Air duct structure of ceiling machine

Abstract

The utility model relates to the technical field of air purifiers, in particular to an air duct structure of a ceiling machine, which is characterized in that an outer box body is divided into an inner cavity and an outer cavity sleeved outside the inner cavity by an inner cover; an inner cover exhaust hole for communicating the outer cavity with the inner cavity is formed in the inner cover; a fan coaxial with the inner cover exhaust hole is arranged in the outer cavity; the air inlet end face of the inner cavity and the air outlet end face of the outer cavity are located on the same horizontal plane. Screen plate limiting plates for fixing the grid plate are fixed on the left side and the right side in the outer box body; the screen plate limiting plate comprises a plurality of pressing strips rotationally connected to the interior of the outer box body; a plurality of air inlet meshes are uniformly distributed in the air inlet end face, directly facing the inner cavity, of the grid plate; and a plurality of exhaust meshes are uniformly distributed on the air outlet end face, directly facing the outer cavity, of the grid plate. The utility model has the beneficial effect that the disassembly and assembly efficiency of the grid plate and the filter element is improved. And the grid plate is pressed on the surface of the pressing strip, so that the pressing strip cannot loosen on the surface of the grid plate due to the friction force.

Description

TECHNICAL FIELD

[0001] The utility model relates to air purification machine technical field, especially in a kind of ceiling machine air duct structure. BACKGROUND

[0002] Air purifier is a kind of equipment for improving surrounding air quality.It is mainly composed of shell, filter core, grid and fan;Shell makes inside form a closed passage, and fan mainly forms a negative pressure inside passage, and external air is sucked in and discharged, so that air inlet needs to pass through grid and filter core in turn and then re-discharge outside.In the use of air duct structure, due to the accumulation of dust, the grid and filter core of air duct structure need to be cleaned regularly.But in the existing air duct structure, the filter core and grid are not convenient to disassemble.

[0003] Therefore, it is necessary to further innovate the existing ceiling air purifier air duct structure. INVENTION CONTENTS

[0004] The utility model discloses a kind of ceiling machine air duct structure, to the defects and deficiencies of prior art, provide a kind of ceiling machine air duct structure.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] The ceiling machine air duct structure includes grid plate, outer box body with one end face being open and inner cover fixed in outer box body;The inner cover separates outer box body into inner cavity and outer cavity sleeved on the outside of inner cavity;The inner cover is provided with inner cover exhaust hole for connecting outer cavity with inner cavity;One end of outer cavity is connected with one end of inner cavity through inner cover exhaust hole;The other end of outer cavity and the other end of inner cavity are both arranged towards the opening of outer box body;

[0007] The inside of outer cavity is provided with fan coaxially arranged with inner cover exhaust hole;The air inlet end face of inner cavity and the air outlet end face of outer cavity are both on the same horizontal plane;The inside of outer box body is fixed with grid plate fixing grid plate limiting plate on both sides;The grid plate limiting plate includes a plurality of pressing strips rotatably connected in the inside of outer box body;The grid plate is uniformly provided with a plurality of air inlet mesh holes on the air inlet end face opposite to inner cavity;The grid plate is uniformly provided with a plurality of exhaust mesh holes on the air outlet end face opposite to outer cavity.

[0008] Further, the inside of outer cavity is provided with a plurality of block guide plates;The guide plates are uniformly distributed along the circumferential direction of fan;The surface of guide plate opposite to the air outlet direction of fan is provided with arc surface;

[0009] The gap formed by the circular arc surface and the fan in the outer cavity is a side flow channel; the width of the side flow channel gradually increases along the wind direction of the air outlet; and the end of the side flow channel is provided with an air exhaust cavity facing the air exhaust mesh.

[0010] Further, the inside of the air exhaust cavity is provided with a side baffle; the inside of the side baffle and the inner side wall of the outer box body are both provided with sound insulation foam.

[0011] Further, the bottom end of the mesh plate limiting plate is provided with a support strip; one end surface of the mesh plate abuts against the support strip; and the other end surface of the mesh plate abuts against the pressing strip.

[0012] Further, one end of the pressing strip is rotationally connected to the support strip; the other end of the pressing strip is provided with a handle; the handle is arranged on the surface of the pressing strip away from the mesh plate; and the pressing strip and the handle are integrally formed.

[0013] Further, the outer box body is composed of a U-shaped bottom cover and two side sealing plates; and the two side sealing plates are respectively sealed at the two ends of the U-shaped bottom cover.

[0014] After the above structure is adopted, the fan is a fan with turbine blades, can generate negative pressure in the inner cavity, and has no substantial difference from the prior art, so it will not be described in detail. The inner cavity is provided with a filter core; the external air enters the inner cavity through the air inlet mesh of the mesh plate, is filtered by the filter core, and enters the outer cavity through the exhaust hole of the inner cover, and is discharged through the air exhaust mesh at the air outlet end surface position of the outer cavity; the pressing strip is rotated to extend to the position opposite to the mesh plate, can press the edge of the mesh plate against the outer box body; the pressing strip is rotated to be dislocated from the mesh plate, so that the mesh plate and the filter core can be taken out, and the dismounting efficiency of the mesh plate and the filter core is improved. The mesh plate is pressed against the surface of the pressing strip, and the friction force makes the pressing strip not loose on the surface of the mesh plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a perspective view of the utility model;

[0016] Fig. 2 is a front view of the utility model;

[0017] Fig. 3 is a top view of the utility model;

[0018] Fig. 4 is an explosion view of the utility model;

[0019] Fig. 5 is an explosion view of the outer box body and the mesh plate;

[0020] Fig. 6 is a sectional view of the mesh plate limiting plate;

[0021] Fig. 7 is a perspective view of the grid plate limiting plate;

[0022] Reference signs:

[0023] 1, U-shaped bottom cover; 2, side sealing plate; 3, frame; 4, grid plate; 401, air inlet mesh;

[0024] 402, air outlet mesh; 5, inner cover; 501, inner cover air outlet; 6, fan; 7, side baffle;

[0025] 8, guide plate; 801, circular arc surface; 9, grid plate limiting plate; 901, support strip; 902, pressing strip;

[0026] 902a, handle; A, inner cavity; B, side flow channel; B1, air outlet cavity; C, soundproof foam. DETAILED DESCRIPTION

[0027] The utility model will be further described in connection with the drawings.

[0028] As Figs. 1 to 7 shown, the utility model discloses a ceiling machine air duct structure, it includes grid plate 4, one end face is open -mouthed outer box and fixed in the inner cover 5 of outer box body, the inner cover 5 will in outer box body divide into inner cavity A and the outer cavity that is sleeved in the outer cavity A outside inner cavity A, the inner cover 5 is provided with the inner cover air outlet 501 for the outer cavity with inner cavity A is connected, the outer cavity one end is through the inner cover air outlet 501 with inner cavity A one end is connected, and the outer cavity other end and inner cavity A other end all are towards the open of outer box body setting;

[0029] The inside of the outer cavity is provided with the fan 6 that is coaxial with the inner cover air outlet 501, the air inlet end surface of the inner cavity A and the air outlet end surface of the outer cavity are all on the same horizontal plane, the left and right sides in the inside of the outer box body are all fixed with the grid plate 4 fixed grid plate limiting plate 9 of the outer box body, the grid plate limiting plate 9 includes the multiple pressing strips 902 that are rotatably connected in the inside of outer box body, the grid plate 4 is evenly distributed with multiple air inlet mesh 401 on the air inlet end surface opposite inner cavity A, the grid plate 4 is evenly distributed with multiple air outlet mesh 402 on the air outlet end surface opposite the outer cavity;

[0030] The inner cover 5 is provided with sealing pad and is used for isolating air inlet mesh 401 with air outlet mesh 402;

[0031] The open end surface of the outer box body is fixed with frame 3, and frame 3 is used for the decoration of outer box body in addition to being able to cover and position the grid plate 4;

[0032] The fan 6 is a fan with turbine fan blades, which can generate negative pressure inside the outer cavity, and has no substantial difference from the prior art, so it is not described in detail. The inner cavity A is internally provided with a filter element; air from the outside enters the inner cavity A through the air inlet mesh hole 401 of the grid plate 4, is filtered by the filter element, and enters the outer cavity from the inner cover exhaust hole 501, and is discharged through the exhaust mesh hole 402 at the air outlet end surface position of the outer cavity; the pressing strip 902 is extended to the position opposite to the grid plate 4 after being rotated, and can press the edge of the grid plate 4 tightly on the outer box body; rotating the pressing strip 902 can dislocate the pressing strip 902 and the grid plate 4, so that the grid plate 4 and the filter element can be taken out, thereby improving the disassembly efficiency of the grid plate 4 and the filter element. The grid plate 4 is pressed tightly on the surface of the pressing strip 902, and the friction force makes the pressing strip 902 not loose on the surface of the grid plate 4.

[0033] As a preferred mode of the utility model, the inner part of the outer cavity is provided with a plurality of block guide plates 8; the guide plates 8 are evenly distributed along the circumferential direction of the fan 6; the surface of the guide plate 8 opposite to the air outlet direction of the fan 6 is provided as a circular arc surface 801;

[0034] The circular arc surface 801 and the gap formed by the fan 6 in the outer cavity form a side flow channel B; the width of the side flow channel B gradually increases along the air direction of the air outlet; the end of the side flow channel B is provided with an exhaust cavity B1 facing the exhaust mesh hole 402;

[0035] The number of the block guide plates 8 is two, three or four, and the number of the area provided with the exhaust mesh hole 402 on the grid plate 4 is also related to the number of the block guide plates 8; after the airflow enters the fan 6 from the inner cavity A, it is guided by the plurality of circumferentially distributed guide plates 8, and is separated into a plurality of airflows which respectively enter the corresponding exhaust cavities B1 and are discharged from the exhaust mesh hole 401; after the airflow comes out of the fan 6, it is guided to flow by the circular arc surface 801, which can reduce the wind resistance and noise.

[0036] As a preferred mode of the utility model, the inner part of the exhaust cavity B1 is provided with a side baffle 7; the inner part of the guide plate 8 and the inner side wall of the outer box body are both provided with soundproof foam C; the soundproof foam C can further reduce the noise generated during air outlet.

[0037] As a preferred mode of the utility model, the bottom end of the grid plate limiting plate 9 is provided with a supporting strip 901; one end surface of the grid plate 4 abuts against the supporting strip 901; one end surface of the grid plate 4 abuts against the pressing strip 902; the grid plate 4 is limited by the supporting strips 901 on both sides, and then the grid plate 4 is pressed tightly on the supporting strip 901 by the pressing strip 902.

[0038] As a preferred mode of the utility model, one end of the pressing strip 902 is rotatably connected to the supporting strip 901; the other end of the pressing strip 902 is provided with a handle 902a; the handle 902a is arranged on the surface of the pressing strip 902 away from the grid plate 4; the pressing strip 902 and the handle 902a are integrally formed; the pressing strip 902 is rotatably connected to the mesh plate limiting plate 9 through a pivot, and the handle 902a is used as a starting position, so that the hand of a person can conveniently rotate the pressing strip 902.

[0039] As a preferred mode of the utility model, the outer box body is composed of a U-shaped bottom cover 1 and two side sealing plates 2; the two side sealing plates 2 are respectively sealed at the two ends of the U-shaped bottom cover 1; the U-shaped bottom cover 1 is spliced with the U-shaped bottom cover 1 formed by bending and the two side sealing plates 2 formed by cutting, and the forming is simpler.

[0040] The above is only a preferred embodiment of the utility model, so equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application range are included in the utility model patent application range.

Claims

1. A ceiling-mounted air duct structure, characterized in that: It includes a mesh plate (4), an outer box with an open end face, and an inner cover (5) fixed inside the outer box; the inner cover (5) divides the outer box into an inner cavity (A) and an outer cavity that is fitted outside the inner cavity (A); the inner cover (5) is provided with an inner cover exhaust hole (501) for connecting the outer cavity and the inner cavity (A); one end of the outer cavity is connected to one end of the inner cavity (A) through the inner cover exhaust hole (501); the other end of the outer cavity and the other end of the inner cavity (A) are both set towards the opening of the outer box; The outer cavity is equipped with a fan (6) coaxially arranged with the inner cover exhaust port (501); the air inlet end face of the inner cavity (A) and the air outlet end face of the outer cavity are both on the same horizontal plane; the left and right sides of the inner box are fixed with mesh plate limiting plates (9) for fixing the mesh plate (4); the mesh plate limiting plate (9) includes multiple pressure strips (902) rotatably connected to the inner box; the mesh plate (4) has multiple air inlet mesh holes (401) evenly distributed on the air inlet end face facing the inner cavity (A); the mesh plate (4) has multiple exhaust mesh holes (402) evenly distributed on the air outlet end face facing the outer cavity.

2. The ceiling-mounted air duct structure according to claim 1, characterized in that: The outer cavity is provided with a plurality of guide plates (8); the guide plates (8) are evenly distributed along the circumference of the fan (6); the surface of the guide plate (8) facing the air outlet direction of the fan (6) is provided with an arc surface (801). The gap formed between the arc surface (801) and the fan (6) in the outer cavity is a side flow channel (B); the width of the side flow channel (B) gradually increases with the direction of the airflow; the end of the side flow channel (B) is provided with an exhaust cavity (B1) facing the exhaust mesh (402).

3. The ceiling-mounted air duct structure according to claim 2, characterized in that: The exhaust chamber (B1) is provided with a side baffle (7); sound insulation foam (C) is provided between the side baffle (7) and the inner wall of the outer casing and inside the guide plate (8).

4. The ceiling-mounted air duct structure according to claim 1, characterized in that: The bottom end of the mesh plate limiting plate (9) is provided with a support strip (901); one end face of the mesh plate (4) is pressed against the support strip (901); the other end face of the mesh plate (4) is pressed against the pressure strip (902).

5. The ceiling-mounted air duct structure according to claim 1, characterized in that: One end of the pressure strip (902) is rotatably connected to the support strip (901); the other end of the pressure strip (902) is provided with a handle (902a); the handle (902a) is provided on the surface of the pressure strip (902) away from the grid plate (4); the pressure strip (902) and the handle (902a) are integrally formed.

6. The ceiling-mounted air duct structure according to claim 1, characterized in that: The outer casing consists of a U-shaped bottom cover (1) and two side sealing plates (2); the two side sealing plates (2) are respectively sealed at both ends of the U-shaped bottom cover (1).

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