A clamp and distribution box

Abstract

The utility model discloses a hoop and distribution box, the backboard of distribution box main part is connected with hoop, and the hoop is annular, and the hoop includes two symmetrical embrace clamps, and the two embrace clamps are hinged at one end and are fastened at the other end, the inner wall of two embrace clamps all is equipped with the arc -shaped groove, and the arc -shaped groove is equipped with the arc -shaped rubber ring, and the opening of arc -shaped groove is equipped with two horizontal inner -extension limit steps, the arc -shaped rubber ring is arranged on the arc -shaped contact part simultaneously, and the both sides of arc -shaped contact part are matched and are placed in the limit step. The utility model discloses through screw rod rigid locking, rubber ring elastic compression, contact part clamping self -locking cooperation effect formation triple steady mechanism, and the risk of loosening is prevented, and the contact part arc surface combines rubber ring elastic layer and forms the buffer system, and the diameter error of electric pole can also be compensated, and the hinge type design realizes single person fast installation, and the operation space of external screw rod is sufficient, changes the present situation that the hoop distribution box structure is rigidified and rigid contact, and improves its comprehensive performance.

Description

Technical Field

[0001] This utility model relates to clamps and distribution boxes, and more particularly to a clamp and distribution box. Background Technology

[0002] In the field of power facilities, traditional clamp-on distribution boxes have long faced two major technical bottlenecks: First, the bolts must be completely removed before the distribution box can be fitted onto the pole, and the limited operating space during high-altitude operations leads to low installation efficiency; second, the rigid clamps directly contact the pole, and the bolts are prone to loosening under continuous vibration. These two defects seriously restrict the engineering applicability and service life of the distribution box.

[0003] Therefore, existing clamp-on distribution boxes have long faced the problem of rigid structure and rigid contact, and there have been few improvements to their design to enhance their overall performance. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this utility model provides a clamp and a distribution box.

[0005] To solve the above technical problems, the technical solution adopted by this utility model is: a clamp, the clamp is ring-shaped, the clamp includes two symmetrical clamps on the left and right, the two clamps are hinged at one end and fastened at the other end;

[0006] Both clamps have arc-shaped channels on their inner walls, and arc-shaped rubber rings are placed inside the arc-shaped channels. The openings of the arc-shaped channels have two laterally extending limiting steps.

[0007] The arc-shaped rubber ring is simultaneously placed on the arc-shaped contact part, and the two sides of the arc-shaped contact part are matched and locked in the limiting step.

[0008] Furthermore, the two arc-shaped contact parts together form a circular enclosing space, and the contact surface of the arc-shaped contact parts is the arc surface of the matching mounting position.

[0009] Furthermore, the clamp includes an arc-shaped portion and a vertical extension portion. One end of the two arc-shaped portions is hinged to each other by a hinge plate. A screw is hinged to one of the vertical extension portions, and an opening groove for accommodating the screw is provided on the other vertical extension portion. The screw portion is placed in the opening groove and connected to a nut through the protruding end.

[0010] Furthermore, the inner wall of the arc-shaped channel is configured as an arc surface that fits against the outer wall of the arc-shaped rubber ring; one end face of the arc-shaped contact part is configured as an arc surface that fits against the outer wall of the arc-shaped rubber ring.

[0011] Furthermore, the arc surface formed by the arc-shaped contact portion protrudes uniformly from the arc-shaped groove of the clamp, and is engaged within the limiting steps at both ends of the clamp by the locking portions on both sides.

[0012] Furthermore, the elastic force applied by the arc-shaped rubber ring to the arc-shaped contact part causes the locking part to be elastically locked within the limiting steps at both ends of the clamp.

[0013] A distribution box includes a clamp, the distribution box includes a distribution box body, and the clamp is connected to the back plate of the distribution box body.

[0014] This utility model provides a clamp and distribution box, the core advantages of which are: the rigid locking of the screw, the elastic pressing of the rubber ring, and the self-locking of the contact part work together to form a triple stabilization mechanism, eliminating the risk of loosening; the arc surface of the contact part combined with the elastic layer of the rubber ring forms a buffer system, which can also compensate for the diameter error of the pole; the hinged design enables quick installation by a single person, and the external screw has sufficient operating space. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the clamp of this utility model.

[0017] Figure 3 This is a top view of the clamp of this utility model.

[0018] Figure 4 for Figure 2 A magnified schematic diagram of the structure in the middle circle.

[0019] In the diagram: 1. Main body of the distribution box; 2. Clamp; 21. Clamping clip; 22. Arc-shaped rubber ring; 23. Arc-shaped contact part; 24. Hinge plate; 25. Screw; 26. Nut; 21a. Arc-shaped part; 21b. Vertical extension part; 211. Arc-shaped channel; 212. Limiting step; 8. Clamping end; 231. Locking part. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] In this embodiment, Figure 1 The illustrated distribution box includes a main body 1, which is primarily composed of an electrical distribution module, a protective shell, and a safety isolation structure. It features a circuit breaker (or fuse) mounted on an insulating base plate, connecting the incoming and outgoing terminals via copper busbars for power distribution and overload protection. An outer flame-retardant engineering plastic lining layer, together with the metal shell, forms a double insulation barrier. Mains power enters from the inlet, is distributed to branch circuit breakers via the main circuit breaker, and user loads are connected to the corresponding outgoing terminals as needed. In case of overload or short circuit, the circuit breaker's magnetic trip mechanism interrupts the fault current within a preset time. A ring-shaped clamp 2 is connected to the back plate of the main body 1; this clamp is a core innovation of the distribution box. Figure 2 and Figure 3 As shown, it includes two perfectly symmetrical metal clamps 21, hinged at one end to allow them to open and close like pliers, and fastened at the other end to tighten and lock them in a closed state. Specifically, each clamp 21 includes an arcuate portion 21a and a vertical extension 21b. One end of the two arcuate portions 21a is hinged to each other by a hinge plate 24. A screw 25 is hinged to one of the vertical extensions, and the other vertical extension has an opening slot for the screw 25. A portion of the screw 25 is placed in the opening slot and extends outward to connect to a nut 26. The hinge plate 24 ensures a reliable hinge between the two clamps 21. The vertical extension 21b extends the fastening point from the arcuate encircling area of ​​the clamp, providing operating space. The screw 25, the opening slot, and the nut 26 constitute the clamping mechanism. Tightening the nut 26 pulls the two vertical extensions 21b together, thereby forcing the two arcuate portions 21a to clamp the pole. Therefore, this solution provides an installation method for firmly fixing the main body 1 of the distribution box to a cylindrical object (such as a utility pole or pipe). The hinged end allows the clamp to open and close easily, facilitating the fitting or removal of the installation object, while the fastening end provides clamping force to ensure that the clamp tightly holds the installation object. It should be understood that the main body of the distribution box is connected to the clamp on the side without the slot, which allows for the nut to rotate. Moreover, the main body of the distribution box is not limited to being connected to one clamp, but usually two.

[0022] like Figure 4As shown, to further enhance the clamping force, arc-shaped grooves 211 are provided on the inner walls of both clamps 21 (towards the pole). Arc-shaped rubber rings 22 are placed within the arc-shaped grooves 211, thus providing positioning and accommodating space for the rubber rings 22. The arc-shaped rubber rings 22 are also placed on the arc-shaped contact portions 23. The arc-shaped rubber rings 22 are elastic. Two laterally extending limiting steps 212 are provided at the opening of the arc-shaped grooves 211. The shapes of the two side edges of the arc-shaped contact portions 23 are designed to match the limiting steps 212. The arc surface formed by the arc-shaped contact portions 23 protrudes uniformly from the arc-shaped grooves 211 of the clamps 21. Under the reaction force of the elastic force of the arc-shaped rubber rings 22, the locking portions 231 on both sides of the arc-shaped contact portions 23 are matched and locked within the limiting steps 212. Therefore, the limiting steps 212 are used to restrict the placement of the rubber rings 23 within the grooves 212. The position of the arc-shaped contact part 23 inside the arc-shaped rubber ring 22 is designed to prevent it from falling inward toward the pole or outward from the clamp. Each clamp 21 has an independent arc-shaped contact part 23. When two arc-shaped contact parts 23 are closed together, they form a circular encircling space. The contact surface of the arc-shaped contact part 23 is the arc surface of the matching installation position. The arc-shaped contact part 23 transmits the pressure applied by the clamp to the rubber ring 22 and the pole more evenly. The elastic design of the locking fit allows the arc-shaped contact part 23 to have a certain degree of freedom of movement within the space defined by the limiting step 212. When the two clamps 21 are closed and locked, their respective arc-shaped contact parts 23 also close together. The inner surfaces of the two arc-shaped contact parts 23 together form a complete circular or near-circular encircling space, forming a clamping surface that fits tightly with the outer circumference of the pole. The matching arc surface maximizes the contact area.

[0023] In other embodiments, the inner wall of the arc-shaped channel 211 is configured as an arc surface that fits against the outer wall of the arc-shaped rubber ring 22; one end face of the arc-shaped contact portion 23 is configured as an arc surface that fits against the outer wall of the arc-shaped rubber ring 22. This ensures that there is a large area of ​​tight curved surface contact between the rubber ring 22 and the inner wall of the channel 211, and between the rubber ring 22 and the bottom surface of the arc-shaped contact portion 23. The curved surface contact maximizes the contact area, making the stress distribution of the rubber ring 22 more uniform when under pressure, avoiding premature aging or damage caused by excessive local stress. The tight contact ensures that the clamping force generated by the clamp can be more effectively transmitted to the contact portion 23 and the pole through the rubber ring 22.

[0024] When installing the clamp, open the hinged clamp and insert it into the pole. After closing, insert the screw and tighten the nut, forcing the two clamps to retract inward. The clamp pressure is transmitted to the arc-shaped rubber ring through the arc-shaped groove. The rubber ring deforms under pressure and applies elastic force to the arc-shaped contact part, making its convex arc surface fit tightly against the pole surface. At the same time, the elastic force of the rubber ring presses the locking parts on both sides of the contact part tightly into the limiting step to form a self-locking mechanism. When the pole vibrates, the rubber ring absorbs vibration energy through elastic deformation, and the contact part floats slightly within the limiting step to adaptively adjust the pressure distribution.

[0025] Its core advantages are: the rigid locking of the screw, the elastic pressing of the rubber ring, and the self-locking of the contact part work together to form a triple stabilization mechanism, eliminating the risk of loosening; the arc surface of the contact part combined with the elastic layer of the rubber ring forms a buffer system, which can also compensate for the error of the pole diameter; the hinged design enables quick installation by a single person, and the external screw has ample operating space.

[0026] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A clamp, characterized in that, The clamp (2) is ring-shaped and includes two symmetrical clamps (21) on the left and right sides. The two clamps (21) are hinged at one end and fastened at the other end. Both of the clamps (21) have arc-shaped channels (211) on their inner walls, and arc-shaped rubber rings (22) are placed in the arc-shaped channels (211). Two laterally extending limiting steps (212) are provided at the opening of the arc-shaped channels (211). The arc-shaped rubber ring (22) is simultaneously placed on the arc-shaped contact part (23), and the two sides of the arc-shaped contact part (23) are matched and locked in the limiting step (212).

2. The clamp according to claim 1, characterized in that: The two arc-shaped contact parts (23) together form a circular enclosing space, and the contact surface of the arc-shaped contact part (23) is the arc surface of the matching mounting position.

3. The clamp according to claim 2, characterized in that: The clamp (21) includes an arc-shaped part (21a) and a vertical extension part (21b). One end of the two arc-shaped parts (21a) is hinged to each other by a hinge plate (24). A screw (25) is hinged to one of the vertical extension parts, and an opening groove for placing the screw (25) is provided on the other vertical extension part. A portion of the screw (25) is placed in the opening groove and connected to a nut (26) through the protruding end.

4. The clamp according to any one of claims 1-3, characterized in that: The inner wall of the arc-shaped channel (211) is configured as an arc surface that fits against the outer wall of the arc-shaped rubber ring (22); one side end face of the arc-shaped contact part (23) is configured as an arc surface that fits against the outer wall of the arc-shaped rubber ring (22).

5. The clamp according to claim 4, characterized in that: The arc surface formed by the arc-shaped contact part (23) protrudes uniformly from the arc-shaped groove (211) of the clamp (21), and is locked in the limiting steps (212) at both ends of the clamp (21) by the locking parts (231) on both sides.

6. The clamp according to claim 5, characterized in that: The elastic force applied by the arc-shaped rubber ring (22) to the arc-shaped contact part (23) causes the locking part (231) to be elastically locked in the limiting steps (212) at both ends of the clamp (21).

7. A distribution box, characterized in that, The distribution box includes the clamp as described in any one of claims 1-6, and the distribution box includes a distribution box body (1), with the clamp (2) connected to the back plate of the distribution box body (1).

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