CN219821406U - Linkage brake proportional valve - Google Patents
Linkage brake proportional valve Download PDFInfo
- Publication number
- CN219821406U CN219821406U CN202320863647.1U CN202320863647U CN219821406U CN 219821406 U CN219821406 U CN 219821406U CN 202320863647 U CN202320863647 U CN 202320863647U CN 219821406 U CN219821406 U CN 219821406U
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- valve body
- brake
- plunger
- brake oil
- oil outlet
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- 238000007789 sealing Methods 0.000 claims abstract description 29
- 239000010985 leather Substances 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 101150038956 cup-4 gene Proteins 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The utility model discloses a linkage brake proportional valve, which comprises a front valve body and a rear valve body, wherein the front valve body and the rear valve body are assembled in a sealing way; the front valve body is provided with a front brake oil inlet hole, a front brake oil outlet hole and a piston cavity, and the front brake oil outlet hole is communicated with the front brake oil inlet hole through the piston cavity; the rear valve body is provided with a rear brake oil inlet and a rear brake oil outlet, the rear brake oil outlet and the rear brake oil inlet are integrated into a through hole, and the piston cavity is communicated with the through hole; a piston structure is arranged in the piston cavity, a spring is arranged at the front section of the piston structure, and the tail section extends into a part of through holes of the rear valve body. When the rear brake is carried out, a certain pressure is generated at the rear brake to start braking, and the piston structure is pushed along with the pressure increase to enable the pressure to be transmitted to the front brake, so that a front and rear braking effect is formed. When the front brake is carried out, the piston structure can not act on the rear brake system, so that the brake control can be carried out only by arranging a front brake oil outlet and a rear brake oil outlet, the structure of the proportional valve is simplified, and the cost is reduced.
Description
Technical Field
The utility model relates to the technical field of braking devices, in particular to a braking device used on vehicles such as bicycles, electric bicycles or motorcycles.
Background
Bicycles, electric bicycles and motorcycles are very widely used vehicles, and have the advantages of energy conservation, environmental protection, convenience and flexibility, but also have the defect of insufficient safety. One of the important reasons for the insufficient safety is the problem of braking, in particular, the possibility of sudden braking is provided at any time in the running process of the electric bicycle or the motorcycle, and the front and rear brakes of the electric bicycle or the motorcycle are respectively and independently used at present and are generally divided into front operation braking and rear operation braking. Because of the current demand to be able to achieve brake linkage, i.e. front and rear wheels brake together one movement, the realization of the brake together is usually done by means of a proportional valve. However, such proportional valves on the market at present are generally complex and have high cost, for example, most proportional valves need to be provided with a plurality of (more than two) oil outlet holes to realize the control of the brake caliper, mainly because the piston system acts on the front brake and the rear brake at the same time, so that the rear brake cannot perform the brake control under the condition of only one oil outlet hole.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the linkage brake proportional valve which has the advantages of simpler structure, more reasonable design, lower cost, flexible control and good braking effect.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a linkage brake proportional valve which characterized in that: the valve comprises a front valve body and a rear valve body which are assembled together in a sealing way to form a complete valve body structure; the front valve body is internally provided with a front brake oil inlet, a front brake oil outlet and a piston cavity, and the front brake oil outlet is communicated with the front brake oil inlet through the piston cavity; the rear valve body is internally provided with a rear brake oil inlet and a rear brake oil outlet, the rear brake oil outlet and the rear brake oil inlet are integrated into a through hole, and the piston cavity is communicated with the through hole; the front brake oil inlet and the rear brake oil inlet are respectively connected with the left brake and the right brake through oil passing bolts, and the front brake oil outlet and the rear brake oil outlet are respectively connected with the front brake and the rear brake through the oil passing bolts; a piston structure is arranged in a piston cavity of the front valve body, a spring is arranged at the front section of the piston structure, and the tail section of the piston structure stretches into a part of through holes of the rear valve body.
Further, the piston structure comprises a plunger and a leather cup, the leather cup is fixed on the plunger middle section, the plunger front section and the plunger middle section are both positioned in a piston cavity of the front valve body, the plunger tail section is inserted into the rear valve body, and the tail of the plunger tail section extends into the through hole of the rear valve body.
Further, the spring is sleeved on the front section of the plunger, the front end of the spring abuts against the front valve body, and the tail end of the spring abuts against the middle section of the plunger.
Further, the back valve body is assembled and fixed with the front valve body through a screw, a valve body sealing ring is arranged between the front valve body and the back valve body to seal the butt joint part, the valve body sealing ring is embedded in the front end face of the back valve body, and the back end face of the front valve body compresses the valve body sealing ring.
Further, a plunger rear sealing ring is sleeved on the plunger tail section and is fixed in the rear valve body so as to realize sealing between the plunger and the rear valve body.
Further, a plunger front sealing ring is fixed on the plunger front section, the plunger front sealing ring is positioned in a piston cavity of the front valve body, and a front brake oil outlet is communicated with a position of the piston cavity between the plunger front sealing ring and a leather cup, so that brake oil can enter and exit.
Preferably, a vulcanization washer is provided on each oil passing bolt for assisting in connecting the various lines of the brake system.
Further, when the spring is in a natural extension state, the front brake oil inlet is directly communicated with the front brake oil outlet through the piston cavity.
The utility model adopts the front valve body and the rear valve body to combine into the whole valve body, a piston structure is designed between the front valve body and the rear valve body to control the brake oil, when the rear brake is performed, the pressure is firstly transmitted to the rear brake to generate certain pressure to start to generate braking, and the piston structure is pushed along with the increase of the pressure to transmit the pressure to the front brake, so that the effect of front and rear braking is formed. Therefore, on the premise that the braking system is effective, the deceleration of the vehicle during braking can be improved, and the probability of locking of the rear brake is greatly reduced. And when the front brake is carried out, the piston structure can not act on the rear brake system, so that the whole valve body can be subjected to brake control only by arranging a front brake oil outlet and a rear brake oil outlet, thereby simplifying the structure of the proportional valve and reducing the cost.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is an exploded view of the present utility model;
FIG. 3 is a schematic diagram of a braking system according to the present utility model.
In the figure, 1 is a front valve body, 11 is a front brake oil inlet, 12 is a front brake oil outlet, 2 is a rear valve body, 21 is a rear brake oil inlet, 22 is a rear brake oil outlet, 3 is a plunger, 31 is a plunger tail section, 4 is a leather cup, 5 is a spring, 51 is a plunger rear seal ring, 52 is a valve body seal ring, 53 is a plunger front seal ring, 6 is a screw rod, 7 is an oil passing bolt, 71 is a vulcanization washer, 81 is a left brake, 82 is a right brake, 91 is a rear brake, and 92 is a front brake.
Detailed Description
In this embodiment, referring to fig. 1, 2 and 3, the linkage brake proportional valve includes a front valve body 1 and a rear valve body 2, which are assembled together in a sealing manner to form a complete valve body structure; a front brake oil inlet hole 11, a front brake oil outlet hole 12 and a piston cavity (not labeled) are arranged in the front valve body 1, and the front brake oil outlet hole 12 is communicated with the front brake oil inlet hole 11 through the piston cavity; a rear brake oil inlet 21 and a rear brake oil outlet 22 are arranged in the rear valve body 2, the rear brake oil outlet 22 and the rear brake oil inlet 21 are integrated through holes of the rear valve body 2, and the piston cavity is communicated with the through holes; the front brake oil inlet 11 and the rear brake oil inlet 21 are respectively connected with the left brake 81 and the right brake 82 through one oil passing bolt 7, and the front brake oil outlet 12 and the rear brake oil outlet 22 are respectively connected with the front brake 91 and the rear brake 92 through the other oil passing bolt 7; a piston structure is arranged in the piston cavity of the front valve body 1, a spring 5 is arranged at the front section of the piston structure, and the tail section of the piston structure stretches into a part of the through hole of the rear valve body 2.
The piston structure comprises a plunger 3 and a leather cup 4, wherein the leather cup 4 is fixed on a plunger middle section, a plunger front section and the plunger middle section are both positioned in a piston cavity of the front valve body 1, a plunger tail section 31 is inserted into the rear valve body 2, and the tail of the plunger tail section 31 extends into the through hole of the rear valve body 2.
The spring 5 is sleeved on the front section of the plunger, the front end of the spring 5 abuts against the front valve body 1, and the tail end of the spring 5 abuts against the middle section of the plunger, so that the plunger 3 is reset after the rear brake or the foot brake is released.
The rear valve body 2 is assembled and fixed with the front valve body 1 through a screw rod 6, a valve body sealing ring 52 is arranged between the front valve body 1 and the rear valve body 2 to seal a butt joint part, the valve body sealing ring 52 is embedded in the front end face of the rear valve body 2, and the rear end face of the front valve body 1 compresses the valve body sealing ring 52.
The plunger tail section 31 is sleeved with a plunger rear sealing ring 51, and the plunger rear sealing ring 51 is fixed in the rear valve body 2 so as to realize sealing between the plunger 3 and the rear valve body 2.
The plunger front section is fixedly provided with a plunger front sealing ring 53, the plunger front sealing ring 53 is positioned in a piston cavity of the front valve body 1, and the front brake oil outlet 12 is communicated with the position of the piston cavity between the plunger front sealing ring 53 and the leather cup 4, so that brake oil can enter and exit.
A vulcanising washer 71 is provided on each oil passing bolt 7 for assisting in connecting the various lines of the braking system.
When the spring 5 is in a natural extension state, the front brake oil hole 11 is directly communicated with the front brake oil hole 12 through the piston cavity, so that the front brake can be independently carried out.
The realization principle is as follows: 1. when the right brake 82 is pressed down, the pressure generated by the brake oil is directly transmitted into the caliper of the front brake 92 to generate a braking effect, so that the front brake 92 maintains an independent braking function.
2. When the left brake 81 is pressed or the foot brake is pressed, the pressure generated by the brake oil is transmitted to the caliper of the rear brake 91 through the rear brake oil outlet 22, so that a certain pressure is generated to start braking. Along with the increase of the pressure in the rear valve body 2, when the pressure is greater than the spring force of the spring (for example, the piston opening pressure p=2.3 Mpa can be set, the initial torsion of the spring 5 is 25N, so that the front-rear braking ratio is 4:6), the piston structure starts to work, the plunger 3 is pressed and moves forward, the braking oil in the front valve body 1 is compressed under the action of the cup, and the front-rear braking effect is formed after the pressure is transmitted to the calipers of the front brake 92.
The utility model can be used for vehicles below '125', the distribution ratio of the rear wheels to the front wheels is 6:4, and thus, the braking systems of the front wheels and the rear wheels are reasonably distributed, and the wheel locking caused by overlarge braking force of a single braking system is prevented. On the premise that a braking system is effective, the deceleration of the vehicle during braking can be improved, and the locking probability of rear braking is greatly reduced.
The foregoing detailed description of the utility model has been presented for purposes of illustration and description, but is not intended to limit the scope of the utility model, i.e., the utility model is not limited to the details shown and described.
Claims (8)
1. The utility model provides a linkage brake proportional valve which characterized in that: the valve comprises a front valve body and a rear valve body which are assembled together in a sealing way to form a complete valve body structure; the front valve body is internally provided with a front brake oil inlet, a front brake oil outlet and a piston cavity, and the front brake oil outlet is communicated with the front brake oil inlet through the piston cavity; the rear valve body is internally provided with a rear brake oil inlet and a rear brake oil outlet, the rear brake oil outlet and the rear brake oil inlet are integrated into a through hole, and the piston cavity is communicated with the through hole; the front brake oil inlet and the rear brake oil inlet are respectively connected with the left brake and the right brake through oil passing bolts, and the front brake oil outlet and the rear brake oil outlet are respectively connected with the front brake and the rear brake through the oil passing bolts; a piston structure is arranged in a piston cavity of the front valve body, a spring is arranged at the front section of the piston structure, and the tail section of the piston structure stretches into a part of through holes of the rear valve body.
2. The linkage brake proportioning valve of claim 1 wherein: the piston structure comprises a plunger and a leather cup, the leather cup is fixed on the plunger middle section, the plunger front section and the plunger middle section are both positioned in a piston cavity of the front valve body, the plunger tail section is inserted into the rear valve body, and the tail of the plunger tail section extends into the through hole of the rear valve body.
3. The linkage brake proportioning valve of claim 2 wherein: the spring is sleeved on the front section of the plunger, the front end of the spring abuts against the front valve body, and the tail end of the spring abuts against the middle section of the plunger.
4. The linkage brake proportioning valve of claim 1 wherein: the rear valve body is assembled and fixed with the front valve body through a screw rod, a valve body sealing ring is arranged between the front valve body and the rear valve body to seal the butt joint part, the valve body sealing ring is embedded in the front end face of the rear valve body, and the rear end face of the front valve body compresses the valve body sealing ring.
5. The linkage brake proportional valve of claim 3, wherein: the plunger rear sealing ring is sleeved on the plunger tail section and fixed in the rear valve body so as to realize the sealing between the plunger and the rear valve body.
6. The linkage brake proportional valve of claim 3, wherein: the plunger front section is fixedly provided with a plunger front sealing ring, the plunger front sealing ring is positioned in a piston cavity of the front valve body, and a front brake oil outlet is communicated with a position of the piston cavity between the plunger front sealing ring and a leather cup.
7. The linkage brake proportioning valve of claim 1 wherein: a vulcanized washer is arranged on each oil passing bolt.
8. The linkage brake proportioning valve of claim 2 wherein: when the spring is in a natural extension state, the front brake oil inlet is directly communicated with the front brake oil outlet through the piston cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320863647.1U CN219821406U (en) | 2023-04-12 | 2023-04-12 | Linkage brake proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320863647.1U CN219821406U (en) | 2023-04-12 | 2023-04-12 | Linkage brake proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219821406U true CN219821406U (en) | 2023-10-13 |
Family
ID=88284356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320863647.1U Active CN219821406U (en) | 2023-04-12 | 2023-04-12 | Linkage brake proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219821406U (en) |
-
2023
- 2023-04-12 CN CN202320863647.1U patent/CN219821406U/en active Active
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