Grounding resistance measurement simulation device

Abstract

A ground resistance measurement simulation device relates to the technical field of electric equipment teaching and comprises a supporting rod, a table top is fixedly mounted on the supporting rod, a guide rail and a groove body are mounted on the table top, a bearing plate is slidably mounted on the guide rail, and the top of the inner end of the bearing plate is connected with an inner bottom plate of the groove body through a drag chain. The bottom of the outer end of the bearing plate is fixedly provided with a bearing plate, the side surface of the bearing plate is provided with a support which moves vertically, and the support is fixedly provided with a ground wire connector. A resistance box is fixedly placed on one side of the supporting rod, and a plurality of wiring sockets capable of being in butt joint with ground wire connectors are installed on the resistance box. According to the utility model, outdoor operation is not needed, the influence of severe weather on simulation training can be effectively avoided, and the whole device occupies a small area, is convenient to disassemble and assemble, provides great convenience for teaching training, and has a very wide application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment teaching, and specifically discloses a ground resistance measurement simulation device. Background Art

[0002] Grounding resistance, also known as protective grounding, is an important measure for protecting electrical equipment from electric shock. When a single insulation fault occurs in basic insulation, the protective grounding terminal of the power supply is connected to the conductive parts of the equipment, and electrical equipment with dangerous voltage can be connected to the protective grounding terminal through the grounding wire, thereby providing emergency protection for the power supply and electrical equipment. By setting the grounding resistance, a low-resistance return path can be provided for the fault current to ensure that when a fault occurs, the potential difference between the accessible part of the electrical equipment and the ground and the adjacent structure remains within a safe range, thereby ensuring personal safety.

[0003] Most power workers need to undergo ground resistance measurement training during training. Traditional ground resistance measurement training needs to be conducted outdoors, usually occupying a 40m long outdoor measurement site. In addition, outdoor training is greatly affected by the weather, and it is difficult to conduct training in harsh environments such as severe cold, strong winds, snow and rain. It can be seen that the existing ground resistance measurement training operations occupy a large area and are easily affected by environmental interference, which has caused great inconvenience to teaching and training. Utility Model Content

[0004] Aiming at the problems of large occupied area and susceptibility to environmental interference in current ground resistance measurement training, the utility model provides a ground resistance measurement simulation device.

[0005] To solve the above problems, the utility model provides the following technical solutions:

[0006] A ground resistance measurement simulation device comprises a support rod, a table top is fixedly mounted on the support rod, a guide rail and a trough body are mounted on the table top, a load-bearing plate is slidably mounted on the guide rail, the inner end top of the load-bearing plate is connected to the inner bottom plate of the trough body through a drag chain, a receiving plate is fixedly mounted on the outer end bottom of the load-bearing plate, a vertically movable support is arranged on the side of the receiving plate, a ground wire connector is fixedly mounted on the support; a resistance box is fixedly placed on one side of the support rod, and a plurality of wiring sockets which can be connected to the ground wire connector are mounted on the resistance box.

[0007] Preferably, a first right-angle plate is fixedly installed on the top of the inner end of the load-bearing plate, a second right-angle plate is arranged on the rear side of the first right-angle plate, a through groove is opened on the vertical surface of the first right-angle plate, a bolt which is fastened to the second right-angle plate is installed in the through groove, and the drag chain is fastened to the top of the second right-angle plate.

[0008] Preferably, a plurality of through holes are provided on the inner bottom plate of the trough body, and the drag chain can be fastened to the through holes by bolts.

[0009] Preferably, a rod seat is fixedly installed on the outer surface of the receiving plate, and multiple sliding rods are slidably installed in the rod seat. The bottom end of the sliding rod is tightly connected to the support. A penetrating installation opening is opened on the support, and the ground wire connector is fixedly installed in the installation opening.

[0010] Preferably, a through screw hole is provided on the side of the support, a limiting rod is installed in the screw hole, a circular ring is fixedly installed on the end of the limiting rod, and a limiting hole is provided on the supporting plate to facilitate the entry of the limiting rod, and the height position of the limiting hole is flush with the bottom surface of the rod seat.

[0011] Preferably, a plurality of evenly distributed fastening plates are fixedly mounted on the resistor box, the wiring socket is arranged inside the fastening plate, and the depth of the wiring socket is less than the length of the grounding connector. Compared with the prior art, the utility model has the following beneficial effects:

[0012] The load-bearing plate in the utility model can be linearly displaced along the guide rail, and its displacement distance can be effectively extended under the connection of the drag chain. By arranging multiple wiring sockets on the resistance box, the grounding resistance measurement operation under various resistance conditions can be effectively simulated, so that power operators can make measurement selections, thereby connecting the ground wire connector with the wiring socket, so as to carry out grounding resistance measurement simulation training; the utility model does not need to work outdoors, and can effectively avoid the influence of bad weather on simulation training. In addition, the overall device occupies a small area, and is relatively convenient to disassemble and install, which provides great convenience for teaching and training, and therefore has a very broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the utility model, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the overall device structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the first right-angle plate and the second right-angle plate of the utility model;

[0016] Figure 3 It is a schematic diagram of the through hole structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the installation port structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the fastening plate installation structure of the utility model;

[0019] In the figure: 1. support rod, 2. table top, 3. guide rail, 4. trough body, 5. load-bearing plate, 6. drag chain, 7. receiving plate, 8. support, 9. ground wire connector, 10. resistor box, 11. wiring socket, 12. first right-angle plate, 13. second right-angle plate, 14. through groove, 15. through hole, 16. rod seat, 17. sliding rod, 18. installation port, 19. screw hole, 20. limit rod, 21. ring, 22. limit hole, 23. fastening plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0021] This specific implementation provides a ground resistance measurement simulation device, such as Figure 1-Figure 5 As shown, it includes support rods 1, and the support rods 1 are provided with 4 pieces. A table top 2 is commonly installed on the 4 support rods 1, and the lower surface of the table top 2 is fastened to the top of the support rods 1. A guide rail 3 and a slot body 4 are installed on the upper surface of the table top 2; the guide rail 3 is arranged on the front side of the slot body 4, and the length of the guide rail 3 is greater than the length of the slot body 4, and a load-bearing plate 5 that can slide linearly along the guide rail 3 is provided on the guide rail 3, and the bottom surface of the load-bearing plate 5 is slidably matched with the guide rail 3; a first right-angle plate 12 is fixedly installed on the top of the inner end of the load-bearing plate 5, and the horizontal surface of the first right-angle plate 12 is fastened to the load-bearing plate 5 by bolts, and the rear side of the vertical surface of the first right-angle plate 12 is fixedly connected to the second right-angle plate 13, the second right-angle plate 13 is fastened to the first right-angle plate 12 by bolts, a through slot 14 is provided on the vertical surface of the first right-angle plate 12, the through slot 14 is provided with two and symmetrically arranged on the vertical surface of the first right-angle plate 12, the bolts fastening the first right-angle plate 12 and the second right-angle plate 13 can be arranged in the through slot 14; by providing the through slot 14 on the first right-angle plate 12, the installation height of the second right-angle plate 13 can be adjusted to adapt to the training needs, thereby improving the practicality of the overall device.

[0022] A connected drag chain 6 is provided between the second right-angle plate 13 and the tank body 4, one end of the drag chain 6 is fastened to the top of the second right-angle plate 13, and the other end of the drag chain 6 is connected to the inner bottom plate of the tank body 4; the inner bottom plate of the tank body 4 is provided with multiple groups of through holes 15, each group of through holes 15 is provided with four, and the through holes 15 are evenly arranged, and the drag chain 6 can be fastened to the through holes 15 by bolts. By providing multiple groups of through holes 15 in the tank body 4, the installation position of the drag chain 6 can be made more flexible, so as to match the sliding position of the load-bearing plate 5.

[0023] The outer end bottom of the load-bearing plate 5 is fixedly installed with a receiving plate 7, and the outer surface of the receiving plate 7 is fixedly installed with a rod seat 16. The outer shell of the rod seat 16 is tightly connected with the receiving plate 7. The rod seat 16 is provided with a plurality of inner grooves, and the inner grooves of the rod seat 16 are all provided with slide bars 17, and the slide bars 17 can slide along the inner grooves of the rod seat 16. The bottom end of the slide bar 17 is fixedly connected with a support 8, and the support 8 is provided with a seat protruding outward, and a through installation opening 18 is provided in the seat, and a grounding connector 9 is fixedly installed in the installation opening 18, and the upper end of the grounding connector 9 is a wire interface end, and the lower part of the grounding connector 9 is a cylinder, and a plug for easy docking is provided in the cylinder.

[0024] The side of the support 8 is provided with a through screw hole 19, and a limit rod 20 is installed in the screw hole 19. The limit rod 20 is threadedly matched with the screw hole 19, and a ring 21 is fixedly installed at the end of the limit rod 20. The receiving plate 7 is provided with a limit hole 22 for the limit rod 20 to enter, and the height position of the limit hole 22 is flush with the bottom surface of the rod seat 16. By setting the matching structure of the limit rod 20 and the limit hole 22, the stability of the slide rod 17 when it is fully retracted into the rod seat 16 can be ensured, thereby ensuring that the slide rod 17 will not slide down out of the rod seat 16.

[0025] A resistance box 10 is fixedly placed on one side of the support rod 1, and a plurality of wiring sockets 11 that can be connected to the ground wire connector 9 are installed on the resistance box 10. A plurality of evenly distributed fastening plates 23 are fixedly installed on the resistance box 10, and the wiring sockets 11 are arranged inside the fastening plates 23; and the depth of the wiring socket 11 is less than the length of the ground wire connector 9. When conducting ground resistance measurement training, power workers can insert the plug of the ground wire connector 9 into the wiring socket 11.

[0026] The working principle of the utility model is:

[0027] When conducting ground resistance measurement training, power workers can use a wire to connect the ground wire connector 8 to the industrial control integrated machine in advance, and can preset the resistance value of each wiring socket 11 through the resistance box 10. The power workers pull the load-bearing plate 5 to perform linear displacement along the guide rail 3 to move the ground wire connector 9 to the top of the wiring socket 11 of the corresponding resistance value, and screw the limit rod 20 through the ring 21 to disengage the limit rod 20 from the limit hole 22, and pull the sliding rod 17 downward to move the rod seat 16 downward, thereby connecting the ground wire connector 9 with the wiring socket 11. The ground resistance can be measured on the industrial control integrated machine to determine whether the power worker is connected to the correct wiring socket 11.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ground resistance measurement simulation device, comprising a support rod (1), characterized in that: A tabletop (2) is fixedly mounted on the support rod (1), a guide rail (3) and a trough body (4) are mounted on the tabletop (2), a load-bearing plate (5) is slidably mounted on the guide rail (3), the inner top of the load-bearing plate (5) is connected to the inner bottom plate of the trough body (4) via a drag chain (6), a receiving plate (7) is fixedly mounted on the outer bottom of the load-bearing plate (5), a vertically movable support (8) is arranged on the side of the receiving plate (7), and a grounding connector (9) is fixedly mounted on the support (8); a resistor box (10) is fixedly placed on one side of the support rod (1), and a plurality of wiring sockets (11) that can be connected to the grounding connector (9) are mounted on the resistor box (10).

2. A ground resistance measurement simulation device according to claim 1, characterized in that: A first right-angle plate (12) is fixedly installed on the top of the inner end of the load-bearing plate (5), a second right-angle plate (13) is arranged on the rear side of the first right-angle plate (12), a through groove (14) is opened on the vertical surface of the first right-angle plate (12), a bolt which is fastened to the second right-angle plate (13) is installed in the through groove (14), and the drag chain (6) is fastened to the top of the second right-angle plate (13).

3. A ground resistance measurement simulation device according to claim 1, characterized in that: The inner bottom plate of the trough body (4) is provided with a plurality of through holes (15), and the drag chain (6) can be fastened to the through holes (15) by bolts.

4. A ground resistance measurement simulation device according to claim 1, characterized in that: A rod seat (16) is fixedly installed on the outer surface of the receiving plate (7), and a plurality of sliding rods (17) are slidably installed in the rod seat (16). The bottom ends of the sliding rods (17) are tightly connected to the support (8), and a through installation opening (18) is formed on the support (8), and the grounding connector (9) is fixedly installed in the installation opening (18).

5. A ground resistance measurement simulation device according to claim 4, characterized in that: A through screw hole (19) is provided on the side of the support (8), a limit rod (20) is installed in the screw hole (19), a circular ring (21) is fixedly installed on the end of the limit rod (20), and a limit hole (22) is provided on the receiving plate (7) for the limit rod (20) to enter, and the height position of the limit hole (22) is flush with the bottom surface of the rod seat (16).

6. A ground resistance measurement simulation device according to claim 1, characterized in that: A plurality of evenly distributed fastening plates (23) are fixedly mounted on the resistance box (10), the wiring socket (11) is arranged inside the fastening plate (23), and the depth of the wiring socket (11) is less than the length of the ground wire connector (9).

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