CN215672943U - Two-way regulating pressure-limiting valve for automobile brake oil-way - Google Patents
Two-way regulating pressure-limiting valve for automobile brake oil-way Download PDFInfo
- Publication number
- CN215672943U CN215672943U CN202122084726.6U CN202122084726U CN215672943U CN 215672943 U CN215672943 U CN 215672943U CN 202122084726 U CN202122084726 U CN 202122084726U CN 215672943 U CN215672943 U CN 215672943U
- Authority
- CN
- China
- Prior art keywords
- oil
- way
- valve
- pressure
- oil return
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a bidirectional-adjustment pressure-limiting valve for an automobile brake oil way, which comprises a valve body, a valve core and an oil return mechanism, wherein the valve body is a horizontal short round pipe, an oil way is arranged in the direction parallel to a central shaft, a gourd-shaped oil cavity with a first oil cavity and a second oil cavity is formed in the middle section of the oil way, two ends of the oil way are respectively provided with a first valve port and a second valve port, a ball valve is fixedly arranged on the valve core, and the ball valve is attached and sealed with the inner wall of the waist part of the gourd-shaped oil cavity when in a balanced position; the oil return mechanism comprises a first oil return assembly communicated with the first oil cavity and a second oil return assembly communicated with the second oil cavity. The utility model realizes the hydraulic balance problem among all parallel branches through a simple and reliable mechanical structure, and releases pressure in time when the oil pressure rises at the moment when the oil pressure in the oil circuit changes suddenly to avoid the damage to the oil circuit which is difficult to repair, and the cost is low, thus being applicable to various extreme conditions and ensuring the uniform distribution and the overvoltage protection of the brake braking force.
Description
Technical Field
The utility model relates to the technical field of automobile oil way valves, in particular to an automobile brake oil way bidirectional adjusting pressure limiting valve.
Background
With the rapid development of economic level and manufacturing technology, automobiles become an indispensable part of people's daily life, and as a tool for replacing walking, the research on automobiles has never been stopped. The brake is used as a very important brake system on an automobile and plays an important role in the driving safety, the conventional brake system generally adopts a hydraulic oil circuit control system so as to accurately control the hydraulic balance among all branches, and the hydraulic oil circuit control system has the advantages that the feedback is timely, the noise is low, the pressure distribution is uniform, in order to achieve the balance between the oil pressure distributed to all branches by a main oil circuit, a two-way regulating valve is arranged among all branches so as to regulate the hydraulic balance among all branches, the conventional two-way valve generally adopts an electromagnetic valve which can accurately realize the hydraulic balance problem among all branches, but as the electromagnetic valve belongs to a precise instrument, the electromagnetic valve is easy to damage under certain extreme working conditions, thereby causing abnormal opening and closing, finally causing the hydraulic pressure of all branches to generate subversive unbalance, causing brake failure or unilateral generation of uneven brake force received by all brakes, even the vehicle overturn occurs, great influence is generated on the driving safety, and meanwhile, the sudden change of the oil pressure in the emergency braking oil path during emergency braking easily causes the over-large oil pressure in the brake oil path at the moment to cause oil leakage of the oil path, damage is caused to a brake system, and even the brake failure occurs.
Therefore, in order to solve the above problems, a two-way regulating pressure-limiting valve for an oil circuit of an automobile brake is needed, which can realize the hydraulic balance among all parallel branches by means of a simple and reliable mechanical structure, and can timely release pressure when the oil pressure in the oil circuit is suddenly changed and the oil pressure is instantly increased to avoid the damage to the oil circuit, which is difficult to repair, and has low cost, so that the two-way regulating pressure-limiting valve can be suitable for various extreme conditions, and the uniform distribution and the overvoltage protection of brake force can be ensured.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention aims to overcome the defects in the prior art, and provide a bidirectional regulating pressure-limiting valve for an oil path of an automobile brake, which can achieve the hydraulic balance among all parallel branches by means of a simple and reliable mechanical structure, and can relieve pressure in time when the oil pressure in the oil path rises at the moment of sudden change of the oil pressure to avoid the damage to the oil path, which is difficult to repair, and has low cost, so that the valve can be applied to various extreme conditions, and can ensure the uniform distribution of brake force and the overpressure protection.
The utility model relates to a two-way regulating pressure-limiting valve of an automobile brake oil way, which comprises a valve body, a valve core and an oil return mechanism, wherein the valve body is a high-temperature-resistant high-strength valve body made of an integrally formed alloy material, the valve body is a horizontal short circular tube, an oil way is arranged in the direction parallel to a central axis, the middle section of the oil way is provided with a gourd-shaped oil cavity with a first oil cavity and a second oil cavity, two ends of the oil way are respectively provided with a first valve port and a second valve port, the first valve port is communicated with one oil distribution branch, the second valve port is communicated with the other oil distribution branch, a ball valve is fixedly arranged on the valve core, the ball valve is in a fit seal with the inner wall of the waist part of the gourd-shaped oil cavity when in a balance position, namely, the middle position of the oil cavity is a balance position, when the ball valve is positioned in the balance position, the two oil distribution branches are mutually separated without oil quantity exchange, and when the ball valve leaves the balance position, a gap exists between the ball valve and the inner wall of the first oil cavity/the second oil cavity is an oil quantity exchange channel, at the moment, the end with larger oil pressure can push the brake oil to the end with smaller oil pressure so as to balance the oil pressure at the two ends of the bidirectional regulating valve; if the oil pressure difference is too large, the ball valve can be directly pushed down to the end face of the first valve port or the end face of the second valve port and blocks the end face of the valve port to block an oil exchange passage, at the moment, a steel ball of the oil return mechanism is pushed by oil pressure to open an oil return port, the oil with too high pressure is decompressed through the oil return mechanism to perform overpressure protection on the whole oil pipeline, and the oil return mechanism comprises a first oil return assembly communicated with the first oil cavity and a second oil return assembly communicated with the second oil cavity.
Further, the first oil return component comprises a first steel ball, a first pressure adjusting spring, a first pressure adjusting nut and a first oil return port communicated with the first oil cavity, the first steel ball is clamped on the large hole side of the stepped hole of the first oil return port, and the first pressure adjusting spring is fixedly connected with the first pressure adjusting nut and provides pretightening force for the first steel ball to be clamped on the large hole side of the stepped hole of the first oil return port.
Further, the first pressure adjusting nut is pressed against the first pressure adjusting spring and is in threaded connection with the first oil return port.
Further, the second oil return assembly comprises a second steel ball, a second pressure adjusting spring, a second pressure adjusting nut and a second oil return opening communicated with the second oil cavity, the second steel ball is clamped on the large hole side of the step hole of the second oil return opening, and the second pressure adjusting spring is fixedly connected with the second pressure adjusting nut and provides pretightening force for the second steel ball to clamp on the large hole side of the step hole of the second oil return opening.
Further, the second pressure adjusting nut is pressed against the second pressure adjusting spring, and the second pressure adjusting nut is in threaded connection with the second oil return opening.
Furthermore, the mandrel penetrates through the whole oil way, a plurality of annular support frames used for supporting the mandrel are arranged in the first valve port section and the second valve port section, the annular support frames can fully guarantee that the mandrel is located on the axis of the whole valve body, deflection does not occur, and the adjusting accuracy of the two-way adjusting pressure limiting valve is guaranteed.
Furthermore, an oil through hole is formed in the end face of the annular support frame, so that smoothness of an oil path between the first valve port and the first oil cavity and smoothness of an oil path between the second valve port and the second oil cavity are guaranteed.
Further, a first filter screen is arranged in the first valve port section, and the mandrel is in sliding fit with the first filter screen; a second filter screen is arranged in the second valve port section, the mandrel is in sliding fit with the second filter screen, and the filter screen can effectively prevent impurities in the brake oil from entering the oil cavity, so that the cleanliness of the ball valve and the cleanliness of the oil cavity are guaranteed.
Further, the waist of calabash type oil pocket is provided with sealed the pad, becomes sealed through extrusion deformation when contacting with the ball valve surface, and sealed pad adopts high temperature resistant rubber pad, and high temperature resistant rubber pad has good weatherability, and the working property when can guarantee well that the governing valve is in under the extreme condition is not influenced.
The utility model has the beneficial effects that: the utility model discloses a bidirectional regulating pressure limiting valve of an automobile brake oil way, which solves the problem of hydraulic balance among all parallel branches through a simple and reliable mechanical structure, and relieves pressure in time when the oil pressure rises at the moment when the oil pressure in the oil way changes suddenly to avoid the damage to the oil way which is difficult to repair, and has low cost, thereby ensuring the uniform distribution of brake force and overvoltage protection under various extreme conditions.
Drawings
The utility model is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the ball valve of the present invention in a balanced position;
fig. 2 is a schematic structural diagram of the ball valve of the present invention in an unbalanced position.
Detailed Description
Fig. 1 is a schematic structural view of the ball valve of the present invention when the ball valve is located at a balanced position, fig. 2 is a schematic structural view of the ball valve of the present invention when the ball valve is located at an unbalanced position, as shown in the figure, the automotive brake oil path bidirectional adjustment pressure limiting valve in this embodiment includes a valve body 1, a valve core 2 and an oil return mechanism, the valve body 1 is a high temperature resistant and high strength valve body 1 made of an integrally formed alloy material, the valve body 1 is a horizontal short circular tube and is provided with an oil path in a direction parallel to a central axis, a gourd-shaped oil chamber having a first oil chamber 3a and a second oil chamber 3b is formed in the middle section of the oil path, two ends of the oil path are respectively a first valve port 31 and a second valve port 32, the first valve port 31 is communicated with one oil distribution branch, the second valve port 32 is communicated with the other oil distribution branch, the valve core 2 is fixedly provided with the ball valve 2a, and the ball valve 2a is attached to and sealed with the inner wall of the gourd-shaped oil chamber when the ball valve 2a is located at the balanced position, namely, the middle position of the oil cavity is a balance position, when the ball valve 2a is positioned at the balance position, the two oil distribution branches are mutually separated and have no oil quantity exchange, when the ball valve 2a leaves the balance position, a gap exists between the ball valve 2a and the inner wall of the first oil cavity 3 a/the inner wall of the second oil cavity 3b, namely an oil quantity exchange channel, and at the moment, the end with larger oil pressure can push brake oil to the end with smaller oil pressure so as to balance the oil pressure at the two ends of the two-way regulating valve; if the oil pressure difference is too large, the ball valve 2a is directly pushed down to the end face of the first valve port 31 or the end face of the second valve port 32 and blocks the end face of the valve port to block an oil exchange passage, at the moment, a steel ball of the oil return mechanism is pushed by oil pressure to open an oil return port, the oil with too high pressure is released through the oil return mechanism to perform overpressure protection on the whole oil pipeline, and the oil return mechanism comprises a first oil return assembly communicated with the first oil cavity 3a and a second oil return assembly communicated with the second oil cavity 3 b.
In this embodiment, the first oil return assembly includes a first steel ball 4a, a first pressure adjusting spring 5a, a first pressure adjusting nut 6a, and a first oil return opening 7a communicated with the first oil chamber 3a, the first steel ball 4a is clamped on a large hole side of a stepped hole of the first oil return opening 7a, and the first pressure adjusting spring 5a is fixedly connected with the first pressure adjusting nut 6a and provides a pretightening force for the first steel ball 4a to be clamped on a large hole side of the stepped hole of the first oil return opening 7 a.
In this embodiment, the first pressure adjusting nut 6a is pressed against the first pressure adjusting spring 5a, and the first pressure adjusting nut 6a is in threaded connection with the first oil return port 7 a.
In this embodiment, the second oil return subassembly includes second steel ball 4b, second pressure adjusting spring 5b, second pressure adjusting nut 6b and with the second oil return opening b of second oil pocket 3b intercommunication, second steel ball 4b clamp is in the macropore side of the step hole of second oil return opening b, second pressure adjusting spring 5b and second pressure adjusting nut 6b fixed connection and for second steel ball 4b provide the pretightning force with the big pore side of the step hole of clamp at second oil return opening b.
In this embodiment, the second pressure adjusting nut 6b is pressed against the second pressure adjusting spring 5b, and the second pressure adjusting nut 6b is screwed with the second oil return port b.
In this embodiment, the valve element 2 penetrates through the whole oil path, and a plurality of annular support frames 8 for supporting the valve element 2 are arranged in the first valve port 31 section and the second valve port 32 section, and the annular support frames 8 can fully ensure that the valve element 2 is positioned on the axis of the whole valve body 1, so that deflection does not occur, and the adjustment accuracy of the two-way adjustment pressure limiting valve is ensured.
In this embodiment, an oil through hole is formed in an end surface of the annular support frame 8, so that smoothness of an oil path between the first valve port 31 and the first oil chamber 3a and smoothness of an oil path between the second valve port 32 and the second oil chamber 3b are ensured.
In this embodiment, a first filter screen 9a is further disposed in the first valve port 31, and the valve core 2 is in sliding fit with the first filter screen 9 a; a second filter screen 9b is arranged in the section of the second valve port 32, the valve core 2 is in sliding fit with the second filter screen 9b, and the filter screen is arranged to effectively prevent impurities in the brake oil from entering the oil cavity, so that the cleanliness of the ball valve 2a and the oil cavity is guaranteed.
In this embodiment, the waist of calabash type oil pocket is provided with sealed the pad, becomes sealed through extrusion deformation when contacting with ball valve 2a surface, and sealed pad adopts high temperature resistant rubber pad, and high temperature resistant rubber pad has good weatherability, and the working property when can guarantee well that the governing valve is in under the extreme condition is not influenced.
The utility model discloses a bidirectional regulating pressure limiting valve of an automobile brake oil way, which solves the problem of hydraulic balance among all parallel branches through a simple and reliable mechanical structure, and relieves pressure in time when the oil pressure rises at the moment when the oil pressure in the oil way changes suddenly to avoid the damage to the oil way which is difficult to repair, and has low cost, thereby ensuring the uniform distribution of brake force and overvoltage protection under various extreme conditions.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. The utility model provides a car brake oil circuit two-way regulation pressure limiting valve which characterized in that: the oil return valve comprises a valve body, a valve core and an oil return mechanism, wherein the valve body is a horizontal short round pipe, an oil way is arranged in the direction parallel to a central axis of the valve body, a gourd-shaped oil cavity with a first oil cavity and a second oil cavity is formed in the middle section of the oil way, a first valve port and a second valve port are respectively arranged at two ends of the oil way, a ball valve is fixedly arranged on the valve core, and the ball valve is attached and sealed with the inner wall of the waist part of the gourd-shaped oil cavity when in a balance position; the oil return mechanism comprises a first oil return assembly communicated with the first oil cavity and a second oil return assembly communicated with the second oil cavity.
2. The automobile brake oil way two-way adjusting pressure limiting valve according to claim 1, characterized in that: the first oil return component comprises a first steel ball, a first pressure adjusting spring, a first pressure adjusting nut and a first oil return port communicated with the first oil cavity, the first steel ball is clamped on the large hole side of the stepped hole of the first oil return port, and the first pressure adjusting spring is fixedly connected with the first pressure adjusting nut and provides pre-tightening force for the first steel ball to be clamped on the large hole side of the stepped hole of the first oil return port.
3. The automobile brake oil way two-way adjusting pressure limiting valve according to claim 2, characterized in that: the first pressure adjusting nut is pressed against the first pressure adjusting spring and is in threaded connection with the first oil return opening.
4. The automobile brake oil way two-way adjusting pressure limiting valve according to claim 3, characterized in that: the second oil return assembly comprises a second steel ball, a second pressure adjusting spring, a second pressure adjusting nut and a second oil return opening communicated with the second oil cavity, the second steel ball is clamped on the large hole side of the step hole of the second oil return opening, and the second pressure adjusting spring is fixedly connected with the second pressure adjusting nut and provides pretightening force for the second steel ball to clamp on the large hole side of the step hole of the second oil return opening.
5. The automobile brake oil way two-way adjusting pressure limiting valve according to claim 4, characterized in that: and the second pressure adjusting nut is pressed against the second pressure adjusting spring and is in threaded connection with the second oil return opening.
6. The automobile brake oil way two-way adjusting pressure limiting valve according to claim 1, characterized in that: the dabber runs through in whole oil circuit, and is provided with a plurality of annular support frames that are used for supporting the dabber in first valve port section and the second valve port section.
7. The automobile brake oil way two-way adjusting pressure limiting valve according to claim 6, characterized in that: the end face of the annular supporting frame is provided with an oil through hole.
8. The automobile brake oil way two-way adjusting pressure limiting valve according to claim 1, characterized in that: a first filter screen is further arranged in the first valve port section, and the mandrel is in sliding fit with the first filter screen; and a second filter screen is arranged in the second valve opening section, and the mandrel is in sliding fit with the second filter screen.
9. The automobile brake oil way two-way adjusting pressure limiting valve according to claim 1, characterized in that: the waist of the gourd-shaped oil cavity is provided with a sealing gasket which is extruded and deformed into a seal when contacting the surface of the ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122084726.6U CN215672943U (en) | 2021-08-31 | 2021-08-31 | Two-way regulating pressure-limiting valve for automobile brake oil-way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122084726.6U CN215672943U (en) | 2021-08-31 | 2021-08-31 | Two-way regulating pressure-limiting valve for automobile brake oil-way |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215672943U true CN215672943U (en) | 2022-01-28 |
Family
ID=79957976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122084726.6U Active CN215672943U (en) | 2021-08-31 | 2021-08-31 | Two-way regulating pressure-limiting valve for automobile brake oil-way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215672943U (en) |
-
2021
- 2021-08-31 CN CN202122084726.6U patent/CN215672943U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101649009B1 (en) | Trailer control valve for a compressed air braking system | |
| CN108331948B (en) | Pilot-operated type pipe explosion shutoff valve and control method | |
| CN215672943U (en) | Two-way regulating pressure-limiting valve for automobile brake oil-way | |
| CN113137570A (en) | Ultrahigh pressure vehicle-mounted hydrogen storage cylinder combination valve | |
| CN114321457B (en) | Reliable sealed pilot type safety valve main valve | |
| CN207728972U (en) | Overflow valve and the Braking System for Multiple Units for using the overflow valve | |
| CN201836435U (en) | Top entry type two-way eccentric metal hard sealing ball valve | |
| CN201712658U (en) | External adjusted constant-current overflow valve for steering pump | |
| CN210830637U (en) | Safety valve structure for piston type pressure reducer | |
| CN210687065U (en) | Bidirectional sealing eccentric half ball valve | |
| CN211715634U (en) | Double-circulation anti-snaking oil pressure shock absorber for rail transit vehicle | |
| CN111779867B (en) | Vibration suppression pressure reducing valve | |
| CN215566340U (en) | Safety pressure limiting valve for high-pressure common rail of diesel engine | |
| CN220792187U (en) | Safety valve used for wide temperature range and resistant to pollution | |
| CN219712447U (en) | Regulating valve integrating decompression and release functions | |
| CN110822145A (en) | Constant differential pressure compensating valve | |
| CN213744217U (en) | Compensating valve and hydraulic system | |
| CN204532688U (en) | Large discharge plug-in type ring cavity control type emergency distributing valve | |
| CN221220982U (en) | Pilot-operated unloading safety valve | |
| CN216618685U (en) | High-pressure reducing valve | |
| CN205292624U (en) | Car and engineering machine tool air braking system warning light switch | |
| CN219432491U (en) | Mechanical-closing limiting adjustable wedge gate valve | |
| CN216479136U (en) | Novel pressure reducing valve for high-pressure hydrogen | |
| CN214465507U (en) | Novel automatic centering structure composite gasket | |
| CN218992487U (en) | Hydraulic control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |