Emergency exhaust device for laboratories
By introducing a gas detection module and an adjustable louver structure into the emergency exhaust equipment for laboratory use, the problem of hazardous gas dispersion in the laboratory is solved, enabling timely exhaust and extensive collection, and adapting to different environmental needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHENZHI LAB TECH CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-09
AI Technical Summary
In existing laboratories, hazardous gases released during experiments can drift into the laboratory space, posing a danger, and there is a lack of effective emergency exhaust equipment.
An emergency exhaust device for laboratory use was designed, comprising an exhaust box, a gas detection module, an electric actuator, and a louver structure. The gas detection module monitors hazardous gases and activates the exhaust system, while the electric actuator controls the movement of the louvers and the air intake to increase the gas collection area. Combined with height adjustment and multi-directional air intake, it reduces local gas accumulation.
It enables timely exhaust of hazardous gases before they diffuse, increases the gas collection area, reduces local gas accumulation, adapts to different laboratory floor heights and equipment layouts, and improves gas detection sensitivity and equipment stability.
Smart Images
Figure CN224333044U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leak detection equipment technology, specifically an emergency exhaust device for laboratory use. Background Technology
[0002] Laboratories are professional venues for scientific research, experimental teaching, and technological development. They are typically equipped with various instruments, equipment, and experimental tables and cabinets for conducting experiments in fields such as physics, chemistry, and biology. The interior is divided into different areas according to experimental needs. Some high-level laboratories also need to meet special environmental requirements such as sterility and constant temperature and humidity. They are important carriers for promoting scientific research innovation and talent cultivation.
[0003] Exhaust systems are devices that use forced or natural airflow to expel pollutants such as polluted air, harmful gases, and dust from indoor spaces. They work in conjunction with duct systems to collect and discharge pollutants, and some of these systems are important facilities in the fields of environmental protection and safety.
[0004] Existing laboratories encounter various gases during experiments. When hazardous gases are released, they can spread throughout the laboratory space, posing a danger. Therefore, an emergency exhaust system for laboratories is proposed to address this issue. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A laboratory emergency exhaust device according to this utility model includes an exhaust box; a first air box is fixedly connected to the top of the exhaust box; a first support frame is fixedly connected to the side wall of the exhaust box; a first electric actuator is fixedly connected to the side wall of the first support frame; the first electric actuator is connected to the inside of the exhaust box; a support rod is fixedly connected to the top of the first electric actuator; multiple sets of louvers are rotatably connected to the side wall of the exhaust box; multiple sets of louvers are rotatably connected to the side wall of the support rod; a gas detection module is fixedly connected to the side wall of the exhaust box; a pair of second electric actuators are fixedly connected to the side wall of the exhaust box; the exhaust... A pair of telescopic sleeves are fixedly connected to the side wall of the box; the side wall of the telescopic sleeves is slidably connected to an air intake; the second electric actuator is connected to the top of the air intake; an exhaust pipe is fixedly connected to the top of the first air box; the gas detection module continuously monitors the gas around the exhaust box, and when a dangerous gas is detected, it drives the first air box to start, ensuring that the first air box exhausts gas in time before the harmful gas spreads. The first electric actuator drives the louvers to swing, so that the louvers increase the coverage area when drawing in gas. In conjunction with the second electric actuator pushing the air intake, air can be drawn in from multiple directions simultaneously, so that the gas collection area is increased and dangerous gases in the corners of the laboratory are drawn in, reducing the local gas accumulation.
[0007] Preferably, multiple sets of first fixing seats are fixedly connected to the side wall of the exhaust box; the first fixing seats are symmetrically arranged on the side wall of the exhaust box; a first bolt is threadedly connected to the middle of the first fixing seat; a connecting rod is fixedly connected to the first bolt and the middle of the first fixing seat; a second bolt is threadedly connected to the top of the connecting rod; the connecting rod can be aligned with the first fixing seats at different positions and adjusted to realize the adjustment of the height of the exhaust box from the ground, adapting to different laboratory floor heights or special equipment layout requirements, and reducing poor exhaust effect caused by fixed height limitations.
[0008] Preferably, a second support frame is fixedly connected to the side wall of the exhaust box; the second support frame is located near the gas detection module; a second air box is fixedly connected to the top of the second support frame; an air inlet pipe is fixedly connected to the side wall of the second air box; by periodically activating the second air box, gas from the top of the air inlet pipe is drawn in and delivered to the surface of the gas detection module. In conjunction with the self-detection of the gas detection module, the sensitivity of the gas detection module can be increased, further increasing the detection range of gases in the laboratory.
[0009] Preferably, a second fixing seat is fixedly connected to the side wall of the exhaust box; a pull rope is fixedly connected to the bottom end of the second fixing seat; a gravity block is fixedly connected to the bottom end of the pull rope; the pull rope is pulled to send a signal when the gas detection module detects dangerous gas, thereby increasing the detection of dangerous gas and ensuring the issuance of a danger signal. The gravity block restrains the pull rope with gravity, which can reduce the possibility of the pull rope swinging erroneously due to airflow during the operation of the first air box, thus preventing pulling errors.
[0010] Preferably, a first protective cover is fixedly connected to the side wall of the exhaust box; the first protective cover surrounds the gas detection module; a second protective cover is fixedly connected to the top of the exhaust pipe; by surrounding the gas detection module with the first protective cover, a barrier is formed, which can reduce the direct contact of pollutants with the gas detection module and prevent the gas detection module's detection port from being blocked, thereby increasing the stability of the gas detection module during use; the second protective cover can reduce the entry of larger pollutants into the exhaust pipe and prevent channel blockage.
[0011] Preferably, an alarm is fixedly connected to the side wall of the exhaust box; the alarm will actively sound an alarm when the gas detection module detects dangerous gas, which can quickly attract attention and make a response to the emitted dangerous gas.
[0012] The advantages of this utility model are:
[0013] 1. The laboratory emergency exhaust device described in this utility model continuously monitors the gas around the exhaust box through a gas detection module. When a dangerous gas is detected, the first air box is activated to ensure timely exhaust before the harmful gas spreads. The first electric actuator drives the louvers to swing, increasing the coverage area when the louvers draw in gas. In conjunction with the second electric actuator, the air inlet can be pushed to draw in air simultaneously from multiple directions, increasing the gas collection area and drawing in dangerous gases from corners of the laboratory, thus reducing local gas accumulation.
[0014] 2. The laboratory emergency exhaust device described in this utility model can be aligned with the first fixed seat at different positions via a connecting rod, and the height of the exhaust box from the ground can be adjusted to adapt to different laboratory floor heights or special equipment layout requirements, reducing poor exhaust effect caused by fixed height limitations. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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.
[0016] Figure 1 This is a schematic diagram of the main body of this utility model;
[0017] Figure 2 This is a schematic diagram of the pull rope structure in this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the first protective cover in this utility model;
[0019] Figure 4 This is a schematic diagram of the connecting rod in this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of the louvers in this utility model.
[0021] In the diagram: 1. Exhaust box; 11. First air box; 12. First support frame; 13. First electric actuator; 14. Support rod; 15. Louver; 16. Gas detection module; 17. Second electric actuator; 18. Telescopic sleeve; 19. Air intake; 110. Exhaust pipe; 2. First fixed base; 21. First bolt; 22. Connecting rod; 23. Second bolt; 3. Second support frame; 31. Second air box; 32. Air inlet pipe; 4. Second fixed base; 41. Pull rope; 42. Gravity block; 5. First protective cover; 51. Second protective cover; 6. Alarm. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] Specific implementation examples are given below.
[0024] like Figures 1 to 5 As shown in the figure, an emergency exhaust device for laboratory use according to an embodiment of the present invention includes an exhaust box 1; a first air box 11 is fixedly connected to the top of the exhaust box 1; a first support frame 12 is fixedly connected to the side wall of the exhaust box 1; a first electric actuator 13 is fixedly connected to the side wall of the first support frame 12; the first electric actuator 13 is connected to the interior of the exhaust box 1; a support rod 14 is fixedly connected to the top of the first electric actuator 13; multiple sets of louvers 15 are rotatably connected to the side wall of the exhaust box 1; multiple sets of louvers 15 are rotatably connected to the side wall of the support rod 14; the exhaust box... A gas detection module 16 is fixedly connected to the side wall of the exhaust box 1; a pair of second electric actuators 17 are fixedly connected to the side wall of the exhaust box 1; a pair of telescopic sleeves 18 are fixedly connected to the side wall of the exhaust box 1; an air intake 19 is slidably connected to the side wall of the telescopic sleeve 18; the second electric actuators 17 are connected to the top of the air intake 19; an exhaust pipe 110 is fixedly connected to the top of the first air box 11; during operation, the exhaust box 1 can be installed above the laboratory. After the exhaust box 1 is installed, the gas detection module 16 can continuously monitor the surrounding gas. When a hazardous gas is present in the laboratory, the gas detection module 16 will activate. After monitoring by module 16, the first air box 11 is activated. The first air box 11 draws in air around the exhaust box 1 through the gaps in the louvers 15. Simultaneously, the first electric actuator 13 causes the louvers 15 to swing, drawing in the gas around the exhaust box 1. When the gas detection module 16 detects a hazardous gas, a pair of second electric actuators 17 fixed to the side wall of the exhaust box 1 cause the air inlet 19 to extend and retract in the middle of the telescopic sleeve 18. The first air box 11 can draw in hazardous gas from multiple directions, including the air inlet 19 and the louvers 15. The gas drawn in by 11 can be discharged from the exhaust pipe 110; the gas detection module 16 continuously monitors the gas around the exhaust box 1, and when a dangerous gas is detected, it drives the first air box 11 to start, ensuring that the exhaust process of the first air box 11 is completed in time before the harmful gas spreads. The first electric push rod 13 drives the louver 15 to swing, so that the louver 15 increases the coverage area when drawing in gas. In conjunction with the second electric push rod 17, the air inlet 19 can be pushed to draw in air from multiple directions simultaneously, so that the gas collection area is increased and dangerous gases in the corners of the laboratory are drawn in, reducing the local gas accumulation.
[0025] like Figure 1 and Figure 4As shown, the exhaust box 1 has multiple sets of first fixing seats 2 fixedly connected to its side wall; the first fixing seats 2 are symmetrically arranged on the side wall of the exhaust box 1; a first bolt 21 is threadedly connected to the middle of the first fixing seat 2; a connecting rod 22 is fixedly connected to the first bolt 21 and the middle of the first fixing seat 2; a second bolt 23 is threadedly connected to the top of the connecting rod 22; during operation, the connecting rod 22 can be installed on the top of the laboratory through the second bolt 23. Then, when the exhaust box 1 is installed as a whole, the hole in the middle of the connecting rod 22 can be aligned with the first fixing seat 2, and the first bolt 21 can be screwed into the middle of the first fixing seat 2 to suspend the exhaust box 1 as a whole. The connecting rod 22 can be aligned with the first fixing seat 2 at different heights, so that the height of the exhaust box 1 from the ground can be adjusted during installation; by aligning the connecting rod 22 with the first fixing seat 2 at different positions, the height of the exhaust box 1 from the ground can be adjusted to adapt to different laboratory floor heights or special equipment layout requirements, reducing poor exhaust effect caused by fixed height limitations.
[0026] like Figures 1 to 3 As shown, a second support frame 3 is fixedly connected to the side wall of the exhaust box 1; the second support frame 3 is located near the gas detection module 16; a second air box 31 is fixedly connected to the top of the second support frame 3; an air inlet pipe 32 is fixedly connected to the side wall of the second air box 31; during operation, when the gas detection module 16 detects the surrounding gas, the air inlet pipe 32 can be pulled to a certain position, and then the second air box 31 will start at regular intervals to draw in the gas at the top of the air inlet pipe 32 and deliver it from the second air box 31 to the vicinity of the detection port of the gas detection module 16, so as to detect the gas around the laboratory; by the second air box 31 starting at regular intervals to draw in the gas at the top of the air inlet pipe 32 and deliver it to the surface of the gas detection module 16, in conjunction with the self-detection of the gas detection module 16, the sensitivity of the gas detection module 16 can be increased, further increasing the detection of gas in the laboratory area.
[0027] like Figure 2 As shown, a second fixed seat 4 is fixedly connected to the side wall of the exhaust box 1; a pull rope 41 is fixedly connected to the bottom end of the second fixed seat 4; a gravity block 42 is fixedly connected to the bottom end of the pull rope 41; during operation, when the gas detection module 16 detects a dangerous gas, the pull rope 41 can be pulled to send a danger signal, and the gravity block 42 can apply gravity to the pull rope 41 so that the pull rope 41 will not swing violently due to the airflow; by pulling the pull rope 41 to send a signal when the gas detection module 16 detects a dangerous gas, the detection of dangerous gas is increased, and the issuance of the danger signal is ensured. The gravity block 42 restrains the pull rope 41 by gravity, which can reduce the accidental swinging of the pull rope 41 caused by the airflow when the first air box 11 is running, thus preventing pulling errors.
[0028] like Figure 1 and Figure 3As shown, a first protective cover 5 is fixedly connected to the side wall of the exhaust box 1; the first protective cover 5 surrounds the gas detection module 16; a second protective cover 51 is fixedly connected to the top of the exhaust pipe 110; during operation, when the gas detection module 16 is detecting gas, the first protective cover 5 can protect the area around the alarm 6, preventing contaminants from contacting the gas detection module 16, and the second protective cover 51 can block contaminants from entering from the exhaust pipe 110; by surrounding the gas detection module 16 with the first protective cover 5, a barrier is formed, which can reduce the direct contact of contaminants with the gas detection module 16, thus reducing the blockage of the gas detection module 16's detection port and increasing the stability of the gas detection module 16 during use; the second protective cover 51 can reduce the entry of larger contaminants into the exhaust pipe 110, thus reducing the channel blockage.
[0029] like Figure 4 As shown, an alarm 6 is fixedly connected to the side wall of the exhaust box 1; during operation, when the gas detection module 16 detects a dangerous gas, the alarm 6 can sound an alarm to remind the user; by actively sounding an alarm when the gas detection module 16 detects a dangerous gas, the alarm 6 can quickly attract attention and react to the emitted dangerous gas.
[0030] Working principle: The exhaust box 1 can be installed above the laboratory. After installation, the gas detection module 16 continuously monitors the surrounding gas. When a hazardous gas is detected in the laboratory, the gas detection module 16 activates the first air box 11. The first air box 11 draws in the air around the exhaust box 1 through the gaps in the louvers 15. Simultaneously, the first electric actuator 13 drives the louvers 15 to swing, drawing in the gas around the exhaust box 1. When the gas detection module 16 detects a hazardous gas, a pair of second electric actuators 17 fixed to the side wall of the exhaust box 1 cause the air inlet 19 to extend and retract in the middle of the telescopic sleeve 18. The first air box 11 can draw in the hazardous gas from multiple directions, including the air inlet 19 and the louvers 15. The gas drawn in by the first air box 11 can be discharged from the exhaust pipe 110. The connecting rod 22 can be installed on the top of the laboratory using the second bolt 23. When installing the exhaust box 1 as a whole, the hole in the middle of the connecting rod 22 can be aligned with the first fixed seat 2, and then the first bolt 21 can be screwed into the first fixed seat 2. The exhaust box 1 is suspended in the middle of the fixed seat 2. The connecting rod 22 can be aligned with the first fixed seat 2 at different heights, so that the height of the exhaust box 1 from the ground can be adjusted during installation. When the gas detection module 16 detects the surrounding gas, the air inlet pipe 32 can be pulled to a certain position. Then the second air box 31 will start at regular intervals to draw in the gas at the top of the air inlet pipe 32 and deliver it from the second air box 31 to the vicinity of the detection port of the gas detection module 16. It can detect the gas around the laboratory. When the gas detection module 16 detects a dangerous gas, the pull rope 41 can be pulled to issue a danger signal. The gravity block 42 can apply gravity to the pull rope 41 so that the pull rope 41 will not swing violently due to the airflow. When the gas detection module 16 detects gas, the first protective cover 5 can protect the area around the alarm 6 to prevent pollutants from contacting the gas detection module 16. The second protective cover 51 can block pollutants from entering from the exhaust pipe 110. When the gas detection module 16 detects a dangerous gas, the alarm 6 can sound an alarm to remind the user.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A laboratory emergency exhaust device, characterized in that: Includes an exhaust box (1); a first air box (11) is fixedly connected to the top of the exhaust box (1); a first support frame (12) is fixedly connected to the side wall of the exhaust box (1); a first electric actuator (13) is fixedly connected to the side wall of the first support frame (12); the first electric actuator (13) is connected to the inside of the exhaust box (1); a support rod (14) is fixedly connected to the top of the first electric actuator (13); multiple sets of louvers (15) are rotatably connected to the side wall of the exhaust box (1); the support rod (14) is... The wall is rotatably connected to multiple sets of louvers (15); a gas detection module (16) is fixedly connected to the side wall of the exhaust box (1); a pair of second electric push rods (17) are fixedly connected to the side wall of the exhaust box (1); a pair of telescopic sleeves (18) are fixedly connected to the side wall of the exhaust box (1); an air intake (19) is slidably connected to the side wall of the telescopic sleeve (18); the second electric push rod (17) is connected to the top of the air intake (19); an exhaust pipe (110) is fixedly connected to the top of the first air box (11).
2. The laboratory emergency exhaust device according to claim 1, characterized in that: The exhaust box (1) has multiple sets of first fixing seats (2) fixedly connected to its side wall; the first fixing seats (2) are symmetrically arranged on the side wall of the exhaust box (1); the first fixing seat (2) is threaded with a first bolt (21) in the middle; the first bolt (21) and the first fixing seat (2) are fixedly connected with a connecting rod (22) in the middle; the top of the connecting rod (22) is threaded with a second bolt (23).
3. The laboratory emergency exhaust device according to claim 2, characterized in that: The exhaust box (1) has a second support frame (3) fixedly connected to its side wall; the second support frame (3) is located near the gas detection module (16); the top of the second support frame (3) has a second air box (31) fixedly connected to its top; the side wall of the second air box (31) has an air inlet pipe (32) fixedly connected to its side wall.
4. A laboratory emergency exhaust device according to claim 3, characterized in that: The exhaust box (1) has a second fixed seat (4) fixed to its side wall; the bottom of the second fixed seat (4) has a pull rope (41) fixed to its bottom end; the bottom of the pull rope (41) has a gravity block (42) fixed to its bottom end.
5. A laboratory emergency exhaust device according to claim 4, characterized in that: The exhaust box (1) has a first protective cover (5) fixedly attached to its side wall; the first protective cover (5) surrounds the gas detection module (16); and the exhaust pipe (110) has a second protective cover (51) fixedly attached to its top.
6. A laboratory emergency exhaust device according to claim 5, characterized in that: An alarm (6) is fixedly connected to the side wall of the exhaust box (1).