecting nozzle, a blocking core for blocking the connecting nozzle is arranged in the valve body, a limiting step for limiting the moving distance of the valve body is arranged on the inner wall of the air outlet end, and a limiting ring propped against the limiting step is arranged on the outer peripheral surface of the valve body.
The present utility model having the above-described features: the gas enters from the connecting nozzle, the blocking core is fixedly connected with the valve body, the valve body is pushed by the gas until the limiting ring abuts against the limiting table, the valve assembly is controlled to be opened, and the air outlet end is communicated with the tire.
The utility model is further provided with the following steps: the one end of the partition ring facing the one-way valve is provided with an outwards turned sealing skirt edge, and one end of the piston part penetrating through the partition ring moves along with air pressure to be sleeved outside the sealing skirt edge.
The present utility model having the above-described features: through setting up sealed shirt rim, the one end of piston spare cup joints with sealed shirt rim, guarantees that high-pressure gas can only get into the block ring from the check valve, can not leak gas, improves the gas tightness.
The utility model is described in further detail below with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is a cross-sectional view of c-c in fig. 1.
Detailed Description
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
The positive pressure wheel edge valve shown in figures 1-2 comprises a valve casing 1 connected with a hub, wherein one end of the valve casing 1 is provided with an air inlet end, an air inlet nozzle 2 is arranged at the air inlet end, the other end is provided with an air outlet end 3, a first air chamber 11, a second air chamber 12 and a third air chamber 13 are arranged in the valve casing 1, the air outlet end 3 and the second air chamber 12 are connected through an air outlet channel 14, a separation ring 4 is arranged between the first air chamber 11 and the second air chamber 12, a separation ring 5 is arranged between the second air chamber 12 and the air outlet end 3, an air outlet 15 is arranged on the inner wall of the second air chamber 12, a piston member 6 is movably arranged in the first air chamber 11, a plurality of air inlet holes (not shown in the figure) are arranged on the separation ring 4, a first spring 30 propped against the separation ring 4 is sleeved on the piston member 6, an auxiliary piston member 7, a piston rod 8 and a connecting member 9 which can move relatively are arranged in the piston member 6, a third spring 40 is sleeved outside the connecting piece 9, one end of the third spring 40 is propped against a convex ring 62 arranged on the inner wall of the piston piece 6, the other end is propped against a bottom ring 91 arranged on the connecting piece 9, a sealing ring 20 is embedded in the piston piece 6, the sealing ring 20 is sleeved outside the auxiliary piston piece 7, one end of a piston rod 8 is connected with the connecting piece 9, the other end passes through a partition ring 5 and is positioned in a third air chamber 13, an exhaust hole 14 communicated with the outside is formed on the inner wall of the third air chamber 13, one end of the piston rod 8 positioned in the third air chamber 13 is provided with a sealing surface 61 matched with the partition ring 5 to realize the opening and closing of the air outlet end 3 and the second air chamber 12, an air passage 16 is formed between the partition ring 5 and the piston rod 8, a one-way valve 10 allowing air to flow from the air inlet end to the air outlet end is sleeved on the piston rod 8, the piston piece 6 is propped against the partition ring 4 under the action of high-pressure air, the end of the partition ring 5 facing the one-way valve 10 is provided with an outwards turned sealing skirt 101, one end of the piston member 6 penetrating through the partition ring 4 moves along with air pressure to be sleeved on the sealing skirt 101 to form a closed space, and the auxiliary piston member 7 and the piston member 6 are staggered to form an air passage.
The separation ring 4 is provided with an installation cavity 41, a pressing block 42 is movably arranged in the installation cavity 41, one end of the pressing block 42 is positioned outside the installation cavity 41 and faces the piston member 6, the other end of the pressing block 42 is positioned in the installation cavity 41, and a second spring 43 connected with the pressing block 42 is arranged in the installation cavity 41.
The end of the air outlet end 3 is T-shaped, a control valve component is arranged in the air outlet end, the control valve component comprises a connecting nozzle 31 connected with an inner air pipe of a tire and a valve body 32 positioned right above the connecting nozzle 31, a blocking core 33 for blocking the connecting nozzle is arranged in the valve body 32, a limiting step 34 for limiting the moving distance of the valve body 32 is arranged on the inner wall of the air outlet end 3, and a limiting ring 35 propped against the limiting step 34 is arranged on the outer peripheral surface of the valve body 32.
Working principle: firstly, inflating the tire towards the wheel side valve, flushing the control valve assembly, keeping the overair between the tire and the wheel side valve smooth, pushing the valve body by air to enable the blocking core to leave the connecting nozzle upwards until the limiting ring on the valve body abuts against the limiting table, at the moment, controlling the valve assembly to be in an open state, when inflating, enabling high-pressure air to enter the wheel side valve from the air inlet nozzle, firstly pushing the piston part, enabling the piston part to move backwards to abut against the pressing block, enabling the air to enter the first air chamber, enabling the air to enter the second air chamber from the air inlet hole of the separating ring, enabling the air to enter the air outlet end from the air channel, enabling the piston part to move backwards until abutting against the separating ring, enabling the auxiliary piston part to be pushed by the high-pressure air, enabling the air to be provided with a sealing ring matched with the auxiliary piston part, ensuring that in an initial state, namely, when the wheel side valve is closed, the air cannot enter the valve housing, enabling the auxiliary piston part to be staggered with the piston part, and enabling the air to form an overair passage between the auxiliary piston part and a sealing skirt on the separating ring, at the moment, enabling one end of the piston part close to the separating ring to be in a sealing skirt, enabling the air to flow to only from the overair passage to the air outlet end, and enabling the air to enter the air outlet end through the separating ring to the separating ring; when the wheel edge valve is closed, the air inlet nozzle is quickly deflated, the piston piece and the auxiliary piston piece return under the assistance of the spring, namely, the wheel edge valve is closed, if the air pressure in the tire is higher than the external air pressure, the tire needs to be deflated, a small amount of low-pressure air is conveyed from the air inlet nozzle, the piston piece moves to the pressing block, the air passage is opened, and the air in the tire is discharged from the air outlet hole.
Claims (5)
1. The utility model provides a normal pressure wheel limit valve, includes the valve casing of being connected with wheel hub, the one end of valve casing is the inlet end, and the other end is the end of giving vent to anger, its characterized in that: the valve is characterized in that a first air chamber and a second air chamber are arranged in the valve housing, a separation ring is arranged between the first air chamber and the second air chamber, a separation ring is arranged between the second air chamber and the air outlet end, an air outlet is arranged on the inner wall of the second air chamber, a piston piece is movably arranged in the first air chamber, a plurality of air inlets are arranged on the separation ring, a first spring which is propped against the separation ring is sleeved on the piston piece, an auxiliary piston piece which can move relative to the piston piece, a piston rod and a connecting piece which is connected with the auxiliary piston piece and the piston rod are arranged in the piston piece, the piston rod penetrates through one end of the separation ring to be matched with the separation ring to realize opening and closing between the air outlet end and the second air chamber, a one-way valve which allows air to flow from the air inlet end to the air outlet end is sleeved on the piston rod, the auxiliary piston piece is propped against the separation ring under the action of high-pressure air, and the auxiliary piston piece and the piston piece are staggered to form an air passing channel.
2. The positive pressure wheel side valve according to claim 1, wherein: the separation ring is provided with an installation cavity, a pressing block is movably arranged in the installation cavity, one end of the pressing block is located outside the installation cavity and faces the piston member, the other end of the pressing block is located in the installation cavity, and a second spring connected with the pressing block is arranged in the installation cavity.
3. The positive pressure wheel side valve according to claim 1, wherein: a third air chamber for installing one end of the piston rod, which is not matched with the auxiliary piston piece, is arranged in the valve housing, and an exhaust hole communicated with the outside is formed in the third air chamber.
4. The positive pressure wheel side valve according to claim 1, wherein: the end part of the air outlet end is T-shaped, a control valve assembly is arranged in the air outlet end, the control valve assembly comprises a connecting nozzle connected with an inner air pipe of a tire and a valve body positioned right above the connecting nozzle, a blocking core for blocking the connecting nozzle is arranged in the valve body, a limiting step for limiting the moving distance of the valve body is arranged on the inner wall of the air outlet end, and a limiting ring propped against the limiting step is arranged on the outer peripheral surface of the valve body.
5. The positive pressure wheel side valve according to claim 1, wherein: the one end of the partition ring facing the one-way valve is provided with an outwards turned sealing skirt edge, and one end of the piston part penetrating through the partition ring moves along with air pressure to be sleeved outside the sealing skirt edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223486749.0U CN218954123U (en) | 2022-12-26 | 2022-12-26 | Positive pinch roller limit valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223486749.0U CN218954123U (en) | 2022-12-26 | 2022-12-26 | Positive pinch roller limit valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218954123U true CN218954123U (en) | 2023-05-02 |
Family
ID=86109254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223486749.0U Active CN218954123U (en) | 2022-12-26 | 2022-12-26 | Positive pinch roller limit valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218954123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL447678A1 (en) * | 2024-02-01 | 2024-06-03 | Politechnika Warszawska | Valve controlling the flow of the working medium in a through system and the use of this valve |
-
2022
- 2022-12-26 CN CN202223486749.0U patent/CN218954123U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL447678A1 (en) * | 2024-02-01 | 2024-06-03 | Politechnika Warszawska | Valve controlling the flow of the working medium in a through system and the use of this valve |
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