CN217892804U - Brake master cylinder - Google Patents
Brake master cylinder Download PDFInfo
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- CN217892804U CN217892804U CN202221893396.3U CN202221893396U CN217892804U CN 217892804 U CN217892804 U CN 217892804U CN 202221893396 U CN202221893396 U CN 202221893396U CN 217892804 U CN217892804 U CN 217892804U
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- cylinder piston
- pump body
- spring
- piston
- push rod
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Abstract
The utility model relates to an automobile brake technical field discloses brake master cylinder, which comprises a pump body, the inside of the pump body is provided with the inner chamber, inside one side sliding connection of inner chamber has the push rod, the one end fixedly connected with connecting seat of the pump body is kept away from to the push rod, one side edge department fixed connection of connecting seat is in the one end of first spring, the one end fixed connection that the connecting seat was kept away from to the push rod is in the one end of back jar piston, the other end fixed connection of back jar piston is in the one end of well jar piston, be provided with the third spring on the well jar piston, one side that back jar piston is close to well jar piston is provided with the second spring, the one end that well jar piston kept away from back jar piston is provided with preceding jar piston. The utility model discloses in, through the removal and the reseing of a plurality of springs drive piston and push rod between the piston, prevent that the long-time spring force that causes of using of single spring from descending the scheduling problem, guarantee the normal braking of brake master cylinder.
Description
Technical Field
The utility model relates to an automobile brake technical field especially relates to brake master cylinder.
Background
The brake master cylinder is a key component in an automobile brake system and mainly has the main functions of pushing a piston in a master cylinder to move forwards under the action of pedal force, enabling a pressure cavity of the brake master cylinder to generate hydraulic pressure and then conveying the hydraulic pressure to the brake system of the whole automobile through an oil outlet of the brake master cylinder, so that the brake function of the automobile is realized.
The brake master cylinder is an important component of an automobile brake device, is the core of a hydraulic brake system, and has the function of converting mechanical energy input from the outside into hydraulic energy and transmitting the hydraulic energy to a brake wheel cylinder through a pipeline.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a master cylinder.
In order to achieve the above purpose, the utility model adopts the following technical scheme: brake master cylinder, including the pump body, the inside of the pump body is provided with the inner chamber, inside one side sliding connection of inner chamber has the push rod, the one end fixedly connected with connecting seat of the pump body is kept away from to the push rod, one side edge department fixed connection of connecting seat is in the one end of first spring, the one end fixed connection of connecting seat is kept away from to the push rod is in the one end of back cylinder piston, the other end fixed connection of back cylinder piston is in the one end of well cylinder piston, be provided with the third spring on the well cylinder piston, one side that back cylinder piston is close to well cylinder piston is provided with the second spring, the one end that well cylinder piston kept away from back cylinder piston is provided with preceding cylinder piston, the one end that well cylinder piston was kept away from to preceding cylinder piston is provided with the fourth spring, the one end middle part that well cylinder piston was kept away from to preceding cylinder piston is provided with the fifth spring.
As a further description of the above technical solution:
the pump body is characterized in that an oil inlet valve seat connecting port is formed in one side of the middle of the pump body, an oil outlet connecting hole is formed in the other side of the middle of the pump body, and the bottom ends of the oil inlet valve seat connecting port and the oil outlet connecting hole are communicated with the inside of the inner cavity.
As a further description of the above technical solution:
one side of the middle part, far away from the connecting seat, of the pump body is provided with a compensation valve seat connecting hole, the bottom end of the compensation valve seat connecting hole is communicated with one end of an oil supplementing channel, and the other end of the oil supplementing channel is communicated with the inside of the inner cavity.
As a further description of the above technical solution:
the connecting seat is kept away from to the pump body one side edge is provided with the disk seat that produces oil, the connecting seat is kept away from to the pump body one side is provided with the scavenge valve.
As a further description of the above technical solution:
the middle part of the rear cylinder piston is provided with a rear cylinder sealing ring, and the middle part of the front cylinder piston is provided with a front cylinder sealing ring.
As a further description of the above technical solution:
one end of the first spring, which is far away from the connecting seat, is fixedly connected to one side of the middle part of the outer wall of the pump body.
As a further description of the above technical solution:
and a bypass connecting hole is formed in one side of the middle of the pump body.
The utility model discloses following beneficial effect has:
the utility model discloses in, after the braking finishes, the pressure that the push rod received disappears, cylinder piston resets before fifth spring and the fourth spring promote, cylinder piston resets in preceding cylinder piston and the promotion of third spring, seal oil feed disk seat connector and the connecting hole that produces oil, cylinder piston and second spring drive back cylinder piston and reset, back cylinder piston and first spring drive the push rod simultaneously and reset, the removal and the resetting of driving piston and push rod through a plurality of springs between the piston, prevent that the long-time spring force that causes of using of single spring from descending the scheduling problem, guarantee the normal braking of braking master cylinder.
Drawings
Fig. 1 is a front view of a master cylinder according to the present invention;
fig. 2 is a sectional view of the internal structure of the pump body of the master cylinder according to the present invention;
fig. 3 is an enlarged schematic view of a structure shown in fig. 2 according to the present invention.
Illustration of the drawings:
1. a pump body; 2. an oil inlet valve seat connecting port; 3. a bypass connecting hole; 4. an oil outlet valve seat; 5. a compensating valve seat connecting hole; 6. an oil outlet connecting hole; 7. a first spring; 8. a connecting seat; 9. a rear cylinder seal ring; 10. a push rod; 11. a second spring; 12. an inner cavity; 13. a third spring; 14. a middle cylinder piston; 15. a front cylinder piston; 16. a fourth spring; 17. a fifth spring; 18. an oil supplementing channel; 19. a front cylinder seal ring; 20. an oil return valve; 21. a rear cylinder piston.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides an embodiment: the brake master cylinder comprises a pump body 1, an inner cavity 12 is formed in the pump body 1, a push rod 10 is connected to one side of the inner cavity 12 in a sliding mode, a connecting seat 8 is fixedly connected to one end, far away from the pump body 1, of the push rod 10, one side edge of the connecting seat 8 is fixedly connected to one end of a first spring 7, one end, far away from the connecting seat 8, of the push rod 10 is fixedly connected to one end of a rear cylinder piston 21, the other end of the rear cylinder piston 21 is fixedly connected to one end of a middle cylinder piston 14, a third spring 13 is arranged on the middle cylinder piston 14, one side, close to the middle cylinder piston 14, of the rear cylinder piston 21 is provided with a second spring 11, one end, far away from the rear cylinder piston 21, of the middle cylinder piston 14 is provided with a front cylinder piston 15, one end, far away from the middle cylinder piston 14, of the front cylinder piston 15 is provided with a fourth spring 16, the middle cylinder piston 14 is provided with a fifth spring 17 in the middle of one end, when pressure on the push rod 10 disappears, the push rod 10 pushes the front cylinder piston 15 and the third spring 13 to reset the middle cylinder piston 14, the middle cylinder piston 14 to reset, the oil inlet valve seat 2 and the outlet 6 are closed, the piston 14 are driven by the second spring, the push rod 21 and the rear cylinder piston to drive the rear cylinder piston to move, and the push rod 21 to drive the master cylinder piston to drive the push rod to move, and drive the push rod 21 to drive the rear cylinder piston to move, and drive the master cylinder piston to drive the push rod to drive the master cylinder piston to reset spring to reset piston to reset, and prevent the push rod 21 to move.
An oil inlet valve seat connecting port 2 is arranged on one side of the middle part of a pump body 1, brake oil conveniently enters the pump body 1 of a master brake pump through the oil inlet valve seat connecting port 2, an oil outlet connecting hole 6 is arranged on the other side of the middle part of the pump body 1, the brake oil in the pump body 1 is pumped to a piston of a wheel cylinder through the oil outlet connecting hole 6, the bottom ends of the oil inlet valve seat connecting port 2 and the oil outlet connecting hole 6 are both communicated with the inside of an inner cavity 12, a compensation valve seat connecting hole 5 is arranged on one side of the middle part of the pump body 1 far away from a connecting seat 8, the bottom end of the compensation valve seat connecting hole 5 is communicated with one end of an oil supplementing channel 18, brake oil compensation is conveniently carried out in the inner cavity 12 of the pump body 1 through the compensation valve seat connecting hole 5, the other end of the oil supplementing channel 18 is communicated with the inside of the inner cavity 12, and the compensated brake oil is pumped into the inner cavity 12 in the pump body 1 through the oil supplementing channel 18, one side edge department that the connecting seat 8 was kept away from to the pump body 1 is provided with the disk seat 4 that produces oil, discharge the unnecessary brake oil of the pump body 1 through the disk seat 4 that produces oil, one side that the connecting seat 8 was kept away from to the pump body 1 is provided with back oil valve 20, the middle part of back jar piston 21 is provided with back jar sealing washer 9, the middle part of preceding jar piston 15 is provided with preceding jar sealing washer 19, it seals the front and back jar in inner chamber 12 through back jar sealing washer 9 and preceding jar sealing washer 19, prevent that the brake oil in inner chamber 12 from taking place to leak, the one end fixed connection that connecting seat 8 was kept away from to first spring 7 is in outer wall middle part one side of the pump body 1, fix the other end of first spring 7 through the pump body 1, the stability of integrated device is improved, middle part one side of the pump body 1 is provided with bypass connecting hole 3, conveniently communicate brake master cylinder and other devices through bypass connecting hole 3.
The working principle is as follows: when the brake master cylinder is used, a brake pedal of an automobile moves downwards and simultaneously drives a push rod 10 to move in an inner cavity 12, the push rod 10 compresses a first spring 7 to generate deformation through a connecting seat 8 while moving, the push rod 10 moves to push a rear cylinder piston 21 to move, the rear cylinder piston 21 moves and simultaneously compresses a second spring 11 to generate deformation and pushes a middle cylinder piston 14 to move, the middle cylinder piston 14 moves and simultaneously compresses a front cylinder piston 15, the middle cylinder piston 14 moves to open an oil inlet valve seat connecting port 2 and an oil outlet connecting hole 6, the front cylinder piston 15 moves to compress a fourth spring 16, when the fourth spring 16 is compressed to a half, the front cylinder piston 15 synchronously compresses a fifth spring 17 to generate deformation, and through the movement of a piston in the inner cavity 12, brake oil is pumped into a piston of a brake cylinder through an oil inlet valve seat connecting port 2, an inner cavity 12 and an oil outlet connecting hole 6, so that the brake effect of a vehicle is realized, after braking is finished, the pressure on a push rod 10 disappears, a fifth spring 17 and a fourth spring 16 push a front cylinder piston 15 to reset, a front cylinder piston 15 and a third spring 13 push a middle cylinder piston 14 to reset, the oil inlet valve seat connecting port 2 and the oil outlet connecting hole 6 are sealed, the middle cylinder piston 14 and a second spring 11 drive a rear cylinder piston 21 to reset, the rear cylinder piston 21 and a first spring 7 simultaneously drive the push rod 10 to reset, the pistons and the push rod 10 are driven to move and reset through a plurality of springs between the pistons, and the problems of spring elasticity reduction and the like caused by long-time use of a single spring are solved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. Brake master cylinder, including the pump body (1), its characterized in that: the utility model discloses a pump body, including pump body (1), one side sliding connection in inside of inner chamber (12) has push rod (10), the one end fixedly connected with connecting seat (8) of pump body (1) are kept away from in push rod (10), one side edge fixedly connected in the one end of first spring (7) of connecting seat (8), the one end fixed connection in back cylinder piston (21) of connecting seat (8) is kept away from in push rod (10), the other end fixed connection in the one end of well cylinder piston (14) of back cylinder piston (21), be provided with third spring (13) on well cylinder piston (14), one side that back cylinder piston (21) is close to well cylinder piston (14) is provided with second spring (11), the one end that well cylinder piston (14) was kept away from in well cylinder piston (14) is provided with preceding cylinder piston (15), the one end that well cylinder piston (14) was kept away from in preceding cylinder piston (15) is provided with fourth spring (16), the one end middle part that well cylinder piston (14) was kept away from in well cylinder piston (14) in preceding cylinder piston (15) is provided with fifth spring (17).
2. The master cylinder of claim 1, wherein: the pump is characterized in that an oil inlet valve seat connecting port (2) is formed in one side of the middle of the pump body (1), an oil outlet connecting hole (6) is formed in the other side of the middle of the pump body (1), and the bottom ends of the oil inlet valve seat connecting port (2) and the oil outlet connecting hole (6) are communicated with the inner portion of the inner cavity (12).
3. The master cylinder of claim 1, wherein: one side of the middle part, far away from the connecting seat (8), of the pump body (1) is provided with a compensation valve seat connecting hole (5), the bottom end of the compensation valve seat connecting hole (5) is communicated with one end of an oil supplementing channel (18), and the other end of the oil supplementing channel (18) is communicated with the inside of the inner cavity (12).
4. The master cylinder of claim 1, wherein: an oil outlet valve seat (4) is arranged at one side edge of the pump body (1) far away from the connecting seat (8), and an oil return valve (20) is arranged at one side of the pump body (1) far away from the connecting seat (8).
5. The master cylinder of claim 1, wherein: the middle part of the rear cylinder piston (21) is provided with a rear cylinder sealing ring (9), and the middle part of the front cylinder piston (15) is provided with a front cylinder sealing ring (19).
6. The master cylinder of claim 1, wherein: one end of the first spring (7) far away from the connecting seat (8) is fixedly connected to one side of the middle part of the outer wall of the pump body (1).
7. The master cylinder of claim 1, wherein: and a bypass connecting hole (3) is formed in one side of the middle of the pump body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221893396.3U CN217892804U (en) | 2022-07-21 | 2022-07-21 | Brake master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221893396.3U CN217892804U (en) | 2022-07-21 | 2022-07-21 | Brake master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217892804U true CN217892804U (en) | 2022-11-25 |
Family
ID=84136839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221893396.3U Active CN217892804U (en) | 2022-07-21 | 2022-07-21 | Brake master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217892804U (en) |
-
2022
- 2022-07-21 CN CN202221893396.3U patent/CN217892804U/en active Active
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