Adjustable ventilation assembly for clean room

Abstract

The utility model relates to the technical field of ventilation equipment, in particular to an adjustable clean room ventilation assembly which comprises a fixing assembly, shutter holes are formed in the tail of the fixing assembly, a fixing rod is rotationally connected into the fixing assembly, and an adjusting ring is fixedly connected to the tail end of the fixing rod. A sealing ring is fixedly connected to the outer portion of the adjusting ring, a worm gear is fixedly connected to the outer portion of the fixing rod, a fixing shell is fixedly connected to the top of the fixing assembly, and a worm is connected to the outer portion of the worm gear in an engaged mode. The adjustable clean room ventilation assembly has the advantages that the ventilation amount of the ventilation assembly can be adjusted, and the filter screen is convenient to disassemble and replace, a gear structure is used for driving an adjusting ring and a sealing ring to rotate so as to cancel the hindering effect on a fixed assembly and increase the ventilation amount of the assembly, and the filter screen used for filtering gas is clamped in a clamping plate, so that the ventilation amount of the assembly is increased. The clamping plates are clamped in the clamping grooves, disassembly and replacement are convenient, and the problem that an existing clean room ventilation assembly is inconvenient to use is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to an adjustable clean room ventilation component. Background Art

[0002] A clean room is a dust-free workshop. It is a well-sealed space, and the air cleanliness, temperature, humidity, pressure, noise and other parameters in the environment can be effectively controlled as needed. Clean rooms are widely used in the fields of pharmaceuticals and bioengineering, precision machinery, medical care, high-end food, electronic materials, etc. Although a clean room is a well-sealed space, in order to avoid changes in the air composition in the environment caused by production and operation, resulting in increased levels of harmful gases, cleanliness requires regular or uninterrupted ventilation using ventilation components.

[0003] The position of the clean room ventilation assembly used in the prior art is fixed, and the size of its ventilation holes is relatively fixed. There is a problem that the ventilation volume cannot be adjusted during use, and the fan installed is also affected by the size of the ventilation holes and its exhaust volume is limited; and after long-term use, the filter used to filter the air also has the problem of clogging, which needs to be cleaned or disassembled and replaced, but the filter cleaning or disassembly process of the existing clean room ventilation assembly is relatively complicated, which may affect the clean room's control over the air quality in the environment. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an adjustable clean room ventilation component with an adjustable air volume and a filter screen that is easy to disassemble and replace.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] An adjustable clean room ventilation assembly comprises a fixed assembly, a fan is arranged inside the fixed assembly, a louver hole is opened at the rear end of the fixed assembly, a fixed rod is rotatably connected inside the fixed assembly, an adjustment ring is fixedly connected to the rear end of the fixed rod, a sealing ring is fixedly connected to the outside of the adjustment ring, a worm gear is fixedly connected to the outside of the fixed rod, a fixed housing is fixedly connected to the top of the fixed assembly, a worm is meshingly connected to the outside of the worm gear, the tail end of the worm is fixedly connected to a rotating shaft, and a limiting block is fixedly connected to the outside of the rotating shaft.

[0007] Furthermore, a limiting groove corresponding to the limiting block is provided inside the fixed shell, a positioning block is provided inside the limiting groove for limiting the rotation of the limiting block, and a knob is fixedly connected to the tail of the worm.

[0008] Furthermore, a card slot is provided inside the fixing component, and a card plate is installed inside the card slot. Two card plates are provided, one of which is fixedly connected to a fixing ring on the outside, and a fixing block is fixedly connected to the outside of the fixing ring, and the other card plate is provided with a slot body corresponding to the fixing ring and the fixing block.

[0009] Furthermore, a filter screen is provided inside the card plate, and the filter screen is used to filter the gas passing therethrough. The height of the card plate is greater than the height of the card slot provided in the fixing component.

[0010] Furthermore, the outside of the fixing component is fixedly connected to a protective shell, the inside of the protective shell is provided with a spring, the inside of the spring is fixedly connected to a positioning rod, the tail of the positioning rod is fixedly connected to a pulling block, and the pulling block can pull the positioning rod to drive the spring to deform and detach from the clamping plate.

[0011] Furthermore, the louver holes are provided with a plurality of evenly distributed ones, a through hole corresponding to the fixing rod is opened inside the sealing ring, and the outer corners of the sealing ring are provided with an arc structure, which facilitates the rotation of the sealing ring inside the fixing assembly.

[0012] Furthermore, two positioning rods are symmetrically arranged with respect to the fixing assembly, and a reserved hole corresponding to the positioning rod is opened inside the clamping plate, and the clamping plate is restricted by the positioning rod through the reserved hole and fixed.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The adjustable clean room ventilation assembly takes in air through the louver holes, flows through the internal holes of the adjustment ring to the filter screen for filtration, and then completes the air inflow through the built-in fan; when the air intake needs to be increased, the knob can be turned to drive the gear structure to rotate, drive the adjustment ring and the sealing ring to rotate, so that the sealing area of ​​the adjustment ring to the fixed component is reduced to increase the air intake surface, thereby increasing the air intake volume, and completing the adjustment of the air intake volume. The structure is simple and the adjustment is convenient.

[0015] 2. The present application pulls the pull block to allow the positioning rod to apply spring tension, controls the extension of the spring to allow the positioning rod to detach from the card plate, cancels the fixation of the card plate, and removes the filter screen in the card plate by pulling the card plate for cleaning or direct replacement. The card plate is then inserted into the fixing assembly and fixed with the positioning rod. The structure is simple and the filter screen can be quickly and conveniently replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the sealing ring structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the filter structure of the utility model.

[0020] In the figure: 1. fixing assembly; 2. louver hole; 3. adjusting ring; 4. fixing rod; 5. worm gear; 6. sealing ring; 7. worm; 8. limit block; 9. knob; 10. fixing shell; 11. limit groove; 12. clamping plate; 13. fixing ring; 14. fixing block; 15. filter screen; 16. protective shell; 17. positioning rod; 18. pull block; 19. spring. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0022] Embodiment 1: Figure 1-4 As shown, an adjustable clean room ventilation assembly includes a fixed assembly 1, a fan is arranged inside the fixed assembly 1, a louver hole 2 is opened at the tail end of the fixed assembly 1, a fixed rod 4 is rotatably connected inside the fixed assembly 1, an adjusting ring 3 is fixedly connected to the tail end of the fixed rod 4, a sealing ring 6 is fixedly connected to the outside of the adjusting ring 3, a worm gear 5 is fixedly connected to the outside of the fixed rod 4, a fixed housing 10 is fixedly connected to the top of the fixed assembly 1, a worm 7 is meshingly connected to the outside of the worm gear 5, a rotating shaft is fixedly connected to the tail end of the worm 7, and a limiting block 8 is fixedly connected to the outside of the rotating shaft.

[0023] Among them, a limit groove 11 corresponding to the limit block 8 is opened inside the fixed shell 10, a positioning block for limiting the rotation of the limit block 8 is arranged inside the limit groove 11, a knob 9 is fixedly connected to the tail of the worm 7, and a card slot with a card plate 12 installed inside is opened inside the fixed component 1; two card plates 12 are provided, one of which is fixedly connected to a fixing ring 13 on the outside, and a fixing block 14 is fixedly connected to the outside of the fixing ring 13, and the other card plate 12 is provided with a groove body corresponding to the fixing ring 13 and the fixing block 14 inside.

[0024] Among them, the louver holes 2 are provided with a number of evenly distributed ones, a through hole corresponding to the fixing rod 4 is opened inside the sealing ring 6, the outer corners of the sealing ring 6 are set as an arc structure, and the arc structure is conducive to the rotation of the sealing ring 6 inside the fixing component 1, and a filter screen 15 for filtering the passing gas is set inside the card plate 12, and the height of the card plate 12 is greater than the height of the card slot set in the fixing component 1.

[0025] Working principle: When the adjustable clean room ventilation assembly is in use, air can enter through the louver holes 2, flow through the internal holes of the adjusting ring 3 to the filter 15 for filtration, and then pass through the internal fan to complete the air inflow; when it is necessary to increase the air intake, turn the knob 9 to drive the gear structure to rotate, and then drive the adjusting ring 3 and the sealing ring 5 to rotate, so that the sealing area of ​​the adjusting ring 3 to the fixed assembly 1 is reduced to increase the air intake surface, thereby increasing the air intake volume, and completing the adjustment of the air intake volume. The structure is simple and the adjustment is convenient.

[0026] Embodiment 2: Figure 1-4 As shown, on the basis of the first embodiment, the outside of the fixing component 1 is further fixedly connected to a protective shell 16, the inside of the protective shell 16 is provided with a spring 19, the inside of the spring 19 is fixedly connected to a positioning rod 17, the tail of the positioning rod 17 is fixedly connected to a pull block 18, the pull block 18 can pull the positioning rod 17 to drive the spring 19 to deform to separate from the card plate 12, two positioning rods 17 are provided symmetrically with respect to the fixing component 1, and a reserved hole corresponding to the positioning rod 17 is opened inside the card plate 12, and the card plate 12 is fixed by being restricted by the positioning rod 17 through the reserved hole.

[0027] Working principle: When the adjustable clean room ventilation component is in use, the positioning rod 17 can be pulled by pulling the pull block 18 to give tension to the spring 19, and the spring 19 can be controlled to extend so that the positioning rod 17 is separated from the card plate 12, thereby canceling the fixation of the card plate 12; at this time, the card plate 12 can be pulled, and then the filter 15 in the card plate 12 can be taken out for cleaning or direct replacement, and then the card plate 12 can be inserted into the fixing component 1 and fixed with the positioning rod 17. The structure is simple and the filter 15 can be replaced quickly and conveniently.

[0028] Although the preferred embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications and substitutions may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable clean room ventilation assembly, comprising a fixed assembly (1), characterized in that: A fan is arranged inside the fixing component (1), a louver hole (2) is opened at the rear of the fixing component (1), a fixing rod (4) is rotatably connected inside the fixing component (1), an adjusting ring (3) with a sealing ring (6) is fixedly connected to the rear end of the fixing rod (4), a worm wheel (5) meshingly connected to the worm (7) is fixedly connected to the outside of the fixing rod (4), a fixing housing (10) is fixedly connected to the top of the fixing component (1), and a rotating shaft connected to an external limit block (8) is fixedly connected to the rear end of the worm (7).

2. The adjustable clean room ventilation assembly according to claim 1, characterized in that: A limiting groove (11) corresponding to the limiting block (8) is provided inside the fixed housing (10), a positioning block for limiting the rotation of the limiting block (8) is provided inside the limiting groove (11), and a knob (9) is fixedly connected to the tail of the worm (7).

3. The adjustable clean room ventilation assembly according to claim 1, characterized in that: A card slot is provided inside the fixing component (1), and a card plate (12) is installed inside the card slot.

4. The adjustable clean room ventilation assembly according to claim 3, characterized in that: Two clamping plates (12) are provided, wherein the outside of one clamping plate (12) is fixedly connected to a fixing ring (13), the outside of the fixing ring (13) is fixedly connected to a fixing block (14), and the inside of the other clamping plate (12) is provided with a groove body corresponding to the fixing ring (13) and the fixing block (14).

5. The adjustable clean room ventilation assembly according to claim 4, characterized in that: A filter screen (15) for filtering the gas passing through is arranged inside the card plate (12).

6. The adjustable clean room ventilation assembly according to claim 4, characterized in that: The exterior of the fixing assembly (1) is fixedly connected to a protective shell (16), the interior of the protective shell (16) is provided with a spring (19), the interior of the spring (19) is fixedly connected to a positioning rod (17), and the tail of the positioning rod (17) is fixedly connected to a pull block (18).

7. The adjustable clean room ventilation assembly according to claim 1, characterized in that: The louver holes (2) are provided with a plurality of evenly distributed ones, a through hole corresponding to the fixing rod (4) is opened inside the sealing ring (6), and the outer corners of the sealing ring (6) are arranged as an arc-shaped structure.

8. The adjustable clean room ventilation assembly according to claim 6, characterized in that: The positioning rods (17) include two symmetrically arranged with respect to the fixing assembly (1), and a reserved hole corresponding to the positioning rods (17) is provided inside the clamping plate (12).

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