Ventilation reagent cabinet capable of adjusting positions of ventilation holes

Abstract

The invention discloses a ventilation reagent cabinet capable of adjusting positions of ventilation holes, and relates to the technical field of laboratory equipment.The ventilation reagent cabinet comprises a cabinet body, a ventilation assembly is arranged at the rear end of the interior of the cabinet body and comprises two mounting frames fixedly connected to the two sides of the rear end of the interior of the cabinet body respectively, and iron sheets are welded to the outer walls of one sides of the mounting frames; a plurality of ventilation frames are movably connected to the front end of the mounting frame at equal intervals, a plurality of through holes are formed in the front end face of each ventilation frame at equal intervals, magnetic suction plates are movably connected to the two sides of the top of each ventilation frame, and a plurality of placement assemblies are arranged at the front end of the interior of the cabinet body at equal intervals. The positions of the ventilation holes are adjusted through the mounting frame, the ventilation frame and the magnetic suction plate, the problem that the positions of the ventilation holes are inconvenient to adjust in the prior art is solved, the placement plate is automatically taken and placed through the fixed frame, the movable frame, the L-shaped frame and the magnetic suction block, and the problem that reagents are inconvenient to take and place in the prior art is solved.

Description

Technical Field

[0001] This invention belongs to the field of laboratory equipment technology, and in particular relates to a ventilated reagent cabinet with adjustable ventilation hole positions. Background Technology

[0002] Laboratory equipment refers to all instruments, devices, machinery, systems and auxiliary facilities equipped for completing experimental purposes in scientific research, teaching, testing or analysis. Ventilation reagent cabinets are an indispensable key component of a complete, safe and compliant laboratory equipment system. They are mainly used to store flammable, explosive, volatile or toxic and harmful chemical reagents in a standardized and safe manner, and to effectively control the harmful gases emitted by them through the exhaust system. The existing authorization announcement number CN220328674U discloses a ventilated chemical reagent storage cabinet, including a cabinet body, ventilation pipe, fan and several placement racks. The placement racks are rotatably equipped with sliders on the left and right sides of the front end and the left and right sides of the rear end. The cabinet body is equipped with slide rails and the sliders are equipped with fixing components. However, it still has the following drawbacks in practical use: The reagent storage cabinet mentioned above has a ventilation duct at the rear of the cabinet and a fan at the ventilation duct. The ventilation duct and the fan ventilate the inside of the cabinet. However, during use, the installation position of the ventilation duct is fixed. The cabinet is relatively tall and there are multiple shelves inside the cabinet, which makes the airflow inside the cabinet unstable and uneven, resulting in poor practicality. The reagent storage cabinet mentioned above has several shelves inside, and each shelf has several frames for storing reagents. However, in order to store more reagents, the cabinet is generally deep, which results in some reagents being stored at the back of the shelves, making them inconvenient to retrieve.

[0003] To address these issues, we provide a ventilated reagent cabinet with adjustable ventilation hole positions. Summary of the Invention

[0004] The purpose of this invention is to provide a ventilated reagent cabinet with adjustable ventilation hole positions. The position of the ventilation rack is adjusted by a mounting frame, and the ventilation rack is fixed by magnetic attraction between an iron sheet and a magnetic plate, thus achieving adjustable ventilation hole positions and solving the problem of inconvenient ventilation hole position adjustment in existing systems. The placement plate is magnetically attracted by an L-shaped frame and a magnetic block, and the magnetic block and placement plate are moved by a fixed frame and a movable frame, enabling automatic retrieval and placement of reagents inside the cabinet, thus solving the problem of inconvenient reagent retrieval and placement in existing systems.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a ventilated reagent cabinet with adjustable ventilation hole positions, comprising a cabinet body. A ventilation assembly is located at the rear end of the cabinet body. The ventilation assembly includes two mounting frames fixedly connected to both sides of the rear end of the cabinet body. Iron sheets are welded to the outer wall of one side of each mounting frame. Multiple ventilation racks are movably connected at equal intervals to the front end of each mounting frame. Multiple through holes are movably opened at equal intervals on the front surface of each ventilation rack. Magnetic plates are movably connected to both sides of the top of each ventilation rack. Multiple placement components are movably arranged at equal intervals at the front end of the cabinet body. Each placement component includes a shelf fixedly connected to the front end of the cabinet body. Multiple placement plates are magnetically attracted at equal intervals to the center of the upper surface of the shelf. Fixed frames are fixedly connected to both sides of the upper surface of the shelf. A movable frame is movably connected to one side of the fixed frame. An L-shaped frame is movably connected to one side of the movable frame. Magnetic blocks are fixedly connected to the transverse support arms of the L-shaped frame.

[0006] A further feature of the present invention is that a sliding rod is fixedly connected inside the mounting frame, and a plurality of first sliders are sleeved on the sliding rod. The front end face of the first slider extends to the outside of the mounting frame and is fixedly connected to both sides of the rear end face of the ventilation frame.

[0007] A further feature of the present invention is that: mounting bases are fixedly connected to both sides of the top of the ventilation frame, threaded rods are threadedly connected to the mounting bases, knobs are fixedly connected to the front ends of the threaded rods, and the rear ends of the threaded rods are fixedly connected to the front end face of the magnetic plate.

[0008] A further feature of the present invention is that ventilation pipes are connected to both sides of the rear end of the ventilation frame, and the ventilation pipes include T-joints fixedly connected to both sides of the rear end of the ventilation frame. Expansion joints are fixedly connected to both ends of the T-joints, and connecting pipes are fixedly connected to both ends of the expansion joints. The end of the connecting pipe away from the expansion joint extends to the outside of the cabinet and is fixedly connected to a fan.

[0009] A further feature of the present invention is that an upper cabinet door is rotatably connected to the upper front end of the cabinet body, and an observation window is fitted and fixed on the end face of the upper cabinet door; a lower cabinet door is rotatably connected to the lower front end of the cabinet body.

[0010] A further feature of the present invention is that L-shaped plates are fixedly connected to both sides of the lower surface of the shelf, and the vertical support arms of the L-shaped plates are fixedly connected to the inner walls of both sides of the cabinet.

[0011] A further feature of the present invention is that the bottom front and rear ends of the fixed frame are fixedly connected to a fixed bracket, and the bottom of the fixed bracket is fixedly connected to the upper surface of the shelf around the perimeter.

[0012] A further configuration of the present invention is as follows: a first motor is fixedly connected to the inner rear end of the fixed frame via a first mounting bracket; a first lead screw is fixedly connected to the output shaft of the first motor; the front end of the first lead screw is rotatably connected to the inner front end of the fixed frame; a second slider is threaded onto the first lead screw; one side of the outer wall of the second slider extends to the outside of the fixed frame and is fixedly connected to the movable frame.

[0013] A further configuration of the present invention is as follows: a second motor is fixedly connected to the top of the movable frame via a second mounting bracket; the output shaft of the second motor extends into the interior of the movable frame and is fixedly connected to a second lead screw; the bottom end of the second lead screw is rotatably connected to the bottom inner side of the movable frame; a third slider is threaded onto the second lead screw; one outer wall of the third slider extends into the exterior of the movable frame and is fixedly connected to the vertical support arm of the L-shaped frame.

[0014] The present invention has the following beneficial effects: This invention, through the coordinated operation of a ventilation assembly, a mounting frame, a ventilation rack, and a magnetic plate, allows operators to manually slide the ventilation rack up and down along the mounting frame to the target position. A rotating knob then drives the magnetic plate to adhere to the iron plate on the side wall of the mounting frame, achieving flexible, precise adjustment and reliable locking of the ventilation rack in the vertical direction within the cabinet. This enables the ventilation airflow to be directed and intensified for densely packed reagent storage areas or specific heights, effectively solving the problems of uneven airflow distribution and dead zones caused by the height of the cabinet and the obstruction of shelves in traditional fixed ventilation structures. It significantly improves the uniformity, targeting, and overall efficiency of harmful gas exhaust and fresh air replenishment within the cabinet, greatly enhancing the safety, stability, and adaptability of the reagent storage environment to different experimental conditions and storage requirements.

[0015] This invention, through the coordinated operation of a fixed frame, a movable frame, an L-shaped frame, and magnetic blocks, and driven by a control system, enables automated and precise storage and retrieval of reagents stored deep within the cabinet. This avoids the inconvenience, inefficiency, and safety risks associated with operators needing to reach into the cabinet or manually drag shelves. It significantly improves the convenience, accuracy, and efficiency of reagent storage and retrieval, particularly beneficial for the standardized and automated management of laboratory reagents. Furthermore, it effectively reduces the risk of accidents such as reagent bottle collisions, tipping, or leaks caused by improper manual operation, enhancing overall operational safety and intelligence.

[0016] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall side sectional view of the present invention.

[0019] Figure 2 This is a schematic diagram of the cabinet structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the ventilation component of the present invention.

[0021] Figure 4 This is a structural disassembly diagram of the mounting frame and iron sheet of the present invention.

[0022] Figure 5 This is a structural disassembly diagram of the ventilation frame of the present invention.

[0023] Figure 6 This is a schematic diagram of the ventilation duct of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of the component placement in this invention.

[0025] Figure 8 This is a structural disassembly diagram of the fixing frame of the present invention.

[0026] Figure 9 This is a structural disassembly diagram of the movable frame and L-shaped frame of the present invention.

[0027] The attached diagram lists the components represented by each number as follows: 1-Cabinet body, 101-Upper cabinet door, 102-Observation window, 103-Lower cabinet door, 2-Ventilation assembly, 201-Mounting frame, 201a-Sliding rod, 202-Iron sheet, 203-Ventilation bracket, 203a-First slider, 203b-Through hole, 203c-Mounting base, 204-Magnetic plate, 204a-Threaded rod, 204b-Knob, 205-Ventilation pipe, 205a-T-connector, 205b-Expansion joint, 205c-Connecting pipe, 205 d-fan, 3-placement assembly, 301-shelf, 301a-L-shaped plate, 302-placement plate, 303-fixed frame, 303a-fixed bracket, 303b-first mounting bracket, 303c-first motor, 303d-first lead screw, 303e-second slider, 304-movable frame, 304a-second mounting bracket, 304b-second motor, 304c-second lead screw, 304d-third slider, 305-L-shaped bracket, 306-magnetic block. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1 Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this is the first embodiment of the present invention. This embodiment provides a ventilated reagent cabinet with adjustable ventilation hole position, including a cabinet body 1. A ventilation component 2 is provided at the rear end of the cabinet body 1. The ventilation component 2 includes a mounting frame 201, an iron plate 202, a ventilation frame 203, and a magnetic suction plate 204. The position of the ventilation frame 203 is adjusted by the mounting frame 201, and the ventilation frame 203 is fixed by the magnetic attraction between the iron plate 202 and the magnetic suction plate 204, thereby realizing the adjustment of the ventilation hole position and solving the problem of the inconvenience of adjusting the ventilation hole position in the existing system.

[0030] Specifically, two mounting frames 201 are provided and fixedly connected to both sides of the rear end inside the cabinet 1. The mounting frames 201 are used to install structures such as iron plates 202 and ventilation racks 203, and also enable the ventilation racks 203 to move inside the cabinet 1, facilitating the adjustment of the position of the ventilation racks 203. Iron plates 202 are welded to one outer wall of each mounting frame 201. The iron plates 202, together with the magnetic plates 204, are used to position the ventilation racks 203, thereby fixing the ventilation racks 203 to the designated positions on the mounting frames 201. Multiple ventilation racks 203 are movably connected at equal intervals to the front end of the mounting frames 201. Multiple through holes 203b are evenly spaced on the front surface of the 3. The ventilation rack 203 is used to ventilate the interior of the cabinet 1. The ventilation rack 203 has a cavity inside to ensure air circulation. The through holes 203b are connected to the cavity inside the ventilation rack 203, thereby realizing the mutual circulation between the air inside the ventilation rack 203 and the air inside the cabinet 1. Magnetic plates 204 are movably connected to both sides of the top of the ventilation rack 203. The magnetic plates 204 can be made of permanent magnets or electromagnets, with permanent magnets being preferred. The ventilation rack 203 is fixed by the cooperation of the magnetic plates 204 and the iron plate 202.

[0031] Furthermore, a slide rod 201a is fixedly connected inside the mounting frame 201. Multiple first sliders 203a are sleeved on the slide rod 201a. The front end face of the first slider 203a extends to the outside of the mounting frame 201 and is fixedly connected to both sides of the rear end face of the ventilation frame 203. The arrangement of the slide rod 201a and the first sliders 203a enables the ventilation frame 203 to be movably mounted on the mounting frame 201, thereby ensuring that the ventilation frame 203 can slide on the mounting frame 201. The top two sides of the ventilation bracket 203 are fixedly connected to the mounting base 203c. The mounting base 203c is threadedly connected to the threaded rod 204a. The front end of the threaded rod 204a is fixedly connected to the knob 204b. The rear end of the threaded rod 204a is fixedly connected to the front end face of the magnetic plate 204. The mounting base 203c is set to install the threaded rod 204a. The threaded rod 204a is set to drive the magnetic plate 204 to move. The knob 204b is set to facilitate the rotation of the threaded rod 204a. Ventilation pipes 205 are connected to both sides of the rear end of the ventilation rack 203. Each ventilation pipe 205 includes a T-joint 205a fixedly connected to both sides of the rear end of the ventilation rack 203. Expansion joints 205b are fixedly connected to both ends of each T-joint 205a. Connecting pipes 205c are fixedly connected to both ends of each expansion joint 205b. The end of the connecting pipe 205c away from the expansion joint 205b extends to the outside of the cabinet 1 and is fixedly connected to a fan 205d. The ventilation pipes 205 allow for the connection between the internal cavity of the ventilation rack 203 and the external atmospheric environment. The connection is achieved by the three-way connector 205a, which connects the ventilation frame 203 to the expansion joint 205b. The expansion joint 205b allows the length of the ventilation pipe 205 to change synchronously with the movement of the ventilation frame 203, thus adapting to the ventilation frame 203 in different positions. The connecting pipe 205c connects the expansion joint 205b to the fan 205d. The fan 205d enables the forced input of fresh air into the ventilation frame 203 or the exhaust of air from the ventilation frame 203, thus realizing the ventilation operation inside the cabinet 1. An upper cabinet door 101 is rotatably connected to the upper front of cabinet 1. Observation windows 102 are fitted and fixed on the end face of the upper cabinet door 101. A lower cabinet door 103 is rotatably connected to the lower front of cabinet 1. The upper cabinet door 101 and the lower cabinet door 103 are designed to seal the interior of cabinet 1, thus ensuring that the interior of cabinet 1 is in a closed state. Both the upper cabinet door 101 and the lower cabinet door 103 are equipped with door lock structures to lock the upper cabinet door 101 and the lower cabinet door 103. The observation windows 102 are made of corrosion-resistant transparent material. The observation windows 102 allow staff to understand the situation inside cabinet 1 without opening the upper cabinet door 101.

[0032] The operation process of this embodiment is as follows: After determining the ventilation rack 203 that needs to be adjusted according to the ventilation requirements inside the cabinet, hold the knobs 204b on the mounting bases 203c on both sides of the top of the ventilation rack 203 with both hands and rotate them clockwise. The rotation of the knobs 204b drives the threaded rod 204a that is fixedly connected to it to rotate. Since the threaded rod 204a is threadedly connected to the mounting base 203c, its rotational motion is converted into the linear backward movement of the threaded rod 204a itself. When the threaded rod 204a moves backward, it drives the magnetic suction plate 204 fixedly connected to its end to move backward in sync, causing the rear end face of the magnetic suction plate 204 to separate from the iron piece 202 on the side wall of the mounting frame 201. The increased distance between the two leads to a weakening of the magnetic attraction force, and the ventilation frame 203 is released from fixation. Subsequently, the operator pushes and pulls the ventilation frame 203 directly by hand. At this time, the first slider 203a connected to the two sides of the rear end of the ventilation frame 203 slides along the slide rod 201a in the mounting frame 201, thereby moving the ventilation frame 203 to the target position. After the ventilation frame 203 is moved to the target position, the knobs 204b on both sides are immediately rotated counterclockwise to drive the threaded rod 204a to move forward in a straight line, pushing the magnetic plate 204 forward until its rear end face is tightly attached to the iron piece 202 at the corresponding position. The magnetic attraction force is restored, and the ventilation frame 203 is firmly locked. During the movement of the ventilation frame 203, the ventilation pipes 205 connected to its rear two sides deform accordingly, and the expansion joint 205b connecting the tee joint 205a and the connecting pipe 205c automatically expands and contracts to maintain airflow. After adjustment, start the fan 205d. The airflow enters the cavity of the ventilation rack 203 through the connecting pipe 205c, expansion joint 205b, and tee connector 205a, and finally achieves ventilation inside the cabinet through the through hole 203b at the front end of the ventilation rack 203.

[0033] Example 2 Please see Figure 1 , Figure 2 , Figure 7 , Figure 8 and Figure 9 As shown, this is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the previous embodiment in that: multiple placement components 3 are equally spaced at the front end of the interior of the cabinet 1. The placement components 3 include a shelf 301, a placement plate 302, a fixed frame 303, a movable frame 304, an L-shaped frame 305, and a magnetic block 306. The L-shaped frame 305 and the magnetic block 306 magnetically attract the placement plate 302, and the fixed frame 303 and the movable frame 304 drive the magnetic block 306 and the placement plate 302 to move, thereby realizing the automatic retrieval and placement of reagents in the cabinet 1 and solving the problem of the inconvenience of retrieving and placing reagents in the existing system.

[0034] Specifically, shelf 301 is fixedly connected to the front end of the cabinet 1. Shelf 301 is used to install structures such as placement plates 302, and also to divide the interior of cabinet 1 into layers. Multiple placement plates 302 are magnetically attracted at equal intervals to the center of the upper surface of shelf 301. Multiple slots for placing reagent bottles are formed on the surface of each placement plate 302. Depending on the size and shape of the reagent bottles, different placement plates 302 have slots of different sizes or shapes, facilitating the placement of different reagent bottles on shelf 301. Metal or magnets are embedded on both sides of the interior of each placement plate 302 to ensure magnetic connection between the placement plate 302, shelf 301, and magnetic block 306. Fixed frames 303 are fixedly connected to both sides of the upper surface of shelf 301. Fixed frames 303 are used to install movable frames 304 and to move the movable frames 304 back and forth inside cabinet 1. The linear motion of the fixed frame 303 causes the movable frame 304 to move the designated placement plate 302 to the outside of the cabinet 1. The movable frame 304 is movably connected to one side of the fixed frame 303. The movable frame 304 is used to install the L-shaped frame 305 and drive the L-shaped frame 305 to move linearly in the up and down direction, thereby separating or releasing the placement plate 302 from the shelf 301. The L-shaped frame 305 is movably connected to one side of the movable frame 304. Magnetic blocks 306 are fixedly connected to the horizontal support arms of the L-shaped frame 305. The L-shaped frame 305 is used to drive the placement plate 302 to move, thereby realizing the automatic picking and placing of reagent bottles inside the cabinet 1. The magnetic blocks 306 can be electromagnets or permanent magnets, with electromagnets being preferred. The magnetic blocks 306 connect the placement plate 302 and the L-shaped frame 305, so that the L-shaped frame 305 can drive the placement plate 302 to move.

[0035] Furthermore, L-shaped plates 301a are fixedly connected to both sides of the lower surface of the shelf 301. The vertical support arms of the L-shaped plates 301a are fixedly connected to the inner walls of both sides of the cabinet 1. The L-shaped plates 301a are connected to the shelf 301 and the inner wall of the cabinet 1 by bolts. Thus, the L-shaped plates 301a are used to install the shelf 301 in a designated position inside the cabinet 1, and the spacing of the shelf 301 can be adjusted according to actual needs. The bottom front and rear ends of the fixed frame 303 are fixedly connected to the fixed brackets 303a. The bottom of the fixed brackets 303a is fixedly connected to the upper surface of the shelf 301 around the perimeter. The fixed brackets 303a are used to install the fixed frame 303 on the shelf 301. The inner rear end of the fixed frame 303 is fixedly connected to the first motor 303c via the first mounting bracket 303b. The output shaft of the first motor 303c is fixedly connected to the first lead screw 303d. The front end of the first lead screw 303d is rotatably connected to the inner front end of the fixed frame 303. The first lead screw 303d is threadedly connected to the second slider 303e. One outer wall of the second slider 303e extends to the outside of the fixed frame 303 and is fixedly connected to the movable frame 304. The first mounting bracket 303b is set to install the first motor 303c. The first motor 303c is set to drive the first lead screw 303d to rotate. The first lead screw 303d and the second slider 303e realize the movable connection between the fixed frame 303 and the movable frame 304, and realize the linear motion of the movable frame 304 relative to the fixed frame 303 in the front-back direction. A second motor 304b is fixedly connected to the top of the movable frame 304 via a second mounting bracket 304a. The output shaft of the second motor 304b extends into the interior of the movable frame 304 and is fixedly connected to a second lead screw 304c. The bottom end of the second lead screw 304c is rotatably connected to the inner bottom of the movable frame 304. A third slider 304d is threaded onto the second lead screw 304c. One outer wall of the third slider 304d extends to the outside of the movable frame 304 and is fixedly connected to the vertical support arm of the L-shaped frame 305. The second mounting bracket 304a is used to mount the second motor 304b, and the second motor 304b is used to drive the second lead screw 304c to rotate. The arrangement of the second lead screw 304c and the third slider 304d enables the L-shaped frame 305 to be movably mounted on the movable frame 304 and drives the L-shaped frame 305 to perform linear motion in the up and down direction relative to the movable frame 304.

[0036] The rest of the structure is the same as in Example 1.

[0037] The operation process of this embodiment is as follows: The operator determines the corresponding shelf 301 according to the storage location of the reagent bottle, then determines the designated placement plate 302 that needs to be placed on the shelf 301, and then starts the first motor 303c. The first motor 303c drives the first lead screw 303d to rotate, which drives the second slider 303e, which is threadedly connected to the first lead screw 303d, to move. The second slider 303e drives the movable frame 304 to move along the fixed frame 303. When the movable frame 304 moves to the target placement plate 302, the first motor 303c is turned off. Next, the second motor 304b is started. The second motor 304b drives the second lead screw 304c to rotate, which in turn drives the third slider 304d, which is threadedly connected to the second lead screw 304c, to move downward. The third slider 304d drives the L-shaped frame 305 to descend. When the magnetic block 306 on the L-shaped frame 305 contacts the target placement plate 302 and is firmly attracted, the second motor 304b is turned off. Then, the second motor 304b is restarted and reversed, causing the second lead screw 304c to drive the third slider 304d and the L-shaped frame 305 to rise. When the placement plate 302 rises to the specified height, the second motor 304b is turned off. Then, the first motor 303c is restarted, causing the first lead screw 303d to drive the movable frame 304, the L-shaped frame 305 and the placement plate 302 to move towards the cabinet door through the second slider 303e. When the placement plate 302 is transported to the predetermined position outside the cabinet, the first motor 303c is turned off. After completing the reagent handling operation, start the first motor 303c to reverse, so that the movable frame 304 returns to its original position inside the cabinet, and then turn off the first motor 303c. Next, start the second motor 304b to rotate forward, so that the L-shaped frame 305 descends and the placement plate 302 is placed back on the surface of the shelf 301. Then turn off the second motor 304b. Finally, control the magnetic block 306 to release the adsorption, and start the second motor 304b again to reverse, so that the L-shaped frame 305 rises and resets. After turning off the second motor 304b, the operation is complete.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A ventilated reagent cabinet with adjustable ventilation hole position, comprising a cabinet body (1), characterized in that: The cabinet (1) has a ventilation assembly (2) at its rear end. The ventilation assembly (2) includes two mounting frames (201) fixedly connected to the two sides of the rear end of the cabinet (1). Iron plates (202) are welded to the outer wall of one side of each mounting frame (201). Multiple ventilation racks (203) are movably connected at equal intervals to the front end of each mounting frame (201). Multiple through holes (203b) are movably opened at equal intervals on the front end face of each ventilation rack (203). Magnetic plates (204) are movably connected to the top two sides of each ventilation rack (203). The front end of the cabinet (1) is... Multiple placement components (3) are arranged at equal intervals, and each placement component (3) includes a shelf (301) fixedly connected to the front end of the cabinet (1). Multiple placement plates (302) are magnetically attracted at equal intervals on the center of the upper surface of the shelf (301). Fixed frames (303) are fixedly connected to both sides of the upper surface of the shelf (301). A movable frame (304) is movably connected to one side of the fixed frame (303), and an L-shaped frame (305) is movably connected to one side of the movable frame (304). Magnetic blocks (306) are fixedly connected to the horizontal support arms of the L-shaped frame (305).

2. The ventilated reagent cabinet with adjustable ventilation hole position according to claim 1, characterized in that, The mounting frame (201) is fixedly connected to a slide rod (201a), and a plurality of first sliders (203a) are sleeved on the slide rod (201a). The front end face of the first slider (203a) extends to the outside of the mounting frame (201) and is fixedly connected to both sides of the rear end face of the ventilation frame (203).

3. A ventilated reagent cabinet with adjustable ventilation hole position according to claim 1, characterized in that, The ventilation frame (203) has mounting bases (203c) fixedly connected to both sides of its top, and a threaded rod (204a) is threadedly connected to the mounting base (203c). A knob (204b) is fixedly connected to the front end of the threaded rod (204a), and the rear end of the threaded rod (204a) is fixedly connected to the front end face of the magnetic plate (204).

4. A ventilated reagent cabinet with adjustable ventilation hole position according to claim 1, characterized in that, The ventilation rack (203) has ventilation pipes (205) connected to both sides of its rear end. The ventilation pipes (205) include three-way connectors (205a) fixedly connected to both sides of the rear end of the ventilation rack (203). Both ends of the three-way connectors (205a) are fixedly connected to expansion joints (205b), and both expansion joints (205b) at both ends are fixedly connected to connecting pipes (205c). The end of the connecting pipe (205c) away from the expansion joint (205b) extends to the outside of the cabinet (1) and is fixedly connected to a fan (205d).

5. A ventilated reagent cabinet with adjustable ventilation hole position according to claim 4, characterized in that, The cabinet (1) is rotatably connected to the upper front end of the cabinet (1), and an observation window (102) is fixedly fitted on the end face of the upper cabinet door (101). The cabinet (103) is rotatably connected to the lower front end of the cabinet (1).

6. A ventilated reagent cabinet with adjustable ventilation hole position according to claim 1, characterized in that, The lower surface of the shelf (301) is fixedly connected to both sides of an L-shaped plate (301a), and the vertical support arms of the L-shaped plate (301a) are fixedly connected to the inner walls of both sides of the cabinet (1).

7. A ventilated reagent cabinet with adjustable ventilation hole position according to claim 1, characterized in that, The bottom front and rear ends of the fixed frame (303) are fixedly connected to the fixed bracket (303a), and the bottom of the fixed bracket (303a) is fixedly connected to the upper surface of the shelf (301) around the perimeter.

8. A ventilated reagent cabinet with adjustable ventilation hole position according to claim 1, characterized in that, The inner rear end of the fixed frame (303) is fixedly connected to the first motor (303c) via the first mounting bracket (303b), and the output shaft of the first motor (303c) is fixedly connected to the first lead screw (303d). The front end of the first lead screw (303d) is rotatably connected to the inner front end of the fixed frame (303), and a second slider (303e) is threaded onto the first lead screw (303d). One side of the outer wall of the second slider (303e) extends to the outside of the fixed frame (303) and is fixedly connected to the movable frame (304).

9. A ventilated reagent cabinet with adjustable ventilation hole position according to claim 1, characterized in that, The top of the movable frame (304) is fixedly connected to a second motor (304b) via a second mounting bracket (304a), and the output shaft of the second motor (304b) extends into the interior of the movable frame (304) and is fixedly connected to a second lead screw (304c). The bottom end of the second lead screw (304c) is rotatably connected to the bottom inner side of the movable frame (304), and a third slider (304d) is threaded onto the second lead screw (304c). One outer wall of the third slider (304d) extends into the exterior of the movable frame (304) and is fixedly connected to the vertical support arm of the L-shaped frame (305).

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