Electricity testing grounding ring

Abstract

The utility model discloses an electricity testing grounding ring which comprises a main shell and an auxiliary shell, the inner top wall of the main shell is provided with a first clamping block, the inner wall of the main shell is slidably connected with a supporting rod, the top of the supporting rod is provided with a second clamping block, the bottom of the supporting rod is fixedly provided with a grounding ring, and the top of the main shell is provided with a limiting mechanism. The limiting mechanism comprises a long plate arranged on the lower surface of the main shell, the inner wall of the long plate is rotationally connected with a threaded rod, the surface of the threaded rod is in threaded connection with an insertion block, the surface of the supporting rod is provided with an insertion groove matched with the insertion block, and the side face of the long plate is provided with a circular ring. Compared with the prior art, the electricity testing grounding ring is provided with the first clamping block, the second clamping block and the limiting mechanism, and the teeth are meshed with the arc-shaped rack, so that the threaded rod can be limited, the threaded rod cannot move after being limited, and in the same way, the insertion block cannot deviate; therefore, the first clamping block and the second clamping block can stably fix the cable for a long time.

Description

Technical Field

[0001] The utility model relates to the field of electric power maintenance, and more specifically, to an electric power testing grounding ring. Background Art

[0002] The lightning protection and electrical testing grounding ring is a protective device that prevents overhead insulated wires from being broken by lightning and is used for electrical testing and temporary grounding during maintenance and construction.

[0003] After searching, the existing patent (application number: 202022346136.1) discloses an electrical testing grounding ring device. The utility model provides an electrical testing grounding ring device, including a grounding ring and a connecting shell. A cylindrical clamping cylinder is provided in the connecting shell. The top of the clamping cylinder is communicated with the inner cavity of the connecting shell, and the bottom end passes through the bottom of the connecting shell. A connecting rod is provided on the top of the grounding ring. The connecting rod is threadedly connected to the inner wall of the clamping cylinder. A clamping rod is movably provided in the clamping cylinder. A first clamping part with an upward C-shaped opening is provided on the top of the clamping rod. A second clamping part with a downward C-shaped opening is provided on the top of the connecting shell. The first clamping part is opposite to the second clamping part. Wire grooves are provided on both sides of the connecting shell. The electrical testing grounding ring device provided by the utility model can make the operation more convenient.

[0004] However, the inventor discovered the following problems in the prior art during the process of implementing the utility model: the above technical solution drives the connecting rod to move upward by rotating the grounding ring, so that the first clamping part and the second clamping part clamp the cable, and then uses the threaded part to insert the puncture part into the positioning hole on the connecting rod to restrict the connecting rod, so as to prevent the connecting rod from rotating. However, no limit assembly is provided on the threaded part. The threaded part will be affected by various external factors during daily use, which may easily lead to loosening of the threaded part over a long period of time. Once the threaded part falls off completely, the connecting rod cannot be restricted. After losing the restriction, the connecting rod is also prone to movement, so that the cable cannot be clamped.

[0005] Therefore, in view of the above problems, an electrical testing grounding ring is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides an electrical testing grounding ring to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrical testing grounding ring, comprising a main shell and a sub-shell, the inner top wall of the main shell is provided with a first clamping block, the inner wall of the main shell is slidably connected to a support rod, the top of the support rod is provided with a second clamping block, the bottom of the support rod is fixedly installed with a grounding ring, the top of the main shell is provided with a limiting mechanism, the limiting mechanism comprises a long plate arranged on the lower surface of the main shell, the inner wall of the long plate is rotatably connected to a threaded rod, the surface of the threaded rod is threadedly connected to an insert block, the surface of the support rod is provided with a slot adapted to the insert block, the side of the long plate is provided with a ring, and the end of the threaded rod away from the insert block is provided with a cylinder.

[0008] Preferably, the inner wall of the ring is provided with a plurality of teeth, the inner wall of the cylinder is provided with a compression spring, one end of the compression spring is provided with a connecting block, and one end of the connecting block is provided with an arc-shaped rack meshing with the teeth through a connecting rod.

[0009] Preferably, a pull rod is provided on the upper surface of the connecting block.

[0010] Preferably, a handle is provided on the top of the cylinder, a groove block is provided on the bottom of the main shell, a round rod extending into the groove block is fixedly connected to the top of the grounding ring, and a moving block is provided on the upper end of the round rod.

[0011] Preferably, an extrusion spring is provided on the inner wall of the moving block, a trapezoidal block is provided at one end of the extrusion spring, and a limiting groove matched with the trapezoidal block is provided on the surface of the groove block.

[0012] Preferably, a contraction spring is provided on the inner top wall of the groove block, and the bottom of the contraction spring is connected to the top of the moving block.

[0013] Technical effects and advantages of the utility model:

[0014] 1. Compared with the prior art, the electrical testing grounding ring is provided with a first clamping block, a second clamping block and a limiting mechanism. When the first clamping block and the second clamping block clamp the cable, the threaded rod is rotated to drive the plug-in block to move outward until the plug-in block is fully inserted into the slot on the support rod, and then the pull rod is released. At this time, the connecting block will drive the arc-shaped rack to move outward under the elastic force of the compression spring and finally abut against the teeth. Since the teeth are meshed with the arc-shaped rack, the threaded rod can be limited. After the threaded rod is restricted, the threaded rod cannot move, and the plug-in block will not be offset, thereby ensuring that the first clamping block and the second clamping block can stably fix the cable for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front section structure of the utility model;

[0017] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 It is a schematic diagram of the top-sectional structure of a long plate;

[0019] Figure 5 This is a rear view structural diagram of the utility model;

[0020] Figure 6 It is a schematic diagram of the circular cross-sectional structure.

[0021] The figures are marked as follows: 1. main shell; 2. auxiliary shell; 3. first clamping block; 4. support rod; 5. second clamping block; 6. grounding ring; 7. long plate; 8. threaded rod; 9. plug-in block; 10. circular ring; 11. cylinder; 12. teeth; 13. compression spring; 14. connecting block; 15. arc-shaped rack; 16. pull rod; 17. groove block; 18. round rod; 19. moving block; 20. extrusion spring; 21. trapezoidal block; 22. contraction spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] As attached Figure 1-Figure 6 The electrical testing grounding ring shown includes a main shell 1 and a sub-shell 2, the sub-shell 2 is fixedly mounted on the main shell 1 by bolts, the inner top wall of the main shell 1 is provided with a first clamping block 3, the inner wall of the main shell 1 is slidably connected with a support rod 4, the top of the support rod 4 is provided with a second clamping block 5, the bottom of the support rod 4 is fixedly mounted with a grounding ring 6, and the top of the main shell 1 is provided with a limiting mechanism.

[0024] The limiting mechanism includes a long plate 7 arranged on the lower surface of the main shell 1, the inner wall of the long plate 7 is rotatably connected to a threaded rod 8, the surface of the threaded rod 8 is threadedly connected to an insert block 9, the surface of the support rod 4 is provided with a slot adapted to the insert block 9, a ring 10 is provided on the side of the long plate 7, a cylinder 11 is provided at the end of the threaded rod 8 away from the insert block 9, and a handle is provided on the top of the cylinder 11.

[0025] The electrical testing grounding ring is provided with a first clamping block 3, a second clamping block 5 and a limiting mechanism. When the first clamping block 3 and the second clamping block 5 clamp the cable, the threaded rod 8 is rotated to drive the plug block 9 to move outward until the plug block 9 is fully inserted into the slot on the support rod 4, and then the pull rod 16 is released. At this time, the connecting block 14 will drive the arc-shaped rack 15 to move outward under the elastic force of the compression spring 13 and finally abut against the teeth 12. Since the teeth 12 are meshed with the arc-shaped rack 15, the threaded rod 8 can be limited. After the threaded rod 8 is limited, the threaded rod 8 cannot move, and the plug block 9 will not be offset, thereby ensuring that the first clamping block 3 and the second clamping block 5 can stably fix the cable for a long time.

[0026] like Figure 5 , Figure 6 As shown, the inner wall of the ring 10 is provided with a plurality of teeth 12, the inner wall of the cylinder 11 is provided with a compression spring 13, one end of the compression spring 13 is provided with a connecting block 14, one end of the connecting block 14 is provided with an arc-shaped rack 15 meshing with the teeth 12 through a connecting rod, and the upper surface of the connecting block 14 is provided with a pull rod 16.

[0027] When in use, the pull rod 16 is pressed inward and the handle is rotated to drive the threaded rod 8 to rotate. The rotating threaded rod 8 will drive the plug block 9 to move outward and enter the slot. When the plug block 9 is completely inserted into the slot, the pull rod 16 is released. When the connecting block 14 loses the restriction of the pull rod 16, under the action of the elastic force of the compression spring 13, the connecting block 14 will push the arc-shaped rack 15 to move outward and against the tooth 12.

[0028] like Figure 2 , 3 As shown, a groove block 17 is provided at the bottom of the main shell 1, a round rod 18 extending into the groove block 17 is fixedly connected to the top of the grounding ring 6, a moving block 19 is provided at the upper end of the round rod 18, an extrusion spring 20 is provided on the inner wall of the moving block 19, and a trapezoidal block 21 is provided at one end of the extrusion spring 20.

[0029] A limiting groove matched with the trapezoidal block 21 is formed on the surface of the groove block 17 , and a contraction spring 22 is provided on the inner top wall of the groove block 17 , and the bottom of the contraction spring 22 is connected to the top of the moving block 19 .

[0030] When the cable is located between the first clamping block 3 and the second clamping block 5, the trapezoidal block 21 is inserted into the limiting groove as shown in the attached Figure 2 As shown, the trapezoidal block 21 is then pressed inwardly to allow the trapezoidal block 21 to enter the interior of the moving block 19. At this time, the moving block 19 will shrink upward under the elastic force of the contraction spring 22. Similarly, the support rod 4 will also drive the second clamping block 5 to move upward. As the second clamping block 5 moves, the cable will gradually be clamped. Finally, the limiting mechanism is used to insert the plug block 9 into the slot on the support rod 4 to further limit the support rod 4 to prevent the support rod 4 from loosening.

[0031] The working process of the utility model is as follows: when using the electrical grounding ring, separate the main housing 1 and the auxiliary housing 2, and then put the cable between the first clamping block 3 and the second clamping block 5. At this time, the trapezoidal block 21 is inserted into the limiting groove as shown in the attached Figure 2 As shown, the trapezoidal block 21 is then pressed inwardly to allow the trapezoidal block 21 to enter the interior of the moving block 19. At this time, the moving block 19 will shrink upward under the elastic force of the contraction spring 22. Similarly, the support rod 4 will also drive the second clamping block 5 to move upward. As the second clamping block 5 moves, the cable will gradually be clamped. Finally, the limiting mechanism is used to insert the plug block 9 into the slot on the support rod 4 to further limit the support rod 4 to prevent the support rod 4 from loosening. This is the working principle of the electrical testing grounding ring.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An electrical testing grounding ring, comprising a main housing (1) and a secondary housing (2), characterized in that: The inner top wall of the main shell (1) is provided with a first clamping block (3), the inner wall of the main shell (1) is slidably connected to a support rod (4), the top of the support rod (4) is provided with a second clamping block (5), the bottom of the support rod (4) is fixedly installed with a grounding ring (6), the top of the main shell (1) is provided with a limiting mechanism, the limiting mechanism comprises a long plate (7) arranged on the lower surface of the main shell (1), the inner wall of the long plate (7) is rotatably connected to a threaded rod (8), the surface of the threaded rod (8) is threadedly connected to an insert block (9), the surface of the support rod (4) is provided with a slot adapted to the insert block (9), the side of the long plate (7) is provided with a circular ring (10), and the end of the threaded rod (8) away from the insert block (9) is provided with a cylinder (11).

2. The electrical testing grounding ring according to claim 1, characterized in that: The inner wall of the circular ring (10) is provided with a plurality of teeth (12), the inner wall of the cylinder (11) is provided with a compression spring (13), one end of the compression spring (13) is provided with a connecting block (14), and one end of the connecting block (14) is provided with an arc-shaped rack (15) meshing with the teeth (12) through a connecting rod.

3. The electrical testing grounding ring according to claim 2, characterized in that: A pull rod (16) is provided on the upper surface of the connection block (14).

4. The electrical testing grounding ring according to claim 1, characterized in that: The top of the cylinder (11) is provided with a handle, the bottom of the main housing (1) is provided with a groove block (17), the top of the grounding ring (6) is fixedly connected with a round rod (18) extending into the interior of the groove block (17), and the upper end of the round rod (18) is provided with a moving block (19).

5. The electrical testing grounding ring according to claim 4, characterized in that: The inner wall of the moving block (19) is provided with a pressing spring (20), one end of the pressing spring (20) is provided with a trapezoidal block (21), and the surface of the groove block (17) is provided with a limiting groove matched with the trapezoidal block (21).

6. The electrical testing grounding ring according to claim 4, characterized in that: The inner top wall of the groove block (17) is provided with a contraction spring (22), and the bottom of the contraction spring (22) is connected to the top of the moving block (19).

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