Corner cleaning type cleaner

Abstract

The embodiment of the present application discloses a corner cleaning type cleaner, comprising: a base, a cleaning chamber, a dry garbage collecting chamber, a wet garbage collecting chamber and a wiping and mopping chamber are sequentially arranged in the base from front to back; a front cleaning head is transversely rotatably connected in the cleaning chamber; a rear cleaning head is transversely rotatably connected in the wiping and mopping chamber; a side sweeping mechanism is mechanically coupled to one end of the front cleaning head and / or the rear cleaning head; and a driver is arranged in the base. According to the present application, two cleaning heads with different purposes are introduced, and only one driver is used to synchronously drive the two cleaning heads, so that the functions of sweeping and mopping are considered, the size of the cleaner is controlled within a reasonable range, and the sweeping blind area of the end is solved by arranging the side sweeping mechanism at the end of the cleaning head, so that the function requirements of the sweeping and mopping integrated are met, and the operator is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment, and in particular to a corner cleaning device. Background Technology

[0002] In daily cleaning, sweeping and mopping / wiping are performed separately and independently. Common cleaning appliances are divided into two types: dry cleaners and wet cleaners. Dry cleaners can only perform sweeping in dry or relatively dry environments and are generally only able to clean large-volume dirt (particles larger than 1cm in diameter or length), while they are ineffective at cleaning small particles (particles smaller than 2mm in diameter). Wet cleaners can only perform mopping or wiping in wet environments and are only able to clean small to medium-sized particles (particles smaller than 1cm in diameter) or liquid / semi-liquid / easily deformable dirt, but they cannot clean large-volume dirt. Therefore, whether a household has a dry cleaner or a wet cleaner, it is necessary to purchase another type of cleaning appliance. This increases the household's purchase cost and space occupation, and the frequent switching between the two types of cleaners also results in a poor user experience.

[0003] Traditional floor cleaners that combine sweeping and mopping functions still have the following technical problems during operation:

[0004] If only one dual-purpose cleaning head is used to clean the floor, this head must handle both large and small particles of dirt, which places extremely demanding requirements on the cleaning head and often results in a dilemma of "taking care of the large parts but neglecting the small parts." On the other hand, if multiple cleaning heads with different purposes are used to clean the floor, the excessive number of cleaning heads and multiple actuators will make the cleaner too cumbersome and inconvenient for the operator. In addition, whether a single dual-purpose cleaning head or multiple cleaning heads with different purposes are used, the ends of the cleaning heads often have cleaning blind spots due to the volume ratio of the transmission mechanism, resulting in the cleaner not cleaning thoroughly in application scenarios such as wall bases and narrow spaces.

[0005] Therefore, how to design a reasonable cleaning head assembly to balance the cleaning needs of large-volume dirt and small-particle dirt, and to solve the cleaning blind spots at the end, is an urgent problem to be solved for sweeping and mopping integrated cleaners. Summary of the Invention

[0006] The embodiments of the present invention provide a corner cleaning cleaner, which introduces two cleaning heads for different purposes, and uses only one driver to synchronously drive the two cleaning heads. Thus, while taking into account both sweeping and mopping functions, the size of the cleaner can be controlled within a reasonable range. At the same time, by setting a side sweeping mechanism at the end of the cleaning head, the problem of cleaning blind spots at the end is solved. It not only meets the functional requirements of sweeping and mopping in one, but also makes it easy for the operator to use.

[0007] To address the aforementioned technical problems, embodiments of the present invention disclose the following technical solutions:

[0008] A corner cleaning cleaner is provided, comprising:

[0009] The base, from front to back, is provided with a cleaning chamber, a dry waste collection chamber, a wet waste collection chamber, and a mopping chamber;

[0010] A front cleaning head, which is laterally rotatably connected to the cleaning chamber;

[0011] A rear cleaning head, which is laterally rotatably connected to the mopping chamber;

[0012] Side-sweeping mechanism, mechanically coupled to one end of the front cleaning head and / or the rear cleaning head; driver, disposed in the base; and

[0013] A transmission component that mechanically couples the front cleaning head and the rear cleaning head to the driver, for synchronously transmitting mechanical energy from the driver to the front cleaning head and the rear cleaning head;

[0014] The cleaning chamber and / or mopping chamber are provided with a side sweeping chamber for accommodating the side sweeping mechanism, and the side sweeping chamber is open at least at its bottom to expose at least a portion of the side sweeping mechanism toward the surface to be cleaned.

[0015] In addition to one or more of the features disclosed above, or as an alternative, the side-sweeping mechanism includes a side-sweeping roller brush and a side-sweeping transmission assembly, wherein the side-sweeping roller brush is mechanically coupled to the front cleaning head and / or the rear cleaning head via the side-sweeping transmission assembly; wherein the side-sweeping roller brush and the front cleaning head and / or the rear cleaning head are configured for eccentric or coaxial transmission.

[0016] In addition to one or more of the features disclosed above, or alternatively, the side-scan drive assembly includes:

[0017] A drive gear, which is coaxially connected to the front cleaning head and / or the rear cleaning head;

[0018] A primary driven gear, which meshes with the driving gear; and

[0019] A secondary driven gear meshes with the primary driven gear;

[0020] The side sweeping roller brush is mechanically coupled to the secondary driven gear.

[0021] In addition to one or more of the features disclosed above, or alternatively, the side-scan drive assembly includes:

[0022] The side brush is coaxially connected to the front cleaning head and / or the rear cleaning head via the key.

[0023] In addition to one or more of the features disclosed above, or alternatively, the front cleaning head includes:

[0024] A cylindrical front roller, which is laterally rotatably connected to the cleaning chamber; and

[0025] At least three radially arranged brush blades are provided on the circumference of the front roller, and the brush blades extend spirally around the axis of the front roller.

[0026] In addition to one or more of the features disclosed above, or as an alternative, it also includes:

[0027] The ash-throwing channel connects the cleaning chamber and the dry waste collection chamber.

[0028] In addition to one or more of the features disclosed above, or alternatively, each of the roller brush blades includes a plurality of bristles extending radially outward; the combing member is located on the rotation path of the roller brush blades such that the bristles of the roller brush blades are combed by the combing member as the front roller rotates periodically.

[0029] One of the above technical solutions has the following advantages or beneficial effects: by introducing two cleaning heads for different purposes, it can synchronously drive the two cleaning heads with only one driver, thus taking into account both sweeping and mopping functions while keeping the size of the cleaner within a reasonable range. At the same time, by setting a side sweeping mechanism at the end of the cleaning head, it solves the problem of blind spots at the end of the cleaning head, which not only meets the functional requirements of sweeping and mopping in one, but also makes it easy for the operator to use. Attached Figure Description

[0030] The technical solution and other beneficial effects of the present invention will become apparent from the following detailed description of specific embodiments of the invention, in conjunction with the accompanying drawings.

[0031] Figure 1 A perspective view of the corner cleaning device provided in an embodiment of the present invention;

[0032] Figure 2A perspective view of a corner cleaning device provided in an embodiment of the present invention, showing the transmission components;

[0033] Figure 3 This is a top view of the corner cleaning device provided in an embodiment of the present invention;

[0034] Figure 4 This is a bottom view of the corner cleaning device provided in an embodiment of the present invention;

[0035] Figure 5 for Figure 3 A three-dimensional sectional view cut along section line AA;

[0036] Figure 6 for Figure 3 A sectional view taken along section line AA;

[0037] Figure 7 This is a perspective view of the internal structure of the corner cleaning device provided in an embodiment of the present invention;

[0038] Figure 8 A perspective view of the comb-tooth component in the corner cleaning cleaner provided in an embodiment of the present invention;

[0039] Figure 9 This is a side view of the comb-tooth component in the corner cleaning cleaner provided in an embodiment of the present invention;

[0040] Figure 10 This is a side view of the comb-tooth component and the front cleaning head in the corner cleaning cleaner provided in an embodiment of the present invention.

[0041] Figure 11 A perspective view of the scraper in the corner cleaning cleaner provided in an embodiment of the present invention;

[0042] Figure 12 The figure shows a side view of the scraper and front cleaning head in the corner cleaning cleaner provided in the embodiment of the present invention. The figure shows one of its working states on the surface to be cleaned.

[0043] Figure 13 This is a perspective view of the scraper and front cleaning head in the corner cleaning cleaner provided in an embodiment of the present invention;

[0044] Figure 14 This is a top view of the internal structure of the dirty water squeezing mechanism in the corner cleaning cleaner provided in an embodiment of the present invention;

[0045] Figure 15 The rear view of the corner cleaning cleaner provided in the embodiment of the present invention shows the installation position of the side sweeping mechanism;

[0046] Figure 16This is an axial sectional view of the front cleaning head in the corner cleaning cleaner provided in an embodiment of the present invention, which shows the internal structure of the side sweeping mechanism;

[0047] Figure 17 The rear view of the corner cleaning cleaner provided in an embodiment of the present invention shows the side sweeping mechanism;

[0048] Figure 18 The left view of the corner cleaning cleaner provided in the embodiment of the present invention shows the installation position of the side sweeping mechanism;

[0049] Figure 19 This is an axial sectional view of the front cleaning head in the corner cleaning cleaner provided in an embodiment of the present invention, which shows the internal structure of the side sweeping mechanism;

[0050] Figure 20 The rear view of the corner cleaning cleaner provided in the embodiment of the present invention shows the installation position of the side sweeping mechanism;

[0051] Figure 21 The left view of the corner cleaning device provided in the embodiment of the present invention shows the installation position of the side sweeping mechanism. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] refer to Figure 1 , Figure 1 This is a perspective view of a corner cleaning device 1 that can implement embodiments of the present invention. The view shows the main components of the corner cleaning device 1, including:

[0054] The base 11 is provided with a cleaning chamber 111, a dry waste collection chamber 112, a wet waste collection chamber 113 and a mopping chamber 114 in sequence from front to back;

[0055] A front cleaning head 12 is laterally rotatably connected to the cleaning chamber 111;

[0056] The rear cleaning head 13 is laterally rotatably connected to the mopping chamber 114;

[0057] The driver, the driver being disposed in the base 11; and

[0058] A transmission component mechanically couples the front cleaning head 12 and the rear cleaning head 13 to the driver, for synchronously transmitting mechanical energy from the driver to the front cleaning head 12 and the rear cleaning head 13. The cleaning chamber 111 and the dry waste collection chamber 112 are connected to each other via a dust-throwing channel 1224; the combing component 123 is arranged upstream of the direction of waste transport in the dust-throwing channel 1224; the front cleaning head 12 includes:

[0059] A cylindrical front roller 125 is laterally rotatably connected to the cleaning chamber 111; and

[0060] At least three radially arranged brush blades 121 are arranged in the circumferential direction of the front roller, and the brush blades 121 extend in a spiral shape around the axis X1 of the front roller;

[0061] Each of the roller brush blades 121 includes multiple bristles extending radially outward. The combing member 123 is located on the rotation path of the roller brush blades 121, so that the bristles of the roller brush blades 121 are combed by the combing member 123 during the periodic rotation of the front roller 125. As the bristles pass through the combing member 123, hair, lint, filaments, and other dirt entangled on the bristles can be intercepted by the combing member. Furthermore, under the repeated cutting of the subsequent bristles, these dirt fragments can be cut into smaller pieces and carried forward again by the subsequent bristles as the roller brush blades continue to rotate. Subsequently, under the action of its own centrifugal force and inertial force, these dirt fragments are thrown into the dry waste collection chamber 112 through the ash throwing channel 1224 and thus collected. In the following text and throughout the instruction manual, the terms "front / forward / front side" and "rear / rear / rear side" should be understood as relative to the forward direction of the corner sweeping cleaner 1, the specific forward direction of which is as follows: Figure 1 and Figure 5 The direction indicated by arrow H is "front / forward / front side", and the direction opposite to arrow H is "back / rear / rear side".

[0062] As a further improvement, the transmission component 16 is at least one of a belt, a gear set, and a chain. (Refer to...) Figure 2 ,exist Figure 2 In the illustrated embodiment, the transmission component 16 is a rack and pinion structure. Specifically, the rack and pinion structure includes an annular transmission rack 161 connected end to end, and a front transmission gear 162 and a rear transmission gear 163 arranged on the same side. The front transmission gear 162 is fixed to one end of the front cleaning head 12, and the rear transmission gear 163 is fixed to one end of the rear cleaning head 13. The annular transmission rack 161 is sleeved on the front transmission gear 162 and the rear transmission gear 163 and meshes with the outer periphery of the front transmission gear 162 and the rear transmission gear 163 respectively. At the same time, the driver is mechanically coupled to the annular transmission rack 161, so that the driver synchronously transmits mechanical energy to the front cleaning head 12 and the rear cleaning head 13 through the annular transmission rack 161.

[0063] exist Figure 5 and Figure 8 In the illustrated embodiment, the combing component 123 includes:

[0064] Guide portion 1231, the guide portion 1231 being located upstream of the rotation direction of the roller brush blade 121; and

[0065] The comb teeth 1233 are integrally formed on the guide portion 1231 downstream of the rotation direction of the roller brush blade 121;

[0066] The comb portion 1233 includes a plurality of comb teeth 1234 arranged axially spaced along the front roller 125; each comb tooth 1234 extends from the guide portion 1231 toward the front roller 125 such that each comb tooth 1234 at least partially penetrates the rotation path of the roller brush blade 121. This allows hair, lint, filaments, and other debris entangled / encased on the bristles to be intercepted by the comb teeth 1234 as the bristles pass through the combing member 123. In a preferred embodiment, the penetration depth of each comb tooth 1234 is the same as its extension length.

[0067] Reference Figure 9 and Figure 10As a further improvement, the side of the guide portion 1231 opposite to the roller brush blade 121 is a guide surface 1231a with an arc-shaped cross-section. The radial outer end face of the roller brush blade 121 adapts to the guide surface 1231a during rotation. This forms a protective space between the guide portion 1231 and the front roller 125. The guide portion 1231 can prevent dirt intercepted on the comb teeth 1234 from splashing everywhere during the process of being cut into smaller dirt fragments by the bristles. Furthermore, with the periodic rotation of the roller brush blade, the roller brush blade can form a micro-airflow in the protective space that is consistent with its rotation direction. Under the influence of the micro-airflow, the cut dirt fragments can pass through the front baffle 122 more quickly.

[0068] exist Figure 5 and Figure 6 In the illustrated embodiment, the bottom wall of the cleaning chamber 111 has a cleaning opening 1111, such that when the front cleaning head 12 is installed in the cleaning chamber 111, at least a portion of the roller brush blades 121 are exposed through the cleaning opening 1111. This allows the roller brush blades to clean the surface to be cleaned through the cleaning opening 1111.

[0069] Reference Figure 5 , Figure 6 and Figure 7 As a further improvement, a front baffle 122 is arranged around the outer periphery of the front cleaning head 12; the front baffle 122 starts from the entrance of the dust throwing channel 1224 and extends along the rotation direction of the front roller 125 for at least 1 / 4 and at most 3 / 5 of the circumference before terminating at the front side of the front roller 125, so as to form the cleaning opening 1111 located between the lower edge 1223 of the front baffle 122 and the bottom wall of the cleaning chamber 111.

[0070] exist Figure 6 In the illustrated embodiment, when the front cleaning head 12 is installed in the cleaning chamber 111, a cleaning gap is formed between the inner side of the front baffle 122 and the front roller 125, and a cleaning inlet 126 is formed between the rear side 1112 of the cleaning opening 1111 and the front roller 125; the combing member 123 is arranged in the cleaning gap.

[0071] exist Figure 5 In the illustrated embodiment, the lower edge 1223 of the front baffle 122 defines the front side of the cleaning opening 1111; a scraper 124 is provided in the cleaning inlet 126, one end of the scraper 124 is connected to the rear side 1112 of the cleaning opening 1111, and the other end of the scraper 124 faces the surface S to be cleaned.

[0072] In the technical solution provided in the embodiments of the present invention, the scraper 124 can quickly gather dirt on the surface S to be cleaned, such as sewage, dust, lint, hair, and filamentous debris, so that the front cleaning head 12 can quickly clean the surface S to be cleaned when it is working, resulting in a higher cleanliness of the surface S after cleaning.

[0073] exist Figure 6 ,and Figure 12 In the illustrated embodiment, the front roller 125 rotates clockwise under the drive of the driver. Three radially arranged brush blades 121 on the circumference of the front roller rotate clockwise synchronously with the front roller 125. During rotation, the three brush blades 121 alternately contact the surface S to be cleaned, thereby sweeping the dirt on the surface S backward into the cleaning inlet 126. Under the action of its own centrifugal force and inertial force, the dirt is thrown into the dust throwing channel 1224 and finally collected by the dry waste collection chamber 112. In the following and throughout the specification, the term "towards the surface to be cleaned" should be understood as the other end of the scraper 124 extending towards the surface S to be cleaned. In one embodiment of the invention, the other end of the scraper 124 extends to be in close contact with the surface S to be cleaned, but this is not a limitation. In other embodiments, the other end of the scraper 124 may also be suspended above the surface S to be cleaned.

[0074] In order to increase the effective area of ​​scraper 124, refer to Figure 12 The scraper 124 extends along the axial direction X1 of the front roller 125.

[0075] Reference Figures 11 to 13 To prevent water stains or solid-liquid mixtures from being thrown into the dry waste collection chamber 112 during cleaning operations in a wet environment, the scraper 124 is provided with multiple water-guiding channels 1242 running through it. Adjacent water-guiding channels 1242 are spaced apart and arranged along the axial direction X1 of the front roller 125. This allows the water in the dirt to drain out after entering the cleaning inlet 126 and before entering the dust-throwing channel 1224, and to be retained on the surface S to be cleaned via the water-guiding channels 1242.

[0076] Reference Figure 12 and Figure 13 To improve the efficiency of draining moisture from the dirt, the scraper 124 has a guide surface 1241 on the side opposite to the front roller 125 to gather dirt. The cross-section of the guide surface 1241 is arc-shaped, and the radial outer end face of the roller brush blade 121 adapts to the guide surface 1241 during rotation. The drained water can quickly fall into the water channel 1242 after being guided by the guide surface 1241, while the relatively dry dirt is quickly thrown into the dust removal channel 1224 under the guidance of the guide surface 1241.

[0077] As a further improvement, a water guiding surface 1243 is provided on the material guiding surface 1241. Water or solid-liquid mixtures of dirt can be more quickly introduced into the water guiding channel 1242 through the water guiding surface 1243.

[0078] Reference Figure 2 , Figure 4 and Figure 14 The base 11 also includes a wet waste collection chamber 113 and a mopping chamber 114, which are arranged sequentially from front to back after the dry waste collection chamber 112. A rear cleaning head 13 is laterally rotatably connected to the mopping chamber 114. In other embodiments, the top of the base 11 has a connector 15, through which the corner cleaning cleaner 1 can be connected to other accessories, such as the cleaner's handle or a power bank. Simultaneously, at least three non-collinearly arranged rollers 1151 are rotatably connected to the bottom of the base 11.

[0079] In practical use, the corner cleaning cleaner 1 can operate in a combined sweeping and mopping mode, where the front cleaning head 12 performs the sweeping function and the rear cleaning head 13 performs the mopping function. To further improve cleaning efficiency, a spray head 1222a for spraying cleaning water or detergent is typically provided on the front side of the front baffle 122. Before or during cleaning, the spray head 1222a sprays cleaning water or detergent onto the path to be cleaned. Spraying cleaning water or detergent onto the path to be cleaned improves cleaning efficiency and sweeping ratio. Figure 6 In the illustrated embodiment, the corner cleaning cleaner 1 has an internally extending liquid supply pipe 1222b for supplying cleaning agent or cleaning water to the spray head 1222a. In other embodiments, at least one lighting lamp 1221 is provided on the front side of the front baffle 122. The lighting lamp can be turned on in a dim environment to illuminate the area to be cleaned, thereby providing visibility to the user and improving the user experience of cleaning operations.

[0080] The front cleaning head 12 primarily cleans up large-volume debris upstream of the cleaning path, such as large dust particles (typically with a particle radius of 2mm or larger), hair, rice grains, and vegetable leaves. A dust-throwing channel 1224 connects the sweeping chamber 111 and the dry waste collection chamber 112. Large-volume debris swept up by the front cleaning head 12 passes through the dust-throwing channel 1224 under the influence of gravity and centrifugal force. The waste is thrown into the dry waste collection chamber 112. Then, the cleaning head 13, downstream of the cleaning path, entrains and adsorbs the small particles of dirt (usually with a particle radius of less than 2 mm) and solid-liquid mixtures remaining after the cleaning head 12 has been cleaned. The wet waste collection chamber 113 and the mopping chamber 114 are connected by a water collection channel 1131. The solid-liquid mixture (i.e., sewage, containing small particles of dust with a particle radius of less than 2 mm and other soluble dirt) adsorbed and entrained by the rear cleaning head 13 enters the wet waste collection chamber 113 through the water collection channel 1131 under the action of its own gravity and centrifugal force.

[0081] In a preferred embodiment, the front cleaning head 12 is typically in the form of a roller brush, i.e., it has a generally cylindrical front roller with at least three radially arranged roller brush blades 121 arranged circumferentially. The roller brush blades 121 extend spirally around the axis X1 of the front roller, wherein each roller brush blade 121 includes multiple radially extending bristles. The rear cleaning head 13 is typically in the form of a roller, i.e., it has a generally cylindrical rear roller with a circumferentially arranged absorbent layer 131. The absorbent layer 131 is typically made of an absorbent material with a certain degree of elasticity, such as PVA foam, synthetic fibers, plant fibers, sponges, etc. Regardless of the absorbent material used, the absorbent layer 131 releases the absorbed wastewater after being compressed and contracted. To collect the released wastewater, an extrusion assembly is usually installed in the cleaning channel. The extruded solid-liquid mixture (i.e., wastewater) needs to be guided and collected in a timely manner; otherwise, stains will remain on the cleaned floor, reducing the user experience. Therefore, existing cleaning equipment generally uses a vacuum suction device to draw the extruded solid-liquid mixture into a collection bin for collection. However, cleaners using vacuum suction devices still have the following technical problems during use:

[0082] Although a vacuum suction device is used to guide and collect the extruded solid-liquid mixture, the additional vacuum suction device not only increases the manufacturing cost of the cleaning equipment, but also adds weight, which reduces the user experience. In addition, the vacuum suction device generates a lot of noise when it is working, which further detracts from the user experience.

[0083] To address this, embodiments of this application introduce a dirty water extrusion mechanism for a cleaning head, which can guide and collect the extruded solid-liquid mixture without introducing a vacuum suction device, thereby improving the user experience.

[0084] Reference Figure 3 and Figure 4 , Figure 3 A longitudinal sectional view of a dirty water extrusion mechanism for a cleaning head according to an embodiment of the present invention is shown. The rear cleaning head 13 of the dirty water extrusion mechanism is laterally rotatably connected to the base 11. The rear cleaning head 13 has an imaginary axis of rotation X2 and a longitudinal center plane P. z and the transverse center plane P x The longitudinal center plane P z The transverse center plane P is defined as extending in the vertical direction. x Defined as extending in the horizontal direction, the longitudinal center plane P z With the transverse center plane P x The axes of rotation X2 are formed by the intersection of the axes, so that the rear cleaning head 13 is imaginarily divided into a first zone 133, a second zone 134, a third zone 135 and a fourth zone 136 in the circumferential direction; a rear baffle 132 is arranged around the outer periphery of the rear cleaning head 13.

[0085] The rear baffle 132 extends circumferentially at least in the first region 133, and the extended section of the rear baffle 132 is spaced apart from the cleaning head 13 to form a cleaning channel K between the rear baffle 132 and the rear cleaning head 13; an extrusion assembly 14 is arranged in the cleaning channel K. This design allows for the guidance and collection of the extruded solid-liquid mixture without the need for a vacuum suction device, thereby reducing the manufacturing cost of the cleaning equipment, lowering the overall weight, reducing operating noise, and ultimately improving the user experience.

[0086] Refer again Figure 3 The extrusion assembly 14 has a dewatering channel 143, which has the following characteristics:

[0087] The water inlet 1412 is aligned with the rotation direction R of the rear cleaning head 13; and

[0088] The water outlet 1411 is opposite to the rotation direction R of the rear cleaning head 13;

[0089] Wherein, at least one section of the water squeezing channel 143 has a cross-sectional area that gradually decreases in the rotation direction R of the rear cleaning head 13, so that the cross-sectional area of ​​the water outlet 1411 is smaller than the cross-sectional area of ​​the water collection port 1412.

[0090] Furthermore, at least one flow-limiting part 142 is arranged in the water squeezing channel 143, and the flow-limiting part 142 is located between the water collection port 1412 and the water outlet 1411. The flow-limiting part 142 is spaced apart from the side wall 141 of the water squeezing channel 143 and is adjacent to the water outlet 1411, so that the water flow in the water squeezing channel 143 is divided into at least two streams by the flow-limiting part 142 and then converges at the water outlet 1411. This allows the squeezed solid-liquid mixture to be gathered, facilitating subsequent guidance and collection.

[0091] Reference Figure 4 At least one flow restrictor 142 is aligned with the outlet 1411, defined as follows:

[0092] The distance between the flow restrictor 142 and the side wall 141 of the squeezing channel 143 is d; and

[0093] The dimension of the outlet 1411 in the direction of the rotation axis X2 is D; therefore, 2.5d ≤ D ≤ 6d. Figure 3 In the illustrated embodiment, there may be only one flow restrictor 142, where D = 6d. In other embodiments, a filter screen is also arranged between the flow restrictor 142 and the sidewall 141 of the squeezing channel 143.

[0094] To further facilitate the installation and cleaning of the squeezing channel 143, the rear baffle 132 can be designed to be removed from the base 11, and the sidewall 141 and flow-limiting portion 142 of the squeezing channel 143 are connected to the baffle 132 at their respective tops. In another embodiment, the sidewall 141 of the squeezing channel 143 is connected to the base 11 at its side, and the flow-limiting portion 142 is connected to the baffle 132 at its top.

[0095] To better expel wastewater from the rear cleaning head 13, the sidewall 141 is configured to at least partially penetrate the absorbent layer 131 of the cleaning head 13. In a preferred embodiment, the penetration amount of the sidewall 141 is 0.05 to 0.2 times the thickness of the absorbent layer 131.

[0096] Furthermore, to prevent backflow of squeezed-out wastewater, the outlet 1411 cannot be located near the top of the rear cleaning head 13. Define the line connecting the outlet 1411 and the rotation center of the cleaning head 13 as the outlet positioning line 144. Then, the outlet positioning line 144 and the longitudinal center plane P... z A positioning angle α is formed between them, the magnitude of which is 30° to 75°. In a preferred embodiment, the magnitude of the positioning angle α is 75°. In other embodiments, the rear baffle 132 extends from the end of the sprue positioning line 144 across the longitudinal center plane P. zExtending to zone 134 and terminating at the said transverse center plane P x The gap between the rear baffle 132 in the second zone 134 and the water-absorbing layer 131 is 1-5 mm.

[0097] In a preferred embodiment, the corner cleaning cleaner 1 has a center line Y in the front-to-back direction, and the water outlet 1411 is arranged near the center line Y. Furthermore, to better collect the squeezed-out wastewater, the water collection channel 1131 can be configured as follows: Figure 2 The location shown is downstream of outlet 1411. (Refer to...) Figure 1 In another embodiment, the bottom of the water collection channel 1131 is configured with a guide slope U, wherein the guide slope U and the opposite end of the rear cleaning head 13 penetrate 0.1 to 0.3 times the thickness of the absorbent layer 131, thereby further squeezing the absorbent layer 131 to release residual moisture. Furthermore, the opposite end of the rear cleaning head 13 and the guide slope U has a tangential direction S, and a guide angle is formed between the extending direction of the guide slope U and the tangential direction S, the size of which is 30° to 75°. In a preferred embodiment, the size of the guide angle is 60°.

[0098] exist Figures 15 to 18 In the illustrated embodiment, the corner cleaning cleaner 1 further includes a side sweeping mechanism 17, which is mechanically coupled to one end of the front cleaning head 12 and / or the rear cleaning head 13.

[0099] The cleaning chamber 111 and / or the mopping chamber 114 are provided with a side sweeping chamber 1113 for accommodating the side sweeping mechanism 17. The side sweeping chamber 1113 is open at least at its bottom to expose at least part of the side sweeping mechanism 17 toward the surface to be cleaned.

[0100] Furthermore, the side sweeping mechanism 17 includes a side sweeping roller brush 174 and a side sweeping transmission assembly. The side sweeping roller brush 174 is mechanically coupled to the front cleaning head 12 and / or the rear cleaning head 13 through the side sweeping transmission assembly. The side sweeping roller brush 174 is eccentrically driven to the front cleaning head 12 and / or the rear cleaning head 13.

[0101] To shorten the length, Figures 15 to 18 The illustrated embodiment shows only the application scenario where the side sweeping mechanism 17 is mechanically coupled to the front cleaning head 12. Although not shown here, those skilled in the art should understand that the side sweeping mechanism 17 is also applicable to the case where it is coupled to the rear cleaning head 13.

[0102] Specifically, the side sweep transmission assembly includes:

[0103] The drive gear 171 is coaxially connected to the front cleaning head 12.

[0104] A driven gear 172, which meshes with the driving gear 171; and

[0105] The secondary driven gear 173 meshes with the primary driven gear 172;

[0106] The side-sweeping roller brush 174 is mechanically coupled to the secondary driven gear 173. Figure 16 In the illustrated embodiment, the drive gear 171 is coaxially connected to the front cleaning head 12 and / or the rear cleaning head 13 via spline 175.

[0107] exist Figures 19 to 21 In the illustrated embodiment, the corner cleaning cleaner 1 also includes

[0108] Side sweeping mechanism 18, which is mechanically coupled to one end of the front cleaning head 12 and / or the rear cleaning head 13;

[0109] The cleaning chamber 111 and / or the mopping chamber 114 are provided with a side sweeping chamber 1113 for accommodating the side sweeping mechanism 18. The side sweeping chamber 1113 is open at least at its bottom to expose at least part of the side sweeping mechanism 18 toward the surface to be cleaned.

[0110] Furthermore, the side sweeping mechanism 18 includes a side sweeping roller brush 182 and a side sweeping transmission assembly. The side sweeping roller brush 182 is mechanically coupled to the front cleaning head 12 and / or the rear cleaning head 13 through the side sweeping transmission assembly. The side sweeping roller brush 182 and the front cleaning head 12 and / or the rear cleaning head 13 are configured for eccentric or coaxial transmission.

[0111] To shorten the length, Figures 19 to 21 The illustrated embodiment shows only the application scenario where the side sweeping mechanism 18 is mechanically coupled to the front cleaning head 12. Although not shown here, those skilled in the art should understand that the side sweeping mechanism 18 is also applicable to the case where it is coupled to the rear cleaning head 13.

[0112] Specifically, the side sweep transmission assembly includes:

[0113] With key 181, the side sweeping roller brush 182 is coaxially connected to the front cleaning head 12 via key 181.

[0114] The foregoing has provided a detailed description of a corner cleaning device according to the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of the present invention. 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. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A corner cleaning device (1), characterized in that, include: The base (11) is provided with a cleaning chamber (111), a dry waste collection chamber (112), a wet waste collection chamber (113) and a mopping chamber (114) in sequence from front to back. A front cleaning head (12) is laterally rotatably connected to the cleaning chamber (111); A rear cleaning head (13) is laterally rotatably connected to the mopping chamber (114); Side-sweeping mechanisms (17, 18) are mechanically coupled to one end of the front cleaning head (12) and / or the rear cleaning head (13); A driver, wherein the driver is disposed in the base (11); as well as A transmission component mechanically couples the front cleaning head (12) and the rear cleaning head (13) to the driver for synchronously transmitting mechanical energy from the driver to the front cleaning head (12) and the rear cleaning head (13). The cleaning chamber (111) and / or mopping chamber (114) are provided with a side sweeping chamber (1113) for accommodating the side sweeping mechanism (17, 18), and the side sweeping chamber (1113) is open at least at its bottom to expose at least part of the side sweeping mechanism (17, 18) toward the surface to be cleaned; The front cleaning head (12) includes: A cylindrical front roller (125) is laterally rotatably connected to the cleaning chamber (111); and At least three radially arranged brush blades (121) on the circumferential direction of the front roller, the brush blades (121) extending spirally around the axis (X1) of the front roller; Also includes: A dust-throwing channel (1224) connects the cleaning chamber (111) and the dry waste collection chamber (112) to each other. Each of the roller brush blades (121) includes a plurality of bristles extending radially outward; the combing member (123) is located on the rotation path of the roller brush blades (121) so that the bristles of the roller brush blades (121) are combed by the combing member (123) during the periodic rotation of the front roller (125). The combing component (123) includes: Guide portion (1231), said guide portion (1231) being located upstream of the rotation direction of the roller brush blade (121); and The comb teeth (1233) are integrally formed on the guide (1231) downstream of the rotation direction of the roller brush blade (121); The comb portion (1233) includes a plurality of comb teeth (1234) arranged axially spaced along the front roller (125); each comb tooth (1234) extends from the guide portion (1231) toward the front roller (125) such that each comb tooth (1234) at least partially penetrates the rotation path of the roller brush blade (121); The side of the guide portion (1231) opposite to the roller brush blade (121) is a guide surface (1231a) with a circular arc cross section. The radial outer end face of the roller brush blade (121) is adapted to the guide surface (1231a) during rotation. A rear baffle (132) is arranged around the outer periphery of the rear cleaning head (13); a cleaning channel is formed between the rear baffle (132) and the rear cleaning head (13); an extrusion assembly (14) is arranged in the cleaning channel. The extrusion assembly (14) has a dewatering channel (143), which has the following characteristics: The water inlet (1412) faces the rotation direction R of the rear cleaning head (13); and The water outlet (1411) is opposite to the rotation direction R of the rear cleaning head (13); Wherein, at least one section of the water squeezing channel (143) has a cross-sectional area that gradually decreases in the rotation direction R of the rear cleaning head (13), so that the cross-sectional area of ​​the water outlet (1411) is smaller than the cross-sectional area of ​​the water collection port (1412). At least one flow-limiting part (142) is arranged in the water squeezing channel (143), and the flow-limiting part (142) is located between the water collection port (1412) and the water outlet (1411). The flow-limiting part (142) is spaced apart from the side wall (141) of the water squeezing channel (143) and is close to the water outlet (1411) so that the water flow in the water squeezing channel (143) is divided into at least two streams by the flow-limiting part (142) and then flows into the water outlet (1411).

2. The corner cleaning device (1) as described in claim 1, characterized in that, The side sweeping mechanism (17, 18) includes a side sweeping roller brush (174, 182) and a side sweeping transmission assembly. The side sweeping roller brush (174, 182) is mechanically coupled to the front cleaning head (12) and / or the rear cleaning head (13) through the side sweeping transmission assembly. The side sweeping roller brush (174, 182) is eccentrically or coaxially driven with the front cleaning head (12) and / or the rear cleaning head (13).

3. The corner cleaning device (1) as described in claim 2, characterized in that, The side sweep drive assembly includes: A drive gear (171) is coaxially connected to the front cleaning head (12) and / or the rear cleaning head (13); A primary driven gear (172) meshes with the driving gear (171); and The secondary driven gear (173) meshes with the primary driven gear (172); The side sweeping roller brush (174) is mechanically coupled to the secondary driven gear (173).

4. The corner cleaning device (1) as described in claim 2, characterized in that, The side sweep drive assembly includes: The side brush (182) is coaxially connected to the front cleaning head (12) and / or the rear cleaning head (13) via the key (181).

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