Self-adjusting ventilating duct for clean room

Abstract

The utility model discloses a self-adjusting type clean room ventilating duct, including the shell, the end part of shell is fixedly connected with the connecting shell, the inner wall of connecting shell is fixedly connected with the sealing mechanism, the sealing mechanism includes the first support rod, the first support rod is fixedly connected to the inner wall of connecting shell, and the first support rod is fixedly connected to the inner wall of connecting shell. The end of the first supporting rod is fixedly connected with a first spring, the end of the first spring is fixedly connected with a fixing block, the outer surface of the fixing block is fixedly connected with a sealing ring, the side, close to the connecting shell, of the sealing ring is fixedly connected with an elastic ring, and the side of the elastic ring is fixedly connected to the inner wall of the connecting shell. A rail box penetrates through the outer surface of the shell, a blocking mechanism is slidably connected to an inner cavity of the rail box, and the blocking mechanism comprises a flow guide ring. The self-adjusting ventilating duct for the clean room has the effect that the ventilating duct can be closed in a self-adaptive mode.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a self-regulating ventilation duct for a clean room. Background Art

[0002] Self-regulating cleanroom ventilation ducts are an indispensable and key part of modern cleanroom environments. They are like a precise and diligent "air dispatcher" who always ensures the air quality of the cleanroom. This type of ventilation duct has an intelligent self-regulating function and can automatically optimize the air flow and direction according to the actual situation inside the cleanroom. It ensures that the air is evenly distributed in all areas of the cleanroom and maintains a stable and suitable environmental state. In places with extremely high requirements for air cleanliness, such as electronic chip production workshops, medical laboratories, etc., self-regulating cleanroom ventilation ducts show excellent performance.

[0003] For example, the utility model with application number CN219050691U discloses a duct for indoor ventilation, including a duct, the duct including a docking duct and a valve duct connected in sequence; the valve duct includes a first duct, a main body, and a second duct distributed in sequence; a filter disc and a drying duct distributed in sequence are installed at the air inlet of the first duct; a valve is installed on the main body, and the valve includes a swivel and a valve cover connected to each other through a rotating shaft; a sterilizing filter element is installed at the air outlet of the second duct; a discharge port is also opened at the bottom end of the docking duct on one side close to the filter disc, a material storage box is connected at the discharge port, and a feed port connected to the discharge port is opened at the top of the material storage box, and the material storage box is threadedly fixed to the discharge port. The advantage of the utility model is that by adding a discharge port and a material storage box on the side of the docking duct close to the filter disc, large particle impurities filtered by the filter disc are discharged from the discharge port, avoiding large particle impurities from accumulating in the duct and causing obstruction to air circulation.

[0004] Similar to the above application, there are still the following shortcomings: when the laboratory is not exhausting air to the outside, the ventilation duct cannot achieve the effect of adaptive closure. Utility Model Content

[0005] The utility model discloses a self-regulating ventilation duct for a clean room, aiming to solve the technical problem that the ventilation duct cannot be automatically closed when the laboratory does not exhaust air to the outside.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A self-regulating ventilation duct for a clean room, comprising an outer shell, an end portion of the outer shell being fixedly connected to a connecting shell, an inner wall of the connecting shell being fixedly connected to a sealing mechanism, the sealing mechanism comprising a first support rod, the first support rod being fixedly connected to the inner wall of the connecting shell, the end portion of the first support rod being fixedly connected to a first spring, the end portion of the first spring being fixedly connected to a fixing block, an outer surface of the fixing block being fixedly connected to a sealing ring, a side of the sealing ring close to the connecting shell being fixedly connected to an elastic ring, and a side of the elastic ring being fixedly connected to the inner wall of the connecting shell; a track box passing through the outer surface of the outer shell, a blocking mechanism being slidably connected to an inner cavity of the track box, the blocking mechanism comprising a guide ring, the guide ring being fixedly connected to the inner wall of the outer shell, and an air permeable funnel being fixedly connected to the inner wall of the guide ring.

[0008] By providing a sealing mechanism, the outer shell can be in tight contact with the outer surface of the intake pipe, thereby achieving the effect of preventing airflow leakage when controlling the air flow rate; by providing a first spring, elastic potential energy can be generated, thereby enabling the sealing ring to be squeezed and in tight contact with the outer surface of the intake pipe; by providing an elastic ring, the elastic ring can be deformed when the sealing ring is squeezed, thereby enabling the sealing ring to be in tight contact with the outer surface of the intake pipe; by providing a blocking mechanism, the space entering the inner cavity of the outer shell can be enlarged after the intake pipe injects too much airflow into the inner cavity of the outer shell, and the outer shell can be kept in a sealed state when the airflow injected into the inner cavity of the outer shell by the intake pipe becomes smaller.

[0009] In a preferred embodiment, the inner cavity of the sealing ring is movably connected to an air intake pipe, the outer surface of the air intake pipe is fixedly connected to a positioning ring, the side of the positioning ring close to the sealing ring is fixedly connected to a gasket, the gasket is extruded and fitted with the outer surface of the sealing ring, and the number of the first support rods is several, and the several first support rods are evenly distributed.

[0010] By setting a positioning ring and a gasket, when the intake pipe is inserted into the inner wall of the sealing ring, it can be in tight contact with the outer surface of the sealing ring, so that no gap is generated between the intake pipe and the sealing ring. By setting a plurality of first support rods, the sealing ring can be squeezed in all directions.

[0011] In a preferred solution, the number of the track boxes is four, and the four track boxes are evenly distributed, and the inner walls of the four track boxes are fixedly connected to a limiting rod, the outer surface of the limiting rod is slidably connected to a sliding rod, the outer surface of the limiting rod is sleeved with a second spring, the end of the second spring is fixedly connected to the outer surface of the sliding rod, and the sliding rod extending to one end of the inner cavity of the shell is fixedly connected to a movable ring, the movable ring is frictionally matched with the outer side surface of the guide ring, and the inner wall of the movable ring is fixedly connected with a partition bar, the number of the partition bars is several, and the several partition bars are evenly distributed, and the ends of the several partition bars are fixedly connected with blocking blocks, and the blocking blocks are frictionally matched with the inner wall of the air permeable funnel.

[0012] By setting a limit rod, the sliding rod can be limited so that the sliding rod can slide stably on the outer surface of the limit rod. By setting a second spring, the sliding rod can be squeezed so that the sliding rod rebounds after moving on the outer surface of the limit rod. By setting a spacer, it can be squeezed with the hole of the air funnel, so as to prevent airflow from entering the inner cavity of the shell when squeezed together.

[0013] As can be seen from the above, a self-regulating clean room ventilation duct has the following improvements and advantages compared with the prior art:

[0014] First, by providing a sealing mechanism, the outer shell can be in tight contact with the outer surface of the air inlet pipe, thereby achieving the effect of preventing air flow leakage when controlling the air flow rate.

[0015] Secondly, by setting up a blocking mechanism, when the air intake pipe injects too much air into the inner cavity of the shell, the space entering the inner cavity of the shell can be enlarged, and when the air intake pipe injects less air into the inner cavity of the shell, the shell can be kept in a sealed state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a structural schematic diagram of a self-regulating ventilation duct for a clean room.

[0017] Figure 2 The utility model is a schematic diagram of the disassembled structure of a self-regulating ventilation duct for a clean room.

[0018] Figure 3 The utility model is a schematic diagram of a sealing mechanism for a self-regulating ventilation duct for a clean room.

[0019] Figure 4 The utility model is a schematic diagram of a blocking mechanism for a self-regulating ventilation duct for a clean room.

[0020] Figure 5The utility model is a partial schematic diagram of a blocking mechanism of a self-regulating ventilation duct for a clean room.

[0021] In the accompanying drawings: 1. outer shell; 2. connecting shell; 3. air intake pipe; 4. positioning ring; 5. gasket; 6. sealing mechanism; 7. track box; 8. blocking mechanism; 61. first support rod; 62. first spring; 63. fixed block; 64. sealing ring; 65. elastic ring; 81. limiting rod; 82. sliding rod; 83. second spring; 84. movable ring; 85. spacer; 86. blocking block; 87. guide ring; 88. air funnel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] The utility model discloses a self-regulating ventilation duct for a clean room, which is mainly used in the scenario where the ventilation duct cannot be automatically closed when the laboratory does not exhaust air to the outside.

[0025] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4A self-regulating ventilation duct for a clean room comprises a shell 1, an end of the shell 1 is fixedly connected to a connecting shell 2, and a sealing mechanism 6 is fixedly connected to the inner wall of the connecting shell 2. By setting the sealing mechanism 6, the shell 1 can be in tight contact with the outer surface of the air inlet pipe 3, so as to prevent the air flow from leaking when controlling the air flow rate. The sealing mechanism 6 comprises a first support rod 61, the first support rod 61 is fixedly connected to the inner wall of the connecting shell 2, the end of the first support rod 61 is fixedly connected to a first spring 62, and the end of the first spring 62 is fixedly connected to a fixing block 63. By setting the first spring 62, elastic potential energy can be generated, so that the sealing ring 64 can be squeezed and in tight contact with the outer surface of the air inlet pipe 3. The outer surface of the fixing block 63 is fixedly connected to the sealing ring 64, and the sealing ring 64 is pressed against the outer surface of the fixing block 63. An elastic ring 65 is fixedly connected to one side of the connecting shell 2, and the side of the elastic ring 65 is fixedly connected to the inner wall of the connecting shell 2. By providing the elastic ring 65, the elastic ring 65 can be deformed when the sealing ring 64 is squeezed, so that the sealing ring 64 is tightly in contact with the outer surface of the intake pipe 3; the outer surface of the outer shell 1 is penetrated by a track box 7, and a blocking mechanism 8 is slidably connected to the inner cavity of the track box 7. The blocking mechanism 8 includes a guide ring 87, and the guide ring 87 is fixedly connected to the inner wall of the outer shell 1. A breathable funnel 88 is fixedly connected to the inner wall of the guide ring 87. By providing the blocking mechanism 8, after the intake pipe 3 injects too much air into the inner cavity of the outer shell 1, the space entering the inner cavity of the outer shell 1 can be enlarged, and when the air flow injected into the inner cavity of the outer shell 1 by the intake pipe 3 becomes smaller, the outer shell 1 can be kept in a sealed state.

[0026] Reference Figure 3 In a preferred embodiment, the inner cavity of the sealing ring 64 is movably connected with the intake pipe 3, and the outer surface of the intake pipe 3 is fixedly connected with a positioning ring 4, and the side of the positioning ring 4 close to the sealing ring 64 is fixedly connected with a gasket 5, and the gasket 5 is extruded and adapted with the outer surface of the sealing ring 64. By providing the positioning ring 4 and the gasket 5, when the intake pipe 3 is inserted into the inner wall of the sealing ring 64, it can be tightly in contact with the outer surface of the sealing ring 64, so that there is no gap between the intake pipe 3 and the sealing ring 64. The number of the first support rods 61 is several, and the several first support rods 61 are evenly distributed. By providing several first support rods 61, the sealing ring 64 can be squeezed in all directions. When in use, the operator inserts the intake pipe 3 into the inner cavity of the sealing ring 64. During the insertion process, the gasket 5 is in tight contact with the outer surface of the sealing ring 64. Under the extrusion force of the first spring 62, the elastic ring 65 is deformed, thereby causing the sealing ring 64 to tightly squeeze the outer surface of the intake pipe 3.

[0027] Reference Figure 4 and Figure 5In a preferred embodiment, the number of the track boxes 7 is four, and the four track boxes 7 are evenly distributed, and the inner walls of the four track boxes 7 are fixedly connected to a limiting rod 81, and the outer surface of the limiting rod 81 is slidably connected to a sliding rod 82. By setting the limiting rod 81, the sliding rod 82 can be limited, so that the sliding rod 82 can slide stably on the outer surface of the limiting rod 81. The outer surface of the limiting rod 81 is sleeved with a second spring 83, and the end of the second spring 83 is fixedly connected to the outer surface of the sliding rod 82. By setting the second spring 83, the sliding rod 82 can be squeezed, so that the sliding rod 82 rebounds after the outer surface of the limiting rod 81 moves. One end of the sliding rod 82 extending to the inner cavity of the shell 1 is fixedly connected to a movable ring 84, and the movable ring 84 is frictionally adapted to the outer side of the guide ring 87. A spacer 85 is fixedly connected to the inner wall of the ring 84. The number of the spacers 85 is several, and the several spacers 85 are evenly distributed. The ends of the several spacers 85 are fixedly connected with blocking blocks 86. The blocking blocks 86 are frictionally matched with the inner wall of the air permeable funnel 88. By setting the spacers 85, they can be squeezed with the holes of the air permeable funnel 88, so that when they are squeezed together, the air flow is prevented from entering the inner cavity of the shell 1. During use, when the air inlet pipe 3 does not inject air into the inner cavity of the shell 1, the spacer 85 will be tightly squeezed together with the outer surface of the air permeable funnel 88, so that the outside air will not enter the inner cavity of the shell 1. When the air inlet pipe 3 injects air into the inner cavity of the shell 1, the spacer 85 is blown by the air flow, so that the movable ring 84 slides under the action of the sliding rod 82, and finally the air flow enters the inner cavity of the shell 1.

[0028] Working principle: When in use, the operator inserts the air intake pipe 3 into the inner cavity of the sealing ring 64. During the insertion process, the gasket 5 is in tight contact with the outer surface of the sealing ring 64. Under the squeezing force of the first spring 62, the elastic ring 65 is deformed, thereby causing the sealing ring 64 to tightly squeeze the outer surface of the air intake pipe 3. When the air intake pipe 3 does not inject air into the inner cavity of the outer shell 1, the partition bar 85 will be tightly squeezed together with the outer surface of the air permeable funnel 88, thereby preventing outside air from entering the inner cavity of the outer shell 1. When the air intake pipe 3 injects air into the inner cavity of the outer shell 1, the partition bar 85 is blown by the air flow, thereby causing the movable ring 84 to slide under the action of the sliding rod 82, and finally allowing the air flow to enter the inner cavity of the outer shell 1.

[0029] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A self-regulating clean room ventilation duct, comprising a housing (1), characterized in that: The end of the outer shell (1) is fixedly connected to the connecting shell (2), and the inner wall of the connecting shell (2) is fixedly connected to a sealing mechanism (6), and the sealing mechanism (6) comprises a first support rod (61), and the first support rod (61) is fixedly connected to the inner wall of the connecting shell (2), and the end of the first support rod (61) is fixedly connected to a first spring (62), and the end of the first spring (62) is fixedly connected to a fixing block (63), and the outer surface of the fixing block (63) is fixedly connected to a sealing ring (64), The sealing ring (64) is fixedly connected to an elastic ring (65) on one side close to the connecting shell (2), and the side of the elastic ring (65) is fixedly connected to the inner wall of the connecting shell (2); a track box (7) penetrates the outer surface of the outer shell (1), and a blocking mechanism (8) is slidably connected to the inner cavity of the track box (7), and the blocking mechanism (8) includes a guide ring (87), and the guide ring (87) is fixedly connected to the inner wall of the outer shell (1), and a breathable funnel (88) is fixedly connected to the inner wall of the guide ring (87).

2. A self-regulating clean room ventilation duct according to claim 1, characterized in that: The inner cavity of the sealing ring (64) is movably connected to an air intake pipe (3), the outer surface of the air intake pipe (3) is fixedly connected to a positioning ring (4), and the side of the positioning ring (4) close to the sealing ring (64) is fixedly connected to a gasket (5), and the gasket (5) is extruded and adapted to the outer surface of the sealing ring (64).

3. The self-regulating clean room ventilation duct according to claim 1, characterized in that: The number of the first support rods (61) is multiple, and the multiple first support rods (61) are evenly distributed.

4. The self-regulating clean room ventilation duct according to claim 1, characterized in that: The number of the track boxes (7) is four, and the four track boxes (7) are evenly distributed, and the inner walls of the four track boxes (7) are fixedly connected to limit rods (81), and the outer surfaces of the limit rods (81) are slidably connected to sliding rods (82).

5. A self-regulating clean room ventilation duct according to claim 4, characterized in that: A second spring (83) is sleeved on the outer surface of the limiting rod (81), and the end of the second spring (83) is fixedly connected to the outer surface of the sliding rod (82).

6. A self-regulating clean room ventilation duct according to claim 5, characterized in that: One end of the sliding rod (82) extending to the inner cavity of the housing (1) is fixedly connected to a movable ring (84), and the movable ring (84) is frictionally matched with the outer side surface of the guide ring (87).

7. A self-regulating clean room ventilation duct according to claim 6, characterized in that: A spacer (85) is fixedly connected to the inner wall of the movable ring (84), the number of the spacer (85) is several, and the several spacer (85) are evenly distributed, and the ends of the several spacer (85) are fixedly connected to a blocking block (86), and the blocking block (86) is frictionally matched with the inner wall of the air permeable funnel (88).

Images