CN114652083A - Scrubbing device - Google Patents

Abstract

The invention belongs to the technical field of brushing and cleaning, and particularly relates to a brushing device. The invention aims to solve the problem that the shoe brushing of the brushing device in the prior art is still difficult. For the purpose, the brushing device comprises a shell and a brush head arranged outside the shell, wherein a brush head driving part and a liquid driving part are arranged in the shell, the brush head driving part comprises a brush head driving unit and a driving shaft, the brush head driving unit is connected with the driving shaft, the driving shaft extends out of the shell and then is connected with the brush head, and the shell is also provided with a liquid storage bin; the driving shaft is provided with a through hole along the axial direction thereof, and the liquid driving part is arranged to drive the washing liquid in the liquid storage bin to be transmitted to the brush head through the through hole; the end part of the through hole close to the brush head is also provided with a nozzle, and the size of the spray hole of the nozzle is smaller than that of the through hole of the driving shaft. The sudden change of the transmission pipe diameter can also instantaneously improve the liquid outlet pressure of the washing liquid, thereby realizing more uniform smearing.

Description

Scrubbing device

Technical Field

The invention belongs to the technical field of brushing and cleaning, and particularly relates to a brushing device.

Background

In daily life, scenes needing brushing are often encountered. For example, various shoes are one of the necessities of people's life nowadays, but obviously, various stains are easy to appear when the shoes are used more. Therefore, the shoe brushing becomes a scene that people often need to face in daily life. Frequent shoe brushing can not only keep the tidiness and the beauty of the shoes, but also prolong the service life of the shoes.

Most of brushing devices applied to shoe brushing at present still use a fixed brush head shoe brush, and the shoe brush still consumes more labor in the using process, so that the shoe brushing experience and efficiency are greatly influenced.

Accordingly, there is a need in the art for a new brushing apparatus that addresses the above-mentioned problems of the prior art.

Disclosure of Invention

In order to solve the problems in the prior art, namely to solve the problem that the shoe brushing of the brushing device in the prior art is still difficult, the invention provides the brushing device which is characterized by comprising a shell and a brush head arranged outside the shell, wherein a brush head driving part and a liquid driving part are arranged in the shell;

the driving shaft is provided with a through hole along the axial direction thereof, and the liquid driving part is arranged to drive the washing liquid in the liquid storage bin to be transmitted to the brush head through the through hole;

the end part of the through hole close to the brush head is also provided with a nozzle, and the size of a spray hole of the nozzle is smaller than that of the through hole of the driving shaft.

In a preferred embodiment of the above brushing device, the drive shaft is screwed to the nozzle.

In a preferred embodiment of the above brushing device, the head of the nozzle is provided with a bowl-shaped protrusion.

In a preferred technical solution of the above brushing device, the outer shell and the driving shaft enclose a liquid inlet chamber outside the driving shaft, the outer shell and the driving shaft are connected in a rotary sealing manner, and the through hole is communicated with the liquid inlet chamber;

the liquid driving part is arranged to drive the washing liquid in the liquid storage bin to enter the liquid inlet cavity and then be transmitted to the brush head through the through hole.

In the above-mentioned brushing device's preferred technical scheme, the feed liquor cavity is annular cavity around the feed liquor cavity, the cross section of shell encloses out the last side and the annular lateral surface of feed liquor cavity, correspondingly the drive shaft encloses out the annular medial surface of feed liquor cavity the downside of feed liquor cavity is sealed through rotary seal circle, in order to realize the shell with the rotatory sealing connection of drive shaft.

In above-mentioned brushing device's preferred technical scheme, the feed liquor cavity is annular cavity around the feed liquor cavity, the cross section of shell encloses out last side, annular lateral surface and the part downside of feed liquor cavity, correspondingly the drive shaft encloses out the annular medial surface of feed liquor cavity, another part downside of feed liquor cavity is sealed through rotary seal circle, in order to realize the shell with the rotatory sealing connection of drive shaft.

In a preferred embodiment of the above-described brush device, a rotary groove is further provided in the liquid inlet chamber, and the drive shaft is inserted into the rotary groove and can rotate in the rotary groove.

In a preferred technical solution of the above brushing device, the brushing device further includes a pressure sensing element, the pressure sensing element is in communication connection with the liquid driving portion and can feed back the force applied to the brush head to the liquid driving portion, and the liquid driving portion is configured to adjust the amount of liquid according to a pressure value transmitted by the pressure sensing element.

In a preferred technical solution of the above brushing device, the pressure sensing member is a pressure sensor, and the pressure sensor is disposed at a position close to one end of the brush head; and/or the pressure sensing piece is a current sensor which is arranged on a driving circuit of the brush head driving part; and/or the pressure sensing piece is a torsion sensor which is arranged at the output end of the brush head driving part.

In a preferred technical scheme of the brushing device, the brushing device is a handheld shoe brushing machine.

The brushing device comprises a shell and a brush head arranged outside the shell, wherein a brush head driving part and a liquid driving part are arranged in the shell, the brush head driving part comprises a brush head driving unit and a driving shaft, the brush head driving unit is connected with the driving shaft, the driving shaft extends out of the shell and then is connected with the brush head, and the shell is also provided with a liquid storage bin; the driving shaft is provided with a through hole along the axial direction thereof, and the liquid driving part is arranged to drive the washing liquid in the liquid storage bin to be transmitted to the brush head through the through hole; the end part of the through hole close to the brush head is also provided with a nozzle, and the size of the spray hole of the nozzle is smaller than that of the through hole of the driving shaft.

By the arrangement mode, if small sundries enter the washing device, the washing device firstly blocks the nozzle, so that the washing device cannot continuously operate, a user is forced to clean the washing device in time, the sundries are prevented from being accumulated, and the washing device is more convenient to clean as the sundries are accumulated to the nozzle. In addition, the sudden change of the transmission pipe diameter can also instantaneously improve the liquid outlet pressure of the washing liquid, and more uniform smearing is realized.

Drawings

The brushing apparatus of the present invention is described below with reference to the accompanying drawings. In the drawings:

FIG. 1 is an overall three-dimensional view of the brushing apparatus of the present invention;

FIG. 2 is a cross-sectional view of a brushing apparatus of the present invention;

FIG. 3 is a three-dimensional view of the interior of the brushing apparatus of the present invention with the upper housing and reservoir removed;

figure 4 is an assembly view of the brush head drive, liquid drive and brush head within the head cavity of the brushing device of the present invention;

FIG. 5 is a schematic view of the brush head of FIG. 4 shown removed;

FIG. 6 is a schematic structural view of the buckle shown in FIG. 5;

FIG. 7 is a schematic view of the washing and brushing device of the present invention with the reservoir removed from the housing;

FIG. 8 is an exploded view of the reservoir;

FIG. 9 is an assembled cross-sectional view of a check valve in the reservoir;

FIG. 10 is one embodiment of a geared connection of the brushhead drive unit to the drive shaft;

FIG. 11 is a three-dimensional view of FIG. 10;

FIG. 12 is a cross-sectional view of the inlet chamber enclosed by the housing and drive shaft;

FIG. 13 is a schematic diagram of two embodiments of the inlet chamber enclosed by the housing and drive shaft;

FIG. 14 is a first exemplary embodiment of a one-way vent valve structure featuring a pressure sensor mounting position, a motor position, a drain pipe layout, and a reservoir;

FIG. 15 is a second exemplary embodiment of a one-way vent valve structure featuring a pressure sensor mounting position, a motor position, a drain pipe layout, and a reservoir;

FIG. 16 shows a third exemplary embodiment of a one-way ventilation valve structure characterizing the installation position of the pressure sensor, the position of the motor, the layout of the liquid outlet pipes, and the liquid storage tank;

fig. 17 is a fourth exemplary embodiment of a one-way vent valve structure representing a mounting position of a pressure sensor, a position of a motor, a layout of a liquid outlet pipe, and a liquid storage tank.

List of reference numerals:

1. a housing; 11. a liquid inlet chamber; 111. a rotating tank; 112. a liquid inlet hole of the chamber; 12. a seal ring; 13. a head cavity; 14. a handle cavity; 15. an upper shell; 151. a sealing groove; 16. a lower case; 17. closing up; 18. a top rod;

2. a brush head; 21. a card slot; 211. a multi-prismatic hole; 22. a baffle plate;

3. a brush head driving part; 31. a brush head driving unit; 32. a drive shaft; 321. a through hole; 33. a nozzle; 331. a protrusion; 34. a drive assembly; 341. a first gear; 342. a second gear; 35. buckling; 351. a flexible cantilever; 352. a rotation stopping groove; 353. a polygonal column;

4. a liquid driving section;

5. a liquid storage bin; 51. a first liquid outlet pipe; 52. a second liquid outlet pipe; 53. a non-return valve; 531. a liquid leakage blocking piece; 5311. a weep hole; 532. a spring; 533. a top plug; 54. a liquid storage buffer structure; 55. a pressure stabilizing hole; 56. a one-way vent valve; 561. an elastic member; 562. a closing plate; 563. a spring;

6. a pressure sensing member;

7. an energy output part.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the description has been given by taking the driving assembly as the first gear and the second gear as an example, it is obvious that the present invention can add another transmission gear between the two gears to change the transmission ratio, or adopt a sprocket drive, a pulley drive, etc., as long as the power transmission of the brush head driving unit can be realized.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention provides a complete brushing device structure, which has a plurality of different invention points inside, and for the understanding, the invention can be completely developed from a whole to a local plurality of invention points.

The overall structure of the present invention will be explained first with reference to fig. 1 to 3 and 7.

The brushing device comprises a shell 1, wherein the shell 1 comprises a head cavity 13 and a handle cavity 14, and the brushing device also comprises a brush head 2, a brush head driving part 3, a liquid driving part 4, an energy output part 7 and a liquid storage bin 5; brush head drive division 3 and liquid drive division 4 set up in the lower part of head cavity 13, and stock solution storehouse 5 sets up on the upper portion of head cavity 13, and brush head drive division 3's output stretches out behind the head cavity 13 and is connected with brush head 2, and liquid drive division 4 sets up to the liquid that can drive in the stock solution storehouse 5 to brush head 2 department, and energy output 7 sets up in stalk portion cavity 14 to be connected with brush head drive division 3 and liquid drive division 4 respectively.

According to the connection mode, the invention firstly provides a novel layout of the brushing device on the whole layout, and the layout specifically comprises the following steps: if one of ordinary skill in the art designs a conventional brushing apparatus, since the brush head 2 is disposed outside the head cavity 13, the easiest layout would be to arrange the brush head driving unit 31 such as a motor and the like and the liquid driving part 4 such as a water pump and the like in the head cavity 13 to realize automatic output, and these apparatuses are inherently water-proof, and the space in the whole head cavity 13 is limited, and it is not easy to arrange the reservoir 5, and therefore, it is the most conventional practice to arrange the reservoir 5 in the handle cavity 14. However, this design is disadvantageous and potentially dangerous because the energy output 7 is typically designed within the handle cavity 14 due to the large space within the handle cavity 14 and the easy opening position for the user, which also creates a safety hazard because the energy output 7 is typically a battery-like component, is water-resistant and may also cause electrical leakage.

In order to avoid the situation, the invention provides a new layout mode, and referring to fig. 1, 2 and 7, the invention independently arranges the liquid storage bin 5 outside the head cavity 13 and the handle cavity 14, so that no liquid leakage occurs everywhere, which causes the parts to be unusable.

In addition, since the handle and the head are not coaxially arranged and the included angle is approximately vertical, the brush device is usually in the posture shown in fig. 1 when in use, the liquid storage bin 5 is arranged in the handle cavity 14, and the problem is that the distance for conveying the cleaning liquid to the brush head 2 is long, and the liquid driving part 4 firstly drives the cleaning liquid to the head cavity 13 horizontally and then drives the cleaning liquid to the brush head 2, so that the consumed energy is slightly increased. In the invention, the liquid storage bin 5 is arranged at the upper part of the head cavity 13, the brush head driving part 3 and the liquid driving part 4 are correspondingly arranged at the lower part of the head cavity 13, the output end of the brush head driving part 3 extends out of the head cavity 13 and then is connected with the brush head 2, the integral layout ensures that the distance from the liquid storage bin 5 to the brush head 2 is very short, the risk of leakage is reduced, in the using process, the liquid storage bin 5 and the brush head 2 are positioned at two ends in the vertical direction, and the cleaning solution can slowly reach the brush head 2 under the action of gravity, so that the energy consumption of the liquid driving part 4 is reduced, as the brushing device of the invention belongs to a small electric appliance, a large or high-density battery can not be equipped, namely more energy sources can not be borne, under the same battery energy source, the inventor carries out a continuous voyage test, the time consumed by using the battery equipped by the invention is prolonged by 30 minutes compared with the time of directly arranging the liquid storage bin 5 in the handle part, therefore, the increase of endurance is directly proved by the overall layout of the invention, and the beneficial effect is obvious.

The inventive point of the housing 1 of the invention is described below with reference to fig. 1 and 3.

The shell 1 is integrally divided into an upper shell 15 and a lower shell 16 along the length direction of the handle part, the upper shell 15 is fixedly connected with the lower shell 16, a circle of sealing groove 151 is arranged at the edge of the lower shell 16, and a sealing strip is embedded in the sealing groove 151, wherein the sealing groove 151 and the sealing strip can be arranged on the upper shell 15, or the upper shell 15 and the lower shell 16 are both arranged.

In the prior art, a shell of a head cavity 13 and a shell of a handle cavity 14 are usually arranged, and then a handle is screwed on a head, however, in the using process, the point with the most concentrated stress is just the joint of the head cavity 13 and the handle cavity 14, the strength of the joint is insufficient due to the arrangement, the damage of the joint is easy to occur, and the sealing is not convenient, besides, because parts are required to be installed in the head cavity 13 and the handle cavity 14, the two cavities still need to be continuously designed in a split mode, so that a brush head driving part 3, a liquid driving part 4 and the like can be installed, the split quantity of the shells is further increased, and the cost is increased.

The invention is designed to be split up and down, the opening is large at first, the internal parts can be installed very easily, the working hour is saved, the integral design ensures that the joint of the head cavity 13 and the handle cavity 14 is integrated, the strength is improved, the whole circle of sealing groove 151 is directly arranged on the upper shell 15/the lower shell 16, the sealing is more convenient, the effect is better, the whole shell 1 is only divided into two parts, the number of injection molds is reduced, and the production cost is also reduced.

Having developed the overall structural layout of the present invention, reference is now made to fig. 1, 2, 7 to 9, continuing with the development of several further inventive aspects of the tank 5.

As shown in the figure, the liquid storage bin 5 is detachably connected with the shell 1, a check valve 53 is further arranged on the liquid outlet of the liquid storage bin 5, the check valve 53 is set to enable the liquid outlet of the liquid storage bin 5 to be closed when the liquid storage bin 5 is separated from the shell 1, and the liquid outlet of the liquid storage bin 5 is opened when the liquid storage bin 5 is connected with the shell 1.

In a possible embodiment, as shown in fig. 7 to 9, the check valve 53 comprises a leakage blocking sheet 531, a spring 532 and a top plug 533, wherein the leakage blocking sheet 531 is provided with a leakage hole 5311, the leakage blocking sheet 531 is fixed at the liquid outlet of the liquid storage bin 5, the top plug 533 is connected with the leakage blocking sheet 531 through the spring 532, a closing opening 17 is further arranged on the liquid storage bin 5, and correspondingly, a top rod 18 matched with the top plug 533 is arranged on the housing 1.

When the liquid storage bin 5 is taken down from the upper shell 15, the state of the liquid storage bin 5 is as shown in fig. 9, the top plug 533 is propped against the closing-in 17 by the spring 532, so that liquid cannot leak from the liquid storage bin 5, and the liquid storage bin 5 can be independently taken down and then is replenished with washing liquid, thereby being more convenient to operate. When the liquid storage bin 5 is inserted into the upper shell 15, the top plug 533 will be jacked up by the top rod 18, so that the liquid storage bin 5 is communicated with the liquid driving part 4 again, and the normal use of the washing liquid is completed. The design does not need power supply in the whole process, and does not need electrical control in the whole process, so that a user does not have the possibility of misoperation, the whole structure also saves electric energy, and the cruising ability is prolonged.

Referring to fig. 9, a liquid storage and buffering structure 54 is further disposed at the liquid outlet below the liquid storage bin 5, and the liquid storage and buffering structure 54 may be a lengthened pipeline as shown in fig. 9, or may be a U-shaped pipeline (not shown, but the effect is the same).

In the process of using the brushing device, the position of the brushing device is not constant, the brushing device can be twisted greatly, if the stock of the washing liquid in the liquid storage bin 5 is less, the washing liquid in the liquid storage bin 5 is probably deviated to one side without a liquid outlet, and at the moment, the liquid driving part 4 cannot extract the washing liquid in the process of working again, so that a user considers that the washing liquid is exhausted, needs to add new washing liquid, and can increase the adding times of the washing liquid and reduce the user experience after long-term use. And through increasing stock solution buffer structure 54, when the surplus washing liquid in stock solution storehouse 5 is less, still can leave the washing liquid in the stock solution buffer structure 54 again, when brushing device got back to normal position, stock solution storehouse 5 can also supply the washing liquid in the stock solution buffer structure 54, use up completely until the washing liquid to do not hinder the normal use of user under the slope condition.

Referring to fig. 14 to 16, the present invention further includes a pressure stabilizing hole 55 above the reservoir 5, and a one-way ventilation valve 56 is provided in the pressure stabilizing hole 55.

The single air-permeable valve may be a valve, or may be an elastic member 561 as shown in fig. 14 and fig. 15, such as a rebound sheet, when the cleaning solution in the liquid storage compartment 5 is pumped to cause the internal air pressure to be higher than the external air pressure, the atmospheric pressures on both sides of the rebound sheet are different, so that the external air enters the liquid storage compartment 5, the pressure balance is maintained, the difficulty of liquid pumping of the liquid driving part 4 is reduced, and the energy consumption is reduced. When the washing liquid in the liquid storage bin 5 is not extracted, the elastic return sheet rebounds and blocks the pressure stabilizing hole 55.

Similar to the principle of the elastic element 561, as shown in fig. 16, the single-item vent valve may also be a closing plate 562 and a spring 563, both the closing plate 562 and the spring 563 are disposed inside the liquid storage chamber 5, and the closing plate 562 is fixedly connected to the liquid storage chamber 5 through the spring 563. The closing plate 562 is kept in a closed state by the elastic force of the spring 563, when the internal and external pressures are different, the closing plate 562 is pressed open, and when the internal and external pressures are the same, the closing plate 562 is pressed by the spring 563 to close the pressure stabilizing hole 55.

The above is developed for the structure of the liquid storage bin 5, and the following is developed in detail for several points of the structure of the liquid outlet part.

Referring to fig. 2, 12 and 13, in a possible embodiment, outside the driving shaft 32, the housing 1 further encloses a liquid inlet chamber 11 with the driving shaft 32, the housing 1 is connected with the driving shaft 32 in a rotating and sealing manner, the driving shaft 32 is provided with a through hole 321 along the axial direction, the through hole 321 is communicated with the liquid inlet chamber 11, and the liquid driving part 4 is arranged to drive the washing liquid in the liquid storage bin 5 to enter the liquid inlet chamber 11 and then to be transmitted to the brush head 2 through the through hole 321. The structure of fig. 12 corresponds to the diagram on the left side of fig. 13, the liquid inlet chamber 11 is an annular cavity, the cross section of the housing 1 surrounds the upper side and the annular outer side of the liquid inlet chamber around the liquid inlet chamber 11, the cross section of the housing 1 is in an L shape (inverted L shape) with upper and lower mirror images, correspondingly, the drive shaft surrounds the annular inner side of the liquid inlet chamber 11, the housing 1 and the drive shaft 32 together surround a C shape facing the brush head 2, and the lower side of the liquid inlet chamber 11 is sealed at the last opening through the rotary sealing ring 12, so that the housing 1 and the drive shaft 32 are connected in a rotary sealing manner.

The invention is provided with an independent liquid inlet chamber 11, so that liquid can be directly input into the through hole 321 of the rotating driving shaft 32 through a static liquid inlet pipe, and the structure of other sleeves is not added in the through hole 321, thereby realizing the scheme of central liquid outlet of the brushing device. The liquid flowing out from the center can be uniformly dispersed on the brush head 2 under the rotating and swinging of the brush head 2, the waste of the washing liquid is reduced, and the cleaning effect is obviously improved.

Further, a rotary groove 111 is provided in the liquid inlet chamber 11, and the drive shaft 32 is inserted into the rotary groove 111 and can rotate in the rotary groove 111. A bearing is also provided between the drive shaft 32 and the rotation groove 111. A convex chamber liquid inlet hole 112 is also arranged on the shell 1 enclosing the liquid inlet chamber 11.

The design of the rotation slot 111 makes the rotation of the driving shaft 32 more stable, and the bearing is increased. A convex cavity liquid inlet hole 112 is formed in the shell 1 of the liquid inlet cavity 11, and the convex structure can be better combined with the first liquid outlet pipe 51 of the liquid storage bin 5 to prevent liquid leakage.

It should be noted that, the trough edge of the rotary trough 111 can be designed differently according to different design ideas, if the washing liquid in the liquid inlet chamber 11 is supposed to enter the through hole 321 as a main part, the trough edge of the rotary trough 111 is hollow, so that the washing liquid in the liquid inlet chamber 11 can stably flow in, if the washing liquid entering the liquid inlet hole 112 of the chamber is supposed to be directly pumped into the through hole 321, the trough edge is supposed to be designed without hollow, so that most of the liquid can directly enter the through hole 321, and a small part of the liquid flows into the liquid inlet chamber 11, after the liquid inlet chamber 11 is full, all the entering liquid can directly flow out from the through hole 321, the design can reduce the pressure applied to the sealing ring 12, and the washing liquid is less prone to leak to the second gear 342 below. The inventor practice proves that the two inventive concepts can be realized, when hollow-out exists, the liquid inlet chamber 11 can be used as a place for buffering the second liquid, the washing liquid is prevented from being supplemented when not used up, and the supplementing times are reduced; when the liquid inlet chamber 11 is not hollowed out, the liquid pressure borne by the liquid inlet chamber is reduced, so that the sealing is easier, the requirement on the sealing ring 12 is lower, and a person skilled in the art can flexibly select a specific structure according to the requirement.

The cross-section of the housing 1 is L-shaped as described above, and another embodiment is described below with reference to the right-hand diagram of fig. 13.

As shown in fig. 13, around the liquid inlet chamber 11, the liquid inlet chamber 11 is an annular cavity, around the liquid inlet chamber 11, the cross section of the housing 1 encloses the upper side, the annular outer side and a part of the lower side of the liquid inlet chamber 11, the cross section of the housing 1 is entirely C-shaped or G-shaped, accordingly, the drive shaft 32 encloses the annular inner side of the liquid inlet chamber 11, and the other part of the lower side of the liquid inlet chamber 11 is sealed by the rotary seal ring 12, so as to realize the rotary seal connection between the housing 1 and the drive shaft 32.

This arrangement reduces the partial area of the seal and facilitates sealing, but accordingly the volume of the inlet chamber 11 is slightly reduced compared to the left-hand embodiment of fig. 13.

The above described intake scheme for the brushhead drive portion 3 is expanded, and with continued reference to fig. 12, the particular design on the drive shaft 32 is expanded.

In a possible embodiment, as shown in fig. 12, a nozzle 33 is further installed at the end of the through hole 321 near the brush head 2, the size of the spray hole of the nozzle 33 is smaller than that of the through hole 321 of the driving shaft 32, preferably, the driving shaft 32 is connected with the nozzle 33 by screw threads, and the head of the nozzle 33 is provided with a bowl-shaped projection 331.

According to the invention, on the basis that the through hole 321 is arranged on the driving shaft 32, the nozzle 33 is additionally arranged at the end part of the through hole 321, and the size of the spray hole of the nozzle 33 is smaller than that of the through hole 321, so that if small sundries enter, the nozzle 33 is blocked firstly, the brushing device cannot continue to operate, a user is forced to clean in time, the accumulation of the sundries is avoided, and the sundries are accumulated to the nozzle 33, so that the cleaning is more convenient. In addition, the sudden change of the transmission pipe diameter can also instantaneously improve the liquid outlet pressure of the washing liquid, and more uniform smearing is realized. If the liquid is directly sprayed from the through hole 321 or the spray hole of the nozzle 33, the liquid cannot be sprayed in a column shape under the action of tension, so the inventor also sets the head of the nozzle 33 as the bowl-shaped protrusion 331, thereby solving the physical phenomenon that the spray is umbrella-shaped due to the left and right of the tension, and the whole spray liquid is in a column shape.

The above description is made in detail with respect to the liquid discharge manner of the drive shaft 32 of the brush head drive section 3, and the following description is made in detail with respect to the specific configuration of how the brush head drive section 3 rotates the drive shaft 32.

The above-mentioned solution for discharging the liquid from the through hole 321 of the driving shaft 32 is based on the fact that the central liquid discharging can be realized, and in order to realize the central liquid discharging, the motor of the brush head driving unit 31 needs to be arranged non-coaxially, i.e. eccentrically, with respect to the driving shaft 32, therefore, the inventor also specifically designs an eccentric arrangement matched with the central liquid discharging solution, as shown in fig. 4, 5, 10 and 11, the brush head driving unit 31 is connected with the driving shaft 32 through the driving assembly 34, the driving assembly 34 at least includes a first gear 341 and a second gear 342, the first gear 341 is arranged on the driving unit output shaft, and the second gear 342 is arranged on the driving shaft 32. Through the design of the gear, the brush head driving unit 31 is not limited to be just above the driving shaft 32, but the installation position can be reasonably adjusted according to the internal space of the head cavity, so that the design is more flexible, the structure is more compact, and the whole volume of the brushing device is smaller. Of course, the driving unit may also be provided with several additional sets of gears between the first gear 341 and the second gear 342 for adjustment of the installation position of the brush head driving unit 31 and adjustment of the rotation speed ratio, as shown in the drawing.

While the drive assembly 34 has been described as being geared, it will be appreciated that similar arrangements are possible, provided that the brushhead drive unit 31 and drive shaft 32 are arranged eccentrically, for example, the drive assembly 34 includes a first sprocket and a second sprocket, the first sprocket and the second sprocket being connected by a chain, the first sprocket being disposed on the drive unit output shaft and the second sprocket being disposed on the drive shaft 32; alternatively, the drive assembly 34 includes a first pulley and a second pulley, the first pulley and the second pulley being connected by a belt, the first pulley being disposed on the drive unit output shaft, and the second pulley being disposed on the drive shaft 32. The two expansion modes can achieve the same effect, and the skilled person can flexibly select the expansion modes according to the needs.

The internal structure of the brushing device has been developed in detail above, and the following is a detailed development of the specific structure of the brush head 2 and several points of the invention involved in how the brush head 2 is mounted.

In a possible embodiment, as shown in fig. 5, 6 and 14, a separate snap 35 is fixedly sleeved on the driving shaft 32 extending out of the housing 1, a snap groove 21 is correspondingly formed on the brush head 2, and the snap 35 is detachably connected with the snap groove 21 on the brush head 2, so that the driving shaft 32 is detachably connected with the brush head 2. Further, the buckle 35 includes a plurality of elastic cantilevers 351, a rotation stopping groove 352 is formed between adjacent elastic cantilevers 351, and accordingly, a rotation stopping protrusion (not shown) is disposed in the slot 21, and after the rotation stopping protrusion is inserted into the rotation stopping groove 352, the buckle 35 is clamped with the slot 21. The buckle 35 is further provided with a polygon prism 353, a polygon prism hole 211 is correspondingly arranged in the clamping groove 21, and after the polygon prism 353 is inserted into the polygon prism hole 211, the buckle 35 is clamped with the clamping groove 21. A baffle plate 22 is fixedly arranged on the outer surface of the brush head 2.

Draw-in groove 21 and buckle 35's design can make brush head 2 dismantle in a flexible way, in addition, sets up elastic cantilever 351 and polygon prism 353 on buckle 35, sets up in draw-in groove 21 correspondingly and ends and change protruding and polygon prism hole 211, can make brush head 2 behind the card festival, can't realize for the rotation of drive shaft 32, and then can realize the more stable installation of brush head 2, avoids appearing the condition that brush head 2 skidded. Still be provided with baffle 22 on the surface of brush head 2 is fixed, can prevent that liquid from splashing to the user, promotes user's use and experiences, has also reduced the waste of washing liquid.

The overall structure of the brushing device is analyzed in detail, and the brushing device is further improved according to the using process of the brushing device, and the improved points are further developed.

As shown in fig. 14 to 17, in a possible embodiment, the brushing device further includes a pressure sensing element 6, the pressure sensing element 6 is connected to the liquid driving portion 4 in a communication manner and can feed back the force applied to the brush head 2 to the liquid driving portion 4, the liquid driving portion 4 outputs the liquid to the brush head 2 through a first liquid outlet pipe 51, and the liquid driving portion 4 is configured to adjust the amount of the liquid according to the pressure value transmitted by the pressure sensing element 6.

In a possible embodiment, the pressure sensing member 6 is a pressure sensor disposed at a position close to one end of the brush head 2, or the pressure sensing member 6 is a current sensor disposed in a driving circuit of the brush head driving part 3, or the pressure sensing member 6 is a torque sensor disposed at an output end of the brush head driving part 3. Here, the position of the pressure sensing member 6 may be set at a suitable position according to the actual structure, for example, fig. 14 and 16 are set on the second gear 342, fig. 15 and 17 are set on the driving shaft 32, and the like.

Brushing device can be according to the feedback of pressure-sensitive part 6, automatically through 4 output washing liquids of liquid drive portion, when the spot of clearance vamp, need not interrupt operation and paint the washing liquid again, and to the spot that dirty degree is different, can be nimble through applying the power of different dynamics to brush head 2, can be according to the washing liquid of the power output different volume of corresponding dynamics, even wash stubborn spot, also need not manual multiple operation blowout washing liquid, improved the experience and the efficiency of brushing shoes.

When the pressure sensing part 6 is a pressure sensor, the understanding is easy, when the pressure sensing part 6 is a current sensor, the current sensor is arranged on a driving circuit of the brush head driving part 3, when the acting force between the brush head 2 and the vamp is increased, the friction force between the brush head 2 and the vamp is also increased, the current of the corresponding brush head driving part 3 is also increased, and the acting force change condition between the brush head 2 and the vamp can be judged according to the change of the current detected by the current sensor; the torsion sensor is arranged at the output end of the brush head driving part 3, when the acting force between the brush head 2 and the vamp is increased, the friction force between the brush head 2 and the vamp is increased, the torsion of the corresponding brush head driving part 3 is also increased, and the change of the acting force between the brush head 2 and the vamp can be judged according to the change of the torsion detected by the torsion sensor.

In this embodiment, when in actual use, the brushing device can be set to be used by full-automatic liquid spraying. When the brushing device is used in the whole process, the washing liquid is automatically sprayed out completely according to the induction feedback of the pressure induction piece 6, and an operator only needs to control the shoe brushing force and the action position of the brush head 2. The operator starts the brush head driving part 3 to drive the brush head 2 to rotate, and when the brush head 2 is not in contact with the vamp and the brush head 2 is just in contact with the vamp but the acting force between the brush head 2 and the vamp is small, the liquid driving part 4 does not spray the cleaning liquid. If the cleaning liquid is required to be discharged to a less dirty area, a constant pressing force can be applied to the brush head 2, and the liquid driving unit 4 can discharge a small amount of cleaning liquid. In the dirty region, a large pressing force can be applied to the brush head 2, and the corresponding liquid driving unit 4 outputs a large amount of cleaning liquid. When the operator observes that the amount of dirt after brushing is reduced, the pressing force applied to the brush head 2 is subconsciously reduced, and the amount of the output washing liquid is reduced by the corresponding liquid driving portion 4. The whole-course operation is convenient and fast, the operation habit of operators in normal shoe brushing is met, and the brushing device in the embodiment does not need to be specially noticed and adapted.

In this embodiment, the brushing device may also be configured to be used by semi-automatic liquid spraying. That is, before brushing shoes, an operator firstly uses other tools to paint the washing liquid on the vamps by himself or uses the brushing device in the embodiment to manually spray the washing liquid, and then when brushing shoes, the operator can apply pressing forces with different forces to the brush heads 2 according to the dirt degree of the vamps, so that the washing liquid with different quantities can be output through the liquid driving parts 4. The brushing device used by semi-automatic liquid spraying is suitable for occasions with a large number of shoes, such as shoes in shoe washing shops or at home with a large population and accumulated for a certain time. When the number of the shoes is large, if the liquid storage bin 5 of the brushing device is used for spraying liquid for each shoe, and if the number of the brushing devices is small, the amount of the washing liquid in the liquid storage bin 5 is insufficient. If a sufficient number of brushing devices are prepared, the cost is high and it is not necessary. An operator can smear the washing liquid on the whole vamp in advance by using the washing liquid, and then can mainly scrub stubborn stains by the brush head 2 through the pressure sensing piece 6 according to the stain conditions at different positions when the vamp is specifically brushed. In general, only a local area on the vamp has stubborn stains, so that only a small amount of brushing devices are needed, and the washing liquid in the liquid storage bin 5 of the brushing devices can be used for washing a large amount of shoes.

In another possible embodiment, as shown in fig. 14, the liquid driving part 4 is further connected with a second liquid outlet pipe 52, and the second liquid outlet pipe 52 directly outputs the liquid to the brush head 2 after penetrating out of the shell 1. An opening and closing valve (not shown) is also provided on first effluent pipe 51 and/or second effluent pipe 52.

The liquid driving part 4 can output liquid to the brush head 2 through the first liquid outlet pipe 51 and the second liquid outlet pipe 52 at the same time, and the second liquid outlet pipe 52 directly outputs the liquid to the brush head 2 after penetrating out of the shell 1. Because the washing liquid that comes out through-hole 321 need swing and break up evenly, this quantity that just makes through-hole 321 can the spun washing liquid is limited, in order to compensate the not enough problem of liquid quantity when washing serious dirty shoes, use through the collocation combination of two kinds of schemes, can make the supply of washing liquid reach the most reasonable state, can not cause the waste, also can not make user's latency overlength, when the liquid measure demand does not reach the limit of through-hole 321, can paint liquid through-hole 321 alone in order to realize more even scheme, when the liquid measure demand of user exceeds the limit of through-hole 321, then can assist and carry out the liquid measure with second drain pipe 52 and compensate, correspondingly can set up one or several on first drain pipe 51 and/or second drain pipe 52 and carry out above-mentioned operation.

While the present invention has been described in detail with reference to the preferred embodiments thereof, it is to be understood that the brushing apparatus of the present invention may be a hand-held shoe brushing machine, as well as a conventional shoe brushing machine or other laundry treating machine designed in accordance with the principles of the present invention.

It should be noted that the above-mentioned embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention, and those skilled in the art can modify the above-mentioned structure so that the present invention can be applied to more specific application scenarios without departing from the principle of the present invention.

For example, in an alternative embodiment, the non-return valve 53 may be a solenoid valve, etc., as long as the on-off of the reservoir 5 can be realized, without departing from the principle of the present invention, and therefore, the present invention is within the protection scope.

For example, in another alternative embodiment, the center line of the output end of the brush head driving part 3 may be in the same line with the center line of the brush head 2, and accordingly only the second outlet pipe 52 is left as shown in fig. 17, without departing from the principle of the present invention, and therefore, all of them will fall within the scope of the present invention.

For example, in another alternative embodiment, the reservoir 5 could obviously be formed integrally with the housing 1, without departing from the principle of the invention, and therefore falling within the scope of the invention.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (10)

1. A brushing device is characterized by comprising a shell and a brush head arranged outside the shell, wherein a brush head driving part and a liquid driving part are arranged in the shell, the brush head driving part comprises a brush head driving unit and a driving shaft, the brush head driving unit is connected with the driving shaft, the driving shaft extends out of the shell and then is connected with the brush head, and the shell is also provided with a liquid storage bin;

the driving shaft is provided with a through hole along the axial direction thereof, and the liquid driving part is arranged to drive the washing liquid in the liquid storage bin to be transmitted to the brush head through the through hole;

and a nozzle is also arranged at the end part of the through hole close to the brush head, and the size of a spray hole of the nozzle is smaller than that of the through hole of the driving shaft.

2. The brushing apparatus of claim 1 wherein said drive shaft is threadably connected to said nozzle.

3. The scrub device of claim 1, wherein the head of the nozzle is provided with a bowl-shaped protrusion.

4. The brushing apparatus according to claim 1, wherein the housing further defines an inlet chamber with the driving shaft at an outer side of the driving shaft, the housing is connected to the driving shaft in a rotary sealing manner, and the through hole is communicated with the inlet chamber;

the liquid driving part is arranged to drive the washing liquid in the liquid storage bin to enter the liquid inlet cavity and then be transmitted to the brush head through the through hole.

5. The brushing device according to claim 4, wherein the liquid inlet chamber is an annular cavity, the cross section of the housing encloses an upper side and an annular outer side of the liquid inlet chamber around the liquid inlet chamber, correspondingly, the drive shaft encloses an annular inner side of the liquid inlet chamber, and the lower side of the liquid inlet chamber is sealed by a rotary sealing ring, so as to realize the rotary sealing connection between the housing and the drive shaft.

6. The scrubbing apparatus as defined in claim 4, wherein said inlet chamber is an annular cavity, and said cross-section of said housing encloses an upper side, an annular outer side and a partial lower side of said inlet chamber around said inlet chamber, and said drive shaft encloses an annular inner side of said inlet chamber, and another partial lower side of said inlet chamber is sealed by a rotary seal ring, so as to realize a rotary seal connection between said housing and said drive shaft.

7. The brushing apparatus according to claim 4, wherein a rotary groove is further provided in the liquid inlet chamber, and the driving shaft is inserted into the rotary groove and can rotate in the rotary groove.

8. The brushing device of claim 1, further comprising a pressure sensing element communicatively coupled to the fluid driving portion and configured to feed back a force applied to the brush head to the fluid driving portion, wherein the fluid driving portion is configured to adjust a volume of the fluid based on a pressure value transmitted by the pressure sensing element.

9. The brushing apparatus of claim 8, wherein said pressure sensing element is a pressure sensor disposed proximate an end of said brush head; and/or the like and/or,

the pressure sensing piece is a current sensor, and the current sensor is arranged on a driving circuit of the brush head driving part; and/or the like and/or,

the pressure sensing piece is a torque sensor, and the torque sensor is arranged at the output end of the brush head driving part.

10. The brushing arrangement of claim 1, wherein the brushing arrangement is a hand-held shoe brushing machine.

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