Laboratory ventilation device with filtering function

Abstract

The laboratory ventilation device with the filtering function comprises a box body, an installation pipe is fixedly installed on the top of the box body, a connecting pipe is connected to the inner side of the top end of the installation pipe in a threaded mode, the bottom end of the connecting pipe is communicated with a plurality of flow guide pipes, and flange rings are fixedly installed at one ends of the flow guide pipes and one end of the connecting pipe. A threaded plate is fixedly mounted in the mounting pipe, a supporting plate is movably mounted in the box body, and a sealing frame is fixedly mounted on the outer side of the supporting plate; when cleaning is needed, a vibration motor is started, the vibration motor applies vibration force to a supporting plate, the supporting plate generates displacement after vibration, a filter cartridge is driven to move, at the moment, smoke dust and dust are vibrated to fall on the top of the supporting plate, then water flow is guided in through a communicating pipe, and the top of the communicating pipe is flushed; the water flow carries impurities and is washed away through the other communicating pipe, the overall cleaning effect is good, use is convenient, the use effect and cleaning efficiency are improved, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory ventilation, in particular to a laboratory ventilation device with a filtering function. Background Art

[0002] The laboratory is a place where experiments are conducted. Ventilation is a technology that uses natural or mechanical methods to allow wind to pass through the room or sealed environment without obstruction to create a hygienic, safe and suitable air environment. Frequent ventilation can improve indoor air quality and is good for health.

[0003] In the process of laboratory work, different experiments are usually required, and some experiments will produce smoke particles and dust floating objects. If they are not cleaned, they will pollute the air and affect the environment in the laboratory. The existing ventilation devices generally cannot clean the particles, and the overall filtering and cleaning effect is poor. Based on this, we propose a laboratory ventilation device with filtering function. Utility Model Content

[0004] The purpose of the utility model is to provide a laboratory ventilation device with a filtering function to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laboratory ventilation device with a filtering function, comprising a box body, a mounting pipe is fixedly installed on the top of the box body, a connecting pipe is threadedly connected to the inner side of the top of the mounting pipe, a plurality of flow guide pipes are connected to the bottom of the connecting pipe, a flange ring is fixedly installed on one end of the flow guide pipe and the connecting pipe, a threaded plate is fixedly installed inside the mounting pipe, a support plate is movably installed inside the box body, a sealing frame is fixedly installed on the outer side of the support plate, four elastic mechanisms are fixedly installed on the bottom of the support plate, a vibration motor is fixedly installed on the bottom of the support plate, a sealing positioning seat is fixedly installed on the top of the support plate, and the sealing positioning seat is fixedly installed on the top of the support plate. A plurality of connecting holes are provided at the bottom of the inner cavity of the seat, a filter cartridge is movably installed on the inner side of the sealing positioning seat, a support seat is movably installed on the bottom of the inner cavity of the sealing positioning seat, a bracket is fixedly installed on the top of the support seat, a plurality of horizontal elastic support rods are fixedly installed on the outer side of the bracket, a plurality of inclined elastic support rods are fixedly installed on the top of the bracket, a top elastic support rod is fixedly installed on the top of the bracket, both sides of the box body are connected with connecting pipes, an air pump is fixedly installed inside the box body, the output end of the air pump is connected with an exhaust pipe, the end of the exhaust pipe away from the flange ring extends to the outside of the box body, the air pump is located at the bottom of the support plate, and a sealed box door is movably installed on the front side of the box body.

[0006] Preferably, valves are installed inside the connecting pipes, the connecting pipes are connected to the top of the support plate, and grooves are provided at positions of the sealing frame corresponding to the support plate and the connecting pipe.

[0007] Preferably, the mounting tube is fixedly passed through the top of the box and extends to the inside of the box, the communicating holes are evenly distributed in a circle at the bottom of the inner cavity of the sealing positioning seat, and the communicating holes pass through the sealing positioning seat and extend to the bottom of the support plate.

[0008] Preferably, the bottom ends of the four elastic mechanisms are fixedly mounted inside the box, and the outer side of the sealing frame is tightly fitted with the inner wall of the box.

[0009] Preferably, the top of the filter cartridge is a conical closed structure, and the filter cartridge includes an activated carbon adsorption layer and a PM2.5 filter layer, and the PM2.5 filter layer is located on the outside of the activated carbon adsorption layer.

[0010] Preferably, the transverse elastic force support rods and the oblique elastic force support rods are uniformly distributed on the outside of the bracket in a circumferential manner, and the ends of the transverse elastic force support rods, the top elastic force support rods and the oblique elastic force support rods away from the bracket are all attached to the inner wall of the filter cartridge.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: when the equipment is in use, the operator connects the connecting pipe, the guide pipe and the flange ring to the air collecting hood and the guide device, so that the air pipe is located above the experimental table, and starts the air extraction pump. When smoke particles and dust particles are generated in the experiment, the air extraction pump extracts the airflow inside the box body and forms a negative pressure. At this time, the airflow enters the inside of the installation pipe through the drainage of the guide pipe and the connecting pipe, and a spiral drainage effect is applied to the airflow through the threaded plate inside the installation pipe, so that the smoke particles and dust particles are rotated and dispersed to avoid concentration. At this time, the airflow is filtered through the filter cartridge, and the particulate matter is blocked on the outside of the filter cartridge. The airflow enters the bottom of the support plate from the inside of the filter cartridge through the connecting hole and is extracted through the air extraction pump. This scheme is convenient for filtering, ventilation and filtering, and is easy to use and has a good filtering effect.

[0012] When cleaning is needed, the vibration motor is started, and the vibration motor applies vibration force to the support plate. The support plate is displaced after vibration, and the filter cartridge is displaced. At this time, smoke and dust are shaken off to the top of the support plate, and then water is introduced through a connecting pipe to flush the top of the connecting pipe. The water flow carries the impurities away through another connecting pipe. The overall cleaning effect is good, easy to use, and the use effect and cleaning efficiency are improved. It is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the front three-dimensional appearance structure of the utility model.

[0014] Figure 2It is a schematic diagram of the rear-view stereoscopic appearance structure of the utility model.

[0015] Figure 3 It is a front sectional structural schematic diagram of the utility model.

[0016] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0017] In the figure: 1. box body; 2. connecting pipe; 3. sealed box door; 4. installation pipe; 5. connecting pipe; 6. guide pipe; 7. flange ring; 8. exhaust pipe; 9. filter cartridge; 901. activated carbon adsorption layer; 902. PM2.5 filter layer; 10. threaded plate; 11. horizontal elastic support rod; 12. support seat; 13. sealing frame; 14. connecting hole; 15. elastic mechanism; 16. vibration motor; 17. vacuum pump; 18. top elastic support rod; 19. sealing positioning seat; 20. bracket; 21. oblique elastic support rod; 22. support plate. DETAILED DESCRIPTION

[0018] 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 in 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.

[0019] See also Figure 1-Figure 4The utility model provides a technical solution: a laboratory ventilation device with filtering function, including a box body 1, a mounting pipe 4 is fixedly installed on the top of the box body 1, a connecting pipe 5 is threadedly connected to the inner side of the top of the mounting pipe 4, and a plurality of guide pipes 6 are connected to the bottom end of the connecting pipe 5, and flange rings 7 are fixedly installed on one end of the guide pipe 6 and the connecting pipe 5, and a threaded plate 10 is fixedly installed inside the mounting pipe 4, a support plate 22 is movably installed inside the box body 1, a sealing frame 13 is fixedly installed on the outer side of the support plate 22, four elastic mechanisms 15 are fixedly installed on the bottom of the support plate 22, a vibration motor 16 is fixedly installed on the bottom of the support plate 22, a sealing positioning seat 19 is fixedly installed on the top of the support plate 22, and the bottom of the inner cavity of the sealing positioning seat 19 A plurality of connecting holes 14 are provided on the inside of the sealing positioning seat 19, a filter cartridge 9 is movably installed on the inner side of the sealing positioning seat 19, a support seat 12 is movably installed on the bottom of the inner cavity of the sealing positioning seat 19, a bracket 20 is fixedly installed on the top of the support seat 12, a plurality of horizontal elastic support rods 11 are fixedly installed on the outer side of the bracket 20, a plurality of oblique elastic support rods 21 are fixedly installed on the top of the bracket 20, a top elastic support rod 18 is fixedly installed on the top of the bracket 20, both sides of the box body 1 are connected with connecting pipes 2, an exhaust pump 17 is fixedly installed inside the box body 1, the output end of the exhaust pump 17 is connected with an exhaust pipe 8, and the end of the exhaust pipe 8 away from the flange ring 7 extends to the outside of the box body 1, the exhaust pump 17 is located at the bottom of the support plate 22, and a sealed box door 3 is movably installed on the front of the box body 1.

[0020] The working principle of the above technical solution: when in use, the operator connects the connecting pipe 5, the guide pipe 6 and the flange ring 7 to the air collecting hood and the guide device, so that the air pipe is located above the experimental table, and starts the vacuum pump 17. When the experiment produces smoke particles and dust particles, the vacuum pump 17 extracts the airflow inside the box 1 and forms a negative pressure. At this time, the airflow enters the installation pipe 4 through the drainage of the guide pipe 6 and the connecting pipe 5, and a spiral drainage effect is applied to the airflow through the threaded plate 10 inside the installation pipe 4, so that the smoke particles and dust particles are rotated and dispersed to avoid concentration. At this time, the airflow passes through the filter cartridge 9, and the particulate matter is blocked on the outside of the filter cartridge 9. The airflow enters the bottom of the support plate 22 from the inside of the filter cartridge 9 through the connecting hole 14 and is discharged through the vacuum pump 17. This solution is convenient for filtering, ventilation and filtration, and is easy to use and has a good filtering effect.

[0021] In another embodiment, Figure 1-Figure 4 As shown, valves are installed inside the connecting pipe 2 , the connecting pipe 2 is connected to the top of the support plate 22 , and grooves are provided at positions corresponding to the sealing frame 13 , the support plate 22 and the connecting pipe 2 .

[0022] The connecting pipe 2 is convenient for guiding water flow, and can flush the top of the support plate 22, thereby improving the cleaning efficiency, being easy to use, and making cleaning more convenient.

[0023] In another embodiment, Figure 3 and Figure 4 As shown, the mounting tube 4 is fixedly passed through the top of the box body 1 and extends to the inside of the box body 1 , and the communicating holes 14 are evenly distributed in a circle at the bottom of the inner cavity of the sealing positioning seat 19 , and the communicating holes 14 pass through the sealing positioning seat 19 and extend to the bottom of the supporting plate 22 .

[0024] When cleaning is needed, the vibration motor 16 is started, and the vibration motor 16 applies vibration force to the support plate 22. The support plate 22 is displaced after vibration, and the filter cartridge 9 is driven to be displaced. At this time, smoke and dust are shaken off the top of the support plate 22, and then water is introduced through a connecting pipe 2 to flush the top of the connecting pipe 2. The water flow carries the impurities away through another connecting pipe 2. The overall cleaning effect is good, easy to use, and the use effect and cleaning efficiency are improved. It is easy to use.

[0025] In another embodiment, Figure 3 and Figure 4 As shown, the bottom ends of the four elastic mechanisms 15 are fixedly installed inside the box body 1 , and the outer side of the sealing frame 13 is tightly fitted with the inner wall of the box body 1 .

[0026] The elastic mechanism 15 provides an elastic support for the support plate 22 to stabilize the structure and has a good use effect. The sealing frame 13 can seal the support plate 22 and the box body 1, reduce vibration and gaps when introducing water flow, and avoid leakage.

[0027] In another embodiment, Figure 3 and Figure 4 As shown, the top of the filter cartridge 9 is a conical closed structure. The filter cartridge 9 includes an activated carbon adsorption layer 901 and a PM2.5 filter layer 902 . The PM2.5 filter layer 902 is located outside the activated carbon adsorption layer 901 .

[0028] The conical structure at the top of the filter cartridge 9 facilitates filtering while preventing smoke and dust from accumulating, thereby facilitating filtering and increasing efficiency, allowing dust to slide off. The PM2.5 filter layer 902 can retain dust and particulate matter on the outside, while the PM2.5 filter layer 902 absorbs odor molecules and other harmful gases in the airflow, facilitating filtration and increasing the overall effect.

[0029] In another embodiment, Figure 3 and Figure 4 As shown, the transverse elastic force support rod 11 and the oblique elastic force support rod 21 are evenly distributed on the outside of the bracket 20 in a circular shape, and the ends of the transverse elastic force support rod 11, the top elastic force support rod 18 and the oblique elastic force support rod 21 away from the bracket 20 are all attached to the inner wall of the filter cartridge 9.

[0030] The horizontal elastic support rod 11, the top elastic support rod 18 and the oblique elastic support rod 21 together with the bracket 20 support the hollow structure inside the filter cartridge 9, and prevent collapse when negative pressure suction filtration is formed at the bottom of the filter cartridge 9, and stabilize the position of the filter cartridge 9. At the same time, the connection between the filter cartridge 9 and the sealing positioning seat 19 can replace the filter cartridge 9, which is convenient for auxiliary support.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laboratory ventilation device with filtering function, comprising a housing (1), characterized in that: A mounting tube (4) is fixedly mounted on the top of the housing (1), a connecting tube (5) is threadedly connected to the inner side of the top of the mounting tube (4), the bottom of the connecting tube (5) is connected to a plurality of flow guide tubes (6), one end of each of the flow guide tubes (6) and the connecting tube (5) is fixedly mounted with a flange ring (7), a threaded plate (10) is fixedly mounted inside the mounting tube (4), a support plate (22) is movably mounted inside the housing (1), a sealing frame (13) is fixedly mounted on the outer side of the support plate (22), four elastic mechanisms (15) are fixedly mounted on the bottom of the support plate (22), a vibration motor (16) is fixedly mounted on the bottom of the support plate (22), a sealing positioning seat (19) is fixedly mounted on the top of the support plate (22), a plurality of connecting holes (14) are provided at the bottom of the inner cavity of the sealing positioning seat (19), and the sealing positioning seat (19) is provided with a plurality of connecting holes (14). ) is movably mounted on the inner side of the housing (1), a support seat (12) is movably mounted on the bottom of the inner cavity of the sealing positioning seat (19), a bracket (20) is fixedly mounted on the top of the support seat (12), a plurality of transverse elastic force support rods (11) are fixedly mounted on the outer side of the bracket (20), a plurality of oblique elastic force support rods (21) are fixedly mounted on the top of the bracket (20), a top elastic force support rod (18) is fixedly mounted on the top of the bracket (20), both sides of the housing (1) are connected with connecting pipes (2), an exhaust pump (17) is fixedly mounted inside the housing (1), an output end of the exhaust pump (17) is connected with an exhaust pipe (8), an end of the exhaust pipe (8) away from the flange ring (7) extends to the outside of the housing (1), the exhaust pump (17) is located at the bottom of the support plate (22), and a sealed housing door (3) is movably mounted on the front of the housing (1).

2. A laboratory ventilation device with filtering function according to claim 1, characterized in that: The connecting pipe (2) is provided with a valve inside, the connecting pipe (2) is connected to the top of the support plate (22), and the sealing frame (13) is provided with grooves at positions corresponding to the support plate (22) and the connecting pipe (2).

3. A laboratory ventilation device with filtering function according to claim 1, characterized in that: The mounting tube (4) is fixedly passed through the top of the box body (1) and extends to the interior of the box body (1); the communicating holes (14) are evenly distributed in a circumferential manner at the bottom of the inner cavity of the sealing positioning seat (19); and the communicating holes (14) pass through the sealing positioning seat (19) and extend to the bottom of the support plate (22).

4. A laboratory ventilation device with filtering function according to claim 1, characterized in that: The bottom ends of the four elastic mechanisms (15) are fixedly mounted inside the box body (1), and the outer side of the sealing frame (13) is tightly fitted to the inner wall of the box body (1).

5. A laboratory ventilation device with filtering function according to claim 1, characterized in that: The top end of the filter cartridge (9) is a conical closed structure. The filter cartridge (9) comprises an activated carbon adsorption layer (901) and a PM2.5 filter layer (902). The PM2.5 filter layer (902) is located outside the activated carbon adsorption layer (901).

6. A laboratory ventilation device with filtering function according to claim 1, characterized in that: The transverse elastic force support rod (11) and the oblique elastic force support rod (21) are evenly distributed on the outer side of the bracket (20) in a circular shape, and the ends of the transverse elastic force support rod (11), the top elastic force support rod (18) and the oblique elastic force support rod (21) away from the bracket (20) are all attached to the inner wall of the filter cartridge (9).

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