Air return structure of clean room

Abstract

The utility model discloses a clean room air return structure which comprises a fan, the bottom of a gooseneck pipe is communicated with an air return port through a hose, an adjusting mechanism is arranged below the fan and comprises an annular plate, a circular plate, a vertical cylinder, a clamping block and a rod body, the top of the annular plate is fixedly connected with the bottom of the circular plate, and the top of the circular plate is fixedly connected with the bottom of the vertical cylinder. The inner side of the circular plate is fixedly connected with the lower portion of the outer wall of the gooseneck pipe, the top of the circular plate is fixedly connected with a rod body, the outer side of the rod body is fixedly connected with a vertical cylinder fixedly connected with the top plate, an annular groove in the bottom of the annular plate is movably connected with a clamping block, and the bottom of the clamping block is fixedly connected with the top of an air return opening. The utility model relates to the technical field of clean rooms, realizes the adjustment of the height and the transverse angle of the return air inlet through the matching among the return air inlet, the bolt and the clamping block, and solves the problems that the position of the return air inlet of the existing structure is fixed and is inconvenient to adjust according to the actual environment, so that the air circulation is not smooth or dead angles are formed.

Description

Technical Field

[0001] The utility model relates to the technical field of clean rooms, in particular to a clean room air return structure. Background Art

[0002] Clean room refers to a well-sealed space where parameters such as air cleanliness, temperature, humidity, pressure, and noise are controlled as required. The development of clean rooms is closely linked to modern industry and cutting-edge technology. The environmental requirements of the precision machinery industry (such as gyroscopes, micro bearings, etc.) and the semiconductor industry (such as large-scale integrated circuit production) have promoted the development of clean room technology. When the air in the clean room is circulated, a clean room return air structure is provided.

[0003] The existing structure mainly consists of a return air inlet, a fan and a purification device. The return air inlet draws air in and purifies it through the purification device.

[0004] However, the position of the return air vent in the existing structure is fixed, which is not convenient to adjust according to the actual environment, resulting in poor air circulation or the formation of dead corners. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a clean room return air structure, which solves the problem that the return air outlet of the prior structure is fixed and cannot be adjusted according to the actual environment, thus resulting in poor air circulation or the formation of dead corners.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a clean room return air structure, including a fan, the input end of the fan is connected to a purification device, the input end of the purification device is connected to a curved pipe, the outer side of the curved pipe passes through a top plate, the bottom of the curved pipe is connected to a gooseneck pipe, the bottom of the gooseneck pipe is connected to a return air outlet through a hose, an adjustment mechanism is arranged below the fan, the adjustment mechanism includes an annular plate, a circular plate, a vertical cylinder, a clamping block and a rod body, the top of the annular plate is fixedly connected to the bottom of the circular plate, the inner side of the circular plate is fixedly connected to the lower part of the outer wall of the gooseneck pipe, the top of the circular plate is fixedly connected to the rod body, the outer side of the rod body is fixedly connected to a vertical cylinder fixedly connected to the top plate, the bottom annular groove of the annular plate is movably connected to a clamping block, and the bottom of the clamping block is fixedly connected to the top of the return air outlet.

[0007] Preferably, the outer side of the curved pipe is fixed with a horizontal plate through a bracket, the bottom of the horizontal plate is rotatably connected to a screw rod through a bearing, the outer side of the screw rod is threadedly connected to a sleeve, the front side of the sleeve is fixedly connected to the front side of the rod body, and the output end of the fan is connected to an air outlet duct that penetrates the top plate.

[0008] Preferably, a first gear is fixedly connected to the outer side of the screw rod, a second gear is meshingly connected to the outer side of the first gear, a motor is fixedly connected to one side of the second gear, and the top of the motor is fixedly connected to the bottom of the horizontal plate.

[0009] Preferably, the upper groove of the clamping block is threadedly connected with a bolt, and the outer side of the bolt is threadedly connected to the lower through hole of the annular plate.

[0010] Preferably, a dustproof net is attached to the front of the return air outlet, and two sides of the dustproof net are fixedly connected to the front of the return air outlet by screws. Beneficial Effects

[0011] The utility model provides a clean room return air structure, which has the following beneficial effects: the clean room return air structure realizes the adjustment of the return air outlet height and lateral angle through the cooperation between the return air outlet, bolts and clamping blocks, and solves the problem that the return air outlet position of the existing structure is fixed and it is not convenient to adjust according to the actual environment, thus causing poor air circulation or forming dead corners.

[0012] Through the cooperation between the horizontal plate, the first gear and the motor, the return air outlet is electrically adjusted. The user can make fine adjustments according to actual usage without the need for frequent climbing operations. At the same time, large-sized dust can also be filtered during return air. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the appearance of the utility model;

[0015] Figure 3 for Figure 1 Schematic diagram of the structure of the middle return air outlet, bolts and clamping blocks;

[0016] Figure 4 for Figure 1 Schematic diagram of the structure of the middle cross plate, the first gear and the motor.

[0017] In the figure: 1. fan, 2. air outlet duct, 3. purification equipment, 4. curved pipe, 5. gooseneck pipe, 6. hose, 7. return air outlet, 8. top plate, 9. round plate, 10. bracket, 11. horizontal plate, 12. screw, 13. first gear, 14. second gear, 15. motor, 16. sleeve, 17. rod body, 18. vertical cylinder, 19. bolt, 20. block, 21. annular plate, 22. dust net. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The position of the return air vent in the existing structure is fixed, which is not convenient to adjust according to the actual environment, resulting in poor air circulation or dead corners.

[0020] In view of this, a clean room return air structure is provided, which realizes the adjustment of the height and lateral angle of the return air outlet through the cooperation between the return air outlet, bolts and blocks, and solves the problem that the position of the return air outlet in the existing structure is fixed and it is not convenient to adjust according to the actual environment, thus causing poor air circulation or forming dead corners.

[0021] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0022] Embodiment 1: Figure 1-3 It can be seen that a clean room return air structure includes a fan 1, the direction of the fan 1 is not limited, the input end of the fan 1 is connected to the purification device 3, the input end of the purification device 3 is connected to the curved pipe 4, the outer side of the curved pipe 4 is penetrated by a top plate 8, the bottom of the curved pipe 4 is connected to a gooseneck pipe 5, the bottom of the gooseneck pipe 5 is connected to the return air port 7 through a hose 6, and an adjustment mechanism is arranged below the fan 1, the adjustment mechanism includes an annular plate 21, a circular plate 9, a vertical cylinder 18, a block 20 and a rod body 17, the top of the annular plate 21 and the bottom of the circular plate 9 are connected. The inner side of the circular plate 9 is fixedly connected to the lower side of the outer wall of the gooseneck tube 5, and the gooseneck tube 5 can be extended and retracted arbitrarily, wherein the hose 6 is arranged below the circular plate 9, and does not affect the fine adjustment angle of the return air outlet 7 below. The top of the circular plate 9 is fixedly connected with a rod body 17, and the outer side of the rod body 17 is fixedly connected with a vertical cylinder 18 fixedly connected to the top plate 8. The bottom annular groove of the annular plate 21 is movably connected with a clamping block 20, and the clamping block 20 can move in the bottom annular groove of the annular plate 21, and the bottom of the clamping block 20 is fixedly connected to the top of the return air outlet 7;

[0023] In the specific implementation process, it is worth pointing out that the adjustment of the height and the lateral angle of the return air outlet 7 is achieved through the cooperation between the vertical tube 18, the block 20 and the rod body 17, which solves the problem that the position of the return air outlet of the existing structure is fixed and it is not convenient to adjust it according to the actual environment, thereby causing poor air circulation or forming a dead angle.

[0024] Specifically, when using the clean room return air structure, the user can adjust the height of the lower return air outlet 7 through the rod body 17. When the lateral angle needs to be adjusted, the return air outlet 7 is rotated. The return air outlet 7 is rotated through the limit between the block 20 and the annular plate 21 to achieve the adjustment of the lateral angle.

[0025] Embodiment 2: By Figure 1 , 2 As can be seen from Figure 4, the outer side of the curved pipe 4 is fixedly connected to a horizontal plate 11 through a bracket 10, and the bottom of the horizontal plate 11 is rotatably connected to a screw rod 12 through a bearing, and the screw rod 12 can rotate through the bearing, and the outer side of the screw rod 12 is threadedly connected to a sleeve 16, and the front side of the sleeve 16 is fixedly connected to the front side of the rod body 17, and the output end of the fan 1 is connected to the air outlet pipe 2 penetrating the top plate 8;

[0026] In the specific implementation process, it is worth pointing out that when the screw 12 rotates, it can drive the sleeve 16 to move, and when the sleeve 16 moves, it can drive the rod body 17 to move up and down;

[0027] Furthermore, a first gear 13 is fixedly connected to the outer side of the screw rod 12, a second gear 14 is meshedly connected to the outer side of the first gear 13, a motor 15 is fixedly connected to one side of the second gear 14, and the model of the motor 15 is not limited. The top of the motor 15 is fixedly connected to the bottom of the horizontal plate 11;

[0028] In the specific implementation process, it is worth pointing out that the motor 15 can drive the screw 12 to rotate through the meshing of the first gear 13 and the second gear 14, thereby realizing electric control, and the user can control it through a remote device. The specific connection method and principle are prior arts and are not limited here.

[0029] Furthermore, the upper groove of the clamping block 20 is threadedly connected with a bolt 19, and the outer side of the bolt 19 is threadedly connected with the lower through hole of the annular plate 21;

[0030] In the specific implementation process, it is worth pointing out that a threaded hole is provided below the annular plate 21, and after the user rotates the clamping block 20, the bolt 19 can be screwed into the corresponding threaded hole of the annular plate 21 for fixing;

[0031] Furthermore, a dustproof net 22 is attached to the front of the return air outlet 7, and both sides of the dustproof net 22 are fixedly connected to the front of the return air outlet 7 by screws;

[0032] In the specific implementation process, it is worth pointing out that the dust screen 22 can filter large-sized impurities entering the curved pipe 4, thereby filtering the incoming air;

[0033] Specifically, on the basis of the above-mentioned embodiment 1, the electric adjustment of the return air outlet 7 is realized through the cooperation between the horizontal plate 11, the first gear 13 and the motor 15. The user can make fine adjustments according to actual usage without the need for frequent climbing operations. At the same time, large-sized dust can also be filtered when returning air.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0035] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clean room return air structure, comprising a fan (1), characterized in that: The input end of the fan (1) is connected to a purification device (3), the input end of the purification device (3) is connected to a curved pipe (4), the outer side of the curved pipe (4) is penetrated by a top plate (8), the bottom of the curved pipe (4) is connected to a gooseneck pipe (5), the bottom of the gooseneck pipe (5) is connected to a return air port (7) via a hose (6), and an adjustment mechanism is provided below the fan (1); The adjustment mechanism comprises an annular plate (21), a circular plate (9), a vertical cylinder (18), a clamping block (20) and a rod body (17); The top of the annular plate (21) is fixedly connected to the bottom of the circular plate (9); the inner side of the circular plate (9) is fixedly connected to the lower side of the outer wall of the gooseneck tube (5); the top of the circular plate (9) is fixedly connected to a rod body (17); the outer side of the rod body (17) is fixedly connected to a vertical cylinder (18) fixedly connected to the top plate (8); the bottom annular groove of the annular plate (21) is movably connected to a clamping block (20); the bottom of the clamping block (20) is fixedly connected to the top of the return air outlet (7).

2. A clean room return air structure according to claim 1, characterized in that: The outer side of the curved pipe (4) is fixedly connected to a horizontal plate (11) via a bracket (10); the bottom of the horizontal plate (11) is rotatably connected to a screw rod (12) via a bearing; the outer side of the screw rod (12) is threadedly connected to a sleeve (16); the front side of the sleeve (16) is fixedly connected to the front side of a rod body (17); and the output end of the fan (1) is connected to an air outlet pipe (2) penetrating the top plate (8).

3. A clean room return air structure according to claim 2, characterized in that: A first gear (13) is fixedly connected to the outer side of the screw rod (12); a second gear (14) is meshingly connected to the outer side of the first gear (13); a motor (15) is fixedly connected to one side of the second gear (14); and a top of the motor (15) is fixedly connected to a bottom of the horizontal plate (11).

4. A clean room return air structure according to claim 1, characterized in that: The upper groove of the clamping block (20) is threadedly connected to a bolt (19), and the outer side of the bolt (19) is threadedly connected to the lower through hole of the annular plate (21).

5. A clean room return air structure according to claim 1, characterized in that: A dustproof net (22) is attached to the front side of the return air outlet (7), and two sides of the dustproof net (22) are fixedly connected to the front side of the return air outlet (7) by means of screws.

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