CN218235914U - Internal hasp type spring brake air chamber - Google Patents

Abstract

The utility model discloses an inner hasp type spring brake air chamber, which comprises a shell, wherein a connecting groove is arranged in the shell, and a fixing plate is connected to the inner side of the connecting groove in a sliding manner; fixed plate internal weld has fixed cover, the inboard sliding connection of fixed cover has branch, the branch outside can be dismantled and be connected with return spring, the piston is installed to the fixed plate inboard, the piston left side can be dismantled and be connected with return spring, the one end that the piston was kept away from to the fixed plate is installed the push rod. The utility model discloses a corrosion-resistant layer, wearing layer, enhancement layer and galvanizing coat of installation, the corrosion-resistant layer of casing outside spraying is formed by acrylic acid polyurethane lacquer spraying, has fine corrosion resisting property, and the inside integrated into one piece of casing has the enhancement layer to be made by the carbon steel, has higher intensity, and the wearing layer of enhancement layer one side is made by high manganese steel simultaneously, and is outer strong in hard, not only wear-resisting but also shock-resistant to improve the intensity and the wear resistance of spring brake air chamber casing.

Description

Internal hasp type spring brake air chamber

Technical Field

The utility model relates to the technical field of auto-parts, in particular to interior hasp formula spring brake air chamber.

Background

The spring brake air chamber is a part of a vehicle brake system, is generally arranged on a drive axle of a vehicle and is used for providing braking torque for the vehicle, and the combined spring brake air chamber is used for providing braking driving force for a wheel brake and consists of two parts: the diaphragm cavity is used for service braking; the spring cavity is used for auxiliary braking and parking braking, and is characterized by having an over-travel function and being provided with a mechanical brake releasing device.

Patent number 201220403259.7 discloses a spring brake chamber, and the device has add netted oil groove through the axle sleeve inner periphery in the middle of the guiding hole, and lubricating oil can be stored in netted oil groove, makes the direction position remain good lubrication throughout to effective increase of service life.

The existing spring brake air chamber has the following defects: during the use, the stability of spring brake chamber's push rod when removing is relatively poor, and inconvenient resets the piston simultaneously, influences the use.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide an interior hasp formula spring brake air chamber can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an inner snap-on type spring brake air chamber comprises a shell, wherein a connecting groove is formed in the shell, and a fixing plate is connected to the inner side of the connecting groove in a sliding mode; fixed plate internal weld has fixed cover, the inboard sliding connection of fixed cover has branch, the branch outside can be dismantled and be connected with return spring, the piston is installed to the fixed plate inboard, the piston left side can be dismantled and be connected with return spring, the one end that the piston was kept away from to the fixed plate is installed the push rod, casing left side surface is provided with the connecting hole, the inside left side of casing can be dismantled and be connected with sealed pipe box, the inside integrated into one piece of casing has the enhancement layer.

Further, a corrosion-resistant layer A is sprayed on the surface of the shell, a wear-resistant layer is integrally formed on the inner side of the reinforcing layer, and a zinc coating is electroplated on the inner side of the wear-resistant layer; through the corrosion-resistant layer A, the corrosion resistance of the shell is improved.

Furthermore, a guide sleeve is detachably connected to a joint of the shell and the push rod; the guide sleeve is arranged to guide the push rod.

Further, the wear-resistant layer is made of high manganese steel, and the reinforcing layer is made of carbon steel; through wearing layer and the enhancement layer that sets up, improve the intensity and the wear resistance of casing.

Furthermore, the inner side of the fixed sleeve is matched with the support rod; through the fixed cover and the branch of installation, improve the stability that the inboard piston of fixed plate removed.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a branch of installation, reset spring, return spring, fixed plate and sealed sleeve, during the use, it is inside that gaseous entering casing through the connecting hole, the inside atmospheric pressure of casing promotes the piston of fixed plate one side and removes in sealed pipe box afterwards, then the return spring of the inside left side installation of casing begins to compress, the fixed plate slides in the spread groove of the inboard setting of casing simultaneously, the fixed cover of installation slides in the branch outside in the fixed plate, then the return spring in the branch outside begins to compress, stability when the push rod that improves piston fixing plate one side removed, when gaseous from the casing internal discharge, reset spring drives the piston and removes, the return spring in the branch outside drives the fixed plate and removes simultaneously, thereby improve the speed that the piston resets, improve spring brake chamber's work efficiency.

2. The utility model discloses a corrosion-resistant layer, wearing layer, enhancement layer and galvanizing coat of installation, during the use, the corrosion-resistant layer of casing outside spraying is formed by acrylic acid polyurethane lacquer spraying, has fine corrosion resisting property, and the inside integrated into one piece of casing has the enhancement layer to be made by the carbon steel, has higher intensity, and the wearing layer of enhancement layer one side is made by high manganese steel simultaneously, and is strong in outer hard, not only wear-resisting but also shock-resistant to improve the intensity and the wearability of casing.

Drawings

Fig. 1 is a schematic view of the overall structure of an inner snap-fit type spring brake chamber of the present invention;

fig. 2 is a schematic view of the internal structure of an internal snap-on spring brake chamber of the present invention;

fig. 3 is a schematic view of a sectional structure of a housing of an inner snap-fit type spring brake chamber of the present invention;

in the figure: 1. connecting holes; 2. a housing; 3. a guide sleeve; 4. a push rod; 5. a return spring; 6. sealing the pipe sleeve; 7. a return spring; 8. connecting grooves; 9. a strut; 10. fixing a sleeve; 11. a piston; 12. a fixing plate; 13. a corrosion-resistant layer; 14. a reinforcing layer; 15. a wear resistant layer; 16. and (4) galvanizing the layer.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

As shown in fig. 1-3, an inner snap-on spring brake air chamber comprises a housing 2, wherein a connecting groove 8 is arranged inside the housing 2, and a fixing plate 12 is slidably connected to the inner side of the connecting groove 8; fixed plate 12 internal weld has fixed cover 10, the inboard sliding connection of fixed cover 10 has branch 9, branch 9 outside can be dismantled and is connected with return spring 5, piston 11 is installed to fixed plate 12 inboard, piston 11 left side can be dismantled and is connected with return spring 7, the one end that piston 11 was kept away from to fixed plate 12 is installed push rod 4, 2 left side surfaces of casing are provided with connecting hole 1, 2 inside left sides of casing can be dismantled and be connected with sealed pipe box 6, 2 inside integrated into one piece of casing have enhancement layer 14.

The surface of the shell 2 is sprayed with a corrosion-resistant layer A13, the inner side of the reinforcing layer 14 is integrally formed with a wear-resistant layer 15, and the inner side of the wear-resistant layer 15 is electroplated with a zinc-plated layer 16; the corrosion resistance of the housing 2 is improved by the corrosion-resistant layer a 13.

Wherein, a joint of the shell 2 and the push rod 4 is detachably connected with a guide sleeve 3; the push rod 4 is guided by the installed guide sleeve 3.

Wherein the wear resistant layer 15 is made of high manganese steel and the reinforcing layer 14 is made of carbon steel; the strength and the wear resistance of the shell 2 are improved by the arranged wear-resistant layer 15 and the reinforcing layer 14.

Wherein, the inner side of the fixed sleeve 10 is matched with the support rod 9; the stability of the movement of the piston 11 inside the fixed plate 12 is improved by the fixed sleeve 10 and the supporting rod 9.

It should be noted that, the utility model relates to an interior hasp formula spring brake air chamber, during the use, it is gaseous inside 2 that get into the casing through connecting hole 1, the inside atmospheric pressure of casing 2 promotes the piston 11 of fixed plate 12 one side and removes in sealed pipe box 6 afterwards, then the return spring 5 of the inside left side installation of casing 2 begins to compress, fixed plate 12 slides in the spread groove 8 that casing 2 inboard set up simultaneously, the fixed cover 10 of installation slides in the fixed plate 12 outside branch 9, then the return spring 5 in the branch 9 outside begins to compress, improve the stability when the push rod 4 of piston 11 fixed plate 12 one side removes, when gaseous from casing 2 internal discharge, return spring 7 drives piston 11 and removes, the return spring 5 in the branch 9 outside drives fixed cover 10 upper fixed plate 12 and removes simultaneously, thereby improve the speed that piston 11 resets, improve the work efficiency of spring brake air chamber, the erosion layer 13 of the spraying in the casing 2 outside is formed by the spraying of acrylic acid polyurethane lacquer, has fine corrosion resisting property, the inside integrated into one piece of casing 2 has enhancement layer 14 to be made by carbon steel, have higher intensity, the wearing layer 15 of high manganese steel is made by the corrosion resisting steel simultaneously, thereby the hard-resisting performance of the interior plating of casing, thereby the inboard of the casing 2 improves the wear-resisting layer of the wear-resisting of the casing, thereby the inboard of the wear-resisting spring 16 and the inboard of the electroplating shock resistance of the wear-resisting property of the casing, thereby the wear-resisting spring.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. An inner hasp type spring brake air chamber comprises a shell (2), and is characterized in that a connecting groove (8) is formed in the shell (2), and a fixing plate (12) is connected to the inner side of the connecting groove (8) in a sliding mode;

fixed plate (12) internal weld has fixed cover (10), fixed cover (10) inboard sliding connection has branch (9), branch (9) outside can be dismantled and be connected with return spring (5), piston (11) are installed to fixed plate (12) inboard, piston (11) left side can be dismantled and be connected with reset spring (7), fixed plate (12) are kept away from the one end of piston (11) and are installed push rod (4), casing (2) left side surface is provided with connecting hole (1), casing (2) inside left side can be dismantled and be connected with sealed pipe box (6), casing (2) inside integrated into one piece has enhancement layer (14).

2. An inner snap-on spring brake chamber according to claim 1, wherein: the surface of the shell (2) is coated with a corrosion-resistant layer A (13), the inner side of the reinforcing layer (14) is integrally formed with a wear-resistant layer (15), and the inner side of the wear-resistant layer (15) is electroplated with a zinc-plated layer (16).

3. An inner snap-on spring brake chamber according to claim 1, wherein: the joint of the shell (2) and the push rod (4) is detachably connected with a guide sleeve (3).

4. An inner snap-on spring brake chamber according to claim 2, wherein: the wear-resistant layer (15) is made of high manganese steel, and the reinforcing layer (14) is made of carbon steel.

5. An inner snap-on spring brake chamber according to claim 1, wherein: the inner side of the fixed sleeve (10) is matched with the support rod (9).

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