Super-clean bench

Abstract

The utility model discloses an ultra-clean bench, and relates to the technical field of ultra-clean benches, two ends of a base are provided with adjusting mechanisms, a bench is arranged above the base, and a guide groove is arranged in the base close to the adjusting mechanisms. Before the clean bench is used, a handle is rotated to drive a first gear to rotate, the first gear is in meshed connection with a second gear, so that the first gear drives the second gear to rotate, the second gear drives a lead screw to rotate, the lead screw is in threaded meshing with a lifting rod, and the lifting rod moves upwards or upwards on the outer side of the lead screw; meanwhile, the two ends of the lifting rod slide in the guide grooves, the lifting rod drives the rack to move up and down, the rack drives the guide rods to move up and down at the top of the base, the height of the rack can be rapidly adjusted, then the table top height of the clean bench is adjusted, different experimenters can conduct experiments conveniently, and the practicability of the clean bench is improved.

Description

Technical Field

[0001] This utility model relates to the field of clean bench technology, specifically to a clean bench. Background Technology

[0002] Laboratories are specialized spaces for scientific research and experiments, typically equipped with various devices and instruments. Among these, a laminar flow hood is a device specifically designed for biosafety and aseptic operation, widely used in biological laboratories and the pharmaceutical industry. It filters airborne particles using high-efficiency filters, providing a dust-free and sterile working environment. The laminar flow hood usually contains ultraviolet lamps for sterilization, ensuring the safety of the experimental process.

[0003] However, existing clean benches have the following drawbacks. Since the tabletop height of most clean benches is usually fixed, but each experimenter has different needs, a fixed tabletop height may affect the experimenter's user experience and reduce the practicality of the clean bench. Therefore, the current clean benches need to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a clean bench to solve the problem mentioned in the background art that the table height of the clean benches on the market is usually fixed, which may affect the user experience of the experimenters and reduce the practicality of the clean bench.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clean bench, comprising a stand and an ultraviolet lamp, wherein a protective glass plate is installed on one side of the stand, the stand is fixed above a bench, the ultraviolet lamp and a lighting lamp are installed at both ends inside the stand, adjustment mechanisms are installed at both ends of the base, a bench is provided above the base, a guide groove is formed inside the base near the adjustment mechanism, and the adjustment mechanism is connected to the guide groove, the upper part of the adjustment mechanism is connected to the bench, a drive shaft is installed on the inner side of the base near the adjustment mechanism via a bearing, and a guide rod is connected to the lower part of the bench near the base. The guide rod and the base are slidably connected. The transmission shaft is connected to the adjustment mechanism, which includes a lifting rod, a lead screw, a handle, a first gear, and a second gear. The lifting rod is slidably connected to both ends of the base. The top of the lifting rod is connected to the platform. The two ends of the lifting rod are slidably connected to the guide groove. The lead screw is threaded into the inside of the lifting rod. The lead screw is connected to the base through a bearing. The second gear is fixedly connected to one end of the lead screw. The first gear is meshed with one side of the second gear. The inner side of the first gear is fixedly connected to the transmission shaft. The handle is fixedly connected to one end of the transmission shaft.

[0006] Preferably, limiting mechanisms are installed on both sides of the protective glass panel, and the limiting mechanisms are connected to the upright frame.

[0007] Preferably, the limiting mechanism includes a connecting rod, a limiting rod, a support block, and a fixing block. The protective glass plate has limiting rods that are evenly distributed on both sides, and the upright is equipped with fixing blocks on both sides near the limiting rods.

[0008] Preferably, a connecting rod is slidably sleeved on the inner side of the fixing block, and one end of the connecting rod is connected to a support block, which is located below the limiting rod.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. Equipped with an adjustment mechanism and a drive shaft, rotating the handle drives the first gear to rotate. The first gear meshes with the second gear, causing the first gear to drive the second gear to rotate. The second gear then drives the lead screw to rotate, and the lead screw engages with the lifting rod, causing the lifting rod to move upwards or downwards on the outside of the lead screw. At the same time, the two ends of the lifting rod slide in the guide groove, causing the lifting rod to move up and down, which in turn causes the platform to move up and down on the top of the base. This allows for quick adjustment of the platform height, thereby adjusting the height of the clean bench, facilitating experiments for different personnel and improving the practicality of the clean bench.

[0011] 2. A limiting mechanism is provided. The connecting rod can be pulled to one side first, causing it to slide inside the fixed block. At the same time, the connecting rod drives the support block to move to one side. After the protective glass plate is pushed up, the connecting rod is pushed again, causing it to move the support block below the limiting rod. This prevents the protective glass plate from sliding down and improves the stability of the clean bench. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a three-dimensional structural diagram of the base of this utility model;

[0014] Figure 3 This is a three-dimensional sectional view of the base of this utility model;

[0015] Figure 4 This is a three-dimensional sectional view of the adjustment mechanism of this utility model;

[0016] Figure 5 This is a three-dimensional structural diagram of the limiting mechanism of this utility model;

[0017] Figure 6 This is a schematic diagram of the three-dimensional structure of the platform of this utility model.

[0018] In the diagram: 1. Base; 2. Stand; 3. Protective glass plate; 4. Limiting mechanism; 401. Connecting rod; 402. Limiting rod; 403. Support block; 404. Fixing block; 5. Platform; 6. Adjusting mechanism; 601. Lifting rod; 602. Lead screw; 603. Handle; 604. Gear No. 1; 605. Gear No. 2; 7. Guide rod; 8. Drive shaft; 9. Guide groove; 10. Ultraviolet lamp; 11. Lighting lamp. Detailed Implementation

[0019] 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 protection scope of the present utility model.

[0020] Please see Figure 1-Figure 4 and Figure 6 This utility model provides a technical solution: a tabletop adjustment structure, including a base 1 and a guide groove 9. Adjustment mechanisms 6 are installed at both ends of the base 1. A frame 5 is provided above the base 1. The guide groove 9 is located inside the base 1 near the adjustment mechanism 6, and the adjustment mechanism 6 is connected to the guide groove 9. The upper part of the adjustment mechanism 6 is connected to the frame 5. A transmission shaft 8 is installed on the inner side of the base 1 near the adjustment mechanism 6 via a bearing. A guide rod 7 is connected to the lower part of the frame 5 near the base 1. The guide rod 7 is slidably sleeved with the base 1. The transmission shaft 8 is connected to the adjustment mechanism 6. The adjustment mechanism 6 includes a lifting rod 601, a lead screw 602, and a handle 60. 3. Gear No. 1 604 and Gear No. 2 605. Lifting rods 601 are slidably sleeved at both ends of the base 1. The upper part of the lifting rods 601 is connected to the platform 5. The two ends of the lifting rods 601 are slidably connected to the guide grooves 9. A lead screw 602 is threaded inside the lifting rods 601. The lead screw 602 is connected to the base 1 through a bearing. Gear No. 2 605 is fixedly connected to one end of the lead screw 602. Gear No. 1 604 is meshed on one side of the lead screw 605. Gear No. 1 604 is fixedly connected to the inner side of the lead screw 604 and the transmission shaft 8. A handle 603 is fixedly connected to one end of the transmission shaft 8. There are four guide rods 7.

[0021] In practice, since the table height of most clean benches is usually fixed, but each experimenter has different needs, a fixed table height may affect the user experience and reduce the practicality of the clean bench. To address this, by rotating handle 603, the first gear 604 is rotated, engaging with the second gear 605. This causes the first gear 604 to rotate, which in turn rotates the lead screw 602. The lead screw 602 then engages with the lifting rod 601, allowing the lifting rod 601 to move upwards or downwards outside the lead screw 602. Simultaneously, both ends of the lifting rod 601 slide in the guide groove 9, causing the frame 5 to move up and down. The frame 5 then moves the guide rod 7 up and down on the top of the base 1, allowing for quick adjustment of the frame 5's height, thereby adjusting the table height of the clean bench. This facilitates experiments for different experimenters and improves the practicality of the clean bench.

[0022] Please see Figure 1-Figure 3 and Figure 5 A clean bench includes a stand 2 and an ultraviolet lamp 10. A protective glass plate 3 is installed on one side of the stand 2. The stand 2 is fixed above a bench 5. The ultraviolet lamp 10 and a lighting lamp 11 are installed at both ends inside the stand 2. Limiting mechanisms 4 are installed on both sides of the protective glass plate 3. The limiting mechanisms 4 are connected to the stand 2. The limiting mechanisms 4 include a connecting rod 401, a limiting rod 402, a support block 403, and a fixing block 404. The limiting rods 402 are fixed at equal intervals on both sides of the protective glass plate 3. The fixing blocks 404 are installed on both sides of the stand 2 near the limiting rods 402. The connecting rods 401 are slidably sleeved on the inner side of the fixing blocks 404. One end of the connecting rod 401 is connected to the support block 403, and the support block 403 is located below the limiting rods 402. A semi-circular notch is opened on the upper part of the support block 403 near the limiting rods 402.

[0023] In practice, since most clean benches are equipped with a sliding protective glass plate 3, during experiments, the experimenter needs to push the protective glass plate 3 upwards to carry out the experiment. However, pushing and pulling the protective glass plate 3 for a long time can easily cause it to loosen and slide downwards. To prevent this, the connecting rod 401 can be pulled to one side first, so that the connecting rod 401 slides inside the fixed block 404. At the same time, the connecting rod 401 drives the support block 403 to move to one side. After pushing the protective glass plate 3 upwards, the connecting rod 401 can be pushed again, so that the connecting rod 401 drives the support block 403 to move below the limiting rod 402. This can prevent the protective glass plate 3 from sliding down and improve the stability of the clean bench.

[0024] Working principle: When using this clean bench, first adjust the height of the frame 5 using the adjustment mechanism 6 according to the usage requirements. Then, after the experimenter pushes open the protective glass plate 3, the position of the protective glass plate 3 is restricted by the limiting mechanism 4 to prevent the protective glass plate 3 from sliding down. Before the experiment, disinfection can be performed using the ultraviolet lamp 10, and illumination can be provided by the lighting lamp 11. The experimenter can place the experimental tools on the table surface of the frame 5. The settings of the adjustment mechanism 6 and the limiting mechanism 4 improve the practicality and stability of the clean bench. The contents not described in detail in this instruction belong to the prior art known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A clean bench, comprising a stand (2), a base (1), a guide groove (9), and an ultraviolet lamp (10), characterized in that: A protective glass plate (3) is installed on one side of the stand (2). The stand (2) is fixed above the platform (5). The ultraviolet lamp (10) and the lighting lamp (11) are installed at both ends inside the stand (2). Adjustment mechanisms (6) are installed at both ends of the base (1). The platform (5) is provided above the base (1). The guide groove (9) is opened inside the base (1) near the adjustment mechanism (6). The adjustment mechanism (6) is connected to the guide groove (9). The upper part of the adjustment mechanism (6) is connected to the platform (5). A transmission shaft (8) is installed on the inner side of the base (1) near the adjustment mechanism (6) through a bearing. A guide rod (7) is connected to the lower part of the platform (5) near the base (1). The guide rod (7) and the base (1) are slidably connected. Limiting mechanisms (4) are installed on both sides of the protective glass plate (3), and the limiting mechanisms (4) are connected to the upright frame (2); The limiting mechanism (4) includes a connecting rod (401), a limiting rod (402), a support block (403), and a fixing block (404). The protective glass plate (3) is fixed with equally spaced limiting rods (402) on both sides. The upright frame (2) is equipped with fixing blocks (404) on both sides near the limiting rods (402). The inner side of the fixing block (404) is slidably sleeved with a connecting rod (401), one end of the connecting rod (401) is connected to a support block (403), and the support block (403) is located below the limiting rod (402).

2. The clean bench according to claim 1, characterized in that: The drive shaft (8) is connected to the adjustment mechanism (6). The adjustment mechanism (6) includes a lifting rod (601), a lead screw (602), a handle (603), a first gear (604), and a second gear (605). The lifting rod (601) is slidably sleeved at both ends of the base (1). The upper part of the lifting rod (601) is connected to the frame (5).

3. The clean bench according to claim 2, characterized in that: The lifting rod (601) is slidably connected to the guide groove (9) at both ends. The lifting rod (601) is threaded with a lead screw (602). The lead screw (602) is connected to the base (1) through a bearing. One end of the lead screw (602) is fixedly connected to a second gear (605).

4. The clean bench according to claim 3, characterized in that: The first gear (604) is meshed with one side of the second gear (605). The inner side of the first gear (604) is fixedly connected to the transmission shaft (8). A handle (603) is fixedly connected to one end of the transmission shaft (8).

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