Ground wire clamp with adjustable spacing

Abstract

The utility model relates to the technical field of ground wire clamps, and discloses a distance-adjustable ground wire clamp which comprises a first concave frame, a second concave frame is arranged at the rear end of the first concave frame, and connecting plates are fixedly connected to the middles of the left and right ends of the first concave frame and the second concave frame. Notch blocks are fixedly connected to the upper portions and the lower portions of the opposite sides of the left ends and the right ends of the first concave frame and the second concave frame correspondingly, groove frames are slidably connected to the inner walls of the outward ends of the notch blocks on the front side and the rear side correspondingly, and limiting assemblies are installed between the groove frames and the connecting plates correspondingly. Arc-shaped abutting plates are connected to the inner walls of the left side and the right side of the opposite ends of the first concave frame and the second concave frame through adjusting assemblies. According to the ground wire clamp, the clamping distance of the arc-shaped abutting plates can be adjusted according to ground wires of different specifications and sizes, the flexibility of the wire clamp is improved, and convenience is provided for clamping and installing the ground wires.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding wire clamps, in particular to a grounding wire clamp with adjustable spacing. Background Art

[0002] In urban rail systems, grounding wire clamps can ensure a good connection between the grounding wire and the rail to ensure that current can effectively flow into the ground through the grounding loop, thereby protecting passengers and equipment from dangers such as electric shock.

[0003] At present, the specifications of the grounding wire clamps used in some existing urban rails are mostly fixed. When encountering grounding wires of different specifications, it is necessary to replace the clamps with the same specifications and sizes to adapt. Therefore, the versatility is poor, which will cause certain inconveniences to the installation of the grounding wires during specific use. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a grounding wire clamp with adjustable spacing, which can adjust the spacing of the arc-shaped abutment plates according to grounding wires of different specifications and sizes, thereby improving the flexibility of the clamp.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A grounding wire clamp with adjustable spacing comprises a first concave frame, a second concave frame is arranged at the rear end of the first concave frame, connecting plates are fixedly connected to the middle parts of the left and right ends of the first concave frame and the second concave frame, notch blocks are fixedly connected to the upper and lower parts of the opposite sides of the left and right ends of the first concave frame and the second concave frame, the inner wall of the outward end of the notch block on the same front and back sides is slidably connected to the groove frame, a limiting component is installed between the groove frame and the connecting plate, and the inner walls on the left and right sides of the first concave frame and the second concave frame opposite to each other are connected to arc-shaped abutment plates through adjustment components.

[0007] Furthermore, the limiting assembly includes an empty slot block fixedly connected to the inner walls on both the front and rear sides of the opposite end of the groove frame, and a plurality of first arc-shaped tooth blocks fixedly connected to the outward end of the connecting plate, the inner walls at the upper and lower ends of the empty slot block are rotatably connected to the second arc-shaped tooth blocks, and the second arc-shaped tooth blocks are connected to the inner wall of the groove frame through a first spring.

[0008] Furthermore, the adjustment component includes a bidirectional screw that is rotatably connected to the inner walls of the left and right ends of the first concave frame and the second concave frame, a knob is fixedly connected to the middle of the outer wall of the bidirectional screw, and connecting plates are threadedly connected to the left and right sides of the outer wall of the bidirectional screw, and the outer walls of the connecting plates on the same front and rear sides are slidably connected to the inner walls of the first concave frame and the second concave frame respectively.

[0009] Furthermore, one end of the first spring is fixedly connected to the opposite end of the second arc-shaped tooth block on the same front and rear sides, and the other end of the first spring is fixedly connected to the inner walls on both sides of the front and rear ends of the groove frame opposite to each other.

[0010] Furthermore, the lower side of the outward end of the arc-shaped abutment plate is fixedly connected to the opposite end of the front and rear connecting plates on the same side.

[0011] Furthermore, the inner wall of the top end of the arc-shaped abutment plate is slidably connected with a movable plate, and the inner end of the movable plate is fixedly connected with a plurality of rubber strips.

[0012] Furthermore, the inner walls on both upper and lower sides of the outward end of the movable plate are fixedly connected with second springs, and the other ends of the second springs are fixedly connected to the inward end of the arc-shaped abutment plate.

[0013] Furthermore, the distance between adjacent first arc-shaped tooth blocks is the same as the distance between the front and rear ends of the second arc-shaped tooth blocks.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, through the cooperation of the first concave frame, the second concave frame, the connecting plate, the first arc-shaped tooth block, the groove frame, the knob, the bidirectional screw, the connecting plate, the empty slot block, the second arc-shaped tooth block, and the first spring, the wire clamp can adjust the clamping spacing of the arc-shaped plate according to the grounding wires of different specifications and sizes, thereby improving the flexibility of the wire clamp and providing convenience for the clamping and installation of the grounding wire.

[0016] 2. In the utility model, the arc-shaped abutment plate, the movable plate, the rubber strip and the second spring cooperate to avoid damage to the surface of the grounding wire caused by excessive clamping pressure, and the material effect of the rubber strip prevents excessive clamping pressure from causing indentations on the internal circuit of the grounding wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a grounding wire clamp with adjustable spacing proposed by the utility model;

[0018] Figure 2 A half-section diagram of a groove frame of a grounding wire clamp with adjustable spacing proposed by the utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 A half-section view of a first concave frame of a grounding wire clamp with adjustable spacing proposed by the utility model;

[0021] Figure 5The utility model provides a cross-sectional view of an arc-shaped abutment plate of a grounding wire clamp with adjustable spacing.

[0022] Legend:

[0023] 1. First concave frame; 2. Connecting plate; 3. First arc-shaped tooth block; 4. Groove frame; 5. Knob; 6. Bidirectional screw; 7. Arc-shaped abutment plate; 8. Movable plate; 9. Rubber strip; 10. Second concave frame; 11. First spring; 12. Second arc-shaped tooth block; 13. Notch block; 14. Connecting plate; 15. Empty slot block; 16. Second spring. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 1-5 The utility model provides an embodiment: a grounding wire clamp with adjustable spacing, including a first concave frame 1, a second concave frame 10 is arranged at the rear end of the first concave frame 1, the first concave frame 1 and the second concave frame 10 are the same size, the middle parts of the left and right ends of the first concave frame 1 and the second concave frame 10 are fixedly connected with a connecting plate 2, the upper and lower parts of the opposite sides of the left and right ends of the first concave frame 1 and the second concave frame 10 are fixedly connected with a notch block 13, and the inner wall of the outward end of the notch block 13 on the same side of the front and rear is slidably connected with a groove frame 4.

[0026] Specifically, the inner walls of the left and right ends of the first concave frame 1 and the second concave frame 10 are rotatably connected to the bidirectional screws 6, the middle of the outer walls of the bidirectional screws 6 are fixedly connected with knobs 5, the left and right sides of the outer walls of the bidirectional screws 6 are threadedly connected with connecting plates 14, the outer walls of the front and rear connecting plates 14 on the same side are slidably connected to the inner walls of the first concave frame 1 and the second concave frame 10 on the opposite sides, and the lower side of the outward end of the arc-shaped abutment plate 7 is fixedly connected to the opposite end of the front and rear connecting plates 14 on the same side. The grounding wire is passed between the first concave frame 1 and the second concave frame 10, and then the knobs 5 on both sides are rotated respectively to rotate the bidirectional screw 6, so that the connecting plates 14 on both sides of the outer wall thereof slide in relative directions through threads, and the arc-shaped abutment plate 7 is displaced and retracted until the relative spacing between the arc-shaped abutment plates 7 on both sides is close to the outer diameter width of the grounding wire.

[0027] Specifically, the empty slot blocks 15 are fixedly connected to the inner walls of the front and rear sides of the opposite end of the groove frame 4, and the first arc-shaped tooth blocks 3 are fixedly connected to the outer end of the connecting plate 2. The inner walls of the upper and lower ends of the empty slot blocks 15 are rotatably connected with the second arc-shaped tooth blocks 12. The distance between adjacent first arc-shaped tooth blocks 3 is the same as the distance between the front and rear ends of the second arc-shaped tooth blocks 12. The second arc-shaped tooth blocks 12 are connected to the inner wall of the groove frame 4 through the first spring 11. One end of the first spring 11 is fixedly connected to the opposite end of the second arc-shaped tooth block 12 on the same side of the front and rear. The other end of the first spring 11 is respectively fixedly connected to the inner walls of the front and rear sides of the opposite end of the groove frame 4, pushing the first concave frame 1 and the second concave frame 10 to move in relative directions. The notch block 13 is outside the groove frame 4. The first arc-shaped tooth block 3 is pressed against the first spring 11, and the second arc-shaped tooth block 12 ...

[0028] Specifically, the inner wall at the top end of the arc-shaped abutment plate 7 is slidably connected with a movable plate 8, and a plurality of rubber strips 9 are fixedly connected to the inward end of the movable plate 8. The inner walls on the upper and lower sides of the outward end of the movable plate 8 are fixedly connected with a second spring 16, and the other end of the second spring 16 is fixedly connected to the inward end of the arc-shaped abutment plate 7. During the contact process, the movable plate 8 will slide into the arc-shaped abutment plate 7 and squeeze the second spring 16, so as to relieve the pressure when the movable plate 8 clamps the grounding wire, and avoid damage to the surface of the grounding wire caused by excessive pressure. Through the elastic effect of the plurality of rubber strips 9 themselves, the grounding wire can be put in a clamping state, which can reduce the pressure of the movable plate 8 on the grounding wire, and avoid excessive pressure from causing indentations on the internal circuit of the grounding wire.

[0029] Working principle: First, pass the grounding wire through the first concave frame 1 and the second concave frame 10, and then rotate the knobs 5 on both sides respectively to make the bidirectional screw 6 rotate, so that the connecting plates 14 on both sides of the outer wall slide in the relative directions, and the arc-shaped abutment plates 7 are displaced and retracted until the relative spacing between the arc-shaped abutment plates 7 on both sides is close to the outer diameter width of the grounding wire. Then, push the first concave frame 1 and the second concave frame 10 to move in relative directions, and the notch block 13 slides on one side of the outer wall of the groove frame 4. At the same time, the first arc-shaped tooth blocks 3 on the corresponding sides continuously push the second arc-shaped tooth block 12 to lift and squeeze the first spring 11 until the movable plate 8 on the inner side of the arc-shaped abutment plate 7 contacts and squeezes the surface of the grounding wire, and then stop pushing. At the same time, the second arc-shaped tooth block 12 will be stuck in the two adjacent first arc-shaped tooth blocks 12 without being pushed by the first arc-shaped tooth block 3. The first concave frame 10 is fixed with the second concave frame 11 and the second concave frame 12. The first concave frame 10 is fixed with the second concave frame 11 and the second concave frame 12 are fixed with the second concave frame 11. The first concave frame 10 is fixed with the second concave frame 11 and the second concave frame 12 are fixed with the second concave frame 11. The first concave frame 10 is fixed with the second concave frame 11 and the second concave frame 12 are fixed with the second concave frame 11. The first concave frame 10 is fixed with the second concave frame 11 and the second concave frame 12 are fixed with the second concave frame 11. The second ... is fixed with the second concave frame 11.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grounding wire clamp with adjustable spacing, comprising a first concave frame (1), characterized in that: A second concave frame (10) is arranged at the rear end of the first concave frame (1), and a connecting plate (2) is fixedly connected to the middle of the left and right ends of the first concave frame (1) and the second concave frame (10), and a notch block (13) is fixedly connected to the upper and lower parts of the left and right ends of the first concave frame (1) and the second concave frame (10), and the inner wall of the outward end of the notch block (13) on the same front and rear sides is slidably connected to a groove frame (4), and a limiting component is installed between the groove frame (4) and the connecting plate (2), and the inner walls on the left and right sides of the opposite ends of the first concave frame (1) and the second concave frame (10) are connected to an arc-shaped abutment plate (7) through an adjustment component.

2. The grounding wire clamp with adjustable spacing according to claim 1, characterized in that: The limit assembly comprises an empty slot block (15) fixedly connected to the inner walls of both front and rear sides of the opposite end of the groove frame (4) and a plurality of first arc-shaped tooth blocks (3) fixedly connected to the outward end of the connecting plate (2); the inner walls of the upper and lower ends of the empty slot block (15) are rotatably connected to the second arc-shaped tooth blocks (12); the second arc-shaped tooth blocks (12) are connected to the inner wall of the groove frame (4) via a first spring (11).

3. The grounding wire clamp with adjustable spacing according to claim 1, characterized in that: The adjustment assembly comprises a bidirectional screw (6) rotatably connected to the inner walls of the left and right ends of the first concave frame (1) and the second concave frame (10), a knob (5) is fixedly connected to the middle of the outer wall of the bidirectional screw (6), and a connecting plate (14) is threadedly connected to the left and right sides of the outer wall of the bidirectional screw (6), and the outer walls of the connecting plates (14) on the same front and rear sides are slidably connected to the inner walls of the first concave frame (1) and the second concave frame (10) respectively.

4. The grounding wire clamp with adjustable spacing according to claim 2, characterized in that: One end of the first spring (11) is fixedly connected to the opposite end of the second arc-shaped tooth block (12) on the same side at the front and rear, and the other end of the first spring (11) is fixedly connected to the inner walls at the front and rear sides of the opposite end of the groove frame (4).

5. The grounding wire clamp with adjustable spacing according to claim 1, characterized in that: The lower side of the outward end of the arc-shaped abutment plate (7) is fixedly connected to the opposite end of the front and rear connecting plates (14) on the same side.

6. The grounding wire clamp with adjustable spacing according to claim 1, characterized in that: The inner wall of the top end of the arc-shaped abutment plate (7) is slidably connected to a movable plate (8), and the inner end of the movable plate (8) is fixedly connected to a plurality of rubber strips (9).

7. The grounding wire clamp with adjustable spacing according to claim 6, characterized in that: The inner walls on both upper and lower sides of the outward end of the movable plate (8) are fixedly connected with a second spring (16), and the other end of the second spring (16) is fixedly connected to the inward end of the arc-shaped abutment plate (7).

8. The grounding wire clamp with adjustable spacing according to claim 2, characterized in that: The distance between adjacent first arc-shaped tooth blocks (3) is the same as the distance between the front and rear ends of the second arc-shaped tooth block (12).

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