Safety locking device for sealing door of environment-friendly cabinet

Abstract

The utility model relates to the technical field of environment-friendly cabinets, and discloses a safety locking device of an environment-friendly cabinet sealing door, which comprises a support frame and a sealing door plate, a case is fixedly arranged on one side of the support frame, rotating shafts are rotatably arranged at the top and the bottom of the case, a spring bolt is fixedly arranged at one end of each rotating shaft, and a locking nut is fixedly arranged at the other end of each rotating shaft. A motor for driving one of the rotating shafts is fixedly mounted at the top end of the machine box, a transmission assembly for transmitting the two rotating shafts is arranged in the machine box, and pressure transmission assemblies for transmitting pressure to the sealing door plate are arranged at the four corners of the supporting frame. One rotating shaft is driven by the motor, the transmission assembly can control the two lock tongues to rotate at the same time through the two rotating shafts, the structure is simple, operation is convenient, the two lock tongues can increase fulcrums between the supporting frame and the environment-friendly cabinet, the fixing effect of the supporting frame can be guaranteed, safety and reliability are achieved, aging and failure are not prone to occurring, and the automatic unlocking phenomenon is avoided.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection cabinet technology, specifically a safety locking device for the sealed door of an environmental protection cabinet. Background Technology

[0002] An environmental protection cabinet is a sealed device specifically designed for storing or handling toxic, harmful, flammable, explosive, or biological pollutants. Through its sealed structure, air filtration system, and safety protection devices, it prevents the leakage of harmful substances, ensuring personnel safety and environmental compliance. It is suitable for environmental protection cabinets in chemical, medical, or laboratory settings where high sealing and safety requirements are necessary. It can effectively prevent accidental opening of the door due to misoperation, ensuring safe use.

[0003] Traditional locks cannot detect the tightness of the door and cabinet when closing, which may lead to the leakage of harmful gases. Mechanical locks are prone to failure due to external impact or aging. Electromagnetic locks automatically unlock when power is cut off, which poses a safety hazard. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a safety locking device for the sealed door of an environmental protection cabinet, which has the advantages of ensuring the sealing performance of the door and providing good security, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a safety locking device for the sealed door of an environmental protection cabinet, comprising a support frame and a sealed door panel. A housing is fixedly installed on one side of the support frame. Rotary shafts are rotatably provided on the top and bottom of the housing. A locking tongue is fixedly provided at one end of each rotating shaft. A motor for driving one of the rotating shafts is fixedly installed on the top of the housing. A transmission assembly for transmitting power to the two rotating shafts is provided inside the housing. Pressure transmission assemblies for transmitting pressure to the sealed door panel are provided at the four corners of the support frame. Electromagnets for attracting the sealed door panel are fixedly installed on the top and bottom of one side of the support frame.

[0006] As a preferred technical solution of this utility model, the transmission assembly includes a transmission shaft, with a seated bearing rotatably connected to the top and bottom of the transmission shaft. The seated bearing is fixedly connected to the inside of the housing by bolts. Helical gear one is fixedly provided at both ends of the transmission shaft, and helical gear two, which meshes with helical gear one, is fixedly provided on the surface of the shaft.

[0007] As a preferred embodiment of this utility model, an adsorption plate is fixedly provided on the top of one side and the bottom of the other side of the sealing door panel, and the adsorption plate is magnetically connected to an electromagnet.

[0008] As a preferred embodiment of this utility model, an inspection port is provided on one side of the chassis, and a cover is snapped onto one side of the inspection port.

[0009] As a preferred technical solution of this utility model, the pressure transmission component includes a guide post, and the four corners of the support frame are provided with column grooves that are slidably connected to the guide post. A spring is sleeved on the surface of the guide post, and a baffle plate is fixedly provided at one end of the guide post. A pressure sensor is fixedly provided on one side of the baffle plate, and one side of the pressure sensor is fixedly connected to one side of the sealing door panel.

[0010] As a preferred embodiment of this utility model, the spring is located between the first baffle and the support frame, and the other end of the guide post is fixedly provided with a second baffle, the diameter of which is larger than the diameter of the column groove.

[0011] As a preferred embodiment of this utility model, the top and bottom of one side of the support frame are provided with grooves, and a hinge is fixedly installed inside the groove.

[0012] As a preferred embodiment of this utility model, the inner wall of the sealing door panel is fixedly provided with a limiting frame, and a sealing gasket is engaged with the surface of the limiting frame.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The safety locking device of the sealed door of the environmental protection cabinet is driven by a motor to one of the rotating shafts. The transmission component can control the two locking tongues to rotate simultaneously through the two rotating shafts. The structure is simple and easy to operate. The two locking tongues can increase the fulcrum between the support frame and the environmental protection cabinet, which can ensure the fixation effect of the support frame, and is safe and reliable. It is not easy to age or fail, avoids the phenomenon of automatic unlocking, and reduces safety hazards.

[0015] 2. The sealing door panel is attracted by an electromagnet, causing it to retract and facilitating the closure of the support frame. Once the support frame is closed, the attraction to the sealing door panel stops. The support frame can evenly transmit pressure to the four corners of the sealing door panel through the pressure transmission component, maintaining the stability of the pressure on the sealing door panel, preventing the sealing door panel from tilting, improving the fit between the sealing door panel and the environmental protection cabinet, avoiding the leakage of harmful gases, and simultaneously detecting the tightness of the seal between the sealing door panel and the environmental protection cabinet. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0017] Figure 2 This is the second structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 4This is a schematic diagram of the internal structure of the chassis of this utility model;

[0020] Figure 5 This is a schematic diagram of the transmission component of this utility model;

[0021] Figure 6 This is a schematic diagram of the pressure transmission component of this utility model.

[0022] In the diagram: 1. Support frame; 2. Hinge; 3. Chassis; 4. Cover; 5. Motor; 6. Transmission assembly; 601. Drive shaft; 602. Bearing with seat; 603. Helical gear one; 7. Rotating shaft; 8. Helical gear two; 9. Locking tongue; 10. Electromagnet; 11. Adsorption plate; 12. Sealing door panel; 13. Pressure transmission assembly; 1301. Guide post; 1302. Spring; 1303. Baffle one; 1304. Pressure sensor; 1305. Baffle two; 14. Inspection port; 15. Limiting frame; 16. Sealing gasket; 17. Column groove. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-6 The safety locking device for the sealed door of the environmental protection cabinet includes a support frame 1 and a sealed door panel 12. A housing 3 is fixedly installed on one side of the support frame 1. A rotating shaft 7 is rotatably installed on the top and bottom of the housing 3. A locking tongue 9 is fixedly installed at one end of the rotating shaft 7. A motor 5 is fixedly installed on the top of the housing 3 to drive one of the rotating shafts 7. A transmission component 6 is installed inside the housing 3 to transmit power to the two rotating shafts 7. The motor 5 drives one of the rotating shafts 7. The transmission component 6 can control the two locking tongues 9 to rotate simultaneously through the two rotating shafts 7. The structure is simple and easy to operate. The two locking tongues 9 can increase the fulcrum between the support frame 1 and the environmental protection cabinet, which is safe and reliable and can ensure the fixing effect of the support frame 1. Pressure transmission components 13 that transmit pressure to the sealed door panel 12 are provided at the four corners of the support frame 1. Electromagnets 10 that attract the sealed door panel 12 are fixedly installed on the top and bottom of one side of the support frame 1.

[0025] In this embodiment, preferably, the transmission assembly 6 includes a transmission shaft 601, with a bearing 602 rotatably connected to both the top and bottom of the transmission shaft 601. The bearing 602 is fixedly connected to the inside of the housing 3 by bolts. Both ends of the transmission shaft 601 are fixedly provided with a helical gear 603. The surface of the rotating shaft 7 is fixedly provided with a helical gear 8 that meshes with the helical gear 603. The bearing 602 can provide stable support for the transmission shaft 601. By driving one of the rotating shafts 7 with the motor 5, the helical gear 603 and the helical gear 8 can drive the other rotating shaft 7 to rotate, so that the two locking tongues 9 can be controlled simultaneously.

[0026] In this embodiment, preferably, the pressure transmission assembly 13 includes a guide post 1301. The four corners of the support frame 1 are provided with grooves 17 that slidably connect with the guide post 1301. A spring 1302 is fitted onto the surface of the guide post 1301. A baffle plate 1303 is fixedly mounted at one end of the guide post 1301. A pressure sensor 1304 is fixedly mounted on one side of the baffle plate 1303. One side of the pressure sensor 1304 is fixedly connected to one side of the sealing door panel 12. The spring 1302 is located between the baffle plate 1303 and the support frame 1. The other end of the guide post 1301 is fixedly provided with a baffle plate 1305. The diameter of the baffle plate 1305 is larger than the diameter of the column groove 17. The sealing door panel 12 is connected to the support frame 1 through the guide post 1301, avoiding the rigid connection between the sealing door panel 12 and the support frame 1. The spring 1302 can transmit the pressure of the support frame 1 to the four corners of the sealing door panel 12 respectively, which can maintain the stability of the pressure on the sealing door panel 12, prevent the sealing door panel 12 from tilting, and improve the fit between the sealing door panel 12 and the environmental protection cabinet.

[0027] In this embodiment, preferably, an adsorption plate 11 is fixedly provided on the top of one side and the bottom of the other side of the sealing door panel 12. The adsorption plate 11 is magnetically connected to the electromagnet 10. A limiting frame 15 is fixedly provided on the inner wall of the sealing door panel 12. A sealing gasket 16 is snapped onto the surface of the limiting frame 15. The limiting frame 15 can limit the sealing gasket 16. The sealing gasket 16 can seal the sealing door panel 12 and the environmental protection cabinet. By controlling the electromagnet 10 to adsorb the adsorption plate 11, the distance between the sealing door panel 12 and the support frame 1 can be shortened. The sealing door panel 12 can retract, which can ensure the closing activity of the sealing door panel 12.

[0028] In this embodiment, preferably, an inspection port 14 is provided on one side of the chassis 3, and a cover 4 is snapped onto one side of the inspection port 14. By opening the cover 4, the internal maintenance and repair of the chassis 3 can be carried out through the inspection port 14.

[0029] In this embodiment, preferably, the top and bottom of one side of the support frame 1 are provided with grooves, and the inside of the grooves is fixedly fitted with hinges 2, which can be used to hinge the support frame 1 to the environmental protection cabinet.

[0030] In use, the support frame 1 is first installed on the environmental protection cabinet by the hinge 2. The guide post 1301 of the pressure transmission component 13 can slide the sealing door panel 12 to the support frame 1. Then, the electromagnet 10 is energized and made to be full of magnetism. The electromagnet 10 can attract the sealing door panel 12 through the adsorption plate 11, which can cause the sealing door panel 12 to retract and compress the spring 1302. After the sealing door panel 12 retracts, the support frame 1 can be closed.

[0031] After the support frame 1 is closed, the motor 5 drives one of the rotating shafts 7. The helical gear 603 and helical gear 8 of the transmission component 6 can drive the other rotating shaft 7 to rotate, which can simultaneously control the two locking tongues 9. The locking tongues 9 can be engaged with the lock of the environmental protection cabinet, thereby quickly locking the support frame 1. The two locking tongues 9 can increase the fulcrum between the support frame 1 and the environmental protection cabinet, which can ensure the fixing effect of the support frame 1, making it safe and reliable, not easy to age and fail, avoiding the phenomenon of automatic unlocking, and reducing safety hazards.

[0032] After the support frame 1 is locked, the control electromagnet 10 is de-energized, causing it to lose its magnetism. The spring 1302 can extend and reset, transmitting pressure to the four corners of the sealing door panel 12. This maintains the stability of the pressure on the sealing door panel 12, preventing it from tilting and improving the fit between the sealing door panel 12, the sealing gasket 16, and the environmental protection cabinet. This prevents the leakage of harmful gases inside the environmental protection cabinet. Furthermore, the pressure sensor 1304 can detect the pressure on the four corners of the sealing door panel 12, facilitating maintenance by staff in case of abnormal pressure.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Safety locking device for the sealing door of an environmental cabinet, comprising a support frame (1) and a sealing door panel (12), characterized in that: One side of the support frame (1) is fixedly provided with a machine box (3), the top and bottom of the machine box (3) are rotatably provided with rotating shafts (7), one end of the rotating shaft (7) is fixedly provided with a lock tongue (9), the top of the machine box (3) is fixedly installed with a motor (5) for driving one of the rotating shafts (7), the inside of the machine box (3) is provided with a transmission assembly (6) for transmitting the two rotating shafts (7), the four corners of the support frame (1) are provided with pressure transmission assemblies (13) for transmitting pressure to the sealing door plate (12), and the top of one side and the bottom of one side of the support frame (1) are fixedly provided with electromagnets (10) for adsorbing the sealing door plate (12).

2. A safety locking device for an environmentally protected cabinet door according to claim 1, characterized in that: The transmission assembly (6) comprises a transmission shaft (601), the top and bottom of the transmission shaft (601) are rotatably connected with a bearing with seat (602), the bearing with seat (602) is fixedly connected with the inside of the machine box (3) through bolts, and the two ends of the transmission shaft (601) are fixedly provided with bevel gears (603), and the surface of the rotating shaft (7) is fixedly provided with a bevel gear (8) meshed with the bevel gear (603).

3. The safety locking device for the sealable door of the environmentally friendly cabinet according to claim 1, characterized in that: The top and bottom of one side of the sealing door plate (12) are fixedly provided with adsorption plates (11), and the adsorption plates (11) are magnetically connected with the electromagnets (10).

4. The safety locking device for the sealable door of the environmentally friendly cabinet according to claim 1, characterized in that: One side of the machine box (3) is provided with an inspection opening (14), and one side of the inspection opening (14) is clamped and connected with a clamping cover (4).

5. The safety locking device for the sealable door of the environmentally friendly cabinet according to claim 1, characterized in that: The pressure transmission assembly (13) comprises a guide column (1301), the four corners of the support frame (1) are provided with column grooves (17) slidably connected with the guide column (1301), the surface of the guide column (1301) is sleeved with a spring (1302), one end of the guide column (1301) is fixedly provided with a baffle (1303), one side of the baffle (1303) is fixedly provided with a pressure sensor (1304), and one side of the pressure sensor (1304) is fixedly connected with one side of the sealing door plate (12).

6. A safety locking device for an environmentally protected cabinet door according to claim 5, characterized in that: The spring (1302) is located between the baffle (1303) and the support frame (1), the other end of the guide column (1301) is fixedly provided with a baffle (1305), and the diameter of the baffle (1305) is greater than the diameter of the column groove (17).

7. The safety locking device for the sealable door of the environmentally friendly cabinet according to claim 1, characterized in that: The top of one side of the support frame (1) and the bottom of one side are provided with grooves, and the hinges (2) are fixedly installed in the grooves.

8. The safety locking device for the sealable door of the environmentally friendly cabinet according to claim 1, characterized in that: The inner wall of the sealing door plate (12) is fixedly provided with a limiting frame (15), and the surface of the limiting frame (15) is clamped and connected with a sealing gasket (16).

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