Pool robot equipped with inlet scraper
By designing scraper mounting lugs at the inlet of the pool robot, the scraper can move to the rear of the inlet under the action of friction, which solves the problem of the inlet being blocked in traditional pool cleaning robots, and achieves all-round cleaning and efficient dirt suction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING TENGYA ROBOT TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-30
Smart Images

Figure CN224432130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a swimming pool robot equipped with a water inlet scraper, belonging to the field of cleaning tool technology. Background Technology
[0002] During operation, pool cleaning robots use negative pressure to suck dirt into the machine through the inlet. However, while traditional pool cleaning robots are equipped with two inlets, each with a scraper, only one scraper is positioned behind the inlet during movement, effectively scraping away the attached dirt. To address this issue, patent CN210768006U proposes a rotating scraper design, allowing both scrapers to effectively scrape away debris during the robot's movement. However, this solution has a significant drawback: while the rotating part ensures the scrapers on both sides function during movement, it also obstructs half of the inlet, preventing it from fully opening and reducing cleaning efficiency. Utility Model Content
[0003] The purpose of this utility model is to overcome the problems existing in the prior art and provide a pool robot equipped with an inlet scraper. During the operation of the pool cleaning robot, the scraper automatically moves to the rear side of the inlet under the action of friction to clean the dirt.
[0004] To solve the above technical problems, the present invention provides a swimming pool robot with an inlet scraper, comprising: a bottom shell, wherein the bottom shell has one or more inlets, and scraper mounting lugs extend downward from both ends of the inlets along their length direction. The scraper includes a support rod and a scraping part extending downward along the support rod, wherein the two ends of the support rod are respectively inserted into and slidably connected to the scraper mounting lugs.
[0005] Furthermore, the scraper mounting lug has an oblong hole along the width direction of the water inlet, and the end of the support rod is inserted into the oblong hole. The length of the support rod is greater than the length of the water inlet, and the length of the oblong hole is greater than the width of the water inlet.
[0006] Furthermore, the water inlet is provided in two parts.
[0007] Furthermore, the cross-section of the support rod is rectangular or circular.
[0008] Furthermore, the end of the support rod is provided with a reduced-diameter chamfer.
[0009] Furthermore, the scraping part is fixedly connected to the support rod, the scraping part is a scraper made of soft material, and the support rod is a rod made of hard material.
[0010] Furthermore, the projections of the scraping section in the direction of travel of the pool robot do not overlap.
[0011] Furthermore, the water inlet is provided at each of the front and rear ends of the bottom shell.
[0012] Compared with the prior art, this utility model achieves the following beneficial effects: 1. By setting scraper mounting lugs at both ends of the water inlet and enabling the scraper to slide, the scraper can better conform to the pool wall during the movement of the pool robot to scrape and wash away dirt. This design allows both scrapers on both sides to play an effective role, improving cleaning efficiency; 2. The waist-shaped hole design of the scraper mounting lugs makes the length of the support rod greater than the length of the water inlet, and the length of the waist-shaped hole is also greater than the width of the water inlet. This structural design ensures that the water inlet is not blocked when the scraper moves to the stop point, thus ensuring that the water inlet can be fully open, further improving the efficiency of suctioning dirt; 3. The rectangular design of the end of the support rod can prevent the support rod from rotating in the waist-shaped hole, and the chamfered end of the support rod with a reduced diameter facilitates the user's disassembly and assembly of the scraper. Attached Figure Description
[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The drawings are provided for reference and illustration only and are not intended to limit the present invention.
[0014] Figure 1 This is a bottom view of the bottom shell and scraper in this utility model;
[0015] Figure 2 This is a perspective view of the bottom shell of this utility model;
[0016] Figure 3 A perspective view of the scraper installed on the bottom shell of this utility model;
[0017] Figure 4 This is a front view of the scraper mounted on the bottom shell of this utility model.
[0018] In the diagram: 1. Bottom shell, 2. Water inlet, 3. Scraper mounting lug, 3a. Waist-shaped hole, 4. Scraper, 4a. Support rod, 4b. Scraping section. Detailed Implementation
[0019] In the following description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", 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 simplifying the description, and do not mean that the device must have a specific orientation.
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0021] This utility model aims to provide a swimming pool robot equipped with an inlet scraper, including a bottom shell 1, with inlets 2 on the front and rear sides of the bottom shell 1, and scraper mounting lugs 3 extending downward from both ends of the inlets 2 along their length. The scraper 4 includes a support rod 4a and a scraping part 4b extending downward along the support rod 4a. The two ends of the support rod 4a are respectively inserted into and slidably connected to the scraper mounting lugs 3. The cross-section of the support rod 4a is rectangular or circular.
[0022] The scraper mounting lug 3 has an oblong hole 3a along the width of the inlet 2. The end of the support rod 4a is inserted into the oblong hole 3a and extends out of the oblong hole 3a. The length of the support rod 4a is greater than the length of the inlet 2, and the length of the oblong hole 3a is greater than the width of the inlet 2. The root of the scraping part 4b is fixedly connected to the support rod 4a. The scraping part 4b is made of a sheet-like soft material, while the support rod 4a is made of a hard material. During the forward movement of the pool robot, due to the friction between the scraping part 4b and the pool bottom, the support rod 4a gradually moves along the oblong hole 3a to the rear end of the inlet 2. Since the length of the oblong hole 3a is greater than the width of the inlet 2, the support rod 4a will not block the inlet 2, thus ensuring maximum cleaning efficiency.
[0023] The end of the support rod 4a is provided with a reduced-diameter chamfer to facilitate insertion into the oblong hole 3a during installation.
[0024] The projections of the scraping section 4b onto the direction of travel of the pool robot do not overlap. This ensures that the suction efficiency of the inlet 2 and the scraping efficiency of the scraper 4 are maximized.
[0025] The above description is merely a preferred embodiment of the present utility model, showing and describing the basic principles, main features, and advantages of the present utility model. It is not intended to limit the scope of patent protection of the present utility model. Those skilled in the art should understand that the present utility model is not limited to the above embodiments. In addition to the above embodiments, the present utility model may have other implementations without departing from the spirit and scope of the present utility model. Various changes and improvements to the present utility model are also possible. All technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by the present utility model. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents. Technical features not described in the present utility model can be implemented by or using existing technology, and will not be elaborated here.
Claims
1. A swimming pool robot equipped with an inlet scraper, comprising: The bottom shell has one or more water inlets, characterized in that: both ends of the water inlet extend downward in the length direction and have scraper mounting lugs, the scraper includes a support rod and a scraping part extending downward along the support rod, and the two ends of the support rod are respectively inserted into and slidably connected to the scraper mounting lugs.
2. The swimming pool robot with an inlet scraper according to claim 1, characterized in that: The scraper mounting lug has an oblong hole along the width direction of the water inlet. The end of the support rod is inserted into the oblong hole. The length of the support rod is greater than the length of the water inlet, and the length of the oblong hole is greater than the width of the water inlet.
3. The swimming pool robot with an inlet scraper according to claim 1, characterized in that: There are two water inlets.
4. The swimming pool robot with an inlet scraper according to claim 2, characterized in that: The cross-section of the support rod is rectangular or circular.
5. The swimming pool robot with an inlet scraper according to claim 1, characterized in that: The end of the support rod is provided with a reduced diameter chamfer.
6. The swimming pool robot with an inlet scraper according to claim 1, characterized in that: The scraping part is fixedly connected to the support rod. The scraping part is a scraper made of soft material, and the support rod is a rod made of hard material.
7. The swimming pool robot with an inlet scraper according to claim 1, characterized in that: The projections of the scraping section in the direction of travel of the pool robot do not overlap.
8. The swimming pool robot with an inlet scraper according to claim 3, characterized in that: The water inlet is located at each of the front and rear ends of the bottom shell.
Citation Information
Patent Citations
Water inlet scraper of swimming pool cleaning machine
CN210768006U