Floor brush assembly and dust collector

Abstract

The utility model discloses a floor brush assembly and a dust collector, and the floor brush assembly comprises a floor brush shell; the rolling brush assembly is arranged in the floor brush shell and connected with the floor brush shell through a connecting assembly; the connecting assembly is arranged at the two ends of the rolling brush assembly and comprises a connecting shaft, a connecting arm and a rolling brush connecting part, the two ends of the connecting arm are connected with the connecting shaft and the rolling brush connecting part respectively, the connecting shaft is installed in the floor brush shell, and the rolling brush connecting part is connected with the rolling brush assembly; the connecting arm and the rolling brush connecting part can drive the rolling brush assembly to rotate around the connecting shaft within a certain range, so that the rolling brush assembly can adjust the relative position of the rolling brush assembly in the floor brush shell according to different to-be-cleaned faces. According to the floor brush assembly, the friction force of the floor brush assembly on the high-hair and high-resistance carpet can be reduced, the situation that the floor brush assembly cannot clean an uneven to-be-cleaned face is avoided, meanwhile, noise is optimized, and the service life of the floor brush assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of floor cleaning equipment, in particular to a floor brush assembly and a vacuum cleaner. Background Art

[0002] In the existing floor brush assembly of the vacuum cleaner, the roller brush assembly is connected to the floor brush housing through a connecting assembly, the connecting assembly is fixedly connected to the floor brush housing and always remains relatively still with the floor brush housing, and the roller brush shaft of the roller brush assembly is connected to the connecting assembly, so that when the roller brush assembly is cleaning, the roller brush shaft always rotates in the same position. This may cause dirt residue when cleaning uneven surfaces to be cleaned, or stop working due to excessive resistance when cleaning high-hair and high-resistance carpets, and even affect the service life of the floor brush assembly, and make a lot of noise during cleaning. Utility Model Content

[0003] The technical problem to be solved by the embodiments of the utility model is to provide a floor brush assembly and a vacuum cleaner, which can reduce the friction of the floor brush assembly on high-hair and high-resistance carpets, and avoid the situation where the floor brush assembly does not clean well on uneven surfaces to be cleaned, while optimizing the noise and extending the service life of the floor brush assembly.

[0004] In order to solve the above technical problems, the utility model provides a floor brush assembly, comprising:

[0005] Floor brush housing;

[0006] A roller brush assembly is arranged in the floor brush housing and connected to the floor brush housing via a connecting assembly;

[0007] The connecting assembly is arranged at both ends of the roller brush assembly, and comprises a connecting shaft, a connecting arm and a roller brush connecting portion, the two ends of the connecting arm are respectively connected to the connecting shaft and the roller brush connecting portion, the connecting shaft is installed in the floor brush housing, and the roller brush connecting portion is connected to the roller brush assembly;

[0008] The connecting arm and the roller brush connecting portion can drive the roller brush assembly to rotate around the connecting axis within a certain range, so that the roller brush assembly can change the distance between the roller brush assembly and the surface to be cleaned according to different surfaces to be cleaned.

[0009] In a feasible implementation, the floor brush housing includes a first shell and a second shell that are disposed opposite to each other in an up-and-down direction, a cleaning cavity is defined between the first shell and the second shell, and the roller brush assembly is installed in the cleaning cavity.

[0010] In a feasible implementation, a first protrusion is provided on the inner wall of the first shell, and a second protrusion is provided on the inner wall of the second shell. When the first shell and the second shell are covered, the first protrusion is connected to the second protrusion.

[0011] The end of the first protrusion connected to the second protrusion is provided with a first groove, the end of the second protrusion connected to the first protrusion is provided with a second groove, and the connecting shaft is installed in the installation hole formed by the first groove and the second groove.

[0012] In a feasible implementation, the sizes of the first groove and the second groove are adapted to the size of the connecting shaft.

[0013] In a feasible implementation, a first rib is provided on the inner wall of the first shell, a first notch is provided on the first rib, a second rib is provided on the inner wall of the second shell, a second notch is provided on the second rib, when the first shell and the second shell are covered, the first rib and the second rib are connected, and the connecting arm is installed in the first notch and the second notch.

[0014] In a feasible implementation, the arm width of the connecting arm along the up-down direction is smaller than the sum of the depths of the first notch and the second notch.

[0015] In a feasible implementation, the floor brush assembly further includes a tooth comb assembly, and the tooth comb assembly is arranged between the first shell and the second shell; the roller brush assembly includes a cleaning body and bristles arranged on the cleaning body;

[0016] The tooth comb assembly extends into the cleaning cavity, the end of the tooth comb assembly is arranged toward the cleaning body, and part of the tooth comb assembly extends into the bristles.

[0017] In a feasible implementation, a plurality of pressing plates are provided on the bottom end of the second shell, and the pressing plates are higher than the bottom end of the second shell and connected to the bottom end of the second shell;

[0018] The second shell is provided with a plurality of air inlets, each of which corresponds to the pressing plate one by one, and each of the air inlets is located at the front end of the pressing plate.

[0019] In a feasible implementation, an opening is provided on the second shell, and the opening can expose the roller brush assembly. The opening is connected with the cleaning cavity to form a main air duct; and the air inlet is connected with the cleaning cavity to form an auxiliary air duct.

[0020] In a feasible implementation, a pressure relief hole is provided on the first shell, and a pressure relief valve is installed on the pressure relief hole. When the pressure relief valve is opened, the pressure relief valve exposes the pressure relief hole so that the pressure relief hole is connected to the cleaning chamber fluid; when the pressure relief valve is closed, the pressure relief valve covers the pressure relief hole.

[0021] In a feasible implementation, the first housing includes a first fixed shell cover and a first detachable shell cover, the first fixed shell cover is provided with a button, and the button is slid to separate the first detachable shell cover from the first fixed shell cover.

[0022] In a feasible implementation, the floor brush assembly further includes an impeller assembly and a rotating assembly, and the impeller assembly drives the rotating assembly to rotate thereby driving the roller brush assembly.

[0023] In a feasible implementation, the impeller assembly includes an impeller housing, an impeller arranged in the impeller housing, an impeller shaft and an impeller bracket, the impeller is sleeved on the impeller shaft, and the impeller bracket is arranged at both ends of the impeller shaft;

[0024] A rotating ball is arranged in the impeller bracket, and two ends of the impeller shaft are arranged in the rotating ball and rotate relative to the rotating ball.

[0025] In a feasible implementation, the impeller housing is rotatable around a rotation axis, and the rotation axis is arranged parallel to the impeller axis.

[0026] In a feasible implementation, a disassembly cover plate is provided on the second outer shell, and the disassembly cover plate is located at the bottom end of the impeller housing and is detachable relative to the second outer shell.

[0027] In a feasible implementation, the rotating assembly includes a first pulley, a second pulley and a belt, the first pulley is sleeved on the rotating shaft of the cleaning body, the second pulley is sleeved on the impeller shaft, and the belt is tensioned between the first pulley and the second pulley.

[0028] In a feasible implementation, the axis of the connecting shaft is arranged between the axis of the impeller shaft and the axis of the roller brush assembly.

[0029] Correspondingly, the utility model also provides a vacuum cleaner, comprising the floor brush assembly as described in the first aspect of the utility model.

[0030] The implementation of this utility model has the following beneficial effects:

[0031] The floor brush assembly and vacuum cleaner provided by the present application, wherein the floor brush assembly includes: a floor brush housing; a roller brush assembly, which is arranged in the floor brush housing and connected to the floor brush housing through a connecting assembly; a connecting assembly, which is arranged at both ends of the roller brush assembly, and includes a connecting shaft, a connecting arm and a roller brush connecting part, the two ends of the connecting arm are respectively connected to the connecting shaft and the roller brush connecting part, the connecting shaft is installed in the floor brush housing, and the roller brush connecting part is connected to the roller brush assembly; the connecting arm and the roller brush connecting part can drive the roller brush assembly to rotate around the connecting shaft within a certain range, so that the roller brush assembly can adjust the relative position of the roller brush assembly in the floor brush housing according to different surfaces to be cleaned. It can reduce the friction of the floor brush assembly on high-hair and high-resistance carpets, and avoid the situation where the floor brush assembly does not clean well on uneven surfaces to be cleaned, while optimizing the noise and extending the service life of the floor brush assembly.

[0032] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute improper limitations on the present application.

[0034] Figure 1 It is a schematic diagram of the disassembled structure of the floor brush assembly according to one embodiment of the utility model;

[0035] Figure 2 It is a structural schematic diagram of the floor brush assembly according to one embodiment of the utility model when the pressure relief valve is closed;

[0036] Figure 3 is a cross-sectional view of a floor brush assembly according to an embodiment of the utility model when the pressure relief valve is closed;

[0037] Figure 4 It is a structural schematic diagram of the floor brush assembly according to one embodiment of the utility model when the pressure relief valve is opened;

[0038] Figure 5 It is a cross-sectional view of the floor brush assembly according to one embodiment of the utility model when the pressure relief valve is opened;

[0039] Figure 6 It is a structural schematic diagram of the first housing according to an embodiment of the utility model;

[0040] Figure 7 yes Figure 6 A partial structural enlargement of the

[0041] Figure 8 This is a schematic diagram of the structure of the second housing according to an embodiment of the present invention. Figure 1 ;

[0042] Fig. 9 This is a schematic diagram of the structure of the second housing according to an embodiment of the present invention. Figure 2 ;

[0043] Fig.10 yes Fig. 9 A partial structural enlargement of the

[0044] Fig.11 It is a partial structural schematic diagram of a floor brush assembly according to an embodiment of the utility model;

[0045] Fig.12 It is a partial structural cross-sectional view of a floor brush assembly according to an embodiment of the utility model;

[0046] Fig.13 It is a schematic diagram of the disassembled structure of part of the floor brush assembly according to an embodiment of the utility model;

[0047] Fig.14 It is a structural schematic diagram of a roller brush assembly, a rotating assembly, a connecting assembly and an impeller assembly according to an embodiment of the utility model;

[0048] Fig.15 This is a structural schematic diagram of a roller brush assembly and a connecting assembly according to an embodiment of the utility model;

[0049] Fig.16 It is a structural schematic diagram of an impeller assembly according to an embodiment of the utility model;

[0050] Fig.17 yes Fig.16 A cross-sectional view of an impeller assembly is shown;

[0051] Fig.18 This is a schematic diagram of the structure of the impeller shaft, connecting assembly and roller brush assembly according to an embodiment of the utility model. Figure 1 ;

[0052] Fig.19 This is a schematic diagram of the structure of the impeller shaft, connecting assembly and roller brush assembly according to an embodiment of the utility model. Figure 2 .

[0053] Reference numerals in the figures:

[0054] 1-floor brush housing, 11-first housing, 111-first protrusion, 112-first groove, 113-first rib, 114-first notch, 115-pressure relief valve, 116-first fixed housing cover, 1161-button, 117-first disassembly housing cover, 118-pressure relief hole, 12-second housing, 121-second protrusion, 122-second groove, 123-second rib, 124-second notch, 125-pressing plate, 126-air inlet, 127-opening, 128-disassembly cover plate, 13-cleaning chamber;

[0055] 2-roller brush assembly, 21-cleaning body, 22-brush bristles;

[0056] 3-connecting assembly, 31-connecting shaft, 32-connecting arm, 33-roller brush connecting part;

[0057] 4-tooth comb assembly;

[0058] 5-impeller assembly, 51-impeller housing, 52-impeller, 53-impeller shaft, 54-impeller bracket, 55-rotating ball, 56-rotating shaft;

[0059] 6-rotating assembly, 61-first pulley, 62-second pulley, 63-belt. DETAILED DESCRIPTION

[0060] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0061] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0063] During the use of the vacuum cleaner, the floor brush assembly is used to clean the floor, carpet, etc. The roller brush assembly in the floor brush assembly can rotate to adhere to the hair, dust, etc. on the floor and carpet, and then suck the hair and dust into the dust box through suction. Compared with the vacuum cleaner with only a suction port, the vacuum cleaner has improved the suction effect and is more suitable for cleaning carpets. However, in this process, since the roller brush assembly and the floor brush shell of the floor brush assembly are fixedly connected by a connecting assembly, the connecting assembly is easy to wear, and when working on an uneven surface to be cleaned, since the relative position of the roller brush assembly in the floor brush assembly remains unchanged, the floor brush shell contacts the higher surface to be cleaned when the floor brush assembly is cleaning, resulting in a large gap between the roller brush assembly and the lower surface to be cleaned, and the lower surface to be cleaned may not be cleaned clean, resulting in dirt residue. Also, when cleaning a high-hair and high-resistance carpet, the hair of the carpet blocks the suction port of the floor brush assembly, causing the impeller to stop rotating and the roller brush assembly to stop rotating.

[0064] This embodiment provides a floor brush assembly, such as Figure 1 , 2 , 11 and 15, comprising: a floor brush housing 1; a roller brush assembly 2, which is arranged in the floor brush housing 1 and connected to the floor brush housing 1 through a connecting assembly 3; a connecting assembly 3, which is arranged at both ends of the roller brush assembly 2, and comprises a connecting shaft 31, a connecting arm 32 and a roller brush connecting portion 33, the two ends of the connecting arm 32 are respectively connected to the connecting shaft 31 and the roller brush connecting portion 33, the connecting shaft 31 is installed in the floor brush housing 1, and the roller brush connecting portion 33 is connected to the roller brush assembly 2; the connecting arm 32 and the roller brush connecting portion 33 can drive the roller brush assembly 2 to rotate around the connecting shaft 31 within a certain range, so that the roller brush assembly 2 can adjust the relative position of the roller brush assembly 2 in the floor brush housing 1 according to different surfaces to be cleaned. The connecting component 3 connects the floor brush shell 1 and the roller brush assembly 2. The connecting arm 32 and the roller brush connecting part 33 in the connecting component 3 and the relative position of the roller brush assembly 2 in the floor brush assembly can be changed. When the roller brush assembly 2 cleans the uneven surface to be cleaned, the floor brush shell 1 contacts the higher surface to be cleaned, and the bottom end of the roller brush assembly 2 faces the lower surface to be cleaned. In previous floor brush assemblies, since the connecting component 3 is fixed, the relative position of the roller brush assembly 2 to the floor brush shell 1 is always kept fixed, but in the present application, the roller brush assembly 2 can gradually approach the lower surface to be cleaned under the action of gravity, so that the roller brush assembly 2 can have a better cleaning effect on the lower surface to be cleaned. Similarly, when the surface to be cleaned is a high-hair and high-resistance carpet, in previous floor brush assemblies, when the floor brush assembly is cleaning on the high-hair and high-resistance carpet, the carpet hairs can easily block the suction port of the floor brush housing 1, causing the roller brush assembly 2 to stop rotating. In this embodiment, because the roller brush assembly 2, the connecting arm 32 and the roller brush connecting part 33 can rotate, the airflow exchange can occur inside the floor brush housing 1 with the outside world, and the roller brush assembly 2 will not be blocked.

[0065] In one possible implementation, Figure 1-5 As shown, the floor brush housing 1 includes a first shell 11 and a second shell 12 which are arranged opposite to each other in the up-down direction. A cleaning cavity 13 is defined between the first shell 11 and the second shell 12 , and the roller brush assembly 2 is installed in the cleaning cavity 13 . One end of the cleaning chamber 13 is connected to the atmosphere, and the other end of the cleaning chamber 13 is connected to the negative pressure source fluid of the vacuum cleaner. In this embodiment, it is a pneumatic floor brush. The negative pressure source generates a pressure difference, generating a high-speed fluid flowing from the cleaning chamber 13 to the negative pressure source. The high-speed fluid passes through the impeller 52, driving the impeller 52 to rotate, and the rotation of the impeller 52 drives the roller brush assembly 2 to rotate, instead of setting a separate roller brush motor to drive the roller brush assembly 2 to rotate. This setting can reduce the weight of the floor brush assembly and can also reduce the cost of the floor brush assembly. However, it will cause the suction force to be not strong enough, and after the cleaning chamber 13 is blocked, the roller brush assembly 2 will stop rotating. The setting of the connecting assembly 3 can prevent the roller brush assembly 2 from always being fixed at the same position in the floor brush housing 1, but will adjust the relative position in the floor brush housing 1 according to different cleaning surfaces, so that the movement of the roller brush assembly 2 is more flexible, and during the vacuuming process, due to the up and down movement of the roller brush assembly 2 in the floor brush housing 1, the degree of connection between the cleaning chamber 13 and the atmosphere can be increased, thereby avoiding the blockage of the floor brush assembly. The floor brush housing 1 is configured as a structure in which the first shell 11 and the second shell 12 are connected, so that the first shell 11 and the second shell 12 can be easily demoulded. Compared with the floor brush housing 1 as an integral structure, it is convenient for the production of the floor brush housing 1, and in case the first shell 11 or the second shell 12 is damaged, only the damaged shell can be replaced.

[0066] In one possible implementation, Figure 6-10 As shown, a first protrusion 111 is provided on the inner wall of the first shell 11, and a second protrusion 121 is provided on the inner wall of the second shell 12. When the first shell 11 and the second shell 12 are covered, the first protrusion 111 and the second protrusion 121 are connected; a first groove 112 is provided on the end of the first protrusion 111 connected to the second protrusion 121, and a second groove 122 is provided on the end of the second protrusion 121 connected to the first protrusion 111, and the connecting shaft 31 is installed in the installation hole formed by the first groove 112 and the second groove 122. The first shell 11 and the second shell 12 both have a certain wall thickness. The first protrusion 111 and the second protrusion 121 are provided to provide support points for the installation of the connecting shaft 31. The first groove 112 and the second groove 122 are respectively provided at the ends where the first protrusion 111 and the second protrusion 121 are connected. The connecting shaft 31 is installed in the first groove 112 and the second groove 122, so that the connecting shaft 31 is clamped between the first shell 11 and the second shell 12, and the direction of the axis of the connecting shaft 31 is the same as the long side direction of the first shell 11 and the second shell 12.

[0067] In a possible implementation, the sizes of the first groove 112 and the second groove 122 match the size of the connecting shaft 31. The sizes of the first groove 112 and the second groove 122 can just accommodate the connecting shaft 31, and it is necessary to ensure that the connecting shaft 31 can only rotate in the first groove 112 and the second groove 122, and will not be displaced in any other direction in the first groove 112 and the second groove 122.

[0068] In one possible implementation, Figure 6-10 As shown, a first rib 113 is provided on the inner wall of the first housing 11, and a first notch 114 is provided on the first rib 113; a second rib 123 is provided on the inner wall of the second housing 12, and a second notch 124 is provided on the second rib 123; when the first housing 11 and the second housing 12 are covered, the first rib 113 and the second rib 123 are connected, and the connecting arm 32 is installed in the first notch 114 and the second notch 124. By respectively providing the first notch 114 and the second notch 124 on the first rib 113 and the second rib 123, the installation position of the connecting shaft 31 is limited. The connecting arm 32 and the roller brush connecting part 33 rotate around the connecting shaft 31, which can reduce the friction force of the floor brush assembly during the rotation when vacuuming. Compared with the previous connection assembly 3 and the floor brush assembly being relatively fixed, the structure of the connection assembly 3 in this embodiment can reduce the friction between the connection assembly 3 and the roller brush assembly 2, increase the service life of the connection assembly 3, and reduce the noise of the floor brush assembly when working.

[0069] In a possible implementation, the arm width of the connecting arm 32 in the vertical direction is smaller than the sum of the depths of the first notch 114 and the second notch 124. That is, there is a gap between the two sides of the connecting arm 32 and the bottom of the first notch 114 or the bottom of the second notch 124, so that when the roller brush connecting portion 33 moves with the roller brush assembly 2, the connecting arm 32 will also rotate around the connecting shaft 31. If the connecting arm 32 is just stuck in the first notch 114 and the second notch 124, there is no rotation space, which will cause the roller brush connecting portion 33 to be unable to rotate. If the roller brush connecting portion 33 and the roller brush assembly 2 are forced to move, the connecting arm 32 will be deformed by force.

[0070] In one possible implementation, Figure 1 , 11As shown in Figure 13, the floor brush assembly also includes a tooth comb assembly 4, which is arranged between the first housing 11 and the second housing 12; the roller brush assembly 2 includes a cleaning body 21 and bristles 22 arranged on the cleaning body 21; the tooth comb assembly 4 extends into the cleaning cavity 13, the end of the tooth comb assembly 4 is arranged toward the cleaning body 21, and part of the tooth comb assembly 4 extends into the bristles 22. The tooth comb assembly 4 is arranged to interfere with the bristles 22 on the cleaning body 21, forming an action similar to combing hair with a comb, and the hair entangled on the cleaning body 21 and the bristles 22 and other garbage that is difficult to be sucked away by suction are combed on the tooth comb assembly 4, and then sucked in by the suction of the vacuum cleaner itself, so as to achieve the purpose of not entangled hair on the cleaning body 21 and the bristles 22.

[0071] In one possible implementation, Figure 8 , 11 As shown in Figure 12, a plurality of pressing plates 125 are provided on the bottom end of the second housing 12, and the pressing plates 125 are higher than the bottom end of the second housing 12 and connected to the bottom end of the second housing 12; a plurality of air inlets 126 are provided on the second housing 12, and the air inlets 126 correspond to the pressing plates 125 one by one, and the air inlets 126 are located at the front end of the pressing plates 125. The air inlet 126 is provided at the front end of the pressing plates 125, and the pressing plates 125 are provided at the bottom end of the second housing 12, that is, the air inlet 126 is provided at the front end of the second housing 12, and in this embodiment, the front end is in the forward direction when the vacuum cleaner is working. The air inlet 126 is provided at the front end of the second housing 12, and when the vacuum cleaner is working, dust and hair in front of the forward direction of the vacuum cleaner can be vacuumed. The pressing plates 125 are provided mainly to press down the high-hair and high-resistance carpet when vacuuming, so as to reduce the density of the local hair of the high-hair and high-resistance carpet, so as not to block the entire air inlet, so that the floor brush assembly can work normally. The air inlet 126 and the pressure plate 125 work in coordination. In the present application, the number and size of the openings of the air inlet 126 are not limited.

[0072] In one possible implementation, Figure 8-9 As shown in Figures 11-12, the second housing 12 is provided with an opening 127, which can expose the roller brush assembly 2. The opening 127 is connected to the cleaning chamber 13 to form a main air duct; the air inlet 126 is connected to the cleaning chamber 13 to form an auxiliary air duct. When the vacuum cleaner is working, the negative pressure source generates a pressure difference, and most of the air mixed with dust is sucked into the opening 127, and then sucked into the negative pressure source after passing through the cleaning chamber 13 and the impeller 52. Here, the opening 127 and the cleaning chamber 13 are connected to form a main air duct, and a small amount of air mixed with dust is sucked into the air inlet 126, and then flows through the cleaning chamber 13 to the impeller 52 and then sucked into the negative pressure source. Here, the air inlet 126 and the cleaning chamber 13 are connected to form an auxiliary air duct.

[0073] In one possible implementation, Figure 2-5As shown, a pressure relief hole 118 is provided on the first housing 11, and a pressure relief valve 115 is installed on the pressure relief hole 118. When the pressure relief valve 115 is opened, the pressure relief valve 115 exposes the pressure relief hole 118 so that the pressure relief hole 118 is in fluid communication with the cleaning chamber 13; when the pressure relief valve 115 is closed, the pressure relief valve 115 covers the pressure relief hole 118. When the vacuum cleaner cleans a high-hair and high-resistance carpet, the opening 127 and the air inlet 126 are blocked by hair, causing the impeller 52 and the roller brush assembly 2 to stop rotating. At this time, the pressure relief valve 115 is opened so that one end of the pressure relief hole 118 is connected to the atmosphere, and the other end of the pressure relief hole 118 is connected to the cleaning chamber 13 to form a pressure relief channel. The air mixed with dust is sucked into the pressure relief hole 118, and then sucked into the negative pressure source after passing through the cleaning chamber 13 and the impeller 52, so that the impeller 52 and the roller brush assembly 2 rotate again, and the vacuum cleaner resumes normal operation. The pressure relief valve 115 can be arranged on the outer wall of the first shell 11. The first shell 11 and the second shell 12 are arranged relative to each other in the up-down direction. The first shell 11 is arranged on the upper part of the second shell 12. In the present application, the up-down direction is the same as the up-down direction of the vacuum cleaner when the vacuum cleaner is working. The pressure relief valve 115 is arranged at the top of the first shell 11 and is arranged through the first shell 11. The pressure relief valve 115 is connected to the cleaning chamber 13. When the vacuum cleaner is vacuuming, when the air inlet 126 is blocked, there is no air circulation in the cleaning chamber 13, so that the roller brush assembly 2 cannot rotate. At this time, the pressure relief valve 115 can be slid, and the cleaning chamber 13 is connected to the air through the pressure relief valve 115, so that the roller brush assembly 2 rotates again, ensuring the normal operation of the vacuum cleaner. There are two usage scenarios of the pressure relief valve 115. One is that the cleaning environment changes suddenly, when there is no air circulation in the cleaning chamber 13, the roller brush assembly 2 does not rotate, and the floor brush assembly is adsorbed on the carpet like a suction cup and cannot move, the pressure relief valve 115 can be opened at this time to connect the cleaning chamber 13 with the air; another way is to open the pressure relief valve 115 before the vacuum cleaner vacuums the high-hair and high-resistance carpet to allow the cleaning chamber 13 to circulate with air to ensure the normal operation of the roller brush assembly 2.

[0074] In one possible implementation, Figure 2-5 As shown, the first housing 11 includes a first fixed housing cover 116 and a first detachable housing cover 117. A sliding button 1161 is provided on the first fixed housing cover 116. The sliding button 1161 can separate the first detachable housing cover 117 from the first fixed housing cover 116. The first fixed housing cover 116 is fixedly connected to the second housing 12. The first detachable housing cover 117 and the first fixed housing cover 116 are detachably connected. When the roller brush assembly 2 is entangled with hair and fails, or when the roller brush assembly 2 is too much hair and dust adhered to the roller brush assembly 2 during the vacuuming process, the button 1161 provided on the first fixed housing cover 116 can be slid to separate the first detachable housing cover 117 to better operate the roller brush assembly 2 and the cleaning chamber 13.

[0075] In one possible implementation, Figure 11-14 As shown, the floor brush assembly also includes an impeller assembly 5 and a rotating assembly 6. The impeller assembly 5 drives the roller brush assembly 2 to rotate by driving the rotating assembly 6. When the vacuum cleaner is working, the negative pressure source generates a pressure difference, generating a high-speed fluid flowing from the cleaning chamber 13 to the negative pressure source. The high-speed fluid passes through the impeller 52, driving the impeller 52 to rotate. The rotation of the impeller 52 drives the roller brush assembly 2 to rotate, forming a negative pressure in the cleaning chamber 13, and the hair or dust on the surface to be cleaned is sucked into the cleaning chamber 13 and finally enters the dust box. In order to improve the dust collection effect of the vacuum cleaner, a roller brush assembly 2 is set in the cleaning chamber 13. The roller brush assembly 2 in this embodiment does not use a roller brush motor to drive the roller brush assembly 2 to rotate, but drives the rotating assembly 6 through the rotating impeller assembly 5 to drive the roller brush assembly 2 to rotate. That is, whether the roller brush assembly 2 rotates depends on whether the impeller assembly 5 rotates. If the cleaning chamber 13 is not connected to the air, the impeller assembly 5 will stop rotating, causing the roller brush assembly 2 to stop rotating.

[0076] In one possible implementation, Figure 16-17 As shown, the impeller assembly 5 includes an impeller housing 51 and an impeller 52, an impeller shaft 53 and an impeller bracket 54 arranged in the impeller housing 51. The impeller 52 is sleeved on the impeller shaft 53, and the impeller bracket 54 is arranged at both ends of the impeller shaft 53. The negative pressure source of the vacuum cleaner generates a pressure difference, which generates a high-speed fluid flowing from the cleaning chamber 13 to the negative pressure source. The high-speed fluid passes through the impeller 52, driving the impeller 52 and the impeller shaft 53 to rotate. The impeller bracket 54 remains stationary relative to 12. In a possible implementation, the number of impellers 52 is at least one. In this embodiment, two impellers 52 are provided. A rotating ball 55 is arranged in the impeller bracket 54, and both ends of the impeller shaft 53 pass through the rotating ball 55 and rotate relative to the rotating ball 55. The rotating ball 55 acts like a bearing. The impeller shaft 53 can rotate in the rotating ball 55. The rotating ball 55 is always fixed in the impeller bracket 54. The impeller bracket 54 is made of elastic material. When the impeller shaft 53 rotates, the rotating ball 55 made of elastic material can absorb part of the rotational force.

[0077] In one possible implementation, Figure 16-17 As shown, the impeller housing 51 can rotate around the rotating shaft 56, and the rotating shaft 56 is arranged parallel to the impeller shaft 53. When the vacuum cleaner is working, the user can rotate the impeller housing 51 around the rotating shaft 56 according to the vacuuming needs, and the rotating shaft 56 is parallel to the impeller shaft 53. Further, the rotating shaft 51 can coincide with the impeller shaft 53. The impeller housing 51 is generally cylindrical and is used to place the impeller 52. The cylindrical appearance is also convenient for ensuring that the air duct part is leaky during the rotation process.

[0078] In one possible implementation, Figure 3 , 5As shown in Figures 14 and 15, a disassembly cover plate 128 is provided on the second housing 12, and the disassembly cover plate 128 is located at the bottom end of the impeller housing 51 and is detachable relative to the second housing 12. The impeller housing 51 is arranged between the first housing 11 and the second housing 12. The disassembly cover plate 128 can be removed to clean the impeller 52 when the impeller 52 is stuck by large particles and cannot rotate. In a possible implementation, the impeller housing 51 includes a first housing portion and a second housing portion, the first housing portion is connected to the first housing 11, the second housing portion is connected to the second housing 12, the first housing portion and the first housing 11 are integrally formed, and the second housing portion and the second housing 12 are integrally formed.

[0079] In one possible implementation, Figure 11-14 As shown, the rotating assembly 6 includes a first pulley 61, a second pulley 62 and a belt 63. The first pulley 61 is sleeved on the rotating shaft of the cleaning body 21, the second pulley 62 is sleeved on the impeller shaft 53, and the belt 63 is tensioned between the first pulley 61 and the second pulley 62. The belt 63 is sleeved between the first pulley 61 and the second pulley 62. When the impeller shaft 53 rotates, the second pulley 62 is driven to rotate, and the belt 63 is driven to rotate through the second pulley 62, thereby driving the first pulley 61 to rotate, and then driving the cleaning body 21 to rotate.

[0080] In one possible implementation, Fig.18 and 19 As shown, the axis of the connecting shaft 31 is arranged between the axis of the impeller shaft 53 and the axis of the roller brush assembly 2. Theoretically, the closer the axis of the connecting shaft 31 is to the axis of the impeller shaft 53, the more stable the force on the belt 63 will be when the roller brush assembly 2 floats. However, due to space limitations, the closer the connecting shaft 31 is to the axis of the roller brush assembly 2, the more compact the structure will be and the smaller the size of the floor brush assembly will be. Therefore, the axis of the connecting shaft 31 is arranged between the axis of the impeller shaft 53 and the axis of the roller brush assembly 2. Since the roller brush assembly 2 floats in the initial position and moves upward due to the influence of large particles on the surface to be cleaned, the axis of the connecting shaft 31 is arranged on the line connecting the axis of the impeller shaft 53 and the axis of the roller brush assembly 2. This can make the motion trajectory of the roller brush assembly 2 and the motion trajectory of the connecting arm 32 of the connecting assembly 3 more closely match. Further, as Fig.19 As shown, in the left and right direction of the floor brush assembly, the axis of the connecting shaft 31 is projected on the midline of the line connecting the axis of the impeller shaft 53 and the axis of the roller brush assembly 2. Furthermore, the distance between the axis of the connecting shaft 31 and the line is 3-10 mm. Furthermore, by setting the impeller bracket 54 to be elastic, the axis of the impeller shaft 53 can be adjusted as the roller brush assembly 2 floats, thereby making the belt 63 transmission more stable.

[0081] This embodiment also provides a vacuum cleaner, including the floor brush assembly described in the above embodiment, and the vacuum cleaner includes a driving motor, which can drive the impeller assembly 5 to rotate, and the impeller assembly 5 drives the rotating assembly 6 to rotate, and then drives the roller brush assembly 2 to rotate. When the vacuum cleaner is vacuuming, the roller brush assembly 2 rotates. When the vacuum cleaner is vacuuming on an uneven surface to be cleaned, the roller brush assembly 2 will change the gap between it and the surface to be cleaned under the action of gravity, thereby achieving specific cleaning of different surfaces to be cleaned. A rotatable connecting assembly 3 is provided. The rotatable connecting assembly 3 in this application means that the connecting assembly 3 can rotate within a certain range. The purpose is to change the position of the roller brush assembly 2 relative to the floor brush housing 1, so that the friction force on the connecting assembly 3 can be reduced, and the life of the floor brush housing 1 can also be extended.

[0082] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A floor brush assembly, characterized in that: include: Floor brush housing (1); A roller brush assembly (2) is arranged in the floor brush housing (1) and connected to the floor brush housing (1) via a connecting assembly (3); The connecting assembly (3) is arranged at both ends of the roller brush assembly (2), and comprises a connecting shaft (31), a connecting arm (32) and a roller brush connecting portion (33); the two ends of the connecting arm (32) are respectively connected to the connecting shaft (31) and the roller brush connecting portion (33); the connecting shaft (31) is installed in the floor brush housing (1); and the roller brush connecting portion (33) is connected to the roller brush assembly (2); The connecting arm (32) and the roller brush connecting portion (33) can drive the roller brush assembly (2) to rotate around the connecting shaft (31) within a certain range, so that the roller brush assembly (2) can adjust the relative position of the roller brush assembly (2) in the floor brush housing (1) according to different surfaces to be cleaned.

2. The floor brush assembly according to claim 1, characterized in that: The floor brush housing (1) comprises a first shell (11) and a second shell (12) which are arranged opposite to each other in the up-down direction; a cleaning cavity (13) is defined between the first shell (11) and the second shell (12); and the roller brush assembly (2) is installed in the cleaning cavity (13).

3. The floor brush assembly according to claim 2, characterized in that: A first protruding piece (111) is provided on the inner wall of the first shell (11), and a second protruding piece (121) is provided on the inner wall of the second shell (12); when the first shell (11) and the second shell (12) are covered, the first protruding piece (111) and the second protruding piece (121) are connected; The end portion of the first protrusion (111) connected to the second protrusion (121) is provided with a first groove (112), and the end portion of the second protrusion (121) connected to the first protrusion (111) is provided with a second groove (122), and the connecting shaft (31) is installed in a mounting hole formed by the first groove (112) and the second groove (122).

4. The floor brush assembly according to claim 3, characterized in that: The sizes of the first groove (112) and the second groove (122) are adapted to the sizes of the connecting shaft (31).

5. The floor brush assembly according to claim 3, characterized in that: A first convex rib (113) is provided on the inner wall of the first shell (11), and a first notch (114) is provided on the first convex rib (113); a second convex rib (123) is provided on the inner wall of the second shell (12), and a second notch (124) is provided on the second convex rib (123); when the first shell (11) and the second shell (12) are covered, the first convex rib (113) and the second convex rib (123) are connected, and the connecting arm (32) is installed in the first notch (114) and the second notch (124).

6. The floor brush assembly according to claim 5, characterized in that: The arm width of the connecting arm (32) in the up-down direction is smaller than the sum of the depths of the first notch (114) and the second notch (124).

7. The floor brush assembly according to claim 2, characterized in that: The floor brush assembly further comprises a tooth comb assembly (4), wherein the tooth comb assembly (4) is arranged between the first housing (11) and the second housing (12); the roller brush assembly (2) comprises a cleaning body (21) and bristles (22) arranged on the cleaning body (21); The tooth comb assembly (4) extends into the cleaning chamber (13), the end of the tooth comb assembly (4) is arranged toward the cleaning body (21), and part of the tooth comb assembly (4) extends into the bristles (22).

8. The floor brush assembly according to claim 7, characterized in that: A plurality of pressing plates (125) are provided on the bottom end of the second shell (12), wherein the pressing plates (125) are higher than the bottom end of the second shell (12) and are connected to the bottom end of the second shell (12); The second shell (12) is provided with a plurality of air inlets (126), the air inlets (126) corresponding one to one with the pressing plate (125), and the air inlets (126) are located at the front end of the pressing plate (125).

9. The floor brush assembly according to claim 8, characterized in that: The second shell (12) is provided with an opening (127), the opening (127) being capable of exposing the roller brush assembly (2), the opening (127) being connected to the cleaning cavity (13) to form a main air duct; and the air inlet (126) being connected to the cleaning cavity (13) to form an auxiliary air duct.

10. The floor brush assembly according to claim 9, characterized in that: The first housing (11) is provided with a pressure relief hole (118), and a pressure relief valve (115) is installed on the pressure relief hole (118); when the pressure relief valve (115) is opened, the pressure relief valve (115) exposes the pressure relief hole (118) so that the pressure relief hole (118) is in fluid communication with the cleaning chamber (13); when the pressure relief valve (115) is closed, the pressure relief valve (115) covers the pressure relief hole (118).

11. The floor brush assembly according to claim 2, characterized in that: The first housing (11) comprises a first fixed housing cover (116) and a first detachable housing cover (117); the first fixed housing cover (116) is provided with a button (1161); the button (1161) is slid to separate the first detachable housing cover (117) from the first fixed housing cover (116).

12. The floor brush assembly according to claim 2, characterized in that: The floor brush assembly further comprises an impeller assembly (5) and a rotating assembly (6), wherein the impeller assembly (5) drives the rotating assembly (6) to drive the roller brush assembly (2) to rotate.

13. The floor brush assembly according to claim 12, characterized in that: The impeller assembly (5) comprises an impeller housing (51), an impeller (52) arranged in the impeller housing (51), an impeller shaft (53) and an impeller bracket (54), the impeller (52) being sleeved on the impeller shaft (53), and the impeller bracket (54) being arranged at both ends of the impeller shaft (53); A rotating ball (55) is arranged inside the impeller bracket (54), and both ends of the impeller shaft (53) are arranged inside the rotating ball (55) and rotate relative to the rotating ball (55).

14. The floor brush assembly according to claim 13, characterized in that: The impeller housing (51) can rotate around a rotation axis (56), and the rotation axis (56) is arranged parallel to the impeller shaft (53).

15. The floor brush assembly according to claim 13, characterized in that: The second outer shell (12) is provided with a disassembly cover plate (128), the disassembly cover plate (128) is located at the bottom end of the impeller housing (51) and is detachable relative to the second outer shell (12).

16. The floor brush assembly according to claim 13, characterized in that: The rotating assembly (6) comprises a first pulley (61), a second pulley (62) and a belt (63); the first pulley (61) is sleeved on the rotating shaft of the cleaning body (21); the second pulley (62) is sleeved on the impeller shaft (53); and the belt (63) is tensioned between the first pulley (61) and the second pulley (62).

17. The floor brush assembly according to claim 13, characterized in that: The axis of the connecting shaft (31) is arranged between the axis of the impeller shaft (53) and the axis of the roller brush assembly (2).

18. A vacuum cleaner, characterized in that: Comprising a floor brush assembly as described in any one of claims 1-17.

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