CN104795771A - Puncture clamp for ground potential live working of insulated wire line connection - Google Patents

Abstract

A puncture clamp for ground potential live work connected with insulated wires, comprising an upper body of the clamp and a lower body of the clamp matched with the upper body of the clamp. There are upper piercing teeth in the main wire slot, and a wire limiting slot opposite to the main wire slot is provided on the lower body of the clamp. The lower piercing teeth are arranged in the wire limiting slot, and the main wire is fastened by the upper body and the lower body. The puncture is completed, and the auxiliary line is fastened by the conventional pressure plate set on the upper body. The use of puncture to realize current flow and conduction ensures the good sealing performance of the insulated wire insulation, realizes safe and fast ground potential live operation to lap the branch line, solves the problem of difficult peeling of the insulated wire, reduces the labor intensity of the operation, and solves the long-term problem. Since the old mode that this operation must be peeled, the work efficiency has been increased by 50%, and the problem of waterproof and sealing caused by the stripping of insulated wires has been solved.

Description

Piercing clamps for ground potential live working of insulated conductors

technical field

The invention relates to a construction tool for electric power engineering, in particular to a puncture clamp for ground potential live work connected with insulated conductor lines.

Background technique

With the development of society, the network of distribution lines has proliferated, and the channel crisis has become the bottleneck of the development of the power grid. In order to solve the problem of line channels, the use of insulated wires effectively solves the problems of channel congestion and potential safety hazards. In the actual engineering construction process, the insulation layer of the wires needs to be stripped for crimping, jumper wires, and branch line connections. The thickness of the insulation layer of the 10kv insulated wire is about 4mm, and the thickness of the insulation layer of the 20kv insulated wire is about 6mm. Conventional stripping tools used in engineering construction include rotary type and conventional hand pliers type. The insulation layer is stripped during the operation, which is labor-intensive, labor-intensive and inefficient, and the accuracy is difficult to control. After the insulation layer is stripped, it is easy to In the case of wire damage, especially when the insulation layer is stripped in cold winter, the hardness of the insulation layer increases and the stripping is more difficult. At present, all kinds of stripping devices have common problems such as high operating intensity, low precision, and easy damage to the wires. The ground potential stripping is used to connect the branch lines with electricity, which directly causes the wires to not be well sealed, and rainwater immersion into the wires is not conducive safe operation.

Contents of the invention

The technical problem to be solved in the present invention is to address the deficiencies of the prior art, and propose a puncture clamp for ground potential live work for connecting insulated wire lines to safely and quickly realize the live operation of ground potential live overlapping branch lines.

The technical problem to be solved by the present invention is achieved through the following technical solutions. A puncture clamp for live work at ground potential connected to an insulated wire circuit is characterized in that it includes an upper body of the clamp and a wire that cooperates with the upper body of the clamp. Clamp the lower body, the front of the upper body of the clamp is provided with a main line slot with the opening facing down, and the main line slot is provided with upper piercing teeth, and the lower body of the clamp is provided with a wire limit slot opposite to the main line slot, and the wire There are lower piercing teeth in the limit slot, first screw holes and second screw holes are respectively set on both sides of the main line card slot, and the lower body of the clamp is provided with corresponding first screw holes and second screw holes. The first fastening hole and the second fastening hole, the first fastening bolt and the second fastening bolt respectively pass through the first fastening hole and the second fastening hole to connect with the first screw hole and the second screw hole to realize The cohesion between the upper body of the wire clip and the lower body of the wire clip, through the upper piercing teeth and the lower piercing teeth to pierce the outer skin of the main wire to achieve good contact with the metal part of the main wire, at the ends of the first fastening bolt and the second fastening bolt All are provided with a torque nut, the middle part of the torque nut is provided with a horizontal positioning rod for rotation, and the back of the upper body of the wire clamp is provided with a secondary wire fixing mechanism. The upper body of the wire clamp close to the first screw hole is provided with a limit plate to prevent the lower body of the wire clamp from swinging left and right. There is a hook mechanism between the second fastening hole and the second fastening bolt. When installing the wire clamp, The first fastening bolt connects the upper body of the wire clamp and the lower body of the wire clamp, and the second fastening bolt connects with the second fastening hole through the hook mechanism to ensure that the main wire feeding is formed between the upper body of the wire clamp and the lower body of the wire clamp. Entrance.

The technical problem to be solved by the present invention can be further realized through the following technical solutions. The auxiliary wire fixing mechanism includes a fixing plate for installing and fixing the auxiliary wire on the upper body of the wire clip. There are threaded holes for fastening on both sides of the wire groove, and the auxiliary line pressing plate is installed in cooperation with the fixing plate. There is a protruding groove in the middle of the auxiliary line pressing plate, and there are two bolt fastening holes on the auxiliary line pressing plate. The fixing plate and the auxiliary line pressing plate cooperate to complete the installation and fixation of the auxiliary line through two bolts.

The technical problem to be solved by the present invention can be further realized by the following technical solution, the top of the upper body of the cable clamp is provided with a positioning groove for controlling the operating rod.

The technical problem to be solved by the present invention can be further realized through the following technical solutions, in which anti-loosening washers are installed on the first fastening bolt and the second fastening bolt.

The technical problem to be solved by the present invention can be further realized by the following technical solutions, the hooking mechanism is an internal thread arranged in the second fastening hole and matched with the second fastening bolt.

Compared with the prior art, the present invention is fastening the main line by piercing the upper body and the lower body, and the auxiliary line is fastened by the conventional pressure plate provided on the upper body. When operating, first complete the conventional installation of the auxiliary line, then use the fixing fixture at the end of the insulating operating rod to insert the torsion bolt, and then lift the wire clamp and use the opening of the wire clamp to insert the wire, and the operators cooperate with each other to rotate the operating rod to tighten. Torsion bolt, when the torque reaches the specified value, the torsion bolt breaks, and at this time the puncture has been in close contact with the wire metal to achieve the purpose of electrical conduction. The use of puncture to realize current flow and conduction ensures the good sealing performance of the insulated wire insulation, realizes safe and fast ground potential live work to lap the branch line, solves the problem of difficult peeling of the insulated wire, reduces the labor intensity of the operation, and solves the long-term problem. Since the old mode that this operation must be peeled, the work efficiency has been increased by 50%, and the waterproof and sealing problem caused by the stripping of the insulated wires has been solved.

Description of drawings

Fig. 1 is a structural diagram of the present invention;

FIG. 2 is a side view of FIG. 1 .

Detailed ways

A puncture clamp for ground potential live work connected with insulated wires, comprising an upper body of the clamp and a lower body of the clamp matched with the upper body of the clamp. There are upper piercing teeth in the main wire slot, and wire limit slots opposite to the main wire slot are arranged on the lower body of the wire clip. There are a first screw hole and a second screw hole, the lower body of the clamp is provided with a first fastening hole and a second fastening hole corresponding to the first screw hole and the second screw hole, the first fastening bolt, the second The fastening bolts pass through the first fastening hole and the second fastening hole respectively to connect with the first screw hole and the second screw hole, so as to realize the cohesion between the upper body of the wire clamp and the lower body of the wire clamp. The barbed teeth puncture the outer skin of the main line to achieve good contact with the metal part of the main line. Torsion nuts are installed at the ends of the first fastening bolt and the second fastening bolt, and a horizontal positioning rod for rotation is provided in the middle of the torsion nut. , There is a secondary wire fixing mechanism on the back of the main body of the wire clamp. The upper body of the wire clamp close to the first screw hole is provided with a limit plate to prevent the lower body of the wire clamp from swinging left and right. There is a hook mechanism between the second fastening hole and the second fastening bolt. When installing the wire clamp, The first fastening bolt connects the upper body of the wire clamp and the lower body of the wire clamp, and the second fastening bolt connects with the second fastening hole through the hook mechanism to ensure that the main wire feeding is formed between the upper body of the wire clamp and the lower body of the wire clamp. Entrance.

The auxiliary line fixing mechanism includes a fixing plate for installing and fixing the auxiliary line on the main body of the wire clamp. The fixing plate is provided with a wire groove in an up and down direction, and both sides of the wire groove are provided with threaded holes for fastening, which are connected with the fixing plate. The plate is matched to realize the installation of the secondary line pressure plate. There is a protruding groove in the middle of the secondary line pressure plate, and there are two bolt fastening holes on the secondary line pressure plate. The fixing plate and the secondary line pressure plate cooperate to complete the installation and fixing of the secondary line. .

The top of the upper body of the cable clamp is provided with a positioning groove for controlling the operating rod. Locking washers are installed on the first fastening bolt and the second fastening bolt. The hooking mechanism is an internal thread arranged in the second fastening hole and matched with the second fastening bolt.

as the picture shows:

A puncture clamp for live work used to solve the connection of ground potential insulated wires. Through the different installation and fixing methods of the main line and the auxiliary line, the construction process is simplified, the work intensity of the construction personnel is reduced, and the difficulty of installation and construction is reduced. Through the puncture The installation of the main line avoids the stripping operation of the insulated wire, and the auxiliary line is installed in advance with bare hands in the ground potential state, which solves the difficult problem of ground potential stripping. For a long time, the problem that the insulation vehicle for live work cannot be connected and installed with insulated wires due to terrain and environment constraints has been effectively solved.

It includes the combination of the torsion nut 7 and the fastening bolts 5, 19, and the connection of the torsion nut and the fastening bolt is combined, which is beneficial to production and processing. The middle part of the torque nut is provided with a horizontal positioning rod 8 for the rotating operating rod, which is used for the fixed limit of the rotating operating rod.

It includes a lower body 18 of the wire clip, and the lower body 18 of the wire clip is provided with a wire limiting groove 16, which can ensure that the wire is in the correct position and ensure the quality of the puncture installation. The inner surface of the wire limit groove 16 is provided with the lower puncture teeth 17, and the two ends of the lower body of the wire clamp are provided with the first fastening hole 6 and the second fastening hole 20. When installing, the first fastening bolt 5 and the second fastening bolt 19 is fastened by cooperating with the first screw hole 3 and the second screw hole 15 of the puncture upper body through this hole, so as to ensure good contact between the puncture and the metal part of the wire.

The main thread slot 9 of the upper body 14 of the wire clamp is provided with an upper piercing tooth 4, and the upper body of the wire clamp is provided with a dovetail clamping groove 1 for fastening the fastening bolts, and the clamping groove is used for connecting with the operating lever. Fixed, so that the operator will install the clamp of the auxiliary line, and use the clamping lever to cooperate with the dovetail clamping groove to realize various adjustment and control requirements for the contact between the clamp and the main line conductor, and ensure correct tightening during the fastening process. Installation quality. The upper body 14 of the wire clamp is provided with a main wire draw slot 9, which can ensure that the wire is in the correct position and ensure the quality of the puncture installation. The inner surface of the main line slot is provided with upper piercing teeth 4, and the upper body of the wire clamp is also provided with a limit plate 21 for limiting the swing of the lower body 18 of the wire clamp. Opening, so only the first fastening bolt connects the upper and lower bodies, when operating with the operating lever, the lower body 18 of the wire clip will swing left and right, and the limiting plate 21 can realize the left and right swing of the lower body 18. During installation, the first fastening bolt 5 and the second fastening bolt 19 are fastened by cooperating with the first fastening hole 6 and the second fastening hole 20 at the two ends of the lower body 14 and the upper body screw hole 15 of the clamp. During the fastening process, the first and second bolts should be tightened crosswise and sequentially to ensure good contact between the puncture and the metal part of the wire.

The upper body 14 of the clamp is provided with a fixed plate 2 for installing and fixing the auxiliary line. The fixed plate 2 is provided with a wire groove in an up and down direction, and both sides of the groove are provided with threaded holes for fastening. What cooperates with it to realize installation is the auxiliary line pressing plate 12, and the middle part of the auxiliary line pressing plate 12 is provided with a protruding groove 11, which cooperates with the groove to ensure the installation quality of the auxiliary line. Two bolt fastening holes 13 are provided on the auxiliary line pressing plate 12, and the fixing plate 2 cooperates with the auxiliary line pressing plate 12 to complete the installation function of the auxiliary line.

Through the application of puncture, the long-standing problem of the difficulty of stripping live insulated wires is solved. The use of puncture to realize current conduction ensures the good sealing performance of the insulation of insulated wires, and solves the problem of difficult sealing of insulated wires due to peeling. The cancellation of the stripping process greatly reduces the labor intensity of construction, avoids the undesired phenomenon of accidentally injuring the wires during the stripping process, and solves the passive situation that the insulation vehicle cannot perform live work due to the influence of the terrain and other operating environments. Through the new type of clamp The application further reduces power outages for users and provides a strong guarantee for the on-time operation of new lines for enterprises. It is also an innovative application for live work.

Claims (5)

1. A puncture clamp for ground potential live work connected with an insulated wire line, characterized in that: it includes an upper body of the clamp and a lower body of the clamp that cooperates with the upper body of the clamp, and the front of the upper body of the clamp is provided with an opening facing The lower main line card slot, the main line card slot is provided with upper piercing teeth, the lower body of the clamp is provided with a wire limit slot opposite to the main line card slot, and the wire limit slot is provided with a lower piercing tooth. Both sides of the slot are respectively provided with a first screw hole and a second screw hole, and the lower body of the clamp is provided with a first fastening hole and a second fastening hole corresponding to the first screw hole and the second screw hole. The fastening bolt and the second fastening bolt respectively pass through the first fastening hole and the second fastening hole to connect with the first screw hole and the second screw hole to realize the cohesion of the upper body of the wire clip and the lower body of the wire clip. The puncture teeth and the lower puncture teeth puncture the outer skin of the main line to achieve good contact with the metal part of the main line. Torsion nuts are arranged at the ends of the first fastening bolt and the second fastening bolt, and a middle part of the torsion nut is provided. The positioning rod for horizontal rotation is equipped with a secondary wire fixing mechanism on the back of the upper body of the wire clamp. The upper body of the wire clamp near the first screw hole is downwardly provided with a limit plate to prevent the lower body of the wire clamp from swinging left and right. The second fastening A hooking mechanism is provided between the hole and the second fastening bolt; the first fastening bolt connects the upper body of the wire clamp and the lower body of the wire clamp, and the second fastening bolt connects with the second fastening hole through the hooking mechanism. Ensure that the main line feeding port is formed between the upper body of the clamp and the lower body of the clamp when installing the clamp. 2. The puncture clamp for ground potential live work connected with insulated wire lines according to claim 1, wherein the auxiliary line fixing mechanism includes a fixing plate for installing and fixing the auxiliary line on the main body of the line clamp, There are wire grooves in the upper and lower directions on the fixing plate, and there are threaded holes for fastening on both sides of the wire groove. The auxiliary wire pressing plate is installed in cooperation with the fixing plate. There is a protruding groove in the middle of the auxiliary wire pressing plate, and the auxiliary wire pressing plate There are two bolt fastening holes on the top, and the fixing plate and the auxiliary line pressing plate cooperate with the two bolts to complete the installation and fixation of the auxiliary line. 3. The puncture clamp for ground potential live work connected with insulated conductor lines according to claim 1, characterized in that: the top of the body of the clamp is provided with a positioning groove for controlling the operating rod. 4. The piercing clamp for ground potential live work connected with insulated conductor lines according to claim 1, characterized in that: anti-loosening washers are installed on the first fastening bolt and the second fastening bolt. 5. The puncture clamp for ground potential live work connected with insulated wire lines according to claim 1, characterized in that: the hooking mechanism is an inner clamp arranged in the second fastening hole and matched with the second fastening bolt. thread.