A dust hole structure of a bed surface cleaning robot integrated with a wind guide fin

Abstract

The utility model discloses a bed surface cleaning robot dust absorption hole structure of wind rotation guide piece integration is provided with the fixed air -guiding cavity in the dust absorption module, and is detachably connected with it, be equipped with the wind rotation guide vane in the dust absorption module, the top of wind rotation guide vane is equipped with the detachable connection's barrier filter screen, the utility model discloses fixed air -guiding cavity and the symmetry conical structure of dust absorption module, the spiral airflow track is formed to the inside guide piece of adhesion, and the double -way negative pressure layout of cooperation first, second air -inducing interface strengthens axial traction and supplements lateral negative pressure again, improves airflow convergence efficiency and overall negative pressure intensity, and wind rotation guide vane is distributed with 15 degree -25 degree inclination angle annular array, can guide airflow to form stable spiral swirl quickly, and the filter core is intercepted the thread, hair and other easy to entangle impurities through the mesh structure of different aperture, and barrier filter screen adopts micropore filter cloth to capture dust mites and fine dander, realizes the comprehensive purification from rough filter to fine filter.

Description

Technical Field

[0001] This utility model mainly relates to the field of cleaning robot technology, specifically a dust suction hole structure for a bed cleaning robot with integrated cyclone guide plate. Background Technology

[0002] A cleaning robot is an automated device that integrates autonomous movement, intelligent navigation, and cleaning execution functions. It can complete cleaning tasks within a specific space without continuous human intervention. It typically relies on sensors (such as infrared, laser, and vision sensors) to perceive the environment and obstacles, plans cleaning paths through preset programs, and uses core execution mechanisms such as vacuuming, sweeping, mopping, and mite removal. It is widely used in homes, offices, and public areas. As a subcategory of cleaning robots, bed cleaning robots are specialized cleaning devices designed specifically for soft fabric surfaces such as mattresses, sofas, and beds. Addressing the tendency for fabric surfaces to retain dust, mites, hair, dander, and other contaminants, it optimizes its body structure and cleaning modes to adapt to the support characteristics of soft surfaces, avoiding damage to the fabric during cleaning.

[0003] One of the key structural components enabling bed cleaning robots to perform their core cleaning functions is the suction port structure. This is the airflow channel component on the bottom of the robot that contacts the cleaning surface. It is typically designed with a specific shaped opening, one end connecting to the robot's internal negative pressure suction system, and the other end facing the cleaning surface. Its core function is to use the airflow generated by negative pressure to suck dust and debris from the fabric surface and deeper layers into the dust collection device. Existing bed cleaning robot suction port structures generally suffer from airflow guidance limitations, often relying on only a single airflow interface. This makes it difficult to form a concentrated and stable airflow trajectory within the planar cleaning area, resulting in insufficient negative pressure intensity, low convergence efficiency, and a lack of a pre-filter at the front end, leading to a concentrated filtration load at the rear end and affecting long-term efficiency. Utility Model Content

[0004] This utility model addresses the problem of overly simplistic existing solutions by providing a dust suction hole structure for a bed cleaning robot with an integrated cyclone guide plate. This solves the technical problems mentioned in the background, such as limited airflow guidance, reliance on a single airflow interface, difficulty in forming a concentrated and stable airflow trajectory within the planar cleaning area, resulting in insufficient negative pressure and low convergence efficiency.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A dust suction hole structure for a bed cleaning robot with integrated cyclone guide vanes includes a fixed air guide cavity and a dust suction module. The fixed air guide cavity is located above the dust suction module and is detachably connected to it. The dust suction module is provided with cyclone guide vanes, and a detachably connected barrier filter is provided above the cyclone guide vanes. A dust suction port is opened at the axis of the dust suction module, and a rubber strip with an annular edging is provided on the outer bottom wall of the dust suction module.

[0006] Furthermore, the fixed air guide cavity is circular in shape and tapered upward along the axial direction, forming a conical cavity inside. The dust collection module and the fixed air guide cavity are arranged symmetrically, and the two together form a channel for airflow to converge and be transmitted by connecting vertically. A first air intake port is provided through the axis at the top of the fixed air guide cavity, and a second air intake port is provided through one side of the fixed air guide cavity.

[0007] Furthermore, the inner wall of the fixed air guide cavity is provided with a plurality of protruding locking structures along the circumference, and the top outer wall of the dust collection module is provided with a guide groove that cooperates with the plurality of protruding locking structures.

[0008] Furthermore, the suction port has an inlet filter element threadedly connected to the inner wall near the bottom of the suction module. The inlet filter element includes a filter tank and a cover plate. One end of the cover plate is rotatably connected to the filter tank, and the other end is connected to the corresponding slot on the inner wall of the filter tank through an elastic buckle fixed by a spring on its surface.

[0009] Furthermore, the outer wall of the filter tank is threadedly connected to the inner wall of the dust suction port. The filter tank has a conical structure that gradually tapers upward along its axial direction. The peripheral wall and top are provided with a first mesh structure. The cover plate covers the opening of the filter tank, and the surface of the cover plate is provided with a second mesh structure. The aperture of the second mesh is larger than that of the first mesh.

[0010] Furthermore, the barrier filter is shaped in the same direction as the cone of the fixed air guide cavity. The barrier filter consists of a frame and a filter cloth covering the frame. The surface of the filter cloth is distributed with microporous structures. The frame is threaded to the inner wall of the dust collection module. There is a gap between the barrier filter and the cyclone guide blades below it.

[0011] Furthermore, the cyclone guide vanes are arranged in a circular array around the center point of the dust suction port, and are spaced at equal angles. The cyclone guide vanes are inclined at an angle of 15° to 25° with the center line of the dust suction module, and extend upward from the inner edge of the dust suction port along the airflow inlet direction.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The symmetrical conical structure of the fixed air guide cavity and the dust collection module, combined with the internal guide plate to form a spiral airflow trajectory, and the dual negative pressure layout of the first and second air intake ports, not only strengthens the axial traction but also supplements the lateral negative pressure, improving the airflow convergence efficiency and overall negative pressure intensity. The cyclone guide vanes are distributed in a ring array with an inclination angle of 15°-25°, which can quickly guide the airflow to form a stable spiral vortex. Impurities are separated by centrifugal force. The inlet filter cartridge intercepts easily entangled impurities such as lint and hair through a mesh structure with different pore sizes. The barrier filter uses microporous filter cloth to capture dust mites and fine dander, achieving comprehensive purification from coarse filtration to fine filtration, while avoiding impurities from entangled in the blades and reducing the subsequent filtration load.

[0013] 2. The fixed air guide chamber and the dust collection module are connected by a snap-fit ​​structure and guide groove, and can be separated by rotation. The inlet filter is connected by threads, and the cover plate can be opened and closed quickly by elastic buckles. The barrier filter is fixed to the inner wall of the dust collection module by threads, which facilitates timely cleaning of accumulated dust. In addition, the annular edge rubber strip on the bottom wall of the dust collection module can form a sealing area with the bed surface to ensure negative pressure stability. The gap between the cyclone guide vanes and the barrier filter not only avoids the accumulation of impurities, but also ensures smooth airflow. The adaptable structure of each component further improves the smoothness of the dust collection structure in future operation.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the fixed air guide cavity and dust collection module structure of this utility model; Figure 3 This is a schematic diagram of the distribution structure of the wind turbine guide vanes of this utility model; Figure 4 This is a schematic diagram of the inlet filter element structure of this utility model; Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0016] Numbering on the map: 1. Fixed air guide cavity; 11. First air intake port; 12. Second air intake port; 2. Dust collection module; 21. Cyclone guide vane; 22. Barrier filter screen; 23. Dust collection port; 24. Rubber strip; 25. Inlet filter element; 251. Filter tank; 252. Cover plate; 2521. Elastic buckle. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Please refer to the appendix carefully. Figure 1-6 A dust suction hole structure for a bed cleaning robot with integrated cyclone guide vanes includes a fixed air guide cavity 1 and a dust suction module 2. The fixed air guide cavity 1 is located above the dust suction module 2 and is detachably connected to it. The dust suction module 2 is provided with cyclone guide vanes 21. A detachably connected barrier filter 22 is provided above the cyclone guide vanes 21. A dust suction port 23 is opened at the axis of the dust suction module 2. The outer bottom wall of the dust suction module 2 is provided with an annular rubber strip 24.

[0020] In this embodiment, as Figure 1 and Figure 2 As shown, the fixed air guide cavity 1 is circular in shape and tapered upward along the axis, forming a conical cavity inside. The dust collection module 2 and the fixed air guide cavity 1 are arranged symmetrically, and the two together form a channel for airflow to converge and be transmitted by connecting the upper and lower parts. The first air intake port 11 is provided through the axis at the top of the fixed air guide cavity 1, and the second air intake port 12 is provided through one side of the fixed air guide cavity 1.

[0021] With the above structure, the fixed air guide cavity 1 is circular and tapered upward along the axis. It and the dust collection module 2 with a symmetrical structure are connected to form an airflow convergence and transmission channel. This channel can conform to the flow trajectory of the spiral airflow, reduce turbulence and resistance during airflow transmission, and ensure the stability and continuity of the swirling state. The first air intake port 11 and the second air intake port 12 on the side form a dual-path air intake layout. The axial traction of the swirling flow is strengthened by the axial interface, and the lateral negative pressure is supplemented by the side interface. The two work together to improve the overall negative pressure intensity and airflow convergence efficiency.

[0022] In this embodiment, as Figure 2 As shown, the inner wall of the fixed air guide cavity 1 is provided with multiple protruding locking structures along the circumference, and the top outer wall of the dust collection module 2 is provided with guide grooves that cooperate with the multiple protruding locking structures.

[0023] With the above structure, the annular protrusion-shaped locking structure on the inner wall of the fixed air guide cavity 1 cooperates with the guide groove on the top outer wall of the dust collection module 2, so that the dust collection module 2 can be quickly assembled and disassembled from the fixed air guide cavity 1 by simply rotating it, without the need for additional tools, which greatly improves the maintenance convenience of the overall structure and facilitates the thorough cleaning of the inside of the dust collection module 2 in the future.

[0024] In this embodiment, as Figure 4 , Figure 5 and Figure 6 As shown, the suction port 23 has an inlet filter element 25 threadedly connected to the inner wall near the bottom of the suction module 2. The inlet filter element 25 includes a filter groove 251 and a cover plate 252. One end of the cover plate 252 is rotatably connected to the filter groove 251, and the other end is connected to the corresponding groove on the inner wall of the filter groove 251 through an elastic buckle 2521 fixed by a spring on its surface.

[0025] The outer wall of the filter tank 251 is threadedly connected to the inner wall of the dust suction port 23. The filter tank 251 has a conical structure that gradually tapers upward along its axial direction. The peripheral wall and top are provided with a first mesh structure. The cover plate 252 covers the opening of the filter tank 251, and the surface of the cover plate 252 is provided with a second mesh structure. The diameter of the second mesh is larger than that of the first mesh.

[0026] Through the above structure, firstly, by setting the inlet filter element 25 at the bottom of the suction port 23, and with the mesh structure of the filter tank 251 and the cover plate 252, the impurities entering can be guided to converge into the tank. Secondly, the structure of the mesh aperture can achieve graded filtration, effectively preventing excessive tangled impurities such as lint and hair, as well as medium-sized particles, from directly entering the suction module 2, thereby reducing the entanglement of the subsequent cyclone guide vanes 21 and ensuring that the vanes always maintain a clean and smooth cyclone guiding state. It can also reduce the filtration load of the barrier filter 22 in the later stage. At the same time, the threaded connection between the filter tank 251 and the suction port 23, and the detachable structure of the cover plate 252 and the filter tank 251 through the elastic buckle 2521, allow the inlet filter element 25 to be quickly installed and removed, and the internal dust to be cleaned in a timely manner.

[0027] In this embodiment, as Figure 3 and Figure 4 As shown, the barrier filter 22 has a shape consistent with the conical direction of the fixed air guide cavity 1. The barrier filter 22 is composed of a frame and a filter cloth covering the frame. The surface of the filter cloth is distributed with microporous structure. The frame is threaded to the inner wall of the dust collection module 2. There is a gap between the barrier filter 22 and the cyclone guide vane 21 below it.

[0028] Through the above structure, the barrier filter 22 adopts a shape consistent with the conical direction of the fixed air guide cavity 1, which can conform to the flow path of the spiral airflow. At the same time, the microporous filter cloth (pore size 0.05-0.1mm) (PTFE film and PET non-woven fabric composite substrate) covering its frame can finely filter the airflow after it is separated by the cyclone guide vane 21, effectively intercepting dust mites, fine dander and other tiny impurities, and achieving deep purification of the airflow. The design of the frame being threaded to the inner wall of the dust collection module 2 takes into account both the stability of installation and the convenience of disassembly, which is convenient for later cleaning and maintenance. The reserved gap between it and the lower cyclone guide vane 21 provides sufficient space for cyclone separation, avoids the accumulation of impurities on the top of the vane, and allows the airflow to flow smoothly to the filter cloth under the action of cyclone potential energy, improving the separation efficiency and ensuring that the purified airflow can smoothly enter the channels of the first air intake port 11 and the second air intake port 12.

[0029] In this embodiment, as Figure 3 As shown, the cyclone guide vanes 21 are arranged in a ring array with the center point of the suction port 23 as the center, and are set at equal intervals. The cyclone guide vanes 21 are inclined at an angle of 15° to 25° with the center line of the suction module 2, and extend upward from the inner edge of the suction port 23 along the airflow inlet direction.

[0030] With the above structure, after the fan starts, the first air intake port 11 and the second air intake port 12, which are connected to the fan's suction pipe branch, simultaneously form a dual negative pressure field. The dust suction port 23, which is set at the axis, quickly sucks in impurities from the bed surface under the traction of negative pressure. After the airflow enters, it is immediately guided by the vortex guide vane 21 to form a stable spiral vortex around the axis of the dust suction module 2. At this time, the axial negative pressure traction vortex of the first air intake port 11 converges upward along the axis, while the lateral negative pressure of the second air intake port 12 cuts in from the side of the vortex. The two work together to further enhance the spiral vortex intensity of the airflow, so that the impurities can be separated from the airflow more efficiently in the vortex field with the help of the barrier filter 22 in the middle isolation.

[0031] The specific operating procedure of this utility is as follows: It should be noted that the vacuuming structure parameters are based on the standard models of bed cleaning robots with a body size of 300mm×300mm×80mm, or a diameter of 280mm-320mm and a height of 75-85mm.

[0032] When in use, the fixed air guide cavity 1 is installed in the adapter cavity of the bed cleaning robot, and the dust suction module 2 is located at the bottom of the robot. The annular edge strip 24 on its outer bottom wall fits into the bed surface to form a sealed area, which works with the robot's built-in fan to achieve negative pressure dust suction.

[0033] When the robot moves on the bed surface by means of its wheels, the fan generates a continuous negative pressure through the first air intake port 11 and the second air intake port 12 (which are respectively connected to two branches of the fan suction pipe). Dust mites, dander, and small impurities on the bed surface first come into contact with the inlet filter element 25 under the action of negative pressure. The impurities first pass through the second mesh structure (pore size 2-3mm) on the surface of the cover plate 252, and then enter the filter tank 251. They are further filtered by the first mesh structure (pore size 0.5-1mm) on the periphery and top of the filter tank 251, intercepting larger particles such as lint and hair. The preliminarily purified airflow carries the small impurities into the dust collection module 2 through the dust collection port 23.

[0034] The airflow entering the dust collection module 2 first reaches the area of ​​the cyclone guide vane 21. Under the guidance of the vane, the airflow extends upward along the axis and forms a stable spiral vortex. Centrifugal force is used to throw the remaining larger particles and impurities in the airflow toward the inner wall of the dust collection module 2. The filter screen 22 performs fine filtration of the fine particles in the airflow, further purifying the airflow.

[0035] The purified airflow eventually enters the upper and lower docking channel jointly constructed by the fixed air guide cavity 1 and the dust collection module 2, and is sucked into the fan through the first air intake port 11 and the second air intake port 12, completing the entire dust collection process.

[0036] When maintenance and cleaning are required, if only the inlet filter element 25 needs to be cleaned, the operator can rotate the inlet filter element 25 through the handle at the center of the cover plate 252 to make the filter tank 251 unscrewed from the inner wall of the dust suction port 23 through the threaded structure. If the inside of the filter tank 251 needs to be cleaned, press the elastic buckle 2521 towards the center of the cover plate 252 to pull it out from the corresponding slot on the inner wall of the filter tank 251, and then the cover plate 252 can be opened for internal cleaning.

[0037] To thoroughly clean the inside of the vacuum module 2, rotate the vacuum module 2 so that the guide groove on its top outer wall slides out of the protruding locking structure on the inner wall of the fixed air guide cavity 1, thus separating the vacuum module 2 from the fixed air guide cavity 1. Then, remove the threaded barrier filter 22 to thoroughly clean the surface of the cyclone guide vane 21, the inner wall of the vacuum module 2, and the barrier filter 22. After cleaning, reassemble and reset the vacuum module 2 in reverse order.

[0038] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A dust suction hole structure for a bed surface cleaning robot with integrated cyclone guide vanes, comprising a fixed air guide cavity (1) and a dust suction module (2), characterized in that: The fixed air guide cavity (1) is located above the dust collection module (2) and is detachably connected to it. The dust collection module (2) is provided with a cyclone guide vane (21). A detachably connected barrier filter (22) is provided above the cyclone guide vane (21). A dust collection port (23) is opened at the axis of the dust collection module (2). A rubber strip (24) with an annular edging is provided on the bottom wall of the dust collection module (2).

2. The dust suction hole structure of a bed surface cleaning robot integrated with a cyclone guide plate according to claim 1, characterized in that: The fixed air guide cavity (1) is circular in shape and tapered upward along the axis, forming a tapered cavity inside. The dust collection module (2) and the fixed air guide cavity (1) are arranged in a symmetrical structure. The two together form a channel for airflow to converge and be transmitted by connecting the upper and lower parts. The first air intake port (11) is provided through the axis at the top of the fixed air guide cavity (1), and the second air intake port (12) is provided through one side of the fixed air guide cavity (1).

3. The dust suction hole structure of a bed surface cleaning robot integrated with a cyclone guide plate according to claim 1, characterized in that: The inner wall of the fixed air guide cavity (1) is provided with a plurality of protruding locking structures along the circumference, and the top outer wall of the dust collection module (2) is provided with a guide groove that cooperates with the plurality of protruding locking structures.

4. The dust suction hole structure of a bed surface cleaning robot integrated with a cyclone guide plate according to claim 1, characterized in that: The suction port (23) has an inlet filter element (25) threadedly connected to the inner wall near the bottom of the suction module (2). The inlet filter element (25) includes a filter groove (251) and a cover plate (252). One end of the cover plate (252) is rotatably connected to the filter groove (251), and the other end is connected to the corresponding groove on the inner wall of the filter groove (251) by an elastic buckle (2521) fixed by a spring on its surface.

5. The dust suction hole structure of a bed surface cleaning robot integrated with a cyclone guide plate according to claim 4, characterized in that: The outer wall of the filter tank (251) is threadedly connected to the inner wall of the dust suction port (23). The filter tank (251) has a cone-shaped structure that gradually tapers upward along its axial direction. The peripheral wall and top are provided with a first mesh structure. The cover plate (252) covers the opening of the filter tank (251), and the surface of the cover plate (252) is provided with a second mesh structure. The aperture of the second mesh is larger than that of the first mesh.

6. The dust suction hole structure of a bed surface cleaning robot integrated with a cyclone guide plate according to claim 1, characterized in that: The barrier filter (22) is shaped in the same conical direction as the fixed air guide cavity (1). The barrier filter (22) is composed of a frame and a filter cloth covering the frame. The surface of the filter cloth is distributed with microporous structure. The frame is threaded to the inner wall of the dust collection module (2). There is a gap between the barrier filter (22) and the cyclone guide vane (21) below it.

7. The dust suction hole structure of a bed surface cleaning robot integrated with a cyclone guide plate according to claim 1, characterized in that: The cyclone guide vanes (21) are arranged in a ring array with the center point of the dust inlet (23) as the center and are set at equal angles. The cyclone guide vanes (21) are inclined at an angle of 15° to 25° with the center line of the dust suction module (2) and extend upward from the inner edge of the dust inlet (23) along the airflow inlet direction.

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