Spring brake chamber with good dustproof performance

Abstract

The utility model discloses a spring brake chamber with good dustproof performance, which comprises a spring brake chamber body, a push rod is mounted on the spring brake chamber body, and a connecting piece is mounted at the upper end of the push rod. The push rod is sleeved with an upper nut, an upper gasket, a rubber sealing ring, a protective cover, a rubber sealing sleeve, a lower gasket and a lower nut at equal intervals in the vertical direction. Abrasion of dust and silt to the push rod and other parts is reduced, normal work of the spring brake chamber is guaranteed, stability and reliability of a brake system are improved, the brake system can be guaranteed to be in a good working state all the time in a complex driving environment, powerful guarantee is provided for driving safety, and the service life of the brake system is prolonged. A multi-layer protection system prolongs the service life of the spring brake air chamber and reduces the frequency of replacing the air chamber, so that the use cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of spring brake chamber technology, and in particular to a spring brake chamber with good dustproof performance. Background Technology

[0002] As a crucial component ensuring driving safety, the performance of a car's braking system directly impacts the lives of its occupants. The spring brake chamber, a core component of the braking system, plays a vital role in both service and parking braking. It is typically mounted on the car's drive axle and uses compressed air to pressurize a pushrod, thereby braking the wheels.

[0003] However, traditional spring brake chambers face numerous challenges in practical use. The driving environment for automobiles is complex and diverse; dust from city roads and mud from rural dirt roads inevitably come into contact with the spring brake chamber. The pushrod area, in particular, is more prone to accumulating dust and mud due to its movement. Once this dust and mud enter the chamber, they form abrasive particles between the pushrod and other components, significantly increasing friction. Over time, this increased wear not only affects the normal operation of the chamber and reduces braking efficiency but can also lead to braking system malfunctions, posing a serious threat to driving safety. Therefore, we propose a spring brake chamber with excellent dustproof performance to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a spring brake chamber with good dustproof performance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A spring brake chamber with good dustproof performance includes a spring brake chamber body, a push rod is installed on the spring brake chamber body, a connector is installed on the upper end of the push rod, and an upper nut, an upper washer, a rubber sealing ring, a protective cover, a rubber sealing sleeve, a lower washer and a lower nut are equally spaced along the vertical direction on the push rod.

[0007] Preferably, the protective cover has a first mounting hole, the rubber sealing sleeve has a second mounting hole, and the push rod passes through the first mounting hole and the second mounting hole.

[0008] Preferably, the rubber sealing sleeve is fitted inside the protective cover, and the lower end of the rubber sealing ring abuts against the upper end of the protective cover.

[0009] Preferably, the push rod is provided with external threads, and both the upper nut and the lower nut are provided with threaded through holes. The threaded through holes are screwed onto the external threads. The upper washer abuts against the upper end of the rubber sealing ring, the upper nut abuts against the upper end of the upper washer, the lower washer abuts against the top of the rubber sealing sleeve, and the lower nut abuts against the upper end of the lower washer.

[0010] Preferably, the mounting component has two connection holes.

[0011] Preferably, the push rod is made of a high-strength alloy material.

[0012] In this utility model:

[0013] 1. Brake triggering: When the driver presses the brake pedal or performs a parking operation, the control system delivers compressed air to the spring brake chamber, causing a change in the pressure inside the chamber.

[0014] 2. Push rod movement: Under the action of compressed air, the piston in the spring brake chamber pushes the push rod to reciprocate. The movement of the push rod is transmitted to the braking mechanism through the connecting parts, thereby realizing the braking of the wheels;

[0015] 3. Protective Operation: During the movement of the push rod, the protective cover and rubber sealing sleeve move together with the push rod. The protective cover is always fastened to the push rod, acting as a barrier to block external dust and sand from entering the spring brake air chamber. The rubber sealing ring seals the moving parts of the push rod, further preventing dust intrusion. The internal rubber sealing sleeve further enhances the sealing performance of the protection, forming a multi-layered protection system. This reduces the wear of dust and sand on the push rod and other components, improves the working stability and reliability of the air chamber, and significantly extends the service life of the spring brake air chamber due to reduced component wear, reducing the frequency of air chamber replacement and saving operating costs.

[0016] 4. Brake release: When the driver releases the brake pedal, the control system stops supplying compressed air to the spring brake chamber, the pressure in the chamber returns to normal, and the push rod returns to its initial position under the action of the spring, thus releasing the brake.

[0017] This utility model has the following advantages:

[0018] 1. It reduces the wear of dust and mud on the push rod and other components, ensures the normal operation of the spring brake chamber, improves the stability and reliability of the braking system, and ensures that the braking system is always in good working condition in complex driving environments, providing strong protection for driving safety.

[0019] 2. The multi-layered protection system extends the service life of the spring brake chamber and reduces the frequency of chamber replacement, thereby saving operating costs. At the same time, due to the improved reliability of the braking system, the risk of accidents caused by brake failure is reduced, and potential maintenance and compensation costs are lowered.

[0020] 3. Due to reduced wear on components, the service life of the spring brake chamber is significantly extended. Users do not need to replace the chamber frequently, which reduces maintenance costs and downtime, and improves the vehicle's operating efficiency.

[0021] In summary, this invention reduces the wear of dust and mud on the push rod and other components, ensures the normal operation of the spring brake chamber, improves the stability and reliability of the braking system, and ensures that the braking system is always in good working condition in complex driving environments, providing strong protection for driving safety. The multi-layered protection system extends the service life of the spring brake chamber, reduces the frequency of chamber replacement, and thus saves on operating costs. Attached Figure Description

[0022] Figure 1 This is a structural diagram of the present invention;

[0023] Figure 2 This is a structural diagram of the present invention;

[0024] Figure 3 This is a structural diagram of the push rod of this utility model.

[0025] In the diagram: 1 Upper gasket, 2 Connector, 3 Upper nut, 4 Rubber sealing ring, 5 Lower gasket, 6 First mounting hole, 7 Protective cover, 8 Second mounting hole, 9 Rubber sealing sleeve, 10 Lower nut, 11 External thread, 12 Push rod, 13 Spring brake air chamber body, 14 Connecting hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1-3 A spring brake chamber with good dustproof performance includes a spring brake chamber body 13, a push rod 12 is installed on the spring brake chamber body 13, and a connector 2 is installed on the upper end of the push rod 12. The connector 2 acts as a bridge connecting the push rod 12 and the braking mechanism, so that the movement of the push rod 12 can be accurately transmitted to the braking mechanism. The connector 2 is provided with two connecting holes 14. The two connecting holes 14 can be firmly connected to the braking mechanism by bolts or other connectors to ensure that there is no loosening during the braking process and to ensure the reliability of the braking.

[0028] The push rod 12 is fitted with an upper nut 3, an upper washer 1, a rubber sealing ring 4, a protective cover 7, a rubber sealing sleeve 9, a lower washer 5, and a lower nut 10 at equal intervals along the vertical direction. The tightening action of the upper nut 3 and the lower nut 10 can ensure that the positions of other components are fixed and prevent loosening during movement. The upper washer 1 and the lower washer 5 play a role in buffering and protection, avoiding direct contact between the nut and the rubber components and causing wear.

[0029] The protective cover 7 is provided with a first mounting hole 6, and the rubber sealing sleeve 9 is provided with a second mounting hole 8. The push rod 12 passes through the first mounting hole 6 and the second mounting hole 8. The rubber sealing sleeve 9 is fitted inside the protective cover 7. The lower end of the rubber sealing ring 4 abuts against the upper end of the protective cover 7. The rubber sealing ring 4 seals the moving part of the push rod 12 to further prevent dust from entering.

[0030] The push rod 12 is provided with an external thread 11, and the upper nut 3 and the lower nut 10 are both provided with threaded through holes. The threaded through holes are screwed onto the external thread 11. The upper washer 1 abuts against the upper end of the rubber sealing ring 4, the upper nut 3 abuts against the upper end of the upper washer 1, the lower washer 5 abuts against the top of the rubber sealing sleeve 9, and the lower nut 10 abuts against the upper end of the lower washer 5. The internal rubber sealing sleeve 9 further improves the sealing performance of the protection, forming a multi-layer protection system, reducing the wear of dust and mud on the push rod 12 and other components.

[0031] The mounting part 2 is provided with two connection holes 14. The push rod 12 is made of high-strength alloy material. High-strength alloy material has high strength and good wear resistance, and can withstand the large force generated during braking. This ensures that the push rod 12 will not be deformed or damaged during long-term use, thereby improving the reliability and service life of the entire brake chamber.

[0032] In this utility model:

[0033] 1. Brake triggering: When the driver presses the brake pedal or performs a parking operation, the control system will deliver compressed air to the spring brake chamber 13, causing the pressure in the chamber to change.

[0034] 2. Push rod movement: Under the action of compressed air, the piston in the spring brake chamber body 13 pushes the push rod 12 to reciprocate. The movement of the push rod 12 is transmitted to the braking mechanism through the connecting piece 2, thereby realizing the braking of the wheel;

[0035] 3. Protective Operation: During the movement of the push rod 12, the protective cover 7 and the rubber sealing sleeve 9 move together with the push rod 12. The protective cover 7 is always fastened to the push rod 12, acting as a barrier to block external dust and sand, preventing them from entering the spring brake air chamber 13. The rubber sealing ring 4 seals the moving parts of the push rod 12, further preventing dust intrusion. The internal rubber sealing sleeve 9 further enhances the sealing performance of the protection, forming a multi-layered protection system. This reduces the wear of dust and sand on the push rod 12 and other components, improves the working stability and reliability of the air chamber 13, and significantly extends the service life of the spring brake air chamber 13 due to the reduced wear of components, reducing the frequency of air chamber 13 replacement and saving operating costs.

[0036] 4. Brake release: When the driver releases the brake pedal, the control system stops supplying compressed air to the spring brake chamber 13, the pressure in the chamber returns to normal, and the push rod 12 returns to its initial position under the action of the spring, thus releasing the brake.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A spring brake chamber with good dust performance, comprising a spring brake chamber body (13), characterized in that A push rod (12) is installed on the spring brake air chamber body (13). A connector (2) is installed on the upper end of the push rod (12). An upper nut (3), an upper washer (1), a rubber sealing ring (4), a protective cover (7), a rubber sealing sleeve (9), a lower washer (5), and a lower nut (10) are sleeved on the push rod (12) at equal intervals along the vertical direction.

2. The spring brake chamber with good dustproof performance according to claim 1, characterized in that: The protective cover (7) is provided with a first mounting hole (6), the rubber sealing sleeve (9) is provided with a second mounting hole (8), and the push rod (12) passes through the first mounting hole (6) and the second mounting hole (8).

3. The spring brake chamber with good dustproof performance according to claim 1, characterized in that: The rubber sealing sleeve (9) is fitted inside the protective cover (7), and the lower end of the rubber sealing ring (4) abuts against the upper end of the protective cover (7).

4. The spring brake chamber with good dustproof performance according to claim 1, characterized in that: The push rod (12) is provided with an external thread (11), and the upper nut (3) and the lower nut (10) are both provided with threaded through holes. The threaded through holes are screwed onto the external thread (11). The upper washer (1) abuts against the upper end of the rubber sealing ring (4), the upper nut (3) abuts against the upper end of the upper washer (1), the lower washer (5) abuts against the top of the rubber sealing sleeve (9), and the lower nut (10) abuts against the upper end of the lower washer (5).

5. The spring brake chamber with good dustproof performance according to claim 1, characterized in that: The connector (2) is provided with two connection holes (14).

6. The spring brake chamber with good dustproof performance according to claim 1, characterized in that: The push rod (12) is made of high-strength alloy material.

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