Distribution transformer voltage detection device

Abstract

The utility model discloses a distribution transformer voltage detection device which comprises a connecting base, a conveyor is connected to the end face of the connecting base, a controller is connected to the side wall of the connecting base, an alternate lifting structure is connected to the end face of the conveyor, an adjustable detection structure is connected to the alternate lifting structure, and the adjustable detection structure is connected to the controller. According to the utility model, the alternating lifting structure is arranged in the voltage detection device of the distribution transformer, so that the driving motor in the alternating lifting structure is utilized to enable the detection joints to alternately lift through the transmission structure, and after detection is completed, the other group of detection joints can be driven to move downwards while one group of detection joints is lifted; therefore, the speed of connection between the detection joint and the positive and negative contacts on the end face of the distribution transformer is improved, the detection efficiency is improved, and the problem that the detection joint cannot be lifted alternately is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution transformer detection, in particular to a distribution transformer voltage detection device. Background Art

[0002] A transformer is a static electrical appliance that converts alternating current energy of one voltage level into alternating current energy of another voltage level of the same frequency through electromagnetic induction between coils and using the law of electromagnetic induction. As long as the magnetic flux changes and the number of turns of the primary and secondary windings are different, the purpose of changing the voltage can be achieved. The main components of a transformer are the iron core and the two windings wrapped around the iron core.

[0003] Currently, many transformers need to be tested for their electrical parameters before use to ensure that the voltage value can be maintained within a stable range during normal operation of the transformer, so as to ensure that the transformer and its related electrical components can work stably.

[0004] Nowadays, most transformer voltage detection devices use a single detection connector to connect to the distribution transformer to detect the voltage of the distribution transformer. As a result, after the detection, it is necessary to wait for the detection connector to be connected to the distribution transformer again before detecting the voltage of the distribution transformer. During this process, waiting for the detection connector to be connected to the distribution transformer again wastes detection time, which in turn affects the efficiency of distribution transformer detection. At the same time, most detection connectors are specifically used for one type of distribution transformer. Therefore, when used for distribution transformers of different models, it is inconvenient to adjust the distance between the detection connectors, making the device not very convenient when used. Utility Model Content

[0005] The utility model provides a distribution transformer voltage detection device to solve the above problems.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A distribution transformer voltage detection device includes a connecting base, a conveyor connected to an end surface of the connecting base, a controller connected to a side wall of the connecting base, an alternating lifting structure connected to an end surface of the conveyor, and an adjustable detection structure connected to the alternating lifting structure;

[0008] The alternating lifting structure includes a connecting frame, which is connected to the end face of the conveyor, and a fixed box is connected to the end face of the connecting frame. A driving motor is connected to the end face of the connecting frame and located on one side of the fixed box through a connecting plate. The driving end of the driving motor is connected to a rotating rod through a coupling. A rotating gear is connected to the side wall of the rotating rod and located in the inner cavity of the fixed box. A lifting rack is symmetrically connected to the side wall of the rotating gear. A fixed slide is connected to the side wall of the lifting rack. The fixed slide is connected to The limiting slide rails are symmetrically connected to the side walls of the fixed box cavity, the back of the limiting slide rails is connected to the side walls of the fixed box cavity, the limiting slide rails are connected to the limiting slide bar, one end of the lifting rack and the limiting slide bar is connected to the connecting slider, one end of the connecting slider is connected to the connecting slide, the side walls of the connecting slide are symmetrically connected to the guide slide rods, the bottom of the connecting frame and the two sides of the connecting slide are symmetrically connected to the fixed connecting plates, and the fixed connecting plates are provided with guide slots corresponding to the guide slide rods;

[0009] The adjustable detection structure includes a connecting shell, which is connected to the bottom of the connecting slide, and a rotating motor is connected to the side wall of the connecting shell through a connecting seat, and the driving end of the rotating motor is connected to a rotating rod through a coupling, one end of the rotating rod is located in the inner cavity of the connecting shell and is connected to a driven bevel gear through a driving bevel gear meshing, and the center of the driven bevel gear is located in the inner cavity of the connecting shell and is connected to a rotating screw rod, a moving slider is symmetrically connected to the side wall of the rotating screw rod, a limiting slide rod is connected on the moving slider and located on one side of the rotating screw rod, and both ends of the limiting slide rod are connected to the side walls of the inner cavity of the connecting shell, the bottom of the moving slider is connected to the connecting slider, and the bottom of the connecting slider is connected to a detection joint.

[0010] As a preferred solution of the present invention, the controller is provided with a voltage detector, a display screen, an integrated circuit board and a control switch, the conveyor is connected to the controller through a wire and the connection method is electrical connection, and the drive motor is connected to the controller through a wire and the connection method is electrical connection.

[0011] As a preferred solution of the present invention, the rotating rod is connected to the side wall of the fixed box through a bearing seat, wherein the connection between the rotating rod and the bearing seat is a rotating connection, and a sliding groove is provided on the fixed slide rail corresponding to the lifting rack, wherein the connection between the lifting rack and the sliding groove is a sliding connection.

[0012] As a preferred solution of the present invention, a sliding groove is provided on the limiting slide rail and corresponds to the limiting slide bar, wherein the connection between the limiting slide bar and the sliding groove is a sliding connection, and a connecting groove is provided on one end of the lifting rack and the limiting slide bar and corresponds to the connecting slider, wherein the matching mode between the connecting slider and the connecting groove is a clearance fit.

[0013] As a preferred solution of the present invention, the connection between the guide slide rod and the guide slide groove is a sliding connection, the guide slide groove adopts an oblique guide structure, the rotating motor is connected to the controller through a wire and the connection is an electrical connection, and the rotating rod is connected to the side wall of the connecting shell through a bearing seat, wherein the connection between the rotating rod and the bearing seat is a rotating connection.

[0014] As a preferred solution of the present invention, the rotating screw is connected to the side wall of the inner cavity of the connecting shell through a bearing seat, wherein the connection method of the rotating screw and the bearing seat is a rotating connection, the rotating screw is composed of a left-handed screw and a right-handed screw, and the connection method of the rotating screw and the movable slider is a threaded connection.

[0015] As a preferred solution of the present invention, a connecting hole is provided on the movable slider and corresponds to the limiting slide rod, wherein the connection method between the limiting slide rod and the connecting hole is a sliding connection, and a sliding groove is provided on the bottom of the connecting shell and corresponds to the connecting slider, wherein the connection method between the connecting slider and the sliding groove is a sliding connection, and the detection connector is connected to the controller through a wire, wherein the connection method between the detection connector and the controller is an electrical connection.

[0016] The utility model provides an alternate lifting structure in the voltage detection device of the distribution transformer, so that the driving motor in the alternate lifting structure can make the detection joints alternately lift and lower through the transmission structure. During the use of the voltage detection device of the distribution transformer, after the detection is completed, one group of detection joints can be lifted while the other group of detection joints is driven to move downward, thereby increasing the speed of connection between the detection joints and the positive and negative contacts on the end face of the distribution transformer, and further improving the detection efficiency, thereby solving the problem that the detection joints cannot be alternately lifted and lowered.

[0017] The utility model provides an adjustable detection structure in the voltage detection device of the distribution transformer, thereby utilizing the rotating motor in the adjustable detection structure to pass through the transmission structure to adjust the distance between the two groups of detection joints. During the use of the voltage detection device of the distribution transformer, the distance between the two groups of detection joints can be adjusted according to the distance between the positive and negative contacts on the end face of the distribution transformer, thereby meeting the connection requirements between the detection joints and the positive and negative contacts on the end face of the distribution transformer, allowing the device to be used for distribution transformers of various models, thereby solving the problem that the distance between the two groups of detection joints cannot be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the positive and equal side structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the alternating lifting structure of the present utility model;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of part of the structure;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of part of the structure;

[0022] Figure 5 This is a schematic diagram of the structure of the adjustable detection structure of the utility model;

[0023] Figure 6 For this utility model Figure 5 Schematic diagram of part of the structure.

[0024] In the figure: 1. Connecting base; 2. Conveyor; 3. Controller; 4. Alternating lifting structure; 5. Adjustable detection structure; 401. Connecting frame; 402. Fixed box; 403. Driving motor; 404. Rotating rod; 405. Rotating gear; 406. Lifting rack; 407. Fixed slide rail; 408. Limiting slide rail; 409. Limiting slide bar; 410. Connecting slider; 411. Connecting slide plate; 412. Guide slide bar; 413. Fixed connecting plate; 414. Guide slide groove; 501. Connecting shell; 502. Rotating motor; 503. Rotating rod; 504. Driving bevel gear; 505. Driven bevel gear; 506. Rotating screw; 507. Moving slider; 508. Limiting slide bar; 509. Connecting slider; 510. Detection joint. DETAILED DESCRIPTION

[0025] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] For example, please refer to Figure 1-3 , the utility model provides a technical solution:

[0027] A distribution transformer voltage detection device includes a connecting base 1, a conveyor 2 is connected to the end face of the connecting base 1, a controller 3 is connected to the side wall of the connecting base 1, an alternating lifting structure 4 is connected to the end face of the conveyor 2, and an adjustable detection structure 5 is connected to the alternating lifting structure 4; the controller 3 is provided with a voltage detector, a display screen, an integrated circuit board and a control switch; the conveyor 2 is connected to the controller 3 via a wire and the connection method is electrical connection, and the operation of the conveyor 2 is controlled by the controller 3.

[0028] In this embodiment, reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The alternating lifting structure 4 includes a connecting frame 401, which is connected to the end face of the conveyor 2. The end face of the connecting frame 401 is connected to a fixed box 402. A driving motor 403 is connected to the end face of the connecting frame 401 and is located on one side of the fixed box 402 through a connecting plate. The driving end of the driving motor 403 is connected to a rotating rod 404 through a coupling. A rotating gear 405 is connected to the side wall of the rotating rod 404 and is located in the inner cavity of the fixed box 402. A lifting rack 406 is symmetrically connected to the side wall of the rotating gear 405. A fixed slide rail 407 is connected to the side wall of the lifting rack 406. The fixed slide rail 407 is connected to the fixed box On the side wall of the inner cavity 402, the side wall of the fixed slide rail 407 is symmetrically connected to the limit slide rail 408, the back of the limit slide rail 408 is connected to the side wall of the inner cavity of the fixed box 402, and the limit slide bar 409 is connected to the limit slide rail 408. One end of the lifting rack 406 and the limit slide bar 409 is connected to a connecting slider 410, and one end of the connecting slider 410 is connected to a connecting slide 411. Guide slide rods 412 are symmetrically connected to the side wall of the connecting slide 411. Fixed connecting plates 413 are symmetrically connected to the bottom of the connecting frame 401 and located on both sides of the connecting slide 411. Guide slide grooves 414 are opened on the fixed connecting plate 413 and correspond to the guide slide rods 412.

[0029] Based on the above structure and the connection relationship of the above structure, the driving motor 403 is controlled by the controller 3. When the driving end of the driving motor 403 rotates, the rotating rod 404 and the rotating gear 405 are driven to rotate in turn. When the rotating gear 405 rotates, it drives one group of lifting racks 406 to move upward and drives another group of lifting racks 406 to move downward. When driving one group of lifting racks 406 to move upward and driving the other group of lifting racks 406 to move downward, it drives the connecting slide 411 to move toward the middle while moving downward, thereby driving the detection connector 510 to connect with the positive and negative contacts on the end face of the distribution transformer, thereby detecting the voltage of the distribution transformer; the driving motor 403 is connected to the controller 3 through a wire and the connection method is electrical connection, and the operation of the driving motor 403 is controlled by the controller 3.

[0030] The rotating rod 404 is connected to the side wall of the fixed box 402 through a bearing seat, wherein the rotating rod 404 is connected to the bearing seat in a rotating manner, and a sliding groove is provided on the fixed slide rail 407 and corresponds to the lifting rack 406, wherein the lifting rack 406 is connected to the sliding groove in a sliding manner, and a sliding groove is provided on the limiting slide rail 408 and corresponds to the limiting slide 409, wherein the limiting slide 409 is connected to the sliding groove in a sliding manner, and one end of the lifting rack 406 and the limiting slide 409 is provided with a connecting groove corresponding to the connecting slider 410, wherein the matching manner of the connecting slider 410 and the connecting groove is a clearance fit, and the connection manner of the guide slide rod 412 and the guide slide groove 414 is a sliding connection, and the guide slide groove 414 adopts an oblique guide structure, so that the alternating lifting structure 4 can operate smoothly during use.

[0031] In this embodiment, reference Figure 1 、 Figure 5 and Figure 6 The adjustable detection structure 5 includes a connecting shell 501, which is connected to the bottom of the connecting slide 411. A rotating motor 502 is connected to the side wall of the connecting shell 501 through a connecting seat. The driving end of the rotating motor 502 is connected to a rotating rod 503 through a coupling. One end of the rotating rod 503 is located in the inner cavity of the connecting shell 501 and is meshed with a driven bevel gear 505 through a driving bevel gear 504. A rotating screw rod 506 is connected to the center of the driven bevel gear 505 and is located in the inner cavity of the connecting shell 501. A moving slider 507 is symmetrically connected to the side wall of the rotating screw rod 506. A limiting slide rod 508 is connected to the moving slider 507 and located on one side of the rotating screw rod 506. Both ends of the limiting slide rod 508 are connected to the side walls of the inner cavity of the connecting shell 501. The bottom of the moving slider 507 is connected to a connecting slider 509, and the bottom of the connecting slider 509 is connected to a detection joint 510.

[0032] Based on the above structure and the connection relationship of the above structure, the rotating motor 502 is controlled by the controller 3. When the driving end of the rotating motor 502 rotates, it drives the rotating rod 503, the driving bevel gear 504, the driven bevel gear 505 and the rotating screw 506 to rotate in sequence. When the rotating screw 506 rotates, it drives the two sets of moving sliders 507 to move in relative or opposite directions on the side walls of the rotating screw 506, thereby driving the connecting slider 509 and the detection connector 510 to move in relative or opposite directions, adjusting the distance between the two sets of detection connectors 510, and then meeting the connection requirements between the detection connector 510 and the positive and negative contacts on the end face of the distribution transformer; the rotating motor 502 is connected to the controller 3 through a wire and the connection method is electrical connection. The detection connector 510 is connected to the controller 3 through a wire, wherein the connection method of the detection connector 510 and the controller 3 is electrical connection, and the operation of the rotating motor 502 and the detection connector 510 is controlled by the controller 3.

[0033] The rotating rod 503 is connected to the side wall of the connecting shell 501 through the bearing seat, wherein the connection mode of the rotating rotating rod 503 and the bearing seat is a rotating connection, and the rotating screw rod 506 is connected to the side wall of the inner cavity of the connecting shell 501 through the bearing seat, wherein the connection mode of the rotating screw rod 506 and the bearing seat is a rotating connection, and the rotating screw rod 506 is spliced ​​by a section of left-handed screw rod and a section of right-handed screw rod, and the connection mode of the rotating screw rod 506 and the movable slider 507 is a threaded connection, and a connecting hole is provided on the movable slider 507 corresponding to the limiting slide rod 508, wherein the connection mode of the limiting slide rod 508 and the connecting hole is a sliding connection, and a sliding groove is provided at the bottom of the connecting shell 501 corresponding to the connecting slider 509, wherein the connection mode of the connecting slider 509 and the sliding groove is a sliding connection, so that the adjustable detection structure 5 can operate smoothly during use.

[0034] When using the distribution transformer voltage detection device, first connect the device to the power supply so that the device is in the working state. Then, according to the distance between the positive and negative contacts on the end face of the distribution transformer, start the rotating motor 502 under the condition that the rotating motor 502 is connected to the controller 3 through a wire and the connection method is electrical connection, so that the driving end of the rotating motor 502 rotates, and the rotating rod 503 is connected to the side wall of the connecting shell 501 through the bearing seat, wherein the connection method of the rotating rod 503 and the bearing seat is a rotational connection, which drives the rotating rod 503 to rotate. Under the condition that one end of the rotating rod 503 is located in the inner cavity of the connecting shell 501 and is meshed with the driven bevel gear 505 through the driving bevel gear 504, it drives the driven bevel gear 505 to rotate. The rotating screw rod 506 is connected to the side wall of the inner cavity of the connecting shell 501 through the bearing seat, wherein the connection method of the rotating screw rod 506 and the bearing seat is rotational connection. The connection method is a rotational connection, which drives the rotating screw rod 506 to rotate. The rotating screw rod 506 is composed of a left-hand screw rod and a right-hand screw rod. The connection method of the rotating screw rod 506 and the movable slider 507 is a threaded connection. A connecting hole is provided on the movable slider 507 corresponding to the limiting slider 508, wherein the connection method of the limiting slider 508 and the connecting hole is a sliding connection. The bottom of the connecting shell 501 is provided with a sliding groove corresponding to the connecting slider 509, wherein the connection method of the connecting slider 509 and the sliding groove is a sliding connection, which drives the two groups of movable sliders 507 to move in relative or opposite directions on the side walls of the rotating screw rod 506, thereby driving the connecting slider 509 and the detection connector 510 to move in relative or opposite directions, adjusting the distance between the two groups of detection connectors 510, and then meeting the connection requirements between the detection connector 510 and the positive and negative contacts on the end face of the distribution transformer.

[0035] Under the condition that the conveyor 2 is connected to the controller 3 through a wire and the connection is electrical, the conveyor 2 is started, and then the distribution transformer is transported to the bottom of the alternating lifting structure 4. Under the condition that the drive motor 403 is connected to the controller 3 through a wire and the connection is electrical, the drive motor 403 is started, so that the driving end of the drive motor 403 rotates, and the rotating rod 404 is connected to the side wall of the fixed box 402 through a bearing seat, wherein the connection between the rotating rod 404 and the bearing seat is a rotational connection, which drives the rotating rod 404 to rotate. When the rotating rod 404 rotates, it drives the rotating gear 405 to rotate. The side wall of the rotating gear 405 is symmetrically connected with a lifting rack 406, and a sliding groove is provided on the fixed slide rail 407 corresponding to the lifting rack 406, wherein the connection between the lifting rack 406 and the sliding groove is a sliding connection, and a sliding groove is provided on the limiting slide rail 408 corresponding to the limiting slide 409, wherein the limiting slide When the bar 409 is connected to the slide groove in a sliding manner, it drives one group of lifting racks 406 to move upward and drives the other group of lifting racks 406 to move downward. A connecting groove is provided at one end of the lifting rack 406 and the limit slide bar 409 and corresponds to the connecting slider 410, wherein the connecting slider 410 and the connecting groove are matched in a clearance fit, and the guide slide bar 412 and the guide slide groove 414 are connected in a sliding manner. Under the condition that the guide slide groove 414 adopts an oblique guide structure, it drives the connecting slide 411 to move downward while moving toward the middle, thereby driving the detection connector 510 to connect with the positive and negative contacts on the end face of the distribution transformer, and then detecting the voltage of the distribution transformer. When the detection is completed, one group of detection connectors 510 rises while driving the other group of detection connectors 510 to move downward, thereby increasing the speed of connection between the detection connector 510 and the positive and negative contacts on the end face of the distribution transformer, thereby improving the detection efficiency.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distribution transformer voltage detection device, comprising a connection base (1), characterized in that: The end surface of the connecting base (1) is connected to a conveyor (2), the side wall of the connecting base (1) is connected to a controller (3), the end surface of the conveyor (2) is connected to an alternating lifting structure (4), and the alternating lifting structure (4) is connected to an adjustable detection structure (5); The alternating lifting structure (4) includes a connecting frame (401), the connecting frame (401) is connected to the end face of the conveyor (2), the end face of the connecting frame (401) is connected to a fixed box (402), the end face of the connecting frame (401) and located on one side of the fixed box (402) is connected to a driving motor (403) through a connecting plate, the driving end of the driving motor (403) is connected to a rotating rod (404) through a coupling, the side wall of the rotating rod (404) and located in the inner cavity of the fixed box (402) is connected to a rotating gear (405), the side wall of the rotating gear (405) is symmetrically connected to a lifting rack (406), the side wall of the lifting rack (406) is connected to a fixed slide rail (407), and the fixed slide rail (407) is connected to the fixed box. On the side wall of the inner cavity (402), the side wall of the fixed slide rail (407) is symmetrically connected to the limiting slide rail (408), the back of the limiting slide rail (408) is connected to the side wall of the inner cavity of the fixed box (402), the limiting slide bar (409) is connected in the limiting slide rail (408), one end of the lifting rack (406) and the limiting slide bar (409) is connected to the connecting slider (410), one end of the connecting slider (410) is connected to the connecting slide plate (411), the side wall of the connecting slide plate (411) is symmetrically connected to the guide slide bar (412), the bottom of the connecting frame (401) and on both sides of the connecting slide plate (411) are symmetrically connected to the fixed connecting plate (413), and the fixed connecting plate (413) is provided with a guide slide groove (414) corresponding to the guide slide bar (412).

2. A distribution transformer voltage detection device according to claim 1, characterized in that: The adjustable detection structure (5) comprises a connecting shell (501), the connecting shell (501) is connected to the bottom of the connecting slide (411), a rotating motor (502) is connected to the side wall of the connecting shell (501) via a connecting seat, a driving end of the rotating motor (502) is connected to a rotating rod (503) via a coupling, one end of the rotating rod (503) is located in the inner cavity of the connecting shell (501) and is meshed with a driven bevel gear (505) via a driving bevel gear (504), and the center of the driven bevel gear (505) is connected to the driven bevel gear (505). A rotating screw (506) is connected at the center and located in the inner cavity of the connecting shell (501), a moving slider (507) is symmetrically connected to the side wall of the rotating screw (506), a limiting slider (508) is connected on the moving slider (507) and located on one side of the rotating screw (506), both ends of the limiting slider (508) are connected to the side wall of the inner cavity of the connecting shell (501), the bottom of the moving slider (507) is connected to the connecting slider (509), and the bottom of the connecting slider (509) is connected to the detection connector (510).

3. A distribution transformer voltage detection device according to claim 2, characterized in that: The controller (3) is provided with a voltage detector, a display screen, an integrated circuit board and a control switch. The conveyor (2) is connected to the controller (3) via a wire and the connection method is electrical connection. The drive motor (403) is connected to the controller (3) via a wire and the connection method is electrical connection.

4. A distribution transformer voltage detection device according to claim 2, characterized in that: The rotating rod (404) is connected to the side wall of the fixed box (402) through a bearing seat, wherein the rotating rod (404) and the bearing seat are connected in a rotating manner, and a sliding groove is provided on the fixed slide rail (407) and corresponds to the lifting rack (406), wherein the lifting rack (406) and the sliding groove are connected in a sliding manner.

5. A distribution transformer voltage detection device according to claim 2, characterized in that: A sliding groove is provided on the limiting slide rail (408) and corresponds to the limiting slide bar (409), wherein the limiting slide bar (409) is connected to the sliding groove in a sliding manner, and a connecting groove is provided on one end of the lifting rack (406) and the limiting slide bar (409) and corresponds to the connecting slider (410), wherein the connecting slider (410) and the connecting groove are matched in a clearance fit.

6. A distribution transformer voltage detection device according to claim 2, characterized in that: The guide slide bar (412) and the guide slot (414) are connected in a sliding manner, the guide slot (414) adopts an oblique guide structure, the rotating motor (502) is connected to the controller (3) via a wire and the connection is electrically connected, the rotating rod (503) is connected to the side wall of the connecting shell (501) via a bearing seat, and the connection between the rotating rod (503) and the bearing seat is a rotating connection.

7. A distribution transformer voltage detection device according to claim 2, characterized in that: The rotating screw (506) is connected to the side wall of the inner cavity of the connecting shell (501) through a bearing seat, wherein the rotating screw (506) and the bearing seat are connected in a rotating manner, the rotating screw (506) is spliced ​​by a section of left-handed screw and a section of right-handed screw, and the rotating screw (506) and the movable slider (507) are connected in a threaded manner.

8. The distribution transformer voltage detection device according to claim 2, characterized in that: A connecting hole is provided on the movable slider (507) and corresponds to the limiting slider (508), wherein the limiting slider (508) is connected to the connecting hole in a sliding manner, a sliding groove is provided on the bottom of the connecting shell (501) and corresponds to the connecting slider (509), wherein the connecting slider (509) is connected to the sliding groove in a sliding manner, and the detection connector (510) is connected to the controller (3) through a wire, wherein the detection connector (510) is connected to the controller (3) in an electrical manner.

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