Ventilation device of clean room

Abstract

The utility model discloses a ventilation device of a clean room. The ventilation device comprises a ventilation assembly. The movable assembly comprises a first fixed rod, a first movable column, a telescopic spring, a second movable column, a supporting block, a fixed plate and a second fixed rod; the first fixed rods are fixedly connected to the two sides in the ventilation pipe, the first movable columns sleeve the centers of the outer surfaces of the first fixed rods, the telescopic springs are fixedly connected to the interiors of the first movable columns, the second movable columns are located at the outer ends of the telescopic springs, and the supporting blocks sleeve the interiors of the outer ends of the second movable columns. The fixing plates are fixedly connected to the outer sides of the supporting blocks, and the second fixing rods are fixedly connected to the two sides in the ventilation pipe. The clean room ventilation device solves the problem that when an existing clean room is used for ventilation, one pipeline is usually used for air outlet and air inlet, but an air outlet is communicated with an air inlet, impurities of outlet air can be retained in a ventilation pipe in the using process, and therefore pollution of the inlet air is caused.

Description

Technical Field

[0001] The utility model relates to the technical field of clean rooms, in particular to a ventilation device for a clean room. Background Art

[0002] A clean room is a space where people can move around and the air cleanliness reaches a specified level. Its function is to control the pollution of particles (dust particles) to meet the production of precision products and scientific experimental activities.

[0003] However, it still has the following disadvantages in actual use:

[0004] When ventilating existing clean rooms, one duct is usually used for both air outlet and air intake due to cost considerations. However, the air outlet and the air inlet are connected, which may cause impurities in the outlet air to be retained inside the ventilation duct during use, thereby causing contamination of the intake air. Utility Model Content

[0005] The utility model aims to provide a ventilation device for a clean room, so as to solve the problem proposed in the above background technology that, when ventilating the existing clean room, for cost considerations, one pipe is usually used for air outlet and air intake, but the air outlet and the air inlet are connected, which will cause impurities in the outlet air to be retained in the ventilation pipe during use, thereby causing pollution of the incoming air.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a ventilation device for a clean room, comprising:

[0008] A ventilation assembly, the ventilation assembly comprising a ventilation pipe;

[0009] A movable assembly, the movable assembly comprising a first fixed rod, a first movable column, a telescopic spring, a second movable column, a support block, a fixed plate, and a second fixed rod;

[0010] The first fixed rod is fixedly connected to the two side positions inside the ventilation pipe, the first movable column is sleeved at the central position of the outer surface of the first fixed rod, the telescopic spring is fixedly connected to the inner position of the first movable column, the second movable column is located at the outer end of the telescopic spring, the support block is sleeved to the inner position of the outer end of the second movable column, the fixed plate is fixedly connected to the outer side of the support block, and the second fixed rod is fixedly connected to the two side positions inside the ventilation pipe.

[0011] Further, the ventilation assembly also includes a filter screen, a first through hole and a second through hole;

[0012] The filter screen is fixedly connected to the two end positions inside the ventilation pipe, the first through hole is opened at the two end positions of the ventilation pipe, and the second through hole is opened at the central position of the bottom end of the ventilation pipe.

[0013] Furthermore, the fixing plate is sleeved on the outer surface of the second fixing rod, and the fixing plate is located at both sides of the interior of the ventilation pipe.

[0014] Furthermore, one end of the second movable column is located inside the first movable column, and the fixing plate is located inside the filter screen.

[0015] Furthermore, it also includes a prompt component, which includes a support rod, a limit plate, a movable circular plate and an elastic band;

[0016] The support rod is fixedly connected to the central top position inside the ventilation pipe, the limit plate is fixedly connected to the bottom end of the support rod, the movable circular plate is sleeved on the outer surface of the support rod, and the elastic band is fixedly connected to the central position of the bottom end of the ventilation pipe.

[0017] Furthermore, the movable circular plate is flush with the bottom end of the ventilation pipe, and the support rod penetrates the ventilation pipe and extends downward.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The utility model provides a movable assembly. When the ventilation duct is discharged or inlet, the wind drives the fixed plate to rotate outward. The rotation of the fixed plate drives the first movable column and the second movable column to rotate, thereby opening the fixed plate and allowing the ventilation duct to inlet or outlet air. When the ventilation duct is inletting or outlet air, since the second movable column is limited inside the first movable column, the first movable column blocks the second movable column, so that the fixed plate cannot rotate, and the inlet air cannot pass through the fixed plate to enter the air outlet, and the outlet air cannot pass through the fixed plate to enter the air inlet.

[0020] 2. Based on the first beneficial effect, by setting a prompt component, when wind flows from the inside of the second through hole, the movable circular plate is driven to move, and the movable circular plate moves upward or downward along the support rod. By knowing the position of the movable circular plate, it is possible to judge whether the ventilation duct is taking in or out air.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is the front view of the utility model;

[0024] Figure 2 This is a structural diagram of the ventilation assembly of the utility model;

[0025] Figure 3 This is a structural diagram of the active components of the utility model;

[0026] Figure 4 This is a structural diagram of the components of the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 11. Ventilation duct; 12. Filter; 13. First through hole; 14. Second through hole; 21. First fixed rod; 22. First movable column; 23. Telescopic spring; 24. Second movable column; 25. Support block; 26. Fixed plate; 27. Second fixed rod; 31. Support rod; 32. Limiting plate; 33. Movable circular plate; 34. Elastic band. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] See also Figure 1-3 As shown, this embodiment is a ventilation device for a clean room, comprising:

[0034] A ventilation assembly, the ventilation assembly comprising a ventilation pipe 11;

[0035] The movable assembly includes a first fixed rod 21, a first movable column 22, a telescopic spring 23, a second movable column 24, a support block 25, a fixed plate 26 and a second fixed rod 27;

[0036] The first fixed rod 21 is fixedly connected to the two sides of the ventilation pipe 11, the first movable column 22 is sleeved at the central position of the outer surface of the first fixed rod 21, the telescopic spring 23 is fixedly connected to the inner position of the first movable column 22, the second movable column 24 is located at the outer end of the telescopic spring 23, the support block 25 is sleeved to the inner position of the outer end of the second movable column 24, the fixed plate 26 is fixedly connected to the outer position of the support block 25, and the second fixed rod 27 is fixedly connected to the two sides of the ventilation pipe 11;

[0037] The first fixing rod 21 is used to support the first movable column 22, the second movable column 24 is used to support the telescopic spring 23, the telescopic spring 23 is used to limit the second movable column 24, the support block 25 is used to support the second movable column 24, the fixing plate 26 is used to support the support block 25, and the second fixing rod 27 is used to limit the fixing plate 26;

[0038] The ventilation assembly further includes a filter screen 12, a first through hole 13 and a second through hole 14;

[0039] The filter screen 12 is fixedly connected to the two ends of the ventilation pipe 11, the first through holes 13 are opened at the two ends of the ventilation pipe 11, and the second through hole 14 is opened at the center of the bottom end of the ventilation pipe 11;

[0040] The filter screen 12 is used to filter particles, the first through hole 13 is used for air intake and air outlet, and the second through hole 14 is used to connect the inside of the clean room with the ventilation pipe 11;

[0041] The fixing plate 26 is sleeved on the outer surface of the second fixing rod 27, and the fixing plate 26 is located at both sides of the ventilation pipe 11;

[0042] The fixing plate 26 can rotate along the second fixing rod 27. When the fixing plate 26 rotates, the second movable column 24 is driven to rotate through the supporting block 25.

[0043] One end of the second movable column 24 is located inside the first movable column 22 , and the fixing plate 26 is located inside the filter screen 12 ;

[0044] The second movable column 24 can move inside the first movable column 22. When the second movable column 24 moves inward, the telescopic spring 23 is compressed.

[0045] Working principle: when the wind flows in the forward direction, the wind drives the fixed plate 26 to rotate along the second fixed rod 27, the rotation of the fixed plate 26 drives the support block 25 to rotate, the support block 25 drives the second movable column 24 to rotate, the second movable column 24 moves outward and drives the telescopic spring 23 to stretch, so that the wind flows between the two sets of fixed plates 26. When the wind flows in the reverse direction, since the second movable column 24 is inside the first movable column 22 and is blocked by the telescopic spring 23, the second movable column 24 cannot rotate in the reverse direction, thereby making the support block 25 and the fixed plate 26 unable to rotate, and the fixed plate 26 blocks the inside of the ventilation pipe 11 to prevent the wind from flowing in the reverse direction.

[0046] See also Figure 4 As shown, this embodiment is based on the above embodiment and also includes:

[0047] A prompting assembly, which includes a support rod 31, a limit plate 32, a movable circular plate 33 and an elastic band 34;

[0048] The support rod 31 is fixedly connected to the top central position of the ventilation pipe 11, the limit plate 32 is fixedly connected to the bottom end of the support rod 31, the movable circular plate 33 is sleeved on the outer surface of the support rod 31, and the elastic band 34 is fixedly connected to the bottom central position of the ventilation pipe 11;

[0049] The support rod 31 is used to support the limit plate 32, the limit plate 32 is used to limit the movable circular plate 33, the movable circular plate 33 is used to move up and down on the outer surface of the support rod 31, and the elastic band 34 is used to reset the position of the movable circular plate 33;

[0050] The movable circular plate 33 is flush with the bottom end of the ventilation pipe 11, and the support rod 31 penetrates the ventilation pipe 11 and extends downward;

[0051] When the elastic band 34 is not subjected to external force, the elastic band 34 is in a horizontal state, and the movable circular plate 33 is flush with the bottom end of the ventilation pipe 11;

[0052] Working principle: when air is taken in to the ventilation duct 11, the wind drives the movable circular plate 33 to move downward along the support rod 31, and the elastic band 34 is stretched downward to generate elastic force; when air is discharged from the ventilation duct 11, the wind drives the movable circular plate 33 to move upward along the support rod 31, and the elastic band 34 is stretched upward to generate elastic force. At this time, by observing the position of the movable circular plate 33 on the outer surface of the support rod 31, it can be judged whether the ventilation duct 11 is taking in air or discharging air.

[0053] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A ventilation device for a clean room, characterized in that: include: A ventilation assembly, the ventilation assembly comprising a ventilation pipe (11); A movable assembly, the movable assembly comprising a first fixed rod (21), a first movable column (22), a telescopic spring (23), a second movable column (24), a support block (25), a fixed plate (26) and a second fixed rod (27); The first fixed rod (21) is fixedly connected to the positions on both sides of the interior of the ventilation pipe (11); the first movable column (22) is sleeved at the central position of the outer surface of the first fixed rod (21); the telescopic spring (23) is fixedly connected to the inner position of the first movable column (22); the second movable column (24) is located at the outer end of the telescopic spring (23); the support block (25) is sleeved at the inner position of the outer end of the second movable column (24); the fixed plate (26) is fixedly connected to the outer position of the support block (25); and the second fixed rod (27) is fixedly connected to the positions on both sides of the interior of the ventilation pipe (11).

2. A ventilation device for a clean room according to claim 1, characterized in that: The ventilation assembly further comprises a filter screen (12), a first through hole (13) and a second through hole (14); The filter screen (12) is fixedly connected to the two end positions inside the ventilation pipe (11), the first through hole (13) is opened at the two end positions of the ventilation pipe (11), and the second through hole (14) is opened at the central position of the bottom end of the ventilation pipe (11).

3. A ventilation device for a clean room according to claim 1, characterized in that: The fixing plate (26) is sleeved on the outer surface of the second fixing rod (27), and the fixing plate (26) is located at two sides of the interior of the ventilation pipe (11).

4. A ventilation device for a clean room according to claim 1, characterized in that: One end of the second movable column (24) is located inside the first movable column (22), and the fixing plate (26) is located inside the filter screen (12).

5. A ventilation device for a clean room according to claim 1, characterized in that: It also includes a prompting assembly, which includes a support rod (31), a limiting plate (32), a movable circular plate (33) and an elastic band (34); The support rod (31) is fixedly connected to the central top position inside the ventilation pipe (11), the limit plate (32) is fixedly connected to the bottom position of the support rod (31), the movable circular plate (33) is sleeved on the outer surface position of the support rod (31), and the elastic band (34) is fixedly connected to the central position of the bottom end of the ventilation pipe (11).

6. A ventilation device for a clean room according to claim 5, characterized in that: The movable circular plate (33) is located flush with the bottom end of the ventilation pipe (11), and the support rod (31) penetrates the ventilation pipe (11) and extends downward.

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