A laboratory fume hood with gas purification function

Abstract

This utility model discloses a laboratory fume hood with gas purification function, including a fume hood body, a rotating assembly, and a filter purification assembly. An exhaust section is located at the upper end of the fume hood body, with an exhaust port in the middle. A slot is formed on the outer side of the upper middle part of the exhaust section, and multiple elastic elements are arranged inside the slot. A sealing plate is located at the upper end of each elastic element. This laboratory fume hood with gas purification function uses a motor-driven rotating shaft to rotate a rotating plate, removing used filter purification assemblies and transferring new ones to the exhaust section, thus enabling rapid replacement of the filter purification assemblies. A circular plate is threaded into a through hole in the rotating plate by external threads. The operator can remove the filter purification assembly from the rotating plate by rotating a handle for easy disassembly and replacement. Compared to existing disassembly and replacement methods, this utility model has the advantage of rapid disassembly and replacement.

Description

Technical Field

[0001] This utility model relates to the field of laboratory fume hood technology, specifically a laboratory fume hood with gas purification function. Background Technology

[0002] A laboratory fume hood is a device used for exhaust ventilation in laboratories. Also known as a fume hood, it is one of the most common pieces of equipment in laboratories. Its primary function is exhaust. In chemical laboratories, various harmful gases, odors, moisture, and flammable, explosive, and corrosive substances are generated during experiments. To protect the safety of users and prevent the spread of pollutants into the laboratory, fume hoods are used near the source of pollution. After prolonged use, the filter screen of a laboratory fume hood becomes dirty, resulting in poor gas purification efficiency; therefore, the filter screen needs to be replaced.

[0003] Most existing laboratory fume hood filters are fixed with bolts. When replacing them, it takes time to remove the bolts before the filter can be disassembled and replaced. The disassembly and assembly of the filter is time-consuming and difficult to do quickly, resulting in poor practicality. Therefore, we propose a laboratory fume hood with gas purification function. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems mentioned above and / or existing laboratory fume hoods, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a laboratory fume hood with gas purification function. A motor drives a rotating shaft to rotate a rotating plate, removing used filter purification components and moving new ones to the exhaust section, allowing for quick replacement of the filter purification components. A circular plate, threaded into a through hole in the rotating plate by external threads, allows the operator to remove the filter purification components from the rotating plate by rotating a handle for easy disassembly and replacement. Compared to existing disassembly and replacement methods, this utility model offers the advantage of rapid disassembly and replacement.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A laboratory fume hood with gas purification function, comprising:

[0009] The fume hood body has an exhaust section at its upper end, an exhaust port in the middle of the exhaust section, a slot on the outer side of the upper middle of the exhaust section, a plurality of elastic elements inside the slot, a sealing plate at the upper end of the elastic elements, and a damper inside the elastic elements.

[0010] The rotating assembly includes a motor located on the upper end of the fume hood body on the side of the exhaust section, a rotating shaft located at the output end of the motor, and a rotating plate fixed to the end of the rotating shaft. The rotating plate has multiple through holes.

[0011] The filtration and purification assembly includes an annular plate disposed within the through hole of the rotating plate and a filter screen disposed inside the annular plate. The outer wall of the annular plate is provided with external threads, and the annular plate is threadedly connected to the through hole. A handle is fixed to the upper end of the annular plate.

[0012] In a preferred embodiment of the laboratory fume hood with gas purification function described in this utility model, the elastic element is a spring or an elastic sleeve.

[0013] As a preferred embodiment of the laboratory fume hood with gas purification function described in this utility model, a sealing ring is provided at the upper end of the sealing plate, and the sealing ring is made of rubber.

[0014] As a preferred embodiment of the laboratory fume hood with gas purification function described in this utility model, a limit rod is vertically fixed on the outer side of the lower middle part of the rotating plate, and a limit groove is opened on the upper end of the fume hood body outside the motor, with the outer wall of the limit rod fitting against the inner wall of the limit groove.

[0015] As a preferred embodiment of the laboratory fume hood with gas purification function described in this utility model, at least two through holes are provided on the rotating plate, and a filter purification component is provided in each through hole.

[0016] As a preferred embodiment of the laboratory fume hood with gas purification function described in this utility model, the annular plate is provided with two sets of filter screens inside.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This laboratory fume hood with gas purification function uses a motor-driven rotating shaft to rotate a rotating plate, removing used filter purification components from the rotating plate and moving new filter purification components to the exhaust section, thus enabling rapid replacement of the filter purification components. The annular plate is threaded into the through hole of the rotating plate by the external thread. Later, the operator can rotate the handle to remove the filter purification components from the rotating plate for disassembly and replacement. Compared with the existing disassembly and replacement methods, this utility model has the advantage of rapid disassembly and replacement. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a three-dimensional structural diagram of a laboratory fume hood with gas purification function.

[0020] Figure 2 This is a three-dimensional structural diagram of a laboratory fume hood with gas purification function according to this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of a laboratory fume hood with gas purification function according to this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of a laboratory fume hood with gas purification function according to this utility model;

[0023] In the diagram: 100, Fume hood body; 101, Exhaust section; 102, Exhaust port; 103, Slot; 104, Elastic element; 105, Sealing plate; 200, Rotating assembly; 210, Motor; 220, Rotating shaft; 230, Rotating plate; 231, Limiting rod; 300, Filter purification assembly; 310, Circular plate; 311, External thread; 312, Handle; 320, Filter screen. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] This invention provides a laboratory fume hood with gas purification function. A motor drives a rotating shaft to rotate a rotating plate, removing used filter purification components and moving new ones to the exhaust section, allowing for quick replacement of the filter purification components. A circular plate is threaded into a through hole in the rotating plate by external threads. The operator can remove the filter purification components from the rotating plate by rotating the handle for easy disassembly and replacement. Compared with existing disassembly and replacement methods, this invention has the advantage of rapid disassembly and replacement.

[0028] Figures 1-4 The diagram shown is a structural schematic of one embodiment of a laboratory fume hood with gas purification function according to this invention. Please refer to [link / reference]. Figures 1-4 The laboratory fume hood with gas purification function according to this embodiment includes a fume hood body 100, a rotating component 200 and a filter purification component 300.

[0029] The fume hood body 100 has an exhaust section 101 at its upper end, an exhaust port 102 in the middle of the exhaust section 101, and a slot 103 on the outer side of the upper middle of the exhaust section 101. Multiple elastic elements 104 are arranged inside the slot 103, and a sealing plate 105 is provided at the upper end of each elastic element 104. A damper is installed inside each elastic element 104. Preferably, in this embodiment, a sealing ring made of rubber is provided at the upper end of the sealing plate 105. The rubber sealing ring at the upper end of the sealing plate 105 seals the gap between the rotating plate 230 and the exhaust section 101, ensuring their airtightness.

[0030] The rotating assembly 200 includes a motor 210 disposed on the upper end of the fume hood body 100 on one side of the exhaust section 101, a rotating shaft 220 disposed on the output end of the motor 210, and a rotating plate 230 fixed to the end of the rotating shaft 220. The rotating plate 230 has multiple through holes. Preferably, in this embodiment, a limit rod 231 is vertically fixed to the outer side of the lower middle portion of the rotating plate 230. A limit groove is formed at the upper end of the fume hood body 100 outside the motor 210. The outer wall of the limit rod 231 fits against the inner wall of the limit groove. When the motor 210 drives the rotating shaft 220 to rotate the rotating plate 230, the limit rod 231 rotates synchronously with the rotating plate 230. During rotation, the limit rod 231 generates a certain frictional force with the limit groove, thereby ensuring the stability of the rotating plate 230 during rotation.

[0031] The filtration and purification assembly 300 includes an annular plate 310 disposed within a through hole in the rotating plate 230 and a filter screen 320 disposed inside the annular plate 310. The outer wall of the annular plate 310 is provided with external threads 311, and the annular plate 310 is threadedly connected to the through hole. A handle 312 is fixed to the upper end of the annular plate 310. Preferably, in this embodiment, the rotating plate 230 has at least two through holes, each of which is equipped with the filtration and purification assembly 300. Two sets of filter screens 320 are disposed inside the annular plate 310, which improves the purification and filtration of the gas.

[0032] Combination Figures 1-4 The laboratory fume hood with gas purification function according to this embodiment is used as follows: When it is necessary to replace the filter purification component 300 on the exhaust section 101, the motor 210 is started. The motor 210 drives the rotating shaft 220 to rotate the rotating plate 230, thereby removing the filter purification component 300 used on the rotating plate 230 and rotating the new filter purification component 300 onto the exhaust section 101, so as to quickly replace the filter purification component 300. After the replacement is completed, the fume hood body 100 can be used normally. The annular plate 310 is threaded into the through hole of the rotating plate 230 by the external thread 311. Later, the operator can remove the annular plate 310 together with the filter screen 320 from the rotating plate 230 by rotating the handle 312, so as to disassemble and replace the filter purification component 300.

[0033] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A laboratory fume hood with gas purification function, characterized in that, include: The fume hood body (100) has an exhaust section (101) at its upper end. An exhaust port (102) is provided in the middle of the exhaust section (101). A slot (103) is provided on the outer side of the middle of the upper end of the exhaust section (101). Multiple elastic elements (104) are provided inside the slot (103). A sealing plate (105) is provided at the upper end of the elastic element (104). A damper is provided inside the elastic element (104). The rotating assembly (200) includes a motor (210) disposed on the upper end of the fume hood body (100) on one side of the exhaust section (101), a rotating shaft (220) disposed on the output end of the motor (210), and a rotating plate (230) fixed to the end of the rotating shaft (220). The rotating plate (230) has multiple through holes. The filtration and purification assembly (300) includes an annular plate (310) disposed in the through hole of the rotating plate (230) and a filter screen (320) disposed inside the annular plate (310). The outer wall of the annular plate (310) is provided with an external thread (311). The annular plate (310) is threadedly connected to the through hole. A handle (312) is fixed at the upper end of the annular plate (310).

2. A laboratory fume hood with gas purification function according to claim 1, characterized in that, The elastic element (104) is a spring or an elastic sleeve.

3. A laboratory fume hood with gas purification function according to claim 1, characterized in that, The upper end of the sealing plate (105) is provided with a sealing ring, which is made of rubber.

4. A laboratory fume hood with gas purification function according to claim 1, characterized in that, A limiting rod (231) is vertically fixed on the outer side of the lower middle part of the rotating plate (230). A limiting groove is opened at the upper end of the fume hood body (100) on the outer side of the motor (210). The outer wall of the limiting rod (231) fits against the inner wall of the limiting groove.

5. A laboratory fume hood with gas purification function according to claim 1, characterized in that, The rotating plate (230) has at least two through holes, and each through hole is provided with a filter purification component (300).

6. A laboratory fume hood with gas purification function according to claim 1, characterized in that, The annular plate (310) is provided with two sets of filter screens (320).

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