CN211668751U - Load and torque force test device for live working insulating holding rod of power transmission line - Google Patents

Load and torque force test device for live working insulating holding rod of power transmission line Download PDF

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Publication number
CN211668751U
CN211668751U CN202020027820.0U CN202020027820U CN211668751U CN 211668751 U CN211668751 U CN 211668751U CN 202020027820 U CN202020027820 U CN 202020027820U CN 211668751 U CN211668751 U CN 211668751U
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transmission line
pole
live working
insulating
sides
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CN202020027820.0U
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贾小斌
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Baoji Meiguang Electric Equipment Co ltd
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Baoji Meiguang Electric Equipment Co ltd
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Abstract

The utility model provides an insulating pole loading, torsion test device of embracing of transmission line live working. Insulating armful pole loading of transmission line live working, torsion test device include: a main body; the bottoms of the two upright columns are fixed on two sides of the top of the main machine body, and displacement sensors are arranged on the inner sides of the two upright columns; and the adjusting assembly is arranged between the two upright posts. The utility model provides an insulating armful of pole loading, torsion test device of holding of transmission line live working have in the use each department's impetus compressive value to holding the pole and master, also can be according to the requirement of site work, verify through the experiment that this time hold the pole can satisfy the on-the-spot normal use, thereby avoid the personnel of high altitude construction to take place because of holding the unsafe accident that the pole trouble leads to, and then guarantee constructor's personal safety, also ensure simultaneously that the construction is smooth and accomplish in predetermined time limit for a project.

Description

Load and torque force test device for live working insulating holding rod of power transmission line
Technical Field
The utility model relates to an electric power machine field especially relates to an insulating pole loading, torsion test device of embracing of transmission line live working.
Background
At present in the work of electrical power rush-repair in China, the use of insulating armful of pole is very extensive, because the restriction of single armful of pole height, often need increase another armful of pole on armful of pole and satisfy on-the-spot normal use, nevertheless embrace the junction of pole and armful of pole, if connect unstably, can lead to the staff of being under construction to drop from the high altitude, cause constructor bodily injury, delay the time limit for a project moreover, can not in time restore the circuit, influence normal use, the wholeness ability direct influence of armful pole is to salvage the work and can be smooth, safety, the completion of being prudent.
In prior art, do not have stress check out test set when not having the pole to embrace the pole use, in case the emergence accident easily causes great casualties when embracing the pole when in-service use for whether the pole is up to standard can't carry out the detection and the experiment of formulating the project.
Therefore, it is necessary to provide a device for testing the load and torque of the insulating holding pole in live working of the power transmission line to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an insulating pole loading, torsion test device of embracing of transmission line live working has solved and has not embraced the pole to insulating and detect the problem of whether safe experimental facilities.
In order to solve the technical problem, the utility model provides an insulating pole loading, torsion test device of embracing of transmission line live working includes: a main body; the bottoms of the two upright columns are fixed on two sides of the top of the main machine body, and displacement sensors are arranged on the inner sides of the two upright columns; the adjusting assembly is arranged between the two upright posts; the adjusting assembly comprises a top beam and a cross beam, wherein the top beam is provided with a rotating mechanism, and the cross beam is provided with a connecting mechanism; the tension sensor is arranged on the adjusting assembly; the displacement sensors are arranged at the tops of the two upright columns; the limiting clamping ring is fixed on the front surface of the top beam; and the bottom of the auxiliary supporting plate is fixed at the top of the main machine body and is positioned between the two stand columns.
Preferably, the inside of stand is provided with servo motor, and servo motor is provided with two altogether, two servo motor respectively with the back timber with looks adaptation between the crossbeam.
The whole equipment of main unit body of insulating armful pole loading of transmission line live working, torsion test device need use the conveyer at the in-process of transportation, including the transport case, the dashpot has been seted up to the bottom of transport case inner wall, fixedly connected with bracing piece between the both sides of dashpot inner wall, buffer spring, two have all been cup jointed to the both sides of bracing piece the equal fixedly connected with horizontal slider in one side that buffer spring is relative, two horizontal slider's top all rotates and is connected with first gangbar.
Preferably, two the top of first gangbar is rotated and is connected with the lifter plate, the top fixedly connected with back shaft at bracing piece center, the surface of back shaft with lifter plate sliding connection, the both sides at lifter plate top are all rotated and are connected with the second gangbar, spacing spout has been seted up in the left side of transport case inner wall to the lift hole has been seted up on the right side of transport case.
Preferably, the top of the two second linkage rods is rotatably connected with a buffering mounting plate, the top of the buffering mounting plate is provided with a limiting moving groove, the left side of the buffering mounting plate is fixedly connected with a limiting sliding block, the surface of the limiting sliding block is slidably connected with the inner surface of the limiting sliding groove, the limiting moving groove is a T-shaped groove, and the inner surface of the limiting moving groove is slidably connected with two moving blocks.
Preferably, the two moving blocks are of a T-shaped structure, the tops of the two moving blocks are fixedly connected with clamping plates, one opposite sides of the two clamping plates are fixedly connected with buffer plates, and the two sides of the top of the buffer mounting plate are fixedly connected with fixing plates.
Preferably, adjusting rods are arranged on the two fixing plates, an adjusting disc is fixedly connected to the right end of each adjusting rod, a plurality of positioning holes are formed in the adjusting disc, positioning pin shafts are arranged between the positioning holes and the fixing plates, the surface of each adjusting rod is of a reverse double-thread structure, and the surface of each adjusting rod is in threaded connection with the surface of the two clamping plates.
Compared with the prior art, the utility model provides an insulating armful of pole loading, torsion test device of transmission line live working has following beneficial effect:
the utility model provides an insulating armful of pole loading of transmission line live working, torsion test device, can test the size of embracing the pole and embracing the junction between the pole and bearing the moment of torsion, the resistance to compression value of each department's impetus in the pole use is mastered, also can be according to the requirement of site work, verify through the experiment that this time embrace the pole can satisfy the normal use on-the-spot, thereby avoid the personnel of high altitude work to take place the unsafe accident that leads to because of embracing the pole trouble, and then guarantee constructor's personal safety, also ensure the construction simultaneously smoothly and accomplish in predetermined time limit for a project.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of the device for testing the load and the torque of the live-wire work insulated holding pole of the power transmission line provided by the present invention;
FIG. 2 is a cross-sectional view of the portion of the adjustment assembly shown in FIG. 1;
FIG. 3 is a top view of the ensemble shown in FIG. 1;
FIG. 4 shows a mechanical structure of the torsion testing apparatus;
FIG. 5 shows a mechanical structure of the device for testing the strength of the foot-operated crosspiece;
FIG. 6 is a mechanical structure of the strength testing device for multi-section combination joints;
FIG. 7 is a system block diagram of a servo system portion;
fig. 8 is a schematic structural diagram of a transportation device of the experimental facility provided by the present invention;
fig. 9 is a schematic view of the structure of the dial portion shown in fig. 8.
Reference numbers in the figures: 1. the main engine body, 2, the stand column, 3, the adjusting component, 31, the top beam, 32, the crossbeam, 33, the rotating mechanism, 34, the connecting mechanism, 4, the tension sensor, 5, the displacement encoder, 6, the limiting snap ring, 7, the support frame, 8, the holding rod, 81, the pedal crosspiece, 9, the auxiliary support plate, 10, the transport case, 101, the buffer slot, 102, the support rod, 103, the buffer spring, 104, the horizontal slider, 105, the first linkage rod, 106, the lifter plate, 107, the support shaft, 108, the second linkage rod, 109, the limiting slide slot, 1010, the lifting hole, 11, the buffer mounting plate, 111, the limiting moving slot, 112, the limiting slider, 12, the moving block, 13, the clamping plate, 14, the buffer plate, 15, the fixed plate, 151, the adjusting rod, 152, the adjusting disk, 1521, the positioning hole, 153, and the positioning pin.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of an apparatus for testing load and torque of an insulating holding rod for live working of a power transmission line according to the present invention; FIG. 2 is a cross-sectional view of the portion of the adjustment assembly shown in FIG. 1; FIG. 3 is a top view of the ensemble shown in FIG. 1; FIG. 4 shows a mechanical structure of the torsion testing apparatus; FIG. 5 shows a mechanical structure of the device for testing the strength of the foot-operated crosspiece; FIG. 6 is a mechanical structure of the strength testing device for multi-section combination joints; FIG. 7 is a system block diagram of a servo system portion. The utility model provides an insulating armful of pole loading, torsion test device of transmission line live working includes: a main body 1; the bottoms of the two upright columns 2 are fixed on two sides of the top of the main machine body 1, and displacement sensors are arranged on the inner sides of the two upright columns 2; the adjusting assembly 3 is arranged between the two upright posts 2; the adjusting assembly 3 comprises a top beam 31 and a cross beam 32, wherein a rotating mechanism 33 is arranged on the top beam 31, and a connecting mechanism 34 is arranged on the cross beam 32; the tension sensor 4 is arranged on the adjusting component 3; the displacement sensors 5 are arranged at the tops of the two upright columns 2; the limiting clamping ring 6 is fixed on the front surface of the top beam 31; and an auxiliary supporting plate 9, wherein the bottom of the auxiliary supporting plate 9 is fixed at the top of the main machine body 1 and is positioned between the two upright posts 2.
The inside of stand 2 is provided with servo motor, and servo motor is provided with two altogether, two servo motor respectively with the back timber 31 with looks adaptation between the crossbeam 32.
The pole holding device has the advantages that the torque bearing capacity of the connecting part between the pole holding device and the pole holding device can be tested, the compression resistance value of each force application point in the use process of the pole holding device can be mastered, whether the pole holding device can be normally used on site or not can be verified through experiments according to the requirements of site work, and therefore unsafe accidents caused by pole holding faults of workers working at high altitude can be avoided, the personal safety of constructors can be further guaranteed, and meanwhile the smooth construction can be guaranteed and the construction can be completed within a preset construction period.
And (3) torsion strength test:
a, mounting one end of a holding pole on a horizontal auxiliary tool matched with the holding pole, and mounting a fastening screw to prevent the holding pole from moving;
b, adjusting the clamp of the device to a position 10-15 cm above the horizontal crosspiece, and regulating and controlling the position through software;
c, performing tests according to the software operation rules and the force values needing to be verified.
And (3) testing the strength of the foot-treaded crosspiece:
a, vertically placing a holding pole on a base of the device, and installing a fastening screw to prevent the holding pole from moving;
b, adjusting the clamp of the device to a position 10-15 cm above the horizontal crosspiece, and regulating and controlling the position through software;
c, performing tests according to the software operation rules and the force values needing to be verified.
And (3) testing the strength of the multi-section combined joint:
a, combining at least two holding poles, wherein one end of the combined holding pole is arranged on an auxiliary tool mounting seat matched with the holding pole, the other end of the combined holding pole penetrates through a testing machine, the other end of the combined holding pole is arranged on the auxiliary tool mounting seat matched with the holding pole, and the position is adjusted to ensure that a lifting pressure plate or a cross beam vertically corresponds to the joint of the holding pole;
b, adjusting the clamp of the device to a position 10-15 cm above the horizontal crosspiece, and regulating and controlling the position through software;
c, performing tests according to the software operation rules and the force values needing to be verified.
The servo system is mainly characterized in that:
a precise detection device: the displacement change can be accurately detected by forming speed and position closed-loop control;
b high-performance servo motors (servo motors for short): the servo system will often be in the process of frequent starting and braking. The ratio of the output torque of the motor to the moment of inertia is required to be large in order to generate a sufficiently large acceleration or braking torque. The servo motor is required to have enough output torque and operate stably at low speed so as to increase the power by the stable displacement change in the test process;
c, a speed regulating system with a wide speed regulating range, namely a speed servo system: from the control structure of the system, the position closed-loop system of the numerical control machine can be regarded as a double closed-loop automatic control system with the position adjusted to be an outer loop and the speed adjusted to be an inner loop, and the actual working process in the system is that after the position control input is converted into a corresponding speed given signal, the servo motor is driven through the speed adjusting system, so that the actual displacement is realized.
Software programming and structure of the upper computer:
a, opening a computer, double-clicking software on a desktop, finding a zero clearing button in an experimental force and deformation display panel window, and setting the force of a sensor to zero;
note that the force zero clearing of the sensor needs to be performed under the condition that the sensor is not stressed.
b, gear range selection: changing the measuring range of the current sensor;
c, finding the control panel in the software to find the up-down button and adjusting the position of the clamp of the device.
Note that the test is only used for testing the position of the front and back moving pressure plate or cross beam, and is irrelevant to the test process.
d finding a curve plate in the software, and selecting a force-displacement option.
e, finding out a control plate in the software to select a displacement button, and setting the running speed and the pre-tightening speed.
f, finding the force button selected by the control panel in the software, and setting the required test force, deformation and time for maintaining the displacement
Note that the range of the sensor must not be exceeded to avoid damaging the sensor.
g finding the control panel in the software, clicking the test to start, and carrying out the test
The utility model provides an insulating pole loading, torsion test device of embracing of transmission line live working's theory of operation as follows:
and (3) torsion strength test:
a, mounting one end of a holding pole on a horizontal auxiliary tool matched with the holding pole, and mounting a fastening screw to prevent the holding pole from moving;
b, adjusting the clamp of the device to a position 10-15 cm above the horizontal crosspiece, and regulating and controlling the position through software;
c, performing tests according to the software operation rules and the force values needing to be verified.
And (3) testing the strength of the foot-treaded crosspiece:
a, vertically placing a holding pole on a base of the device, and installing a fastening screw to prevent the holding pole from moving;
b, adjusting the clamp of the device to a position 10-15 cm above the horizontal crosspiece, and regulating and controlling the position through software;
c, performing tests according to the software operation rules and the force values needing to be verified.
And (3) testing the strength of the multi-section combined joint:
a, combining at least two holding poles, wherein one end of the combined holding pole is arranged on an auxiliary tool mounting seat matched with the holding pole, the other end of the combined holding pole penetrates through a testing machine, the other end of the combined holding pole is arranged on the auxiliary tool mounting seat matched with the holding pole, and the position is adjusted to ensure that a lifting pressure plate or a cross beam vertically corresponds to the joint of the holding pole;
b, adjusting the clamp of the device to a position 10-15 cm above the horizontal crosspiece, and regulating and controlling the position through software;
c, performing tests according to the software operation rules and the force values needing to be verified.
A servo system is provided inside the main body 1.
The servo system mainly comprises three parts: the device comprises a controller, a power driving device, a feedback device and a motor.
The controller adjusts the control quantity according to the difference between the set value of the numerical control system and the actual operation value detected by the feedback device;
the power driving device is used as a main loop of the system, on one hand, electric energy in a power grid is acted on the motor according to the control quantity to adjust the torque of the motor, and on the other hand, the power supply of the power grid with constant voltage and constant frequency is converted into alternating current or direct current required by the motor according to the requirement of the motor;
the motor drives the machine to operate according to the power supply.
Testing and result analysis:
the hydraulic force applying device is a core part of the test system, and the test device can ensure that the experiment stably and powerfully simulates the actual field force value. The accuracy of the test result is ensured.
And b, the servo knob device is applied to the bending test of the joint, and stably applies pressure through click control according to requirements, so that the bending resistance of the joint is ensured. Through experiments, the operation method of the safety performance in field use is ensured.
c test moulds at different positions ensure that the test of each point to be tested is effectively finished
Compared with the prior art, the utility model provides an insulating armful of pole loading, torsion test device of transmission line live working has following beneficial effect:
the device is a main guarantee for ensuring the safe operation of a power line tool, is a reliable measure for ensuring the operation and the use of a person and the safe operation of equipment, can ensure the reliable safety factor of an operator in the line emergency repair work in actual implementation, and is a new method for improving the service limit and the service life of a safety tool in the research and application of a test device for the load and the torsion of an insulating holding rod in live working of a power transmission line, so that the safety quality of the safety tool is improved, and the safety and the reliability of a use facility of the safety tool are ensured.
In addition, the device can be used for checking whether all internal parts are completely and in place before the live-line work insulating holding pole load and torque test equipment of a newly-installed power transmission line is put into operation.
The insulating holding pole can provide good guarantee of safe operation, safety and concentration in rush repair for the use and maintenance personnel of the insulating holding pole, and the effects of personal operation safety, equipment use safety and overhaul and maintenance operation safety are realized. The research and development and the application of the safety device provide a set of advanced, standard and safe personnel safety protection means for the field operation of repairing the domestic power transmission line and the like, and the regular monitoring, maintenance, inspection, fault treatment and other work on the power transmission line can be realized in a standard and safe manner, so that the line emergency repair field operation can be carried out safely and quickly, and the field operation management is safer, standard, efficient and scientific. The application of the device standardizes on-site safety test appliances and an innovative operation method for safely and quickly eliminating defects, ensures the reliable operation of a power grid and equipment and the safe uninterrupted power supply of vast power customers, lays a solid foundation for the economy and long-period safe operation of the power grid, and has very large safety benefit and indirectly generated social benefit.
In addition, the whole equipment of main unit body of insulating armful pole loading of transmission line live working, torsion test device need use the conveyer at the in-process of transportation, including transport case 10, buffer slot 101 has been seted up to the bottom of transport case 10 inner wall, fixedly connected with bracing piece 102 between the both sides of buffer slot 101 inner wall, buffer spring 103 has all been cup jointed to the both sides of bracing piece 102, two the equal fixedly connected with horizontal slider 104 in the relative one side of buffer spring 103, two the top of horizontal slider 104 all rotates and is connected with first gangbar 105.
Two the top of first gangbar 105 rotates and is connected with lifter plate 106, the top fixedly connected with back shaft 107 at bracing piece 102 center, the surface of back shaft 107 with lifter plate 106 sliding connection, the both sides at lifter plate 106 top all rotate and are connected with second gangbar 108, spacing spout 109 has been seted up in the left side of transport case 10 inner wall to lift hole 1010 has been seted up on the right side of transport case 10.
The bottom of transport case 10 inner wall is provided with the structure of buffering and provides the effect of buffering from top to bottom for installing the main engine body equipment at buffering mounting panel 11 top, and when buffering mounting panel 11 moves down, buffering mounting panel 11 promotes the lifter plate 106 downstream of bottom through two second ganged bars 108 of bottom, and lifter plate 106 promotes two first ganged bars 105 of bottom to rotate downwards in step, and two horizontal slider 104 that first ganged bars 105 promoted both sides in step keep away from each other to the buffer spring 103 of compression both sides.
The top of the two second linkage rods 108 is rotatably connected with a buffer mounting plate 11, the top of the buffer mounting plate 11 is provided with a limit moving groove 111, the left side of the buffer mounting plate 11 is fixedly connected with a limit sliding block 112, the surface of the limit sliding block 112 is slidably connected with the inner surface of the limit sliding groove 109, the limit moving groove 111 is a T-shaped groove, and the inner surface of the limit moving groove 111 is slidably connected with two moving blocks 12.
The left side of the buffering mounting plate 11 is in sliding connection with the inner surface of the limiting sliding groove 109 through the limiting sliding block 112, and the stability and the safety of up-and-down movement adjustment of the buffering mounting plate 11 are guaranteed.
The two moving blocks 12 are both of a T-shaped structure, the tops of the two moving blocks 12 are fixedly connected with clamping plates 13, one sides of the two clamping plates 13 opposite to each other are fixedly connected with buffer plates 14, and the two sides of the tops of the buffer mounting plates 11 are fixedly connected with fixing plates 15.
Two be provided with on the fixed plate 15 and adjust pole 151, the right-hand member fixedly connected with adjusting plate 152 of adjusting pole 151, a plurality of locating hole 1521 have been seted up on the adjusting plate 152, locating hole 1521 with be provided with locating pin 153 between the fixed plate 15, the structure of the reverse double thread in surface of adjusting pole 151 to the surface of adjusting pole 151 with two the surperficial threaded connection of grip block 13.
The locating hole 1521 is provided with twenty altogether, and twenty locating holes 1521 make things convenient for adjusting disk 152 to rotate the regulation back, fix and spacing through locating pin 153 to set up the draw-in groove with locating pin axle looks adaptation on the fixed plate 15, make things convenient for the installation and spacing of locating pin axle 153, thereby make things convenient for adjusting disk 152 after the regulation to carry on spacingly and fixed.
Rotate when the adjustment disk 152 and adjust adjustment disk 152 and drive in step and adjust pole 151 and rotate, adjust pole 151 and drive the grip block 13 of both sides through the structure of two-way screw thread and be close to each other or keep away from each other, when the grip block 13 of both sides is close to each other, the grip block 14 of both sides is driven in step to the grip block 13 of two and is whole to carry out the centre gripping and fix to the host computer body, the grip block 14 adopts the cystosepiment, horizontal protection and cushioning effect in the guarantee equipment transportation, thereby wholly improve security and stability that the host computer body 1 used.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (7)

1. The utility model provides an insulating armful of pole loading, torsion test device of transmission line live working which characterized in that includes:
a main body;
the bottoms of the two upright columns are fixed on two sides of the top of the main machine body, and displacement sensors are arranged on the inner sides of the two upright columns;
the adjusting assembly is arranged between the two upright posts; the adjusting assembly comprises a top beam and a cross beam, wherein the top beam is provided with a rotating mechanism, and the cross beam is provided with a connecting mechanism;
the tension sensor is arranged on the adjusting assembly;
the displacement sensors are arranged at the tops of the two upright columns;
the limiting clamping ring is fixed on the front surface of the top beam;
and the bottom of the auxiliary supporting plate is fixed at the top of the main machine body and is positioned between the two stand columns.
2. The testing device for the load and the torque of the insulating holding rod for the live working of the power transmission line according to claim 1, wherein two servo motors are arranged inside the upright column, and the two servo motors are respectively matched with the top beam and the cross beam.
3. The insulating pole loading of transmission line live working, torsion test device of claim 1, characterized in that, the insulating pole loading of transmission line live working, the whole equipment of main unit body of torsion test device need use the conveyer in the in-process of transportation, including the transport case, the dashpot has been seted up to the bottom of transport case inner wall, fixedly connected with bracing piece between the both sides of dashpot inner wall, buffer spring has all been cup jointed to the both sides of bracing piece, two the equal fixedly connected with horizontal slider of the relative one side of buffer spring, two the top of horizontal slider all is rotated and is connected with first gangbar.
4. The testing device for the load and the torque of the insulating holding rod of the transmission line hot-line work according to claim 3, wherein the top parts of the two first linkage rods are rotatably connected with a lifting plate, the top part of the center of the supporting rod is fixedly connected with a supporting shaft, the surface of the supporting shaft is slidably connected with the lifting plate, the two sides of the top part of the lifting plate are rotatably connected with second linkage rods, a limiting sliding groove is formed in the left side of the inner wall of the transport case, and a lifting hole is formed in the right side of the transport case.
5. The testing device for the load and the torque of the insulating holding rod for the live working of the transmission line according to claim 4, wherein the top parts of the two second linkage rods are rotatably connected with a buffering mounting plate, a limiting moving groove is formed in the top part of the buffering mounting plate, a limiting sliding block is fixedly connected to the left side of the buffering mounting plate, the surface of the limiting sliding block is slidably connected with the inner surface of the limiting sliding groove, the limiting moving groove is a T-shaped groove, and two moving blocks are slidably connected to the inner surface of the limiting moving groove.
6. The testing device for the load and the torque of the live working insulated holding rod of the power transmission line according to claim 5, wherein the two moving blocks are both of a T-shaped structure, clamping plates are fixedly connected to the tops of the two moving blocks, buffer plates are fixedly connected to the opposite sides of the two clamping plates, and fixing plates are fixedly connected to the two sides of the top of the buffer mounting plate.
7. The testing device for the load and the torque of the insulating holding rod for the live working of the power transmission line according to claim 6, wherein adjusting rods are arranged on the two fixing plates, an adjusting disc is fixedly connected to the right end of each adjusting rod, a plurality of positioning holes are formed in the adjusting disc, a positioning pin shaft is arranged between each positioning hole and the corresponding fixing plate, the surface of each adjusting rod is of a reverse double-thread structure, and the surface of each adjusting rod is in threaded connection with the surfaces of the two clamping plates.
CN202020027820.0U 2020-01-07 2020-01-07 Load and torque force test device for live working insulating holding rod of power transmission line Active CN211668751U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020027820.0U CN211668751U (en) 2020-01-07 2020-01-07 Load and torque force test device for live working insulating holding rod of power transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020027820.0U CN211668751U (en) 2020-01-07 2020-01-07 Load and torque force test device for live working insulating holding rod of power transmission line

Publications (1)

Publication Number Publication Date
CN211668751U true CN211668751U (en) 2020-10-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020027820.0U Active CN211668751U (en) 2020-01-07 2020-01-07 Load and torque force test device for live working insulating holding rod of power transmission line

Country Status (1)

Country Link
CN (1) CN211668751U (en)

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