CN213645313U

CN213645313U - Fume hood for molecular biology experiments

Info

Publication number: CN213645313U
Application number: CN202022231264.1U
Authority: CN
Inventors: 宋淇淇; 姜阜杉; 杨琳燕; 叶建军
Original assignee: Tianjin Agricultural University
Current assignee: Tianjin Agricultural University
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-07-09
Anticipated expiration: 2030-10-09

Abstract

The utility model relates to the technical field of fume hoods, in particular to a fume hood for molecular biology experiments, which comprises an experiment table and a fan, wherein the top end of the experiment table is fixedly connected with an upper cabinet body, the inner sides of the left and right ends of the upper cabinet body are both provided with air inlets, the left and right ends of the upper cabinet body are both fixedly connected with air inlet pipes, the inner side of the air inlet pipe is fixedly connected with an installation rod, the installation rod is far away from one end of the upper cabinet body and is fixedly connected with a motor, the outer side of a screw rod is connected with a nut seat in a threaded rotating way, the outer side of the nut seat is connected with a baffle in a rotating way, and the inner side of the left end of the baffle is fixedly connected with a pressing ring, the utilization rate of the inner side space of the lower cabinet body is improved.

Description

Fume hood for molecular biology experiments

Technical Field

The utility model relates to a fume hood technical field specifically is a fume hood for molecular biology experiments.

Background

Molecular biology is a science that studies the structure and function of biomacromolecules from the molecular level to clarify the nature of life phenomena, and a fume hood, also called as a fume hood or fume hood, is a large-scale device in a biological laboratory, and is used for reducing contact between an experimenter and harmful gases, and a glove box is needed for complete isolation, and the fume hood is a primary barrier for protecting personnel from harm of toxic chemical fumes.

Present fume hood for molecular biology experiments is ventilating, for the dust that prevents the outside air, impurity such as bacterium gets into the fume hood, can add filter equipment at the air intake, after the air current passes through filter equipment, the velocity of flow of air can be reduced very low, make the ventilation effect relatively poor, simultaneously in order to operate conveniently, the laboratory bench of current fume hood has certain height apart from ground, the locker is usually provided with in the laboratory bench below, the rigidity of the subregion baffle of its locker, can't change the size of each subregion according to actual conditions, be not convenient for classify different reagent bottles or laboratory glassware and deposit, space utilization to the locker is lower, therefore, propose a fume hood for molecular biology experiments to above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fume hood for molecular biology experiments to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a fume hood for molecular biology experiments comprises an experiment table and a fan, wherein the top end of the experiment table is fixedly connected with an upper cabinet body, air inlets are respectively formed in the inner sides of the left end and the right end of the upper cabinet body, air inlet pipes are fixedly connected to the left end and the right end of the upper cabinet body, the air inlet pipes are communicated with the inner side of the upper cabinet body through the air inlets, an installation rod is fixedly connected to the inner side of each air inlet pipe, a motor is fixedly connected to one end, away from the upper cabinet body, of the installation rod, a connecting shaft is fixedly connected to the tail end of a main shaft of the motor, a second fan blade is fixedly connected to the other end of the connecting shaft, a first fan blade is fixedly connected to the outer side, close to one side of the motor, filter cotton is fixedly connected to the inner side of each air inlet pipe and is positioned between the, the operation opening has all been seted up to the inboard left and right sides of observation board, the laboratory bench bottom end fixedly connected with is down the cabinet body, the inboard fixedly connected with screw rod of the cabinet body down, screw rod outside screw thread rotates and is connected with the nut seat, the nut seat outside rotates and is connected with the baffle, the inboard fixedly connected with clamping ring of baffle left end to the clamping ring rotates with the nut seat and is connected.

Preferably, the top end of the fan is communicated with a connecting pipe, the other end of the connecting pipe is communicated with an air purifier, the air purifier is fixedly connected with the upper cabinet body, and the fan is an axial flow fan.

Preferably, the bottom end of the lower cabinet body is fixedly connected with a threaded cylinder, the inner side of the bottom end of the threaded cylinder is in threaded rotation connection with supporting legs, and the number of the supporting legs is four.

Preferably, the left side and the right side of the inner side of the front end of the lower cabinet body are rotatably connected with cabinet doors through hinges.

Preferably, the viewing plate is made of plexiglas.

Preferably, the inner sides of the front side and the rear side of each partition are connected with guide rods in a sliding mode, the guide rods are fixedly connected with the lower cabinet body, and the number of the partitions is four.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, fan through setting up, the air outlet, the air intake, the air-supply line, including a motor, an end cap, a controller, and a cover plate, first flabellum, second flabellum and filter pulp, when needs are ventilated, start the motor of the left and right sides and the fan at top simultaneously, the motor can drive first flabellum and second flabellum rotation simultaneously through the connecting axle, the outside air is through filtering the cotton under the drive of first flabellum, filter impurity such as dust and bacterium by filtering the cotton, air flow rate reduces, then can carry out the secondary acceleration by the second flabellum, make the air flow accelerate, air from both sides to central authorities, flow from the bottom again, at last by the fan discharge, realize carrying out the secondary acceleration to the air that is filtered the cotton deceleration, the air that the air flow is fast, high ventilation efficiency, can guarantee good ventilation effect when the experiment.

2. The utility model discloses in, through screw rod, nut seat, baffle, the lower cabinet body and the retaining ring that sets up, through rotating the nut seat, control when making the nut seat rotatory on the screw rod, the nut seat drives down the baffle and removes to can change the space size of the baffle left and right sides, can select suitable storage space according to different experimental apparatus's quantity, be convenient for carry out classified storage to different experimental apparatus, improve the space utilization of the internal side of lower cabinet.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present invention;

FIG. 4 is a schematic view of the structure of FIG. 1 at C according to the present invention;

FIG. 5 is a schematic view of the top-down mounting structure of the screw rod of the present invention;

fig. 6 is the mounting structure schematic diagram of the cabinet door of the utility model.

In the figure: 1-experiment table, 2-air inlet pipe, 3-upper cabinet body, 4-air outlet, 5-air purifier, 6-connecting pipe, 7-blower, 8-screw rod, 9-clapboard, 10-lower cabinet body, 11-screw cylinder, 12-supporting leg, 13-air inlet, 14-mounting rod, 15-motor, 16-connecting shaft, 17-first fan blade, 18-second fan blade, 19-filter cotton, 20-pressing ring, 21-nut seat, 22-guide rod, 23-observation plate, 24-operation opening and 25-cabinet door.

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. 1-6, the present invention provides a technical solution:

a molecular biology laboratory fume hood comprises a laboratory bench 1 and a fan 7, wherein the top end of the laboratory bench 1 is fixedly connected with an upper cabinet body 3, the inner sides of the left and right ends of the upper cabinet body 3 are respectively provided with an air inlet 13, the left and right ends of the upper cabinet body 3 are respectively fixedly connected with an air inlet pipe 2, the air inlet pipe 2 is communicated with the inner side of the upper cabinet body 3 through the air inlet 13, the inner side of the air inlet pipe 2 is fixedly connected with an installation rod 14, one end of the installation rod 14 far away from the upper cabinet body 3 is fixedly connected with a motor 15, the tail end of a main shaft of the motor 15 is fixedly connected with a connecting shaft 16, the other end of the connecting shaft 16 is fixedly connected with a second fan blade 18, the outer side of the connecting shaft 16 near the motor 15 is fixedly connected with a first fan blade 17, the motor 15 is convenient to simultaneously drive the first fan blade 17, the arrangement is convenient for filtering outside air through the filter cotton 19, and can accelerate the filtered and decelerated air for the second time through the rotation of the second fan blade 18, the top end of the upper cabinet body 3 is provided with the air outlet 4, the top end of the air outlet 4 is communicated with the fan 7, the fan 7 exhausts air outwards to enable the air inside the upper cabinet body 3 to flow upwards from the bottom, the inner side of the front end of the upper cabinet body 3 is fixedly connected with the observation plate 23, the inner side of the upper cabinet body 3 can be observed through the observation plate 23 to facilitate experimental observation, the left side and the right side of the inner side of the observation plate 23 are both provided with the operation ports 24, an experimenter inserts arms into the operation ports 24 to perform experiments on the experiment table 1, the bottom end of the experiment table 1 is fixedly connected with the lower cabinet body 10, the inner side of the lower cabinet body 10 is fixedly connected with the screw, the pressing ring 20 is fixedly connected to the inner side of the left end of the partition board 9, and the pressing ring 20 is rotatably connected with the nut seat 21, so that the position of the partition board 9 can be changed conveniently, and the space size of the left side and the space size of the right side of the partition board 9 can be changed.

The top end of the fan 7 is communicated with a connecting pipe 6, the other end of the connecting pipe 6 is communicated with an air purifier 5, the air purifier 5 is fixedly connected with the upper cabinet body 3, the arrangement is convenient for processing the discharged air, and preventing the polluted or corrosive gas from directly discharging to the outside, the fan 7 is an axial flow fan, the bottom end of the lower cabinet body 10 is fixedly connected with a threaded cylinder 11, the inner side of the bottom end of the threaded cylinder 11 is rotatably connected with supporting legs 12, and the number of the supporting legs 12 is four, the arrangement is convenient for enabling the four supporting legs 12 to simultaneously land, so that the utility model is suitable for uneven ground, the left side and the right side of the inner side of the front end of the cabinet body 10 are rotatably connected with cabinet doors 25 through hinges, the cabinet doors 25 can play a protection role on experimental equipment such as reagent bottles and the like placed on the, be convenient for see through the experimental conditions of observing that board 23 observes the internal side of last cabinet body 3, the equal sliding connection in both sides has guide arm 22 around the baffle 9 to guide arm 22 and lower cabinet body 10 fixed connection, the total four of number of baffle 9 make the connection structure of baffle 9 more stable, can divide into five spaces through baffle 9 with lower cabinet body 10 inboard.

The working process is as follows: when the utility model is used, the power is supplied by the external power supply, when ventilation is needed in the experiment, the motors 15 on the left side and the right side and the fan 7 on the top are started simultaneously, the motors 15 drive the first fan blades 17 and the second fan blades 18 to rotate simultaneously through the connecting shafts 16, outside air passes through the filter cotton 19 under the drive of the first fan blades 17, impurities such as dust, bacteria and the like are filtered and removed by the filter cotton 19, the flow rate of the filtered air is low, under the driving of the second fan blade 18, the air is accelerated by the second fan blade 18 for the second time, so that the air flow speed is accelerated, the air flows from the two sides to the center, driven by the fan 7, air flows from bottom to top and is finally discharged by the fan 7, the discharged air enters the air purifier 5 through the connecting pipe 6, is purified and then discharged to the outside, ventilation on the inner side of the upper cabinet body is realized, and an experimenter performs experimental operation by inserting arms into the operation port 24; through rotating nut seat 21, make nut seat 21 remove about rotatory while on screw rod 8, nut seat 21 drives down baffle 9 and removes to can change the space size of the baffle 9 left and right sides, can select suitable storage space according to the quantity of different experimental apparatus, improve the space utilization of the inboard of lower cabinet body 10.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fume hood for molecular biology experiments, includes laboratory bench (1) and fan (7), its characterized in that: the experiment table is characterized in that an upper cabinet body (3) is fixedly connected to the top end of the experiment table (1), air inlets (13) are formed in the inner sides of the left end and the right end of the upper cabinet body (3), air inlet pipes (2) are fixedly connected to the left end and the right end of the upper cabinet body (3), the air inlet pipes (2) are communicated with the inner side of the upper cabinet body (3) through the air inlets (13), mounting rods (14) are fixedly connected to the inner side of the air inlet pipes (2), one end, far away from the upper cabinet body (3), of each mounting rod (14) is fixedly connected with a motor (15), the tail end of a spindle of each motor (15) is fixedly connected with a connecting shaft (16), the other end of each connecting shaft (16) is fixedly connected with a second fan blade (18), a first fan blade (17) is fixedly connected to the outer side, close to the motor (15), filter cotton (19) is fixedly connected to the, go up cabinet body (3) top and seted up air outlet (4), air outlet (4) top intercommunication has fan (7), go up cabinet body (3) the inboard fixedly connected with in front end and observe board (23), operation mouth (24) have all been seted up to the inboard left and right sides of observation board (23), cabinet body (10) under laboratory bench (1) bottom fixedly connected with, the inboard fixedly connected with screw rod (8) of the lower cabinet body (10), screw rod (8) outside screw thread is rotated and is connected with nut seat (21), nut seat (21) outside is rotated and is connected with baffle (9), baffle (9) the inboard fixedly connected with clamping ring (20) of left end to clamping ring (20) rotate with nut seat (21) and are connected.

2. The fume hood for molecular biology experiments according to claim 1, wherein: fan (7) top intercommunication has connecting pipe (6), connecting pipe (6) other end intercommunication air purifier (5) to air purifier (5) and last cabinet body (3) fixed connection, fan (7) are axial fan.

3. The fume hood for molecular biology experiments according to claim 1, wherein: the cabinet is characterized in that a threaded cylinder (11) is fixedly connected to the bottom end of the lower cabinet body (10), supporting legs (12) are rotatably connected to the inner side of the bottom end of the threaded cylinder (11) in a threaded mode, and the number of the supporting legs (12) is four.

4. The fume hood for molecular biology experiments according to claim 1, wherein: the left side and the right side of the inner side of the front end of the lower cabinet body (10) are rotatably connected with cabinet doors (25) through hinges.

5. The fume hood for molecular biology experiments according to claim 1, wherein: the viewing plate (23) is made of organic glass.

6. The fume hood for molecular biology experiments according to claim 1, wherein: the inner sides of the front side and the rear side of the partition board (9) are connected with guide rods (22) in a sliding mode, the guide rods (22) are fixedly connected with the lower cabinet body (10), and the number of the partition boards (9) is four.