CN211957955U - Grounding wire clamp for bus bridge - Google Patents

Abstract

The utility model relates to a grounding clamp for a busbar bridge, wherein a through hole is arranged on the inner side of a conductive block, limit holes are arranged on both sides of the through hole, the limit device is located inside the conductive block, wherein the limit plate passes through the sliding The block is slidably connected to the conductive block. The wing plate is located at the upper end of the limit plate, and both sides are provided with connecting rods. The lower end of the connecting rod is provided with a rotating hole. The left adjustment block is connected with an adjustment rod, the right adjustment block is provided with an adjustment groove, both sides of the limit plate are provided with sleeves, and the outer ends of the adjustment rods are threadedly connected with the sleeves; One end is connected with the limit plate, and the other end is passed through the through hole to the outside of the conductive block and connected with the pull block. There are two threaded rods, which are located on both sides of the pull rod respectively. The upper end is connected with the limit plate, and the lower end is limited by The position hole is located outside the conductive block, and the upper end of the threaded support rod is provided with a limit screw sleeve; the utility model has the advantages of stable connection and good use effect.

Description

A grounding clamp for bus bridge

technical field

The utility model belongs to the field of grounding equipment for bus bridges, in particular to a grounding clamp for line bridges.

Background technique

The grounding wire is a line that is connected to the outer casing of the electrical equipment, which is convenient to export the unsafe electric charge or leakage current caused by various reasons in a timely manner; during the maintenance process of the transmission line, the grounding wire must be connected after the line is powered off; at present, The grounding clip used for grounding the busbar bridge in the substation is of the crimping type. According to the "State Grid Corporation Electric Power Safety Work Regulations", the grounding wire should be connected to the grounding terminal first, and then the conductor terminal. When using, first, connect and fix the ground wire on the ground clip to the ground terminal, then use the opening on the ground clip to connect to the conductor end, and rotate the insulating rod to drive the movable clip on the ground clip up and down. However, the grounding clip with this structure has the following problems in the operation process: (1) the operation is troublesome and the operation time is long, (2) the grounding clip exists and the busbar The risk of weak bridge connection; therefore, in order to solve the above problem, it is necessary to develop a grounding clip for a wire bridge with a stable connection and good use effect.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a grounding clamp for a wire bridge with stable connection and good use effect.

The purpose of the utility model is achieved in this way: a grounding clamp for a bus bridge includes a conductive block and a limiting device, the conductive block is a U-shaped structure, the inner bottom surface is provided with a chute, and the middle position of the inner side surface is A through hole is provided, and limit holes are respectively set on both sides of the through hole. The limit device is located inside the conductive block and includes a limit plate, a wing plate, a pull rod and a threaded support rod. The left end of the limit plate is provided with There is a sliding block, and the sliding connection between the sliding block and the conductive block is realized by the cooperative connection between the sliding block and the chute, the wing plate is located at the upper end of the limit plate, and there is no contact between the wing plate and the limit plate. Connecting rods are fixedly arranged on both sides of the connecting rod, the upper end of the connecting rod is fixedly connected with the wing plate, and the lower end is provided with a rotating hole. An adjustment rod is fixedly connected at the center, an adjustment groove is arranged at the center of the right adjustment block, a sleeve is fixedly arranged in the middle position of both sides of the limit plate, one end of the adjustment rod is fixedly connected with the adjustment block, and the other end is fixedly connected with the adjustment block. It is located in the casing and is threadedly connected with the casing; the tie rod is located at the lower end of the limit plate, its upper end is vertically and fixedly connected with the middle position of the lower surface of the limit plate, and the lower end passes through the through hole to the outside of the conductive block and is fixedly connected with a Pull block, the outside of the pull rod is sleeved with a spring, the spring is located between the lower surface of the limit plate and the inner side of the conductive block, there are two threaded support rods, which are symmetrically arranged on both sides of the pull rod, the upper end of which is connected to the limit The lower surface of the plate is vertically and fixedly connected, the lower end passes through the limit hole to the outside of the conductive block, the threaded support rod and the limit hole are slidably connected, and the outer thread of the upper end of the threaded support rod is connected with the limit screw sleeve.

The limiting hole is in the shape of a circle, and a clamping block is fixedly arranged inside it, and the outer surface of the threaded support rod is provided with a clamping groove matched with the structure of the clamping block along the length direction thereof.

The bottom surface of the card slot is provided with a scale.

The adjusting block is circular, and its diameter is larger than the diameter of the rotating shaft, and the adjusting groove is a regular hexagonal structure.

The length of the wing plate is greater than the width of the limiting plate.

Beneficial effects of the utility model: The utility model is provided with a limit plate, a pull rod, a threaded support rod, a limit screw sleeve and a pull block. When in use, the pull block is first pulled downward, so as to drive the limit plate on the conductive block through the pull rod. slide down to open the opening of the wiring clip, then hook the utility model to the bus bridge that needs to be grounded, and release the pull block. Slide and contact the bus bridge, and finally, turn the limit screw sleeve on the upper end of the threaded support rod, and use the threaded connection between the threaded support rod and the limit screw sleeve to make the limit screw sleeve move down while rotating, thereby The close contact between the limit screw sleeve and the inner surface of the conductive block is used to realize the close contact between the limit plate and the bus bridge; the utility model is provided with a wing plate, a connecting rod, an adjustment block, an adjustment groove, an adjustment rod and a sleeve, When in use, place the tool in the adjusting groove, and rotate the adjusting groove. The rotation of the adjusting groove drives the rotation of the adjusting rod through the adjusting block. At this time, the threaded connection between the adjusting rod and the casing is used to make the adjusting rod rotate. At the same time, the horizontal displacement occurs, and the horizontal displacement of the adjusting rod drives the movement of the adjusting block and the connecting rod, and then drives the horizontal displacement of the wing plate through the connecting rod, so that the wing plate and the bus bridge are in close contact. The utility model adopts this structure, The use of the limit plate, the wing plate and the conductive block to limit and fix the bus bridge at the same time increases the connection stability between the bus bridge and the bus bridge when the utility model is used, and also improves the use effect of the utility model; in general, The utility model has the advantages of stable connection and good use effect.

Description of drawings

Figure 1 is a front view of the present invention.

FIG. 2 is a partial enlarged view of FIG. 1 .

3 is a top view of the connection between the threaded support rod and the limiting hole in the present invention.

Figure 4 is a side view of the connection between the limit plate and the wing plate in the present invention

In the figure: 1. Conductive block 11, limit hole 12, clamping block 2, limit device 21, limit plate 22, wing plate 23, pull rod 24, threaded support rod 241, card slot 25, connecting rod 26, rotating shaft 27 , Adjustment block 271, adjustment groove 28, adjustment rod 29, sleeve 3, pull block 4, spring 5, limit screw sleeve.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

Example: As shown in Figure 1, Figure 2, Figure 3, Figure 4, a grounding clip for a bus bridge includes a conductive block 1 and a limiting device 2, the conductive block 1 is a U-shaped structure, and the inner The bottom surface is provided with a chute, the middle position of the inner side is provided with a through hole, and limit holes 11 are respectively provided on both sides of the through hole. 22. The tie rod 23 and the threaded support rod 24, the left end of the limit plate 21 is provided with a slider, and the sliding connection between it and the conductive block 1 is realized through the cooperative connection between the slider and the sliding groove. The wing plate 22 It is located at the upper end of the limiting plate 21, and there is no contact between the wing plate 22 and the limiting plate 21. The length of the wing plate 22 is greater than the width of the limiting plate 21, and connecting rods 25 are fixed on both sides of the wing plate 22. , the upper end of the connecting rod 25 is fixedly connected with the wing plate 22, and the lower end is provided with a rotating hole, and a rotating shaft 26 is rotated inside the rotating hole. An adjustment rod 28 is connected, an adjustment groove 271 is provided at the center of the right adjustment block 27, a sleeve 29 is fixedly arranged in the middle position of both sides of the limit plate 21, and one end of the adjustment rod 28 is fixed to the adjustment block 27 The other end is located in the sleeve 29 and is threadedly connected with the sleeve 29; the tie rod 23 is located at the lower end of the limit plate 21, and its upper end is vertically fixedly connected with the middle position of the lower surface of the limit plate 21, and the lower end passes through the through hole Passing out to the outside of the conductive block 1 and fixedly connected with a pull block 3, the outside of the pull rod 23 is sleeved with a spring 4, the spring 4 is located between the lower surface of the limit plate 21 and the inner side of the conductive block 1, the threaded support rod 24 There are two, which are symmetrically arranged on both sides of the tie rod 23, the upper end of which is vertically and fixedly connected to the lower surface of the limit plate 21, the lower end passes through the limit hole 11 to the outside of the conductive block 1, and the threaded support rod 24 is connected to the limit The holes 11 are slidably connected, and the outer thread of the upper end of the threaded support rod 24 is connected to the limiting screw sleeve 5 .

The limiting hole 11 is in the shape of a circle, and a clamping block 12 is fixed inside it. The outer surface of the threaded support rod 24 is provided with a clamping groove 241 along the length direction of the clamping block 12; the clamping groove The bottom surface of the groove of 241 is provided with a scale, which can be used to directly observe the connection position of the limit screw sleeve 5 and the threaded support rod 24, so as to avoid the tight contact between the limit plate 21 and the bus bridge by adjusting the limit screw sleeve 5. When the force is uneven at both ends of the limiting plate 21, the adjustment block 27 is circular, and its diameter is larger than the diameter of the rotating shaft 26, and the adjustment groove 271 has a regular hexagonal structure, which is convenient to use. The adjustment groove 271 is rotated by a hexagonal wrench.

When the utility model is in use, first, pull the pull block 3 downward, the downward movement of the pull block 3 can drive the limit plate 21 to slide downward in the conductive block 1 through the pull rod 23, so that the opening of the wiring clip is opened, and at the same time, The downward sliding of the limit plate 21 in the conductive block 1 can also cause the spring 4 to be compressed and the threaded support rod 24 to slide downward; then, the utility model is hung on the bus bridge that needs to be grounded, and the pull block is released. 3. At this time, the limit plate 21 slides upward in the conductive block 1 under the action of the elastic force of the spring 4, and contacts the bus bridge. Finally, the limit screw sleeve 5 on the upper end of the threaded support The threaded connection between the limit screw sleeves 5 makes the limit screw sleeve 5 move downward while rotating. When the limit screw sleeve 5 is in contact with the inner surface of the conductive block 1, continue to rotate the limit screw sleeve 5 and use the The threaded connection between the limit screw sleeve 5 and the threaded support rod 24, at this time, the rotation of the limit screw sleeve 5 can drive the threaded support rod 24 to move upward, thereby realizing the tight contact between the limit plate 21 and the bus bridge; After completing the above operations, place the hexagonal wrench in the adjustment slot 271, and rotate the adjustment slot 271. The rotation of the adjustment slot 271 drives the rotation of the adjustment rod 28 through the adjustment block 27. The threaded connection between them makes the adjustment rod 28 rotate horizontally, and the horizontal displacement of the adjustment rod 28 drives the movement of the adjustment block 27 and the connecting rod 25, and then drives the horizontal displacement of the wing plate 22 through the connecting rod 25, thereby The wing plate 22 is in close contact with the bus bridge. The utility model adopts this structure, and the limit plate 21, the wing plate 22 and the conductive block 1 are used to limit and fix the bus bridge at the same time. The connection stability is improved, and the use effect of the utility model is also improved; in general, the utility model has the advantages of stable connection and good use effect.

Claims (5)

1. The utility model provides a ground clamp for generating line bridge, includes conducting block and stop device, its characterized in that: the conductive block is of a U-shaped structure, a sliding groove is formed in the inner bottom surface of the conductive block, a through hole is formed in the middle of the inner side surface of the conductive block, limiting holes are formed in two sides of the through hole respectively, the limiting device is located inside the conductive block and comprises a limiting plate, a wing plate, a pull rod and a threaded support rod, a sliding block is arranged at the left end of the limiting plate, sliding connection between the limiting plate and the conductive block is achieved through matching connection between the sliding block and the sliding groove, the wing plate is located at the upper end of the limiting plate and is not in contact with the limiting plate, connecting rods are fixedly arranged on two sides of the wing plate, the upper end of each connecting rod is fixedly connected with the wing plate, a rotating hole is formed in the lower end of each rotating hole, a rotating shaft is rotatably arranged inside each rotating hole, adjusting blocks are fixedly arranged at two ends of the rotating shaft, one end of the adjusting rod is fixedly connected with the adjusting block, and the other end of the adjusting rod is positioned in the sleeve and is in threaded connection with the sleeve; the pull rod is located the lower extreme of limiting plate, its upper end and the perpendicular fixed connection of intermediate position of limiting plate lower surface, and the lower extreme is worn out to the conducting block outside and fixedly connected with through-hole and is drawn the piece, the outside cover of pull rod is equipped with the spring, and the spring is located between limiting plate lower surface and the conducting block medial surface, screw thread branch has two, and the symmetry sets up respectively in the both sides of pull rod, its upper end and the perpendicular fixed connection of lower surface of limiting plate, and the lower extreme is worn out to the outside of conducting block through spacing hole, sliding connection between screw thread branch and the spacing hole, and the outside threaded connection of screw.

2. The ground clamp for the bus bar bridge as set forth in claim 1, wherein: the limiting hole is circular, a clamping block is fixedly arranged in the limiting hole, and a clamping groove matched with the clamping block structure is formed in the outer surface of the threaded support rod along the length direction of the threaded support rod.

3. The ground clamp for the bus bar bridge as set forth in claim 2, wherein: the bottom surface of the clamping groove is provided with scales.

4. The ground clamp for the bus bar bridge as set forth in claim 1, wherein: the adjusting block is circular, the diameter of the adjusting block is larger than that of the rotating shaft, and the adjusting groove is of a regular hexagon structure.

5. The ground clamp for the bus bar bridge as set forth in claim 1, wherein: the length of the wing plate is larger than the width of the limiting plate.

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