Dust collector accessory capable of telescopically controlling flexibility and suction range of bristles
By adjusting the density of the bristles through the combination of the inner cylinder and the pressure cylinder, the problem of uncontrollable bristle flexibility is solved, enhancing the adaptability and suction effect of the vacuum cleaner.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO DECHANG ELECTRICAL MACHINERY MFG CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-21
AI Technical Summary
The flexibility of the bristles in existing vacuum cleaner accessories cannot be controlled, making them unsuitable for different usage environments and causing air leakage problems.
A vacuum cleaner accessory with retractable bristle flexibility and suction range was designed. Through the combination structure of inner cylinder and pressure cylinder, the density of bristles can be adjusted by using guide grooves and guide components, which enhances the flexibility of bristles, concentrates air volume, and reduces air leakage.
It achieves controllable bristle flexibility, adapts to different environments, reduces air leakage, and improves dust collection efficiency.
Smart Images
Figure CN224140382U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of vacuum cleaner accessories, and in particular to a vacuum cleaner accessory that can extend and control the flexibility of the bristles and the range of suction power. Background Technology
[0002] Vacuum cleaners can be classified into upright, canister, and portable types according to their structure. The working principle of a vacuum cleaner is that an electric motor drives the blades to rotate at high speed, creating negative air pressure in the sealed shell to suck up dust and debris. Vacuum cleaners can have many types of nozzles, including brush heads made of long, soft bristles, which are suitable for cleaning curtains, walls, etc.
[0003] Currently, vacuum cleaner accessories with brushes are common. However, the flexibility of the brush bristles cannot be controlled. Bristles that are too hard or too soft cannot adapt to various usage environments. At the same time, the airflow cannot be adjusted and controlled, resulting in serious air leakage problems. Utility Model Content
[0004] This invention aims to overcome the shortcomings of existing technologies where the flexibility of the brush bristles cannot be controlled, and provides a vacuum cleaner accessory that allows for easy control of the flexibility of the brush bristles and the range of suction power.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A vacuum cleaner accessory with retractable bristle flexibility and suction range control, comprising:
[0007] The inner cylinder has a guide groove on its outer side wall;
[0008] The roller brush assembly has one end detachably connected to one end of the inner cylinder, and the other end is suspended outside the inner cylinder and opens outward in a funnel shape.
[0009] A pressure cylinder is fitted onto the outer wall of one end of the inner cylinder, and a guide component matching a guide groove is fixed on its inner wall. The pressure cylinder extends and retracts along the guide groove on the surface of the inner cylinder via damping, adjusting the density of the bristles at the suspended end of the roller brush assembly. The other end of the inner cylinder is located outside the pressure cylinder. Initially, the portion of the roller brush assembly outside the inner cylinder is flared outwards in a trumpet shape. When the operator controls the pressure cylinder to extend outwards along the guide groove on the surface of the inner cylinder, the bristles of the portion of the roller brush assembly outside the inner cylinder gradually retract inwards and converge due to the inward squeezing action of the inner wall of the pressure cylinder, thereby enhancing the flexibility of the bristles. The amount of extension and retraction of the pressure cylinder determines the flexibility of the bristles, achieving the purpose of easy control of flexibility to adapt to various usage environments and improve practicality. The extension and retraction of the pressure cylinder via the guide component along the guide groove on the surface of the inner cylinder allows for control of the amount of extension and retraction of the pressure cylinder.
[0010] Preferably, the roller brush assembly includes a base, which is hollow inside and connected to the inside of the inner cylinder. One end of the base is detachably connected to one end of the inner cylinder. The other end of the base is provided with a brush body composed of several bristles evenly distributed around the circumference of the base. The brush body is located outside the inner cylinder. One end of the brush body is fixedly connected to the base, and the other end of the brush body is suspended. The brush body opens outward from one end to the other in a funnel shape. The pressure cylinder extends and retracts along the guide groove on the surface of the inner cylinder through a guide member to adjust the density of the bristles of the brush body. The base is hollow and connected to the inner cylinder, facilitating airflow and making it easier for the vacuum cleaner to suck up dust and debris. Since the brush body is composed of several bristles evenly distributed around the circumference of the base, when the operator controls the pressure cylinder to extend outward along the guide groove on the surface of the inner cylinder, the bristles on the brush body gradually contract inward and gather together due to the inward pressure from the inner wall of the pressure cylinder. This enhances the flexibility of the bristles and helps to concentrate the airflow, thereby reducing air leakage and improving the vacuum cleaner's suction effect.
[0011] Preferably, one end of the inner cylinder is located inside the pressure cylinder, and the diameter of the end of the inner cylinder outside the pressure cylinder is larger than the diameter of the end of the inner cylinder inside the pressure cylinder, thereby providing a better limiting effect on the pressure cylinder.
[0012] Preferably, the pressure cylinder includes a cylinder body and a pressure ring. One end of the pressure ring is snapped into one end of the cylinder body. The base is located inside the other end of the pressure ring, and the brush body is located outside the other end of the pressure ring. One end of the inner cylinder is located inside the pressure ring, and the other end of the inner cylinder is located outside the other end of the cylinder body. The guide is fixed to the inner wall of the other end of the cylinder body. When the cylinder body extends outward along the guide groove on the surface of the inner cylinder, the pressure ring extends outward synchronously under the drive of the cylinder body and squeezes several brush bristles inward through its inner wall. This causes several brush bristles on the brush body to gradually contract inward and gather together, thereby enhancing the flexibility of the bristles and facilitating the gathering of airflow, thus reducing air leakage and improving the dust collection effect of the vacuum cleaner.
[0013] Preferably, the guide groove is spiral-shaped, and a groove parallel to its length is formed on the outer wall of one end of the inner cylinder. The guide member matches the groove, with one end of the groove open at one end of the inner cylinder and the other end connected to one end of the guide groove, which is closed. When the guide groove is spiral-shaped, the operator can overcome the damping and rotate the pressure cylinder to extend it outward along the guide groove on the surface of the inner cylinder. This causes several bristles on the brush body to gradually retract inward and converge, enhancing the flexibility of the bristles and facilitating airflow concentration, thereby reducing air leakage and improving the suction power of the vacuum cleaner. When the pressure cylinder is assembled onto the inner cylinder, the groove facilitates the insertion of the guide member into the groove, making installation and disassembly convenient and quick.
[0014] Preferably, the guide component includes an obliquely arranged guide block, the inclination angle of which is the same as the helical angle of the guide groove. The guide block is matched with both the guide groove and the wire groove. One side of the guide block is fixedly connected to the inner wall of the pressure cylinder, and the corresponding other side of the guide block is provided with a positioning groove. A positioning block matching the positioning groove is fixed inside the closed end of the guide groove. The inclination angle of the guide block is the same as the helical angle of the guide groove, which facilitates the expansion and contraction of the pressure cylinder by rotating along the guide groove through the guide block. The wire groove facilitates the insertion or sliding of the guide block, which is convenient for the installation and disassembly of the pressure cylinder. The positioning of the pressure cylinder by matching the positioning block in the guide groove with the positioning groove on the guide block is beneficial for the positioning of the pressure cylinder in the initial state.
[0015] Alternatively, the guide groove is rectangular in shape, with its length aligned with the length of the inner cylinder. One end of the guide groove is open and close to the roller brush assembly, while the other end is closed and away from the roller brush assembly. When the guide groove is rectangular, the operator pushes the pressure cylinder in a straight line, causing it to extend outward along the guide groove on the inner cylinder surface. This causes several bristles on the brush body to gradually retract inward and converge, enhancing the flexibility of the bristles and facilitating airflow concentration, thereby reducing air leakage and improving the vacuum cleaner's suction effect. The open shape of one end of the guide groove, close to the roller brush assembly, facilitates the installation and removal of the pressure cylinder.
[0016] Preferably, the guide component includes a guide block that matches the guide groove. One side of the guide block is fixedly connected to the inner wall of the pressure cylinder, and a glass bead is fixed to the corresponding side of the guide block. The guide groove has several positioning grooves, each matching a glass bead, which are evenly distributed along the length of the guide groove. The glass bead contains a built-in spring, which is existing technology, so its specific structure will not be described here. During the extension and retraction of the pressure cylinder along the guide groove on the inner cylinder surface, the glass bead matches different positioning grooves, which helps to control the extension and retraction of the pressure cylinder.
[0017] The beneficial effects of this utility model are: the pressure cylinder extends and retracts along the guide groove on the surface of the inner cylinder through the guide member, which makes it easy to control the flexibility, so as to adapt to various usage environments and improve practicality; at the same time, it helps to concentrate the air volume, thereby reducing air leakage and improving the dust collection effect of the vacuum cleaner. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the exploded structure of this utility model. Figure 1 ;
[0019] Figure 2 yes Figure 1 Internal structure diagram;
[0020] Figure 3 yes Figure 1 Internal structure diagram during assembly;
[0021] Figure 4 yes Figure 2 Enlarged view of the structure at point A in the middle;
[0022] Figure 5 yes Figure 1 Enlarged view of the structure at point B;
[0023] Figure 6 This is a schematic diagram of the exploded structure of this utility model. Figure 2 ;
[0024] Figure 7 yes Figure 6 Internal structure diagram;
[0025] Figure 8 yes Figure 6 Internal structure diagram during assembly;
[0026] Figure 9 yes Figure 8 Enlarged view of the structure at point C.
[0027] In the diagram: 1. Inner cylinder, 2. Guide groove, 3. Roller brush assembly, 4. Pressure cylinder, 5. Guide component, 6. Base, 7. Brush body, 8. Cylinder body, 9. Pressure ring, 10. Glass bead, 11. Wire groove, 12. Guide block, 13. Positioning groove, 14. Positioning block. Detailed Implementation
[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “upper,” “lower,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “below” other elements or features would be fixed “upper” to other elements or features. Thus, the exemplary term “lower” can include both upper and lower orientations. The device may be fixed in other ways (rotated 90 degrees or located in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.
[0031] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.
[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 In the embodiments described, a vacuum cleaner accessory with retractable bristle flexibility and suction range control includes an inner cylinder 1 with a guide groove 2 on its outer side wall; a roller brush assembly 3, one end of which is detachably connected to one end of the inner cylinder 1, and the other end of which is suspended outside the inner cylinder 1 and opens outward in a funnel shape; and a pressure cylinder 4, which is sleeved on the outer side wall of one end of the inner cylinder 1, and a guide member 5 matching the guide groove 2 is fixed on its inner side wall. The pressure cylinder 4 adjusts the bristle density of the suspended end of the roller brush assembly 3 by damping and extending along the guide groove 2 on the surface of the inner cylinder 1 through the guide member 5. The other end of the inner cylinder 1 is located outside the pressure cylinder 4.
[0033] The roller brush assembly 3 includes a base 6, which is hollow inside and connected to the inside of the inner cylinder 1. One end of the base 6 is detachably connected to one end of the inner cylinder 1. The other end of the base 6 is provided with a brush body 7, which is composed of several bristles evenly distributed around the circumference of the base 6. The brush body 7 is located outside the inner cylinder 1. One end of the brush body 7 is fixedly connected to the base 6, and the other end of the brush body 7 is suspended. The brush body 7 opens outward from one end to the other end in a trumpet shape. The pressure cylinder 4 extends and retracts along the guide groove 2 on the surface of the inner cylinder 1 through the guide member 5 to adjust the density of the bristles of the brush body 7.
[0034] One end of the inner cylinder 1 is located inside the pressure cylinder 4, and the diameter of the end of the inner cylinder 1 located outside the pressure cylinder 4 is larger than the diameter of the end located inside the pressure cylinder 4.
[0035] The pressure cylinder 4 includes a cylinder body 8 and a pressure ring 9. One end of the pressure ring 9 is snapped to one end of the cylinder body 8. The base 6 is located inside the other end of the pressure ring 9. The brush body 7 is located outside the other end of the pressure ring 9. One end of the inner cylinder 1 is located inside the pressure ring 9, and the other end of the inner cylinder 1 is located outside the other end of the cylinder body 8. The guide 5 is fixed to the inner wall of the other end of the cylinder body 8.
[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the guide groove 2 is spiral in shape. A groove 11 parallel to its length direction is provided on the outer wall of one end of the inner cylinder 1. The guide member 5 matches the groove 11. One end of the groove 11 is open and located at one end of the inner cylinder 1. The other end of the groove 11 is connected to one end of the guide groove 2. The other end of the guide groove 2 is closed.
[0037] like Figure 4 and Figure 5 As shown, the guide component 5 includes a guide block 12 arranged at an angle. The inclination angle of the guide block 12 is the same as the helical angle of the guide groove 2. The guide block 12 is matched with the guide groove 2 and the wire groove 11 respectively. One side of the guide block 12 is fixedly connected to the inner wall of the pressure cylinder 4. The other side of the guide block 12 is provided with a positioning groove 13. A positioning block 14 matching the positioning groove 13 is fixed in one closed end of the guide groove 2.
[0038] like Figure 6 , Figure 7 and Figure 8 As shown, the guide groove 2 is rectangular in shape, and the length direction of the guide groove 2 is the same as the length direction of the inner cylinder 1. One end of the guide groove 2 is close to the roller brush assembly 3 and is open, while the other end of the guide groove 2 is far away from the roller brush assembly 3 and is closed.
[0039] like Figure 9As shown, the guide member 5 includes a guide block 12 that matches the guide groove 2. One side of the guide block 12 is fixedly connected to the inner wall of the pressure cylinder 4, and a glass bead 10 is fixed on the other side of the guide block 12. The guide groove 2 is provided with a number of positioning grooves 13 that match the glass bead 10. The number of positioning grooves 13 are evenly distributed along the length direction of the guide groove 2.
[0040] In the first embodiment, in the initial state, the brush body 7, which is composed of several bristles evenly distributed around the base 6, opens outward from one end to the other in a trumpet shape. When the guide groove 2 is spiral in shape, the operator can rotate the pressure cylinder 4 by overcoming the damping, so that it can rotate and extend along the guide groove 2 through the guide block 12. This causes the bristles on the brush body 7 to gradually contract inward and gather together, thereby enhancing the flexibility of the bristles and facilitating the gathering of air volume, thus reducing air leakage and improving the suction power of the vacuum cleaner. When the pressure cylinder 4 is assembled onto the inner cylinder 1, the wire groove 11 facilitates the insertion of the guide block 12 from the wire groove 11 and its engagement with the guide groove 2, making installation and disassembly convenient and quick.
[0041] In the second embodiment, in the initial state, the brush body 7, composed of several bristles evenly distributed around the base 6, opens outwards from one end to the other in a funnel shape. When the guide groove 2 is rectangular, the operator pushes the pressure cylinder 4 linearly, causing it to extend outwards along the guide groove 2 on the surface of the inner cylinder 1 via the guide block 12. This causes the bristles on the brush body 7 to gradually retract inwards and converge, enhancing the flexibility of the bristles and facilitating airflow concentration, thereby reducing air leakage and improving the vacuum cleaner's suction effect. One end of the guide groove 2 is close to the roller brush assembly 3 and is open, facilitating the installation and removal of the pressure cylinder 4. During the extension and retraction of the pressure cylinder 4 along the guide groove 2 on the surface of the inner cylinder 1, the glass beads 10 match different positioning grooves 13, facilitating control of the extension and retraction of the pressure cylinder 4. The glass beads 10 have built-in springs, which is existing technology, so their specific structure will not be described here.
[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention 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 the present invention.
Claims
1. A cleaning tool accessory for a vacuum cleaner for providing a range of bristle flexibility and suction control, characterised in that, include: Inner cylinder (1), the outer side wall of the inner cylinder (1) is provided with guide groove (2); The roller brush assembly (3) has one end detachably connected to one end of the inner cylinder (1), and the other end is suspended outside the inner cylinder (1) and opens outward in a funnel shape. The pressure cylinder (4) is sleeved on the outer side wall of one end of the inner cylinder (1), and a guide (5) matching the guide groove (2) is fixed on its inner side wall. The pressure cylinder (4) is damped and extended along the guide groove (2) on the surface of the inner cylinder (1) by the guide (5) to adjust the density of the brush bristles at the suspended end of the roller brush assembly (3). The other end of the inner cylinder (1) is located outside the pressure cylinder (4).
2. A cleaning tool accessory according to claim 1, wherein, The roller brush assembly (3) includes a base (6), which is hollow inside and connected to the inside of the inner cylinder (1). One end of the base (6) is detachably connected to one end of the inner cylinder (1). The other end of the base (6) is provided with a brush body (7) composed of several bristles evenly distributed around the circumference of the base (6). The brush body (7) is located outside the inner cylinder (1). One end of the brush body (7) is fixedly connected to the base (6). The other end of the brush body (7) is suspended. The brush body (7) opens outward from one end to the other end in a trumpet shape. The pressure cylinder (4) extends and retracts along the guide groove (2) on the surface of the inner cylinder (1) through the guide member (5) to adjust the density of the bristles of the brush body (7).
3. A cleaning tool attachment according to claim 1, wherein the cleaning tool attachment is a cleaning tool attachment according to any one of claims 2 to 4. One end of the inner cylinder (1) is located inside the pressure cylinder (4), and the diameter of the end of the inner cylinder (1) located outside the pressure cylinder (4) is greater than the diameter of the end located inside the pressure cylinder (4).
4. A vacuum cleaner accessory with retractable bristle flexibility and suction range as described in claim 2, characterized in that, The pressure cylinder (4) includes a cylinder body (8) and a pressure ring (9). One end of the pressure ring (9) is snapped to one end of the cylinder body (8). The base (6) is located inside the other end of the pressure ring (9). The brush body (7) is located outside the other end of the pressure ring (9). One end of the inner cylinder (1) is located inside the pressure ring (9). The other end of the inner cylinder (1) is located outside the other end of the cylinder body (8). The guide (5) is fixed to the inner wall of the other end of the cylinder body (8).
5. A cleaning tool accessory according to claim 1 or 2 or 3 or 4, wherein, The guide groove (2) is spiral in shape. A groove (11) parallel to its length direction is provided on the outer side wall of one end of the inner cylinder (1). The guide member (5) matches the groove (11). One end of the groove (11) is open and located at one end of the inner cylinder (1). The other end of the groove (11) is connected to one end of the guide groove (2). The other end of the guide groove (2) is closed.
6. A vacuum cleaner accessory with retractable bristle flexibility and suction range as described in claim 5, characterized in that, The guide (5) includes a guide block (12) arranged at an angle. The tilt angle of the guide block (12) is the same as the helical angle of the guide groove (2). The guide block (12) is matched with the guide groove (2) and the wire groove (11) respectively. One side of the guide block (12) is fixedly connected to the inner wall of the pressure cylinder (4). The other side of the guide block (12) is provided with a positioning groove (13). A positioning block (14) matching the positioning groove (13) is fixed in one closed end of the guide groove (2).
7. A cleaning tool accessory according to claim 1 or 2 or 3 or 4, wherein, The guide groove (2) is rectangular in shape. The length direction of the guide groove (2) is the same as the length direction of the inner cylinder (1). One end of the guide groove (2) is close to the roller brush assembly (3) and is open. The other end of the guide groove (2) is far away from the roller brush assembly (3) and is closed.
8. A cleaning tool accessory according to claim 7, wherein the cleaning tool accessory is a cleaning tool accessory according to any one of claims 1 to 6. The guide (5) includes a guide block (12) that matches the guide groove (2). One side of the guide block (12) is fixedly connected to the inner wall of the pressure cylinder (4). A glass bead (10) is fixed on the other side of the guide block (12). The guide groove (2) is provided with a number of positioning grooves (13) that match the glass bead (10). The number of positioning grooves (13) are evenly distributed along the length of the guide groove (2).