Leakage-proof ventilation device for laboratory

Abstract

The utility model discloses a laboratory leakproof ventilation device which comprises a ventilation mechanism, a leakproof filtering mechanism and a limiting mechanism, the leakproof filtering mechanism is fixedly connected to the interior of the ventilation mechanism, the limiting mechanism is fixedly connected to the bottom of the ventilation mechanism, and the ventilation mechanism comprises a ventilation pipe body. A partition plate is fixedly connected to the interior of the ventilation pipe body, a first filter screen is fixedly connected to the left side of the ventilation pipe body, a second filter screen is fixedly connected to the right side of the ventilation pipe body, a filter frame is fixedly connected to the bottom of the partition plate, a purifier is arranged on the right side of the filter frame in a three-dimensional mode, and the right side of the purifier communicates with an exhaust pipe. And the anti-leakage filtering mechanism comprises a connecting plate. According to the utility model, the function of conveniently dismounting the filter plate for replacement is added, so that the filter plate can be mounted and dismounted, and the situation that the replacement of the filter plate wastes time and labor and cannot bring convenience to a user is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-leakage ventilation, in particular to a laboratory anti-leakage ventilation device. Background Technique

[0002] Anti-leakage ventilation is an important safety measure aimed at preventing and controlling the leakage of harmful substances through an effective ventilation system, thereby protecting the health and safety of personnel and preventing environmental pollution. The following is a detailed explanation and summary of anti-leakage ventilation: I. Definition and Purpose Anti-leakage ventilation is to ensure that when harmful substances leak, the leaked substances can be quickly discharged outdoors through a reasonable ventilation system, while introducing fresh air to maintain the indoor air quality and avoid the accumulation and diffusion of harmful substances. Its main purpose is to reduce the impact of leakage accidents on personnel and the environment and improve safety. II. Key Components Ventilation System: It includes equipment such as air inlets, air outlets, ventilation ducts, and fans for realizing the circulation and exchange of indoor and outdoor air. Leakage Detection Device: It can real-time monitor the concentration of harmful substances in the indoor air. Once it exceeds the safety threshold, it immediately triggers an alarm and starts the ventilation system. Control System: According to the signal of the leakage detection device, it automatically or manually controls the operation of the ventilation system to ensure a quick response when leakage occurs.

[0003] According to the patent number disclosed on the Chinese Patent Network: CN219623432U, the utility model discloses a laboratory anti-leakage ventilation duct, which includes an outer duct body with an inner duct body built therein. A predetermined distance is maintained between the inner duct body and the outer duct body to form a clamping cavity, and a hemp rope ring is spirally wound on the inner wall of the outer duct body. The laboratory anti-leakage ventilation duct provided by this utility model has a simple structure. Its design adopts a double-layer pipe design, keeps a distance between the inner duct body and the outer duct body, and increases cold resistance by adding a hemp rope ring on the inner wall of the outer duct body to reduce the influence of the external low temperature on the inner duct body.

[0004] When the laboratory ventilation works, an anti-leakage ventilation duct is needed. However, most of the existing anti-leakage ventilation ducts on the market need to frequently replace the filter plate during long-term use. The filter plate is usually fixed by multiple bolts, resulting in time-consuming and laborious replacement of the filter plate, which cannot bring convenience to users and affects the efficient use of the anti-leakage ventilation duct.

[0005] Therefore, it is necessary to design and transform the anti-leakage ventilation duct to effectively prevent the phenomenon that the replacement of its filter plate is time-consuming and laborious and cannot bring convenience to users. Content of the Utility Model

[0006] To solve the problems raised in the above-mentioned background art, the purpose of the present utility model is to provide a laboratory anti-leakage ventilation device, which has the advantage of being convenient for disassembling and replacing the filter plate, and solves the problem that it is time-consuming and laborious to replace the filter plate and cannot bring convenience to users.

[0007] To achieve the above purpose, the present utility model provides the following technical solutions: a laboratory anti-leakage ventilation device, comprising:

[0008] A ventilation mechanism;

[0009] An anti-leakage filtering mechanism, which is fixedly connected inside the ventilation mechanism;

[0010] A limiting mechanism, which is fixedly connected to the bottom of the ventilation mechanism;

[0011] The ventilation mechanism includes a ventilation pipe body, a partition is fixedly connected inside the ventilation pipe body, a first filter screen is fixedly connected to the left side of the ventilation pipe body, a second filter screen is fixedly connected to the right side of the ventilation pipe body, a filter frame is fixedly connected to the bottom of the partition, a purifier is provided on the right side of the filter frame, and an exhaust pipe is communicated with the right side of the purifier.

[0012] Preferably, the anti-leakage filtering mechanism includes a connecting plate, the connecting plate is clamped inside the filter frame, a sealing plate is fixedly connected to the bottom of the connecting plate, a support plate is fixedly connected to the bottom of the sealing plate, an adsorption filter screen is fixedly connected to the left side of the top of the connecting plate, a polyester fiber filter screen is fixedly connected to the center of the top of the connecting plate, and a carbon fiber filter plate is fixedly connected to the right side of the top of the connecting plate.

[0013] Preferably, the limiting mechanism includes a support rod, the support rod is movably connected to the bottom of the ventilation pipe body through a bearing, a first limiting block is fixedly connected to the bottom of the support rod, a second limiting block is fixedly connected to the surface of the support rod, and a limiting plate is fixedly connected to the surface of the support rod.

[0014] Preferably, a flow guiding plate is fixedly connected to the bottom of the inner wall of the ventilation pipe body, and the flow guiding plate is used in cooperation with the ventilation pipe body.

[0015] Preferably, a friction pad is fixedly connected to the back of the limiting plate, and the friction pad is used in cooperation with the limiting plate.

[0016] Preferably, an anti-rust coating is provided on the surface of the ventilation pipe body, and the anti-rust coating is used in cooperation with the ventilation pipe body.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. The utility model increases the functionality of facilitating the disassembly and replacement of the filter plate, enabling the installation and disassembly of the filter plate, and preventing the situation where it is time-consuming and laborious to replace the filter plate and thus inconvenient for users.

[0019] 2. Through the setting of the anti-leakage filtering mechanism, the utility model can filter the gas entering the ventilation pipe body and prevent the leakage of harmful gases.

[0020] 3. Through the setting of the limiting mechanism, the utility model can limit the support plate and restrict the moving range of the support plate.

[0021] 4. Through the setting of the flow guiding plate, the utility model can guide the gas inside the ventilation pipe body and improve the working efficiency of the ventilation pipe body.

[0022] 5. Through the setting of the friction pad, the utility model can effectively increase the friction between the limiting plate and the support plate and improve the stability of the limiting plate.

[0023] 6. Through the setting of the anti-rust coating, the utility model can protect the ventilation pipe body and improve the service life of the ventilation pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the utility model;

[0025] Figure 2 is a cross-sectional view of the ventilation pipe body of the utility model;

[0026] Figure 3 is a front view of the limiting plate of the utility model;

[0027] Figure 4 is a cross-sectional view of the filter frame of the utility model.

[0028] In the figure: 1. Ventilation mechanism; 11. Ventilation pipe body; 12. Partition board; 13. First filter screen; 14. Second filter screen; 15. Filter frame; 16. Purifier; 17. Exhaust pipe; 2. Anti-leakage filtering mechanism; 21. Connecting plate; 22. Sealing plate; 23. Support plate; 24. Adsorption filter screen; 25. Polyester fiber filter screen; 26. Carbon fiber filter plate; 3. Limiting mechanism; 31. Support rod; 32. First limiting block; 33. Second limiting block; 34. Limiting plate; 4. Flow guiding plate; 5. Friction pad; 6. Anti-rust coating. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] As Figures 1 to 4 shown, a laboratory anti-leakage ventilation device provided by the present utility model includes:

[0031] A ventilation mechanism 1;

[0032] An anti-leakage filtering mechanism 2, which is fixedly connected inside the ventilation mechanism 1;

[0033] A limiting mechanism 3, which is fixedly connected to the bottom of the ventilation mechanism 1;

[0034] The ventilation mechanism 1 includes a ventilation pipe body 11, a partition plate 12 is fixedly connected inside the ventilation pipe body 11, a first filter screen 13 is fixedly connected to the left side of the ventilation pipe body 11, a second filter screen 14 is fixedly connected to the right side of the ventilation pipe body 11, a filter frame 15 is fixedly connected to the bottom of the partition plate 12, a purifier 16 is provided on the right side of the filter frame 15, and an exhaust pipe 17 is communicated with the right side of the purifier 16.

[0035] Referring to Figure 4 , the anti-leakage filtering mechanism 2 includes a connecting plate 21, the connecting plate 21 is clamped inside the filter frame 15, a sealing plate 22 is fixedly connected to the bottom of the connecting plate 21, a support plate 23 is fixedly connected to the bottom of the sealing plate 22, an adsorption filter screen 24 is fixedly connected to the left side of the top of the connecting plate 21, a polyester fiber filter screen 25 is fixedly connected to the center of the top of the connecting plate 21, and a carbon fiber filter plate 26 is fixedly connected to the right side of the top of the connecting plate 21.

[0036] As a technical optimization solution of the present utility model, through the setting of the anti-leakage filtering mechanism 2, the gas entering the ventilation pipe body 11 can be filtered to prevent the leakage of harmful gases.

[0037] Referring to Figure 3 , the limiting mechanism 3 includes a support rod 31, the support rod 31 is movably connected to the bottom of the ventilation pipe body 11 through a bearing, a first limiting block 32 is fixedly connected to the bottom of the support rod 31, a second limiting block 33 is fixedly connected to the surface of the support rod 31, and a limiting plate 34 is fixedly connected to the surface of the support rod 31.

[0038] As a technical optimization solution of the present utility model, through the setting of the limiting mechanism 3, the support plate 23 can be limited, and the moving range of the support plate 23 is restricted.

[0039] Reference Figure 2 , a flow guide plate 4 is fixedly connected to the bottom of the inner wall of the ventilation pipe body 11, and the flow guide plate 4 is used in cooperation with the ventilation pipe body 11.

[0040] As a technical optimization scheme of the present utility model, through the arrangement of the flow guide plate 4, the gas inside the ventilation pipe body 11 can be guided, improving the working efficiency of the ventilation pipe body 11.

[0041] Reference Figure 3 , a friction pad 5 is fixedly connected to the back of the limit plate 34, and the friction pad 5 is used in cooperation with the limit plate 34.

[0042] As a technical optimization scheme of the present utility model, through the arrangement of the friction pad 5, the friction between the limit plate 34 and the support plate 23 can be effectively increased, improving the stability of the limit plate 34.

[0043] Reference Figure 1 , an anti-rust coating 6 is provided on the surface of the ventilation pipe body 11, and the anti-rust coating 6 is used in cooperation with the ventilation pipe body 11.

[0044] As a technical optimization scheme of the present utility model, through the arrangement of the anti-rust coating 6, the ventilation pipe body 11 can be protected, improving the service life of the ventilation pipe body 11.

[0045] The working principle and usage process of the present utility model: When in use, first, the gas inside the laboratory is discharged through the ventilation pipe body 11, then filtered for debris and large-particle dust through the first filter net 13, the gas is guided by the flow guide plate 4, filtered through the adsorption filter net 24, the polyester fiber filter net 25 and the carbon fiber filter plate 26, and then purified through the purifier 16 after filtration, and the purified gas is discharged through the exhaust pipe 17 to prevent the leakage of harmful gases. After the work is completed, the user rotates the first limit block 32, the first limit block 32 drives the support rod 31 to rotate, the support rod 31 drives the limit plate 34 to rotate, the limit plate 34 releases the limit on the support plate 23, and the support plate 23, the sealing plate 22 and the connecting plate 21 are removed for maintenance work.

[0046] In summary: The laboratory anti-leakage ventilation device, by increasing the functionality of facilitating the disassembly and replacement of the filter plate, enables it to have the effect of installing and disassembling the filter plate, preventing the situation where the replacement of the filter plate is time-consuming and laborious and cannot bring convenience to the user, and solving the problem that the replacement of the filter plate is time-consuming and laborious and cannot bring convenience to the user.

[0047] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laboratory anti-leakage ventilation device, characterized in that: include: Ventilation mechanism (1); An anti-leakage filtering mechanism (2), wherein the anti-leakage filtering mechanism (2) is fixedly connected to the interior of the ventilation mechanism (1); A limiting mechanism (3), wherein the limiting mechanism (3) is fixedly connected to the bottom of the ventilation mechanism (1); The ventilation mechanism (1) comprises a ventilation pipe body (11), a partition (12) is fixedly connected inside the ventilation pipe body (11), a first filter (13) is fixedly connected to the left side of the ventilation pipe body (11), a second filter (14) is fixedly connected to the right side of the ventilation pipe body (11), a filter frame (15) is fixedly connected to the bottom of the partition (12), a purifier (16) is three-dimensionally provided on the right side of the filter frame (15), and an exhaust pipe (17) is connected to the right side of the purifier (16).

2. A laboratory anti-leakage ventilation device according to claim 1, characterized in that: The anti-leakage filtering mechanism (2) comprises a connecting plate (21), the connecting plate (21) being clamped inside the filtering frame (15), the bottom of the connecting plate (21) being fixedly connected to a sealing plate (22), the bottom of the sealing plate (22) being fixedly connected to a supporting plate (23), the left side of the top of the connecting plate (21) being fixedly connected to an adsorption filtering net (24), the center of the top of the connecting plate (21) being fixedly connected to a polyester fiber filtering net (25), and the right side of the top of the connecting plate (21) being fixedly connected to a carbon fiber filtering plate (26).

3. A laboratory anti-leakage ventilation device according to claim 2, characterized in that: The limiting mechanism (3) comprises a support rod (31), the support rod (31) being movably connected to the bottom of the ventilation pipe body (11) via a bearing, the bottom of the support rod (31) being fixedly connected to a first limiting block (32), the surface of the support rod (31) being fixedly connected to a second limiting block (33), and the surface of the support rod (31) being fixedly connected to a limiting plate (34).

4. A laboratory anti-leakage ventilation device according to claim 3, characterized in that: A guide plate (4) is fixedly connected to the bottom of the inner wall of the ventilation tube body (11), and the guide plate (4) is used in conjunction with the ventilation tube body (11).

5. A laboratory anti-leakage ventilation device according to claim 4, characterized in that: A friction pad (5) is fixedly connected to the back of the limiting plate (34), and the friction pad (5) is used in conjunction with the limiting plate (34).

6. A laboratory anti-leakage ventilation device according to claim 5, characterized in that: The surface of the ventilation pipe body (11) is provided with an anti-rust coating (6), and the anti-rust coating (6) is used in conjunction with the ventilation pipe body (11).

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