Butterfly-shaped gasket with opening
By designing the open butterfly washer and the wavy rolling groove, the problems of long loading and unloading time and insufficient contact friction in the prior art are solved, and rapid assembly and disassembly and firmer connection are achieved.
Patent Information
- Application Number
- CN202422080306.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The annular structure of the existing butterfly washer requires the complete removal of the nut during loading and unloading, which increases loading and unloading time, and the smooth surface structure leads to insufficient contact friction.
An open butterfly washer is designed, the main body includes an outer protruding surface and an inner concave surface, and a group of wavy rolling grooves are provided, and a through hole is provided in the middle position, the open communication through holes, and bolts penetrate through holes to realize the free entry and exit of the butterfly washer.
The butterfly washer can be quickly assembled and removed through the open structure, improving assembly and disassembly efficiency, and increasing contact friction through the wavy rolling groove, enhancing the stability and safety of the connection.
Smart Images
Figure CN223004300U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of washers, in particular to an open butterfly washer. Background Art
[0002] A washer is a metal or non-metal material placed under a nut, bolt, or fastener, mainly used to prevent leakage or looseness caused by vibration. In addition, they also help to distribute the pressure applied to the hole or joint. A butterfly washer is a type of washer. Butterfly washers are used for the connection of medium or high-strength bolts and screws. After the bolt and screw are connected, they play a compensating role in preventing the relaxation of the tensile force, the wear and creep of vulnerable parts, the thermal expansion and contraction, and the pressing of the seal.
[0003] The existing butterfly washers are of a ring structure. When installing or disassembling the butterfly washers, the nut needs to be completely removed, which increases the installation and disassembly time and reduces the installation and disassembly efficiency. Most of the butterfly washers have a smooth surface structure, and the contact friction needs to be improved. Content of the Utility Model
[0004] The purpose of the utility model is to provide an open butterfly washer to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: an open butterfly washer, comprising a butterfly washer main body, a connecting member, a bolt, and a nut. The butterfly washer main body includes an outer convex surface and an inner concave surface. A plurality of groups of first rolling grooves are arranged on the outer convex surface, and a plurality of groups of second rolling grooves are arranged on the inner concave surface. An opening is formed on the butterfly washer main body. The bolt and the nut are used to connect two groups of the connecting members. The nut is threadedly sleeved on the bolt, and the butterfly washer main body is located between the nut and the connecting member.
[0006] Among them, a plurality of groups of the first rolling grooves are all arranged in a wavy structure.
[0007] Among them, a plurality of groups of the second rolling grooves are all arranged in a wavy structure.
[0008] Among them, a plurality of groups of the first rolling grooves are evenly distributed at intervals along the circumferential direction of the outer convex surface.
[0009] Among them, a plurality of groups of the second rolling grooves are evenly distributed at intervals along the circumferential direction of the inner concave surface.
[0010] Among them, a through hole is arranged at the middle position of the butterfly washer main body.
[0011] Among them, the opening communicates with the through hole of the butterfly washer main body.
[0012] Among them, the bolt penetrates through the through hole of the butterfly washer main body.
[0013] Wherein, one side surface of the disc spring washer body is in close contact with the connecting member, and the other side surface of the disc spring washer body is in close contact with the nut.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] 1. The disc spring washer of the present utility model is provided with an opening structure. When installing and disassembling the disc spring washer, it can be assembled or withdrawn through the opening, realizing the free entry and exit of the disc spring washer, and quickly assembling the disc spring washer at the designated position.
[0016] 2. When installing and disassembling the disc spring washer of the present utility model, only the nut needs to be slightly loosened. After the nut is loosened, the disc spring washer can be assembled at the designated position or withdrawn and removed through the opening of the disc spring washer. During the entire assembly process, by tightening or loosening a few threads of the nut, the disc spring washer can be installed and disassembled, thereby improving the installation and disassembly efficiency of the disc spring washer.
[0017] 3. The rolling groove of the present utility model is set as a wavy structure, increasing the roughness of the contact surface, thereby increasing the contact friction force between the disc spring washer and the contact member, making it more difficult to loosen and providing a more secure connection. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic side view structure diagram of one side of the disc spring washer body of the present utility model;
[0019] Figure 2 It is a schematic side view structure diagram of the other side of the disc spring washer body of the present utility model;
[0020] Figure 3 It is a cross-sectional view of the disc spring washer body of the present utility model;
[0021] Figure 4 It is an installation schematic diagram of the disc spring washer body of the present utility model.
[0022] In the figure: 1. Disc spring washer body; 2. Connecting member; 3. Bolt; 4. Nut; 11. Outer convex surface; 12. Inner concave surface; 13. First rolling groove; 14. Second rolling groove; 15. Opening. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0024] Please refer to Figures 1-4 For this utility model, a technical solution is provided: an opening butterfly washer, which includes a butterfly washer main body 1, a connecting member 2, a bolt 3 and a nut 4. The butterfly washer main body 1 includes an outer convex surface 11 and an inner concave surface 12. The butterfly washer main body 1 can provide elasticity and compressive force to prevent the bolt 3 and the nut 4 from vibrating. Multiple groups of first rolling grooves 13 are provided on the outer convex surface 11, and multiple groups of second rolling grooves 14 are provided on the inner concave surface 12. An opening 15 is formed on the butterfly washer main body 1. The bolt 3 and the nut 4 are used to connect two groups of connecting members 2. The nut 4 is threadedly sleeved on the bolt 3. The butterfly washer main body 1 is located between the nut 4 and the connecting member 2.
[0025] Among them, the butterfly washer main body 1 is provided with an opening 15 structure. When installing and disassembling the butterfly washer main body 1, assembly or withdrawal can be carried out through the opening 15, realizing the free entry and exit of the butterfly washer main body 1, and quickly assembling the butterfly washer main body 1 at the designated position;
[0026] When installing and disassembling the butterfly washer main body 1, only need to slightly loosen the nut 4. After the nut 4 is loosened, then through the opening 15 of the butterfly washer main body 1, the butterfly washer main body 1 is assembled at the designated position. During the entire assembly process, tightening or loosening a few threads of the nut 4 can install and disassemble the butterfly washer main body 1, thereby improving the installation and disassembly efficiency of the butterfly washer main body 1.
[0027] Among them, multiple groups of first rolling grooves 13 on the outer convex surface 11 increase the contact friction between the outer convex surface 11 and the contact member, and multiple groups of second rolling grooves 14 on the inner concave surface 12 increase the contact friction between the inner concave surface 12 and the contact member. In this way, the contact friction between the butterfly washer main body 1 and the contact member is increased, the contact friction with the nut 4 can be increased, making it more difficult to loosen and providing a more secure connection.
[0028] Among them, multiple groups of first rolling grooves 13 are all set to a wavy structure.
[0029] Among them, multiple groups of second rolling grooves 14 are all set to a wavy structure.
[0030] Among them, the multiple groups of first rolling grooves 13 with a wavy structure have better anti-slip performance than the straight groove structure, and the multiple groups of second rolling grooves 14 with a wavy structure have better anti-slip performance than the straight groove structure, enabling the butterfly washer main body 1 to have stronger anti-slip performance, thereby further increasing the contact friction between the butterfly washer main body 1 and the contact member, further increasing the contact friction with the nut 4, preventing self-loosening, and maintaining the stability and safety of the connection.
[0031] Among them, multiple groups of first rolling grooves 13 are evenly distributed at intervals along the circumferential direction of the outer convex surface 11, and the multiple groups of first rolling grooves 13 increase the roughness of the contact surface of the outer convex surface 11.
[0032] Among them, multiple groups of second rolling grooves 14 are evenly distributed at intervals along the circumferential direction of the concave surface 12, and the multiple groups of second rolling grooves 14 increase the roughness of the contact surface of the concave surface 12.
[0033] Among them, a through hole is provided at the middle position of the butterfly washer body 1.
[0034] Among them, the opening 15 communicates with the through hole of the butterfly washer body 1, and the free entry and exit of the butterfly washer body 1 are realized through the opening 15 of the butterfly washer body 1.
[0035] Among them, the bolt 3 passes through the through hole of the butterfly washer body 1.
[0036] Among them, one side surface of the butterfly washer body 1 is in close contact with the connecting member 2, and the contact friction force between the butterfly washer body 1 and the connecting member 2 is increased through multiple groups of rolling grooves. The other side surface of the butterfly washer body 1 is in close contact with the nut 4, and the contact friction force between the butterfly washer body 1 and the nut 4 is increased through multiple groups of rolling grooves.
[0037] Working principle: The bolt 3 and the nut 4 are used to connect two groups of connecting members 2. The nut 4 is threadedly sleeved on the bolt 3. The butterfly washer body 1 is located between the nut 4 and the connecting member 2. One side surface of the butterfly washer body 1 is in close contact with the connecting member 2, and the other side surface of the butterfly washer body 1 is in close contact with the nut 4. The surface roughness of the outer convex surface 11 is increased through multiple groups of first rolling grooves 13 on the outer convex surface 11, thereby increasing the contact friction force between the outer convex surface 11 and the contact member. The surface roughness of the concave surface 12 is increased through multiple groups of second rolling grooves 14 on the concave surface 12, thereby increasing the contact friction force between the concave surface 12 and the contact member, preventing self-loosening, and maintaining the stability and safety of the connection. When installing and disassembling the butterfly washer body 1, only need to slightly loosen the nut 4. After the nut 4 is loosened, then through the opening 15 of the butterfly washer body 1, the butterfly washer body 1 is assembled at the designated position or withdrawn and removed.
[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An open butterfly washer, comprising a butterfly washer body (1), a connecting member (2), a bolt (3) and a nut (4), characterized in that: The butterfly washer body (1) comprises an outer convex surface (11) and an inner concave surface (12); the outer convex surface (11) is provided with a plurality of first rolling grooves (13); the inner concave surface (12) is provided with a plurality of second rolling grooves (14); an opening (15) is provided on the butterfly washer body (1); the bolt (3) and the nut (4) are used to connect the two groups of connecting components (2); the nut (4) is threadedly sleeved on the bolt (3); and the butterfly washer body (1) is located between the nut (4) and the connecting component (2).
2. The open butterfly washer according to claim 1, characterized in that: The plurality of groups of the first rolling grooves (13) are all arranged in a wave-shaped structure.
3. The open butterfly washer according to claim 1, characterized in that: The plurality of groups of the second rolling grooves (14) are all arranged in a wave-shaped structure.
4. The open butterfly washer according to claim 1, characterized in that: The plurality of groups of the first rolling grooves (13) are evenly spaced and distributed along the circumferential direction of the outer convex surface (11).
5. The open butterfly washer according to claim 1, characterized in that: The plurality of groups of the second rolling grooves (14) are evenly spaced and distributed along the circumferential direction of the inner concave surface (12).
6. The open butterfly washer according to claim 1, characterized in that: A through hole is provided in the middle of the butterfly washer body (1).
7. The open butterfly washer according to claim 6, characterized in that: The opening (15) is connected to the through hole of the butterfly washer body (1).
8. The open butterfly washer according to claim 6, characterized in that: The bolt (3) passes through the through hole of the butterfly washer body (1).
9. The open butterfly washer according to claim 1, characterized in that: One side surface of the butterfly washer body (1) is in close contact with the connecting member (2), and the other side surface of the butterfly washer body (1) is in close contact with the nut (4).