CN215370703U

CN215370703U - Special brake air chamber for truck

Info

Publication number: CN215370703U
Application number: CN202121856216.XU
Authority: CN
Inventors: 徐兴明
Original assignee: Zhejiang Shenghao Machinery Co ltd
Current assignee: Zhejiang Shenghao Machinery Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2021-12-31
Anticipated expiration: 2031-08-10

Abstract

The utility model discloses a special brake chamber for a truck, which comprises a brake chamber, wherein a rubber diaphragm is arranged in the brake chamber, the rubber diaphragm divides the inner space of the brake chamber into a balance cavity and a spring chamber, a push rod is arranged in the middle of one side, close to the spring chamber, of the rubber diaphragm, the other end of the push rod penetrates through the outer side of the brake chamber, a reset spring is sleeved between the push rod and the inner wall of the spring chamber in the middle of the outer surface of the push rod, a top fixing seat is arranged on one side, outside the brake chamber, of the push rod, and a bottom fixing seat is arranged on the outer surface of the brake chamber at the joint of the push rod and the brake chamber. Has the advantages that: through the design of bottom fixing base, flexible cover, top fixing base to when the push rod activity, can prevent that external dust, grains of sand, water from entering into brake chamber, improve brake chamber's life.

Description

Special brake air chamber for truck

Technical Field

The utility model relates to the technical field of automobiles, in particular to a brake air chamber special for a truck.

Background

The brake air chamber is used for converting the pressure of compressed air into mechanical force for rotating the brake cam shaft to realize braking action. The brake chamber is of a hoop clamping diaphragm type. The front and rear brake chambers are different in size, but are substantially identical in structure.

When the automobile is braked, air enters the brake air chamber from the air inlet, the diaphragm is deformed under the action of air pressure, the push rod is pushed, the brake adjusting arm is driven, the brake cam is rotated, and the brake shoe friction plate is pressed to the brake drum to brake.

However, the use of medium and heavy-duty automobiles has some defects as follows: because the structural design characteristics of the traditional brake air chamber are open, namely the balance chamber of the air chamber communicated with the atmosphere has no protective measures, the balance chamber part is directly provided with a hole on the body and communicated with the atmosphere, and the change of the rear space of the rubber diaphragm causes the air to flow, which brings dust, sand grains, water and the like to influence the service life of the spring and the diaphragm and further cause failure; in wading situations, water entering the chamber is difficult to drain and affects braking performance.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the related art, the utility model provides a special brake chamber for a truck, which aims to overcome the technical problems in the prior related art.

Therefore, the utility model adopts the following specific technical scheme:

the utility model provides a special brake chamber of truck, includes brake chamber, be equipped with the rubber diaphragm in the brake chamber, the rubber diaphragm will brake chamber inner space falls into balanced chamber and spring chamber, the rubber diaphragm is close to spring chamber one side middle part is equipped with the push rod, the other end of push rod runs through to brake chamber's the outside, the surface middle part of push rod just is located the push rod with the cover is equipped with reset spring between the spring chamber inner wall, the push rod is in the outer one side of brake chamber is equipped with the top fixing base, the brake chamber surface just is located the push rod with brake chamber department of meeting is equipped with the bottom fixing base, the top fixing base with connect through the telescope tube between the bottom fixing base, balanced chamber one side be equipped with and run through to the balance hole of brake chamber surface.

Preferably, a connecting pipeline is arranged in the balance hole, the outer surface of the brake chamber is located on the outer side of the balance hole, a fixed cylinder is arranged on the outer side of the balance hole, the connecting pipeline is located in the fixed cylinder, the other end of the connecting pipeline penetrates through the side wall of the fixed cylinder and is wound on the outer surface of the fixed cylinder, an adsorption block is arranged on the outer surface of one side of the balance hole, and a plurality of adsorption grooves matched with the adsorption block are uniformly distributed on the outer surface of the fixed cylinder.

Preferably, a steel wire mesh is arranged inside the telescopic sleeve, and the steel wire mesh is made of steel wires with the diameter of 1.6 mm.

Preferably, the outer surface of the fixed cylinder is provided with an arc-shaped groove matched with the connecting pipeline, and an elastic cushion is arranged in the arc-shaped groove.

Preferably, the adsorption block is a magnet, and the fixing cylinder is made of an iron metal material.

Preferably, the return spring is a compression spring, and spring washers are arranged at two ends of the return spring.

The utility model has the beneficial effects that: through the design of the bottom fixing seat, the telescopic sleeve and the top fixing seat, when the push rod moves, external dust, sand grains and water can be prevented from entering the brake chamber, and the service life of the brake chamber is prolonged; through the design of the steel wire mesh, the strength of the telescopic sleeve is improved, and the telescopic sleeve has elasticity and rigidity; through the design of the connecting pipeline and the fixed cylinder, dust, sand grains and water are prevented from entering a balance cavity of the brake chamber in the vehicle wading process, and the wading performance and the cross-country capacity of the vehicle are improved; through the design of the adsorption groove and the adsorption block, the end part of the pipeline is conveniently and fixedly connected.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a general structure of a truck-specific brake chamber according to an embodiment of the present invention;

FIG. 2 is a schematic side view of a bottom mounting seat of a truck-dedicated brake chamber according to an embodiment of the present invention;

FIG. 3 is a schematic view of an internal structure of a telescopic sleeve of a truck-dedicated brake chamber according to an embodiment of the present invention;

fig. 4 is a schematic view of a connection structure between a connection pipeline of a brake chamber dedicated for a truck and a fixed cylinder according to an embodiment of the utility model.

In the figure:

1. a brake chamber; 2. a rubber diaphragm; 3. a spring chamber; 4. a push rod; 5. a return spring; 6. a bottom fixed seat; 7. a telescopic sleeve; 8. steel wire mesh; 9. a top fixed seat; 10. a balance hole; 11. connecting a pipeline; 12. a fixed cylinder; 13. an adsorption tank; 14. and (5) adsorbing the block.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to an embodiment of the utility model, a truck-specific brake chamber is provided.

In a first embodiment, as shown in fig. 1 to 4, the brake chamber special for trucks according to the embodiment of the present invention includes a brake chamber 1, a rubber diaphragm 2 is disposed in the brake chamber 1, the rubber diaphragm 2 divides an inner space of the brake chamber 1 into a balance cavity and a spring chamber 3, a push rod 4 is disposed in a middle portion of one side of the rubber diaphragm 2 close to the spring chamber 3, the other end of the push rod 4 penetrates through an outer side of the brake chamber 1, a return spring 5 is sleeved between the push rod 4 and an inner wall of the spring chamber 3 in a middle portion of an outer surface of the push rod 4, a top fixing seat 9 is disposed on one side of the push rod 4 outside the brake chamber 1, a bottom fixing seat 6 is disposed at a joint of the push rod 4 and the brake chamber 1 in an outer surface of the brake chamber 1, and the top fixing seat 9 is connected to the bottom fixing seat 6 through a telescopic sleeve 7, and a balance hole 10 penetrating to the outer surface of the brake air chamber 1 is formed in one side of the balance cavity.

Embodiment two, be equipped with connecting line 11 in the

balancing hole

10, 1 surface of brake chamber just is located the outside of balancing hole 10 is equipped with a fixed section of thick bamboo 12, connecting line 11 is located in a fixed section of thick bamboo 12, the other end of connecting line 11 runs through the lateral wall winding of a fixed section of thick bamboo 12 the surface setting of a fixed section of thick bamboo 12, a fixed section of thick bamboo 12 is kept away from balancing hole 10 one side surface is equipped with adsorbs piece 14, a fixed section of thick bamboo 12 surface evenly distributed have a plurality of with adsorb 14 matched with adsorption tank 13. It can be seen from the above design that through the design of the connecting pipeline 11 and the fixed cylinder 12, dust, sand and water are prevented from entering the balance cavity of the brake air chamber 1 during the wading process of the vehicle, and the wading performance and the cross-country capacity of the vehicle are improved.

Embodiment three, the inside wire net 8 that is equipped with of telescopic sleeve 7, wire net 8 adopts the diameter to be 1.6 mm's steel wire, a fixed section of thick bamboo 12 surface be equipped with connecting line 11 matched with arc wall, be equipped with the cushion in the arc wall, adsorb piece 14 and be the magnetite, a fixed section of thick bamboo 12 is made by indisputable metal material, reset spring 5 is compression spring, reset spring 5's both ends all are equipped with spring washer. It can be seen from the above design that the strength of the telescopic sleeve 7 is improved by the design of the steel wire mesh 8, so that the telescopic sleeve 7 has elasticity and rigidity.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In summary, according to the technical scheme of the utility model, when the push rod 4 moves in the brake air chamber 1, the push rod 4 drives the top fixing seat 9 to move synchronously, meanwhile, the top fixing seat 9 stretches the telescopic sleeve 7, the telescopic sleeve 7 stretches and is limited by the steel wire mesh 8, the telescopic sleeve 7 cannot be torn, and the strength of the telescopic sleeve 7 is improved, so that dust, sand and water cannot enter the brake air chamber 1 during the movement of the push rod 4; similarly, when the vehicle passes through a place with a deep water level, the end part of the connecting pipeline 11 can be held by hand, the connecting pipeline 11 is taken out from the fixed cylinder 12, the connecting pipeline 11 is wound on the fixed cylinder 12, the connecting pipeline 11 is connected with the adsorption groove 13 through the adsorption block 14 at the end part, the height of the connecting pipeline 11 is increased, the connecting pipeline 11 is led out to be above the wading depth of the vehicle and then communicated with the atmosphere, so that the situation that dust, sand and water enter a balance cavity of the brake air chamber 1 in the wading process of the vehicle is avoided, and the wading performance and the cross-country capacity of the vehicle are improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The special brake chamber for the truck is characterized by comprising a brake chamber (1), wherein a rubber diaphragm (2) is arranged in the brake chamber (1), the rubber diaphragm (2) divides the inner space of the brake chamber (1) into a balance cavity and a spring chamber (3), the rubber diaphragm (2) is close to the middle of one side of the spring chamber (3) and is provided with a push rod (4), the other end of the push rod (4) penetrates through the outer side of the brake chamber (1), the middle of the outer surface of the push rod (4) is positioned between the push rod (4) and the inner wall of the spring chamber (3) and is sleeved with a reset spring (5), the push rod (4) is provided with a top fixing seat (9) at one outer side of the brake chamber (1), the outer surface of the brake chamber (1) is positioned at the joint of the push rod (4) and the brake chamber (1) and is provided with a bottom fixing seat (6), the top fixing seat (9) is connected with the bottom fixing seat (6) through a telescopic sleeve (7), and a balance hole (10) penetrating through the outer surface of the brake air chamber (1) is formed in one side of the balance cavity.

2. The special brake chamber for the truck according to claim 1, wherein a connecting pipeline (11) is arranged in the balance hole (10), a fixed cylinder (12) is arranged on the outer surface of the brake chamber (1) and located outside the balance hole (10), the connecting pipeline (11) is located in the fixed cylinder (12), the other end of the connecting pipeline (11) penetrates through the side wall of the fixed cylinder (12) and is wound on the outer surface of the fixed cylinder (12), an adsorption block (14) is arranged on the outer surface of one side, away from the balance hole (10), of the fixed cylinder (12), and a plurality of adsorption grooves (13) matched with the adsorption block (14) are uniformly distributed on the outer surface of the fixed cylinder (12).

3. The truck-specific brake chamber according to claim 2, characterized in that a steel wire mesh (8) is arranged inside the telescopic sleeve (7), and the steel wire mesh (8) is made of steel wires with a diameter of 1.6 mm.

4. The truck-dedicated brake chamber according to claim 3, wherein an arc-shaped groove matched with the connecting pipeline (11) is formed in the outer surface of the fixed cylinder (12), and an elastic pad is arranged in the arc-shaped groove.

5. The truck-specific brake chamber according to claim 4, wherein the adsorption block (14) is a magnet, and the fixed cylinder (12) is made of a ferrous metal material.

6. The truck-specific brake chamber according to claim 5, characterized in that the return spring (5) is a compression spring, and spring washers are provided at both ends of the return spring (5).