CN203223394U - Negative-pressure fan - Google Patents
Negative-pressure fan Download PDFInfo
- Publication number
- CN203223394U CN203223394U CN 201320126569 CN201320126569U CN203223394U CN 203223394 U CN203223394 U CN 203223394U CN 201320126569 CN201320126569 CN 201320126569 CN 201320126569 U CN201320126569 U CN 201320126569U CN 203223394 U CN203223394 U CN 203223394U
- Authority
- CN
- China
- Prior art keywords
- fan
- adjustable lever
- fan frame
- louvre blade
- drive motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a negative-pressure fan, which is characterized by comprising a fan framework, more than two louver blades, more than four swinging rods, two linkage rods, a drive motor assembly, an exhaust fan, an adjusting rod, a connecting rope and a twiddling supporting rod; each louver blade is installed in an air outlet of the fan framework in a rotating manner, a rotating shaft on two ends of each louver blade are respectively connected with one ends of the two swinging rods in the rotating manner, the other ends of the two swinging rods are respectively connected with the two linkage rods in the rotating manner, and a longitudinal wire through hole and a longitudinal slide hole are respectively arranged on the front side and the rear side of the fan framework; the adjusting rod is arranged in the fan framework in the rotating manner, one end of the adjusting rod stretches out of the slide hole of the fan framework, the other end of the adjusting rod is connected with one end of the connecting rope, and the other end of the connecting rope is connected with one linkage rod; and the twiddling supporting rod is arranged in the fan framework and below the adjusting rod, and the connecting rope rounds the twiddling supporting rod. The negative-pressure fan has the advantages that when the drive motor assembly is not in work, the louver blades can be easily opened by pulling downwards the adjusting rod when the negative-pressure fan stays at any height so as to realize the ventilation effect, and convenience in use and operation can be achieved.
Description
Technical field
The utility model relates to a kind of negative pressure fan.
Background technique
Existing negative pressure fan comprises fan frame, the louvre blade more than two, the fork more than four and two continuous motion stems, drive motor assembly and ventilating fans, the exhaust outlet place that is installed in fan frame that wherein said louvre blade more than two rotates, described two continuous motion stems lay respectively at the both sides of fan frame, the rotating shaft at louvre blade two ends is rotationally connected with an end of two forks respectively, and the other end of two forks is rotationally connected with two continuous motion stems respectively; Described drive motor assembly and ventilating fan are installed in the fan frame, and the drive motor assembly drives ventilating fan and rotates, thereby described ventilating fan is corresponding with louvre blade ventilating fan is blown open louvre blade.During use, the drive motor assembly drives ventilating fan and rotates, and louvre blade is blown open, reaches the effect of air draft and exhaust; But the drive motor assembly is not worked, and louvre blade can not be opened, and does not reach the effect of ventilation, uses inconvenient.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and provide a kind of and also louvre blade can be opened when the drive motor assembly is not worked, and reaches the effect of ventilation, uses and easy to operate negative pressure fan.
In order to achieve the above object, the utility model is achieved in that it is a kind of negative pressure fan, is characterized in that comprising:
Fan frame, the louvre blade more than two, the fork more than four and two continuous motion stems, the exhaust outlet place that is installed in fan frame that wherein said every louvre blade rotates, described two continuous motion stems lay respectively at the outer both sides of fan frame, the rotating shaft at louvre blade two ends is rotationally connected with an end of two forks respectively, the other end of two forks is rotationally connected with two continuous motion stems respectively, has cable-through hole and slide opening longitudinally longitudinally in the front and back of described fan frame;
Drive motor assembly and ventilating fan, described drive motor assembly and ventilating fan are installed in the fan frame, and the drive motor assembly drives ventilating fan and rotates, thereby described ventilating fan is corresponding with louvre blade ventilating fan is blown open louvre blade;
Adjustable lever and bridle line, what described adjustable lever rotated is located in the fan frame, and an end of adjustable lever stretches out outside the slide opening of fan frame, and described bridle line passes cable-through hole, the other end of adjustable lever is connected with an end of bridle line, and the other end of bridle line is connected with a continuous motion stem; With moving pole, described moving pole is located in the fan frame and is positioned at the below of adjustable lever, and described bridle line is walked around moving pole.
Be provided with below the described slide opening one when adjustable lever is downward action the time make the pit bit of adjustable lever location.
Be provided with a draught spring in described fan frame, an end of described draught spring is connected with the bottom of fan frame, and the other end of draught spring is connected with an end of adjustable lever, is provided with draw ring at the other end of adjustable lever.
Wind inlet place at described fan frame is provided with mounting bracket, and described ventilating fan is installed on the mounting bracket.
The utility model advantage compared with prior art is: when the drive motor assembly was not worked, no matter the negative pressure fan is contained in any height can be opened louvre blade easily by downward pulling adjustable lever, reaches the effect of ventilation, use and easy to operate.
Description of drawings
Fig. 1 is the stereogram of louvre blade closed condition of the present utility model;
Fig. 2 is the stereogram of louvre blade open mode of the present utility model;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the enlarged view of the local A of Fig. 3;
Fig. 5 is the plan view of Fig. 1;
Fig. 6 is the B-B sectional view of Fig. 5;
Fig. 7 is rear isometric view of the present utility model;
Fig. 8 is the enlarged view of the Local C of Fig. 7.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, among the figure from start to finish identical or similar label represent identical or similar elements or the element with identical or similar functions.Be exemplary below by the embodiment who is described with reference to the drawings, only be used for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Shown in Fig. 1 to 8, it is a kind of negative pressure fan, comprises fan frame 3, the louvre blade more than two 1, the fork more than four 7, two continuous motion stems 6, drive motor assembly 13, ventilating fan 8, adjustable lever 10 and bridle lines 2, moving pole 5;
The exhaust outlet place that is installed in fan frame 3 that wherein said every louvre blade 1 rotates, described two continuous motion stems 6 lay respectively at the outer both sides of fan frame, the rotating shaft at louvre blade 1 two ends is rotationally connected with an end of two forks 7 respectively, the other end of two forks 7 is rotationally connected with two continuous motion stems 6 respectively, has cable-through hole 31 and slide opening 32 longitudinally longitudinally in the front and back of described fan frame 3; Be provided with five louvre blades 1 and ten forks 7 in the present embodiment, also can select the quantity of louvre blade 1 and fork 7 as required, the quantity of fork 7 is times of louvre blade 1; Be respectively equipped with ten protruding structures 4 in two inboards of fan frame 3, corresponding two protruding structures 4 cooperate with the two ends of separately louvre blade 1, and louvre blade 1 is located when closing;
Described drive motor assembly 13 and ventilating fan 8 are installed in the fan frame 3, and drive motor assembly 13 drives ventilating fan 8 and rotates, thereby described ventilating fan 8 blows louvre blade 1 open with the louvre blade 1 corresponding ventilating fan 8 that makes;
What described adjustable lever 10 rotated is located in the fan frame 3, and an end of adjustable lever 10 stretches out outside the slide opening 32 of fan frame 3, in the present embodiment, this end at adjustable lever 10 also is provided with a draw ring 9, can join a stay cord on draw ring 9, stay cord is convenient for people to draw ring 9 pulled down, is convenient to operation; The length of described slide opening 32 is to guarantee that adjustable lever 10 can swing up and down; Described bridle line 2 passes cable-through hole 31, the other end of adjustable lever 10 is connected with an end of bridle line 2, the other end of bridle line 2 is connected with continuous motion stem 6, and the diameter of described cable-through hole 31 is greater than the diameter of bridle line 2, and being convenient to bridle line 2 can move around in cable-through hole 31;
Described moving pole 5 is located in the fan frame 3 and is positioned at the below of adjustable lever 10, and described bridle line 2 is walked around moving pole 5.
During work, connect power supply, drive motor assembly 13 drives ventilating fan 8 and rotates, and the wind-force that ventilating fan 8 is inhaled blows all louvre blades 1 open, reaches the effect of exhaust and ventilation; When drive motor assembly 13 was not worked, louvre blade 1 was closed under deadweight automatically.
When drive motor assembly 13 is not worked, and want all louvre blades 1 are opened this moment, spurs the stay cord on the draw ring 9 downwards, and the other end of adjustable lever 10 is perk pulling bridle line 2 up, bridle line 2 is stayed continuous motion stem 6 again and is drawn, and in the continuous motion stem 6 downward drawing process all louvre blades 1 is opened; When closeall louvre blade 1, adjustable lever 10 is up pushed away in slide opening 32, louvre blade 1 is closed under deadweight automatically.
In the present embodiment, make the pit bit 321 of adjustable lever 10 location downwards the time during action when adjustable lever 10 being provided with one below the described slide opening 32; Like this when manual unlocking louvre blade 1, the position that louvre blade 1 is stayed open.
In the present embodiment, in described fan frame 3, be provided with a draught spring 11, one end of described draught spring 11 is connected with the bottom of fan frame 3, and the other end of draught spring 11 is connected with an end of adjustable lever 10, and draught spring 11 can make adjustable lever 10 reset like this.
In the present embodiment, be provided with mounting bracket 12 at the wind inlet place of described fan frame 3, described ventilating fan 8 is installed on the mounting bracket 12.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and distortion to these embodiments under the situation that does not break away from principle of the present utility model and aim, scope of the present utility model is limited by claim and equivalent thereof.
Claims (4)
1. negative pressure fan is characterized in that comprising:
Fan frame (3), louvre blade more than two (1), fork more than four (7) and two continuous motion stems (6), the exhaust outlet place that is installed in fan frame (3) that wherein said every louvre blade (1) rotates, described two continuous motion stems (6) lay respectively at the outer both sides of fan frame, the rotating shaft at louvre blade (1) two ends is rotationally connected with an end of two forks (7) respectively, the other end of two forks (7) is rotationally connected with two continuous motion stems (6) respectively, has cable-through hole (31) and slide opening (32) longitudinally longitudinally in the front and back of described fan frame (3);
Drive motor assembly (13) and ventilating fan (8), described drive motor assembly (13) and ventilating fan (8) are installed in the fan frame (3), drive motor assembly (13) drives ventilating fan (8) and rotates, described ventilating fan (8) with louvre blade (1) thus the corresponding ventilating fan (8) that makes blows louvre blade (1) open;
Adjustable lever (10) and bridle line (2), what described adjustable lever (10) rotated is located in the fan frame (3), one end of adjustable lever (10) stretches out outside the slide opening (32) of fan frame (3), described bridle line (2) passes cable-through hole (31), the other end of adjustable lever (10) is connected with an end of bridle line (2), and the other end of bridle line (2) is connected with a continuous motion stem (6); With
Moving pole (5), described moving pole (5) are located in the fan frame (3) and are positioned at the below of adjustable lever (10), and described bridle line (2) is walked around moving pole (5).
2. negative pressure fan according to claim 1 is characterized in that being provided with in the below of described slide opening (32) one and makes the pit bit (321) of adjustable lever (10) location downwards the time during action when adjustable lever (10).
3. negative pressure fan according to claim 1, it is characterized in that in described fan frame (3), being provided with a draught spring (11), one end of described draught spring (11) is connected with the bottom of fan frame (3), the other end of draught spring (11) is connected with an end of adjustable lever (10), is provided with draw ring (9) at the other end of adjustable lever.
4. negative pressure fan according to claim 1 is characterized in that being provided with mounting bracket (12) at the wind inlet place of described fan frame (3), and described ventilating fan (8) is installed on the mounting bracket (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126569 CN203223394U (en) | 2013-03-20 | 2013-03-20 | Negative-pressure fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126569 CN203223394U (en) | 2013-03-20 | 2013-03-20 | Negative-pressure fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223394U true CN203223394U (en) | 2013-10-02 |
Family
ID=49250398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320126569 Expired - Fee Related CN203223394U (en) | 2013-03-20 | 2013-03-20 | Negative-pressure fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223394U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061334A (en) * | 2017-04-25 | 2017-08-18 | 荆门市希济太机械科技有限公司 | A kind of corner regulating air outlet device |
| CN107061365A (en) * | 2017-04-25 | 2017-08-18 | 荆门市希济太机械科技有限公司 | A kind of adjustable air outlet of corner |
-
2013
- 2013-03-20 CN CN 201320126569 patent/CN203223394U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061334A (en) * | 2017-04-25 | 2017-08-18 | 荆门市希济太机械科技有限公司 | A kind of corner regulating air outlet device |
| CN107061365A (en) * | 2017-04-25 | 2017-08-18 | 荆门市希济太机械科技有限公司 | A kind of adjustable air outlet of corner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20140320 |