Live-line assembling and disassembling wire clamp

Abstract

The utility model discloses a live loading and unloading wire clamp, which comprises a wire clamp main body, a screw rod and a pressing block, and is characterized in that the wire clamp main body comprises a vertical beam part, a connecting part arranged at the upper end of the vertical beam part, a supporting part arranged at the lower end of the vertical beam part, and a bracket arranged in the middle of the vertical beam part and positioned above the supporting part, and the bracket is provided with a screw hole; the screw rod is in threaded fit with the screw hole, and the pressing block is arranged at the end, close to the supporting part, of the screw rod; the two sides of the supporting part are each provided with a limiting guide rail extending outwards, the two sides of the pressing block are each provided with a clamping plate, and guide grooves matched with the corresponding limiting guide rails are formed in the inner sides of the clamping plates. The limiting structure is additionally arranged, so that the risk that parts of a product fall off during high-altitude installation can be effectively avoided, and the overall safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire clamps, in particular to a live wire clamp for assembly and disassembly. Background Art

[0002] The live wire clamp is a connecting component used to connect the transformer drop fuse lead to the high-voltage overhead line or the 10kV branch line to the 10kV main pole line. The utility model patent with patent application number CN201020607563.4 discloses a live wire clamp, which includes a clamp body, a wire clamp block and a screw rod, wherein the wire clamp block and the screw rod cooperate in the following manner: the wire clamp block is a groove-shaped structure, a circular hole is provided on the bottom plate of the groove-shaped structure, an optical axis is provided at the upper end of the screw rod, the wire clamp block is connected to the optical axis at the upper end of the screw rod through the circular hole, and a rotating pair is provided between the wire clamp block and the screw rod.

[0003] Since the wire clamping block in this structure has no designed limiting structure, the wire clamping block is prone to fall off during high-altitude installation operations, and its safety performance is poor. Utility Model Content

[0004] The utility model aims to provide a live loading and unloading wire clamp. The utility model adds a limiting structure, which can effectively avoid the risk of parts falling off during high-altitude installation of the product, thereby improving the overall safety performance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a live loading and unloading wire clamp, comprising a wire clamp body, a screw rod and a pressure block, the wire clamp body comprising a vertical beam portion, a connecting portion arranged at the upper end of the vertical beam portion, a supporting portion arranged at the lower end of the vertical beam portion, and a bracket arranged in the middle of the vertical beam portion and located above the supporting portion, the bracket being provided with a screw hole, the screw rod being threadedly matched with the screw hole, the pressure block being arranged at one end of the screw rod close to the supporting portion; a limiting guide rail extending outward is respectively provided on both sides of the supporting portion, a clamping plate is respectively provided on both sides of the clamping plate, and a guide groove matching the corresponding limiting guide rail is provided on the inner side of the clamping plate.

[0006] By adopting the above technical solution, a limiting structure is set on the pressing block, that is, a card plate with a guide groove is set on the pressing block, and the guide groove on the card plate cooperates with the guide rail of the wire clamp body to limit the pressing block on the wire clamp body, and the pressing block can be moved vertically under the action of the screw to clamp or loosen the cable, thereby effectively avoiding the risk of parts falling off of the product during high-altitude installation, thereby improving the overall safety performance.

[0007] The utility model is further configured that the support portion is in an arc shape that is concave at the top and convex at the bottom, and the limiting guide rails extend to both sides of the support portion.

[0008] By adopting the above technical solution, the support part is designed in an arc shape. When the pressure block presses the cable against the support part, the support part can better wrap the cable, thereby restraining the cable and improving the stability of the cable clamping structure. After the limiting guide rail extends to both sides of the support part, even if the pressure block slides to the lower end, due to the limitation of the support part, the pressure block is not easy to detach from the guide rail and fall off at high altitude, thereby further improving the safety performance of the product.

[0009] The utility model is further configured such that the width of the position limiting guide rail gradually decreases as it approaches the outer end of the support portion.

[0010] By adopting the above technical solution, it is easy for the pressing block to slide in from the outer end of the support part, that is, the guide groove on the pressing block clamping plate cooperates with the limiting guide rail, which greatly facilitates the disassembly and assembly operation of the pressing block.

[0011] The utility model is further configured such that the bottom end of the pressing block is in a concave arc shape.

[0012] By adopting the above technical solution, the shape of the bottom end of the pressing block is adapted to the outer peripheral shape of the cable, which improves the stability of cable installation and reduces the degree of damage to the cable surface.

[0013] The utility model is further configured that the side of the pressing block close to the vertical beam portion and the side away from the vertical beam portion are arc-shaped surfaces that match the shape of the upper surface of the support portion.

[0014] By adopting the above technical solution, the structure is reasonable and beautiful, and interference between the pressing block and the supporting part is avoided.

[0015] The utility model is further configured that a first optical axis portion is provided at the lower end of the screw rod, and a circular groove matching with the first optical axis portion is provided on the pressing block.

[0016] By adopting the above technical solution, the rotational coordination between the screw and the pressing block is achieved, the structure is simple and reliable, and the processing is very convenient.

[0017] The utility model is further configured such that an annular groove is circumferentially arranged on the outer wall of the first optical axis portion, a plurality of limit screws are arranged on the pressing block, and the inner ends of the limit screws extend into the annular groove.

[0018] By adopting the above technical solution, the rotational coordination between the screw and the pressure block can be achieved, and the limit screw axially limits the pressure block, so that the pressure block can move axially synchronously with the screw, which greatly facilitates the operation of high-altitude cable clamping.

[0019] The utility model is further configured that a second optical axis portion is provided at the upper end of the screw rod, and a diameter of the second optical axis portion is greater than a diameter of the screw rod.

[0020] By adopting the above technical solution, a step can be formed between the two to prevent the screw from being screwed in too far and damaging the cable.

[0021] The utility model is further configured such that a hanging ring is provided at the outer end of the second optical axis portion.

[0022] By adopting the above technical solution, the lifting ring is used as a force point, which can make the operation of rotating the screw rod simpler and more convenient, and facilitate the loading and unloading of the wire clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of the utility model as a whole;

[0024] Figure 2 It is a right side view of the utility model as a whole;

[0025] Figure 3 It is a rear view of the utility model as a whole;

[0026] Figure 4 This is a schematic diagram of the structure of the briquette of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the screw rod of the utility model;

[0028] Figure 6 It is a top view of the matching structure of the screw rod and the pressing block of the utility model;

[0029] Figure 7 for Figure 6 AA section view.

[0030] In the figure: 1. wire clamp body; 2. screw rod; 3. pressure block; 4. vertical beam part; 5. connecting part; 6. supporting part; 7. bracket; 8. screw hole; 9. limiting guide rail; 10. clamping plate; 11. guide groove; 12. first optical axis part; 13. circular groove; 14. annular groove; 15. limiting screw; 16. second optical axis part; 17. lifting ring. DETAILED DESCRIPTION

[0031] 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.

[0032] Example: As attached Figures 1 to 7The live loading and unloading wire clamp shown in the figure comprises a wire clamp body 1, a screw rod 2 and a pressure block 3. The wire clamp body 1 comprises a vertical beam portion 4, a connecting portion 5 arranged at the upper end of the vertical beam portion 4, a supporting portion 6 arranged at the lower end of the vertical beam portion 4, and a bracket 7 arranged in the middle of the vertical beam portion 4 and located above the supporting portion 6. The vertical beam portion 4, the connecting portion 5, the supporting portion 6 and the bracket 7 are an integrated structure. Two threaded holes are provided on the connecting portion 5 for installing power connection screws. The bracket 7 and the connecting portion 5 have an arc transition. A screw hole 8 is provided on the bracket 7. The screw rod 2 is threadedly matched with the screw hole 8. The pressure block 3 is arranged at one end of the screw rod 2 close to the supporting portion 6; a limiting guide rail 9 extending outward is respectively provided on both sides of the supporting portion 6, and the two limiting guide rails 9 are symmetrically arranged. A clamping plate 10 is respectively provided on both sides of the clamping plate 10, and a guide groove 11 matching the corresponding limiting guide rail 9 is provided on the inner side of the clamping plate 10, and the guide groove 11 is gap-matched with the corresponding guide rail. By providing a limiting structure on the pressing block 3, that is, providing a card plate 10 with a guide groove 11 on the pressing block 3, the guide groove 11 on the card plate 10 cooperates with the guide rail of the wire clamp body 1 to limit the pressing block 3 on the wire clamp body 1, and the pressing block 3 can be vertically moved to clamp or loosen the cable under the action of the screw 2, thereby effectively avoiding the risk of parts falling off during high-altitude installation of the product, thereby improving the overall safety performance.

[0033] As attached Figures 1 to 3 As shown, the support portion 6 is in an arc shape with a concave top and a convex bottom, and the position-limiting guide rails 9 extend to both sides of the support portion 6, that is, both sides of the vertical beam portion 4 and the support portion 6 have position-limiting guide rails 9, and the position-limiting guide rails 9 at these two locations are continuous. The support portion 6 is designed in an arc shape, and when the pressing block 3 presses the cable onto the support portion 6, the support portion 6 can better wrap the cable, thereby restraining the cable and improving the stability of the cable clamping structure; after the position-limiting guide rails 9 extend to both sides of the support portion 6, even if the pressing block 3 slides to the bottom, due to the limitation of the support portion 6, the pressing block 3 is not easy to detach from the guide rails and fall off in the air, further improving the safety performance of the product.

[0034] The width of the position-limiting guide rail 9 gradually decreases as it approaches the outer end of the support portion 6, and finally the position-limiting guide rail 9 overlaps with the outer end of the support portion 6. This design facilitates the pressing block 3 to slide in from the outer end of the support portion 6, that is, the guide groove 11 on the clamping plate 10 of the pressing block 3 cooperates with the position-limiting guide rail 9, which greatly facilitates the disassembly and assembly operation of the pressing block 3.

[0035] As attached Figure 2 As shown, the bottom end of the pressing block 3 is in the shape of an inwardly concave arc surface. The shape of the bottom end of the pressing block 3 is adapted to the outer peripheral shape of the cable, which improves the stability of cable installation and reduces the degree of damage to the cable surface.

[0036] The side of the pressing block 3 close to the vertical beam 4 and the side away from the vertical beam 4 are arc-shaped to match the upper surface shape of the support 6. This design structure is reasonable and beautiful, and avoids interference between the pressing block 3 and the support 6.

[0037] As attached Figures 4 to 7 As shown, the lower end of the screw rod 2 is provided with a first optical axis portion 12, and the middle of the pressing block 3 is provided with a circular groove 13 that matches the first optical axis portion 12. This design realizes the rotational cooperation between the screw rod 2 and the pressing block 3, has a simple and reliable structure, and is very convenient to process.

[0038] As attached Figures 4 to 7 As shown, an annular groove 14 is provided on the outer wall of the first optical axis portion 12 along the circumferential direction, and a plurality of limit screws 15 are provided on the pressure block 3, and the inner ends of the limit screws 15 extend into the annular groove 14. This design can realize the rotational cooperation between the screw rod 2 and the pressure block 3, and the limit screws 15 axially limit the pressure block 3, so that the pressure block 3 can move axially synchronously with the screw rod 2, which greatly facilitates the operation of clamping cables at high altitude.

[0039] As attached Figure 5 As shown, the upper end of the screw rod 2 is provided with a second optical axis portion 16, and the diameter of the second optical axis portion 16 is larger than the diameter of the screw rod 2. A step can be formed between the two to prevent the screw rod 2 from being screwed in too far and crushing the cable.

[0040] As attached Figure 5 As shown, a lifting ring 17 is provided at the outer end of the second optical axis portion 16. The lifting ring 17 serves as a force point, which can make the operation of rotating the screw rod 2 simpler and more convenient, and is convenient for loading and unloading the wire clamp.

[0041] The screw rod 2 , the first optical axis portion 12 , the second optical axis portion 16 and the hanging ring 17 are an integrated structure.

Claims

1. A live wire clamp, comprising a wire clamp body (1), a screw (2) and a pressure block (3), wherein the wire clamp body (1) comprises a vertical beam (4), a connecting portion (5) arranged at the upper end of the vertical beam (4), a supporting portion (6) arranged at the lower end of the vertical beam (4), and a bracket (7) arranged in the middle of the vertical beam (4) and above the supporting portion (6), wherein a screw hole (8) is provided on the bracket (7), the screw (2) is threadedly matched with the screw hole (8), and the pressure block (3) is arranged at one end of the screw (2) close to the supporting portion (6); characterized in that: A limiting guide rail (9) extending outward is respectively provided on both sides of the support portion (6), and a clamping plate (10) is respectively provided on both sides of the pressing block (3), and a guide groove (11) matching the corresponding limiting guide rail (9) is provided inside the clamping plate (10).

2. The live wire clamp according to claim 1, characterized in that: The support portion (6) is in the shape of an arc that is concave at the top and convex at the bottom, and the limiting guide rails (9) extend to both sides of the support portion (6).

3. The live wire clamp according to claim 2, characterized in that: The width of the limiting guide rail (9) gradually decreases as it approaches the outer end of the support portion (6).

4. The live wire clamp according to claim 2, characterized in that: The bottom end of the pressing block (3) is in the shape of an inwardly concave arc surface.

5. The live wire clamp according to claim 2, characterized in that: The side of the pressing block (3) close to the vertical beam portion (4) and the side away from the vertical beam portion (4) are in an arc shape that matches the shape of the upper surface of the support portion (6).

6. The live wire clamp according to claim 1, characterized in that: The lower end of the screw rod (2) is provided with a first optical axis portion (12), and the pressing block (3) is provided with a circular groove (13) matching with the first optical axis portion (12).

7. The live wire clamp according to claim 6, characterized in that: An annular groove (14) is circumferentially arranged on the outer wall of the first optical axis portion (12), and a plurality of limit screws (15) are arranged on the pressing block (3), wherein the inner ends of the limit screws (15) extend into the annular groove (14).

8. The live wire clamp according to claim 1, characterized in that: A second optical axis portion (16) is provided at the upper end of the screw rod (2), and the diameter of the second optical axis portion (16) is greater than the diameter of the screw rod (2).

9. The live wire clamp according to claim 8, characterized in that: A hanging ring (17) is provided at the outer end of the second optical axis portion (16).

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