CN105140675B - Improve the earth potential working non-bearing connecting clip of work efficiency - Google Patents

Abstract

The invention provides a non-load-bearing connection clamp for ground potential operation with improved work efficiency, which includes a main body of the clamp, a drain wire pressure plate, a bolt connection assembly, a busbar fastener, a driving screw, a guide sleeve, a sliding sleeve and a shaft pin; the drain wire The pressure plate is bolted to the main body of the wire 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 wire clamp with interference fit up and down; the guide The inner wall of the sleeve is threadedly connected with the upper end of the threaded driving column of the driving screw rod and then pinned with a shaft pin; the outer wall of the guide sleeve and the inner wall of the sliding sleeve can be slidably socketed up and down. The invention has simple structure, low cost, convenient installation and disassembly, time-saving and labor-saving, high work efficiency and strong applicability; it can be directly constructed without power outage, effectively avoiding unnecessary economic and social damage caused by power outage construction. loss.

Description

Non-load-bearing splicing clamp for ground potential work to improve work efficiency

This application is a divisional application of the invention patent application with the application number 201310319363.7, the application date is July 26, 2013, and the invention name is "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 non-load-bearing splicing clip that can be installed and disassembled by electrified ground potential operations.

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 non-load-bearing splicing clamps such as parallel trench clamps, amp clamps, C-type clamps, and insulation piercing clamps commonly used on distribution lines did not consider the needs of live work when they were developed. Both require power outage construction, and the frequent power outage construction of distribution lines cannot meet the user's increasingly high requirements for power quality and power supply reliability, and bring 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.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a non-load-bearing connection clip for ground potential operation with simple structure, low cost, convenient installation and disassembly, and safe operation without power failure.

The technical solution of the present invention is: the ground potential operation non-load-bearing connection clamp for improving work efficiency of the present invention, its structural characteristics are: including the main body of the clamp, the pressure plate of the drainage line, the bolt connection assembly, the busbar fastener, the driving screw, the guide sleeves, sliding sleeves and shaft pins;

The main body of the above-mentioned wire clamp includes a drain wire installation part, a drain wire pressure plate connection part, an intermediate connection part, a busbar clamping part and a connecting ear plate connected integrally, and the connecting ear plate is provided with a connection through hole; the drain line pressure plate is a square shape as a whole There is an arc-shaped protrusion on the lower right side of the drainage line pressure plate; there are two identical sets of bolt connection components; the busbar fasteners include an integrally connected fastening main body, two positioning baffles and transmission The connecting plate; the driving screw includes an integrally connected base and a threaded driving column; the guide sleeve is a hollow cylinder, and the inner wall of the guide sleeve is provided with internal threads; the wall of the guide sleeve is provided with symmetrical 2 a pin hole; the sliding sleeve is a hollow cylindrical sliding sleeve;

The above-mentioned drainage line pressure plate is connected to the main body of the clamp by bolts; the busbar fastener is threadedly connected to the drive screw; the sliding sleeve is fixedly mounted on the connecting ear through the connection through hole of the connecting ear plate of the main body of the clamp by interference fit up and down. on the plate; 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 outer wall of the guide sleeve and the inner wall of the sliding sleeve can be slidably socketed up and down;

The overall shape of the fastening main part of the above-mentioned busbar fastener is a front-to-back cuboid, and its upper end is provided with a downwardly recessed arc-shaped gap; the positioning baffle is a rectangular plate body with an overall shape of left and right; the positioning baffle The left-right length is greater than the left-right width of the fastening main body; the up-down height of the positioning baffle is greater than the up-down height of the fastening main body; the upper end of the positioning baffle is provided with a downwardly concave arc-shaped gap, the The lower end of the arc-shaped notch and the arc-shaped notch of the fastening main body are located on the same level; the positioning baffles are provided with two pieces of the same structure, and the two positioning baffles are respectively arranged at the front and rear ends of the fastening main body, and are connected with the The fastening main body is integrally connected; the transmission connecting plate is a square plate body; the front and rear length of the transmission connecting plate is less than the front and rear length of the fastening main body; the transmission connecting plate is connected with the right end face of the fastening main body by its left end The middle part is integrally connected; the middle of the transmission connecting plate is provided with bolt holes penetrating from top to bottom;

The base of the above-mentioned driving screw is arranged below the driving screw; the base is a hollow cylinder as a whole, and the middle and lower part of the wall of the base is provided with a left-right symmetrical hollow mounting sleeve hole; the lower end of the base is provided with Install the through grooves connected to the sleeve holes; the threaded driving column is arranged above the base, and the stud driving column is provided with left-handed threads; the central axis of the threaded driving column is provided with a cylindrical through hole; the upper part of the threaded driving column is provided with There are pin holes that pass through from left to right.

A further solution is: the above-mentioned drainage wire installation part of the main body of the wire clamp is an arc-shaped plate body part protruding downward; 2 circular through holes penetrating up and down, as bolt holes 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 hollowed out square gap; the busbar clamping part Including the integrally connected main body arc part and outward extension arc part; the main body arc part of the bus bar clamping part is an arc-shaped plate body protruding upward; the outward extension arc part is an arc protruding to the lower left Plate body part; the main body arc part is connected in a streamlined form by its left lower end and the right upper end of the outstretched arc part; the connecting ear plate is a square plate body part arranged horizontally, and the connecting through hole connecting the ear plate is arranged The middle position of the ear plate;

The drain line installation part of the main body of the line clamp is connected integrally with the lower right end of the connection part of the drain line pressure plate by its upper left end; the upper right end of the drain line installation part is integrally connected with the lower end of the middle connection part; The lower right end and the left end of the connecting ear plate are integrally connected.

A further solution is: the above-mentioned drain line pressing plate is a square plate body as a whole; an arc-shaped protrusion is provided on the lower right side of the drain line pressing plate, and the radius of the arc-shaped protrusion is installed with the drain line of the main body of the wire clip. The radius of the arc of the upper part is adapted; there are 2 mounting bolt holes on the drainage line pressure plate, and the 2 installation bolt holes correspond to the 2 bolt holes on the connection part of the drainage line pressure plate of the main body of the cable clamp.

A further solution is: the above-mentioned bolt connection assembly includes bolts, spring washers and nuts.

The present invention has positive effects: (1) The non-load-bearing connection clamp for ground potential work with improved work efficiency of the present invention has a simple structure and low cost. (2) The ground potential operation non-load-bearing connection clamp for improved work efficiency of the present invention is convenient to install and disassemble, saves time and effort, has high work efficiency, and has strong applicability. (3) The ground potential work non-load-bearing connection clamp for improved work efficiency of the present invention can be directly constructed without power failure, effectively avoiding unnecessary economic and social losses caused by power failure construction. (4) The non-load-bearing connection clamp for ground potential operation with improved work efficiency of the present invention, the main components of the clamp body, the drain line pressure plate and the busbar fasteners are all made of aluminum alloy, which makes the overall weight lighter and facilitates installation and construction .

Description of drawings

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

Fig. 2 is a schematic diagram of the three-dimensional structure of the main body of the wire clip in Fig. 1;

Fig. 3 is a schematic diagram of the three-dimensional structure of the bus bar pressing plate in Fig. 1;

Fig. 4 is the structural representation of the special-purpose insulating operating rod supporting with the present invention;

Fig. 5 adopts the flow chart of the construction method of the present invention to be installed by using the ground potential operation method with an insulating operating rod;

Fig. 6 is a flow chart of the construction method of the present invention that adopts the ground potential operation method and adopts the insulating operating rod to disassemble.

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 lug plate 15, connected to the through hole 15-1,

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

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

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

Drive screw 5, base 51, mounting sleeve hole 51-1, through groove 51-2, threaded drive column 52,

guide bush 6,

slip 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.

detailed description

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

(Example 1)

See Fig. 1 to Fig. 3, the ground potential operation non-load-bearing connection clamp for improving work efficiency in this embodiment is mainly composed of a clamp main body 1, a drain line pressure plate 2, a bolt connection assembly 3, a busbar fastener 4, and a driving screw 5 , Guide sleeve 6, sliding sleeve 7 and shaft pin 8 are formed.

As shown in Fig. 2, the clamp main body 1 is an integral part made of aluminum alloy. The clamp main body 1 is integrally composed of a drain wire mounting part 11 , a drain wire pressing plate connecting part 12 , an intermediate connecting part 13 , a bus bar clamping part 14 and a connecting ear plate 15 .

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 composed of a main body arc portion 14-1 and an outward arc portion 14-2 integrally connected. The main body arc part 14-1 of the bus bar 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, and a circular through hole 15-1 is provided in the middle of the connecting ear plate 15 to pass through from top to bottom.

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.

Still see Fig. 1, the drainage wire pressing plate 2 is a square plate body part made of aluminum alloy as a whole; an arc-shaped protrusion 21 is arranged on the right side of the drainage line pressing plate 2, and the radius of the arc-shaped protrusion 21 is the same as that of the line. The radius of the arc of the drain wire installation portion 11 of the clip body 1 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 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.

As shown in Fig. 3, the bus bar fastener 4 is an integral part 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.

Still referring to Fig. 1, 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 above the base 51 and integrally connected with the base 51 , and the screw driving column 52 is provided with a left-hand 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 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 sliding sleeve 7 is a hollow cylinder sliding sleeve.

The installation, connection and coordination relationship of each part of the ground potential work non-load-bearing splicing clamp for improving work efficiency in this embodiment is 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 ground potential operation non-load-bearing connection clamp for improving work efficiency of the present embodiment can be conveniently constructed by using the insulating operating rod 9 matched therewith during construction.

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

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 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 material of the 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 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 connecting holes for installation. The connecting sleeve 95 is sleeved by its lower sleeve and fixed on the upper end of the rod body 91 .

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

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 .

Referring to Fig. 5, the non-load-bearing connection clamp for ground potential operation to improve work efficiency in this embodiment can realize long-distance installation and construction without power failure by using the 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 on ground potential shall gradually take insulation and isolation measures 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 reverse driving, the bus bar pressing plate 4 moves upwards to clamp the bus bar, so that the non-load-bearing connection clamp is fixed and suspended on the bus bar of the power distribution line;

⑦Repeat step ③ to step ⑥ to install the drainage lines 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 embodiment can realize long-distance disassembly and construction without power failure by using the 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 equipment that may be short-circuited or grounded due to the swing of the drain wire 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 the ground potential disassembles the drainage wire on the non-load-bearing connection 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.

To sum up, the non-load-bearing splicing clamp for ground potential work with improved work efficiency in this embodiment has a simple structure and low cost; it is easy to install and disassemble, saves time and effort, and has high work efficiency. Strong applicability; the use of matching installation tools can directly construct without power failure, effectively avoiding unnecessary economic and social losses caused by power outage construction; The main components such as the pressure plate of the drainage line and the fasteners of the busbar are made of aluminum alloy, which makes the overall weight light and easy for installation and construction.

The above embodiments 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. Corresponding equivalent technical solutions, therefore all equivalent technical solutions should fall into the patent protection scope of the present invention.

Claims (1)

1. A kind of 1. earth potential working non-bearing connecting clip for improving work efficiency, it is characterised in that：Including wire clip body（1）, drainage Line pressing plate（2）, bolt connection assembly（3）, bus bar part（4）, drive screw（5）, guide pin bushing（6）, sliding sleeve（7）And pivot pin（8）；

   Described wire clip body（1）Drainage thread installation portion including integrally connected（11）, drainage thread pressing plate connecting portion（12）, it is middle Connecting portion（13）, bus holding portion（14）And connection otic placode（15）, connection otic placode（15）It is provided with connection through hole（15-1）；Drainage Line pressing plate（2）For the plate body part being integrally square, drainage thread pressing plate（2）Lower right-hand side be provided with an arcuate projection（21）； Bolt connection assembly（3）Provided with 2 sets of identical；Bus bar part（4）Fastening main part including integrally connected（41）, 2 pieces it is fixed Position plate washer（42）With drive connection plate（43）；Drive screw（5）Pedestal including integrally connected（51）With screw drive post（52）； Guide pin bushing（6）For hollow column member, guide pin bushing（6）Inwall be provided with internal thread；Guide pin bushing（6）Wall body be provided with left and right to passing through Logical symmetrical 2 pin-and-holes；Sliding sleeve（7）For hollow cylinder sliding sleeve；

   Described drainage thread pressing plate（2）It is bolted component（3）With wire clip body（1）Bolt connection；Bus bar part（4） With drive screw（5）Threaded connection；Sliding sleeve（7）Pass through wire clip body（1）Connection otic placode（15）Connection through hole（15-1）On It is lower to be fixedly mounted on connection otic placode to interference fit（15）On；Guide pin bushing（6）Inwall and drive screw（5）Screw drive post （52）Threaded upper ends connection after use pivot pin again（8）Pin joint；Guide pin bushing（6）Outer wall and sliding sleeve（7）Inwall can slide up and down to Socket；

   Described bus bar part（4）Fastening main part（41）Global shape is sagittal cuboid, its upper end be provided with to The arc notch being sunken into；Position plate washer（42）For global shape be left and right to rectangle plate body part；Position plate washer（42）It is left The length of dextrad is more than fastening main part（41）Left and right to width；Position plate washer（42）The height of upward and downward is more than fastening and led Body portion（41）Upward and downward height；Position plate washer（42）Upper end be provided with arc notch recessed down, the arc notch with Fasten main part（41）The lower end of arc notch be located in same level；Position plate washer（42）Provided with 2 pieces of structure identical, This 2 pieces positioning plate washers（42）It is respectively arranged on fastening main part（41）Rear and front end, and with fasten main part（41）Integrally connected； Be connected plate（43）For square plate body part；Be connected plate（43）Sagittal length be less than fastening main part（41）Before Backward length；Be connected plate（43）With its left side and fastening main part（41）The connection of right side integral middle；Transmission Connecting plate（43）Centre be provided with upward and downward insertion bolt hole（43-1）；

   Described drive screw（5）Pedestal（51）Located at drive screw（5）Lower section；Pedestal（51）Generally hollow cylinder Body, pedestal（51）Wall body middle and lower part be provided with symmetrical hollow out installation sleeve joint hole（51-1）；Pedestal（51）Lower end Provided with installing sleeve joint hole（51-1）What is communicated passes through groove（51-2）；Screw drive post（52）It is arranged on pedestal（51）Top, Screw drive post（52）It is provided with left hand thread；Screw drive post（52）Axis be provided with cylinder through hole；Screw thread drives Dynamic post（52）Top be provided with left and right to insertion pin-and-hole；

   Described wire clip body（1）, drainage thread pressing plate（2）With bus bar part（4）It is the integral piece of aluminum alloy material.