A leakage detection device for power transformation maintenance

Abstract

The present application belongs to the technical field of electric leakage detection, and particularly relates to a power transformation and maintenance electric leakage detection device, which comprises a lifting platform, a storage box and an instrument fixing table, the lifting platform is used for supporting the storage box; the storage box comprises a dustpan-shaped storage part and an L-shaped cover part, the dustpan-shaped storage part comprises a bottom plate, a front plate and two side plates, the L-shaped cover part comprises a top plate, a back plate and a pair of connecting plates; the front end A of the instrument fixing table is hinged to the side plate, and the rear end A is hinged to the connecting plate; a pair of jack rods are arranged below the instrument fixing table, the jack rods comprise front ends B, hinge joints and rear ends B in sequence from front to back, the hinge joints are hinged to the side plates, and the rear ends B are hinged to the connecting plates; the instrument fixing table, the jack rods, the side plates and the connecting plates form a parallelogram; the front ends B of the two jack rods are fixedly connected through a connecting rod B, the connecting rod B is connected with the bottom plate through a push-pull mechanism A; an electric leakage detector is fixed on the instrument fixing table, and an operation panel is parallel to the top surface of the instrument fixing table; the technical scheme is more convenient to use.

Description

Technical Field

[0001] This invention belongs to the field of leakage current detection technology, and specifically relates to a leakage current detection device for substation maintenance. Background Technology

[0002] Leakage current detection devices are a common tool in substation maintenance work, used to ensure the safety of maintenance operations. Because currently available leakage current detection equipment on the market cannot meet actual usage requirements, some users have made various improvements to existing products, such as: Chinese utility model patent with publication number CN217521338U addresses the technical problem that "the height of leakage current detection equipment cannot be adjusted according to the user's needs" by improving ease of use through the setting of a height adjustment mechanism.

[0003] Chinese invention patent application CN118033481A addresses the technical problem that "the display panel and operation panel of the leakage current detection device face upwards and cannot be adjusted, causing inconvenience to operators." It improves the device by setting up two states, horizontal and tilted, to correspond to storage and better viewing angle, thereby improving the usability.

[0004] While the aforementioned improvements to the existing technologies have all solved the problems they face in their respective applications, they cannot be integrated to simultaneously address the two technical issues mentioned above. Specifically, the Chinese utility model patent with publication number CN217521338U still suffers from the technical problem that "the display panel and operation panel of the leakage current detection device face upwards and cannot be adjusted, causing inconvenience to operators." The Chinese invention patent application with publication number CN118033481A, due to the tool storage box design, still suffers from the technical problem that "the height of the leakage current detection device cannot be adjusted according to the user's needs."

[0005] The inventors are dedicated to solving two major technical problems while retaining the tool storage box: "the height of the leakage current detection device cannot be adjusted according to the user's needs" and "the display panel and operation panel of the leakage current detection device face upwards and cannot be adjusted, causing inconvenience to operators." This is to further improve ease of use. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a leakage current detection device for substation maintenance.

[0007] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: A leakage current detection device for substation maintenance includes a lifting platform, a storage box, and an instrument fixing platform, wherein the lifting platform is used to support the storage box; The storage box includes a separate hopper-shaped storage section and an L-shaped cover section. The hopper-shaped storage section includes an integrally connected bottom plate, front plate, and two side plates. The L-shaped cover section includes an integrally connected top plate, back plate, and a pair of connecting plates. The instrument mounting platform includes a front end A and a rear end A. The front end A is hinged to the side plate, and the rear end A is hinged to the connecting plate. A pair of rocker arms are provided below the instrument mounting platform along the left-right direction. The rocker arms, from front to back, include a front end B, a hinge fulcrum, and a rear end B. The hinge fulcrum is hinged to the side plate, and the rear end B is hinged to the connecting plate. The instrument mounting platform, rocker arms, side plate, and connecting plate form a parallelogram. The front ends B of the two rocker arms are fixedly connected by a connecting rod B, and the connecting rod B is connected to the base plate through a push-pull mechanism A. The leakage current detector is fixed on the instrument mounting platform, and the operation panel is parallel to the top surface of the instrument mounting platform. When the push-pull mechanism A is in the pulled-back state, the L-shaped cover is open, the leakage current detector flips to the top of the scoop-shaped storage part and the panel is tilted to face forward; when the push-pull mechanism A is in the pushed-out state, the leakage current detector flips into the inner cavity of the scoop-shaped storage part and the L-shaped cover is engaged with the scoop-shaped storage part.

[0008] Furthermore, a tool storage box is provided inside the hopper-shaped storage section.

[0009] Furthermore, a U-shaped handle is hinged to the hopper-shaped storage section.

[0010] Furthermore, the push-pull mechanism A includes an electric telescopic rod A, which includes a cylinder A and a telescopic rod A. The telescopic rod A is hinged to a hinge lug D, which is fixedly connected to the connecting rod B. The cylinder A is hinged to a hinge lug C, which is fixedly connected to the base plate.

[0011] Furthermore, the front panel of the scoop-shaped storage section is provided with an open button and a close button. Both the open button and the close button are connected to the controller. The open button is used to pull the push-pull mechanism A back, and the close button is used to push the push-pull mechanism A out.

[0012] Furthermore, the two ends of the support rod G are respectively hinged to the middle of the instrument fixing platform and the rocker arm.

[0013] Furthermore, the lifting platform is an electric lifting platform, including a lifting platform surface for supporting the storage box; a limiting unit is provided between the lifting platform surface and the storage box to limit the degree of freedom of movement of the storage box relative to the lifting platform surface.

[0014] Furthermore, the limiting unit includes support columns disposed at the four corners of the bottom plate of the scoop-shaped storage part, and also includes limiting holes disposed on the lifting platform. The limiting holes are disposed in a one-to-one correspondence with the support columns, and the limiting holes are used to insert the support columns.

[0015] Furthermore, the support column is a conical rubber block, and the lower part of the support column is inserted into a limiting hole.

[0016] Furthermore, the lifting platform also includes a base, and a pair of telescopic legs are provided between the lifting platform surface and the base. The telescopic legs are planar scissor linkage mechanisms, and the extension and retraction of the telescopic legs are driven by an electric telescopic rod B.

[0017] The beneficial effects of this invention are as follows: the storage box is configured with a separate scoop-shaped storage section and an L-shaped cover section, and the parallelogram structure enables simultaneous opening of the cover, removal of the leakage current detector, and tilting of the detector's operation panel for easy use. The scoop-shaped storage section can be used to house a tool storage box, and the bottom of the scoop-shaped section is relatively fixed, allowing for the installation of a height adjustment mechanism or lifting platform below it. Compared with existing technologies, this invention effectively solves the two major technical problems of "the height of the leakage current detection equipment cannot be adjusted according to the user's needs" and "the display and operation panels of the leakage current detection equipment face upwards and cannot be adjusted, causing inconvenience to operators" while retaining the tool storage box, thus further improving ease of use. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of an embodiment of the present invention.

[0019] Figure 2 This is a perspective view of the lifting platform in an embodiment of the present invention.

[0020] Figure 3 This is a perspective view of the storage box in an embodiment of the present invention (from the right front view of the process state).

[0021] Figure 4 yes Figure 3 The diagram is without the leakage current detector.

[0022] Figure 5 This is a perspective view of the storage box in an embodiment of the present invention (right rear view of the process state).

[0023] Figure 6 This is a side view (process state) of the storage box in an embodiment of the present invention.

[0024] Figure 7 This is a side sectional view (process state) of the storage box in an embodiment of the present invention.

[0025] Figure 8 This is a side sectional view (in storage state) of the storage box in an embodiment of the present invention.

[0026] Figure 9 This is a diagram showing the state changes of the storage box in an embodiment of the present invention.

[0027] Figure 10 This is a perspective view of the storage box in the embodiment of the present invention (right front view in the storage state).

[0028] Figure 11 This is a perspective view of the storage box in the embodiment of the present invention (right rear view in the storage state).

[0029] Figure 12 This is a diagram illustrating the height adjustment state changes during use in an embodiment of the present invention.

[0030] In the diagram: 1-Lifting platform, 101-Lifting platform surface, 1011-Limiting hole, 102-Base, 103-Connecting rod A, 104-Hinge A, 105-Hinge B, 106-Electric telescopic rod B, 107-Support rod A, 108-Support rod B, 109-Support rod C, 110-Support rod D, 111-Support rod E, 112-Support rod F, 2-Basket-shaped storage section, 201-Base plate, 202-Front plate, 203-Side plate 204-Support column, 3-L-shaped cover, 301-Top plate, 302-Rear plate, 303-Connecting plate, 4-U-shaped handle, 5-Leakage detector, 6-Instrument mounting platform, 601-Front end A, 602-Rear end A, 7-Pry bar, 701-Front end B, 702-Hinge fulcrum, 703-Rear end B, 8-Tool storage box, 9-Hinge C, 10-Electric telescopic rod A, 11-Hinge D, 12-Support rod G, 13-Connecting rod B. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 As shown, a leakage current detection device for substation maintenance includes a lifting platform 1 and a supporting storage box. The lifting platform 1 is used to support the storage box.

[0033] like Figure 3 As shown, the storage box includes a scoop-shaped storage section 2 and an L-shaped cover section 3 that are separated from each other. The scoop-shaped storage section 2 includes a bottom plate 201, a front plate 202 and two side plates 203 that are integrally connected. The L-shaped cover section 3 includes a top plate 301, a back plate 302 and a pair of connecting plates 303 that are integrally connected.

[0034] like Figure 3As shown, it also includes an instrument mounting platform 6, which includes a front end A601 and a rear end A602. The front end A601 is hinged to the side plate 203, and the rear end A602 is hinged to the connecting plate 303. A pair of rocker arms 7 are provided below the instrument mounting platform 6 along the left-right direction. The rocker arms 7 include a front end B701, a hinge fulcrum 702, and a rear end B703 in sequence from front to back. The hinge fulcrum 702 is hinged to the side plate 203, and the rear end B703 is hinged to the connecting plate 303. The instrument mounting platform 6, rocker arms 7, side plate 203, and connecting plate 303 form a parallelogram. The front ends B701 of the two rocker arms 7 are fixedly connected by a connecting rod B13, and the connecting rod B13 is connected to the base plate 201 through a push-pull mechanism A. The two ends of the support rod G12 are respectively hinged to the middle of the instrument mounting platform 6 and the rocker arms 7 to enhance the support performance of the rocker arms 7. The push-pull mechanism A includes an electric telescopic rod A10, which comprises a cylinder A and a telescopic rod A. The telescopic rod A is hinged to a hinge lug D11, which is fixedly connected to a connecting rod B13. The cylinder A is hinged to a hinge lug C9, which is fixedly connected to a base plate 201. The leakage current detector 5 is fixed on the instrument mounting platform 6, with the operation panel parallel to the top surface of the instrument mounting platform 6. like Figures 7-8 As shown, when the push-pull mechanism A is in the pulled-back state, the L-shaped cover 3 is opened, and the leakage current detector 5 flips to the top of the scoop-shaped storage part 2 with the panel tilted forward; when the push-pull mechanism A is in the pushed-out state, the leakage current detector 5 flips into the inner cavity of the scoop-shaped storage part 2, and the L-shaped cover 3 is fastened to the scoop-shaped storage part 2.

[0035] The front plate 202 of the scoop-shaped storage section 2 is equipped with an open button and a close button (not shown in the figure). Both the open button and the close button are connected to the controller. The open button is used to pull the push-pull mechanism A into the pull-back state, and the close button is used to push the push-pull mechanism A into the push-out state.

[0036] The inner cavity of the scoop-shaped storage section 2 is equipped with a tool storage box 8 for storing tools.

[0037] The basket-shaped storage section 2 is hinged with a U-shaped handle 4 for easy storage and retrieval.

[0038] like Figure 2As shown, the lifting platform 1 is an electric lifting platform, including a lifting platform 101 and a base 102. The lifting platform 101 is used to support the storage box. A pair of telescopic legs are provided between the lifting platform 101 and the base 102. The telescopic legs are planar scissor linkage mechanisms, and the extension and retraction of the telescopic legs are driven by an electric telescopic rod B106. The telescopic outrigger includes support rods A107, B108, C109, D110, E111, and F112. The lower end of support rod B108 and the upper end of support rod D110 are respectively hinged to the middle of support rod A107 and support rod F112. The lower end of support rod D110 is hinged to the upper end of support rod A107, and the upper end of support rod B108 is hinged to the lower end of support rod F112. Support rods F112, B108, A107, and D110 form a parallelogram structure. The upper end of rod F112 is hinged to the lifting platform 101, and the lower end of support rod A107 is hinged to the base 102. The upper end of support rod F112 and the lower end of support rod A107 are diagonally related. The upper end of support rod E111 is hinged to the lifting platform 101, and the lower end of support rod E111 is hinged to the upper end of support rod A107. Support rod E111 and support rod F112 are intersecting. The lower end of support rod C109 is hinged to the base 102, and the upper end of support rod C109 is hinged to the lower end of support rod F112. Support rod C109 and support rod A107 are intersecting. The support rods C109 of the two telescopic outriggers are fixedly connected by the connecting rod A103. The hinge piece A104 is fixedly connected to the connecting rod A103. The telescopic rod B of the electric telescopic rod B106 is hinged to the hinge piece A104. The cylinder B of the electric telescopic rod B106 is hinged to the hinge piece B105. The hinge piece B105 is fixedly connected to the base 102.

[0039] A limiting unit is provided between the lifting platform 101 and the storage box to restrict the degree of freedom of movement of the storage box relative to the lifting platform 101. The limiting unit includes support columns 204 located at the four corners of the base plate 201 of the hopper-shaped storage section 2, such as... Figure 7 As shown; it also includes a limiting hole 1011 provided on the lifting platform 101, such as Figure 2 As shown, the limiting hole 1011 is provided in a one-to-one correspondence with the support column 204, and the limiting hole 1011 is used to insert the support column 204. The support column 204 is a conical rubber block, and the lower part of the support column 204 is inserted into the limiting hole 1011.

[0040] Use of this embodiment: When in use, the lifting platform 1 and the storage box can be used separately. If there is a table or work surface of suitable height at the work site, the storage box can be separated from the lifting platform 1 and placed on the table or work surface of suitable height. The cone-shaped rubber block support column 204 can play a role in shock absorption.

[0041] If there is no suitable table or work surface at the work site, the lifting platform 1 can be placed on the ground, the lifting platform 101 can be adjusted to a suitable height, and the support column 204 at the bottom of the storage box can be inserted into the limiting hole 1011 on the lifting platform 101. The support column 204 in the form of a conical rubber block can make the insertion an interference fit, thereby ensuring the stability and reliability of the insertion. At the same time, the support column 204 in the form of a conical rubber block can also play a role in shock absorption.

[0042] When the leakage current detector 5 needs to be connected and used, manually operate the open button. The controller will then pull the push-pull mechanism A back to the retracted state. At this time, the L-shaped cover 3 opens, and the leakage current detector 5 flips over to the top of the hopper-shaped storage section 2 with its panel tilted forward. Tools can then be taken out and put into the tool storage box 8 from the open rear of the storage box. The leakage current detector 5 can be used normally at this time with a comfortable viewing angle. When the leakage current detector 5 is finished being used, manually operate the close button. The controller will then pull the push-pull mechanism A out to the retracted state. At this time, the leakage current detector 5 flips over into the inner cavity of the hopper-shaped storage section 2, and the L-shaped cover 3 locks into the hopper-shaped storage section 2, storing the leakage current detector 5 in the storage box.

[0043] The above description is only one embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A leakage current detection device for substation maintenance, characterized in that: It includes a lifting platform (1), a storage box and an instrument fixing platform (6), with the lifting platform (1) used to support the storage box; The storage box includes a separate scoop-shaped storage section (2) and an L-shaped cover section (3). The scoop-shaped storage section (2) includes an integrally connected bottom plate (201), a front plate (202), and two side plates (203). The L-shaped cover section (3) includes an integrally connected top plate (301), a rear plate (302), and a pair of connecting plates (303). The instrument mounting platform (6) includes a front end A (601) and a rear end A (602). The front end A (601) is hinged to the side plate (203), and the rear end A (602) is hinged to the connecting plate (303). A pair of rocker arms (7) are provided below the instrument mounting platform (6) along the left-right direction. The rocker arms (7) include a front end B (701), a hinge point (702), and a rear end B (703) in sequence from front to back. The hinge point (702) is hinged to the side plate (203), and the rear end B (703) is hinged to the side plate (203). B (703) is hinged to the connecting plate (303); the instrument fixing platform (6), the rocker arm (7), the side plate (203) and the connecting plate (303) form a parallelogram; the front ends B (701) of the two rocker arms (7) are fixedly connected by the connecting rod B (13), and the connecting rod B (13) is connected to the base plate (201) through the push-pull mechanism A; the leakage current detector (5) is fixed on the instrument fixing platform (6), and the operation panel is parallel to the top surface of the instrument fixing platform (6); When the push-pull mechanism A is in the pulled-back state, the L-shaped cover (3) is opened, the leakage current detector (5) flips over to the top of the scoop-shaped storage part (2) and the panel is tilted to face forward; when the push-pull mechanism A is in the pushed-out state, the leakage current detector (5) flips into the inner cavity of the scoop-shaped storage part (2) and the L-shaped cover (3) is fastened to the scoop-shaped storage part (2).

2. The leakage current detection device for substation maintenance according to claim 1, characterized in that: A tool storage box (8) is provided in the inner cavity of the scoop-shaped storage section (2).

3. The leakage current detection device for substation maintenance according to claim 1, characterized in that: The scoop-shaped storage section (2) is hinged with a U-shaped handle (4).

4. The leakage current detection device for substation maintenance according to claim 1, characterized in that: The push-pull mechanism A includes an electric telescopic rod A (10), which includes a cylinder A and a telescopic rod A. The telescopic rod A is hinged to a hinge member D (11), which is fixedly connected to the connecting rod B (13). The cylinder A is hinged to a hinge member C (9), which is fixedly connected to the base plate (201).

5. The leakage current detection device for substation maintenance according to claim 1, characterized in that: The front plate (202) of the scoop-shaped storage part (2) is provided with an open button and a close button. Both the open button and the close button are connected to the controller. The open button is used to make the push-pull mechanism A pull back, and the close button is used to make the push-pull mechanism A push out.

6. The leakage current detection device for substation maintenance according to claim 1, characterized in that: The two ends of the support rod G (12) are respectively hinged to the middle of the instrument fixing platform (6) and the rocker arm (7).

7. The leakage current detection device for substation maintenance according to claim 1, characterized in that: The lifting platform (1) is an electric lifting platform, including a lifting platform (101), which is used to support the storage box. A limiting unit is provided between the lifting platform (101) and the storage box to limit the degree of freedom of movement of the storage box relative to the lifting platform (101).

8. The leakage current detection device for substation maintenance according to claim 7, characterized in that: The limiting unit includes support columns (204) at the four corners of the bottom plate (201) of the scoop-shaped storage part (2), and also includes limiting holes (1011) on the lifting platform (101). The limiting holes (1011) are provided in a one-to-one correspondence with the support columns (204), and the limiting holes (1011) are used to insert the support columns (204).

9. The leakage current detection device for substation maintenance according to claim 8, characterized in that: The support column (204) is a conical rubber block, and the lower part of the support column (204) is inserted into the limiting hole (1011).

10. The leakage current detection device for substation maintenance according to claim 7, characterized in that: The lifting platform (1) also includes a base (102). A pair of telescopic legs are provided between the lifting platform (101) and the base (102). The telescopic legs are planar scissor linkage mechanisms. The extension and retraction of the telescopic legs are driven by an electric telescopic rod B (106).

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