FFU (fan filter unit) for workshop

Abstract

The utility model relates to the technical field of purification equipment application, and discloses an FFU (fan filter unit) for workshops, which comprises a casing, the lower portion of the casing is connected with a connecting plate through two fixing mechanisms, the upper portion of the connecting plate is provided with a limit coaming, a filter component is arranged in the limit coaming, and the limit coaming is connected with the filter component. A plurality of pressing mechanisms are arranged in the middle of the limiting surrounding plate. According to the FFU fan filter unit for the workshop, the connecting plate is hung below the machine shell through the telescopic frame, the situation that when the connecting plate is installed back to the lower portion of the machine shell, the connecting plate or a filter assembly falls off due to hand slipping and the like is prevented, the safety in the installation process is effectively improved, the second handle is held by the two hands, the connecting rod is hooked by the fingers, and therefore the connecting plate or the filter assembly is prevented from falling off. And when the connecting plate cannot be pushed, the connecting rod is loosened, the first spring pushes the connecting block, the inserting rod is inserted into the hole, installation is completed, and operation is quite easy and convenient.

Description

Technical Field

[0001] This utility model relates to the field of purification equipment application technology, and in particular to an FFU fan filter unit for workshop use. Background Technology

[0002] A fan filter unit (FFU) is a self-powered air supply and filtration device, a modular terminal air supply unit with filtration capabilities. The FFU draws in air from the top and filters it through a HEPA filter. The filtered clean air is then uniformly delivered across the entire outlet surface at a speed of approximately 0.45 m / s ± 20%. FFU fan filter units can be modularly connected and are widely used in workshops.

[0003] Currently, when installing existing FFU air filtration units, the internal components are usually fixed inside the casing, requiring the entire unit to be disassembled for maintenance, which is a very cumbersome operation. Utility Model Content

[0004] The main purpose of this utility model is to provide an FFU (Fan Filter Unit) for workshop use, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a workshop FFU fan filter unit, including a housing, a connecting plate connected to the lower part of the housing through two fixing mechanisms, a limiting plate provided on the upper part of the connecting plate, a filter assembly provided inside the limiting plate, a plurality of pressing mechanisms provided in the middle of the limiting plate, and the upper part of the pressing mechanisms provided on the upper part of the filter assembly.

[0006] The fixing mechanism includes a fixing shell, a plug rod, a connecting block, a spring, a connecting rod, and holes. The holes are opened at the four corners of the housing. The fixing shell is installed on the front and rear sides of one side of the connecting plate. The outer periphery of the plug rod is slidably connected to the middle of the fixing shell. The upper part of the connecting block is fixedly connected to the middle of the plug rod. The spring is sleeved on the outer periphery of the plug rod. The spring is set on the side of the connecting block near the filter assembly. The lower end of the connecting block is fixedly connected to the front and rear ends of the connecting rod.

[0007] Preferably, one end of the insertion rod is disposed inside the hole.

[0008] Preferably, a first handle is provided on the upper left and right sides of the housing, and a second handle is provided on the lower left and right sides of the connecting plate.

[0009] Preferably, the upper part of the connecting plate is disposed at the lower end of the multiple telescopic frames, and the upper part of the multiple telescopic frames is disposed on the inner top wall of the housing.

[0010] Preferably, a sealing ring is provided at the lower part of the housing, and a rubber ring is provided on the upper side of the middle part of the connecting plate, with the rubber ring located at the lower part of the filter assembly.

[0011] Preferably, the pressing mechanism includes a sleeve, a limiting plate, a pull rod, a second spring, and a pressing plate. The outer periphery of the sleeve is fixedly connected to the middle part of the limiting plate, the outer periphery of the pull rod is slidably connected to the middle part of the sleeve, the outer periphery of the limiting plate is slidably connected to the inside of the sleeve, the middle part of the limiting plate is fixedly connected to the lower end of the pull rod, the upper end of the pull rod is fixedly connected to one end of the pressing plate, the second spring is sleeved on the outer periphery of the pull rod, and the second spring is disposed on the upper part of the limiting plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The connecting plate is suspended below the housing using a telescopic frame to prevent it from falling due to slippage or other reasons when reinstalling it. This effectively improves installation safety. Hold handle two with both hands and hook the connecting rod with your fingers to move the connecting block toward the filter assembly, compressing the spring one. Finally, push the connecting plate upward. When the connecting plate cannot be pushed further, release the connecting rod, allowing the spring one to push the connecting block and insert the insertion rod into the hole, thus completing the installation and fixing. The operation is very simple and convenient. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an FFU (Fan Filter Unit) for workshop use according to the present invention;

[0015] Figure 2 This is a schematic diagram of the telescopic frame structure of an FFU (Fan-Full Unit) filter unit for workshop use according to this utility model;

[0016] Figure 3 This is a schematic diagram of the connecting plate structure of an FFU (Fan-Filter Unit) for workshop use according to this utility model;

[0017] Figure 4 This is a schematic diagram of the fixing mechanism of an FFU (Fan Filter Unit) for workshop use according to this utility model;

[0018] Figure 5 This is a schematic diagram of the pressing mechanism of an FFU (Fan Filter Unit) for workshop use according to this utility model.

[0019] In the diagram: 1. Housing; 2. Handle 1; 3. Connecting plate; 4. Limiting plate; 5. Filter assembly; 6. Fixing mechanism; 601. Fixing shell; 602. Insert rod; 603. Connecting block; 604. Spring 1; 605. Connecting rod; 7. Pressing mechanism; 701. Sleeve; 702. Limiting plate; 703. Pull rod; 704. Spring 2; 705. Pressing plate; 8. Telescopic frame; 9. Handle 2. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-5 As shown, a workshop FFU fan filter unit includes a housing 1. The lower part of the housing 1 is connected to a connecting plate 3 through two fixing mechanisms 6. A limiting plate 4 is provided on the upper part of the connecting plate 3. A filter assembly 5 is provided inside the limiting plate 4. Multiple pressing mechanisms 7 are provided in the middle of the limiting plate 4. The upper part of the pressing mechanism 7 is provided on the upper part of the filter assembly 5.

[0022] In this embodiment, the fixing mechanism 6 includes a fixing shell 601, a plug rod 602, a connecting block 603, a spring 604, a connecting rod 605, and holes. The holes are opened at the four corners of the housing 1. The fixing shell 601 is installed on the front and rear sides of one side of the connecting plate 3. The outer periphery of the plug rod 602 is slidably connected to the middle of the fixing shell 601. The upper part of the connecting block 603 is fixedly connected to the middle of the plug rod 602. The spring 604 is sleeved on the outer periphery of the plug rod 602. The spring 604 is located on the side of the connecting block 603 near the filter assembly 5. The lower end of the connecting block 603 is fixedly connected to the front and rear ends of the connecting rod 605. One end of the plug rod 602 is located inside the hole. The upper left and right sides of the housing 1 are provided with handles 2. The lower left and right sides of the connecting plate 3 are provided with handles 9. The upper part of the connecting plate 3 is located at the lower end of multiple telescopic frames 8. The upper part of the multiple telescopic frames 8 is located on the inner top wall of the housing 1.

[0023] Specifically, the connecting plate 3 is suspended below the housing 1 by the telescopic frame 8 to prevent the connecting plate 3 or filter assembly 5 from falling due to slippage or other reasons when the connecting plate 3 is installed back into the lower part of the housing 1, effectively improving the safety during installation. Hold the handle 2 9 with both hands and hook the connecting rod 605 with your fingers to move the connecting block 603 toward the filter assembly 5, thereby compressing the spring 1 604. Finally, push the connecting plate 3 upward. When the connecting plate 3 can no longer be pushed, release the connecting rod 605, so that the spring 1 604 pushes the connecting block 603, allowing the insertion rod 602 to be inserted into the hole, thus completing the installation and fixing. The operation is very simple and convenient.

[0024] In this embodiment, a sealing ring is provided at the lower part of the housing 1, and a rubber ring is provided on the upper side of the middle part of the connecting plate 3. The rubber ring is located at the lower part of the filter assembly 5. The pressing mechanism 7 includes a sleeve 701, a limiting plate 702, a pull rod 703, a second spring 704, and a pressing plate 705. The outer periphery of the sleeve 701 is fixedly connected to the middle part of the limiting plate 4. The outer periphery of the pull rod 703 is slidably connected to the middle part of the sleeve 701. The outer periphery of the limiting plate 702 is slidably connected to the inside of the sleeve 701. The middle part of the limiting plate 702 is fixedly connected to the lower end of the pull rod 703. The upper end of the pull rod 703 is fixedly connected to one end of the pressing plate 705. The second spring 704 is sleeved on the outer periphery of the pull rod 703 and is located on the upper part of the limiting plate 702.

[0025] Specifically, all the pressing plates 705 are moved to one side, then the filter assembly 5 is placed inside the limiting plate 4. Finally, the pressing plates 705 are pulled, causing the pull rod 703 to move the limiting plate 702 upward and compress the second spring 704. Finally, the pressing plates 705 are placed above the filter assembly 5 and the pressing plates 705 are released, causing the second spring 704 to push the limiting plate 702 downward, thereby causing the pull rod 703 to pull the pressing plates 705 downward, fixing the filter assembly 5 inside the limiting plate 4 and preventing the filter assembly 5 from shaking.

[0026] Working principle:

[0027] Move all the pressing plates 705 to one side, then place the filter assembly 5 inside the limiting plate 4. Finally, pull the pressing plate 705, causing the pull rod 703 to move the limiting plate 702 upward and compress the second spring 704. Then, place the pressing plate 705 above the filter assembly 5 and release it, causing the second spring 704 to push the limiting plate 702 downward. This causes the pull rod 703 to pull the pressing plate 705 downward, fixing the filter assembly 5 inside the limiting plate 4 to prevent it from shaking. The connecting plate 3 is then suspended below the housing 1 by the telescopic frame 8 to prevent... When reinstalling the connecting plate 3 back into the lower part of the housing 1, the connecting plate 3 or the filter assembly 5 may fall off due to slippage or other reasons. To effectively improve the safety during installation, hold the handle 29 with both hands and hook the connecting rod 605 with your fingers, so that the connecting block 603 moves towards the filter assembly 5 and compresses the spring 1 604. Finally, push the connecting plate 3 upward. When the connecting plate 3 can no longer be pushed, release the connecting rod 605, so that the spring 1 604 pushes the connecting block 603, so that the insertion rod 602 is inserted into the hole, thereby completing the installation and fixing. The operation is very simple and convenient.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A workshop FFU (Fan Filter Unit) for use, comprising a housing (1), characterized in that: The lower part of the housing (1) is connected to a connecting plate (3) by two fixing mechanisms (6). A limiting plate (4) is provided on the upper part of the connecting plate (3). A filter assembly (5) is provided inside the limiting plate (4). A plurality of pressing mechanisms (7) are provided in the middle of the limiting plate (4). The upper part of the pressing mechanism (7) is provided on the upper part of the filter assembly (5). The fixing mechanism (6) includes a fixing shell (601), a plug rod (602), a connecting block (603), a spring (604), a connecting rod (605), and holes. The holes are opened at the four corners of the housing (1). The fixing shell (601) is installed on the front and rear sides of one side of the connecting plate (3). The outer periphery of the plug rod (602) is slidably connected to the middle part of the fixing shell (601). The upper part of the connecting block (603) is fixedly connected to the middle part of the plug rod (602). The spring (604) is sleeved on the outer periphery of the plug rod (602). The spring (604) is set on the side of the connecting block (603) near the filter assembly (5). The lower end of the connecting block (603) is fixedly connected to the front and rear ends of the connecting rod (605).

2. The FFU (Fan Filter Unit) for workshop use according to claim 1, characterized in that: One end of the insertion rod (602) is set inside the hole.

3. The FFU (Fan Filter Unit) for workshop use according to claim 1, characterized in that: The upper left and right sides of the housing (1) are provided with handle one (2), and the lower left and right sides of the connecting plate (3) are provided with handle two (9).

4. The FFU (Fan Filter Unit) for workshop use according to claim 1, characterized in that: The upper part of the connecting plate (3) is set at the lower end of multiple telescopic frames (8), and the upper part of the multiple telescopic frames (8) is set on the inner top wall of the casing (1).

5. The FFU (Fan Filter Unit) for workshop use according to claim 1, characterized in that: A sealing ring is provided at the lower part of the housing (1), and a rubber ring is provided on the upper side of the middle part of the connecting plate (3). The rubber ring is located at the lower part of the filter assembly (5).

6. The FFU (Fan Filter Unit) for workshop use according to claim 1, characterized in that: The pressing mechanism (7) includes a sleeve (701), a limiting plate (702), a pull rod (703), a second spring (704), and a pressing plate (705). The outer periphery of the sleeve (701) is fixedly connected to the middle part of the limiting plate (4). The outer periphery of the pull rod (703) is slidably connected to the middle part of the sleeve (701). The outer periphery of the limiting plate (702) is slidably connected to the inside of the sleeve (701). The middle part of the limiting plate (702) is fixedly connected to the lower end of the pull rod (703). The upper end of the pull rod (703) is fixedly connected to one end of the pressing plate (705). The second spring (704) is sleeved on the outer periphery of the pull rod (703) and is located on the upper part of the limiting plate (702).

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