A wire clamp for anti-fracture copper and aluminum equipment

Abstract

The present invention relates to the field of electrical connection, and in particular to a wire clamp for anti-fracture copper-aluminum equipment, comprising a shell, a top cover sealed and clamped on the top of the shell, a support frame fixedly connected to the bottom of the inner side of the shell, and a tightening unit, a tightening unit mirror-distributedly installed on the top of the top cover, and an upper clamping unit installed on the bottom of the tightening unit. When installing the wire, the aluminum slide and the copper slide squeeze the wire terminal, and the first conductive aluminum block, the first conductive copper block, the third conductive aluminum block and the third conductive copper block squeeze the conductive metal wire of the wire, so that the device can clamp the conductive ends of wires of different styles, thereby improving the applicability of the device, and when the rotating twist shell rotates, the soft rubber block will generate different sizes of torque on the blocking block according to the position of the blocking block, so that the blocking block can control the downward pressure of the first conductive aluminum block through the support tube, the mounting plate and the threaded column, thereby avoiding the conductive end of the wire from being squeezed and deformed, resulting in poor conductivity.

Description

Technical Field

[0001] The invention relates to the field of electrical connection, and in particular to a wire clamp for anti-fracture copper-aluminum equipment. Background Art

[0002] The copper-aluminum equipment wire clamp is a conductive device composed of two metals, copper and aluminum, used to connect two or more wires. The existing technology is two clamping metal plates and several bolt and nut groups. The installation of two or more wires is achieved by tightly fitting the wires to the metal plates.

[0003] In the prior art, when installing wires, the wires are clamped by metal plates or the wire terminals are squeezed by nuts for fixing. Since the diameters and mechanical strengths of different wires are different, the connection method of clamping the wires by metal plates is not stable. If the extrusion pressure on the wires is insufficient, long-term use will cause the wires to detach. If the extrusion pressure on the wires is too large, the wires will deform and disperse, making the conductive effect of the wires worse. The connection method of the wire terminal with nuts squeezing the wire has strict requirements on the torque of the nuts. If the extrusion pressure on the terminal is too small, the terminal and the metal plate will be in virtual connection. If the extrusion pressure on the terminal is too large, the outer protective layer of the terminal will be scratched, and the conductive effect of the wire will also be worse. When the metal plate is conducting electricity, the current heating problem will cause the metal plate to heat up and deform when it is acted upon by external force. When the metal plate is exposed to the air, metal oxides will be produced or electrochemical corrosion will occur, which will seriously reduce the conductive effect of the metal plate and generate more heat when the metal plate is energized, forming a vicious circle. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the background technology, the technical problem is to provide a wire clamp for anti-fracture copper and aluminum equipment with a sealing effect.

[0005] The technical solution of the present invention is: a wire clamp for anti-fracture copper and aluminum equipment, comprising a shell, a top cover sealed and clamped on the top of the shell, a support frame fixedly connected to the bottom of the inner side of the shell, and a tightening unit, the tightening unit is mirror-distributedly installed on the top of the top cover, and an upper clamping unit is installed on the bottom of the tightening unit;

[0006] The tightening unit includes a threaded column, a circular through hole is opened on the top of the top cover in a mirror-image distribution, a threaded column is rotatably connected in the circular through hole, a mounting plate is fixedly connected to the top of the threaded column, a support tube is fixedly connected to the top of the mounting plate, a rotating twist shell is rotatably connected to the top of the support tube, a plurality of rectangular slide grooves are circumferentially opened in the support tube, blocking blocks are slidably connected in the plurality of rectangular slide grooves, a plurality of soft rubber blocks are circumferentially fixedly connected in the rotating twist shell, and the plurality of soft rubber blocks are in contact with the plurality of blocking blocks;

[0007] The upper clamping unit includes a first conductive aluminum block, the outer wall of the threaded column is threadedly connected to the first conductive aluminum block, the bottom of the top cover is fixedly connected to an insulating plate, the first conductive aluminum block is in sliding contact with the insulating plate, a first annular blind hole is opened at the bottom of the first conductive aluminum block, an aluminum slide cylinder is slidably connected in the first annular blind hole, and a first insulating spring is connected between the aluminum slide cylinder and the first annular blind hole.

[0008] Preferably, the tightening unit further comprises a connecting rod, one side of the blocking block is rotatably connected with the connecting rod in a mirror-image distribution up and down, and one end of a plurality of upper connecting rods and a plurality of lower connecting rods are rotatably connected with a threaded bracket.

[0009] Preferably, the tightening unit further includes a bidirectional threaded rod, the two threaded brackets are commonly threadedly connected to the bidirectional threaded rod, the bidirectional threaded rod penetrates the rotating twist shell and is rotationally connected to the rotating twist shell, and a nut is fixed to the top of the bidirectional threaded rod.

[0010] Preferably, the tightening unit further includes a damping ring, the outer wall of the mounting plate is fixedly connected with the damping ring, and the top of the damping ring is in contact with the rotating torsion shell.

[0011] Preferably, the upper clamping unit also includes a first conductive copper block, a first conductive copper block is fixedly connected to one side of the first conductive aluminum block, a second annular blind hole is opened at the bottom of the first conductive copper block, a copper slide cylinder is slidably connected in the second annular blind hole, and a second insulating spring is connected between the copper slide cylinder and the second annular blind hole.

[0012] Preferably, a lower clamping unit is also included. The lower clamping unit is installed on the top of the support frame, and the lower clamping unit includes a second conductive aluminum block. The second conductive aluminum block is fixedly connected to the top of the support frame, a second conductive copper block is fixedly connected to one side of the second conductive aluminum block, third conductive aluminum blocks are fixedly connected to the front and rear sides of the second conductive aluminum block, the third conductive aluminum block is in contact with the first conductive aluminum block, third conductive copper blocks are fixedly connected to the front and rear sides of the second conductive copper block, the third conductive copper block is in contact with the first conductive copper block, and the third conductive aluminum block is fixedly connected to the third conductive copper block.

[0013] Preferably, the lower clamping unit also includes an aluminum slide column and a copper slide column, a first circular blind hole is opened on the top of the third conductive aluminum block, an aluminum slide column is slidably connected in the first circular blind hole, a third insulating spring is connected between the first circular blind hole and the aluminum slide column, a second circular blind hole is opened on the top of the third conductive copper block, a copper slide column is slidably connected in the second circular blind hole, and a fourth insulating spring is connected between the second circular blind hole and the copper slide column.

[0014] Preferably, a sealing unit is also included. Two sealing units are installed on the front and rear sides of the shell. The sealing unit includes a sliding cylinder. Two sliding cylinders are connected and fixedly connected on the front and rear sides of the shell. A fixing unit is installed in the sliding cylinder. A spiral slip ring is slidably connected in the sliding cylinder. An insulating soft sleeve is fixedly connected to one end of the spiral slip ring. The sealing unit is used to seal and protect the inside of the shell.

[0015] Preferably, the fixing unit includes a rotating cylinder, the sliding cylinder is rotatably connected with the rotating cylinder, the rotating cylinder is threadedly connected to the spiral slip ring, and one end of the rotating cylinder is fixedly connected to the insulating soft sleeve, and the fixing unit is used to fix the wire in the shell.

[0016] Preferably, the fixing unit also includes a conical arc thread plate and a sealing ring. A plurality of conical arc thread plates are circumferentially distributed and fixedly connected to one end of the rotating cylinder. The plurality of conical arc thread plates are commonly threadedly connected to a threaded pressing cylinder. A sealing ring is connected between the threaded pressing cylinder and the rotating cylinder.

[0017] The beneficial effects are as follows: 1. By squeezing the wire terminal by the aluminum slide and the copper slide when installing the wire, and squeezing the conductive metal wire by the first conductive aluminum block, the first conductive copper block, the third conductive aluminum block and the third conductive copper block, the device can clamp conductive ends of wires of different styles, thereby improving the applicability of the device. When the rotating torsion shell rotates, the soft rubber block will generate different sizes of torque on the blocking block according to the position of the blocking block, so that the blocking block can control the downward pressure of the first conductive aluminum block through the support tube, the mounting plate and the threaded column, thereby avoiding the conductive end of the wire from being squeezed and deformed, resulting in poor conductivity.

[0018] 2. The conical arc thread plate is deformed by squeezing the thread pressing cylinder so that the conical arc thread plate clamps the wire, thereby avoiding the problem of the first conductive aluminum block, the first conductive copper block, the third conductive aluminum block and the third conductive copper block being deformed by heating when clamping the wire, thereby improving the durability of the device.

[0019] 3. The wrinkles produced when the insulating soft sleeve is twisted and deformed make sealed contact with the outer wall of the wire, or the wrinkles are in contact with each other, and the top cover is sealed and clamped to the shell to isolate the inside of the shell from the outside, preventing external air from contacting the upper clamping unit and the lower clamping unit to cause oxidation and electrochemical corrosion, thereby improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 A half-section schematic diagram of a housing of the present invention;

[0022] Figure 3 is a partial cross-sectional schematic diagram of the first conductive aluminum block of the present invention;

[0023] Figure 4 is a partial cross-sectional schematic diagram of the third conductive aluminum block of the present invention;

[0024] Figure 5 A half-section schematic diagram of a threaded column of the present invention;

[0025] Figure 6It is a schematic diagram of the explosion structure of the tightening unit of the present invention;

[0026] Figure 7 A half-section schematic diagram of a sliding cylinder of the present invention;

[0027] Figure 8 It is a schematic diagram of the explosion structure of the sealing unit and the fixing unit of the present invention.

[0028] Parts names and serial numbers in the figure: 1_shell, 101_support frame, 2_top cover, 3_sealing unit, 301_sliding cylinder, 302_spiral slip ring, 303_insulating soft sleeve, 4_fixing unit, 401_rotating cylinder, 402_cone arc thread plate, 403_sealing ring, 404_thread pressing cylinder, 5_tightening unit, 501_thread column, 502_mounting sheet, 503_support cylinder, 504_rotating twist shell, 5041_soft rubber block, 505_blocking block , 506_connecting rod, 507_threaded bracket, 508_bidirectional threaded rod, 509_nut, 510_damping ring, 6_upper clamping unit, 601_first conductive aluminum block, 602_aluminum slide cylinder, 603_first conductive copper block, 604_copper slide cylinder, 7_lower clamping unit, 701_second conductive aluminum block, 702_second conductive copper block, 703_third conductive aluminum block, 704_aluminum slide column, 705_third conductive copper block, 706_copper slide column. DETAILED DESCRIPTION

[0029] The preferred technical solutions of the present invention are described in detail below with reference to the accompanying drawings. Example

[0030] A wire clamp for anti-fracture copper and aluminum equipment, such as Figure 1-Figure 8 As shown, it includes a shell 1, a top cover 2 is sealed and clamped on the top of the shell 1, a support frame 101 is fixedly connected to the bottom of the inner side of the shell 1, and also includes a tightening unit 5, the tightening unit 5 is mirror-mounted on the top of the top cover 2, and an upper clamping unit 6 is installed on the bottom of the tightening unit 5;

[0031] The tightening unit 5 includes a threaded column 501, a circular through hole is provided on the top of the top cover 2 in a mirror-image distribution, the threaded column 501 is rotatably connected in the circular through hole, a mounting plate 502 is fixedly connected to the top of the threaded column 501, a support cylinder 503 is fixedly connected to the top of the mounting plate 502, a rotating twist shell 504 is rotatably connected to the top of the support cylinder 503, a plurality of rectangular slide grooves are circumferentially distributed in the support cylinder 503, a plurality of blocking blocks 505 are slidably connected in the plurality of rectangular slide grooves, a plurality of soft rubber blocks 5041 are circumferentially distributed and fixed in the rotating twist shell 504, one side of the soft rubber block 5041 and the blocking block 505 are both arc-shaped surfaces, and a plurality of soft rubber blocks 5041 are in contact with a plurality of blocking blocks 505;

[0032] The upper clamping unit 6 includes a first conductive aluminum block 601, the outer wall of the threaded column 501 is threadedly connected to the first conductive aluminum block 601, an insulating plate is fixedly connected to the bottom of the top cover 2, the first conductive aluminum block 601 is in sliding contact with the insulating plate, a first annular blind hole is opened at the bottom of the first conductive aluminum block 601, the inner cylindrical diameter of the first annular blind hole is larger than the inner diameter of the wire terminal, an aluminum slide 602 is slidably connected in the first annular blind hole, and a first insulating spring is connected between the aluminum slide 602 and the first annular blind hole.

[0033] The tightening unit 5 also includes a connecting rod 506, and one side of the blocking block 505 is rotatably connected to the connecting rod 506 in an upper and lower mirror-distributed manner. One end of several upper connecting rods 506 and several lower connecting rods 506 are rotatably connected to threaded brackets 507, and the threads on the inner walls of the two threaded brackets 507 have opposite rotation directions.

[0034] The tightening unit 5 also includes a bidirectional threaded rod 508, and two threaded brackets 507 are commonly threadedly connected with the bidirectional threaded rod 508, the bidirectional threaded rod 508 penetrates the rotating twist shell 504, and is rotatably connected to the rotating twist shell 504, and a nut 509 is fixed to the top of the bidirectional threaded rod 508. A hexagonal groove is provided on the top of the nut 509, and the top of the nut 509 is lower than the top of the rotating twist shell 504 to prevent the nut 509 from being accidentally touched.

[0035] The tightening unit 5 further includes a damping ring 510 . The outer wall of the mounting plate 502 is fixedly connected with the damping ring 510 . The top of the damping ring 510 contacts the rotating torsion shell 504 to provide friction for the rotating torsion shell 504 .

[0036] The upper clamping unit 6 also includes a first conductive copper block 603, and the first conductive copper block 603 is fixedly connected to one side of the first conductive aluminum block 601. A second annular blind hole is opened at the bottom of the first conductive copper block 603. The inner cylindrical diameter of the second annular blind hole is larger than the inner diameter of the wire terminal. A copper slide cylinder 604 is slidably connected in the second annular blind hole, and a second insulating spring is connected between the copper slide cylinder 604 and the second annular blind hole.

[0037] It also includes a lower clamping unit 7. The lower clamping unit 7 is installed on the top of the support frame 101. The lower clamping unit 7 includes a second conductive aluminum block 701. The second conductive aluminum block 701 is fixedly connected to the top of the support frame 101. A second conductive copper block 702 is fixedly connected to one side of the second conductive aluminum block 701. Third conductive aluminum blocks 703 are fixedly connected to the front and rear sides of the second conductive aluminum block 701. The top height of the third conductive aluminum block 703 is lower than that of the second conductive aluminum block 701. The third conductive aluminum block 703 contacts the first conductive aluminum block 601. Third conductive copper blocks 705 are fixedly connected to the front and rear sides of the second conductive copper block 702. The top height of the third conductive copper block 705 is lower than that of the second conductive copper block 702. The third conductive copper block 705 contacts the first conductive copper block 603. The third conductive aluminum block 703 is fixedly connected to the third conductive copper block 705.

[0038] The lower clamping unit 7 also includes an aluminum slide column 704 and a copper slide column 706. A first circular blind hole is opened on the top of the third conductive aluminum block 703. The aluminum slide column 704 is slidably connected in the first circular blind hole. The diameter of the aluminum slide column 704 is smaller than the inner diameter of the wire terminal. A third insulating spring is connected between the first circular blind hole and the aluminum slide column 704. A second circular blind hole is opened on the top of the third conductive copper block 705. The copper slide column 706 is slidably connected in the second circular blind hole. The diameter of the copper slide column 706 is smaller than the inner diameter of the wire terminal. A fourth insulating spring is connected between the second circular blind hole and the copper slide column 706.

[0039] It also includes a sealing unit 3. Two sealing units 3 are installed on the front and rear sides of the shell 1. The sealing unit 3 includes a sliding cylinder 301. The front and rear sides of the shell 1 are connected and fixed with two sliding cylinders 301. A fixing unit 4 is installed in the sliding cylinder 301. A spiral slip ring 302 is slidably connected in the sliding cylinder 301. An insulating soft sleeve 303 is fixed at one end of the spiral slip ring 302. The insulating soft sleeve 303 has good toughness. The sealing unit 3 is used for sealing and protecting the inside of the shell 1.

[0040] The fixing unit 4 includes a rotating cylinder 401, which is rotatably connected inside the sliding cylinder 301. The rotating cylinder 401 is threadedly connected to the spiral slip ring 302. There is a large damping between the rotating cylinder 401 and the spiral slip ring 302. The damping between the rotating cylinder 401 and the spiral slip ring 302 is used to clamp the rotating cylinder 401 to prevent the rotating cylinder 401 from being accidentally touched and rotating. One end of the rotating cylinder 401 is fixedly connected to the insulating soft sleeve 303. The fixing unit 4 is used to fix the wires in the shell 1.

[0041] The fixing unit 4 also includes a conical arc thread plate 402 and a sealing ring 403. A plurality of conical arc thread plates 402 are circumferentially distributed and fixedly connected to one end of the rotating cylinder 401. The conical arc thread plates 402 are made of insulating tough material. A plurality of conical arc thread plates 402 are commonly threadedly connected to a threaded pressing cylinder 404. A sealing ring 403 is connected between the threaded pressing cylinder 404 and the rotating cylinder 401. The sealing ring 403 is used to buffer the pressure between the threaded pressing cylinder 404 and the rotating cylinder 401.

[0042] In the initial state, the shell 1 is separated from the top cover 2, and the threaded pressing cylinder 404 is located on the side of the conical arc threaded plate 402 away from the shell 1. The staff passes the wire through the threaded pressing cylinder 404 and extends it into the shell 1 through the rotating cylinder 401. If the conductive end of the wire is a conductive metal wire, the conductive metal wire of the wire is pressed on the surface of the depression of the third conductive aluminum block 703 or the third conductive copper block 705. If the conductive end of the wire is a terminal, the terminal is sleeved on the aluminum slide column 704 or the copper slide column 706, and the aluminum wire is connected to the third conductive aluminum block 703 or the aluminum slide column 704, and the copper wire is connected to the third conductive copper block 705 or the copper slide column 706, so as to prevent the local resistance of the wire surface from being too large due to the difference between the contact material and the wire itself, thereby avoiding the contact surface of the wire from being damaged when power is turned on. In severe heat conditions, the staff rotates the thread pressing cylinder 404 to move the thread pressing cylinder 404 along the thread of the outer wall of the conical arc thread plate 402 close to the shell 1, so that the inner wall of the thread pressing cylinder 404 squeezes the conical arc thread plate 402, and the conical arc thread plate 402 is deformed, bends toward the outer wall of the wire and squeezes the wire, and the front and rear sides of the conical arc thread plate 402 are respectively squeezed by the wire and the rotating cylinder 401, resulting in a smaller bending angle on the front and rear sides of the conical arc thread plate 402, and the middle part of the conical arc thread plate 402 has no support, resulting in a larger bending angle, so that the wire is clamped and limited by the conical arc thread plate 402, and the positioning force during the installation of the wire is changed from the terminal to the outer wall of the wire, avoiding the problem of the lower clamping unit 7 and the upper clamping unit 6 being pulled and deformed by the wire due to rising temperature after the wire is fixed.

[0043] When the threaded pressing cylinder 404 rotates, if the torque of the rotation is large, it will be clamped with the conical arc threaded plate 402, and the conical arc threaded plate 402 and the threaded pressing cylinder 404 will rotate synchronously, thereby driving the rotating cylinder 401 to rotate on the sliding cylinder 301. The rotation of the rotating cylinder 401 will push the spiral slip ring 302 to slide close to the shell 1. In this process, the insulating soft sleeve 303 will be twisted by the rotating cylinder 401 and the spiral slip ring 302, so that wrinkles appear on the surface of the insulating soft sleeve 303. The wrinkles are spiral, and the wrinkles will twist with the twisting of the insulating soft sleeve 303. The folds will move closer to each other. If the wire has passed through the rotating cylinder 401, the folds will seal and contact the wire when they move closer, and widen to both sides along the direction of the wire until the torque of the rotating cylinder 401 is insufficient for the insulating soft sleeve 303 to continue to deform. If there is no wire in the rotating cylinder 401, the folds will gradually move closer and seal and contact each other, so that the insulating soft sleeve 303 is deformed and the rotating cylinder 401 is sealed, preventing air from entering the shell 1 through the rotating cylinder 401, thereby avoiding oxidation and corrosion of the lower clamping unit 7 and the upper clamping unit 6 by air.

[0044] The top cover 2 is clamped on the shell 1 so that the shell 1 and the top cover 2 are sealed. It is worth noting that in the initial state, the top of the first conductive aluminum block 601 contacts the top cover 2, and the rotating twist shell 504 is rotated to make the soft rubber block 5041 in the rotating twist shell 504 contact and squeeze the blocking block 505. The blocking block 505 rotates and drives the mounting plate 502 to rotate through the support tube 503. The mounting plate 502 rotates and drives the upper clamping unit 6 to move downward through the threaded column 501, so that the upper clamping unit 6 squeezes the conductive end of the wire.

[0045] The specific process of the upper clamping unit 6 moving downward is as follows: when the threaded column 501 rotates, it drives the first conductive aluminum block 601 to move downward. If the conductive end of the wire is a conductive metal wire, the first conductive aluminum block 601 moves downward to squeeze the conductive metal wire of the wire above the third conductive aluminum block 703. At the same time, the downward movement of the first conductive aluminum block 601 will drive the first conductive copper block 603 to move synchronously, so that the first conductive copper block 603 squeezes the conductive metal wire of the wire above the third conductive copper block 705. If the conductive end of the wire is a wiring terminal, the first conductive aluminum block 601 moves through the first insulating spring to drive the aluminum slide 602 to move synchronously. When the aluminum slide 602 contacts the wiring terminal of the wire, the aluminum slide 602 no longer moves and the first insulating spring is squeezed by the first conductive aluminum block 601. The aluminum slide 602 continues to squeeze the wiring terminal to prevent the wiring terminal from being virtual-connected with the third conductive aluminum block 703. The aluminum slide column 704 contacts the first conductive aluminum block 601 will move downward synchronously and squeeze the third insulating spring to prevent the first conductive aluminum block 601 from being squeezed and damaged. At the same time, the downward movement of the first conductive aluminum block 601 will drive the first conductive copper block 603 to move synchronously. The movement of the first conductive copper block 603 drives the copper slide 604 to move synchronously through the second insulating spring. When the copper slide 604 contacts the wiring terminal of the wire, the copper slide 604 no longer moves and the second insulating spring is squeezed by the first conductive copper block 603. The copper slide 604 continues to squeeze the wiring terminal to prevent the wiring terminal from being virtual-connected with the third conductive copper block 705. The copper slide 706 will move downward synchronously when contacting the first conductive copper block 603 and squeeze the fourth insulating spring to prevent the first conductive copper block 603 from being squeezed and damaged. The extrusion and fixing method of the aluminum slide 602 and the copper slide 604 to the wire wiring terminal avoids scratches on the surface of the wire wiring terminal caused by tightening the nut and realizes the clamping and positioning of the conductive end of the wire.

[0046] After the upper clamping unit 6 clamps the conductive end of the wire, the rotating twist shell 504 can no longer control the upper clamping unit 6 to move downward, and the torque of the threaded column 501 increases. At this time, the rotating twist shell 504 continues to be rotated, and the soft rubber block 5041 squeezes the blocking block 505 to deform itself. When the soft rubber block 5041 deforms too much, it will bypass the contacting blocking block 505, making the rotating twist shell 504 in an idling state, and there will be a feeling of continuing to twist the screw thread after it is twisted, and the soft rubber block 5041 will knock on the next blocking block 505 on the motion trajectory. 05, and vibration is generated, indicating that the upper clamping unit 6 has completed clamping the conductive end of the wire, and there is no need to twist the rotating twist shell 504, and the vibration generated is transmitted to the staff's hand through the rotating twist shell 504. After sensing the vibration, the staff stops tightening the tightening unit 5, thereby completing the installation of the wire and avoiding the problem of deformation caused by excessive pressure on the conductive end of the wire when the first conductive aluminum block 601 and the first conductive copper block 603 fix the conductive end of the wire, thereby avoiding the problem of poor contact and heating caused by deformation of the conductive end of the wire.

[0047] If there is a specific pressure requirement for the wire installation, the staff rotates the nut 509 with a hexagonal screwdriver, and the rotation of the nut 509 drives the bidirectional threaded rod 508 to rotate. The rotation of the bidirectional threaded rod 508 causes the upper and lower threaded brackets 507 to move closer to or away from each other. If the two threaded brackets 507 are close to each other, the two threaded brackets 507 move through the connecting rod 506 to drive the blocking block 505 to move, so that the blocking block 505 is close to the soft rubber block 5041, so as to increase the torque required for the rotating torsion shell 504 when the soft rubber block 5041 bypasses the blocking block 505. The rotating torsion shell 504 rotates through the soft rubber block 5041 to drive the blocking block 505 to rotate synchronously, and the blocking block 505 rotates through the support tube 503 to drive the mounting plate 502 to rotate synchronously. The mounting plate 502 rotates through the threaded column 501 to drive the first conductive aluminum block 601 to move downward, and the first conductive aluminum block 601 moves downward to drive the first conductive copper block 603 to move synchronously, so that the first conductive aluminum block 601 and the first conductive copper block 603 have a greater pressure on the wire when they move downward. If the two threaded brackets 507 move away from each other, the two threaded brackets 507 move through the connecting rod 506 to drive the blocking block 505 to move, so that the blocking block 505 is away from the soft rubber block 5041, so as to reduce the torque required for the rotating torsion shell 504 when the soft rubber block 5041 bypasses the blocking block 505. The rotating torsion shell 504 rotates through the soft rubber block 5041 to drive the blocking block 505 to rotate synchronously, and the blocking block 505 rotates through the support tube 503. The mounting plate 502 is driven to rotate synchronously, and the mounting plate 502 rotates to drive the first conductive aluminum block 601 to move downward through the threaded column 501. When the first conductive aluminum block 601 moves downward, it drives the first conductive copper block 603 to move synchronously, so that the first conductive aluminum block 601 and the first conductive copper block 603 have less pressure on the wire when they move downward, and the pressure adjustment when the wire is installed is completed. It is worth noting that when the nut 509 is rotated, the nut 509 will drive the two threaded brackets 507 to rotate through the bidirectional threaded rod 508, and the two threaded brackets 507 will drive the blocking block 505 to rotate through the connecting rod 506, thereby causing the blocking block 505 to control the rotation of the mounting plate 502 and the threaded column 501 through the support tube 503. In this case The damping ring 510 is slightly deformed by being squeezed, and the rotating twist shell 504 is now engaged with the damping ring 510. At the same time, the friction between the rotating twist shell 504 and the damping ring 510 increases, thereby limiting the rotation of the damping ring 510. The damping ring 510 is limited and further limits the support tube 503 through the mounting plate 502. At this time, the nut 509 is turned. The nut 509 cannot drive the support tube 503 to rotate through the blocking block 505, but adjusts the position of the two threaded brackets 507 through the bidirectional threaded rod 508, thereby realizing the adjustment of the pressure applied during the installation of the wire.

[0048] During later maintenance, the staff rotates the rotating twist shell 504 in the opposite direction, so that the soft rubber block 5041 in the rotating twist shell 504 contacts and squeezes the blocking block 505, and the blocking block 505 rotates in the opposite direction and drives the mounting plate 502 to rotate synchronously through the support tube 503. The mounting plate 502 rotates in the opposite direction and drives the upper clamping unit 6 to move upward and disengage from the conductive end of the wire through the threaded column 501. Then, the top cover 2 is removed to check the status of the upper clamping unit 6 and the lower clamping unit 7. After completing the maintenance inspection, the top cover 2 is installed back into the shell 1, and the above-mentioned action of the upper clamping unit 6 pressing the conductive end of the wire is re-executed to prevent the upper clamping unit 6 from moving and becoming loose when the top cover 2 is disassembled and assembled. The wire can be re-tightened without the need for subsequent pressure measurement and adjustment.

[0049] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A wire clamp for anti-fracture copper and aluminum equipment, comprising a housing (1), a top cover (2) being sealed and clamped at the top of the housing (1), and a support frame (101) being fixedly connected to the bottom of the inner side of the housing (1), characterized in that: It also includes a tightening unit (5), the tightening unit (5) being mounted on the top of the top cover (2) in a mirror-image arrangement, and an upper clamping unit (6) being mounted on the bottom of the tightening unit (5); The tightening unit (5) comprises a threaded column (501), a circular through hole is formed on the top of the top cover (2) in a mirror-image distribution, a threaded column (501) is rotatably connected to the circular through hole, a mounting plate (502) is fixedly connected to the top of the threaded column (501), a support tube (503) is fixedly connected to the top of the mounting plate (502), a rotating torsion shell (504) is rotatably connected to the top of the support tube (503), a plurality of rectangular slide grooves are formed in the circumferential direction of the support tube (503), a blocking block (505) is slidably connected to each of the plurality of rectangular slide grooves, a plurality of soft rubber blocks (5041) are fixedly connected to the circumferential direction of the rotating torsion shell (504), and the plurality of soft rubber blocks (5041) are in contact with the plurality of blocking blocks (505); The upper clamping unit (6) comprises a first conductive aluminum block (601), the outer wall of the threaded column (501) is threadedly connected to the first conductive aluminum block (601), the bottom of the top cover (2) is fixedly connected to an insulating plate, the first conductive aluminum block (601) is in sliding contact with the insulating plate, a first annular blind hole is provided at the bottom of the first conductive aluminum block (601), an aluminum slide cylinder (602) is slidably connected in the first annular blind hole, and a first insulating spring is connected between the aluminum slide cylinder (602) and the first annular blind hole; A connecting rod (506) is rotatably connected to one side of the blocking block (505) in a mirror-image distribution, and one end of the connecting rod (506) is rotatably connected to a threaded bracket (507); The threaded bracket (507) is threadedly connected with a bidirectional threaded rod (508).

2. A wire clamp for anti-fracture copper and aluminum equipment according to claim 1, characterized in that: The tightening unit (5) further comprises a nut (509); the bidirectional threaded rod (508) penetrates the rotating torsion shell (504) and is rotationally connected to the rotating torsion shell (504); and the nut (509) is fixedly connected to the top of the bidirectional threaded rod (508).

3. A wire clamp for anti-fracture copper and aluminum equipment according to claim 2, characterized in that: The tightening unit (5) further comprises a damping ring (510), the outer wall of the mounting plate (502) being fixedly connected with the damping ring (510), and the top of the damping ring (510) being in contact with the rotating torsion shell (504).

4. The anti-fracture copper-aluminum equipment wire clamp according to claim 1 is characterized in that: The upper clamping unit (6) further comprises a first conductive copper block (603), the first conductive copper block (603) being fixedly connected to one side of the first conductive aluminum block (601), a second annular blind hole being provided at the bottom of the first conductive copper block (603), a copper slide cylinder (604) being slidably connected in the second annular blind hole, and a second insulating spring being connected between the copper slide cylinder (604) and the second annular blind hole.

5. A wire clamp for anti-fracture copper and aluminum equipment according to claim 4, characterized in that: The invention also comprises a lower clamping unit (7), the lower clamping unit (7) being installed on the top of the support frame (101), the lower clamping unit (7) comprising a second conductive aluminum block (701), the second conductive aluminum block (701) being fixedly connected to the top of the support frame (101), a second conductive copper block (702) being fixedly connected to one side of the second conductive aluminum block (701), third conductive aluminum blocks (703) being fixedly connected to both the front and rear sides of the second conductive aluminum block (701), the third conductive aluminum block (703) being in contact with the first conductive aluminum block (601), third conductive copper blocks (705) being fixedly connected to both the front and rear sides of the second conductive copper block (702), the third conductive copper block (705) being in contact with the first conductive copper block (603), and the third conductive aluminum block (703) being fixedly connected to the third conductive copper block (705).

6. A wire clamp for anti-fracture copper and aluminum equipment according to claim 5, characterized in that: The lower clamping unit (7) further comprises an aluminum slide column (704) and a copper slide column (706); a first circular blind hole is formed on the top of the third conductive aluminum block (703); the aluminum slide column (704) is slidably connected in the first circular blind hole; a third insulating spring is connected between the first circular blind hole and the aluminum slide column (704); a second circular blind hole is formed on the top of the third conductive copper block (705); the copper slide column (706) is slidably connected in the second circular blind hole; and a fourth insulating spring is connected between the second circular blind hole and the copper slide column (706).

7. The anti-fracture copper-aluminum equipment wire clamp according to claim 1, characterized in that: The housing (1) further comprises a sealing unit (3), wherein two sealing units (3) are installed on both the front and rear sides of the housing (1), the sealing unit (3) comprises a sliding cylinder (301), the two sliding cylinders (301) are connected and fixedly connected to both the front and rear sides of the housing (1), a fixing unit (4) is installed in the sliding cylinder (301), a spiral slip ring (302) is slidably connected in the sliding cylinder (301), an insulating soft sleeve (303) is fixedly connected to one end of the spiral slip ring (302), and the sealing unit (3) is used to seal and protect the interior of the housing (1).

8. The anti-fracture copper-aluminum equipment wire clamp according to claim 7, characterized in that: The fixing unit (4) comprises a rotating cylinder (401), the sliding cylinder (301) is rotatably connected to the rotating cylinder (401), the rotating cylinder (401) is threadedly connected to the spiral slip ring (302), and one end of the rotating cylinder (401) is fixedly connected to the insulating soft sleeve (303). The fixing unit (4) is used to fix the wire in the housing (1).

9. A wire clamp for anti-fracture copper and aluminum equipment according to claim 8, characterized in that: The fixing unit (4) further comprises a conical arc threaded plate (402) and a sealing ring (403); a plurality of conical arc threaded plates (402) are circumferentially distributed and fixedly connected to one end of the rotating cylinder (401); the plurality of conical arc threaded plates (402) are commonly threadedly connected to a threaded pressing cylinder (404); and a sealing ring (403) is connected between the threaded pressing cylinder (404) and the rotating cylinder (401).

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