CN111077349B

CN111077349B - Aerial test clamps for distribution network transformers and distribution network transmission lines

Info

Publication number: CN111077349B
Application number: CN201910989911.4A
Authority: CN
Inventors: 王红新; 姚湘予; 席超; 冯乳慧
Original assignee: Wuzhi Power Supply Co of State Grid Henan Electric Power Co Ltd; State Grid Corp of China SGCC
Current assignee: Wuzhi Power Supply Co of State Grid Henan Electric Power Co Ltd; State Grid Corp of China SGCC
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2021-10-01
Anticipated expiration: 2039-10-17
Also published as: CN111077349A

Abstract

The invention discloses a high-altitude test clamp used for distribution network transformers and distribution network transmission lines. The upper end of the extension rod is welded with a lower clamp, the upper end of the lower clamp is welded with a connecting spring, the upper end of the connection spring is welded with an upper clamp, and the upper end of the lower clamp is welded with two symmetrically arranged clamping blocks, The side walls of the two clamping blocks are provided with clamping slots, and the lower ends of the upper pliers are welded with two symmetrically arranged pressure blocks, and the two pressure blocks are respectively located directly above the two clamping grooves. The advantage is that: by setting up the pole, the upper clamp and the lower clamp are raised, the operator can detect the high line on the ground, and does not need to climb to the high place, which can eliminate the personal safety of the operator caused by climbing. It can ensure the safety of operators and avoid the occurrence of security accidents.

Description

High-altitude test clamp for distribution network transformer and distribution network transmission line

Technical Field

The invention relates to the technical field of power distribution network transmission line detection, in particular to high-altitude test tongs for a power distribution network transformer and a power distribution network transmission line.

Background

With the development of science and technology, the living standard of people is increasingly improved, and the demand of various articles in life on electric power is large, so that the erection of an electric power circuit is wider, and more manpower and material resources also need to be invested to obtain construction and maintenance;

in order to provide high-quality electric energy resources, operators of the electric power system need to patrol, test and overhaul the electric transmission line every day. At present, most of overhaul is that an operator climbs onto a telegraph pole personally to test power equipment, so that greater risks and potential safety hazards exist, and power accidents also happen occasionally; there is a need for a device capable of detecting a high line on the ground to solve the problem that the personal safety of an operator is threatened.

Disclosure of Invention

The invention aims to solve the problems that the detection process needs to be artificially raised and the operation process is unsafe in the prior art, and provides high-altitude test tongs for a distribution network transformer and a distribution network transmission line.

In order to achieve the purpose, the invention adopts the following technical scheme: a high altitude test pincers for distribution network transformer and distribution network transmission line, including the pole setting, the groove of accomodating has been seted up to the upper end of pole setting, the sealed sliding connection of inner wall in groove of accomodating has the extension bar, the last upper end welding of extension bar has lower pincers, the upper end welding of lower pincers has connecting spring, connecting spring's upper end welding has last pincers, the upper end welding of lower pincers has the screens piece that two symmetries set up, two the draw-in groove has all been seted up to the lateral wall of screens piece, the lower extreme welding of last pincers has the briquetting that two symmetries set up, two the briquetting is located two draw-in grooves respectively directly over, the bottom of last pincers is equipped with clamping mechanism, the inside of accomodating the groove is equipped with the air-blowing device that is used for raising the extension bar, the lateral wall of pole setting is equipped with the roll-up device that is used for controlling the removal of last pincers.

In foretell high altitude test pincers for distribution network transformer and distribution network transmission line, clamping mechanism is including seting up in the groove of scraping of last pincers bottom, the common welding of the both sides inner wall of scraping the groove has the slide bar, sliding connection has the slider to run through the lateral wall of slide bar, the common welding of slider and the inner wall of scraping the groove has movable spring, the lateral wall of slider is fixed with the stay cord.

In the aerial test pincers for the power distribution network transformer and the power distribution network transmission line, the fixing blocks are welded on the inner walls of the scraping grooves, the sliding rods penetrate through the fixing blocks, the through holes are formed in the side walls of the fixing blocks in a penetrating mode, and the pull ropes penetrate through the through holes and are connected with the inner walls of the through holes in a sliding mode.

In foretell high altitude test pincers for distribution network transformer and distribution network transmission line, the air-blowing device is including welding the baffle on accomodating the inslot wall, the baffle offsets with the bottom of extension bar, the lower extreme welding of baffle has reset spring, reset spring's lower extreme welding has the push pedal, the lateral wall of baffle runs through and has seted up the venthole, the lateral wall of accomodating the groove runs through and has seted up the inlet port, the lateral wall of accomodating the groove runs through and has seted up the hole that loses heart, the downthehole wall that loses heart supports mutually has the chock.

In foretell high altitude test pincers that are used for distribution network transformer and distribution network transmission line, the hole of disappointing is located the baffle upper end, the inlet port is located the baffle below, the inlet port all is equipped with the check valve with the downthehole wall of giving vent to anger, the inside check valve of inlet port accesss to accomodate the groove outside to accomodating the inslot portion by the pole setting, the inside check valve of venthole accesss to by baffle below space to baffle top space.

In foretell high altitude test pincers for distribution network transformer and distribution network transmission line, the turn trough has been seted up to the lateral wall of pole setting, the turn trough inner wall rotates through the bearing and is connected with the pivot, the circumference outer wall welding of pivot has the commentaries on classics piece, the shrink groove has been seted up to the pivot lateral wall, the inner wall sliding connection in shrink groove has the stopper, the stopper is kept away from the one end welding in shrink groove and is had the connecting rod, the connecting rod is kept away from spacing one end and is rotated and be connected with the extension rod, the extension groove has been seted up to the lateral wall of extension rod, extension groove inner wall sliding connection has the baffle, the baffle is kept away from the one end welding in extension groove and is had the province pole, the province pole is kept away from the one end welding of extension rod and is had the handle.

In foretell high altitude test pincers for distribution network transformer and distribution network transmission line, the roll-up device is including seting up the groove that receive and releases on the pole setting lateral wall, the inner wall that receives and releases the groove rotates through the bearing and is connected with the receiving and releasing pole, the pull groove has been seted up to the lateral wall of receiving and releasing pole, the inner wall sliding connection of pull groove has the dog, the one end welding that the dog was kept away from to the dog has the pull rod, the one end rotation that the dog was kept away from to the pull rod is connected with the bull stick, the one end welding that the dog was kept away from to the bull stick has the turning handle, the one end that the last pincers was kept away from to the stay cord runs through down the pincers and receive and release pole fixed connection.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the vertical rods are arranged, so that the upper pliers and the lower pliers are lifted, an operator can detect a high-position line on the ground without climbing to a high position, the threat of climbing to the personal safety of the operator can be eliminated, the safety of the operator can be ensured, and safety accidents are avoided;

2. according to the invention, the pull rope is retracted and extended by rotating the retraction and extension rod, the upper clamp moves towards the lower clamp along with the retraction of the pull rope, and then the pressing block moves towards the inside of the clamping groove, so that the circuit is further clamped, and the stability of the measuring process is ensured;

3. according to the invention, the slide block moves back and forth along the slide rod by the reciprocating retraction of the pull rope, so that the slide block can scrape the surface of the line after the line is clamped, the accumulated snow and ice blocks on the surface of the line can be cleaned, good functionality can be maintained in rainy and snowy weather in winter, and the detection of the line is facilitated;

4. according to the invention, the rotating block is driven to move in a reciprocating manner by rotating the rotating shaft, so that the push plate can continuously pump external air to the inside of the accommodating groove, the air at the lower part of the extension bar is continuously accumulated, the height of the extension bar is effectively adjusted along with the continuous rotation of the rotating shaft, and a good detection effect can be achieved when lines with different heights are faced;

5. according to the invention, the extension rod is pulled out of the extension groove, so that the rotating force arm formed by rotating the rotating shaft is greatly increased, the force required for rotating the rotating shaft is greatly reduced, the rotating shaft can be very easily rotated, and the height of the extension rod can be conveniently adjusted.

Drawings

FIG. 1 is a schematic structural diagram of a high-altitude test clamp for a distribution network transformer and a distribution network transmission line, which is provided by the invention;

FIG. 2 is a side cross-sectional view of the high-altitude test clamp for distribution network transformers and distribution network transmission lines according to the present invention;

FIG. 3 is a schematic structural diagram of an upper clamp and a lower clamp part after the high-altitude test clamp for the distribution network transformer and the distribution network transmission line is clamped;

FIG. 4 is an enlarged view of portion A of FIG. 2;

fig. 5 is an enlarged schematic view of a portion B in fig. 2.

In the figure: the device comprises a vertical rod 1, a containing groove 2, an extension rod 3, a lower clamp 4, a connecting spring 5, an upper clamp 6, a clamping block 7, a clamping groove 8, a pressing block 9, a scraping groove 10, a sliding rod 11, a sliding block 12, a fixing block 13, a through hole 14, a pull rope 15, a clapboard 16, an air outlet hole 17, a return spring 18, a push plate 19, an air inlet hole 20, a storage groove 21, a storage rod 22, a pull groove 23, a stop block 24, a pull rod 25, a rotating rod 26, a rotating handle 27, a rotating groove 28, a rotating shaft 29, a rotating block 30, a contraction groove 31, a limiting block 32, a connecting rod 33, an extension rod 34, a baffle 35, an extension groove 36, a labor-saving rod 37, a handle 38, an air leakage hole 39, a plug block 40 and a movable spring 41.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-5, high altitude test pincers for distribution network transformer and distribution network transmission line, including pole setting 1, the upper end of pole setting 1 has been seted up and has been accomodate groove 2, the inner wall sealing sliding connection who accomodates groove 2 has extension bar 3, the welding of the upper end of extension bar 3 has lower pincers 4, the welding of the upper end of lower pincers 4 has connecting spring 5, the welding of the upper end of connecting spring 5 has upper pincers 6, the welding of the upper end of lower pincers 4 has screens piece 7 that two symmetries set up, draw-in groove 8 has all been seted up to the lateral wall of two screens pieces 7, the welding of the lower extreme of upper pincers 6 has the briquetting 9 that two symmetries set up, two briquetting 9 are located two draw-in grooves 8 respectively, the bottom of upper pincers 6 is equipped with clamping mechanism, the inside of accomodating groove 2 is equipped with the air-blowing device that is used for raising extension bar 3, the lateral wall of pole setting 1 is equipped with the roll-up device that is used for controlling upper pincers 6 to remove.

The clamping mechanism comprises a scraping groove 10 arranged at the bottom of the upper pliers 6, sliding rods 11 are welded on the inner walls of two sides of the scraping groove 10 together, the side wall of each sliding rod 11 is connected with a sliding block 12 in a penetrating and sliding mode, a movable spring 41 is welded on the sliding block 12 and the inner wall of the scraping groove 10 together, and a pull rope 15 is fixed on the side wall of each sliding block 12; a fixing block 13 is welded on the inner wall of the scraping groove 10, the sliding rod 11 penetrates through the fixing block 13, a through hole 14 is formed in the side wall of the fixing block 13 in a penetrating mode, and a pull rope 15 penetrates through the through hole 14 and is connected with the inner wall of the through hole 14 in a sliding mode; the stiffness coefficient of the movable spring 41 is larger than that of the connecting spring 5, and the connecting spring 5 contracts or stretches first under the same tensile force.

The air blowing device comprises a partition plate 16 welded on the inner wall of the accommodating groove 2, the partition plate 16 abuts against the bottom of the extension rod 3, a return spring 18 is welded at the lower end of the partition plate 16, a push plate 19 is welded at the lower end of the return spring 18, an air outlet hole 17 is formed in the side wall of the partition plate 16 in a penetrating manner, an air inlet hole 20 is formed in the side wall of the accommodating groove 2 in a penetrating manner, an air release hole 39 is formed in the side wall of the accommodating groove 2 in a penetrating manner, a plug block 40 abuts against the inner wall of the air release hole 39, and the plug block 40 is made of elastic rubber materials and has good sealing performance; the air release hole 39 is located at the upper end of the clapboard 16, the air inlet hole 20 is located below the clapboard 16, the inner walls of the air inlet hole 20 and the air outlet hole 17 are both provided with a one-way valve, the one-way valve inside the air inlet hole 20 is led to the outside of the accommodating groove 2 by the upright stanchion 1 to the inside of the accommodating groove 2, and the one-way valve inside the air outlet hole 17 is led to the space from the lower part of the clapboard 16 to the space above the clapboard 16.

The rotating groove 28 has been seted up to the lateral wall of pole setting 1, the rotating groove 28 inner wall is connected with pivot 29 through the bearing rotation, the circumference outer wall welding of pivot 29 has commentaries on classics piece 30, shrink groove 31 has been seted up to pivot 29 lateral wall, shrink groove 31's inner wall sliding connection has stopper 32, shrink groove 31 is square groove, stopper 32's rotation can drive pivot 29 and rotate, stopper 32 keeps away from the one end welding of shrink groove 31 and has connecting rod 33, connecting rod 33 keeps away from the one end rotation of stopper 32 and is connected with extension rod 34, extension groove 36 has been seted up to extension rod 34's lateral wall, extension groove 36 inner wall sliding connection has baffle 35, the one end welding that extension groove 36 was kept away from to baffle 35 has laborsaving pole 37, laborsaving pole 37 keeps away from the one end welding of extension rod 34 has handle 38, stopper 32 and baffle 35 are the permanent magnet, can keep the stability of position through magnetic force adsorption, avoid random removal to cause the inconvenience of carrying.

The winding device comprises a winding and unwinding groove 21 formed in the side wall of the upright rod 1, the inner wall of the winding and unwinding groove 21 is rotatably connected with a winding and unwinding rod 22 through a bearing, the side wall of the winding and unwinding rod 22 is provided with a pull groove 23, the inner wall of the pull groove 23 is slidably connected with a stop block 24, the pull groove 23 is a square groove, the rotation of the stop block 24 can drive the winding and unwinding rod 22 to rotate, the stop block 24 is a magnetic block and can be adsorbed on the inner wall of the pull groove 23, the rotating rod 26 is prevented from being moved out randomly, the rotating rod 26 is located in the pull groove 23 when not used, the carrying convenience can be greatly guaranteed, and the overall structure is compact; a pull rod 25 is welded at one end of the stop block 24, which is far away from the bottom of the pull groove 23, a rotating rod 26 is rotatably connected at one end of the pull rod 25, which is far away from the stop block 24, a rotating handle 27 is welded at one end of the rotating rod 26, which is far away from the stop block 24, and one end of the pull rope 15, which is far away from the upper tong 6, penetrates through the lower tong 4 and is fixedly connected with the retraction rod 22; make it break away from inside the pole 22 of receiving and releasing through pulling out bull stick 26, then rotate bull stick 26 and make it perpendicular with the pole 22 of receiving and releasing, and then increase and rotate the pole 22 of receiving and releasing and make the arm of force, required strength when reducing to rotate the pole 22 of receiving and releasing, and then make the receive and release more convenient laborsaving of stretching cord 15.

In the invention, when the power transmission line is detected, the bottom of the upright stanchion 1 is held by hand, the extension rod 34 is pulled outwards, the extension rod 34 is completely separated from the upright stanchion 1, the extension rod 34 is rotated to be vertical to the connecting rod 33, the extension rod 34 is held by hand and rotated to drive the connecting rod 33 and the rotating shaft 29 to synchronously rotate, the rotating block 30 rotates along with the rotating shaft 29 in the rotating process, the rotating block 30 intermittently contacts with the push plate 19 above the rotating block to push the push plate 19 to move upwards, air between the push plate 19 and the partition plate 16 is compressed in the moving process of the push plate 19, the air between the push plate 19 and the partition plate 16 passes through the air outlet 17 to enter the upper end of the partition plate 16 under the pressure effect, the extension rod 3 is connected with the inner wall of the accommodating groove 2 in a sealing and sliding manner, the air cannot leak after passing through the partition plate 16, the air occupies a certain space, and further pushes the extension rod 3 to move upwards, the whole height is adjusted;

when the rotating block 30 is not in contact with the push plate 19, the push plate 19 moves downwards under the action of the elastic force of the return spring 18, and as the distance between the push plate 19 and the partition plate 16 is increased after the push plate 19 moves downwards, the air pressure between the push plate and the partition plate is reduced, external air enters the accommodating groove 2 through the air inlet hole 20 to supplement the air, so that the extension rod 3 can be continuously pushed upwards until the extension rod 3 is adjusted to a proper height;

in order to reduce the force needed by rotating the extension rod 34, the labor-saving rod 37 can be pulled out, so that the rotating force arm is increased, the force needed to be applied by rotating the rotating shaft 29 is greatly reduced, and the adjustment process of the position of the extension rod 3 is more labor-saving and convenient;

after the extension bar 3 rises, the lower pliers 4 and the upper pliers 6 are at a proper height and are in contact with a circuit device, at the moment, the vertical bar 1 can be moved to enable a part to be detected to be located inside the clamping groove 8, then the retracting and releasing rod 22 is rotated to enable the retracting and releasing rod 22 to drive the pull rope 15 to be wound, along with the reduction of the releasing length of the pull rope 15, the pull rope firstly pulls the whole upper pliers 6 to compress the connecting spring 5 to move towards one end of the lower pliers 4, further the pressing block 9 enters the clamping groove 8 to clamp the part to be detected, along with the continuous contraction of the pull rope 15, the sliding block 12 can be driven to slide along the sliding rod 11 until the sliding block 12 abuts against the fixing block 13, and the circuit can be measured and detected by electrically connecting the measuring equipment through the clamping block 7;

when snow is over-frozen in a rainy and snowy weather line in winter, the pull rope 15 can be repeatedly retracted and extended, the slide block 12 resets under the elastic action of the movable spring 41 when the pull rope 15 is released, and contacts with the line and slides to one end of the fixed block 13 when the pull rope is retracted, so that the reciprocating scraping treatment on the surface of the line is realized through the reciprocating retraction and extension of the pull rope 15, the cleaning of snow ice blocks on the surface of the line is realized, and the measurement and the detection in winter are convenient.

Can take off chock 40 after detecting to finish for receive the inside air of groove 2 and flow out by disappointing hole 39, and then make extension bar 3 lose to support and contract to receiving inside groove 2, make whole device portable.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A high altitude test pincers for distribution network transformer and distribution network transmission line, includes pole setting (1), its characterized in that, the upper end of pole setting (1) is equipped with accomodates groove (2), the inner wall of accomodate groove (2) is connected with extension bar (3) in a sealing and sliding manner, the upper end of extension bar (3) is welded with lower pincers (4), the upper end of lower pincers (4) is welded with connecting spring (5), the upper end of connecting spring (5) is welded with upper pincers (6), the upper end of lower pincers (4) is welded with two symmetrically arranged clamping blocks (7), the side wall of two clamping blocks (7) is equipped with clamping groove (8), the lower end of upper pincers (6) is welded with two symmetrically arranged pressing blocks (9), two pressing blocks (9) are respectively located right above two clamping grooves (8), the bottom of upper pincers (6) is equipped with clamping mechanism, an air blowing device for lifting the extension bar (3) is arranged in the accommodating groove (2), and a winding device for controlling the upper pliers (6) to move is arranged on the side wall of the upright bar (1);

clamping mechanism is including offering scraping groove (10) in last pincers (6) bottom, the common welding of both sides inner wall of scraping groove (10) has slide bar (11), sliding connection is run through to the lateral wall of slide bar (11) has slider (12), the common welding of slider (12) and the inner wall of scraping groove (10) has activity spring (41), the lateral wall of slider (12) is fixed with stay cord (15).

2. The overhead test pliers for the distribution network transformer and the distribution network transmission line of claim 1, wherein a fixing block (13) is welded on the inner wall of the scraping groove (10), the sliding rod (11) penetrates through the fixing block (13), a through hole (14) is formed in the side wall of the fixing block (13) in a penetrating mode, and the pull rope (15) penetrates through the through hole (14) and is in sliding connection with the inner wall of the through hole (14).

3. The high altitude test pincers for distribution network transformer and distribution network transmission line of claim 1, characterized in that, the air-blowing device is including welding baffle (16) on accomodating groove (2) inner wall, baffle (16) offset with the bottom of extension bar (3), the lower extreme welding of baffle (16) has reset spring (18), the lower extreme welding of reset spring (18) has push pedal (19), the lateral wall of baffle (16) runs through and has seted up venthole (17), the lateral wall of accomodating groove (2) runs through and has seted up inlet port (20), the lateral wall of accomodating groove (2) runs through and has seted up disappointing hole (39), disappointing hole (39) inner wall offsets there is chock (40).

4. The high altitude test pincers for distribution network transformer and distribution network transmission line of claim 3, characterized in that, disappearing hole (39) are located baffle (16) upper end, inlet port (20) are located baffle (16) below, inlet port (20) all are equipped with the check valve with venthole (17) inner wall, the inside check valve of inlet port (20) accesss to accomodate groove (2) outside to accomodating inside groove (2) by pole setting (1), the inside check valve of venthole (17) accesss to by baffle (16) below space to baffle (16) top space.

5. The high-altitude test clamp for the distribution network transformer and the distribution network transmission line according to claim 4, wherein a rotating groove (28) is formed in the side wall of the upright rod (1), a rotating shaft (29) is rotatably connected to the inner wall of the rotating groove (28) through a bearing, a rotating block (30) is welded to the outer wall of the rotating shaft (29) in the circumferential direction, a contracting groove (31) is formed in the side wall of the rotating shaft (29), a limiting block (32) is slidably connected to the inner wall of the contracting groove (31), a connecting rod (33) is welded to one end, away from the contracting groove (31), of the limiting block (32), an extending rod (34) is rotatably connected to one end, away from the limiting block (32), of the connecting rod (33), an extending groove (36) is formed in the side wall of the extending rod (34), a baffle (35) is slidably connected to the inner wall of the extending groove (36), a labor-saving rod (37) is welded to one end, away from the extending groove (36), of the baffle (35), a handle (38) is welded at one end of the labor-saving rod (37) far away from the extension rod (34).

6. The high-altitude test clamp for the power distribution network transformer and the power distribution network transmission line according to claim 2, wherein the winding device comprises a winding and unwinding groove (21) formed in the side wall of the upright rod (1), a winding and unwinding rod (22) is rotatably connected to the inner wall of the winding and unwinding groove (21) through a bearing, a pull groove (23) is formed in the side wall of the winding and unwinding rod (22), a stop block (24) is slidably connected to the inner wall of the pull groove (23), a pull rod (25) is welded to one end, away from the bottom of the pull groove (23), of the stop block (23) of the stop block (24) of the pull rod (25) is rotatably connected to a rotating rod (26), a rotating handle (27) is welded to one end, away from the upper clamp (6) of the pull rope (15), penetrates through the lower clamp (4) and is fixedly connected with the winding and unwinding rod (22).