Grounding wire clamp structure

Abstract

The utility model relates to the technical field of grounding wire clamp structures, and discloses a grounding wire clamp structure, which comprises a cover plate detachably mounted right above a clamp, a pressing block for limiting a flexible graphene flat belt is fixedly mounted on one side of the cover plate, limiting blocks are fixedly mounted on two sides of the cover plate and the clamp, and mounting holes are formed in the tops of the limiting blocks. Fastening bolts are detachably mounted in inner cavities of the mounting holes. According to the utility model, the small head end of the fastening bolt penetrates through the two adjacent mounting holes, and then the fastening nut is mounted outside the fastening bolt from the small head end of the fastening bolt until one end of the fastening nut is attached to the outer wall of the other limiting block, so that the connection and fixation between the cover plate and the clamp can be realized; therefore, the two flexible graphene flat ribbons located in the clamp are fixed, the situation that the two flexible graphene flat ribbons fall off is prevented, and the adverse effect of the flexible graphene flat ribbons on normal conduction of current is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding clamp structures, in particular to a grounding clamp structure. Background Art

[0002] The flexible graphite grounding flat belt has excellent electrical conductivity, can effectively conduct current, reduce the grounding resistance, and improve the overall efficiency of the grounding system. Under lightning weather conditions, the flexible graphite grounding flat belt can quickly guide the lightning current to the ground, reduce the impact of lightning on buildings and power equipment, and protect buildings and equipment from lightning disasters.

[0003] However, when the flexible graphite grounding flat belt is in use, due to insufficient length, grounding clamps are needed to connect two flexible graphite grounding flat belts, thereby increasing the length of the flexible graphite grounding flat belt, which is beneficial to the long-distance conduction of current.

[0004] Currently, when using a grounding clamp to connect two flexible graphite grounding flat belts, one end of each of the two flexible graphite grounding flat belts is placed inside the clamp in a vertically stacked manner until the two stacked flexible graphite grounding flat belts are directly below the slideway on the inner wall of the clamp. Then, one end of the pressing plate is inserted into the clamp through one end of the slideway. At this time, the bottom of the pressing plate is in contact with the outer wall of the flexible graphite grounding flat belt, which increases the resistance when the pressing plate is inserted into the slideway, making it difficult for the pressing plate to be inserted into the clamp. It is necessary to use a rubber hammer to strike one end of the pressing plate until the pressing plate completely slides into the clamp. Although it can fix the two stacked flexible graphite grounding flat belts, the pressing plate is prone to damage during the knocking process, and the pressing plate is prone to misalignment with the slideway and disengaging from the clamp, resulting in the inability to connect the two flexible graphite grounding flat belts, thus having an adverse impact on the normal conduction of current by the flexible graphite grounding flat belt. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a grounding clamp structure, aiming to improve the problem that in the prior art, since the diameters of the pouring gate and the pipeline on the mold are the same, when the molten metal enters the pouring gate, the flow rate of the molten metal is relatively fast because it does not contact the side wall of the pouring gate (only contacts the air), and after entering the pouring gate, it will contact the side wall of the pouring gate, and due to the too fast flow rate, it will impact the side wall of the pipeline. Under these two conditions, the molten metal is prone to generate eddy currents in the pouring pipeline, causing more bubbles inside the molten metal.

[0006] To achieve the above object, the utility model adopts the following technical scheme: A grounding clamp structure, comprising:

[0007] A clamp.

[0008] The cover plate is detachably installed directly above the fixture. A pressing block for limiting the flexible graphene flat belt is fixedly installed on one side of the cover plate. Limiting blocks are fixedly installed on both sides of the cover plate and the fixture. An installation hole is formed at the top of the limiting block, and a fastening bolt is detachably installed in the inner cavity of the installation hole. The outer wall of the fastening bolt is installed with a fastening nut through thread fit.

[0009] As a further description of the above technical solution:

[0010] Both the cover plate and the fixture are provided with a U-shaped structure, and both the cover plate and the fixture are made of rubber material.

[0011] As a further description of the above technical solution:

[0012] The length of the pressing block is not less than the length of the cover plate.

[0013] As a further description of the above technical solution:

[0014] Positioning columns are symmetrically installed on one side of the cover plate close to the pressing block, and positioning holes adapted to the positioning columns are formed on both sides of the open end of the fixture.

[0015] As a further description of the above technical solution:

[0016] The length of the positioning column along its own axis direction is not greater than the opening depth of the positioning hole.

[0017] As a further description of the above technical solution:

[0018] The pressing block is made of soft rubber material.

[0019] As a further description of the above technical solution:

[0020] Baffles are symmetrically installed on the inner wall of the fixture, and the distance between the two baffles is not less than the length of the pressing block.

[0021] The utility model has the following beneficial effects:

[0022] In the utility model, the small head end of the fastening bolt penetrates through two adjacent installation holes, the large head end of the fastening bolt fits against the outer wall of one of the limiting blocks, and then the small head end of the fastening bolt is installed outside the fastening bolt until one end of the fastening nut is in close contact with the outer wall of the other limiting block. The simultaneous extrusion of the fastening bolt and the fastening nut on the adjacent two limiting blocks can realize the connection and fixation between the cover plate and the fixture, thereby fixing the two flexible graphene flat belts located inside the fixture, preventing the two flexible graphene flat belts from falling off, and reducing the adverse effect on the normal conduction of current caused by the two flexible graphene flat belts. Description of the Drawings

[0023] Figure 1Isometric view of the present utility model;

[0024] Figure 2 Assembly drawing of the cover plate and fixture of the present utility model;

[0025] Figure 3 Assembly drawing of the cover plate and positioning post of the present utility model.

[0026] Legend:

[0027] 1. Fixture; 2. Cover plate; 3. Limit block; 4. Fastening bolt; 5. Pressure block; 6. Positioning hole; 7. Positioning post; 8. Baffle. Specific implementation mode

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Refer to Figures 1 - 3 , an embodiment provided by the present utility model: a ground wire clamp structure, including:

[0030] Fixture 1, one end of two flexible graphene flat belts is placed inside fixture 1 in a stacked manner to preliminarily limit the subsequent connection of the two flexible graphene flat belts.

[0031] Cover plate 2, detachably installed directly above fixture 1. A pressure block 5 for limiting the flexible graphene flat belt is fixedly installed on one side of cover plate 2. After the two flexible graphene flat belts are placed inside fixture 1, cover plate 2 is placed directly above fixture 1 until the bottom of pressure block 5 fits against the outer wall of the flexible graphene flat belt.

[0032] On both sides of the cover plate 2 and the fixture 1, limit blocks 3 are fixedly installed. An installation hole is opened at the top of the limit block 3, and a fastening bolt 4 is detachably installed in the inner cavity of the installation hole. A fastening nut is installed on the outer wall of the fastening bolt 4 through thread matching. When the bottom of the pressing block 5 fits against the outer wall of the flexible graphene flat belt, adjust the positions of the limit blocks 3 outside the cover plate 2 and the fixture 1 to make the middle parts of the installation holes opened by two adjacent limit blocks 3 on the same horizontal line. Then, insert the small head end of the fastening bolt 4 through two adjacent installation holes until the large head end of the fastening bolt 4 fits against the outer wall of one of the limit blocks 3. Then, install the fastening nut on the outer part of the fastening bolt 4 from the small head end of the fastening bolt 4 until one end of the fastening nut fits against the outer wall of the other limit block 3. The simultaneous extrusion of the fastening bolt 4 and the fastening nut on two adjacent limit blocks 3 can realize the connection and fixation between the cover plate 2 and the fixture 1, thereby fixing the two flexible graphene flat belts located inside the fixture 1, preventing the two flexible graphene flat belts from falling off, and reducing the adverse impact on the normal conduction of current caused by the flexible graphene flat belt.

[0033] Both the cover plate 2 and the fixture 1 are set as U-shaped structures. After the two flexible graphene flat belts are placed inside the fixture 1, the placement positions of the two flexible graphene flat belts can be limited, preventing the positions of the two flexible graphene flat belts from shifting significantly.

[0034] Both the cover plate 2 and the fixture 1 are made of hard rubber material, which can effectively reduce the weights of the cover plate 2 and the fixture 1, increase the friction force between the outer wall of the flexible graphene flat belt and the inner wall of the fixture 1, and prevent the flexible graphene flat belt in contact with the inner wall of the fixture 1 from detaching from the inside of the fixture 1 when being pulled.

[0035] The length of the pressing block 5 is not less than the length of the cover plate 2, which can increase the contact area between the pressing block 5 and the flexible graphene flat belt, thereby improving the friction force between the pressing block 5 and the flexible graphene flat belt, and further improving the connection stability of the adjacent ends of the two flexible graphene flat belts.

[0036] On one side of the cover plate 2 close to the pressing block 5, positioning columns 7 are symmetrically installed. On both sides of the open end of the fixture 1, positioning holes 6 adapted to the positioning columns 7 are opened. After the outer wall of the pressing block 5 contacts the flexible graphene flat belt, one ends of multiple positioning columns 7 are simultaneously inserted into the interiors of multiple positioning holes 6, thereby limiting the installation position of the cover plate 2, which is beneficial to limiting the installation position of the fastening bolt 4.

[0037] The length of the positioning column 7 along its own axis direction is not greater than the opening depth of the positioning hole 6, preventing one end of the positioning column 7 of the pressing block 5 from fitting against the bottom of the opening end of the positioning hole 6, resulting in the cover plate 2 being unable to approach the fixture 1, which is beneficial to the continuous pressing of the flexible graphene flat belt by the pressing block 5.

[0038] The briquette 5 is made of a soft rubber material, which can improve the ability of the briquette 5 to undergo plastic deformation. When the cover plate 2 is installed with the fixture 1, the briquette 5 presses on the flexible graphene ribbon. The briquette 5 deforms and continuously squeezes the flexible graphene ribbon, increasing the extrusion force of the outer wall of the briquette 5 on the flexible graphene ribbon and the frictional force between the briquette 5 and the flexible graphene ribbon, further enhancing the stability of the placement of the two flexible graphene ribbons inside the fixture 1.

[0039] As Figure 1 shown, there is a movement gap between the cover plate 2 and the fixture 1 and between their limit blocks 3. The fastening bolt 4 can be continuously rotated and tightened, causing the cover plate 2 and the fixture 1 to approach each other. Theoretically, the closer the cover plate 2 and the fixture 1 are, the greater the deformation of the briquette 5 and the greater the pressure exerted on the flexible graphene ribbon. That is to say, the extrusion force of the briquette 5 on the flexible graphene ribbon can be adjusted by the fastening bolt 4 and the fastening nut.

[0040] The inner wall of the fixture 1 is symmetrically installed with baffles 8. When the two flexible graphene ribbons are placed inside the fixture 1 in a stacked manner and fixed inside the fixture 1 by the briquette 5, the outer walls of both flexible graphene ribbons are in contact with the top of the baffle 8. Since the other end of the flexible graphene ribbon extends away from the fixture 1, a bend occurs between its outer wall and the top of the baffle 8. When the other end of the flexible graphene ribbon is stressed and in a stretched state, the outer wall of the flexible graphene ribbon, the side of the baffle 8 close to the briquette 5, and the top of the baffle 8 are in close contact, sharing the tension on the outside of the flexible graphene ribbon and effectively preventing the flexible graphene ribbon from detaching from the inside of the fixture 1 after being stressed for a long time, improving the stability of the installation of the flexible graphene ribbon inside the fixture 1.

[0041] The distance between the two baffles 8 is not less than the length of the briquette 5, that is, the distance between the two baffles 8 is greater than the length of the briquette 5. When the briquette 5 is installed inside the fixture 1, the briquette 5 is located between the two baffles 8, which is beneficial for limiting and fixing the two flexible graphene ribbons by the briquette 5.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A grounding wire clamp structure, characterized in that: including a fixture (1); a cover plate (2), detachably installed directly above the fixture (1), a pressing block (5) for limiting the flexible graphene flat belt is fixedly installed on one side of the cover plate (2), limiting blocks (3) are fixedly installed on both sides of the cover plate (2) and the fixture (1), mounting holes are formed at the tops of the limiting blocks (3), a fastening bolt (4) is detachably installed in the inner cavity of the mounting hole, and a fastening nut is installed on the outer wall of the fastening bolt (4) by means of thread fit.

2. The grounding wire clamp structure according to claim 1, characterized in that: Both the cover plate (2) and the fixture (1) are arranged in a U-shaped structure, and both the cover plate (2) and the fixture (1) are made of rubber material.

3. The grounding wire clamp structure according to claim 1, characterized in that: The length of the pressing block (5) is not less than the length of the cover plate (2).

4. A grounding wire clamp structure according to claim 1, characterized in that: Positioning columns (7) are symmetrically installed on one side of the cover plate (2) close to the pressing block (5), and positioning holes (6) adapted to the positioning columns (7) are formed on both sides of the open end of the fixture (1).

5. The ground wire clamp structure according to claim 4, characterized in that: The length of the positioning column (7) along its own axis direction is not greater than the opening depth of the positioning hole (6).

6. The ground wire clamp structure according to claim 1, characterized in that: The pressing block (5) is made of soft rubber material.

7. The ground wire clamp structure according to claim 2, characterized in that: Baffles (8) are symmetrically installed on the inner wall of the fixture (1), and the distance between the two baffles (8) is not less than the length of the pressing block (5).

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