CN214273984U - Centrifugal fan with variable blades - Google Patents
Centrifugal fan with variable blades Download PDFInfo
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- CN214273984U CN214273984U CN202022732224.5U CN202022732224U CN214273984U CN 214273984 U CN214273984 U CN 214273984U CN 202022732224 U CN202022732224 U CN 202022732224U CN 214273984 U CN214273984 U CN 214273984U
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Abstract
The utility model relates to the field of fans and accessories thereof, in particular to a centrifugal fan with variable blades; the centrifugal fan with the variable blades comprises a motor and is characterized by further comprising a rotating plate arranged on a rotating shaft of the motor, a locking plate arranged above the rotating plate and a plurality of blade plates arranged on the rotating plate; a plurality of fixing grooves are formed in the rotating plate and correspond to the blade plates one by one; the blade plate comprises a hinged plate fixed on the fixing groove, a first blade arranged on one side of the hinged plate and a second blade arranged on the other side of the hinged plate; the first fan blade or the second fan blade can be fixedly connected with the locking plate; through switching with the first flabellum that the locking plate is connected and the second flabellum that shows to the thickness of change centrifugal fan leaf, thereby change centrifugal fan's air output.
Description
Technical Field
The utility model relates to a fan and accessory field particularly, relate to a centrifugal fan of variable blade.
Background
The patent document of the Chinese patent CN211370822U discloses a centrifugal fan impeller and a centrifugal fan applying the impeller, wherein the centrifugal fan impeller comprises a front ring; the rear ring is arranged opposite to the front ring and is positioned behind the front ring; the blades are connected between the front ring and the rear ring, and are arranged at intervals along the circumferential direction of the front ring and the rear ring; a wheel disc comprising a mounting disc located between the front ring and the rear ring and located within the enclosed region of all the blades; at least two spokes are radially arranged by taking the mounting disc as a center, the first end of each spoke is connected with the mounting disc, and the second end of each spoke is connected with the rear ring or the blade; the spokes are sheet-shaped and form an included angle a with the axial direction of the impeller, and 0< a <90, so that two side edges of the spokes are arranged in tandem, all the spokes form a rotation direction along the circumferential direction on the whole, each spoke is used as one of the rotating arms, and the two side edges of the spokes are a front side edge and a rear side edge along the rotation direction in sequence. So that the air flow is only locally impacted by the spokes at the same time.
However, the flow rate of the blower of the above patent is not adjustable, and a blower with adjustable flow rate needs to be designed for the purpose.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a centrifugal fan of variable blade to adjust the flow of fan.
In order to achieve the above object, an embodiment of the present invention provides a centrifugal fan with variable blades, which includes a motor, and the centrifugal fan with variable blades further includes a rotating plate disposed on a rotating shaft of the motor, a locking plate disposed above the rotating plate, and a plurality of blade plates disposed on the rotating plate; a plurality of fixing grooves are formed in the rotating plate and correspond to the blade plates one by one; the blade plate comprises a hinged plate fixed on the fixing groove, a first blade arranged on one side of the hinged plate and a second blade arranged on the other side of the hinged plate; wherein the first fan blade or the second fan blade can be fixedly connected with the locking plate.
Furthermore, the centrifugal fan with the variable blades further comprises a first fixing part arranged on the short edge of one side of the fixing groove, and a second fixing part arranged on the other side of the fixing groove; the end part of the first fan blade is provided with a first inserting hole, and the first fixing part can be inserted into the first inserting hole; the end part of the second fan blade is provided with a second inserting hole, and the second fixing part can be inserted into the second inserting hole.
Further, the first fixing part and the second fixing part have the same structure; a plurality of sliding grooves are clamped on the rotating plate, the sliding grooves correspond to the fixing grooves one by one, and the sliding grooves are communicated with the fixing grooves; the first fixing part comprises a fixing rod and a return spring; one end of the reset spring is fixedly connected with the bottom of the sliding groove, and the other end of the reset spring is fixedly connected with the end part of the fixed rod.
Further, the side wall of the fixing rod is provided with a sliding wing, and the sliding wing can slide in the sliding groove.
Furthermore, the locking plate is provided with a plurality of fixing parts; a first clamping groove and a second clamping groove are formed in two sides of the fixing part; the first fan blade is abutted against the side wall of the first clamping groove; the second fan blade is abutted against the side wall of the second clamping groove.
Further, the fixing part is a notch-shaped frame; one side of the fixing part is provided with a first fixing hole, and the other side of the fixing part is provided with a second fixing hole; the locking plate is provided with a plurality of connecting holes which are communicated with the first fixing hole and the first inserting hole; the connecting hole is communicated with the second fixing hole and the second inserting hole.
Further, the centrifugal fan with the variable blades further comprises a fixing bolt; the fixing bolt is sequentially connected with the connecting hole, the first fixing hole and the first inserting hole in an inserting mode.
Compared with the prior art, the embodiment of the utility model provides a following beneficial effect has: the utility model discloses a make first flabellum or second flabellum with locking can not fixed connection, in order to change centrifugal fan's thickness, and then change centrifugal fan's play fan.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view illustrating a blade of a centrifugal fan with variable blades according to the present invention;
FIG. 2 illustrates a cross-sectional view of a variable-blade centrifugal fan of the present invention;
FIG. 3 illustrates a side view of a variable-blade centrifugal fan of the present invention;
fig. 4 shows a partial enlarged view of a of fig. 3 of a variable vane of the present invention;
fig. 5 shows a partial enlarged view of B of fig. 3 of a variable vane of the present invention;
in the figure:
1 is a rotating plate, 101 is a fixed groove, and 102 is a sliding groove;
2 is a locking plate; 201 is a connecting hole;
3 is a blade plate, 301 is a hinge plate, 302 is a first blade, 303 is a second blade, 304 is a first plug hole, and 305 is a second plug hole;
4 is a first fixing part, 401 is a fixing rod, 402 is a return spring; 403 is a sliding wing;
5 is a second fixed part;
6 is a first fixing part, 601 is a first card slot, 602 is a second card slot, 603 is a first fixing hole, and 604 is a second fixing hole;
and 7 is a fixing bolt.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Examples
As shown in fig. 1 to 5, the present invention provides a centrifugal fan with variable blades, which comprises a motor, a rotating plate 1 disposed on a rotating shaft of the motor, a locking plate 2 disposed above the rotating plate 1, and a plurality of blade plates 3 disposed on the rotating plate 1; a plurality of fixing grooves 101 are formed in the rotating plate 1, and the fixing grooves 101 correspond to the blade plates 3 one by one; the blade plate 3 comprises a hinge plate 301 fixed on the fixing groove 101, a first blade 302 arranged on one side of the hinge plate 301 and a second blade 303 arranged on the other side of the hinge plate 301; wherein the first blade 302 or the second blade 303 can be fixedly connected with the locking plate 2.
In some embodiments, the air output of the centrifugal fan is changed by changing the fan blades connected with the locking plate 2;
in some embodiments, the lengths of the first fan blade 302 and the second fan blade 303 are different, so as to change the air output of the fan.
In some embodiments, the fan is a centrifugal fan, and in order to prevent the blade plate 3 from falling off due to an excessively high rotation speed of the fan during operation, the hinge plate 301 is used to fix the first blade 302 and the second blade 303, so as to increase the strength of the blade plate 3.
In some embodiments, the centrifugal fan with variable blades further comprises a first fixing part 4 arranged on a short side of one side of the fixing groove 101, and a second fixing part 5 arranged on the other side; a first inserting hole 304 is formed at the end of the first fan blade 302, and the first fixing part 4 can be inserted into the first inserting hole 304; the end of the second fan blade 303 is provided with a second inserting hole 305, and the second fixing portion 5 can be inserted into the second inserting hole 305.
In some embodiments, the first fan blade 302 and the second fan blade 303 are fixed by the first fixing portion 4 and the second fixing portion 5, so that the fan can be folded for transportation when the fan is transported, and the truck can transport more fans at a time.
In some embodiments, the first fixing portion 4 and the second fixing portion 5 are identical in structure; a plurality of sliding grooves 102 are clamped on the rotating plate 1, the sliding grooves 102 correspond to the fixing grooves 101 one by one, and the sliding grooves 102 are communicated with the fixing grooves 101; the first fixing part 4 includes a fixing rod 401 and a return spring 402; one end of the return spring 402 is fixedly connected with the bottom of the sliding groove 102, and the other end is fixedly connected with the end of the fixing rod 401.
In some embodiments, the return spring 402 pushes the fixing rod 401, and the fixing rod 401 is inserted into the first insertion hole 304 to fix the first fan blade 302.
In some embodiments, the side wall of the fixing rod 401 has a sliding wing 403, and the sliding wing 403 can slide in the sliding groove 102.
In some embodiments, the first fan blade 302 can be released and locked by moving the sliding wing 403 to move the fixing rod 401.
In some embodiments, the locking plate 2 has several fixing portions thereon; a first clamping groove 601 and a second clamping groove 602 are arranged on two sides of the fixing part; the first fan blade 302 abuts against the side wall of the first slot 601; the second fan blade 303 abuts against the side wall of the second slot 602.
In some embodiments, the first fan blade 302 and the second fan blade 303 are fixed by the first locking groove 601 and the second locking groove 602, so that the fan blades are prevented from falling off the locking plate 2 when the centrifugal fan rotates at a high speed, and a safety accident is prevented.
In some embodiments, the fixing portion is a suture-shaped frame; one side of the fixing part is provided with a first fixing hole 603, and the other side is provided with a second fixing hole 604; a plurality of connecting holes 201 are formed in the locking plate 2, and the connecting holes 201 are communicated with the first fixing hole 603 and the first inserting hole 304; the connection hole 201 is communicated with the second fixing hole 604 and the second insertion hole 305.
Through the fixed part of the notch shape, fix first flabellum 302 shown with second flabellum 303 in different positions, when the system changes from second flabellum 303 to first flabellum 302, locking plate 2 rotates, first flabellum 302 winds the tip of articulated slab 301 rotates, makes first flabellum 302 be perpendicular to rotor plate 1, the side of the notch shape fixed part this moment can with the side of first flabellum 302 offsets.
In some embodiments, the variable-blade centrifugal fan further comprises a fixing bolt 7; the fixing bolt 7 is sequentially inserted into the connecting hole 201, the first fixing hole 603, and the first inserting hole 304.
In some embodiments, the fastener and the second fan blade 303 are locked by the fastening bolt 7.
To sum up, the utility model discloses a make first flabellum 302 or second flabellum 303 with locking can not fixed connection, in order to change centrifugal fan's thickness, and then change centrifugal fan's air output.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The centrifugal fan with the variable blades comprises a motor and is characterized by further comprising a rotating plate arranged on a rotating shaft of the motor, a locking plate arranged above the rotating plate and a plurality of blade plates arranged on the rotating plate;
a plurality of fixing grooves are formed in the rotating plate and correspond to the blade plates one by one;
the blade plate comprises a hinged plate fixed on the fixing groove, a first blade arranged on one side of the hinged plate and a second blade arranged on the other side of the hinged plate; wherein
The first fan blade or the second fan blade can be fixedly connected with the locking plate.
2. The variable-blade centrifugal fan according to claim 1,
the centrifugal fan with the variable blades further comprises a first fixing part arranged on the short edge of one side of the fixing groove, and a second fixing part is arranged on the other side of the fixing groove;
the end part of the first fan blade is provided with a first inserting hole, and the first fixing part can be inserted into the first inserting hole;
the end part of the second fan blade is provided with a second inserting hole, and the second fixing part can be inserted into the second inserting hole.
3. The variable-blade centrifugal fan according to claim 2,
the first fixing part and the second fixing part have the same structure;
a plurality of sliding grooves are clamped on the rotating plate, the sliding grooves correspond to the fixing grooves one by one, and the sliding grooves are communicated with the fixing grooves;
the first fixing part comprises a fixing rod and a return spring;
one end of the reset spring is fixedly connected with the bottom of the sliding groove, and the other end of the reset spring is fixedly connected with the end part of the fixed rod.
4. The variable-blade centrifugal fan according to claim 3,
the side wall of the fixing rod is provided with a sliding wing which can slide in the sliding groove.
5. The variable-blade centrifugal fan according to claim 4,
the locking plate is provided with a plurality of fixing parts;
a first clamping groove and a second clamping groove are formed in two sides of the fixing part;
the first fan blade is abutted against the side wall of the first clamping groove;
the second fan blade is abutted against the side wall of the second clamping groove.
6. The variable-blade centrifugal fan according to claim 5,
the fixing part is a notch-shaped frame;
one side of the fixing part is provided with a first fixing hole, and the other side of the fixing part is provided with a second fixing hole;
the locking plate is provided with a plurality of connecting holes which are communicated with the first fixing hole and the first inserting hole;
the connecting hole is communicated with the second fixing hole and the second inserting hole.
7. The centrifugal fan with variable blades according to claim 6,
the centrifugal fan with the variable blades further comprises a fixing bolt;
the fixing bolt is sequentially connected with the connecting hole, the first fixing hole and the first inserting hole in an inserting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022732224.5U CN214273984U (en) | 2020-11-24 | 2020-11-24 | Centrifugal fan with variable blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022732224.5U CN214273984U (en) | 2020-11-24 | 2020-11-24 | Centrifugal fan with variable blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214273984U true CN214273984U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022732224.5U Active CN214273984U (en) | 2020-11-24 | 2020-11-24 | Centrifugal fan with variable blades |
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| CN (1) | CN214273984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773278A (en) * | 2022-12-21 | 2023-03-10 | 无锡市盛禾泰业涡轮增压器有限公司 | Multistage impeller structure for turbocharger |
-
2020
- 2020-11-24 CN CN202022732224.5U patent/CN214273984U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773278A (en) * | 2022-12-21 | 2023-03-10 | 无锡市盛禾泰业涡轮增压器有限公司 | Multistage impeller structure for turbocharger |
| CN115773278B (en) * | 2022-12-21 | 2024-02-13 | 无锡市盛禾泰业涡轮增压器有限公司 | Multi-stage impeller structure for turbocharger |
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