European-style box transformer substation convenient to overhaul

Abstract

The utility model relates to the technical field of European style box transformer substations, in particular to an European style box transformer substation convenient to overhaul, which comprises an European style box transformer substation box body, a plurality of overhaul ports are arranged on the side surface of the European style box transformer substation box body, an overhaul assembly is arranged on the European style box transformer substation box body and at the position of each overhaul port, and the overhaul assembly comprises a first mounting plate. A second mounting plate is hinged to the first mounting plate, an access door is detachably connected to the second mounting plate through bolts, a connecting ring is arranged on the outer side of the access door, a traction rope is wound on the traction part, and the movable end of the traction rope is fixedly connected with the connecting ring. According to the European-style box transformer substation convenient to overhaul, the overhaul assembly enables the overhaul door to be flexibly opened and closed, convenience is provided for entering the box body for overhaul and maintenance, complexity of overhaul operation is reduced, the overhaul door is unfolded upwards, the overhaul door can be prevented from hindering movement of workers, and therefore overhaul convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of European box-type substations, and particularly relates to a European box-type substation convenient for maintenance. Background Technique

[0002] The European box-type substation is a compact power equipment integrating transformers, high and low voltage switchgear, and protection devices, and is widely used in the power supply systems of urban power grids, industrial parks, and residential areas. Due to its modular design, small floor area, and fast installation, the European box-type substation plays an important role in modern power systems.

[0003] During the operation of the European box-type substation, due to the integration of various power equipment inside, regular maintenance and repair are inevitably required after long-term operation. The maintenance work includes equipment cleaning, component replacement, performance testing, etc., to ensure its stable performance and safe and reliable operation. These operations are crucial for ensuring the continuous and stable operation of the power system.

[0004] The existing European box-type substations usually adopt a single-door or double-door structure in design, and the maintenance doors are located outside the equipment chambers of the box body. Although this design provides a certain degree of access to the inside of the box body, during actual maintenance, when multiple single doors or double doors are opened, the open doors will form obstacles, resulting in the need for staff to bypass the obstruction when moving back and forth between multiple equipment chambers of the European box-type substation. This not only increases the difficulty of maintenance operations but also may pose safety hazards. In view of this, we propose a European box-type substation convenient for maintenance. Content of the Utility Model

[0005] The purpose of the utility model is to provide a European box-type substation convenient for maintenance to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A European box-type substation convenient for maintenance includes a European box-type substation box body, which is the main body of the entire device, integrating transformers, high and low voltage switchgear, and protection devices inside, providing mechanical protection and electrical isolation. A plurality of maintenance openings are provided on the side of the European box-type substation box body, located on the side of the box body, providing a passage for maintenance personnel to enter the inside of the box body for maintenance and repair. At the position of each maintenance opening on the European box-type substation box body, a maintenance component is provided, which is used for the installation, support, and operation of the maintenance door as a whole;

[0008] The maintenance component includes a first mounting plate installed on the side of the European-style box transformer housing, serving as the hinged base of the second mounting plate and providing a fulcrum for the opening and closing of the maintenance door. The first mounting plate is hinged with a second mounting plate, which is hinged on the first mounting plate to enable the maintenance door to be opened and closed flexibly. The second mounting plate is detachably connected with a maintenance door through bolts to provide closure and opening for the maintenance opening. A connecting ring is provided at a position on the outer side of the maintenance door and near the middle of the bottom edge for connecting a traction rope to achieve the opening and closing control of the maintenance door;

[0009] The maintenance component further includes a traction member, which is generally used for traction and control of the opening and closing of the maintenance door. The traction member includes a fixed bottom plate installed on the top of the European-style box transformer housing, serving as the base of the traction member and providing a fixed and installation position. Two symmetrically arranged fixed vertical plates are provided on the top of the fixed bottom plate to support the wire winding roller and provide a rotation fulcrum for it. A wire winding roller is rotatably connected between the two fixed vertical plates for winding and releasing the traction rope, and the opening and closing control of the maintenance door is realized through the rotation of the wire winding roller. A traction rope is wound around the wire winding roller, one end of the traction rope is fixed on the connecting ring, and the other end is wound around the wire winding roller. The movable end of the traction rope is fixedly connected with the connecting ring;

[0010] A driving box is provided on the outer side of one of the fixed vertical plates. A rotating shaft is rotatably connected between the left and right sides of the inner wall of the driving box. One end of the rotating shaft is coaxially connected with one end of the wire winding roller. A worm gear is provided on the rotating shaft. The rotating shaft connects the wire winding roller and the worm gear and rotates under the action of the motor to realize the rotation of the wire winding roller. A worm is rotatably connected between the front and rear sides of the inner wall of the driving box. The worm is in meshing transmission with the worm gear. A motor for driving the worm to rotate is provided on the rear side of the driving box. The motor is powered by an external power supply to work. The motor drives the worm to rotate, so that the worm drives the worm gear to rotate, and further the worm gear drives the rotating shaft and the wire winding roller to rotate synchronously.

[0011] Preferably, four support columns arranged in a matrix are provided on the top of the European-style box transformer housing. The tops of the four support columns are jointly connected with a ceiling to provide support and stability for the structure above the housing and play a role in shading and rain protection at the same time.

[0012] Preferably, the first mounting plate is detachably connected to the side of the European-style box transformer housing through bolts, and the first mounting plate is close to the top of the maintenance opening.

[0013] Preferably, positioning grooves are provided on both sides of the side of the European-style box transformer body near the upper middle part of the maintenance opening. Bar-shaped storage grooves are provided on both sides of the inner side of the maintenance door near the upper middle part for storing support rods. A support rod is rotatably connected in the bar-shaped storage groove. When the maintenance door is horizontally arranged, the bottom end of the support rod is located in the positioning groove. The positioning groove is used to cooperate with the support rod to provide positioning and support when the maintenance door is horizontally unfolded, prevent the maintenance door from accidentally rotating downward, and ensure the safety of maintenance personnel.

[0014] Preferably, a plurality of mounting holes are provided at the top of the fixed bottom plate, and the fixed bottom plate is detachably connected to the top of the European-style box transformer body by bolts.

[0015] Preferably, a protective shell is provided at the rear side of the drive box, and the motor is located inside the protective shell to protect the motor, prevent external dust and impurities from entering, and ensure the safe operation of the equipment.

[0016] Preferably, a U-shaped frame is provided in the middle of the front side of the top of the fixed bottom plate. A wire guide roller is rotatably connected between the left and right sides of the inner wall of the U-shaped frame at the middle position. The towing rope bypasses the wire guide roller to provide guidance and support for the towing rope and make the towing rope slide smoothly.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. For the European-style box transformer convenient for maintenance, the maintenance component enables the maintenance door to be opened and closed flexibly, providing convenience for entering the interior of the box for maintenance and reducing the complexity of maintenance operations. Moreover, the maintenance door is unfolded upward, which can avoid the maintenance door from obstructing the movement of workers, thereby improving the convenience of maintenance.

[0019] 2. For the European-style box transformer convenient for maintenance, support rods and positioning grooves are added to the design of the maintenance door. When the maintenance door is horizontally unfolded, the bottom end of the support rod is located in the positioning groove to provide support and fixation for the door, prevent the door from accidentally sagging or rotating, and ensure the safety of maintenance personnel.

[0020] 3. For the European-style box transformer convenient for maintenance, a traction member is introduced. The motor drives the worm and the worm gear to drive the rotating shaft and the winding roller to rotate synchronously, realizing the automatic opening and closing control of the maintenance door. This design not only improves the convenience of operation but also reduces the error and labor intensity of manual operation.

[0021] 4. For the European-style box transformer convenient for maintenance, through the design of the U-shaped frame and the wire guide roller, the towing rope can slide smoothly, providing guidance and support for the towing rope, making the towing operation smoother, and reducing the possibility of wear and jamming of the towing rope. Description of the Drawings

[0022] Figure 1 This is the schematic diagram of the overall first perspective structure of the present utility model;

[0023] Figure 2 This is the schematic diagram of the overall second perspective structure of the present utility model;

[0024] Figure 3 This is one of the schematic diagrams of the partial structure of the present utility model;

[0025] Figure 4 This is the second of the schematic diagrams of the partial structure of the present utility model;

[0026] Figure 5 This is the schematic diagram of the partial structure of the maintenance component in the present utility model;

[0027] Figure 6 This is the schematic diagram of the maintenance door structure in the present utility model;

[0028] Figure 7 This is the schematic diagram of the traction component in the present utility model;

[0029] In the figure: 1, European box transformer housing; 10, maintenance opening; 11, positioning groove; 12, support column; 2, maintenance component; 20, first mounting plate; 21, second mounting plate; 22, maintenance door; 220, connecting ring; 221, strip-shaped storage groove; 222, support rod; 23, traction component; 230, fixed bottom plate; 231, fixed vertical plate; 232, wire winding roller; 233, drive box; 234, rotating shaft; 235, worm gear; 236, worm; 237, motor; 238, protective shell; 239, U-shaped frame; 2390, wire guide roller; 24, traction rope; 3, ceiling. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0032] Please refer to Figures 1-7 , the present utility model provides a technical solution:

[0033] A European-style box transformer convenient for maintenance, including a European-style box transformer body 1, which is the main body of the entire device and integrates a transformer, high and low voltage switchgear, and protection devices inside, providing mechanical protection and electrical isolation. A plurality of maintenance openings 10 are provided on the side of the European-style box transformer body 1, located on the side of the body 1, providing a passage for maintenance personnel to enter the inside of the box for maintenance and repair. At the position of each maintenance opening 10 on the European-style box transformer body 1, a maintenance component 2 is provided, which is used for the installation, support, and operation of the maintenance door 22 as a whole;

[0034] The maintenance component 2 includes a first mounting plate 20 mounted on the side of the European-style box transformer body 1, which is the hinged base of the second mounting plate 21 and provides a fulcrum for the opening and closing of the maintenance door 22. The first mounting plate 20 is hinged with a second mounting plate 21, which is hinged on the first mounting plate 20, enabling the maintenance door 22 to be opened and closed flexibly. The second mounting plate 21 is detachably connected with the maintenance door 22 by bolts, providing closure and opening for the maintenance opening 10. A connecting ring 220 is provided at a position on the outer side of the maintenance door 22 and near the middle of the bottom edge, which is used to connect the traction rope 24 to realize the opening and closing control of the maintenance door 22. A lock that can be switched with a key is provided on the maintenance door 22 to prevent outsiders from privately opening the maintenance door 22;

[0035] The maintenance component 2 further includes a traction member 23, which is used to traction and control the opening and closing of the maintenance door 22 as a whole. The traction member 23 includes a fixed bottom plate 230 installed on the top of the European-style box transformer body 1, which serves as the base of the traction member and provides a fixed and installation position. On the top of the fixed bottom plate 230, there are two fixed vertical plates 231 arranged symmetrically left and right, which support the winding roller 232 and provide a rotation fulcrum for it. A winding roller 232 is rotatably connected between the two fixed vertical plates 231 for winding and releasing the traction rope 24. By rotating the winding roller, the opening and closing control of the maintenance door 22 is realized. A traction rope 24 is wound around the winding roller 232. One end of the traction rope 24 is fixed to the connecting ring 220, and the other end is wound around the winding roller 232. The movable end of the traction rope 24 is fixedly connected to the connecting ring 220;

[0036] On the outside of one of the fixed vertical plates 231, there is a drive box 233. A rotating shaft 234 is rotatably connected between the left and right sides of the inner wall of the drive box 233. One end of the rotating shaft 234 is coaxially connected to one end of the winding roller 232. A worm gear 235 is provided on the rotating shaft 234. The rotating shaft 234 connects the winding roller 232 and the worm gear 235 and rotates under the action of the motor 237 to realize the rotation of the winding roller 232. A worm 236 is rotatably connected between the front and back sides of the inner wall of the drive box 233. The worm 236 is meshed with the worm gear 235 for transmission. A motor 237 for driving the worm 236 to rotate is provided on the rear side of the drive box 233. The motor 237 is powered by an external power supply. The motor 237 drives the worm 236 to rotate, so that the worm 236 drives the worm gear 235 to rotate, and then the worm gear 235 drives the rotating shaft 234 and the winding roller 232 to rotate synchronously.

[0037] In this embodiment, four support columns 12 arranged in a matrix are provided on the top of the European-style box transformer body 1. The tops of the four support columns 12 are jointly connected with a ceiling 3, which provides support and stability for the structure above the box body and plays a role of shading and rain protection at the same time.

[0038] Specifically, the first mounting plate 20 is detachably connected to the side of the European-style box transformer body 1 by bolts, and the first mounting plate 20 is close to the top of the maintenance opening 10.

[0039] Furthermore, positioning grooves 11 are opened at the positions of the middle upper parts of both sides of the European-style box transformer body 1 close to the maintenance opening 10. Strip-shaped storage grooves 221 are opened at the positions of the middle upper parts of both sides of the inner side of the maintenance door 22 for storing the support rods 222. A support rod 222 is rotatably connected in the strip-shaped storage groove 221. When the maintenance door 22 is horizontally arranged, the bottom end of the support rod 222 is located in the positioning groove 11. The positioning groove 11 is used to cooperate with the support rod 222 to provide positioning and support when the maintenance door 22 is horizontally unfolded, prevent the maintenance door 22 from accidentally rotating downward, and ensure the safety of maintenance personnel.

[0040] Furthermore, a plurality of mounting holes are formed in the top of the fixed bottom plate 230, and the fixed bottom plate 230 is detachably connected to the top of the European-style box transformer housing 1 by bolts.

[0041] Furthermore, a protective shell 238 is provided at the rear side of the driving box 233, and the motor 237 is located inside the protective shell 238 to protect the motor 237, prevent external dust and impurities from entering, and ensure the safe operation of the equipment.

[0042] Furthermore, a U-shaped frame 239 is provided in the middle of the front side of the top of the fixed bottom plate 230. A wire roller 2390 is rotatably connected between the left and right sides of the inner wall of the U-shaped frame 239 and at the middle position. The towing rope 24 bypasses the wire roller 2390 to provide guiding and supporting for the towing rope 24, so that the towing rope 24 slides smoothly.

[0043] When the European-style box transformer for easy maintenance in this embodiment is in use, first, confirm that the power supply of the European-style box transformer housing 1 has been disconnected, and perform necessary safety inspections to ensure that the European-style box transformer housing 1 and all its external components are intact. Locate the part to be repaired, select the corresponding maintenance port 10, start the motor 237 in the maintenance component 2 corresponding to the maintenance port 10, so that it drives the worm 236 to rotate, drives the rotating shaft 234 and the winding roller 232 to rotate synchronously through the worm gear 235. When the winding roller 232 starts to rotate, the towing rope 24 will be tightened, towing the connecting ring 220, thereby pulling and opening the maintenance door 22. When the maintenance door 22 is fully horizontally unfolded, the maintenance personnel will turn out the support rod 222 in the strip-shaped storage groove 221 and insert it into the positioning groove 11 to provide additional support to ensure that the maintenance door 22 is stably fixed and will not sag or accidentally rotate. Then the maintenance personnel can enter the inside of the European-style box transformer housing 1 through the maintenance port 10 to perform operations such as equipment cleaning, component replacement, and performance testing. During the maintenance process, the ceiling 3 provides sunshade and rain protection functions to ensure that the maintenance personnel can operate safely under various weather conditions. After the maintenance is completed, the maintenance personnel will remove the bottom end of the support rod 222 from the positioning groove 11, and then start the motor 237 to rotate the worm 236 in the reverse direction, drive the rotating shaft 234 and the winding roller 232 to rotate in the reverse direction through the worm gear 235. At this time, the winding roller 232 will gradually release the towing rope 24, the towing rope 24 will loosen, and the maintenance door 22 will be gradually closed. After the maintenance door 22 is closed in place, confirm that all maintenance tools have been removed and there are no leftovers on the site. Confirm that all maintenance ports 10 have been closed and fixed to ensure that the European-style box transformer housing 1 is intact, restore the power supply, check the operation of the equipment, and leave the site after confirming normal.

[0044] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed for the present utility model is defined by the appended claims and their equivalents.

Claims

1. A European-style box-type transformer that is easy to maintain, comprising a European-style box-type transformer box (1), characterized in that: The European-style box transformer housing (1) is provided with a plurality of inspection openings (10) on the side thereof. An inspection assembly (2) is provided on the European-style box transformer housing (1) and at the position of each inspection opening (10). The inspection assembly (2) comprises a first mounting plate (20) mounted on the side of the European-style box transformer housing (1). The first mounting plate (20) is hingedly connected to a second mounting plate (21). The second mounting plate (21) is detachably connected to an inspection door (22) by bolts. A connecting ring (220) is provided on the outer side of the inspection door (22) and near the middle of the bottom edge. The inspection assembly (2) further comprises a traction member (23). The traction member (23) comprises a fixed bottom plate (230) mounted on the top of the European-style box transformer housing (1). Two fixed vertical plates (231) are symmetrically arranged on the top of the fixed bottom plate (230). A winding roller (232) is rotatably connected between the two fixed vertical plates (231), a traction rope (24) is wound around the winding roller (232), and a movable end of the traction rope (24) is fixedly connected to a connecting ring (220). A driving box (233) is provided on the outer side of one of the fixed vertical plates (231), a rotating shaft (234) is rotatably connected between the left and right sides of the inner wall of the driving box (233), one end of the rotating shaft (234) is coaxially connected to one end of the winding roller (232), a worm gear (235) is provided on the rotating shaft (234), a worm (236) is rotatably connected between the front and rear sides of the inner wall of the driving box (233), the worm gear (236) is meshed with the worm gear (235) for transmission, and a motor (237) for driving the worm gear (236) to rotate is provided on the rear side of the driving box (233).

2. The European-style box-type transformer easy to maintain according to claim 1 is characterized in that: The top of the European-style box-type transformer box (1) is provided with four support columns (12) arranged in a matrix, and the top ends of the four support columns (12) are commonly connected to a ceiling (3).

3. The European-style box-type transformer for easy maintenance according to claim 1 is characterized in that: The first mounting plate (20) is detachably connected to the side of the European-style box-type transformer housing (1) by means of bolts, and the first mounting plate (20) is close to the top of the inspection opening (10).

4. The European-style box-type transformer for easy maintenance according to claim 1 is characterized in that: Positioning grooves (11) are provided on the sides of the European-style transformer housing (1) and near the middle and upper parts of both sides of the inspection opening (10); strip-shaped storage grooves (221) are provided on the inner sides of the inspection door (22) and near the middle and upper parts of both sides; a support rod (222) is rotatably connected in the strip-shaped storage groove (221); when the inspection door (22) is arranged horizontally, the bottom end of the support rod (222) is located in the positioning groove (11).

5. The European-style box-type transformer easy to maintain according to claim 1 is characterized in that: A plurality of mounting holes are provided on the top of the fixed bottom plate (230), and the fixed bottom plate (230) is detachably connected to the top of the European-style box-type transformer housing (1) by means of bolts.

6. The European-style box-type transformer easy to maintain according to claim 1 is characterized in that: A protective shell (238) is provided on the rear side of the drive box (233), and the motor (237) is located inside the protective shell (238).

7. The European-style box-type transformer for easy maintenance according to claim 1 is characterized in that: A U-shaped frame (239) is provided in the middle of the top front side of the fixed bottom plate (230), and a conductor roller (2390) is rotatably connected to a position between the left and right sides of the inner wall of the U-shaped frame (239) and located in the middle, and the traction rope (24) is passed around the conductor roller (2390).

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