CN116058708A

CN116058708A - Liquid outlet piece, rolling brush and cleaning device

Info

Publication number: CN116058708A
Application number: CN202210010609.1A
Authority: CN
Inventors: 王跃旦; 方剑强; 郑建明
Original assignee: Ningbo Fujia Industrial Co Ltd
Current assignee: Ningbo Fujia Industrial Co Ltd
Priority date: 2021-11-04
Filing date: 2022-01-06
Publication date: 2023-05-05
Also published as: CN116058711A; CN217118301U; CN116058710A; CN217118298U; CN116058718A; CN217827688U; CN217610780U; CN116058709A; CN217118297U; CN116058714A; CN217118300U; CN217827689U; CN217610778U; CN116058712A; CN116058713A; CN116058715A; CN217118299U; CN217610779U; CN217118302U; CN116058717A

Abstract

The present disclosure proposes a liquid outlet member, from a liquid inlet to the direction of the other end of a liquid outlet flow channel, the size of each liquid outlet hole gradually becoming larger along the axis direction; the liquid outlet piece is provided, the liquid outlet piece is arranged from the liquid inlet to the direction of the other end of the liquid outlet flow channel, and the interval between every two adjacent liquid outlet holes is gradually reduced along the axis direction; the liquid outlet piece adopts one end of the liquid outlet flow passage to feed liquid, and is beneficial to more uniform wetting degree of the cleaning part of the rotary cylinder body, so that a favorable precondition is provided for reducing the volume of the rolling brush; the rolling brush can further improve the energy utilization efficiency and the response performance; a cleaning device is also provided, comprising the rolling brush.

Description

Liquid outlet piece, rolling brush and cleaning device

Technical Field

The invention relates to the technical fields of rolling brush electric mops, floor washing machines, dust collectors, floor sweeping machines and the like, in particular to a liquid outlet piece, a rolling brush and a cleaning device.

Background

In a cleaning device such as a roller brush electric mop, a floor cleaner, a vacuum cleaner, or a sweeper, the roller brush is one of important technical means for improving cleaning performance, and the roller brush is generally operated in such a manner that the roller brush is brought into rotational contact with a surface to be cleaned, and the surface to be cleaned is cleaned by the contact.

In order to improve the cleaning performance, there are proposed a scheme of spraying a cleaning liquid such as a detergent, water, etc. before and after the rolling brush, so that the cleaning performance is improved by wetting the rolling brush or wetting the surface to be cleaned, and in addition, in order to further improve the cleaning performance, there are proposed a scheme of heating the cleaning liquid, that is, using a hot cleaning liquid to improve the cleaning performance, but there are many different schemes of how the hot cleaning liquid is generated and supplied at present, which can be roughly divided into two kinds: the cleaning liquid in the liquid storage tank is heated by adopting electric heat or chemical energy, the liquid storage tank is connected with the rolling brush through a pipeline, the conveyed cleaning liquid is sprayed on the rolling brush or the surface to be cleaned, two types of cleaning liquid are sprayed on the rolling brush, one type of cleaning liquid is sprayed on the upper side outside the rolling brush, and the other type of cleaning liquid is sprayed from the cleaning part of the rolling brush after being split from the interior of the rolling brush, so that the scheme has the advantages of long conveying distance, high energy consumption and slow response, and in addition, the problem of high-pressure and high-heat storage after the liquid storage tank is heated is related to how to ensure safety is a big problem; the other proposal is specifically proposed by the applicant, namely, the cleaning solution is directly heated in the rolling brush, and the heated rolling brush indirectly heats the cleaning solution after encountering the cleaning solution, so that the hot cleaning effect is obtained.

The applicant has therefore continued intensive studies, by means of the applicant's diligent efforts, who has proposed a roller brush provided with a heating portion which is in contact with and/or clearance fit with the outer periphery of the rotary cylinder, for heating the cleaning portion of the rotary cylinder and/or the cleaning liquid supplied to the cleaning portion, which structure can further improve the energy utilization efficiency and the response performance, in which, for the case of having a plurality of liquid outlet holes, each of which is provided in series along the liquid outlet flow passage, the applicant has proposed a problem that, since the overall volume of the roller brush of the cleaning device is undesirably large, on the one hand, the weight is increased, and on the other hand, the requirement for working space is high, i.e., the space cannot be made small after the volume becomes large, for cleaning, the applicant has preferably set to one-end liquid inlet, so that, when liquid is fed from one-end liquid inlet, more cleaning liquid is discharged per unit time, and relatively less cleaning liquid is discharged per unit time from the liquid outlet hole on the side that is relatively far from the liquid inlet end, so that the liquid outlet holes are made to wet the rotary cylinder uniformly, and, on the applicant has proposed a problem that the applicant has passed through the cleaning member unevenly.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides a liquid outlet piece which adopts one of two ends of a liquid outlet channel to feed liquid, and is beneficial to more uniform wetting degree of a cleaning part of a rotary cylinder body, so that an advantageous precondition is provided for reducing the volume of a rolling brush; the rolling brush can further improve the energy utilization efficiency and the response performance; a cleaning device is also provided, comprising the rolling brush.

Compared with the prior art, the invention provides a liquid outlet piece, which is provided with a body extending along the axial direction of a rotary cylinder body, wherein the body is provided with a liquid outlet channel arranged along the axial direction, the starting point and the end point of the liquid outlet channel along the axial direction are respectively used as two ends of the liquid outlet channel, one side of the body, which is positioned on the rotary cylinder body, is provided with a plurality of liquid outlet holes which are sequentially arranged along the liquid outlet channel, each liquid outlet hole is respectively communicated with the liquid outlet channel, one of the two ends is used as a liquid inlet, the liquid outlet hole extends from the liquid inlet to the other end of the liquid outlet channel, and the size of each liquid outlet hole gradually increases along the axial direction.

After adopting the structure, compared with the prior art, the invention has the following advantages: the liquid outlet holes are gradually enlarged along the axial direction of the rotary cylinder body from the liquid inlet of the liquid outlet flow channel to the other end of the liquid outlet flow channel, so that when water is discharged, the water pressure on the side close to the liquid inlet is large, the flow speed of the liquid outlet holes on the side close to the liquid inlet is high, when the liquid outlet holes on the side close to the liquid inlet are small, the flow cross section is small, the flow speed is high, but the water yield is smaller than that of the original structure, the flow speed of the liquid outlet holes at a slightly far point is relatively slower, but the water yield is larger than that of the original structure due to the fact that the holes are larger, the wetting degree of the cleaning part of the rotary cylinder body is uniform based on the scheme, and the cleaning part of the rotary cylinder body is uniformly wetted when the technical scheme of one end liquid inlet at two ends of the liquid outlet flow channel is adopted, so that an advantageous precondition is provided for reducing the volume of the rolling brush.

Compared with the prior art, the invention provides a liquid outlet piece, which is provided with a body extending along the axial direction of a rotary cylinder body, wherein the body is provided with a liquid outlet channel arranged along the axial direction, the starting point and the end point of the liquid outlet channel along the axial direction are respectively used as two ends of the liquid outlet channel, one side of the body, which is positioned on the rotary cylinder body, is provided with a plurality of liquid outlet holes sequentially arranged along the liquid outlet channel, each liquid outlet hole is respectively communicated with the liquid outlet channel, one of the two ends is used as a liquid inlet, the direction from the liquid inlet to the other end of the liquid outlet channel, and the interval between every two adjacent liquid outlet holes is gradually reduced along the axial direction.

After adopting the structure, compared with the prior art, the invention has the following advantages: because from the inlet of liquid runner to the direction of the other end of liquid runner, the interval between each adjacent liquid outlet hole is along the axis direction diminish gradually, so the liquid outlet hole that is close to inlet one side distributes sparsely, and the liquid outlet hole that is far away from inlet one side distributes more densely, so the clean portion of rotatory barrel just can be comparatively even by moist degree, therefore when adopting the technical scheme of one of the both ends inlet of liquid runner, still be favorable to comparatively even to the moist degree of clean portion of rotatory barrel to provide an favourable precondition for reducing the volume of round brush.

Preferably, one of the two ends of the body is provided with a liquid inlet connector, and the liquid inlet connector is communicated with the liquid outlet flow channel.

Preferably, the body is provided with a labyrinth flow passage having at least one flow passage arranged in the axial direction, which serves as a liquid outlet flow passage.

Preferably, the last flow channel of the labyrinth flow channel is used as a liquid outlet flow channel.

Preferably, the heating element is also included, and the heating element is connected with the body in a heat conduction way.

Preferably, the heating element is arranged on the back surface of the body.

Preferably, the back of the body is provided with a mounting groove, and the heating element is arranged in the mounting groove.

Preferably, the heating element is arranged on the back surface of the body in a sintering manner.

Preferably, the back surface of the body is provided with a heat insulating layer for conducting heat from the heating element to the main body.

Preferably, the body is provided with a liquid inlet connector and a main body extending along the axial direction of the rotary cylinder, a flow channel extending along the axial direction of the rotary cylinder is arranged in the main body, the liquid inlet connector is connected with one end of the main body, the liquid inlet connector is communicated with the flow channel, and the liquid inlet connector is used for being connected with the liquid supply assembly.

Preferably, the device further comprises a bracket, and the main body and the bracket are distributed and connected in the front-rear direction.

Preferably, the bracket is provided with a concave cavity matched with the main body, the upper edge of the concave cavity is in sleeve joint fit with the upper edge of the main body along the axial direction of the rotary cylinder body through a first sleeve joint structure, and the lower edge of the concave cavity is in sleeve joint fit with the lower edge of the main body along the axial direction of the rotary cylinder body through a second sleeve joint structure.

Preferably, a heating element is arranged between the back surface of the main body and the bracket.

Preferably, the support is made of a heat insulating material, and the support serves as a heat insulating layer of the heating element for conducting heat of the heating element to the main body.

Preferably, the flow channels in the main body are multiple, and at least one of the two ends of the main body is provided with a transition groove for communicating with adjacent flow channels.

Preferably, a sealing member is arranged at one end of the main body with the transition groove, and the transition flow passage is formed by matching the sealing member with the transition groove.

Preferably, the device further comprises a protruding part which can be sleeved and matched with the transition groove.

Preferably, the device further comprises a support, wherein the main body and the support are distributed and connected in the front-rear direction, the liquid inlet component is arranged on one side of the support and the other end of the support is respectively provided with the protruding part, and the protruding part at the other end of the support can be used as the other end of the main body and is fixed at the other end of the support.

Preferably, the liquid inlet connector is arranged on one side of the support and the other end of the support respectively and is provided with a protruding part serving as a sealing element, and a part of the protruding part of the liquid inlet connector on one side of the support is also used as a plug of the terminal end of the liquid outlet channel.

Preferably, the body adopts an arc-shaped structure arranged along the circumferential direction of the rotary cylinder body, and a labyrinth runner is arranged in the body and extends back and forth along the axial direction of the rotary cylinder body from one end of the arc-shaped structure.

Preferably, the body is provided with a recess extending in the axial direction of the rotary cylinder on one side of the rotary cylinder, and a liquid outlet hole is provided in the recess.

Preferably, the liquid outlet hole is located on a side surface of the concave portion on the side opposite to the rotation direction of the rotary cylinder.

Compared with the prior art, the invention provides a rolling brush which comprises a rotary cylinder body, wherein a heating part powered by electric energy is arranged on the periphery of the rotary cylinder body, the heating part is provided with a liquid outlet piece, the heating part is in contact with and/or clearance fit with the periphery of the rotary cylinder body, and the heating part is used for heating a cleaning part of the rotary cylinder body and/or cleaning liquid supplied to the cleaning part.

Preferably, the liquid outlet member serves as a heating section at the same time.

After adopting the structure, compared with the prior art, the invention has the following advantages:

The invention is characterized in that the periphery of the rotary cylinder body is provided with a heating part powered by electric energy, the heating part is in contact with and/or clearance fit with the periphery of the rotary cylinder body, the heating part is used for heating the cleaning part of the rotary cylinder body and/or cleaning liquid supplied to the cleaning part, so that heat generated by the heating part can be transferred to the cleaning part and/or the cleaning liquid supplied to the cleaning part as soon as possible and is effectively used immediately after being transferred, and the heating of the cleaning liquid supplied to the cleaning part refers to the two cases, wherein one of the two cases is that the wetted cleaning part (for example, wetted by a liquid outlet piece) heats the cleaning liquid in the cleaning part when passing through the heating part, and the other is that the cleaning liquid is heated when falling onto the cleaning part, and/or the cleaning liquid is heated before falling onto the cleaning part, for example, the cleaning liquid is supplied by the liquid outlet piece. After the design, the wet state of the cleaning part is relatively uniform, and the heated cleaning liquid falls onto the cleaning part immediately to participate in the next cleaning work, so that the heat utilization rate is very high and little waste is caused. In addition, the liquid outlet piece can be made smaller, which is beneficial to controlling the whole volume of the rolling brush.

Since the heating part is attached to and/or clearance-fitted with the outer periphery of the rotary cylinder, the heating part is used for heating the cleaning part of the rotary cylinder and/or the cleaning liquid supplied to the cleaning part, so that less heat is required to reach a certain temperature during heating, the response performance can be greatly improved, that is, after the heating part is opened, in the invention, the cleaning part of the rotary cylinder and/or the cleaning liquid supplied to the cleaning part can reach a required working temperature quickly, and thus the response performance can be greatly improved.

In summary, the invention can further improve the energy utilization efficiency and the response performance.

Compared with the prior art, the invention also provides a cleaning device which comprises the rolling brush.

After adopting the structure, compared with the prior art, the invention has the following advantages: by adopting the cleaning device of the rolling brush, better cleaning performance is achieved on the premise of greatly improving the energy utilization efficiency and the response performance, and longer endurance is achieved by using the same battery and the same working temperature.

Drawings

Fig. 1 is a perspective view of a roll brush.

Fig. 2 is a schematic perspective view of fig. 1 with the rotating cylinder removed.

Fig. 3 is a schematic perspective view of fig. 2 with the top cover further removed.

Fig. 4 is a perspective view of a heating portion assembly.

Fig. 5 is a perspective view of fig. 4 with the heat conductive member removed.

Fig. 6 is a schematic perspective view of fig. 5 with the heating element further removed.

FIG. 7 is a schematic cross-sectional view of a V-shaped labyrinth heating flow path.

Fig. 8 is a perspective view of another roll brush.

Fig. 9 is a perspective view of fig. 8 with the top cover removed.

Fig. 10 is a perspective view of the liquid outlet member of fig. 9 with the roller brush holder further removed.

FIG. 11 is a schematic cross-sectional view showing mainly the positional relationship of the liquid outlet member and the rotary cylinder.

Fig. 12 is a schematic cross-sectional perspective view of the liquid outlet member.

Fig. 13 is a schematic perspective view of the liquid outlet member.

Fig. 14 is an exploded view of the liquid outlet member.

Fig. 15 is a perspective view mainly showing the back surface of the main body.

Fig. 16 is a schematic view of a forward projection of a labyrinth flow passage provided in the body.

Fig. 17 is a front view of the body of the tapping member.

Fig. 18 is a front view of the body of another liquid outlet member.

The reference numerals indicate that the 1-rolling brush holder, the 2-upper cover, the 3-rotary cylinder, the 4-heat conducting piece, the 5-heating piece, the 6-transition water tank, the 7-liquid outlet hole, the 8-communication hole, the 9-first opening, the 10-second opening, the 11-liquid inlet end, the 12-dirt scraping plate, the 13-suction opening, the 14-liquid outlet flow passage, the 15-liquid inlet, the 16-liquid inlet joint, the 17-main body, the 18-bracket, the 19-bulge, the 20-transition groove, the 21-bulge, the 22-concave part, the 23-liquid outlet, the 24-screw hole, the 25-screw hole and the 26-water pump.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the invention. The embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

The present invention is described in further detail below:

the present disclosure provides a cleaning device comprising the roll brush as shown in fig. 1.

The cleaning device, such as a rolling brush electric mop, a suction head of a dust collector, a floor sweeping machine, a floor washing machine and the like, is generally household or small-sized, is also a characteristic of the rolling brush, has smaller overall structure and size, and can be suitable for the small-sized cleaning device.

The present disclosure exemplifies a roll brush comprising one rotary cylinder 3, and of course, the rotary cylinder 3 may be plural, such as two, three, etc., but regardless of the plural, the present invention also indicates that at least one rotary cylinder 3 is provided with the heating part of the present invention when having plural rotary cylinders 3, and the like, and the roll brush can be adaptively adjusted or simply duplicated with reference to one scheme. When the heating portions are required to be provided for the plurality of rotary cylinders 3, it is possible to skillfully provide the heating portions between the adjacent two rotary cylinders 3, that is, to provide the adjacent two rotary cylinders 3 with one heating portion in common, but the heating portions at this time are provided on both sides thereof to be able to transfer heat to the corresponding rotary cylinder 3, for example, the heating members 5 are provided on both sides, or the transition water tank 6 transfers heat to the corresponding rotary cylinder 3 on both sides after the transition water tank 6 is heated.

The cleaning part of the rotary cylinder 3 is generally the outermost layer, the thickness is determined according to the cleaning performance or the requirement of the surface to be cleaned, and by adopting the scheme of the invention, the existing rotary cylinder 3 can be used without modifying the original rotary cylinder 3 structure, and the replacement and use cost of the rotary cylinder 3 for users is hardly increased.

The cleaning liquid may be used in combination with other devices, such as spraying water on the surface to be cleaned, and the heated cleaning portion may achieve a better cleaning effect when wetted, where the object to be cleaned is the cleaning portion, and for example, the cleaning device is provided with other liquid supplying structures, such as a liquid outlet member of the disclosure, the liquid supplying structures spray the cleaning liquid on the cleaning portion, and the cleaning portion with the cleaning liquid is heated and used, if the surface to be cleaned is dry, but under the action of the heated and wetted cleaning portion, a better cleaning effect may be achieved, for example, the solution including the labyrinth flow channel and/or the transition water tank described in the following embodiments may be used in any combination, i.e. the cleaning liquid may be sprayed and supplied by the liquid supplying structures, or the cleaning liquid may be supplied by the liquid supplying structures, and the transition water tank may be simultaneously supplied by the liquid supplying structures, and so on.

The term "water" or "water-related" as used in this disclosure is not meant to refer to only one instance of water, but rather is commonly referred to as a clean water tank, where water refers to a cleaning liquid, which may be water alone, a mixture of water and a cleaning agent, or a mixture of water and a disinfectant.

As shown in fig. 11 to 17, the present disclosure provides a liquid outlet member, including a body extending along an axial direction of a rotary cylinder 3, the body is provided with a liquid outlet channel 14 disposed along the axial direction, a start point and an end point of the liquid outlet channel 14 along the axial direction are respectively used as two ends of the liquid outlet channel 14, one side of the rotary cylinder 3 is provided with a plurality of liquid outlet holes 7 disposed along the liquid outlet channel 14 in sequence, each liquid outlet hole 7 is respectively communicated with the liquid outlet channel 14, one of the two ends is used as a liquid inlet 15, a direction from the liquid inlet 15 to the other end of the liquid outlet channel 14, and a size of each liquid outlet hole 7 is gradually increased along the axial direction.

The present disclosure also provides a liquid outlet member, which is characterized in that the interval between each adjacent liquid outlet holes 7 is gradually smaller along the axis direction, as compared with the liquid outlet member described above, as shown in fig. 18.

In some embodiments, the liquid outlet channel 14 is preferably a linear channel, and the linear channel may be parallel to the axial direction of the rotary cylinder 3 or may be inclined to the axial direction of the rotary cylinder 3. The expression "the body is provided with the liquid outlet passage 14 arranged in the axial direction" is not required to define the liquid outlet passage 14 to be arranged in parallel with the axial direction, but is required to cover the cleaning portion of the rotary cylinder 3, so that the liquid outlet passage 14 is required to be capable of delivering the liquid to the liquid outlet holes 7, and thus the expression "the body is provided with the liquid outlet passage 14 arranged in the axial direction" is provided.

Because of the manufacturing cost and difficulty, generally, the size of the liquid outlet channel 14 is generally uniformly arranged along the axis direction of the rotary cylinder 3, if the liquid outlet channel 14 is to be made into different sizes along the axis direction of the rotary cylinder 3, the difficulty is great on one hand, and the cost is high on the other hand, so in order to achieve the purpose that the wetting degree of the cleaning part is relatively uniform, the two technical routes of the liquid outlet member are beneficial to simplifying the structure of the liquid outlet channel 14, that is, the technical case that the size of the liquid outlet channel 14 is generally uniformly arranged along the axis direction of the rotary cylinder 3 is suitable for the two technical routes of the liquid outlet member, in other words, the liquid outlet member of the disclosure does not need to make special arrangement of the size of the liquid outlet channel 14.

In some embodiments, in order to facilitate production and assembly, as shown in fig. 11, 12, 13 and 14, the liquid outlet member is designed to have a liquid inlet connector 16, a bracket 18, and a main body 17 extending along the axial direction of the rotary cylinder 3, where the main body 17 and the bracket 18 are distributed and connected in the front-back direction, a flow channel extending along the axial direction of the rotary cylinder 3 is provided in the main body 17, the liquid inlet connector 16 is connected with one end of the main body 17, the liquid inlet connector 16 is communicated with the flow channel, and the liquid inlet connector 16 is used for connecting a liquid supply assembly. The side of the liquid inlet joint 16 at one side of the bracket 18 is provided with a liquid outlet 23, and the communication between the liquid inlet joint 16 and the flow passage means that the liquid outlet 23 is communicated with the inlet of the flow passage. By adopting the bracket 18, the thickness of the main body 17 is further reduced due to the support of the bracket 18, so that the energy utilization rate is further improved.

In some embodiments, the assembly sequence of the liquid outlet member may be: the main body 17 is inserted along one end of the bracket 18, so that the main body 17 and the bracket 18 are sleeved along the axial direction of the rotary cylinder 3, then the liquid inlet connector 16 is connected to one end of the bracket 18 and/or the liquid inlet connector 16 is connected to one end of the main body 17, for example, as shown in fig. 14, the liquid inlet connector 16 is provided with two screw through holes 24, and correspondingly, one end of the main body 17 is also provided with two screw holes 25, the screw is used for connecting and fixing the liquid inlet connector 16 to one end of the main body 17 through the screw through holes 24 and the screw holes 25, and meanwhile, the side surface of the liquid inlet connector 16, which is positioned on one side of the bracket 18, seals the opening of one end of the bracket 18. The side of the liquid inlet joint 16, which is located at one side of the bracket 18, is provided with a sealing gasket, and the side of the liquid inlet joint 16, which is located at one side of the bracket 18, is tightly pressed and fixed with the end face of one end of the bracket 18 through the sealing gasket. The other end of the bracket 18 can be provided with a screw through hole 24, correspondingly, the other end of the main body 17 is also provided with a screw hole 25, and the screw is used for better connecting and fixing the other end of the main body 17 and the other end of the bracket 18 together through the screw through hole 24 and the screw hole 25. As shown in fig. 12 and 14, the bracket 18 has a concave cavity, the upper edge and the lower edge of the concave cavity are respectively sleeved and matched with the upper edge and the lower edge of the main body 17 through concave-convex sleeving structures, in this example, the concave grooves of the concave-convex sleeving structures are arranged on the upper edge and the lower edge of the main body 17, the convex 19 of the concave-convex sleeving structures are correspondingly arranged on the upper edge and the lower edge of the concave cavity, and the structural design is very convenient for assembly, and in addition, the main body 17 is supported more reliably.

In some embodiments, the flow channels in the main body 17 are not one but a plurality of flow channels, so that labyrinth flow channels are formed, as shown in fig. 11, 12 and 16, the flow channels in the main body 17 are four, the flow channels are arranged in parallel to each other to form a serpentine labyrinth flow channel, and the last flow channel is used as a water outlet flow channel. In order to simplify the manufacture, the two ends of the main body 17 are provided with transition grooves 20, the transition grooves 20 are used for communicating adjacent flow channels, for sealing the transition grooves 20, for example, a sealing element can be arranged at each end of the main body 17, for example, a liquid inlet joint 16 is positioned at one side of the support 18, each other end of the support 18 is provided with a protruding part 21 serving as a sealing element, the transition flow channels are formed by matching the protruding parts 21 with the transition grooves 20, the protruding parts 21 at the other end of the support 18 can also serve as the other end of the main body 17 and the support 18 after being sleeved with each other, the other end of the main body 17 is fixed at the other end of the support 18, and additionally, a part of the protruding parts 21 of the liquid inlet joint 16 can also serve as plugs at the terminal ends of the liquid outlet flow channels 14, so that the manufacture is greatly facilitated.

In some embodiments, as shown in fig. 11, 12 and 16, the body adopts an arc-shaped structure arranged along the circumferential direction of the rotary cylinder 3, and a labyrinth flow passage is arranged in the body, and the labyrinth flow passage extends from one end of the arc-shaped structure to and fro along the axial direction of the rotary cylinder, for example, the serpentine labyrinth flow passage is formed.

In some embodiments, as shown in fig. 15, the tapping member further comprises a heating member 5, which heating member 5 is in heat-conductive connection with the main body 17, in particular, the back surface of the main body 17 is provided with said heating member 5, which on the one hand contributes to protecting the heating member 5 and on the other hand simplifies the production and manufacture.

In some embodiments, the back of the main body 17 is provided with a mounting groove, and the heating element 5 is arranged in the mounting groove, so that on one hand, the overall thickness of the assembly formed by connecting the main body 17 with the heating element 5 is reduced, and on the other hand, a certain package is formed on the heating element 5, so that heat is conducted to the main body 17 more.

In some embodiments, as shown in fig. 15, the heating element 5 is disposed on the back of the main body 17 by sintering, for example, an electric heating material is coated on the back of the main body 17 and sintered, so that the heating element 5 is more firmly combined with the main body 17 and is formed into a whole, thus, after design, the loss of heat conduction is less, and the overall thickness of the assembly formed by connecting the main body 17 and the heating element 5 is smaller.

In some embodiments, the back of the body 17 is provided with an insulating layer for conducting heat from the heating element 5 to the body 17. Thus being beneficial to saving energy, improving the utilization rate of heat energy and reducing waste.

In some embodiments, the back of the main body 17 may be provided with a heat insulating layer alone, or the bracket 18 may be used as a heat insulating layer of the heating element 5, and the bracket 18 may be made of a heat insulating material, so that the structure can be further simplified. However, if a separate insulating layer is used, the material of the bracket 18 may be conveniently selected, and the material is not limited to the heat insulating material, but the assembly is relatively performed in one step, that is, the separate insulating layer needs to be provided.

The liquid outlet member, the roller brush of the present disclosure are further illustrated by the following examples:

embodiment one:

the utility model discloses a round brush includes rotatory barrel 3, and the circumference of rotatory barrel 3 periphery is equipped with the heating portion, and the heating portion pastes with rotatory barrel 3 periphery, and this heating portion is used for the clean portion of heating rotatory barrel 3. Like this, the heat that the heating portion produced is direct to be in contact with the cleaning portion and transmit for the cleaning portion, and the distance of transmission heat is zero to the cleaning portion is heated the back, is used for cleaning promptly, and availability factor is high, has reduced thermal waste, has promoted thermal effective utilization ratio.

The heating part includes a heat conduction member 4 and a heating member 5, the heat conduction member 4 is disposed around the circumference of the outer circumference of the rotary cylinder 3, and the heating member 5 is connected with the heat conduction member 4. Through the design, heat can be conveniently transferred through the heat conducting piece 4, on the one hand, the heating piece 5 relates to the power supply problem, and the structure of the heating piece 5 can be conveniently arranged according to the design, on the other hand, through the heat conducting piece 4, the heat transfer can be simple and efficient more comprehensively, thereby being favorable to guaranteeing the heated area of the cleaning part, simultaneously being favorable to reducing the installation quantity of the heating piece 5, and avoiding increasing excessive weight.

The novel rotary brush further comprises a rolling brush frame 1, the rolling brush frame 1 is provided with a first opening 9 for detachably mounting the rotary cylinder body 3, and a heating part is arranged in the first opening 9. By the design, the replacement of the rotary cylinder body 3 is not affected, and after the rotary cylinder body 3 is replaced, the space between the heating part and the rotary cylinder body 3 does not need to be adjusted any more, namely, the rotary cylinder body can be directly used after being replaced, so that the rotary cylinder body is greatly convenient for users to use.

Preferably, as shown in fig. 1, 2 and 3, the brush holder 1 is detachably connected with the upper cover 2, the heating part is located at the lower side of the upper cover 2, the heating part can be seen after the upper cover 2 is removed, and the rotary cylinder 3 can be removed in the up-down direction for cleaning or replacement after the upper cover 2 is removed, that is, the upper cover 2 is simultaneously used as a limiting mounting piece of the rotary cylinder 3. The design is greatly convenient for manufacturing the invention and is convenient for daily users.

The heating body of the heating part is arranged on one side of the heating part, which is used for being attached to the periphery of the rotary cylinder body 3.

The heating body comprises a continuous heat conducting piece 4 and a heating piece 5, wherein the continuous heat conducting piece 4 and the heating piece 5 are arranged along the axial direction, the heat conducting piece 4 is arranged on the outer side, the heating piece 5 is arranged on the inner side, and the heat conducting piece 4 isolates the heating piece 5 from the rotary cylinder body 3. In this way, on the one hand, the arrangement and the installation quantity of the heating elements 5 are simplified, and on the other hand, the heat conducting elements 4 isolate the heating elements 5 from the rotary cylinder 3, so that the heating elements 5 are protected, and the service life is prolonged.

The heating portions are continuously provided in the axial direction of the rotary cylinder 3. By the design, the cleaning part can be heated uniformly, and cleaning performance is facilitated.

And the heat insulation structure is used for enabling most of heat generated by the heating part to be transferred to the cleaning part. The heat-insulating structure is, for example, a heat-insulating layer provided at the rear and around the heating element 5, so that the heat of the heating element 5 is mainly transferred to the front side, i.e., mainly transferred to the heat-conducting element 4, and the heat-conducting element 4 transfers the heat to the cleaning portion. The design is beneficial to reducing waste and improving the heat utilization rate.

One side of the heating portion facing the rotary cylinder 3 includes an arc structure disposed around the rotary direction of the rotary cylinder 3, in this example, the heat conducting member 4 is disposed in an arc structure, that is, the heat conducting member 4 is a concave arc plate. After the design, concave arc matches with the cleaning part outer peripheral face, is favorable to the smooth and easy rotation of cleaning part on the one hand, and on the other hand is favorable to concave arc and cleaning part good laminating to promote heat transfer efficiency.

In this example, the transition water tank 6 is not provided, and the above structure can be shown with reference to fig. 1, 2, 4, and 5, and other structures of the transition water tank 6 can be omitted in fig. 2, 4, and 5 to form this example.

In this case, a liquid outlet member may be used as the heat conducting member 4, so that both liquid outlet and heating are achieved.

Embodiment two:

the first embodiment is different from the first embodiment in that the heating portion is in clearance fit with the outer periphery of the rotary cylinder 3, and the technical effect of this arrangement is that on one hand, the rotation resistance of the rotary cylinder 3 is reduced, on the other hand, the abrasion is reduced, and on the other hand, the squeezing of the cleaning portion is reduced, which is beneficial to avoiding the loss of cleaning liquid caused by the squeezing of the cleaning liquid in the cleaning portion.

Embodiment III:

compared with the first embodiment, the three-phase heating device is different in that the heating part is in contact with the periphery of the rotary cylinder body 3 and is in clearance fit, and the heating device has the advantages of providing great flexibility, flexibly setting the contact and the clearance fit according to the characteristics of the cleaning part, and optimizing the structure.

Embodiment four:

the fourth embodiment is different from the first, second and third embodiments in that a transition water tank 6 is added, and a heating part is used for heating the cleaning liquid supplied to the cleaning part, and the heating part is preferably clearance-fitted with the outer circumference of the rotary cylinder 3.

When the transition water tank 6 is added, the structure is as follows: the circumference of rotatory barrel 3 periphery is equipped with the heating portion, and heating portion and rotatory barrel 3 periphery clearance fit, and the heating portion includes transition water tank 6, and the heating element 5 of heating portion is arranged in transition water tank 6, and transition water tank 6 is used for being connected with the water source, and the heating element 5 is arranged in heating the cleaning liquid in the transition water tank 6, and the cleaning liquid flow direction cleaning portion after the heating, like this, the cleaning portion is also heated by the heat that cleaning liquid brought.

The transition tank 6 adopts a small capacity which is smaller than the capacity of the water source.

Preferably, the small volume is within six times, including six times, the volume of the cleaning liquid supply flow per unit time. The supply amount of the cleaning liquid per unit time is set according to the cleaning requirement, and in general, it is advantageous to achieve or exceed the supply amount for better cleaning performance, but if the capacity of the transition water tank 6 is not limited, it is also important that the capacity of the transition water tank 6 is small, as in the present invention, "the transition water tank 6 employs a small capacity, which is smaller than the capacity of the water source. ". After the design, the required amount for cleaning and using can be better connected, the energy consumption is balanced, and the control program is more beneficial to controlling the opening and closing of the heating element 5, because the larger the capacity of the transition water tank 6 is, the more difficult the stability control on the working temperature is in the dynamic use process, the smaller the capacity of the transition water tank 6 is, and the supply amount can be maintained and supplied, so that the balance point at the moment is more beneficial to balancing the three elements of energy consumption, temperature stability control and cleaning performance.

A labyrinth heating flow passage is arranged in the transition water tank 6 and is used for enabling the heating element 5 to rapidly heat the cleaning liquid flowing through in a short time. In this example, as shown in fig. 7, the labyrinth heating flow path of the transition water tank 6 is provided as a V-shaped labyrinth heating flow path, and the entire outer shape of the transition water tank 6 is also substantially V-shaped in order to better match the rotary cylinder 3.

In this example, as shown in fig. 7, the flow direction of the cleaning liquid in the V-shaped labyrinth heating flow channel is that the cleaning liquid flows in from the right upper end of the V-shaped labyrinth heating flow channel and then flows out from the left upper end of the V-shaped labyrinth heating flow channel along the V-shape, so that after the design, on one hand, the flowing distance is lengthened, so that the cleaning liquid has more time to absorb the heat generated by the heating element 5, and on the other hand, the cleaning liquid flows from bottom to top on the outlet side, and because the heat flows more easily upwards, the cleaning liquid is enabled to better take away the heat generated by the heating element 5. In addition, because the flow channels on the left side and the right side are relatively close due to the V shape, when the heating element 5 heats, the cleaning liquid in the flow channel from the right side to the top is preheated, and when the cleaning liquid flows from the bottom to the top at the outlet side, the cleaning liquid can be heated to a higher temperature more quickly, and the heating time is shortened. In addition, the adoption of the V-shaped labyrinth heating flow passage makes the whole structure very compact. If it is necessary to further shorten the heating time, the heating element 5 may be provided in the flow path from the right side to the top.

After the design, the method has the following technical effects: firstly, the cleaning liquid in the transition water tank 6 is used for the cleaning part after being heated, long-distance conveying is not needed, waste is greatly reduced, in addition, potential safety hazards caused by long-distance conveying are avoided, secondly, the aim of the invention is that the amount of the cleaning liquid in the transition water tank 6 is not set to be large, then the heat generated by the heating element 5 is enough to heat the cleaning liquid in the transition water tank 6 in a short time, so that the cleaning liquid can quickly enter a normal working state, the working response is very fast, and thirdly, when the working is stopped, the cleaning liquid remained in the transition water tank 6 is not much, so that the waste of heat is little, in addition, when the working is stopped, the working time is set to be 10 minutes, for example, the heating element 5 is actively closed in advance when the working stop time of 10 minutes is reached, so that the finally heated cleaning liquid is also used for cleaning the surface to be cleaned, and the heated cleaning liquid cannot be used up; of course, other measures can be taken, such as switching off the heating element 5 in advance, but letting the rotating drum 3 continue to rotate, while the hot cleaning liquid remaining in the transition water tank 6 continues to be supplied, so that the rotating drum 3 can thereby clean itself, thereby utilizing this part of the heat of the cleaning liquid remaining in the transition water tank 6, so that this measure can also be taken to further reduce waste.

Fifth embodiment:

as shown in fig. 2, 3, 4, 5, 6 and 7, the arrows in fig. 7 indicate the flow direction of the cleaning liquid, and the fifth embodiment is different from the fourth embodiment in that not only the transition water tank 6 is added, but also the cleaning portion of the rotary cylinder 3 is heated by the heating portion, in which case, specifically, the heating member 5 is disposed around the circumference of the periphery of the rotary cylinder 3, the heating member 5 further includes a heat conducting member 4 while heating the cleaning liquid, and the heat conducting member 4 is disposed around the circumference of the periphery of the rotary cylinder 3, and the heating member 5 heats the cleaning portion of the rotary cylinder 3 by the heat conducting member 4 while heating the cleaning liquid.

The design has the technical effects that: firstly, the heat generated in the front-rear direction of the heating element 5 can be applied to the cleaning part more quickly, namely the front side of the heating element 5 is the cleaning part, and the rear side of the heating element 5 is the cleaning liquid, so that the heat generated in the front-rear direction of the heating element 5 is more effectively utilized, because the front side of the heating element 5 directly heats the cleaning part, the cleaning liquid in the transition water tank 6 does not need to carry heat to heat the cleaning part, namely one heat conversion is reduced, and the front side of the heating element 5 directly heats the cleaning part has the advantages of improving the structural compactness, and the rear side of the heating element 5 can not directly heat the cleaning part, so that the cleaning part preheated by the front side of the heating element 5 is carried by the cleaning liquid in the transition water tank 6, the heat generated by the heating element 5 is more effectively utilized, and the heating time is very favorable to be shortened, so that the working temperature can be reached in a short period; secondly, while achieving the purpose that heat is more efficiently utilized, it is advantageous to further improve the structural compactness, thereby further reducing the thickness dimension of the transition water tank 6; thirdly, when designing the V-arrangement maze heating runner, only set up heating piece 5 in the runner of V-arrangement maze heating runner left side from bottom to top just can realize faster heating's purpose, and need not all set up heating piece 5 in the left and right sides runner of V-arrangement maze heating runner for overall structure is more optimized, simultaneously, still avoided all setting up the heat waste that heating piece 5 caused in the flow of the left and right sides of V-arrangement maze heating runner like this, because if set up heating piece 5 in the runner of V-arrangement maze heating runner right side top-down, then increase the heat transfer of this heating piece 5 to the right side necessarily, again because the speed that receives cleaning liquid absorption heat, can't absorb in time take away, thereby cause heat loss, and above-mentioned scheme has avoided this kind of situation.

In this example, as shown in fig. 5 and 6, a second opening 10 is disposed on a side of the transition water tank 6 facing the rotary cylinder 3, and the second opening 10 is exposed by the heating element 5, so that the blocking between the transition water tank and the heat conducting element 4 is reduced, and the heat transfer of the heating element 5 through the heat conducting element 4 is facilitated. The design can make heating member 5 be close to clean portion more, also makes transition water tank 6 be close to clean portion more simultaneously to make the clean liquid after heating can be carried clean portion by the shorter distance, also make clean portion after heating meet with clean liquid after heating more fast, thereby furthest reduces the loss of heat, makes the less heating power of input, just can keep clean portion's temperature better, that is to say further improves the energy utilization, further promotes response performance simultaneously.

In this example, as shown in fig. 4, 5 and 6, in order to more uniformly output the heated cleaning liquid, a plurality of liquid outlet holes 7 are sequentially provided along the axial direction of the rotary cylinder 3, and the liquid outlet holes 7 communicate with the outlet ends of the V-shaped labyrinth heating flow passages via a plurality of communication holes 8, and therefore, the plurality of liquid outlet holes 7 are located on the upper side of the heat conductive member 4. The liquid inlet end 11 of the V-shaped labyrinth heating runner is communicated with a water source, namely a cleaning liquid tank through a pipeline. A water pump may be provided to increase the delivery pressure of the cleaning liquid. It is also possible to switch off the heating member 5 in time by detecting the water level of the cleaning liquid tank and/or whether the cleaning liquid is present in the pipe, thereby achieving higher safety performance such as dry burning prevention.

In the case of simultaneous heating, other solutions are also possible, for example, the heating element 5 heats the cleaning part of the rotary cylinder 3 directly by the heating element 5 while heating the cleaning liquid, and for example, the heating element 5 heats the cleaning part of the rotary cylinder 3 by the heated transition water tank 6 since the transition water tank 6 heats the cleaning liquid after heating.

Example six:

the sixth embodiment is different from the fifth embodiment in that the floor washing machine further comprises a dirt scraping plate 12, the dirt scraping plate 12 scrapes dirt on the cleaning part, namely, the dirt on the cleaning part is scraped off together with the dirt, and then the dirt is sucked away by a suction port 13 near the dirt scraping plate 12, which is also an operating characteristic of the floor washing machine. In the sixth embodiment, the transition water tank 6 is located at the rear side of the scraping plate 12 in the rotation circumferential direction of the rotation cylinder 3, that is, the cleaning portion scrapes the dirt first, and then the transition water tank 6 supplies heat including heat of the cleaning portion passing through the transition water tank 6 and heat brought by the heated cleaning liquid falling onto the cleaning portion from the liquid outlet hole 7, so that the heat can be utilized more effectively without wasting the heat at the contaminated portion (the portion of the contaminated cleaning portion) of the cleaning portion, because the heat is consumed after the cleaning portion cleans the surface to be cleaned, and if the dirty water is not removed in time, the portion of the cleaning portion where the dirty water is located (the portion of the contaminated cleaning portion) will reabsorb the heat, and the portion of the contaminated cleaning portion is unfavorable for cleaning, so that by the above-mentioned design, the heat is used more effectively, and the waste is further reduced.

Embodiment seven:

the seventh embodiment is different from the above embodiments in that a plurality of heating portions may be provided, each heating portion is provided along the axial direction of the rotary cylinder 3, the axial length of each heating portion is approximately equal to that of the cleaning portion, and each heating portion is further provided along Zhou Xiangyi of the rotary cylinder 3, that is, compared with the structure of one heating portion shown in fig. 2, the seventh embodiment further comprises at least one heating portion in sequence along the circumferential direction of the rotary cylinder 3, so as to form a structure of two heating portions, and the seventh embodiment is beneficial to achieving the required temperature more quickly, and if required, the higher temperature can be achieved, but the relative structure is larger, the energy consumption is higher, which is beyond that required for the ordinary cleaning, and the seventh embodiment is more suitable for some occasions requiring the higher temperature.

Example eight:

embodiment eight differs from the above embodiments in that it further comprises a temperature sensor for detecting the temperature of the heating portion and/or the temperature of the cleaning liquid supplied to the cleaning portion and/or the temperature of the surface to be cleaned.

By setting the temperature sensor, the technical effects that can be obtained are: on one hand, a structural basis is provided for more intelligently controlling heating, and the control program is combined, so that the method is helpful for further fine control of energy consumption, and on the other hand, the safety can be further improved, and the safety is further ensured.

Example nine:

as shown in fig. 11 to 17, the transition water tank 6 is omitted in this example, the liquid outlet member is used as the heating part at the same time, the cleaning liquid directly flows through the liquid outlet member, the liquid outlet member realizes heating of the cleaning liquid, meanwhile, the whole volume of the heating part is obviously reduced, and liquid is fed from one end, the liquid inlet end 11 at the middle position above as shown in fig. 3 is not needed, the foregoing measures are beneficial to reducing the volume of the rolling brush or making more space for installing other structures, for example, as shown in fig. 9, the water pump 26 can be integrated in the rolling brush due to more installation space being vacated, and in this example, the water pump 26 is positioned at the side where the liquid inlet joint 16 is positioned.

In this example, the liquid outlet member not only heats the cleaning liquid, but also can be used for directly heating the cleaning part because the liquid outlet member is self-conductive, that is, the liquid outlet member is also used as the heat conducting member 4, for example, the main body 17 is used as the heat conducting member 4, so that the temperature rise of the cleaning part is faster. The design is quick in response, and the cleaning part is directly heated by the heat through heating the cleaning liquid and the liquid outlet piece, so that the heat is mainly used for the cleaning part, and the energy utilization rate is high.

Example ten:

in contrast to the ninth embodiment, the liquid outlet member has a recess 22 extending in the axial direction of the rotary cylinder 3 on the side of the rotary cylinder 3, and a liquid outlet hole 7 is provided in the recess 22. After the design, the liquid outlet hole 7 is not easy to enter dirt, and the liquid outlet is kept smooth.

In some embodiments, as shown in fig. 12, the rotation arrow indicates the rotation direction of the rotary cylinder 3, and the liquid outlet hole 7 is located on the side of the recess 22 on the side opposite to the rotation direction of the rotary cylinder 3. After the design, the anti-clogging performance is more excellent, and in addition, as the heat conducting piece 4 is attached to the surface of the cleaning part, the cleaning part is not tightly extruded at the liquid outlet hole 7 after the design, so that the liquid outlet is more smooth.

For each embodiment, the heating element 5 adopts an electric heating structure, such as PTC heating, film heating, printing heating body, etc., and any heating element 5 suitable for the present invention can be applied to the present invention.

In understanding the present invention, the above-described structure may be understood together with other embodiments/drawings, if necessary, and will not be described herein.

The foregoing description is only illustrative of the present invention and is therefore intended to cover all such modifications and changes in form, details, and materials as fall within the true spirit and scope of the invention.

Claims

1. The utility model provides a liquid spare, has the body that extends along the axis direction of rotatory barrel, this body is equipped with the liquid flow channel that sets up along the axis direction, the start point and the terminal point along the axis direction of liquid flow channel are respectively as the both ends of liquid flow channel, this body is located one side of rotatory barrel be equipped with along liquid flow channel a plurality of liquid holes that set up in proper order, each liquid hole communicates with liquid flow channel respectively, its characterized in that, one of both ends in as the inlet, from the direction of the other end of inlet to liquid flow channel, the size of each liquid hole is followed the axis direction grow gradually.

2. The utility model provides a liquid spare, has the body that extends along the axis direction of rotatory barrel, this body is equipped with the liquid flow channel that sets up along the axis direction, the start point and the terminal point along the axis direction of liquid flow channel are respectively as the both ends of liquid flow channel, this body is located one side of rotatory barrel be equipped with along liquid flow channel a plurality of liquid holes that set up in proper order, each liquid hole communicates with liquid flow channel respectively, its characterized in that, one of both ends in as the inlet, from the direction of the other end of inlet to liquid flow channel, the interval between each adjacent liquid hole is followed the axis direction taper.

3. A tapping member according to claim 1 or 2, wherein one of the two ends of the body is provided with a tapping fitting, which tapping fitting communicates with the tapping channel.

4. A tapping member according to claim 1 or 2, wherein the body is provided with a labyrinth flow channel having at least one flow channel arranged in the direction of the axis, which flow channel serves as tapping flow channel.

5. The tapping member according to claim 4, wherein the last one of the labyrinth of flow passages is used as the tapping flow passage.

6. The tapping member of claim 1 or 2, further comprising a heating member in thermally conductive connection with the body.

7. The tapping member of claim 6, wherein the heating element is provided on the back side of the body.

8. The tapping member of claim 7, wherein the back surface of the body is provided with a mounting slot in which the heating member is disposed.

9. The tapping member of claim 6, wherein the heating element is sintered at the back of the body.

10. The tapping member according to claim 6, wherein the back surface of the body is provided with a heat insulating layer for conducting heat from the heating member to the main body.

11. The liquid outlet member according to claim 1 or 2, wherein the body has a liquid inlet connector and a main body extending along the axial direction of the rotary cylinder, a flow passage extending along the axial direction of the rotary cylinder is provided in the main body, the liquid inlet connector is connected to one end of the main body, the liquid inlet connector is communicated with the flow passage, and the liquid inlet connector is used for connecting with the liquid supply assembly.

12. The tapping fitting of claim 11 further comprising a bracket, the body being disposed and connected to the bracket in a fore-aft direction.

13. The tapping member according to claim 12, wherein the support has a cavity cooperating with the main body, an upper edge of the cavity being in socket-joint with an upper edge of the main body in an axial direction of the rotary cylinder via the first socket structure, and a lower edge of the cavity being in socket-joint with a lower edge of the main body in an axial direction of the rotary cylinder via the second socket structure.

14. The tapping member of claim 12, wherein a heating element is provided between the back surface of the body and the support.

15. The tapping member of claim 14, wherein the support is made of a thermally insulating material, the support acting as a thermally insulating layer for the heating member for conducting heat from the heating member to the body.

16. The tapping member of claim 12, wherein there are a plurality of flow channels in the body, at least one of the ends of the body being provided with a transition slot for communicating with an adjacent flow channel.

17. The tapping member of claim 16, wherein a sealing means is provided at the end of the body having the transition groove, and wherein the sealing means cooperates with the transition groove to form a transition flow path.

18. The tapping member of claim 17, further comprising a projection that is matingly engageable with the transition groove.

19. The liquid outlet member as claimed in claim 18, further comprising a bracket, wherein the main body is connected to the bracket in a front-rear direction, the liquid inlet assembly is provided with the protruding portion at one side of the bracket and at the other end of the bracket, and the protruding portion at the other end of the bracket is further used as the other end of the main body and is fixed at the other end of the bracket.

20. The tapping fitting of claim 18 wherein the tapping fitting is provided with a projection on one side of the bracket and the other end of the bracket each for use as a seal, and wherein a portion of the projection on one side of the bracket is also used as a plug for the terminal end of the tapping channel.

21. A liquid outlet member according to claim 1 or 2, wherein the body has an arc-shaped structure provided along the circumferential direction of the rotary cylinder, and a labyrinth flow passage is provided in the body, the labyrinth flow passage extending reciprocally in the axial direction of the rotary cylinder from one end of the arc-shaped structure.

22. A tapping fitting according to claim 1 or 2, wherein the body is provided with a recess extending in the direction of the axis of the rotating cylinder on one side of the rotating cylinder, the recess being provided with a tapping orifice.

23. The tapping fitting according to claim 22, characterized in that the tapping orifice is located on the side of the recess which is counter-rotating to the direction of rotation of the cylinder.

24. A roller brush employing a liquid outlet member as claimed in any one of claims 1 to 23, comprising a rotatable drum, wherein a heating portion powered by electrical energy is provided circumferentially around the periphery of the rotatable drum, the heating portion having said liquid outlet member, the heating portion being in abutment and/or clearance fit with the periphery of the rotatable drum, the heating portion being for heating the cleaning portion of the rotatable drum and/or the cleaning liquid supplied to the cleaning portion.

25. The tapping member of claim 24, wherein the tapping member simultaneously acts as a heating portion.

26. A cleaning device employing a roller brush as claimed in any one of claims 22 to 25, wherein the cleaning device comprises said roller brush.