Air duct structure of sweeping robot

Abstract

The air duct structure of the sweeping robot comprises a main machine, a dust collection box and an air suction device, an installation groove is formed in the main machine, a dust collection cavity is formed in the dust collection box, an avoiding groove is formed in the rear side of the dust collection box, and a first air outlet is formed in the position, corresponding to the avoiding groove, of the dust collection box. The main machine forms an air suction shell in the installation groove, the air suction device is fixed in the air suction shell, an air inlet is formed in the top face of the air suction shell, the dust collection box is installed in the installation groove, and the air suction shell abuts against the dust collection box at the first air outlet. The first air outlet, the air inlet and the air inlet end of the air suction device are vertically connected in a sealed mode. The air duct structure of the sweeping robot is improved, and wind power loss is reduced.

Description

Technical Field

[0001] The utility model relates to the field of floor sweepers, in particular to an air duct structure of a floor sweeping robot. Background Art

[0002] In the fields of smart home and automatic cleaning, the floor sweeping robot, as an important tool to improve the quality of life, the continuous optimization of its design and function has always been the focus of the industry. During the process of cleaning garbage, the floor sweeping robot mainly relies on the rotation of the fan inside it to generate suction force to effectively collect dust, debris and other sundries on the ground. However, in the existing design of floor sweeping robots, there is a technical problem that needs to be optimized urgently, that is, the layout problem between the air outlet of the dust collection box and the air inlet of the fan.

[0003] Specifically, when the floor sweeping robot is working, the fan inside it generates a strong wind pressure suction force through high-speed rotation. This suction force is guided through a carefully designed dust collection air duct to suck the garbage on the ground into the dust collection box. However, in many current designs of floor sweeping robots, the air outlet of the dust collection box is not directly opposite to the air inlet of the fan, but an indirect connection method is adopted. Although this design simplifies the structure and manufacturing difficulty of the machine to a certain extent, it also brings a significant problem: when the suction force generated by the fan is transmitted to the dust collection box through the dust collection air duct, certain losses will inevitably occur. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above technical problems, and provide an air duct structure of a floor sweeping robot. This application aims to improve the air duct structure of the floor sweeping robot and reduce wind loss.

[0005] An air duct structure of a floor sweeping robot includes a main body, a dust collection box and a suction device. An installation groove is provided on the main body. A dust collection cavity is formed inside the dust collection box. An avoidance groove is provided at the rear side of the dust collection box. A first air outlet is provided at the position of the dust collection box corresponding to the avoidance groove. The main body forms a suction housing in the installation groove. The suction device is fixed in the suction housing. An air inlet is provided on the top surface of the suction housing. The dust collection box is installed in the installation groove. The suction housing presses against the dust collection box at the first air outlet, so that the first air outlet, the air inlet and the air inlet end of the suction device are vertically and hermetically interconnected.

[0006] According to the air duct structure of the floor sweeping robot of the present application, by improving the structure of the dust collection box, the dust collection box can extend backward to form an avoidance groove, and the space flowing out of the avoidance groove can accommodate the air suction device on the main body and the air suction housing that wraps and installs the air suction device. A first air outlet is formed above the avoidance groove. In this way, when the dust collection box is installed on the main body, a vertically sealed interconnection structure of the first air outlet, the air inlet, and the air inlet end of the air suction device can be formed. The suction force generated by the air suction device can be directly vertically communicated with the first air outlet without passing through other air duct structures, reducing the loss of suction force.

[0007] Furthermore, a sealing ring is provided on the dust collection box outside the outer circle of the first air outlet, and the air suction housing is pressed against the sealing ring. Setting the sealing ring can keep the first air outlet and the air inlet in sealed communication.

[0008] Still further, a filtering device is installed in the dust collection box. The dust collection chamber includes an inlet area and an outlet area. The outlet area is arranged at the first air outlet. The size of the inlet area is larger than that of the outlet area, and the filtering device is installed in the inlet area. The larger size of the inlet area is convenient for installing the filtering device and also convenient for storing more garbage. When the garbage is sucked in from the inlet area, after being filtered by the filtering device, the garbage is contained in the inlet area, and the air is discharged from the first air outlet in the outlet area out of the dust collection box.

[0009] Still further, the dust collection box includes a box body and a cover body that are detachably connected. The side wall of the box body at the position corresponding to the inlet area is provided with a support step. A pressing plate is provided on the cover body and / or the filtering device. The lower side of the filtering device abuts against the support step, and the upper side abuts against the cover body through the pressing plate. The filtering device is stably and horizontally installed in the dust collection box through the limiting structure between the box body and the cover body.

[0010] Still further, a second air outlet is provided on the main body, and the second air outlet is opposite to the air outlet end of the air suction device.

[0011] Still further, the air suction device is a fan.

[0012] Still further, a first dust suction port communicating with the dust collection chamber is provided at the front end of the dust collection box, and a soft rubber baffle is provided on the first dust suction port. The soft rubber baffle can be automatically opened under the action of the suction force and automatically closed after the suction force stops, avoiding the leakage of garbage from the dust collection chamber.

[0013] Still further, a second dust suction port is provided on the main body, and the second dust suction port is in sealed communication with the first dust suction port.

[0014] Further, it further includes a handle, the handle is hingedly installed on the dust collection box, the dust collection box is installed in the installation groove, the handle can be rotated to a position where it is received in the installation groove, so that the handle is at least flush with the top surface of the installation groove. The handle facilitates the installation and disassembly of the dust collection box.

[0015] Further, a limiting groove is provided on the side wall of the installation groove, a limiting block extends outward from the handle, the limiting block rotates with the handle, when the handle is received in the installation groove, the limiting block rotates into the limiting groove, and when the handle is lifted, the limiting block rotates out of the limiting groove. Through the action cooperation between the limiting block and the handle, a limiting structure between the dust collection box and the installation groove is formed. Description of the Drawings

[0016] Figure 1 It is a cross-sectional view of the floor sweeping robot of the present invention.

[0017] Figure 2 It is a cross-sectional view of the dust collection box of the present invention.

[0018] Figure 3 It is a perspective view of the dust collection box of the present invention.

[0019] Figure 4 It is an exploded view of the dust collection box of the present invention.

[0020] Figure 5 It is an exploded view of the floor sweeping robot of the present invention. Detailed Embodiments

[0021] The air duct structure of a floor sweeping robot of the present invention is described in conjunction with the accompanying drawings.

[0022] As Figures 1 to 5 shown in a floor sweeping robot, the suction air duct structure of the floor sweeping robot is improved to reduce the loss of suction force, including the main body 1 of the floor sweeping robot, the dust collection box 2 and the air suction device 3. An installation groove 11 is provided on the main body 1 of the floor sweeping robot. A dust collection cavity 21 is provided inside the dust collection box 2. An avoidance groove 22 is provided at the rear side of the dust collection box 2. A first air outlet 241 is provided at the position of the dust collection box 2 corresponding to the avoidance groove 22. An air suction housing 12 is formed in the installation groove 11 of the main body 1 of the floor sweeping robot. The air suction device 3 is fixed in the air suction housing 12. An air inlet 121 is provided on the top surface of the air suction housing 12. The dust collection box 2 is installed in the installation groove 11. The air suction housing 12 presses against the dust collection box 2 at the first air outlet 241, so that the first air outlet 241, the air inlet 121 and the air inlet end of the air suction device 3 are vertically and hermetically interconnected. The suction force generated by the air suction device 3 can be directly vertically communicated with the first air outlet 241 without passing through other air duct structures, reducing the loss of suction force.

[0023] As Figures 1 to 3As shown, a dust collection box 2 is provided with a sealing ring 243 on the outer ring of the first air outlet 241, and the air suction housing 12 is pressed against the sealing ring 243. The sealing ring 243 is provided to keep the first air outlet 241 and the air inlet 121 in sealed communication, avoiding the suction force generated by the air suction device 3 from leaking through the gap between the shell structures of the first air outlet 241 and the air inlet 121.

[0024] As Figures 1 to 4 shown, a filtering device 26 is installed in the dust collection box 2. The dust collection chamber 21 includes an inlet area 211 and an outlet area 212. The outlet area 212 is arranged at the first air outlet 241. The size of the inlet area 211 is larger than that of the outlet area 212. The filtering device 26 is installed in the inlet area 211. The inlet area 211 is in the shape of a cuboid, and the outlet area 212 is flat. The inlet area 211 and the outlet area 212 are integrally in an L shape. The larger size of the inlet area 211 facilitates the installation of the filtering device 26 and also facilitates the storage of more garbage. When the garbage is sucked in from the inlet area 211, after being filtered by the filtering device 26, the garbage is contained in the inlet area 211, and the air is discharged from the first air outlet 241 of the outlet area 212 out of the dust collection box 2.

[0025] As Figures 1 to 4 shown, the dust collection box 2 includes a box body 24 and a cover body 25 which are detachably connected. The box body 24 is provided with a support step 244 on the side wall corresponding to the position of the inlet area 211. The cover body 25 and / or the filtering device 26 are provided with pressing plates (261, 251). The lower side of the filtering device 26 abuts against the support step 244, and the upper side abuts against the cover body 25 through the pressing plates (261, 251). In this embodiment, both the cover body 25 and the filtering device 26 are provided with pressing plates (261, 251), and they abut against each other, making the filtering device 26 more stable and not easy to shake.

[0026] As Figure 4 shown, the front end of the dust collection box 2 is provided with a first dust suction port 242 communicating with the dust collection chamber 21. A software baffle 23 is provided on the first dust suction port 242. The software baffle 23 can be automatically opened under the action of suction force and automatically closed after the suction force stops, avoiding the leakage of garbage from the dust collection chamber 21.

[0027] The cover body 25 includes a hinged part and a fixed part. The fixed part is fixed to the outlet area 212, and the hinged part is fixed to the inlet area 211. The hinged part can be opened or closed relative to the box body 24. By opening the hinged part, the filtering device 26 can be disassembled and the garbage in the dust collection box 2 can be cleaned. As Figure 2As described above, after being sucked into the dust collection box 2 from the first dust suction port 242, it will be evenly filtered by the horizontally placed filtering device 26 above the first dust suction port 242. The air after even filtering will move towards the side outlet area 212 and will finally be discharged from the first air outlet 241 out of the dust collection box 2.

[0028] As Figure 5 shown, a second air outlet 122 is provided on the main body 1. The second air outlet 122 is arranged on the side of the main body 1. The second air outlet 122 faces the air outlet end of the air suction device 3, so that the air sucked by the air suction device 3 is discharged from the side of the main body 1.

[0029] The air suction device 3 is a blower. The upper part of the blower is the air inlet end, which faces the air inlet 121, and the side is the air outlet end, which faces the second air outlet 122.

[0030] As Figure 5 shown, a second dust suction port 112 is provided on the main body 1. A sealing device is also provided on the outer ring of the second dust suction port 112, so that the dust collection box 2 can be installed in the installation groove 11, and the second dust suction port 112 can be hermetically communicated with the first dust suction port 242.

[0031] It further includes a handle 4. The handle 4 is hingedly installed on the dust collection box 2. The dust collection box 2 is installed in the installation groove 11. The handle 4 can be rotated to a position where it is received in the installation groove 11, so that the handle 4 is at least flush with the top surface of the installation groove 11, enabling the lid of the main body 1 to be smoothly closed on the main body 1.

[0032] A limiting groove 111 is provided on the side wall of the installation groove 11. The handle 4 extends outwards with a limiting block 41. The limiting block 41 is an eccentric shaft body extending from the hinge shaft of the handle 4. The limiting block 41 rotates with the handle 4. When the handle 4 is received in the installation groove 11, the limiting block 41 rotates into the limiting groove 111. When the handle 4 is lifted, the limiting block 41 rotates out of the limiting groove 111. When the user disassembles or installs the dust collection box 2, a force will be applied through the handle 4 for convenient operation. For example, when disassembling, the handle 4 will be rotated first so that the handle 4 can be lifted, and the limiting block 41 also rotates with the handle 4. When the handle 4 rotates to a vertical or nearly vertical position, the limiting block 41 can be rotated out of the limiting groove 111, and vice versa, the rotating block is rotated into the limiting groove 111. Through the action linkage of the limiting block 41 and the handle 4, an installation limiting structure for the dust collection box 2 is formed.

[0033] Based on the disclosure and teachings of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the scope of protection of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. An air duct structure of a sweeping robot, characterized in that: The present invention comprises a main unit, a dust collecting box and an air suction device, wherein the main unit is provided with an installation groove, the dust collecting box has a dust collecting cavity, the rear side of the dust collecting box is provided with an avoidance groove, the dust collecting box is provided with a first air outlet at a position corresponding to the avoidance groove, the main unit forms an air suction shell in the installation groove, the air suction device is fixed in the air suction shell, the top surface of the air suction shell is provided with an air inlet, the dust collecting box is installed in the installation groove, the air suction shell is pressed against the dust collecting box at the first air outlet, so that the first air outlet, the air inlet and the air inlet end of the air suction device are vertically sealed and interconnected.

2. The air duct structure of the sweeping robot according to claim 1, characterized in that: A sealing ring is provided on the dust collecting box on the outer ring of the first air outlet, and the air suction shell is pressed against the sealing ring.

3. The air duct structure of the sweeping robot according to claim 1, characterized in that: A filter device is installed in the dust box, the dust collecting chamber includes an inlet area and an outlet area, the outlet area is arranged at the first air outlet, the size of the inlet area is larger than the size of the outlet area, and the filter device is installed in the inlet area.

4. The air duct structure of the sweeping robot according to claim 3, characterized in that: The dust collecting box comprises a box body and a cover body which are detachably connected. The box body is provided with a supporting step on the side wall corresponding to the inlet area. The cover body and / or the filter device are provided with a pressing plate. The lower side of the filter device abuts against the supporting step, and the upper side abuts against the cover body through the pressing plate.

5. The air duct structure of the sweeping robot according to claim 1, characterized in that: The host is provided with a second air outlet, and the second air outlet is opposite to the air outlet end of the air suction device.

6. The air duct structure of the sweeping robot according to claim 1, characterized in that: The air suction device is a fan.

7. The air duct structure of the sweeping robot according to claim 1, characterized in that: The front end of the dust collecting box is provided with a first dust suction port connected to the dust collecting cavity, and the first dust suction port is provided with a soft rubber baffle.

8. The air duct structure of the sweeping robot according to claim 7, characterized in that: The host is provided with a second dust suction port, and the second dust suction port is sealed and connected with the first dust suction port.

9. The air duct structure of the sweeping robot according to claim 1, characterized in that: It also includes a handle, which is hingedly mounted on the dust box, the dust box is mounted in the mounting slot, and the handle can be rotated to a position where it is received in the mounting slot, so that the handle is at least flush with the top surface of the mounting slot.

10. The air duct structure of the sweeping robot according to claim 9, characterized in that: A limit groove is provided on the side wall of the installation groove, and the handle extends outwardly with a limit block. The limit block rotates with the handle. When the handle is stored in the installation groove, the limit block rotates into the limit groove. When the handle is lifted, the limit block rotates out of the limit groove.

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