Laboratory exhaust cabinet with automatic adjusting door
By introducing an automatic regulating door and a combination of multiple sensing modules into the laboratory fume hood, the safety hazard of requiring manual or motor-assisted adjustment of the regulating door in existing technologies has been solved, realizing contactless and intelligent operation and improving safety and operability.
Patent Information
- Application Number
- CN202422906561.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The adjustable doors of existing laboratory fume hoods require manual or motor-assisted adjustment, posing safety hazards and making it difficult to achieve contactless operation.
It adopts an automatic adjustment door design, combining a bellows, a vertically movable adjustment door, a drive mechanism, a central controller, and various sensing modules to achieve contactless control, including human body sensing, gesture recognition, foreign object sensing, temperature and humidity monitoring, etc. The central controller coordinates the work of each module.
It achieves safe and intelligent operation without manual intervention, improving safety and operability, reducing the risks of contact operation, and embodying the concept of intelligent equipment.
Smart Images
Figure CN223875758U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a ventilation equipment technical field, concretely relates to a laboratory exhaust hood of automatic regulation door. BACKGROUND
[0002] The laboratory exhaust hood is a laboratory equipment used to protect experimental personnel from harmful gases, vapors, dust and other pollutants. Its main functions include:
[0003] 1. Discharge function: can effectively discharge harmful gases, odors, moisture, flammable and explosive and corrosive substances generated during the experiment, prevent these substances from spreading to the laboratory environment.
[0004] 2. Anti-backflow function: can prevent harmful substances that have been discharged into the exhaust hood from flowing back into the laboratory, protecting the air quality of the laboratory.
[0005] 3. Isolation function: through physical isolation, the experimental personnel is isolated from the harmful substances generated during the experiment, reducing the risk of direct contact.
[0006] 4. Supplement function: in order to maintain the airflow stability in the laboratory, the exhaust hood will also introduce a certain amount of fresh air to compensate for the air loss caused by exhaust.
[0007] 5. Wind speed control function: can adjust the wind speed of the exhaust hood according to different experimental needs, to ensure effective gas discharge while saving energy.
[0008] 6. Heat resistance and acid and alkali corrosion resistance: since some experiments may involve high temperature or strong acid and alkali and other corrosive substances, the design material of the exhaust hood needs to have good heat resistance and corrosion resistance.
[0009] In the prior art, the adjustment door is mostly adjusted manually or by motor-assisted adjustment to realize the control of the adjustment door. Experimental personnel need to perform some contact operation to realize the adjustment, which inevitably makes the experimental personnel contact the harmful substances, having certain safety hazards.
[0010] Therefore, it is necessary to design a laboratory exhaust hood with automatic adjustment door. UTILITY MODEL CONTENT
[0011] In view of the defects in the prior art, the utility model provides a laboratory exhaust hood with automatic adjustment door.
[0012] The utility model discloses a technical scheme is: the laboratory exhaust hood of automatic adjusting door, including the cabinet, be provided with the wind box in the upper portion of the cabinet, be provided with the up-and-down mobile adjusting door on one side of wind box, this up-and-down mobile adjusting door is equipped with the drive mechanism, be provided with the exhaust fan on the top of wind box, be provided with the central controller and human body induction module in the lower portion of the cabinet, human body induction module, exhaust fan and drive mechanism all are connected with this central controller.
[0013] For better implementation of the utility model, gesture recognition module is arranged below the up-and-down mobile adjusting door on the cabinet, and the gesture recognition module is connected with the central controller.
[0014] For better implementation of the utility model, a foreign matter sensing module is arranged below the up-and-down mobile adjusting door, and the foreign matter sensing module is connected with the central controller.
[0015] For better implementation of the utility model, a temperature and humidity monitoring module is further arranged on the cabinet, and the temperature and humidity monitoring module is connected with the central controller.
[0016] For better implementation of the utility model, a spray port and an air outlet are further arranged on the cabinet, and corresponding spray electromagnetic valves and air outlet electromagnetic valves are matched, and the spray electromagnetic valves and air outlet electromagnetic valves are connected with the central controller.
[0017] For better implementation of the utility model, a foot trigger switch is arranged at the bottom of the cabinet, and the foot trigger switch is connected with the central controller.
[0018] For better implementation of the utility model, an air switch and a socket are arranged on the cabinet.
[0019] For better implementation of the utility model, an indicator light module is arranged above the up-and-down mobile adjusting door on the cabinet, and the indicator light module is connected with the central controller.
[0020] The utility model discloses the laboratory exhaust hood of automatic adjusting door, through the cooperation of cabinet, wind box, up-and-down mobile adjusting door, drive mechanism, exhaust fan, central controller and human body induction module, when human body induction module senses human body, signal is delivered to central controller, central controller controls exhaust fan and drive mechanism to open, and drive mechanism drives up-and-down mobile adjusting door to move up and open, and exhaust fan extracts harmful air in laboratory and removes, and manual control of staff is not needed, has the advantages such as simple structure, convenient control, avoids contact type operation, improves safety, realizes the intelligent auxiliary function of equipment, and the wisdom equipment concept of people-oriented is embodied from great improvement of usability, operability, safety, and the wisdom equipment concept of people-oriented is embodied from great improvement of usability, operability, safety. DRAWINGS
[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.
[0022] Figure 1 A structural schematic view of a laboratory fume hood with an automatic adjusting door according to the present application;
[0023] In the drawings, 1 is a cabinet body, 2 is an exhaust fan, 3 is an indicator light module, 4 is an up-down moving adjusting door, 5 is a central controller, 6 is an air switch, 7 is a human body induction module, 8 is a spray opening, 9 is an air outlet, 10 is a foreign matter induction module, 11 is a gesture recognition module, 12 is a foot trigger switch, 13 is a driving mechanism, and 14 is a socket. DETAILED DESCRIPTION
[0024] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.
[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all the embodiments. The components of the embodiments of the present disclosure described and shown in the drawings herein can be arranged and designed in various different configurations.
[0026] In the description of the present disclosure, it should be noted that the orientation or position relationship indicated by the terms "up", "inner" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the product of the present disclosure is used, and is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present disclosure, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected, can be mechanically connected, can also be electrically connected, can be directly connected, can be indirectly connected through an intermediate medium, and can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0028] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meaning understood by those skilled in the art to which the present application belongs.
[0029] Embodiment:
[0030] As Figure 1 shown, the laboratory exhaust cabinet with automatic adjusting door of the utility model, including the cabinet 1, the upper part of the cabinet is provided with the air bellow, the air bellow is provided with the up-down moving adjusting door 4 on one side, the up-down moving adjusting door 4 is matched with the drive mechanism 13, the top of the air bellow is provided with the exhaust fan 2, the lower part of the cabinet 1 is provided with the central controller 5 and the human body induction module 7, the human body induction module 7, the exhaust fan 2 and the drive mechanism 13 are all connected with the central controller 5. The laboratory exhaust cabinet with automatic adjusting door of the utility model, through the cooperation of the cabinet 1, the air bellow, the up-down moving adjusting door 4, the drive mechanism 13, the exhaust fan, the central controller 5 and the human body induction module 7, when the human body induction module 7 senses the human body, the signal is transmitted to the central controller 5, the central controller 5 controls the exhaust fan and the drive mechanism 13 to open, the drive mechanism 13 drives the up-down moving adjusting door 4 to move up and open, the exhaust fan extracts the harmful air inside the laboratory and discharges, without manual control of the staff, with the advantages of simple structure and convenient control, avoids the contact type operation, improves the safety, realizes the intelligent auxiliary function of equipment, greatly improves the ease of use, operability and safety, embodies the intelligent equipment concept of people-oriented. It should be noted that the drive mode of the drive mechanism 13 is similar to the drive mode of the electric roller shutter door in the prior art, relying on a motor connected with the up-down moving adjusting door 4 through a synchronous belt, the human body induction module 7 generally uses an infrared sensor to sense.
[0031] As a preferred embodiment, the cabinet 1 is provided with a gesture recognition module 11 below the up-down moving adjustment door 4, which is connected with the central controller 5. After this design, the staff can give the opening command through gestures, and the central controller 5 controls the driving mechanism 13 to work and controls the exhaust fan 2 to work. PAJ7620U2 chip in the prior art can be used. The chip is an optical array sensor, which is built-in integrated light source, environmental light suppression filter LED, lens and gesture recognition sensor, and can work in dark or low light environment. Meanwhile, it is built-in gesture recognition and object proximity detection function supporting nine gestures.
[0032] As a preferred embodiment, the cabinet 1 is provided with a gesture recognition module 11 below the up-down moving adjustment door 4, which is connected with the central controller 5. After this design, the staff can give the opening command through gestures, and the central controller 5 controls the driving mechanism 13 to work and controls the exhaust fan 2 to work. PAJ7620U2 chip in the prior art can be used. The chip is an optical array sensor, which is built-in integrated light source, environmental light suppression filter LED, lens and gesture recognition sensor, and can work in dark or low light environment. Meanwhile, it is built-in gesture recognition and object proximity detection function supporting nine gestures.
[0033] As a preferred embodiment, the cabinet 1 is provided with a temperature and humidity monitoring module, which is connected with the central controller 5. The corresponding temperature sensor and humidity sensor can be installed at appropriate positions of the cabinet 1 to monitor the temperature and humidity in real time and transmit the monitoring data to the central controller 5.
[0034] As a preferred embodiment, the cabinet 1 is provided with a spray port 8 and an air outlet 9, and is matched with a corresponding spray electromagnetic valve and air outlet electromagnetic valve, which are connected with the central controller 5. After this design, the central controller 5 can control the opening or closing of the spray electromagnetic valve and the air outlet electromagnetic valve according to the data collected by each sensor. For example, when the exhaust fan 2 discharges a lot of air, the indoor air is thin, and at this time the central controller 5 controls the air outlet electromagnetic valve to open and inputs clean fresh air into the laboratory as a supplement. When the laboratory is quite dry, the spray electromagnetic valve can be controlled to open to spray water mist to humidify the air.
[0035] As a preferred embodiment, the cabinet 1 is provided with a foot trigger switch 12 at the bottom, which is connected with the central controller 5. After this design, the staff can use the foot to touch the trigger switch 12 to give the opening signal to the central controller 5, and the central controller 5 controls the driving mechanism 13 to work and controls the exhaust fan 2 to work.
[0036] As a preferred embodiment, the cabinet 1 is provided with an air switch 6 and a socket 14. After such design, the power supply for various experimental equipment can be facilitated, and the air switch 6 can be tripped to protect when the load is overloaded, thereby having good safety.
[0037] As a preferred embodiment, the cabinet 1 is provided with an indication lamp module 3 above the up-down moving adjustment door 4, which is connected with the central controller 5. The indication lamp module 3 can display the working state of the exhaust fan 2 by using red, yellow and green LED lamps.
[0038] Compared with the prior art, the laboratory exhaust cabinet with the automatic adjustment door provided by the utility model has the following beneficial effects: manual control of experimental personnel is not needed, temperature rise sensing, automatic power-off, alarm and other functions are provided, and the experimental auxiliary function for experimental personnel is realized. Energy loss is reduced, and the safety, reliability and labor intensity of experiment are improved.
[0039] Since the various sensing modules are arranged to detect the working mode and state of the exhaust cabinet, and the central controller 5 is controlled autonomously according to the detection results, the safety of the up-down moving adjustment door 4 is ensured, the up-down moving adjustment door 4 is controlled by the non-contact control switch module, the up-down moving adjustment door 4 has the functions of automatic and manual remote control, the indication lamp module 3 is arranged, the control state can be understood by the operator through the feedback lamp state, the switch is given the function of close-range non-contact control of the up-down moving adjustment door 4, and the manual operation means of the up-down moving adjustment door 4 is diversified by the foreign matter sensing module 10 and the foot trigger switch 12, so that the up-down moving adjustment door 4 has multiple control modes and manual control diversity.
[0040] In terms of automatic control, the multi-dimensional automatic detection function is provided, and the logic control module can be divided into the unmanned state, the cabinet environment state and the long-time working state, the up-down moving adjustment door 4 is controlled by the various intelligent judgment algorithms, and the multi-dimensional automatic control of the up-down moving adjustment door 4 is realized.
[0041] The manual-automatic multi-dimensional control greatly improves the operability of experimental operators. The multi-dimensional operation mode improves the operation experience, the multi-dimensional automatic control logic improves the operation efficiency, the intelligent auxiliary function of the equipment is realized, the usability, operability and safety are greatly improved, and the people-oriented intelligent equipment concept is embodied.
[0042] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.
Claims
1. A laboratory fume hood with self-adjusting doors, characterized in that: The application relates to a cabinet, which comprises a cabinet body (1), a wind box arranged on the upper portion of the cabinet body, an up-and-down moving adjusting door (4) arranged on one side of the wind box, a driving mechanism (13) matched with the up-and-down moving adjusting door (4), an exhaust fan (2) arranged on the top of the wind box, a central controller (5) and a human body sensing module (7) arranged on the lower portion of the cabinet body (1), the human body sensing module (7), the exhaust fan (2) and the driving mechanism (13) being connected with the central controller (5), a gesture recognition module (11) arranged below the up-and-down moving adjusting door (4) on the cabinet body (1), and the gesture recognition module (11) being connected with the central controller (5).
2. The fume hood with an automatically adjusted door according to claim 1, characterized in that: A foreign matter sensing module (10) is arranged on the lower portion of the up-and-down moving adjusting door (4), and the foreign matter sensing module (10) is connected with the central controller (5).
3. The fume hood with an automatically adjusted door according to claim 1, characterized in that: A temperature and humidity monitoring module is further arranged on the cabinet body (1), and the temperature and humidity monitoring module is connected with the central controller (5).
4. The fume hood with an automatically adjusted door according to claim 1, characterized in that: A spraying port (8) and an air outlet (9) are further arranged on the cabinet body (1), and corresponding spraying electromagnetic valves and air outlet electromagnetic valves are matched with the spraying port (8) and the air outlet (9), and the spraying electromagnetic valves and the air outlet electromagnetic valves are connected with the central controller (5).
5. The automatically adjusted door laboratory fume hood of claim 1, wherein: A foot trigger switch (12) is arranged on the bottom of the cabinet body (1), and the foot trigger switch (12) is connected with the central controller (5).
6. The automatically adjusted door laboratory fume hood of claim 1, wherein: An air switch (6) and a socket (14) are arranged on the cabinet body (1).
7. The fume hood with an automatically adjusted door according to claim 1, characterized in that: An indicating lamp module (3) is arranged above the up-and-down moving adjusting door (4) on the cabinet body (1), and the indicating lamp module (3) is connected with the central controller (5).