Air guide device for laboratory fume hood

Abstract

The utility model discloses an air guide device for a laboratory fume hood, and relates to the technical field of fume hoods. The device comprises a mounting box, a plurality of air guide assemblies are arranged in the mounting box from left to right at equal intervals, a mounting pipe is fixed to the lower end of a box body, a threaded plate is in threaded connection with the interior of the mounting pipe, a connecting sleeve is fixed to the lower wall of the threaded plate, a motor is arranged below the connecting sleeve, and a rotating strip is fixed to a power output shaft of the motor; a conveying pump is arranged in front of the hollow box, an electromagnetic valve is arranged between the hollow box and the box body, and an air conveying pipe and a connecting pipe are correspondingly fixed to the air inlet end and the air outlet end of the electromagnetic valve respectively. The motor works to enable the threaded plate to move during rotation, gas in a certain box body is independently treated through cooperation of the electromagnetic valve and the conveying pump, and the problems that in the prior art, a baffle needs to be manually operated to rotate when the threaded plate moves, use is inconvenient, and in the prior art, the box body needs to be manually taken out for waste gas treatment, and waste gas treatment is inconvenient are solved. And the operation is relatively tedious.

Description

Technical Field

[0001] The utility model belongs to the technical field of fume hoods, in particular to an air guide device for a laboratory fume hood. Background Art

[0002] A fume hood is a safety device used in laboratories and industrial environments to control and remove harmful gases, steam, dust, smoke and other harmful substances to protect the health and safety of experimenters or operators. Commonly used fume hoods have only one exhaust structure. In order to be able to process exhaust gases in different situations separately and avoid mutual influence of different exhaust gases, people have improved the exhaust structure.

[0003] After searching, the authorization announcement number CN216460759U and the authorization announcement date 2022.05.10 discloses an air guide device for a laboratory fume hood, including an air guide device body, a first inner cavity is opened on the upper surface of the air guide device body, and a second inner cavity is opened on the lower surface of the air guide device body, and a plurality of boxes are arranged inside the first inner cavity, and a second connecting pipe is arranged at the upper end of the box, and a first connecting pipe is arranged at the lower end of the box, and an air pipe is arranged inside the second inner cavity and sealed with the first connecting pipe, and an air blocking plate is connected to the lower end of the air pipe; the utility model provides multiple groups of separate air intake structures by setting up multiple groups of boxes and air pipes. When conducting test processing, the exhaust gas under different circumstances can be processed separately to avoid the mutual influence of different exhaust gases, and there is no need to clean it each time it is used. It only needs to be cleaned uniformly after the test is completed to avoid the occurrence of test termination.

[0004] In the prior art, when in use, the sealing or exhaust state is switched by rotating the baffle to drive the threaded plate to rotate. However, the threaded plate needs to be moved manually to rotate the baffle, which is inconvenient to use. In addition, after the interior of the box is filled with exhaust gas, the box needs to be manually taken out for exhaust gas treatment, and the operation is relatively cumbersome. For this reason, we provide an air guide device for a laboratory fume hood to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an air guide device for a laboratory fume hood, which moves when a threaded plate rotates through the operation of a motor, and processes the gas in a certain box separately through the cooperation of a solenoid valve and a delivery pump, thereby solving the problems that the prior art requires manual operation of the baffle plate to rotate in order to move the threaded plate, which is inconvenient to use, and the prior art requires manual removal of the box for exhaust gas treatment, which is relatively cumbersome to operate.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is an air guide device for a laboratory fume hood, comprising a mounting box, a plurality of air guide components are arranged equidistantly from left to right inside the mounting box, the air guide components comprise a box body, a mounting pipe is fixed at the lower end of the box body, a threaded plate is connected to the inner thread of the mounting pipe, a connecting sleeve is fixed to the lower wall of the threaded plate, a motor is arranged below the connecting sleeve, a rotating bar is fixed on the power output shaft of the motor, and the rotating bar is clearance-matched with the connecting sleeve;

[0008] A gas delivery component is arranged on the front side of the box body, and the gas delivery component includes a hollow box. A delivery pump is arranged in front of the hollow box. A solenoid valve is arranged between the hollow box and the box body. A gas delivery pipe and a connecting pipe are fixed to the air inlet and air outlet ends of the solenoid valve respectively.

[0009] The utility model is further configured that a box cover is arranged outside the upper end of the box body, and the box cover is fixedly connected to the box body by bolts, and a top cover is fixed to the upper end of the box body by bolts.

[0010] The utility model is further configured that a round tube is fixed to the upper end of the installation tube, and the threaded plate is threadedly connected to the round tube, and a through groove is opened on the lower side of the round tube.

[0011] The utility model is further configured that a mounting plate is fixed above the circular tube corresponding to the inner wall of the box body, a fan is fixed on the lower wall of the mounting plate, and a through hole is opened on the mounting plate corresponding to the position of the fan.

[0012] The utility model is further configured such that a protrusion is fixed on the side wall of the upper end of the rotating bar, a rectangular groove is opened on the side wall corresponding to the connecting sleeve at the position where the protrusion is located, and the motor is fixedly connected to the lower wall of the installation box.

[0013] The utility model is further configured such that the front end of the connecting pipe is fixedly connected to the hollow box, the hollow box is fixedly connected to the installation box, and the rear end of the gas pipe is fixedly connected to the corresponding box body.

[0014] The utility model is further configured such that the air inlet and air outlet ends of the delivery pump are both fixed with conduits, the end of the conduit at the air inlet end of the delivery pump away from the delivery pump is fixedly connected to the hollow box, and a controller is fixed on the front wall of the installation box.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model sets a motor, a rotating bar and a connecting sleeve, and drives the rotating bar to rotate by the motor, so that the connecting sleeve rotates and drives the threaded plate to rotate, so that the threaded plate can be moved without manual operation, which is more convenient to use and solves the problem that the prior art requires manual operation of the baffle to rotate to move the threaded plate, which is inconvenient to use.

[0017] 2. The utility model sets a solenoid valve and a delivery pump, opens the solenoid valve in front of the box for the waste gas to be treated, and uses the delivery pump to separately transport and collect the waste gas to be treated. There is no need to manually take out the box, and the operation is more labor-saving and simple. It solves the problem that the prior art requires manual removal of the box for waste gas treatment, which is a relatively cumbersome operation.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The present invention is a structural diagram of an air guide device for a laboratory fume hood.

[0021] Figure 2 This is a structural diagram of the interior of the installation box.

[0022] Figure 3 It is a vertical cross-sectional structural diagram of the air guide assembly.

[0023] Figure 4 This is a breakdown diagram of the air guide assembly.

[0024] Figure 5 This is a structural diagram of the gas transmission component.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-installation box, 101-box cover, 102-controller, 2-air guide assembly, 201-top cover, 202-box body, 2021-installation pipe, 203-installation plate, 2031-perforation, 204-fan, 205-round tube, 2051-slot, 206-threaded plate, 207-rotation bar, 2071-protrusion, 208-motor, 209-connecting sleeve, 2091-rectangular groove, 3-gas delivery assembly, 301-hollow box, 3011-connecting pipe, 302-solenoid valve, 3021-gas delivery pipe, 303-delivery pump, 3031-conduit. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0029] See also Figure 1-4 The utility model is an air guide device for a laboratory fume hood, including an installation box 1, wherein a plurality of air guide components 2 are equidistantly arranged inside the installation box 1 from left to right, wherein the air guide component 2 includes a box body 202, wherein a mounting tube 2021 is fixed at the lower end of the box body 202, wherein a threaded plate 206 is connected to the inner thread of the mounting tube 2021, wherein a connecting sleeve 209 is fixed to the lower wall of the threaded plate 206, wherein a motor 208 is arranged below the connecting sleeve 209, wherein a rotating bar 207 is fixed to the power output shaft of the motor 208, and the rotating bar 207 is clearance-matched with the connecting sleeve 209, wherein the threaded plate 206 is driven to rotate by the operation of the motor 208, so that the threaded plate 206 is moved, thereby achieving the purpose of moving the threaded plate 206 without manual operation.

[0030] Specifically, a box cover 101 is provided on the outside of the upper end of the box body 202, and the box cover 101 is fixedly connected to the box body 202 by bolts. A top cover 201 is fixed to the upper end of the box body 202 by bolts. When the top cover 201 is fixed to the box body 202, the threaded plate 206 moves to a state of threaded connection with the mounting tube 2021, and the interior of the box body 202 is in a sealed state.

[0031] A round tube 205 is fixed to the upper end of the mounting tube 2021 , and the threaded plate 206 is threadedly connected to the round tube 205 . A through groove 2051 is provided on the lower side of the round tube 205 . When the threaded plate 206 moves above the through groove 2051 , the gas passes through the through groove 2051 and enters the interior of the box 202 .

[0032] A mounting plate 203 is fixed to the inner wall of the box 202 above the circular tube 205, and a fan 204 is fixed to the lower wall of the mounting plate 203. A through hole 2031 is provided on the mounting plate 203 corresponding to the position of the fan 204. When the fan 204 is working, it can suck the outside air into the box 202.

[0033] A protrusion 2071 is fixed to the side wall at the upper end of the rotating bar 207, and a rectangular groove 2091 is opened on the side wall corresponding to the connecting sleeve 209 at the position where the protrusion 2071 is located. The protrusion 2071 is always located in the rectangular groove 2091 and moves up and down to prevent the rotating bar 207 from being separated from the connecting sleeve 209, and the motor 208 is fixedly connected to the lower wall of the installation box 1.

[0034] The operation process of this embodiment is: when using the box body 202 to store air, the top cover 201 is fixed and sealed with the box body 202, and the controller 102 is operated to make the motor 208 work to drive the rotating bar 207 to rotate, thereby driving the connecting sleeve 209 to rotate, and then driving the threaded plate 206 to rotate, until the threaded plate 206 moves up to the top of the groove 2051 and is threadedly connected with the round tube 205. At this time, the controller 102 is operated to make the fan 204 work, and the airflow passes through the groove 2051 into the box body 202 to complete the air storage; when exhausting, the threaded plate 206 is located above the groove 2051, and the cover plate is separated from the box body 202, and the fan 204 can be operated at this time. Specific embodiment 2

[0036] See also Figure 1 , 2 5 is a second embodiment of the utility model, which is based on the previous embodiment, but is different from the first embodiment in that: a gas delivery component 3 is arranged on the front side of the box body 202, and the gas delivery component 3 includes a hollow box 301, a delivery pump 303 is arranged in front of the hollow box 301, and a solenoid valve 302 is arranged between the hollow box 301 and the box body 202, and a gas delivery pipe 3021 and a connecting pipe 3011 are fixed to the air inlet and outlet ends of the solenoid valve 302 respectively. By opening the solenoid valve 302 in front of the box body 202 where the gas needs to be processed, the gas to be processed can be extracted for processing using the delivery pump 303.

[0037] Specifically, the front end of the connecting pipe 3011 is fixedly connected to the hollow box 301, the hollow box 301 is fixedly connected to the installation box 1, the rear end of the gas pipe 3021 is fixedly connected to the corresponding box body 202, the interior of the gas pipe 3021 is connected to the interior of the box body 202, and the interior of the connecting pipe 3011 is connected to the interior of the hollow box 301.

[0038] The air inlet and outlet ends of the delivery pump 303 are both fixed with conduits 3031. The end of the conduit 3031 at the air inlet end of the delivery pump 303 away from the delivery pump 303 is fixedly connected to the hollow box 301. The interior of the conduit 3031 is connected to the interior of the hollow box 301. The controller 102 is fixed to the front wall of the installation box 1.

[0039] Furthermore, the motor 208, the fan 204, the solenoid valve 302 and the delivery pump 303 are all electrically connected to the single-chip microcomputer in the controller 102 through conductive wires, and the single-chip microcomputer in the controller 102 is electrically connected to an external power supply through conductive wires. At the same time, the electrical appliances in the air guide device for the laboratory fume hood are all existing technologies, and their models are not limited here.

[0040] The rest of the structure is the same as that of the first embodiment.

[0041] The operation process of this embodiment is: when it is necessary to process the gas inside a certain box 202, the solenoid valve 302 directly in front of the box 202 is opened by operating the controller 102, and then the controller 102 controls the delivery pump 303 to work. The gas to be processed passes through the gas pipe 3021, the solenoid valve 302, the connecting pipe 3011, the hollow box 301, the delivery pump 303 and the conduit 3031 for gas delivery under the operation of the delivery pump 303.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An air guide device for a laboratory fume hood, comprising a mounting box (1), characterized in that: A plurality of air guide components (2) are arranged equidistantly from left to right inside the installation box (1), and the air guide components (2) include a box body (202), a mounting tube (2021) is fixed to the lower end of the box body (202), a threaded plate (206) is connected to the inner thread of the mounting tube (2021), a connecting sleeve (209) is fixed to the lower wall of the threaded plate (206), a motor (208) is arranged below the connecting sleeve (209), a rotating bar (207) is fixed to the power output shaft of the motor (208), and the rotating bar (207) and the connecting sleeve (209) are clearance-matched; A gas delivery assembly (3) is arranged at the front side of the box body (202), and the gas delivery assembly (3) comprises a hollow box (301). A delivery pump (303) is arranged in front of the hollow box (301). A solenoid valve (302) is arranged between the hollow box (301) and the box body (202), and a gas delivery pipe (3021) and a connecting pipe (3011) are fixed to the gas inlet end and the gas outlet end of the solenoid valve (302), respectively.

2. The air guide device for a laboratory fume hood according to claim 1, characterized in that: A box cover (101) is arranged outside the upper end of the box bodies (202), and the box cover (101) is fixedly connected to the box bodies (202) by bolts, and a top cover (201) is fixed to the upper end of the box bodies (202) by bolts.

3. The air guide device for a laboratory fume hood according to claim 1, characterized in that: A round tube (205) is fixed to the upper end of the mounting tube (2021), and the threaded plate (206) is threadedly connected to the round tube (205), and a through groove (2051) is provided on the lower side of the round tube (205).

4. The air guide device for a laboratory fume hood according to claim 3, characterized in that: A mounting plate (203) is fixed above the circular tube (205) corresponding to the inner wall of the box body (202), a fan (204) is fixed to the lower wall of the mounting plate (203), and a through hole (2031) is opened on the mounting plate (203) corresponding to the position where the fan (204) is located.

5. The air guide device for a laboratory fume hood according to claim 1, characterized in that: A protrusion (2071) is fixed to the side wall at the upper end of the rotating bar (207), and a rectangular groove (2091) is provided on the side wall corresponding to the connecting sleeve (209) at the position where the protrusion (2071) is located, and the motor (208) is fixedly connected to the lower wall of the installation box (1).

6. The air guide device for a laboratory fume hood according to claim 1, characterized in that: The front end of the connecting pipe (3011) is fixedly connected to the hollow box (301), the hollow box (301) is fixedly connected to the installation box (1), and the rear end of the gas transmission pipe (3021) is fixedly connected to the corresponding box body (202).

7. The air guide device for a laboratory fume hood according to claim 6, characterized in that: The air inlet and air outlet ends of the delivery pump (303) are both fixed with conduits (3031); the end of the conduit (3031) at the air inlet end of the delivery pump (303) away from the delivery pump (303) is fixedly connected to the hollow box (301); and a controller (102) is fixed to the front wall of the installation box (1).

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