Cable pillar insulation fixing device

Abstract

The utility model relates to a cable pillar insulation fixing device, and relates to the technical field of cable fixation, the cable pillar insulation fixing device comprises a clamping body, a clamping block and an adjusting bolt, the clamping body is provided with a mounting cavity for placing the end part of an insulator, and a clamping cavity for placing and limiting the clamping block and communicating with the mounting cavity, an adjusting through hole for the adjusting bolt to penetrate through is formed in the clamping body, and an adjusting nut arranged on the periphery of the adjusting bolt in a threaded and sleeving mode is fixedly embedded in the inner wall of the adjusting through hole. The end, inserted into the mounting cavity, of the adjusting bolt is coaxially and fixedly provided with an inserting rod, the inserting rod is rotationally connected with the clamping block, the adjusting bolt can rotate around the axis of the adjusting bolt relative to the clamping block, the clamping block can slide in a reciprocating mode along the axis of the adjusting bolt, and the side face, away from the adjusting bolt, of the clamping block is provided with an arc-shaped clamping groove. According to the invention, the cable and the insulator do not need to be bound by an additional wire, the consumed time is shorter, and the assembly is firmer and more stable.

Description

Technical Field

[0001] This application relates to the technical field of cable fixing, and in particular to an insulating fixing device for a cable support pillar. Background Art

[0002] With the continuous development of the current domestic power grid construction work, power supply users have higher and higher requirements for the reliability and uninterrupted power supply of the distribution network, and put forward higher requirements for the reliability of insulator binding. In the erection of distribution overhead lines, there are many scenarios for fixing conductors and insulators.

[0003] Among them, the number of scenarios for fixing the pin insulator and the conductor is the largest. At present, the main solution for insulator binding in this scenario is that the staff manually fix the conductor on the insulator using a binding wire according to the "cross top binding method". When operating this method, the operator can use the pre-prepared BV wire or the single-strand bare aluminum wire disassembled from the locally available aluminum stranded wire for binding, which is widely used.

[0004] Through analysis, it is found that the existing manual winding and binding method has several inherent drawbacks. One is that using BV wire and single-strand aluminum wire as the binding wire and winding it on the operating conductor with current passing through will generate "eddy currents" in the binding wire, and electrochemical corrosion will occur in a humid environment, which will endanger the safe and stable operation of the line. The second is that it is greatly affected by individual factors of construction workers, and there are problems such as inconsistent binding wire processes, and the number of winding turns of the binding wire and the tightness of conductor fixing cannot be completely unified. The third is that there are situations such as using waste aluminum stranded wire, binding wire obtained locally, and reusing old binding wires, and the quality control of the selected binding wire materials is uneven. The above factors will all affect the binding quality of the manual winding and binding method, and thus form potential hazards for line operation and cause faults in the operating line. Summary of the Utility Model

[0005] The purpose of this application is to provide an insulating fixing device for a cable support pillar to solve the problem of potential safety hazards in the traditional binding method of conductors and insulators in the above related technologies.

[0006] The insulating fixing device for a cable support pillar provided by this application adopts the following technical solution:

[0007] A cable support insulation fixing device comprises a clamping body, a clamping block and an adjusting bolt, the clamping body is provided with an installation cavity for inserting the end of the insulator, a clamping cavity for inserting the clamping block into a limited position and connected to the installation cavity, the clamping body is provided with an adjusting through hole for the adjusting bolt to pass through, an adjusting nut threadedly sleeved on the outer periphery of the adjusting bolt is fixedly embedded on the inner wall of the adjusting through hole; an insert rod is coaxially fixed to the end of the adjusting bolt inserted into the installation cavity, the insert rod is rotatably connected to the clamping block, the adjusting bolt can rotate around its own axis relative to the clamping block, the clamping block can reciprocate along the axis of the adjusting bolt, and an arc-shaped clamping groove is provided on the side of the clamping block away from the adjusting bolt.

[0008] By adopting the above technical solution, when the cable and the insulator are fixed, the insulator is placed in the installation cavity in advance, and then the cable is placed under the clamping block. Finally, the adjusting bolt is rotated using a tool to make the adjusting bolt rotate around its own axis relative to the clamping block. The clamping block can slide along the axis of the adjusting bolt toward the cable, so that the outer periphery of the cable is respectively pressed against the inner wall of the arc-shaped clamping groove and the end of the insulator. In this way, the cable and the insulator can be fixed without the need for additional wires to bind the cable and the insulator. It takes less time and the assembly is more firm and stable.

[0009] Optionally, the clamping block has a plurality of anti-slip convex strips evenly distributed on the inner wall of the arc-shaped clamping groove.

[0010] By adopting the above technical solution, when the clamping block presses against the outer circumference of the cable, the anti-slip convex strip presses against the cable, thereby increasing the pressing force of the clamping block against the outer circumference of the cable.

[0011] Optionally, the clamping block is provided with a positioning through hole for the adjusting bolt to pass through and rotate, the inner edge of the opening of the positioning through hole away from the adjusting bolt is provided with a positioning groove, and the end of the insertion rod is provided with a locking piece located inside the positioning groove, and the locking piece is used to prevent the insertion rod from falling out of the positioning through hole.

[0012] By adopting the above technical solution, due to the coordinated arrangement of the positioning through hole, the positioning groove and the locking piece, the insertion rod is better rotationally limited by the positioning through hole, and the possibility of the insertion rod escaping from the positioning through hole is also reduced by the locking piece.

[0013] Optionally, the locking member is a flange fixed to the edge of the end of the insertion rod, and the flange is bent in a direction close to the inner wall of the positioning groove.

[0014] By adopting the above technical solution, due to the setting of the flange, after the end of the insertion rod passes through the positioning through hole and is placed inside the positioning groove, a tool is used to bend the flange toward the inner wall of the positioning groove, thereby achieving limited fixation of the insertion rod.

[0015] Optionally, the locking member is a locking bolt located inside the positioning groove, the locking bolt includes a nut portion and a screw rod portion fixed to one side of the nut portion, the nut portion is provided with a hexagonal groove, and the end of the insertion rod is provided with a locking screw hole for the screw rod portion to be screwed into.

[0016] By adopting the above technical solution, due to the setting of the locking bolt, the locking bolt can be rotated by inserting an hexagonal wrench into the hexagonal groove, and then the screw rod part is screwed into the locking screw hole, and the nut part is completely placed inside the positioning groove.

[0017] Optionally, a traction handle is hingedly connected to the nut portion, and a receiving groove for the traction handle to be hingedly placed therein is provided on the nut portion, and a clearance notch is provided on an opening edge of the receiving groove.

[0018] By adopting the above technical solution, due to the setting of the traction handle, when the staff tightens the locking bolt, the traction handle can be rotated out of the accommodating groove through the clearance gap, and then the locking bolt is driven to rotate by rotating the traction handle, thereby tightening the locking bolt; after tightening, the traction handle is rotated into the accommodating groove again; this makes it easy to tighten the locking bolt and also to store the traction handle.

[0019] Optionally, the clamping block is provided with a fixed groove at the opening edge of the positioning through hole toward the adjusting bolt, a butterfly gasket is sleeved on the outer periphery of the insertion rod, the connecting surface between the adjusting bolt and the insertion rod is a stepped surface, and the two ends of the butterfly gasket are respectively abutted against the stepped surface and the bottom side of the fixed groove.

[0020] By adopting the above technical solution, after the locking member assembles the adjusting bolt and the clamping block, due to the setting of the butterfly gasket, there is a good pre-tightening force between the adjusting bolt and the clamping block, thereby improving the assembly stability of the adjusting bolt and the clamping block.

[0021] Optionally, a support gasket is sleeved on the outer circumference of the insertion rod, and two sides of the support gasket are respectively in contact with the butterfly gasket and the bottom side of the fixed sink.

[0022] By adopting the above technical solution, the pressing force of the butterfly gasket is applied to the clamping block more evenly, reducing the possibility of cracks being squeezed out of the bottom side of the fixed sink by the butterfly gasket.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When fixing the cable and the insulator, the outer periphery of the cable is pressed against the inner wall of the arc-shaped clamping groove and the end of the insulator respectively, so that the cable and the insulator can be fixed. No additional wire is needed to bundle the cable and the insulator, which saves time and makes the assembly more firm and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0027] Figure 2 It is a schematic diagram of the explosion structure of Example 1 of the present application;

[0028] Figure 3 It is a cross-sectional structural schematic diagram of the installation and matching of the butterfly gasket and the support gasket in Example 1 of the present application;

[0029] Figure 4 yes Figure 3 A magnified schematic diagram of part A;

[0030] Figure 5 is a schematic cross-sectional structural diagram of the installation and cooperation of the locking member in Embodiment 2 of the present application;

[0031] Figure 6 It is a schematic diagram of the structure of the locking bolt according to Example 2 of the present application.

[0032] In the figure, 1. clamping body; 11. installation cavity; 111. installation opening; 112. limit opening; 12. clamping cavity; 13. adjustment through hole; 14. adjustment nut; 2. clamping block; 21. arc-shaped clamping groove; 22. anti-skid convex strip; 23. reinforcing rib; 24. positioning through hole; 25. positioning recessed groove; 26. fixing recessed groove; 3. adjusting bolt; 31. insert rod; 311. locking screw hole; 5. locking piece; 51. flange; 52. locking bolt; 521. nut part; 5211. hexagonal recessed groove; 5212. accommodation groove; 5213. clearance gap; 522. screw part; 523. traction handle; 6. butterfly gasket; 7. supporting gasket. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0034] Embodiment 1:

[0035] Reference Figure 1 , Figure 2 and Figure 3 A cable support insulation fixing device comprises a clamping body 1, a clamping block 2 and an adjusting bolt 3, wherein the clamping body 1 is provided with an installation cavity 11 for placing the end of the insulator, and the inner wall of the installation cavity 11 is further provided with a clamping cavity 12 for placing the clamping block 2;

[0036] The clamping body 1 is provided with an adjustment through hole 13 for the adjustment bolt 3 to pass through, and an adjustment nut 14 with a thread sleeved on the outer periphery of the adjustment bolt 3 is fixedly embedded on the inner wall of the adjustment through hole 13; an insertion rod 31 is integrally formed coaxially at the end of the adjustment bolt 3 inserted into the installation cavity 11, wherein the insertion rod 31 is rotatably connected with the clamping block 2, an arc-shaped clamping groove 21 is arranged on the side of the clamping block 2 away from the adjustment bolt 3, and the clamping cavity 12 is used for circumferentially limiting the clamping block 2 to prevent the clamping block 2 from rotating coaxially with the adjustment bolt 3;

[0037] When fixing the cable on the insulator, first place the insulator in the installation cavity 11, then place the cable under the clamping block 2, and finally use a tool to rotate the adjustment bolt 3 so that the adjustment bolt 3 rotates around its own axis relative to the clamping block 2, and the clamping block 2 can slide along the axis of the adjustment bolt 3 towards the direction close to the cable, so that the outer periphery of the cable is respectively in tight contact with the inner wall of the arc-shaped clamping groove 21 and the end of the insulator.

[0038] Refer to Figure 3 , the opening sizes of the opposite sides of the installation cavity 11 are different, the larger opening is the installation opening 111 for the insulator to be placed in, the smaller opening is the limiting opening 112 for limiting the insulator, and the cross-sectional shape of the installation cavity 11 is adapted to the outer periphery of the end of the insulator.

[0039] Refer to Figure 2 and Figure 3 , a number of anti-slip ridges 22 are evenly distributed on the inner wall of the arc-shaped clamping groove 21 of the clamping block 2 to improve the tightening force of the clamping block 2 on the outer periphery of the cable. Two reinforcing rib plates 23 are symmetrically fixed on the outer side surface of the clamping block 2 to improve the structural strength of the clamping block 2.

[0040] Refer to Figure 3 , the clamping block 2 is provided with a positioning through hole 24 for the adjustment bolt 3 to pass through and rotate, wherein a positioning sink 25 is arranged at the inner edge of the opening of the positioning through hole 24 away from the adjustment bolt 3, and a locking member 5 located inside the positioning sink 25 is arranged at the end of the insertion rod 31, which can fix the end of the insertion rod 31 without affecting the rotational connection between the insertion rod 31 and the clamping block 2, thereby preventing the insertion rod 31 from disengaging from the positioning through hole 24.

[0041] Refer to Figure 3 and Figure 4 , the locking member 5 is a flanging 51 integrally formed at the edge of the end of the insertion rod 31. After the end of the insertion rod 31 passes through the positioning through hole 24 and is placed inside the positioning sink 25, use a tool to bend the flanging 51 towards the direction close to the inner wall of the positioning sink 25, thereby realizing the limiting and fixing of the insertion rod 31.

[0042] Refer to Figure 3The clamping block 2 is provided with a fixed recessed groove 26 at the opening edge of the positioning through hole 24 toward the adjusting bolt 3, wherein a butterfly washer 6 and a supporting washer 7 are sleeved on the outer periphery of the insert rod 31, and the connecting surface between the adjusting bolt 3 and the insert rod 31 is a stepped surface, and the two ends of the butterfly washer 6 are respectively pressed against the stepped surface and one side of the supporting washer 7, and the other side of the supporting washer 7 is pressed against the bottom side of the fixed recessed groove 26;

[0043] The butterfly gasket 6 has good elastic properties, and the supporting gasket 7 can prevent the butterfly gasket 6 from directly abutting against the fixed groove 26, so that the clamping force of the butterfly gasket 6 is more evenly applied to the clamping block 2, so that there is a good pre-tightening force between the adjusting bolt 3 and the clamping block 2, thereby improving the assembly stability of the adjusting bolt 3 and the clamping block 2.

[0044] The implementation principle of the embodiment of the present application is:

[0045] When fixing the cable on the insulator, the insulator is placed in the installation cavity 11 in advance, and then the cable is placed under the clamping block 2. Finally, the adjusting bolt 3 is rotated with a tool to make the adjusting bolt 3 rotate around its own axis relative to the clamping block 2. The clamping block 2 can slide along the axis of the adjusting bolt 3 toward the cable, so that the outer periphery of the cable is respectively pressed against the inner wall of the arc-shaped clamping groove 21 and the end of the insulator; there is no need to use additional wire to bundle the cable and the insulator, which is more convenient and the fixation is more firm and stable.

[0046] Embodiment 2:

[0047] Reference Figure 5 and Figure 6 The difference between the embodiment of the present application and embodiment 1 is that the locking member 5 is a locking bolt 52 located inside the positioning groove 25, wherein the locking bolt 52 includes a nut portion 521 and a screw portion 522 fixed to one side of the nut portion 521, and the nut portion 521 is provided with a hexagonal groove 5211, and the end of the insertion rod 31 is provided with a locking screw hole 311 for the screw portion 522 to be screwed into. When the screw portion 522 is screwed into the locking screw hole 311, the nut portion 521 is completely placed inside the positioning groove 25.

[0048] Reference Figure 5 and Figure 6 A traction handle 523 is hinged on the nut portion 521, and a receiving groove 5212 is provided on the nut portion 521 for the traction handle 523 to be hingedly placed therein, and a clearance notch 5213 is provided on the opening edge of the receiving groove 5212; when the staff tightens the locking bolt 52, the traction handle 523 can be rotated out of the receiving groove 5212 through the clearance notch 5213, and then the locking bolt 52 is driven to rotate by rotating the traction handle 523, thereby tightening the locking bolt 52.

[0049] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meanings as understood by those of ordinary skill in the art to which this application pertains. The terms "first", "second", "third" and similar words used in the text of this application do not denote any order, quantity or importance, but are only used to distinguish different components. Similar words such as "a" or "an" do not denote a quantity limitation either, but indicate that there is at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0050] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.

Claims

1. A cable support insulation fixing device, characterized in that: The invention comprises a clamping body (1), a clamping block (2) and an adjusting bolt (3); the clamping body (1) is provided with an installation cavity (11) for placing the end of the insulator, and a clamping cavity (12) for placing the clamping block (2) in a limited position and communicating with the installation cavity (11); the clamping body (1) is provided with an adjusting through hole (13) for the adjusting bolt (3) to pass through; an adjusting nut (14) which is threadedly sleeved on the outer periphery of the adjusting bolt (3) is fixedly embedded on the inner wall of the adjusting through hole (13); The end of the adjusting bolt (3) inserted into the mounting cavity (11) is coaxially fixed with an insertion rod (31), and the insertion rod (31) is rotatably connected to the clamping block (2). The adjusting bolt (3) can rotate around its own axis relative to the clamping block (2), and the clamping block (2) can reciprocate along the axis of the adjusting bolt (3). The side of the clamping block (2) away from the adjusting bolt (3) is provided with an arc-shaped clamping groove (21).

2. A cable support insulation fixing device according to claim 1, characterized in that: The clamping block (2) has a plurality of anti-slip convex strips (22) evenly distributed on the inner wall of the arc-shaped clamping groove (21).

3. A cable support insulation fixing device according to claim 1, characterized in that: The clamping block (2) is provided with a positioning through hole (24) for the adjusting bolt (3) to pass through and rotate, and the inner edge of the opening of the positioning through hole (24) away from the adjusting bolt (3) is provided with a positioning recessed groove (25), and the end of the insertion rod (31) is provided with a locking piece (5) located inside the positioning recessed groove (25), and the locking piece (5) is used to prevent the insertion rod (31) from falling out of the positioning through hole (24).

4. A cable support insulation fixing device according to claim 3, characterized in that: The locking member (5) is a flange (51) fixedly arranged on the edge of the end of the insertion rod (31), and the flange (51) is bent in a direction close to the inner wall of the positioning groove (25).

5. A cable support insulation fixing device according to claim 3, characterized in that: The locking member (5) is a locking bolt (52) located inside the positioning recessed groove (25), and the locking bolt (52) comprises a nut portion (521) and a screw portion (522) fixed to one side of the nut portion (521), and the nut portion (521) is provided with a hexagonal recessed groove (5211), and the end of the insertion rod (31) is provided with a locking screw hole (311) for the screw portion (522) to be screwed into.

6. A cable support insulation fixing device according to claim 5, characterized in that: A traction handle (523) is hingedly connected to the nut portion (521), and a receiving groove (5212) is provided on the nut portion (521) for the traction handle (523) to be hingedly placed therein, and a clearance notch (5213) is provided on the opening edge of the receiving groove (5212).

7. A cable support insulation fixing device according to claim 3, characterized in that: The clamping block (2) is provided with a fixed recessed groove (26) at the opening edge of the positioning through hole (24) facing the adjusting bolt (3), and a butterfly washer (6) is sleeved on the outer periphery of the insertion rod (31). The connecting surface between the adjusting bolt (3) and the insertion rod (31) is a stepped surface, and the two ends of the butterfly washer (6) are respectively in contact with the stepped surface and the bottom side of the fixed recessed groove (26).

8. A cable support insulation fixing device according to claim 7, characterized in that: A supporting gasket (7) is also sleeved on the outer periphery of the insert rod (31), and two sides of the supporting gasket (7) are respectively in contact with the butterfly gasket (6) and the bottom side of the fixed sink groove (26).

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