Double-air-duct system

Abstract

The double-air-duct system comprises a shell, a first air guide structure and a second air guide structure are fixedly arranged in the middle of the interior of the shell, a first air wheel is rotationally arranged in the first air guide structure, a second air wheel is rotationally arranged in the second air guide structure, and the type of the second air wheel is different from that of the first air wheel. According to the double-air-duct system, the first air guide structure and the second air guide structure are arranged in the middle of the interior of the shell, the first air wheel and the second air wheel are rotationally arranged in the first air guide structure and the second air guide structure respectively, the two air wheels can work at the same time, and the air circulation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air purifiers, and more specifically, to a double air duct system. Background Art

[0002] With the increasing number of people living alone and the deepening of social pressure, people are increasingly in need of companionship and spiritual comfort, so the demand for pets is growing. As we all know, cats and dogs are the most common pets in daily life, but they also shed the most hair. Pet hair has harm to the human body that cannot be ignored, such as irritation and allergic reactions to the respiratory tract, eyes, and skin, as well as potential risks of microbial transmission. Therefore, for pet air purifiers, it is crucial to fully absorb pet hair in the environment and automatically clean the hair on the collection filter.

[0003] Patent document CN220852485U discloses an air purifier, including a shell, two opposite side walls of which are each provided with a plurality of air inlet holes, an upper end of the shell forming an air outlet, an inner side of the air outlet being provided with a grille assembly, the grille assembly comprising a support frame and a grille plate, the grille plate being arranged on the inner side of the support frame and fixed to the support frame, the support frame being arranged on the inner side of the air outlet; an annular supporting edge is arranged on the outer wall of the upper end of the support frame, an annular step is arranged on the inner wall of the upper end of the shell, the annular supporting edge is embedded in the annular step and abuts against the bottom of the annular step; a plurality of convex edges spaced apart in a circumferential direction are arranged on the outer side wall of the support frame, each convex edge is provided with a plurality of clamping holes spaced apart from top to bottom, a clamping block corresponding to each clamping hole is arranged on the inner wall of the shell, and each clamping block is engaged with the clamping hole at the corresponding position.

[0004] The layout of the air purifier in the prior art is a single-duct single-wind wheel structure, and the air circulation efficiency of the single-duct system is low.

[0005] Therefore, it is necessary to propose a dual air duct system to solve the problems existing in the prior art. Utility Model Content

[0006] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0007] To solve the above problems, the utility model provides a dual air duct system, including a shell, a first air guide structure and a second air guide structure fixedly arranged in the middle of the shell, a first wind wheel rotatably arranged in the first wind guide structure, and a second wind wheel rotatably arranged in the second wind guide structure, and the second wind wheel is of a different type from the first wind wheel.

[0008] Preferably, the first wind wheel is a forward-inclined wind wheel, and the second wind wheel is a backward-inclined wind wheel.

[0009] Preferably, a first air inlet is respectively opened on the side walls at the upper and lower ends of the shell, a first air outlet is opened on the shell at a position opposite to the first air guide structure, and a second air outlet is opened on the shell at a position opposite to the second air guide structure.

[0010] Preferably, the first air guide structure includes an upper shell and a lower shell, the upper shell is fixedly connected to the lower shell, and the lower shell is fixedly arranged on the inner wall of the shell.

[0011] Preferably, the lower shell includes a shell bottom plate and a lower side plate fixedly arranged on the upper end surface of the shell bottom plate, and the upper shell includes a shell top plate and an upper side plate fixedly arranged on the lower end surface of the shell top plate. The upper side plate and the lower side plate have the same shape and are both arc-shaped. The upper side plate, the lower side plate, the shell bottom plate and the shell top plate form an air outlet channel, and the first air outlet is opened at a position on the shell opposite to the air outlet channel.

[0012] Preferably, four second connecting columns are arranged in an array on the upper end surface of the shell bottom plate inside the lower side plate, the first motor is fixedly arranged on the second connecting columns, and the first wind wheel is fixedly arranged on the power output shaft of the first motor.

[0013] Preferably, a positioning groove is provided on the upper end surface of the lower side plate along the arc of the lower side plate, and a positioning convex strip is provided on the lower end surface of the upper side plate. The shape of the positioning convex strip is adapted to the shape of the positioning groove, and the positioning convex strip is snap-fitted into the positioning groove.

[0014] Preferably, it also includes an air filter, and two air filters are respectively fixedly arranged on one side of the first air guiding structure and the second air guiding structure away from the middle of the shell, and the air filters are respectively connected to the first air guiding structure and the second air guiding structure.

[0015] Preferably, the legs are arranged in an array on the lower end surface of the bottom plate of the shell, and a second air inlet is opened on the bottom plate.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] The double air duct system described in the utility model has a first air guiding structure and a second air guiding structure arranged in the middle of the shell, and a first wind wheel and a second wind wheel are rotatably arranged in the first wind guiding structure and the second wind guiding structure respectively, and the two wind wheels can work simultaneously to improve the efficiency of air circulation.

[0018] The dual air duct system described in the present invention and other advantages, objectives and features of the present invention will be partially reflected through the following description, and will also be partially understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a structural schematic diagram of the dual air duct system disclosed in the utility model;

[0021] Figure 2 It is a structural schematic diagram of the first air guide structure and the air filter disclosed in the utility model;

[0022] Figure 3 It is a structural schematic diagram of the first air guide structure disclosed in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the first wind guide structure, the first motor and the first wind wheel disclosed in the utility model;

[0024] Figure 5 It is a structural schematic diagram of the lower shell disclosed in the utility model;

[0025] Figure 6 It is a structural schematic diagram of the upper shell disclosed in the utility model;

[0026] Figure 7 It is a structural schematic diagram of the positioning groove disclosed in the utility model;

[0027] Figure 8 It is a structural schematic diagram of the positioning convex strip disclosed in the utility model;

[0028] Fig. 9 It is a structural schematic diagram of the housing disclosed in the utility model;

[0029] Fig.10 This is a schematic diagram of the structure of the bottom plate disclosed in the utility model;

[0030] Fig.11 It is a schematic diagram of the structure of the lower shell and the first wind wheel disclosed in the utility model from a top view. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0032] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0033] like Figure 1-11 As shown, a dual air duct system includes a shell 1, a first wind guide structure 2 and a second wind guide structure are fixedly arranged in the middle of the shell 1, a first wind wheel 3 is rotatably arranged in the first wind guide structure 2, and a second wind wheel 4 is rotatably arranged in the second wind guide structure, and the second wind wheel 4 is of a different type from the first wind wheel 3.

[0034] Furthermore, the first wind wheel 3 is a forward-inclined wind wheel, and the second wind wheel 4 is a backward-inclined wind wheel.

[0035] Furthermore, a first air inlet 5 is respectively opened on the side walls at the upper and lower ends of the shell 1, a first air outlet 6 is opened on the shell 1 at a position opposite to the first air guide structure 2, and a second air outlet 7 is opened on the shell 1 at a position opposite to the second air guide structure.

[0036] Furthermore, the first air guide structure 2 includes an upper shell 8 and a lower shell 9 , the upper shell 8 is fixedly connected to the lower shell 9 , and the lower shell 9 is fixedly disposed on the inner wall of the shell 1 .

[0037] Furthermore, the lower shell 9 includes a shell bottom plate 10 and a lower side plate 11 fixedly arranged on the upper end surface of the shell bottom plate 10, and the upper shell 8 includes a shell top plate 12 and an upper side plate 13 fixedly arranged on the lower end surface of the shell top plate 12. The upper side plate 13 and the lower side plate 11 have the same shape and are both arc-shaped. The upper side plate 13, the lower side plate 11, the shell bottom plate 10 and the shell top plate 12 form an air outlet channel 14, and the first air outlet 6 is opened at a position on the shell 1 opposite to the air outlet channel 14.

[0038] Furthermore, four second connecting columns 15 are arranged in an array on the upper end surface of the shell bottom plate 10 located inside the lower side plate 11 , the first motor 16 is fixedly arranged on the second connecting column 15 , and the first wind wheel 3 is fixedly arranged on the power output shaft of the first motor 16 .

[0039] Furthermore, a positioning groove 17 is provided on the upper end surface of the lower side plate 11 along the arc of the lower side plate 11, and a positioning ridge 26 is provided on the lower end surface of the upper side plate 13. The shape of the positioning ridge 26 is adapted to the shape of the positioning groove 17, and the positioning ridge 26 is snap-fitted into the positioning groove 17.

[0040] Furthermore, it also includes an air filter 18. The two air filters 18 are respectively fixedly arranged on one side of the first air guide structure 2 and the second air guide structure away from the middle of the shell 1. The air filters 18 are respectively connected to the first air guide structure 2 and the second air guide structure.

[0041] Furthermore, legs 20 are arranged in an array on the lower end surface of the bottom plate 19 of the housing 1 , and a second air inlet 21 is provided on the bottom plate 19 .

[0042] The working principle of the above technical solution is: the first wind guide structure 2 and the second wind guide structure are fixedly arranged in the middle part of the shell 1, the first wind guide structure 2 and the second wind guide structure are fixedly connected, the first wind wheel 3 is rotatably arranged in the first wind guide structure 2, and the second wind wheel 4 is rotatably arranged in the second wind guide structure, and the second wind wheel 4 is of a different type from the first wind wheel 3.

[0043] The first air guiding structure 2 includes an upper shell 8 and a lower shell 9, the upper shell 8 is fixedly connected to the lower shell 9, the lower shell 9 is fixedly arranged on the inner wall of the shell 1, the lower shell 9 is fixedly arranged with a first motor 16, the power output shaft of the first motor 16 is fixedly connected with the first wind wheel 3, a first air inlet 25 is opened on the shell top plate 12 of the upper shell 8, an air filter 18 is fixedly arranged on the upper end surface of the shell top plate 12, the air outlet hole of the air filter 18 is arranged opposite to the first air inlet hole 25, the first air inlet 5, the air filter 18, the first air guiding structure 2 and the first air outlet 6 constitute a first air duct.

[0044] The axis of the first motor 16 passes through the center of the first air inlet hole 25 .

[0045] The lower shell 9 includes a shell bottom plate 10 and a lower side plate 11 fixedly arranged on the upper end surface of the shell bottom plate 10, and the upper shell 8 includes a shell top plate 12 and an upper side plate 13 fixedly arranged on the lower end surface of the shell top plate 12. The upper side plate 13 has the same shape as the lower side plate 11 and is both arc-shaped. The shell bottom plate 10 and the shell top plate 12 are horizontally arranged, the lower side plate 11 and the shell bottom plate 10 are vertically arranged, and the upper side plate 13 and the shell top plate 12 are vertically arranged.

[0046] The upper side plate 13, the lower side plate 11, the shell bottom plate 10 and the shell top plate 12 form an air outlet channel 14. The first air outlet 6 is opened on the shell 1 at a position opposite to the air outlet channel 14. The air outlet channel 14 can be set as one or two. When two are set, they are symmetrically arranged with the central axis of the first wind wheel as the center. Two air outlet channels are set to divide the lower side plate 11 into two discontinuous arc plates.

[0047] The second air guiding structure includes a first air guiding cover 22 and a second air guiding cover 23. The first air guiding cover is fixedly arranged on the lower end surface of the shell bottom plate 10 of the lower shell 9, and can be fixed by welding or bolting. Metal materials are connected by welding, and other materials are connected by bolts. The first air guiding cover 22 is a conical disk, and the first air guiding cover protrudes downward. The second motor 24 is fixedly arranged in the recess of the upper end machine of the first air guiding cover 22. The power output shaft of the second motor 24 passes through the first air guiding cover 22 and extends to the lower part of the first air guiding cover 22 and is fixedly connected to the second wind wheel 4. The upper part of the second air guiding cover 23 is fixedly arranged at the lower part of the second wind wheel 4 and is fixedly connected to the shell 1. The lower part of the second air guiding cover 23 has a second air inlet. The air filter 18 is fixedly arranged at the lower end of the second air guiding cover 23. The air outlet of the air filter 18 is arranged opposite to the second air inlet. The first air inlet 5, the air filter 18, the second air guiding structure and the second air outlet 7 constitute a second air duct.

[0048] An annular air outlet passage is formed between the first air guide cover 22 and the second air guide cover 23 , and a second air outlet 7 is provided on the side wall of the housing 1 at a position opposite to the annular air outlet passage.

[0049] The first air outlet 6 and the second air outlet 7 are provided with air outlet grilles arranged in a rectangular array. The air outlet grilles are prior art and will not be described in detail herein.

[0050] The dual air duct system including the air filter 18 can be used as an air purifier, especially a pet air purifier, which can simultaneously process pet hair on the ground and suspended in the air, with high air purification efficiency, preventing people from inhaling pet hair and causing harm to the human body.

[0051] The second air inlet hole has the same shape as the first air inlet hole, which will not be described in detail here. Air inlet grilles are provided on both the first air inlet hole and the second air inlet hole, and the air inlet grilles include grille plates that intersect with each other along the axial and radial directions of the second air inlet hole and the first air inlet hole. The air inlet grilles are existing technology and will not be described in detail here.

[0052] The axis of the second motor passes through the center of the second air inlet hole.

[0053] The axis of the motor refers to the axis of the power output shaft of the motor.

[0054] The bottom plate 19 of the housing 1 can be detachably connected to the body of the housing 1, so as to facilitate the installation of the components in the housing 1. A support leg 20 is fixedly arranged on the lower end surface of the bottom plate 19, and four support legs 20 are provided. Second air inlets 21 are provided on the bottom plate at intervals from the support legs, and the second air inlets 21 are arranged in a plurality of arrays.

[0055] Beneficial effects of the above technical solution:

[0056] The double air duct system described in the utility model has a first air guiding structure and a second air guiding structure arranged in the middle of the shell, and a first wind wheel and a second wind wheel are rotatably arranged in the first wind guiding structure and the second wind guiding structure respectively, and the two wind wheels can work simultaneously to improve the efficiency of air circulation.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A dual air duct system, characterized in that: The invention comprises a shell (1), wherein a first wind guide structure (2) and a second wind guide structure are fixedly arranged in the middle of the shell (1), a first wind wheel (3) is rotatably arranged in the first wind guide structure (2), and a second wind wheel (4) is rotatably arranged in the second wind guide structure, and the second wind wheel (4) is of a different type from the first wind wheel (3).

2. The dual air duct system according to claim 1, characterized in that: The first wind wheel (3) is a forward-inclined wind wheel, and the second wind wheel (4) is a backward-inclined wind wheel.

3. The dual air duct system according to claim 2, characterized in that: A first air inlet (5) is respectively provided on the side walls at the upper and lower ends of the shell (1), a first air outlet (6) is provided on the shell (1) at a position opposite to the first air guide structure (2), and a second air outlet (7) is provided on the shell (1) at a position opposite to the second air guide structure.

4. The dual air duct system according to claim 3, characterized in that: The first air guide structure (2) comprises an upper shell (8) and a lower shell (9); the upper shell (8) is fixedly connected to the lower shell (9); and the lower shell (9) is fixedly arranged on the inner wall of the shell (1).

5. The dual air duct system according to claim 4, characterized in that: The lower shell (9) comprises a shell bottom plate (10) and a lower side plate (11) fixedly arranged on the upper end surface of the shell bottom plate (10); the upper shell (8) comprises a shell top plate (12) and an upper side plate (13) fixedly arranged on the lower end surface of the shell top plate (12); the upper side plate (13) and the lower side plate (11) have the same shape as each other, both being arc-shaped; the upper side plate (13), the lower side plate (11), the shell bottom plate (10) and the shell top plate (12) form an air outlet channel (14); and the first air outlet (6) is provided at a position on the shell (1) opposite to the air outlet channel (14).

6. The dual air duct system according to claim 5, characterized in that: Four second connecting columns (15) are arranged in an array on the upper end surface of the housing bottom plate (10) located inside the lower side plate (11); a first motor (16) is fixedly arranged on the second connecting column (15); and a first wind wheel (3) is fixedly arranged on a power output shaft of the first motor (16).

7. The dual air duct system according to claim 6, characterized in that: A positioning groove (17) is provided on the upper end surface of the lower side plate (11) along the arc of the lower side plate (11), and a positioning convex strip (26) is provided on the lower end surface of the upper side plate (13). The shape of the positioning convex strip (26) is adapted to the shape of the positioning groove (17), and the positioning convex strip (26) is clamped in the positioning groove (17).

8. The dual air duct system according to claim 7, characterized in that: It also includes air filters (18), wherein the two air filters (18) are respectively fixedly arranged on one side of the first air guide structure (2) and the second air guide structure away from the middle of the shell (1), and the air filters (18) are respectively connected to the first air guide structure (2) and the second air guide structure.

9. The dual air duct system according to claim 1, characterized in that: Support legs (20) are arranged in an array on the lower end surface of the bottom plate (19) of the shell (1), and a second air inlet (21) is provided on the bottom plate (19).

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