Pipe assembly and cleaning equipment

Abstract

The utility model provides a pipe assembly and cleaning equipment, the pipe assembly comprises a first rigid pipe, a second rigid pipe and a connecting unit, the connecting unit comprises a first connector, a second connector and a locking and unlocking piece, the first connector is connected to the first rigid pipe, the second connector is connected to the second rigid pipe, the first connector comprises a first connecting part, and the second connector comprises a second connecting part; the first connector comprises a first connecting part, the second connector comprises a second connecting part, the first connecting part is provided with a locking groove, the second connecting part is provided with a connecting hole, and the locking and unlocking piece comprises a body and a locking part; the body is rotationally arranged in the connecting hole, the locking part is connected to the side, facing the first connecting part, of the body, the locking part is sequentially inserted into the connecting hole and the locking groove, and the body drives the locking part to rotate relative to the locking groove so that the first connecting part and the second connecting part can be locked or unlocked. The pipe assembly is high in locking and unlocking reliability and low in cost.

Description

Technical Field

[0001] The present application relates to the technical field of environmental cleaning appliances, and in particular to a pipe assembly and a cleaning device. Background Art

[0002] With the development of science and technology and the improvement of living standards, household cleaning equipment such as vacuum cleaners and floor scrubbers have become increasingly popular and have more and more functions.

[0003] The cleaning device may include a main unit, a floor brush and a connecting rod, wherein the two ends of the connecting rod are respectively connected to the main unit and the floor brush, wherein the connecting rod can not only mechanically connect the main unit and the floor brush, but also establish an electrical connection between the main unit and the floor brush, and the main unit has a suction component and a dust collection component, and the suction force generated by the suction component is transmitted to the floor brush through the connecting rod, and then the dust and other impurities on the ground are collected into the dust collection component through the floor brush. In the related art, the connecting rod can be a rigid straight rod, or the connecting rod can couple two rigid straight rods together through a locking mechanism, and the locking mechanism can be unlocked when necessary so that the two rigid straight rods can be bent.

[0004] However, the locking mechanism in the related art is locked or unlocked by pressing, and has low reliability. Utility Model Content

[0005] Based on this, the present application provides a tube assembly and a cleaning device to solve the deficiencies in the related art.

[0006] In a first aspect, the present application provides a pipe assembly, comprising a first rigid pipe, a second rigid pipe and a connection unit, wherein the connection unit comprises a first joint, a second joint and a locking and unlocking member, wherein the first joint is connected to the first rigid pipe, and the second joint is connected to the second rigid pipe;

[0007] The first joint includes a first connecting part, the second joint includes a second connecting part, the second connecting part is spanned on the first connecting part, the first connecting part has a locking groove, the second connecting part has a connecting hole, the locking and unlocking member includes a main body and a locking part, the main body is rotatably arranged in the connecting hole, the locking part is connected to a side of the main body facing the first connecting part, the locking part is sequentially inserted into the connecting hole and the locking groove, and the main body drives the locking part to rotate relative to the locking groove to lock or unlock the first connecting part and the second connecting part.

[0008] The pipe assembly provided in the embodiment of the present application is provided with a connection hole for rotating and installing the locking and unlocking member on the second connection part, and a locking groove is provided for cooperating with the locking part to lock and unlock the first connection part and the second connection part, and a body is provided for driving the locking part to rotate so that the locking part is disengaged from the first connection part from the locking groove, thereby unlocking the first connection part and the second connection part, or the first connection part is stopped between the locking part and the body, thereby locking the first connection part and the second connection part. In this way, the pipe assembly of the embodiment of the present application adopts a twist-type locking and unlocking method, which improves the unlocking reliability and locking reliability of the connection unit, and reduces the cost of the pipe assembly.

[0009] In a possible implementation, when the extension direction of the locking portion and the extension direction of the locking groove have an angle, the first connection portion and the second connection portion are locked, and when the extension direction of the locking portion and the extension direction of the locking groove are consistent, the first connection portion and the second connection portion are unlocked.

[0010] In this way, when the extension direction of the locking portion and the extension direction of the locking groove have an included angle, the first connection portion is stopped between the locking portion and the body, and the locking portion cannot escape from the locking groove, thereby effectively locking the first connection portion and the second connection portion. When the extension direction of the locking portion is consistent with the extension direction of the locking groove, the locking portion can escape from the locking groove, thereby unlocking the first connection portion and the second connection portion.

[0011] In a possible implementation, a flexible tube is further included, which is connected between the first rigid tube and the second rigid tube. The connecting unit has a receiving cavity. When the first connecting part and the second connecting part are locked, the flexible tube is received in the receiving cavity.

[0012] In this way, when the first connecting part and the second connecting part are locked, the flexible tube can connect the first rigid tube and the second rigid tube, and the flexible tube can be accommodated in the accommodating cavity to improve the overall aesthetics; when the first connecting part and the second connecting part are unlocked, the first rigid tube and the second rigid tube are flexibly connected through the flexible tube, and the first rigid tube can be bent at multiple angles relative to the second rigid tube, thereby facilitating users to clean the area under the furniture.

[0013] In a possible implementation, the locking and unlocking member further includes a limiting portion, the limiting portion and the locking portion are connected to the same side of the body, the connecting hole includes a first hole segment and a second hole segment that are connected in sequence, the first hole segment is located at one end of the second hole segment facing the locking groove, and the projection of the second hole segment on the first hole segment is located within the first hole segment;

[0014] The limiting portion is located in the first hole section, and the end surface of the first hole section facing away from the locking groove is stopped between the limiting portion and the body.

[0015] In this way, when the limiting portion has a tendency to move away from the first connecting portion, the end surface of the first hole segment away from the locking groove can block the limiting portion, thereby limiting the axial displacement of the locking and unlocking member along the connecting hole, thereby preventing the locking and unlocking member from detaching from the connecting hole.

[0016] In a possible implementation, the first hole segment is also provided with a limiting rib, which extends along the circumference of the first hole segment. When the first connecting part and the second connecting part are locked, the limiting part and the first end of the limiting rib abut against each other. When the first connecting part and the second connecting part are unlocked, the limiting part and the second end of the limiting rib abut against each other.

[0017] In this way, it is convenient for the user to twist and turn it into place at one time, thereby improving the operational convenience of unlocking or locking the connection unit.

[0018] In a possible implementation, there are two limiting portions, the two limiting portions are symmetrically arranged on both sides of the extension direction of the locking portion, and the limiting ribs are arranged in a one-to-one correspondence with the limiting portions.

[0019] In this way, the effect of the limiting portion in limiting the axial displacement of the locking and unlocking member along the connecting hole can be improved, while the coordination effect between the limiting portion and the limiting rib can be improved, thereby improving the operational convenience of unlocking and locking.

[0020] In a possible implementation, the connecting hole also includes a third hole segment, the first hole segment, the second hole segment and the third hole segment are connected in sequence, the projection of the second hole segment on the third hole segment is located in the third hole segment, and the body is at least partially located in the third hole segment.

[0021] In this way, the locking and unlocking member can be rotated and set on the second connecting part through the connecting hole. The locking and unlocking member is not easy to fall out of the connecting hole, and it is convenient to bury the main body in the third hole segment, so that the main body will not protrude from the connecting hole, thereby improving the aesthetics of the pipe assembly.

[0022] In a possible implementation manner, the locking groove extends along the axial direction of the first rigid tube.

[0023] In this way, the locking groove can extend along the axial direction of the first rigid tube to form an elongated locking groove. When the locking part is rotated to have an angle with the axial direction of the first rigid tube, the first connecting part and the second connecting part are locked. When rotated to be consistent with the axial direction of the first rigid tube, the first connecting part and the second connecting part are unlocked.

[0024] In a possible implementation, the first joint further includes a first hinged portion, and the second joint further includes a second hinged portion, and the first hinged portion is hinged to the second hinged portion.

[0025] In this way, when the first connecting part and the second connecting part are unlocked, the first joint and the second joint can be hingedly connected through the first hinge part and the second hinge part, and at the same time, the first rigid tube and the second rigid tube are flexibly connected through the flexible tube, so that the first rigid tube can rotate around the hinge center of the first hinge part and the second hinge part, so that the first rigid tube can be bent to different angles relative to the second rigid tube.

[0026] In a possible implementation, the first hinged portion and the first connecting portion are located at one axial end of the first joint, and the first hinged portion and the first connecting portion are located at two radial sides of the first joint;

[0027] The second hinged portion and the second connecting portion are located at one axial end of the second joint, and the second hinged portion and the second connecting portion are located at two radial sides of the first joint.

[0028] In this way, when the first joint and the second joint are unlocked, the first rigid tube and the second rigid tube are easy to bend relative to each other. At the same time, when the first joint and the second joint are locked, the radial sides of the first joint and the second joint can be rigidly connected by the first hinge part and the second hinge part, the first connecting part and the second connecting part respectively, so that the first rigid tube and the second rigid tube together form a rigid straight tube.

[0029] In a possible implementation, the first joint has a first accommodating cavity, the second joint has a second accommodating cavity, and when the first connecting portion is locked with the second connecting portion, the first accommodating cavity and the second accommodating cavity together form a receiving cavity.

[0030] In this way, when the first joint and the second joint are unlocked, the flexible tube can bend freely due to the separation of the first accommodating cavity and the second accommodating cavity. When the first joint and the second joint are locked, the first accommodating cavity and the second accommodating cavity together form a accommodating cavity to compress the flexible tube to a certain length and then accommodate it in the accommodating cavity.

[0031] In a possible implementation, the first connection portion is recessed relative to an outer surface of the first joint, the first connection portion and the second connection portion are matched in shape, and when the first connection portion and the second connection portion are locked, the second connection portion is located inside the first connection portion.

[0032] In this way, the second connection part can be buried in the first connection part, so that the second connection part does not protrude from the first connection part. When the first connection part and the second connection part are locked, the outer surface of the connection unit is smoother, thereby improving the aesthetics of the pipe assembly.

[0033] In a second aspect, the present application provides a cleaning device, including a device main body and the pipe assembly provided in the first aspect, wherein the pipe assembly is connected to the device main body.

[0034] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the tube assembly and cleaning equipment provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 A schematic diagram of the structure of a pipe assembly provided in an embodiment of the present application;

[0037] Figure 2 for Figure 1 AA section view;

[0038] Figure 3 A schematic diagram of the structure of the tube assembly provided in an embodiment of the present application when bent;

[0039] Figure 4 for Figure 1 Exploded diagram of

[0040] Figure 5 for Figure 2 A partial enlarged view of point B in the middle;

[0041] Figure 6 A schematic diagram of the structure of a connecting unit in a pipe assembly provided in an embodiment of the present application;

[0042] Figure 7 Another structural schematic diagram of a connecting unit in a pipe assembly provided in an embodiment of the present application;

[0043] Figure 8 This is another structural schematic diagram of the connecting unit in the pipe assembly provided in the embodiment of the present application;

[0044] Fig. 9 A schematic diagram of the structure of the locking and unlocking components in the pipe assembly provided in an embodiment of the present application.

[0045] Description of reference numerals:

[0046] 100 - a first rigid tube;

[0047] 200 - second rigid tube;

[0048] 300-connection unit; 310-first joint; 311-first connection part; 3111-locking groove; 312-first hinged part; 313-first accommodating chamber; 320-second joint; 321-second connection part; 3211-connection hole; 3211a-first hole section; 3211b-second hole section; 3211c-limiting rib; 3211d-third hole section; 322-second hinged part; 323-second accommodating chamber; 330-locking and unlocking member; 331-body; 332-locking part; 333-limiting part; 340-accommodating chamber;

[0049] 400-Flexible tube. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0051] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] The terms "first", "second", "third" (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0054] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0055] The cleaning device may include a main unit, a floor brush and a connecting rod, wherein the two ends of the connecting rod are respectively connected to the main unit and the floor brush, wherein the connecting rod can not only mechanically connect the main unit and the floor brush, but also establish an electrical connection between the main unit and the floor brush, and the main unit has a suction component and a dust collection component, and the suction force generated by the suction component is transmitted to the floor brush through the connecting rod, and then the dust and other impurities on the ground are collected into the dust collection component through the floor brush. In the related art, the connecting rod can be a rigid straight rod, or the connecting rod can couple two rigid straight rods together through a locking mechanism, and the locking mechanism can be unlocked when necessary so that the two rigid straight rods can be bent.

[0056] However, the locking mechanism in the related art is locked or unlocked by pressing, which requires a spring. If the spring becomes less elastic after long-term use, the locking mechanism cannot be locked or unlocked normally, resulting in low reliability of the locking mechanism. Moreover, the overall structure of the pressing locking mechanism is relatively complex, which increases the cost of the cleaning equipment.

[0057] In view of this, the present application provides a tube assembly and a cleaning device, by setting a locking groove on the first connecting part and a connecting hole on the second connecting part, so that after the locking part is inserted into the connecting hole and the locking groove in sequence, it rotates relative to the locking groove driven by the main body, thereby locking or unlocking the locking part and the first connecting part, thereby locking or unlocking the first connecting part and the second connecting part. In this way, the connecting unit is locked or unlocked by twisting, so as to solve the shortcomings of the press-to-lock and unlock method in the related art.

[0058] The specific implementation of the pipe assembly and the cleaning device provided in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0059] Reference Figures 1 to 9As shown, the pipe assembly provided in the embodiment of the present application includes a first rigid pipe 100, a second rigid pipe 200 and a connecting unit 300, the connecting unit 300 includes a first joint 310, a second joint 320 and a locking and unlocking member 330, the first joint 310 is connected to the first rigid pipe 100, and the second joint 320 is connected to the second rigid pipe 200.

[0060] The first joint 310 includes a first connecting portion 311, and the second joint 320 includes a second connecting portion 321, the second connecting portion 321 is mounted on the first connecting portion 311, the first connecting portion 311 has a locking groove 3111, and the second connecting portion 321 has a connecting hole 3211. The locking and unlocking member 330 includes a main body 331 and a locking portion 332, the main body 331 is rotatably arranged in the connecting hole 3211, the locking portion 332 is connected to a side of the main body 331 facing the first connecting portion 311, the locking portion 332 is sequentially inserted into the connecting hole 3211 and the locking groove 3111, and the main body 331 drives the locking portion 332 to rotate relative to the locking groove 3111 so that the first connecting portion 311 is locked or unlocked with the second connecting portion 321.

[0061] It should be noted that the first rigid tube 100 has a first preset position and a second preset position relative to the second rigid tube 200. When the first rigid tube 100 is in the first preset position, the first rigid tube 100 is coaxially connected to the second rigid tube 200. At this time, the first joint 310 and the second joint 320 used to connect the first rigid tube 100 and the second rigid tube 200 are locked with each other, so that the first rigid tube 100 and the second rigid tube 200 are combined into a straight tube, thereby facilitating users to quickly clean the exposed area.

[0062] When the first rigid tube 100 is in the second preset position, the axial direction of the first rigid tube 100 and the axial direction of the second rigid tube 200 form an angle. At this time, the first joint 310 and the second joint 320 are unlocked to decouple the first rigid tube 100 from the second rigid tube 200, so that the first rigid tube 100 can be bent relative to the second rigid tube 200, thereby facilitating the user to clean the area hidden under the furniture.

[0063] In the present application, the first connection part 311 and the second connection part 321 are connected by a locking and unlocking member 330, so that the first connection part 311 and the second connection part 321 are locked together, thereby making the first rigid tube 100 and the second rigid tube 200 form a straight tube, or the locking and unlocking member 330 can also unlock the first connection part 311, thereby separating the first connection part 311 and the second connection part 321, thereby making the first rigid tube 100 bendable relative to the second rigid tube 200.

[0064] Specifically, the first connection part 311 has a locking groove 3111, the second connection part 321 has a connecting hole 3211, and the locking and unlocking member 330 is rotatably arranged on the second connection part 321. The locking and unlocking member 330 may include a main body 331 and a locking part 332 that are connected to each other. External force is applied to the main body 331 to drive the main body 331 to rotate, and then the locking part 332 is driven to rotate through the main body 331, so that the locking part 332 can be disengaged from the locking groove 3111, so that the first connection part 311 and the second connection part 321 are disconnected, thereby unlocking the connection unit 300, or, the locking part 332 is driven to rotate through the main body 331, so that the first connection part 311 is stopped between the locking part 332 and the main body 331, so that the first connection part 311 and the second connection part 321 are connected together, thereby locking the connection unit 300.

[0065] Compared with the push-type locking and unlocking method in the related art, the connection unit 300 of the embodiment of the present application adopts a knob-type locking and unlocking method, which does not need to rely on the elastic force of the spring. It is not only simpler in structure and can reduce processing costs, but also has higher reliability.

[0066] The pipe assembly provided in the embodiment of the present application includes a first rigid pipe 100, a second rigid pipe 200 and a connecting unit 300, the connecting unit 300 includes a first joint 310, a second joint 320 and a locking and unlocking member 330, the first joint 310 includes a first connecting portion 311, the second joint 320 includes a second connecting portion 321, the first connecting portion 311 includes a locking groove 3111, the second connecting portion 321 includes a connecting hole 3211, and the locking and unlocking member 330 includes a main body 331 and a locking portion 332. The connection unit 300 is provided to couple and decouple the first rigid tube 100 and the second rigid tube 200, so that the first rigid tube 100 and the second rigid tube 200 have at least two different forms, thereby facilitating the user to clean different areas, the connection hole 3211 is provided to allow the locking and unlocking member 330 to be rotatably installed on the second connection part 321, the locking groove 3111 is provided to cooperate with the locking part 332 to lock and unlock the first connection part 311 and the second connection part 321, the body 331 is provided to drive the locking part 332 to rotate, and the locking part 332 is rotated to make the locking part 332 disengage from the locking groove 3111 of the first connection part 311, thereby unlocking the first connection part 311 and the second connection part 321, or the first connection part 311 is stopped between the locking part 332 and the body 331, thereby locking the first connection part 311 and the second connection part 321. In this way, the pipe assembly of the embodiment of the present application adopts a twist-type locking and unlocking method, which improves the unlocking reliability and locking reliability of the connection unit 300, and reduces the cost of the pipe assembly.

[0067] In some embodiments, when the extension direction of the locking portion 332 has an angle with the extension direction of the locking groove 3111, the first connection portion 311 and the second connection portion 321 are locked, and when the extension direction of the locking portion 332 is consistent with the extension direction of the locking groove 3111, the first connection portion 311 and the second connection portion 321 are unlocked.

[0068] In this way, when the extension direction of the locking portion 332 and the extension direction of the locking groove 3111 have an angle, since the first connection portion 311 is stopped between the locking portion 332 and the body 331, the locking portion 332 cannot be disengaged from the locking groove 3111, and the first connection portion 311 and the second connection portion 321 can be effectively connected together, thereby effectively locking the first connection portion 311 and the second connection portion 321. When the extension direction of the locking portion 332 is consistent with the extension direction of the locking groove 3111, the locking portion 332 can be disengaged from the locking groove 3111, and the first connection portion 311 and the second connection portion 321 are disconnected, thereby unlocking the first connection portion 311 and the second connection portion 321, and at this time, the locking and unlocking member 330 is still rotationally connected to the second connection portion 321.

[0069] Reference Figures 2 to 4 As shown, in a possible implementation, the tube assembly also includes a flexible tube 400, which is connected between the first rigid tube 100 and the second rigid tube 200. The connecting unit 300 has a receiving cavity 340. When the first connecting part 311 and the second connecting part 321 are locked, the flexible tube 400 is received in the receiving cavity 340.

[0070] That is to say, when the first rigid tube 100 is in the first preset position, since the first rigid tube 100 and the second rigid tube 200 are combined into a straight tube, at this time, the first rigid tube 100 and the second rigid tube 200 are rigidly connected, the flexible tube 400 can connect the first rigid tube 100 and the second rigid tube 200, and for the overall aesthetics, the flexible tube 400 can be accommodated in the accommodating cavity 340. When the first rigid tube 100 is in the second preset position, the first rigid tube 100 and the second rigid tube 200 are flexibly connected through the flexible tube 400. The first rigid tube 100 can be bent at multiple angles relative to the second rigid tube 200, and can be bent to a maximum of overlapping angles, thereby facilitating users to clean the area under the furniture.

[0071] Reference Figure 5 and Fig. 9As shown, in a possible implementation, the locking and unlocking member 330 further includes a limiting portion 333, the limiting portion 333 and the locking portion 332 are connected to the same side of the body 331, the connecting hole 3211 includes a first hole section 3211a and a second hole section 3211b that are connected in sequence, the first hole section 3211a is located at one end of the second hole section 3211b facing the locking groove 3111, and the projection of the second hole section 3211b on the first hole section 3211a is located in the first hole section 3211a. The limiting portion 333 is located in the first hole section 3211a, and the end surface of the first hole section 3211a that is away from the locking groove 3111 is stopped between the limiting portion 333 and the body 331.

[0072] It can be understood that since the locking and unlocking member 330 is rotatably set in the connecting hole 3211, in order to prevent the locking and unlocking member 330 from disengaging from the connecting hole 3211, the connecting hole 3211 can be set to a first hole section 3211a and a second hole section 3211b with different apertures, wherein the aperture of the first hole section 3211a is larger than the aperture of the second hole section 3211b. When the locking and unlocking member 330 has a tendency to move away from the first connecting portion 311, the end surface of the first hole section 3211a that is away from the locking groove 3111 can block the limiting portion 333. In this way, the locking and unlocking member 330 can be limited in displacement along the axial direction of the connecting hole 3211 by the cooperation between the limiting portion 333 and the end surface of the first hole section 3211a that is away from the locking groove 3111, thereby preventing the locking and unlocking member 330 from disengaging from the connecting hole 3211.

[0073] Reference Figure 5 and Figure 8 As shown, in some embodiments, the first hole segment 3211a is further provided with a limiting rib 3211c, and the limiting rib 3211c extends along the circumference of the first hole segment 3211a. When the first connection portion 311 and the second connection portion 321 are locked, the limiting portion 333 abuts against the first end of the limiting rib 3211c. When the first connection portion 311 and the second connection portion 321 are unlocked, the limiting portion 333 abuts against the second end of the limiting rib 3211c.

[0074] With such a configuration, when the user rotates the body 331 forward until the limiting portion 333 abuts against the first end of the limiting rib 3211c, the body 331 cannot be driven to rotate forward any further. At this time, the body 331 can only rotate in the reverse direction, and the first connection portion 311 and the second connection portion 321 are locked. When the user rotates the body 331 in the reverse direction until the limiting portion 333 abuts against the second end of the limiting rib 3211c, the body 331 cannot be driven to rotate in the reverse direction any further. At this time, the body 331 can only rotate in the forward direction, and the first connection portion 311 and the second connection portion 321 are unlocked. The above configuration makes it easy for the user to rotate the body 331 in place at one time, thereby improving the convenience of unlocking or locking the connection unit 300.

[0075] For example, when the connection unit 300 is in a locked state, the user can unlock it by turning it 90 degrees clockwise, so that the first rigid tube 100 can be bent relative to the second rigid tube 200. After the locking portion 332 passes through the locking groove 3111, the user can turn it counterclockwise 90 degrees so that the first connection portion 311 is stopped between the locking portion 332 and the body 331 to prevent the locking portion 332 from being separated from the locking groove 3111.

[0076] In some embodiments, there are two limiting portions 333 , which are symmetrically disposed on both sides of the extending direction of the locking portion 332 , and the limiting ribs 3211 c are disposed in one-to-one correspondence with the limiting portions 333 .

[0077] Such a configuration can improve the effect of the limiting portion 333 in limiting the axial displacement of the locking and unlocking member 330 along the connecting hole 3211, while improving the coordination effect between the limiting portion 333 and the limiting rib 3211c, thereby improving the convenience of unlocking and locking operations.

[0078] Reference Figure 5 and Fig. 9 As shown, in a possible implementation, the connecting hole 3211 also includes a third hole segment 3211d, the first hole segment 3211a, the second hole segment 3211b and the third hole segment 3211d are connected in sequence, the projection of the second hole segment 3211b on the third hole segment 3211d is located in the third hole segment 3211d, and the main body 331 is at least partially located in the third hole segment 3211d.

[0079] That is to say, the aperture of the third hole segment 3211d is larger than the aperture of the second hole segment 3211b. Since the two ends of the connecting hole 3211 are large and the middle is small, the locking and unlocking member 330 can be rotatably set on the second connecting portion 321 through the connecting hole 3211. At the same time, the locking and unlocking member 330 is not easy to escape from the connecting hole 3211, and it is convenient to bury the main body 331 in the third hole segment 3211d, so that the main body 331 will not protrude from the connecting hole 3211, thereby improving the aesthetics of the pipe assembly.

[0080] Reference Figure 6 and Figure 8 As shown, in some embodiments, the locking groove 3111 extends along the axial direction of the first rigid tube 100. In this way, the locking groove 3111 can extend along the axial direction of the first rigid tube 100 to form an elongated locking groove 3111, and when the locking portion 332 is rotated to have an angle with the axial direction of the first rigid tube 100, the first connecting portion 311 and the second connecting portion 321 are locked, and when rotated to be consistent with the axial direction of the first rigid tube 100, the first connecting portion 311 and the second connecting portion 321 are unlocked.

[0081] Reference Figure 3 and Figure 7As shown, in a possible implementation, the first joint 310 further includes a first hinged portion 312 , and the second joint 320 further includes a second hinged portion 322 , and the first hinged portion 312 is hinged to the second hinged portion 322 .

[0082] In this way, when the first connecting part 311 and the second connecting part 321 are unlocked, the first joint 310 and the second joint 320 can be hingedly connected through the first hinge part 312 and the second hinge part 322, and at the same time, the first rigid tube 100 and the second rigid tube 200 are flexibly connected through the flexible tube 400, so that the first rigid tube 100 can rotate around the hinge center of the first hinge part 312 and the second hinge part 322, so that the first rigid tube 100 can be bent to different angles relative to the second rigid tube 200.

[0083] It should be understood that when the first connection part 311 and the second connection part 321 are locked, a rigid connection is formed between the first connection part 311 and the second connection part 321, and a rigid connection is also formed between the first hinge part 312 and the second hinge part 322, thereby making the first rigid tube 100 and the second rigid tube 200 rigidly connected.

[0084] In some embodiments, the first hinge portion 312 and the first connection portion 311 are located at one axial end of the first joint 310, and the first hinge portion 312 and the first connection portion 311 are located at both radial sides of the first joint 310. The second hinge portion 322 and the second connection portion 321 are located at one axial end of the second joint 320, and the second hinge portion 322 and the second connection portion 321 are located at both radial sides of the first joint 310.

[0085] With such arrangement, when the first joint 310 and the second joint 320 are unlocked, the first rigid tube 100 and the second rigid tube 200 are conveniently bent relative to each other, and at the same time, when the first joint 310 and the second joint 320 are locked, the radial sides of the first joint 310 and the second joint 320 can be rigidly connected by the first hinge part 312 and the second hinge part 322, and the first connection part 311 and the second connection part 321, respectively, so that the first rigid tube 100 and the second rigid tube 200 are combined to form a rigid straight tube.

[0086] Reference Figure 2 and Figure 7 As shown, in a specific implementation, the first joint 310 has a first accommodating cavity 313 , and the second joint 320 has a second accommodating cavity 323 . When the first connecting portion 311 and the second connecting portion 321 are locked, the first accommodating cavity 313 and the second accommodating cavity 323 together form a receiving cavity 340 .

[0087] Therefore, when the first joint 310 and the second joint 320 are unlocked, the first accommodating cavity 313 and the second accommodating cavity 323 are separated, so that the flexible tube 400 can bend freely. When the first joint 310 and the second joint 320 are locked, the first accommodating cavity 313 and the second accommodating cavity 323 together form a accommodating cavity 340, so that the flexible tube 400 can be compressed to a certain length and then accommodated in the accommodating cavity 340.

[0088] In one possible implementation, the first connection portion 311 is recessed relative to the outer surface of the first joint 310 , and the shapes of the first connection portion 311 and the second connection portion 321 are matched. When the first connection portion 311 and the second connection portion 321 are locked, the second connection portion 321 is located inside the first connection portion 311 .

[0089] In this way, the second connection part 321 can be buried in the first connection part 311, so that the second connection part 321 does not protrude from the first connection part 311. When the first connection part 311 and the second connection part 321 are locked, the outer surface of the connection unit 300 is smoother, thereby improving the aesthetics of the pipe assembly.

[0090] In addition, an embodiment of the present application also provides a cleaning device, which includes a device main body and a pipe assembly provided in the aforementioned embodiment, and the pipe assembly is connected to the device main body.

[0091] It is understandable that the cleaning device can also include a floor brush. The tube assembly has a hollow airflow channel. The two ends of the airflow channel are respectively connected to the device main body and the floor brush. The device main body can provide suction force, and the dirt on the ground can be sucked into the device main body through the floor brush and the airflow channel in turn.

[0092] For example, the first rigid tube 100 is connected to the floor brush, and the second rigid tube 200 is connected to the device host.

[0093] The tube assembly provided in the embodiment of the present application can be straightened or bent according to the needs of cleaning, and the locking and unlocking of the tube assembly is convenient and reliable, thereby improving the operational convenience of the cleaning equipment.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pipe assembly, characterized in that: The invention comprises a first rigid tube (100), a second rigid tube (200) and a connection unit (300), wherein the connection unit (300) comprises a first joint (310), a second joint (320) and a locking and unlocking member (330), wherein the first joint (310) is connected to the first rigid tube (100), and the second joint (320) is connected to the second rigid tube (200); The first joint (310) includes a first connecting portion (311), the second joint (320) includes a second connecting portion (321), the second connecting portion (321) is mounted on the first connecting portion (311), the first connecting portion (311) has a locking groove (3111), the second connecting portion (321) has a connecting hole (3211), the locking and unlocking member (330) includes a body (331) and a locking portion (332), the body (331) is rotated The locking portion (332) is arranged in the connecting hole (3211), and is connected to a side of the main body (331) facing the first connecting portion (311). The locking portion (332) is inserted into the connecting hole (3211) and the locking groove (3111) in sequence. The main body (331) drives the locking portion (332) to rotate relative to the locking groove (3111) so that the first connecting portion (311) and the second connecting portion (321) are locked or unlocked.

2. The pipe assembly according to claim 1, characterized in that When the extension direction of the locking portion (332) and the extension direction of the locking groove (3111) form an included angle, the first connecting portion (311) and the second connecting portion (321) are locked; When the extending direction of the locking portion (332) is consistent with the extending direction of the locking groove (3111), the first connecting portion (311) and the second connecting portion (321) are unlocked.

3. The pipe assembly according to claim 1 or 2, characterized in that The invention also comprises a flexible tube (400), wherein the flexible tube (400) is connected between the first rigid tube (100) and the second rigid tube (200), and the connecting unit (300) has a receiving cavity (340), and when the first connecting part (311) and the second connecting part (321) are locked, the flexible tube (400) is received in the receiving cavity (340).

4. The pipe assembly according to claim 1 or 2, characterized in that: The locking and unlocking member (330) further comprises a limiting portion (333), wherein the limiting portion (333) and the locking portion (332) are connected to the same side of the body (331), and the connecting hole (3211) comprises a first hole section (3211a) and a second hole section (3211b) which are connected in sequence, wherein the first hole section (3211a) is located at one end of the second hole section (3211b) facing the locking groove (3111), and a projection of the second hole section (3211b) on the first hole section (3211a) is located within the first hole section (3211a); The limiting portion (333) is located in the first hole section (3211a), and the end surface of the first hole section (3211a) facing away from the locking groove (3111) is stopped between the limiting portion (333) and the body (331).

5. The pipe assembly according to claim 4, characterized in that The first hole section (3211a) is also provided with a limiting rib (3211c), and the limiting rib (3211c) extends along the circumference of the first hole section (3211a). When the first connecting portion (311) and the second connecting portion (321) are locked, the limiting portion (333) abuts against the first end of the limiting rib (3211c); when the first connecting portion (311) and the second connecting portion (321) are unlocked, the limiting portion (333) abuts against the second end of the limiting rib (3211c).

6. The pipe assembly according to claim 5, characterized in that The number of the limiting portions (333) is two, and the two limiting portions (333) are symmetrically arranged on both sides of the extension direction of the locking portion (332), and the limiting ribs (3211c) are arranged in a one-to-one correspondence with the limiting portions (333).

7. The pipe assembly according to claim 4, characterized in that The connecting hole (3211) also includes a third hole segment (3211d), the first hole segment (3211a), the second hole segment (3211b) and the third hole segment (3211d) are connected in sequence, the projection of the second hole segment (3211b) on the third hole segment (3211d) is located in the third hole segment (3211d), and the main body (331) is at least partially located in the third hole segment (3211d).

8. The pipe assembly according to claim 1 or 2, characterized in that The locking groove (3111) extends along the axial direction of the first rigid tube (100).

9. The pipe assembly according to claim 1 or 2, characterized in that The first joint (310) further includes a first hinged portion (312), and the second joint (320) further includes a second hinged portion (322), and the first hinged portion (312) is hingedly connected to the second hinged portion (322).

10. The pipe assembly according to claim 9, characterized in that The first hinged portion (312) and the first connecting portion (311) are located at one axial end of the first joint (310), and the first hinged portion (312) and the first connecting portion (311) are located at two radial sides of the first joint (310); The second hinged portion (322) and the second connecting portion (321) are located at one axial end of the second joint (320), and the second hinged portion (322) and the second connecting portion (321) are located on both radial sides of the first joint (310).

11. The tube assembly according to claim 3, characterized in that The first joint (310) has a first accommodating cavity (313), and the second joint (320) has a second accommodating cavity (323); when the first connecting portion (311) and the second connecting portion (321) are locked, the first accommodating cavity (313) and the second accommodating cavity (323) together form the receiving cavity (340).

12. The pipe assembly according to claim 1 or 2, characterized in that The first connection portion (311) is concave relative to the outer surface of the first joint (310), and the shapes of the first connection portion (311) and the second connection portion (321) are matched. When the first connection portion (311) and the second connection portion (321) are locked, the second connection portion (321) is located inside the first connection portion (311).

13. A cleaning device, characterized in that: It comprises a device host and a tube assembly as described in any one of claims 1 to 12, wherein the tube assembly is connected to the device host.

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