FFU convenient to assemble and disassemble super-clean ventilation cabinet

Abstract

This utility model discloses an ultra-clean fume hood with convenient FFU (Fan Filter Unit) assembly and disassembly, including a cabinet body and FFUs. A baffle plate is installed inside the cabinet body, dividing the chamber into a purification chamber and a ventilation duct. A placement area is located above the purification chamber on the cabinet body. The front of the placement area is open, and a lifting and transfer mechanism connected to the cabinet body is located above it. An air inlet is provided between the placement area and the purification chamber. The FFU is placed in the placement area, with its upper part quickly connected to the lifting and transfer mechanism, and its lower surface having a protruding air outlet. An operating port is provided on the front of the purification chamber, and a perforated plate is provided on the desktop of the purification chamber. The lower part of the purification chamber communicates with the lower part of the ventilation duct. The ventilation duct communicates with the exhaust port of the fume hood. The lifting and transfer mechanism is used to lift the FFU and move it out of or into the placement area. This utility model ensures the cleanliness of the purification chamber and protects samples from contamination. Furthermore, the lifting and transfer mechanism allows for labor-saving, convenient, and quick assembly and disassembly of the FFU.

Description

Technical Field

[0001] This utility model relates to the field of laboratory technology, and in particular to an ultra-clean fume hood with easy assembly and disassembly of an FFU. Background Technology

[0002] Existing fume hoods suffer from the following problems due to structural limitations:

[0003] 1. The purification chamber adopts an upper exhaust structure design. The exhaust airflow flows from the operation window to the purification chamber, and then flows upward through the guide plate inside the chamber to the top exhaust port for discharge. This can easily stir up dust particles or gaseous pollutants on the purification chamber table, causing sample contamination. In addition, pollutants attached to the back panel and side panel of the purification chamber will return to the purification chamber without exhaust, causing backflow contamination and making the purification chamber unable to meet the cleanliness requirements.

[0004] 2. The FFU is connected to the cabinet by screws, which is cumbersome and complicated to install and disassemble, and is difficult and inefficient to install and maintain, which cannot meet the needs of existing users.

[0005] Therefore, in order to solve the above problems, an ultra-clean fume hood was developed, which can ensure the cleanliness of the purification chamber, protect the samples from contamination, and allow for quick and easy installation and removal of the FFU, greatly improving its practicality. Utility Model Content

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] A cleanroom fume hood with easy-to-install and disassemble FFU is characterized in that it includes a cabinet body and an FFU, wherein a baffle is provided in the cavity of the cabinet body, and the baffle divides the cavity into a purification chamber and a ventilation duct.

[0008] A placement area is provided on the cabinet above the purification chamber;

[0009] The front of the placement area is open, and a lifting and conveying mechanism connected to the cabinet is installed above it; an air inlet is provided between the placement area and the purification chamber.

[0010] The FFU is installed in the placement area, and its upper part is quickly connected to the lifting and transfer mechanism. The lower surface of the FFU has a protruding air outlet.

[0011] An operating port is provided on the front side of the purification chamber, a perforated plate is provided on the table of the purification chamber, and the lower part of the purification chamber is connected to the lower part of the ventilation duct.

[0012] The ventilation duct is connected to the exhaust port of the fume hood;

[0013] The lifting and transferring mechanism is used to lift the FFU and move the FFU out of or into the placement area;

[0014] The FFU has an installed state and a lifted state;

[0015] In the installation state, the FFU, under the action of gravity, seals and fits the air outlet and air inlet together.

[0016] When in the suspended state, the FFU is suspended in the placement area and the air outlet is disconnected from the air inlet.

[0017] Preferably, the lifting and transferring mechanism includes a support beam, a support rail, a hook, and a locking fastener;

[0018] At least two support beams are provided. Both ends of the support beams are connected to the cabinet via rails. A hook and a locking device are provided between the middle of the support beam and the FFU.

[0019] The hook is fixedly connected to the upper surface of the FFU;

[0020] The locking fastener is fixedly connected to the support beam via a fixing plate, and the lifting ring of the locking fastener is connected to the lifting hook.

[0021] Preferably, the opening of the placement area is provided with a removable baffle.

[0022] Preferably, a sealing element is provided between the air outlet and the air inlet.

[0023] Preferably, an exhaust box is provided at the connection between the purification chamber and the ventilation duct;

[0024] A storage compartment is provided on the cabinet below the purification chamber;

[0025] The exhaust box is located inside the storage cavity;

[0026] The perforated plate is located between the exhaust box and the purification chamber.

[0027] Preferably, the bottom of the exhaust box is provided with a drain interface.

[0028] Preferably, the operating port is provided with a height-adjustable viewing window;

[0029] The cabinet has a control panel located on one side of the viewing window.

[0030] Preferably, a shock-absorbing pad is provided between the FFU and the bottom surface of the placement area.

[0031] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0032] 1. This utility model, through its ventilation structure design, prevents dust particles or gaseous pollutants in the purification chamber from being stirred up or adhering to the side plates and guide plates of the purification chamber, thus removing dust particles or gaseous pollutants from the purification chamber; this not only ensures the cleanliness of the purification chamber but also protects the samples from contamination.

[0033] 2. The lifting and transfer mechanism allows for easy, convenient, and quick disassembly and replacement of FFUs. Attached Figure Description

[0034] Figure 1 This is the front view of the present invention;

[0035] Figure 2 This is a top view of the present invention;

[0036] Figure 3 This is a right-side view of the present invention;

[0037] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0038] The components include: cabinet 1, FFU 2, baffle 3, purification chamber 4, ventilation duct 5, placement area 6, lifting and moving mechanism 7, baffle 8, sealing element 9, exhaust box 11, storage chamber 12, viewing window 13, control panel 14, air inlet 10, operation port 20, perforated plate 30, exhaust port 40, air outlet interface 21, support beam 71, support rail 72, hook 73, locking fastener 74, and drainage interface 111. Detailed Implementation

[0039] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0040] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0043] like Figure 1-4 As shown, a cleanroom fume hood with easy assembly and disassembly of FFU2 includes a cabinet body 1 and an FFU2. A baffle 3 is provided in the cavity of the cabinet body 1, which divides the cavity into a purification chamber 4 and a ventilation duct 5.

[0044] A placement area 6 is provided on the cabinet 1 above the purification chamber 4;

[0045] The front of the placement area 6 is open, and a lifting and transferring mechanism 7 connected to the cabinet 1 is provided above it; an air inlet 10 is provided between the placement area 6 and the purification chamber 4.

[0046] The FFU2 is placed in the placement area 6. The upper part of the FFU2 is quickly connected to the lifting and transfer mechanism 7, and the lower surface is provided with a protruding air outlet 21.

[0047] An operation port 20 is provided on the front side of the purification chamber 4, a perforated plate 30 is provided on the table of the purification chamber 4, and the lower part of the purification chamber 4 is connected to the lower part of the ventilation duct 5.

[0048] The ventilation duct 5 is connected to the exhaust port 40 of the fume hood;

[0049] The lifting and transferring mechanism 7 is used to lift the FFU2 and move the FFU2 out of or into the placement area 6;

[0050] The FFU2 has an installed state and a lifted state;

[0051] In the installation state, under the action of gravity, the FFU2 causes the air outlet 21 to be sealed and fitted with the air inlet 10.

[0052] When in the suspended state, FFU2 is suspended in the placement area 6, and the air outlet 21 is disconnected from the air inlet 10.

[0053] In this embodiment, an FFU2 is installed above the purification chamber 4 and connected to the ventilation duct 5 below. During operation, the FFU2 blows purified air into the purification chamber 4, forcing a downward airflow to form inside the purification chamber 4. The airflow passes through the perforated plate 30 on the table and is discharged through the ventilation duct 5. This ventilation structure design prevents dust particles or gaseous pollutants in the purification chamber 4 from being stirred up or adhering to the side plate and guide plate 3 of the purification chamber 4, thus removing dust particles or gaseous pollutants from the purification chamber 4. This not only ensures the cleanliness of the purification chamber 4 but also protects the sample from contamination.

[0054] In this embodiment, when installing FFU2, first connect FFU2 to the lifting and transferring mechanism 7, then push FFU2 with external force to move it to the set position in the placement area 6 (the air inlet 10 corresponds to the air outlet 21). Then, the external force acts on the lifting and transferring mechanism 7 to release the lifting of FFU2, so that when FFU2 is under its own weight, the air outlet 21 is sealed and fitted into the air inlet 10.

[0055] When FFU2 needs to be repaired or replaced, firstly, external force is applied to the lifting and transfer mechanism 7 to lift FFU2 until FFU2 is suspended in the air and the air outlet 21 is completely separated from the air inlet 10; then, external force is applied to pull FFU2 out of the placement area 6, and then FFU2 is separated from the lifting and transfer mechanism 7.

[0056] Compared with existing technologies, the above structure eliminates the need for additional fasteners to lock the FFU2 during installation, and eliminates the need for additional tools to move the FFU2 in or out of the placement area 6. This makes the disassembly, assembly, and maintenance of the FFU2 convenient, labor-saving, and quick, greatly improving its practicality.

[0057] Furthermore, such as Figure 1-4 As shown, the lifting and transferring mechanism 7 includes a support beam 71, a support rail 72, a hook 73, and a locking fastener 74;

[0058] At least two support beams 71 are provided. The two ends of the support beams 71 are connected to the cabinet 1 through the support rails 72. The middle part of the support beams 71 and the FFU2 are provided with hooks 73 and locking fasteners 74.

[0059] The hook 73 is fixedly connected to the upper surface of FFU2;

[0060] The locking fastener 74 is fixedly connected to the support beam 71 via a fixing plate, and the lifting ring of the locking fastener 74 is connected to the lifting hook 73.

[0061] In this embodiment, the support beam 71 can be moved into or out of the placement area 6 by moving back and forth along the support rail 72. When it is necessary to lift the FFU2 located in the placement area 6, an external force pulls the handle of the locking member 74 upward, thereby moving the lifting ring connected to the hook 73 upward, thus lifting the FFU2 as a whole and suspending it in the placement area 6. After the FFU2 is lifted, an external force pulls the FFU2 forward, which can move it out of the placement area 6. In addition, since the hook 73 and the lifting ring are separable, the FFU2 can be separated from the lifting and transfer mechanism 7 without tools. Thus, the FFU2 can be disassembled and replaced in a labor-saving, convenient, and quick manner.

[0062] In this embodiment, when the FFU2 is placed in the set position of the placement area 6, an external force can pull down the handle of the locking member 74 to make the FFU2, under its own weight, seal and fit the air outlet 21 with the air inlet 10, which is practical and reliable.

[0063] Furthermore, such as Figure 1-4 As shown, a removable baffle 8 is provided on the opening of the placement area 6.

[0064] In this embodiment, to improve aesthetics and facilitate quick assembly and disassembly, the baffle 8 is snap-fitted to the cabinet 1.

[0065] Furthermore, such as Figure 1-4 As shown, in order to improve the sealing of the connection between FFU2 and air inlet 10, a sealing element 9 is provided between the air outlet 21 and air inlet 10.

[0066] Furthermore, such as Figure 1-4 As shown, in order to improve the ventilation effect and allow pollutants to quickly leave the purification chamber 4, an exhaust box 11 is provided at the connection between the purification chamber 4 and the ventilation duct 5.

[0067] A storage cavity 12 is provided on the cabinet 1 below the purification cavity 4;

[0068] The exhaust box 11 is disposed inside the storage cavity 12;

[0069] The perforated plate 30 is located between the exhaust box 11 and the purification chamber 4.

[0070] Furthermore, such as Figure 1-4 As shown, in order to quickly and centrally discharge the pollutants in the exhaust box 11, a drain interface 111 is provided at the bottom of the exhaust box 11.

[0071] Furthermore, such as Figure 1-4 As shown, Figure 1-4 As shown, the operation port 20 is provided with a height-adjustable viewing window 13;

[0072] The cabinet 1 is equipped with a control panel 14 on one side of the viewing window 13.

[0073] In this embodiment, a lifting mechanism for driving the window 13 to rise and fall is provided on the ventilation duct 5; the parameters of FFU2 and the lifting mechanism can be set and controlled through the control panel 14, improving ease of use and practicality.

[0074] Furthermore, to prevent the FFU2 from being damaged by direct contact and impact with the cabinet 1 during placement, a shock-absorbing pad (not shown in the figure) is provided between the FFU2 and the bottom surface of the placement area 6; the shock-absorbing pad is one of rubber, polyurethane, foam material or fiber material.

[0075] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A cleanroom fume hood with easy installation and removal of FFU, characterized in that, The cabinet includes a cabinet and an FFU (Fan Filter Unit). The cabinet is equipped with a baffle plate that divides the chamber into a purification chamber and a ventilation duct. A placement area is provided on the cabinet above the purification chamber; The front of the placement area is open, and a lifting and conveying mechanism connected to the cabinet is installed above it; an air inlet is provided between the placement area and the purification chamber. The FFU is installed in the placement area, and its upper part is quickly connected to the lifting and transfer mechanism. The lower surface of the FFU has a protruding air outlet. An operating port is provided on the front side of the purification chamber, a perforated plate is provided on the table of the purification chamber, and the lower part of the purification chamber is connected to the lower part of the ventilation duct. The ventilation duct is connected to the exhaust port of the fume hood; The lifting and transferring mechanism is used to lift the FFU and move the FFU out of or into the placement area; The FFU has an installed state and a lifted state; In the installation state, the FFU, under the action of gravity, seals and fits the air outlet and air inlet together. When in the suspended state, the FFU is suspended in the placement area and the air outlet is disconnected from the air inlet.

2. The cleanroom fume hood with easy installation and disassembly of FFU according to claim 1, characterized in that, The lifting and transferring mechanism includes a support beam, a support rail, a hook, and a locking mechanism; At least two support beams are provided. Both ends of the support beams are connected to the cabinet via rails. A hook and a locking device are provided between the middle of the support beam and the FFU. The hook is fixedly connected to the upper surface of the FFU; The locking fastener is fixedly connected to the support beam via a fixing plate, and the lifting ring of the locking fastener is connected to the lifting hook.

3. The cleanroom fume hood with easy installation and disassembly of FFU according to claim 1, characterized in that, A removable baffle is provided on the opening of the placement area.

4. The cleanroom fume hood with easy installation and disassembly of FFU according to claim 1, characterized in that, A sealing element is provided between the air outlet and the air inlet.

5. A cleanroom fume hood with easy installation and disassembly of FFU according to claim 1, characterized in that, An exhaust box is installed at the connection between the purification chamber and the ventilation duct. A storage compartment is provided on the cabinet below the purification chamber; The exhaust box is located inside the storage cavity; The perforated plate is located between the exhaust box and the purification chamber.

6. A cleanroom fume hood with easy installation and removal of FFU according to claim 5, characterized in that, The bottom of the exhaust box is equipped with a drainage interface.

7. A cleanroom fume hood with easy installation and disassembly of FFU according to claim 1, characterized in that, The operating port is equipped with a height-adjustable viewing window; The cabinet has a control panel located on one side of the viewing window.

8. A cleanroom fume hood with easy installation and removal of FFU according to claim 1, characterized in that, A shock-absorbing pad is provided between the FFU and the bottom surface of the placement area.

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