Interlocking device of linkage self-locking explosion-proof control cabinet

Abstract

The utility model discloses a kind of interlocking devices of linkage self-locking explosion-proof control cabinet, it is related to the interlocking device field of linkage self-locking explosion-proof control cabinet, a kind of interlocking device of linkage self-locking explosion-proof control cabinet, including box, the box upper end is equipped with buffer structure, the box one end is hinged with sealing door, the box inside one side is fixedly installed with fixed block, the fixed block inside movably installed with resistance rod, resistance rod outer circle is sleeved with stabilizing block, resistance rod upper end outer circle is equipped with rack, the box inside both sides are rotatably installed with rotating rod, resistance rod close to the side outer circle of rotating rod is equipped with gear, the box inside is fixedly installed with mounting plate, the total power supply is fixedly installed with total power supply in mounting plate upper end center position, the end of total power supply away from mounting plate is equipped with switch. The utility model uses above-mentioned structure, protects internal component, stabilizing block plays supporting stable effect to resistance rod, stop block prevents resistance rod excessive movement, ensure that each component action is accurate.

Description

Technical Field

[0001] This utility model belongs to the field of interlocking devices for interlocking self-locking explosion-proof control cabinets, and specifically relates to an interlocking device for interlocking self-locking explosion-proof control cabinets. Background Technology

[0002] In fields such as petroleum and chemical industries where flammable and explosive environments exist, interlocking explosion-proof control cabinets are crucial for ensuring the safe operation of equipment. To prevent safety accidents caused by misoperation, reliable interlocking devices are needed to achieve linkage control between the cabinet door and the internal circuitry. With the development of industrial automation, the requirements for the safety and reliability of control cabinets have increased, driving the research and development of interlocking devices for interlocking explosion-proof control cabinets to meet the safety management needs under complex operating conditions.

[0003] Existing technologies have specifically developed interlocking devices for interlocking self-locking explosion-proof control cabinets. For example, Chinese Patent No. CN110213917B discloses "An Interlocking Device for Interlocking Self-locking Explosion-proof Control Cabinets". When used in interlocking self-locking explosion-proof control cabinets, it can control the opening of the contact plate, so that the cabinet door can only be opened after the internal power is cut off. In addition, the present invention can also be used alone, enabling existing explosion-proof cabinets to achieve the technical effect of automatically connecting the main power supply when the door is closed and automatically cutting off the main power supply when the door is opened.

[0004] Although this invention is used in interlocking explosion-proof control cabinets to control the opening of the contact plate, ensuring the cabinet door can only be opened after internal power is cut off, and can also be used independently to enable existing explosion-proof cabinets to automatically connect to the main power supply when the door is closed and automatically disconnect the main power supply when the door is opened, the aforementioned structure lacks an external protective structure, making it susceptible to external impacts and corrosion, which may damage the internal interlocking components. Furthermore, external debris and moisture can easily penetrate the cabinet, interfering with the operation of components such as the electromagnet ring, affecting the reliability of the interlocking, posing a safety hazard, and potentially causing the cabinet to deform and malfunction internally. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an interlocking device for a self-locking explosion-proof control cabinet, so as to solve the problem of the interlocking device for a self-locking explosion-proof control cabinet.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] An interlocking device for a self-locking explosion-proof control cabinet includes a housing. The housing has a buffer structure at its upper end and a sealed door hinged to one end. A fixing block is fixedly installed on one side of the housing's interior. A stop rod is movably installed inside the fixing block. A stabilizing block is sleeved around the outer ring of the stop rod. A rack is provided on the outer ring of the upper end of the stop rod. Rotating rods are rotatably installed on both sides of the housing's interior. A gear is provided on the outer ring of the rotating rod near the stop rod. An installation plate is fixedly installed inside the housing. A main power supply is fixedly installed at the center of the upper end of the installation plate. A switch is provided at the end of the main power supply away from the installation plate. A sleeve block is sleeved on the outer ring of the rotating rod near the main power supply. A rectangular groove is provided on one side of the sleeve block. One end of the switch is located in the rectangular groove. A contact plate is fixedly installed on the upper end of the installation plate away from the main power supply. A contact rod is provided inside one side of the rotating rod. An electric push rod is fixedly installed on one side of the housing's interior. A push plate is installed on the output shaft of the electric push rod. A locking rod is fixedly installed on one side of the push plate. A lock seat is fixedly installed at one end of the sealed door's interior.

[0008] As a preferred technical solution, the buffer structure includes a damping plate, a buffer spring, and a buffer groove. The upper end of the box is provided with a buffer groove, and multiple buffer springs are fixedly installed inside each buffer groove. A damping plate is fixedly installed at the end of each buffer spring away from the buffer groove.

[0009] As a preferred technical solution, rotating seats are fixedly installed on both sides inside the box. The two ends of the rotating rod are rotatably installed inside the rotating seats. A stop block is provided on the outer ring of one end of the abutment rod near the fixed block, and the stop block is attached to one end of the fixed block.

[0010] As a preferred technical solution, the fixed block has a movable groove inside, and a compression spring is fixedly installed inside the movable groove. The end of the compression spring away from the movable groove is fixedly installed at one end of the abutment rod.

[0011] As a preferred technical solution, the end of the abutment rod away from the fixing block abuts against the inside of the sealing door, and one end of the stabilizing block is fixedly installed inside the box.

[0012] As a preferred technical solution, high-strength anti-collision plates are fixedly installed on both sides and one end of the box, and a handle is provided on the side of the sealed door away from the box.

[0013] As a preferred technical solution, the contact rod is attached to the bottom of the contact plate, the contact plate is electrically connected to the electric push rod, and the locking rod is slidably installed inside the lock seat.

[0014] In summary, the present invention has the following main advantages:

[0015] First, when the buffer structure at the top of the box is subjected to external impact, the damping plate is compressed, causing the buffer spring in the buffer groove to contract and absorb the impact energy. The high-strength anti-collision plates on both sides and one end of the box directly resist external collisions and protect the internal components. The stabilizing block supports and stabilizes the abutment, and the stop block prevents the abutment from moving excessively, ensuring that the movement of each component is precise.

[0016] Secondly, the buffer structure at the top of the cabinet can effectively absorb external impacts and reduce damage to internal components from external forces. The high-strength anti-collision plates on both sides and one end can directly resist collisions and improve the cabinet's impact resistance. At the same time, the overall structural design meets explosion-proof requirements, which can prevent external dangerous environments from affecting internal circuits and also avoid internal faults from causing external dangers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the box of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the box body of this utility model;

[0020] Figure 4 This is a utility model Figure 3 A magnified structural diagram of part A;

[0021] Figure 5 This is a schematic diagram of the gear and toothed plate structure of this utility model;

[0022] Figure 6 This is a utility model Figure 5 A schematic diagram of the enlarged structure of part B;

[0023] Figure 7 This is a schematic diagram of the main power supply and contact plate structure of this utility model.

[0024] Reference numerals: 1. Buffer structure; 2. High-strength anti-collision plate; 3. Handle; 4. Sealing door; 5. Rotating rod; 6. Rotating seat; 7. Sleeve block; 8. Electric push rod; 9. Push plate; 10. Locking rod; 11. Mounting plate; 12. Abutment rod; 13. Stabilizing block; 14. Lock seat; 15. Counteracting plate; 16. Buffer spring; 17. Buffer groove; 18. Gear; 19. Movable groove; 20. Fixed block; 21. Stop block; 22. Compression spring; 23. Switch; 24. Contact plate; 25. Main power supply; 26. Rectangular groove; 27. Contact rod; 28. Box body; 29. ​​Rack. Detailed Implementation

[0025] Example

[0026] refer to Figures 1-7This embodiment of an interlocking device for a self-locking explosion-proof control cabinet includes a housing 28. A buffer structure 1 is provided at the upper end of the housing 28. A sealing door 4 is hinged to one end of the housing 28. A fixing block 20 is fixedly installed on one side inside the housing 28. A stop rod 12 is movably installed inside the fixing block 20. A stabilizing block 13 is sleeved around the outer ring of the stop rod 12. A rack 29 is provided on the outer ring of the upper end of the stop rod 12. Rotating rods 5 are rotatably installed on both sides inside the housing 28. A gear 18 is provided on the outer ring of the rotating rod 5 on the side closest to the stop rod 12. A mounting plate 11 is fixedly installed inside the housing 28. A fixed installation is located at the center of the upper end of the mounting plate 11. There is a main power supply 25. A switch 23 is provided at the end of the main power supply 25 away from the mounting plate 11. A sleeve block 7 is sleeved on the outer ring of the rotating rod 5 near the main power supply 25. A rectangular groove 26 is provided on one side of the sleeve block 7. One end of the switch 23 is located in the rectangular groove 26. A contact plate 24 is fixedly installed on the upper end of the mounting plate 11 away from the main power supply 25. A contact rod 27 is provided inside one side of the rotating rod 5. An electric push rod 8 is fixedly installed on one side of the box 28. A push plate 9 is installed on the output shaft of the electric push rod 8. A locking rod 10 is fixedly installed on one side of the push plate 9. A lock seat 14 is fixedly installed on one end of the inner side of the sealing door 4.

[0027] refer to Figures 5 to 6 The fixed block 20 has a movable groove 19 inside, and a compression spring 22 is fixedly installed inside the movable groove 19. The end of the compression spring 22 away from the movable groove 19 is fixedly installed on one end of the abutment rod 12. When the sealing door 4 is closed, its inner side presses against the abutment rod 12. The abutment rod 12 moves in the movable groove 19 of the fixed block 20 and compresses the compression spring 22. The rack 29 on the outer ring of the abutment rod 12 meshes with the gear 18 on one side of the rotating rod 5. The movement of the abutment rod 12 drives the gear 18 to rotate, thereby causing the rotating rod 5 to rotate in the rotating seats 6 on both sides. The sleeve block 7 on one side of the rotating rod 5 rotates with it. The rectangular groove 26 inside the sleeve block 7 drives the switch 23 of the main power supply 25 to operate, realizing the opening of the main power supply 25.

[0028] refer to Figures 3 to 4 The buffer structure 1 includes a damping plate 15, a buffer spring 16, and a buffer groove 17. The upper end of the housing 28 is provided with a buffer groove 17. Multiple buffer springs 16 are fixedly installed inside the buffer groove 17. The damping plate 15 is fixedly installed at the end of the buffer spring 16 away from the buffer groove 17. When the buffer structure 1 at the upper end of the housing 28 is subjected to an external impact, the damping plate 15 is compressed, causing the buffer springs 16 in the buffer groove 17 to contract and absorb the impact energy. The high-strength anti-collision plates 2 on both sides and one end of the housing 28 directly resist external collisions and protect the internal components. The stabilizing block 13 provides support and stability for the abutment rod 12. The stop block 21 prevents the abutment rod 12 from moving excessively and ensures the precise movement of each component.

[0029] refer to Figures 2 to 5Both sides of the box 28 are fixedly installed with rotating seats 6. The two ends of the rotating rod 5 are rotatably installed inside the rotating seats 6. The outer ring of the abutment rod 12 near the fixed block 20 is provided with a stop block 21, which fits against one end of the fixed block 20. The end of the abutment rod 12 away from the fixed block 20 abuts against the inside of the sealing door 4. One end of the stabilizing block 13 is fixedly installed inside the box 28. High-strength anti-collision plates 2 are fixedly installed on both sides and one end of the box 28. The side of the sealing door 4 away from the box 28 is provided with a handle 3. The contact rod 27 fits against the bottom of the contact plate 24. The contact plate 24 is electrically connected to the electric push rod 8. The locking rod 10 is slidably installed inside the lock seat 14. At the same time, the side of the rotating rod 5 Contact rod 27 is attached to the bottom of contact plate 24. Contact plate 24 is electrically connected to electric push rod 8, triggering electric push rod 8 to work. Its output shaft pushes push plate 9, causing lock rod 10 to slide into lock seat 14 inside the sealed door 4, completing the locking of sealed door 4. To open sealed door 4, pull handle 3 to rotate sealed door 4, no longer pressing against push rod 12. Compression spring 22 returns to its original position, pushing push rod 12 back. Rack 29 drives gear 18 to rotate in the opposite direction. Rotating rod 5 rotates in the opposite direction. Sleeve block 7 drives main power switch 23 to turn off. Contact rod 27 separates from contact plate 24. Electric push rod 8 stops working and resets. Lock rod 10 is pulled out from lock seat 14, and sealed door 4 can be opened smoothly.

[0030] Operating principle and advantages: When the sealed door 4 is closed, its inner side presses against the abutment rod 12. The abutment rod 12 moves within the movable groove 19 of the fixed block 20 and compresses the compression spring 22. The rack 29 on the outer ring of the abutment rod 12 meshes with the gear 18 on one side of the rotating rod 5. The movement of the abutment rod 12 drives the gear 18 to rotate, thereby causing the rotating rod 5 to rotate within the rotating seats 6 on both sides. The sleeve block 7 on one side of the rotating rod 5 rotates with it. The rectangular groove 26 inside the sleeve block 7 drives the switch 23 of the main power supply 25 to operate, realizing the opening of the main power supply 25. At the same time, the contact rod 27 on one side of the rotating rod 5 is in contact with the bottom of the contact plate 24. The contact plate 24 is electrically connected to the electric push rod 8, triggering the electric push rod 8 to work. Its output shaft pushes the push plate 9, causing the locking rod 10 to slide into the lock seat 14 inside the sealed door 4, completing the locking of the sealed door 4. To open / close the door, the lock rod 10 can be opened. Open the sealing door 4, pull the handle 3 to rotate the sealing door 4, no longer pressing against the abutment rod 12, the compression spring 22 resets and pushes the abutment rod 12 back, the rack 29 drives the gear 18 to rotate in the opposite direction, the rotating rod 5 reverses accordingly, the sleeve block 7 drives the main power switch 23 to close, the contact rod 27 separates from the contact plate 24, the electric push rod 8 stops working and resets, the locking rod 10 is pulled out from the lock seat 14, and the sealing door 4 can be opened smoothly. When the buffer structure 1 at the top of the box 28 is subjected to external impact, the damping plate 15 is pressed and the buffer spring 16 in the buffer groove 17 contracts to absorb the impact energy. The high-strength anti-collision plates 2 on both sides and one end of the box 28 directly resist external collisions and protect the internal components. The stabilizing block 13 supports and stabilizes the abutment rod 12, and the stop block 21 prevents the abutment rod 12 from moving excessively and ensures the precise operation of each component.

Claims

1. An interlocking device for a self-locking explosion-proof control cabinet, comprising a housing (28), characterized in that: The upper end of the box (28) is provided with a buffer structure (1). One end of the box (28) is hinged with a sealing door (4). A fixing block (20) is fixedly installed on one side inside the box (28). A stop rod (12) is movably installed inside the fixing block (20). A stabilizing block (13) is sleeved on the outer ring of the stop rod (12). A rack (29) is provided on the outer ring of the upper end of the stop rod (12). Rotating rods (5) are rotatably installed on both sides inside the box (28). A gear (18) is provided on the outer ring of the rotating rod (5) on the side close to the stop rod (12). An installation plate (11) is fixedly installed inside the box (28). A main power supply (25) is fixedly installed at the center of the upper end of the installation plate (11). The main power supply (25) is far from the center of the box (28). A switch (23) is provided at one end of the mounting plate (11). A sleeve block (7) is fitted around the outer ring of the rotating rod (5) near the main power supply (25). A rectangular groove (26) is provided on one side of the sleeve block (7). One end of the switch (23) is located in the rectangular groove (26). A contact plate (24) is fixedly installed on the upper end of the mounting plate (11) away from the main power supply (25). A contact rod (27) is provided inside one side of the rotating rod (5). An electric push rod (8) is fixedly installed on one side of the box (28). A push plate (9) is installed on the output shaft of the electric push rod (8). A locking rod (10) is fixedly installed on one side of the push plate (9). A lock seat (14) is fixedly installed on one end of the inner side of the sealing door (4).

2. The interlocking device for a self-locking explosion-proof control cabinet according to claim 1, characterized in that: The buffer structure (1) includes a damping plate (15), a buffer spring (16) and a buffer groove (17). The upper end of the box (28) is provided with a buffer groove (17). Multiple buffer springs (16) are fixedly installed inside the buffer groove (17). The damping plate (15) is fixedly installed at the end of the buffer spring (16) away from the buffer groove (17).

3. The interlocking device for a self-locking explosion-proof control cabinet according to claim 1, characterized in that: The fixed block (20) has a movable groove (19) inside, and a compression spring (22) is fixedly installed inside the movable groove (19). The end of the compression spring (22) away from the movable groove (19) is fixedly installed at one end of the abutment (12).

4. The interlocking device for a self-locking explosion-proof control cabinet according to claim 1, characterized in that: Rotating seats (6) are fixedly installed on both sides inside the box (28). The two ends of the rotating rod (5) are rotatably installed inside the rotating seat (6). A stop block (21) is provided on the outer ring of one end of the abutment rod (12) near the fixed block (20). The stop block (21) is attached to one end of the fixed block (20).

5. The interlocking device for a self-locking explosion-proof control cabinet according to claim 1, characterized in that: The end of the abutment (12) away from the fixing block (20) rests against the inside of the sealing door (4), and one end of the stabilizing block (13) is fixedly installed inside the box (28).

6. The interlocking device for a self-locking explosion-proof control cabinet according to claim 1, characterized in that: High-strength anti-collision plates (2) are fixedly installed on both sides and one end of the box (28), and a handle (3) is provided on the side of the sealed door (4) away from the box (28).

7. The interlocking device for a self-locking explosion-proof control cabinet according to claim 1, characterized in that: The contact rod (27) is attached to the bottom of the contact plate (24), the contact plate (24) is electrically connected to the electric push rod (8), and the locking rod (10) is slidably installed inside the lock seat (14).

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