CN210149309U

CN210149309U - Automobile brake booster unit

Info

Publication number: CN210149309U
Application number: CN201920829720.7U
Authority: CN
Inventors: 马勇骉; 纪阳; 赵文超; 龙唯山; 张权
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-03-17
Anticipated expiration: 2029-06-04

Abstract

The utility model relates to a brake helping hand technical field just discloses a car brake booster unit, lid behind booster protecgulum and the booster, the right side fixed mounting of booster protecgulum has the sealing ring, four evenly distributed's spacing groove is seted up along the circumferencial direction to the outer wall of booster protecgulum, the sealing ring is kept away from the inner wall contact of the one end of booster protecgulum and booster back lid. This automobile brake booster unit, lift up the dead lever through spacing handle, then cover behind the booster on the booster protecgulum left, push away behind the booster lid to dead lever and the corresponding position in spacing groove left, push away the dead lever to the inside of spacing groove through tensioning spring and slider this moment, it is fixed with booster protecgulum and booster back lid through spacing groove and dead lever, then through thread groove and fixed thread with locking cap threaded connection in the inside of solid fixed ring, thereby simple structure and convenient to detach's purpose has been reached.

Description

Automobile brake booster unit

Technical Field

The utility model relates to a brake helping hand technical field specifically is an automobile brake booster unit.

Background

The brake booster pump uses the principle that the engine sucks air when working to cause vacuum on one side of the booster and generate pressure difference relative to normal air pressure on the other side, the pressure difference is used for enhancing braking thrust, even if only a small pressure difference exists between the two sides of the diaphragm, because the area of the diaphragm is large, a large thrust can be generated to push the diaphragm to move to one end with small pressure, when the engine runs, the brake pedal is stepped down, the vacuum valve is closed under the action of the push rod, meanwhile, the air valve at the other end of the push rod is opened, and after air enters (due to the generation of air-breathing sound when the brake pedal is stepped on), the state of air pressure imbalance in the cavity is caused, under the action of negative pressure, the diaphragm is pulled to one end of the master cylinder so as to drive a push rod of the master cylinder, and therefore the function of further amplifying leg strength is achieved.

The brake booster pump in the prior art is generally characterized in that a front cover and a rear cover of the booster pump are connected together by a screw or welding method, the connection method is troublesome, and the inside of the booster pump is not easy to disassemble and maintain, so that the maintenance is inconvenient, and the problem is solved by providing an automobile brake booster device.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a car brake booster unit possesses simple structure, advantages such as convenient to detach, and the brake booster pump of having solved among the prior art links together the protecgulum and the back lid of booster pump through screw or welded method generally, and this kind of connection method is comparatively troublesome, and difficult dismantlement carries out the problem of maintaining to the inside of booster pump moreover.

(II) technical scheme

For realizing above-mentioned simple structure, convenient to detach's purpose, the utility model provides a following technical scheme: an automobile brake booster device comprises a booster front cover and a booster rear cover, wherein a sealing ring is fixedly arranged on the right side of the booster front cover, four evenly-distributed limiting grooves are formed in the outer wall of the booster front cover in the circumferential direction, one end, away from the booster front cover, of the sealing ring is in contact with the inner wall of the booster rear cover, four evenly-distributed fixing grooves are formed in the outer ring of the booster rear cover in the circumferential direction, the fixing grooves correspond to the limiting grooves, a fixing ring is fixedly arranged in the booster rear cover and positioned in the fixing grooves, fixing threads are fixedly arranged on the outer wall of the fixing ring, a guide groove is formed in the middle of the fixing ring, a fixing rod is arranged in the guide groove, a sliding block is connected in the fixing groove and positioned below the fixing ring in a sliding manner, a limiting ring is fixedly arranged on the inner bottom wall of the fixing, the inner wall of spacing ring and the outer wall contact of dead lever, one side that the slider is close to solid fixed ring has a plurality of tensioning spring along circumferencial direction fixed mounting, one side that the booster protecgulum was kept away from to the fixed slot is provided with the locking cap, the cross recess has been seted up to the one end that the fixed slot was kept away from to the locking cap, through spacing groove and dead lever joint between booster protecgulum and the booster back lid.

Preferably, one side of the fixing ring away from the sliding block is parallel to the outer side wall of the booster rear cover, the fixing ring comprises a cylinder and a disc, one end of the cylinder, which is located inside the fixing groove, is fixedly connected with the disc, and the outer wall of the disc is fixedly connected with the inner wall of the fixing groove.

Preferably, one end of the fixing rod, which is close to the outer side wall of the rear cover of the booster, is fixedly provided with a limiting handle, and the limiting handle is positioned inside the fixing cap.

Preferably, the fixing rod is fixedly installed in the middle of the sliding block, and one end, far away from the fixing cap, of the fixing rod penetrates through the guide groove and the sliding block and extends to the inside of the limiting groove.

Preferably, one end of the tensioning spring is fixedly installed at the top of the sliding block, and the end of the tensioning spring, which is far away from the sliding block, is fixedly installed at the bottom of the fixing ring.

Preferably, the inner wall of the fixing cap is provided with a thread groove, and the fixing cap is in threaded connection with the fixing ring through the thread groove and the fixing thread.

(III) advantageous effects

Compared with the prior art, the utility model provides an automobile brake booster unit possesses following beneficial effect:

1. this automobile brake booster unit, lift up the dead lever through spacing handle, then cover behind the booster on the booster protecgulum left, push away behind the booster lid to dead lever and the corresponding position of spacing groove left, push away the dead lever to the inside of spacing groove through tensioning spring and slider this moment, it is fixed with booster protecgulum and booster back lid through spacing groove and dead lever, then through thread groove and fixed thread with locking cap threaded connection in the inside of solid fixed ring, protect the dead lever through the locking cap, avoid it to receive external force to lead to damaging in the use, then seal up booster inside through the seal ring, avoid gas leakage, thereby reached simple structure and convenient to detach's purpose.

2. This automobile brake booster unit takes out the locking cap through cross recess, then lifts the dead lever through spacing handle from the inside roll-off of spacing groove, carries on spacingly through the spacing ring to the dead lever this moment, avoids it to rock about the in-process that lifts up, then moves booster rear cover right and makes its and booster protecgulum separation to simple structure and convenient to detach's purpose has been reached.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the internal structure of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 1 according to the present invention;

fig. 4 is a top view of the inside of the fixing groove of the present invention;

fig. 5 is a perspective view of the fixing ring of the present invention.

In the figure: 1. a booster front cover; 2. a booster rear cover; 3. a fixing cap; 4. a cross groove; 5. a seal ring; 6. a limiting ring; 7. a slider; 8. fixing threads; 9. a thread groove; 10. tensioning the spring; 11. a limiting handle; 12. fixing the rod; 13. a guide groove; 14. a fixing ring; 15. fixing grooves; 16. a limiting groove.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-5, an automobile brake booster includes a booster front cover 1 and a booster rear cover 2, a sealing ring 5 is fixedly installed on the right side of the booster front cover 1, four evenly distributed limiting grooves 16 are formed on the outer wall of the booster front cover 1 along the circumferential direction, one end of the sealing ring 5 away from the booster front cover 1 contacts with the inner wall of the booster rear cover 2, four evenly distributed fixing grooves 15 are formed on the outer ring of the booster rear cover 2 along the circumferential direction, the fixing grooves 15 correspond to the limiting grooves 16, a fixing ring 14 is fixedly installed inside the booster rear cover 2 and inside the fixing grooves 15, a fixing thread 8 is fixedly installed on the outer wall of the fixing ring 14, a guide groove 13 is formed in the middle of the fixing ring 14, a fixing rod 12 is arranged inside the guide groove 13, and a sliding block 7 is slidably connected inside the fixing groove 15 and below the fixing ring 14, when the booster is installed, the fixing rod 12 is lifted through the limiting handle 11, the booster rear cover 2 is covered on the booster front cover 1 leftwards, the booster rear cover 2 is pushed leftwards to the position where the fixing rod 12 corresponds to the limiting groove 16, the fixing rod 12 is pushed to the inside of the limiting groove 16 through the tensioning spring 10 and the sliding block 7, the booster front cover 1 and the booster rear cover 2 are fixed through the limiting groove 16 and the fixing rod 12, the fixing cap 3 is in threaded connection with the inside of the fixing ring 14 through the thread groove 9 and the fixing thread 8, the fixing rod 12 is protected through the fixing cap 3, the booster front cover 1 and the booster rear cover 2 are prevented from being damaged by external force in the using process, then the inside of the booster is sealed through the sealing ring 5, air leakage is avoided, the purposes of simple structure and convenient disassembly are achieved, the limiting ring 6 is fixedly installed on the inner bottom wall of the fixing groove 15, the inner wall of a limiting ring 6 is contacted with the outer wall of a fixed rod 12, one side of a sliding block 7, which is close to a fixed ring 14, is fixedly provided with a plurality of tensioning springs 10 along the circumferential direction, one side of the fixed groove 15, which is far away from a booster front cover 1, is provided with a fixed cap 3, one end of the fixed cap 3, which is far away from the fixed groove 15, is provided with a cross groove 4, the booster front cover 1 and a booster rear cover 2 are clamped with the fixed rod 12 through a limiting groove 16, when the booster needs to be disassembled for maintenance, the fixed cap 3 is taken out through the cross groove 4, then the fixed rod 12 is lifted up through a limiting handle 11 and slides out from the inside of the limiting groove 16, at the moment, the fixed rod 12 is limited through the limiting ring 6, the left-right shaking during the lifting process is avoided, then the booster rear cover 2 is moved rightwards to be separated from the booster front cover 1, thereby, and will not be described in detail herein.

Concretely, one side that solid fixed ring 14 kept away from slider 7 is parallel with the lateral wall of booster rear cover 2, and solid fixed ring 14 includes drum and disc, and the drum is located inside one end and the disc fixed connection of fixed slot 15, and the outer wall of disc and the inner wall fixed connection of fixed slot 15 through solid fixed ring 14 fixed locking cap 3, protect dead lever 12 through fixed locking cap 3, avoid it to receive external force in the use to lead to damaging.

Specifically, the one end fixed mounting that dead lever 12 is close to behind the booster lid 2 lateral wall has spacing handle 11, and spacing handle 11 is located the inside of locking cap 3, removes dead lever 12 through spacing handle 11, conveniently lifts up dead lever 12.

Specifically, dead lever 12 fixed mounting runs through guide way 13 and slider 7 and extends to the inside of spacing groove 16 in the middle part of slider 7, and the one end that dead lever 12 kept away from fixed cap 3 is fixed with lid 2 behind booster protecgulum 1 and the booster through spacing groove 16 and dead lever 12 to simple structure and convenient to detach's purpose has been reached.

Specifically, one end of the tensioning spring 10 is fixedly mounted at the top of the sliding block 7, one end of the tensioning spring 10, which is far away from the sliding block 7, is fixedly mounted at the bottom of the fixing ring 14, and the fixing rod 12 is pushed to the inside of the limiting groove 16 through the tensioning spring 10 and the sliding block 7, so that the booster front cover 1 and the booster rear cover 2 are fixed.

Specifically, thread groove 9 has been seted up to the inner wall of locking cap 3, through thread groove 9 and fixed thread 8 threaded connection between locking cap 3 and the solid fixed ring 14, through thread groove 9 and fixed thread 8 with locking cap 3 threaded connection in the inside of solid fixed ring 14, protect dead lever 12 through locking cap 3, avoid it to receive external force in the use to lead to damaging.

The working principle is as follows: when the booster is installed, the fixing rod 12 is lifted through the limiting handle 11, the booster rear cover 2 is covered on the booster front cover 1 leftwards, the booster rear cover 2 is pushed leftwards to the position where the fixing rod 12 corresponds to the limiting groove 16, the fixing rod 12 is pushed to the inside of the limiting groove 16 through the tensioning spring 10 and the sliding block 7, the booster front cover 1 and the booster rear cover 2 are fixed through the limiting groove 16 and the fixing rod 12, the fixing cap 3 is connected to the inside of the fixing ring 14 in a threaded mode through the thread groove 9 and the fixing threads 8, the fixing rod 12 is protected through the fixing cap 3, the booster front cover 1 and the booster rear cover 2 are prevented from being damaged by external force in the using process, then the booster inside is sealed through the sealing ring 5, air leakage is avoided, when the booster needs to be disassembled for maintenance, the fixing cap 3 is taken out through the cross groove 4, then the fixing rod 12 is lifted through the limiting handle 11 and slides out of, at this moment, the fixing rod 12 is limited through the limiting ring 6, the left and right shaking of the fixing rod in the lifting process is avoided, and then the booster rear cover 2 is moved rightwards to be separated from the booster front cover 1.

In conclusion, this automobile brake booster, lift dead lever 12 through spacing handle 11, then cover booster back cover 2 left on booster protecgulum 1, push booster back cover 2 left to dead lever 12 and the corresponding position of spacing groove 16, push dead lever 12 to the inside of spacing groove 16 through tensioning spring 10 and slider 7 this moment, cover booster protecgulum 1 and booster back cover 2 through spacing groove 16 and dead lever 12 fixed, then through thread groove 9 and fixed thread 8 with the inside of solid fixed cap 3 threaded connection in solid fixed ring 14, protect dead lever 12 through solid fixed cap 3, avoid it to receive external force to lead to damaging in the use, then seal booster inside through sealing ring 5, avoid gas leakage, thereby reached simple structure and convenient to detach's purpose.

And, take out fixing cap 3 through cross recess 4, then lift up dead lever 12 through spacing handle 11 and follow the inside roll-off of spacing groove 16, spacing through spacing ring 6 to dead lever 12 this moment, avoid it to rock about the in-process that lifts up, then move booster rear cover 2 right and make it separate with booster protecgulum 1 to simple structure and convenient to detach's purpose have been reached.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a car brake booster unit, lid (2) behind booster protecgulum (1) and the booster, its characterized in that: the booster is characterized in that a sealing ring (5) is fixedly arranged on the right side of a booster front cover (1), four evenly distributed limiting grooves (16) are formed in the outer wall of the booster front cover (1) along the circumferential direction, one end, away from the booster front cover (1), of the sealing ring (5) is in contact with the inner wall of the booster rear cover (2), four evenly distributed fixing grooves (15) are formed in the outer ring of the booster rear cover (2) along the circumferential direction, the fixing grooves (15) correspond to the limiting grooves (16), a fixing ring (14) is fixedly arranged in the booster rear cover (2) and located in the fixing grooves (15), fixing threads (8) are fixedly arranged on the outer wall of the fixing ring (14), a guide groove (13) is formed in the middle of the fixing ring (14), a fixing rod (12) is arranged in the guide groove (13), and a sliding block (7) is connected to the inside of the fixing groove (15) and located below the fixing ring, the utility model discloses a booster front cover, including fixed slot (15), outer lane fixed mounting that the interior diapire of fixed slot (15) is located dead lever (12) has spacing ring (6), the inner wall of spacing ring (6) and the outer wall contact of dead lever (12), one side that slider (7) are close to solid fixed ring (14) has a plurality of tensioning spring (10) along circumferencial direction fixed mounting, one side that booster front cover (1) was kept away from in fixed slot (15) is provided with locking cap (3), cross recess (4) have been seted up to the one end that fixed slot (15) were kept away from in locking cap (3), through spacing groove (16) and dead lever (12) joint between booster front cover (1) and booster rear cover (2).

2. The brake booster of claim 1, wherein: one side of the fixing ring (14) far away from the sliding block (7) is parallel to the outer side wall of the booster rear cover (2), the fixing ring (14) comprises a cylinder and a disc, one end of the cylinder, which is located inside the fixing groove (15), is fixedly connected with the disc, and the outer wall of the disc is fixedly connected with the inner wall of the fixing groove (15).

3. The brake booster of claim 1, wherein: one end of the fixing rod (12) close to the outer side wall of the booster rear cover (2) is fixedly provided with a limiting handle (11), and the limiting handle (11) is located inside the fixing cap (3).

4. The brake booster of claim 1, wherein: the fixing rod (12) is fixedly installed in the middle of the sliding block (7), and one end, far away from the fixing cap (3), of the fixing rod (12) penetrates through the guide groove (13) and the sliding block (7) and extends to the inside of the limiting groove (16).

5. The brake booster of claim 1, wherein: one end of the tensioning spring (10) is fixedly arranged at the top of the sliding block (7), and one end, far away from the sliding block (7), of the tensioning spring (10) is fixedly arranged at the bottom of the fixing ring (14).

6. The brake booster of claim 1, wherein: thread groove (9) have been seted up to the inner wall of locking cap (3), pass through thread groove (9) and fixed thread (8) threaded connection between locking cap (3) and fixed ring (14).