CN215292988U - Negative-pressure fan capable of preventing water and removing dust - Google Patents
Negative-pressure fan capable of preventing water and removing dust Download PDFInfo
- Publication number
- CN215292988U CN215292988U CN202121774933.8U CN202121774933U CN215292988U CN 215292988 U CN215292988 U CN 215292988U CN 202121774933 U CN202121774933 U CN 202121774933U CN 215292988 U CN215292988 U CN 215292988U
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- shell
- negative
- pressure fan
- hole
- rotating ring
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- 239000000428 dust Substances 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a negative pressure fan capable of preventing water and removing dust, which comprises a negative pressure fan body, a first shell, a second shell, a filter screen, a driving mechanism and blocking blocks; the negative pressure fan body is arranged in the first shell; the second shell is detachably arranged on the first shell, and the second shell and the first shell form a closed space; the second shell is provided with a through hole corresponding to the negative pressure fan body, and a filter screen is detachably arranged at the through hole; each blocking piece can move along the radial direction of the second shell through hole under the driving of the driving mechanism, so that the opening and closing of the through hole are controlled; when the shielding blocks are mutually contacted, a circle is formed, and the through hole is closed; a cleaning component is arranged below each shielding block; the lower end face of each cleaning component is abutted against the filter screen. The utility model discloses but waterproof dust removal.
Description
Technical Field
The utility model relates to a negative-pressure air fan technical field specifically is a but negative-pressure air fan of waterproof dust removal.
Background
The negative pressure fan is a machine which naturally sucks fresh air from a gate or a window opposite to an installation site by utilizing the cooling principle of air convection and negative pressure ventilation and quickly and forcibly discharges indoor sultry gas out of the room, but when the conventional negative pressure fan is used outdoors, rainwater enters the negative pressure fan in rainy days, so that the service life of the negative pressure fan is influenced; the negative pressure fan is used for a long time, so that more dust is accumulated in the negative pressure fan, and the air conveyed by the negative pressure fan can carry a part of dust, so that the freshness of the air conveyed by the negative pressure fan is influenced. Therefore, the negative pressure fan capable of preventing water and removing dust is provided.
SUMMERY OF THE UTILITY MODEL
In view of the technical problem who exists among the background art, the utility model provides a but negative-pressure air fan of waterproof dust removal. In order to achieve the above object, the utility model provides a following technical scheme:
a negative pressure fan capable of preventing water and removing dust comprises a negative pressure fan body, a first shell, a second shell, a filter screen, a driving mechanism and blocking blocks; the negative pressure fan body is arranged in the first shell; the second shell is detachably arranged on the first shell, and the second shell and the first shell form a closed space; the second shell is provided with a through hole corresponding to the negative pressure fan body, and a filter screen is detachably arranged at the through hole; each blocking piece can move along the radial direction of the second shell through hole under the driving of the driving mechanism; when the shielding blocks are mutually contacted, a circle is formed, and the through hole is closed; a cleaning component is arranged below each shielding block; the lower end face of each cleaning component is abutted against the filter screen.
The driving mechanism comprises a rotating ring and a plurality of moving columns; a plurality of grooves are uniformly arranged on the second shell and on the outer side of the through hole along the radial direction; each movable column is connected with a corresponding stop block in a penetrating way; the rotating ring is provided with a plurality of circular arc through grooves matched with the moving column, and each circular arc through groove is distributed in a fan blade type; one end of each moving column is movably arranged in the corresponding second shell groove along the radial direction, and the other end of each moving column is respectively arranged in the corresponding rotating ring through groove; the rotating ring can be rotatably arranged on each blocking piece along the central shaft of the rotating ring; when the rotating ring rotates, each moving column can move along the corresponding groove in the radial direction, and when each moving column is positioned at the tail end of the corresponding circular-arc through groove close to the circle center, each shielding block mutually collides to form a circle.
The negative pressure fan also comprises a rack; the outer wall of the rotating ring is sleeved with a gear ring; the rack can horizontally move on the plane of the outer wall of the second shell and is meshed with the gear ring.
The cleaning assembly adopts a hairbrush.
The rack is driven by the cylinder to move on the second housing.
The negative pressure fan also comprises a controller and a raindrop sensor; and the raindrop sensor and the air cylinder are electrically connected with the controller.
The negative pressure fan also comprises a timer; the timer and the air cylinder are electrically connected with the controller.
The utility model has the advantages that:
1. the utility model is provided with the driving mechanism, so that each baffle block can move along the radial direction of the second shell through hole, thereby controlling the opening and closing of the through hole; when the shielding blocks are mutually abutted, a circle is formed to completely shield the through hole, so that the through hole is closed, and the waterproof effect can be realized when raining;
2. when each shielding block moves along the radial direction of the second shell through hole, the cleaning component below each shielding block performs reciprocating wiping on the filter screen to remove dust;
3. the cleaning assembly adopts a brush, and the brushes are uniformly distributed below the shielding blocks and used for wiping and dedusting the circular filter screen.
Drawings
Fig. 1 is a schematic structural view of the negative pressure fan of the present invention;
FIG. 2 is an installation schematic diagram of the negative pressure fan of the present invention
Fig. 3 is a schematic structural view of the negative pressure fan of the present invention in an initial state;
fig. 4 is a schematic structural view of the negative pressure fan of the present invention in a waterproof state;
FIG. 5 is a schematic structural view of the shielding block of the present invention;
in the figure, 1-a second shell, 101-a through hole, 102-a groove, 2-a rack, 3-a piston rod, 4-a cylinder, 5-a first shell, 6-a rotating ring, 601-a circular arc through groove, 7-a blocking block, 8-a moving column, 9-a driving mechanism, 10-a negative pressure motor body, 11-a brush, 12-a filter screen and 13-a gear ring.
Detailed Description
With reference to fig. 1 to 5, a waterproof and dust-removing negative pressure fan comprises a negative pressure fan body 10, a first shell 5, a second shell 1, a filter screen 12, a driving mechanism 9 and shielding blocks 7; the negative pressure fan body 10 is arranged in the first shell 5; the second shell 1 is detachably arranged on the first shell 5, and the second shell 1 and the first shell 5 form an approximately closed space; the second shell 1 is provided with a through hole 101 corresponding to the negative pressure fan body 10, and a filter screen 12 is detachably arranged at the through hole 101; each blocking piece 7 can move along the radial direction of the through hole 101 of the second shell 1 under the driving of the driving mechanism 9, so that the opening and closing of the through hole 101 are controlled; when the blocking pieces 7 are mutually abutted, a circular shape is formed, the through hole 101 is completely blocked, the through hole 101 is closed, and the waterproof effect can be achieved when raining (as shown in fig. 4); a cleaning component is arranged below each shielding block 7; the lower end faces of the cleaning components are abutted against the filter screen 12, and when the blocking blocks 7 move along the radial direction of the through hole 101 of the second shell 1, the cleaning components perform reciprocating wiping on the filter screen 12 to remove dust.
As shown in fig. 2, the driving mechanism 9 includes a rotating ring 6 and a plurality of moving posts 8; a plurality of grooves 102 are uniformly arranged on the second shell 1 and outside the through hole 101 along the radial direction; each moving column 8 is connected with the corresponding shielding block 7 in a penetrating way; a plurality of arc-shaped through grooves 601 matched with the moving column 8 are arranged on the rotating ring 6, and each arc-shaped through groove 601 is distributed in a fan blade manner; one end of each moving column 8 is movably arranged in the corresponding groove 102 of the second shell 1 along the radial direction, and the other end is respectively arranged in the corresponding circular arc through groove 601 of the rotating ring 6; the rotating ring 6 can be arranged on each baffle block 7 in a way of rotating along the central shaft of the rotating ring 6; when the rotating ring 6 rotates, each moving column 8 can radially move along the corresponding groove 102, and when each moving column 8 is located at the end of the corresponding circular-arc through groove 601 close to the center of the circle, each shielding block 7 is mutually abutted to form a circle to completely shield the through hole 101, so that the through hole 101 is closed.
The negative pressure fan also comprises a rack 2; the outer wall of the rotating ring 6 is sleeved with a gear ring 13; the rack 2 can horizontally move on the plane of the outer wall of the second shell 1 and is meshed with the gear ring 13, and when the rack 2 horizontally moves, the gear ring 13 meshed with the rack is driven to rotate, the rotating ring 6 is driven to rotate, and each blocking piece 7 moves.
As shown in fig. 5, the cleaning assembly employs a brush 11, and the brush 11 is uniformly distributed below each shielding block 7 for wiping and removing dust on the circular filter screen 12.
The rack 2 is driven by the cylinder 4 to move on the second shell 1, and the piston rod 3 of the cylinder 4 drives the rack 2 to move horizontally.
The negative pressure fan also comprises a controller and a raindrop sensor; raindrop sensor, cylinder 4 all link to each other with the controller electrical property, and when raindrop sensor detected raining, transmission signal to controller, controller control cylinder 4's piston rod 3 moved to each shelter from piece 7 and be close to each other to conflicting each other, and the end is handed in the 6 centre of a circle of rotating ring, encloses into the circular form jointly.
The negative pressure fan also comprises a timer; timer, cylinder 4 all link to each other with the controller electrical property, and when the timer detected certain time, transmission signal to controller, controller control cylinder 4's piston rod 3 removed for rack 2 is to being close to or keeping away from cylinder 4 direction horizontal migration, drives ring gear 13 clockwise or anticlockwise rotation, makes each stop dog 7 along the radial to the centre of a circle removal of recess 102 that corresponds on the second shell 1 or keep away from, realizes the dust removal of reciprocating wiping to filter screen 12.
As shown in fig. 1-5, the working principle and flow of the present invention are as follows:
in the initial state, as shown in fig. 3, the through hole 101 of the second casing 1 is opened, the negative pressure fan body 10 is operated, and the filter screen 12 filters dust.
When the timer detects a certain time, a signal is transmitted to the controller, the controller controls the piston rod 3 of the cylinder 4 to move, so that the rack 2 moves horizontally in a direction close to or away from the cylinder 4 to drive the gear ring 13 meshed with the rack to rotate, the gear ring 13 drives the rotating ring 6 to rotate around the central axis of the rotating ring, each moving column 8 is pushed to move along the circular arc through groove 601 on the rotating ring 6, the corresponding shielding block 7 is driven to move or keep away from the center of a circle along the corresponding groove 102 on the second shell 1 along the radial direction, and the brush 11 below the shielding block 7 wipes dust on the filter screen 12 in a reciprocating manner to remove dust to a certain extent (the middle state is shown in fig. 1).
When the raindrop sensor detects raining, a signal is transmitted to the controller, the piston rod 3 of the controller control cylinder 4 moves to the shielding blocks 7 to be close to each other and abut against each other, the tail end of the piston rod is intersected with the circle center of the rotating ring 6 to form a circular shape together, and the through hole 101 of the second shell 1 is completely shielded (as shown in fig. 4), so that raindrops cannot be driven into the second shell 1, and the waterproof effect is realized.
Claims (7)
1. The utility model provides a but negative-pressure air fan of water proof and dust removal, includes the negative-pressure air fan body, its characterized in that: the filter screen is characterized by also comprising a first shell, a second shell, a filter screen, a driving mechanism and stop blocks; the negative pressure fan body is arranged in the first shell; the second shell is detachably arranged on the first shell, and the second shell and the first shell form a closed space; the second shell is provided with a through hole corresponding to the negative pressure fan body, and a filter screen is detachably arranged at the through hole; each blocking piece can move along the radial direction of the second shell through hole under the driving of the driving mechanism; when the shielding blocks are mutually contacted, a circle is formed, and the through hole is closed; a cleaning component is arranged below each shielding block; the lower end face of each cleaning component is abutted against the filter screen.
2. The negative-pressure air blower capable of preventing water and dust according to claim 1, characterized in that: the driving mechanism comprises a rotating ring and a plurality of moving columns; a plurality of grooves are uniformly arranged on the second shell and on the outer side of the through hole along the radial direction; each movable column is connected with a corresponding stop block in a penetrating way; the rotating ring is provided with a plurality of circular arc through grooves matched with the moving column, and each circular arc through groove is distributed in a fan blade type; one end of each moving column is movably arranged in the corresponding second shell groove along the radial direction, and the other end of each moving column is respectively arranged in the corresponding rotating ring through groove; the rotating ring can be rotatably arranged on each blocking piece along the central shaft of the rotating ring; when the rotating ring rotates, each moving column can move along the corresponding groove in the radial direction, and when each moving column is positioned at the tail end of the corresponding circular-arc through groove close to the circle center, each shielding block mutually collides to form a circle.
3. The negative-pressure fan capable of preventing water and dust according to claim 2, characterized in that: the device also comprises a rack; the outer wall of the rotating ring is sleeved with a gear ring; the rack can horizontally move on the plane of the outer wall of the second shell and is meshed with the gear ring.
4. The negative-pressure air blower capable of preventing water and dust according to claim 1, characterized in that: the cleaning component adopts a hairbrush.
5. The negative-pressure fan capable of preventing water and dust according to claim 3, characterized in that: the rack is driven by the cylinder to move on the second housing.
6. The negative-pressure fan capable of preventing water and dust according to claim 5, characterized in that: the device also comprises a controller and a raindrop sensor; and the raindrop sensor and the air cylinder are electrically connected with the controller.
7. The negative-pressure fan capable of preventing water and dust according to claim 5, characterized in that: the device also comprises a timer; the timer and the air cylinder are electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121774933.8U CN215292988U (en) | 2021-07-30 | 2021-07-30 | Negative-pressure fan capable of preventing water and removing dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121774933.8U CN215292988U (en) | 2021-07-30 | 2021-07-30 | Negative-pressure fan capable of preventing water and removing dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215292988U true CN215292988U (en) | 2021-12-24 |
Family
ID=79525784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121774933.8U Expired - Fee Related CN215292988U (en) | 2021-07-30 | 2021-07-30 | Negative-pressure fan capable of preventing water and removing dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215292988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118130180A (en) * | 2024-05-07 | 2024-06-04 | 山西谐和源环保工程有限公司 | Air detection gas collection equipment |
-
2021
- 2021-07-30 CN CN202121774933.8U patent/CN215292988U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118130180A (en) * | 2024-05-07 | 2024-06-04 | 山西谐和源环保工程有限公司 | Air detection gas collection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211224 |