Electrical test grounding device

Abstract

The utility model discloses an electrical test grounding device, and belongs to the technical field of grounding parts. An electrical test grounding device comprises a mounting plate, a fixing column and a binding post are arranged on the mounting plate in a penetrating mode, a fixing block used for being connected with an electrical appliance wire is arranged at one end of the binding post, an insertion block is arranged at the bottom of the fixing column, and a cavity is formed in the portion, located above the insertion block, of the fixing column. A pushing mechanism is arranged on the inner side of the cavity, the working end of the pushing mechanism is rotationally connected with an extending clamping rod, a separation block is arranged at the end, away from the pushing mechanism, of the extending clamping rod, and openings are formed in the two sides of the separation block; the grounding device has the advantages of being more stable after being inserted into soil, and being convenient for long-time grounding use.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding components, in particular to an electrical test grounding device. Background Art

[0002] Electrical testing is carried out before electrical systems and electrical equipment are put into use to determine whether there are any quality problems in their installation or manufacturing, so as to determine whether newly installed or operating electrical equipment can be put into normal operation. The insulation performance, electrical characteristics and mechanical properties of each electrical equipment unit in the electrical system are tested. The existing grounding device is easy to loosen after being inserted into the ground soil. Once the grounding pole becomes loose or poorly connected, it will not only affect the test results of the electrical test, but also pose a great safety hazard, endangering life and property safety.

[0003] The utility model patent with publication number CN208767473U discloses a special grounding device for electrical testing. The structure includes a fixed plate, and rotating blocks are movably connected on both sides of the fixed plate. The two rotating blocks are symmetrical about the axis of the fixed plate. The advantage of this structure is that through the action of the protective pad, the clamping piece can clamp the wire more stably, thereby achieving the effect of preventing the wire from detaching. In addition, the cooperation of the threaded bolt and the push rod limits the position of the clamp fixing the wire. In addition, the cooperation of the stabilizing rod and the limit spring, and the use of the resilience of the limit spring, can facilitate the adjustment of the distance between the two clamps.

[0004] However, in actual use, the device inserts the positioning rod into the soil by twisting the twist block and fixes it with a retaining rod on one side. After the positioning rod is inserted into the soil, the positioning rod rotates into the soil, which will make the soil loose, making it inconvenient to fix the grounding device for a long time and affecting stability. Utility Model Content

[0005] The utility model aims to solve the problem that after the positioning rod is inserted into the soil, the positioning rod rotates into the soil, which makes the soil loose, making it inconvenient to fix the grounding device for a long time and affecting the stability.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An electrical test grounding device comprises a mounting plate, wherein a fixing column and a terminal are provided through the mounting plate, a fixing block for connecting an electrical wire is provided at one end of the terminal, an insertion block is provided at the bottom of the fixing column, a cavity is provided inside the fixing column located above the insertion block, a pushing mechanism is provided on the inner side of the cavity, a protruding clamping rod is rotatably connected to the working end of the pushing mechanism, a separation block is provided at the end of the protruding clamping rod away from the pushing mechanism, and openings are provided on both sides of the separation block.

[0008] Furthermore, the pushing mechanism includes an electric push rod with a base installed in the cavity, a pushing disk is provided at the working end of the electric push rod, a rotating chassis is provided at one end of the pushing disk away from the electric push rod, and the extending clamping rod is rotatably installed on the pushing disk through the rotating chassis.

[0009] Furthermore, the end of the protruding clamping rod close to the separation block is an arc-shaped structure, and / or the separation block is a V-shaped structure with the tip facing the protruding clamping rod.

[0010] Furthermore, the fixing column is movably arranged in the mounting plate.

[0011] Furthermore, a column head is provided on the top of the fixing column.

[0012] Furthermore, the terminal is screwed to the mounting plate.

[0013] Furthermore, an adjusting nut is provided on one side of the terminal post close to the fixing block.

[0014] Furthermore, a slide groove is provided on the surface of the terminal, an electric telescopic rod is arranged inside the slide groove, an annular cleaning brush is sleeved on the surface of the terminal, and the working end of the electric telescopic rod is connected to the annular cleaning brush.

[0015] Furthermore, a square hole is formed on the fixing block, the square hole passes through the fixing block, and a wire clamp structure is disposed inside the square hole.

[0016] Furthermore, the wire clamp structure includes a first arc-shaped clamping plate and a second arc-shaped clamping plate for clamping the wire, the second arc-shaped clamping plate is fixedly installed on the inner side of the square hole, and a threaded rod is provided at one end of the first arc-shaped clamping plate away from the second arc-shaped clamping plate, the threaded rod is screwed to the fixed block, and the threaded rod is rotationally connected to the first arc-shaped clamping plate.

[0017] Compared with the prior art, the utility model provides an electrical test grounding device, which has the following beneficial effects:

[0018] The utility model discloses an electrical test grounding device. When in use, the wire of the electrical equipment to be tested is connected with the fixed block, the fixed column and the terminal are inserted into the ground, and then the pushing mechanism is started to extend, and the clamping rod is pushed to extend. The end of the extended clamping rod away from the pushing mechanism opens to both sides under the action of the separation block, and extends from the opening to the outside of the fixed column and is inserted into the soil, so that the fixed column is clamped in the longitudinal and transverse directions. Compared with the prior art, the loosening of the soil is reduced, the stability is stronger, and it is suitable for long-term fixed use.

[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the fixed column of the utility model;

[0022] Figure 3 This is a schematic diagram of the terminal structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the fixed block structure of the utility model.

[0024] In the figure:

[0025] 1. Mounting plate; 2. Fixed column; 3. Column head; 4. Cavity; 5. Electric push rod; 6. Push plate; 7. Rotating chassis; 8. Extending clamping rod; 9. Insertion block; 10. Separation block; 11. Terminal; 12. Adjustment nut; 13. Conical head; 14. Slide; 15. Electric telescopic rod; 16. Annular cleaning brush; 17. Fixed block; 18. Square hole; 19. Threaded rod; 20. Rotating block; 21. First arc-shaped splint; 22. Second arc-shaped splint; 23. Anti-slip pad. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Reference Figure 1-4 The utility model discloses an electrical test grounding device, comprising a mounting plate 1, on which a fixing column 2 and a terminal 11 are provided, one end of the terminal 11 is provided with a fixing block 17 for connecting an electrical wire, an insertion block 9 is provided at the bottom of the fixing column 2, a cavity 4 is provided inside the fixing column 2 located above the insertion block 9, a pushing mechanism is provided inside the cavity 4, a working end of the pushing mechanism is rotatably connected with an extending clamping rod 8, a separation block 10 is provided at one end of the extending clamping rod 8 away from the pushing mechanism, and openings are provided on both sides of the separation block 10.

[0028] The fixing column 2 and the terminal 11 penetrate the mounting plate 1 in the vertical direction. The top of the terminal 11 is fixedly connected to the fixing block 17. The insertion block 9 and the conical head 13 are both conical. When the pushing mechanism is extended downward, the extended card rod 8 is driven to move downward. After the lower end of the extended card rod 8 contacts the separation block 10, it opens to both sides, and then extends from the opening to the outside of the fixing column 2 and is inserted into the soil.

[0029] The pushing mechanism includes an electric push rod 5 whose base is installed in the cavity 4. A pushing plate 6 is provided at the working end of the electric push rod 5. A rotating chassis 7 is provided at the end of the pushing plate 6 away from the electric push rod 5. An extended clamping rod 8 is rotatably installed on the pushing plate 6 through the rotating chassis 7.

[0030] The base of the electric push rod 5 is fixed on the top of the cavity 4. When the working end of the electric push rod 5 is extended, it drives the push plate 6, and the push plate 6 drives the rotating chassis 7 and the extending clamping rod 8 to move downward. The top end of the extending clamping rod 8 can rotate to both sides with the rotating chassis 7 as the center.

[0031] The end of the extended clamping rod 8 close to the separation block 10 is an arc-shaped structure, and / or the separation block 10 is a V-shaped structure with the tip facing the extended clamping rod 8 .

[0032] The arc-shaped structure and the V-shaped structure in the present application are at least one of the two, and the bottom ends of the two extended card rods 8 are arc-shaped structures. The arc-shaped structure enables the extended card rods 8 to start to open and slide to both sides of the inclined surface of the separation block 10 when they contact the separation block 10, so that the two extended card rods 8 open to both sides;

[0033] The separation block 10 is located in the middle of the top of the insertion block 9 , and openings are opened on both sides of the bottom of the cavity 4 .

[0034] The fixing column 2 is movably arranged in the mounting plate 1 .

[0035] The connection between the fixing column 2 and the mounting plate 1 can be screwed, and when in use, the fixing column 2 is screwed into the ground, or it can be slidably connected through a through hole, and when in use, the fixing column 2 is directly pressed into the ground.

[0036] A column head 3 is provided on the top of the fixed column 2 .

[0037] When the fixing column 2 is slidably connected with the mounting plate 1, the fixing column 2 can be cylindrical or hexagonal. When in use, the column head 3 is knocked or pressed down to press the fixing column 2 into the ground. When the fixing column 2 is screwed with the mounting plate 1, the column head 3 can be a hexagonal column, which is convenient for screwing the fixing column into the ground with a wrench. The column head 3 can also be other shapes, and then a hexagonal countersunk hole is processed at the top of the column head 3, and the column head 3 is screwed with an inner hexagon wrench.

[0038] The terminal 11 is screwed to the mounting plate 1 .

[0039] By twisting the terminal post 11 , the relative position between the terminal post 11 and the mounting plate 1 can be adjusted, and the length of the terminal post 11 extending from the bottom of the mounting plate 1 can be adjusted.

[0040] An adjusting nut 12 is provided on one side of the terminal post 11 close to the fixing block 17 .

[0041] After the binding post 11 is turned to adjust the relative position with the mounting plate 1 , the adjusting nut 12 is then turned to make the adjusting nut abut against the mounting plate 1 to prevent the binding post 11 from rotating freely.

[0042] A slide groove 14 is provided on the surface of the terminal post 11 , an electric telescopic rod 15 is arranged inside the slide groove 14 , an annular cleaning brush 16 is sleeved on the surface of the terminal post 11 , and a working end of the electric telescopic rod 15 is connected to the annular cleaning brush 16 .

[0043] The outside of the annular cleaning brush 16 is an annular plate, and bristles are evenly distributed on the inner wall of the annular plate. A slider is provided at the working end of the electric telescopic rod 15. One end of the slider is connected to the electric telescopic rod 15, and the other end is connected to the inner wall of the annular plate. The slider is slidably installed in the slide groove 14. When the electric telescopic rod 15 is extended or retracted, the slider and the annular cleaning brush 16 seat are driven to move up and down to clean the dirt on the surface of the terminal 11.

[0044] A square hole 18 is formed on the fixing block 17 . The square hole 18 passes through the fixing block 17 . A wire clamp structure is disposed inside the square hole 18 .

[0045] The square hole 18 is opened in the horizontal direction. When in use, the wire is inserted into the square hole 18, clamped and fixed by the wire clamp structure, and connected to the device.

[0046] The wire clamp structure includes a first arc-shaped clamping plate 21 and a second arc-shaped clamping plate 22 for clamping the wire. The second arc-shaped clamping plate 22 is fixedly installed on the inner side of the square hole 18. A threaded rod 19 is provided at one end of the first arc-shaped clamping plate 21 away from the second arc-shaped clamping plate 22. The threaded rod 19 is screwed to the fixed block 17, and the threaded rod 19 is rotatably connected to the first arc-shaped clamping plate 21.

[0047] A rotating block 20 is fixed to the top of the threaded rod 19. By rotating the threaded rod 19, the first arc-shaped clamping plate 21 can be driven to move closer to or away from the second arc-shaped clamping plate 22. When fixing the wire, the wire is passed between the first arc-shaped clamping plate 21 and the second arc-shaped clamping plate 22, and then the threaded rod 19 is twisted to clamp the wire.

[0048] Anti-skid pads 23 may be installed inside the first arc-shaped clamping plate 21 and the second arc-shaped clamping plate 22. The anti-skid pads 23 are made of metal gaskets with oil-resistant anti-skid patterns on the surface, so that the wire clamp structure is more stable and conductive when clamping the wire.

[0049] Working principle: When in use, extend the wire of the electrical equipment to be tested between the first arc-shaped clamping plate 21 and the second arc-shaped clamping plate 22, and twist the threaded rod 19 to drive the first arc-shaped clamping plate 21 to clamp the wire;

[0050] Insert the fixing column 2 and the terminal 11 into the ground, then start the electric push rod 5 to extend, push the extended clamping rod 8 to move downward, the bottom end of the extended clamping rod 8 opens to both sides under the separation action of the separation block, and extends from the opening to the outside of the fixing column 2 and inserts into the soil, thereby clamping the fixing column 2 in the longitudinal and transverse directions;

[0051] When the surface of the terminal post 11 is stained with mud, the electric telescopic rod 15 is started to drive the annular cleaning brush 16 to move up and down to clean the mud on the surface of the terminal post 11.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0054] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An electrical test grounding device, comprising a mounting plate (1), wherein a fixing column (2) and a terminal (11) are provided through the mounting plate (1), and a fixing block (17) for connecting an electrical wire is provided at one end of the terminal (11), wherein: An insertion block (9) is provided at the bottom of the fixed column (2); a cavity (4) is provided inside the fixed column (2) above the insertion block (9); a pushing mechanism is provided inside the cavity (4); a protruding clamping rod (8) is rotatably connected to the working end of the pushing mechanism; a separation block (10) is provided at one end of the protruding clamping rod (8) away from the pushing mechanism; and openings are provided on both sides of the separation block (10).

2. An electrical test grounding device according to claim 1, characterized in that: The pushing mechanism comprises an electric push rod (5) whose base is installed in a cavity (4); a pushing disk (6) is provided at the working end of the electric push rod (5); a rotating chassis (7) is provided at one end of the pushing disk (6) away from the electric push rod (5); and the extending clamping rod (8) is rotatably mounted on the pushing disk (6) via the rotating chassis (7).

3. An electrical test grounding device according to claim 2, characterized in that: The end of the extended clamping rod (8) close to the separation block (10) is an arc-shaped structure, and / or the separation block (10) is a V-shaped structure with the tip facing the extended clamping rod (8).

4. An electrical test grounding device according to claim 2, characterized in that: The fixing column (2) is movably arranged in the mounting plate (1).

5. An electrical test grounding device according to claim 4, characterized in that: A column head (3) is provided on the top of the fixed column (2).

6. An electrical test grounding device according to claim 1, characterized in that: The terminal (11) is screwed to the mounting plate (1).

7. An electrical test grounding device according to claim 6, characterized in that: An adjusting nut (12) is provided on one side of the terminal post (11) close to the fixing block (17).

8. An electrical test grounding device according to claim 1, characterized in that: The surface of the terminal post (11) is provided with a slide groove (14), an electric telescopic rod (15) is arranged inside the slide groove (14), an annular cleaning brush (16) is sleeved on the surface of the terminal post (11), and a working end of the electric telescopic rod (15) is connected to the annular cleaning brush (16).

9. An electrical test grounding device according to claim 1, characterized in that: The fixing block (17) is provided with a square hole (18), the square hole (18) passes through the fixing block (17), and a wire clamp structure is provided inside the square hole (18).

10. An electrical test grounding device according to claim 9, characterized in that: The wire clamp structure comprises a first arc-shaped clamping plate (21) and a second arc-shaped clamping plate (22) for clamping a wire, wherein the second arc-shaped clamping plate (22) is fixedly mounted inside a square hole (18), and a threaded rod (19) is provided at one end of the first arc-shaped clamping plate (21) away from the second arc-shaped clamping plate (22), wherein the threaded rod (19) is screwed to a fixing block (17), and the threaded rod (19) is rotationally connected to the first arc-shaped clamping plate (21).

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