CN216167243U - Lifting device and cleaning robot - Google Patents
Lifting device and cleaning robot Download PDFInfo
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- CN216167243U CN216167243U CN202122493940.7U CN202122493940U CN216167243U CN 216167243 U CN216167243 U CN 216167243U CN 202122493940 U CN202122493940 U CN 202122493940U CN 216167243 U CN216167243 U CN 216167243U
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Abstract
The utility model relates to the technical field of cleaning equipment, and provides a lifting device and a cleaning robot, wherein the lifting device comprises a lifting mechanism and a driver; the lifting mechanism comprises a shell, a shaft sleeve and a lifting rotating shaft, wherein the shell is provided with a rotating cavity and is relatively fixedly arranged with the driver; the shaft sleeve is provided with a lifting cavity and can be rotatably arranged in the rotating cavity, the inner wall of the shaft sleeve is provided with a spiral part, the spiral part extends spirally along the axis of the shaft sleeve, and two ends of the spiral part are both provided with limit ends; the lifting rotating shaft and the shaft sleeve are coaxially arranged in the lifting cavity, the output end of the driver is connected with the lifting rotating shaft to drive the lifting rotating shaft to rotate along the first rotating direction or the second rotating direction, and the outer wall of the lifting rotating shaft is provided with a butting portion which is butted on the spiral portion. The cleaning robot adopting the lifting device can realize the lifting function of the ground cleaning function and the cleaning piece only by adopting one driver, has compact structure, can effectively reduce the volume and can effectively improve the practicability.
Description
Technical Field
The utility model relates to the technical field of cleaning equipment, and particularly provides a lifting device and a cleaning robot.
Background
The sweeping and mopping integrated robot is a cleaning robot with sweeping and mopping functions, has the characteristics of convenience in cleaning, time saving and labor saving, enables people to get rid of tedious housework, and greatly improves the life convenience of people.
However, when cleaning robot is at the during operation, if floor laid the carpet, cleaning robot removes and to make the carpet dirty by the spot on the mop on the carpet, and cleaning robot passes through a period of work after moreover, can adhere a large amount of filths on the mop, if let cleaning robot continue to work, not only can not play cleaning effect, can bring secondary pollution to ground on the contrary.
In view of this, cleaning robots with a mop lifting function are available on the market, but such cleaning robots need to be provided with at least two drivers, one driver is used for driving a mop to perform cleaning work, and the other driver is used for driving the mop to perform lifting motion, but the size of the cleaning robot is increased due to the adoption of the structure, so that the cleaning robot cannot enter a narrow space to perform cleaning work, and the practicability is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lifting device and a cleaning robot, and aims to solve the technical problems that a cleaning robot with a mop lifting function in the prior art is large in size and poor in practicability.
In order to achieve the purpose, the embodiment of the utility model adopts the technical scheme that: a lifting device can be applied to a cleaning robot to drive a cleaning piece of the cleaning robot to do lifting motion, and comprises a lifting mechanism and a driver; the lifting mechanism comprises:
a housing having a rotation cavity and fixedly disposed relative to the driver;
the lifting mechanism comprises a shaft sleeve, a lifting mechanism and a driving mechanism, wherein the shaft sleeve is provided with a lifting cavity and is rotatably arranged in the rotating cavity, the inner wall of the shaft sleeve is provided with a spiral part, the spiral part extends spirally along the axis of the shaft sleeve, and two ends of the spiral part are both provided with limiting ends;
the lifting rotating shaft is coaxially arranged in the lifting cavity with the shaft sleeve, the output end of the driver is connected with the lifting rotating shaft so as to drive the lifting rotating shaft to rotate along a first rotating direction or a second rotating direction opposite to the first rotating direction, and the outer wall of the lifting rotating shaft is provided with a butting part which butts against the spiral part; when the lifting rotating shaft rotates along the first rotating direction, the abutting portion moves towards the direction far away from the driver along the extending direction of the spiral portion, and when the lifting rotating shaft rotates along the second rotating direction, the abutting portion moves towards the direction close to the driver along the extending direction of the spiral portion.
The lifting device provided by the embodiment of the utility model at least has the following beneficial effects: the shaft sleeve is rotatably arranged in the rotating cavity of the shell, the lifting rotating shaft is arranged in the lifting cavity of the shaft sleeve, and the abutting part of the lifting rotating shaft abuts against the spiral part of the shaft sleeve; when the ground needs to be cleaned, the driver drives the lifting rotating shaft to rotate along the first rotating direction, the abutting part moves towards the direction far away from the driver along the extending direction of the spiral part until the abutting part abuts against the limiting end, far away from the driver, of the spiral part, so that the shaft sleeve rotates along with the lifting rotating shaft, and at the moment, the cleaning piece descends along with the lifting rotating shaft to be in contact with the ground and rotates along with the lifting rotating shaft, so that the purpose of cleaning the ground is achieved; when the cleaning piece needs to be lifted, the driver drives the lifting rotating shaft to rotate along the second rotating direction, the abutting part moves towards the direction close to the driver along the extending direction of the spiral part until the abutting part abuts against the limiting end, close to the driver, of the spiral part, and at the moment, the cleaning piece rises along with the lifting rotating shaft, so that the cleaning piece is separated from the ground; therefore, the cleaning robot adopting the lifting device can realize the ground cleaning function and the lifting function of the cleaning piece by only adopting one driver, has compact structure, can effectively reduce the volume and can effectively improve the practicability.
In one embodiment, the outer wall of the shaft sleeve is provided with a first limiting portion, and the lifting mechanism further comprises an elastic limiting component, wherein the elastic limiting component is matched with the first limiting portion to limit the shaft sleeve to rotate along a second rotating direction.
In one embodiment, a transitional connection structure is arranged on the outer wall of the shaft sleeve and is used for connecting one side, facing the first rotation direction, of the first limiting part; the elastic limiting assembly comprises a limiting part and a first elastic part, one end of the limiting part is used for abutting against one side, facing the second rotating direction, of the first limiting part, and the first elastic part is used for providing thrust, pointing to the shaft sleeve, for the limiting part.
In one embodiment, the transitional connection structure is an involute structure.
In one embodiment, the limiting member is slidably mounted in the housing.
In one embodiment, the lifting device further includes a bearing, and the bearing is installed in the rotating cavity and sleeved outside the shaft sleeve.
In one embodiment, the outer wall of the shaft sleeve is provided with a second limiting part, and the second limiting part is used for abutting against the end surface of the bearing.
In one embodiment, the spiral portion is a spiral groove or a spiral flange.
In one embodiment, the lifting device further comprises a second elastic member for providing a pushing force directed to the cleaning member to the lifting rotating shaft.
In one embodiment, the number of the spiral parts is at least two, the number of the abutting parts is at least two, the spiral parts are arranged in parallel, and the abutting parts and the spiral parts are arranged in one-to-one correspondence.
In one embodiment, the driver has two output ends, the number of the lifting mechanisms is two, and the lifting rotating shafts of the lifting mechanisms are connected with the output ends in a one-to-one correspondence manner.
In one embodiment, a shaft connecting cavity is arranged at one end of the lifting rotating shaft, the cross section of the shaft connecting cavity and the cross section of the output end are both in non-circular structures, and the output end is inserted into the shaft connecting cavity and in clearance fit with the cavity wall of the shaft connecting cavity.
In order to achieve the above object, the present invention further provides a cleaning robot, including a cleaning member and the lifting device of any one or more of the above embodiments, wherein an end of the lifting rotating shaft of the lifting device, which is far away from the driver of the lifting device, is connected to the cleaning member.
Since the cleaning robot employs all embodiments of the lifting device, at least all beneficial effects of the embodiments are achieved, and no further description is given here.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cleaning robot according to an embodiment of the present invention;
fig. 2 is an exploded view of a lifting mechanism in the cleaning robot shown in fig. 1;
FIG. 3 is a schematic structural view of a bushing in the lifting mechanism of FIG. 2;
FIG. 4 is a top view of the bushing shown in FIG. 3;
FIG. 5 is a schematic structural view of a lifting shaft of the lifting mechanism shown in FIG. 2;
fig. 6 is a schematic structural view of a lifting mechanism in the cleaning robot of fig. 1;
FIG. 7 is a cross-sectional view of the elevator mechanism of FIG. 6 taken along the line A-A;
fig. 8 is a structural view illustrating an operation state of the lifting mechanism in the cleaning robot of fig. 1;
fig. 9 is a schematic structural view illustrating another operation state of the lifting mechanism in the cleaning robot of fig. 1.
Wherein, in the figures, the respective reference numerals:
100. a cleaning robot; 110. a lifting device; 111. a lifting mechanism; 1111. a housing; 11111. a rotation chamber; 1112. a shaft sleeve; 11121. a lifting cavity; 11122. a spiral portion; 11123. a first limiting part; 11124. a transitional connection structure; 11125. a second limiting part; 1113. a lifting rotating shaft; 11131. an abutting portion; 11132. a shaft coupling cavity; 11133. a connecting portion; 1114. an elastic limit component; 11141. a limiting member; 11142. a first elastic member; 1115. a second elastic member; 1116. a bearing; 112. a driver; 120. a cleaning member.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the correlation technique, in order to avoid the barrier and avoid causing secondary pollution to ground, the cleaning robot who possesses mop raising and lowering functions has appeared on the market, but this kind of cleaning robot need adopt two at least drivers, and one of them driver is used for driving the mop and carries out cleaning work, and another driver is used for driving the mop and is elevating movement, adopts such structure can lead to cleaning robot's volume increase for cleaning robot can't get into constrictive space and carry out cleaning work, and the practicality descends by a wide margin.
In view of this, the first aspect of the present invention provides a lifting device 110, which can be applied to a cleaning robot 100 to drive a cleaning member 120 of the cleaning robot 100 to perform a lifting motion, wherein the cleaning member 120 includes, but is not limited to, a mop, a brush, etc.
The above-mentioned lifting device 110 will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the lifting device 110 includes a lifting mechanism 111 and a driver 112. The lifting mechanism 111 comprises a shell 1111, a shaft sleeve 1112 and a lifting rotating shaft 1113; the output ends of the shaft sleeve 1112, the lifting rotating shaft 1113 and the driver 112 are coaxially arranged; the housing 1111 has a rotating chamber 11111 and is fixedly disposed opposite to the driver 112, and it can be understood that the housing 1111 may be fixedly connected to the driver 112 or fixedly installed on the body (not shown) of the cleaning robot 100 together with the driver 112; the shaft sleeve 1112 is provided with a lifting cavity 11121 and can be rotatably arranged in the rotating cavity 11111, the inner wall of the shaft sleeve 1112 is provided with a spiral part 11122, the spiral part 11122 extends spirally along the axis of the shaft sleeve 1112, and two ends of the spiral part 11122 are both provided with limit ends; the lifting rotating shaft 1113 is arranged in the lifting cavity 11121, the output end of the driver 112 is connected with the lifting rotating shaft 1113 to drive the lifting rotating shaft 1113 to rotate along a first rotating direction X or a second rotating direction Y, the second rotating direction Y is opposite to the first rotating direction X, the outer wall of the lifting rotating shaft 1113 is provided with a butting part 11131, the butting part 11131 butts against the spiral part 11122, and as can be understood, the butting part 11131 butts against one side of the spiral part 11122 opposite to the driver 112 to support the lifting rotating shaft 1113; when the lifting rotating shaft 1113 rotates in the first rotating direction X, the abutting portion 11131 moves in the direction away from the driver 112 along the extending direction of the spiral portion 11122, and when the lifting rotating shaft 1113 rotates in the second rotating direction Y, the abutting portion 11131 moves in the direction approaching the driver 112 along the extending direction of the spiral portion 11122.
In order to improve the compactness of the lifting device 110, the speed reduction motor is adopted as the driver 112, and of course, the type of the driver 112 includes various types, such as a high speed motor, a constant speed motor, and the like, and is not limited in detail herein.
The working principle of the lifting device 110 is as follows:
as shown in fig. 8, when the floor needs to be cleaned, the driver 112 drives the lifting rotating shaft 1113 to rotate along the first rotating direction X, and the abutting portion 11131 moves along the extending direction of the spiral portion 11122 toward the direction away from the driver 112 until the abutting portion 11131 abuts on the limit end of the spiral portion 11122 away from the driver 112, so that the bushing 1112 rotates along with the lifting rotating shaft 1113, and at this time, the cleaning member 120 descends along with the lifting rotating shaft 1113 to contact with the floor and rotates along with the lifting rotating shaft 1113, so as to clean the floor;
as shown in fig. 9, when the cleaning member 120 needs to be lifted, the driver 112 drives the lifting rotating shaft 1113 to rotate along the second rotating direction Y, and the abutting portion 11131 moves towards the direction close to the driver 112 along the extending direction of the spiral portion 11122 until the abutting portion 11131 abuts on the limit end of the spiral portion 11122 close to the driver 112, at this time, the cleaning member 120 is lifted along with the lifting rotating shaft 1113 to separate the cleaning member 120 from the floor.
Therefore, the cleaning robot 100 using the lifting device 110 can realize the floor cleaning function and the lifting function of the cleaning member 120 only by using one driver 112, has a compact structure, can effectively reduce the size, and can effectively improve the practicability.
In one embodiment, please refer to fig. 3 and 4, the outer wall of the shaft sleeve 1112 is provided with a first limiting portion 11123, and the lifting mechanism 111 further includes an elastic limiting component 1114, wherein the elastic limiting component 1114 cooperates with the first limiting portion 11123 to limit the rotation of the shaft sleeve 1112 along the second rotation direction Y.
Specifically, as shown in fig. 3 and fig. 4, a transitional connection structure 11124 is disposed on an outer wall of the shaft sleeve 1112, and the transitional connection structure 11124 is used to connect one side of the first limiting portion 11123 facing the first rotation direction X (i.e., a side of the shaft sleeve 1112 facing the wind when rotating along the first rotation direction X, which is hereinafter referred to as a first side); as shown in fig. 2, fig. 6 and fig. 7, the elastic limiting assembly 1114 includes a limiting member 11141 and a first elastic member 11142, one end of the limiting member 11141 is configured to abut against one side of the first limiting portion 11123 facing the second rotation direction Y (i.e. a side of the first limiting portion 11123 facing the wind when the shaft sleeve 1112 rotates along the second rotation direction Y, hereinafter referred to as a second side), and the first elastic member 11142 is configured to provide a pushing force to the limiting member 11141 and toward the shaft sleeve 1112, and it can be understood that the first elastic member 11142 includes, but is not limited to, a spring and an elastic sheet.
Specifically, as shown in fig. 7, one end of the first elastic member 11142 abuts against one end of the stopper 11141, and the other end abuts against the inner wall of the housing 1111, and under the elastic action of the first elastic member 11142, the other end of the stopper 11141 is kept in abutment against the outer peripheral wall of the bushing 1112 at the same height as the first stopper 11123.
As shown in fig. 8, when the driver 112 drives the lifting rotating shaft 1113 to rotate along the first rotating direction X, the abutting portion 11131 moves along the extending direction of the spiral portion 11122 toward the direction away from the driver 112 until the abutting portion 11131 abuts on the limit end of the spiral portion 11122 away from the driver 112, so that the shaft sleeve 1112 rotates along with the lifting rotating shaft 1113 along the first rotating direction X, at this time, the lifting rotating shaft 1113 descends to the lowest position, and under the transitional action of the transitional connection structure 11124, the end of the limiting member 11141 away from the first elastic member 11142 can pass over the first limit portion 11123, so that the limit function of the limiting member 11141 fails, and the shaft sleeve 1112 can continuously rotate along with the lifting rotating shaft 1113 along the first rotating direction X, so as to achieve the purpose that the cleaning member 120 cleans the floor;
referring to fig. 9, when the driver 112 drives the lifting rotating shaft 1113 to rotate along the second rotating direction Y, the abutting portion 11131 moves along the extending direction of the spiral portion 11122 toward the direction approaching the driver 112, under the action of the friction between the abutting portion 11131 and the spiral portion 11122, the bushing 1112 rotates along with the lifting rotating shaft 1113 along the second rotating direction Y by a certain angle until the limiting member 11141 abuts against the first limiting portion 11123, at this time, the limiting member 11141 cooperates with the first limiting portion 11123 to limit the rotation of the bushing 1112 along the second rotating direction Y, the abutting portion 11131 continues to move along the extending direction of the spiral portion 11122 toward the direction approaching the driver 112, until the abutting portion 11131 abuts against the limiting end of the spiral portion 11122 near the driver 112, the abutting portion 11131 cooperates with the limiting end of the spiral portion 11122 near the driver 112 to limit the rotation of the lifting rotating shaft 1113 along the second rotating direction Y, that is, the bushing 1112 and the lifting rotating shaft 1113 stop rotating, at this time, the lifting rotating shaft 1113 is lifted to the highest position, so that the situation that the lifting rotating shaft 1113 is slowed down due to the continuous rotation of the shaft sleeve 1112 in the lifting process can be prevented, and the work response speed of the lifting device 110 can be effectively improved.
In a specific example of this embodiment, please refer to fig. 4, the transitional connection structure 11124 is an involute structure, in other words, an outer circumferential radius of a portion of an outer circumferential wall of the bushing 1112, which is at the same height position as the first position-limiting portion 11123, gradually increases from the second side to the first side of the first position-limiting portion 11123, and in a rotation process of the bushing 1112, the position-limiting member 11141 can smoothly and smoothly cooperate with the portion of the outer circumferential wall of the bushing 1112, so that the operation stability of the lifting device 110 can be effectively improved.
In a specific example of the embodiment, the limiting member 11141 is slidably installed in the housing 1111, and specifically, a sliding rail (not shown) is installed in the housing 1111, the sliding rail extends toward the outer circumferential wall of the bushing 1112, and the limiting member 11141 is slidably installed on the sliding rail, so that the limiting member 11141 can stably move in the housing 1111.
In one embodiment, please refer to fig. 2 and 7, in order to improve the rotational stability of the shaft housing 1112, the lifting device 110 further includes a bearing 1116, and the bearing 1116 is installed in the rotating chamber 11111 and sleeved outside the shaft housing 1112.
Specifically, the outer wall of the shaft sleeve 1112 is provided with a second limiting portion 11125, and the second limiting portion 11125 is used for abutting against the end face of the bearing 1116 so as to limit the shaft sleeve 1112 to move along the axial direction of the shaft sleeve 1112.
In a specific example of this embodiment, the number of the bearings 1116 is one, two second limiting portions 11125 are disposed on the outer wall of the shaft sleeve 1112, one second limiting portion 11125 abuts against the upper end surface of the bearing 1116, and the other second limiting portion 11125 abuts against the lower end surface of the bearing 1116, so that the positions of the upper portion and the lower portion of the shaft sleeve 1112 can be effectively limited, and the rotational stability of the shaft sleeve 1112 can be further improved.
In another specific example of this embodiment, the number of the bearings 1116 is two, one of the bearings 1116 is disposed on the upper portion of the shaft sleeve 1112, and the other bearing 1116 is disposed on the lower portion of the shaft sleeve 1112. The outer wall of the shaft sleeve 1112 is provided with two second limiting parts 11125, one second limiting part 11125 abuts against the lower end face of one bearing 1116, and the other second limiting part 11125 abuts against the upper end face of the other bearing 1116, so that the positions of the upper part and the lower part of the shaft sleeve 1112 can be effectively limited, and the rotational stability of the shaft sleeve 1112 can be further improved.
In one embodiment, as shown in fig. 3, the spiral part 11122 is a spiral groove, the spiral groove may or may not penetrate through the wall of the bushing 1112 along the depth direction thereof, the abutting part 11131 abuts against the groove wall of the spiral groove opposite to the driver 112, and two groove ends of the spiral groove are respectively closed to form the two limit ends.
In another embodiment, the spiral part 11122 is a spiral flange (not shown), the abutting part 11131 abuts against the side of the spiral flange opposite to the driver 112, and two ends of the spiral flange are respectively provided with two limit protrusions which respectively serve as the two limit ends.
In one embodiment, please refer to fig. 2 and 7, the lifting device 110 further includes a second elastic member 1115, the second elastic member 1115 is used for providing a pushing force to the lifting rotating shaft 1113 and directed to the cleaning member 120, wherein the second elastic member 1115 includes, but not limited to, a spring or a resilient plate.
Specifically, one end of the second elastic member 1115 abuts against the driver 112 and the other end abuts against the lifting rotating shaft 1113, and optionally, one end of the second elastic member 1115, which is far away from the lifting rotating shaft 1113, abuts against the output end of the driver 112, so that the second elastic member 1115 can rotate together with the output end of the driver 112 and the lifting rotating shaft 1113. The second elastic member 1115 is kept in a compressed state, and when the lifting rotating shaft 1113 moves towards the direction close to the driver 112 (i.e., the lifting rotating shaft 1113 ascends), the second elastic member 1115 is further compressed, so that the second elastic member 1115 generates a larger elastic potential energy, and when the lifting rotating shaft 1113 moves away from the driver 112 (i.e., the lifting rotating shaft 1113 descends), the elastic potential energy of the second elastic member 1115 is gradually released to provide a downward pushing force to the lifting rotating shaft 1113, thereby increasing the descending rate of the lifting rotating shaft 1113; when the cleaning members 120 contact the floor, the second elastic member 1115 retains a part of elastic potential energy to press down the lifting rotating shaft 1113, thereby ensuring a sufficient contact force between the cleaning members 120 and the floor, thereby improving the cleaning effect of the cleaning robot 100.
Specifically, as shown in fig. 5, one end of the lifting rotating shaft 1113 is provided with a coupling cavity 11132 having a cavity opening, the coupling cavity 11132 is a strip-shaped cavity extending along the axis of the lifting rotating shaft 1113, and the cross section of the coupling cavity 11132 is a non-circular structure, such as a rectangle, an ellipse, etc., accordingly, the cross section of the output end of the driver 112 is a non-circular structure, so that the output end of the driver 112 can be matched with the coupling cavity 11132 in shape, the output end of the driver 112 is inserted into the coupling cavity 11132 through the cavity opening, and a gap is formed between the output end of the driver 112 and the cavity wall of the coupling cavity 11132, so that the output end of the driver 112 can drive the lifting rotating shaft 1113 to rotate and can move relative to the lifting rotating shaft 1113 along the vertical direction. One end of the second resilient member 1115 abuts the edge of the cavity and the other end abuts the actuator 112.
Specifically, in order to improve the smoothness of the relative movement between the lifting rotating shaft 1113 and the output end of the driver 112 along the vertical direction, a lubricant is provided in the gap between the output end of the driver 112 and the cavity wall of the coupling cavity 11132.
Specifically, a limiting groove is formed in the end portion of the lifting rotating shaft 1113 close to the driver 112, the limiting groove is arranged around the cavity opening, and one end of the second elastic piece 1115 abuts against the limiting groove.
In one embodiment, please refer to fig. 3, the number of the spiral parts 11122 is at least two, the number of the abutting parts 11131 is at least two, the spiral parts 11122 are arranged in parallel, and the abutting parts 11131 and the spiral parts 11122 are arranged in one-to-one correspondence.
Taking the case that the number of the spiral part 11122 and the abutting part 11131 is two as an example, the two spiral parts 11122 are symmetrically arranged by taking the axis of the lifting rotating shaft 1113 as the center of symmetry, the two abutting parts 11131 are symmetrically arranged by taking the axis of the lifting rotating shaft 1113 as the center of symmetry, after each abutting part 11131 abuts against the corresponding spiral part 11122, the lifting rotating shaft 1113 can achieve the overall stress balance no matter doing lifting movement or rotating movement, thereby effectively avoiding the lifting rotating shaft 1113 from tilting, and ensuring the operation stability of the lifting device 110.
In one embodiment, please refer to fig. 1, in which the driver 112 has two output ends, it is understood that the driver 112 is a two-shaft motor and the number of the lifting mechanisms 111 is two, accordingly, the cleaning robot 100 has two cleaning members 120, the lifting rotating shafts 1113 of the lifting mechanisms 111 are connected to the output ends in a one-to-one correspondence manner, and the cleaning members 120 are connected to the lifting rotating shafts 1113 of the lifting mechanisms 111 in a one-to-one correspondence manner. By adopting the technical scheme, the structure compactness of the lifting device 110 can be further improved, so that the size of the cleaning robot 100 is further reduced, and the practicability of the cleaning robot 100 is improved.
Referring to fig. 1, a second aspect of the present invention further provides a cleaning robot 100, which includes a cleaning member 120 and a lifting device 110 according to any one or more embodiments of the above, wherein an end of a lifting rotating shaft 1113 of the lifting device 110, which is far away from a driver 112 of the lifting device 110, is connected to the cleaning member 120.
Since the cleaning robot 100 employs all embodiments of the lifting device 110, at least all the advantages of the embodiments are achieved, and no further description is given here.
In one embodiment, as shown in fig. 5, a connecting portion 11133 is disposed at an end of the lifting rotating shaft 1113 away from the driver 112, and the cleaning member 120 is connected to the connecting portion 11133, specifically, to facilitate replacement of the cleaning member 120, the cleaning member 120 is detachably connected to the connecting portion 11133, and it can be understood that the detachable connection manner includes but is not limited to a snap connection manner, a fastening connection manner, and a magnetic connection manner.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (13)
1. A lifting device can be applied to a cleaning robot to drive a cleaning piece of the cleaning robot to do lifting motion, and is characterized in that: the lifting device comprises a lifting mechanism and a driver; the lifting mechanism comprises:
a housing having a rotation cavity and fixedly disposed relative to the driver;
the lifting mechanism comprises a shaft sleeve, a lifting mechanism and a driving mechanism, wherein the shaft sleeve is provided with a lifting cavity and is rotatably arranged in the rotating cavity, the inner wall of the shaft sleeve is provided with a spiral part, the spiral part extends spirally along the axis of the shaft sleeve, and two ends of the spiral part are both provided with limiting ends;
the lifting rotating shaft is coaxially arranged in the lifting cavity with the shaft sleeve, the output end of the driver is connected with the lifting rotating shaft so as to drive the lifting rotating shaft to rotate along a first rotating direction or a second rotating direction opposite to the first rotating direction, and the outer wall of the lifting rotating shaft is provided with a butting part which butts against the spiral part; when the lifting rotating shaft rotates along the first rotating direction, the abutting portion moves towards the direction far away from the driver along the extending direction of the spiral portion, and when the lifting rotating shaft rotates along the second rotating direction, the abutting portion moves towards the direction close to the driver along the extending direction of the spiral portion.
2. The lifting device according to claim 1, characterized in that: the outer wall of axle sleeve is equipped with first spacing portion, elevating system still includes the spacing subassembly of elasticity, the spacing subassembly of elasticity with first spacing portion cooperatees in order to restrict the axle sleeve rotates along the second direction of rotation.
3. The lifting device according to claim 2, characterized in that: a transitional connection structure is arranged on the outer wall of the shaft sleeve and is used for connecting one side, facing the first rotation direction, of the first limiting part; the elastic limiting assembly comprises a limiting part and a first elastic part, one end of the limiting part is used for abutting against one side, facing the second rotating direction, of the first limiting part, and the first elastic part is used for providing thrust, pointing to the shaft sleeve, for the limiting part.
4. The lifting device according to claim 3, characterized in that: the transition connection structure is an involute structure.
5. The lifting device according to claim 3, characterized in that: the limiting piece is slidably mounted in the shell.
6. The lifting device according to claim 1, characterized in that: the lifting device further comprises a bearing, and the bearing is installed in the rotating cavity and sleeved on the outer side of the shaft sleeve.
7. The lifting device as claimed in claim 6, characterized in that: the outer wall of the shaft sleeve is provided with a second limiting part, and the second limiting part is used for abutting against the end face of the bearing.
8. Lifting device according to any one of claims 1-7, characterized in that: the spiral part is a spiral groove or a spiral flange.
9. Lifting device according to any one of claims 1-7, characterized in that: the lifting device further comprises a second elastic piece, and the second elastic piece is used for providing thrust force directed to the cleaning piece for the lifting rotating shaft.
10. Lifting device according to any one of claims 1-7, characterized in that: the number of helical portion is at least two, the number of portion of leaning on is at least two, each helical portion mutual parallel arrangement, each lean on the portion with each the helical portion one-to-one sets up.
11. Lifting device according to any one of claims 1-7, characterized in that: the driver has two the output, elevating system's quantity is two, each elevating system's the lift pivot with each the output one-to-one is connected.
12. Lifting device according to any one of claims 1-7, characterized in that: one end of the lifting rotating shaft is provided with a shaft connecting cavity, the cross section of the shaft connecting cavity and the cross section of the output end are both in non-circular structures, and the output end is inserted in the shaft connecting cavity and is in clearance fit with the cavity wall of the shaft connecting cavity.
13. A cleaning robot, characterized in that: the cleaning robot comprises a cleaning member and a lifting device according to any one of claims 1 to 12, wherein an end of a lifting rotating shaft of the lifting device, which is far from a driver of the lifting device, is connected with the cleaning member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122493940.7U CN216167243U (en) | 2021-10-15 | 2021-10-15 | Lifting device and cleaning robot |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916869A (en) * | 2022-06-13 | 2022-08-19 | 广东栗子科技有限公司 | Rotary lifting floor mopping device and floor sweeping machine |
| WO2024002374A1 (en) * | 2022-06-30 | 2024-01-04 | 宁波富佳实业股份有限公司 | Liftable rotary mop structure and cleaning machine |
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2021
- 2021-10-15 CN CN202122493940.7U patent/CN216167243U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114916869A (en) * | 2022-06-13 | 2022-08-19 | 广东栗子科技有限公司 | Rotary lifting floor mopping device and floor sweeping machine |
| CN114916869B (en) * | 2022-06-13 | 2024-02-09 | 广东栗子科技有限公司 | Rotary lifting floor-sweeping device and floor-sweeping machine |
| WO2024002374A1 (en) * | 2022-06-30 | 2024-01-04 | 宁波富佳实业股份有限公司 | Liftable rotary mop structure and cleaning machine |
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