CN102709845B - Ground wire lifter - Google Patents

Abstract

The invention relates to a ground wire lifter. The ground wire lifter is characterized in that it is composed of a cross-arm card device and a wire-lifting hook device; one end of the positioning block of the wire-lifting hook device is located in the U-shaped notch of the cross-arm card device. The cross-arm clamping device comprises fastening bolts, U-shaped clamping plates, strip plates, base plates, fixing plates, fixing plate bolts and fixing beams. The wire lifting hook device includes a positioning cylinder, a positioning block, a screw mandrel, a U-shaped tongue plate, a tongue plate bolt, a wire lifting hook, a screw nut, an insulating rubber layer and a screw nut handle. The beneficial effects of the present invention are: the present invention can be firmly fixed on the cross-arm of the pole tower, avoiding the deviation fault, and portable; it can be adapted to different installation methods, and it is beneficial to lift the ground wire; it has simple structure, light weight, and convenient operation. It has the characteristics of low labor intensity, high operation efficiency and good safety performance.

Description

ground riser

technical field

The invention relates to a ground wire lifter.

Background technique

The rated load of the ground wire lifter is 15KN, which is suitable for lifting the ground wire with large span or top gear. When in use, first hang the ground wire lifter bracket on the ground wire cross arm, place the ground wire in the grooves at both ends of the wire support beam, then turn the screw to drive the screw and the wire support beam to move up, and the wire support beam Lift the ground wires on both sides of the tower at the same time at both ends.

We have carried out a statistical analysis of the long-term construction situation, and found that when the pulley is installed on the linear tower, the existing ground wire lifter often deviates, which all occur on the tower with a large gear or the top gear; When lifting the ground wire, because the actual stress of the ground wires on both sides is not equal, the lifting force required on both sides of the tool is also different. However, the lifter uses a single screw rod. The lifting height is exactly the same, which causes the ground wire to wear at the edge of the groove of the support beam, and the different forces cause the existing ground wire lifter to deviate to varying degrees; the ground wire cross-arm hanging point is generally composed of two pieces or one piece of angle material , the upper bracket of the ground wire lifter is hung on the angle material of the ground wire cross arm, and the width of the upper bracket is only 16mm, the contact area with the ground wire bracket is too small, and there is no auxiliary component that increases friction, the ground wire is stressed Afterwards, it is easy to cause the lifter to slip. In addition, after the wire support beam tilts due to unbalanced force, the contact area between the upper part and the ground wire hanging point cross arm is too small to stabilize the existing ground wire lifter, resulting in the existing ground wire Riser deflection fault.

Contents of the invention

The object of the present invention is to provide a ground wire lifter that can be firmly fixed on the ground wire cross arm and is portable.

In order to achieve the above object, the technical solution adopted in the present invention is the ground wire lifter, which is characterized in that it is composed of a cross-arm card device and a wire-lifting hook device; one end of the positioning block of the wire-lifting hook device is located on the cross-arm card In the U-shaped notch of the device.

The above-mentioned cross-arm card device includes fastening bolts, U-shaped clamping plates, strip plates, bottom plates, fixing plates, fixing plate bolts and fixed beams; the opening of the U-shaped clamping plate is downward, and the right end of the fastening bolts is screwed on the U-shaped In the fastening bolt threaded hole in the middle of the left plate of the clamp, one end of the two bottom plates is vertically fixed on the front and rear sides of the outer bottom of the right plate of the U-shaped clamp respectively; the two ends of the fixed beam are respectively vertical It is fixed in the middle of the lower part of two strip plates placed in parallel; the left ends of the two strip plates are vertically fixed on the outside of the right side of the U-shaped card plate, and two U-shaped plates are opened on the upper part of the right part of the two strip plates. The first bolt threaded hole is provided in the upper middle between the two U-shaped notches on the strip plate, and the second bolt threaded hole is provided on the left side of the U-shaped notch on the left side of the strip plate. The right side of the U-shaped notch on the right side of the shaped plate is provided with a third bolt threaded hole; one end of the fixed plate is provided with a hole, and two semicircular grooves are symmetrically opened on both sides of the other end of the fixed plate, and the bolts of the fixed plate pass through The hole on the fixing plate is screwed on the first bolt threaded hole of the strip plate, the second bolt is screwed in the threaded hole of the second bolt, the third bolt is screwed in the third bolt threaded hole, and the other end of the fixing plate is in the When on the left side, the semicircular groove at the other end of the fixed plate is screwed on the bar plate by the second bolt, and when the other end of the fixed plate is on the right, the semicircular groove at the other end of the fixed plate is screwed by the third bolt. Fastened to the strip plate.

The above-mentioned wire lifting hook device includes a positioning cylinder, a positioning block, a screw mandrel, a U-shaped tongue plate, a tongue plate bolt, a wire lifting hook, a screw nut, an insulating rubber layer and a screw nut handle; the side of the positioning cylinder is symmetrically arranged Two positioning blocks, the positioning sleeve is set on the screw rod, one end of the two positioning blocks is respectively located in the U-shaped notch of two parallel strip plates of the cross-arm card device, and the positioning block is located at the cross-arm card device Below the fixing plate; the upper end of the screw rod is screwed with a screw nut, which is located above the positioning cylinder, one end of the handle of the screw nut is fixedly connected to the side of the screw nut, and the lower end of the screw rod is connected to the U-shaped tongue plate. The upper end is fixed, and the opening of the U-shaped tongue plate is downward; the upper part of the thread-lifting hook is located in the tongue between the U-shaped tongue plates, and the upper part of the thread-lifting hook is connected with the U-shaped tongue plate by the bolt of the tongue plate; Both sides of the hook groove of the lower part of the hook are inclined downward, and the hook groove part of the wire lifting hook is covered with an insulating rubber layer.

The beneficial effects of the present invention are:

1. The ground wire lifter of the present invention can be firmly fixed on the ground wire cross arm, avoiding deviation faults, and is portable.

2. Set two U-shaped notches (screw hangers) to install the screw, which can adapt to different installation methods and is conducive to lifting the ground wire.

3. Compared with existing tools, it has the characteristics of simple structure, light weight, convenient operation, low labor intensity, high operating efficiency and good safety performance.

Description of drawings

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

Fig. 2 is a schematic diagram of the thread lifting hook device of the present invention.

Fig. 3 is a front view of the cross-arm card device of the present invention.

Fig. 4 is a top view of the cross-arm card device of the present invention.

In the figure: 1. fastening bolt, 2. U-shaped clamping plate, 3. strip plate, 4. bottom plate, 5. fixing plate, 6. fixing plate bolt, 7. U-shaped notch, 8. fixing beam, 9 , positioning cylinder, 10, positioning block, 11, screw mandrel, 12, U-shaped tongue plate, 13, tongue plate bolt, 14, wire lifting hook, 15, screw nut, 16, insulating rubber layer, 17, wire Rod nut handle.

Detailed ways

In order to better understand the present invention, the technical solutions of the present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

The ground wire lifter provided by the present invention has a structure as shown in Figure 1, and it is composed of a cross-arm card device and a wire lifting hook device; one end of the positioning block 10 of the wire lifting hook device is located in the U-shaped groove of the cross-arm card device Inside mouth 7.

The above-mentioned cross-arm card device (as shown in Figure 3 and Figure 4) includes fastening bolts 1, U-shaped clamping plates 2, strip plates 3, bottom plates 4, fixed plates 5, fixed plate bolts 6 and fixed beams 8; The opening of the clamping plate 2 is downward, and the right end of the fastening bolt 1 is screwed in the fastening bolt threaded hole provided in the middle of the left side plate of the U-shaped clamping plate 2 (the U-shaped clamp of the U-shaped clamping plate is clamped in the horizontal position of the pole tower. bear, the fastening bolt 1 can be screwed in to fasten the U-shaped clamping plate and the cross-arm of the pole tower), and one end of the two bottom plates 4 is respectively vertically fixed on the front and rear sides of the outer bottom of the U-shaped clamping plate 2 right side plate surface (Fig. 4 The left side in the center is the left side, the right side is the right side, the top is the rear side, and the bottom is the front side); the two ends of the fixed beam 8 are respectively vertically fixed in the middle of the lower part of two strip plates 3 placed in parallel; the two strips The left end of the shaped plate 3 is vertically fixed on the outside of the right side of the U-shaped clamping plate 2, and the upper part of the right part of the two strip-shaped plates 3 has two U-shaped notches 7; two U-shaped grooves on the strip-shaped plate 3 The upper middle between the openings 7 is provided with a first bolt threaded hole, the left side of the U-shaped notch 7 on the left side of the strip plate 3 is provided with a second bolt threaded hole, and the U-shaped notch on the right side of the strip plate 3 The right side of 7 is provided with a third bolt threaded hole, and the three bolt holes (the first bolt threaded hole, the second bolt threaded hole, and the third bolt threaded hole) are located on the same horizontal plane, and the second bolt threaded hole is connected to the first bolt threaded hole The distance between the holes is the same as the distance between the third bolt threaded hole and the first bolt threaded hole; one end of the fixed plate 5 is provided with a hole, and two semicircular grooves are symmetrically opened on both sides of the other end of the fixed plate 5, Fixed plate bolt (being the first bolt) 6 passes the hole on the fixed plate 5 and is screwed on the first bolt threaded hole of strip plate 3 (fixed plate 5 is hinged on strip plate 3), the other end of fixed plate 5 When the part is on the left side, the semicircular groove at the other end of the fixed plate 5 is screwed on the strip plate 3 by the second bolt, and when the other end of the fixed plate 5 is on the right, the semicircular groove at the other end of the fixed plate 5 place is screwed on the strip plate 3 by the third bolt.

The above-mentioned wire lifting hook device (as shown in Figure 2) includes a positioning cylinder 9, a positioning block 10, a screw mandrel 11, a U-shaped tongue plate 12, a tongue plate bolt 13, a wire lifting hook 14, a screw nut 15, an insulating rubber layer 16 and screw nut handle 17; the side of the positioning cylinder 9 is symmetrically provided with two positioning blocks 10, the positioning cylinder 9 is sleeved on the screw rod 11, and one end of the two positioning blocks 10 is respectively located at the two ends of the cross arm card device. In the U-shaped notch 7 of the strip plate 3 placed in parallel, the positioning block 10 is located under the fixed plate 5 of the cross-arm card device; the upper end of the screw rod 11 is screwed with a screw nut 15, and the screw nut 15 is located in the positioning cylinder 9, one end of the screw nut handle 17 is fixedly connected to the side of the screw nut 15, the lower end of the screw mandrel 11 is fixedly connected with the upper end of the U-shaped tongue plate 12, and the opening of the U-shaped tongue plate 12 is downward; The top of wire hook 14 is positioned in the tongue mouth between U-shaped tongue plate 12, and the top of thread-lifting hook 14 is connected with U-shaped tongue plate 12 by tongue plate bolt 13 (hinged, the U-shaped tongue plate 12 of tongue both sides Bolt holes are arranged on the top, and the top of the thread hook 14 has holes, and the tongue plate bolt 13 passes through the bolt holes on the U-shaped tongue plate 12 and the holes on the top of the thread hook 14); The bottom hook groove both sides of 14 are inclined downwards, and the hook groove part of wire lifting hook 14 is covered with insulating rubber layer 16.

The technical parameters, materials and dimensions of the above components may vary according to actual conditions.

By tightening the fastening bolts 1, the present invention can be firmly fixed on the ground wire cross arm (pole tower cross arm), so as to prevent the ground wire lifter from shifting and failing. Both sides of the hook groove of the wire lifting hook 14 are inclined downward and the hook groove part is equipped with an insulating rubber layer 16 in order to reduce wear and tear.

The ground wire lifter provided by the present invention, when in use: As mentioned above, the present invention is assembled, the U-shaped clamping plate 2 is clamped on the cross arm, and then two base plates 4 are clamped on the nuts on the cross arm, Tighten the fastening bolt 1 to fix the cross arm card device on the cross arm, hook the wire lifting hook 14 to the ground wire, and finally rotate the screw nut 15 to perform operations (tighten the screw rod, lift the ground wire, install the tackle, and let the tackle be stressed ).

The above descriptions are only application examples of the present invention, and of course the scope of rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the patent scope of the present invention still belong to the protection scope of the present invention.

Claims (1)

1. The ground wire lifter is characterized in that: it consists of a cross-arm card device and a wire-lifting hook device; one end of the positioning block (10) of the wire-lifting hook device is located in the U-shaped notch (7) of the cross-arm card device Inside; The cross-arm card device includes fastening bolts (1), U-shaped clamping plates (2), strip plates (3), bottom plates (4), fixing plates (5), fixing plate bolts (6) and fixing beams ( 8); the opening of the U-shaped clamp (2) is downward, and the right end of the fastening bolt (1) is screwed in the fastening bolt threaded hole in the middle of the left side of the U-shaped clamp (2), One ends of the two bottom plates (4) are respectively vertically fixed on the front and rear sides of the outer bottom of the right side of the U-shaped clamping plate (2); the two ends of the fixed beam (8) are respectively vertically fixed on two parallel strip plates (3) the middle of the bottom; the left end of two strip plates (3) is vertically fixed on the outside of the U-shaped clamp (2) right side plate surface, and the top of the right part of the two strip plates (3) has two a U-shaped notch (7); the upper middle between the two U-shaped notches (7) on the strip plate (3) is provided with the first bolt threaded hole, and the U-shaped left side on the strip plate (3) The left side of the notch (7) is provided with the second bolt threaded hole, and the right side of the U-shaped notch (7) on the right side of the strip plate (3) is provided with the third bolt threaded hole; one end of the fixed plate (5) There are holes at the top of the fixed plate (5), and two semicircular grooves are symmetrically opened on both sides of the other end of the fixed plate (5). On the first bolt threaded hole, when the other end of the fixed plate (5) is on the left side, the semicircular groove at the other end of the fixed plate (5) is screwed on the strip plate (3) by the second bolt, and the fixed plate When the other end of (5) is on the right side, the semicircular groove at the other end of the fixed plate (5) is screwed on the strip plate (3) by the third bolt; The thread lifting hook device includes a positioning cylinder (9), a positioning block (10), a screw mandrel (11), a U-shaped tongue plate (12), a tongue plate bolt (13), a thread lifting hook (14), a wire Rod nut (15), insulating rubber layer (16) and screw nut handle (17); the side of positioning cylinder (9) is provided with two positioning blocks (10) symmetrically, and positioning cylinder (9) is enclosed within screw mandrel (11) ), one end of the two positioning blocks (10) is respectively located in the U-shaped notch (7) of two parallel strip plates (3) of the cross-arm card device, and the positioning block (10) is located on the cross-arm The bottom of the fixed plate (5) of the card device; the upper end of the screw mandrel (11) is screwed with a screw nut (15), the screw nut (15) is located above the positioning cylinder (9), and the screw nut handle (17) One end is fixedly connected to the side of the screw nut (15), the lower end of the screw rod (11) is fixedly connected to the upper end of the U-shaped tongue plate (12), and the opening of the U-shaped tongue plate (12) is downward; The top of (14) is positioned in the tongue mouth between U-shaped tongue plate (12), and the top of thread-lifting hook (14) is connected with U-shaped tongue-mouth plate (12) by tongue plate bolt (13); 14) The lower hook groove both sides are inclined downwards, and the hook groove part of the wire lifting hook (14) is covered with an insulating rubber layer (16).