Temporary grounding wire multifunctional joint for maintenance test work of transformer substation

Abstract

The invention provides a multifunctional joint for a temporary grounding wire in substation maintenance test work, and relates to the technical field of grounding wire joints. The transformer substation maintenance test work temporary ground wire multifunctional joint comprises a fixed disc, the outer side of the fixed disc is fixedly connected with a plurality of branch blocks, the outer sides of the plurality of branch blocks are fixedly connected with U-shaped blocks, the upper side of the fixed disc is provided with a limiting unit, the upper side of the fixed disc is fixedly connected with a wiring block, and the wiring block is fixedly connected with the U-shaped blocks. The limiting unit comprises a sliding groove, the sliding groove is formed in the upper sides of the U-shaped blocks, and a sliding plate is slidably connected to the inner side of the sliding groove. Through the arrangement of the fixed disc, the plurality of U-shaped blocks, the sliding groove, the sliding block, the fixed rod, the control panel, the lifting disc, the screw rod, the lifting plate, the triangular block and the arc-shaped block, the ground wire and the ground pole can be conveniently connected together by rotating the screw rod, through the cooperation of the arranged circular groove, the triangular block and the arc-shaped block, the cooperation of the ground poles in various shapes is facilitated, and the applicability of the connector is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grounding wire connectors, in particular to a multifunctional connector for temporary grounding wires for maintenance and testing work in a transformer substation. Background Art

[0002] The main function of a substation is to transform voltage and current, receive and distribute electrical energy. According to their functions and locations, substations can be divided into step-up substations and step-down substations. Among them, the substation in a power plant is usually used as a step-up substation to boost the electricity generated by the generator and transmit it to the high-voltage power grid. The temporary grounding wire is a safety short-circuit device that is installed before the power industry shuts down equipment or lines for maintenance. Its main function is to prevent damage caused by sudden power outages during the maintenance of high-voltage lines or equipment by temporarily grounding the three-phase overhead lines or busbars on the power supply side with a grounding wire.

[0003] After searching, the application number is "201921987528.7", which provides a multifunctional connector for temporary grounding wires for substation maintenance and test work. When in use, the line to be repaired is placed between the clamping plate and the top of the inner cavity of the connector body. By turning the screw clockwise to cooperate with the bearing connected between the blind hole and the screw, the T-shaped sliding block connected to the right side of the clamping plate is pushed to move along the T-shaped sliding groove on the right side wall of the inner cavity of the connector body, so that the clamping plate connected to the T-shaped sliding block moves up and down in the inner cavity of the connector body, thereby changing the distance between the clamping plate and the top of the inner cavity of the connector body, thereby achieving the purpose of adapting to the maintenance of lines with different diameters. When the clamp When the plate or T-shaped sliding block is severely worn and aged and needs to be replaced, turn the screw counterclockwise and move the screw downward to achieve the purpose of separating the screw from the clamping plate. At this time, turn the clamping plate 90°, thereby driving the T-shaped sliding block connected to the right side of the clamping plate to flip in the inner cavity of the T-shaped sliding groove, so that the T-shaped sliding block slidably connected to the inner cavity of the T-shaped sliding groove can be taken out for replacement. If only the T-shaped sliding block needs to be replaced, remove the bolts connecting the clamping plate and the T-shaped sliding block, so as to separate the T-shaped sliding block from the clamping plate, so as to achieve the purpose of only replacing the T-shaped sliding block. It has various functions, greatly improves the flexibility of the joint, and effectively saves resources.

[0004] When the substation is under maintenance, the staff is required to connect the grounding wire to the grounding pole for convenient and safe operation. However, when making the connection, a U-shaped clamp is often used to clamp the grounding pole together. There are many types of grounding poles, including cylindrical, flat steel and angle iron. When a connection is required, it is necessary to prepare various types of connectors for connection. The above-mentioned prior art requires changing the shape of the connector, which makes the applicability of the connector low. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a multifunctional connector for temporary grounding wires for substation maintenance and testing work, which solves the problem that the connector is connected to a grounding pole, the grounding pole has a variety of shapes and is not very applicable.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the present invention is implemented through the following technical solutions: a multifunctional connector for temporary grounding wires for maintenance and testing work in a substation, comprising a fixed disk, a plurality of branch blocks are fixedly connected to the outer side of the fixed disk, a plurality of branch blocks are fixedly connected to the outer sides thereof with U-shaped blocks, a limited position unit is arranged on the upper side of the fixed disk, and a wiring block is fixedly connected to the upper side of the fixed disk;

[0009] The cam is provided with a plurality of U-shaped blocks, the upper end of which is fixedly connected with a sliding plate, the upper end of which is fixedly connected with a fixing rod, the upper end of which is provided with a rectangular groove, the inner sides of the plurality of rectangular grooves are rotatably connected with a control plate, the outer side of the upper end of the control plate is rotatably connected with a rotating block 1, the outer side of the rotating block 1 is fixedly connected with a lifting plate, the upper side of the fixing plate is rotatably connected with a screw. The upper inner wall of the U-shaped block is fixedly connected with a telescopic rod 1, the lower end of the telescopic rod 1 is fixedly connected with a lifting plate, the lower side of the lifting plate is fixedly connected with a mounting plate, the lower sides of the two mounting plates are respectively fixedly connected with an arc piece and a triangular block, the upper side of the lifting plate is fixedly connected with a connecting block 2, the outer side of the connecting block 2 is rotatably connected with a connecting plate, the outer side of the upper end of the connecting plate is rotatably connected with a connecting block 1, and the connecting block 1 is fixedly connected to the sliding plate.

[0010] Preferably, the screw rod is threadedly connected to the lifting plate, so as to facilitate the control of the lifting plate to move up and down.

[0011] Preferably, the front side of the U-shaped block is fixedly connected to two fixed plates, the front side of the fixed plate is provided with a moving groove, the inner sides of the upper and lower ends of the moving groove are slidably connected to moving blocks, the front sides of the moving blocks on the upper and lower sides are rotatably connected to rotating plates, the inner side of the moving groove is rotatably connected to a two-way threaded rod, the outer side of the rotating plate is rotatably connected to a second rotating block, the front side of the fixed plate is fixedly connected to a front block, and a second telescopic rod is fixedly connected between the front block and the limit block. It is convenient to control the limit blocks on the left and right sides to move toward each other.

[0012] Preferably, opposite threads are provided at upper and lower ends of the bidirectional threaded rod, and the two ends of the bidirectional threaded rod are respectively threadedly connected to the upper and lower moving blocks.

[0013] Preferably, the outer sides of the upper ends of the left and right bidirectional threaded rods are fixedly connected with pulleys, a belt is arranged between the two pulleys, and the upper ends of the bidirectional threaded rods are fixedly connected with a turning handle, so that the left and right bidirectional threaded rods rotate simultaneously.

[0014] Preferably, the connecting plate and the control plate are both arranged in an inclined structure.

[0015] Preferably, a circular groove is provided at the bottom of the inner side of the U-shaped block.

[0016] Preferably, the rotating plates on the left and right sides are both arranged in an inclined symmetrical structure.

[0017] (III) Beneficial effects

[0018] The present invention provides a multifunctional connector for temporary grounding wires for substation maintenance and testing. It has the following beneficial effects:

[0019] 1. By providing a fixed plate, multiple U-shaped blocks, a slide groove, a slider, a fixed rod, a control panel, a lifting plate, a screw, a lifting plate, a triangular block, and an arc block, it is convenient to connect the grounding wire to the grounding column by rotating the screw, and the circular groove, triangular block, and arc block are provided to facilitate the matching of grounding columns of various shapes, thereby increasing the applicability of the joint.

[0020] 2. By providing a fixed plate, a movable groove, a movable block, a bidirectional threaded rod, a rotating plate, and a limit block, it is convenient to rotate the bidirectional threaded rod, control the limit blocks on the left and right sides to move toward each other, facilitate the connection between the limit blocks and the grounding column, and increase the stability of the joint connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall three-dimensional structure diagram of the present invention;

[0022] Figure 2 It is another perspective three-dimensional structure diagram of the present invention;

[0023] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0024] Figure 4 It is a partial three-dimensional structural diagram of the limiting unit in the present invention;

[0025] Figure 5 for Figure 4 The enlarged view of point B in the middle;

[0026] Figure 6 It is a front view stereoscopic structural diagram of the present invention.

[0027] Among them, 1. fixed plate; 2. terminal block; 3. branch block; 4. U-shaped block; 5. circular groove; 6. limiting unit; 601. slide groove; 602. slide plate; 603. fixed rod; 604. telescopic rod one; 605. lifting plate; 606. connecting block one; 607. connecting plate; 608. connecting block two; 609. rectangular groove; 610. control board; 611. rotating block one; 612. lifting plate; 613. screw rod; 615. mounting plate; 616. arc piece; 617. triangular block; 618. fixed plate; 619. moving groove; 620. moving block; 621. two-way threaded rod; 622. rotating plate; 623. rotating block two; 624. limiting block; 625. front block; 626. telescopic rod two; 627. turning handle; 628. pulley; 629. belt. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] like Figure 1-Figure 6 As shown, a multifunctional connector for temporary grounding wire of a substation maintenance test work comprises a fixed disk 1, a plurality of branch blocks 3 are fixedly connected to the outer side of the fixed disk 1, a U-shaped block 4 is fixedly connected to the outer side of the plurality of branch blocks 3, a limiting unit 6 is arranged on the upper side of the fixed disk 1, a wiring block 2 is fixedly connected to the upper side of the fixed disk 1, a circular groove 5 is provided on the bottom of the inner side of the U-shaped block 4, and the circular groove 5 is convenient for matching with the cylindrical grounding column.

[0031] The limiting unit 6 includes a slide groove 601, which is provided on the upper side of the plurality of U-shaped blocks 4. A slide plate 602 is slidably connected to the inner side of the slide groove 601. A fixed rod 603 is fixedly connected to the upper side of the slide plate 602. A rectangular groove 609 is provided on the upper side of the fixed rod 603. A control plate 610 is rotatably connected to the inner side of the plurality of rectangular grooves 609. A rotating block 611 is rotatably connected to the outer side of the upper end of the control plate 610. A lifting plate 612 is fixedly connected to the outer side of the rotating block 611. The fixed plate The upper side of the U-shaped block 4 is rotatably connected with a screw rod 613, the upper inner wall of the U-shaped block 4 is fixedly connected with a telescopic rod 1 604, the lower end of the telescopic rod 1 604 is fixedly connected with a lifting plate 605, the lower side of the lifting plate 605 is fixedly connected with a mounting plate 615, the lower sides of the two mounting plates 615 are respectively fixedly connected with an arc piece 616 and a triangular block 617, the upper side of the lifting plate 605 is fixedly connected with a connecting block 2 608, the outer side of the connecting block 2 608 is rotatably connected with a connecting plate 607, and the connecting plate The outer side of the upper end of 607 is rotatably connected with a connecting block 606, and the connecting block 606 is fixedly connected to the slide plate 602. The connecting plate 607 and the control plate 610 are both arranged in an inclined structure, and the screw 613 is threadedly connected to the lifting plate 612. When connected with the grounding column, the grounding column is first passed through the ancient U-shaped block 4, and then the screw 613 is rotated, and the screw 613 drives the lifting plate 612 to descend, and the lifting plate 612 drives the control plate 610 to rotate, and the control plate 610 drives the fixed rod 603 Move, the fixed rod 603 drives the slide plate 602 to move, the slide plate 602 drives the connecting plate 607 to rotate, the connecting plate 607 drives the lifting plate 605 to descend, the lifting plate 605 drives the mounting plate 615 to descend, the mounting plate 615 drives the triangular block 617 and the arc piece 616 to descend, so that the grounding column is connected to the joint, and through the set mounting plate 615, the triangular block 617 and the arc piece 616, it is convenient for the joint to adapt to the flat steel type, angle iron type, and cylindrical grounding column, thereby increasing the applicability of the joint.

[0032] Embodiment 2:

[0033] like Figure 1-Figure 6 As shown, a multifunctional connector for temporary grounding wire of a substation maintenance test work comprises a fixed disk 1, a plurality of branch blocks 3 are fixedly connected to the outer side of the fixed disk 1, a U-shaped block 4 is fixedly connected to the outer side of the plurality of branch blocks 3, a limiting unit 6 is arranged on the upper side of the fixed disk 1, a wiring block 2 is fixedly connected to the upper side of the fixed disk 1, a circular groove 5 is provided on the bottom of the inner side of the U-shaped block 4, and the circular groove 5 is convenient for matching with the cylindrical grounding column.

[0034] The limiting unit 6 includes a slide groove 601, which is provided on the upper side of the plurality of U-shaped blocks 4. A slide plate 602 is slidably connected to the inner side of the slide groove 601. A fixed rod 603 is fixedly connected to the upper side of the slide plate 602. A rectangular groove 609 is provided on the upper side of the fixed rod 603. A control plate 610 is rotatably connected to the inner side of the plurality of rectangular grooves 609. A rotating block 611 is rotatably connected to the outer side of the upper end of the control plate 610. A lifting plate 612 is fixedly connected to the outer side of the rotating block 611. The fixed plate The upper side of the U-shaped block 4 is rotatably connected with a screw rod 613, the upper inner wall of the U-shaped block 4 is fixedly connected with a telescopic rod 1 604, the lower end of the telescopic rod 1 604 is fixedly connected with a lifting plate 605, the lower side of the lifting plate 605 is fixedly connected with a mounting plate 615, the lower sides of the two mounting plates 615 are respectively fixedly connected with an arc piece 616 and a triangular block 617, the upper side of the lifting plate 605 is fixedly connected with a connecting block 2 608, the outer side of the connecting block 2 608 is rotatably connected with a connecting plate 607, and the connecting plate The outer side of the upper end of 607 is rotatably connected with a connecting block 606, and the connecting block 606 is fixedly connected to the slide plate 602. The connecting plate 607 and the control plate 610 are both arranged in an inclined structure, and the screw 613 is threadedly connected to the lifting plate 612. When connected with the grounding column, the grounding column is first passed through the ancient U-shaped block 4, and then the screw 613 is rotated, and the screw 613 drives the lifting plate 612 to descend, and the lifting plate 612 drives the control plate 610 to rotate, and the control plate 610 drives the fixed rod 603 Move, the fixed rod 603 drives the slide plate 602 to move, the slide plate 602 drives the connecting plate 607 to rotate, the connecting plate 607 drives the lifting plate 605 to descend, the lifting plate 605 drives the mounting plate 615 to descend, the mounting plate 615 drives the triangular block 617 and the arc piece 616 to descend, so that the grounding column is connected to the joint, and through the set mounting plate 615, the triangular block 617 and the arc piece 616, it is convenient for the joint to adapt to the flat steel type, angle iron type, and cylindrical grounding column, thereby increasing the applicability of the joint.

[0035] The front side of the U-shaped block 4 is fixedly connected with two fixed plates 618, and a moving groove 619 is provided on the front side of the fixed plate 618. The inner sides of the upper and lower ends of the moving groove 619 are slidably connected with moving blocks 620, and the front sides of the moving blocks 620 on the upper and lower sides are rotatably connected with rotating plates 622. The inner side of the moving groove 619 is rotatably connected with a two-way threaded rod 621, and the outer side of the rotating plate 622 is rotatably connected with a rotating block 2 623. The front side of the fixed plate 618 is fixedly connected with a front block 625, and a telescopic rod 2 626 is fixedly connected between the front block 625 and the limit block 624. The upper and lower ends of the two-way threaded rod 621 are provided with opposite threads, and the two ends of the two-way threaded rod 621 are respectively threadedly connected to the upper and lower moving blocks 620, and the outer sides of the upper ends of the two-way threaded rods 621 on the left and right sides are fixedly connected with belts Wheel 628, a belt 629 is arranged between the two pulleys 628, a turning handle 627 is fixedly connected to the upper end of the two-way threaded rod 621, and the left and right rotating plates 622 are both arranged with an inclined symmetrical structure. When the joint is connected to the grounding column, the turning handle 627 is turned, and the turning handle 627 drives the two-way threaded rod 621 to rotate, and the two-way threaded rod 621 drives the upper and lower moving blocks 620 to approach each other, and the moving block 620 drives the rotating plate 622 to rotate, so that the rotating plate 622 drives the limit block 624 to move left and right, and the two-way threaded rod 621 drives the pulley 628 to rotate. Under the action of the belt 629, the two two-way threaded rods 621 rotate at the same time, so that the limit blocks 624 on the left and right sides are close to each other, which makes it convenient for the limit blocks 624 on both sides to clamp the grounding column and increase the stability of the joint connection.

[0036] Working principle: When in use, the staff first passes the grounding column through the U-shaped block 4, and then rotates the screw 613. The screw 613 drives the lifting plate 612 to descend. Under the action of the control board 610, the fixed rod 603, the slide plate 602 and the connecting plate 607, it is convenient to control the lifting plate 605 to descend, so that the lifting plate 605 drives the mounting plate 615 to descend, so that the grounding column is connected to the joint, and through the set triangular block 617, the arc piece 616 and the mounting plate 615, it is convenient to cooperate with the grounding columns of flat steel type, cylindrical type and angle iron type structures, increase the applicability of the joint, and turn the handle 627 to control the rotation of the two-way threaded rod 621. Under the action of the moving block 620 and the rotating plate 622, it is convenient to control the horizontal movement of the limit block 624, so that the limit blocks 624 on the left and right sides are close to each other, which is convenient to increase the stability of the connection between the joint and the grounding column.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional connector for temporary grounding wires for maintenance and testing of substations, comprising a fixing plate (1), characterized in that: A plurality of branch blocks (3) are fixedly connected to the outer side of the fixed disk (1), and a U-shaped block (4) is fixedly connected to the outer side of each of the branch blocks (3). A limiting unit (6) is provided on the upper side of the fixed disk (1), and a wiring block (2) is fixedly connected to the upper side of the fixed disk (1); The limiting unit (6) comprises a slide groove (601), wherein the slide groove (601) is provided on the upper side of a plurality of U-shaped blocks (4), a slide plate (602) is slidably connected to the inner side of the slide groove (601), a fixed rod (603) is fixedly connected to the upper side of the slide plate (602), a rectangular groove (609) is provided on the upper side of the fixed rod (603), a control plate (610) is rotatably connected to the inner sides of the plurality of rectangular grooves (609), a rotating block (611) is rotatably connected to the outer side of the upper end of the control plate (610), a lifting plate (612) is fixedly connected to the outer side of the rotating block (611), a screw rod (613) is rotatably connected to the upper side of the fixed plate (1), and the A telescopic rod 1 (604) is fixedly connected to the inner wall of the upper side of the U-shaped block (4); a lifting plate (605) is fixedly connected to the lower end of the telescopic rod 1 (604); a mounting plate (615) is fixedly connected to the lower side of the lifting plate (605); arc-shaped pieces (616) and triangular blocks (617) are fixedly connected to the lower sides of the two mounting plates (615); a connecting block 2 (608) is fixedly connected to the upper side of the lifting plate (605); a connecting plate (607) is rotatably connected to the outer side of the connecting block 2 (608); a connecting block 1 (606) is rotatably connected to the outer side of the upper end of the connecting plate (607); and the connecting block 1 (606) is fixedly connected to the slide plate (602).

2. A multifunctional connector for temporary grounding wire for substation maintenance and testing according to claim 1, characterized in that: The screw rod (613) is threadedly connected to the lifting plate (612).

3. A multifunctional connector for temporary grounding wire for substation maintenance and testing according to claim 1, characterized in that: The front side of the U-shaped block (4) is fixedly connected to two fixed plates (618), and a moving groove (619) is provided on the front side of the fixed plate (618). The inner sides of the upper and lower ends of the moving groove (619) are slidably connected to moving blocks (620), and the front sides of the moving blocks (620) on the upper and lower sides are rotatably connected to rotating plates (622). The inner side of the moving groove (619) is rotatably connected to a bidirectional threaded rod (621), and the outer side of the rotating plate (622) is rotatably connected to a second rotating block (623). The front side of the fixed plate (618) is fixedly connected to a front block (625), and a second telescopic rod (626) is fixedly connected between the front block (625) and the limit block (624).

4. A multifunctional connector for temporary grounding wire for substation maintenance and testing according to claim 3, characterized in that: The upper and lower ends of the bidirectional threaded rod (621) are provided with opposite threads, and the two ends of the bidirectional threaded rod (621) are respectively threadedly connected to the upper and lower moving blocks (620).

5. A multifunctional connector for temporary grounding wire for substation maintenance and testing according to claim 3, characterized in that: The outer sides of the upper ends of the left and right bidirectional threaded rods (621) are fixedly connected to pulleys (628), a belt (629) is arranged between the two pulleys (628), and the upper ends of the bidirectional threaded rods (621) are fixedly connected to a turning handle (627).

6. A multifunctional connector for temporary grounding wire for substation maintenance and testing according to claim 1, characterized in that: The connecting plate (607) and the control plate (610) are both arranged in an inclined structure.

7. A multifunctional connector for temporary grounding wire for substation maintenance and testing according to claim 1, characterized in that: A circular groove (5) is provided at the bottom of the inner side of the U-shaped block (4).

8. The multifunctional connector for temporary grounding wire for substation maintenance and testing according to claim 3 is characterized by: The rotating plates (622) on the left and right sides are both arranged in an obliquely symmetrical structure.

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