Flow guide plate assembly of clean bench

Abstract

The utility model discloses a flow guide plate assembly of a clean bench, which comprises a first flat plate, a second flat plate and a flow guide plate, the second flat plate is arranged at one end, close to the operation door, of the top of the inner cavity of the box body, and the second flat plate is lower than the first flat plate; the inclined plate is fixedly arranged at the adjacent ends of the first flat plate and the second flat plate, and the included angle between the inclined plate and the second flat plate is an obtuse angle; and the positioning assembly is fixedly arranged at the top of the inner cavity of the box body and is used for overlapping and positioning a whole formed by the first flat plate, the second flat plate and the inclined plate. According to the flow guide plate, the flow guide plate body composed of the first flat plate, the second flat plate and the inclined plate is arranged, the normal flow uniformizing effect is guaranteed, meanwhile, part of clean air is guided through the inclined plate, the part of clean air is converged to the position above the second flat plate close to one side of the operation door, and finally the flow speed of the clean air at the position of the operation door is increased; and the isolation effect on external air and particles is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clean workbenches, in particular to a guide plate assembly for a clean workbench. Background Art

[0002] A clean bench is an air purification device that provides a localized, dust-free and sterile working environment. It is widely used in fields such as biological sciences, medicine, and chemistry, primarily to ensure sterile conditions during experimental operations. The basic operating principle of a vertical laminar flow clean bench is to filter the external air using a filtration structure such as a high-efficiency filter. The filtered clean air is then introduced through the top of the workbench housing. After being guided by a guide plate, it is blown evenly onto the workbench surface, forming a so-called "laminar flow." This blows particles that enter the work area out of the housing, ensuring that the air within the work area remains clean and preventing the impact of external contaminants.

[0003] The guide plate commonly used at present is a flat plate with air holes evenly opened on the plate. When the clean air passes through the guide plate, it is evenly distributed by the air holes and blown evenly onto the work surface. However, since the cross-section of the clean air outlet is generally smaller than the plane of the guide plate and corresponds to the center part of the guide plate, the wind speed around the guide plate is lower than that in the center. In actual use, when the operating door is opened, due to the low wind speed at the operating door, the wind curtain formed is difficult to resist the air outside the operating door and the particles can easily enter the workbench area from the operating door, affecting the cleanliness of the workbench.

[0004] To this end, the present application proposes a clean bench guide plate assembly to solve the above technical problems. Utility Model Content

[0005] The main purpose of the utility model is to solve the above-mentioned deficiencies and provide a clean workbench guide plate assembly, which increases the clean air flow rate at the operating door without changing the other main structures of the clean workbench and improves the blocking effect of external air and particles.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A clean workbench guide plate assembly includes: a first flat plate, arranged at the top of the inner cavity of a box on the clean workbench; a second flat plate, arranged at one end of the top of the inner cavity of the box near the operating door, and the height of the second flat plate is lower than the first flat plate; an inclined plate, fixedly arranged at the adjacent ends of the first and second flat plates, and the angle between the inclined plate and the second flat plate is an obtuse angle; a positioning assembly, fixedly arranged at the top of the inner cavity of the box, and used for overlapping and positioning the whole composed of the first flat plate, the second flat plate and the inclined plate.

[0008] Furthermore, a first insertion strip is provided at one end of the first plate away from the operating door, and a second insertion strip is provided at one end of the second plate close to the operating door. The first plate, the second plate, the inclined plate, the first insertion strip and the second insertion strip are formed as one piece, and ventilation holes are evenly arranged on the first plate, the second plate and the inclined plate.

[0009] Furthermore, the positioning assembly includes a plug-in assembly fixedly arranged on the side of the inner wall of the box where the operating door is located and on the opposite side thereof, for plugging the first insertion strip and the second insertion strip, and a overlapping assembly symmetrically fixedly arranged on the other two sides of the inner wall of the box, for overlapping the first flat plate, the second flat plate and the inclined plate to form a whole.

[0010] Furthermore, the plug-in assembly includes a slot for plugging and cooperating with the first plug-in strip and the second plug-in strip, and a mounting skirt fixedly provided on an outer wall of the slot.

[0011] Furthermore, the overlapping assembly includes overlapping plates for overlapping both sides of the whole formed by the first flat plate, the second flat plate and the inclined plate, and a fixed plate fixedly arranged on the side of the overlapping plate close to the inner wall of the box, and the fixed plate is fixedly arranged on the inner wall of the box.

[0012] Furthermore, a support rod is fixedly connected between the two overlapping plates, and the support rod abuts against the bent connection between the first flat plate and the inclined plate.

[0013] The beneficial effects of the present invention are as follows:

[0014] The utility model provides a guide plate body composed of a first flat plate, a second flat plate and an inclined plate. While ensuring the normal uniform flow of the guide plate, the inclined plate is used to guide a portion of the clean air, so that the clean air is gathered above the second flat plate on the side close to the operating door, and finally the flow rate of the clean air at the operating door is increased. The clean air with a higher flow rate makes it difficult for external air and particles to enter the workbench area through the operating door. The above-mentioned guide plate body is installed by providing a positioning component, which provides a stable support and is convenient for disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 This is a schematic diagram of the installation position of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 4 This is a schematic structural diagram of a plug-in assembly according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the overlapping assembly according to one embodiment of the present utility model;

[0021] Figure 6 This is an overall side view of the plate and insert structure of one embodiment of the present invention.

[0022] In the figure: 1. First flat plate; 2. Box body; 3. Second flat plate; 4. Operating door; 5. Inclined plate; 6. Positioning assembly; 61. Plug assembly; 611. Slot; 612. Mounting skirt; 62. Overlap assembly; 621. Overlap plate; 622. Fixed plate; 7. First insert; 8. Second insert; 9. Ventilation hole; 10. Support rod. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] like Figure 1-6 As shown, the utility model provides a clean bench guide plate assembly, comprising:

[0025] The first plate 1 is mounted on the top of the clean bench's housing 2. The second plate 3 is mounted on the top of the housing 2, near the operating door 4. The second plate 3 is lower than the first plate 1. The inclined plate 5 is fixed to the adjacent ends of the first and second plates 1, 3, and forms an obtuse angle with the second plate 3. The positioning assembly 6 is fixed to the top of the housing 2 and serves to overlap and position the first, second, and inclined plates 1, 3, and 5. A first insertion bar 7 is mounted on the end of the first plate 1 away from the operating door 4, and a second insertion bar 8 is mounted on the end of the second plate 3 near the operating door 4. The first plate 1, second plate 3, inclined plate 5, first insertion bar 7, and second insertion bar 8 are integrally formed. Ventilation holes 9 are evenly distributed throughout the first, second, and inclined plates 5.

[0026] During use, when the clean air blows to the guide plate body composed of the first plate 1, the second plate 3 and the inclined plate 5, the air blown to the first plate 1 and the second plate 3 is evenly blown to the work surface after the uniform flow action of the air holes 9, and a part of the air blown to the inclined plate 5 passes through the air holes 9 and blows to the work surface, and the other part is blocked by the inclined plate 5 and rebounds to the top of the second plate 3, and passes through the second plate 3 together with the original clean air above the second plate 3, thereby increasing the clean air flow passing through the second plate 3 per unit time, thereby increasing the clean air flow rate below the second plate 3, and the second plate 3 is close to the operating door 4, and the higher flow rate of clean air makes it difficult for external air and particles to enter the workbench area from the operating door 4.

[0027] In one embodiment, the positioning assembly 6 includes a plug-in assembly 61 fixedly arranged on the side of the inner wall of the box body 2 where the operating door 4 is located and on the opposite side thereof, for plugging the first insertion strip 7 and the second insertion strip 8, and a bridging assembly 62 symmetrically fixedly arranged on the other two sides of the inner wall of the box body 2, for bridging the entirety formed by the first flat plate 1, the second flat plate 3 and the inclined plate 5.

[0028] This design utilizes the interlocking connection between the plug assembly 61 and the first and second inserts 7 and 8 to initially position and secure the deflector body, consisting of the first and second flat plates 1, 3, and inclined plate 5, allowing it to be positioned and installed within the interior ceiling of the housing 2. The overlapping assembly 62, which overlaps both sides of the deflector body, further enhances the stability of the deflector body's positioning and installation. To install the deflector body, simply align the first and second inserts 7 and 8 with the plug assembly 61 and insert them directly, making installation and removal both convenient and easy.

[0029] In one embodiment, the plug-in assembly 61 includes a slot 611 for plugging and mating with the first plug-in strip 7 and the second plug-in strip 8 , and a mounting skirt 612 fixedly disposed on an outer wall of the slot 611 .

[0030] With this design, screws are used to fix the mounting skirt 612 to the inner wall of the box body 2 to fix the plug-in component 61, and the slot 611 is used to engage with the first plug-in strip 7 and the second plug-in strip 8 to fix the guide plate body composed of the first flat plate 1, the second flat plate 3 and the inclined plate 5.

[0031] In one embodiment, the overlapping assembly 62 includes a overlapping plate 621 for overlapping both sides of the whole formed by the first flat plate 1, the second flat plate 3 and the inclined plate 5, and a fixed plate 622 fixedly arranged on the side of the overlapping plate 621 close to the inner wall of the box body 2, and the fixed plate 622 is fixedly arranged on the inner wall of the box body 2.

[0032] With this design, the lap assembly 62 is fixed to the inner wall of the box body 2 by the fixing plate 622, and the lap plate 621 overlaps both sides of the guide plate body composed of the first flat plate 1, the second flat plate 3 and the inclined plate 5 to form a stable support therefor.

[0033] In one embodiment, a support rod 10 is fixedly connected between the two overlapping plates 621 , and the support rod 10 abuts against the bent connection between the first flat plate 1 and the inclined plate 5 .

[0034] Due to the influence of its own weight and the pressure exerted by the clean air, the bent connection between the first flat plate 1 and the inclined plate 5 is prone to deformation, affecting the wind guiding effect. Therefore, a support rod 10 is provided to provide additional support to this location to ensure its stability in use.

[0035] 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A clean bench guide plate assembly, characterized in that: include: A first flat plate (1) is arranged on the top of the inner cavity of the box (2) on the clean workbench; A second flat plate (3) is arranged at the top of the inner cavity of the box body (2) near one end of the operating door (4), and the height of the second flat plate (3) is lower than that of the first flat plate (1); An inclined plate (5) is fixedly arranged at adjacent ends of the first flat plate (1) and the second flat plate (3), and the angle between the inclined plate (5) and the second flat plate (3) is an obtuse angle; A positioning assembly (6) is fixedly arranged on the top of the inner cavity of the box body (2) and is used for overlapping and positioning the whole formed by the first flat plate (1), the second flat plate (3) and the inclined plate (5).

2. A clean bench guide plate assembly according to claim 1, characterized in that: A first inserting strip (7) is provided at one end of the first flat plate (1) away from the operating door (4), and a second inserting strip (8) is provided at one end of the second flat plate (3) close to the operating door (4). The first flat plate (1), the second flat plate (3), the inclined plate (5), the first inserting strip (7) and the second inserting strip (8) are integrally formed. Ventilation holes (9) are evenly distributed on the first flat plate (1), the second flat plate (3) and the inclined plate (5).

3. A clean bench guide plate assembly according to claim 2, characterized in that: The positioning assembly (6) comprises a plug-in assembly (61) fixedly arranged on one side of the inner wall of the box body (2) where the operating door (4) is located and on the opposite side thereof, for plugging the first plug-in strip (7) and the second plug-in strip (8), and a bridging assembly (62) symmetrically fixedly arranged on the other two sides of the inner wall of the box body (2), for bridging the first flat plate (1), the second flat plate (3) and the inclined plate (5) to form a whole.

4. A clean bench guide plate assembly according to claim 3, characterized in that: The plug-in assembly (61) comprises a slot (611) for plugging and matching with the first plug-in strip (7) and the second plug-in strip (8), and a mounting skirt (612) fixedly arranged on the outer wall of the slot (611).

5. A clean bench guide plate assembly according to claim 3, characterized in that: The overlapping assembly (62) comprises an overlapping plate (621) for overlapping both sides of an integral body formed by the first flat plate (1), the second flat plate (3) and the inclined plate (5), and a fixed plate (622) fixedly arranged on a side of the overlapping plate (621) close to the inner wall of the box body (2), wherein the fixed plate (622) is fixedly arranged on the inner wall of the box body (2).

6. A clean bench guide plate assembly according to claim 5, characterized in that: A support rod (10) is fixedly connected between the two overlapping plates (621), and the support rod (10) abuts against the bent connection between the first flat plate (1) and the inclined plate (5).

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