CN110523442B - Laboratory safety locker - Google Patents
Laboratory safety locker Download PDFInfo
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- CN110523442B CN110523442B CN201910798252.6A CN201910798252A CN110523442B CN 110523442 B CN110523442 B CN 110523442B CN 201910798252 A CN201910798252 A CN 201910798252A CN 110523442 B CN110523442 B CN 110523442B
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- strong corrosion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L1/00—Enclosures; Chambers
- B01L1/50—Enclosures; Chambers for storing hazardous materials in the laboratory, e.g. cupboards, waste containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/08—Ergonomic or safety aspects of handling devices
- B01L2200/085—Protection against injuring the user
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/04—Closures and closing means
- B01L2300/046—Function or devices integrated in the closure
- B01L2300/048—Function or devices integrated in the closure enabling gas exchange, e.g. vents
Abstract
The invention relates to the technical field of storage cabinets, in particular to a laboratory safety storage cabinet which comprises five layers of cabinet bodies separated by a plurality of horizontal partition plates, wherein the five layers of cabinet bodies are respectively a first ventilation layer, a medicine storage layer, an equipment layer, a strong corrosion medicine storage layer and a second ventilation layer, a first ventilation mechanism communicated with the medicine storage layer is installed in the first ventilation layer, a second ventilation mechanism sequentially communicated with the second ventilation layer and the strong corrosion medicine storage layer is installed in the equipment layer, the first ventilation mechanism is linked with the second ventilation mechanism, the safety storage cabinet can respectively store common medicines and strong corrosion medicines, two ventilation mechanisms can be driven to work together only by one power source device, and the strong corrosion medicine storage layer of the safety storage cabinet does not need to be shut down for cleaning.
Description
Technical Field
The invention relates to the technical field of storage cabinets, in particular to a laboratory safety storage cabinet.
Background
Various special cabinets are required to be configured in a laboratory, and the purposes and the using methods of the cabinets are different, and the cabinets comprise the following cabinets:
1. a fume hood. The fume hood is a local air exhaust device which is most commonly used in laboratories, and because the working properties of the laboratories are different, the required fume hood structure, the use conditions and the air exhaust effect are also greatly different. Common fume hoods include top-suction type fume hoods, slit type fume hoods, by-pass type fume hoods, air-supply type fume hoods, natural fume type fume hoods, movable fume hoods, and the like.
2. And (4) a sample cabinet. The sample cabinet is provided with a partition board and partitions, can be stored according to the physical properties and chemical stability of samples, and can be labeled so as to store and search the samples, wherein each partition is different in size.
3. A medicine storage cabinet. Unlike sample cabinets, drug safekeeping cabinets hold liquid reagents, such as volatile drugs like hydrochloric acid, nitric acid, perchloric acid, organic reagents, etc. Most of the medicine storage cabinets are made of steel, and the cabinets are required to be stable and can be used side by side and also can be fixed with a ground wall.
4. A clean cabinet. The clean cabinet is used for providing a sterile and dustless clean operation environment for a laboratory, and is mainly applied to the industries of biology, medicine, health, electronics, precise instruments, instruments and the like.
5. A biological safety cabinet. The biological safety cabinet is a main clean device for microbial experiment operation, can prevent the diffusion of toxic and harmful suspended particles which may exist, protect the safety of operators and the environment in the experiment process, and also can protect samples from being polluted in the operation process, and is widely applied to units such as universities and colleges, scientific research institutions, pharmaceutical factories, epidemic prevention and the like.
Therefore, the laboratory has high requirements on the safety storage cabinet, and mainly requires that the suspended harmful particles possibly existing in the cabinet body cannot be diffused into the room.
Chinese patent CN206262564U discloses a laboratory safety storage cabinet, which comprises a cabinet body, the articulated two cabinet doors that open in cabinet body front side, the top of the cabinet body is equipped with the suction opening that links to each other with outside air exhaust device, the inside interlayer that sets up a plurality of samples that are used for putting of fume chamber, leave the air duct between interlayer and the cabinet door, the internal portion of cabinet is close to cabinet body rear side and sets up the ventilation splint that form the water conservancy diversion slit with cabinet body rear side, set up the first through-hole of a plurality of intercommunication cabinet bodies and water conservancy diversion slits in the not co-altitude department on the ventilation splint. A plurality of air flow channels which can be communicated with the outside are arranged in the storage cabinet, and all layers in the cabinet body are communicated with the outside, so that the internal air of the storage cabinet is discharged.
The safe storage cabinet disclosed in this patent is not suitable for storing highly corrosive drugs.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a laboratory safe storage cabinet which can be used for storing common medicines and strong-corrosiveness medicines respectively.
The invention discloses a safe locker for a laboratory, which comprises:
the cabinet body is internally divided into a containing space for containing common medicines and a containing space for containing strong corrosion medicines;
the first ventilation mechanism is arranged in the cabinet body, is communicated with the accommodating space for accommodating common medicines and is used for ventilating the accommodating space for accommodating the common medicines;
the second ventilation mechanism set up in the internal portion of cabinet and with the accommodation space intercommunication for placing the strong medicine that corrodes for ventilate for placing the accommodation space of strong medicine that corrodes.
Further, the cabinet body is separated into five layers by a plurality of horizontal clapboards from top to bottom at least, and is respectively a first ventilation layer for placing a first ventilation mechanism, a medicine protection layer for placing common medicines, an equipment layer, a strong corrosion medicine protection layer for placing corrosion medicines, and a second ventilation layer, wherein the equipment layer and the second ventilation layer are used for placing a second ventilation mechanism.
Further, the first ventilation layer and the medicine storage layer are separated by a ventilation plate full of ventilation holes, the medicine storage layer and the equipment layer are separated by a partition plate, the equipment layer and the strong corrosion medicine storage layer are separated by a ventilation plate full of ventilation holes, the strong corrosion medicine storage layer and the second ventilation layer are separated by a partition plate, the lowest layer plate of the second ventilation layer is a bottom plate which is also used as a bottom plate of the cabinet body, a first ventilation mechanism communicated with the medicine storage layer is installed in the first ventilation layer, a second ventilation mechanism communicated with the second ventilation layer and the strong corrosion medicine storage layer in sequence is installed in the equipment layer, the first ventilation mechanism is linked with the second ventilation mechanism, the first ventilation mechanism comprises an air outlet pipe which is arranged at the top end of the first ventilation layer and extends vertically upwards, a motor fixing frame is arranged in the air outlet pipe, a motor with an output end arranged vertically downwards is fixedly installed on the motor fixing frame, the output shaft of the motor is fixedly provided with a turbofan positioned inside the first ventilation layer, and a rotating shaft of the turbofan is vertically arranged.
Furthermore, the medicine storage layer comprises a double-layer middle partition plate vertically arranged in the middle of the medicine storage layer, the double-layer middle partition plate divides the medicine storage layer into a left medicine storage cabinet and a right medicine storage cabinet, a plurality of parallel sliding grooves are formed in the inner wall of each medicine storage cabinet and the inner wall of the double-layer middle partition plate, a medicine placing frame is slidably mounted on each sliding groove, an air supplementing opening communicated with indoor air is formed in each medicine storage cabinet, a cabinet door is mounted on the outer side of each medicine storage cabinet, and a handle is mounted on each cabinet door; be provided with wall installation mechanism on the backplate that leans on the wall in the cabinet is kept to medicine, wall installation mechanism is including a plurality of expansion bolts installation slotted holes that run through cabinet body backplate, the outside of expansion bolts installation slotted hole is provided with the sealed sleeve that the level extends towards cabinet body inside, be provided with the internal thread in the sealed sleeve, install sealed post on the sealed sleeve, sealed post is including erection column and sealed lid, the erection column is hollow cylinder, the outside of erection column is provided with the external screw thread, the erection column install inside sealed sleeve and with sealed sleeve threaded connection, sealed lid sets up the one side at the erection column and covers on sealed sleeve, still be provided with the sealing washer between sealed sleeve and the sealed lid.
Furthermore, a guide plate mounting column horizontally extending towards the interior of the cabinet body is arranged on one side, away from the sealing sleeve, of the sealing cover, external threads are arranged on the guide plate mounting column, a guide plate is further arranged in the medicine storage cabinet, and the guide plate is fixedly mounted on the guide plate mounting column;
the guide plate vertically upwards extends to the spout department of the superiors from the spout department of lower floor, and the slope upwards extends to the roof butt with the cabinet is kept to the medicine afterwards towards the direction of cabinet door, and the side of guide plate and the lateral wall butt of cabinet is kept to the medicine, and the tonifying qi mouth sets up the top at the cabinet is kept to the medicine.
Furthermore, the medicine placing frame comprises a bearing plate and a protection plate, wherein the bearing plate is slidably arranged in the sliding groove, and the protection plate vertically extends upwards from the periphery of the bearing plate.
Furthermore, the second ventilating mechanism comprises a turbine, a turbine chamber, an air outlet pipeline and a venturi, a linkage rod which vertically penetrates through the medicine storage layer downwards and is connected with the turbine in a transmission mode is installed on a rotating shaft of the turbine fan, the linkage rod is located in the middle of the partition plate in the double layers, the turbine chamber is installed on the outer side of the turbine, the rotating shaft of the turbine is coaxially arranged with the turbine fan, an air outlet of the turbine chamber is vertically arranged downwards, the air inlet level of the turbine chamber is arranged towards the outer side of the cabinet body, the air outlet of the turbine chamber is provided with an air outlet pipeline which extends downwards to penetrate through the strong-corrosion medicine storage layer in sequence, the second ventilating layer is communicated with outdoor air, the venturi is arranged at the middle end of the air outlet pipeline, a negative pressure end of the venturi is provided with a branch pipe which extends to the inner portion of the strong-corrosion medicine storage layer, and the air outlet pipeline, the venturi and the branch pipe are made of inert materials.
Furthermore, the strong corrosion medicine storage layer comprises a double-layer middle partition plate vertically arranged in the middle of the strong corrosion medicine storage layer, the double-layer middle partition plate separates the strong corrosion medicine storage layer into a left strong corrosion medicine storage cabinet and a right strong corrosion medicine storage cabinet, the bottom end of the strong corrosion medicine storage cabinet is provided with a negative pressure chamber communicated with a branch pipe, the strong corrosion medicine storage cabinet is internally provided with a special strong corrosion medicine cabinet arranged above the negative pressure chamber, the bottom plate of the special strong corrosion medicine cabinet is fully provided with ventilation holes communicated with the negative pressure chamber, and the negative pressure chamber and the special strong corrosion medicine cabinet are made of inert materials.
Furthermore, the side surface of the negative pressure chamber is provided with a vent hole, the branch pipe is arranged in the vent hole, the top surface of the negative pressure chamber is provided with a bearing grid plate, and the special cabinet for the strong corrosion medicines is slidably arranged on the bearing grid plate.
Furthermore, a plurality of foundation bolt mounting holes are formed in the bottom plate.
Further, still be equipped with purification and absorption device in the air-out pipeline, purification and absorption device (6) include:
the shell is of a barrel-shaped structure, a first opening and a second opening are respectively formed in the upper end and the lower end of the shell, and the lower end of the shell is fixedly arranged on the inner wall of the air outlet pipeline;
the two ends of the variable-volume air bag are respectively and fixedly connected to the bottom wall and the inner side wall of the shell, the variable-volume air bag and the shell enclose a variable-space cavity, and the bottom of the cavity is provided with a vent hole;
the chemical substance absorption tube is fixedly arranged at the upper end in the shell and is hermetically connected with the first opening through a sealing baffle, the side wall and the bottom of the chemical substance absorption tube are hollow, and an absorption inner core is arranged in the chemical substance absorption tube;
the absorption inner core is internally provided with a filtering layer, a drying layer and a chemical impurity removal layer in sequence from the side wall of the chemical substance absorption tube, the upper part of the absorption inner core is provided with a nano adsorption layer, and the nano adsorption layer is arranged at the upper ends of the filtering layer, the drying layer and the chemical impurity removal layer;
the protective cover, its threaded connection that loops through adapter sleeve and locking ring covers and closes the upper end of chemical substance absorption tube, locking ring with the inner wall thread rigid coupling of chemical substance absorption tube, the up end of locking ring with the lower terminal surface thread rigid coupling of adapter sleeve, the up end of adapter sleeve with the lower terminal surface threaded connection of protective cover, still be equipped with a plurality of through-holes on the lateral wall of adapter sleeve, the through-hole with the chemical substance absorption tube constitutes airflow channel jointly, arranges in the inside gas of chemical substance absorption tube passes through airflow channel flows, the up end of locking ring with still be equipped with the circular slot that is used for placing the support ball between the lower terminal surface of protective cover.
Further, the exit of air-out pipeline still is equipped with flow sensor and impurity content sensor, flow sensor and impurity content sensor are connected with the input electricity of controller, the controller is used for controlling the work of air-out pipeline, the output of controller is connected with the control of the turbine of air-out pipeline and the control electricity of pneumatic valve, the pneumatic valve is used for controlling the draught pipe diameter of air-out pipeline, the controller contains a control circuit, control circuit includes:
a pin 1 of the flow sensor is connected with a voltage input end, a pin 3 of the flow sensor is grounded, a capacitor C1 is connected between the pins 1 and 3, and a pin 2 of the flow sensor is sequentially connected with a resistor R1 and an inductor M1 in series;
the pin 1 of the impurity content sensor is connected with a voltage input end, the pin 3 of the impurity content sensor is grounded, a capacitor C2 is connected between the pins 1 and 3, and the pin 2 of the impurity content sensor is sequentially connected with a resistor R2 and an inductor M2 in series;
the upper end of the capacitor C3 is connected with the right end of the inductor M1, and the lower end of the capacitor C3 is connected with the right end of the capacitor M2;
a positive phase input end of the gain device T1 is connected in series with the R4, the other end of the R4 is respectively connected with the R6 and the R7, a negative phase input end of the gain device T1 is respectively connected with the lower end of the capacitor C3, the resistor R3 and the capacitor C4, and an output end of the gain device T1 is connected with one end of the R5;
a capacitor C4, the upper end of which is connected with the negative phase input end of the booster T1, and the lower end of which is grounded;
the other end of the resistor R5 is sequentially connected with a resistor R6 and a resistor R7 in series, and the other end of the resistor R7 is grounded;
the anode of the voltage stabilizing diode P1 is connected with the right end of the R5, the cathode of the voltage stabilizing diode P1 is connected with the cathode of the voltage stabilizing diode P2, and the anode of the voltage stabilizing diode P2 is grounded;
a pin 1 of the frequency transmitter W1 is respectively connected with the anodes of a resistor R8 and a diode D2, the cathode of the diode D2 is grounded, and the other end of the resistor R8 is connected with a power supply; pin 2 is connected to the positive electrode of a zener diode P1; pins 3 and 4 are grounded; pins 5 and 9 are connected with the input end of the power supply; a pin 8 of the capacitor is respectively connected with the cathode of the diode D3 and one end of the capacitor C5, the anode of the diode D3 is grounded, and the other end of the capacitor C5 is connected with a pin 7 and a pin 6; the pin 6 is also connected with a resistor R9 and a capacitor C6 which are connected in parallel, and the pin 6, the resistor R9 and the capacitor C6 are grounded;
the negative phase input ends of the gain device T2 and the gain device T3 are connected with a voltage signal output by a pin 7 of the frequency transmitter W1, the voltage signal is compared with the voltage of a comparison circuit consisting of resistors R10, R11 and R12 connected with the positive phase input ends of the gain device T2 and the gain device T3, the output end of the gain device T2 is connected with a control element L1 of the turbine, and the output end of the gain device T3 is connected with a control element of the air valve.
Has the advantages that:
ordinary medicines are placed on a medicine placing frame in a medicine storage cabinet, a motor works to drive a turbofan to rotate so as to extract air from a first ventilation layer and discharge the air through an air outlet pipe, negative pressure is generated in the first ventilation layer, air is extracted from the medicine storage layer through a ventilation plate, and negative pressure is generated in the medicine storage layer;
indoor air enters the medicine storage cabinet through the air supplementing opening, then flows downwards along the space between the cabinet door and the guide plate, sequentially passes through the multilayer medicine placing frames, flows to the bottom end of the medicine storage cabinet, then flows to the other side of the guide plate, then flows upwards along the space between the guide plate and the back plate of the medicine storage cabinet, and then flows into the first ventilation layer through the ventilation plate, so that air replacement in the medicine storage layer is realized;
the turbo fan is linked with the turbine through the linkage rod, so that the motor drives the turbine to rotate at the same time, the turbine sucks air from the room through the turbine chamber and discharges the air into the air outlet pipeline, the air flows in the air outlet pipeline and passes through the venturi to generate a venturi effect, so that the branch pipe generates negative pressure, the branch pipe extracts air from the negative pressure chamber, the indoor air further enters the equipment layer and flows downwards into the special strong corrosion medicine cabinet through the ventilating plate, and the air in the special strong corrosion medicine cabinet flows into the negative pressure chamber through the ventilating hole at the bottom end of the special strong corrosion medicine cabinet and the bearing grid plate and is pumped away by the branch pipe, so that air replacement of the strong corrosion medicine storage layer is realized;
because the cabinet is kept to strong corruption medicine all needs to wash after every use, only need take out the special cabinet of strong corruption medicine this moment, then wash with the water negative pressure chamber can, rivers pass through the bearing grid plate and enter into the negative pressure chamber, then be taken away by the branch pipe, rivers loop through venturi tube and air-out pipeline downstream and finally flow out outdoors, because turbine and turbine room are located the top on strong corruption medicine guarantor's layer and the gas in the air-out pipeline flows outward, make and need not to stop work of second ventilation mechanism and also can wash strong corruption medicine guarantor's layer.
1. The safe locker cabinet can store common medicines and strong corrosive medicines respectively.
2. The first ventilation mechanism and the second ventilation mechanism of the safe storage cabinet are linked, so that the two ventilation mechanisms can be driven to work together only by one power source device;
3. the strong-corrosion medicine storage layer of the safe storage cabinet does not need to be cleaned in a shutdown mode, so that the work of a common medicine storage layer cannot be influenced when the strong-corrosion medicine storage layer is cleaned.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a perspective view of an embodiment;
FIG. 2 is a front view of the embodiment;
FIG. 3 is a side sectional view of the embodiment;
FIG. 4 is a perspective sectional view of the embodiment;
FIG. 5 is a front view of the embodiment with the cabinet doors and grid plates removed;
FIG. 6 is a partial enlarged view of the embodiment shown in FIG. 5 at A;
FIG. 7 is an exploded perspective view of the embodiment;
FIG. 8 is a partial enlarged view of the embodiment shown in FIG. 7 at B;
FIG. 9 is a perspective view showing the internal structure of the embodiment;
FIG. 10 is a partial enlarged view of the embodiment of FIG. 8 at C;
fig. 11 is a perspective view of the cabinet of the embodiment;
FIG. 12 is a partial enlarged view of the embodiment of FIG. 10 at D;
FIG. 13 is a partial enlarged view of the embodiment of FIG. 10 at E;
FIG. 14 is a schematic view of the structure of a purification and absorption apparatus;
fig. 15 is a control circuit diagram of the controller.
Description of reference numerals:
a first ventilation layer 1, a ventilation board 1a, an air outlet pipe 1b, a motor fixing frame 1c, a motor 1d, a turbofan 1e, a linkage rod 1f, a medicine storage layer 2, a partition board 2a, a double-layer partition board 2b, a medicine storage cabinet 2c, a chute 2c1, an air supplement port 2c2, a guide plate 2c3, a medicine placing frame 2d, a bearing board 2d1, a protection board 2d2, a cabinet door 2e, a handle 2e1, a wall surface installation mechanism 2f, an expansion bolt installation slot 2f1, a sealing sleeve 2f2, a sealing ring 2f3, an installation column 2f4, a sealing cover 2f5, a guide plate installation column 2f6, an equipment layer 3, a ventilation board 3a, a turbine 3b, a turbine chamber 3c, an air outlet pipeline 3d, a venturi tube 3e, a branch pipe 3e1, a strong corrosion medicine storage layer 4, a double-layer partition board 4b, a strong corrosion medicine partition board 4c, a negative pressure medicine storage cabinet 4d, the device comprises a bearing grid plate 4d1, a strong corrosion medicine special cabinet 4e, a second ventilation layer 5, a bottom plate 5a, foundation bolt mounting holes 5a1, 6-purification and absorption devices, 6 a-shells, 6a 1-first openings, 6a 2-second openings, 6 b-variable-volume air bags, 6b 1-containing cavities, 6b 2-ventilation holes, 6 c-chemical substance absorption tubes, 6c 1-sealing baffles, 6 d-absorption inner cores, 6d 1-filter layers, 6d 2-drying layers, 6d 3-chemical impurity removal layers, 6d 4-nano adsorption layers, 6 e-absorption covers, 6e 1-airflow channels, 6e 2-supporting balls, 6e 3-connecting sleeves and 6e 4-locking rings.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 13, a safe locker for laboratories, a cabinet, the interior of which is divided into a containing space for placing ordinary medicines and a containing space for placing strong corrosive medicines;
the first ventilation mechanism is arranged in the cabinet body, is communicated with the accommodating space for accommodating common medicines and is used for ventilating the accommodating space for accommodating the common medicines;
the second ventilation mechanism set up in the internal portion of cabinet and with the accommodation space intercommunication for placing the strong medicine that corrodes for ventilate for placing the accommodation space of strong medicine that corrodes.
The cabinet body is divided into a multilayer structure and can be used for storing common medicines and strong-corrosiveness medicines respectively, and the ventilation mechanisms are arranged respectively to ventilate and protect the interior of the cabinet body.
The cabinet body is separated into five layers from top to bottom at least by a plurality of horizontal clapboards, and is respectively a first ventilation layer 1 for placing a first ventilation mechanism, a medicine pipe layer 2 for placing common medicines, an equipment layer 3, a strong corrosion medicine pipe layer 4 for placing corrosion medicines and a second ventilation layer 5, wherein the equipment layer 3 and the second ventilation layer 5 are used for placing a second ventilation mechanism.
Partition through ventilating board 1a full of ventilation hole between layer 2 is kept to first ventilating layer 1 and medicine, it cuts off through partition panel 2a between medicine layer 2 and the equipment layer 3, cut off through ventilating board 3a full of ventilation hole between equipment layer 3 and the strong corrosion medicine layer 4, cut off through partition panel 4a between strong corrosion medicine layer 4 and the second ventilating layer 5, the bottom plate of second ventilating layer 5 is bottom plate 5a, bottom plate 5a is the cabinet body bottom plate concurrently, install the first ventilation mechanism who keeps layer 2 intercommunication with the medicine in the first ventilating layer 1, install the second ventilation mechanism who communicates second ventilating layer 5 and strong corrosion medicine layer 4 in the order in the equipment layer 3, first ventilation mechanism and the linkage of second ventilation mechanism. First ventilation mechanism is including setting up at 1 top of first ventilation layer and the vertical play tuber pipe 1b that upwards extends, is provided with motor mount 1c in the play tuber pipe 1b, and fixed mounting has the vertical motor 1d that sets up downwards of output on the motor mount 1c, and fixed mounting has the turbofan 1e that is located 1 inside of first ventilation layer on the output shaft of motor 1d, and the vertical setting of turbofan 1 e's rotation axis.
Ordinary medicine is placed in layer 2 is kept to the medicine, first ventilation mechanism is taken care of layer 2 and is bled and discharge outdoors on the top of layer 2 is kept to the medicine, layer 2 is kept from indoor tonifying qi to the medicine, thereby form gaseous replacement, the strong corrosion medicine is placed in strong corrosion medicine keeps layer 4, second ventilation mechanism is taken care of and is discharged outdoors through second ventilation layer 5 in strong corrosion medicine keeps layer 4's top work follow strong corrosion medicine keeps layer 4, strong corrosion medicine keeps layer 4 from indoor tonifying qi, thereby form gaseous replacement, first ventilation mechanism and the linkage of second ventilation mechanism make first ventilation mechanism and second ventilation mechanism only need a power device.
Medicine keeps taking layer 2 including vertical setting in the middle of medicine keeps taking layer 2 double-deck median septum 2b, median septum 2b separates into medicine keeping layer 2 and controls two medicine keeping cabinets 2c in the double-deck, be provided with many parallel spouts 2c1 each other on the inner wall of medicine keeping cabinet 2c and the double-deck median septum 2 b's the inner wall, install medicine rack 2d on the spout 2c1 slidable, medicine keeping cabinet 2c is last to have the tonifying qi mouth 2c2 with the indoor air intercommunication, cabinet door 2e is installed in medicine keeping cabinet 2 c's the outside, install handle 2e1 on the cabinet door 2 e.
In the medicine storage cabinet 2c, a back plate close to a wall is provided with a wall surface mounting mechanism 2f, the wall surface mounting mechanism 2f comprises a plurality of expansion bolt mounting groove holes 2f1 penetrating through a cabinet body back plate, the outer side of the expansion bolt mounting groove hole 2f1 is provided with a sealing sleeve 2f2 horizontally extending towards the inside of the cabinet body, an internal thread is arranged in the sealing sleeve 2f2, a sealing column is arranged on the sealing sleeve 2f2 and comprises a mounting column 2f4 and a sealing cover 2f5, the mounting column 2f4 is a hollow cylinder, an external thread is arranged on the outer side of the mounting column 2f4, the mounting column 2f4 is arranged in the sealing sleeve 2f2 and is in threaded connection with the sealing sleeve 2f2, the sealing cover 2f5 is arranged on one side of the mounting column 2f4 and covers the sealing sleeve 2f2, and a sealing ring 2f3 is further arranged between the sealing sleeve 2f2 and the sealing column.
The cabinet body is arranged close to a wall, an expansion bolt is driven into the wall surface, then the expansion bolt mounting groove hole 2f1 is sleeved on the expansion bolt, then the cabinet body is fixed on the expansion bolt by using a nut, then the interior of the sealing sleeve 2f2 is filled with fire-proof mud, and the expansion bolt mounting groove hole 2f1 is sealed up, so that the cabinet body can be fixed on the wall, and the wall surface mounting mechanism 2f has certain fire-proof performance;
then the sealing column is rotatably mounted on the sealing sleeve 2f2 and the sealing ring 2f3 is mounted in the sealing sleeve, the mounting column 2f4 is a hollow cylinder, so that the mounting column 2f4 can not contact with the expansion bolt in the sealing sleeve 2f2, and after the mounting is finished, the interior of the cabinet can not generate air circulation with the outside through the wall mounting mechanism 2f, thereby having air tightness.
The laboratory technician can open cabinet door 2e through handle 2e1, thereby take out or place the tablet on medicine rack 2d, medicine rack 2d can slide in or take out from spout 2c1, make medicine rack 2d place on arbitrary one deck spout 2c1, thereby make the laboratory technician can be as required, install the medicine rack 2d of appropriate quantity on spout 2c1, and adjust the interval between medicine rack 2d each other to suitable distance, first ventilation mechanism inhales in to medicine cabinet 2c through ventilating board 1a, medicine cabinet 2c supplements the air through tonifying qi mouth 2c 2.
The motor 1d works to drive the turbofan 1e to rotate, air in the medicine storage layer 2 flows upwards to the first ventilation layer 1 through the ventilation plate 1a, the turbofan 1e rotates to suck air in the first ventilation layer 1 from the side to the middle and upwards blows out the air through the air outlet pipe 1b, and the air outlet pipe 1b is directly communicated with the outside through an air guide pipe.
A guide plate mounting column 2f6 horizontally extending towards the inside of the cabinet body is arranged on one side, away from the sealing sleeve 2f2, of the sealing cover 2f5, external threads are arranged on the guide plate mounting column 2f6, a guide plate 2c3 is further arranged in the medicine storage cabinet 2c, and a guide plate 2c3 is fixedly arranged on the guide plate mounting column 2f 6;
the deflector 2c3 extends vertically upward from the lowest sliding groove 2c1 to the uppermost sliding groove 2c1, then extends obliquely upward and toward the direction of the cabinet door 2e until the deflector abuts against the top plate of the medicine storage cabinet 2c, the side edge of the deflector 2c3 abuts against the side wall of the medicine storage cabinet 2c, and the air supplement opening 2c2 is arranged at the top end of the medicine storage cabinet 2 c.
The guide plate mounting column 2f6 is fixedly provided with a guide plate 2c3 through a nut, the guide plate 2c3 divides the medicine storage cabinet 2c into a front side for placing medicines and a rear side for ventilation, so as to form a slit type ventilation cabinet, indoor air flows towards the inside of the medicine storage cabinet 2c through an air supplement port 2c2 at the top end of the medicine storage cabinet 2c, the air sequentially flows to the bottom end of the medicine storage cabinet 2c from top to bottom through a plurality of medicine placing frames 2d, then winds behind the guide plate 2c3, flows upwards along the space between the guide plate 2c3 and the back plate of the medicine storage cabinet 2c, and finally flows into the first ventilation layer 1 through the ventilation plate 1 a.
The medicine placing rack 2d comprises a bearing plate 2d1 and a protection plate 2d2, wherein the bearing plate 2d1 is slidably arranged in the sliding groove 2c1, and the protection plate 2d2 vertically extends upwards from the periphery of the bearing plate 2d 1.
The bearing plate 2d1 is used to act as a slide block and bear the weight of the medicine, and the protection plate 2d2 is used to prevent the medicine from pouring or act as an anti-leakage groove when the medicine is poured, and prevent the medicine in the layer from pouring to the next layer.
The second ventilating mechanism comprises a turbine 3b, a turbine chamber 3c, an air outlet pipeline 3d and a venturi 3e, a linkage rod 1f which vertically penetrates through the medicine storage layer 2 downwards and is in transmission connection with the turbine 3b is installed on a rotating shaft of the turbine fan 1e, the linkage rod 1f is positioned in the middle of the double-layer middle partition plate 2b, the turbine chamber 3c is installed on the outer side of the turbine 3b, the rotating shaft of the turbine 3b and the turbine fan 1e are coaxially arranged, an air outlet of the turbine chamber 3c is vertically arranged downwards, an air inlet of the turbine chamber 3c is horizontally arranged towards the outer side of the cabinet body, an air outlet of the turbine chamber 3c is provided with an air outlet pipeline 3d which downwardly extends through the strong corrosion medicine storage layer 4 and the second ventilating layer 5 in sequence and is communicated with outdoor air, the venturi 3e is arranged at the middle end of the air outlet pipeline 3d, a branch pipe 3e1 which extends to the inside the strong corrosion medicine storage layer 4 is arranged at the negative pressure end of the venturi 3e, the air outlet pipeline 3d, the venturi tube 3e and the branch pipe 3e1 are all made of inert materials.
When the motor 1d works to drive the turbofan 1e to rotate, the turbine 3b and the turbofan 1e synchronously rotate through the linkage rod 1f, so that air is extracted from the indoor by the air inlet of the turbine chamber 3c and exhausted into the air outlet pipeline 3d, the air flows through the venturi tube 3e in the air outlet pipeline 3d to generate a venturi effect, negative pressure is generated in the branch pipe 3e1, and the air with strong corrosion on the medicine storage layer 4 sequentially passes through the branch pipe 3e1, the venturi tube 3e and the air outlet pipeline 3d and is directly exhausted to the outdoor;
the air outlet pipeline 3d, the venturi tube 3e and the branch pipe 3e1 are all made of inert materials, such as 316 stainless steel, ceramic and the like, and air in the strong corrosion medicine protection layer 4 is sucked by negative pressure generated by the venturi effect, so that the strong corrosion gas in the strong corrosion medicine protection layer 4 can not corrode mechanical mechanisms such as turbines and the like which are difficult to use inert materials for production.
The strong corrosion medicine keeps pipe layer 4 including vertical setting in the double-deck median septum 4b in strong corrosion medicine keeps pipe layer 4 middle, median septum 4b keeps pipe 4 and separates into two strong corrosion medicine of left and right sides and keeps cabinet 4c in the double-deck median septum, the bottom of strong corrosion medicine keeps cabinet 4c is provided with the negative pressure chamber 4d with branch pipe 3e1 intercommunication, install the special cabinet 4e of strong corrosion medicine that sets up in negative pressure chamber 4d top in the strong corrosion medicine keeps cabinet 4c, full cloth is gone up with the ventilation hole that communicates with negative pressure chamber 4d on the bottom plate of the special cabinet 4e of strong corrosion medicine, negative pressure chamber 4d and the special cabinet 4e of strong corrosion medicine are inert material preparation.
The special strong corrosion medicine cabinet 4e is a drawer type storage cabinet, and is taken out or put back by drawing, the bottom plate of the special strong corrosion medicine cabinet 4e is communicated with the negative pressure chamber 4d through the vent hole, the strong corrosion medicine is placed on the bottom plate, the gas volatilized by the strong corrosion medicine flows into the negative pressure chamber 4d through the vent hole, and then is pumped out through the branch pipe 3e1, and the gas pumped out from the strong corrosion medicine cabinet 4c is supplemented by sucking air from the equipment layer 3 through the ventilating board 3 a.
The side surface of the negative pressure chamber 4d is provided with a vent hole, the branch pipe 3e1 is arranged in the vent hole, the top surface of the negative pressure chamber 4d is provided with a bearing grid plate 4d1, and the special cabinet for strong corrosion medicine 4e can be slidably arranged on the bearing grid plate 4d 1.
The load-bearing grid plate 4d1 is used for bearing the weight of the special strong corrosion chemical cabinet 4e, and meanwhile, the gas in the special strong corrosion chemical cabinet 4e cannot be influenced to flow into the strong corrosion chemical storage layer 4.
The bottom plate 5a is provided with a plurality of anchor bolt mounting holes 5a 1.
The cabinet body can be fixedly installed on the ground through the anchor bolt installation holes 5a 1.
The working principle is as follows:
ordinary medicines are placed on a medicine placing rack 2d in a medicine storage cabinet 2c, a motor 1d works to drive a turbofan 1e to rotate so as to draw air from a first ventilation layer 1 and discharge the air through an air outlet pipe 1b, negative pressure is generated in the first ventilation layer 1 and air is drawn from a medicine storage layer 2 through a ventilation plate 1a, and negative pressure is generated in the medicine storage layer 2;
indoor air enters the medicine storage cabinet 2c through the air supplementing opening 2c2, then flows downwards along the space between the cabinet door 2e and the guide plate 2c3, sequentially flows to the bottom end of the medicine storage cabinet 2c through the multilayer medicine placing frame 2d, then flows to the other side of the guide plate 2c3, then flows upwards along the space between the guide plate 2c3 and the back plate of the medicine storage cabinet 2c, and then flows into the first ventilation layer 1 through the ventilation plate 1a, so that air replacement in the medicine storage layer 2 is realized;
the turbo fan 1e and the turbine 3b are linked through the linkage rod 1f, so that the motor 1d drives the turbine 3b to rotate at the same time, the turbine 3b works to suck air from the room through the turbine chamber 3c and discharge the air into the air outlet pipeline 3d, the air generates a venturi effect when flowing through the venturi 3e in the air outlet pipeline 3d, so that negative pressure is generated at the branch pipe 3e1, the branch pipe 3e1 extracts air from the negative pressure chamber 4d, further indoor air enters the equipment layer 3 and flows downwards into the special strong corrosion medicine cabinet 4e through the ventilation plate 3a, the air in the special strong corrosion medicine cabinet 4e flows into the negative pressure chamber 4d through the ventilation hole at the bottom end of the special strong corrosion medicine cabinet 4e and the bearing grid plate 4d1 and is pumped away by the branch pipe 3e1, and air replacement of the strong corrosion medicine protection layer 4 is realized;
because the strong corrosion medicine storage cabinet all needs to be cleaned after being used each time, only need take out the special cabinet 4e of strong corrosion medicine this moment, then wash with water negative pressure chamber 4d can, rivers enter into negative pressure chamber 4d through bearing grid plate 4d1, then are taken away by branch pipe 3e1, rivers loop through venturi tube 3e and air-out pipeline 3d and flow downwards and finally flow to outdoor, because turbine 3b and turbine chamber 3c are located the top of strong corrosion medicine storage layer 4 and the gas in the air-out pipeline 3d flows outward, make and need not to stop work of second ventilation mechanism and also can wash strong corrosion medicine storage layer 4, make and wash its strong corrosion medicine storage layer can not influence the work of ordinary medicine storage layer.
In another embodiment, as shown in fig. 14, a purifying and absorbing device 6 is further disposed in the air outlet duct 3d, and the purifying and absorbing device 6 includes:
the shell 6a is of a barrel-shaped structure, the upper end and the lower end of the shell are respectively provided with a first opening 6a1 and a second opening 6a2, and the lower end of the shell 6a is fixedly arranged on the inner wall of the air outlet pipeline 3 d; the lower end of the shell 6a is provided with a transverse edge, and the transverse edge is fixedly connected with a connecting plate which is integrally formed with the inner wall of the air outlet pipeline 3d through a bolt;
two ends of the variable volume airbag 6b are respectively fixedly connected to the bottom wall and the inner side wall of the housing 6a, the variable volume airbag and the housing 6a enclose a variable space containing cavity 6b1, and the bottom of the containing cavity 6b1 is provided with a vent hole 6b 2; the variable-volume bag 6b is provided at the second opening 6a2 of the case 6a for controlling the size of the second opening 6a 2;
the chemical substance absorption tube 6c is fixedly arranged at the upper end in the shell 6a and is hermetically connected with the first opening 6a1 through a sealing baffle 6c1, the side wall and the bottom of the chemical substance absorption tube 6c are hollow, and an absorption inner core 6d is arranged in the chemical substance absorption tube; the safe locker of the laboratory often stores some chemicals, and the air in the locker inevitably contains some harmful chemical residues, so the absorption inner core 6d in the chemical substance absorption pipe 6c is used for removing the harmful chemical residues in the exhaust gas;
an absorption core 6d, a filter layer 6d1, a drying layer 6d2 and a chemical impurity removing layer 6d3 are sequentially arranged from the side wall of the chemical substance absorption tube 6c to the inside, a nano adsorption layer 6d4 is arranged at the upper part of the absorption core 6d, and the nano adsorption layer 6d4 is arranged at the upper ends of the filter layer 6d1, the drying layer 6d2 and the chemical impurity removing layer 6d 3; the absorption core 6d is used for absorbing the air exhausted from the storage cabinet, so that the filtering layer 6d1 is used for removing solid particles such as dust and the like in the exhaust gas, the drying layer 6d2 is used for removing moisture in the exhaust gas, the chemical impurity removing layer 6d3 is used for removing chemical substances in the exhaust gas, and the nano adsorption layer 6d4 is used for ensuring that impurities in the exhaust gas are completely removed. The arrangement among the layers of the absorption inner core 6d is set according to the characteristics of impurities, after dust in exhaust gas is filtered by the filter layer 6d1, moisture can flow inwards under the adsorption of the drying layer 6d2 and cannot flow upwards to the nano adsorption layer 6d4 directly, and chemical impurities can flow inwards to the chemical impurity removal layer 6d3 under the adsorption of the chemical impurity removal layer 6d3 and can react with the chemical impurity removal layer to cause no direct upwards flow to the nano adsorption layer 6d 4;
the chemical substance absorption tube comprises a protective cover 6e, a connecting sleeve 6e3 and a locking ring 6e4 are sequentially connected with each other through threads and covered at the upper end of the chemical substance absorption tube 6c, the locking ring 6e4 is fixedly connected with the inner wall threads of the chemical substance absorption tube 6c, the upper end face of the locking ring 6e4 is fixedly connected with the lower end face of the connecting sleeve 6e3 through threads, the upper end face of the connecting sleeve 6e3 is connected with the lower end face of the protective cover 6e through threads, a plurality of through holes are further formed in the side wall of the connecting sleeve 6e3, the through holes and the chemical substance absorption tube 6c form an air flow channel (6e1) together, air in the chemical substance absorption tube 6c flows out through the air flow channel 6e1, and a circular groove for placing and supporting balls 6e2 is further formed between the upper end face of the locking ring 6e4 and the lower end face of the protective cover 6 e.
The working principle of the technical scheme is as follows: the air in the air outlet pipeline 3d flows through the purifying and absorbing device 6 to be treated and then is discharged into the atmosphere. When passing through purification absorbing device 6, in order to avoid the gaseous velocity of flow to be too fast can not thoroughly drive impurity, control the velocity of flow through varactor gasbag 6b, when the velocity of flow was too fast, more gas made its volume grow in flowing into varactor gasbag 6b through gas vent 6b2, and then made the second opening diminish, consequently the gas that flows into absorption inner core 6d will slow down to reach the more thorough mesh of getting rid of impurity. The gas is removed by the absorption inner core 6d, then flows into the air outlet pipeline 3d through the gas flow channel 6e1 and is exhausted to the atmosphere.
The beneficial effects of the above technical scheme are that: harmful impurities in air in the laboratory storage cabinet can be thoroughly removed, the phenomenon that the air is discharged to pollute the environment or cause physical damage of personnel is avoided, and the like, and the laboratory storage cabinet is safe and environment-friendly.
In an embodiment, as shown in fig. 15, a flow sensor and an impurity content sensor are further disposed at an outlet of the air outlet duct, the flow sensor and the impurity content sensor are electrically connected to an input end of a controller, the controller is configured to control operation of the air outlet duct, an output end of the controller is electrically connected to a control element of a turbine of the air outlet duct and a control element of an air valve, the air valve is configured to control a ventilation pipe diameter of the air outlet duct, the controller includes a control circuit, and the control circuit includes:
a pin 1 of the flow sensor is connected with a voltage input end, a pin 3 of the flow sensor is grounded, a capacitor C1 is connected between the pins 1 and 3, and a pin 2 of the flow sensor is sequentially connected with a resistor R1 and an inductor M1 in series;
the pin 1 of the impurity content sensor is connected with a voltage input end, the pin 3 of the impurity content sensor is grounded, a capacitor C2 is connected between the pins 1 and 3, and the pin 2 of the impurity content sensor is sequentially connected with a resistor R2 and an inductor M2 in series;
the upper end of the capacitor C3 is connected with the right end of the inductor M1, and the lower end of the capacitor C3 is connected with the right end of the capacitor M2;
a positive phase input end of the gain device T1 is connected in series with the R4, the other end of the R4 is respectively connected with the R6 and the R7, a negative phase input end of the gain device T1 is respectively connected with the lower end of the capacitor C3, the resistor R3 and the capacitor C4, and an output end of the gain device T1 is connected with one end of the R5;
a capacitor C4, the upper end of which is connected with the negative phase input end of the booster T1, and the lower end of which is grounded;
the other end of the resistor R5 is sequentially connected with a resistor R6 and a resistor R7 in series, and the other end of the resistor R7 is grounded;
the anode of the voltage stabilizing diode P1 is connected with the right end of the R5, the cathode of the voltage stabilizing diode P1 is connected with the cathode of the voltage stabilizing diode P2, and the anode of the voltage stabilizing diode P2 is grounded;
a pin 1 of the frequency transmitter W1 is respectively connected with the anodes of a resistor R8 and a diode D2, the cathode of the diode D2 is grounded, and the other end of the resistor R8 is connected with a power supply; pin 2Y is connected to the positive terminal of a zener diode P1; pins 3 and 4 are grounded; pins 5 and 9 are connected with the input end of the power supply; a pin 8 of the capacitor is respectively connected with the cathode of the diode D3 and one end of the capacitor C5, the anode of the diode D3 is grounded, and the other end of the capacitor C5 is connected with a pin 7 and a pin 6; the pin 6 is also connected with a resistor R9 and a capacitor C6 which are connected in parallel, and the pin 6, the resistor R9 and the capacitor C6 are grounded;
the negative phase input ends of the gain device T2 and the gain device T3 are connected with a voltage signal output by a pin 7 of the frequency transmitter W1, the voltage signal is compared with the voltage of a comparison circuit consisting of resistors R10, R11 and R12 connected with the positive phase input ends of the gain device T2 and the gain device T3, the output end of the gain device T2 is connected with a control element L1 of the turbine, and the output end of the gain device T3 is connected with a control element of the air valve.
Through the chemical impurity removal effect that detects flow sensor and impurity content sensor response air-out pipeline, when the effect is relatively poor, thereby carry out the deceleration to the turbine and open the size and slow down gas flow speed to reduce the pneumatic valve to improve the edulcoration effect.
Two paths of detection signals of the flow sensor and the impurity content sensor are filtered and converted into digital square wave signals, and the digital square wave signals are stabilized by the two voltage stabilizing diodes and then transmitted by the signal transmission line, so that the signals are prevented from being attenuated and interfered in the transmission process, and the accuracy of signal measurement and acquisition is improved.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. A laboratory safety locker comprising:
the cabinet body is internally divided into a containing space for containing common medicines and a containing space for containing strong corrosion medicines;
the first ventilation mechanism is arranged in the cabinet body, is communicated with the accommodating space for accommodating common medicines and is used for ventilating the accommodating space for accommodating the common medicines;
the second ventilation mechanism is arranged in the cabinet body, is communicated with the accommodating space for accommodating the strong corrosion medicines and is used for ventilating the accommodating space for accommodating the strong corrosion medicines;
the cabinet body is at least divided into five layers from top to bottom by a plurality of horizontal clapboards, the five layers are respectively a first ventilation layer (1) for placing a first ventilation mechanism, a medicine storage layer (2) for placing common medicines, an equipment layer (3), a strong corrosion medicine storage layer (4) for placing corrosion medicines and a second ventilation layer (5), and the equipment layer (3) and the second ventilation layer (5) are used for placing a second ventilation mechanism;
the first ventilation layer (1) is separated from the medicine storage layer (2) through a ventilation plate (1a) full of ventilation holes, the medicine storage layer (2) is separated from the equipment layer (3) through a partition plate (2a), the equipment layer (3) is separated from the strong corrosion medicine storage layer (4) through a ventilation plate (3a) full of ventilation holes, the strong corrosion medicine storage layer (4) is separated from the second ventilation layer (5) through a partition plate (4a), the lowest layer plate of the second ventilation layer (5) is a bottom plate (5a), the bottom plate (5a) is also used as a cabinet body bottom plate, a first ventilation mechanism communicated with the medicine storage layer (2) is installed in the first ventilation layer (1), a second ventilation mechanism communicated with the second ventilation layer (5) and the strong corrosion medicine storage layer (4) in sequence is installed in the equipment layer (3), and the first ventilation mechanism is linked with the second ventilation mechanism, the first ventilation mechanism comprises an air outlet pipe (1b) which is arranged at the top end of the first ventilation layer (1) and vertically extends upwards, a motor fixing frame (1c) is arranged in the air outlet pipe (1b), a motor (1d) with an output end vertically arranged downwards is fixedly installed on the motor fixing frame (1c), a turbofan (1e) with an output end vertically arranged downwards is fixedly installed on an output shaft of the motor (1d), and a rotating shaft of the turbofan (1e) is vertically arranged;
the second ventilating mechanism comprises a turbine (3b), a turbine chamber (3c), an air outlet pipeline (3d) and a venturi (3e), a linkage rod (1f) which vertically penetrates through the medicine storage layer (2) downwards and is in transmission connection with the turbine (3b) is installed on a rotating shaft of the turbofan (1e), the linkage rod (1f) is positioned in the middle of the double-layer partition plate (2b), the turbine chamber (3c) is installed on the outer side of the turbine (3b), the rotating shaft of the turbine (3b) and the turbofan (1e) are coaxially arranged, an air outlet of the turbine chamber (3c) is vertically arranged downwards, an air inlet of the turbine chamber (3c) is horizontally arranged towards the outer side of the cabinet body, an air outlet of the turbine chamber (3c) is provided with an air outlet pipeline (3d) which extends downwards and sequentially penetrates through the strong corrosion medicine storage layer (4) and the second ventilating layer (5) and is communicated with outdoor air, the middle end of the air outlet pipeline (3d) is provided with a venturi (3e), the negative pressure end of the venturi (3e) is provided with a branch pipe (3e1) extending into the highly corrosive medicine storage layer (4), and the air outlet pipeline (3d), the venturi (3e) and the branch pipe (3e1) are all made of inert materials.
2. The laboratory safe locker of claim 1, wherein: the medicine storage layer (2) comprises a double-layer middle partition plate (2b) vertically arranged in the middle of the medicine storage layer (2), the medicine storage layer (2) is divided into a left medicine storage cabinet and a right medicine storage cabinet (2c) by the double-layer middle partition plate (2b), a plurality of parallel sliding grooves (2c1) are formed in the inner wall of each medicine storage cabinet (2c) and the inner wall of the double-layer middle partition plate (2b), a medicine placing frame (2d) is slidably arranged on each sliding groove (2c1), an air supplementing opening (2c2) communicated with indoor air is formed in each medicine storage cabinet (2c), a cabinet door (2e) is arranged on the outer side of each medicine storage cabinet (2c), and a handle (2e1) is arranged on each cabinet door (2 e); a back plate close to a wall in a medicine storage cabinet (2c) is provided with a wall surface mounting mechanism (2f), the wall surface mounting mechanism (2f) comprises a plurality of expansion bolt mounting slotted holes (2f1) penetrating through the back plate of a cabinet body, the outer side of each expansion bolt mounting slotted hole (2f1) is provided with a sealing sleeve (2f2) horizontally extending towards the interior of the cabinet body, an internal thread is arranged in each sealing sleeve (2f2), a sealing column is mounted on each sealing sleeve (2f2) and comprises a mounting column (2f4) and a sealing cover (2f5), each mounting column (2f4) is a hollow cylinder, an external thread is arranged on the outer side of each mounting column (2f4), each mounting column (2f4) is mounted in each sealing sleeve (2f2) and is in threaded connection with each sealing sleeve (2f2), each sealing cover (2f5) is arranged on one side of each mounting column (2f4) and covers each sealing sleeve (2f2), a sealing ring (2f3) is arranged between the sealing sleeve (2f2) and the sealing cover (2f 5).
3. The laboratory safe locker of claim 2 wherein: a guide plate mounting column (2f6) horizontally extending towards the interior of the cabinet body is arranged on one side, away from the sealing sleeve (2f2), of the sealing cover (2f5), external threads are arranged on the guide plate mounting column (2f6), a guide plate (2c3) is further arranged in the medicine storage cabinet (2c), and the guide plate (2c3) is fixedly mounted on the guide plate mounting column (2f 6);
the guide plate (2c3) vertically extends upwards from the lowest sliding groove (2c1) to the uppermost sliding groove (2c1), then inclines upwards and extends towards the direction of the cabinet door (2e) to abut against the top plate of the medicine storage cabinet (2c), the side edge of the guide plate (2c3) abuts against the side wall of the medicine storage cabinet (2c), and the air supplementing opening (2c2) is arranged at the top end of the medicine storage cabinet (2 c).
4. The laboratory safe locker of claim 2 wherein: the medicine placing rack (2d) comprises a bearing plate (2d1) and a protection plate (2d2), wherein the bearing plate (2d1) is slidably mounted in the sliding groove (2c1), and the protection plate (2d2) vertically extends upwards from the periphery of the bearing plate (2d 1).
5. The laboratory safe locker of claim 1, wherein: the strong corrosion medicine storage layer (4) comprises a double-layer middle partition plate (4b) vertically arranged in the middle of the strong corrosion medicine storage layer (4), the double-layer middle partition plate (4b) divides the strong corrosion medicine storage layer (4) into a left strong corrosion medicine storage cabinet and a right strong corrosion medicine storage cabinet (4c), the bottom end of the strong corrosion medicine storage cabinet (4c) is provided with a negative pressure chamber (4d) communicated with a branch pipe (3e1), a strong corrosion medicine storage cabinet (4e) arranged above the negative pressure chamber (4d) is installed in the strong corrosion medicine storage cabinet (4c), the bottom plate of the strong corrosion medicine storage cabinet (4e) is fully provided with vent holes communicated with the negative pressure chamber (4d), and the negative pressure chamber (4d) and the strong corrosion medicine storage cabinet (4e) are made of inert materials.
6. The laboratory safe locker of claim 5 wherein: the side surface of the negative pressure chamber (4d) is provided with a vent hole, the branch pipe (3e1) is arranged in the vent hole, the top surface of the negative pressure chamber (4d) is provided with a bearing grid plate (4d1), and the special strong corrosion medicine cabinet (4e) can be slidably arranged on the bearing grid plate (4d 1).
7. The laboratory safe locker of claim 1, wherein: still be equipped with in air-out pipeline (3d) and purify absorbing device (6), purify absorbing device (6) and include:
the shell (6a) is of a barrel-shaped structure, a first opening (6a1) and a second opening (6a2) are respectively formed in the upper end and the lower end of the shell (6a), and the lower end of the shell (6a) is fixedly arranged on the inner wall of the air outlet pipeline (3 d);
two ends of the variable-volume air bag (6b) are respectively fixedly connected to the bottom wall and the inner side wall of the shell (6a), the variable-volume air bag and the shell (6a) enclose a variable-space cavity (6b1), and the bottom of the cavity (6b1) is provided with a vent hole (6b 2);
the chemical substance absorption tube (6c) is fixedly arranged at the upper end in the shell (6a) and is hermetically connected with the first opening (6a1) through a sealing baffle (6c1), the side wall and the bottom of the chemical substance absorption tube (6c) are hollow, and an absorption inner core (6d) is arranged in the chemical substance absorption tube;
the absorption core (6d) is internally provided with a filtering layer (6d1), a drying layer (6d2) and a chemical impurity removal layer (6d3) in sequence from the side wall of the chemical substance absorption tube (6c), the upper part of the absorption core (6d) is provided with a nano adsorption layer (6d4), and the nano adsorption layer (6d4) is arranged at the upper ends of the filtering layer (6d1), the drying layer (6d2) and the chemical impurity removal layer (6d 3);
a protective cover (6e) which is in turn connected and covered on the upper end of the chemical substance absorption tube (6c) through the threads of the connecting sleeve (6e3) and the locking ring (6e4), the locking ring (6e4) is screwed to the inner wall of the chemical absorption pipe (6c), the upper end surface of the locking ring (6e4) is fixedly connected with the lower end surface of the connecting sleeve (6e3) through threads, the upper end surface of the connecting sleeve (6e3) is in threaded connection with the lower end surface of the protective cover (6e), the side wall of the connecting sleeve (6e3) is also provided with a plurality of through holes, the through holes and the chemical substance absorption tube (6c) jointly form an air flow channel (6e1), the air arranged in the chemical substance absorption tube (6c) flows out through the air flow channel (6e1), and a circular groove for placing a supporting ball (6e2) is also arranged between the upper end face of the locking ring (6e4) and the lower end face of the protective cover (6 e).
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| CN201910798252.6A CN110523442B (en) | 2019-08-27 | 2019-08-27 | Laboratory safety locker |
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| CN201910798252.6A CN110523442B (en) | 2019-08-27 | 2019-08-27 | Laboratory safety locker |
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| CN110523442B true CN110523442B (en) | 2021-08-31 |
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