CN210889499U - Screen cover of axial flow fan - Google Patents
Screen cover of axial flow fan Download PDFInfo
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- CN210889499U CN210889499U CN201921569365.0U CN201921569365U CN210889499U CN 210889499 U CN210889499 U CN 210889499U CN 201921569365 U CN201921569365 U CN 201921569365U CN 210889499 U CN210889499 U CN 210889499U
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- mesh enclosure
- shell
- fan
- connecting strips
- mounting holes
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Abstract
The utility model relates to an axial fan screen panel, include: the screen cover base is of a symmetrical closed shell structure and is divided into a left shell and a right shell, the left shell and the right shell are provided with the same number of mounting holes, and the mounting holes in the left shell and the mounting holes in the right shell are symmetrically arranged along the shell symmetry axis; one end of each connecting strip penetrates through the mounting hole in the left shell, and the other end of each connecting strip penetrates through the corresponding mounting hole in the right shell; and the blocking grids correspond to the connecting strips one to one and are fixedly connected with the connecting strips, the blocking grids naturally hang down to cover gaps between the adjacent connecting strips in a windless state, and the shapes of the blocking grids are adapted to the gaps between the adjacent connecting strips. When the fan normally operates, the blocking grid piece is automatically opened under the action of wind power; when the fan stops running, the blocking grid automatically falls back under the action of gravity, the mesh enclosure is closed, and external dust, impurities and moisture are blocked from invading into the air conditioning unit.
Description
Technical Field
The utility model relates to a ventilation equipment technical field especially relates to an axial fan screen panel.
Background
The axial flow fan is common ventilation equipment in people's life, can be used to the ventilation of places such as ordinary mill, warehouse, office, generally include the screen panel in the axial flow fan. The mesh enclosure of the existing axial flow fan is formed by coiling steel wires of coil ribs one circle by one circle, and a certain gap is reserved between every two circles of coil ribs to meet the smooth air outlet of the fan. For example, when the axial flow fan stops running, external dust, impurities and water vapor can enter the air conditioning unit through the gap when the axial flow fan is installed in the air conditioning unit, so that internal unit components are dirty, deposited with dust and accumulated water, the overall performance of the air conditioner is affected, and even the whole air conditioning unit is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve among the prior art when the fan stopped transport, external dirt, debris, the inside dirty problem of the inside fan that causes of fan of vapor intrusion easily, the utility model provides an axial fan screen panel.
The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides an axial fan screen panel, installs on axial fan guide duct, includes: the screen cover base is of a symmetrical closed shell structure and is divided into a left shell and a right shell, the left shell and the right shell are provided with the same number of mounting holes, and the mounting holes in the left shell and the mounting holes in the right shell are symmetrically arranged along the shell symmetry axis; one end of each connecting strip penetrates through the mounting hole in the left shell, and the other end of each connecting strip penetrates through the corresponding mounting hole in the right shell; and the blocking grids correspond to the connecting strips one to one and are fixedly connected with the connecting strips, the blocking grids naturally hang down to cover gaps between the adjacent connecting strips in a windless state, and the shapes of the blocking grids are adapted to the gaps between the adjacent connecting strips.
Further, the mesh enclosure base is a circular ring-shaped closed shell.
Furthermore, the upper edge of the mesh enclosure base is provided with a downward outward folded edge, the lower edge of the mesh enclosure base is provided with an upward outward folded edge, and the part of the connecting strip extending out of the mesh enclosure base is smaller than the width of the outward folded edge.
Furthermore, the part of the connecting strip extending out of the mesh enclosure base is fixedly connected with the mesh enclosure base through a fixing piece.
Furthermore, the part of the connecting strip extending out of the mesh enclosure base is bent to form an end part larger than the mounting hole.
Furthermore, the blocking grid sheet is flat sheet-shaped, one side of the blocking grid sheet is coiled into a hollow shape, and the connecting strip penetrates through the hollow part of the blocking grid sheet.
Further, the intervals between the adjacent connecting strips are consistent.
Furthermore, the blocking grid sheet is thick in the middle and thin in two sides, a connecting hole is formed in the middle of the blocking grid sheet, the connecting strips penetrate through the connecting hole to be connected with the blocking grid sheet, the width of the blocking grid sheet is half of the distance between the adjacent left connecting strip and the right connecting strip, and the length of the blocking grid sheet is matched with the distance between the two mounting holes corresponding to the connecting strips.
Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses to not enough among the prior art, provide an axial fan screen panel with take switching function, during fan normal operating, the separation bars piece is opened with the automatic of the effect of wind-force, satisfies the transmission of the amount of wind during fan normal operating. When the fan stops running, the blocking grid automatically falls back under the action of gravity, the mesh enclosure is closed, and external dust, impurities and moisture are blocked from invading into the air conditioning unit.
Drawings
FIG. 1 is a schematic view of an axial fan with a mesh enclosure;
FIG. 2 is an exploded view of the mesh enclosure of FIG. 1;
FIG. 3 is a schematic view of the mesh enclosure when the axial flow fan of FIG. 1 is on;
fig. 4 is a schematic view of the mesh enclosure when the axial flow fan of fig. 1 is off.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
an axial flow fan, as shown in fig. 1, comprises a bracket 5, an air duct 4, a motor 6, a fan blade 3 and a mesh enclosure 1. The support 5 is positioned on one side of the motor 6 and fixedly connected with the motor 6, and the periphery of the support 5 is fixed on the air duct 4 of the axial flow fan. The fan blade 3 is connected with the motor 6 and is positioned at the other side of the motor 6. The mesh enclosure 1 is arranged on the outer side of the fan blade 3 and fixedly connected with the fan air duct 4, and the motor 6 and the fan blade 3 are positioned in a space enclosed by the air duct 4 and the mesh enclosure 1. The mesh enclosure 1 is fixedly connected with the edge of the air duct 4 of the axial flow fan through a bolt component 2. As shown in fig. 2, the mesh enclosure 1 includes: mesh enclosure base D, a plurality of connecting strips C and a plurality of barrier grids B. The screen panel base D is symmetrical formula closed shell structure, divide into left casing and right casing, be provided with the mounting hole of same quantity on left casing and the right casing to the mounting hole on the left casing and the mounting hole on the right casing are followed the setting of casing symmetry axis symmetry, and mounting hole on the left casing is passed to connecting strip C one end, and the connecting strip C other end passes the mounting hole that corresponds on the right casing. When the fan air duct 4 is of a circular structure, the mesh enclosure base D is also of a circular ring-shaped closed shell structure, an even number of mounting holes are formed in one circle of the mesh enclosure base D, and the connecting strip C is mounted between the two opposite mounting holes to form a row of parallel mounting strips.
The upper edge of the mesh enclosure base D is provided with a downward outward folded edge, the lower edge of the mesh enclosure base D is provided with an upward outward folded edge, and the part of the connecting strip C extending out of the mesh enclosure base D is smaller than the width of the outward folded edge. Therefore, the part of the connecting strip C extending out of the mesh enclosure base D is blocked between the upper outer folding edge and the lower outer folding edge, so that the mesh enclosure base D is tidy and attractive on one hand, and on the other hand, other objects are prevented from being scratched.
The part of the connecting strip C extending out of the mesh enclosure base D is fixedly connected with the mesh enclosure base D through the fixing piece, the connecting strip C can be fixed on the mesh enclosure base D through the clamping ring, the part of the connecting strip C extending out of the mesh enclosure base D can also be bent, and the connecting strip C is larger than the end portion of the mounting hole, so that the connecting strip C is fixedly connected with the mesh enclosure base D.
The blocking grid pieces B correspond to the connecting strips C one by one and are fixedly connected with the connecting strips C.
The connection mode of the barrier grid B and the connection strip C may include two types: the first method comprises the following steps: the separation grid sheet B is flat and is coiled into a hollow shape on one side, the connecting strips C penetrate through the hollow part of the separation grid sheet B, and the shape of the separation grid sheet B is matched with the gaps between the adjacent connecting strips C. And in a windless state, the blocking grid sheet B naturally hangs down under the action of gravity to cover the gap between the adjacent connecting strips C. And the second method comprises the following steps: the interval between the adjacent connecting strips C is consistent, the blocking grid piece B is thick in the middle along the axial direction, the two sides of the blocking grid piece B are thin, a connecting hole is formed in the middle of the blocking grid piece B, the connecting hole is at least larger than 1.2 times of the diameter of the connecting strip C, the connecting strip C penetrates through the connecting hole to be connected with the blocking grid piece B, the width of the blocking grid piece B is half of the distance between the adjacent left and right connecting strips C, and the length of the blocking grid piece B is adapted to the distance between the two mounting holes corresponding to the connecting strip C. When the mesh enclosure 1 is connected to the fan air duct 4, the connecting strip C is arranged in the horizontal direction of the ground, and then the mesh enclosure 1 is installed on the fan air duct 4. As shown in fig. 3 and 4, when the axial flow fan operates, the blocking grid B is automatically opened by the wind force due to the action of the wind force blowing out outwards, so that the transmission of the wind volume during the normal operation of the fan is satisfied. When the fan stops running, the blocking grid piece B automatically falls back under the action of gravity, the mesh enclosure 1 is closed, and external dust, impurities and moisture are blocked from invading into the air conditioning unit.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides an axial fan screen panel installs on axial fan guide duct, its characterized in that includes:
the screen cover base is of a symmetrical closed shell structure and is divided into a left shell and a right shell, the left shell and the right shell are provided with the same number of mounting holes, and the mounting holes in the left shell and the mounting holes in the right shell are symmetrically arranged along the shell symmetry axis;
one end of each connecting strip penetrates through the mounting hole in the left shell, and the other end of each connecting strip penetrates through the corresponding mounting hole in the right shell;
and the blocking grids correspond to the connecting strips one to one and are fixedly connected with the connecting strips, the blocking grids naturally hang down to cover gaps between the adjacent connecting strips in a windless state, and the shapes of the blocking grids are adapted to the gaps between the adjacent connecting strips.
2. The axial fan mesh enclosure of claim 1, wherein the mesh enclosure base is a circular ring enclosure housing.
3. The axial fan mesh enclosure of claim 2, wherein the mesh enclosure base upper edge is provided with a downward outward fold, the mesh enclosure base lower edge is provided with an upward outward fold, and the portion of the connecting strip extending beyond the mesh enclosure base is smaller than the width of the outward fold.
4. The mesh enclosure of an axial flow fan as claimed in claim 3, wherein the portion of the connecting strip extending beyond the mesh enclosure base is fixedly connected to the mesh enclosure base by a fixing member.
5. The axial flow fan screen of claim 3, wherein the portion of the connecting bar extending beyond the screen base is bent to form an end portion larger than the mounting hole.
6. The mesh enclosure of an axial flow fan as claimed in claim 1, wherein the barrier ribs are flat and have a hollow side, and the connecting strips are inserted into the hollow portions of the barrier ribs.
7. The axial fan guard of claim 1, wherein the spacing between adjacent tie bars is uniform.
8. The mesh enclosure of the axial flow fan as claimed in claim 7, wherein the barrier ribs are thick at the middle and thin at the two sides, the barrier ribs have a connecting hole in the middle, the connecting bar passes through the connecting hole and is connected with the barrier ribs, the width of the barrier ribs is half of the distance between the adjacent left and right connecting bars, and the length of the barrier ribs is adapted to the distance between the two mounting holes corresponding to the connecting bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569365.0U CN210889499U (en) | 2019-09-20 | 2019-09-20 | Screen cover of axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569365.0U CN210889499U (en) | 2019-09-20 | 2019-09-20 | Screen cover of axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210889499U true CN210889499U (en) | 2020-06-30 |
Family
ID=71336010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921569365.0U Active CN210889499U (en) | 2019-09-20 | 2019-09-20 | Screen cover of axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210889499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352580A (en) * | 2022-01-20 | 2022-04-15 | 莫艺建筑科技有限公司 | Industrial large fan capable of preventing sundries from entering fan blades and foreign matter preventing method |
-
2019
- 2019-09-20 CN CN201921569365.0U patent/CN210889499U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352580A (en) * | 2022-01-20 | 2022-04-15 | 莫艺建筑科技有限公司 | Industrial large fan capable of preventing sundries from entering fan blades and foreign matter preventing method |
| CN114352580B (en) * | 2022-01-20 | 2023-11-21 | 莫艺建筑科技有限公司 | Industrial large fan capable of preventing sundries from entering fan blades and foreign matter preventing method |
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