Foldable positive and negative pressure laminar flow clean cover

Abstract

The foldable positive and negative pressure laminar flow clean cover comprises a foldable cover body, an air cleaning system and a negative pressure fan assembly, the air cleaning system and the negative pressure fan assembly are arranged on the foldable cover body, the foldable cover body comprises a fixed frame, a first folding structure and a second folding structure, and the first folding structure and the second folding structure are arranged on the two sides of the fixed frame respectively. The first folding structure and the second folding structure are identical in structure, and each of the first folding structure and the second folding structure comprises a top panel, a bottom panel, a first side panel, a second side panel and a third side panel; the top panel and the bottom panel are rotationally connected to the top edge and the bottom edge of the fixed frame respectively; the first side panel and the second side panel are rotationally connected to the left side edge and the right side edge of the fixed frame respectively; the third side panel is rotationally connected to the end, away from the fixed frame, of the top panel, the bottom panel, the first side panel or the second side panel. The air cleaning system integrated with the air conditioner is convenient to assemble and disassemble and higher in practicability.

Description

Technical Field

[0001] The present application relates to the technical field of laminar flow clean hoods, and in particular to a foldable positive and negative pressure laminar flow clean hood. Background Art

[0002] Laminar clean hoods are divided into vertical laminar clean hoods and horizontal laminar clean hoods. The vertical laminar clean hood forms a clean air flow layer after the clean air passes through the flow net at a certain wind speed, so that the clean air flows vertically in one direction, thereby ensuring that the high cleanliness required by the process is achieved in the working area. The installation methods of vertical laminar clean hoods include hanging type (ceiling) and floor bracket type. The floor bracket type laminar clean hood mainly includes a bracket and a cover assembly. The bracket can support the cover assembly to a certain height to meet the operation needs. The cover assembly (wind chamber assembly) has a certain area, so that a certain range of clean space can be provided.

[0003] At present, the existing laminar flow clean hoods are generally of fixed size, without air purification system, and require an external disinfection machine; the hood body is generally isolated from the outside world by curtains around it, without air conditioning system, and the internal space is relatively stuffy; it needs to be assembled and disassembled on site, the assembly and disassembly process is relatively cumbersome, and it cannot be used outdoors, and its practicality is poor. Therefore, the utility model proposes a foldable positive and negative pressure laminar flow clean hood. Utility Model Content

[0004] The embodiment of the present application provides a foldable positive and negative pressure laminar flow clean hood, which is equipped with an air purification system and is easy to assemble and disassemble, and is more practical.

[0005] In view of this, the present application provides a foldable positive and negative pressure laminar flow clean hood, comprising: a foldable hood body and an air cleaning system and a negative pressure fan assembly arranged on the foldable hood body;

[0006] The foldable cover body comprises a fixed frame and a first folding structure and a second folding structure respectively arranged on two sides of the fixed frame;

[0007] The structures of the first folding structure and the second folding structure are completely the same, and both the first folding structure and the second folding structure include a top panel, a bottom panel, a first side panel, a second side panel and a third side panel;

[0008] The top panel and the bottom panel are rotatably connected to the top edge and the bottom edge of the fixed frame respectively;

[0009] The first side panel and the second side panel are rotatably connected to the left edge and the right edge of the fixed frame respectively;

[0010] The third side panel is rotatably connected to an end of the top panel, the bottom panel, the first side panel or the second side panel away from the fixing frame.

[0011] Optionally, a wind cavity structure is provided in the top panel;

[0012] The wind cavity structure is provided with a flow-averaging screen for forming a uniform vertical laminar flow into the incoming airflow;

[0013] The air purification system is arranged at the middle position of the top of the fixed frame;

[0014] The air purification system comprises a filter air inlet assembly for inputting clean air into the air cavity structure.

[0015] Optionally, the air outlet of the filtered air inlet assembly is connected to the air cavity structure.

[0016] Optionally, the filtering air inlet assembly includes an air inlet fan and a filtering and disinfecting module for purifying the air.

[0017] Optionally, the filtering and disinfection module includes a primary filter, a plasma, an ozone reduction net and a high-efficiency filter which are sequentially arranged along the air inlet direction.

[0018] Optionally, the air purification system further comprises an air conditioning component for adjusting the temperature and humidity inside the foldable cover.

[0019] Optionally, the number of the negative pressure fan assemblies is two, and the two negative pressure fan assemblies are respectively arranged on both sides of the top of the fixed frame;

[0020] The fixed frame is provided with a negative pressure air outlet channel for extracting the air inside the foldable cover;

[0021] The negative pressure fan assembly is located at the outlet of the negative pressure air outlet channel.

[0022] Optionally, the negative pressure fan assembly includes a centrifugal fan and a filter.

[0023] Optionally, casters are provided at the bottom of the fixed frame;

[0024] The bottom of the bottom panel is provided with adjustable supporting feet.

[0025] Optionally, an entry door is provided on the first side panel, the second side panel or the third side panel.

[0026] It can be seen from the above technical scheme that the embodiment of the present application has the following advantages: the foldable positive and negative pressure laminar clean hood includes a foldable hood body and an air cleaning system and a negative pressure fan assembly arranged on the foldable hood body. By setting the foldable hood body, it is easy to assemble and disassemble, and can be applied to outdoor environments, and has strong practicality. Specifically, when folding, the third side panel can be rotated first to fold it onto the adjacent panel, and then the first side panel, the second side panel, the top panel and the bottom panel can be rotated in sequence to fold them all onto the fixed frame, that is, the folding operation of the foldable hood body is completed; when unfolding, the bottom panel, the top panel, the second side panel, the first side panel and the third side panel can be unfolded in sequence; by connecting the air cleaning system and the foldable hood body as one, the laminar clean hood structure can be made more compact, and the utilization rate of the space is improved, and through the cooperation of the air cleaning system and the negative pressure fan assembly, the internal space of the foldable hood body can form positive pressure or negative pressure, thereby effectively improving the practicality of the laminar clean hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of the foldable positive and negative pressure laminar flow clean hood in an unfolded state in an embodiment of the present application;

[0028] Figure 2 A top view of the foldable positive and negative pressure laminar flow clean hood in the embodiment of the present application in an unfolded state;

[0029] Figure 3 It is a right view of the foldable positive and negative pressure laminar flow clean hood in the embodiment of the present application in the unfolded state;

[0030] Figure 4 It is a rear view of the foldable positive and negative pressure laminar flow clean hood in the embodiment of the present application in the unfolded state;

[0031] Figure 5 for Figure 3 Cross-section view along the AA direction;

[0032] Figure 6 for Figure 4 Cross-section along the BB direction;

[0033] Figure 7 The folding process of the foldable positive and negative pressure laminar flow clean hood in the embodiment of the present application Figure 1 ;

[0034] Figure 8 The folding process of the foldable positive and negative pressure laminar flow clean hood in the embodiment of the present application Figure 2 ;

[0035] Fig. 9 The folding process of the foldable positive and negative pressure laminar flow clean hood in the embodiment of the present application Figure 3 ;

[0036] Fig.10 The folding process of the foldable positive and negative pressure laminar flow clean hood in the embodiment of the present application Figure 4 ;

[0037] Fig.11 This is a schematic structural diagram of the foldable positive and negative pressure laminar flow clean hood in a folded state in an embodiment of the present application;

[0038] Fig.12 This is a schematic diagram of the structure of the air purification system in the embodiment of the present application after the top cover plate of the housing is hidden;

[0039] Fig.13 This is a cross-sectional view of the air filter inlet assembly in the embodiment of the present application;

[0040] Fig.14 This is a schematic diagram of the structure of the filtering and disinfecting module in the embodiment of the present application;

[0041] Fig.15 This is a schematic diagram of the positive pressure wind direction inside the foldable positive and negative pressure laminar flow clean hood in the embodiment of the present application;

[0042] Fig.16 Schematic diagram of negative pressure wind direction inside the foldable positive and negative pressure laminar flow clean hood in the embodiment of the present application;

[0043] Wherein, the accompanying drawings are marked as follows:

[0044] 1-foldable cover, 11-fixed frame, 111-negative pressure air outlet channel, 12-top panel, 121-opening, 13-bottom panel, 14-first side panel, 15-second side panel, 16-third side panel, 2-air purification system, 21-filter air inlet assembly, 211-air inlet fan, 212-filter disinfection module, 2121-primary filter, 2122-plasma, 2123-ozone reduction net, 2124-high efficiency filter, 213-air outlet, 22-air conditioning assembly, 3-negative pressure fan assembly, 4-castors, 5-adjustable support feet, 6-entry and exit doors. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] This application provides an embodiment of a foldable positive and negative pressure laminar flow clean hood. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.15 and Fig.16 .

[0049] The foldable positive and negative pressure laminar flow clean hood in this embodiment includes: a foldable hood body 1 and an air cleaning system 2 and a negative pressure fan assembly 3 arranged on the foldable hood body 1, the foldable hood body 1 includes a fixed frame 11 and a first folding structure and a second folding structure respectively arranged on both sides of the fixed frame 11, the structures of the first folding structure and the second folding structure are exactly the same, and the first folding structure and the second folding structure both include a top panel 12, a bottom panel 13, a first side panel 14, a second side panel 15 and a third side panel 16; the top panel 12 and the bottom panel 13 are respectively rotatably connected to the top edge and the bottom edge of the fixed frame 11; the first side panel 14 and the second side panel 15 are respectively rotatably connected to the left edge and the right edge of the fixed frame 11; the third side panel 16 is rotatably connected to the end of the top panel 12, the bottom panel 13, the first side panel 14 or the second side panel 15 away from the fixed frame 11.

[0050] It should be noted that the foldable positive and negative pressure laminar clean hood includes a foldable hood body 1 and an air cleaning system 2 and a negative pressure fan assembly 3 arranged on the foldable hood body 1. By setting the foldable hood body 1, it is easy to assemble and disassemble, can be applied to outdoor environments, and has strong practicality. Specifically, when folding, the third side panel 16 can be rotated first to fold it onto the adjacent panel, and then the first side panel 14, the second side panel 15, the top panel 12 and the bottom panel 13 are rotated in sequence to fold them all onto the fixed frame 11, that is, the folding operation of the foldable hood body 1 is completed; when unfolding, the bottom panel 13, the top panel 12, the second side panel 15, the first side panel 14 and the third side panel 16 are unfolded in sequence; by connecting the air cleaning system 2 and the foldable hood body 1 as one, the laminar clean hood structure can be made more compact, the utilization rate of the space is improved, and through the cooperation of the air cleaning system 2 and the negative pressure fan assembly 3, the internal space of the foldable hood body 1 can form positive pressure or negative pressure, thereby effectively improving the practicality of the laminar clean hood.

[0051] The above is an embodiment of a foldable positive and negative pressure laminar flow clean hood provided in the embodiment of the present application. The following is an embodiment of a foldable positive and negative pressure laminar flow clean hood provided in the embodiment of the present application. For details, please refer to Figures 1 to 16 .

[0052] The foldable positive and negative pressure laminar flow clean hood in this embodiment includes: a foldable hood body 1 and an air cleaning system 2 and a negative pressure fan assembly 3 arranged on the foldable hood body 1, the foldable hood body 1 includes a fixed frame 11 and a first folding structure and a second folding structure respectively arranged on both sides of the fixed frame 11, the structures of the first folding structure and the second folding structure are exactly the same, and the first folding structure and the second folding structure both include a top panel 12, a bottom panel 13, a first side panel 14, a second side panel 15 and a third side panel 16; the top panel 12 and the bottom panel 13 are respectively rotatably connected to the top edge and the bottom edge of the fixed frame 11; the first side panel 14 and the second side panel 15 are respectively rotatably connected to the left edge and the right edge of the fixed frame 11; the third side panel 16 is rotatably connected to the end of the top panel 12, the bottom panel 13, the first side panel 14 or the second side panel 15 away from the fixed frame 11.

[0053] A wind cavity structure is arranged in the top panel 12, and a flow equalizing mesh plate is arranged in the wind cavity structure for forming a uniform vertical laminar flow of the incoming airflow. The air purification system 2 is arranged in the middle position of the top of the fixed frame 11, and the air purification system 2 includes a filtering air inlet assembly 21 for inputting clean air into the wind cavity structure; the air outlet 213 of the filtering air inlet assembly 21 is connected to the wind cavity structure.

[0054] It should be noted that the air outlet 213 of the filtering air inlet assembly 21 is arranged on the side where the filtering air inlet assembly 21 is in contact with the top panel 12, and a corresponding opening 121 is provided on the side of the top panel 12 close to the filtering air inlet assembly 21 for sealingly connecting with the air outlet 213 of the filtering air inlet assembly 21 when the foldable cover body 1 is fully unfolded. The opening 121 is communicated with the wind cavity structure inside the top panel 12, so that when the foldable cover body 1 is fully unfolded, the air outlet 213 of the filtering air inlet assembly 21 can be communicated with the wind cavity structure inside the top panel 12 through the opening 121.

[0055] The filter air inlet assembly 21 includes an air inlet fan 211 and a filter sterilization module 212 for purifying air. Specifically, the filter sterilization module 212 is arranged at the air inlet of the filter air inlet assembly 21, and the air inlet fan 211 is arranged at the air outlet 213 of the filter air inlet assembly 21.

[0056] Specifically, the filtering and disinfection module 212 can be installed at the air inlet of the filtering air inlet assembly 21 through a pull-out structure. The filtering and disinfection module 212 includes a primary filter 2121, a plasma 2122, an ozone reduction net 2123 and a high-efficiency filter 2124 arranged in sequence along the air inlet direction.

[0057] The air purification system 2 further includes an air conditioning component 22 for adjusting the temperature and humidity inside the foldable cover 1 .

[0058] It can be understood that the installation, operation and control of the air-conditioning component 22 are independent, and do not cooperate with the air inlet fan 211 and the filtering and disinfection module 212, but the cold and hot air inside are clean air that has been filtered and disinfected, that is, the operation of the air-conditioning component 22 will not change the cleanliness inside the laminar clean hood, but only adjust the temperature and humidity inside the clean hood.

[0059] There are two negative pressure fan assemblies 3, and the two negative pressure fan assemblies 3 are respectively arranged on both sides of the top of the fixed frame 11; a negative pressure air outlet channel 111 for extracting the air inside the foldable cover body 1 is opened on the fixed frame 11, and the negative pressure fan assembly 3 is located at the outlet of the negative pressure air outlet channel 111.

[0060] Specifically, the inlet of the negative pressure air outlet channel 111 is located at the bottom of the inner side of the fixed frame 11, and the negative pressure fan assembly 3 includes a centrifugal fan and a filter.

[0061] Casters 4 are provided at the bottom of the fixed frame 11 for easy movement; adjustable supporting feet 5 are provided at the bottom of the bottom panel 13. By adjusting the height of the adjustable supporting feet 5, the unfolded laminar clean hood can be kept horizontal, so that the laminar clean hood can be used in a variety of terrain environments and is more practical.

[0062] The first side panel 14 , the second side panel 15 or the third side panel 16 may be provided with an access door 6 .

[0063] After the device is fully unfolded, the air purification system 2 can generate clean air and input it into the wind cavity structure in the top panel 12. The clean air forms laminar clean air through the flow-averaging mesh plate in the wind cavity structure, which can make the air quality inside the laminar clean hood reach Class 100 cleanliness and form a positive pressure inside the laminar clean hood. Starting the negative pressure fan assembly 3 can form a negative pressure inside the laminar clean hood.

[0064] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A foldable positive and negative pressure laminar flow clean hood, characterized in that: include: A foldable cover body and an air purification system and a negative pressure fan assembly arranged on the foldable cover body; The foldable cover body comprises a fixed frame and a first folding structure and a second folding structure respectively arranged on two sides of the fixed frame; The structures of the first folding structure and the second folding structure are completely the same, and both the first folding structure and the second folding structure include a top panel, a bottom panel, a first side panel, a second side panel and a third side panel; The top panel and the bottom panel are rotatably connected to the top edge and the bottom edge of the fixed frame respectively; The first side panel and the second side panel are rotatably connected to the left edge and the right edge of the fixed frame respectively; The third side panel is rotatably connected to an end of the top panel, the bottom panel, the first side panel or the second side panel away from the fixing frame.

2. The foldable positive and negative pressure laminar flow clean hood according to claim 1, characterized in that: A wind cavity structure is provided in the top panel; The wind cavity structure is provided with a flow-averaging screen for forming a uniform vertical laminar flow into the incoming airflow; The air purification system is arranged at the middle position of the top of the fixed frame; The air purification system comprises a filter air inlet assembly for inputting clean air into the air cavity structure.

3. The foldable positive and negative pressure laminar flow clean hood according to claim 2, characterized in that: The air outlet of the filtering air inlet assembly is communicated with the air cavity structure.

4. The foldable positive and negative pressure laminar flow clean hood according to claim 2, characterized in that: The filtering air intake component includes an air intake fan and a filtering and disinfecting module for purifying the air.

5. The foldable positive and negative pressure laminar flow clean hood according to claim 4, characterized in that: The filtering and sterilizing module comprises a primary filter, a plasma, an ozone reduction net and a high efficiency filter which are sequentially arranged along the air inlet direction.

6. The foldable positive and negative pressure laminar flow clean hood according to claim 2, characterized in that: The air purification system also includes an air conditioning component for adjusting the temperature and humidity inside the foldable cover.

7. The foldable positive and negative pressure laminar flow clean hood according to claim 1, characterized in that: The number of the negative pressure fan assemblies is two, and the two negative pressure fan assemblies are respectively arranged on both sides of the top of the fixed frame; The fixed frame is provided with a negative pressure air outlet channel for extracting the air inside the foldable cover; The negative pressure fan assembly is located at the outlet of the negative pressure air outlet channel.

8. The foldable positive and negative pressure laminar flow clean hood according to claim 7, characterized in that: The negative pressure fan assembly includes a centrifugal fan and a filter.

9. The foldable positive and negative pressure laminar flow clean hood according to claim 1, characterized in that: The bottom of the fixed frame is provided with casters; The bottom of the bottom panel is provided with adjustable supporting feet.

10. The foldable positive and negative pressure laminar flow clean hood according to claim 1, characterized in that: The first side panel, the second side panel or the third side panel is provided with an entry door.

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