Rotatable cover plate for transformer experiment insulation platform

Abstract

The utility model discloses a rotatable cover plate for a transformer experiment insulation platform, which comprises a base, an insulation platform is arranged on the base, a deep groove is arranged on the base surrounding the circumference of the insulation platform, the rotatable cover plate further comprises a plurality of cover plates distributed along the circumference of the deep groove, and the cover plates are driven by driving power to overturn vertically relative to the base. The cover plate is overturned downwards to be in a horizontal state, and the transverse frame is closed at the opening of the deep groove, so that the transformer is conveniently transferred to the insulating platform, or the cover plate is overturned upwards to be in a vertical state, so that the upper opening of the deep groove is opened, and the insulating platform and the base are disconnected through the deep groove; therefore, rapid switching of states can be achieved by turning over the cover plate, the efficiency of a transformer experiment is improved, the experiment requirement is met, and the transformer experiment table is simple in overall structure, ingenious in layout, convenient to operate and good in practicability.

Description

Technical Field

[0001] This utility model relates to the field of transformer test platform technology, and in particular to a rotatable cover plate for a transformer test insulation platform. Background Technology

[0002] In transformer experiments, the insulation platform is a key facility to ensure the accuracy and safety of the experiment.

[0003] In existing technologies, a pit is typically dug in the ground, a steel structure platform is built inside, and an insulating platform is supported by insulating materials. A deep trench is then dug around the insulating platform to effectively ensure its insulation performance. However, this structure poses a challenge to the transportation of transformers. To ensure the transformer can reach the platform smoothly, a cover plate needs to be installed over the deep trench.

[0004] The existing cover plate is difficult to remove during transformer experiments, and it is difficult to quickly and reliably disconnect the platform from the ground, which cannot meet the requirements of efficient experiments. Utility Model Content

[0005] To address the aforementioned issues, this application provides a rotatable cover plate with a reasonable structure for an insulation platform used in transformer experiments. This allows for rapid switching of states by flipping the cover plate, thereby improving the efficiency of transformer experiments. Furthermore, the overall structure is simple, the layout is ingenious, the operation is convenient, and the practicality is good.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A rotatable cover plate for an insulating platform used in transformer experiments includes a base, an insulating platform mounted on the base, a deep groove formed around the circumference of the insulating platform on the base, and multiple cover plates arranged circumferentially along the deep groove. The cover plates are driven by a driving force to rotate vertically relative to the base; the cover plates rotate downward to a horizontal state and close at the opening of the deep groove, or the cover plates rotate upward to a vertical state and open the upper opening of the deep groove.

[0008] As a further improvement to the above technical solution:

[0009] The top surface of the insulating platform is recessed along its circumferential edge to form an inner recessed edge, and the inner end of the cover plate in the horizontal state is supported at the inner recessed edge; the base located at the upper edge of the outer wall of the deep trench is recessed along its circumferential edge to form an outer recessed edge, and the outer end of the cover plate in the horizontal state is supported at the outer recessed edge; the top surface of the cover plate in the horizontal state is flush with the top surface of the base on the outer side of the deep trench and the top surface of the insulating platform.

[0010] A movable hinge is installed on the vertical wall of the outer concave edge, and a fixed hinge corresponding to the movable hinge is installed on the outer end face of the cover plate. A vertical elongated hole is opened on the movable hinge, and a pin is installed on the fixed hinge through the vertical elongated hole.

[0011] The movable hinge includes a fixing plate fixed to the side wall of the outer concave edge. A sliding seat is slidably mounted on the side of the fixing plate via a sliding guide. A support plate is installed on the side of the sliding seat. A vertical elongated hole is provided on the support plate for the pin shaft in the fixed hinge to be fitted.

[0012] The driving force is a linear drive, with the upper end of the linear drive rotatably mounted on the upper support on the bottom surface of the cover plate, and the lower end of the linear drive rotatably mounted on the lower support on the side wall of the deep trench.

[0013] The lower support is located on the side wall of the deep trench away from the insulating platform, and the upper support is installed on the bottom edge of the cover plate near the lower support; a second embedded part is provided on the side wall of the deep trench, and the lower support is fixedly installed on the second embedded part.

[0014] A groove is provided in the middle of the end face of the fixed hinge. When the cover plate is in a vertical state, the groove is fitted onto the top surface of the sliding seat, and the end face of the cover plate is attached to and supported on the top surface of the base.

[0015] One sidewall of the groove is a flat surface, and the other sidewall of the groove is an inclined surface one that flares outward toward the opening. An inclined surface two is provided at the end of the flat surface.

[0016] The sliding guide is an L-shaped cross-section guide arranged in opposite directions. The two guides and the fixed plate form a space for the sliding seat to slide and fit together. The lower ends of both sides of the sliding seat have protrusions that restrict the sliding seat from sliding upward and disengaging from the guides.

[0017] An embedded part is provided on the vertical wall surface of the outer concave edge, and a movable hinge is installed on the embedded part.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model allows the cover plate to flip downwards to a horizontal state, while the crossbar closes at the opening of the deep groove, facilitating the transfer of the transformer to the insulation platform. Alternatively, the cover plate can flip upwards to a vertical state, opening the upper opening of the deep groove and cutting off the connection between the insulation platform and the base through the deep groove. This enables rapid switching of states by flipping the cover plate, helping to improve the efficiency of transformer experiments, meeting experimental requirements, and featuring a simple overall structure, ingenious layout, convenient operation, and good practicality.

[0020] This utility model also has the following advantages:

[0021] When closed, the cover plate is supported on the inner recessed edge of the insulating platform and the outer recessed edge of the base on opposite sides, thereby effectively ensuring the structural support performance of the cover plate, reducing or even avoiding deformation or damage under heavy pressure, and avoiding stress on the connecting components between the cover plate and the base.

[0022] By installing a movable hinge on the base and a fixed hinge at the end of the cover plate, combined with the sliding seat in the movable hinge, when the cover plate is opened upward, the fixed hinge moves relative to the movable hinge in the vertical direction, causing the bottom end of the opened cover plate to be located above the base and supported on the base. This effectively ensures the stability of the cover plate in the vertical state and effectively prevents the movable hinge from being subjected to force in the vertical state. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0025] Figure 3 This is a schematic diagram showing the state of the cover plate of this utility model when it is closed.

[0026] Figure 4 This is a schematic diagram showing the assembly of the cover plate and the deep groove when the cover plate of this utility model is closed.

[0027] Figure 5 This is a schematic diagram of the assembly of the movable hinge and the fixed hinge of this utility model (closed state).

[0028] Figure 6 This is a schematic diagram of the assembly of the movable hinge and the fixed hinge of this utility model (open state).

[0029] Figure 7 This is a schematic diagram of the structure of the fixed hinge of this utility model.

[0030] Figure 8 This is a schematic diagram showing the state of the cover plate before it is opened.

[0031] Figure 9 This is a schematic diagram showing the state of the cover plate of this utility model after it has been opened.

[0032] Figure 10 for Figure 9 A magnified view of a section at point B.

[0033] The components include: 1. base; 2. cover plate; 3. insulating platform; 4. deep trench; 5. linear drive power; 6. movable hinge; 7. fixed hinge; 8. insulating support; 9. base;

[0034] 20. End beam;

[0035] 31. Concave inner edge;

[0036] 41. Outer concave edge;

[0037] 51. Upper support; 52. Lower support; 53. Embedded part two;

[0038] 60. Embedded part 1; 61. Fixing plate; 62. Sliding guide; 63. Sliding seat; 64. Support plate; 65. End plate; 631. Protrusion; 641. Vertical elongated hole;

[0039] 71. Groove; 72. Pin; 711. Plane; 712. Inclined surface one; 713. Inclined surface two. Detailed Implementation

[0040] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0041] like Figure 1 and Figure 2 As shown, this embodiment of a rotatable cover plate for a transformer experimental insulation platform includes a base 1, on which an insulation platform 3 is disposed. A deep groove 4 is formed on the base 1 surrounding the insulation platform 3. The cover plate 2 is also arranged along the circumference of the deep groove 4. The cover plate 2 is driven by a driving force to rotate vertically relative to the base 1. The cover plate 2 rotates downward to a horizontal state and closes at the opening of the deep groove 4, which facilitates the transfer of the transformer to the insulation platform 3. Alternatively, the cover plate 2 rotates upward to a vertical state, which opens the upper opening of the deep groove 4 and disconnects the insulation platform 3 from the base 1 through the deep groove 4. This allows for rapid switching of states by rotating the cover plate 2, which helps to improve the efficiency of transformer experiments and meet experimental requirements.

[0042] like Figure 3 and Figure 4 As shown, the driving force is a linear drive 5. The upper end of the linear drive 5 is rotatably mounted on the upper support 51 on the bottom surface of the cover plate 2, and the lower end of the linear drive 5 is rotatably mounted on the lower support 52 on the side wall of the deep trench 4.

[0043] In this embodiment, the linear drive power 5 can be a hydraulic cylinder. The bottom of the hydraulic cylinder is hinged to the lower support 52, and the output end of the hydraulic cylinder is hinged to the upper support 51. When the hydraulic pump station is working, high-pressure hydraulic oil enters the hydraulic cylinder through the connecting pipeline, pushing the piston rod to extend and retract, thereby causing the cover plate 2 to flip at the opening of the deep trench 4 to achieve opening and closing switching.

[0044] In this embodiment, when the cover plate 2 is rotated to the vertical position, the position of the piston rod of the hydraulic cylinder can be locked by controlling the hydraulic system, such as by connecting a hydraulic lock in the hydraulic circuit, to prevent the cover plate 2 from being overturned by external force or due to its own weight.

[0045] In this embodiment, the bottom surface of the insulating platform 3 is supported on the base 9 by the insulating support 8, and the base 9 is installed on the base 1 inside the deep trench 4, which effectively ensures the reliable installation and insulation performance of the insulating platform 3.

[0046] In this embodiment, the base 1 can be concrete.

[0047] The top surface of the insulating platform 3 is recessed along its circumferential edge to form an inner recessed edge 31, and the inner end of the cover plate 2 in the horizontal state is supported at the inner recessed edge 31; the base 1 located at the upper edge of the outer wall of the deep trench 4 is recessed along its circumference to form an outer recessed edge 41, and the outer end of the cover plate 2 in the horizontal state is supported at the outer recessed edge 41; when in the horizontal state, the top surface of the cover plate 2 is flush with the top surface of the base 1 on the outer side of the deep trench 4 and the top surface of the insulating platform 3, such as Figure 3 As shown.

[0048] In this embodiment, when closed, the cover plate 2 is supported on the inner concave edge 31 of the insulating platform 3 and the outer concave edge 41 of the base 1 on opposite sides, thereby effectively ensuring the structural support performance of the cover plate 2, reducing or even avoiding deformation or damage under heavy pressure, and at the same time avoiding stress on the connecting components between the cover plate 2 and the base 1.

[0049] A movable hinge lug 6 is installed on the vertical wall of the outer concave edge 41. A fixed hinge lug 7 corresponding to the movable hinge lug 6 is installed on the outer end face of the cover plate 2. A vertical elongated hole 641 is opened on the movable hinge lug 6, and a pin 72 passing through the vertical elongated hole 641 is installed on the fixed hinge lug 7. Figure 5 As shown.

[0050] In this embodiment, by setting the vertical elongated hole 641 on the movable hinge 6, the cover plate 2 can move upward and flip relative to the movable hinge 6 along with the fixed hinge 7, so that the flipped cover plate 2 can be located at a higher position, such as on the base 1 above the movable hinge 6, while the cover plate 2 in the closed state can be located at the lower outer recessed edge 41, which effectively reduces the usable space while satisfying the use requirements.

[0051] The lower end of the cover plate 2, which is in a vertical position, is supported on the top surface of the base 1 outside the outer concave edge 41, as shown below. Figure 6 As shown, this ensures the stability of cover plate 2 in its vertical position.

[0052] The movable hinge 6 includes a fixing plate 61 fixed to the side wall of the outer concave edge 41. The side of the fixing plate 61 is slidably fitted with a sliding seat 63 via a sliding guide 62. A support plate 64 is installed on the side of the sliding seat 63. A vertical elongated hole 641 is provided on the support plate 64 for fitting the pin 72 in the fixed hinge 7.

[0053] In this embodiment, by installing a movable hinge 6 on the base 1 and a fixed hinge 7 on the end of the cover plate 2, combined with the setting of the sliding seat 63 in the movable hinge 6, when the cover plate 2 is opened upward, the fixed hinge 7 can move relative to the movable hinge 6 in the vertical direction, so that the bottom end of the opened cover plate 2 can be located above the base 1 and supported on the base 1, thereby effectively ensuring the stability of the cover plate 2 in the vertical state and effectively preventing the movable hinge 6 from being subjected to force in the vertical state.

[0054] In this embodiment, by using the movable hinge 6 and the fixed hinge 7, the cover plate 2 can be flipped open and closed, while the cover plate 2 and the hydraulic cylinder occupy little space, ensuring the insulation distance of the insulating platform 3 within a limited space.

[0055] In this embodiment, the support plate 64 includes two spaced-apart plates, which are fitted with pins 72 through corresponding vertical elongated holes 641 to ensure the reliable operation of the fixed hinge 7 relative to the movable hinge 6; end plates 65 can be installed at the ends of the two support plates 64 to ensure structural strength.

[0056] The lower support 52 at the end of the linear drive power 5 is located on the side wall of the deep trench 4 away from the insulating platform 3. The upper support 51 is installed on the bottom edge of the cover plate 2 near the lower support 52. Thus, when the linear drive power 5 is working, the end of the cover plate 2 supported on the outer concave edge 41 can be lifted upward first to provide sufficient space for subsequent upward flipping, and then flipped upward. The side wall of the deep trench 4 is provided with embedded part 2 53, and the lower support 52 is fixedly installed on embedded part 2 53.

[0057] exist Figure 6 In the embodiment shown, a groove 71 is provided in the middle of the end face of the fixed hinge 7. When the cover plate 2 is in a vertical state, the groove 71 is fitted on the top surface of the sliding seat 63, and the end face of the cover plate 2 is attached to and supported on the top surface of the base 1. The groove 71 forms a structural clearance between the fixed hinge 7 and the sliding seat 63, and effectively ensures the abutment support of the end of the cover plate 2 on the base 1.

[0058] like Figure 7 As shown, one side wall of the groove 71 is a flat surface 711, which effectively ensures the limiting and stability of the cover plate 2 in the vertical state. The other side wall of the groove 71 is an inclined surface 712 facing outward from the opening, which facilitates the fitting of the groove 71 with the sliding seat 63 during the flipping process of the cover plate 2. An inclined surface 713 is provided at the end of the flat surface 711.

[0059] exist Figure 6 In the embodiment shown, the fixed hinge 7 is located at the bottom end of the cover plate 2 in the vertical state. The cover plate 2 is supported by the bottom end of the fixed hinge 7 and abuts against the base 1 to avoid stress on the movable hinge 6.

[0060] exist Figure 10In the embodiment described above, the bottom end of the cover plate 2 in the vertical state is equipped with an end beam 20 with the opening facing downward, and the fixed hinge 7 is accommodated and installed inside the end beam 20. In the vertical state, the fixed hinge 7 is fitted above the sliding seat 63 of the movable hinge 6 via the groove 71, and is supported by the bottom end of the end beam 20 and abuts against the base 1, so as to realize the reliable support of the cover plate 2 and avoid the movable hinge 6 from being subjected to force.

[0061] The sliding guide 62 is an L-shaped cross-section guide arranged in opposite directions. The two guides and the fixed plate 61 form a space for the sliding seat 63 to slide and fit. The lower ends of both sides of the sliding seat 63 have protrusions 631 extending laterally, which restrict the sliding seat 63 from sliding upward and disengaging from the guides.

[0062] In this embodiment, the sliding guide 62 can also be other fitting structures that can guide the sliding seat 63 to move up and down relative to the fixed plate 61, such as the concave and convex fit of the groove and the edge, as long as it meets the requirements of use.

[0063] An embedded part 60 is provided on the vertical wall surface of the outer concave edge 41, and the movable hinge 6 is installed on the embedded part 60 to ensure the reliable installation of the movable hinge 6 on the base 1.

[0064] In this embodiment, multiple cover plates 2 can be arranged in an orderly manner along the circumference of the deep trench 4. At the corner of the deep trench 4, cover plates 2 can be arranged on one side of the corner by rotation, so that after all the cover plates 2 are flipped downwards, the deep trench 4 can be completely closed and there will be no interference between the cover plates 2.

[0065] In this embodiment, a rubber sealing strip can be installed on the cover plate 2. For example, a rubber sealing strip can be installed around the cover plate 2. When the cover plate 2 is horizontal, the rubber sealing strip is pressed tightly, which effectively prevents dust, debris and other objects from entering the deep trench 4.

[0066] In this embodiment, two sets of linear drive power 5 and two sets of fixed hinges 7 that are fitted with movable hinges 6 can be arranged horizontally at intervals on a single cover plate 2 to ensure the structural reliability and stability of the cover plate 2.

[0067] The method of using this utility model is as follows:

[0068] When it is necessary to transport the transformer to the insulation platform 3, the hydraulic pump station is started, causing the hydraulic cylinder piston rod to retract, which drives the cover plate 2 to rotate around the pin 72 until it is horizontally covering the opening of the deep trench 4. Figure 3 As shown, the cover plate 2 enables the structural connection between the base 1 and the insulation platform 3, allowing the transformer to be easily transported to the insulation platform 3 via the cover plate 2.

[0069] When the transformer is installed on the insulating platform 3 and a transformer test is to be conducted, the hydraulic pump station is started, causing the hydraulic cylinder piston rod to extend and push the cover plate 2 to slowly rotate from a horizontal position to a vertical position, including:

[0070] As the hydraulic cylinder moves, the fixed hinge 7 moves upward relative to the sliding seat 63 through the engagement of the pin 72 and the vertical elongated hole 641. Then, the pin 72 pulls the sliding seat 63 upward through the vertical elongated hole 641, causing the sliding seat 63 to move upward relative to the fixed plate 61, thereby lifting the end of the cover plate 2. Figure 8 As shown; with the continued action of the hydraulic cylinder, the cover plate 2 flips upward around the pin 72 until the bottom groove 71 of the fixed hinge 7 mates with the top of the sliding seat 63, and the cover plate 2 is in a vertical state, as shown. Figure 9 and Figure 10 As shown.

[0071] At this point, the hydraulic cylinder piston rod is locked, causing the cover plate 2 to flip upwards and disconnect the connection between the insulating platform 3 and the ground base 1 via the deep trench 4, ensuring the insulation of the insulating platform 3 and allowing for experimental operation.

[0072] This invention enables rapid switching of states through a flip-up cover, which helps improve the efficiency of transformer experiments, meets experimental requirements, and has a simple overall structure, ingenious layout, convenient operation, and good practicality.

[0073] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0074] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A rotatable cover plate for an insulating platform for transformer experiments, comprising a base (1), an insulating platform (3) disposed on the base (1), and a deep groove (4) formed on the base (1) surrounding the insulating platform (3), characterized in that: It also includes multiple cover plates (2) arranged circumferentially along the deep trench (4), the cover plates (2) being driven by a driving force to flip vertically relative to the base (1); the cover plates (2) are flipped downward to a horizontal state and the crossbar is closed at the opening of the deep trench (4), or the cover plates (2) are flipped upward to a vertical state so that the upper opening of the deep trench (4) is opened.

2. The rotatable cover plate for a transformer experimental insulation platform as described in claim 1, characterized in that: The top surface of the insulating platform (3) is recessed along the circumferential edge to form an inner recessed edge (31), and the inner end of the cover plate (2) in the horizontal state is supported at the inner recessed edge (31); the base (1) located at the upper edge of the outer wall of the deep trench (4) is recessed along the circumferential edge to form an outer recessed edge (41), and the outer end of the cover plate (2) in the horizontal state is supported at the outer recessed edge (41); the top surface of the cover plate (2) in the horizontal state is flush with the top surface of the base (1) outside the deep trench (4) and the top surface of the insulating platform (3).

3. A rotatable cover plate for a transformer experimental insulation platform as described in claim 2, characterized in that: A movable hinge (6) is installed on the vertical wall of the outer concave edge (41), and a fixed hinge (7) corresponding to the movable hinge (6) is installed on the outer end face of the cover plate (2). A vertical elongated hole (641) is opened on the movable hinge (6), and a pin (72) passing through the vertical elongated hole (641) is installed on the fixed hinge (7).

4. A rotatable cover plate for a transformer experimental insulation platform as described in claim 3, characterized in that: The movable hinge (6) includes a fixing plate (61) fixed to the side wall of the outer concave edge (41). The side of the fixing plate (61) is slidably fitted with a sliding seat (63) via a sliding guide (62). A support plate (64) is installed on the side of the sliding seat (63). A vertical elongated hole (641) is provided on the support plate (64) for fitting the pin (72) in the fixed hinge (7).

5. A rotatable cover plate for a transformer experimental insulation platform as described in claim 1 or 4, characterized in that: The driving power is a linear driving power (5). The upper end of the linear driving power (5) is rotatably mounted on the upper support (51) on the bottom surface of the cover plate (2), and the lower end of the linear driving power (5) is rotatably mounted on the lower support (52) on the side wall of the deep trench (4).

6. A rotatable cover plate for a transformer test insulation platform as described in claim 5, characterized in that: The lower support (52) is located on the side wall of the deep trench (4) away from the insulating platform (3), and the upper support (51) is installed on the bottom edge of the cover plate (2) near the lower support (52); the side wall of the deep trench (4) is provided with embedded part two (53), and the lower support (52) is fixedly installed on embedded part two (53).

7. A rotatable cover plate for a transformer test insulation platform as described in claim 4, characterized in that: The fixed hinge (7) has a groove (71) in the middle of its end face. When the cover plate (2) is in a vertical state, the groove (71) is fitted on the top surface of the sliding seat (63), and the end face of the cover plate (2) is attached to the top surface of the base (1).

8. A rotatable cover plate for a transformer experimental insulation platform as described in claim 7, characterized in that: One side wall of the groove (71) is a plane (711), and the other side wall of the groove (71) is an inclined surface (712) that opens outward toward the opening. An inclined surface (713) is provided at the end of the plane (711).

9. A rotatable cover plate for a transformer test insulation platform as described in claim 4, characterized in that: The sliding guide (62) is an L-shaped guide with an opposing cross section. The two guides and the fixed plate (61) form a space for the sliding seat (63) to slide and fit together. The lower ends of both sides of the sliding seat (63) have protrusions (631) extending laterally. The protrusions (631) restrict the sliding seat (63) from sliding upward and disengaging from the guide.

10. A rotatable cover plate for a transformer experimental insulation platform as described in claim 2, characterized in that: An embedded part (60) is provided on the vertical wall surface of the outer concave edge (41), and a movable hinge (6) is installed on the embedded part (60).

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