Grounding device for preventing underground electric shock accident

Abstract

The utility model discloses a grounding device for preventing an underground electric shock accident, which belongs to a grounding device in the technical field of mine electrical equipment, and adopts the technical scheme that the grounding device comprises a main rod which is of a hollow structure with an opening at the upper end; the grounding connecting plate is fixedly arranged on one side of the upper end of the main rod; the upper end of the locking connecting rod is fixedly arranged with the other end of the main rod; and the main rod, the grounding connecting plate and the locking connecting rod are all made of conductive materials, the grounding connecting plate is provided with at least one connector lug, and the locking connecting rod is provided with a screw locking assembly. According to the grounding device for preventing the underground electric shock accident provided by the utility model, through arranging the ground pile which is used for reinforced clamping installation in the pre-buried rock soil, connection and protection of a plurality of ground wires are realized through the ground pile, and multiple devices share one ground pile, the problems of a large number of ground piles, low standardization degree and the like are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine electrical equipment, and particularly relates to a grounding device for preventing underground electric shock accidents. Background Art

[0002] It is of crucial importance to ensure the intrinsic safety of preventing electric shock accidents underground in underground mines. Therefore, it is necessary to improve the intrinsic safety requirements of preventive measures for electric shock accidents. The reliable installation of grounding electrodes for electrical equipment and facilities is closely related to preventing electric shock accidents. The existing grounding electrodes for underground electrical equipment and facilities are mainly made and installed by welding bolts and using an electric hammer to drill holes with a Φ8-10 round steel, with a hole depth of about 100-150 mm. However, there are problems such as large grounding resistance, easy damage to grounding piles, unstable installation, and a large number of grounding piles at the same power consumption point with low standardization. Therefore, it is necessary to improve and perfect the grounding piles to enhance the stability and safety of grounding. Content of the Utility Model

[0003] The purpose of the utility model is to provide a grounding device for preventing underground electric shock accidents. By setting a grounding pile with enhanced clamping installation in the embedded rock and soil, and connecting and protecting multiple ground wires through the grounding pile, the stability and firmness of the grounding device are realized. The method of sharing one grounding pile for multiple devices solves problems such as a large number of grounding piles and low standardization, and improves the stability and safety of grounding.

[0004] The purpose of the utility model is achieved as follows. A grounding device for preventing underground electric shock accidents includes:

[0005] A main rod, the main rod is a hollow structure with an open upper end;

[0006] A grounding connection plate, the grounding connection plate is fixedly arranged on one side of the upper end of the main rod;

[0007] A locking connecting rod, the upper end of the locking connecting rod is fixedly arranged with the other end of the main rod; and,

[0008] The main rod, the grounding connection plate, and the locking connecting rod are all made of conductive materials. The grounding connection plate is provided with at least one connection head, and the locking connecting rod is provided with a screw locking component.

[0009] Further, the main rod is a circular tube structure, and the grounding connection plate is fixedly arranged along the length direction of the main rod; the grounding connection plate includes a main board and a plurality of fixed nut heads evenly arranged on the end face of the main board, and the fixed nut heads are used for locking and connecting the ground wire.

[0010] Furthermore, the main board is provided with a card slot assembly, and the card slot assembly is provided with a matching protection plate; the card slot assembly includes vertical chutes arranged on both sides of the main board and a horizontal chute arranged at the bottom, and the open ends of the vertical chute and the horizontal chute face the inside of the main board and are arranged on the same horizontal plane.

[0011] Furthermore, the locking connecting rod includes a columnar hollow body with an opening in the length direction, a connecting head arranged at the upper end of the columnar hollow body, and a drill bit arranged at the lower end of the columnar hollow body. The screw locking assembly is arranged inside the columnar hollow body, and the connecting head is fixedly arranged with the main rod.

[0012] Furthermore, the screw locking assembly includes an adjusting clamping piece and an adjusting screw. Both sides of the adjusting clamping piece are provided with sliding rods, and the two sliding rods are slidably arranged in the chutes opened in the length direction of the columnar hollow body. The adjusting screw is threadedly connected with the connecting head and is placed inside the columnar hollow body; the adjusting clamping piece is provided with a through hole, and the adjusting screw can pass through the through hole.

[0013] Furthermore, two symmetrical adjusting grooves are arranged in the length direction of the columnar hollow body, and both ends of the adjusting clamping piece respectively extend out of the adjusting grooves, and any one of the adjusting grooves penetrates through in the length direction of the columnar hollow body.

[0014] Furthermore, the outer wall of the connecting head is provided with threads, and the drill bit includes a conical tip and drill hole threads arranged outside the conical tip.

[0015] Furthermore, any one end of the adjusting clamping piece is provided with a clamping tip.

[0016] The beneficial effects of the present utility model are embodied in:

[0017] 1. In the present utility model, by arranging the main rod in the grounding device, it is convenient to adjust and set the locking connecting rod; at the same time, a grounding connecting plate is arranged on one side of the upper end of the main rod to realize the conductive connection between the corresponding ground wire structure and the entire grounding device; thus, the locking connecting rod arranged at the bottom fixedly installs the entire grounding device in the rock and soil in a strengthened manner, ensuring the stability of the installation and use of the entire grounding device. At the same time, the connection of the grounding connecting plate to the corresponding multiple wiring heads realizes the stable grounding setting of the ground wire, thereby improving the stability and safety of the mine equipment during the working state.

[0018] 2. In the present utility model, by setting the main rod as a circular tube structure and fixedly installing the grounding connecting plate along the length direction of the main rod, the fixed installation of the grounding connecting plate in the vertical direction is achieved. Meanwhile, a plurality of nut fixing heads are arranged on the end face of the grounding connecting plate to achieve the detachable installation of the corresponding ground wires on the grounding connecting plate, thereby realizing an effective grounding installation operation. The setting of a plurality of fixing nut heads enables multiple devices to share one grounding pile, solving problems such as a large number of grounding piles and low standardization degree.

[0019] 3. In the present utility model, since a slot component is provided on the main board, it can provide a certain degree of protection for the panel on the side where the ground wire connector is provided. Specifically, corresponding vertical chutes and horizontal chutes are provided at the edge of the main board, and the vertical chutes and horizontal chutes are provided on the side of the main board where the ground wire connector is installed. The open ends of the vertical chutes and horizontal chutes face the inside of the main board and are on the same horizontal plane, thereby realizing the sliding installation of the protection plate on the main board, and further realizing the operation of installing and protecting the ground wire connector on the panel.

[0020] 4. In the present utility model, since an open columnar hollow body is provided in the locking connecting rod, a connecting head is provided at the upper end of the columnar hollow body, and a drill bit is provided at the lower end of the columnar hollow body, the locking connecting rod has the function of drilling and stably fixing in the rock and soil. The connecting head realizes the installation of the main rod. The screw locking component is arranged inside the columnar hollow body, and the connecting head is fixedly arranged with the main rod. Due to the provision of the hollow main rod and the columnar hollow body, a space for adjusting the locking connecting rod is provided.

[0021] 5. In the present utility model, by providing an adjusting clamping piece and an adjusting screw in the screw locking component, the adjusting clamping piece passes through in the diameter direction of the columnar hollow body, and is limited and slid on the chutes opened in the length direction of the columnar hollow body by the sliding rods arranged on both sides, so that the adjusting clamping piece can slide in the length direction of the columnar hollow body and can be rotated and adjusted in the vertical direction, thereby realizing the angle adjustment of the adjusting clamping piece relative to the columnar hollow body. Since the columnar hollow body is provided with an opening in the length direction, a space is provided for the adjusting clamping piece to be accommodated in the columnar hollow body after rotation, which is convenient for the storage and carrying of the entire grounding device. When it is necessary to drill and install on the rock and soil, the adjusting clamping piece is screwed out, and under the operation of screwing the adjusting screw between the connecting heads, the adjusting screw can pass through the through hole opened on the adjusting clamping piece, thereby fixing the adjusting clamping piece at a certain angle relative to the columnar hollow body, making the entire grounding device have a strengthened fixing setting when drilling in the rock and soil.

[0022] 6. In the present utility model, the adjustment slots provided in the columnar hollow body in the length direction offer a movement space and a limiting space for the adjustment clamping piece to rotate in the diameter direction of the columnar hollow body. Any one of the adjustment slots is provided to penetrate through the columnar hollow body in the length direction, forming an opening in the length direction of the columnar hollow body, so as to provide a space for accommodating the adjustment clamping piece. Description of the Drawings

[0023] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual scale.

[0024] Figure 1 It is a stepped sectional view of the grounding device of the present utility model;

[0025] Figure 2 It is a schematic diagram of the connection between the protection plate and the main board of the present utility model;

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the locking connecting rod of the present utility model;

[0027] Figure 4 It is a front view of the locking connecting rod of the present utility model.

[0028] In the drawings, 1 - main rod, 2 - grounding connection plate, 3 - locking connecting rod, 4 - connection head, 5 - screw locking assembly, 6 - main board, 7 - fixed nut head, 8 - slot component, 9 - protection plate, 10 - vertical sliding groove, 11 - horizontal sliding groove, 12 - columnar hollow body, 13 - connection head, 14 - drill bit, 15 - adjustment clamping piece, 16 - adjustment screw, 17 - sliding rod, 18 - sliding groove, 19 - through hole, 20 - adjustment slot, 21 - conical tip, 22 - drilling thread, 23 - clamping tip, 24 - thread. Specific Embodiments

[0029] The following will describe in detail the embodiments of the technical solutions of the present utility model in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0030] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should be of the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0031] Referring to Figures 1-4 , a grounding device for preventing underground electric shock accidents, comprising

[0032] Main rod 1, the main rod 1 is a hollow structure with an open upper end;

[0033] Grounding connection plate 2, the grounding connection plate 2 is fixedly arranged on one side of the upper end of the main rod 1;

[0034] Locking connecting rod 3, the upper end of the locking connecting rod 3 is fixedly arranged with the other end of the main rod 1; and,

[0035] The main rod 1, the grounding connection plate 2 and the locking connecting rod 3 are all made of conductive materials. The grounding connection plate 2 is provided with at least one connection terminal 4, and the locking connecting rod 3 is provided with a screw locking assembly 5.

[0036] Refer to Figure 1 , by arranging the main rod 1 in the grounding device, it is convenient to adjust and set the locking connecting rod 3; at the same time, by arranging the grounding connection plate 2 on one side of the upper end of the main rod 1, the corresponding ground wire structure is conductively connected to the whole grounding device; thus, the locking connecting rod 3 arranged at the bottom fixedly installs the whole grounding device in the rock and soil in a strengthened manner, ensuring the stability of the installation and use of the whole grounding device; at the same time, the connection of the corresponding multiple connection terminals 4 by the grounding connection plate 2 realizes the stable grounding setting of the ground wire, thereby improving the stability and safety of the mine equipment during operation.

[0037] Preferably, the main rod 1 is a circular tube structure, and the grounding connection plate 2 is fixedly arranged along the length direction of the main rod 1; the grounding connection plate 2 includes a main board 6 and a plurality of fixed nut heads 7 evenly arranged on the end face of the main board 6, and the fixed nut heads 7 are used for locking and connecting the ground wire.

[0038] It can be understood that by setting the main rod 1 as a circular tube structure and fixedly arranging the grounding connection plate 2 along the length direction of the main rod 1, the fixed installation of the grounding connection plate 2 in the vertical direction is realized; at the same time, by arranging a plurality of nut fixing heads on the end face of the grounding connection plate 2, the detachable installation of the corresponding ground wire on the grounding connection plate 2 is realized, and the effective grounding installation operation is realized. The setting of a plurality of fixed nut heads 7 realizes the sharing of one grounding pile by multiple devices, and solves problems such as a large number of grounding piles and low standardization degree.

[0039] As a preferred way of this embodiment, the grounding connection plate 2 and the main rod 1 are relatively fixedly connected by welding.

[0040] Preferably, the main board 6 is provided with a slot component 8, and the slot component 8 is provided with a matching protection plate 9; the slot component 8 includes vertical chutes 10 arranged on both sides of the main board 6 and a horizontal chute 11 arranged at the bottom, and the open ends of the vertical chutes 10 and the horizontal chute 11 face the inside of the main board 6 and are arranged on the same horizontal plane.

[0041] Referring to Figure 2 Figure 2 , since the slot component 8 is provided on the main board 6, certain protection can be provided for the panel on the side where the ground wire connector is provided. Specifically, corresponding vertical chutes 10 and horizontal chutes 11 are provided at the edge of the main board 6, and the vertical chutes 10 and horizontal chutes 11 are provided on the side of the main board 6 where the ground wire connector is installed, and the open ends of the vertical chutes 10 and horizontal chutes 11 are arranged towards the inside of the main board 6 and on the same horizontal plane, thereby realizing the sliding installation of the protection plate 9 on the main board 6, and further realizing the operation of installing and protecting the ground wire connector on the panel.

[0042] Preferably, the locking connecting rod 3 includes a columnar hollow body 12 with an opening in the length direction, a connecting head 13 provided at the upper end of the columnar hollow body 12, and a drill bit 14 provided at the lower end of the columnar hollow body 12. The screw locking assembly 5 is arranged inside the columnar hollow body 12, and the connecting head 13 is fixedly arranged with the main rod 1.

[0043] It can be understood that since the columnar hollow body 12 with an opening is provided in the locking connecting rod 3, the connecting head 13 is provided at the upper end of the columnar hollow body 12, and the drill bit 14 is provided at the lower end of the columnar hollow body 12, the locking connecting rod 3 has the function of drilling and stably fixing in the rock and soil. The connecting head 13 realizes the installation of the main rod 1. The screw locking assembly 5 is arranged inside the columnar hollow body 12, and the connecting head 13 is fixedly arranged with the main rod 1. Since the hollow main rod 1 and the columnar hollow body 12 are provided, a space for adjusting the locking connecting rod 3 is provided.

[0044] Preferably, the screw locking assembly 5 includes an adjusting clamping piece 15 and an adjusting screw 16. Sliding rods 17 are arranged on both sides of the adjusting clamping piece 15, and the two sliding rods 17 are slidably arranged in the chute 18 opened in the length direction of the columnar hollow body 12. The adjusting screw 16 is threadedly connected with the connecting head 13 and is arranged inside the columnar hollow body 12. The adjusting clamping piece 15 is provided with a through hole 19, and the adjusting screw 16 can pass through the through hole 19.

[0045] Referring to Figures 1-4, by setting the adjusting clamping piece 15 and the adjusting screw 16 in the screw locking assembly 5, the adjusting clamping piece 15 passes through in the diameter direction of the columnar hollow body 12, and is limited and slidably arranged on the chute 18 opened in the length direction of the columnar hollow body 12 through the sliding rods 17 arranged on both sides, so that the adjusting clamping piece 15 can slide in the length direction of the columnar hollow body 12 and can be rotationally adjusted in the vertical direction, thereby realizing the angle adjustment between the adjusting clamping piece 15 and the columnar hollow body 12. Since the columnar hollow body 12 is provided with an opening in the length direction, a space is provided for the adjusting clamping piece 15 to be accommodated in the columnar hollow body 12 after rotation, which is convenient for the storage and carrying of the entire grounding device. When it is necessary to drill and install on the rock and soil, the adjusting clamping piece 15 is screwed out, and under the operation of screwing the thread 24 between the connecting heads 13 of the adjusting screw 16, the adjusting screw 16 can pass through the through hole 19 opened on the adjusting clamping piece 15, thereby fixing the adjusting clamping piece 15 at a certain angle relative to the columnar hollow body 12, so that the entire grounding device is fixedly arranged in a strengthened manner when drilling in the rock and soil.

[0046] Preferably, two symmetrical adjusting grooves 20 are arranged in the length direction of the columnar hollow body 12, and both ends of the adjusting clamping piece 15 extend out of the adjusting grooves 20 respectively, and any one of the adjusting grooves 20 penetrates through in the length direction of the columnar hollow body 12.

[0047] It can be understood that the adjusting groove 20 arranged in the length direction of the columnar hollow body 12 provides a moving space and a limiting space for the adjusting clamping piece 15 to rotate in the diameter direction of the columnar hollow body 12. Any one of the adjusting grooves 20 penetrates through in the length direction of the columnar hollow body 12 to form an opening in the length direction of the columnar hollow body 12, providing a space for accommodating the adjusting clamping piece 15.

[0048] Preferably, the outer wall of the connecting head 13 is provided with a thread 24, and the drill bit 14 includes a conical tip 21 and a drilling thread 22 arranged outside the conical tip 21.

[0049] As a preferred way of this embodiment, the conical tip 21 in the drill bit 14 is arranged at the position of the central axis, and the drilling thread 22 is arranged outside the conical tip 21, so that the drill bit 14 is more conducive to drilling into the rock and soil. Among them, the thread 24 arranged on the outer wall of the connecting head 13 is conducive to the drilling of the screw locking assembly 5 in the rock and soil.

[0050] Preferably, a clamping tip 23 is provided at any one end of the adjusting clamping piece 15. The provision of the clamping tip 23 is conducive to forming a certain angle between the adjusting clamping piece 15 and the columnar hollow body 12 through the acting force of the adjusting screw 16 when the screw locking assembly 5 drills into the rock and soil, and locking and fixing them relatively, so that the entire grounding device can perform stable locking operations in the rock and soil.

[0051] The working principle and process of the present utility model:

[0052] When the grounding device for preventing underground electric shock accidents provided by the present utility model is in use, by drilling the locking connecting rod into the rock and soil, that is, the external rotating rod penetrates into the main rod 1, and the adjusting screw 16 is rotated. The adjusting screw 16 screwed downward forms a certain angle between the adjusting clamping piece 15 and the columnar hollow body 12, so that the insertion and installation of the locking connecting rod in the rock and soil can be more stable.

[0053] Furthermore, by providing the main rod 1 in the grounding device, it is convenient to adjust the locking connecting rod 3; at the same time, a grounding connection plate 2 is provided on one side of the upper end of the main rod 1 to conductively connect the corresponding ground wire structure to the entire grounding device; thus, the locking connecting rod 3 provided at the bottom fixedly installs the entire grounding device in the rock and soil in a strengthened manner, ensuring the stability of the installation and use of the entire grounding device. At the same time, the grounding connection plate 2 connects the corresponding multiple wiring heads 4 to achieve a stable grounding setting for the ground wire, thereby improving the stability and safety of the mine equipment during operation.

[0054] Further, since a slot component 8 is provided on the main board 6, it is possible to provide a certain protection for the panel on the side provided with the ground wire connection head; specifically, corresponding vertical chutes 10 and horizontal chutes 11 are provided at the edge of the main board 6, and the vertical chutes 10 and horizontal chutes 11 are provided on the side of the main board 6 where the ground wire connector is installed, and the open ends of the vertical chutes 10 and horizontal chutes 11 face the inside of the main board 6 and are arranged on the same horizontal plane, thereby realizing the sliding installation of the protection plate 9 on the main board 6, and further realizing the operation of installing and protecting the ground wire connector on the panel.

[0055] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model, and they should all be covered by the scope of the claims and the description of the present utility model.

Claims

1. A grounding device for preventing underground electric shock accidents, characterized in that, Comprising, A main rod (1), the main rod (1) being a hollow structure with an open upper end; A grounding connection plate (2), the grounding connection plate (2) being fixedly arranged on one side of the upper end of the main rod (1); A locking connecting rod (3), the upper end of the locking connecting rod (3) being fixedly arranged with the other end of the main rod (1); and, The main rod (1), the grounding connection plate (2) and the locking connecting rod (3) are all made of conductive materials, the grounding connection plate (2) is provided with at least one wiring terminal (4), and the locking connecting rod (3) is provided with a screw locking assembly (5).

2. The grounding device for preventing underground electric shock accidents according to claim 1, characterized in that The main rod (1) is a circular tube structure, and the grounding connection plate (2) is fixedly arranged along the length direction of the main rod (1); the grounding connection plate (2) includes a main board (6) and a plurality of fixed nut heads (7) evenly arranged on the end face of the main board (6), and the fixed nut heads (7) are used for locking and connecting the ground wire.

3. The grounding device for preventing underground electric shock accidents according to claim 2, characterized in that The main board (6) is provided with a slot assembly (8), and the slot assembly (8) is provided with a matching protective plate (9); the slot assembly (8) includes vertical sliding grooves (10) arranged on both sides of the main board (6) and a horizontal sliding groove (11) arranged at the bottom, and the open ends of the vertical sliding grooves (10) and the horizontal sliding groove (11) face the inside of the main board (6) and are arranged on the same horizontal plane.

4. The grounding device for preventing underground electric shock accidents according to claim 1, characterized in that, The locking connecting rod (3) includes a columnar hollow body (12), a connecting head (13) arranged at the upper end of the columnar hollow body (12) and a drill bit (14) arranged at the lower end of the columnar hollow body (12), the screw locking assembly (5) is arranged inside the columnar hollow body (12), and the connecting head (13) is fixedly arranged with the main rod (1).

5. The grounding device for preventing underground electric shock accidents as described in claim 1 or 4, characterized in that, The screw locking assembly (5) includes an adjusting clamping piece (15) and an adjusting screw (16), both sides of the adjusting clamping piece (15) are provided with sliding rods (17), and the two sliding rods (17) are slidably arranged in a sliding groove (18) opened in the length direction of the columnar hollow body (12), the adjusting screw (16) is threadedly connected with the connecting head (13) and is placed inside the columnar hollow body (12); the adjusting clamping piece (15) is provided with a through hole (19), and the adjusting screw (16) can pass through the through hole (19).

6. The grounding device for preventing underground electric shock accidents as described in claim 5, characterized in that, Two symmetrical adjusting grooves (20) are arranged in the length direction of the columnar hollow body (12), and both ends of the adjusting clamping piece (15) respectively extend out of the adjusting grooves (20), and any one of the adjusting grooves (20) penetrates through in the length direction of the columnar hollow body (12).

7. The grounding device for preventing underground electric shock accidents according to claim 4, characterized in that, The connecting head (13) is provided with a thread (24) on the outer wall, and the drill bit (14) includes a conical tip (21) and a drilling thread (22) arranged on the outside of the conical tip (21).

8. The grounding device for preventing underground electric shock accidents according to claim 5, characterized in that, Any one end of the adjusting clamping piece (15) is provided with a clamping tip (23).

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