Lower disassembly type laminar flow air supply device

Abstract

The utility model relates to the technical field of laminar flow air supply devices, in particular to a detachable laminar flow air supply device which comprises a box body and a filter, the box body is of a hollow cavity structure with openings in the upper end and the lower end, a control fan is installed at the opening in the upper end of the box body, and a protection cover is arranged at the position of the control fan. The protective cover completely shields an opening in the upper end of the box body, an edge extending inwards is arranged at an opening in the lower end of the box body, the edge is connected with the inner wall of the box body through a connecting rib, a gap is formed between the edge and the box body, the filter is detachably installed on the edge through a pressing weight, and a plurality of ventilation openings are formed in the protective cover. The multiple ventilation openings are evenly distributed in the protection cover, handles are arranged at the two ends of the box body, and a knob switch for controlling the draught fan to work is arranged on the side, located on any handle, of the box body. The device has the advantages that the structure is simple, the design is reasonable, the disassembly and assembly structure is simplified, airflow in the device is ensured to be uniform, and turbulence is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of laminar flow air supply devices, specifically a bottom-mounted laminar flow air supply device. Background Technology

[0002] Laminar flow air supply devices generate uniform, parallel, unidirectional airflow through high-efficiency filters, forming a turbulent "laminar flow state" that continuously removes particles and microorganisms from the environment. This laminar flow air supply device is a core means of maintaining high cleanliness in cleanrooms, operating rooms, electronic manufacturing workshops, and other similar settings.

[0003] Existing laminar flow air supply devices have complex structures and unreasonable designs. In actual use, when it is necessary to disassemble the fixed parts at the bottom of the filter, the complex installation structure and the complicated disassembly steps result in a lot of disassembly time and increase the cost of maintenance. To address this problem, the inventors designed a bottom-removable laminar flow air supply device. Utility Model Content

[0004] The purpose of this utility model is to provide a bottom-disassembled laminar flow air supply device, which has the advantages of simple structure, reasonable design, simplified disassembly and assembly structure, and ensures uniform airflow inside the device and avoids turbulence, thus solving the problems mentioned in the above technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bottom-detachable laminar flow air supply device, which includes a housing and a filter. The housing is a hollow cavity structure with openings at both the top and bottom. A control fan is installed at the upper opening of the housing, and a protective cover is provided at the control fan location. The protective cover completely covers the upper opening of the housing. An inwardly extending edge is provided at the lower opening of the housing. The edge is connected to the inner wall of the housing by a connecting rib, and a gap is formed between the edge and the housing. The filter is detachably installed on the edge by a clamp.

[0006] Preferably, the protective cover has multiple ventilation openings, which are evenly distributed on the protective cover.

[0007] Preferably, handles are provided at both ends of the housing, and a rotary switch for controlling the operation of the fan is provided on one side of any of the handles on the housing.

[0008] Preferably, the pressing code includes a fixing part and a supporting part, the fixing part and the supporting part are integrally formed, and a step is formed between the fixing part and the supporting part. One end face of the fixing part is provided with a limit slide rail, and the other end face is provided with a box body fitting part.

[0009] Preferably, the box-fitting part is a smooth plane, and the box-fitting part is located near the inner wall of the box, and the height of the box-fitting part is less than the height of the support part.

[0010] Preferably, the thickness of the fixing part is less than the gap value.

[0011] Preferably, a limiting groove is provided on the side of the edge near the housing, and the limiting groove matches the limiting slide rail.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides a bottom-detachable laminar flow air supply device, including a housing and a filter. The housing is a hollow cavity structure with openings at both the top and bottom. A control fan is installed at the upper opening of the housing, and a protective cover is provided at the control fan. The protective cover completely covers the upper opening of the housing. The overall structure is simple and reasonably designed. The matching of the set limit slide rail and limit groove ensures the installation accuracy. The stepped structure provides stable support. The filter can be released by sliding the pressure code, which greatly shortens the replacement time. The set connecting ribs retain gaps when fixing the edge, which reduces weight and maintains structural rigidity. Moreover, the thickness of the pressure code is less than the gap value, ensuring smooth sliding.

[0014] 2. This utility model allows for filter removal from the bottom of the housing. When the filter needs to be replaced, there is no need to remove the top fan or protective cover, simplifying the maintenance process. Furthermore, the ventilation design at the top of the protective cover avoids local turbulence and ensures laminar flow. Attached Figure Description

[0015] Figure 1 This is an exploded view of the present invention;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 This is a bottom view of the present invention;

[0018] Figure 4 This is a structural diagram of the encoding code of this utility model;

[0019] Figure 5 This is a front view of the inner wall of the box of this utility model.

[0020] The reference numerals and names in the figure are as follows:

[0021] 1. Enclosure; 11. Edge; 12. Connecting rib; 13. Limiting groove; 14. Gap; 2. Protective cover; 3. Ventilation opening; 4. Handle; 5. Rotary switch; 6. Control fan; 7. Filter; 8. Pressure code; 81. Fixing part; 82. Support part; 83. Limiting slide rail; 84. Enclosure fitting part; 85. Step. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] Please see Figures 1 to 5 The present invention provides an embodiment of a bottom-detachable laminar flow air supply device. The laminar flow air supply device includes a housing 1 and a filter 7. The housing 1 is a cavity structure with an internal hollow structure and openings at both the top and bottom. A control fan 6 is installed at the upper opening of the housing 1, and a protective cover 2 is provided at the control fan 6. The protective cover 2 completely covers the upper opening of the housing 1. An inwardly extending edge 11 is provided at the lower opening of the housing 1. The edge 11 is connected to the inner wall of the housing 1 by a connecting rib 12, and a gap 14 is formed between the edge 11 and the housing 1. The filter 7 is detachably installed on the edge 11 by a clamp 8.

[0026] The housing 1 serves as the main supporting structure, forming an internal airflow channel. The top and bottom openings allow air to be drawn in from the top and filtered at the bottom before being output. The filter 7 ensures the cleanliness of the output airflow. The control fan 6 is used to generate negative pressure airflow, drawing air into the housing 1 from the top vent 3 and driving laminar flow air delivery. The protective cover 2 covers the top of the housing 1 to prevent foreign objects from entering the control fan 6. The edge 11 is fixed by the connecting rib 12, forming a gap 14 for installing the pressure code 8 and fixing the filter 7.

[0027] The protective cover 2 has multiple ventilation openings 3, which are evenly distributed on the protective cover 2.

[0028] The uniform distribution of ventilation openings ensures consistent airflow.

[0029] Both ends of the housing 1 are provided with handles 4, and a rotary switch 5 for controlling the operation of the fan 6 is provided on one side of any handle 4 on the housing 1.

[0030] The handle 4 facilitates the handling and installation of the housing 1, and the rotary switch 5 controls the start and stop of the fan 6, making the operation more intuitive.

[0031] The pressure code 8 includes a fixing part 81 and a supporting part 82. The fixing part 81 and the supporting part 82 are integrally formed, and a step 85 is formed between the fixing part 81 and the supporting part 82. A limit slide rail 83 is provided on one end face of the fixing part 81, and a box fitting part 84 is provided on the other end face.

[0032] The box body fitting part 84 is a smooth plane, and the box body fitting part 84 is close to the inner wall of the box body 1. The height of the box body fitting part 84 is less than the height of the support part 82.

[0033] The thickness of the fixing part 81 is less than the gap value of the gap 14;

[0034] The fixing part 81 is fitted into the limiting groove 13 via the limiting slide rail 83 to fix the position, while the box body fitting part 84 contacts the inner wall of the box body 1 to ensure stability, and the step 85 is used to support the edge of the filter 7.

[0035] A limiting groove 13 is provided on the side of the edge 11 near the housing 1, and the limiting groove 13 matches the limiting slide rail 83;

[0036] The limiting groove 13 cooperates with the limiting slide rail 83 of the pressing code 8 to ensure accurate positioning of the pressing code 8 and prevent displacement;

[0037] Working principle: First, connect the control fan 6 to the power supply. Turn on the knob switch 5 to power on the control fan 6. The control fan 6 will generate negative pressure, drawing air into the housing 1 through the vent 3 at the top of the housing 1. The air is then filtered by the filter 7 inside the housing 1, and the filtered air is delivered to the target area. When the filter 7 needs to be replaced, turn off the power by the knob switch 5 to stop the control fan 6. Manually apply a lifting force to the filter 7 to disengage it from the step 85 of the pressure bar 8. At this time, move the pressure bar 8 to one side of the inner wall of the housing 1 to disengage the limit slide rail 83 from the limit groove 13. Then, apply a downward pulling force to the support part 82 to remove the pressure bar 8 from the gap 14. After removing all the pressure bars 8 in the above way, the filter 7 can be removed from the bottom of the housing 1, achieving the purpose of quick disassembly and assembly.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bottom-mounted laminar flow air supply device, comprising a housing (1) and a filter (7), wherein the housing (1) is a hollow cavity structure with openings at both the top and bottom, a control fan (6) is installed at the upper opening of the housing (1), and a protective cover (2) is provided at the control fan (6), the protective cover (2) completely covering the upper opening of the housing (1), characterized in that, The lower opening of the box (1) is provided with an inwardly extending edge (11), which is connected to the inner wall of the box (1) by a connecting rib (12) and forms a gap (14) with the box (1). The filter (7) is detachably installed on the edge (11) by a pressure bar (8).

2. The bottom-disassembly type laminar flow air supply device according to claim 1, characterized in that, The protective cover (2) has multiple ventilation openings (3), which are evenly distributed on the protective cover (2).

3. The bottom-disassembly laminar flow air supply device according to claim 1, characterized in that, Both ends of the box (1) are provided with handles (4), and a rotary switch (5) for controlling the operation of the fan (6) is provided on the box (1) on one side of any of the handles (4).

4. The bottom-disassembly laminar flow air supply device according to claim 1, characterized in that, The pressure code (8) includes a fixing part (81) and a supporting part (82). The fixing part (81) and the supporting part (82) are integrally formed, and a step (85) is formed between the fixing part (81) and the supporting part (82). A limit slide rail (83) is provided on one end face of the fixing part (81), and a box fitting part (84) is provided on the other end face.

5. The bottom-disassembly type laminar flow air supply device according to claim 4, characterized in that, The box fitting part (84) is a smooth plane, and the box fitting part (84) is close to the inner wall of the box (1). The height of the box fitting part (84) is less than the height of the support part (82).

6. The bottom-disassembly type laminar flow air supply device according to claim 4, characterized in that, The thickness of the fixing part (81) is less than the gap value of the gap (14).

7. The bottom-disassembly laminar flow air supply device according to claim 1, characterized in that, The edge (11) has a limiting groove (13) on the side close to the box (1), and the limiting groove (13) matches the limiting slide rail (83).

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