Stair cleaning robot
By combining the design of a stair cleaning robot with the movement of moving blocks and sweeping strips, along with a vacuum cleaner, the problem of residual debris after cleaning staircases is solved, achieving efficient cleaning and reducing the need for secondary cleaning.
Patent Information
- Application Number
- CN202520467136.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing stair cleaning robots are not very effective at cleaning tread stairs, and debris easily remains on the steps after cleaning, requiring secondary cleaning.
It adopts a combined design including the body, first motor, drive shaft, support arm, hydraulic cylinder, reciprocating screw, sweeping bar and vacuum cleaner. Through the coordinated movement of the moving block and sweeping bar, it can efficiently clean stepped stairs. The linkage between the vacuum pipe and the storage box can clean up light and heavy garbage.
It achieves efficient cleaning of stepped stairs, avoids residual garbage on the steps, reduces the need for secondary cleaning, and improves the efficiency of the stair cleaning robot.
Smart Images
Figure CN223886788U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stair cleaning robot technology, and in particular to stair cleaning robot. Background Technology
[0002] With the continuous development of society and the continuous progress of technology, the technology related to stair cleaning robots is also constantly improving. In order to improve the cleaning efficiency of staircases and reduce the workload of cleaning personnel, stair cleaning robots can now be used to replace cleaning personnel in cleaning staircases.
[0003] The stair cleaning robots currently in use are not very effective at cleaning stepped staircases. After cleaning the stepped staircases, residual garbage is easily left on the steps, requiring secondary cleaning, which is not conducive to the use of stair cleaning robots. Utility Model Content
[0004] The purpose of this utility model is to solve the following shortcomings in the existing technology: the current stair cleaning robots have poor cleaning effect on stepped stairs. After cleaning the stepped stairs, residual garbage is easy to remain on the steps, which requires secondary cleaning and is not conducive to the use of stair cleaning robots. Therefore, the proposed stair cleaning robot is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A stair cleaning robot includes a body on which a first motor is fixedly mounted. A drive shaft is fixedly connected to the drive end of the first motor. Two first support arms are fixedly connected to the drive shaft. A second motor is fixedly connected to each of the first support arms. A second support arm is fixedly connected to the drive end of the second motor.
[0007] The machine body has a cavity, and a hydraulic cylinder is fixedly connected to one inner wall of the cavity. A bracket is fixedly connected to the drive end of the hydraulic cylinder, and a third motor is fixedly installed on the bracket. A reciprocating screw is fixedly connected to the drive end of the third motor, and a moving block is threaded onto the reciprocating screw. A cleaning strip is provided on the moving block. A suction pipe is connected to one inner wall of the cavity through a flexible hose, and a vacuum cleaner connected to the flexible hose is installed inside the machine body.
[0008] Preferably, a groove is provided on one side of the movable block, and a bent rod is engaged in the groove. The movable block is connected to the bent rod by a first bolt, and the cleaning strip is fixedly connected to the bent rod.
[0009] Preferably, a rotating shaft is rotatably connected to the bracket, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixedly connected to the rotating shaft, the other end of the torsion spring is fixedly connected to the bracket, and a storage frame is connected to the rotating shaft by a second bolt, with a baffle snapped onto one side of the storage frame.
[0010] Preferably, a rotating plate is fixedly connected to the rotating shaft, and a crossbar is fixedly connected to one side of the inner wall of the cavity.
[0011] Preferably, a rectangular rod is fixedly connected to the bracket, and the movable block and the rectangular rod are slidably connected.
[0012] Preferably, the machine body has a storage cavity inside, and a connecting pipe that communicates with the vacuum cleaner is fixedly connected inside the storage cavity. The bottom of the machine body is connected to a cover plate by screws.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] As the moving block moves along the reciprocating screw, the vacuum cleaner starts working simultaneously. Lighter debris and dust on the countertop are sucked into the collection chamber through the suction pipe and connecting pipe. As the cleaning strip moves along with the moving block, it pushes larger, heavier debris from the countertop into the collection box. This allows for the simultaneous cleaning of both light and heavy debris, resulting in good cleaning performance on stepped stairs. After cleaning stepped stairs, it effectively prevents residual debris from remaining on the steps, eliminating the need for secondary cleaning and facilitating the use of the stair cleaning robot. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the left-side structure of the stair cleaning robot proposed in this utility model;
[0016] Figure 2 This is a schematic diagram of the right-side structure of the stair cleaning robot proposed in this utility model;
[0017] Figure 3 This is a partial internal structural diagram of the back of the stair cleaning robot proposed in this utility model;
[0018] Figure 4 This is a schematic diagram of the rear side view of the stair cleaning robot proposed in this utility model;
[0019] Figure 5 for Figure 3 A magnified view of part A in the image;
[0020] Figure 6 This is a partial internal structural diagram of the first and second support arms proposed in this utility model.
[0021] In the diagram: 1. Body, 2. First motor, 3. First support arm, 4. Second motor, 5. Second support arm, 6. Drive shaft, 7. Sweeping bar, 8. First bolt, 9. Reciprocating screw, 10. Rectangular rod, 11. Bending rod, 12. Moving block, 13. Hydraulic cylinder, 14. Storage frame, 15. Bracket, 16. Crossbar, 17. Rotating shaft, 18. Torsion spring, 19. Rotating plate, 20. Suction pipe. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.
[0024] Reference Figures 1-6 A stair cleaning robot includes a body 1, on which a first motor 2 is fixedly mounted. The drive end of the first motor 2 is fixedly connected to a drive shaft 6, which is rotatably connected to the body 1. Two first support arms 3 are fixedly connected to the drive shaft 6. Each first support arm 3 is a hollow structure. A second motor 4 is fixedly connected to each first support arm 3. The drive end of the second motor 4 is fixedly connected to a second support arm 5, which is rotatably connected to the first support arm 3. A cavity is formed in the body 1. A hydraulic cylinder 13 is fixedly connected to the inner wall of one side of the cavity. A bracket 15 is fixedly connected to the drive end of the hydraulic cylinder 13. A third motor is fixedly mounted on the bracket 15. A reciprocating screw 9 is fixedly connected to the drive end of the third motor. A moving block 12 is threadedly connected to the reciprocating screw 9. A cleaning strip 7 is provided on the moving block 12. A suction pipe 20 is connected to the inner wall of one side of the cavity through a hose. A vacuum cleaner connected to the hose is installed inside the body 1.
[0025] A groove is provided on one side of the movable block 12, and a bent rod 11 is engaged in the groove. The movable block 12 is connected to the bent rod 11 by a first bolt 8. The cleaning strip 7 is fixedly connected to the bent rod 11. One end of the bent rod 11 is inserted into the groove, and then one end of the first bolt 8 is inserted into the groove and threaded to the bent rod 11, so that the cleaning strip 7 and the movable block 12 are firmly connected together. One end of the rotating shaft 17 is engaged with one side surface of the storage frame 14, and then one end of the second bolt passes through the storage frame 14 and is threaded to the rotating shaft 17, so that the storage frame 14 and the rotating shaft 17 are firmly connected together.
[0026] A rotating shaft 17 is rotatably connected to the bracket 15. A torsion spring 18 is fitted onto the rotating shaft 17. One end of the torsion spring 18 is fixedly connected to the rotating shaft 17, and the other end is fixedly connected to the bracket 15. A storage frame 14 is connected to the rotating shaft 17 via a second bolt. A baffle is snapped onto one side of the storage frame 14. A rotating plate 19 is fixedly connected to the rotating shaft 17. A crossbar 16 is fixedly connected to one inner wall of the cavity to detach the baffle from the storage frame 14. (See attached image) Figure 3 This refers to the case where the baffle has been removed. (See attached image) Figure 4 (This is the case where the baffle is not removed). Then, the hydraulic cylinder 13 drives the bracket 15 to move, and the rotating shaft 17 moves at the same time. The rotating plate 19 will gradually move against the surface of the crossbar 16. The rotating shaft 17 will rotate relative to the machine body 1. The torsion spring 18 will deform. After the storage frame 14 rotates, it will be tilted to facilitate the dumping of the garbage inside the storage frame 14. The lower inner wall of the storage frame 14 can be set as a slope with a small inclination, and the side away from the cleaning strip 7 is lower in height. The torsion spring 18 keeps the storage frame 14 in a state parallel to the machine body 1.
[0027] A rectangular rod 10 is fixedly connected to the bracket 15. The movable block 12 is slidably connected to the rectangular rod 10. The rectangular rod 10 can limit the movement trajectory of the movable block 12 and prevent the movable block 12 from swinging. A storage cavity is opened inside the body 1. A connecting pipe connected to the vacuum cleaner is fixedly connected inside the storage cavity. A cover plate is connected to the bottom of the body 1 by screws (the storage cavity, connecting pipe, screws and cover plate are not shown). Opening the cover plate allows the garbage inside the storage cavity to be poured out.
[0028] In this invention, during use, the first motor 2 drives the drive shaft 6 to rotate. Under the transmission action of the drive shaft 6, the two first support arms 3 can be rotated. The two second motors 4 simultaneously drive the two second support arms 5 to rotate, which can change the angle of the second support arms 5. During this process, the body 1 and the second support arms 5 are always kept in a parallel state, which can realize the action of the body 1 going up or down the stepped stairs. When the lower surface of the body 1 is parallel and in contact with the stepped platform, the first motor 2 and the two second motors 4 stop running. At this time, the distance between the cleaning strip 7 and the storage frame 14 reaches its maximum. Then, the third motor drives the reciprocating screw 9 to rotate, and the moving block 12 will move along the reciprocating screw 9 and slide relative to the rectangular rod 10. At the same time, the vacuum cleaner (not shown) starts to work. The vacuum pipe 20 can suck the lighter garbage and dust on the table into the storage cavity for collection through the hose and connecting pipe.
[0029] As the cleaning strip 7 moves along with the moving block 12, it can push relatively heavy debris on the countertop into the storage box 14. The bottom of the storage box 14 is only three millimeters thick, and the bottom of the cleaning strip 7 has a certain degree of elasticity, so that the debris can be smoothly swept into the storage box 14. It can clean both light and heavy debris at the same time, and has a good cleaning effect on stepped stairs. After cleaning stepped stairs, it can effectively prevent the presence of residual debris on the stair steps, eliminating the need for secondary cleaning and facilitating the use of the stair cleaning robot.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A stair cleaning robot, comprising a body (1), characterized in that, A first motor (2) is fixedly installed on the body (1). A drive shaft (6) is fixedly connected to the drive end of the first motor (2). Two first support arms (3) are fixedly connected to the drive shaft (6). A second motor (4) is fixedly connected to each first support arm (3). A second support arm (5) is fixedly connected to the drive end of the second motor (4). The machine body (1) has a cavity. A hydraulic cylinder (13) is fixedly connected to the inner wall of one side of the cavity. A bracket (15) is fixedly connected to the drive end of the hydraulic cylinder (13). A third motor is fixedly installed on the bracket (15). A reciprocating screw (9) is fixedly connected to the drive end of the third motor. A moving block (12) is threaded onto the reciprocating screw (9). A cleaning strip (7) is provided on the moving block (12). A vacuum cleaner (20) is connected to the inner wall of one side of the cavity through a flexible hose. A vacuum cleaner connected to the flexible hose is installed inside the machine body (1).
2. The stair cleaning robot according to claim 1, characterized in that, The movable block (12) has a groove on one side, and a bent rod (11) is engaged in the groove. The movable block (12) is connected to the bent rod (11) by a first bolt (8), and the cleaning strip (7) is fixedly connected to the bent rod (11).
3. The stair cleaning robot according to claim 1, characterized in that, A rotating shaft (17) is rotatably connected to the bracket (15). A torsion spring (18) is sleeved on the rotating shaft (17). One end of the torsion spring (18) is fixedly connected to the rotating shaft (17), and the other end of the torsion spring (18) is fixedly connected to the bracket (15). A storage frame (14) is connected to the rotating shaft (17) by a second bolt. A baffle is snapped onto one side of the storage frame (14).
4. The stair cleaning robot according to claim 3, characterized in that, A rotating plate (19) is fixedly connected to the rotating shaft (17), and a crossbar (16) is fixedly connected to one side of the inner wall of the cavity.
5. The stair cleaning robot according to claim 1, characterized in that, A rectangular rod (10) is fixedly connected to the bracket (15), and the movable block (12) and the rectangular rod (10) are slidably connected.
6. The stair cleaning robot according to claim 1, characterized in that, The body (1) has a storage cavity inside, and a connecting pipe connected to the vacuum cleaner is fixedly connected inside the storage cavity. The bottom of the body (1) is connected to a cover plate by screws.