A vacuum cleaner floor brush

Abstract

This invention provides a vacuum cleaner floor brush, relating to the field of cleaning equipment technology, comprising: a housing with an internal mounting cavity; a first supporting member detachably connected to the housing and forming a first end; a second supporting member fixedly connected to the housing and forming a second end; and a roller brush with a hollow interior, wherein the first and second supporting members are respectively placed at both ends inside the roller brush, and the first supporting member is fixedly connected to the roller brush; guide gaps are formed between the two end walls of the roller brush and the first and second ends, respectively; and a receiving groove is formed between the inner wall of the roller brush and the outer walls of the first and second supporting members, and the receiving groove communicates with the guide gaps. This invention guides the hair accumulated at both ends of the roller brush into the receiving groove, preventing the hair from rubbing against the housing and causing the housing to deform and jam the roller brush, thus ensuring the stability of the roller brush rotation.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, in particular to a floor brush for a vacuum cleaner. Background Art

[0002] A vacuum cleaner floor brush is an accessory used in conjunction with a vacuum cleaner host. There are many types of vacuum cleaner floor brushes. Depending on the applicable models, they can be divided into brush heads for upright vacuum cleaners and floor brushes for horizontal vacuum cleaners. Usually, an upright vacuum cleaner floor brush is directly and movably connected to the vacuum cleaner host bracket for use; a horizontal vacuum cleaner floor brush is usually detachably connected to a telescopic connecting rod that the user can hold and extend.

[0003] At present, the electric floor brush of vacuum cleaners on the market is easy to get hair entangled in the roller brush body when cleaning the floor, especially when too much hair accumulates in the gap formed by the left and right end faces of the roller brush body and the inner surface of the left and right side covers, forming a friction medium. In addition, since the roller brush body rotates at high speed and generates heat due to friction, the side cover and the end face of the roller brush body are partially deformed and melted, causing the roller brush body to get stuck and fail to work normally. Therefore, there is room for improvement in the existing vacuum cleaner floor brush. Summary of the invention

[0004] In view of the shortcomings of the prior art described above, an object of the present invention is to provide a vacuum cleaner floor brush, which is used to solve the problem in the prior art that hair is easily accumulated at both ends of the roller brush body during high-speed rotation, thereby causing friction between the hair and the vacuum cleaner shell to generate heat, causing the vacuum cleaner shell to partially melt and deform, and further causing the roller brush body to get stuck.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a vacuum cleaner floor brush, comprising: a shell body, an installation cavity is formed inside; a first support component is detachably fixedly connected to the shell body and forms a first end; a second support component is fixedly connected to the shell body and forms a second end; a roller brush, which is hollow inside, the first support component and the second support component are respectively placed at the two ends of the roller brush, and one end of the roller brush is fixedly connected to the first support component; guide gaps are formed between the two end walls of the roller brush and the first end and the second end respectively; a storage groove is formed between the inner wall of the roller brush and the outer walls of the first support component and the second support component, and the storage groove is connected to the guide gap.

[0006] In one embodiment of the present invention, the first supporting component includes: a fixing frame, which is detachably connected to the shell; a first pin shaft, which is coaxially arranged inside the fixing frame and rotatably connected to the fixing frame at both ends through bearings; a first limiter, which is fixedly connected to one end of the first pin shaft extending into the mounting cavity and is transmission-connected to the roller brush.

[0007] In one embodiment of the present invention, the fixing frame includes: a fixing plate, which is detachably connected to the shell; a first cylinder, one end of which is coaxially fixed to the fixing plate and the other end extends into the interior of the installation cavity; and a first blocking member, which is arranged on the outer wall of the first cylinder and is located at an end away from the fixing plate.

[0008] In one embodiment of the present invention, a first retaining ring is coaxially sleeved on the first cylinder, and the first retaining ring is located between the first blocking member and the first limiting member.

[0009] In one embodiment of the present invention, the second supporting component includes: a second cylinder, one end of which is fixedly connected to the inner wall of the shell; a second pin shaft, coaxially arranged inside the second cylinder, and both ends of which are rotatably connected to the second cylinder through bearings; a second limit member, fixedly connected to one end of the second pin shaft extending into the mounting cavity and transmission connected to the roller brush; a second blocking member, which is fixed around the outer wall of the second cylinder.

[0010] In one embodiment of the present invention, a second retaining ring is coaxially sleeved on the second cylinder, and the second retaining ring is located between the second blocking member and the second limiting member.

[0011] In one embodiment of the present invention, a power component is further installed inside the shell, and the power component drives the roller brush to rotate through the first supporting component and the second supporting component.

[0012] In one embodiment of the present invention, a brake ring is coaxially fixed inside one end of the roller brush connected to the first supporting component, and the brake ring is engaged with a first limiting member in the first supporting component.

[0013] In one embodiment of the present invention, the interior of one end of the roller brush connected to the second supporting component is engaged with the second limiter in the second supporting component, and the second pin in the second supporting component is drivingly connected to the power component.

[0014] In one embodiment of the present invention, the power component includes: a motor fixed on the housing and located close to the second supporting component; a driving gear coaxially fixed with the output shaft of the motor; a driven gear coaxially fixed with the end of the second pin shaft away from the second limiting member; and a toothed belt meshing with the driving gear and the driven gear.

[0015] In one embodiment of the present invention, the shell includes: a base; a floor brush cover fixed on the base and closing the position of the power component on the base; and a floor brush window fixed on the base and closing the installation cavity.

[0016] In one embodiment of the present invention, an opening is provided in the base at a central position of the installation cavity, and the opening is connected to an air duct in the vacuum cleaner through a hose.

[0017] In one embodiment of the present invention, the shell further includes: a first end cover fixedly connected to the fixing plate in the first supporting component; and a second end cover fixedly connected to the base and corresponding to the second supporting component.

[0018] In one embodiment of the present invention, a clamping groove is provided on the inner side wall of the first end cover, and a clamping block is movably provided on the base, and the clamping block is embedded and matched with the clamping groove.

[0019] In one embodiment of the present invention, a mounting groove is provided on the base, and the button on the card block is placed in the mounting groove and is reciprocated along the length direction of the mounting groove; a spring is fixed between the card block and the inner wall of the base to realize automatic resetting of the card block.

[0020] As described above, a vacuum cleaner floor brush of the present invention has the following beneficial effects:

[0021] 1. A receiving groove is formed between the inner side walls at both ends of the roller brush and the outer side walls of the first supporting component and the second supporting component, and the receiving groove is connected with the guide gap, so that the hair wound at both ends of the roller brush can pass through the guide gap and be placed in the receiving groove formed inside the roller brush, which can reduce the accumulation of excessive hair at both ends of the roller brush to form a friction medium, thereby avoiding the roller brush from being stuck due to the hair.

[0022] 2. The first retaining ring and the second retaining ring are respectively used to close the side of the receiving groove formed inside the roller brush away from the guide gap, thereby preventing the hair in the receiving groove from being caught in the meshing and fixing part of the first limit member and the brake ring, or the meshing and fixing part of the second limit member and the roller brush.

[0023] 3. The first retaining ring and the second retaining ring are respectively assembled with the inner wall of the brake ring and the inner wall of the roller brush by interference fit, so that when the power component stops working, the first retaining ring and the second retaining ring can play a braking role, which is convenient for quickly stopping the roller brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is an axonometric view of a vacuum cleaner floor brush according to an embodiment of the present invention;

[0025] Figure 2 Shown is an exploded schematic diagram of a housing of a floor brush for a vacuum cleaner in one embodiment of the present invention;

[0026] Figure 3 Shown is a schematic structural diagram of a roller brush in one embodiment of a floor brush for a vacuum cleaner of the present invention;

[0027] Figure 4 A schematic diagram showing a first supporting component of a floor brush for a vacuum cleaner in one embodiment of the present invention;

[0028] Figure 5 It is an exploded schematic diagram of a first supporting component of a floor brush for a vacuum cleaner in one embodiment of the present invention;

[0029] Figure 6 It is a schematic diagram showing the installation method of the first supporting component of a floor brush of a vacuum cleaner in one embodiment of the present invention;

[0030] Figure 7 Display as Figure 4 The enlarged view of the part A in the middle mainly shows the structure of the button;

[0031] Figure 8 Display as Figure 6 The enlarged view of the middle part B mainly shows the structure of the card block;

[0032] Fig. 9 A schematic diagram showing a second supporting component of a floor brush for a vacuum cleaner in one embodiment of the present invention;

[0033] Fig.10 It is an exploded schematic diagram of a second supporting component of a floor brush for a vacuum cleaner in one embodiment of the present invention;

[0034] Fig.11 Display as Fig. 9 The enlarged view of the middle part C mainly shows the structure of the power component;

[0035] Fig.12 Shown is a cross-sectional view of a floor brush for a vacuum cleaner according to an embodiment of the present invention.

[0036] Component number description

[0037] 1. Shell; 11. Base; 111. Installation cavity; 112. Opening; 12. Floor brush upper cover; 13. Floor brush window; 14. First end cover; 141. Card slot; 15. Second end cover; 16. Installation slot; 17. Button; 171. Card block; 18. Spring; 2. First supporting component; 21. Fixed frame; 211. Fixed plate; 212. First cylinder; 213. Block; 22. First pin shaft; 23. First position limiting member; 24. First retaining ring; 3. Second supporting component; 31. Second cylinder; 32. Second pin shaft; 33. Second position limiting member; 34. Baffle; 35. Second retaining ring; 4. Roller brush; 41. Brake ring; 5. Power component; 51. Motor; 52. Driving gear; 53. Driven gear; 54. Toothed belt; 6. Guide gap; 7. Storage groove. DETAILED DESCRIPTION

[0038] The following is an explanation of the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or according to the conditions recommended by the manufacturers.

[0039] See also Figures 1 to 12 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0040] See also Figure 1 , Figure 2 and Figure 4 The present invention provides a vacuum cleaner floor brush, comprising: a shell 1, a cylindrical mounting cavity 111 is formed inside; a first supporting component 2, which is detachably connected to the shell 1 and forms a first end (not shown in the figure), and the first end is located at one end of the mounting cavity 111; a second supporting component 3, which is fixedly connected to the shell 1 and forms a second end (not shown in the figure), and the second end is located at the other end of the mounting cavity 111; a roller brush 4, which is cylindrical and hollow, the first supporting component 2 and the second supporting component 3 are placed at both ends of the hollow part of the roller brush 4, and the two ends of the roller brush 4 are detachably fixedly connected to the first supporting component 2 and the second supporting component 3 respectively; a power component 5, which is fixed in the shell 1 and is transmission-connected to the roller brush 4.

[0041] See also Figure 1 and Figure 2In this embodiment, the housing 1 includes a base 11, a floor brush cover 12, and a floor brush window 13. The floor brush window 13 is detachably mounted on the base 11, and a mounting cavity 111 is formed between the base 11 and the floor brush window 13. Furthermore, the bottom wall of the base 11 is provided with an opening corresponding to the position of the roller brush 4, and a part of the roller brush 4 can extend outside the base 11 through the opening on the base 11 and contact the ground; in addition, a cavity for mounting a power component 5 is formed on the base 11, and the floor brush cover 12 is fixed on the base 11 and closes the position on the base 11 corresponding to the power component 5; an opening 112 is provided inside the base 11 at the middle position of the mounting cavity 111, and the opening 112 is connected to the air duct in the vacuum cleaner through a hose.

[0042] See also Figure 4 and Figure 5 In this embodiment, the first support component 2 includes a fixing frame 21, a first pin 22 and a first stopper 23. The end of the fixing frame 21 is detachably connected to the base 11 and is located at one end of the installation cavity 111, and a part of the fixing frame 21 is placed inside the installation cavity 111; the first pin 22 is coaxially arranged inside the fixing frame 21, and both ends of the first pin 22 are rotatably connected to the fixing frame 21 through bearings; the first stopper 23 is coaxially fixed to the first pin 22 and is drivingly connected to the roller brush 4.

[0043] See also Figure 4 and Figure 5 In this embodiment, the fixing frame 21 is composed of a fixing disk 211, a first cylinder 212 and a first blocking member. The fixing disk 211 is detachably fixedly connected to the base 11, and the first supporting member 2 can be pulled out of the roller brush 4 along the axial direction of the roller brush 4; one end of the first cylinder 212 is coaxially fixed to the fixing disk 211, and the other end is placed inside the mounting cavity 111, and the first pin 22 is coaxially penetrated in the first cylinder 212 and rotatably connected to the first cylinder 212 through a bearing, and the bearing connection method can ensure the stability of the rotation of the first pin 22; in this embodiment, the first blocking member is a block 213, and the shape and structure of the second blocking member here is not limited to the structure of the block 213 shown in the figure, and can play the role of fixing the first retaining ring 24; the block 213 is fixed on the outer wall of the first cylinder 212 and is located at one end away from the fixing disk 211; it should be noted that there are four blocks 213, and they are arranged around the circumference of the first cylinder 212.

[0044] See also Figure 3 , Figure 4 and Figure 5The first cylinder 212 is coaxially sleeved with a first retaining ring 24, which is located between the stopper 213 and the first stopper 23, and the two sides of the first retaining ring 24 are respectively pressed against the stopper 213 and the first stopper 23; it should be noted that the first retaining ring 24 is made of wear-resistant flexible material, and has a certain interference fit with the inner side wall of the brake ring 41, and has relative friction. The brake ring 41 is coaxially fixed inside the end of the roller brush 4 connected to the first supporting component 2, and the end of the brake ring 41 extending into the installation cavity 111 is meshed and fixed with the first stopper 23, thereby realizing the transmission connection between the roller brush 4 and the first pin 22.

[0045] See also Figure 6 , Figure 7 and Figure 8 In this embodiment, the housing 1 further includes a first end cover 14. The first end cover 14 is fixedly connected to the fixing plate 211 by bolts. In addition, a mounting groove 16 is provided on the base 11 near the first supporting member 2, and a button 17 is slidably connected in the mounting groove 16. A part of the button 17 is embedded with the first end cover 14. The button 17 can be toggled to separate the button 17 from the first end cover 14, so that the roller brush 4 can be drawn out of the mounting cavity, and the hair inside the roller brush 4 can be easily cleaned. Furthermore, a card slot 141 is provided on the inner side wall of the first end cover 14, and a card block 171 is formed at one end of the button 17. The first end cover 14 is connected or disassembled with the base 17 by the embedded cooperation of the card block 171 and the card slot 141. A spring 18 is fixed between the button 17 and the base 11, and the button 17 is automatically reset after being toggled by the spring 18.

[0046] See also Fig. 9 and Fig.10 In this embodiment, the second supporting component 3 includes a second cylinder 31, a second pin 32 and a second stopper 33. One end of the second cylinder 31 is fixedly connected to the inner wall of the base 11, and the other end is located inside the mounting cavity 111; the second pin 32 is coaxially arranged in the second cylinder 31 and is rotatably connected to the second cylinder 31 through a bearing, and the bearing connection method can ensure the stability of the rotation of the second pin 32; it should be noted that one end of the second pin 32 located in the mounting cavity 111 is coaxially fixed to the second stopper 33, and the second stopper 33 is connected to the inside of the roller brush 4, and the other end is connected to the power component 4 through a gear transmission. In addition, a second blocking member is fixed on the outer wall of the second cylinder 31. It should be noted that in the present embodiment, the second blocking member is a baffle 34. The shape and structure of the second blocking member here are not limited to the structure of the baffle 34 shown in the figure, and it is sufficient to play the role of fixing the second retaining ring 35; the baffle 34 is vertically arranged and is arranged in a circular plate around the outer wall of the second cylinder 31, and the baffle 34 is located on the second cylinder 31 near the second limit member 33.

[0047] See also Fig. 9 and Fig.10 A second retaining ring 35 is coaxially sleeved on the second cylinder 31, and the second retaining ring 35 is located between the baffle plate 34 and the second limit member 33, and the two sides of the second retaining ring 35 are respectively pressed against the baffle plate 34 and the second limit member 33; it should be noted that the second retaining ring 34 is made of wear-resistant flexible material, and has a certain interference fit with the inner side wall of the roller brush 4, and relative friction; the inner part of the end of the roller brush 4 connected to the second supporting component 3 is meshed and fixed with the second limit member 33, thereby realizing the transmission connection between the roller brush 4 and the second pin shaft 32.

[0048] See also Fig.12 In the present invention, guide gaps 6 are formed between the two ends of the roller brush 4 and the inner side walls of the fixed disk 211 and the base 11 respectively; a receiving groove 7 is formed between the inner side walls of the two ends of the roller brush 4 and the outer side walls of the first support component 2 and the second support component 3, and the receiving groove 7 is connected to the guide gap 6, wherein the receiving groove 7 of the first support component 2 is formed between the brake ring 41 and the first cylinder 212, and the receiving groove 7 of the second support component 3 is formed between the roller brush 4 and the second cylinder 31. The hair wound at the two ends of the roller brush 4 can be placed in the receiving groove 7 formed inside the roller brush 4 through the guide gap 6, which can reduce the accumulation of excessive hair at the two ends of the roller brush 4 to form a friction medium, thereby preventing the high-speed rotating roller brush 4 from generating heat due to friction with the friction medium, causing the fixed disk 211 or the inner side wall of the base 11 to partially deform and melt, thereby causing the roller brush 4 to get stuck.

[0049] See also Fig.12 In the present invention, the first retaining ring 24 and the second retaining ring 35 are used to close the side of the receiving groove 7 formed inside the roller brush 4 away from the guide gap 6, so as to prevent the hair in the receiving groove 7 from being caught in the meshing and fixing part of the first stopper 23 and the brake ring 41, or the meshing and fixing part of the second stopper 33 and the roller brush 4. In addition, since the first retaining ring 24 and the second retaining ring 35 are respectively interference-fitted with the inner side wall of the brake ring 41 and the inner side wall of the roller brush 4, when the power component 5 stops working, the first retaining ring 24 and the second retaining ring 35 can play a braking role, so as to stop the roller brush 4 quickly.

[0050] See also Fig. 9 and Fig.11In this embodiment, the power component 5 includes a motor 51, a driving gear 52, a driven gear 53 and a toothed belt 54. The motor 51 is fixed on the base 11 and is located near the second support component 3. The output shaft of the motor 51 passes through the side wall of the base 11 and is partially located outside the base 11. The driving gear 52 is coaxially fixed with the output shaft of the motor 51. The driven gear 53 is coaxially fixed with the end of the second pin shaft 32 away from the second limiter 33, and the driven gear 53 is located outside the base 11. The toothed belt 54 is sequentially wound around the driving gear 52 and the driven gear 53, and meshes with the driving gear 52 and the driven gear 53.

[0051] See also Figure 2 and Fig.12 In this embodiment, the housing 1 further includes a second end cover 15. The second end cover 15 is fixed on the base 11 and is located at the position of the second supporting component 3 on the base 11, and the driving gear 52 and the driven gear 53 are enclosed between the second end cover 15 and the outer side wall of the base 11, which can play a certain protective role for the driving gear 52, the driven gear 53 and the toothed belt 54.

[0052] In summary, the present invention forms a receiving groove 7 between the inner side walls at both ends of the roller brush 4 and the outer side walls of the first support component 2 and the second support component 3, and connects the receiving groove 7 with the guide gap 6, so that the hair wound at both ends of the roller brush 4 can pass through the guide gap 6 and be placed in the receiving groove 7 formed inside the roller brush 4, which can reduce the situation where too much hair is accumulated at both ends of the roller brush 4 to form a friction medium, thereby avoiding the occurrence of the roller brush 4 being stuck due to the hair. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0053] 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 vacuum cleaner floor brush, characterized in that: include: The housing has a mounting cavity formed therein; A first supporting member, detachably connected to the housing and forming a first end portion; A second supporting member, fixedly connected to the housing and forming a second end portion; The roller brush is hollow inside, the first supporting member and the second supporting member are coaxially disposed at two ends of the roller brush, and the first supporting member is fixedly connected to the roller brush; A guide gap is formed between the two end walls of the roller brush and the first end and the second end respectively; A receiving groove is formed between the inner wall of the roller brush and the outer walls of the first supporting component and the second supporting component, and the receiving groove is communicated with the guide gap.

2. The vacuum cleaner floor brush according to claim 1, characterized in that: The first supporting member comprises: A fixing frame, detachably connected to the shell; A first pin shaft is coaxially arranged inside the fixing frame, and two ends of the pin shaft is rotatably connected to the fixing frame through bearings; The first limiting member is fixedly connected to one end of the first pin shaft extending into the installation cavity and is drivingly connected to the roller brush.

3. The vacuum cleaner floor brush according to claim 2, characterized in that: The fixing frame comprises: A fixing plate, detachably connected to the housing; A first cylinder, one end of which is coaxially fixed to the fixing plate and the other end of which extends into the installation cavity; The first blocking member is arranged on the outer side wall of the first cylinder and is located at an end away from the fixed disk.

4. The vacuum cleaner floor brush according to claim 3, characterized in that: A first retaining ring is coaxially sleeved on the first cylinder, and the first retaining ring is located between the first blocking member and the first limiting member.

5. The vacuum cleaner floor brush according to claim 1, characterized in that: The second supporting member comprises: A second cylinder, one end of which is fixedly connected to the inner wall of the shell; A second pin shaft is coaxially arranged inside the second cylinder, and both ends of the pin shaft is rotatably connected to the second cylinder through bearings; A second limiting member is fixedly connected to one end of the second pin extending into the mounting cavity and is drivingly connected to the roller brush; The second blocking member is arranged around and fixed on the outer side wall of the second cylinder.

6. The vacuum cleaner floor brush according to claim 5, characterized in that: A second retaining ring is coaxially sleeved on the second cylinder, and the second retaining ring is located between the second blocking member and the second limiting member.

7. The vacuum cleaner floor brush according to claim 1, characterized in that: A power component is also installed inside the shell, and the power component drives the roller brush to rotate through the first supporting component and the second supporting component.

8. The vacuum cleaner floor brush according to claim 7, characterized in that: A brake ring is coaxially fixed inside one end of the roller brush connected to the first supporting component, and the brake ring is engaged with a first limiting member in the first supporting component.

9. The vacuum cleaner floor brush according to claim 8, characterized in that: The interior of one end of the roller brush connected to the second supporting component is engaged with the second limiting member in the second supporting component, and the second pin in the second supporting component is drivingly connected to the power component.

10. The vacuum cleaner floor brush according to claim 9, characterized in that: The power components include: a motor, fixed on the housing and located close to the second supporting member; A driving gear, coaxially fixed with the output shaft of the motor; A driven gear is coaxially fixed to an end of the second pin shaft away from the second limiting member; The toothed belt is meshed with the driving gear and the driven gear.

11. The vacuum cleaner floor brush according to claim 1, characterized in that: The housing comprises: Base; A floor brush upper cover is fixed on the base and closes the position of the power component on the base; A floor brush viewing window is fixed on the base and closes the installation cavity.

12. The vacuum cleaner floor brush according to claim 11, characterized in that: An opening is provided in the base at the middle of the installation cavity, and the opening is communicated with the air duct in the vacuum cleaner through a hose.

13. The vacuum cleaner floor brush according to claim 11, characterized in that: The housing further comprises: A first end cover, fixedly connected to the fixing plate in the first supporting member; The second end cover is fixedly connected to the base and corresponds to the second supporting component.

14. The vacuum cleaner floor brush according to claim 13, characterized in that: A clamping groove is provided on the inner side wall of the first end cover, and a clamping block is movably provided on the base, and the clamping block is embedded and matched with the clamping groove.

15. The vacuum cleaner floor brush according to claim 14, characterized in that: The base is provided with a mounting groove, the button on the card block is placed in the mounting groove and is reciprocated along the length direction of the mounting groove; a spring is fixed between the card block and the inner wall of the base to realize automatic resetting of the card block.

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