Safety isolation cabinet with interlocking structure

Abstract

The utility model discloses the safe isolation cabinet with interlock structure in the dangerous article storage equipment technical field, including the isolation cabinet for the dangerous article of partition placement and install on the isolation cabinet for the door lock panel of unlocking, still include the rectangular through -hole of symmetrical opening on the door lock panel, the frame of symmetrical sliding track on the door lock panel, two groups of placement area are divided on the frame through the baffle. The utility model discloses through the first lever, the second lever of round ring misplacement setting is the power core, realizes the synchronous movement of sliding pole and frame, and through the linkage unlocking limiting buckle of second lever and third lever, the downlink limit of cooperation support pole, form the closed -loop control of ascending unlocking - in - place locking, downlink drive - limit limit, effectively solved the existing equipment state switching sticking, the problem of limiting invalidation, ensure the accurate alignment of lock cylinder spare and rectangular through -hole, improve the stability and reliability of unlocking operation.

Description

Technical Field

[0001] This utility model relates to the technical field of hazardous materials storage equipment, and in particular to a safety isolation cabinet with an interlocking structure. Background Technology

[0002] Safety isolation cabinets are specialized equipment designed for the standardized storage of flammable, explosive, corrosive, and toxic hazardous materials. They are widely used in chemical production workshops, research laboratories, pharmaceutical research institutions, and hazardous materials warehouses. Their core components include a sealed cabinet body, doors, sealing components, and safety protection structures. The cabinet body is typically made of high-strength, corrosion-resistant materials, and the interior can be divided into storage areas according to needs. Through physical isolation, hazardous materials are separated from the external environment, reducing the risks of evaporation and leakage. They also possess basic safety features such as fire resistance, corrosion resistance, and leak prevention, making them crucial equipment for ensuring personnel and environmental safety during the storage of hazardous materials.

[0003] In practical use, to facilitate the classified storage of different types and levels of hazardous materials, or to meet the needs of batch retrieval, some safety isolation cabinets adopt a double-door structure design. However, if the double-door structure lacks effective interlocking control, it is easy for operators to accidentally open both doors simultaneously. In this case, the hazardous materials inside the cabinet will be directly exposed to the external environment. A large leak of volatile gases may cause poisoning or explosions, while a leak of liquid hazardous materials may cause corrosion, pollution, or even trigger a chain of safety accidents. Therefore, an interlocking structure is a necessary configuration for double-door safety isolation cabinets. Its core function is to restrict the two doors from opening simultaneously through mechanical or electronic control, structurally avoiding the safety risks caused by misoperation and ensuring the safety of the storage and retrieval process of hazardous materials.

[0004] In the storage of hazardous materials and the operation of related equipment, certain problems exist. On the one hand, some equipment lacks effective interlocking constraint design in the unlocking operation, which can easily lead to unexpected unlocking due to human error or accidental contact, resulting in accidental exposure of hazardous areas. This may not only cause equipment operation interruption but also directly threaten the personal safety of operators, while increasing the risk of leakage and spread of hazardous media. On the other hand, there is a lack of precise linkage and coordination mechanism between the unlocking action and the sealing protection state. It often happens that the sealing protection is not closed in time after unlocking or that it can be forcibly unlocked while still in a sealed state, resulting in protection failure. Moreover, the stability of state switching during operation is insufficient, and it is easy to cause false triggering or structural jamming due to unreliable limit switches. It cannot meet the high requirements for operational safety, protective sealing and state controllability in hazardous materials storage scenarios, and it is difficult to ensure the long-term stable operation of equipment. Therefore, we urgently need a safety isolation cabinet with an interlocking structure to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a safety isolation cabinet with an interlocking structure. Through the linkage of a circular ring double lever + sliding lever + double locking structure, it achieves precise switching between the sealed / unlocked states of the frame, ensures stable alignment of the lock cylinder, and prevents unauthorized operation and accidental movement, thereby improving the safety of hazardous materials storage.

[0006] The purpose of this utility model is achieved as follows: it includes an isolation cabinet for partitioned placement of hazardous materials and a door lock panel installed on the isolation cabinet for unlocking, and also includes rectangular through holes symmetrically opened on the door lock panel, and a frame symmetrically sliding on a track on the door lock panel. The frame is divided into two sets of placement areas by a partition. One set of placement areas is fixedly connected to a sealing plate for sealing, and the other set of placement areas is fixedly connected to a lock cylinder for unlocking. The frame is moved by a switching component on the door lock panel.

[0007] Optionally, the switching component includes a circular hole in the center of the door lock panel, a circular ring rotatably connected inside the circular hole, and a first lever and a second lever fixedly and offsetly connected to the circular ring, the angle between the first lever and the second lever being in the range of 45°-60°.

[0008] Optionally, a sliding rod is slidably connected to the door lock panel via a slide rail, and both ends of the sliding rod are fixedly installed to the corresponding frame. A first limiting block is integrally formed on one side of the sliding rod, and a second limiting block is integrally formed symmetrically on the other side of the sliding rod.

[0009] Optionally, a support rod for supporting the sliding rod is fixedly connected to the door lock panel. When the first limiting block abuts against the support rod, the lock cylinder on the lower frame is located in the corresponding rectangular through hole.

[0010] Optionally, a third lever is rotatably connected to the door lock panel, and the end of the third lever is offset with a limiting buckle for supporting the sliding rod. When the second limiting block abuts against the limiting buckle, the lock cylinder on the upper frame is located in the corresponding rectangular through hole.

[0011] Optionally, a bracket is fixedly connected to the door lock panel, and a locking plate is installed on the bracket via a hydraulic rod. When the connection of the locking plate is inserted into the corresponding hole of the circular ring, a limiting zone is formed.

[0012] Optionally, the circular ring has an insertion hole in the middle, and the inner wall of the circular ring has placement holes equidistantly spaced in a ring. A push rod is provided inside the circular ring, and a spring is fixedly connected to the inner wall of the placement hole. The other end of the spring is connected to the push rod. When the unlocking member is inserted into the circular hole, the end of the push rod drives the locking plate to disengage from the circular ring to form an unlocking area.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model overcomes the defect of the existing technology where unlocking and sealing are disconnected by constructing an integrated interlocking mechanism of power transmission, latch linkage, and bidirectional limit. With the first and second levers set in a circular ring misalignment as the power core, it realizes the synchronous movement of the sliding rod and the frame, and unlocks the limit buckle through the linkage of the second and third levers. With the downward limit of the support rod, it forms a closed-loop control of upward unlocking-position locking and downward drive-limit limit. It effectively solves the problems of state switching jamming and limit failure in the existing equipment, ensures the precise alignment of the lock cylinder and the rectangular through hole, and improves the stability and reliability of the unlocking operation.

[0014] 2. This utility model strengthens safety protection through a double locking and exclusive unlocking design. Under normal conditions, the hydraulic rod drives the locking plate to lock the circular ring and the limit buckle to engage the sliding rod, forming a double anti-misoperation constraint. When unlocking, a special unlocking part needs to be inserted into the insertion hole of the circular ring, and the locking plate is pushed to unlock by pushing the push rod. This not only avoids unauthorized operation, but also prevents the sliding rod from moving accidentally after unlocking. At the same time, the spring reset ensures that the equipment automatically returns to the sealed state after operation, effectively reducing the risk of leakage of hazardous media and improving the safety level of hazardous materials storage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure provided by this utility model.

[0017] Figure 2 This is a first-view schematic diagram of the door lock panel structure provided by this utility model.

[0018] Figure 3 This is a schematic diagram of the second-view door lock panel structure provided by this utility model.

[0019] Figure 4 This is a schematic diagram of the third-view door lock panel structure provided by this utility model.

[0020] Figure 5 This is a partial cross-sectional structural schematic diagram provided by this utility model.

[0021] In the diagram: 1. Isolation cabinet; 2. Door lock panel; 3. Rectangular through hole; 4. Frame; 5. Sealing plate; 6. Lock cylinder; 7. Circular hole; 8. Circular ring; 9. First lever; 10. Second lever; 11. Sliding rod; 12. First limit block; 13. Second limit block; 14. Support rod; 15. Third lever; 16. Limit buckle; 17. Bracket; 18. Hydraulic rod; 19. Locking plate; 20. Insertion hole; 21. Placement hole; 22. Push-out rod; 23. Spring. Detailed Implementation

[0022] 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.

[0023] like Figure 1-5 As shown in the figure, the present invention provides a safety isolation cabinet 1 with an interlocking structure, including an isolation cabinet 1 for partitioning dangerous goods and a door lock panel 2 installed on the isolation cabinet 1 for unlocking.

[0024] Here, the isolation cabinet 1 uses internal partitions to divide independent storage areas, achieving physical isolation of different hazardous materials and avoiding risks such as chemical reactions and leakage caused by mixed storage; the door lock panel 2 serves as the mounting carrier for all interlocking components, especially providing a stable installation benchmark for the slide rail of the sliding rod 11 and the track of the frame 4, ensuring the linearity and stability of the sliding rod 11's vertical movement; the two work together to construct the basic architecture of partitioned storage and centralized interlocking, solving the problems of scattered hazardous materials management and disordered operation, and providing reliable support for the precise movement of the sliding rod 11.

[0025] It also includes rectangular through holes 3 symmetrically opened on the door lock panel 2, and a frame 4 symmetrically sliding on the track on the door lock panel 2. The frame 4 is divided into two sets of placement areas by a partition. One set of placement areas is fixedly connected to a sealing plate 5 for sealing, and the other set of placement areas is fixedly connected to a lock cylinder 6 for unlocking.

[0026] Here, the rectangular through hole 3 provides a precise channel for the exposure of the lock cylinder 6, ensuring that the unlocking signal can be effectively transmitted. The frame 4 integrates the "sealing plate 5" and the "lock cylinder 6" through the sliding track, and is fixedly linked with the sliding rod 11, so that the up and down movement of the sliding rod 11 can be directly converted into the synchronous movement of the frame 4, ensuring the synchronicity of the movement and state switching of the sliding rod 11. When the sliding rod 11 drives the frame 4 to slide, the switch between sealing protection and unlocking preparation can be completed quickly, establishing a forced linkage between unlocking and sealing.

[0027] The frame 4 is moved by a switching component on the door lock panel 2. The switching component includes a circular hole 7 in the middle of the door lock panel 2. A circular ring 8 is rotatably connected to the circular hole 7 through a bearing. The outer wall of the circular ring 8 is fixed radially and staggeredly welded with a first lever 9 and a second lever 10. The included angle between the first lever 9 and the second lever 10 is 45°-60°, which is used to transmit the driving force in segments, avoid excessive rotation in a single operation, and provide a precise power source for the up and down movement of the sliding rod 11.

[0028] Here, the circular hole 7 provides coaxial rotational support for the circular ring 8 via a bearing, ensuring the stability of power transmission and preventing the sliding rod 11 from jamming due to the offset of the circular ring 8. The circular ring 8, as the power core, drives the sliding rod 11 upwards or downwards via the staggered first lever 9 and second lever 10, preferably with an included angle within 45°, achieving segmented bidirectional power transmission and preventing overtravel of the sliding rod 11 caused by excessive rotation in a single operation. This structure precisely converts the rotational motion of the external unlocking component into the linear up-and-down movement of the sliding rod 11, forming a pre-constraint for the unlocking operation, effectively preventing unintended unlocking and reducing the risk of exposing dangerous areas.

[0029] A sliding rod 11 is slidably connected to the door lock panel 2 via a slide rail, and both ends of the sliding rod 11 are fixedly installed to the corresponding frame 4, so as to realize the synchronous up and down movement of the sliding rod 11 and the frame 4. A first limiting block 12 is integrally formed on one side of the sliding rod 11, and a second limiting block 13 is integrally formed symmetrically on the other side of the sliding rod 11. When the circular ring 8 rotates around its own axis, the first lever 9 rotates synchronously with the circular ring 8. By contacting the second limiting block 13 above, the sliding rod 11 can be moved linearly up or down along the slide rail, so as to realize the bidirectional movement control of the sliding rod 11.

[0030] Here, the sliding rod 11 achieves smooth vertical linear sliding via a slide rail and is fixedly linked to the frame 4, ensuring precise power transmission to the frame 4 and realizing integrated control of the sliding rod 11 movement, frame 4 switching, and lock cylinder 6 alignment. The first limit block 12 and the second limit block 13 are integrally formed on both sides of the sliding rod 11, respectively undertaking the functions of downward limit and upward force reception and upward limit triggering, avoiding power transmission deviation or limit failure caused by component loosening. This structure achieves precise conversion of rotational power, linear power, vertical movement of the sliding rod 11, and frame 4 state switching, improving the stability of state switching and solving the problems of jamming and false triggering in existing equipment.

[0031] A support rod 14 for limiting the downward limit position of the sliding rod 11 is welded and fixed to the inside of the door lock panel 2 via a bracket 17. The end of the support rod 14 is adapted to the side wall of the first limiting block 12. When the first lever 9 contacts the corresponding second limiting block 13, the sliding rod 11 moves downward, and the first limiting block 12 slides with the sliding rod 11 until it abuts against the end of the support rod 14. At this time, the lock cylinder 6 on the lower frame 4, which moves synchronously with the sliding rod 11, is precisely aligned directly below the corresponding rectangular through hole 3, completing the preparation for locking and unlocking the downward position of the sliding rod 11.

[0032] Here, the support rod 14 serves as a rigid limiting fulcrum for the downward movement of the sliding rod 11. By abutting against the first limiting block 12, it forcibly restricts the downward limit position of the sliding rod 11, ensuring that after the sliding rod 11 moves downward, the lock cylinder 6 of the lower frame 4 can be precisely aligned with the rectangular through hole 3. Its rigid structure avoids the deformation failure of the elastic limit, ensuring the consistency of the downward position of the sliding rod 11 each time, thereby ensuring the repeatability and accuracy of the unlocking operation and preventing unlocking failure or structural damage due to alignment deviation.

[0033] The inner side of the door lock panel 2 is rotatably connected to a third lever 15 via a pivot. The end of the third lever 15 is integrally formed with a limiting buckle 16 in a vertically offset direction to limit the upward limit position of the sliding rod 11. The inner wall of the limiting buckle 16 is adapted to the outer wall of the second limiting block 13. When the first lever 9 contacts the corresponding second limiting block 13 and pushes the sliding rod 11 to move upward, the lower second limiting block 13 slides with the sliding rod 11 until it abuts against the inner wall of the limiting buckle 16. At this time, the lock cylinder 6 on the upper frame 4, which moves synchronously with the sliding rod 11, is precisely aligned directly below the corresponding rectangular through hole 3, completing the preparation for locking and unlocking the upward position of the sliding rod 11.

[0034] Furthermore, the third lever 15 can rotate flexibly via a pivot, and the end-misaligned limiting buckle 16 can precisely engage with the lower second limiting block 13, forcibly limiting the upward limit position of the sliding rod 11, ensuring that after the sliding rod 11 moves upward, the locking cylinder 6 of the upper frame 4 can be precisely aligned with the rectangular through hole 3. This structure, through a rotatable limiting method, adapts to the bidirectional needs of the sliding rod 11 moving up and down, further improving the limiting reliability of the sliding rod 11's movement, and ensuring the stability and accuracy of switching between the upper and lower frames 4.

[0035] A bracket 17 is fixedly connected to the inside of the door lock panel 2 by screws. A hydraulic rod 18 is fixedly installed at the end of the bracket 17 by a flange. A locking plate 19 is fixedly connected to the telescopic end of the hydraulic rod 18 by bolts. A hole adapted to the locking plate 19 is opened on the outer wall of the circular ring 8. When the hydraulic rod 18 drives the locking plate 19 to extend and insert into the hole of the circular ring 8, a rigid limiting area is formed to restrict the rotation of the circular ring 8, thereby preventing the sliding rod 11 from moving unexpectedly.

[0036] Here, bracket 17 provides a stable mounting reference for hydraulic rod 18. Hydraulic rod 18 drives locking plate 19 to achieve rigid locking, restricting its rotation by inserting into the hole of circular ring 8, thereby preventing the sliding rod 11 from moving up and down unexpectedly from the power source. This effectively prevents accidental movement of sliding rod 11, avoiding exposure of lock cylinder 6 or failure of seal due to accidental movement of sliding rod 11, and improving the static safety of the equipment.

[0037] The circular ring 8 has an axially oriented insertion hole for inserting an external unlocking component, such as a special key. The inner wall of the circular ring 8 has four sets of equidistant placement holes 21. Each placement hole 21 contains a radially sliding push rod 22. A spring 23 is welded to the inner wall of the placement hole 21, and the other end of the spring 23 is welded to the end of the push rod 22. Under normal conditions, the spring 23 is in its normal state, causing the push rod 22 to be retracted into the placement hole 21 without affecting the locking plate 19's positioning. When the unlocking component is inserted into the insertion hole, it presses the push rod 22 to extend radially outward, and its end pushes the locking plate 19 away from the circular ring 8 until the locking plate 19 disengages from the hole in the circular ring 8, forming an unlocking area that allows the circular ring 8 to rotate, providing the necessary conditions for the sliding rod 11 to move up and down.

[0038] Here, the insertion hole 20 provides a dedicated insertion hole 20 for the unlocking component, ensuring the uniqueness of the up-and-down movement of the sliding rod 11 and preventing unauthorized operation. The placement hole 21 houses a spring 23 and a push rod 22. Under normal conditions, the spring 23 retracts the push rod 22, not affecting the locking plate 19's locking of the circular ring 8, thus ensuring the stability of the sliding rod 11 in a stationary state. When unlocking, the push rod 22 is compressed and extends, pushing the locking plate 19 away from the circular ring 8, releasing the rotation restriction on the circular ring 8, and providing the necessary conditions for the up-and-down movement of the sliding rod 11. At the same time, the restoring action of the spring 23 ensures that the push rod 22 is retracted after unlocking, and the locking plate 19 can relock the circular ring 8, allowing the sliding rod 11 to return to a stationary state. This forms a closed-loop control of unlocking component insertion – sliding rod 11 can move – sliding rod 11 locked after operation, enhancing protective sealing and operational controllability.

[0039] The working principle and usage process of this utility model are as follows: Under normal conditions, the hydraulic rod 18 drives the locking plate 19 to insert into the hole of the circular ring 8, restricting the rotation of the circular ring 8. At the same time, the limiting buckle 16 at the end of the third lever 15 abuts against the second limiting block 13 above the sliding rod 11. The double constraint ensures that the sliding rod 11 remains stationary. The sealing plate 5 on the frame 4 covers the rectangular through hole 3 of the door lock panel 2 to achieve sealing protection. When unlocking is required, the special unlocking part is inserted into the insertion hole of the circular ring 8. The unlocking part pushes out the push rod 22 and extends radially. The locking plate 19 is pushed away from the circular ring 8, releasing the rotational constraint of the circular ring 8. If the sliding rod 11 needs to rise, the unlocking component is rotated to drive the circular ring 8 to rotate counterclockwise. The first lever 9 on the outer side of the circular ring 8 rotates synchronously and contacts the second limiting block 13 above the sliding rod 11, applying an upward thrust to drive the sliding rod 11 to move upward along the slide rail. At the same time, the second lever 10, which is at a 45° angle to the first lever 9, rotates with the circular ring 8, contacts the third lever 15, and pushes it to rotate around the axis, causing the limiting buckle 16 to disengage from the upper first lever 9. The second limiting block 13 releases the upward locking constraint of the sliding rod 11 until the sliding rod 11 moves the upper frame 4 to the preset position. At this time, the second lever 10 and the third lever 15 disengage, and the third lever 15 resets under its own weight or the action of the return spring 23. The limiting buckle 16 abuts against the upper second limiting block 13 again, locking the position of the sliding rod 11. The lock cylinder 6 of the upper frame 4 is precisely aligned with the rectangular through hole 3 for unlocking operation. If the sliding rod 11 needs to move downward, the unlocking component is rotated in the opposite direction to drive the circular ring 8 to rotate clockwise. When the first lever 9 contacts the second limiting block 13 below the sliding rod 11 and pushes it down along the slide rail until the first limiting block 12 on one side of the sliding rod 11 abuts against the support rod 14, the sliding rod 11 stops moving, and the locking core 6 of the lower frame 4 aligns with the rectangular through hole 3 to complete the downward position locking; after unlocking, the unlocking part is taken out, and the push rod 22 is stored in the placement hole 21 under the reset action of the spring 23. The hydraulic rod 18 drives the locking plate 19 to re-insert into the hole of the circular ring 8, and the equipment returns to the normal sealing state.

[0040] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A safety isolation cabinet with an interlocking structure, comprising an isolation cabinet (1) for partitioning and storing hazardous materials and a door lock panel (2) installed on the isolation cabinet (1) for unlocking, characterized in that: It also includes rectangular through holes (3) symmetrically opened on the door lock panel (2), and a frame (4) symmetrically sliding on the track on the door lock panel (2). The frame (4) is divided into two sets of placement areas by a partition. One set of placement areas is fixedly connected to a sealing plate (5) for sealing, and the other set of placement areas is fixedly connected to a lock cylinder (6) for unlocking. The frame is moved by a switching component on the door lock panel (2).

2. A safety isolation cabinet with an interlocking structure according to claim 1, characterized in that: The switching component includes a circular hole (7) in the middle of the door lock panel (2), a circular ring (8) is rotatably connected in the circular hole (7), and a first lever (9) and a second lever (10) are fixed and misaligned on the circular ring (8). The included angle between the first lever (9) and the second lever (10) is 45°-60°.

3. A safety isolation cabinet with an interlocking structure according to claim 2, characterized in that: The door lock panel (2) is slidably connected to a sliding rod (11) via a slide rail, and the two ends of the sliding rod (11) are fixedly installed with the corresponding frame respectively. A first limiting block (12) is integrally formed on one side of the sliding rod (11), and a second limiting block (13) is integrally formed on the other side of the sliding rod (11).

4. A safety isolation cabinet with an interlocking structure according to claim 3, characterized in that: The door lock panel (2) is fixedly connected to a support rod (14) for supporting the sliding rod (11). When the first limiting block (12) abuts against the support rod (14), the lock cylinder (6) on the lower frame (4) is located in the corresponding rectangular through hole (3).

5. A safety isolation cabinet with an interlocking structure according to claim 4, characterized in that: The door lock panel (2) is rotatably connected to a third lever (15), and the end of the third lever (15) is offset to provide a limiting buckle (16) for supporting the sliding rod (11). When the second limiting block (13) abuts against the limiting buckle (16), the lock cylinder (6) on the upper frame (4) is located in the corresponding rectangular through hole (3).

6. A safety isolation cabinet with an interlocking structure according to claim 1, characterized in that: A bracket (17) is fixedly connected to the door lock panel (2). A locking plate (19) is telescopically installed on the bracket (17) via a hydraulic rod (18). When a circular ring (8) is inserted into the connection of the locking plate (19) to open a corresponding hole, a limiting area is formed.

7. A safety isolation cabinet with an interlocking structure according to claim 6, characterized in that: An insertion hole (20) is provided in the middle of the circular ring (8). Placement holes (21) are provided at equal intervals on the inner wall of the circular ring (8). A push rod (22) is provided inside the circular ring (8). A spring (23) is fixedly connected to the inner wall of the placement hole (21), and the other end of the spring (23) is connected to the push rod (22). When the unlocking member is inserted into the circular hole, the end of the push rod (22) drives the locking plate (19) to disengage from the circular ring (8) to form an unlocking area.

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