A Portable Measuring Assembly for High-Altitude Equipment and Its Usage Method

Abstract

A portable combined device for measuring high-altitude equipment and its usage method, comprising a wire clamp head, an upper clamping rod, a lower clamping rod, a pull wire, a lower clamping rod connecting rod, a telescopic insulating rod, a steering device, and a pull wire limiting device. The upper clamping rod and the lower clamping rod are used to drive the opening and closing of the wire clamp head. One end of the pull wire is connected to the upper clamping rod. The lower clamping rod connecting rod is fixedly connected to the lower clamping rod. The two ends of the steering device are respectively connected to the lower clamping rod connecting rod and the telescopic insulating rod. The pull wire limiting device is installed on the telescopic insulating rod. The present invention can ensure that the test wire clamp is in close contact with the metal end of the device under test without the test personnel climbing the pole tower, effectively avoiding the danger of personnel working at heights. It also solves the problems that in the daily use of conventional high-altitude test connection pliers, the high-altitude connection rod is not convenient to carry, the length adjustment is inconvenient, the overall weight is heavy, and it cannot be applied to the contact problem of multi-angle connection boards.

Description

Technical Field

[0001] The present invention relates to the field of power detection, and in particular to a portable high-altitude equipment measurement combination device and a usage method thereof. Background Art

[0002] High-altitude wiring test equipment is a necessary piece of equipment used by the power department for preventive tests and condition-based maintenance tests. It is mainly used for high-altitude wiring detection of electrical equipment such as measuring the DC resistance of transformers, the loop resistance of switches, the dielectric loss of instrument transformers, and the capacitance. The working environment of high-altitude wiring test equipment is complex. The test location is usually the switch yard of an outdoor substation. The external lead positions of the electrical equipment in the substation are relatively high, generally between 6m and 10m. When conducting electrical tests on the equipment, technicians need to climb for wiring operations, and safety accidents such as personnel falling from high altitudes often occur. In addition, although personnel can be lifted to high altitudes for wiring by a boom truck, due to the presence of live operating high-voltage busbars nearby, there is a risk of electric shock to personnel. Moreover, for some newly built substations, the road surface at the test site has not been repaired, and vehicles cannot enter the substation test site. Existing high-altitude wiring pliers are not only inconvenient to adjust the length, but also relatively heavy as a whole and need to be held with both hands. It is extremely troublesome to perform other operations at this time. Moreover, most of them are of the F-type structure, and it is usually difficult for wiring pliers with such a structure to adapt to the problem of multi-angle contact with the wiring board. Summary of the Invention

[0003] The present invention provides a portable high-altitude equipment measurement combination device and a usage method thereof, which can ensure that the test wire clamp is in close contact with the metal end of the device to be measured without the test personnel climbing the pole tower, effectively avoiding the danger of personnel working at heights, and also solving the problems that the high-altitude test wiring pliers are not convenient to carry, not convenient to adjust the length, relatively heavy as a whole, and unable to adapt to the multi-angle contact problem of the wiring board in daily use.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0005] A portable high-altitude equipment measurement combination device includes a wire clamp head, an upper clamping rod, a lower clamping rod, a pulling wire, a lower clamping rod connecting rod, a telescopic insulating rod, a steering device, and a pulling wire limiting device. The upper clamping rod and the lower clamping rod are used to drive the wire clamp head to open and close. One end of the pulling wire is connected to the upper clamping rod. The lower clamping rod connecting rod is fixedly connected to the lower clamping rod. Both ends of the steering device are respectively connected to the lower clamping rod connecting rod and the telescopic insulating rod. The pulling wire limiting device is installed on the telescopic insulating rod.

[0006] The wire clamp head includes an upper jaw, a lower jaw, a current connection point, and a voltage connection point. The upper jaw is hinged to the lower jaw, and a torsion spring is provided at the hinge axis to clamp the upper jaw and the lower jaw. The upper jaw is connected to an upper clamping rod, and the lower jaw is connected to a lower clamping rod. The current connection point and the voltage connection point are respectively installed on the upper jaw and the lower jaw.

[0007] Anti-slip clamping plates are provided on the lower jaw and the lower jaw.

[0008] The steering device is a universal connector.

[0009] The wire pulling limit device includes a wire pulling limit piece and a limit pulley. The wire pulling limit piece covers the outside of the limit pulley to limit the wire passing in and out of the groove of the limit pulley within the groove.

[0010] The lower clamping rod is hollow.

[0011] A method for using a portable high-altitude equipment measurement combination device includes the following steps:

[0012] 1) When measuring the horizontal angle wiring board, stand the telescopic insulating rod upright on the ground, use the wire to pull the upper clamping rod, open the upper jaw and the lower jaw, clamp the wiring board, and complete the wiring operation;

[0013] 2) When measuring an irregular angle wiring board, first judge the angle of the wiring board, rotate the steering device to the corresponding angle on the ground, pass the wire through the wire pulling limit device, stand the telescopic insulating rod upright on the ground, and pull the wire downward tightly. The wire changes the force application angle through the limit pulley of the wire pulling limit device, pulls the upper clamping rod, opens the upper jaw and the lower jaw, and clamps the wiring board.

[0014] Compared with the existing technology, the beneficial effects of the present invention are:

[0015] 1) Easy to carry: The insulating rod can be arbitrarily determined in length according to needs, is light in weight, simple to install and disassemble, and the combined wire clamp device is small and convenient to carry.

[0016] 2) Simple operation: During operation, only the staff on the ground need to support the telescopic insulating rod on the ground with the high-altitude combined measurement wire clamp, and at the same time pull the wire downward to adjust the opening and closing state of the combined wire clamp. After the test, cooperate the telescopic insulating rod with the wire again to open the wiring pliers to the maximum size, which is extremely convenient for hanging and clamping. The principle of the lever is utilized between the upper and lower jaws of the wiring pliers, so that a small pulling force can obtain a large clamping force.

[0017] 3) Avoiding working at heights: When testing or repairing electrical equipment that is relatively high and cannot be directly accessed, operators usually climb up directly to connect the wires. This method is extremely physically exhausting and not very safe. The multifunctional high-altitude wire connecting pliers can solve this problem by transferring the high-altitude operation to the ground, greatly improving the working conditions of the operators.

[0018] 4) Reducing the frequency of wire replacement: This multifunctional integrated test wire can meet the requirements of four instruments, namely direct current resistance, transformation ratio and polarity test, insulation resistance, and dielectric loss, for current-carrying capacity and insulation level. Only the wiring on the instrument side needs to be reconnected, and there is no need to replace the wiring on the equipment side multiple times, improving the on-site work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a portable high-altitude equipment measurement combination device;

[0020] Figure 2 is a front view schematic structural diagram of the steering device of the present invention ( Figure 1 in B);

[0021] Figure 3 is a left side view schematic structural diagram of the steering device of the present invention;

[0022] Figure 4 is a right side view schematic structural diagram of the steering device of the present invention;

[0023] Figure 5 is a schematic structural diagram of the wire-pulling limit device of the present invention ( Figure 1 in A);

[0024] Figure 6 is a schematic structural diagram of the portable high-altitude equipment measurement combination device after turning.

[0025] In the figure, 1 - anti-slip splint, 2 - upper jaw, 3 - upper clamping rod, 4 - connection point of the upper clamping rod, 5 - lower jaw, 6 - mechanical rotating shaft, 7 - lower clamping rod, 8 - connecting rod of the lower clamping rod, 9 - telescopic insulating rod, 10 - voltage wiring point, 11 - current wiring point, 12 - insertion hole for the instrument end of the test wire, 13 - insertion hole for the clamp end of the test wire, 21 - wire-pulling loop, 22 - wire-pulling wire, 31 - fixing bolt, 32 - insulating rod fixing clamp, 33 - fixing clamp for the connecting rod of the lower clamping rod, 34 - steering fixing bolt, 41 - pulley positioning bolt, 42 - wire-pulling limit piece, 43 - limit pulley, 44 - insulating rod fixing bolt. DETAILED DESCRIPTION OF THE INVENTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings, but the scope of implementation of the present invention is not limited to the following embodiments.

[0027] As Figures 1 - 6As shown in the figure, a portable high-altitude equipment measurement combination device includes a wire clamp head, an upper clamping rod 3, a lower clamping rod 7, a stay wire 22, a lower clamping rod connecting rod 8, a telescopic insulating rod 9, a steering device, and a stay wire limiting device. The upper clamping rod 3 and the lower clamping rod 7 are used to drive the wire clamp head to open and close. One end of the stay wire 22 is connected to the upper clamping rod 3. The lower clamping rod connecting rod 8 is fixedly connected to the lower clamping rod 7. The two ends of the steering device are respectively connected to the lower clamping rod connecting rod 8 and the telescopic insulating rod 9. The stay wire limiting device is installed on the telescopic insulating rod 9.

[0028] The wire clamp head includes an upper jaw 2, a lower jaw 5, a current connection point 11, and a voltage connection point 10. The upper jaw 2 and the lower jaw 5 are hinged, and a torsion spring is provided at the hinge axis to clamp the upper jaw 2 and the lower jaw 5. The upper jaw 2 is connected to the upper clamping rod 3, and the lower jaw 5 is connected to the lower clamping rod 7. The current connection point 11 and the voltage connection point 10 are respectively installed on the upper jaw 2 and the lower jaw 5.

[0029] Anti-slip clamping plates 1 are provided on the lower jaw 5 and the lower jaw 2.

[0030] The steering device is a universal connector.

[0031] The stay wire limiting device includes a stay wire limiting piece 42 and a limiting pulley 43. The stay wire limiting piece 42 covers the outside of the limiting pulley 43 to limit the stay wire 22 entering and leaving the groove of the limiting pulley 43 in the groove. The stay wire limiting device is installed at the end of the telescopic insulating rod 9 through an insulating rod fixing bolt 44.

[0032] The lower clamping rod 7 is hollow and is used to thread through the wires connecting the current connection point 11 and the voltage connection point 10, facilitating the straightening of the wires, preventing entanglement, and avoiding damage to the test wires.

[0033] The telescopic insulating rod 9 is made of insulating material and can be clamped at multiple points. The insulating rod fixing clamp 32 at one end of the steering device is clamped and connected to the telescopic insulating rod 9 through a fixing bolt 31. The lower clamping rod connecting rod fixing clamp 33 at the other end of the steering device is clamped and fixed to the lower clamping rod connecting rod 8 through a fixing bolt 31, thus completing the connection between the telescopic insulating rod 9 and the lower clamping rod 7.

[0034] One end of the stay wire 22 can extend to the ground, and the other end is connected to the upper clamping rod connection point 4 by a stay wire loop 21, thus completing the connection between the stay wire 22 and the upper clamping rod 3.

[0035] The upper jaw 2, the lower jaw 5, and the mechanical rotating shaft 6 (hinge axis) form the clamping head part of the wire clamp. Anti-slip clamping plates 1 are fixedly installed on the end faces of the upper jaw 2 and the lower jaw 5, and multiple anti-slip grooves are spaced on the end faces of the anti-slip clamping plates 1. A torsion spring is sleeved on the mechanical rotating shaft 6, so that the upper jaw 2 and the lower jaw 5 are in a closed state without external force.

[0036] When it comes to a 45-degree or 90-degree wiring board, one end of the pull wire 22 can be inserted into the pull wire limit piece 42, and the pull wire 22 is placed in the groove of the limit pulley 43 to prevent the pull wire from slipping. The pull wire limiting device is connected to the telescopic insulating rod 9 through the insulating rod fixing bolt 44. After adjusting the steering fixing bolt 34 to an appropriate angle and fixing it, pull down the pull wire 22, and the upper clamping rod 3 can be actuated and the upper jaw 2 can be opened, enabling multi-angle clamping. The overall effect is as Figure 6 shown.

[0037] Before the test starts, insert the test wire into the hole 12 from the instrument end of the test wire, extend it out from the hole 13 at the clip end of the test wire, and connect it to the current connection point 11 and the voltage connection point 10 to complete the wiring of the test wire.

[0038] At the same time, due to the effect of gravity, the hole 12 at the instrument end of the test wire is designed to be arc-shaped, enabling the test wire to smoothly lead downward from the clip and avoiding damage to the test wire.

[0039] A method for using a portable high-altitude equipment measurement combination device includes the following steps:

[0040] First, pull the telescopic insulating rod 9 to the required height, connect the universal connector to the telescopic insulating rod 9 and the lower clamping rod connecting rod 8 respectively, and fix the combined wire clip on the telescopic insulating rod 9. Connect the pull wire 22 to the upper clamping rod connection point 4 through the pull wire loop 21, then stand the telescopic insulating rod 9 on the ground, and at the same time lead the wire at the clip end to the ground to start the wiring operation.

[0041] 1) When measuring the horizontal angle wiring board, while adjusting the height of the telescopic insulating rod 9, bring the clip head of the wire clip close to the device to be measured, then pull down the pull wire 22 tightly, and stand the telescopic insulating rod 9 upright on the ground. Use the pull wire 22 to pull the upper clamping rod 3 to open the upper jaw 2 and the lower jaw 5. Cooperate with the movement of the clip head of the wire clip to clamp the wiring board, and under the action of the anti-slip clamping plate 1, it will not easily slip, completing the wiring operation; after the measurement is completed, stand the telescopic insulating rod 9 upright on the ground, pull down the pull wire 22 tightly again to release the upper and lower jaws, and then remove the combined wire clip; as Figure 1 shown.

[0042] 2) When measuring an irregular angle wiring board, first determine the angle of the wiring board, rotate the steering device to the corresponding angle on the ground, and pass the pull wire 22 through the pull wire limiting device. The pull wire 22 is inside the pull wire limiting piece 42 and placed in the groove of the limiting pulley 43 to prevent the pull wire 22 from falling off. Adjust the height of the telescopic insulating rod 9, move the combined wire clamp close to the device under test, stand the telescopic insulating rod 9 upright on the ground, and tighten the pull wire 22 downward. The pull wire 22 changes the force application angle through the limiting pulley 43 of the pull wire limiting device, pulls the upper clamping rod 3, opens the upper jaw 2 and the lower jaw 5, and cooperates with the movement of the wire clamp to clamp the wiring board. Under the action of the anti-slip clamping plate 1, it will not easily slip off, and the wiring operation is completed. After the measurement is completed, stand the telescopic insulating rod 9 upright on the ground, tighten the pull wire 22 downward again, loosen the upper and lower jaws, and then remove the combined wire clamp.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable combined device for measuring high-altitude equipment, characterized in that, It includes a wire clamp head, an upper clamping rod, a lower clamping rod, a stay wire, a lower clamping rod connecting rod, a telescopic insulating rod, a steering device, and a stay wire limiting device. The upper clamping rod and the lower clamping rod are used to drive the opening and closing of the wire clamp head. One end of the stay wire is connected to the upper clamping rod. The lower clamping rod connecting rod is fixedly connected to the lower clamping rod. Both ends of the steering device are respectively connected to the lower clamping rod connecting rod and the telescopic insulating rod. The stay wire limiting device is installed on the telescopic insulating rod; The wire clamp head includes an upper jaw, a lower jaw, a current connection point, and a voltage connection point. The upper jaw is hinged to the lower jaw, and a torsion spring is arranged at the hinge shaft to clamp the upper jaw and the lower jaw. The upper jaw is connected to the upper clamping rod, and the lower jaw is connected to the lower clamping rod. The current connection point and the voltage connection point are respectively installed on the upper jaw and the lower jaw; The steering device is a universal connector; The stay wire limiting device includes a stay wire limiting piece and a limiting pulley. The stay wire limiting piece covers the outside of the limiting pulley to limit the stay wire entering and leaving the groove of the limiting pulley in the groove; The usage method of the measurement combination device includes the following methods: 1) When measuring the horizontal angle wiring board, stand the telescopic insulating rod upright on the ground, use the stay wire to pull the upper clamping rod, open the upper jaw and the lower jaw, clamp the wiring board, and complete the wiring operation; 2) When measuring an irregular angle wiring board, first judge the angle of the wiring board, rotate the steering device to the corresponding angle on the ground, pass the stay wire through the stay wire limiting device, stand the telescopic insulating rod upright on the ground, and tighten the stay wire downward. The stay wire changes the force angle through the limiting pulley of the stay wire limiting device, pulls the upper clamping rod, opens the upper jaw and the lower jaw, and clamps the wiring board; Anti-slip clamping plates are provided on the upper jaw and the lower jaw; The lower clamping rod is hollow.

Images