Anti-deformation high-low voltage power distribution cabinet sheet metal cabinet body structure

Abstract

This invention relates to the field of power distribution cabinet technology, specifically a deformation-resistant high and low voltage power distribution cabinet sheet metal cabinet structure. The structure includes a top plate, a rear upper cover fixedly installed on the rear side of the top plate, a rear lower cover fixedly installed at the bottom of the rear upper cover, and two cabinet connecting mechanisms symmetrically installed on the rear side of the rear lower cover for connecting adjacent cabinets into a whole. A front upper cabinet door is installed on the top front side of the top plate. The sheet metal cabinet of this invention has an internal reinforcement mechanism that strengthens the structure, improving the overall structural strength of the cabinet. The reinforcement mechanism is installed by interlocking blocks and slots, making installation and disassembly simple and convenient, and maintenance easy. Furthermore, the cabinet connecting mechanism enables connection between adjacent sheet metal cabinets, allowing for convenient and quick connection of multiple sheet metal cabinets into a whole. This allows for the movement of individual cabinets or the movement of multiple sheet metal cabinets as a whole.

Description

Technical Field

[0001] This invention belongs to the field of power distribution cabinet technology, specifically relating to a deformation-resistant high and low voltage power distribution cabinet sheet metal cabinet structure. Background Technology

[0002] High-voltage and low-voltage switchgear are core equipment in power systems responsible for power distribution, control and protection. The core difference lies in the voltage level: high-voltage switchgear is ≥1kV and low-voltage switchgear is <1kV. Their core functions are to receive and distribute high-voltage power and control and protect high-voltage lines.

[0003] The components inside existing high and low voltage distribution cabinets are usually installed inside sheet metal cabinets. High and low voltage distribution cabinets are usually not used alone, but are used in combination of multiple cabinets. However, the existing sheet metal cabinets are all designed separately, and the adjacent cabinets are not connected into a whole, resulting in poor overall stability and difficulty in moving them as a whole. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and rationally designed sheet metal cabinet structure for high and low voltage power distribution cabinets that is resistant to deformation, in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A deformation-resistant high and low voltage distribution cabinet sheet metal cabinet structure includes a top plate, a rear upper cover fixedly installed on the rear side of the top plate, a rear lower cover fixedly installed at the bottom of the rear upper cover, two cabinet connecting mechanisms symmetrically installed on the rear side of the rear lower cover for connecting two adjacent cabinets into a whole, a front upper cabinet door installed at the top of the front side of the top plate, a front lower cabinet door installed at the bottom of the front upper cabinet door, a partition fixedly installed between the rear upper cover and the front upper cabinet door, and a reinforcement mechanism for reinforcing the cabinet structure provided on the partition.

[0007] Preferably, an installation plate is fixedly installed between the partition and the front upper cabinet door, a first side plate is fixedly installed on the right side of the top plate, and a second side plate is fixedly installed on the left side of the top plate.

[0008] Preferably, the cabinet connection mechanism includes a fixing plate fixedly installed on the rear lower cover. A connecting groove is provided in the middle of the rear side of the fixing plate. The connecting groove includes an arc groove and a straight groove. A locking groove is provided on the connecting groove. The locking groove is connected to the connecting groove. Two fixing grooves are symmetrically provided on the rear side of the fixing plate. A pressing component is provided on both fixing grooves.

[0009] Preferably, the crimping assembly includes a first guide rod fixedly installed inside the fixed groove, a movable plate slidably installed on the first guide rod, a first spring sleeved on the outside of the first guide rod, and the first spring fixedly installed between the inside of the fixed groove and the top of the movable plate.

[0010] Preferably, a pressing plate is fixedly installed on both of the movable plates, and a handle is fixedly installed on each side of the pressing plate. The bottom of the pressing plate is arc-shaped, and a circular plate is slidably engaged inside the locking groove. A U-shaped rod is fixedly installed on the circular plate.

[0011] Preferably, fixing blocks are fixedly installed at the four bottom corners of the partition, the two bottom corners of the front lower cabinet door, and the two bottom corners of the rear lower cover. Multiple fixing blocks are symmetrically distributed in pairs. Each fixing block has a snap-fit ​​groove on one side of its opposite side, and a sloping surface is provided on the top front side of the fixing block.

[0012] Preferably, a reinforcing mechanism is provided between the two fixed blocks in the same group. The reinforcing mechanism includes a support column movably disposed between the two fixed blocks. A limit groove is opened on the front side of the support column. Stops are installed at the top and bottom of the support column. A telescopic component is provided on the inner side of the support column.

[0013] Preferably, the telescopic assembly includes a second guide rod fixedly installed between two stops, two L-shaped rods fixedly installed on the second guide rod, the L-shaped rods fixedly installed on the inner side wall of the support column, a sliding block movably sleeved on the second guide rod, a second spring fixedly installed between the sliding block and the L-shaped rod, the second spring sleeved on the outside of the second guide rod, a connecting arm fixedly installed on one side of the sliding block, a locking block movably penetrating the stops fixedly installed at the bottom of the connecting arm, a pull rod fixedly installed on the other side of the sliding block, and a second handle slidably connected inside the limiting groove fixedly installed on the pull rod.

[0014] The beneficial effects of this invention are as follows: The sheet metal cabinet of this invention is made of multiple plates spliced ​​together, and has a modular and detachable design. The sheet metal cabinet is equipped with a reinforcement mechanism inside, which strengthens the structure of the sheet metal cabinet and improves the overall structural strength of the cabinet. The reinforcement mechanism is installed by interlocking blocks and interlocking slots, which makes installation and disassembly simple and convenient, maintenance convenient, and easy to assemble and disassemble. Furthermore, the cabinet connecting mechanism enables the connection between two adjacent sheet metal cabinets, thereby facilitating the quick and easy connection of multiple sheet metal cabinets into a whole. This allows for the movement of individual cabinets or the movement of multiple sheet metal cabinets as a whole. Attached Figure Description

[0015] Figure 1 This is a three-dimensional first-view schematic diagram of the assembled sheet metal cabinet of the present invention;

[0016] Figure 2 This is a three-dimensional second-view schematic diagram of the assembled sheet metal cabinet of the present invention;

[0017] Figure 3 This is an exploded view of the sheet metal cabinet of the present invention;

[0018] Figure 4 This is a perspective view of the reinforcement mechanism and fixing block of the present invention;

[0019] Figure 5 This is the invention Figure 4 Enlarged view of region A in the middle;

[0020] Figure 6 This is a perspective view of the cabinet connection mechanism of the present invention;

[0021] Figure 7 This is a partial sectional view of the cabinet connection mechanism of the present invention.

[0022] In the diagram: 1. Top plate; 2. Rear top cover; 3. Partition; 4. Cabinet connecting mechanism; 41. Fixing plate; 42. Connecting groove; 43. Fixing groove; 44. Pressing assembly; 441. Spring No. 1; 442. Guide rod No. 1; 443. Movable plate; 444. Pressing plate; 445. Handle No. 1; 45. U-shaped rod; 46. Circular plate; 47. Locking groove; 5. Reinforcing mechanism; 51. Support column; 52. Handle No. 2; 53. Limiting groove; 54. Telescopic assembly; 541. L-shaped rod; 542. Guide rod No. 2; 543. Spring No. 2; 544. Snap-fit ​​block; 545. Connecting arm; 546. Sliding block; 55. Pull rod; 6. Side panel No. 1; 7. Front lower cabinet door; 8. Front upper cabinet door; 9. Rear lower cover; 10. Side panel No. 2; 11. Mounting plate; 12. Fixing block; 13. Snap-fit ​​groove. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Example: Please refer to Figure 1 , Figure 2 and Figure 3A deformation-resistant high and low voltage distribution cabinet sheet metal cabinet structure includes a top plate 1, which serves as the top load-bearing and protective component of the cabinet, used for dust and rain protection, supporting hoisting, and improving the bending resistance of the upper part of the cabinet. A rear upper cover 2 is fixedly installed on the rear side of the top plate 1, serving as the upper rear protective plate of the cabinet and used to enclose the upper rear space of the cabinet. A rear lower cover 9 is fixedly installed at the bottom of the rear upper cover 2, serving as the lower rear protective plate of the cabinet. Together with the rear upper cover 2, they form a complete back panel, improving the impact and deformation resistance of the rear. Two cabinet connection mechanisms 4 are symmetrically installed on the rear side of the rear lower cover 9 to connect two adjacent cabinets into a whole, allowing for quick docking and locking between adjacent cabinets, forming a rigid whole and reducing displacement and deformation. A front upper cabinet door 8 is installed on the top front side of the top plate 1. The bottom of the cabinet door 8 is fitted with a front lower cabinet door 7. A partition 3 is fixedly installed between the rear upper cover 2 and the front upper cabinet door 8. This partition divides the interior of the cabinet into sections and also serves as an internal horizontal reinforcing beam to improve the cabinet's resistance to lateral deformation. A reinforcement mechanism 5 is installed on the partition 3 to strengthen the cabinet structure. The reinforcement mechanism 5 is an internally detachable support structure used to support the cabinet in the front-to-back and left-to-right directions, preventing the cabinet from bulging outward, shrinking inward, or twisting. An installation plate 11 is fixedly installed between the partition 3 and the front upper cabinet door 8. A first side plate 6 is fixedly installed on the right side of the top plate 1, and a second side plate 10 is fixedly installed on the left side of the top plate 1. The top plate 1, the first side plate 6, the second side plate 10, the front lower cabinet door 7, the front upper cabinet door 8, the rear upper cover 2, and the rear lower cover 9 together form a closed cabinet, improving overall rigidity and protection.

[0025] Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 Fixing blocks 12 are fixedly installed at the four bottom corners of the partition 3, the two bottom corners of the front lower cabinet door 7, and the two bottom corners of the rear lower cover 9. Multiple fixing blocks 12 are symmetrically distributed in pairs. Each of the multiple fixing blocks 12 has a snap-fit ​​groove 13 on its opposite side. The top front side of the fixing block 12 has a slope, which is used to guide the reinforcement mechanism 5 to slide smoothly into the snap-fit ​​groove 13, reducing the difficulty of installation.

[0026] Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 A reinforcing mechanism 5 is provided between the two fixed blocks 12 in the same group. The reinforcing mechanism 5 includes a support column 51 that is movably set between the two fixed blocks 12. The support column 51 is a rigid support rod used to provide lateral and longitudinal support for the inside of the cabinet and resist the outward expansion and torsional deformation of the cabinet. A limit groove 53 is opened on the front side of the support column 51. Blocks are installed at the top and bottom of the support column 51. A telescopic component 54 is provided on the inner side of the support column 51.

[0027] Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 The telescopic assembly 54 includes a second guide rod 542 fixedly installed between two stops. Two L-shaped rods 541 are fixedly installed on the second guide rod 542. The L-shaped rods 541 are fixedly installed on the inner side wall of the support column 51. A sliding block 546 is movably sleeved on the second guide rod 542. A second spring 543 is fixedly installed between the sliding block 546 and the L-shaped rods 541. The second spring 543 is sleeved on the outside of the second guide rod 542. A connecting arm 545 is fixedly installed on one side of the sliding block 546. A snap-fit ​​block 544 that movably passes through the stops is fixedly installed at the bottom of the connecting arm 545. The snap-fit ​​block 544 is provided with an arc-shaped surface that cooperates with the inclined surface to facilitate the quick installation of the reinforcement mechanism 5. A pull rod 55 is fixedly installed on the other side of the sliding block 546. A second handle 52 that is slidably connected inside the limiting groove 53 is fixedly installed on the pull rod 55. The limiting groove 53 is used to limit the movement of the second handle 52 to ensure that the telescopic stroke is controllable.

[0028] When using the reinforcement mechanism 5, first align the arc-shaped surface of the snap-fit ​​block 544 with the inclined surface of the fixing block 12, and then push the support column 51 along the direction of the inclined surface. Through the compression between the arc-shaped surface of the snap-fit ​​block 544 and the inclined surface, the snap-fit ​​block 544 retracts into the support column 51. At this time, the second spring 543 is in a compressed state. When the snap-fit ​​block 544 enters the snap-fit ​​groove 13, under the elastic force of the second spring 543, the snap-fit ​​block 544 snaps into the snap-fit ​​groove 13, realizing the quick installation of the reinforcement mechanism 5. When it is necessary to disassemble the reinforcement mechanism 5, press the second handle 52 to drive the pull rod 55 and the sliding block 546 on it to move in the center, and simultaneously drive the connecting arm 545 and the snap-fit ​​block 544 on it to move in the center, thereby pulling the snap-fit ​​block 544 out of the snap-fit ​​groove 13, realizing the quick disassembly of the reinforcement mechanism 5, thus facilitating the quick installation and disassembly of the reinforcement mechanism 5.

[0029] Please see Figure 1 , Figure 6 and Figure 7 The cabinet connection mechanism 4 includes a fixing plate 41 fixedly installed on the rear lower cover 9, which serves as the mounting base of the cabinet connection mechanism 4 to ensure connection strength. A connecting groove 42 is provided in the middle of the rear side of the fixing plate 41. The connecting groove 42 includes an arc groove and a straight groove. A locking groove 47 is provided on the connecting groove 42. The locking groove 47 is connected to the connecting groove 42. Two fixing grooves 43 are symmetrically provided on the rear side of the fixing plate 41. A pressing component 44 is provided on both fixing grooves 43.

[0030] Please see Figure 1 , Figure 6 and Figure 7The crimping assembly 44 includes a first guide rod 442 fixedly installed inside the fixed groove 43. A movable plate 443 is slidably installed on the first guide rod 442. A first spring 441 is sleeved on the outside of the first guide rod 442. The first spring 441 is fixedly installed between the inside of the fixed groove 43 and the top of the movable plate 443. A crimping plate 444 is fixedly installed on both movable plates 443. A first handle 445 is fixedly installed on both sides of the crimping plate 444. The bottom of the crimping plate 444 is arc-shaped. A circular plate 46 is slidably engaged inside the locking groove 47. A U-shaped rod 45 is fixedly installed on the circular plate 46. The first spring 441 is used to provide downward pressing force so that the crimping plate 444 always presses the circular plate 46.

[0031] In use, place the two sheet metal cabinets tightly together. Then, pull the first handle 445 upwards, which will simultaneously move the pressing plate 444 and the movable plate 443 on it upwards until the arc at the bottom of the pressing plate 444 is concentric with the arc groove on the connecting groove 42. Then, insert the circular plate 46 and the U-shaped rod 45 into the connecting groove 42 of the two adjacent sheet metal cabinets. The diameter of the arc groove of the connecting groove 42 is larger than the diameter of the circular plate 46 until the circular plate 46 is inserted into the locking groove 47. Then, release the first handle 445. Under the elastic force of the first spring 441, the movable plate 443 and the pressing plate 444 on it will move downwards until the pressing plate 444 presses the U-shaped rod 45 tightly against the bottom of the connecting groove 42, thus connecting the two adjacent sheet metal cabinets. The locking groove 47 and the pressing plate 444 ensure the reliability of the connection between the two adjacent sheet metal cabinets and prevent them from coming loose.

[0032] It should be noted that this type of deformation-resistant high and low voltage distribution cabinet sheet metal cabinet structure, during use, the cabinet as a whole is formed by the top plate 1, the rear upper cover 2, the rear lower cover 9, the front upper cabinet door 8, the front lower cabinet door 7, the first side plate 6, and the second side plate 10 being spliced ​​and fixed together to form a closed rigid shell, providing basic structural strength for the cabinet and preventing overall deformation during handling and use. The partition plate 3 and the mounting plate 11 divide the space inside the cabinet and provide a reference surface for electrical installation, while also enhancing the lateral rigidity of the cabinet and reducing the stress deformation in the front-back and left-right directions. When multiple cabinets are installed side by side, quick locking is achieved through the cabinet connecting mechanism 4: the circular plates 46 at both ends of the U-shaped rod 45 are slid into the locking groove 47 through the connecting groove 42, and under the action of the first spring 441, The pressing plate 444 automatically presses the circular plate 46, connecting adjacent cabinets into a whole, preventing gaps, tilting, and wobbling between cabinets, and greatly improving the overall deformation resistance of the multi-cabinet combination. The internal support of the cabinet is achieved through the reinforcement mechanism 5: the support column 51 is aligned with the fixing blocks 12 on both sides, and under the action of the second spring 543, the snap block 544 automatically snaps into the snap groove 13, so that the support column 51 provides front-to-back and left-to-right support to the cabinet, offsetting the stress of the cabinet's outward expansion, inward contraction, and torsional deformation, and suppressing problems such as cabinet deformation, door sagging, and cabinet bulging from the inside. Multiple sets of fixing blocks 12 and multiple sets of reinforcement mechanisms 5 cooperate to form a multi-point support system inside the cabinet, further dispersing the force and improving the overall rigidity and stability.

[0033] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A sheet metal cabinet structure for a deformation-resistant high and low voltage distribution cabinet, comprising a top plate (1), characterized in that: The top plate (1) is fixedly installed with a rear upper cover (2), and the bottom of the rear upper cover (2) is fixedly installed with a rear lower cover (9). The rear of the rear lower cover (9) is symmetrically installed with two cabinet connection mechanisms (4) for connecting two adjacent cabinets into a whole. The top of the front side of the top plate (1) is installed with a front upper cabinet door (8), and the bottom of the front upper cabinet door (8) is installed with a front lower cabinet door (7). A partition (3) is fixedly installed between the rear upper cover (2) and the front upper cabinet door (8). A reinforcement mechanism (5) for reinforcing the cabinet structure is provided on the partition (3).

2. The sheet metal cabinet structure for a deformation-resistant high and low voltage distribution cabinet according to claim 1, characterized in that: An installation plate (11) is fixedly installed between the partition (3) and the front upper cabinet door (8). A first side plate (6) is fixedly installed on the right side of the top plate (1), and a second side plate (10) is fixedly installed on the left side of the top plate (1).

3. The sheet metal cabinet structure for a deformation-resistant high and low voltage distribution cabinet according to claim 1, characterized in that: The cabinet connection mechanism (4) includes a fixing plate (41) fixedly installed on the rear lower cover (9). A connecting groove (42) is provided in the middle of the rear side of the fixing plate (41). The connecting groove (42) includes an arc groove and a straight groove. A locking groove (47) is provided on the connecting groove (42). The locking groove (47) is connected to the connecting groove (42). Two fixing grooves (43) are symmetrically provided on the rear side of the fixing plate (41). A pressing assembly (44) is provided on both fixing grooves (43).

4. The sheet metal cabinet structure for a deformation-resistant high and low voltage distribution cabinet according to claim 3, characterized in that: The crimping assembly (44) includes a first guide rod (442) fixedly installed inside the fixed groove (43), a movable plate (443) slidably installed on the first guide rod (442), and a first spring (441) sleeved on the outside of the first guide rod (442). The first spring (441) is fixedly installed between the inside of the fixed groove (43) and the top of the movable plate (443).

5. The sheet metal cabinet structure for a deformation-resistant high and low voltage distribution cabinet according to claim 4, characterized in that: A pressing plate (444) is fixedly installed on both of the movable plates (443). A handle (445) is fixedly installed on each side of the pressing plate (444). The bottom of the pressing plate (444) is arc-shaped. A circular plate (46) is slidably engaged inside the locking groove (47). A U-shaped rod (45) is fixedly installed on the circular plate (46).

6. The deformation-resistant high and low voltage distribution cabinet sheet metal cabinet structure according to claim 1, characterized in that: Fixing blocks (12) are fixedly installed at the four bottom corners of the partition (3), the two bottom corners of the front lower cabinet door (7), and the two bottom corners of the rear lower cover (9). Multiple fixing blocks (12) are symmetrically distributed in pairs. Each of the multiple fixing blocks (12) has a snap-fit ​​groove (13) on one side opposite to the other. The top of the front side of the fixing block (12) has an inclined surface.

7. The anti-deformation high and low voltage distribution cabinet sheet metal cabinet structure according to claim 6, characterized in that: A reinforcing mechanism (5) is provided between two fixed blocks (12) in the same group. The reinforcing mechanism (5) includes a support column (51) movably disposed between the two fixed blocks (12). A limit groove (53) is opened on the front side of the support column (51). Blocks are installed on the top and bottom of the support column (51). A telescopic component (54) is provided on the inner side of the support column (51).

8. The sheet metal cabinet structure for a deformation-resistant high and low voltage distribution cabinet according to claim 7, characterized in that: The telescopic assembly (54) includes a second guide rod (542) fixedly installed between two stops. Two L-shaped rods (541) are fixedly installed on the second guide rod (542). The L-shaped rods (541) are fixedly installed on the inner side wall of the support column (51). A sliding block (546) is movably sleeved on the second guide rod (542). A second spring (543) is fixedly installed between the sliding block (546) and the L-shaped rod (541). The second spring (543) is sleeved on the outside of the second guide rod (542). A connecting arm (545) is fixedly installed on one side of the sliding block (546). A snap block (544) that movably penetrates the stop is fixedly installed at the bottom of the connecting arm (545). A pull rod (55) is fixedly installed on the other side of the sliding block (546). A second handle (52) that is slidably connected inside the limiting groove (53) is fixedly installed on the pull rod (55).

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