Traveling mechanism of sweeping robot
By incorporating grooves, threaded sleeves, and cutter structures into the robot vacuum's propulsion mechanism, the problem of rotational resistance caused by hair entanglement on the rotating shaft was solved, achieving stable rotation of the shaft and efficient movement of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-27
AI Technical Summary
During use, hair tends to accumulate at the connection between the axle and the rollers of existing robotic vacuum cleaners, affecting the smoothness of the axle's rotation and increasing the device's resistance.
A propulsion mechanism for a sweeping robot was designed. By setting a groove and threaded sleeve structure on the rotating shaft, combined with a cutter and a spring, the hair wrapped around the rotating shaft can be cut off, ensuring stable rotation of the rotating shaft.
This effectively avoids the problem of shaft resistance caused by hair entanglement, maintains stable shaft rotation, and improves the movement efficiency of the device.
Smart Images

Figure CN224039109U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a floor sweeping robot technical field, more specifically, it relates to a kind of advancing mechanism of floor sweeping robot. BACKGROUND
[0002] Floor sweeping robot is also called automatic cleaning machine, intelligent dusting, robot vacuum cleaner, etc., which is a kind of intelligent household appliance, can complete floor cleaning work in room automatically by certain artificial intelligence. Generally, it uses brush and vacuum method to absorb the dirt on the floor into its garbage storage box, thereby completing the function of floor cleaning. Floor sweeping robot moves on the ground by using roller transmission device.
[0003] For this, Chinese patent number: CN202120422713.2 discloses a kind of floor sweeping robot roller structure, including base, the bottom of the inner surface of the base is fixedly installed motor, the top of the base is equipped with top plate, the top plate and the bottom surface of the inner surface of the base are fixed with spring, the output shaft of the motor is fixedly connected with shaft, the outer end of the shaft passes through the base and extends to the outside of the base, the outer surface of the shaft is fixedly sleeved with fixing ring, the side surface of the fixing ring is fixedly connected with sleeve rod. The floor sweeping robot roller structure, by the outer surface of the shaft fixedly sleeving the fixing ring, and the side surface of the fixing ring is fixedly connected with sleeve rod, and the inner side surface of the roller is fixedly connected with sleeve plate, a sleeve hole is formed in the side surface of the sleeve plate and is sleeved with the sleeve rod, the roller is clamped and fixed by locking cap, to ensure that the roller is sleeved and connected, to avoid the roller from being loose on the shaft, to improve the running effect of the roller.
[0004] The floor sweeping robot can drive the roller to rotate by the rotation of the shaft, but the existing floor sweeping robot has the problem that the part connecting the shaft and the roller is exposed from the inside of the shell, so when the shaft rotates, the hair on the ground will be rolled on the surface of the shaft. Over time, the hair will accumulate on the surface of the shaft, affecting the smooth rotation of the shaft, and increasing the resistance of the device.
[0005] Therefore, in order to solve the above technical problems, the application provides an advancing mechanism of floor sweeping robot. UTILITY MODEL CONTENT
[0006] In view of the deficiencies of the prior art, the purpose of the utility model is to provide an advancing mechanism of floor sweeping robot.
[0007] To achieve the above purpose, the utility model provides the following technical scheme:
[0008] An advancing mechanism of floor sweeping robot, comprising: a shell, a brush is installed on the bottom surface of the shell, a brush cylinder is installed on the middle of the bottom surface of the shell;
[0009] The bottom side of the shell is provided with a moving structure, the moving structure comprises a double-head motor, the double-head motor is fixedly installed on the inner side of the shell, the output end of the double-head motor is fixedly connected with a rotating shaft, the end of the rotating shaft is provided with a prism cylinder, the end of the prism cylinder is provided with a threaded cylinder, the outer side of the prism cylinder is sleeved with a roller, the inner side of the roller is provided with a prism groove, the outer side of the threaded cylinder is threadedly connected with a threaded sleeve, the inner side of the threaded cylinder is threadedly connected with a threaded column, the outer wall of the threaded cylinder is threadedly connected with a bolt, the inside of the rotating shaft is provided with a receiving groove, the inner side of the receiving groove is movably installed with a cutter, the outer wall of the cutter is provided with a sliding block, and the surface of the sliding block is fixedly connected with a double-head spring.
[0010] Preferably, the end of the rotating shaft is exposed to the outer wall of the shell, and the prism groove is matched with the prism cylinder.
[0011] Preferably, the threaded sleeve abuts against the roller, and the threaded sleeve is located between the roller and the bolt.
[0012] Preferably, the receiving groove penetrates through the prism cylinder and the threaded cylinder, and the sliding block is slidingly installed in the inner wall of the receiving groove.
[0013] Preferably, the cutter is located on the inner side of the receiving groove, and one end of the double-head spring is fixedly connected with the inner wall of the receiving groove.
[0014] Compared with the prior art, the utility model has the advantages of the following:
[0015] In the utility model, when installing, the roller is sleeved on the outer side of the prism cylinder through the prism groove, so that the side wall of the roller abuts against the end of the prism cylinder, the threaded sleeve is rotated, the side wall of the threaded sleeve can abut against the side wall of the roller, then the bolt is screwed on the surface of the threaded cylinder, the bolt can limit the position of the threaded sleeve on the outer side of the threaded cylinder on one side, so as to improve the installation stability of the roller and avoid the falling of the roller; when the rotating shaft rotates, the hair can be wound on the surface of the rotating shaft between the roller and the shell, at this time, the screwdriver is used to rotate the threaded column, the threaded column moves in the receiving groove, the tapered end of the threaded column abuts against the cutter and pushes the cutter to move up and down through the sliding block, the cutter moves and drives the double-head spring to elastically deform, so that the sharp end of the cutter extends from the surface of the rotating shaft, the hair wound on the surface of the rotating shaft can be cut, the surface of the rotating shaft can be kept clean, and the rotating shaft can stably rotate on the shell; the threaded column is rotated in the opposite direction, the threaded column moves away from the cutter, and the cutter can be reset under the elastic action of the double-head spring, so that the cutter can be stored. BRIEF DESCRIPTION OF DRAWINGS
[0016] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application. In the drawings:
[0017] Figure 1 It is a structure perspective view of the present application;
[0018] Figure 2 It is a structure bottom view of the present application;
[0019] Figure 3 It is a structure top view of the mobile structure of the present application;
[0020] Figure 4 It is an exploded view of the structure of the shaft of the present application;
[0021] Figure 5 It is an enlarged view of the structure of the roller of the present application.
[0022] 1, the shell; 11, the brush; 12, the brush barrel; 2, the mobile structure; 21, the double-head motor; 22, the shaft; 23, the edge cylinder; 24, the threaded cylinder; 25, the roller; 26, the edge groove; 27, the threaded sleeve; 28, the threaded column; 29, the bolt; 210, the storage groove; 211, the cutter; 212, the sliding block; 213, the spring. DETAILED DESCRIPTION
[0023] Please refer to Figures 1-5 The present application provides a kind of travel mechanism of sweeping robot:
[0024] The shell 1, the brush 11, the brush barrel 12 and the double-head motor 21 used in the present application are products that can be directly purchased in the market, and their principles and connection modes are all prior art known to those skilled in the art, so they will not be described here.
[0025] A kind of travel mechanism of sweeping robot, comprising: shell 1, the bottom surface rear side of shell 1 is equipped with brush 11, and the bottom surface middle part of shell 1 is equipped with brush barrel 12;
[0026] The bottom side of the shell 1 is provided with a moving structure 2, the moving structure 2 comprises a double-head motor 21, the double-head motor 21 is fixedly installed on the inner side of the shell 1, the output end of the double-head motor 21 is fixedly connected with a rotating shaft 22, the end of the rotating shaft 22 is provided with a prism cylinder 23, the end of the prism cylinder 23 is provided with a threaded cylinder 24, the outer side of the prism cylinder 23 is sleeved with a roller 25, the inner side of the roller 25 is provided with a prism groove 26, the outer side of the threaded cylinder 24 is threadedly connected with a threaded sleeve 27, the inner side of the threaded cylinder 24 is threadedly connected with a threaded column 28, the outer wall of the threaded cylinder 24 is threadedly connected with a bolt 29, the inside of the rotating shaft 22 is provided with a receiving groove 210, the inner side of the receiving groove 210 is movably installed with a cutter 211, the outer wall of the cutter 211 is provided with a sliding block 212, the surface of the sliding block 212 is fixedly connected with a double-head spring 213, during installation, the roller 25 is sleeved on the outer side of the prism cylinder 23 through the prism groove 26, so that the side wall of the roller 25 abuts against the end of the prism cylinder 23, the threaded sleeve 27 is rotated, the threaded sleeve 27 is screwed on the outer side of the threaded cylinder 24, the side wall of the threaded sleeve 27 can abut against the side wall of the roller 25, then the bolt 29 is screwed on the surface of the threaded cylinder 24, the bolt 29 can limit the position of the threaded sleeve 27 on the outer side of the threaded cylinder 24 on one side, so as to improve the installation stability of the roller 25 and avoid the roller 25 from falling off; when the rotating shaft 22 rotates, the hair will be wound on the surface of the rotating shaft 22 between the roller 25 and the shell 1, at this time, the threaded column 28 is rotated by using a screwdriver, the threaded column 28 moves in the receiving groove 210, the tapered end of the threaded column 28 abuts against the cutter 211 and pushes the cutter 211 to move up and down through the sliding block 212, the cutter 211 moves and drives the double-head spring 213 to elastically deform, so that the sharp end of the cutter 211 extends from the surface of the rotating shaft 22, the hair wound on the surface of the rotating shaft 22 can be cut off, the surface of the rotating shaft 22 can be kept clean, and the rotating shaft 22 can stably rotate on the shell 1, the threaded column 28 is reversely rotated, the threaded column 28 moves away from the cutter 211, and the cutter 211 can be reset under the elastic action of the double-head spring 213, so as to realize the storage of the cutter 211.
[0027] Further, the end of the rotating shaft 22 protrudes from the outer wall of the shell 1, the prism groove 26 is matched with the prism cylinder 23, and the roller 25 can be clamped on the outer side of the prism cylinder 23 through the prism groove 26, so that the rotating shaft 22 can stably drive the roller 25 to rotate.
[0028] Further, the threaded sleeve 27 abuts against the roller 25, the threaded sleeve 27 is located between the roller 25 and the bolt 29, the threaded sleeve 27 can limit the roller 25 on one side, and the bolt 29 can limit the position of the threaded sleeve 27 on the outer side of the threaded cylinder 24, so as to avoid the threaded sleeve 27 from loosening and moving.
[0029] Further, the receiving groove 210 penetrates the prism cylinder 23 and the threaded cylinder 24, the sliding block 212 is slidingly installed in the inner wall of the receiving groove 210, and the threaded column 28 is movable inside the prism cylinder 23, the threaded cylinder 24 and the rotating shaft 22.
[0030] Further, the cutter 211 is located inside the receiving groove 210, one end of the double-headed spring 213 is fixedly connected with the inner wall of the receiving groove 210, and the double-headed spring 213 provides power for the cutter 211 to be received in the receiving groove 210.
[0031] The above is only a preferred embodiment of the present application, and does not limit the present application in any form; any person skilled in the art can easily implement the present application according to the drawings and the above description; however, any equivalent changes, modifications and evolutions made by those skilled in the art within the scope of the technical scheme of the present application, using the above disclosed technical content, are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolutions made according to the essential technology of the present application to the above embodiments are still within the protection scope of the technical scheme of the present application.
Claims
1. A travel mechanism of a robotic floor sweeping machine, comprising: The shell (1) is provided with a brush (11) on the bottom rear side, and a brush cylinder (12) is installed on the middle of the bottom surface of the shell (1). Characterized in that: The front side of the bottom surface of the shell (1) is provided with a moving structure (2), which comprises a double-head motor (21) fixedly installed on the inner side of the shell (1), an output end of the double-head motor (21) is fixedly connected with a rotating shaft (22), an end of the rotating shaft (22) is provided with a prism cylinder (23), an end of the prism cylinder (23) is provided with a threaded cylinder (24), the outer side of the prism cylinder (23) is sleeved with a roller (25), the inner side of the roller (25) is provided with a prism groove (26), the outer side of the threaded cylinder (24) is threadedly connected with a threaded sleeve (27), the inner side of the threaded cylinder (24) is threadedly connected with a threaded column (28), the outer wall of the threaded cylinder (24) is threadedly connected with a bolt (29), the inside of the rotating shaft (22) is provided with a receiving groove (210), the inner side of the receiving groove (210) is movably installed with a cutter (211), the outer wall of the cutter (211) is provided with a sliding block (212), the surface of the sliding block (212) is fixedly connected with a double-head spring (213).
2. The traveling mechanism of the sweeping robot according to claim 1, wherein: An end of the rotating shaft (22) is exposed to the outer wall of the shell (1), and the prism groove (26) is matched with the prism cylinder (23).
3. The traveling mechanism of the sweeping robot according to claim 1, wherein: The threaded sleeve (27) abuts against the roller (25), and the threaded sleeve (27) is located between the roller (25) and the bolt (29).
4. The traveling mechanism of the sweeping robot according to claim 1, wherein: The receiving groove (210) penetrates through the prism cylinder (23) and the threaded cylinder (24), and the sliding block (212) is slidingly installed in the inner wall of the receiving groove (210).
5. The traveling mechanism of the sweeping robot according to claim 1, wherein: The cutter (211) is located on the inner side of the receiving groove (210), and one end of the double-head spring (213) is fixedly connected with the inner wall of the receiving groove (210).
Citation Information
Patent Citations
Roller structure of sweeper robot
CN215227230U