Lightweight box-type substation combined cabinet body

Abstract

This utility model relates to the field of prefabricated substation technology and discloses a lightweight prefabricated substation cabinet, including a prefabricated substation body, a door, and a fixed shaft. The front side of the prefabricated substation body has a door opening, and the fixed shaft is fixedly installed inside the door opening. The door is rotatably mounted on the fixed shaft. The cabinet also includes: a thickening rod fixedly installed on the fixed shaft; a snap-fit ​​assembly located inside the door, contacting and elastically snapping into the thickening rod; a locking assembly located inside the door, abutting against the snap-fit ​​assembly to lock it; and two plug-in assemblies symmetrically arranged on the inner side of the door and respectively plugged into the top and bottom inner walls of the door opening, both slidably connected to the locking assembly. This utility model effectively prevents the door from opening and closing automatically due to wind or uneven ground conditions. Furthermore, the door and body are made of aluminum alloy, achieving lightweight design, and the door exhibits high stability when closed.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated substation technology, specifically to a lightweight prefabricated substation modular cabinet. Background Technology

[0002] In the final stage of power transmission and distribution systems, prefabricated substations are widely used in urban residential communities, industrial parks, and municipal infrastructure due to their advantages such as high integration, small footprint, and short construction period. Currently, most mainstream prefabricated substations on the market use traditional hinges or ordinary hinge structures to connect the door to the main body. This type of connection structure, due to its simple design and low manufacturing cost, has become the preferred solution for most manufacturers and holds a dominant position in the industry, especially in small and medium-sized prefabricated substation products.

[0003] However, the inherent defects of traditional hinges or ordinary hinges lead to significant shortcomings in the actual use of the enclosure doors. On the one hand, the lack of an effective self-locking mechanism after opening makes the doors susceptible to wind swaying in outdoor environments. This can cause collisions with the enclosure, damaging the coating and deforming the structure, and may even result in sudden closure that could injure operators, posing a significant safety hazard. On the other hand, in installation scenarios with uneven ground, the combined effect of the door's own weight and the ground's tilt angle can cause the door to open and close on its own. This severely impacts the efficiency of maintenance personnel in inspecting and maintaining the equipment inside the prefabricated substation. Repeated opening and closing of the door can even lead to moisture and dust accumulation on internal components, shortening equipment lifespan and increasing the maintenance costs of the power system. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of this utility model is to provide a lightweight box-type substation combined cabinet that can effectively prevent the cabinet door from opening and closing on its own due to wind or uneven ground. At the same time, the cabinet door and the body are made of aluminum alloy to achieve lightweighting, and the cabinet door has high stability when closed.

[0005] This utility model provides the following technical solution: a lightweight prefabricated substation cabinet, including a prefabricated substation body, a door, and a fixed shaft. The front side of the prefabricated substation body has a door opening, the fixed shaft is fixedly installed inside the door opening, and the door is rotatably mounted on the fixed shaft. The cabinet also includes: A thickened rod is fixedly mounted on a fixed shaft. The snap-fit ​​component is located on the inside of the door. The snap-fit ​​component contacts the thickened rod and can be elastically snapped into the thickened rod. A locking component is located inside the door. The locking component can abut against the snap-fit ​​component to lock the snap-fit ​​component. Two plug-in components are symmetrically arranged on the inside of the door and are plugged into the top and bottom inner walls of the door opening, respectively. Both plug-in components are slidably connected to the locking component. The locking component can drive the two plug-in components to move closer to each other to unlock the door.

[0006] As a preferred embodiment of this utility model, the snap-fit ​​assembly includes a fixed block, a slider, snap teeth, two first round rods, a connecting plate, and a spring. The fixed block is fixedly installed on the inner side of the door, and one end of the fixed block is in contact with the fixed shaft. A groove is provided in the fixed block, and the slider is slidably installed in the groove and in contact with the fixed shaft. The snap teeth are fixedly installed on one end of the slider. Both first round rods are fixedly installed on the other end of the slider and slide through the fixed block. The connecting plate is fixedly installed between the two first round rods. The spring is fixedly installed between the connecting plate and the fixed block. Several snap grooves are equidistantly provided on the circumference of the fixed shaft, and the snap teeth snap into the snap grooves.

[0007] As a preferred embodiment of this utility model, the snap-fit ​​assembly further includes a second round rod and two support sleeves. The second round rod is fixedly installed at one end of the connecting plate, and the two support sleeves are both fixedly installed on the inner side of the door. The second round rod is slidably installed between the two support sleeves.

[0008] As a preferred embodiment of this utility model, the locking assembly includes a rotating rod, a circular plate, and a handle. The rotating rod is rotatably installed inside the door, the circular plate is fixedly installed on the rotating rod, one end of the second circular rod has a groove, the circular plate is located in the groove, the circular plate has a notch, and the handle is fixedly installed on the rotating rod.

[0009] As a preferred embodiment of this utility model, the locking assembly further includes a first fixing plate, a second fixing plate, and a bending spring. The first fixing plate is fixedly installed on the inner wall of the door, the second fixing plate is fixedly installed on the circular plate, and the bending spring is fixedly installed between the first fixing plate and the second fixing plate.

[0010] As a preferred embodiment of this utility model, the plug-in assembly includes a plug-in plate and a strip block. The strip block is fixedly installed on the inner side of the door. The plug-in plate has a strip hole. The plug-in plate is slidably installed on the strip block through the strip hole, and the two plug-in plates slide through the top and bottom of the door respectively. The top inner wall and bottom inner wall of the door opening are provided with slots, and the plug-in plate is slidably inserted into the slot.

[0011] As a preferred embodiment of this utility model, the plug-in assembly further includes a fixing rod, which is fixedly installed on one side of the plug-in plate. Two arc-shaped grooves are equidistantly formed on the circumference of the circular plate, and the fixing rod is slidably installed in the arc-shaped grooves.

[0012] As a preferred embodiment of the present invention, the locking assembly further includes an arc-shaped rod, which is fixedly installed at the bottom of the second fixed plate and slides through the first fixed plate.

[0013] The technical effects and advantages of this utility model are as follows: In use, rotating the handle clockwise causes the circular plate to rotate clockwise, stretching the spring and causing the two insert plates to disengage from their respective slots. At this point, the circular plate rotates out of the groove and causes the notch to rotate until it aligns with the second circular rod, releasing the restriction on the second circular rod and unlocking the door. Pulling the handle outward then causes the door to rotate and open. As the door rotates, it causes the fixing block, slider, and locking teeth to rotate around the fixed axis. The locking teeth repeatedly disengage and engage in the slots under the action of the spring, allowing the door to open gradually in 15-degree increments. After opening the door to a suitable angle and ensuring that the locking teeth are engaged in the corresponding slots, release the handle. The spring will contract and cause the second fixing plate and the circular plate to rotate counterclockwise, causing the circular plate to rotate until it contacts the groove, thus relocking the second circular rod and temporarily locking the door to prevent it from opening and closing on its own due to wind or uneven ground. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the slot structure of this utility model; Figure 3 This is a schematic diagram of the thickened rod structure of this utility model; Figure 4 This is a schematic diagram of the door structure of this utility model; Figure 5 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model; Figure 6 This is a schematic diagram of the locking component structure of this utility model; Figure 7 This is a schematic diagram of the plug-in assembly structure of this utility model.

[0015] In the diagram: 1. Main body of the prefabricated substation; 2. Doorway; 3. Box door; 4. Fixed shaft; 5. Thickened rod; 6. Slot; 7. Slot; 8. Snap-fit ​​assembly; 801. Fixed block; 802. Slide groove; 803. Slider; 804. Snap tooth; 805. First round rod; 806. Connecting plate; 807. Spring; 808. Second round rod; 809. Support sleeve; 810. Groove; 9. Locking assembly; 901. Rotating rod; 902. Round plate; 903. Notch; 904. Arc groove; 905. First fixed plate; 906. Second fixed plate; 907. Bending spring; 908. Arc rod; 909. Handle; 10. Plug-in assembly; 1001. Plug-in plate; 1002. Fixed rod; 1003. Strip block; 1004. Strip hole. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figures 1-7 As shown, a lightweight prefabricated substation cabinet includes a prefabricated substation body 1, a door 3, and a fixed shaft 4. The front side of the prefabricated substation body 1 has a door opening 2, the fixed shaft 4 is fixedly installed inside the door opening 2, and the door 3 is rotatably mounted on the fixed shaft 4. The cabinet also includes: Thickened rod 5 is fixedly installed on fixed shaft 4; The snap-fit ​​component 8 is located on the inside of the door 3. The snap-fit ​​component 8 contacts the thickened rod 5 and can be elastically snapped into the thickened rod 5. Locking component 9 is located inside the door 3. Locking component 9 can abut against locking component 8 to lock locking component 8. Two plug-in components 10 are symmetrically arranged on the inside of the door 3 and are respectively plugged into the top inner wall and bottom inner wall of the door opening 2. Both plug-in components 10 are slidably connected to the locking component 9. The locking component 9 can drive the two plug-in components 10 to move closer to each other to unlock the door 3.

[0018] In this embodiment, both the main body 1 and the door 3 of the box-type substation are made of aluminum alloy, which is lightweight and has a lightweight property. When the door 3 is opened, the locking component 9 is rotated counterclockwise, which causes the two plug-in components 10 to move closer to each other. The locking component 9 will move away from the latching component 8 when rotated counterclockwise, thus unlocking the door 3. The latching component 8 can open the door 3 at a specific angle. After the door 3 is opened to a suitable angle, the locking component 9 is released, and the locking component 9 will automatically reset to contact the latching component 8, thereby locking the latching component 8 and temporarily locking the door 3 at a specific angle.

[0019] The snap-fit ​​assembly 8 includes a fixing block 801, a slider 803, a snap-fit ​​tooth 804, two first round rods 805, a connecting plate 806, and a spring 807. The fixing block 801 is fixedly installed on the inside of the door 3, and one end of the fixing block 801 is in contact with the fixing shaft 4. A groove 802 is provided in the fixing block 801. The slider 803 is slidably installed in the groove 802 and is in contact with the fixing shaft 4. The snap-fit ​​tooth 804 is fixedly installed on one end of the slider 803. The two first round rods 805 are both fixedly installed on the other end of the slider 803 and both first round rods 805 slide through the fixing block 801. The connecting plate 806 is fixedly installed between the two first round rods 805. The spring 807 is fixedly installed between the connecting plate 806 and the fixing block 801. Several snap-fit ​​grooves 6 are equidistantly provided on the circumference of the fixing shaft 4, and the snap-fit ​​tooth 804 snaps into the snap-fit ​​grooves 6.

[0020] In this embodiment, there are six slots 6, and the angle between each slot 6 is 15 degrees. The door 3 can be opened to five different positions in 15-degree increments and can be temporarily locked.

[0021] The snap-fit ​​assembly 8 also includes a second round rod 808 and two support sleeves 809. The second round rod 808 is fixedly installed at one end of the connecting plate 806, and the two support sleeves 809 are both fixedly installed on the inner side of the door 3. The second round rod 808 is slidably installed between the two support sleeves 809. The locking assembly 9 includes a rotating rod 901, a round plate 902, and a handle 909. The rotating rod 901 is rotatably installed inside the door 3, and the round plate 902 is fixedly installed on the rotating rod 901. A groove 810 is provided at one end of the second round rod 808, and the round plate 902 is located in the groove 810. A notch 903 is provided on the round plate 902, and the handle 909 is fixedly installed on the rotating rod 901.

[0022] In this embodiment, the circular plate 902 contacts the inner wall of the groove 810, which can limit the second circular rod 808, the connecting plate 806, the two first circular rods 805, the slider 803 and the locking tooth 804, thereby locking the box door 3.

[0023] The locking assembly 9 also includes a first fixing plate 905, a second fixing plate 906, and a bending spring 907. The first fixing plate 905 is fixedly installed on the inner wall of the door 3, the second fixing plate 906 is fixedly installed on the circular plate 902, and the bending spring 907 is fixedly installed between the first fixing plate 905 and the second fixing plate 906.

[0024] In this embodiment, in the initial state, the bending spring 907 is in a contracted state, providing a downward pulling force to the second fixing plate 906, thereby keeping the circular plate 902 in contact with the inner wall of the groove 810.

[0025] The plug-in assembly 10 includes a plug-in plate 1001 and a strip block 1003. The strip block 1003 is fixedly installed on the inner side of the door 3. The plug-in plate 1001 has a strip hole 1004. The plug-in plate 1001 is slidably installed on the strip block 1003 through the strip hole 1004. The two plug-in plates 1001 slide through the top and bottom of the door 3 respectively. The top inner wall and bottom inner wall of the door opening 2 are provided with slots 7. The plug-in plate 1001 is slidably inserted into the slot 7.

[0026] In this embodiment, the plug-in plate 1001 is plugged into the slot 7 to improve the stability of the cabinet door 3 when it is closed.

[0027] The plug-in assembly 10 also includes a fixing rod 1002, which is fixedly installed on one side of the plug-in plate 1001. Two arc-shaped grooves 904 are equidistantly provided on the circumference of the circular plate 902, and the fixing rod 1002 is slidably installed in the arc-shaped grooves 904.

[0028] In this embodiment, when the door 3 is opened, the handle 909 is rotated clockwise, which causes the rotating rod 901, the circular plate 902 and the second fixing plate 906 to rotate clockwise. The clockwise rotation of the second fixing plate 906 will stretch the bending spring 907. When the circular plate 902 rotates clockwise, it can push the two fixing rods 1002 through the inner walls of the two arc-shaped grooves 904, causing the two fixing rods 1002 and the two plug-in plates 1001 to slide closer to each other, so that the two plug-in plates 1001 can be disengaged from the two slots 7 respectively.

[0029] The locking assembly 9 also includes an arc-shaped rod 908, which is fixedly installed at the bottom of the second fixing plate 906 and slides through the first fixing plate 905.

[0030] In this embodiment, the curved rod 908 provides support for the bending spring 907, preventing the bending spring 907 from deforming during stretching or contraction.

[0031] Working principle: When opening the door 3, rotating the handle 909 clockwise causes the rotating rod 901, the circular plate 902, and the second fixing plate 906 to rotate clockwise. The clockwise rotation of the second fixing plate 906 stretches the bending spring 907. When the circular plate 902 rotates clockwise, it pushes the two fixing rods 1002 through the inner walls of the two arc-shaped grooves 904, causing the two fixing rods 1002 and the two plug-in plates 1001 to slide closer to each other. This allows the two plug-in plates 1001 to disengage from the two slots 7. At this time, the circular plate 902 will rotate and disengage from the groove 810, causing the notch 903 to rotate to correspond with the second circular rod 808, thereby unlocking the second circular rod 808, the connecting plate 806, the two first circular rods 805, and the slider 803, thus unlocking the door 3. At this time, pulling the handle 909 outward... 9. The door 3 is rotated to open. When the door 3 rotates, the fixing block 801, the slider 803, and the locking tooth 804 rotate around the fixing shaft 4. When the fixing block 801 and the slider 803 rotate, the locking tooth 804 will repeatedly disengage and engage in the slot 6 under the action of the spring 807, so that the door 3 opens gradually in 15-degree increments. After opening the door 3 to a suitable angle and ensuring that the locking tooth 804 is engaged in the corresponding slot 6, release the handle 909. At this time, the bending spring 907 will retract and drive the second fixing plate 906 and the round plate 902 to rotate counterclockwise, so that the round plate 902 rotates to contact the groove 810, thereby locking the second round rod 808, the connecting plate 806, the two first round rods 805, the slider 803, and the locking tooth 804, thus temporarily locking the door 3.

Claims

1. A lightweight prefabricated substation cabinet, comprising a prefabricated substation body (1), a door (3), and a fixed shaft (4), wherein a door opening (2) is provided on the front side of the prefabricated substation body (1), the fixed shaft (4) is fixedly installed in the door opening (2), and the door (3) is rotatably installed on the fixed shaft (4), characterized in that: Also includes: The thickened rod (5) is fixedly installed on the fixed shaft (4); The snap-fit ​​assembly (8) is located on the inside of the door (3). The snap-fit ​​assembly (8) is in contact with the thickened rod (5) and can be elastically snapped into the thickened rod (5). The locking component (9) is located inside the door (3). The locking component (9) can abut against the snap-fit ​​component (8) to lock the snap-fit ​​component (8). Two plug-in components (10) are symmetrically arranged on the inside of the door (3) and plugged into the top and bottom inner walls of the door opening (2) respectively. Both plug-in components (10) are slidably connected to the locking component (9). The locking component (9) can drive the two plug-in components (10) to move closer to each other to unlock the door (3).

2. The lightweight prefabricated substation cabinet according to claim 1, characterized in that: The snap-fit ​​assembly (8) includes a fixing block (801), a slider (803), snap teeth (804), two first round rods (805), a connecting plate (806), and a spring (807). The fixing block (801) is fixedly installed on the inside of the door (3), and one end of the fixing block (801) is in contact with the fixing shaft (4). A groove (802) is provided in the fixing block (801), and the slider (803) is slidably installed in the groove (802), and the slider (803) is in contact with the fixing shaft (4). The snap teeth (804) are connected to the door (3). 04) Fixedly installed at one end of the slider (803), the two first round rods (805) are fixedly installed at the other end of the slider (803) and the two first round rods (805) slide through the fixed block (801), the connecting plate (806) is fixedly installed between the two first round rods (805), the spring (807) is fixedly installed between the connecting plate (806) and the fixed block (801), and a number of slots (6) are equidistantly opened on the circumference of the fixed shaft (4), and the slot teeth (804) are engaged in the slots (6).

3. The lightweight prefabricated substation cabinet according to claim 1, characterized in that: The snap-fit ​​assembly (8) also includes a second round rod (808) and two support sleeves (809). The second round rod (808) is fixedly installed at one end of the connecting plate (806), and the two support sleeves (809) are both fixedly installed on the inside of the door (3). The second round rod (808) is slidably installed between the two support sleeves (809).

4. A lightweight prefabricated substation cabinet according to claim 1, characterized in that: The locking assembly (9) includes a rotating rod (901), a circular plate (902), and a handle (909). The rotating rod (901) is rotatably installed inside the door (3). The circular plate (902) is fixedly installed on the rotating rod (901). A groove (810) is provided at one end of the second circular rod (808). The circular plate (902) is located in the groove (810). A notch (903) is provided on the circular plate (902). The handle (909) is fixedly installed on the rotating rod (901).

5. A lightweight prefabricated substation cabinet according to claim 1, characterized in that: The locking assembly (9) also includes a first fixing plate (905), a second fixing plate (906), and a bending spring (907). The first fixing plate (905) is fixedly installed on the inner wall of the door (3), the second fixing plate (906) is fixedly installed on the round plate (902), and the bending spring (907) is fixedly installed between the first fixing plate (905) and the second fixing plate (906).

6. A lightweight prefabricated substation cabinet according to claim 1, characterized in that: The plug-in assembly (10) includes a plug-in plate (1001) and a strip block (1003). The strip block (1003) is fixedly installed on the inside of the door (3). The plug-in plate (1001) has a strip hole (1004). The plug-in plate (1001) is slidably installed on the strip block (1003) through the strip hole (1004). The two plug-in plates (1001) slide through the top and bottom of the door (3) respectively. The top inner wall and bottom inner wall of the door opening (2) are provided with slots (7). The plug-in plate (1001) is slidably inserted into the slot (7).

7. A lightweight prefabricated substation cabinet according to claim 1, characterized in that: The plug-in assembly (10) also includes a fixing rod (1002), which is fixedly installed on one side of the plug-in plate (1001). Two arc-shaped grooves (904) are equidistantly opened on the circumference of the circular plate (902), and the fixing rod (1002) is slidably installed in the arc-shaped grooves (904).

8. A lightweight prefabricated substation cabinet according to claim 1, characterized in that: The locking assembly (9) also includes an arc rod (908), which is fixedly installed at the bottom of the second fixing plate (906) and slides through the first fixing plate (905).

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