Protection mechanism of hazardous chemical substance storage cabinet

Abstract

The invention belongs to the technical field of storage mechanisms, and discloses a hazardous chemical substance storage cabinet protection mechanism which comprises a storage cabinet, layer plates and vertical plates are fixed in the storage cabinet and divide the storage cabinet into a plurality of storage cavities, cabinet doors are arranged at the positions, corresponding to the storage cavities, of the storage cabinet, and fixing mechanisms are arranged on the layer plates. The fixing mechanism comprises a plurality of clamping assemblies which are distributed in a circular array and used for clamping the sealed bottles and a linkage assembly used for controlling the multiple clamping assemblies to loosen / clamp the sealed bottles in the opening / closing process of the cabinet door. According to the sealing bottle clamping device, the purpose that the multiple clamping assemblies are matched and clamp the sealing bottle can be achieved when a worker opens the cabinet door, the purpose that the multiple clamping assemblies are matched and clamp the sealing bottle can be achieved when the cabinet door is closed, operation steps are simplified, and use convenience and safety are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of storage mechanisms, and in particular to a protective mechanism for a hazardous chemical storage cabinet. Background Art

[0002] Hazardous chemicals are chemicals or other chemicals that are toxic, corrosive, explosive, flammable, or combustion-supporting, potentially harmful to humans, facilities, and the environment. These chemicals include strong acids and alkalis, flammable and explosive reagents, and toxic gas cylinders. During storage, strict regulations must be adhered to, including leak prevention, collision prevention, tipping prevention, and constant temperature and humidity. In particular, external shaking of containers must be avoided, potentially preventing sealed bottles from tipping over, seal failure, or physical damage. Failure to do so could lead to safety incidents such as chemical leaks, combustion, and explosions.

[0003] The protection measures for hazardous chemical storage cabinets in existing general technologies mainly include: using fixed metal brackets to limit the bottles and using sponge pads to reduce collisions; some high-end cabinets are equipped with constant temperature control systems and gas leak alarm devices; and a few products are equipped with manual knob-type clamping structures. However, the hazardous chemical storage cabinets in the existing general technology have the following major defects: it is difficult to automatically fix and loosen the sealed bottles storing hazardous chemicals. When the staff needs to open the cabinet door to take out the hazardous chemicals in the sealed bottles, it takes a lot of time to release the fixing structure of the sealed bottles, and the operation is relatively cumbersome. When putting the hazardous chemicals back into the sealed bottles after use, the staff may forget to fix the sealed bottles, which will cause the sealed bottles to fall over when the storage cabinet is hit, thereby causing a dangerous situation. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a protection mechanism for a hazardous chemical storage cabinet.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: a protective mechanism for a hazardous chemical storage cabinet, including a storage cabinet, with shelves and vertical plates fixed inside the storage cabinet, the shelves and vertical plates dividing the storage cabinet into multiple storage cavities, cabinet doors are provided at positions corresponding to the storage cavities, and a fixing mechanism is provided on the shelves. The fixing mechanism includes multiple groups of clamping components distributed in a circular array and used to clamp sealed bottles, and a linkage component for controlling the multiple groups of clamping components to loosen / clamp the sealed bottles during the opening / closing process of the cabinet door.

[0006] By adopting the above technical solution, when a worker opens the cabinet door to access hazardous chemicals in a sealed bottle, multiple clamping assemblies, working in conjunction with the linkage assembly, automatically loosen the sealed bottle. This replaces the traditional method of using metal brackets to limit the position of the bottle, making it easier for workers to quickly access hazardous chemicals in the sealed bottle. Furthermore, when the worker has finished using the hazardous chemicals in the sealed bottle and returns it to its original location, the multiple clamping assemblies, working in conjunction with the linkage assembly, securely clamp the bottle. This reduces the chance of the cabinet tipping over if the worker forgets to secure the bottle after using it, thus ensuring safety.

[0007] Furthermore, a central groove and a slide groove are provided on the top of the shelf. There are four slide grooves and they are evenly distributed about the central groove. The slide groove on the side close to the cabinet door is perpendicular to the cabinet door. The number of groups of clamping assemblies is equal to the number of slide grooves and their positions correspond one to one. The clamping assembly includes a T-shaped slider that slides with the slide groove, a connecting rod that is provided on the T-shaped slider and slides with it, a tightening roller provided at one end of the connecting rod close to the central groove, a movable plate fixed to the end of the connecting rod away from the central groove, and a lower spring that is sleeved on the connecting rod and fixed between the T-shaped slider and the movable plate. The linkage assembly includes a transmission unit and a linkage unit. The transmission unit includes a horizontal bidirectional screw rotatably installed in the shelf and parallel to the cabinet door, a longitudinal screw rotatably installed in the shelf and perpendicular to the horizontal bidirectional screw, a driven bevel gear fixedly sleeved on the horizontal bidirectional screw and located in the center groove, and an active bevel gear fixed to one end of the longitudinal screw located in the center groove and meshing with the driven bevel gear. The axis of the horizontal bidirectional screw and the axis of the longitudinal screw are both horizontal, and the horizontal bidirectional screw is provided with two sections of threads with equal pitch and opposite rotation directions. The two sections of the thread of the horizontal bidirectional screw are located in two opposite sliding grooves, and the horizontal bidirectional screw passes through one group of T-shaped sliders and is threadedly connected; the thread of the longitudinal screw is located in a sliding groove perpendicular to the side door, and the longitudinal screw passes through another group of T-shaped sliders and is threadedly connected. The longitudinal screw and the active bevel gear are both provided with two and are symmetrically distributed on both sides of the horizontal bidirectional screw. The linkage unit is used to control the rotation of the longitudinal screw close to the cabinet door side during the opening / closing process of the cabinet door.

[0008] By adopting the above technical solution, when the staff performs the operation of opening or closing the cabinet door, the linkage unit drives the longitudinal screw near the cabinet door to rotate, thereby causing the active bevel gear at the end of the longitudinal screw to drive the driven bevel gear meshing with it and the horizontal bidirectional screw fixed to the driven bevel gear to rotate. Since the two longitudinal screws are respectively threadedly connected to the two T-shaped sliders, the horizontal bidirectional screws are respectively threadedly connected to the T-shaped sliders on both sides, and the four T-shaped sliders are respectively slidably engaged with the four sliding grooves, the four T-shaped sliders move toward the side away from or close to the center groove, and the four clamping rollers cooperate to loosen or clamp the sealed bottle. The lower spring provides a certain elastic force, so that the four clamping rollers cooperate and achieve the purpose of clamping and fixing sealed bottles of different sizes or shapes.

[0009] Furthermore, a rotating shaft fixed to the cabinet door is provided through the side wall of the cabinet door near its bottom, and the cabinet door is magnetically attracted to the cabinet body of the storage cabinet near its top. A handle is fixed to the side of the cabinet door away from the storage cabinet, and a lower trough body and an upper trough body connected to the top of the lower trough body are provided on the inner side of the cabinet door at a position corresponding to the longitudinal screw. The linkage unit includes a worm fixedly mounted on the rotating shaft and located in the lower trough body, a vertical plate fixed on the top of the shelf near the side door, a rotating rod running through the vertical plate and rotatably connected, a worm gear fixed at one end of the rotating rod and located in the upper trough body, and a large gear fixed at the other end of the rotating rod. The worm gear is meshed with the worm, and a mounting groove is provided on the top of the shelf corresponding to the large gear. The longitudinal screw near the cabinet door side extends into the mounting groove, and the linkage unit also includes a small gear fixedly mounted on the longitudinal screw in the mounting groove and meshing with the large gear.

[0010] By adopting the above technical solution, after the cabinet door is completely closed, the cabinet door and the cabinet body of the storage cabinet are magnetically attracted to ensure the stability of the cabinet door during the closing process, and the setting of the handle makes it convenient for the staff to close or open the cabinet door. In the process of closing or opening the cabinet door, the cabinet door rotates along the rotating shaft, so that the worm fixed to the rotating shaft, the worm wheel meshing with the worm, the rotating rod fixed to the worm wheel, the large gear fixed to the rotating rod, the small gear meshing with the rotating rod, and the longitudinal screw fixed to the small gear all rotate, thereby achieving the purpose of clamping or loosening the sealed bottle under the cooperation of multiple sets of transmission units. The transmission design of the large gear and the small gear makes it possible to control the longitudinal screw to rotate multiple times during the closing process of the cabinet door, thereby realizing the movement of the T-shaped slider toward the side close to or away from the center groove and ultimately achieving the purpose of clamping or loosening the sealed bottle.

[0011] Furthermore, the cross section of the connecting rod is rectangular, a balance rod is fixed to the side wall of the movable plate near its upper end, the upper and lower ends of the clamping roller are rotatably connected to the balance rod and the connecting rod respectively, and a rubber sleeve is fixed on the side wall of the clamping roller.

[0012] By adopting this technical solution, the rectangular connecting rod restricts the rotation of the pressing roller around the connecting rod. Combined with the balance bar, it ensures the stability of the pressing roller and its effective grip on the sealed bottle. The rubber sleeve allows the pressing roller to flexibly contact the sealed bottle, reducing friction damage between the roller and the sealed bottle.

[0013] Furthermore, a plurality of hollow holes are provided through the large gear, and the plurality of hollow holes are evenly distributed about the axis of the rotating rod.

[0014] By adopting the above technical solution, the hollow hole design has a good weight-reducing effect, ensuring the smooth operation of the system during the cabinet door opening and closing process.

[0015] Furthermore, a pressure sensor is embedded in the side wall of the storage cabinet, a controller electrically connected to the pressure sensor is fixed on the top of the storage cabinet, and a limiting mechanism for enhancing the stability of the sealed bottle is provided in the storage cabinet. The limiting mechanism includes a lifting assembly, and the lifting assembly includes a cylinder fixed to the top or bottom of the shelf in the storage cabinet and electrically connected to the controller, and a mounting plate fixed to the lower end of the piston rod of the cylinder. The limiting mechanism also includes a limiting assembly provided at the bottom of the mounting plate and used to press and limit the bottle cap of the sealed bottle.

[0016] Furthermore, there are multiple groups of limit assemblies evenly distributed around the sealed bottle. Each group of limit assemblies is provided with multiple limit assemblies arranged in a straight line. The limit assemblies include a sleeve fixed to the bottom of the mounting plate, a limit plate slidingly engaged with the inner wall of the sleeve, a limit rod fixed to the bottom of the limit plate, and an upper spring fixed between the top of the limit plate and the bottom of the mounting plate.

[0017] By adopting the above technical solution, after the cabinet door is closed, the pressure sensor monitors the pressure applied by the cabinet door, and the controller controls the operation of the cylinder to make the mounting plate drop, so that multiple sets of limit assemblies drop synchronously. After the lower end of the limit rod hits the top of the sealed bottle cap, the limit plate compresses the upper spring, and the limit rod at the edge is naturally extended without being restricted by the top of the sealed bottle cap. The limit rod close to the sealed bottle cap has a good limiting effect on the sealed bottle, and cooperates with the clamping assembly to achieve good fixation of the sealed bottle.

[0018] Furthermore, a ventilation cavity is provided in the cabinet body of the storage cabinet near the shelf, and an air inlet and an air outlet connected to the ventilation cavity are provided on the cabinet body of the storage cabinet. The air in the storage cavity enters the ventilation cavity through the air inlet and is discharged through the air outlet.

[0019] By adopting the above technical solution, the air in the storage cavity enters the ventilation cavity through the air inlet and is discharged through the air outlet, thereby ensuring the gas circulation in the storage cabinet and reducing the probability of danger occurring when taking hazardous chemicals due to toxic gases released from the storage cavity caused by different airflows.

[0020] Furthermore, the lower end of the limiting rod is hemispherical, the spacing between adjacent sleeves is 0.2-0.4 cm, and a rubber pad with a diameter greater than the width of the central groove is provided at the position corresponding to the central groove on the top of the layer board.

[0021] By adopting the above technical solution, multiple groups of limiting components can effectively fix and seal the bottle.

[0022] Furthermore, an environmental monitoring module electrically connected to the controller is installed in the ventilation cavity. The environmental monitoring module includes various organic matter measuring instruments for detecting the concentration of organic matter. The controller is integrated with a data processing unit, which can perform real-time analysis on the organic matter concentration data collected by the environmental monitoring module, generate a hazardous chemical storage environment safety report, and transmit it to the digital terminal of the protection mechanism of the hazardous chemical storage cabinet for staff to monitor.

[0023] In summary, the present invention has the following beneficial effects: 1. In this application, when the staff opens the cabinet door, multiple sets of clamping components can cooperate and clamp the sealed bottle. When the cabinet door is closed, multiple sets of clamping components can cooperate and clamp the sealed bottle, which simplifies the operation steps and improves the convenience and safety of use. 2. In the present application, when the staff performs the operation of opening or closing the cabinet door, the linkage unit drives the longitudinal screw near the cabinet door to rotate, thereby causing the active bevel gear at the end of the longitudinal screw to drive the driven bevel gear meshing with it and the horizontal bidirectional screw fixed to the driven bevel gear to rotate. Since the two longitudinal screws are respectively threadedly connected to the two T-shaped sliders, the horizontal bidirectional screws are respectively threadedly connected to the T-shaped sliders on both sides, and the four T-shaped sliders are respectively slidably engaged with the four slide grooves, the four T-shaped sliders move toward the side away from or close to the center groove, and the four clamping rollers cooperate to loosen or clamp the sealed bottle. The lower spring provides a certain elastic force, so that the four clamping rollers cooperate and achieve the purpose of clamping and fixing sealed bottles of different sizes or shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is a schematic diagram for highlighting the internal structure of a storage cabinet according to an embodiment of the present invention; Figure 3 yes Figure 2 Schematic diagram of the local structure from another perspective; Figure 4 This is a structural diagram of an embodiment of the present invention for highlighting the fixing mechanism; Figure 5 yes Figure 4 A magnified schematic diagram of point A in the middle; Figure 6This is a structural diagram highlighting a transmission unit according to an embodiment of the present invention; Figure 7 yes Figure 6 A magnified schematic diagram of point B in the middle; Figure 8 yes Figure 4 The enlarged schematic diagram of point C in the middle; Figure 9 It is a schematic diagram of an embodiment of the present invention used to highlight the ventilation cavity and its connection structure.

[0025] In the picture: 1. Storage cabinet; 11. Storage cavity; 12. Pressure sensor; 13. Controller; 14. Ventilation cavity; 15. Air inlet; 16. Air outlet; 2. Shelf; 21. Center groove; 22. Slide groove; 23. Mounting groove; 3. Vertical plate; 4. Cabinet door; 41. Rotating shaft; 42. Handle; 43. Lower trough; 44. Upper trough; 5. Fixing mechanism; 51. Clamping assembly; 511. T-shaped slider; 512. Connecting rod; 513. Clamping roller; 5131. Rubber sleeve; 514. Movable plate; 515. Lower spring; 52, linkage assembly; 521, transmission unit; 5211, horizontal and bidirectional screw; 5212, longitudinal screw; 5213, driven bevel gear; 5214, driving bevel gear; 522, linkage unit; 5221, worm; 5222, vertical plate; 5223, rotating rod; 5224, worm wheel; 5225, large gear; 52251, hollow hole; 5226, small gear; 6. Limiting mechanism; 61. Lifting assembly; 611. Cylinder; 612. Mounting plate; 62. Limiting assembly; 621. Sleeve; 622. Limiting plate; 623. Limiting rod; 624. Upper spring; 7. Balance bar; 8. Rubber pad. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] like Figure 1-9As shown, an embodiment of the present application discloses a protection mechanism for a hazardous chemical storage cabinet 1, including a storage cabinet 1, in which shelves 2 and vertical boards 3 are fixed, and the shelves 2 and vertical boards 3 divide the storage cabinet 1 into multiple storage cavities 11. Cabinet doors 4 are provided at positions corresponding to the storage cavities 11 in the storage cabinet 1, and a fixing mechanism 5 is provided on the shelf 2. The fixing mechanism 5 includes a plurality of groups of clamping components 51 distributed in a circular array and used to clamp sealed bottles, and a linkage component 52 for controlling the plurality of clamping components 51 to loosen / clamp the sealed bottles during the opening / closing process of the cabinet door 4.

[0028] When a worker opens cabinet door 4 to access hazardous chemicals in a sealed bottle, multiple clamping assemblies 51, in conjunction with linkage assembly 52, automatically loosen the sealed bottle. This changes the traditional method of using metal brackets to limit the position of the bottle, making it easier for workers to quickly access hazardous chemicals in the sealed bottle. When the worker has finished using the hazardous chemicals in the sealed bottle and returns it to its original position, multiple clamping assemblies 51, in conjunction with linkage assembly 52, securely clamp the bottle. This reduces the probability of the storage cabinet 1 tipping over after a collision if the worker forgets to secure the sealed bottle after using the hazardous chemicals, thus ensuring safety.

[0029] A central groove 21 and a slide groove 22 are provided at the top of the shelf 2. There are four slide grooves 22 and they are evenly distributed about the central groove 21. The slide groove 22 near the cabinet door 4 is perpendicular to the cabinet door 4. The number of groups of the clamping assembly 51 is equal to the number of the slide grooves 22 and the positions correspond one to one. The clamping assembly 51 includes a T-shaped slider 511 that slides with the slide groove 22, a connecting rod 512 that is provided on the T-shaped slider 511 and slides with it, a clamping roller 513 that is provided at one end of the connecting rod 512 near the central groove 21, a movable plate 514 fixed to the end of the connecting rod 512 away from the central groove 21, and a lower spring 515 that is sleeved on the connecting rod 512 and fixed between the T-shaped slider 511 and the movable plate 514. The linkage assembly 52 includes a transmission unit 521 and a linkage unit 522. The transmission unit 521 includes a horizontal bidirectional screw 5211 rotatably mounted in the layer 2 and parallel to the cabinet door 4, a vertical screw 5212 rotatably mounted in the layer 2 and perpendicular to the horizontal bidirectional screw 5211, a driven bevel gear 5213 fixedly sleeved on the horizontal bidirectional screw 5211 and located in the center groove 21, and a driving bevel gear 5214 fixed to one end of the vertical screw 5212 located in the center groove 21 and meshing with the driven bevel gear 5213. The axis of the horizontal bidirectional screw 5211 and the axis of the vertical screw 5212 are both horizontal. The horizontal bidirectional screw 52 11 is provided with two sections of threads with equal pitch and opposite rotation directions, the two sections of the thread of the horizontal bidirectional screw 5211 are located in two opposite sliding grooves 22, the horizontal bidirectional screw 5211 passes through one group of T-shaped sliders 511 and is threadedly connected; the thread of the longitudinal screw 5212 is located in the sliding groove 22 perpendicular to the side door, the longitudinal screw 5212 passes through the other group of T-shaped sliders 511 and is threadedly connected, two longitudinal screws 5212 and two active bevel gears 5214 are each provided and are symmetrically distributed on both sides of the horizontal bidirectional screw 5211, and the linkage unit 522 is used to control the rotation of the longitudinal screw 5212 close to the side of the cabinet door 4 during the opening / closing process of the cabinet door 4.

[0030] When the staff performs the operation of opening or closing the cabinet door 4, the linkage unit 522 drives the longitudinal screw 5212 near the cabinet door 4 to rotate, thereby causing the active bevel gear 5214 at the end of the longitudinal screw 5212 to drive the driven bevel gear 5213 meshing with it and the horizontal bidirectional screw 5211 fixed to the driven bevel gear 5213 to rotate. Since the two longitudinal screws 5212 are respectively threadedly connected to the two T-shaped sliders 511, and the horizontal bidirectional screws 5211 are respectively threadedly connected to the T-shaped sliders 511 on both sides, and the four T-shaped sliders 511 are respectively slidably engaged with the four chute 22, the four T-shaped sliders 511 move toward the side away from or close to the center groove 21, and the four holding rollers 513 cooperate to loosen or clamp the sealed bottle. The lower spring 515 provides a certain elastic force, so that the four holding rollers 513 cooperate and achieve the purpose of clamping and fixing sealed bottles of different sizes or shapes.

[0031] The side wall of the cabinet door 4 is provided with a rotating shaft 41 fixed to the cabinet door 4 near its bottom. The cabinet door 4 is magnetically attracted to the cabinet body of the storage cabinet 1 near its top. A handle 42 is fixed to the side of the cabinet door 4 away from the storage cabinet 1. A lower groove 43 and an upper groove 44 connected to the top of the lower groove 43 are provided at a position corresponding to the longitudinal screw 5212 on the inner side of the cabinet door 4. The linkage unit 522 includes a worm 5221 fixedly sleeved on the rotating shaft 41 and located in the lower groove 43, a vertical plate 5222 fixed on the top of the shelf 2 near the side door, and a vertical plate 5222 provided thereon. 222 and a rotating rod 5223 that is rotatably connected, a worm gear 5224 fixed to one end of the rotating rod 5223 and located in the upper groove body 44, and a large gear 5225 fixed to the other end of the rotating rod 5223, the worm gear 5224 is engaged with the worm 5221, and a mounting groove 23 is provided at a position corresponding to the large gear 5225 on the top of the shelf 2, and the longitudinal screw 5212 close to the side of the cabinet door 4 extends into the mounting groove 23. The linkage unit 522 also includes a small gear 5226 fixed on the longitudinal screw 5212 in the mounting groove 23 and engaged with the large gear 5225.

[0032] After the cabinet door 4 is fully closed, it is magnetically attracted to the cabinet body of the storage cabinet 1 to ensure stability during the closing process. The provision of the handle 42 facilitates the staff to close or open the cabinet door 4. During the closing or opening process, the cabinet door 4 rotates along with the rotating shaft 41, thereby causing the worm 5221 fixed to the rotating shaft 41, the worm gear 5224 meshing with the worm 5221, the rotating rod 5223 fixed to the worm gear 5224, the large gear 5225 fixed to the rotating rod 5223, the small gear 5226 meshing with the rotating rod 5223, and the longitudinal screw 5212 fixed to the small gear 5226 to rotate, thereby achieving the purpose of clamping or loosening the sealed bottle under the coordinated action of the multiple transmission units 521. The transmission design of the large gear 5225 and the small gear 5226 enables the longitudinal screw 5212 to be controlled to rotate multiple times during the closing process of the cabinet door 4, thereby enabling the T-shaped slider 511 to move toward or away from the side of the center groove 21 and ultimately achieve the purpose of clamping or loosening the sealed bottle.

[0033] The connecting rod 512 has a rectangular cross-section. A balance bar 7 is fixed to the sidewall of the movable plate 514 near its upper end. The upper and lower ends of the abutting roller 513 are rotatably connected to the balance bar 7 and the connecting rod 512, respectively. A rubber sleeve 5131 is fixedly sleeved on the sidewall of the abutting roller 513. The rectangular connecting rod 512 restricts the rotation of the abutting roller 513 around the connecting rod 512. This, in conjunction with the balance bar 7, ensures the stability of the abutting roller 513 and its effective grip on the sealed bottle. The rubber sleeve 5131 ensures flexible contact between the abutting roller 513 and the sealed bottle, reducing frictional damage.

[0034] The large gear 5225 is provided with a plurality of hollow holes 52251, which are evenly distributed about the axis of the rotating rod 5223. The design of the hollow holes 52251 plays a good weight reduction role, ensuring the smoothness of the system operation during the opening and closing of the cabinet door 4.

[0035] A pressure sensor 12 is embedded in the side wall of the storage cabinet 1, and a controller 13 electrically connected to the pressure sensor 12 is fixed on the top of the storage cabinet 1. A limiting mechanism 6 for enhancing the stability of the sealed bottle is provided in the storage cabinet 1. The limiting mechanism 6 includes a lifting assembly 61. The lifting assembly 61 includes a cylinder 611 fixed to the top of the storage cabinet 1 or the bottom of the shelf 2 and electrically connected to the controller 13, and a mounting plate 612 fixed to the lower end of the piston rod of the cylinder 611. The limiting mechanism 6 also includes a limiting assembly 62 provided at the bottom of the mounting plate 612 and used to press and limit the bottle cap of the sealed bottle. There are multiple groups of limiting components 62 that are evenly distributed around the sealed bottle. Each group of limiting components 62 is provided with multiple and arranged in a straight line. The limiting components 62 include a sleeve 621 fixed to the bottom of the mounting plate 612, a limiting plate 622 slidingly engaged with the inner wall of the sleeve 621, a limiting rod 623 fixed to the bottom of the limiting plate 622, and an upper spring 624 fixed between the top of the limiting plate 622 and the bottom of the mounting plate 612.

[0036] After the cabinet door 4 is closed, the pressure sensor 12 monitors the pressure exerted by the cabinet door 4, and the controller 13 controls the operation of the cylinder 611 and causes the mounting plate 612 to descend, thereby causing multiple groups of limiting components 62 to descend synchronously. After the lower end of the limiting rod 623 hits the top of the sealed bottle cap, the limiting plate 622 compresses the upper spring 624, and the limiting rod 623 at the edge naturally extends without being restricted by the top of the sealed bottle cap. The limiting rod 623 close to the sealed bottle cap has a good limiting effect on the sealed bottle, and cooperates with the clamping component 51 to achieve good fixation of the sealed bottle.

[0037] A ventilation cavity 14 is provided within the cabinet body of storage cabinet 1 near shelf 2. The cabinet body of storage cabinet 1 is provided with an air inlet 15 and an air outlet 16 communicating with ventilation cavity 14. Air within storage cavity 11 enters ventilation cavity 14 through air inlet 15 and is exhausted through air outlet 16. This ensures air circulation within storage cabinet 11 and reduces the possibility of toxic gases released by hazardous chemicals filling storage cavity 11 due to varying airflow, which could lead to danger when accessing hazardous chemicals.

[0038] In this embodiment, the lower end of the limit rod 623 is hemispherical, and the spacing between adjacent sleeves 621 is 0.2-0.4 cm. A rubber pad 8 with a diameter greater than the width of the central groove 21 is provided at the top of the shelf 2 corresponding to the central groove 21. An environmental monitoring module electrically connected to the controller 13 is installed within the ventilation cavity 14. The environmental monitoring module includes various organic matter measuring instruments for detecting organic matter concentrations. The controller 13 integrates a data processing unit (the integrated data processing unit, organic matter measuring instruments, and environmental monitoring module are not shown in the figure). This unit is capable of performing real-time analysis of organic matter concentration data collected by the environmental monitoring module, generating a hazardous chemical storage environment safety report, and transmitting it to a digital terminal used by personnel to monitor the protective mechanism of the hazardous chemical storage cabinet 1.

[0039] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A protective mechanism for a hazardous chemical storage cabinet (1), comprising a storage cabinet (1), wherein a layer plate (2) and a vertical plate (3) are fixed in the storage cabinet (1), wherein the layer plate (2) and the vertical plate (3) divide the storage cabinet (1) into a plurality of storage cavities (11), and a cabinet door (4) is provided at a position corresponding to the storage cavity (11) of the storage cabinet (1), wherein: A fixing mechanism (5) is provided on the shelf (2), and the fixing mechanism (5) comprises a plurality of clamping assemblies (51) distributed in a circular array and used for clamping the sealed bottle, and a linkage assembly (52) used for controlling the plurality of clamping assemblies (51) to release / clamp the sealed bottle during the opening / closing process of the cabinet door (4).

2. The protective mechanism for a hazardous chemical storage cabinet (1) according to claim 1 is characterized by: A central groove (21) and a slide groove (22) are provided on the top of the layer plate (2), four slide grooves (22) are provided and are evenly distributed about the central groove (21), the slide groove (22) on the side close to the cabinet door (4) is perpendicular to the cabinet door (4), the number of groups of the clamping assembly (51) is equal to the number of the slide grooves (22) and the positions correspond one to one, and the clamping assembly (51) includes a T-shaped slider (511) that is slidably matched with the slide groove (22), a connecting rod (512) that is provided on the T-shaped slider (511) and slidably matched, a pressing roller (513) that is provided on one end of the connecting rod (512) close to the central groove (21), a movable plate (514) fixed to one end of the connecting rod (512) away from the central groove (21), and a lower spring (515) that is sleeved on the connecting rod (512) and fixed between the T-shaped slider (511) and the movable plate (514); The linkage assembly (52) includes a transmission unit (521) and a linkage unit (522). The transmission unit (521) includes a horizontal bidirectional screw (5211) rotatably mounted in the layer plate (2) and parallel to the cabinet door (4), a vertical screw (5212) rotatably mounted in the layer plate (2) and perpendicular to the horizontal bidirectional screw (5211), a driven bevel gear (5213) fixedly sleeved on the horizontal bidirectional screw (5211) and located in the center groove (21), and a driving bevel gear (5214) fixed to one end of the vertical screw (5212) located in the center groove (21) and meshing with the driven bevel gear (5213). The axis of the horizontal bidirectional screw (5211) and the axis of the vertical screw (5212) are both horizontal. The rod (5211) is provided with two sections of threads with equal pitch and opposite rotation directions. The two sections of the threads of the horizontal bidirectional screw (5211) are located in two opposite sliding grooves (22). The horizontal bidirectional screw (5211) passes through one group of T-shaped sliders (511) and is threadedly connected. The threads of the longitudinal screw (5212) are located in the sliding groove (22) perpendicular to the side door. The longitudinal screw (5212) passes through the other group of T-shaped sliders (511) and is threadedly connected. The longitudinal screw (5212) and the active bevel gear (5214) are each provided with two and symmetrically distributed on both sides of the horizontal bidirectional screw (5211). The linkage unit (522) is used to control the rotation of the longitudinal screw (5212) on the side close to the cabinet door (4) during the opening / closing process of the cabinet door (4).

3. The protective mechanism for a hazardous chemical storage cabinet (1) according to claim 2 is characterized by: A rotating shaft (41) fixed to the cabinet door (4) is provided on the side wall of the cabinet door (4) near the bottom thereof, the cabinet door (4) is magnetically attracted to the cabinet body of the storage cabinet (1) near the top thereof, a handle (42) is fixed on the side of the cabinet door (4) away from the storage cabinet (1), a lower trough (43) and an upper trough (44) connected to the top of the lower trough (43) are provided on the inner side of the cabinet door (4) at a position corresponding to the longitudinal screw (5212), and the linkage unit (522) comprises a worm (5221) fixedly sleeved on the rotating shaft (41) and located in the lower trough (43), a vertical plate (5222) fixed on the top of the layer plate (2) near the side door, and a vertical plate (5222) provided on the vertical plate (5221) The cabinet (522) includes a rotating rod (5223) which is rotatably connected to the cabinet (222), a worm gear (5224) fixed at one end of the rotating rod (5223) and located in the upper trough (44), and a large gear (5225) fixed at the other end of the rotating rod (5223), the worm gear (5224) being engaged with the worm (5221), a mounting groove (23) being provided at a position corresponding to the large gear (5225) on the top of the shelf (2), a longitudinal screw rod (5212) on a side close to the cabinet door (4) extending into the mounting groove (23), and a linkage unit (522) further comprising a small gear (5226) fixedly sleeved on the longitudinal screw rod (5212) in the mounting groove (23) and engaged with the large gear (5225).

4. The protective mechanism for a hazardous chemical storage cabinet (1) according to claim 3 is characterized by: The cross section of the connecting rod (512) is rectangular. A balancing rod (7) is fixed to a position near the upper end of the side wall of the movable plate (514). The upper and lower ends of the pressing roller (513) are rotatably connected to the balancing rod (7) and the connecting rod (512) respectively. A rubber sleeve (5131) is fixedly sleeved on the side wall of the pressing roller (513).

5. The protective mechanism for a hazardous chemical storage cabinet (1) according to claim 3 is characterized by: A plurality of hollow holes (52251) are provided through the large gear (5225), and the plurality of hollow holes (52251) are evenly distributed about the axis of the rotating rod (5223).

6. The protective mechanism for a hazardous chemical storage cabinet (1) according to claim 3 is characterized by: A pressure sensor (12) is embedded on the cabinet side wall of the storage cabinet (1); a controller (13) electrically connected to the pressure sensor (12) is fixed on the top of the storage cabinet (1); a limiting mechanism (6) for enhancing the stability of the sealed bottle is provided in the storage cabinet (1); the limiting mechanism (6) comprises a lifting assembly (61); the lifting assembly (61) comprises a cylinder (611) fixed to the top of the storage cabinet (1) or the bottom of the shelf (2) and electrically connected to the controller (13); and a mounting plate (612) fixed to the lower end of the piston rod of the cylinder (611); the limiting mechanism (6) further comprises a limiting assembly (62) provided at the bottom of the mounting plate (612) and used for pressing and limiting the bottle cap of the sealed bottle.

7. The protective mechanism for a hazardous chemical storage cabinet (1) according to claim 6 is characterized by: The limiting components (62) are provided in multiple groups and are evenly distributed around the sealed bottle. Each group of limiting components (62) is provided with multiple limiting components and arranged in a straight line. The limiting components (62) include a sleeve (621) fixed to the bottom of the mounting plate (612), a limiting plate (622) slidingly matched with the inner wall of the sleeve (621), a limiting rod (623) fixed to the bottom of the limiting plate (622), and an upper spring (624) fixed between the top of the limiting plate (622) and the bottom of the mounting plate (612).

8. The protective mechanism for a hazardous chemical storage cabinet (1) according to claim 7 is characterized by: A ventilation cavity (14) is provided in the cabinet body of the storage cabinet (1) at a position close to the layer plate (2), and an air inlet hole (15) and an air outlet hole (16) communicating with the ventilation cavity (14) are provided on the cabinet body of the storage cabinet (1). Air in the storage cavity (11) enters the ventilation cavity (14) through the air inlet hole (15) and is discharged through the air outlet hole (16).

9. The protective mechanism for a hazardous chemical storage cabinet (1) according to claim 8, characterized in that: The lower end of the limiting rod (623) is hemispherical, and the spacing between adjacent sleeves (621) is 0.2-0.4 cm. A rubber pad (8) having a diameter greater than the width of the central groove (21) is provided at a position corresponding to the central groove (21) on the top of the layer plate (2).

10. A protective mechanism for a hazardous chemical storage cabinet (1) according to claim 9, characterized in that: An environmental monitoring module electrically connected to the controller (13) is installed in the ventilation cavity (14). The environmental monitoring module includes various organic matter measuring instruments for detecting organic matter concentrations. The controller (13) is integrated with a data processing unit capable of performing real-time analysis on organic matter concentration data collected by the environmental monitoring module, generating a hazardous chemical storage environment safety report, and transmitting the report to a digital terminal of a staff member for monitoring the protection mechanism of the hazardous chemical storage cabinet (1).

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