A clean room exhaust structure

Abstract

The utility model relates to the technical field of clean rooms, and in particular to an exhaust structure of a clean room, comprising a clean room and an exhaust duct, wherein the exhaust duct is fixedly arranged at the side of the clean room and is used for exhausting the inside of the clean room; the utility model also comprises a lifting mechanism and a filter box, wherein the lifting mechanism is arranged below the exhaust duct and fixedly arranged at the side of the clean room, and the lifting mechanism is used to drive the filter box to lift and lower so that the top of the filter box and the bottom of the exhaust duct are selectively abutted; the filter box is provided with an air inlet at the top and an air outlet at the side; the exhaust duct is provided with an exhaust hole at the bottom, and the exhaust hole and the air inlet correspond to each other up and down; the utility model proposes an exhaust structure for a clean room, which is convenient for adjusting the height of the filter box and convenient for cleaning and maintenance of the filter box by arranging a liftable filter box on the side wall of the clean room.

Description

Technical Field

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

[0002] A clean room refers to a well-enclosed space where parameters such as air cleanliness, temperature, humidity, pressure, and noise are controlled as needed. The development of clean rooms is closely linked to modern industry and cutting-edge technology.

[0003] The utility model with publication number CN219494269U discloses an activated carbon filter box for a clean room, comprising a clean room, an exhaust duct installed above one side outer wall of the clean room, a filter box installed at the top center of the clean room, a filtering mechanism is provided, the filtering mechanism is installed inside the filter box, and the filter box is connected to the exhaust duct on the clean room through a connecting pipe, and the filtering mechanism has the effects of activated carbon adsorption and dust adsorption, so that the exhaust duct discharges the air in the clean room and transports it to the filter box, and the filtering mechanism can filter and eliminate dust and bad gas, thereby meeting the clean room emission standards.

[0004] The filter box on the exhaust vent of the clean room needs to be cleaned and maintained after being used for a period of time, such as replacing the filter inside it. As in the above-mentioned technical solution, the filter box is installed on the top of the clean room. When maintaining the filter box, workers need to climb to the top of the clean room, which is inconvenient. Utility Model Content

[0005] In view of this, the utility model proposes an exhaust structure for a clean room, which is convenient for adjusting the height of the filter box and for cleaning and maintaining the filter box by arranging a liftable filter box on the side wall of the clean room.

[0006] The technical solution of the utility model is achieved in this way:

[0007] The utility model provides an exhaust structure for a clean room, comprising a clean room and an exhaust pipe, wherein the exhaust pipe is fixedly arranged on the side of the clean room and is used for exhausting air inside the clean room;

[0008] It also includes a lifting mechanism and a filter box, wherein:

[0009] The lifting mechanism is arranged below the exhaust pipe and fixedly arranged on the side of the clean room, and is used to drive the filter box to rise and fall so that the top of the filter box and the bottom of the exhaust pipe are selectively abutted;

[0010] The filter box is provided with an air inlet on the top and an air outlet on the side;

[0011] An exhaust hole is arranged at the bottom of the exhaust pipe, and the exhaust hole corresponds to the air inlet in the upper and lower parts.

[0012] On the basis of the above technical solution, preferably, the lifting mechanism includes a guide rail, a lead screw, a slider and a motor, wherein:

[0013] The guide rail is fixedly arranged vertically on the side of the clean room;

[0014] The lead screw is parallel to the guide rail, and both ends of the lead screw are rotatably connected to the side of the clean room;

[0015] The slider is slidably arranged on the guide rail, and the slider is fixedly connected to the filter box;

[0016] The lead screw passes through the slider and is screwed;

[0017] The motor is fixedly connected to the clean room, and the output end of the motor is fixedly connected to one end of the lead screw.

[0018] On the basis of the above technical solution, preferably, the guide rail is provided on each side of the lead screw, and the two guide rails are slidably connected to the slider.

[0019] On the basis of the above technical solution, preferably, the filter box includes a box body and a filter plate, wherein:

[0020] The box body and the slider are fixedly connected;

[0021] The filter plate is detachably arranged in the box;

[0022] The air inlet is arranged at the top of the box body, and the air outlet is arranged at the side of the box body;

[0023] The filter plate is arranged between the air inlet and the air outlet.

[0024] On the basis of the above technical solution, preferably, the filter box further includes a slot, wherein:

[0025] The slot is fixedly arranged inside the box;

[0026] The side end of the filter plate is inserted into the inner side of the slot.

[0027] On the basis of the above technical solution, preferably, the filter box further includes a lamp holder and a germicidal lamp, wherein:

[0028] The lamp holder is arranged between the air inlet and the filter plate, and is fixedly arranged inside the box;

[0029] The germicidal lamp is detachably arranged on the lamp holder.

[0030] On the basis of the above technical solution, preferably, the filter box further includes a box door, wherein:

[0031] The side opening of the box body;

[0032] The box door is arranged at the opening of the side of the box body and is hingedly connected to the box body.

[0033] On the basis of the above technical solution, preferably, it also includes an annular airbag, wherein:

[0034] The annular air bag is arranged between the exhaust pipe and the filter box, and is fixedly arranged on the top of the filter box;

[0035] The air inlet is arranged on the inner side of the ring of the annular airbag.

[0036] On the basis of the above technical solution, preferably, the exhaust hole, the air inlet and the air outlet are all circular holes, wherein:

[0037] The annular airbag, the air inlet and the air exhaust hole are arranged concentrically.

[0038] On the basis of the above technical solution, preferably, it also includes an induced draft fan, wherein:

[0039] The induced draft fan is arranged at the air outlet and is fixedly connected to the filter box.

[0040] The exhaust structure of a clean room of the utility model has the following beneficial effects compared with the prior art:

[0041] (1) By setting up a lifting mechanism, it is convenient to drive the filter box down through the lifting mechanism, so that workers can clean and maintain the filter box on the ground, which is convenient and also convenient for the later maintenance of the induced draft fan.

[0042] (2) The provision of an annular air bag is helpful to improve the air tightness of the connection between the filter box and the exhaust pipe, and is not easy to leak harmful gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be 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 paying creative work.

[0044] Figure 1 It is a side view of an exhaust structure of a clean room of the utility model;

[0045] Figure 2 It is a partial cross-sectional view of an exhaust structure of a clean room of the utility model;

[0046] Figure 3 It is a partial top view of an exhaust structure of a clean room of the utility model;

[0047] Figure 4 It is a side view of the lifting mechanism of the utility model;

[0048] In the figure: 1. clean room; 2. exhaust duct; 3. lifting mechanism; 4. filter box; 5. annular air bag; 6. induced draft fan; 31. guide rail; 32. lead screw; 33. slider; 34. motor; 41. box body; 42. filter plate; 43. slot; 44. lamp holder; 45. germicidal lamp; 46. box door; 201. exhaust hole; 401. air inlet; 402. air outlet. DETAILED DESCRIPTION

[0049] The following will be combined with the specific implementation of the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] like Figure 1-4 As shown, an exhaust structure of a clean room of the utility model comprises a clean room 1, an exhaust pipe 2, a lifting mechanism 3 and a filter box 4.

[0051] The exhaust pipe 2 is fixedly arranged on the side of the clean room 1 , one end of which is connected to the inside of the clean room 1 , and the other end is used for exhausting the inside of the clean room 1 , and the exhausted air is filtered by the filter box 4 and then exhausted.

[0052] The lifting mechanism 3 is arranged below the exhaust duct 2 and fixedly arranged on the side of the clean room 1. The lifting mechanism 3 is used to drive the filter box 4 to lift and lower so that the top of the filter box 4 and the bottom of the exhaust duct 2 are selectively abutted. The top of the filter box 4 is provided with an air inlet 401, and the side is provided with an air outlet 402. The bottom of the exhaust duct 2 is provided with an exhaust hole 201, and the exhaust hole 201 and the air inlet 401 correspond to each other up and down. When the lifting mechanism 3 drives the filter box 4 to descend, it is convenient for workers to clean and maintain the filter box 4 on the ground, which is convenient. When the lifting mechanism 3 drives the filter box 4 to rise and makes the top of the filter box 4 and the bottom of the exhaust duct 2 abut, the exhaust hole 201 and the air inlet 401 are connected up and down. When the air inside the clean room 1 is exhausted from the exhaust duct 2, the air in the pipe passes through the exhaust hole 201 and the air inlet 401 and enters the filter box 4 for filtration, and the filtered air is discharged into the atmosphere from the air outlet 402.

[0053] The lifting mechanism 3 is an electric linear slide structure. Specifically, the lifting mechanism 3 includes a guide rail 31, a lead screw 32, a slider 33 and a motor 34, wherein the guide rail 31 is vertically fixedly arranged on the side of the clean room 1, the lead screw 32 is parallel to the guide rail 31, both ends of the lead screw 32 are rotatably connected to the side of the clean room 1, the slider 33 is slidably arranged on the guide rail 31, the slider 33 is fixedly connected to the filter box 4, the lead screw 32 passes through the slider 33 and is screwed, the motor 34 is fixedly connected to the clean room 1, and the output end of the motor 34 is fixedly connected to one end of the lead screw 32.

[0054] When the motor 34 is powered on, its output shaft drives the lead screw 32 to rotate, and the lead screw 32 drives the slider 33 to slide up and down along the guide rail 31. The slider 33 carries the filter box 4 to achieve lifting. In order to improve the stability of lifting, a guide rail 31 is provided on each side of the lead screw 32, and the two guide rails 31 are slidably connected to the slider 33.

[0055] The filter box 4 is mainly used for filtering dust and odor in the air. Specifically, the filter box 4 includes a box body 41 and a filter plate 42, wherein the box body 41 and the slider 33 are fixedly connected, and the filter plate 42 is detachably arranged in the box body 41, the air inlet 401 is arranged at the top of the box body 41, and the air outlet 402 is arranged at the side of the box body 41, and the filter plate 42 is arranged between the air inlet 401 and the air outlet 402. The filter plate 42 is an activated carbon filter plate, which can be removed from the box body 41 to facilitate later replacement.

[0056] The filter plate 42 is installed in a slot-type manner. Specifically, the filter box 4 also includes a slot 43, wherein two upper and lower slots 43 are fixedly arranged inside the box body 41, and each slot 43 includes two rectangular plates. The gap between the two rectangular plates is the plug-in gap of the filter plate 42. The filter plate 42 is arranged between the two slots 43, and the side end of the filter plate 42 is plugged into the inner side of the slot 43. When disassembling, the filter plate 42 is pulled out of the slot 43 in a straight line direction. After replacement or cleaning, the filter plate 42 is reinserted into the slot 43 in a straight line direction.

[0057] In order to improve the filtering effect, a plurality of filter plates 42 are arranged side by side in the box body 41 .

[0058] The air exhausted from the clean room 1 may usually contain bacteria, therefore, a lamp holder 44 and a sterilizing lamp 45 are provided in the filter box 4, wherein the lamp holder 44 is provided between the air inlet 401 and the filter plate 42, and is fixedly provided inside the box body 41, and the sterilizing lamp 45 is detachably provided on the lamp holder 44, and the air entering the filter box 4 is sterilized by the sterilizing lamp 45.

[0059] In order to facilitate the replacement of the filter plate 42 in the filter box 4, an opening is provided on the side of the box body 41, and a box door 46 is provided at the opening. The box door 46 and the box body 41 are hingedly connected. During maintenance, the box door 46 is opened and closed after maintenance. The side of the box door 46 and the box body 41 are connected with a metal buckle, which is used to lock the box door 46 and the box body 41 after they are closed.

[0060] When the top of the filter box 4 and the bottom of the exhaust pipe 2 are in contact with each other, exhaust gas leakage may occur in the gap between the filter box 4 and the exhaust pipe 2. For this reason, an annular airbag 5 is arranged between the exhaust pipe 2 and the filter box 4. Specifically, the annular airbag 5 is fixedly arranged on the top of the filter box 4, and the air inlet 401 is arranged on the inner side of the ring of the annular airbag 5, wherein the air inlet 401, the exhaust hole 201 and the air outlet 402 are all circular holes, and the annular airbag 5 and the air inlet 401 and the exhaust hole 201 are concentrically arranged. When the top of the filter box 4 and the bottom of the exhaust pipe 2 are in contact with each other, the annular airbag 5 is clamped and fixed between the filter box 4 and the exhaust pipe 2 to form a seal to prevent leakage of harmful gases.

[0061] In addition, in order to realize forced ventilation, an induced draft fan 6 is arranged at the air outlet 402. The induced draft fan 6 is a cylindrical fan, which is fixed to the side of the filter box 4 by bolts.

[0062] The method of using the exhaust structure of a clean room of the utility model is as follows:

[0063] First, when the filter plate 42 inside the filter box 4 needs to be maintained, the filter box 4 is driven down by the lifting mechanism 3, and then the box door 46 is opened to replace the filter plate 42 in the box body 41. After replacement, the filter box 4 is driven up by the lifting mechanism 3, and the annular airbag 5 is clamped between the filter box 4 and the exhaust pipe 2.

[0064] When the induced draft fan 6 is working, the air in the clean room 1 will enter the filter box 4 from the exhaust pipe 2, then pass through the filter plate 42 and be discharged from the air outlet 402, and be blown into the atmosphere by the induced draft fan 6. During the process, the filter plate 42 filters the air.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust structure for a clean room, comprising a clean room (1) and an exhaust pipe (2), wherein: The exhaust pipe (2) is fixedly arranged on the side of the clean room (1) and is used for exhausting air inside the clean room (1); It is characterized in that it also includes a lifting mechanism (3) and a filter box (4), wherein: The lifting mechanism (3) is arranged below the exhaust pipe (2) and fixedly arranged on the side of the clean room (1), and the lifting mechanism (3) is used to drive the filter box (4) to rise and fall, so that the top of the filter box (4) and the bottom of the exhaust pipe (2) are selectively abutted; The filter box (4) is provided with an air inlet (401) at the top and an air outlet (402) at the side; An exhaust hole (201) is provided at the bottom of the exhaust pipe (2), and the exhaust hole (201) corresponds to the air inlet (401) in upper and lower directions.

2. The exhaust structure of a clean room according to claim 1, characterized in that: The lifting mechanism (3) comprises a guide rail (31), a lead screw (32), a slider (33) and a motor (34), wherein: The guide rail (31) is fixedly arranged vertically on the side of the clean room (1); The lead screw (32) is parallel to the guide rail (31), and both ends of the lead screw (32) are rotatably connected to the side of the clean room (1); The slider (33) is slidably arranged on the guide rail (31), and the slider (33) and the filter box (4) are fixedly connected; The lead screw (32) passes through the slider (33) and is screwed; The motor (34) is fixedly connected to the clean room (1), and the output end of the motor (34) is fixedly connected to one end of the lead screw (32).

3. The exhaust structure of a clean room according to claim 2, characterized in that: One guide rail (31) is provided on each side of the lead screw (32), and both guide rails (31) are slidably connected to the slider (33).

4. The exhaust structure of a clean room according to claim 3, characterized in that: The filter box (4) comprises a box body (41) and a filter plate (42), wherein: The box body (41) and the slider (33) are fixedly connected; The filter plate (42) is detachably arranged in the box (41); The air inlet (401) is arranged at the top of the box body (41), and the air outlet (402) is arranged at the side of the box body (41); The filter plate (42) is arranged between the air inlet (401) and the air outlet (402).

5. The exhaust structure of a clean room according to claim 4, characterized in that: The filter box (4) further comprises a slot (43), wherein: The slot (43) is fixedly arranged inside the box (41); The side end of the filter plate (42) is inserted into the inner side of the slot (43).

6. The exhaust structure of a clean room according to claim 5, characterized in that: The filter box (4) further comprises a lamp holder (44) and a germicidal lamp (45), wherein: The lamp holder (44) is arranged between the air inlet (401) and the filter plate (42), and is fixedly arranged inside the box (41); The germicidal lamp (45) is detachably arranged on the lamp holder (44).

7. An exhaust structure for a clean room according to claim 6, characterized in that: The filter box (4) further comprises a box door (46), wherein: The box body (41) has a side opening; The box door (46) is arranged at an opening on the side of the box body (41) and is hingedly connected to the box body (41).

8. The exhaust structure of a clean room according to claim 1, characterized in that: Also included is an annular airbag (5), wherein: The annular air bag (5) is arranged between the exhaust pipe (2) and the filter box (4), and is fixedly arranged on the top of the filter box (4); The air inlet (401) is arranged on the inner side of the annular airbag (5).

9. An exhaust structure for a clean room according to claim 8, characterized in that: The exhaust hole (201), the air inlet (401) and the air outlet (402) are all circular holes, wherein: The annular airbag (5), the air inlet (401) and the air exhaust hole (201) are arranged concentrically.

10. The exhaust structure of a clean room according to claim 1, characterized in that: It also includes an induced draft fan (6), wherein: The induced draft fan (6) is arranged at the air outlet (402) and is fixedly connected to the filter box (4).

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