Switch cabinet with protection structure

Abstract

The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet with a protection structure, which comprises a switch cabinet body, the front side of the switch cabinet body is hinged with a cabinet door through a hinge, the front side of the switch cabinet body is provided with the protection structure, the protection structure comprises a fixed convex block, and the top of the fixed convex block is provided with a first threaded column. The protection structure further comprises an L-shaped installation base, a second threaded column is arranged at the top of the L-shaped installation base, a non-tooth area of the second threaded column is sleeved with a second rotating sleeve block, a rectangular sleeve is arranged on the left side of the second rotating sleeve block, and a movable rod is arranged on the right side of the rectangular sleeve. And a locking piece for fixing the position of the movable rod is arranged at the top of the rectangular sleeve. According to the switch cabinet with the protection structure, the frame-shaped rubber pad is arranged between the rectangular sleeve and the movable rod, a gap between the rectangular sleeve and the movable rod is sealed, external dust or impurities are prevented from invading a sliding path, failure of the locking piece due to particulate matter blockage is avoided, and long-term stable operation is ensured.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet technology, specifically a switch cabinet with a protective structure. Background Technology

[0002] Switchgear is a critical piece of equipment in power systems, primarily used for controlling, protecting, and distributing electrical energy. It includes high-voltage and low-voltage switchgear, enabling circuit switching operations and fault protection. To ensure normal power transmission, switchgear requires regular inspection and maintenance to maintain its proper operation. However, the design of the cabinet doors in existing switchgear presents certain safety hazards during inspection or maintenance. Because the cabinet doors are open during inspection, maintenance personnel can easily slam them shut due to accidental contact. This not only hinders the smooth progress of maintenance work but can also lead to serious safety accidents, especially an increased risk of electric shock.

[0003] Patent CN220324993U discloses a high- and low-voltage switchgear with a protective structure. The switchgear includes a main body with a door hinged to its front. A protective structure exists between the switchgear and the door, comprising a long strip and a hollow cover. A guide hole is provided at the top of the hollow cover, and an elastic telescopic component is installed within the guide hole. The elastic telescopic component is fixedly mounted to a corresponding rotating mechanism. A rolling auxiliary ball is provided at the bottom of the elastic telescopic component. A positioning lock hole is provided at the bottom of the hollow cover's inner cavity, and an unlocking mechanism is provided at the bottom of the hollow cover. This invention automatically locks and limits the door to the switchgear body after it is opened, preventing the door from rotating when unlocked. This avoids the safety hazard of accidental door closure and electric shock to maintenance personnel, thus improving the safety of high- and low-voltage switchgear maintenance.

[0004] The aforementioned existing technology utilizes an elastic telescopic component consisting of a connecting block, a return spring, and a locking block, combined with an unlocking mechanism positioned at the locking hole, to fix the cabinet door in its open position and facilitate closure after maintenance. However, this structure still has certain drawbacks in practical applications. Specifically, the top of the hollow cover has a guide hole. After prolonged use, external dust and impurities may enter the hollow cover through this hole, obstructing the sliding path of the connecting block and even filling the locking hole with particles. This prevents the locking block from smoothly inserting into the locking hole, thus losing its locking function. This problem directly affects the safety and reliability of the switchgear. Therefore, to address the shortcomings of this protective structure, a switchgear with a protective structure is proposed to enhance safety during maintenance and ensure a safer and more reliable working environment for maintenance personnel. Utility Model Content

[0005] The purpose of this utility model is to provide a switch cabinet with a protective structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A switch cabinet with a protective structure includes a switch cabinet body, which houses electrical components and provides a main support structure, such as... Figure 1 As shown, the front side of the switch cabinet is hinged with a cabinet door, which is used to close or open the switch cabinet for maintenance operations. A protective structure is provided on the front side of the switch cabinet and at the top of the cabinet door. The protective structure is used to lock the cabinet door in the open state and prevent accidental closing.

[0008] like Figure 3 As shown, the protective structure includes a fixed protrusion integrally formed with the switch cabinet body. The fixed protrusion is used to support the protective structure. The top of the fixed protrusion is provided with a first threaded post. The first threaded post is used to fix the first rotating sleeve block and allow it to rotate freely. The toothless area of ​​the first threaded post is fitted with the first rotating sleeve block. The first rotating sleeve block is used to connect the movable rod and transmit the movement when the cabinet door is opened and closed. The right side of the first rotating sleeve block is provided with a movable rod, which is used to slide inside the rectangular sleeve.

[0009] The protective structure also includes an L-shaped mounting base installed on the front side of the cabinet door. The L-shaped mounting base is used to fix the second threaded post. The top of the L-shaped mounting base is provided with the second threaded post. The second threaded post is used to fix the second rotating sleeve block and allow it to rotate freely. The toothless area of ​​the second threaded post is fitted with the second rotating sleeve block. The second rotating sleeve block is used to connect the rectangular sleeve and transmit the movement when the cabinet door is opened and closed. The left side of the second rotating sleeve block is provided with a rectangular sleeve. The rectangular sleeve is used to accommodate the sliding of the movable rod and cooperate with the locking element to fix its position.

[0010] The movable rod is slidably connected inside a rectangular sleeve. A locking element for fixing the position of the movable rod is provided at the top and near the right side of the rectangular sleeve. The locking element automatically locks the cabinet door after it is opened by inserting into the slot of the movable rod.

[0011] Preferred, such as Figure 3 As shown, the top end of the first threaded post is threaded with a first anti-loosening nut. The first anti-loosening nut is used to prevent the first rotating sleeve block from falling off the first threaded post. The bottom of the first anti-loosening nut does not contact the top of the first rotating sleeve block to avoid rotational interference and maintain a clearance for movement.

[0012] Preferred, such as Figure 5As shown, a slot is provided at the top and near the right side of the movable rod. The slot is used to cooperate with the positioning rod to fix the position of the movable rod. The upper half of the right side of the movable rod is provided with a sloping push surface. The sloping push surface is used to push the positioning rod upward when the cabinet door is opened so that the positioning rod can be inserted into the slot.

[0013] Preferred, combined Figure 5 and Figure 6 As shown, the locking component includes a circular cover fixedly connected to the top of the rectangular sleeve. It can be connected by adhesive, welding or thread. The circular cover is used to accommodate the positioning rod and provide it with guiding space. The positioning rod is movably connected inside the circular cover. The positioning rod is used to insert into the slot to lock the movable rod. The bottom end of the positioning rod penetrates the top of the rectangular sleeve. When the cabinet door is opened, the bottom end of the positioning rod is inserted into the slot.

[0014] The top of the positioning rod passes through the top of the inner wall of the circular cover and is fixedly connected to a pull block. The pull block is used to manually lift the positioning rod to release the lock. The bottom of the pull block is in contact with the top of the circular cover. When the positioning rod is not moved up, the bottom of the pull block is always in contact with the top of the circular cover, which can prevent dust from entering the circular cover.

[0015] A spring is sleeved on the outer side of the positioning rod. The spring is used to provide a reset force so that the positioning rod can automatically return to its original position. An annular reset block is provided in the lower middle part of the outer wall of the positioning rod. The annular reset block is used to limit the swing of the positioning rod and compress the spring. The outer wall of the annular reset block is in contact with the inner wall of the circular cover. The top end of the spring abuts against the top of the inner wall of the circular cover, and the bottom end of the spring abuts against the top of the annular reset block.

[0016] Preferred, such as Figure 4 As shown, a frame-shaped rubber pad is embedded at the left end of the inner wall of the rectangular sleeve. The inner wall of the frame-shaped rubber pad is in contact with the outer wall of the movable rod. The frame-shaped rubber pad is used to seal the gap between the movable rod and the rectangular sleeve to prevent dust from entering the rectangular sleeve.

[0017] Preferred, such as Figure 3 As shown, the top of the second threaded post is threaded with a second anti-loosening nut. The second anti-loosening nut is used to prevent the second rotating sleeve block from falling off the second threaded post. The bottom of the second anti-loosening nut does not contact the top of the rectangular sleeve to avoid rotational interference and retain the movement clearance.

[0018] The L-shaped mounting base is located at the upper right corner of the front side of the cabinet door. The front side of the L-shaped mounting base has two mounting holes, and screws are connected to the mounting holes. The screws are threaded to the front side of the cabinet door. When the cabinet door is damaged, the L-shaped mounting base can be disassembled, which facilitates the installation of the protective structure and a new cabinet door.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This switch cabinet with a protective structure can automatically lock its position after the cabinet door is opened by cooperating with the locking component of the protective structure and the slot of the movable rod, so as to avoid the cabinet door being accidentally closed due to accidental contact, and significantly reduce the risk of electric shock to maintenance personnel.

[0021] 2. The switch cabinet with protective structure has a frame-shaped rubber gasket between the rectangular bushing and the movable rod to seal the gap between them, prevent external dust or impurities from entering the sliding path, avoid the locking parts from failing due to particulate matter blockage, and ensure long-term stable operation.

[0022] 3. The switch cabinet with protective structure has an L-shaped mounting base that is fixed to the cabinet door with screws. When the cabinet door is damaged, the L-shaped mounting base can be removed from the damaged cabinet door without replacing the entire protective structure, thus reducing maintenance time and resource consumption. Attached Figure Description

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

[0024] Figure 2 This is a schematic diagram of the overall open state structure of this utility model;

[0025] Figure 3 This is an exploded view of the protective structure in this utility model;

[0026] Figure 4 This is a schematic diagram of the assembly structure of the movable rod and the rectangular sleeve in this utility model;

[0027] Figure 5 This is a partial structural diagram of the protective structure in this utility model;

[0028] Figure 6 This is a cross-sectional structural diagram of the locking component in this utility model;

[0029] In the diagram: 100, switch cabinet body; 200, cabinet door; 300, protective structure; 310, fixing protrusion; 311, first threaded post; 312, first anti-loosening nut; 320, L-shaped mounting base; 321, second threaded post; 322, second anti-loosening nut; 323, mounting hole; 330, first rotating sleeve block; 340, movable rod; 341, slot; 342, inclined push surface; 350, second rotating sleeve block; 360, rectangular sleeve; 370, locking element; 371, circular cover; 372, positioning rod; 373, annular reset block; 374, spring; 375, pull block; 380, frame-shaped rubber pad; 390, screw. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Please see Figures 1-6 This utility model provides a technical solution:

[0033] A switch cabinet with a protective structure includes a switch cabinet body 100, which houses electrical components and provides a main support structure, such as... Figure 1 As shown, a cabinet door 200 is hinged to the front side of the switch cabinet 100. The cabinet door 200 is used to close or open the switch cabinet 100 to enable maintenance operations. A protective structure 300 is provided on the front side of the switch cabinet 100 and at the top of the cabinet door 200. The protective structure 300 is used to lock the cabinet door 200 in the open state and prevent accidental closing.

[0034] like Figure 3 As shown, the protective structure 300 includes a fixed protrusion 310 integrally formed with the switch cabinet body 100. The fixed protrusion 310 is used to support the protective structure 300. The top of the fixed protrusion 310 is provided with a first threaded post 311. The first threaded post 311 is used to fix the first rotating sleeve block 330 and allow it to rotate freely. The toothless area of ​​the first threaded post 311 is fitted with the first rotating sleeve block 330. The first rotating sleeve block 330 is used to connect the movable rod 340 and transmit the movement of the cabinet door 200 when it is opened and closed. The right side of the first rotating sleeve block 330 is provided with a movable rod 340. The movable rod 340 is used to slide within the rectangular sleeve 360.

[0035] The protective structure 300 also includes an L-shaped mounting base 320 installed on the front side of the cabinet door 200. The L-shaped mounting base 320 is used to fix the second threaded post 321. The top of the L-shaped mounting base 320 is provided with the second threaded post 321. The second threaded post 321 is used to fix the second rotating sleeve block 350 and allow it to rotate freely. The toothless area of ​​the second threaded post 321 is fitted with the second rotating sleeve block 350. The second rotating sleeve block 350 is used to connect the rectangular sleeve 360 ​​and transmit the movement of the cabinet door 200 when it is opened and closed. The left side of the second rotating sleeve block 350 is provided with the rectangular sleeve 360. The rectangular sleeve 360 ​​is used to accommodate the sliding of the movable rod 340 and cooperate with the locking member 370 to fix its position.

[0036] The movable rod 340 is slidably connected inside the rectangular sleeve 360. A locking element 370 for fixing the position of the movable rod 340 is provided at the top and near the right side of the rectangular sleeve 360. The locking element 370 automatically locks the cabinet door 200 after it is opened by inserting into the slot 341 of the movable rod 340.

[0037] In this embodiment, as Figure 3 As shown, the top end of the first threaded post 311 is threaded with a first anti-loosening nut 312. The first anti-loosening nut 312 is used to prevent the first rotating sleeve block 330 from falling off the first threaded post 311. The bottom of the first anti-loosening nut 312 does not contact the top of the first rotating sleeve block 330 to avoid rotational interference and maintain a clearance for movement.

[0038] Specifically, such as Figure 5 As shown, a slot 341 is provided at the top and near the right side of the movable rod 340. The slot 341 is used to cooperate with the positioning rod 372 to fix the position of the movable rod 340. A sloping push surface 342 is provided on the upper half of the right side of the movable rod 340. The sloping push surface 342 is used to push the positioning rod 372 upward when the cabinet door 200 is opened so that the positioning rod 372 can be inserted into the slot 341.

[0039] Furthermore, in combination Figure 5 and Figure 6 As shown, the locking component 370 includes a circular cover 371 fixedly connected to the top of the rectangular sleeve 360. It can be connected by adhesive, welding or thread. The circular cover 371 is used to accommodate the positioning rod 372 and provide it with guiding space. The positioning rod 372 is movably connected inside the circular cover 371. The positioning rod 372 is used to insert into the slot 341 to lock the movable rod 340. The bottom end of the positioning rod 372 passes through the top of the rectangular sleeve 360. When the cabinet door 200 is opened, the bottom end of the positioning rod 372 is inserted into the slot 341.

[0040] The top of the positioning rod 372 passes through the top of the inner wall of the circular cover 371 and is fixedly connected to a pull block 375. The pull block 375 is used to manually lift the positioning rod 372 to release the lock. The bottom of the pull block 375 is in contact with the top of the circular cover 371. When the positioning rod 372 is not moved up, the bottom of the pull block 375 is always in contact with the top of the circular cover 371, which can prevent dust from entering the circular cover 371.

[0041] A spring 374 is sleeved on the outer side of the positioning rod 372. The spring 374 is used to provide a reset force so that the positioning rod 372 automatically returns to its original position. An annular reset block 373 is provided in the lower middle part of the outer wall of the positioning rod 372. The annular reset block 373 is used to limit the swing of the positioning rod 372 and compress the spring 374. The outer wall of the annular reset block 373 is in contact with the inner wall of the circular cover 371. The top end of the spring 374 abuts against the top of the inner wall of the circular cover 371, and the bottom end of the spring 374 abuts against the top of the annular reset block 373.

[0042] Furthermore, such as Figure 4 As shown, a frame-shaped rubber pad 380 is embedded at the left end of the inner wall of the rectangular sleeve 360. The inner wall of the frame-shaped rubber pad 380 is in contact with the outer wall of the movable rod 340. The frame-shaped rubber pad 380 is used to seal the gap between the movable rod 340 and the rectangular sleeve 360 ​​to prevent dust from entering the rectangular sleeve 360.

[0043] Furthermore, such as Figure 3 As shown, the top end of the second threaded post 321 is threaded with a second anti-loosening nut 322. The second anti-loosening nut 322 is used to prevent the second rotating sleeve block 350 from falling off the second threaded post 321. The bottom of the second anti-loosening nut 322 does not contact the top of the rectangular sleeve 360 ​​to avoid rotational interference and retain the movement clearance.

[0044] The L-shaped mounting base 320 is located at the upper right corner of the front side of the cabinet door 200. The front side of the L-shaped mounting base 320 has two mounting holes 323, and the mounting holes 323 are connected to screws 390. The screws 390 are threaded to the front side of the cabinet door 200. When the cabinet door 200 is damaged, the L-shaped mounting base 320 can be disassembled, which facilitates the installation of the protective structure 300 and the new cabinet door 200.

[0045] In this embodiment, the switchgear with a protective structure is used when the operator manually opens the cabinet door 200. The cabinet door 200 rotates around the hinge, causing the L-shaped mounting base 320 and the second rotating sleeve 350 to rotate synchronously. At this time, the rectangular sleeve 360 ​​connected to the second rotating sleeve 350 pushes the movable rod 340 to slide inside the rectangular sleeve 360. The inclined push surface 342 of the movable rod 340 contacts the positioning insert 372 of the locking member 370 and pushes it to move upward. The positioning insert 372 compresses the spring 374. After the cabinet door 200 is fully opened, the movable rod 340 slides to the preset position of the rectangular sleeve 360. When the spring 374 releases its elastic force, the positioning rod 372 automatically inserts into the slot 341 of the movable rod 340, thus locking the cabinet door 200 in the open state. During maintenance, the frame-shaped rubber pad 380 seals the gap between the movable rod 340 and the rectangular sleeve 360 ​​to prevent external dust from entering. At the same time, the fixing protrusion 310 supports the sliding path of the movable rod 340 through the first rotating sleeve block 330, ensuring locking stability. After maintenance, the operator manually pulls the pull block 375 of the locking component 370, causing the positioning rod 372 to move upward and disengage from the slot 341, and then closes the cabinet door 200.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A switch cabinet with a protective structure, comprising a switch cabinet body (100), wherein a cabinet door (200) is hinged to the front side of the switch cabinet body (100), characterized in that: A protective structure (300) is provided on the front side of the switch cabinet (100) and at the top of the cabinet door (200). The protective structure (300) includes a fixed protrusion (310) integrally formed with the switch cabinet (100). The top of the fixed protrusion (310) is provided with a first threaded post (311). A first rotating sleeve (330) is sleeved on the toothless area of ​​the first threaded post (311). A movable rod (340) is provided on the right side of the first rotating sleeve (330). The protective structure (300) also includes a rod installed on... An L-shaped mounting base (320) is located on the front side of the cabinet door (200). The top of the L-shaped mounting base (320) is provided with a second threaded post (321). The toothless area of ​​the second threaded post (321) is fitted with a second rotating sleeve (350). A rectangular sleeve (360) is provided on the left side of the second rotating sleeve (350). The movable rod (340) is slidably connected inside the rectangular sleeve (360). A locking element (370) for fixing the position of the movable rod (340) is provided at the top of the rectangular sleeve (360) and near the right side.

2. The switchgear cabinet with a protective structure according to claim 1, characterized in that: The top end of the first threaded post (311) is threadedly connected to a first anti-loosening nut (312), and the bottom of the first anti-loosening nut (312) does not contact the top of the first rotating sleeve block (330).

3. The switchgear cabinet with a protective structure according to claim 1, characterized in that: A slot (341) is provided at the top and near the right side of the movable rod (340), and a sloping push surface (342) is provided on the upper half of the right side of the movable rod (340).

4. The switchgear cabinet with a protective structure according to claim 3, characterized in that: The locking component (370) includes a circular cover (371) fixedly connected to the top of the rectangular sleeve (360). A positioning rod (372) is movably connected inside the circular cover (371). The bottom end of the positioning rod (372) passes through the top of the rectangular sleeve (360). When the cabinet door (200) is opened, the bottom end of the positioning rod (372) is inserted into the slot (341).

5. The switchgear cabinet with a protective structure according to claim 4, characterized in that: The top end of the positioning rod (372) passes through the top of the inner wall of the circular cover (371) and is fixedly connected to a pull block (375). The bottom of the pull block (375) is in contact with the top of the circular cover (371).

6. The switchgear cabinet with a protective structure according to claim 4, characterized in that: A spring (374) is sleeved on the outer side of the positioning rod (372). An annular reset block (373) is provided in the lower middle part of the outer wall of the positioning rod (372). The outer wall of the annular reset block (373) is in contact with the inner wall of the circular cover (371). The top end of the spring (374) abuts against the top of the inner wall of the circular cover (371), and the bottom end of the spring (374) abuts against the top of the annular reset block (373).

7. The switchgear cabinet with a protective structure according to claim 1, characterized in that: A frame-shaped rubber pad (380) is embedded at the left end of the inner wall of the rectangular sleeve (360), and the inner wall of the frame-shaped rubber pad (380) is in contact with the outer wall of the movable rod (340).

8. The switchgear cabinet with a protective structure according to claim 1, characterized in that: The top of the second threaded post (321) is threaded with a second anti-loosening nut (322), and the bottom of the second anti-loosening nut (322) does not contact the top of the rectangular sleeve (360).

9. The switchgear cabinet with a protective structure according to claim 1, characterized in that: The L-shaped mounting seat (320) is located at the upper right corner of the front side of the cabinet door (200), two mounting holes (323) are formed in the front side of the L-shaped mounting seat (320), the mounting holes (323) are connected with screws (390), and the screws (390) are threadedly connected to the front side of the cabinet door (200).

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