CN103457213A - Wire clamp body of ground potential operation non-bearing connection wire clamp - Google Patents

Abstract

The invention provides a clamp main body of a non-load-bearing connection clamp for ground potential operation, which includes an integrally connected drainage wire installation part, a drainage wire pressure plate connection part, an intermediate connection part, a bus clamping part and a connecting ear plate; the drainage wire installation The upper part is an arc-shaped plate protruding downward; the connection part of the drain line pressure plate is a rectangular plate body set horizontally, and the connection part of the drain line pressure plate is provided with 2 bolt holes; the middle connection part is the middle position set vertically Rectangular plate body with a hollowed-out square notch; the bus bar clamping part includes an integrally connected main body arc portion and an outstretched arc portion; the connecting ear plate is a square plate body with a connecting through hole in the middle of the horizontal setting pieces. The invention is simple in structure, low in cost and light in weight; it is easy to install and disassemble the splicing clamp composed of the main body and other parts, saves time and effort, has high work efficiency and strong applicability; it can be constructed without power failure, effectively avoiding power failure Economic and social unnecessary losses caused by construction.

Description

The clamp main body of the non-load-bearing connection clamp for ground potential operation

technical field

The invention relates to a power-taking device in an overhead power distribution line, in particular to a main part of a non-load-bearing splicing clamp that can be installed and disassembled by electrified ground potential operations. the

Background technique

The non-load-bearing connection clamp for ground potential operation is a live lapping device for overhead distribution line branches, knife switches, switches and other drainage lines. At present, the parallel trench clamps, amp clamps, C-type clamps, insulation piercing clamps, etc. commonly used on distribution lines have not taken into account the needs of live work during research and development, so they need to be powered off during installation. However, the frequent blackout construction of distribution lines cannot meet the increasingly high requirements of users for power quality and power supply reliability, and brings unnecessary losses to economic and social development. If the above-mentioned clamps need to be operated with ground potential insulating operating rods, it is necessary to temporarily develop targeted special tools, and these temporarily developed special tools have limitations, long working hours, and difficult operations, so they are difficult to be popularized. At present, with the improvement of insulation protection technology, the direct operation method of insulating bucket arm truck and insulating gloves is used to carry out related operations, but this operation method has relatively high requirements for the working environment such as roads and ground, such as places that cannot be reached by insulating bucket arm vehicles. In other places, the construction cannot be completed in this way. the

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a clamp main body of a non-load-bearing continuous clamp for ground potential operation with simple structure and low cost. The components together form a non-load-bearing connection clamp for ground potential operation, which is convenient to install and disassemble and can work safely without power failure. the

The technical solution of the present invention is: the clamp main body of the non-load-bearing connection clamp for ground potential operation of the present invention, its structural characteristics are: it includes an integrally connected drainage wire installation part, a drainage wire pressure plate connection part, an intermediate connection part, and a bus clamp Holder and connecting ear plate;

The above-mentioned drain line installation part is an arc-shaped plate body part protruding downward; the drain line pressure plate connecting part is a rectangular plate body part arranged horizontally, and there are two circular passages penetrating up and down at the front and rear of the drain line pressure plate connection part. The hole is used as a bolt hole for installation; the middle connection part is a rectangular plate body set vertically, and the middle position of the middle connection part is provided with a hollow square notch; the busbar clamping part includes an integrally connected main body arc part and Outwardly stretched arc-shaped part; the main body arc-shaped part of the busbar clamping part is an arc-shaped plate body part protruding upward; Its left lower end is integrally connected with the upper right end of the outstretched arc part in a streamlined shape; the connecting lug plate is a square plate body part arranged horizontally, and the middle position of the connecting lug plate is provided with a circular connection through hole penetrating up and down;

The above-mentioned drainage wire installation part is integrally connected with the lower right end of the drainage wire pressing plate connection part by its upper left end; the upper right end of the drainage wire installation part is integrally connected with the lower end of the intermediate connection part; The lower right end and the left end connecting the lug plate are integrally connected. the

A further solution is: the clamp main body of the non-load-bearing connection clamp for ground potential operation of the present invention is an integral part made of aluminum alloy. the

Matching with the clamp main body of the ground potential work non-load-bearing connecting line clamp of the present invention, other parts of a complete ground potential working non-load-bearing connecting line clamp also include: drainage line pressure plate, bolt connection assembly, busbar clamp Firmware, drive screws, guide bushes, sliding bushes and pivot pins;

The drainage wire pressing plate is a square plate body as a whole, and an arc-shaped protrusion is provided on the lower right side of the drainage line pressing plate; Adaptation: There are 2 mounting bolt holes on the drainage line pressure plate, which correspond to the 2 bolt holes on the connection part of the drainage line pressure plate of the main body of the cable clamp. the

There are 2 identical sets of bolt connection components; the bus bar fastener includes an integrally connected fastening body, 2 positioning baffles and a transmission connecting plate; the driving screw includes an integrally connected base and threaded drive column; the guide sleeve is hollow The cylindrical part, the inner wall of the guide sleeve is provided with internal threads; the wall of the guide sleeve is provided with two symmetrical pin holes penetrating left and right; the sliding sleeve is a hollow cylindrical sliding sleeve;

The drain line pressure plate is bolted to the main body of the line clamp through the bolt connection assembly; the busbar fastener is threadedly connected to the drive screw; the sliding sleeve is fixedly installed on the connecting ear plate through the connection through hole of the connecting ear plate of the main body of the line clamp with an interference fit up and down ; The inner wall of the guide sleeve is threadedly connected with the upper end of the threaded driving column of the driving screw and then connected with a shaft pin; the

The present invention has positive effects: (1) The clamp main body of the non-load-bearing connection clamp for ground potential operation of the present invention has a simple structure and low cost. The insulated operating rod is used for manual lifting and construction operations. (2) The clamp main body of the non-load-bearing connection clamp for ground potential work of the present invention, the drain wire installation part is designed as an arc-shaped body protruding downward; it is convenient to put the drain wire into the arc-shaped groove during construction, and pass through The arc-shaped protruding part of the supporting drainage line pressure plate matches, and the installation and fastening of the drainage line are more convenient. (3) The clamp main body of the non-load-bearing connection clamp for ground potential work of the present invention, the main body arc of the busbar clamping part is designed to protrude upward, which is convenient for hanging on the busbar through the arc slot after installation Above; the outstretched arc part of the bus bar clamping part is designed to be streamlined with the main body arc part, so that the non-load-bearing connection clamp lifted during the construction process can be easily hung on the bus bar of the distribution line. (4) The clamp main body of the non-load-bearing connection clip for ground potential operation of the present invention, and the non-load-bearing connection clip for ground potential operation composed of other supporting parts, are easy to install and disassemble, save time and effort, and have high work efficiency , strong applicability; it can be directly constructed without power outage, effectively avoiding unnecessary economic and social losses caused by power outage construction. the

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the schematic diagram of the three-dimensional structure of the ground potential operation non-load-bearing connection clamp jointly constituted by the present invention and other components;

Fig. 3 is the schematic diagram of the three-dimensional structure of the bus bar pressing plate in Fig. 2;

Fig. 4 is the schematic structural view of the insulating operating lever matched with the ground potential operation non-bearing splicing clamp of the main body of the present invention;

Fig. 5 is the flow chart of the installation and construction method of the ground potential operation non-bearing continuous line clamp mainly composed of the present invention;

Fig. 6 is a flow chart of the dismantling and construction method of the ground potential working non-load-bearing splicing clamp mainly composed of the present invention. the

The reference signs in the above-mentioned accompanying drawings are as follows:

Clamp main body 1, drainage wire installation part 11, drainage wire pressure plate connection part 12, bolt hole 12-1, middle connection part 13, square notch 13-1, bus bar clamping part 14, main body arc part 14-1, outer The arc-shaped part 14-2 is connected to the ear plate 15, connected to the through hole 15-1,

Drainage line pressure plate 2, arc-shaped protrusion 21,

Bolt connection assembly 3, bolt 31, spring washer 32, nut 33,

Busbar fastener 4, fastening main body part 41, positioning baffle plate 42, transmission connecting plate 43, bolt hole 43-1,

Drive screw rod 5, base 51, installation socket hole 51-1, through groove 51-2, threaded drive column 52,

guide bush 6,

Sliding sleeve 7,

Shaft pin 8,

Insulated operating rod 9, rod body 91, back-up ring 92, insulating sleeve 93, afterburner handle 94, connecting sleeve 95, sleeve pin 96, plug-in shaft 97. the

Detailed ways

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

(Example 1)

As shown in Fig. 1, the main body 1 of the non-load-bearing connection clamp for ground potential operation in this embodiment is an integral piece made of aluminum alloy. The clamp main body 1 is mainly composed of a drain wire mounting part 11 , a drain wire pressing plate connecting part 12 , an intermediate connecting part 13 , a busbar clamping part 14 and a connecting ear plate 15 . the

The drain wire installation part 11 is an arc-shaped plate body protruding downward. The drain line clamping plate connecting portion 12 is a rectangular plate body part arranged horizontally, and the draining wire clamping plate connecting portion 12 is provided with 2 circular through-holes penetrating up and down, as bolt holes 12-1 for installation. The middle connecting portion 13 is a vertically arranged rectangular board member, and a hollow square notch 13 - 1 is provided in the middle of the middle connecting portion 13 . The bus bar clamping portion 14 is made up of an integrally connected main body arc portion 14-1 and an outstretched arc portion 14-2. The main body arc part 14-1 of the busbar clamping part 14 is an arc-shaped plate body protruding upward; 14-1 is integrally connected in streamline form by its left lower end and the right upper end of the outstretched arc portion 14-2. The connecting ear plate 15 is a square plate body part arranged horizontally, and a circular passage through the connecting ear plate 15 is provided at the middle position of the connecting ear plate 15 as the connecting through hole 15 - 1 . the

The drain wire mounting part 11 of the wire clip main body 1 is integrally connected with the lower right end of the drain wire pressing plate connecting part 12 by its upper left end; the upper right end of the drain wire mounting part 11 is integrally connected with the lower end of the middle connecting part 13; The upper end is integrally connected with the lower right end of the bus bar clamping portion 14 and the left end of the connecting ear plate 15 . In this way, an integrated cable clip main body 1 is formed. the

(Application example 1)

See Fig. 2 and Fig. 3, the clip main body 1 of the non-load-bearing continuous wire clamp for ground potential operation in the present embodiment 1 is used together with other supporting components to form the non-load-bearing continuous wire clip for ground potential operation. Other matching components include drain line pressure plate 2, bolt connection assembly 3, busbar fastener 4, driving screw 5, guide sleeve 6, sliding sleeve 7 and shaft pin 8. the

Drainage line pressure plate 2 is an overall square plate made of aluminum alloy; an arc-shaped protrusion 21 is provided on the right side of the drainage line pressure plate 2, and the radius of the arc-shaped protrusion 21 is consistent with the drainage of the main body 1 of the wire clamp. The radius of the arc of the wire mounting portion 11 is adapted. There are two mounting bolt holes on the drain wire pressing plate 2, which correspond to the two bolt holes 12-1 on the drain wire pressing plate connecting portion 12 of the clamp main body 1, and are used for installation and cooperation. the

The bolt connection assembly 3 consists of bolts 31 , spring washers 32 and nuts 33 . Two sets of bolts 31 , spring washers 32 and nuts 33 are respectively provided. the

The bus bar fastener 4 is an integral piece made of aluminum alloy. The bus bar fastener 4 is integrally composed of a fastening body part 41 , a positioning baffle plate 42 and a transmission connecting plate 43 . The overall shape of the fastening main body 41 is a rectangular parallelepiped facing forward and backward, and a downwardly recessed arc-shaped notch is provided at its upper end. The overall shape of the positioning baffle plate 42 is a left-right rectangular plate body; the left-right length of the positioning baffle plate 42 is greater than the left-right width of the fastening main body portion 41; Up and down height; the upper end of the positioning baffle 42 is provided with a downwardly recessed arc-shaped notch, which is located on the same level as the lower end of the arc-shaped notch fastening the main body 41 . Two positioning baffles 42 are provided with the same structure, and the two positioning baffles 42 are respectively arranged at the front and rear ends of the fastening main body 41 and integrally connected with the fastening main body 41 . The transmission connecting plate 43 is a square plate body; the front and rear length of the transmission connecting plate 43 is smaller than the front and rear length of the fastening main body 41 . The transmission connecting plate 43 is integrally connected with the middle part of the right end surface of the fastening main body part 41 by its left end surface. In the middle of the transmission connecting plate 43 is provided a bolt hole 43 - 1 penetrating from top to bottom. the

The driving screw rod 5 is an integral piece made of steel. The driving screw 5 is integrally composed of a base 51 and a threaded driving column 52 . The base 51 is disposed below the driving screw 5 . The base 51 is a hollow cylinder as a whole, and the middle and lower part of the wall of the base 51 is provided with a left-right symmetrical hollow mounting socket hole 51-1; the lower end of the base 51 is provided with a socket connecting hole 51-1 through slot 51-2. The threaded driving column 52 is arranged on the top of the base 51, and is integrally connected with the base 51, and the stud driving column 52 is provided with a left-handed thread. The central axis of the threaded driving post 52 is provided with a cylindrical through hole; the upper part of the threaded driving post 52 is provided with pin holes penetrating left and right. the

The guide sleeve 6 is a hollow cylinder, and the inner wall of the guide sleeve 6 is provided with internal threads. The wall body of the guide sleeve 6 is provided with two symmetrical pin holes penetrating left and right. the

The sliding sleeve 7 is a hollow cylinder sliding sleeve. the

The installation, connection and coordination relationship of the aforementioned components are as follows:

The drain wire pressing plate 2 is bolted to the drain wire pressing plate connecting portion 12 of the wire clamp main body 1 through the bolt connection assembly 3 in such a way that its arc-shaped protruding portion 21 is facing downward to the drain wire mounting portion 11 of the wire clamp main body 1; the busbar is fastened The transmission connecting plate 43 of the piece 4 passes through the square gap 13-1 of the middle connecting portion 13 of the clamp main body 1 to the right and is threadedly connected with the threaded driving column 52 of the driving screw 5 through its bolt hole 43-1. The sliding sleeve 7 is fixedly installed on the connecting ear plate 15 through the connecting through hole 15-1 of the connecting ear plate 15 of the clamp main body 1, and is fixedly installed on the connecting ear plate 15; After the upper end is threaded, it is pin-connected with the shaft pin 8; the outer wall of the guide sleeve 6 and the inner wall of the sliding sleeve 7 can slide up and down. the

The ground potential operation non-load-bearing connection clamp of this application example can be conveniently constructed by using the insulating operating rod 9 matched with it during construction. the

As shown in FIG. 4 , the insulating operating rod 9 is mainly composed of a rod body 91 , a retaining ring 92 , an insulating sleeve 93 , an afterburner handle 94 , a connecting sleeve 95 , a sleeve pin 96 and a plug shaft head 97 . the

The rod body 91 is made of insulating glass fiber reinforced plastic. The rod body 91 is a hollow elongated cylinder. the

The retaining ring 92 is an annular member made of insulating glass fiber reinforced plastic; the retaining ring 92 is sleeved and fixedly installed on the lower outer wall of the rod body 91 . The retaining ring 92 is convenient for the insulating operation rod 9 to prevent the rod body from falling out of the hand when grasping during use. the

The insulating sleeve 93 is made of rubber. The insulating sleeve 93 is a hollow cylinder; the insulating sleeve 93 is sleeved on the lower part of the rod body 91 . the

The material of afterburner handle 94 is carbon steel. The afterburner handle 94 is an elongated circular rod body. The force handle 94 passes through the rod body 91 transversely and is fixed on the rod body 91 , and is located at the upper end of the insulating sleeve 93 . the

The connecting sleeve 95 is made of carbon steel. Connecting sleeve 95 is integrally made up of lower sleeve body and upper sleeve body. The lower sleeve body of the connecting sleeve 95 is a hollow cylinder, and its inner diameter is compatible with the outer diameter of the rod body 91 . The upper sleeve body of the connecting sleeve 95 is a hollow cylinder, and its outer diameter is smaller than the outer diameter of the rod body 91. The upper sleeve body of the connecting sleeve 95 is symmetrically provided with 2 through holes to the left and right as the installation connecting holes. The connecting sleeve 95 is sleeved by its lower sleeve and fixed on the upper end of the rod body 91 . the

The material of socket pin 96 is carbon steel. The socket pin 96 is a round bar-shaped part. the

The material of the plug-in shaft head 97 is carbon steel. The plug-in shaft head 97 is a round bar-shaped piece; the lower end of the plug-in shaft head 97 is provided with a mounting hole extending left and right. The plug shaft head 97 is fixedly installed on the upper body of the connecting sleeve 95 through the socket pin 96 . the

As shown in Figure 5, the non-load-bearing connection clamp for ground potential operation in this application example can be installed and constructed at a long distance without power failure by using its matching insulating operating rod 9. The installation method mainly includes the following steps:

① Check and confirm that the line to be connected has no load and no phase-to-phase short circuit and ground fault before operation;

②Electricians working at ground potential take insulation and isolation measures gradually from near to far for the equipment within the working range that may be short-circuited or grounded due to the swing of the drain wire;

③Installing the middle-phase drain line: the ground potential electrician installs the drain line into the drain line installation part 11 of the clamp main body 1 of the non-load-bearing connection clamp; covers the drain line pressure plate 2 and connects the components through bolts 3 Fasten to clamp the drain wire;

④Lifting the non-load-bearing splicing clamp: the ground potential electrician holds the insulating cover 93 of the insulating operating rod, and sets the two ends of the socket pin 96 of the insulating operating rod on the base 51 of the driving screw 5; The non-load-bearing splicing clamp is lifted upwards to the vicinity of the bus bar of the overhead distribution line;

⑤The non-load-bearing extension clamp is hung on the distribution line busbar: after the ground potential electrician lifts the non-load-bearing extension clip to the vicinity of the busbar through the insulating operating rod, the clamp main body 1 of the non-load-bearing extension clip moves toward the busbar After the busbar enters between the busbar clamping part 14 of the clamp main body 1 and the fastening main part 41 of the busbar fastener 4, pull the insulating operating lever downward slightly to make the busbar and the busbar clamping part of the clamp main body 1 14 contact;

⑥The non-load-bearing extension clamp is fixedly connected with the distribution line busbar: rotate the force handle 94 on the insulating operating lever, and the insulating operating lever drives the driving screw 5 of the non-bearing extending clamp to rotate accordingly. Under the reverse drive, the bus bar pressing plate 4 moves upward to clamp the bus bar, so that the non-load-bearing connection clamp is fixed and suspended on the bus bar of the distribution line;

⑦Repeat steps ③ to ⑥ to install the drain wires of the remaining two phases;

⑧Electricians working on ground potential shall gradually remove the insulation and isolation measures on equipment that may be short-circuited or grounded due to the swing of the drain wire from far to near;

As shown in Figure 6, the non-load-bearing connection clamp for ground potential work in this application example can realize long-distance disassembly and construction without power failure by using its matching insulating operating rod 9, which mainly includes the following steps:

① Check and confirm that the line to be disassembled has no load and no phase-to-phase short circuit and ground fault before operation;

②Electricians working on ground potential shall gradually take insulation and isolation measures from near to far for the equipment that may be short-circuited or grounded due to the swing of the drain line within the working range on the pole;

③ The ground potential electrician uses an insulating assembly rod to unscrew the busbar fastener 4 of the non-load-bearing connection clamp on the live mid-phase busbar in the distribution line;

④ Lift the non-load-bearing connection clamp, and move the non-load-bearing connection clamp away from the live busbar of the distribution line;

⑤Repeat steps ③ and ④, and remove the non-load-bearing connection clamps on the remaining two phases from the live busbar of the distribution line;

⑥ The electrician working at ground potential disassembles the drain wire on the non-load-bearing splicing clamp;

⑦Remove the insulation isolation measures on the equipment that may be short-circuited or grounded due to the swing of the drain line gradually from far to near. the

To sum up, the clamp body of the non-load-bearing connection clamp for ground potential operation of the present invention has a simple structure and low cost; the structure is simple and the cost is low, and the aluminum alloy material is used to make the overall weight lighter, and it is convenient to pass matching during construction. Manual lifting and construction operation of the insulated operating rod; the installation part of the drainage wire of the main body of the wire clamp is designed as an arc-shaped body protruding downward; it is convenient to put the drainage wire into the arc-shaped groove during construction, through The arc-shaped protruding part is matched, and it is more convenient to install and fasten the drainage line; the main body arc-shaped part of the bus-bar clamping part of the main body of the line clamp is designed to protrude upward, which is convenient for hanging on the bus-bar through the arc-shaped groove after installation. ; The outstretched arc portion of the bus bar clamping portion is designed to be streamlined with the main body arc portion, so that the non-load-bearing connection clamp lifted during the construction process can be easily hung on the bus bar of the power distribution line; The main body of the non-load-bearing connection clamp for ground potential operation and the non-load-bearing connection clamp for ground potential operation composed of other supporting parts are convenient to install and disassemble, save time and effort, have high work efficiency, and have strong applicability; Direct construction without power outage can effectively avoid unnecessary economic and social losses caused by power outage construction. the

The above embodiments and application examples are descriptions of specific implementations of the present invention, rather than limitations of the present invention. Those skilled in the relevant technical fields can also make various transformations and changes without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should be included in the patent protection scope of the present invention. the

Claims (2)

1. the wire clamp main body of an earth potential working non-bearing connecting clip, is characterized in that: comprise drainage thread installation portion (11), drainage thread pressing plate connecting portion (12), middle interconnecting piece (13), the bus holding section (14) that one connects and be connected otic placode (15);

Described drainage thread installation portion (11) is outstanding downwards curved plate body part; Drainage thread pressing plate connecting portion (12) is horizontally disposed rectangle plate body part, and drainage thread pressing plate connecting portion (12) minute front and back are provided with the manhole that 2 upward and downwards connect, as the bolt hole (12-1) that use is installed; The rectangular plate body part that middle interconnecting piece (13) arranges for vertical, and the centre position of middle interconnecting piece (13) is provided with the square breach (13-1) of hollow out; Bus holding section (14) comprises main body curved portions (14-1) and the abduction curved portions (14-2) that one connects; The main body curved portions (14-1) of bus holding section (14) is outstanding upward curved plate body part; Abduction curved portions (14-2) is the arc plate body part outstanding to lower right; Main body curved portions (14-1) is the streamlined one by its lower-left end with the upper right side of abduction curved portions (14-2) and is connected; Connecting otic placode (15) is horizontally disposed square plate body part, and the centre position that connects otic placode (15) is provided with the connecting through hole (15-1) of the circle of upward and downward perforation;

Described drainage thread installation portion (11) is connected with the bottom righthand side one of drainage thread pressing plate connecting portion (12) by its left upper end; The upper right side of drainage thread installation portion (11) is connected with the lower end one of middle interconnecting piece (13); The upper end of middle interconnecting piece (13) and the bottom righthand side of bus holding section (14) and the left end one connection that is connected otic placode (15).

2. the wire clamp main body of earth potential working non-bearing connecting clip according to claim 1, it is characterized in that: it is the integral piece of aluminum alloy material.

Images