Cyclone type dust collection system and cleaning robot

Abstract

The utility model discloses a whirlwind type dust collection system and cleaning robot, the dust collection system includes dust collection mouth, dust collection box, separator and negative pressure generator, its separator can form spiral wind current, utilize centrifugal force to separate garbage from the wind current and collect in the dust collection box, thus can replace the filter screen, reduce use cost.

Description

Technical Field

[0001] The utility model relates to the technical field of sweeping robots, in particular to a cyclone dust collection system and a cleaning robot. Background Art

[0002] A robot vacuum cleaner includes a vacuum system, which consists of a suction port, a dust collection box, a filter, and a fan. The filter, located between the dust collection box and the fan, blocks waste, preventing it from flowing into the fan. The filter is a consumable component. After a period of use, waste will adhere to the filter, increasing airflow resistance and thus reducing suction. Therefore, the filter needs to be replaced regularly, resulting in high operating costs. Utility Model Content

[0003] The purpose of the utility model is to provide a cyclonic dust collection system and a cleaning robot, wherein the separator can form a spiral wind flow, use centrifugal force to separate garbage from the wind flow and collect it in a dust collection box, thereby replacing the filter screen and reducing the use cost.

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

[0005] A cyclone dust collection system includes a dust collection port, a dust collection box, a separator and a negative pressure generator;

[0006] The separator includes an inner cavity and a spiral air duct, the starting end of the spiral air duct is connected to the dust suction port, and the end of the spiral air duct is connected to the inner cavity; the wall of the inner cavity is provided with a separation port, and the separation port is connected to the dust collection box;

[0007] The inner cavity is communicated with the negative pressure generator.

[0008] In some embodiments, the separation port is in the shape of an elongated strip and extends circumferentially along the wall of the inner cavity.

[0009] In some embodiments, the separator further comprises an air inlet connected to the starting end of the spiral air duct;

[0010] The air inlet is connected to the dust suction port; the dust suction port is provided with a roller.

[0011] In some embodiments, the separator further comprises an air outlet pipe and an air outlet, wherein the air outlet pipe is arranged inside the inner cavity, and the air outlet pipe and the inner cavity are coaxially arranged;

[0012] One end of the air outlet pipe is arranged near the separation port, a through hole is provided on the wall surface of the end of the air outlet pipe near the separation port, the other end of the air outlet pipe is connected to the air outlet, and the air outlet is connected to the negative pressure generator.

[0013] In some embodiments, the through-holes are covered with a filter.

[0014] In some embodiments, the separator is disposed outside the dust box.

[0015] In some embodiments, the separator is disposed inside the dust box.

[0016] In some embodiments, the dust box includes a first cavity and a second cavity, the first cavity is used to store garbage, the second cavity is provided with a spiral air duct and an air outlet pipe, and the wall of the second cavity is provided with a separation port connected to the first cavity.

[0017] A cleaning robot comprises the above-mentioned dust collection system.

[0018] The beneficial effects of the utility model are as follows: the separator can form a spiral wind flow, use centrifugal force to separate garbage from the wind flow and collect it in the dust collection box, thereby replacing the filter screen and reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the first embodiment of the dust collection system of the present utility model;

[0020] Figure 2 This is a structural diagram of the first embodiment of the dust collection system of the present utility model;

[0021] Figure 3 is a cross-sectional view of a first embodiment of the dust collection system of the present invention;

[0022] Figure 4 A structural diagram of a separator of the first embodiment of the dust collection system of the present invention;

[0023] Figure 5 An exploded view of a separator of the first embodiment of the dust collection system of the present invention;

[0024] Figure 6 A cross-sectional view of a separator of a first embodiment of the dust collection system of the present invention;

[0025] Figure 7 This is a structural diagram of a second embodiment of the dust collection system of the present invention;

[0026] Figure 8 This is an exploded view of a second embodiment of the dust collection system of the present invention;

[0027] Figure 9 is a cross-sectional view of a second embodiment of the dust collection system of the present invention;

[0028] Figure 10 is a cross-sectional view of a second embodiment of the dust collection system of the present invention;

[0029] Figure 11 This is a structural diagram of a third embodiment of the dust collection system of the present invention;

[0030] Figure 12 is a cross-sectional view of a third embodiment of the dust collection system of the present invention;

[0031] Figure 13 This is an exploded view of a third embodiment of the dust collection system of the present invention;

[0032] Figure 14 An exploded view of a separator of a third embodiment of the dust collection system of the present invention;

[0033] Figure 15 is a cross-sectional view of a separator of a third embodiment of the dust collection system of the present invention;

[0034] Among them: 100-dust collection system; 1-dust collection box; 1a-first cavity; 1b-second cavity; 2-separator; 2a-air inlet; 2b-air outlet; 20-inner cavity; 21-spiral air duct; 22-separation port; 23-air outlet pipe; 231-through hole; 24-filter element; 3-negative pressure generator; 4-dust collection port; 5-first pipe; 6-second pipe; 200-chassis; 210-drum. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings.

[0036] First embodiment:

[0037] refer to Figures 1 to 6 , a cyclone dust collection system 100, comprising a dust collection port 4, a dust collection box 1, a separator 2 and a negative pressure generator 3;

[0038] The dust suction port 4 can be provided on the chassis 200 , and a roller 210 can be selectively provided at the position of the dust suction port 4 as required, that is, the roller 210 can be provided at the corresponding position of the dust suction port 4 or not.

[0039] refer to Figures 3 to 6 The separator 2 includes an inner cavity 20 and a spiral air duct 21. The starting end of the spiral air duct 21 is connected to the dust suction port 4, and the end of the spiral air duct 21 is connected to the inner cavity 20. The starting end is the upstream direction of the wind flow, and the end is the downstream direction of the wind flow;

[0040] The wall of the inner cavity 20 is provided with a separation port 22, and the separation port 22 is communicated with the dust collecting box 1;

[0041] The inner cavity 20 is connected to the negative pressure generator 3, which can be a negative pressure motor or a fan, and can form a negative pressure air flow;

[0042] refer to Figure 5The spiral air duct 21 has a spiral blade 211 structure, and the wind flow forms a spiral wind flow under the guidance of the spiral blade 211;

[0043] Working principle: garbage is sucked into the suction port 4 under the action of negative pressure airflow, and the spiral air duct 21 causes the airflow to become a spiral airflow and flow toward the separation port 22. Under the action of centrifugal force, the garbage separates from the separation port 22 and enters the dust collecting box 1. The airflow that has separated the garbage flows to the outside through the negative pressure generator 3.

[0044] In this way, the separator 2 can form a spiral wind flow, use centrifugal force to separate the garbage from the wind flow and collect the garbage in the dust box 1, thereby replacing the filter, saving the setting of the filter and reducing the use cost.

[0045] refer to Figure 6 The separation port 22 is located at the end of the inner cavity 20 away from the spiral air duct 21. The airflow moves or moves along the direction A, and the garbage will eventually gather at the end of the inner cavity 20. The separation port 22 is located at the end position to promote more complete separation of the garbage and be collected in the dust box 1.

[0046] refer to Figure 4 and Figure 6 The separation opening 22 is in the shape of an elongated strip and extends circumferentially along the wall of the inner cavity 20. In this way, the garbage can have more time and space to separate from the wind flow during the spiral motion or circular motion, and the garbage separation is more complete and the separation efficiency is higher.

[0047] refer to Figures 4 to 6 The separator 2 can be cylindrical, cup-shaped or cylindrical, and its inner cavity 20 is naturally cylindrical, cup-shaped or cylindrical; the spiral air duct 21 can be arranged inside the inner cavity 20, for example, the spiral air duct 21 is arranged at one end of the inner cavity 20, and the separation port 22 is arranged at the other end of the inner cavity 20; the spiral blades 211 of the spiral air duct 21 abut against the wall of the inner cavity 20, so that the spiral radius of the spiral air duct 21 is basically the same as the radius of the inner cavity 20, reducing wind resistance, making the flow smoother, and convenient to manufacture.

[0048] The separator 2 also includes an air inlet 2a, which is tangentially connected to the starting end of the spiral air duct 21, which helps to reduce wind resistance and make the flow smoother;

[0049] refer to Figure 3 The air inlet 2a can be connected to the dust suction port 4 through the first pipe 5, or the air inlet 2a can be directly connected to the dust suction port 4.

[0050] refer to Figure 5 and Figure 6 , the separator 2 further includes an air outlet pipe 23 and an air outlet 2b, the air outlet pipe 23 is arranged inside the inner cavity 20, and the air outlet pipe 23 and the inner cavity 20 are coaxially arranged;

[0051] One end of the air outlet duct 23 is positioned near the separation port 22, extending toward the separation port 22. A through hole 231 is provided on the wall of the end of the air outlet duct 23 near the separation port 22. The other end of the air outlet duct 23 is connected to the air outlet 2b, which is connected to the negative pressure generator 3. The air outlet 2b can be connected to the negative pressure generator 3 via a second pipe 6. In this way, the airflow that has separated the garbage flows from the air outlet duct 23 to the air outlet 2b, and then flows through the negative pressure generator 3 to the outside.

[0052] refer to Figure 6 The spiral airflow flows along direction A toward the separation port 22. The airflow that has separated the garbage flows into the air outlet duct 23 and flows along direction B to the air outlet 2b before finally flowing to the outside. Directions A and B are in opposite directions. In this way, under the action of centrifugal force, the garbage moves closer to the wall of the inner cavity 20. The airflow in the central area is essentially free of garbage, and the airflow in the central area flows toward the air outlet duct 23, ensuring that the garbage is effectively separated into the dust collection box 1. Furthermore, the flow directions of directions A and B are opposite, making it quite difficult for the garbage to move toward direction B under the inertia of centrifugal force. This effectively forces the garbage to remain in the inner cavity 20 and move in a spiral or circular motion before finally being separated into the dust collection box 1, achieving complete garbage separation.

[0053] In addition, the air outlet pipe 23 and the inner cavity 20 are coaxially arranged, and the other end of the air outlet pipe 23 is extended in the direction close to the spiral air duct 21. The spiral air duct 21 can be arranged around the end of the air outlet pipe 23 to make the structure more compact.

[0054] refer to Figure 5 and Figure 6 The through hole 231 is covered with a filter 24. Airflow must pass through the filter 24 before entering the air outlet duct 23. The filter 24 can be annular and can be fitted or snapped onto the air outlet duct 23. Because the centrifugal force applied varies depending on the particle size or weight of the waste, a small amount of smaller or lighter waste may be distributed in the center of the airflow. To further reduce or prevent the waste from escaping, the filter 24 can be installed to block the waste, forcing it to remain in the inner cavity 20 and continue its spiral or circular motion.

[0055] In addition, since there is basically no garbage or very little garbage in the central area of ​​the airflow, and the garbage tends to move outward under the action of centrifugal force, the amount of garbage attached to the filter element 24 is small, and the filter element 24 can be used for a long time without frequent replacement.

[0056] refer to Figure 1 and Figure 2 , the separator 2 can be arranged outside the dust box 1. The separator 2 and the dust box 1 are split structures or modular structures. The separator 2 and the dust box 1 are made separately and then assembled together. The separator 2 can be arranged on the outside of the top of the dust box 1.

[0057] Second embodiment:

[0058] refer to Figures 7 to 10 The dust collection system 100 of the second embodiment has basically the same structure and principle as the first embodiment, except that the separator 2 is arranged inside the dust box 1, and the separator 2 and the dust box 1 are an integral structure, which can be understood as a shared structure between the separator 2 and the dust box 1.

[0059] Specifically, the dust box 1 is provided with two cavities, namely the first cavity 1a and the second cavity 1b. The two cavities can be integrally formed in the injection molding process. The first cavity 1a is used to collect and store garbage, and the second cavity 1b constitutes the inner cavity 20 of the separator 2. The spiral air duct 21, the air outlet pipe 23 and the filter element 24 and other parts are assembled in the second cavity 1b. The wall of the second cavity 1b is provided with a separation port 22 connected to the first cavity 1a, so that the space of the second cavity 1b is used to form the separator 2.

[0060] Preferably, the dust box 1 can be tilted to save space. The corresponding spiral air duct 21 is located at the bottom of the inner cavity 20, and the separation port 22 is located at the top of the inner cavity 20, so that the dust box 1 can store more garbage.

[0061] Third embodiment:

[0062] refer to Figures 11 to 15 The dust collection system 100 of the third embodiment has basically the same structure and principle as the first embodiment, except that the separator 2 is arranged inside the dust box 1, and the separator 2 and the dust box 1 are split structures or modular structures. The separator 2 and the dust box 1 are manufactured separately and then assembled together.

[0063] The connection mode and position relationship between the separator 2 and the dust box 1 in the above three embodiments can be selectively set according to different working conditions, for example:

[0064] For large cleaning robots, the space of the dust box 1 is relatively large, and the first embodiment can be adopted, in which the separator 2 is arranged outside the dust box 1; of course, a split structure or an integral structure can be adopted.

[0065] For a medium-sized cleaning robot, the space of the dust box 1 is medium, and the second embodiment can be adopted. The separator 2 is arranged inside the dust box 1 and is designed as an integral structure. Of course, it can also be designed as a split structure.

[0066] For a small cleaning robot, the space of the dust box 1 is small, and the third embodiment can be adopted, in which the separator 2 is arranged inside the dust box 1 , and of course it can also be arranged outside the dust box 1 .

[0067] Fourth embodiment:

[0068] A cleaning robot includes the above-mentioned vacuum system 100. The robot chassis 200 is provided with a walking mechanism and a cleaning mechanism. The walking mechanism is provided with wheels to drive the robot to walk; the cleaning mechanism can clean the surface to be cleaned.

[0069] Fifth embodiment:

[0070] A dust collection method, comprising the following steps:

[0071] The negative pressure generator 3 works to generate negative pressure airflow, and the garbage is sucked in from the suction port 4 under the action of the negative pressure airflow and flows to the separator 2;

[0072] The spiral air duct 21 of the separator 2 causes the airflow to flow in a spiral direction, forming a spiral airflow, 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 collection box 1;

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

[0075] Furthermore, the airflow after separating the garbage flows to the air outlet pipe 23, flows along the B direction to the air outlet 2b, and finally flows to the outside through the negative pressure generator 3; wherein, the directions of A and B are opposite.

[0076] Thus, a spiral wind flow is formed by the separator 2, and the garbage is separated from the wind flow by centrifugal force and collected in the dust box 1, thereby replacing the filter, saving the setting of the filter and reducing the use cost.

[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 inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A cyclonic dust collection system, characterized in that: It comprises a dust suction port (4), a dust collection box (1), a separator (2) and a negative pressure generator (3); The separator (2) comprises an inner cavity (20) and a spiral air duct (21); the starting end of the spiral air duct (21) is communicated with the dust suction port (4); the end of the spiral air duct (21) is communicated with the inner cavity (20); a separation port (22) is provided on the wall of the inner cavity (20); and the separation port (22) is communicated with the dust collection box (1); The inner cavity (20) is communicated with the negative pressure generator (3).

2. A cyclone dust collection system according to claim 1, characterized in that: The separation opening (22) is provided at the end of the inner cavity (20) away from the spiral air duct (21), and the separation opening (22) is in the shape of an elongated strip and is circumferentially extended along the wall surface of the inner cavity (20).

3. A cyclone dust collection system according to claim 2, characterized in that: The spiral air duct (21) is arranged inside the inner cavity (20); The separator (2) further comprises an air inlet (2a), wherein the air inlet (2a) is connected to the starting end of the spiral air duct (21); The air inlet (2a) is communicated with the dust suction port (4).

4. A cyclone dust collection system according to claim 1, characterized in that: The separator (2) further comprises an air outlet pipe (23) and an air outlet (2b), wherein the air outlet pipe (23) is arranged inside the inner cavity (20), and the air outlet pipe (23) and the inner cavity (20) are coaxially arranged; One end of the air outlet pipe (23) is arranged near the separation port (22); a through hole (231) is provided on the wall surface of the end of the air outlet pipe (23) near the separation port (22); the other end of the air outlet pipe (23) is connected to the air outlet (2b); and the air outlet (2b) is connected to the negative pressure generator (3).

5. A cyclone dust collection system according to claim 4, characterized in that: The through hole (231) is covered with a filter element (24).

6. The cyclone dust collection system according to claim 1, characterized in that: The separator (2) is arranged outside the dust collecting box (1).

7. The cyclone dust collection system according to claim 1, characterized in that: The separator (2) is arranged inside the dust collecting box (1).

8. A cyclonic dust collection system according to claim 7, characterized in that: The dust collecting box (1) comprises a first cavity (1a) and a second cavity (1b); the first cavity (1a) is used for storing garbage; the second cavity (1b) is provided with the spiral air duct (21) and the air outlet pipe (23); and the wall surface of the second cavity (1b) is provided with a separation port (22) communicating with the first cavity (1a).

9. A cleaning robot, characterized in that: The dust collection system (100) comprises the dust collection system (100) according to any one of claims 1 to 8.

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