Portable cleaning equipment with connector self-locking function

Abstract

Portable cleaning equipment with a connector self-locking function is provided with a liquid storage cavity and a flushing pipeline, and an external flushing pipeline is not needed. The outer joint of the flushing pipeline is provided with an expansion interface assembly, the expansion interface assembly is provided with a plug-in interface, the plug-in interface is communicated with the flushing pipeline, and the plug-in interface can be used as a flushing port and can be in butt joint with at least one external functional head so as to expand more cleaning functions.

Description

Technical Field

[0001] The present application relates to a cleaning device, and in particular to a portable cleaning device with a joint self-locking function. Background Art

[0002] Whether in daily life or in industrial production, cleaning equipment is an indispensable tool. For example, it can be used to clean various vehicles, building exteriors, floors, bathtubs, and rooms, etc. It can be used as a tool for washing hands, washing dishes or other daily necessities during outdoor activities.

[0003] In conventional cleaning equipment, the user is required to hold down the water outlet switch during the flushing process, which can easily cause soreness in the user's fingers and fatigue over time. Utility Model Content

[0004] The present application provides a portable cleaning device with a joint self-locking function.

[0005] Based on the above objectives, an embodiment of the present application provides a portable cleaning device, including:

[0006] A housing, wherein the housing has a liquid storage cavity, a waterproof sealing cavity and a pipeline receiving cavity, the liquid storage cavity has a liquid inlet, and the waterproof sealing cavity is sealed and separated from the liquid storage cavity and the pipeline receiving cavity;

[0007] A driving pump, wherein the driving pump is disposed in the waterproof sealed cavity, the liquid storage cavity has a water outlet, and the driving pump is sealed and connected to the water outlet;

[0008] A control unit, the control unit is arranged in the waterproof sealing cavity, the control unit is electrically connected to the driving pump, and is used to control the operation of the driving pump;

[0009] And a flushing pipeline, the flushing pipeline includes a tube body and an external joint for an external functional head, one end of the tube body is sealed and connected to the output end of the driving pump, the other end of the tube body is sealed and connected to the external joint, the external joint has a liquid channel, a control component for controlling the opening and closing of the liquid channel, and a switch self-locking component, and the switch self-locking component can lock the control component in an open position.

[0010] In one embodiment, the switch self-locking component includes a self-locking hook and a self-locking block, one of the self-locking hook and the self-locking block moves with the control component, and the other remains relatively fixed with the liquid channel; one end of the self-locking hook has a hook portion, and the self-locking block has a raised self-locking portion, and the self-locking portion has a first sliding surface, a self-locking groove and a second sliding surface, and the self-locking groove is located between the end of the first sliding surface and the end of the second sliding surface, so that the hook can be locked in the self-locking groove during relative movement with the self-locking block, the front end of the first sliding surface and the front end of the second sliding surface are connected to each other, and the self-locking hook can slide from the second sliding surface to the first sliding surface.

[0011] In one embodiment, the self-locking portion also includes a guide portion; when the control component is not triggered, the hook portion is opposite to the first sliding surface, and the first sliding surface is obliquely arranged relative to the hook portion; when the control component is pressed, the hook portion contacts and moves relative to the self-locking block along the first sliding surface to the position of the self-locking groove, and the self-locking hook produces position deviation and deformation during the relative movement; the guide portion is located in the opening direction of the self-locking groove, and is located on the reset path of the hook portion after it is separated from the first sliding surface, when the hook portion moves relatively to the end beyond the first sliding surface, the hook portion remains at the guide portion or the self-locking groove, and after the external force pressing the control component disappears, the hook portion is locked in the self-locking groove under the elastic restoring force.

[0012] In one embodiment, when the control component is pressed again, a structure is formed between the guide portion and the self-locking groove to guide the hook portion to move from the self-locking groove to the second sliding surface, so that the hook portion is disengaged from the self-locking groove; after the external force pressing the control component disappears, the hook portion returns to its initial position under the elastic restoring force.

[0013] In one embodiment, the self-locking block is mounted on the control assembly, and the self-locking hook and the liquid channel remain relatively fixed.

[0014] In one embodiment, the external joint has a joint housing, a liquid outlet channel assembly and a valve assembly, wherein the liquid outlet channel assembly is mounted on the joint housing, and the liquid outlet channel assembly has the liquid channel and a linkage channel, wherein the linkage channel is connected to the liquid channel; the valve assembly includes a valve core for blocking the liquid channel, and the control assembly includes a transmission member and a command input member, wherein the transmission member is sealed in the linkage channel and can move in the linkage channel, wherein the transmission member and the valve core form a linkage structure, and the command input member and the transmission member form a linkage structure to control the movement of the transmission member and drive the valve core to detach from the sealing port and / or block the sealing port.

[0015] In one embodiment, the valve assembly includes a valve core, which is arranged in the liquid channel. A sealing port is provided in the liquid channel, and the valve core is used to seal the sealing port; the valve core has an inclined unlocking surface, the transmission member has an unlocking inclined surface, the linkage channel is arranged along the radial direction of the liquid channel, and the transmission member is inserted along the radial direction of the liquid channel so that the unlocking inclined surface cooperates with the unlocking surface of the valve core to push the valve core to unlock the sealing port.

[0016] In one embodiment, the valve core has a through unlocking hole, the unlocking hole is communicated with the linkage channel, the unlocking surface is located on the inner hole wall of the unlocking hole, and the unlocking hole is used for the transmission member to be inserted and push the valve core to open the sealing port.

[0017] In one embodiment, the transmission member is provided with a reset elastic member, and the reset elastic member is used to drive the transmission member to move in the direction of opening the sealing port; the valve core assembly also includes a sealing elastic member, and the sealing elastic member acts directly or indirectly on the valve core to provide the valve core with elastic force to drive the valve core to keep blocking the sealing port.

[0018] In one embodiment, one end of the command input member is rotatably connected to the joint housing, and the other end can rotate around its rotation axis. The inner wall of the command input member has a spherical protrusion, and the spherical protrusion has a spherical shape. During the rotation of the command input member, the spherical protrusion can directly or indirectly transmit the transmission member to move into the liquid channel.

[0019] According to the portable cleaning device of the above embodiment, the flushing pipeline includes a tube body and an external connector for an external functional head. The external connector has a liquid channel, a control component for controlling the opening and closing of the liquid channel, and a switch self-locking component. The switch self-locking component can lock the control component in the open position, reducing the difficulty and fatigue of user operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the appearance of a portable cleaning device in an embodiment of the present application, in which the flushing pipeline is partially pulled out of the shell;

[0021] Figure 2 A cross-sectional view of a portable cleaning device in an embodiment of the present application along a vertical direction;

[0022] Figure 3 This is a diagram showing the arrangement of a driving pump, a control unit, a pipeline recovery assembly, and a flushing pipeline in one embodiment of the present application, in which part of the housing is omitted;

[0023] Figure 4This is a schematic diagram of a portable cleaning device in an embodiment of the present application in a folded state, at which time the external connector of the flushing pipeline is received in the external connector accommodating chamber;

[0024] Figure 5 This is a schematic diagram of the structure of the second separator and some other shells in one embodiment of the present application;

[0025] Figure 6 and 7 This is a schematic diagram of an exploded view of a pipeline recovery assembly at different viewing angles in one embodiment of the present application;

[0026] Figure 8 This is a structural schematic diagram of a self-locking guide groove structure and a self-locking component in one embodiment of the present application;

[0027] Fig. 9 A schematic diagram of each guide groove in a self-locking guide groove structure in an embodiment of the present application;

[0028] Fig.10 A cross-sectional view of a pipeline recovery assembly in one embodiment of the present application;

[0029] Fig.11 This is a structural schematic diagram of a self-locking component in one embodiment of the present application;

[0030] Fig.12 An exploded view of a reel in one embodiment of the present application;

[0031] Fig.13 This is a schematic diagram of the appearance structure of an external connector in one embodiment of the present application;

[0032] Fig.14 A cross-sectional view of an external connector in one embodiment of the present application;

[0033] Fig.15 and 16 This is a schematic diagram of a self-locking hook and a self-locking block at different viewing angles in one embodiment of the present application;

[0034] Fig.17 This is a structural diagram of a self-locking block installed in a button in one embodiment of the present application;

[0035] Fig.18 This is a schematic diagram of an embodiment of the present application, when the external functional head is a high-pressure nozzle, which is installed on the external connector;

[0036] Fig.19 This is a schematic diagram of an external functional head installed on an external connector when the external functional head is a soap pot in one embodiment of the present application;

[0037] Fig. 20This is a schematic diagram of the cooperation between the plug-in body and the clamping elastic member on the external connector in one embodiment of the present application;

[0038] Fig.21 This is a cross-sectional view of the matching structure between the external functional head on the external connector and the external connector in one embodiment of the present application;

[0039] Fig. 22 This is a schematic structural diagram of a clamping elastic member in one embodiment of the present application. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0041] The present application provides a portable cleaning device with a self-locking joint function (hereinafter referred to as a cleaning device), which can be used in various life scenes and industrial scenes. The so-called portable cleaning device means that the cleaning device can be conveniently carried to different places for use, such as being carried outdoors for use as a cleaning tool.

[0042] Please refer to Figure 1-3 In some embodiments, the cleaning device 1 includes a shell (such as 11 , 12 , 13 , 14 ), a driving pump 20 , a control unit 30 , a pipeline recovery component 40 and a flushing pipeline 50 .

[0043] Please refer to Figure 2 The housing has a liquid storage chamber 101, a waterproof sealing chamber 102 and a pipeline storage chamber 103. The housing serves as a supporting structure for the entire device, and is usually composed of a plurality of sub-housings assembled together. These sub-housings can be made of the same or different materials according to their functions. Of course, on the basis of the manufacturing technology being able to achieve this, such as by using 3D printing technology, the housing can also be integrally formed.

[0044] The liquid in the liquid storage chamber 101 can be water or other liquids, such as cleaning liquid, etc. The liquid storage chamber 101 has a liquid inlet, and the user can add liquid into the liquid storage chamber 101 from the liquid inlet through other containers or water supply pipes, or directly use the cleaning device 1 as a container and fill it with water from a water source (such as river water or lake water), which is more convenient to use.

[0045] The waterproof sealed cavity 102 is sealed and separated from the liquid storage cavity 101 and the pipeline storage cavity 103, that is, after the entire cleaning device 1 is assembled, liquid cannot flow from the liquid storage cavity 101 and the pipeline storage cavity 103 into the waterproof sealed cavity 102, ensuring that the waterproof sealed cavity 102 is always in a sealed and isolated state from the outside. The control unit 30 and the driving pump 20 are arranged in the waterproof sealed cavity 102 to prevent the control unit 30 and the driving pump 20 from being soaked by liquid and damaged.

[0046] In this embodiment, since the waterproof sealed cavity 102 is sealed and separated from the liquid storage cavity 101 and the pipe storage cavity 103, protection is provided for electrical components such as the control unit 30 and the drive pump 20. Therefore, the entire cleaning device 1 can be directly thrown into a water source (such as river water or lake water) to fill with water, that is, the entire cleaning device 1 can be used as a bucket to facilitate the filling of water into the liquid storage cavity 101.

[0047] Please refer to Figure 1-3 In some embodiments, the cleaning device 1 may further include a cover 60, which covers the liquid inlet of the liquid storage chamber 101 to prevent the liquid from spilling out of the liquid storage chamber 101. In addition, in some embodiments, a handle 70 may be provided on the housing to facilitate the user to move the cleaning device 1. In some embodiments, the cleaning device 1 may further include rollers to enable the cleaning device 1 to have the ability to roll and move.

[0048] For further information, please refer to Figure 2 and 3 In some embodiments, the driving pump 20 is used as a driving component for driving the flow of liquid in the cleaning device 1, and various driving pumps 20 applied to liquid fluids, such as high-pressure water pumps, etc., can be used. The liquid storage chamber 101 has a water outlet 1011, and the driving pump 20 is sealed and connected to the water outlet 1011. The control unit 30 is the main control unit of the cleaning device 1, which can adopt a main control board or other existing electrical structures that can be used for control. The control unit 30 is electrically connected to the driving pump 20 to control the operation of the driving pump 20, such as controlling the opening and closing of the driving pump 20, or in some embodiments, the control unit 30 can also be used to adjust the power size of the driving pump 20, etc.

[0049] In addition, in some embodiments, other electronic components may be provided on the cleaning device 1, such as physical buttons, touch buttons, display screens, touch screens, communication units, etc., and these electronic components may be controlled by the control unit 30. The user may send instructions or perform human-computer interaction with the control unit 30 through physical buttons, touch buttons, touch screens, or external terminals (such as mobile phones, tablets, etc.) in a wired or wireless communication manner to control the cleaning device 1, such as controlling the operation of the driving pump 20.

[0050] In some embodiments, the driving pump 20 can be powered by an external power cord. Of course, in some embodiments, the cleaning device 1 can also have a power supply battery, which is arranged in the waterproof sealed cavity 102 to prevent liquid from damaging the power supply battery during use. The power supply battery can ensure that the cleaning device 1 can be used normally in places without an external power supply. Of course, in order to further protect the power supply battery and the control unit 30, please refer to Figure 3 In some embodiments, the power supply battery and the control unit 30 can be integrated into an integral module, and the power supply battery and the control unit 30 can be protected by a module housing.

[0051] For further information, please refer to Figure 2 and 3 In some embodiments, the pipeline recovery assembly 40 is arranged in the pipeline storage chamber 103, which is used to store the flushing pipeline 50. The flushing pipeline 50 is used for the user to guide the liquid discharged by the driving pump 20 to the outside of the device and clean the cleaning object. The flushing pipeline 50 includes a pipe body 51 and an external joint 52 for an external functional head, and the pipe body 51 is installed on the pipeline recovery assembly 40. One end of the pipe body 51 is directly or indirectly sealed and connected to the output end of the driving pump 20, and the other end of the pipe body 51 is sealed and connected to the external joint 52. The pipeline recovery assembly 40 is a structure that can automatically store and release the pipe body 51, for example, an automatic hose reel or a winding device in the prior art is adopted, or the pipeline recovery assembly 40 can also be a structure that allows the user to manually wind the pipe body 51 thereon, such as a hose reel shaft, so that the user can manually wind the pipe body 51 around the circumference of the hose reel shaft. Through the pipeline recovery component 40, when the flushing pipeline 50 is not in use, the tube body 51 can be stored in the pipeline storage cavity 103, thereby facilitating the carrying and storage of the equipment. At the same time, when it is needed, the flushing pipeline 50 can be pulled out from the pipeline storage cavity 103.

[0052] The external connector 52 has a liquid channel, which is connected to the tube body 51. The liquid in the tube body 51 can be discharged through the external connector 52, and then the external connector 52 is used to rinse the cleaning object. Of course, the external connector 52 can also be used to connect with one or more external functional heads, and these external functional heads can realize corresponding functions. The external functional head is, for example, but not limited to, a pressurizing head 81 (such as a pressurizing head 81 for pressurizing and spraying liquid) Fig.18 As shown), a cleaning liquid pot 82 containing cleaning liquid (as shown Fig.19 The soap pot shown in the figure) etc. are used to clean the cleaning object.

[0053] In the above embodiment, the cleaning device 1 does not need to be connected to a water pipe. In addition, the cleaning device 1 has a built-in flushing pipeline 50, which can be stored in the pipeline storage chamber 103 and can be pulled out from the pipeline storage chamber 103 for use. The entire cleaning device 1 is very convenient to carry and use. In addition, the external connector 52 can be directly used as a flushing head, and can also be connected to other external functional heads, etc., which can expand the function of the flushing pipeline 50.

[0054] Furthermore, the housing can be formed into a liquid storage cavity 101, a waterproof sealing cavity 102 and a pipeline receiving cavity 103 through various structures. In addition to these, in some embodiments, the housing can also have other cavities to achieve other corresponding functions.

[0055] Please refer to Figure 1 and 2 In some embodiments, the housing includes a side housing 11, a first separator 12, a second separator 13, and a bottom housing 14. The first separator 12 is disposed in the side housing 11, and together with the side housing 11, forms a liquid storage chamber 101. The second separator 13 is disposed in the side housing 11 and is located below the first separator 12, and together with the side housing 11 and the first separator 12, forms a waterproof sealed chamber 102. The bottom housing 14 is located at the bottom of the side housing 11, and together with the side housing 11 and the second separator 13, forms a pipeline storage chamber 103.

[0056] The side housing 11, the first separator 12, the second separator 13 and the bottom housing 14 are only divided in terms of position, and the side housing 11, the first separator 12, the second separator 13 and the bottom housing 14 are not limited to being independent parts. In some embodiments, the side housing 11, the first separator 12, the second separator 13 and the bottom housing 14 may all be integrally formed (such as 3D printing), or two or more of them may be integrally formed parts.

[0057] In addition, Figure 1 and 2 In the structure shown, the housing can be formed into a liquid storage chamber 101, a waterproof sealing chamber 102 and a pipeline storage chamber 103 through various structures. Figure 2In the structure shown, the liquid storage chamber 101, the waterproof sealing chamber 102 and the pipeline receiving chamber 103 are arranged in sequence from top to bottom. In other embodiments, the liquid storage chamber 101, the waterproof sealing chamber 102 and the pipeline receiving chamber 103 may also be arranged in other ways, for example, the waterproof sealing chamber 102 may also be arranged side by side with the liquid storage chamber 101, or the waterproof sealing chamber 102 may be located at the lower side or the upper side of the liquid storage chamber 101, or the liquid storage chamber 101 may also be arranged around the waterproof sealing chamber 102, etc.

[0058] For further information, please refer to Figure 1 and 2 In some embodiments, the side housing 11 includes a first side housing 111, a second side housing 112 and a connecting housing 113. The first side housing 111, the connecting housing 113 and the second side housing 112 are sealed and connected in sequence to form a side housing 11 that is sealed at the peripheral side.

[0059] Please refer to Figure 1 and 2 In some embodiments, the second side shell 112 protrudes toward the periphery of the shell relative to the first side shell 111 to form a step-like structure. In some embodiments, at least a portion of the first side shell 111 is a folding structure 111 that can be folded and opened in a vertical direction. Figure 1 and 2 In the embodiment shown, in at least one open state of the folding structure 111, for example, when the folding structure 111 is opened upward to the maximum size, the first side shell 111 and the second side shell 112 are separated from each other; Figure 4 In the illustrated embodiment, in a folded state of the folding structure 111, for example, when folded downward to the minimum size, the first side shell 111 is folded to engage with the second side shell 112, so that the first side shell 111 and the second side shell 112 form a closed peripheral wall. In the above embodiment, the peripheral side size of the portion where the second side shell 112 is located is larger than the peripheral side size of the portion where the first side shell 111 is located, so that when the folding structure 111 is in the open state, the center of gravity of the entire device is more stable and not easy to tip over. When the folding structure 111 is in the folded state, the first side shell 111 is engaged with the second side shell 112 to form a closed peripheral wall, and no raised step structure is formed on the peripheral wall, which makes it easier to store and place, and can also prevent the raised step structure from causing damage to users or others.

[0060] For further information, please refer to Figure 1 , 2and 4. In one embodiment, the top of the first side shell 111 has a downwardly disposed inverted body 1114, and in at least one opened state of the folding structure 111, the inverted body 1114 and the second side shell 112 are separated from each other; in a folded state of the folding structure 111, the inverted body 1114 is engaged with the second side shell 112 so that the inverted body 1114 can form a closed outer peripheral wall with the second side shell 112.

[0061] Of course, in other embodiments, the side housing 11 may also be designed to be Figure 1 , 2 Shapes other than those shown in 4 may be designed as a straight cylinder or a tapered cylinder with a larger top and a smaller bottom.

[0062] For further information, please refer to Figure 2 In some embodiments, the folding structure 111 includes a plurality of hard units 1112 and soft units 1113, wherein the hard units 1112 and soft units 1113 can be cylindrical and are sequentially staggered and connected in a vertical direction. The soft units 1113 have certain elasticity or flexibility due to material properties, so that the plurality of hard units 1112 can be folded together. Figure 4 As shown. The hard unit 1112 can be made of hard plastic or other hard materials, and the soft unit 1113 can be made of rubber or other soft materials. The structure in which the hard unit 1112 and the soft unit 1113 are alternately connected can ensure that the folding structure 111 has a certain stability in the open state to avoid deformation of the first side shell 111 in the open state, and at the same time ensure that the folding structure 111 is easily folded. Of course, in other embodiments, the folding structure 111 can also be implemented with other structures, and is not limited to the structure of the hard unit 1112 and the soft unit 1113.

[0063] For further information, please refer to Figure 2 In some embodiments, the first separator 12 is disposed in the first side shell 111 and forms a liquid storage chamber 101 with the first side shell 111. Preferably, the first separator 12 is connected to the area outside the folding structure 111 on the first side shell 111 to prevent the folding structure 111 from affecting the first separator 12.

[0064] The second separator 13 is disposed in the first side housing 111 and below the first separator 12, and forms a waterproof sealed cavity 102 with the first side housing 111 and the first separator 12. The bottom housing 14 is located at the bottom of the second side housing 112, and forms a pipeline storage cavity 103 with the second side housing 112 and the second separator 13.

[0065] Of course, in other embodiments, the first side housing 111 may not have the folding structure 111 , that is, the first side housing 111 or the side housing 11 cannot be folded and stored.

[0066] For further information, please refer to Figure 1 and 4 In some embodiments, the outer wall of the shell has a concave external connector accommodating cavity 104, and the external connector 52 can be detachably received in the external connector accommodating cavity 104.

[0067] The external connector 52 can be received in the external connector accommodating cavity 104 by, but not limited to, tight fit fixation, magnetic fixation, snap-fit ​​fixation, and repeatable adhesive fixation (such as Velcro fixation). Figure 4 In the illustrated embodiment, the size of the external connector accommodating cavity 104 matches the external connector 52, so that the external connector 52 can be inserted into the external connector accommodating cavity 104 in a tight fit manner to complete the storage of the external connector 52, making it convenient to carry and store, and also making it convenient for the user to take out the external connector 52.

[0068] Please refer to Figure 1 and 4 In some embodiments, the external connector accommodating chamber 104 is disposed on the second side shell 112, which is located outside the pipeline receiving chamber 103, and the external connector 52 and the tube body 51 are located at the same position, which is convenient for user operation.

[0069] For further information, please refer to Figure 2 and 3 In some embodiments, the outlet 1011 of the liquid storage chamber 101 is disposed on the bottom wall or other positions of the liquid storage chamber 101. Of course, when it is disposed on the bottom wall, it is more conducive for the liquid in the liquid storage chamber 101 to flow from the outlet 1011 to the driving pump 20. The liquid inlet end of the driving pump 20 is sealed and connected to the outlet 1011. Figure 2 In the illustrated embodiment, the liquid inlet end of the driving pump 20 is connected to the water outlet 1011 through the first adapter 91. One end of the first adapter 91 is sealed with the water outlet 1011, and the other end is sealed with the liquid inlet end of the driving pump 20. The mouth wall of the water outlet 1011 can extend from top to bottom toward the waterproof sealing cavity 102, and the first adapter 91 is inserted into the mouth wall of the water outlet 1011. The first adapter 91 and the mouth wall of the water outlet 1011 are sealed by a sealing member, such as a sealing ring or a sealant. In order to prevent larger debris from entering the driving pump 20, in some embodiments, a filter screen 92 or a filter hole can be provided in the water outlet 1011 to filter larger debris.

[0070] More specifically, please refer to Figure 2 and 3In some embodiments, the input end and the output end of the driving pump 20 are both arranged horizontally. The first adapter 91 forms a 90° angle, the input end of the first adapter 91 is arranged in the vertical direction, and is plugged with the water outlet 1011 of the liquid storage chamber 101, and the output end of the first adapter 91 is arranged in the horizontal direction, and is plugged with the input end of the driving pump 20 in a sealed manner.

[0071] For further information, please refer to Figure 2 In some embodiments, the pipeline recovery assembly 40 is disposed in the waterproof sealed cavity 102. The pipeline recovery assembly 40 has a liquid inlet channel 401, and the liquid inlet channel 401 is sealed and connected to the output end of the driving pump 20. Specifically, the liquid inlet channel 401 can be directly connected to the output end of the driving pump 20, or can be connected to the output end of the driving pump 20 through a switching structure.

[0072] Please refer to Figure 2 and 3 In some embodiments, the adapter structure includes a second adapter 93 and a third adapter 94, the second adapter 93 is sealed and connected to the output end of the driving pump 20, the third adapter 94 is sealed and connected to the second adapter 93, and the liquid inlet channel 401 is sealed and connected to the third adapter 94.

[0073] More specifically, please refer to Figure 2 and 3 In some embodiments, the input end and the output end of the driving pump 20 are both arranged horizontally. The second adapter 93 forms a 90° angle, and the input end of the second adapter 93 is arranged in the horizontal direction and plugged with the output end of the driving pump 20. The output end of the second adapter 93 is arranged in the vertical direction. Figure 5 The second separator 13 has a first mounting through hole 131, the input end of the third adapter 94 is sealed and plugged with the output end of the second adapter 93, and the third adapter 94 passes through the first mounting through hole 131 and extends into the pipeline receiving cavity 103, and is sealed and connected with the input end of the liquid inlet channel 401. In order to form a sealing structure at the first mounting through hole 131 to prevent liquid from entering the waterproof sealing cavity 102 from the pipeline receiving cavity 103, a sealed connection is formed between the third adapter 94 or the second adapter 93 and the first mounting through hole 131.

[0074] Please refer to Figure 2 and 5In some embodiments, an annular sealing groove 132 opening upward is provided on the second separator 13 around the first mounting through hole 131, and the second adapter 93 has a fin 931 provided along its circumference, the fin 931 is inserted downward into the annular sealing groove 132, and is sealed by providing a sealing member, such as a sealing ring. Of course, the annular sealing groove 132 can also be provided on the second adapter 93, and the fin 931 can be provided on the second separator 13. In addition, the second adapter 93 can also be sealed with the second separator 13 using other sealing structures.

[0075] In other embodiments, the sealing structure may also be disposed between the third adapter 94 and the second separator 13. For example, the above-mentioned fin 931 or annular sealing groove 132 is disposed on the third adapter 94, and a matching structure corresponding to the fin 931 or annular sealing groove 132 is disposed on the second separator 13.

[0076] The third adapter 94 is fixedly connected to the second adapter 93, and the internal channels of the two are sealed and communicated, for example, a sealing cavity or a sealant is provided in the third adapter 94 and the second adapter 93. In addition, in some embodiments, the third adapter 94 can also be rotatably arranged relative to the second adapter 93, so that the third adapter 94 can rotate with the pipeline recovery assembly 40.

[0077] For further information, please refer to Figure 2 and 3 In some embodiments, the pipeline recovery assembly 40 is an automatic tube reel assembly. The automatic tube reel assembly includes a reel 41 and a reeling elastic member 42. The reel 41 is rotatably disposed in the pipeline storage chamber 103, and the tube body 51 can be wound on the reel 41 in a pulled-out manner. The reeling elastic member 42 is located on the circumference of the reel 41 and is connected to the reel 41. When the tube body 51 is pulled out, the reel 41 drives the reeling elastic member 42 to deform, and the reeling elastic member 42 is used to provide a restoring force to automatically reel the tube body 51 onto the reel 41.

[0078] In some embodiments, the winding elastic member 42 is a constant force coil spring, which can ensure that the elastic restoring force formed by the winding elastic member 42 remains basically consistent when the user pulls out the tube body 51, thereby avoiding the increase of resistance when the tube body 51 is pulled out for a long length. Of course, in other embodiments, the winding elastic member 42 can also be a non-constant force ordinary coil spring or other forms of winding elastic member 42.

[0079] Please refer to Figure 6 and 7In some embodiments, the top wall of the reel 41 has a protruding connection portion 413, which is fixedly connected to the free end of the constant force coil spring. When the reel 41 is rotated by an external force, the constant force coil spring is deformed. When the external force disappears, the constant force coil spring can pull the reel 41 to reset.

[0080] Please refer to Figure 2 In some embodiments, the liquid inlet channel 401 is disposed on the reel 41 , and the third adapter 94 is sealedly connected to the reel 41 and is sealedly connected to the liquid inlet channel 401 .

[0081] Please refer to Figure 2 and 3 In some embodiments, the liquid inlet channel 401 includes a vertical section 402 and a horizontal section 403. The vertical section 402 is sealed and plugged with the output end of the third adapter 94, such as the output end of the third adapter 94 is inserted into the vertical section 402. The output end of the third adapter 94 and the vertical section 402 can be rotatably and sealedly docked, so that the reel 41 can rotate relative to the third adapter 94. Of course, when the third adapter 94 is rotatably connected to the second adapter 93, the third adapter 94 can also be fixedly connected to the reel 41. The horizontal section 403 is used to seal and dock with the tube body 51 to achieve a sealed connection between the liquid inlet channel 401 and the tube body 51.

[0082] In some embodiments, the liquid inlet channel 401 is formed in a 90° shape in the reel 41 to form a vertical section 402 and a horizontal section 403. Of course, in other embodiments, the liquid inlet channel 401 may also be in other shapes, such as I-shaped, C-shaped, or S-shaped.

[0083] For further information, please refer to Figure 2 , 6 and 7, in some embodiments, in order to enable the reel 41 to be rotatably mounted on the shell, the automatic tube reel assembly further includes a reel bracket 43. The reel bracket 43 is disposed in the pipeline storage cavity 103 and is fixedly mounted on the shell, for example, it can be fixed on the second partition 13 or the connecting shell 113. The reel 41 is rotatably mounted on the reel bracket 43, and the winding elastic member 42 is fixed on the reel bracket 43. Compared with directly rotatably mounting the reel 41 on the shell, the structure of the shell can be simplified and the manufacturing difficulty can be reduced by switching the reel bracket 43. Moreover, through the reel bracket 43, the automatic tube reel assembly can be formed into a modular structure, and the reel 41, the winding elastic member 42 and the reel bracket 43 can be assembled first, and then the automatic tube reel assembly can be fixed to the shell as a whole, for example, in Figure 2 In the embodiment, the automatic tube reel assembly is fixed upwardly to the upper wall of the tube storage chamber 103 (which may be the second partition 13 or the bottom wall of the connecting shell 113) through the reel bracket 43.

[0084] For further information, please refer to Figure 6 In some embodiments, the reel support 43 has a top 431 and a side 432 extending downward from the top 431. The reel 41 is rotatably mounted on the top 431 of the reel support 43, and the winding elastic member 42 is fixed to the bottom wall of the top 431 of the reel support 43. Figure 2 and 6 The reel 41 has an annular tube receiving groove 414, and the tube receiving groove 414 has an opening on its circumference. The reel support 43 is inverted on the reel 41, so that the reel 41 is at least partially accommodated in the area formed by the top 431 and the side 432 of the reel support 43. Figure 2 As shown, the side portion 432 of the reel support 43 is located on the side of the opening to prevent the tube 51 from falling from the opening.

[0085] Please refer to Figure 6 and 7 In some embodiments, the reel support 43 is an n-shaped structure, which is inverted above the reel 41. The side portion 432 of the reel support 43 forms an arc-shaped space for the reel 41 to rotate, so that the reel 41 can rotate freely on the reel support 43. In other embodiments, the reel support 43 can also be designed as an inverted cup-shaped, claw-shaped structure or other structures that can play a similar function.

[0086] Please refer to Figure 2 and 7 In some embodiments, the reel 41 includes an upper disc body 415, a lower disc body 416, and a connecting body 417 located between the upper disc body 415 and the lower disc body 416. The upper disc body 415 and the lower disc body 416 are arranged opposite to each other, and the connecting body 417 is located in the middle of the upper disc body 415 and the lower disc body 416. The upper disc body 415, the lower disc body 416, and the connecting body 417 form an annular tube receiving groove 414. The liquid inlet channel 401 extends downward from the upper end of the connecting body 417 to the side of the connecting body 417, and the tube 51 is connected to the liquid inlet channel 401 from the side of the connecting body 417, and then wound around the side of the connecting body 417.

[0087] For further information, please refer to Figure 2 as well as Figure 6 , 7 In some embodiments, the reel bracket 43 has a second mounting through hole 433, and the third adapter 94 is fixedly mounted in the second mounting through hole 433. The third adapter 94 can form an integral module with the automatic tube reel assembly, that is, the automatic tube reel assembly includes the third adapter 94. Of course, in some embodiments, the automatic tube reel assembly may not include the third adapter 94.

[0088] Specifically, the reference Figure 6 , 7In some embodiments, the second mounting through hole 433 has a first upper limit portion 434 and a first lower limit portion 435, and the third adapter 94 has a first upper limit matching portion 942 and a first lower limit matching portion 943. The first upper limit matching portion 942 abuts against the first upper limit portion 434 upward to limit the third adapter 94 in the upward direction. The first lower limit matching portion 943 abuts against the first lower limit portion 435 downward to limit the third adapter 94 in the downward direction, thereby completing the vertical limit of the third adapter 94.

[0089] For further information, please refer to Figure 6 , 7 In some embodiments, in order to simplify the structure, the first upper limit portion 434 may further include a rotation limit portion 436, and the first upper limit matching portion 942 is provided with a rotation limit matching portion 942. When the first upper limit matching portion 942 abuts against the first upper limit portion 434 upward, the rotation limit matching portion 942 is engaged with the rotation limit portion 436, thereby realizing the rotation limit of the third adapter, so that it cannot rotate relative to the reel bracket 43.

[0090] More specifically, please refer to Figure 6 , 7 In some embodiments, the rotation limiting portion 436 is a protruding bump, and the rotation limiting matching portion 942 is a groove. The rotation limiting portion 436 protrudes downward on the first upper limit portion 434 to be inserted downward into the rotation limiting matching portion 942 of the first upper limit matching portion 942.

[0091] Please refer to Figure 6 , 7 In some embodiments, the first upper limit portion 434 and the first lower limit portion 435 are distributed at different heights in the second mounting through hole 433. The first upper limit portion 434 and the first lower limit portion 435 can be multiple, respectively, and they are arranged along the circumference of the second mounting through hole 433. The first upper limit matching portion 942 can also be multiple, and form a convex structure to be arranged opposite to the first upper limit portion 434. The first lower limit matching portion 943 is a convex ridge arranged around the central axis of the third adapter 94 so that it can abut against the first lower limit portion 435. Of course, the first upper limit matching portion 942 can also be designed as an annular convex ridge, and the first lower limit matching portion 943 can also be designed as a convex structure.

[0092] The first lower limit portion 435 may have a matching surface 4351 inclined downward, and the first lower limit matching portion 943 may have an inclined surface 9431 (see Figure 2), when assembling the third adapter 94, the third adapter 94 is inserted into the second mounting through hole 433 from top to bottom, and the inclined surface 9431 of the first lower limit fitting portion 943 is in contact with and pressed against the fitting surface 4351 of the first lower limit portion 435, and the first lower limit portion 435 and the first lower limit fitting portion 943 are deformed, so that the first upper limit fitting portion 942 can be inserted from top to bottom to the bottom of the first upper limit fitting portion 434.

[0093] In addition to the above-mentioned embodiments, the third adapter 94 can also be installed on the reel bracket 43 by other fixing methods, such as other forms of clamping, welding, bonding, screwing, etc.

[0094] For further information, please refer to Figure 2 as well as Figure 6 , 7 In some embodiments, in order to realize the rotatable connection between the reel 41 and the reel support 43, a sinking platform 437 is provided in the second mounting through hole 433, and a through hole is reserved in the middle of the sinking platform 437 for the third adapter 94 to pass through. The reel 41 has a docking joint 418, and the liquid inlet channel 401 is arranged through the docking joint 418, for example, at least a part of the vertical section 402 of the liquid inlet channel 401 is arranged through the docking joint 418. The docking joint 418 penetrates the through hole of the sinking platform 437 from bottom to top, and a clamping platform 4181 is provided on the peripheral side of the docking joint 418, and the clamping platform 4181 can be hung on the top wall of the sinking platform 437. The docking joint 418 is not limited in the rotation direction, so that the reel 41 can rotate relative to the reel support 43.

[0095] Please refer to Figure 2 as well as Figure 6 , 7 In some embodiments, the third adapter 94 is directly inserted into the docking joint 418 to form a sealed connection. The first lower limit portion 435 for limiting the third adapter 94 downward can also be set on the sinking platform 437. This structure not only realizes the fixed fit between the reel bracket 43 and the third adapter 94, but also completes the rotational connection between the reel 41 and the reel bracket 43, and also completes the sealed docking between the docking joint 418 of the reel 41 and the third adapter 94, completing the docking of multiple components with a simple and compact structure, thereby improving the compactness of the structure. Moreover, the mating parts of the structure are mainly concentrated in the second mounting through hole 433 of the reel bracket 43. The hole wall of the second mounting through hole 433 can protect each mating part to avoid affecting the mating effect due to the impact of other components, thereby improving the reliability of the mating.

[0096] Of course, in other embodiments, the reel bracket 43 and the reel 41, and the reel 41 and the third adapter 94 may also be connected using other structures, and are not limited to the structures described in the above embodiments.

[0097] Furthermore, usually in the process of pulling out the flushing pipeline 50, the user will expect that the flushing pipeline 50 can be locked at a set position, so that the user does not need to keep pulling the flushing pipeline 50. Therefore, in some embodiments, the automatic hose reel assembly also has a reel self-locking assembly, which is used to lock the flushing pipeline 50 at a set position so that the flushing pipeline 50 can be kept at a certain pulled-out length. Of course, the reel self-locking assembly can also be unlocked, so that the automatic hose reel assembly can automatically recycle the flushing pipeline 50. The reel self-locking assembly can adopt the self-locking structure of a common hose reel or a wire reel, or the self-locking structure of a measuring tape, or other forms of self-locking structures.

[0098] In some embodiments, the top wall of the reel 41 is provided with a self-locking guide groove structure, and the reel bracket 43 has a top 431 arranged toward the top wall of the reel 41. The reel bracket 43 is provided with a reel self-locking assembly, which cooperates with the self-locking guide groove structure to lock the tube body 51 at a set pull-out position during the process of pulling out the tube body 51. The self-locking guide groove structure and the reel self-locking assembly can adopt any guide groove type self-locking structure, such as an existing labyrinth self-locking device.

[0099] Please refer to Figure 6 and 7 In some embodiments, a reel self-locking assembly 441 and a self-locking guide groove structure 419 are provided. The reel self-locking assembly 441 is rotatably mounted on the reel bracket 43 or other supporting components. The reel self-locking assembly 441 has a locking rod 4411, which extends into the self-locking guide groove structure 419 of the reel 41.

[0100] Please refer to Figure 8 and 9 In some embodiments, the self-locking guide groove structure 419 includes a first annular guide groove 4191 arranged around the rotation axis of the reel 41 and a second annular guide groove 4192 located in the inner circle of the first annular guide groove 4191, and the second annular guide groove 4192 is arranged cocentrically with the first annular guide groove 4191.

[0101] When the flushing pipeline 50 is pulled out, the rotation direction of the reel 41 is defined as the first direction; when the flushing pipeline 50 is recovered, the rotation direction of the reel 41 is defined as the second direction. The first direction is opposite to the second direction. The first direction can be the clockwise direction, in which case the second direction is the counterclockwise direction. The first direction can also be the counterclockwise direction, in which case the second direction is the clockwise direction.

[0102] The locking rod 4411 is configured to be able to slide in the self-locking guide groove structure 419, wherein when the reel 41 rotates, the reel 41 moves relative to the locking rod 4411, which is equivalent to the locking rod 4411 moving relative to the reel 41. In order to better describe the movement relationship between the locking rod 4411 and the reel 41, the description is made from the perspective of the locking rod 4411. When the flushing pipeline 50 is pulled out, the reel 41 rotates in the first direction, that is, the locking rod 4411 moves in the second direction relative to the reel 41, and the locking rod 4411 mainly moves in the first annular guide groove 4191. When the flushing pipeline 50 is recovered, the reel 41 rotates in the second direction, and the locking rod 4411 moves in the first direction relative to the reel 41, and the locking rod 4411 mainly moves in the second annular guide groove 4192.

[0103] Please refer to Figure 8 and 9 When the flushing pipeline 50 is completely wound on the reel 41, the locking rod 4411 is in the second annular guide groove 4192. At this time, when the flushing pipeline 50 is pulled outward, the locking rod 4411 needs to move from the second annular guide groove 4192 to the first annular guide groove 4191 relative to the reel 41. Therefore, the self-locking guide groove structure 419 also includes a first connecting guide groove 4193 arranged between the second annular guide groove 4192 and the first annular guide groove 4191. When the flushing pipeline 50 is pulled outward, the locking rod 4411 can move from the first connecting guide groove 4193 to the first annular guide groove 4191 relative to the reel 41. In order to prevent the locking rod 4411 from moving from the first annular guide groove 4191 back to the first connecting guide groove 4193 relative to the reel 41, the first connecting guide groove 4193 is provided with a step-type limiting structure 4194a, which only allows the locking rod 4411 to move from the first connecting guide groove 4193 to the first annular guide groove 4191 relative to the reel 41.

[0104] The structure of the first annular guide groove 4191 is configured to allow the locking rod 4411 to freely move in the first annular guide groove 4191 relative to the reel 41 along the second direction, that is, when the locking rod 4411 is located in the first annular guide groove 4191, the reel 41 can continue to rotate in the first direction to release a longer flushing pipeline 50. At the same time, the structure of the first annular guide groove 4191 is also configured not to allow the locking rod 4411 to freely move in the first annular guide groove 4191 relative to the reel 41 along the first direction, that is, the first annular guide groove 4191 is provided with one or more limiting structures that prevent the locking rod 4411 from moving in the first annular guide groove 4191 relative to the reel 41 along the first direction. For example, in Figure 8 and 9In the illustrated embodiment, the bottom wall of the first annular guide groove 4191 is provided with a step-type limiting structure 4194b, which prevents the locking rod 4411 from moving in the first annular guide groove 4191 relative to the reel 41 along the first direction, but allows the locking rod 4411 to move in the first annular guide groove 4191 relative to the reel 41 along the second direction, that is, when the flushing pipeline 50 is pulled out, the locking rod 4411 does not affect the rotation of the reel 41 along the first direction, but when the flushing pipeline 50 is stopped, the reel 41 is reset under the action of the winding elastic member 42, and the reel 41 rotates in the second direction at this time. When the locking rod 4411 contacts the step-type limiting structure, the reel 41 is prevented from continuing to rotate in the second direction. At this time, in order to better lock the reel 41, the self-locking guide groove structure 419 further includes at least one locking groove 4195, which is located on the inner side (the inner circle side) of the first annular guide groove 4191. The first annular guide groove 4191 is connected to the locking groove 4195, so that the locking rod 4411 can move from the first annular guide groove 4191 to the locking groove 4195 relative to the reel 41. The position of the stepped limiting structure 4194b corresponds to the locking groove 4195. Under the action of the winding elastic member 42, when the locking rod 4411 moves to the stepped limiting structure 4194b in the first direction relative to the reel 41, it moves along the guide surface of the stepped limiting structure 4194b to the locking groove 4195. The structure of the locking groove 4195 is configured to prevent the locking rod 4411 from moving in the first direction relative to the reel 41, but allows the locking rod 4411 to move in the second direction relative to the reel 41. That is, when the locking rod 4411 is located in the locking groove 4195, the reel 41 is locked, and the restoring force of the winding elastic member 42 cannot pull the flushing pipeline 50 back, unless the user pulls the flushing pipeline 50 again to disengage the locking rod 4411 from the locking groove 4195.

[0105] After the locking rod 4411 locks the reel 41, in order to allow the user to continue to pull out the flushing pipeline 50, the locking groove 4195 is also configured to be connected to the second annular guide groove 4192. When the user pulls the reel 41 to rotate again, the locking rod 4411 moves in the second direction relative to the reel 41, and moves from the locking groove 4195 to the second annular guide groove 4192, and then moves from the first connecting guide groove 4193 to the first annular guide groove 4191, repeating the aforementioned changes.

[0106] When the lock rod 4411 locks the reel 41 and the flushing pipeline 50 needs to be recovered, the user can pull the reel 41 to rotate, so that the lock rod 4411 moves relative to the reel 41 in the second direction and moves from the locking groove 4195 to the second annular guide groove 4192. Then, the user releases the flushing pipeline 50, and the reel 41 rotates in the second direction under the action of the winding elastic member 42, and the lock rod 4411 moves relative to the reel 41 in the first direction. In order to allow the reel 41 to pull the flushing pipeline 50 back more freely, the structure of the second annular guide groove 4192 is configured to allow the lock rod 4411 to move freely relative to the reel 41 in the second annular guide groove 4192 in the first direction, that is, when the lock rod 4411 is located in the second annular guide groove 4192, the reel 41 can continue to rotate in the second direction to recover the flushing pipeline 50.

[0107] Please refer to Figure 8 and 9 In some embodiments, when the locking rod 4411 moves from the second annular guide groove 4192 to the first connecting guide groove 4193 relative to the reel 41, the bottom wall of the second annular guide groove 4192 is provided with a step-type limiting structure 4194c, so that when the locking rod 4411 moves along the second direction in the second annular guide groove 4192 to the first connecting guide groove 4193, it can only enter the first connecting guide groove 4193 and will not continue to move along the second direction in the second annular guide groove 4192.

[0108] Please refer to Figure 8 and 9 In some embodiments, when the locking rod 4411 is self-locked in the locking groove 4195, when the user pulls the flushing pipeline 50 again, in order to prevent the locking rod 4411 from returning to the first annular guide groove 4191 from the locking groove 4195, a step-type limiting structure 4194d is provided at the connection between the locking groove 4195 and the first annular guide groove 4191 to limit the locking rod 4411 from returning to the first annular guide groove 4191 from the locking groove 4195. When the locking rod 4411 enters the second annular guide groove 4192 from the locking groove 4195, in order to prevent the locking rod 4411 from returning to the locking groove 4195 from the second annular guide groove 4192, a step-type limiting structure 4194e is provided at the connection between the locking groove 4195 and the second annular guide groove 4192 to limit the locking rod 4411 from returning to the locking groove 4195 from the second annular guide groove 4192.

[0109] Furthermore, in some embodiments, each locking groove 4195 can provide a pipeline locking point, and the self-locking guide groove structure 419 can have one or more locking grooves 4195 to achieve one or two pipeline locking points. Figure 8 and 9 In the illustrated embodiment, the two locking grooves 4195 are spaced approximately 180° apart in the circumferential direction to achieve the purpose of setting the flushing pipeline 50 at different lengths.

[0110] Of course, in other embodiments, the self-locking guide groove structure 419 may also adopt other structures cooperating with the locking rod 4411 to achieve self-locking and unlocking structures during the process of pulling out and retracting the pipeline, and is not limited to the structure shown in the above embodiment.

[0111] Please refer to Fig.10 and 11 In some embodiments, the reel self-locking assembly 441 further includes a locking rod connecting arm 4412, which is rotatably mounted on the reel bracket 43 or other components (such as the second separator 13). The locking rod 4411 is mounted on the locking rod connecting arm 4412, and when the locking rod 4411 moves in the self-locking guide groove structure 419, it can adaptively rotate around the reel bracket 43 or other components to adjust its position.

[0112] In some embodiments, at least one of the locking rod connecting arm 4412 and the locking rod 4411 is an elastic structure, so that the locking rod 4411 can adaptively adjust its position in the vertical direction when sliding relative to the self-locking guide groove structure 419. The elastic structure can be that at least one of the locking rod connecting arm 4412 and the locking rod 4411 is made of elastic material, or at least one of the locking rod connecting arm 4412 and the locking rod 4411 is supported by an elastic member (such as a spring) to form an elastic floating structure.

[0113] Please refer to Fig.10 and 11 In some embodiments, the locking rod connecting arm 4412 is made of elastic material and has elasticity itself. When the locking rod 4411 moves in the self-locking guide groove structure 419, the locking rod connecting arm 4412 can be deformed according to the position change of the locking rod 4411, and adaptively adjust the position of the locking rod 4411 relative to the self-locking guide groove structure 419.

[0114] Please refer to Fig.10 and 11 In some embodiments, the locking rod connecting arm 4412 and the locking rod 4411 are located above the self-locking guide groove structure 419, and the elastic force generated by them drives the locking rod 4411 to maintain a tendency to abut against the self-locking guide groove structure 419 downward, so as to ensure that the locking rod 4411 fits tightly with the self-locking guide groove structure 419.

[0115] Please refer to Figure 7 and 10 In some embodiments, the top 431 of the reel support 43 has a movable groove 438 arranged radially along the self-locking guide groove structure 419, and the locking rod 4411 is arranged in the movable groove 438 so that the locking rod 4411 can adaptively adjust its position radially during the cooperation with the self-locking guide groove structure 419.

[0116] For further information, please refer to Figure 7 , 10 In some embodiments, the locking rod connecting arm 4412 is located on the upper side of the top 431 of the reel support 43 and is rotatably disposed on the top 431 of the reel support 43. The locking rod 4411 is fixedly connected to the locking rod connecting arm 4412, and the locking rod 4411 passes through the top 431 of the reel support 43 and is inserted into the self-locking guide groove structure 419. When the locking rod 4411 moves relative to the self-locking guide groove structure 419, there is an up and down change in the vertical direction, so a certain vertical space needs to be reserved for the locking rod 4411. In this embodiment, the locking rod 4411 is arranged to pass through the reel bracket 43, and a vertical space is reserved above the reel bracket 43 for the locking rod 4411 to move up and down, and there is no need to reserve the vertical space between the reel bracket 43 and the reel 41, so the reel bracket 43 can be as close to the reel 41 as possible, which plays a role in protecting the self-locking guide groove structure 419 and preventing foreign objects from falling into the self-locking guide groove structure 419 and affecting the movement of the locking rod 4411 in the self-locking guide groove structure 419. Of course, in other embodiments, the reel self-locking component 441 can also be integrally arranged on the bottom wall of the top 431 of the reel bracket 43, and is not arranged through the top 431.

[0117] When the locking rod 4411 is arranged to penetrate the reel bracket 43, in order to reduce the overall thickness of the reel bracket 43 and the reel self-locking assembly 441, in some embodiments, please refer to Fig.10 The top wall of the top 431 of the reel support 43 has a recessed area 439 , and the locking rod connecting arm 4412 is located in the recessed area 439 .

[0118] For further information, please refer to Fig.10 and 11 In some embodiments, the reel self-locking assembly 441 further includes a support arm 4413, which is arranged opposite to the locking rod connecting arm 4412. The support arm 4413 is located on the inner side of the reel bracket 43, and is clamped on the reel bracket 43 together with the locking rod connecting arm 4412. The support arm 4413 and the locking rod connecting arm 4412 are connected by a rotating shaft 4414, and are integrally rotatably connected to the reel bracket 43 through the rotating shaft 4414. The locking rod 4411 extends from the locking rod connecting arm 4412 to the support arm 4413, and a locking rod through hole is provided on the support arm 4413 for the locking rod 4411 to pass through. The size of the locking rod through hole is larger than the locking rod 4411, so as to realize the up and down movement of the locking rod 4411 in the locking rod through hole (the up and down movement is closer to the up and down swinging centered on one end of the locking rod connecting arm 4412).

[0119] For some examples, please refer to Fig.10 and 11A separation sleeve 4415 is provided between the support arm 4413 and the locking rod connecting arm 4412, and the separation sleeve 4415 separates the support arm 4413 and the locking rod connecting arm 4412, and the locking rod 4411 is arranged through the separation sleeve 4415. The separation sleeve 4415 is used to keep the support arm 4413 and the locking rod connecting arm 4412 at a set minimum distance, so as to achieve appropriate contact between the locking rod 4411 and the bottom wall of each groove body in the self-locking guide groove structure 419, especially when the locking rod connecting arm 4412 is an elastic member, to avoid excessive elastic force applied by the locking rod connecting arm 4412 to the locking rod 4411, so as to cause the locking rod 4411 to contact the self-locking guide groove structure 419 too tightly and fail to move relative to each other smoothly.

[0120] For further information, please refer to Fig.10 and 12 In some embodiments, in order to reduce the manufacturing difficulty and simplify the manufacturing process, the reel 41 includes a reel body 411 and a core 412. The reel body 411 includes an upper disc body 415, a lower disc body 416, and a connecting body 417 located between the upper disc body 415 and the lower disc body 416. The reel body 411 is an I-shaped reel, that is, in a vertical cross-sectional view through the rotation axis of the reel body 411, the reel body 411 is an I-shaped structure. The core 412 is arranged on the connecting body 417 in the middle of the reel body 411, and the self-locking guide groove structure 419 is processed and arranged on the core 412 to facilitate processing. The processed core 412 is then fixedly mounted on the reel body 411.

[0121] In addition, in some embodiments, the liquid inlet channel 401 can also be processed and formed on the core 412. Specifically, in some embodiments, the middle area of ​​the core 412 is provided with a docking joint 418. The docking joint 418 is located in the inner circle of the second annular guide groove 4192 in the self-locking guide groove structure 419. The output end of the liquid inlet channel 401 is a plug connector, which is also located on the core 412. The plug connector extends in the horizontal direction to dock the pipeline. When the core 412 is assembled to the reel body 411, the tube body 51 is connected to the plug connector and is wound on the connector 417.

[0122] For further information, please refer to Fig.12 In some embodiments, a tube pressing member 45 is provided on the reel body 411 or the core 412. The tube pressing member 45 is fixed on the reel body 411 or the core 412 and presses the end of the tube body 51 in contact with the plug connector to prevent the tube body 51 from falling off the plug connector.

[0123] Specifically, please refer to Fig.12 In some embodiments, the tube pressing member 45 is fixed to the bottom wall of the reel body 411 , is locked by screws, and presses the tube body 51 from top to bottom.

[0124] Please refer to Fig.10 and 12 In some embodiments, the connecting body 417 of the reel body 411 is a cylindrical structure, which can be wrapped around the core 412 to protect the core 412 and separate the core 412 from the pipeline. The pipe pressing member 45 can also be arranged in the cylindrical structure of the connecting body 417 without being exposed, so that the overall structure of the reel 41 is more compact.

[0125] Furthermore, the external connector 52 of the present application can be used as a flushing connector to flush the cleaning object, and can also be connected to other external functional connectors.

[0126] Please refer to Fig.13 and 14 In some embodiments, the external joint 52 includes a joint housing 521, a liquid outlet channel assembly 522, a valve assembly 523, and a control assembly 524. The joint housing 521 forms a mounting cavity, the liquid outlet channel assembly 522 is mounted on the joint housing 521, and at least a portion of the liquid outlet channel assembly 522 is located in the mounting cavity. The liquid outlet channel assembly 522 includes a liquid outlet cylinder 5221, and the liquid outlet cylinder 5221 has a liquid channel 5222. One end of the liquid outlet cylinder 5221 is sealed and communicated with the tube body 51, and the other end is a liquid outlet.

[0127] The valve assembly 523 includes a valve core 5231, which is arranged in the liquid channel 5222 of the liquid outlet cylinder 5221. A sealing port 5223 is arranged in the liquid channel 5222, and the valve core 5231 is used to block and open the sealing port 5223, thereby closing and opening the external connector 52. The control assembly is used to drive the valve core 5231 to move, so as to open and / or close the sealing port 5223.

[0128] Please refer to Fig.14 In some embodiments, the valve core assembly further includes a sealing elastic member 5234, which acts on the valve core 5231 directly or indirectly to provide the valve core 5231 with elastic force to drive the valve core 5231 to keep sealing the sealing port 5223. The sealing elastic member 5234 may be a spring or other structure. Fig.14 In the illustrated embodiment, the sealing elastic member 5234 is disposed in the liquid channel 5222, abuts against the valve core 5231, and pushes the valve core 5231 to move toward the sealing opening 5223 to block the sealing opening 5223. The control assembly 524 is used to drive the valve core 5231 to overcome the elastic force of the sealing elastic member 5234 and open the sealing opening 5223. The control switch can be a mechanical structure manually controlled by a user, or an electric control switch that receives a user control instruction and performs an electric control operation.

[0129] For further information, please refer to Fig.13 and 14In some embodiments, the control assembly 524 includes a transmission member 5241 and a command input member 5242. The liquid discharge cylinder 5221 has a linkage channel 5224, which is communicated with the liquid channel 5222, and the transmission member 5241 is sealed and arranged in the linkage channel 5224, and can move in the linkage channel 5224. The transmission member 5241 forms a linkage with the valve core 5231 in the liquid channel 5222, and the linkage includes that the movement of the transmission member 5241 can at least drive the valve core 5231 to break away from the sealing port 5223 and / or block the sealing port 5223. The command input member 5242 is linked with the transmission member 5241 to control the movement of the transmission member 5241, and then control the movement of the valve core 5231. The linkage between the command input member 5242 and the transmission member 5241 can be either a mechanical structure linkage or an electrical signal coupling linkage.

[0130] Please refer to Fig.13 and 14 In some embodiments, the valve core 5231 has a sealing portion 5232 and an unlocking portion 5233, wherein the sealing portion 5232 is used to seal and block the sealing port 5223. The sealing port 5223 is a conical port, and the sealing portion 5232 extends from the side with a larger diameter of the sealing port 5223 to the side with a smaller diameter thereof, and abuts against the sealing port 5223. Relative to the sealing portion 5232, the unlocking portion 5233 is located in the direction in which the sealing portion 5232 is away from the sealing port 5223. The unlocking portion 5233 has an inclined unlocking surface 5234. The linkage channel 5224 is arranged along the radial direction of the liquid channel 5222 and is perpendicular to the liquid channel 5222. The transmission member 5241 is inserted into the liquid channel 5222 along the radial direction, and forms a linkage structure with the unlocking portion 5233. The transmission member 5241 has an unlocking inclined surface 5244, which cooperates with the unlocking surface 5234 of the unlocking portion 5233. When the transmission member 5241 is inserted along the radial direction of the liquid channel 5222, the unlocking portion 5233 is pushed to drive the sealing portion 5232 to move away from the sealing opening 5223, so that the sealing portion 5232 is separated from the sealing opening 5223. When the transmission member 5241 is withdrawn along the radial direction of the liquid channel 5222, the sealing portion 5232 and the unlocking portion 5233 move under the action of the sealing elastic member 5234, and the sealing portion 5232 resumes sealing the sealing opening 5223.

[0131] Please refer to Fig.14 In some embodiments, the valve core 5231 has a through unlocking hole 5235, which is communicated with the linkage channel 5224. The unlocking surface 5234 of the unlocking portion 5233 is located on the inner wall of the unlocking hole 5235. The unlocking hole 5235 is used for the transmission member 5241 to be inserted and push the valve core 5231 to open the sealing port 5223.

[0132] Of course, in other embodiments, the transmission member 5241 and the valve core 5231 may be unlocked by other transmission methods.

[0133] Please refer to Fig.13 and 14 In some embodiments, the transmission member 5241 may also be provided with a resetting elastic member, which is used to drive the transmission member 5241 to release the unlocking portion 5233, so that the sealing portion 5232 maintains the state of sealing the sealing opening 5223. The command input member 5242 can be used to control the transmission member 5241 to push the unlocking portion 5233 to unlock the sealing opening 5223.

[0134] Please refer to Fig.13 and 14 In some embodiments, the command input member 5242 is a button that is movably mounted on the connector housing 521. The user can drive the transmission member 5241 to move by pressing the button, thereby opening the sealing port 5223 and placing the external connector 52 in an open state.

[0135] Please refer to Fig.13 and 14 In some embodiments, one end of the command input member 5242 is rotatably connected to the joint housing 521, and the other end can rotate around its rotation axis. The inner wall of the command input member 5242 is provided with a spherical protrusion 5245. During the rotation of the command input member 5242, the spherical protrusion 5245 can directly or indirectly drive the transmission member 5241 to be inserted into the liquid channel 5222. The spherical protrusion 5245 has a spherical shape, and the command input member 5242 can rotate to any angle to ensure that the spherical protrusion 5245 can fully press the transmission member 5241.

[0136] Furthermore, in some embodiments, in order to save the user's effort, the external connector 52 further includes a switch self-locking component, which can lock the external connector 52 in an open state without the user having to exert force to control the external connector 52. The switch self-locking component can adopt any structure applicable to the external connector 52.

[0137] Please refer to Fig.15 and 16In some more specific embodiments, the switch self-locking assembly includes a self-locking hook 5251 and a self-locking block 5253. One end of the self-locking hook 5251 has a hook portion 5252. The self-locking block 5253 has a protruding self-locking portion 5254, and the self-locking portion 5254 includes a first sliding surface 5255, a self-locking groove 5256, and a second sliding surface 5257. The self-locking groove 5256 is located between the end of the first sliding surface 5255 and the end of the second sliding surface 5257 (in the initial state, the end of the first sliding surface 5255 and the second sliding surface 5257 that is more away from the self-locking hook 5251 is the end), so that the hook portion 5252 can be locked in the self-locking groove 5256 during the relative movement with the self-locking block 5253. The front end of the first sliding surface 5255 and the front end of the second sliding surface 5257 (in the initial state, the first sliding surface 5255 and the second sliding surface 5257 closer to the self-locking hook 5251 are the front ends) are connected to each other, so that the self-locking hook 5251 can slide from the second sliding surface 5257 to the first sliding surface 5255. The self-locking groove 5256 is concave in the direction of the self-locking hook 5251. The self-locking hook 5251 and the self-locking block 5253 can move relative to each other. Fig.15 and 16 In the illustrated embodiment, the self-locking hook 5251 is fixedly arranged on the liquid discharge cylinder 5221 or other parts fixed relative to the joint housing 521, and the self-locking block 5253 is installed on the command input member 5242 and moves with the command input member 5242. Of course, in other embodiments, the self-locking hook 5251 may also be installed on the command input member 5242, move with the command input member 5242, and the self-locking block 5253 is fixedly arranged on the liquid discharge cylinder 5221 or other parts fixed relative to the joint housing 521.

[0138] Please refer to Fig.15When the command input member 5242 is not triggered, the self-locking hook 5251 and the self-locking block 5253 are in an unlocked state, and the self-locking hook 5251 is opposite to the first sliding surface 5255, and the first sliding surface 5255 is obliquely arranged relative to the self-locking hook 5251. When the command input member 5242 is pressed, the self-locking block 5253 moves relative to the self-locking hook 5251, and the hook portion 5252 first contacts the first sliding surface 5255. The obliquely arranged first sliding surface 5255 guides the hook portion 5252 to move along the outer contour of the first sliding surface 5255 to the position of the self-locking groove 5256. During the relative movement, the self-locking hook 5251 deviates from the position with the inclination angle of the first sliding surface 5255, and then deforms. The deformation causes the self-locking hook 5251 to have a tendency to reset. When the hook portion 5252 moves relatively to a position beyond the first sliding surface 5255, the hook portion 5252 resets under the action of its elastic restoring force. At this time, the self-locking part 5254 also includes a guide part 5256, which is located in the opening direction of the self-locking groove 5256 and is also located on the reset path of the hook part 5252 after it is separated from the first sliding surface 5255. The guide part 5256 is used to limit the reset hook part 5252 and block it at a position relative to the opening of the self-locking groove 5256. At this time, the self-locking hook 5251 is still deviated from the initial position and has an elastic restoring force. Thereafter, when the user releases the command input member 5242, the command input member 5242 is reset, so that the hook part 5252 falls into the self-locking groove 5256 and forms a self-locking. At this time, the position of the hook part 5252 is still deviated from the initial position and has an elastic restoring force, but the two side groove walls of the self-locking groove 5256 limit the hook part 5252, so the self-locking hook 5251 cannot be reset to the initial position and will remain in the self-locking groove 5256. At this time, the external joint 52 is in a state where the liquid channel 5222 is open. The user does not need to apply force to the command input member 5242, and the external connector 52 can remain in the open state.

[0139] When the external connector 52 needs to be closed, the user can press the command input member 5242 again to move the self-locking groove 5256 away from the hook portion 5252, and a structure is formed between the guide portion 5256 and the self-locking groove 5256 to guide the hook portion 5252 to move from the self-locking groove 5256 to the second sliding surface 5257, so that the hook portion 5252 is separated from the self-locking groove 5256. During the separation process, the guide portion 5256 forms a limit on the hook portion 5252, so that the hook portion 5252 can only move to the position where the second sliding surface 5257 is located. When the hook portion 5252 is completely separated from the self-locking groove 5256, the self-locking portion 5254 no longer limits the hook portion 5252, and the self-locking hook 5251 returns to the initial position along the second sliding surface 5257.

[0140] For further information, please refer to Fig.15 and 16In some embodiments, the self-locking hook 5251 is fixed on the liquid discharge cylinder 5221, and has a pair of hooks 5252 arranged opposite to each other. The self-locking block 5253 has two self-locking parts 5254 arranged opposite to each other, and one hook 5252 is arranged corresponding to one self-locking part 5254. When the command input member 5242 drives the self-locking block 5253 to move relative to the self-locking hook 5251, each hook 5252 moves relative to the corresponding self-locking part 5254 synchronously to complete self-locking, so as to improve the stability of self-locking.

[0141] Please refer to Fig.15 and 16 In some embodiments, the self-locking hook 5251 is an n-shaped structure, which is fixed on the liquid discharge cylinder 5221. The liquid discharge cylinder 5221 is provided with a self-locking hook fixing portion 5259, and the self-locking hook fixing portion 5259 is provided with a limiting groove, and the self-locking hook 5251 is fixed in the limiting groove.

[0142] Please refer to Fig.17 In some embodiments, the command input member 5242 has a cavity structure, and the self-locking block 5253 is fixedly installed in the cavity structure.

[0143] Furthermore, in some embodiments, other external functional heads can be connected externally. The external functional heads can be various functional connectors used for cleaning purposes, such as but not limited to high-pressure nozzles, cleaning liquid pots, cleaning brush heads, etc.

[0144] In order to provide convenience of use, in some embodiments, the external connector 52 has an expansion interface component 526, and at least two types of external functional heads can share the expansion interface component 526 for docking, so that the external connector 52 can selectively expand more external functional heads without replacing the expansion interface component 526.

[0145] For example, see Fig.18 and 19 In some embodiments, the cleaning device 1 further includes at least two types of external functional heads 81 , 82 , and both of these external functional heads 81 , 82 can be docked onto the external connector 52 .

[0146] Specifically, please refer to Fig. 20 and 21In some embodiments, the expansion interface assembly 526 includes a plug-in body 5261, a clamping elastic member 5262, and a state switching sleeve 5263. The plug-in body 5261 can be a part of the liquid discharge cylinder 5221, or can be fixedly connected with the liquid discharge cylinder 5221 as two different parts. The plug-in body 5261 has a through plug-in interface 52611, which is in communication with the liquid channel 5222 or is a part of the liquid channel 5222. The 52611 plug-in interface can be used as a flushing port and can be docked with at least one external functional head.

[0147] The snap-on elastic member 5262 is an annular structure (or other structures), which is sleeved and fixed on the plug-in body 5261. The side wall or other positions of the plug-in body 5261 are provided with an opening 52612, and the snap-on elastic member 5262 has an elastic snap 52621, which extends from the opening 52612 into the plug-in port 52611. When the external functional head is inserted into the plug-in port 52611, the elastic snap 52621 forms an outward limit for the external functional head, that is, prevents the external functional head from being outwardly separated from the plug-in body 5261. Correspondingly, the external functional head is also provided with a snap-on structure that cooperates with the elastic snap 52621, and the snap-on structure and the elastic snap 52621 form an outward limit snap-on structure. For example, the snap-on structure can be a boss 801 or a ridge 801, etc.

[0148] In order to make the buckle structure move smoothly to the inner side of the elastic buckle 52621 during the insertion process, the elastic buckle 52621 is pressed against the buckle structure from the outside. In some embodiments, the state switching sleeve 5263 is movably arranged on the plug-in body 5261, and the state switching sleeve 5263 has a locking position and an unlocking position. When the state switching sleeve 5263 is in the locking position, the state switching sleeve 5263 prevents the elastic buckle 52621 from moving radially (roughly radially) outward from the plug-in interface 52611, so as to prevent the external functional head from being inserted and removed; when the state switching sleeve 5263 is in the unlocking position, the state switching sleeve 5263 allows the elastic buckle 52621 to move radially outward from the plug-in interface 52611, so as to facilitate the insertion and removal of the external functional head.

[0149] Please refer to Fig.21In some embodiments, the state switching sleeve 5263 has a locking abutment 52631 and an avoidance portion 52632, wherein on the side facing the direction of the elastic buckle 52621, the locking abutment 52631 protrudes more toward the elastic buckle 52621 relative to the avoidance portion 52632. When the state switching sleeve 5263 is located in the locking position, the locking abutment 52631 is opposite to the elastic buckle 52621, preventing the elastic buckle 52621 from moving radially outward from the plug-in interface 52611; when the state switching sleeve 5263 is located in the unlocking position, the avoidance portion 52632 is opposite to the elastic buckle 52621, and there is an avoidance space between the avoidance portion 52632 and the elastic buckle 52621, so that the elastic buckle 52621 can move radially outward from the plug-in interface 52611.

[0150] Please refer to Fig.21 In some embodiments, the state switching sleeve 5263 is wrapped around the plug body 5261 and the clamping elastic member 5262, and the state switching sleeve 5263 can move along the axial direction of the plug body 5261. Along the axial direction of the state switching sleeve 5263, the locking abutment 52631 is located on the inner side of the avoidance portion 52632 (the side closer to the outlet of the plug interface 52611 of the plug body 5261 is the outer side, and the opposite side is the inner side). Of course, in other embodiments, in the axial direction of the state switching sleeve 5263, the locking abutment 52631 can also be located on the outer side of the avoidance portion 52632.

[0151] In addition, in other embodiments, the state switching sleeve 5263 can also move in other directions, such as moving along the circumference of the plug-in body 5261, such as rotating.

[0152] During the axial movement of the state switching sleeve 5263 along the plug-in body 5261, when the avoidance portion 52632 moves to a position opposite to the elastic buckle 52621, an avoidance space is formed between the avoidance portion 52632 and the elastic buckle 52621, and the avoidance space allows the elastic buckle 52621 to move outward. At this time, when the external functional head is plugged in or out, the external functional head can squeeze the elastic buckle 52621 to deform in the direction of the avoidance portion 52632, thereby completing the insertion and extraction. When the locking abutment portion 52631 moves to a position opposite to the elastic buckle 52621, that is, Fig.21 In the state shown, the locking abutment 52631 limits the elastic buckle 52621, and the elastic buckle 52621 cannot be greatly deformed to the position of the locking abutment 52631, so it can clamp the buckle structure of the inserted external functional head from the outside to the inside. The user can switch the state of the elastic buckle 52621 by moving the position of the state switching sleeve 5263, so that it switches between the unlocked state and the locked state.

[0153] For ease of use, in some embodiments, the state switching sleeve 5263 can be kept in a locked position by a reset elastic member, for example, the locking abutment portion 52631 is kept in a state opposite to the elastic buckle 52621, so that the elastic buckle 52621 is in a locked state. When the external functional head needs to be inserted or unplugged, the user can control the state switching sleeve 5263 to move to the avoidance portion 52632 opposite to the elastic buckle 52621, even if the elastic buckle 52621 is in an unlocked state, thereby completing the plugging and unplugging of the external functional head. When the plugging and unplugging operation is completed, the external force applied by the user to the state switching sleeve 5263 disappears, and the state switching sleeve 5263 automatically returns to the state where the locking abutment portion 52631 is opposite to the elastic buckle 52621 under the action of the reset elastic member.

[0154] Please refer to Figure 20-22 In some embodiments, the snap-on elastic member 5262 further includes a reset elastic portion 52622, which is used as a reset elastic member of the state switching sleeve 5263. The reset elastic portion 52622 acts on the state switching sleeve 5263 to keep the state switching sleeve 5263 in a state where the locking abutment portion 52631 is opposite to the elastic buckle 52621.

[0155] For further information, please refer to Fig. 22 In some embodiments, the clamping elastic member 5262 has an annular base 52624, and the elastic buckle 52621 and the reset elastic part 52622 are both arranged on the base 52624. In some embodiments, there are more than two elastic buckles 52621 and reset elastic parts 52622, which are arranged crosswise on the base 52624. When the clamping elastic member 5262 is sleeved on the plug-in body 5261, the reset elastic part 52622 is located on the outer side of the plug-in body 5261. When the state switching sleeve 5263 is sleeved on the plug-in body 5261, the reset elastic part 52622 abuts against the inner wall of the state switching sleeve 5263 to keep the state switching sleeve 5263 in a state where the locking abutment part 52631 is opposite to the elastic buckle 52621. When the user drives the state switching sleeve 5263 to move inwardly along the axial direction, the state switching sleeve 5263 squeezes the reset elastic part 52622 to deform it. When the external force applied to the state switching sleeve 5263 by the user disappears, the reset elastic part 52622 drives the state switching sleeve 5263 to automatically reset.

[0156] For further information, please refer to Fig.21 In some embodiments, the inner wall of the state switching sleeve 5263 has an inclined extrusion surface 52633. When the user drives the state switching sleeve 5263 to move inward along the axial direction, the inclined extrusion surface 52633 will squeeze the reset elastic part 52622 to deflect radially inward, thereby forming elastic deformation. When the reset elastic part 52622 is reset, it can push the state switching sleeve 5263 to move outward along the axial direction.

[0157] In the above embodiment, the snap-fit ​​elastic member 5262 realizes the snap-fitting of the external functional head and the resetting of the state switching sleeve 5263 through a simple structure, which is beneficial to the simplification and compactness of the structure and can reduce the volume of the external connector 52.

[0158] In addition, in other embodiments, the reset elastic member may also adopt other independently arranged elastic members, such as a spring arranged axially on the state switching sleeve 5263, to keep the state switching sleeve 5263 in a state where the locking abutment portion 52631 is relative to the elastic buckle 52621.

[0159] Furthermore, in some embodiments, a limiting structure for limiting the inward movement of the external functional head may be provided in the side wall of the plug port 52611. When the external functional head is inserted to the position of the limiting structure, the limiting structure prevents the external functional head from continuing to move inward, thereby preventing the external functional head from being inserted too deeply.

[0160] For some examples, please refer to Fig.21 The limiting structure can be a plurality of separate card platforms 52613 or annular abutment surfaces 52613 arranged on the side wall of the plug-in port 52611. Correspondingly, the external functional head is also provided with a corresponding card connection structure cooperating with the limiting structure, which can also be a plurality of separate card platforms or annular abutment surfaces.

Claims

1. A portable cleaning device with a joint self-locking function, characterized in that: include: A housing, wherein the housing has a liquid storage cavity, a waterproof sealing cavity and a pipeline receiving cavity, the liquid storage cavity has a liquid inlet, and the waterproof sealing cavity is sealed and separated from the liquid storage cavity and the pipeline receiving cavity; A driving pump, wherein the driving pump is disposed in the waterproof sealed cavity, the liquid storage cavity has a water outlet, and the driving pump is sealed and connected to the water outlet; A control unit, the control unit is arranged in the waterproof sealing cavity, the control unit is electrically connected to the driving pump, and is used to control the operation of the driving pump; And a flushing pipeline, the flushing pipeline includes a tube body and an external joint for an external functional head, one end of the tube body is sealed and connected to the output end of the driving pump, the other end of the tube body is sealed and connected to the external joint, the external joint has a liquid channel, a control component for controlling the opening and closing of the liquid channel, and a switch self-locking component, and the switch self-locking component can lock the control component in an open position.

2. The portable cleaning device according to claim 1, characterized in that The switch self-locking component includes a self-locking hook and a self-locking block, one of which moves with the control component, and the other remains relatively fixed with the liquid channel; one end of the self-locking hook has a hook portion, and the self-locking block has a raised self-locking portion, and the self-locking portion has a first sliding surface, a self-locking groove, and a second sliding surface, and the self-locking groove is located between the end of the first sliding surface and the end of the second sliding surface, so that the hook can be locked in the self-locking groove during relative movement with the self-locking block, the front end of the first sliding surface and the front end of the second sliding surface are connected to each other, and the self-locking hook can slide from the second sliding surface to the first sliding surface.

3. The portable cleaning device according to claim 2, characterized in that The self-locking part also includes a guiding part; when the control component is not triggered, the hook part is opposite to the first sliding surface, and the first sliding surface is obliquely arranged relative to the hook part; when the control component is pressed, the hook part contacts and moves relative to the self-locking block along the first sliding surface to the position of the self-locking groove, and the self-locking hook produces position deviation and deformation during the relative movement; the guiding part is located in the opening direction of the self-locking groove, and is located on the reset path of the hook part after it is separated from the first sliding surface. When the hook part moves relatively to the end beyond the first sliding surface, the hook part remains at the guiding part or the self-locking groove, and after the external force pressing the control component disappears, the hook part is locked in the self-locking groove under the elastic restoring force.

4. The portable cleaning device according to claim 3, characterized in that When the control component is pressed again, a structure is formed between the guide portion and the self-locking groove to guide the hook portion to move from the self-locking groove to the second sliding surface, so that the hook portion is disengaged from the self-locking groove; after the external force pressing the control component disappears, the hook portion returns to its initial position under the elastic restoring force.

5. The portable cleaning device according to claim 2, characterized in that The self-locking block is installed on the control assembly, and the self-locking hook is kept relatively fixed with the liquid channel.

6. The portable cleaning device according to any one of claims 1 to 5, characterized in that: The external joint comprises a joint housing, a liquid outlet channel assembly and a valve assembly, wherein the liquid outlet channel assembly is mounted on the joint housing, and the liquid outlet channel assembly comprises the liquid channel and a linkage channel, wherein the linkage channel is connected to the liquid channel; the valve assembly comprises a valve core for blocking the liquid channel, and the control assembly comprises a transmission member and a command input member, wherein the transmission member is sealed in the linkage channel and can move in the linkage channel, wherein the transmission member and the valve core form a linkage structure, and the command input member and the transmission member form a linkage structure to control the movement of the transmission member and drive the valve core to detach from the sealing port and / or block the sealing port.

7. The portable cleaning device according to claim 6, characterized in that The valve assembly includes a valve core, which is arranged in the liquid channel. A sealing port is provided in the liquid channel, and the valve core is used to seal the sealing port; the valve core has an inclined unlocking surface, the transmission member has an unlocking inclined surface, the linkage channel is arranged along the radial direction of the liquid channel, and the transmission member is inserted along the radial direction of the liquid channel so that the unlocking inclined surface cooperates with the unlocking surface of the valve core to push the valve core to unlock the sealing port.

8. The portable cleaning device according to claim 7, characterized in that The valve core has a through unlocking hole, the unlocking hole is communicated with the linkage channel, the unlocking surface is located on the inner hole wall of the unlocking hole, and the unlocking hole is used for the transmission member to be inserted and push the valve core to open the sealing port.

9. The portable cleaning device according to claim 6, characterized in that The transmission member is provided with a reset elastic member, and the reset elastic member is used to drive the transmission member to move in the direction of opening the sealing port; the valve core assembly also includes a sealing elastic member, and the sealing elastic member directly or indirectly acts on the valve core to provide the valve core with elastic force to drive the valve core to keep blocking the sealing port.

10. The portable cleaning device according to claim 6, characterized in that One end of the command input member is rotatably connected to the joint housing, and the other end can rotate around its rotation axis. The inner wall of the command input member has a spherical protrusion, and the spherical protrusion has a spherical shape. During the rotation of the command input member, the spherical protrusion can directly or indirectly transmit the transmission member to move into the liquid channel.

Images