An insulation detection device for underground distribution cabinet

Abstract

The present invention belongs to the technical field of distribution cabinet detection equipment and provides an underground distribution cabinet insulation detection device, comprising: a body; a bearing seat having a first position and a second position, which is slidably connected to the body; a drive assembly, which is arranged on the body and is transmission-connected to a base plate, and is used to drive the bearing seat to perform reciprocating linear motion; and a detection assembly, which is arranged on the body and comprises: a mounting seat, which is arranged on the body; and a contact group, which is arranged on the mounting seat and comprises a plurality of contact modules, the plurality of contact modules being arranged in sequence and spaced apart along the Y-axis direction, the contact modules comprising positive contacts and negative contacts that are arranged in parallel and insulated from each other, the positive contacts and negative contacts being electrically connected to the positive and negative poles of a power supply, respectively. The underground distribution cabinet insulation detection device provided by the present invention has a simple structure, a reasonable design, and is more comprehensive in detecting the cabinet plate.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinet detection equipment, and in particular to an insulation detection device for an underground power distribution cabinet. Background Art

[0002] The underground distribution cabinet is a new type of distribution cabinet. Its installation method is quite different from that of ordinary distribution cabinets. The shell is buried underground and the surface is generally covered with high-strength stainless steel cover. After installation, the cover is flush with the ground. Compared with ordinary distribution cabinets, it has the advantages of not occupying roads, not taking up space, and not affecting the flow of people and vehicles. At the same time, it integrates personalized customization such as cover filling and self-heating of the cover in extremely cold weather. It is suitable for squares, roads, exhibition halls, parks, factories, airports and other places.

[0003] During the production of distribution cabinet panels, after painting, the panels typically need to be tested for insulation. Currently, this testing method typically involves randomly selecting a few points on the panel. This method has significant limitations and is prone to missed detections.

[0004] In the prior art, an invention patent with publication number CN115184754A provides an insulation detection device for a distribution cabinet, including a base, a slide rail is provided on the base, a slide seat is slidably connected to the slide rail, a bottom plate is fixedly connected to the slide seat, a cross bar is provided at the lower end of the bottom plate, a propulsion part is provided under the bottom plate, a support seat is provided on the base, a support shaft is rotatably connected to the support seat, a detection part is provided on the support shaft, and a driving part is provided on the support seat.

[0005] During the test, each time the propulsion unit drives the cabinet panel forward, the driving unit drives a detection unit to rotate to a position corresponding to the cabinet panel, and the multiple contacts of the detection unit perform insulation testing on the cabinet panel. This insulation testing equipment has improved the comprehensiveness of the test to a certain extent.

[0006] However, there's a certain gap between adjacent contacts. Furthermore, after one test is complete, the propulsion unit drives the cabinet panel forward a preset distance before the next test is performed, leaving a gap between tests. Consequently, the test is still incomplete. Furthermore, because the test circuit follows a power supply-contact-cabinet panel-base-power supply path, if one side of the cabinet panel has poor insulation while the other side has good insulation, the test circuit will be disconnected, leading to test failure. Summary of the Invention

[0007] In view of the defects in the prior art, the purpose of the present invention is to provide an insulation detection device for an underground distribution cabinet to solve or alleviate the above-mentioned technical problems existing in the prior art.

[0008] In order to achieve the above object, the present invention provides an insulation detection device for an underground distribution cabinet, comprising:

[0009] body;

[0010] a bearing seat having a first position and a second position, and being slidably connected to the body so that the bearing seat can only perform reciprocating linear motion between the first position and the second position along the X-axis direction;

[0011] a driving assembly, which is disposed on the machine body and is in driving connection with the supporting base, and is used to drive the supporting base to perform reciprocating linear motion between the first position and the second position; and

[0012] A detection assembly is provided on the machine body and located above the supporting seat, and includes:

[0013] A mounting base is provided on the body; and

[0014] a contact group, which is arranged on the mounting base and includes a plurality of contact modules, wherein the plurality of contact modules are sequentially spaced along the Y-axis direction, the contact modules including a positive contact and a negative contact arranged in parallel and insulated from each other, the positive contact and the negative contact being electrically connected to the positive and negative poles of the power supply, respectively;

[0015] During detection, the driving assembly drives the supporting base to move from the first position to the second position or from the second position to the first position, so that the plurality of contact modules of the contact group move on the top surface of the target cabinet panel.

[0016] Furthermore, there are multiple contact groups, and the multiple contact groups are arranged in sequence along the X-axis direction, and the projections of the contact modules of all the contact groups on the YOZ plane do not overlap, so that any one of the contact modules can detect different positions of the cabinet panel, thereby performing uninterrupted detection of the top surface of the target cabinet panel.

[0017] Furthermore, any two adjacent projections of all the contact modules on the YOZ plane have an overlapping area, so that no detection gap exists between any two adjacent contact modules.

[0018] Furthermore, the positive contact and the negative contact include:

[0019] A mounting rod, a first end of which is fixedly connected to the mounting seat and a second end of which extends downward;

[0020] a rolling element disposed at the second end of the mounting rod and capable of rolling on the side wall of the target cabinet panel;

[0021] a first electrode block, which is slidably disposed in the mounting rod, with a side of the first electrode block facing the rolling element in contact with a side wall of the rolling element; and

[0022] A first elastic element is arranged in the mounting rod, and its two ends are respectively connected to the first electrode block and the mounting rod. In a natural state, it applies elastic force to the first electrode block so that the first electrode block tends to move toward the direction close to the rolling element.

[0023] Furthermore, the rolling element is a roller or a ball.

[0024] Furthermore, the rolling element is a roller, and a plurality of elastic electrode wires are provided on the outer peripheral wall of the roller.

[0025] Furthermore, the mounting rod comprises:

[0026] an outer rod, a first end of which is connected to the mounting seat and a second end of which extends downward;

[0027] an inner rod, a first end of which is coaxially inserted into the outer rod and is slidably connected to the outer rod so that the inner rod can only move along the axis of the outer rod; and

[0028] The second elastic element is sleeved on the inner rod, and its two ends are respectively connected to the outer rod and the inner rod. In a natural state, the second elastic element applies elastic force to the inner rod so that the inner rod tends to move downward.

[0029] Furthermore, the driving assembly includes:

[0030] A lead screw is provided on the machine body, with its axis extending along the X-axis direction, and is rotatably connected to the machine body;

[0031] a motor, which is arranged on the machine body, and whose power output shaft is drivingly connected to the power input end of the lead screw; and

[0032] The nut is sleeved on the screw and is in transmission connection with the screw so that when the screw rotates, the nut can be driven to move along the axial center line of the screw. The nut is in transmission connection with the bearing seat so that the nut can transmit power to the bearing seat to drive the bearing seat to move.

[0033] Beneficial effects of the present invention:

[0034] The insulation detection device for the buried power distribution cabinet provided by the present invention has the following characteristics: during detection, as the bearing seat moves, the contact module always contacts the top surface of the target cabinet plate, thereby improving the comprehensiveness of the detection of the cabinet plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0036] Figure 1 A three-dimensional view of an insulation detection device for an underground power distribution cabinet provided by one embodiment of the present invention;

[0037] Figure 2 for Figure 1 An enlarged view of section A is shown;

[0038] Figure 3 for Figure 1 A three-dimensional view of the detection assembly of the underground distribution cabinet insulation detection device shown;

[0039] Figure 4 for Figure 3 A partial cross-sectional view of the detection assembly shown;

[0040] Figure 5 for Figure 3 A perspective view of the positive and negative contacts of the detection assembly shown;

[0041] Figure 6 for Figure 1 A three-dimensional view of the detection assembly of the underground distribution cabinet insulation detection device shown;

[0042] Figure 7 for Figure 6 A partial cross-sectional view of the detection assembly shown;

[0043] Figure 8 for Figure 6 A perspective view of the positive and negative contacts of the detection assembly shown;

[0044] Figure 9 for Figure 1 A three-dimensional view of a mounting base of a detection assembly of an underground distribution cabinet insulation detection device is shown;

[0045] Figure 10 for Figure 9 An enlarged view of portion B is shown;

[0046] Figure 11 for Figure 1 The figure shows a three-dimensional view of an embodiment of a rolling element of a detection assembly of an insulation detection device for an underground distribution cabinet.

[0047] Reference numerals:

[0048] 100, machine body; 110, first guide rail; 120, second guide rail; 200, bearing seat; 300, mounting seat; 310, jack; 320, second limiting groove; 410, lead screw; 420, motor; 430, nut; 510, mounting rod; 511, outer rod; 512, inner rod; 513, second elastic element; 514, second limiting portion; 520, rolling element; 521, elastic electrode wire; 530, first electrode block; 540, first elastic element; 550, electrode rod; 551, first limiting groove; 610, second electrode block; 611, first limiting portion; 620, reel; 630, knob; 640, pull rope; 650, third elastic element; 700, driving device; 800, chassis. DETAILED DESCRIPTION

[0049] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0050] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0051] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present invention, "plurality" means more than two, unless otherwise specifically defined.

[0053] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0054] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0055] like Figures 1-11 As shown, the present invention provides an insulation detection device for an underground power distribution cabinet, comprising a body 100, a bearing seat 200, a driving assembly and a detection assembly.

[0056] The housing 100 is provided with a housing 800. The support base 200 has a first position and a second position. The support base 200 is slidably connected to the housing 100 so that the support base 200 can only perform reciprocating linear motion between the first position and the second position along the X-axis direction. Specifically, Figure 1 As shown, a first guide rail 110 is provided on the body 100 , and the supporting base 200 is connected to the body 100 via the first guide rail 110 .

[0057] The driving assembly is disposed on the machine body 100 and is in transmission connection with the supporting base 200 . The driving assembly is used to drive the supporting base 200 to perform reciprocating linear motion between the first position and the second position.

[0058] The detection assembly is arranged on the body 100 and located above the bearing seat 200 . The detection assembly includes a mounting seat 300 and a contact group.

[0059] The mounting base 300 is disposed on the housing 100 and is located above the supporting base 200. A contact group is disposed on the mounting base 300 and includes a plurality of contact modules spaced apart in sequence along the Y-axis. The contact modules include positive and negative contacts that are arranged in parallel and insulated from each other. The positive and negative contacts are electrically connected to the positive and negative poles of a power source, respectively.

[0060] During detection, the contact module collides with the top surface of the target cabinet panel, and the driving component drives the supporting seat 200 to move from the first position to the second position or from the second position to the first position, so that the multiple contact modules of the contact group move on the top surface of the target cabinet panel, thereby performing uninterrupted detection on the top surface of the target cabinet panel, thereby achieving the purpose of improving the comprehensiveness of detection.

[0061] Specifically, during testing, the A side of the cabinet panel is facing upward, and the contact module is able to contact the A side of the target cabinet panel. The driving component drives the supporting seat 200 to move from the first position to the second position or from the second position to the first position, so that the contact module slides on the A side of the target cabinet panel. When the insulation of the cabinet panel is good, the positive contact and the negative contact are disconnected, so that the detection circuit is disconnected; when there is a leakage at the corresponding part of the contact module, the positive contact and the negative contact can be connected, and the detection circuit is connected, thereby achieving the purpose of detecting the insulation of the cabinet panel.

[0062] The detection method for the B side of the cabinet board is the same as the detection method for the A side of the cabinet board, so I will not go into details here.

[0063] In the underground distribution cabinet insulation detection device provided by the present invention, during detection, as the support base 200 moves, the contact module always contacts the top surface of the target cabinet panel, thereby providing a more comprehensive detection of the cabinet panel.

[0064] like Figure 1 As shown, preferably, the mounting base 300 is slidably connected to the body 100, and the mounting base 300 can reciprocate between the third position and the fourth position along the Z-axis direction. Specifically, a second guide rail 120 is provided on the body 100, and the mounting base 300 is slidably connected to the body 100 via the second guide rail 120.

[0065] The body 100 is provided with a driving device 700, which is in transmission connection with the mounting base 300 to drive the mounting base 300 to perform reciprocating linear motion between the third position and the fourth position. In the working state, the driving device 700 drives the mounting base 300 to move, thereby changing the position of the mounting base 300 in the Z-axis direction, thereby achieving the purpose of detecting cabinet panels of different thicknesses. Figure 1 As shown, the driving device 700 is an electric push rod.

[0066] like Figure 1 As shown, the driving assembly includes a screw 410 , a motor 420 and a nut 430 .

[0067] Among them, the lead screw 410 is arranged on the body 100, the axis of the lead screw 410 extends along the X-axis direction, and the lead screw 410 is rotatably connected to the body 100. The motor 420 is arranged on the body 100, the motor 420 is fixedly connected to the body 100, and the power output shaft of the motor 420 is transmission-connected to the power input end of the lead screw 410. The nut 430 is sleeved on the lead screw 410. The nut 430 is transmission-connected to the lead screw 410 so that when the lead screw 410 rotates, the nut 430 can be driven to move along the axis direction of the lead screw 410. The nut 430 is transmission-connected to the support seat 200 so that the nut 430 can transmit power to the support seat 200 to drive the support seat 200 to move. In this embodiment, the nut 430 is fixedly connected to the support seat 200.

[0068] During use, the motor 420 drives the lead screw 410 to rotate, causing the nut 430 to move along the axis of the lead screw 410, bringing the support base 200 with it. Specifically, when the motor 420 drives the lead screw 410 to rotate in the positive direction, the nut 430 moves in the positive direction of the X-axis, thereby moving the support base 200 from the first position to the second position; when the motor 420 drives the lead screw 410 to rotate in the reverse direction, the nut 430 moves in the negative direction of the X-axis, thereby moving the support base 200 from the second position to the first position.

[0069] In other embodiments, the drive assembly includes an electric push rod, which is fixedly mounted on the support base 200 and has a power output shaft in transmission connection with the support base 200. The electric push rod is extended and retracted to drive the support base 200 to perform reciprocating linear motion between the first position and the second position.

[0070] In other embodiments, the drive assembly includes a transmission wheel, a timing belt, and a motor.

[0071] The transmission wheels are rotatably connected to the body 100. Two transmission wheels are provided, spaced apart along the X-axis. A transmission belt is mounted on the transmission wheels and rotates with them. A motor is fixedly mounted on the body 100, with its power output shaft in transmission connection with one of the transmission wheels to drive the rotation. The support base 200 is fixedly connected to the horizontal section of the transmission belt.

[0072] During use, the motor drives the transmission wheel to rotate, thereby driving the bearing base 200 to move via the synchronous belt. Specifically, when the motor drives the transmission wheel to rotate in the forward direction, the bearing base 200 is driven by the synchronous belt to move from the first position to the second position; when the motor drives the transmission wheel to rotate in the reverse direction, the bearing base 200 is driven by the synchronous belt to move from the second position to the first position.

[0073] Since there is always a gap between the multiple contact modules of a contact group, in order to further improve the comprehensiveness of the cabinet panel detection, in this embodiment, multiple contact groups are provided, and the multiple contact groups are sequentially spaced along the X-axis direction, and the projections of the contact modules of all contact groups on the YOZ plane do not overlap, so that any contact module can detect different positions of the cabinet panel, thereby achieving the purpose of further improving its comprehensiveness of the cabinet panel detection.

[0074] Preferably, any two adjacent projections of all contact modules on the YOZ plane have an overlapping area, so that there is no detection gap between any two adjacent contact modules, thereby achieving the purpose of comprehensive detection of the top surface of the cabinet panel.

[0075] like Figure 5 、 Figure 8 As shown, the positive contact and the negative contact include a mounting rod 510 , a rolling element 520 , a first electrode block 530 and a first elastic element 540 .

[0076] The first end of the mounting rod 510 is connected to the mounting base 300, and the second end extends downward. The rolling element 520 is conductive, and a roller element is disposed at the second end of the mounting rod 510. The rolling element 520 is capable of rolling on the side wall of the target cabinet panel. The first electrode block 530 is disposed within the mounting rod 510 and is slidably connected to the mounting rod 510, so that the first electrode block 530 can only move along the axis of the mounting rod 510. The side of the first electrode block 530 facing the rolling element 520 contacts the side wall of the rolling element 520.

[0077] The first elastic element 540 is disposed within the mounting rod 510. Its two ends are connected to the first electrode block 530 and the mounting rod 510, respectively. In its natural state, the first elastic element 540 applies an elastic force to the first electrode block 530, causing the first electrode block 530 to move toward the rolling element 520, thereby ensuring that the first electrode block 530 always maintains contact with the rolling element 520. The first elastic element 540 can be any element capable of applying an elastic force to the first electrode block 530. In this embodiment, the first elastic element 540 is a spring.

[0078] During use, the rolling element 520 contacts the top surface of the target cabinet panel. As the drive assembly drives the bearing base 200 from the first position to the second position or vice versa, the rolling element 520 rolls on the top surface of the cabinet panel, thereby reducing friction between the contact module and the cabinet panel, thereby preventing scratches on the cabinet panel. When leakage occurs at the corresponding location of the contact module, the positive and negative contacts are connected by the cabinet panel, thereby completing the detection circuit and detecting the insulation of the cabinet panel.

[0079] The positive contacts and negative contacts provided in this embodiment are provided with rolling elements 520, thereby achieving the purpose of reducing the friction between the contact module and the cabinet plate, thereby achieving the purpose of avoiding scratching the cabinet plate.

[0080] Optionally, the rolling element 520 is a roller or a ball.

[0081] Since the roller is in line contact with the cabinet plate, and the ball is in point contact with the cabinet plate, preferably, the rolling element 520 is a roller to achieve the purpose of improving the comprehensiveness of the detection of the cabinet plate.

[0082] like Figure 11 As shown, in order to avoid failure to detect due to a leakage area being too small, preferably, a plurality of elastic electrode wires 521 are provided on the outer peripheral wall of the roller.

[0083] like Figure 5 、 Figure 8 As shown, the mounting rod 510 includes an outer rod 511 , an inner rod 512 and a second elastic element 513 .

[0084] The outer rod 511 has a first end connected to the mounting base 300 and a second end extending downward. The inner rod 512 is coaxially inserted into the outer rod 511. The inner rod 512 is slidably connected to the outer rod 511 so that the inner rod 512 can only move along the axis of the outer rod 511. A second elastic element 513 is sleeved on the inner rod 512. The two ends of the second elastic element 513 are respectively connected to the outer rod 511 and the inner rod 512. In the natural state, the second elastic element 513 applies an elastic force to the inner rod 512, causing the inner rod 512 to have a tendency to move downward.

[0085] like Figure 4 、 Figure 7 As shown, the positive contact and the negative contact further include an electrode rod 550 .

[0086] The electrode rod 550 is inserted into the mounting rod 510 and is slidably connected to the mounting rod 510, so that the electrode rod 550 can only move along the axis of the mounting rod 510. The first end of the electrode rod 550 is fixedly connected to the first electrode block 530, and the second end extends outside the mounting rod 510. The support base 200 is provided with corresponding sockets 310 for inserting the electrode rod 550 and the mounting rod 510. An elastic electrode module electrically connected to a power source is disposed within the sockets 310. When the electrode rod 550 is inserted into the sockets 310, the electrode rod 550 and the elastic electrode module are electrically connected.

[0087] like Figure 3 、 Figure 6 As shown, the elastic electrode module includes a second electrode block 610 and a control structure.

[0088] The second electrode block 610 is slidably connected to the mounting base 300. Two second electrode blocks 610 are provided, symmetrically arranged on either side of the insertion hole 310. A control structure is provided on the mounting base 300 and is used to control the two second electrode blocks 610 to move closer or further away from each other. When the electrode rod 550 is inserted into the insertion hole 310, the control structure controls the two second electrode blocks 610 to move closer together, causing them to contact the electrode rod 550. When the positive or negative contact needs to be replaced, the control structure controls the two second electrode blocks 610 to move away from each other, separating them from the electrode rod 550.

[0089] like Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 As shown, preferably, a first limiting groove 551 is provided on the outer side wall of the electrode rod 550, and a first limiting portion 611 is correspondingly provided on the second electrode block 610. In the working state, the first limiting groove 551 cooperates with the first limiting portion 611 to enable the positive contact or the negative contact to be firmly inserted into the socket 310.

[0090] like Figure 10 As shown, preferably, a second limiting portion 514 is provided at the first end of the mounting rod 510, and a second limiting slot 320 is correspondingly provided on the side wall of the insertion hole 310. In the working state, the second limiting slot 320 cooperates with the second limiting portion 514 to prevent the mounting rod 510 from rotating. At the same time, the positional relationship between the second limiting slot 320 and the second limiting portion 514 allows the positive or negative contact to be quickly installed in the correct orientation.

[0091] Specifically, during use, after the electrode rod 550 is inserted into the socket 310, the two second electrode blocks 610 are controlled by the control structure to approach each other, and the first limiting portion 611 is inserted into the first limiting groove 551. With the cooperation between the first limiting groove 551 and the first limiting portion 611, the positive contact or the negative contact can be firmly inserted into the corresponding socket 310.

[0092] When the positive contact or negative contact needs to be replaced, the two second electrode blocks 610 are controlled to move away from each other through the control structure, and the first limiting portion 611 and the first limiting groove 551 are controlled to move away from each other, so that the positive contact or negative contact can be pulled out, thereby facilitating the installation, disassembly, and sliding of the positive contact or negative contact.

[0093] like Figure 4 、 Figure 7 As shown, the control structure includes a drum 620 , a knob 630 , a pull cord 640 and a third elastic element 650 .

[0094] The reel 620 is disposed within the mounting base 300 and is rotatably connected to the mounting base 300. The knob 630 is disposed at the top of the mounting base 300 and is sleeved onto the power input shaft of the reel 620. Two pull ropes 640 are provided, corresponding to the two second electrode blocks 610 respectively. The first end of the pull rope 640 is connected to the reel 620, and the second end is connected to the second electrode block 610. Two third elastic elements 650 are provided, corresponding to the two second electrode blocks 610 respectively. The two ends of the third elastic elements 650 are connected to the mounting base 300 and the second electrode block 610 respectively. In a natural state, the third elastic elements 650 apply an elastic force to the second electrode block 610, causing the second electrode block 610 to tend to move toward the axis of the jack 310.

[0095] Specifically, when the positive contact or the negative contact needs to be removed, the knob 630 is turned to drive the reel 620 to reel in the pull rope 640, so that the pull rope 640 applies tension to the second electrode block 610 to move the two second electrode blocks 610 away from each other, so that the first limiting portion 611 and the first limiting groove 551 move away from each other, thereby achieving the purpose of being able to pull out the positive contact or the negative contact.

[0096] After the positive contact or the negative contact is inserted into the socket 310, the knob 630 is loosened. Under the action of the elastic force of the third elastic element 650, the two second electrode blocks 610 approach each other, so that the first limiting portion 611 is inserted into the first limiting groove 551, thereby achieving the purpose of installing the positive contact or the negative contact.

[0097] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. An insulation detection device for an underground distribution cabinet, characterized in that: include: Body (100); a bearing seat (200) having a first position and a second position, and being slidably connected to the body (100) so that the bearing seat (200) can only perform reciprocating linear motion between the first position and the second position along the X-axis direction; a driving assembly, which is arranged on the machine body (100) and is in transmission connection with the bearing seat (200), and is used to drive the bearing seat (200) to perform reciprocating linear motion between the first position and the second position; as well as A detection component is provided on the machine body (100) and is located above the supporting seat (200), and comprises: A mounting seat (300) is provided on the machine body (100); and A contact group, which is arranged on the mounting seat (300), and includes a plurality of contact modules, the plurality of contact modules are sequentially spaced along the Y-axis direction, the contact modules include positive contacts and negative contacts that are arranged in parallel and insulated from each other, the positive contacts and the negative contacts being electrically connected to the positive and negative poles of a power supply, respectively; During detection, the driving component drives the bearing seat (200) to move from the first position to the second position or from the second position to the first position, so that the plurality of contact modules of the contact group move on the top surface of the target cabinet plate, thereby performing uninterrupted detection on the top surface of the target cabinet plate; There are multiple contact groups, and the multiple contact groups are arranged in sequence along the X-axis direction, and the projections of the contact modules of all the contact groups on the YOZ plane do not overlap, so that any one of the contact modules can detect different positions of the cabinet plate; Any two adjacent projections of all the contact modules on the YOZ plane have an overlapping area, so that there is no detection gap between any two adjacent contact modules; The positive contact and the negative contact include: A mounting rod (510), a first end of which is fixedly connected to the mounting seat (300) and a second end of which extends downward; a rolling element (520) disposed at the second end of the mounting rod (510) and capable of rolling on the side wall of the target cabinet panel; a first electrode block (530) disposed within the mounting rod (510) and slidably connected to the mounting rod (510) so as to be movable only along the axis of the mounting rod (510), with the side of the first electrode block (530) facing the rolling element (520) in contact with the side wall of the rolling element (520); and A first elastic element (540) is arranged in the mounting rod (510), with its two ends respectively connected to the first electrode block (530) and the mounting rod (510), and in a natural state, applies elastic force to the first electrode block (530) so that the first electrode block (530) has a tendency to move in a direction close to the rolling element (520).

2. The underground distribution cabinet insulation detection device according to claim 1, characterized in that: The rolling element (520) is a roller or a ball.

3. The underground distribution cabinet insulation detection device according to claim 2, characterized in that: The rolling element (520) is a roller, and a plurality of elastic electrode wires (521) are provided on the outer peripheral wall of the roller.

4. The underground distribution cabinet insulation detection device according to claim 1, characterized in that: The mounting rod (510) comprises: an outer rod (511), a first end of which is connected to the mounting seat (300) and a second end of which extends downward; an inner rod (512), a first end of which is coaxially inserted into the outer rod and is slidably connected to the outer rod (511), so that the inner rod (512) can only move along the axis of the outer rod (511); and The second elastic element (513) is sleeved on the inner rod (512), and its two ends are respectively connected to the outer rod (511) and the inner rod (512). In a natural state, the second elastic element (513) applies elastic force to the inner rod (512) so that the inner rod (512) has a tendency to move downward.

5. The underground distribution cabinet insulation detection device according to any one of claims 1 to 4, characterized in that: The drive assembly includes: A lead screw (410) is provided on the machine body (100), the axis of which extends along the X-axis direction, and is rotatably connected to the machine body (100); a motor (420) disposed on the machine body (100), wherein the power output shaft thereof is in transmission connection with the power input end of the lead screw (410); and The nut (430) is sleeved on the lead screw (410) and is in transmission connection with the lead screw (410) so that when the lead screw (410) rotates, the nut (430) can be driven to move along the axis of the lead screw (410). The nut (430) is in transmission connection with the support seat (200) so that the nut (430) can transmit power to the support seat (200) to drive the support seat (200) to move.

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