Brake chamber device with pressure test connector
By installing a baffle, diaphragm, and pressure sensor in the brake chamber, the diaphragm status can be monitored in real time, solving the problem of unstable braking performance caused by diaphragm wear and improving the safety of the braking system.
Patent Information
- Application Number
- CN202520718661.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-16
AI Technical Summary
If the diaphragm in the brake chamber is displaced due to wear or deformation, it will affect the braking effect and pose a safety hazard.
Design a brake chamber device with a built-in pressure test connector. By setting a baffle, diaphragm, spring and pressure sensor in the brake chamber, the device uses high-pressure gas to squeeze the diaphragm to detect pressure changes and monitor the diaphragm status in real time.
It enables real-time monitoring of diaphragm wear, reduces safety hazards, and ensures the stability and safety of braking performance.
Smart Images

Figure CN223890980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of brake chamber devices, specifically to a brake chamber device with a built-in pressure test connector. Background Technology
[0002] A brake chamber is a key component in the braking system of cars, trucks, or other vehicles, responsible for converting air pressure into mechanical force. When the driver presses the brake pedal, the braking system releases compressed air into the brake chamber, increasing the pressure. This pressure causes a piston or other mechanical device within the chamber to move, applying braking force to the camshaft in the vehicle's braking mechanism. This rotation of the camshaft achieves braking, slowing the vehicle down or bringing it to a stop.
[0003] Over time and with repeated use, the diaphragm inside the brake chamber will gradually fail due to friction and wear. When the internal diaphragm is worn or deformed, its position will change, thus affecting the braking effect.
[0004] If continued use at this point, safety hazards will arise. Therefore, a brake chamber device with a built-in pressure test connector is proposed. Utility Model Content
[0005] The purpose of this invention is to solve the problem of diaphragm displacement affecting braking performance. This invention provides a brake chamber device with a built-in pressure test connector.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] A brake chamber device with a built-in pressure test connector includes a brake chamber shell. A partition is fixedly installed inside the brake chamber shell, and a movable hole is formed on the side of the partition. A first air inlet pipe and a second air inlet pipe are fixedly installed on the sides of the brake chamber shell corresponding to both sides of the partition. A first diaphragm and a second diaphragm are fixedly arranged inside the brake chamber shell corresponding to both sides of the partition. A handbrake guide rod is fixedly installed at one end of the first diaphragm, extending to the outside of the brake chamber shell. A first spring is fixedly installed on the side of the first diaphragm, with the end of the first spring away from the first diaphragm fixedly installed on the inside of the brake chamber shell. A connecting rod is fixedly installed at the end of the first diaphragm away from the handbrake guide rod. The rod, with its connecting rod process movable hole extending to the side of the second diaphragm, has a brake guide rod fixedly installed at one end of the second diaphragm. The brake guide rod extends to the outer side of the brake chamber housing. An installation cavity is opened on the inner side of the brake chamber housing. A fixed installation box is set inside the installation cavity. A third spring is fixedly installed inside the installation box. A pressing block is movably installed inside the installation box. One end of the pressing block is fixedly connected to one end of the third spring. A pressing structure for pressing the pressing block is set on one side of the second diaphragm. A pressure sensor is fixedly installed on the inner side of the installation box. A second spring is fixedly installed at one end of the second diaphragm. The end of the second spring away from the second diaphragm is fixedly installed on the inner side of the brake chamber housing.
[0008] Furthermore, the pressing structure includes a connecting ring fixedly installed at one end of the extrusion block and a guide extrusion rod fixedly installed at the corresponding connecting ring position of the second diaphragm.
[0009] Furthermore, the mounting box has a U-shaped annulus cross-section, the pressure sensor is located in the inner ring of the third spring, and the compression block is a circular ring.
[0010] Furthermore, reinforcing ribs are fixedly installed on the outer side of the brake chamber shell at positions corresponding to the first and second diaphragms.
[0011] Furthermore, the partition is fixedly installed on the inner center of the brake chamber housing by welding.
[0012] Furthermore, the guide extrusion rod is an "L"-shaped block.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. When braking is required, high-pressure gas enters the brake chamber housing through the first intake pipe. The gas compresses the second diaphragm, which in turn drives the pressing structure to press the compression block. The compression block moves inside the mounting box, and its movement compresses the pressure sensor. The pressure inside the brake chamber housing is detected by the distance the compression block moves. After sensing the pressure, the pressure sensor transmits the pressure signal to the vehicle interior to notify the operator that the second diaphragm is in normal working condition. When the second diaphragm wears down, its position changes, and the pressure on the pressure sensor also changes, allowing for timely monitoring of the second diaphragm's condition and reducing the occurrence of safety hazards and accidents. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a side sectional view of the present invention;
[0017] Figure 3 This is a utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0018] Reference numerals: 1. Brake chamber housing; 2. Partition plate; 3. Movable hole; 41. First air intake pipe; 42. Second air intake pipe; 51. First diaphragm; 52. Second diaphragm; 6. Handbrake guide rod; 7. First spring; 8. Connecting rod; 9. Second spring; 10. Brake guide rod; 11. Mounting cavity; 12. Mounting box; 13. Extrusion block; 14. Connecting ring; 15. Third spring; 16. Pressure sensor transmitter; 17. Guide extrusion rod; Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] like Figures 1 to 3 As shown, a brake chamber device with a built-in pressure test connector includes a brake chamber shell 1. A partition 2 is fixedly installed inside the brake chamber shell 1. The partition 2 is fixedly installed at the center of the inner side of the brake chamber shell 1 by welding. A movable hole 3 is provided on the side of the partition 2. A first air inlet pipe 41 and a second air inlet pipe 42 are fixedly installed on the side of the brake chamber shell 1 corresponding to both sides of the partition 2. A first diaphragm 51 and a second diaphragm 52 are fixedly arranged inside the brake chamber shell 1 corresponding to both sides of the partition 2. A handbrake guide rod 6 is fixedly installed at one end of the first diaphragm 51, extending to the outside of the brake chamber shell 1. A first spring 7 is fixedly installed on the side of the first diaphragm 51. The end of the first spring 7 away from the first diaphragm 51 is fixedly installed inside the brake chamber shell 1. A connecting rod 8 is fixedly installed at the end of the first diaphragm 51 away from the handbrake guide rod 6. The connecting rod 8 extends through the movable hole 3 to the first air inlet pipe 41. On the side of the second diaphragm 52, a brake guide rod 10 is fixedly installed at one end of the second diaphragm 52. The brake guide rod 10 extends to the outside of the brake chamber housing 1. An installation cavity 11 is opened on the inside of the brake chamber housing 11. A fixed installation box 12 is arranged inside the installation cavity 11. A third spring 15 is fixedly installed inside the installation box 12. A pressing block 13 is movably installed inside the installation box 12. One end of the pressing block 13 is fixedly connected to one end of the third spring 15. A pressing structure for pressing the pressing block 13 is provided on one side of the second diaphragm 52. A pressure sensor 16 is fixedly installed on the inside of the installation box 12. A second spring 9 is fixedly installed at one end of the second diaphragm 52. The end of the second spring 9 away from the second diaphragm 52 is fixedly installed on the inside of the brake chamber housing 1. The pressure sensor 16 is prior art and will not be described in detail here. The first diaphragm 51 and the second diaphragm 52 are prior art and will not be described in detail here. In use...
[0024] It should be noted that when braking is required, high-pressure gas enters the brake chamber housing 1 through the first intake pipe 41. The gas compresses the second diaphragm 52, which in turn drives the pressing structure to press the compression block 13. The compression block 13 moves inside the mounting box 12, and after moving, it compresses the pressure sensor 16. The pressure inside the brake chamber housing 1 is detected by the distance the compression block 13 moves. After sensing the pressure, the pressure sensor 16 transmits the pressure signal to the vehicle interior to notify the operator that the second diaphragm 52 is in a normal working state. The outer side of the brake chamber housing 1 corresponds to the first diaphragm. Reinforcing ribs are fixedly installed at the positions of sheet 51 and the second diaphragm 52. The pressing structure includes a connecting ring 14 fixedly installed at one end of the pressing block 13 and a guide pressing rod 17 fixedly installed at the position of the connecting ring 14 corresponding to the second diaphragm 52. The guide pressing rod 17 is an "L"-shaped block. The second diaphragm 52 drives the guide pressing rod 17 to move, and the guide pressing rod 17 presses the connecting ring 14. The connecting ring 14 drives the pressing block 13 to move. The mounting box 12 has a "U"-shaped ring in cross section. The pressure sensor 16 is set in the inner ring of the third spring 15. The pressing block 13 is a circular ring. The pressing block 13 simultaneously presses the third spring 15 and the pressure sensor 16.
[0025] In summary: During use, when braking is required, high-pressure gas enters the brake chamber housing 1 through the first intake pipe 41. The gas compresses the second diaphragm 52, which in turn drives the pressing structure to press the compression block 13. The compression block 13 moves inside the mounting box 12, and after moving, it compresses the pressure sensor 16. The pressure inside the brake chamber housing 1 is detected by the distance the compression block 13 moves. After sensing the pressure, the pressure sensor 16 transmits the pressure signal to the inside of the vehicle to notify the operator that the second diaphragm 52 is in a normal working state. The second diaphragm 52 drives the guide compression rod 17 to move, which in turn compresses the connecting ring 14. The connecting ring 14 drives the compression block 13 to move, and the compression block 13 simultaneously compresses the third spring 15 and the pressure sensor 16.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A brake chamber device with a built-in pressure test connector, comprising a brake chamber shell (1), a partition (2) fixedly installed inside the brake chamber shell (1), a movable hole (3) opened on the side of the partition (2), a first air inlet pipe (41) and a second air inlet pipe (42) fixedly installed on the side of the brake chamber shell (1) corresponding to the two sides of the partition (2), a fixed first diaphragm (51) and a second diaphragm (52) fixedly arranged inside the brake chamber shell (1) corresponding to the two sides of the partition (2), a handbrake guide rod (6) fixedly installed at one end of the first diaphragm (51), the handbrake guide rod (6) extending to the outside of the brake chamber shell (1), the first diaphragm A first spring (7) is fixedly installed on the side of (51). The end of the first spring (7) away from the first diaphragm (51) is fixedly installed on the inner side of the brake chamber housing (1). A connecting rod (8) is fixedly installed on the end of the first diaphragm (51) away from the handbrake guide rod (6). The connecting rod (8) extends through the process movement hole (3) to the second diaphragm. On the side of (52), a brake guide rod (10) is fixedly installed at one end of the second diaphragm (52), the brake guide rod (10) extends to the outside of the brake chamber housing (1), characterized in that, The inner side of the brake chamber housing (1) is provided with an installation cavity (11). The installation cavity (11) is provided with a fixed installation box (12). The installation box (12) is fixedly installed with a third spring (15). The installation box (12) is movably installed with a compression block (13). One end of the compression block (13) is fixedly connected to one end of the third spring (15). One side of the second diaphragm (52) is provided with a pressing structure for squeezing the compression block (13). The inner side of the installation box (12) is fixedly installed with a pressure sensor (16). One end of the second diaphragm (52) is fixedly installed with a second spring (9). The end of the second spring (9) away from the second diaphragm (52) is fixedly installed on the inner side of the brake chamber housing (1).
2. The brake chamber device with integrated pressure testing connector according to claim 1, characterized in that, The pressing structure includes a connecting ring (14) fixedly installed at one end of the pressing block (13) and a guide pressing rod (17) fixedly installed at the position of the connecting ring (14) on the second diaphragm (52).
3. The brake chamber device with integrated pressure testing connector according to claim 1, characterized in that, The mounting box (12) has a U-shaped ring in cross section, the pressure sensor (16) is located in the inner ring of the third spring (15), and the compression block (13) is a circular ring.
4. A brake chamber device with a built-in pressure testing connector according to claim 1, characterized in that, Reinforcing ribs are fixedly installed on the outer side of the brake chamber shell (1) at positions corresponding to the first diaphragm (51) and the second diaphragm (52).
5. A brake chamber device with a built-in pressure testing connector according to claim 1, characterized in that, The partition (2) is fixedly installed on the inner center of the brake chamber shell (1) by welding.
6. A brake chamber device with a built-in pressure testing connector according to claim 2, characterized in that, The guide extrusion rod (17) is an "L" shaped block.