Dust box, dust box unit, and cleaning device

Abstract

This application discloses a dust box, a dust box unit, and a cleaning device, where the dust box unit includes a dust box and at least two fans. The dust box is formed with a storage chamber, a dust suction port, and at least two air outlets, the dust suction port communicating with the storage chamber, and the at least two air outlets communicating with the storage chamber. The at least two fans are provided corresponding to the at least two air outlets and are used to generate airflow that sequentially passes through the dust suction port, the storage chamber, and the air outlets. According to the above aspects, this application can improve the cleaning effect.

Description

[Technical field]

[0001] The present application relates to the technical field of cleaning devices, and in particular to a dust box, a dust box unit, and a cleaning device. [Background technology]

[0002] With the improvement of people's living standards and the rapid development of smart device technology, smart cleaning devices, such as cleaning robots, dust removers, dust collectors, etc., are popular in both work and life. And with the emergence of Internet of Things technology, everything becomes related, and the market for smart cleaning devices becomes wider.

[0003] With today's smart cleaning devices, there is room for improvement in both cleaning efficiency and effectiveness. Summary of the Invention [Problem to be solved by the invention]

[0004] The main technical problem to be solved by the present application is to provide a dust box, a dust box unit, and a cleaning device that can effectively improve the cleaning effect. [Means for solving the problem]

[0005] In order to solve the above technical problems, one technical solution adopted by this application is to provide a dust box unit including a dust box and at least two fans. The dust box is formed with a storage chamber, a dust suction port and at least two air outlets, the dust suction port communicates with the storage chamber, and the at least two air outlets communicate with the storage chamber. The at least two fans are provided corresponding to the at least two air outlets, and are used to exhaust air through the air outlets to form an airflow that passes through the dust suction port, the storage chamber and the air outlets in sequence.

[0006] In order to solve the above technical problems, another technical solution adopted by the present application is to provide a dust box, in which the dust box is formed with a storage chamber, a dust suction port and at least two air outlets, the dust suction port is connected to the storage chamber, each of the at least two air outlets is connected to the storage chamber, and each air outlet is connected to a fan, so that the fan draws air through the air outlets to form an airflow that passes through the dust suction port, the storage chamber and the air outlets in sequence.

[0007] In order to solve the above technical problems, another technical solution adopted by the present application is to provide a cleaning device, which includes a device body and the above dust box unit, and the dust box unit is mounted on the device body. Effect of the Invention

[0008] Compared with the prior art, the beneficial effects of the present application are as follows: by making at least two fans correspond to at least two air outlets, each fan can communicate with the air outlet to suck air, the at least two fans form at least two ducts inside the dust box when working, and at least two air flows can work synergistically and cooperate, so as to quickly improve the suction force of air, quickly exhaust the air in the storage chamber, and the dust suction port generates a stronger suction force to suck in things such as dust, and compared with the design of a single fan and a single duct, the present embodiment can suck in larger particles of foreign matter and a larger mass of dust, and effectively improve the cleaning effect. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a structural schematic diagram of an embodiment of a dust box unit of the present application. [Diagram 2] FIG. 2 is an exploded schematic diagram of the structure of an embodiment of the dust box unit of the present application. [Diagram 3] 2 is a structural schematic diagram of the AA cross section of an embodiment of the dust box unit of the present application. FIG. [Figure 4]FIG. 2 is another exploded schematic view of the structure of the embodiment of the dust box unit of the present application. [Diagram 5] FIG. 13 is an exploded schematic view of another structure of the embodiment of the dust box unit of the present application. [Figure 6] FIG. 13 is a partial structural schematic diagram of another structure of the embodiment of the dust box unit of the present application. [Figure 7] FIG. 13 is an exploded schematic diagram of a further structure of an embodiment of the dust box unit of the present application. [Figure 8] FIG. 13 is another exploded schematic view of a further structure of an embodiment of the dust box unit of the present application. [Figure 9] FIG. 2 is a partial structural schematic diagram of a further structure of an embodiment of the dust box unit of the present application. [Figure 10] FIG. 13 is a schematic diagram showing the location of communication holes in a further structure of an embodiment of the dust box unit of the present application. [Figure 11] FIG. 13 is another schematic diagram showing the position of the communication hole in a further structure of an embodiment of the dust box unit of the present application. [Figure 12] FIG. 2 is a structural schematic diagram of a connecting member of an embodiment of the dust box unit of the present application. [Figure 13] FIG. 11 is another structural schematic diagram of the connecting member of the embodiment of the dust box unit of the present application. [Figure 14] FIG. 2 is a structural schematic diagram of an embodiment of a cleaning device of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the technical solutions of the embodiments of the present application will be described clearly and completely with reference to the drawings of the embodiments of the present application, but obviously, the described embodiments are only a part of the embodiments of the present application, and are not all of the embodiments. All other embodiments that a person skilled in the art can obtain based on the embodiments of the present application without requiring creative efforts belong to the patent scope of the present application.

[0011] After a long period of research, the inventors discovered that cleaning devices such as dust suction devices and cleaning robots use negative pressure to suck up miscellaneous objects, dirt, dust, etc. In order to obtain a large negative pressure or suction force, the industry generally increases the volume of the fan or the number of revolutions of the fan, but on the other hand, this increases noise, and increasing the number of revolutions of the fan shortens the life of the fan, and there is a limit to how much suction force can be improved by increasing the number of revolutions of the fan. In order to solve the above technical problems, the inventors of the present application have proposed the following embodiment after a long period of research, development, and testing.

[0012] Referring to FIG. 1, a dust box unit 1 according to an embodiment of the dust box unit of the present application may include a dust box 10, a fan 21, and the like.

[0013] Referring to FIG. 2, the dust box 10 can suck up garbage such as miscellaneous objects and dust to be sucked. The dust box 10 has a storage chamber 100, and specifically, the storage chamber 100 stores garbage such as miscellaneous objects and dust to be sucked. The dust box 10 also has a dust suction port 110 communicating with the storage chamber 100. The garbage enters the storage chamber 100 through the dust suction port 110. The dust box 10 may further have at least one air outlet 120. For example, the dust box 10 may further have at least two air outlets 120, and the at least two air outlets 120 are all communicating with the storage chamber 100. The garbage enters the storage chamber 100 through the dust suction port 110 together with the air, and the air flows out from the air outlet 120. In this way, the dust suction port 110, the storage chamber 100, and the air outlet 120 form a passage through which the air flows by the action of the fan 21. The dust box 10 may further have at least two communication holes 1211 spaced apart from each other, and the storage chamber 100 communicates with the air outlet 120 via the at least two communication holes 1211 .

[0014] There is at least one fan 21, and it corresponds to at least one air outlet 120. That is, at least two fans 21 are provided corresponding to at least two air outlets 120, and the fans 21 and the air outlets 120 may have a one-to-one correspondence. The fan 21 mainly sucks air from the air outlet 120, and forms an airflow from the dust suction port 110 to the air outlet 120. The installation positions and specific structures of the fan 21 and the air outlet 120 are not limited to the examples shown in Figs. 1 and 2.

[0015] As shown in FIG. 1 and FIG. 2, the dust box unit 1 may further include a connecting member 22 because the fan 21 and the air outlet 120 cooperate well, and because of the connection between the two and compatibility with the structure of the dust box 10 and the like. The number of connecting members 22 may be at least two. The fan 21, the connecting member 22 and the air outlet 120 may correspond one-to-one. The fan 21 may be connected to the corresponding connecting member 22 and communicate with the corresponding air outlet 120 through the corresponding connecting member 22. The fan 21 may communicate with the corresponding air outlet 120 through the corresponding connecting member 22, that is, the air in the storage chamber 100 may be sucked from the air outlet 120 through the connecting member 22. One connecting member 22 and one fan 21 may be one dust suction unit 20. In the dust box unit 1 of this embodiment, a plurality of air outlets 120 may be provided, and in this case, a plurality of dust suction units 20 are provided.

[0016] At least two fans 21 are provided corresponding to at least two air outlets 120, and each fan 21 is connected to an air outlet 120. When the at least two fans 21 are operating, they form at least two ducts inside the dust box 10, allowing the at least two airflows to work synergistically and cooperate, thereby quickly improving the air suction force, more quickly discharging the air in the storage chamber 100, and the dust suction port 110 generates a greater suction force to suck in the dust. Compared with the design of a single fan 21 and a single duct, this embodiment can suck in larger particles of impurities and a larger mass of dust, and effectively improve the cleaning effect.

[0017] Furthermore, the connecting member 22 works in conjunction with the fan 21 to communicate with the air outlet 120, making it easier to install the fan 21 and to arrange and design the structure of the entire unit. By providing the connecting member 22, the duct becomes longer and the airflow speed becomes faster, further improving the suction power and cleaning effect of the dust suction port 110.

[0018] 2 and 3, the dust box 10 may further include a passage cavity 101. The passage cavity 101 and the storage chamber 100 are adjacent to each other in the thickness direction of the dust box 10, and the passage cavity 101 communicates with the storage chamber 100. The passage cavity 101 communicates with the air outlet 120. Here, due to the suction action of the fan 21, the passage cavity 101 is located downstream of the storage chamber 100 in the airflow. That is, when the fan 21 performs the suction operation, the airflow enters the storage chamber 100 from the dust suction port 110, then enters the storage chamber 100 into the passage cavity 101, and finally passes through the connecting member 22 and the fan 21 to be discharged, and the passage cavity 101 is located downstream of the storage chamber 100 in the flow direction of the airflow.

[0019] The passage cavity 101 communicates with the air outlet 120, thereby increasing the available space in the dust box 10. This is more convenient for the layout and design of the air outlets 120, and is more convenient for the installation of the fans 21 and the connecting members 22, thereby forming multiple ducts, and the fans 21 do not directly suck the air in the storage chamber 100, but suck it through the passage cavity 101, which is more convenient for preventing the accumulation of dust in the storage chamber 100, and further enhances the suction force of the air and the cleaning effect.

[0020] As shown in Fig. 2 and Fig. 3, for example, when the number of the air outlets 120 is two, the two air outlets 120 are on both opposing sides of the dust box 10. For example, the arrangement direction of the two air outlets 120 may be perpendicular to the thickness direction of the dust box 10 and approximately coincide with the length direction of the dust suction port 110. The dust suction port 110 and the two air outlets 120 are alternately provided, and the dust suction port 110 is located between the two air outlets 120 and is not located on the same side as the two air outlets 120. The dust suction port 110 is located on two sides formed along the thickness direction of the dust box 10, that is, the connection lines between the dust suction port 110 and the two air outlets 120 surround the thickness direction of the dust box 10.

[0021] The two air outlets 120 are located on opposite sides of the dust box 10, and the dust suction port 110 is located between the two air outlets 120, so that the duct formed inside the dust box 10 is more uniform, the effective synergistic action of the two fans 21 is ensured, and noise caused by the airflow is reduced.

[0022] Referring to FIG. 4, this embodiment describes a first exemplary structure of the dust box 10, and is specifically described as follows.

[0023] The dust box 10 may include a first case 11, a second case 12, and a cover 13. One side of the second case 12 is provided to cover the first case 11, and a storage chamber 100 is formed therein. A groove 1210 is formed on the other side of the second case 12, and the cover 13 is provided to cover the other side of the second case 12, and a passage cavity 101 is formed therein. In other words, the thickness direction of the dust box 10 may be from the first case 11 to the cover 13 and the opposite direction. The storage chamber 100 and the passage cavity 101 may be provided adjacent to each other by being separated by the second case 12.

[0024] The first case 11 may be, for example, a tank type, and may include, for example, a bottom wall 111 and side walls 112 that are provided around the bottom wall 111, and the bottom wall 111 and the side walls 112 define a tank type structure. When the second case 12 is provided to cover the first case 11, the tank type structure is covered to form the storage chamber 100. The dust suction port 110 may be provided on the side wall 112 of the first case 11. The dust box 10 may further include a dust suction part 14 that communicates with the dust suction port 110 of the first case 11, and the side of the dust suction part 14 opposite the dust suction port 110 is provided at an incline. For example, the angle between the plane of the dust suction part 14 opposite the dust suction port 110 and the plane on which the dust suction port 110 is located is greater than 0° and less than 90°, for example 45°. Of course, the dust suction port 110 may be opened in the second case 12, or a portion of the dust suction port 110 may be opened in each of the first case 11 and the second case 12, so that they jointly form the dust suction port 110 when the cases cover each other.

[0025] As shown in FIG. 4, the second case 12 includes, for example, a top wall 121 and an extension 122. The extension 122 may be connected to an edge region of the top wall 121 and extend, for example, in a direction from the top wall 121 to the first case 11. Alternatively, the second case 12 may include two extensions 122, both of which are provided opposite to each other. When the second case 12 is provided to cover the first case 11 and assembled, the top wall 121 is provided to cover the side wall 112 of the first case 11, the extension 122 is provided opposite to the side wall 112 of the first case 11, and a portion of the side wall 112 of the first case 11 is interposed between the two extensions 122.

[0026] Specifically, one side of the top wall 121 is provided to cover the side wall 112 of the first case 11, and the second case 12 and the first case 11 are combined to form the storage chamber 100. As shown in FIG. 4, a groove 1210 is formed on the other side of the top wall 121. Each extension 122 has a space communicating with the groove 1210, and the extension 122 on the opposite side to the top wall 121 becomes the air outlet 120, and the air outlet 120 communicates with the space. The cover 13 is provided to cover the other side of the top wall 121, and the cover 13 and the second case 12 are combined to form the passage cavity 101, and the air outlet 120 communicates with the passage cavity 101. Of course, the air outlet 120 may be opened in the first case 11, or in both the first case 11 and the second case 12.

[0027] Alternatively, the first case 11 and the second case 12 may be connected by engagement, for example, an engagement groove (not indicated) is provided on the periphery of one side of the top wall 121, and an engagement flange (not indicated) is provided on the periphery of the side wall 112 of the first case 11. When the first case 11 and the second case 12 are joined, the engagement flange is engaged and connected with the engagement groove, thus making the connection between the two more tight and providing a sealing effect. Of course, a seal member may be provided in the engagement groove to enhance the sealing effect. In this embodiment, the second case 12 and the cover 13 may be connected by engagement, for example, by fitting the engagement groove and the engagement flange.

[0028] 4, a communication hole 1211 may be formed in the second case 12, and the communication hole 1211 penetrates from one side of the second case 12 to the other side of the second case 12. Specifically, the communication hole 1211 may be formed in the top wall 121, and may penetrate the top wall 121 to communicate between the passage cavity 101 and the accommodation chamber 100.

[0029] The dust box unit 1 of this embodiment may include a filtration net unit, and the filtration net unit includes a first filtration net 15 and a second filtration net 16. The filtration accuracy of the second filtration net 16 is lower than that of the first filtration net 15. In other words, the second filtration net 16 can function as a coarse filtration net (primary filtration net), and the first filtration net 15 can function as a fine filtration net (high-efficiency filtration net). For example, when the first filtration net 15 and the second filtration net 16 are all in a mesh form, the mesh size of the second filtration net 16 may be larger than that of the first filtration net 15. For example, the second filtration net 16 may have 4 meshes, and the first filtration net 15 may have 100 meshes, and the size of the entire second filtration net 16 and the size of the entire first filtration net 15 are both equal to the size of the communication hole 1211, and thus the size of the mesh of the second filtration net 16 is larger than that of the first filtration net 15. Of course, as shown in Figs. 2 and 3, the first filtration net 15 may be a folded filtration net, and the filter elements of the first filtration net 15 are, for example, in a continuous Z-fold shape.

[0030] The second filter net 16 and the first filter net 15 may be provided in the second case 12 and sequentially cover the communication hole 1211. Specifically, in the second case 12, a "cross"-shaped holder is provided in the communication hole 1211, and of course, other shapes (see FIG. 4, no reference numerals are attached) may be used. The holder places the second filter net 16 and the first filter net 15, and both can be more stably arranged in the second case 12. Due to the suction action of the fan 21, items such as dust and other miscellaneous objects enter the storage chamber 100 from the dust suction port 110 together with the airflow, and due to the double filtration action of the second filter net 16 and the first filter net 15, the airflow is sequentially filtered by the second filter net 16 and the first filter net 15, and the dust and other miscellaneous objects are left in the storage chamber 100, and the filtered air enters the passage cavity 101 and is discharged from the air outlet 120.

[0031] The combination of the first case 11, the second case 12 and the cover 13 improves the structural stability of the dust box 10 and makes it easier to attach and detach, which is advantageous for cleaning out garbage and maintaining the dust box 10. Moreover, the combined structure of the dust box 10 allows the first case 11 and the second case 12 to be easily fitted together to form the storage chamber 100, and the second case 12 and the cover 13 to be fitted together to form the passage cavity 101, which allows the storage chamber 100 to better accommodate miscellaneous objects and garbage, and the passage cavity 101 to more quickly exhaust the air within the storage chamber 100 and increase the airflow speed.

[0032] Furthermore, a multi-stage filtration system is provided, and multiple filtration is performed on the airflow by the second filtration net 16 and the first filtration net 15, and debris such as foreign matter and dust is effectively filtered and stored in the storage chamber 100, thereby achieving a cleaning effect. Of course, the number of communication holes 1211 may be multiple, and in this embodiment, one example is shown below.

[0033] As shown in FIG. 3, the cover 13 is provided to cover the second case 12 and is fitted with the second case 12 to form a passage cavity 101. In this embodiment, the cover 13 and the second case 12 are fitted together by being sealed with a seal member (see FIG. 4, no reference numeral) whose shape matches the outer shape of both. As shown in FIG. 4, the cover 13 may include a cover body 131 and a filter net cover 132. The cover body 131 has an attachment hole 130 formed at a position corresponding to the first filter net 15, and the attachment hole 130 communicates with the passage cavity 101. When the cover body 131 is provided to cover the side wall 112 of the first case 11, the first filter net 15 and the second filter net 16 can be exposed. Optionally, the filter net cover 132 is rotatably connected to the cover body 131. For example, one side of the filtration screen cover 132 is rotatably attached to the cover body 131 via a rotation shaft to form an inner wall of the mounting hole 130. The filtration screen cover 132 can rotate to cover the mounting hole 130 or open the mounting hole 130 to expose the first filtration screen 15 and the second filtration screen 16. Optionally, the size of the mounting hole 130 is equal to or larger than the size of the communication hole 1211. Of course, in another embodiment, the size of the mounting hole 130 may be smaller than the size of the communication hole 1211.

[0034] Furthermore, the filtration mesh top cover 132 may be fitted into the mounting hole 130 by a sealing member (see Figure 4, no symbol) that fits the shape of the mounting hole 130 in order to enhance the sealing effect of the dust box 10 and ensure the suction force of the dust suction port 110 and effective flow of the internal airflow of the dust box 10.

[0035] By providing a rotatable filter mesh top cover 132 that fits into the mounting hole 130, the second filter mesh 16 and the first filter mesh 15 can be easily removed and cleaned, and further, by providing the mounting hole 130, the inside of the dust box 10 can be easily observed, which is advantageous for inspection and repair.

[0036] In contrast to the first exemplary structure of the dust box 10, the dust box 10 may further be provided with a snap unit 30 so that the dust box 10 can be snap-connected to another device. An example of the snap unit 30 of the dust box unit 1 will be specifically described below.

[0037] 4, the snap unit 30 can be snap-connected to another device, allowing the dust box unit 1 to be used in combination with the other device, such as the main body of a cleaning device.

[0038] Specifically, the snap unit 30 may include a pressing portion 31, an elastic portion 33, and a snap rod 32. The pressing portion 31 is connected to the snap rod 32. For example, the snap rod 32 may be the whole, and the pressing portion 31 is connected to a central region between both ends of the snap rod 32. A snap portion 321 is protruded from each end of the snap rod 32. Of course, as shown in FIG. 4, there may be two snap rods 32, each connected to opposite sides of the pressing portion 31, and each snap rod 32 has one end connected to the pressing portion 31 and the other end extending in a direction away from the pressing portion 31 and provided with a snap portion 321. When the dust box unit 1 of this embodiment is snap-fitted with another device, for example, a snap groove is provided in the other device, and the snap portion 321 is snap-connected to the corresponding snap groove.

[0039] The elastic portion 33 elastically supports the pressing portion 31. The pressing portion 31 is elastically supported by the dust box 10 via the elastic portion 33. As shown in FIG. 4, the first case 11 has a first arrangement groove 1110, which corresponds to the cutout portion 1213 of the second case 12, and the first arrangement groove 1110 is in the same direction as the extension direction of the side wall 112 of the first case 11, and the first arrangement groove 1110 may use a part of the side wall 112 as its tank wall, that is, the opening direction of the first arrangement groove 1110 faces the cover 13. The pressing portion 31 has a second positioning groove 310, the extension direction of the second positioning groove 310 being opposite or substantially opposite to the protruding direction of the snap portion 321, and the elastic portion 33 may be a spring, one end of which may enter and be supported within the first positioning groove 1110 and the other end of which may be exposed outside the first positioning groove 1110. The other end of the elastic portion 33 is supported within the second positioning groove 310. The second positioning groove 310 may be sized to accommodate the pressing portion 31 such that a portion of the pressing portion 31 can be accommodated in the second positioning groove 310 when the pressing portion 31 is pressed.

[0040] 4, a rod accommodating groove 1212 spaced from the recessed groove 1210 may be further formed on the other side of the second case 12. The snap rod 32 may be accommodated in the rod accommodating groove 1212. When the snap rod 32 is accommodated in the rod accommodating groove 1212, a position in the second case 12 corresponding to the pressing portion 31 becomes a notch 1213. When the snap rod 32 is accommodated in the rod accommodating groove 1212, the snap portion 321 extends toward the cover 13.

[0041] In this embodiment, when the second case 12 and the cover 13 are joined, the rod receiving groove 1212 and the passage cavity 101 may be isolated from each other without communicating with each other in order to ensure the suction force of the dust suction port 110 and effectively suck up dust. In the cover body 131, a snap hole (not indicated with a symbol) is opened at a position corresponding to the snap portion 321. When the pressing portion 31 is not pressed, the elastic portion 33 is elastically supported between the first arrangement groove 1110 and the second arrangement groove 310, the snap rod 32 is butted against the snap portion 321, and the snap portion 321 protrudes from the snap hole for snap connection when assembling with another device. When the pressing portion 31 is pressed, the elastic portion 33 is further elastically compressed, and the pressing portion 31 moves to the bottom wall 111, for example, into the first arrangement groove 1110, and the snap rod 32 moves away from the cover 13 in conjunction with the movement, and the snap portion 321 no longer protrudes from the snap hole of the cover 13, and is disengaged. The snap rod 32 is restricted by the rod receiving groove 1212 and can move further by reducing the pressure of the pressing portion 31.

[0042] Of course, both the first positioning groove 1110 and the second positioning groove 310 may be provided with positioning posts (not shown) to position and fix the elastic part 33, for example, both ends of the spring are respectively mounted on the positioning posts.

[0043] 5 and 6, in this embodiment, a second exemplary structure of the dust box 10 may be described, which is specifically described as follows.

[0044] The first case 11a may be provided in a plate shape. The second case 12a includes a top wall 121a and a side wall 122a provided around the outer periphery of the top wall 121a. A part of the side wall 122a extends from the top wall 121a to the first case 11a, and the part of the top wall 121a and the side wall 122a forms a tank-type structure. Another part of the side wall 122a extends from the top wall 121a to the cover 13a. When the second case 12a is provided so as to cover the first case 11a, the top wall 121a, the side wall 122a and the bottom wall 111a form the storage chamber 100. The first case 11a and the second case 12a can be sealed and joined by an appropriate sealing member.

[0045] The dust suction port 110 is opened in the side wall 122a of the second case 12a. The dust box 10 may further include a dust suction part 14a, which may be provided in the side wall 122a of the second case 12a so as to communicate with the dust suction port 110 of the second case 12a, and the dust suction part 14a is provided at an incline on the opposite side to the dust suction port 110. For example, the included angle between the plane of the dust suction part 14a on the opposite side to the dust suction port 110 and the plane of the dust suction port 110 is greater than 0° and less than 90°, and optionally 45°. Optionally, the dust suction part 14a is provided removably in the second case 12a. Alternatively, the dust suction part 14a is rotatably provided on the second case 12a, for example, one side of the dust suction part 14a in the length direction is rotatably connected to the second case 12a (for example, rotatably connected via a rotating shaft), and the other side of the dust suction part 14a is snap-connected to the second case 12a. The length direction of the dust suction part 14a coincides or nearly coincides with the length direction of the dust suction port 110. After the dust suction part 14a and the second case 12a are disengaged, the other side of the dust suction part 14a in the length direction may rotate around the rotation axis of one side of the length direction to expose the dust suction port 110 for operations such as observation, cleaning, and repair.

[0046] A groove 1210a is defined by the top wall 121a on the side opposite to the first case 11a and another portion of the side wall 122a, and the groove 1210a and the tank-shaped structure adjacent to the first case 11a are located on both sides of the top wall 121a. The cover 13a is provided to cover the second case 12a, and the two are combined to form a passage cavity 101. The second case 12a and the cover 13a are sealed and joined together with an appropriate sealing member.

[0047] The second case 12a further includes an extension 123a, and the extension 123a is located on both opposing sides of the second case 12a. Specifically, the extension 123a has a space, and a portion of the side wall 122a of the second case 12a may be the outer wall of the extension 123a (facing the outside of the dust box 10), or may be the inner wall of the extension 123a. When the first case 11a and the second case 12a are joined, the space of the extension 123a does not directly communicate with the storage chamber 100, but communicates with the passage cavity 101. An air outlet 120 is opened in the extension 123a, and the air outlet 120 is opened, for example, in the outer wall of the extension 123a, and the air outlet 120 is opened, for example, in the portion of the side wall 122a that functions as the outer wall of the extension 123a, and communicates with the space of the extension 123a.

[0048] A communication hole 1211a may be formed in the second case 12a, and the communication hole 1211a may penetrate the top wall 121a. In this embodiment, the communication hole 1211a may be multiple and may be, for example, circular, elliptical, or rectangular. The communication hole 1211a communicates between the passage cavity 101 and the accommodation chamber 100.

[0049] The filtration net unit includes a first filtration net 15a and a second filtration net 16a. The filtration accuracy of the second filtration net 16a is lower than that of the first filtration net 15a. In other words, the second filtration net 16a can function as a coarse filtration net (primary filtration net), and the first filtration net 15a can function as a fine filtration net (high-efficiency filtration net). For example, when the second filtration net 16a and the first filtration net 15a are all mesh-shaped, the mesh size of the second filtration net 16a may be larger than that of the first filtration net 15a. For example, the second filtration net 16a may have four meshes, and the first filtration net 15a may have 100 meshes, and the entire size of the second filtration net 16a and the entire size of the first filtration net 15a are both equal to the communication hole 1211a, that is, the mesh size of the second filtration net 16a is larger than that of the first filtration net 15a. Of course, as shown in FIG. 5, the mesh surface of the first filtration net 15a may be a folded filtration net.

[0050] The second filter net 16a is provided in the second case 12a and may be located inside the communication hole 1211a, or may be located outside the communication hole 1211a and cover the communication hole 1211a. The second filter net 16a may cover a plurality of communication holes 1211a as a whole. There may be a plurality of second filter nets 16a, each corresponding to each communication hole 1211a. The first filter net 15a may be provided in the space of the extension portion 123a to cover the air outlet 120 and filter the airflow flowing out from the air outlet 120. For example, there are at least two second filter nets 16a, each corresponding to at least two air outlets 120, that is, one second filter net 16a is provided corresponding to each air outlet 120.

[0051] By providing the first filtration net 15a corresponding to at least two air outlets 120, a filtration system consisting of a plurality of highly efficient filtration nets is formed, and each of the plurality of first filtration nets 15a filters the airflow passing through at least two air outlets 120, thereby improving the filtering effect and filtering efficiency and further increasing the speed of the airflow. Furthermore, by providing a plurality of communication holes 1211a, the area through which the airflow passes is increased, and the problem of dust such as miscellaneous matter accumulating in the storage chamber 100 and causing airflow blockage is avoided.

[0052] In the above-mentioned second exemplary structure of the dust box 10, a snap unit 30 having the same structure as that of the first exemplary structure of the dust box 10 may be used. Of course, in the second specific exemplary structure of the dust box 10, a snap unit 30 having a structure different from that of the first exemplary structure of the dust box 10 may also be provided, and another example of the snap unit 30 will be specifically described below.

[0053] As shown in Figs. 5 and 6, the snap unit 30 may include a pressing portion 31a, a snap rod 32a, and an elastic portion 33a, and the pressing portion 31a is connected to the snap rod 32a. For example, the snap rod 32a may be the whole, and for example, the pressing portion 31a is connected to a central region between both ends of the snap rod 32a. A snap portion 321a is protruded from each end of the snap rod 32a. Of course, as shown in Fig. 5, there may be two snap rods 32a, each connected to both sides of the pressing portion 31a, and each snap rod 32a has one end connected to the pressing portion 31a and the other end extending in a direction away from the pressing portion 31a and provided with a snap portion 321a. The elastic portion 33a is provided on the pressing portion 31a, and the elastic portion 33a is rotatable with respect to the dust box 10. The pressing portion 31a is rotatable with respect to the dust box 10 via the elastic portion 33a.

[0054] As shown in FIG. 5, the other side of the second case 12a may further include a rod receiving groove 1212a spaced from the recessed groove 1210a. Specifically, when the second case 12a and the cover 13a are combined, the rod receiving groove 1212a and the passage cavity 101 may be isolated from each other without communicating with each other in order to ensure the suction force of the dust suction port 110 and effectively suck up dust. As shown in FIG. 6, the snap rod 32a and the pressing part 31a may be accommodated in the rod receiving groove 1212a. For example, the part of the rod receiving groove 1212a that corresponds to the snap rod 32a fits the outer shape of the snap rod 32a, and the part of the rod receiving groove 1212a that corresponds to the pressing part 31a fits the outer shape of the pressing part 31a. When the snap rod 32a and the pressing part 31a are accommodated in the rod receiving groove 1212a, the elastic part 33a elastically deforms as the pressing part 31a is pressed.

[0055] The elastic part 33a includes, for example, a rotating rod 331a, a torsion spring 332a, and a connecting body 333a, and the connecting body 333a is fixed to the pressing part 31a. The connecting body 333a has a torsion spring arrangement groove (not indicated), for example, in a central region of the connecting body 333a. The rotating rod 331a is inserted into the connecting body 333a along the length direction of the connecting body 333a, and specifically, passes through one end of the connecting body 333a, the torsion spring arrangement groove, and the other end of the connecting body 333a in this order, and protrudes from both ends of the connecting body 333a. The torsion spring 332a is installed in a portion of the rotating rod 331a that is in the torsion spring arrangement groove. Of course, other types of elastic bodies may be used instead of the torsion spring 332a.

[0056] Both ends of the pivot rod 331a may be directly pivotally attached to the second case 12a. The pivot rod 331a may be indirectly pivotally attached to the second case 12a. For example, as shown in FIG. 5 and FIG. 6, the snap unit 30 may further include a fixing portion 34a, in which a connector arrangement groove is formed, and holes are formed on both side walls of the connector arrangement groove, and the pivot rod 331a has portions protruding from both ends of the connector 333a inserted into the holes to be pivotally connected. When the pressing portion 31a and the snap rod 32a are placed in the rod receiving groove 1212a, the fixing portion 43a is fixedly connected to the second case 12a, for example, by a screw. Both ends of the torsion spring 332a may be restricted by the second case 12a and the connector 333a, respectively, so as to be elastically deformed when rotating relative to each other.

[0057] When the snap rod 32a is accommodated in the rod accommodation groove 1212a, the snap portion 321a extends toward the cover 13a. When the pressing portion 31a is subjected to pressure toward the bottom wall 111a, the pressing portion 31a rotates along the axis of the pivot rod 331a, and the torsion spring 332a is further elastically deformed, thus displacing the snap portion 321a and moving it toward the bottom wall 111a. When the pressure received by the pressing portion 31a is removed, the torsion spring 332a rotates the pressing portion 31a in the opposite direction (relative to the pressed state) by the elastic recovery force, displacing the snap portion 321a in the opposite direction and moving it away from the bottom wall 111a.

[0058] A snap hole (not indicated by a reference number) is formed in the body of the cover 13a at a position corresponding to the snap portion 321a. When the pressing portion 31a is pressed, the snap portion 321a protrudes from the snap hole, thus forming a snap connection. When the pressing portion 31a is pressed and receives pressure toward the bottom wall 111a, the pressing portion 31a rotates toward the bottom wall 111a along the axis of the rotating rod 331a, whereby the snap portion 321a is displaced toward the bottom wall 111a, thus no longer protruding from the engagement hole of the cover 13a, and thus disengagement occurs. When the pressing portion 31a is further pressed and rotated, the snap rod 32a is restricted by the rod receiving groove 1212a, thereby restricting further pressing and movement of the pressing portion 31a.

[0059] By providing the elastically pivotable snap unit 30, the snap connection is made more convenient, the structural stability is improved, and the structural design is simplified compared with the above-mentioned exemplary structure.

[0060] 7 to 9, this embodiment may describe a third specific structure example of the dust box 10, which is specifically as follows.

[0061] As shown in FIG. 9, at least two communication holes 1211b are provided in the dust box 10 at an interval. Of the at least two communication holes 1211b, there are communication holes 1211b and communication holes 1211b, and a projection point D of the center C of the dust suction port 110 on a connection line between the center A of the communication hole 1211b and the center B of the communication hole 1211b is between the centers A and B of the two communication holes 1211b. This corresponds to creating a perpendicular line to the connection line of the centers A and B of the two communication holes 1211b through the center C of the dust suction port 110, and the intersection point D where the perpendicular line intersects with the connection line of the centers A and B of the two communication holes 1211b is between the centers A and B of the two communication holes 1211b. The center C of the dust suction port 110 is the geometric center of a geometric shape that is the same as the shape of the dust suction port 110 or the center of gravity of a homogeneous object that is the same as the shape of the dust suction port 110. Similarly, centers A and B of communication hole 1211b are the geometric center of a geometric shape that is the same as the shape of communication hole 1211b or the center of gravity of a homogeneous object that is the same as the shape of communication hole 1211b.

[0062] 7 and 8, the dust box 10 may include a first case 11b, a second case 12b, and a cover 13b. The second case 12b is provided to cover the first case 11b and defines a storage chamber 100, and the cover 13b is provided to cover the second case 12b and defines a passage cavity 101.

[0063] As shown in Fig. 8, the first case 11b is provided, for example, in a tank shape, specifically, includes a bottom wall 111b and a side wall 112b provided around the bottom wall 111b, and the bottom wall 111b and the side wall 112b define a tank structure. When the second case 12b is provided so as to cover the first case 11b, the tank structure of the first case 11b may be combined to form a storage chamber 100. In the first case 11b, for example, a dust suction port 110 may be formed in the side wall 112b, and the dust suction port 110 communicates with the tank structure, i.e., the storage chamber 100.

[0064] The second case 12b may be substantially plate-shaped. At least two communication holes 1211b may be provided in the second case 12b, and the communication holes 1211b penetrate from one side of the second case 12b to the other side of the second case 12b. The communication holes 1211b communicate with the storage chamber 100. By providing at least two communication holes 1211b, the airflow entering the dust suction port 110 flows in multiple directions, thereby preventing the sucked dust and the like from accumulating only at the nearby dust suction port 110, and dispersing and accumulating through different ducts, thus improving the space utilization rate of the dust box 10.

[0065] As shown in Figure 9, the projection point D of the center C of the dust suction port 110 on the connection line between the center A of this communication hole 1211b and the center B of the communication hole 1211b is located between the centers A and B of the two communication holes 1211b. In this way, the airflow entering the dust suction port 110 can be diverted to both sides of the center C, for example, flowing to the communication hole 1211b and the communication hole 1211b and other communication holes 1211b, etc., thereby improving the flow direction of the airflow and allowing the sucked in dust to preferentially accumulate on both sides, improving the space utilization rate of the dust box 10.

[0066] In some embodiments, as shown in FIG. 8, the arrangement direction of the two communication holes 1211b may be approximately along the length direction of the second case 12b, and thus the two communication holes 1211b are spaced apart and located in the area approaching both ends of the length direction of the second case 12b (the direction of the connecting line of the both ends is approximately in the length direction of the second case 12b), and thus when the dust is sucked into the dust box 10, it is preferentially accumulated on both sides together with the airflow, improving the concentration of the dust in the area approaching the dust suction port 110, reducing the clogging of the dust suction port 110, and improving the space utilization rate of the dust box 10. Furthermore, the position of the two communication holes 1211b may be on the side facing the dust suction port 110 of the first case 11b (the side away from the dust suction port 110), and the connecting line between the center of the two communication holes 1211b and the center of the dust suction port 110 is a triangle, for example an isosceles triangle. Of course, the structure of the second case 12b may be the second case 12 shown in the first exemplary structure of the dust box 10.

[0067] Of course, the installation position of the communication hole 1211b may be adjusted by specifically designing the structures of the first case 11b, the second case 12b, and the third case 13b, and the following cases may also be considered.

[0068] 10, in one embodiment, the second case 12b may include a top wall and a side wall, while the first case 11b is provided in a plate shape, the third case 13b is provided to cover the first case 11b, and the second case 12b separates the accommodation chamber 100 and the passage cavity 101. Some of the at least two communication holes 1211b are opened in the top wall and the remaining parts are opened in the side walls, and all of them communicate between the accommodation chamber 100 and the passage cavity 101. Of course, the at least two communication holes may be opened in both opposing side walls of the second case 12b, respectively.

[0069] As shown in FIG. 11, in another embodiment, the first case 11b includes a bottom wall and a side wall, and the second case 12b is provided to cover the side wall of the first case 11b. The third case 13b is provided to cover the bottom wall of the first case 11b. The second case 12b separates the storage chamber 100 from the passage cavity 101. At least one of the at least two communication holes 1211b is opened in the second case 12b, and at least the other is opened in the side wall of the first case 11b, and all of them communicate the storage chamber 100 with the passage cavity 101. Of course, the at least two communication holes 1211b may be opened in both opposing side walls of the first case 11b.

[0070] Optionally, the dust box unit 1 may include at least two filtration net units, each of which filters the airflow of one communication hole 1211b. Each filtration net unit may include a first filtration net 15b, and the number of the first filtration net 15b and the communication hole 1211b may correspond one-to-one. The first filtration net 15b may be provided in the communication hole 1211b so as to filter the airflow, and may be partially accommodated in the communication hole 1211b, for example. Of course, the first filtration net 15b is provided on the side facing the cover 13b of the second case 12b, and covers the communication hole 1211b to filter the airflow. Optionally, each filtration net unit may further include a second filtration net 16b, and the filtration accuracy of the first filtration net 15b is lower than that of the second filtration net 16b. The second filtration net 16b may be provided in the communication hole 1211b, the first filtration net 15b is covered by the second filtration net 16b, and the first filtration net 15b is closer to the cover 13b than the second filtration net 16b. In other words, the first filtration net 15b is located downstream of the second filtration net 16b in the airflow, and the airflow passes through the second filtration net 16b and the first filtration net 15b in sequence to perform double filtration.

[0071] At least two communication holes 1211b are provided and at least two first filtering meshes 15b are correspondingly provided, so that the airflow entering the storage chamber 100 from the dust suction port 110 becomes at least two ducts, thereby changing the flow direction of the ducts and optimizing the airflow, so that the dust is sucked into the dust box 10 and effectively stored, thereby improving the space utilization rate of the dust box 10, improving the filtering efficiency of the dust box 10, and improving the cleaning efficiency, and thus improving the suction power of the dust suction port 110.

[0072] The cover 13b is provided to cover the second case 12b and defines a passage cavity 101. For example, a groove (not shown) is formed on the side of the cover 13b facing the second case 12b, and when the cover 13b and the second case 12b are combined, the groove is surrounded to form the passage cavity 101. Of course, the structures of the cover 13b and the second case 12b may be similar to those of the cover 13 and the second case 12 of the first exemplary structure of the dust box 10.

[0073] Optionally, the dust box 10 may further include a rotating member 17b, and the cover 13b may be rotatably connected to the first case 11b by the rotating member 17b, so that the first case 11b and the cover 13b may be combined or separated. When the first case 11b and the cover 13b are separated from each other, the second case 12b is exposed, and cleaning and maintenance of the first filtration screen 15b and the second filtration screen 16b are facilitated. Specifically, the rotating member 17b may include a rotating shaft 171b, a first bearing portion 172b provided in the first case 11b, and a second bearing portion 173b provided in the cover 13b, and the first case 11b and the cover 13b are relatively rotatable by fitting both ends of the rotating shaft 171b into the first bearing portion 172b and the second bearing portion 173b, respectively.

[0074] Alternatively, the cover 13b may include a cover body 131b and a filter net cover 132b. The cover body 131b has a mounting hole 130b formed at a position corresponding to the first filter net 15b, and the mounting hole 130b communicates with the passage cavity 101. When the cover body 131b is provided to cover the side wall 112b of the first case 11b, the second filter net 16b and the first filter net 15b can be exposed. Alternatively, the filter net cover 132b is rotatably connected to the cover body 131b. For example, one side of the filter net cover 132b is rotatably provided to the cover body 131b via a rotating shaft to form an inner wall of the mounting hole 130b. The filter net cover 132b can be rotated to cover the mounting hole 130b, or the mounting hole 130b can be opened to expose the second filter net 16b and the first filter net 15b. Optionally, the mounting hole 130b is provided opposite the communicating hole 1211b, and the size of the mounting hole 130b is equal to or larger than the size of the communicating hole 1211b. Of course, in another embodiment, the size of the mounting hole 130b may be smaller than the size of the communicating hole 1211b.

[0075] Furthermore, the filtration mesh top cover 132b may be fitted into the mounting hole 130b by a sealing member (see Figure 4, but no symbol is given) that fits the shape of the mounting hole 130b in order to enhance the sealing effect of the dust box 10 and ensure the suction force of the dust suction port 110 and effective flow of the internal airflow of the dust box 10.

[0076] By providing a rotatable filtration mesh top cover 132b that fits into the mounting hole 130b, the second filtration mesh 16b and the first filtration mesh 15b can be easily removed and cleaned, and further, by providing the mounting hole 130b, the inside of the dust box 10 can be easily observed, which is advantageous for inspection and repair.

[0077] The air outlet 120 may be opened in the cover 13b. Of course, if the second case 12b is the same as the second case 12 of the first exemplary structure of the dust box 10, the air outlet 120 may be opened in the second case 12. Optionally, the cover 13 may further have a snap hole.

[0078] In one embodiment, as shown in Fig. 7, the first filtration net 15b is provided at an incline when it is partially accommodated in the communication hole 1211b. For example, the first filtration net 15b can be inclined toward the air outlet 120 so that the airflow filtered by the first filtration net 15b can be quickly transported to the air outlet 120. Specifically, the side of the first filtration net 15b approaching the cover 13b and the side of the second case 12b facing the cover 13b form an included angle, for example, the included angle is greater than 90° and less than 180°.

[0079] Optionally, a notch 1213b is formed on the side edge of the second case 12b away from the dust inlet 110, and a protrusion 1212b is provided on the side of the second case 12b facing the cover 13b, and the protrusion 1212b surrounds the notch 1213b. A fitting groove (not shown) is formed on the side of the cover 13b facing the second case 12b, and the shape of the fitting groove matches the shape of the protrusion 1212b, and when the cover 13b is combined with the second case 12b, the protrusion 1212b of the cover 13b is fitted into the fitting groove to separate the passage cavity 101 and the notch 1213b. As shown in FIG. 8, the first case 11b has a first arrangement groove 1110b, and the opening direction of the first arrangement groove 1110b faces the cover 13b and corresponds to the notch 1213b of the second case 12b. When the second case 12b is provided so as to cover the first case 11b, the accommodation chamber 100 and the first arrangement groove 1110b are separated from each other and do not communicate with each other.

[0080] For the third exemplary structure of the dust box 10, the dust box 10 may further be provided with a snap unit 30 for snap-connecting the dust box 10 to another device. Hereinafter, a further example of the snap unit 30 of the dust box unit 1 will be specifically described.

[0081] The snap unit 30 may include a pressing portion 31b, a snap portion 321b protruding from the pressing portion 31b, and an elastic portion 33b. The snap portion 321b is snap-connected to a snap groove of the device body. The elastic portion 33b supports the pressing portion 31b. Specifically, a second arrangement groove 310b is formed in the pressing portion 31b, and the shape of the pressing portion 31b matches, for example, the shape of the notch portion 1213b. The opening direction of the second arrangement groove 310b is opposite to the protruding direction of the snap portion 321b. The elastic portion 33b is an elastic member such as a spring, and one end of the elastic portion 33b extends into the second arrangement groove 310b and the other end extends into the first arrangement groove 1110b. When the first case 11b and the second case 12b are joined together, the other end of the elastic portion 33b is supported in the first arrangement groove 1110b, thereby supporting the pressing portion 31b and the snap portion 321b. The snap portion 321b corresponds to a snap hole in the cover 13b. Optionally, a sliding groove is provided on both opposing side walls 112b of the first arrangement groove 1110b, and a sliding rail is provided on the corresponding both sides of the pressing portion 31b, and the sliding rail is fitted into the sliding groove, so that the pressing portion 31b can slide in the first arrangement groove 1110b.

[0082] When the pressing portion 31b is not pressed, the elastic portion 33b is elastically supported between the first arrangement groove 1110b and the second arrangement groove 310b, and the pressing portion 31b is abutted to make the snap portion 321b protrude from the snap hole, and can also be snap-connected when assembling with the device main body. When the pressing portion 31b is not pressed, the elastic portion 33b is further elastically compressed, and the pressing portion 31b moves to the first case 11b, for example, to the first arrangement groove 1110b, and the snap portion 321b moves away from the cover 13b in conjunction with this movement, so that the snap portion 321b does not protrude from the snap hole of the cover 13b and is disengaged.

[0083] Taking a cleaning robot as an example, the cleaning robot (not shown) includes, for example, a device body (not shown) and the dust box unit 1 of this embodiment, and the device body is for cleaning, for example, the ground.

[0084] Specifically, for example, the device body includes a case, a roll brush provided in the case, and a drive motor for driving the roll brush to roll. The device body can be used in combination with the dust box unit 1 of this embodiment, and for example, a snap groove (not shown) is opened in the case of the device body to snap-connect with the snap parts 321 (321a, 321b). Specifically, when pressure is applied to the pressing portion 31 (31a, 31b), the elastic portion 33 (33a, 33b) elastically deforms, and the pressing portion 31 (31a, 31b) moves the snap portion 321 (321a, 321b) away from the snap groove, disengaging the snap portion 321 (321a, 321b) from the snap groove, and when pressure is not applied to the pressing portion 31 (31a, 31b), the elastic recovery force of the elastic portion 33 (33a, 33b) causes the pressing portion 31 (31a, 31b) to move the snap portion 321 (321a, 321b) closer to the snap groove or maintain a state close to the snap groove, thereby snap-connecting the snap portion 321 (321a, 321b) to the snap groove.

[0085] In this embodiment, the snap unit 30 is provided to easily snap-connect the dust box unit 10 to the main body of the cleaning device. In some embodiments, the snap unit 30 includes two snap parts 321 (321a), which makes the dust box unit 1 of this embodiment snap-connected to the main body of the device tighter and improves the fixing effect of the two structures, and the two snap parts 321 (321a) limit the relative displacement between the dust box 10 and the case of the main body of the device, ensuring the stability of the structure.

[0086] The connecting member 22 of the suction unit 20 of this embodiment may be fixed to the case of the device body. The good snapping and restricting effects of the snap unit 30 can prevent the dust box 10 and the device body from being displaced, thereby effectively ensuring the sealing effect between the connecting member 22 and the air outlet 120.

[0087] In order to further increase the flow rate of the airflow and optimize the design of the structural space, this embodiment provides the following example of the structure of the connecting member 22.

[0088] Referring to FIG. 12, the outer shape of the connection member 22 in this embodiment may be irregular. A first ventilation hole 221 may be formed on one side of each connection member 22, and the first ventilation hole 221 communicates with the outlet 120 corresponding to the connection member 22, and a second ventilation hole 222 communicating with the first ventilation hole 221 is formed on the other side of the connection member 22. The fan 21 corresponding to the connection member 22 is provided on the other side of the connection member 21 and communicates with the second ventilation hole 222. The shape of the first ventilation hole 221 can be matched with the shape of the outlet 120 or designed according to specific circumstances. For example, the shape of the first ventilation hole 221 shown in FIG. 9 is matched with the shape of the outlet 120 shown in FIG. 1 to FIG. 6. The first ventilation hole 221 shown in FIG. 9 may be designed to have a specific shape according to the outlet 120 shown in FIG. 7 and FIG. 8 so that both are matched. In this embodiment, the shapes of the connection member 22 and the first ventilation hole 221 are not limited, and the same is true for the second ventilation hole 222.

[0089] For example, the first ventilation opening 221 opened on one side of the connecting member 22 and the second ventilation opening 222 opened on the other side of the connecting member 22 may be offset from each other, and for example, after the connecting member 22 is assembled to the dust box 10, the projection of the first ventilation opening 221 on the plane where the air outlet 120 is located and the projection of the second ventilation opening 222 on the plane where the air outlet 120 is located may partially overlap or may not overlap at all. There are spaces inside the connecting member 22, and the spaces are the first ventilation opening 221 and the second ventilation opening 222, respectively. In this way, the flow path diameter of the airflow inside the connecting member 22 may be curved.

[0090] In this embodiment, the angle between the plane on which the first vent 221 is located and the plane on which the second vent 222 is located is greater than 0° and less than 180°. Optionally, the angle between the plane on which the first vent 221 is located and the plane on which the second vent 222 is located is greater than 20° and less than 100°. Optionally, the angle between the plane on which the first vent 221 is located and the plane on which the second vent 222 is located is greater than 30° and less than 90°. Optionally, the angle between the plane on which the first vent 221 is located and the plane on which the second vent 222 is located is greater than 40° and less than 60°. Optionally, the angle between the plane on which the first vent 221 is located and the plane on which the second vent 222 is located is 46°.

[0091] 13, in another exemplary structure of the connecting member 22, the main differences from the above exemplary structure include: a partition plate 223 is provided in the first ventilation hole 221 of the connecting member 22, and the partition plate 223 has one or more through holes provided at intervals. The connecting member 22 is connected between the fan 21 and the air outlet 120, and the through holes can communicate between the second ventilation hole 222 and the air outlet 120. The partition plate 223 is further provided to prevent foreign matter from entering the fan 21 through the first ventilation hole 221 and causing interference or damage to the fan 21.

[0092] The fan 21 is, for example, a centrifugal blower or a blower, and either plays a role of blowing air. The fan 21 is provided on the other side of the corresponding connecting member 22, and communicates with the second ventilation port 222. When the fan 21 is operated, the airflow passes through the dust suction port 110, the storage chamber 100, the passage cavity 101, the space of the extension part 122, the air outlet 120, the first ventilation port 221, and the second ventilation port 222 in order, and is blown by the fan 21.

[0093] In this embodiment, when the connecting member 22 is aligned and communicated with the corresponding air outlet 120, it may be sealed by a seal ring 24, and the seal ring 24 is, for example, a rubber seal ring. That is, the seal ring 24 is provided at the communication point between the first ventilation port 221 and the air outlet 120, and this communication point can be sealed.

[0094] In this embodiment, the ventilation structure of the connection member 22 and the angle between the plane where the first ventilation hole 221 is located and the plane where the second ventilation hole 222 is located can optimize the duct design of the entire dust box unit 1 and increase the air flow speed. Furthermore, by setting the angle between the plane where the first ventilation hole 221 is located and the plane where the second ventilation hole 222 is located, the fan 21 has a certain inclination when installed (see FIG. 1), thereby reducing the installation space of the fan 21.

[0095] As shown in FIG. 2, the dust suction unit 20 of this embodiment may further include a cushion 23, and an accommodating groove 223 is formed on the other side of the connecting member 22 where the second ventilation hole 222 is opened, the accommodating groove 223 is connected to the second ventilation hole 222, the shape of the accommodating groove 223 is compatible with the shape of the cushion 23, the cushion 23 is accommodated in the accommodating groove, and is located between the fan 21 and the connecting member 22.

[0096] In this embodiment, a storage groove 223 for accommodating the cushion 23 is provided, and the fan 21 is attached to the connecting member 22 by the cushion 23, thereby effectively reducing the vibration of the fan 21 when it is operating, thereby avoiding the impact on the connecting member 22 caused by effectively reducing the fan 21, effectively ensuring the sealing effect between the connecting member 22 and the dust box 10, and ensuring the air blowing effect of the fan 21.

[0097] The cleaning device 300 described in the embodiment of the cleaning device of the present application is, for example, the above-mentioned cleaning robot or dust collector, but is not limited to the cleaning robot or dust collector. Referring to Fig. 14, the cleaning device 300 of this embodiment includes a device body 2 and the dust box unit 1 described in the above embodiment.

[0098] For example, in the case of a dust suction device, the device body 2 includes, for example, a case, a circuit board, etc., and may also include a floor brush, which is connected to the case via an air duct. The dust box unit 1 is provided inside the case of the device body 2, and can adsorb foreign objects, dust, etc. via the floor brush and the air duct.

[0099] In the case of a cleaning robot, the device body 2 includes, for example, a case, a roll brush, and a motor that drives the roll brush to roll. The roll brush cleans up dirt, miscellaneous objects, dust, etc., and the dust box unit 1 attracts the dirt, miscellaneous objects, dust, etc. cleaned up by the roll brush.

[0100] As described above, the present application provides a stronger suction force and a more stable airflow by designing at least two fans 21 and two ducts, and effectively improves the cleaning effect. The present application provides at least two communication holes 1211 for respectively accommodating the first filter screens 15, thereby optimizing the flow direction of the airflow in the dust box 10 and the design of the ducts, thereby improving the filtering and cleaning effects of the dust box 10.

[0101] The above is merely an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or process equivalent transformation made by utilizing the contents of the specification and drawings of the present application, or direct or indirect use in other related technical fields, shall be included in the patent scope of the present application.

Claims

1. a dust box having a storage chamber, a dust suction port, and two air outlets, the dust suction port communicating with the storage chamber, and the two air outlets each communicating with the storage chamber; Two fans are provided corresponding to the two air outlets, respectively, and are used to form air currents that pass through the dust suction port, the storage chamber, and the air outlet in sequence; A dust box unit comprising: A dust box unit characterized in that the air outlets are located on opposite sides of the dust box so that the airflows formed by the two fans flow out of the dust box in different directions so as to cooperate synergistically, and the dust suction port is located between the two air outlets.

2. The dust box unit described in claim 1, characterized in that the dust box unit includes two connecting members, the connecting members, the fans and the air outlets have a one-to-one correspondence, the connecting members are arranged between the corresponding fans and the corresponding air outlets, and the corresponding fans are connected to the corresponding air outlets via the connecting members.

3. A first ventilation hole is formed on one side of each of the connection members, and the first ventilation hole communicates with the air outlet corresponding to the connection member; a second ventilation hole communicating with the first ventilation hole is formed on the other side of the connection member, the fan corresponding to the connection member is provided on the other side of the connection member and communicates with the second ventilation hole; The dust box unit according to claim 2 , wherein an included angle between a plane on which the first vent hole is located and a plane on which the second vent hole is located is greater than 0° and less than 180°.

4. The dust box unit includes a cushion, a receiving groove is formed on the other side of the connecting member where the second ventilation hole is formed, The accommodation groove communicates with the second ventilation port, and the shape of the accommodation groove matches the shape of the cushion; The dust box unit according to claim 3 , wherein the cushion is accommodated in the accommodation groove and is located between the fan and the connecting member.

5. the connecting member includes a partition plate provided in the first ventilation port, The dust box unit according to claim 3, wherein the partition plate has one or more through holes.

6. The dust box has a passage cavity formed therein; The passage cavity and the storage chamber are adjacent to each other in a thickness direction of the dust box, and the passage cavity is connected to the storage chamber; The passage cavity communicates with the air outlet, A dust box unit as described in any one of claims 1 to 5, characterized in that the passage cavity is located downstream of the air flow from the storage chamber, and the size of the passage cavity in the thickness direction of the dust box is equal to or smaller than the size of the storage chamber in the thickness direction of the dust box.

7. The dust box includes a first case, a second case, and a cover, One side of the second case is provided to cover the first case, and the storage chamber is formed, the cover is provided to cover the other side of the second case, and the passage cavity is formed; The dust suction port is opened in the first case or the second case, The two air outlets are provided in the second case at an interval, The dust box unit according to claim 6, wherein the dust suction port is provided at an interval from the two air outlets.

8. a communication hole is formed in the second case, the communication hole penetrates from one side of the second case to the other side of the second case to communicate the passage cavity with the storage chamber; The dust box unit includes a first filter screen and a second filter screen, the second filter net and the first filter net are provided in the second case and sequentially cover the communication hole, or the second filter net is provided in the second case and covers the communication hole; The number of the first filter nets is at least two, and the at least two first filter nets are provided in the second case and cover two of the air outlets respectively; The dust box unit according to claim 7, wherein the filtering accuracy of the second filtering screen is smaller than the filtering accuracy of the first filtering screen.

9. The cover includes a cover body and a filter mesh top cover, The cover body has a mounting hole formed at a position corresponding to the first filter screen, the mounting hole communicating with the passage cavity; The filtration net lid is rotatably connected to the cover body, and the mounting hole can be covered or opened by rotating the filtration net lid; The dust box unit according to claim 8, wherein the size of the mounting hole is equal to or larger than the size of the communication hole.

10. 9. The dust box unit according to claim 8, wherein the dust box includes a snap unit that is snap-connected to a main body of the cleaning device.

11. 1. A cleaning device comprising: A device body, A cleaning device comprising: a dust box unit according to any one of claims 1 to 10 connected to the device main body.

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