CN211834241U - Cleaning head and cleaning tools - Google Patents

Abstract

The present disclosure relates to a cleaning head and a cleaning tool. The cleaning head comprises: a housing; a drum, rotatably mounted on the housing; a ratchet, fixed on at least one end of the drum; a limiting block, fixed on the housing; wherein the limiting A bit block prevents reverse rotation of the ratchet. The cleaning tool includes the cleaning head and a handle hinged to the cleaning head. The present disclosure can limit the cleaning head to move in only one direction through the ratchet wheel and the limit block, so as to avoid the reciprocating forward and backward movement of the mopping drum of the cleaning head, resulting in the surface of the drum contaminated with garbage coming into contact with the ground before cleaning, resulting in secondary pollution of the ground. .

Description

Cleaning head and cleaning tools

technical field

The present disclosure generally relates to a cleaning device, in particular to a cleaning tool for cleaning dry garbage, wet garbage, and mixed garbage including sticky garbage on a level floor.

Background technique

Usually people clean the ground with tools such as brooms, mops, floor wipes, etc. These tools mainly rely on people's manual operations to complete the cleaning work. With the advancement of science and technology, people's requirements for floor cleaning tools have gradually increased.

The first is the vacuum cleaner. Its working principle is "air and dust circulation", that is, it relies on electricity to supply energy and generates negative pressure to absorb garbage and dust on the ground. However, due to the limitation of its working principle, the vacuum cleaner cannot clean some garbage and stains that are firmly attached to the ground. Once liquid enters the vacuum cleaner, it is easy to cause damage to the vacuum cleaner. So now there are new floor cleaners. The new floor cleaner drives the cleaning cylinder (cleaning roller) to wipe the floor through the operation of the motor, and the cleaning cylinder usually adopts a sponge cylinder or a scouring pad. At the same time, the floor cleaner will also be equipped with a water supply system and a water tank to clean the cleaning cylinder, so as to perfectly clean the floor. The cleaned sponge cylinder usually removes the water in it through the squeezing part, otherwise the water will flow to the ground when the sponge cylinder is squeezed with the ground.

In addition, the garbage in the family room and kitchen is mixed with dry and wet garbage, and there may be a mixture of sticky garbage such as various soups (syrup, ketchup, etc.). The existing cleaning tools are not suitable for sticky garbage, especially dry garbage. A mix of trash, wet trash, and sticky trash is powerless and helpless.

The contents in the Background section are merely technologies known to the disclosed person, and do not of course represent the prior art in the field.

Utility model content

In view of at least one of the deficiencies of the prior art, the present disclosure relates to a cleaning head and a cleaning tool, which can limit the unidirectional movement of the cleaning head.

The present disclosure provides a cleaning head including a housing;

a drum rotatably mounted on the housing;

a ratchet, fixed on at least one end of the drum;

a limit block, fixed on the casing; wherein,

The stopper blocks the reverse rotation of the ratchet.

According to one aspect of the present disclosure, the roller includes a hard rubber shaft and a sponge layer covering the hard rubber shaft, and the ratchet is fixed on the hard rubber shaft.

According to one aspect of the present disclosure, the cleaning head further includes a bearing through which the drum is mounted on the housing.

According to an aspect of the present disclosure, the cleaning head further includes a spring, one end of the spring is pressed against the limiting block, and the other end is pressed against the housing.

According to one aspect of the present disclosure, the cleaning head further includes a knob mounted between the bearing and the housing.

According to one aspect of the present disclosure, the knob includes: a short shaft for fixing the bearing; and a flange plate radially extending from one end of the short shaft for being fixed on the housing.

According to an aspect of the present disclosure, the flange plate is fixed on the housing by snaps.

According to an aspect of the present disclosure, the flange is fixed on the housing by threads.

According to one aspect of the present disclosure, the knob further includes a straight protrusion on the flange.

The solutions of various embodiments of the rollers of the present disclosure are applied to cleaning tools. The cleaning tool uses the "water and dust circulation" cleaning technology, which can clean the sticky wet garbage, which is the most difficult to clean with existing cleaning tools, and separate it from the dry garbage.

The present disclosure can limit the cleaning head to move in only one direction through the ratchet wheel and the limit block, so as to avoid the reciprocating forward and backward movement of the mopping drum of the cleaning head, resulting in the surface of the drum contaminated with garbage coming into contact with the ground before cleaning, resulting in secondary pollution of the ground. .

Description of drawings

The accompanying drawings constituting a part of the present disclosure are used to provide further understanding of the present disclosure, and the exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the attached image:

1 is a schematic perspective view of an embodiment of the disclosed cleaning tool;

Fig. 2 is an exploded view of the cleaning head of Fig. 1;

Fig. 3 is a schematic diagram of the internal structure of the cleaning head of Fig. 1;

Fig. 4 is a schematic sectional view of the cleaning head of Fig. 1;

Fig. 5 is a schematic diagram of the bottom surface of the cleaning head of Fig. 1;

Fig. 6 is the schematic side view of the cleaning head of Fig. 1;

Fig. 7 is a schematic diagram of the formation of a squeezing area;

FIG. 8 is a schematic structural diagram of a drum according to an embodiment of the disclosure;

9 is a cross-sectional view of a cleaning tool with the above-mentioned roller;

Fig. 10 is the side appearance schematic diagram of Fig. 9;

Figure 11 is a perspective schematic view of an embodiment of the drum;

Figure 12 is a schematic diagram of the disassembled state of the drum;

Fig. 13 is another perspective schematic diagram of Fig. 12;

Figure 14 is a schematic structural diagram of an embodiment of a squeeze roller;

Figure 15 is a schematic structural diagram of another embodiment of the squeeze roller;

FIG. 16 is a schematic diagram of a thread conducting water in an embodiment;

Figure 17 is a schematic diagram of a secondary water tank structure;

Fig. 18 is a schematic diagram of the internal structure of the cleaning tool with the squeeze roller of Fig. 14 and the roller of Fig. 8;

19 is a schematic diagram of a water groove formed by the interference of the squeeze roller and the roller in one embodiment;

20 is a schematic diagram of a water tank formed by the interference of the squeeze roller and the roller in another embodiment;

Fig. 21 is the structural representation that the cleaning unit is a straight row brush;

Fig. 22 is the structural representation that the cleaning unit is the combination of the scraper assembly and the straight brush;

FIG. 23 is a schematic structural diagram of a scraper strip according to an embodiment;

FIG. 24 is a schematic structural diagram of an embodiment including a sewage tank and a clean water tank;

Figure 25 is a schematic structural diagram of a cleaning tool with a power assist system;

26 is a schematic cross-sectional view of the cleaning head of FIG. 25;

Figure 27 is an exploded view with a handle for assisting the identification structure;

Figure 28 is a schematic diagram of the installation and rotation state of the booster wheel;

Figure 29 is an exploded view of the booster wheel structure.

Detailed ways

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present disclosure. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive.

In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "top", "bottom", "front", " Rear", "Left", "Right", "Straight", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation of the present disclosure. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present disclosure, "plurality" means two or more, unless expressly and specifically defined otherwise.

In the description of the present disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection: it can be a mechanical connection, an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

In the present disclosure, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes that the first feature is directly above and diagonally above the second feature, or simply means that the first feature is level higher than the second feature. The first feature "below", "below" and "beneath" the second feature includes the first feature being directly above and diagonally above the second feature, or simply means that the first feature is at a lower level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the present disclosure. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity and not in itself indicative of a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The preferred embodiments of the present disclosure will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, but not to limit the present disclosure.

The present disclosure relates to a cleaning tool, which is used for cleaning floors, especially smooth and flat small-area floors, such as household and kitchen floors. The cleaning tool of the present disclosure is particularly suitable for cleaning mixed garbage mixed with dry garbage, wet garbage, and sticky substances such as noodles, porridge, ketchup, and the like.

The dry garbage in the present disclosure refers to granular garbage, such as peels, melon seed shells, rice grains, paper pieces, and the like.

Wet garbage is liquid garbage, such as water, beverages, etc.

Sticky wet garbage includes semi-solid garbage with a certain viscosity, such as soup, soup, porridge, ketchup, chocolate sauce, etc.

Other garbage, such as dust, ground marks, etc., is also the cleaning object of the present disclosure.

1 is a perspective view of an embodiment of the disclosed cleaning tool, FIG. 2 is an exploded view of the cleaning head; FIG. 3 is a schematic diagram of the internal structure of the cleaning head; FIG. 4 is a schematic cross-sectional view, FIG. Side view of the head. As shown in conjunction with FIGS. 1 to 6 , the cleaning tool of the present disclosure includes a connected cleaning head and a handle. The hand-held part includes a cleaning rod 301, an extension rod 302, and the cleaning rod 301 and the extension rod 302 are connected by a connecting structure 304. The cleaning rod 301 is connected with the cleaning head through a hinge structure 305 . The operator drives the cleaning head to move on the ground through the hand-held part to clean up all kinds of garbage scattered on the ground.

The cleaning head of the cleaning tool of the present disclosure includes a housing 500, and a cleaning module is installed at the bottom of the housing and inside the housing, and the cleaning module separates garbage from the ground and separates in the housing. On the bottom surface of the housing, wheels 190 are installed to reduce the contact between the non-cleaning module and the ground, so that dragging is more labor-saving.

The cleaning module includes a mopping unit 110 arranged at the bottom of the housing, a squeezing unit 120 arranged in parallel with the mopping unit, a dry garbage collection unit 150 arranged behind the mopping unit for storing dry garbage, and a dry garbage collection unit 150 disposed at the rear of the mowing unit. The cleaning unit 130 at the inlet of the unit 150, the sewage collection unit 140 and the purified water supply unit 160.

Wherein, the sweeping unit 110 includes a drum 111 , a blade 112 , a drum driving mechanism 113 and a drum transmission mechanism 114 . The drum driving mechanism drives the drum 111 to rotate about its axis counterclockwise in FIG. 4 through the drum transmission mechanism. The shovel 112 is fixed on the casing 500 and has an arc-shaped working surface, and a gap with a uniform distance is formed between the arc-shaped working surface and the outer circumference of the drum 111 .

The roller 111 includes a hard rubber shaft in an inner layer and a sponge layer wrapped around the hard rubber shaft. The end of the hard rubber shaft can be fixed on the housing 500 by connecting parts such as bearings. The roller drive mechanism 113 drives the hard rubber shaft to rotate around its axis through the roller transmission mechanism 114, and drives the sponge layer to rotate, so that the surface of the sponge layer makes a circular motion.

When the drum 111 rolls over the ground, the dry garbage particles on the ground press and deform the sponge layer, and the sponge layer wraps the dry garbage particles through deformation, so that the dry garbage particles are separated from the ground and rotate together with the drum 111 . When turning to the position of the shovel bar 112, the particles of dry garbage leave the ground, are squeezed by the shovel bar 112, and continue to rotate together with the drum 111. When turning over the shovel bar 112 and turning to the entrance of the dry garbage collection unit 150 , due to the loss of the pressing force of the shovel bar 112 , the sponge layer 111 b recovers and deforms, releases the wrapped dry garbage particles, and bounces them into the dry garbage collection unit 150 .

The axis of the extrusion unit 120 is arranged parallel to the drum 111 , and can be fixed on the casing 500 through both ends, or fixed on the casing 500 through a snap structure. The hardness of the pressing unit 120 is much greater than that of the sponge layer 111b. The distance between the pressing unit 120 and the axis of the drum 111 is less than the sum of the radii of the two. Therefore, the pressing unit 120 squeezes the surface of the drum after assembly. A water squeezing area B is formed at a position where the pressing unit 120 faces the drum 111 .

FIG. 7 is a schematic diagram of the formation of the water squeezing area. As shown in FIG. 7 , the squeezing unit 120 interferes with the roller 111 , and squeezes the sponge layer 111 b of the roller at the interference. In the figure, the drum 111 rotates clockwise, and a water squeezing area B is formed below the pressing unit 120 in the figure. The water carried on the roller sponge layer 111b flows out after being squeezed, and is collected by the sewage collection unit 140 . After the drum passes through the wet garbage, the sponge layer carries the wet garbage and continues to rotate clockwise. On the drum, the sponge layer from the grounding point M (the position in contact with the ground) to the squeezing point N (the position in contact with the pressing unit 120 ) contains sewage, and after being squeezed by the squeezing unit 120, the sewage is squeezed. The water area B leaves the sponge layer and is collected by the sewage collection unit 140, so that the water content of the sponge layer passing through the squeezing point N is unsaturated, and it can continue to absorb water when it is rotated to the point M again to contact the ground. In this way, the cleaning tool It can continuously absorb the accumulated water on the ground to avoid the sponge being saturated and unable to absorb water effectively.

The cleaning tool of the present disclosure further includes a clean water supply unit 160 . The purified water supply unit 160 sends purified water directly or indirectly onto the sponge layer 111b. The purified water enters the inside of the sponge layer, overflows from the sponge layer when being squeezed by the squeezing unit 120, and peels off the dirt attached to the surface of the sponge layer 111b, thereby cleaning the surface of the drum.

When the drum rolls over the sticky wet trash on the ground, the sticky wet trash adheres to the surface of the sponge layer 111b. The clean water provided by the clean water supply unit 160 washes away the sticky wet garbage layer adhering to the surface of the sponge layer 111b.

In order to maintain a relatively dry state of the extruded sponge layer, the clean water supply unit 160 sets the clean water outlet in the water squeeze area. In the water squeezing area, the sponge layer 111b absorbs purified water and becomes a saturated state, and then squeezed by the water squeezing unit 120, the wet garbage and water locked by the sponge layer and adsorbed from the ground are discharged, and the liquid is discharged during the process of taking away The sticky wet garbage on the surface of the sponge layer 111b keeps the surface of the sponge layer 111b clean. Therefore, the present disclosure can achieve cleaning of the surface of the roller brush 111 without the operator's action or interruption of the cleaning work. During the process of pushing the roller, the surface of the roller brush in contact with the ground is clean.

The present disclosure also includes a cleaning unit 130 . The cleaning unit 130 is provided above the entrance of the dry refuse collection unit 150 . When the surface of the drum turns over the upper end of the shovel and reaches the entrance of the dry garbage collection unit 150, the solid garbage attached to the surface cannot be separated from the sponge layer 111b by the elasticity and self-weight of the sponge, and the cleaning unit 130 scrapes it off, and the scraped garbage It falls under its own weight and falls into the dry garbage collection unit 150 . The cleaning unit 130 is especially suitable for some light and easy-to-adhere garbage, such as pieces of paper and the like. The cleaning unit 130 keeps the surface of the sponge layer 111b free of dry garbage.

The cleaning tool of the present disclosure further includes a water circulation module 200 , and the water circulation module 200 includes a sewage collection unit 140 and a clean water supply unit 160 connected by pipes. The sewage is extruded from the drum 111, and the extruded sewage is collected into the sewage collection unit 140 through the pipeline. After purification, it enters the clean water supply unit 160, and is recycled again. It is sprayed to the above-mentioned water squeezing area again, and the roller is brushed. wash.

The beneficial effects of the present disclosure are:

Using the present disclosure to clean the ground, the wet outer layer sponge contacts the ground, and the dust on the ground will not be raised, and has the effect of an ordinary mop, preventing secondary pollution;

The outer sponge and the shovel cooperate with each other, which can completely collect the solid waste;

The cleaning unit separates and collects the solid waste attached to the outer sponge to keep the surface of the outer sponge free of solid waste;

The drum absorbs the wet garbage on the ground. When the water in it is squeezed out, the sticky garbage attached to the surface of the drum is peeled off and diluted. The water-soluble part is brought into the sewage tank, and the water-insoluble part is peeled off from the drum and enters the solid state. waste bins, which can handle sticky waste and separate dry and wet waste;

The squeezing unit squeezes out the liquid locked in the outer sponge to maintain the unsaturated state of the outer sponge, so that the cleaning tool can continuously clean the liquid garbage;

The water supply unit and the extrusion unit work together to keep the rollers touching the ground always in a clean state;

Therefore, the present disclosure can clean sticky wet garbage, especially a mixture of various garbage, and can separate dry and wet garbage, and keep the outer sponge surface of the drum clean continuously.

Each component of the present disclosure and the combination relationship of the components are not unique, and will be described one by one below.

Examples of rollers

FIG. 8 is a schematic structural diagram of a drum according to an embodiment of the disclosure. As shown in FIG. 8 , the roller includes a hard glue shaft 111c located at the center of the shaft and a sponge layer 111b wrapped and fixed on the circumferential surface of the hard glue shaft.

The density and hardness of the sponge have a direct impact on the water absorption performance and water storage rate (also known as water retention). When the density of the sponge increases to a certain extent, the water absorption performance will decrease, the hardness will increase, and the water storage rate will increase; on the contrary, the sponge density will decrease, the water absorption will increase, the hardness will decrease, and the water storage rate will decrease.

The roller in this embodiment has only a single sponge layer, and the sponge layer 111b is made of polyvinylalcohol (polyvinylalcohol, vinylalcohol polymer, PVA for short) foaming. The density of the PVA sponge is 0.25-0.5 g/cm ³ and the water absorption rate is 0.5-1.5 g/cm ³ . Shore A of PVA sponge is 40-70. The water storage rate of the PVA sponge is 0.2-1.0 g/cm ³ . Because the sponge layer of the present disclosure has the above-mentioned characteristics, compared with the existing single-layer ordinary sponge roller, it has a better effect:

The sponge layer not only has suitable water absorption performance, water storage rate, but also has suitable density and hardness, which enables the sponge to deform just right during the mopping process, wrap the garbage particles, and, when turning over the limit of the shovel, can Using its own elasticity, most of the garbage particles are ejected, separated from the sponge layer, and fall into the dry garbage collection unit, so that there will be no omission; and when dealing with the accumulated water on the ground, the sponge can absorb more water and drag it over. less water remains on the bottom surface.

The single-layer sponge layer of the present disclosure does not have the drawback that the double-layer sponge is squeezed and separated from the layer, which affects the life of the drum.

The thickness of the sponge layer of the present disclosure is generally 3-15 mm, and its deformation is sufficient to wrap common granular garbage. Household cleaning tools, equipped with a 5-10mm thick sponge layer, can handle the common dry garbage on the household floor.

The diameter of the drum of the present disclosure can be as small as 15mm at the minimum and as large as 700mm at the maximum.

For example, a 3mm thick sponge layer is attached to a solid hard rubber rod with a diameter of 9mm, and it is assembled into the above cleaning tool to treat dry garbage with small particle size, which can be used in relatively clean places such as exhibition centers and museums.

The drum with a diameter of 700mm is generally used outdoors, or in places with large dry garbage particles.

On the surface of the drum, a spiral protrusion, which can be called a first spiral protrusion 111f, may also be provided. As shown in FIG. 8, the spiral protrusion is a strip extending from one end of the drum to the other end. In other embodiments Among them, two spiral protrusions can be arranged, and the two spiral protrusions have the same pitch and extend from the opposite side of one end of the drum to the other end of the drum. That is, the starting ends of the two spiral protrusions are located on the same generatrix of the drum. In other embodiments, the arrangement of the two helical protrusions may also be different: starting from the same generatrix at both ends of the drum, and extending toward the middle in opposite helical directions. At the approaching position of the two spiral protrusions, that is, the middle part of the drum, there is a linear protrusion parallel to the axial direction, and the linear protrusion is connected with the two spiral protrusions.

9 is a cross-sectional view of a cleaning tool with the above-mentioned roller, FIG. 10 is a schematic side view of FIG. 9 ; FIG. 11 is a perspective view of an embodiment of the roller; Schematic diagram of the angle of view. 8 to 12, one end of the hard rubber shaft includes a connecting shaft, and the other end is a hollow cylinder.

One end of the driving motor 113a is fixed on the cleaning head through the fixing base 113e and the rotating shaft 113c, and the other end can rotate around the rotating shaft at a certain angle. The hollow end of the hard glue shaft 111c is sleeved on the motor, the end abuts the driving motor 113a, and the other end of the hard glue shaft is fixed on the pressing and retractable device on the cleaning head. Pressing the telescopic device 113f includes parts such as buttons, springs and stoppers. The button is stressed, and the compression spring drives the stoppers to move away from the position that resists the hard glue shaft. At this time, the end of the hard glue shaft 111c can be moved out of the cleaning head housing. The other end drives the drive motor 113a in it to rotate around the shaft 113c together to form the shape shown in Figures 12 and 13, and then pull out the roller from the motor to remove the roller 111. When the button of the telescopic device is pressed, the stopper retracts, and when the button is released, the stopper resets. By doing the reverse, the roller can be mounted on the cleaning head. Alternatively, press the telescopic device on the drum, press the button, the spring drives the block to shrink and push it out from the recess on the cleaning head housing of the block, so that the drum is freed from the shackles of the cleaning head, and the drum can be easily taken out at this moment.

The drum of the present disclosure can also be made into a structure in which both ends are blocked, and the driving motor is connected with the drum through the connecting piece to drive the drum to rotate. The cleaning tool with a roller drive motor can reduce the operator's thrust on the cleaning tool and is suitable for operators with insufficient strength.

The spiral protrusion on the drum can guide the sewage extruded from the extrusion unit to the designated position along the thread direction, such as the suction nozzle of the sewage pipe, which can prevent the sewage from overflowing and cause secondary pollution of the bottom surface.

Examples of extrusion units

The pressing unit of the present disclosure includes an elongated object arranged side by side with and interfering with the rollers. The elongated object is fixed on the shell of the cleaning head and interferes with the drum. The hardness of the elongated object is greater than the hardness of the sponge layer on the surface of the drum, which can compress the sponge layer to deform. Extrusion units can have different physical configurations, each with its own advantages.

As shown in FIG. 9 , the pressing unit includes a fixing seat 125 and a strip protrusion 126 . The pressing unit is fixed on the housing by the fixing seat. When the drum 111 rotates around its axis, the strip protrusions 126 do not move, and the sponge layer of the strip protrusions is squeezed and deformed, and most of the moisture locked by the sponge layer is squeezed out of the sponge surface and flows down.

The squeezing unit may be a cylindrical squeezing roll. Secure to the cleaning head by means of both ends. The surface of the squeeze roller can be smooth or with helical protrusions.

FIG. 14 is a schematic structural diagram of an embodiment of a squeezing roller. As shown in FIG. 14 , the squeezing roller 121 of this embodiment includes a roller body 121a, which is cylindrical, and is installed on the housing of the cleaning head through both ends. The circumferential surface of the roller body 121a is provided with helical protrusions, which may be referred to as second helical protrusions 121f in order to distinguish it from the helical protrusions on the drum. The number of spiral protrusions on the circumferential surface of the squeeze roller is one, extending from one end to the other end of the squeeze roller.

FIG. 15 is a schematic structural diagram of another embodiment of the squeeze roller. The difference between this embodiment and the embodiment shown in FIG. 14 is that there are two second helical protrusions 121f, which start from the same generatrix at both ends of the roller body 121a and extend toward the middle of the roller body in opposite helical directions.

In this embodiment, in the middle of the roller body 121a, there is a straight line protrusion 121g parallel to the axial direction of the roller body 121a at the intermediate position of the two second helical protrusions 121f. Raised connection.

In this way, a closed side wall can be formed on the surface of the roller body 121a here.

The side wall of the spiral protrusion can push the water to help push the sewage pressed out by the squeezing roller to the sewage outlet.

The squeezing roller shown in Fig. 14 is equipped with a cleaning head with the sewage port located on the side, and the squeezing roller shown in Fig. 15 is equipped with a cleaning head with the sewage port located in the middle of the squeezing roller.

FIG. 16 is a schematic diagram of the water conduction of the thread. The direction of water flow in FIG. 16 is shown by the arrow, the drum 111 rotates clockwise, and the squeezing roller 121 rotates counterclockwise, forming a squeezed water tank at the angle between the squeezing roller 121 and the drum. The water purification port is on the right end of the machine, and the water pumping port is on the left end of the machine. In order to make the water flow quickly, a thread is added to the squeeze roller 121. The side of the thread can push the water, making the water flow faster and avoiding accumulation. , the water surface rises and overflows the shell.

In the cleaning tool where the sewage outlet and the water purification outlet are respectively located on opposite sides of the cleaning head, in order to speed up the flow of water, a secondary water tank is also arranged beside the drum. Figure 17 is a schematic diagram of the structure of the secondary water tank. The secondary tank 1410 is angled. The water inlet 1411 is slightly higher than the water outlet 1412. After the squeezing unit 120 squeezes out the water in the drum 111, the water in the drum flows into the water tank along the surface of the drum. Since the water tank has a certain inclination angle, the water flow rate in the water tank will be relatively fast. Improves the efficiency of cleaning the drum.

In addition, the arrangement of the second helical protrusions can also be changed: for example, there are two second helical protrusions with the same pitch, extending from the opposite side of one end of the roller body to the other end of the roller body. That is, on the basis of the embodiment of FIG. 14 , a second helical protrusion is added, and the starting points of the two second helical protrusions are located on opposite sides of the circumference of the roller body.

FIG. 18 is a schematic view of the internal structure of the cleaning tool with the squeeze roller of FIG. 14 and the roller of FIG. 8 . In this embodiment, the roller 111 has a first helical protrusion 111f, and the squeezing roller 121 has a second helical protrusion 121f. The thrust against water is stronger.

The extrusion unit interferes with the roller, and the extruded water exists between the two to form a water tank. Clean water can be sprayed on the surface of the drum, or the clean water can be injected into the water tank to clean the surface of the drum. As shown in FIG. 19, the squeezing roller 121 interferes with the drum 111, and a water tank A is formed above the interference between the two.

The position of the extrusion unit is set, considering the formation position of the water tank. In FIG. 19 , when the drum 111 is rotated clockwise, the squeezing roller 121 is provided at the upper right of the drum, and the water groove is formed in the right half of the drum. In FIG. 20 , when the drum 111 rotates counterclockwise, and the squeezing roller 121 is set at the upper left, the formed water tank will be in the left half.

The present disclosure refers to the stationary extrusion of the extrusion unit relative to the housing as static extrusion. The structure of static extrusion is simple, and the extrusion unit can be directly integrated with the main structural parts of the machine. More convenient when designing.

The extrusion unit can be fixed or rotated.

In one embodiment, blind holes may be provided at both ends of the roller body. The extrusion unit also includes bearings, bearing mounts and connecting stub shafts. The bearing is fixed on the housing of the cleaning head through the bearing mounting seat; one end of the connecting short shaft is fixed in the bearing, and the other end is fixed in the blind hole.

Alternatively, both ends of the roller body are provided with connecting shafts, and the connecting shafts are fixed in the bearings.

In this way, the squeeze roller is rotatably fixed on the housing of the cleaning head.

The squeeze roller can be equipped with a power mechanism to actively squeeze water, and it can also save costs. It is not equipped with a power mechanism and relies on the friction of the roller to rotate.

A first motor can be fixed on the housing of the cleaning head, and the first motor is connected to the squeezing roller to drive the squeezing roller to rotate.

When the drum is also equipped with a drive motor, the drive motor rotates in the opposite direction to the first motor. This saves power the most. Both the drive motor and the first motor can use a motor within 10W, which can realize the cleaning of ordinary household cleaning tools without noise, and the technology is environmentally friendly.

Of course, the driving motor and the first motor may also rotate in the same direction. The rotational speed of the first motor and the driving motor can generally be equal to the inverse ratio of the diameters of the squeeze roller and the roller, so that the linear speed at the contact point of the two is the same, which saves the most power.

When the rotational speed of the first motor is greater than the rotational speed of the driving motor, the water squeezing effect of the squeezing roller is better than the above case. However, the energy consumption of the first motor is relatively increased.

When the rotational speed of the first motor is smaller than the rotational speed of the driving motor, the water squeezing effect of the squeezing roller is better than the situation where the squeezing roller does not rotate.

Examples of cleaning units

The cleaning unit of the present disclosure may take many forms.

Example of roller brush assembly

The cleaning units shown in Figures 16, 18, 19, and 20 are roller brush assemblies. As shown, the roller brush assembly 131 includes a roller brush shaft 131b and bristles 131a. The bristles 131a are provided on the circumferential surface of the roller brush shaft 131b. The bristles shown in Fig. 16 are arranged in a V-shape, and the bristles shown in Fig. 18 are arranged in a straight line along the generatrix direction. The roller brush assembly is to plant the bristles on the plastic roller brush shaft. The roller brush shaft can be made hollow or solid, which is selected according to the specific structure and implementation. The roller brush is evenly arranged with 6-8 groups of bristles.

The roller brush circle can be driven by a motor: the roller brush shaft 131b is connected with the third driving motor through a coupling.

Realize the rotation of the roller brush.

The diameter of the bristles 131a is generally selected from nylon bristles of 0.1 mm. The length of the bristles 131a is determined according to the specific structure. The bristles 131 a of the roller brush assembly 131 contact the surface of the roller 111 . Micro-contact, generally interferes between 0.5-1mm, the purpose of this is that the bristles can slightly beat the solid waste such as floating ash on the rolling brush. If there is too much interference, the damping of the drum will be increased, and the water in the sponge layer of the drum will be thrown out, and then it will enter the trash box through the roller brush track, making the trash box excessively wet.

The structural arrangement of the roller brush and the roller can be in various forms, mainly to achieve the above-mentioned functions.

The roller brush assembly can be used in all types of cleaning tools mentioned in this disclosure.

Example of straight brush

The cleaning unit shown in FIG. 21 is a straight brush 132 . Inline brushes 132 are fixed to the housing of the cleaning head. The working process of the cleaning tool shown in FIG. 21 is as follows: after the drum 111 rolls the garbage, the water-containing part of the wet garbage or sticky garbage on the ground is absorbed by the unsaturated sponge layer of the drum. For solid waste roller sponge layer deformation, wrap it, then roll it up. After passing through the track of the shovel bar 112, and then reaching the highest point of the shovel bar, the solid waste falls into the trash box 141 at the bottom under the rebound of the sponge layer and the action of gravity without relative pressing. The upper end of the garbage box 141 is provided with straight brush bristles, the length of the straight brush 132 is consistent with the length of the drum 111, the bristles are evenly arranged, and the function of the bristles is to sweep away the fine garbage such as fluff and floating ash adhered to the drum. Try to keep this garbage out of the sink as much as possible. This structure saves space, reduces costs, and can also achieve a good cleaning effect.

Inline brushes can be used in all types of cleaning tools mentioned in this disclosure.

Example of scraper assembly

In the case of many sticky garbage occasions, if you use a rolling brush or a straight brush to clean the drum, the sticky objects will stick to the brush, and it will be difficult to clean the machine in the end. To this end, the present disclosure adopts a scraper and scraper structure to scrape the sticky garbage on the drum into the garbage bin. The specific embodiment is shown in FIG. 23 , FIG. 3 , and FIG. 9 , and the cleaning unit is a scraper assembly 133 .

As shown in conjunction with FIG. 23 , FIG. 3 and FIG. 9 , the wiper strip assembly 133 includes a long strip-shaped wiper strip support 133c for fixing on the cleaning head. The wiper holder 133c is provided with a substantially "herringbone"-shaped friction portion 133a and a drainage portion 133b. For ease of understanding, in the coordinates of FIG. 23 , the X direction is referred to as the longitudinal direction, the approximately Y direction is referred to as the width direction, and the approximately Z direction is referred to as the height direction.

The wiper strip assembly 133 is formed by extending the wiper strip support in the width direction. The drainage portions 133b are located at both ends of the scraper support, and extend substantially along the height direction of the scraper support.

In the cleaning tool shown in FIG. 9 , the cleaning tool includes a drum 111, a motor 113a for driving the drum, a blade 112, and a trash box 141.

The outer layer of the drum is made of a water-absorbing sponge layer, and the inner layer is supported by a hard rubber shaft. The two ends or the center of the hard rubber shaft are provided with a driving force to make the drum rotate.

Wherein, a scraper bracket 133c is fixed above the garbage box 141 at a position close to the drum 111 . The scraper assembly 133 is in close contact with the drum 111, and the end of the friction part interferes with the surface of the drum by 0-0.5 mm. The friction part 133 a can peel off the floating ash and sticky garbage remaining on the drum 111 from the drum, so that they fall into the garbage box 141 . The drainage portion 133b is attached to the drum 111, and is pre-pressed to the center of the drum by 0.5-3mm. Since the water tank for cleaning the drum is designed at the top, the drainage portion 133b is used to seal the water and prevent the water in the water tank from flowing from both ends of the wiper strip. into the trash can.

As shown in FIG. 23 , the edge of the friction part 133a has a tooth shape, and the tooth shape can better peel off the floating ash and sticky garbage attached to the drum from the drum.

A plurality of alignment blocks are provided at positions of the wiper bracket 133c facing away from the friction part 133a and the drainage part 133b. Correspondingly, a plurality of recesses are provided on the housing of the cleaning head connected with the wiper bracket 133c. Through the cooperation of the alignment block and the recess, the position can be quickly aligned and the assembly efficiency is improved.

The friction part and the drainage part can be made of the same material as the scraper bracket, or they can be made of different materials, and they are respectively formed and fixed together by means of bonding or the like. The wiper holder can be fixed to the housing of the cleaning head by gluing or overmolding.

The wiper bar assembly can be used in all types of cleaning tools mentioned in this disclosure.

The cleaning tool shown in FIG. 24 also includes a sewage tank 211 and a clean water tank 231 . The clean water tank 231 is provided with one end of the mop bar 40 close to the mop head. The clean water tank includes long strips of clean water outlets 2311 , which are aligned with the surface of the drum 111 between the squeezing roller 121 and the wiper assembly 133 .

In addition, in other embodiments, the sewage tank can be connected to a sewage port through a pipeline, and the sewage port is provided on the side of the casing near the position between the squeezing roller and the scraper. The water purification tank is connected to the water purification port through a pipeline, and the water purification port is arranged on the other side near the position between the squeeze roller and the scraper, and the height of the water purification port from the ground is greater than the height of the sewage port from the ground. The drainage part of the wiper assembly is just located at the clean water outlet and the sewage outlet. In this embodiment, the height difference between the clean water inlet and the sewage outlet is used to promote water flow by relying on the weight of the water, and the drainage portion of the wiper assembly can guide water, which can better prevent water from overflowing out of the waterway system.

The cleaning unit shown in Figure 22 is a combination of a wiper assembly and an inline brush. In the wiper strip assembly 133 of this embodiment, the friction part of the wiper strip assembly shown in FIG. 23 is replaced with a straight brush 1331. The water purification outlet 2311 is arranged on the extrusion unit to form straight water purification holes or narrow and long water purification ports. The waste tank 211 is provided in the center of the cleaning head.

In addition, there is a cleaning method of air knife blowing. It is suitable for cleaning up dry waste adhering to the drum. In Fig. 22, where the wiper assembly 133 is set, replace it with an air outlet, and blow the surface of the drum in the opposite direction along the tangential direction of the tangential direction, so that the hair, paper, etc. on the surface of the drum can be cleaned.

The components of each of the above cleaning tools of the present disclosure can be combined as required. Several embodiments of the combined cleaning tool are exemplified below.

Example 1 of the cleaning tool

The cleaning tool in this embodiment has no power and includes a one-way mechanism.

The cleaning tool of this embodiment includes a cleaning head and a handle hinged with the cleaning head.

2, 3, and 6 show the cleaning head of this embodiment. As shown in the figure, the cleaning head includes a roller 111 arranged on the housing 500, a one-way mechanism arranged on at least one side of the roller, a squeeze roller 121 obliquely above the roller, a shovel 112 below the roller, The scraper assembly 133, the trash box 141 below the scraper assembly, the sewage tank 211 behind the trash box, and the clean water tank 231 provided on the mop bar. At least two wheels 190 are provided at the bottom of the cleaning head.

A roller mounting hole is provided on the housing, and the roller 111 is rotatably mounted on the housing 500 through the bearing 115d and the knob 115e.

The knob 115e includes: a short shaft 115e1 for fixing the bearing 115d; The flange plate is provided with straight protrusions 115e3. It is convenient for the operator to rotate the knob to take out the drum 111 .

The flange plate can be fixed on the casing by means of snaps, or can be fixed on the casing by means of threads.

The one-way mechanism includes a ratchet 115a fixed on one end of the drum, a limit block 115b fixed on the housing, and a spring 115c abutting between the limit block and the housing. The roller includes a hard rubber shaft and a sponge layer covering the hard rubber shaft, and the ratchet 115a is fixed on the hard rubber shaft of the roller 111 . The limiting block 115b abuts against the ratchet teeth of the ratchet wheel 115a under the action of the spring, so that the ratchet wheel 115a can only rotate counterclockwise as shown in FIG. 3 .

The cleaning tool of this embodiment relies on the operator to push forward: for dry garbage, wet garbage, sticky garbage or a mixture of the three types of garbage, it is only necessary to push the cleaning tool to make the drum pass through the ground sprinkled with garbage, and the drum rotates. The clean water in the water purification tank falls on the surface of the drum by its own weight and wets the drum. The sponge on the surface of the drum wraps the dry garbage and enters the garbage box under the action of the shovel; the wet garbage is absorbed by the sponge layer of the drum; the sticky garbage adheres to the surface of the drum. A small amount of dry garbage and a large amount of sticky garbage attached to the sponge layer on the upper end of the rotating blade are scraped off by the scraper and separated from the sponge layer; the squeezing roller squeezes out the water absorbed in the sponge layer, and rinses the surface of the sponge layer below, which can be removed. The sticky garbage attached to it is washed away and falls into the sewage tank. The surface of the roller after being squeezed is restored to be clean, so that when it touches the ground again, it is still in a clean state.

The sponge roller is in contact with the ground and rubbed, which is equivalent to the action of wiping the ground, which can clear the marks on the ground.

When there is sticky garbage on the ground, the sponge roller will suck the wet part into the sponge pores, wrap the soft garbage for the slightly dry part of the roller, and then, with the cooperation of the shovel, remove the sticky garbage with the help of the shovel. into the machine.

This embodiment can not only clean solid garbage, but also clean wet garbage and sticky garbage, which can perfectly solve the problems existing in the existing cleaning tools on the market. Improve cleaning efficiency.

In this embodiment, the model is small, and no motor-type driving device is provided, and the overall cost is low, which is more suitable for indoor use at home.

The sponge roller will not cause damage to the ground; the wet sponge roller will wrap the garbage, and then roll it into the inside of the machine, which will not generate dust and cause air pollution; the garbage compacted by the sponge roller will be moistened and the volume will become smaller , It can also be applied to the ground with water stains.

Example 2 of the cleaning tool

The cleaning head of the cleaning tool in this embodiment includes a power roller, and the water tank is arranged on the cleaning head. There is a filter device in the waterway to prevent the water pump from clogging.

9-18 are schematic structural diagrams of this embodiment. As shown in the figure, the cleaning head is sequentially equipped with a drum 111 , a strip protrusion 126 , a "herringbone"-shaped scraper 133 , a garbage box 141 , and a water tank 210 from front to back.

Different from Embodiment 1 of the cleaning tool, the drum of this embodiment is driven by a motor 113a. One end of the motor 113a is installed on the housing 500 through the rotating shaft 113c, the outer diameter of the motor 113a is sleeved in the drum, and the other end of the motor 113a is fixed on the hard glue shaft of the drum, so that the drum follows the outer diameter of the motor (equivalent to the outer diameter of the motor). the output shaft of the motor) rotates. The roller of this embodiment can be a flat roller or a roller with threads, and the roller can be detachably mounted on the casing by pressing the telescopic device.

The water tank 210 in this embodiment is located at the end of the cleaning head, and the water is pumped by the water pump to drive the water circulation. The water tank is divided into a sewage box and a water purification box by a removable filter box or screen in the middle. The clean water box is connected to the clean water outlet provided on the casing through a pipeline, and the clean water outlet guides clean water into the cleaning area formed by the strip protrusion 126, the middle of the scraper 133 and the surface of the drum to clean the surface of the drum. The cleaned sewage and the sewage squeezed out by the strip protrusions 126 flow into the sewage box through the pipeline through the sewage inlet provided on the opposite side. The sewage in the water tank is filtered by the filter screen or the filter box, enters the clean water tank, and is pumped to the cleaning area by the water pump again, and so on.

At the inlet and outlet of the water tank, a one-way valve is installed, and a thimble is installed at the corresponding position of the housing. When the water tank is taken out from the shell, the one-way valve is closed to prevent water from overflowing. When installing, the thimble touches the one-way valve to make the water path unblocked.

The filter screen or filter box can filter the dry garbage or small garbage that accidentally enters the waterway, prevent the blockage of the water pump, and prolong the service life of the cleaning head.

In this implementation, an ozone generating device can also be integrated in the mop rod, and the generated ozone is passed into the water tank, so that the water in the water tank contains ozone, and the water will not breed bacteria for a period of time to prevent the water from becoming moldy; Water washes the drum, and the drum cleans the ground, which can have the effect of sterilizing the ground.

The strip-shaped protrusions 126 in this example can be replaced with a threaded squeezing roller, which has a stronger guiding effect on the water flow.

This implementation uses power to drive the drum, making the operation more convenient.

In addition, the drum and the water tank in this embodiment can be disassembled, which is convenient for maintenance and cleaning; the filter device is used to keep the waterway clean, and the service life is longer; the ozone has a disinfecting effect on cleaning tools and the ground, and the cleaning is more thorough.

Example 3 of the cleaning tool

This embodiment has a power assist system, which is suitable for larger cleaning tools.

25 to 29 are schematic structural diagrams of this embodiment. As shown in the figure, the cleaning tool includes a cleaning head 10 with a motor-driven booster wheel 11 at the bottom, and a hollow mop rod 40, which is hinged on the mop head. The near-ground end of the mop bar is equipped with a large-capacity clean water tank. The water tank is relatively heavy. In order to save effort and facilitate operation, the mop bar 40 includes a handle 41 with a power-assisted identification structure. The assisting identification structure is electrically connected with the assisting wheel motor, and controls the steering of the assisting wheel motor 22 . The cleaning head includes a mopping unit, a squeezing unit, a cleaning unit, a dry garbage collecting unit, and a sewage collecting unit of one of the above-mentioned embodiments, which will not be described again.

The handle 41 with the power-assist identification structure includes: a control module, a pressure sensor 410 , a sensor push rod 412 , a push rod sliding sleeve 415 and a handle cover 413 . The pressure sensor 410 is installed between the end face of the mop rod and the handle cover 413 . One end of the sensor push rod 412 abuts against the pressure sensor 410 , and the other end is fixed in the handle sleeve 413 . The pressure sensor is signally connected to the control module, and the control module controls the steering of the motor. The inner diameter of the ejector rod sliding sleeve 415 is fixed on the circumferential surface of the sensor ejector rod 412 , one end is fixed with the end surface of the mop rod, and the outer circumferential surface is slidably sleeved in the handle sleeve 413 .

The method of controlling the power assist is: when working, the pressure sensor senses the force change of the handle; the control unit judges the force direction of the handle, the force becomes larger, controls the motor to transmit forward, the assist wheel rotates forward, and the cleaning tool moves forward; The force becomes smaller, the control motor is reversely transmitted, the booster wheel rotates backward, and the cleaning tool moves backward.

The assist wheel 11 of this embodiment is located at the rear of the cleaning head, so that the center of gravity of the cleaning tool is more stable. The booster wheel 11 includes: a wheel 12 , a drive shaft 13 , a fixed cover 14 , and a fixed cover cover 15 ; The fixed cover 14 and the fixed cover cover 15 form a space for accommodating the wheel 12 . Fasteners are fixed between the fixed cover 14 and the cover 15 of the fixed cover, and are then fixed on the housing 500 at the bottom of the cleaning head by the fasteners.

This embodiment is equipped with a large-capacity clean water tank at the proximal end of the mop bar.

The cleaning head of the present disclosure includes a waste tank 211 , a squeeze roller 121 , a drum 111 , a brush assembly 131 and a dry trash box 141 arranged from front to back.

The present disclosure utilizes the "water and dust circulation" cleaning technology to realize the self-cleaning of the drum, and combines sweeping, mopping, washing and twisting together, which greatly facilitates users and can achieve very good cleaning effects.

The above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of the present disclosure. within the scope of protection.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art will still The technical solutions described in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.

Claims (10)

1. A cleaning head, characterized in that the cleaning head comprises:

a housing;

a drum rotatably mounted to the housing;

a ratchet wheel fixed at least one end of the drum;

the limiting block is fixed on the shell; wherein,

the limiting block prevents the ratchet wheel from reversely rotating.

2. The cleaner head of claim 1 wherein said roller includes a hard rubber shaft and a sponge layer surrounding said hard rubber shaft, said ratchet being secured to said hard rubber shaft.

3. The cleaning head of claim 1 further comprising a bearing by which the roller is mounted on the housing.

4. The cleaning head of claim 1 further comprising a spring, one end of the spring abutting the stopper and the other end abutting the housing.

5. The cleaning head of claim 3, further comprising a knob mounted between the bearing and the housing.

6. The cleaning head of claim 5, wherein the knob comprises:

a stub shaft for fixing the bearing;

one end of the short shaft extends radially to form a flange for fixing on the shell.

7. A cleaner head according to claim 6, wherein the flange is secured to the housing by a snap-fit.

8. A cleaner head according to claim 6, wherein the flange is secured to the housing by a screw thread.

9. The cleaning head of claim 6 wherein the knob further comprises a straight projection on the flange.

10. A cleaning implement comprising a cleaning head according to any of claims 1 to 9 and a handle hingedly connected to the cleaning head.

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