Water pipe components and cleaning robots

Abstract

The present application discloses a water pipe assembly and a cleaning robot, and relates to the technical field of cleaning equipment. A water pipe assembly can be used for a cleaning robot, and the water pipe assembly includes: an outer pipe, an inner pipe arranged inside the outer pipe, and a connecting assembly between the outer pipe and the inner pipe; wherein the inner pipe includes at least a partially retractable tube body, so that the inner pipe can be retracted along its length direction; the connecting assembly includes a joint, the joint is sleeved on the outside of the outer pipe, and the joint can rotate around the circumference of the outer pipe; a connecting structure is provided inside the joint, and the outer pipe has a first flow channel for the circulation of a first fluid inside, and the two ends of the connecting structure are respectively connected to the first flow channel and the inner pipe, and the joint rotates circumferentially relative to the outer pipe, thereby driving the connecting structure to rotate relative to the first flow channel. The present application can not only reduce the phenomenon of knotting and entanglement of water pipes during use, but also has a retractable function, is more flexible and convenient to use, and has a better user experience.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning equipment, and specifically relates to a water pipe assembly and a cleaning robot. Background Art

[0002] In recent years, with the continuous development of automation technology and artificial intelligence, cleaning robots have been widely used. For example, fabric cleaning machines are a type of cleaning robot that are used in people's daily lives. They can clean carpets, sofas, seats, curtains and other products. They are easy to use, save manpower and improve efficiency.

[0003] Typically, a fabric cleaning machine is provided with a machine body and a water pipe connected to the machine body. The water pipe is usually internal and external, that is, a double-layer water pipe is used, which is an outer pipe and an inner pipe arranged inside the outer pipe. However, the design of the water pipe in the existing fabric cleaning machine still has certain shortcomings. For example, it cannot have an ideal telescopic ratio and bending flexibility, that is, it cannot have good telescopicity and flexibility, which affects the feel of use. In addition, when using and dragging the machine, the water pipe is easily stressed and pulled off, and is easily damaged, which affects the use effect. In addition, due to constant walking during use, the handheld water pipe is prone to curling and entanglement, which can easily cause the handheld water pipe to become tangled, and thus needs to be manually untied in the opposite direction, which is time-consuming and labor-intensive, affecting the user experience and cleaning efficiency. Summary of the invention

[0004] The present invention aims to solve one of the above technical problems to at least some extent.

[0005] To this end, the present invention proposes a water pipe assembly that can be used in a cleaning robot. It can not only reduce the knotting and entanglement of the water pipe during use, but also has a retractable function, which is more flexible and convenient to use and provides a better user experience.

[0006] The present invention also proposes a cleaning robot having the above-mentioned water pipe assembly, which can ensure cleaning efficiency, is more flexible and convenient to use, and optimizes the user experience.

[0007] In order to solve the above technical problems, this application is implemented as follows:

[0008] According to an embodiment of the present invention, there is provided a water pipe assembly which can be applied to a cleaning robot, the water pipe assembly comprising: an outer pipe, an inner pipe arranged inside the outer pipe, and a connecting assembly between the outer pipe and the inner pipe;

[0009] Wherein, the inner tube comprises at least a partially retractable tube body, so that the inner tube can be retracted along its length direction;

[0010] The connecting assembly includes a joint, which is sleeved on the outside of the outer tube and can rotate around the circumference of the outer tube;

[0011] A connecting structure is provided inside the joint, and a first flow channel for the circulation of a first fluid is provided inside the outer tube. One end of the connecting structure is connected to one end of the first flow channel, and the other end of the connecting structure is connected to one end of the inner tube, and the connecting structure is rotatable relative to the first flow channel.

[0012] In addition, the water pipe assembly according to the present invention may also have the following additional technical features:

[0013] In some embodiments of the present invention, the connection assembly further comprises a first clamp ring and a second clamp ring, wherein the first clamp ring and the second clamp ring are respectively arranged between the outer tube and the joint;

[0014] The first clamping ring and the second clamping ring are respectively rotatably matched with the outer tube, so that the joint is suitable for being rotatable relative to the outer tube.

[0015] In some embodiments of the present invention, the first clamping ring is clamped with the connector;

[0016] The second clamping ring is located below the first clamping ring and is used to limit the movement of the first clamping ring along the axial direction of the outer tube. The outer side wall of the second clamping ring matches the inner side wall of the joint.

[0017] 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 arranged between the clamping section and the outer tube;

[0018] The outer peripheral surface of the first clamping ring is provided with a plurality of spaced clamping protrusions, the clamping section is provided with a clamping interface corresponding to the clamping protrusions, and the clamping protrusions are clamped with the clamping interface;

[0019] The portion of the outer tube corresponding to the clamping section is provided with an annular groove, and the second clamping ring is arranged in the annular groove.

[0020] In some embodiments of the present invention, the first collar is in an annular structure;

[0021] The second collar is in a C-shaped structure.

[0022] In some embodiments of the present invention, the water pipe assembly further includes a locking sleeve, which is sleeved on the outside of the outer pipe and located at an end of the joint away from the inner pipe.

[0023] In some embodiments of the present invention, the outer side wall of the outer tube is provided with an annular boss, the joint and the locking sleeve are respectively provided at the lower end and the upper end of the annular boss, the bottom end of the locking sleeve is connected to the outer peripheral surface of the annular boss, and the top surface of the joint is in contact with the lower side surface of the annular boss;

[0024] And / or, the locking sleeve is threadably connected to the outer pipe.

[0025] In some embodiments of the present invention, the interior of the inner tube has a first channel for circulating a first fluid, and both ends of the inner tube are respectively connected to the connecting structure and the clean water outlet of the water tank in the cleaning robot, and the first channel maintains flow communication with the clean water outlet.

[0026] In some embodiments of the present invention, a second channel for a second fluid to flow is provided between the outer wall of the inner tube and the inner wall of the outer tube; the first fluid is clean water, and the second fluid is sewage;

[0027] The water tank in the cleaning robot has a sewage collecting portion, and the second channel is in water communication with the sewage collecting portion.

[0028] In some embodiments of the present invention, the inner tube includes a first telescopic tube body, an inner tube body, and a second telescopic tube body that are connected in sequence, and the lengths of the first telescopic tube body and the second telescopic tube body are respectively smaller than the length of the inner tube body.

[0029] In some embodiments of the present invention, the first telescopic tube and the second telescopic tube are both spiral tubes;

[0030] Alternatively, the first telescopic tube and the second telescopic tube are made of a telescopic material and have a non-linear shape.

[0031] In some embodiments of the present invention, one end of the first telescopic tube body is connected to the connecting structure, and the other end of the first telescopic tube body is connected to one end of the inner tube body through a first adapter;

[0032] One end of the second telescopic tube body is connected to the other end of the inner tube body through a second adapter, and the other end of the second telescopic tube body is connected to a water tank in the cleaning robot.

[0033] In some embodiments of the present invention, the tube wall of the outer tube has a retractable structure, or the outer tube is made of an elastic material, so that the outer tube can be retracted along the length direction.

[0034] In some embodiments of the present invention, the outer tube is an elastic bellows.

[0035] According to an embodiment of the present invention, there is further provided a cleaning robot, which comprises a water tank and the water pipe assembly as described above which is in water communication with the water tank.

[0036] Compared with the prior art, the present invention has at least the following beneficial effects:

[0037] (1) The water pipe assembly provided by the present invention comprises an inner pipe, an outer pipe and a connecting assembly, wherein the inner pipe has at least a partially retractable tube body, so that the inner pipe can be retracted along its length direction, thereby achieving a certain proportion of retractable function and maintaining flexibility. The built-in inner pipe is not subject to excessive pulling force and is not easy to loosen or break under force. It is more flexible, convenient and quick to use, which helps to reduce damage to the water pipe assembly. Moreover, based on the fact that the inner pipe has a certain retractable function, the elastic retraction and flexibility of the outer pipe can be achieved during operation, which can alleviate the problems of the outer pipe being relatively stiff during use, affecting the feel, not being flexible in turning and bending, and having a poor user experience, thereby optimizing the user experience.

[0038] (2) The joint in the connection assembly of the water pipe assembly provided by the present invention is a rotatable joint, that is, the joint can rotate relative to the outer tube, and a connection structure is provided inside the connection assembly, which can be used to connect the first flow channel inside the outer tube and the inner tube, so that the first fluid flows from the inside of the inner tube through the connection structure to the first flow channel and then flows out. Therefore, when the joint rotates relative to the outer tube, the connection structure inside it can be driven to rotate relative to the first flow channel, so that the pipeline can rotate automatically when the user is walking and using it, which can avoid the problems of knotting and entanglement of the built-in inner tube in the handheld water pipe, improve the user experience, ensure the cleaning efficiency, and also help to increase the service life of the water pipe.

[0039] (3) The cleaning robot of the present invention includes the water pipe assembly of the above-mentioned embodiment. Since the water pipe assembly according to the embodiment of the present invention has the above-mentioned beneficial effects, by setting the water pipe assembly, the cleaning robot according to the embodiment of the present application can have the corresponding beneficial effects, which will not be repeated here.

[0040] Additional aspects and advantages of the present application will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the structure of the water pipe assembly disclosed in the embodiment of the present application;

[0042] Figure 2 This is a schematic diagram of the structure of the inner pipe in the water pipe assembly disclosed in the embodiment of the present application;

[0043] Figure 3A schematic diagram of a partial cross-sectional structure of a water pipe assembly disclosed in an embodiment of the present application;

[0044] Figure 4 for Figure 3 A partial enlarged schematic diagram of the structure;

[0045] Figure 5 It is a schematic diagram of another partial cross-sectional structure of the water pipe assembly disclosed in the embodiment of the present application;

[0046] Figure 6 This is a schematic diagram of the structure of the connecting assembly in the water pipe assembly disclosed in the embodiment of the present application.

[0047] Description of reference numerals:

[0048] 100 - inner tube; 101 - first channel; 110 - first telescopic tube body; 120 - inner tube body; 130 - second telescopic tube body; 140 - first adapter; 150 - second adapter;

[0049] 200-outer tube; 201-first flow channel; 202-second channel; 203-annular groove; 204-annular boss;

[0050] 300-connection assembly; 310-connector; 311-connection structure; 312-connection section; 313-clamping section; 3131-clamping interface; 320-first clamping ring; 321-clamping protrusion; 330-second clamping ring; 340-locking sleeve; 341-internal thread; 350-connecting short pipe;

[0051] 400-water tank; 401-clean water outlet; 402-sewage outlet. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0053] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0054] See also Figures 1 to 6As shown, in some embodiments, a water pipe assembly is provided, which can be applied to a cleaning robot, and the water pipe assembly includes: an outer pipe 200, an inner pipe 100 disposed inside the outer pipe 200, and a connecting assembly 300 between the outer pipe 200 and the inner pipe 100. The water pipe assembly adopts an internal and external double-layer water pipe structure, and the connecting assembly 300 can be used to connect the inner pipe 100 and the outer pipe 200, or can also be used to connect the outer pipe 200 with related external components.

[0055] It should be noted that the retractable water pipe structure of this embodiment can be used in cleaning robots such as fabric cleaning machines, such as handheld suction heads, brush heads, etc., but is not limited to this. Other cleaning robots with similar requirements are also applicable. That is, this embodiment does not limit the specific type of cleaning robot.

[0056] Specifically, in the water pipe assembly, the inner pipe 100 includes at least a part of a telescopic pipe body, so that the inner pipe 100 can be telescopic along its length direction. For example, the inner pipe 100 and the telescopic pipe body 120, wherein the telescopic pipe body has a certain telescopic performance, and the inner pipe body 120 can adopt an ordinary water pipe without telescopic performance. By making the inner pipe 100 include a telescopic pipe body, the inner pipe 100 can be extended along its length direction, so that the inner pipe 100 has a certain telescopic performance and maintains flexibility. The built-in inner pipe 100 is not subjected to excessive pulling force, and is not easy to be loosened and broken by force. It is more flexible, convenient and quick when used, and the damage to the water pipe structure can be reduced; and the elastic expansion and contraction and flexibility of the external outer pipe 200 can be achieved during work, which can alleviate the problems that the current outer pipe 200 is relatively stiff during use, affects the feel, is not flexible enough in turning and bending, and has a poor user experience.

[0057] In the water pipe assembly, the connection assembly 300 includes a joint 310, which is sleeved on the outer side of the outer tube 200 and can rotate around the circumference of the outer tube 200, that is, the joint 310 of this embodiment is a rotatable joint 310. A connection structure 311 is provided inside the joint 310, and the outer tube 200 has a first flow channel 201 for the first fluid to flow inside, and the two ends of the connection structure 311 are respectively connected to the first flow channel 201 and the inner tube 100, that is, one end of the connection structure 311 is connected to one end of the first flow channel 201, and the other end of the connection structure 311 is connected to one end of the inner tube 100, and the joint 310 rotates circumferentially relative to the outer tube 200, thereby driving the connection structure 311 to rotate relative to the first flow channel 201. Since the joint 310 can rotate circumferentially relative to the outer tube 200, it can drive the internal connection structure 311 to rotate relative to the first flow channel 201. Therefore, if the user finds that the pipe is entangled during use, the user can avoid the entanglement and knotting of the pipe by rotating the joint 310.

[0058] Optionally, the joint 310 may be a connecting pipe joint 310 , which is a tubular structure and can rotate circumferentially relative to the outer tube 200 .

[0059] A first flow channel 201 may be provided inside a part of the outer tube 200, and the first flow channel 201 may be used for the circulation of a first fluid such as clean water. The first flow channel 201 is connected to the inside of the inner tube 100 through the connection structure 311 in the joint 310, thereby realizing the circulation of clean water. The first flow channel 201 is provided inside the outer tube 200, and the part of the outer tube 200 provided with the first flow channel 201 may be provided with a joint 310, so as to facilitate the connection between the connection structure 311 of the joint 310 and one end of the first flow channel 201; further, in order to realize the outflow of clean water, the first flow channel 201 may also be further extended in a direction away from the inner tube 100, such as extending to the upper end of the outer side of the outer tube 200 where the joint 310 is not provided, so as to facilitate the smooth outflow of clean water.

[0060] Therefore, based on the above settings, the technical solution provided by the embodiment of the present invention is adopted. On the one hand, through the setting of the joint 310 and the like in the connection assembly 300, the joint 310 can be rotated relative to the outer tube 200, and a connection structure 311 is provided inside the joint 310, and the connection structure 311 can be used to connect the first flow channel 201 and the inner tube 100 inside the outer tube 200, so that the first fluid such as clean water flows from the inside of the inner tube 100 through the connection part to the first flow channel 201 and then flows out. Therefore, when the joint 310 rotates relative to the outer tube 200, the connection structure 311 inside it can be driven to rotate relative to the first flow channel 201, so that the pipeline can be automatically rotated when the user walks and uses it, and the problems of knotting and entanglement of the built-in pipeline in the handheld pipeline can be avoided. The water pipe assembly has a simple structure, is easy to use and install, and the rotation of the joint 310 can drive the inner tube 100 to rotate, thereby restoring the water pipe to the state before twisting, alleviating the problem of knotting and entanglement of the water pipe during use, improving user experience, ensuring cleaning efficiency, and increasing the service life of the water pipe.

[0061] On the other hand, the inner tube 100 can achieve a certain proportion of telescopic function and maintain flexibility through the setting of the telescopic tube body. The built-in inner tube 100 is not subject to excessive pulling force and is not easy to loosen or break. It is more flexible, convenient and quick to use, and can reduce damage to the water pipe. Moreover, the elastic telescopic and flexibility of the external outer tube 200 can be achieved during work, which can alleviate the problems of the current outer tube 200 being relatively stiff during use, affecting the feel, not flexible in turning and bending, and poor user experience, thereby optimizing the user experience.

[0062] In this embodiment, the inner tube 100 has a first channel 101 for the circulation of a first fluid, and a second channel 202 for the circulation of a second fluid is provided 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 inner tube 100, i.e., the first channel 101, can be used for the circulation of clean water as a clean water outlet pipe, and the space between the inner tube 100 and the outer tube 200, i.e., the second channel 202, can be used for the circulation of sewage as a sewage recovery channel.

[0063] like Figure 1 , Figure 2 or Figure 4 As shown, in some embodiments, the inner tube 100 includes a first telescopic tube body 110, an inner tube body 120, and a second telescopic tube body 130 that are sequentially connected, and the lengths of the first telescopic tube body 110 and the second telescopic tube body 130 are respectively smaller than the length of the inner tube body 120. The inner tube body 120 is disposed between the first telescopic tube body 110 and the second telescopic tube body 130, and the inner tube body 120 can be an ordinary tube body without telescopic function, while the first telescopic tube body 110 and the second telescopic tube body 130 have certain flexibility and can achieve a certain proportion of telescopic. The length of the first telescopic tube body 110 can be smaller than, especially much smaller than, the length of the inner tube body 120, and the length of the second telescopic tube body 130 can be smaller than, especially much smaller than, the length of the inner tube body 120.

[0064] By arranging the first telescopic tube body 110 and the second telescopic tube body 130 with telescopic ability at both ends of the inner tube body 120, the inner tube 100 can have a certain telescopic performance, that is, the inner tube 100 can be telescopic along its length direction. At the same time, if the outer tube 200 is entirely made of telescopic tube bodies, the space inside the outer tube 200 will be too large, which will affect the ventilation area of ​​the inner air duct of the outer tube 200 such as the corrugated tube, and the ventilation volume; thus, by making the length of the first telescopic tube body 110 and the second telescopic tube body 130 shorter than the length of the inner tube body 120, the problem of occupying too much space inside the outer tube 200, affecting the ventilation area of ​​the internal air duct, and affecting the ventilation volume caused by the telescopic tube body being too long can be avoided. In addition, if the length of the telescopic tube body is greater than the length of the ordinary inner tube body 120, such that all or most of the telescopic tube bodies are telescopic tube bodies, the length of the water supply pipeline will be increased, thereby increasing the water storage inside the built-in inner tube 100. When not in use, the outer tube 200 will shrink, which will easily cause water to overflow from the built-in inner tube. In addition, if all telescopic tubes are used, dirt and dust are more likely to accumulate inside the outer tube 200; the cost of telescopic tubes is generally higher than that of ordinary tubes. Therefore, this embodiment only sets a relatively short telescopic tube, which can not only meet the telescopic requirements of the inner tube, ensure the ventilation area and ventilation volume inside the outer tube 200, but also avoid the situation of a large amount of overflow, and also avoid the phenomenon of dirt and dust easily accumulating inside the outer tube 200, which can reduce costs, make the layout more compact and reasonable, and ensure the use effect.

[0065] In some embodiments, the first telescopic tube body 110 and the second telescopic tube body 130 are both spiral tube bodies; that is, the first telescopic tube body 110 can be a spiral spiral tube (or spring tube), and the second telescopic tube body 130 can be a spiral spiral tube (or spring tube). By making the first telescopic tube body 110 and the second telescopic tube body 130 spiral, they can have a certain elastic margin, and when pulled or dragged, they can realize the automatic telescopic adjustment function, thereby realizing the telescopicity of the inner tube 100, making the inner tube 100 telescopic along its length direction, and increasing the flexibility and convenience of use.

[0066] Alternatively, the first telescopic tube body 110 and the second telescopic tube body 130 are composed of a telescopic material and form a non-linear shape such as a spiral shape or other shapes. That is, the first telescopic tube body 110 and the second telescopic tube body 130 can be configured to have a telescopic function through a spiral setting on the one hand, and can also be configured to have a telescopic function through a certain shape such as a non-linear setting of the telescopic material on the other hand. When the first telescopic tube body 110 and the second telescopic tube body 130 are made of a telescopic material such as various known flexible materials that can be applied to the field of water pipes, the shape of the first telescopic tube body 110 and the second telescopic tube body 130 can be a spiral shape, or a non-spiral shape such as other non-linear structures with certain curves, regular or irregular shapes, etc., as long as the first telescopic tube body 110 and the second telescopic tube body 130 can have a certain degree of telescopicity, and this embodiment does not limit this. Preferably, the first telescopic tube body 110 and the second telescopic tube body 130 are composed of a telescopic material and form a spiral shape, so that the telescopicity is good and a better technical effect can be achieved.

[0067] Optionally, the inner tube body 120 is cylindrical. In this embodiment, the first telescopic tube body 110 and the second telescopic tube body 130 may be spiral tube bodies with telescopic properties, while the inner tube body 120 may be a common hollow cylindrical tube body, and the inner tube body 120 may not have telescopic properties. In this way, by making the inner tube body 120 a water pipe of common structure, the structure is simple, the source is wide, and the cost can be reduced.

[0068] Optionally, the first telescopic tube body 110 and the second telescopic tube body 130 may have the same shape, structure, length, etc., and the first telescopic tube body 110 and the second telescopic tube body 130 may be symmetrically arranged at both ends of the inner tube body 120; in this way, the structure is simple, the symmetry is good, and it is easy to process and manufacture. Alternatively, in other embodiments, the shape, structure or length of the first telescopic tube body 110 and the second telescopic tube body 130 may also be slightly different, which can be selected and set according to actual application requirements.

[0069] Therefore, this embodiment inserts spiral water pipes at both ends of the common water pipe, i.e., the inner pipe body 120, so that the free expansion and contraction of the outer pipe 200, such as a corrugated hose, will not be affected during use, and can present a softer hand feel during use. In addition, the internal water pipe is safer and not easily damaged by force, which helps to extend the service life of the water pipe structure; the operation is more flexible and quick, which can save cleaning time.

[0070] Optionally, the first telescopic tube 110 and the second telescopic tube 130 can be made of rubber, elastic plastic or similar non-metallic flexible materials, which are easy to obtain, widely available and low in cost. Alternatively, the first telescopic tube 110 and the second telescopic tube 130 can also be made of metal, especially a flexible metal material with high elasticity. This embodiment does not limit the specific manufacturing materials of the first telescopic tube 110 and the second telescopic tube 130.

[0071] Optionally, the lengths of the first telescopic tube body 110 and the second telescopic tube body 130 are much shorter than the length of the inner tube body 120. For example, the length of the first telescopic tube body 110 may be less than 1 / 3 of the length of the inner tube body 120, and the length of the second telescopic tube body 130 may be less than 1 / 3 of the length of the inner tube body 120. Exemplarily, the length of the first telescopic tube body 110 may be about 3%-20% of the length of the inner tube body 120; the length of the second telescopic tube body 130 may be about 3%-20% of the length of the inner tube body 120.

[0072] In some embodiments, the tube wall of the outer tube 200 has a retractable structure. For example, the tube wall of the outer tube 200 may at least partially have a pleated structure, so that it has good elasticity and can change its length in the folding and retracting direction of the pleats, that is, the outer tube 200 can be retractable along the length direction. Alternatively, the outer tube 200 can be made of an elastic material or a retractable material so that the outer tube 200 can be retractable along the length direction. Alternatively, the outer tube 200 can be in the shape of a tube wall composed of an elastic material and having a retractable structure.

[0073] In this embodiment, the inner tube 100 is retractable along the length direction by means of a retractable tube body, such as the spiral tube body mentioned above. Moreover, the outer tube 200 is also retractable along its length direction. The outer tube 200 can be retracted by setting a retractable structure, or by using a retractable material or elastic material to achieve the retractable function, or by using a retractable material or elastic material combined with a certain retractable structure such as a pleated or corrugated structure, so that the retractability is better.

[0074] In some embodiments, the outer tube 200 is an elastic bellows, such as an elastic corrugated bellows. In this embodiment, due to the use of the elastic inner tube 100, the outer tube 200 can be an elastic bellows compared to the existing ordinary inelastic and hard bellows.

[0075] Optionally, the outer tube 200 may be made of elastic materials such as plastic or rubber.

[0076] In some embodiments, one end of the first telescopic tube body 110 is connected to the connecting structure 311, and the other end of the first telescopic tube body 110 is connected to one end of the inner tube body 120 through the first adapter 140; one end of the second telescopic tube body 130 is connected to the other end of the inner tube body 120 through the second adapter 150, and the other end of the second telescopic tube body 130 is connected to the water tank 400 in the cleaning robot.

[0077] Optionally, the two ends of the first adapter 140 can be connected to the first telescopic tube body 110 and the inner tube body 120 respectively by plugging, and the two ends of the second adapter 150 can be connected to the second telescopic tube body 130 and the inner tube body 120 respectively by plugging. By adopting the plugging method, installation and disassembly are convenient, the structure is simple, and the connection is reliable.

[0078] In this embodiment, the first telescopic tube body 110 may be in a spiral shape, and the two ends of the first telescopic tube body 110 may be provided with a small portion of a straight tube section for connecting with the first adapter 140 and the connecting structure 311 respectively; the second telescopic tube body 130 may be in a spiral shape, and the two ends of the second telescopic tube body 130 may be provided with a small portion of a straight tube section for connecting with the second adapter 150 and the water tank 400 in the cleaning robot respectively. Through the provision of the first adapter 140 and the second adapter 150, it is convenient to realize that the two ends of the inner tube body 120 are connected to the first telescopic tube body 110 and the second telescopic tube body 130 respectively, so as to realize the communication of the water supply pipeline.

[0079] It should be pointed out that the cleaning robot includes a water tank 400. The specific structure of the water tank 400 can refer to the water tank structure of the cleaning robot in the prior art. This embodiment does not limit this and will not be repeated here.

[0080] like Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, the connection assembly 300 also includes a first clamping ring 320 and a second clamping ring 330, and the first clamping ring 320 and the second clamping ring 330 are respectively arranged between the outer tube 200 and the joint 310; the first clamping ring 320 and the second clamping ring 330 are respectively rotatably matched with the outer tube 200, so that the joint 310 is suitable for being rotatable relative to the outer tube 200.

[0081] The first clamping ring 320 and the second clamping ring 330 are rotatably matched with the outer tube 200 , that is, the first clamping ring 320 and the second clamping ring 330 can be rotated relative to the outer tube 200 , so that the joint 310 can be rotated.

[0082] 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, such as one end of the first flow channel 201 can be inserted into the connection structure 311, and the outer wall of the first flow channel 201 is rotatably matched with the inner 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 connection structure 311 and the inner tube 100 can be connected in a plug-in manner, such as the other end of the connection structure 311 can be inserted into the inner tube 100; or can be connected in an interference fit, bonding, etc. Thus, when the joint 310 rotates, the connection structure 311 inside it is driven to rotate relative to the first flow channel, so as to avoid problems such as tangling of the pipeline.

[0083] In some embodiments, the first clamping ring 320 is rotationally matched with the outer tube 200, and the first clamping ring 320 is clamped with the joint 310; the second clamping ring 330 is rotationally matched with the outer tube 200, and the second clamping ring 330 is located below the first clamping ring 320, and is used to limit the movement of the first clamping ring 320 along the axial direction of the outer tube 200, and the outer wall of the second clamping ring 330 is matched with the inner wall of the joint 310.

[0084] The first clamping ring 320 and the second clamping ring 330 are respectively rotatably matched with the outer tube 200, and the first clamping ring 320 is connected to the rotating joint 310 by a clamping method, and the second clamping ring 330 is located below the first clamping ring 320, and can be used to limit the movement of the first clamping ring 320 along the axial direction of the outer tube 200, such as preventing the first clamping ring 320 from moving downward along the axial direction.

[0085] 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 both arranged between the clamping section 313 and the outer tube 200; the outer edge circumference of the first clamping ring 320 is provided with a plurality of spaced clamping protrusions 321, and the clamping section 313 is provided with a clamping interface 3131 corresponding to the clamping protrusion 321, and the clamping protrusion 321 is clamped with the clamping interface 3131; the outer tube 200 corresponding to the clamping section 313 is provided with an annular groove 203, and the second clamping ring 330 is arranged in the annular groove 203.

[0086] The joint 310 may be composed of two parts, namely, a connecting section 312 and a clamping section 313. The clamping section 313 may be a protruding boss, that is, 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 clamping ring 320 and the second clamping ring 330. In order to realize the clamping connection between the first clamping ring 320 and the joint 310, a plurality of clamping protrusions 321 may be provided on the outer peripheral side wall of the first clamping ring 320, and a clamping interface 3131 corresponding to the clamping protrusion 321 may be provided on the clamping section 313 of the joint 310. The clamping connection between the clamping protrusion 321 and the clamping interface 3131 is realized by the one-to-one clamping connection between the clamping protrusion 321 and the clamping interface 3131. This facilitates installation and maintenance, and the connection structure 311 is reliable and will not hinder the rotation of the joint 310 and the first clamping ring 320.

[0087] The above-mentioned second clamping ring 330 is located below the first clamping ring 320. During installation, the first clamping ring 320 can be installed first, and the clamping protrusion 321 of the first clamping ring 320 can be used to realize the clamping connection with the rotating joint 310, and then the second clamping ring 330 can be installed. In this way, when the first clamping ring 320 moves downward along the axial direction, it can be supported by the second clamping ring 330, that is, the setting of the second clamping ring 330 can be used to prevent the first clamping ring 320 from moving downward in the axial direction, thereby limiting the axial movement of the first clamping ring 320. The second clamping ring 330 can be installed in such a way that an annular groove 203 is provided on a portion of the outer tube 200, and the second clamping ring 330 can be embedded in the annular groove 203, that is, the second clamping ring 330 is provided between the annular groove 203 of the outer tube 200 and the clamping section 313 of the joint 310, the inner side surface of the second clamping ring 330 is rotationally matched with the annular groove 203, and the outer side surface of the second clamping ring 330 is matched with the inner wall of the clamping section 313 of the joint 310. By providing the annular groove 203 on the outer tube 200 to install the second clamping ring 330, the structure is simple, easy to implement, convenient to install and disassemble, and the second clamping ring 330 can be prevented from moving up and down along the axial direction.

[0088] Optionally, the connecting section 312 and the clamping section 313 of the joint 310 may be integrally formed, that is, the joint 310 may be an integral structure, which has good integrity and reliable structure.

[0089] In some embodiments, the first collar 320 is an annular structure; the second collar 330 is a C-shaped structure.

[0090] Optionally, the second clamping ring 330 may be made of an elastic material and have a C-shaped ring structure, so that the second clamping ring 330 can be easily assembled and disassembled, and the first clamping ring 320 can be more easily adjusted.

[0091] The first clamping ring 320 can be arranged in an annular shape such as a circular ring, so that the first clamping ring 320 will not fall off the outer tube 200 after being assembled with the outer tube 200. The multiple clamping protrusions 321 on the outer peripheral surface of the first clamping ring 320 can be evenly arranged around its outer side wall, and the number of the clamping interfaces 3131 of the clamping section 313 of the joint 310 is the same as the number of the clamping protrusions 321, so that when the first clamping ring 320 is matched with the joint 310, the multiple clamping interfaces 3131 on the clamping section 313 of the joint 310 are clamped and matched with the clamping protrusions 321 on the first clamping ring 320 one by one, thereby realizing the clamping of the first clamping ring 320 with the joint 310, and can improve the strength of the connection structure 311 between the first clamping ring 320 and the joint 310.

[0092] In some embodiments, the water pipe assembly further includes a locking sleeve 340, which is sleeved on the outer side of the outer pipe 200 and located at the end of the joint 310 away from the inner pipe 100. If the locking sleeve 340 is located at the upper end of the rotating joint 310, the stability of the installation connection of the entire water pipe structure can be significantly improved through the provision of the locking sleeve 340.

[0093] Optionally, a connecting short tube 350 may be inserted into one end of the outer tube 200, and a second flow channel communicating with the first flow channel 201 is provided in the connecting short tube 350, and the connecting short tube 350 extends outward to be connected with other components such as a sewage suction structure. The locking sleeve 340 may be provided outside one end of the outer tube 200, and the connecting short tube 350 is provided in the outer tube 200 in the locking sleeve 340. By providing the locking sleeve 340, the connecting short tube 350 and the outer tube 200 can be more closely connected together, thereby improving the stability of the installation connection.

[0094] In some embodiments, an annular boss 204 is provided on the outer wall of the outer tube 200, and the joint 310 and the locking sleeve 340 are respectively provided at the lower end and the upper end of the annular boss 204, the bottom end of the locking sleeve 340 is connected to the outer peripheral surface of the annular boss 204, and the top surface of the joint 310 is abutted against the lower side surface of the annular boss 204.

[0095] The cooperation between the locking sleeve 340 and the annular boss 204 can prevent the joint 310 from falling off the outer tube 200, and can limit the axial movement of the joint 310. For example, by providing the annular boss 204 or the locking sleeve 340, the rotating joint 310 or the first clamping ring 320 can be prevented from moving upward in the axial direction, and the axial movement of the rotating joint 310 or the first clamping ring 320 can be limited.

[0096] In some embodiments, the locking sleeve 340 is threadedly connected to the outer tube 200. For example, a screw-on portion is provided above the annular boss 204 of the outer tube 200, the outer circumferential surface of the screw-on portion is provided with an external thread, the inner side of the locking sleeve 340 is provided with an internal thread 341 that matches the external thread, and the locking sleeve 340 is threadedly connected to the screw-on portion. In this way, by connecting the locking sleeve 340 and the outer tube 200 in a threaded connection manner, the locking sleeve 340 is convenient for installation, replacement, and maintenance.

[0097] like Figures 3 to 5 As shown, in some embodiments, the interior of the inner tube 100 has a first channel 101 for circulating a first fluid, and both ends of the inner tube 100 are respectively connected to a connecting structure 311 and a clean water outlet 401 of a water tank 400 in the cleaning robot, and the first channel 101 maintains flow communication with the clean water outlet 401.

[0098] Optionally, one side of the outer tube 200 is provided with a nozzle, which is connected to the first flow channel 201 , and the clean water in the water tank 400 is sprayed out by the nozzle through the clean water outlet 401 , the first channel 101 , the connecting structure 311 and the first flow channel 201 .

[0099] In the inner tube 100, the first telescopic tube body 110, the inner tube body 120 and the second telescopic tube body 130 are connected in sequence, and the first telescopic tube body is connected to the connection structure 311 of the joint 310, and the second telescopic tube body 130 is connected to the water tank 400. Specifically, the water tank 400 has a clean water outlet 401, and the second telescopic tube body 130 is connected to the clean water outlet 401 of the water tank 400; an opening can be provided on the side wall of the end of the outer tube 200 away from the water tank 400, and the opening can be used as a water spraying port, and the water spraying port is connected to the first flow channel 201 inside the outer tube 200, and a nozzle or a nozzle can be provided at the water spraying port. Therefore, the clean water in the water tank 400 can flow out through the clean water outlet 401, pass through the second telescopic tube body 130, the inner tube body 120, the first telescopic tube body 110, the connection structure 311 and the first flow channel 201 in sequence, and then be sprayed out by the nozzle at the water spraying port, so as to clean the product to be cleaned.

[0100] In some embodiments, a second channel 202 for the second fluid to flow is provided between the outer wall of the inner tube 100 and the inner wall of the outer tube 200; the water tank 400 in the cleaning robot has a sewage collection part, and the second channel 202 is connected to the sewage collection part by water. Exemplarily, the sewage collection part of the water tank 400 has a sewage inlet 402, one end of the outer tube 200 is connected to the sewage inlet 402, and the other end of the outer tube 200 is provided with a sewage suction structure, which can be arranged at an end of the outer tube 200 away from the water tank 400, and the sewage suction structure is connected to the space between the outer tube 200 and the inner tube 100, that is, 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 inlet 402. Thus, the sewage is sucked by the sewage suction structure, and then the sucked sewage passes through the second channel 202 and enters the sewage receiving chamber of the water tank 400 through the sewage inlet 402. Among them, the specific structure of the sewage suction structure can refer to the prior art, and this embodiment does not limit this.

[0101] In some embodiments, a cleaning robot is also provided, which includes a water tank 400 and the aforementioned water pipe assembly that maintains water communication with the water tank 400 .

[0102] Optionally, the cleaning robot can be a fabric cleaning machine, a floor scrubber, etc. The cleaning robot can include a handheld suction head or a brush head, etc. This embodiment does not limit the specific type of the cleaning robot. The cleaning robot using the above-mentioned water pipe assembly can avoid the entanglement and knotting of the water pipe, especially the inner pipe 100 therein, and because the built-in inner pipe 100 has a good telescopic function, a certain proportion of the external bellows can be telescoped during operation to maintain flexibility. The built-in water pipe is not subject to excessive pulling force, and the use is more flexible, convenient and quick, which prolongs the service life of the water pipe and optimizes the user experience.

[0103] It should be understood that the above-mentioned cleaning robot may also include conventional device components in a cleaning robot, such as a controller and a display. The specific structure and working principle of these conventional components can refer to the prior art. This embodiment does not limit this and will not be described in detail here.

[0104] Parts not described in detail in the specification of the present invention are well known to those skilled in the art.

[0105] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A water pipe assembly, characterized in that: The water pipe assembly comprises: an outer pipe, an inner pipe arranged inside the outer pipe, and a connecting assembly between the outer pipe and the inner pipe; Wherein, the inner tube comprises at least a partially retractable tube body, so that the inner tube can be retracted along its length direction; The connection assembly comprises a joint, a first clamping ring and a second clamping ring, wherein the joint is sleeved on the outside of the outer tube and can rotate around the circumference of the outer tube; The joint is provided with a connection structure inside, the outer tube has a first flow channel for the first fluid to flow inside, one end of the connection structure is connected to one end of the first flow channel, the other end of the connection structure is connected to one end of the inner tube, and the connection structure is rotatable relative to the first flow channel; The first flow channel is in communication with the interior of the inner tube through the connecting structure; The first clamp ring and the second clamp ring are respectively arranged between the outer tube and the joint; the first clamp ring and the second clamp ring are respectively rotatably matched with the outer tube, so that the joint is suitable for being rotatable relative to the outer tube; The first clamping ring is clamped with the joint; the second clamping ring is located below the first clamping ring and is used to limit the movement of the first clamping ring along the axial 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; 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 arranged between the clamping section and the outer tube; a plurality of spaced clamping protrusions are arranged on the outer edge circumference of the first clamping ring, and the clamping section is provided with a clamping interface corresponding to the clamping protrusion, and the clamping protrusion is clamped with the clamping interface; a portion of the outer tube corresponding to the clamping section is provided with an annular groove, and the second clamping ring is arranged in the annular groove.

2. The water pipe assembly according to claim 1, characterized in that: The first collar is in an annular structure; The second collar is in a C-shaped structure.

3. The water pipe assembly according to any one of claims 1 to 2, characterized in that: The water pipe assembly also includes a locking sleeve, which is sleeved on the outside of the outer pipe and located at an end of the joint away from the inner pipe.

4. The water pipe assembly according to claim 3, characterized in that: The outer side wall of the outer tube is provided with an annular boss, the joint and the locking sleeve are respectively provided at the lower end and the upper end of the annular boss, the bottom end of the locking sleeve is connected to the outer peripheral surface of the annular boss, and the top surface of the joint is in contact with the lower side surface of the annular boss; And / or, the locking sleeve is threadably connected to the outer pipe.

5. The water pipe assembly according to any one of claims 1 to 2, characterized in that: The inner tube has a first channel for the circulation of a first fluid. Both ends of the inner tube are respectively connected to the connection structure and the clean water outlet of a water tank in the cleaning robot. The first channel maintains flow communication with the clean water outlet.

6. The water pipe assembly according to any one of claims 1 to 2, characterized in that: A second channel for a second fluid to flow is provided between the outer wall of the inner tube and the inner wall of the outer tube; the first fluid is clean water, and the second fluid is sewage; The water tank in the cleaning robot has a sewage collecting portion, and the second channel is in water communication with the sewage collecting portion.

7. A cleaning robot, characterized in that: The water pipe assembly comprises a water tank and the water pipe assembly as claimed in any one of claims 1 to 6 which is in water communication with the water tank.

Images