Single-phase capacitor-run asynchronous motor with easy installation

Abstract

The application relates to the technical field of single-phase capacitor-operated asynchronous motors, in particular to a single-phase capacitor-operated asynchronous motor convenient to install, which comprises a motor body, a motor base is fixedly arranged at the bottom of the motor body, a fan blade placing seat is slidably arranged on the inner wall of the motor base, an adjusting assembly is rotationally arranged in the fan blade placing seat, a lifting plate is rotationally arranged on the inner walls of the two sides of the fan blade placing seat in a symmetrical structure, a transmission assembly is arranged above the fan blade placing seat, and a fan blade maintenance assembly is arranged on the transmission assembly. When the motor body is disassembled and repaired, the fan blades of the motor body can be protected and placed by pulling out the fan blade placing seat, the fan blades are prevented from being bumped and deformed, meanwhile, the lifting plate can be rotationally connected, the fan blades are automatically lifted when the fan blade placing seat is pulled out, the fan blades are convenient to take and place, and the repair efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of single-phase capacitor-run asynchronous motor technology, and more particularly to a single-phase capacitor-run asynchronous motor that is easy to install. Background Technology

[0002] Single-phase capacitor-run asynchronous motors are the most commonly used small-power single-phase asynchronous motors. The core of them is that the auxiliary winding and the capacitor are connected in series in the circuit for a long time, which takes into account both starting and running. They are highly efficient, have a good power factor, and have a simple structure, and are widely used in household appliances and light-load equipment.

[0003] Existing single-phase capacitor-run asynchronous motors typically use the rotor to drive the fan blades for heat dissipation. When the motor needs to be disassembled for maintenance, it is not convenient to protect the fan blades. Because the fan blades made of plastic or thin metal have low strength, they are easily damaged by external impacts when placed carelessly, resulting in bending, cracking, and damage to the blades. After reassembly, problems such as large vibration, high noise, and insufficient airflow will occur, affecting the motor's heat dissipation and normal operation.

[0004] In summary, the existing technology lacks a technique for protecting the fan blades during the disassembly and maintenance of single-phase capacitor-operated asynchronous motors. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by proposing a single-phase capacitor-operated asynchronous motor that is easy to install.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a single-phase capacitor-operated asynchronous motor that is easy to install, comprising a motor body, a motor base fixedly installed at the bottom of the motor body, a fan blade placement seat slidably fitted on the inner wall of the motor base, an adjustment component rotatably connected inside the fan blade placement seat, a lifting plate rotatably connected on both sides of the inner wall of the fan blade placement seat in a symmetrical structure, a transmission component above the fan blade placement seat, and a fan blade maintenance component on the transmission component.

[0007] Preferably, the inner walls on both sides of the bottom end of the motor base are provided with sliding grooves, and a rack is fixedly connected to one end of the inner wall of the sliding groove.

[0008] Preferably, sliders are fixedly connected to both sides of the fan blade placement seat, and the sliders are slidably engaged with the inner wall of the slide groove. Springs are fixedly connected to both ends of the fan blade placement seat, and the other end of the springs is fixedly connected to the inner wall of the slide groove. A handle is fixedly connected to the outer wall of one end of the fan blade placement seat, and a drain outlet is provided through the bottom end of the inner wall of the fan blade placement seat.

[0009] Preferably, the adjustment assembly includes a limiting shaft, a fan blade is sleeved on the outer wall of the limiting shaft, the bottom end of the limiting shaft is rotatably connected to the inner wall of the bottom end of the fan blade placement seat, a worm gear is fixedly connected to the bottom end of the limiting shaft, a worm is meshed and driven on one side of the worm gear, one end of the worm is rotatably connected to the inner wall of the bottom end of the fan blade placement seat, a universal joint is fixedly connected to the other end of the worm, and a driven wheel is rotatably connected and fixedly connected to the inner wall of the fan blade placement seat.

[0010] Preferably, a driving wheel is provided on one side of the driven wheel for movable meshing transmission. The driving wheel is rotatably connected to the inner wall of the motor base via a rotating shaft, and a ratchet is fixedly connected to the rotating shaft.

[0011] Preferably, one end of the lifting plate is fixedly connected to a universal joint two, and the other end of the universal joint two extends through the inner wall of the fan blade mounting seat to the outside and is fixedly connected to a gear. The gear meshes with a rack for transmission, and one side of the lifting plate is in sliding contact with the fan blade.

[0012] Preferably, the transmission assembly includes a motor, which is fixedly connected to the inner wall of the motor base. A threaded rod is fixedly connected to the output end of the motor, and a movable frame is threadedly connected to the outer wall of the threaded rod. The top of the movable frame is in sliding contact with the inner wall of the motor base. A gear frame is fixedly connected to one side of the movable frame. Multiple ratchet teeth are rotatably connected to the inner wall of the gear frame in a linear structure. A spring is fixedly connected between the ratchet teeth and the inner wall of the gear frame. The ratchet teeth and ratchet wheel are engaged in a one-way transmission.

[0013] Preferably, the fan blade maintenance assembly includes a U-shaped scraper with its opening facing downwards. Both sides of the top of the U-shaped scraper are slidably engaged with the movable frame. Guide shafts are fixedly connected to both sides of the top of the U-shaped scraper. Guide grooves are formed on the inner walls of both sides of the top of the motor base. The guide grooves are composed of straight lines at both ends and an oblique line in the middle. One end of the guide shaft is slidably engaged with the inner wall of the guide groove. The inner walls of both sides of the U-shaped scraper are slidably in contact with the side walls of the fan blades.

[0014] Preferably, the inner walls on both sides of the U-shaped scraper are provided with limiting grooves, and the inner walls of the limiting grooves are slidably fitted with limiting blocks. A spring is fixedly connected to the limiting block, and the other end of the spring is fixedly connected to the inner wall of the limiting groove. A movable scraper is fixedly connected between the two limiting blocks, and the movable scraper is slidably in contact with one end of the fan blade.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting a fan blade placement seat inside the motor base at the bottom of the motor body, the fan blades of the motor body can be protected and placed in place when the motor body is disassembled and repaired, so as to avoid the fan blades being bumped and deformed. At the same time, with the linkage rotating lifting plate, the fan blades are automatically lifted when the fan blade placement seat is pulled out, which facilitates quick picking and placing, significantly improving the maintenance efficiency. This makes the high-efficiency heat dissipation single-phase capacitor-run asynchronous motor have the advantages of reliable protection and convenient picking and placing.

[0017] 2. By setting a transmission component and a fan blade maintenance component inside the motor base, after the fan blades disassembled during maintenance are placed in the fan blade placement seat, the transmission component can drive the fan blade maintenance component to move, and under the action of the guide groove, the fan blade maintenance component will move down, automatically scraping off the dust and other debris attached to the surface of the fan blades. While achieving safe protection and placement of the fan blades, automatic cleaning is also completed, so that the high-efficiency heat dissipation single-phase capacitor-run asynchronous motor has the advantages of proper fan blade protection, automatic cleaning and stable heat dissipation effect.

[0018] 3. By setting an adjustment component, the fan blades are synchronously driven to rotate and reposition during the process of the transmission component driving the fan blade maintenance component to reset, and the next blade is automatically sent to the working position of the fan blade maintenance component, so as to realize continuous, uniform and fully automatic cleaning of the entire circumference of the fan blades, and give this high-efficiency heat dissipation single-phase capacitor-run asynchronous motor the advantages of more thorough cleaning and no need for manual intervention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a single-phase capacitor-operated asynchronous motor that is easy to install according to the present invention.

[0020] Figure 2 This is a partial cross-sectional view of the overall structure of a single-phase capacitor-operated asynchronous motor that is easy to install according to the present invention during disassembly.

[0021] Figure 3 This is a partial cross-sectional schematic diagram of the structure of the motor base and other components of a single-phase capacitor-operated asynchronous motor that is easy to install according to the present invention.

[0022] Figure 4 This is a partial cross-sectional schematic diagram of the structure of a fan blade mounting base for a single-phase capacitor-operated asynchronous motor that is easy to install according to the present invention.

[0023] Figure 5 This is a schematic diagram of the adjustment component structure of a single-phase capacitor-operated asynchronous motor that is easy to install according to the present invention.

[0024] Figure 6 This is a schematic diagram of the lifting plate structure for a single-phase capacitor-operated asynchronous motor that is easy to install according to the present invention.

[0025] Figure 7This is a partially unfolded schematic diagram of the transmission component structure of a single-phase capacitor-operated asynchronous motor that is easy to install according to the present invention.

[0026] Figure 8 This is a schematic diagram showing the unfolded structure of a fan blade maintenance assembly for a single-phase capacitor-operated asynchronous motor that is easy to install, according to the present invention.

[0027] The diagram shows: 1. Motor body; 2. Motor base; 3. Fan blade holder; 4. Adjustment assembly; 5. Lifting plate; 6. Transmission assembly; 7. Fan blade maintenance assembly; 201. Slide groove; 202. Rack; 203. Guide groove; 301. Spring 1; 302. Handle; 303. Drain outlet; 304. Slider; 401. Limiting shaft; 402. Worm gear; 403. Worm; 404. Universal joint 1; 4 05. Driven wheel; 406. Drive wheel; 407. Ratchet; 408. Shaft; 501. Universal joint II; 502. Gear; 601. Motor; 602. Threaded rod; 603. Moving frame; 604. Gear frame; 605. Ratchet; 606. Spring II; 701. U-shaped scraper; 702. Guide shaft; 703. Limiting groove; 704. Limiting block; 705. Spring III; 706. Movable scraper block. Detailed Implementation

[0028] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0029] like Figures 1-8 The invention relates to a single-phase capacitor-driven asynchronous motor that is easy to install. The motor body 1 has a motor base 2 fixedly mounted on the bottom of the motor body 1. A fan blade placement seat 3 is slidably fitted on the inner wall of the motor base 2. An adjustment component 4 is rotatably connected inside the fan blade placement seat 3. A lifting plate 5 is rotatably connected on both sides of the inner wall of the fan blade placement seat 3 in a symmetrical structure. A transmission component 6 is provided above the fan blade placement seat 3. A fan blade maintenance component 7 is provided on the transmission component 6.

[0030] like Figure 3 As shown, the inner walls on both sides of the bottom end of the motor base 2 are provided with sliding grooves 201, and a rack 202 is fixedly connected to one end of the inner wall of the sliding groove 201.

[0031] like Figure 4 As shown, sliders 304 are fixedly connected to both sides of the fan blade placement seat 3. The sliders 304 are slidably engaged with the inner wall of the slide groove 201. Springs 301 are fixedly connected to both ends of the fan blade placement seat 3. The other end of the springs 301 is fixedly connected to the inner wall of the slide groove 201. A handle 302 is fixedly connected to the outer wall of one end of the fan blade placement seat 3. A drain port 303 is provided through the bottom of the inner wall of the fan blade placement seat 3.

[0032] Spring 301 is made of high-elasticity stainless steel. When the handle 302 is pulled to pull out the fan blade holder 3, spring 301 is stretched and generates a reverse elastic force. After the handle 302 is released, spring 301 retracts and drives the fan blade holder 3 to automatically reset. No manual pushing is required, making operation convenient and suitable for the need to quickly switch states during maintenance.

[0033] By setting a fan blade placement seat 3 inside the motor base 2 at the bottom of the motor body 1, when the motor body 1 is disassembled and repaired, the fan blades of the motor body 1 can be protected by pulling out the fan blade placement seat 3 to prevent the fan blades from being bumped and deformed. At the same time, in conjunction with the lifting plate 5 that can be linked to rotate, the fan blades are automatically lifted when the fan blade placement seat 3 is pulled out, which is convenient for quick picking and placing, significantly improving the maintenance efficiency. This makes the high-efficiency heat dissipation single-phase capacitor-run asynchronous motor have the advantages of reliable protection and convenient picking and placing.

[0034] like Figure 5 As shown, the adjustment component 4 includes a limiting shaft 401, with a fan blade sleeved on the outer wall of the limiting shaft 401. The bottom end of the limiting shaft 401 is rotatably connected to the inner wall of the bottom end of the fan blade placement seat 3. A worm gear 402 is fixedly connected to the bottom end of the limiting shaft 401. A worm 403 is meshed and driven on one side of the worm gear 402. One end of the worm 403 is rotatably connected to the inner wall of the bottom end of the fan blade placement seat 3. A universal joint 404 is fixedly connected to the other end of the worm 403. The other end of the universal joint 404 is rotatably connected to the inner wall of the fan blade placement seat 3 and a driven wheel 405 is fixedly connected to it.

[0035] The limiting shaft 401 is made of high-strength alloy material with a smooth and rust-proof surface. Its shape is precisely matched with the fan blade shaft hole, which can ensure that the fan blade does not slip after being fitted and can rotate synchronously with the limiting shaft 401.

[0036] A drive wheel 406 is provided on one side of the driven wheel 405 for active meshing transmission. The drive wheel 406 is rotatably connected to the inner wall of the motor base 2 via a rotating shaft 408. A ratchet 407 is fixedly connected to the rotating shaft 408.

[0037] like Figure 6 As shown, a universal joint 501 is fixedly connected to one end of the lifting plate 5, and a gear 502 is fixedly connected to the other end of the universal joint 501 through the inner wall of the fan blade mounting seat 3. The gear 502 meshes with the rack 202 for transmission, and one side of the lifting plate 5 is in sliding contact with the fan blade.

[0038] like Figure 7As shown, the transmission assembly 6 includes a motor 601, which is fixedly connected to the inner wall of the motor base 2. A threaded rod 602 is fixedly connected to the output end of the motor 601. A movable frame 603 is threadedly connected to the outer wall of the threaded rod 602. The top of the movable frame 603 is in sliding contact with the inner wall of the motor base 2. A gear frame 604 is fixedly connected to one side of the movable frame 603. Multiple ratchet teeth 605 are rotatably connected to the inner wall of the gear frame 604 in a linear structure. A second spring 606 is fixedly connected between the ratchet teeth 605 and the inner wall of the gear frame 604. The ratchet teeth 605 and the ratchet wheel 407 are engaged in a one-way transmission. The second spring 606 drives the ratchet teeth 605 to engage with the ratchet wheel 407 in a one-way manner.

[0039] Motor 601 is a small servo motor with stable power and adjustable speed. The moving speed of the moving frame 603 can be flexibly adjusted according to cleaning needs. Spring 606 is a high-elasticity stainless steel spring. Under normal conditions, it pushes the ratchet 605 to mesh tightly with the ratchet 407 to achieve unidirectional transmission.

[0040] like Figure 3 , Figure 8 As shown, the fan blade maintenance assembly 7 includes a U-shaped scraper 701 with its opening facing downwards. Both sides of the top of the U-shaped scraper 701 are slidably engaged with the movable frame 603. Guide shafts 702 are fixedly connected to both sides of the top of the U-shaped scraper 701. Guide grooves 203 are provided on the inner walls of both sides of the top of the motor base 2. The guide grooves 203 are composed of straight lines at both ends and a diagonal line in the middle. One end of the guide shaft 702 is slidably engaged with the inner wall of the guide groove 203. The inner walls on both sides of the U-shaped scraper 701 are slidably in contact with the side walls of the fan blades.

[0041] The U-shaped scraper 701 is made of wear-resistant engineering plastic. The opening size is adapted to the width of the fan blades. Soft wear-resistant scraper strips are provided on the inner walls of both sides, which can closely fit the side walls of the fan blades to scrape off dust and debris from the blade surface while avoiding damage to the blade surface.

[0042] Both sides of the U-shaped scraper 701 have limit grooves 703 on their inner walls. Limit blocks 704 are slidably fitted onto the inner walls of the limit grooves 703. A spring 705 is fixedly connected to each limit block 704, with the other end of the spring 705 also fixedly connected to the inner wall of the limit groove 703. A movable scraper block 706 is fixedly connected between the two limit blocks 704, and the movable scraper block 706 slides in contact with one end of the fan blade. The spring 705 allows the position of the movable scraper block 706 to be automatically adjusted according to the fan blade.

[0043] Spring 705 uses a high-elasticity stainless steel spring, which pushes the movable scraper 706 towards the fan blades under normal conditions, allowing the movable scraper 706 to fit tightly against the end face of the fan blades, scraping away dust and debris and increasing the cleaning range. The movable scraper 706 is made of soft, wear-resistant rubber with an anti-slip surface treatment, ensuring cleaning effectiveness while preventing damage to the fan blades.

[0044] By automatically cleaning and effectively protecting the fan blades, the motor body 1 is kept in a state of high-efficiency heat dissipation for a long time, reducing the temperature rise and loss of the windings, significantly improving the operating efficiency of the motor body 1, and enabling the single-phase capacitor-run asynchronous motor to have better energy-saving effect, which meets the design and use requirements of high-efficiency energy-saving motors.

[0045] Working principle: When the motor body 1 needs to be disassembled and repaired, the operator holds the handle 302 of the fan blade placement seat 3 and pulls the fan blade placement seat 3 outward. The sliders 304 on both sides of the fan blade placement seat 3 slide along the slide groove 201 of the motor seat 2, and the spring 1 301 is stretched, generating a reverse elastic force. At the same time, the gear 502 at one end of the lifting plate 5 meshes with the rack 202 in the slide groove 201. As the fan blade placement seat 3 moves, the gear 502 rolls along the rack 202, driving the universal joint 2 501 to rotate, which in turn drives the lifting plate 5 to rotate around the rotation axis of the inner wall of the fan blade placement seat 3. The lifting plate 5 gradually lifts upward. When the fan blade placement seat 3 is pulled out to the designated position, the lifting plate 5 rotates to the appropriate angle and is in the lifting state. At this time, the driven wheel 405 of the adjusting component 4 moves with the fan blade placement seat 3 and disengages from the driving wheel 406 to avoid interfering with the picking and putting of the fan blades.

[0046] Disassemble the fan blades of the motor body 1 and place them on the limiting shaft 401 of the adjusting component 4. The limiting shaft 401 is precisely matched with the fan blade shaft hole to ensure stable placement of the fan blades. Release the handle 302, and the spring 301 retracts, causing the fan blade placement seat 3 to automatically reset. The fan blades move synchronously with the placement seat. During the reset process, the gear 502 rolls in the opposite direction along the rack 202, causing the lifting plate 5 to rotate in the opposite direction and gradually reset to the inner wall of the fan blade placement seat 3. The fan blades are placed stably in the placement seat, achieving protective placement of the fan blades and avoiding collisions and deformation. At the same time, the driven wheel 405 resets with the placement seat and re-engages with the driving wheel 406, preparing for subsequent cleaning and rotation repositioning.

[0047] The motor 601 of the transmission assembly 6 is started, which drives the threaded rod 602 to rotate. The threaded rod 602 drives the moving frame 603 to move forward along the inner wall of the motor base 2. The moving frame 603 drives the fan blade maintenance assembly 7 and the gear frame 604 to move synchronously. The guide shaft 702 of the fan blade maintenance assembly 7 slides along the guide groove 203 of the motor base 2. When the guide shaft 702 enters the inclined section of the guide groove 203, under the guidance of the inclined line, the U-shaped scraper 701 slides downward along the moving frame 603. The two sides of the U-shaped scraper 701 are in contact with the side wall of the fan blade. At the same time, the movable scraper 706 is in contact with the end face of the fan blade under the action of the spring 705. As the moving frame 603 moves, the U-shaped scraper 701 and the movable scraper 706 scrape the dust and debris on the surface of the fan blade synchronously. The scraped debris is discharged through the drain port 303 at the bottom of the fan blade placement seat 3 to avoid accumulation.

[0048] Once the current blade of the fan is cleaned, the control motor 601 rotates in the reverse direction, causing the threaded rod 602 to rotate in the reverse direction. The moving frame 603 resets in the reverse direction, causing the fan blade maintenance assembly 7 and the gear frame 604 to reset synchronously. At this time, the ratchet 605 in the gear frame 604, under the action of the second spring 606, engages with the ratchet 407 in one direction, causing the rotating shaft 408 and the driving wheel 406 to rotate. The driving wheel 406 engages and drives the driven wheel 405 to rotate. The driven wheel 405 drives the worm gear 403 to rotate through the universal joint 404. The worm gear 403 engages and drives the worm wheel 402 and the limit shaft 401 to rotate. The limit shaft 401 drives the fan blade to rotate and change position, automatically sending the next uncleaned blade to the working position of the fan blade maintenance assembly 7.

[0049] Once all the blades around the fan are cleaned, turn off the motor 601, grasp the handle 302 again, pull out the fan blade holder 3, and the lifting plate 5 will automatically lift the fan blades. The staff will then remove the cleaned fan blades and reinstall them onto the motor body 1 to complete the maintenance.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A single-phase capacitor-run asynchronous motor that is easy to install, comprising a motor body (1), characterized in that: The motor body (1) is fixedly mounted with a motor base (2) at the bottom. A fan blade placement seat (3) is slidably fitted on the inner wall of the motor base (2). An adjustment component (4) is rotatably connected inside the fan blade placement seat (3). A lifting plate (5) is rotatably connected to the inner walls on both sides of the fan blade placement seat (3). A transmission component (6) is provided above the fan blade placement seat (3). A fan blade maintenance component (7) is provided on the transmission component (6). The adjustment component (4) includes a limiting shaft (401). A fan blade is sleeved on the outer wall of the limiting shaft (401). The bottom end of the limiting shaft (401) is rotatably connected to the inner wall of the bottom end of the fan blade placement seat (3). A worm gear (402) is fixedly connected to the bottom end of the fan blade holder (3). A worm (403) is meshed and driven on one side of the worm gear (402). One end of the worm (403) is rotatably connected to the inner wall of the bottom end of the fan blade holder (3). A universal joint (404) is fixedly connected to the other end of the worm (403). A driven wheel (405) is rotatably connected to the inner wall of the fan blade holder (3) and fixedly connected to the other end of the universal joint (404). A driving wheel (406) is movably meshed and driven on one side of the driven wheel (405). The driving wheel (406) is rotatably connected to the inner wall of the motor base (2) through a rotating shaft (408). A ratchet is fixedly connected to the rotating shaft (408). (407), the transmission assembly (6) includes a motor (601), the motor (601) is fixedly connected to the inner wall of the motor base (2), a threaded rod (602) is fixedly connected to the output end of the motor (601), a movable frame (603) is threadedly connected to the outer wall of the threaded rod (602), the top of the movable frame (603) is slidably in contact with the inner wall of the motor base (2), a gear frame (604) is fixedly connected to one side of the movable frame (603), a plurality of ratchet teeth (605) are rotatably connected to the inner wall of the gear frame (604) in a linear structure, and a spring (606) is fixedly connected between the ratchet teeth (605) and the inner wall of the gear frame (604). 605) is configured to engage with ratchet (407) in a one-way transmission. The fan blade maintenance assembly (7) includes a U-shaped scraper (701) with its opening facing downward. Both sides of the top of the U-shaped scraper (701) are slidably engaged with the moving frame (603). Both sides of the top of the U-shaped scraper (701) are fixedly connected with guide shafts (702). The inner walls of both sides of the top of the motor base (2) are provided with guide grooves (203). The guide grooves (203) are composed of straight lines at both ends and a diagonal line in the middle. One end of the guide shaft (702) is slidably engaged with the inner wall of the guide groove (203). The inner walls of both sides of the U-shaped scraper (701) are slidably in contact with the side walls of the fan blades.

2. The easy-to-install single-phase capacitor-run asynchronous motor according to claim 1, characterized in that: The motor base (2) has a sliding groove (201) on both sides of the bottom inner wall, and a rack (202) is fixedly connected to one end of the sliding groove (201).

3. A single-phase capacitor-run asynchronous motor that is easy to install according to claim 1, characterized in that: The fan blade placement seat (3) is fixedly connected to both sides with sliders (304), the sliders (304) are slidably engaged with the inner wall of the slide groove (201), the fan blade placement seat (3) is fixedly connected to both ends with springs (301), the other end of the springs (301) is fixedly connected to the inner wall of the slide groove (201), the outer wall of one end of the fan blade placement seat (3) is fixedly connected with a handle (302), and the bottom of the inner wall of the fan blade placement seat (3) is provided with a drain outlet (303).

4. A single-phase capacitor-run asynchronous motor that is easy to install according to claim 2, characterized in that: One end of the lifting plate (5) is fixedly connected to a universal joint two (501), and the other end of the universal joint two (501) extends through the inner wall of the fan blade placement seat (3) to the outside and is fixedly connected to a gear (502). The gear (502) meshes with the rack (202) for transmission, and one side of the lifting plate (5) is in sliding contact with the fan blade.

5. A single-phase capacitor-run asynchronous motor that is easy to install according to claim 1, characterized in that: The U-shaped scraper (701) has limit grooves (703) on both inner walls. Limit blocks (704) are slidably fitted on the inner walls of the limit grooves (703). A spring (705) is fixedly connected to the limit block (704). The other end of the spring (705) is fixedly connected to the inner wall of the limit groove (703). A movable scraper block (706) is fixedly connected between the two limit blocks (704). The movable scraper block (706) is slidably contacted with one end of the fan blade.

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