Garbage separation device applied to cleaning robot

Abstract

The invention discloses a garbage separation device applied to a cleaning robot. The garbage separation device comprises a barrel, an end cover and an air outlet pipe. The end cover is assembled at one end of the barrel, the air outlet pipe is arranged in the barrel, the spiral piece is used for forming a spiral air channel and an air inlet connected with the spiral air channel, the barrel is provided with a separation opening, and the air outlet pipe is connected with an air outlet. The spiral air duct can form spiral air flow, and garbage is separated from the air flow through centrifugal force.

Description

Technical Field

[0001] The present invention relates to the technical field of sweeping robots, and in particular to a garbage separation device applied to the cleaning robot. Background Art

[0002] The sweeping robot includes a dust box, which is connected to a fan. In order to keep the garbage in the dust box, a filter is provided between the dust box and the fan to block the garbage and keep it in the dust box instead of flowing to the fan. The filter is a consumable part. After a period of use, the garbage will adhere to the filter, increasing the resistance of the airflow and thus affecting the suction of the airflow. Therefore, the filter needs to be replaced regularly, resulting in a high cost of use. Summary of the invention

[0003] The object of the present invention is to provide a garbage separation device applied to a cleaning robot, which forms a spiral wind flow and utilizes centrifugal force to separate garbage from the wind flow.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A garbage separation device applied to a cleaning robot comprises a cylinder, an end cover and an air outlet pipe;

[0006] The end cover is assembled at one end of the cylinder, and the space formed by the end cover and the cylinder constitutes an inner cavity;

[0007] The air outlet pipe is arranged inside the cylinder;

[0008] A spiral blade is provided on the outer side of one end of the air outlet pipe close to the end cover, and the spiral blade is used to form a spiral air duct;

[0009] The end cover is provided with an air inlet connected to the spiral air duct;

[0010] A separation port is provided on the wall surface of one end of the cylinder away from the end cover;

[0011] A through hole is provided on the wall surface of one end of the air outlet pipe close to the separation port;

[0012] The end cover is provided with an air outlet connected to the air outlet pipe.

[0013] In some embodiments, the separation port is in the shape of an elongated strip and is circumferentially extended along the wall surface of the cylinder.

[0014] In some embodiments, the air outlet pipe is coaxially arranged with the cylinder.

[0015] In some embodiments, the number of spiral turns of the spiral sheet is equal to or greater than one.

[0016] In some embodiments, the through-holes are covered with a filter.

[0017] In some embodiments, the end cap is connected to the cylinder body via a first twist-lock structure.

[0018] In some embodiments, the first rotating buckle structure includes a first groove body, a first limiting boss, a first convex buckle and a first limiting groove;

[0019] A first slot body is provided on the inner side of the wall surface of the end cover, the first slot body extends circumferentially, the beginning end of the first slot body is open, and a first limiting boss is provided on the end of the first slot body;

[0020] A first convex buckle is arranged on the outer side of the wall surface of the cylinder, and the first convex buckle is provided with a first limiting groove matched with the first limiting boss.

[0021] In some embodiments, the air outlet pipe is connected to the end cover via a second screw-on structure.

[0022] In some embodiments, the second rotating buckle structure includes a second groove body, a second limiting boss, a second convex buckle and a second limiting groove;

[0023] A second slot body is provided on the inner side of the wall surface of the air outlet of the end cover, the second slot body extends circumferentially, the beginning end of the second slot body is open, and a second limiting boss is provided on the end of the second slot body;

[0024] A second convex buckle is provided on the outer side of the wall surface of the air outlet pipe, and the second convex buckle is provided with a second limiting groove matched with the second limiting boss.

[0025] The beneficial effects of the present invention are as follows: the separation device can form a spiral wind flow and use centrifugal force to separate garbage from the wind flow.

[0026] In addition, the separation device is assembled from components such as a cylinder, an end cover and an air outlet pipe, and is assembled through a screw-on structure, so it is easy to manufacture and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a structural diagram of the separation device of the present invention;

[0028] Figure 2 is an exploded view of the separation device of the present invention;

[0029] Figure 3 is a cross-sectional view of a separation device of the present invention;

[0030] Figure 4 One of the structural diagrams of the end cover of the present invention;

[0031] Figure 5 It is a structural diagram of the cylinder of the present invention;

[0032] Figure 6 The second structural diagram of the end cover of the present invention;

[0033] Figure 7 It is a structural diagram of the air outlet pipe and the spiral blade of the present invention;

[0034] Figure 8 This is one of the structural diagrams of the cleaning robot of the present invention;

[0035] Fig. 9 This is the second structural diagram of the cleaning robot of the present invention;

[0036] Fig.10 is a cross-sectional view of the cleaning robot of the present invention;

[0037] Among them: 2-separation device; 20-inner cavity; 2a-air inlet; 2b-air outlet; 21-spiral air duct; 211-spiral blade; 22-separation port; 23-through hole; 210-cylinder; 220-end cover; 230-air outlet pipe; 240-filter element; 24-first rotary buckle structure; 241-first slot body; 242-first limiting boss; 243-first convex buckle; 244-first limiting groove; 25-second rotary buckle structure; 251-second slot body; 252-second limiting boss; 253-second convex buckle; 254-second limiting groove; 1-dust box; 3-negative pressure generator; 4-dust suction port; 5-first pipe; 6-second pipe; 7-chassis. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0039] refer to Figures 1 to 7 , a garbage separation device applied to a cleaning robot, the separation device 2 can form a spiral wind flow and use centrifugal force to separate garbage from the wind flow.

[0040] refer to Figures 1 to 3 , the separation device 2 includes components such as a cylinder 210, an end cover 220 and an air outlet pipe 230;

[0041] The end cap 220 is assembled at one end of the cylinder 210, and the space formed by the end cap 220 and the cylinder 210 constitutes the inner cavity 20;

[0042] The air outlet pipe 230 is disposed inside the cylinder 210, and one end of the air outlet pipe 230 is assembled to the end cover 220;

[0043] A spiral sheet 211 is provided on the outer side of one end of the air outlet pipe 230 close to the end cover 220. The spiral sheet 211 is arranged around the air outlet pipe 230. The spiral sheet 211 is used to form a spiral air duct 21. It can be understood that the spiral sheet 211, a part of the outer wall surface of the air outlet pipe 230, a part of the inner wall surface of the end cover 220 and / or a part of the inner wall surface of the cylinder 210 constitute the spiral air duct 21. The wind flow forms a spiral wind flow under the guidance of the spiral sheet 211.

[0044] The end cover 220 is provided with an air inlet 2a connected to the spiral air duct 21; that is, the beginning of the spiral air duct 21 is connected to the air inlet 2a, and the end of the spiral air duct 21 is connected to the inner cavity 20;

[0045] A separation port 22 is provided on the wall surface of one end of the cylinder 210 away from the end cover 220; thus, a spiral air duct 21 is provided at one end of the inner cavity 20, and a separation port 22 is provided at the other end of the inner cavity 20, and the airflow flows from the spiral air duct 21 to the separation port 22;

[0046] A through hole 23 is provided on the wall surface of one end of the air outlet pipe 230 close to the separation port 22;

[0047] The end cover 220 is provided with an air outlet 2b connected to the air outlet pipe 230; the air outlet 2b can be coaxially arranged with the air outlet pipe 230;

[0048] Under the action of negative pressure wind flow, the garbage flows from the air inlet 2a into the spiral air duct 21, and the spiral air duct 21 causes the wind flow to become a spiral wind flow and flow toward the separation port 22. The garbage is separated from the separation port 22 under the action of centrifugal force. The separated garbage can be collected in a container such as the dust box 1. The wind flow with separated garbage flows from the through hole 23 into the air outlet duct 230, and then flows along the air outlet duct 230 to the air outlet 2b, and finally flows to the outside. In this way, the separation device can form a spiral wind flow and use centrifugal force to separate garbage from the wind flow.

[0049] refer to Figure 2 The separation port 22 is in the shape of a long strip and is arranged to extend circumferentially along the wall surface of the cylinder 210. As a result, the garbage can have more time and space to be separated from the wind flow during the spiral motion or circular motion, and the garbage can be separated more fully and with higher separation efficiency.

[0050] The air outlet pipe 230 is coaxially arranged with the cylinder 210 , which is beneficial to forming the spiral air duct 21 and better promoting the air flow to flow in the inner cavity 20 in a spiral manner.

[0051] refer to Figure 2 , the number of spiral turns of the spiral piece 211 is equal to or greater than 1; it can be understood that: the spiral angle of the spiral piece 211 is equal to or greater than 360 degrees, so that the flow direction of the wind can be effectively guided to form a spiral wind flow.

[0052] refer to Figure 2 and Figure 3, the through hole 23 is covered with a filter 240. The filter 240 can be a stainless steel filter mesh in an annular shape, which is mounted or clamped on the air outlet pipe 230. In this way, the airflow needs to pass through the filter 240 before it can flow into the air outlet pipe 230. Due to the different particle sizes or weights of garbage, the centrifugal force obtained is different. There may be a small amount of garbage with smaller particles or lighter weight distributed in the central area of ​​the airflow. In order to further reduce or prevent the garbage from flowing to the outside, a filter 240 can be set to block the garbage, so that the garbage stays in the inner cavity 20 and continues to move in a spiral or circular motion.

[0053] In addition, since there is basically no garbage or very little garbage in the central area of ​​the wind flow, and the garbage tends to move outward under the action of centrifugal force, the amount of garbage attached to the filter element 240 is small, and the filter element 240 can be used for a long time without frequent replacement.

[0054] refer to Figure 2 , Figure 4 and Figure 5 The end cover 220 is connected to the cylinder 210 through a first screw-on structure 24 , and a convenient detachable connection is achieved through the first screw-on structure 24 .

[0055] The first screw-on structure 24 includes a first slot body 241, a first limiting boss 242, a first convex buckle 243 and a first limiting groove 244;

[0056] A first groove 241 is provided on the inner side of the wall surface of the end cover 220. The first groove 241 extends circumferentially. The beginning of the first groove 241 is open. The end of the first groove 241 is provided with a first limiting boss 242.

[0057] A first convex buckle 243 is provided on the outer side of the wall surface of the cylinder 210, and the first convex buckle 243 is provided with a first limiting groove 244 matched with the first limiting boss 242;

[0058] During assembly, the first protrusion 243 enters the first groove body 241 from the beginning of the first groove body 241 and then rotates relatively to move the first protrusion 243 toward the end of the first groove body 241. Finally, the first limiting boss 242 is connected to the first limiting groove 244 to achieve assembly connection.

[0059] refer to Figure 2 , Figure 6 and Figure 7 The air outlet pipe 230 is connected to the end cover 220 via the second rotary buckle structure 25 , and a convenient detachable connection is achieved via the second rotary buckle structure 25 .

[0060] The second rotating buckle structure 25 includes a second groove body 251, a second limiting boss 252, a second convex buckle 253 and a second limiting groove 254;

[0061] A second groove 251 is provided on the inner side of the wall surface of the air outlet 2b of the end cover 220. The second groove 251 extends circumferentially. The beginning of the second groove 251 is open. The end of the second groove 251 is provided with a second limiting boss 252.

[0062] A second convex buckle 253 is disposed on the outer side of the wall surface of the air outlet pipe 230, and the second convex buckle 253 is provided with a second limiting groove 254 matched with the second limiting boss 252;

[0063] During assembly, the second protrusion 253 enters the second groove body 251 from the beginning of the second groove body 251 and then rotates relatively to move the second protrusion 253 toward the end of the second groove body 251. Finally, the second limiting boss 252 is connected to the second limiting groove 254 to achieve assembly connection.

[0064] Assembly process of separation device 2:

[0065] The cylinder 210, the end cover 220 and the air outlet pipe 230 are respectively injection molded, wherein the air outlet pipe 230 is integrally molded with a spiral sheet 211, and then the filter 240 is sleeved on the through hole 23 of the air outlet pipe 230, and then the air outlet pipe 230 is assembled and connected with the end cover 220 through the second screw-on structure 25, and then the cylinder 210 is assembled and connected with the end cover 220 through the first screw-on structure 24, thereby completing the assembly of the separation device 2. Thus, the separation device 2 is assembled from the cylinder 210, the end cover 220, the air outlet pipe 230, the filter 240 and other components, and is assembled through the screw-on structure, which is convenient to manufacture and assemble.

[0066] refer to Figures 8 to 10 The separation device 2 can be applied to a cleaning robot, and the chassis 7 of the cleaning robot is provided with a walking mechanism and a cleaning mechanism. The walking mechanism is provided with wheels to drive the robot to walk; and the cleaning mechanism can clean the surface to be cleaned.

[0067] The air inlet 2a of the separation device 2 can be connected to the dust suction port 4 of the chassis 7 through the first pipe 5, and the air outlet 2b can be connected to the negative pressure generator 3 through the second pipe 6. The negative pressure generator 3 can be a fan or a negative pressure motor to form a negative pressure airflow.

[0068] The separation port 22 of the separation device 2 is connected to the dust box 1, and the dust box 1 is used to store garbage.

[0069] The separation device 2 can be arranged outside or inside the dust box 1 .

[0070] Working principle of separation device 2:

[0071] The negative pressure generator 3 works to form a negative pressure wind flow, and the garbage is sucked from the dust suction port 4 under the action of the negative pressure wind flow and flows to the air inlet 2a of the separation device 2;

[0072] The spiral air duct 21 of the separation device 2 causes the wind flow to flow in a spiral direction, forming a spiral wind flow, and flows along the direction A toward the separation port 22;

[0073] Under the action of centrifugation, the garbage is separated from the separation port 22 and enters the dust collecting box 1;

[0074] The wind flow after separating the garbage flows to the outside.

[0075] Furthermore, the wind flow after separating the garbage flows to the air outlet 230, and flows to the air outlet 2b along the B direction, and finally flows to the outside through the negative pressure generator 3; wherein, the direction of the A direction is opposite to the direction of the B direction. Since the flow directions of the A direction and the B direction are opposite, it is quite difficult for the garbage to move to the B direction under the inertia of the centrifugal force, which effectively causes the garbage to stay in the inner cavity 20 to perform spiral motion or circular motion, and finally separated to the dust box 1, so as to achieve full separation of the garbage.

[0076] Thus, a spiral wind flow is formed by the separation device 2, and the garbage is separated from the wind flow by centrifugal force and collected in the dust box 1, so that the filter can be replaced, the setting of the filter can be saved, and the use cost can be reduced.

[0077] The above disclosure is only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the invention.

Claims

1. A garbage separation device applied to a cleaning robot, characterized in that: It comprises a cylinder (210), an end cover (220) and an air outlet pipe (230); The end cover (220) is assembled at one end of the cylinder (210), and the space formed by the end cover (220) and the cylinder (210) constitutes an inner cavity (20); The air outlet pipe (230) is arranged inside the cylinder (210); A spiral blade (211) is provided on the outer side of one end of the air outlet pipe (230) close to the end cover (220), and the spiral blade (211) is used to form a spiral air duct (21); The end cover (220) is provided with an air inlet (2a) connected to the spiral air duct (21); A separation port (22) is provided on the wall surface of one end of the cylinder (210) away from the end cover (220); A through hole (23) is provided on the wall surface of one end of the air outlet pipe (230) close to the separation port (22); The end cover (220) is provided with an air outlet (2b) connected to the air outlet pipe (230).

2. A garbage separation device for a cleaning robot according to claim 1, characterized in that: The separation port (22) is in the shape of an elongated strip and is circumferentially extended along the wall surface of the cylinder (210).

3. The garbage separation device for a cleaning robot according to claim 1, characterized in that: The air outlet pipe (230) is coaxially arranged with the cylinder (210).

4. The garbage separation device for a cleaning robot according to claim 1, characterized in that: The number of spiral turns of the spiral sheet (211) is equal to or greater than 1.

5. The garbage separation device for a cleaning robot according to claim 1, characterized in that: The through hole (23) is covered with a filter (240).

6. The garbage separation device for a cleaning robot according to claim 1, characterized in that: The end cover (220) is connected to the cylinder (210) via a first screw-on structure (24).

7. The garbage separation device for a cleaning robot according to claim 6, characterized in that: The first rotating buckle structure (24) comprises a first groove body (241), a first limiting boss (242), a first convex buckle (243) and a first limiting groove (244); The first groove body (241) is provided on the inner side of the wall surface of the end cover (220), the first groove body (241) extends circumferentially, the beginning end of the first groove body (241) is open, and the end of the first groove body (241) is provided with a first limiting boss (242); The first convex buckle (243) is provided on the outer side of the wall surface of the cylinder (210), and the first convex buckle (243) is provided with a first limiting groove (244) matched with the first limiting boss (242).

8. The garbage separation device for a cleaning robot according to claim 1, characterized in that: The air outlet pipe (230) is connected to the end cover (220) via a second screw-on structure (25).

9. The garbage separation device used for a cleaning robot according to claim 8, characterized in that: The second rotating buckle structure (25) comprises a second groove body (251), a second limiting boss (252), a second convex buckle (253) and a second limiting groove (254); The inner side of the wall surface of the air outlet (2b) of the end cover (220) is provided with the second groove body (251), the second groove body (251) extends circumferentially, the beginning end of the second groove body (251) is open, and the end end of the second groove body (251) is provided with a second limiting boss (252); The outer side of the wall surface of the air outlet pipe (230) is provided with the second protruding buckle (253), and the second protruding buckle (253) is provided with a second limiting groove (254) matched with the second limiting boss (252).

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