Anti-loosening bolt for electric power

Abstract

The utility model discloses an electric power anti-loosening bolt which comprises a bolt body, a protective gasket is sleeved outside the bolt body, a nut body is movably connected to the top end of the bolt body in a threaded mode, connecting side plates are fixedly installed on the two sides of the nut body respectively, and fastening assemblies are arranged in the two connecting side plates respectively. And the fastening assembly comprises a supporting plate, a limiting plate, a positioning rod and a fastening spring, the supporting plate is fixedly installed in an inner cavity of the connecting side plate, and the positioning rod is inserted into the supporting plate. The positioning rods on the two sides of the nut body are aligned with the protective gasket to be inserted, at the moment, when vibration is generated outside, the protective gasket is kept stable under the action of the positioning rods and the positioning holes, so that the protective gasket is still in a stable state when being vibrated, the situation that the fixing effect of the whole bolt body is affected due to looseness of the protective gasket is avoided, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to an anti-loosening bolt for electric power. Background Art

[0002] Power bolts are fasteners specifically used in power engineering, primarily to securely connect various electrical devices together to ensure the safe and stable operation of power systems. Power bolts play a vital role in power engineering, and their design and use are subject to strict standards to ensure they can withstand the tremendous mechanical stress and environmental influences of high voltage and high current environments.

[0003] The existing patent publication number is CN213628447U, which discloses a gasket for sealing bolts, including a body, a metal main gasket, a bolt, a locking metal gasket, a rubber gasket, a first groove, a second groove and a through hole; the body is provided with a mounting hole, and the provided mounting hole is used to realize the connection between the body and other components; the metal main gasket is sleeved on the bolt and is provided in sealing contact with the end face of the body when in use; the rubber gasket is fixed in the second groove in the metal main gasket with sealant; the locking metal gasket is provided in the first groove in the metal main gasket; the bolt passes through the locking metal gasket, the metal main gasket and the rubber gasket to be connected with other components; the device of the utility model is reasonably designed and highly practical. The bolt is locked and fixed by providing the locking metal gasket, and the rubber gasket can well realize contact and sealing with the body.

[0004] Existing electrical bolts use protective washers to enhance their securing effectiveness during installation. However, in practice, washers can become loose due to factors such as insufficient tightening, vibration, embedding, gasket creep, thermal expansion, and impact, resulting in a decrease in overall bolt securing effectiveness. To address this issue, we propose an anti-loosening bolt for electrical applications to address these issues. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] Therefore, the purpose of the present invention is to provide an anti-loosening bolt for electric power, which can solve the problem that the fixing effect of the existing electric power bolts is improved by adding protective washers during installation, but in actual use, the washers will become loose due to insufficient tightening, vibration, embedding, gasket creep and thermal expansion, impact, etc., thereby reducing the overall bolt fixing effect.

[0007] In order to solve the above technical problems, the utility model provides an anti-loosening bolt for electric power, which adopts the following technical solution: comprising a bolt body, a protective washer is provided on the outside of the bolt body, a nut body is movably connected to the top of the bolt body through a thread, connecting side plates are fixedly installed on both sides of the nut body, and fastening components are provided inside the two connecting side plates;

[0008] The fastening assembly includes a support plate, a limit plate, a positioning rod and a fastening spring, wherein the support plate is fixedly mounted on the inner cavity of the connecting side plate, a positioning rod is inserted into the interior of the support plate, a limit plate is fixedly mounted on the outside of the positioning rod, the bottom of the limit plate is attached to the bottom of the inner cavity of the connecting side plate, and a fastening spring is sleeved on the outside of the positioning rod, and the fastening spring is located between the bottom of the support plate and the top of the limit plate;

[0009] Two left-right symmetrical positioning holes are provided inside the protective gasket, and the positioning holes are adapted to the positioning rods, and the positioning rods are inserted into the positioning holes through the positioning holes.

[0010] Optionally, a moving block is fixedly installed on the top of the two positioning rods, and a hook is fixedly installed on the top of the two moving blocks.

[0011] Optionally, openings are provided at the tops of the two connecting side plates, and the openings are located directly above the moving block.

[0012] Optionally, a first wedge-shaped washer and a second wedge-shaped washer are sequentially sleeved on the outside of the bolt body from top to bottom, and the first wedge-shaped washer is engaged with the second wedge-shaped washer on a side close to the first wedge-shaped washer.

[0013] Optionally, the surfaces of the bolt body, the nut body, the protective washer, the first wedge-shaped washer and the second wedge-shaped washer are all coated with anti-rust lubricating oil.

[0014] To sum up, the utility model includes at least one of the following beneficial effects: 1. By setting up a fastening component, when the staff installs the nut body and the protective washer on the bolt body, they align the positioning rods on both sides of the nut body with the protective washer and insert them. At this time, when external vibrations are generated, the protective washer is kept stable by the positioning rods and the positioning holes, so that the protective washer remains in a stable state when it is vibrated, thereby avoiding the loosening of the protective washer to affect the fixing effect of the overall bolt body, and the utility model is highly practical.

[0015] 2. By setting a movable block and a hook, when inspecting the protective washer, the staff can use a tool to pull the hook to extract the bottom end of the positioning rod from the positioning hole on the protective washer. At this time, the protective washer can be removed, which is convenient for the staff to replace the protective washer. By setting the first wedge-shaped washer and the second wedge-shaped washer, the adjacent sides of the first wedge-shaped washer and the second wedge-shaped washer bite each other. When vibration occurs, the fine teeth on the surface of the first wedge-shaped washer and the second wedge-shaped washer increase the friction coefficient of the contact surface. The first wedge-shaped washer and the second wedge-shaped washer will engage and lock, thereby increasing the axial preload force of the bolt body and effectively preventing the bolt body from loosening due to vibration.

[0016] 3. By applying anti-rust lubricating oil on the surfaces of the bolt body, nut body, protective washer, first wedge washer and second wedge washer, the above parts can be prevented from oxidation and rust when installed on the surface of power equipment, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the fastening assembly structure of the present utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the internal structure of the fastening assembly of the present invention;

[0021] Figure 4 This is a schematic diagram of the protective gasket structure of the present utility model.

[0022] Explanation of the accompanying drawings: 1. Bolt body; 2. Protective washer; 3. Nut body; 4. Connecting side plate; 5. Fastening assembly; 6. Support plate; 7. Limiting plate; 8. Positioning rod; 9. Fastening spring; 10. Positioning hole; 11. Moving block; 12. Hook; 13. Opening; 14. First wedge washer; 15. Second wedge washer. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-4 The utility model is described in further detail.

[0024] Example 1, refer to Figure 1-4In this embodiment, in order to solve the problem that the fixing effect of the existing power bolts is improved by adding protective washers during installation, but in actual use, the washers may become loose due to insufficient tightening, vibration, embedding, gasket creep, thermal expansion, impact, etc., thereby reducing the overall bolt fixing effect, the utility model discloses an anti-loosening bolt for power.

[0025] It includes a bolt body 1, a protective washer 2 is provided on the outside of the bolt body 1, a nut body 3 is movably connected to the top of the bolt body 1 through a thread, connecting side plates 4 are fixedly installed on both sides of the nut body 3, and fastening components 5 are provided inside the two connecting side plates 4;

[0026] The fastening assembly 5 includes a support plate 6, a limit plate 7, a positioning rod 8 and a fastening spring 9. The support plate 6 is fixedly installed in the inner cavity of the connecting side plate 4. The positioning rod 8 is inserted into the support plate 6. The limit plate 7 is fixedly installed on the outside of the positioning rod 8. The bottom of the limit plate 7 is attached to the bottom of the inner cavity of the connecting side plate 4, and the positioning rod 8 is sleeved with a fastening spring 9 on the outside. The fastening spring 9 is deformed by the structure and provides elastic force to push and tighten. The fastening spring 9 is located between the bottom of the support plate 6 and the top of the limit plate 7.

[0027] There are two left-right symmetrical positioning holes 10 inside the protective gasket 2, which are adapted to the positioning rod 8. The positioning rod 8 is inserted into the positioning hole 10 through the positioning hole 10. A moving block 11 is fixedly installed on the top of the two positioning rods 8, and a hook 12 is fixedly installed on the top of the two moving blocks 11, which can be quickly installed by means of the hook 12.

[0028] An opening 13 is formed on the top of each of the two connecting side panels 4 , and the opening 13 is located directly above the moving block 11 . Through the opening 13 , a worker can easily use a tool to align the hook 12 and lift the positioning rod 8 .

[0029] The outside of the bolt body 1 is sequentially sleeved with a first wedge-shaped washer 14 and a second wedge-shaped washer 15 from top to bottom, and the first wedge-shaped washer 14 and the second wedge-shaped washer 15 are engaged with each other on their adjacent sides; by arranging the first wedge-shaped washer 14 and the second wedge-shaped washer 15, the adjacent sides of the first wedge-shaped washer 14 and the second wedge-shaped washer 15 are engaged with each other, and when vibration occurs, the fine teeth on the surfaces of the first wedge-shaped washer 14 and the second wedge-shaped washer 15 increase the friction coefficient of the contact surface, and the first wedge-shaped washer 14 and the second wedge-shaped washer 15 will engage and lock, thereby increasing the axial preload force of the bolt body 1 and effectively preventing the bolt body 1 from loosening due to vibration.

[0030] The bolt body 1, nut body 3, protective washer 2, first wedge washer 14, and second wedge washer 15 are all coated with rust-proof lubricant. This rust-proof lubricant not only lubricates the bolts but also forms a protective film to prevent oxidation and rust. This lubricant generally has excellent lubrication and rust-proof properties and is suitable for bolts in various electrical equipment.

[0031] The specific working principle is: before installing the bolt body 1 on the surface of the power equipment, the staff first fits the first wedge washer 14 and the second wedge washer 15 on the surface of the threaded hole. After aligning the bolt body 1 with the threaded hole and driving it in, the staff takes out the protective washer 2 and puts it between the outside of the bolt body 1 and the surface of the power equipment. Then, the nut body 3 is aligned with the bolt body 1 for installation. When the nut body 3 is pressed against the protective washer 2, the positioning hole 10 and the positioning rod 8 are aligned with each other. At this time, the positioning rod 8 is inserted into the positioning hole 10 to complete the fixation of the protective washer 2.

[0032] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-loosening bolt for electric power, comprising a bolt body (1), characterized in that: The outer portion of the bolt body (1) is provided with a protective washer (2), the top end of the bolt body (1) is movably connected to a nut body (3) through a thread, and connecting side plates (4) are fixedly installed on both sides of the nut body (3), and fastening components (5) are provided inside the two connecting side plates (4); The fastening assembly (5) comprises a support plate (6), a limiting plate (7), a positioning rod (8) and a fastening spring (9), wherein the support plate (6) is fixedly mounted in the inner cavity of the connecting side plate (4), a positioning rod (8) is inserted into the interior of the support plate (6), and the limiting plate (7) is fixedly mounted on the exterior of the positioning rod (8), the bottom of the limiting plate (7) is attached to the bottom of the inner cavity of the connecting side plate (4), and a fastening spring (9) is sleeved on the exterior of the positioning rod (8), and the fastening spring (9) is located between the bottom of the support plate (6) and the top of the limiting plate (7); Two left-right symmetrical positioning holes (10) are provided inside the protective gasket (2), the positioning holes (10) are adapted to the positioning rods (8), and the positioning rods (8) are inserted into the positioning holes (10) through the positioning holes (10).

2. The anti-loosening bolt for electric power according to claim 1, characterized in that: A moving block (11) is fixedly mounted on the top of each of the two positioning rods (8), and a hook (12) is fixedly mounted on the top of each of the two moving blocks (11).

3. The anti-loosening bolt for electric power according to claim 1, characterized in that: The tops of the two connecting side plates (4) are both provided with openings (13), and the openings (13) are located directly above the moving block (11).

4. The anti-loosening bolt for electric power according to claim 1, characterized in that: A first wedge-shaped washer (14) and a second wedge-shaped washer (15) are sequentially sleeved on the outside of the bolt body (1) from top to bottom, and the first wedge-shaped washer (14) and the second wedge-shaped washer (15) are engaged with each other on a side close to each other.

5. The anti-loosening bolt for electric power according to claim 1, characterized in that: The surfaces of the bolt body (1), the nut body (3), the protective washer (2), the first wedge-shaped washer (14) and the second wedge-shaped washer (15) are all coated with rust-proof lubricating oil.

Images