CN220890891U - Brake chamber of internal respiration structure - Google Patents

Abstract

The utility model relates to a brake air chamber of an inner breathing structure, which comprises a shell and the inner breathing structure, wherein the inner breathing structure is arranged in the shell; the inner respiration structure comprises a traveling cavity arranged on the left side of the inside of a shell, a push rod is arranged in the traveling cavity, a push disc is fixedly connected to the right side of the push rod, a membrane is arranged on the right side of the push disc, an air inlet valve is arranged at the top of the left side of the shell, an air outlet valve is arranged at the bottom of the left side of the shell, a filter element is arranged on one side of the outside of the shell, which is close to the air inlet valve, and the filter element comprises a fixing frame, a filter screen, a connecting frame and a bolt, and the fixing frame is fixedly connected to the outside of the shell. This interior respiratory structure's brake chamber sets up interior respiratory structure, breathes in the brake chamber through admission valve, air outlet valve, reduces the parking chamber and gets into air, filters simultaneously, filters the inside air of admission valve, reduces impurity and gets into in the brake chamber.

Description

Brake chamber of internal respiration structure

Technical Field

The utility model relates to the technical field of brake chambers, in particular to a brake chamber with an internal respiration structure.

Background

The brake chamber is a device comprising an air inlet, a cover, a diaphragm, a supporting disc, a return spring, a shell, a push rod, a connecting fork, a clamp hoop, a bolt and the like, and is also called a branch pump, the brake chamber is used for converting the pressure of compressed air into mechanical force for enabling a brake cam shaft to rotate, braking action is realized, the brake chamber is of a clamp hoop clamping diaphragm type, the front brake chamber and the rear brake chamber are different in size, but basically the structure is the same, when an automobile brakes, air enters the brake chamber from the air inlet, the diaphragm deforms under the action of air pressure, the push rod is pushed, the brake adjusting arm is driven, the brake cam is rotated, a brake shoe friction plate is pressed against a brake drum to generate braking, the brake chamber shell and the cover are made of steel plates through stamping and are connected together through the clamp hoop and the bolt to form a whole shell, a clamp cloth rubber diaphragm is arranged between the clamp hoop, the whole shell is separated into two chambers which are mutually completely isolated, the air chamber between the diaphragm and the shell is communicated with a double-cavity brake valve, and the air chamber between the diaphragm and the shell is normally communicated with atmosphere.

According to the piston shaft of the internal breathing brake chamber disclosed by the Chinese patent CN201494433U, when the parking cavity of the brake chamber works, gas in the parking cavity can be compensated and exhausted, meanwhile, the air can be prevented from being mixed with air in the driving cavity and the parking cavity, and the safety of the vehicle is ensured.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides the brake air chamber with the internal breathing structure, which has the advantages of reducing the impurity in the air from entering the dust brake air chamber and the like, and solves the problem that the air is not filtered in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the brake air chamber of the internal respiration structure comprises a shell and the internal respiration structure, wherein the internal respiration structure is arranged in the shell; the inner respiration structure comprises a driving cavity arranged on the left side inside a shell, a push rod is arranged inside the driving cavity, a push disc is fixedly connected to the right side of the push rod, a membrane is arranged on the right side of the push disc, an air inlet valve is arranged at the top of the left side of the shell, an air outlet valve is arranged at the bottom of the left side of the shell, and a filtering piece is arranged on one side, close to the air inlet valve, of the outer side of the shell.

Further, the filter piece is including mount, filter screen, link, bolt, mount fixed connection is in the outside of casing, the inboard sliding connection of mount has the link, link fixed connection is in the inboard of link, bolt threaded connection is in the outside of mount.

Further, the number of the connecting frames is two, the connecting frames are symmetrically distributed, the fixing frame is a cylinder, the air inlet valve is located at the inner side of the fixing frame, and the filter screen is located above the air inlet valve.

Further, the bolt extends to the inside of link, the screw thread groove with bolt size looks adaptation has been seted up to mount, link inside, the top fixedly connected with pull rod of link.

Further, the right side of casing is provided with the parking chamber, the inside in parking chamber is provided with piston assembly, the inside in parking chamber is provided with return spring, the outside of piston assembly is located to return spring cover, return spring's right side fixed connection is in the inner wall of casing.

Further, the push rod extends to the outside of casing, the inside movable hole that has seted up with push rod size looks adaptation of casing, the right side of push disc is laminated with the diaphragm left side.

Further, the air inlet valve and the air outlet valve are arranged on the left side of the membrane, and the air inlet valve and the air outlet valve are symmetrically distributed.

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

This interior respiratory structure's brake chamber sets up interior respiratory structure, breathes in the brake chamber through admission valve, air outlet valve, reduces the parking chamber and gets into air, filters simultaneously, filters the inside air of admission valve, reduces impurity and gets into in the brake chamber.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is an enlarged view of a portion a of fig. 1, which is a structural view of the present utility model.

In the figure: 1 shell, 2 push rod, 3 push disc, 4 driving cavity, 5 diaphragm, 6 admission valve, 7 air outlet valve, 8 filter, 801 mount, 802 filter screen, 803 link, 804 bolt, 9 parking cavity, 10 return spring, 11 piston subassembly.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, a brake chamber of an internal breathing structure in the present embodiment includes a housing 1 and an internal breathing structure, wherein the internal breathing structure is disposed inside the housing 1; the inner respiration structure comprises a traveling cavity 4 arranged on the left side inside a shell 1, a push rod 2 is arranged inside the traveling cavity 4, a push disc 3 is fixedly connected to the right side of the push rod 2, a membrane 5 is arranged on the right side of the push disc 3, an air inlet valve 6 is arranged at the top of the left side of the shell 1, an air outlet valve 7 is arranged at the bottom of the left side of the shell 1, and a filter 8 is arranged on one side, close to the air inlet valve 6, of the outer side of the shell 1.

Wherein, filter 8 is including mount 801, filter screen 802, link 803, bolt 804, mount 801 fixed connection is in the outside of casing 1, the inboard sliding connection of mount 801 has link 803, link 803 fixed connection is in the inboard of link 803, bolt 804 threaded connection is in the outside of mount 801, the quantity of link 803 has two, and be symmetric distribution, mount 801 is the cylinder, intake valve 6 is located the inboard of mount 801, filter screen 802 is located the top of intake valve 6, bolt 804 extends to the inside of link 803, the mount 801, the inside screw thread groove with bolt 804 size looks adaptation of having seted up of link 803, the top fixedly connected with pull rod of link 803.

In addition, the right side of casing 1 is provided with parking chamber 9, the inside in parking chamber 9 is provided with piston assembly 11, the inside in parking chamber 9 is provided with return spring 10, the outside of piston assembly 11 is located to return spring 10 cover, return spring 10's right side fixed connection is in casing 1's inner wall, push rod 2 extends to casing 1's outside, the inside movable hole with push rod 2 size looks adaptation of having seted up of casing 1, push disc 3 right side and the laminating of diaphragm 5 left side, inlet valve 6, air outlet valve 7 all set up in the left side of diaphragm 5, inlet valve 6 and air outlet valve 7 are symmetric distribution.

The working principle of the embodiment is as follows:

The air chamber of the internal respiration structure is characterized in that compressed air enters the interior of a driving cavity 4 through a filter screen 802, under the action of pressure, a diaphragm 5 deforms, the diaphragm 5 drives a push rod 2 to push out, meanwhile, a piston assembly 11 is driven to move, braking torque is generated on an automobile, when the automobile is released from braking, the compressed air in the air chamber is discharged through an air outlet valve 7, and under the action of a return spring 10 after being discharged, the original state is restored.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

Claims (7)

1. The utility model provides a brake chamber of internal respiration structure, includes casing (1) and internal respiration structure, its characterized in that: the inner respiration structure is arranged in the shell (1);

The inner respiration structure comprises a driving cavity (4) arranged on the left side of the inside of a shell (1), a push rod (2) is arranged in the driving cavity (4), a push disc (3) is fixedly connected to the right side of the push rod (2), a membrane (5) is arranged on the right side of the push disc (3), an air inlet valve (6) is arranged at the top of the left side of the shell (1), an air outlet valve (7) is arranged at the bottom of the left side of the shell (1), and a filtering piece (8) is arranged on one side of the outside of the shell (1) and close to the air inlet valve (6).

2. The brake chamber of an internal breathing structure of claim 1, wherein: the filter element (8) comprises a fixing frame (801), a filter screen (802), a connecting frame (803) and a bolt (804), wherein the fixing frame (801) is fixedly connected to the outside of the shell (1), the connecting frame (803) is connected to the inner side of the fixing frame (801) in a sliding mode, the connecting frame (803) is fixedly connected to the inner side of the connecting frame (803), and the bolt (804) is in threaded connection with the outer side of the fixing frame (801).

3. The brake chamber of an internal breathing structure of claim 2, wherein: the number of the connecting frames (803) is two, the connecting frames are symmetrically distributed, the fixing frame (801) is a cylinder, the air inlet valve (6) is located on the inner side of the fixing frame (801), and the filter screen (802) is located above the air inlet valve (6).

4. The brake chamber of an internal breathing structure of claim 2, wherein: the bolt (804) extends to the inside of link (803), screw thread groove with bolt (804) size looks adaptation has been seted up to mount (801), link (803) inside, the top fixedly connected with pull rod of link (803).

5. The brake chamber of an internal breathing structure of claim 1, wherein: the parking device is characterized in that a parking cavity (9) is formed in the right side of the shell (1), a piston assembly (11) is arranged in the parking cavity (9), a return spring (10) is arranged in the parking cavity (9), the return spring (10) is sleeved outside the piston assembly (11), and the right side of the return spring (10) is fixedly connected to the inner wall of the shell (1).

6. The brake chamber of an internal breathing structure of claim 1, wherein: the push rod (2) extends to the outside of casing (1), the inside movable hole that has seted up with push rod (2) size looks adaptation of casing (1), push away the laminating of dish (3) right side and diaphragm (5) left side.

7. The brake chamber of an internal breathing structure of claim 1, wherein: the air inlet valve (6) and the air outlet valve (7) are arranged on the left side of the membrane (5), and the air inlet valve (6) and the air outlet valve (7) are symmetrically distributed.