Manufacturing structure of special-shaped rubber sealing element for vehicle

Abstract

The utility model relates to the technical field of vehicle sealing elements, in particular to a manufacturing structure of a special-shaped vehicle rubber sealing element, which comprises a supporting element, a wrapping body and a first sealing lip, the supporting piece is of an annular structure with an L-shaped cross section; the wrapping body is arranged outside the supporting piece in a wrapping mode. The spring is arranged on the outer side of the third sealing lip in a sleeving mode. The reinforcing net is connected with the first sealing lip and the wrapping body and connected with the second sealing lip and the third sealing lip. The expanding cavity is formed among the first sealing lip, the second sealing lip and the wrapping body; the oil inlet hole is formed between the third sealing lip and the wrapping body, and the oil inlet hole is in through connection with the expanding cavity; by improving the manufacturing structure of the special-shaped rubber sealing element for the vehicle, the special-shaped rubber sealing element for the vehicle has the advantages that the sealing element is pushed by oil pressure for sealing, leakage caused by abrasion is reduced, the reinforcing net is arranged for prolonging, and the tear resistance is good, so that the problems and defects in the prior art and equipment are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle sealing components, and more specifically, to a manufacturing structure of a special-shaped vehicle rubber sealing component. Background Art

[0002] Automotive rubber seals are parts used for sealing in automobiles, mainly made of elastomers. Automotive parts cannot do without rubber, so rubber (seal) products are widely used. In addition to the most visible tire rubber products, a car has many other rubber seal material accessories with different structures, sizes and functions; automotive rubber product accessories account for more than 6% of the total cost of the car; automotive rubber accessories, except for tires, are large items, while other rubber products are small accessories, but they are all installed in key parts, such as the engine, gearbox, axle and other parts of the car, which all need oil seals, but rubber oil seals are the key to ensure the normal operation of these parts, and to ensure the safety and durability of the car.

[0003] Shock absorbers are used in vehicles to absorb road impacts and improve the vehicle's driving stability. The rubber seals in the shock absorbers seal the hydraulic oil. In patent CN201911246860.2, a silicone rubber seal is provided inside the sealing lip so that the sealing lip fits the axial component to prevent leakage caused by wear. However, the elastic sheet is prone to loosening after long-term use, thereby reducing the sealing effect.

[0004] In view of this, research and improvement are conducted on the existing problems, and a manufacturing structure of a special-shaped automotive rubber seal is provided, aiming to achieve the purpose of solving the problem and improving the practical value through this technology. Utility Model Content

[0005] The utility model aims to provide a manufacturing structure of a special-shaped rubber seal for a vehicle, so as to solve the problems and shortcomings raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a manufacturing structure of a special-shaped vehicle rubber seal, which is achieved by the following specific technical means:

[0007] A manufacturing structure of a special-shaped rubber seal for a vehicle, comprising: a support member, a wrapping body, a first sealing lip, a second sealing lip, a third sealing lip, a spring, a reinforcing net, an expansion cavity, and an oil inlet; the support member is an annular structure with a cross section in the shape of the English letter "L"; the wrapping body is wrapped around the outside of the support member; the inner side of the wrapping body is provided with a first sealing lip, a second sealing lip, and a third sealing lip in sequence from top to bottom; the spring is sleeved on the outside of the third sealing lip; the reinforcing net connects the first sealing lip and the wrapping body, and the second sealing lip and the third sealing lip, respectively; the expansion cavity is provided between the first sealing lip, the second sealing lip and the wrapping body; the oil inlet is opened between the third sealing lip and the wrapping body, and the oil inlet is connected with the expansion cavity.

[0008] As a further optimization of the technical solution, in the manufacturing structure of a special-shaped rubber seal for a vehicle of the utility model, the expansion cavity is an annular cavity structure with a rectangular cross-section.

[0009] As a further optimization of the technical solution, the manufacturing structure of the special-shaped rubber seal for a vehicle of the utility model has multiple oil inlet holes.

[0010] As a further optimization of the technical solution, in the manufacturing structure of a special-shaped rubber seal for a vehicle of the utility model, the reinforcing net is a mesh structure made of aramid fibers.

[0011] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0012] 1. The expansion cavity of the utility model is an annular cavity structure with a rectangular cross-section. The oil inlet hole is connected to the expansion cavity. The hydraulic oil enters the expansion cavity through the oil inlet hole. Under the action of pressure, the expansion cavity becomes larger, causing the first sealing lip and the second sealing lip to shrink toward the middle, preventing leakage caused by wear of the first sealing lip and the second sealing lip, and improving the sealing performance of the seal.

[0013] 2. The reinforcing net of the utility model is a mesh structure made of aramid fiber. The reinforcing net connects the first sealing lip and the wrapping body, and the second sealing lip and the third sealing lip respectively. The reinforcing net improves the tear resistance of the first sealing lip, the second sealing lip, and the third sealing lip, and extends the service life of the seal.

[0014] 3. The utility model improves the manufacturing structure of special-shaped rubber seals for vehicles, has the advantages of oil pressure pushing the seals to seal, reducing leakage caused by wear, and setting a reinforcing net to extend the tear resistance, thereby effectively solving the problems and shortcomings in the existing technology and equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0019] In the figure: support member 1, inclusion body 2, first sealing lip 3, second sealing lip 4, third sealing lip 5, spring 6, reinforcing net 7, expansion cavity 8, oil inlet hole 9. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figures 1 to 3 The utility model provides a specific technical implementation scheme of a manufacturing structure of a special-shaped rubber seal for a vehicle:

[0022] A manufacturing structure of a special-shaped automotive rubber seal, comprising: a support member 1, an enveloping body 2, a first sealing lip 3, a second sealing lip 4, a third sealing lip 5, a spring 6, a reinforcing net 7, an expansion cavity 8, and an oil inlet hole 9; the support member 1 is an annular structure with a cross section in the shape of the English letter "L", which plays a supporting role for the whole; the enveloping body 2 is wrapped and arranged on the outside of the support member 1; the inner side of the enveloping body 2 is provided with a first sealing lip 3, a second sealing lip 4, and a third sealing lip 5 in sequence from top to bottom; the spring 6 is sleeved on the outside of the third sealing lip 5, and the spring 6 makes the third sealing lip 5 contract to improve the sealing performance of the third sealing lip 5; the reinforcing net 7 is a mesh structure made of aramid fiber; the reinforcing net 7 connects the first sealing lip 3 and the enveloping body 2 respectively , the second sealing lip 4 and the third sealing lip 5; the reinforcing net 7 improves the tear resistance of the first sealing lip 3, the second sealing lip 4, and the third sealing lip 5, and prolongs the service life of the seal; the expansion cavity 8 is an annular cavity structure with a rectangular cross-section; the expansion cavity 8 is arranged between the first sealing lip 3, the second sealing lip 4 and the inclusion body 2; the oil inlet hole 9 is opened between the third sealing lip 5 and the inclusion body 2, and the oil inlet hole 9 is connected with the expansion cavity 8; the oil inlet hole 9 is opened in multiple places; the hydraulic oil enters the expansion cavity 8 through the oil inlet hole 9, and the expansion cavity 8 becomes larger under the action of pressure, so that the first sealing lip 3 and the second sealing lip 4 gather toward the middle, prevent leakage caused by wear of the first sealing lip 3 and the second sealing lip 4, and improve the sealing performance of the seal.

[0023] Specific implementation steps:

[0024] When in use, the rubber seal is installed in the automobile shock absorber. The third sealing lip 5 is pressed against the side wall of the shock absorber under the elastic force of the spring 6. When under pressure, the hydraulic oil enters the expansion cavity 8 through the oil inlet hole 9. The expansion cavity 8 is deformed under the pressure of the hydraulic oil, so that the first sealing lip 3 and the second sealing lip 4 shrink toward the middle and press against the side wall of the shock absorber to prevent gaps caused by wear and ensure the sealing effect. The reinforcing net 7 improves the tear resistance of the first sealing lip 3, the second sealing lip 4, and the third sealing lip 5, thereby extending the service life of the seal.

[0025] To sum up: the manufacturing structure of the special-shaped rubber seal for vehicles is that the expansion cavity is an annular cavity structure with a rectangular cross-section, and the oil inlet hole is connected to the expansion cavity. The hydraulic oil enters the expansion cavity through the oil inlet hole. Under the action of pressure, the expansion cavity becomes larger, so that the first sealing lip and the second sealing lip shrink toward the middle, preventing leakage caused by wear of the first sealing lip and the second sealing lip, and improving the sealing performance of the seal; the through-type reinforcement net is a mesh structure made of aramid fiber, and the reinforcement net connects the first sealing lip and the wrapping body, the second sealing lip and the third sealing lip respectively. The reinforcement net improves the tear resistance of the first sealing lip, the second sealing lip and the third sealing lip, and extends the service life of the seal; the utility model improves the manufacturing structure of the special-shaped rubber seal for vehicles, has the advantages of oil pressure driving the seal to seal, reducing leakage caused by wear, and setting a reinforcement net to extend the tear resistance, thereby effectively solving the problems and shortcomings in the existing technology and equipment.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manufacturing structure of a special-shaped rubber seal for a vehicle, comprising: A support member (1), an enveloping body (2), a first sealing lip (3), a second sealing lip (4), a third sealing lip (5), a spring (6), a reinforcing net (7), an expansion cavity (8), and an oil inlet hole (9); characterized in that: the support member (1) is an annular structure with a cross section in the shape of the English letter "L"; the enveloping body (2) is arranged on the outside of the support member (1); the inner side of the enveloping body (2) is provided with a first sealing lip (3), a second sealing lip (4), and a third sealing lip (5) in sequence from top to bottom; the spring (6) is sleeved on the outer side of the third sealing lip (5); the reinforcing net (7) respectively connects the first sealing lip (3) and the enveloping body (2), and the second sealing lip (4) and the third sealing lip (5); the expansion cavity (8) is arranged between the first sealing lip (3), the second sealing lip (4) and the enveloping body (2); the oil inlet hole (9) is opened between the third sealing lip (5) and the enveloping body (2), and the oil inlet hole (9) and the expansion cavity (8) are connected through.

2. The manufacturing structure of a special-shaped rubber seal for a vehicle according to claim 1, characterized in that: The expansion cavity (8) is an annular cavity structure with a rectangular cross section.

3. The manufacturing structure of a special-shaped rubber seal for a vehicle according to claim 1, characterized in that: The oil inlet holes (9) are provided at multiple locations.

4. The manufacturing structure of a special-shaped rubber seal for a vehicle according to claim 1, characterized in that: The reinforcing net (7) is a net-like structure made of aramid fibers.

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