Current detection device for current transformer

Abstract

The invention provides a current detection device for a current transformer, and relates to the technical field of current detection.The current detection device comprises a supporting seat component, a limiting clamping mechanism is installed in the supporting seat component, and a load testing mechanism is installed on one side of the limiting clamping mechanism. The current detection device is characterized in that two sides of the current transformer are clamped and limited through two side clamps in the limiting clamping mechanism, the current detection device is suitable for the current transformers with different widths and fixes the current transformers through a supporting spring in the clamping process, and then the current transformers are fixed through cooperation with a pressing plate in the auxiliary fixing mechanism; the stability in the follow-up current detection and load test process of the current transformer is assisted, the fixing mode is faster, a side clamping plate can be reset through a spring ejector rod while a worker fixes the current transformer conveniently, secondary current detection and load test are facilitated, and the working efficiency is improved. Therefore, the detection efficiency of the current detection device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of current detection, and in particular to a current detection device for a current transformer. Background Art

[0002] A current transformer is an instrument that converts a large primary current into a small secondary current for measurement based on the principle of electromagnetic induction. In the application of a current transformer, it is necessary to regularly detect the current and perform a current load test. After the detection and test are completed, the normal operation of the current transformer can be guaranteed.

[0003] At present, in the prior art, when current detection is performed on a current transformer, a detection pen is usually used to contact the positive and negative poles of the connection terminals of the current transformer respectively, or the connection terminals are connected to a detection device through a wire. This connection method is manually operated and the connection terminals are exposed to the outside world. On the one hand, when an overload occurs during the current test process, the current directly contacts the staff, which reduces the current detection efficiency and safety. On the other hand, the current detection will be affected by the humidity of the environment, resulting in poor current detection accuracy. Therefore, the present invention proposes a current detection device for a current transformer. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art that using a detection pen to contact the positive and negative poles of the connection terminals of the current transformer respectively or connecting to a detection device through a wire is prone to electrical accidents and reduces the detection efficiency.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a current detection device for a current transformer, comprising a support seat component, a limited clamping mechanism is installed in the support seat component, a load testing mechanism is installed on one side of the limited clamping mechanism, and the load testing mechanism can perform current load testing and current detection on the current transformer, and an auxiliary fixing mechanism is installed on one side of the support seat component. The limited clamping mechanism cooperates with the auxiliary fixing mechanism to fix the current transformer more quickly; the support seat component comprises a matching seat, and fixing rods are fixedly connected to both sides of the inner wall of the matching seat, side recessed holes are arranged on both sides of the matching seat, and side extension plates are fixedly connected to both sides of the matching seat, and the upper surface of each side extension plate is fixedly connected to a limited frame, and the two side extension plates are both located below the side recessed holes; the limited clamping mechanism comprises two assembly brackets, and the two assembly brackets are movably installed at both ends of the fixing rod, and the two fixing rods are both installed with support springs, and each support spring is fixedly connected between the two assembly brackets.

[0006] In at least some embodiments, a support seat is fixedly connected to the lower surface of the mating seat, the top and one side of the mating seat are set to be open, a mounting groove is set on one side of the mating seat, central axes are rotatably installed on both sides of the inner walls of the two assembly brackets, and a connecting sheet metal is rotatably installed on each of the central axes, and side clamps are fixedly connected to one side of the two connecting sheet metals, a pad is fixedly connected to the inner surface of the side clamp on one side, and two pads are fixedly connected to the inner surface of the side clamp on the other side.

[0007] In at least some embodiments, a driven gear is fixedly sleeved on each of the central shafts, a tooth plate is meshingly connected to one side of each of the driven gears, a lifting plate is fixedly connected to one side of each of the tooth plates, a spring top rod is fixedly connected to the lower end of each of the lifting plates, each of the spring top rods is fixedly connected to the upper surface of the assembly bracket, a No. 1 slide rail is fixedly connected to one side of each of the lifting plates, a No. 1 limit block is slidably installed in each of the No. 1 slide rails, and each of the No. 1 limit blocks is fixedly connected to the inner surface of the assembly bracket.

[0008] In at least some embodiments, the load testing mechanism includes a circuit board, which is fixedly connected to the upper surface of an assembly bracket on one side, and both sides of the upper surface of the circuit board are electrically connected to a connecting power source, two connecting power sources are electrically connected to connecting wires, and the upper ends of two connecting wires are electrically connected to connecting clamps, and one side of each connecting clamp is electrically connected to a No. 1 connecting socket.

[0009] In at least some embodiments, a mounting plate is installed on the outer side of the two No. 1 connecting seats, and No. 2 slide rails are slidably installed on both sides of the mounting plates. A limiting groove is provided on the upper end of the side clamp plate on one side, and the two No. 2 slide rails are fixedly connected to the inner walls of the limiting groove on both sides, and transmission parts are rotatably installed on the inner sides of the two connecting clamp plates, and a transmission connecting plate is rotatably installed on one end of the inner side of each of the transmission parts, and a fixed seat is rotatably installed on the lower end of the two transmission connecting plates, and the fixed seat is fixedly connected to the upper surface of the circuit board.

[0010] In at least some embodiments, one side of the two power supply connections is fixedly connected with a connecting guide plate, a resistor block is electrically connected between the two connecting guide plates, the resistor block is electrically connected to the upper surface of the circuit board, one side of the upper surface of the circuit board is provided with two slide grooves, and movable clamping plates are movably installed in the two slide grooves, one end of the two movable clamping plates is rotatably installed with a push rod, and a No. 2 connecting seat is rotatably installed on the upper end of each push rod, and the two No. 2 connecting seats are fixedly connected to the surface of one side of the mounting plate.

[0011] In at least some embodiments, the auxiliary fixing mechanism includes an L-shaped limit plate, a connecting bracket is rotatably installed at the lower end of the L-shaped limit plate, a fixing plate is fixedly connected to the lower end of the connecting bracket, the fixing plate and the connecting bracket are fixedly connected to one side surface of the mating seat, a limiting recessed hole is provided in the middle of the upper surface of the L-shaped limit plate, and a limiting screw is provided in the limiting recessed hole.

[0012] In at least some embodiments, a mounting seat is rotatably installed at the lower end of the limit screw rod, and the mounting seat is fixedly connected to the upper surface of the fixed plate. A rotating sleeve is meshingly connected to the limit screw rod, and the rotating sleeve is located above the L-shaped limit plate. Two No. 3 slide rails are fixedly connected on both sides of the upper lower surface of the L-shaped limit plate, and sliders are installed in both of the No. 3 slide rails.

[0013] In at least some embodiments, an upper transmission plate is rotatably installed at one end of the two sliding blocks, a movable plate is rotatably installed at the lower ends of the two upper transmission plates, a lower transmission plate is rotatably installed at the lower ends of the two movable plates, the lower ends of the two lower transmission plates are rotatably installed on both sides of the inner wall of the installation groove, a sliding groove is provided in the middle of the two movable plates, a No. 2 limit block is installed in the sliding groove, and the No. 2 limit block is fixedly connected to the inner surface of the L-shaped limit plate.

[0014] In at least some embodiments, the lower surfaces of the two sliders are fixedly connected with a matching plate, a threaded sleeve is provided in the middle of the matching plate, the threaded sleeve is meshingly connected with a driving screw, the driving screw is located in a limiting recessed hole, the upper end of the driving screw is fixedly connected with a knob, the lower end of the driving screw is fixedly connected with a pressure plate, and telescopic rods are fixedly connected on both sides between the pressure plate and the matching plate.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are: 1. In the present invention, the two side clamps in the limit clamping mechanism clamp and limit the two sides of the current transformer. During the clamping process, the support spring is used to make the current detection device suitable for current transformers of different widths and fix them. The pressure plate in the auxiliary fixing mechanism is then used to fix the current transformer, which assists in the stability of the subsequent current detection and load test of the current transformer. In addition, the fixing method is faster and convenient for the staff to fix the current transformer. At the same time, the side clamp can be reset by the spring push rod, which is convenient for secondary current detection and load test, thereby improving the detection efficiency of the current detection device.

[0016] 2. In the present invention, the resistor block in the load testing mechanism can not only detect the current of the current transformer but also perform a load test on it, realizing the two-in-one current detection and load test, thereby effectively judging the stability of the current transformer during operation and improving the accuracy of the current detection device. The limit clamping mechanism can also link the No. 1 connecting seat in the load testing mechanism during the clamping process of the current transformer to achieve the effect of adjusting the distance between the two No. 1 connecting seats, thereby making the connection between the No. 1 connecting seat and the connecting terminal of the current transformer more stable, and cooperating with the movable clamping plate to fix the resistor block, thereby improving the stability during the load test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention provides a schematic three-dimensional diagram of the overall structure of one side of a current transformer current detection device; Figure 2 The present invention provides a schematic three-dimensional diagram of the overall structure of the other side of a current transformer current detection device; Figure 3 The present invention provides a schematic three-dimensional diagram of the overall structure of a support base component for a current transformer current detection device; Figure 4 The present invention provides a schematic three-dimensional diagram of the overall structure of one side of an auxiliary fixing mechanism for a current transformer current detection device; Figure 5 The present invention provides a schematic three-dimensional diagram of the other side structure of an auxiliary fixing mechanism for a current transformer current detection device; Figure 6 The present invention provides a partial structural schematic stereogram of an auxiliary fixing mechanism for a current transformer current detection device; Figure 7 The present invention provides a schematic three-dimensional diagram of a combined structure of a limit clamping mechanism and a load testing mechanism for a current transformer current detection device; Figure 8 The present invention provides a partial structural schematic stereogram of a limit clamping mechanism for a current transformer current detection device; Fig. 9 The present invention provides a three-dimensional schematic diagram of another part of the structure of a limit clamping mechanism for a current transformer current detection device; Fig.10 The present invention provides a schematic three-dimensional diagram of the overall structure of a load test mechanism for a current transformer current detection device; Fig.11 The present invention provides a partial structural schematic stereogram of a load testing mechanism for a current transformer current detection device.

[0018] Legend: 100, support seat component; 200, limit clamping mechanism; 300, load test mechanism; 400, auxiliary fixing mechanism; 101, support seat; 102, matching seat; 103, side recessed hole; 104, side extension plate; 105, limit frame; 106, installation slot; 107, fixing rod; 201, assembly bracket; 202, No. 1 limit block; 203, support spring; 204, side clamping plate; 205, pad; 206, pad; 207, connecting sheet metal; 208, center axis; 209, spring push rod; 210, lifting plate; 211, tooth plate; 212, driven gear; 213, No. 1 slide rail; 301, circuit board; 302, connecting guide plate; 303, connecting power supply; 304, resistor block; 305, connecting wire; 306, connecting wire; 307, connecting sheet metal; 308, center axis; 3 ...306, connecting wire; 307, connecting sheet metal; 308, center axis; 309, spring push rod; 300, lifting plate; 301, tooth plate; 302, connecting guide plate; 303, connecting power supply; 304, resistor block; 305, connecting wire; 306, connecting wire; 307, connecting sheet metal; 306, connecting wire; 3 6. Mounting plate; 307. Connecting seat No. 1; 308. Slide rail No. 2; 309. Limiting groove; 310. Connecting splint; 311. Transmission member; 312. Transmission connecting plate; 313. Fixed seat; 314. Active clamping plate; 315. Push rod; 316. Connecting seat No. 2; 401. Fixed plate; 402. Mounting seat; 403. Connecting bracket; 404. L-shaped limiting plate; 405. Limiting block No. 2; 406. Active plate; 407. Slide groove; 408. Lower transmission plate; 409. Upper transmission plate; 410. Sliding block; 411. Slide rail No. 3; 412. Limiting concave hole; 413. Matching plate; 414. Pressing plate; 415. Driving screw; 416. Knob; 417. Limiting screw; 418. Rotating sleeve; 419. Telescopic rod; 420. Threaded sleeve. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Embodiment, according to Figure 1-Figure 11 ,like Figure 1 — Figure 2As shown, an embodiment of the present invention provides a current detection device for a current transformer, comprising a support seat component 100, wherein a limit clamping mechanism 200 is installed in the support seat component 100, wherein a load test mechanism 300 is installed on one side of the limit clamping mechanism 200, wherein the load test mechanism 300 can perform a current load test and a current detection on the current transformer, wherein an auxiliary fixing mechanism 400 is installed on one side of the support seat component 100, wherein the limit clamping mechanism 200 cooperates with the auxiliary fixing mechanism 400 to more quickly fix the current transformer, and the current transformer is inserted into the support seat component 100, and the limit clamping mechanism 200 can be used to limit and support both sides of the current transformer, and then the current transformer can be fixed in the support seat component 100 by the auxiliary fixing mechanism 400, and at the same time, the limit clamping mechanism 200 is linked to the load test mechanism 300 to contact the connection terminals of the current transformer for current detection and load testing; Figure 3 As shown, the support seat component 100 includes a matching seat 102, and the inner walls of the matching seat 102 are fixedly connected with fixing rods 107 on both sides. Side recessed holes 103 are provided on both sides of the matching seat 102. Side extension plates 104 are fixedly connected on both sides of the matching seat 102. The upper surface of each side extension plate 104 is fixedly connected to a limiting frame 105. The two side extension plates 104 are both located below the side recessed holes 103. The current transformer can be inserted into the side recessed holes 103, and the current transformer can be supported and limited by the side extension plates 104 and the limiting frame 105; as shown Figure 7 As shown, the limit clamping mechanism 200 includes two assembly brackets 201, and the two assembly brackets 201 are movably installed at both ends of the fixed rod 107. Support springs 203 are installed on the two fixed rods 107. Each support spring 203 is fixedly connected between the two assembly brackets 201. The distance between the two assembly brackets 201 can be adjusted by tensioning the support springs 203, which is suitable for current transformers of different thicknesses.

[0022] like Figure 3 and Figure 7As shown, the lower surface of the mating seat 102 is fixedly connected to the support seat 101, the top and one side of the mating seat 102 are set to be open, and a mounting groove 106 is set on one side of the mating seat 102. Center shafts 208 are rotatably installed on both sides of the inner walls of the two assembly brackets 201, and a connecting sheet metal 207 is rotatably installed on each of the center shafts 208. One side of the two connecting sheet metals 207 is fixedly connected to a side clamping plate 204, and a pad 206 is fixedly connected to the inner surface of the side clamping plate 204 on one side, and two pads 205 are fixedly connected to the inner surface of the side clamping plate 204 on the other side. When the current transformer is inserted, it can contact the side clamping plate 204, so that the side clamping plate 204 rotates around the center axis 208, and the side clamping plate 204 moves to a vertical state due to the tilt, and the pads 205 and the pads 206 on the surface of the side clamping plate 204 are clamped and limited on both sides of the current transformer.

[0023] like Figure 7 — Fig. 9 As shown, each of the central shafts 208 is fixedly sleeved with a driven gear 212, and each of the driven gears 212 is meshedly connected to a toothed plate 211 on one side, and each of the toothed plates 211 is fixedly connected to a lifting plate 210 on one side. The lifting and lowering of the lifting plate 210 is performed by the toothed plate 211 on one side thereof, and the toothed plate 211 contacts the driven gear 212 to drive the central shaft 208 to rotate, and each of the lifting plates 210 is fixedly connected to a spring push rod 209 at the lower end, and each of the spring push rods 209 is fixedly connected to the upper surface of the assembly bracket 201, and each One side of the lifting plate 210 is fixedly connected to a No. 1 slide rail 213, and a No. 1 limit block 202 is slidably installed in each of the No. 1 slide rails 213. Each of the No. 1 limit blocks 202 is fixedly connected to the inner surface of the assembly bracket 201. The spring top rod 209 will pull the lifting plate 210 down along the No. 1 limit block 202, and when the current transformer is not clamped, it will drive the side clamping plate 204 to reset and wait for the secondary fixation of the current transformer. When the side clamping plate 204 clamps the current transformer, it will drive the lifting plate 210 to rise along the No. 1 limit block 202.

[0024] like Fig.10 — Fig.11As shown, the load testing mechanism 300 includes a circuit board 301, and the circuit board 301 is fixedly connected to the upper surface of the assembly bracket 201 on one side. The two sides of the upper surface of the circuit board 301 are electrically connected to the connection power supply 303, and the two connection power supplies 303 are electrically connected to the connection wires 305. The upper ends of the two connection wires 305 are electrically connected to the connection clamping plate 310, and each of the connection clamping plates 310 is electrically connected to a No. 1 connection seat 307 on one side, and the No. 1 connection seat 307 is connected to the connection terminal of the current transformer. The current is transmitted to the connection power supply 303 through the connection clamping plate 310 and the connection wire 305 in turn. A mounting plate 306 is installed on the outer side of the seat 307, and a second slide rail 308 is slidably installed on both sides of the mounting plate 306. A limiting groove 309 is set on the upper end of the side clamping plate 204 on one side. The two second slide rails 308 are fixedly connected to the two sides of the inner wall of the limiting groove 309. A transmission member 311 is rotatably installed on the inner side of the two connecting clamping plates 310. A transmission connecting plate 312 is rotatably installed on one end of the inner side of each transmission member 311. A fixed seat 313 is rotatably installed on the lower end of the two transmission connecting plates 312. The fixed seat 313 is fixedly connected to the upper surface of the circuit board 301. When the side clamping plate 204 rotates around the central axis 208, the mounting plate 311 is adjusted by adjusting the mounting plate 311. 06 and the spacing between the circuit board 301, the two No. 1 connection seats 307 can be pushed to move horizontally on the mounting plate 306, thereby adjusting the spacing between the two No. 1 connection seats 307, which is suitable for connection terminals with different spacings. One side of the two connection power sources 303 is fixedly connected with a connection guide plate 302, and a resistor block 304 is electrically connected between the two connection guide plates 302. The resistor block 304 is electrically connected to the upper surface of the circuit board 301. When current passes through the resistor block 304, the resistor block 304 can test the load of the current transformer to determine the working stability of the transformer and ensure the normal operation of the circuit. The circuit board 30 Two slide grooves 407 are arranged on one side of the upper surface, and movable clamping plates 314 are movably installed in the two slide grooves 407. Push rods 315 are rotatably installed on one end of the two movable clamping plates 314. A No. 2 connection seat 316 is rotatably installed on the upper end of each push rod 315. The two No. 2 connection seats 316 are fixedly connected to one side surface of the mounting plate 306. When the side clamping plate 204 rotates about the central axis 208, the movable clamping plate 314 can also be pushed to move along the slide groove 407. The movable clamping plate 314 can clamp the resistor block 304 and fix it on the circuit board 301, so as to prevent disconnection during the load test and improve the stability of the load test.

[0025] like Figure 4 — Figure 6As shown, the auxiliary fixing mechanism 400 includes an L-shaped limiting plate 404, a connecting bracket 403 is rotatably installed at the lower end of the L-shaped limiting plate 404, a fixing plate 401 is fixedly connected to the lower end of the connecting bracket 403, the fixing plate 401 and the connecting bracket 403 are fixedly connected to one side surface of the matching seat 102, a limiting recessed hole 412 is arranged in the middle of the upper surface of the L-shaped limiting plate 404, a limiting screw rod 417 is arranged in the limiting recessed hole 412, a mounting seat 402 is rotatably installed at the lower end of the limiting screw rod 417, the mounting seat 402 is fixedly connected to the upper surface of the fixing plate 401, and a rotating sleeve 4 is meshed and connected on the limiting screw rod 417. 18, the rotating sleeve 418 is located above the L-shaped limit plate 404, and the rotating sleeve 418 is rotated to make it move along the limit screw rod 417. The lifting and lowering of the rotating sleeve 418 can push the L-shaped limit plate 404 to rotate around the connecting bracket 403, and the upper end of the L-shaped limit plate 404 will move to one side of the mutual inductor. Two No. 3 slide rails 411 are fixedly connected to both sides of the lower surface above the L-shaped limit plate 404, and sliders 410 are installed in the two No. 3 slide rails 411. The upper transmission plate 409 is rotatably installed at one end of the two sliders 410, and the lower ends of the two upper transmission plates 409 are rotatably installed with movable plates 406, and the lower ends of the two movable plates 406 are fixedly installed with movable plates 406. The two ends of the two lower transmission plates 408 are rotatably installed, and the lower ends of the two lower transmission plates 408 are rotatably installed on both sides of the inner wall of the installation groove 106. A slide groove 407 is set in the middle of the two movable plates 406, and a second limit block 405 is installed in the slide groove 407. The second limit block 405 is fixedly connected to the inner surface of the L-shaped limit plate 404. When the L-shaped limit plate 404 moves, the movable plate 406 is pushed to move horizontally along the second limit block 405 through the lower transmission plate 408. The movable plate 406 can push the matching plate 413 to move along the third slide rail 411 into the current transformer through the upper transmission plate 409. The lower surfaces of the two sliders 410 are fixedly connected There is a matching plate 413, a threaded sleeve 420 is arranged in the middle of the matching plate 413, the threaded sleeve 420 is meshedly connected with a driving screw 415, the driving screw 415 is located in the limiting recessed hole 412, the upper end of the driving screw 415 is fixedly connected with a knob 416, the lower end of the driving screw 415 is fixedly connected with a pressure plate 414, and telescopic rods 419 are fixedly connected on both sides between the pressure plate 414 and the matching plate 413. Rotating the knob 416 can push the pressure plate 414 to move downward through the driving screw 415, and the pressure plate 414 can fix the current transformer in the side recessed hole 103, so as to facilitate current testing and load detection of the current transformer.

[0026] The working principle of the present invention is as follows: when the current transformer needs to be tested for current, the current transformer is inserted into the side recessed hole 103 of the matching seat 102, and the current transformer contacts the side clamping plate 204 to drive it to rotate around the central axis 208, and at the same time, it can also drive the assembly bracket 201 to move horizontally along the fixed rod 107, and the side clamping plate 204 can be driven to be close to both sides of the current transformer through the support spring 203, and the current transformer is clamped and limited by the pad 205 and the pad 206 on the surface of the side clamping plate 204. When the side clamping plate 204 rotates, the transmission connecting plate 312 The limit can drive the two No. 1 connecting seats 307 to move horizontally in the mounting plate 306, thereby driving the No. 1 connecting seat 307 to be electrically connected to the connecting terminal of the current transformer, and then rotating the rotating sleeve 418 to drive it to rise and fall along the limit screw rod 417. The rotating sleeve 418 can drive the L-shaped limit plate 404 to rotate to one side of the current transformer with the connecting bracket 403. At the same time, the distance between the L-shaped limit plate 404 and the mounting groove 106 is shortened, and the matching plate 413 can be pushed to move along the No. 3 slide rail 411 through the lower transmission plate 408, the upper transmission plate 409 and the movable plate 406. The mating plate 413 moves to the inside of the current transformer, and the knob 416 is rotated to drive the driving screw 415 to drive the pressing plate 414 to descend along the telescopic rod 419. The pressing plate 414 is close to the current transformer and fixed to the upper surface of the side extension plate 104. Then, the reading device is connected to the connecting power supply 303. The reading device sequentially passes through the No. 1 connecting seat 307, the connecting clamping plate 310, the connecting wire 305 and the connecting power supply 303 to determine whether the current is connected. When the current is connected, the resistor block 304 can be inserted into the circuit board 301, and the side clamping plate 204 is rotated. By turning and cooperating with the push rod 315 and the second connecting seat 316, the resistor block 304 can be fixed on the circuit board 301 to perform a current load test. After the current detection and load test are completed, the rotating sleeve 418 is rotated to make it rise along the limit screw 417, and the L-shaped limit plate 404 and the pressure plate 414 will move outside the transformer. Then the current transformer can be pulled out, and the lifting plate 210 is driven down by the spring top rod 209. The lifting plate 210 cooperates with the driven gear 212 to drive the side clamping plate 204 to rotate and return to its position about the central axis 208, waiting for the secondary transformer current detection and load test.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A current detection device for a current transformer, comprising a support seat component (100), characterized in that: A limited position clamping mechanism (200) is installed in the support base component (100); a load testing mechanism (300) is installed on one side of the limited position clamping mechanism (200); the load testing mechanism (300) can perform current load testing and current detection on the current transformer; an auxiliary fixing mechanism (400) is installed on one side of the support base component (100); the limited position clamping mechanism (200) cooperates with the auxiliary fixing mechanism (400) to more quickly fix the current transformer; The support seat component (100) comprises a matching seat (102), fixing rods (107) are fixedly connected to the inner walls of the matching seat (102) on both sides, side recessed holes (103) are arranged on both sides of the matching seat (102), side extension plates (104) are fixedly connected to the two sides of the matching seat (102), the upper surface of each side extension plate (104) is fixedly connected to a limiting frame (105), and the two side extension plates (104) are both located below the side recessed holes (103); The position-limiting clamping mechanism (200) comprises two assembly brackets (201), the two assembly brackets (201) being movably mounted at two ends of a fixing rod (107), support springs (203) being mounted on the two fixing rods (107), and each support spring (203) being fixedly connected between the two assembly brackets (201).

2. A current detection device for a current transformer according to claim 1, characterized in that: The lower surface of the matching seat (102) is fixedly connected to a support seat (101); the top and one side of the matching seat (102) are set to be open; a mounting groove (106) is set on one side of the matching seat (102); central shafts (208) are rotatably mounted on both sides of the inner walls of the two assembly brackets (201); a connecting sheet metal (207) is rotatably mounted on each of the central shafts (208); one side of the two connecting sheet metals (207) is fixedly connected to a side clamping plate (204); the inner surface of one side of the side clamping plate (204) is fixedly connected to a pad (206); and the inner surface of the other side of the side clamping plate (204) is fixedly connected to two pads (205).

3. A current detection device for a current transformer according to claim 2, characterized in that: A driven gear (212) is fixedly sleeved on each of the central shafts (208); one side of each of the driven gears (212) is meshingly connected to a toothed plate (211); one side of each of the toothed plates (211) is fixedly connected to a lifting plate (210); a lower end of each of the lifting plates (210) is fixedly connected to a spring push rod (209); each of the spring push rods (209) is fixedly connected to the upper surface of an assembly bracket (201); one side of each of the lifting plates (210) is fixedly connected to a No. 1 slide rail (213); a No. 1 limit block (202) is slidably installed in each of the No. 1 slide rails (213); and each of the No. 1 limit blocks (202) is fixedly connected to the inner surface of the assembly bracket (201).

4. The current detection device for a current transformer according to claim 2, characterized in that: The load testing mechanism (300) comprises a circuit board (301), the circuit board (301) being fixedly connected to the upper surface of an assembly bracket (201) on one side, the upper surface of the circuit board (301) being electrically connected to connection power supplies (303) on both sides, the two connection power supplies (303) being electrically connected to connection wires (305), the upper ends of the two connection wires (305) being electrically connected to connection clamps (310), and one side of each connection clamp (310) being electrically connected to a No. 1 connection socket (307).

5. A current detection device for a current transformer according to claim 4, characterized in that: The outer sides of the two No. 1 connecting seats (307) are mounted with mounting plates (306), and No. 2 slide rails (308) are slidably mounted on both sides of the mounting plates (306). A limiting groove (309) is arranged at the upper end of one side clamping plate (204), and the two No. 2 slide rails (308) are fixedly connected to the inner walls of the limiting groove (309) on both sides. Transmission members (311) are rotatably mounted on the inner sides of the two connecting clamping plates (310), and a transmission connecting plate (312) is rotatably mounted on one end of the inner side of each transmission member (311). A fixed seat (313) is rotatably mounted on the lower ends of the two transmission connecting plates (312), and the fixed seat (313) is fixedly connected to the upper surface of the circuit board (301).

6. A current detection device for a current transformer according to claim 5, characterized in that: One side of the two connecting power sources (303) is fixedly connected to a connecting guide plate (302), a resistor block (304) is electrically connected between the two connecting guide plates (302), the resistor block (304) is electrically connected to the upper surface of the circuit board (301), one side of the upper surface of the circuit board (301) is provided with two slide grooves (407), a movable clamping plate (314) is movably installed in the two slide grooves (407), one end of the two movable clamping plates (314) is rotatably installed with a push rod (315), the upper end of each push rod (315) is rotatably installed with a No. 2 connecting seat (316), and the two No. 2 connecting seats (316) are fixedly connected to the surface of one side of the mounting plate (306).

7. The current detection device for a current transformer according to claim 1, characterized in that: The auxiliary fixing mechanism (400) comprises an L-shaped limiting plate (404), a connecting bracket (403) being rotatably mounted on the lower end of the L-shaped limiting plate (404), a fixing plate (401) being fixedly connected to the lower end of the connecting bracket (403), the fixing plate (401) and the connecting bracket (403) being fixedly connected to a side surface of the matching seat (102), a limiting recessed hole (412) being provided in the middle of the upper surface of the L-shaped limiting plate (404), and a limiting screw rod (417) being provided in the limiting recessed hole (412).

8. The current detection device for a current transformer according to claim 7, characterized in that: A mounting seat (402) is rotatably mounted on the lower end of the limiting screw rod (417), and the mounting seat (402) is fixedly connected to the upper surface of the fixed plate (401). A rotating sleeve (418) is meshingly connected to the limiting screw rod (417), and the rotating sleeve (418) is located above the L-shaped limiting plate (404). Two No. 3 slide rails (411) are fixedly connected to both sides of the upper lower surface of the L-shaped limiting plate (404), and a slider (410) is installed in each of the two No. 3 slide rails (411).

9. The current detection device for a current transformer according to claim 8, characterized in that: An upper transmission plate (409) is rotatably mounted on one end of the two sliding blocks (410), a movable plate (406) is rotatably mounted on the lower ends of the two upper transmission plates (409), a lower transmission plate (408) is rotatably mounted on the lower ends of the two movable plates (406), the lower ends of the two lower transmission plates (408) are rotatably mounted on both sides of the inner wall of the mounting groove (106), a sliding groove (407) is provided in the middle of the two movable plates (406), a second limit block (405) is installed in the sliding groove (407), and the second limit block (405) is fixedly connected to the inner surface of the L-shaped limit plate (404).

10. A current detection device for a current transformer according to claim 9, characterized in that: A matching plate (413) is fixedly connected to the lower surfaces of the two sliding blocks (410), a threaded sleeve (420) is provided in the middle of the matching plate (413), the threaded sleeve (420) is meshingly connected to a driving screw rod (415), the driving screw rod (415) is located in the limiting recessed hole (412), a knob (416) is fixedly connected to the upper end of the driving screw rod (415), a pressure plate (414) is fixedly connected to the lower end of the driving screw rod (415), and telescopic rods (419) are fixedly connected to both sides between the pressure plate (414) and the matching plate (413).

Images