Electrical equipment grounding bolt fastening device

By designing a protective cover and a brush-type grounding bolt fastening device for electrical equipment, the problem of dust entering the adjusting nut was solved, achieving both durability and convenience of the device.

CN224102837UActive Publication Date: 2026-04-10HEILONGJIANG ZHONGKE ENG MANAGEMENT CONSULTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

When using existing adjustable wrenches in complex environments, dust and debris can easily enter the adjusting nut, causing wear and affecting its service life and ease of use.

Method used

A fastening device was designed that includes an adjustable wrench, a protective cover, a storage block, and a brush. The protective cover covers the adjusting nut to prevent dust from entering, and a rust remover and brush are provided for regular maintenance.

Benefits of technology

It effectively prevents dust from entering the adjusting nut, extends its service life, improves ease of use, and simplifies the maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fastening device for a grounding bolt of electrical equipment, which relates to the technical field of bolt fastening and comprises a movable wrench, an adjusting nut is arranged in the movable wrench, the back surface of the movable wrench is connected with a back plate, the front surface of the movable wrench is connected with a fixing strip, and the outer side of the fixing strip is symmetrically connected with connecting strips. The fixing strip and the back plate are arranged, when the device is not used, the adjusting nut can be covered and sealed through mutual matching of the fixing strip and the back plate, sundries in air are prevented from falling into the adjusting nut and being accumulated, and therefore the service life of the adjusting nut can be effectively guaranteed; in the using process, a worker can rapidly conduct rust removal and maintenance on the outer surfaces of the movable wrench and the adjusting nut through the sponge and the brush, the worker does not need to rustingly find tools, and therefore the using convenience of the device can be effectively guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of bolt fastening technology, and in particular to a grounding bolt fastening device for electrical equipment. Background Technology

[0002] When electrical equipment is operating normally, its insulation layer can prevent current leakage. However, the insulation may fail due to aging, damage, or other reasons, causing leakage. Therefore, there is a risk of electric shock if people come into contact with it. Grounding bolts can connect the equipment to the ground and provide a low-resistance path for leakage current. In order to ensure a reliable electrical connection between the equipment and the grounding system, it is necessary to use an adjustable wrench to tighten the grounding bolts to prevent them from loosening.

[0003] Currently, existing adjustable wrenches require operators to rotate an adjusting nut to adjust the lateral position of the movable jaws, thus meeting the tightening requirements of bolts of different sizes. Due to the complex operating environment of wrenches, a significant amount of dust particles and debris are suspended in the air. When the wrench is idle, this dust and debris enters the adjusting nut. Since the fine dust particles typically have a certain degree of hardness, they cause wear to the adjusting nut over time. Therefore, we propose an electrical equipment grounding bolt tightening device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a grounding bolt fastening device for electrical equipment.

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

[0006] An electrical equipment grounding bolt fastening device includes an adjustable wrench with an adjusting nut inside. A back plate is connected to the back of the adjustable wrench, and a fixing strip is connected to the front of the adjustable wrench. Connecting strips are symmetrically connected to the outer side of the fixing strip. The connecting strips are inserted into the inside of a protective cover. A slider is connected to the side of the connecting strip away from the fixing strip. A connecting groove adapted to the slider is opened inside the protective cover.

[0007] Preferably, one set of the connecting strips has a rectangular groove inside, and the inner wall of the rectangular groove is connected to a first spring. The other end of the first spring is connected to a limiting block, and the side of the protective cover has two sets of positioning grooves that are adapted to the limiting block.

[0008] Preferably, a storage block is connected to the top of the protective cover, and the storage block has two sets of receiving slots inside, one of which is filled with rust remover, and the storage block is covered with a cover plate.

[0009] Preferably, two sides of the receiving block are symmetrically connected with fixing sleeves, and the inner wall of the fixing sleeve is vertically connected with a second spring, and the top end of the second spring is connected through a limiting long strip.

[0010] Preferably, the lower side of the limiting long strip is connected with an embedding block, and the upper side of the cover plate is provided with a limiting slot at the position corresponding to the embedding block.

[0011] Preferably, the inside of one group of the containing grooves is placed with a sponge, and the height of the sponge is lower than the height of the containing groove.

[0012] Preferably, the inside of another group of the containing grooves is provided with a brush, and the upper side of the brush is connected with the lower side of the cover plate.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、 the device through setting has the fixed strip and the backboard, in the idle use this device, through the fixed strip and the backboard's mutual cooperation, can realize the covering seal of the adjusting nut, prevent the sundries in the air from falling into the adjusting nut and accumulate, thereby can effectively guarantee the service life of adjusting nut.

[0015] 2、 the device through setting has the sponge and the brush, in the use process, the staff can utilize the sponge and the brush fast to the movable spanner and the adjusting nut's outer surface carries on the rust removal maintenance, need not the staff's time-consuming and labor-saving tooling and can realize, thereby can effectively guarantee the convenience of this device when using. Schematic drawings

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the electrical equipment grounding bolt fastening device of the utility model;

[0017] Figure 2 It is a three-dimensional structure schematic diagram of the connecting strip and the protective cover structure in Figure 1

[0018] Figure 3 It is a three-dimensional structure schematic diagram of the first spring and the limiting block structure in Figure 1

[0019] Figure 4 It is a three-dimensional structure schematic diagram of the cover plate and the fixed sleeve structure in Figure 1

[0020] Figure 5 It is a three-dimensional structure schematic diagram of the movable spanner and the backboard structure in Figure 1

[0021] ​​​​In the figure: 1, movable wrench; 2, adjusting nut; 3, fixed strip; 4, connecting strip; 5, protective cover; 6, sliding block; 7, first spring; 8, limiting block; 9, storage block; 10, containing groove; 11, sponge; 12, brush; 13, cover plate; 14, fixed sleeve; 15, second spring; 16, limiting long strip; 17, embedded block; 18, back plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Referring to Figures 1-5 An electrical equipment grounding bolt fastening device, comprising a movable wrench 1, the inside of the movable wrench 1 is provided with an adjusting nut 2, the back of the movable wrench 1 is connected with a back plate 18, the front of the movable wrench 1 is connected with a fixed strip 3, and the outer side of the fixed strip 3 is symmetrically connected with a connecting strip 4, the connecting strip 4 is inserted in the inside of a protective cover 5, the side of the connecting strip 4 away from the fixed strip 3 is connected with a sliding block 6, the inside of the protective cover 5 is provided with a connecting groove matched with the sliding block 6, and the longitudinal section of the back plate 18 and the protective cover 5 is provided with a U-shaped structure, so that the protruding adjusting nut 2 can be covered and protected, the protective cover 5 can be conveniently pushed horizontally by the staff through the cooperation of the connecting groove and the sliding block 6, and the adjusting nut 2 can be exposed and adjusted.

[0024] Further, referring to Figure 2 and Figure 4 It can be known that the inside of one of the connecting strips 4 is provided with a rectangular groove, the inner wall of the rectangular groove is connected with a first spring 7, the other end of the first spring 7 is connected with a limiting block 8, and the side edge of the protective cover 5 is provided with two groups of positioning grooves matched with the limiting block 8, in use, the protective cover 5 in the covering process can be horizontally limited by the staff through the arrangement of the two groups of positioning grooves and the limiting block 8, and thus the protection effect of the protective cover 5 on the adjusting nut 2 can be effectively ensured.

[0025] Further, referring to Figure 4 It can be known that the upper side of the protective cover 5 is connected with a storage block 9, the inside of the storage block 9 is provided with two groups of containing grooves 10, the inside of one of the containing grooves 10 is injected with rust remover, and the upper side of the storage block 9 is covered with a cover plate 13, the outer surfaces of the movable wrench 1 and the adjusting nut 2 can be conveniently maintained and rusted by the staff through the rust remover injected in the containing groove 10 subsequently and periodically.

[0026] Further, referring to Figure 4It can be known that the two sides of the receiving block 9 are symmetrically connected with the fixing sleeve 14, and the inner wall of the fixing sleeve 14 is vertically connected with the second spring 15, and the top end of the second spring 15 is connected through the limiting long strip 16. Through the second spring 15 connected between the limiting long strip 16 and the fixing sleeve 14, the vertical movement requirement of the limiting long strip 16 can be met, the tightness of the cover plate 13 covering above the receiving block 9 is ensured, and thus the cover plate 13 can be quickly removed from above the receiving block 9 by the staff.

[0027] Further, referring to Figure 4 It can be known that the lower side of the limiting long strip 16 is connected with the embedded block 17, and the upper side of the cover plate 13 is provided with a limiting groove corresponding to the embedded block 17. When the cover plate 13 covers above the receiving block 9, the embedded block 17 connected to the bottom end of the limiting long strip 16 is clamped into the limiting groove provided in the cover plate 13, so as to limit the cover plate 13, thereby effectively preventing the cover plate 13 from easily sliding, and effectively ensuring the safety of the rust remover stored in the containing groove 10.

[0028] Further, referring to Figure 4 It can be known that the inside of one group of containing grooves 10 is placed with the sponge 11, and the height of the sponge 11 is lower than the height of the containing groove 10. The rust remover can be adsorbed and stored by the sponge 11, so as to facilitate the staff to control the use amount of the rust remover and avoid waste.

[0029] Further, referring to Figure 4 It can be known that the inside of the other group of containing grooves 10 is provided with the brush 12, and the upper side of the brush 12 is connected with the lower side of the cover plate 13. In the use process, the cover plate 13 is connected with the cover plate 13, so that when the staff takes out the cover plate 13 and the brush 12, the brush 12 can be dipped with the rust remover, and then the brush 12 can be brushed on the outside of the adjustable wrench 1 and the adjusting nut 2 for maintenance. Through the setting of the brush 12, the staff can quickly perform the brushing work without the staff needing to find a small brush.

[0030] Working principle: the utility model discloses in use, the staff can first aim movable spanner 1 to the grounding bolt that needs to be fastened, and then through the limit block 8 is pushed, can make its inlay to the inside of connecting strip 4, immediately the staff can pull the protective cover 5 transversely, make it force along the outer wall of connecting strip 4 sliding, and then limit block 8 can be clamped into another set of positioning groove that the protective cover 5 side sets up, at this time adjusting nut 2 can be exposed, and then the staff can rotate adjusting nut 2, so that movable clamp transverse movement clamps bolt, immediately the staff can rotate movable spanner 1, to realize the fastening of ground bolt, after completing the fastening of each group ground bolt, the staff can push the protective cover 5 transversely, make it extrude the limit block 8 of inclined structure and the inside of connecting strip 4 is fast, and then the protective cover 5 can be covered again on the outside of adjusting nut 2, to realize the sealing protection of adjusting nut 2;

[0031] After using for a period of time, the staff can first pull up the limit long strip 16, then the cover plate 13 can be taken off from the upper of the storage block 9, and the brush 12 connected at the bottom of the cover plate 13 is extracted from the inside of the containing groove 10, at this time the staff can insert the brush 12 into the inside of another containing groove 10 and contact with the sponge 11, so that the brush 12 can be dipped with rust remover, and then the staff can use the brush 12 connected at the bottom of the cover plate 13 to brush the rust remover on the outer surface of the movable spanner 1, to realize the maintenance of the movable spanner 1, after the maintenance is completed, the cover plate 13 can be covered again on the upper of the two containing grooves 10, the above is the whole working principle of the utility model.

[0032] In the utility model, the installation mode, connection mode or setting mode of all the components described above are common mechanical modes, and the specific structure, model and coefficient index of all the components are self-contained technologies, as long as the beneficial effects can be achieved, implementation can be carried out, so no more is described.

[0033] The above embodiments are the preferred implementation of the utility model, but the implementation of the utility model is not limited by the above embodiments, any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the utility model, should be equivalent replacement mode, all are included in the protection scope of the utility model.

[0034] In the utility model, in the case that opposite is not made, the orientation words such as " up and down, left and right, front and back, inside and outside and vertical and horizontal " contained in the term only represent the orientation of the term in the normal use state, or the common name understood by the person skilled in the art, and should not be regarded as the limitation of the term, at the same time, the serial nouns such as " first ", " second " and " third " do not represent the specific quantity and order, and are only used for distinguishing the name, and moreover, the term " includes ", " contains " or any other variant thereof is intended to cover non-exclusive containing, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in such process, method, article or equipment.

Claims

1. An electrical equipment ground bolt fastening device comprising a movable spanner (1), characterized in that, The activity spanner (1) is internally provided with an adjusting nut (2), the back of the activity spanner (1) is connected with a back plate (18), the front of the activity spanner (1) is connected with a fixed strip (3), the outer side of the fixed strip (3) is symmetrically connected with a connecting strip (4), the connecting strip (4) is inserted in the inside of a protective cover (5), one side of the connecting strip (4) away from the fixed strip (3) is connected with a sliding block (6), the inside of the protective cover (5) is provided with a connecting groove matched with the sliding block (6).

2. An electrical equipment ground bolt fastening device according to claim 1, wherein, The inside of one group of the connecting strips (4) is provided with a rectangular groove, and the inner wall of the rectangular groove is connected with a first spring (7), the other end of the first spring (7) is connected with a limiting block (8), the side of the protective cover (5) is provided with two groups of positioning grooves matched with the limiting block (8).

3. An electrical equipment ground bolt fastening device according to claim 1, wherein, The top of the protective cover (5) is connected with a receiving block (9), the inside of the receiving block (9) is provided with two groups of containing grooves (10), the inside of one group of the containing grooves (10) is injected with a rust remover, the top of the receiving block (9) is covered with a cover plate (13).

4. An electrical equipment ground bolt fastening device according to claim 3, wherein, The two sides of the receiving block (9) are symmetrically connected with a fixed sleeve (14), and the inner wall of the fixed sleeve (14) is vertically connected with a second spring (15), the top end of the second spring (15) is connected through a limiting long strip (16).

5. An electrical equipment ground bolt fastening device according to claim 4, wherein, The lower side of the limiting long strip (16) is connected with an embedded block (17), the upper side of the cover plate (13) is provided with a limiting groove at the position corresponding to the embedded block (17).

6. An electrical equipment ground bolt fastening device according to claim 3, wherein, The inside of one group of the containing grooves (10) is placed with a sponge (11), and the height of the sponge (11) is lower than the height of the containing groove (10).

7. An electrical equipment ground bolt fastening device as defined in claim 3 wherein, The inside of the other group of the containing grooves (10) is provided with a brush (12), and the top of the brush (12) is connected with the lower side of the cover plate (13).