Automatic pressure difference adjusting device for clean room
By designing a clean room pressure difference automatic adjustment device, the automatic adjustment of the pressure difference in the clean room is achieved by using the cooperation of the sleeve and the piston, the problem of high and unstable manual adjustment of the pressure difference in the prior art is solved, and automatic and stable adjustment of the pressure difference is achieved.
Patent Information
- Application Number
- CN202421978405.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The pressure difference in existing clean rooms requires manual adjustment, resulting in high working strength and unstable pressure difference.
A clean room pressure difference automatic adjustment device is designed. Through the cooperation of the sleeve and the piston, the gas is discharged when the pressure inside the clean room is higher than the pressure inside the shell; when the pressure inside the shell is lower than the pressure inside the shell, the gas in the shell enters the clean room through the filter cartridge to achieve automatic adjustment.
Automatic adjustment of the pressure difference in the clean room is achieved, manpower is reduced, and the piston is reset through the spring force to ensure stable pressure.
Smart Images
Figure CN222937934U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of differential pressure regulation in clean rooms, and specifically relates to an automatic differential pressure regulation device for clean rooms. Background Art
[0002] A clean room, also known as a dust-free workshop, dust-free room or clean room, refers to a specially designed room that excludes microparticles, harmful air, bacteria and other pollutants in the air within a certain space range, and controls the indoor temperature, cleanliness, indoor pressure, air flow velocity and distribution, noise vibration, lighting, and static electricity within a certain required range.
[0003] At present, the differential pressure in clean rooms often needs to be adjusted manually. When adjusted manually, the adjusters need to continuously observe the differential pressure situation. This not only has a high working intensity, but also easily leads to unstable indoor differential pressure due to manual misoperation. Therefore, it is necessary to design an automatic differential pressure regulation device for clean rooms to solve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide an automatic differential pressure regulation device for clean rooms to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: an automatic differential pressure regulation device for clean rooms, including a base, on the top of which a clean room is fixedly installed, and an outer shell is fixedly installed on the top of the base. A sleeve is fixedly installed on the surface of the clean room through an opening. A piston is slidably connected inside the sleeve. A traction rod is fixedly installed on the surface of the piston, and a traction plate is fixedly installed at the front end of the traction rod. An adjustment mechanism is arranged at the front end of the traction plate.
[0006] Preferably, the adjustment mechanism includes sealing rods fixedly connected to both sides of the rear of the traction plate. Sealing sleeves are fixedly installed on both sides of the surface of the clean room through openings. The rear ends of the sealing rods extend into the interiors of the sealing sleeves, and ventilation grooves are opened at the tops of the sealing rods.
[0007] Preferably, a first chute plate is fixedly installed on the surface of the clean room, and a second chute plate is fixedly installed on the surface of the traction plate. Sliders are slidably connected inside both the first chute plate and the second chute plate, and a spring is fixedly installed between the two sliders.
[0008] Preferably, an observation plate is fixedly installed on the surface of the clean room and on the right side of the first chute plate.
[0009] Preferably, an observation groove is opened on the left side of the observation plate.
[0010] Preferably, filter cylinders are fixedly installed on both sides of the front part of the interior of the clean room.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. For this automatic differential pressure regulating device for a clean room, by setting a sleeve and a piston, when the internal pressure of the clean room is higher than the pressure inside the outer shell, the piston can move forward. The forward movement of the piston drives the movement of the sealing rod. After the sealing rod moves outside the sealing sleeve, the gas in the clean room can be discharged through the sealing sleeve. When the pressure in the clean room is lower than the pressure inside the outer shell, the piston can drive the sealing rod to move backward. The movement of the sealing rod makes the ventilation groove move to the inner side of the filter cylinder. At this time, the gas inside the outer shell can enter the inside of the clean room through the ventilation groove, the sealing sleeve and the filter cylinder, thereby achieving the effect of automatically regulating the differential pressure in the clean room and effectively saving manpower.
[0013] 2. For this automatic differential pressure regulating device for a clean room, by setting a spring, after the pressure in the clean room stabilizes, the spring can drive the traction rod to move through elastic force. The movement of the traction rod can achieve the effect of resetting the piston. After the spring has been used for a long time, the elastic potential energy of the spring can be observed through the observation groove. When the elastic potential energy of the spring decreases, the slider can be pulled upward so that the two sliders respectively rise outside the first chute plate and the second chute plate, thereby achieving the effect of facilitating the removal and replacement of the spring. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of the present utility model;
[0015] Figure 2 is a side view of the internal structure of the clean room, the outer shell and the sleeve of the present utility model;
[0016] Figure 3 is a schematic structural diagram of the sealing rod, the ventilation groove and the filter cylinder of the present utility model;
[0017] Figure 4 is a schematic structural diagram of the piston, the traction rod and the ventilation groove of the present utility model;
[0018] Figure 5 is a schematic structural diagram of the slider and the spring of the present utility model.
[0019] In the figure: 1, base; 2, clean room; 3, sleeve; 4, piston; 5, traction rod; 6, traction plate; 7, sealing rod; 8, sealing sleeve; 9, ventilation groove; 10, filter cylinder; 11, first chute plate; 12, second chute plate; 13, slider; 14, spring; 15, observation plate; 16, observation groove; 17, outer shell. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0021] Embodiment 1
[0022] Please refer to Figures 1-5 As shown, the present utility model provides a clean room differential pressure automatic adjustment device, which includes a base 1. A clean room 2 is fixedly installed on the top of the base 1, and a housing 17 is fixedly installed on the top of the base 1. A sleeve 3 is fixedly installed on the surface of the clean room 2 through an opening. A piston 4 is slidably connected inside the sleeve 3. A traction rod 5 is fixedly installed on the surface of the piston 4. A traction plate 6 is fixedly installed at the front end of the traction rod 5. An adjustment mechanism is provided at the front end of the traction plate 6.
[0023] Specifically, the adjustment mechanism includes sealing rods 7 fixedly connected to both sides of the rear part of the traction plate 6. The surface of the sealing rods 7 is made of rubber material. Sealing sleeves 8 are fixedly installed on both sides of the surface of the clean room 2 through openings. The rear ends of the sealing rods 7 extend into the inside of the sealing sleeves 8. Ventilation grooves 9 are opened at the tops of the sealing rods 7. Filter cylinders 10 are fixedly installed on both sides of the front part of the inner cavity of the clean room 2. By setting the sleeve 3 and the piston 4, when the pressure inside the clean room 2 is higher than the pressure inside the housing 17, the piston 4 can move forward. The forward movement of the piston 4 drives the traction rod 5 to move. The movement of the traction rod 5 drives the traction plate 6 to move. The movement of the traction plate 6 drives the sealing rod 7 to move. After the sealing rod 7 moves outside the sealing sleeve 8, the gas inside the clean room 2 can be discharged through the sealing sleeve 8. When the pressure inside the clean room 2 is lower than the pressure inside the housing 17, the piston 4 can move backward. The backward movement of the piston 4 drives the sealing rod 7 to move backward. The movement of the sealing rod 7 makes the ventilation groove 9 move to the inner side of the filter cylinder 10. At this time, the gas inside the housing 17 can enter the inside of the clean room 2 through the ventilation groove 9, the sealing sleeve 8 and the filter cylinder 10, thereby achieving the effect of automatically adjusting the differential pressure inside the clean room 2.
[0024] Among them: A first chute plate 11 is fixedly installed on the surface of the clean room 2. A second chute plate 12 is fixedly installed on the surface of the traction plate 6. Sliders 13 are slidably connected inside both the first chute plate 11 and the second chute plate 12. A spring 14 is fixedly installed between the two sliders 13. By setting the spring 14, after the pressure inside the clean room 2 is stabilized, the spring 14 can drive the second chute plate 12 to move through the elastic force. The movement of the second chute plate 12 drives the traction plate 6 to move. The movement of the traction plate 6 drives the traction rod 5 to move. The movement of the traction rod 5 can achieve the effect of resetting the piston 4.
[0025] Specifically, an observation plate 15 is fixedly installed on the surface of the clean room 2 and on the right side of the first chute plate 11. An observation groove 16 is formed on the left side of the observation plate 15. By providing the observation plate 15 and observing the elastic potential energy of the spring 14 through the observation groove 16, when the elastic potential energy of the spring 14 decreases, the slider 13 can be pulled upward so that the two sliders 13 rise to the outside of the first chute plate 11 and the second chute plate 12 respectively, thereby achieving the effect of facilitating the removal and replacement of the spring 14.
[0026] Working principle: The present utility model is a clean room differential pressure automatic adjustment device. By providing the sleeve 3 and the piston 4, when the pressure inside the clean room 2 is higher than the pressure inside the housing 17, the piston 4 can move forward. The forward movement of the piston 4 drives the movement of the traction rod 5, the movement of the traction rod 5 drives the movement of the traction plate 6, and the movement of the traction plate 6 drives the movement of the sealing rod 7. After the sealing rod 7 moves to the outside of the sealing sleeve 8, the gas inside the clean room 2 can be discharged through the sealing sleeve 8. When the pressure inside the clean room 2 is lower than the pressure inside the housing 17, the piston 4 can move backward. The backward movement of the piston 4 drives the backward movement of the sealing rod 7, and the movement of the sealing rod 7 causes the ventilation groove 9 to move to the inside of the filter cylinder 10. At this time, the gas inside the housing 17 can enter the inside of the clean room 2 through the ventilation groove 9, the sealing sleeve 8, and the filter cylinder 10, thereby achieving the effect of automatically adjusting the differential pressure inside the clean room 2, effectively saving manpower. At the same time, by providing the spring 14, after the pressure inside the clean room 2 stabilizes, the spring 14 can drive the movement of the second chute plate 12 through its elastic force. The movement of the second chute plate 12 drives the movement of the traction plate 6, the movement of the traction plate 6 drives the movement of the traction rod 5, and the movement of the traction rod 5 can achieve the effect of resetting the piston 4. After the spring 14 has been used for a long time, the elastic potential energy of the spring 14 can be observed through the observation groove 16. When the elastic potential energy of the spring 14 decreases, the slider 13 can be pulled upward so that the two sliders 13 rise to the outside of the first chute plate 11 and the second chute plate 12 respectively, thereby achieving the effect of facilitating the removal and replacement of the spring 14.
[0027] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0028] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A clean room pressure difference automatic regulating device, comprising a base (1), characterized in that: A clean room (2) is fixedly mounted on the top of the base (1), a housing (17) is fixedly mounted on the top of the base (1), a sleeve (3) is fixedly mounted on the surface of the clean room (2) via an opening, a piston (4) is slidably connected to the interior of the sleeve (3), a traction rod (5) is fixedly mounted on the surface of the piston (4), a traction plate (6) is fixedly mounted on the front end of the traction rod (5), and an adjustment mechanism is provided at the front end of the traction plate (6).
2. The clean room pressure difference automatic adjustment device according to claim 1, characterized in that: The adjustment mechanism comprises sealing rods (7) fixedly connected to both sides of the rear of the traction plate (6); sealing sleeves (8) are fixedly installed on both sides of the surface of the clean room (2) through openings; the rear end of the sealing rod (7) extends to the interior of the sealing sleeve (8); and a ventilation groove (9) is provided on the top of the sealing rod (7).
3. The clean room pressure difference automatic adjustment device according to claim 1, characterized in that: A first slide plate (11) is fixedly mounted on the surface of the clean room (2), a second slide plate (12) is fixedly mounted on the surface of the traction plate (6), a slider (13) is slidably connected inside the first slide plate (11) and the second slide plate (12), and a spring (14) is fixedly mounted between the two sliders (13).
4. The clean room pressure difference automatic regulating device according to claim 3, characterized in that: An observation panel (15) is fixedly mounted on the surface of the clean room (2) and located on the right side of the first slide plate (11).
5. The clean room pressure difference automatic regulating device according to claim 4, characterized in that: An observation slot (16) is provided on the left side of the observation plate (15).
6. The clean room pressure difference automatic regulating device according to claim 1, characterized in that: Filter cartridges (10) are fixedly mounted on both sides of the front portion of the inner cavity of the clean room (2).