Shell of wheel cylinder accessory for truck
By introducing a multi-stage sealing mechanism and filter screen into the housing of the brake caliper components in large trucks, the problem of brake fluid sediment deposition has been solved, achieving both sealing and filtration effects, and ensuring the normal operation of the brakes.
Patent Information
- Application Number
- CN202520017513.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Existing brake fluid brake pump components lack the structure required for alcohol ester production and impurity removal, leading to the deposition of sediment in the brake fluid, affecting piston movement and reducing braking performance.
A brake fluid brake fluid manifold housing has been designed, comprising a multi-stage sealing mechanism and a filter screen for filtering out deposits in the brake fluid. The screw-removable filter screen structure ensures both sealing and filtration effectiveness.
It effectively filters out deposits in the brake fluid, preventing them from entering the space between the piston and the housing, improving sealing and friction, and ensuring the normal operation of the brakes.
Smart Images
Figure CN223739920U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of sub -pump accessories for large trucks, and specifically relates to a sub -pump accessory shell for large trucks. BACKGROUND
[0002] The sub -pump accessories for large trucks mainly include brake sub -pump, clutch sub -pump and other key components. These accessories play an important role in the braking and clutch system of the truck, and are crucial to the safety and normal operation of the truck. The brake sub -pump is an important component of the braking system of the truck, which is responsible for converting the pressure of the brake fluid into mechanical force to make the brake of the wheel produce friction, thereby achieving the deceleration or stopping of the vehicle. The clutch sub -pump is a key component in the clutch system of the truck, which assists the driver in controlling the opening and closing of the clutch to ensure the smooth connection and disconnection between the engine and the transmission system.
[0003] The working principle of the brake sub -pump can be summarized as converting the pressure of the brake fluid into mechanical force to drive the brake pad and the brake drum or brake disc to produce friction, thereby achieving the deceleration or stopping of the vehicle. The brake fluid flows through the pipeline to the secondary sub -pump, and the piston in the secondary sub -pump drives the brake shoe to move and cooperate with the brake drum to brake each wheel. However, the flow of brake fluid will carry away the white lubricating grease between the brake master cylinder and the brake sub -pump, and the white lubricating grease will precipitate in the brake fluid to form precipitates. When the brake fluid carrying the precipitates flows into the brake sub -pump housing and is between the piston and the housing, it will cause difficulty in the movement of the piston, thereby reducing the braking performance of the brake. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a sub -pump accessory shell for large trucks, which aims to solve the problem of lack of alcohol ester production conditions and impurity removal structure in the prior art, and cannot collect the structure and products generated by the catalyst, resulting in waste of raw materials.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sub -pump accessory shell for large trucks, comprising a sub -pump housing body, the sub -pump housing body is hollow, a liquid inlet hole is formed on one side of the surface of the sub -pump housing body, a sealing mechanism is installed on the inner wall of the liquid inlet hole, the sealing mechanism is composed of a first sealing ring, a second sealing ring and a third sealing ring, a filter screen is further arranged in the liquid inlet hole, a butt joint block is installed on the inner wall of the liquid inlet hole, a butt joint groove is formed on the surface of the butt joint block, and a screw is installed on the surface of the filter screen.
[0006] As a preferred sub -pump accessory shell for large trucks of the utility model, the first sealing ring, the second sealing ring and the third sealing ring are connected at equal intervals on the inner wall of the liquid inlet hole from top to bottom.
[0007] The size of the first sealing ring, the second sealing ring and the third sealing ring is larger than the size of the internal cavity of the liquid inlet hole.
[0008] The butt joint groove is provided with six circumferential rows on the front end surface of the butt joint block.
[0009] The filter screen is made of metal material and has the same size as the internal cavity of the liquid inlet hole.
[0010] The filter screen is connected with the butt joint block through a screw and is detachably installed on the front end surface of the butt joint block through the screw.
[0011] 1. The use of the filter screen can filter the precipitates in the brake fluid, avoid the precipitates flowing into the pump housing body and being between the piston and the pump housing body, increase the friction of the piston in the pump housing body, and realize the filtering function of the pump accessory housing.
[0012] 2. The use of the sealing mechanism can seal the connection between the liquid inlet hole and the pipeline, avoid dust entering the pump housing body from the connection, and improve the sealing performance of the pump accessory housing. DETAILED DESCRIPTION
[0013] The accompanying drawings are used to provide a further understanding of the present application, constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:
[0014] Fig. 1 is a schematic view of the main structure of the present application;
[0015] Fig. 2 is a schematic view of the main bottom structure of the present application;
[0016] Fig. 3 is a schematic view of the main front structure of the present application;
[0017] Fig. 4 is a schematic view of the filter screen and the butt joint block structure of the present application;
[0018] Fig. 5 is a schematic view of the liquid inlet hole cross-section structure of the present application.
[0019] In the drawings: 1, pump housing body; 2, liquid inlet hole; 3, sealing mechanism; 31, first sealing ring; 32, second sealing ring; 33, third sealing ring; 4, filter screen; 5, butt joint block; 6, butt joint groove; 7, screw. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0021] Please refer to FIGS. 1-5, the present application provides the following technical solutions: a kind of truck with sub-pump accessory shell, including sub-pump shell body 1, sub-pump shell body 1 is hollow, one side of the surface of sub-pump shell body 1 is provided with liquid inlet hole 2, sealing mechanism 3 is installed on the inner wall of liquid inlet hole 2, sealing mechanism 3 is composed of first sealing ring 31, second sealing ring 32 and third sealing ring 33, filter screen 4 is also provided in the inside of liquid inlet hole 2, butt joint block 5 is installed on the inner wall of liquid inlet hole 2, butt joint groove 6 is provided on the surface of butt joint block 5, screw 7 is installed on the surface of filter screen 4.
[0022] Preferably, the first sealing ring 31, the second sealing ring 32 and the third sealing ring 33 are connected at equal intervals on the inner wall of the liquid inlet hole 2 from top to bottom.
[0023] In specific use, the first sealing ring 31, the second sealing ring 32 and the third sealing ring 33 seal the connection of the liquid inlet hole 2 and the pipeline to form multi-stage sealing, thereby improving the sealing performance.
[0024] Preferably, the size of the first sealing ring 31, the second sealing ring 32 and the third sealing ring 33 is larger than the size of the internal cavity of the liquid inlet hole 2.
[0025] In specific use, the first sealing ring 31, the second sealing ring 32 and the third sealing ring 33 seal the connection of the liquid inlet hole 2 and the pipeline, so as to prevent dust from entering the sub-pump shell body 1 from the connection.
[0026] Preferably, the butt joint block 5 is annular, and the butt joint groove 6 is provided with six circumferentially arranged front end surfaces of the butt joint block 5.
[0027] In specific use, the butt joint block 5 limits the installation position of the filter screen 4, and the butt joint groove 6 facilitates cooperation with the screw 7.
[0028] Preferably, the filter screen 4 is made of metal material, and the size of the filter screen 4 is the same as that of the internal cavity of the liquid inlet hole 2.
[0029] In specific use, the filter screen 4 is attached to the inner wall of the liquid inlet hole 2 to avoid the deposition flowing into the pump housing body 1 from the gap.
[0030] Preferably, the filter screen 4 is connected between the screw 7 and the butt block 5 and is detachably installed on the front end surface of the butt block 5 through the screw 7.
[0031] In specific use, when the filter screen 4 is blocked, the filter screen 4 is conveniently disassembled and assembled through the screw 7 for cleaning or replacement.
[0032] Working principle: first, the pump housing body 1 is connected with the piston in the cavity during assembly, the piston is connected with the brake shoe, the liquid inlet hole 2 of the pump housing body 1 is connected with the pipeline from the brake master cylinder, then the first sealing ring 31, the second sealing ring 32 and the third sealing ring 33 seal the gap between the liquid inlet hole 2 and the pipeline to avoid the dust entering the pump housing body 1 from the connection, thereby improving the sealing performance of the pump assembly housing, and when the truck brakes, the brake fluid of the brake master cylinder enters the pump housing body 1 along the pipeline and is filtered by the filter screen 4 to avoid the deposition flowing into the pump housing body 1 between the piston and the pump housing body 1, thereby increasing the friction of the piston in the pump housing body 1, so as to realize the filtering function of the pump assembly housing.
[0033] It should be noted that the filter screen 4 is fixed on the front end surface of the butt block 5 through the screw 7 penetrating the filter screen 4 and the butt groove 6 on the surface of the butt block 5.
[0034] It should be noted that: referring to FIG. 1-5, the installation position of the brake pump, that is, the pump housing body 1, is supplied with brake fluid from the pipeline by the brake master cylinder, and then the brake pump converts the pressure of the brake fluid into mechanical force to drive the piston to extend outward, and the piston drives the brake shoe to move and cooperate with the brake bottom plate to form the brake of the truck wheel.
[0035] Finally, it should be pointed out that the above-mentioned is only the preferred embodiment of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A split pump fitting housing for a heavy duty truck comprising a split pump housing body (1) characterised in that: The sub-pump shell body (1) is hollow, one side of the surface of the sub-pump shell body (1) is provided with a liquid inlet hole (2), the inner wall of the liquid inlet hole (2) is provided with a sealing mechanism (3), the sealing mechanism (3) is composed of a first sealing ring (31), a second sealing ring (32) and a third sealing ring (33); The inside of the liquid inlet hole (2) is also provided with a filter screen (4), the inner wall of the liquid inlet hole (2) is provided with a butt block (5), the surface of the butt block (5) is provided with a butt groove (6), the surface of the filter screen (4) is provided with a screw (7).
2. A split pump fitting housing for a heavy duty truck as defined in claim 1, wherein: The first sealing ring (31), the second sealing ring (32) and the third sealing ring (33) are connected to the inner wall of the liquid inlet hole (2) at equal intervals from top to bottom.
3. A split pump fitting housing for a tractor trailer as defined in claim 1, wherein: The size of the first sealing ring (31), the second sealing ring (32) and the third sealing ring (33) is greater than the size of the internal cavity of the liquid inlet hole (2).
4. A split pump fitting housing for a tractor trailer as defined in claim 1, wherein: The butt block (5) is annular, and the butt groove (6) is provided with six circumferential rows on the front end surface of the butt block (5).
5. A split pump fitting housing for a tractor trailer as defined in claim 1, wherein: The filter screen (4) is made of metal, and the size of the filter screen (4) is the same as the size of the internal cavity of the liquid inlet hole (2).
6. A split pump fitting housing for a tractor trailer as defined in claim 1, wherein: The filter screen (4) is connected between the butt block (5) through the screw (7), and is detachably installed on the front end surface of the butt block (5) through the screw (7).