CN211612743U

CN211612743U - Biological safety cabinet

Info

Publication number: CN211612743U
Application number: CN201922393953.XU
Authority: CN
Inventors: 王玉朗
Original assignee: Beijing Xinji Yongkang Biotechnology Co ltd
Current assignee: Beijing Xinji Yongkang Biotechnology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-02
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to a biosafety cabinet relates to biological laboratory paraphernalia's technical field, including the cabinet body, the internal operation chamber that is provided with of cabinet has seted up the circular shape through-hole on the bottom surface in the operation intracavity, and the rigid coupling has fixed pipe on the bottom surface in operation chamber, and the through-hole is located the fixed pipe, and the central line of fixed pipe and the central line of through-hole are located same straight line, wear to be equipped with the ascending garbage collection bucket of opening in the fixed pipe, garbage collection bucket and fixed pipe threaded connection. Through setting up the garbage collection bucket, can collect the consumptive material in the biological safety cabinet temporarily.

Description

Biological safety cabinet

Technical Field

The utility model belongs to the technical field of biological laboratory equipment's technique and specifically relates to a biological safety cabinet is related to.

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.

Referring to fig. 1 and 2, a biosafety cabinet, including the cabinet body 1, the rigid coupling has four bracing pieces 2 that support the cabinet body 1 on the ground on the lower surface of the cabinet body 1, the cabinet body 1 is provided with operation chamber 11, set up the rectangular mouth of taking 111 on the lateral wall of the cabinet body 1 length direction, the last border of the mouth of taking 111 articulates there is a door frame 12 that is used for will taking the mouth 111 confined, the rigid coupling has transparent glass plate 121 on the inner peripheral surface of door frame 12, two circular shape handle aperture 1211 has been seted up on the glass plate 121, equal rigid coupling has isolation gloves 1212 on the inner peripheral surface of two circular ports.

A filter chamber 17 is arranged above the operation chamber 11, the filter chamber 17 is communicated with the operation chamber 11, an air inlet pipe 13 penetrates through the side wall of the filter chamber 17, one end of the air inlet pipe 13 is communicated with the outside, the other end of the air inlet pipe 13 is positioned in the filter chamber 17, a first filter 171 and a second filter 172 are fixedly connected in the filter chamber 17, the first filter 171 is positioned below the second filter 172, and the air inlet pipe 13 is positioned between the first filter 171 and the second filter 172.

A connecting plate 14 is fixedly connected between two side walls in the width direction in the operation cavity 11, an air duct 15 is arranged between the connecting plate 14 and the side wall far away from the taking port 111 in the operation cavity 11, a gap is arranged between the connecting plate 14 and the bottom surface of the operation cavity 11, a closing plate 141 is fixedly connected to the upper surface of the connecting plate 14, one side wall in the length direction of the closing plate 141 is fixedly connected with the connecting plate 14, and the other side wall in the length direction of the closing plate 141 is fixedly connected with the side wall far away from the taking port 111 in the operation cavity 11. One end of the air inlet pipe 13 positioned in the filter chamber 17 is fixedly connected with the upper surface of the closing plate 141, and the air inlet pipe 13 is communicated with the air duct 15. An air inlet fan 131 is fixedly connected in the air inlet pipe 13. An exhaust fan 16 is arranged at the top of the filter cavity 17 above the second filter 172.

The above prior art solutions have the following drawbacks: when carrying out biological assay, can use a large amount of consumptive materials, for example, pipette head, disposable syringe, transfering loop, inoculation needle, coating glass pearl etc. of pipette, these consumptive materials need take out after using to avoid taking place cross contamination, however, frequent process of taking out, reduction work efficiency that can to a great extent, current processing mode is that the inside of biological safety cabinet places interim collection container, for example beaker for collect the consumptive material after using. However, in this method, if a small-capacity collection container is used, the height of the collection container is low, the inoculating loop and the inoculating needle are inclined in all directions in the collection container, and the collection container needs to be replaced frequently; if a large-capacity collecting container is used, the distance between the top of the collecting container and the top of the safety cabinet is small, and an operator can place the used consumables in the collecting container only by lifting the consumables to a certain height, so that time and labor are wasted; and the collecting container can occupy the space in the operation table, so that the experiment space is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a biological safety cabinet, through setting up the garbage collection bucket, can collect the consumptive material in the biological safety cabinet temporarily.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a biosafety cabinet, includes the cabinet body, the internal operation chamber that is provided with of cabinet, has seted up the circular shape through-hole on the bottom surface in the operation intracavity, and the rigid coupling has fixed pipe on the bottom surface in operation chamber, and the through-hole is located the fixed intraductal, and the central line of fixed pipe and the central line of through-hole are located same straight line, wears to be equipped with the ascending garbage collection bucket of opening in the fixed pipe, garbage collection bucket and fixed pipe threaded connection.

Through adopting above-mentioned technical scheme, the waste material that the in-process that carries out biological assay produced can directly throw the garbage collection bucket in, makes things convenient for the collection of waste material, after the biological assay has done, unscrews the garbage collection bucket from fixed intraductal, clears up the back with the rubbish in the garbage collection bucket, installs the garbage collection bucket in the fixed pipe again.

The present invention may be further configured in a preferred embodiment as: the upper surface rigid coupling of fixed pipe has annular closing plate, and the central line of closing plate and fixed pipe are located same straight line, and the garbage collection bucket is at the in-process of upwards rotation, and the upper surface of garbage collection bucket can contradict with the lower surface of closing plate.

Through adopting above-mentioned technical scheme, when carrying out biological assay like this, just increased the leakproofness between garbage collection bucket and the fixed pipe.

The present invention may be further configured in a preferred embodiment as: the upper surface rigid coupling of garbage collection bucket has the sealed pad of annular with garbage collection bucket upper surface adaptation.

Through adopting above-mentioned technical scheme, the leakproofness between garbage collection bucket and the closing plate has been increased to the annular seal pad.

The present invention may be further configured in a preferred embodiment as: the fixed pipe is provided with a cover body used for sealing the fixed pipe, and the cover body is of a barrel-shaped structure with a round blind groove formed in the lower end face.

Through adopting above-mentioned technical scheme, when carrying out biological assay, open the lid through the pull rod after producing the waste material, then drop into the garbage collection bucket with the waste material in, then keep apart garbage collection bucket and operation chamber with the lid. The cross contamination between the waste in the waste collecting barrel and the equipment in the operation cavity is avoided.

The present invention may be further configured in a preferred embodiment as: and a circular sealing gasket is fixedly connected to the bottom surface of the circular blind hole on the cover body.

Through adopting above-mentioned technical scheme, the leakproofness between lid and the closing plate has been increased to circular sealed pad.

The present invention may be further configured in a preferred embodiment as: the rigid coupling has the connecting rod on the terminal surface of garbage collection bucket bottom, and the connecting rod is perpendicular with the terminal surface of garbage collection bucket bottom, and the one end rigid coupling that the garbage collection bucket was kept away from to the connecting rod has the circular shape hand wheel, and the hand wheel is parallel with the terminal surface of garbage collection bucket bottom.

Through adopting above-mentioned technical scheme, when dismantling the garbage collection bucket, the staff can hold the hand wheel and beset the spin-on garbage collection bucket, has made things convenient for the dismantlement of garbage collection bucket.

The present invention may be further configured in a preferred embodiment as: the outer peripheral face of the waste collecting barrel is fixedly connected with an annular baffle, and when the upper surface of an annular sealing gasket on the waste collecting barrel is abutted against the lower surface of the sealing plate, the upper surface of the baffle is just in contact with the lower surface of the cabinet body.

Through adopting above-mentioned technical scheme, can confirm through the state of observing the baffle that the upper surface of annular seal pad contradicts with the lower surface of closing plate. Avoid when installation garbage collection bucket, because the unable condition of observing in the fixed tube, cause the annular seal pad not to contradict with the lower surface of closing plate.

The present invention may be further configured in a preferred embodiment as: the upper surface of the cover plate is provided with a rectangular mounting groove, and a stress plate is fixedly connected between two side walls of the mounting groove at opposite positions.

By adopting the technical scheme, the stress points on the cover plate are increased due to the matching of the stress plate and the mounting groove, so that the cover plate can be screwed through the stress plate when a worker screws the cover plate, and the cover plate is more labor-saving and convenient.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the through hole and the waste collecting barrel, waste materials generated in the process of carrying out a biological experiment can be directly thrown into the waste collecting barrel, the waste materials are convenient to collect, after the biological experiment is finished, the waste collecting barrel is screwed off from the fixed pipe, and after garbage in the waste collecting barrel is cleaned, the waste collecting barrel is installed in the fixed pipe again;

2. through setting up closing plate, lid and apron, increased the leakproofness between garbage collection bucket and the closing plate.

Drawings

FIG. 1 is a schematic diagram of a prior art biosafety cabinet;

FIG. 2 is a schematic view of a prior art biological safety cabinet highlighting the internal structure thereof;

FIG. 3 is a schematic structural diagram of the biosafety cabinet in the embodiment;

FIG. 4 is a schematic view showing the internal structure of the biological safety cabinet in this embodiment;

FIG. 5 is a schematic view of the highlighted fixed tube structure in this embodiment;

FIG. 6 is a schematic view of a via structure shown in the embodiment;

FIG. 7 is a schematic view of the highlighted waste collection bucket configuration of this embodiment;

fig. 8 is a side sectional view of the cover in this embodiment.

In the figure, 1, a cabinet body; 11. an operating chamber; 111. taking the mouth; 112. a through hole; 12. a door frame; 121. a glass plate; 1211. an operation hole; 1212. an isolation glove; 13. an air inlet pipe; 131. an air inlet machine; 14. a connecting plate; 141. a closing plate; 15. an air duct; 16. an exhaust fan; 17. a filter chamber; 171. a first filter; 172. a second filter; 2. a support bar; 3. a fixed tube; 31. a sealing plate; 4. a waste collection barrel; 41. an annular seal; 42. a groove; 43. a baffle plate; 5. a cover body; 51. a circular blind hole; 511. a circular seal gasket; 52. a pull rod; 6. a connecting rod; 61. a hand wheel; 7. a cover plate; 71. mounting grooves; 72. a stress plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 3, fig. 4, for the utility model discloses a biological safety cabinet, including the cabinet body 1, the rigid coupling has four to support the cabinet body 1 in subaerial bracing piece 2 on the lower surface of the cabinet body 1, the cabinet body 1 is provided with operation chamber 11, set up the mouth 111 of taking of rectangle on the lateral wall of the 1 length direction of the cabinet body, the last border of the mouth 111 of taking articulates there is the door frame 12 that is used for taking the mouth 111 confined, the rigid coupling has transparent glass board 121 on the inner peripheral surface of door frame 12, two circular shape handle openings 1211 have been seted up on the glass board 121, equal rigid coupling has isolation gloves 1212 on the inner peripheral surface of two circular ports.

Referring to fig. 4 and 5, a connecting plate 14 is fixedly connected between two side walls in the width direction in the operation cavity 11, an air duct 15 is arranged between the connecting plate 14 and the side wall far away from the taking port 111 in the operation cavity 11, a gap is arranged between the connecting plate 14 and the bottom surface of the operation cavity 11, a closing plate 141 is fixedly connected to the upper surface of the connecting plate 14, one side wall in the length direction of the closing plate 141 is fixedly connected to the connecting plate 14, and the other side wall in the length direction of the closing plate 141 is fixedly connected to the side wall far away from the taking port 111 in the operation cavity 11. One end of the air inlet pipe 13 positioned in the filter chamber 17 is fixedly connected with the upper surface of the closing plate 141, and the air inlet pipe 13 is communicated with the air duct 15. An air inlet fan 131 is fixedly connected in the air inlet pipe 13. An exhaust fan 16 is arranged at the top of the filter cavity 17 above the second filter 172.

Referring to fig. 5 and 6, a circular through hole 112 is formed in the bottom surface of the operation chamber 11, a cylindrical fixing tube 3 is fixedly connected to the bottom surface of the operation chamber 11, and the through hole 112 is located in the fixing tube 3.

Referring to fig. 4, a cylindrical trash can 4 is inserted into the through hole 112, the trash can 4 is opened upward, and the outer circumferential surface of the trash can 4 is in threaded connection with the inner circumferential surface of the fixed pipe 3.

Waste material in the in-process that carries out biological assay produces can directly throw put into garbage collection bucket 4, makes things convenient for the collection of waste material, after the biological assay was done, unscrews garbage collection bucket 4 from fixed pipe 3 is internal, clears up the back with the rubbish in the garbage collection bucket 4, installs garbage collection bucket 4 in fixed pipe 3 again.

Referring to the other 5, the annular sealing plate 31 is fixedly connected to the upper surface of the fixed pipe 3, the outer peripheral surface of the sealing plate 31 is flush with the outer peripheral surface of the fixed pipe 3, the central line of the sealing plate 31 and the central line of the fixed pipe 3 are located on the same straight line, and the upper surface of the garbage collecting barrel 4 can be abutted against the lower surface of the sealing plate 31 in the upward rotating process of the garbage collecting barrel 4. Thus, the sealing performance between the waste collecting barrel 4 and the fixed pipe 3 is increased when the biological experiment is carried out.

Referring to fig. 7, an annular gasket 41 adapted to the upper surface of the trash can 4 is fixed to the upper surface of the trash can 4. The annular gasket 41 increases the seal between the waste collection barrel 4 and the sealing plate 31.

Referring to fig. 5 and 8, the fixed pipe 3 is provided with a cover 5 for closing the fixed pipe 3, and the cover 5 has a barrel-shaped structure with a circular blind hole 51 formed in a lower end surface. The lid 5 is slidably connected to the outer peripheral surface of the fixed pipe 3 and the outer peripheral surface of the seal plate 31. The upper surface of the cover plate 7 is fixedly connected with a semicircular pull rod 52 which is convenient for opening the cover body 5. In the case of performing a biological experiment, the lid 5 is opened by the pull rod 52 after the generation of waste, and then the waste is thrown into the waste collection tub 4, and then the waste collection tub 4 is isolated from the operation chamber 11 by the lid 5. Cross contamination of the waste material in the waste collection barrel 4 with equipment in the operating chamber 11 is avoided.

A circular sealing gasket 511 is fixedly connected to the bottom surface of the circular blind hole 51 on the cover body 5. The circular packing 511 increases the sealability between the lid body 5 and the sealing plate 31.

Referring to fig. 7, an annular groove 42 is formed in the edge of the inner circumferential surface of the top end of the waste collecting barrel 4, a circular cover plate 7 is arranged in the groove 42, and the outer circumferential surface of the cover plate 7 is in threaded connection with the side wall in the groove 42. If the waste material that produces in the biological safety cabinet has bacterium etc. when garbage collection bucket 4 need take out from fixed pipe 3, open lid 5, then twist apron 7 in waiting to recess 42, then close lid 5 on fixed pipe 3 from the new lid, twist off garbage collection bucket 4 from fixed pipe 3 and take garbage collection bucket 4 to the garbage collection department and collect the processing. The apron 7 can seal up garbage collection bucket 4, avoids garbage collection bucket 4 to take out the back as far as, and the waste material in the garbage collection bucket 4 produces the influence to external laboratory environment.

The rigid coupling has connecting rod 6 on the bottom terminal surface of garbage collection bucket 4, and connecting rod 6 is perpendicular with the terminal surface of 4 bottoms of garbage collection bucket, and the one end rigid coupling that garbage collection bucket 4 was kept away from to connecting rod 6 has circular shape hand wheel 61, and hand wheel 61 is parallel with the terminal surface of 4 bottoms of garbage collection bucket. When the garbage collection barrel 4 is disassembled, the worker can hold the hand wheel 61 to screw the garbage collection barrel 4, so that the disassembling of the garbage collection barrel 4 is facilitated.

An annular baffle 43 is fixedly connected to the outer peripheral surface of the waste collecting barrel 4, and when the upper surface of the annular sealing gasket 41 on the waste collecting barrel 4 is abutted against the lower surface of the sealing plate 31, the upper surface of the baffle 43 is just in contact with the lower surface of the cabinet body 1. It is possible to determine whether the upper surface of the annular packing 41 interferes with the lower surface of the seal plate 31 by observing the state of the baffle 43. The situation inside the fixed pipe 3 cannot be observed when the garbage can 4 is mounted, and the annular packing 41 does not abut against the lower surface of the sealing plate 31 is avoided.

The upper surface of the cover plate 7 is provided with a rectangular mounting groove 71, and a stress plate 72 is fixedly connected between two side walls of the mounting groove 71 at opposite positions. The cooperation of atress board 72 and mounting groove 71 has increased the stress point on the apron 7 for the staff will twist apron 7 when twisting apron 7, can twist apron 7 through atress board 72, more laborsaving convenience.

The implementation principle of the embodiment is as follows: after the process of carrying out biological assay produces the waste material, open lid 5, put into garbage collection bucket 4 with the waste material after finishing, then close lid 5 lid to fixed pipe 3 on, treat the experiment completion back, perhaps be the waste material in the garbage collection bucket 4 and fill with the back, open lid 5, in revolving the recess 42 on the garbage collection bucket 4 with apron 7, then close lid 5 lid to fixed pipe 3 on. Twist the hand wheel 61 and go up garbage collection bucket 4 and unscrew from cabinet body 1 through revolving, then take the garbage collection bucket 4 appointed garbage collection department and handle, handle after accomplishing with garbage collection bucket 4 install fixed pipe 3 again in can.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a biological safety cabinet, includes the cabinet body (1), is provided with operation chamber (11) in the cabinet body (1), its characterized in that: the circular through hole (112) is formed in the bottom surface in the operation cavity (11), the fixed pipe (3) is fixedly connected to the bottom surface of the operation cavity (11), the through hole (112) is located in the fixed pipe (3), the central line of the fixed pipe (3) and the central line of the through hole (112) are located on the same straight line, the waste collecting barrel (4) with an upward opening is arranged in the fixed pipe (3) in a penetrating mode, and the waste collecting barrel (4) is in threaded connection with the fixed pipe (3).

2. A biosafety cabinet according to claim 1, wherein: the upper surface rigid coupling of fixed pipe (3) has annular closing plate (31), and the central line of closing plate (31) and the central line of fixed pipe (3) are located same straight line, and garbage collection bucket (4) are at the in-process of upwards rotating, and the upper surface of garbage collection bucket (4) can contradict with the lower surface of closing plate (31).

3. A biosafety cabinet according to claim 1, wherein: the upper surface of the waste collecting barrel (4) is fixedly connected with an annular sealing gasket (41) matched with the upper surface of the waste collecting barrel (4).

4. A biosafety cabinet according to claim 1, wherein: the fixing pipe (3) is provided with a cover body (5) used for sealing the fixing pipe (3), and the cover body (5) is of a barrel-shaped structure with a round blind hole (51) formed in the lower end face.

5. A biosafety cabinet according to claim 4, wherein: and a circular sealing gasket (511) is fixedly connected to the bottom surface of the circular blind hole (51) on the cover body (5).

6. A biosafety cabinet according to claim 1, wherein: annular groove (42) have been seted up to the inner peripheral surface border at garbage collection bucket (4) top, be provided with in recess (42) with the apron (7) of recess (42) adaptation, the outer peripheral face of apron (7) and the lateral wall threaded connection in recess (42).

7. A biosafety cabinet according to claim 1, wherein: the rigid coupling has connecting rod (6) on the terminal surface of garbage collection bucket (4) bottom, and connecting rod (6) are perpendicular with the terminal surface of garbage collection bucket (4) bottom, and the one end rigid coupling that garbage collection bucket (4) were kept away from in connecting rod (6) has circular shape hand wheel (61), and hand wheel (61) are parallel with the terminal surface of garbage collection bucket (4) bottom.

8. A biosafety cabinet according to claim 2, wherein: an annular baffle (43) is fixedly connected to the outer peripheral surface of the waste collecting barrel (4), and when the upper surface of an annular sealing gasket (41) on the waste collecting barrel (4) is abutted against the lower surface of the sealing plate (31), the upper surface of the baffle (43) is just in contact with the lower surface of the cabinet body (1).

9. A biosafety cabinet according to claim 6, wherein: the upper surface of the cover plate (7) is provided with a rectangular mounting groove (71), and a stress plate (72) is fixedly connected between two side walls of the mounting groove (71) at opposite positions.