Ring main unit temporary grounding device

Abstract

The utility model discloses a ring main unit temporary grounding device, which relates to the ring main unit technology field, and comprises a disc, the bottom of the disc is connected with an insertion rod, the disc is inserted into the ground through the slender insertion rod, a hand wheel drives a drill rod to rotate, the drill rod is inserted into the ground more deeply, and spiral lines on the surface of the drill rod can increase the friction force between the drill rod and the ground. The contact area between a rectangular plate and soil can be increased by inserting the rectangular plate into the ground, so that the stability of the structure is improved, the contact area between the rectangular plate and the ground is further increased by sliding out a sliding plate in a sliding groove, and the bottom of the rectangular plate and the sliding plate are inserted into the soil more easily by arranging a chamfer; and the first threaded rod rotates to conveniently push the second rectangular block to drive the sliding plate to extend out.

Description

Technical Field

[0001] The utility model relates to the technical field of ring network cabinets, in particular to a temporary grounding device for a ring network cabinet. Background Art

[0002] Ring main unit (Ring Main Unit) is a group of electrical transmission and distribution equipment (high-voltage switchgear) installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring network power supply unit. Its core part adopts load switches and fuses, which has the advantages of simple structure, small size, low price, and can improve power supply parameters and performance as well as power supply safety. It is widely used in distribution stations and box-type substations in load centers such as urban residential areas, high-rise buildings, large public buildings, factories and enterprises. The so-called "ring main unit" is that each distribution branch is equipped with a switch cabinet (outgoing switch cabinet). The busbar of this switch cabinet is also part of the ring trunk line, that is, the ring trunk line is composed of the busbars of each outgoing cabinet connected together; each outgoing cabinet is called a "ring main unit", and the equipment in the ring main unit needs to be shut down for maintenance.

[0003] For example, the Chinese patent publication number is CN110943372A, and the technical solution disclosed in the patent document is as follows: a temporary grounding device for a ring network cabinet, which includes a ring network cabinet, an insulating rod and a grounding box, a top cover is arranged on the top of the ring network cabinet, closed doors are arranged on both sides of the front of the ring network cabinet, a handle is arranged in the middle of the left side in front of the right closed door, and heat dissipation windows are arranged in the middle of the front lower part of the closed doors on both sides, a base is arranged at the bottom of the ring network cabinet, an annular protrusion is arranged below the insulating rod, a conductive strip is arranged on the annular protrusion, an identification probe is arranged below the annular protrusion, a cable is arranged on the top of the insulating rod, a box cover is arranged on the top of the grounding box, a third lock is arranged in the middle of the upper inner side of the box cover, a placement groove is arranged on the upper left side of the inside of the grounding box, a cable groove is arranged above the placement groove, a grounding hole is arranged on the right side of the placement groove, an insulating sleeve groove is arranged on the right side of the grounding hole, a locking hole is arranged below the grounding hole, and a wire outlet hole is arranged on the right side of the locking hole; the utility model has the advantages of insulation, closure, high safety and easy use.

[0004] The existing technology has the following problems:

[0005] In this solution, a person holds the insulating rod and places it into the grounding hole on the grounding box. During the placement process, the identification probe and the insulating rod will squeeze the compression springs on both sides of the clamp, causing them to deform and facilitate placement into the grounding hole. However, this connection method has relatively poor insertion stability and is prone to loosening due to the relatively smooth surface of the insulating rod. Utility Model Content

[0006] The utility model provides a temporary grounding device for a ring network cabinet to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a temporary grounding device for a ring main unit, comprising a disc, the bottom of which is connected with a plug rod;

[0008] One end of the bottom of the plug rod is conical, and a hand wheel is arranged above the disc, and the hand wheel is fixedly connected to one end of the top of the drill rod through a rotating shaft penetrating the disc;

[0009] Three groups of stabilizing components are arranged above the disc at an angle of 120 degrees and are evenly distributed. Three groups of clamping components are arranged above the disc at an angle of 120 degrees and are evenly distributed. The three groups of stabilizing components and the three groups of clamping components are staggered.

[0010] The above technical solution is adopted, which inserts a relatively slender rod into the ground, and drives the drill rod to rotate through a hand wheel, so that it penetrates deeper into the ground, and the spiral texture on the surface of the drill rod can increase the friction between the drill rod and the ground.

[0011] A further improvement of the technical solution of the utility model is that: the stabilizing component includes a rectangular plate, and the rectangular plate is fixedly connected to the outer wall of the disc.

[0012] The above technical solution is adopted, which can increase the contact area with the soil by inserting the rectangular plate into the ground, so as to increase the stability of the structure.

[0013] A further improvement of the technical solution of the utility model is that: the stabilizing component also includes a slide groove, the slide groove is arranged on a side of the rectangular plate away from the disc, and the inner wall of the slide groove is slidably connected with a slide plate.

[0014] The above technical solution is adopted, which further increases the contact area with the ground by sliding the slide plate in the slide groove out.

[0015] A further improvement of the technical solution of the utility model is that: the bottom of the rectangular plate and the side of the slide plate away from the inner wall of the slide groove are respectively provided with chamfers of thirty degrees.

[0016] The above technical solution is adopted, which makes it easier for the bottom of the rectangular plate and the slide plate to be inserted into the soil by setting chamfers.

[0017] A further improvement of the technical solution of the utility model is that the stabilizing component includes a first rectangular block, the first rectangular block is fixedly connected to the top of the disc near the rectangular plate, the top of the skateboard is fixedly connected to a second rectangular block, the first rectangular block is rotatably connected to a first threaded rod on one side close to the second rectangular block through a bearing, and the first threaded rod passes through the second rectangular block and is threadedly connected.

[0018] The above technical solution is adopted, which facilitates pushing the second rectangular block to drive the slide plate to extend by rotating the first threaded rod.

[0019] A further improvement of the technical solution of the utility model is that: one end of the first threaded rod away from the first rectangular block is fixedly connected with a first knob.

[0020] The above technical solution is adopted, which facilitates the force applied when the first threaded rod is rotated by setting a first knob.

[0021] A further improvement of the technical solution of the utility model is that the clamping assembly includes a second threaded rod, which is rotatably connected to the top of the disc through a bearing, and the top of the disc is fixedly connected to limit plates at both sides of the second threaded rod, a pressure plate is slidably connected between the two limit plates, and the outer wall of the disc is fixedly connected to a support block at a position below the pressure plate.

[0022] The above technical solution is adopted, which forms a passage and fixes the ground wire connector by placing the ground wire connector of the ring network cabinet between the pressure plate and the support block and sliding the pressure plate between the limit plates to press the ground wire connector.

[0023] A further improvement of the technical solution of the utility model is that one end of the top of the second threaded rod passes through the pressure plate and is threadedly connected, and one end of the top of the second threaded rod is fixedly connected to the second knob.

[0024] The above technical solution is adopted. By setting the second threaded rod through the second knob, the second threaded rod can be rotated to push the pressure plate to press the connector of the ground wire, and the threaded connection has a high self-locking property.

[0025] A further improvement of the technical solution of the utility model is that: a spring is fixedly connected to the top of the support block, and a fixing plate is fixedly connected to the top of the spring.

[0026] The above technical solution is adopted, which arranges a spring connected to the fixed plate above the support block, and uses the tension of the spring to push the fixed plate to continuously apply pressure in the direction of the pressure plate, so as to facilitate the reinforcement of the fixation of the ground wire connector.

[0027] A further improvement of the technical solution of the utility model is that a row of anti-slip strips is fixedly connected to the top of the fixing plate.

[0028] The above technical solution is adopted, which increases friction by providing an anti-slip strip on the top of the fixing plate, thereby further improving the stability of the connection.

[0029] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0030] 1. The utility model provides a temporary grounding device for a ring main unit, which is inserted into the ground through a relatively slender rod, and the drill rod is driven to rotate by a hand wheel to penetrate deeper into the ground. The spiral texture on the surface of the drill rod can increase the friction between the drill rod and the ground. By inserting a rectangular plate into the ground, the contact area with the soil can be increased to increase the stability of the structure.

[0031] 2. The utility model provides a temporary grounding device for a ring network cabinet, which further increases the contact area with the ground by sliding out the slide plate in the slide groove, and makes it easier to insert the bottom of the rectangular plate and the slide plate into the soil by setting the chamfer. The first threaded rod is rotated to facilitate pushing the second rectangular block to drive the slide plate to extend.

[0032] 3. The utility model provides a temporary grounding device for a ring network cabinet, which places the ground wire connector of the ring network cabinet between the pressure plate and the support block, and presses the ground wire connector by sliding the pressure plate between the limit plates to form a passage and fix it. By setting a second threaded rod through a second knob, the second threaded rod can be rotated to push the pressure plate to press the ground wire connector, and the threaded connection has a high self-locking property. By setting a spring to connect the fixed plate above the support block, the fixed plate is pushed to continuously apply pressure in the direction of the pressure plate by the tension of the spring, so as to facilitate the reinforcement of the fixation of the ground wire connector. By setting an anti-slip strip on the top of the fixed plate, the friction force is increased to further improve the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a front view of a temporary grounding device for a ring main unit according to the utility model;

[0034] Figure 2 This is a top view of a temporary grounding device for a ring main unit according to the utility model;

[0035] Figure 3 This is a bottom view of a temporary grounding device for a ring main unit according to the utility model;

[0036] Figure 4 This is an enlarged view of a temporary grounding device A of a ring main unit of the utility model;

[0037] Figure 5 This is an enlarged view of a temporary grounding device B of a ring main unit of the utility model;

[0038] Figure 6 It is a side view of a temporary grounding device for a ring main unit of the utility model;

[0039] Figure 7 It is an enlarged view of a temporary grounding device C of a ring main unit according to the utility model.

[0040] In the figure: 1. disc; 2. drill rod; 3. insertion rod; 4. hand wheel; 5. stabilizing assembly; 51. rectangular plate; 52. slide groove; 53. slide plate; 54. first rectangular block; 55. second rectangular block; 56. first threaded rod; 57. first knob; 6. clamping assembly; 61. second threaded rod; 62. limit plate; 63. pressure plate; 64. second knob; 65. support block; 66. spring; 67. fixing plate; 68. anti-slip strip. DETAILED DESCRIPTION

[0041] Example 1

[0042] like Figure 1 , 2 As shown in Figures 3 and 4, the utility model provides a temporary grounding device for a ring network cabinet, including a disc 1, a plug rod 3 is connected to the bottom of the disc 1, one end of the bottom of the plug rod 3 is conical, a hand wheel 4 is arranged above the disc 1, the hand wheel 4 passes through the disc 1 and is fixedly connected to one end of the top of the drill rod 2 through a rotating shaft, three groups of stabilizing components 5 are arranged above the disc 1 at 120 degrees and are evenly separated, three groups of clamping components 6 are arranged above the disc 1 at 120 degrees and are evenly separated, and the three groups of stabilizing components 5 and the three groups of clamping components 6 are staggered. The drill rod 2 is inserted into the ground, and the hand wheel 4 drives the drill rod 2 to rotate, so that it penetrates deeper into the ground. The spiral texture on the surface of the drill rod 2 can increase the friction between the drill rod 2 and the ground. The stabilizing component 5 includes a rectangular plate 51, and the rectangular plate 51 is fixedly connected to the outer wall of the disc 1. This solution inserts a relatively slender insertion rod 3 into the ground, and the hand wheel 4 drives the drill rod 2 to rotate, so that it penetrates deeper into the ground. The spiral texture on the surface of the drill rod 2 can increase the friction between the drill rod 2 and the ground. By inserting the rectangular plate 51 into the ground, the contact area with the soil can be increased to increase the stability of the structure.

[0043] In this embodiment, a relatively slender insertion rod 3 is inserted into the ground, and the drill rod 2 is driven to rotate by the handwheel 4 to penetrate deeper into the ground. The spiral texture on the surface of the drill rod 2 can increase the friction between the drill rod 2 and the ground. By inserting the rectangular plate 51 into the ground, the contact area with the soil can be increased to increase the stability of the structure.

[0044] Example 2

[0045] like Figure 1 , 4As shown in Figure 5, on the basis of Example 1, the utility model provides a technical solution: preferably, the stabilizing component 5 also includes a slide groove 52, the slide groove 52 is opened on the side of the rectangular plate 51 away from the disc 1, and the inner wall of the slide groove 52 is slidably connected with a slide plate 53. This solution further increases the contact area with the ground by sliding the slide plate 53 in the slide groove 52 out. The bottom of the rectangular plate 51 and the side of the slide plate 53 away from the inner wall of the slide groove 52 are respectively provided with a chamfer of 30 degrees. This solution makes it easier to insert the bottom of the rectangular plate 51 and the slide plate 53 into the soil by setting the chamfer. The stabilizing component 5 includes a first rectangular block 54, the first rectangular block 54 is fixedly connected to the top of the disc 1 near the rectangular plate 51, the top of the slide plate 53 is fixedly connected with a second rectangular block 55, and the second rectangular block 56 is fixedly connected to the top of the slide plate 53. A first threaded rod 56 is rotatably connected to one side of a rectangular block 54 close to the second rectangular block 55 through a bearing, and the first threaded rod 56 penetrates the second rectangular block 55 and is threadedly connected. This scheme facilitates pushing the second rectangular block 55 to extend the slide plate 53 by rotating the first threaded rod 56, and the first threaded rod 56 is fixedly connected to the first knob 57 at one end away from the first rectangular block 54. This scheme further increases the contact area with the ground by sliding the slide plate 53 in the slide groove 52 out. By setting a chamfer, it is easier for the bottom of the rectangular plate 51 and the slide plate 53 to be inserted into the soil. The first threaded rod 56 is rotatably set, and the second rectangular block 55 is conveniently pushed to extend the slide plate 53 by rotating the first threaded rod 56.

[0046] In this embodiment, the contact area with the ground is further increased by sliding the slide plate 53 in the slide groove 52 out, and the bottom of the rectangular plate 51 and the slide plate 53 are inserted into the soil more easily by setting the chamfer. The first threaded rod 56 is rotated to facilitate pushing the second rectangular block 55 to drive the slide plate 53 to extend.

[0047] Example 3

[0048] like Figure 1 , 6As shown in , 7, on the basis of Example 1, the utility model provides a technical solution: preferably, the clamping assembly 6 includes a second threaded rod 61, the second threaded rod 61 is rotatably connected to the top of the disc 1 through a bearing, the top of the disc 1 is fixedly connected to the limiting plates 62 at the positions on both sides of the second threaded rod 61, the position between the two limiting plates 62 is slidably connected with a pressure plate 63, and the outer wall of the disc 1 is fixedly connected with a support block 65 at the position below the pressure plate 63. This solution places the ground wire connector of the ring network cabinet between the pressure plate 63 and the support block 65, and slides and presses the ground wire connector between the limiting plates 62 to form a passage and fix it. One end of the top of the second threaded rod 61 passes through the pressure plate 63 and is threadedly connected, and one end of the top of the second threaded rod 61 is fixedly connected with a second knob 64. This solution can rotate the second threaded rod 61 through the second knob 64 to push the pressure plate 63 to press the ground wire connector , and the threaded connection has a high self-locking property. A spring 66 is fixedly connected to the top of the support block 65, and a fixing plate 67 is fixedly connected to the top of the spring 66. The scheme arranges a spring 66 to connect the fixing plate 67 above the support block 65, and places the ground wire connector of the ring network cabinet between the pressure plate 63 and the support block 65. The pressure plate 63 is slid between the limit plates 62 to press the ground wire connector to form a passage and fix it. By arranging a second threaded rod 61 through a second knob 64, the second threaded rod 61 can be rotated to push the pressure plate 63 to press the ground wire connector, and the threaded connection has a high self-locking property. By arranging a spring 66 to connect the fixing plate 67 above the support block 65, the fixing plate 67 is pushed to continuously apply pressure in the direction of the pressure plate 63 by the tension of the spring 66, so as to facilitate the reinforcement of the fixation of the ground wire connector. By arranging an anti-slip strip 68 on the top of the fixing plate 67, the friction force is increased, and the stability of the connection is further improved.

[0049] In this embodiment, the ground wire connector of the ring network cabinet is placed between the pressure plate 63 and the support block 65, and the pressure plate 63 is slid between the limit plates 62 to press the ground wire connector to form a passage and fix it. By setting the second threaded rod 61 through the second knob 64, the second threaded rod 61 can be rotated to push the pressure plate 63 to press the ground wire connector, and the threaded connection has a high self-locking property. By setting a spring 66 above the support block 65 to connect the fixed plate 67, the tension of the spring 66 pushes the fixed plate 67 to continuously apply pressure in the direction of the pressure plate 63, so as to facilitate the reinforcement of the fixation of the ground wire connector. By setting an anti-slip strip 68 on the top of the fixed plate 67, the friction force is increased to further improve the stability of the connection.

[0050] The following is a detailed description of the working principle of a temporary grounding device for a ring main unit.

[0051] like Figure 1-7As shown, a relatively slender insertion rod 3 is inserted into the ground, and the hand wheel 4 drives the drill rod 2 to rotate and penetrate deeper into the ground. The spiral texture on the surface of the drill rod 2 can increase the friction between the drill rod 2 and the ground. The rectangular plate 51 is inserted into the ground to increase the contact area with the soil, so as to increase the stability of the structure. The slide plate 53 in the slide groove 52 is slid out to further increase the contact area with the ground. The bottom of the rectangular plate 51 and the slide plate 53 are inserted into the soil more easily by setting a chamfer. The first threaded rod 56 is rotated to facilitate pushing the second rectangular block 55 to drive the slide plate 53 to extend. The grounding connector of the ring network cabinet is placed in the grounding connector. It is placed between the pressure plate 63 and the support block 65, and the pressure plate 63 is set to slide between the limit plates 62 to press the ground wire connector to form a passage and fix it. By setting the second threaded rod 61 through the second knob 64, the second threaded rod 61 can be rotated to push the pressure plate 63 to press the ground wire connector, and the threaded connection has a high self-locking property. By setting a spring 66 above the support block 65 to connect the fixed plate 67, the tension of the spring 66 pushes the fixed plate 67 to continuously apply pressure in the direction of the pressure plate 63, so as to facilitate the reinforcement of the fixation of the ground wire connector. By setting an anti-slip strip 68 on the top of the fixed plate 67, the friction force is increased to further improve the stability of the connection.

Claims

1. A temporary grounding device for a ring main unit, comprising a disc (1), characterized in that: The bottom of the disc (1) is rotatably connected to a drill rod (2) via a bearing, and the bottom of the drill rod (2) is connected to an insertion rod (3); The bottom end of the insertion rod (3) is in the form of a cone, and a hand wheel (4) is arranged above the disc (1). The hand wheel (4) passes through the disc (1) via a rotating shaft and is fixedly connected to one end of the top of the drill rod (2); Three groups of stabilizing components (5) are arranged above the disc (1) at an angle of 120 degrees and are evenly distributed. Three groups of clamping components (6) are arranged above the disc (1) at an angle of 120 degrees and are evenly distributed. The three groups of stabilizing components (5) and the three groups of clamping components (6) are arranged in a staggered manner.

2. A temporary grounding device for a ring main unit according to claim 1, characterized in that: The stabilizing assembly (5) comprises a rectangular plate (51), and the rectangular plate (51) is fixedly connected to the outer wall of the disc (1).

3. A temporary grounding device for a ring main unit according to claim 2, characterized in that: The stabilizing component (5) further comprises a slide groove (52), wherein the slide groove (52) is provided on a side of the rectangular plate (51) away from the disc (1), and the inner wall of the slide groove (52) is slidably connected to a slide plate (53).

4. A temporary grounding device for a ring main unit according to claim 3, characterized in that: The bottom of the rectangular plate (51) and the side of the slide plate (53) away from the inner wall of the slide groove (52) are respectively provided with chamfers of thirty degrees.

5. A temporary grounding device for a ring main unit according to claim 3, characterized in that: The stabilizing assembly (5) comprises a first rectangular block (54), the first rectangular block (54) being fixedly connected to a position on the top of the disc (1) close to the rectangular plate (51), the top of the slide plate (53) being fixedly connected to a second rectangular block (55), a first threaded rod (56) being rotatably connected to a side of the first rectangular block (54) close to the second rectangular block (55) via a bearing, and the first threaded rod (56) passing through the second rectangular block (55) and being threadedly connected.

6. A temporary grounding device for a ring main unit according to claim 5, characterized in that: One end of the first threaded rod (56) away from the first rectangular block (54) is fixedly connected to a first knob (57).

7. A temporary grounding device for a ring main unit according to claim 1, characterized in that: The clamping assembly (6) comprises a second threaded rod (61), the second threaded rod (61) being rotatably connected to the top of the disc (1) via a bearing, the top of the disc (1) being fixedly connected to limit plates (62) at positions on both sides of the second threaded rod (61), a pressure plate (63) being slidably connected at a position between the two limit plates (62), and the outer wall of the disc (1) being fixedly connected to a support block (65) at a position below the pressure plate (63).

8. A temporary grounding device for a ring main unit according to claim 7, characterized in that: One end of the top of the second threaded rod (61) passes through the pressure plate (63) and is threadedly connected, and one end of the top of the second threaded rod (61) is fixedly connected to a second knob (64).

9. A temporary grounding device for a ring main unit according to claim 7, characterized in that: The top of the support block (65) is fixedly connected to a spring (66), and the top of the spring (66) is fixedly connected to a fixing plate (67).

10. A temporary grounding device for a ring main unit according to claim 9, characterized in that: A row of anti-slip strips (68) is fixedly connected to the top of the fixing plate (67).

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