Insulating rod and rope leakage current monitoring device

Abstract

The utility model discloses an insulating rod and rope leakage current monitoring device, which comprises a host, a fixed clamp and a movable clamp, the fixed clamp is arranged at the top of the host, the movable clamp is hinged to the top side of the fixed clamp, a semi-circular semi-core cylinder is arranged between the fixed clamp and the movable clamp, and the fixed clamp and the movable clamp are hinged to the top side of the fixed clamp. The two groups of half core cylinders form a separable cylindrical structure; and a locking mechanism for locking the movable clamp is arranged on the opening side of the top of the fixed clamp. The beneficial effects of the utility model are that two groups of half core cylinders with adjustable sizes are arranged as a live working tool clamping monitoring structure, live working tools with different sizes can be monitored in real time, leakage current of an insulating rod and an insulating rope is ensured to be continuously monitored, potential risks caused by overhigh leakage current are avoided, and the working efficiency is improved. The application range is wider; and meanwhile, the movable clamp with the locking mechanism is arranged to be matched with the fixed clamp to clamp the hot-line work tool, so that the clamping stability and the clamping opening and closing operation speed in the monitoring process can be improved.

Description

Technical Field

[0001] The utility model relates to the field of protective equipment for live working, in particular to a leakage current monitoring device for an insulating rod and a rope. Background Art

[0002] The leakage current monitoring device is used for leakage current testing of insulating rods and insulating ropes. It provides safety protection for live working by judging whether the leakage current exceeds the standard value. According to the live working standards of the power industry: the safe current that the human body can withstand is below 1mA, that is, the current passing through the human body during live working shall not exceed 1mA to ensure that the leakage current flowing through the human body does not harm the operator. Insulating rods, insulating ropes, etc. are common tools in live working, so their own leakage current shall not exceed the current value allowed by the human body under any circumstances. Therefore, live working tools such as insulating rods and insulating ropes should be equipped with leakage current monitoring and alarm devices. The main purpose of this device is to conduct real-time insulation monitoring of tools in live working to ensure the personal safety of live working personnel. It prevents accidents caused by on-site operators not being aware of the existing safety hazards when the insulation does not meet the standards due to weather, aging of equipment, humid weather, etc. However, the current insulating rod and rope leakage current monitoring devices cannot adapt to live working tools of different sizes when in use. When installing on live working tools of different diameters, it is necessary to select monitoring devices of corresponding sizes to ensure that they can be stably clamped on the live working tools. This is inconvenient to use and is prone to poor monitoring stability due to loose clamping, affecting the monitoring effect. It is also easy to detach and lose the real-time monitoring function. Utility Model Content

[0003] The purpose of the utility model is to provide an insulating rod and rope leakage current monitoring device in order to solve the above-mentioned problem, which can monitor live working tools of different sizes in real time, ensure that the leakage current of the insulating rod and insulating rope is continuously monitored, and avoid potential dangers caused by excessive leakage current. See the following description for details.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides an insulating rod and rope leakage current monitoring device, comprising a main unit, a fixed clamp and a movable clamp, wherein the fixed clamp is arranged on the top of the main unit, the movable clamp is hinged on the top side of the fixed clamp, and a semi-circular half core barrel is arranged between the fixed clamp and the movable clamp, and two groups of the half core barrels form a separable cylindrical structure, and a locking mechanism for locking the movable clamp is arranged on the top opening side of the fixed clamp;

[0006] The fixed clamp includes a front clamp body and a rear clamp body which are tightly pressed together front and back and fixed to the top side of the main machine, a rotating shaft supporting the rotation of the movable clamp is fixed to the front clamp body and the rear clamp body on the side away from the locking mechanism, a locking cylinder is provided on the side of the front clamp body away from the rotating shaft, and a guide cylinder is provided on the rear clamp body corresponding to the locking cylinder, the movable clamp includes a main clamp body and an auxiliary clamp body which are tightly pressed together front and back, and a rotating ear which rotates and cooperates with the rotating shaft is fixed to the bottom side of the main clamp body and the auxiliary clamp body.

[0007] The above-mentioned insulating rod and rope leakage current monitoring device is used. When in use, the operating piece is pulled backward to drive the lock shaft, the lock plate and the pressure cover to move backward, so that the lock plate extending between the four groups of limit blocks is disengaged, and the spring is compressed at the same time. At this time, the limit block releases the locking state of the lock plate, and the operating piece is rotated to drive the lock shaft and the lock plate to rotate, and the lock plate is rotated to a state consistent with the opening direction of the lock claw of the movable clamp. At this time, the lock plate releases the locking state of the lock claw, and then the movable clamp can be supported to rotate upward and open with the cooperation of the rotating shaft and the rotating ear, so that the upper group of half-core barrels can be lifted upward by the movable clamp, thereby exposing the two groups The clamping monitoring channel between the half-core barrels clamps the live working tool to be monitored between the two groups of half-core barrels, resets the movable clamp, rotates and releases the operating piece at the same time to lock the locking plate and the locking claw, and then clamps the locking plate into the cross-shaped locking groove between the multiple groups of limit blocks again to realize the locking process of the movable clamp and the fixed clamp; when it is necessary to adjust the diameter of the internal clamping monitoring channel of the half-core barrel according to the diameter of different live working tools, turn the movable clamp upward to open it, and remove the inner movable piece according to the outer diameter of the required clamping tool until the movable piece with the corresponding inner diameter is adapted to the required live working tool to realize the diameter adjustment process of the clamping channel.

[0008] Preferably, the locking cylinder is a hollow cylindrical structure, and four groups of limit blocks are arranged around the rear end of the locking cylinder, and a cross-shaped locking groove is formed between the four groups of limit blocks.

[0009] Preferably, the locking mechanism includes a locking shaft that passes through the guide cylinder longitudinally, the locking shaft is clearance-matched with the guide cylinder, a locking plate that extends longitudinally to the inner side of the limit block is fixed to the front end of the locking shaft, the locking plate is clearance-matched with the locking groove, a locking claw is provided at the bottom of the main clamp body, the locking claw is a C-shaped hook structure with an opening facing downward, and the opening width of the locking claw is greater than the width of the locking plate.

[0010] Preferably, the locking plate extends into one end of the locking cylinder and is fixed with a longitudinally extending mounting rod, the front end of the mounting rod is provided with a pressure cover, the end of the pressure cover mounting rod is threadedly fitted with a mounting screw for pressing the pressure cover, and the end face of the pressure cover is provided with a spring that presses against the front side of the limit block in the locking cylinder.

[0011] Preferably, a blocking cover is fixed to the rear end of the lock shaft, the diameter of the blocking cover is larger than the outer diameter of the guide tube, and a thin sheet-shaped operating piece is fixed to the rear end of the blocking cover.

[0012] Preferably, a clamping plate extending backward along the outer circumference of the main clamping body is disposed on the rear side thereof, and a crimping groove for clamping and fitting the clamping plate is disposed on the front side of the auxiliary clamping body.

[0013] Preferably, the half core tube includes a semi-circular outer cover, the outer edge of the outer cover expands outward to form a stop edge that is snap-fitted to the fixed clamp and the movable clamp, a plurality of support strips are arranged on the inner side of the outer cover, a semi-circular fixed plate is arranged on the inner side of the support strip, and a plurality of overlapping movable plates are detachably arranged on the inner side of the fixed plate.

[0014] Preferably, the outer sides of the fixed sheet and the movable sheet are both provided with groove-shaped card slots, and the outer side of the movable sheet is fixed with a card hook that is snap-fitted and adapted to the card slot.

[0015] The beneficial effect is that: the utility model can monitor live working tools of different sizes in real time by setting two groups of half core barrels with adjustable sizes as the clamping monitoring structure of live working tools, ensure that the leakage current of insulating rods and insulating ropes is continuously monitored, avoid potential dangers caused by excessive leakage current, and have a wider range of use;

[0016] At the same time, a movable clamp with a locking mechanism is provided to cooperate with a fixed clamp to clamp the live working tool, which can improve the clamping stability during the monitoring process and avoid problems such as equipment loosening and moving due to unstable clamping during the monitoring process. The movable clamp is also more convenient and quick to open and close, which improves the clamping operation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is the main structural diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the structural disassembly of the utility model;

[0021] Figure 4 It is a schematic diagram of the partial structure splitting of the utility model in another direction;

[0022] Figure 5 This is a schematic diagram of the structure disassembly of the fixing clamp of the utility model;

[0023] Figure 6 It is a schematic diagram of the structural disassembly of the locking mechanism of the utility model;

[0024] Figure 7 It is a schematic diagram of the structural disassembly of a half core tube of the utility model.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Main unit; 2. Fixed clamp; 201. Front clamp body; 201a. Locking cylinder; 201b. Limit block; 202. Rear clamp body; 202a. Guide cylinder; 203. Rotating shaft; 3. Movable clamp; 301. Main clamp body; 301a. Clamping plate; 302. Auxiliary clamp body; 302a. Pressing groove; 303. Rotating ear; 304. Locking claw; 4. Half core cylinder; 401. Outer cover; 401a. Stop edge; 402. Support bar; 403. Fixed sheet; 404. Movable sheet; 405. Clamping groove; 406. Hook; 5. Locking mechanism; 501. Locking shaft; 502. Block cover; 502a. Operating sheet; 503. Locking plate; 504. Mounting rod; 505. Pressure cover; 506. Spring; 507. Mounting screw. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0028] See also Figure 1-Figure 7 As shown, the utility model provides an insulating rod and rope leakage current monitoring device, comprising a main unit 1, a fixed clamp 2 and a movable clamp 3, wherein the fixed clamp 2 is arranged on the top of the main unit 1, and the movable clamp 3 is hinged on the top side of the fixed clamp 2, the fixed clamp 2 and the movable clamp 3 form an openable and closable clamping structure, and a semi-circular half core barrel 4 is arranged between the fixed clamp 2 and the movable clamp 3, and the two groups of half core barrels 4 form a separable cylindrical structure, and a locking mechanism 5 for locking the movable clamp 3 is arranged on the top opening side of the fixed clamp 2, and the two groups of half core barrels 4 are respectively clamped to the two sides of the outside of the live working tool, thereby realizing the clamping monitoring of live working tools such as insulating rods and ropes;

[0029] The fixed clamp 2 includes a front clamp body 201 and a rear clamp body 202 which are tightly pressed together and fixed to the top side of the main body 1. The front clamp body 201 and the rear clamp body 202 are fixed with a rotating shaft 203 supporting the rotation of the movable clamp 3 on the side away from the locking mechanism 5. The front clamp body 201 is provided with a locking cylinder 201a on the side away from the rotating shaft 203, and the rear clamp body 202 is provided with a guide cylinder 202a corresponding to the locking cylinder 201a. The movable clamp 3 includes a main clamp body 301 and an auxiliary clamp body 302 which are tightly pressed together. The bottom sides of the main clamp body 301 and the auxiliary clamp body 302 are fixed with rotating ears 303 which rotate to cooperate with the rotating shaft 203. The rotating shaft 203 and the rotating ears 303 constitute a rotating seat for the fixed clamp 2 to support the rotation of the movable clamp 3.

[0030] As an optional embodiment, the locking cylinder 201a is a hollow cylindrical structure, and four groups of limit blocks 201b are arranged around the rear end of the locking cylinder 201a, and a cross-shaped locking groove is formed between the four groups of limit blocks 201b. The locking mechanism 5 includes a locking shaft 501 that longitudinally passes through the guide cylinder 202a, and the locking shaft 501 is clearance-matched with the guide cylinder 202a. A locking plate 503 that longitudinally extends to the inner side of the limit block 201b is fixed to the front end of the locking shaft 501, and the locking plate 503 is fixed to the locking groove. The clearance fit ensures that the locking plate 503 can be locked in the locking groove after extending into the inner side of the four groups of limit blocks 201b, so that it remains in a rotationally locked state. A locking claw 304 is provided at the bottom of the main clamp body 301. The locking claw 304 is a C-shaped hook structure with an opening facing downward, and the opening width of the locking claw 304 is greater than the width of the locking plate 503. The locking claw 304 has a circular through groove inside, ensuring that the locking plate 503 can be rotated in the middle of the locking claw 304 after it is removed from the locking groove, so as to lock the locking plate 503 and the locking claw 304. When the opening is rotated to the same direction, the locking claw 304 can be upwardly disengaged from the locking plate 503 to realize the unlocking action of the movable clamp 3. The locking plate 503 extends into the locking cylinder 201a and is fixed with a longitudinally extending mounting rod 504 at one end. The front end of the mounting rod 504 is provided with a pressure cover 505. The end of the mounting rod 504 of the pressure cover 505 is threadedly matched with a mounting screw 507 for pressing the pressure cover 505 to realize the assembly connection between the pressure cover 505 and the mounting rod 504. The end surface of the pressure cover 505 is provided with a There is a spring 506 pressed against the front of the limit block 201b in the locking cylinder 201a, and a blocking cover 502 is fixed to the rear end of the lock shaft 501. The diameter of the blocking cover 502 is larger than the outer diameter of the guide cylinder 202a, and a thin sheet-shaped operating piece 502a is fixed to the rear end of the blocking cover 502. The end of the spring 506 is pressed against the limit block 201b, thereby ensuring that the lock plate 503 can be stably clamped into the lock groove between the four groups of limit blocks 201b, so as to achieve the position locking action of the lock plate 503;

[0031] A clamping plate 301a extending backward along its outer circumference is provided on the rear side of the main clamp body 301, and a crimping groove 302a for clamping and adapting the clamping plate 301a is provided on the front side of the auxiliary clamp body 302, thereby clamping and locking the main clamp body 301 and the auxiliary clamp body 302, thereby realizing the synchronous rotation and opening and closing of the movable clamp 3 as a whole.

[0032] The half core barrel 4 includes a semi-circular outer cover 401, and the outer edge of the outer cover 401 expands outward to form a retaining edge 401a for clamping and adapting the fixed clamp 2 and the movable clamp 3. A plurality of groups of support bars 402 are arranged on the inner side of the outer cover 401, and a semi-circular fixed sheet 403 is arranged on the inner side of the support bar 402. A plurality of groups of overlapping movable sheets 404 are detachably arranged on the inner side of the fixed sheet 403. Grooved slots 405 are arranged on the outer sides of the fixed sheet 403 and the movable sheet 404. A hook 406 for clamping and adapting the slot 405 is fixed on the outer side of the movable sheet 404. A plurality of groups of overlapping movable sheets 404 with gradually increasing diameters are arranged so that the inner movable sheet 404 can be removed according to the outer diameter of the live working tool to be clamped, until the innermost movable sheet 404 can be clamped and adapted to the outer diameter of the live working tool to be monitored, so as to realize the corresponding clamping and use of tools of different sizes.

[0033] The locking plate 503 of the movable clamp 3 is unlocked by the locking plate 503, and the locking plate 503 of the movable clamp 3 is unlocked by the locking plate 503. The clamping monitoring channel between the two groups of half-core barrels 4 is exposed, and the live working tool to be monitored is clamped between the two groups of half-core barrels 4, and the movable clamp 3 is reset. At the same time, the operating piece 502a is rotated and released to lock the locking plate 503 and the locking claw 304, and then the locking plate 503 is again inserted into the cross-shaped locking groove between the multiple groups of limit blocks 201b to achieve the locking process of the movable clamp 3 and the fixed clamp 2; when it is necessary to adjust the diameter of the internal clamping monitoring channel of the half-core barrel 4 according to the diameter of different live working tools, the movable clamp 3 is rotated upward to open it, and according to the outer diameter of the required clamping tool, the inner movable piece 404 is removed until the movable piece 404 with the corresponding inner diameter is adapted to the required live working tool, so as to achieve the diameter adjustment process of the clamping channel;

[0034] By setting two groups of half core barrels 4 with adjustable sizes as the clamping monitoring structure for live working tools, live working tools of different sizes can be monitored in real time, ensuring that the leakage current of the insulating rod and the insulating rope is continuously monitored, avoiding potential dangers caused by excessive leakage current, and having a wider range of use;

[0035] At the same time, a movable clamp 3 with a locking mechanism 5 is provided to cooperate with the fixed clamp 2 to clamp the live working tool, which can improve the clamping stability during the monitoring process and avoid problems such as equipment loosening and moving due to unstable clamping during the monitoring process. The movable clamp 3 is also more convenient and quick to open and close, thereby improving the clamping operation speed.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An insulating rod and rope leakage current monitoring device, characterized in that: The device comprises a main unit (1), a fixed clamp (2) and a movable clamp (3), wherein the fixed clamp (2) is arranged on the top of the main unit (1), the movable clamp (3) is hinged to the top side of the fixed clamp (2), and a semi-circular half core barrel (4) is arranged between the fixed clamp (2) and the movable clamp (3), and two groups of the half core barrels (4) form a separable cylindrical structure, and a locking mechanism (5) for locking the movable clamp (3) is arranged on the top opening side of the fixed clamp (2); The fixed clamp (2) comprises a front clamp body (201) and a rear clamp body (202) which are closely attached to each other and fixed to the top side of the main body (1); a rotating shaft (203) supporting the rotation of the movable clamp (3) is fixed to the side of the front clamp body (201) and the rear clamp body (202) away from the locking mechanism (5); a locking cylinder (201a) is provided on the side of the front clamp body (201) away from the rotating shaft (203); a guide cylinder (202a) is provided on the rear clamp body (202) corresponding to the locking cylinder (201a); the movable clamp (3) comprises a main clamp body (301) and a secondary clamp body (302) which are closely attached to each other; a rotating ear (303) which is rotationally matched with the rotating shaft (203) is fixed to the bottom side of the main clamp body (301) and the secondary clamp body (302).

2. The insulating rod and rope leakage current monitoring device according to claim 1, characterized in that: The locking cylinder (201a) is a hollow cylindrical structure, and four groups of limit blocks (201b) are arranged around the rear end of the locking cylinder (201a), with cross-shaped locking grooves formed between the four groups of limit blocks (201b).

3. The insulating rod and rope leakage current monitoring device according to claim 2, characterized in that: The locking mechanism (5) comprises a locking shaft (501) extending longitudinally through the guide cylinder (202a), the locking shaft (501) being in clearance with the guide cylinder (202a), a locking plate (503) extending longitudinally to the inner side of the limit block (201b) being fixed to the front end of the locking shaft (501), the locking plate (503) being in clearance with the locking groove, and a locking claw (304) being provided at the bottom of the main clamp body (301), the locking claw (304) being a C-shaped hook structure with an opening facing downward, and the opening width of the locking claw (304) being greater than the width of the locking plate (503).

4. The insulating rod and rope leakage current monitoring device according to claim 3, characterized in that: The locking plate (503) extends into the locking cylinder (201a) and is fixed with a longitudinally extending mounting rod (504) at one end thereof; a pressure cover (505) is provided at the front end of the mounting rod (504); a mounting screw (507) for pressing the pressure cover (505) is threadedly engaged at the end of the mounting rod (504) of the pressure cover (505); and a spring (506) is provided on the end surface of the pressure cover (505) for pressing against the front face of the limit block (201b) in the locking cylinder (201a).

5. The insulating rod and rope leakage current monitoring device according to claim 4, characterized in that: A blocking cover (502) is fixed to the rear end of the lock shaft (501); the diameter of the blocking cover (502) is larger than the outer diameter of the guide cylinder (202a); and a thin sheet-shaped operating sheet (502a) is fixed to the rear end of the blocking cover (502).

6. The insulating rod and rope leakage current monitoring device according to claim 1, characterized in that: The rear side of the main clamp body (301) is provided with a clamping plate (301a) extending backwards along its outer circumferential direction, and the front side of the auxiliary clamp body (302) is provided with a crimping groove (302a) for clamping and adapting the clamping plate (301a).

7. The insulating rod and rope leakage current monitoring device according to claim 1, characterized in that: The half core tube (4) comprises a semi-circular outer cover (401), the outer edge of the outer cover (401) expands outward to form a retaining edge (401a) that is snap-fitted to the fixed clamp (2) and the movable clamp (3), a plurality of groups of support bars (402) are arranged on the inner side of the outer cover (401), a semi-circular fixing sheet (403) is arranged on the inner side of the support bar (402), and a plurality of groups of overlapping movable sheets (404) are detachably arranged on the inner side of the fixing sheet (403).

8. The insulating rod and rope leakage current monitoring device according to claim 7, characterized in that: The fixed sheet (403) and the movable sheet (404) are both provided with groove-shaped card slots (405) on their outer sides, and a card hook (406) that is engaged and adapted to the card slot (405) is fixed on the outer side of the movable sheet (404).

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