CN210434540U

CN210434540U - Air purification negative pressure safety device of biosafety cabinet

Info

Publication number: CN210434540U
Application number: CN201921133933.2U
Authority: CN
Inventors: 陈玉华; 李陶
Original assignee: Jiangsu Luyisheng Biotechnology Co ltd
Current assignee: Jiangsu Luyisheng Biotechnology Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-05-01
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a biosafety cabinet air purification negative pressure safety device, including biosafety cabinet body and coupling spring, the internally mounted of biosafety cabinet body has the support frame, and the middle part of support frame is provided with the plug to the top of plug is fixed with the base, the inside of base is provided with coupling spring, and the base passes through coupling spring and digging arm interconnect to the end fixing of digging arm has the grip block, pole in the up end of base is installed, and interior pole passes through reset spring and urceolus interconnect, the stopper is all installed on the avris of urceolus and the surface of digging arm, and passes through connecting rod interconnect between the stopper. This biological safety cabinet air purification negative pressure safety device can carry out the centre gripping to the experiment container and fix to can fix the experiment container of different specifications, thereby reduce the possibility that the experiment container emptys when the experiment, improve the success rate of experiment.

Description

Air purification negative pressure safety device of biosafety cabinet

Technical Field

The utility model relates to a biological safety cabinet technical field specifically is a biological safety cabinet air purification negative pressure safety device.

Background

The biosafety cabinet is in the research experiment, produces the air purification negative pressure safety device that can carry out safe processing during unknown chemical reaction, prevents that the harmful gas that produces in the experiment from directly spreading to the air in, causes the pollution to the air, because the particularity of experiment, so the experimenter need separate glass to operate through the rubber gloves of installation on the glass, bump the experiment container easily.

However, the existing biosafety cabinet has the following problems when in use:

1. in the experiment, because the experimenter takes the experiment container through the glass and the rubber gloves to operate, the phenomenon that the experiment container is inclined is easy to occur, thereby causing experiment errors and even experiment failure;

2. since the specifications of the test containers are different, the designated test container needs to be placed at a designated position when the test container is fixed, thereby wasting time and energy of the experimenter.

Aiming at the problems, innovative design is urgently needed on the basis of the original biosafety cabinet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a biological safety cabinet air purification negative pressure safety device to solve above-mentioned background art and propose when the experiment because the experimenter is separating glass and taking the experiment container through rubber gloves and operate, so the phenomenon that the experiment container emptys takes place easily, thereby result in experimental error or even experimental failure, because the specification of experiment container is different, so need put appointed experiment container in assigned position when fixed to the experiment container, thereby the problem of experimenter's time and energy has been wasted.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a biohazard safety equipment air purification negative pressure safety device, includes biohazard safety equipment body and coupling spring, the internally mounted of biohazard safety equipment body has the support frame, and the middle part of support frame is provided with the plug to the top of plug is fixed with the base, the inside of base is provided with coupling spring, and the base passes through coupling spring and digging arm interconnect to the end fixing of digging arm has the grip block, and the surface of grip block is provided with the cushion, pole in the up end of base is installed, and interior pole passes through reset spring and urceolus interconnect to the base is installed to the upper end of urceolus, the stopper is all installed on the avris of urceolus and the surface of digging arm, and passes through connecting rod interconnect between the stopper.

Preferably, the bottom of support frame sets up to the inclined structure, and is coaxial setting between support frame and the biological safety cabinet body to constitute between support frame and the plug and dismantle mounting structure.

Preferably, the movable arms are symmetrically arranged about the center line of the base, the movable arms are equidistantly distributed on the side of the base, the side sections of the movable arms are in a U-shaped structure, and the movable arms and the base form a telescopic structure through connecting springs.

Preferably, the overlooking cross section of the clamping block is of an arc structure, the clamping block is fixedly connected with the cushion, and the cushion is made of elastic rubber.

Preferably, the base is arranged to be of a concave structure on one side, and the base form a lifting structure.

Preferably, the connecting rod is rotatably connected with the limiting block, the connecting rod is symmetrically arranged relative to the central line of the base, and the limiting block is fixedly connected with the outer barrel and the clamping block.

Compared with the prior art, the beneficial effects of the utility model are that: the air purification negative pressure safety device of the biological safety cabinet can clamp and fix the experimental containers and can fix the experimental containers with different specifications, so that the possibility of toppling the experimental containers during the experiment is reduced, and the success rate of the experiment is improved;

1. the overlooking section of the clamping block is of an arc structure, and the movable arm and the base form a telescopic structure through the connecting spring, so that the experiment container can be clamped and fixed, and the experiment container is prevented from toppling;

2. the movable arm limiting blocks, the connecting rods and the outer barrel are connected with each other, the outer barrel is connected with the inner rod through the reset spring, the limiting blocks and the connecting rods are connected in a rotating mode, under the elastic action of the connecting springs and the reset spring, the movable arms are pulled to the two sides of the base to enable the base to descend, the movable arms are loosened to enable the base to ascend, and experimental containers of different specifications can be clamped and fixed.

Drawings

FIG. 1 is a schematic view of the internal structure of the biosafety cabinet body of the present invention;

FIG. 2 is a schematic view of the connection structure of the movable arm and the outer cylinder of the present invention;

FIG. 3 is a schematic view of the connection structure of the movable arm and the base of the present invention;

fig. 4 is a schematic view of the connection structure of the movable arm and the clamping block of the present invention.

In the figure: 1. a biological safety cabinet body; 2. a support frame; 3. a rubber plug; 4. a base; 5. a connecting spring; 6. a movable arm; 7. a clamping block; 8. a soft cushion; 9. an inner rod; 10. a return spring; 11. an outer cylinder; 12. a base; 13. a limiting block; 14. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a biological safety cabinet air purification negative pressure safety device comprises a biological safety cabinet body 1, a support frame 2, a rubber plug 3, a base 4, a connecting spring 5, a movable arm 6, a clamping block 7, a soft pad 8, an inner rod 9, a reset spring 10, an outer barrel 11, a base 12, a limiting block 13 and a connecting rod 14, wherein the support frame 2 is installed inside the biological safety cabinet body 1, the rubber plug 3 is arranged in the middle of the support frame 2, the base 4 is fixed above the rubber plug 3, the connecting spring 5 is arranged inside the base 4, the base 4 is connected with the movable arm 6 through the connecting spring 5, the clamping block 7 is fixed at the end part of the movable arm 6, the soft pad 8 is arranged on the surface of the clamping block 7, the inner rod 9 is installed on the upper end surface of the base 4, the inner rod 9 is connected with the outer barrel 11 through the reset spring 10, and the base 12 is installed, the side of the outer cylinder 11 and the surface of the movable arm 6 are provided with limit blocks 13, and the limit blocks 13 are connected with each other through a connecting rod 14.

The bottom of support frame 2 sets up to the slope structure, and is coaxial setting between support frame 2 and the biological safety cabinet body 1 to constitute between support frame 2 and the plug 3 and dismantle mounting structure, the liquid of empting can flow the middle part of support frame 2 along the gradient of support frame 2, makes things convenient for the discharge of liquid.

The movable arm 6 sets up about the central line symmetry of base 4, and the equidistant distribution of movable arm 6 is in the avris of base 4 to the side cross-section of movable arm 6 sets up to "U" style of calligraphy structure, and movable arm 6 passes through coupling spring 5 and constitutes extending structure with base 4 in addition, and the convenience carries out the centre gripping to the experimental container of different specifications, prevents that the experimental container from taking place to empty at the in-process of experiment, leads to the error of experiment or even failure.

The overlooking cross section of the clamping block 7 is arranged to be of an arc-shaped structure, the clamping block 7 is fixedly connected with the cushion 8, the cushion 8 is made of elastic rubber, the arc-shaped arrangement of the clamping block 7 can adapt to the shape of an experimental container to clamp the experimental container, and the cushion 8 is arranged to protect the experimental container.

Base 12 sets up to the concave structure in unilateral, and base 12 and base 4 constitute elevation structure, can adapt to the bottom shape of experiment container and fix the experiment container.

The connecting rod 14 is rotatably connected with the limiting block 13, the connecting rod 14 is symmetrically arranged relative to the central line of the base 4, and the limiting block 13 is fixedly connected with the outer cylinder 11 and the clamping block 7.

The working principle is as follows: when the air purification negative pressure safety device of the biological safety cabinet is used, according to the figures 1-4, the movable arm 6 forms a telescopic structure with the base 4 through the connecting spring 5 as shown in figure 3, the movable arm 6 is set to be a symmetrical U-shaped structure as shown in figure 2, the movable arm 6 is connected with the outer cylinder 11 through the limiting block 13 and the connecting rod 14, the outer cylinder 11 forms a telescopic structure with the inner rod 9 through the return spring 10, the outer cylinder 11 is fixedly connected with the base 12, and the limiting block 13 is rotatably connected with the connecting rod 14, so that in the process of an experiment, the movable arm 6 can be pulled open towards two sides of the base 4 under the elastic action of the connecting spring 5, the outer cylinder 11 is pulled to descend through the connecting rod 14 connected with the movable arm 13, the base 12 descends along with the outer cylinder 11, an experimental container is placed on the base 12, the movable arm 6 is loosened, under the elastic action of the connecting spring 5 and the return spring 10, the movable arm 6 can move towards the center of the base 4, meanwhile, the base 12 ascends along with the movement of the movable arm 6, the movable arm 6 is fixedly connected with the clamping block 7 as shown in fig. 4, the overlooking cross section of the clamping block 7 is of an arc-shaped structure, and the surface of the clamping block 7 is provided with the cushion 8, so that the clamping block 7 can clamp and fix the experimental container and can fix containers of different specifications, therefore, the experimental container is not prone to toppling in the experimental process, and the cushion 8 plays a role in protecting the experimental container;

as shown in figure 1, when the liquid in the experimental container is dumped, the liquid flows into the support frame 2 along the base 4, and the bottom of the support frame 2 is arranged to be an inclined structure, so that the rubber plug 3 can be opened when the experiment is finished, the liquid is conveniently treated, and the inner cavity of the biological safety cabinet body 1 is prevented from being polluted.

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 or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a biological safety cabinet air purification negative pressure safety device, includes biological safety cabinet body (1) and coupling spring (5), its characterized in that: a supporting frame (2) is arranged inside the biological safety cabinet body (1), a rubber plug (3) is arranged in the middle of the supporting frame (2), a base (4) is fixed above the rubber plug (3), a connecting spring (5) is arranged inside the base (4), and the base (4) is connected with the movable arm (6) through a connecting spring (5), a clamping block (7) is fixed at the end part of the movable arm (6), a soft pad (8) is arranged on the surface of the clamping block (7), an inner rod (9) is arranged on the upper end surface of the base (4), and the inner rod (9) is connected with the outer cylinder (11) through a return spring (10), and base (12) are installed to the upper end of urceolus (11), stopper (13) are all installed on the avris of urceolus (11) and the surface of digging arm (6), and pass through connecting rod (14) interconnect between stopper (13).

2. The air purification negative pressure safety device of a biosafety cabinet as claimed in claim 1, wherein: the bottom of support frame (2) sets up to the slope structure, and is coaxial setting between support frame (2) and biological safety cabinet body (1) to constitute between support frame (2) and plug (3) and dismantle mounting structure.

3. The air purification negative pressure safety device of a biosafety cabinet as claimed in claim 1, wherein: the movable arm (6) is symmetrically arranged about the center line of the base (4), the movable arms (6) are distributed on the side of the base (4) at equal intervals, the side section of each movable arm (6) is of a U-shaped structure, and the movable arms (6) form a telescopic structure with the base (4) through connecting springs (5).

4. The air purification negative pressure safety device of a biosafety cabinet as claimed in claim 1, wherein: the overlook cross-section of grip block (7) sets up to the arc structure, and is fixed connection between grip block (7) and cushion (8) to cushion (8) set up to elastic rubber material.

5. The air purification negative pressure safety device of a biosafety cabinet as claimed in claim 1, wherein: the base (12) is arranged to be of a concave structure on one side, and the base (12) and the base (4) form a lifting structure.

6. The air purification negative pressure safety device of a biosafety cabinet as claimed in claim 1, wherein: the connecting rod (14) is rotatably connected with the limiting block (13), the connecting rod (14) is symmetrically arranged relative to the center line of the base (4), and the limiting block (13) is fixedly connected with the outer barrel (11) and the clamping block (7).