Separator with air flow acceleration structure

Abstract

The utility model discloses a separator with an air flow accelerating structure, which is applied to a cleaning robot and comprises an inner cavity, an air flow accelerating structure and an air flow accelerating structure, the spiral air duct is arranged at one end of the inner cavity, the separation opening is formed in the other end of the inner cavity, the air inlet is communicated with the starting end of the spiral air duct, the air outlet is communicated with the inner cavity, and the acceleration guide face is arranged at the other end of the inner cavity and gradually extends inwards in the direction away from the spiral air duct. The spiral air duct can form spiral air flow, and the acceleration guide surface can accelerate the flow speed of the spiral air flow, so that 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 sweeper robot technical field, especially the separator with wind flow acceleration structure. BACKGROUND

[0002] The cleaning robot is used for cleaning the ground, and garbage is sucked into through negative pressure wind flow and stored in the dust collecting box, and the garbage needs to be separated from the wind flow and stored in the dust collecting box.

[0003] Part of the cleaning robot adopts the filter screen assembly to separate the garbage, and the garbage will be attached to the filter screen assembly after the filter screen assembly is used for a period of time, the resistance of the wind flow is increased, thereby the suction of the wind flow is affected, therefore the filter screen assembly needs to be replaced regularly, and the use cost is higher. UTILITY MODEL CONTENT

[0004] The utility model discloses a separator with wind flow acceleration structure, and the spiral air duct can form spiral wind flow, the acceleration guide surface can accelerate the flow rate of spiral wind flow, so that garbage obtains greater centrifugal force, thereby realizing faster and more sufficient separation of garbage and improving the separation effect of garbage.

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

[0006] The separator with wind flow acceleration structure comprises:

[0007] The inner cavity comprises:

[0008] The spiral air duct is arranged at one end of the inner cavity.

[0009] The separation port is arranged at the other end of the inner cavity.

[0010] The air inlet is in communication with the initial end of the spiral air duct.

[0011] The air outlet is in communication with the inner cavity.

[0012] The acceleration guide surface is arranged at the other end of the inner cavity, and the acceleration guide surface is gradually extended inward in a direction away from the spiral air duct.

[0013] In some embodiments, the acceleration guide surface is gradually extended inward in an arc structure.

[0014] In some embodiments, the acceleration guide surface is gradually extended inward in an oblique line structure.

[0015] In some embodiments, the spiral angle of the spiral air duct is equal to or greater than 45 degrees, or the spiral angle of the spiral air duct is equal to or greater than 90 degrees, or the spiral angle of the spiral air duct is equal to or greater than 180 degrees, or the spiral angle of the spiral air duct is equal to or greater than 270 degrees, or the spiral angle of the spiral air duct is equal to or greater than 360 degrees.

[0016] In some embodiments, the separation port is arranged on the peripheral wall of the other end of the inner cavity relative to the spiral duct.

[0017] In some embodiments, the separation port is in the shape of a long strip and is arranged in a circumferential direction along the peripheral wall of the inner cavity.

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

[0019] In some embodiments, the air outlet is arranged at the end of the inner cavity close to the spiral duct.

[0020] One end of the air outlet pipe extends to the separation port and communicates with the inner cavity, and 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 comprises a cylinder body, an end cover and an air outlet pipe.

[0023] The end cover is assembled at one end of the cylinder body, and the space formed by the end cover and the cylinder body constitutes the inner cavity.

[0024] The air outlet pipe is arranged inside the cylinder body.

[0025] The outer side of the end of the air outlet pipe close to the end cover is provided with a spiral fin for forming a spiral duct.

[0026] The end cover is provided with an air inlet communicating with the starting end of the spiral duct.

[0027] The end of the cylinder body away from the end cover is provided with a separation port.

[0028] The end of the air outlet pipe close to the separation port is provided with a through hole.

[0029] The end cover is provided with an air outlet communicating with the air outlet pipe.

[0030] The end of the cylinder body away from the end cover is provided with an acceleration guide surface.

[0031] In some embodiments, the end cover is connected with the cylinder body through a first screw buckle structure, and the air outlet pipe is connected with the end cover through a second screw buckle structure.

[0032] The separator of the utility model has the advantages that the spiral duct of the separator can form spiral air flow, the acceleration guide surface can accelerate the flow rate of the spiral 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

[0033] Figure 1The structure diagram of the separator of the utility model;

[0034] Figure 2 The exploded view of the separator of the utility model;

[0035] Figure 3 The sectional view of the separator of the utility model;

[0036] Figure 4 The sectional view of another embodiment of the separator of the utility model;

[0037] Figure 5 The structure diagram of the end cover of the utility model;

[0038] Figure 6 The structure diagram of the cylinder of the utility model;

[0039] Figure 7 The structure diagram of the end cover of the utility model;

[0040] Figure 8 The structure diagram of the air outlet pipe of the utility model;

[0041] Figure 9 The structure diagram of the cleaning robot of the utility model;

[0042] Figure 10 The sectional view of the cleaning robot of the utility model;

[0043] Wherein: 1-dust collecting box; 2-separator; 2a-air inlet; 2b-air outlet; 20-inner cavity; 21-spiral air duct; 211-spiral piece; 22-separation opening; 23-air outlet pipe; 231-through hole; 24-filtering piece; 25-acceleration guide surface; 2c-cylinder; 2d-end cover; 26-first rotary buckle structure; 261-first groove body; 262-first limiting boss; 263-first convex buckle; 264-first limiting groove; 27-second rotary buckle structure; 271-second groove body; 272-second limiting boss; 273-second convex buckle; 274-second limiting groove; 3-negative pressure generator; 4-dust suction opening; 5-first pipeline; 6-second pipeline; 200-bottom disc. DETAILED DESCRIPTION

[0044] The utility model will be explained further in detail in combination with the drawings.

[0045] Reference Figures 1 to 3 , the separator 2 with air flow acceleration structure, comprising:

[0046] Inner cavity 20, basically cylindrical space;

[0047] A spiral air duct 21 is arranged at one end of the inner cavity 20; the spiral air duct 21 is used to guide the air flow to flow in a spiral direction, so as to form a spiral air flow;

[0048] A separation port 22 is arranged at the other end of the inner cavity 20; the garbage flows with the spiral air flow and is separated from the separation port 22 under the action of the centrifugal force;

[0049] An air inlet 2a is in communication with the start end of the spiral air duct 21; the garbage flows into the spiral air duct 21 of the separator 2 from the air inlet 2a, and the end of the spiral air duct 21 is in communication with the inner cavity 20;

[0050] An air outlet 2b is in communication with the inner cavity 20; the air flow separated from the garbage flows out of the separator 2 from the air outlet 2b;

[0051] An acceleration guide surface 25 is arranged at the other end of the inner cavity 20; the acceleration guide surface 25 gradually extends inward in a direction away from the spiral air duct 21; it can be understood that the acceleration guide surface 25 gradually extends 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, so as to gradually reduce the spiral radius of the spiral air flow, thereby gradually increasing the flow rate of the spiral air flow, and further increasing the centrifugal force obtained by the garbage, so that the garbage is separated from the separation port 22 more quickly, and the garbage with a lighter weight can also obtain sufficient centrifugal force to be separated from the separation port 22, thereby improving the separation effect of the garbage;

[0052] Therefore, the air flow can be formed by negative pressure, the garbage flows into the spiral air duct 21 from the air inlet 2a under the action of the negative pressure air flow, the spiral air duct 21 causes the air flow to become a spiral air flow and flow towards the separation port 22, and when the spiral air flow flows to the acceleration guide surface 25, the acceleration guide surface 25 causes the flow rate of the spiral air flow 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 a pre-set container, and the air flow separated from the garbage flows to the air outlet 2b and finally flows to the outside. Therefore, the separator 2 can form a spiral air flow, separate the garbage from the air flow by using the centrifugal force, and further increase the flow rate of the spiral air flow by using the acceleration guide surface 25, so as to increase the centrifugal force obtained by the garbage and improve the separation effect of the garbage.

[0053] Reference Figure 3 The acceleration guide surface 25 gradually extends 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 gradually reduce the spiral radius of the spiral air flow, increase the flow rate of the spiral air flow, and also facilitate reducing the resistance of the spiral air flow during the flow process towards the separation port 22.

[0054] ReferenceFigure 4 The acceleration guide surface 25 is arranged to gradually extend inwardly in a slant structure.

[0055] Of course, the acceleration guide surface 25 can also be other structures capable of accelerating the airflow.

[0056] Reference Figure 2 The spiral air duct 21 is used to guide the spiral flow of the airflow, 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 airflow can be formed. Any form of angle arrangement is applicable.

[0057] The spiral air duct 21 includes a spiral fin 211, which is used to constitute the spiral air duct 21 to guide the spiral flow of the airflow, and the spiral angle of the spiral fin 211 is substantially equal to the spiral angle of the spiral air duct 21.

[0058] Reference Figure 2 With Figure 3 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, and 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, and 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.

[0059] 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 airflow, and the garbage separation is more sufficient, thereby improving the garbage separation effect.

[0060] Reference Figure 2 With Figure 3 It also 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 airflow and make the structure more compact.

[0061] The air inlet port 2a is arranged at the end of the inner cavity 20 close to the spiral air duct 21, and the air outlet port 2b is arranged at the end of the inner cavity 20 close to the spiral air duct 21;

[0062] One end of the air outlet pipe 23 extends to the direction of the separation port 22 and communicates with the inner cavity 20, and the other end of the air outlet pipe 23 communicates with the air outlet port 2b;

[0063] Thus, the spiral air flow separates from the separation port 22 along the A-direction, the air flow carrying the garbage flows into the air outlet pipe 23, and then flows to the air outlet 2b along the B-direction, and finally flows to the outside. Since the A-direction and the B-direction are opposite, it is difficult for the garbage to move along the B-direction under the inertia of the centrifugal force, which effectively promotes the garbage to stay in the inner cavity 20 to move spirally or circularly, and finally to separate from the separation port 22, so as to achieve more sufficient separation of the garbage and improve the garbage separation effect.

[0064] The end of the air outlet pipe 23 close to the separation port 22 is provided with a through hole 231, which can be arranged on the peripheral wall or the end wall of the end of the air outlet pipe 23 close to the separation port 22, and the through hole 231 is covered with a filter 24. Preferably, the through hole 231 can be arranged on the peripheral wall of the air outlet pipe 23, and the filter 24 is annular and can be sleeved or clamped on the air outlet pipe 23, and the filter 24 can be made of stainless steel filter screen. Thus, the air flow needs to pass through the filter 24 to flow into the air outlet pipe 23. Since the garbage particles have different sizes or weights, the centrifugal forces obtained are different, and there can be a small amount of garbage with smaller particles or lighter weight distributed in the central region of the air flow. In order to further reduce or prevent the garbage from flowing to the outside, the filter 24 can be arranged to block the garbage and promote the garbage to stay in the inner cavity 20 to continue to move spirally or circularly.

[0065] In addition, since the central region of the spiral air flow is basically free of garbage or has a small amount of garbage, and the garbage tends to move outward under the action of the centrifugal force, the amount of garbage attached to the filter 24 is small, and the filter 24 can be used for a long time without frequent replacement.

[0066] Reference Figure 2 The separator 2 includes a cylinder body 2c, an end cover 2d and an air outlet pipe 23; the cylinder body 2c is substantially cylindrical, cup-shaped or cylindrical;

[0067] The end cover 2d is assembled at one end of the cylinder body 2c, and the space formed by the end cover 2d and the cylinder body 2c constitutes the inner cavity 20;

[0068] The air outlet pipe 23 is arranged inside the cylinder body 2c;

[0069] The outer side of the end of the air outlet pipe 23 close to the end cover 2d is provided with a spiral fin 211, which is used to form the spiral air duct 21;

[0070] The end cover 2d is provided with an air inlet 2a connected to the start end of the spiral air duct 21; the air inlet 2a can be arranged on the peripheral wall of the end cover 2d, and the air inlet 2a can be tangentially connected to the start end of the spiral air duct 21;

[0071] The peripheral wall or the end wall of the end of the cylinder body 2c away from the end cover 2d is provided with a separation port 22;

[0072] The outflow pipe 23 is provided with a through hole 231 on the peripheral wall or end wall of the end close to the separation port 22;

[0073] The end cover 2d is provided with an air outlet 2b connected with the outflow pipe 23; the air outlet 2b can be arranged on the peripheral wall or end wall of the end cover 2d; when the air outlet 2b is arranged on the end wall, the air outlet 2b can be coaxially arranged with the outflow pipe 23.

[0074] The peripheral wall of the end of the barrel 2c away from the end cover 2d is provided with an acceleration guide surface 25; it can be understood that the acceleration guide surface 25 constitutes part of the peripheral wall of the barrel 2c;

[0075] Therefore, the separator 2 is assembled by the barrel 2c, the end cover 2d and the outflow pipe 23, which is beneficial to convenient manufacturing and assembly.

[0076] Reference Figure 5 With Figure 6 The end cover 2d is connected with the barrel 2c through a first screwing structure 26.

[0077] Specifically, the first screwing structure 26 includes a first groove body 261, a first limiting boss 262, a first protruding buckle 263 and a first limiting recess 264.

[0078] The inner side of the peripheral wall of the end cover 2d is provided with the first groove body 261, the first groove body 261 extends circumferentially, the beginning end of the first groove body 261 is open, and the end of the first groove body 261 is provided with the first limiting boss 262.

[0079] The outer side of the peripheral wall of the barrel 2c is provided with the first protruding buckle 263, and the first protruding buckle 263 is provided with the first limiting recess 264 matched with the first limiting boss 262.

[0080] During assembly, the first protruding buckle 263 enters the first groove body 261 from the beginning end of the first groove body 261, then relatively rotates, promotes the first protruding buckle 263 to move to the end of the first groove body 261, and finally the first limiting boss 262 is connected with the first limiting recess 264, realizing convenient assembly connection.

[0081] Reference Figure 7 With Figure 8 The outflow pipe 23 is connected with the end cover 2d through a second screwing structure 27.

[0082] Specifically, the second screwing structure 27 includes a second groove body 271, a second limiting boss 272, a second protruding buckle 273 and a second limiting recess 274.

[0083] The inner side of the peripheral wall of the air outlet 2b of the end cover 2d is provided with the second groove body 271, the second groove body 271 extends circumferentially, the beginning end of the second groove body 271 is open, and the end of the second groove body 271 is provided with the second limiting boss 272.

[0084] The outer side of the peripheral wall of the air outlet pipe 23 is provided with a second protruding buckle 273, which is provided with a second limiting groove 274 matched with the second limiting boss 272.

[0085] During assembly, the second protruding buckle 273 enters the second groove body 271 from the beginning end of the second groove body 271, and then rotates relatively to promote the second protruding buckle 273 to move to the end of the second groove body 271, and finally the second limiting boss 272 is connected with the second limiting groove 274, realizing convenient assembly connection.

[0086] The assembly process of the separator 2 is as follows:

[0087] The cylinder body 2c, the end cover 2d, and the air outlet pipe 23 are respectively injection molded, wherein the air outlet pipe 23 is integrally formed with a spiral fin 211, then the filter element 24 is sleeved on the through hole 231 of the air outlet pipe 23, then the air outlet pipe 23 is assembled and connected with the end cover 2d through the second rotating buckle structure 27, then the cylinder body 2c is assembled and connected with the end cover 2d through the first rotating buckle structure 26, thereby completing the assembly of the separator 2. Thus, the separator 2 is assembled by the cylinder body 2c, the end cover 2d, the air outlet pipe 23, and the filter element 24, and is assembled through the rotating buckle structure, which is convenient for manufacturing and assembling.

[0088] The working principle (garbage separation method) of the separator 2 is as follows:

[0089] The garbage is sucked into the air inlet 2a under the action of negative pressure air flow;

[0090] The spiral fin 211 of the spiral air duct 21 guides the spiral flow of the air flow, forming spiral air flow, and then the spiral air flow flows to the separation port 22 along A direction in the inner cavity 20;

[0091] The acceleration guide surface 25 promotes the spiral radius of the spiral air flow to gradually decrease, causing the flow rate of the spiral air flow to gradually increase;

[0092] The garbage is separated from the separation port 22 under the action of centrifugal force;

[0093] The air flow after the garbage is separated flows into the air outlet pipe 23 through the filter element 24, and flows to the air outlet 2b along B direction, and finally flows to the outside.

[0094] Further, the air flow after the garbage is separated flows into the air outlet pipe 23 through the filter element 24, and flows to the air outlet 2b along B direction, and finally flows to the outside. Since the flow directions of A direction and B direction are opposite, it is quite difficult for the garbage to move in B direction under the inertia of centrifugal force, effectively promoting the garbage to stay in the inner cavity 20 for spiral motion or circular motion, and finally to be separated from the separation port 22, realizing more sufficient separation of the garbage and improving the garbage separation effect.

[0095] Thus, the separator 2 can form a spiral air flow, and separate the garbage from the air flow by centrifugal force; and the flow rate of the spiral air flow is accelerated by the acceleration guide surface 25, so that the garbage obtains greater centrifugal force, and is separated from the separation port 22 more quickly and more sufficiently, thereby further improving the garbage separation effect.

[0096] Reference Figure 9 With Figure 10 The separator 2 can be applied to a cleaning robot, and the bottom plate 200 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.

[0097] The air inlet 2a of the separator 2 can be connected with the dust suction port 4 of the bottom plate 200 through the first pipeline 5, and the air outlet 2b can be connected with the negative pressure generator 3 through the second pipeline 6. The negative pressure generator 3 can be a fan or a negative pressure motor to form a negative pressure air flow.

[0098] The separation port 22 of the separator 2 is connected with the dust collecting box 1, and the dust collecting box 1 is used for storing the garbage.

[0099] The separator 2 can be arranged outside or inside the dust collecting box 1.

[0100] The separator 2 can replace the filter screen assembly, and the filter screen assembly needs to be replaced regularly and is a consumable part. The separator 2 saves the filter screen assembly and is conducive to reducing the use cost of the cleaning robot, and the garbage separation effect is excellent.

[0101] The above only discloses some embodiments of the utility model. For ordinary skilled persons in the art, without departing from the creative concept of the utility model, a number of modifications and improvements can be made, and these all belong to the protection scope of the utility model.

Claims

1. A separator having a wind flow accelerating structure, characterized in that include: Inner cavity (20); A spiral air duct (21) is located at one end of the inner cavity (20); A separation port (22) is located at the other end of the inner cavity (20); The air inlet (2a) is connected to the beginning of the spiral duct (21); An air outlet (2b) is connected to the inner cavity (20); and An acceleration guide surface (25) is provided at the other end of the inner cavity (20), and the acceleration guide surface (25) is provided to extend gradually inward in a direction away from the spiral air duct (21).

2. The separator having a wind flow acceleration structure according to claim 1, wherein The acceleration guide surface (25) is arranged to extend inward in an arc structure.

3. The separator having a wind flow acceleration structure according to claim 1, wherein The acceleration guide surface (25) is arranged to extend inward in a diagonal structure.

4. The separator having a wind flow acceleration structure according to claim 1, wherein The spiral angle of the spiral duct (21) is equal to or greater than 45 degrees.

5. The separator having a wind flow acceleration structure according to claim 1, wherein The separation port (22) is located on the peripheral wall of the inner cavity (20) at the other end relative to the spiral air duct (21).

6. The separator having a wind flow acceleration structure according to claim 5, wherein The separation port (22) is elongated and extends circumferentially along the periphery of the inner cavity (20).

7. The separator having a wind flow acceleration structure according to claim 1, wherein It also includes an air outlet pipe (23), which is located inside the inner cavity (20) and is coaxially arranged with the inner cavity (20); The air outlet (2b) is located at the end of the inner cavity (20) near the spiral air duct (21); One end of the air outlet pipe (23) extends toward the separation port (22) and is connected to the inner cavity (20); the other end of the air outlet pipe (23) is connected to the air outlet (2b).

8. The separator having the wind flow acceleration structure according to claim 7, wherein The air outlet pipe (23) has a through hole (231) at the end near the separation port (22), and the through hole (231) is covered with a filter element (24).

9. The separator having a wind flow acceleration structure according to claim 1, wherein Includes a cylindrical body (2c), an end cap (2d), and an air outlet pipe (23); The end cap (2d) is assembled at one end of the cylinder (2c), and the space formed by the end cap (2d) and the cylinder (2c) constitutes the inner cavity (20); The air outlet pipe (23) is located inside the cylinder (2c); The air outlet pipe (23) has a spiral blade (211) on the outer side of one end near the end cap (2d), and the spiral blade (211) is used to form a spiral air duct (21); The end cap (2d) is provided with an air inlet (2a) that communicates with the beginning of the spiral air duct (21); The end of the cylinder (2c) away from the end cap (2d) is provided with a separation port (22); The air outlet pipe (23) has a through hole (231) at one end near the separation port (22); The end cap (2d) is provided with an air outlet (2b) that is connected to the air outlet pipe (23); The end of the cylinder (2c) away from the end cap (2d) is provided with an acceleration guide surface (25).

10. The separator having a wind flow acceleration structure according to claim 9, wherein The end cap (2d) is connected to the cylinder (2c) via a first screw fastener structure (26); The air outlet pipe (23) is connected to the end cap (2d) via a second screw fastener structure (27).

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