Anti-static device for coal mine electrical equipment

Abstract

The utility model provides an anti-static device for coal mine electrical equipment, and belongs to the technical field of static prevention and control. Comprising a main arm, clamping plates are arranged at the two ends of the main arm, an adjusting assembly for adjusting the distance between the clamping plates is arranged on the main arm, the clamping plates are distributed towards the side of the main arm, a conductive plate is fixed to the face, facing the clamping plates, of the main arm, a conductive piece is vertically arranged on the main arm and makes contact with the conductive plate, and the conductive piece is movably assembled on the main arm. The conducting strip is in sliding contact with the conducting plate, and the main arm is provided with a pressing piece for adjusting the height of the conducting strip. According to the utility model, a conductive path is formed between the electrical equipment and the ground or the wall surface, so that static charges on the surface of the electrical equipment can be quickly guided into the ground, static accumulation is avoided, the safety of the equipment and personnel is protected, the flexibility and the adaptability are higher, a clamping assembly mode is adopted, the assembly and disassembly are easy, and the repeated utilization can be realized.

Description

Technical Field

[0001] This utility model relates to the field of static electricity prevention technology, and in particular to an anti-static device for electrical equipment in coal mines. Background Technology

[0002] Static electricity is an objective natural phenomenon that can be generated in various ways, such as through contact, friction, and peeling. Static electricity protection is particularly important in coal mine production environments. With the development of science and technology, more and more electrical automation equipment is being used in the coal mining industry. However, these devices operate for extended periods in dusty, dry environments, making their surfaces prone to static electricity buildup. Coal mines contain large amounts of flammable and explosive gases and dust; if static electricity is generated and discharged on the surface of electrical equipment, it could trigger a fire or explosion, posing a significant threat to the lives of workers.

[0003] Currently, electrostatic discharge (ESD) protection for electrical equipment is achieved by grounding the metal parts of the equipment, such as the casing and frame, to the earth to form a conductive path. However, existing grounding devices are usually fixed to the electrical equipment by bolts or welding, which requires welding or drilling equipment, making installation cumbersome and inconvenient for disassembly and reuse. Therefore, this application provides an ESD protection device for electrical equipment in coal mines to meet the requirements. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an anti-static device for electrical equipment in coal mines, so as to solve the problem that the existing anti-static structure for electrical equipment is cumbersome to install and not easy to disassemble and reuse.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An anti-static device for electrical equipment in coal mines includes a main arm with clamps at both ends. An adjustment assembly for adjusting the distance between a pair of clamps is provided on the main arm. The clamps are distributed on one side of the main arm facing the clamps. A conductive plate is fixed on the side of the main arm facing the clamps. A conductive sheet is also vertically arranged on the main arm, and the conductive sheet is in contact with the conductive plate.

[0007] Optionally, the conductive sheet is movably mounted on the main arm, and the conductive sheet slides in contact with the conductive plate. The main arm is provided with a pressing member for adjusting the height of the conductive sheet.

[0008] Optionally, the conductive sheet is located on the side of the main arm away from the conductive plate, and the conductive sheet is slidably attached to the main arm. The conductive plate is provided with a conductive collar that is slidably sleeved with the conductive sheet.

[0009] Optionally, an auxiliary plate is provided at the end of the conductive collar away from the conductive plate. The auxiliary plate is parallel to the main arm and slides against the surface of the conductive sheet.

[0010] Optionally, the bottom end of the conductive sheet is bent horizontally to provide a ground contact piece.

[0011] Optionally, the pressing component includes a fixing frame fixed on the side of the main arm away from the conductive plate, a sleeve block is provided inside the fixing frame, a screw is threaded vertically through the sleeve block, the ground contact plate is arranged facing the side away from the main arm, the bottom end of the screw is rotatably connected to the ground contact plate, and a handle is provided at the top end of the screw.

[0012] Optionally, the adjustment assembly includes a secondary arm that is movably inserted through the end of the main arm and a positioning bolt threaded into the side wall of the end of the main arm, with a clamp plate mounted on the end of the secondary arm that extends beyond the positioning bolt.

[0013] Optionally, the positioning bolt is located on the side of the main arm away from the conductive plate, and a rubber strip is embedded on the side of the auxiliary arm facing the positioning bolt. The rubber strip is aligned with the positioning bolt and is distributed along the length of the auxiliary arm.

[0014] Optionally, a rubber pad is provided on the opposite side of the pair of clamps.

[0015] Optionally, the clamping plate is provided with a pair of connecting blocks at one end facing the auxiliary arm, the pair of connecting blocks are nested with the end of the auxiliary arm, and a pin is passed through the pair of connecting blocks and the end of the auxiliary arm.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] In the above scheme, by setting conductive plates and conductive sheets, the conductive plates on the main arm are attached to the electrical equipment. By adjusting the spacing of a pair of clamps, the main arm is fixed to the electrical equipment. The downward pressing component pushes the conductive sheets to make the ground contact plate contact the ground or wall near the electrical equipment. The conductive plates contact the electrical equipment, and the conductive plates contact the conductive sheets through conductive collars. The conductive sheets contact the ground or wall through the ground contact plate, which can form a conductive path between the electrical equipment and the ground or wall. This allows the static charge on the surface of the electrical equipment to be quickly conducted to the ground, avoiding static electricity accumulation and thus protecting the safety of equipment and personnel. Since the screw can push the conductive sheets to move and adjust relative to the conductive plates, the spacing of the pair of clamps is adjustable, the structure is flexible, and it can be assembled with electrical equipment of different sizes and types in coal mines. It has high flexibility and adaptability, and the clamping assembly method is easy to disassemble and reassemble, and can be reused. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0019] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection between the conductive plate and the main arm of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the pressing component of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the conductive plate and conductive sheet of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the auxiliary arm and the clamping plate of this utility model.

[0024] Figure label:

[0025] 1. Main boom; 2. Auxiliary boom; 3. Clamping plate; 4. Positioning bolt; 5. Conductive plate; 6. Conductive sheet; 7. Pressing component; 8. Fixing frame; 9. Screw; 10. Handle; 11. Sleeve block; 12. Conductive collar; 13. Auxiliary plate; 14. Ground contact plate; 15. Rubber strip; 16. Connecting block; 17. Pin; 18. Rubber pad.

[0026] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0027] The anti-static device for electrical equipment in coal mines provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0028] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0029] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0030] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0031] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0032] like Figure 1 and Figure 2As shown, an embodiment of this utility model provides an anti-static device for electrical equipment in coal mines, including a main arm 1. Clamping plates 3 are provided at both ends of the main arm 1. An adjusting assembly for adjusting the distance between the clamping plates 3 is provided on the main arm 1. The clamping plates 3 are distributed towards one side of the main arm 1. A conductive plate 5 is fixed to the side of the main arm 1 facing the clamping plates 3. A conductive sheet 6 is also vertically arranged on the main arm 1, contacting the conductive plate 5. Through this structure, the conductive plate 5 on the main arm 1 is pressed against the electrical equipment. By adjusting the distance between the clamping plates 3, the main arm 1 is fixed to the electrical equipment by clamping it with the clamping plates 3, while simultaneously ensuring the conductivity... The conductive plate 6 contacts the ground or wall near the electrical equipment, the conductive plate 5 contacts the electrical equipment, and the conductive plate 5 contacts the conductive plate 6 through the conductive collar 12. The conductive plate 6 contacts the ground or wall, forming a conductive path between the electrical equipment and the ground or wall, so that the static charge on the surface of the electrical equipment can be quickly conducted to the ground, avoiding the accumulation of static electricity, thereby protecting the safety of equipment and personnel. Since the spacing of the pair of clamping plates 3 is adjustable, the structure is flexible and can be assembled on electrical equipment of different sizes and types in coal mines. It has high flexibility and adaptability, and the clamping assembly method is easy to disassemble and reassemble, and can be reused.

[0033] like Figure 2 , Figure 3 and Figure 4 As shown, the conductive sheet 6 is movably mounted on the main arm 1, and the conductive sheet 6 slides in contact with the conductive plate 5. A pressing member 7 for adjusting the height of the conductive sheet 6 is provided on the main arm 1. The conductive sheet 6 is located on the side of the main arm 1 away from the conductive plate 5, and the conductive sheet 6 slides against the main arm 1. A conductive collar 12 is provided on the conductive plate 5, which slides against the conductive sheet 6. An auxiliary plate 13 is provided at the end of the conductive collar 12 away from the conductive plate 5. The auxiliary plate 13 is parallel to the main arm 1 and slides against the surface of the conductive sheet 6. This structural design ensures that the conductive sheet 6 remains in conductive contact with the conductive plate 5 through the conductive collar 12 during adjustment. A ground contact piece 14 is horizontally bent at the bottom end of the conductive sheet 6. The pressing member 7 includes components fixed to... A fixing frame 8 is located on the side of the main arm 1 away from the conductive plate 5. A sleeve block 11 is provided inside the fixing frame 8. A screw 9 is threaded vertically through the sleeve block 11. The ground contact plate 14 is located on the side away from the main arm 1. The bottom end of the screw 9 is rotatably connected to the ground contact plate 14. A handle 10 is provided at the top end of the screw 9. After the main arm 1 is clamped and fixed on the electrical equipment, the screw 9 is turned to rotate and push the conductive plate 6 toward the ground or wall near the electrical equipment until the ground contact plate 14 contacts the ground or wall. Thus, the ground contact plate 14, the conductive plate 6, the conductive collar 12 and the conductive plate 5 cooperate to form a conductive path between the electrical equipment and the ground or wall. And by sliding the conductive plate 6, it can be adapted to different electrical equipment installation environments.

[0034] like Figure 1 and Figure 5As shown, the adjustment assembly includes a secondary arm 2 movably inserted through the end of the main arm 1 and a positioning bolt 4 threaded into the side wall of the end of the main arm 1. A clamping plate 3 is mounted on the end of the secondary arm 2 extending beyond the positioning bolt 4. The positioning bolt 4 is located on the side of the main arm 1 away from the conductive plate 5. A rubber strip 15 is embedded on the side of the secondary arm 2 facing the positioning bolt 4, aligned with the positioning bolt 4 and distributed along the length of the secondary arm 2. Pulling the secondary arm 2 to extend or retract from the positioning bolt 4 adjusts the distance between the pair of clamping plates 3. Tightening the positioning bolt 4 to abut against the rubber strip 15 on the secondary arm 2 adjusts and fixes the distance between the pair of clamping plates 3. Rubber pads 18 are provided on the opposing sides of the pair of clamping plates 3 to increase friction and improve clamping effect. A pair of connecting blocks 16 are provided on the end of the clamping plate 3 facing the secondary arm 2. The pair of connecting blocks 16 are nested with the end of the secondary arm 2, and pins 17 pass between the pair of connecting blocks 16 and the end of the secondary arm 2.

[0035] The working principle of the technical solution provided by this utility model is as follows:

[0036] In use, place the conductive plate 5 on the main arm 1 against the electrical equipment near the ground or wall. Then, pull the auxiliary arm 2 to extend or retract the positioning bolt 4, adjust the distance between the pair of clamping plates 3, and tighten the positioning bolt 4 to abut against the auxiliary arm 2. Use the pair of clamping plates 3 to clamp and fix the main arm 1 to the electrical equipment. Next, turn the screw 9 to rotate and push the conductive plate 6 towards the ground or wall near the electrical equipment until the ground contact plate 14 contacts the ground or wall. At this time, the conductive plate 5 contacts the electrical equipment, and the conductive plate 5 connects to the conductive plate 6 through the conductive collar 12. The conductive sheet 6 contacts the ground or wall through the ground contact sheet 14, thereby forming a conductive path between the electrical equipment and the ground or wall. This allows the static charge on the surface of the electrical equipment to be quickly conducted to the ground, preventing the accumulation of static electricity and protecting the safety of the equipment and personnel. Since the screw 9 can push the conductive sheet 6 to move and adjust relative to the conductive plate 5, the spacing between the pair of clamping plates 3 is adjustable. The structure is flexible and can be assembled into electrical equipment of different sizes and types in coal mines. It has high flexibility and adaptability. Moreover, the clamping assembly method makes it easy to disassemble and reassemble and can be reused.

[0037] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An anti-static device for electrical equipment in coal mines, comprising a main boom, characterized in that: The main arm has clamps at both ends and an adjustment assembly for adjusting the distance between the clamps. The clamps are distributed on one side of the main arm, and a conductive plate is fixed on the side of the main arm facing the clamps. A conductive sheet is also vertically mounted on the main arm, and the conductive sheet is in contact with the conductive plate.

2. The anti-static device for coal mine electrical equipment according to claim 1, characterized in that, The conductive sheet is movably mounted on the main arm, and the conductive sheet slides in contact with the conductive plate. The main arm is provided with a pressing component to adjust the height of the conductive sheet.

3. The anti-static device for coal mine electrical equipment according to claim 1, characterized in that, The conductive sheet is located on the side of the main arm away from the conductive plate, and the conductive sheet slides and fits against the main arm. The conductive plate is provided with a conductive collar that slides and fits against the conductive sheet.

4. The anti-static device for coal mine electrical equipment according to claim 3, characterized in that, An auxiliary plate is provided at the end of the conductive collar away from the conductive plate. The auxiliary plate is parallel to the main arm and slides against the surface of the conductive sheet.

5. The anti-static device for coal mine electrical equipment according to claim 2, characterized in that, The bottom end of the conductive sheet is bent horizontally to provide a ground contact piece.

6. The anti-static device for coal mine electrical equipment according to claim 5, characterized in that, The pressing component includes a fixing frame fixed on the side of the main arm away from the conductive plate. A sleeve block is provided inside the fixing frame. A screw rod is threaded vertically through the sleeve block. The ground contact plate is positioned facing away from the main arm. The bottom end of the screw rod is rotatably connected to the ground contact plate. A handle is provided at the top end of the screw rod.

7. The anti-static device for coal mine electrical equipment according to claim 1, characterized in that, The adjustment assembly includes a secondary arm that is movably inserted through the end of the main arm and a positioning bolt threaded into the side wall of the end of the main arm. A clamping plate is assembled on the end of the secondary arm that extends out of the positioning bolt.

8. The anti-static device for coal mine electrical equipment according to claim 7, characterized in that, The positioning bolt is located on the side of the main arm away from the conductive plate. A rubber strip is embedded on the side of the auxiliary arm facing the positioning bolt. The rubber strip is aligned with the positioning bolt and is distributed along the length of the auxiliary arm.

9. The anti-static device for coal mine electrical equipment according to claim 1, characterized in that, A rubber pad is provided on the opposite side of the pair of clamps.

10. The anti-static device for coal mine electrical equipment according to claim 7, characterized in that, The clamping plate is provided with a pair of connecting blocks at one end facing the auxiliary arm. The pair of connecting blocks are nested with the end of the auxiliary arm, and a pin is inserted between the pair of connecting blocks and the end of the auxiliary arm.

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