Liquid injection assembly, base station and self-moving cleaning equipment

Abstract

The utility model provides a liquid injection assembly, a base station and self-moving cleaning equipment. When the liquid injection assembly is installed on an installation object such as a base station, the liquid injection assembly can be installed on a shell of the installation object through the elastic installation part, and therefore the liquid injection assembly can perform small-amplitude relative movement relative to the shell through the elasticity of the elastic installation part. Therefore, the liquid injection assembly can be aligned to and inserted into a liquid inlet channel of a liquid-injected object such as self-moving cleaning equipment. In addition, in the state that the liquid injection assembly is inserted into the liquid inlet channel, the sealing part can make contact with the inner circumferential wall of the liquid inlet channel to achieve sealing, and therefore liquid from the liquid injection runner is prevented from leaking out of a gap between the liquid injection nozzle and the inner circumferential wall of the liquid inlet channel.

Description

Technical Field

[0001] The present disclosure relates to the structure of a base station of a self - moving cleaning device, and particularly to a liquid injection assembly for a base station, a base station including the liquid injection assembly, and a self - moving cleaning device cooperating with the base station. Background Art

[0002] An autonomous mobile device refers to an intelligent mobile device that autonomously executes preset tasks, and the autonomous mobile device can autonomously move on a traveling surface according to the results sensed by its sensing components. Currently, autonomous mobile devices generally include, but are not limited to, self - moving cleaning devices (such as intelligent sweepers, intelligent mopping machines, window - cleaning robots), companion - type mobile robots (such as intelligent electronic pets, nanny robots), service - type mobile robots (such as reception robots in hotels, inns, and meeting places), industrial inspection intelligent devices (such as power inspection robots, intelligent forklifts, etc.), and security robots (such as household or commercial intelligent guard robots).

[0003] Cooperating with the autonomous mobile device, a base station is usually also provided and positioned on the traveling surface for the autonomous mobile device to travel. The base station may have a guiding system for guiding the autonomous mobile device to dock. When the autonomous mobile device finishes executing tasks or needs to be charged, the guiding system can enable the autonomous mobile device to dock with the base station, and then operations such as charging the autonomous mobile device can be carried out. Further, when the autonomous mobile device is a self - moving cleaning device with a wet cleaning component, in the state where the self - moving cleaning device docks with the base station, the base station's liquid supply system can supply cleaning liquid such as water to the liquid inlet passage of the self - moving cleaning device. Therefore, a liquid injection assembly that can be aligned and inserted with the liquid inlet passage of the self - moving cleaning device to supply cleaning liquid is required. Summary of the Utility Model

[0004] Based on the problems of the above - mentioned prior art, the purpose of the present disclosure is to provide a liquid injection assembly that can be aligned and inserted with the liquid inlet passage of a self - moving cleaning device, and then smoothly supply cleaning liquid to the self - moving cleaning device. Another purpose of the present disclosure is to provide a base station including the above - mentioned liquid injection assembly and a self - moving cleaning device cooperating with the base station.

[0005] To achieve the above purpose, the present disclosure adopts the following technical solutions.

[0006] The present disclosure provides a liquid injection assembly as follows, including:

[0007] A liquid injection nozzle, inside which a liquid injection flow path for liquid flow is formed. The liquid injection nozzle includes a cylindrical body, and an opening facing outward is formed at the end surface of one axial end of the cylindrical body of the liquid injection flow path.

[0008] An elastic mounting portion, which is mounted on the cylindrical body in a manner of surrounding the outer periphery of the cylindrical body; and

[0009] A sealing portion, which is mounted on the cylindrical body in a manner of surrounding the outer periphery of the cylindrical body, and the sealing portion is positioned at a position closer to the opening than the elastic mounting portion.

[0010] In an alternative embodiment, the elastic mounting portion is formed with a first mounting hole and the sealing portion is formed with a second mounting hole.

[0011] The cylindrical body includes:

[0012] A first axial portion, which is inserted into the first mounting hole so that the elastic mounting portion is mounted on the first axial portion;

[0013] A second axial portion, which is inserted into the second mounting hole so that the sealing portion is mounted on the second axial portion; and

[0014] A third axial portion, whose outer diameter is larger than the outer diameter of the first axial portion and larger than the outer diameter of the second axial portion, and the third axial portion is axially located between the first axial portion and the second axial portion in the cylindrical body.

[0015] In another alternative embodiment, the cylindrical body further includes a guiding portion, the guiding portion includes a cylindrical portion and a tapered portion, the second axial portion is axially located between the third axial portion and the cylindrical portion, the outer diameter of the cylindrical portion remains constant all the time, and the outer diameter of the tapered portion gradually decreases from the cylindrical portion towards the end face of the axial one end portion.

[0016] In another alternative embodiment, the liquid injection nozzle further includes a connecting joint, the connecting joint is fixedly connected to the axial other end portion of the cylindrical body, and the connecting joint extends along the radial direction of the cylindrical body, the liquid injection flow passage extends from the cylindrical body to the connecting joint and an opening is formed at the radially outer end portion of the connecting joint.

[0017] In another alternative embodiment, the liquid injection assembly further includes a bracket, the bracket is fixedly connected to the axial other end portion of the cylindrical body and is arranged at an interval from the connecting joint, and the bracket is formed with a through hole for inserting a connecting member.

[0018] In another alternative embodiment, the outer peripheral surface of the elastic mounting portion is formed as an annular mounting surface, and the annular mounting surface continuously extends in the circumferential direction of the elastic mounting portion over the entire circumference.

[0019] In another alternative solution, the sealing portion includes an annular base body and a plurality of sealing lips. The annular base body is mounted on the cylindrical body, and the plurality of sealing lips are arranged at intervals in the axial direction of the annular base body. Each sealing lip protrudes from the annular base body toward the radially outer side to the radially outer side of the cylindrical body.

[0020] The present disclosure also provides a base station as follows, including

[0021] a housing, which is formed with a mounting hole; and

[0022] the liquid injection assembly according to any one of the above technical solutions. The liquid injection nozzle of the liquid injection assembly is inserted through the mounting hole. The elastic mounting portion of the liquid injection assembly is located in the mounting hole and is in shape fit with the mounting hole, and one axial end portion of the liquid injection nozzle protrudes from the housing.

[0023] The present disclosure also provides a self - moving cleaning device as follows. The self - moving cleaning device can cooperate with the base station according to the above technical solutions.

[0024] The self - moving cleaning device is formed with a receiving space for receiving a cleaning liquid and a liquid inlet passage communicating with the receiving space. In a state where the self - moving cleaning device is docked to the base station, the liquid injection assembly is inserted into the liquid inlet passage, and the sealing portion of the liquid injection assembly and the inner peripheral surface of the liquid inlet passage are in contact with each other to achieve sealing.

[0025] In an alternative solution, a one - way valve is further included. The one - way valve is mounted in the liquid inlet passage, and the one - way valve is used to enable one - way injection of the cleaning liquid into the receiving space via the liquid inlet passage.

[0026] By adopting the above technical solutions, the present disclosure provides a liquid injection assembly, a base station, and a self - moving cleaning device. The liquid injection assembly includes a liquid injection nozzle, an elastic mounting portion, and a sealing portion assembled together. A liquid injection flow passage for liquid flow is formed inside the liquid injection nozzle. The liquid injection nozzle includes a cylindrical body, and the liquid injection flow passage forms an opening facing outward at the end surface of one axial end portion of the cylindrical body. The elastic mounting portion is mounted on the cylindrical body in a manner of sleeving on the outer periphery of the cylindrical body. The sealing portion is mounted on the cylindrical body in a manner of sleeving on the outer periphery of the cylindrical body, and the sealing portion is positioned at a position closer to the opening than the elastic mounting portion.

[0027] Thus, in a state where the liquid injection assembly according to the present disclosure is installed on an installation object such as a base station, the liquid injection assembly can be installed on the housing of the installation object via the elastic mounting portion. Thereby, the liquid injection assembly can perform a small relative movement with respect to the housing by virtue of the elasticity of the elastic mounting portion itself, which is beneficial for the liquid injection assembly to align with and insert into the liquid inlet passage of a liquid injection object such as a self - moving cleaning device. In addition, in a state where the liquid injection assembly is inserted into the above - mentioned liquid inlet passage, the sealing portion can contact the inner peripheral wall of the liquid inlet passage to achieve sealing, thereby preventing the liquid from the liquid injection flow path from leaking out through the gap between the liquid injection nozzle and the inner peripheral wall of the liquid inlet passage. Description of the Drawings

[0028] Figure 1 is a perspective schematic view showing a liquid injection assembly according to an embodiment of the present disclosure.

[0029] Figure 2 is a perspective schematic view showing a partial structure of a base station according to an embodiment of the present disclosure, the base station including Figure 1 the liquid injection assembly in

[0030] Figure 3 is showing Figure 2 a partial enlarged schematic view of

[0031] Figure 4 is showing Figure 2 a partial cross - sectional schematic view of the base station in , where the cross - hatching is omitted.

[0032] Figure 5 is a perspective schematic view showing a self - moving cleaning device according to an embodiment of the present disclosure, the self - moving cleaning device being capable of cooperating with Figure 2 the base station in

[0033] Figure 6 is showing Figure 5 a partial cross - sectional schematic view of the self - moving cleaning device in , where the cross - hatching is omitted.

[0034] Figure 7 is for explaining Figure 1 the state where the liquid injection assembly in Figure 5 is inserted into the liquid inlet passage of the self - moving cleaning device in

[0035] Description of Reference Numerals

[0036] IL - Liquid injection assembly;

[0037] 1 - Liquid injection nozzle; 1p - Liquid injection flow path; 11 - Cylindrical body; 111 - First axial portion; 112 - Second axial portion; 113 - Third axial portion; 114 - Guide portion; 1141 - Cylindrical portion; 1142 - Tapered portion; 12 - Connection joint; 13 - Bracket;

[0038] 2 - Elastic mounting part; 2s - Annular mounting surface;

[0039] 3 - Sealing part; 31 - Ring-shaped base body; 32 - Sealing lip;

[0040] CS - Base station;

[0041] 4 - Housing; 4h - Mounting hole;

[0042] AM - Self - moving cleaning device;

[0043] 5 - Main body part; 5c - Accommodating space; 5p - Liquid inlet passage;

[0044] 6 - Check valve. Detailed implementation manners

[0045] The embodiments of the present disclosure will be described below with reference to the accompanying drawings. For ease of understanding, among the elements shown in each drawing, there may be elements that are represented differently from the actual dimensions and scales, such as dimensions and scales.

[0046] In the present disclosure, unless otherwise specifically stated, "axial direction", "radial direction" and "circumferential direction" respectively refer to the axial direction, radial direction and circumferential direction of the cylindrical body of the liquid injection nozzle.

[0047] The liquid injection assembly according to the embodiments of the present disclosure will be described below with reference to the accompanying drawings of the specification.

[0048] As Figure 1 and Figure 4 shown, the liquid injection assembly IL according to the embodiments of the present disclosure includes a liquid injection nozzle 1, an elastic mounting part 2 and a sealing part 3 assembled together. The liquid injection nozzle 1 can be made of a rigid material such as plastic, etc., which has a relatively high hardness and is basically not corroded by the cleaning liquid. The elastic mounting part 2 and the sealing part 3 can both be made of an elastic material such as silicone rubber, etc., which has a certain elasticity and can return to the original state after elastic deformation. The elastic mounting part 2 and the sealing part 3 are mounted on the liquid injection nozzle 1 separately from each other.

[0049] In this embodiment, as Figure 1 and Figure 4 shown, the liquid injection nozzle 1 includes a cylindrical body 11, a connection joint 12 and a bracket 13 that are fixed to each other. The cylindrical body 11, the connection joint 12 and the bracket 13 can be integrally formed. Further, as Figure 4As shown, a liquid injection passage 1p for the flow of liquid is formed inside the liquid injection nozzle 1. The liquid injection passage 1p has an opening facing outward formed at an end surface of one axial end of the cylindrical body 11, and another opening facing outward formed at a radially outer end of the connection joint 12. Thus, a cleaning liquid such as water entering the liquid injection passage 1p through the opening of the connection joint 12 can flow out through the opening of the cylindrical body 11.

[0050] As Figure 1 and Figure 4 shown, the cylindrical body 11 includes a first axial portion 111, a second axial portion 112, a third axial portion 113, and a guiding portion 114 that are connected to each other. The first axial portion 111 is inserted into a first mounting hole of the elastic mounting portion 2 such that the elastic mounting portion 2 is sleeved on the first axial portion 111. The second axial portion 112 is inserted into a second mounting hole of the sealing portion 3 such that the sealing portion 3 is sleeved on the second axial portion 112. The outer diameter of the third axial portion 113 is greater than the outer diameter of the first axial portion 111 and greater than the outer diameter of the second axial portion 112. The third axial portion 113 is located between the first axial portion 111 and the second axial portion 112 in the axial direction of the cylindrical body 11. Thus, a stepped structure is respectively formed between the first axial portion 111 and the third axial portion 113 and between the second axial portion 112 and the third axial portion 113. The third axial portion 113 separates the elastic mounting portion 2 sleeved on the first axial portion 111 and the sealing portion 3 sleeved on the second axial portion 112. Further, the guiding portion 114 includes a cylindrical portion 1141 and a tapered portion 1142 that are connected to each other. The second axial portion 112 is located between the third axial portion 113 and the cylindrical portion 1141 in the axial direction. The outer diameter of the cylindrical portion 1141 remains constant and is greater than the outer diameter of the second axial portion 112. The outer diameter of the tapered portion 1142 gradually decreases from the cylindrical portion 1141 toward the end surface of one axial end of the cylindrical body 11.

[0051] In this way, the elastic mounting portion 2 and the sealing portion 3 are respectively stably supported by the first axial portion 111 and the second axial portion 112 of the cylindrical body 11, and the elastic mounting portion 2 and the sealing portion 3 are axially limited by the third axial portion 113 of the cylindrical body 11 located between these two axial portions 111 and 112. In addition, the guiding portion 114 cooperates with the third axial portion 113 to axially limit the sealing portion 3. During the process of inserting the liquid injection assembly IL into, for example, the liquid inlet passage 5p of the liquid injection object of the self - moving cleaning device AM (see Figure 7 ), the tapered portion 1142 of the guiding portion 114 can guide the liquid injection assembly IL to be smoothly inserted into the liquid inlet passage 5p. Moreover, the cylindrical portion 1141 of the guiding portion 114 is used to define the gap between the inner side wall of the liquid inlet passage 5p and the guiding portion 114 and is conducive to further alignment of the liquid injection assembly IL with the liquid inlet passage 5p.

[0052] As Figure 1 and Figure 4 shown, the connection joint 12 is fixedly connected to the other axial end of the cylindrical body 11, that is, the connection joint 12 is fixedly connected to the first axial portion 111. The connection joint 12 extends radially outward from the other axial end of the cylindrical body 11 along the radial direction of the cylindrical body 11. The end of the connection joint 12 away from the cylindrical body 11 is formed into a tapered shape, which is beneficial for connecting with the liquid supply system. By using the connection joint 12 extending along the radial direction of the cylindrical body 11, while facilitating the connection between the liquid injection assembly IL and the liquid supply system, it can also shorten the axial dimension of the liquid injection assembly IL.

[0053] As Figure 1 and Figure 4 shown, the bracket 13 is fixedly connected to the other axial end of the cylindrical body 11, that is, the bracket 13 is fixedly connected to the first axial portion 111. The bracket 13 is arranged at an interval from the connection joint 12, so that the bracket 13 does not interfere with the connection between the connection joint 12 and the liquid supply system. In this embodiment, as Figure 1 shown, the bracket 13 has a frame structure composed of a plurality of side walls and a bottom wall. However, the present disclosure is not limited thereto, and the bracket 13 can be formed into different shapes according to actual needs. Further, a through hole (not shown) for inserting a connecting member is formed in the bottom wall of the bracket 13. In this way, the bracket 13 can play a role in inserting the connecting member into the through hole of the bracket 13, so that the liquid injection assembly IL can be installed on an installation object such as a base station CS in a loose fit manner. In this way, it can not only avoid large relative movement of the liquid injection assembly IL relative to the installation object, but also does not interfere with small relative movement of the liquid injection assembly IL relative to the installation object for fine adjustment.

[0054] In this embodiment, as Figure 1 and Figure 4 shown, the elastic mounting portion 2 is formed with a first mounting hole 4h, and the first axial portion 111 of the cylindrical body 11 is inserted through the first mounting hole 4h, whereby the elastic mounting portion 2 is mounted on the first axial portion 111 in a manner of sleeving on the outer periphery of the cylindrical body 11. The axial two end portions of the elastic mounting portion 2 are respectively formed into tapered shapes, and the outer peripheral surface of the central portion of the elastic mounting portion 2 located between its axial two end portions is formed into an annular mounting surface 2s, and the annular mounting surface 2s continuously extends in the circumferential direction of the elastic mounting portion 2 over the entire circumference. By using the annular mounting surface 2s that continuously extends over the entire circumference, in a state where the annular mounting surface 2s is in contact with the housing 4 of the base station CS, the liquid injection assembly IL is stably supported on an installation object such as a base station CS via the elastic mounting portion 2.

[0055] In this embodiment, as Figure 1 and Figure 4As shown, the sealing portion 3 is formed with a second mounting hole 4h, and the second axial portion 112 of the cylindrical body 11 is inserted through the second mounting hole 4h, whereby the sealing portion 3 is mounted on the second axial portion 112 in such a manner as to surround the outer periphery of the cylindrical body 11. The sealing portion 3 is positioned at an end face position closer to the axial one end of the cylindrical body 11 than the elastic mounting portion 2, that is to say, the sealing portion 3 is positioned closer to the opening formed in this end face of the liquid injection flow path 1p than the elastic mounting portion 2. Further, the sealing portion 3 includes an annular base body 31 and three sealing lips 32. The annular base body 31 is sleeved on the second axial portion 112 of the cylindrical body 11, and the three sealing lips 32 are arranged at intervals in the axial direction of the annular base body 31. Each sealing lip 32 protrudes from the annular base body 31 toward the radially outer side to the radially outer side of the cylindrical body 11, that is to say, the outer diameter of the sealing lip 32 is larger than the maximum outer diameter of the cylindrical body 11. In addition, each sealing lip 32 also continuously extends in the circumferential direction of the annular base body 31 over the entire circumference. The use of the annular base body 31 is conducive to stably mounting the sealing portion 3 on the cylindrical body 11. In a state where the liquid injection assembly IL is inserted into the above-mentioned liquid inlet passage 5p, the three sealing lips 32 can contact the inner peripheral wall of the liquid injection passage to achieve effective sealing. It can be understood that in other alternative solutions, the number of the sealing lips 32 can be adjusted as required and does not necessarily have to be three as described in the above embodiments.

[0056] Thus, in a state where the liquid injection assembly IL described in the above embodiments is mounted on an object to be mounted, such as a base station CS, referring to Figure 4 , the liquid injection assembly IL can be mounted on the housing 4 of the base station CS via the elastic mounting portion 2. Thereby, the liquid injection assembly IL can perform a small relative movement with respect to the housing 4 by virtue of the elasticity of the elastic mounting portion 2 itself, which is conducive to the liquid injection assembly IL being inserted into the liquid inlet passage 5p of an object to be liquid-injected, such as a self-moving cleaning device AM. In addition, in a state where the liquid injection assembly IL is inserted into the above-mentioned liquid inlet passage 5p, the sealing portion 3 can contact the inner peripheral wall of the liquid inlet passage 5p to achieve sealing, thereby preventing the liquid from the liquid injection flow path 1p from leaking out through the gap between the liquid injection nozzle 1 and the inner peripheral wall of the liquid inlet passage 5p.

[0057] The following describes the base station CS according to the embodiments of the present disclosure in conjunction with the accompanying drawings of the specification.

[0058] As Figure 2 and Figure 3 shown, the base station CS according to the embodiments of the present disclosure really includes a housing 4 and the liquid injection assembly IL described in the above embodiments. Specifically, as Figure 4As shown, the housing 4 is formed with a through mounting hole 4h. The cylindrical body 11 of the liquid injection nozzle 1 of the liquid injection assembly IL is inserted through the mounting hole 4h. The elastic mounting portion 2 of the liquid injection assembly IL is located in the mounting hole 4h and is in shape fit with the mounting hole 4h. One axial end portion of the cylindrical body 11 of the liquid injection nozzle 1 extends out of the housing 4. In addition, the connection joint 12 of the liquid injection nozzle 1 is connected to the liquid supply system, so that the cleaning liquid from the liquid supply system can enter the liquid injection flow path 1p of the liquid injection nozzle 1 through the opening of the connection joint 12 and then flow out from the opening of the cylindrical body 11.

[0059] The base station CS is a typical application scenario of the liquid injection assembly IL of the present disclosure. In the base station CS according to the present disclosure, the liquid injection assembly IL can be mounted on the housing 4 of the base station CS via the elastic mounting portion 2. Thus, the liquid injection assembly IL can perform a small relative movement with respect to the housing 4 by virtue of the elasticity of the elastic mounting portion 2 itself, which is beneficial for the liquid injection assembly IL to be inserted into, for example, the liquid inlet passage 5p of the liquid injection device of the self-moving cleaning device AM.

[0060] The self-moving cleaning device AM according to an embodiment of the present disclosure will be described below in conjunction with the accompanying drawings of the specification. The self-moving cleaning device AM is used in cooperation with the above-mentioned base station CS.

[0061] As Figure 5 shown, the self-moving cleaning device AM has a main body portion 5. The main body portion 5 has an overall circular shape in a top view. In other variant examples, the main body portion 5 may have various shapes such as a D shape, an oval shape, a square shape, etc. as a whole. When the autonomous mobile device is in a normal operating state, the bottom surface of the main body portion 5 faces the surface to be cleaned, and the bottom surface of the main body portion 5 is usually parallel to the surface to be cleaned. Here, "parallel" not only includes the geometric parallel relationship between the bottom surface of the main body portion 5 and the surface to be cleaned, but also includes the case where the two are approximately parallel. The above "approximately" means that within the reasonable error range recognized by those skilled in the art, the parallel relationship between the two can be determined to be established. In addition, for supporting and protecting other components, other components of the autonomous mobile device are usually installed inside the main body portion 5 or have a connection relationship with the main body portion 5.

[0062] As Figure 6 and Figure 7As shown, within the main body portion 5 of the self - moving cleaning device AM, there is a receiving space 5c for receiving cleaning liquid and a liquid inlet passage 5p communicating with the receiving space 5c. The liquid inlet passage 5p has an opening formed on the side wall of the main body portion 5. In a state where the self - moving cleaning device AM is docked at the base station CS, the liquid injection nozzle 1 of the liquid injection assembly IL is inserted into the liquid inlet passage 5p through the opening of the liquid inlet passage 5p, and the sealing portion 3 of the liquid injection assembly IL and the inner peripheral surface of the liquid inlet passage 5p are in contact with each other to achieve sealing. To facilitate the insertion of the liquid injection assembly IL into the liquid inlet passage 5p, a part of the liquid inlet passage 5p near the opening is formed in a shape that gradually expands towards the opening, so as to be able to compensate for the deviation between the cylindrical body 11 of the liquid injection assembly IL and the opening of the liquid inlet passage 5p before insertion. In addition, the self - moving cleaning device AM further includes a one - way valve 6, and the one - way valve 6 can be a so - called duck - bill valve. The one - way valve 6 is installed in the liquid inlet passage 5p, and the one - way valve 6 enables the cleaning liquid to be injected into the receiving space 5c unidirectionally through the liquid inlet passage 5p. By providing the one - way valve 6, it is prevented that the cleaning liquid flows out reversely from the receiving space 5c through the liquid inlet passage 5p, and the cleaning liquid inside the receiving space 5c cannot flow out through the liquid inlet passage 5p.

[0063] It should be understood that the above - mentioned embodiments are merely exemplary and are not used to limit the present disclosure. Those skilled in the art can make various modifications and changes to the above - mentioned embodiments under the teaching of the present disclosure without departing from the scope of the present disclosure. The following supplementary explanations are made for the technical solutions of the present disclosure.

[0064] i. In the above - mentioned specific implementation manners, it is described that the liquid injection assembly IL according to the present disclosure can be installed on the base station CS, which is used for the self - moving cleaning device AM to dock for replenishing cleaning liquid, but the present disclosure is not limited thereto. For example, in other fields, there are scenarios where it is necessary to inject liquid using the liquid injection assembly IL according to the present disclosure, and the technical solutions according to the present disclosure can be adopted.

[0065] ii. It can be understood that in the present disclosure, the self - moving cleaning device AM can move autonomously according to the control scheme preset in its processing unit. The surface to be cleaned where the self - moving cleaning device AM moves autonomously can be a flat surface or a curved surface with a relatively large radius of curvature. Typically, for example, it is the floor in each room of a building. The processing unit in the present disclosure is a general term, and there are no restrictions on the type, quantity, and form of the processing unit. Specifically, the processing unit can be one or several of MCU, DSP, FPGA, GPU, or other various hardware chips, processors, or software algorithms with data processing and computing capabilities. Further, the processing unit can be the unified and unique processor of the self - moving cleaning device AM, or a collection of multiple processing units. The connection method, functions, and computing power distribution of multiple processing units can be adjusted as needed. For example, in an alternative solution, it can include a first processing unit and a second processing unit. In this case, the first processing unit and the second processing unit together implement various functions of the above - mentioned processing unit. In addition, the processing unit of the self - moving cleaning device AM according to the present disclosure can receive parameters from the sensing component and can control the self - moving cleaning device AM through a preset program stored in the storage unit. In the present disclosure, the data, information, and programs required by the processing unit during the processing can be stored in the storage unit and retrieved from the storage unit as needed. The processing unit can store the processed data, information, etc. in the storage unit again. The storage unit can be RAM, ROM, etc., or devices and / or equipment with storage functions such as cloud / servers / mobile terminals connected through wired / wireless networks.

[0066] In addition, in order to achieve autonomous movement of the self - moving cleaning device AM, the self - moving cleaning device AM according to the present disclosure may further include a wheel assembly. The wheel assembly can be mounted on the main body 5 and protrude relative to the bottom surface of the main body 5, and is used to drive the entire self - moving cleaning device AM to travel on the surface to be cleaned under the control of the processing unit. By rotating the wheels (drive wheels) of the two wheel assemblies at the same speed in the same direction (for example, rotating clockwise simultaneously or counter - rotating counter - clockwise simultaneously), the self - moving cleaning device AM can be driven to move in a straight line along the forward moving direction; by rotating the drive wheels of the two wheel assemblies at different speeds and / or in different directions (for example, one drive wheel rotates clockwise while the other drive wheel rotates counter - clockwise), the self - moving cleaning device AM can be driven to perform a steering movement along a direction different from the forward moving direction. The self - moving cleaning device AM may further include a caster wheel provided on the main body 5, so that the caster wheel can support the entire self - moving cleaning device AM regardless of how the drive wheels roll on the surface to be cleaned. In the case where the self - moving cleaning device AM according to the present disclosure is a self - moving cleaning device AM, the self - moving cleaning device AM may further include a dry cleaning assembly and a wet cleaning assembly. The dry cleaning assembly is provided on the main body 5 and may include a main brush, a side brush (edge brush), a suction device, etc. The wet cleaning assembly is provided on the main body 5 and may include a rag (mop) and a water tank, etc. Thus, when the self - moving cleaning device AM is traveling on the surface to be cleaned, the surface to be cleaned can be cleaned through the dry cleaning assembly and / or the wet cleaning assembly. In different working modes, the cleaning operations achieved by the self - moving cleaning device AM include, but are not limited to, one or more of operations such as sweeping the floor, mopping the floor, vacuuming, etc.

[0067] iii. It can be understood that in the present disclosure, the base station CS can be fixedly arranged at any appropriate position on the surface to be cleaned. By using the signal generator of the base station CS and the receiver provided on the self - moving cleaning device AM, the self - moving cleaning device AM can dock with the base station CS to replenish cleaning liquid and charge according to a preset program. Typically, the base station CS can be a charging stand or a charging pile with a liquid supply system.

Claims

1. A liquid injection assembly, characterized in that, Comprising: A liquid injection nozzle, inside which a liquid injection flow channel for liquid flow is formed. The liquid injection nozzle includes a cylindrical body, and an opening facing outward is formed at an end face of an axial end of the cylindrical body in the axial direction of the liquid injection flow channel. An elastic mounting portion, which is mounted on the cylindrical body in a manner of sleeving on the outer periphery of the cylindrical body. And A sealing portion, which is mounted on the cylindrical body in a manner of sleeving on the outer periphery of the cylindrical body, and the sealing portion is positioned at a position closer to the opening than the elastic mounting portion.

2. The liquid injection assembly according to claim 1, characterized in that, The elastic mounting portion forms a first mounting hole and the sealing portion forms a second mounting hole. The cylindrical body includes: A first axial portion, which is inserted into the first mounting hole so that the elastic mounting portion is mounted on the first axial portion. A second axial portion, which is inserted into the second mounting hole so that the sealing portion is mounted on the second axial portion; and A third axial portion, whose outer diameter is larger than the outer diameter of the first axial portion and larger than the outer diameter of the second axial portion, and the third axial portion is located between the first axial portion and the second axial portion in the axial direction of the cylindrical body.

3. The liquid injection assembly according to claim 2, wherein, The cylindrical body further includes a guiding portion, which includes a cylindrical portion and a tapered portion. The second axial portion is located between the third axial portion and the cylindrical portion in the axial direction. The outer diameter of the cylindrical portion remains constant all the time, and the outer diameter of the tapered portion gradually decreases from the cylindrical portion towards the end face of the axial end portion.

4. The liquid injection assembly according to claim 1, characterized in that, The liquid injection nozzle further includes a connection joint, which is fixedly connected to the axial other end portion of the cylindrical body, and the connection joint extends along the radial direction of the cylindrical body. The liquid injection flow channel extends from the cylindrical body to the connection joint and an opening is formed at a radially outer end portion of the connection joint.

5. The liquid injection assembly according to claim 4, wherein, The liquid injection assembly further includes a bracket, which is fixedly connected to the axial other end portion of the cylindrical body and is arranged at an interval from the connection joint. The bracket forms a through hole for a connecting member to be inserted.

6. The liquid injection assembly according to any one of claims 1 to 5, characterized in that, The outer peripheral surface of the elastic mounting portion is formed as an annular mounting surface, and the annular mounting surface continuously extends in the circumferential direction of the elastic mounting portion over the entire circumference.

7. The liquid injection assembly according to any one of claims 1 to 5, characterized in that, The sealing portion includes an annular base body and a plurality of sealing lips. The annular base body is mounted on the cylindrical body, and the plurality of sealing lips are arranged at intervals in the axial direction of the annular base body. Each sealing lip protrudes from the annular base body towards the radially outer side to the radially outer side of the cylindrical body.

8. A base station, characterized in that, Including A housing, which forms a mounting hole; and The liquid injection assembly according to any one of claims 1 to 7, the liquid injection nozzle of the liquid injection assembly is inserted through the mounting hole, the elastic mounting portion of the liquid injection assembly is located in the mounting hole and is in shape fit with the mounting hole, and an axial end portion of the liquid injection nozzle extends out of the housing.

9. A self - moving cleaning device, characterized in that, The self - moving cleaning device can cooperate with the base station according to claim 8. The self - moving cleaning device is formed with a receiving space for receiving a cleaning liquid and a liquid inlet passage communicating with the receiving space. In a state where the self - moving cleaning device is docked to the base station, the liquid injection assembly is inserted into the liquid inlet passage, and a sealing portion of the liquid injection assembly and an inner peripheral surface of the liquid inlet passage are in contact with each other to achieve sealing.

10. The self - moving cleaning device according to claim 9, wherein, It further includes a one - way valve, and the one - way valve is installed in the liquid inlet passage. By using the one - way valve, the cleaning liquid can be injected into the receiving space unidirectionally via the liquid inlet passage.

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