CN111525449A - T-connection power wire clamp installed in high-altitude electrified mode - Google Patents

Abstract

The invention discloses a T-connection power cord clamp for high-altitude live installation, comprising a T-connection clamp body, a clamp, a first insulating rod, and a second insulating rod; One end of the insulator is threaded through the screw hole at the bottom of the collet to connect with the cable pressure plate, the top of the first insulating rod is embedded in the bolt head of the positioning bolt, and the collet is provided with a terminal; the clamp includes an upper clamp plate, a lower clamp plate, a connecting plate, and a screw rod. The upper splint is hinged on the top of the connecting plate, and the lower splint is fixed at the bottom of the connecting plate. The top of the second insulating rod is threaded. The T-connected power cord clip of the present invention can branch and connect lines, provide mechanical tightening force and conduct current, pre-position the cables, enhance conductivity and connection reliability, and the present invention can realize installation without power failure. Effectively improve the reliability of power supply.

Description

A T-connected power cord clamp for high-altitude live installation

technical field

The invention relates to the technical field of power distribution overhead line connection, in particular to a T-connected power cord clamp for high-altitude live installation.

Background technique

In the daily operation mode of live fire connection of 10kV insulated overhead line, the traditional method can only adopt the method of power failure or borrow live work trucks for assistance, and manual operation is performed by the operator climbing up, because this live work method has certain safety. The power outage operation will also affect the normal operation of electricity, which is not only inefficient but also cannot meet the increasing demand for safe electricity consumption. For example, the patent with publication number CN210167729U provides a pre-twisted wire T-clamp, which is T-connected through the twisted wire, which enhances the firmness of the connection and increases the contact area between the clip and the wire, but this method requires a power outage operation. In addition, the screw connection is unstable and the work efficiency is low. Since the efficiency and safety of the insulating auxiliary tools used in live fire connection is an important indicator that is directly related to the life safety of the operator and the improvement of work efficiency, if the live fire connection operation without power failure is to be carried out, it is necessary to develop a safe and efficient method. Auxiliary T-connection tool.

SUMMARY OF THE INVENTION

In order to improve the use efficiency of power equipment and lines, and ensure the stable and orderly power supply service of the power system, the present invention provides a T-connected power cord clamp installed with high-altitude live power. It provides mechanical tightening force and conducts current, and at the same time pre-positions the cable, enhances electrical conductivity, and increases the reliability of connection.

The technical scheme of the present invention is:

A T-connection power cord clamp for high-altitude live installation, comprising a T-connection clamp body, a clamp, a first insulating rod, and a second insulating rod; the T-connection clamp body includes a clamp head, a cable pressure plate, and a positioning bolt, and the clamp The bottom of the head is provided with a screw hole, and one end of the positioning bolt is threaded through the screw hole at the bottom of the collet to connect with the cable pressure plate, and the top of the first insulating rod is embedded in the bolt head of the positioning bolt, so The cable pressing plate cooperates with the top of the collet to clamp the cable, and the collet is provided with a terminal for connecting the cable; the clamp includes an upper clamping plate, a lower clamping plate, a connecting plate and a screw rod, and the upper clamping plate It is hinged on the top of the connecting plate, the lower clamping plate is fixed on the bottom of the connecting plate, the end of the lower clamping plate is provided with a screw hole, and one end of the screw rod passes through the screw hole of the lower clamping plate and is provided with a circular The ball abuts on the bottom of the end of the upper clamping plate, the other end of the screw rod is provided with a connecting head and is threadedly connected to the top of the second insulating rod, and the upper clamping plate and the lower clamping plate form a clip structure for clamping all the Describe the T-clamp body.

When in use, first hook and fix the terminal lugs of the cable to be T-connected on the terminal, and then place the T-clamp body in the clip structure formed by the upper clamp and the lower clamp, and then rotate the second insulating rod to make The second insulating rod drives the screw to rotate, and the screw rotates to squeeze the upper splint, so that the opening of the clip structure formed by the upper splint and the lower splint shrinks, and clamps the T-clamp body, and then lifts the T-clamp body through the second insulating rod. To the installation position, hook the top of the collet on the cable, then lift the first insulating rod so that the top is aligned with the bolt head of the positioning bolt at the middle bottom of the collet, and then rotate the first insulating rod to make the The first insulating rod drives the positioning bolt to screw upward, the positioning bolt drives the cable pressing plate to lift and lower, and the cable pressing plate cooperates with the top of the clamp to clamp the cable, and the installation of the T-clamp can be completed. Finally, after the T-clamp is installed, remove the first insulating rod from the mounting bolt, and rotate the second insulator in the opposite direction at the same time, so that the clamp is loosened and the body of the T-clamp is no longer clamped, and the clamp can be removed.

Further, the top of the collet is a concave hook-shaped structure, the surface of the cable pressure plate is provided with an arc-shaped groove, and the arc-shaped groove of the cable pressure plate is aligned with the hook-shaped structure on the top of the collet. Clamp the cable. The hook-shaped design on the top of the collet and the arc-shaped groove of the cable pressure plate are easy to adapt to the shape of the cable, making it more stable to clamp.

Further, the inner surface of the hook-shaped structure on the top of the clip and the surface of the arc groove of the cable pressing plate are provided with anti-skid lines, and the anti-skid lines can increase the contact friction between the T-clamp body and the cable and enhance the stability. .

Further, the top of the first insulating rod is provided with a hexagonal sleeve matching the bolt head of the positioning bolt. The hexagonal sleeve is convenient for the first insulating plate and the bolt head of the positioning bolt to be quickly sleeved and screwed.

Further, the inner wall of the cylinder opening of the hexagonal sleeve is set as a conical inclined surface, which is convenient for guiding the bolt head to quickly align into the interior of the hexagonal sleeve.

Further, the T-clamp body is provided with pressing bolts, and two sides of the bottom of the collet are provided with screw holes, and one end of the two pressing bolts is threaded through the screw holes on both sides of the bottom of the collet respectively. The bottom of the cable pressing plate abuts and is symmetrically arranged on both sides of the positioning bolt. After the positioning bolt is tightened so that the cable pressing plate fits with the top of the collet to clamp the cable, the pressing bolt can be used to increase the pressing force, and at the same time, enhance the electrical conductivity and increase the reliability of the connection. The bolt head of the compression bolt is also suitable for the hexagonal sleeve on the top of the first insulating rod, and the compression bolt can be screwed through the hexagonal sleeve.

Further, the upper clamping plate is provided with a clamping groove adapted to the hook-shaped structure on the top of the clamping head.

Further, the lower clamping plate is provided with a U-shaped groove for clamping the positioning bolt, and baffles are provided at both ends of the opening of the U-shaped groove.

The upper clamp plate of the clamp is adapted to the top of the collet, and the lower clamp plate of the clamp is clamped on both sides of the positioning bolt, which is convenient for the cable to pass through and connect to the terminal. The baffle is used to limit the edge of the clamp. The clamp structure composed of the splint is convenient for the clamp to clamp the body of the T-clamp.

Further, the bottom of the first insulating rod is provided with a crank handle. When rotating the first insulating rod, for the convenience of use, one end of the crank is connected to the bottom of the insulating rod to increase the length of the lever arm, which saves effort during operation; at the same time, the other end of the crank is provided with a crank handle, which can be easily grasped and rotated by hand. .

Further, the terminal is provided with a locking nut for locking the cable. The through-holes of the cable lugs are hooked on the terminal posts, and are locked with locking nuts to complete the wiring.

The beneficial effects of the present invention are:

The clamp of the present invention can clamp and lift the T-clamp body to the target position, and prevent displacement during the locking process, and the T-clamp body can be placed on the cable without power failure; the T-clamp body of the present invention can be used for Branch connections are made to the lines, providing mechanical tightening force and conducting current, with specific firm connection performance; the present invention operates through the first insulating rod and the second insulating rod, and can quickly complete the installation of the T-clamp body, and the entire operation is fast and convenient , it can realize no power failure without directly contacting the live body; by using the T wire clip of the present invention, the labor intensity and safety risks of the construction site can be effectively reduced, and at the same time, it can be operated with electricity, and the T wire clip of the present invention is simple to use, convenient and portable, Promotion and practicability are strong.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is another angle schematic diagram of Fig. 1;

Fig. 3 is another angle schematic diagram of Fig. 1;

Figure 4 is a schematic structural diagram of a T-clamp body;

Fig. 5 is another angle schematic diagram of Fig. 4;

Fig. 6 is the structural representation of the clamp;

Fig. 7 is another angle schematic diagram of Fig. 6;

Fig. 8 is the structural representation that the first insulating rod is equipped with the crank handle;

9 is a schematic diagram of the T-connected power cord clamp of the present invention being installed on a cable;

In the figure: the first insulating rod 1, the second insulating rod 2, the collet 3, the cable pressing plate 4, the positioning bolt 5, the hexagonal sleeve 6, the terminal 7, the locking nut 8, the upper clamping plate 9, the lower clamping plate 10, the connection Plate 11 , screw 12 , ball 13 , connecting head 14 , pressing bolt 15 , clamping groove 16 , U-shaped groove 17 , baffle 18 , crank handle 19 .

Detailed ways

The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate the present embodiment, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable to the artisan that certain well-known structures and descriptions thereof may be omitted from the drawings. The positional relationships described in the drawings are only for exemplary illustration, and should not be construed as a limitation on the present patent.

Example 1:

As shown in Fig. 1-Fig. 9, a kind of high-altitude live installed T-connected power cord clamp, including T-clamp body, clamp, first insulating rod 1, second insulating rod 2; T-clamp body includes clip 3, The cable pressing plate 4 and the positioning bolt 5 are provided with a screw hole in the middle of the bottom of the collet 3. One end of the positioning bolt 5 is threaded through the screw hole at the bottom of the collet 3 and is connected to the cable pressing plate 4. The top of the first insulating rod 1 is provided with a screw hole. The hexagonal sleeve 6 matched with the bolt head of the positioning bolt 5 can be embedded into the bolt head of the positioning bolt 5 through the hexagonal sleeve 6. The top of the collet 3 is a concave hook-shaped structure, and the surface of the cable pressing plate 4 is provided with an arc. The arc-shaped groove of the cable pressing plate 4 cooperates with the hook-shaped structure on the top of the collet 3 to clamp the cable. The back of the collet 3 is provided with a terminal 7 for connecting the cable, and Tighten the locking nut 8 of the cable, the position of the terminal 7 corresponds to the position of the positioning bolt 5; the clamp includes an upper splint 9, a lower splint 10, a connecting plate 11, and a screw 12. The upper splint 9 is hinged on the top of the connecting plate 11, and the lower splint 10 is fixed on the bottom of the connecting plate 11, the end of the lower clamping plate 10 is provided with a screw hole, one end of the screw 12 passes through the screw hole of the lower clamping plate 10 and a ball 13 is provided to abut the bottom of the end of the upper clamping plate 9, and the other end of the screw 12 A connecting head 14 is provided for screw connection with the top of the second insulating rod 2, and the upper clamping plate 9 and the lower clamping plate 10 form a clamp structure for clamping the body of the T-clamp.

In this embodiment, the inner surface of the hook-shaped structure at the top of the clip 3 and the surface of the arc groove of the cable pressing plate 4 are provided with anti-skid lines, which can increase the contact friction between the T-clamp body and the cable, and enhance the stability.

Referring to FIG. 8 , in this embodiment, the inner wall of the cylinder opening of the hexagonal sleeve 6 is set as a conical slope, which is convenient for guiding the bolt heads to quickly align into the interior of the hexagonal sleeve 6 .

Referring to Fig. 1-Fig. 5, in this embodiment, the T-clamp body is provided with a compression bolt 15, and screw holes are provided on both sides of the bottom of the collet 3, and one end of the two compression bolts 15 is threaded out of the collet 3 respectively. The screw holes on both sides of the bottom are in contact with the bottom of the cable pressing plate 4 and are symmetrically arranged on both sides of the positioning bolt 5 . After the positioning bolt 5 is tightened so that the cable pressing plate 4 cooperates with the top of the collet 3 to clamp the cable, the pressing bolt 15 can be used to increase the pressing force, and at the same time, enhance the electrical conductivity and increase the reliability of the connection. The bolt head of the compression bolt 15 is also suitable for the hexagonal sleeve 6 on the top of the first insulating rod 1 , and the compression bolt 15 can be screwed through the hexagonal sleeve 6 .

Referring to FIGS. 6 and 7 , in this embodiment, the upper clamping plate 9 is provided with a clamping groove 16 adapted to the hook-shaped structure on the top of the clamping head 3 , and the lower clamping plate 10 is provided with a U-shaped groove 17 for clamping the positioning bolt 5 . , baffles 18 are provided at both ends of the opening of the U-shaped groove 17 . The upper clamp plate 9 of the clamp is adapted to the top of the collet 3, the lower clamp plate 10 of the clamp is clamped on both sides of the positioning bolt 5 through the U-shaped groove 17, and at the same time, it is convenient for the cable to pass through and connect with the terminal 7, and the baffle plate 18 is used to The limit of the edge of the collet 3, and the clip structure composed of the upper clamping plate 9 and the lower clamping plate 10 are convenient for the clamp to clamp the body of the T terminal clamp.

Referring to FIG. 8 , in this embodiment, the bottom of the first insulating rod 1 is provided with a crank handle 19 . When rotating the first insulating rod 1, for the convenience of use, one end of the crank is connected to the bottom of the insulating rod to increase the length of the lever arm, so as to save effort during operation; at the same time, the other end of the crank is provided with a crank handle, which can be easily grasped and shaken by hand rotate.

In this embodiment, in order to increase the height of the freely adjustable lift, the first insulating rod 1 and the second insulating rod 2 can be replaced with telescopic insulating rods.

The working principle of the present invention is as follows:

When in use, first hook and fix the terminal lugs of the cable to be T-connected on the terminal 7, and use the lock nut 8 to lock the connection to complete the connection, and then place the T-clamp body on the upper clamp plate 9 and the lower clamp plate 10 to form In the clamp structure, the second insulating rod 2 is then rotated, so that the second insulating rod 2 drives the screw rod 12 to rotate, and the screw rod 12 rotates through the ball 13 to squeeze the upper clamp plate 9, so that the clamp structure formed by the upper clamp plate 9 and the lower clamp plate 10 is completely closed. The opening is contracted, and the T-clamp body is clamped, and then the T-clamp body is lifted to the installation position through the second insulating rod 2, so that the top of the clamp 3 is hooked on the cable, and then the first insulating rod 1 is lifted Align the hexagonal sleeve 6 on the top with the bolt head of the positioning bolt 5 at the middle bottom of the collet 3, and then put on the first insulating rod 1 by hand through the crank handle 19, so that the first insulating rod 1 drives the positioning bolt 5 Screw up, the positioning bolt 5 drives the cable pressing plate 4 to lift, and the cable pressing plate 4 cooperates with the top of the clamp 3 to clamp the cable, and the installation of the T-clamp can be completed. In order to further increase the pressing force, make the first The hexagonal sleeve 6 at the top of the insulating rod 1 is separated from the positioning bolt 5, so that it is aligned with the pressing bolts 15 on both sides of the positioning bolt 5 to be inserted, and the first insulating rod 1 is rotated by the crank handle 19 again to make the first insulating rod 1. The rod 1 tightens the pressing bolts 15 on both sides in turn, so that it further tightens the two sides of the cable pressing plate 4, strengthens the pressing force, and at the same time enhances the electrical conductivity and increases the reliability of the connection. Finally, after the T terminal clamp is installed, disengage the hexagonal sleeve 6 on the top of the first insulating rod 1 from the pressing bolt 15 and remove it, and at the same time rotate the second insulating rod 2 in the opposite direction, so that the clamp is loosened and no longer has any effect on the T terminal. After clamping the wiring clamp body, the clamp can be removed to complete the quick installation.

The clamp of the present invention can clamp and lift the T-clamp body to the target position, and prevent displacement during the locking process, so that the T-clamp body can be placed on the cable without power failure; the T-clamp body of the present invention can be used for The branch connection is performed on the line to provide mechanical tightening force and conduct current, with specific firm connection performance; the present invention operates through the first insulating rod and the second insulating rod, and can quickly complete the installation of the T-clamp body, and the entire operation is fast and convenient , can realize no direct contact with the live body without power failure; by using the T-connected power cord clip of the present invention, the labor intensity and safety risks on the construction site can be effectively reduced, and at the same time, live operation can be performed, and the T-connected power cord clip of the present invention is simple and convenient to use. Portable, popular and practical.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. A high-altitude live T-connected power cord clamp is characterized in that, comprising a T-clamp body, a clamp, the first insulating rod, the second insulating rod; the T-clamp body comprises a clamp, a cable pressure plate, A positioning bolt, the bottom of the collet is provided with a screw hole, one end of the positioning bolt is threaded through the screw hole at the bottom of the collet to connect with the cable pressing plate, and the top of the first insulating rod is embedded in the positioning bolt The bolt head of the bolt, the cable pressing plate cooperates with the top of the collet to clamp the cable, and the collet is provided with a terminal for connecting the cable; the clamp includes an upper clamping plate, a lower clamping plate, a connecting plate, screw, the upper splint is hinged on the top of the connecting plate, the lower splint is fixed on the bottom of the connecting plate, the end of the lower splint is provided with a screw hole, and one end of the screw penetrates the bottom of the lower splint. A screw hole is provided with a ball abutting against the bottom of the end of the upper clamp plate, the other end of the screw rod is provided with a connecting head to be threadedly connected to the top of the second insulating rod, and the upper clamp plate and the lower clamp plate form a clip The structure is used to clamp the T-clamp body. 2 . The T-connection power cord clamp for high-altitude live installation according to claim 1 , wherein the top of the clamp is a concave hook-shaped structure, and the surface of the cable pressure plate is provided with an arc shape. 3 . The arc-shaped groove of the cable pressing plate cooperates with the hook-shaped structure on the top of the clamp to clamp the cable. 3 . The T-connected power cord clip for high-altitude live installation according to claim 2 , wherein the inner surface of the hook-shaped structure on the top of the clip and the surface of the arc-shaped groove of the cable pressing plate are provided with 3 . 3 . Anti-slip pattern. 4 . The T-connection power cord clamp for high-altitude live installation according to claim 1 , wherein the top of the first insulating rod is provided with a hexagonal sleeve matching the bolt head of the positioning bolt. 5 . 5 . The T-connected power cord clamp for high-altitude live installation according to claim 4 , wherein the inner wall of the barrel opening of the hexagonal sleeve is set as a conical inclined surface. 6 . 6. The T-connection power cord clamp for high-altitude live installation according to claim 1, wherein the T-connection clamp body is provided with a compression bolt, and two sides of the bottom of the clamp are provided with screw holes, and two One end of each of the pressing bolts is respectively threaded through the screw holes on both sides of the bottom of the collet, abuts against the bottom of the cable pressing plate, and is symmetrically arranged on both sides of the positioning bolt. 7 . The T-connection power cord clamp for live installation at high altitude according to claim 2 , wherein the upper clamp plate is provided with a clamp groove adapted to the hook-shaped structure on the top of the clamp head. 8 . 8 . The T-connection power cord clamp for high-altitude live installation according to claim 1 , wherein the lower clamp plate is provided with a U-shaped groove for clamping the positioning bolt, and the opening of the U-shaped groove is provided. 9 . There are baffles at both ends. 9 . The T-connected power cord clip for live installation at high altitude according to claim 1 , wherein a crank handle is provided at the bottom of the first insulating rod. 10 . 10 . The T-connected power cord clamp for live installation at high altitude according to claim 1 , wherein the terminal is provided with a locking nut for locking the cable. 11 .

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