Dust collection system of cleaning robot

Abstract

A separator of the dust collection system comprises an inner cavity, a spiral air duct, a separation opening, an air inlet and an air outlet, the spiral air duct is arranged at one end of the inner cavity, the separation opening is arranged at the other end of the inner cavity, the starting end of the spiral air duct is communicated with the air inlet, the tail end of the spiral air duct is communicated with the inner cavity, and the air outlet is communicated with the inner cavity; the separator further comprises an acceleration guide surface; the acceleration guide surface can accelerate the flow speed of the spiral air flow; the dust suction port is connected with the air inlet; the dust collection box is connected with the separation port; and the negative pressure generator is connected with the air outlet. The spiral air duct of the separator can form spiral air flow, and the acceleration guide surface can accelerate the flow speed of the spiral air flow, so that the garbage obtains larger centrifugal force, the garbage is separated more quickly and fully, and the garbage separation effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a floor cleaning robot technical field, especially a kind of dust collection system of cleaning robot. BACKGROUND

[0002] Cleaning robot is equipped with dust collection system, it is inhaled by negative pressure air flow and is stored in dust collection box, garbage needs to be separated from air flow, and is stored in dust collection box.

[0003] Part cleaning robot uses filter screen assembly to separate garbage, garbage will be attached on filter screen assembly after filter screen assembly uses for a period of time, increase the resistance of air flow, thereby influence the suction of air flow, therefore, filter screen assembly needs to be replaced regularly, cause higher use cost. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of dust collection system of cleaning robot, the spiral air duct of its separator can form spiral air flow, the flow rate of acceleration guide surface can accelerate spiral air flow, so that garbage obtains greater centrifugal force, to realize garbage faster, more fully separated, improve the separation effect of garbage.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A kind of dust collection system of cleaning robot, comprising:

[0007] Separator, separator includes inner cavity, spiral air duct, separation port, air inlet and air outlet, one end of inner cavity is equipped with spiral air duct, the other end of inner cavity is equipped with separation port, the beginning of spiral air duct is communicated with air inlet, the end of spiral air duct is communicated with inner cavity, air outlet is communicated with inner cavity;

[0008] Separator further includes acceleration guide surface, acceleration guide surface can accelerate the flow rate of spiral air flow;

[0009] Dust suction port, connect with air inlet;

[0010] Dust collection box, connect with separation port;And

[0011] Negative pressure generator, connect with air outlet.

[0012] In some embodiments, acceleration guide surface is arranged in the other end of inner cavity relative to spiral air duct;

[0013] Acceleration guide surface is gradually extended inwards in the direction away from spiral air duct.

[0014] In some embodiments, acceleration guide surface is gradually extended inwards in the direction away from spiral air duct.

[0015] Or acceleration guide surface is gradually extended inwards in the direction away from spiral air duct.

[0016] In some embodiments, the helical angle of the helical duct is equal to or greater than 45 degrees, or the helical angle of the helical duct is equal to or greater than 90 degrees; or the helical angle of the helical duct is equal to or greater than 180 degrees; or the helical angle of the helical duct is equal to or greater than 270 degrees; or the helical angle of the helical duct is equal to or greater than 360 degrees.

[0017] In some embodiments, the separation port is provided on the peripheral wall of the other end of the inner cavity relative to the helical duct, the separation port is in a strip shape, and is provided in a circumferential direction along the peripheral wall of the inner cavity.

[0018] In some embodiments, the separator further comprises an air outlet pipe, the air outlet pipe is provided inside the inner cavity and coaxially arranged with the inner cavity.

[0019] The air outlet is provided at the end of the inner cavity close to the helical duct.

[0020] One end of the air outlet pipe extends in the direction of the separation port and communicates with the inner cavity; the other end of the air outlet pipe communicates with the air outlet.

[0021] In some embodiments, the end of the air outlet pipe close to the separation port is provided with a through hole, and the through hole is covered with a filter element.

[0022] In some embodiments, the separator is provided inside the dust collection box.

[0023] In some embodiments, the two ends of the separator are respectively provided with a first end plate and a second end plate, the first end plate is provided with a first buckle, and the second end plate is provided with a second buckle.

[0024] The dust collection box is provided with an openable and closable door plate, the inner side of the door plate is provided with a first clamping groove and a second clamping groove, the first buckle is matched with the first clamping groove, and the second buckle is matched with the second clamping groove.

[0025] The helical duct of the separator can form a helical air flow, the acceleration guide surface can accelerate the flow rate of the helical air flow, so that the garbage obtains greater centrifugal force, thereby realizing faster and more sufficient separation of the garbage and improving the separation effect of the garbage. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure diagram of the dust collection system of the utility model;

[0027] Figure 2 It is a sectional view of Figure 1

[0028] Figure 3 It is one of the structure diagrams of the separator of the utility model;

[0029] Figure 4 It is an exploded view of the separator of the utility model;​

[0030] Figure 5 is a sectional view of the separator of the utility model;

[0031] Figure 6 is a sectional view of another embodiment of the separator of the utility model;

[0032] Figure 7 is a structure view two of the separator of the utility model;

[0033] Figure 8 is a structure view of the dust collecting box of the utility model;

[0034] Figure 9 is an exploded view one of the dust collecting box of the utility model;

[0035] Figure 10 is an exploded view two of the dust collecting box of the utility model;

[0036] Wherein: 100 - dust collection system;1 - dust collecting box;11 - upper cover;12 - lower cover;121 - rotating shaft;13 - door plate;131 - shaft hole;132 - lock hook;133 - first clamping groove;134 - second clamping groove;2 - separator;2a - air inlet;2b - air outlet;20 - inner cavity;21 - spiral air duct;211 - spiral blade;22 - separation port;23 - air outlet pipe;231 - through hole;24 - filter;25 - acceleration guide surface;2c - first shell;2d - second shell;28 - first end plate;281 - first buckle;29 - second end plate;291 - second buckle;3 - negative pressure generator;4 - dust suction port;5 - first pipeline;6 - second pipeline;200 - bottom disc. DETAILED DESCRIPTION

[0037] The utility model will be further explained in detail below in combination with the drawings.

[0038] Reference Figures 1 to 5 A kind of dust collection system 100 of cleaning robot, comprising:

[0039] Separator 2, separator 2 includes inner cavity 20, spiral air duct 21, separation port 22, air inlet 2a and air outlet 2b;Inner cavity 20 is substantially cylindrical space, one end of inner cavity 20 is equipped with spiral air duct 21, another end of inner cavity 20 is equipped with separation port 22, the beginning of spiral air duct 21 is communicated with air inlet 2a, the end of spiral air duct 21 is communicated with inner cavity 20, air outlet 2b is communicated with inner cavity 20;

[0040] Separator 2 further includes acceleration guide surface 25, acceleration guide surface 25 can accelerate the flow velocity of spiral air flow;

[0041] The dust suction port 4 is connected with the air inlet 2a, and the dust suction port 4 can be connected with the air inlet 2a through the first pipeline 5.

[0042] The dust collecting box 1 is connected with the separation port 22, and

[0043] The negative pressure generator 3 is connected with the air outlet 2b, and the negative pressure generator 3 can be a fan or a negative pressure motor to form a negative pressure airflow, and the negative pressure generator 3 can be connected with the air outlet 2b through the second pipeline 6.

[0044] Therefore, the garbage flows into the spiral air duct 21 of the separator 2 from the dust suction port 4 under the action of the negative pressure airflow, the spiral air duct 21 guides the airflow to flow in a spiral direction, promotes the spiral airflow to flow spirally in the inner cavity 20, forms a spiral airflow, and flows towards the separation port 22. When flowing to the acceleration guide surface 25, the acceleration guide surface 25 promotes the flow rate of the spiral airflow to increase, the garbage obtains a larger centrifugal force, and the garbage is separated from the separation port 22 under the action of the centrifugal force. The separated garbage can be collected in the dust collecting box 1, and the airflow separated from the garbage flows to the air outlet 2b and then to the outside.

[0045] Therefore, the separator 2 can form a spiral airflow, separate the garbage from the airflow by using the centrifugal force, and accelerate the flow rate of the spiral airflow through the acceleration guide surface 25 to promote the garbage to obtain a larger centrifugal force, thereby improving the separation effect of the garbage.

[0046] The separator 2 can replace the filter screen assembly, reduces the use cost of the cleaning robot, and has a good separation effect on the garbage.

[0047] Reference Figure 5 The acceleration guide surface 25 is arranged at the other end of the inner cavity 20, and the acceleration guide surface 25 can be part of the peripheral wall of the inner cavity 20;

[0048] The acceleration guide surface 25 is arranged to gradually extend inward in a direction away from the spiral air duct 21, that is, the acceleration guide surface 25 is arranged to gradually extend inward along the central axis of the inner cavity 20 in a direction away from the spiral air duct 21, so that the space of the end of the inner cavity 20 away from the spiral air duct 21 gradually narrows, thereby promoting the spiral radius of the spiral airflow to gradually decrease, the flow rate of the spiral airflow to gradually increase, and the centrifugal force of the garbage to gradually increase, so that the garbage can be separated from the separation port 22 more quickly, the garbage with a lighter weight can also obtain a sufficient centrifugal force to be separated from the separation port 22, and the separation effect of the garbage is improved.

[0049] The acceleration guide surface 25 is arranged to gradually extend inward in an arc structure; the arc structure can be arranged in a gradually changing curvature manner or a fixed curvature manner, and the acceleration guide surface 25 in the arc structure can promote the spiral radius of the spiral airflow to gradually decrease, the flow rate of the spiral airflow to increase, and the resistance of the spiral airflow to flow towards the separation port 22 to decrease.

[0050] Reference Figure 6 The acceleration guide surface 25 is arranged to gradually extend inwardly in a slant structure. Of course, the acceleration guide surface 25 can also be other structures capable of realizing wind flow acceleration.

[0051] Reference Figure 4 The spiral air duct 21 is used to guide the spiral flow of the wind flow, and the spiral air duct 21 can be arranged at an angle of 0 degrees to 360 degrees, or more than 360 degrees, for example, an angle of about 45 degrees, 90 degrees, 180 degrees, 270 degrees, 360 degrees, etc., as long as the spiral wind flow can be formed. Any form of angle arrangement is applicable.

[0052] The spiral air duct 21 includes a spiral sheet 211, which is used to constitute the spiral air duct 21 to guide the spiral flow of the wind flow. The spiral angle of the spiral sheet 211 is substantially equal to the spiral angle of the spiral air duct 21.

[0053] Reference Figure 4 With Figure 5 The separation port 22 is arranged at the other end of the inner cavity 20, that is, the separation port 22 is arranged at the end of the inner cavity 20 away from the spiral air duct 21. The separation port 22 can be arranged on the peripheral wall or the end wall of the inner cavity 20 away from the spiral air duct 21. Preferably, the separation port 22 can be arranged on the peripheral wall of the inner cavity 20 away from the spiral air duct 21. The garbage will flow along or adhere to the peripheral wall of the inner cavity 20 under the action of the centrifugal force. Therefore, the separation port 22 is arranged on the peripheral wall of the inner cavity 20, and the garbage is more easily and quickly separated from the separation port 22.

[0054] Further, the separation port 22 is in a strip shape and is arranged to extend circumferentially along the peripheral wall of the inner cavity 20. In the process of spiral motion or circular motion, the garbage can have more time and space to separate from the wind flow, the garbage separation is more sufficient, and the garbage separation effect is improved.

[0055] Reference Figure 4 With Figure 5 The separator 2 further includes an air outlet pipe 23, which is arranged inside the inner cavity 20 and coaxially arranged with the inner cavity 20, which is beneficial to reduce the flow resistance of the spiral wind flow, and the structure is also more compact.

[0056] The air outlet 2b is arranged at the end of the inner cavity 20 close to the spiral air duct 21.

[0057] One end of the air outlet pipe 23 extends towards the direction of the separation port 22 and communicates with the inner cavity 20. The other end of the air outlet pipe 23 communicates with the air outlet 2b.

[0058] The spiral airflow flows along direction A to the separation port 22, separating the airflow from the garbage into the air duct 23, and then flows along direction B to the air outlet 2b, finally flowing to the outside. The directions of direction A and direction B are opposite. Because the flow directions of direction A and direction B are opposite, it is quite difficult for the garbage to move towards direction B under the inertia of centrifugal force. This effectively promotes the garbage to remain in the inner cavity 20 and undergo spiral or circular motion, and finally detach from the separation port 22, achieving more complete separation of garbage and improving the garbage separation effect.

[0059] refer to Figure 4 and Figure 5 The air outlet duct 23 is provided with a through hole 231 at the end near the separation port 22. The through hole 231 can be provided on the peripheral wall or end wall of the end of the air outlet duct 23 near the separation port 22, and the through hole 231 is covered by a filter element 24.

[0060] The through-hole 231 can be located on the peripheral wall of the air outlet duct 23. The filter element 24 is annular and can be fitted or snapped onto the air outlet duct 23. The filter element 24 can be made of stainless steel mesh. Thus, the airflow must pass through the filter element 24 before flowing into the air outlet duct 23. Due to the different particle sizes or weights of the waste, the centrifugal force obtained is different. Smaller or lighter waste particles may be distributed in a small amount in the central area of ​​the airflow. In order to further reduce or prevent waste from flowing to the outside, the filter element 24 can be installed to block the waste and make it remain in the inner cavity 20 to continue spiral or circular motion.

[0061] In addition, since there is virtually no or very little debris in the central area of ​​the spiral airflow, and the debris tends to move outward under the action of centrifugal force, the amount of debris adhering to the filter element 24 is small, and the filter element 24 can be used for a long time without frequent replacement.

[0062] refer to Figures 7 to 10 The separator 2 is located inside the dust collection box 1. Of course, the separator 2 can also be located outside the dust collection box 1, depending on the situation.

[0063] refer to Figure 7 The separator 2 has a first end plate 28 and a second end plate 29 at its two ends respectively. The first end plate 28 has a first buckle 281 and the second end plate 29 has a second buckle 291.

[0064] refer to Figure 10 The dust collection box 1 has an openable door panel 13. The inner side of the door panel 13 has a first slot 133 and a second slot 134. A first buckle 281 engages with the first slot 133, and a second buckle 291 engages with the second slot 134. The separator 2 is assembled to the inner side of the door panel 13 by a snap-fit ​​method.

[0065] refer to Figure 9 and Figure 10The dust collecting box 1 comprises an upper cover 11, a lower cover 12 and a door plate 13. One end of the door plate 13 is provided with a shaft hole 131, and the other end of the door plate 13 is provided with a locking hook 132. The lower cover 12 is provided with a rotating shaft 121 matched with the shaft hole 131, and the upper cover 11 can also be provided with the rotating shaft 121, so as to realize the rotatable connection of the door plate 13. The door plate 13 can be opened and closed rotatably, and the separator 2 is assembled on the inner side of the door plate 13, so as to facilitate the assembly and maintenance.

[0066] Reference Figure 4 The separator 2 can be composed of a first shell 2c, a second shell 2d and an air outlet pipe 23. The first shell 2c and the second shell 2d are substantially cylindrical, cup-shaped or cylindrical. The first shell 2c and the second shell 2d form an inner cavity 20. The first shell 2c is provided with an air inlet 2a and an air outlet 2b. The air inlet 2a can be arranged on the peripheral wall of the first shell 2c, and the air outlet 2b can be arranged on the peripheral wall or the end wall of the first shell 2c. The second shell 2d is provided with a separation opening 22 and an acceleration guide surface 25. The acceleration guide surface 25 constitutes part of the peripheral wall of the second shell 2d, so that the second shell 2d gradually narrows or shrinks away from the first shell 2c. One end of the air outlet pipe 23 is provided with a spiral blade 211, and the other end of the air outlet pipe 23 is provided with a through hole 231.

[0067] The first shell 2c and the second shell 2d can be assembled by a screw buckle structure or a fastener. The first shell 2c and the air outlet pipe 23 can also be assembled by a screw buckle structure, a plug-in structure or a fastener. The first shell 2c is provided with a first end plate 28, and the second shell 2d is provided with a second end plate 29.

[0068] A dust collection method, comprising the following steps:

[0069] The negative pressure generator 3 works to form a negative pressure air flow. The garbage is sucked into the separator 2 from the dust suction port 4 under the action of the negative pressure air flow.

[0070] The spiral air duct 21 of the separator 2 promotes the spiral flow of the air flow, forming a spiral air flow. The spiral air flow flows along the A direction in the inner cavity 20 to the separation opening 22.

[0071] The acceleration guide surface 25 promotes the spiral radius of the spiral air flow to gradually decrease, so that the flow rate of the spiral air flow gradually increases.

[0072] The garbage is separated from the separation opening 22 under the action of the centrifugal force and enters the dust collecting box 1.

[0073] The air flow after the garbage is separated flows to the outside.

[0074] Further, the air flow after the garbage is separated flows to the air outlet pipe 23 and flows to the air outlet 2b along the B direction, and finally flows to the outside. The A direction and the B direction are opposite directions.

[0075] Thus, the separator 22 can form a spiral air flow, and use centrifugal force to separate the garbage from the air flow; and the acceleration guide surface 25 accelerates the flow rate of the spiral air flow, so that the garbage obtains greater centrifugal force, and is separated from the separation port 22 more quickly and more fully, thereby further improving the garbage separation effect.

[0076] The above only discloses some embodiments of the present application. For those skilled in the art, without departing from the inventive concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A suction system of a cleaning robot, characterized in that, The utility model relates to a dust collector, and relates to a dust collector comprising: a separator (2) comprising an inner cavity (20), a spiral air duct (21), a separation port (22), an air inlet (2a) and an air outlet (2b), wherein one end of the inner cavity (20) is provided with the spiral air duct (21), the other end of the inner cavity (20) is provided with the separation port (22), the initial end of the spiral air duct (21) is communicated with the air inlet (2a), the terminal end of the spiral air duct (21) is communicated with the inner cavity (20), and the air outlet (2b) is communicated with the inner cavity (20); the separator (2) further comprises an acceleration guide surface (25) capable of accelerating the flow rate of the spiral air flow; a dust suction port (4) connected with the air inlet (2a); a dust collection box (1) connected with the separation port (22); and a negative pressure generator (3) connected with the air outlet (2b).

2. The dust collection system of the cleaning robot according to claim 1, wherein, The acceleration guide surface (25) is arranged at the other end of the inner cavity (20) relative to the spiral air duct (21). The acceleration guide surface (25) is gradually extended inward in a direction away from the spiral air duct (21).

3. The dust collection system of the cleaning robot according to claim 2, wherein, The acceleration guide surface (25) is gradually extended inward in an arc structure. Or the acceleration guide surface (25) is gradually extended inward in an oblique line structure.

4. The dust collection system of the cleaning robot according to claim 1, wherein, The spiral angle of the spiral air duct (21) is equal to or greater than 45 degrees.

5. The dust collection system of the cleaning robot according to claim 1, wherein, The separator (2) further comprises an air outlet pipe (23) arranged inside the inner cavity (20) and coaxially arranged with the inner cavity (20). The air outlet (2b) is arranged at the end of the inner cavity (20) close to the spiral air duct (21). One end of the air outlet pipe (23) is extended in the direction of the separation port (22) and communicated with the inner cavity (20); the other end of the air outlet pipe (23) is communicated with the air outlet (2b).

6. The dust collection system of the cleaning robot according to claim 5, wherein, The end of the air outlet pipe (23) close to the separation port (22) is provided with a through hole (231) covered with a filter element (24).

7. The dust collection system of the cleaning robot according to claim 1, wherein, The separator (2) is arranged inside the dust collection box (1).

8. The dust collection system of the cleaning robot according to claim 7, wherein, Both ends of the separator (2) are respectively provided with a first end plate (28) and a second end plate (29), the first end plate (28) is provided with a first buckle (281), and the second end plate (29) is provided with a second buckle (291). The dust collection box (1) is provided with an openable and closable door plate (13), the inner side of the door plate (13) is provided with a first clamping groove (133) and a second clamping groove (134), the first buckle (281) is matched with the first clamping groove (133), and the second buckle (291) is matched with the second clamping groove (134).

Images