Chemical reagent safety storage cabinet for laboratory and management method

Abstract

The application discloses a chemical reagent safe storage cabinet for a laboratory and a management method, and belongs to the technical field of laboratory storage cabinets. The chemical reagent safe storage cabinet for the laboratory comprises a supporting frame, supporting legs mounted on the supporting frame, a storage box arranged above the supporting frame, a shell arranged in a U-shaped mode, an opening mode of the front of the shell, a baffle arranged above the opening of the shell, sliding grooves arranged on both sides of the opening of the shell, a door plate slidably connected in the sliding grooves, mounting holes formed in the door plate, a shaft pipe mounted in the mounting holes through bearings, a door lock assembly mounted in the shaft pipe and used for locking the door plate, and a locking assembly matched with the door lock assembly and mounted below the door lock assembly. A supporting plate for placing reagents is arranged at the bottom of the inner wall of the shell, unauthorized personnel can be effectively prevented from taking the reagents, and therefore the safety of the system is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laboratory storage cabinet, and particularly relates to a chemical reagent safe storage cabinet for a laboratory and a management method. BACKGROUND

[0002] In the field of laboratories and pharmaceutical research, the storage and retrieval of reagents involve the safety of chemical reagents and the health of the laboratory environment. In the prior art, a reagent storage cabinet is a common device used to store chemical reagents and ensure their safe use in a laboratory environment. However, these traditional reagent storage cabinets have some safety hazards that can affect the laboratory environment and the health of the operators.

[0003] Toxic contaminated gases may be emitted from the reagent storage area, posing a safety hazard. Such contaminated gases can pose a threat to the laboratory environment and the health of the operators. Traditional reagent storage cabinets usually require direct opening of the door panel when retrieving reagents, which can cause contaminated gases in the reagent storage area to be released into the laboratory environment, increasing the risk of poisoning for laboratory personnel. SUMMARY

[0004] To solve the above problems, the present application aims to provide a chemical reagent safe storage cabinet for a laboratory.

[0005] To achieve the technical purpose, the present application provides the following scheme:

[0006] A chemical reagent safe storage cabinet for a laboratory, comprising a support frame and a support foot mounted on the support frame, wherein the upper part of the support frame is provided with a storage box, characterized in that the storage box comprises a U-shaped shell, the front of the shell is open, a baffle is arranged above the opening of the shell, and a sliding slot is formed on both sides of the opening of the shell, a door panel is slidably connected in the sliding slot, the door panel is inclined, an installation hole is formed in the door panel, an axle tube is mounted in the installation hole through a bearing, a door lock assembly for locking the door panel is mounted in the inside of the axle tube, and a locking assembly matched with the door lock assembly is mounted below the door lock assembly.

[0007] A leakage-proof plate is fixedly installed on the upper part of the support frame, a supporting plate for placing reagents is arranged on the inner wall bottom of the shell, a photocatalytic air filtration mechanism is mounted in the inside of the shell, a reagent storage area is formed between the photocatalytic air filtration mechanism and the supporting plate, and a weighing platform is externally arranged on the outside of the storage box.

[0008] Preferably, the door lock assembly comprises a rotating shaft mounted inside a shaft tube, guide blocks are arranged on both sides of the rotating shaft, an annular groove is formed in the inner wall of the shaft tube, a guide groove matched with the guide blocks is communicated with one side of the annular groove, a clamping groove arranged at 90 degrees is communicated with the bottom end of the guide groove, the guide blocks are slidingly arranged in the annular groove, the guide groove and the clamping groove, a handle is fixedly connected to the outer side of the shaft tube on the door plate, and the end of the rotating shaft close to the handle protrudes out of the outermost side of the handle.

[0009] The inner end of the rotating shaft is fixedly connected with a first pressing block arranged in a conical shape, a fixed plate is fixedly connected to the inner wall of the door plate, and a switch assembly is fixedly connected to the side of the fixed plate close to the first pressing block.

[0010] Preferably, the switch assembly comprises a sleeve connected below the fixed plate, a pressing rod is slidingly arranged in the sleeve, a second pressing block arranged in a conical shape is connected to the end of the pressing rod close to the first pressing block, the first pressing block and the second pressing block are matched and abutted with each other, the first pressing block is used for extruding the second pressing block and the pressing rod to move into the sleeve, a reset spring is installed in the inside of the sleeve, one end of the reset spring abuts against the inner bottom of the sleeve, the other end of the reset spring abuts against the pressing rod, a gear rack is arranged on the outer side of the pressing rod, a gear rack groove is formed in the sleeve for the gear rack to slide, and a rotary control switch for controlling the operation of the photocatalytic air filtering mechanism is arranged on one side of the gear rack.

[0011] Preferably, the rotary control switch comprises a support plate mounted on the door plate, a rotary resistance switch is mounted on the support plate, gear teeth are arranged on the circumference of the rotary resistance switch, and the gear teeth are in meshing connection with the gear rack.

[0012] Preferably, two groups of connecting rods are fixedly connected to one end of the shaft tube inside the door plate, traction rods are rotatably connected to the two ends of the two groups of connecting rods through connecting shafts, and the other end of the traction rods is connected with an air inlet assembly.

[0013] The air inlet assembly comprises air inlets formed in the door plate and arranged in a symmetrical manner, sliding rails are arranged on the inner wall of the door plate at the air inlets, a sealing plate for blocking the air inlets is slidingly connected to the sliding rails, and the other end of the traction rods is movably connected with the sealing plate.

[0014] Preferably, the supporting plates are arranged above the leakage-proof plates, the supporting plates are arranged in an inclined manner, the supporting plates at the lower position are provided with V-shaped grooves, and through holes are formed in the V-shaped grooves.

[0015] The locking assembly comprises a fixed seat fixedly installed on the supporting plate, a U-shaped groove is formed in the fixed seat, a through hole is formed in the fixed seat, a lock shell is connected to one side of the fixed seat, a micro motor is installed in the lock shell, a worm wheel is connected to the output end of the micro motor, a worm is meshingly connected to one side of the worm wheel, an axle sleeve is arranged in the lock shell, the worm is slidingly inserted into the axle sleeve, and the worm is inserted into the through hole;

[0016] The side of the handle is provided with a lock rod which is rotationally arranged in the U-shaped groove of the fixed seat, a positioning hole for locking is formed in the lock rod, and the worm and the positioning hole are matched and inserted with each other.

[0017] The locking assembly further comprises a verification identification module installed on the shell, and the verification identification module is signal-connected with the micro motor.

[0018] Preferably, the photocatalytic air filtering mechanism comprises an air inlet shell fixedly installed in the shell, a hole plate is arranged at the bottom of the air inlet shell, a photocatalytic plate is arranged above the hole plate, a fixed support is fixedly connected above the photocatalytic plate, a fan box is installed above the fixed support, a fan is installed in the fan box, an air outlet is formed in the upper portion of the fan box, an air outlet channel is communicatively arranged on the air outlet, the other end of the air outlet channel extends to the upper portion of the shell, and a filter screen is further installed in the air outlet channel.

[0019] Preferably, a rubber pad for sealing the air inlet is arranged on the side of the sealing plate.

[0020] Preferably, a wind guide cover is communicatively arranged on the inner side of the door plate, the wind guide cover is in a strip shape, a roller shaft is rotationally connected to the inner wall of the wind guide cover, a guide plate is fixedly connected to the roller shaft, a bevel gear is coaxially connected to the roller shaft, a bevel gear rack is arranged on the side of the sealing plate close to the bevel gear, the bevel gear rack is meshingly connected with the bevel gear, and the movement of the bevel gear rack is used to drive the rotation of the bevel gear, so as to drive the steering of the guide plate.

[0021] The application also discloses a management method of the chemical reagent safety storage cabinet for a laboratory.

[0022] When the laboratory manager needs to take the reagent, first, the verification identification module is used for verification, one end of the rotating shaft is pressed, the rotating shaft is moved inward, the movement of the rotating shaft drives the movement of the first pressing block, the first pressing block abuts against the second pressing block, the second pressing block and the first pressing block are moved upward, the movement of the pressing rod drives the rotation of the knob resistance switch on the side of the pressing rod, so as to realize the opening or adjustment of the knob resistance switch, and the knob resistance switch is used to control the operation of the fan in the photocatalytic air filtering mechanism.

[0023] In addition, the verification identification module captures and identifies the biological information of the management personnel;

[0024] The verification identification module and the micro motor are electrically connected through a cable or a wireless signal connection, and when the verification identification module verifies the user information successfully, an electric signal is sent to the micro motor;

[0025] The micro motor receives the control signal to control the rotation of the worm gear, and the worm gear drives the worm to move along the shaft sleeve, and the movement of the worm moves out of the positioning hole to realize the unlocking of the storage cabinet.

[0026] The handle is rotated, at this time the shaft tube is rotated, the shaft tube drives the movement of the connecting rod and the traction rod, the traction rod is used to pull the sealing plate to open the air inlet, and the air inlet is realized, and the contaminated gas in the medicament storage area can be quickly extracted to the photocatalytic air filter mechanism for purification and discharge treatment before the door plate is opened.

[0027] The beneficial effects of the present application are:

[0028] 1. In the present application, the door plate is designed in an inclined posture, the shaft tube is installed through the mounting hole and the bearing, and the door lock assembly and the locking assembly are provided to realize that the medicament storage area can be unlocked according to the biological information identification of the experimental management personnel, and the locking assembly is used, only authorized personnel can unlock the door plate through the system verification, and the safety storage of the medicament is effectively improved.

[0029] 2. In the present application, the laboratory management personnel first presses the rotating shaft, the rotating shaft moves along the shaft tube, the guide block is arranged on both sides of the rotating shaft, the guide block moves along the guide groove, when the guide block moves to the inner bottom of the guide groove, then the rotating shaft is rotated, so that the rotating shaft can be clamped in the clamping groove, the end of the rotating shaft is provided with a first pressing block, because the first pressing block is provided with a slope, so that the first pressing block can extrude the slope of the second pressing block, so that the pressing rod is extruded and moves upward, when the pressing rod moves upward, the rack on the pressing rod can drive the rotating knob resistance switch to rotate, the rotating knob resistance switch can control the operation of the photocatalytic air filter mechanism, thereby realizing the air extraction.

[0030] In the process of air extraction, the photocatalytic air filter mechanism can ensure that the medicament storage area is in a negative pressure state as much as possible, and ensure that the gas in the medicament storage area is discharged to the outside, which not only ensures the safety of the laboratory working environment, but also saves energy.

[0031] 3. In the present application, when the laboratory management personnel needs to take the medicament, the biological information of the experimental management personnel is verified through the verification identification module, only in the case that the biological information verification is successful, the subsequent steps of taking the medicament can be continued, when the verification identification module verifies the user successfully, an electric signal is sent to the micro motor, the micro motor receives the control signal to control the rotation of the worm gear, the worm gear drives the worm to move along the shaft sleeve, the movement of the worm moves out of the positioning hole to realize the unlocking, the door plate is opened by rotating the handle, and the safety is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic view of the perspective structure of the present application;

[0033] Figure 2 is a schematic view of the front structure of the present application;

[0034] Figure 3 is a schematic view of the sectional structure of the present application;

[0035] Figure 4 is a schematic view of the Figure 3 enlarged structure at A in the present application;

[0036] Figure 5 is a schematic view of the Figure 1 enlarged structure at B in the present application;

[0037] Figure 6 is a schematic view of the door lock assembly structure of the present application;

[0038] Figure 7 is a schematic view of the internal structure of the door lock assembly of the present application;

[0039] Figure 8 is a schematic view of the internal guide groove structure of the shaft tube of the present application;

[0040] Figure 9 is a schematic view of the traction rod structure of the present application;

[0041] Figure 10 is a schematic view of the wind deflector structure of the present application;

[0042] Figure 11 is a schematic view of the partial structure of the air inlet assembly of the present application;

[0043] Figure 12 is a schematic view of the air extraction flow direction of the present application;

[0044] Figure 13 is a schematic view of the sectional structure of the switch assembly of the present application;

[0045] Figure 14 is a schematic view of the locking assembly structure of the present application;

[0046] Figure 15 is a schematic view of the guide plate structure of the present application.

[0047] In the figure: 1, support frame; 2, support foot; 3, storage box; 31, shell; 32, baffle; 33, chute; 4, door panel; 41, mounting hole; 42, shaft tube; 421, connecting rod; 422, pull rod; 423, air inlet assembly; 4231, air inlet; 4232, slide rail; 4233, cover plate; 4234, air guide cover; 424, roller shaft; 4241, guide plate; 4242, bevel gear; 4243, bevel rack; 5, door lock assembly; 51, rotating shaft; 52, guide block; 53, annular groove; 54, guide groove; 55, clamping groove; 56, handle; 561, lock rod; 57, first pressing block; 6, locking assembly; 61, fixed seat; 62, through hole; 63, lock housing; 64, micro motor; 65, worm gear; 66, worm; 67, shaft sleeve; 68, positioning hole; 69, verification identification module; 7, leak-proof plate; 8, supporting plate; 81, V-shaped groove; 82, through hole; 9, photocatalytic air filtering mechanism; 91, air inlet shell; 92, aperture plate; 93, photocatalytic plate; 94, fixed support; 95, fan box; 96, fan; 97, air outlet; 98, air outlet channel; 99, filter screen; 10, medicament storage area; 11, fixed plate; 12, switch assembly; 121, sleeve; 122, pressing rod; 123, second pressing block; 124, return spring; 125, rack; 126, rack groove; 127, rotary control switch; 1271, support plate; 1272, knob resistor switch; 1273, teeth; 13, weighing platform. DETAILED DESCRIPTION

[0048] The application will be further described in conjunction with the drawings and specific embodiments. In order to clearly and completely describe the technical solutions, the following embodiments are selected for description; based on the content described in the present application, other embodiments obtained without creative labor are within the scope of protection of the present application.

[0049] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom" and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of clearly describing the embodiments, and do not indicate or imply that the devices or elements referred to must have a particular orientation, so it cannot be understood as a limitation on the present application.

[0050] Embodiment 1

[0051] In the field of laboratory and pharmaceutical research, the storage and use of medicaments is a crucial link. However, in this process, toxic contaminated gases may be emitted from the medicament storage area 10, posing a certain safety hazard to the laboratory working environment.

[0052] The traditional medicine storage cabinet has a safety hazard: when taking medicine, the door plate 4 is directly opened, which causes the contaminated gas in the medicine storage area 10 to be easily released into the laboratory environment, which may cause the risk of poisoning of the experimental personnel.

[0053] To solve the above problems, the present application discloses a chemical medicine safety storage cabinet for laboratory, please refer to Figures 1-5 , including support frame 1 and support foot 2 installed on support frame 1, the upper part of support frame 1 is provided with storage box body 3, storage box body 3 includes U-shaped shell 31, the front of shell 31 is open, the upper part of shell 31 is provided with baffle 32, the both sides of shell 31 are provided with sliding groove 33, sliding groove 33 is connected with door plate 4, door plate 4 is inclined, when door plate 4 slides upward, it is inserted into the back side of baffle 32, installation hole 41 is opened on door plate 4, shaft tube 42 is installed in installation hole 41 through bearing, door lock assembly 5 is installed in the inside of shaft tube 42 for locking door plate 4, lock assembly 6 matched with door lock assembly 5 is installed below door lock assembly 5;

[0054] The upper part of support frame 1 is fixedly installed with leakage-proof plate 7, the inner wall bottom of shell 31 is provided with supporting plate 8 for placing medicine, photocatalytic air filter mechanism 9 is installed in the inside of shell 31, medicine storage area 10 is between photocatalytic air filter mechanism 9 and supporting plate 8.

[0055] The outside of storage box body 3 is externally provided with weighing platform 13, label recognition module is arranged on weighing platform 13, and RFID label is attached to the bottom of reagent bottle. When the reagent bottle is placed on the weighing platform 13, the label recognition module on the weighing platform 13 reads the information of the RFID label. The RFID label contains a unique identifier and weight data about the reagent.

[0056] By reading the information of the RFID label, the information in the RFID label is matched with the reagent type database stored in the system, and the system can automatically identify the type of the reagent.

[0057] When the user takes out the reagent bottle, the system records the initial weight of the reagent bottle, i.e. the weight before use (achieved by the built-in weighing sensor on the weighing platform 13). After using the medicine, the user puts the reagent bottle back on the weighing platform 13, and the system weighs again to record the weight after use.

[0058] By comparing the weight before and after use, the system can calculate the usage amount of the reagent. This usage amount data is used for further management of the medicine.

[0059] The data of the reagent usage amount includes the unique identifier, type, weight before and after use, and usage amount of the reagent, and is stored in the database of the system.

[0060] The support frame 1 and the support foot 2 constitute the basic support structure of the entire storage cabinet, the storage box 3 takes the shell 31 in a U-shaped form as the main body, the baffle 32 is arranged at the opening, the door plate 4 is slidably connected on both sides of the sliding groove 33, the door plate 4 is designed in an inclined posture, the shaft pipe 42 is installed by using the mounting hole 41 and the bearing, the door lock assembly 5 and the locking assembly 6 are equipped, the medicine storage area 10 can be unlocked according to the biological information recognition of the experimental management personnel, the locking assembly 6 is adopted, only authorized personnel can unlock the door plate 4 through system verification, and the safety of the medicine storage is effectively improved.

[0061] The leakage prevention plate 7 is fixed above the support frame 1, which effectively prevents the leakage of the medicine and guarantees the safety of the laboratory environment, the medicine is stored on the supporting plate 8, and the photocatalytic air filtering mechanism 9 is located in the inside of the shell 31, so that the medicine is stored in a relatively closed environment, and the photocatalytic air filtering mechanism 9 can purify the polluted gas in the medicine storage area 10.

[0062] Embodiment 2

[0063] In combination with Figure 6 , Figure 11 and Figure 15 , this embodiment is an improvement on the basis of embodiment 1, when the medicine is stored in the medicine storage area 10, toxic gas will be emitted, since the medicine storage area 10 is a relatively closed environment, the gas is not easy to be discharged from the cabinet body, in order to save energy, the photocatalytic air filtering mechanism 9 is generally in a standby state, so that the toxic and polluted gas is easy to accumulate in the medicine storage area 10.

[0064] In the prior art, some experimental personnel do not have enough safety awareness, directly open the door plate 4 to take the medicine, but after opening the door plate 4, the polluted gas accumulated in the medicine storage area 10 is easy to enter the external environment, and the experimental personnel is easy to be poisoned, which has a safety hazard.

[0065] A series of components are designed to ensure a safe and efficient medicine taking process, the door lock assembly 5 comprises a rotating shaft 51 installed in the inside of the shaft pipe 42, guide blocks 52 are arranged on both sides of the rotating shaft 51, a ring-shaped groove 53 is formed in the inner wall of the shaft pipe 42, a guide groove 54 matched with the guide blocks 52 is communicated on one side of the ring-shaped groove 53, a clamping groove 55 arranged at 90 degrees is communicated at the bottom end of the guide groove 54, the guide blocks 52 are slidably arranged in the ring-shaped groove 53, the guide groove 54 and the clamping groove 55, a handle 56 is fixedly connected to the outside of the shaft pipe 42 located outside the door plate 4, and one end of the rotating shaft 51 close to the handle 56 protrudes from the outermost side of the handle 56.

[0066] The inner end of the rotating shaft 51 is fixedly connected with a first pressing block 57 arranged in a conical shape, a fixed plate 11 is fixedly connected to the inner wall of the door plate 4, and a switch assembly 12 is fixedly connected to one side of the fixed plate 11 close to the first pressing block 57.

[0067] The switch assembly 12 comprises a sleeve 121 connected below the fixed plate 11, a pressing rod 122 is slidingly arranged in the sleeve 121, a second pressing block 123 in a tapered arrangement is connected to one end of the pressing rod 122 close to the first pressing block 57, the first pressing block 57 and the second pressing block 123 are matched and abutted with each other, the first pressing block 57 is used to extrude the second pressing block 123 and the pressing rod 122 to move into the sleeve 121, a reset spring 124 is installed inside the sleeve 121, one end of the reset spring 124 abuts against the inner bottom of the sleeve 121, the other end of the reset spring 124 abuts against the pressing rod 122, a rack 125 is arranged on the outer side of the pressing rod 122, a rack groove 126 for the rack 125 to slide is opened on the sleeve 121, and a rotary control switch 127 for controlling the operation of the photocatalytic air filtering mechanism 9 is arranged on one side of the rack 125.

[0068] The rotary control switch 127 comprises a support plate 1271 installed on the door plate 4, a rotary resistance switch 1272 is installed on the support plate 1271, a gear tooth 1273 is arranged on the circumference of the rotary resistance switch 1272, the gear tooth 1273 is meshingly connected between the rack 125, and the rotary resistance switch 1272 is connected with the photocatalytic air filtering mechanism 9 through wires.

[0069] One end of the shaft tube 42 inside the door plate 4 is fixedly connected with two groups of connecting rods 421, the two ends of the two groups of connecting rods 421 are rotatably connected with a traction rod 422 through a connecting shaft, and the other end of the traction rod 422 is connected with an air inlet assembly 423.

[0070] The air inlet assembly 423 comprises air inlets 4231 symmetrically arranged on the door plate 4, a sliding rail 4232 is arranged on the inner wall of the door plate 4 at the air inlets 4231, a sealing plate 4233 for blocking the air inlets 4231 is slidingly connected on the sliding rail 4232, the other end of the traction rod 422 is movably connected with the sealing plate 4233, and a rubber pad for sealing the air inlets 4231 is arranged on the side of the sealing plate 4233. A wind guide cover 4234 is communicatively arranged on the inner side of the door plate 4 at the air inlets 4231, the wind guide cover 4234 is in a strip shape, a roller shaft 424 is rotatably connected on the inner wall of the wind guide cover 4234, a guide plate 4241 is fixedly connected on the roller shaft 424, a helical gear 4242 is coaxially connected on the roller shaft 424, a helical rack 4243 is arranged on the side of the sealing plate 4233 close to the helical gear 4242, the helical rack 4243 is meshingly connected with the helical gear 4242, and the movement of the helical rack 4243 is used to drive the rotation of the helical gear 4242, so as to drive the steering of the guide plate 4241.

[0071] The initial state guide plate 4241 is vertically arranged, when the cover plate 4233 is driven to move, the bevel gear 4243 also moves, thereby driving the rotation of the bevel gear 4242, the rotation of the bevel gear 4242 is transmitted to the guide plate 4241, the guide plate 4241 rotates from bottom to top, thereby changing the air inlet direction of the air inlet 4234.

[0072] After the air suction is started, a low pressure area is generated near the air inlet 4231, according to the principle of fluid mechanics, air will flow from a high pressure area to a low pressure area, by opening the small hole, the air speed at the air inlet can be increased. Through the swinging action of the guide plate 4241, the air suction direction can be slowly changed from the bottom to the top, thereby more thoroughly completing the air suction.

[0073] In specific use, the laboratory manager holds the handle 56, first presses the rotating shaft 51, the rotating shaft 51 moves along the shaft pipe 42, because the guide block 52 is arranged on both sides of the rotating shaft 51, the guide block 52 moves along the guide groove 54, when the guide block 52 moves to the inner bottom of the guide groove 54, then the rotating shaft 51 is rotated, so that the rotating shaft 51 can be clamped in the clamping groove 55, the first pressing block 57 is arranged on the end of the rotating shaft 51, because the first pressing block 57 is arranged with a slope, so the first pressing block 57 can extrude the slope of the second pressing block 123, so that the pressing rod 122 is extruded and moves upward, when the pressing rod 122 moves upward, the rack 125 on the pressing rod 122 can drive the rotary knob resistance switch 1272 to rotate, the rotary knob resistance switch 1272 can control the operation of the photocatalytic air filter mechanism 9, thereby realizing air suction.

[0074] In the process of air suction, the photocatalytic air filter mechanism 9 can try to ensure that the medicament storage area 10 is in a negative pressure state, so as to ensure that the gas in the medicament storage area 10 is discharged to the outside, which not only ensures the safety of the laboratory working environment, but also saves energy.

[0075] It should be noted that in the above embodiment, the photocatalytic air filter mechanism 9 is in standby state, and the rotary knob resistance switch 1272 is used to control the on-off of the photocatalytic air filter mechanism 9;

[0076] Another embodiment is that when the door plate 4 is in a closed state, the photocatalytic air filter mechanism 9 operates at minimum power, when the medicament needs to be taken, the pressing rod 122 moves upward to drive the rack 125 to move, the movement of the rack 125 drives the rotation of the rotary knob resistance switch 1272, the rotary knob resistance switch 1272 can adjust the operating power of the photocatalytic air filter mechanism 9, when the medicament is taken, the power of the photocatalytic air filter mechanism 9 is increased, thereby increasing the efficiency of air suction.

[0077] After the air has been ventilated for a period of time, it is necessary to open the door panel 4 to retrieve the medicine. Simply rotate the handle 56. The handle 56 drives the shaft tube 42 to rotate, and the rotation of the shaft tube 42 drives the connecting rod 421 to rotate. The connecting rod 421 is connected to the traction rod 422, so that the traction rod 422 can pull the sealing plate 4233 to move and open the air inlet 4231. Before pulling the handle 56 upward to open the door panel 4, the air inlet 4231 opens first. The air extraction function of the photocatalytic air filter mechanism 9 allows the air outside the storage cabinet to quickly enter the storage cabinet from the air inlet 4231 and the air guide hood 4234. The air guide hood 4234 is located at the bottom of the door panel 4 and can draw the air inside the storage cabinet from bottom to top into the photocatalytic air filter mechanism 9.

[0078] Therefore, after opening the door panel 4, it can be ensured that polluted gas will not enter the external environment. It should be noted that when rotating the handle 56, the rotating shaft 51 also rotates. Since the rotating shaft 51 is stuck in the slot 55, the rotating shaft 51 will not fall off, which can ensure that the photocatalytic air filter mechanism 9 is always in operation during the process of taking the medicine, and polluted gas will not flow into the external environment.

[0079] Example 3

[0080] Combination Figure 12 and Figure 14 This embodiment is an improvement upon Embodiments 1 and 2. The tray 8 is positioned above the leak-proof plate 7 and is inclined. The lower part of the tray 8 has a V-shaped groove 81 with a through hole 82. When storing reagents, laboratory personnel place the reagents on the tray 8. The tray 8, positioned above the leak-proof plate 7 and inclined, with a V-shaped groove 81 and a through hole 82 at its bottom, effectively prevents reagent leakage and ensures a safe laboratory environment.

[0081] Because the stored medicines release toxic gases, poisoning incidents may occur when untrained personnel handle the medicines. In order to prevent this from happening.

[0082] The locking assembly 6 provided in this application includes a fixed base 61 fixedly installed on the support plate 8. The fixed base 61 has a U-shaped groove and a through hole 62. A lock housing 63 is connected to one side of the fixed base 61. A micro motor 64 is installed inside the lock housing 63. A worm gear 65 is connected to the output end of the micro motor 64. A worm 66 is meshed with one side of the worm gear 65. A bushing 67 is provided inside the lock housing 63. The worm 66 is slidably inserted into the bushing 67 and inserted into the through hole 62.

[0083] The side of the handle 56 is provided with a locking rod 561 which is rotationally arranged in a U-shaped groove of the fixing seat 61, and a positioning hole 68 is formed in the locking rod 561 for locking, and the worm 66 and the positioning hole 68 are matched and inserted with each other;

[0084] The locking assembly 6 further comprises a verification identification module 69 mounted on the shell 31 and in signal connection with the micro motor 64.

[0085] When the laboratory manager needs to take the medicine, the verification identification module 69 is first verified, the laboratory manager presses the rotating shaft 51, and at the same time, the verification identification module 69 verifies the biological information, and only in the case of successful verification, the subsequent operation of rotating the handle 56 can be continued, when the verification identification module 69 verifies the user successfully, a telecommunication signal is sent to the micro motor 64, the micro motor 64 receives the control signal to control the rotation of the worm gear 65, the worm gear 65 drives the worm 66 to move along the shaft sleeve 67, the movement of the worm 66 is out of the positioning hole 68, and the unlocking is realized, the door plate 4 is opened by rotating the handle 56.

[0086] When the door plate 4 needs to be locked, the process is opposite to the above, when the worm 66 is inserted into the positioning hole 68, the handle 56 cannot be rotated. Through the above working process, the laboratory manager can efficiently take the medicine stored in the storage cabinet under the safety guarantee of the system through reasonable operation steps.

[0087] The verification identification module 69 can be a press-type password, or face recognition, or voiceprint recognition, when the laboratory manager needs to open the door plate 4;

[0088] The verification principle of the press-type password is as follows:

[0089] The user has registered the press-type password in advance;

[0090] When the laboratory manager needs to open the door plate 4, the verification identification module 69 prompts the user to input the press-type password.

[0091] After the user inputs the password, the verification identification module 69 compares the input password with the biological information registered in advance.

[0092] If the input password matches the registered information, the verification is passed, the locking assembly 6 works, and the system allows the door plate 4 to be opened.

[0093] The verification principle of the face recognition is as follows:

[0094] The user has registered the face information in advance, and the face information is associated with the corresponding permission.

[0095] When the laboratory manager needs to open the door plate 4, the verification identification module 69 starts the face recognition function.

[0096] The user's facial features are captured by the camera and the corresponding biometric information is extracted.

[0097] The extracted biometric information is compared with the information registered in advance.

[0098] If the facial information matches and the user has the corresponding permission, the verification is passed, the locking assembly 6 works, and the system allows the door panel 4 to be opened.

[0099] Embodiment 4

[0100] In combination Figure 11 and Figure 12 This embodiment is an improvement based on Embodiment 1, Embodiment 2, and Embodiment 3.

[0101] The photocatalytic air filtering mechanism 9 includes an air inlet shell 91 fixedly installed inside the shell 31. The bottom of the air inlet shell 91 is provided with a hole plate 92. Above the hole plate 92 is provided with a photocatalytic plate 93. The photocatalytic plate 93 is fixedly connected with a fixed support 94 above it. The fixed support 94 is installed with a fan box 95 above it. The fan box 95 is installed with a fan 96 inside it. The fan box 95 is provided with an air outlet 97 above it. The air outlet 97 is provided with an air outlet channel 98 in communication. The other end of the air outlet channel 98 extends to the upper side of the shell 31. The air outlet channel 98 is also installed with a filter screen 99.

[0102] Air first enters the photocatalytic air filtering mechanism 9 through the air inlet shell 91. The bottom of the air inlet shell 91 is provided with a hole plate 92. These holes allow air to enter the system.

[0103] After entering the photocatalytic air filtering mechanism 9, the air will enter the area of the photocatalytic plate 93 after passing through the hole plate 92. The photocatalytic plate 93 is usually coated with a photocatalyst, such as titanium dioxide. When these catalysts are exposed to ultraviolet light, they will trigger a photocatalytic reaction, converting harmful substances into harmless substances. This process effectively degrades and removes toxic gases and particles in the air.

[0104] After being purified by photocatalysis, the air is sucked into the fan box 95 by the fan 96. The fan box 95 is provided with an air outlet 97 above it. Through the air outlet channel 98, the clean air after photocatalytic treatment is discharged after being filtered by the filter screen 99.

[0105] The filter screen 99 is used to further filter the tiny particles, dust or other impurities in the air. This helps to ensure that the air discharged to the external environment is clean.

[0106] Embodiment 5

[0107] The application also discloses a management method of a chemical reagent safety storage cabinet for a laboratory, and the method is as follows:

[0108] Please participate Figure 13 and Figure 14 When the laboratory manager needs to take the medicine, press the rotating shaft 51 to move the rotating shaft 51 inward, drive the first pressing block 57 to move, the first pressing block 57 abuts against the second pressing block 123, thereby driving the pressing rod 122 on the second pressing block 123 to move upward, the movement of the pressing rod 122 drives the rack 125 on the side of the pressing rod 122 to rotate the knob resistor switch 1272, thereby realizing the switch or adjusting the knob resistor switch 1272, the knob resistor switch 1272 is used to control the operation of the fan 96 in the photocatalytic air filtering mechanism 9;

[0109] In addition, the verification and identification module 69 captures and identifies the biological information of the manager or the input password;

[0110] The verification and identification module 69 and the micro motor 64 are electrically connected through a cable or a wireless signal connection, when the verification and identification module 69 verifies the user successfully, sends an electrical signal to the micro motor 64;

[0111] The micro motor 64 receives the control signal to control the rotation of the worm gear 65, the worm gear 65 drives the worm 66 to move along the shaft sleeve 67, the movement of the worm 66 moves out of the positioning hole 68, and the storage cabinet is unlocked;

[0112] Turn the handle 56, at this time the shaft tube 42 follows the rotation, the shaft tube 42 drives the movement of the connecting rod 421 and the traction rod 422, the traction rod 422 is used to pull the sealing plate 4233 to open the air inlet 4231, so that the air can be quickly drawn into the photocatalytic air filtering mechanism 9 for purification and exhaust treatment before the door plate 4 is opened.

[0113] It should be noted that in this text, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0114] The above is only the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A chemical reagent safety storage cabinet for a laboratory, comprising a support frame (1) and support legs (2) mounted on the support frame (1), wherein a storage box (3) is disposed above the support frame (1), characterized in that, The storage box (3) includes a U-shaped shell (31) with an opening at the front. A baffle (32) is provided above the opening. Slide grooves (33) are provided on both sides of the opening. A door panel (4) is slidably connected in the slide grooves (33). The door panel (4) is inclined and has mounting holes (41). A shaft tube (42) is installed in the mounting holes (41) through bearings. A door lock assembly (5) for locking the door panel (4) is installed inside the shaft tube (42). A locking assembly (6) matching the door lock assembly (5) is installed below the door lock assembly (5). A leak-proof plate (7) is fixedly installed above the support frame (1). A tray (8) for placing medicine is provided at the bottom of the inner wall of the housing (31). A photocatalytic air filtration mechanism (9) is installed inside the housing (31). The area between the photocatalytic air filtration mechanism (9) and the tray (8) is a medicine storage area (10). A weighing platform (13) is placed on the outside of the storage box (3). The door lock assembly (5) includes a rotating shaft (51) installed inside the shaft tube (42). Guide blocks (52) are provided on both sides of the rotating shaft (51). An annular groove (53) is provided on the inner wall of the shaft tube (42). A guide groove (54) matching the guide block (52) is connected to one side of the annular groove (53). A locking groove (55) set at 90 degrees is connected to the bottom end of the guide groove (54). The guide block (52) is slidably disposed in the annular groove (53), the guide groove (54) and the locking groove (55). A handle (56) is fixedly connected to the shaft tube (42) located outside the door panel (4). The end of the rotating shaft (51) near the handle (56) protrudes from the outermost side of the handle (56). The inner end of the rotating shaft (51) is fixedly connected to a first pressure block (57) arranged in a cone shape, and a fixing plate (11) is fixedly connected to the inner wall of the door panel (4). A switch assembly (12) is fixedly connected to the side of the fixing plate (11) near the first pressure block (57). The tray (8) is positioned above the leak-proof plate (7). The tray (8) is inclined. The tray (8) at the lower position is provided with a V-groove (81). A through hole (82) is provided in the V-groove (81). The locking assembly (6) includes a fixed base (61) fixedly mounted on the support plate (8). The fixed base (61) has a U-shaped groove and a through hole (62). A lock shell (63) is connected to one side of the fixed base (61). A micro motor (64) is installed inside the lock shell (63). A worm gear (65) is connected to the output end of the micro motor (64). A worm (66) is meshed with one side of the worm gear (65). A bushing (67) is provided inside the lock shell (63). The worm (66) is slidably inserted into the bushing (67) and inserted into the through hole (62). The handle (56) has a locking rod (561) on its side. The locking rod (561) is rotatably mounted in the U-shaped groove of the fixed base (61). The locking rod (561) has a positioning hole (68) for locking. The worm gear (66) and the positioning hole (68) are matched and inserted into each other. The locking assembly (6) also includes a verification and identification module (69) mounted on the housing (31), and the verification and identification module (69) is signal-connected to the micro motor (64); The photocatalytic air filtration mechanism (9) includes an air inlet shell (91) fixedly installed inside the housing (31). A perforated plate (92) is provided at the bottom of the air inlet shell (91). A photocatalytic plate (93) is provided above the perforated plate (92). A fixed bracket (94) is fixedly connected above the photocatalytic plate (93). A fan box (95) is installed above the fixed bracket (94). A fan (96) is installed inside the fan box (95). An air outlet (97) is opened above the fan box (95). An air outlet channel (98) is connected to the air outlet (97). The other end of the air outlet channel (98) extends to the top of the housing (31). A filter screen (99) is also installed inside the air outlet channel (98).

2. The chemical reagent safety storage cabinet for laboratory use according to claim 1, characterized in that: The switch assembly (12) includes a sleeve (121) connected below the fixed plate (11). A pressure rod (122) is slidably disposed inside the sleeve (121). A tapered second pressure block (123) is connected to one end of the pressure rod (122) near the first pressure block (57). The first pressure block (57) and the second pressure block (123) abut against each other. The first pressure block (57) is used to squeeze the second pressure block (123) and the pressure rod (122) into the sleeve (121). 1) is equipped with a return spring (124). One end of the return spring (124) abuts against the inner bottom of the sleeve (121), and the other end of the return spring (124) abuts against the pressure rod (122). A rack (125) is provided on the outer side of the pressure rod (122). A rack groove (126) for sliding of the rack (125) is provided on the sleeve (121). A rotary control switch (127) for controlling the operation of the photocatalytic air filter mechanism (9) is provided on one side of the rack (125).

3. A chemical reagent safety storage cabinet for laboratory use according to claim 2, characterized in that: The rotary control switch (127) includes a support plate (1271) mounted on the door panel (4), a rotary resistance switch (1272) is mounted on the support plate (1271), and teeth (1273) are provided on the circumference of the rotary resistance switch (1272), and the teeth (1273) are engaged with the rack (125).

4. A chemical reagent safety storage cabinet for laboratory use according to claim 1, characterized in that: The shaft tube (42) is fixedly connected to two sets of connecting rods (421) at one end inside the door panel (4). The two ends of the two sets of connecting rods (421) are rotatably connected to a traction rod (422) through a connecting shaft. The other end of the traction rod (422) is connected to the air intake assembly (423). The air intake assembly (423) includes air inlets (4231) symmetrically arranged on the door panel (4). The door panel (4) is provided with a slide rail (4232) on the inner wall of the air inlet (4231). A sealing plate (4233) for blocking the air inlet (4231) is slidably connected on the slide rail (4232). The other end of the traction rod (422) is movably connected to the sealing plate (4233).

5. A chemical reagent safety storage cabinet for laboratory use according to claim 4, characterized in that: The side of the sealing plate (4233) is provided with a rubber gasket for sealing the air inlet (4231).

6. A chemical reagent safety storage cabinet for laboratory use according to claim 5, characterized in that: The door panel (4) is connected to the air inlet (4231) by an air guide hood (4234). The air guide hood (4234) is elongated. A roller (424) is rotatably connected to the inner wall of the air guide hood (4234). A guide plate (4241) is fixedly connected to the roller (424). A helical gear (4242) is coaxially connected to the roller (424). A helical rack (4243) is provided on the side of the sealing plate (4233) near the helical gear (4242). The helical rack (4243) is meshed with the helical gear (4242). The movement of the helical rack (4243) is used to drive the rotation of the helical gear (4242), thereby driving the guide plate (4241) to turn.

7. A management method for a laboratory chemical reagent safety storage cabinet as described in any one of claims 1-6, characterized in that, The method is as follows: When laboratory managers need to take the reagent, they first verify it through the verification and identification module (69), press the rotating shaft (51) to move the rotating shaft (51) inward, drive the first pressure block (57) to move, the first pressure block (57) abuts against the second pressure block (123), thereby driving the pressure rod (122) on the second pressure block (123) to move upward. The movement of the pressure rod (122) causes the rack (125) on the side of the pressure rod (122) to drive the rotation of the rotary resistance switch (1272), thereby realizing the switching or adjustment of the rotary resistance switch (1272). The rotary resistance switch (1272) is used to control the operation of the fan (96) in the photocatalytic air filter mechanism (9); In addition, the verification and identification module (69) captures and identifies the biometric information of the management personnel; The verification and identification module (69) and the micro motor (64) are electrically connected by cable or wireless signal. When the verification and identification module (69) successfully verifies the user information, it sends an electrical signal to the micro motor (64). The micro motor (64) receives the control signal and controls the rotation of the worm wheel (65). The worm wheel (65) drives the worm (66) to move along the bushing (67). The movement of the worm (66) moves it out of the positioning hole (68), thereby unlocking the storage cabinet. After the laboratory manager takes out the reagent, he weighs it through the weighing platform (13) to confirm the current weight of the reagent and takes a picture. He then uploads the data to the server to complete the sampling registration. Before returning the reagents, the laboratory management personnel weighed the reagents again through the weighing platform (13) to confirm the current weight of the reagents and took a picture. The data was then uploaded to the server to complete the return registration. Turn the handle (56), and the shaft tube (42) will rotate accordingly. The shaft tube (42) will drive the connecting rod (421) and the traction rod (422) to move. The traction rod (422) is used to pull the sealing plate (4233) so that the air inlet (4231) can be opened to allow air to enter. Before opening the door panel (4), the polluted gas in the drug storage area (10) can be quickly drawn to the photocatalytic air filter mechanism (9) for purification and discharge.

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