Polypropylene (PP) multi-wing type corrosion-resistant fan

Abstract

The utility model discloses a PP multi-wing type corrosion-resistant fan, and relates to the technical field of fans, the PP multi-wing type corrosion-resistant fan comprises a driving assembly, the driving assembly is used for conveying gas; the mounting assembly is arranged on the outer side of the driving assembly, and the mounting assembly is used for carrying out limiting mounting on the driving assembly; the adjusting assembly is arranged on the surface of the bottom of the mounting assembly, the adjusting assembly is used for providing support for the mounting assembly and adjusting the angle of the mounting assembly, the mounting assembly comprises a supporting frame, and mounting grooves are formed in the upper positions of the centers of the two side walls of an inner cavity of the supporting frame; according to the utility model, not only can gas be conveyed and the conveying angle be adjusted, but also the blades can be conveniently replaced by working personnel, so that the blades can be conveniently replaced when the blades are broken, the whole blades do not need to be replaced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a PP multi-wing corrosion-resistant fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. A corrosion-resistant fan is a fan device used in special environments. It is made of corrosion-resistant materials and can operate stably for a long time in corrosive media. Its working principle is mainly to use the principle of aerodynamics to inhale and introduce air into the fan, and then through the special structure inside the machine, the air forms a rotational motion in the machine. During the rotation process, harmful substances in the air, such as moisture, sulfide, nitrogen oxides, etc., are effectively adsorbed and removed, so that the air is purified. The purified air is then discharged through the outlet of the fan to protect the environment.

[0003] Although the existing PP multi-blade corrosion-resistant fan can transport gas, it is inconvenient to replace the blades when they are broken, and it is inconvenient to adjust the angle, so it needs to be replaced as a whole, which reduces work efficiency. Therefore, we propose a PP multi-blade corrosion-resistant fan to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a PP multi-blade corrosion-resistant fan, which solves the problem that it is inconvenient to replace the blades when they are broken and it is inconvenient to adjust the angle.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a PP multi-wing corrosion-resistant fan, including a drive assembly, the drive assembly is used to transport gas;

[0006] An installation component, the installation component is arranged outside the driving component, and the installation component is used to limit the installation of the driving component; and

[0007] An adjusting component is arranged on the bottom surface of the mounting component, and is used to provide support for the mounting component and adjust the angle of the mounting component.

[0008] Preferably, the mounting assembly includes a support frame, and mounting grooves are provided in the center and upper positions of both side walls of the inner cavity of the support frame, bearings are provided in the inner cavity of the mounting grooves, and the inner cavity of the bearings is connected to the mounting assembly, and an electric telescopic rod is provided in the center position of one side of the bottom surface of the inner cavity of the support frame, and an arc plate is provided at the output end of the electric telescopic rod, and the inner cavity of the arc plate is connected to the mounting assembly.

[0009] Preferably, the mounting assembly includes a circular shell, which is arranged in the inner cavity of the support frame, and connecting columns are embedded and connected at the center positions on both sides of the circular shell. A limiting frame is arranged in the inner cavity of the circular shell, and a limiting groove is opened on one side surface of the limiting frame, and the inner cavity of the limiting groove is connected to the driving assembly.

[0010] Preferably, the driving assembly comprises a driving motor, the driving motor is arranged in the inner cavity of the limiting groove, a rotating shaft is arranged at the output end of the driving motor, a shaft sleeve is sleeved on the rotating shaft, a sliding groove is arranged on the outer wall of the shaft sleeve, a plurality of the sliding grooves are arranged, and the plurality of the sliding grooves are distributed in a circular array;

[0011] The outer wall of the shaft sleeve is provided with blades, and the blades are provided in plurality, and the plurality of blades are distributed in a circumferential array, and a slider is provided on the bottom surface of each blade, and the bottom end of each slider corresponds to each slide groove one by one;

[0012] A baffle is provided on one side surface of the sleeve, a fixing bolt is provided at a central position on one side surface of the baffle, an internal threaded hole is opened on one side surface of the rotating shaft, and the bottom end of the fixing bolt is rotatably connected to the inner cavity of the internal threaded hole.

[0013] Preferably, a retaining ring is provided on the other side of the shaft sleeve, and a surface on one side of the retaining ring is connected to a surface on one side of the driving motor.

[0014] Preferably, guide grooves are provided at the center of both side walls of the inner cavity of the slide groove, and guide strips are provided at the center of both side wall surfaces of the sliding block, and the guide strips are slidably connected to the inner cavity of the guide groove.

[0015] Preferably, a partition block is provided on one side surface of the baffle, and a plurality of the partition blocks are provided, and the plurality of the partition blocks are distributed in a circular array, and the two side walls of the partition block are in contact with the two blades.

[0016] Beneficial Effects

[0017] The utility model provides a PP multi-wing corrosion-resistant fan. Compared with the prior art, it has the following advantages:

[0018] Beneficial effects:

[0019] When the PP multi-blade corrosion-resistant blower needs to transport gas, the adjusting component is first placed in a preset position, and then the mounting component is movably connected to the inner cavity of the adjusting component, so that the adjusting component can provide support for the mounting component, and then the adjusting component can adjust the angle of the mounting component, so that it is convenient for the staff to adjust the appropriate position. Since the driving component is fixedly connected to the inner cavity of the mounting component, the mounting component can provide support for the driving component, and then the mounting component can be adjusted while driving the driving component to adjust the appropriate position, so that the staff can easily adjust the gas and improve the transportation efficiency. Since most of the materials of the adjusting component, the mounting component and the driving component are made of polypropylene PP material, they can have a certain corrosion resistance, thereby increasing their service life, and polypropylene PP has a lighter weight, which is convenient for the staff to install and move, thereby improving convenience and having good strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall side structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0023] Figure 4 This is a schematic diagram of the planed surface structure of the installation assembly of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure A of the utility model;

[0026] Figure 7 This is a schematic diagram of the B structure of the utility model.

[0027] In the figure: 1. adjustment component; 11. support frame; 12. installation groove; 13. bearing; 14. electric telescopic rod; 15. arc plate; 2. installation component; 21. circular shell; 22. connecting column; 23. limit frame; 24. limit groove; 3. drive component; 31. drive motor; 32. rotating shaft; 33. retaining ring; 34. bushing; 35. slide groove; 36. blade; 37. slider; 38. baffle; 39. fixing bolt; 310. internal threaded hole; 311. guide groove; 312. guide strip; 313. partition block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-7 The utility model provides a technical solution: a PP multi-wing corrosion-resistant fan, comprising a driving component 3, the driving component 3 is used to transport gas; a mounting component 2, the mounting component 2 is arranged outside the driving component 3, and the mounting component 2 is used to limit the mounting of the driving component 3; and an adjusting component 1, the adjusting component 1 is arranged on the bottom surface of the mounting component 2, and the adjusting component 1 is used to provide support for the mounting component 2 and adjust the angle of the mounting component 2;

[0030] When gas needs to be transported, first place the adjustment component 1 at the preset position, and then flexibly connect the installation component 2 to the inner cavity of the adjustment component 1, so that the adjustment component 1 can provide support for the installation component 2, and then the adjustment component 1 can adjust the angle of the installation component 2, so that it is convenient for the staff to adjust the appropriate position. Since the driving component 3 is fixedly connected to the inner cavity of the installation component 2, the installation component 2 can provide support for the driving component 3, and then the installation component 2 can be adjusted while driving the driving component 3 is adjusted, so that it is convenient for the staff to adjust the appropriate position, which is convenient for gas transportation and improves the transportation efficiency. Since most of the materials of the adjustment component 1, the installation component 2 and the driving component 3 are made of polypropylene PP, they can have a certain corrosion resistance, thereby increasing their service life, and polypropylene PP has a lighter weight, which is convenient for the staff to install and move, thereby improving convenience and having good strength.

[0031] See also Figure 1 , Figure 2 , Figure 3 The mounting assembly 2 includes a support frame 11, and mounting grooves 12 are provided at the upper center of both side walls of the inner cavity of the support frame 11, and a bearing 13 is provided in the inner cavity of the mounting groove 12, and the inner cavity of the bearing 13 is connected to the mounting assembly 2, and an electric telescopic rod 14 is provided at the center of one side of the bottom surface of the inner cavity of the support frame 11, and an arc plate 15 is provided at the output end of the electric telescopic rod 14, and the inner cavity of the arc plate 15 is connected to the mounting assembly 2;

[0032] The mounting assembly includes a support frame 11, which can be placed in a preset position and provide a foundation for opening the mounting groove 12. Since the inner cavity of the mounting groove 12 is fixedly connected to a bearing 13, and the inner cavity of the bearing 13 is connected to the mounting assembly 2, the support frame 11 can provide support for the mounting assembly 2, and the mounting assembly 2 can move in the inner cavity of the bearing 13. Since an electric telescopic rod 14 is fixedly connected to the center position of one side of the bottom surface of the inner cavity of the support frame 11, and an arc plate 15 is fixedly connected to the output end of the electric telescopic rod 14, and the inner cavity of the arc plate 15 is connected to the mounting assembly 2, the output end of the electric telescopic rod 14 can be extended and retracted while driving the arc plate 15 to move up and down, and the arc plate 15 can drive one end of the mounting assembly 2 to move up and down, so that the position of the mounting assembly 2 can be adjusted, so as to improve convenience. Since the support frame 11 is made of polypropylene PP material, and polypropylene PP has excellent corrosion resistance, the corrosion resistance of the support frame 11 can be improved, thereby improving the service life.

[0033] See also Figure 1 , Figure 2 , Figure 4 The mounting assembly 2 includes a circular shell 21, which is arranged in the inner cavity of the support frame 11. Connecting columns 22 are embedded and connected at the center positions on both sides of the circular shell 21. A limiting frame 23 is arranged in the inner cavity of the circular shell 21. A limiting groove 24 is arranged on one side of the limiting frame 23. The inner cavity of the limiting groove 24 is connected to the driving assembly 3.

[0034] By installing the circular shell 21 in the assembly 2, it can be movably connected to the inner cavity of the support frame 11 and provide an installation foundation for the connecting column 22. Since the connecting column 22 is embedded and connected at the center position on both sides of the circular shell 21, and one end of the connecting column is movably connected to the inner cavity of the bearing 13, the circular shell 21 can be moved in the inner cavity of the support frame 11 through the connecting column 22, so that the angle of the circular shell 21 can be conveniently adjusted to improve convenience. Since a limiting groove 24 is provided on one side surface of the limiting frame 23, and the inner cavity of the limiting groove 24 is connected to the driving assembly 3, the driving assembly 3 can be fixedly connected to the inner cavity of the limiting groove 24, so that the limiting frame 23 can provide support for the driving assembly 3, so as to improve the stability of the driving assembly 3. Since the circular shell 21 is made of polypropylene PP material, and the circular structure has good aerodynamic characteristics, the circular shell 21 can have a certain corrosion resistance, so that the circular shell 21 can reduce the resistance of the airflow inside the fan, so as to improve the efficiency of the driving assembly 3, which is suitable for use in harsh environments.

[0035] See also Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7The drive assembly 3 includes a drive motor 31, which is arranged in the inner cavity of the limit groove 24. A rotating shaft 32 is arranged at the output end of the drive motor 31, and a sleeve 34 is sleeved on the rotating shaft 32. A sliding groove 35 is provided on the outer wall of the sleeve 34, and a plurality of sliding grooves 35 are provided, and the plurality of sliding grooves 35 are distributed in a circular array; a blade 36 is provided on the outer wall of the sleeve 34, and a plurality of blades 36 are provided, and the plurality of blades 36 are distributed in a circular array, and a slider 37 is provided on the bottom surface of each blade 36, and the bottom end of each slider 37 corresponds to each sliding groove 35 one by one; a baffle 38 is provided on one side surface of the sleeve 34, and a fixing bolt 3 is provided at the center position of one side surface of the baffle 38. 9. An internal threaded hole 310 is provided on one side surface of the rotating shaft 32. The bottom end of the fixing bolt 39 is rotatably connected to the inner cavity of the internal threaded hole 310. A retaining ring 33 is provided on the other side of the shaft sleeve 34. One side surface of the retaining ring 33 is connected to one side surface of the driving motor 31. A guide groove 311 is provided at the center of both side walls of the inner cavity of the slide groove 35. A guide bar 312 is provided at the center of both side wall surfaces of the slider 37. The guide bar 312 is slidably connected to the inner cavity of the guide groove 311. A partition block 313 is provided on one side surface of the baffle 38. There are multiple partition blocks 313, which are distributed in a circular array. Both side walls of the partition block 313 fit between the two blades 36.

[0036] The driving motor 31 in the driving assembly 3 can be fixedly connected to the inner cavity of the limiting groove 24 and provide an installation foundation for the rotating shaft 32. Since the rotating shaft 32 is sleeved with a shaft sleeve 34 and the outer wall of the shaft sleeve 34 is installed with a blade 36, the output end of the driving motor 31 can be rotated while driving the shaft sleeve 34 to rotate, and then the shaft sleeve 34 can drive the blade 36 to rotate, so that the blade 36 can transport the gas. Since the outer wall of the shaft sleeve 34 is provided with a plurality of slide grooves 35, and the blade 36 is installed with a plurality of slide blocks 37, the bottom surfaces of the plurality of blades 36 are fixedly connected, so that the plurality of slide blocks 37 can be connected with the plurality of slide blocks 37. The slide grooves 35 correspond one to one, so that it is convenient for the staff to install the blades 36, so that it is convenient for the staff to replace the blades 36. Since there are multiple blades 36 installed, and the blades 36 are made of polypropylene PP material, the blades 36 can be corrosion-resistant, and the noise generated during the driving motor 31 to drive the blades 36 to rotate is relatively low, so that it can be suitable for places that require a low-noise environment. A baffle 38 is installed on one side of the sleeve 34, and a fixing bolt 39 is rotatably connected to the center of the surface of one side of the baffle 38. At the same time, an internal threaded hole 310 is opened on one side of the rotating shaft 32, and the fixing bolt 39 is connected to the center of the surface of the baffle 38. The bottom end of the bolt 39 is rotatably connected to the inner cavity of the internal threaded hole 310, so that the baffle 38 can be connected to the rotating shaft 32 through the fixing bolt 39, and then the baffle 38 can limit and fix the multiple blades 36, so as to improve its safety. Since the other side of the sleeve 34 is sleeved with a retaining ring 33, and the surface of one side of the retaining ring 33 is connected to the surface of one side of the driving motor 31, the retaining ring 33 can resist the blades 36, thereby reducing the wear of the blades 36 and the sleeve 34, so as to improve the service life. Since the guide grooves 311 are provided in the center of the two side walls of the inner cavity of the slide groove 35, and the surface of the two side walls of the slider 37 is in the center They are all fixedly connected with guide strips 312, and the guide strips 312 are slidably connected to the inner cavity of the guide groove 311, so that the staff can easily install and replace the blades 36, thereby improving the stability of the blades 36, so as to improve the convenience. Since a partition block 313 is fixedly connected to the surface of one side of the baffle 38, and a plurality of partition blocks 313 are fixedly connected, and the plurality of partition blocks 313 are distributed in a circular array, and the two side walls of the partition block 313 are in contact with the two blades 36, the partition block 313 can separate the two blades 36, thereby improving the stability of the blade 36, so as to increase the service life of the blade 36.

[0037] During operation, when gas needs to be transported, first place the adjustment component 1 at the preset position, and then flexibly connect the installation component 2 to the inner cavity of the adjustment component 1, so that the adjustment component 1 can provide support for the installation component 2, and then the adjustment component 1 can adjust the angle of the installation component 2, so that it is convenient for the staff to adjust the appropriate position. Since the driving component 3 is fixedly connected to the inner cavity of the installation component 2, the installation component 2 can provide support for the driving component 3, and then the installation component 2 can be adjusted while driving the driving component 3 to adjust, so that it is convenient for the staff to adjust the appropriate position, so that the gas can be transported conveniently and the transportation efficiency can be improved. Since most of the materials of the adjustment component 1, the installation component 2 and the driving component 3 are made of polypropylene PP, they can have a certain corrosion resistance, thereby increasing their service life, and polypropylene PP has a lighter weight, which is convenient for the staff to install and move, thereby improving convenience and having good strength.

[0038] The mounting assembly includes a support frame 11, which can be placed in a preset position and provide a foundation for opening the mounting groove 12. Since the inner cavity of the mounting groove 12 is fixedly connected to a bearing 13, and the inner cavity of the bearing 13 is connected to the mounting assembly 2, the support frame 11 can provide support for the mounting assembly 2, and the mounting assembly 2 can move in the inner cavity of the bearing 13. Since an electric telescopic rod 14 is fixedly connected to the center position of one side of the bottom surface of the inner cavity of the support frame 11, and an arc plate 15 is fixedly connected to the output end of the electric telescopic rod 14, and the inner cavity of the arc plate 15 is connected to the mounting assembly 2, the output end of the electric telescopic rod 14 can be extended and retracted while driving the arc plate 15 to move up and down, and the arc plate 15 can drive one end of the mounting assembly 2 to move up and down, so that the position of the mounting assembly 2 can be adjusted, so as to improve convenience. Since the support frame 11 is made of polypropylene PP material, and polypropylene PP has excellent corrosion resistance, the corrosion resistance of the support frame 11 can be improved, thereby improving the service life.

[0039] By installing the circular shell 21 in the assembly 2, it can be movably connected to the inner cavity of the support frame 11 and provide an installation foundation for the connecting column 22. Since the connecting column 22 is embedded and connected at the center position on both sides of the circular shell 21, and one end of the connecting column is movably connected to the inner cavity of the bearing 13, the circular shell 21 can be moved in the inner cavity of the support frame 11 through the connecting column 22, so that the angle of the circular shell 21 can be conveniently adjusted to improve convenience. Since a limiting groove 24 is provided on one side surface of the limiting frame 23, and the inner cavity of the limiting groove 24 is connected to the driving assembly 3, the driving assembly 3 can be fixedly connected to the inner cavity of the limiting groove 24, so that the limiting frame 23 can provide support for the driving assembly 3, so as to improve the stability of the driving assembly 3. Since the circular shell 21 is made of polypropylene PP material, and the circular structure has good aerodynamic characteristics, the circular shell 21 can have a certain corrosion resistance, so that the circular shell 21 can reduce the resistance of the airflow inside the fan, so as to improve the efficiency of the driving assembly 3, which is suitable for use in harsh environments.

[0040] The driving motor 31 in the driving assembly 3 can be fixedly connected to the inner cavity of the limiting groove 24 and provide an installation foundation for the rotating shaft 32. Since the rotating shaft 32 is sleeved with a shaft sleeve 34 and the outer wall of the shaft sleeve 34 is installed with a blade 36, the output end of the driving motor 31 can be rotated while driving the shaft sleeve 34 to rotate, and then the shaft sleeve 34 can drive the blade 36 to rotate, so that the blade 36 can transport the gas. Since the outer wall of the shaft sleeve 34 is provided with a plurality of slide grooves 35, and the blade 36 is installed with a plurality of slide blocks 37, the bottom surfaces of the plurality of blades 36 are fixedly connected, so that the plurality of slide blocks 37 can be connected with the plurality of slide blocks 37. The slide grooves 35 correspond one to one, so that it is convenient for the staff to install the blades 36, so that it is convenient for the staff to replace the blades 36. Since there are multiple blades 36 installed, and the blades 36 are made of polypropylene PP material, the blades 36 can be corrosion-resistant, and the noise generated during the driving motor 31 to drive the blades 36 to rotate is relatively low, so that it can be suitable for places that require a low-noise environment. A baffle 38 is installed on one side of the sleeve 34, and a fixing bolt 39 is rotatably connected to the center of the surface of one side of the baffle 38. At the same time, an internal threaded hole 310 is opened on one side of the rotating shaft 32, and the fixing bolt 39 is connected to the center of the surface of the baffle 38. The bottom end of the bolt 39 is rotatably connected to the inner cavity of the internal threaded hole 310, so that the baffle 38 can be connected to the rotating shaft 32 through the fixing bolt 39, and then the baffle 38 can limit and fix the multiple blades 36, so as to improve its safety. Since the other side of the sleeve 34 is sleeved with a retaining ring 33, and the surface of one side of the retaining ring 33 is connected to the surface of one side of the driving motor 31, the retaining ring 33 can resist the blades 36, thereby reducing the wear of the blades 36 and the sleeve 34, so as to improve the service life. Since the guide grooves 311 are provided in the center of the two side walls of the inner cavity of the slide groove 35, and the surface of the two side walls of the slider 37 is in the center They are all fixedly connected with guide strips 312, and the guide strips 312 are slidably connected to the inner cavity of the guide groove 311, so that the staff can easily install and replace the blades 36, thereby improving the stability of the blades 36, so as to improve the convenience. Since a partition block 313 is fixedly connected to the surface of one side of the baffle 38, and a plurality of partition blocks 313 are fixedly connected, and the plurality of partition blocks 313 are distributed in a circular array, and the two side walls of the partition block 313 are in contact with the two blades 36, the partition block 313 can separate the two blades 36, thereby improving the stability of the blade 36, so as to increase the service life of the blade 36.

[0041] In summary, the device can not only transport gas and adjust the transport angle, but also facilitate the staff to replace the blades, so that the blades can be easily replaced when they are broken, without the need to replace the entire blade, thereby improving work efficiency.

[0042] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A PP multi-wing corrosion-resistant fan, characterized in that: include: A drive assembly (3), wherein the drive assembly (3) is used to transport gas; An installation component (2), the installation component (2) being arranged outside the driving component (3), the installation component (2) being used for performing position-limiting installation on the driving component (3); and An adjustment component (1), wherein the adjustment component (1) is arranged on the bottom surface of the mounting component (2), and the adjustment component (1) is used to provide support for the mounting component (2) and to adjust the angle of the mounting component (2).

2. The PP multi-blade corrosion-resistant fan according to claim 1 is characterized in that: The mounting assembly (2) comprises a support frame (11), and mounting grooves (12) are provided at the center and upper positions of both side walls of the inner cavity of the support frame (11), and the inner cavity of the mounting groove (12) is provided with a bearing (13), and the inner cavity of the bearing (13) is connected to the mounting assembly (2); an electric telescopic rod (14) is provided at the center position of one side of the bottom surface of the inner cavity of the support frame (11), and an arc plate (15) is provided at the output end of the electric telescopic rod (14), and the inner cavity of the arc plate (15) is connected to the mounting assembly (2).

3. A PP multi-blade corrosion-resistant fan according to claim 2, characterized in that: The mounting assembly (2) comprises a circular outer shell (21), the circular outer shell (21) being arranged in the inner cavity of the support frame (11), connecting columns (22) being inlaid and connected at the center positions on both sides of the circular outer shell (21), a limiting frame (23) being arranged in the inner cavity of the circular outer shell (21), a limiting groove (24) being provided on one side surface of the limiting frame (23), and the inner cavity of the limiting groove (24) being connected to the driving assembly (3).

4. The PP multi-blade corrosion-resistant fan according to claim 3 is characterized in that: The driving assembly (3) comprises a driving motor (31), the driving motor (31) is arranged in the inner cavity of the limiting groove (24), a rotating shaft (32) is arranged at the output end of the driving motor (31), a shaft sleeve (34) is sleeved on the rotating shaft (32), a sliding groove (35) is provided on the outer wall of the shaft sleeve (34), a plurality of the sliding grooves (35) are provided, and the plurality of the sliding grooves (35) are distributed in a circular array; The outer wall of the shaft sleeve (34) is provided with a blade (36), and the blade (36) is provided in plurality, and the plurality of blades (36) are distributed in a circumferential array, and a slider (37) is provided on the bottom surface of each blade (36), and the bottom end of each slider (37) corresponds to each slide groove (35) one by one; A baffle (38) is provided on one side surface of the shaft sleeve (34), a fixing bolt (39) is provided at a central position on one side surface of the baffle (38), an internal threaded hole (310) is provided on one side surface of the rotating shaft (32), and the bottom end of the fixing bolt (39) is rotatably connected to the inner cavity of the internal threaded hole (310).

5. The PP multi-blade corrosion-resistant fan according to claim 4 is characterized in that: A retaining ring (33) is provided on the other side of the shaft sleeve (34), and a surface on one side of the retaining ring (33) is connected to a surface on one side of the driving motor (31).

6. The PP multi-blade corrosion-resistant fan according to claim 4, characterized in that: A guide groove (311) is provided at the center of both side walls of the inner cavity of the slide groove (35), and a guide strip (312) is provided at the center of both side wall surfaces of the slide block (37), and the guide strip (312) is slidably connected to the inner cavity of the guide groove (311).

7. The PP multi-blade corrosion-resistant fan according to claim 4 is characterized in that: A partition block (313) is provided on one side surface of the baffle (38), and a plurality of the partition blocks (313) are provided. The plurality of partition blocks (313) are distributed in a circular array, and the two side walls of the partition block (313) are in contact with the two blades (36).

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