CN113982973A - Frequency conversion axial fan - Google Patents
Frequency conversion axial fan Download PDFInfo
- Publication number
- CN113982973A CN113982973A CN202111154787.3A CN202111154787A CN113982973A CN 113982973 A CN113982973 A CN 113982973A CN 202111154787 A CN202111154787 A CN 202111154787A CN 113982973 A CN113982973 A CN 113982973A
- Authority
- CN
- China
- Prior art keywords
- axial flow
- flow fan
- plate
- sliding
- vertical plate
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 title claims description 3
- 230000001681 protective effect Effects 0.000 claims abstract description 9
- 230000030279 gene silencing Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of axial flow fans, and particularly relates to a variable-frequency axial flow fan which comprises an axial flow fan, wherein the lower end of the axial flow fan is provided with an installation base, the upper end of the installation base is provided with a supporting bottom plate, the axial flow fan is fixedly installed at the upper end of the supporting bottom plate, two ends of the axial flow fan are respectively provided with a filter screen and a protective net, the protective net is positioned in an air outlet of the axial flow fan, and the upper end of the installation base is fixedly connected with a vertical plate; according to the invention, the threaded rod is rotated by the handle, the threaded rod can drive the threaded sliding plate to slide leftwards, the threaded sliding plate can drive the guide sliding block to slide leftwards, the guide sliding block can enable the right end of the supporting bottom plate to be lifted upwards through the inclined plane at the top in the trapezoidal groove, the left end of the supporting bottom plate can be rotated at the upper end of the mounting base through the first support, and the supporting bottom plate can drive the right end of the axial flow fan at the upper end to be lifted upwards, so that the elevation angle adjustment of the axial flow fan is realized, and the adjustment is simple and convenient.
Description
Technical Field
The invention belongs to the technical field of axial flow fans, and particularly relates to a variable-frequency axial flow fan.
Background
The axial flow fan has a very wide application, namely, the axial flow fan and the fan blade have the same direction of air flow, such as an electric fan, and an air conditioner outer machine fan is an axial flow type running fan. The "axial flow" is so called because the gas flows parallel to the fan axis. Axial flow fans are typically used in applications where flow requirements are high and pressure requirements are low. The axial fan fixes the position and moves the air. The axial flow fan mainly comprises a fan impeller and a casing, and is simple in structure but high in data requirement. When the existing axial flow fan is used, the base is fixed, so that the elevation angle of the axial flow fan cannot be adjusted at will according to the use requirement, and the use of the axial flow fan is limited to a certain extent.
An elevation angle adjustable ceiling fan published by Chinese patent, application number: CN201811262769.5, including fan seat, fan head and telescopic link; the bottom of the fan head is connected with the fan seat through a telescopic rod; a limiting component is arranged between the fan head and the fan seat; the fan head is connected with the top of the fan seat through a limiting component; the fan head comprises a casing; a double-head shaft motor is arranged in the shell; the double-head shaft motor is fixedly connected with the shell; one point of double-end shaft motor is connected with the flabellum, and double-end shaft motor's the other end and telescopic link fixed connection, this scheme though through the setting of structure, make the fan can carry out the angle of elevation regulation, but fan angle of elevation regulation process stability is relatively poor in this scheme on the one hand, and the back is being adjusted simultaneously, leads to the whole focus skew of fan very easily, leads to the stability of fan relatively poor.
In view of this, the present invention provides a variable frequency axial flow fan to solve the above technical problems.
Disclosure of Invention
The invention provides a variable-frequency axial flow fan, which aims to make up the defects of the prior art and solve the problem that the use of the axial flow fan is limited to a certain extent because the base is fixed when the fan is used in the prior art and the elevation angle of the axial flow fan cannot be adjusted at will according to the use requirement.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a variable-frequency axial flow fan, which comprises an axial flow fan; the lower end of the axial flow fan is provided with a mounting base; a supporting bottom plate is arranged at the upper end of the mounting base; the axial flow fan is fixedly arranged at the upper end of the supporting bottom plate; a filter screen and a protective net are respectively arranged at two ends of the axial flow fan; the protective net is positioned in an air outlet of the axial flow fan; the upper end of the mounting base is fixedly connected with a vertical plate; the left side of the lower end of the supporting bottom plate is rotatably arranged at the upper end of the vertical plate through a first support; the lower end of the supporting bottom plate is provided with a side wall which is connected with the upper end of the mounting base through a corner mechanism.
Preferably; the corner mechanism comprises a trapezoidal groove arranged on the right side of the lower end of the supporting bottom plate; the side wall of the vertical plate is rotatably connected with a threaded rod; the outer wall of the threaded rod is sleeved with a threaded sliding plate; the threaded sliding plate is connected to the upper end of the mounting base in a sliding manner; the tail end of the threaded rod is fixedly provided with a handle; the inner top of the trapezoidal groove is connected with a guide sliding block in a sliding manner; the upper end of the threaded sliding plate is rotatably connected to the lower end of the guide sliding block through a second support.
Preferably; the outer wall of the axial flow fan is sleeved with a silencing barrel; the inner walls of the silencing tubes are elastically connected with the outer wall of the axial flow fan through a plurality of buffer springs which are uniformly distributed; the silencing barrel is fixedly arranged at the upper end of the supporting bottom plate.
Preferably; both ends of the silencing barrel are fixedly connected with rubber rings; the inner ring of the rubber ring is fixedly connected to the circumferential outer wall of the axial flow fan.
Preferably; the handle is a crank.
Preferably; the outer wall of the handle is provided with a rubber sleeve in a fixed sleeve mode.
Preferably; the upper surface of the mounting base is provided with a sliding groove; the width of the sliding groove is smaller than that of the threaded sliding plate; a lead screw is rotatably connected in the sliding groove through a bearing; the vertical plate extends into the sliding groove and is connected with the mounting base in a sliding manner through the sliding groove; one end of the vertical plate, which is positioned in the sliding groove, is provided with a meshing hole; the vertical plate is in meshing transmission with the lead screw through the meshing hole; the mounting base is fixedly connected with positioning plates at two ends of the sliding groove; two ends of the threaded rod are rotatably connected with the positioning plate through bearings; one end of the threaded rod, which is far away from the handle, is in transmission with the lead screw through a belt; the screw rod is the same with threaded rod surface screw thread interval, and when the handle rotated a week, the threaded rod drove the screw thread slide travel distance and the lead screw drives the riser travel distance the same.
Preferably; one end of the vertical plate, which is positioned in the sliding groove, is provided with a ball groove; the ball grooves are connected with balls in a sliding manner; the vertical plate is connected with the sliding groove in a sliding mode through a ball; an elastic friction plate is arranged between every two adjacent balls; the elastic friction plate is connected in the ball groove in a sliding manner; one side of the elastic friction plate, which is close to the ball, is made of rubber, and the middle part of the elastic friction plate is made of spring material; the elastic friction plates are all positioned above the balls; the elastic friction plate is used for reducing the rotating speed of the balls.
The invention has the following beneficial effects:
1. according to the variable-frequency axial flow fan, the threaded rod is rotated through the handle, the threaded rod can drive the threaded sliding plate to slide leftwards, the threaded sliding plate can drive the guide sliding block to slide leftwards, the guide sliding block can enable the right end of the supporting bottom plate to be lifted upwards through the inclined plane at the top of the trapezoidal groove, the left end of the supporting bottom plate can rotate at the upper end of the mounting base through the first support, and the supporting bottom plate can drive the right end of the axial flow fan at the upper end to be lifted upwards, so that the elevation angle of the axial flow fan is adjusted, and the adjustment is simple and convenient.
2. According to the variable-frequency axial flow fan, when the axial flow fan is used, the axial flow fan cannot avoid vibration, so that certain noise pollution is caused, and at the moment, the buffer spring and the silencing barrel on the outer wall of the axial flow fan can effectively buffer vibration, so that vibration and noise in the working process of the axial flow fan are reduced, and the noise pollution can be reduced.
3. According to the variable-frequency axial flow fan, the screw rod and the positioning plate are arranged, and the relative positions of the vertical plate and the mounting base are adjusted, so that the mounting base can effectively provide powerful support for the vertical plate and the supporting bottom plate above the threaded sliding plate, the stability of the variable-frequency axial flow fan is further enhanced, the screw rod and the threaded rod rotate simultaneously, the vertical plate and the threaded sliding plate move oppositely, and the speed of adjusting the angle of the variable-frequency axial flow fan can be effectively accelerated.
Drawings
The invention will be further explained with reference to the drawings.
Fig. 1 is a schematic structural diagram of a variable frequency axial flow fan according to the present invention;
fig. 2 is a schematic structural diagram of a position a in fig. 1 of a variable frequency axial flow fan according to the present invention;
FIG. 3 is a left side view sectional structure diagram of a variable frequency axial flow fan according to the present invention;
FIG. 4 is a schematic structural diagram at B in FIG. 1 of a variable frequency axial flow fan according to the present invention;
in the figure: 1. an axial flow fan; 2. installing a base; 3. a support base plate; 4. a filter screen; 5. a protective net; 6. a vertical plate; 7. a first support; 8. a trapezoidal groove; 9. a threaded rod; 10. a threaded slide plate; 11. a guide slider; 12. a second support; 13. a silencing barrel; 14. a buffer spring; 15. a rubber ring; 16. a handle; 21. a sliding groove; 22. a lead screw; 23. an engagement hole; 24. positioning a plate; 25. a ball groove; 26. a ball bearing; 27. an elastic friction plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the variable frequency axial flow fan according to the present invention comprises an axial flow fan 1, a mounting base 2 is disposed at a lower end of the axial flow fan 1, a supporting base plate 3 is disposed at an upper end of the mounting base 2, the axial flow fan 1 is fixedly mounted at an upper end of the supporting base plate 3, a filter screen 4 and a protective screen 5 are respectively disposed at two ends of the axial flow fan 1, the protective screen 5 is located in an air outlet of the axial flow fan 1, a vertical plate 6 is fixedly connected to an upper end of the mounting base 2, a left side of a lower end of the supporting base plate 3 is rotatably mounted at an upper end of the vertical plate 6 through a first support 7, a side wall at a lower end of the supporting base plate 3 is connected to an upper end of the mounting base 2 through a corner mechanism, the corner mechanism includes a trapezoidal groove 8 disposed at a right side of a lower end of the supporting base 3, a threaded rod 9 is rotatably connected to a side wall of the vertical plate 6, a threaded sliding plate 10 is sleeved on an outer wall of the threaded rod 9, the threaded sliding connected to the upper end of the mounting base 2, terminal fixed mounting of threaded rod 9 has handle 16, the interior top sliding connection of dovetail groove 8 has direction slider 11, the lower extreme at direction slider 11 is connected in the rotation of second support 12 to the upper end of screw slide 10, rotate threaded rod 9 through handle 16, threaded rod 9 can drive screw slide 10 and slide left, screw slide 10 then can drive direction slider 11 and slide left, direction slider 11 then can make supporting baseplate 3's right-hand member upwards lift up through the inclined plane at dovetail groove 8 interior top, supporting baseplate 3's left end then can rotate in installation base 2 upper end through first support 7, supporting baseplate 3 then can drive the axial fan 1's of upper end right-hand member upwards lift up, thereby realize axial fan 1's elevation angle modulation, it is simple and convenient to adjust.
As an embodiment of the present invention, the outer wall of the axial flow fan 1 is sleeved with a silencing barrel 13, the inner walls of the silencing barrel 13 are elastically connected to the outer wall of the axial flow fan 1 through a plurality of buffer springs 14 which are uniformly distributed, the silencing barrel 13 is fixedly mounted at the upper end of the supporting base plate 3, when the axial flow fan 1 is used, the axial flow fan 1 cannot avoid vibration, and certain noise pollution is caused, and at this time, the buffer springs 14 and the silencing barrel 13 on the outer wall of the axial flow fan 1 can effectively buffer vibration, so that vibration and noise in the operation of the axial flow fan 1 are reduced, and noise pollution can be reduced.
As an embodiment of the present invention, both ends of the noise reduction tube 13 are fixedly connected with rubber rings 15, and an inner ring of the rubber ring 15 is fixedly connected to the circumferential outer wall of the axial flow fan 1, so that dust can be prevented from entering the noise reduction tube 13.
In one embodiment of the present invention, the handle 16 is a crank, and the threaded rod 9 is rotated by the crank to save more labor and facilitate the operation.
As an implementation mode of the invention, the outer wall of the handle 16 is fixedly sleeved with a rubber sleeve, so that the hand feeling is improved.
As an embodiment of the present invention; the upper surface of the mounting base 2 is provided with a sliding groove 21; the width of the sliding groove 21 is smaller than that of the threaded sliding plate 10; a lead screw 22 is rotatably connected in the sliding groove 21 through a bearing; the vertical plate 6 extends into the sliding groove 21, and the vertical plate 6 is connected with the mounting base 2 in a sliding manner through the sliding groove 21; one end of the vertical plate 6, which is positioned in the sliding groove 21, is provided with an engaging hole 23; the vertical plate 6 is in meshing transmission with the lead screw 22 through the meshing hole 23; the two ends of the mounting base 2, which are positioned in the sliding groove 21, are fixedly connected with positioning plates 24; both ends of the threaded rod 9 are rotatably connected with the positioning plate 24 through bearings; one end of the threaded rod 9, which is far away from the handle 16, is in transmission with a lead screw 22 through a belt; the distance between the screw rod 22 and the surface threads of the threaded rod 9 is the same, and when the handle 16 rotates for one circle, the threaded rod 9 drives the threaded sliding plate 10 to move for the same distance as the screw rod 22 drives the vertical plate 6 to move;
when the variable-frequency axial flow fan is in work, by arranging the screw rod 22 and the positioning plate 24, when the angle of the variable-frequency axial flow fan is adjusted, the handle 16 is rotated, the handle 16 drives the threaded rod 9 to rotate, because both ends of the threaded rod 9 are rotatably connected with the positioning plate 24, the threaded rod 9 is driven by the belt in the rotating process, the screw rod 22 in the sliding groove 21 is rotated, the vertical plate 6 meshed with the screw rod 22 through the meshing hole 23 is driven by the rotating screw rod 22, the vertical plate 6 and the threaded sliding plate 10 move relative to the supporting base plate 3, the vertical plate 6 and the threaded sliding plate 10 are drawn close to each other, along with the increase of the distance of the displacement of the threaded sliding plate 10 relative to the trapezoidal groove 8, the supporting base plate 3 connected with the vertical plate 6 generates the angle change relative to the mounting base 2, and simultaneously, because the vertical plate 6 generates the relative sliding in the sliding groove 21, at this moment, the vertical plate 6 and the axial flow fan are gradually close to the center of the mounting base 2, the vertical plate 6 and the mounting base 2 are adjusted in relative positions, the mounting base 2 can effectively provide powerful support for the vertical plate 6 and the supporting base plate 3 above the threaded sliding plate 10, the stability of the variable-frequency axial flow fan is further enhanced, the screw rod 22 and the threaded rod 9 rotate simultaneously, the vertical plate 6 and the threaded sliding plate 10 move oppositely, and the angle adjustment rate of the axial flow fan can be effectively accelerated.
As an embodiment of the present invention; one end of the vertical plate 6, which is positioned in the sliding groove 21, is provided with a ball groove 25; a ball 26 is connected in the ball groove 25 in a sliding way; the vertical plate 6 is connected with the sliding groove 21 in a sliding manner through a ball 26; an elastic friction plate 27 is arranged between two adjacent balls 26; the elastic friction plate is connected in the ball groove 25 in a sliding manner; one side of the elastic friction plate 27 close to the ball 26 is made of rubber, and the middle part of the elastic friction plate is made of spring material; the elastic friction plates 27 are all positioned above the balls 26; the elastic friction plate 27 is used for reducing the rotating speed of the balls 26;
when the axial flow fan is in operation, by arranging the ball groove 25 and the ball 26, when the vertical plate 6 slides in the sliding groove 21 under the action of the lead screw 22, by arranging the ball groove 25 and the ball 26 between the vertical plate 6 and the sliding, the friction force generated by the vertical plate 6 moving in the sliding groove 21 is effectively reduced by the rotation of the ball 26, the smoothness of the vertical plate is enhanced, and the stability of the axial flow fan in the adjusting process is effectively enhanced, meanwhile, the arrangement of the elastic friction plate 27 enables the handle 16 to rotate too fast, so that when the angle adjusting speed is too fast, the ball 26 slides to one side of the ball groove 25, and further the elastic friction plate 27 among the balls 26 is extruded, so that the friction force between the elastic friction plate 27 and the ball 26 is increased, and further the friction force between the vertical plate 6 and the sliding groove 21 is enhanced, and further, when the lead screw 22 drives the vertical plate 6 to move, larger resistance exists, and the resistance is transmitted to the handle 16, the resistance to the rotation of the handle 16 is converted, and the phenomenon that the handle 16 is too fast due to the fact that the handle is too hard during adjustment is avoided, and the stability of the axial flow fan during adjustment is poor.
The specific implementation process comprises the following steps:
when the elevation angle of the axial flow fan 1 needs to be adjusted, the threaded rod 9 is rotated by the handle 16, the threaded rod 9 can drive the threaded sliding plate 10 to slide leftwards, the threaded sliding plate 10 can drive the guide sliding block 11 to slide leftwards, the guide sliding block 11 can enable the right end of the supporting bottom plate 3 to be lifted upwards through the inclined plane at the top in the trapezoidal groove 8, the left end of the supporting bottom plate 3 can rotate at the upper end of the mounting base 2 through the first support 7, the supporting bottom plate 3 can drive the right end of the axial flow fan 1 at the upper end to be lifted upwards, so that the elevation angle adjustment of the axial flow fan 1 is realized, the adjustment is simple and convenient, when the axial flow fan 1 is used, the axial flow fan 1 cannot avoid vibration, so that certain noise pollution is caused, at the moment, the buffer spring 14 and the silencing barrel 13 on the outer wall of the axial flow fan 1 can effectively buffer vibration, so that the vibration and noise of the axial flow fan 1 during working are reduced, the noise pollution can be reduced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a frequency conversion axial fan, includes axial fan (1), its characterized in that: the lower end of the axial flow fan (1) is provided with a mounting base (2); a supporting bottom plate (3) is arranged at the upper end of the mounting base (2); the axial flow fan (1) is fixedly arranged at the upper end of the supporting bottom plate (3); a filter screen (4) and a protective screen (5) are respectively arranged at two ends of the axial flow fan (1); the protective net (5) is positioned in an air outlet of the axial flow fan (1); the upper end of the mounting base (2) is fixedly connected with a vertical plate (6); the left side of the lower end of the supporting bottom plate (3) is rotatably arranged at the upper end of the vertical plate (6) through a first support (7); the lower end of the supporting bottom plate (3) is provided with a side wall which is connected with the upper end of the mounting base (2) through a corner mechanism.
2. The variable frequency axial flow fan according to claim 1, wherein: the corner mechanism comprises a trapezoidal groove (8) arranged on the right side of the lower end of the supporting bottom plate (3); the side wall of the vertical plate (6) is rotatably connected with a threaded rod (9); the outer wall of the threaded rod (9) is sleeved with a threaded sliding plate (10); the threaded sliding plate (10) is connected to the upper end of the mounting base (2) in a sliding manner; the tail end of the threaded rod (9) is fixedly provided with a handle (16); the inner top of the trapezoid-shaped groove (8) is connected with a guide sliding block (11) in a sliding manner; the upper end of the threaded sliding plate (10) is rotatably connected to the lower end of the guide sliding block (11) through a second support (12).
3. The variable frequency axial flow fan according to claim 1, wherein; the outer wall of the axial flow fan (1) is sleeved with a silencing barrel (13); the inner walls of the silencing barrels (13) are elastically connected with the outer wall of the axial flow fan (1) through a plurality of buffer springs (14) which are uniformly distributed; the silencing barrel (13) is fixedly arranged at the upper end of the supporting bottom plate (3).
4. The variable frequency axial flow fan according to claim 3, wherein: both ends of the silencing barrel (13) are fixedly connected with rubber rings (15); the inner ring of the rubber ring (15) is fixedly connected to the circumferential outer wall of the axial flow fan (1).
5. The variable frequency axial flow fan according to claim 2, wherein: the handle (16) is a crank.
6. The variable frequency axial flow fan according to claim 2, wherein: the outer wall of the handle (16) is provided with a rubber sleeve in a fixed sleeve mode.
7. The variable frequency axial flow fan according to claim 2, wherein: the upper surface of the mounting base (2) is provided with a sliding groove (21); the width of the sliding groove (21) is smaller than that of the threaded sliding plate (10); a lead screw (22) is rotatably connected in the sliding groove (21) through a bearing; the vertical plate (6) extends into the sliding groove (21), and the vertical plate (6) is connected with the mounting base (2) in a sliding mode through the sliding groove (21); one end of the vertical plate (6) positioned in the sliding groove (21) is provided with an engaging hole (23); the vertical plate (6) is in meshing transmission with the screw rod (22) through the meshing hole (23); the mounting base (2) is fixedly connected with positioning plates (24) at two ends of the sliding groove (21); both ends of the threaded rod (9) are rotatably connected with the positioning plate (24) through bearings; one end of the threaded rod (9) far away from the handle (16) is in transmission with the screw rod (22) through a belt; the distance between the screw rod (22) and the surface threads of the threaded rod (9) is the same, and when the handle (16) rotates for one circle, the threaded rod (9) drives the threaded sliding plate (10) to move for the same distance as the screw rod (22) drives the vertical plate (6).
8. The variable frequency axial flow fan according to claim 7, wherein: one end of the vertical plate (6) positioned in the sliding groove (21) is provided with a ball groove (25); the ball groove (25) is internally connected with a ball (26) in a sliding way; the vertical plate (6) is connected with the sliding groove (21) in a sliding mode through a ball (26); an elastic friction plate (27) is arranged between two adjacent balls (26); the elastic friction plate (27) is connected in the ball groove (25) in a sliding manner; one side of the elastic friction plate (27) close to the ball (26) is made of rubber, and the middle part of the elastic friction plate is made of spring material; the elastic friction plates (27) are all positioned above the balls (26); the elastic friction plate (27) is used for reducing the rotating speed of the balls (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154787.3A CN113982973A (en) | 2021-09-29 | 2021-09-29 | Frequency conversion axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154787.3A CN113982973A (en) | 2021-09-29 | 2021-09-29 | Frequency conversion axial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113982973A true CN113982973A (en) | 2022-01-28 |
Family
ID=79737300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111154787.3A Pending CN113982973A (en) | 2021-09-29 | 2021-09-29 | Frequency conversion axial fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113982973A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116412158A (en) * | 2023-04-27 | 2023-07-11 | 杭州海弯风机有限公司 | Vibration reduction type axial flow fan with protection function |
| CN116746460A (en) * | 2023-06-20 | 2023-09-15 | 沂水晟佰钛业科技有限公司 | Mine environment restoration equipment and method |
-
2021
- 2021-09-29 CN CN202111154787.3A patent/CN113982973A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116412158A (en) * | 2023-04-27 | 2023-07-11 | 杭州海弯风机有限公司 | Vibration reduction type axial flow fan with protection function |
| CN116412158B (en) * | 2023-04-27 | 2023-12-29 | 浙江明新流体机械有限公司 | Vibration reduction type axial flow fan with protection function |
| CN116746460A (en) * | 2023-06-20 | 2023-09-15 | 沂水晟佰钛业科技有限公司 | Mine environment restoration equipment and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113982973A (en) | Frequency conversion axial fan | |
| CN210724406U (en) | Dustproof motor housing for coal mine | |
| CN107982885B (en) | Flying disc launching mechanism capable of passively adjusting extrusion amount | |
| CN114109871A (en) | Frequency conversion axial fan | |
| CN104724292B (en) | Duct power set and aircraft | |
| CN211259075U (en) | Fan blade inclination angle adjustable fan blade structure and axial flow fan | |
| CN213088315U (en) | Shock-absorbing structure for axial-flow fan | |
| CN108541407A (en) | A kind of adjustable agricultural machinery belt pulley removes native device | |
| CN117819444A (en) | Self-moving lifting operation platform | |
| CN211992324U (en) | Full-automatic efficient polishing machine | |
| CN217568200U (en) | SCR denitrification facility's flue gas velocity of flow adjustment structure | |
| CN207748650U (en) | A kind of noise reduction frame of textile machine | |
| CN204061335U (en) | Centrifugal compressor's regulation structure and centrifugal compressor | |
| CN211525112U (en) | Novel flow-adjustable petrochemical process pump | |
| CN111023386B (en) | A new trend system that is used for maintenance security of office area to be high | |
| CN219888317U (en) | Square head fan with spherical steering structure on base | |
| CN111634402A (en) | High-thrust low-noise pump jet propulsion device | |
| CN110966236A (en) | Fan blade inclination angle adjustable fan blade structure and axial flow fan | |
| CN217126509U (en) | Adjustable winding roller support | |
| CN217713014U (en) | Impeller centrifugal fan that stability is high | |
| CN219872090U (en) | Telescopic lens structure | |
| CN116575207B (en) | Alternate spinning rubber roller assembly convenient for heat dissipation | |
| CN109335629A (en) | A kind of passive loss of weight mechanism design | |
| CN217107090U (en) | Negative pressure forming auxiliary device for ventilation shaft | |
| CN108803836A (en) | A kind of device that GPU accelerates |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220128 |