Laboratory furniture cabinet with ventilation structure

Abstract

The utility model discloses a laboratory furniture cabinet with a ventilation structure, and belongs to the field of laboratories, the furniture cabinet comprises a cabinet body, inclined ventilation openings formed in the two sides of the cabinet body and an exhaust mechanism arranged on the cabinet body, and a first filter screen is arranged on the exhaust mechanism; a shielding mechanism is arranged on the cabinet body, the shielding mechanism comprises a dust shielding cover which sleeves the exhaust mechanism and is connected with the cabinet body, through air outlets are formed in the four side edges of the dust shielding cover, and second filter screens are fixedly arranged in the air outlets; dust filtering mechanisms used for filtering dust are arranged on the two sides of the cabinet body, and each dust filtering mechanism comprises a mounting groove formed in the position, corresponding to the inclined ventilation opening, of the cabinet body and a third filter screen arranged in the mounting groove. Through the design of the dust shielding mechanism, dust is effectively prevented from covering the first filter screen, the service life of the first filter screen is remarkably prolonged, long-term stable operation of the exhaust mechanism is ensured, good ventilation performance of the furniture cabinet is maintained, and the trouble and cost of frequently replacing the filter screen due to blockage of the filter screen are reduced.

Description

Technical Field

[0001] This application relates to the field of laboratory technology, specifically a laboratory furniture cabinet with a ventilation structure. Background Technology

[0002] In modern laboratory environments, proper storage of experimental equipment and samples is crucial, making ventilated laboratory furniture cabinets a key facility for ensuring the smooth conduct of experiments. Good ventilation not only effectively disperses harmful gases and odors generated during experiments but also reduces humidity, preventing equipment and samples from becoming damp and damaged, playing an indispensable role in maintaining the safety and stable operation of the laboratory.

[0003] Chinese utility model patent CN221469416U discloses a laboratory furniture cabinet with a ventilation structure. This cabinet features a unique ventilation design with angled ventilation openings on both sides for natural ventilation. This angled ventilation design not only effectively ventilates but also prevents objects from entering the cabinet, reducing the risk of them entering. The interior employs a multi-layered placement structure, with ventilated placement plates mounted on mounting rails. Objects are placed on these plates, and small holes on the plates allow for ventilation. An observation window facilitates observation of the interior. Furthermore, the device is equipped with a ventilation system that draws air through a ventilation mesh, cools and dissipates odors through the small holes in the ventilated placement plates, and finally exhausts the air from the angled ventilation openings and rectangular air outlets. The air from the rectangular air outlets further circulates through the side air ducts, forming a relatively complete ventilation circulation system.

[0004] However, in actual use, because the first filter is located at the top of the cabinet, dust easily accumulates on the top due to natural dust settling over time. This leads to a large amount of dust accumulating on the first filter. Over time, this dust gradually clogs the first filter, severely affecting its breathability and significantly reducing the ventilation efficiency of the ventilation system, making it unable to provide a consistently good ventilation effect for the laboratory cabinet.

[0005] Therefore, this application provides a laboratory furniture cabinet with a ventilation structure to solve the above problems. Utility Model Content

[0006] This application provides a laboratory furniture cabinet with a ventilation structure, which aims to solve the problems of easy clogging of filters in the ventilation structure of existing laboratory furniture cabinets.

[0007] To achieve the above objectives, this application provides the following technical solution: a laboratory furniture cabinet with a ventilation structure, comprising a cabinet body, oblique ventilation openings on both sides of the cabinet body, and an exhaust mechanism disposed on the cabinet body, wherein a first filter screen is disposed on the exhaust mechanism;

[0008] To prevent dust from covering the first filter, the cabinet is equipped with a shielding mechanism. This mechanism includes a dust cover fitted onto the exhaust mechanism and connected to the cabinet. Each of the four sides of the dust cover has a through-hole air outlet, and a second filter is fixedly installed inside each outlet. The dust cover, fitted onto the exhaust mechanism and connected to the cabinet, ensures airflow through its four outlets, while the second filter further blocks dust. When outside air flows, dust is blocked by the dust cover and cannot fall directly onto the first filter. A small amount of dust entering through the outlets is also intercepted by the second filter, thus protecting the first filter.

[0009] Preferably, to facilitate the installation of the dust cover: a positioning frame is fixedly connected to the top of the cabinet, and the dust cover is fitted onto the positioning frame, with the outer wall of the positioning frame abutting against the inner wall of the dust cover. This greatly simplifies the installation process, allowing a single person to easily complete the installation. Simultaneously, the tight contact between the positioning frame and the inner wall of the dust cover provides stable support, ensuring that the dust cover will not shake or shift during use, and guaranteeing the continuous functioning of the dust-blocking mechanism.

[0010] Preferably, to accelerate the exhaust of gas from the dust cover, the top wall of the dust cover is convex. This accelerates the exhaust of gas from the dust cover, prevents gas from accumulating inside, improves ventilation efficiency, and, in conjunction with the exhaust mechanism, more quickly removes stale air from the furniture cabinet, enhancing the overall ventilation effect.

[0011] Preferably, to accelerate the exhaust of gases from the cabinet: the exhaust mechanism includes an exhaust duct fixedly mounted on the cabinet and communicating with the cabinet interior, and a fan fixedly installed inside the exhaust duct. The first filter is fixedly installed at the end of the exhaust duct furthest from the cabinet. This actively extracts gases from inside the cabinet, powerfully accelerating air circulation and rapidly expelling harmful gases, odors, and humid air generated during experiments. This effectively improves the internal environment of the cabinet, ensuring proper storage conditions for experimental equipment and samples, and preventing equipment damage or sample deterioration due to gas accumulation.

[0012] Preferably, to prevent dust from entering the cabinet through the angled ventilation openings and covering the tools inside, dust filtration mechanisms are provided on both sides of the cabinet. Each dust filtration mechanism includes a mounting groove on the cabinet corresponding to the angled ventilation opening and a third filter screen disposed within the mounting groove. This dust filtration design improves the cleanliness of the cabinet interior, prevents dust from entering through the angled ventilation openings, avoids dust covering experimental tools and equipment, reduces the risk of equipment malfunction, ensures the accuracy and reliability of experiments, and reduces the additional workload associated with dust cleaning.

[0013] Preferably, to facilitate the installation, removal, and cleaning of the third filter: a first magnetic frame is fixedly connected within the mounting slot, and a second magnetic frame is fixedly connected to the side of the third filter closest to the first magnetic frame. The second magnetic frame and the first magnetic frame attract each other. This attraction between the second and first magnetic frames facilitates the installation and removal of the third filter without the need for additional tools. The third filter can be quickly removed from the mounting slot for cleaning or replacement at any time, ensuring that the filter always maintains good filtration performance and improving maintenance efficiency.

[0014] This application effectively prevents dust from covering the first filter screen through the design of the dust-proof mechanism, significantly extending the service life of the first filter screen, ensuring the long-term stable operation of the exhaust mechanism, maintaining good ventilation performance of the furniture cabinet, and reducing the trouble and cost of frequent filter screen replacement due to filter screen blockage.

[0015] This application improves the cleanliness of the cabinet interior through the design of the dust filtration mechanism, prevents dust from entering the cabinet through the slanted ventilation openings, avoids dust covering experimental tools and equipment, reduces the risk of equipment failure, ensures the accuracy and reliability of experiments, and reduces the extra workload caused by dust cleaning.

[0016] This application facilitates the installation and removal of the third filter screen by using the mutual attraction between the second magnetic frame and the first magnetic frame. No additional tools are required, and the third filter screen can be quickly removed from the mounting slot for cleaning or replacement at any time, ensuring that the filter screen always maintains good filtration performance and improving maintenance efficiency. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a laboratory furniture cabinet with a ventilation system.

[0018] Figure 2 for Figure 1 Cross-sectional view of the connection between the middle cabinet and the dust cover;

[0019] Figure 3 This is a schematic diagram of the dust-proof mechanism;

[0020] Figure 4 An exploded view of the cabinet and dust filtration mechanism;

[0021] Figure 5 This is a schematic diagram of the structure of the first magnetic frame and the second magnetic frame.

[0022] In the picture:

[0023] 1. Cabinet; 11. Angled ventilation opening; 12. Positioning frame; 2. Exhaust mechanism; 21. First filter; 22. Exhaust duct; 23. Fan; 3. Shielding mechanism; 31. Dust cover; 32. Air outlet; 33. Second filter; 4. Dust filtration mechanism; 41. Mounting slot; 411. First magnetic frame; 42. Third filter; 421. Second magnetic frame. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] Example 1

[0026] This embodiment provides a laboratory furniture cabinet with a ventilation structure, such as Figure 1-5 As shown, the furniture cabinet includes a cabinet body 1, oblique ventilation openings 11 on both sides of the cabinet body 1, and an exhaust mechanism 2 installed on the cabinet body 1. The exhaust mechanism 2 is equipped with a first filter screen 21.

[0027] To prevent dust from covering the first filter 21, a shielding mechanism 3 is provided on the cabinet 1 to shield the first filter 21. The shielding mechanism 3 includes a dust cover 31 that is fitted onto the exhaust mechanism 2 and connected to the cabinet 1. Each of the four sides of the dust cover 31 has a through-hole air outlet 32, and a second filter 33 is fixedly installed inside the air outlet 32. The design of the dust cover mechanism 3 effectively prevents dust from covering the first filter 21, significantly extending the service life of the first filter 21, ensuring the long-term stable operation of the exhaust mechanism 2, maintaining good ventilation performance of the furniture cabinet, and reducing the inconvenience and cost of frequent filter replacements due to filter clogging. The dust cover 31 is fitted onto the exhaust mechanism 2 and connected to the cabinet 1, and its four side air outlets 32 ensure airflow, while the second filter 33 further blocks dust. When the outside air flows, the dust is blocked by the dust cover 31 and cannot fall directly onto the first filter 21. A small amount of dust that enters through the air outlet 32 ​​will also be intercepted by the second filter 33, thus protecting the first filter 21.

[0028] To facilitate the installation of the dust cover 31: a positioning frame 12 is fixedly connected to the top of the cabinet 1, and the dust cover 31 is fitted onto the positioning frame 12, with the outer wall of the positioning frame 12 abutting against the inner wall of the dust cover 31. This greatly simplifies the installation process of the dust cover 31, allowing a single person to easily complete the installation. Simultaneously, the tight contact between the positioning frame 12 and the inner wall of the dust cover 31 provides stable support for the dust cover 31, ensuring it will not shake or shift during use and guaranteeing the continuous functioning of the dust-blocking mechanism. During installation, align the bottom of the dust cover 31 with the positioning frame 12 and fit it on. The friction between the outer wall of the positioning frame 12 and the inner wall of the dust cover 31, along with their tight fit, securely fixes the dust cover 31 to the top of the cabinet 1, eliminating the need for additional complex installation tools or cumbersome fixing steps.

[0029] To accelerate the exhaust of gas from the dust cover 31, the top wall of the dust cover 31 is convex. This accelerates the exhaust of gas from the dust cover 31, prevents gas accumulation inside the cover, improves ventilation efficiency, and works with the exhaust mechanism 2 to expel stale air from the furniture cabinet more quickly, enhancing the overall ventilation effect. Since gas tends to flow to areas of low pressure, when the exhaust mechanism 2 generates negative pressure, the gas inside the cover more easily converges towards the air outlet 32. The convex surface guides the airflow direction, reducing turbulence and stagnation within the cover, thereby accelerating the exhaust speed.

[0030] To expedite the removal of gases from cabinet 1, the exhaust system 2 includes an exhaust duct 22 fixedly mounted on cabinet 1 and connected to the interior of cabinet 1, and a fan 23 fixedly installed within the exhaust duct 22. A first filter 21 is fixedly installed at the end of the exhaust duct 22 furthest from cabinet 1. This system actively extracts gases from inside cabinet 1, powerfully accelerating airflow and rapidly removing harmful gases, odors, and humid air generated during experiments. This effectively improves the internal environment of cabinet 1, ensuring optimal storage conditions for experimental equipment and samples, and preventing equipment damage or sample deterioration due to gas accumulation. The fan 23, installed within the exhaust duct 22, generates strong suction when powered on, drawing air from inside cabinet 1 through the exhaust duct 22. The exhaust duct 22 connects to the interior of cabinet 1, providing a channel for airflow, while the first filter 21 filters impurities from the exhaust air at the exhaust vent, ensuring relatively clean exhaust air.

[0031] Example 2

[0032] Unlike Embodiment 1, to prevent dust from entering the cabinet 1 through the oblique ventilation opening 11 and covering the tools inside, dust filtration mechanisms 4 are provided on both sides of the cabinet 1. Each dust filtration mechanism 4 includes a mounting groove 41 on the cabinet 1 corresponding to the oblique ventilation opening 11 and a third filter 42 installed within the mounting groove 41. The design of the dust filtration mechanism 4 improves the cleanliness of the cabinet 1, prevents dust from entering through the oblique ventilation opening 11, avoids dust covering experimental tools and equipment, reduces the risk of equipment failure, ensures the accuracy and reliability of experiments, and reduces the extra workload caused by dust cleaning. When outside air enters the cabinet 1 through the oblique ventilation opening 11, it must first pass through the third filter 42 installed in the mounting groove 41. The fine pores of the third filter 42 effectively intercept dust particles carried in the air; only filtered clean air can enter the cabinet 1, thereby purifying the internal environment of the cabinet 1.

[0033] To facilitate the installation, removal, and cleaning of the third filter 42: a first magnetic frame 411 is fixedly connected inside the mounting slot 41, and a second magnetic frame 421 is fixedly connected to the side of the third filter 42 closest to the first magnetic frame 411. The second magnetic frame 421 and the first magnetic frame 411 attract each other. This attraction facilitates the installation and removal of the third filter 42 without the need for additional tools. The third filter 42 can be quickly removed from the mounting slot 41 for cleaning or replacement, ensuring the filter maintains good filtration performance and improving maintenance efficiency. During installation, the third filter 42 with the second magnetic frame 421 is brought close to the first magnetic frame 411 inside the mounting slot 41. The opposite magnetic poles attract each other, generating a strong magnetic force that firmly attaches the third filter 42 to the mounting slot 41, achieving a stable installation. For removal, simply overcome the magnetic force and gently pull the third filter 42 out of the mounting slot 41; the operation is simple and convenient.

[0034] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0035] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A laboratory furniture cabinet with ventilation structure, comprising a cabinet body (1), inclined ventilation openings (11) opened on both sides of the cabinet body (1), and an exhaust mechanism (2) provided on the cabinet body (1), wherein a first filter screen (21) is provided on the exhaust mechanism (2). characterized in that An obscuring mechanism (3) for shielding the first filter screen (21) is provided on the cabinet body (1), wherein the obscuring mechanism (3) comprises a dust cover (31) sleeved on the exhaust mechanism (2) and connected with the cabinet body (1), four sides of the dust cover (31) are provided with through air outlets (32), and a second filter screen (33) is fixedly arranged in the air outlet (32).

2. Laboratory furniture cabinet with ventilation structure according to claim 1, characterized in that A positioning frame (12) is fixedly connected to the top of the cabinet body (1), the dust cover (31) is sleeved on the positioning frame (12), and the outer wall of the positioning frame (12) abuts against the inner wall of the dust cover (31).

3. The laboratory casework cabinet with ventilation according to claim 1, wherein: The top wall in the dust cover (31) is in the shape of a convex arc surface.

4. The laboratory casework cabinet with ventilation according to claim 1, wherein: The exhaust mechanism (2) comprises an exhaust pipe (22) fixedly arranged on the cabinet body (1) and in communication with the cabinet body (1), and a fan (23) fixedly installed in the exhaust pipe (22), and the first filter screen (21) is fixedly installed at one end of the exhaust pipe (22) away from the cabinet body (1).

5. The laboratory casework cabinet with ventilation according to claim 1, wherein: A dust filtering mechanism (4) for filtering dust is arranged on both sides of the cabinet body (1), the dust filtering mechanism (4) comprises a mounting groove (41) opened on the cabinet body (1) corresponding to the inclined ventilation opening (11), and a third filter screen (42) arranged in the mounting groove (41).

6. Laboratory furniture cabinet with ventilation structure according to claim 5, characterized in that: A first magnetic frame (411) is fixedly connected in the mounting groove (41), a second magnetic frame (421) is fixedly connected to one side of the third filter screen (42) close to the first magnetic frame (411), and the second magnetic frame (421) and the first magnetic frame (411) are attracted to each other.

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