A vibration-reducing and noise-reducing vacuum cleaner

Abstract

The present invention discloses a vibration-reducing and noise-reducing vacuum cleaner. It includes a dust cup, a motor assembly and a handle assembly. A filter screen cover is provided inside the dust cup. An air inlet pipe is provided at the inner bottom of the dust cup. The bottom of the dust cup is connected to one end of the air inlet pipe as an air inlet. A dust shield ring is provided on the other end of the air inlet pipe. The air inlet pipe is sealed and connected to the lower end of the filter screen cover through the dust shield ring. The upper end of the filter screen cover is sealed and connected to the motor assembly. The handle assembly is installed on the motor assembly. The beneficial effects of the present invention are: good dust collection effect, good vibration reduction effect, noise reduction, good sealing effect, high firmness, long service life, easy user operation, reduced movement resistance, wide application range, convenient disassembly and installation, simple structure, easy operation, high safety and reliability, and automatic defense.

Description

Technical Field

[0001] The present invention relates to the technical field related to vacuum cleaners, and in particular to a vibration-reducing and noise-reducing vacuum cleaner. Background Art

[0002] The working principle of the vacuum cleaner is that the vacuum cleaner motor rotates at high speed, sucking air from the suction port, so that the dust box produces a certain vacuum, and the dust enters the dust bag in the dust box through the floor brush, pipe, handle, hose, and main suction pipe. The dust is left in the dust bag, and the filtered air enters the motor through a layer of filter. This layer of filter is a protective barrier to prevent the dust bag from breaking and sucking dust into the motor. The air entering the motor flows out through the motor. Due to the continuous wear of the carbon brush during the operation of the motor, another filter is added before it flows out of the vacuum cleaner. The finer the filter material, the cleaner the air can be filtered, but the worse the air permeability, which affects the air volume inhaled by the motor and reduces the efficiency of the vacuum cleaner. But for users, comfort and cleanliness are the main things. Its air permeability is low, so it is made into a wavy shape to increase the air permeability area. Some of this filter material can be washed repeatedly. Any filter material has a "lifespan", that is, after long-term use, the micropores of the filter material have been blocked by small particles of dust. Therefore, paper dust bags are more ideal, disposable after use, hygienic and convenient. After cleaning, the fibers of cloth dust filter bags will become compacted, affecting the filtering effect and air permeability. SMS three-layer composite filter material is washable, but the air permeability is slightly lower.

[0003] When the existing vacuum cleaner is in use, the motor often rotates, causing the entire vacuum cleaner to vibrate, so that the vibration amplitude of the entire vacuum cleaner is relatively large, and the vibration will also bring corresponding noise, making the noise also relatively loud. Summary of the invention

[0004] The present invention aims to overcome the above-mentioned deficiencies in the prior art and provides a vibration-reducing and noise-reducing vacuum cleaner with good vibration-reduction effect and reduced noise.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A vibration-damping and noise-reducing vacuum cleaner comprises a dust cup, a motor assembly and a handle assembly, wherein a filter screen cover is arranged inside the dust cup, an air inlet pipe is arranged at the inner bottom of the dust cup, an air inlet is formed at the connection between the bottom of the dust cup and one end of the air inlet pipe, a dust shield ring is arranged on the other end of the air inlet pipe, the air inlet pipe is sealedly connected to the lower end of the filter screen cover via the dust shield ring, the upper end of the filter screen cover is sealedly connected to the motor assembly, and the handle assembly is mounted on the motor assembly.

[0007] The dust shield is made of PET elastic material. When in use, the airflow enters from the air inlet of the dust cup, passes through the dust shield on the dust cup and enters the filter screen, the airflow is filtered by the filter screen and then enters the motor assembly and is discharged, while the dust is collected in the dust cup. The handle assembly is used to operate the vacuum cleaner. Since the dust shield is designed between the air inlet pipe of the dust cup and the filter screen, on the one hand, it can prevent the dust entering the filter screen from flowing back into the air inlet pipe of the dust cup, affecting the dust collection effect of the entire vacuum cleaner. On the other hand, the design of the dust shield can reduce the vibration between the two, thereby reducing the noise generated between the two, and also increasing the sealing effect between the two, so as to achieve the purpose of good dust collection effect, good vibration reduction effect, reduced noise and good sealing effect.

[0008] Preferably, the filter screen comprises an air inlet section, a filter section and an exhaust section, one end of the air inlet section is sealed and connected to the air inlet pipe through a dust shield ring, the other end of the air inlet section is connected to the lower end of the filter section, the upper end of the filter section is connected to the exhaust section, and the lower end of the filter section is provided with an umbrella-shaped dust suppression ring, which is oriented in the direction of the air inlet section. The design of the umbrella-shaped dust suppression ring can improve the firmness of the filter screen on the one hand, and guide the dust on the outside of the filter screen along the umbrella-shaped dust suppression ring to the bottom of the dust cup on the other hand, so that the dust in the dust cup can be gathered downward.

[0009] Preferably, the filter section is provided with a plurality of filter mesh holes, the side of the filter section is provided with an air outlet, the interior of the filter section is provided with an air duct, the air duct is L-shaped, one end of the air duct is connected to the air inlet section, the other end of the air duct is connected to the air outlet, and the turning point of the air duct adopts an arc transition structure. Through the design of the filter mesh holes, when the airflow moves in a circle along the inner wall of the dust cup, part of the dust gathers at the lower end of the dust cup after the airflow enters the filter mesh holes, and the remaining part of the dust enters the exhaust section of the filter screen cover due to the pressure difference of the airflow; through the design of the air duct, on the one hand, the airflow can be guided to the side of the filter screen cover and act on the inner wall of the dust cup, and on the other hand, the arc transition design at the turning point of the air duct improves the firmness of the air duct, and while changing the airflow, it can reduce the impact of the airflow on the air duct, thereby improving the service life of the air duct.

[0010] Preferably, a slot is provided at one end of the air duct connected to the air outlet, and a dust shield is provided in the slot. The dust shield is L-shaped and made of elastic material. One end of the dust shield is installed in the slot, and the other end of the dust shield covers the position of the air outlet. The cross-sectional shape of the other end of the dust shield is an arc. Through the design of the dust shield, when the vacuum cleaner is not working, the dust shield automatically closes between the air outlet under the action of its own elastic force; and when the vacuum cleaner is working, the dust shield is automatically pushed outward by the airflow, and the airflow is guided by the dust shield so that the airflow is tangential to the inner wall of the dust cup, so that after reaching the air outlet of the filter cover, the airflow moves along the tangent of the inner wall of the dust cup, so that the airflow always rotates in a circle along the inner wall of the dust cup inside the dust cup.

[0011] Preferably, the exhaust section is provided with an exhaust port, the exhaust port of the exhaust section is provided with an annular groove and a filter bracket, the annular groove is provided with an annular sealing strip, the filter bracket is sealed and connected to the exhaust section via the annular sealing strip, and the filter bracket is placed between the filter screen and the motor assembly. The design of the annular sealing strip enables a sealed transition connection between the filter bracket and the filter screen, thereby reducing the vibration and noise between the two.

[0012] Preferably, a flanged sealing ring is provided on the outside of the exhaust port of the exhaust section, a positioning step is provided on the inner wall of the dust cup, and the filter screen cover is sealed and connected to the dust cup through the flanged sealing ring on the exhaust section and the positioning step on the dust cup. The flanged sealing ring is very thin and elastic. The matching design of the flanged sealing ring and the positioning step can, on the one hand, play a role in positioning the filter screen cover, ensuring the stability between the dust cup and the filter screen cover, and on the other hand, achieve a sealing effect between the filter screen cover and the dust cup, reduce the vibration between the two, and reduce the noise between the two.

[0013] Preferably, the filter bracket includes a small circle and a large circle, the diameter of the small circle is smaller than the diameter of the large circle, the small circle and the large circle are concentric circles, the small circle and the large circle are connected by a connecting rib, a PET composite filter layer is provided on one end face of the small circle facing the filter screen, the PET composite filter layer is connected to the filter bracket by ultrasonic wave, a handle is provided on one end face of the small circle facing the motor assembly, a sealing ring groove is provided on one end face of the large circle facing the motor assembly, an exhaust sealing ring is provided in the sealing ring groove, and the filter bracket is sealed and connected to the motor assembly by the exhaust sealing ring. The design of the connecting rib improves the firmness of the filter bracket; the design of the PET composite filter layer and the ultrasonic connection ensures that the filter bracket can ensure dust-proof sealing; the design of the sealing ring groove and the exhaust sealing ring ensures that the filter bracket and the motor assembly are softly connected, which ensures the sealing performance between the two, reduces the vibration between the two, and reduces the noise between the two.

[0014] Preferably, a filter sponge is provided between the filter bracket and the motor assembly. The design of the filter sponge further improves the dust collection effect of the vacuum cleaner.

[0015] Preferably, the end of the dust cup with the air inlet is provided with an inclined surface, and the angle between the inclined surface and the horizontal plane is 25°-30°. Through the design of the inclined surface, when the vacuum cleaner is not equipped with a floor brush assembly, the bottom surface of the dust cup can directly contact the bottom surface of the dust collector, which is convenient for user operation and reduces the movement resistance of the vacuum cleaner, and has a wide range of applications.

[0016] Preferably, the axis of the air inlet pipe in the dust cup is consistent with the axis of the air inlet section on the filter screen. The coaxial design between the two can ensure unimpeded airflow, reduce airflow resistance, reduce vibration between the two, and reduce noise between the two.

[0017] Preferably, the dust shield ring includes a ring body and a ring cover, the dust shield ring is installed on the air inlet pipe of the dust cup through the ring body, the ring cover of the dust shield ring is placed between the air inlet pipe of the dust cup and the air inlet section of the filter screen, and the ring cover is composed of a number of evenly distributed sealing springs. The sealing spring design on the dust shield ring automatically opens upwards when airflow enters, and when the airflow is in a stationary state, the dust shield ring automatically closes downwards under the action of its own elastic force, ensuring that dust does not flow back.

[0018] Preferably, the motor assembly comprises a motor housing, a dust suction motor, a power cord, a power switch and a dust cup switch; an air suction port is provided at the lower end of the motor housing; the dust suction motor is installed in the motor housing and is placed at the position of the air suction port; an exhaust mesh port is provided on the side of the motor housing; the exhaust mesh port on the motor housing corresponds to the dust suction motor; the power cord and the power switch are installed on the motor housing; the power cord is electrically connected to the dust suction motor via the power switch; a holding hole is provided on the motor housing; a wire hanger is fixed on the motor housing and placed at the position of the power cord; the A button slot 1 is provided on the side of the motor housing and the connection end with the dust cup, a button slot 2 is provided on the side of the dust cup and the connection end with the motor housing, the button slot 1 and the button slot 2 cooperate with each other, the dust cup switch is installed in the button slot 1, the inner side surface of the upper end of the dust cup switch is provided with a pressing spring, the pressing spring is placed between the dust cup switch and the button slot 1, a clamp is provided on the inner side surface of the lower end of the dust cup switch, a clamp hole matching the clamp is provided in the button slot 2, a steel pipe fixing frame is provided inside the upper end of the motor housing, and the handle assembly is installed on the steel pipe fixing frame of the motor housing. The design of the button slot 1, the button slot 2, the dust cup switch and the pressing spring facilitates the disassembly and installation between the dust cup and the motor housing, and the structure is simple and the operation is convenient.

[0019] Preferably, an exhaust sponge is provided inside the motor housing and at the location of the exhaust mesh port. The exhaust mesh port includes a plurality of exhaust mesh holes. An exhaust slope is provided inside the exhaust mesh hole. The exhaust slope forms an angle of 5°-15° with the exhaust mesh hole. The exhaust slope faces the direction of the dust cup switch. The design of the exhaust sponge can prevent external dust from entering the vacuum motor and affecting the use of the vacuum motor. It has high safety and reliability, and can also reduce the vibration and noise of the vacuum motor. The design of the exhaust mesh hole and the exhaust slope can, on the one hand, be used for the heat dissipation of the vacuum motor, and on the other hand, can guide the airflow to the front of the vacuum cleaner to prevent the airflow from polluting the vacuumed ground. At the same time, the exhausted airflow can be subjected to secondary vacuuming.

[0020] Preferably, the handle assembly includes a lifting handle and a connecting steel pipe, one end of the connecting steel pipe is fixedly mounted on the lifting handle, the other end of the connecting steel pipe is provided with a spring buckle, the steel pipe fixing frame is provided with a groove, the motor housing is provided with a positioning hole, the other end of the connecting steel pipe is mounted on the steel pipe fixing frame through the cooperation of the spring buckle and the groove, the connecting steel pipe is mounted on the motor housing through the cooperation of the spring buckle and the positioning hole, and the lifting handle is provided with anti-slip stripes. Through the design of the spring buckle, the steel pipe fixing frame, the groove and the positioning hole on the motor housing, when the connecting steel pipe is inserted into the motor housing, it enters along the groove on the steel pipe fixing frame, and the spring buckle is automatically compressed until the spring buckle reaches the position of the positioning hole on the motor housing, and the spring buckle automatically pops out and is positioned in the positioning hole of the motor housing; through the design of the anti-slip stripes, the gripping effect of the lifting handle can be improved, and the reliability is high.

[0021] Preferably, a second wire hanger is provided on the lifting handle and is placed near the connecting steel pipe. The second wire hanger on the lifting handle corresponds to the first wire hanger on the motor housing. The lifting handle is provided with a limiting groove. The second wire hanger is provided with a limiting protrusion that matches the limiting groove. The second wire hanger is rotatably connected to the lifting handle through the cooperation of the limiting protrusion and the limiting groove. Through the design of the first wire hanger and the second wire hanger, the hooks on the two are opposite, and the power cord can be wrapped between the two, which is convenient for the storage of the power cord; and the second wire hanger is rotatably connected to the lifting handle, so that when releasing the power cord, it is only necessary to rotate the direction of the second wire hanger so that the hook of the second wire hanger is consistent with the hook of the first wire hanger, and the power cord can be directly removed from the second wire hanger, realizing the function of automatic wire release.

[0022] Preferably, a floor brush assembly is provided at the air inlet of the dust cup, and the floor brush assembly includes a floor brush upper cover, a floor brush lower cover and a floor brush connecting rod, the floor brush upper cover is installed on the floor brush lower cover, a large roller is installed at the rear end of the floor brush upper cover, a dust suction chamber is provided at the front end of the floor brush lower cover, a roller groove is provided on the floor brush lower cover and at the front end of the dust suction chamber, a roller shaft is provided in the roller groove, a small roller is provided on the roller shaft, and the small roller is rotatably connected to the roller groove through the roller shaft, and the floor brush lower cover is provided on the dust suction chamber. A scraper groove is provided at the rear end, a floor brush strip is provided in the scraper groove, the floor brush strip is rotatably connected to the scraper groove, an air inlet channel is provided between the floor brush upper cover and the floor brush lower cover, the dust suction chamber is connected to the air inlet channel, the floor brush connecting rod is installed between the rear end of the floor brush upper cover and the rear end of the floor brush lower cover, a slide groove is provided on the floor brush upper cover, a floor brush baffle is provided in the slide groove, one end of the floor brush connecting rod is connected to the air inlet channel and is placed at the position of the floor brush baffle, and the other end of the floor brush connecting rod is plugged into the air inlet pipe of the dust cup. The design of the large roller and the small roller can realize the mobile reliability of the floor brush assembly; and the design of the floor brush hanging strip can perform secondary dust removal on the ground; and the design of the floor brush baffle can prevent dust leakage at the connection between the floor brush connecting rod and the floor brush upper cover and the floor brush lower cover.

[0023] Preferably, the diameter of the air inlet section of the filter screen is 30-35 mm, and the power of the dust suction motor is 600W-800W. The power of the dust suction motor matches the diameter of the air inlet section on the filter screen, and the diameter of the air inlet section on the filter screen is designed to ensure the suction of sufficient air volume.

[0024] The beneficial effects of the present invention are: good dust absorption effect, good vibration reduction effect, noise reduction, good sealing effect, high firmness, long service life, easy for users to operate, reduced movement resistance, wide application range, convenient disassembly and installation, simple structure, easy operation, high safety and reliability, and automatic defense. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the dust cup and the motor housing;

[0027] Figure 3 yes Figure 2 Bottom view of

[0028] Figure 4 It is a schematic diagram of the structure of the filter cover and the dust collector motor;

[0029] Figure 5 , Figure 6 Schematic diagram of the structure of the filter cover;

[0030] Figure 7 It is a schematic diagram of the structure of the air duct;

[0031] Figure 8 is a schematic diagram of the structure of the handle assembly;

[0032] Fig. 9 It is a structural schematic diagram of the floor brush assembly;

[0033] Fig.10 yes Fig. 9 Bottom view of

[0034] Fig.11 It is a structural schematic diagram of the lifting handle;

[0035] Fig.12 It is a schematic diagram of the structure of the dust cup;

[0036] Fig.13 It is a schematic diagram of the structure of the dust shield.

[0037] In the figure: 1. Handle assembly, 2. Positioning hole, 3. Motor assembly, 4. Power switch, 5. Dust cup switch, 6. Dust cup, 7. Floor brush cover, 8. Floor brush assembly, 9. Power cord, 10. Button slot 1, 11. Button slot 2, 12. Clamp hole, 13. Inclined surface, 14. Wire hanger 1, 15. Grip hole, 16. Exhaust mesh port, 17. Exhaust mesh hole, 18. Exhaust inclined surface, 19. Sealing spring, 20. Ring cover, 21. Motor housing, 22. Vacuum motor, 23. Filter sponge, 24. Exhaust section, 25. Filter section, 26. Umbrella-shaped dust suppression ring, 27. Air inlet section, 28. Ring body, 29. Filter bracket, 30. Flanged sealing ring, 31. Exhaust sealing ring, 32. Connecting rib, 33. Big circle, 34. Handle, 35. Small circle, 36. PET composite filter layer, 37. Dust shield, 38. Air outlet, 39. Exhaust outlet, 40. Annular groove, 41. Annular sealing strip, 42. Air guide pipe, 43. Slot, 44. Anti-skid stripe, 45. Handle, 46. Second wire hanging head, 47. Connecting steel pipe, 48. Spring buckle, 49. Groove, 50. Steel pipe fixing frame, 51. Floor brush connecting rod, 52. Big roller, 53. Floor brush shield, 54. Floor brush lower cover, 55. Roller shaft, 56. Small roller, 57. Dust suction chamber, 58. Air inlet channel, 59. Roller groove, 60. Air inlet pipe, 61. Air inlet, 62. Dust shield, 63. Filter screen cover, 64. Sealing ring groove, 65. Filter screen hole, 66. Limiting protrusion, 67. Limiting groove, 68. Floor brush bar, 69. Scraping bar groove, 70. Positioning step. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] like Figure 1 In the embodiment described, a vibration-reducing and noise-reducing vacuum cleaner includes a dust cup 6, a motor assembly 3, and a handle assembly 1. A filter screen cover 63 is provided inside the dust cup 6. An air inlet pipe 60 is provided at the inner bottom of the dust cup 6. The bottom of the dust cup 6 and one end of the air inlet pipe 60 are connected to form an air inlet 61. A dust shield ring 62 is provided on the other end of the air inlet pipe 60. The air inlet pipe 60 is sealed with the lower end of the filter screen cover 63 through the dust shield ring 62. The upper end of the filter screen cover 63 is sealed with the motor assembly 3. The handle assembly 1 is mounted on the motor assembly 3. Figure 2 As shown, one end of the dust cup 6 having the air inlet 61 is provided with a slope 13, and the angle between the slope 13 and the horizontal plane is 25°-30°.

[0040] like Figure 5 , Figure 6 As shown, the filter screen cover 63 includes an air inlet section 27, a filter section 25 and an exhaust section 24. One end of the air inlet section 27 is sealed and connected to the air inlet pipe 60 through a dust shield ring 62, and the other end of the air inlet section 27 is connected to the lower end of the filter section 25. The upper end of the filter section 25 is connected to the exhaust section 24. The lower end of the filter section 25 is provided with an umbrella-shaped dust suppression ring 26, and the direction of the umbrella-shaped dust suppression ring 26 is the direction of the air inlet section 27. The filter section 25 is provided with a plurality of filter mesh holes 65, and the side of the filter section 25 is provided with an air outlet 38. The filter section 25 is provided with an air guide 42 inside. The shape of the air guide 42 is L-shaped. One end of the air guide 42 is connected to the air inlet section 27, and the other end of the air guide 42 is connected to the air outlet 38. The turning point of the air guide 42 adopts an arc transition structure. The exhaust section 24 is provided with an exhaust port 39, the exhaust port 39 of the exhaust section 24 is provided with an annular groove 40 and a filter bracket 29, the annular groove 40 is provided with an annular sealing strip 41, the filter bracket 29 is sealedly connected to the exhaust section 24 through the annular sealing strip 41, and the filter bracket 29 is placed between the filter screen cover 63 and the motor assembly 3. Fig.12 As shown, a flanged sealing ring 30 is provided on the outside of the exhaust port 39 of the exhaust section 24, a positioning step 70 is provided on the inner wall of the dust cup 6, and the filter screen cover 63 is sealed and connected to the dust cup 6 through the flanged sealing ring 30 on the exhaust section 24 and the positioning step 70 on the dust cup 6. The axis of the air inlet pipe 60 in the dust cup 6 is consistent with the axis of the air inlet section 27 on the filter screen cover 63.

[0041] like Figure 7As shown, a slot 43 is provided at one end of the air guide 42 connected to the air outlet 38, and a dust shield 37 is provided in the slot 43. The dust shield 37 is L-shaped and made of elastic material. One end of the dust shield 37 is installed in the slot 43, and the other end of the dust shield 37 covers the position where the air outlet 38 is located. The cross-section of the other end of the dust shield 37 is an arc shape. Figure 3 , Figure 4 , Fig.13 As shown, the dust shield ring 62 includes a ring body 28 and a ring cover 20. The dust shield ring 62 is installed on the air inlet pipe 60 of the dust cup 6 through the ring body 28. The ring cover 20 of the dust shield ring 62 is placed between the air inlet pipe 60 of the dust cup 6 and the air inlet section 27 of the filter cover 63. The ring cover 20 is composed of a number of evenly distributed sealing springs 19.

[0042] like Figure 5 As shown, the filter bracket 29 includes a small circle 35 and a large circle 33. The diameter of the small circle 35 is smaller than that of the large circle 33. The small circle 35 and the large circle 33 are concentric circles. The small circle 35 and the large circle 33 are connected by a connecting rib 32. A PET composite filter layer 36 is provided on one end surface of the small circle 35 facing the filter screen 63. The PET composite filter layer 36 is connected to the filter bracket 29 through ultrasonic waves. A handle 34 is provided on one end surface of the small circle 35 facing the motor assembly 3. A sealing ring groove 64 is provided on one end surface of the large circle 33 facing the motor assembly 3. An exhaust seal ring 31 is provided in the sealing ring groove 64. The filter bracket 29 is sealed and connected to the motor assembly 3 through the exhaust seal ring 31. Figure 4 As shown, a filter sponge 23 is provided between the filter support 29 and the motor assembly 3 .

[0043] like Figure 1 , Figure 2 , Figure 4As shown, the motor assembly 3 includes a motor housing 21, a dust suction motor 22, a power cord 9, a power switch 4 and a dust cup switch 5. The lower end of the motor housing 21 is provided with an air suction port. The dust suction motor 22 is installed in the motor housing 21 and is placed at the position of the air suction port. An exhaust mesh port 16 is provided on the side of the motor housing 21. The exhaust mesh port 16 on the motor housing 21 corresponds to the dust suction motor 22. The power cord 9 and the power switch 4 are installed on the motor housing 21. The power cord 9 is electrically connected to the dust suction motor 22 through the power switch 4. A gripping hole 15 is provided on the motor housing 21. A wire hanging head 14 is fixed on the motor housing 21 and is placed at the position where the power cord 9 is located. A button slot 10 is provided on the side of the motor housing 21 and the connection end with the dust cup 6, and a button slot 2 11 is provided on the side of the dust cup 6 and the connection end with the motor housing 21. The button slot 10 and the button slot 2 11 match each other. The dust cup switch 5 is installed in the button slot 10. A pressing spring is provided on the inner side of the upper end of the dust cup switch 5. The pressing spring is placed between the dust cup switch 5 and the button slot 10. A clamp is provided on the inner side of the lower end of the dust cup switch 5. A clamp hole 12 matching the clamp is provided in the button slot 2 11. A steel pipe fixing frame 50 is provided inside the upper end of the motor housing 21, and the handle assembly 1 is installed on the steel pipe fixing frame 50 of the motor housing 21. Figure 2 As shown, an exhaust sponge is provided inside the motor housing 21 and at the position where the exhaust mesh port 16 is located. The exhaust mesh port 16 includes a plurality of exhaust mesh holes 17. An exhaust inclined surface 18 is provided inside the exhaust mesh hole 17. An angle of 5°-15° is formed between the exhaust inclined surface 18 and the exhaust mesh hole 17. The exhaust inclined surface 18 faces the direction of the dust cup switch 5. The diameter of the air inlet section 27 of the filter screen cover 63 is 30-35 mm, and the power of the dust suction motor 22 is 600W-800W.

[0044] like Figure 1 , Figure 8 As shown, the handle assembly 1 includes a lifting handle 45 and a connecting steel pipe 47, one end of the connecting steel pipe 47 is fixedly mounted on the lifting handle 45, the other end of the connecting steel pipe 47 is provided with a spring buckle 48, a steel pipe fixing frame 50 is provided with a groove 49, and a positioning hole 2 is provided on the motor housing 21. The other end of the connecting steel pipe 47 is mounted on the steel pipe fixing frame 50 through the cooperation of the spring buckle 48 and the groove 49, and the connecting steel pipe 47 is mounted on the motor housing 21 through the cooperation of the spring buckle 48 and the positioning hole 2, and the lifting handle 45 is provided with an anti-slip stripe 44. Fig.11 As shown, a second wire hanging head 46 is provided on the lifting handle 45 and is placed near the connecting steel pipe 47. The second wire hanging head 46 on the lifting handle 45 corresponds to the first wire hanging head 14 on the motor housing 21 in upper and lower directions. A limiting groove 67 is provided on the lifting handle 45, and a limiting protrusion 66 matching the limiting groove 67 is provided on the second wire hanging head 46. The second wire hanging head 46 is rotatably connected to the lifting handle 45 through the cooperation of the limiting protrusion 66 and the limiting groove 67.

[0045] like Fig. 9 , Fig.10 As shown, a floor brush assembly 8 is provided at the air inlet 61 of the dust cup 6, and the floor brush assembly 8 includes a floor brush upper cover 7, a floor brush baffle 54 and a floor brush connecting rod 51. The floor brush upper cover 7 is installed on the floor brush baffle 54, and a large roller 52 is installed at the rear end of the floor brush upper cover 7. A dust suction chamber 57 is provided at the front end of the floor brush baffle 54, and a roller groove 59 is provided on the floor brush baffle 54 and at the front end of the dust suction chamber 57. A roller shaft 55 is provided in the roller groove 59, and a small roller 56 is provided on the roller shaft 55. The small roller 56 is rotatably connected to the roller groove 59 through the roller shaft 55. The floor brush baffle 54 is provided on the dust suction chamber 57. A scraper strip groove 69 is provided at the rear end, and a floor brush strip 68 is provided in the scraper strip groove 69. The floor brush strip 68 is rotatably connected to the scraper strip groove 69. An air inlet channel 58 is provided between the floor brush upper cover 7 and the floor brush baffle 54. The dust suction chamber 57 is connected with the air inlet channel 58. The floor brush connecting rod 51 is installed between the rear end of the floor brush upper cover 7 and the rear end of the floor brush baffle 54. A slide groove is provided on the floor brush upper cover 7, and a floor brush baffle 53 is provided in the slide groove. One end of the floor brush connecting rod 51 is connected with the air inlet channel 58 and is placed at the position where the floor brush baffle 53 is located. The other end of the floor brush connecting rod 51 is inserted into the air inlet pipe 60 of the dust collecting cup 6.

[0046] When the floor brush assembly 8 is not installed, when the vacuum cleaner (HJL-2007) is working, the bottom slope 13 of the dust cup 6 contacts the dust collecting ground, and the airflow enters from the air inlet 61 of the dust cup 6 along the air inlet pipe 60. When passing through the dust shield ring 62, the sealing spring 19 is pushed open by the airflow, and then enters the air inlet section 27 of the filter screen cover 63. Then the airflow enters the air guide 42 along the air inlet section 27 and is discharged from the air outlet 38 of the filter section 25. Since a dust shield 37 is provided at the air outlet 38, the dust shield 37 is pushed open by the airflow, and the airflow is guided by the dust shield 37, so that the airflow is tangential to the inner wall of the dust cup 6. Therefore, the airflow is always in a circular motion inside the dust cup 6, and part of the dust is trapped in the dust cup 6 by the filter section 25 of the filter screen cover 63, and is affected by the dust cup. The umbrella-shaped dust suppressor ring 26 on 6 causes the dust to gather at the bottom of the dust cup 6, and the remaining dust enters the interior of the filter cover 63 through the filter mesh holes 65 on the filter section 25, and is discharged from the air outlet section of the filter cover 63. A filter bracket 29 is provided in the air outlet section, and the air flow needs to pass through the PET composite filter layer 36 on the filter bracket 29, so that the dust in the air flow is trapped in the filter cover 63, and then the air flow passes through the PET composite filter layer 36 to the filter sponge 23 to be filtered again, and then is attracted by the vacuum motor 22 and discharged from the exhaust mesh port 16 of the motor housing 21. An exhaust sponge is also designed at the exhaust mesh port 16 to prevent external dust from entering the motor housing 21, and an exhaust slope 18 is designed to make the exhausted air flow move toward the front of the vacuum cleaner, ensuring that the rear of the vacuum cleaner is clean and tidy. When the floor brush assembly 8 is needed, it is only necessary to insert the floor brush connecting rod 51 into the air inlet duct 60 of the dust cup 6, the floor brush baffle 54 contacts the dusty ground, and then the floor brush strip 68 acts on the ground, and at the same time the dust suction chamber 57 performs a dust suction operation on the ground, and the large roller 52 and the small roller 56 can facilitate the movement of the floor brush assembly 8 on the ground, and the floor brush baffle 53 prevents dust leakage.

Claims

1. A vibration-reducing and noise-reducing vacuum cleaner, characterized in that: The invention comprises a dust collecting cup (6), a motor assembly (3) and a handle assembly (1); a filter screen cover (63) is arranged inside the dust collecting cup (6); an air inlet pipe (60) is arranged at the inner bottom of the dust collecting cup (6); an air inlet (61) is formed at the connection point between the bottom of the dust collecting cup (6) and one end of the air inlet pipe (60); a dust shield ring (62) is arranged at the other end of the air inlet pipe (60); the air inlet pipe (60) is sealedly connected to the lower end of the filter screen cover (63) via the dust shield ring (62); and the filter screen cover (63) is sealed at the lower end of the filter screen cover (63). The upper end is sealed and connected to the motor assembly (3); the handle assembly (1) is mounted on the motor assembly (3); the filter screen cover (63) comprises an air inlet section (27), a filter section (25) and an air exhaust section (24); one end of the air inlet section (27) is sealed and connected to the air inlet pipe (60) via a dust shield ring (62); the other end of the air inlet section (27) is connected to the lower end of the filter section (25); the upper end of the filter section (25) is connected to the air exhaust section (24); the lower end of the filter section (25) is provided with an umbrella-shaped pressure relief valve; A dust ring (26), wherein the umbrella-shaped dust suppressing ring (26) is oriented in the direction of the air inlet section (27), the filter section (25) is provided with a plurality of filter mesh holes (65), the side of the filter section (25) is provided with an air outlet (38), an air guide pipe (42) is provided inside the filter section (25), the air guide pipe (42) is in an L-shape, one end of the air guide pipe (42) is connected to the air inlet section (27), the other end of the air guide pipe (42) is connected to the air outlet (38), and the air guide pipe (42) The turning point adopts an arc transition structure, one end of the air guide pipe (42) communicating with the air outlet (38) is provided with a slot (43), a dust shield (37) is provided in the slot (43), the dust shield (37) is in an L-shape, the dust shield (37) is made of elastic material, one end of the dust shield (37) is installed in the slot (43), the other end of the dust shield (37) covers the position where the air outlet (38) is located, and the cross-section of the other end of the dust shield (37) is in an arc shape.

2. A vibration and noise reduction vacuum cleaner according to claim 1, characterized in that: An exhaust port (39) is provided inside the exhaust section (24), an annular groove (40) and a filter bracket (29) are provided inside the exhaust port (39) of the exhaust section (24), an annular sealing strip (41) is provided inside the annular groove (40), the filter bracket (29) is sealedly connected to the exhaust section (24) via the annular sealing strip (41), and the filter bracket (29) is placed between the filter screen cover (63) and the motor assembly (3).

3. A vibration and noise reduction vacuum cleaner according to claim 1 or 2, characterized in that: A flanged sealing ring (30) is provided on the outer side of the exhaust port (39) of the exhaust section (24), a positioning step (70) is provided on the inner wall of the dust cup (6), and the filter screen cover (63) is sealedly connected to the dust cup (6) by cooperating with the flanged sealing ring (30) on the exhaust section (24) and the positioning step (70) on the dust cup (6).

4. A vibration-reducing and noise-reducing vacuum cleaner according to claim 2, characterized in that: The filter support (29) comprises a small circle (35) and a large circle (33); the diameter of the small circle (35) is smaller than the diameter of the large circle (33); the small circle (35) and the large circle (33) are concentric circles; the small circle (35) and the large circle (33) are connected via a connecting rib (32); a PET composite filter layer (36) is provided on one end surface of the small circle (35) facing the filter screen (63); the PET composite filter layer (36) and the filter support (29) are connected via ultrasonic waves; a handle (34) is provided on one end surface of the small circle (35) facing the motor assembly (3); a sealing ring groove (64) is provided on one end surface of the large circle (33) facing the motor assembly (3); an exhaust sealing ring (31) is provided in the sealing ring groove (64); and the filter support (29) is sealedly connected to the motor assembly (3) via the exhaust sealing ring (31).

5. A vibration-reducing and noise-reducing vacuum cleaner according to claim 4, characterized in that: A filter sponge (23) is provided between the filter support (29) and the motor assembly (3).

6. The vibration-reducing and noise-reducing vacuum cleaner according to claim 1, characterized in that: One end of the dust collecting cup (6) provided with an air inlet (61) is provided with an inclined surface (13), and the angle between the inclined surface (13) and the horizontal plane is 25°-30°.

7. The vibration-reducing and noise-reducing vacuum cleaner according to claim 1, characterized in that: The axis of the air inlet pipe (60) in the dust cup (6) is consistent with the axis of the air inlet section (27) on the filter screen cover (63).

8. The vibration-reducing and noise-reducing vacuum cleaner according to claim 1, characterized in that: The dust shield ring (62) comprises a ring body (28) and a ring cover (20); the dust shield ring (62) is mounted on the air inlet pipe (60) of the dust collecting cup (6) via the ring body (28); the ring cover (20) of the dust shield ring (62) is placed between the air inlet pipe (60) of the dust collecting cup (6) and the air inlet section (27) of the filter screen cover (63); the ring cover (20) is composed of a plurality of evenly distributed sealing spring sheets (19).

9. The vibration-reducing and noise-reducing vacuum cleaner according to claim 1, characterized in that: The motor assembly (3) comprises a motor housing (21), a dust collecting motor (22), a power cord (9), a power switch (4) and a dust cup switch (5); an air suction port is provided at the lower end of the motor housing (21); the dust collecting motor (22) is mounted in the motor housing (21) and is located at the position where the air suction port is located; an exhaust mesh port (16) is provided on the side of the motor housing (21); the exhaust mesh port (16) on the motor housing (21) corresponds to the dust collecting motor (22); the power cord (9) and the power switch (4) are mounted on the motor housing (21); the power cord (9) is electrically connected to the dust collecting motor (22) via the power switch (4); a gripping hole (15) is provided on the motor housing (21); and a wire hanger (14) is fixed on the motor housing (21) and is located at the position where the power cord (9) is located. A button groove 1 (10) is provided on the side of the motor housing (21) and the connection end with the dust cup (6), and a button groove 2 (11) is provided on the side of the dust cup (6) and the connection end with the motor housing (21). The button groove 1 (10) and the button groove 2 (11) cooperate with each other. The dust cup switch (5) is installed in the button groove 1 (10). A pressing spring is provided on the inner side of the upper end of the dust cup switch (5). The pressing spring is placed between the dust cup switch (5) and the button groove 1 (10). A clamping head is provided on the inner side of the lower end of the dust cup switch (5). A clamping hole (12) matching the clamping head is provided in the button groove 2 (11). A steel pipe fixing frame (50) is provided inside the upper end of the motor housing (21), and the handle assembly (1) is installed on the steel pipe fixing frame (50) of the motor housing (21).

10. A vibration and noise reduction vacuum cleaner according to claim 9, characterized in that: An exhaust sponge is provided inside the motor housing (21) and at the location where the exhaust mesh opening (16) is located. The exhaust mesh opening (16) includes a plurality of exhaust mesh holes (17). An exhaust inclined surface (18) is provided inside the exhaust mesh holes (17). An angle of 5°-15° is formed between the exhaust inclined surface (18) and the exhaust mesh holes (17). The exhaust inclined surface (18) is oriented in the direction of the dust cup switch (5).

11. A vibration and noise reduction vacuum cleaner according to claim 9 or 10, characterized in that: The handle assembly (1) comprises a lifting handle (45) and a connecting steel pipe (47), one end of the connecting steel pipe (47) is fixedly mounted on the lifting handle (45), the other end of the connecting steel pipe (47) is provided with a spring buckle (48), the steel pipe fixing frame (50) is provided with a groove (49), the motor housing (21) is provided with a positioning hole (2), the other end of the connecting steel pipe (47) is mounted on the steel pipe fixing frame (50) by means of the cooperation of the spring buckle (48) and the groove (49), the connecting steel pipe (47) is mounted on the motor housing (21) by means of the cooperation of the spring buckle (48) and the positioning hole (2), and the lifting handle (45) is provided with an anti-slip stripe (44).

12. A vibration and noise reduction vacuum cleaner according to claim 11, characterized in that: A second wire hanging head (46) is provided on the lifting handle (45) and is located near the connecting steel pipe (47). The second wire hanging head (46) on the lifting handle (45) corresponds to the first wire hanging head (14) on the motor housing (21) in upper and lower directions. A limiting groove (67) is provided on the lifting handle (45). A limiting protrusion (66) matching the limiting groove (67) is provided on the second wire hanging head (46). The second wire hanging head (46) is rotatably connected to the lifting handle (45) through the cooperation of the limiting protrusion (66) and the limiting groove (67).

13. The vibration-reducing and noise-reducing vacuum cleaner according to claim 1, characterized in that: A floor brush assembly (8) is provided at the air inlet (61) of the dust cup (6). The floor brush assembly (8) comprises a floor brush upper cover (7), a floor brush lower cover (54) and a floor brush connecting rod (51). The floor brush upper cover (7) is mounted on the floor brush lower cover (54). A large roller (52) is mounted at the rear end of the floor brush upper cover (7). A dust suction chamber (57) is provided at the front end of the floor brush lower cover (54). A roller groove (59) is provided on the floor brush lower cover (54) and at the front end of the dust suction chamber (57). A roller shaft (55) is provided in the roller groove (59). A small roller (56) is provided on the roller shaft (55). The small roller (56) is rotatably connected to the roller groove (59) via the roller shaft (55). A scraper groove (69) is provided at the rear end of the floor brush upper cover (7) and the floor brush lower cover (54), a floor brush strip (68) is provided in the scraper groove (69), and the floor brush strip (68) is rotatably connected to the scraper groove (69). An air inlet channel (58) is provided between the floor brush upper cover (7) and the floor brush lower cover (54), and the dust suction chamber (57) is connected to the air inlet channel (58). The floor brush connecting rod (51) is installed between the rear end of the floor brush upper cover (7) and the rear end of the floor brush lower cover (54). A slide groove is provided on the floor brush upper cover (7), and a floor brush baffle (53) is provided in the slide groove. One end of the floor brush connecting rod (51) is connected to the air inlet channel (58) and is placed at the position where the floor brush baffle (53) is located. The other end of the floor brush connecting rod (51) is plugged into the air inlet pipe (60) of the dust collecting cup (6).

14. The vibration-reducing and noise-reducing vacuum cleaner according to claim 9, characterized in that: The diameter of the air inlet section (27) of the filter screen (63) is 30-35 mm, and the power of the dust suction motor (22) is 600W-800W.

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