A high-voltage current lead clamp and a special live installation tool thereof

Abstract

The application discloses a high-voltage drainage wire clamp and a special live installation tool thereof, and belongs to the technical field of high-voltage drainage wire clamps. The high-voltage drainage wire clamp comprises a wire clamping base, a pressing block, a tightening rotating shaft, a column spring, a tightening rotating shaft cap, a limiting lock pin and a fixing screw. The special live installation tool comprises a wire clamp supporting rod, a ratchet sleeve wrench and a wrench operating rod. The wire clamp supporting rod and the wrench operating rod are oppositely arranged, and the wire clamp supporting rod and the wrench operating rod are connected through the ratchet sleeve wrench. The high-voltage drainage wire clamp and the special live installation tool thereof change the current vertical tightening mode of the bottom pull ring of the high-voltage drainage wire clamp, adopt a horizontal tightening mode, match the special live installation tool, have the characteristics of being convenient to hang into a wire, being not easy to fall off when the wire is tightened, and being easy to press and pierce the wire, and the like. Moreover, the installation position is accurate when the installation tool is used, and the influence on the line is small during the process of tightening the high-voltage drainage wire clamp without depending on the force of hooking the overhead wire.

Description

TECHNICAL FIELD

[0001] The present application relates to a high-voltage drainage wire clamp and its special live installation tool. BACKGROUND

[0002] In 10kV distribution lines, overhead lines in urban areas have been basically insulated. In the case of device access, line maintenance, etc., the internal core wire of the insulated conductor is stripped and exposed for lapping (grounding during power-off maintenance), or direct puncture is used for lapping (installation of lightning protection equipment, etc.).

[0003] Please refer to Figure 1 , Figure 2 and Figure 3 In the prior art, the drainage wire clamp used for lapping is mostly tightened in the vertical direction, and the lower end of the rotating rod 2' with a pull ring 1' is used to push the compression block 3' upward to compress the wire into the compression groove 4' for tightening.

[0004] The drainage wire clamp can effectively contact the bare conductor or the stripped part of the insulated conductor, but for the insulated conductor without stripping, the rotating rod needs to be tightened to compress the compression block, and it also needs to be punctured and inserted, which is somewhat laborious and unreliable.

[0005] Moreover, the various drainage wire clamps in the prior art do not have a special live installation tool. The lower end of the rotating rod 2' with a pull ring 1' is hooked by a wrench to tighten it, but in actual installation and use, it is easy to loosen during lifting, and it needs to be hung tightly downward during wire tightening, otherwise it is easy to cause the clamp to fall off during the process of hooking and tightening the pull ring, which poses a safety hazard. SUMMARY

[0006] The purpose of the present application is to overcome the defects of the prior art and provide a high-voltage drainage wire clamp and its special live installation tool. The high-voltage drainage wire clamp is horizontally tightened, which facilitates reliable clamping of bare conductors and insulated conductors, and the special live installation tool is configured, which is easy to install and reliable to use.

[0007] The technical solution to achieve the above-mentioned purpose is: a high-voltage drainage wire clamp, comprising a wire clamping base, a compression block, a tightening shaft, a column spring, a tightening shaft cap, a limiting lock pin and a fixing screw, wherein:

[0008] The lower part of the wire clamping base is provided with a wire clamping groove; the front and rear sides of the upper part of the wire clamping base are respectively provided with a tool engaging block, the front side of the wire clamping base is longitudinally provided with a limiting lock pin hole; the left side of the wire clamping base is provided with a pressing block groove, the inner side groove wall of the pressing block groove is transversely provided with a pressing block guide groove; the upper part of the right side of the wire clamping base is provided with a transversely arranged tightening shaft through hole, the limiting lock pin hole is in communication with the tightening shaft through hole; the lower part of the right side of the wire clamping base is provided with a transversely arranged fixed screw thread hole; the bottom end of the wire clamping base is provided with a vertically arranged lead thread hole, the lead thread hole is in communication with the fixed screw thread hole;

[0009] The pressing block includes a pressing block tightening column and a wire pressing groove arranged at the bottom end thereof, the pressing block tightening column is transversely arranged, the outer side wall of the pressing block tightening column is transversely provided with a pressing block guide strip, and the middle part of the pressing block tightening column is transversely provided with a left and right through tightening shaft thread hole; the pressing block is arranged in the pressing block groove, and the pressing block guide strip is inserted in the pressing block guide groove, and the tightening shaft thread hole is in communication with the tightening shaft through hole;

[0010] One end of the tightening shaft sequentially passes through the column spring, the tightening shaft through hole of the wire clamping base and the tightening shaft thread hole of the pressing block, and is connected with the tightening shaft cap; the other end of the tightening shaft is a hexagonal head;

[0011] The column spring is located between the hexagonal head of the tightening shaft and the right side of the wire clamping base, and the column spring is always in a compressed state;

[0012] The limiting lock pin is inserted into the limiting lock pin hole of the wire clamping base, and the limiting lock pin clamps the tightening shaft, so that the tightening shaft is not pulled out by the reverse elastic force of the column spring, and the tightening shaft only rotates without displacement during installation;

[0013] The fixed screw is screwed into the fixed screw thread hole of the wire clamping base.

[0014] The high-voltage drainage wire clamp has a wire clamping groove in the wire clamping base, a wire clamping groove is provided on the inner side groove wall of the wire clamping groove, and a puncture needle is connected to the puncture needle mounting hole.

[0015] The high-voltage drainage wire clamp has a wire clamping groove in the wire clamping base, a wire clamping groove is provided on the inner side groove wall of the wire clamping groove, and a puncture needle is connected to the puncture needle mounting hole.

[0016] A special live installation tool for the high-voltage drainage wire clamp includes a wire clamp support rod, a ratchet sleeve wrench and a wrench operating rod, wherein:

[0017] The wire clamp support rod comprises an F-shaped wire clamp adapter block, a sleeve left support plate, a sleeve right support plate, a support base and an insulating support rod, the F-shaped wire clamp adapter block, the sleeve left support plate and the sleeve right support plate are sequentially arranged from left to right at the top end of the support base, and the bottom end of the support base is fixed at the top end of the insulating support rod; the F-shaped wire clamp adapter block comprises a front F-shaped plate, a rear F-shaped plate and a right U-shaped plate, and the right U-shaped plate is blocked at the right end opening of the front F-shaped plate and the rear F-shaped plate; sleeve mounting holes are respectively formed in the sleeve left support plate and the sleeve right support plate;

[0018] The ratchet sleeve wrench comprises an insulating handle, a ratchet sleeve head and a wrench operation circular ring, the insulating handle is in a hollow cylindrical shape, one end of the insulating handle is connected with the ratchet sleeve head through an elastic cylindrical pin, and the other end of the insulating handle is connected with the wrench operation circular ring through an elastic cylindrical pin;

[0019] The wrench operation rod comprises an operation base, an insulating operation rod, a U-shaped support and a wrench cylindrical pin, the operation base is fixed at the top end of the insulating operation rod, the bottom end of the U-shaped support is fixed at the top end of the operation base, and the two ends of the wrench cylindrical pin are connected with the two ends of the U-shaped support in one-to-one correspondence;

[0020] The wire clamp support rod and the wrench operation rod are oppositely arranged, the two ends of the ratchet sleeve head are fitted into the sleeve mounting holes on the sleeve left support plate and the sleeve right support plate in one-to-one correspondence, and the wrench operation circular ring is located in the U-shaped support and is sleeved on the wrench cylindrical pin.

[0021] The special live-line installation tool for the high-voltage drainage wire clamp comprises an insulating support rod and an insulating operation rod, and the insulating support rod and the insulating operation rod are respectively a length-adjustable telescopic rod or a multi-section rod that can be spliced in multiple sections.

[0022] The special live-line installation tool for the high-voltage drainage wire clamp, the installation tool adapter blocks on the front and rear sides of the clamping base of the high-voltage drainage wire clamp are inserted into the front F-shaped plate and the rear F-shaped plate of the F-shaped wire clamp adapter block in one-to-one correspondence, and the hexagonal head of the tightening rotating shaft of the high-voltage drainage wire clamp is sleeved into the ratchet sleeve head after passing through the right U-shaped plate of the F-shaped wire clamp adapter block.

[0023] The high-voltage drainage wire clamp and the special live-line installation tool thereof have the characteristics that the high-voltage drainage wire clamp is tightened in the horizontal direction, matches the special live-line installation tool, is convenient to hang into a wire, is not easy to drop the tightened wire, and easily and effortlessly presses and pierces the wire, the installation position is accurate by using the installation tool, and in the process of tightening the high-voltage drainage wire clamp, the force of hooking the overhead wire is not relied on, and the influence on the line is small. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic diagram of a drainage wire clamp in the prior art;

[0025] Figure 2 is a structural schematic diagram of another drainage wire clamp in the prior art;

[0026] Figure 3 is a structural schematic diagram of a third drainage wire clamp in the prior art;

[0027] Figure 4 is a perspective structural diagram of a high-voltage drainage wire clamp of the present application;

[0028] Figure 5 is a perspective structural diagram of a wire clamping base of the high-voltage drainage wire clamp of the present application (front view);

[0029] Figure 6 is a structural schematic diagram of the wire clamping base of the high-voltage drainage wire clamp of the present application (bottom view);

[0030] Figure 7 is a structural schematic diagram of a compression block of the high-voltage drainage wire clamp of the present application;

[0031] Figure 8 is a structural schematic diagram of a special live-line installation tool of the high-voltage drainage wire clamp of the present application;

[0032] Figure 9 is a structural schematic diagram of a wire clamp support rod of the special live-line installation tool of the high-voltage drainage wire clamp of the present application;

[0033] Figure 10 is a structural schematic diagram of a ratchet sleeve wrench of the special live-line installation tool of the high-voltage drainage wire clamp of the present application;

[0034] Figure 11 is a structural schematic diagram of a wrench operating rod of the special live-line installation tool of the high-voltage drainage wire clamp of the present application;

[0035] Figure 12 is a use state diagram of the high-voltage drainage wire clamp and its special live-line installation tool of the present application. DETAILED DESCRIPTION

[0036] In order for those skilled in the art to better understand the technical solutions of the present application, the specific embodiments thereof will be described in detail below with reference to the accompanying drawings:

[0037] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 , an embodiment of the present application, a high-voltage drainage wire clamp, comprising a wire clamping base 1, a compression block 7, a tightening shaft 3, a column spring 2, a tightening shaft cap 8, a limiting lock pin 4, and a fixing screw 5.

[0038] The lower part of the wire clamping base 1 is provided with a wire clamping groove 15; the front and rear sides of the upper part of the wire clamping base 1 are respectively provided with a tool engaging block 11, and the front side of the wire clamping base 1 is longitudinally provided with a limiting lock pin hole 12; the left side of the wire clamping base 1 is provided with a pressing block groove 16, and the inner side groove wall of the pressing block groove 16 is transversely provided with a pressing block guide groove 17; the upper part of the right side of the wire clamping base 1 is provided with a transversely arranged tightening shaft through hole 18, and the limiting lock pin hole 12 is in communication with the tightening shaft through hole 18; the lower part of the right side of the wire clamping base 1 is provided with a transversely arranged fixed screw threaded hole 19; and the bottom end of the wire clamping base 1 is provided with a vertically arranged lead threaded hole 14, which is in communication with the fixed screw threaded hole 19.

[0039] The pressing block 7 comprises a pressing block tightening column 71 and a wire pressing groove 74 arranged at the bottom end of the pressing block 7, the pressing block tightening column 71 is transversely arranged, the outer side wall of the pressing block tightening column 71 is transversely provided with a pressing block guide strip 72, and the middle part of the pressing block tightening column 71 is longitudinally provided with a left and right through tightening shaft threaded hole 73; the pressing block 71 is arranged in the pressing block groove 16, and the pressing block guide strip 72 is inserted into the pressing block guide groove 17, so that the pressing block 71 can move left and right along the pressing block guide groove 17, and the tightening shaft threaded hole 73 is in communication with the tightening shaft through hole 18.

[0040] One end of the tightening shaft 3 passes through the column spring 2, the tightening shaft through hole 18 of the wire clamping base 1 and the tightening shaft threaded hole 73 of the pressing block 7 in sequence and is connected with the tightening shaft cap 8; the other end of the tightening shaft 3 is a hexagonal head 31. The limiting lock pin 4 is inserted into the limiting lock pin hole 12 of the wire clamping base 1, and the column spring 2 is located between the hexagonal head 31 of the tightening shaft 3 and the right side of the wire clamping base 1; the column spring 2 is in a certain compression state, the limiting lock pin 4 passes into the limiting lock pin hole 12 of the wire clamping base 1, clamps the tightening shaft 3, ensures that the tightening shaft 3 is not pulled out by the reverse elastic force of the column spring 2, ensures that the tightening shaft 3 only rotates without displacement during installation, and makes the tightening shaft 3 drive the pressing block 7 to slide in the pressing block guide groove 17 of the wire clamping base 1 during rotation.

[0041] The fixed screw 5 is screwed into the fixed screw threaded hole 19 of the wire clamping base 1. The fixed screw 5 is used for locking and fixing the high-voltage lead. The high-voltage lead is screwed into the lead threaded hole 14 of the wire clamping base 1, and after being fastened, the end of the high-voltage lead is tightly fixed by the fixed screw 5 in the fixed screw threaded hole 19,

[0042] The high-voltage drainage wire clamp of the present application can be equipped with a puncture needle 6 as needed, two puncture needle mounting holes 13 are formed on the inner side groove wall of the wire clamping groove 15 of the wire clamping base 1, and the puncture needle 6 is mounted on the puncture needle mounting hole 13, which can be used for non-stripped wiring of the insulated wire. If the puncture method is not used or the bare wire is used, the puncture needle 6 can not be installed.

[0043] Please refer to Figure 8 、 Figure 9 、 Figure 10 and Figure 11 , the embodiment of the present application is a special live installation tool for high-voltage drainage wire clamp, which comprises a wire clamp support rod 9, a ratchet sleeve wrench 10 and a wrench operating rod 20.

[0044] The wire clamp support rod 9 comprises an F-shaped wire clamp adapter block 91, a sleeve left support plate 92, a sleeve right support plate 93, a support base 94 and an insulating support rod 95, the F-shaped wire clamp adapter block 92, the sleeve left support plate 92 and the sleeve right support plate 93 are sequentially arranged from left to right at the top end of the support base 94, and the bottom end of the support base 94 is fixed at the top end of the insulating support rod 95; the F-shaped wire clamp adapter block 92 comprises a front F-shaped plate, a rear F-shaped plate and a right U-shaped plate, and the right U-shaped plate is blocked at the right end opening of the front F-shaped plate and the rear F-shaped plate; sleeve mounting holes are formed on the sleeve left support plate 92 and the sleeve right support plate 93 respectively.

[0045] The ratchet sleeve wrench 10 comprises an insulating handle 102, a ratchet sleeve head 101 and a wrench operating circular ring 103, the insulating handle 102 is in a hollow cylindrical shape, one end of the insulating handle 102 is connected with the ratchet sleeve head 101 through an elastic cylindrical pin 104, and the other end of the insulating handle 102 is connected with the wrench operating circular ring 103 through an elastic cylindrical pin 104.

[0046] The wrench operating rod 20 comprises an operating base 203, an insulating operating rod 204, a U-shaped bracket 202 and a wrench cylindrical pin 201, the operating base 203 is fixed at the top end of the insulating operating rod 204, the bottom end of the U-shaped bracket 202 is fixed at the top end of the operating base 203, and the two ends of the wrench cylindrical pin 201 are connected with the two ends of the U-shaped bracket 202 one by one.

[0047] The wire clamp support rod 9 and the wrench operating rod 20 are oppositely arranged, and the wire clamp support rod 9 and the wrench operating rod 20 are connected through the ratchet sleeve wrench 10, specifically, the two ends of the ratchet sleeve head 101 are fitted into the sleeve mounting holes on the sleeve left support plate 92 and the sleeve right support plate 93 one by one; the wrench operating circular ring 103 is located in the U-shaped bracket 202 and is sleeved on the wrench cylindrical pin 201. By pulling the insulating operating rod 204 up and down, the ratchet sleeve head 101 can be rotated.

[0048] The special live-line installation tool of the high-voltage current-carrying line clamp is integrated and cannot be temporarily disassembled in actual use, and the insulating support rod 95 and the insulating operating rod 204 are respectively provided with a telescopic rod with adjustable length or a multi-section rod which can be spliced in multiple sections, so that the length can be adjusted according to actual use.

[0049] Please refer to Figure 12 The high-voltage current-carrying line clamp and the special live-line installation tool thereof are used as follows: first, the high-voltage lead is screwed into the lead threaded hole 14 of the wire clamping base 1, and then the fixed screw 5 in the fixed screw threaded hole 19 is screwed tightly after fastening; then the installation tool engaging blocks 11 on the front and rear sides of the wire clamping base 1 of the high-voltage current-carrying line clamp are inserted into the front and rear F-shaped plates of the F-shaped clamp engaging block 91 one by one, and the hexagonal head of the tightening shaft 3 of the high-voltage current-carrying line clamp 1 is sleeved into the ratchet sleeve head 101 through the right U-shaped plate of the F-shaped clamp engaging block 91.

[0050] The special live-line installation tool is sleeved through the above cooperation, and the high-voltage current-carrying line clamp is hung into the overhead conductor through the wire clamping groove 15 by the insulating support rod 95, and then the ratchet sleeve head 101 is rotated to tighten the shaft 3 by pulling the insulating operating rod 204 up and down. During the rotation of the tightening shaft 3, the pressing block 9 is tightened, and finally the overhead conductor is fastened in the wire clamping groove 15 of the wire clamping base 1 and the wire pressing groove 74 of the pressing block 7, and the puncture needle 6 is inserted into the insulating layer of the insulating conductor.

[0051] When it is obviously felt that the insulating operating rod 204 cannot be pulled up and down, the high-voltage current-carrying line clamp is tightened in place, and the live-line installation tool can be withdrawn horizontally.

[0052] As described above, the high-voltage current-carrying line clamp and the special live-line installation tool thereof change the current high-voltage current-carrying line clamp which is mostly vertically tightened by the bottom pull ring, adopt horizontal tightening, match the special live-line installation tool, have the characteristics of convenient hanging into the wire, difficult falling of the tightened wire, and easy and effortless wire pressing and puncturing, and the installation position is accurate when the installation tool is used, and the line is less affected during the tightening of the high-voltage current-carrying line clamp.

[0053] The present application provides a reliable product basis and tool basis for the pole ground potential installation and access system of the new lightning protection device, can meet the non-power-off installation of the lightning protection device, reduces the power grid operation mode adjustment, equipment state conversion operation and other work, and can greatly improve the actual situation that the lightning protection measures of the key line are less due to the inability to stop power.

[0054] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as limitation to the present application, as long as the changes and variations of the above embodiments are within the spirit and scope of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A high voltage drain line clip, characterized by, The utility model relates to a wire clamping base, compression block, tightening pivot, column spring, tightening pivot cap, limit lock pin and fixing screw, wherein: The lower part of the wire clamping base is provided with a wire clamping groove; the front and rear sides of the upper part of the wire clamping base are respectively provided with mounting tool engaging blocks, and the front side of the wire clamping base is longitudinally provided with a limit lock pin hole; the left side of the wire clamping base is provided with a compression block groove, and the inner side groove wall of the compression block groove is transversely provided with a compression block guide groove; the upper part of the right side of the wire clamping base is provided with a transversely arranged tightening pivot through hole, the limit lock pin hole is communicated with the tightening pivot through hole; the lower part of the right side of the wire clamping base is provided with a transversely arranged fixing screw thread hole; the bottom end of the wire clamping base is provided with a vertically arranged lead thread hole, and the lead thread hole is communicated with the fixing screw thread hole; The compression block comprises a compression block tightening column and a wire pressing groove arranged at the bottom end of the compression block, the compression block tightening column is transversely arranged, the outer side wall of the compression block tightening column is transversely provided with a compression block guide strip, and the middle part of the compression block tightening column is transversely provided with a left-right through tightening pivot thread hole; the compression block is arranged in the compression block groove, the compression block guide strip is inserted into the compression block guide groove, and the tightening pivot thread hole is communicated with the tightening pivot through hole; One end of the tightening pivot is sequentially penetrated through the column spring, the tightening pivot through hole of the wire clamping base and the tightening pivot thread hole of the compression block, and is connected with the tightening pivot cap; the other end of the tightening pivot is a hexagonal head; The column spring is located between the hexagonal head of the tightening pivot and the right side of the wire clamping base, and the column spring is in a compressed state; The limit lock pin is inserted into the limit lock pin hole of the wire clamping base and clamps the tightening pivot; The fixing screw is screwed into the fixing screw thread hole of the wire clamping base, The inner side groove wall of the wire clamping groove of the wire clamping base is provided with a puncture needle mounting hole, and the puncture needle is connected to the puncture needle mounting hole, The high-voltage lead is threadedly connected to the lead thread hole of the wire clamping base, and the end of the high-voltage lead is tightly fixed by the end of the fixing screw.

2. A special live installation tool for a high voltage current lead line clamp as claimed in claim 1, characterized in that, The utility model relates to a wire clamp support rod, a ratchet sleeve wrench and a wrench operating rod, wherein: The wire clamp support rod comprises an F-shaped wire clamp engaging block, a sleeve left support plate, a sleeve right support plate, a support base and an insulating support rod, the F-shaped wire clamp engaging block, the sleeve left support plate and the sleeve right support plate are sequentially arranged at the top end of the support base from left to right, and the bottom end of the support base is fixed to the top end of the insulating support rod; the F-shaped wire clamp engaging block comprises a front side F-shaped plate, a rear side F-shaped plate and a right side U-shaped plate, and the right side U-shaped plate is sealed to the right end opening of the front side F-shaped plate and the rear side F-shaped plate; sleeve mounting holes are respectively arranged on the sleeve left support plate and the sleeve right support plate; The ratchet sleeve wrench comprises an insulating handle, a ratchet sleeve head and a wrench operating ring, the insulating handle is in a hollow cylindrical shape, one end of the insulating handle is connected to the ratchet sleeve head through an elastic cylindrical pin, and the other end of the insulating handle is connected to the wrench operating ring through an elastic cylindrical pin; The wrench operating lever comprises an operating base, an insulating operating lever, a U-shaped support and a wrench cylindrical pin, the operating base is fixed at the top end of the insulating operating lever, the bottom end of the U-shaped support is fixed at the top end of the operating base, and the two ends of the wrench cylindrical pin are connected with the two ends of the U-shaped support correspondingly; The wire clamp supporting rod and the wrench operating lever are oppositely arranged, the two ends of the ratchet sleeve head are correspondingly sleeved into the sleeve mounting holes on the sleeve left supporting plate and the sleeve right supporting plate, and the wrench operating ring is located in the U-shaped support and is sleeved on the wrench cylindrical pin.

3. A special live-line installation tool for high-voltage drain wire clamps according to claim 2, characterized in that The insulating supporting rod and the insulating operating lever are respectively made of a telescopic rod with adjustable length or a multi-section rod which can be spliced.

4. A special live-line installation tool for high-voltage drain wire clamps according to claim 2, characterized in that, The mounting tool engaging blocks on the front side and the rear side of the wire clamping base of the high-voltage drainage wire clamp are correspondingly inserted into the front side F-shaped plate and the rear side F-shaped plate of the F-shaped wire clamp engaging block, and the hexagonal head of the tightening rotating shaft of the high-voltage drainage wire clamp is sleeved into the ratchet sleeve head after passing through the right side U-shaped plate of the F-shaped wire clamp engaging block.

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