CN113217567A

CN113217567A - Brake air chamber assembly for vehicle

Info

Publication number: CN113217567A
Application number: CN202110634007.9A
Authority: CN
Inventors: 贾启峰
Original assignee: Nanzhang Pengcheng Auto Parts Co ltd
Current assignee: Nanzhang Pengcheng Auto Parts Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-08-06

Abstract

The invention relates to a vehicle brake air chamber assembly, which comprises a shell, a cover body and a sealing component, wherein a push rod with one end penetrating through the shell and extending into the cover body is movably arranged on the left side of the shell, a push rod disc is fixedly arranged on the right side of the push rod, and diaphragms are fixedly arranged on the periphery of the outer surface of the push rod disc; the sealing assembly comprises a sealing ring, the outer surfaces of the shell and the cover body are movably provided with the sealing ring, bolts with one ends penetrating through and extending to the inner parts of the shell and the cover body are movably arranged on the periphery of the outer surface of the sealing ring, a fixing groove is formed in the left side of the inner part of the shell, and a shaft seal movably connected with the push rod is movably arranged in the fixing groove. This automobile-used brake chamber assembly through setting up seal assembly, has strengthened holistic leakproofness greatly, avoids influencing the stability of air chamber output power to cause the braking effect to descend, through setting up the gag lever post, can effectively avoid the push-rod dish to take place to squint and rock, improve holistic stability.

Description

Brake air chamber assembly for vehicle

Technical Field

The invention relates to the technical field of brake chambers, in particular to a brake chamber assembly for a vehicle.

Background

The brake air chamber is a device, also called a wheel cylinder, composed of an air inlet, a cover, a diaphragm, a supporting disc, a return spring, a shell, a push rod, a connecting fork, a clamp, a bolt and the like, and is used for converting the pressure of compressed air into mechanical force for rotating a brake cam shaft to realize braking action.

Present automobile-used brake chamber assembly is various at present, but these brake chamber assemblies all have the problem of not convenient to use mostly, and whole leakproofness is relatively poor, influences the stability of air chamber output power easily to cause braking effect to descend, be unfavorable for actual use.

For example, the patent with application number CN201520517905.6 discloses a front brake air chamber assembly, which includes a deep shell and a shallow shell that are clamped by a clamp, a push rod passes through the middle position of the deep shell and the shallow shell, the push rod passes through a second spring seat and a first spring seat, a conical compression spring is arranged between the first spring seat and the second spring seat, the conical compression spring is sleeved on the push rod, one end of the conical compression spring with a large diameter is positioned in the first spring seat, the conical compression spring is arranged between the first spring seat and the second spring seat, and the end of the conical compression spring with a large diameter falls to the shallow shell side, so that the brake air chamber is safer and more reliable in work, and meanwhile, the durability of the conical compression spring is increased, but the problem that the overall sealing performance is poor and the stability of the output force of the air chamber is easily influenced is still existed.

For another example, patent application No. CN201420170358.4 discloses a brake front air chamber assembly, the welding device comprises a shallow shell, a deep shell, a clamp, a rubber membrane, a return spring, a fixed groove plate and a push rod, wherein the side of the deep shell is clamped with the side of the shallow shell through the clamp, the rubber membrane is arranged on the inner side surface of the shallow shell, the push rod penetrates through the middle positions of the shallow shell and the deep shell, the return spring arranged at the middle position of the inner side surface of the rubber membrane on the fixed groove plate and penetrates through the outer side of the push rod, welding bolts are uniformly arranged on the side surface of the deep shell, the head sides of the welding bolts are positioned on the inner side of the deep shell, the reinforcing plate is arranged at the welding position of the bolt head and the deep shell of the welding bolt, and the arrangement mode is convenient to install, safe and reliable through positioning precision, but still have the whole leakproofness relatively poor, influence the stable problem of air chamber output power easily.

Therefore, the present invention provides a brake chamber assembly for a vehicle to improve the overall sealing performance of the brake chamber assembly.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a vehicle brake air chamber assembly which has the advantages of good overall sealing performance and the like, and solves the problems that the overall sealing performance is poor, the stability of the output force of an air chamber is easily influenced, and the braking effect is reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a brake air chamber assembly for a vehicle comprises a shell, a cover body and a sealing component, wherein a push rod with one end penetrating through the shell and extending into the cover body is movably mounted on the left side of the shell, a push rod disc is fixedly mounted on the right side of the push rod, and diaphragms are fixedly mounted on the periphery of the outer surface of the push rod disc;

the sealing assembly comprises a sealing ring, the outer surfaces of the shell and the cover body are movably provided with the sealing ring, bolts with one ends penetrating through and extending to the inner parts of the shell and the cover body are movably arranged on the periphery of the outer surface of the sealing ring, a fixing groove is formed in the left side of the inner part of the shell, and a shaft seal movably connected with the push rod is movably arranged in the fixing groove.

Further, the quantity of bolt is a plurality of and is the equidistance and distributes around the sealing washer surface, the casing passes through sealing washer and lid fixed connection.

Further, thread grooves are formed in the periphery of the outer surfaces of the shell and the cover body, and the bolt is in threaded connection with the thread grooves.

Furthermore, the left side of the shell is provided with a movable hole matched with the size of the push rod, and the fixed groove is located on the periphery of the movable hole.

Furthermore, a spring movably connected with the push rod disc is fixedly installed on the left side inside the shell, and the spring is located on the outer surface of the push rod.

Further, the equal fixed mounting all around of casing and lid inside has one end to run through and extend to the outside gag lever post of push rod dish, the inside spacing hole of all offering with gag lever post size looks adaptation around of push rod dish.

Furthermore, a connecting block is fixedly installed on the left side of the push rod, and a brake valve air outlet pipe is fixedly installed in the middle of the right side of the cover body.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this automobile-used brake chamber assembly through setting up seal assembly, has strengthened holistic leakproofness greatly, avoids influencing the stability of air chamber output power to cause the braking effect to descend, through setting up the gag lever post, can effectively avoid the push-rod dish to take place to squint and rock, improve holistic stability, do benefit to actual use.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

fig. 3 is a front view of the present invention.

In the figure: the brake valve comprises a shell 1, a cover 2, a push rod 3, a push rod disc 4, a diaphragm 5, a sealing assembly 6, a sealing ring 601, a 602 bolt, a 603 fixing groove, a 604 shaft seal, a spring 7, a limiting rod 8, a 9 connecting block and a brake valve air outlet pipe 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, in the present embodiment, a brake chamber assembly for a vehicle includes a housing 1, a cover 2, and a sealing assembly 6, a push rod 3 having one end penetrating through the housing 1 and extending into the cover 2 is movably installed at the left side of the housing 1, a push rod disc 4 is fixedly installed at the right side of the push rod 3, diaphragms 5 are fixedly installed around the outer surface of the push rod disc 4, the sealing assembly 6 includes a sealing ring 601, a sealing ring 601 is movably installed on the outer surfaces of the housing 1 and the cover 2, bolts 602 having one end penetrating through and extending into the housing 1 and the cover 2 are movably installed around the outer surface of the sealing ring 601, the number of the bolts 602 is several and is equidistantly distributed around the outer surface of the sealing ring 601, the housing 1 is fixedly connected to the cover 2 through the sealing ring 601, thread grooves are formed around the outer surfaces of the housing 1 and the cover 2, and the bolts 602 are in threaded connection with the thread grooves, fixed slot 603 has been seted up to the inside left side of casing 1, and the movable hole with 3 size looks adaptations of push rod is seted up on the left side of casing 1, and fixed slot 603 is located around the movable hole, and the inside movable mounting of fixed slot 603 has the bearing seal 604 with push rod 3 swing joint, and the inside left side fixed mounting of casing 1 has the spring 7 with push rod dish 4 swing joint, and spring 7 is located the surface of push rod 3.

In the scheme of the embodiment, the sealing assembly 6 is mainly used for enhancing the overall sealing performance and avoiding influencing the stability of the output force of the air chamber.

It should be noted that, in this embodiment, for strengthening overall structure's stability, the equal fixed mounting all around of casing 1 and lid 2 inside has one end to run through and extend to the outside gag lever post 8 of push rod dish 4, and push rod dish 4 inside all around sets up the spacing hole with 8 size looks adaptations of gag lever posts, can avoid push rod dish 4 to take place the skew and rock.

Compared with the prior art: through setting up seal assembly 6, strengthened holistic leakproofness greatly, avoided influencing the stability of air chamber output power to cause the braking effect to descend, through setting up gag lever post 8, can effectively avoid push rod dish 4 to take place to squint and rock, improve holistic stability, do benefit to the use of reality.

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 an automobile-used brake chamber assembly, includes casing (1), lid (2) and seal assembly (6), its characterized in that: a push rod (3) with one end penetrating through the shell (1) and extending into the cover body (2) is movably mounted on the left side of the shell (1), a push rod disc (4) is fixedly mounted on the right side of the push rod (3), and diaphragms (5) are fixedly mounted on the periphery of the outer surface of the push rod disc (4);

seal assembly (6) include sealing washer (601), the surface movable mounting of casing (1) and lid (2) has sealing washer (601), all movable mounting all around of sealing washer (601) surface has one end to run through and extend to inside bolt (602) of casing (1) and lid (2), fixed slot (603) have been seted up to the inside left side of casing (1), the inside movable mounting of fixed slot (603) has bearing seal (604) with push rod (3) swing joint.

2. A brake chamber assembly for a vehicle as defined in claim 1, wherein: the quantity of bolt (602) is a plurality of and is the equidistance and distributes around sealing washer (601) surface, casing (1) passes through sealing washer (601) and lid (2) fixed connection.

3. A brake chamber assembly for a vehicle as defined in claim 2, wherein: thread grooves are formed in the periphery of the outer surfaces of the shell (1) and the cover body (2), and the bolt (602) is in threaded connection with the thread grooves.

4. A brake chamber assembly for a vehicle as defined in claim 1, wherein: the left side of the shell (1) is provided with a movable hole matched with the push rod (3) in size, and the fixed groove (603) is located on the periphery of the movable hole.

5. A brake chamber assembly for a vehicle as defined in claim 1, wherein: the left side fixed mounting of casing (1) inside has spring (7) with push rod dish (4) swing joint, spring (7) are located the surface of push rod (3).

6. A brake chamber assembly for a vehicle as defined in claim 1, wherein: the push rod plate is characterized in that limiting rods (8) with one ends penetrating through and extending to the outside of the push rod plate (4) are fixedly mounted on the periphery of the inner portions of the shell (1) and the cover body (2).

7. A brake chamber assembly for a vehicle as defined in claim 6, wherein: and limiting holes matched with the limiting rods (8) in size are formed in the periphery of the inner part of the push rod disc (4).

8. A brake chamber assembly for a vehicle as defined in claim 1, wherein: the left side of the push rod (3) is fixedly provided with a connecting block (9), and the middle of the right side of the cover body (2) is fixedly provided with a brake valve air outlet pipe (10).