Rotatable single-motor assembly mechanism of vertical dust collector

Abstract

The invention provides a rotatable single-motor assembly mechanism of a vertical dust collector. The rotatable single-motor assembly mechanism comprises a floor brush shell; the main machine body of the vertical dust collector is arranged right above one side of the floor brush shell; the bottom of the noise reduction motor assembly abuts against the bottom end of one side of the floor brush shell, and the noise reduction motor assembly is clamped to the left side and the right side of the top of the floor brush shell. The top of the left-right limiting connecting module is clamped to the bottom of the vertical dust collector main body, and the bottom of the left-right limiting connecting module is clamped to the top of the noise reduction motor assembly. The top of the front-back limiting connecting module is clamped to the side, close to the main machine body of the vertical dust collector, of the top of the ground brush shell through bolt connection, and the top of the front-back limiting connecting module makes contact with the left-right limiting connecting module, so that the single-motor motor assembly does front-back-left-right movement on the ground brush assembly, and the noise reduction motor assembly is improved; the inner cover shell and the outer cover shell are arranged on the outer side of the motor, noise reduction cotton is arranged between every two layers of cover shells, the inner cover shell is provided with the air inlet barrier and the air outlet barrier to divide and divide motor point air channels, and noise of the whole machine is greatly reduced.

Description

Technical Field

[0001] The invention relates to the field of vacuum cleaner motors, in particular to the technical field of rotatable motors for upright vacuum cleaners, and specifically to a rotatable single motor assembly mechanism for an upright vacuum cleaner. Background Art

[0002] In the case of an upright vacuum cleaner in the prior art, the motor assembly is a single motor, and the motor assembly structure is fixed to the main body as a whole. The motor assembly can only swing forward and backward relative to the brush assembly, and cannot move left and right, which has great restrictions during use. If a dual-motor motor assembly is used to control the left and right twisting of the body assembly, the structure of the limiting structure is complex, the processing cost is high, it is not convenient for installation and subsequent maintenance, and the control reliability is complex. In addition, the noise used in traditional upright vacuum cleaners is large, which limits the use scenarios of upright vacuum cleaners. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a rotatable single motor assembly mechanism for an upright vacuum cleaner, so as to solve the difficulties of the prior art.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides a rotatable single motor assembly mechanism for an upright vacuum cleaner, comprising:

[0005] Floor brush housing 1;

[0006] An upright vacuum cleaner main body 2, wherein the upright vacuum cleaner main body 2 is arranged directly above one side of the floor brush housing 1;

[0007] A noise reduction motor assembly 3, the bottom of which is against the bottom end of one side of the floor brush housing 1, and the left and right sides of the noise reduction motor assembly 3 are clamped on the top of the floor brush housing 1;

[0008] The left and right limit connection modules 4, the top of the left and right limit connection modules 4 is clamped on the bottom of the main body 2 of the upright vacuum cleaner, and the bottom of the left and right limit connection modules 4 is clamped on the top of the noise reduction motor assembly 3;

[0009] The front and rear limit connection modules 5 are bolted to the top of the floor brush housing 1 close to the main body 2 of the upright vacuum cleaner. The top of the front and rear limit connection modules 5 is in contact with the left and right limit connection modules 4. The bottom of the front and rear limit connection modules 5 is arranged on the inner side wall of the bottom of the floor brush housing 1. The bottom of the front and rear limit connection modules 5 is in contact with the noise reduction motor assembly 3.

[0010] According to the preferred embodiment, the noise reduction motor assembly 3 includes: a motor 31, a motor inner shell 32 and a motor outer shell 37. A rotating shaft is passed through one side of the motor 31, and a motor inner shell 32 is mounted on the outside of the motor 31. An air outlet grille 33 is opened around the motor inner shell 32 at equal intervals on the side close to the rotating shaft, and an air inlet grille 34 is opened around the motor inner shell 32 at equal intervals on the side away from the rotating shaft. A layer of noise reduction cotton 35 is attached to the inner side wall of the motor inner shell 32 on the side close to the air outlet grille 33. The layer of noise reduction cotton 35 is wrapped around the outer side of the stator in the motor 31 on the side away from the motor inner shell 32. The direction of the motor inner shell 32 close to the air outlet grille 33 and the air inlet grille 34 is A supporting and positioning slot 36 is provided on the top, the motor housing 37 is sleeved on the outside of the motor inner housing 32, a connecting card plate 38 is provided on the inner wall of the motor housing 37, and the connecting card plate 38 is clamped in the supporting and positioning slot 36, a sound insulation cavity 39 is provided between the inner wall of the motor housing 37 and the outer wall of the motor inner housing 32, and the sound insulation cavity 39 is filled with two layers of noise reduction cotton 310, and air inlet and outlet holes 311 are provided at equal intervals on the front and rear sides of the motor housing 37, a connecting pipe 312 is provided on one side of the top of the motor housing 37, and a card slot 313 is provided on the front and rear sides of the top of the connecting pipe 312, and a power cord inlet 314 is provided on one side of the motor housing 37.

[0011] According to a preferred embodiment, the outer contour of the motor housing 37 is spherical.

[0012] According to a preferred embodiment, the air outlet grille 33 and the air inlet grille 34 may be circular holes or polygonal holes.

[0013] According to the preferred solution, the left and right limit connection modules 4 include:

[0014] The adapter 41, the top of the adapter 41 is clamped on the bottom of the main body 2 of the upright vacuum cleaner, and the bottom of the adapter 41 is clamped in the connecting pipe 312 at an angle downward;

[0015] A rotation limiting groove 42, which is provided at the front and rear sides of the bottom of the adapter 41;

[0016] The connecting plug block 43 has a top that is clamped in the clamping groove 313, and a bottom that passes through the connecting pipe 312 and is clamped in the rotation limiting groove 42. The length and width of the top of the connecting plug block 43 are the same as the inner diameter of the bottom of the clamping groove 313, and the length and width of the bottom of the connecting plug block 43 are greater than the inner diameter of the clamping groove 313.

[0017] According to the preferred solution, the front and rear limit connection module 5 includes:

[0018] A dust cup base 51, wherein the dust cup base 51 is sleeved on the top of the adapter 41 and is located below the main body 2 of the upright vacuum cleaner;

[0019] A standing fixing frame 52, the standing fixing frame 52 is arranged on the top of the floor brush housing 1 near the side of the noise reduction motor assembly 3 by bolt connection, the standing fixing frame 52 is sleeved on the top of the motor housing 37, one side of the top of the standing fixing frame 52 contacts the outer side wall of the connecting pipe 312, and a standing card slot 53 is arranged between the contact surface between the top of the standing fixing frame 52 and the outer side wall of the connecting pipe 312;

[0020] A support block 54, wherein the support block 54 is disposed on one side of the bottom end of the dust cup base 51 close to the main body 2 of the upright vacuum cleaner, and the bottom of the support block 54 is clamped in the standing card slot 53;

[0021] An installation stopper protrusion 55 is provided at the center of the bottom of the motor housing 37;

[0022] A motor mounting groove 56, wherein the motor mounting groove 56 is arranged on one side of the floor brush housing 1, and an arc-shaped supporting surface 57 is arranged on one side of the bottom of the motor mounting groove 56, and the arc-shaped supporting surface 57 contacts with a side of the outer wall of the motor housing 37 close to the supporting block 54;

[0023] A threaded connection platform 58, wherein the threaded connection platform 58 is disposed in the motor mounting groove 56 and above the arc-shaped support surface 57;

[0024] The motor backward limit groove 59 is provided at the bottom of the arc-shaped support surface 57, one side of the motor backward limit groove 59 is located directly below the installation stop protrusion 55, and the top of the motor backward limit groove 59 is a motor backward limit block 510;

[0025] A metal spring 511 is arranged between the arc-shaped supporting surface 57 and the motor housing 37. The top of the metal spring 511 is connected to the threaded connecting platform 58 by bolts. The bottom of the metal spring 511 extends along the arc-shaped supporting surface 57 through the motor reclining limit groove 59 and the motor reclining limit block 510. An arc-shaped convex surface 512 is arranged on the section of the metal spring 511 between the mounting stop protrusion 55 and the motor reclining limit block 510. One side of the arc-shaped convex surface 512 abuts against the mounting stop protrusion 55. One side of the arc-shaped convex surface 512 is an arc-shaped concave surface 513. The arc-shaped concave surface 513 is sleeved on the bottom of the mounting stop protrusion 55.

[0026] According to a preferred embodiment, the inner diameter of the top of the standing slot 53 is greater than the inner diameter of the bottom.

[0027] According to a preferred embodiment, the adapter 41, the dust cup base 51 and the supporting block 54 are of an integrated structure.

[0028] According to a preferred embodiment, a movable mounting platform 315 is provided at both ends of the motor housing 37, and the outer diameter of the movable mounting platform 315 close to the motor housing 37 is smaller than the outer diameter of the other side. The floor brush housing 1 and the standing fixed frame 52 are close to the motor housing 37 and are close to each other. A movable mounting slot 11 is provided at one end, and the inner diameter of the middle section of the movable mounting slot 11 is larger than the inner diameter of the front and rear ends. The side of the movable mounting platform 315 away from the motor housing 37 is stuck in the middle section of the movable mounting slot 11.

[0029] According to a preferred solution, the maximum outer diameter of the movable mounting platform 315 is greater than the minimum aperture of the movable mounting slot hole 11 .

[0030] The present invention adopts a floor brush shell, a noise reduction motor assembly, a front and rear limit connection module and a left and right limit connection module, and realizes the single motor assembly to move the floor brush assembly forward, backward, left and right, and improves the noise reduction motor assembly. Inner and outer cover shells are arranged on the outside of the motor, noise reduction cotton is arranged between each layer of the cover shell, and the inner cover shell is provided with an air inlet grille and an air outlet grille to divide and divert the motor point air duct, thereby greatly reducing the noise of the whole product.

[0031] The best embodiment for carrying out the present invention will be described in more detail below with reference to the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It shows a schematic diagram of the three-dimensional structure of the present invention in a forward leaning standing state;

[0033] Figure 2 Shown is a mid-section view of the present invention in a standing state;

[0034] Figure 3 Display as Figure 2 The enlarged schematic diagram of point A in the middle;

[0035] Figure 4 Shown is a schematic diagram of the three-dimensional structure of the present invention in a left-turning state;

[0036] Figure 5 Display as Figure 4 Cross-sectional view of the floor brush housing in the state;

[0037] Figure 6 Shown is an enlarged view of the three-dimensional structure of the noise reduction motor assembly of the present invention;

[0038] Figure 7 Shown is a front view of the noise reduction motor assembly of the present invention and a mid-section view on both sides of AB;

[0039] Figure 8 Shown is a schematic diagram of the internal structure of the noise reduction motor assembly of the present invention;

[0040] Fig. 9 Shown is a schematic diagram of the three-dimensional structure of the transfer joint of the present invention;

[0041] Fig.10 Shown is a schematic diagram of the three-dimensional structure of the floor brush housing of the present invention;

[0042] Fig.11 It is a schematic diagram of the three-dimensional structure of the metal spring of the present invention.

[0043] Marking Description

[0044] 1. Floor brush housing; 11. Movable installation slot;

[0045] 2. The main body of the upright vacuum cleaner;

[0046] 3. Noise reduction motor assembly; 31. Motor; 32. Motor inner shell; 33. Air outlet grille; 34. Air inlet grille; 35. One layer of noise reduction cotton; 36. Support positioning slot; 37. Motor shell; 38. Connecting card plate; 39. Sound insulation cavity; 310. Two layers of noise reduction cotton; 311. Air inlet and outlet holes; 312. Connecting pipe; 313. Card slot; 314. Power cord inlet; 315. Movable mounting table;

[0047] 4. Left and right limit connection modules; 41. adapter; 42. rotation limit slot; 43. connection plug;

[0048] 5. Front and rear limit connection module; 51. Dust cup base; 52. Standing fixing frame; 53. Standing slot; 54. Support block; 55. Installation stop protrusion; 56. Motor mounting slot; 57. Arc-shaped support surface; 58. Threaded connection platform; 59. Motor backward limit slot; 510. Motor backward limit block; 511. Metal spring; 512. Arc-shaped convex surface; 513. Arc-shaped concave surface. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Compared to the embodiments shown in the drawings, feasible embodiments within the scope of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0051] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate a quantity limitation. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] The present invention proposes a rotatable single-motor assembly mechanism for an upright vacuum cleaner, which is used in the design process of a rotatable motor for an upright vacuum cleaner. The present invention makes improvements to an upright vacuum cleaner with a single motor. The floor brush housing 1, the noise reduction motor assembly 3, the front and rear limit connection module 5 and the left and right limit connection module 4 structure are particularly suitable for realizing that a single motor module can also control the forward, backward, left and right swinging and twisting of the fuselage, and the improved motor 31 reduces the internal noise of the motor 31.

[0053] In general, the rotatable single motor assembly mechanism of the upright vacuum cleaner proposed in the present invention mainly includes: a floor brush housing 1, a noise reduction motor assembly 3, a front and rear limit connection module 5 and a left and right limit connection module 4, wherein, see Figure 1 , which shows the arrangement relationship of the floor brush housing 1, the noise reduction motor assembly 3, the front and rear limit connection modules 5 and the left and right limit connection modules 4.

[0054] The present invention provides a rotatable single motor assembly mechanism for an upright vacuum cleaner, wherein Figure 1 In the forward leaning standing state, the vertical angle between the main body 2 of the upright vacuum cleaner and the bottom plane of the floor brush housing 1 or the ground in the schematic diagram is 11°. At this time, the relationship between the noise reduction motor assembly 3 and the front and rear limit connection modules 5 is as follows: Figure 2At this time, the bottom of the support block 54 is stuck in the standing slot 53 at the top of the standing fixing frame 52, and at the same time, the metal spring piece 511 is pushed by the installation stop protrusion 55, and the left and right sides of the arc-shaped convex surface 512 respectively abut against the motor backward limit block 510 and the installation stop protrusion 55. At this time, the main body 2 of the upright vacuum cleaner is in a locked state, which is the placement state of the upright vacuum cleaner when not in use. If it needs to be used, it only needs to be swung back. At this time, the support block 54 has an arc-shaped upward movement trajectory and will naturally break away from the standing slot 53, such as Figure 4 In the schematic diagram, the maximum backward adjustment angle is 70° from the vertical angle between the main body 2 of the upright vacuum cleaner and the bottom plane of the floor brush shell 1 or the ground. When the support block 54 is disengaged from the standing slot 53, the main body 2 of the upright vacuum cleaner enters an unlocked state, and the main body 2 of the upright vacuum cleaner can be rotated to the left or right. During rotation, the adapter 41 rotates in the connecting pipe 312 on the top side of the noise reduction motor assembly 3, and the maximum rotation angle is limited by rotating the limit groove 42 and the connecting plug block 43, so that the main body 2 of the upright vacuum cleaner can swing left and right.

[0055] The rotatable single motor assembly mechanism of the upright vacuum cleaner proposed by the present invention is as follows: Figure 7 As shown, two layers of inner and outer covers are arranged on the outside of the motor, noise reduction cotton is arranged between each layer of the cover, and an air outlet grille 33 and an air inlet grille 34 are arranged in the inner shell 32 of the motor, which can block and cut the airflow entering or discharged from the air inlet and outlet holes 311 of the motor shell 37, thereby greatly reducing the noise of the whole product, reducing the noise generated to the scene and the damage to the user's hearing during use, and increasing the comfort of use.

[0056] The bottom of the noise reduction motor assembly 3 is against the inner wall of the bottom end of one side of the floor brush housing 1, and the noise reduction motor assembly 3 is clamped on the inner walls of the left and right sides of the top of the floor brush housing 1. The noise reduction motor assembly 3 includes: a motor 31, a motor inner shell 32 and a motor outer shell 37. A rotating shaft is passed through one side of the motor 31, and the rotating shaft is used to control the rotation of the roller brush at the bottom of the other side of the floor brush housing 1. The motor inner shell 32 is mounted on the outside of the motor 31. The motor inner shell 32 is provided with air outlet grilles 33 at equal intervals around the side of the motor inner shell 32 close to the rotating shaft, and the motor inner shell 32 is provided with air inlet grilles 34 at equal intervals around the side away from the rotating shaft. The air outlet grilles 33 and the air inlet grilles 34 can be circular holes or polygonal holes. The air outlet grilles 33 and the air inlet grilles 34 divide the air duct in and out of the motor 31 to reduce noise. A layer of noise reduction cotton 35 is attached to the inner wall of the motor inner shell 32 on the side close to the air outlet grille 33. A layer of noise reduction cotton 35 is wrapped around the outside of the stator in the motor 31 away from the side of the motor inner shell 32. A support positioning slot 36 is opened in the direction of the motor inner shell 32 close to the air outlet grille 33 and the air inlet grille 34. The motor outer shell 37 is sleeved on the outside of the motor inner shell 32. A connecting card plate 38 is arranged on the inner wall of the motor outer shell 37. The connecting card plate 38 is clamped in the support positioning slot 36. A sound insulation cavity 39 is arranged between the inner wall of the motor outer shell 37 and the outer wall of the motor inner shell 32. The sound insulation cavity 39 is filled with two layers of noise reduction cotton 310. The double-layer noise reduction cotton is arranged to reduce the noise of the motor 31 during operation. Air inlet and outlet holes 311 are opened at equal intervals on the front and rear sides of the motor outer shell 37. A connecting pipe 312 is penetrated on one side of the top of the motor outer shell 37. Card connection grooves 313 are opened on the front and rear sides of the top of the connecting pipe 312. A power cord inlet 314 is penetrated on one side of the motor outer shell 37.

[0057] The top of the left and right limit connection module 4 is clamped on the bottom of the main body 2 of the upright vacuum cleaner, and the bottom of the left and right limit connection module 4 is clamped on the top of the noise reduction motor assembly 3. The left and right limit connection module 4 includes: an adapter 41, a rotation limit groove 42 and a connecting plug 43, wherein the top of the adapter 41 is clamped on the bottom of the main body 2 of the upright vacuum cleaner, and the bottom of the adapter 41 is tilted downward and clamped in the connecting pipe 312, with an angle between the top and the bottom, and the top of the connecting pipe 312 rotates and swings with the bottom of the connecting pipe 312 or the central axis of the connecting pipe 312 as the rotating axis, and the rotation limit groove 42 is arranged on the front and rear sides of the bottom of the adapter 41. The top of the block 43 is clamped in the clamping groove 313, and the bottom of the connecting block 43 passes through the connecting pipe 312 and is clamped in the rotation limiting groove 42. The length and width of the top of the connecting block 43 are the same as the inner diameter of the bottom of the clamping groove 313, and the length and width of the bottom of the connecting block 43 are greater than the inner diameter of the clamping groove 313, which prevents the connecting block 43 from being separated from the clamping groove 313. When the bottom of the adapter 41 rotates in the connecting pipe 312, the bottom of the connecting block 43 moves left and right along the rotation limiting groove 42, and the inner groove side walls on the left and right sides of the rotation limiting groove 42 press against the connecting block 43 to stop the adapter 41, and the rotation angle of the adapter 41 is limited according to the groove length of the rotation limiting groove 42.

[0058] The top of the front and rear limit connection module 5 is connected and clamped on the top of the floor brush shell 1 near the side of the main body 2 of the upright vacuum cleaner through bolt connection. The top of the front and rear limit connection module 5 contacts the left and right limit connection modules 4. The bottom of the front and rear limit connection module 5 is set on the inner wall of the bottom of the floor brush shell 1. The bottom of the front and rear limit connection module 5 contacts the noise reduction motor assembly 3. The front and rear limit connection module 5 includes: a dust cup base 51, a standing fixed frame 52, a supporting block 54, an installation stop protrusion 55, a motor installation groove 56, a threaded connection platform 58, a motor backward limit groove 59 and a metal spring 511, wherein the dust cup base 51 is sleeved on the top of the adapter 41 and is located in the upright vacuum cleaner. Below the main body 2, a standing fixing frame 52 is provided on the top of the floor brush shell 1 near the side of the noise reduction motor assembly 3 through bolt connection, and the standing fixing frame 52 is sleeved on the top of the motor housing 37, and one side of the top of the standing fixing frame 52 contacts the outer wall of the connecting pipe 312, and a standing card slot 53 is provided between the contact surface between the top of the standing fixing frame 52 and the outer wall of the connecting pipe 312, and the top inner diameter of the standing card slot 53 is larger than the bottom inner diameter to prevent the support card block 54 from being stuck in the standing card slot 53, and the support card block 54 is arranged on the bottom end of the dust cup base 51 near the side of the main body 2 of the upright vacuum cleaner, and the top outer diameter of the support card block 54 is larger than the bottom outer diameter, and the bottom of the support card block 54 is stuck in In the standing card slot 53, an installation stop protrusion 55 is arranged in the middle of the bottom of the motor housing 37, and a motor installation slot 56 is arranged on one side of the floor brush housing 1. An arc-shaped supporting surface 57 is arranged on one side of the bottom of the motor installation slot 56. The arc-shaped supporting surface 57 contacts the side of the outer wall of the motor housing 37 close to the supporting card block 54. A threaded connection platform 58 is arranged above the arc-shaped supporting surface 57 in the motor installation slot 56. A motor backward limit slot 59 is provided at the bottom of the arc-shaped supporting surface 57. One side of the motor backward limit slot 59 is located directly below the installation stop protrusion 55. The top of the motor backward limit slot 59 is a motor backward limit block 510. A metal spring piece 511 is arranged between the motor and the motor, and the top of the metal spring piece 511 is connected to the threaded connection platform 58 by a bolt, and the bottom of the metal spring piece 511 extends along the arc-shaped support surface 57 through the motor rearward limit groove 59 and the motor rearward limit block 510. The metal spring piece 511 is provided with an arc-shaped convex surface 512 on the section between the installation stop protrusion 55 and the motor rearward limit block 510. One side of the arc-shaped convex surface 512 is against the installation stop protrusion 55, and one side of the arc-shaped convex surface 512 is an arc-shaped concave surface 513, and the arc-shaped concave surface 513 is sleeved on the bottom of the installation stop protrusion 55. It should also be noted that the adapter 41, the dust cup base 51 and the support block 54 are integrated into a high strength structure.

[0059] It should also be noted that movable mounting platforms 315 are provided at the front and rear ends of the motor housing 37, and the outer diameter of the movable mounting platform 315 close to the motor housing 37 is smaller than the outer diameter of the other side. The floor brush housing 1 and the standing fixing frame 52 are close to the motor housing 37 and are close to each other. A movable mounting slot 11 is provided at one end, and the inner diameter of the middle section of the movable mounting slot 11 is larger than the inner diameter of the front and rear ends. The side of the movable mounting platform 315 away from the motor housing 37 is stuck in the middle section of the movable mounting slot 11. When the main body 2 of the upright vacuum cleaner swings back and forth, the motor housing 37 rotates and swings along the central axis of the movable mounting platform 315, and the movable mounting platform 315 is limited in the movable mounting slot 11.

[0060] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A rotatable single motor assembly mechanism for an upright vacuum cleaner, characterized in that: include: Floor brush housing (1); An upright vacuum cleaner main body (2), wherein the upright vacuum cleaner main body (2) is arranged directly above one side of the floor brush housing (1); A noise reduction motor assembly (3), wherein the bottom of the noise reduction motor assembly (3) is disposed against the bottom end of one side of the floor brush housing (1), and the left and right sides of the noise reduction motor assembly (3) are clamped on the left and right sides of the top of the floor brush housing (1); A left and right limit connection module (4), the top of the left and right limit connection module (4) being clamped on the bottom of the main body (2) of the upright vacuum cleaner, and the bottom of the left and right limit connection module (4) being clamped on the top of the noise reduction motor assembly (3); A front and rear limit connection module (5), the top of the front and rear limit connection module (5) is fixed to the top of the floor brush housing (1) close to the side of the main body (2) of the upright vacuum cleaner through a bolt connection, the top of the front and rear limit connection module (5) is in contact with the left and right limit connection modules (4), the bottom of the front and rear limit connection module (5) is arranged on the inner side wall of the bottom of the floor brush housing (1), and the bottom of the front and rear limit connection module (5) is in contact with the noise reduction motor assembly (3).

2. The rotatable single motor assembly mechanism for an upright vacuum cleaner according to claim 1, characterized in that: The noise reduction motor assembly (3) comprises: a motor (31), a motor inner shell (32) and a motor outer shell (37); a rotating shaft is passed through one side of the motor (31); the motor inner shell (32) is mounted on the outer side of the motor (31); an air outlet grille (33) is opened at equal intervals around the side of the motor inner shell (32) close to the rotating shaft; an air inlet grille (34) is opened at equal intervals around the side of the motor inner shell (32) away from the rotating shaft; a layer of noise reduction cotton (35) is attached to the inner side wall of the motor inner shell (32) close to the air outlet grille (33); the layer of noise reduction cotton (35) is wrapped around the outer side of the stator in the motor (31) on the side away from the motor inner shell (32); the motor inner shell (32) is opened in the direction close to the air outlet grille (33) and the air inlet grille (34). A support positioning slot (36) is provided, the motor housing (37) is sleeved on the outside of the motor inner housing (32), a connecting card plate (38) is provided on the inner wall of the motor housing (37), the connecting card plate (38) is clamped in the support positioning slot (36), a sound insulation cavity (39) is provided between the inner wall of the motor housing (37) and the outer wall of the motor inner housing (32), the sound insulation cavity (39) is filled with two layers of noise reduction cotton (310), the motor housing (37) is provided with air inlet and outlet holes (311) at equal intervals on both sides of the front and rear, a connecting pipe (312) is provided on one side of the top of the motor housing (37), and the connecting pipe (312) is provided with clamping slots (313) on both sides of the front and rear of the top, and a power line inlet (314) is provided on one side of the motor housing (37).

3. The rotatable single motor assembly mechanism for an upright vacuum cleaner according to claim 2, characterized in that: The outer contour of the motor housing (37) is spherical.

4. The rotatable single motor assembly mechanism for an upright vacuum cleaner according to claim 3, characterized in that: The air outlet grille (33) and the air inlet grille (34) may be circular holes or polygonal holes.

5. The rotatable single motor assembly mechanism for an upright vacuum cleaner according to claim 4, characterized in that: The left and right limit connection modules (4) include: An adapter (41), the top of the adapter (41) being clamped on the bottom of the main body (2) of the upright vacuum cleaner, and the bottom of the adapter (41) being clamped in a downwardly inclined manner in the connecting pipe (312); A rotation limiting groove (42), wherein the rotation limiting groove (42) is provided at the front and rear sides of the bottom of the adapter (41); A connecting plug block (43), wherein the top of the connecting plug block (43) is clamped in the clamping groove (313), and the bottom of the connecting plug block (43) passes through the connecting pipe (312) and is clamped in the rotation limiting groove (42), the length and width of the top of the connecting plug block (43) are the same as the inner diameter of the bottom of the clamping groove (313), and the length and width of the bottom of the connecting plug block (43) are greater than the inner diameter of the clamping groove (313).

6. The rotatable single motor assembly mechanism for an upright vacuum cleaner according to claim 5, characterized in that: The front and rear limit connection module (5) comprises: A dust cup base (51), wherein the dust cup base (51) is sleeved on the top of the adapter (41) and is located below the main body (2) of the upright vacuum cleaner; A standing fixing frame (52), the standing fixing frame (52) being arranged on a side of the top of the floor brush housing (1) close to the noise reduction motor assembly (3) by bolt connection, the standing fixing frame (52) being sleeved on the top of the motor housing (37), one side of the top of the standing fixing frame (52) being in contact with the outer side wall of the connecting pipe (312), and a standing card slot (53) being arranged between the contact surfaces between the top of the standing fixing frame (52) and the outer side wall of the connecting pipe (312); A support card block (54), the support card block (54) being arranged on a side of the bottom end of the dust cup base (51) close to the main body (2) of the upright vacuum cleaner, and the bottom of the support card block (54) being clamped in the standing card slot (53); An installation stopper protrusion (55) is arranged in the middle of the bottom of the motor housing (37); A motor mounting groove (56), the motor mounting groove (56) being arranged on one side of the floor brush housing (1), an arc-shaped supporting surface (57) being arranged on one side of the bottom of the motor mounting groove (56), the arc-shaped supporting surface (57) being in contact with a side of the outer wall of the motor housing (37) close to the supporting block (54); A threaded connection platform (58), wherein the threaded connection platform (58) is arranged in the motor mounting groove (56) and is located above the arc-shaped support surface (57); A motor backward limit groove (59), wherein the motor backward limit groove (59) is arranged at the bottom of the arc-shaped support surface (57), one side of the motor backward limit groove (59) is located directly below the installation stop protrusion (55), and the top of the motor backward limit groove (59) is a motor backward limit block (510); A metal spring (511), the metal spring (511) is arranged between the arc-shaped support surface (57) and the motor housing (37), the top of the metal spring (511) is connected to the threaded connection platform (58) by a bolt, the bottom of the metal spring (511) extends along the arc-shaped support surface (57) through the motor backward limit groove (59) and the motor backward limit block (510), and the metal spring (511) is provided with an arc-shaped convex surface (512) on the section between the installation stop protrusion (55) and the motor backward limit block (510), one side of the arc-shaped convex surface (512) abuts against the installation stop protrusion (55), and one side of the arc-shaped convex surface (512) is an arc-shaped concave surface (513), and the arc-shaped concave surface (513) is sleeved on the bottom of the installation stop protrusion (55).

7. The rotatable single motor assembly mechanism for an upright vacuum cleaner according to claim 6, characterized in that: The adapter (41), the dust cup base (51) and the supporting block (54) are of an integrated structure.

8. The rotatable single motor assembly mechanism for an upright vacuum cleaner according to claim 7, characterized in that: The motor housing (37) is provided with movable mounting platforms (315) at both ends, and the outer diameter of the movable mounting platform (315) on the side close to the motor housing (37) is smaller than the outer diameter of the other side. The floor brush housing (1) and the standing fixed frame (52) are provided with movable mounting slots (11) at one end close to the motor housing (37) and close to each other. The inner diameter of the middle section of the movable mounting slot (11) is larger than the inner diameters of the front and rear ends. The side of the movable mounting platform (315) away from the motor housing (37) is clamped in the middle section of the movable mounting slot (11).

9. The rotatable single motor assembly mechanism for an upright vacuum cleaner according to claim 8, characterized in that: The maximum outer diameter of the movable mounting platform (315) is greater than the minimum aperture of the movable mounting slot hole (11).

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