CN115978313A

CN115978313A - Water pipe assembly and cleaning robot

Info

Publication number: CN115978313A
Application number: CN202211573385.1A
Authority: CN
Inventors: 李振; 霍立祥; 石祥切; 秦宝星; 程昊天
Original assignee: Shanghai Gaussian Automation Technology Development Co Ltd
Current assignee: Shanghai Gaussian Automation Technology Development Co Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-18

Abstract

The application discloses water pipe assembly and cleaning machines people relates to cleaning equipment technical field. A water hose assembly usable with a cleaning robot, the water hose assembly comprising: the connecting component comprises an outer pipe, an inner pipe arranged inside the outer pipe and a connecting component for connecting the outer pipe and the inner pipe; wherein the inner tube comprises at least a part of telescopic tube body, so that the inner tube can be telescopic along the length direction thereof; the connecting assembly comprises a joint, the joint is sleeved on the outer side of the outer pipe, and the joint can rotate around the circumferential direction of the outer pipe; the connector is internally provided with a connecting structure, a first flow channel for the circulation of a first fluid is arranged in the outer pipe, two ends of the connecting structure are respectively connected with the first flow channel and the inner pipe, the connector rotates circumferentially relative to the outer pipe, and then the connecting structure is driven to rotate relative to the first flow channel. This application not only can reduce the water pipe in the use and tie a knot, winding phenomenon, but also has scalable function, uses more nimble convenient, and the user uses experience nature preferred.

Description

Water pipe assembly and cleaning robot

Technical Field

This application belongs to cleaning equipment technical field, concretely relates to water pipe assembly and cleaning machines people.

Background

In recent years, with the continuous development of automation technology and artificial intelligence, cleaning robots are widely used. For example, the cloth washing machine belongs to one of cleaning robots, is applied to daily life of people, can clean products such as carpets, sofas, seats, curtains and the like, is convenient to use, saves manpower, and improves efficiency.

Generally, the fabric washing machine is provided with a machine body and a water pipe connected with the machine body, wherein the water pipe is usually internally arranged and externally arranged, namely, a double-layer water pipe mode of an outer pipe and an inner pipe arranged inside the outer pipe is adopted. However, the design of the water pipe in the existing fabric washing machine has certain disadvantages, such as the inability to have ideal expansion ratio and bending flexibility, i.e. the inability to have good expansion and flexibility, which affects the hand feeling of use, and when the machine is used and dragged, the water pipe is easy to be stressed and pulled off, which is easy to be damaged, and affects the use effect. In addition, the water pipe is easy to curl and wind due to continuous walking in the using process, so that the water pipe is easy to tie, manual reverse unwinding is needed, time and labor are wasted, and user experience and cleaning efficiency are affected.

Disclosure of Invention

The present invention aims to solve at least one of the above technical problems to some extent.

Therefore, the water pipe assembly provided by the invention can be used in a cleaning robot, can reduce the phenomena of knotting and winding of the water pipe in the use process, and has a telescopic function, so that the use is more flexible and convenient, and the use experience of a user is better.

The invention further provides a cleaning robot with the water pipe assembly, the cleaning robot can ensure cleaning efficiency, is more flexible and convenient to use, and optimizes use experience of users.

In order to solve the technical problem, the present application is implemented as follows:

according to an embodiment of the present invention, there is provided a water pipe assembly applicable to a cleaning robot, the water pipe assembly including: the connecting component comprises an outer pipe, an inner pipe arranged inside the outer pipe, and a connecting component for connecting the outer pipe and the inner pipe;

wherein the inner tube comprises at least a part of telescopic tube body, so that the inner tube can be telescopic along the length direction thereof;

the connecting assembly comprises a joint, the joint is sleeved on the outer side of the outer pipe, and the joint can rotate around the circumferential direction of the outer pipe;

the connector is internally provided with a connecting structure, a first flow channel for the circulation of a first fluid is arranged in the outer pipe, one end of the connecting structure is connected with one end of the first flow channel, the other end of the connecting structure is connected with one end of the inner pipe, and the connecting structure is rotatable relative to the first flow channel.

In addition, the water pipe assembly according to the present invention may further have the following additional technical features:

in some embodiments of the present invention, the coupling assembly further includes first and second collars respectively disposed between the outer tube and the fitting;

the first and second collars are each rotatably engaged with the outer tube such that the fitting is adapted to be rotatable relative to the outer tube.

In some embodiments of the invention, the first collar is in snap-fit engagement with the fitting;

the second clamping ring is located below the first clamping ring and used for limiting the movement of the first clamping ring along the axis direction of the outer tube, and the outer side wall of the second clamping ring is matched with the inner side wall of the joint.

In some embodiments of the present invention, the joint includes a connecting section and a clamping section protruding from one side of the connecting section, and the first clamping ring and the second clamping ring are both disposed between the clamping section and the outer tube;

the peripheral surface of the outer edge of the first clamping ring is provided with a plurality of clamping bulges which are arranged at intervals, the clamping section is provided with a clamping interface corresponding to the clamping bulges, and the clamping bulges are clamped with the clamping interface;

the outer tube is provided with an annular groove corresponding to the part of the clamping section, and the second clamping ring is arranged in the annular groove.

In some embodiments of the present invention, the first collar is an annular structure;

the second clamping ring is of a C-shaped structure.

In some embodiments of the present invention, the water pipe assembly further includes a locking sleeve, and the locking sleeve is sleeved outside the outer pipe and located at an end of the joint away from the inner pipe.

In some embodiments of the present invention, an annular boss is disposed on an outer side wall of the outer tube, the joint and the locking sleeve are disposed at a lower end and an upper end of the annular boss, respectively, a bottom end of the locking sleeve is connected to an outer circumferential surface of the annular boss, and a top surface of the joint abuts against a lower side surface of the annular boss;

and/or the locking sleeve is in threaded fit connection with the outer pipe.

In some embodiments of the present invention, the inner tube has a first channel for flowing a first fluid, two ends of the inner tube are respectively connected to the connecting structure and a clean water outlet of a water tank in the cleaning robot, and the first channel is in flow communication with the clean water outlet.

In some embodiments of the invention, a second channel is provided between the outer wall of the inner tube and the inner wall of the outer tube for communicating a second fluid; the first fluid is clear water, and the second fluid is sewage;

the water tank in the cleaning robot has a sewage collecting portion, and the second passage maintains a waterway communication with the sewage collecting portion.

In some embodiments of the present invention, the inner pipe includes a first telescopic pipe body, an inner pipe body and a second telescopic pipe body which are sequentially communicated, and lengths of the first telescopic pipe body and the second telescopic pipe body are respectively smaller than that of the inner pipe body.

In some embodiments of the invention, the first and second flexible tubes are helical tubes;

or the first telescopic pipe body and the second telescopic pipe body are made of telescopic materials and form a non-linear shape.

In some embodiments of the present invention, one end of the first flexible tube is connected to the connecting structure, and the other end of the first flexible tube is connected to one end of the inner tube body through a first adaptor;

one end of the second telescopic pipe body is connected with the other end of the inner pipe body through a second adapter, and the other end of the second telescopic pipe body is communicated with a water tank in the cleaning robot.

In some embodiments of the present invention, the wall of the outer tube has a flexible structure, or the outer tube is made of an elastic material, so that the outer tube is flexible along the length direction.

In some embodiments of the invention, the outer tube is a bellows having elasticity.

There is also provided, in accordance with an embodiment of the present invention, a cleaning robot including a water tank and the water tube assembly as previously described in communication with the water tank in a waterway.

Compared with the prior art, the invention has at least the following beneficial effects:

(1) The water pipe assembly provided by the invention comprises an inner pipe, an outer pipe and a connecting assembly, wherein the inner pipe is provided with at least part of a telescopic pipe body, so that the inner pipe can be telescopic along the length direction of the inner pipe, a telescopic function with a certain proportion can be realized, the flexibility is kept, the built-in inner pipe is not subjected to excessive pulling force, is not easy to be loosened and broken by stress, is more flexible, convenient and quick to use, and is beneficial to reducing the damage of the water pipe assembly; and because the inner tube has certain flexible function, the elastic expansion and flexibility of the outer tube can be realized during working, the problems that the tube body of the current outer tube is relatively rigid and affects hand feeling, the steering and bending are not flexible enough and the use experience is poor in the use process can be solved, and the user experience is optimized.

(2) According to the water pipe assembly provided by the invention, the joint in the connecting assembly is a rotatable joint, namely the joint can rotate relative to the outer pipe, and the connecting assembly is internally provided with the connecting structure which can be used for connecting the first flow channel in the outer pipe with the inner pipe, so that the first fluid flows from the interior of the inner pipe to the first flow channel through the connecting structure and then flows out. Thereby, when the relative outer tube of joint rotates, can drive its inside connection structure first flow path relatively rotatable to, the user can rotate automatically when walking about the use the pipeline, can avoid the built-in inner tube in the handheld water pipe to tie a knot, the problem of winding etc. has improved user experience, has guaranteed clean efficiency, still helps increasing the life of water pipe.

(3) The cleaning robot comprises the water pipe assembly of the embodiment, and the water pipe assembly of the embodiment has the beneficial effects, so that the cleaning robot can have the corresponding beneficial effects by arranging the water pipe assembly, and the detailed description is omitted.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural view of a water tube assembly according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the construction of the inner tube of the water tube assembly disclosed in the embodiments of the present application;

FIG. 3 is a schematic view, partly in section, of a water tube assembly according to an embodiment of the present application;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 3;

FIG. 5 is a schematic cross-sectional view of another portion of a water tube assembly according to the present disclosure;

fig. 6 is a schematic structural diagram of a connection assembly in a water pipe assembly disclosed in an embodiment of the present application.

Description of reference numerals:

100-inner tube; 101-a first channel; 110-a first flexible tube; 120-an inner tube body; 130-a second telescoping tube; 140-a first transition piece; 150-a second adaptor;

200-an outer tube; 201-a first flow channel; 202-a second channel; 203-annular groove; 204-annular boss;

300-a connection assembly; 310-a linker; 311-a linking structure; 312-a connecting segment; 313-a clamping section; 3131-a card interface; 320-a first collar; 321-clamping connection bulges; 330-a second collar; 340-a locking sleeve; 341-internal thread; 350-connecting short pipes;

400-a water tank; 401-clear water outlet; 402-sewage port.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 1 to 6, in some embodiments, a water pipe assembly for a cleaning robot is provided, the water pipe assembly including: the outer pipe 200, the inner pipe 100 disposed inside the outer pipe 200, and the connecting assembly 300 of the outer pipe 200 and the inner pipe 100. The water pipe assembly adopts a built-in and external double-layered water pipe structure, and the coupling assembly 300 may be used to couple the inner pipe 100 and the outer pipe 200, or may also be used to couple the outer pipe 200 to an associated external member.

It should be noted that the retractable water pipe structure of the present embodiment can be applied to a cleaning robot in a fabric washing machine, such as a handheld suction head, a brush head, etc., but is not limited thereto, and other cleaning robots with similar requirements are also applicable, that is, the present embodiment does not limit the specific type of the cleaning robot.

Specifically, in the water pipe assembly, the inner pipe 100 includes at least a portion of a flexible pipe body, so that the inner pipe 100 can be extended and retracted along the length direction thereof. For example, the inner pipe 100 and the inner pipe body 120 may be a flexible pipe body having a certain flexibility, and the inner pipe body 120 may be a general water pipe having no flexibility. The inner pipe 100 comprises a telescopic pipe body, so that the inner pipe 100 can extend along the length direction of the inner pipe 100, the inner pipe 100 has certain telescopic performance and keeps flexibility, the built-in inner pipe 100 is not subjected to excessive pulling force and is not easy to be loosened and broken by stress, the use is more flexible, convenient and quick, and the damage of the water pipe structure can be reduced; in addition, the elastic expansion and flexibility of the outer pipe 200 can be realized during operation, and the problems that the pipe body of the current outer pipe 200 is relatively stiff and affects hand feeling, the steering and bending are not flexible enough, and the use experience is poor can be solved.

In the water pipe assembly, the connecting assembly 300 includes a joint 310, the joint 310 is sleeved outside the outer pipe 200, and the joint 310 can rotate around the circumference of the outer pipe 200, that is, the joint 310 of the present embodiment is a rotatable joint 310. The joint 310 is provided with a connecting structure 311 inside, the outer tube 200 is provided with a first flow channel 201 for the first fluid to flow through, two ends of the connecting structure 311 are connected with the first flow channel 201 and the inner tube 100 respectively, that is, one end of the connecting structure 311 is connected with one end of the first flow channel 201, the other end of the connecting structure 311 is connected with one end of the inner tube 100, the joint 310 rotates circumferentially relative to the outer tube 200, and then the connecting structure 311 is driven to rotate relative to the first flow channel 201. Because joint 310 can rotate in circumferential direction relative to outer tube 200 to can drive its inside connection structure 311 and rotate for first runner 201, thereby the user is if the winding of discovery pipeline in the use, and the winding of accessible joint 310 avoids the pipeline, the problem of knoing.

Alternatively, the joint 310 may be a connection pipe joint 310, and the joint 310 has a tubular structure and can rotate circumferentially relative to the outer pipe 200.

A first flow channel 201 may be disposed in a portion of the outer tube 200, the first flow channel 201 may be used for flowing a first fluid, such as clean water, and the first flow channel 201 is communicated with the inside of the inner tube 100 through a connection structure 311 in the joint 310, so as to flow clean water. The first flow channel 201 is disposed inside the outer tube 200, and the portion of the outer tube 200 where the first flow channel 201 is disposed may be provided with a joint 310, so as to facilitate connection between a connection structure 311 of the joint 310 and one end of the first flow channel 201; further, to realize the outflow of the clean water, the first flow channel 201 may also extend further away from the inner tube 100, for example, to the upper end portion of the outer tube 200 without the joint 310, so as to facilitate the smooth outflow of the clean water.

Therefore, based on the above arrangement, with the technical solution provided by the embodiment of the present invention, on one hand, the joint 310 can rotate relative to the outer pipe 200 by the arrangement of the joint 310 and the like in the connecting assembly 300, and the joint 310 is internally provided with the connecting structure 311, and the connecting structure 311 can be used for connecting the first flow passage 201 inside the outer pipe 200 and the inner pipe 100, so that the first fluid, such as clean water, flows from the inside of the inner pipe 100 to the first flow passage 201 through the connecting portion and then flows out. Therefore, when the joint 310 rotates relative to the outer tube 200, the connection structure 311 inside the joint can be driven to rotate relative to the first flow channel 201, so that the pipeline can automatically rotate when a user walks for use, and the problems of knotting, winding and the like of the built-in pipeline in the handheld pipeline can be avoided. This water pipe assembly simple structure, use, simple to operate can drive inner tube 100 through the rotation of joint 310 and rotate, and then make the water pipe resume the state before twisting round, have alleviated can take place to tie a knot, winding problem in the water pipe uses, have improved user experience, have guaranteed clean efficiency, have increased the life of water pipe.

On the other hand, the inner pipe 100 can realize a certain proportion of telescopic function through the arrangement of the telescopic pipe body, the flexibility is kept, the built-in inner pipe 100 is not subjected to excessive pulling force, is not easy to be loosened and broken by stress, is more flexible, convenient and quick to use, and can reduce the damage of the water pipe; in addition, the elastic expansion and flexibility of the outer pipe 200 can be realized during working, the problems that the pipe body of the current outer pipe 200 is relatively stiff and affects hand feeling, the steering and bending are not flexible enough and the use experience is poor in the using process can be solved, and the user experience is optimized.

In this embodiment, the inner tube 100 has a first channel 101 for the first fluid to flow through, and a second channel 202 for the second fluid to flow through is formed between the outer wall of the inner tube 100 and the inner wall of the outer tube 200. The first fluid may be clean water, and the second fluid may be sewage, that is, the first channel 101 inside the inner tube 100 may be used for flowing clean water, and serves as a clean water outlet pipe, and the second channel 202 in the space between the inner tube 100 and the outer tube 200 may be used for flowing sewage, and serves as a sewage recovery channel.

As shown in fig. 1, 2 or 4, in some embodiments, the inner tube 100 includes a first telescopic tube 110, an inner tube body 120 and a second telescopic tube 130 which are connected in sequence, and the lengths of the first telescopic tube 110 and the second telescopic tube 130 are respectively smaller than the length of the inner tube body 120. Wherein the inner tube body 120 is disposed between the first flexible tube body 110 and the second flexible tube body 130, the inner tube body 120 can be a common tube body without flexible function, and the first flexible tube body 110 and the second flexible tube body 130 have certain flexibility, so as to achieve the flexibility in a certain proportion. The length of the first telescoping tube 110 can be less than, and particularly much less than, the length of the inner tube body 120, and the length of the second telescoping tube 130 can be less than, and particularly much less than, the length of the inner tube body 120.

By providing the first and second

stretchable tube bodies

110 and 130 having a stretching ability at both ends of the inner tube body 120, the inner tube 100 can have a certain stretching ability, that is, the inner tube 100 can be stretchable in the longitudinal direction thereof. Meanwhile, if the telescopic pipe bodies are adopted in the outer pipe 200, the space occupied by the inner part of the outer pipe 200 is too large, the ventilation area of the outer pipe 200 such as an air duct in a corrugated pipe is affected, and the ventilation quantity is affected; thus, in this embodiment, the length of the first stretchable tube 110 and the second stretchable tube 130 is smaller than the length of the inner tube body 120, so that the problem that the inner space of the outer tube 200 is too large, the ventilation area of the inner air duct is affected, and the ventilation volume is affected due to too long stretchable tubes can be avoided. In addition, if the length of the telescopic tube is longer than that of the general inner tube body 120, the length of the water supply line is increased by the telescopic tube entirely or mostly, so that the water stored in the built-in inner tube 100 is increased, and when the telescopic tube is not used, the outer tube 200 is contracted, so that the water in the built-in inner tube is easily overflowed. In addition, if the telescopic tube is used in its entirety, dirt and dust are more likely to accumulate inside the outer tube 200; the cost of a telescoping tube is generally high relative to the cost of a conventional tube. Therefore, the embodiment can meet the flexibility requirement of the inner pipe through only setting the telescopic pipe body with shorter length, ensure the ventilation area and ventilation volume inside the outer pipe 200, avoid the occurrence of a large amount of overflow, avoid the phenomenon that dirt and dust are easily accumulated inside the outer pipe 200, reduce the cost, have more compact and reasonable layout and ensure the use effect.

In some embodiments, the first and second

flexible tubes

110, 130 are helical tubes; that is, the first flexible tube 110 may be a spiral coil (or spring tube), and the second flexible tube 130 may be a spiral coil (or spring tube). Set to the heliciform through making first elasticity body 110 and second elasticity body 130, can make it have certain elasticity surplus, when dragging or dragging, can realize automatic flexible regulatory function, and then realize the scalability of inner tube 100, make inner tube 100 scalable along its length direction, increased the nimble convenience of use.

Alternatively, the first and second

flexible tubes

110, 130 are formed of a flexible material and are formed in a non-linear, e.g., helical or other, shape. That is, the first and second

telescopic tubes

110 and 130 may have a telescopic function by being spirally disposed, or may have a telescopic function by being formed of a telescopic material in a certain shape such as a non-linear shape. When the first and second

flexible pipes

110 and 130 are made of flexible materials, such as various known flexible materials that can be applied to the field of water pipes, the first and second

flexible pipes

110 and 130 may have a spiral shape, or may have a non-spiral shape, such as other various non-linear structures having a certain curve, a regular shape, or an irregular shape, as long as the first and second

flexible pipes

110 and 130 have a certain flexibility, which is not limited in this embodiment. Preferably, the first flexible tube 110 and the second flexible tube 130 are made of flexible materials and form a spiral shape, so that the flexibility is good and the technical effect is better.

Optionally, the inner tube body 120 is cylindrical. In this embodiment, the first and second

flexible pipes

110 and 130 may be flexible helical pipes, the inner pipe body 120 may be a common hollow cylindrical pipe, and the inner pipe body 120 may not have flexibility. Thus, the inner pipe body 120 is a water pipe with a common structure, so that the structure is simple, the source is wide, and the cost can be reduced.

Optionally, the shape, structure, length, etc. of the first and second

flexible pipes

110 and 130 may be the same, and the first and second

flexible pipes

110 and 130 may be symmetrically disposed at two ends of the inner pipe body 120; therefore, the structure is simple, the symmetry is good, and the processing and the manufacturing are easy. Alternatively, in other embodiments, the shape, structure and length of the first and second

telescopic tubes

110 and 130 may be slightly different, and may be selected and set according to the actual application requirement.

Therefore, in this embodiment, by inserting the spiral water pipes into the two ends of the inner pipe body 120, which is a common water pipe, the external outer pipe 200, such as a corrugated hose, is not affected during use, and the hand feeling is softer during use. The built-in water pipe is safer and is not easy to be damaged by stress, thereby being beneficial to prolonging the service life of the water pipe structure; the operation is more flexible and faster, and the cleaning time can be saved.

Optionally, the first flexible tube 110 and the second flexible tube 130 may be made of rubber, elastic plastic or similar non-metallic flexible materials, which are easily available, widely available and low in cost. Alternatively, the first and second

flexible pipes

110 and 130 may be made of metal, especially a flexible metal material with high elasticity, and the specific material for making the first and second

flexible pipes

110 and 130 is not limited in this embodiment.

Optionally, the lengths of the first and second

telescopic tubes

110, 130 are much smaller than the length of the inner tube body 120, for example, the length of the first telescopic tube 110 may be smaller than 1/3 of the length of the inner tube body 120, and the length of the second telescopic tube 130 may be smaller than 1/3 of the length of the inner tube body 120. Illustratively, the length of the first telescopic tube 110 may be about 3% to 20% of the length of the inner tube body 120; the length of the second telescopic tube 130 may be about 3% to 20% of the length of the inner tube body 120.

In some embodiments, the wall of the outer tube 200 has a flexible structure, for example, the wall of the outer tube 200 may have a corrugated structure at least partially, so that it has good elasticity and can change its length in the folding and stretching direction of the corrugations, i.e. the outer tube 200 can be made flexible along the length direction. Alternatively, the outer tube 200 may be made of an elastic material or a stretchable material so that the outer tube 200 is stretchable in a length direction. Alternatively, the outer tube 200 may be made of an elastic material and have a shape of a tube wall with a telescopic structure.

In this embodiment, the inner tube 100 is made extensible and contractible in the longitudinal direction by an extensible tube, such as the helical tube described above. Also, the outer tube 200 may be extensible and contractible along its length direction. The outer tube 200 may have a telescopic function by providing a telescopic structure, or may have a telescopic function by combining a certain telescopic structure, such as a corrugated structure or a corrugated structure, with a telescopic material or an elastic material, so that the flexibility is better.

In some embodiments, the outer tube 200 is a corrugated tube with elasticity, such as corrugated tube with elasticity used for the outer tube 200. In this embodiment, the elastic inner tube 100 is used, so that the outer tube 200 can be an elastic bellows tube as compared to a conventional ordinary rigid bellows tube without elasticity.

Alternatively, the outer tube 200 may be made of elastic plastic or rubber.

In some embodiments, one end of the first flexible tube 110 is connected to the connecting structure 311, and the other end of the first flexible tube 110 is connected to one end of the inner tube body 120 through the first adapter 140; one end of the second telescopic tube 130 is connected to the other end of the inner tube body 120 through a second adaptor 150, and the other end of the second telescopic tube 130 is communicated with a water tank 400 in the cleaning robot.

Optionally, two ends of the first adaptor 140 may be respectively connected to the first telescopic tube 110 and the inner tube body 120 in an inserting manner, and two ends of the second adaptor 150 may be respectively connected to the second telescopic tube 130 and the inner tube body 120 in an inserting manner. Through adopting the mode of pegging graft, easy to assemble and dismantlement, simple structure connects reliably.

In this embodiment, the first flexible pipe body 110 may be spiral, and the portion of the first flexible pipe body 110 for connecting the two ends may be provided with a small straight pipe section for connecting with the first adapter 140 and the connecting structure 311 respectively; the second telescopic pipe 130 may be spiral, and a portion of each of the two ends of the second telescopic pipe 130 for connection may be provided with a small straight pipe section for connection with the second adaptor 150 and the water tank 400 of the cleaning robot, respectively. Through the arrangement of the first adapter 140 and the second adapter 150, the two ends of the inner tube body 120 are respectively connected with the first telescopic tube body 110 and the second telescopic tube body 130, so that the communication of a water supply pipeline is realized.

It should be noted that the cleaning robot includes the water tank 400, and the specific structure of the water tank 400 may refer to the structure of the water tank in the cleaning robot in the prior art, which is not limited in this embodiment and is not described herein again.

As shown in fig. 3, 4 and 6, in some embodiments, the coupling assembly 300 further includes a first collar 320 and a second collar 330, the first collar 320 and the second collar 330 being disposed between the outer tube 200 and the fitting 310, respectively; the first and

second collars

320, 330 are each rotatably engaged with the outer tube 200 such that the fitting 310 is adapted to be rotatable relative to the outer tube 200.

The rotation of the joint 310 can be achieved by the rotational engagement of the first and

second collars

320, 330 with the outer tube 200, i.e., the first and

second collars

320, 330 can rotate relative to the outer tube 200.

Optionally, in the connection assembly 300, one end of the connection structure 311 inside the joint 310 is movably connected to one end of the first flow channel 201, for example, one end of the first flow channel 201 may be inserted into the connection structure 311, and an outer side wall of the first flow channel 201 is rotatably engaged with an inner side wall of the connection structure 311, so that the connection structure 311 can rotate relative to the first flow channel 201. The other end of the connecting structure 311 and the inner tube 100 may be connected in an inserting manner, for example, the other end of the connecting structure 311 may be inserted into the inner tube 100; or may be attached by interference fit, adhesive, etc. Thus, when the joint 310 is rotated, the connecting structure 311 inside the joint is rotated with respect to the first flow, so that the problem of knotting of the pipeline is avoided.

In some embodiments, the first collar 320 is rotationally engaged with the outer tube 200, and the first collar 320 is snapped onto the fitting 310; the second clamping ring 330 is rotatably matched with the outer pipe 200, the second clamping ring 330 is positioned below the first clamping ring 320 and used for limiting the movement of the first clamping ring 320 along the axial direction of the outer pipe 200, and the outer side wall of the second clamping ring 330 is matched with the inner side wall of the joint 310.

The first clamping ring 320 and the second clamping ring 330 are respectively in rotating fit with the outer tube 200, the first clamping ring 320 is connected with the rotating joint 310 in a clamping mode, and the second clamping ring 330 is positioned below the first clamping ring 320 and can be used for limiting the movement of the first clamping ring 320 along the axial direction of the outer tube 200, for example, the first clamping ring 320 can be prevented from moving downwards along the axial direction.

In some embodiments, the joint 310 includes a connecting section 312 and a clamping section 313 protruding from one side of the connecting section 312, and the first clamping ring 320 and the second clamping ring 330 are disposed between the clamping section 313 and the outer tube 200; the peripheral surface of the outer edge of the first collar 320 is provided with a plurality of clamping protrusions 321 arranged at intervals, the clamping section 313 is provided with a clamping interface 3131 corresponding to the clamping protrusions 321, and the clamping protrusions 321 are clamped with the clamping interface 3131; the portion of outer tube 200 corresponding to clamping section 313 is provided with an annular groove 203, and a second collar 330 is provided in annular groove 203.

The connector 310 may be formed of two parts, i.e., a connecting section 312 and a clamping section 313, and the clamping section 313 may be a protruding boss, i.e., the outer diameter of the clamping section 313 may be slightly larger than the outer diameter of the connecting section 312, so as to facilitate the installation of the first and

second collars

320 and 330. In order to realize the clamping connection between the first collar 320 and the connector 310, a plurality of clamping protrusions 321 may be disposed on the outer peripheral sidewall of the first collar 320, and clamping interfaces 3131 correspondingly matched with the clamping protrusions 321 are disposed on the clamping section 313 of the connector 310, so that the clamping connection between the first collar 320 and the connector 310 is realized through one-to-one matching clamping connection between the clamping protrusions 321 and the clamping interfaces 3131, which is convenient for installation and maintenance, and the connection structure 311 is reliable and does not hinder the rotation of the connector 310 and the first collar 320.

The second clamping ring 330 is located below the first clamping ring 320, when being installed, the first clamping ring 320 can be installed firstly, the clamping connection with the rotary joint 310 is realized through the clamping connection protrusion 321 of the first clamping ring 320, and then the second clamping ring 330 is installed, so that when the first clamping ring 320 moves downwards along the axial direction, the second clamping ring 330 can support the first clamping ring 320, namely, the axial direction of the first clamping ring 320 can be prevented from moving downwards by the arrangement of the second clamping ring 330, and the axial direction movement of the first clamping ring 320 can be limited. The second collar 330 may be mounted in such a manner that an annular groove 203 is provided at a portion of the outer tube 200, and the second collar 330 may be embedded in the annular groove 203, that is, the second collar 330 is provided between the annular groove 203 of the outer tube 200 and the clamping section 313 of the joint 310, an inner side surface of the second collar 330 is rotatably engaged with the annular groove 203, and an outer side surface of the second collar 330 is engaged with an inner wall of the clamping section 313 of the joint 310. The mode of installing the second clamping ring 330 by arranging the annular groove 203 on the outer tube 200 has simple structure, easy realization, convenient installation and disassembly and can avoid the up-and-down movement of the second clamping ring 330 along the axial direction.

Alternatively, the connecting section 312 and the clamping section 313 of the connector 310 may be integrally formed, that is, the connector 310 may be an integral structure, so that the integrity is good and the structure is reliable.

In some embodiments, the first collar 320 is an annular structure; the second collar 330 is in a C-shaped configuration.

Optionally, the second collar 330 may be made of an elastic material and have a C-shaped ring structure, so that the second collar 330 is easy to assemble and disassemble, and the first collar 320 is easy to adjust.

The first retainer ring 320 may be annular, for example, circular ring-shaped, such that the first retainer ring 320 and the outer tube 200 are not dropped off from the outer tube 200 after being sleeved, the plurality of clamping protrusions 321 on the outer circumferential surface of the first retainer ring 320 may be uniformly arranged around the outer sidewall thereof, and the number of the clamping interfaces 3131 of the clamping section 313 of the connector 310 is the same as the number of the clamping protrusions 321, such that when the first retainer ring 320 is mated with the connector 310, the plurality of clamping interfaces 3131 on the clamping section 313 of the connector 310 are in one-to-one clamping fit with the clamping protrusions 321 on the first retainer ring 320, thereby implementing the clamping between the first retainer ring 320 and the connector 310, and improving the strength of the connection structure 311 between the first retainer ring 320 and the connector 310.

In some embodiments, the water pipe assembly further comprises a locking sleeve 340, and the locking sleeve 340 is sleeved outside the outer pipe 200 and located at an end of the joint 310 facing away from the inner pipe 100. If the locking sleeve 340 is located at the upper end of the rotary joint 310, the stability of the installation and connection of the whole water pipe structure can be remarkably improved through the arrangement of the locking sleeve 340.

Optionally, a short connection pipe 350 may be inserted into one side end of the outer pipe 200, a second flow passage communicating with the first flow passage 201 is provided in the short connection pipe 350, and the short connection pipe 350 extends outward for connecting with other components such as a dirt absorbing structure. The locking sleeve 340 may be disposed outside an end of the outer tube 200, and a short connecting pipe 350 is disposed inside the outer tube 200 inside the locking sleeve 340. Through the arrangement of the locking sleeve 340, the connecting short pipe 350 and the outer pipe 200 can be connected more closely, and the stability of installation and connection is improved.

In some embodiments, the outer side wall of the outer tube 200 is provided with an annular boss 204, the joint 310 and the locking sleeve 340 are respectively disposed at the lower end and the upper end of the annular boss 204, the bottom end of the locking sleeve 340 is connected with the outer peripheral surface of the annular boss 204, and the top surface of the joint 310 abuts against the lower side surface of the annular boss 204.

The locking sleeve 340 and the annular boss 204 are engaged to prevent the joint 310 from falling off from the outer tube 200, and can limit the axial movement of the joint 310. The rotary joint 310 or the first clamping ring 320 can be prevented from moving upwards along the axial direction, such as by the arrangement of the annular boss 204 or the locking sleeve 340, and the limiting function is realized on the axial movement of the rotary joint 310 or the first clamping ring 320.

In some embodiments, the locking sleeve 340 is threadably engaged with the outer tube 200. For example, a screwing portion is disposed above the annular boss 204 of the outer tube 200, an external thread is disposed on an outer circumferential surface of the screwing portion, an internal thread 341 engaged with the external thread is disposed on an inner side of the locking sleeve 340, and the locking sleeve 340 is in threaded connection with the screwing portion. Thus, the locking sleeve 340 is connected with the outer tube 200 in a threaded manner, so that the locking sleeve 340 is convenient to install and is also convenient to replace and maintain.

As shown in fig. 3 to 5, in some embodiments, the inner tube 100 has a first channel 101 for the first fluid to flow through, two ends of the inner tube 100 are respectively connected to the connection structure 311 and the clean water outlet 401 of the water tank 400 in the cleaning robot, and the first channel 101 is in fluid communication with the clean water outlet 401.

Optionally, a spray head is disposed on one side of the outer pipe 200, the spray head is communicated with the first flow channel 201, and the clean water in the water tank 400 is sprayed out by the spray head through the clean water outlet 401, the first channel 101, the connecting structure 311 and the first flow channel 201.

In the inner pipe 100, the first stretchable pipe body 110, the inner pipe body 120, and the second stretchable pipe body 130 are sequentially connected, the first stretchable pipe body is connected to the connection structure 311 of the joint 310, and the second stretchable pipe body 130 is connected to the water tank 400. Specifically, the water tank 400 has a clean water outlet 401, and the second flexible tube 130 is connected to the clean water outlet 401 of the water tank 400; an opening may be provided in a side wall of the outer tube 200 at an end away from the water tank 400, and the opening may be used as a water jet, the water jet is communicated with the first flow channel 201 inside the outer tube 200, and a spray head or a nozzle may be provided at the water jet. Therefore, after flowing out through the clean water outlet 401, the clean water in the water tank 400 sequentially passes through the second telescopic tube body 130, the inner tube body 120, the first telescopic tube body 110, the connecting structure 311 and the first flow channel 201, and is sprayed out through the nozzle at the water spray opening, so that the cleaning of the product to be cleaned is realized.

In some embodiments, there is a second channel 202 between the outer wall of the inner tube 100 and the inner wall of the outer tube 200 for the passage of a second fluid; the water tank 400 in the cleaning robot has a sewage collecting part with which the second passage 202 is in waterway communication. Illustratively, the sewage collecting portion of the water tank 400 has a sewage port 402, one end of the outer pipe 200 is communicated with the sewage port 402, the other end of the outer pipe 200 is provided with a sewage suction structure, the sewage suction structure may be disposed at an end of the outer pipe 200 away from the water tank 400, and the sewage suction structure is communicated with the space between the outer pipe 200 and the inner pipe 100, i.e. the second channel 202, so that the sewage enters the second channel 202 after being sucked by the sewage suction structure and then enters the water tank 400 through the sewage port 402. Thereby, the sewage is sucked through the sewage suction structure, and then the sucked sewage passes through the second channel 202 and then enters the sewage receiving chamber of the water tank 400 through the sewage port 402. The specific structure of the dirt absorbing structure can refer to the prior art, and this embodiment is not limited thereto.

In some embodiments, a cleaning robot is also provided that includes a water tank 400 and the aforementioned water tube assembly in waterway communication with the water tank 400.

Alternatively, the cleaning robot may be a cloth washer, a floor washer, or the like, and the cleaning robot may include a handheld suction head or a brush head, or the like, and the embodiment is not limited to a specific type of the cleaning robot. Adopt above-mentioned water pipe assembly's cleaning machines people, can avoid the water pipe especially the inner tube 100's among them winding, phenomenon such as knot to because built-in inner tube 100 has good flexible function, can realize the flexible of outside bellows certain proportion at the during operation, keep the pliability, built-in water pipe does not receive too big pulling force, uses nimble convenient and fast more, has prolonged water pipe life, optimizes user experience.

It should be understood that the above-mentioned cleaning robot may further include conventional device components in a cleaning robot, such as a controller, a display, etc., and the specific structure and operation principle of these conventional components may refer to the prior art, which is not limited by this embodiment and will not be described in detail herein.

Details which are not described in the present description are known to the person skilled in the art.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.

Claims

1. A water hose assembly, characterized in that the water hose assembly comprises: the connecting component comprises an outer pipe, an inner pipe arranged inside the outer pipe and a connecting component for connecting the outer pipe and the inner pipe;

2. The water tube assembly of claim 1, wherein the connection assembly further comprises a first collar and a second collar, the first collar and the second collar being disposed between the outer tube and the fitting, respectively;

3. The water hose assembly of claim 2, wherein the first collar is snap-fit to the fitting;

4. The water pipe assembly according to claim 3, wherein the joint comprises a connecting section and a clamping section convexly arranged on one side of the connecting section, and the first clamping ring and the second clamping ring are arranged between the clamping section and the outer pipe;

5. The water hose assembly of claim 2, wherein the first collar is of annular configuration;

the second clamping ring is of a C-shaped structure.

6. The water tube assembly according to any one of claims 1 to 5, further comprising a locking sleeve, wherein the locking sleeve is sleeved outside the outer tube and located at one end of the joint facing away from the inner tube.

7. The water pipe assembly according to claim 6, wherein the outer side wall of the outer pipe is provided with an annular boss, the joint and the locking sleeve are respectively arranged at the lower end and the upper end of the annular boss, the bottom end of the locking sleeve is connected with the outer peripheral surface of the annular boss, and the top surface of the joint is abutted with the lower side surface of the annular boss;

and/or the locking sleeve is in threaded fit connection with the outer pipe.

8. The waterway assembly of any one of claims 1 to 5, wherein the inner tube has a first channel for the first fluid to flow through, and both ends of the inner tube are respectively connected to the connection structure and the clean water outlet of the water tank of the cleaning robot, and the first channel is in flow communication with the clean water outlet.

9. The water tube assembly according to any one of claims 1 to 5, wherein a second channel for communicating a second fluid is provided between the outer wall of the inner tube and the inner wall of the outer tube; the first fluid is clear water, and the second fluid is sewage;

a water tank in the cleaning robot has a sewage collecting portion, and the second passage is in waterway communication with the sewage collecting portion.

10. A cleaning robot comprising a water tank and a water hose assembly as claimed in any one of claims 1 to 9 in water communication with the water tank.