Dust extractor brush

Abstract

This utility model discloses a vacuum cleaner brush, including a connector. The connector includes a tube head for connection and a base for fixing. This solution improves the structure of the connector, with the tube head and base being assembled separately. The tube head consists of an upper tube and a lower tube with an end cap. The upper tube and the lower tube are threaded together to facilitate the installation of the end cap. The lower tube is clamped by the end cap and the protruding threaded connection, thereby connecting the tube head to the base. The tube head can rotate relative to the base as needed. When this connector is applied to a vacuum cleaner brush, the tube head rotation structure relative to the base can facilitate cleaning narrower areas.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, specifically to a vacuum cleaner brush. Background Technology

[0002] Vacuum cleaners are common household cleaning tools, and vacuum cleaner brushes are an important component of them. Vacuum cleaner brushes are generally attached to a vacuum cleaner frame and a connector installed on the frame. The connector connects the vacuum cleaner's suction mechanism to the internal cavity of the frame. The connector is usually integrally molded and fixed to the frame with screws, etc. The configuration of the connector and the frame is fixed like a T-shape when viewed from above. This is not convenient for cleaning narrow gaps and needs to be improved. Utility Model Content

[0003] To address at least one of the aforementioned technical deficiencies, this utility model provides the following technical solution:

[0004] This application discloses a vacuum cleaner brush, including a connector. The connector includes a tube head for connection and a base for fixing. The tube head includes an upper tube, a lower tube, and an end cap. The bottom end of the upper tube is connected to the lower tube. The end cap is fitted onto the lower tube and rotatably connected. The end cap is threadedly connected to a protrusion on the top surface of the base and engages with the protrusion to clamp the lower tube. An elastic layer is provided between the top surface of the protrusion and the bottom end surface of the lower tube. A cavity is formed longitudinally at the protrusion and the corresponding base.

[0005] This solution improves the connector structure, with the tube head and base assembled separately. The tube head consists of an upper tube and a lower tube with an end cap. The upper and lower tubes are threaded together to facilitate the installation of the end cap. The lower tube is clamped by the end cap and the protruding threaded connection, which in turn connects the tube head to the base. The tube head can be rotated relative to the base as needed. When this connector is applied to a vacuum cleaner brush, the rotating structure of the tube head relative to the base makes it easier to clean narrow areas.

[0006] Furthermore, the lower tube has a T-shaped cross-section, the upper tube has an L-shaped cross-section, the longitudinal end of the lower tube is threaded to the longitudinal end of the upper tube, the diameter of the horizontal end of the lower tube is larger than the diameter of the longitudinal end of the lower tube, the end cap and the top surface of the protrusion cooperate to clamp the horizontal end of the lower tube, and the size is limited so that the end cap cooperates with the protrusion to clamp the lower tube.

[0007] Furthermore, an elastic layer two is provided at the top surface of the horizontal end of the lower tube. On the one hand, this helps to improve the sealing performance, and on the other hand, the elastic deformation of the elastic layer one and the elastic layer two allows the tube head to be rotated relative to the base.

[0008] Furthermore, the inner diameter of the bottom port of the end cap is greater than or equal to the diameter of the horizontal end of the lower tube, and the inner diameter of the top port of the end cap is smaller than the diameter of the horizontal end of the lower tube. This size limitation is used to prevent the end cap from detaching from the horizontal end of the lower tube.

[0009] Furthermore, fastening holes are provided at both ends of the base, so that the connector can be fixed to the vacuum cleaner brush frame by means of bolts.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. The improved structure of this utility model allows the tube head in the connector to rotate relative to the base, making it convenient to clean narrower areas when applied to a vacuum cleaner brush. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this connector in Example 1;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the connector in Example 1;

[0015] Figure 3 This is a structural diagram of the vacuum cleaner brush;

[0016] The attached figures are labeled as follows:

[0017] 1. Connector; 2. Frame; 10. Pipe head; 11. Base; 100. Upper pipe; 101. End cap; 102. Lower pipe; 103. Elastic layer two; 104. Elastic layer one; 110. Fastening hole; 111. Protrusion; 112. Cavity. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] In this example, the overall structure of the vacuum cleaner brush is as follows: Figure 3 As shown, connector 1 is fixed to the top surface of frame 2. In this example, the structure of connector 1 is as follows: Figure 1 , Figure 2 As shown, specifically, it includes a pipe head 10 for connection and a base 11 for fixing. The base 11 is strip-shaped, and fastening holes 110 are formed at both ends of the base 11. Bolts or the like pass through the fastening holes and are connected to the frame, thereby fixing the joint to the frame. A cylindrical protrusion 111 is formed in the middle of the top surface of the base 11. A cavity 112 is formed longitudinally at the center of the protrusion 111 and the corresponding part of the base 11. The cavity 112 is connected to the pipe cavity of the pipe head and the internal cavity of the frame.

[0021] In this example, the tube head 10 includes an upper tube 100, a lower tube 102, and an end cap 101. The lower tube 102 is connected to the bottom end of the upper tube 100. The cross-section of the lower tube 102 is T-shaped, and the cross-section of the upper tube 100 is L-shaped. The longitudinal end of the lower tube 102 is threaded to the longitudinal end of the upper tube 100. The diameter of the horizontal end of the lower tube 102 is larger than the diameter of the longitudinal end of the lower tube. The end cap 101 and the top surface of the protrusion 111 cooperate to clamp the horizontal end of the lower tube.

[0022] For the end cap, if the end cap 101 is sleeve-shaped, the inner diameter of its bottom port is greater than or equal to the diameter of the horizontal end of the lower tube, so that it is fitted onto the horizontal end of the lower tube 102. If the inner diameter of the top port of the end cap 101 is less than the diameter of the horizontal end of the lower tube 102, then the horizontal end restricts the end cap from detaching. The end cap can rotate relative to the lower tube. During assembly, the end cap is first fitted onto the lower tube, and then the lower tube is connected to the upper tube.

[0023] The peripheral wall of the protrusion 111 is formed with a threaded surface, and the inner wall of the bottom port of the end cap 102 is formed with a meshing threaded surface. The end cap 102 forms a threaded meshing connection with the threaded surface of the peripheral wall of the protrusion 111 through the threaded surface of the inner wall of the bottom port. During the threaded connection process, the top cavity wall of the end cap 101 cooperates with the top surface of the protrusion 111 to clamp the horizontal end of the lower tube 102 in the middle.

[0024] To facilitate relative rotation between the tube head and the base, in this example, an elastic layer 104, such as a rubber layer, is wrapped around the top surface of the protrusion 111, and an elastic layer 103, such as a rubber layer, is wrapped around the top surface of the horizontal end of the lower tube 102. Figure 2 As shown, the top cavity wall of the end cap 101 abuts against the second elastic layer 103, and the bottom surface of the horizontal end of the lower tube 102 abuts against the first elastic layer 104. Similarly, like rubber layers, the first elastic layer and the second elastic layer can play a sealing role. In addition, their elastic deformation ability also facilitates the relative rotation between the tube head and the base.

[0025] like Figure 3 As shown, under normal conditions, connector 1 is installed on frame 2, and the horizontal end of the upper tube in the tube head is perpendicular to the frame. Under this condition, it is inconvenient to clean the narrower area. The tube head can be rotated relative to the base. If the axial extension direction of the horizontal end of the upper tube is parallel to the length direction of the frame, the narrower area can be cleaned.

[0026] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A dusting brush comprising a joint, characterised in that The connector includes a tube head for connection and a base for fixing. The tube head includes an upper tube, a lower tube, and an end cap. The bottom end of the upper tube is connected to the lower tube. The end cap is fitted onto the lower tube and rotatably connected. The end cap is threadedly connected to a protrusion on the top surface of the base and engages with the protrusion to clamp the lower tube. An elastic layer is provided between the top surface of the protrusion and the bottom end surface of the lower tube. The protrusion and the corresponding base have cavities formed longitudinally.

2. The dust cup according to claim 1, wherein: The lower tube has a T-shaped cross-section, and the upper tube has an L-shaped cross-section. The longitudinal end of the lower tube is threaded to the longitudinal end of the upper tube. The diameter of the horizontal end of the lower tube is larger than the diameter of the longitudinal end of the lower tube. The end cap and the protruding top surface cooperate to clamp the horizontal end of the lower tube.

3. The dust brush of claim 2, wherein: An elastic layer two is provided at the top surface of the horizontal end of the lower tube.

4. The vacuum cleaner brush as described in claim 2, characterized in that: The inner diameter of the bottom port of the end cap is greater than or equal to the diameter of the horizontal end of the lower tube, and the inner diameter of the top port of the end cap is less than the diameter of the horizontal end of the lower tube.

5. The vacuum cleaner brush as described in claim 1, characterized in that: Fastening holes are provided at both ends of the base.

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