Cleaning module with lifting damping structure

Abstract

The utility model relates to the technical field of household cleaning robots, in particular to a cleaning module with a lifting damping structure, which comprises a shell, a cleaning driving part, a cleaning transmission component, a rotary output shaft part and a lifting output shaft part, the cleaning driving piece is in driving connection with the upper end of the rotating output shaft piece through the cleaning transmission assembly, and the upper end of the lifting output shaft piece is rotationally connected with the lower end of the rotating output shaft piece in a lifting mode; an opening is formed in one end of the shell, the lower end of the lifting output shaft piece protrudes out of the opening and is used for being externally connected with a cleaning piece, a plurality of grooves are formed in the inner side of the opening, and friction pieces are connected between the lifting output shaft piece and the grooves in a rotating friction mode. The cleaning module with the lifting damping structure is simple in structure, low in manufacturing cost and capable of being effectively popularized.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic cleaning robot technical field, concretely relates to a cleaning module with lift damping structure. BACKGROUND

[0002] Cleaning robot is a kind of intelligent household cleaning electric appliance, it can complete cleaning, dust collection, wiping work on ground automatically.According to the different functions of application, there are dust collection robot, floor mopping robot and robot of dust collection and mopping integration.With the progress of science and technology and the improvement of people's life quality, cleaning robot has entered more and more people's life.

[0003] The mainstream sweeper robot on the market currently, most of the sweeper cloth tray has the senior function such as autonomous lifting, obstacle avoidance and rebound, usually by adding lifting structure on the reducer box of cloth tray, lifting mechanism mostly adopts screw thread structure or spiral groove structure, using the forward and reverse rotation of driving shaft, respectively realizes the functions of cleaning and lifting.For this reason, mostly adopts overrunning clutch, grinding file wheel and other structures, these technologies are either complex structure, or high cost, or cloth tray cannot reliably descend. SUMMARY

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a cleaning module with lifting damping structure, which is simple in structure, low in manufacturing cost and can be effectively popularized.

[0005] The utility model is realized through the following technical schemes:

[0006] A cleaning module with lifting damping structure, including shell, cleaning drive part installed in the shell, cleaning transmission assembly, rotating output shaft part and lifting output shaft part, the cleaning drive part is drivenly connected with the upper end of rotating output shaft part through cleaning transmission assembly, the upper end of lifting output shaft part is rotatably connected with the lower end of rotating output shaft part;

[0007] One end of the shell is provided with an opening, the lower end of the lifting output shaft part protrudes out of the opening and is used for external connection of cleaning part, the inner side of the opening is provided with a plurality of grooves, and a friction part is rotatably and frictionally connected between the lifting output shaft part and the groove.

[0008] Among them, the rotating output shaft part includes rotating shaft and a plurality of guide columns arranged at the lower end of the rotating shaft, and the lifting output shaft part includes lifting shaft and guide inclined groove arranged on the outer side of the lifting shaft and corresponding to the guide column;When the external force acts on the bottom end of the lifting shaft, the lifting shaft rotates and lifts along the direction of the guide inclined groove.

[0009] Among them, the lifting shaft and the rotating shaft are further connected with elastic parts.

[0010] The lifting shaft is further provided with a lifting shaft sleeve outside, and the friction element is rotationally and frictionally connected between the lifting shaft sleeve and the groove.

[0011] The groove is in M-shaped structure.

[0012] The friction element is a ball or a ball.

[0013] The lifting output shaft is further provided with an induction device on one side.

[0014] The present application has the following beneficial effects:

[0015] The cleaning module with the lifting damping structure has the rotation output shaft and the lifting output shaft, when the lower end of the lifting output shaft hits an obstacle, the rotation output shaft and the lifting output shaft are linked to realize the rotation and lifting of the lifting output shaft, so that the obstacle avoidance effect is achieved; in addition, the lifting of the cloth disc is actively driven, the friction element is arranged to overcome the defects of the unreliable descending action relying on gravity and the descending unreliability when the one-way clutch is used, and the defects of the long-term friction and wear and the high risk of functional failure when the grinding wheel structure is used. Compared with the prior art, the present application has the advantages of simple structure, low manufacturing cost and effective popularization. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a three-dimensional structure diagram of the present application.

[0018] Figure 2 It is an explosion diagram of the present application.

[0019] Figure 3 It is a structure diagram when the lifting output shaft is located at the highest position.

[0020] Figure 4 It is a structure diagram when the lifting output shaft is located at the lowest position.

[0021] Figure 5 It is a position relationship diagram of the friction element and the groove when the lifting output shaft is located at the highest position.

[0022] Figure 6 It is a position relationship diagram of the friction element and the groove when the lifting output shaft is located at the lowest position.

[0023] REFERENCE NUMERALS

[0024] Housing - 100, friction piece - 101, groove - 102, lifting shaft sleeve - 103, cleaning drive - 104, cleaning transmission assembly - 105, elastic piece - 106, induction device - 107,

[0025] Rotary output shaft - 200, rotary shaft - 201, guide column - 202,

[0026] Lifting output shaft - 300, lifting shaft - 301, guide inclined groove - 302. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those described herein, and skilled persons in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] The cleaning robot is a kind of intelligent household cleaning appliance, which can automatically complete sweeping, dust collection and floor wiping on the ground. According to the different functions of application, there are dust collection robots, floor wiping robots and integrated robots. With the progress of science and technology and the improvement of people's living quality, cleaning robots have entered the lives of more and more people.

[0031] The mainstream sweeping robot on the market, the sweeping cloth disc mostly has the functions of autonomous lifting, obstacle avoidance and rebound, etc., usually by adding a lifting structure on the reduction box of the cloth disc, the lifting mechanism mostly adopts a thread structure or a guide inclined groove structure, and the functions of cleaning and lifting are realized by forward and reverse rotation of the driving shaft. Therefore, a freewheel, a grinding wheel and other structures are mostly adopted, and these technologies have complex structure, high cost, or the cloth disc cannot be reliably lowered.

[0032] To solve the above problems, the embodiment discloses a cleaning module with a lifting damping structure, which has the structure as shown in the figure. Figures 1 to 6 The cleaning module includes a shell 100, a cleaning driving part 104 installed on the shell 100, a cleaning transmission assembly 105, a rotating output shaft part 200 and a lifting output shaft part 300. The cleaning driving part 104 is drivingly connected to the upper end of the rotating output shaft part 200 through the cleaning transmission assembly 105, and the upper end of the lifting output shaft part 300 is rotatably connected to the lower end of the rotating output shaft part 200.

[0033] One end of the shell 100 is provided with an opening, the lower end of the lifting output shaft part 300 protrudes out of the opening and is used for connecting an external cleaning part, and the inner side of the opening is provided with a plurality of grooves 102. A friction part 101 is rotatably and frictionally connected between the lifting output shaft part 300 and the grooves 102.

[0034] Specifically, the cleaning module with a lifting damping structure of the embodiment is provided with a rotating output shaft part 200 and a lifting output shaft part 300. When the lower end of the lifting output shaft part 300 collides with an obstacle, the rotation of the lifting output shaft part 300 is realized through the linkage between the rotating output shaft part 200 and the lifting output shaft part 300, thereby achieving the effect of obstacle avoidance. In addition, since the lifting of the cloth disc is actively driven, the defect that the descending action relies on gravity and is unreliable when a one-way clutch is used is overcome by setting the friction part 101, and the defect that long-term friction and wear and the risk of functional failure are large when a grinding wheel structure is used is overcome. Compared with the prior art, the structure of the utility model is simple, the manufacturing cost is low, and the utility model can be effectively popularized.

[0035] In the embodiment, the cleaning driving part 104 is preferably a brushless motor, and the cleaning transmission assembly 105 is preferably a gear set composed of a worm gear, a worm shaft and a plurality of gears of different sizes, so as to reduce and amplify the output of the brushless motor.

[0036] Further, the rotating output shaft 200 comprises a rotating shaft 201 and a plurality of guide columns 202 arranged at the lower end of the rotating shaft 201, and the lifting output shaft 300 comprises a lifting shaft 301 and a plurality of guide inclined grooves 302 arranged outside the lifting shaft 301 and corresponding to the guide columns 202; when the external force acts on the bottom end of the lifting shaft 301, the lifting shaft 301 rotates and lifts along the direction of the guide inclined grooves 302.

[0037] In the embodiment, the number of the guide columns 202 and the guide inclined grooves 302 is three, which can ensure the stability of the lifting shaft 301 during lifting and rotating; and from the Figure 3 and Figure 4 It can be seen that the shape of the guide inclined grooves 302 is L-shaped, and since the lower end of the lifting output shaft 300 circumscribes the cleaning element such as a cloth, when the cleaning element hits an obstacle, the resistance is transmitted to the lifting shaft 301 along the cleaning element, the lifting shaft 301 rises along the guide inclined grooves 302 under the action of the guide columns 202, and finally reaches the state as shown in Figure 4 .

[0038] Specifically, the lifting shaft 301 is further provided with a lifting shaft sleeve 103 which slides, and the friction element 101 is rotationally and frictionally connected between the lifting shaft sleeve 103 and the groove 102. When the lifting shaft 301 rises to the highest point, the lifting shaft 301 has been basically retracted into the shell at this time, only a small section is connected with the cleaning element, and the lifting shaft sleeve 103 can limit the lifting of the lifting shaft 301 to ensure the stability of the lifting of the lifting shaft 301.

[0039] In addition, the groove 102 of the embodiment is in M-shaped structure, specifically, the middle part of the groove 102 is shallow, and the two ends are deep; the depth and the shallowness should be reasonably designed according to the required damping force. In the embodiment, the friction element 101 is preferably a roller, when the roller is at both sides of the groove 102, there is a small gap between the roller and the outer side surface of the lifting shaft 301, and when the roller moves to the middle of the groove 102, the roller has a pressing action on the outer side surface of the lifting shaft 301. It is particularly noted that the groove 102 described herein has a very short axis direction, and the roller herein is replaced by a ball, which also has the same action characteristics.

[0040] Suppose the lifting shaft 301 is in the highest position as shown in Figure 3 , at this time the roller is in Figure 5When the cleaning driving member 104 is started, the output gear of the cleaning transmission assembly 105 rotates counterclockwise, drives the three guide columns 202 to rotate through the rotating shaft 201, the guide columns 202 press the guide inclined grooves 302 on the lifting shaft 301, drive the lifting shaft 301 to rotate counterclockwise, the lifting shaft 301 drives the lifting shaft sleeve 103 in sliding connection therewith to rotate counterclockwise, the lifting shaft sleeve 103 drives the rollers to rotate through friction and thereby moves to the middle of the M-shaped groove 102, in the moving process, the lifting shaft sleeve 103 is locked at a position and cannot rotate, and thereby the lifting shaft 301 cannot rotate freely, at this time, the guide columns 202 continue to press the guide inclined grooves 302, the downward component force pushes the lifting shaft 301 to move downward until the cloth disc installed below the lifting shaft 301 is pressed to the ground. After the cloth disc is pressed to the ground, the lifting shaft 301 cannot move downward, but the rotating shaft 201 drives the three guide columns 202 to continue to rotate, when the force of the lifting shaft sleeve 103 pressing and driving the rollers is relatively large and can deform the groove 102, the rollers pass the shallowest part of the groove 102 and enter the other end, at this time, the rollers are equivalent to the rollers of a needle bearing, continue to rotate the lifting shaft sleeve 103 and drive the cloth disc to rotate to perform the cleaning operation.

[0041] After the cleaning operation is completed, the motor is reversed to drive the lifting shaft sleeve 103 to rotate clockwise, the lifting shaft sleeve 103 drives the rollers to move from Figure 6 the position shown by the solid line in the middle of the groove 102 to the middle of the groove 102, and in the same way, at a certain moment before reaching the middle position, the lifting shaft sleeve 103 is locked at a position and cannot rotate, and thereby the lifting shaft 301 cannot rotate freely, at this time, the guide columns 202 continue to press the guide inclined grooves 302, the upward component force pushes the lifting shaft 301 to move upward until the lifting shaft 301 is pressed to the shell 100. After the lifting shaft 301 is pressed to the shell 100, the lifting shaft 301 cannot move upward, but the rotating shaft 201 drives the three guide columns 202 to continue to rotate, when the force of the lifting shaft sleeve 103 pressing and driving the rollers is relatively large and can deform the groove 102, the rollers pass the shallowest part of the groove 102 and enter the other end Figure 6 (position shown by the dotted line in the middle), and the lifting of the cloth disc is completed.

[0042] The above M-shaped groove 102 and the rollers form a bidirectional damping structure, which can make the lifting of the cleaning module more stable and have a longer service life.

[0043] Further, one side of the lifting output shaft member 300 is further provided with a sensing device 107, in the embodiment, the sensing device 107 is preferably an optical sensing signal device. From Figure 2 、 Figure 3 and Figure 4It can be seen that in the general state, the inductive device 107 does not detect the lifting shaft 301 rising, that is, it can be judged that the cleaning member does not touch the obstacle; when the cleaning member touches the obstacle, the lifting shaft 301 rises to the position that the inductive device 107 can induct, so that the robot can accurately judge the current obstacle avoidance state, so as to send subsequent other action instructions.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A cleaning module with a lifting damping structure, characterized in that, The shell, the cleaning driving element installed on the shell, the cleaning transmission assembly, the rotating output shaft element and the lifting output shaft element, the cleaning driving element is driven and connected with the upper end of the rotating output shaft element through the cleaning transmission assembly, the upper end of the lifting output shaft element is rotatably connected with the lower end of the rotating output shaft element; One end of the shell is provided with an opening, the lower end of the lifting output shaft element protrudes out of the opening and is used for connecting the cleaning element, the inner side of the opening is provided with a plurality of grooves, the lifting output shaft element and the grooves are rotatably and frictionally connected with the friction element.

2. The cleaning module with lifting damping structure according to claim 1, characterized in that, The rotating output shaft element comprises a rotating shaft and a plurality of guide columns arranged at the lower end of the rotating shaft, the lifting output shaft element comprises a lifting shaft and a guide inclined groove arranged on the outer side of the lifting shaft and corresponding to the guide columns; When the external force acts on the bottom end of the lifting shaft, the lifting shaft rotates and lifts along the direction of the guide inclined groove.

3. The cleaning module with lifting damping structure according to claim 2, characterized in that, The lifting shaft and the rotating shaft are further connected with the elastic element.

4. The cleaning module with lifting damping structure according to claim 2, characterized in that, The lifting shaft is further provided with a lifting shaft sleeve, and the friction element is rotatably and frictionally connected between the lifting shaft sleeve and the groove.

5. The cleaning module with lifting damping structure according to claim 1, characterized in that, The groove is in M-shaped structure.

6. The cleaning module with lifting damping structure according to claim 1, characterized in that, The friction element is a ball.

7. The cleaning module with lifting damping structure according to claim 1, characterized in that, One side of the lifting output shaft element is further provided with an induction device.

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