WO2022218411A1

WO2022218411A1 - Ground cleaning apparatus having front dust collection function

Info

Publication number: WO2022218411A1
Application number: PCT/CN2022/087085
Authority: WO
Inventors: 王晓松; 秦琳玲
Original assignee: 苏州宝家丽智能科技有限公司
Priority date: 2021-04-16
Filing date: 2022-04-15
Publication date: 2022-10-20
Also published as: EP4324375A1; CN115211761A; CN218552223U

Abstract

A ground cleaning apparatus having a front dust collection function, the apparatus comprising a cleaning device, a water storage device and a dust collection device. The cleaning device comprises a rolling brush (1), a washing assembly (2) and a water retaining housing (3), the rolling brush (1) and the washing assembly (2) are both mounted in the water retaining housing (3), the rolling brush (1) is a rotatable water-absorbing rolling brush, the washing assembly (2) is arranged on one side of the rolling brush (1), the washing assembly (2) comprises a conveying rod housing (22) and a threaded conveying rod (21) rotatably mounted in the conveying rod housing (22), the conveying rod housing (22) is provided with a dirt outlet (221) in the rotary conveying direction of the threaded conveying rod (21), the conveying rod housing (22) is provided with an opening (222), the water retaining housing (3) is arranged in a sealing fit with the conveying rod housing (22), and the water retaining housing (3) and the conveying rod housing (22) can prevent water and dirt from spilling out; the water storage device is provided with a dirty water tank (71); and the dust collection device is provided with a dust suction port (81), the dust suction port (81) is arranged on a front side of the rolling brush (1), and the dust collection device sucks dirt on the ground by means of the dust suction port (81). Dry suction is performed first, and wet mopping is then performed, such that the service life of the cleaning device is prolonged, and the cleaning effect is better. An access port of a dust collection cover can be flexibly adapted to the dust collection device.

Description

A kind of ground cleaning equipment before vacuuming

technical field

The utility model relates to the field of ground cleaning, in particular to a ground cleaning device with a dust suction front.

Background technique

At present, the wet and dry floor cleaning equipment on the market almost all use wet mopping and then dry suction, that is, vacuuming and then placing, but this sometimes brings trouble, that is, if large particles of hard dirt are encountered, large particles of dirt will hinder Wet mopping, or large particles are brought into the wet mopping device and stuck in the wet mopping device, which makes the equipment unable to work or even damages the equipment.

In addition, there are almost no cleaning settings on the market that can achieve the cleaning effects of "dry", "clean" and "self-cleaning" at the same time, and the "dry" refers to the water left by the roller brush after pressing roller treatment Less stains; the "clean" means that the dirt on the ground can be transported and cleaned by the threaded conveying rod, and the sweeping and mopping are integrated; the "self-cleaning" means that the roller brush can be transported through clean water The self-cleaning process is realized by squeezing with pressure rollers.

In addition, after the commonly used hanging strips are scraped, the surfaces of the roller brushes are pressed together, which greatly reduces the ability of the roller brush to absorb sewage and dirt. Creates additional water spots.

Therefore, combined with the above-mentioned technical problems, it is necessary to provide a new technical solution.

Utility model content

In order to solve the technical problems existing in the prior art, the utility model provides a kind of mop with first dry suction and then wet mop, flexible configuration, simple structure, convenient use, and simultaneous realization of "dry", "clean" and "self-cleaning" functions. Cleaning equipment, the specific technical solutions are as follows:

A pre-cleaning ground cleaning device, comprising a cleaning device, a water storage device and a vacuuming device;

The cleaning device includes a roller brush, a brush assembly and a water-blocking casing, the roller brush and the brush assembly are all installed in the water-blocking casing, the roller brush is a rotatable water-absorbing roller brush, and the scrubbing assembly is arranged on the On one side of the roller brush, the scrubbing assembly includes a conveying rod housing and a threaded conveying rod rotatably installed in the conveying rod housing. The conveying rod housing is provided with a sewage outlet in the rotational conveying direction of the screw conveying rod. An opening is provided in the direction of the rolling brush, the water blocking casing and the conveying rod casing are arranged in sealing cooperation, and the water blocking casing and the conveying rod casing can prevent the overflow of water and dirt;

The water storage device has a sewage tank, and the sewage outlet is connected to the sewage tank through a sewage pipe;

The dust suction device has a dust suction port, the dust suction port is arranged on the front side of the roller brush, and the dust suction device sucks the dirt on the ground through the dust suction port.

Further, the dust suction device further has a dust suction hood, and the dust suction hood is provided with a dust suction channel and an access port, and the dust suction port and the access port communicate with each other through the dust suction channel;

The suction port is configured to be collapsible, collapsible or detachable.

Further, the vacuuming device further includes a vacuuming rod;

The dust-collecting rod is detachably installed on the access port, and a dust-collecting cup and a dust-collecting pump are arranged on the dust-collecting rod. The suction port sucks the dirt into the dust cup;

The detachable cover of the dust collecting hood is arranged above the cleaning device and the water storage device.

Further, the cleaning device further includes at least one pressing roller and at least one first brush assembly;

The pressing roller is pressed on the roller brush, the pressing roller is located above the washing brush assembly, and the pressing roller is rotatably installed in the water-blocking housing;

the first brush assembly is interposed between the pressing roller and the threaded conveying rod, the first brush assembly is in contact with the roller brush, and the first brush assembly can scrape off the dirt on the roller brush;

The tightness of the contact between the threaded conveying rod and the rolling brush can be adjusted.

Further, the conveying rod housing is provided with a plurality of first protrusions at the upper edge of the opening, and the plurality of first protrusions are first brush components, and the first protrusions face the roller brush and are connected with the brush contact; and/or

The first brush assembly is a brush, the brush is rotatably installed in the water-blocking housing, the surface of the brush is provided with a plurality of second protrusions, and the second protrusions are in contact with the rolling brush ;

The tightness of the contact between the pressing roller and the rolling brush can be adjusted.

Further, the cleaning device includes at least one second brush assembly;

The second brush assembly is located on the side of the pressing roller away from the first brush assembly, the second brush assembly is rotatably installed in the water-blocking housing, and the second brush assembly is provided on the surface a rod-shaped member having a plurality of tops, the tops being in contact with the roller brush;

The surface of the roller brush is provided with a flannel water-absorbing layer, the wool strips can fluff the fleece water-absorbing layer, and the second brush assembly is a rotating second brush assembly or a non-rotating second brush assembly.

Further, the water storage device further includes a clean water tank, the clean water tank is disposed on the side of the scrubbing assembly away from the roller brush, and the clean water tank is connected to the water inlet through a clean water pipe.

Further, the water storage device further includes a water pump, a water pump is arranged between the water purification tank and the cleaning device, and the water pump can pump the clean water in the water purification tank to the cleaning device.

Further, the inner wall of the water retaining shell is provided with at least one water replenishment port, the water replenishment port faces the roller brush, and the water replenishment port is connected to the water purification tank through a clean water pipe; and/or

The conveying rod housing is provided with a water inlet, the water inlet is arranged at one end of the conveying rod housing away from the sewage outlet, and the water inlet is connected to the clean water tank through a clean water pipe; and/or

The pressing roller is sleeved with a pressing roller shell, the surface of the pressing roller has a spiral groove, and the pressing roller shell is provided with a water inlet of the pressing roller shell, a water replenishing port of the pressing roller shell and a water outlet of the pressing roller shell. The water inlet of the pressure roll shell is located at one end of the pressure roll shell, the water outlet of the pressure roll shell is located at the other end of the pressure roll shell, and the water outlet of the pressure roll shell is opened at the bottom of the pressure roll shell. The water supply port of the roller shell faces the roller brush, and the water inlet port of the pressure roller shell is connected to the clean water tank through a clean water pipe; and/or

The brush has a hollow cavity, a plurality of water sprinkling openings and at least one brush water opening, both the water sprinkling opening and the brush water opening are communicated with the hollow cavity, and a plurality of the water sprinkling openings are arranged on the brush. The brush nozzle is arranged at one end of the brush, and the brush nozzle is connected to the clean water tank through a clean water pipe.

Further, it also includes a brush casing, the brush casing is accommodated in the water blocking casing, the brush is rotatably installed in the brush casing, and the second protrusion on the brush is in the shape of a second protrusion. spirally arranged on the brush, the brush shell has a water inlet, a water replenishment port and a water outlet of the brush shell, the water inlet is arranged at one end of the brush shell, and the water replenishment port of the brush shell opens towards the roller brush, The water inlet is connected to the clean water tank through a clean water pipe.

Further, the top of the conveying rod shell is provided with a hollow structure at a position close to the opening; and/or,

A gap is set between the upper edge of the opening and the rolling brush;

The threaded conveying rod is detachably installed in the conveying rod housing.

Further, a driving device is also included, and the driving device can drive the rolling brush to rotate;

A plurality of tufts are arranged on the threaded conveying rod.

Further, a power storage component is also included, and the power storage component is electrically connected with the driving device.

Further, the threaded delivery rod is a shaftless threaded delivery rod;

An inclined plate extends outward from the lower edge of the opening, and the inclined plate extends toward the bottom of the rolling brush.

Compared with the prior art, the technical solution of the ground cleaning equipment in front of vacuuming described in this patent has at least one or more of the following beneficial effects:

The dust suction port of this equipment is set in front of the cleaning device, first dry suction and then wet mop, first suction the particulate dirt on the ground, the cleaning device only needs to clean the sewage and a small amount of dirt, reduce the damage of the large particle dirt to the cleaning device, prolong the The cleaning device has a long service life, and the dry and wet are separated for cleaning, and the cleaning effect is better.

In this equipment, the access port of the vacuum hood can be flexibly configured with a vacuum device, not only the vacuum rod of this patent, but also the ordinary vacuum cleaner on the market, which is convenient for users to regenerate and use old things, and has strong versatility.

This patent can achieve "dry", "clean" and "self-cleaning" at the same time; the "dry" means that the roller brush after the pressing roller treatment leaves less water stains; the "clean" means The most important thing is that the dirt on the ground can be transported and cleaned by the threaded conveying rod, and the sweeping and mopping are integrated; the "self-cleaning" means that the roller brush can be realized by the roller brush of this patent for replenishing water and pressing the roller. In the self-cleaning process, this patent provides a variety of water replenishment methods, which help to achieve self-cleaning, more ergonomic design, greatly improve user experience, and overcome the shortcomings of existing products.

The first brush assembly is added, and the convex objects such as the first protrusion or the second protrusion on the first brush assembly form point-to-surface contact with the roller brush, which is opposite to the surface formed by the wiper strip or the pressure rod and the roller brush. Contact, the soft dirt such as hair, noodles and so on adhering to the roller brush cannot be removed by the surface-to-surface contact force of the wiper strip or the pressure lever, and may even be pressed and attached to the roller brush more firmly, resulting in the formation of The first brush assembly with point-to-surface contact, the first protrusion or the second protrusion on the first protrusion or the second protrusion can hook off the adhering soft dirt on the roller brush, so that the first brush assembly can be more effective and thorough It can effectively remove the dirt on the roller brush, effectively improve the removal effect of the dirt on the roller brush, and the continuous cleaning of the surface of the roller brush helps to improve the ground cleaning effect. Of course, the first brush assembly can not only remove soft dirt, but also remove particulate dirt more easily.

Add a brush to prevent the pressure roller and the roller brush from extruding and rotating at a high speed, and water accumulation will be formed under the pressure roller, which can play a guiding role. The dirt is thrown into the housing of the conveying rod, and the dirt on the rolling surface can be removed.

After the roller brush is squeezed by the pressure bar or the wiper strip to scrape off the sewage and dirt, the flannel absorbent layer on the surface of the roller brush is attached to the roller, and the pressed flannel absorbent layer continues to rotate forward, and when it contacts the ground again, Because the absorbent layers of the flannel are attached together, the ability of the roller brush to absorb sewage and dirt will be significantly deteriorated. Therefore, after the roller brush is squeezed by the pressure rod, the surface of the roller brush is provided with a second brush assembly in contact with the roller brush. The fur strips on the brush assembly scrape the flannel absorbent layer, making the pressed flannel absorbent layer fluffy, and the fluffy flannel absorbent layer can well absorb the sewage and dirt on the ground. Therefore, the first brush assembly and the second Both brush assemblies help the roller brush greatly improve its cleaning power.

There are various options for the self-cleaning water replenishment method of the roller brush, which are flexible and diverse, including one or more of the water retaining shell replenishment, the conveying rod shell replenishment, the brush replenishment, the brush shell replenishment, and the pressure roller replenishment. combination, so that the accessories of this equipment can be flexibly configured.

The screw conveying rod is set, and the screw conveying rod and the roller brush are rotated and squeezed relative to each other, so that the resistance of the roller brush is reduced, the driving power of the roller brush can be saved, and the surface of the roller brush and the screw conveying rod is not damaged by the rotating extrusion, and the service life of the product is prolonged. The threaded conveying rod transports the sewage and dirt extruded by the roller brush along the thread groove from one end of the thread conveying rod to the sewage outlet at the other end, which is beneficial to the self-cleaning of the roller brush, and the sewage outlet and the water inlet can preferably be arranged in the thread conveying port. Both ends of the rod save space, which is conducive to the miniaturization or diversified design of products; the surface of the threaded conveyor rod is concave and convex, and when the threaded conveyor rod presses the roller brush and rotates, the concave and convex surface of the threaded conveyor rod rubs, beats and squeezes The roller brush can make the cleaning and drying effect of the surface of the roller brush better; the threaded conveying rod squeezes the roller brush, which can squeeze out the sewage and dirt on the roller brush, so that the roller brush is in a semi-wet, slightly wet or slightly dry state , a drier roller brush is beneficial to its cleaning and decontamination ability.

Set the pressure roller to squeeze the roller brush to remove the sewage. The pressure roller squeezes the roller brush and rotates in the opposite direction with the roller brush to form a rotating extrusion of two cylinders. The driving power loss of the roller brush is small, which can reduce the friction of the roller brush. The requirements of driving power, and the rotation and extrusion are not easy to damage the surface of the roller brush and the pressure roller, which helps to prolong the service life of the product; the pressure roller further squeezes the roller brush, so that the roller brush is squeezed to slightly wet, slightly dry, or even half Dry state, and can block large particles of dirt, more effectively improve the work efficiency and cleaning effect of the roller brush; set the adjustable pressure roller and the roller brush to adjust the tightness of the extrusion according to the actual use to achieve the best cleaning effect .

The ground cleaning equipment in front of vacuuming described in this patent has a simple and compact structure, which is beneficial to simplify the product structure, reduce the cost, reduce the weight and volume of the equipment, and is more convenient for users to take and use.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some of the present invention. In the embodiment, for those skilled in the art, other drawings can also be obtained according to these drawings without creative effort.

Fig. 1 is the three-dimensional structure schematic diagram of the ground cleaning equipment in front of vacuuming according to the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of the cleaning device, the water storage device and the dust hood according to the present invention;

Fig. 3 is the three-dimensional structure schematic diagram of the cleaning device, the water storage device and the dust hood according to the present invention;

Fig. 4 is the exploded structure schematic diagram of the cleaning device described in the present utility model;

Fig. 5 is the explosion structure schematic diagram of the cleaning device described in the present utility model;

Fig. 6 is the three-dimensional structure schematic diagram of the cleaning device of the present invention;

Fig. 7 is the partial structure schematic diagram of the cleaning device of the present invention;

8 is a schematic three-dimensional structural diagram of the roller brush, the second brush assembly, the pressing roller, the brush and the housing of the conveying rod in the cleaning device according to the present invention;

FIG. 9 is a three-dimensional schematic diagram of the scrubbing assembly according to the present invention;

10 is a schematic diagram of an explosion structure of the scrubbing assembly of the present invention;

Figure 11 is a schematic three-dimensional structure diagram of another embodiment of the threaded delivery rod of the present invention;

Figure 12 is a three-dimensional schematic diagram of the shaftless threaded delivery rod of the present invention;

Fig. 13 is a three-dimensional schematic diagram of an embodiment of the brush according to the present invention;

FIG. 14 is a schematic three-dimensional structure diagram of an embodiment of the brush and the brush housing according to the present invention;

Figure 15 is a schematic three-dimensional structure diagram of another embodiment of the brush of the present invention;

FIG. 16 is a three-dimensional schematic diagram of an embodiment of the pressing roller, the pressing roller housing, the brush and the scrubbing assembly according to the present invention;

FIG. 17 is a schematic three-dimensional structure diagram of the pressing roller shell in FIG. 16 .

Among them, 10-cleaning device, 1-rolling brush, 2-sewage tank, 3-water blocking shell, 4-pressing roller, 6-driving device, 8-dust hood, 9-dusting rod, 11-flannel absorbent layer , 12-roller, 21-threaded delivery rod, 22-delivery rod housing, 211-threaded groove, 212-threaded protrusion, 213-hairpin, 214-spindle, 215-shaftless threaded delivery rod, 221-sewage Port, 222-opening, 2221-first protrusion, 2222-inclined plate, 223-water inlet, 41-pressing roller shell, 411-pressing roller shell water inlet, 412-pressing roller shell water supply port, 413-pressing roller shell Drain outlet, 43-compression spring, 51-brush, 511-second protrusion, 512-sprinkler outlet, 513-brush nozzle, 52-second brush assembly, 53-brush housing, 531-water inlet, 532-Brush shell water supply port, 61-Power storage assembly, 62-Cover, 71-Sewage tank, 72-Clean water tank, 73-Water pump, 81-Dust suction port, 82-Dust suction channel, 83-Access port , 84 - roller, 91 - dust cup, 92 - vacuum pump, 93 - handle.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present invention, but should not be construed as a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood and explained that the terms "upper", "lower", "top", "bottom", "inner", "outer", "front end", "rear end", "two The orientation or positional relationship indicated by "end", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated A device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "provided with", "provided with", "connected", "installed with", "sleeved", "opened", "fixed", etc. The terms should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be The communication within two elements or the interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Example

Please refer to FIG. 1-17 , as shown in FIG. 1-17 , a ground cleaning device with a pre-cleaning vacuum provided by an embodiment of the present invention includes a cleaning device, a water storage device and a dust suction device;

The cleaning device includes a roller brush 1, a scrubbing assembly 2, a water blocking shell 3, a pressing roller 4, a first brush assembly, a second brush assembly 52 and a driving device 6, and the roller brush 1 and the scrubbing assembly 2 are installed In the water blocking housing 3, the roller brush 1 is a rotatable water-absorbing roller brush, the scrubbing assembly 2 is arranged on one side of the roller brush 1, and the scrubbing assembly 2 includes a conveying rod housing 22 and a rotatable installation. The threaded conveying rod 21 in the conveying rod housing 22, the conveying rod housing 22 is provided with a sewage outlet 221 in the rotation and conveying direction of the threaded conveying rod 21, and the conveying rod housing 22 is provided with an opening 222 in the direction of the roller brush 1. The water-blocking housing 3 is provided in sealing cooperation with the conveying rod housing 22, and the water-blocking housing 3 and the conveying rod housing 22 are sealed and matched to prevent the overflow of water and dirt;

The water storage device has a sewage tank 71 and a clean water tank 72. Both the sewage tank 71 and the clean water tank 72 are arranged on the side of the scrubbing assembly 2 away from the roller brush 1. The sewage outlet 221 is connected to the sewage pipe through a sewage pipe. The sewage tank 71 is connected, the clean water tank 72 is connected to the cleaning device through a clean water pipe, the clean water delivered by the water clean tank 72 can clean the roller brush 1, and a water pump 73 is arranged between the water clean tank 72 and the cleaning device, The water pump 73 can pump the clean water in the clean water tank 72 into the cleaning device. Of course, a sewage pump can also be provided, and the sewage pump can pump the sewage into the sewage tank 71 through the sewage outlet 221 .

The dust suction device has a dust suction hood 8 and a dust suction rod 9. The dust suction hood 8 is provided with a dust suction port 81, a dust suction channel 82 and an access port 83, and the dust suction port 81 is provided on the roller brush. 1, the vacuum device sucks the dirt on the ground through the vacuum port 81, the vacuum port 81 has the function of foldable, retractable or detachable, and the suction port can be put away when encountering sewage, Avoid sewage entering the suction port and damaging the suction device. The dust suction port 81 and the access port 83 are communicated through the dust suction channel 82, the access port 83 is arranged above the dust suction hood, and the dust suction hood 8 is detachably provided on the cleaning device and the water storage device. above;

The suction rod 9 is detachably installed on the inlet 83, and the suction rod 9 is provided with a dust collecting cup 91, a suction pump 92 and a handle 93, and the dust collecting cup 91 passes through the dust collecting duct and the inlet port. 83 is connected, the vacuum pump 92 can suck the dirt into the dust collecting cup 91 through the vacuum port 81 , and the handle 93 is disposed at one end away from the vacuum rod 9 away from the vacuum port 81 .

The floor cleaning device further includes rollers 84 , the rollers 84 are respectively installed on both sides of the water storage device or the dust hood 8 , and the roller 84 is away from one end of the dust suction port 81 .

Please refer to Fig. 4-17. As shown in Fig. 4-17, the cleaning device includes a roller brush 1, a washing brush assembly 2, a water blocking shell 3, a pressing roller 4, a first brush assembly and a second brush assembly 52;

The rolling brush 1 is a water-absorbing rolling brush, and the rolling brush 1 is rotatably mounted on the inner walls of the two sides of the water blocking shell 3;

The roller brush 1 is a water-absorbing roller brush, and the roller brush usually includes two methods, one is a water-absorbing cotton roller brush, or a water-absorbing rubber cotton roller brush, such as polyvinyl alcohol rubber cotton. In the example, the roller brush 1 includes a roller 12 and a flexible cleaning layer, the flexible cleaning layer is detachably sleeved on the roller 11, and the flexible cleaning layer is a flannel water-absorbing layer 11 or a water-absorbing rubber layer, of course The flexible cleaning layer can also be other absorbent materials. The roller brushes or mops in the prior art are all cleaned manually. Even though some products claim to have self-cleaning function, the actual effect is very poor.

The scrubbing assembly 2 is arranged on one side of the roller brush 1. As shown in FIG. 8 , the scrubbing assembly 2 is rotatably mounted on the inner walls of both sides of the water blocking shell 3, and the scrubbing assembly 2 includes a threaded conveying rod 21. and the conveying rod housing 22, as shown in Figures 9-10, the threaded conveying rod 21 is disposed close to or in contact with the roller brush 1, the conveying rod housing 22 is provided with a semi-closed cavity, and the threaded conveying rod 21 It can be rotatably installed in the semi-closed cavity of the conveying rod housing 22. The threaded conveying rod 21 is arranged close to or attached to the inner wall of the conveying rod housing 22. The conveying rod housing 22 is rotated and conveyed on the screw conveying rod 21. A sewage outlet 221 is provided in the direction, an opening 222 is formed on the conveying rod casing 22 toward the direction of the roller brush 1, and at least one threaded groove 211 is provided on the threaded conveying rod 21, and the threaded conveying rod 21 One end is transported to the other end. In an example, the threaded delivery rod 21 is detachably installed in the delivery rod housing 22, the threaded delivery rod 21 and the delivery rod housing 22 are coaxially arranged, and the central axis of the scrubbing assembly 2 is in the same direction as the The direction of the central axis of the roller brush 1 is the same, and the outer diameter of the roller brush 1 is larger than the outer diameter of the threaded conveying rod 21 .

The utility model cleans the ground by mopping and wiping the ground in a wet state with the roller brush, and then continuously replaces the sewage and clean water on the rotating roller brush with the threaded conveying rod 21, and drains the sewage and dirt through the semi-closed cavity to the ground. To the sewage tank or other designated positions, and at the same time realize the self-cleaning function of the roller brush, the above structure is very simple and compact, which is conducive to simplifying the product structure and reducing costs.

The threaded delivery rod 21 is a long strip with a threaded groove 211 on the surface. The threaded delivery rod 21 includes a main shaft 214 and a threaded protrusion 212. The threaded protrusion 212 is spirally wound from one end of the main shaft 214. To the other end, a threaded groove 211 is formed between the threaded protrusions 212. The setting direction of the threaded groove can be adaptively adjusted according to the rotation direction and transmission direction of the threaded conveying rod 21, and the main shaft 214 can also be adjusted. Multiple thread protrusions 212 are provided, that is, multiple thread protrusions 212 form multiple different thread grooves 211. Rotational resistance of brush 1.

The threaded conveyor rod is attached to or close to the rolling brush and rotates in the opposite direction with the rolling brush. The threaded conveyor rod and the rolling brush form two cylinders that rotate and squeeze relative to each other, so that the resistance applied to the rolling brush is small, so the power loss of the rolling brush is relatively small. Small, it can save the driving power of the roller brush, and does not damage the surface of the roller brush and the threaded conveying rod, so as to prolong the service life of the product.

The threaded conveying rod 21 is set close to or in contact with the rolling brush 1. In one embodiment, the threaded conveying rod 21 is set close to the rolling brush 1, and the sewage and dirt on the rolling brush falls through the opening 222 and falls into the conveyor. Inside the rod housing 22, the threaded conveying rod 21 conveys sewage from one end of the conveying rod housing 22 to the other end. In another embodiment, the threaded conveying rod 21 is arranged in contact with the roller brush 1. The threaded conveying rod 21 can not only convey sewage and dirt from one end of the conveying rod housing 22 to the other end, but also One end of the conveying rod housing 22 conveys clean water, which is rotated and conveyed through the threaded conveying rod 21, and the clean water is in contact with the surface of the roller brush 1 to clean the roller brush. The brushes form a pressure contact for better squeezing of water on the roller brushes and stripping of dirt from the roller brushes. Of course, the tightness of the contact between the threaded conveying rod 21 and the roller brush 1 can be adjusted by an adjusting member.

A threaded groove is formed on the threaded conveying rod, and the threaded conveying rod conveys the sewage and dirt extruded by the roller brush along the threaded groove from one end of the threaded conveying rod to the sewage outlet at the other end, so that the sewage outlet and the water inlet can be preferably set At both ends of the threaded delivery rod, it saves space and helps to miniaturize or diversify the design of the product. Of course, the sewage outlet and the water inlet can also be arranged in other parts. In addition, a spiral groove is formed on the screw conveying rod, so that the surface of the screw conveying rod is in a concave and convex shape. When the screw conveying rod presses the roller brush and rotates, the concave and convex surface of the screw conveying rod rubs, beats and squeezes the roller brush, and the surface of the roller brush Washes and dries better. The threaded conveying rod squeezes the roller brush, which can squeeze out the sewage and dirt on the roller brush, so that the roller brush is in a semi-wet, slightly wet or slightly dry state, which is more conducive to the self-cleaning and automatic drying of the roller brush.

Preferably, as shown in FIG. 11 , in another embodiment of the threaded conveying rod 21 , the threaded conveying rod 21 is provided with a plurality of tufts 213 , and the tufts 213 are arranged in the threaded groove 211 On the threaded protrusions 212 formed in and/or between the threaded grooves 211 , preferably, the bristles 213 are arranged on the threaded protrusions 212 . The bristles 213 can improve the friction between the threaded conveying rod 21 and the rolling brush 1 , preventing the threaded conveying rod from being unable to rotate together with the rolling brush 1 due to sliding.

In another embodiment, as shown in FIG. 12 , the threaded delivery rod 21 is a shaftless threaded delivery rod 215 .

The purposes of the threaded conveying rod 21 of the present invention are as follows:

The threaded conveying rod 21 is pressed or in contact with the rolling brush 1, and the degree of extrusion of the threaded conveying rod to the rolling brush is adjusted by the adjusting member. When the threaded conveying rod rotates, the unevenness of the threaded conveying rod The surface squeezes, rubs and taps the flexible cleaning layer on the surface of the roller brush to squeeze the sewage and dirt on the roller brush 1 and flow into the thread groove 21 of the threaded conveying rod 21. With the rotation of the thread conveying rod 21, the thread groove The sewage in the tank 21 is screwed from one end to the other end by the threaded conveying rod 21; on the other hand, clean water can also be conveyed from one end of the threaded conveying rod 21. When the threaded conveying rod 21 rotates and squeezes the roller brush, the purified water It is transported to the roller brush that is in contact with the threaded conveying rod, and the roller brush is cleaned by water displacement, and the sewage and particulate dirt on the roller brush are conveyed to the other end of the threaded conveying rod to realize the self-cleaning function of the roller brush.

One side of the water blocking casing 3 is covered to the side of the roller brush 1 away from the conveying rod casing 22 , the other side of the water blocking casing 3 extends to the conveying rod casing 22 , and the water blocking casing 3 is connected to the conveying rod casing 22 . The conveying rod housing 22 is provided in a sealed fit, and the water blocking housing 3 can block the overflow of water and dirt.

The pressing roller 4 is rotatably mounted on the inner walls of the two sides of the water blocking casing 3 , the pressing roller 4 is pressed on the rolling brush 1 , and the pressing roller 4 is located above the washing brush assembly 2 . Preferably, the outer diameter of the rolling brush 11 is larger than the outer diameter of the pressing roller 13 , and there may be multiple pressing rollers 4 .

A pressing roller 4 is provided, which further squeezes the roller brush 1, so that the roller brush 1 has a better squeezing effect, avoids or reduces the residual water stains on the ground after cleaning, and further blocks the particulate dirt adhering to the surface of the roller brush.

The pressing roller 4 is in pressure contact with the rolling brush 1 through an adjusting member, and the adjusting member can adjust the tightness of the contact between the pressing roller 4 and the rolling brush 1. The adjusting member is preferably an elastic mechanism with a certain elasticity. The elastic mechanism may be a compression spring or a spring with certain elasticity; of course, the regulating member may also be a regulating valve. In the example, the adjusting member for adjusting the pressure roller 4 and the roller brush 1 is a pressure spring 43 , both ends of the pressure roller 4 are installed in the installation holes of the water blocking shell 3 , and the pressure springs are arranged in the installation holes , the pressing spring 43 presses the pressing roller 4 on the rolling brush 1 . Preferably, the rolling direction of the pressing roller 4 and the rolling brush 1 is opposite to reduce the resistance when the rolling brush rotates.

When the pressure roller 4 is added, the conveying rod shell 22 is in a hollow structure near the opening 222, and/or a gap is set between the upper edge of the opening 222 and the roller brush 1, and the sewage extruded by the pressure roller 2 is polluted. The object enters the conveying rod housing 22 through the hollow structure or the gap.

As shown in FIGS. 9-10 , the conveying rod housing 22 is provided with a sewage discharge port 221 through the conveying direction along the rotation and conveying direction of the threaded conveying rod 21 . The dirt is discharged from the sewage outlet 221; the end of the conveying rod housing 22 away from the sewage outlet 221 is also provided with a water inlet 223, and the sewage outlet 221 is arranged at the end of the conveying rod housing 22 or the conveying rod housing 22 Also, the water inlet 223 can also be arranged on the end of the conveying rod housing 22 or on the side wall of the conveying rod housing 22 .

An opening 222 is provided on the side of the conveying rod housing 22 facing the roller brush 1 , and an inclined plate 2222 extends outward from the lower edge of the opening 222 , and the inclined plate 2222 extends toward the bottom of the roller brush 1 ; The ground is in contact with or close to the ground. Preferably, the inclined plate 2222 is in contact with the ground, and the inclined plate 2222 can scoop up sewage and dirt on the ground. There is a gap between the inclined plate 2222 and the roller brush 1, and the sewage and dirt can pass through. The gap enters the delivery rod housing 22 . In an example, the length of the inclined plate 2222 is the same as the length of the opening.

Preferably, the length direction of the opening 222 is consistent with the length direction of the conveying rod housing 22 , and the length of the opening 222 is not less than the length of the roller brush 1 . Of course, the length of the opening 222 is smaller than the length of the roller brush 11 can also be implemented as a non-preferred design solution. In an example, the length of the opening 222 is the same as the length of the roller brush 1 .

The working principle of the pressing roller 13 of the present invention:

The pressing roller 4 is pressed on the rolling brush 1, and the pressing degree of the rolling brush 1 by the pressing roller 4 is adjusted by the adjusting member, and the pressing roller 4 squeezes the rolling brush 1 again for decontamination, The sewage and dirt on the roller brush 1 are extruded, and the extruded sewage and dirt flow into the thread groove 21 of the threaded conveying rod 21 along the surface of the roller brush 1 .

The cleaning device is provided with at least one first brush assembly, the first brush assembly is between the pressing roller 4 and the threaded conveying rod 21 , and the first brush assembly can scrape off the dirt on the roller brush 1 . There are two embodiments of the first brush assembly. In one embodiment, the conveying rod housing 22 is provided with a plurality of first protrusions 2221 at the upper edge of the opening 222, and the plurality of first protrusions 2221 are the first protrusions 2221. In a brush assembly, the first protrusion 2221 faces the roller brush and is in contact with the roller brush, and the first protrusion 2221 can scrape off the dirt on the roller brush 1 . In one embodiment, the first brush component is a brush 51. As shown in FIG. 13, the brush 51 is rotatably installed in the water blocking housing 3, and the surface of the brush 51 is provided with a plurality of second protrusions. The second protrusion 511 is in contact with the rolling brush 1 , and the second protrusion 511 can scrape off the dirt on the rolling brush 1 . Of course, these two first brush assemblies can also be provided at the same time. Setting the first brush assembly can brush off particles or flexible particles on the roller brush, and when the pressure roller and the roller brush rotate at a relatively high speed, a large amount of accumulated water is generated under the pressure roller, and the first brush assembly is arranged under the pressure roller. The brush can drain into the housing of the conveying rod to prevent splashing of accumulated water, and the first brush assembly can also function as an absorbent layer of fluffy flannel.

The cleaning device further includes a second brush assembly 52; the second brush assembly 52 is located on the side of the pressing roller 4 away from the first brush assembly, and the second brush assembly 52 is rotatably installed on the In the water blocking housing 3, the second brush assembly 52 is a rod-shaped member with a plurality of fur strips on the surface, the top strips are in contact with the roller brush 1; the surface of the roller brush 1 is provided with a fleece absorbent layer 11 , the wool strips can fluff the fleece absorbent layer 11 ; the second brush assembly 52 is a rotating second brush assembly or a non-rotating second brush assembly.

The cleaning device also has a self-cleaning function, and the roller brush supplies water to the roller brush while cleaning sewage and dirt, so as to realize the self-cleaning function of the roller brush and help the ground to be cleaned better and cleaner. The water replenishment method of the roller brush includes at least one or more of the following:

In one embodiment, the conveying rod housing 22 is provided with a water inlet 223. As shown in FIGS. 9-10, the water inlet 223 is provided at one end of the conveying rod housing 22 away from the sewage outlet 221, and the water inlet 223 passes through a clean water pipe. Connected to the clean water tank 72 , the sewage and dirt are rotatably conveyed from one end of the water inlet 223 of the conveying rod housing 22 to one end of the sewage outlet 221 through the threaded conveying rod 21 .

In one embodiment, the inner wall of the water blocking shell 3 is provided with at least one water replenishment port, the water replenishment port faces the roller brush 1, and the water replenishment port is connected to the water purification tank 72 through a clean water pipe. between the scrubbing unit 2 and the pressing roller.

In one embodiment, the brush 51 is provided with a brush housing 53 , as shown in FIG. 14 , the brush housing 53 is accommodated in the water blocking housing 3 , and the second protrusion on the brush 51 is The lift 511 is spirally arranged on the brush 51, and the brush 51 is rotatably installed in the brush housing 53;

The brush housing 53 has a water inlet 531 and a brush housing water supply opening 532. The water inlet 531 is provided at one end of the brush housing 53. The brush housing water supply opening 532 opens towards the roller brush 1. The water inlet 531 is connected to the clean water tank 72 through a clean water pipe.

In one embodiment, the pressing roller 4 is sleeved with a pressing roller shell 41. As shown in Figures 16-17, the surface of the pressing roller 4 is provided with a spiral groove, and the spiral groove follows the rotation of the pressing roller 4. The water can be transported from one end to the other end. The pressure roller shell 41 is provided with a pressure roller shell water inlet 411, a pressure roller shell water supply port 412 and a pressure roller shell water outlet 413, and the pressure roller shell water inlet 411 is located at the place. One end of the pressure roller housing 41, the pressure roller housing water outlet 413 is located at the other end of the pressure roller housing 41, the pressure roller housing water outlet 413 is opened at the bottom of the pressure roller housing 41, the pressure roller housing The water supply port 412 faces the roller brush 1, and the water inlet 411 of the pressing roller shell is connected to the clean water tank 72 through a clean water pipe.

In one embodiment, as shown in FIG. 15 , the brush 51 has a hollow cavity, at least one water sprinkling port 512 and at least one brush water opening 513, and both the water sprinkling opening 512 and the brush water opening 513 communicate with the hollow cavity. , the length direction of the hollow cavity is consistent with the length direction of the brush 51, the water spout 512 is arranged on the brush 51, the brush nozzle 513 is arranged at one end of the brush 51, and the brush nozzle 513 is connected to the brush 51 through a clean water pipe. The clean water tank 72 is connected.

The water replenishment method of the roller brush can be any one of the above, or a free combination of any two or more of the above.

In yet another embodiment, a driving device 6 is further included; the driving device 6 can drive the rolling brush 1 to rotate;

In one embodiment, the driving device 6 can be connected with the rolling brush 1. As shown in Figures 4-5 and 7, the driving device 6 drives the rolling brush 1 to rotate, and drives the threaded conveying rod through the rotation of the rolling brush. 21 rotates in the opposite direction, so that the threaded conveying rod 21 forms the function of conveying water and dirt. Of course, the driving device 6 can also be arranged inside the roller 12 of the roller brush 1 .

In one embodiment, the roller brush 1 is connected with one driving device, the screw conveying rod 21 is connected with another driving device, and both the rolling brush and the screw conveying rod 21 are driven by the respective driving devices to rotate.

In one embodiment, the roller brush 1 does not have a direct drive device, and the drive device is directly connected with the threaded conveying rod 21 , and the roller brush 1 is driven to rotate in the opposite direction by the rotation of the threaded conveying rod 21 .

In one embodiment, neither the roller brush 1 nor the threaded delivery rod 21 has a driving device. When the user pushes the cleaning device forward, the roller brush is driven to rotate, and the rotation of the roller brush drives the threaded delivery rod 21 to rotate in the opposite direction, so that the thread The conveying rod 21 forms the function of conveying water and dirt.

In the case of the above four driving device embodiments, when a pressing roller is provided, and/or another driving device is further included, the driving device can be connected with the pressing roller 4, and the driving device drives the pressing roller 4. Roller 4 rotates.

In the example, an electricity storage component 61 is further included, and the electricity storage component 61 is electrically connected with the driving device 6 .

In the example, a cover 62 is also included; the driving device and the power storage assembly are both disposed on the water blocking casing 3, and the length direction of the driving device and the power storage assembly is consistent with the length direction of the roller brush, and the cover The casing 62 is covered on the driving device 6 and the power storage assembly 61 , and the casing is tightly fitted with the top of the water blocking casing 3 .

The technical solution of the ground cleaning equipment before vacuuming described in this patent has at least one or more of the following beneficial effects:

The first brush assembly is added, and the convex objects such as the first protrusion or the second protrusion on the first brush assembly form point-to-surface contact with the roller brush, which is opposite to the surface formed by the wiper strip or the pressure rod and the roller brush. Contact, the soft dirt such as hair, noodles and so on adhering to the roller brush cannot be removed by the surface-to-surface contact force of the wiper strip or the pressure lever, and may even be pressed and attached to the roller brush more firmly, resulting in the formation of The first brush assembly with point-to-surface contact, the first protrusion or the second protrusion on the first protrusion or the second protrusion can hook off the adhering soft dirt on the roller brush, so that the first brush assembly can be more effective and thorough It can effectively remove the dirt on the roller brush, effectively improve the removal effect of the dirt on the roller brush, and the continuous cleaning of the surface of the roller brush helps to improve the ground cleaning effect.

In the description of this specification, reference is made to the terms "one embodiment," "some embodiments," "another embodiment," "another embodiment," "other embodiments," "example," "specific example," or The description of "some examples" and the like means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations of the present invention, and those of ordinary skill in the art are within the scope of the present invention Variations, modifications and variations can be made to the above-described embodiments.

Claims

A pre-cleaning ground cleaning device, characterized in that it includes a cleaning device, a water storage device and a vacuuming device;

The cleaning device comprises a rolling brush (1), a brushing assembly (2) and a water blocking casing (3), the rolling brush (1) and the washing brushing assembly (2) are both installed in the water blocking casing (3), The roller brush (1) is a rotatable water-absorbing roller brush, the scrubbing assembly (2) is arranged on one side of the roller brush (1), and the scrubbing assembly (2) includes a conveying rod housing (22) and a rotatable A threaded conveying rod (21) installed in the conveying rod housing (22), the conveying rod housing (22) is provided with a sewage outlet (221) in the rotational conveying direction of the threaded conveying rod (21), and the conveying rod housing (22) ) is provided with an opening (222) in the direction of the roller brush (1), the water blocking shell (3) is arranged in a sealing manner with the conveying rod shell (22), and the water blocking shell (3) and the conveying rod shell (22) can be Block water and dirt spills;

The water storage device has a sewage tank (71), and the sewage outlet (221) is connected to the sewage tank (71) through a sewage pipe;

The dust suction device has a dust suction port (81), the dust suction port (81) is arranged on the front side of the roller brush (1), and the dust suction device suctions the ground through the dust suction port (81). dirt.
The floor cleaning equipment before vacuuming according to claim 1, characterized in that, the vacuuming device further has a vacuuming hood (8), and the vacuuming hood (8) is provided with a vacuuming channel (82). and an access port (83), the dust suction port (81) and the access port (83) are communicated through the dust suction channel (82);

The dust suction port (81) is configured to be foldable, retractable or detachable.
The pre-cleaning floor cleaning equipment according to claim 2, characterized in that, the cleaning device further comprises a cleaning rod (9);

The dust suction rod (9) is detachably mounted on the access port (83), and a dust collection cup (91) and a dust suction pump (92) are arranged on the dust collection rod (9). 91) communicated with the inlet port (83) through the dust collection pipe, and the dust suction pump (92) can suck the dirt into the dust collection cup (91) through the dust collection port (81);

The dust hood (8) is detachably provided above the cleaning device and the water storage device.
The pre-cleaning floor cleaning equipment according to claim 1, characterized in that, the cleaning device further comprises at least one pressing roller (4) and at least one first brush assembly;

The pressing roller (4) is pressed on the rolling brush (1), the pressing roller (4) is located above the washing brush assembly (2), and the pressing roller (4) is rotatably mounted on the water blocking housing ( 3) inside;

The first brush assembly is interposed between the pressing roller (4) and the threaded conveying rod (21), the first brush assembly is in contact with the roller brush (1), and the first brush assembly can scrape off the roller dirt on the brush (1);

The tightness of the contact between the threaded conveying rod (21) and the roller brush (1) can be adjusted.
The floor cleaning device before vacuuming according to claim 4, characterized in that, a plurality of first protrusions (2221) are provided on the upper edge position of the opening (222) of the conveying rod housing (22), a plurality of The first protrusion (2221) is a first brush assembly, and the first protrusion (2221) faces the rolling brush and is in contact with the rolling brush; and/or

The first brush assembly is a brush (51), the brush (51) is rotatably installed in the water blocking housing (3), and the surface of the brush (51) is provided with a plurality of second protrusions ( 511), the second protrusion (511) is in contact with the roller brush (1);

The tightness of the contact between the pressing roller (4) and the rolling brush (1) can be adjusted.
The pre-cleaning floor cleaning device according to claim 4, wherein the cleaning device comprises at least one second brush assembly (52);

The second brush assembly (52) is located on the side of the pressing roller (4) away from the first brush assembly, and the second brush assembly (52) is rotatably mounted on the water blocking housing (3) Inside, the second brush assembly (52) is a rod-shaped component with a plurality of tops disposed on the surface, and the tops are in contact with the roller brush (1);

The surface of the roller brush (1) is provided with a flannel water-absorbing layer (11), the top can fluff the fleece water-absorbing layer (11), and the second brush assembly (52) is a rotating second brush assembly or a non-rotating second brush assembly. Rotate the second brush assembly.
The pre-cleaning floor cleaning equipment according to claim 4, characterized in that, the water storage device further comprises a water purification tank (72), and the water purification tank (72) is arranged in the scrubbing assembly (2). ) on the side away from the roller brush (1), the clean water tank (72) is connected to the water inlet through a clean water pipe.
The ground cleaning equipment before vacuuming according to claim 7, wherein the water storage device further comprises a water pump (73), and a water pump (73) is arranged between the water purification tank (72) and the cleaning device ), the water pump (73) can pump the clean water in the clean water tank (72) to the cleaning device.
The ground cleaning equipment before vacuuming according to claim 7, characterized in that, at least one water replenishment port is provided on the inner wall of the water blocking shell (3), and the water replenishment port faces the roller brush (1), the The water supply port is connected to the clean water tank (72) through a clean water pipe; and/or

The conveying rod housing (22) is provided with a water inlet (223), the water inlet (223) is arranged at one end of the conveying rod housing (22) away from the sewage outlet (221), and the water inlet (223) passes through a clean water pipe connected to the clean water tank (72); and/or

The pressing roller (4) is sleeved with a pressing roller casing (41), the surface of the pressing roller (4) is provided with a spiral groove, and the pressing roller casing (41) is provided with a pressing roller casing water inlet (411) , a water supply port (412) and a water outlet (413) of the pressing roller shell, the water inlet (411) of the pressing roller casing is located at one end of the pressing roller casing (41), and the water outlet (413) of the pressing roller casing ) is located at the other end of the pressing roller shell (41), the water outlet (413) of the pressing roller shell is opened at the bottom of the pressing roller shell (41), and the water supply port (412) of the pressing roller shell faces the roller brush (412). 1), the water inlet (411) of the pressing roller shell is connected to the clean water tank (72) through a clean water pipe; and/or

The brush (51) has a hollow cavity, a plurality of water sprinkling openings (512) and at least one brush nozzle (513), and both the water sprinkling opening (512) and the brush nozzle (513) are communicated with the hollow cavity , a plurality of the sprinkling ports (512) are arranged on the brush (51), the brush nozzle (513) is arranged on one end of the brush (51), and the brush nozzle (513) passes through the clean water pipe and the water purification Box (72) is connected.
The pre-cleaning floor cleaning device according to claim 7, further comprising a brush casing (53), the brush casing (53) being accommodated in the water blocking casing (3), The brush (51) is rotatably installed in the brush housing (53), and the second protrusion (511) on the brush (51) is spirally arranged on the brush (51), so The brush housing (53) has a water inlet (531), a water supply inlet (532) for the brush housing and a water outlet, the water inlet (531) is provided at one end of the brush housing (53), and the brush housing supplies water The mouth (532) opens toward the roller brush (1), and the water inlet (531) is connected to the clean water tank (72) through a clean water pipe.
The ground cleaning equipment before vacuuming according to claim 1, characterized in that, a hollow structure is formed on the top of the conveying rod housing (22) near the opening (222); and/or,

A gap is provided between the upper edge of the opening (222) and the roller brush (1);

The threaded conveying rod (21) is detachably installed in the conveying rod housing (22).
The pre-cleaning floor cleaning equipment according to claim 1, characterized in that, further comprising a driving device (6);

The driving device (6) can drive the rolling brush (1) to rotate;

A plurality of hair clips (213) are arranged on the threaded conveying rod (21).
The pre-cleaning floor cleaning device according to claim 12, characterized in that, further comprising a power storage assembly (61), and the power storage assembly (61) is electrically connected with the driving device (6).
The pre-cleaning floor cleaning device according to claim 1, wherein,

The threaded delivery rod (21) is a shaftless threaded delivery rod (215);

An inclined plate (2222) extends outward from the lower edge of the opening (222), and the inclined plate (2222) extends toward the bottom of the roller brush (1).