CN115166307A - Semi-automatic universal low-resistance test high-altitude wiring clamp - Google Patents

Abstract

The utility model provides a semi-automatic universal low experimental high altitude jointing clamp of resistance, is including two pincers bodies of articulated connection, and the one end of each pincers body is all articulated to be installed the line clamp splice, and the other end of pincers body is equipped with the handle that opens and shuts, installs the torsional spring in the pivot of two pincers body articulated positions. The invention has the positive effects that: according to the invention, the two wire clamping blocks always have a contact trend under the action of the torsion spring, the insulating rod is arranged between the two clamp bodies, the two wire clamping blocks can be supported and separated, the touch self-locking function is realized, the clamp bodies are connected with the telescopic rods through the universal joints, the universal joints are adjusted to adapt to circuits at different positions, and a single worker can complete test wiring operation by holding the telescopic rods on the ground, so that various dangerous factors of high-altitude operation are avoided, the wiring operation time is effectively shortened, the overall wiring detection efficiency is improved, the labor intensity of the operator is reduced, the labor input is reduced, and the required cost of the whole operation is reduced.

Description

Semi-automatic universal low-resistance test high-altitude wiring clamp

Technical Field

The invention relates to the technical field of electric power overhaul equipment, in particular to semi-automatic universal low-resistance test high-altitude wiring clamp.

Background

When carrying out power line and overhauing, according to current experimental wiring mode, parallelly connected low-voltage reactor need artifical manual double-layered line when testing, because low anti body framework is higher apart from ground, and the on-the-spot high-altitude car that needs to adopt tests the wiring, and operating time is longer, and test efficiency is extremely low, receives multiple factor restriction such as on-the-spot safe distance and car hopper arm effective extension scope, can't connect the line to arbitrary position fastener fast. In addition, the equipment space arrangement of the 35kV equipment area is compact, the space and the safety distance are limited, most of 35kV equipment areas cannot normally use high-altitude vehicles, only insulating long ladders larger than 5 meters can be erected, testing personnel climb to the upper part of the equipment through the long ladders to test wiring, effective safety protection is lacked in the process of the upper insulating ladder and the lower insulating ladder, personal safety is threatened, according to primary determination on site, 5 meters of long ladders are erected by at least 4 adults, and therefore the wiring method is poor in safety, extremely low in working efficiency and high in labor cost. How to carry out quick wiring detection on corresponding lines in complex power equipment is a problem which is urgently needed to be solved at present.

Disclosure of Invention

The invention aims to provide semi-automatic universal low-resistance test high-altitude wiring clamp, which can be used for completing test wiring operation by holding a telescopic rod on the ground by a single worker, avoids various dangerous factors of high-altitude operation, realizes quick and effective wiring operation and solves the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to semi-automatic universal low-resistance test high-altitude jointing clamp which comprises two clamp bodies in hinged connection, wherein one end of each clamp body is hinged with a wire clamping block, the other end of each clamp body is provided with an opening and closing handle, a rotating shaft at the hinged position of the two clamp bodies is provided with a torsional spring, the torsional spring always tends to enable the two wire clamping blocks to be in contact, two sides of one clamp body are hinged with insulating rods, the end part of each insulating rod is provided with a limiting groove, two sides of the other clamp body are provided with limiting columns matched with the limiting grooves, when the limiting columns are positioned in the limiting grooves, the two wire clamping blocks can be separated by the insulating rods, a universal joint is further arranged on each clamp body, and a seat body of the universal joint is provided with a detachable telescopic rod. The top of the telescopic link is provided with an insertion groove, a first electromagnet is installed at the bottom of the insertion groove, a vertical groove is formed in a base body of the universal joint, a connecting iron block is installed in the vertical groove, the upper end of the connecting iron block is provided with a first limiting convex edge, the bottom of the vertical groove is provided with a circular ring plate matched with the first limiting convex edge, the first electromagnet is powered on, the connecting iron block enters the insertion groove, a sliding groove horizontally arranged is formed in the telescopic link and communicated with the insertion groove, a positioning iron column is installed in the sliding groove in a matched mode, a second limiting convex edge is arranged on the positioning iron column, a spring is sleeved on the periphery of the positioning iron column on one side of the second limiting convex edge, an inclined plane is arranged at one end, close to the insertion groove, of the positioning iron column, the spring always has the trend of pushing the inclined plane to enter the insertion groove, a positioning hole matched with the positioning iron column is formed in the connecting iron block, when the first electromagnet is powered on and the connecting iron block, one end of the inclined plane of the positioning iron column is located in the positioning hole, a second electromagnet is installed at one end, the sliding groove far away from the insertion groove, the second electromagnet is powered on the elastic force of the positioning iron column, and the second electromagnet is completely located in the sliding groove, and a second electromagnet switch is installed on the telescopic link, and the sliding switch, and the second electromagnet can control knob. The rotary switch comprises a circular plate, a rotary spanner is installed on the circular plate, one end of the rotary spanner is connected with a power supply through a wire, a movable contact piece is installed at the other end of the rotary spanner, a first contact piece, a second contact piece and a third contact piece are installed on the circular plate, the movable contact piece can rotate to be connected with the first contact piece, the second contact piece or the third contact piece respectively, the first contact piece is connected with the first electromagnet through the wire, and the third contact piece is connected with the second electromagnet through the wire. The wire clamp block is connected with a detection wire, the clamp body is sleeved with a binding belt, and the detection wire is located in the binding belt. And raised sharp points arranged in a matrix manner are arranged on the inner side surface of the wire clamping block.

The invention has the positive effects that: the invention relates to semi-automatic universal low-resistance test high-altitude wiring clamp which comprises two clamp bodies hinged with each other, wherein wire clamping blocks for wiring are arranged at the end parts of the clamp bodies, the two wire clamping blocks always tend to be in contact under the action of a torsion spring, an insulating rod is arranged between the two clamp bodies, the two wire clamping blocks can be supported and separated, the touch self-locking function is realized, the clamp bodies are connected with telescopic rods through universal joints, circuits at different positions can be adapted through adjusting the universal joints, and a single worker can complete test wiring operation on the ground by holding the telescopic rods by hand, so that various dangerous factors of high-altitude operation are avoided, the wiring operation time is effectively shortened, the integral wiring detection efficiency is improved, the labor intensity of the operator is reduced, the labor input is reduced, and the required cost of the whole operation is reduced.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged view of a portion of I of FIG. 2;

FIG. 4 is a schematic view showing a state where the coupling iron blocks are separated from the insertion grooves;

FIG. 5 is an enlarged partial view of II of FIG. 2;

FIG. 6 is an enlarged view of view A of FIG. 2;

FIG. 7 is a schematic view of the position of the gimbal when the present invention is applied to a vertical wire clamp;

FIG. 8 is a schematic view of the position of the gimbal when the present invention is applied to a horizontal wire clamp.

Detailed Description

The invention relates to semi-automatic universal low-resistance test high-altitude jointing clamp, which comprises two clamp bodies 1 which are hinged, wherein one end of each clamp body 1 is hinged with a wire clamping block 2, the wire clamping block 2 can be used for clamping and testing a circuit to be detected, the other end of each clamp body 1 is provided with an opening-closing handle 3, a rotating shaft at the hinged position of the two clamp bodies 1 is provided with a torsion spring 4, the torsion spring 4 always has the tendency of enabling the two wire clamping blocks 2 to be contacted, and the wire clamping blocks 2 can be rotated and separated by pressing the two opening-closing handles 3 to overcome the mutual approach of the elasticity of the torsion spring 4, so that the circuit is released from being clamped.

In order to maintain the state of strutting of wire clamp piece 2, and when moving to waiting to detect circuit position department, realize touching self-locking function, just can let two wire clamp pieces 2 live the circuit centre gripping under one-man operation, all articulate in the both sides of one of them pincers body 1 and install insulator spindle 5, spacing groove 6 has been seted up to the tip of each insulator spindle 5, the both sides of another pincers body 1 all are equipped with spacing post 7 of 6 matched with in spacing groove, when spacing post 7 is located spacing groove 6, insulator spindle 5 can strut two wire clamp pieces 2 and separate. On insulator spindle 5 was applyed to the power that 2 one end pincers bodies of two wire clamp pieces 1 rotated to be close to, the direction of atress was mutually perpendicular with 6 length direction in spacing groove, under the prerequisite that does not have external force promotion insulator spindle 5, two wire clamp pieces 2 can maintain the state of strutting the separation, in case remove the wire pliers to circuit position department, exert one along 6 length's in spacing groove thrust to insulator spindle 5, insulator spindle 5 is convenient for rotate with spacing post 7 phase separations, do all can under torsional spring 4's effect, wire clamp piece 2 just can be with the circuit centre gripping, thereby realize touching self-locking function.

In order to adapt to the circuit of different positions department, let the jointing clamp can be with the orientation of arbitrary angle, realize the experimental wiring to various space angle line clamping face, still install universal joint 8 on the pincers bodies 1, install dismantled and assembled telescopic link 9 on the pedestal of universal joint 8, operating personnel holds telescopic link 9 and just can remove the jointing clamp on it to higher position, need not additionally to use appliances such as high-altitude vehicle or long ladder, and operating personnel is subaerial adjusts the relative position of universal joint 8, then holds telescopic link 9 and just can promote the jointing clamp to the position department of appointed wiring.

When carrying out circuit wiring and detecting, can spend longer time sometimes, in order to let the wire pliers stay the position department of established wiring, demolish telescopic link 9, avoid operating personnel's long-time handheld telescopic link 9, reduce operating personnel's intensity of labour to a certain extent. As shown in fig. 3, an insertion groove 10 is formed in the top of the telescopic rod 9, a first electromagnet 11 is installed at the bottom of the insertion groove 10, a vertical groove 12 is formed in the seat body of the universal joint 8, a connection iron block 13 is installed in the vertical groove 12, and the first electromagnet 11 is electrified to attract the connection iron block 13 to be close to the joint.

The upper end of connecting iron plate 13 is equipped with first spacing protruding edge 14, erects the bottom of groove 12 and is equipped with and first spacing protruding edge 14 matched with ring board 15, and first electro-magnet 11 circular telegram can attract to connect iron plate 13 and enter into inserting groove 10, and because the restriction of first spacing protruding edge 14 and ring board 15, connect iron plate 13 can not with the pedestal phase separation of universal joint 8, just so can realize being connected between universal joint 8 and the telescopic link 9.

When the wiring clamp is twined by the circuit and live, if power pulling telescopic link 9, when the pulling force is greater than the first electro-magnet 11 and to connecting the suction of iron plate 13, telescopic link 9 can take place to separate with universal joint 8, in order to avoid the condition that power pulling produced telescopic link 9 and the phase separation of universal joint 8, set up the sliding tray 16 of level setting in telescopic link 9, sliding tray 16 is linked together with inserting groove 10. A positioning iron column 17 is installed in the sliding groove 16 in a matched mode, a second limiting convex edge 18 is arranged on the positioning iron column 17, a spring 19 is sleeved on the periphery of the positioning iron column 17 on one side of the second limiting convex edge 18, an inclined plane 20 is arranged at one end, close to the inserting groove 10, of the positioning iron column 17, and the spring 19 always tends to push the inclined plane 20 to enter the inserting groove 10.

A positioning hole 21 matched with the positioning iron column 17 is formed in the connecting iron block 13, and when the first electromagnet 11 is electrified and is attracted with the connecting iron block 13, one end of the inclined surface 20 of the positioning iron column 17 is positioned in the positioning hole 21. Due to the arrangement of the inclined surface 20, the inclined surface 20 can be pushed to enable the positioning iron column 17 to overcome the elastic force of the spring 19 to enter the sliding groove 16 in the process of moving the positioning iron column 17 downwards. The second electromagnet 22 is installed at one end of the sliding groove 16 far away from the insertion groove 10, the second electromagnet 22 is electrified to enable the positioning iron column 17 to be completely located in the sliding groove 16 against the elastic force of the spring 19, so that unlocking of the connecting iron block 13 is achieved, when the first electromagnet 11 is electrified, the connecting iron block 13 can be withdrawn from the insertion groove 10, and as shown in fig. 4, separation of the telescopic rod 9 and the universal joint 8 is achieved.

Install knob switch on telescopic link 9, knob switch can control getting of first electro-magnet 11 and second electro-magnet 22 and lose the electricity, when carrying out telescopic link 9 and universal joint 8's connection operation, need to let first electro-magnet 11 get the electricity, lets second electro-magnet 22 lose the electricity simultaneously, just can enter into locating hole 21 like this in the iron prop 17 of location, first electro-magnet 11 can attract mutually with connection iron plate 13 simultaneously and connect. When carrying out the separation operation of telescopic link 9 and universal joint 8, need to let first electro-magnet 11 lose the electricity, let second electro-magnet 22 simultaneously get electric, location iron prop 17 can break away from in locating hole 21 like this, connects iron plate 13 also can with first electro-magnet 11 phase separation, and then realizes telescopic link 9 and universal joint 8's separation.

Further, as shown in fig. 5, the rotary switch includes a circular plate 23, a rotary wrench 24 is installed on the circular plate 23, one end of the rotary wrench 24 is connected to a power supply 25 through a wire, a movable contact piece 26 is installed at the other end of the rotary wrench 24, a first contact piece 27, a second contact piece 28 and a third contact piece 29 are installed on the circular plate 23, and the movable contact piece 26 can be respectively rotated to be connected to the first contact piece 27, the second contact piece 28 or the third contact piece 29. The first contact 27 is connected to the first electromagnet 11 by a wire, and the third contact 29 is connected to the second electromagnet 22 by a wire. When the movable contact piece 26 is moved to be engaged with the first contact piece 27, the first electromagnet 11 is energized, the second electromagnet 22 is de-energized, and the connection between the telescopic rod 9 and the universal joint 8 can be realized, when the movable contact piece 26 is moved to be engaged with the third contact piece 29, the second electromagnet 22 is energized, and the de-energization of the first electromagnet 11 can be realized, and the separation between the telescopic rod 9 and the universal joint 8 can be realized, and when the device is in a non-use state, the movable contact piece 26 is moved to be engaged with the second contact piece 28, wherein the second contact piece 28 is positioned between the first contact piece 27 and the third contact piece 29.

Furtherly, for realizing the centre gripping test function of jointing clamp to the circuit, be connected with detection line 30 on the clamp piece 2, the cover is equipped with ribbon 31 on the pincers body 1, and detection line 30 is located ribbon 31, fixes detection line 30 through ribbon 31, can effectively avoid detection line 30 and wait to detect and produce the interference between the circuit.

Because the field low-resistance wire clamp is exposed in the air for a long time to operate, an oxide layer is easily formed on the surface, if the wire clamp is not polished thoroughly during wiring, when a low-resistance direct-resistance test is carried out, the deviation between a low-resistance direct-resistance test result and an actual value is larger due to the fact that the additional resistance is increased through surface contact, and further misjudgment on the actual working condition of equipment is caused. For solving the above-mentioned problem, as shown in fig. 6, be equipped with the protruding sharp point 32 that the matrix was arranged on the medial surface of fastener piece 2, protruding sharp point 32's setting had both guaranteed the compactness with the fastener wiring, can pass through the special construction of contact surface sharp point matrix again, greatly reduced the contact additional resistance of jointing clamp and fastener, can ignore with normal experimental error comparison. When a wire clamp with a larger oxidation degree is encountered, the oxide layer can be polished off through the reciprocating motion of the contact surface, the extremely low additional resistance of the contact between the test jointing clamp and the wire clamp is realized, and the accuracy of test data is ensured.

The wiring clamp is not only limited to test wiring of low direct current resistance, but also can be used for testing equipment with the same test principle. The design opening of the test clamp is large, compared with a common test clamp, the test clamp can clamp a test target more stably, the contact surface contacted at the top is larger, and the test clamp can be in complete contact with the test target, so that the resistance interference is reduced, and the test precision is improved. The test wire clamp can be designed and manufactured by adopting 3D printing, and new spare parts can be printed at any time for replacement. The contact is designed to be a replaceable structure, so that the service life of the test wire clamp can be prolonged after the contact is worn, the test wiring time of the transformer substation can be shortened, the test precision can be improved, the service life of the test wire clamp can be prolonged, and the replacement frequency can be reduced.

The technical solution of the present invention is not limited to the scope of the embodiments of the present invention. The technical contents not described in detail in the invention are all known technologies.

Claims (5)

1. The utility model provides a test high altitude wiring pincers of semi-automatic universal low resistance which characterized in that: including two pincers bodies (1) of articulated connection, the one end of each pincers body (1) is all articulated to be installed with cable clamp (2), and the other end of pincers body (1) is equipped with opening and shutting handle (3), installs torsional spring (4) in the pivot of two pincers bodies (1) articulated positions, torsional spring (4) have the trend of letting two cable clamp (2) contact all the time, all articulates in the both sides of one of them pincers body (1) and installs insulator spindle (5), and spacing groove (6) have been seted up to the tip of each insulator spindle (5), and the both sides of another pincers body (1) all are equipped with spacing post (7) with spacing groove (6) matched with, and when spacing post (7) were located spacing groove (6), insulator spindle (5) can strut two cable clamp (2) and separate, still install universal joint (8) on pincers body (1), install dismantled and assembled telescopic link (9) on the pedestal of universal joint (8).

2. The semi-automatic universal low-resistance test high-altitude jointing clamp according to claim 1, wherein: the top of the telescopic rod (9) is provided with an insertion groove (10), the bottom of the insertion groove (10) is provided with a first electromagnet (11), a vertical groove (12) is formed in a base body of the universal joint (8), a connecting iron block (13) is installed in the vertical groove (12), the upper end of the connecting iron block (13) is provided with a first limiting convex edge (14), the bottom of the vertical groove (12) is provided with a circular ring plate (15) matched with the first limiting convex edge (14), the first electromagnet (11) is electrified to attract the connecting iron block (13) to enter the insertion groove (10), a horizontally arranged sliding groove (16) is formed in the telescopic rod (9), the sliding groove (16) is communicated with the insertion groove (10), a positioning iron column (17) is installed in the sliding groove (16) in a matched manner, a second limiting convex edge (18) is arranged on the positioning iron column (17), a spring (19) is arranged on the periphery of the positioning iron column (17) on one side of the second limiting convex edge (18), one end, close to the insertion groove (10), one end of the positioning iron column (17) is provided with a slope (20), the positioning iron column (13), and the positioning iron block (13) is always pushed to enter the first limiting iron block (21) when the positioning hole (13), inclined plane (20) one end of location iron prop (17) is located locating hole (21), and second electro-magnet (22) are installed to the one end of keeping away from inserting groove (10) in sliding tray (16), and second electro-magnet (22) circular telegram can let location iron prop (17) overcome the elasticity of spring (19) and be located sliding tray (16) completely, installs knob switch on telescopic link (9), and knob switch can control getting of first electro-magnet (11) and second electro-magnet (22) and lose the electricity.

3. The semi-automatic universal low-resistance test high-altitude jointing clamp according to claim 2, wherein: the rotary switch comprises a circular plate (23), a rotary wrench (24) is installed on the circular plate (23), one end of the rotary wrench (24) is connected with a power supply (25) through a conducting wire, a movable contact piece (26) is installed at the other end of the rotary wrench (24), a first contact piece (27), a second contact piece (28) and a third contact piece (29) are installed on the circular plate (23), the movable contact piece (26) can rotate to be connected with the first contact piece (27), the second contact piece (28) or the third contact piece (29) respectively, the first contact piece (27) is connected with the first electromagnet (11) through a conducting wire, and the third contact piece (29) is connected with the second electromagnet (22) through a conducting wire.

4. The semi-automatic universal low-resistance test high-altitude jointing clamp according to claim 1, wherein: the wire clamping block (2) is connected with a detection wire (30), the clamp body (1) is sleeved with a binding belt (31), and the detection wire (30) is located in the binding belt (31).

5. The semi-automatic universal low-resistance test high-altitude jointing clamp according to claim 1, wherein: the inner side surface of the wire clamping block (2) is provided with raised sharp points (32) which are arranged in a matrix manner.

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