CN203589538U - Multi-angle grounding device - Google Patents

Abstract

The utility model discloses a multi-angle grounding device, which comprises an operating rod, a connecting rod, and a clamp head; the operating rod and the connecting rod respectively include an insulating outer rod and an insulating inner rod movably sleeved in the outer rod. The outer rod of the operating rod is movably provided with a rotating part fixedly connected with the inner rod of the operating rod, and the outer rod and the inner rod of the operating rod are respectively movably connected with the outer rod and the inner rod of the connecting rod; It includes a fixed jaw and an elastic movable jaw that moves relative to the fixed jaw, the outer rod and the inner rod of the connecting rod are respectively movably connected with the fixed jaw and the elastic movable jaw; the rotating part and the operating rod The inner rod on the top is fixedly connected, and the rotating part, the operating rod and the inner rod on the connecting rod constitute a drive system to drive the elastic movable jaw to move relative to the fixed jaw. The utility model has the advantages of large contact area, strong ability to carry short-circuit current, and firm and reliable after installation.

Description

A multi-angle grounding device

technical field

The utility model belongs to electric safety devices, in particular to a multi-angle grounding device.

Background technique

Installing grounding wires in substations is one of the technical measures to prevent personal electric shock risks, and is a life-saving line for on-site operators. There are many angles of connecting wires in substations. Traditional grounding wires can only make good contact in the horizontal direction. For wires with an installation angle greater than 60 degrees, the existing grounding wires cannot meet the requirements, mainly because the contact area is not enough and it is easy to fall off; Manually binding again to prevent the grounding wire from falling off will increase the labor intensity of the staff; when the hanging grounding wire is high, the binding cannot be performed, resulting in poor contact of the grounding wire, which does not meet the safety protection requirements, and causes the personnel to have the safety of electric shock risk.

Utility model content

The technical problem to be solved by the utility model is to provide a multi-angle grounding device with large contact area, strong short-circuit current carrying capacity, and firm and reliable installation.

The technical scheme that realizes the utility model object to adopt is as follows:

The multi-angle grounding device provided by the utility model includes an operating rod, a connecting rod, and a clamp head; the operating rod and the connecting rod respectively include an insulating outer rod and an insulating inner rod movably sleeved in the outer rod, and the operating rod A rotating part fixedly connected with the inner rod of the operating rod is movable on the outer rod of the operating rod, and the outer rod and the inner rod of the operating rod are respectively movably connected with the outer rod and the inner rod of the connecting rod; The jaws and the elastic movable jaws that move relative to the fixed jaws, the outer rod and the inner rod of the connecting rod are respectively movably connected with the fixed jaws and the elastic movable jaws; The inner rod is fixedly connected, and the rotating part, the operating rod and the inner rod on the connecting rod constitute a drive system to drive the elastic movable jaw to move relative to the fixed jaw.

The outer rod and inner rod of the operating rod and the outer rod and inner rod of the connecting rod are respectively moved through the first outer rod connecting part and the first inner rod connecting part movable in the first outer rod connecting part The outer rod and the inner rod of the connecting rod are respectively connected to the fixed jaw and the elastic movable part of the pliers through the second outer rod connecting part and the second inner rod connecting part movable in the second outer rod connecting part. Jaw articulation.

The pliers head also includes a pliers head seat, a transmission shaft, a bevel gear pair transmission mechanism and a screw drive mechanism, and the pliers head seat includes a movable support and a fixed connecting column; the fixed jaw is hinged on the support Above, the limit of the elastic movable jaw is set on the fixed jaw and can move along the fixed jaw, the transmission shaft is sleeved in the connecting column, and the transmission shaft is connected to the transmission mechanism and the screw transmission mechanism through the bevel gear. The elastic movable jaws are matched, and the fixed jaws and the elastic movable jaws of the pliers head are respectively connected with the second outer rod and the second inner rod on the outer rod and the inner rod of the connecting rod through the connecting column and the transmission shaft. The rod connecting parts are flexibly connected.

The outer rod of the operating rod is provided with a positioning pin matched with the inner rod of the operating rod, or the outer rod of the connecting rod is provided with a positioning pin matched with the connected inner rod.

There are several connecting rods, and the connecting rods are movably connected through another first outer rod connecting part and a first inner rod connecting part.

Features of the utility model:

1. In order to make the traditional high-altitude work on the ground, the operating lever and the connecting rod are movably connected to increase the working height, which is convenient for disassembly and carrying;

2. Both the operating rod and the connecting rod adopt a two-layer structure of outer rod and inner rod. The outer rod is used to realize connection and clamping, and the inner rod realizes force transmission. The pliers of the pliers head can be controlled remotely through the rotating parts on the operating rod The mouth can be opened and closed freely, easy to use;

3. The outer and inner rods of the operating rod and connecting rod are made of insulating materials to ensure personal safety;

4. In order to meet the needs of wiring at different angles, the fixed jaws and elastic movable jaws of the pliers are designed in a movable manner. When working, the direction of the fixed jaws and elastic movable jaws can be rotated according to the direction of the wire or busbar. The grounding operation of the wire parallel to the ground or the grounding operation of the wire perpendicular to the ground meets the requirement that the wire can be installed at any angle;

5. When the inner rod of the operating rod and connecting rod is driving the pliers head to work, through the self-locking function of the screw transmission mechanism, it can be automatically locked at any force that needs to be clamped, and it will not loosen or open by itself under non-operating conditions. In addition, the inner rod of the operating rod or the connecting rod can be locked by the positioning pin to ensure firm installation, not easy to fall off, and safe and reliable.

6. Compared with the traditional grounding wire, when the angle of the wire is greater than 60 degrees, the contact area of the contact part of the device is large, and the short-circuit current it bears is large.

7. There is no need for binding, which reduces the labor intensity of personnel and improves work efficiency.

8. It has good adaptability and can be used on wires and busbars in various arrangements.

9. After the grounding device is installed, the connecting rod can be taken out to prevent unrelated personnel from touching the grounding device and causing changes in safety measures.

Further illustrate the technical scheme of the utility model below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the operating rod in the utility model.

Fig. 3 is a schematic diagram of the connecting rod in the utility model.

Fig. 4 is a schematic diagram of the pliers in the utility model.

FIG. 5 is a top view of FIG. 4 .

Detailed ways

Referring to Fig. 1-Fig. 5, the multi-angle grounding device provided by the utility model includes an operating rod 1, a connecting rod 2 and a clamp head 3; the operating rod 1 includes an insulating outer rod 102 and an insulating The inner rod 103, the connecting rod 2 includes an insulating outer rod 204 and an insulating inner rod 205 movably sleeved in the outer rod 204; The inner rods 205 are respectively movably connected through the first outer rod connecting part and the first inner rod connecting part movably arranged in the first outer rod connecting part; the first outer rod connecting part is formed by the first internal fixed sleeve 107 and the An external fixed sleeve 202 is formed, and the first internal rod connection part is composed of the first internal connection head 105 and the first external connection head 201; the clamp head 3 includes a fixed jaw 310 and an elastic movable jaw 309 that moves relative to the fixed jaw 310 The outer rod 204 and the inner rod 205 of the connecting rod 2 pass through the second outer rod connecting part and the second inner rod connecting part movable in the second outer rod connecting part and the fixed jaws 310 and 310 of the pliers head 3 respectively. The elastic moving jaw 309 is flexibly connected; the second outer rod connecting part and the second inner rod connecting part are respectively the second inner fixed sleeve 209 and the second inner connecting joint 207; one end of the outer rod 102 of the operating rod 1 is provided with a rotating Part 101, the other end of the outer rod 102 is fixed with a first internal fixed sleeve 107 through the rod joint 104 and the compression sleeve 106, and the first internal fixed sleeve 107 is movable with a first internal connection joint 105, and the operating rod 1 One end of the inner rod 103 is fixedly connected with the rotating part 101, and the other end of the inner rod 103 is fixedly connected with the first inner connecting joint 105; An external fixed sleeve 202, the other end of the outer rod 204 is fixed with a second internal fixed sleeve 209 through a rod joint 206 and a compression sleeve 208, and the first external fixed sleeve 202 is movable with a first external connection joint 201, and the first external connection The fixed sleeve 202 is provided with a positioning pin 210 to locate the first external connector 201, and the second internal fixed sleeve 209 is movable with a second internal connector 207, and the two ends of the inner rod 205 of the connecting rod 2 are respectively connected to the first The outer connecting head 201 and the second inner connecting head 207 are fixedly connected; the outer rod 204 of the connecting rod 2 is connected to the first inner fixing sleeve 107 on the outer rod 102 of the operating rod 1 through the first outer fixing sleeve 202, And through the positioning pin 210 on the first external fixed sleeve 202 and the draw-in groove 108 on the first internal fixed sleeve 107, the positioning is realized, and the inner rod 205 of the connecting rod 2 is connected with the operating rod 1 through the first external connection head 201 at the same time. The first inner connector 105 on the inner rod 103 of the inner rod 103 is inserted into each other to realize the flexible connection; the outer rod 204 of the connecting rod 2 is provided with a positioning pin 203 that matches the inner rod 205 (the positioning pin 203 can also be located in the operation The outer rod 102 of the rod 1 is matched with the inner rod 103);

The pliers 3 (see Fig. 1, Fig. 4, Fig. 5) includes a pliers seat 303, a fixed jaw 310, a moving jaw 309, a transmission shaft 305, a bevel gear pair transmission mechanism and a screw transmission mechanism; the pliers seat 303 There is a bracket 308 for the upper movement, which is limited by screws 316 and fastened by locking screws 315; a connecting column 301 is fixedly arranged on the clamp head seat 303; the fixed jaw 310 is hinged on the bracket 308 through the shaft 314, and the movable jaw The 309 limit is set on the fixed jaw 310 and can move along the fixed jaw 310, and a return spring 313 is arranged between the fixed jaw 310 and the movable jaw 309, and the movable jaw 309 and the return spring 313 form an elastic movable jaw The fixed jaw 310 is provided with a ground wire pressing bolt 311; the transmission shaft 305 is sleeved in the connecting column 301 and positioned by the positioning pin 302 on the connecting column 301; the transmission shaft 305 is fixedly connected with the bevel gear 302, One end of the bevel gear 307 is movably sleeved in the bracket 308, and the bevel gear 307 is provided with a screw rod 306 through a threaded connection sleeve to form a screw transmission mechanism. Cooperate with the limit bracket 304 on the limit bracket 304, and the limit bracket 304 is provided with a gland 317 to limit the end of the screw rod 306; the transmission shaft 305 passes through the bevel gear pair transmission mechanism composed of bevel gears 307, 312, the screw transmission mechanism and The elastic movable jaws 309 are matched; the outer rod 204 and the inner rod 205 of the connecting rod 2 are respectively connected with the connecting column 301 and the transmission shaft of the pliers head 3 through the second inner fixed sleeve 209 and the second inner connector 207 305 Active Connection.

Another outer joint and another inner joint on the outer rod and the inner rod 205 of the connecting rod 2 are respectively movably connected with the connecting column and the transmission shaft.

The fixed jaw 310 is plugged and connected to the second internal fixed sleeve 209 on the connecting rod 2 through the connecting column 301 on the clamp head seat 303, and is connected to the second internal fixed sleeve 209 through the positioning pin 302 on the connecting column 301. The clamping slot 211 cooperates to realize the positioning, and at the same time, the movable jaw 309 realizes the movable connection through the plug connection of the transmission shaft 305 on the jaw seat 303 and the second internal connector 207 on the connecting rod 2 .

The rotating part 101 and the inner rods 103, 205 on the operating rod 1 and the connecting rod 2 constitute a driving system, and the driving system drives the moving jaw 309 relative to the fixed pliers through the bevel gear pair transmission mechanism on the pliers head 3 and the screw transmission mechanism. MIT 310 Sport.

In the utility model, several connecting rods 2 can be used as required, and the connecting rods 2 are movably connected by another first outer rod connecting part and a first inner rod connecting part.

The using method of the utility model:

1. According to the height of the grounding position from the ground, insert and assemble the operating rod 1 and the connecting rod 2 in sequence.

2. In order to meet the wiring requirements of different angles, the locking screw 315 can be loosened to rotate the fixed jaw 310 and the movable jaw 309, which are respectively used for the operation of the live wire parallel to the ground and the operation of the live wire perpendicular to the ground. After a good angle, lock with locking screw 315, then connect the grounding wire to the fixed jaw 310 by the grounding wire pressing bolt 311.

3. The operator lifts the operating rod 1, clamps the vertical wire with the jaws of the pliers at the end of the connecting rod 2, rotates the rotating part 101 in his hand, passes through the operating rod 1 and the inner rods 103, 205 of the connecting rod 2 and the umbrella The gear pair transmission mechanism and the screw transmission mechanism transmit power to the moving jaw 309 on the clamp head 3 to clamp the vertical wire and complete the grounding work.

4. After the inspection and test site is completed, the operator rotates the rotating part 101 in the opposite direction, loosens the movable jaw 309, and separates from the vertical wire.

Claims (5)

1. A multi-angle grounding device is characterized in that it includes an operating rod, a connecting rod, and a clamp head; the operating rod and the connecting rod comprise an insulating outer rod and an insulating inner rod that is movably sleeved in the outer rod respectively, and the The outer rod of the operating rod is movably provided with a rotating part fixedly connected with the inner rod of the operating rod, and the outer rod and the inner rod of the operating rod are respectively movably connected with the outer rod and the inner rod of the connecting rod; It includes a fixed jaw and an elastic movable jaw that moves relative to the fixed jaw. The outer rod and the inner rod of the connecting rod are respectively movably connected with the fixed jaw and the elastic movable jaw; the rotating part and the operating rod The inner rod on the upper part is fixedly connected, and the rotating part forms a driving system with the inner rod on the operating rod and the connecting rod to drive the elastic movable jaw to move relative to the fixed jaw. 2. The multi-angle grounding device according to claim 1, characterized in that the outer rod and the inner rod of the operating rod and the outer rod and the inner rod of the connecting rod are respectively connected by a first outer rod and a movable The first inner rod connecting part arranged in the first outer rod connecting part is movably connected, and the outer rod and the inner rod of the connecting rod are respectively passed through the second outer rod connecting part and the first outer rod connecting part movably arranged in the second outer rod connecting part. The two inner rod connecting parts are movably connected with the fixed jaw and the elastic movable jaw of the pliers head. 3. The multi-angle grounding device according to claim 2, characterized in that the tong head also includes a tong head seat, a transmission shaft, a bevel gear pair transmission mechanism and a screw drive mechanism, and the tong head seat includes a movable bracket 1. A connecting column fixedly arranged; the fixed jaw is hinged on the support, the elastic moving jaw limit is set on the fixed jaw and can move along the fixed jaw, and the transmission shaft is sleeved on the connecting column Inside, the transmission shaft cooperates with the elastic movable jaw through the bevel gear pair transmission mechanism and the screw transmission mechanism, and the fixed jaw and the elastic movable jaw of the pliers head are connected with the connecting rod through the connecting column and the transmission shaft respectively. The second outer rod connecting part on the outer rod and the inner rod is flexibly connected with the second inner rod connecting part. 4. The multi-angle grounding device according to claim 3, characterized in that the outer rod of the operating rod is provided with a positioning pin matched with the inner rod of the operating rod, or the outer rod of the connecting rod is provided with a connecting pin. Dowel pins that match the inner rods. 5. The multi-angle grounding device according to claim 4, characterized in that there are several connecting rods, and the connecting rods are movably connected by another first outer rod connecting part and a first inner rod connecting part.

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