Dampening rotating device and dust collection base station

Abstract

The application provides a damping rotating device, which comprises a rotating shaft fixing frame, a rotating support and a damping structure. In the initial process of turning over a cover, the damping structure is not in contact with the rotating support, and no damping effect is generated between the two. After the rotating shaft fixing frame is turned upward by a certain angle relative to the rotating support, the damping structure is in contact with the rotating support and generates a damping effect. In the initial process of closing the cover, the cover can be slowly turned over and dropped due to the damping effect between the damping structure and the rotating support. When the cover is turned over and dropped by a certain angle, the damping structure is not in contact with the rotating support, the damping effect disappears, and the cover is quickly turned over and dropped. The device reduces the impact force between the cover and the main body of the dust collecting base station, effectively solves the problem that there is no damping feeling between the cover and the main body of the dust collecting base station during turning over in the prior art, and the action is loose, so that the mutual impact force between the cover and the main body is large when the cover is closed with the main body, and the user experience is poor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of smart home devices, in particular to a damping rotating device and a dust collecting base station. BACKGROUND

[0002] With the vigorous development of the sweeping machine industry, the sweeping machine equipped with the base station has become the development trend of the sweeping machine industry. The sweeping machine equipped with the base station can allow the user to clean the garbage only once in a long period of time, greatly reducing the dependence of the sweeping machine on people and the workload of the user, and thus is more and more favored by consumers.

[0003] However, in the existing dust collecting base station, the face cover of the dust collecting base station is mostly simply rotated around the center of the rotating shaft. During the rotation, the action between the face cover and the main body of the dust collecting base station is loose, especially when the face cover is combined with the main body, the mutual impact force between the two is large, and the user experience is poor. SUMMARY

[0004] The damping rotating device and the dust collecting base station provided by the present application aim to solve the problem that in the prior art, the action between the face cover and the main body of the dust collecting base station is loose during the rotation of the face cover, so that when the face cover is combined with the main body, the mutual impact force between the two is large, and the user experience is poor.

[0005] The present application provides a damping rotating device, which is applied to a dust collecting base station of a sweeping machine, comprising: a rotating shaft fixing frame, a rotating support and a damping structure.

[0006] The rotating shaft fixing frame is installed on the base station main body of the dust collecting base station, the rotating support is installed on the face cover of the dust collecting base station, and the rotating shaft fixing frame can rotate relative to the rotating support.

[0007] The damping structure is installed on the rotating shaft fixing frame.

[0008] When the face cover is flipped, in the initial process, the damping structure does not contact the rotating support, and no damping effect is generated between the damping structure and the rotating support. When the rotating shaft fixing frame rotates upward by a certain angle relative to the rotating support, the damping structure contacts the rotating support and generates a damping effect, until the face cover is opened to the maximum angle.

[0009] When the face cover is combined, in the initial process, the damping structure contacts the rotating support and generates a damping effect, thereby causing the rotating support to slowly fall down. When the rotating shaft fixing frame rotates downward by a certain angle relative to the rotating support, the damping structure does not contact the rotating support, and the damping effect between the damping structure and the rotating support disappears, so that the face cover quickly falls down and the combination is completed.

[0010] Preferably, the rotating support is provided with a damping disappearance groove, and the damping structure cooperates with the damping disappearance groove to generate a damping effect or make the damping effect disappear, wherein when the damping structure is in the damping disappearance groove, the damping structure is not in contact with the rotating support, and no damping effect is generated between the damping structure and the rotating support, when the rotating support rotates to make the damping structure out of the damping disappearance groove, the damping structure is in frictional connection with the rotating support, and a damping effect is generated between the damping structure and the rotating support.

[0011] Preferably, the damping structure is a marble assembly, the marble assembly includes a first spring and a marble, the rotating shaft fixing frame is provided with a marble assembly mounting hole, the first spring and the marble are arranged in the marble assembly mounting hole, a first end of the first spring abuts against the bottom of the marble assembly mounting hole, and a second end of the first spring abuts against the marble, when the marble assembly is in the damping disappearance groove, the marble is not in contact with the rotating support, and no damping effect is generated between the marble assembly and the rotating support, when the rotating support rotates to make the marble assembly out of the damping disappearance groove, the rotating support contacts and extrudes the marble, under the rebounding force of the first spring, the marble generates a reaction force on the rotating support to generate a damping effect.

[0012] Preferably, the marble assembly further includes a marble shell, the marble assembly is mounted in the marble assembly mounting hole, the marble shell is internally provided with a movable groove, the first spring and the marble are arranged in the movable groove, and a first end of the first spring abuts against the bottom of the movable groove and a second end of the first spring abuts against the marble.

[0013] Preferably, the marble shell is provided with a limiting ring near one end of the marble, and the diameter of the limiting ring is smaller than the diameter of the marble.

[0014] Preferably, the damping structure is a friction assembly, the friction assembly comprises a friction plate and a second spring, the rotating shaft fixing frame is provided with a friction assembly mounting groove, the friction plate and the second spring are arranged in the friction assembly mounting groove, the first end of the second spring abuts against the bottom of the friction assembly mounting groove, the second end of the second spring is connected with the friction plate, the connection part of the friction plate and the second spring is provided with a receiving hole, the second end of the second spring extends into the receiving hole and is connected with the friction plate, when the friction assembly is in the damping disappearance groove, the friction plate does not contact the rotating support, and the damping effect is not generated between the friction assembly and the rotating support, when the rotating support rotates to make the friction assembly separate from the damping disappearance groove, the rotating support contacts and extrudes the friction plate, under the rebounding force of the second spring, the friction plate forms a reaction force on the rotating support to generate a damping effect.

[0015] Preferably, the friction assembly further comprises a limiting screw, the bottom of the friction assembly mounting groove is provided with a screw hole, the first end of the limiting screw is arranged outside the bottom of the friction assembly mounting groove, the second end of the limiting screw is connected with the friction plate after penetrating through the screw hole, the limiting screw is T-shaped, and the first end of the limiting screw is a large end.

[0016] Preferably, the contact part of the rotating support and the damping structure is provided as a circular arc surface, the circular arc surface is arched towards the damping structure, and when the damping structure separates from the damping disappearance groove, the circular arc surface abuts against the damping structure.

[0017] Preferably, the rotating support is further provided with a rotating angle limiting structure, when the rotating support rotates by a certain angle, the rotating angle limiting structure abuts against the rotating shaft fixing frame, so that the rotating support stops rotating.

[0018] The application also provides a dust collecting base station of a sweeping robot, and the dust collecting base station is provided with the damping rotating device as described in any one of the above.

[0019] The damping rotating device of the application does not contact the rotating support and does not produce damping effect between the two in the initial process of turning over the cover, and the damping structure contacts the rotating support and produces damping effect after the rotating shaft fixing frame is turned upward by a certain angle relative to the rotating support; in the initial process of closing the cover, the cover can be slowly turned over and dropped due to the damping effect between the damping structure and the rotating support, and when the cover is turned over and dropped by a certain angle, the damping structure does not contact the rotating support, the damping effect disappears, and the cover is quickly turned over and dropped, which reduces the impact force between the cover and the dust collection base station main body, effectively solves the problem that the cover and the dust collection base station main body are loose in the process of turning over in the prior art, and thus the mutual impact force between the cover and the main body is large when the cover is closed with the main body, and the user experience is poor. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of a dust collection base station of an embodiment;

[0021] Figure 2 It is an exploded view of a damping rotating device of an embodiment;

[0022] Figure 3 It is a sectional view of a damping rotating device of an embodiment;

[0023] Figure 4 It is an exploded view of a damping rotating device of another embodiment;

[0024] Figure 5 It is a sectional view of a damping rotating device of another embodiment.

[0025] The implementation, functional features and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are merely intended to explain the application, and are not intended to limit the application.

[0027] The technical solutions in the embodiments of the application will be described clearly and completely with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0028] REFERENCE Figure 1 The damping rotating device provided by the application is applied to a dust collection base station of a sweeping machine, and comprises a rotating shaft fixing frame 1, a rotating support 2 and a damping structure 3.

[0029] The rotating shaft fixing frame 1 is installed on the base station main body 5 of the dust collecting base station, the rotating support 2 is installed on the face cover 4 of the dust collecting base station, and the rotating shaft fixing frame 1 can rotate relative to the rotating support 2;

[0030] The damping structure 3 is installed on the rotating shaft fixing frame 1.

[0031] When the face cover 4 is opened, in the initial process, the damping structure 3 does not contact the rotating support 2, and no damping effect is generated between the damping structure 3 and the rotating support 2; when the rotating shaft fixing frame 1 rotates relative to the rotating support 2 by a certain angle, the damping structure 3 contacts the rotating support 2 and generates a damping effect, until the face cover 4 is opened by the maximum angle.

[0032] When the face cover 4 is closed, in the initial process, the damping structure 3 contacts the rotating support 2 and generates a damping effect, so that the rotating support 2 slowly falls; when the rotating shaft fixing frame 1 rotates relative to the rotating support 2 by a certain angle, the damping structure 3 does not contact the rotating support 2, and the damping effect between the damping structure 3 and the rotating support 2 disappears, so that the face cover 4 quickly falls and the closing is completed.

[0033] As described above, in one specific embodiment of the present application, the damping rotation device includes a rotating shaft fixing frame 1, a rotating support 2 and a damping structure 3, wherein the rotating shaft fixing frame 1 is installed in the base station main body 5 of the dust collecting base station of the sweeper by screws or inlaying, and the rotating support 2 can also be installed in the face cover 4 of the dust collecting base station of the sweeper by screws or inlaying; the rotating shaft fixing frame 1 and the rotating support 2 are connected by a rotating shaft, so that the rotating support 2 can rotate relative to the rotating shaft fixing frame 1 to realize the opening and closing actions between the face cover 4 and the base station main body 5; the damping structure 3 is installed on the rotating shaft fixing frame 1, wherein the damping structure 3 can be installed at the middle of the side where the rotating shaft fixing frame 1 is connected with the rotating support 2, or can be installed at both ends of the side where the rotating shaft fixing frame 1 is connected with the rotating support 2; the damping structure 3 can be one or multiple.

[0034] In the closed state, the shaft fixing frame 1 and the shaft support are parallel to each other, and the included angle is 0 degrees; when the cover 4 is flipped, in the initial upward flipping process (a small angle rotation range, for example, 0-15 degrees), the damping structure 3 does not contact the rotating support 2, and the damping structure 3 does not contact the rotating support 2, so in the 0-15 degree rotation range, the damping structure 3 does not produce a damping effect with the rotating support 2, when the shaft fixing frame 1 rotates more than 15 degrees relative to the rotating support 2, the damping structure 3 will contact the rotating support 2, at this time the rotating support 2 will be extruded to the damping structure 3, under the rebounding force of the damping structure 3, the damping structure 3 will generate a reverse force on the rotating support 2, so that the damping structure 3 will be tightly attached to the rotating support 2, when the rotating support 2 rotates, the rotating support 2 needs to overcome the frictional force generated by the contact between the damping structure 3 and the rotating support 2 to rotate, producing a damping effect, until the cover 4 is completely opened. It should be noted that the small rotation range of 0-15 degrees mentioned in the embodiment is only an example, and the specific rotation range can be determined according to the actual situation.

[0035] Similarly, when the cover 4 needs to be closed, during the initial downward flipping process of the cover 4, the damping structure 3 will always be in close contact with the rotating support 2, and the damping effect between the two will occur, under the action of the gravity of the cover 4, the cover 4 overcomes the frictional force between the damping structure 3 and the rotating support 2, so that the rotating support 2 slowly falls without rotating and collapsing, when the shaft fixing frame 1 is flipped downward to an angle of 15 degrees between the cover 4 and the horizontal plane, at this time, the damping structure 3 and the rotating support 2 change from close contact to clearance fit, and the damping structure 3 and the rotating support 2 are not in contact, and the damping effect between the damping structure 3 and the rotating support 2 disappears, therefore, the cover 4 can quickly fall down, and the closing is completed, therefore, the cover 4 is equivalent to start to freely fall from the angle of 15 degrees between the cover 4 and the horizontal plane, and the impact force of the cover 4 on the base station body 5 is much smaller than the impact force of the cover 4 on the base station body 5 when it starts to freely fall, therefore, the base station body 5 and the cover 4 of the dust collecting base station are not easily damaged, and at the same time, it will not cause a large impact sound, improving the user experience during use.

[0036] In one embodiment, referring to the drawings, the rotating support 2 is provided with a damping disappearance groove 21, and the damping structure 3 cooperates with the damping disappearance groove 21 to generate a damping effect or make the damping effect disappear, wherein when the damping structure 3 is in the damping disappearance groove 21, the damping structure 3 does not contact the rotating support 2, and the damping structure 3 and the rotating support 2 do not produce a damping effect, when the rotating support 2 rotates to make the damping structure 3 separate from the damping disappearance groove 21, the damping structure 3 is in frictional connection with the rotating support 2, and the damping structure 3 and the rotating support 2 produce a damping effect.

[0037] As described above, the rotating support 2 is provided with a circular arc surface near the bottom of the rotating shaft fixing frame 1, and the damping disappearance groove 21 is circumferentially arranged at the circular arc surface. The damping disappearance groove 21 is not spread over the entire circular arc surface, but is arranged in a part of the interval of the circular arc surface. When the face cover 4 and the base station main body 5 are in the closing cover state, the damping structure 3 is just in the range of the damping disappearance groove 21 at this time, the damping structure 3 does not contact the rotating support 2, and the damping effect will not be generated between the two. When the face cover 4 is counterclockwise upwardly turned to a certain angle (for example, the face cover 4 is turned 15 degrees from 0 degrees), because it is rotated, the damping structure 3 at this time exceeds the range of the damping disappearance groove 21. At this time, the damping structure 3 will contact the rotating support 2, and the rotating support 2 will extrude the damping structure 3. Under the rebounding force of the damping structure 3 itself, the damping structure 3 generates a reverse force to the rotating support 2, so that the damping structure 3 will be tightly attached to the rotating support 2, and the damping effect is generated. At this time, the rotating support 2 needs to overcome the frictional force generated by the contact with the damping structure 3 to rotate clockwise, until the face cover 4 is opened to the maximum angle.

[0038] When closing the cover, the face cover 4 is counterclockwise downwardly turned. At this time, because the damping structure 3 is out of the range of the damping disappearance groove 21, the damping structure 3 will be tightly attached to the rotating support 2, so that the damping effect is generated between the two. Under the gravity of the face cover 4 and the rotating support 2 itself, the rotating support 2 needs to overcome the frictional force generated by the contact with the damping structure 3 to rotate counterclockwise. In this process, the rotating support 2 will slowly downwardly turn. When the face cover 4 and the rotating support 2 are turned to the position where the angle with the horizontal plane is 15 degrees, the damping structure 3 starts to enter the damping disappearance groove 21. When the damping structure 3 completely enters the range of the damping disappearance groove 21, the damping structure 3 changes from being tightly attached to the rotating support 2 to not contacting each other. The damping structure 3 can no longer be close to the rotating support 2. At this time, the damping effect between the two disappears, so that the face cover 4 can quickly fall from the position where the angle with the horizontal plane is 15 degrees, and the closing cover is completed.

[0039] As a preferred embodiment, the damping disappearance groove 21 is circumferentially arranged from deep to shallow along the circular arc surface. That is, when the face cover 4 and the base station main body 5 are in the closing cover state, the distance between the damping structure 3 and the circular arc surface in the rotating support 2 is the largest. As the face cover 4 is counterclockwise upwardly turned, the distance between the damping structure 3 and the circular arc surface in the rotating support 2 gradually decreases, until the damping structure 3 can be tightly attached to the circular arc surface in the rotating support 2, and the damping effect is generated. In this way, the transition effect of the damping generated between the damping structure 3 and the circular arc surface in the rotating support 2 from large to small (entering the range of the damping disappearance groove 21) or from small to large (leaving the range of the damping disappearance groove 21) can reduce the abrasion between the damping structure 3 and the rotating support 2.

[0040] Referring to the drawings Figure 2 and 3 In one embodiment, the damping structure 3 is a ball assembly, which includes a first spring 31 and a ball 32, and the rotating shaft fixing frame 1 is provided with a ball assembly mounting hole, the first spring 31 and the ball 32 are arranged in the ball assembly mounting hole, the first end of the first spring 31 abuts against the bottom of the ball assembly mounting hole, the second end of the first spring 31 abuts against the ball 32, when the ball assembly is in the damping disappearance groove 21, the ball 32 does not contact the rotating support 2, and no damping effect is generated between the ball assembly and the rotating support 2, when the rotating support 2 rotates to make the ball assembly leave the damping disappearance groove 21, the rotating support 2 contacts and presses the ball 32, under the rebounding force of the first spring 31, the ball 32 forms a reaction force on the rotating support 2 to generate a damping effect.

[0041] As described above, in one specific real-time scenario, the damping structure 3 is a ball assembly, which includes a first spring 31 and a ball 32, and the rotating shaft fixing frame 1 is provided with a ball assembly mounting hole, the diameter of the ball assembly mounting hole is greater than the diameter of the first spring 31 and the ball 32, the first spring 31 and the ball 32 are arranged in the ball assembly mounting hole, and the diameter of the ball 32 should be greater than the inner diameter of the first spring 31 to support the ball 32, wherein when the ball 32 is supported, at least more than half of the ball 32 is exposed to the ball assembly mounting hole, and when the ball assembly is in the damping disappearance groove 21, the ball 32 cannot contact the circular arc surface, and no damping effect is generated between the two, with the clockwise upward rotation of the rotating support 2, when the ball 32 exceeds the range of the damping disappearance groove 21, the ball 32 contacts the circular arc surface, the rotating support 2 presses the ball 32 and the first spring 31, and under the rebounding force of the first spring 31, the ball 32 forms a reaction force on the rotating support 2 to generate a damping effect;

[0042] Similarly, when the cover is closed, the rotating support 2 rotates counterclockwise downward, and since the ball 32 is not in the range of the damping disappearance groove 21 at this time, the ball 32 contacts the circular arc surface, so that a damping effect is generated between the two, which can make the face cover 4 fall slowly, when the rotating support 2 rotates counterclockwise downward to make the ball 32 enter the range of the damping disappearance groove 21, the damping effect between the ball 32 and the circular arc surface gradually disappears at this time, therefore, when the ball 32 enters the range of the damping disappearance groove 21, the face cover 4 can quickly fall back to complete the closing of the cover.

[0043] In one embodiment, the marble assembly further comprises a marble shell 33, the marble assembly is installed in the marble assembly installation hole, the marble shell 33 is internally provided with a movable slot, the first spring 31 and the marble 32 are arranged in the movable slot, the first end of the first spring 31 is abutted against the bottom of the movable slot, and the second end of the first spring 31 is abutted against the marble 32.

[0044] In one embodiment, the marble shell 33 is provided with a limiting ring near one end of the marble 32, and the diameter of the limiting ring is smaller than the diameter of the marble 32.

[0045] As described above, in order to avoid the marble from flying out of the marble assembly installation hole when the marble 32 and the first spring 31 are stretched and contracted, the first spring 31 and the marble 32 are provided with a marble shell 33, the marble shell 33 is internally provided with a movable slot for accommodating the first spring 31 and the marble 32, the marble 32 can move in the movable slot under the action force of the first spring 31 or the rotating support 2, the inner diameter of the marble shell 33 is equal to or slightly larger than the diameter of the marble 32, and the outer diameter of the marble shell 33 should be slightly smaller than or equal to the diameter of the marble assembly installation hole, so that the marble shell 33 can be tightly embedded in the marble assembly installation hole and cannot easily come off, the limiting ring is arranged near one end of the marble shell 33 close to the marble 32, and the diameter of the limiting ring should be slightly smaller than the diameter of the marble 32, so that the marble 32 cannot come off the movable slot, and the marble 32 can be in contact with the rotating support 2 from the part of the marble 32 that is stretched out of the movable slot.

[0046] Referring to the accompanying drawings Figure 4 and 5 In one embodiment, the damping structure 3 is a friction assembly, the friction assembly comprises a friction plate 34 and a second spring 35, the rotating shaft fixing frame 1 is provided with a friction assembly installation slot, the friction plate 34 and the second spring 35 are arranged in the friction assembly installation slot, the first end of the second spring 35 is abutted against the bottom of the friction assembly installation slot, the second end of the second spring 35 is connected with the friction plate 34, the connection part of the friction plate 34 and the second spring 35 is provided with a receiving hole, the second end of the second spring 35 is inserted into the receiving hole and connected with the friction plate 34, when the friction assembly is in the damping disappearance slot 21, the friction plate 34 is not in contact with the rotating support 2, and no damping effect is generated between the friction assembly and the rotating support 2, when the rotating support 2 is rotated to make the friction assembly come off the damping disappearance slot 21, the rotating support 2 is in contact with and presses the friction plate 34, under the rebounding force of the second spring 35, the friction plate 34 forms a reaction force on the rotating support 2 to generate a damping effect.

[0047] As described above, in one specific real-time scenario, the damping structure 3 is a friction assembly, the friction assembly includes a friction plate 34 and a second spring 35, the friction plate 34 and the second spring 35 are arranged in the friction assembly mounting groove provided on the rotating shaft fixing frame 1, the first end of the second spring 35 abuts against the bottom of the friction assembly mounting groove, the first end of the second spring 35 can be fixed on the bottom of the mounting groove, the accommodation hole is provided at the connection between the friction plate 34 and the second end of the second spring 35, the diameter of the accommodation hole should be equal to or slightly larger than the outer diameter of the second spring 35, the second end of the second spring 35 extends into the accommodation hole to connect the second spring 35 with the friction plate 34, the second spring 35 supports the friction plate 34 and makes part of the friction plate 34 exposed outside the friction assembly mounting groove, and when the friction assembly is in the damping disappearance groove 21, the friction plate 34 does not contact the rotating support 2, the friction plate 34 does not contact the circular arc surface, and the damping effect is not generated between the friction plate 34 and the rotating support 2, as the rotating support 2 is turned clockwise and upward, for example, when it is turned 15 degrees, the friction plate 34 will gradually exceed the range of the damping disappearance groove 21 and tightly contact the rotating support 2, at this time, the damping effect is generated between the two, and the rotating support 2 continues to turn against the friction between the two until the face cover 4 is opened to the maximum angle.

[0048] When closing the cover, the rotating support 2 is turned counterclockwise and downward, and when it is initially turned downward, because the friction plate 34 is not in the range of the damping disappearance groove 21, the friction plate 34 tightly contacts the rotating support 2, and the damping effect is generated between the two, under the action of the gravity of the face cover 4 and the rotating support 2, the face cover 4 slowly falls back against the friction between the friction plate 34 and the rotating support 2; when the face cover 4 and the rotating support 2 are turned to an angle of 15° with the horizontal plane, the friction plate 34 begins to enter the range of the damping disappearance groove 21, and the damping effect between the two gradually disappears, when the friction plate 34 completely enters the range of the damping disappearance groove 21, the face cover 4 can quickly fall back to complete closing the cover.

[0049] In one embodiment, the friction assembly further includes a limiting screw 36, the bottom of the friction assembly mounting groove is provided with a screw hole, the first end of the limiting screw 36 is arranged outside the bottom of the friction assembly mounting groove, the second end of the limiting screw 36 is connected with the friction plate 34 after penetrating through the screw hole, the limiting screw 36 is T-shaped, and the first end of the limiting screw 36 is a large end.

[0050] As described above, in order to avoid the friction plate 34 and the second spring 35 from flying out of the friction assembly installation groove when they are stretched and contracted, a limiting screw 36 is added to the friction assembly, a screw hole is arranged at the bottom of the friction assembly installation groove, the first end of the limiting screw 36 is arranged outside the friction assembly installation groove, the limiting screw 36 is T-shaped, the diameter of the first end of the limiting screw 36 is larger than the diameter of the limiting screw 36, the second end of the limiting screw 36 is fixedly connected with the friction plate 34 after passing through the screw hole, under the action of the force of the second spring 35 and the rotating support 2, the limiting screw 36 can move relative to the screw hole, that is, when the rotating support 2 presses the friction plate 34, the limiting screw 36 and the friction plate 34 are pressed and move downward, and under the rebounding action of the second spring 35, the limiting screw 36 and the friction plate 34 move toward the rotating support 2, and the diameter of the first end of the limiting screw 36 is larger than the diameter of the limiting screw 36, so when the limiting screw 36 and the friction plate 34 move toward the rotating support 2, the first end of the limiting screw 36 will abut against the edge of the screw hole when the second spring 35 recovers from deformation, so the friction plate 34 and the second spring 35 will not fly out due to the excessive elasticity of the second spring 35.

[0051] In one embodiment, the contact part between the rotating support 2 and the damping structure 3 is arranged as a circular arc surface, which arches toward the damping structure 3, and when the damping structure 3 is out of the damping disappearance groove 21, the circular arc surface abuts against the damping structure 3.

[0052] As described above, the contact part between the rotating support 2 and the damping structure 3 is arranged as a circular arc surface, which arches toward the damping structure 3, and when the rotating support 2 contacts the damping structure 3, the circular arc surface abuts against the damping structure 3, when the rotating support 2 rotates relative to the rotating shaft fixing frame 1 and the damping structure 3 is not in the range of the damping disappearance groove 21, the circular arc surface and the damping structure 3 generate a friction force therebetween, so that the rotating support 2 and the damping structure 3 generate a damping feeling, and when the damping structure 3 is in the range of the damping disappearance groove 21, the two do not contact, and the damping feeling disappears.

[0053] Referring to the drawings Figure 3 and 5 In one embodiment, the rotating support 2 is further provided with a rotating angle limiting structure 22, which abuts against the rotating shaft fixing frame 1 when the rotating support 2 rotates by a certain angle, so as to stop the rotating support 2 from rotating.

[0054] As described above, the rotating angle limiting structure 22 is arranged on the rotating support 2, when the rotating support 2 is counterclockwise turned up to 90 degrees, the rotating angle limiting structure 22 will abut against the rotating shaft fixing frame 1, at this time, the face cover 4 is opened to the maximum angle, the rotating support 2 is no longer rotated, it is to be understood that in the actual application scenario, the maximum angle of the face cover 4 can be opened can be determined according to the actual situation, when the angle of the face cover 4 is opened is greater than or equal to 90 degrees, under the action of the gravity of the face cover 4 itself and the friction between the rotating support 2 and the damping structure 3, if not affected by external force, the face cover 4 can keep this angle to keep the face cover 4 open and will not automatically fall back, when the cover is needed to be closed, only an initial force is needed to push the face cover 4 back to 90 degrees, under the action of the gravity of the cover itself, the face cover 4 can overcome the friction between the rotating support 2 and the damping structure 3 and slowly fall back, when the damping structure 3 falls into the damping disappearance groove 21, it will quickly fall back.

[0055] With reference to the drawings Figure 1 The application also provides a dust collecting base station of a sweeping robot, wherein the dust collecting base station is provided with the damping rotating device as described in any one of the above.

[0056] It should be noted that all directional indications, such as up, down, left, right, front, back, etc., are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indications will also change accordingly, and the connection can be direct connection or indirect connection.

[0057] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0058] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, any equivalent structure or equivalent process transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A damping rotation device, applied to the dust collection base station of a sweeper, characterized in that: include: Axis fixing frame, rotating bracket and damping structure; The rotating shaft fixing frame is installed on the base station body of the dust collection base station, the rotating bracket is installed on the surface cover of the dust collection base station, and the rotating shaft fixing frame can rotate relative to the rotating bracket; The damping structure is mounted on the rotating shaft fixing frame; When the cover is flipped, in the initial process, the damping structure does not contact the rotating bracket, and no damping effect is generated between the damping structure and the rotating bracket. When the rotating shaft fixing frame rotates upward by a certain angle relative to the rotating bracket, the damping structure contacts the rotating bracket and generates a damping effect until the cover is opened to the maximum angle. When the cover is closed, during the initial process, the damping structure contacts the rotating bracket and produces a damping effect, thereby causing the rotating bracket to fall slowly. When the rotating shaft fixing frame rotates downward by a certain angle relative to the rotating bracket, the damping structure no longer contacts the rotating bracket, and the damping effect between the damping structure and the rotating bracket disappears, causing the cover to fall quickly, completing the closing process. The rotating bracket is provided with a damping vanishing groove, and the damping structure cooperates with the damping vanishing groove to produce a damping effect or eliminate the damping effect. When the damping structure is in the damping vanishing groove, the damping structure does not contact the rotating bracket, and no damping effect is generated between the damping structure and the rotating bracket. When the rotating bracket rotates to disengage the damping structure from the damping vanishing groove, the damping structure is frictionally connected to the rotating bracket, and a damping effect is generated between the damping structure and the rotating bracket. The contact point between the rotating bracket and the damping structure is set as an arc surface, and the arc surface is arched toward the damping structure. When the damping structure is separated from the damping disappearing groove, the arc surface is pressed against the damping structure.

2. The rotation damping device according to claim 1, wherein: The damping structure is a marble assembly, which includes a first spring and a marble. A marble assembly mounting hole is provided on the rotating shaft fixing frame, and the first spring and marble are arranged in the marble assembly mounting hole. The first end of the first spring is abutted against the bottom of the marble assembly mounting hole, and the second end of the first spring is abutted against the marble. When the marble assembly is in the damping disappearance groove, the marble does not contact the rotating bracket, and no damping effect is generated between the marble assembly and the rotating bracket. When the rotating bracket rotates to cause the marble assembly to disengage from the damping disappearance groove, the rotating bracket contacts and squeezes the marble. Under the action of the rebound force of the first spring, the marble forms a reaction force on the rotating bracket to produce a damping effect.

3. The damping rotation device according to claim 2, characterized in that: The marble assembly also includes a marble shell, and the marble assembly is installed in the marble assembly installation hole. A movable groove is provided inside the marble shell, and the first spring and marble are provided in the movable groove. The first end of the first spring abuts against the bottom of the movable groove, and the second end of the first spring abuts against the marble.

4. The rotation damping device according to claim 3, characterized in that: A limiting ring is provided at one end of the marble shell close to the marble, and the diameter of the limiting ring is smaller than the diameter of the marble.

5. The rotation damping device according to claim 1, wherein: The damping structure is a friction assembly, which includes a friction plate and a second spring. A friction assembly mounting groove is provided on the rotating shaft fixing frame, and the friction plate and the second spring are both arranged in the friction assembly mounting groove, the first end of the second spring abuts against the bottom of the friction assembly mounting groove, and the second end of the second spring is connected to the friction plate, and a receiving hole is provided at the connection between the friction plate and the second spring, and the second end of the second spring extends into the receiving hole and is connected to the friction plate. When the friction assembly is in the damping disappearance groove, the friction plate does not contact the rotating bracket, and no damping effect is generated between the friction assembly and the rotating bracket. When the rotating bracket rotates to cause the friction assembly to disengage from the damping disappearance groove, the rotating bracket contacts and squeezes the friction plate. Under the action of the rebound force of the second spring, the friction plate forms a reaction force on the rotating bracket to generate a damping effect.

6. The rotation damping device according to claim 5, characterized in that: The friction assembly also includes a limiting screw, a screw hole is provided at the bottom of the friction assembly mounting groove, the first end of the limiting screw is provided on the outside of the bottom of the friction assembly mounting groove, the second end of the limiting screw passes through the screw hole and is connected to the friction plate, the limiting screw is T-shaped, and the first end of the limiting screw is a large head end.

7. The rotation damping device according to claim 1, wherein: The rotating bracket is further provided with a rotation angle limiting structure. When the rotating bracket rotates to a certain angle, the rotation angle limiting structure abuts against the rotating shaft fixing frame to stop the rotating bracket from rotating.

8. A dust collection base station for a sweeping machine, characterized in that: The dust collection base station is provided with a damping rotation device as described in any one of claims 1 to 7.

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