Shell of brake chamber

Abstract

The utility model relates to the technical field of brake chambers, in particular to an outer shell of a brake chamber, which comprises a clamping side cover, a stainless steel outer shell and a top clamping cover, a stainless steel inner shell is sleeved in the stainless steel outer shell, and a polyurethane elastic layer is arranged between the stainless steel inner shell and the stainless steel outer shell. A piston is arranged in the stainless steel inner shell; the bottom of the piston is connected to the inner bottom of the stainless steel outer shell through a supporting spring; a top clamping cover is clamped to the top of the stainless steel outer shell, an embedded sealing block is installed at the bottom of the top clamping cover through screws and embedded into the stainless steel inner shell, a reserved hole is formed in the top of the top clamping cover, and a guide sleeve is arranged in the reserved hole in a sleeved mode. And the polyurethane elastic layer between the two layers of stainless steel shell structures is utilized, so that the piston has a buffering effect in the moving process, and the vibration phenomenon caused by unstable air pressure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brake air chambers, in particular to a shell of a brake air chamber. Background Art

[0002] The brake chamber, also known as the slave cylinder, is a device composed of an air inlet, a cover, a diaphragm, a support plate, a return spring, a housing, a push rod, a connecting fork, a clamp and bolts. Its main function is to convert the pressure of compressed air into a mechanical force that rotates the brake camshaft to achieve braking action. The structure and function of the brake chamber are crucial in the vehicle braking system and are important components to ensure the safe driving of the vehicle. The outer shell of the brake chamber is an important component of the brake chamber.

[0003] The existing outer shell of the brake air chamber has low overall strength and poor anti-deformation effect, and cannot provide the piston with a buffering effect during movement, thereby failing to reduce vibration caused by unstable air pressure. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a brake air chamber shell, which utilizes a polyurethane elastic layer between a double-layer stainless steel shell structure to provide a buffering effect for the piston during movement, thereby reducing vibration caused by unstable air pressure.

[0005] The technical solution adopted by the utility model to solve the technical problem is a brake air chamber shell, comprising a clamping side cover, a stainless steel shell and a top clamping cover, wherein a stainless steel inner shell is sleeved inside the stainless steel shell and a polyurethane elastic layer is arranged between the stainless steel inner shell and the stainless steel outer shell, a piston is arranged inside the stainless steel inner shell and the bottom of the piston is connected to the inner bottom of the stainless steel shell through a supporting spring;

[0006] A top snap-fit ​​cover is snapped onto the top of the stainless steel outer shell, an embedded sealing block is installed on the bottom of the top snap-fit ​​cover by screws and the embedded sealing block is embedded in the stainless steel inner shell, a reserved hole is provided on the top of the top snap-fit ​​cover and a guide sleeve is provided in the reserved hole, the top of the piston is connected to a piston rod through an enlarged connecting disk and the piston rod passes through the guide sleeve.

[0007] By adopting the above technical solution and a double-layer stainless steel shell structure, the overall strength and anti-deformation effect are greatly improved. The polyurethane elastic layer between the double-layer stainless steel shell structure is utilized to give the piston a buffering effect during movement, thereby reducing vibration caused by unstable air pressure.

[0008] Specifically, an air inlet and an air outlet are respectively arranged on both sides of the top of the stainless steel outer shell, and the air inlet and the air outlet are both connected to the stainless steel inner shell.

[0009] By adopting the above technical solution, the air inlet is conveniently connected to the air inlet pipe, and the air outlet is conveniently connected to the exhaust pipe.

[0010] Specifically, a clamping side cover is installed on one side of the stainless steel shell by bolts.

[0011] Specifically, both ends of the support spring are connected to the piston and the stainless steel housing respectively through connecting plates and screws.

[0012] Specifically, the top snap-fit ​​cover is fixed to the top of the stainless steel housing by means of locking bolts.

[0013] Specifically, the embedded sealing block is made of PP material, and the stainless steel outer shell and the stainless steel inner shell both have rectangular cross-sections.

[0014] By adopting the above technical solution, the PP material has high elasticity, good toughness, high adhesion effect, corrosion resistance, not easy to damage, and durability.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model discloses a brake air chamber shell, wherein the bottom embedded sealing block of the top snap-fit ​​cover is embedded in the stainless steel inner shell, thereby greatly improving the sealing performance of the connection between the stainless steel shell and the top snap-fit ​​cover, and achieving a significant anti-leakage effect. The air inlet is convenient for connecting the air inlet pipe, and the air outlet is convenient for connecting the exhaust pipe. When gas is introduced into the air inlet pipe, the air pressure in the top air cavity is increased, so that the piston drives the piston rod to move downward. When the gas in the upper chamber is discharged from the air outlet, the air pressure in the top air cavity is reduced, so that the piston drives the piston rod to move upward.

[0017] (2) The outer shell of the brake air chamber described in the utility model adopts a double-layer stainless steel shell structure, which greatly improves the overall strength and anti-deformation effect. The polyurethane elastic layer between the double-layer stainless steel shell structure is used to make the piston have a buffering effect during movement, thereby reducing the vibration caused by unstable air pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a bottom view of the utility model;

[0021] Figure 3 For this utility model Figure 1 Schematic diagram of the structure at point A.

[0022] In the figure: 1. snap-fit ​​side cover; 2. stainless steel outer shell; 3. air inlet; 4. embedded sealing block; 5. top snap-fit ​​cover; 6. guide sleeve; 7. rubber sealing ring; 8. piston rod; 9. locking bolt; 10. air outlet; 11. enlarged connecting plate; 12. piston; 13. support spring; 14. connecting piece; 15. polyurethane elastic layer; 16. stainless steel inner shell. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] The polyurethane elastic layer 15 between the double-layer stainless steel shell structure is used to provide a buffering effect to the piston 12 during movement, thereby reducing vibration caused by unstable air pressure. Figure 1-3 As shown, the housing of a brake air chamber described in the utility model comprises a snap-fit ​​side cover 1, a stainless steel housing 2 and a top snap-fit ​​cover 5, wherein a stainless steel inner housing 16 is sleeved in the stainless steel housing 2 and a polyurethane elastic layer 15 is arranged between the stainless steel inner housing 16 and the stainless steel housing 2, a piston 12 is arranged in the stainless steel inner housing 16 and the bottom of the piston 12 is connected to the inner bottom of the stainless steel housing 2 through a support spring 13;

[0025] A top snap-fit ​​cover 5 is snap-fitted to the top of the stainless steel outer shell 2, an embedded sealing block 4 is installed on the bottom of the top snap-fit ​​cover 5 by screws, and the embedded sealing block 4 is embedded in the stainless steel inner shell 16, a reserved hole is provided at the top of the top snap-fit ​​cover 5, and a guide sleeve 6 is sleeved in the reserved hole, and the top of the piston 12 is connected to a piston rod 8 through an enlarged connecting plate 11, and the piston rod 8 passes through the guide sleeve 6.

[0026] When in use, a double-layer stainless steel shell structure is adopted to greatly improve the overall strength and anti-deformation effect. The polyurethane elastic layer 15 between the double-layer stainless steel shell structure is utilized to make the piston 12 have a buffering effect during movement, thereby reducing the vibration caused by unstable air pressure.

[0027] For example, Figure 1 , 3 As shown, the utility model also includes that an air inlet 3 and an air outlet 10 are respectively provided on both sides of the top of the stainless steel outer shell 2, and the air inlet 3 and the air outlet 10 are both connected to the stainless steel inner shell 16.

[0028] When in use, the air inlet 3 is conveniently connected to the air inlet pipe, and the air outlet 10 is conveniently connected to the exhaust pipe.

[0029] For example, Figure 1 As shown, the utility model also includes that a snap-fit ​​side cover 1 is installed on one side of the stainless steel housing 2 by bolts.

[0030] When in use, the side cover 1 is engaged to seal the stainless steel housing 2 .

[0031] For example, Figure 1 As shown, the utility model also includes that both ends of the support spring 13 are respectively connected to the piston 12 and the stainless steel housing 2 through a connecting piece 14 and a screw.

[0032] When in use, the support spring 13 is easily installed and removed through the connecting piece 14 and the screw.

[0033] For example, Figure 1 As shown, the utility model also includes that the top snap-fit ​​cover 5 is fixed to the top of the stainless steel housing 2 by means of locking bolts 9 .

[0034] When in use, the locking bolt 9 is used to facilitate installation and disassembly, saving manpower and material resources.

[0035] For example, Figure 1 , 3 As shown, the utility model also includes that the embedded sealing block 4 is specifically made of PP material, and the stainless steel outer shell 2 and the stainless steel inner shell 16 are both rectangular cross-sections.

[0036] When in use, PP material has high elasticity, good toughness, high adhesion effect, corrosion resistance, not easy to damage, and durable.

[0037] When the utility model is in use, the bottom embedded sealing block 4 of the top snap-fit ​​cover 5 is embedded in the stainless steel inner shell 16, which greatly improves the sealing performance of the connection between the stainless steel outer shell 2 and the top snap-fit ​​cover 5, and has a significant anti-leakage effect;

[0038] The air inlet 3 is convenient for connecting the air inlet pipe, and the air outlet 10 is convenient for connecting the air outlet pipe. When the air inlet pipe is passed with gas, the air pressure in the top air cavity is increased, so that the piston 12 drives the piston rod 8 to move downward. When the gas in the upper chamber is discharged from the air outlet 10, the air pressure in the top air cavity is reduced, so that the piston 12 drives the piston rod 8 to move upward.

[0039] The double-layer stainless steel shell structure is adopted to greatly improve the overall strength and anti-deformation effect. The polyurethane elastic layer 15 between the double-layer stainless steel shell structure is used to make the piston 12 have a buffering effect during the movement, thereby reducing the vibration caused by unstable air pressure.

[0040] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the present utility model, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection;

[0042] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A housing of a brake air chamber, characterized in that: The invention comprises a snap-fit ​​side cover (1), a stainless steel outer shell (2) and a top snap-fit ​​cover (5); a stainless steel inner shell (16) is provided inside the stainless steel outer shell (2), a polyurethane elastic layer (15) is provided between the stainless steel inner shell (16) and the stainless steel outer shell (2), a piston (12) is provided inside the stainless steel inner shell (16), and the bottom of the piston (12) is connected to the inner bottom of the stainless steel outer shell (2) via a support spring (13); The top of the stainless steel outer shell (2) is engaged with a top engaging cover (5), the bottom of the top engaging cover (5) is installed with an embedded sealing block (4) by means of screws, and the embedded sealing block (4) is embedded in the stainless steel inner shell (16), the top of the top engaging cover (5) is provided with a reserved hole, and a guide sleeve (6) is sleeved in the reserved hole, and the top of the piston (12) is connected to a piston rod (8) by means of an enlarged connecting plate (11), and the piston rod (8) passes through the guide sleeve (6).

2. A brake chamber housing according to claim 1, characterized in that: An air inlet (3) and an air outlet (10) are respectively arranged on both sides of the top of the stainless steel outer shell (2), and the air inlet (3) and the air outlet (10) are both connected to the stainless steel inner shell (16).

3. The housing of a brake chamber according to claim 1, characterized in that: A snap-fit ​​side cover (1) is mounted on one side of the stainless steel housing (2) via bolts.

4. A brake chamber housing according to claim 1, characterized in that: Both ends of the support spring (13) are respectively connected to the piston (12) and the stainless steel housing (2) via connecting sheets (14) and screws.

5. The housing of a brake chamber according to claim 1, characterized in that: The top snap-fit ​​cover (5) is fixed to the top of the stainless steel housing (2) via locking bolts (9).

6. The housing of a brake chamber according to claim 1, characterized in that: The embedded sealing block (4) is specifically made of PP material, and the stainless steel outer shell (2) and the stainless steel inner shell (16) both have rectangular cross-sections.

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