Ventilation device for experiment operation table

Abstract

The utility model discloses a ventilation device for an experiment operation table, and relates to the technical field of laboratory equipment. The ventilation device of the experiment operation table comprises an air outlet box body and a detachable filtering device, the detachable filtering device comprises a sealing cover plate, sealing bolts, a filtering device support, ventilation holes, an air filter screen A, an air filter screen B, an air filter screen C, an air filter screen D, a fixing plate and positioning bolts, and the sealing cover plate is connected to the surface of the air outlet box body through bolts; the multiple sealing bolts are all in threaded connection to the surface of the sealing cover plate, each sealing bolt extends into the air outlet box body and is in threaded connection with the air outlet box body, and the filtering device support is slidably connected into the air outlet box body; the detachable filtering device is arranged to solve the problems that a filtering system of a ventilation device of an experiment operation table is arranged in the device, replacement of a filtering net is not facilitated, the filtering net needs to be detached one by one during replacement every time, operation is tedious, and time delay is caused.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment technology, and in particular to a ventilation device for a laboratory operating table. Background Technology

[0002] Laboratories frequently conduct various chemical and biological experiments, which may generate toxic, harmful, or irritating gases. If laboratory ventilation is poor, these harmful gases can accumulate, posing a serious threat to the health of laboratory personnel. A good ventilation system can promptly expel these harmful gases outdoors, maintaining fresh indoor air and protecting the respiratory health of laboratory staff. Long-term accumulation of harmful gases and particulate matter on experimental equipment can lead to corrosion and damage, affecting the normal operation and lifespan of the equipment. A ventilation system can promptly dilute and remove these harmful gases and particulate matter, protecting experimental equipment from corrosion and damage.

[0003] Laboratory workbench ventilation devices typically have filtration systems. However, the various filters in these systems need to be replaced or cleaned after each use. The existing filtration systems are located inside the device, which makes filter replacement difficult. Each replacement requires disassembly, which is cumbersome and causes delays. Therefore, a laboratory workbench ventilation device that facilitates filter replacement is needed. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a ventilation device for experimental operating tables. This device solves the problem that the filter system of the experimental operating table ventilation device is located inside the device, which is not conducive to the replacement of the filter screen. Moreover, each replacement requires disassembly, which is cumbersome and causes delays in work time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ventilation device for an experimental operating table, comprising an air outlet box and a detachable filter device. The detachable filter device includes a sealing cover, sealing bolts, a filter device bracket, ventilation holes, air filter A, air filter B, air filter C, air filter D, a fixing plate, and positioning bolts. The sealing cover is bolted to the surface of the air outlet box. Multiple sealing bolts are threaded onto the surface of the sealing cover, and each sealing bolt extends into the interior of the air outlet box and is threaded onto it. The filter device bracket is slidably connected to the interior of the air outlet box. Multiple ventilation holes are respectively opened on the upper and lower surfaces of the filter device bracket. The fixing plate is fixedly connected to the surface of the filter device bracket. Air filter A, air filter B, air filter C, and air filter D are bolted to the interior of the fixing plate. Air filters A, B, C, and D are all slidably connected to the filter device bracket. Multiple positioning bolts are threaded onto the surface of the fixing plate.

[0006] Preferably, the interior of the air outlet box is provided with a receiving groove for the fixing plate to slide.

[0007] Preferably, the surface of the air outlet box is provided with a placement groove for accommodating the sealing cover plate, and multiple sealing strips are fixedly connected to the surface of the sealing cover plate.

[0008] Preferably, the surface of the air outlet box is provided with a plurality of sealing grooves that are adapted to the sealing strip, and the number of sealing grooves is exactly the same as that of the sealing strip.

[0009] Preferably, a first fan and a second fan are fixedly connected inside the air outlet box, and a fan motor for driving the fan blades is fixedly connected inside both the first fan and the second fan. The second fan is located on top of the first fan, and the filter device bracket is located between the first fan and the second fan.

[0010] Preferably, an upper air outlet is fixedly connected to the top of the air outlet box, and a side air outlet is fixedly connected to the surface of the air outlet box.

[0011] Preferably, an air inlet box is fixedly connected to the bottom of the air outlet box, an air inlet is fixedly connected to the surface of the air inlet box, and a base is fixedly connected to the bottom of the air inlet box.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The ventilation device of this experimental workbench allows for cleaning of the filter screen inside the filter device bracket after the sealing cover is removed. If replacement is needed, simply unscrew the corresponding positioning bolts. The operation is simple and convenient. The detachable filter device solves the problem that the filter system of the experimental workbench ventilation device is located inside the device, which is not conducive to the replacement of the filter screen. Moreover, each replacement requires disassembly, which is cumbersome and causes delays in work time. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the main body of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the ventilation hole of this utility model;

[0018] Figure 4 This is a schematic diagram of the sealing strip of this utility model;

[0019] Figure 5 This is a schematic diagram of the fan motor of this utility model.

[0020] Reference numerals in the attached drawings: 1. Air outlet box; 2. Air inlet box; 3. Air inlet; 4. Base; 5. Side air outlet; 6. Top air outlet; 7. Sealing cover; 8. Sealing bolt; 9. Sealing strip; 10. Sealing groove; 11. Receiving groove; 12. Placement groove; 13. First fan; 14. Second fan; 15. Filter device bracket; 16. Ventilation hole; 17. Air filter A; 18. Air filter B; 19. Air filter C; 20. Air filter D; 21. Fixing plate; 22. Positioning bolt; 23. Fan motor. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a ventilation device for an experimental operating table, including an air outlet box 1 and a detachable filter device. The detachable filter device includes a sealing cover 7, sealing bolts 8, a filter device bracket 15, ventilation holes 16, air filters A17, B18, C19, and D20, a fixing plate 21, and positioning bolts 22. The sealing cover 7 is bolted to the surface of the air outlet box 1. There are multiple sealing bolts 8, all of which are threaded to the surface of the sealing cover 7. Each sealing bolt 8 extends into the interior of the air outlet box 1 and is threaded to the air outlet box 1. The filter device bracket 15 is slidably connected to the air outlet box. Inside body 1, there are multiple ventilation holes 16, which are respectively opened on the upper and lower surfaces of filter device bracket 15. Fixing plate 21 is fixedly connected to the surface of filter device bracket 15. Air filter A17, air filter B18, air filter C19, and air filter D20 are all bolted to the inside of fixing plate 21. Air filter A17, air filter B18, air filter C19, and air filter D20 are all slidably connected to filter device bracket 15. There are multiple positioning bolts 22, all of which are threaded to the surface of fixing plate 21.

[0026] Furthermore, the interior of the air outlet box 1 is provided with a receiving groove 11 for the sliding of the fixing plate 21, and the surface of the air outlet box 1 is provided with a placement groove 12 for accommodating the sealing cover plate 7. Multiple sealing strips 9 are fixedly connected to the surface of the sealing cover plate 7, and multiple sealing grooves 10 adapted to the sealing strips 9 are provided on the surface of the air outlet box 1. The number of sealing grooves 10 is exactly the same as the number of sealing strips 9. By turning the sealing bolts 8, the sealing cover plate 7 can be removed from the air outlet box 1, and the filter device bracket 15 inside the air outlet box 1 can be taken out. The setting of sealing strips 9 and sealing grooves 10 enhances the sealing performance between the sealing cover plate 7 and the air outlet box 1, avoiding air leakage and thus preventing environmental pollution. After removing the sealing cover plate 7, the filter screen installed inside the filter device bracket 15 can be cleaned. If replacement is required, simply unscrew the corresponding positioning bolts 22 to replace it. The operation is simple and convenient. The setting of the detachable filter device solves the problem that the filter system of the experimental operating table ventilation device is set inside the device, which is not conducive to the replacement of the filter screen, and each replacement requires disassembly, which is cumbersome and causes delays in work time.

[0027] Furthermore, a first fan 13 and a second fan 14 are fixedly connected inside the air outlet box 1. A fan motor 23 for driving the fan blades is fixedly connected inside both the first fan 13 and the second fan 14. The second fan 14 is located on top of the first fan 13. The filter device bracket 15 is located between the first fan 13 and the second fan 14. An upper air outlet 6 is fixedly connected to the top of the air outlet box 1, and a side air outlet 5 is fixedly connected to the surface of the air outlet box 1.

[0028] Secondly, an air inlet box 2 is fixedly connected to the bottom of the air outlet box 1, and an air inlet 3 is fixedly connected to the surface of the air inlet box 2. A base 4 is fixedly connected to the bottom of the air inlet box 2. When the air is filtered, the first fan 13 and the second fan 14 are activated. The first fan 13 draws air into the interior of the air outlet box 1 from the air inlet 3, and the second fan 14 discharges the air from the side air outlet 5 or the top air outlet 6. When the air moves inside the air outlet box 1, it is filtered by the filter device bracket 15. The air filter D20 is a microporous membrane material with smaller pore size, which can filter out small particles, has high filtration efficiency, low airflow resistance, high strength, and is resistant to chemicals, moisture, and temperature. The air filter C19 is made of glass. Fiber filter cotton, specifically glass fiber filter cotton, is made of long glass fibers in a non-woven manner. It has a large air permeability, low resistance, and excellent efficiency in capturing paint mist and dust, making it ideal for storing oil mist and dust. Air filter B18 is a HEPA filter, composed of multiple layers of continuously folded glass fiber membranes with tiny pores and a large adsorption capacity. It can effectively filter particles of 0.1-0.3 microns with a purification rate of up to 99.97%. Air filter A17 is an activated carbon filter, which has the function of removing harmful gases and adsorbing odors. It adsorbs a certain amount of harmful substances, effectively purifying the air through multiple filtration processes, which is beneficial for purifying the laboratory environment and maintaining the physical and mental health of laboratory personnel.

[0029] Working principle: By unscrewing the sealing bolt 8, the sealing cover 7 can be removed from the air outlet box 1, and the filter device bracket 15 inside the air outlet box 1 can be taken out. The sealing strip 9 and sealing groove 10 enhance the sealing performance between the sealing cover 7 and the air outlet box 1, preventing air leakage and thus preventing environmental pollution. After removing the sealing cover 7, the filter screen inside the filter device bracket 15 can be cleaned. If replacement is required, simply unscrew the corresponding positioning bolt 22 to replace it. The operation is simple and convenient.

[0030] When the air is filtered, the first fan 13 and the second fan 14 are activated. The first fan 13 draws air from the air inlet 3 into the interior of the air outlet box 1, and the second fan 14 discharges the air from the side air outlet 5 or the top air outlet 6. As the air moves inside the air outlet box 1, it is filtered by multiple filters inside the filter device bracket 15. Through the action of multiple filtrations, the air is effectively purified, which is conducive to purifying the laboratory environment and maintaining the physical and mental health of the laboratory personnel.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A ventilation device for an experimental operating table, characterized in that, include: Air outlet box (1); The removable filter device includes a sealing cover (7), sealing bolts (8), a filter device bracket (15), ventilation holes (16), air filters A (17), B (18), C (19), D (20), a fixing plate (21), and positioning bolts (22). The sealing cover (7) is bolted to the surface of the air outlet box (1). There are multiple sealing bolts (8), all of which are threaded to the surface of the sealing cover (7). Each sealing bolt (8) extends into the interior of the air outlet box (1) and is threaded to the air outlet box (1). The filter device bracket (15) is slidably connected to the interior of the air outlet box (1). The number of ventilation holes (16) is... Multiple filters are respectively opened on the upper and lower surfaces of the filter device bracket (15). The fixing plate (21) is fixedly connected to the surface of the filter device bracket (15). Air filter A (17) is bolted to the inside of the fixing plate (21), air filter B (18) is bolted to the inside of the fixing plate (21), air filter C (19) is bolted to the inside of the fixing plate (21), and air filter D (20) is bolted to the inside of the fixing plate (21). Air filter A (17), air filter B (18), air filter C (19) and air filter D (20) are all slidably connected to the filter device bracket (15). There are multiple positioning bolts (22), all of which are threaded to the surface of the fixing plate (21).

2. The ventilation device for an experimental operating table according to claim 1, characterized in that: The air outlet box (1) has an internal receiving groove (11) for the fixed plate (21) to slide.

3. The ventilation device for an experimental operating table according to claim 1, characterized in that: The surface of the air outlet box (1) is provided with a placement groove (12) for accommodating the sealing cover plate (7), and multiple sealing strips (9) are fixedly connected to the surface of the sealing cover plate (7).

4. The ventilation device for an experimental operating table according to claim 1, characterized in that: The surface of the air outlet box (1) is provided with a plurality of sealing grooves (10) that are adapted to the sealing strip (9), and the number of sealing grooves (10) is exactly the same as that of the sealing strip (9).

5. The ventilation device for an experimental operating table according to claim 1, characterized in that: The air outlet box (1) is fixedly connected to a first fan (13) and a second fan (14). The first fan (13) and the second fan (14) are both fixedly connected to a fan motor (23) for driving the fan blades. The second fan (14) is located on top of the first fan (13). The filter device bracket (15) is located between the first fan (13) and the second fan (14).

6. The ventilation device for an experimental operating table according to claim 1, characterized in that: The top of the air outlet box (1) is fixedly connected to an upper air outlet (6), and the surface of the air outlet box (1) is fixedly connected to a side air outlet (5).

7. The ventilation device for an experimental operating table according to claim 1, characterized in that: The bottom of the air outlet box (1) is fixedly connected to the air inlet box (2), the surface of the air inlet box (2) is fixedly connected to the air inlet (3), and the bottom of the air inlet box (2) is fixedly connected to the base (4).

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