A dust extractor floor brush having reversible squeegee

Abstract

The utility model discloses a dust collector ground brush with can overturn scraping strip, include: ground brush shell, ground brush shell tail is connected with the rolling wheel, adapter, adapter is connected with ground brush shell rotation, roll brush group, roll brush group includes and has the front roll brush and rear roll brush, and the front roll brush is installed in the front end of ground brush shell, and the rear roll brush is installed in the middle part of ground brush shell, drive group, drive group is installed in the side wall of ground brush shell, and the front roll brush and middle roll brush are connected with drive group, lower scraping strip, lower scraping strip can realize overturning action, and lower scraping strip is installed in the lower extreme of ground brush shell and is placed in the rear side of rear roll brush group, the utility model has the advantages that: its swing action can make dust and large size (6 8mm) particle enter to the middle part of ground brush shell lower surface, and the sweep strip can push, gather dust and large size (6 8mm) particle, realize the cleaning of dust and large size (6 8mm) particle, can improve the dust collection effect to the bottom dust and large size (6 8mm) particle, improve the use effect of ground brush.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum cleaners, and in particular to a vacuum cleaner floor brush with a reversible scraper. Background Technology

[0002] Vacuum cleaners are widely used in daily life, and the floor brush is the main component at the end of the vacuum cleaner used for vacuuming. The floor brush mainly consists of a floor brush shell and a roller brush mounted on the floor brush shell. The rolling motion of the roller brush can bring dust particles on the ground into the interior of the floor brush shell, and together with the suction power of the vacuum cleaner main unit, the dust particles can be collected into the dust cup of the vacuum cleaner.

[0003] When there are large particles on the ground, the scraper blades prevent these particles from entering the cavity of the brush shell as the brush moves across the ground. This results in incomplete dust collection and poor dust collection performance.

[0004] To improve the vacuum cleaner's suction performance, the structure of the floor brush needs to be improved. Utility Model Content

[0005] This invention aims to overcome the shortcomings of existing floor brushes in terms of poor dust collection performance and poor vacuum cleaner performance, and provides a vacuum cleaner floor brush with a reversible scraper that improves dust collection performance and vacuum cleaner performance.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a vacuum cleaner floor brush with a reversible scraper, comprising:

[0007] A floor brush housing, with a roller connected to the tail end of the floor brush housing;

[0008] The adapter is rotatably connected to the floor brush housing;

[0009] A roller brush assembly, comprising a front roller brush and a rear roller brush, wherein the front roller brush is mounted at the front end of the floor brush housing and the rear roller brush is mounted at the middle of the floor brush housing;

[0010] A drive assembly is mounted on the side wall of the floor brush housing, and both the front and rear roller brushes are connected to the drive assembly.

[0011] The lower scraper is capable of flipping and is installed at the lower end of the floor brush housing and positioned behind the rear roller brush assembly.

[0012] The floor brush structure includes a floor brush housing with rollers at its bottom. These rollers are located at the rear and middle of the floor brush housing, enhancing the mobility of the floor brush structure. An adapter is connected to the rear of the floor brush housing, allowing for quick connection to the vacuum cleaner's linkage, facilitating the disassembly and assembly of the vacuum cleaner body and the floor brush. A roller brush assembly, consisting of a front roller brush and a rear roller brush, is mounted at the bottom of the floor brush housing. The front roller brush is located at the front of the floor brush housing, and the rear roller brush is located in the middle. The rotation of the front and rear roller brushes guides dust from the floor into the floor brush housing, improving suction efficiency. A drive assembly is mounted on the right side wall of the floor brush housing, driving the rotation of the front and rear roller brushes. Meanwhile, a lower scraper is installed at the bottom of the floor brush housing. This lower scraper can be flipped. It is installed at the rear end of the floor brush housing and positioned behind the rear roller brush. The installed lower scraper can push and collect dust on the ground when the floor brush housing moves. This structure can improve the dust introduction of the front and rear roller brushes, thereby improving the dust collection effect and the performance of the vacuum cleaner.

[0013] Preferably, the tail of the floor brush housing is provided with a mounting groove, the bottom inner wall of the mounting groove is provided with a dust suction port, the adapter includes a lower connector and an upper connector, the upper connector is hinged to the lower connector, the lower connector is hinged to the side wall of the mounting groove, a dust suction hose is sleeved inside the upper connector and the lower connector, the dust suction hose is connected to the dust suction port, and the upper connector is equipped with a female connector for connecting to the vacuum cleaner hose, the female connector is connected to the dust suction hose. The adapter features a U-shaped mounting groove at the rear of the floor brush housing, with a suction port on its bottom surface. The adapter includes a lower and upper connector. The lower connector is hinged to the inner wall of the mounting groove, allowing it to swing back and forth. The upper connector has a U-shaped connector seat at its lower end, which is hinged to the lower connector, allowing for left-right swinging of both connectors, thus enabling four-way oscillation of the adapter for easy adjustment during brush use. A suction hose is fitted inside the upper and lower connectors, with its lower end connected to the suction port and its upper end connected to a female connector for connection to the vacuum cleaner's main piping. The female connector also includes a connecting circuit that electrically powers the drive unit. This adapter's design allows for easy angle adjustment of the brush connector during use, improving operation and vacuum cleaner performance.

[0014] Preferably, the drive assembly includes a motor bracket mounted on the side wall of the floor brush housing. A floor brush motor, which is a dual-axis motor, is mounted on the rear end of the motor bracket. A rear drive block is mounted on the internal motor shaft of the floor brush motor and is connected to the rear roller brush. A drive gear is connected to the external motor shaft of the floor brush motor. A gear shaft is mounted on the front end of the motor bracket. A driven gear is mounted on the outer side of the gear shaft. A front drive block is mounted on the inner side of the gear shaft and is connected to the front roller brush. The drive gear and the driven gear are connected by a toothed synchronous belt. The drive unit includes a motor bracket, which is screwed onto the side wall of the floor brush housing. A dual-axis floor brush motor is mounted on the bracket. A rear drive block is installed on the left side of the motor shaft, connecting to a rear roller brush. The rotation of the brush motor drives the rear roller brush, thus cleaning dust from the floor and completing the vacuuming operation. A drive gear is mounted on the right side of the motor shaft, and a gear shaft is located on the right end face of the motor bracket. The gear shaft is coaxially arranged with the front brush chamber. The gear shaft passes through the motor bracket and can rotate. A driven gear is installed on the right side of the gear shaft, and a front drive block is installed on the left side of the gear shaft. The front drive block is connected to the front roller brush. At the same time, the driven gear and the drive gear are connected by a toothed synchronous belt. When the floor brush motor rotates, the front roller brush can be driven to rotate through the linkage of this gear structure. In this way, the rotation of the floor brush motor can drive the front roller brush and the rear roller brush to rotate synchronously, thus completing the cleaning of the floor and ensuring improved dust collection effect.

[0015] Preferably, the rear roller brush includes a rear brush rod, the right end of which is fitted with a rear drive block, the left end of which is inserted with a left plug, a rear bearing post is installed inside the left plug, a bearing is fitted onto the rear bearing post, a rear end cap is provided at the outer left end of the rear brush rod, a rear bearing groove is provided on the right side of the rear end cap, the bearing is installed in the rear bearing groove by interference fit, a limiting protrusion is provided on the side wall of the rear end cap, a rear brush hole is provided at the left end of the floor brush shell, a limiting block is provided on the inner wall of the end of the rear brush hole, and the limiting protrusion and the limiting block are fitted together. The rear roller brush includes a rear brush rod, which is fitted to the rear drive block via an insertion mechanism at its right end. This structure enables the rear roller brush to rotate. A left plug is inserted into the left end of the rear brush rod, and a rear bearing post is installed inside the left end face of the left plug. A bearing is fitted onto the rear bearing post. A rear end cap is located at the outer left end of the rear brush rod, and a rear bearing groove is located on the right end face of the rear end cap. The bearing is embedded in the rear bearing groove, and the bearing and the rear bearing groove are connected by an interference fit. This structure ensures the rotational stability of the rear roller brush. A limiting protrusion is located on the right side wall of the rear end cap, and a rear brush hole is located at the left end of the brush housing. A limiting block is located on the inner wall of the rear brush hole. Rotating the rear end cap engages the limiting protrusion and the limiting block, allowing for easy disassembly and replacement of the rear roller brush.

[0016] Preferably, the side wall of the rear brush rod is provided with several spiral-shaped rubber strips, and a velvet strip is spirally wound around the rear brush rod. The velvet strip is placed between adjacent rubber strips, and a groove is provided on the outer surface of the rubber strip, in which a bristle strip is installed. Specifically, at least two rubber strips are provided on the outer side wall of the rear brush rod, spirally wound around the rear brush rod. A velvet strip is simultaneously wound around the rear brush rod, and the velvet strip is simultaneously glued between two adjacent rubber strips, also in a spiral arrangement. This spiral structure allows the rear roller brush to better guide dust into the interior of the floor brush housing when rotating, and into the dust cup of the vacuum cleaner through the suction port. Simultaneously, the groove on the outer surface of the rubber strip is used to engage bristle strips, which improve the dust-cleaning effect and thus enhance the vacuuming efficiency.

[0017] Preferably, the front roller brush includes a front brush rod, with a bristle tube sleeved on the outer side of the front brush rod. The right end of the front brush rod is fitted with a front drive block. A left plug is provided on the left side of the front brush rod, and a front bearing post is provided at the end of the left plug. A second bearing is installed on the front bearing post. A front end cover is provided on the outer left side of the front brush rod, and a front bearing groove is provided on the right side of the front end cover. The second bearing is installed in the front bearing groove by interference fit. A mounting block is provided on the left end face of the front end cover, and a locking block is provided on the mounting block. A front brush groove is provided on the left side of the floor brush shell, and an unlocking button is installed in the front brush groove. A locking buckle is provided on the side wall of the unlocking button, and the locking buckle engages with the locking block. A spring is provided between the unlocking button and the inner bottom surface of the front brush groove. The system includes a front brush rod within the front roller brush, with a bristle tube sleeved on its outer side. This bristle tube, with its bristle structure, enhances dust removal and improves suction efficiency. The right end of the front brush rod is fitted with a front drive block via a plug-in connection. A left stopper is located on the left end of the front brush rod, with a front bearing post mounted on its left side. A second bearing is installed on the front bearing post. A front end cap is located on the outer left side of the front brush rod, with a front bearing groove on its right side. The second bearing is embedded in this groove via an interference fit. A mounting block, shaped like an arc, is located on the left end face of the front end cap. A bearing is mounted on this mounting block. Equipped with a locking block, a front brush slot is located on the left side of the floor brush housing. The side wall of this front brush slot has a clearance groove. When the front roller brush is installed, the locking block passes through the clearance groove. Simultaneously, an unlocking button is installed inside the front brush slot. A locking buckle is installed on the side wall of the unlocking button, which locks with the locking block. A spring is installed between the inner wall of the unlocking button and the inner bottom surface of the front brush slot, providing an elastic connection. When the front roller brush needs to be removed, pressing the unlocking button releases the locking block and locking buckle. This structure facilitates the removal and installation of the front roller brush, improving the ease of replacement and thus enhancing the overall performance of the floor brush structure.

[0018] Preferably, the mounting block is provided with a fixing groove, a second spring is installed in the fixing groove, the second spring is connected to a locking pin, and a locking hole is provided on the left side end of the floor brush housing, into which the locking pin is inserted. Specifically, the fixing groove on the mounting block, the second spring installed inside the fixing groove, the locking pin on the top of the second spring, and the locking hole on the left side end of the floor brush housing allow the locking pin to be inserted into the locking hole during the installation of the front roller brush, thus positioning the front roller brush and ensuring its installation stability.

[0019] Preferably, the lower scraper includes a rigid mounting strip and a soft scraper. The rigid mounting strip has a front fixing strip and a rear fixing strip. The rear fixing strip is connected to the bottom surface of the floor brush housing. A connecting soft rubber is provided between the front fixing strip and the rear fixing strip. The connecting soft rubber has a V-shaped cross-section. The front fixing strip has a scraper groove. The top of the soft scraper has a snap-fit ​​strip. The snap-fit ​​strip is installed in the scraper groove. A sweeping strip is provided below the snap-fit ​​strip and is arranged perpendicular to the front fixing strip. A supporting soft rubber is provided on the rear side wall of the sweeping strip. The supporting soft rubber has two rubber blocks arranged crosswise. The rubber block on the front side is in contact with the sweeping strip. The brush assembly includes a rigid mounting strip and a flexible scraper strip. The rigid mounting strip is screwed to the bottom of the brush housing. The rigid mounting strip includes a front fixing strip and a rear fixing strip, which are connected by a V-shaped connecting rubber strip that allows the rigid mounting strip to swing. A scraper groove is located on the bottom of the front fixing strip, and a snap-fit ​​strip is located at the top of the flexible scraper strip, which inserts into the scraper groove. A sweeping strip is located at the lower end of the snap-fit ​​strip, which pushes and collects dust on the floor. Meanwhile, support rubber is provided at both ends of the rear side wall of the sweeping bar, and two rubber blocks are set in the support rubber. The two rubber blocks are arranged in a cross shape. The rubber block on the front side contacts the sweeping bar. The lower scraper structure can swing when the floor brush shell moves. When the floor brush shell moves backward, its swinging action can make dust enter the middle of the lower surface of the floor brush shell. When the floor brush shell moves forward, the sweeping bar can push and collect the dust, so that it contacts the rear roller brush and the front roller brush in turn, thereby cleaning the dust and improving the dust suction effect on the bottom surface, thus improving the use effect of the floor brush.

[0020] The beneficial effects of this utility model are as follows: the adapter structure allows for convenient angle adjustment of the brush head during use, making operation easier and improving the vacuum cleaner's performance; the front and rear roller brushes in the floor brush are easily disassembled, improving the efficiency of disassembly and installation, and enhancing the floor brush's performance; the lower scraper can rotate, and its swinging motion allows dust to enter the middle of the lower surface of the floor brush housing. As the floor brush housing moves forward, the scraper pushes and collects the dust, causing it to contact the rear and front roller brushes successively, thus cleaning the dust and improving the dust collection effect on the bottom surface, thereby enhancing the floor brush's performance. Attached Figure Description

[0021] Figure 1 This is a three-dimensional view of the present invention;

[0022] Figure 2 This is a sectional view of the present invention;

[0023] Figure 3This is a three-dimensional view of the bottom of this utility model;

[0024] Figure 4 This is a cross-sectional view of the rear roller brush of this utility model;

[0025] Figure 5 This is a cross-sectional view of the front roller brush of this utility model;

[0026] Figure 6 This is a three-dimensional view of the rear roller brush of this utility model;

[0027] Figure 7 This is a sectional view of the front roller brush mounting block in this utility model;

[0028] Figure 8 This is a partial exploded view of the front roller brush unlock button in this utility model;

[0029] Figure 9 This is a three-dimensional view of the lower scraper in this utility model.

[0030] In the attached diagram: 1. Floor brush housing; 2. Adapter; 3. Front roller brush; 4. Rear roller brush; 6. Drive assembly; 7. Lower scraper; 10. Roller wheel; 11. Mounting slot; 12. Suction port; 15. Rear brush hole; 16. Front brush slot; 17. Unlock button; 18. Locking buckle; 19. Spring 1; 20. Lower connector; 21. Upper connector; 22. Suction hose; 23. Female connector; 30. Front brush arm; 31. Left plug; 32. Front bearing post; 33. Front bearing; 34. Front end cover; 35. Front bearing groove; 36. Mounting block; 37. Locking block; 38. Fixing slot; 39. Spring 2; 40. Rear brush arm; 41. Left plug; 42. Rear bearing post; 43. Bearing 1; 44. 45. Rear end cap; 46. Rear bearing groove; 60. Limiting protrusion; 61. Motor bracket; 62. Floor brush motor; 63. Rear drive block; 64. Gear shaft; 65. Drive gear; 66. Driven gear; 67. Synchronous belt; 70. Mounting rigid strip; 71. Soft scraper strip; 72. Scraper strip groove; 73. Snap-fit ​​strip; 74. Sweeping strip; 75. Supporting soft rubber; 100. Locking hole; 150. Limiting snap block; 300. Pile tube; 390. Locking post; 400. Rubber strip; 401. Pile strip; 402. Slot; 403. Pile strip; 700. Front fixing strip; 701. Rear fixing strip; 702. Connecting soft rubber; 750. Rubber block. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components illustrated in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0035] Example 1, such as Figure 1-9As shown, a vacuum cleaner floor brush with a reversible scraper includes: a floor brush housing 1, with a roller 10 connected to the tail of the floor brush housing 1; a connector 2, which is rotatably connected to the floor brush housing 1; a roller brush assembly, which includes a front roller brush 3 and a rear roller brush 4, with the front roller brush 3 installed at the front end of the floor brush housing 1 and the rear roller brush 4 installed in the middle of the floor brush housing 1; a drive assembly 6, which is installed on the side wall of the floor brush housing 1, and both the front roller brush 3 and the rear roller brush 4 are connected to the drive assembly 6; and a lower scraper 7, which is installed at the lower end of the floor brush housing 1 and positioned behind the rear roller brush 4.

[0036] The floor brush structure includes a floor brush housing 1, with rollers 10 mounted at the bottom. These rollers 10 are installed at the rear and middle of the floor brush housing 1, enhancing the mobility of the floor brush structure. An adapter 2 is connected to the rear of the floor brush housing 1, allowing for quick connection to the vacuum cleaner's linkage, facilitating the disassembly and assembly of the vacuum cleaner body and the floor brush. A roller brush assembly is installed at the bottom of the floor brush housing 1, comprising a front roller brush 3 and a rear roller brush 4. The front roller brush 3 is installed at the front of the floor brush housing 1, and the rear roller brush 4 is installed in the middle. The rotation of the front and rear roller brushes 4 guides dust from the floor into the floor brush housing 1, improving suction efficiency. A drive assembly 6 is installed on the right side wall of the floor brush housing 1, driving the rotation of the front and rear roller brushes 3 and 4. Meanwhile, a lower scraper 7 is provided at the bottom of the floor brush housing 1. The lower scraper 7 is installed at the rear end of the floor brush housing 1 and is located behind the rear roller brush 4. The installed lower scraper 7 can push and collect the dust on the ground when the floor brush housing 1 moves. This structure can improve the dust introduction of the front and rear roller brushes 4, thereby improving the dust collection effect and improving the use effect of the vacuum cleaner.

[0037] The floor brush housing 1 has a U-shaped mounting groove 11 at its tail end. A suction port 12 is located on the bottom surface of the mounting groove 11. The adapter 2 has a lower connector 20 and an upper connector 21. The lower connector 20 is hinged to the inner wall of the mounting groove 11, allowing it to swing back and forth. The lower end of the upper connector 21 has a U-shaped connector seat, which is hinged to the lower connector 20. This hinged connection allows the upper and lower connectors 21 to swing left and right, thus enabling the adapter 2 to swing in four directions. The adapter 2 allows for easy adjustment of the brush head's direction during use. A vacuum hose 22 is fitted inside the upper connector 21 and lower connector 20. The lower end of the vacuum hose 22 connects to the vacuum port 12, and the upper end connects to a female connector 23. The female connector 23 allows for connection to the vacuum cleaner's main body. The female connector 23 also has a connecting circuit that is electrically connected to the drive unit 6, providing power to the drive unit 6. This adapter 2's structure allows for convenient angle adjustment of the brush head during use, making operation easier and improving the vacuum cleaner's performance.

[0038] The drive unit 6 includes a motor bracket 60, which is screwed onto the side wall of the floor brush housing 1. A floor brush motor 61, a dual-axis motor, is mounted on the motor bracket 60. A rear drive block 62 is mounted on the motor shaft on the left side of the floor brush motor 61, and this rear drive block 62 is connected to the rear roller brush 4. The rotation of the brush motor drives the rear roller brush 4 to rotate, thus cleaning dust from the floor and completing the vacuuming operation. A drive gear 64 is mounted on the motor shaft on the right side of the floor brush motor 61. A gear shaft 63 is located on the right end face of the motor bracket 60. The gear shaft 63 is coaxially arranged with the front brush chamber 13. The gear shaft 63 passes through the motor bracket 60 and can rotate. The driven gear 65 is installed on the right side of the gear shaft 63, and the front drive block 66 is installed on the left side of the gear shaft 63. The front drive block 66 is connected to the front roller brush 3. At the same time, the driven gear 65 and the drive gear 64 are connected by a toothed synchronous belt 67. When the floor brush motor 61 rotates, the front roller brush 3 can be driven to rotate through the linkage of this gear structure. In this way, the rotation of the floor brush motor 61 can drive the front roller brush 3 and the rear roller brush 4 to rotate synchronously, thus completing the cleaning of the floor and ensuring improved dust collection effect.

[0039] The rear roller brush 4 includes a rear brush rod 40, which is fitted to the rear drive block 62 via an insertion connection at its right end. This structure enables the rear roller brush 4 to rotate. A left plug 41 is inserted into the left end of the rear brush rod 40. A rear bearing post 42 is installed inside the left end face of the left plug 41, and a bearing 43 is fitted onto the rear bearing post 42. A rear end cap 44 is located at the outer left end of the rear brush rod 40, and a rear bearing groove 45 is located on the right end face of the rear end cap 44. The bearing 43 is embedded in the rear bearing groove 45. The rear bearing 43 and the rear bearing groove 45 are connected by an interference fit. This structure can ensure the rotational stability of the rear roller brush 4. A limiting protrusion 46 is provided on the right side wall of the rear end cover 44. At the same time, a rear brush hole is provided on the left end of the floor brush housing 1. A limiting block 150 is provided on the inner wall of the rear brush hole. Rotating the rear end cover 44 can realize the engagement of the limiting protrusion 46 and the limiting block 150. This structure can make the rear roller brush 4 disassembled by rotating the rear end cover 44. This structure makes the disassembly of the rear roller brush 4 simple and convenient, and facilitates the replacement of the rear roller brush 4.

[0040] At least two adhesive strips 400 are provided on the outer wall of the rear brush rod 40. The adhesive strips 400 are spirally wound around the rear brush rod 40. Simultaneously, a cloth strip 401 is wound around the rear brush rod 40. The cloth strip 401 is installed between two adjacent adhesive strips 400 in a spiral arrangement. This spiral structure allows the rear roller brush 4 to better guide dust into the interior of the floor brush housing 1 when it rotates, and enter the dust cup of the vacuum cleaner through the suction port 12. At the same time, a groove 402 is provided on the outer surface of the adhesive strip 400. A bristle strip 403 is installed and engaged inside the groove 402. The bristle strip 403 can improve the dust cleaning effect, thereby improving the vacuuming effect.

[0041] The front brush rod 30 is provided in the front roller brush 3. A fluff tube is sleeved on the outer side of the front brush rod 30. The fluff tube can adopt a fluff structure to improve the sweeping of dust on the ground and improve the dust collection effect. The right end of the front brush rod 30 is matched and sleeved with the front drive block 66 by plugging. A left plug block 31 is provided on the left end of the front brush rod 30. A front bearing post 32 is installed on the left end of the left plug block 31. A bearing 33 is installed on the front bearing post 32. At the same time, a front end cover 34 is provided on the left outer side of the front brush rod 30. A front bearing groove 35 is installed on the right side of the front end cover 34. The bearing 33 is embedded in the front bearing groove 35. The bearing 33 is connected to the front bearing groove 35 by interference fit. At the same time, a mounting block 36 is provided on the left end face of the front end cover 34. The mounting block 36 is an arc-shaped block. A locking block 37 is installed on the front brush housing 1. A front brush groove 16 is provided on the left side of the front brush housing 1. The side wall of the front brush groove 16 is provided with a clearance groove. When the front roller brush 3 is installed, the locking block 37 passes through the clearance groove of the front brush groove 16. At the same time, an unlocking button 17 is installed inside the front brush groove 16. A locking buckle 18 is installed on the side wall of the unlocking button 17. The locking buckle 18 can lock with the locking block 37. A spring 19 is installed between the inner wall of the unlocking button 17 and the inner bottom surface of the front brush groove 16, so that the unlocking button 17 is elastically connected. When it is necessary to remove the front roller brush 3, the locking state of the locking block 37 and the locking buckle 18 can be released by pressing the unlocking button 17. This structure can facilitate the removal and installation of the front roller brush 3, thereby improving the convenience of the replacement operation of the front roller brush 3 and improving the performance of the floor brush structure.

[0042] The mounting block 36 has a fixing groove 38, and a spring 39 is installed inside the fixing groove 38. A locking pin 390 is installed on the top of the spring 39. A locking hole 100 is provided on the left side of the floor brush housing 1. When the front roller brush 3 is installed, the locking pin 390 can be inserted into the locking hole 100 to complete the positioning of the front roller brush 3, thereby ensuring the installation stability of the front roller brush 3.

[0043] The lower scraper 7 includes a rigid mounting strip 70 and a soft scraper 71. The rigid mounting strip 70 is connected to the bottom surface of the floor brush housing 1 by screws. The rigid mounting strip 70 includes a front fixing strip 700 and a rear fixing strip 701, which are connected by a snap-fit ​​soft adhesive 702. The soft adhesive 702 has a V-shaped cross-section, allowing the rigid mounting strip 70 to swing. A scraper groove 72 is provided on the bottom surface of the front fixing strip 700. A snap-fit ​​strip 73 is provided on the top of the soft scraper 71, which can be inserted into the scraper groove 72. A sweeping strip 74 is provided at the lower end of the snap-fit ​​strip 73, which pushes and collects dust on the floor. Additionally, a sweeping strip 74 is provided on the rear side wall of the sweeping strip 74. Supporting soft rubber 75 is provided at both ends, and two rubber blocks 750 are provided in the supporting soft rubber 75. The two rubber blocks 750 are arranged in a cross shape. The rubber block 750 on the front side contacts the sweeping strip 74. The structure of the lower scraping strip 7 can swing when the floor brush housing 1 moves. When the floor brush housing 1 moves backward, its swinging action can make dust and large-sized (6-8mm) particles enter the middle of the lower surface of the floor brush housing 1. When the floor brush housing 1 moves forward, the sweeping strip 74 can push and collect the dust and large-sized (6-8mm) particles, so that they come into contact with the rear roller brush 4 and the front roller brush 3 in turn, thereby cleaning the dust and large-sized (6-8mm) particles, thus improving the dust collection effect on the bottom surface and improving the use effect of the floor brush.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vacuum cleaner floor brush with a reversible scraper, characterized in that, include: Floor brush housing (1), with a rolling wheel (10) connected to the tail of the floor brush housing (1). Adapter (2), which is rotatably connected to the floor brush housing (1); The roller brush assembly includes a front roller brush (3) and a rear roller brush (4). The front roller brush (3) is installed at the front end of the floor brush housing (1), and the rear roller brush (4) is installed in the middle of the floor brush housing (1). Drive group (6), the drive group (6) is installed on the side wall of the floor brush housing (1), and the front roller brush (3) and the rear roller brush (4) are both connected to the drive group (6); The lower scraper (7) can be flipped. The lower scraper (7) is installed at the lower end of the floor brush housing (1) and is placed behind the rear roller brush (4).

2. A vacuum cleaner floor brush with a reversible scraper according to claim 1, characterized in that, The tail of the floor brush shell (1) is provided with a mounting groove (11), and the mounting groove (11) is provided with a dust suction port (12) on the bottom inner wall. The adapter (2) includes a lower connector (20) and an upper connector (21). The upper connector (21) is hinged to the lower connector (20), and the lower connector (20) is hinged to the side wall of the mounting groove (11). A vacuum suction hose (22) is sleeved inside the upper connector (21) and the lower connector (20). The vacuum suction hose (22) is connected to the dust suction port (12). The upper connector (21) is equipped with a female connector (23) for connecting to the vacuum cleaner. The female connector (23) is connected to the vacuum suction hose (22).

3. A vacuum cleaner floor brush with a reversible scraper according to claim 1, characterized in that, The drive assembly (6) includes a motor bracket (60), which is mounted on the side wall of the floor brush housing (1). A floor brush motor (61) is mounted at the rear end of the motor bracket (60). The floor brush motor (61) is a dual-axis motor. A rear drive block (62) is mounted on the internal motor shaft of the floor brush motor (61). The rear drive block (62) is connected to the rear roller brush (4). A drive gear (64) is connected to the external motor shaft of the floor brush motor (61). A gear shaft (63) is mounted at the front end of the motor bracket (60). A driven gear (65) is mounted on the outside of the gear shaft (63). A front drive block (66) is mounted on the inside of the gear shaft (63). The front drive block (66) is connected to the front roller brush (3). The drive gear (64) and the driven gear (65) are connected by a toothed synchronous belt (67).

4. A vacuum cleaner floor brush with a reversible scraper according to claim 3, characterized in that, The rear roller brush (4) includes a rear brush rod (40), the right end of which is fitted with the rear drive block (62), the left end of which is inserted with a left plug (41), a rear bearing column (42) is installed inside the left plug (41), a bearing (43) is fitted inside the rear bearing column (42), a rear end cap (44) is provided on the left outer end of the rear brush rod (40), a rear bearing groove (45) is provided on the right side of the rear end cap (44), the bearing (43) is installed in the rear bearing groove (45) by interference fit, a limiting protrusion (46) is provided on the side wall of the rear end cap (44), a rear brush hole (15) is provided on the left end of the floor brush shell (1), a limiting block (150) is provided on the inner wall of the end of the rear brush hole (15), and the limiting protrusion (46) and the limiting block (150) are fitted together.

5. A vacuum cleaner floor brush with a reversible scraper according to claim 4, characterized in that, The rear brush rod (40) has a plurality of spiral rubber strips (400) on its side wall. The rear brush rod (40) has a velvet strip (401) spirally wound around it. The velvet strip (401) is placed between adjacent rubber strips (400). The outer surface of the rubber strip (400) is provided with a groove (402). A bristle strip (403) is installed in the groove (402).

6. A vacuum cleaner floor brush with a reversible scraper according to claim 3, characterized in that, The front roller brush (3) includes a front brush rod (30), a bristle tube (300) is sleeved on the outside of the front brush rod (30), the right end of the front brush rod (30) is fitted with the front drive block (66), a left plug (31) is provided on the left side of the front brush rod (30), a front bearing post (32) is provided at the end of the left plug (31), a bearing second (33) is installed on the front bearing post (32), a front end cap (34) is provided on the outer left side of the front brush rod (30), a front bearing groove (35) is provided on the right side of the front end cap (34), and the bearing second (33) The front end cover (34) is installed in the front bearing groove (35) by interference fit. The left end face of the front end cover (34) is provided with a mounting block (36). The mounting block (36) is provided with a locking block (37). The left end of the floor brush shell (1) is provided with a front brush groove (16). The front brush groove (16) is installed with an unlocking button (17). The side wall of the unlocking button (17) is provided with a locking buckle (18). The locking buckle (18) is engaged with the locking block (37). A spring (19) is provided between the unlocking button (17) and the inner bottom surface of the front brush groove (16).

7. A vacuum cleaner floor brush with a reversible scraper according to claim 6, characterized in that, The mounting block (36) is provided with a fixing groove (38), the fixing groove (38) is provided with a spring two (39), the spring two (39) is connected to a locking post (390), the left end of the floor brush shell (1) is provided with a locking hole (100), and the locking post (390) is inserted into the locking hole (100).

8. A vacuum cleaner floor brush with a reversible scraper according to claim 1, characterized in that, The lower scraper (7) includes a mounting rigid strip (70) and a soft scraper (71). The mounting rigid strip (70) is provided with a front fixing strip (700) and a rear fixing strip (701). The rear fixing strip (701) is connected to the bottom surface of the floor brush housing (1). A connecting soft rubber (702) is provided between the front fixing strip (700) and the rear fixing strip (701). The connecting soft rubber (702) has a V-shaped cross section. The front fixing strip (700) is provided with a scraper. The groove (72) has a snap-fit ​​strip (73) at the top of the soft scraper (71). The snap-fit ​​strip (73) is installed in the scraper groove (72). A sweeping strip (74) is provided below the snap-fit ​​strip (73). A supporting soft rubber (75) is provided on the rear side wall of the sweeping strip (74). The supporting soft rubber (75) has two rubber blocks (750) arranged in a cross pattern. The rubber block (750) on the front side is in contact with the sweeping strip (74).

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