A fan

Abstract

The present invention relates to a fan, belonging to the technical field of fans, the fan comprises a frame, a shroud and a first motor, the shroud is rotatably mounted on the frame, the first motor is mounted in the frame and the shaft of the first motor is connected to the shroud to drive the shroud to swing; it also comprises a blade assembly and a second motor, the second motor is also mounted in the frame, the blade assembly is arranged in the shroud and one end of the blade assembly is connected to the shaft of the second motor, a bearing seat is mounted on the side wall of the shroud, a bearing is mounted on the bearing seat, and the other end of the blade assembly is interference connected to the bearing; the bearing seat is a structural member made of hard elastic material. Through the above structure, in the fan provided by the present invention, the bearing seat has the effect of shock absorption and noise reduction as well as centering the rotation of the blade assembly, and no additional installation components are required to achieve the above functions, the structure is simpler, the parts are fewer, and the cost is lower.

Description

Technical Field

[0001] The invention belongs to the technical field of fans, and in particular relates to a fan. Background Art

[0002] The fan in the prior art usually includes a fan blade assembly and a guide cover. The fan blade assembly is driven to rotate by a motor, and the fan blade assembly is arranged inside the guide cover. When the fan blade assembly rotates, it can generate wind, and the wind is blown out after being guided by the guide cover.

[0003] One end of the existing fan blade assembly is rigidly connected to the motor, while the other end is rotatably inserted into the side wall of the air deflector and transmitted through a bearing. A wave spring is arranged between the bearing and the side wall of the air deflector. The buffering effect of the wave spring is utilized to achieve the effect of automatic centering, shock absorption and noise reduction when the fan assembly rotates. However, since the wave spring is an independent structure, this structure will cause the fan to have the disadvantages of many parts, complicated assembly process and higher cost. Summary of the invention

[0004] The present invention provides a fan, which is used to solve the technical problems of the fan in the prior art having many parts, complicated assembly process and high cost.

[0005] The present invention is implemented by the following technical scheme: a fan comprises a frame, a deflector and a first motor, wherein the deflector is rotatably mounted on the frame, the first motor is mounted in the frame and the rotating shaft of the first motor is connected to the deflector to drive the deflector to swing;

[0006] It also includes a fan blade assembly and a second motor, the second motor is also installed in the frame, the fan blade assembly is arranged in the air guide cover and one end of the fan blade assembly is connected to the rotating shaft of the second motor, a bearing seat is installed on the side wall of the air guide cover, a bearing is installed on the bearing seat, and the other end of the fan blade assembly is interference connected to the bearing;

[0007] The bearing seat is a structural component made of hard elastic material.

[0008] Further, in order to better realize the present invention, the deflector includes a first deflector plate, a second deflector plate, a left plate and a right plate, one end of the first deflector plate and one end of the second deflector plate are both connected to the left plate, the other end of the second deflector plate and the other end of the second deflector plate are both connected to the right plate, and the first deflector plate and the second deflector plate are spaced apart;

[0009] The second motor is located on the left side of the air duct, and the bearing seat is installed on the right side plate.

[0010] Further, in order to better realize the present invention, it also includes a first L-shaped plate, a second L-shaped plate and a connecting plate, the first L-shaped plate and the second L-shaped plate are arranged in a direction away from each other and the first L-shaped plate and the second L-shaped plate are respectively connected to the two ends of the connecting plate, the first L-shaped plate is detachably fixed to the right side plate by a first screw, the right side plate is also provided with a column, the end of the column away from the right side plate is provided with a baffle, the second L-shaped plate is provided with a slot, the column is inserted in the slot and the second L-shaped plate is clamped between the baffle and the right side plate;

[0011] The connecting plate is provided with a mounting through hole, and the bearing seat is clamped in the mounting through hole.

[0012] Furthermore, in order to better implement the present invention, the left side plate and the right side plate are both provided with sockets, and both ends of the first guide plate and the second guide plate are provided with thin-sheet plug-ins, the thin-sheet plug-in at one end of the first guide plate and the thin-sheet plug-in at one end of the second guide plate are respectively snapped into the corresponding sockets on the left side plate, and the thin-sheet plug-in at the other end of the second guide plate and the thin-sheet plug-in at the other end of the second guide plate are respectively snapped into the corresponding sockets on the right side plate.

[0013] Further, in order to better realize the present invention, it also includes a crank-connecting rod mechanism, a mounting plate and a first sleeve, one end of the crank-connecting rod mechanism is connected to the rotating shaft of the first motor, the other end of the crank-connecting rod mechanism is provided with a round rod, the mounting plate is detachably fixed to the left side plate by a second screw and a spherical hole is provided on the mounting plate, the first sleeve is installed in the spherical hole and the outer wall of the first sleeve is a spherical surface adapted to the spherical hole, and the round rod is inserted into the first sleeve;

[0014] It also includes an anti-dropping piece, which is installed on the round rod to prevent the round rod from falling out of the first sleeve.

[0015] Furthermore, in order to better implement the present invention, the anti-dropping member is a pine needle, and a pin hole is provided on the end of the round rod away from the crank-connecting rod mechanism, and the pine needle is inserted into the pin hole.

[0016] Furthermore, in order to better implement the present invention, the mounting plate is a structural component made of nylon, and the first sleeve is a structural component made of powder metallurgy material.

[0017] Furthermore, in order to better realize the present invention, a seat body is installed on the right side of the frame, an outer sleeve is provided on the seat body, a plate is detachably fixedly installed on the right end surface of the right side plate by a third screw, a round shaft is provided on the right end surface of the plate, and also includes a second sleeve, the second sleeve is installed in the outer sleeve, the inner hole of the outer sleeve is also a spherical hole, and the outer wall of the second sleeve is a spherical surface adapted to the spherical hole.

[0018] Furthermore, in order to better implement the present invention, the outer sleeve is a structural component made of metal, and the second sleeve is a structural component made of powder metallurgy material.

[0019] Furthermore, in order to better realize the present invention, it also includes a third L-shaped plate, the first motor is installed in the third L-shaped plate and the rotating shaft of the first motor passes through one side plate surface of the third L-shaped plate, and the other side plate surface of the third L-shaped plate is provided with a screw hole, and also includes a fourth screw, and the frame is provided with a waist-shaped hole with the length direction being the left and right direction, and the fourth screw passes through the waist-shaped hole and is screwed into the screw hole.

[0020] Furthermore, in order to better realize the present invention, it also includes a disinfection and sterilization device for disinfecting and sterilizing wind, the air deflector is provided with an air inlet and an air outlet, and the disinfection and sterilization device is installed on the frame and / or at the air inlet and / or at the air outlet.

[0021] Furthermore, in order to better implement the present invention, the disinfection and sterilization device is an ultraviolet lamp or an ion generator.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The fan provided by the present invention has a shroud installed on a rotating frame and driven to swing by a first motor, a blade assembly installed in the shroud and driven to rotate by a second motor, a bearing seat installed on the side wall of the shroud, a bearing installed on the bearing seat, and the blade assembly is rotatably installed in the shroud through the bearing, and the bearing seat is a structural member made of hard rubber. Since the hard rubber has a certain elasticity, the bearing seat can play a role in aligning the eccentricity of the blade assembly during rotation, and the bearing seat can also have the advantages of shock absorption and noise reduction. In addition, by adopting the above structure, the fan provided by the present invention does not need to set additional components to reduce noise, shock and align the rotation of the blade assembly, so the fan also has the advantages of fewer components, simpler assembly process and lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 is a schematic structural diagram of a fan in an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 The schematic diagram of the structure shown is a schematic diagram of the structure when the second motor is not drawn;

[0027] Figure 3 yes Figure 2 Another view of the structure shown;

[0028] Figure 4 yes Figure 3 A local enlarged view of region A in the structure shown;

[0029] Figure 5 is an exploded view of a structure formed when a crank-connecting rod mechanism and a mounting plate are connected in an embodiment of the present invention;

[0030] Figure 6 is a schematic structural diagram of a first shaft sleeve in an embodiment of the present invention;

[0031] Figure 7 It is an exploded view of the structure formed when the right side plate, the bearing and the seat body are connected in the embodiment of the present invention;

[0032] Figure 8 yes Figure 7 Another view of the structure shown;

[0033] Fig. 9 It is a schematic diagram of the structure of the fan in Example 8 of the present invention.

[0034] In the figure:

[0035] 1-frame; 101-waist-shaped hole; 2-air deflector; 201-first deflector plate; 202-second deflector plate; 203-left side plate; 204-right side plate; 3-first motor; 4-blade assembly; 5-second motor; 6-bearing seat; 7-bearing; 8-first L-shaped plate; 9-second L-shaped plate; 10-connecting plate; 11-first screw; 12-column; 13-baffle; 14-thin sheet insert; 15-crank-connecting rod mechanism; 16-mounting plate; 17-first bushing; 18-round rod; 19-second screw; 20-pine needle; 21-seat body; 22-outer sleeve; 23-third screw; 24-plate; 25-round shaft; 26-second bushing; 27-third L-shaped plate; 28-fourth screw; 29-disinfection and sterilization device. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] The present embodiment provides a fan, which includes a frame 1, a shroud 2, a first motor 3, a blade assembly 4 and a second motor 5, wherein the first motor 3, the second motor 5 and the shroud 2 are all installed on the frame 1, and the connection between the shroud 2 and the frame 1 is a rotating connection, and the shroud 2 is connected to the rotating shaft of the first motor 3, so that the first motor 3 can drive the shroud 2 to swing, and the blade assembly 4 is arranged inside the shroud 2, and the rotating shaft of the second motor 5 is connected to the blade assembly 4. When the second motor 5 is powered on, it will rotate inside the shroud 2 to generate wind, and the wind will flow out of the fan after being guided by the shroud 2.

[0039] Specifically, a bearing seat 6 is installed on the side wall of the above-mentioned air deflector 2, and a bearing 7 is installed on the bearing seat 6. One end of the fan blade assembly 4 is linked to the rotating shaft of the above-mentioned second motor 5, and the other end of the fan blade assembly 4 is interference connected in the inner hole of the above-mentioned bearing 7. In this way, the fan blade assembly 4 can rotate smoothly in the air deflector 2.

[0040] The bearing seat 6 in this embodiment is a structural member made of a hard elastic material. It is worth noting that the hard elastic material in this embodiment is hard rubber or hard nylon. Since hard rubber has good elasticity and good shock absorption and noise reduction effects, the bearing seat 6 made of hard rubber can well absorb the vibration and noise generated during the rotation of the blade assembly 4, and the bearing seat 6 can also align the eccentricity generated during the rotation of the blade assembly 4, so that the blade assembly 4 can rotate better and more smoothly in the air guide cover 2. In addition, since the bearing seat 6 itself has the effects of aligning, noise reduction and shock absorption, the fan provided in this embodiment does not require an additional installation structure (such as a wave spring) to align, reduce noise and shock the rotation of the blade assembly 4, compared with such fans in the prior art, so it has the advantages of fewer parts, simpler assembly process and lower cost.

[0041] Embodiment 2:

[0042] This embodiment is a specific implementation of embodiment 1. In this embodiment, the above-mentioned air guide cover 2 includes a first air guide plate 201, a second air guide plate 202, a left plate 203 and a right plate 204, wherein one end of the first air guide plate 201 and one end of the second air guide plate 202 are both connected to the left plate 203, and the other end of the first air guide plate 201 and the other end of the second air guide plate 202 are both connected to the right plate 204, that is, the first air guide plate 201 and the second air guide plate 202 are both connected between the left plate 203 and the right plate 204, and the first air guide plate 201 and the second air guide plate 202 are arranged at intervals. The wind generated when the fan blade assembly 4 rotates is blown out from the gap between the first air guide plate 201 and the second air guide plate 202. When the first motor 3 drives the air guide cover 2 to swing as a whole, the above-mentioned gap rotates, thereby controlling the wind direction of the blown wind.

[0043] The second motor 5 is mounted on the frame 1 and is located on the left side of the air deflector 2. Specifically, the shaft of the second motor 5 passes through the left side plate 203 and extends into the interior of the air deflector 2 and is keyed to one end of the fan blade assembly 4, that is, the shaft of the second motor 5 is linked to one end of the fan blade assembly 4. When the second motor 5 is running, it can drive the fan blade assembly 4 to rotate. A bearing mounting seat is installed on the left side surface of the left side plate 203, and a rotating bearing is installed inside the bearing mounting seat. The shaft of the second motor 5 is connected to the rotating bearing. The bearing seat 6 shown in Example 1 is installed on the right side plate 204. In this way, it is actually equivalent to providing bearings 7 at both ends of the fan blade assembly 4, so that the rotation of the fan blade assembly 4 is smoother.

[0044] Embodiment 3:

[0045] This embodiment is a specific implementation of the embodiment. The fan provided by this embodiment also includes a first L-shaped plate 8, a second L-shaped plate 9 and a connecting plate 10, wherein the first L-shaped plate 8 and the second L-shaped plate 9 are arranged in a back-to-back manner, and the connecting plate 10 is a flat plate, which is connected between the first L-shaped plate 8 and the second L-shaped plate 9. At this time, the first L-shaped plate 8, the connecting plate 10 and the second L-shaped plate 9 form a plate-like structure with a middle protrusion. The first L-shaped plate 8 is detachably fixedly connected to the left side wall of the right side plate 204 by a first screw 11. In addition, a column 12 is also provided on the left side wall of the right side plate 204. The column 12 protrudes to the left of the left side wall of the right side plate 204, and a baffle 13 is provided at one end of the column 12 away from the right side plate 204. A slot is provided on the second L-shaped plate 9. During installation, the column 12 is inserted into the slot. At this time, the second L-shaped plate 9 is clamped between the baffle 13 and the right side plate 204.

[0046] A mounting through hole extending from left to right is provided in the middle section of the connecting plate 10. The bearing seat 6 is a structure adapted to the mounting through hole. During installation, the bearing seat 6 is clamped in the mounting through hole. More preferably, in order to prevent the bearing seat 6 from being offset in the mounting through hole, an annular groove is provided on the outer wall of the bearing seat 6, and the side wall of the mounting through hole is clamped in the annular groove.

[0047] With this structure, on the fan provided in this embodiment, the bearing seat 6 can be quickly disassembled and assembled from the right side plate 204, and the cooperation between the slot and the column 12 can provide positioning and limiting during assembly, so as to facilitate installation.

[0048] Embodiment 4:

[0049] This embodiment is a specific implementation of the above embodiment. In this embodiment, a plurality of plug holes are provided on the left side plate 203 and the right side plate 204, and a plurality of thin sheet plug blocks 14 are provided at both ends of the first guide plate 201 and the second guide plate 202. The thin sheet plug blocks 14 can be bent under the action of sufficient external force.

[0050] The thin sheet plug 14 at one end of the first guide plate 201 and the thin sheet plug 14 at one end of the second guide plate 202 are respectively inserted into the corresponding plug holes on the left side plate 203, and then the thin sheet plug 14 is bent by external force, so that one end of the first guide plate 201 and one end of the second guide plate 202 are both clamped on the left side plate 203, and the thin sheet plug 14 at the other end of the first guide plate 201 and the thin sheet plug 14 at the other end of the second guide plate 202 are respectively inserted into the corresponding plug holes on the right side plate 204, and then the thin sheet plug 14 is bent by external force, so that the other end of the first guide plate 201 and the other end of the second guide plate 202 are both clamped on the right side plate 204.

[0051] By adopting the above structure, the first guide plate 201 and the second guide plate 202 in this embodiment can be firmly installed on the left plate 203 and the right plate 204, and no additional mounting structure is used, thereby making the fan structure provided by this embodiment simpler, with fewer parts and lower cost.

[0052] Embodiment 5:

[0053] This embodiment is a better implementation of the above embodiment. The fan provided by this embodiment also includes a crank-connecting rod mechanism 15, a mounting plate 16 and a first sleeve 17, wherein the crank-connecting rod mechanism 15 is composed of a first rod and a second rod, and the first rod and the second rod are hinged together to form an L-shaped structure, one end of the crank-connecting rod mechanism 15 (the end of the first rod away from the second rod) is connected to and fixed to the rotating shaft of the first motor 3, and the other end of the crank-connecting rod mechanism 15 (the end of the second rod away from the first rod) is provided with a round rod 18.

[0054] The above-mentioned mounting plate 16 is detachably fixedly connected to the left side plate 203 by a second screw 19, and a spherical hole is provided at the center position of the mounting plate 16. The first sleeve 17 is installed in the spherical hole, and the outer wall of the first sleeve 17 is a spherical surface adapted to the above-mentioned spherical hole. The above-mentioned round rod 18 is inserted into the first sleeve 17, and an anti-dropping part is also installed on the round rod 18. The function of the anti-dropping part can prevent the round rod 18 from falling off from the above-mentioned first sleeve 17.

[0055] Through the interaction between the spherical hole and the spherical surface, when the round rod 18 is biased relative to the left side plate 203, the round rod 18 and the first sleeve 17 can be automatically aligned through the spherical hole and the spherical surface, so that the crank-connecting rod mechanism 15 can drive the fairing 2 to swing more smoothly.

[0056] As a specific implementation of this embodiment, the anti-dropping member in this embodiment is a pine needle 20, and a pin hole is provided on the end of the round rod 18 away from the crank connecting rod mechanism 15, and the pine needle 20 is inserted into the pin hole. The pine needle 20 can be used to form a barrier, thereby preventing the round rod 18 from falling off the mounting plate 16. Of course, the pine needle 20 can also be replaced by a pin.

[0057] As an optimal implementation method of this embodiment, the mounting plate 16 in this embodiment is a structural part made of nylon, and the above-mentioned first sleeve 17 is a structural part made of powder metallurgy material. In this way, since the powder metallurgy material has a self-lubricating effect, there is no need to add lubricant between the first sleeve 17 and the spherical hole. Moreover, since the mounting plate 16 is a structural part made of nylon, the friction between the hole wall of the spherical hole and the first sleeve 17 will not cause damage to the first sleeve 17, and due to the elasticity of the nylon material, the gap between the hole wall of the spherical hole and the outer wall of the first sleeve 17 will be smaller. In this way, large particles of impurities will not enter between the spherical hole and the first sleeve 17, thereby further reducing wear and making the service life of the above-mentioned structure longer.

[0058] Embodiment 6:

[0059] This embodiment is a better implementation of Embodiment 5. In this embodiment, a seat body 21 is installed on the right side of the above-mentioned frame 1, and an outer sleeve 22 is provided on the seat body 21. Specifically, a through hole passing through the seat body 21 is provided, and a gear coaxial with the outer sleeve 22 is provided on the outer wall of one end of the outer sleeve 22, and the gear is inserted in the above-mentioned through hole with interference fit.

[0060] A plate 24 is detachably fixedly mounted on the right end surface of the right side plate 204 by a third screw 23, and a round shaft 25 is provided on the right end surface of the plate 24. The round shaft 25 is interference fit in the second sleeve 26, and the second sleeve 26 is inserted in the outer sleeve 22. Optimally, the inner hole of the outer sleeve 22 is also a spherical hole, and the outer wall of the second sleeve 26 is a spherical surface that matches the spherical hole. In this way, the second sleeve 26 can rotate in the outer sleeve 22, thereby aligning the rotation of the right side plate 204 and the air duct 2, so that the rotation (swing) of the air duct 2 is smoother.

[0061] As an optimal implementation mode of this embodiment, the outer sleeve 22 in this embodiment is a structural part made of metal, and the second sleeve 26 is a structural part made of powder metallurgy material, so that the wear between the second sleeve 26 and the outer sleeve 22 is small, thereby extending the service life of the above structure.

[0062] Embodiment 7:

[0063] This embodiment is a specific implementation of the above embodiment. The fan provided by this embodiment also includes a third L-shaped plate 27, and the third L-shaped plate 27 is used to install the first motor 3. Specifically, the first motor 3 is detachably fixed to one side plate surface of the third L-shaped plate 27 by bolts and is located inside the third L-shaped plate 27, and the rotating shaft of the first motor 3 passes through the plate surface of the third L-shaped plate 27, and a screw hole is provided on the other side plate surface of the third L-shaped plate 27. A waist-shaped hole 101 with a length direction in the left and right direction is provided on the side wall of the frame 1. The fourth screw 28 passes through the waist-shaped hole 101 and is screwed into the screw hole, thereby achieving the purpose of installing the third L-shaped plate 27 on the frame 1, and then installing the first motor 3 on the frame 1.

[0064] With this structure, the installation position of the third L-shaped plate 27 can be adjusted in the left-right direction as needed, thereby adjusting the installation position of the first motor 3 in the left-right direction and adjusting the installation position of the air deflector 2 in the frame 1.

[0065] Embodiment 8:

[0066] This embodiment is a better implementation of the above embodiment. The fan provided by this embodiment also includes a disinfection and sterilization device 29, which can disinfect and sterilize the wind of the fan. The above-mentioned air guide hood 2 is provided with an air inlet and an air outlet. The wind enters the air guide hood 2 from the air inlet and flows out of the air guide hood 2 from the air outlet. The above-mentioned disinfection and sterilization device 29 is installed on the above-mentioned frame 1 and / or at the air inlet and / or at the air outlet, so that the wind finally blown out by the fan provided by this embodiment is more hygienic and healthy.

[0067] As an optimal implementation mode of this embodiment, the disinfection and sterilization device 29 in this embodiment is an ultraviolet lamp. When the ultraviolet lamp is powered on, it will emit ultraviolet light to disinfect and sterilize the wind. Of course, the disinfection and sterilization device 29 can also be an ion generator. In addition, the above-mentioned disinfection and sterilization device 29 can also be replaced by a photocatalyst coating.

[0068] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A fan, characterized in that: It comprises a frame, a deflector and a first motor, wherein the deflector is rotatably mounted on the frame, the first motor is mounted in the frame and the rotating shaft of the first motor is connected to the deflector to drive the deflector to swing; It also includes a fan blade assembly and a second motor, the second motor is also installed in the frame, the fan blade assembly is arranged in the air guide cover and one end of the fan blade assembly is connected to the rotating shaft of the second motor, a bearing seat is installed on the side wall of the air guide cover, a bearing is installed on the bearing seat, and the other end of the fan blade assembly is interference connected to the bearing; The bearing seat is a structural member made of hard elastic material; The deflector comprises a first deflector plate, a second deflector plate, a left side plate and a right side plate, one end of the first deflector plate and one end of the second deflector plate are both connected to the left side plate, the other end of the second deflector plate and the other end of the second deflector plate are both connected to the right side plate, and the first deflector plate and the second deflector plate are spaced apart; The second motor is located on the left side of the air deflector, and the bearing seat is installed on the right side plate; The invention also includes a first L-shaped plate, a second L-shaped plate and a connecting plate, wherein the first L-shaped plate and the second L-shaped plate are arranged in a direction away from each other and the first L-shaped plate and the second L-shaped plate are respectively connected to two ends of the connecting plate, the first L-shaped plate is detachably fixed to the right side plate by a first screw, the right side plate is also provided with a column, an end of the column away from the right side plate is provided with a baffle, the second L-shaped plate is provided with a slot, the column is inserted in the slot and the second L-shaped plate is sandwiched between the baffle and the right side plate; The connecting plate is provided with a mounting through hole, and the bearing seat is clamped in the mounting through hole; Also included is a disinfection and sterilization device for disinfecting and sterilizing the wind.

2. A fan according to claim 1, characterized in that: Both the left side plate and the right side plate are provided with plug holes, and both ends of the first guide plate and the second guide plate are provided with thin sheet plug blocks, the thin sheet plug block at one end of the first guide plate and the thin sheet plug block at one end of the second guide plate are respectively snapped into the corresponding plug holes on the left side plate, and the thin sheet plug block at the other end of the second guide plate and the thin sheet plug block at the other end of the second guide plate are respectively snapped into the corresponding plug holes on the right side plate.

3. A fan according to any one of claims 1-2, characterized in that: It also includes a crank-connecting rod mechanism, a mounting plate and a first sleeve, one end of the crank-connecting rod mechanism is connected to the rotating shaft of the first motor, the other end of the crank-connecting rod mechanism is provided with a round rod, the mounting plate is detachably fixed to the left side plate by a second screw and a spherical hole is provided on the mounting plate, the first sleeve is installed in the spherical hole and the outer wall of the first sleeve is a spherical surface adapted to the spherical hole, and the round rod is inserted into the first sleeve; It also includes an anti-dropping piece, which is installed on the round rod to prevent the round rod from falling out of the first sleeve.

4. A fan according to claim 3, characterized in that: The anti-dropping member is a pine needle, and a pin hole is provided on one end of the round rod away from the crank-connecting rod mechanism, and the pine needle is inserted into the pin hole.

5. A fan according to claim 3, characterized in that: A seat body is installed on the right side of the frame, and an outer sleeve is provided on the seat body. A plate is detachably fixedly installed on the right end surface of the right side plate by a third screw. A round shaft is provided on the right end surface of the plate, and also includes a second sleeve. The second sleeve is installed in the outer sleeve. The inner hole of the outer sleeve is also a spherical hole, and the outer wall of the second sleeve is a spherical surface that matches the spherical hole.

6. A fan according to claim 3, characterized in that: It also includes a third L-shaped plate, the first motor is installed in the third L-shaped plate and the rotating shaft of the first motor passes through one side plate surface of the third L-shaped plate, the other side plate surface of the third L-shaped plate is provided with a screw hole, and also includes a fourth screw, the frame is provided with a waist-shaped hole with a length direction in the left and right direction, and the fourth screw passes through the waist-shaped hole and is screwed into the screw hole.

7. A fan according to any one of claims 4 to 6, characterized in that: The air deflector is provided with an air inlet and an air outlet, and the disinfection and sterilization device is installed on the frame and / or at the air inlet and / or at the air outlet.

8. A fan according to claim 7, characterized in that: The disinfection and sterilization device is an ultraviolet lamp or an ion generator.

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