CN107465147B - Multi-stage telescopic ground wire gun support arrangement - Google Patents

Abstract

The invention relates to a multi-stage retractable ground gun support device comprising a frame-type support, a base is provided at the bottom of the support, and a plurality of rollers are installed on the bottom of the base. On the fixed track, a sliding seat driven by a motor is slidably installed. The front end of the fixed track is hinged with an overturning track that can be connected with it; the front end of the base is hinged with an overturning support plate for placing the overturning track. The front end is equipped with a length-adjustable outrigger; the sliding seat is vertically installed with a multi-stage telescopic hydraulic cylinder, and the top end of the piston rod of the hydraulic cylinder is hinged with an openable ring hoop, and the inner circumference of the ring hoop rotates Install multiple support bearings. The invention has the advantages of simple structure, convenient realization, time-saving and labor-saving operation, accurate and reliable installation, and completely solves the operation problem of the loader and unloader.

Description

Multi-stage telescopic ground gun support device

technical field

The invention relates to the field of power transformation operation and maintenance tools, in particular to a multi-stage telescopic ground gun support device.

Background technique

The ground wire gun, also known as the ground wire loader, is a safe operation tool for installing and removing the ground wire in electric power production. It has been partially disclosed in the invention patent, and its specific structure includes an insulating sleeve or sleeve, a chuck, a pull rod, an operating trigger, a driving rack, a positioning mechanism and a reset mechanism. Wherein, the collet includes three openable claws, and the claws are slidably installed on the top of the casing through the fixing piece. In a natural state, the three claws protrude from the top of the casing to keep the collet in an open state. The drive rack is vertically slid and installed at the bottom of the bushing. The operation trigger is controlled by pressing the handle. One end of the trigger is hinged on the trigger bracket, and the other end of the trigger extends into the bushing and cooperates with the teeth of the drive rack. Press the handle to control the action of the trigger. Every time the trigger moves the rack, the rack moves down for a certain distance and is positioned by the positioning mechanism. The jaws move down, and after the wrench moves a few times, the claws can be pulled back into the casing to clamp the chuck. When the ground wire needs to be loosened, the positioning pin is pressed, and the positioning mechanism is released. Under the action of the return spring, the rack is driven to move up, and the pull rod is driven to rise, so that the hook protrudes out of the sleeve and the chuck opens.

The above-mentioned loading and unloading device is simple in operation and good in use effect, and has been widely used in the assembly and disassembly operation of the high-voltage grounding wire of the power supply system.

Due to the variety of equipment in the power supply system, the need to install the ground wire in different positions and the voltage level, etc., the following problems are encountered during the installation and removal of the ground wire:

1) The installation location is different. When installing or removing the ground wire, the chuck must continuously adjust the installation direction, so that the operator must continuously adjust the operating lever forward, backward, left, right, up, and down. In addition, the position adjustment After completion, it is necessary to rotate the ground wire gun body so that the chuck can be aligned with the installation position, which is difficult to operate, low in work efficiency and consumes a lot of physical strength;

2) The equipment for installing the grounding wire is different. During the process of installing or removing the grounding wire, the clamp size of the grounding wire needs to be adjusted to suit the different sizes of the equipment. In this way, it is necessary to continuously adjust the size and grip of the grounding wire by operating the trigger with the handle. Tight force, pressing the trigger by hand requires high grip strength and high labor intensity. If the number of loading and unloading grounding wires is large, the operator cannot bear such a high labor intensity independently, and multiple people need to take turns to operate, which consumes a lot of labor and reduces work efficiency. Low;

3) The voltage level of the on-site equipment in the substation is different, and the insulation distance, equipment volume, and height are different. Therefore, the length of the ground wire gun is different, that is, the length of the bushing is long or short. The length of the high voltage level is very long, and the voltage level is low. The length of the operating rod is relatively short, and the short operating rod is relatively easy to operate. However, if the voltage level of the equipment is high and the length of the operating rod is long, the upper part of the operating rod will be too heavy after the ground wire clip is clamped, and the operator relies on Personal strength cannot lift the operating lever to the installation position, but the guardian is not allowed to participate in the operation of the substation operation and maintenance switching operation, so some high-voltage grounding work cannot be completed with the grounding gun alone, sometimes It needs to rely on the insulated arm truck to assist in the completion, which greatly increases the difficulty, time and cost of the operation.

Based on the above problems, the applicant in this case developed a multi-stage telescopic ground gun support device. With this device, operators can easily complete the installation and disassembly of ground wires, especially the installation and disassembly of ground wires for high-voltage equipment.

Contents of the invention

The technical problem to be solved by the present invention is to provide a multi-stage telescopic ground gun support device with simple structure, time-saving and labor-saving operation, accurate and reliable installation.

In order to solve the above-mentioned technical problems, the multi-stage telescopic ground gun support device of the present invention includes a frame-type support, a base is provided at the bottom of the support, and a plurality of rollers are installed on the bottom of the base. The fixed track extending in the direction of the fixed track is slidably installed with a sliding seat driven by a motor. The front end of the fixed track is hinged with an overturning track that can be connected with it; the front end of the base is hinged with an overturning support plate for placing the overturning track. The front end of the flip support plate is equipped with adjustable legs; the sliding seat is vertically installed with multi-stage telescopic hydraulic cylinders, and the top of the piston rod of the hydraulic cylinders is hinged with an openable ring hoop. The inner circumference is rotatably mounted with a plurality of support bearings.

With the help of the structure of the bracket and the rollers, the position of the hydraulic cylinder can be flexibly moved to the installation and operation position of the ground wire, and the middle part of the ground wire gun rod body is erected on the hoop, which is equivalent to a support point for the rod body, and the operator operates the rod body The rear end can be very convenient to adjust the position of the front chuck flexibly; the structure of the slide seat is set so that the support position can be adjusted back and forth, and the operating position can be adjusted more flexibly; the flip track and the flip support plate are set to make the forward and backward movement distance Increase, the operating range can be greatly increased without moving the entire bracket, and the operation is more flexible and convenient. At the same time, with the help of the folding structure, it does not take up space and provides convenience for storage and transportation. Utilize the openable annular hoop, when the hoop is opened, place the middle part of the ground gun shaft body in the hoop, then close the hoop, and the support bearing inside the hoop presses against the cylindrical surface of the ground wire gun body First, press the rod body of the ground wire gun so that there will be no relative sliding between the rod body and the ferrule. Since the supporting bearing adopts the structure of rotating installation, the rod body can rotate relative to the ferrule, so that the collet can be more accurately aligned. Accurate installation position, simple and flexible operation.

The specific installation process is: when the piston rod of the hydraulic cylinder is lowered to the lowest level, the staff controls the motor to drive the slide to move, and operates the chuck at the front end of the rod to clamp the grounding wire on the ground, and then pushes the entire bracket to the high-voltage equipment. Below, the piston rod of the hydraulic cylinder is controlled to rise. The operator uses the principle of leverage to lift the front end of the rod body by pressing down on the rear end of the rod body. When the front end of the rod body is close to the installation position, the piston rod of the hydraulic cylinder is controlled to stop rising. Structure and the rotatable installation structure of the rod body, the operator fine-tunes the inclination angle of the rod body and rotates the rod body to accurately install the grounding wire on the chuck on the equipment. For the removal of the ground wire, the operation process is opposite to the installation operation. It can be seen that with the help of this auxiliary device, only one operator can easily complete the installation or disassembly of the ground wire. With the help of the principle of leverage, the operation is flexible and labor-saving, and the labor intensity is low. At the same time, the ground wire gun body adopts a rotatable The installation structure makes the operation more flexible and the installation more precise. The invention completely solves the operation problem of large-scale ground wire guns.

For the sliding installation structure of the slide seat, a row of rollers matched with the track are respectively installed on both sides of the bottom of the slide seat; The rear position is equipped with a screw nut matched with the lead screw. The sliding seat is installed by using the structure of the roller and the track. The roller can roll on the fixed track and the turning track. Since the turning track and the fixed track adopt a hinged connection structure, there must be a gap between the two joints. Therefore, the roller Arranged in rows, each row includes a plurality of rollers, with the help of this structure, it can effectively prevent the sliding seat from bumping when it passes the track joint.

Regarding the specific structure of the ring-shaped ferrule, the ring-shaped ferrule includes two arc-shaped grooves, one side of the two arc-shaped grooves is hinged by a hinge, and the other side is provided with at least one set of lugs, and each set of two lugs A positioning hole is correspondingly opened on the board, and locking bolts are installed in the two positioning holes when the two arc-shaped grooves are fastened together. The installation method of two arc-shaped grooves is fastened, the structure is simple, and the rod body can be easily loaded and taken out; the structure of the ear plate is combined and fixed with locking bolts, and the rotation of the rod body of the loader and unloader is not affected. The pre-tightening force of the locking bolt can adjust the installation tightness of the rod body of the loader and unloader.

The supporting bearings are installed on the inner wall of the annular hoop through bearing brackets, and four supporting bearings are respectively installed near the openings at both ends of the annular hoop, and two supporting bearings are respectively installed at the two ends of each arc-shaped groove . Four supporting bearings are evenly distributed on the circumference to form a rotating set structure for installing the rod body of the loader. The rotating set structure is provided with a set at the head and tail of the hoop, which can increase the stability of the rod body during operation and prevent the rod from shaking.

The top end of the piston rod of the hydraulic cylinder is connected to the ring collar through a flange, and the ring collar is hinged on the flange connection plate. The ring hoop adopts the flange connection method, which can be easily disassembled and installed. When the specification of the ground gun shaft changes, the hoop matching the shaft specification can be replaced more conveniently and quickly.

Due to the hinged connection structure between the flip support plate and the base, the connection between the two may be unstable or misaligned when bearing weight. Therefore, this case provides two positioning structures.

One of the positioning structures is: the two sides of the rear end of the sliding seat are respectively fixed with positioning sliding shafts extending forward, and the two inner sides of the front end of the bracket are each equipped with a bracket sliding sleeve for the positioning sliding shaft to wear, and the supporting plate is turned over. The two sides of the rear part are respectively equipped with positioning sleeves which can be worn by the positioning slide shaft after the support plate is opened. In this positioning structure, when the positioning sliding shaft slides forward following the sliding seat, it is just inserted into the positioning sleeve, and the sliding cooperation between the positioning sliding shaft and the positioning sleeve ensures more stable and reliable sliding.

Another positioning structure is as follows: a positioning sliding shaft is slidably installed on both sides of the sliding seat on the base, and a bracket sliding sleeve for the positioning sliding shaft is respectively installed on the two inner sides of the front end of the bracket. The rear ends are connected with connecting plates, which are slidably connected to the rear of the base through springs, and positioning sleeves which can be inserted into the positioning shaft after the supporting plates are opened are respectively installed on both sides of the turning support plate rear. In this positioning structure, the positioning sliding shaft does not move with the sliding seat, but relies on the sliding seat to squeeze the connecting plate backward, and the positioning sliding shaft is retracted backward through the connecting plate, and the compression spring is compressed. When the flip support plate is opened, the sliding seat When moving forward, the compression spring is released, thereby pushing the connecting plate and two sliding shafts to move forward, and the sliding shafts are inserted in the positioning sleeve to realize the positioning between the flip support plate and the base to ensure the stability of the support.

Both of the above two positioning mechanisms can make the turning structure more stable, thereby ensuring more stable and reliable sliding of the sliding seat.

A stay rope driven by a winch is installed on the slide, a hanging ring is provided at the bottom of the ground wire gun rod body, and a hook matched with the hanging ring is connected to the end of the stay rope. In specific use, despite the leverage principle, when the ground gun rod body is very long, the moment between the rear end of the rod body and the support point is very small. Therefore, it still requires the operator to spend a lot of effort to tilt the front end of the rod body. The power can pull the rear end of the rod body to move down, thereby replacing manpower, reducing labor intensity and simplifying the operation difficulty.

Four rollers are installed on the bottom of the base, two of the front are directional casters, and two of the rear are universal casters. The combination of directional wheels and universal wheels can ensure straight walking, and the direction can be adjusted through the universal wheels at the rear.

A push handle is fixedly connected to the front of the bracket. When pushing the entire bracket, it is more helpful to borrow force by holding the push handle.

To sum up, the present invention has simple structure, convenient implementation, time-saving and labor-saving operation, accurate and reliable installation, and completely solves the operational problems of large-size loaders and unloaders.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the right view structure of Fig. 1;

Fig. 3 is a structural schematic diagram of another flipping state different from Fig. 2 in the present invention;

Fig. 4 is the concrete structure schematic diagram of the ring ferrule in the present invention;

Fig. 5 is a top structural schematic diagram of the annular ferrule in Fig. 4;

Fig. 6 is a schematic diagram of the first positioning structure between the flip support plate and the base;

Fig. 7 is a schematic diagram of a second positioning structure between the flip support plate and the base;

Fig. 8 is a schematic diagram in another state of Fig. 7;

Figure 9 is a schematic structural view of the ground gun.

Detailed ways

Referring to the accompanying drawings, the multi-stage telescopic ground gun supporting device of the present invention includes a frame support 1, a base 2 is provided at the bottom of the support 1, and a plurality of rollers 3 are installed at the bottom of the base 2. Specifically, four rollers 3 are installed on the bottom of the base 2, the two at the front are directional casters, and the two at the rear are swivel casters. The combination of directional wheels and universal wheels can ensure straight walking, and the direction can be adjusted through the universal wheels at the rear. The base 2 is provided with a fixed track 4 extending in the front-to-back direction, on the fixed track 4 a sliding seat 6 driven by a motor 5 is slidably installed, and the front end of the fixed track 4 is hinged with an overturning track 7 that can be connected therewith. The front end of the base 2 is hinged with an overturning support plate 8 for placing the overturning track 7 , and the front end of the overturning support plate 8 is equipped with a length-adjustable leg 9 . A multi-stage telescopic hydraulic cylinder 10 is vertically installed on the sliding seat 6, and the top end of the piston rod of the hydraulic cylinder is hinged with an openable annular hoop 11, and the inner circumference of the annular hoop 11 is rotatably installed with a plurality of supporting bearings 12. . Wherein, for the convenience of borrowing force, the front portion of the bracket 1 is fixedly connected with a push handle 28 .

With the help of the structure of the bracket 1 and the roller 3, the position of the hydraulic cylinder can be flexibly moved to the installation and operation position of the grounding wire, and the middle part of the grounding gun rod body is erected on the hoop, which is equivalent to providing a support point for the rod body. It is very convenient to flexibly adjust the position of the front chuck 30 by operating the rear end of the rod body; the structure of the slide seat 6 is set so that the support position can be adjusted back and forth, and the operating position can be adjusted more flexibly; the flip track 7 and the flip support plate are set 8. The forward and backward movement distance is increased, and the operation range can be greatly increased without moving the entire bracket 1, and the operation is more flexible and convenient. At the same time, with the help of the folding structure, it does not occupy space and provides convenience for storage and transportation. Utilize the openable annular hoop 11, when the hoop is opened, the middle part of the ground wire gun shaft body is placed in the hoop, and then the hoop is closed, and the support bearing 12 inside the hoop is pressed against the ground wire gun shaft body 29 On the cylindrical surface of the ground gun, the rod body 29 of the ground wire gun is pressed so that there will be no relative sliding between the rod body and the hoop. Since the supporting bearing 12 adopts a structure of rotating installation, the rod body can rotate relative to the hoop, so that the collet 30 can more accurately align the installation position, and the operation is simple and flexible.

The specific installation process is: when the piston rod of the hydraulic cylinder is lowered to the lowest level, the staff controls the motor 5 to move, drives the sliding seat 6 to move, and operates the chuck 30 at the front end of the rod body to clamp the grounding wire on the ground, and then the whole bracket 1 Push it under the high-pressure equipment to control the piston rod of the hydraulic cylinder to rise. The operator uses the principle of leverage to lift the front end of the rod body by pressing down on the rear end of the rod body. When the front end of the rod body is close to the installation position, the piston rod of the hydraulic cylinder is controlled to stop rising. The hinged structure of the sleeve and the rotatable installation structure of the rod body allow the operator to fine-tune the inclination angle of the rod body and rotate the rod body to accurately install the ground wire on the chuck 30 on the equipment. For the removal of the ground wire, the operation process is opposite to the installation operation. It can be seen that with the help of this auxiliary device, only one operator can easily complete the installation or disassembly of the ground wire. With the help of the principle of leverage, the operation is flexible and labor-saving, and the labor intensity is low. At the same time, the ground wire gun body adopts a rotatable The installation structure makes the operation more flexible and the installation more precise. The invention completely solves the operation problem of large-scale ground wire guns.

With reference to the accompanying drawings, a row of rollers 13 cooperating with the track are respectively installed on both sides of the slide seat 6 bottom. Motor 5 is installed on the rear end of base 2, and the power output end of motor 5 is connected with leading screw 14, and the position behind slide seat 6 bottom is equipped with the screw nut 15 that cooperates with leading screw 14. Utilize the structure that the roller 13 cooperates with the track to install the sliding seat 6, the roller 13 can roll on the fixed track 4 and the turning track 7, because the turning track 17 and the fixed track 4 adopt a hinged connection structure, the connecting parts of the two must be There are gaps, therefore, the rollers 13 are arranged in rows, and each row includes a plurality of rollers 13. With this structure, it is possible to effectively prevent the sliding seat 6 from bumping when it passes through the track joint.

Referring to the accompanying drawings, the annular ferrule 11 includes two arc-shaped grooves 111, one side of the two arc-shaped grooves 111 is hinged by a hinge, and the other side is provided with at least one set of ear plates 112, and each set of two ear plates 112 A positioning hole is correspondingly provided on the top respectively, and locking bolts 113 are installed in the two positioning holes when the two arc-shaped grooves 111 are fastened together. The two arc-shaped grooves 111 are fastened and installed, and the structure is simple, which can facilitate the installation and removal of the rod body; the structure of the ear plate 112 is combined and fixed with the locking bolt 113, without affecting the rotation of the ground gun rod body 29. On the premise, by controlling the pre-tightening force of the locking bolt 113, the installation fastening degree of the ground gun shaft body 29 can be adjusted.

Referring to the accompanying drawings, the support bearing 12 is installed on the inner wall of the annular ferrule 11 through the bearing bracket 16, and four support bearings 12 are respectively installed near the openings at both ends of the annular ferrule 11, and two of each arc-shaped groove 111 Two supporting bearings 12 are respectively installed at the ends. Four supporting bearings 12 are evenly distributed on the circumference to form a rotating sleeve structure for installing the ground wire gun rod body 29. The rotating sleeve structure is provided with a set at the head and tail of the hoop respectively, which can increase the stability of the rod body during operation and prevent the rod body from shaking .

Referring to the accompanying drawings, the top end of the piston rod of the hydraulic cylinder is connected to the ring collar 11 through a flange, and the ring collar 11 is hinged on the flange connection plate 17 . Annular hoop 11 adopts the mode of flange connection, can be easily disassembled and installed, and when ground gun shaft body 29 specification changes, can more conveniently and swiftly replace the hoop cover that matches with shaft specification.

Due to the hinged connection structure between the flip support plate 8 and the base 8, the connection between the two may be unstable or dislocated when bearing weight. Therefore, this case provides two positioning structures.

One of the positioning structures refers to Figure 6: the two sides of the rear end of the sliding seat 6 are respectively fixed with positioning sliding shafts 18 extending forward, and the two inner sides of the front end of the bracket 1 are each equipped with a bracket sliding sleeve for the positioning sliding shaft 18 to wear. 19. Positioning sleeves 20 that can be worn by the positioning slide shaft 18 after the support plate is opened are respectively installed on both sides of the rear portion of the turning support plate 8 . In this positioning structure, when the positioning sliding shaft 18 slides forward following the sliding seat 6, it is just inserted into the positioning sleeve 20, and the sliding cooperation between the positioning sliding shaft 18 and the positioning sleeve 20 ensures more stable and reliable sliding.

Refer to Figure 7 and Figure 8 for the second positioning structure: a positioning sliding shaft 18 is slidably installed on both sides of the sliding seat 6 on the base 2, and a positioning sliding shaft 18 is installed on the two inner sides of the front end of the bracket 1 respectively. Bracket sliding sleeve 19, connecting plate 21 is connected between the rear end of positioning slide shaft 18, and connecting plate 21 is slidably connected to the rear portion of base 2 by spring 22, and the both sides of overturning supporting plate 8 rear portion are respectively installed on the supporting plate. The positioning sleeve 20 that can be inserted into the positioning shaft after opening. In this positioning structure, the positioning sliding shaft 18 does not move with the sliding seat 6, but relies on the backward movement of the sliding seat 6 to squeeze the connecting plate 21, and the positioning sliding shaft 18 is retracted backward through the connecting plate 21, and the compression spring 22 is compressed. , when the overturning support plate 8 is opened and the sliding seat 6 moves forward, the compression spring 22 is released, thereby pushing the connecting plate 21 and the two sliding shafts forward, and the sliding shafts are inserted in the positioning sleeve 20 to realize the overturning of the supporting plate The positioning between 8 and the base 2 ensures the stability of the support. Both of the above two positioning mechanisms can make the turning structure more stable, thereby ensuring more stable and reliable sliding of the sliding seat.

With reference to accompanying drawing, slide 6 is equipped with stay cord 25 driven by winch 24, the bottom end of ground gun rod body is provided with link 26, and the end of stay cord 25 is connected with the hook 27 that cooperates with link 26. In specific use, despite the leverage principle, when the ground gun rod body is very long, the moment between the rear end of the rod body and the support point is very small. Therefore, it still requires the operator to spend a lot of effort to tilt the front end of the rod body. The power can pull the rear end of the rod body to move down, thereby replacing manpower, reducing labor intensity and simplifying the operation difficulty.

To sum up, the present invention is not limited to the above specific embodiments. Those skilled in the art can make several changes or modifications without departing from the spirit and scope of the present invention. The above changes or modifications all fall within the protection scope of the present invention.

Claims (9)

1. a kind of multi-stage telescopic ground wire gun support arrangement, including frame set（1）, holder（1）Bottom be arranged pedestal（2）, Pedestal（2）Bottom multiple idler wheels are installed（3）, it is characterized in that the pedestal（2）It is equipped with the fixation extended along the longitudinal direction Track（4）, trapped orbit（4）On be slidably fitted with by motor（5）The slide of driving（6）, trapped orbit（4）Front end pass through hinge Equipped with the overturning track that can be connected therewith（7）；Pedestal（2）Front end be hinged with for place overturning track（7）Turning-over support Plate（8）, turning-over support plate（8）Front end length-adjustable supporting leg is installed（9）；Slide（6）On multi-stage expansion is vertically installed Formula hydraulic cylinder（10）, the top end part of hydraulic cylinder piston rod is hinged with the annular cuff of opening and closing type（11）, annular cuff（11）'s Internal border is rotatablely installed multiple spring bearings（12）；The slide（6）One row is installed respectively and is coordinated with track in the both sides of bottom Roller（13）；Motor（5）Mounted on pedestal（2）Rear end, motor（5）Power output end be connected with leading screw（14）, sliding Seat（6）It is equipped on the rearward position of bottom and leading screw（14）The screw of cooperation（15）.

2. multi-stage telescopic ground wire gun support arrangement as described in claim 1, it is characterized in that the annular cuff（11）Including Two arc grooves（111）, two arc grooves（111）By hinge, the hinged, other side is correspondingly arranged at least one set for wherein side Otic placode（112）, every group of two pieces of otic placodes（112）Upper correspond to respectively opens up a location hole, in two arc grooves in two location holes （111）Clamping screw is coated with when fastening（113）.

3. multi-stage telescopic ground wire gun support arrangement as described in claim 1, it is characterized in that the spring bearing（12）Pass through The support of bearing（16）Mounted on annular cuff（11）Inner wall on, close to annular cuff（11）On the position of both ends open respectively Four spring bearings are installed（12）, each arc groove（111）Two ends respectively installation two spring bearings（12）.

4. multi-stage telescopic ground wire gun support arrangement as described in claim 1, it is characterized in that the top of the hydraulic cylinder piston rod End and annular cuff（11）Between pass through flanged joint, annular cuff（11）Hinge is mounted in flange terminal pad（17）On.

5. multi-stage telescopic ground wire gun support arrangement as described in claim 1, it is characterized in that the slide（6）The both sides of rear end It is respectively and fixedly connected with the positioning slide-bar extended forward（18）, holder（1）One is respectively installed for positioning slide-bar in two inside portions of front end （18）The holder sliding sleeve installed（19）, turning-over support plate（8）The both sides at rear portion, which are separately installed with after support plate opening, can supply to determine Position slide-bar（18）The abutment sleeve installed（20）.

6. multi-stage telescopic ground wire gun support arrangement as described in claim 1, it is characterized in that the pedestal（2）On in slide （6）Both sides be slidably fitted with respectively one positioning slide-bar（18）, holder（1）One is respectively installed for positioning in two inside portions of front end Slide-bar（18）The holder sliding sleeve installed（19）, position slide-bar（18）Rear end between be connected with yoke plate（21）, yoke plate（21）Pass through Spring（22）It is slidably connected at pedestal（2）Rear portion, turning-over support plate（8）The both sides at rear portion are separately installed with opens in support plate The abutment sleeve that can be inserted afterwards for locating shaft（20）.

7. multi-stage telescopic ground wire gun support arrangement as described in claim 1, it is characterized in that the slide（6）On be equipped with by Hoist engine（24）The drawstring of driving（25）, the bottom end of ground wire barral of a gun body is equipped with link（26）, drawstring（25）End be connected with Link（26）The hook of cooperation（27）.

8. multi-stage telescopic ground wire gun support arrangement as described in claim 1, it is characterized in that the pedestal（2）Bottom installation There are four idler wheels（3）, two of front be direction-caster, two of rear portion be universal caster wheel.

9. multi-stage telescopic ground wire gun support arrangement as described in claim 1, it is characterized in that the holder（1）Front it is affixed There is handle（28）.