Air outlet structure and microscope based on small super-clean workbench

Abstract

This invention relates to the field of clean bench technology, specifically an air outlet structure and a microscope based on a small clean bench. The air outlet structure includes: a first air guide component with a first air guide cavity inside; a second air guide component located at the center of the bottom of the first air guide component and rotatably connected to it, with a second air guide cavity inside; a first air outlet component located outside the first air guide component, with its inlet end communicating with the first air guide cavity; and a second air outlet component located at the bottom of the second air guide component, with its inlet end communicating with the second air guide cavity. In use, the first air outlet component enables vertical airflow, while the second air outlet component enables rotary airflow. Because the first and second air outlet components are positioned differently, the air blown out by rotation will not directly contact the air blown downwards vertically, thus improving the ability to remove dust and microbial particles.

Description

Technical Field

[0001] This invention relates to the field of clean bench technology, specifically to an air outlet structure and a microscope based on a small clean bench. Background Technology

[0002] In cell culture experiments, it is necessary to process the cells in the culture dish while observing them. Therefore, it is necessary to install the microscope in a small laminar flow hood. The interior of the small laminar flow hood can blow air vertically downwards to remove dust and microbial particles, thus creating a dust-free and sterile working environment, which facilitates the observation or processing of various types of cultured cells under sterile conditions. To prevent air turbulence caused by the microscope being installed inside the small laminar flow hood, a rotating air outlet device is required.

[0003] For example, Chinese utility model patent application number "CN202221298661.3" provides a microscope based on a small clean bench. In use, a portion of the air is blown directly into the small clean bench through an air guide hood, while the remaining air is blown into the rotating shell and then out through a rotating air duct. This causes the rotating air duct and the rotating shell to rotate on a support, ensuring uniform airflow and pressure within the small clean bench. This prevents the microscope from obstructing the airflow within the clean bench, thus avoiding air turbulence and ensuring the cleanliness of the workbench.

[0004] The drawback of this device is that, since the rotating air duct is located inside the air guide shroud, when the air duct rotates and blows out air, the air blown out by the rotating air duct will come into direct contact with the air blown vertically downward through the air guide shroud and mix together inside the air guide shroud. This results in a weakening of the vertical downward blowing force and a reduction in the ability to carry away dust particles and microbial particles. Summary of the Invention

[0005] The purpose of this invention is to provide an air outlet structure and a microscope based on a small clean bench. The first air outlet can achieve vertical air outlet, and the second air outlet can achieve rotating air outlet. The first air outlet and the second air outlet are in different positions, so the air blown out by rotating will not directly contact the air blown out vertically downward, thus improving the ability to carry away dust particles and microbial particles.

[0006] To achieve the above objectives, the present invention provides the following technical solution: In the first technical solution, an air outlet structure includes: a first air guide member, the first air guide member having a first air guide cavity inside; a second air guide member, disposed at the center of the bottom of the first air guide member and rotatably connected to the first air guide member, the second air guide member having a second air guide cavity inside; a first air outlet member, disposed on the outside of the first air guide member, the air inlet end of the first air outlet member communicating with the first air guide cavity; and a second air outlet member, disposed at the bottom of the second air guide member, the air inlet end of the second air outlet member communicating with the second air guide cavity.

[0007] In the first technical solution, preferably, the first air guide includes an annular cover plate, and a first air gathering hood is fixedly disposed on the bottom surface of the annular cover plate. The first air gathering hood has an annular structure and an open top surface. The annular cover plate and the first air gathering hood together form the first air guide cavity.

[0008] In the first technical solution, preferably, the first air outlet component includes an air outlet box, the bottom surface of which is provided with a plurality of air outlet holes, and the interior of the air outlet box is connected to the first air guide cavity through a first ventilation pipe, which is a flexible hose.

[0009] In the first technical solution, preferably, it further includes a first air inlet component, which includes a first air inlet box, and the interior of the first air inlet box is connected to the first air guide cavity through a plurality of second ventilation pipes.

[0010] In the first technical solution, preferably, a wind baffle is fixedly provided inside the first air guide cavity and on the bottom surface of the annular cover plate. The top width of the wind baffle is greater than the bottom width. The first ventilation pipe and the second ventilation pipe are both provided on the top surface of the annular cover plate and are respectively provided on both sides of the wind baffle.

[0011] In the first technical solution, preferably, an annular baffle is fixedly provided on the bottom surface of the annular cover plate. The annular baffle is located inside the first wind-gathering hood. The second air guide is located between the first wind-gathering hood and the annular baffle. The second air guide includes a second wind-gathering hood. The second wind-gathering hood has an annular structure and the side wall facing the annular baffle is open. The annular baffle and the second wind-gathering hood together form the second air guide cavity.

[0012] In the first technical solution, preferably, it further includes a second air inlet assembly, the second air inlet assembly including a second air inlet box, the interior of the second air inlet box being connected to the second air guide cavity through a plurality of third ventilation pipes, the second air guide cavity being provided with a plurality of radially and uniformly distributed force plates, the force plates being fixedly connected to the side wall of the second air guide cavity.

[0013] In the first technical solution, preferably, the plurality of third ventilation pipes are all bent pipes and are evenly distributed radially. Each of the stress plates has a ventilation notch at its bottom. The bottom surface of the second air guide cavity has a plurality of ventilation grooves. The positions of the plurality of ventilation grooves and the plurality of ventilation notches correspond one-to-one. The second air outlet includes a fourth ventilation pipe. The top of the fourth ventilation pipe is fixedly set on the bottom surface of the second air gathering cover and communicates with the second air guide cavity. The bottom of the fourth ventilation pipe has a horizontally set fifth ventilation pipe.

[0014] In the second technical solution, a microscope based on a small clean bench includes an air outlet structure as described in the first technical solution, and also includes an operating box. The microscope body is located at the bottom of the operating box, the air outlet structure is located at the top of the operating box, the first air outlet component is located on the inner side wall of the operating box, and a filter assembly is located on the top surface of the operating box.

[0015] In the second technical solution, preferably, an exhaust component is provided below the filter assembly, the exhaust component includes two air outlets, and the two air outlets of the exhaust component are respectively connected to the first air guide cavity and the second air guide cavity.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (i) When the present invention is in use, the first air outlet can achieve vertical air outlet and the second air outlet can achieve rotating air outlet. The first air outlet and the second air outlet are in different positions, so the air blown out by rotating will not directly contact the air blown out vertically downward, thus improving the ability to carry away dust particles and microbial particles.

[0018] (II) In use, the present invention maintains a positive pressure state inside the operating chamber by introducing positive pressure air, preventing outside air from entering the chamber through the opening at the front. The microscope body allows for the observation and processing of various types of cultured cells and stem cells under sterile conditions. Attached Figure Description

[0019] Figure 1 This is an isometric view of the air outlet structure at one angle in this invention;

[0020] Figure 2 This is an isometric view of the air outlet structure in this invention from another angle;

[0021] Figure 3 This is an isometric view of the first air guide component in this invention;

[0022] Figure 4 This is a front sectional view of the first air guide component in this invention;

[0023] Figure 5 This is an isometric view of the first air outlet component in this invention;

[0024] Figure 6 This is an isometric view of the second air guide and the second air outlet in this invention;

[0025] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0026] Figure 8 This is an isometric view of the first air intake assembly in this invention;

[0027] Figure 9 This is an isometric view of the second air intake assembly in this invention;

[0028] Figure 10 This is an isometric view of the microscope based on a small clean bench in this invention;

[0029] Figure 11 This is an axonometric sectional view of the microscope based on a small clean bench in this invention.

[0030] Figure 12 This is a front sectional view of the filter assembly and the exhaust assembly in this invention.

[0031] The reference numerals in the figures include:

[0032] 1-First air guide component, 11-First air guide cavity, 12-Annular cover plate, 13-First wind concentrator, 14-Wind baffle block, 15-Annular baffle plate, 2-Second air guide component, 21-Second air guide cavity, 22-Second wind concentrator, 221-Ventilation groove, 23-Strength plate, 231-Ventilation notch, 3-First air outlet component, 31-Air outlet box, 311-Air outlet hole, 32-First ventilation pipe, 4-Second air outlet component, 41-Fourth passage 42-Fifth ventilation duct, 5-First air inlet assembly, 51-First air inlet box, 52-Second ventilation duct, 6-Second air inlet assembly, 61-Second air inlet box, 62-Third ventilation duct, 7-Operation box, 8-Microscope body, 9-Filter assembly, 91-Filter, 92-Pre-filter, 93-HEPA filter, 10-Exhaust assembly, 101-Exhaust box, 102-Exhaust duct, 103-Exhaust fan. Detailed Implementation

[0033] 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.

[0034] Example 1

[0035] Please see Figure 1-9 This invention provides a technical solution: an air outlet structure including a first air guide 1, a second air guide 2, a first air outlet 3, and a second air outlet 4. The first air guide 1 has a first air guide cavity 11 inside, and the second air guide 2 has a second air guide cavity 21 inside. The air inlet end of the first air outlet 3 is connected to the first air guide cavity 11, and the air inlet end of the second air outlet 4 is connected to the second air guide cavity 21. The second air guide 2 is rotatably connected to the first air guide 1. When the second air guide 2 rotates, it can drive the second air outlet 4 to rotate together, causing the second air outlet 4 to rotate and emit air. Because the first air outlet 3 and the second air outlet 4 are in different positions, the air blown out by the second air outlet 4 will impact the outer surface of the first air outlet 3, rather than directly contacting the vertically downward-blown air, so the force of the vertically downward-blown air is not weakened.

[0036] Please see Figure 1-5 and Figure 11 The first air guide component 1 includes an annular cover plate 12 and a first air concentrator hood 13, which together form a first air guide cavity 11. The first air outlet component 3 includes an air outlet box 31 and a first ventilation pipe 32. The bottom surface of the air outlet box 31 is provided with several air outlet holes 311. When the air in the first air guide cavity 11 enters the air outlet box 31 through the first ventilation pipe 32, it can be blown vertically downward through the several air outlet holes 311. The first ventilation pipe 32 is a flexible hose, so when the air outlet structure is installed inside the operating box 7, the first air outlet component 3 can be adjusted to the most suitable position according to the actual situation. At this time, the air blown out by the rotating air outlet component 4 will hit the outer surface of the air outlet box 31, change its direction and become vertically moving air, and merge with the air blown out through the air outlet holes 311, which improves the ability to carry away dust particles and microbial particles.

[0037] Please see Figure 1-7 and Figure 11The first air guide 1 also includes an annular baffle 15, and the second air guide 2 is disposed between the first air concentrator 13 and the annular baffle 15. The second air guide 2 includes a second air concentrator 22 and several force-bearing plates 23. The annular baffle 15 and the second air concentrator 22 together form a second air guide cavity 21. Annular protrusions are provided on the outer surface of the second air concentrator 22, and annular grooves are provided on the outer side walls of the first air concentrator 13 and the second air concentrator 22. The annular protrusions are disposed in the annular grooves and can slide along the inner wall of the annular grooves. When external air enters the second air guide cavity 21, it can push several force-bearing plates 23 to move. The force-bearing plates 23 drive the second air concentrator 22 to rotate, and the second air concentrator 22 drives the second air outlet 4 to rotate. The second air outlet 4 includes a fourth ventilation pipe 41 and a fifth ventilation pipe 42. Air in the second air guide cavity 21 can enter the fourth ventilation pipe 41 and be blown out horizontally through the fifth ventilation pipe 42. After the air outlet structure is installed inside the operating box 7, when the second air concentrator 22 and the fourth ventilation pipe 41 rotate together, the air outlet is uniform, and the pressure inside the operating box 7 is uniform. This prevents the air inside the operating box 7 from becoming turbulent due to the occupation of the microscope body 8, ensuring that the operating box 7 is always in a clean state. The air blown out through the fifth ventilation pipe 42 can impact the outer surface of the air outlet box 31, and the air blown out of the bottle will change direction, becoming vertically moving air, which improves the ability to carry away dust particles and microbial particles.

[0038] Example 2

[0039] Please see Figure 1-12 A microscope based on a small clean bench includes the air outlet structure described in Embodiment 1, and further includes an operating box 7, a microscope body 8, a filter assembly 9, and an exhaust assembly 10. The air outlet structure is located at the top inside the operating box 7. In this embodiment, there are four first air outlet components 3, respectively located on the four inner side walls of the operating box 7. The filter assembly 9 includes a filter 91, a pre-filter 92, and a HEPA filter 93. The exhaust assembly 10 includes an exhaust box 101, two exhaust pipes 102, and two exhaust fans 103. The exhaust assembly 10 is located above the air outlet structure, and the filter assembly 9 is located above the exhaust assembly 10. When the exhaust assembly 10 is working, the two exhaust fans 103 simultaneously draw in air. External air is filtered sequentially through the filter 91, the pre-filter 92, and the HEPA filter 93, enters the exhaust box 101, and is then exhausted through the two exhaust pipes 102. The air outlet structure also includes a first air inlet assembly 5 and a second air inlet assembly 6. The exhaust assembly 10 can send the air in the two exhaust pipes 102 into the first air guide cavity 11 and the second air guide cavity 21 respectively through the first air inlet assembly 5 and the second air inlet assembly 6.

[0040] Please see Figure 1-5 , Figure 8 and Figure 11-12The first air intake assembly 5 includes a first air intake box 51 and several second ventilation pipes 52. Air in one of the exhaust pipes 102 can first enter the first air intake box 51, and then enter the several second ventilation pipes 52. Air in the several second ventilation pipes 52 can enter the first air guide cavity 11. A baffle block 14 is fixedly installed in the first air guide cavity 11 and on the bottom surface of the annular cover plate 12. The first ventilation pipe 32 and the second ventilation pipe 52 are respectively located on both sides of the baffle block 14. The baffle block 14 forces the air entering the first air guide cavity 11 to form a U-shaped airflow path, ensuring that the air in the first air guide cavity 11 can smoothly enter the first ventilation pipe 32, rather than circling within the first air guide cavity 11.

[0041] Please see Figure 1-7 and Figure 9-12 The second air inlet assembly 6 includes a second air inlet box 61 and several third ventilation pipes 62. Air from another exhaust pipe 102 can first enter the second air inlet box 61, then enter the several third ventilation pipes 62, and the air from the several third ventilation pipes 62 can enter the second air guide cavity 21. The several third ventilation pipes 62 are all curved pipes and are evenly distributed radially. The several third ventilation pipes 62 are all fixedly mounted on the annular baffle 15. Therefore, when the air entering the second air guide cavity 21 comes into contact with the force plate 23, it exerts a large pressure on the force plate 23, causing the force plate 23 to move rapidly. In this embodiment, there are three second air outlets 4, all located at the bottom of the second air guide 2. Each force plate 23 has a ventilation notch 231 at its bottom, and several ventilation grooves 221 are provided on the bottom surface of the second air guide cavity 21. Because the second air guide cavity 21 is divided into several spaces by several force-bearing plates 23, the cooperation between the ventilation groove 221 and the ventilation notch 231 ensures that each space in the second air guide cavity 21 is interconnected when several third ventilation pipes 62 supply air into the second air guide cavity 21. Therefore, when the second air concentrator 22 rotates, the air in the second air guide cavity 21 can continuously enter the fourth ventilation pipe 41 without interruption.

[0042] In summary, during use, the first air outlet 3 enables vertical airflow, while the second air outlet 4 enables rotary airflow. The different positions of the first and second air outlets ensure that the rotary-blown air does not directly contact the vertically downward-blown air, thus improving the ability to remove dust and microbial particles. The introduction of positive pressure air maintains a positive pressure state inside the operating chamber 7, preventing outside air from entering through the front opening. The microscope body 8 allows for the observation and processing of various types of cultured cells and stem cells under sterile conditions.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An air outlet structure, characterized in that, include: A first air guide component, wherein the interior of the first air guide component is provided with a first air guide cavity; The second air guide is located at the center of the bottom of the first air guide and is rotatably connected to the first air guide. The second air guide has a second air guide cavity inside. The first air outlet is located outside the first air guide, and the air inlet of the first air outlet is connected to the first air guide cavity. The second air outlet is located at the bottom of the second air guide, and the air inlet of the second air outlet is connected to the second air guide cavity; The first air guide includes an annular cover plate, and a first air gathering hood is fixedly provided on the bottom surface of the annular cover plate. The first air gathering hood has an annular structure and an open top surface. The annular cover plate and the first air gathering hood together form the first air guide cavity. The first air outlet component includes an air outlet box, the bottom surface of which is provided with a plurality of air outlet holes, and the interior of the air outlet box is connected to the first air guide cavity through a first ventilation pipe, which is a flexible hose. It also includes a first air intake assembly, which includes a first air intake box, and the interior of the first air intake box is connected to the first air guide cavity through a plurality of second ventilation pipes; A windbreak block is fixedly installed inside the first air guide cavity and on the bottom surface of the annular cover plate. The top width of the windbreak block is greater than the bottom width. The first ventilation pipe and the second ventilation pipe are both installed on the top surface of the annular cover plate and are respectively installed on both sides of the windbreak block.

2. The air outlet structure according to claim 1, characterized in that, An annular baffle is also fixedly provided on the bottom surface of the annular cover plate. The annular baffle is located inside the first wind-gathering hood. The second air guide is located between the first wind-gathering hood and the annular baffle. The second air guide includes a second wind-gathering hood. The second wind-gathering hood has an annular structure and the side wall facing the annular baffle is open. The annular baffle and the second wind-gathering hood together form the second air guide cavity.

3. The air outlet structure according to claim 2, characterized in that, It also includes a second air inlet assembly, which includes a second air inlet box. The interior of the second air inlet box is connected to the second air guide cavity through several third ventilation pipes. The second air guide cavity is provided with several radially and evenly distributed force plates, and the force plates are fixedly connected to the side wall of the second air guide cavity.

4. The air outlet structure according to claim 3, characterized in that, The third ventilation pipes are all bent and are evenly distributed radially. Each of the stress plates has a ventilation notch at the bottom. The bottom surface of the second air guide cavity has a number of ventilation grooves. The positions of the ventilation grooves and the ventilation notches correspond one-to-one. The second air outlet includes a fourth ventilation pipe. The top of the fourth ventilation pipe is fixedly set on the bottom surface of the second air gathering cover and communicates with the second air guide cavity. The bottom of the fourth ventilation pipe has a horizontally set fifth ventilation pipe.

5. A microscope based on a small clean bench, comprising the air outlet structure as described in claim 1, characterized in that, It also includes an operating box, the bottom of which is equipped with a microscope body, the air outlet structure is located at the top of which is equipped with an air outlet component, the first air outlet component is located on the inner side wall of the operating box, and the top surface of the operating box is equipped with a filter assembly.

6. The microscope based on a small clean bench according to claim 5, characterized in that, Below the filter assembly is an exhaust assembly, which includes two air outlets that are respectively connected to the first air guide cavity and the second air guide cavity.

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