CN213254486U

CN213254486U - Biological safety cabinet

Info

Publication number: CN213254486U
Application number: CN202021546679.1U
Authority: CN
Inventors: 刘飞飞; 孔维益; 贾洪涛; 赵逢安; 柳海泉
Original assignee: Qingdao Haier Biomedical Co Ltd
Current assignee: Qingdao Haier Biomedical Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-05-25
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a biological safety cabinet, including: the cabinet body comprises a base; the hand placing frame is fixedly connected with the base, and a gap is formed between the hand placing frame and the base; the water receiving tray is arranged on the base and used for receiving the dripped waste liquid; put the hand frame including: the connecting component is used for connecting the hand placing frame and the base; the supporting component is connected with the connecting component, and a first shielding part is arranged on the supporting component and shields the gap position and guides the waste liquid dropping above the gap position to the water receiving disc; and the second shielding part is arranged on the water receiving tray, is positioned between the connecting part and the first shielding part and is used for preventing waste liquid splashed into the water receiving tray from flowing back to the gap. Through the utility model provides a among the prior art biosafety cabinet put and have the crack between hand rack and the box, lead to easy storage waste liquid, the waste liquid is excessive and causes the problem that the security that leads to of infection is low easily.

Description

Biological safety cabinet

Technical Field

The utility model belongs to the object is equipment field for the disinfection, concretely relates to improvement of biological safety cabinet structure.

Background

The biological safety cabinet is designed for protecting the operator, the laboratory environment and experimental materials when operating infectious experimental materials such as primary cultures, strains of bacteria and viruses, diagnostic specimens and the like, so as to avoid exposure to infectious aerosols and splashes possibly generated in the operation process, is widely applied to the fields of medical sanitation, disease prevention and control, food sanitation, biological pharmacy, environmental monitoring, various biological laboratories and the like, and is an important basis for guaranteeing biological safety and environmental safety.

The biological safety cabinet is provided with a hand rest frame, and the function is that when a user operates the biological safety cabinet, two arms can be put on the biological safety cabinet, so that the fatigue during the operation is relieved. The hand rest frame is generally fixed on the outer side of the box body through screws, and the hand rest frame is usually made of stainless steel. The hand rest has the disadvantage that the hand rest is arranged outside the box body and has a gap in the vertical direction with the box body, and waste liquid generated when a user operates the hand rest, such as waste liquid on a workbench, can drip into the gap. Firstly, the crack is difficult for washing and disinfecting, secondly the waste liquid is too much, can follow the crack excessive, drips on user's protective clothing or the floor, and the user has the potential risk of being infected by the waste liquid, and the security is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses there is the crack between hand rack and the box to among the prior art biosafety cabinet, leads to easy storage waste liquid, and the waste liquid is excessive and causes the low problem of security that leads to of infection easily, the utility model provides a new biosafety cabinet sets up first occlusion part and second occlusion part on hand rack, shelters from and to the waste liquid water conservancy diversion to the clearance of putting between hand rack and the box, has avoided the waste liquid excessive problem that causes the infection to produce, has improved the security that biosafety cabinet used.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

a biosafety cabinet comprising:

the cabinet body comprises a base;

the hand placing frame is fixedly connected with the outer side of the base, and a gap is formed between the hand placing frame and the base;

the water receiving tray is arranged on the base and used for receiving waste liquid dripped from the hand placing frame;

put hand rack including:

the connecting component is used for connecting the hand placing frame and the base;

the supporting component is connected with the connecting component, a first shielding part is arranged on the supporting component, and the first shielding part shields the gap position and guides the dripped waste liquid into the water receiving tray;

and the second shielding part is arranged on the water receiving tray, is positioned between the connecting part and the first shielding part and is used for being matched with the first shielding part to prevent waste liquid splashed to the water receiving tray from flowing back to the gap.

Furthermore, the supporting component further comprises a supporting part, a flow guiding part and a connecting part, wherein the supporting part, the flow guiding part and the connecting part are sequentially connected, and the connecting part is connected with the first shielding part.

Furthermore, the first shielding part is formed by extending from the end part of the connecting part to the water receiving tray side.

Furthermore, the water conservancy diversion portion is for constituting the first slope section of supporting component, connecting portion are for constituting the vertical section of supporting component, first shielding portion is for constituting the second slope section of supporting component, water conservancy diversion portion and first shielding portion all face water collector side slope setting.

Furthermore, the end part of the first shielding part abuts against and is attached to the top surface of the water pan or a space is reserved between the end part of the first shielding part and the top surface of the water pan.

Furthermore, the connecting part is attached to the connecting part and is welded and fixed with the connecting part, a clamping part is formed between the first shielding part and the connecting part, and the second shielding part is clamped in the clamping part.

Further, the support component and the connecting component are integrally formed or separately formed.

Furthermore, the second shielding part is a turned edge which extends upwards from the bottom wall of the water pan to form.

Furthermore, the water receiving tray comprises a workbench, the workbench is arranged above the water receiving tray, an insertion space is formed between the workbench and the connecting component, and the first shielding part is inserted into the insertion space.

A biosafety cabinet comprising:

the cabinet body comprises a base;

the water receiving tray is arranged on the base and used for receiving waste liquid dripped on the hand placing frame, and comprises a top surface positioned at the top and a water receiving tray inner side wall connected with the top surface;

put hand rack including:

the supporting component is connected with the connecting component, a first shielding part is arranged on the supporting component, the first shielding part shields the gap position and guides waste liquid into the water receiving tray, and the first shielding part extends to the inner side wall of the water receiving tray from the supporting component.

Compared with the prior art, the utility model discloses an advantage is with positive effect:

the utility model provides a hand rest of biosafety cabinet, which comprises a support component and a connecting component, wherein the support component is provided with a first shielding part which can shield the gap position between the hand rest and the cabinet body and can guide the waste liquid dripped above the support component to the water receiving tray, thereby avoiding the waste liquid dripping into the gap between the cabinet body and the hand rest;

and simultaneously, the utility model provides a biosafety cabinet still corresponds be provided with the second occlusion part, the second occlusion part is used for cooperating with first occlusion part, the setting is between adapting unit and first occlusion part, be used for preventing to drip the waste liquid backward flow on the top surface of water collector, with it block in the meeting water collector, cooperation through first occlusion part and second occlusion part, guarantee that the waste liquid of drippage can not flow into the base and put in the clearance between the hand rack, and then avoided because of the waste liquid drips in the clearance excessive or drip the problem that the user that leads to on the floor is infected, whole biosafety cabinet's security has been improved.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a biosafety cabinet according to a first embodiment of the present invention;

fig. 2 is a front view of a biosafety cabinet according to a first embodiment of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is a partial enlarged view of FIG. 3 at B;

fig. 5 is a schematic structural diagram of a biosafety cabinet according to a second embodiment of the present invention;

fig. 6 is a partially enlarged view of fig. 5 at C.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The first embodiment is as follows:

the utility model provides an embodiment of biological safety cabinet, it is shown with reference to fig. 1-6, it includes:

the cabinet 100 has a cavity formed inside the cabinet 100, and the cabinet 100 includes a base 110. Specifically, the cabinet 100 of the present embodiment further includes a plurality of sidewalls connected to the base 110 and a glass door 120 disposed at a front position of the biosafety cabinet, wherein the glass door 120 can be stretched up and down to open or close the cavity inside the cabinet 100.

When the biological safety cabinet is in a normally placed use state, the corresponding hand placing frame 200 is positioned at the front side of the biological safety cabinet, the glass door 120 is positioned on the hand placing frame 200 and corresponds to the position of the hand placing frame 200 in the direction, the glass door 120 can be pulled upwards to be opened or pulled downwards to be closed, and when the glass door 120 is pulled downwards to the lower limit position, the bottom of the glass door is correspondingly contacted with the top surface 320 of the hand placing frame 200.

Put hand rack 200, the connection is fixed on base 110 put hand rack 200 with be formed with the clearance between the base 110, the user can place both hands and rest on putting hand rack 200 after the experiment has been operated, and the liquid-transfering gun is held in the user's hand, and the waste liquid among the liquid-transfering gun can the downflow drip to be located and put in the clearance between hand rack 200 and base 110, flows to the floor along the clearance or flow into in the clearance and spill over from the clearance in, causes the user to be infected.

Water collector 300 sets up on the base 110, preferably, water collector 300 fixed connection is on base 110, and water collector 300 mainly used receives the waste liquid that drips, and water collector 300 structure is when setting up, including the diapire, connect the inside wall of diapire position department all around and be located the top surface 320 of water collector 300 top position department, the inside wall that top surface 320 corresponds and position department all around is connected, and the inside wall all around can set the slope lateral wall for realizing better guide effect.

The hand placing frame 200 comprises:

a connecting member 210 connecting the hand rest 200 and the base 110;

and a support member 220 connected to the connection member 210, wherein the support member 220 is provided with a first shielding portion 221, and the first shielding portion 221 shields the gap position and guides the waste liquid dropping above the gap position to the water tray 300.

The liquid waste that drips in this embodiment has two kinds of sources, one kind is for the user to hold the liquid-transfering gun and rest on putting hand rack 200, from putting the liquid waste that drips of hand rack 200 position department, another kind of condition is the liquid waste that drips on the workstation 400.

Through setting up first shielding part 221 in this embodiment, shelter from the base 110 and put the clearance between the hand rack 200, no matter from workstation 400 drippage waste liquid still from putting hand rack 200 position drippage waste liquid all can drip on first shielding part 221 when dripping like this, through the effect of sheltering from of first shielding part 221, make the waste liquid can not enter into inside the clearance, and first shielding part 221 can also further carry out the water conservancy diversion with the waste liquid that drips above it, on water collector 300 with its water conservancy diversion, it is specific, first shielding part 221 in this embodiment can be with on the top surface 320 of waste liquid water collector 300 with the waste liquid water conservancy diversion, finally make the waste liquid can not enter into inside the clearance, guaranteed that the user can not produce the infection.

Meanwhile, in order to prevent the waste liquid guided to the top surface 320 of the water-receiving tray 300 from flowing back into the gap along the top surface 320 of the water-receiving tray 300, in this embodiment, a second shielding portion 310 is correspondingly disposed on the water-receiving tray 300, and is used for cooperating with the first shielding portion 221 to prevent the waste liquid splashed to the water-receiving tray 300 from flowing back into the gap.

Specifically, the second blocking portion 310 in this embodiment is a folded edge extending upward from the top surface 320 of the water tray 300, and is disposed between the first blocking portion 221 and the connecting member 210, i.e., behind the first blocking portion 221.

When waste liquid dropping from the workbench 400 or the hand rest 200 falls to the position of the first shielding portion 221, the waste liquid is guided to the position of the top surface 320 of the water receiving tray 300 through the first shielding portion 221, at this time, the waste liquid dropping on the top surface 320 of the water receiving tray 300 may flow to the gap side along the top surface 320 of the water receiving tray 300, and when the waste liquid flows to the second shielding portion 310 at the edge position of the water receiving tray 300, namely, the turning edge position, the waste liquid is blocked through the turning edge, so that the waste liquid flows back to the water receiving tray 300, and cannot flow into the gap along the edge of the top surface 320 of the water receiving tray 300.

In this embodiment, by arranging the first shielding portion 221 and the second shielding portion 310 to be matched with each other, it is ensured that the waste liquid dripping from the outside cannot flow into the gap between the hand placing frame 200 and the base 110, and further the situation that the user is infected due to the fact that waste liquid drops on the floor or waste liquid overflowing from the gap is stored in the gap is avoided, and the use safety of the biosafety cabinet is improved.

In some preferred embodiments, the connecting member 210 and the supporting member 220 in this embodiment are separate molded parts, and in particular, when the connecting member 210 and the supporting member 220 are fixed, the connecting member 210 and the supporting member 220 may be welded and fixed, and optionally, a connecting plate may be used, and when the connecting member is assembled, the connecting plate is disposed to fit the outer sidewall of the base 110 and is fixedly connected to the base 110 by screwing or bolting. Of course, the supporting member 220 and the connecting member 210 in this embodiment may also be an integrally formed member, and are not limited in this respect.

When disposed, the connection plate is disposed along a length direction of the base 110. Meanwhile, a plurality of connecting pieces for fastening the connecting plate and the base 110 are correspondingly arranged along the length direction of the base 110, so that the firmness of connecting and fixing the connecting pieces and the base 110 is ensured.

A preferred embodiment of the supporting member 220 in the present embodiment is: the supporting member 220 further includes a supporting portion 222, a flow guiding portion 223, and a connecting portion 224, the supporting portion 222, the flow guiding portion 223, and the connecting portion 224 are sequentially connected, and the connecting portion 224 is connected to the first shielding portion 221.

Specifically, the support portion 222 in this embodiment is for supporting a user, and when it is disposed, it may be an L-shaped plate or a plate with rounded corners, and is not limited in this respect.

A guide part 223 for guiding the flow of the waste liquid, connected to the support part 222, for guiding the flow of the waste liquid at the position of the support part 222, preferably, the guide part is a first inclined section constituting the support member 220, and is inclined toward the water receiving tray 300.

And the connecting part 224 is connected with the flow guide part 223 and used for realizing connection and fixation with the connecting part 210, and when the connecting part 224 is arranged, the connecting part 224 is a vertical section forming the supporting part 220, is arranged to be attached to the inner side wall of the connecting part 210 and is welded and fixed with the connecting part 210 so as to realize connection between the supporting part 220 and the connecting part 210.

The first shielding portion 221 is connected to an end of the connection portion 224, extends from the end of the connection portion 224 to the drain pan 300, is a second inclined segment constituting the support member 220, is inclined toward the drain pan 300, and shields the gap position.

The inclined arrangement can realize the diversion function, and the waste liquid can flow to the side of the water receiving tray 300 because the inclined arrangement extends to the side of the water receiving tray 300.

In a specific arrangement, an end of the first blocking portion 221 may be abutted against the top surface 320 of the water-receiving tray 300, or may be arranged to have a distance from the top surface 320 of the water-receiving tray 300.

When the end of the first shielding portion 221 abuts against and is attached to the top surface 320 of the water-receiving tray 300, the first shielding portion 221 and the top surface 320 of the water-receiving tray 300 can be attached to each other, and backflow of waste liquid dropping on the top surface 320 of the water-receiving tray 300 is avoided as much as possible.

Of course, the first shielding portion 221 may not be attached to the top surface 320 of the water collector 300, but may be disposed to keep a certain distance from the top surface 320 of the water collector 300, so that the returned waste liquid is mainly blocked by the second shielding portion 310.

Specifically, in the present embodiment, a clamping portion 230 is formed between the first shielding portion 221 and the connecting member 210, and the second shielding portion 310 is clamped in the clamping portion 230. Preferably, the engaging portion 230 is an engaging opening.

The second shielding part 310 is folded upwards and inserted into the clamping opening to realize clamping assembly between the water pan 300 and the hand rack 200.

Because the hand placing frame 200 in this embodiment is connected to the water pan 300 by the first blocking portion 221 and the connecting member 210, the blocking portion 230 of the hand placing frame 200 is blocked to the second blocking portion 310 during installation, and the hand placing frame 200 is pulled out upward during detachment, so that the blocking portion 230 and the second blocking portion 310 are separated from each other, which is convenient for installation and detachment.

The biosafety cabinet in this embodiment further includes a workbench 400, the workbench 400 is disposed above the water pan 300, an insertion space is formed between the workbench 400 and the connecting part 210, and the first shielding part 221 is located in the insertion space.

Workstation 400 is established in the top of water collector 300, when it carries out the operation, the waste liquid of its top can drip and enter into water collector 300, the waste liquid that drips on workstation 400 does not directly get into water collector 300 but when outwards splashing, can splash to cartridge spatial position department, at this moment, establish first shielding portion 221 in the cartridge space and shelter from the clearance in this embodiment, then can make the waste liquid can drip on first shielding portion 221, flow into water collector 300 along first shielding portion 221, it is inside that the waste liquid that has guaranteed to drip on workstation 400 also can flow into water collector 300.

Example two:

the utility model provides an embodiment of biological safety cabinet, refer to fig. 5-6 and show, including:

Put hand rack 200, the connection is fixed on base 110 put hand rack 200 with be formed with the clearance between the base 110, the user can place both hands after the experiment of having operated and rest on putting hand rack 200, hold the pipette in the user's hand, and the waste liquid among the pipette can the downflow drip to be located and put in the clearance between hand rack 200 and the base 110, flow to the floor or flow into in the clearance and spill over from the clearance along the clearance, make water collector 300, set up on the base 110 for receive the dripped waste liquid, water collector 300 including be located the top surface 320 at top and with the water collector inside wall 330 that top surface 320 is connected.

The hand placing frame 200 comprises:

a connecting member 210 connecting the hand rest 200 and the base 110;

and a support member 220 connected to the connection member 210, wherein the support member 220 is provided with a first shielding portion 221 for shielding the gap and guiding the waste water into the water receiving tray 300, and the first shielding portion 221 extends from the support member 220 to the inner side wall 330 of the water receiving tray.

Specifically, the supporting member 220 in this embodiment includes a supporting portion 222, a flow guiding portion 223, a connecting portion 224 and a first shielding portion 221, and the supporting portion 222, the flow guiding portion 223, the connecting portion 224 and the first shielding portion 221 are integrally formed.

The supporting portion 222 may also be an L-shaped supporting section constituting the supporting member 220, the guiding portion 223 may be a guiding surface disposed obliquely, and the connecting portion 224 is disposed corresponding to the connecting member 210 and connected to the connecting member 210.

The first shielding part 221 includes a shielding guide segment 2211, and a first flow guiding segment 2212 and a second flow guiding segment 2213 connected to the shielding guide segment 2211, wherein the first flow guiding segment 2212 is connected to an end of the shielding guide segment 2211, and the second flow guiding segment 2213 is connected to an end of the first flow guiding segment 2212.

First water conservancy diversion section 2212 and second water conservancy diversion section 2213 can be third slope section, the fourth slope section of slope setting, and second water conservancy diversion section 2213 is located the inside of water collector at least partially to ensure that lead to the waste liquid completely in water collector 300, can not outwards spill over.

Preferably, the first diversion section 2212 arranged in this embodiment is attached to the top surface 320 of the water-receiving tray 300, and the second diversion section 2213 is arranged on the inner side wall of the water-receiving tray 300 correspondingly, so as to achieve a better diversion effect.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. A biosafety cabinet comprising:

the cabinet body comprises a base;

the hand placing frame is fixedly connected with the base, and a gap is formed between the hand placing frame and the base;

the water receiving tray is arranged on the base and used for receiving the dripped waste liquid;

its characterized in that, put the hand frame including:

the supporting component is connected with the connecting component, and a first shielding part is arranged on the supporting component and shields the gap position and guides the waste liquid dropping above the first shielding part to the water receiving tray;

and the second shielding part is arranged on the water receiving tray, is positioned between the connecting part and the first shielding part and is used for preventing waste liquid splashed into the water receiving tray from flowing back to the gap.

2. The biosafety cabinet according to claim 1, wherein the supporting member further comprises a supporting portion, a flow guiding portion and a connecting portion, the supporting portion, the flow guiding portion and the connecting portion are sequentially connected, and the connecting portion is connected with the first shielding portion.

3. The biosafety cabinet according to claim 2, wherein the first shielding portion is formed by extending from an end of the connecting portion to the water pan side.

4. The biosafety cabinet according to claim 2, wherein the flow guide portion is a first inclined section constituting the support member, the connecting portion is a vertical section constituting the support member, the first shielding portion is a second inclined section constituting the support member, and the flow guide portion and the first shielding portion are both inclined toward the water pan side.

5. The biosafety cabinet according to claim 4, wherein the end of the first shielding portion abuts against the top surface of the water pan or is spaced from the top surface of the water pan.

6. The biosafety cabinet according to claim 1, wherein the connecting portion is attached to the connecting member and welded to the connecting member, a clamping portion is formed between the first shielding portion and the connecting member, and the second shielding portion is clamped in the clamping portion.

7. The biosafety cabinet according to claim 1, wherein the support member and the connecting member are integrally formed or separately formed.

8. The biosafety cabinet according to claim 7, wherein the second shielding portion is a folded edge extending upward from the bottom wall of the water pan.

9. The biosafety cabinet according to claim 1, further comprising a workbench disposed above the water pan, wherein an insertion space is formed between the workbench and the connecting member, and the first shielding portion is inserted into the insertion space.

10. A biosafety cabinet comprising:

the cabinet body comprises a base;

the water pan is arranged on the base and used for receiving the dripped waste liquid, and comprises a top surface positioned at the top and an inner side wall of the water pan connected with the top surface;

its characterized in that, put the hand frame including: