A waterproof deceleration motor of a cleaning robot

By installing a waterproof component at the wiring port of the cleaning robot's geared motor, the tightness between the wiring port and the connecting wire is improved, solving the problem of insufficient waterproof performance of the junction box, and achieving stable operation in humid environments and extending the motor's lifespan.

CN224418559UActive Publication Date: 2026-06-26SHANDONG DEPUDA ELECTRIC MOTOR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG DEPUDA ELECTRIC MOTOR CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The junction box and connection structure of the existing cleaning robot geared motor have insufficient waterproof performance, which makes it easy for external moisture and dust to seep in, affecting the normal operation and lifespan of the motor.

Method used

Waterproof components are used, including tapered sleeves, screws, nuts, springs, adjusting sleeves, and rubber pads. Through threaded connections and rubber seals, the tightness between the wiring port and the connecting wire is improved, preventing moisture and impurities from entering the junction box.

Benefits of technology

It effectively prevents moisture and dust from entering the junction box, protects internal components, extends motor life, and ensures stable robot operation in humid environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of waterproof reduction motor of cleaning robot, it is related to the technical field of cleaning robot, including mounting seat, the top of mounting seat is connected with reduction motor main body, the top of reduction motor main body is connected with terminal box, the outer wall of terminal box is connected with wiring port, the outer wall of wiring port is movably connected with waterproof assembly. By being provided with waterproof assembly, by connecting wiring and wiring port, after installation is completed, by respectively installing conical sleeve and mounting sleeve to the outer wall of wiring port, the tightness of connection between conical sleeve and wiring port is improved using rubber block, then conical sleeve and mounting sleeve are pressed, so as to be fixed to wiring according to the size of wiring by adjusting sleeve to spring extrusion, under the expansion and resilience of spring, adjusting sleeve is driven to specified position expansion, so as to be fixed to wiring. The device solves the problem that the terminal box of current reduction motor and wiring installation are not tight.
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Description

Technical Field

[0001] This utility model belongs to the field of cleaning robot technology, specifically relating to a waterproof geared motor for a cleaning robot. Background Technology

[0002] Cleaning robots, as intelligent household appliances, are widely used in homes and commercial spaces for floor cleaning, window wiping, and mopping, thanks to their automatic navigation, obstacle avoidance, and automatic charging capabilities. This effectively reduces the burden of manual cleaning. The performance of their core drive component—the geared motor—directly affects the robot's operational stability and lifespan. Because cleaning robots often operate in humid environments (such as bathrooms, kitchens, and slippery public areas), and may even come into contact with splashes or short-term water accumulation, stringent requirements are placed on the waterproof performance of the geared motor.

[0003] Currently, while commercially available geared motors for cleaning robots have incorporated some waterproofing features—for example, Chinese Patent Publication No. CN221151065U discloses a waterproof geared motor for a cleaning robot and a cleaning robot using it—which uses a sealing ring to prevent water from seeping in through the threads via the fit between an external threaded flange and a sealed outer shell—the following key defects remain: insufficient protection at the connection between the junction box and the connecting wires. Existing technologies primarily focus on sealing the motor body and the outer shell. However, the junction box, as a crucial interface for power transmission, often suffers from simple design in its connection structure (such as the wiring port) with the connecting wires. This simplistic design (relying only on a basic sealing ring or lacking a specific waterproofing structure) allows external moisture, dust, and other impurities to easily seep into the box through the gaps in the wiring port, causing corrosion, short circuits, or contamination of internal circuit components, severely impacting the motor's normal operation and lifespan. Therefore, a waterproof mechanism is needed to ensure the geared motor can operate stably in humid environments, preventing water from seeping into the junction box, thereby extending the geared motor's lifespan and ensuring the robot's normal operation.

[0004] In summary, existing geared motors used in cleaning robots have significant shortcomings in waterproof sealing at the wiring terminals. There is an urgent need for a waterproof geared motor that is simple in structure, highly adjustable, and easy to install, in order to meet the requirements for long-term stable operation in humid environments. Utility Model Content

[0005] The purpose of this invention is to provide a waterproof geared motor for a cleaning robot, in order to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a waterproof geared motor for a cleaning robot, including a mounting base, a geared motor body connected to the top of the mounting base, a junction box connected to the top of the geared motor body, a wiring port connected to the outer wall of the junction box, a waterproof component movably connected to the outer wall of the wiring port, the waterproof component including a conical sleeve, screws equally spaced on both sides of the outer wall of the conical sleeve, nuts provided on the outer wall of the screws, and a mounting sleeve provided at the bottom of the conical sleeve.

[0007] The inner wall of the conical sleeve is connected with springs at equal intervals. An adjusting sleeve is provided at the bottom of the springs, and a rubber pad is provided at the bottom of the adjusting sleeve. A rubber block is provided at one end of the inner wall of the conical sleeve.

[0008] The present invention further explains that a conical sleeve is movably connected to the outer wall of the wiring port, and the conical sleeve is fixedly connected to the rubber block. The rubber block and the conical sleeve form an integrated structure, which facilitates the improvement of the tightness of the connection between the conical sleeve and the wiring port under the action of the rubber block.

[0009] This utility model further illustrates that the bottom of the conical sleeve is movably connected to an installation sleeve. The screw is threadedly connected to both the conical sleeve and the installation sleeve. The screw and nut are also threadedly connected. Through the cooperation between the screw and the nut, the conical sleeve and the installation sleeve can be easily installed and disassembled during use, thus facilitating their replacement. By setting the conical sleeve and the installation sleeve, the tightness of the connection between the connecting wire and the terminal is improved during use, preventing external impurities and moisture from entering the junction box and causing damage or contamination to the internal components, thereby affecting their function and improving the overall safety of use.

[0010] This utility model further explains that the spring and the adjusting sleeve are fixedly connected, the adjusting sleeve and the rubber pad are fixedly connected, and the adjusting sleeve and the rubber pad form an integrated structure. According to the size of the connecting line, the adjusting sleeve compresses the spring. Under the extension and rebound of the spring, the adjusting sleeve is driven to extend and retract to the designated position, thereby fixing the connecting line. Under the action of the rubber pad, the overall protective performance of the adjusting sleeve is improved.

[0011] This utility model further illustrates that mounting slots are provided at the four corners of the top of the mounting base, and a mounting cover is movably connected to the top of the junction box. Screws are threadedly connected to the four corners of the mounting cover, and the screws are threadedly connected to the junction box. By providing mounting slots, it is convenient to install and fix the mounting base by using the connecting parts, thus improving the overall ease of use. By providing screws, it is convenient to install and remove the mounting cover, thereby facilitating the maintenance of the components inside the junction box.

[0012] This utility model further illustrates that a limiting frame is fixedly connected to the bottom of the mounting cover, and a sealing ring is fixedly connected to the outer wall of the limiting frame. Under the action of the sealing ring, the tightness of the connection between the mounting cover and the junction box is improved, preventing dust and moisture from entering the interior of the junction box, thereby causing damage to the internal components and affecting their use, and improving the overall ease of use.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] (1) By setting waterproof components, the connecting wire is connected to the terminal. After installation, the conical sleeve and the mounting sleeve are installed on the outer wall of the terminal respectively. The rubber block is used to improve the tightness of the connection between the conical sleeve and the terminal. Then the conical sleeve and the mounting sleeve are pressed, and the spring is squeezed by the adjusting sleeve according to the size of the connecting wire. Under the extension and rebound of the spring, the adjusting sleeve is moved to the specified position, thereby fixing the connecting wire. The rubber pad is used to improve the overall protection of the adjusting sleeve. Then the screw is connected to the inside of the conical sleeve and the mounting sleeve by rotating the screw thread. The screw nut is connected to the outer wall of the screw thread to lock it, thereby fixing the conical sleeve and the mounting sleeve. The adjusting sleeve is used to fix the connecting wire, improving the tightness of the connection between the connecting wire and the terminal. This prevents external impurities and moisture from entering the inside of the junction box, causing damage or contamination to the internal components and affecting their function, thereby improving the overall safety and sealing of the use.

[0015] (2) By setting the cooperation between the mounting cover, screw, limit frame and sealing ring, the mounting cover is placed on the top of the junction box during use, and then the screw is rotated to connect to the inside of the junction box to install and fix the mounting cover. The sealing ring improves the tightness of the connection between the mounting cover and the junction box, prevents dust and moisture from entering the inside of the junction box, and improves the overall safety of use. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the waterproof component of this utility model;

[0019] Figure 3 This is a cross-sectional view of the junction box of this utility model.

[0020] In the diagram: 1. Mounting base; 2. Mounting slot; 3. Gear motor body; 4. Junction box; 5. Mounting cover; 6. Screw; 7. Waterproof component; 701. Conical sleeve; 702. Screw; 703. Nut; 704. Mounting sleeve; 705. Adjusting sleeve; 706. Rubber pad; 707. Spring; 708. Rubber block; 8. Wiring port; 9. Limit frame; 10. Sealing ring. Detailed Implementation

[0021] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-3 The present invention discloses a waterproof geared motor for a cleaning robot, comprising a mounting base 1, a geared motor body 3 connected to the top of the mounting base 1, a junction box 4 connected to the top of the geared motor body 3, a wiring port 8 connected to the outer wall of the junction box 4, a waterproof component 7 movably connected to the outer wall of the wiring port 8, the waterproof component 7 comprising a conical sleeve 701, screws 702 equally spaced on both sides of the outer wall of the conical sleeve 701, nuts 703 on the outer wall of the screws 702, and a mounting sleeve 704 at the bottom of the conical sleeve 701.

[0023] Springs 707 are connected at equal intervals to the inner wall of the conical sleeve 701. An adjusting sleeve 705 is provided at the bottom of the springs 707. A rubber pad 706 is provided at the bottom of the adjusting sleeve 705. A rubber block 708 is provided at one end of the inner wall of the conical sleeve 701.

[0024] The present invention further explains that a conical sleeve 701 is movably connected to the outer wall of the wiring port 8. The conical sleeve 701 is fixedly connected to the rubber block 708. The rubber block 708 and the conical sleeve 701 form an integrated structure. Under the action of the rubber block 708, the tightness of the connection between the conical sleeve 701 and the wiring port 8 is easily improved.

[0025] This utility model further illustrates that the bottom of the conical sleeve 701 is movably connected to the mounting sleeve 704. The screw 702 is threadedly connected to both the conical sleeve 701 and the mounting sleeve 704. The screw 702 is also threadedly connected to the nut 703. By installing the conical sleeve 701 and the mounting sleeve 704 onto the outer wall of the wiring port 8, and then pressing the conical sleeve 701 and the mounting sleeve 704, the spring 707 is compressed via the adjusting sleeve 705 according to the size of the connecting wire. The extension and retraction of the spring 707 causes the adjusting sleeve 705 to extend and retract to a specified position. The position is fixed to secure the connecting wire. Then, the screw 702 is threaded to the inside of the tapered sleeve 701 and the mounting sleeve 704. The screw 703 is threaded to the outer wall of the screw 702 to lock it in place, thereby fixing the tapered sleeve 701 and the mounting sleeve 704. The connecting wire is fixed by the adjusting sleeve 705, which improves the tightness of the connection between the connecting wire and the terminal 8. This prevents external impurities and moisture from entering the inside of the junction box 4, which could damage or contaminate the internal components and affect their function, thus improving the overall safety of use.

[0026] This utility model further explains that the spring 707 and the adjusting sleeve 705 are fixedly connected, and the adjusting sleeve 705 and the rubber pad 706 are fixedly connected. The adjusting sleeve 705 and the rubber pad 706 form an integrated structure. According to the size of the connecting wire, the adjusting sleeve 705 compresses the spring 707. Under the extension and rebound of the spring 707, the adjusting sleeve 705 is driven to extend and retract to the designated position, thereby fixing the connecting wire. The rubber pad 706 is used to improve the overall protective performance of the adjusting sleeve 705.

[0027] This utility model further explains that mounting slots 2 are provided at the four corners of the top of the mounting base 1, and mounting cover 5 is movably connected to the top of the junction box 4. Screws 6 are threadedly connected to the four corners of the mounting cover 5. The screws 6 are threadedly connected to the junction box 4. By placing the mounting base 1 on top of the object to be installed, the connector is connected to the inside of the object through the mounting slots 2, thereby installing and fixing the mounting base 1. By placing the mounting cover 5 on top of the junction box 4, the screws 6 are rotated and threaded to the inside of the junction box 4, thereby installing and fixing the mounting cover 5. By setting the screws 6, it is easy to install and remove the mounting cover 5 during use, thereby facilitating the maintenance of the components inside the junction box 4.

[0028] This utility model further explains that the bottom of the mounting cover 5 is fixedly connected to a limiting frame 9, and the outer wall of the limiting frame 9 is fixedly connected to a sealing ring 10. Under the action of the sealing ring 10, the tightness of the connection between the mounting cover 5 and the junction box 4 is improved, preventing dust and moisture from entering the interior of the junction box 4, thereby causing damage to the internal components and affecting the use, and improving the overall ease of use.

[0029] In use, first place the mounting base 1 on top of the object to be installed, then connect the connector to the inside of the object through the mounting groove 2 to install and fix the mounting base 1. Then, connect the connecting wire to the terminal 8 according to the user's needs. After installation, install the conical sleeve 701 and the mounting sleeve 704 onto the outer wall of the terminal 8 respectively. Use the rubber block 708 to improve the tightness of the connection between the conical sleeve 701 and the terminal 8. Then press the conical sleeve 701 and the mounting sleeve 704, and compress the spring 707 through the adjusting sleeve 705 according to the size of the connecting wire. Under the extension and rebound of the spring 707, the adjusting sleeve 705 is moved to the specified position to fix the connecting wire. Use the rubber pad 706 to lift the adjusting sleeve 705. For the protective function of the body, the screw 702 is threaded to the inside of the conical sleeve 701 and the mounting sleeve 704. The screw 703 is threaded to the outer wall of the screw 702 to lock it, thereby fixing the conical sleeve 701 and the mounting sleeve 704. The connecting wire is fixed by the adjusting sleeve 705 to improve the tightness of the connection between the connecting wire and the terminal 8. Finally, the mounting cover 5 is placed on the top of the junction box 4, and the screw 6 is threaded to the inside of the junction box 4 to install and fix the mounting cover 5. The sealing ring 10 is used to improve the tightness of the connection between the mounting cover 5 and the junction box 4, preventing dust and moisture from entering the inside of the junction box 4.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A waterproof geared motor for a cleaning robot, comprising a mounting base (1), characterized in that: The top of the mounting base (1) is connected to the geared motor body (3), the top of the geared motor body (3) is connected to the junction box (4), the outer wall of the junction box (4) is connected to the wiring port (8), the outer wall of the wiring port (8) is movably connected to the waterproof component (7), the waterproof component (7) includes a conical sleeve (701), the two sides of the outer wall of the conical sleeve (701) are equally spaced with screws (702), the outer wall of the screws (702) is provided with nuts (703), and the bottom of the conical sleeve (701) is provided with a mounting sleeve (704). The inner wall of the conical sleeve (701) is connected with springs (707) at equal intervals. An adjusting sleeve (705) is provided at the bottom of the spring (707). A rubber pad (706) is provided at the bottom of the adjusting sleeve (705). A rubber block (708) is provided at one end of the inner wall of the conical sleeve (701).

2. The waterproof geared motor for a cleaning robot according to claim 1, characterized in that: The outer wall of the wiring port (8) is movably connected to a conical sleeve (701), and the conical sleeve (701) is fixedly connected to the rubber block (708). The rubber block (708) and the conical sleeve (701) form an integrated structure.

3. The waterproof geared motor for a cleaning robot according to claim 2, characterized in that: The bottom of the conical sleeve (701) is movably connected to the mounting sleeve (704). The screw (702) is threadedly connected to both the conical sleeve (701) and the mounting sleeve (704). The screw (702) is threadedly connected to the nut (703).

4. The waterproof geared motor for a cleaning robot according to claim 1, characterized in that: The spring (707) is fixedly connected to the adjusting sleeve (705), and the adjusting sleeve (705) is fixedly connected to the rubber pad (706). The adjusting sleeve (705) and the rubber pad (706) form an integrated structure.

5. A waterproof geared motor for a cleaning robot according to claim 4, characterized in that: The mounting base (1) has mounting slots (2) at the four corners of its top. The top of the junction box (4) is movably connected to a mounting cover (5). The four corners of the mounting cover (5) are threaded with screws (6). The screws (6) are threadedly connected to the junction box (4).

6. A waterproof geared motor for a cleaning robot according to claim 5, characterized in that: The bottom of the mounting cover (5) is fixedly connected to a limiting frame (9), and a sealing ring (10) is fixedly connected to the outer wall of the limiting frame (9).