CN109779927B - Centrifugal fan with adjustable spiral case - Google Patents
Centrifugal fan with adjustable spiral case Download PDFInfo
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- CN109779927B CN109779927B CN201910202262.9A CN201910202262A CN109779927B CN 109779927 B CN109779927 B CN 109779927B CN 201910202262 A CN201910202262 A CN 201910202262A CN 109779927 B CN109779927 B CN 109779927B
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Abstract
The invention discloses a centrifugal ventilator with an adjustable volute, which comprises a volute and a bottom bracket, wherein the volute is positioned on the bottom bracket, a self-lubricating supporting block is fixed in the middle of the top surface of the bottom bracket, a supporting arc-shaped groove is formed in the middle of the top surface of the self-lubricating supporting block, and the bottom surface of the volute is tightly attached to the top surface of the supporting arc-shaped groove; the outer side walls of the left side plate and the right side plate of the volute are respectively fixed with a C-shaped rotating track; two vertical support frames are respectively fixed on the top surfaces of the bottom supports on the left side and the right side of the volute, a guide plate is fixed at one end, close to the volute, of a transverse beam on the top of each vertical support frame, an adjusting screw rod is connected onto each guide plate in a threaded mode, and the inner end of each adjusting screw rod extends out of each guide plate and is fixed with a sphere. The invention can rotate the volute to shorten the distance between the air outlet of the volute and the connecting pipeline, so that the volute can be connected through the self-contained flexible pipeline, is very convenient, and ensures that the engineering task is finished in the normal construction period.
Description
The technical field is as follows:
the invention relates to the technical field of ventilation equipment, in particular to a centrifugal ventilator with an adjustable volute.
Background art:
in the existing small-sized centrifugal fan, the volute is generally fixed, when the fan is installed, in order to ensure that the air outlet of the volute corresponds to the connecting pipeline, a flexible pipeline is generally communicated at the middle part, however, the length of the flexible pipeline of the general centrifugal fan is fixed, when the distance between the interfaces of the connecting pipeline in installation cannot be connected by the flexible pipeline, namely, the distance is only several centimeters, the fan needs to be additionally purchased, and is very troublesome, particularly, when the fan needs to be installed in certain specific installation time, the fan needs to be stopped and purchased again, and is very troublesome, and the progress of engineering is greatly reduced.
The invention content is as follows:
the invention aims to provide a centrifugal fan with an adjustable volute, which can rotate the volute to shorten the distance between an air outlet of the volute and a connecting pipeline, so that the volute can be connected through a flexible pipeline, the centrifugal fan is very convenient, and the project task can be finished in a normal construction period.
The technical solution of the invention is as follows:
a centrifugal ventilator with an adjustable volute comprises the volute and a bottom bracket, wherein the volute is positioned on the bottom bracket, a self-lubricating supporting block is fixed in the middle of the top surface of the bottom bracket, a supporting arc-shaped groove is formed in the middle of the top surface of the self-lubricating supporting block, and the bottom surface of the volute is tightly attached to the top surface of the supporting arc-shaped groove;
the outer side walls of the left side plate and the right side plate of the volute are respectively fixed with a C-shaped rotating track;
two vertical support frames are respectively fixed on the top surfaces of the bottom supports on the left side and the right side of the volute, a guide plate is fixed at one end, close to the volute, of a top transverse beam of each vertical support frame, an adjusting screw rod is connected onto each guide plate in a threaded mode, the inner end of each adjusting screw rod extends out of each guide plate and is fixed with a sphere, the spheres are inserted and sleeved in the rotating rails, and the outer ends of the adjusting screw rods extend out of the guide plates and are formed with rotating heads.
And the outer end of the adjusting screw is screwed with a locking nut, and the locking nut is pressed against the outer side wall of the guide plate.
The outer side wall middle part of the rotating track is formed with an arc-shaped groove, the lower end of the inner side wall of the arc-shaped groove is formed with a concave spherical inner arc-shaped groove, the sphere is inserted in the inner arc-shaped groove, and the inner end of the adjusting screw is inserted in the arc-shaped groove.
The lower part of the vertical support frame is fixed with a lower transverse beam, a lower connecting plate is fixed on the bottom surface of one end, close to the volute, of the lower transverse beam, a lower positioning adjusting bolt is connected onto the lower connecting plate in a threaded mode, a connecting plate is fixed at the inner end of the lower positioning adjusting bolt, a friction block is fixed on the end face of the connecting plate, and the friction block is pressed on the outer side wall of the volute.
And a lower locking nut is fixed on a screw rod of the lower positioning adjusting bolt and is pressed against the outer side wall of the lower connecting plate.
The invention has the beneficial effects that: the spiral case can be rotated, so that the distance between the air outlet of the spiral case and the connecting pipeline is shortened, the spiral case can be connected through the flexible pipeline, the spiral case is very convenient, and the project task can be finished in the normal construction period.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial side view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a partial cross-sectional view of the rotating track.
The specific implementation mode is as follows:
example (b): as shown in fig. 1 to 4, the centrifugal ventilator with the adjustable volute comprises a volute 1 and a bottom bracket 2, wherein the volute 1 is arranged on the bottom bracket 2, a self-lubricating support block 3 is fixed in the middle of the top surface of the bottom bracket 2, a support arc-shaped groove 31 is formed in the middle of the top surface of the self-lubricating support block 3, and the bottom surface of the volute 1 is tightly attached to the top surface of the support arc-shaped groove 31;
the outer side walls of the left side plate and the right side plate of the volute 1 are respectively fixed with a C-shaped rotating track 4;
two vertical support frames 5 are respectively fixed on the top surfaces of the bottom supports 2 on the left side and the right side of the volute casing 1, a guide plate 52 is fixed at one end, close to the volute casing 1, of a top transverse beam 51 of each vertical support frame 5, an adjusting screw 53 is screwed on each guide plate 52, the inner end of each adjusting screw 53 extends out of each guide plate 52 and is fixed with a sphere 54, each sphere 54 is inserted into the corresponding rotating track 4, and the outer end of each adjusting screw 53 extends out of each guide plate 52 and is formed with a rotating head 55.
Further, a lock nut 56 is threadedly coupled to an outer end of the adjusting screw 53, and the lock nut 56 is pressed against an outer side wall of the guide plate 52.
Further, an arc-shaped groove 41 is formed in the middle of the outer side wall of the rotating track 4, a concave spherical inner arc-shaped groove 42 is formed at the lower end of the inner side wall of the arc-shaped groove 41, the sphere 54 is inserted in the inner arc-shaped groove 42, and the inner end of the adjusting screw 53 is inserted in the arc-shaped groove 41.
Furthermore, a lower transverse beam 57 is fixed at the lower part of the vertical support frame 5, a lower connecting plate 58 is fixed at the bottom surface of one end of the lower transverse beam 57 close to the volute 1, a lower positioning adjusting bolt 59 is screwed on the lower connecting plate 58, a connecting plate 591 is fixed at the inner end of the lower positioning adjusting bolt 59, a friction block 592 is fixed on the end surface of the connecting plate 591, and the friction block 592 is pressed against the outer side wall of the volute 1.
Further, a lower lock nut 593 is fixed on the screw of the lower positioning and adjusting bolt 59, and the lower lock nut 593 is pressed against the outer side wall of the lower connecting plate 58.
The working principle is as follows: during the use, unscrew all lower lock nut 593, and simultaneously, rotate positioning adjusting bolt 59 down, make the clutch blocks 592 not press on volute 1's lateral wall, then, can artifically rotate volute 1, make spheroid 54 remove along interior arc wall 42, make volute 1's air outlet be close to the tip of the connecting tube that needs to connect, then, can be linked together the flexible connection pipe in taking certainly that connects on volute 1's the air outlet with the connecting tube, then, adjust lower positioning adjusting bolt 59, make the clutch blocks 592 press on volute 1's lateral wall, rotatory lower lock nut 593 again, make lower lock nut 593 press on the lateral wall of lower junction plate 58, the completion is fixed, can use, and is very convenient.
Claims (5)
1. The utility model provides a centrifugal fan with adjustable spiral case, includes spiral case (1) and bottom suspension (2), and spiral case (1) is on bottom suspension (2), its characterized in that: a self-lubricating supporting block (3) is fixed in the middle of the top surface of the bottom bracket (2), a supporting arc-shaped groove (31) is formed in the middle of the top surface of the self-lubricating supporting block (3), and the bottom surface of the volute (1) is tightly attached to the top surface of the supporting arc-shaped groove (31);
the outer side walls of the left side plate and the right side plate of the volute (1) are respectively fixed with a C-shaped rotating track (4);
the top surface of the bottom support (2) on the left side and the right side of the volute (1) is respectively fixed with two vertical support frames (5), one end of a top transverse beam (51) of each vertical support frame (5) close to the volute (1) is fixed with a guide plate (52), an adjusting screw (53) is screwed on each guide plate (52), the inner end of each adjusting screw (53) extends out of each guide plate (52) and is fixed with a sphere (54), each sphere (54) is inserted and sleeved in each rotating track (4), and the outer end of each adjusting screw (53) extends out of each guide plate (52) and is formed with a rotating head (55).
2. A volute adjustable centrifugal fan according to claim 1, wherein: the outer end of the adjusting screw rod (53) is in threaded connection with a locking nut (56), and the locking nut (56) is pressed against the outer side wall of the guide plate (52).
3. A volute adjustable centrifugal fan according to claim 1, wherein: an arc-shaped groove (41) is formed in the middle of the outer side wall of the rotating track (4), a concave spherical inner arc-shaped groove (42) is formed at the lower end of the inner side wall of the arc-shaped groove (41), the ball body (54) is inserted in the inner arc-shaped groove (42), and the inner end of the adjusting screw rod (53) is inserted in the arc-shaped groove (41).
4. A volute adjustable centrifugal fan according to claim 1, wherein: the lower transverse beam (57) is fixed to the lower portion of the vertical supporting frame (5), a lower connecting plate (58) is fixed to the bottom face of one end, close to the volute (1), of the lower transverse beam (57), a lower positioning adjusting bolt (59) is screwed on the lower connecting plate (58), a connecting plate (591) is fixed to the inner end of the lower positioning adjusting bolt (59), a friction block (592) is fixed to the end face of the connecting plate (591), and the friction block (592) is pressed against the outer side wall of the volute (1).
5. A volute adjustable centrifugal fan according to claim 4, wherein: and a lower locking nut (593) is fixed on a screw rod of the lower positioning adjusting bolt (59), and the lower locking nut (593) is pressed against the outer side wall of the lower connecting plate (58).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202262.9A CN109779927B (en) | 2019-03-18 | 2019-03-18 | Centrifugal fan with adjustable spiral case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202262.9A CN109779927B (en) | 2019-03-18 | 2019-03-18 | Centrifugal fan with adjustable spiral case |
Publications (2)
| Publication Number | Publication Date |
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| CN109779927A CN109779927A (en) | 2019-05-21 |
| CN109779927B true CN109779927B (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202262.9A Active CN109779927B (en) | 2019-03-18 | 2019-03-18 | Centrifugal fan with adjustable spiral case |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360140A (en) * | 2019-08-02 | 2019-10-22 | 浙江沈力防爆机电有限公司 | A kind of push type has the spiral case blower of protection frame body |
| CN111963466B (en) * | 2020-08-28 | 2021-12-31 | 江西省子轩科技有限公司 | Centrifugal fan for air conditioning system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19649906A1 (en) * | 1996-12-02 | 1998-06-10 | Kostal Leopold Gmbh & Co Kg | Rotation angle detection sensor |
| CN104763660A (en) * | 2014-01-02 | 2015-07-08 | 太阳城(厦门)户外用品科技有限公司 | Fan rotating method and device of solar outdoor fan umbrella |
| CN205779807U (en) * | 2016-05-31 | 2016-12-07 | 深圳市联创电器实业有限公司 | Changes in temperature centrifugal blower electric fan |
| CN207746186U (en) * | 2017-12-01 | 2018-08-21 | 广州凤义机电设备有限公司 | Washing machine in a kind of five gallon bottle bucket |
-
2019
- 2019-03-18 CN CN201910202262.9A patent/CN109779927B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19649906A1 (en) * | 1996-12-02 | 1998-06-10 | Kostal Leopold Gmbh & Co Kg | Rotation angle detection sensor |
| CN104763660A (en) * | 2014-01-02 | 2015-07-08 | 太阳城(厦门)户外用品科技有限公司 | Fan rotating method and device of solar outdoor fan umbrella |
| CN205779807U (en) * | 2016-05-31 | 2016-12-07 | 深圳市联创电器实业有限公司 | Changes in temperature centrifugal blower electric fan |
| CN207746186U (en) * | 2017-12-01 | 2018-08-21 | 广州凤义机电设备有限公司 | Washing machine in a kind of five gallon bottle bucket |
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| CN109779927A (en) | 2019-05-21 |
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Effective date of registration: 20200513 Address after: 318000 phase II of pump industry cluster point, Daxi Town, Wenling City, Taizhou City, Zhejiang Province Applicant after: SAYI ELECTRICAL APPLIANCE Co.,Ltd. Address before: 518000 Guangdong Province Longhua District Dalang Street Tongsheng Community Shangyanglang New Industrial Zone 2 603-1 Applicant before: SHENZHEN CHUANGZHI JOINT TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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