CN115932343B - Partial discharge detector for outdoor cable connection point - Google Patents
Partial discharge detector for outdoor cable connection point Download PDFInfo
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- CN115932343B CN115932343B CN202310218327.5A CN202310218327A CN115932343B CN 115932343 B CN115932343 B CN 115932343B CN 202310218327 A CN202310218327 A CN 202310218327A CN 115932343 B CN115932343 B CN 115932343B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to the technical field of partial discharge detection, in particular to a partial discharge detector for an outdoor cable connection point, which comprises a box body, wherein four corners of the bottom of the box body are provided with four placing grooves along the diagonal direction of the box body, each placing groove is internally provided with a supporting structure, one side, close to a box cover, of the box body is provided with a detector main body, one end, far away from the other side, of the box body, which is hinged with the box cover is provided with a placing box, a self-clamping tester can be placed in the placing box, one side of the placing box is provided with a connecting wire winding frame, the outer part of the box body is provided with a placing frame, the placing frame is provided with a plurality of clamping pieces, and supporting rods are placed on the clamping pieces; the invention is provided with a plurality of support rods which are connected with the self-clamping tester, so that the cable can be detected only by lifting the self-clamping tester, and the workload of workers is further reduced.
Description
Technical Field
The invention relates to the technical field of partial discharge detection, in particular to a partial discharge detector for an outdoor cable connection point.
Background
Partial discharge refers to discharge which occurs between electrodes but does not penetrate the electrodes, and is a phenomenon that repeated breakdown and extinction occur under the action of high electric field intensity due to weak current existing in the insulation of equipment or defects caused in the production process. It is characterized by that it can make gas breakdown in the insulation, local breakdown of solid or liquid medium in a small range or local breakdown discharge due to concentration of field intensity at edge and sharp corner position of metal surface, etc.. The energy of this discharge is small, so its short-term presence does not affect the insulation strength of the electrical device. However, if the insulation of the electrical equipment is continuously subjected to partial discharge at the operating voltage, the accumulated effect of the weak discharge gradually deteriorates the dielectric properties of the insulation and enlarges the partial defects, and finally leads to the whole insulation breakdown. The type of discharge is classified into an internal discharge, a surface discharge, and a corona discharge of an insulating material.
The utility model discloses a detector is put in office of outdoor cable tie point to chinese patent CN202111035468.0, when using this detector, need hold handheld mechanism, adjust the height of detector body, upwards lift whole detector, and detector quality, volume are all great for staff's work burden is great.
Disclosure of Invention
According to the invention, the plurality of support rods are connected with the self-clamping tester, so that the cable can be detected only by lifting the self-clamping tester, and the workload of workers is further reduced.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
the utility model provides a detector is put in office of outdoor cable tie point, the power distribution box comprises a box body, the upper portion of box is the case lid, one side of box is articulated with one side of case lid, four angles of box bottom have been seted up along its diagonal direction, all be provided with the bearing structure who is used for supporting the box in every standing groove, the inside of box is close to the detector main part that is used for detecting with the articulated one side of case lid, the inside one end of keeping away from the articulated opposite side of case lid of box is provided with places the box, can place in the box be used for with the self-clamping tester who is tested cable connection, one side of placing the box is provided with the connecting wire winding frame that is used for winding the connecting wire, be provided with the rack on the box outside be close to with the articulated wall of case lid, be provided with a plurality of holder on the rack, be placed the bracing piece that is used for supporting self-clamping tester on the holder, the bracing piece is the insulator spindle, the one end of bracing piece is the screw thread shaft, the other end of bracing piece is the screw hole, the screw shaft cooperatees with the screw hole.
Preferably, the self-clamping tester comprises a U-shaped frame, an opening of the U-shaped frame faces the horizontal direction, a clamping block used for clamping a test cable is arranged in the U-shaped frame, the opening of the clamping block faces downwards, a connecting structure is arranged between the upper end of the clamping block and the upper end of the U-shaped frame, the upper end of the connecting structure is fixedly connected with the inner wall of the upper end of the U-shaped frame, the lower end of the connecting structure is slidably connected with the clamping block, self-clamping structures are arranged at two ends of the connecting structure, and a second connecting seat used for being connected with a supporting rod is arranged on the lower surface of the lower end of the U-shaped frame.
Preferably, the upper surface of grip block has offered first spout from top to bottom, the second spout has all been offered to the both sides of the open end of grip block, the second spout is orthogonal with first spout, connection structure is including setting up the first link plate in first spout, first link plate and grip block sliding connection, self-clamping structure includes first link and second link, the one end fixed connection of first link and first link plate, the other end vertical upward extension of first link and be connected with the upper end of second link, the vertical setting of second link, and the second link is parallel with the lateral wall of grip block, the lower extreme of second connection is provided with the extrusion piece to one side, the inclined plane of extrusion piece to one side is kept away from the grip block from top to bottom in the slope, be provided with slip clamp arm in the second spout, slip clamp arm and grip block sliding connection.
Preferably, the sliding clamping seat comprises a sliding block, the sliding block is arranged in the second sliding groove in a sliding manner, a connecting rod is arranged on one side, facing the first sliding groove, of the sliding block, the connecting rod is perpendicular to the sliding block, one end of the connecting rod is connected with the sliding block, the other end of the connecting rod penetrates through the bottom of the second sliding groove, a clamping block is arranged on the other end of the connecting rod, the clamping block is arranged at the communicating position of the second sliding groove and the first sliding groove, a second reset spring is sleeved on the connecting rod, one end of the second reset spring is connected with the side wall of the sliding block, and the other end of the second reset spring is connected with the bottom of the second sliding groove.
Preferably, two first reset springs are symmetrically arranged in the first sliding groove on the middle surface of the clamping block, one end of each first reset spring is connected with the lower surface of the first connecting plate, the other end of each first reset spring is connected with the groove bottom of the first sliding groove, a limiting guide post is arranged between the two first reset springs, the bottom of each limiting guide post is fixedly connected with the bottom of the corresponding first sliding groove, and the upper end of each limiting guide post upwards penetrates through the corresponding first connecting plate and is in sliding connection with the corresponding first connecting plate.
Preferably, the second connecting seat comprises a second connecting plate, the upper end of the second connecting plate is fixedly connected with the bottom of the U-shaped frame, the lower end of the second connecting plate is provided with a first connecting rod used for connecting the supporting rod, the upper end of the first connecting rod is hinged with the lower end of the second connecting plate, and the lower end of the first connecting rod is a threaded end.
Preferably, one end of the first connecting rod, which is hinged with the second connecting plate, is symmetrically provided with two baffles about the middle surface of the first connecting rod, a third reset spring is arranged between the baffles and the second connecting plate, one end of the second reset spring is hinged with the second connecting plate through a hinge seat, and the other end of the second reset spring is hinged with the baffles through the hinge seat.
Preferably, the connecting wire winding frame comprises a fixed shaft, one end of the fixed shaft is provided with a slot, the slot is fixedly connected with the inner wall of the box body, one end of the fixed shaft is inserted into the slot, a connecting wire winding disc is sleeved on the outer surface of the fixed shaft and is connected with the fixed shaft in a rotating mode, and one end, far away from the slot, of the connecting wire winding disc is provided with a rotating handle.
Preferably, the support frame is still set up to the below of the one end that the slot was kept away from to the connecting wire winding dish, and the support frame includes the fixed bolster, and the bottom of fixed bolster and the bottom fixed connection of box are semi-circular, and the top of fixed bolster is semi-circular, and it is provided with a plurality of gyro wheel to encircle its centre of a circle annular array in the semi-circular, and the gyro wheel rotates with the fixed bolster to be connected, and the middle part of the outer periphery of gyro wheel is seted up flutedly, the outer periphery and the a plurality of gyro wheel roll connection of the tip of connecting wire winding dish.
Preferably, the supporting structure comprises a first connecting seat, the first connecting seat is arranged at a corner close to the bottom of the box body, supporting legs are arranged in the placing grooves, one end of each supporting leg is hinged to the first connecting seat, and an angle limiting block used for limiting the outward rotating angle of each supporting leg is arranged on the first connecting seat and close to one side hinged to each supporting leg.
Compared with the prior art, the invention has the beneficial effects that:
the invention is provided with the plurality of support rods which are connected with the self-clamping tester, and a worker can extend the length of the support rods according to the height of the cable to be tested on site and connect the self-clamping tester with the cable to be tested, so that the cable can be detected only by lifting the self-clamping tester, and the workload of the worker is further reduced.
Drawings
FIG. 1 is a perspective view of a partial discharge detector of an outdoor cable connection point;
FIG. 2 is a second perspective view of a partial discharge detector of an outdoor cable connection point;
FIG. 3 is a perspective view of a partial discharge detector of an outdoor cable connection point;
FIG. 4 is a perspective view of a self-clamping tester in a partial discharge tester for an outdoor cable connection point;
FIG. 5 is a perspective view of a clamp block, connection structure and self-clamping structure in a partial discharge detector of an outdoor cable connection point;
FIG. 6 is a cross-sectional view of a grip block, attachment structure and self-clamping structure in a partial discharge detector of an outdoor cable attachment point;
FIG. 7 is an enlarged view of a portion of FIG. 6 at A;
FIG. 8 is an isometric view of a connection structure in a partial discharge detector of an outdoor cable tie point;
FIG. 9 is a perspective view of a portion of a U-shaped frame, a second connector and a support bar of the outdoor cable connection point partial discharge detector;
FIG. 10 is a partial enlarged view at B in FIG. 9;
FIG. 11 is a perspective view of a connection wire winding frame in a partial discharge detector of an outdoor cable connection point;
fig. 12 is a partially enlarged view at C in fig. 11.
The reference numerals in the figures are:
1-a box body; 11-a case cover; 12-placing grooves;
2-a support structure; 21-a first connection base; 22-supporting legs; 23-an angle limiting block;
3-a detector body;
4-placing a box;
5-self-clamping tester;
51-U-shaped frames;
52-clamping blocks; 521-a first chute; 522-a second chute;
53-linkage; 531-first connection plate; 532—a first return spring; 533-limit guide post;
54-self-clamping structure; 541-a first connection frame; 542-a second link; 543-obliquely extruding a block; 544-a sliding clamping arm; 5441-slider; 5442-clamping blocks; 5443-connecting rod; 5444-a second return spring;
55-a second connection base; 551-a second connection plate; 552-a first connecting rod; 5521-threaded end; 553, a baffle; 554-a third return spring;
6-a connecting wire winding frame;
61-a fixed shaft;
62-a connecting wire winding disc; 621-turning the handle;
63-slots;
64-supporting frames; 641-fixing the bracket; 642-a roller;
7-placing a rack; 71-a clamping member;
8-supporting rods; 81-a threaded shaft; 82-threaded holes.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1 to 12, there is shown: the utility model provides a detector is put in office of outdoor cable tie point, including box 1, the upper portion of box 1 is case lid 11, one side of box 1 is articulated with one side of case lid 11, four standing grooves 12 have been seted up along its diagonal direction to four angles of box 1 bottom, all be provided with the bearing structure 2 that is used for supporting box 1 in every standing groove 12, the inside of box 1 is close to and is provided with the detector main part 3 that is used for detecting with one side articulated with case lid 11, the one end that box 1 is inside keep away from with the articulated opposite side of case lid 11 is provided with places box 4, can place in placing box 4 be used for with the self-clamping tester 5 of being tested cable connection, one side of placing box 4 is provided with the connecting wire winding frame 6 that is used for winding the connecting wire, be provided with rack 7 on the outside of box 1 is close to with on the articulated wall with case lid 11, be provided with a plurality of clamping piece 71, be used for supporting self-clamping tester 5's bracing piece 8 on the rack, bracing piece 8 is the insulator spindle, the one end of bracing piece 8 is screw thread shaft 81, the other end of bracing piece 8 is screw thread shaft 82, screw thread shaft 82 cooperatees with screw thread shaft 82.
When working personnel carry out detection work outdoors, firstly, the supporting structure 2 at the bottom of the box body 1 is opened, the box body 1 is horizontally placed on the ground, then the box cover 11 is opened, the self-clamping tester 5 is taken out from the placing box 4, then a corresponding number of supporting rods 8 are used according to the height of the cable to be detected, a plurality of supporting rods 8 are connected end to end in sequence, the supporting rods 8 at the forefront end are fixedly connected with the self-clamping tester 5, then the connecting wire winding frame 6 is rotated, a longer connecting wire is released, one end of the connecting wire is connected with the detector main body 3, the other end of the connecting wire is connected with the self-clamping tester 5, the detector main body 3 is electrically connected with the self-clamping tester 5, after equipment connection is finished, the self-clamping tester 5 is supported by the working personnel, the self-clamping tester 5 is connected with the cable to be detected, then the test is carried out, the heights between the cable to be detected and the ground are different in each working site, and the working sites can be prolonged according to the heights of the cable to be detected, the lengths of the supporting rods 8 are connected with the cable to be detected, and the self-clamping tester 5 can be detected by the working personnel on site, and the working personnel can be relieved.
Referring to fig. 2 and 4, it is shown that: the self-clamping tester 5 comprises a U-shaped frame 51, an opening of the U-shaped frame 51 faces to the horizontal direction, a clamping block 52 used for clamping a test cable is arranged in the U-shaped frame 51, the opening of the clamping block 52 faces downwards, a connecting structure 53 is arranged between the upper end of the clamping block 52 and the upper end of the U-shaped frame 51, the upper end of the connecting structure 53 is fixedly connected with the inner wall of the upper end of the U-shaped frame 51, the lower end of the connecting structure 53 is slidably connected with the clamping block 52, self-clamping structures 54 are arranged at two ends of the connecting structure 53, and a second connecting seat 55 used for being connected with a supporting rod 8 is arranged on the lower surface of the lower end of the U-shaped frame 51.
The connecting structure 53 and the two self-clamping structures 54 surround three sides of the clamping block 52, a gap exists between the lower end of the clamping block 52 and the lower end of the U-shaped frame 51, a worker lifts the self-clamping tester 5 upwards beyond the cable to be tested, then moves the clamping block 52 to the position right above the cable to be tested, the downward opening of the clamping block 52 faces the cable to be tested, then moves the clamping block 52 downwards, the upper half of the cable to be tested is connected with the clamping block 52, meanwhile, the worker weakens the supporting force on the self-clamping tester, the gravity of the self-clamping tester is larger than the supporting force, the cable to be tested provides the upward supporting force on the clamping block 52, therefore the clamping block 52 cannot drop downwards, the U-shaped frame 51, the connecting structure 53 and the self-clamping structure 54 drop down due to the fact that the received gravity is larger than the received supporting force, the two self-clamping structures 54 are close to each other, the lower half of the cable to be tested is clamped, and the clamping block 52 is connected with the cable to be tested, and the falling of the clamping block 52 from the cable to be tested is avoided.
Referring to fig. 5 and 6, it is shown that: the upper surface of grip block 52 has offered the first spout 521 from top to bottom, the second spout 522 has all been offered to both sides of the open end of grip block 52, second spout 522 is orthogonal with first spout 521, connection structure 53 is including setting up the first link plate 531 in first spout 521, first link plate 531 and grip block 52 sliding connection, self-clamping structure 54 includes first link 541 and second link 542, the one end fixed connection of first link plate 541 and the one end of first link plate 531, the other end vertical upwards extension of first link 541 and be connected with the upper end of second link 542, the vertical setting of second link 542, and the second link 542 is parallel with the lateral wall of grip block 52, the lower extreme of second link is provided with the oblique extrusion piece 543, the inclined plane of oblique extrusion piece 543 is kept away from grip block 52 from top to bottom in the slope, be provided with slip clamp arm 544 in the second spout, slip clamp arm 544 and grip block 52 sliding connection.
When the U-shaped frame 51, the connecting structure 53 and the self-clamping structure 54 are subjected to a supporting force smaller than gravity, the first connecting plate 531 slides towards the bottom of the groove along the first sliding groove 521 on the clamping block 52, meanwhile, the first connecting plate 531 drives the first connecting frame 541 to move downwards, the first connecting frame 541 drives the second connecting frame 542 to move downwards along the side wall of the clamping block 52, the second connecting frame 542 drives the inclined extrusion block 543 to move downwards vertically, the inclined extrusion block 543 extrudes the sliding clamping arms 544 to move towards the opening of the clamping block 52, and when the inclined extrusion block 543 moves downwards to the lowest position, two opposite ends of the two sliding clamping arms 544 on two sides of the opening of the clamping block 52 are abutted against each other, so that the two sliding clamping arms 544 are driven to clamp a cable to be tested by the gravity of the U-shaped frame 51, the connecting structure 53 and the self-clamping structure 54.
Referring to fig. 6 and 7, it is shown that: the sliding clamping seat comprises a sliding block 5441, the sliding block 5441 is arranged in the second sliding groove 522 in a sliding mode, a connecting rod 5443 is arranged on one side, facing the first sliding groove 521, of the sliding block 5441, the connecting rod 5443 is perpendicular to the sliding block 5441, one end of the connecting rod 5443 is connected with the sliding block 5441, the other end of the connecting rod 5443 penetrates through the groove bottom of the second sliding groove 522, a clamping block 5442 is arranged at the other end of the connecting rod 5443, the clamping block 5442 is arranged at the communicating position of the second sliding groove 522 and the first sliding groove 521, a second reset spring 5444 is sleeved on the connecting rod 5443, one end of the second reset spring 5444 is connected with the side wall of the sliding block 5441, and the other end of the second reset spring 5444 is connected with the groove bottom of the second sliding groove 522.
Under the initial state, the bottommost end of the inclined extrusion block 543 is abutted with the end part of the sliding block 5441, after the clamping block 52 is clamped on a cable to be tested, the U-shaped frame 51, the connecting structure 53 and the self-clamping structure 54 are subjected to gravity action and fall downwards, the inclined extrusion block 543 gradually moves downwards, the inclined surface of the inclined extrusion block 543 extrudes the sliding block 5441 to move towards the opening part of the clamping block 52 along the second sliding groove 522, the sliding block 5441 pushes the connecting rod 5443 to move, the connecting rod 5443 pushes the clamping block 5442 forwards, at the moment, the second reset spring 5444 is compressed, air guide grooves at two ends of the sliding block 5441 discharge air between the sliding block 5441 and the second groove bottom in the process that the sliding block 5441 moves towards the groove bottom of the second sliding groove 522, the sliding block 5441 slides in the second sliding groove 522 conveniently, after the test of the detector is completed, workers increase upward supporting force, the U-shaped frame 51, the connecting structure 53 and the self-clamping structure 54 move upwards, the inclined extrusion block 5444 resets, the clamping blocks 5442, and the clamping blocks 5442 at two sides of the cable to be tested are mutually kept away, so that the clamping blocks 5442 at two sides of the cable to be tested are mutually kept away from each other, and reset after the test is completed.
Referring to fig. 6 and 8, it is shown that: two first return springs 532 are symmetrically arranged in the first slide groove 521 on the middle surface of the clamping block 52, one end of each first return spring 532 is connected with the lower surface of the first connecting plate 531, the other end of each first return spring 532 is connected with the bottom of the first slide groove 521, a limiting guide post 533 is arranged between the two first return springs 532, the bottom caused by limiting is fixedly connected with the bottom of the first slide groove 521, and the upper end of each limiting guide post 533 passes through the first connecting plate 531 upwards and is connected with the first connecting plate 531 in a sliding mode.
The staff reduces ascending holding power, and first connecting plate 531 receives gravity and moves down along first spout 521, and first reset spring 532 is compressed this moment, and after the cable detection that awaits measuring was accomplished to the detecting instrument, staff's ascending holding power of increase, first reset spring 532 resets, jack-up first connecting plate 531 upwards, and two first reset springs 532 that set up with respect to spacing guide pillar 533 symmetry can provide the same holding power to the both ends of first connecting plate 531 for the both ends of first connecting plate 531 can synchronous upwards remove or move down, thereby make first connecting plate 531 can smooth slide in first spout 521.
Referring to fig. 4 and 9, it is shown that: the second connecting seat 55 comprises a second connecting plate 551, the upper end of the second connecting plate 551 is fixedly connected with the bottom of the U-shaped frame 51, the lower end of the second connecting plate 551 is provided with a first connecting rod 552 for connecting the supporting rod 8, the upper end of the first connecting rod 552 is hinged with the lower end of the second connecting plate 551, and the lower end of the first connecting rod 552 is a connecting hole end 5521.
The staff is inconvenient to arrive under the position to be measured of some cables, and therefore cannot detect, therefore, the second connecting plate 551 and the first connecting rod 552 are arranged at the lower end of the U-shaped frame 51, the staff firstly connects one end of the support rod 8 provided with the threaded hole 82 with the connecting hole end 5521 of the first connecting rod 552, after connection is completed, the clamping block 52 is clamped on the cable to be measured, then oblique thrust is applied to the support rod 8, the clamping block 52 moves along the cable to be measured, and since the second connecting plate 551 and the first connecting rod 552 are hinged, the staff stands in a stable place and can move the clamping block 52 to any position of the cable to be measured, so that the safety of the staff is protected when any position of the cable can be detected.
Referring to fig. 9 and 10, it is shown that: one end of the first connecting rod 552 hinged to the second connecting plate 551 is symmetrically provided with two baffle plates 553 about the middle surface of the first connecting rod 552, a third reset spring 554 is arranged between the baffle plates 553 and the second connecting plate 551, one end of the second reset spring 5444 is hinged to the second connecting plate 551 through a hinge seat, and the other end of the second reset spring 5444 is hinged to the baffle plates 553 through a hinge seat.
Because the second connecting plate 551 is articulated with the first connecting rod 552, although the cable at a far distance can be detected, a certain included angle is formed between the self-clamping tester 5 and the supporting rod 8, so that a worker is inconvenient to clamp the clamping block 52 on the cable to be tested, the two ends of the first connecting rod 552 are provided with the baffle plates and the third reset springs 554, and the two third reset springs 554 provide upward supporting force for the baffle plates at the two ends of the first connecting rod 552, so that the first connecting rod 552 and the second connecting plate 551 are kept vertical, and the worker is convenient to clamp the clamping block 52 on the cable to be tested.
Referring to fig. 1 and 11, it is shown that: the connecting wire winding frame 6 comprises a fixed shaft 61, one end of the fixed shaft 61 is provided with a slot 63, the slot 63 is fixedly connected with the inner wall of the box body 1, one end of the fixed shaft 61 is inserted into the slot 63, a connecting wire winding disc 62 is sleeved on the outer surface of the fixed shaft 61, the connecting wire winding disc 62 is rotationally connected with the fixed shaft 61, and one end, far away from the slot 63, of the connecting wire winding disc 62 is provided with a rotating handle 621.
The staff will twine the connecting wire winding dish 62 cover that has the connecting wire on fixed axle 61, insert the one end of fixed axle 61 again in slot 63, at the detection scene staff rotates handle 621, will twine the connecting wire release department sufficient length on connecting wire winding dish 62, connect self-clamping tester 5, the cable that awaits measuring detects the completion after, withdraw self-clamping tester 5, disconnect connecting wire and self-clamping tester 5, rotate handle 621 again, withdraw the connecting wire in the connecting wire winding dish 62, thereby realize orderly release and retrieve the connecting wire, avoid the connecting wire to scatter at will.
Referring to fig. 1, 11 and 12, there is shown: the support frame 64 has still been set up to the below of the one end that the connecting wire winding dish 62 kept away from slot 63, and support frame 64 includes the fixed bolster 641, and the bottom of fixed bolster 641 and the bottom fixed connection of box 1 are semicircular in the top of fixed bolster 641, and semicircular in-round its centre of a circle annular array is provided with a plurality of gyro wheel 642, and gyro wheel 642 is connected with the fixed bolster 641 rotation, and the middle part of the outer periphery of gyro wheel 642 is fluted, and the outer periphery of the tip of connecting wire winding dish 62 is connected with a plurality of gyro wheel 642 in a rolling way.
After the connecting wire is wound on the connecting wire winding disc 62, the mass of the connecting wire winding disc is increased, so that the connecting part of the fixing shaft 61 and the slot 63 is subjected to larger force, the fixing support frame 64 and the roller 642 are arranged at one end of the connecting wire winding disc 62 far away from the inner wall of the box body 1, upward supporting force is provided for one end of the connecting wire winding frame 6, and when the connecting wire winding frame 6 is rotated, the roller 642 can reduce friction between the connecting wire winding disc 62 and the support frame 64, so that upward supporting force is provided for the connecting wire winding disc 62 on the premise of not affecting rotation of the connecting wire winding frame 6.
Referring to fig. 1 and 3, it is shown that: the supporting structure 2 comprises a first connecting seat 21, wherein the first connecting seat 21 is arranged at a corner close to the bottom of the box body 1, supporting legs 22 are arranged in the placing groove 12, one end of each supporting leg 22 is hinged with the first connecting seat 21, and an angle limiting block 23 used for limiting the outward rotating angle of each supporting leg 22 is arranged on one side, close to the hinge of each supporting leg 22, of the first connecting seat 21.
The supporting leg 22 is accomodate in the standing groove 12 under initial condition, and angle stopper 23 downwards protruding box 1 bottom surface when box 1 directly places subaerial, four angle stopper 23 and ground contact avoid the bottom of box 1 directly to contact with ground, before using the detector, will accomodate the supporting leg 22 roll-out in the standing groove 12, make supporting leg 22 and angle stopper 23 butt to make box 1 keep away from ground, and then the inside instrument and the equipment of staff's operation box 1 of being convenient for more.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. The utility model provides a detector is put in office of outdoor cable tie point, a serial communication port, including box (1), the upper portion of box (1) is case lid (11), one side of box (1) is articulated with one side of case lid (11), four standing grooves (12) have been seted up along its diagonal direction to four angles of box (1) bottom, all be provided with in every standing groove (12) bearing structure (2) that are used for supporting box (1), the inside of box (1) is close to detector main part (3) that are used for detecting with one side articulated of case lid (11), the one end that is kept away from inside and is articulated with case lid (11) of box (1) is provided with places box (4), can place in place box (4) be used for being connected with tested cable from clamp tester (5), one side of placing box (4) is provided with connecting wire winding frame (6) that are used for winding the connecting wire, be provided with on the wall that box (1) outside is close to be articulated with case lid (11) rack (7), be provided with on rack (7) clamping piece (71), be used for holding rod (8) screw hole (8), one end (8) is for holding up (8) screw thread hole (82), the threaded shaft (81) is matched with the threaded hole (82);
the self-clamping tester (5) comprises a U-shaped frame (51), wherein an opening of the U-shaped frame (51) faces to the horizontal direction, a clamping block (52) for clamping a test cable is arranged in the U-shaped frame (51), the opening of the clamping block (52) faces downwards, a connecting structure (53) is arranged between the upper end of the clamping block (52) and the upper end of the U-shaped frame (51), the upper end of the connecting structure (53) is fixedly connected with the inner wall of the upper end of the U-shaped frame (51), the lower end of the connecting structure (53) is in sliding connection with the clamping block (52), self-clamping structures (54) are arranged at two ends of the connecting structure (53), and a second connecting seat (55) used for being connected with a supporting rod (8) is arranged on the lower surface of the lower end of the U-shaped frame (51);
the upper surface of the clamping block (52) is provided with a first chute (521) from top to bottom, two sides of the opening end of the clamping block (52) are provided with second chutes (522), the second chutes (522) are orthogonal to the first chute (521), the connecting structure (53) comprises a first connecting plate (531) arranged in the first chute (521), the first connecting plate (531) is in sliding connection with the clamping block (52), the self-clamping structure (54) comprises a first connecting frame (541) and a second connecting frame (542), one end of the first connecting frame (541) is fixedly connected with one end of the first connecting plate (531), the other end of the first connecting frame (541) extends vertically upwards and is connected with the upper end of the second connecting frame (544), the second connecting frame (542) is vertically arranged, the second connecting frame (542) is parallel to the side wall of the clamping block (52), the lower end of the second connection is provided with an inclined extrusion block (543), the inclined surface of the inclined extrusion block (543) is inclined from top to bottom and far away from the clamping block (52), and a clamping arm (52) is arranged in the second chute (522), and the sliding arm (544) is connected with the sliding clamping block (52);
the sliding clamping seat comprises a sliding block (5441), the sliding block (5441) is arranged in a second sliding groove (522) in a sliding manner, a connecting rod (5443) is arranged on one side, facing the first sliding groove (521), of the sliding block (5441), the connecting rod (5443) is perpendicular to the sliding block (5441), one end of the connecting rod (5443) is connected with the sliding block (5441), the other end of the connecting rod (5443) penetrates through the groove bottom of the second sliding groove (522), a clamping block (5442) is arranged at the other end of the connecting rod (5443), the clamping block (5442) is arranged at the communication position between the second sliding groove (522) and the first sliding groove (521), a second reset spring (5444) is sleeved on the connecting rod (5443), one end of the second reset spring (5444) is connected with the side wall of the sliding block (5441), and the other end of the second reset spring (5444) is connected with the groove bottom of the second sliding groove (522).
Two first return springs (532) are symmetrically arranged in the first sliding groove (521) on the middle surface of the clamping block (52), one end of each first return spring (532) is connected with the lower surface of the corresponding first connecting plate (531), the other end of each first return spring (532) is connected with the groove bottom of the corresponding first sliding groove (521), a limit guide pillar (533) is arranged between the two first return springs (532), the bottom of each limit guide pillar is fixedly connected with the bottom of the corresponding first sliding groove (521), and the upper end of each limit guide pillar (533) upwards penetrates through the corresponding first connecting plate (531) and is in sliding connection with the corresponding first connecting plate (531).
2. The partial discharge detector of an outdoor cable connection point according to claim 1, wherein the second connection seat (55) comprises a second connection plate (551), the upper end of the second connection plate (551) is fixedly connected with the bottom of the U-shaped frame (51), a first connection rod (552) for connecting the support rod (8) is arranged at the lower end of the second connection plate (551), the upper end of the first connection rod (552) is hinged with the lower end of the second connection plate (551), and the lower end of the first connection rod (552) is a threaded end (5521).
3. The partial discharge detector of an outdoor cable connection point according to claim 2, wherein two baffles (553) are symmetrically arranged on one end of the first connection rod (552) hinged to the second connection plate (551) with respect to the middle surface of the first connection rod (552), a third return spring (554) is arranged between the baffles (553) and the second connection plate (551), one end of the second return spring (5444) is hinged to the second connection plate (551) through a hinge seat, and the other end of the second return spring (5444) is hinged to the baffles (553) through a hinge seat.
4. The partial discharge detector of an outdoor cable connection point according to claim 1, wherein the connection wire winding frame (6) comprises a fixed shaft (61), one end of the fixed shaft (61) is provided with a slot (63), the slot (63) is fixedly connected with the inner wall of the box body (1), one end of the fixed shaft (61) is inserted into the slot (63), the connection wire winding disc (62) is sleeved on the outer surface of the fixed shaft (61), the connection wire winding disc (62) is rotationally connected with the fixed shaft (61), and one end, far away from the slot (63), of the connection wire winding disc (62) is provided with a rotating handle (621).
5. The partial discharge detector of an outdoor cable connection point according to claim 4, wherein a supporting frame (64) is further arranged below one end of the connecting wire winding disc (62) far away from the slot (63), the supporting frame (64) comprises a fixing support (641), the bottom of the fixing support (641) is fixedly connected with the bottom of the box body (1), the upper part of the fixing support (641) is semicircular, a plurality of rollers (642) are arranged in the semicircle around the circle center of the fixing support (641) in a circular array, the rollers (642) are rotatably connected with the fixing support (641), a groove is formed in the middle of the outer circumferential surface of the rollers (642), and the outer circumferential surface of the end part of the connecting wire winding disc (62) is in rolling connection with the plurality of rollers (642).
6. The partial discharge detector of an outdoor cable connection point according to claim 1, wherein the supporting structure (2) comprises a first connecting seat (21), the first connecting seat (21) is arranged at a corner close to the bottom of the box body (1), supporting legs (22) are arranged in the placing groove (12), one end of each supporting leg (22) is hinged to the first connecting seat (21), and an angle limiting block (23) used for limiting the outward rotating angle of each supporting leg (22) is arranged on one side, close to the hinge of each supporting leg (22), of the first connecting seat (21).
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| CN202310218327.5A CN115932343B (en) | 2023-03-09 | 2023-03-09 | Partial discharge detector for outdoor cable connection point |
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| CN115932343A (en) | 2023-04-07 |
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