CN110165601B - Distribution lines live working is from locking-type anchor clamps - Google Patents

Abstract

The invention discloses a self-locking clamp for live operation of a distribution line, and aims to provide a self-locking clamp for live operation of a distribution line with high operating efficiency. It includes a C-shaped clamp body, a self-locking pressure plate, a screw rod that is arranged vertically, threaded on the lower end of the clamp body, and has a lifting ring at the lower end, a pressing plate hinged to the upper end of the screw rod and located in the opening of the clamp body, and a fixed device. A hanging hook on the clamp body opposite to the open side of the clamp body; the self-locking pressure plate is J-shaped, and the self-locking pressure plate includes a curved portion and a guide portion provided on one side of the curved portion; the self-locking pressure plate passes through A pin with a torsion spring is connected to the clamp body. When the self-locking pressure plate is not subject to external force, the self-locking pressure plate is in an open state, and the end of its guide part is away from the lower end of the opening side of the clamp body; when the self-locking pressure plate is in a closed state, the self-locking pressure plate is in a closed state. The curved portion of the self-locking pressure plate overlaps the curved portion of the upper end of the clamp body, and the end of the guide portion of the self-locking pressure plate overlaps the lower end of the opening side of the clamp body.

Description

A self-locking clamp for live operation of distribution lines

Technical field

The invention relates to the technical field of electric power maintenance equipment, and in particular to a self-locking clamp for live operation of distribution lines.

Background technique

At present, in the live operation of distribution networks around the world, Japan has achieved 100% insulating pole operation in distribution network live operation projects, and France has achieved 90% insulating pole operation in distribution network live operation projects. Domestic live work in the distribution network is mainly based on the insulating gloves working method inside the insulating bucket arm, supplemented by the insulating pole working method. Among them, the insulating pole working method uses tie wires to overlap the drainage wires. The wires are difficult to tighten and winding. High. The use of parallel groove clamps, puncture clamps, C-type clamps, and J-type clamps requires extremely high skill levels of workers, is extremely difficult, and is time-consuming and labor-intensive, increasing the risk of electric shock for workers. .

The gun-type operating lever is an easy-to-operate insulated operating handle introduced from the United States in recent years. It is mainly used for operating American electrical equipment. The gun-type operating rod can clamp most American-style electrical equipment operating accessories, install American-style grounding clamps and jumper clamps, etc. Use the switch on the handle to push the built-in clamping mouth. After clamping, retract the clamping mouth to firmly fix the accessory on the top of the operating rod. When releasing, just push it out. It is easy to open and close, and the operation and positioning are reliable and the operation is smooth. easy. The insulated drainage wires for live operation in the existing distribution network cannot be installed using insulated operating rods. The development of a self-locking special clamp that uses a gun-type operating rod to install insulated drainage wires will solve the problem of existing insulated drainage wires using insulating rods to install, while reducing the intensity of the workers' work and improving the safety of the operations.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a self-locking clamp for live operation of distribution lines that can improve operating efficiency and operating safety.

In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

A self-locking clamp for live operation of distribution lines. When the clamp is operated, its upper end is called the upper end, and the opposite end is called the lower end. It includes a clamp body in the shape of C, hinged to the upper end of the opening side of the clamp body. The self-locking pressure plate is a screw rod that is arranged vertically, threaded on the lower end of the clamp body, and has a lifting ring at the lower end. It is hinged to the upper end of the screw rod and is located in the opening of the clamp body. The opening side is opposite to the hanging hook; the self-locking pressure plate is J-shaped, and the self-locking pressure plate includes a bending part, and a guide part provided on one side of the bending part; the self-locking pressure plate is connected by a pin with a torsion spring and a clamp Specifically connected, when the self-locking pressure plate is not subject to external force, the self-locking pressure plate is in an open state, and the end of its guide portion is away from the lower end of the opening side of the clamp body; when the self-locking pressure plate is in a closed state, the curved portion of the self-locking pressure plate is in contact with the lower end of the opening side of the clamp body. The curved portion of the upper end of the clamp body overlaps, and the end of the guide portion of the self-locking pressure plate overlaps the lower end of the opening side of the clamp body.

Preferably, the upper end of the pressing plate is provided with a groove.

Preferably, the side wall of the pressing plate is guided and matched with the inner wall of the clamp body.

Preferably, the clamp body is provided with a triangular-shaped bracket connected to the thread hook.

Preferably, the lower end of the clamp body is provided with a lower boss.

Preferably, the wire hook and the bracket are connected by bolts.

Preferably, the thread hanging hook is in a horseshoe shape.

Compared with the prior art, the present invention has the following advantages:

The invention is used in conjunction with the gun-type operating lever, which is not only easy to operate, safe and reliable, but can greatly reduce the labor intensity of workers and ensure the safety of workers.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a front view of the present invention.

Figure 2 is a perspective view of the present invention.

Figure 3 is a perspective view of the present invention from another perspective.

Figures 4 and 5 are schematic flow diagrams of the present invention used in conjunction with a gun-type operating lever.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without exerting creative efforts fall within the scope of protection of the present invention. In the following description, in order to clearly demonstrate the structure and working mode of the present invention, the accompanying drawings will be used as a reference and many directional words will be used for description. However, "front", "back", "left", "right", Words such as "upper" and "lower" are to be understood as convenient terms and should not be understood as limiting terms.

The self-locking clamp for live operation of distribution lines is shown in Figure 1-3. When the clamp is operated, the end located at the upper part is called the upper end, and the other end opposite to it is called the lower end; it includes a clamp body 2 in the shape of C, which is hinged to the clamp. The self-locking pressure plate 3 at the upper end of the opening side of the concrete 2 is arranged vertically, screwed to the lower end of the clamp body 2, and has a screw 1 with a lifting ring 11 at the lower end. It is hinged to the upper end of the screw 1 and is located in the opening of the clamp body 2. The pressing plate 3 9, and a wire hook 10 fixedly provided on the clamp body 2 and opposite to the open side of the clamp body 2; the self-locking pressure plate 3 is J-shaped, and the self-locking pressure plate 3 includes a curved portion 3a, and is provided on the curved portion 3a The guide part 3b on one side; the self-locking pressure plate 3 is connected to the clamp body 2 through the pin 12 with a torsion spring (not shown in the figure) (the installation method of the torsion spring is basically the same as the connection method of the keychain), and the self-locking pressure plate 3 is automatically When the locking pressure plate 3 is not subject to external force, the self-locking pressure plate 3 is in an open state, and the end of its guide portion is away from the lower end of the opening side of the clamp body 2; when the self-locking pressure plate 3 is in a closed state, the bent portion of the self-locking pressure plate 3 It coincides with the curved portion of the upper end of the clamp body 2 , and the end of the guide portion of the self-locking pressure plate 3 overlaps with the lower end of the opening side of the clamp body 2 .

As a further improvement, the upper end of the pressing plate 9 is provided with a groove 4, which can effectively position and fix the wires. The groove can be in the shape of an arc or a semicircle, etc.

As a further improvement, the side wall of the pressing plate 9 cooperates with the inner wall guide of the clamp body 2. Specifically, a guide is provided on the longer side of the inner wall of the clamp body 2 to improve the stability of the movement of the pressing plate 9. Obviously it doesn't need to be set.

As a further improvement, the clamp body 2 is provided with a triangular-shaped bracket 8 connected to the thread hook 10. This bracket can also adopt other shapes to facilitate the connection of the thread hook 10 and the connection between the thread hook 10 and the corresponding equipment. The connection shall prevail. The thread hook 10 and the bracket are connected through bolts 7. Obviously, other connectors can also be used for connection.

As a further improvement, the lower end of the clamp body 2 is provided with a lower boss 5. The lower boss 5 can be placed in the top groove 19 of the shooting gun operating lever, so that the lower boss 5 is in contact with the shooting gun operating lever. The top groove 19 fits closely to improve the convenience of operation.

In this implementation, the thread hanging hook 10 adopts a horseshoe shape for easy hooking, and obviously can also be D-shaped or circular, etc.

The working process is as follows:

The installation process of the present invention is shown in Figures 4 and 5. When installing the horseshoe-shaped clamp of the present invention, first, as shown in a in Figure 4, push the built-in clamp mouth 18 through the switch 17 on the handle of the gun-type operating lever 16 Full release rollout. Hook the lifting ring 11 at the lower end of the screw rod 1 with the opened clamp mouth 18, retract the built-in clamp mouth with the switch 17 on the handle of the shooting gun operating rod, and place the lower boss 5 at the lower end of the clamp body 2 on the shooting gun operating rod. In the top groove 19, the lower boss 5 is closely matched with the top groove 19 of the shooting gun operating lever to fix the horseshoe-shaped clamp on the top of the shooting gun operating lever. Subsequently, the installed insulated drain wire hook 22 is placed in the horseshoe-shaped wire hanging hook 10 of the self-locking fixture, and the insulated drain wire handle 21 is tightened so that the insulated drain wire hook 22 and the cylinder of the horseshoe-shaped wire hanging hook 10 are Press and hold the insulated drain wire 20 firmly on the shaped surface, and raise the clamped insulated drain wire to be overlapped together with the horseshoe-shaped clamp to the overlapping conductor 23, as shown in b in Figure 4. Put the wire 23 at the overlapping point into the opening of the clamp body 2 and pull it downward. The wire pushes the curved portion 3a of the self-locking pressing plate 3 to rotate inward under the action of the pulling force. The self-locking pressing plate 3 simultaneously rotates its lower end and the clamping body 2 The lower end of the open side is overlapped and closed. Open the first position of the switch 17 on the handle of the shooting gun operating rod. The built-in clamp is half protruded and is in a closed state. Turn the shooting gun operating rod to drive the lifting ring 11 at the lower end of the screw rod 1 to rotate. , push the pressing plate 9 upward, the groove surface of its top surface presses upward against the conductor that stabilizes the overlapping point, and presses the conductor and the curved part of the self-locking pressure plate 3 upward to ensure that the lower end of the guide part of the self-locking pressure plate 3 It is overlapped with the lower end of the open side of the clamp body 2 to reliably close the open side of the clamp body 2, preventing the self-locking clamp from falling off the wire 23 during operation, ensuring the safety of the operator, and reducing the labor intensity of the operator, as shown in c in Figure 5 Show. After installing the self-locking clamp, open all the switches 17 on the handle of the gun-type operating rod, release all the built-in clamps, open the clamps and disengage the lifting ring 11 at the lower end of the screw 1, and the self-locking clamp is installed. As shown in d in Figure 5.

After power outage maintenance or live maintenance of the distribution network is completed, hook the lifting ring 11 at the lower end of screw 1 with the clamp on the top of the gun-type operating rod, unscrew the lifting ring 11 at the lower end of screw 1 in the opposite direction, and push the self-locking clamp upwards , under the action of the torsion spring, the wire self-locking pressure plate 3 opens outwards, and the opening side of the clamp body 2 is opened, and the self-locking clamp can be removed from the wire 23.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (5)

1. A self-locking clamp for live operation of distribution lines. When the clamp is operated, one end located at the upper part is called the upper end, and the other end opposite to it is called the lower end. It is characterized in that: it includes a clamp body in the shape of C, hinged to A self-locking pressure plate at the upper end of the opening side of the clamp body, a screw rod that is arranged vertically, threaded on the lower end of the clamp body, and has a lifting ring at the lower end, a pressing plate that is hinged to the upper end of the screw rod and is located in the opening of the clamp body, and is fixedly installed on the clamp body Specifically, there is a wire hook opposite to the opening side of the clamp body; the self-locking pressure plate is J-shaped, and the self-locking pressure plate includes a curved portion, and a guide portion provided on one side of the curved portion; the self-locking pressure plate has a twist The pin of the spring is connected to the clamp body. When the self-locking pressure plate is not subject to external force, the self-locking pressure plate is in an open state, and the end of its guide part is away from the lower end of the opening side of the clamp body; when the self-locking pressure plate is in a closed state, the self-locking pressure plate is in a closed state. The curved portion of the locking plate coincides with the curved portion of the upper end of the clamp body, and the end of the guide portion of the self-locking plate overlaps the lower end of the opening side of the clamp body; the side wall of the pressing plate is guided and matched with the inner wall of the clamp body; The clamp body is provided with a triangular-shaped bracket connected to the thread hook. 2. The self-locking clamp for live operation of distribution lines according to claim 1, characterized in that: the upper end of the pressing plate is provided with a groove. 3. The self-locking clamp for live operation of distribution lines according to claim 1 or 2, characterized in that: the lower end of the clamp body is provided with a lower boss. 4. The self-locking clamp for live operation of distribution lines according to claim 1 or 2, characterized in that: the wire hook and the bracket are connected by bolts. 5. The self-locking clamp for live operation of distribution lines according to claim 1 or 2, characterized in that: the wire hanging hook is in a horseshoe shape.