Box-type transformer substation top cover and box-type transformer substation

Abstract

The utility model belongs to the field of box-type substations, and particularly relates to a box-type substation top cover and a box-type substation. The box-type transformer substation top cover is used for solving the technical problems that the part, fixedly connected with a box-type transformer substation box body, of an existing box-type transformer substation top cover is blocked by foreign objects after being installed, and field disassembly and assembly are not convenient. The box-type transformer substation is used for solving the technical problems that an existing box-type transformer substation is inconvenient to install on site and high in labor cost. The top cover of the box transformer substation comprises a bent enclosure frame and a cover plate which is fixedly lapped on the bent enclosure frame, and the bent enclosure frame is provided with a lapping end which is lapped with a box body of the box transformer substation. First connecting plates are arranged on the inner sides of the frame corners of the bent enclosure frame, and detachable connecting structures are arranged on the first connecting plates so that the first connecting plates can be detachably connected with fixed connecting structures on the box body of the box-type transformer substation to achieve detachable fixing of the bent enclosure frame and the box body of the box-type transformer substation. Therefore, the detachable connecting structure on the first connecting plate can be far away from the box wall of the box body of the box-type transformer substation and is not easily blocked by electronic equipment in the box body of the box-type transformer substation, so that the detachable connecting structure is convenient to detach during field installation.

Description

Technical Field

[0001] The utility model belongs to the field of box-type substations, and particularly relates to a box substation top cover and a box-type substation. Background Art

[0002] The box-type substation is an extremely important component in the power grid system. At present, the outer shell of the existing box-type substation usually includes a box substation top cover and a box substation box body. The box substation top cover and the box substation box body are assembled into one at the factory for transportation. Specifically, reference can be made to the Chinese utility model patent with the authorization announcement number CN214506308U, which discloses a prefabricated dust-proof net roof for box substations (i.e., the box substation top cover). The roof includes a connecting frame for connecting with the house body (i.e., the box substation box body). A first folding plate and a second folding plate are arranged horizontally on the connecting frame. A first fixing plate is connected between the first folding plate and the second folding plate to form a rabbet structure for connecting with the house body on the roof. The second folding plate is fixedly connected with the house body through bolts. After the box substation top cover and the box substation box body are installed, since the bolt connection position is on the second folding plate and very close to the side wall of the box substation box body, and this position is also easily blocked by the electronic equipment in the box-type substation, it is not easy for technicians to disassemble the box substation top cover when installing the box substation on site. This makes the relevant electronic instruments in the box-type substation can only be transported into the box substation through the door of the box substation box body for installation, and cannot be disassembled and hoisted into the box substation from above the box substation box body, thus increasing the operation difficulty during the on-site installation of the box-type substation and also increasing the labor cost. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a box substation top cover to solve the technical problem that the part fixedly connected to the box substation box body on the existing box substation top cover is blocked by external objects after installation and is not convenient for on-site disassembly and assembly. The purpose of the utility model is to provide a box-type substation to solve the technical problems of inconvenient on-site installation and high labor cost of the existing box-type substation.

[0004] The utility model adopts the following technical scheme:

[0005] A box substation top cover includes a bent surrounding frame and a cover plate fixedly lapped on the bent surrounding frame. The bent surrounding frame has a lapping end for lapping with the box substation box body; a first connecting plate is arranged inside the frame angle of the bent surrounding frame, and a detachable connection structure is arranged on the first connecting plate for detachably connecting with the fixed connection structure on the box substation box body to realize the detachable fixation of the bent surrounding frame and the box substation box body.

[0006] Further, a second connecting plate is arranged inside the frame edge of the bent surrounding frame, and a detachable connection structure is arranged on the second connecting plate for detachably connecting with the fixed connection structure on the box substation box body to realize the detachable fixation of the bent surrounding frame and the box substation box body.

[0007] Further, the detachable connection structure includes fastener perforations provided on the first connecting plate and the second connecting plate, and fixing nuts fixedly provided at the hole edges above the fastener perforations.

[0008] Further, the first connecting plate includes a horizontally arranged first main body and a first reinforcing rib vertically arranged on the first main body.

[0009] Further, the first main body has a trapezoidal plate-like structure, and the first reinforcing rib is a first bent edge formed by bending upward from the longest side of the trapezoidal plate-like structure.

[0010] Further, the second connecting plate includes a horizontally arranged second main body and a support portion vertically arranged on the second main body, and the upper end of the support portion is fixedly connected to the cover plate to support the cover plate.

[0011] Further, the second main body and the support portion are integrally bent and formed, and second bent edges are provided at the edges of both.

[0012] Further, the box-type transformer top cover further includes support cross beams arranged at intervals along the length direction of the bending frame within the bending frame, and support longitudinal beams fixed on the support cross beams and extending along the length direction of the frame.

[0013] Further, lifting lugs are provided on the upper side surface of the cover plate, and lifting lug reinforcing ribs are fixedly provided on the lower side surface of the cover plate corresponding to the lifting lugs.

[0014] Beneficial effects: The present utility model provides a brand-new box-type transformer top cover for box-type substations. The box-type transformer top cover of the present utility model includes a bending frame and a cover plate fixedly lapped on the bending frame. The bending frame has a lapping end for lapping with the box-type transformer body, and a first connecting plate with a detachable connection structure is provided inside the frame corner of the bending frame so as to be detachably connected to the fixed connection structure on the box-type transformer body. Since the first connecting plate is provided inside the frame corner of the bending frame, during installation, the detachable connection structure on the first connecting plate can be far away from the box wall of the box-type transformer body and is not easily blocked by the electronic devices inside the box-type transformer body, so it is convenient to disassemble during on-site installation. Therefore, the above setting can facilitate the on-site assembly of the box-type substation during installation, that is, first install the box-type transformer body, then hoist and place the electronic devices into the box-type transformer body from the opening above, and finally fixedly install the box-type transformer top cover on the box-type transformer body. Such operation is convenient, time-saving and labor-saving, and greatly reduces the labor cost during on-site installation of the box-type substation.

[0015] A box-type substation includes a box-type substation body and a box-type substation top cover that can be detachably and fixedly installed on the box-type substation body. A fixed connection structure is provided on the box-type substation body. The box-type substation top cover includes a bent surrounding frame and a cover plate fixedly lapped on the bent surrounding frame. The bent surrounding frame has a lapping end for lapping with the box-type substation body. A first connecting plate is provided inside the frame corner of the bent surrounding frame, and a detachable connection structure is provided on the first connecting plate for detachably connecting with the fixed connection structure on the box-type substation body to achieve detachable fixation of the bent surrounding frame and the box-type substation body.

[0016] Further, a second connecting plate is provided inside the frame edge of the bent surrounding frame, and a detachable connection structure is provided on the second connecting plate for detachably connecting with the fixed connection structure on the box-type substation body to achieve detachable fixation of the bent surrounding frame and the box-type substation body.

[0017] Further, the detachable connection structure includes fastener through holes provided on the first connecting plate and the second connecting plate, and fixing nuts fixedly provided at the hole edges above the fastener through holes.

[0018] Further, the first connecting plate includes a horizontally arranged first main body and a first reinforcing rib vertically arranged on the first main body.

[0019] Further, the first main body has a trapezoidal plate-like structure, and the first reinforcing rib is a first bent edge bent upward from the longest side of the trapezoidal plate-like structure.

[0020] Further, the second connecting plate includes a horizontally arranged second main body and a support portion vertically arranged on the second main body. The upper end of the support portion is fixedly connected to the cover plate to support the cover plate.

[0021] Further, the second main body and the support portion are integrally bent, and second bent edges are provided at the edges of both.

[0022] Further, the box-type substation top cover further includes support cross beams arranged at intervals along the length direction of the bent surrounding frame inside the bent surrounding frame, and support longitudinal beams fixed on the support cross beams and extending along the length direction of the surrounding frame.

[0023] Further, lifting lugs are provided on the upper side surface of the cover plate, and lifting lug reinforcing ribs are fixedly provided on the lower side surface of the cover plate corresponding to the lifting lugs.

[0024] Beneficial effects: The utility model improves the existing box-type substation. The box-type substation described in the utility model includes a box-type substation body and a box-type substation top cover that can be detachably and fixedly installed on the box-type substation body. Among them, a fixed connection structure is provided on the box-type substation body, and the box-type substation top cover includes a bent surrounding frame and a cover plate fixedly lapped on the bent surrounding frame. The bent surrounding frame has a lapping end for lapping with the box-type substation body, and a first connecting plate with a detachable connection structure is arranged inside the frame angle of the bent surrounding frame so as to be detachably connected with the fixed connection structure on the box-type substation body. Since the first connecting plate is arranged inside the frame angle of the bent surrounding frame, during installation, the detachable connection structure on the first connecting plate can be far away from the box wall of the box-type substation body and is not easily blocked by the electronic equipment inside the box-type substation body, so it is convenient to disassemble during on-site installation. Therefore, the above setting can facilitate the on-site assembly of the box-type substation during installation, that is, first install the box-type substation body, then hoist and place the electronic equipment into the opening from above the box-type substation body, and finally fixedly install the box-type substation top cover on the box-type substation body. Such operation is convenient, time-saving and labor-saving, and greatly reduces the labor cost of on-site installation of the box-type substation. Description of the Drawings

[0025] Figure 1 is an axonometric view of the box-type substation top cover of the box-type substation described in the utility model;

[0026] Figure 2 is Figure 1 the axonometric view without the cover plate;

[0027] Figure 3 is Figure 1 the bottom view of

[0028] Figure 4 is Figure 3 the sectional view taken along A-A;

[0029] Figure 5 is Figure 1 the axonometric view of the first connecting plate in

[0030] Figure 6 is Figure 1 the axonometric view of the second connecting plate in

[0031] The names of the components corresponding to the corresponding reference numerals in the drawings are: 1. Box-type substation top cover; 2. Bent surrounding frame; 3. Cover plate; 4. Lapping end; 5. First connecting plate; 6. Second connecting plate; 7. Fixed nut; 8. First main body; 9. First bent edge; 10. Second main body; 11. Support part; 12. Second bent edge; 13. Support cross beam; 14. Support longitudinal beam; 15. Obtuse angle part; 16. Narrow edge part; 17. Longitudinal main beam; 18. Longitudinal secondary beam; 19. Lifting lug; 20. Lifting lug reinforcing rib; 21. Cover plate reinforcing rib. Detailed Implementation Modes

[0032] The features and performance of the present utility model will be further described in detail in conjunction with the embodiments below.

[0033] The schematic principle of the box-type substation of the present utility model is as follows:

[0034] A box-type substation includes a box-type substation body and a box-type substation top cover that can be detachably and fixedly installed on the box-type substation body. Among them, a fixed connection structure is provided on the box-type substation body, and the box-type substation top cover includes a bent surrounding frame and a cover plate fixedly lapped on the bent surrounding frame. The bent surrounding frame has a lapping end for lapping with the box-type substation body, and a first connecting plate with a detachable connection structure is provided inside the frame corner of the bent surrounding frame for detachable connection with the fixed connection structure on the box-type substation body.

[0035] In the above structure, the first connecting plate is arranged inside the frame corner of the bent surrounding frame. During installation, the detachable connection structure on the first connecting plate can be far away from the box wall of the box-type substation body and is not easily blocked by the electronic equipment inside the box-type substation body, so it is convenient to disassemble during on-site installation. Therefore, the above setting can facilitate the on-site assembly of the box-type substation, that is, first install the box-type substation body, then hoist and place the electronic equipment into the opening from above the box-type substation body, and finally fixedly install the box-type substation top cover on the box-type substation body. Such operation is convenient, time-saving and labor-saving, and greatly reduces the labor cost of on-site installation of the box-type substation.

[0036] In addition, compared with the prior art, since the above structure can avoid opening a connection structure at the lapping end of the bent surrounding frame, it can better ensure the sealing between the box-type substation body and the box-type substation top cover. The first connecting part is arranged inside the frame corner of the bent surrounding frame, which can save the space inside the box-type substation on the one hand and is also beneficial to strengthening the structural strength of the bent surrounding frame on the other hand.

[0037] Embodiment of the box-type substation of the present utility model:

[0038] A box-type substation includes a box-type substation body and a box-type substation top cover 1 that can be detachably and fixedly installed on the box-type substation body, wherein the box-type substation top cover 1 can be referred to Figure 1 as shown, and includes a bent surrounding frame 2 and a cover plate 3 fixedly lapped on the bent surrounding frame 2. The specific structure of the bent surrounding frame 2 can be referred to the connecting frame structure described in the Chinese utility model patent with the authorization announcement number CN214506308U, and is specifically in the shape of a rectangular square frame structure, and its lapping end 4 is in a rabbet structure, which will not be elaborated here. It can be referred to Figure 2 、 Figure 3 as shown, and a first connecting plate 5 can be fixedly arranged inside the frame corner of the bent surrounding frame 2 by means of welding, riveting, fastener connection, etc., and can be referred to Figure 5As shown, a detachable connection structure is provided on the first connecting plate 5 so as to be detachably connected to the fixed connection structure on the box-type transformer body, thereby realizing the detachable fixation of the bent enclosure 2 and the box-type transformer body. The box-type transformer body is an existing box-type transformer body, and a fixed connection structure is provided at a position corresponding to the detachable connection structure.

[0039] The key point of this embodiment is that a second connecting plate 6 is provided on the inner side of the frame edge of the bent enclosure 2. Reference can be made to Figure 6 As shown, a detachable connection structure is also provided on the second connecting plate 6 for detachably connecting to the fixed connection structure on the box-type transformer body to realize the detachable fixation of the bent enclosure 2 and the box-type transformer body. Correspondingly, a fixed connection structure is also provided at the corresponding position on the box-type transformer body. The above settings ensure the convenience of disassembly and assembly of the detachable connection structure, while increasing the connection points between the box-type transformer body and the box-type transformer cover, further improving the connection strength between the box-type transformer body and the box-type transformer cover. At the same time, due to the increase in connection points, the load borne by a single detachable connection structure will also become smaller accordingly. This is beneficial to the miniaturized design of the detachable connection structure, and further facilitates the disassembly and assembly of the box-type transformer top cover 1 at the installation site.

[0040] The detachable connection structure specifically includes fastener through holes provided on the first connecting plate 5 and the second connecting plate 6, and fixing nuts 7 fixedly arranged at the hole edges above the fastener through holes. Correspondingly, the fixed connection structure on the box-type transformer body can be a fixing plate provided with fixing holes. During installation, the construction personnel only need to insert the fastener from below the connecting plate, and thread and tighten the fastener with the fixing nuts 7 on the first connecting plate 5 and the second connecting plate 6, so that the box-type transformer body and the box-type transformer top cover 1 can be fixedly connected into one body. During removal, it only needs to remove the fastener from below. The above structure is simple, easy to process, and can effectively reduce the processing costs of the box-type transformer body and the box-type transformer top cover 1. At the same time, it is also convenient for disassembly and assembly operations and is easy to use. Of course, the detachable connection structure can also be a pull rod through hole provided on the first connecting plate 5 and the second connecting plate 6, and a pull rod fixing block with a fixing hole is provided at the corresponding position on the box-type transformer body. A pull rod is inserted through the pull rod through hole and the fixing hole, and a stop nut is screwed onto the pull rod below the fixing block and above the first connecting plate 5 and the second connecting plate 6, so as to fixedly connect the box-type transformer body and the box-type transformer top cover 1 into one body.

[0041] The foregoing first connecting plate 5 specifically includes a horizontally arranged first main body 8 and a first reinforcing rib vertically arranged on the first main body 8. By providing the first reinforcing rib, the strength of the first connecting plate 5 can be ensured, thereby ensuring the reliability of the fixed connection between the box-type transformer body and the box-type transformer top cover 1. Of course, the first main body 8 can also strengthen its own strength by increasing its own thickness. The first main body 8 is preferably in the shape of a trapezoidal plate, that is, the included angle formed by the two waists of the trapezoid is 90 degrees, and it is respectively fixed on one side frame edge of the frame corner of the bent enclosure 2. The first reinforcing rib is a first bent edge 9 bent upward from the longest side of the trapezoidal plate structure. Such a setting saves the volume of the first connecting plate 5 on the one hand, saves materials and also reduces the occupied space in the box-type substation. At the same time, since the first main body 8 is in the shape of a trapezoidal plate and the first reinforcing rib is the first bent edge 9 bent upward from the longest side of the trapezoidal plate structure, both the connection strength and the connection length between the first reinforcing rib and the first main body 8 are effectively increased, so the strength of the first connecting plate 5 itself is further strengthened. Of course, the first connecting plate 5 can also be in the shape of a rectangle, a right triangle, etc. Correspondingly, the first reinforcing rib can also be a straight plate vertically welded to the first main body 8 on the plate surface, or directly formed by stamping on the first main body 8.

[0042] The foregoing second connecting plate 6 includes a horizontally arranged second main body 10 and a supporting portion 11 vertically arranged on the second main body 10, so that the shape of the second connecting plate 6 is integrally L-shaped. Between the end of the second main body 10 facing away from the supporting portion 11 and the inner side of the frame edge of the foregoing bent enclosure 2, and between the upper end of the supporting portion 11 and the lower side of the cover plate 3, fixed connections are made by means such as welding, riveting, and screwing. In this way, while ensuring the connection between the box-type transformer top cover 1 and the box-type transformer body, the support for the cover plate 3 on the box-type transformer top cover 1 can also be strengthened through the supporting portion 11. At the same time, the fixed connection between the cover plate 3 and the supporting portion 11 also strengthens the connection strength between the second connecting plate 6 and the main body of the box-type transformer top cover 1, thereby ensuring the reliability of the fixed connection between the box-type transformer top cover 1 and the box-type transformer body. The second main body 10 and the supporting portion 11 are preferably formed by an integral bending method, and second bent edges 12 are provided at the edges of the second main body 10 and the supporting portion 11. This can strengthen the strength of the second connecting plate 6 as much as possible to ensure the reliable fixed connection between the box-type transformer top cover 1 and the main body of the box-type transformer. Of course, the second main body 10 and the supporting portion 11 can also be formed by welding. On this basis, the strength of the second connecting plate 6 can also be improved by welding reinforcing ribs on the second connecting plate 6. The second main body 10 and the supporting portion 11 can also be formed by stamping. On this basis, the reinforcing ribs on the second connecting plate 6 can also be formed by stamping.

[0043] For reference Figure 4As shown in the figure, the box-type transformer top cover 1 further includes support cross beams 13 arranged at intervals along the length direction of the bent frame 2 within the bent frame 2, and support longitudinal beams 14 fixed on the support cross beams 13 and extending along the length direction of the frame. Such a setting can further strengthen the structural strength of the box-type transformer top cover 1. Specifically, in this embodiment, the support cross beam 13 is a plate-like structure close to a triangle, which has an obtuse angle part 15 arranged upward and two narrow side parts 16 for connecting with the bent frame 2. The support longitudinal beam 14 includes a longitudinal main beam 17 and a longitudinal secondary beam 18. Among them, the longitudinal main beam 17 is an angular bent plate adapted to the obtuse angle part 15. The edge of the angular bent plate in the width direction is provided with main beam reinforcing ribs extending downward, and avoidance notches are arranged at the positions corresponding to the support cross beams 13 on the main beam reinforcing ribs. The longitudinal secondary beam 18 preferably uses a channel steel. During installation, the longitudinal main beam 17 is installed on the obtuse angle parts 15 of a plurality of support cross beams 13 arranged at intervals, and its two ends are fixed to the bent frame 2; the longitudinal secondary beam 18 is fixed between every two support cross beams 13 and its two ends are fixedly connected to the support cross beams 13. Two cover plates 3 are respectively fixedly attached to the two obtuse angle sides of the obtuse angle part 15 of the support cross beam 13 and the longitudinal main beam 17, so that the box-type transformer top cover 1 has an angular roof surface with a middle arch.

[0044] In order to facilitate the on-site installation of the box-type transformer top cover 1, lifting lugs 19 can be arranged on the upper side surface of the cover plate 3 to lift the box-type transformer top cover 1 at the installation site. At the position corresponding to the lifting lug 19 on the lower side surface of the cover plate 3, a lifting lug reinforcing rib 20 is fixedly arranged to ensure the connection strength between the lifting lug 19 and the box-type transformer top cover 1. In this embodiment, specifically four lifting lugs 19 are arranged and corresponding to the four corners of the box-type transformer top cover 1. In order to prevent the cover plate 3 from deforming under stress during lifting, cover plate reinforcing ribs 21 can be welded between the aforementioned support cross beams 13 on the lower side surface of the cover plate 3. To ensure strength, the lifting lug reinforcing rib 20 and the cover plate reinforcing rib 21 preferably use channel steels.

[0045] The scheme principle and embodiment of the box-type transformer top cover 1 of the present utility model:

[0046] The scheme principle and embodiment of the box-type transformer top cover 1 of the present utility model are the same as those of the box-type transformer top cover 1 described in the scheme principle and embodiment of the box-type substation of the present utility model, and will not be elaborated here.

[0047] The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model. The patent protection scope of the present utility model is subject to the claims. All equivalent structural changes made by using the description and drawings of the present utility model should be included in the protection scope of the present utility model by the same token.

Claims

1. A box transformer top cover, characterized in that: It includes a bending frame and a cover plate fixedly overlapped on the bending frame, the bending frame has an overlapping end for overlapping with a transformer box body; a first connecting plate is provided on the inner side of the frame corner of the bending frame, and a detachable connecting structure is provided on the first connecting plate for detachable connection with the fixed connecting structure on the transformer box body to realize detachable fixation of the bending frame and the transformer box body.

2. The box-type transformer top cover according to claim 1 is characterized in that: A second connecting plate is provided on the inner side of the frame edge of the bending frame, and a detachable connecting structure is provided on the second connecting plate for detachably connecting with the fixed connecting structure on the transformer box body to realize detachable fixation of the bending frame and the transformer box body.

3. The box-type transformer top cover according to claim 2 is characterized in that: The detachable connection structure comprises fastener through holes arranged on the first connection plate and the second connection plate, and fixing nuts fixedly arranged at the edge of the holes above the fastener through holes.

4. The box-type transformer top cover according to any one of claims 1 to 3, characterized in that: The first connecting plate includes a first main body arranged horizontally and a first reinforcing rib arranged vertically on the first main body.

5. The box-type transformer top cover according to claim 4 is characterized in that: The first main body is a trapezoidal plate-shaped structure, and the first reinforcing rib is a first bent edge formed by bending upward from the longest side of the trapezoidal plate-shaped structure.

6. The box-type transformer top cover according to claim 2 or 3, characterized in that: The second connecting plate includes a second main body arranged horizontally and a supporting portion arranged vertically on the second main body, and an upper end of the supporting portion is fixedly connected to the cover plate to support the cover plate.

7. The box-type transformer top cover according to claim 6 is characterized in that: The second main body and the support portion are integrally bent and formed, and second bending edges are arranged at the edges of both.

8. The box-type transformer top cover according to any one of claims 1 to 3, characterized in that: The box-type transformer top cover also includes supporting cross beams which are arranged in the bending enclosure at intervals along the length direction of the bending enclosure and supporting longitudinal beams which are fixed on the supporting cross beams and extend along the length direction of the enclosure.

9. The box-type transformer top cover according to any one of claims 1 to 3, characterized in that: The upper side of the cover plate is provided with a lifting ear, and the lower side of the cover plate is fixedly provided with a lifting ear reinforcement rib corresponding to the lifting ear.

10. A box-type substation, comprising a box-type substation body and a box-type substation top cover detachably fixedly mounted on the box-type substation body, characterized in that: A fixed connection structure is provided on the box body of the box transformer, and the box transformer top cover is the box transformer top cover according to any one of claims 1-9.

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