A safety performance detection device for electric power distribution cabinet

Abstract

The present invention relates to the technical field of electrical performance detection of power distribution cabinets, and in particular to a safety performance detection device for power distribution cabinets, comprising a branching plate, which is fixedly mounted on a side wall of a mounting plate inside a power distribution cabinet to be detected, and further comprising: a fixing plate, which is fixedly connected to the side wall of the mounting plate, and is provided with a plurality of through holes corresponding to branching holes; a clamp meter, which comprises a main unit and two symmetrically arranged clamps; when measuring any one of a plurality of parallel cables, only a T-block connected to the clamp meter needs to be slid along a T-slot at a position to be measured, so that two shielding sleeves at the position to be measured can be controlled to separate, and shielding sleeves at other positions can be automatically closed, so that when a plurality of cables are in parallel and any one of them is measured, it is beneficial to reduce the interference of the mutual inductance effect generated by the current of other cables on the measurement, thereby improving the efficiency and effect of the detection.

Description

Technical Field

[0001] The invention relates to the field of electrical performance detection of power distribution cabinets, and in particular to a safety performance detection device for power distribution cabinets. Background Art

[0002] The load detection of power distribution cabinet can detect the temperature rise, voltage and current of the distribution cabinet when it is fully loaded. The parameters can be compared with those of the experiment when it is no-load, and the actual safe working data of the distribution cabinet can be obtained. As the basis for its work, its load can be adjusted within a certain range to avoid overload, so that the transformer can operate safely and efficiently. When detecting the current of the load cable, the actual working current of the circuit is monitored to judge the operating status of the load. Generally, a clamp meter is used for detection. The clamp meter mainly includes a host and a caliper.

[0003] Most distribution cabinets are electrically connected to different loads through multiple cables. Currently, when conducting safety inspections on cable components in distribution cabinets, most staff members directly use clamp meters to inspect multiple cables one by one. The existing detection devices are too simple. When multiple cables are in parallel and one of them is measured, the currents of other cables may produce mutual inductance effects, thereby interfering with the measurement and affecting the detection effect. To this end, we propose a safety performance detection device for power distribution cabinets. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a safety performance detection device for an electric power distribution cabinet.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a safety performance detection device for a power distribution cabinet, comprising a branching board, which is fixedly mounted on the side wall of the mounting plate inside the distribution cabinet to be detected, and a plurality of branching holes are opened through the top of the branching board, and the plurality of branching holes are respectively used for the passage of cables, and also includes:

[0006] A fixing plate, fixedly connected to the side wall of the mounting plate, the fixing plate being provided with a plurality of through holes corresponding to the branching holes;

[0007] A clamp meter, comprising a main unit and two symmetrically arranged calipers, wherein the two calipers are connected to the main unit via a clamping mechanism, and a T-block is fixedly connected to the bottom of the main unit;

[0008] A plurality of pairs of shielding sleeves, each pair of shielding sleeves being symmetrically arranged on the top of the fixing plate;

[0009] A plurality of pushing components are arranged on the top of the fixing plate, and push the plurality of pairs of shielding sleeves to close respectively;

[0010] A plurality of T-slots are arranged in an equidistant array at the end of the fixing plate for inserting and moving the T-blocks. A pressing and separating mechanism is arranged inside each of the T-slots. The pressing and separating mechanism is used to drive the pushing assembly at the corresponding position to cancel the closing operation of the two shielding sleeves in advance and control the two shielding sleeves to move back and forth and separate.

[0011] A rectangular opening is provided through the top of the fixed plate and is interconnected with multiple T-slots. A sliding plate is slidably connected to the inner wall of the rectangular opening. A linkage component is provided between the sliding plate and the multiple pushing components. During the movement of the sliding plate, the linkage component is used to drive the multiple pushing components to perform a pushing operation.

[0012] Preferably, the clamping mechanism comprises:

[0013] A mounting groove is provided at the end of the mainframe, and a mounting shell is fixedly installed inside the mounting groove;

[0014] Two electric push rods are symmetrically fixedly connected to the inner wall of the mounting shell, the piston rod end of each electric push rod is fixedly connected to a connecting block, and the ends of the two connecting blocks are respectively fixedly connected to the surfaces of the two calipers.

[0015] Preferably, the clamping mechanism also includes a plurality of fixed seats, and the plurality of fixed seats are symmetrically fixedly connected to the tops of the two calipers, the surface of each fixed seat is laterally slidably connected to a T-shaped column, the end of each T-shaped column is fixedly connected to an arc plate, the surface of each arc plate is fixedly connected to a plurality of ejector pins, and a first spring is sleeved on the surface of each T-shaped column, and the two ends of each first spring are respectively fixedly connected to the adjacent fixed seat and arc plate.

[0016] Preferably, the pushing assembly comprises:

[0017] Two first mounting openings are both opened through the top of the fixing plate and are symmetrically distributed near the corresponding through holes. Second mounting openings are opened on the side walls of the two first mounting openings. L-shaped plates are fixedly connected inside the two first mounting openings.

[0018] Two first connecting plates are respectively slidably connected to the side walls of the two L-shaped plates, the two first connecting plates are respectively fixedly connected to the bottoms of two adjacent shielding sleeves, and two second springs are fixedly connected between each of the first connecting plates and the inner wall of the L-shaped plate;

[0019] Two rotating wheels are symmetrically mounted on the side walls of the two shielding sleeves;

[0020] A first U-shaped plate is slidably connected to the bottom of the fixed plate, and two ends of the first U-shaped plate respectively pass through the two second mounting openings and extend upwards to be fixedly connected to mounting seats;

[0021] A first rotating shaft is rotatably connected to the side wall of the mounting seat, a second U-shaped plate is fixedly connected to the surface of the first rotating shaft, an inner wall of the second U-shaped plate is symmetrically provided with inclined surfaces, a first torsion spring is fixedly connected between the second U-shaped plate and the inner wall of the mounting seat, and the first torsion spring is sleeved on the surface of the first rotating shaft.

[0022] Preferably, the press-to-separate mechanism comprises:

[0023] a first gear, fixedly connected to a surface of the first rotating shaft;

[0024] A first opening is provided through the top of the mounting seat;

[0025] A first rack is vertically slidably connected to the inner wall of the first opening, and the first rack is meshed with the first gear;

[0026] A second opening is provided on the inner bottom surface of the T-shaped slot, a trapezoidal block is vertically slidably connected to the inner part of the second opening, one end of the trapezoidal block with an inclined surface extends to the inner part of the T-shaped slot, and a third connecting plate is fixedly connected to the lower end of the trapezoidal block;

[0027] A telescopic rod, fixedly connected to the side wall of the third connecting plate, wherein the telescopic end of the telescopic rod is fixedly connected to the first rack;

[0028] The separation component is arranged on the top of the fixing plate. When the T-block moves along the inside of the T-slot, the linkage separation component drives the corresponding two shielding sleeves to move in opposite directions.

[0029] Preferably, the separation component comprises:

[0030] An infrared sensor is mounted on the side wall of the T-slot;

[0031] A motor is fixedly mounted on the top of the fixing plate, wherein the output shaft of the motor passes through the fixing plate and extends upwards to be fixedly connected to a threaded rod, and a fourth gear is fixedly connected to the surface of the threaded rod;

[0032] Two fourth racks, both of which are slidably connected to the top of the fixed plate, and the ends of the two fourth racks are respectively fixedly connected with iron blocks, and both of the two fourth racks are meshed with the fourth gear;

[0033] The two electromagnets are respectively fixedly connected to the surfaces of the two shielding sleeves.

[0034] Preferably, a cleaning component is provided on the surface of each of the threaded rods, and as the threaded rod rotates, the cleaning component is linked to clean the surface of the cable to be detected;

[0035] The cleaning component includes:

[0036] A sliding rod, fixedly connected to the top of the fixed plate;

[0037] A threaded sleeve, threadedly connected to the surface of the threaded rod, a transverse plate fixedly connected to the surface of the threaded sleeve, and the transverse plate vertically slidably connected to the surface of the sliding rod;

[0038] The annular plate is located below the line dividing plate, a cleaning brush is fixedly connected to the inner ring wall of the annular plate, and the surface of the annular plate is fixedly connected to the end of the transverse plate.

[0039] Preferably, the linkage component comprises:

[0040] A rectangular plate, fixedly connected to the bottoms of the plurality of first U-shaped plates, and a second rack fixedly connected to the side wall of the rectangular plate;

[0041] A second gear is rotatably connected to the bottom of the fixed plate via a second rotating shaft, a damping pad is provided on the surface of the second rotating shaft, and the second rack is meshed with the second gear;

[0042] The second connecting plate is fixedly connected to the side wall of the sliding plate, and the end of the second connecting plate is fixedly connected to a third rack, and the third rack is meshed with the second gear.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1. When it is necessary to measure the current of the cable, the staff opens the door of the distribution cabinet and inserts the T-block connected to the clamp meter into one of the T-slots. Then the staff pushes the T-block to slide along the inside of the T-slot with the clamp meter. The set T-slot is conducive to maintaining the horizontality of the clamp meter during the movement process, which is convenient for the smooth clamping of the cable in the later stage, and avoids the situation where the staff accidentally tilts the clamp meter in their hands, affecting the clamping of the cable by the clamp, thereby affecting the test results. During the sliding process of the T-block, on the one hand, the closing operation of the two shielding sleeves at the corresponding position of the T-slot is cancelled by pressing the separation mechanism, and the two shielding sleeves at the detection position are controlled to move back to back and separate, which is conducive to making room for more space for the clamp meter to continue to move to the cable. On the one hand, the T-block moves in one direction, and on the other hand, as the T-block continues to move, the sliding plate will be pushed to move along the rectangular opening. During the movement of the sliding plate, the linkage assembly drives multiple pushing assemblies to perform pushing operations, thereby pushing each pair of shielding sleeves that have not been detected to move toward each other to achieve closure. The cables near the clamp meter are partially covered and shielded by the two closed shielding sleeves in each pair, which is beneficial to reduce the mutual inductance effect between other adjacent undetected cables that interfere with the accuracy of clamp current measurement. After the staff pushes the T-block to the specified position, the two calipers on the clamp meter are located on both sides of the cable to be detected, and then the clamping mechanism on the clamp meter is operated to control the two calipers to achieve clamping limit on the cable, thereby ensuring the detection effect of the clamp meter on the cable.

[0045] Second, by providing a press-to-separate mechanism inside each T-slot, when measuring any one of the multiple parallel cables, it is only necessary to slide the T-block connected to the clamp meter along the T-slot at the position to be measured, so that the two shielding sleeves at the position to be measured can be controlled to separate, and the shielding sleeves at other positions can be automatically closed. Therefore, when multiple cables are in parallel and any one of them is measured, it is helpful to reduce the interference of the mutual inductance effect generated by the current of other cables on the measurement, thereby improving the efficiency and effect of the detection.

[0046] 3. When the threaded rod rotates, the threaded sleeve drives the horizontal plate to move vertically along the surface of the sliding rod. During the vertical movement of the horizontal plate, the annular plate connected with the cleaning brush is driven to move vertically, so that the cleaning brush can be used to clean the surface of the cable before testing. The brushing of the cleaning brush is conducive to cleaning the dust accumulated on the surface of the cable, so as to avoid the adhesion of the dust affecting the clamping of the cable by the caliper. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the overall structure of the power distribution cabinet of the present invention.

[0048] Figure 2 It is a schematic diagram of the local structure of the power distribution cabinet of the present invention.

[0049] Figure 3This is a schematic diagram of the arrangement of multiple cables of the present invention.

[0050] Figure 4 It is a schematic diagram of the structure of the clamp meter of the present invention.

[0051] Figure 5 It is a structural schematic diagram of the sliding condition of the sliding plate and the rectangular opening of the present invention.

[0052] Figure 6 For the present invention Figure 5 Enlarged structural diagram at A in the middle.

[0053] Figure 7 It is a partial cross-sectional view of the fixing plate of the present invention.

[0054] Figure 8 For the present invention Figure 7 Enlarged structural diagram at B in the middle.

[0055] Fig. 9 It is a structural schematic diagram of the opening of the first mounting opening and the second mounting opening of the present invention.

[0056] Fig.10 For the present invention Fig. 9 Enlarged structural diagram at point C in the middle.

[0057] Fig.11 It is a structural schematic diagram of the connection between the shielding sleeve and the rotating wheel of the present invention.

[0058] In the figure: 1, distribution cabinet; 2, distribution board; 3, fixing plate; 301, rectangular opening; 4, clamp meter; 401, host; 402, caliper; 5, T-block; 6, shielding sleeve; 7, T-slot; 8, sliding plate; 9, mounting shell; 10, electric push rod; 11, first mounting opening; 12, second mounting opening; 13, L-shaped plate; 14, first connecting plate; 15, second spring; 16, fixing seat; 17, T-shaped column; 18, top pin; 19, first spring; 20, rotating wheel; 21, first U-shaped plate; 22, mounting Seat; 23. first rotating shaft; 24. second U-shaped plate; 25. inclined surface; 26. first torsion spring; 27. first gear; 28. first rack; 29. ​​trapezoidal block; 30. third connecting plate; 31. telescopic rod; 32. infrared sensor; 33. motor; 34. threaded rod; 35. fourth gear; 36. fourth rack; 37. sliding rod; 38. horizontal plate; 39. annular plate; 40. cleaning brush; 41. rectangular plate; 42. second rack; 43. second gear; 44. second connecting plate; 45. third rack. DETAILED DESCRIPTION

[0059] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0060] like Figures 1 to 11 A safety performance detection device for a power distribution cabinet shown in the figure includes a branching plate 2, which is fixedly mounted on the side wall of the mounting plate inside the distribution cabinet 1 to be detected, and a plurality of branching holes are opened through the top of the branching plate 2, and the plurality of branching holes are respectively used for passing cables, and also includes:

[0061] The fixing plate 3 is fixedly connected to the side wall of the mounting plate, and a plurality of through holes corresponding to the branching holes are formed on the fixing plate 3;

[0062] The clamp meter 4 includes a main unit 401 and two symmetrically arranged calipers 402. The two calipers 402 are connected to the main unit 401 via a clamping mechanism. A T-block 5 is fixedly connected to the bottom of the main unit 401.

[0063] A plurality of pairs of shielding sleeves 6, each pair of shielding sleeves 6 is symmetrically arranged on the top of the fixing plate 3;

[0064] A plurality of pushing components are arranged on the top of the fixing plate 3, and push the plurality of pairs of shielding sleeves 6 to close respectively;

[0065] A plurality of T-slots 7 are arranged in an equidistant array at the end of the fixing plate 3 for inserting and moving the T-block 5. A pressing and separating mechanism is arranged inside each T-slot 7. The pressing and separating mechanism is used to drive the pushing component at the corresponding position to cancel the closing operation of the two shielding sleeves 6 in advance and control the two shielding sleeves 6 to move back to back and separate.

[0066] The rectangular opening 301 is provided through the top of the fixed plate 3 and is interconnected with the multiple T-slots 7. A sliding plate 8 is slidably connected to the inner wall of the rectangular opening 301. A linkage component is provided between the sliding plate 8 and the multiple pushing components. During the movement of the sliding plate 8, the linkage component drives the multiple pushing components to perform a pushing operation. When working, the multiple branching holes and the multiple corresponding through holes are convenient for the cables electrically connected to the load inside the power distribution cabinet 1 to pass through, and the inside of the branching holes is provided with cable limit bolts. In the initial state, in order not to affect the heat dissipation of the cable, each pair of shielding sleeves 6 is in an open and closed state. When the current of the cable needs to be measured, the staff opens the power distribution cabinet 1. The cabinet door is opened, and the T-block 5 connected with the clamp meter 4 is inserted into one of the T-slots 7. Then the staff pushes the T-block 5 to slide along the inside of the T-slot 7 with the clamp meter 4. The set T-slot 7 is conducive to maintaining the horizontality of the clamp meter 4 during the movement, which is convenient for the smooth clamping of the cable in the later stage, and avoids the staff's unintentional tilt of the clamp meter 4 in their hands, which affects the clamping of the cable by the caliper 402, thereby affecting the detection result. During the sliding process of the T-block 5, on the one hand, the closing operation of the two shielding sleeves 6 at the corresponding position of the T-slot 7 is first cancelled by pressing the separation mechanism, and the two shielding sleeves 6 at the detection position are controlled to move back to back and separate, which is conducive to making room for more There is space for the clamp meter 4 to continue to move in the direction of the cable. On the other hand, as the T-block 5 continues to move, the sliding plate 8 will be pushed to move along the rectangular opening 301. During the movement of the sliding plate 8, the linkage component drives multiple pushing components to perform pushing operations, thereby pushing each pair of shielding sleeves 6 at other undetected positions to move toward each other to achieve closure. The two closed shielding sleeves 6 in each pair are used to partially cover and shield the cables near the clamp meter 4, which is beneficial to reduce the mutual inductance effect between other adjacent undetected cables that interferes with the accuracy of clamp current measurement. After the staff pushes the T-block 5 to the specified position, the two calipers 402 on the clamp meter 4 are located at the cables to be detected. On both sides, the clamping mechanism on the clamp meter 4 is then operated to control the two calipers 402 to clamp and limit the cables, thereby ensuring the detection effect of the clamp meter 4 on the cables; by providing a pressing and separating mechanism inside each T-slot 7, when measuring any one of the multiple parallel cables, it is only necessary to slide the T-block 5 connected to the clamp meter 4 along the T-slot 7 at the position to be measured, so as to control the separation of the two shielding sleeves 6 at the position to be measured, and the automatic closing of the shielding sleeves 6 at other positions. Therefore, when multiple cables are in parallel and any one of them is measured, it is beneficial to reduce the interference of the mutual inductance effect generated by the current of other cables on the measurement, thereby improving the efficiency and effect of the detection.

[0067] As an embodiment of the present invention, the clamping mechanism includes:

[0068] A mounting groove is provided at the end of the main unit 401, and a mounting shell 9 is fixedly installed inside the mounting groove;

[0069] Two electric push rods 10 are symmetrically fixedly connected to the inner wall of the mounting shell 9, and the piston rod end of each electric push rod 10 is fixedly connected to a connecting block, and the ends of the two connecting blocks are respectively fixedly connected to the surfaces of the two calipers 402; when working, after the clamp meter 4 moves to the specified position and stops, the two electric push rods 10 push the two connecting blocks to move toward each other, and at the same time drive the two calipers 402 to move toward each other to clamp the cable, which is beneficial to maintain the stability of the cable during the detection process and improve the accuracy of the detection.

[0070] As an embodiment of the present invention, the clamping mechanism also includes a plurality of fixed seats 16, which are symmetrically fixedly connected to the tops of the two calipers 402, and the surface of each fixed seat 16 is laterally slidably connected to a T-shaped column 17, and the end of each T-shaped column 17 is fixedly connected to an arc plate, and the surface of each arc plate is fixedly connected to a plurality of ejector pins 18, and the surface of each T-shaped column 17 is sleeved with a first spring 19, and the two ends of each first spring 19 are respectively fixedly connected to the adjacent fixed seat 16 and the arc plate; when working, between the two calipers In the process of 402 moving toward each other to clamp the cable, the fixed seat 16 drives the arc plate connected with the push pin 18 to move. When the push pin 18 abuts against the surface of the cable, as the two clamps 402 continue to approach each other, one side of the arc plate compresses the first spring 19, which is conducive to the clamping and limiting of the cable by multiple push pins 18, and conveniently limits the cable at the center position of the two clamps 402. At the same time, it is convenient for the two calipers 402 to clamp and limit cables of different diameters, thereby ensuring the clamping effect and further ensuring the detection efficiency.

[0071] As an embodiment of the present invention, the pushing component includes:

[0072] Two first mounting openings 11 are both opened through the top of the fixing plate 3 and are symmetrically distributed near the corresponding through holes. Second mounting openings 12 are opened on the side walls of the two first mounting openings 11. L-shaped plates 13 are fixedly connected inside the two first mounting openings 11.

[0073] Two first connecting plates 14 are slidably connected to the side walls of the two L-shaped plates 13, respectively. The two first connecting plates 14 are fixedly connected to the bottoms of two adjacent shielding sleeves 6, respectively. Two second springs 15 are fixedly connected between each first connecting plate 14 and the inner wall of the L-shaped plate 13;

[0074] Two rotating wheels 20 are symmetrically mounted on the side walls of the two shielding sleeves 6;

[0075] A first U-shaped plate 21 is slidably connected to the bottom of the fixed plate 3, and two ends of the first U-shaped plate 21 respectively pass through the two second mounting openings 12 and extend upwards to be fixedly connected to a mounting seat 22;

[0076] The first rotating shaft 23 is rotatably connected to the side wall of the mounting seat 22. The surface of the first rotating shaft 23 is fixedly connected to the second U-shaped plate 24. The inner wall of the second U-shaped plate 24 is symmetrically provided with inclined surfaces 25. A first torsion spring 26 is fixedly connected between the second U-shaped plate 24 and the inner wall of the mounting seat 22. The first torsion spring 26 is sleeved on the surface of the first rotating shaft 23. When working, the first torsion spring 26 is arranged to maintain the horizontal state of the second U-shaped plate 24. During the movement of the sliding plate 8, the linkage assembly drives multiple pushing assemblies to perform a pushing operation. The sliding plate 8 moves by pulling the first U-shaped plate 21 along the bottom of the fixed plate 3 toward one side of the cable with the help of the linkage assembly. The movement of the first U-shaped plate 21 drives the second U-shaped plate 24 and the mounting seat 22 to move synchronously. When the second U-shaped plate 24 moves, the inclined surface 25 on the inner wall thereof squeezes the rotating wheel 20 on the side wall of the shielding sleeve 6, thereby controlling the two rotating wheels 20 to drive the two shielding sleeves 6 to move toward each other to achieve closure, thereby covering the cable, reducing the interference caused by the mutual inductance effect of the current of other cables during the detection process on the measurement;

[0077] When the two shielding sleeves 6 move toward each other to close, the two first connecting plates 14 are driven to move toward each other and the second spring 15 is stretched. When the inclined surface 25 of the stretched second spring 15 on the second U-shaped plate 24 cancels the squeezing of the rotating wheel 20, the stretched second spring 15 recovers and generates a restoring pulling force, thereby driving the two shielding sleeves 6 to move back to back to recover, canceling the covering of the cable and restoring the normal heat dissipation of the cable.

[0078] As an embodiment of the present invention, the pressing and separating mechanism includes:

[0079] A first gear 27, fixedly connected to the surface of the first rotating shaft 23;

[0080] A first opening is formed through the top of the mounting seat 22;

[0081] A first rack 28 is vertically slidably connected to the inner wall of the first opening, and the first rack 28 and the first gear 27 are meshed with each other;

[0082] The second opening is formed on the inner bottom surface of the T-shaped slot 7, and a trapezoidal block 29 is vertically slidably connected to the inner part of the second opening. One end of the trapezoidal block 29 with an inclined surface extends to the inner part of the T-shaped slot 7, and a third connecting plate 30 is fixedly connected to the lower end of the trapezoidal block 29;

[0083] The telescopic rod 31 is fixedly connected to the side wall of the third connecting plate 30, and the telescopic end of the telescopic rod 31 is fixedly connected to the first rack 28;

[0084] The separation component is arranged on the top of the fixed plate 3. When the T-block 5 moves along the inside of the T-slot 7, the linkage separation component drives the corresponding two shielding sleeves 6 to move in the opposite direction. During operation, when the staff needs to detect a certain cable, they move the T-block 5 along the inside of the T-slot 7 at the corresponding position. When the T-block 5 moves, its end will push the inclined surface of the trapezoidal block 29. After the inclined surface of the trapezoidal block 29 is subjected to force, the trapezoidal block 29 drives the third connecting plate 30 to move downward. The downwardly moved third connecting plate 30 drives the first rack 28 to move downward with the help of the telescopic rod 31. Since the first rack 28 and the first gear 27 are meshed with each other, the first rack 28 drives the first gear 27 and the first rotating shaft 23 to rotate when it moves downward. The rotating first rotating shaft 23 drives the second U-shaped plate 24 on its surface to flip to a vertical state, and at the same time drives this The first torsion spring 26 at the position is twisted, and after the T-block 5 removes the obstruction to the top of the trapezoidal block 29, the twisted first torsion spring 26 will recover and drive the vertically placed second U-shaped plate 24 to reset and flip to a horizontal state. Therefore, when the linkage component pulls the first U-shaped plate 21 and the second U-shaped plate 24 to move to one side of the cable and closes the shielding sleeve 6, the second U-shaped plate 24 flipped to a vertical state will not contact the rotating wheel 20 at the detection position as the first U-shaped plate 21 moves, thereby not driving the shielding sleeve 6 at the detection position to close. The separation component is set, and when the T-block 5 moves along the inside of the T-slot 7, the linkage separation component drives the two shielding sleeves 6 at the to-be-detected position to move in opposite directions for separation, thereby providing sufficient space for the clamp meter 4 to move near the cable;

[0085] The telescopic rod 31 is arranged so that when the first U-shaped plate 21 drives the first rack 28 to move toward the cable side, the first rack 28 compresses the telescopic rod 31 to provide a clearance space for the smooth movement of the first U-shaped plate 21 .

[0086] As an embodiment of the present invention, the separation component includes:

[0087] Infrared sensor 32, mounted on the side wall of T-slot 7;

[0088] The motor 33 is fixedly mounted on the top of the fixing plate 3. The output shaft of the motor 33 passes through the fixing plate 3 and extends upwards to be fixedly connected to a threaded rod 34. The surface of the threaded rod 34 is fixedly connected to a fourth gear 35.

[0089] Two fourth racks 36, both of which are slidably connected to the top of the fixed plate 3, and the ends of the two fourth racks 36 are respectively fixedly connected with iron blocks, and both of the two fourth racks 36 are meshed with the fourth gear 35;

[0090] Two electromagnets 46 are respectively fixedly connected to the surfaces of the two shielding sleeves 6; when working, when the T-block 5 is inserted into the T-slot 7 and moves, when the infrared sensor 32 detects the T-block 5 for the first time, the two electromagnets 46 are controlled to be energized to generate suction to adsorb the two iron blocks, and the motor 33 at the detection position is controlled to start rotating for a specified number of circles, and the output shaft of the motor 33 drives the threaded rod 34 to rotate, and the rotating threaded rod 34 drives the fourth gear 35 on its surface to rotate synchronously, and the two fourth racks 36 are driven to move back and forth and separate through the rotating fourth gear 35, and with the help of the adsorption force of the electromagnet 46 on the iron block, the two shielding sleeves 6 at the detection position are synchronously driven to move back and forth and separate, and the second spring 15 is compressed, thereby providing sufficient space for the two calipers 402 on the clamp meter 4 to move to both sides of the cable, so as to facilitate the calipers 402 to detect the cable;

[0091] After the detection is completed, when the T-block 5 is taken out from the inside of the T-slot 7, the infrared sensor 32 will sense the T-block 5 for the second time, and the infrared sensor 32 will be triggered for the second time, canceling the power supply to the electromagnet 46, thereby canceling the suction force, and the compressed second spring 15 is restored to drive the two shielding sleeves 6 to be located, and at the same time, the motor 33 is controlled to rotate in the reverse direction to reset, thereby driving the threaded rod 34 to rotate in the reverse direction, linking the two shielding sleeves 6 to reset and the cleaning brush 40 to move up and reset;

[0092] It should be noted that the infrared sensor 32 at the undetected position does not sense the T-block 5, so the electromagnet 46 at the corresponding position will not be energized. Therefore, the electromagnet 46 at the undetected position will not generate suction on the iron block at the end of the fourth rack 36, making it convenient for each pair of shielding sleeves 6 at the undetected position to move toward each other and achieve closure.

[0093] As an embodiment of the present invention, a cleaning component is provided on the surface of each threaded rod 34, and as the threaded rod 34 rotates, the cleaning component is linked to clean the surface of the cable to be detected;

[0094] The cleaning components include:

[0095] A slide bar 37, fixedly connected to the top of the fixed plate 3;

[0096] A threaded sleeve, which is threadedly connected to the surface of the threaded rod 34, a horizontal plate 38 is fixedly connected to the surface of the threaded sleeve, and the horizontal plate 38 is vertically slidably connected to the surface of the sliding rod 37;

[0097] The annular plate 39 is located below the branching plate, and a cleaning brush 40 is fixedly connected to the inner ring wall of the annular plate 39, and the surface of the annular plate 39 is fixedly connected to the end of the cross plate 38; during operation, when the threaded rod 34 rotates, the cross plate 38 is driven by the threaded sleeve to move vertically along the surface of the sliding rod 37, and the cross plate 38 drives the annular plate 39 connected with the cleaning brush 40 to move vertically during the vertical movement, so that the cleaning brush 40 is used to clean the surface of the cable before detection. The brushing of the cleaning brush 40 is helpful to clean the dust accumulated on the surface of the cable, so as to prevent the adhered dust from affecting the clamping of the cable by the caliper 402.

[0098] As an embodiment of the present invention, the linkage component includes:

[0099] A rectangular plate 41 is fixedly connected to the bottoms of the plurality of first U-shaped plates 21, and a second rack 42 is fixedly connected to the side wall of the rectangular plate 41;

[0100] The second gear 43 is rotatably connected to the bottom of the fixed plate 3 via a second rotating shaft, a damping pad is provided on the surface of the second rotating shaft, and the second rack 42 and the second gear 43 are meshed with each other;

[0101] The second connecting plate 44 is fixedly connected to the side wall of the sliding plate 8, and the end of the second connecting plate 44 is fixedly connected to the third rack 45, and the third rack 45 is meshed with the second gear 43; when working, no matter along which groove wall of the T-slot 7 the T-block 5 slides, it will contact one side of the sliding plate 8, and as the T-block 5 continues to slide, the T-block 5 pushes the sliding plate 8 to move along the inner wall of the rectangular opening 301, and the moving sliding plate 8 drives the third rack 45 to move with the help of the second connecting plate 44. Since the third rack 45 and the second rack 42 are meshed with the second gear 43, during the movement of the third rack 45, with the help of the transmission of the second gear 43, the second rack 42 pulls the rectangular plate 41 to drive the multiple first U-shaped plates 21 to move, thereby facilitating the control of the multiple second U-shaped plates 24 to move to one side of the cable. After the rectangular plate 41 moves, multiple pairs of shielding sleeves 6 pairs of cables are covered, and as the T-block 5 drives the clamp meter 4 to the cable to be tested During the continuous movement of one side, the T-block 5 pushes the sliding plate 8 to drive the third rack 45 to continue to move with the help of the second connecting plate 44, and the third rack 45 is disengaged from the meshing with the second gear 43, so that the sliding plate 8 is convenient to move alone with the T-block 5. This process facilitates the T-block 5 to continue to drive the clamp meter 4 to move to one side of the cable for detection, so that the two calipers 402 move to the vicinity of the cable. After the detection of the clamp meter 4 is completed, the T-block 5 is slid out of the T-slot 7, and the staff can pull the sliding plate 8 to reset. During the resetting of the sliding plate 8, when the third rack 45 is meshed with the second gear 43 again, the transmission of the second gear 43 prompts the second rack 42 to drive the rectangular plate 41 connected with multiple first U-shaped plates 21 to reset, thereby canceling the push of the pushing component, and facilitating the closed shielding sleeve 6 to move back and reset with the help of the restoring pulling force of the stretched second spring 15, thereby canceling the shielding sleeve 6 covering the cable and avoiding affecting the heat dissipation of the cable.

[0102] The damping pad is provided to help maintain the rotated state of the second gear 43 after the third rack 45 is disengaged from the second gear 43, so that the second gear 43 will not rotate easily without external force.

[0103] Working principle of the present invention: multiple branching holes and multiple corresponding through holes are set to facilitate the passage of cables electrically connected to the load inside the power distribution cabinet 1, and cable limit bolts are set inside the branching holes. In the initial state, in order not to affect the heat dissipation of the cables, each pair of shielding sleeves 6 is in an open and closed state. When it is necessary to measure the current of the cable, the staff opens the door of the power distribution cabinet 1 and inserts the T-block 5 connected to the clamp meter 4 into one of the T-slots 7. Then the staff pushes the T-block 5 to slide along the inside of the T-slot 7 with the clamp meter 4. The set T-slot 7 is conducive to maintaining the horizontality of the clamp meter 4 during the movement process, which is convenient for the smooth clamping of the cable in the later stage, and avoids the situation where the staff accidentally tilts the clamp meter 4 in their hands, affecting the clamping of the cable by the caliper 402, thereby affecting the detection result. During the sliding process of the T-block 5, on the one hand, the closing of the two shielding sleeves 6 at the corresponding position of the T-slot 7 is first cancelled by pressing the separation mechanism. The two shielding sleeves 6 at the detection position are controlled to move back to back and separate, which is beneficial to make more space for the clamp meter 4 to continue to move in the direction of the cable. On the other hand, as the T-block 5 continues to move, the sliding plate 8 will be pushed to move along the rectangular opening 301. During the movement of the sliding plate 8, the linkage component drives multiple pushing components to perform pushing operations, thereby pushing each pair of shielding sleeves 6 at other positions that have not been detected to move toward each other to achieve closure. The two closed shielding sleeves 6 in each pair are used to partially cover and shield the cables near the clamp meter 4, which is beneficial to reduce the mutual inductance effect between other adjacent undetected cables that interfere with the accuracy of clamp current measurement. After the staff pushes the T-block 5 to the specified position, the two calipers 402 on the clamp meter 4 are located on both sides of the cable to be detected, and then the clamping mechanism on the clamp meter 4 is operated to control the two calipers 402 to clamp and limit the cable, thereby ensuring the detection effect of the clamp meter 4 on the cable.

[0104] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A safety performance detection device for an electric power distribution cabinet, comprising a branching plate (2), the branching plate (2) being fixedly mounted on a side wall of a mounting plate inside a distribution cabinet (1) to be detected, a plurality of branching holes being formed through the top of the branching plate (2), the plurality of branching holes being used for passing cables respectively, and characterized in that: Also includes: A fixing plate (3) fixedly connected to the side wall of the mounting plate, the fixing plate (3) being provided with a plurality of through holes corresponding to the line dividing holes; A clamp meter (4), the clamp meter (4) comprising a main unit (401) and two symmetrically arranged calipers (402), the two calipers (402) being connected to the main unit (401) via a clamping mechanism, and a T-block (5) being fixedly connected to the bottom of the main unit (401); A plurality of pairs of shielding sleeves (6), each pair of shielding sleeves (6) being symmetrically arranged on the top of the fixing plate (3); A plurality of pushing components are arranged on the top of the fixing plate (3) and respectively push the plurality of pairs of shielding sleeves (6) to close; A plurality of T-slots (7) are arranged in an equidistant array at the end of the fixing plate (3) for inserting and moving the T-block (5); a pressing and separating mechanism is provided inside each of the T-slots (7); the pressing and separating mechanism is used to drive a pushing component at a corresponding position to cancel the closing operation of the two shielding sleeves (6) in advance, and to control the two shielding sleeves (6) to move in opposite directions and separate; A rectangular opening (301) is formed through the top of the fixed plate (3) and is in communication with the plurality of T-slots (7). A sliding plate (8) is slidably connected to the inner wall of the rectangular opening (301). A linkage assembly is provided between the sliding plate (8) and the plurality of pushing assemblies. During the movement of the sliding plate (8), the linkage assembly drives the plurality of pushing assemblies to perform a pushing operation.

2. A safety performance detection device for a power distribution cabinet according to claim 1, characterized in that: The clamping mechanism comprises: A mounting groove is provided at the end of the main unit (401), a mounting shell (9) being fixedly mounted inside the mounting groove; Two electric push rods (10) are symmetrically fixedly connected to the inner wall of the mounting shell (9), the piston rod end of each electric push rod (10) is fixedly connected to a connecting block, and the ends of the two connecting blocks are respectively fixedly connected to the surfaces of the two calipers (402).

3. A safety performance detection device for a power distribution cabinet according to claim 2, characterized in that: The clamping mechanism also includes a plurality of fixed seats (16), wherein the plurality of fixed seats (16) are symmetrically fixedly connected to the tops of the two calipers (402), the surface of each fixed seat (16) is laterally slidably connected to a T-shaped column (17), the end of each T-shaped column (17) is fixedly connected to an arc plate, the surface of each arc plate is fixedly connected to a plurality of ejector pins (18), the surface of each T-shaped column (17) is sleeved with a first spring (19), and the two ends of each first spring (19) are respectively fixedly connected to the adjacent fixed seat (16) and the arc plate.

4. A safety performance detection device for a power distribution cabinet according to claim 1, characterized in that: The pushing component comprises: Two first mounting openings (11) are both opened through the top of the fixing plate (3) and are symmetrically distributed near the corresponding through holes. Second mounting openings (12) are opened on the side walls of the two first mounting openings (11). L-shaped plates (13) are fixedly connected inside the two first mounting openings (11); Two first connecting plates (14) are respectively slidably connected to the side walls of the two L-shaped plates (13); the two first connecting plates (14) are respectively fixedly connected to the bottoms of two adjacent shielding sleeves (6); and two second springs (15) are fixedly connected between each of the first connecting plates (14) and the inner wall of the L-shaped plate (13); Two rotating wheels (20) are symmetrically mounted on the side walls of the two shielding sleeves (6); A first U-shaped plate (21) is slidably connected to the bottom of the fixed plate (3), and two ends of the first U-shaped plate (21) respectively pass through the two second mounting openings (12) and extend upwards to be fixedly connected to mounting seats (22); A first rotating shaft (23) is rotatably connected to the side wall of the mounting seat (22); a second U-shaped plate (24) is fixedly connected to the surface of the first rotating shaft (23); an inner wall of the second U-shaped plate (24) is symmetrically provided with inclined surfaces (25); a first torsion spring (26) is fixedly connected between the second U-shaped plate (24) and the inner wall of the mounting seat (22); and the first torsion spring (26) is sleeved on the surface of the first rotating shaft (23).

5. A safety performance detection device for a power distribution cabinet according to claim 4, characterized in that: The pressing and separating mechanism comprises: A first gear (27) fixedly connected to the surface of the first rotating shaft (23); A first opening extending through the top of the mounting seat (22); A first rack (28) is vertically slidably connected to the inner wall of the first opening, and the first rack (28) is meshed with the first gear (27); A second opening is formed through the inner bottom surface of the T-shaped slot (7), a trapezoidal block (29) is vertically slidably connected to the interior of the second opening, an end of the trapezoidal block (29) with an inclined surface extends into the interior of the T-shaped slot (7), and a third connecting plate (30) is fixedly connected to the lower end of the trapezoidal block (29); A telescopic rod (31) fixedly connected to a side wall of the third connecting plate (30), wherein the telescopic end of the telescopic rod (31) is fixedly connected to the first rack (28); The separation component is arranged on the top of the fixing plate (3), and when the T-shaped block (5) moves along the inside of the T-shaped slot (7), the linkage separation component drives the corresponding two shielding sleeves (6) to move in opposite directions.

6. A safety performance detection device for a power distribution cabinet according to claim 5, characterized in that: The separation component comprises: An infrared sensor (32) mounted on a side wall of the T-shaped slot (7); A motor (33) is fixedly mounted on the top of the fixing plate (3); an output shaft of the motor (33) passes through the fixing plate (3) and extends upwards to be fixedly connected to a threaded rod (34); a fourth gear (35) is fixedly connected to a surface of the threaded rod (34); Two fourth racks (36), the two fourth racks (36) are slidably connected to the top of the fixed plate (3), the ends of the two fourth racks (36) are respectively fixedly connected to iron blocks, and the two fourth racks (36) are meshed with the fourth gear (35); The two electromagnets (46) are respectively fixedly connected to the surfaces of the two shielding sleeves (6).

7. A safety performance detection device for a power distribution cabinet according to claim 6, characterized in that: A cleaning component is provided on the surface of each threaded rod (34), and as the threaded rod (34) rotates, the cleaning component is linked to clean the surface of the cable to be detected; The cleaning component includes: A sliding rod (37) fixedly connected to the top of the fixing plate (3); a threaded sleeve, threadedly connected to the surface of the threaded rod (34), a transverse plate (38) being fixedly connected to the surface of the threaded sleeve, and the transverse plate (38) being vertically slidably connected to the surface of the sliding rod (37); An annular plate (39) is located below the line dividing plate (2), a cleaning brush (40) is fixedly connected to the inner annular wall of the annular plate (39), and a surface of the annular plate (39) is fixedly connected to the end of the transverse plate (38).

8. A safety performance detection device for a power distribution cabinet according to claim 4, characterized in that: The linkage components include: A rectangular plate (41) fixedly connected to the bottoms of the plurality of first U-shaped plates (21), wherein a second rack (42) is fixedly connected to a side wall of the rectangular plate (41); A second gear (43) is rotatably connected to the bottom of the fixed plate (3) via a second rotating shaft, a damping pad is provided on the surface of the second rotating shaft, and the second rack (42) and the second gear (43) are meshed with each other; The second connecting plate (44) is fixedly connected to the side wall of the sliding plate (8), and the end of the second connecting plate (44) is fixedly connected to a third rack (45), and the third rack (45) is meshed with the second gear (43).

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