CN104393430A - Pull-tab-shaped bayonet lock self-locking type lead end grounding clamp - Google Patents

Abstract

Pull-ring type bayonet self-locking wire end grounding clamp, including operating lever, Y-shaped connecting rod, L-shaped clamp, anti-falling mechanism, T-shaped stopper and second compression spring. The operating rod is connected with the Y-shaped connecting rod through the connecting hole; the Y-shaped connecting rod includes two bent plates, the left and the right, the upper part of which is connected with the operating rod through the connecting hole, and the lower part is connected with the L-shaped clamp Connected by bolts; the upper part of the L-shaped wire clamp is connected with the Y-shaped connecting rod by bolts, and a groove and an anti-falling mechanism are provided inside; the anti-falling mechanism includes a ring-type bayonet and a first compression spring, The first compression spring is embedded in the L-shaped clamp, and the ring-shaped bayonet is in contact with the T-shaped block under the action of the first compression spring; the second compression spring is sleeved outside the T-shaped block, and its upper end is in contact with the T-shaped block. The type stopper is in contact, and its lower end is in contact with the L-shaped clamp. The present invention can solve the existing problems of complex structure and easy falling off of the ground wire clip, and has broad market prospect and commercial value.

Description

Pull ring type bayonet self-locking wire end grounding clamp

technical field

The invention relates to a maintenance tool for high-voltage wires, in particular to a ring-type bayonet self-locking type wire end grounding wire clamp which is convenient to operate, safe and reliable.

technical background

The grounding clamp at the wire end is a safety device used to temporarily short-circuit and ground the power transmission wire in a power failure. At present, the clamps used by various power grid companies mainly include double tongue type, flat type, impact type and spiral type. Yet these several clamp structures all have unreasonable parts. The double-tongue type wire clamp generally adopts the method of hooking, which is suitable for round wires. With the weight of the insulating rod itself, the top surface is pressed down on the wire, and the tongues on both sides are clamped and fixed. It is easy to use, but it is easy to slip off. The jaws of the flat type wire clamp generally apply pressure through the clamping force of the spring to clamp the grounding point, but the contact is unreliable and easy to slip off. The jaws of the impact-type grounding clamp are clamp-shaped, and they are pressed by springs, which may also easily cause slippage. The spiral grounding clamp relies on the spiral compression method, and its biggest feature is that the contact is firm and reliable, but its labor intensity is high, the efficiency is low, and the operation is difficult. Therefore, it is necessary to develop a convenient, safe and reliable grounding clamp.

Contents of the invention

In order to overcome the defects existing in the prior art, the present invention provides a pull-ring type bayonet self-locking wire terminal grounding clamp, which can well solve the existing problems of complex structure and easy slippage of the existing grounding clamps .

The technical solution adopted in the present invention is: a ring-type bayonet self-locking wire end grounding clamp, including an operating lever, a Y-shaped connecting rod, an L-shaped clamp, an anti-falling mechanism, a T-shaped block and a second compressed spring. The operating rod is composed of two sections of cylinders, and the operating rod and the Y-shaped connecting rod are connected through the connecting hole; the Y-shaped connecting rod includes two curved plates on the left and right, and the upper part of the Y-shaped connecting rod is connected to the operating rod through The holes are connected, the lower part of the Y-shaped connecting rod is connected with the L-shaped clamp by bolts; the upper part of the L-shaped clamp is connected with the Y-shaped connecting rod by bolts, and the inside of the L-shaped clamp is provided with grooves and Anti-falling mechanism; the anti-falling mechanism is embedded with the L-shaped wire clamp. The anti-falling mechanism includes a ring-shaped bayonet pin and a first compression spring. The first compression spring is embedded in the L-shaped wire clip, and the ring-shaped bayonet pin is Under the action of the first compression spring, it is in contact with the T-shaped block; the second compression spring is sleeved outside the T-shaped block, the upper end of the second compression spring is in contact with the T-shaped block, and the lower end of the second compression spring is in contact with the L-shaped block. The clips are in contact. The present invention can solve the existing problems of complex structure and easy falling off of the ground wire clip, and has broad market prospect and commercial value.

The operating rod is composed of a small-end cylinder and a large-end cylinder, and the diameters of the two cylinders are smaller than the upper connecting hole on the left curved plate and the upper connecting hole on the right curved plate of the Y-shaped connecting rod. The operating rod passes through the upper connecting hole of the left curved plate and the upper connecting hole of the right curved plate of the Y-shaped connecting rod to support the entire grounding clamp; Pull the round pull ring of the ring-type bayonet to unlock the anti-dropout mechanism.

The Y-shaped connecting rod includes left and right two curved plates, the bending angles of the left and right two curved plates are all 150°, the upper and lower parts of the left curved plate are provided with connection holes, the upper and lower parts of the right curved plate and The lower part is provided with connecting holes. The upper connecting hole of the left curved plate and the upper connecting hole of the right curved plate are connected with the operating rod, and the lower connecting hole of the left curved plate and the lower connecting hole of the right curved plate are connected with the L-shaped clamp bolt.

The upper part of the L-shaped wire clamp is provided with a connecting hole, and the middle part of the L-shaped wire clamp is provided with a limit hole perpendicular to the long end of the L-shaped wire clamp, which is used to limit the left and right movement of the pull ring type bayonet. There is a rectangular groove perpendicular to the lower part of the L-shaped wire clamp, so that the T-shaped block can move up and down in the rectangular groove without breaking away from the rectangular groove.

The anti-falling mechanism includes two parts, the first compression spring and the ring-type bayonet pin. The front part of the ring-type bayonet is triangular, which is convenient for the high-voltage wire to be squeezed into the L-shaped clamp. The middle part of the ring-type bayonet is cylindrical and is set in the first compression spring. The bit hole is connected with a circular pull ring.

The upper part of the T-shaped stopper is a cuboid, and the cuboid moves up and down in the rectangular groove perpendicular to the lower part of the L-shaped clamp. The lower part of the T-shaped stopper is a cylinder, which is sleeved in the second compression spring.

The second compression spring is sleeved outside the T-shaped block, the upper end of the second compression spring is in contact with the T-shaped block, and the lower end of the second compression spring is in contact with the L-shaped clamp.

The beneficial effects of the present invention are:

1. The ring-type detent self-locking mechanism is adopted. When the high-voltage wire is squeezed into the L-shaped clamp, it can automatically lock the high-voltage wire, effectively preventing the high-voltage wire from automatically falling out of the clamp, and achieving the purpose of safety and reliability.

2. The operating rod can be disassembled as an unlocking tool after the hooking operation is completed. Use the small end cylinder of the operating rod to pass through and pull the circular pull ring of the pull ring type bayonet, so that the high-voltage wire is separated from the L-shaped clamp and unlocked, which can effectively avoid human-made accidental touches or accidental unlocking caused by natural causes, and ensure reliable protection. The life safety of high-pressure workers.

3. The main working parts of the present invention are composed of a ring-type bayonet self-locking mechanism, an operating rod, and a U-shaped wire clamp. The structure is simple, the operation is convenient, and the high-voltage coupling operation is simplified.

Description of drawings

Fig. 1 is a schematic structural view of the pull-ring type bayonet self-locking wire end grounding clamp according to the present invention.

Fig. 2 is a schematic diagram of the pull-ring type bayonet self-locking wire end ground wire clip according to the present invention after the wire is clamped.

Fig. 3 is a half-sectional view of the pull-ring type bayonet self-locking wire end ground wire clip according to the present invention after the wire is clamped.

Fig. 4 is a schematic diagram of the structure of the operating lever of the ring-type bayonet self-locking wire end grounding clamp according to the present invention.

Fig. 5 is a schematic diagram of the structure of the Y-shaped connecting rod of the ring-type bayonet self-locking wire end grounding clamp according to the present invention.

Fig. 6 is a schematic diagram of the structure of the L-shaped wire clamp of the ring-type bayonet self-locking wire end grounding wire clamp according to the present invention.

Fig. 7 is a schematic diagram of the ring-type bayonet structure of the pull-ring-type bayonet self-locking wire end grounding clamp according to the present invention.

The marks in the figure are: operating rod 1, small-end cylinder 11, large-end cylinder 12, Y-shaped connecting rod 2, left curved plate 21, right curved plate 22, upper connecting hole 211 of the left curved plate, and lower connecting hole 212 of the left curved plate , The upper connection hole 221 of the right curved plate, the lower connection hole 222 of the right curved plate, the L-shaped wire clamp 3, the upper connection hole 31 of the L-shaped wire clamp, the L-shaped wire clamp limit hole 32, the rectangular groove 33, the anti-falling mechanism 4 , the first compression spring 41, the pull ring type bayonet pin 42, the circular pull ring 421, the T-shaped block 5, the second compression spring 6, the high voltage wire 7.

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the drawings and embodiments.

As shown in Figures 1 and 2, the pull ring type bayonet self-locking wire end grounding clamp according to the present invention includes an operating lever 1, a Y-shaped connecting rod 2, an L-shaped clamp 3, an anti-falling mechanism 4, a T Type stopper 5 and second compression spring 6.

The operating rod 1 is composed of a small-end cylinder 11 and a large-end cylinder 12, and the small-end cylinder 11 and the large-end cylinder 12 are connected with the upper connection hole 211 of the left curved plate 21 and the upper connection hole 221 of the right curved plate 22 of the Y-shaped connecting rod 2 . The operating rod 1 passes through the upper connecting hole 211 of the left curved plate 21 and the upper connecting hole 221 of the right curved plate 22 of the Y-shaped connecting rod 2 to support the entire L-shaped clamp 3; The small end cylinder 11 of the operating rod 1 passes through and pulls the circular pull ring 421 of the pull ring type detent 42 to unlock the anti-falling mechanism 4 . The Y-shaped connecting rod 2 includes a left curved plate 21 and a right curved plate 22, the bending angles of the left curved plate 21 and the right curved plate 22 are both 150°, and the left curved plate 21 is provided with an upper connecting hole 211 and a lower connecting hole 212, The right curved plate 22 is provided with an upper connecting hole 221 and a lower connecting hole 222 . The upper connecting hole 211 of the left curved plate 21 and the upper connecting hole 221 of the right curved plate 22 are connected with the operating rod 1, and the lower connecting hole 212 of the left curved plate 21 and the lower connecting hole 222 of the right curved plate 22 are connected with the L-shaped clamp 3 bolts . The upper part of the L-shaped wire clamp 3 is provided with a connecting hole 31, which is connected with the Y-shaped connecting rod 2 by bolts; the middle part of the L-shaped wire clamp is provided with a limit hole 32 perpendicular to the long end of the L-shaped wire clamp 3, which is used to limit the pull ring type clamp The left and right movement of the pin 42; the inner sides of the L-shaped wire clamp 3 are provided with a rectangular groove 33 perpendicular to the bottom of the L-shaped wire clamp 3, so that the T-shaped block 5 can move up and down in the rectangular groove 33 without breaking away from the rectangular groove 33. Groove 33. The front portion of the ring-type bayonet pin 42 is triangular, which is convenient for the high-voltage wire 7 to be extruded into the L-shaped clamp 3. The middle part of the ring-type bayonet pin 42 is cylindrical and is enclosed within the first compression spring 41. The rear part of the pin 42 passes through the limiting hole 32 and is connected with the circular pull ring 421 . The T-block 5 upper end is a cuboid, and the cuboid can move up and down in the rectangular groove 33 perpendicular to the L-shaped wire clamp 3 bottom; The second compression spring 6 is sleeved outside the T-shaped block 5 , the upper end of the second compression spring 6 is in contact with the T-shaped block 5 , and the lower end of the second compression spring 6 is in contact with the L-shaped clamp 3 .

The working principle and process are:

The present invention is used for temporarily short-circuiting and grounding the high-voltage wire 7 in a power failure, so as to prevent the human body from being harmed by the induced voltage generated by a sudden call or adjacent high-voltage charged equipment. When working, the operator holds the operating lever 1, passes the operating lever 1 through the upper connecting hole 211 of the left curved plate 21 and the upper connecting hole 221 of the right curved plate 22 of the Y-shaped connecting rod 2, and lifts the entire L-shaped clamp through the operating lever 1 3. Make the high-voltage wire 7 forcefully squeeze the ring-shaped bayonet pin 42 along the triangular front part of the ring-shaped bayonet pin 42 . As the pressure of the high-voltage wire 7 on the pull-ring type bayonet 42 gradually increases, the pull-ring type bayonet 42 squeezes the first compression spring 41, so that the first compression spring 41 is compressed backward, and at the same time, due to the extrusion of the high-voltage wire 7 As a result, the T-shaped block 5 presses the second compression spring 6 downward until the high-voltage wire 7 completely enters between the ring-shaped bayonet pin 42 and the T-shaped block 5 . So far, the ring-type bayonet pin 42 has no pressure from the high-voltage wire 7, and the first compression spring 41 pushes the ring-type bayonet pin 42 back to its original position. Since the front part of the ring-type bayonet pin 42 is triangular, the high-voltage Conductor 7 is easy to squeeze into L-shaped clamp 3 and not easy to fall out, that is, high-voltage conductor 7 is locked between ring-drawing bayonet pin 42 and T-shaped stopper 5, and plays the effect of self-locking. After the high-voltage wire 7 is hooked up, use the small end cylinder 11 of the operating rod 1 to pass through and pull the circular pull ring 421 of the ring-type bayonet 42 outwards, so that the pull-ring type bayonet 42 is squeezed backward again. The first compression spring 41. At this time, the high-voltage wire 7 does not have the self-locking effect of the ring-type bayonet pin 42, and under the elastic restoring force of the second compression spring 6, the high-voltage wire 7 is ejected between the ring-type bayonet pin 42 and the T-shaped block 5 , to achieve unlocking.

Claims (4)

1. draw ring type bayonet lock self-locking wire end earthing clamp, comprises action bars, Y type connecting rod, L-type wire clamp, anti-shedding mechanism, T-shaped block and the second Compress Spring.Described action bars is made up of two sections of cylinders, and action bars is mounted by connecting hole mutually with Y type connecting rod; Described Y type connecting rod comprises left and right two bent plates, and the top of left and right two bent plates is mounted by connecting hole mutually with action bars, and the bottom of left and right two bent plates is connected by bolt with L-type wire clamp; The top of described L-type wire clamp is connected by bolt with Y type connecting rod, and the inside of L-type wire clamp is provided with groove and anti-shedding mechanism; Described anti-shedding mechanism is connected with L-type wire clamp is embedded, and anti-shedding mechanism comprises draw ring type bayonet lock and the first Compress Spring, and the first Compress Spring embeds in L-type wire clamp, and draw ring type bayonet lock contacts with T-shaped block under the effect of the first Compress Spring; Described second Compress Spring is enclosed within outside T-shaped block, and the second Compress Spring upper end contacts with T-shaped block, and the second Compress Spring lower end contacts with L-type wire clamp.

2. draw ring type bayonet lock self-locking wire end earthing clamp according to claim 1, it is characterized in that: described L-type wire clamp top is provided with connecting hole, be provided with the spacing hole perpendicular to L-type wire clamp long end in the middle part of L-type wire clamp, the inner both sides of L-type wire clamp are provided with the rectangular recess perpendicular to L-type wire clamp bottom.

3. draw ring type bayonet lock self-locking wire end earthing clamp according to claim 1, is characterized in that: described anti-shedding mechanism comprises the first Compress Spring and draw ring type bayonet lock two parts altogether.The front portion of draw ring type bayonet lock is triangular in shape, and the middle part of draw ring type bayonet lock is cylindrical, is enclosed within the first Compress Spring, and the rear portion of draw ring type bayonet lock connects circular draw ring.

4. draw ring type bayonet lock self-locking wire end earthing clamp according to claim 1, is characterized in that: described T-shaped block top is cuboid, is placed in the rectangular recess perpendicular to L-type wire clamp, and T-shaped block bottom is cylinder.