Load detection device for high-low voltage power distribution cabinet

Abstract

A high and low voltage power distribution cabinet load detection device disclosed by the present invention comprises a clamp head assembly which comprises a detection clamp head and a clamping clamp head, the detection clamp head comprises two symmetrical jaws, a device shell which comprises an upper shell and a lower shell, the upper shell and the lower shell are communicated with each other, the top end of the upper shell is provided with the rotary clamp head assembly, and the clamp head assembly is provided with the clamping clamp head. The clamping device is used for clamping a to-be-detected wire. The invention discloses a high-low voltage power distribution cabinet load detection device. The jaw at the top end of the detection clamp head is of an inverted-V-shaped structure and can be attached to a wire more tightly, and due to the fact that the top end of the detection clamp head is of a pointed-end structure, the detection clamp head can be easily moved to the position of a target wire for accurate detection, other wires do not need to be shifted manually, and the detection efficiency is improved. And the influence of poor contact on other wires caused by manual shifting is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-low voltage power distribution cabinet load detection, in particular to a high-low voltage power distribution cabinet load detection device. BACKGROUND

[0002] The high-low voltage power distribution cabinet load detection device is a detection device with powerful functions, simple operation and high safety. It can accurately measure the load of the high-low voltage power distribution cabinet, ensure the safe operation of the power system, and through load detection, it can timely find the overload in the power distribution cabinet, help identify short circuit faults, and timely take measures to improve the reliability of the power system and ensure the long-term use of the equipment. The load detection device on the market generally uses a clamp-on ammeter for detection work. The clamp-on ammeter can measure current without cutting off the circuit and is widely used in various load detection scenarios.

[0003] However, when the clamp-on ammeter is used to detect the load inside the high-low voltage power distribution cabinet, the number of wires inside the high-low voltage power distribution cabinet is large and dense, and the wires are densely arranged, which may cause the jaws of the clamp-on ammeter to be difficult to completely clamp the target wire. If the jaws cannot completely clamp the wire, it may cause inaccurate measurement or even unable to measure. At the same time, due to the close distance between the wires, the magnetic field generated by other wires may be superimposed into the magnetic field of the target wire when the target wire is detected, resulting in inaccurate measurement results, such as the detection principle disclosed in the application number 202310260669.3 a high-low voltage power distribution cabinet load detection device. SUMMARY

[0004] The purpose of the present application is to provide a high-low voltage power distribution cabinet load detection device to solve the problem of inaccurate measurement of the current detection device on the market due to the large number of wires inside the power distribution cabinet.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a high-low voltage power distribution cabinet load detection device, comprising a jaw assembly, which comprises a detection jaw and a clamping jaw, the detection jaw comprises two symmetrical jaws, and the top end of the detection jaw is arranged in a "V" shape structure, the clamping jaw is arranged outside the detection jaw, and it comprises two symmetrical clamping rings, the length of the detection jaw is greater than the length of the clamping jaw.

[0006] The device shell comprises an upper shell and a lower shell, the upper shell and the lower shell are mutually penetrated, the top of the upper shell is provided with a rotating jaw assembly for clamping the conductor to be detected, the inside of the lower shell is provided with a trigger assembly, the trigger assembly is connected with the jaw assembly, and the trigger assembly is controlled and triggered by a wrench assembly, the inside of the lower shell is further provided with a transformer secondary winding, and the lower part of the transformer secondary winding is connected with a measurement circuit through a wire to complete the measurement work, and the surface of the lower shell is provided with a display assembly for digital display work.

[0007] Preferably, the bottom of the two jaws on the detection jaw is connected with the intermediate shaft through a torsional spring, and an iron core is arranged in the inside of the jaw for guiding the magnetic field.

[0008] Preferably, the bottom of the clamping ring is connected with the driving shaft, and the lower part of the outside of the driving shaft is connected with the trigger assembly, and the clamping jaw is made of magnetic shielding material.

[0009] Preferably, the wrench assembly comprises a main wrench and an auxiliary wrench, and the main wrench and the auxiliary wrench are vertically arranged, and the main wrench and the auxiliary wrench are used for controlling the trigger assembly.

[0010] Preferably, the auxiliary wrench comprises a moving rod, a connecting seat, a rotating head, a fixing shaft and a pushing rod, the top of the moving rod is uniformly provided with engaging tooth blocks, and the two sides of the moving rod are provided with moving assemblies for sliding on the inner wall of the lower shell, the connecting seat is integrally installed at the top of the moving rod, and the top of the connecting seat is in a "U" shape structure, the fixing shaft is fixed in the middle of the connecting seat, the rotating head is rotatably arranged on the outside of the fixing shaft, and the pushing rod is integrally installed at the bottom of the rotating head.

[0011] Preferably, the sliding assembly comprises a sliding block and a return spring, the sliding block is arranged on the two sides of the moving rod, the two sides of the outside of the sliding block are connected with one side of the return spring, and the other side of the return spring is connected with the inner wall of the sliding groove of the lower shell.

[0012] Preferably, the length of the fixing shaft is greater than twice the width of the rotating head, the inside of the rotating head is provided with a circular perforation, a plurality of inclined penetrating ratchets are arranged in the circular perforation in a circular equiangular manner, the inside of the inclined penetrating ratchets is clamped with the pawl outside the fixing shaft, and the distribution length of the pawl is half of the length of the fixing shaft.

[0013] Preferably, the trigger assembly comprises a driving pulley, a connecting belt, a driven pulley, a connecting shaft and a connecting gear, the driving pulley is arranged at both sides of the top end of the driving shaft, and the connecting belt is arranged outside the driving pulley and connected with the driven pulley, the two groups of driven pulleys are connected through the connecting shaft, and the connecting gear is coaxially arranged outside the driven pulley, and the connecting gears arranged symmetrically at the bottom of the clamping jaw are engaged with each other.

[0014] Preferably, the engaging gear is coaxially connected to the middle of the connecting shaft at the bottom of one of the clamping rings, and the engaging gear is engaged with the engaging tooth block at the top end of the moving rod.

[0015] Compared with the prior art, the high-low voltage power distribution cabinet load detection device has the advantages that:

[0016] 1. The jaw at the top end of the detection jaw is arranged in an inverted V-shaped structure, which can be closely attached to the wire, and the top end of the detection jaw is arranged in a pointed structure, so that the detection jaw can be easily moved to the position of the target wire for accurate detection without manual manipulation of other wires, thereby reducing the influence of manual manipulation on the contact of other wires.

[0017] 2. The rotation of the two jaws on the detection jaw is controlled by the clamping ring, and the clamping ring is made of magnetic shielding material, which can effectively reduce the interference of external magnetic field, especially in the environment of dense wires and complex magnetic field in the power distribution cabinet, the magnetic shielding can ensure that the jaw only senses the magnetic field of the target wire, avoiding the interference of other wires.

[0018] 3. The wrench assembly comprises a main wrench and an auxiliary wrench, which are arranged on the surface and side wall of the device shell respectively, so that the wrench assembly can meet the needs of different operation angles. Users can choose the most convenient wrench for operation according to their operation habits and site conditions. In the narrow space or complex environment in the power distribution cabinet, users can flexibly choose which group of wrenches to use for control, reducing the inconvenience of operation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view structure schematic diagram of the present application;

[0020] Figure 2 It is a bottom view structure schematic diagram of the present application;

[0021] Figure 3 It is an enlarged structure schematic diagram of the trigger assembly of the present application;

[0022] Figure 4 It is a structure schematic diagram of the wrench assembly of the present application;

[0023] Figure 5 Figure 1 is a schematic diagram of the structure of the trigger assembly of the present application from the bottom view;

[0024] Figure 6 Figure 2 is a schematic diagram of the structure of the sliding assembly of the present application from the bottom view;

[0025] Figure 7 Figure 3 is a schematic diagram of the structure of the connection between the rotating head and the fixed shaft of the present application.

[0026] In the figure: 1, jaw assembly; 11, detection jaw; 111, intermediate shaft; 12, clamping jaw; 121, driving shaft; 2, upper shell; 3, lower shell; 4, wrench assembly; 41, main wrench; 42, auxiliary wrench; 421, moving rod; 422, connecting seat; 423, rotating head; 424, fixed shaft; 425, shifting rod; 5, transformer secondary winding; 6, trigger assembly; 61, driving pulley; 62, connecting belt; 63, driven pulley; 64, connecting shaft; 65, connecting gear; 7, meshing gear; 8, sliding block; 9, return spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] Please refer to Figures 1-7 The present application provides a technical solution: a high-low voltage power distribution cabinet load detection device, which comprises a jaw assembly 1, which comprises a detection jaw 11 and a clamping jaw 12. The detection jaw 11 comprises two symmetrical jaws, and the top end of the detection jaw 11 is arranged in a "V" shape. The clamping jaw 12 is arranged outside the detection jaw 11 and comprises two symmetrical clamping rings. The length of the detection jaw 11 is greater than that of the clamping jaw 12.

[0029] The device housing comprises an upper shell 2 and a lower shell 3. The upper shell 2 and the lower shell 3 are mutually penetrated. The top end of the upper shell 2 is provided with a rotating jaw assembly 1 for clamping the wire to be detected. The inside of the lower shell 3 is provided with a trigger assembly 6, which is connected between the trigger assembly 6 and the jaw assembly 1. The trigger assembly 6 is controlled and triggered by a wrench assembly 4. The inside of the lower shell 3 is also provided with a transformer secondary winding 5, which is connected to a measurement circuit through a wire below the transformer secondary winding 5 to complete the measurement work. The surface of the lower shell 3 is provided with a display assembly for digital display work.

[0030] The bottom of the two jaws of the detection clamp head 11 is connected to the intermediate shaft 111 through a torsion spring, and an iron core is arranged inside the jaw to guide the magnetic field.

[0031] The bottom of the clamping ring is connected to the driving shaft 121, and the lower part of the outside of the driving shaft 121 is connected to the trigger assembly 6, and the clamping clamp head 12 is made of magnetic shielding material.

[0032] The present application provides a kind of high-low voltage distribution cabinet load detection device, specifically, when carrying out current detection, need operator control wrench assembly 4, so that it is driven by trigger assembly 6 to make clamping clamp head 12 rotate, so that the clamping head on clamping clamp head 12 and the jaw on detection clamp head 11 are separated from each other, and since the bottom of the jaw is connected to the intermediate shaft 111 by torsion spring, when the clamping head does not clamp the jaw, the jaw will rotate outward under the action of torsion spring, so that the opening of detection clamp head 11 is opened, and the target wire is clamped, then, again control 2 clamping heads on clamping clamp head 12 rotate towards each other, so that the clamping head is extruded to the jaw again, thereby completing the clamping work of wire, when the target wire is in the middle of the two jaws, the current in the wire will generate a magnetic field around the wire when passing through, and the magnetic field is conducted to the secondary coil in the transformer secondary winding 5 through the iron core of the clamp head, then, the measurement circuit processes the current signal sensed by the transformer secondary winding 5 secondary coil, and converts it into a value that can be displayed, and finally displayed on the display screen of display assembly, to complete the current measurement work.

[0033] Further, when wrench assembly 4 controls trigger assembly 6 to work, according to Figures 2-7 As shown, the wrench assembly 4 includes a main wrench 41 and an auxiliary wrench 42, and the main wrench 41 and the auxiliary wrench 42 are vertically arranged, and the main wrench 41 and the auxiliary wrench 42 are used to control the trigger assembly 6 to work;

[0034] Specifically, when controlling the wrench assembly 4, the operator can select the main wrench 41 or the auxiliary wrench 42 to start the trigger assembly 6 according to the use requirement, and when the main wrench 41 is driven to control, only the rotation of the main wrench 41 needs to be controlled.

[0035] The auxiliary wrench 42 comprises moving rods 421, connecting seats 422, rotating heads 423, fixed shafts 424 and pushing rods 425, the top ends of the moving rods 421 are uniformly provided with engaging tooth blocks, and the two sides of the moving rods 421 are provided with moving assemblies which slide on the inner wall of the lower shell 3, the top ends of the moving rods 421 are integrally provided with the connecting seats 422, and the top ends of the connecting seats 422 are in a "U" shape structure, the middle of the connecting seat 422 is fixedly provided with the fixed shaft 424, and the outer part of the fixed shaft 424 is provided with the rotating rotating head 423, and the bottom of the rotating head 423 is integrally provided with the pushing rod 425.

[0036] The sliding assembly comprises sliding blocks 8 and return springs 9, the sliding blocks 8 are arranged on the two sides of the moving rods 421, the outer sides of the sliding blocks 8 are connected with one side of the return springs 9, and the other side of the return springs 9 is connected with the inner wall of the sliding groove in the lower shell 3.

[0037] Further, when it is necessary to control by the auxiliary wrench 42, the operator can push the moving rod 421 to drive the trigger assembly 6 to work.

[0038] The length of the fixed shaft 424 is greater than twice the width of the rotating head 423, the inner part of the rotating head 423 is provided with a circular perforation, the inner part of the circular perforation is provided with an inclined through ratchet in a circular equiangular manner, the inner part of the inclined through ratchet is clamped between the pawl outside the fixed shaft 424, and the distribution length of the pawl is half of the length of the fixed shaft 424.

[0039] When the moving rod 421 is controlled, in order to facilitate the staff to control in any complex environment, the pushing rod 425 can also be pushed to drive the rotating head 423 at the top end thereof to move outside the fixed shaft 424, when the ratchet inside the rotating head 423 and the pawl outside the fixed shaft 424 are clamped with each other, at this time, the pushing rod 425 can only rotate clockwise outward, when the rotating head 423 is rotated to the appropriate operation space, at this time, the staff only needs to push the rotating pushing rod 425 to continue to complete the purpose of pushing the moving rod 421, when the pushing rod 425 does not need to be rotated, only needs to control it to drive the rotating head 423 to move to the part of the fixed shaft 424 without the pawl, at this time, the pushing rod 425 can be rotated counterclockwise to reset;

[0040] When the moving rod 421 moves, the sliders 8 on both sides of the moving rod 421 slide in the sliding grooves, and when the moving rod 421 moves inward, the reset springs 9 on both sides of the sliders 8 are deformed. When the moving rod 421 is not forced subsequently, the reset work of the reset springs 9 can make the moving rod 421 return to the initial position.

[0041] In the present application, according to Figures 2-6 As shown, the trigger assembly 6 comprises a driving pulley 61, a connecting belt 62, a driven pulley 63, a connecting shaft 64 and a connecting gear 65. The driving pulley 61 is arranged at the top of both sides of the driving shaft 121, and the connecting belt 62 is arranged outside the driving pulley 61 and connected with the driven pulley 63. Two groups of the driven pulleys 63 are connected through the connecting shaft 64, and the connecting gears 65 are coaxially arranged outside the driven pulleys 63. The connecting gears 65 arranged symmetrically at the bottom of the clamping jaw heads 12 are engaged with each other.

[0042] The engaging gear 7 is coaxially connected to the middle of the connecting shaft 64 at the bottom of one of the clamping rings, and the engaging gear 7 is engaged with the engaging tooth block at the top of the moving rod 421.

[0043] When the operator rotates the main wrench 41, the connecting gear 65 coaxially connected with the main wrench 41 is rotated, so that the driven pulley 63 is rotated through the connecting shaft 64 when the connecting gear 65 rotates. The driving pulley 61 is rotated through the connecting belt 62. Since the driving pulley 61 is coaxially connected with the driving shaft 121, the driving shaft 121 can drive the clamping head to change the angle.

[0044] When the operator presses the moving rod 421, the engaging tooth block arranged on the moving rod 421 is engaged with the engaging gear 7, so that the engaging gear 7 can drive the connecting shaft 64 to rotate, thereby driving the driving shaft 121 to rotate.

[0045] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0046] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements for part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A load detection device for high and low voltage distribution cabinets, characterized in that, include; The clamping head assembly (1) includes a detection clamping head (11) and a clamping clamping head (12). The detection clamping head (11) includes two symmetrical jaws, and the top of the detection clamping head (11) is arranged in a "V" shape. The clamping clamping head (12) is disposed outside the detection clamping head (11) and includes two symmetrical clamping rings. The length of the detection clamping head (11) is greater than the length of the clamping clamping head (12). The device housing includes an upper housing (2) and a lower housing (3), which are interconnected. The top of the upper housing (2) is provided with a rotating clamping head assembly (1) for clamping the wire to be tested. The lower housing (3) is provided with a triggering assembly (6) inside, and the triggering assembly (6) is connected to the clamping head assembly (1). The triggering assembly (6) is controlled and triggered by a wrench assembly (4). The lower housing (3) is also provided with a secondary winding (5) of a current transformer. The lower part of the secondary winding (5) of the current transformer is connected to the measuring circuit through a wire to complete the measurement work. The surface of the lower housing (3) is provided with a display assembly for digital display.

2. The high and low voltage switchgear load detection device according to claim 1, characterized in that: The bottom of the two jaws on the detection clamp head (11) is connected to the intermediate shaft (111) by a torsion spring. An iron core is provided inside the jaws to guide the magnetic field.

3. The high and low voltage switchgear load detection device according to claim 1, characterized in that: The bottom of the clamping ring is connected to the drive shaft (121), and the lower outer part of the drive shaft (121) is connected to the trigger assembly (6). The clamping head (12) is made of magnetic shielding material.

4. The load detection device for high and low voltage distribution cabinets according to claim 1, characterized in that: The wrench assembly (4) includes a main wrench (41) and an auxiliary wrench (42), and the main wrench (41) and the auxiliary wrench (42) are arranged vertically. Both the main wrench (41) and the auxiliary wrench (42) are used to control the trigger assembly (6).

5. A load detection device for high and low voltage distribution cabinets according to claim 4, characterized in that: The auxiliary wrench (42) includes a moving rod (421), a connecting seat (422), a rotating head (423), a fixed shaft (424), and a lever (425). The top of the moving rod (421) is evenly distributed with meshing teeth, and the two sides of the moving rod (421) are provided with moving components that slide on the inner wall of the lower housing (3). The top of the moving rod (421) is integrally mounted with a connecting seat (422), and the top of the connecting seat (422) has a "U" shaped structure. The middle of the connecting seat (422) is fixed with a fixed shaft (424), and the outside of the fixed shaft (424) is provided with a rotating head (423). The bottom of the rotating head (423) is integrally mounted with a lever (425).

6. The high and low voltage switchgear load detection device according to claim 5, characterized in that: The sliding assembly includes a slider (8) and a return spring (9). The slider (8) is provided on both sides of the moving rod (421). The outer sides of the slider (8) are connected to one side of the return spring (9), and the other side of the return spring (9) is connected to the inner wall of the groove of the lower housing (3).

7. A load detection device for high and low voltage distribution cabinets according to claim 5, characterized in that: The length of the fixed shaft (424) is greater than twice the width of the rotating head (423). The rotating head (423) has a circular through hole inside. Inside the circular through hole, there are inclined through ratchet teeth arranged at equal angles. The inside of the inclined through ratchet teeth engages with the pawl outside the fixed shaft (424). The length of the pawl is half the length of the fixed shaft (424).

8. A load detection device for high and low voltage distribution cabinets according to claim 2, characterized in that: The triggering component (6) includes a driving pulley (61), a connecting belt (62), a driven pulley (63), a connecting shaft (64), and a connecting gear (65). The driving pulley (61) is provided at the top of both sides of the driving shaft (121), and a connecting belt (62) is provided outside the driving pulley (61) to connect with the driven pulley (63). The two sets of driven pulleys (63) are connected in the middle by the connecting shaft (64), and a connecting gear (65) is coaxially provided on the outside of the driven pulley (63). The connecting gears (65) at the bottom of the symmetrically arranged clamping jaws (12) mesh with each other.

9. A load detection device for high and low voltage distribution cabinets according to claim 8, characterized in that: One of the clamping rings has a meshing gear (7) coaxially connected to the middle of the connecting shaft (64) at the bottom of the clamping ring, and the bottom of the meshing gear (7) meshes with the meshing tooth block at the top of the moving rod (421).

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