Ventilation cabinet with filtering mechanism

Abstract

The utility model relates to the technical field of fume cupboards, in particular to a fume cupboard with a filtering mechanism, which comprises a device body comprising a cupboard body, the surface of the cupboard body is provided with a movable sealing plate, and the top end of the cupboard body is provided with an exhaust hole; a filtering structure is connected to the inner surface of the cabinet body and comprises a fixing plate, and a filtering groove is formed in the surface of the fixing plate. According to the utility model, the limiting plate is pulled to slide in the through groove formed in the filter tank, and then the purification filter cartridge is inserted into the filter tank, so that one end of the limiting plate is positioned on the surface of the bottom end of the positioning plate, the positioning plate is limited and supported, and the filter tank and the purification filter cartridge are assembled; the exhaust fan is started to extract gas, so that the gas firstly enters the filter tank, is filtered by the purification filter cartridge and is discharged along the exhaust pipe and the exhaust hole, and the problem of complicated disassembly operation during replacement and cleaning is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fume hoods, in particular to a fume hood with a filtering mechanism. Background Art

[0002] Fume hoods are important equipment in laboratories, mainly used to protect human health and experimental safety. They prevent possible pollutants in the air, such as harmful gases, odors, chemical gases, etc. from leaking into the surrounding environment, preventing accidents caused by the spread of toxic gases and reducing the impact of laboratory pollutants on the environment and human body. In addition, fume hoods also have explosion-proof and fire-proof functions, which can curb possible risks and dangers in the experimental process.

[0003] When the existing fume hood is used, the function of the fume hood is to exhaust the pollutants that may exist in the air. The existing fume hoods generally have filters, but the filters and the fume hoods are not easy to assemble and disassemble, and the disassembly operation is complicated when replacing and cleaning the filters. Utility Model Content

[0004] The purpose of the utility model is to provide a fume hood with a filtering mechanism to solve the problem that the existing fume hoods mentioned in the above background technology generally have filters, but the filters and the fume hoods are not easy to assemble and disassemble, and the disassembly operation is complicated when replacing and cleaning the filters.

[0005] To achieve the above purpose, the utility model provides the following technical solution, a fume hood with a filtering mechanism, comprising:

[0006] The device body comprises a cabinet, a movable sealing plate is arranged on the surface of the cabinet, and an exhaust hole is arranged on the top of the cabinet;

[0007] A filtering structure is connected to the inner surface of the cabinet body, including a fixed plate, a filter slot is arranged on the surface of the fixed plate, an exhaust pipe is connected to the top of the filter slot, an exhaust fan is arranged on one side of the exhaust pipe, a purification filter cartridge is inserted inside the filter slot, a positioning plate is connected to one side of the purification filter cartridge, and the bottom end of the positioning plate is supported by a limiting plate.

[0008] Preferably, the cabinet body and the fixing plate are connected and fixed by means of screws, and the top end of the exhaust pipe is inserted into the exhaust hole.

[0009] Preferably, the purification filter cartridge is inserted into the filter tank, a positioning groove is provided on one side of the inner wall of the filter tank, and one end of the positioning plate is inserted into the positioning groove provided in the filter tank.

[0010] Preferably, a through groove is provided on one side of the inner wall of the positioning groove of the filter groove, the limiting plate is inserted into the through groove of the filter groove, and a spring is provided between the filter groove and the limiting plate for elastic connection.

[0011] Preferably, adjustment mechanisms are connected on both sides of the filter tank, and the adjustment mechanisms include a support plate, one side of the support plate is connected to a limiting block, the inner surface of the support plate is connected to a limiting slide, and the bottom end of the limiting slide is connected to a support spring.

[0012] Preferably, slide grooves are provided on both sides of the surface of the fixing plate, and the bottom end of the support spring is connected to one side of the inner wall of the slide groove provided on the fixing plate.

[0013] Preferably, the limiting slide plate is inserted into a slide groove provided in the fixed plate and is slidably connected to the fixed plate, and the limiting block cooperates with the support plate to be sleeved on one side of the outer wall of the fixed plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Pull the limit plate to make it slide in the through groove opened in the filter tank, and use the spring set between the filter tank and the limit plate to limit the limit plate, and then insert the purification filter cartridge into the filter tank, so that the positioning plate slides in the positioning groove opened in the filter tank at the same time, and then release the limit plate, and use the spring to drive the limit plate to shrink, so that one end of the limit plate is located on the bottom surface of the positioning plate, and the positioning plate is limited and supported, so as to assemble the filter tank and the purification filter cartridge. When filtering the inside of the cabinet, start the exhaust fan to extract the gas, so that the gas first enters the filter tank, and is filtered through the purification filter cartridge, and then discharged along the exhaust pipe and exhaust hole, avoiding the problem of complicated disassembly operation when replacing and cleaning.

[0016] 2. Move the filter tank downward so that it drives the support plate and the limit block connected to one side thereof to slide on one side of the cabinet outer wall, and the support plate drives the limit slide plate to slide inside the slide groove opened on the fixed plate. The limit slide plate is used to ensure that the filter tank always moves vertically, and when the limit slide plate moves downward, the support spring is squeezed to contract, so that the exhaust duct is separated from the exhaust hole. Remove the screws between the cabinet and the fixed plate, disassemble the fixed plate, and align the top of the exhaust duct with the exhaust hole during installation. Release the filter tank so that the support spring supports the limit slide plate to reset, so that the filter tank moves upward and the exhaust duct is inserted into the exhaust hole to complete the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view stereoscopic schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a front view and cutaway perspective diagram of the structure of the utility model;

[0019] Figure 3 It is a top view and a sectional three-dimensional schematic diagram of the structure of the utility model;

[0020] Figure 4 It is a partially cutaway perspective schematic diagram of the structure of the utility model from a side view;

[0021] Figure 5 It is a schematic diagram of a top view and a partially cutaway perspective view of the structure of the utility model.

[0022] In the figure: 1. device body; 11. cabinet; 12. movable cover plate; 13. exhaust hole; 2. filter structure; 21. fixed plate; 22. filter slot; 23. exhaust duct; 24. exhaust fan; 25. purification filter cartridge; 26. positioning plate; 27. limit plate; 3. adjustment mechanism; 31. support plate; 32. limit block; 33. limit slide plate; 34. support spring. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-5 , an embodiment provided by the utility model:

[0025] A fume hood with a filtering mechanism, comprising:

[0026] The device body 1 includes a cabinet 11, a movable cover plate 12 is provided on the surface of the cabinet 11, and an exhaust hole 13 is provided on the top of the cabinet 11. The internal material of the cabinet 11 is the existing technology and can be purchased on the market. It is not a technical protection point of this application, so no excessive statement is made;

[0027] A filtering structure 2 is connected to the inner surface of the cabinet 11, including a fixing plate 21, a filter slot 22 is arranged on the surface of the fixing plate 21, an exhaust pipe 23 is connected to the top of the filter slot 22, an exhaust fan 24 is arranged on one side of the exhaust pipe 23, a purification filter cartridge 25 is inserted into the filter slot 22, a positioning plate 26 is connected to one side of the purification filter cartridge 25, and a limiting plate 27 is supported at the bottom end of the positioning plate 26.

[0028] Furthermore, the cabinet body 11 and the fixing plate 21 are connected and fixed by screws, and the top end of the exhaust pipe 23 is inserted into the exhaust hole 13 , so that the filter tank 22 and the exhaust hole 13 are connected through the exhaust pipe 23 .

[0029] Furthermore, the purification filter cartridge 25 is inserted into the filter tank 22 , a positioning groove is opened on one side of the inner wall of the filter tank 22 , and one end of the positioning plate 26 is inserted into the positioning groove opened in the filter tank 22 , so that the positioning plate 26 can be positioned through the positioning groove opened in the filter tank 22 .

[0030] Furthermore, a through groove is provided on one side of the inner wall of the positioning groove of the filter groove 22, and a limit plate 27 is inserted into the through groove of the filter groove 22. A spring is provided between the filter groove 22 and the limit plate 27 for elastic connection, so that the limit plate 27 is limited by the spring provided between the filter groove 22 and the limit plate 27.

[0031] Furthermore, adjustment mechanisms 3 are connected on both sides of the filter tank 22, and the adjustment mechanisms 3 include a support plate 31, a limiting block 32 is connected to one side of the support plate 31, a limiting slide 33 is connected to the inner surface of the support plate 31, and a support spring 34 is connected to the bottom end of the limiting slide 33, so that the fixed plate 21 can be split by adjusting the position of the filter tank 22.

[0032] Furthermore, slide grooves are provided on both sides of the surface of the fixing plate 21 , and the bottom end of the support spring 34 is connected to one side of the inner wall of the slide groove provided in the fixing plate 21 , so that the bottom end of the support spring 34 is limited by the slide groove provided in the fixing plate 21 .

[0033] Furthermore, the limiting slide plate 33 is inserted into the sliding groove opened in the fixed plate 21 and is slidably connected to the fixed plate 21. The limiting block 32 cooperates with the support plate 31 to be sleeved on one side of the outer wall of the fixed plate 21, so that one side of the support plate 31 is limited by the limiting block 32.

[0034] Working principle: When filtering the inside of the fume hood, the limit plate 27 is pulled to slide in the through groove opened in the filter tank 22, and the limit plate 27 is limited by the spring set between the filter tank 22 and the limit plate 27, and then the purification filter cartridge 25 is inserted into the filter tank 22, so that the positioning plate 26 slides in the positioning groove opened in the filter tank 22 at the same time, and then the limit plate 27 is released, and the spring is used to drive the limit plate 27 to shrink, so that one end of the limit plate 27 is located on the bottom surface of the positioning plate 26, and the positioning plate 26 is limited and supported, so that the filter tank 22 and the purification filter cartridge 25 are assembled. When filtering the inside of the cabinet 11, the exhaust fan 24 is started to extract gas, so that the gas first enters the inside of the filter tank 22, and is filtered through the purification filter cartridge 25, and is discharged along the exhaust pipe 23 and the exhaust hole 13.

[0035] When the fume hood with a filtering mechanism is adjusted, the filter slot 22 is moved downward, so that it drives the support plate 31 and the limit block 32 connected to one side thereof to slide on one side of the outer wall of the cabinet body 11, and the support plate 31 drives the limit slide plate 33 to slide inside the slide groove opened on the fixed plate 21, and the limit slide plate 33 is used to ensure that the filter slot 22 always moves vertically, and when the limit slide plate 33 moves downward, the support spring 34 is squeezed to contract, so that the exhaust pipe 23 is separated from the exhaust hole 13, and the screws between the cabinet body 11 and the fixed plate 21 are removed, and the fixed plate 21 is disassembled. During installation, the top of the exhaust pipe 23 is aligned with the exhaust hole 13, and the filter slot 22 is released, so that the support spring 34 supports the limit slide plate 33 to reset, so that the filter slot 22 moves upward, and the exhaust pipe 23 is inserted into the exhaust hole 13 to complete the installation.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fume hood with a filtering mechanism, characterized in that: include: The device body (1) comprises a cabinet (11), a movable cover plate (12) is arranged on the surface of the cabinet (11), and an exhaust hole (13) is arranged on the top of the cabinet (11); The inner surface of the cabinet (11) is connected with a filtering structure (2), comprising a fixing plate (21), a filtering groove (22) is arranged on the surface of the fixing plate (21), an exhaust pipe (23) is connected to the top of the filtering groove (22), an exhaust fan (24) is arranged on one side of the exhaust pipe (23), a purification filter cartridge (25) is inserted inside the filtering groove (22), a positioning plate (26) is connected to one side of the purification filter cartridge (25), and a limiting plate (27) is supported at the bottom end of the positioning plate (26).

2. A fume hood with a filtering mechanism according to claim 1, characterized in that: The cabinet (11) and the fixing plate (21) are connected and fixed by means of screws, and the top end of the exhaust pipe (23) is inserted into the exhaust hole (13).

3. A fume hood with a filtering mechanism according to claim 1, characterized in that: The purification filter cartridge (25) is inserted into the filter tank (22), a positioning groove is provided on one side of the inner wall of the filter tank (22), and one end of the positioning plate (26) is inserted into the positioning groove provided in the filter tank (22).

4. A fume hood with a filtering mechanism according to claim 1, characterized in that: A through groove is provided on one side of the inner wall of the positioning groove provided in the filter groove (22), the limiting plate (27) is inserted into the through groove provided in the filter groove (22), and a spring is provided between the filter groove (22) and the limiting plate (27) for elastic connection.

5. A fume hood with a filtering mechanism according to claim 1, characterized in that: The filter tank (22) is connected to an adjustment mechanism (3) on both sides, the adjustment mechanism (3) comprises a support plate (31), one side of the support plate (31) is connected to a limiting block (32), the inner surface of the support plate (31) is connected to a limiting slide plate (33), and the bottom end of the limiting slide plate (33) is connected to a support spring (34).

6. A fume hood with a filtering mechanism according to claim 5, characterized in that: Slide grooves are provided on both sides of the surface of the fixed plate (21), and the bottom end of the support spring (34) is connected to one side of the inner wall of the slide groove provided on the fixed plate (21).

7. A fume hood with a filtering mechanism according to claim 5, characterized in that: The limiting slide plate (33) is inserted into the sliding groove provided in the fixing plate (21) and is slidably connected to the fixing plate (21); the limiting block (32) cooperates with the supporting plate (31) to be sleeved on one side of the outer wall of the fixing plate (21).

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