Motor inlet air filtering mechanism

Abstract

The invention discloses a motor inlet air filtering mechanism, and relates to the technical field of motors, the motor inlet air filtering mechanism comprises a motor main body and a rotor arranged on the right side of the motor main body, the right side of the motor main body is provided with an air inlet cover, the right side of the air inlet cover is fixedly connected with a fixed box, and the right side of the fixed box is provided with two air inlet holes; a filter unit for filtering dust in airflow is arranged on the inner side of the fixed box, the filter unit comprises two air inlet cylinders, the two air inlet cylinders are fixedly connected to the inner side of the fixed box, a filter cover is arranged on the left sides of the air inlet cylinders, and a replacement assembly is arranged on the outer side of the filter cover. According to the motor inlet air filtering mechanism, by arranging the rotor, the curved groove, the contact rod, the first reciprocating plate, the pressing plate, the contact plate, the first spring, the second reciprocating plate, the toothed plate, the impact block and the metal plate, when the filtering cover is blocked, the impact block is controlled to repeatedly impact the metal plate, sticky dust on the filtering cover falls off, and the cleaning effect is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electric machines, in particular to an electric machine air inlet filtering mechanism. BACKGROUND

[0002] The climbing motor of a treadmill is a core component for driving the slope adjustment of a running belt, and the performance of the climbing motor directly affects the climbing fluency, stability and user experience of the treadmill. When the climbing motor is in use, a filtering mechanism needs to be arranged at an air inlet to facilitate filtering operation on the entering airflow.

[0003] According to the search, the application No. CN202311041536.3 is an electric machine air inlet filtering mechanism, which comprises an electric machine body and a filter cylinder mounted at the end of the electric machine body. When the filter screen is blocked by dust, the temperature in the electric machine body and the entire filter cylinder will rise as a whole, at which time the air bag in the air bag box filled with heat-sensitive gas will expand, and the transmission shaft a and the transmission shaft b at both ends of the support plate are driven by the top rod through the bevel gears to mesh with the bevel gears of the driving shaft and the driven shaft.

[0004] The above-mentioned patent can quickly replace the filter screen and avoid the filter screen being blocked by dust. However, after filtering the dust, the dust is cleaned by the scraper in contact with the filter screen. After long-term use of the treadmill, the salt in the sweat and sebum of people are easy to adsorb the dust, form sticky dirt, and make part of the dust with high adhesion block the filter screen, which is not easy to clean. Moreover, when the entire filter screen is blocked by dust, the shell needs to be disassembled for replacement, which is troublesome. SUMMARY

[0005] In view of the deficiencies of the prior art, the application provides an electric machine air inlet filtering mechanism, which solves the problem that dust with high viscosity blocked on the filter screen is not easy to clean.

[0006] To achieve the above object, the application is implemented by the following technical scheme: An electric machine air inlet filtering mechanism comprises an electric machine body and a rotor arranged on the right side of the electric machine body. The right side of the electric machine body is provided with an air inlet cover. The right side of the air inlet cover is fixedly connected with a fixed box. Two air inlet holes are formed in the right side of the fixed box. A filtering unit for filtering dust in the airflow is arranged on the inner side of the fixed box. The filtering unit comprises two air inlet cylinders. The two air inlet cylinders are fixedly connected to the inner side of the fixed box. A filter cover is arranged on the left side of the air inlet cylinder. A replacement assembly is arranged on the outer side of the filter cover. A cleaning assembly is arranged on the outer side of the air inlet cylinder.

[0007] Preferably, the cleaning assembly comprises a curved groove, the curved groove is arranged on the outer side of the rotor, the outer side of the curved groove is provided with a contact rod, the front end of the contact rod is fixedly connected with a reciprocating plate one, the inner side of the air inlet cover is fixedly connected with a limiting plate and a guide plate, the reciprocating plate one is slidably connected with the limiting plate, the rear side of the reciprocating plate one is fixedly connected with a contact block, the outer side of the guide plate is slidably connected with a guide block, the front side of the guide block is fixedly connected with a telescopic rod one, the front end of the telescopic rod one is fixedly connected with a pressing plate, the inner wall of the air inlet cover and located at the rear side of the pressing plate is fixedly connected with a fixed frame, the inner side of the fixed frame is provided with an air bag, and the outer side of the air inlet cylinder is fixedly connected with a vibration box.

[0008] Preferably, the inner wall of the fixed box is fixedly connected with a fixed rod, the left end of the fixed rod is fixedly connected with a fixed plate, the left side of the fixed plate is provided with a sliding groove one, the inner side of the sliding groove one is slidably connected with two symmetrically distributed sliding blocks one, the left side of the sliding block one is fixedly connected with a rotating block one, the outer side of the rotating block one is rotatably connected with an inclined plate one, the outer side of the inclined plate one is rotatably connected with a rotating block two, the left end of the rotating block two is fixedly connected with a contact plate, the contact plate is located on the right side of the pressing plate, the contact plate and the fixed plate are fixedly connected with a spring one, the outer side of the sliding block one is fixedly connected with a reciprocating plate two, one end of the reciprocating plate two penetrates through the inner side of the vibration box and is fixedly connected with a toothed plate, the inner side of the vibration box is rotatably connected with a swing rod, the outer end of the swing rod is fixedly connected with a gear meshingly connected with the toothed plate, the outer side of the swing rod is fixedly connected with a rotating roller, the outer side of the rotating roller is fixedly connected with a connecting rod, the outer end of the connecting rod is fixedly connected with a striking block, and the inner side of the vibration box is fixedly connected with a metal plate.

[0009] Preferably, the contact block is located on the left side of the pressing plate, the reciprocating plate one is located on the front side of the pressing plate, the pressing plate is located on the front side of the air bag, and the pressing plate is fixedly connected with the air bag.

[0010] Preferably, the replacement assembly comprises a sliding groove two, the sliding groove two is arranged on the front and rear sides of the fixed plate, the inner side of the sliding groove two is slidably connected with two symmetrically distributed sliding blocks two, the sliding blocks two and the filter cover are fixedly connected with mounting plates, the outer sides of the two mounting plates are rotatably connected with inclined plates two, the outer side of the right end of the inclined plate two is rotatably connected with a rotating block three, the right side of the rotating block three is fixedly connected with a control plate, the rear side of the control plate is fixedly connected with an L-shaped plate, and the control plate and the fixed plate are fixedly connected with a spring two.

[0011] Preferably, the guide plate is provided with a movable rod on both the upper and lower sides, and a blocking plate is fixedly connected to the outer end of the movable rod. A squeezing rod is fixedly connected to the outer side of the blocking plate on both the upper and lower sides. A telescopic rod II is fixedly connected to the front side of the guide plate. A trapezoidal block is fixedly connected to the front end of the telescopic rod II. A spring III is fixedly connected between the trapezoidal block and the guide plate. The blocking plate is located on the left side of the L-shaped plate, the airbag is located on the front side of the trapezoidal block, and the squeezing rod abuts against the trapezoidal block.

[0012] Preferably, an installation block is fixedly connected to the outer side of the filter cover, and a sealing plug is fixedly connected to the outer end of the installation block. Rectangular holes adapted to the sealing plug are provided on both the upper and lower sides of the fixed box. Beneficial effects

[0013] This invention provides an air inlet filter mechanism for a motor. Compared with the prior art, it has the following advantages: (1) The motor air intake filter mechanism is equipped with a rotor, a curved groove, a contact rod, a reciprocating plate 1, a pressing plate, a contact plate, a spring 1, a reciprocating plate 2, a toothed plate, an impact block and a metal plate. When the filter cover is blocked, the impact block is controlled to repeatedly impact the metal plate, so that the sticky dust on the filter cover falls off and the cleaning effect is increased.

[0014] (2) The motor air intake filtration mechanism is equipped with a fixed plate, a mounting plate, a filter cover, an inclined plate, a control plate, an L-shaped plate, a blocking plate, a trapezoidal plate and an air bag. When the motor temperature is high, the filter covers on both sides are discharged from the fixed box, which facilitates quick replacement of the filter screen and is easy to operate. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional perspective view of the present invention; Figure 3 This is a partial cross-sectional perspective view of the three-dimensional structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the filtering unit in this invention; Figure 5 This is a partial three-dimensional structural diagram of the filter unit in this invention; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a partial perspective three-dimensional structural diagram of the filtering unit in this invention; Figure 8 for Figure 7 Enlarged view of point B in the middle; Figure 9 This is a side-view perspective view of the filter unit in this invention. Figure 10for Figure 9 Enlarged view of point C in the middle; Figure 11 for Figure 9 Enlarged view of point D in the middle.

[0016] In the diagram: 1. Motor body; 2. Air inlet hood; 3. Fixing box; 4. Rectangular hole; 5. Filter unit; 6. Rotor; 7. Air inlet; 51. Air inlet duct; 52. Filter cover; 53. Cleaning assembly; 54. Replacement assembly; 531. Curved groove; 532. Contact rod; 533. Reciprocating plate one; 534. Limiting plate; 535. Contact block; 536. Pressing plate; 537. Guide plate; 538. Telescopic rod one; 539. Airbag; 5310. Fixing frame; 5311. Contact plate; 5312. Fixing rod; 5313. Fixing plate; 5314. Slide groove one; 5315. Sliding block one; 5316. Rotating block one; 5317. Inclined plate one; 5318. Rotating block two; 53 19. Spring 1; 5320. Reciprocating Plate 2; 5321. Vibration Box; 5322. Tooth Plate; 5323. Gear; 5324. Swing Rod; 5325. Rotating Roller; 5326. Connecting Rod; 5327. Impact Block; 5328. Metal Plate; 5329. Guide Block; 541. Mounting Block; 542. Sealing Plug; 543. Slide Groove 2; 544. Sliding Block 2; 545. Mounting Plate; 546. Inclined Plate 2; 547. Rotating Block 3; 548. Control Plate; 549. Spring 2; 5410. L-shaped Plate; 5411. Blocking Plate; 5412. Extrusion Rod; 5413. Moving Rod; 5414. Telescopic Rod 2; 5415. Spring 3; 5416. Trapezoidal Block. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This invention provides the following technical solutions: Example

[0019] Please see Figures 1-8An air intake filtration mechanism for an electric motor includes a motor body 1 and a rotor 6 disposed on the right side of the motor body 1. An air intake hood 2 is disposed on the right side of the motor body 1, and a fixed box 3 is fixedly connected to the right side of the air intake hood 2. Two air intake holes 7 are opened on the right side of the fixed box 3. A filter unit 5 for filtering dust in the airflow is disposed inside the fixed box 3. The filter unit 5 includes two air intake ducts 51, both of which are fixedly connected to the inside of the fixed box 3. A filter cover 52 is disposed on the left side of the air intake duct 51, and a replacement component 54 is disposed on the outside of the filter cover 52. A cleaning component 53 is disposed on the outside of the air intake duct 51. A through hole is opened on the right side of the motor body 1 to facilitate the entry of filtered airflow into the motor body 1 and the airflow is filtered by the filter unit 5.

[0020] The cleaning component 53 includes a curved groove 531, which is located on the outer side of the rotor 6. A contact rod 532 is provided on the outer side of the curved groove 531. A reciprocating plate 533 is fixedly connected to the front end of the contact rod 532. A limit plate 534 and a guide plate 537 are fixedly connected to the inner side of the air inlet hood 2. The reciprocating plate 533 is slidably connected to the limit plate 534. A contact block 535 is fixedly connected to the rear side of the reciprocating plate 533. A guide block 5329 is slidably connected to the outer side of the guide plate 537. A telescopic rod 538 is fixedly connected to the front side of the guide block 5329. A pressing plate 536 is fixedly connected to the front end of the telescopic rod 538. A fixing frame 5310 is fixedly connected to the inner wall of the air inlet hood 2 and to the rear side of the pressing plate 536. An airbag 539 is provided on the inner side of the fixing frame 5310. A vibrating box 5321 is fixedly connected to the outer side of the air inlet duct 51. A fixing rod 5312 is fixedly connected to the inner wall of the fixing box 3. A fixing plate 5313 is fixedly connected to the left end of the fixing rod 5312. A sliding groove 5314 is provided on the left side of the fixing plate 5313. Two symmetrically distributed sliders 5315 are slidably connected to the inner side of the sliding groove 5314. A rotating block 5316 is fixedly connected to the left side of the slider 5315. An inclined plate 5317 is rotatably connected to the outer side of the rotating block 5316. A rotating block 5318 is rotatably connected to the outer side of the inclined plate 5317. A contact plate 5311 is fixedly connected to the left end of the rotating block 5318. The contact plate 5311 is located to the right of the pressing plate 536. A spring is fixedly connected between the contact plate 5311 and the fixing plate 5313. 5319, A reciprocating plate 5320 is fixedly connected to the outer side of slider 5315. One end of the reciprocating plate 5320 passes through the inner side of the vibrating box 5321 and is fixedly connected to a toothed plate 5322. A swing rod 5324 is rotatably connected to the inner side of the vibrating box 5321. A gear 5323 that meshes with the toothed plate 5322 is fixedly connected to the outer end of the swing rod 5324. A rotating roller 5325 is fixedly connected to the outer side of the swing rod 5324. A connecting rod 5326 is fixedly connected to the outer side of the rotating roller 5325. An impact block 5327 is fixedly connected to the outer end of the connecting rod 5326. A metal plate 5328 is fixedly connected to the inner side of the vibrating box 5321. A contact block 535 is located to the left of the pressing plate 536. A reciprocating plate 533 is located in front of the pressing plate 536. The pressure plate 536 is located in front of the airbag 539 and is fixedly connected to the airbag 539. When dust clogs the filter cover 52, the temperature in the air inlet cover 2 and the fixed box 3 rises. The airbag 539 is filled with helium, causing it to inflate. The airbag 539 drives the pressure plate 536 forward, and the pressure plate 536 contacts the reciprocating plate 533. At the same time, the motor body 1 drives the rotor 6 to rotate. Under the action of the curved groove 531, the rotor 6 controls the reciprocating plate 533 on the contact rod 532 to move left and right repeatedly. The reciprocating plate 533 drives the contact block 535 to move left and right. The contact block 535 pushes the pressure plate 536 to move left and right repeatedly. The pressure plate 536 drives the contact plate 5311 to move left and right repeatedly. The contact plate 5311 drives the inclined plate 5317 to rotate.Because the inclined plates 5317 on both sides are symmetrically distributed, the inclined plates 5317 drive the slider 5315 to move, the slider 5315 drives the reciprocating plate 5320 to move, the reciprocating plate 5322 drives the toothed plate 5322 to move up and down repeatedly, the toothed plate 5322 drives the gear 5323 to rotate, the gear 5323 drives the swing rod 5324 to swing, the swing rod 5324 drives the rotating roller 5325 to rotate, the rotating roller 5325 drives the connecting rod 5326 to swing, and the connecting rod 5326 drives the impact block 5327 to swing, causing the impact block 5327 to impact the metal plate 5328, generating vibration. These vibrations are transmitted to the filter cover 52, causing the highly adhesive dust on the filter screen of the filter cover 52 to fall off, increasing the cleaning effect. Example

[0021] Based on Example 1, such as Figures 9-11As shown, the replacement component 54 includes a second slide groove 543, which is formed on the front and rear sides of the fixed plate 5313. Two symmetrically distributed sliders 544 are slidably connected to the inner side of the slide groove 543. A mounting plate 545 is fixedly connected between the sliders 544 and the filter cover 52. An inclined plate 546 is rotatably connected to the outer side of each mounting plate 545. A rotating block 547 is rotatably connected to the outer right end of the inclined plate 546. A control plate 548 is fixedly connected to the right side of the rotating block 547. An L-shaped plate 5410 is fixedly connected to the rear side of the control plate 548. A spring 2 is fixedly connected between the control plate 548 and the fixed plate 5313. 549. Movable rods 5413 are provided on both the upper and lower sides of the guide plate 537. A blocking plate 5411 is fixedly connected to the outer end of each movable rod 5413. A pressing rod 5412 is fixedly connected to the outer side of each blocking plate 5411 on both sides. A telescopic rod 5414 is fixedly connected to the front side of the guide plate 537. A trapezoidal block 5416 is fixedly connected to the front end of the telescopic rod 5414. A spring 5415 is fixedly connected between the trapezoidal block 5416 and the guide plate 537. The blocking plate 5411 is located to the left of the L-shaped plate 5410. The airbag 539 is located in front of the trapezoidal block 5416. The pressing rod 5412 abuts against the trapezoidal block 5416. When the internal height... As the temperature continues to rise, the airbag 539 continues to inflate. The rear side of the airbag 539 contacts the trapezoidal block 5416, causing the trapezoidal block 5416 to move backward. The trapezoidal block 5416 drives the blocking plate 5411 on the extrusion rod 5412 to move, causing the blocking plate 5411 to separate from the L-shaped plate 5410. Since the spring 549 is initially in a straightened state, when the blocking plate 5411 separates from the L-shaped plate 5410, the spring 549 drives the control plate 548 to move to the left. The control plate 548 drives the inclined plate 546 to rotate. The inclined plate 546 drives the filter cover 52 on the mounting plate 545 to move. Because the inclined plates 546 on both sides are symmetrically distributed, the upper and lower sides... The filter cover 52 is quickly discharged from the fixed box 3, allowing staff to replace the filter screen without disassembling the outer shell. The filter screen on the filter cover 52 is installed with bolts for easy replacement. During installation, hot air is introduced through the air inlet 7, causing the airbag 539 to squeeze the trapezoidal block 5416 and press the replaced filter covers 52 on both sides into the fixed box 3. At this time, the blocking plate 5411 is located on the left side of the L-shaped plate 5410. When the temperature drops, the trapezoidal block 5416 is reset by the action of the spring 5415, and the blocking plate 5411 limits the L-shaped plate 5410, facilitating the installation of the filter cover 52.

[0022] A mounting block 541 is fixedly connected to the outer side of the filter cover 52. A sealing plug 542 is fixedly connected to the outer end of the mounting block 541. Rectangular holes 4 that are adapted to the sealing plug 542 are opened on both the upper and lower sides of the fixed box 3. The airflow can easily enter the motor body 1 through the sealing plug 542.

[0023] Working principle: In use, the airflow entering the motor body 1 is first filtered through the filter cover 52. When there is a lot of dust on the filter cover 52, causing blockage, the temperature in the air inlet cover 2 and the fixed box 3 rises, the airbag 539 expands and drives the pressing plate 536 forward. At the same time, the motor body 1 drives the rotor 6 to rotate. Under the action of the curved groove 531, the contact rod 532 and the reciprocating plate 533, the pressing plate 536 is controlled to move left and right repeatedly. Under the action of the contact plate 5311, the inclined plate 5317, the reciprocating plate 5320, the toothed plate 5322, the gear 5323, the swing rod 5324 and the rotating roller 5325, the impact block 5327 is controlled to impact the metal plate 5328, generating vibration. This vibration helps to shake off the highly sticky dust on the filter cover 52, increasing the cleaning effect.

[0024] As the temperature continues to rise, the airbag 539 continues to expand, causing the trapezoidal block 5416 to move. Under the action of the squeezing rod 5412 and the blocking plate 5411, the blocking plate 5411 is separated from the L-shaped plate 5410. Under the action of the control plate 548, the inclined plate 546 and the mounting plate 545, multiple filter covers 52 are quickly discharged to the outside of the fixed box 3 for easy replacement.

[0025] 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.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A motor air inlet filter mechanism, comprising a motor body (1) and a rotor (6) disposed on the right side of the motor body (1), characterized in that: An air inlet hood (2) is provided on the right side of the motor body (1). A fixed box (3) is fixedly connected to the right side of the air inlet hood (2). Two air inlets (7) are opened on the right side of the fixed box (3). A filter unit (5) for filtering dust in the airflow is provided inside the fixed box (3). The filter unit (5) includes two air inlets (51). Both air inlets (51) are fixedly connected to the inside of the fixed box (3). A filter cover (52) is provided on the left side of the air inlet (51). A replacement component (54) is provided on the outside of the filter cover (52). A cleaning component (53) is provided on the outside of the air inlet (51).

2. The motor air inlet filter mechanism according to claim 1, characterized in that: The cleaning assembly (53) includes a curved groove (531) located on the outer side of the rotor (6). A contact rod (532) is provided on the outer side of the curved groove (531). A reciprocating plate (533) is fixedly connected to the front end of the contact rod (532). A limit plate (534) and a guide plate (537) are fixedly connected to the inner side of the air inlet hood (2). The reciprocating plate (533) is slidably connected to the limit plate (534). A contact block (53) is fixedly connected to the rear side of the reciprocating plate (533). 5) A guide block (5329) is slidably connected to the outer side of the guide plate (537). A telescopic rod (538) is fixedly connected to the front side of the guide block (5329). A pressing plate (536) is fixedly connected to the front end of the telescopic rod (538). A fixing frame (5310) is fixedly connected to the inner wall of the air inlet hood (2) and to the rear side of the pressing plate (536). An airbag (539) is provided on the inner side of the fixing frame (5310). A vibration box (5321) is fixedly connected to the outer side of the air inlet tube (51).

3. The motor air inlet filter mechanism according to claim 2, characterized in that: A fixing rod (5312) is fixedly connected to the inner wall of the fixed box (3). A fixing plate (5313) is fixedly connected to the left end of the fixing rod (5312). A sliding groove (5314) is provided on the left side of the fixing plate (5313). Two symmetrically distributed sliders (5315) are slidably connected to the inner side of the sliding groove (5314). A rotating block (5316) is fixedly connected to the left side of the slider (5315). An inclined plate (5317) is rotatably connected to the outer side of the rotating block (5316). A rotating block (5318) is rotatably connected to the outer side of the inclined plate (5317). A contact plate (5311) is fixedly connected to the left end of the rotating block (5318). The contact plate (5311) is located to the right of the pressing plate (536). The contact plate (5311) and the fixing plate (531) are connected to each other. 3) A spring (5319) is fixedly connected between the two. A reciprocating plate (5320) is fixedly connected to the outside of the slider (5315). One end of the reciprocating plate (5320) passes through the inside of the vibration box (5321) and is fixedly connected to a toothed plate (5322). A swing rod (5324) is rotatably connected to the inside of the vibration box (5321). A gear (5323) that meshes with the toothed plate (5322) is fixedly connected to the outside of the swing rod (5324). A rotating roller (5325) is fixedly connected to the outside of the rotating roller (5325). A connecting rod (5326) is fixedly connected to the outside of the rotating roller (5325). An impact block (5327) is fixedly connected to the outside of the connecting rod (5326). A metal plate (5328) is fixedly connected to the inside of the vibration box (5321).

4. The motor air inlet filter mechanism according to claim 2, characterized in that: The contact block (535) is located to the left of the pressing plate (536), the reciprocating plate (533) is located in front of the pressing plate (536), the pressing plate (536) is located in front of the airbag (539), and the pressing plate (536) is fixedly connected to the airbag (539).

5. The motor air inlet filter mechanism according to claim 3, characterized in that: The replacement component (54) includes a slide groove two (543), which is opened on the front and rear sides of the fixed plate (5313). Two symmetrically distributed sliders two (544) are slidably connected to the inner side of the slide groove two (543). A mounting plate (545) is fixedly connected between the sliders two (544) and the filter cover (52). An inclined plate two (546) is rotatably connected to the outer side of the two mounting plates (545). A rotating block three (547) is rotatably connected to the outer side of the right end of the inclined plate two (546). A control plate (548) is fixedly connected to the right side of the rotating block three (547). An L-shaped plate (5410) is fixedly connected to the rear side of the control plate (548). A spring two (549) is fixedly connected between the control plate (548) and the fixed plate (5313).

6. The motor air inlet filter mechanism according to claim 5, characterized in that: The guide plate (537) is provided with moving rods (5413) on both the upper and lower sides. The outer end of the moving rod (5413) is fixedly connected to a blocking plate (5411). The outer sides of the blocking plates (5411) on both the upper and lower sides are fixedly connected to a squeezing rod (5412). The front side of the guide plate (537) is fixedly connected to a telescopic rod (5414). The front end of the telescopic rod (5414) is fixedly connected to a trapezoidal block (5416). A spring (5415) is fixedly connected between the trapezoidal block (5416) and the guide plate (537). The blocking plate (5411) is located on the left side of the L-shaped plate (5410). The airbag (539) is located on the front side of the trapezoidal block (5416). The squeezing rod (5412) abuts against the trapezoidal block (5416).

7. The motor air inlet filter mechanism according to claim 5, characterized in that: An installation block (541) is fixedly connected to the outer side of the filter cover (52), and a sealing plug (542) is fixedly connected to the outer end of the installation block (541). Rectangular holes (4) adapted to the sealing plug (542) are provided on both the upper and lower sides of the fixed box (3).

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