CN215170849U - Polypropylene centrifugal fan convenient to wash and maintain - Google Patents
Polypropylene centrifugal fan convenient to wash and maintain Download PDFInfo
- Publication number
- CN215170849U CN215170849U CN202121463912.4U CN202121463912U CN215170849U CN 215170849 U CN215170849 U CN 215170849U CN 202121463912 U CN202121463912 U CN 202121463912U CN 215170849 U CN215170849 U CN 215170849U
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- impeller
- base
- motor
- centrifugal fan
- polypropylene
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- -1 Polypropylene Polymers 0.000 title claims abstract description 40
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 40
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims description 52
- 238000012423 maintenance Methods 0.000 claims description 26
- 238000004140 cleaning Methods 0.000 claims description 23
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
The utility model discloses a polypropylene centrifugal fan convenient to wash and maintain, including base, motor cabinet, spiral case, impeller, base one side is equipped with the motor cabinet, be equipped with actuating mechanism on the motor cabinet, actuating mechanism includes motor, band pulley, girdle, bearing box, pivot, motor, bearing box are all fixed in the motor cabinet top, the bearing box endotheca is equipped with the pivot, pivot one end all is equipped with the band pulley with the motor output to connect through band pulley, girdle, the pivot other end is connected with the impeller, the spiral case upper end is equipped with the air outlet, spiral case one side is equipped with the air intake, one side that the spiral case is close to the air intake is equipped with the mounting groove, be equipped with on the mounting groove and can dismantle the impeller lid of being connected with its block. The utility model discloses a polypropylene centrifugal fan convenient to wash and maintain, corrosion resistance is strong, can adapt to external environment for a long time, and impeller, bearing wash or maintain and change the convenience, maintain and overhaul the cycle weak point.
Description
Technical Field
The utility model belongs to the technical field of the ventilation blower, in particular to polypropylene centrifugal fan convenient to wash and maintain.
Background
The ventilator is a machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, and is a driven fluid machine. Ventilators are widely used for ventilation, dust extraction and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings. The ventilator is mainly classified into a centrifugal type, an axial type, a diagonal type, a cross-flow type, and the like according to the flowing direction of the gas. The centrifugal ventilator is a very typical structure in the ventilator, and the application thereof is very wide.
When the impeller rotates, the gas between the blades of the centrifugal fan is subjected to centrifugal force to obtain kinetic energy (dynamic pressure head) to be discharged from the periphery of the impeller, and the kinetic energy is guided by the volute-shaped casing to flow towards the outlet of the fan, so that negative pressure is formed at the central part of the impeller, external airflow continuously flows in and is supplemented, and the fan can discharge the gas.
The existing centrifugal ventilator is generally made of metal iron materials, so that the manufacturing cost is high, the noise is high, the corrosion resistance is poor, the centrifugal ventilator cannot adapt to the use of the external environment for a long time, and the service life is short; and the structure sets up unreasonablely, is not convenient for wash, maintain or change parts such as the inside impeller of casing, bearing, reduces centrifugal fan's work efficiency.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome not enough above, the utility model aims at providing a polypropylene centrifugal fan convenient to wash and maintain, its simple structure, corrosion resistance is strong, can adapt to external environment for a long time, and impeller, bearing maintenance or change convenience are favorable to improving centrifugal fan's work efficiency.
The technical scheme is as follows: a polypropylene centrifugal ventilator convenient for cleaning and maintenance comprises a base, a motor base, a volute and an impeller, wherein the base and the volute above the base are integrally formed, the motor base is arranged on one side of the base, a driving mechanism is arranged on the motor base and comprises a motor, a belt wheel, an annular belt, a bearing box and a rotating shaft, the motor and the bearing box are both fixed above the motor base, the rotating shaft is sleeved in the bearing box, one end of the rotating shaft is provided with the belt wheel together with the output end of the motor and is connected with the output end of the motor through the belt wheel and the annular belt, one end, far away from the belt wheel, of the rotating shaft extends into the volute and is connected with the impeller arranged in the volute, an air outlet is arranged at the upper end of the volute, one side, far away from the motor base, of the volute is provided with an air inlet, the air inlet is connected with the volute through a bolt, one side, close to the air inlet, of the volute is provided with a mounting groove, and the impeller cover is arranged on the mounting groove, the impeller cover is clamped and detachably connected with the mounting groove, and the impeller cover is quickly and conveniently detached, so that the impeller is convenient to clean, maintain or replace; and the bearing box is arranged outside the volute, so that the maintenance or replacement of the bearing is facilitated, and the working efficiency of the ventilator is improved.
Furthermore, foretell polypropylene centrifugal fan convenient to wash and maintain, base, spiral case, motor cabinet, impeller are formed by polypropylene plastic manufacturing, have improved the holistic corrosion resistance of ventilation blower, are favorable to adapting to the use of external environment for a long time, low in manufacturing cost, and corrosion resistance is strong, maintains the maintenance simply.
Further, foretell polypropylene centrifugal fan convenient to wash and maintain, motor cabinet and base integrated into one piece, the bottom surface flushes, just the motor cabinet is equipped with the bumper shock absorber with the base bottom surface, can reduce the last vibration of centrifugal fan, prolongs centrifugal fan's life.
Further, foretell polypropylene centrifugal fan convenient to wash and maintain, the annular area overcoat has the safety cover of forming by the preparation of polypropylene plastics, further improves centrifugal fan's environmental suitability, effectively guarantees motor drive, the safety cover passes through bolt and motor cabinet fixed connection.
Further, foretell polypropylene centrifugal fan convenient to wash and maintain, the mounting groove includes through-hole, ring channel and buckle groove, the through-hole just link up the spiral case with the axle center with the impeller, the impeller of being convenient for is dismantled, the mounting groove middle section is located to the ring channel, the buckle groove is located the ring channel front side and is communicated with the ring channel.
Furthermore, foretell polypropylene centrifugal fan convenient to wash and maintain, the buckle groove is equipped with a plurality ofly, and evenly distributed along the ring channel circumference.
Furthermore, according to the polypropylene centrifugal ventilator convenient to clean and maintain, the outer side of the circumference of the impeller cover is provided with the plurality of buckles, and the buckles are matched with the buckle grooves.
Furthermore, foretell polypropylene centrifugal fan convenient to wash and maintain, be equipped with in the buckle lower extreme recess rather than fixed connection's compression spring, compression spring below is equipped with the resistance piece with the laminating of ring channel bottom surface, compression spring insert resistance piece upper end recess and with resistance piece fixed connection. When the impeller cover needs to be disassembled, the impeller cover is pressed downwards, the compression spring is further compressed, the buckle is separated from the top surface of the annular groove, the impeller cover is rotated, the buckle and the resistance block are rotated to be overlapped with the buckle groove, the buckle is ejected out of the buckle groove under the elastic force action of the compression spring, the impeller cover can be taken out easily at the moment, and therefore the impeller cover is beneficial to cleaning or replacing of the impeller, and the operation is simple and convenient.
Furthermore, foretell polypropylene centrifugal fan convenient to wash and maintain, one side that the base is close to the air intake is equipped with the dust collecting groove with the spiral case inner chamber intercommunication, the dust collecting inslot is equipped with the dust collection box that can dismantle the connection, the dust collector's of dust collection box is located in the middle of the spiral case inner chamber, the dust collection box outside is equipped with the handle, and the dust collection box of being convenient for takes out. The dust collection box can collect larger dust particles screened off by the centrifugal ventilator in the using process, the dust collection box is taken out from the inner cavity of the volute, the dust on the dust collection box can be removed, the cleanliness of the inner cavity of the volute is improved, and the cleaning frequency of the impeller is reduced.
Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has:
1. the polypropylene centrifugal ventilator convenient to clean and maintain is characterized in that the base, the volute, the motor base and the impeller are all made of polypropylene plastics, so that the overall corrosion resistance of the ventilator is improved, the ventilator is favorable for adapting to the use of an external environment for a long time, the manufacturing cost is low, the corrosion resistance is high, and the maintenance is simple;
2. the polypropylene centrifugal ventilator convenient for cleaning and maintenance provided by the utility model collects larger dust particles screened off by the centrifugal ventilator in the use process through the dust collection box, and the dust collection box is taken out from the inner cavity of the volute, so that the dust on the dust collection box can be removed, the cleanliness of the inner cavity of the volute is improved, and the cleaning frequency of the impeller is reduced;
3. the polypropylene centrifugal ventilator convenient for cleaning and maintenance of the utility model has the advantages that the impeller cover is fast and convenient to disassemble, thereby being beneficial to cleaning, maintenance or replacement of the impeller; and the bearing box is arranged outside the volute, so that the maintenance or replacement of the bearing is facilitated, and the working efficiency of the ventilator is improved.
Drawings
Fig. 1 is a schematic structural view of a polypropylene centrifugal ventilator convenient for cleaning and maintenance according to the present invention;
fig. 2 is a left side view schematic structural diagram of a polypropylene centrifugal ventilator convenient for cleaning and maintenance according to the present invention;
fig. 3 is a schematic rear view of a polypropylene centrifugal ventilator convenient for cleaning and maintenance according to the present invention;
fig. 4 is a schematic view of a partial connection between an impeller cover and a mounting groove of a polypropylene centrifugal ventilator convenient for cleaning and maintenance according to the present invention;
in the figure: the device comprises a base 1, a motor base 2, a volute 3, an air outlet 31, an impeller 4, a driving mechanism 5, a motor 51, a belt wheel 52, an annular belt 53, a bearing box 54, a rotating shaft 55, an air inlet 6, an installation groove 7, a through hole 71, an annular groove 72, a buckling groove 73, an impeller cover 8, a buckling 81, a protective cover 9, a compression spring 10, a resistance block 11, a dust collecting groove 12, a dust collecting box 13 and a handle 131.
Detailed Description
The invention will be further elucidated with reference to the drawings and the specific embodiments.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
As shown in fig. 1-4, the polypropylene centrifugal ventilator convenient for cleaning and maintenance of the present invention comprises a base 1, a motor base 2, a volute 3, and an impeller 4, wherein the base 1 is integrally formed with the volute 3 above the base 1, the motor base 2 is disposed on one side of the base 1, a driving mechanism 5 is disposed on the motor base 2, the driving mechanism 5 includes a motor 51, a belt pulley 52, an annular belt 53, a bearing box 54, and a rotating shaft 55, the motor 51 and the bearing box 54 are both fixed above the motor base 2, the bearing box 54 is sleeved with the rotating shaft 55, the belt pulley 52 is disposed at one end of the rotating shaft 55 and at the output end of the motor 51, and is connected through the belt pulley 52 and the annular belt 53, one end of the rotating shaft 55 far from the belt pulley 52 extends into the volute 3 to be connected with the impeller 4 disposed in the volute 3, the upper end of the volute 3 is provided with an air outlet 31, one side of the volute 3 far from the motor base 2 is provided with an air inlet 6, the air inlet 6 is connected with the volute 3 through a bolt, one side of the volute 3, which is close to the air inlet 6, is provided with a mounting groove 7, an impeller cover 8 is arranged on the mounting groove 7, the impeller cover 8 is clamped and detachably connected with the mounting groove 7, and the impeller cover 8 is quickly and conveniently detached, so that the impeller 4 is convenient to clean, maintain or replace; and the bearing housing 54 is provided outside the scroll casing 3, maintenance or replacement of the bearing is facilitated, thereby improving the working efficiency of the ventilator.
One side of the base 1, which is close to the air inlet 6, is provided with a dust collecting groove 12 communicated with the inner cavity of the volute 3, a dust collecting box 13 detachably connected with the dust collecting groove 12 is arranged in the dust collecting groove 12, a dust collecting opening of the dust collecting box 13 is positioned in the middle of the inner cavity of the volute 3, and a handle 131 is arranged on the outer side of the dust collecting box 13, so that the dust collecting box 13 can be taken out conveniently. The dust collection box 13 can collect larger dust particles screened by the centrifugal ventilator in the using process, the dust collection box 13 is taken out from the inner cavity of the volute 3, the dust on the dust collection box 13 can be removed, the cleanliness of the inner cavity of the volute 3 is improved, and the cleaning frequency of the impeller 4 is reduced.
Example 2
As shown in fig. 1-4, the polypropylene centrifugal ventilator convenient for cleaning and maintenance of the present invention comprises a base 1, a motor base 2, a volute 3, and an impeller 4, wherein the base 1 is integrally formed with the volute 3 above the base 1, the motor base 2 is disposed on one side of the base 1, a driving mechanism 5 is disposed on the motor base 2, the driving mechanism 5 includes a motor 51, a belt pulley 52, an annular belt 53, a bearing box 54, and a rotating shaft 55, the motor 51 and the bearing box 54 are both fixed above the motor base 2, the bearing box 54 is sleeved with the rotating shaft 55, the belt pulley 52 is disposed at one end of the rotating shaft 55 and at the output end of the motor 51, and is connected through the belt pulley 52 and the annular belt 53, one end of the rotating shaft 55 far from the belt pulley 52 extends into the volute 3 to be connected with the impeller 4 disposed in the volute 3, the upper end of the volute 3 is provided with an air outlet 31, one side of the volute 3 far from the motor base 2 is provided with an air inlet 6, the air inlet 6 is connected with the volute 3 through a bolt, one side of the volute 3, which is close to the air inlet 6, is provided with a mounting groove 7, an impeller cover 8 is arranged on the mounting groove 7, the impeller cover 8 is clamped and detachably connected with the mounting groove 7, and the impeller cover 8 is quickly and conveniently detached, so that the impeller 4 is convenient to clean, maintain or replace; and the bearing housing 54 is provided outside the scroll casing 3, maintenance or replacement of the bearing is facilitated, thereby improving the working efficiency of the ventilator.
One side of the base 1, which is close to the air inlet 6, is provided with a dust collecting groove 12 communicated with the inner cavity of the volute 3, a dust collecting box 13 detachably connected with the dust collecting groove 12 is arranged in the dust collecting groove 12, a dust collecting opening of the dust collecting box 13 is positioned in the middle of the inner cavity of the volute 3, and a handle 131 is arranged on the outer side of the dust collecting box 13, so that the dust collecting box 13 can be taken out conveniently. The dust collection box 13 can collect larger dust particles screened by the centrifugal ventilator in the using process, the dust collection box 13 is taken out from the inner cavity of the volute 3, the dust on the dust collection box 13 can be removed, the cleanliness of the inner cavity of the volute 3 is improved, and the cleaning frequency of the impeller 4 is reduced.
The base 1, the volute 3, the motor base 2 and the impeller 4 are made of polypropylene plastics, so that the overall corrosion resistance of the ventilator is improved, the ventilator is beneficial to being adapted to the external environment for a long time, the manufacturing cost is low, the corrosion resistance is high, and the ventilator is simple to maintain.
As shown in fig. 2-3, the annular belt 53 is externally sleeved with a protective cover 9 made of polypropylene plastic, and the protective cover 9 is fixedly connected with the motor base 2 through bolts.
As shown in fig. 1 and 4, the mounting groove 7 includes a through hole 71, an annular groove 72 and a plurality of fastening grooves 73, the through hole 71 is coaxial with the impeller 4 and penetrates through the volute 3, so that the impeller 4 is conveniently detached, the annular groove 72 is disposed in the middle section of the mounting groove 7, the fastening grooves 73 are disposed in the front side of the annular groove 72 and communicated with the annular groove 72, and the fastening grooves 73 are uniformly distributed along the circumference of the annular groove 72.
A plurality of buckles 81 are arranged on the outer side of the circumference of the impeller cover 8, and the buckles 81 are matched with the buckle grooves 73.
The improved structure is characterized in that a compression spring 10 fixedly connected with the lower end of the buckle 81 is arranged in a groove at the lower end of the buckle, a resistance block 11 attached to the bottom surface of the annular groove 72 is arranged below the compression spring 10, and the compression spring 10 is inserted into a groove at the upper end of the resistance block 11 and fixedly connected with the resistance block 11. When the impeller cover 8 needs to be detached, the impeller cover 8 is pressed downwards, the compression spring 10 is further compressed, the buckle 81 leaves the top surface of the annular groove 72, the impeller cover 8 is rotated, the buckle 81 and the resistance block 11 are rotated to be overlapped with the buckle groove 73, the buckle 81 bounces out of the buckle groove 73 under the elastic force action of the compression spring 10, and the impeller cover 8 can be taken out easily at the moment, so that the impeller 4 is cleaned or replaced conveniently, and the operation is simple and convenient.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a polypropylene centrifugal fan convenient to wash maintenance which characterized in that: comprises a base (1), a motor base (2), a volute (3) and an impeller (4), wherein the base (1) and the volute (3) above are integrally formed, the motor base (2) is arranged on one side of the base (1), a driving mechanism (5) is arranged on the motor base (2), the driving mechanism (5) comprises a motor (51), a belt wheel (52), an annular belt (53), a bearing box (54) and a rotating shaft (55), the motor (51) and the bearing box (54) are fixed above the motor base (2), the rotating shaft (55) is sleeved in the bearing box (54), one end of the rotating shaft (55) is provided with the belt wheel (52) with the output end of the motor (51) and is connected with the belt wheel (52) and the annular belt (53), one end of the rotating shaft (55) far away from the belt wheel (52) extends into the volute (3) and is connected with the impeller (4) arranged in the volute (3), spiral case (3) upper end is equipped with air outlet (31), one side that motor cabinet (2) were kept away from in spiral case (3) is equipped with air intake (6), air intake (6) pass through bolted connection with spiral case (3), one side that spiral case (3) are close to air intake (6) is equipped with mounting groove (7), be equipped with impeller lid (8) on mounting groove (7), impeller lid (8) can be dismantled with mounting groove (7) block and be connected.
2. The polypropylene centrifugal fan facilitating cleaning and maintenance according to claim 1, wherein: the base (1), the volute (3), the motor base (2) and the impeller (4) are all made of polypropylene plastics.
3. The polypropylene centrifugal fan facilitating cleaning and maintenance according to claim 2, wherein: the motor base (2) and the base (1) are integrally formed, the bottom surfaces of the motor base (2) and the base (1) are flush, and shock absorbers are arranged on the bottom surfaces of the motor base (2) and the base (1).
4. The polypropylene centrifugal fan facilitating cleaning and maintenance according to claim 1, wherein: the annular belt (53) is sleeved with a protective cover (9) made of polypropylene plastics, and the protective cover (9) is fixedly connected with the motor base (2) through bolts.
5. The polypropylene centrifugal fan facilitating cleaning and maintenance according to claim 1, wherein: mounting groove (7) include through-hole (71), ring channel (72) and buckle groove (73), through-hole (71) and impeller (4) are coaxial and link up spiral case (3), mounting groove (7) middle section is located in ring channel (72), buckle groove (73) are located ring channel (72) front side and are communicate with ring channel (72).
6. The polypropylene centrifugal fan convenient for cleaning and maintenance according to claim 5, wherein: the plurality of the buckling grooves (73) are uniformly distributed along the circumference of the annular groove (72).
7. The polypropylene centrifugal fan facilitating cleaning and maintenance according to claim 6, wherein: the impeller cover (8) is characterized in that a plurality of buckles (81) are arranged on the outer side of the circumference of the impeller cover, and the buckles (81) are matched with the buckle grooves (73).
8. The polypropylene centrifugal fan facilitating cleaning and maintenance according to claim 7, wherein: be equipped with in buckle (81) lower extreme recess rather than fixed connection's compression spring (10), compression spring (10) below is equipped with resistance piece (11) with laminating of ring channel (72) bottom surface, compression spring (10) insert resistance piece (11) upper end recess and with resistance piece (11) fixed connection.
9. The polypropylene centrifugal fan facilitating cleaning and maintenance according to claim 1, wherein: one side that base (1) is close to air intake (6) is equipped with dust collecting groove (12) with spiral case (3) inner chamber intercommunication, be equipped with dust collecting box (13) that can dismantle the connection in dust collecting groove (12), dust collecting box's (13) the mouth that gathers dust is in the middle of spiral case (3) inner chamber, dust collecting box (13) outside is equipped with handle (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121463912.4U CN215170849U (en) | 2021-06-30 | 2021-06-30 | Polypropylene centrifugal fan convenient to wash and maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121463912.4U CN215170849U (en) | 2021-06-30 | 2021-06-30 | Polypropylene centrifugal fan convenient to wash and maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215170849U true CN215170849U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121463912.4U Expired - Fee Related CN215170849U (en) | 2021-06-30 | 2021-06-30 | Polypropylene centrifugal fan convenient to wash and maintain |
Country Status (1)
| Country | Link |
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| CN (1) | CN215170849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117803585A (en) * | 2023-12-29 | 2024-04-02 | 广东正州环保科技股份有限公司 | Glass fiber reinforced plastic fan |
-
2021
- 2021-06-30 CN CN202121463912.4U patent/CN215170849U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117803585A (en) * | 2023-12-29 | 2024-04-02 | 广东正州环保科技股份有限公司 | Glass fiber reinforced plastic fan |
| CN117803585B (en) * | 2023-12-29 | 2024-05-17 | 广东正州环保科技股份有限公司 | Glass fiber reinforced plastic fan |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |