CN113083382A - Biological safety cabinet and disassembly and assembly method thereof - Google Patents
Biological safety cabinet and disassembly and assembly method thereof Download PDFInfo
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- CN113083382A CN113083382A CN202110459853.1A CN202110459853A CN113083382A CN 113083382 A CN113083382 A CN 113083382A CN 202110459853 A CN202110459853 A CN 202110459853A CN 113083382 A CN113083382 A CN 113083382A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims 2
- 238000013022 venting Methods 0.000 claims 1
- 239000011521 glass Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000002458 infectious effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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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
- B01L1/04—Dust-free rooms or enclosures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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Abstract
The invention provides a biological safety cabinet and a disassembly and assembly method, and relates to the technical field of biological safety cabinets. The biological safety cabinet comprises a cabinet body, a working box body, an air inlet efficient filter, an air inlet box body with an opening at the bottom and a fixing clamp, wherein the working box body is arranged in the cabinet body, and the front side and the top of the working box body are both provided with openings; the air inlet high-efficiency filter is suitable for being arranged at the top of the working box body; the air inlet box body is provided with an air inlet fan and is suitable for being hinged with the cabinet body through a second connecting mechanism, the bottom of the air inlet box body is enabled to be abutted against or separated from the top of the air inlet high-efficiency filter by rotating the air inlet box body, the second connecting mechanism is detachably connected with the cabinet body, and the air inlet box body and the air inlet high-efficiency filter are suitable for being taken out from the upper part of the front opening; the fixing clip is suitable for pressing and sealing the bottom of the air inlet box body and the top of the air inlet high-efficiency filter. The quick assembly and disassembly of the air inlet box body and the air inlet high-efficiency filter are realized.
Description
Technical Field
The invention relates to the technical field of biological safety cabinets, in particular to a biological safety cabinet and a disassembling and assembling method.
Background
The biosafety cabinet is designed for protecting the operator, the laboratory environment and the experimental materials from being exposed to infectious aerosols and splashes which may be generated in the operation process when operating infectious experimental materials such as primary cultures, strains of bacteria and viruses and diagnostic specimens. Therefore, the biosafety cabinet has high requirements on filtration, and the high-efficiency filter in the biosafety cabinet needs to be replaced after each experiment is carried out in the biosafety cabinet. The standards in YY 0569-plus 2011 biosafety cabinet indicate that fan/motor maintenance and high efficiency filter disassembly and assembly and replacement should be performed from the front of the safety cabinet, but the conventional biosafety cabinet is difficult to be realized from the front of the safety cabinet when the motor and the high efficiency filter are disassembled and assembled, and the disassembly and assembly efficiency is low.
Disclosure of Invention
The invention aims to solve the problems that the existing biological safety cabinet is difficult to realize from the front part of the safety cabinet when a motor and a high-efficiency filter are disassembled and assembled and has low disassembly and assembly efficiency to a certain extent.
In order to solve the above problems, the present invention provides a biosafety cabinet, comprising:
the front side of the cabinet body is provided with a front opening;
the front door mechanism is arranged at the front opening and comprises an upper door cover, and the upper door cover is arranged at the upper part of the front opening and is detachably connected with the cabinet body;
the air exhaust mechanism is arranged at the top in the cabinet body;
the working box body is arranged in the cabinet body, and the front side and the top of the working box body are both opened;
the air inlet high-efficiency filter is suitable for being arranged at the top of the working box body;
the air inlet box body is provided with an opening at the bottom and is provided with an air inlet fan, the air inlet box body is suitable for being hinged with the cabinet body through a second connecting mechanism, and the bottom of the air inlet box body is abutted against or separated from the top of the air inlet high-efficiency filter by rotating the air inlet box body, wherein the second connecting mechanism is detachably connected with the cabinet body, and the air inlet box body and the air inlet high-efficiency filter are suitable for being taken out from the upper part of the front opening; and
and the fixing clamp is suitable for compressing and sealing the bottom of the air inlet box body and the top of the air inlet high-efficiency filter.
Furthermore, the front side bottom of air inlet box is provided with a plurality of engaging lugs, the fixing clip includes the fixing clip body and is located the connection piece of fixing clip body bottom, the top of fixing clip body is suitable for the knot on the engaging lug, the connection piece be suitable for through the screw with cabinet body coupling, first rectangular hole has been seted up to the connection piece, the screw be suitable for relatively first rectangular hole removes.
Furthermore, two second connecting plates are arranged on the inner side of the rear wall of the cabinet body, the second connecting plates are provided with notches, and the inner sides of the left wall and the right wall of the cabinet body are both provided with upper positioning holes and lower positioning holes;
the second connecting mechanism comprises two connecting strips, the two connecting strips are respectively connected with the left side and the right side of the air inlet box body, the rear end of each connecting strip is provided with a movable pin, the movable pins are suitable for being arranged in the notches, the front ends of the connecting strips are provided with fixing bolts, and the front ends of the connecting strips are suitable for being wound around the central axes of the movable pins to rotate so that the fixing bolts are connected in the upper positioning holes or the lower positioning holes.
Furthermore, a second long hole is formed in the front end of the connecting strip, the length direction of the second long hole is perpendicular to the length direction of the connecting strip, and the fixing bolt is suitable for moving along the length direction of the second long hole.
Further, the air exit has been seted up to the roof of the cabinet body, exhaust mechanism includes the box of airing exhaust of the high efficiency filter of airing exhaust and the uncovered setting in top, install the fan of airing exhaust on the box of airing exhaust, the box of airing exhaust be suitable for through first coupling mechanism with cabinet body coupling, the box of airing exhaust be suitable for through first coupling mechanism with the high efficiency filter of airing exhaust compresses tightly in air exit department, wherein, first coupling mechanism with the cabinet body can be dismantled the connection, the intake box with be provided with the interval between the box of airing exhaust.
Furthermore, two first connecting plates are arranged on the inner top wall of the cabinet body, a first flanging is arranged on the bottom edge of each first connecting plate, and a first threaded hole is formed in each first flanging;
the top of the exhaust box body is provided with a second flanging, and the second flanging is provided with a second through hole;
the first connecting mechanism comprises a pressing rod, a support block is arranged at a position, close to the top end, of the pressing rod, the pressing rod is suitable for penetrating through the second through hole and then being in threaded connection with the first threaded hole, the support block is suitable for lifting the second flanging to abut against the first flanging, when the second flanging abuts against the first flanging, the top of the air exhaust high-efficiency filter is tightly pressed at the air outlet, and the top of the air exhaust box body and the bottom of the air exhaust high-efficiency filter are tightly pressed and sealed.
Further, the second through hole comprises a large-diameter hole and a small-diameter hole, the large-diameter hole is communicated with the small-diameter hole, the support block is suitable for penetrating through the large-diameter hole, the second flanging is suitable for being sleeved above the support block from the bottom end of the pressing rod through the large-diameter hole, and the support block is suitable for being supported at the small-diameter hole.
Furthermore, the front end and the rear end of each first connecting plate are respectively provided with a third flanging, and the air exhaust high-efficiency filter is suitable for being arranged among the third flanging.
In addition, the invention also provides a disassembly and assembly method of the biological safety cabinet, which is based on the biological safety cabinet and comprises the following steps:
removing the upper door to expose an upper portion of the front opening;
the fixing clamp is detached, the air inlet box body is lifted upwards, and the air inlet box body is taken out from the upper part of the front opening;
and taking out the air exhaust mechanism from the upper part of the front opening.
Further, the disassembly and assembly method of the biological safety cabinet further comprises the following steps:
the air exhaust mechanism is arranged at the top in the cabinet body from the upper part of the front opening;
the air inlet high-efficiency filter is arranged at the top of the working box body;
the air inlet box body is hinged with the cabinet body through a second connecting mechanism, and the air inlet box body is rotated downwards until the air inlet box body is abutted against the air inlet high-efficiency filter;
the bottom of the air inlet box body and the top of the air inlet high-efficiency filter are compressed and sealed through the fixing clamp.
Compared with the prior art, the biological safety cabinet and the disassembly and assembly method provided by the invention have the following beneficial effects:
the front opening of the front part of the cabinet body can enable a worker to insert hands into the working box body in the cabinet body for an experiment, the air inlet fan sucks the air entering the cabinet body into the air inlet efficient filter, the air is filtered by the filter layer in the air inlet efficient filter and then enters the working box body downwards, so that a pollution-free working environment in the working box body is ensured, when the air inlet box body and the air inlet efficient filter are disassembled, the upper door cover can be disassembled to expose the upper part of the front opening, then the fixing clamp is disassembled from the position where the air inlet box body is tightly pressed and sealed between the air inlet box body and the air inlet efficient filter, then the air inlet box body is separated from the air inlet efficient filter by lifting the air inlet box body upwards, then the air inlet box body and the second connecting mechanism can be taken out from the cabinet body, then the air inlet efficient filter can be taken out, and the air inlet fan and the air, satisfy the relevant standard among YY 0569 supple with money 2011 "biological safety cabinet", compress tightly the seal structure simple between intake box and the high-efficient filter of air inlet simultaneously, the dismouting is efficient.
Drawings
FIG. 1 is a schematic block diagram of a biosafety cabinet according to an embodiment of the invention;
FIG. 2 is a first schematic structural view of the interior of the cabinet of the embodiment of the present invention;
FIG. 3 is a second schematic structural view of the interior of the cabinet according to the embodiment of the present invention;
fig. 4 is a third schematic structural view of the interior of the cabinet body according to the embodiment of the invention;
fig. 5 is a schematic structural view of the interior of the cabinet of the embodiment of the present invention;
FIG. 6 is an enlarged view taken at A in FIG. 4;
FIG. 7 is an enlarged view at B in FIG. 4;
FIG. 8 is a schematic structure of a connecting strip of an embodiment of the present invention;
FIG. 9 is a schematic structural view of the connection of the exhaust air high efficiency filter and the exhaust air box of the embodiment of the present invention;
FIG. 10 is a partial schematic view of the attachment of the exhaust plenum and exhaust box of an embodiment of the present invention;
FIG. 11 is a schematic structural view of an exhaust box of an embodiment of the present invention;
fig. 12 is a schematic view of the flow of air inside the cabinet according to an embodiment of the present invention.
Description of the labeling:
1-cabinet body, 11-air outlet, 111-grating plate, 12-first connecting plate, 121-first flanging, 123-third flanging, 13-lower positioning hole, 14-upper positioning hole, 15-air exhaust fan, 16-fixing clip, 161-fixing clip body, 162-connecting plate, 1621-first long hole, 1622-screw, 17-air intake fan, 18-second connecting plate, 181-notch, 19-leg mechanism, 2-front door mechanism, 21-upper door cover, 22-display device, 23-glass door, 3-work box body, 311-first work air outlet, 312-second work air outlet, 4-air exhaust high-efficiency filter, 5-air exhaust box body, 52-second flanging, 521-second through hole, 6-air inlet high-efficiency filter, 7-air inlet box body, 71-connecting lug, 8-first connecting mechanism, 81-pressure rod, 82-supporting block, 9-second connecting mechanism, 91-connecting strip, 911-second long hole, 92-movable pin and 93-fixed bolt.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Also, the X-axis in the drawings indicates the front-rear position, and the positive direction of the X-axis (i.e., the arrow direction of the X-axis) indicates the front, and the negative direction of the X-axis (i.e., the direction opposite to the positive direction of the X-axis) indicates the rear; in the drawings, the Y-axis represents the lateral, i.e., left-right, position, and the positive direction of the Y-axis (i.e., the arrow direction of the Y-axis) represents the left, and the negative direction of the Y-axis (i.e., the direction opposite to the positive direction of the Y-axis) represents the right; in the drawings, the Z-axis represents the vertical, i.e., up-down, position, and the positive direction of the Z-axis (i.e., the arrow of the Z-axis points) represents up, and the negative direction of the Z-axis (i.e., the direction opposite to the positive direction of the Z-axis) represents down; it should also be noted that the foregoing X-axis, Y-axis, and Z-axis representations are merely intended to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must be oriented, constructed or operated in a particular orientation and therefore should not be considered limiting of the invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Referring to fig. 1 and 2, the biosafety cabinet according to the embodiment of the invention comprises a cabinet body 1, a front door mechanism 2 exhaust mechanism, a work box body 3, an air inlet high-efficiency filter 6, an air inlet box body 7 arranged with an opening at the bottom and a fixing clip 16. The front side of the cabinet body 1 is provided with a front opening; the front door mechanism 2 is arranged at the front opening, the front door mechanism 2 comprises an upper door cover 21, and the upper door cover 21 is arranged at the upper part of the front opening and is detachably connected with the cabinet body 1; the air exhaust mechanism is arranged at the top in the cabinet body; the working box body 3 is arranged in the cabinet body 1, and the front side and the top of the working box body 3 are both opened; the air inlet high-efficiency filter 6 is suitable for being arranged at the top of the working box body 3; an air inlet fan 17 is arranged on the air inlet box body 7, the air inlet box body 7 is suitable for being hinged with the cabinet body 1 through a second connecting mechanism 9, the bottom of the air inlet box body 7 is enabled to be abutted against or separated from the top of the air inlet high-efficiency filter 6 by rotating the air inlet box body 7, the second connecting mechanism 9 is detachably connected with the cabinet body 1, and the air inlet box body 7 and the air inlet high-efficiency filter 6 are suitable for being taken out from the upper part of the front opening; the fixing clip 16 is suitable for pressing and sealing the bottom of the air inlet box body 7 and the top of the air inlet high-efficiency filter 6.
Here, the front opening of the front part of the cabinet body 1 can enable a worker to insert hands into the working box body 3 in the cabinet body 1 for experiment, the air inlet fan 17 sucks the air entering the interior of the cabinet body 1 into the air inlet high efficiency filter 6, then the air is filtered by the filter layer in the air inlet high efficiency filter 6 and then enters the working box body 3 downwards, so as to ensure the pollution-free working environment in the working box body 3, when the air inlet box body 7 and the air inlet high efficiency filter 6 are disassembled, the upper door cover 21 can be disassembled to expose the upper part of the front opening, then the fixing clamp 16 is disassembled from the compression sealing position between the air inlet box body 7 and the air inlet high efficiency filter 6, then the air inlet box body 7 is separated from the air inlet high efficiency filter 6 by lifting the air inlet box body 7 upwards, then the air inlet box body 7 and the second connecting mechanism 9 can be taken out from the cabinet body 1, guaranteed that air inlet fan 17 and air inlet high efficiency filter 6 on the air inlet box 7 all take out from the anterior front opening department of the cabinet body 1, satisfied relevant standard in YY 0569 supplementarily 2011 biological safety cabinet, the compressing tightly seal structure between air inlet box 7 and the air inlet high efficiency filter 6 is simple simultaneously, and the dismouting is efficient.
It can be understood that, in order to achieve the experiment operation of extending the hand into the work box 3 from the bottom of the front opening and the display effect of the related information inside the cabinet 1, the front door mechanism 2 may further include a glass door 23 and a display device 22, wherein the upper door cover 21, the display device 22 and the glass door 23 are suitable for covering and closing the front opening, the display device 22 may be connected with the cabinet 1 or the upper door cover 21, wherein the glass door 23 is slidably connected with the cabinet 1, the glass door 23 may slide along the front side edges of the left wall and the right wall of the cabinet 1 to open the bottom of the front opening, and then the worker may extend the hand into the work box 3 from the bottom of the front opening.
It can be understood that the biosafety cabinet can further comprise a leg mechanism 19 located at the bottom of the cabinet body 1, the biosafety cabinet can be conveniently moved through the leg mechanism 19, and the working box body 3 with the height is convenient for a worker to perform experiment operation by supporting the cabinet body 1 at a certain height from the ground.
It can be understood that the air inlet high efficiency filter 6 is a rectangular tubular structure, the middle part of the air inlet high efficiency filter is provided with a filter layer, four edges of the top end and the bottom end of the air inlet high efficiency filter are provided with deformable sealing structures, such as sealing sponge or sealing strips, the bottom end of the air inlet box body 7 is open and can be provided with flanging structures, and the sealing sponge or the sealing strips are compressed and sealed through the flanging structures of the bottom end of the air inlet box body 7.
Referring to fig. 3 to 7, optionally, a plurality of connecting lugs 71 are disposed at the bottom end of the front side of the air inlet box body 7, the fixing clip 16 includes a fixing clip body 161 and a connecting piece 162 located at the bottom end of the fixing clip body 161, the top end of the fixing clip body 161 is adapted to be buckled on the connecting lugs 71, the connecting piece 162 is adapted to be connected with the cabinet body 1 through a screw 1622, a first long hole 1621 is opened on the connecting piece 162, and the screw 1622 is adapted to move relative to the first long hole 1621.
Here, the screw 1622 is fixed at the rear position of the cabinet 1, and the fixing clip 16 can be ensured to move toward the air inlet box 7 by the first elongated hole, so as to ensure that the top end of the fixing clip body 161 can be fastened on the connecting lug 71, wherein the screw 1622 can be a screw.
Referring to fig. 4, 6 and 7, optionally, two second connecting plates 18 are arranged on the inner side of the rear wall of the cabinet body 1, the second connecting plates 18 are provided with notches 181, and the inner sides of the left wall and the right wall of the cabinet body 1 are provided with an upper positioning hole 14 and a lower positioning hole 13; the second connecting mechanism 9 includes two connecting strips 91, the two connecting strips 91 are respectively connected with the left side and the right side of the air inlet box body 7, the rear end of the connecting strip 91 is provided with a movable pin 92, the movable pin 92 is suitable for being placed in the notch 181, the front end of the connecting strip 91 is provided with a fixing bolt 93, and the front end of the connecting strip 91 is suitable for rotating around the central axis of the movable pin 92 so that the fixing bolt 93 is connected in the upper positioning hole 14 or the lower positioning hole 13.
Here, after the movable pin 92 at the rear end of the connecting strip 91 is placed in the notch 181, by lifting the front end of the air inlet box body 7, the fixing bolt 93 at the front end of the connecting strip 91 can be connected to the upper positioning hole 14 or the lower positioning hole 13, when the fixing bolt 93 is connected to the lower positioning hole 13, the bottom of the air inlet box body 7 abuts against the top of the air inlet high efficiency filter 6, when the fixing bolt 93 is connected to the upper positioning hole 14, the bottom of the air inlet box body 7 is separated from the top of the air inlet high efficiency filter 6, because the movable pin 92 is installed in the notch 181, the second connecting mechanism 9 can be detachably connected to the cabinet body 1, and further, the detachable connection of the air inlet box body 7 to the cabinet body 1 can be.
Referring to fig. 8, optionally, a second elongated hole 911 is formed at the front end of the connecting bar 91, the length direction of the second elongated hole 911 is perpendicular to the length direction of the connecting bar 91, and the fixing bolt 93 is adapted to move along the length direction of the second elongated hole 911.
Here, through setting up second rectangular hole 911, give the air inlet box 7 certain distance of drunkenness downwards, guarantee that fixing clip 16 can compress tightly air inlet box 7 downwards, it can be understood that, when its bottom and the top butt of air inlet high efficiency filter 6 under air inlet box 7 self gravity, the fixing bolt 93 of connecting at lower locating hole 13 still has certain distance apart from the top of second rectangular hole 911, fixing clip 16 makes fixing bolt 93 be in the top of second rectangular hole 911 after compressing tightly air inlet box 7 downwards.
Referring to fig. 2, fig. 3 and fig. 9, an air outlet 11 is provided on the top wall of the cabinet 1, the air exhaust mechanism includes an air exhaust high efficiency filter 4 and an air exhaust box 5 with an open top, an air exhaust fan 15 is installed on the air exhaust box 5, the air exhaust box 5 is suitable for being connected with the cabinet 1 through a first connecting mechanism 8, the air exhaust box 5 is suitable for compressing the air exhaust high efficiency filter 4 at the air outlet 11 through the first connecting mechanism 8, wherein the first connecting mechanism 8 is detachably connected with the cabinet 1, and an interval is provided between the air intake box 7 and the air exhaust box 5.
Here, a space for the upward rotation of the inlet box 7 is provided by providing a space between the inlet box 7 and the outlet box 5, and the exhaust box 5 is moved upward by providing a space for the upward movement of the outlet box 5 to press the exhaust hepa filter 4 against the exhaust port 11 through the first connecting mechanism 8.
It can be understood that the top end and the bottom end of the exhaust high-efficiency filter 4 are also provided with sealing structures, as the intake high-efficiency filter 6.
Referring to fig. 1, optionally, a grill plate 111 is further disposed at the air outlet 11 to provide a certain protection effect for the inner side air exhaust high efficiency filter 4, and at the same time, after the air exhaust high efficiency filter 4, the air exhaust box 5, the air intake box 7 and the air intake high efficiency filter 6 are disassembled, the grill plate 111 can also provide a certain protection for the interior of the cabinet 1.
Referring to fig. 10 and 11, optionally, two first connecting plates 12 are arranged on the inner top wall of the cabinet body 1, a first flanging 121 is arranged at the bottom edge of the first connecting plate 12, and the first flanging 121 is provided with a first threaded hole; the top of the exhaust box body 5 is provided with a second flanging 52, and the second flanging 52 is provided with a second through hole 521; the first connecting mechanism 8 comprises a pressing rod 81, a support block 82 is arranged at a position, close to the top end, of the pressing rod 81, the pressing rod 81 is suitable for being in threaded connection with the first threaded hole after penetrating through the second through hole 521, the support block 82 is suitable for lifting the second flanging 52 to abut against the first flanging 121, when the second flanging 52 abuts against the first flanging 121, the top of the air exhaust high-efficiency filter 4 is pressed at the air outlet 11, and the top of the air exhaust box body 5 is pressed and sealed with the bottom of the air exhaust high-efficiency filter 4.
Here, when the exhaust box 5 and the high efficiency exhaust filter 4 are installed, they may be: firstly, the second flanging 52 at the top of the exhaust box body 5 is sleeved into the pressure rod 81 from the top end of the pressure rod 81 until the second flanging 52 is supported by the supporting block 82, so that the exhaust box body 5 is supported by the pressure rod 81, then the exhaust high-efficiency filter 4 is placed at the top of the exhaust box body 5, then the exhaust high-efficiency filter 4 enters between the two first connecting plates 12, then the top of the pressure rod 81 is in threaded connection with the first threaded hole of the first flanging 121, then the pressure rod 81 is screwed to ascend until the exhaust box body 5 presses the exhaust high-efficiency filter 4 to the lower side of the exhaust port 11, and meanwhile, the top of the exhaust box body 5 is also in compression sealing with the bottom of the exhaust high-efficiency filter 4.
Referring to fig. 10 and 11, alternatively, the second through hole 521 includes a large diameter hole and a small diameter hole, the large diameter hole is communicated with the small diameter hole, the support block 82 is suitable for passing through the large diameter hole, the second flange 52 is suitable for being sleeved on the support block 82 from the bottom end of the pressing rod 81 through the large diameter hole, and the support block 82 is suitable for being supported at the small diameter hole, namely, the support block 82 cannot pass through the small diameter hole.
Here, by setting the second through hole 521 as a large-diameter hole and a small-diameter hole which are communicated with each other, after the top of the pressing rod 81 is screwed into the first threaded hole of the first flange 121, the second flange 52 of the exhaust box 5 is sleeved on the pressing rod 81, that is, after the top of the pressing rod 81 is screwed into the first threaded hole of the first flange 121, the second flange 52 is sleeved into the pressing rod 81 from the bottom end of the pressing rod 81 from the large-diameter hole until the second flange 52 moves to the upper side of the supporting block 82, and then the exhaust box 5 is moved horizontally, so that the small-diameter hole and the pressing rod 81 are matched together, and the supporting block 82 supports the exhaust box 5.
Referring to fig. 10, optionally, each of the first connecting plates 12 is provided at front and rear ends thereof with third beads 123, and the high-efficiency exhausting filter 4 is adapted to be interposed between the plurality of third beads 123.
The third flange 123 passing therethrough provides a guide function for the upward and downward movement of the high-efficiency exhaust filter 4.
Referring to fig. 5 and 12, it can be understood that, taking the two-stage biosafety cabinet as an example, in order to meet the requirement of gas flow in the cabinet body 1, the bottom wall of the working box body 3 is spaced from the bottom wall of the cabinet body 1, the rear wall of the working box body 3 is spaced from the rear wall of the cabinet body 1, the air intake high-efficiency filter 6 and the air intake box body 7 are spaced from the rear wall of the cabinet body 1, and meanwhile, in order to meet the requirement of gas circulation in the working box body 3, the front end of the bottom wall of the working box body 3 is provided with a plurality of first working air outlet zones composed of a plurality of first working air outlet holes 311, and the rear end of the bottom wall of the working box body 3 is provided with a second working air outlet zone composed of a plurality of second working air outlet holes 312, so that after the glass door 23 slides upwards to open the front bottom, the gas flow in.
In addition, a method for disassembling and assembling a biosafety cabinet according to another embodiment of the present invention is based on the biosafety cabinet, and includes:
the upper door cover 21 is removed to expose the upper portion of the front opening;
the fixing clip 16 is removed, the fixing bolt 93 in the biological safety cabinet is removed from the lower positioning hole 13 in the biological safety cabinet, the air inlet box body 7 is lifted upwards, and the air inlet box body 7 is taken out from the upper part of the front opening;
taking out the air inlet high-efficiency filter 6 from the upper part of the front opening;
the air exhausting box body 5 in the biological safety cabinet and the air exhausting high-efficiency filter 4 in the biological safety cabinet are taken out from the upper part of the front opening by screwing the pressure lever 81 in the biological safety cabinet to enable the air exhausting box body 5 in the biological safety cabinet to descend along with the pressure lever 81 until the pressure lever 81 is separated from the first flanging 121 of the first connecting plate 12 in the biological safety cabinet.
Further, the disassembly and assembly method of the biological safety cabinet further comprises the following steps:
the top end of the pressure lever 81 is connected in a first threaded hole of the first flanging 121 in a threaded manner;
placing the high-efficiency exhaust filter 4 at the top of the exhaust box body 5, and enabling the second flanging 52 of the exhaust box body 5 to be sleeved in the pressure rod 81 and enabling the second flanging 52 to be supported on the support block 82 of the pressure rod;
screwing the pressure lever 81 to enable the pressure lever 81 to rise until the air exhaust box body 5 tightly presses the air exhaust high-efficiency filter 4 at an air exhaust port 11 of the biological safety cabinet;
placing the movable pin 92 in the biological safety cabinet in the notch 181 of the second connecting plate 18 in the biological safety cabinet, and installing the fixed bolt 92 in the upper positioning hole 14 in the biological safety cabinet;
placing the air inlet high-efficiency filter 6 at the top of the working box body 3, removing the fixing bolt 92 from the upper positioning hole 14, rotating the air inlet box body 7 downwards and connecting the fixing bolt 92 in the lower positioning hole 13;
the bottom of the air inlet box body 7 is tightly pressed and sealed with the top of the air inlet high-efficiency filter 6 through a fixing clip 16.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. A biosafety cabinet, comprising:
the refrigerator comprises a cabinet body (1), wherein a front opening is formed in the front side of the cabinet body (1);
the front door mechanism (2) is arranged at the front opening, the front door mechanism (2) comprises an upper door cover (21), and the upper door cover (21) is arranged at the upper part of the front opening and is detachably connected with the cabinet body (1);
the air exhaust mechanism is arranged at the top in the cabinet body (1);
the working box body (3) is arranged in the cabinet body (1), and the front side and the top of the working box body (3) are both arranged in an open manner;
the air inlet high-efficiency filter (6) is suitable for being arranged at the top of the working box body (3);
the air inlet box body (7) is arranged with an opening at the bottom of the air inlet box body (7), an air inlet fan (17) is installed on the air inlet box body (7), the air inlet box body (7) is suitable for being hinged with the cabinet body (1) through a second connecting mechanism (9), the bottom of the air inlet box body (7) is abutted to or separated from the top of the air inlet high-efficiency filter (6) by rotating the air inlet box body (7), the second connecting mechanism (9) is detachably connected with the cabinet body (1), and the air inlet box body (7) and the air inlet high-efficiency filter (6) are suitable for being taken out from the upper part of the front opening; and
the fixing clamp (16) is suitable for pressing and sealing the bottom of the air inlet box body (7) and the top of the air inlet high-efficiency filter (6).
2. The biological safety cabinet according to claim 1, characterized in that a plurality of connecting lugs (71) are arranged at the bottom end of the front side of the air inlet box body (7), the fixing clip (16) comprises a fixing clip body (161) and a connecting piece (162) located at the bottom end of the fixing clip body (161), the top end of the fixing clip body (161) is suitable for being buckled on the connecting lugs (71), the connecting piece (162) is suitable for being connected with the cabinet body (1) through a threaded piece (1622), a first strip hole (1621) is formed in the connecting piece (162), and the threaded piece (1622) is suitable for moving relative to the first strip hole (1621).
3. The biosafety cabinet according to claim 1, characterized in that two second connecting plates (18) are arranged on the inner side of the rear wall of the cabinet body (1), the second connecting plates (18) are provided with notches (181), and the inner sides of the left wall and the right wall of the cabinet body (1) are provided with an upper positioning hole (14) and a lower positioning hole (13);
second coupling mechanism (9) include two connecting strip (91), two connecting strip (91) respectively with the left side and the right side of air inlet box (7) are connected, the rear end of connecting strip (91) is provided with activity round pin (92), activity round pin (92) are suitable for and place in breach (181), the front end of connecting strip (91) is provided with fixing bolt (93), the front end of connecting strip (91) is suitable for around the axis of activity round pin (92) rotates so that fixing bolt (93) are connected go up locating hole (14) or in lower locating hole (13).
4. The biosafety cabinet according to claim 3, characterized in that a second elongated hole (911) is formed in the front end of the connecting bar (91), the length direction of the second elongated hole (911) is perpendicular to the length direction of the connecting bar (91), and the fixing bolt (93) is suitable for moving along the length direction of the second elongated hole (911).
5. The biosafety cabinet according to any one of claims 1 to 4, characterized in that an air outlet (11) is formed in the top wall of the cabinet body (1), the air exhaust mechanism comprises an air exhaust high-efficiency filter (4) and an air exhaust box body (5) with an open top, an air exhaust fan (15) is installed on the air exhaust box body (5), the air exhaust box body (5) is suitable for being connected with the cabinet body (1) through a first connecting mechanism (8), the air exhaust box body (5) is suitable for pressing the air exhaust high-efficiency filter (4) at the air outlet (11) through the first connecting mechanism (8), wherein the first connecting mechanism (8) is detachably connected with the cabinet body (1), and a space is formed between the air intake box body (7) and the air exhaust box body (5).
6. The biological safety cabinet according to claim 5, characterized in that two first connecting plates (12) are arranged on the inner top wall of the cabinet body (1), a first flanging (121) is arranged on the bottom edge of the first connecting plates (12), and a first threaded hole is formed in the first flanging (121);
a second flanging (52) is arranged at the top of the exhaust box body (5), and a second through hole (521) is formed in the second flanging (52);
the first connecting mechanism (8) comprises a pressing rod (81), a support block (82) is arranged at a position, close to the top end, of the pressing rod (81), the pressing rod (81) is suitable for penetrating through the second through hole (521) and then is in threaded connection with the first threaded hole, the support block (82) is suitable for lifting the second flanging (52) and the first flanging (121) in butt joint, when the second flanging (52) and the first flanging (121) are in butt joint, the top of the air exhaust high-efficiency filter (4) is pressed at the air exhaust opening (11), and the top of the air exhaust box body (5) and the bottom of the air exhaust high-efficiency filter (4) are pressed and sealed.
7. The biosafety cabinet according to claim 6, characterized in that the second through hole (521) comprises a large diameter hole and a small diameter hole, the large diameter hole is communicated with the small diameter hole, the tray (82) is suitable for passing through the large diameter hole, the second flange (52) is suitable for being sleeved on the tray (82) from the bottom end of the pressure rod (81) through the large diameter hole, and the tray (82) is suitable for being supported at the small diameter hole.
8. The biosafety cabinet according to claim 6, characterized in that each of said first connecting plates (12) is provided, at the front and rear ends thereof, with a third flap (123), said venting high-efficiency filter (4) being adapted to be interposed between a plurality of said third flaps (123).
9. A method for assembling and disassembling a biological safety cabinet based on any one of claims 1 to 8, comprising:
removing the upper door cover (21) to expose the upper portion of the front opening;
the fixing clip (16) is removed, the air inlet box body (7) is lifted upwards, and the air inlet box body (7) is taken out from the upper part of the front opening;
and taking out the air exhaust mechanism from the upper part of the front opening.
10. The method of claim 9, further comprising:
the air exhaust mechanism is arranged at the top in the cabinet body (1) from the upper part of the front opening;
the air inlet high-efficiency filter (6) is arranged at the top of the working box body (3);
the air inlet box body (7) is hinged with the cabinet body (1) through a second connecting mechanism (9), and the air inlet box body (7) is rotated downwards until being abutted against the air inlet high-efficiency filter (6);
the bottom of the air inlet box body (7) and the top of the air inlet high-efficiency filter (6) are compressed and sealed through the fixing clamp (16).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110072407 | 2021-01-20 | ||
| CN2021100724075 | 2021-01-20 |
Publications (1)
| Publication Number | Publication Date |
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| CN113083382A true CN113083382A (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110459853.1A Pending CN113083382A (en) | 2021-01-20 | 2021-04-27 | Biological safety cabinet and disassembly and assembly method thereof |
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| Country | Link |
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| CN (1) | CN113083382A (en) |
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| CN116060142A (en) * | 2023-02-10 | 2023-05-05 | 江苏拓米洛高端装备股份有限公司 | Inner box and environmental test box |
| CN116786176A (en) * | 2023-03-21 | 2023-09-22 | 青岛海尔生物医疗股份有限公司 | Biological safety cabinet |
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