Adjustable variable-diameter disc brush

Abstract

The utility model relates to the technical field of disc brushes, in particular to an adjustable variable-diameter disc brush which comprises bristles installed at the bottom of a brush disc, a top shell is installed at the top of the brush disc, a transmission cavity communicated with the top shell is formed in the brush disc, a transmission assembly is arranged in the transmission cavity, and a plurality of lead screws are installed on the transmission assembly. Threaded sliding blocks which slide on the inner wall of a guide sliding groove formed in the bottom of the brush disc are connected to the multiple lead screws in a threaded mode, and sliding bottom plates matched with the guide sliding groove are installed at the bottoms of the threaded sliding blocks. The rotating shaft rotates to drive the driving bevel gear to rotate so as to drive the meshing gear disc to rotate, so that the driven bevel gears are driven to rotate synchronously, the lead screws on the movable bevel gears are made to rotate, the threaded sliding blocks on the lead screws are pushed outwards along the guide sliding grooves, the sliding bottom plate is further driven to move outwards, the radius of the brush disc is expanded, and the service life of the brush disc is prolonged. And the brush disc is adjusted in a reducing manner to adapt to different cleaning environments, so that the applicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of disc brush technology, and in particular to an adjustable variable diameter disc brush. Background Technology

[0002] Disc brushes are a common tool in industrial production, cleaning and maintenance, and various surface treatment operations. For example, in the car wash industry, disc brushes are used to remove dust, dirt and stains from the car body surface, and are a key tool for achieving efficient and convenient cleaning operations.

[0003] Traditional disc brushes typically have a fixed diameter, making it difficult to meet the cleaning needs of various car models. When cleaning small cars, an oversized disc brush may not be able to accurately conform to the body curves, resulting in incomplete cleaning of corners, door seams, and other areas. When cleaning large vehicles, a disc brush with a diameter that is too small requires multiple brushing cycles to cover the entire vehicle surface, significantly reducing cleaning efficiency. Furthermore, since the vehicle surface consists of flat surfaces, curved surfaces, and irregular structures (such as roof curves, door recesses, wheel arches, etc.), traditional fixed-diameter disc brushes can only cover localized areas when facing curved surfaces, easily leaving blind spots for cleaning or polishing, resulting in low work efficiency and uneven quality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adjustable diameter disc brush, which solves the technical problems of existing disc brushes having a fixed diameter, making it difficult to adapt to the size differences of different car models for precise cleaning, and making it difficult for disc brushes to fully cover and clean curved car bodies. It achieves the purpose of adjusting the diameter of the disc brush according to different car models and making the disc brush fit the curved surface of the car body.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adjustable diameter disc brush, including bristles installed at the bottom of the brush disc, a top shell installed on the top of the brush disc, and a transmission cavity communicating with the top shell is opened in the brush disc, a transmission assembly is provided in the transmission cavity, multiple lead screws are installed on the transmission assembly, and threaded sliders are threadedly connected to the multiple lead screws and sliding on the inner wall of the guide groove opened at the bottom of the brush disc, and a sliding base plate is installed at the bottom of the threaded slider, which is located at the same horizontal line as the bottom of the brush disc and is adapted to the guide groove. Bristles are also installed at the bottom of the sliding base plate, and an adaptive mechanism is provided on the brush disc to make the brush disc conform to the curved surface structure.

[0006] A further improvement is that the transmission assembly includes a rotating shaft rotatably connected to a rotating hole in the top shell. An active bevel gear is installed at the inner end of the rotating shaft inside the top shell. A meshing gear disk located in the transmission cavity is meshed at the bottom of the active bevel gear. Multiple driven bevel gears are meshed at the bottom of the meshing gear disk. A lead screw is installed on each of the multiple driven bevel gears. A knob is installed at the outer end of the rotating shaft.

[0007] A further improvement is that the guide groove has a U-shaped structure, and multiple guide groove arrays are opened at the bottom of the brush disk, with their positions corresponding to multiple lead screws.

[0008] A further improvement is that limit grooves are symmetrically opened on both sides of the guide groove, and limit sliders that are slidably connected to the inner walls of the two limit grooves are symmetrically installed on both sides of the top of the sliding base plate.

[0009] A further improvement is that the adaptive mechanism includes a rubber column installed on the top of the top shell, a mounting base installed on the top of the rubber column, a hinge seat 1 installed at each of the four corners of the mounting base, a connecting arm 1 rotatably connected inside each of the hinge seats 1, and a hinge seat 2 installed at each of the four corners of the top of the brush plate, which is vertically opposite to the hinge seat 1, a connecting arm 2 rotatably connected inside each of the hinge seats 2, and the end of the connecting arm 2 is rotatably connected to the slot opened at the end of the connecting arm 1 by a shaft pin, and a compression spring is installed between each pair of vertically opposite connecting arms 1 and connecting arms 2.

[0010] A further improvement is that a connecting rod is installed on the top of the mounting base, and the connecting rod is a telescopic structure with a handle installed at the end of the connecting rod.

[0011] By employing the above technical solution, this utility model provides an adjustable diameter disc brush, which has at least the following beneficial effects:

[0012] 1. This utility model uses a rotating shaft to drive the active bevel gear to rotate, which in turn drives the meshing gear disc to rotate, thereby driving multiple driven bevel gears to rotate synchronously. This causes the lead screw on the driven bevel gear to rotate, which in turn pushes the threaded slider on the lead screw outward along the guide groove, thereby causing the sliding base plate to move outward, thus expanding the radius of the brush disc. By adjusting the diameter of the brush disc, it can adapt to different cleaning environments, improving the applicability of the device.

[0013] 2. This utility model uses the reaction force generated by pressing the brush disc to drive the corresponding hinge seat and mounting seat in the connecting arm and hinge seat to rotate, and compress the compression spring to drive the rubber column to bend, so that the brush disc fits the curved surface structure of the car body, realizing a comprehensive cleaning of the car body and avoiding cleaning dead corners. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is a cross-sectional view of the internal structure of the brush disc of this utility model;

[0018] Figure 3 This is a schematic diagram of the independent structure of the transmission component of this utility model;

[0019] Figure 4 This is a partially enlarged structural diagram of the disassembled sliding base plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the independent structure of the adaptive mechanism of this utility model.

[0021] In the picture: 1. Brush plate; 2. Brush bristles; 3. Top shell;

[0022] 4. Transmission assembly; 41. Rotating shaft; 42. Driving bevel gear; 43. Meshing gear disc; 44. Driven bevel gear; 45. Knob;

[0023] 5. Lead screw; 6. Threaded slider; 7. Sliding base plate; 8. Limit slider;

[0024] 9. Adaptive mechanism; 91. Rubber column; 92. Mounting base; 93. Hinge base one; 94. Connecting arm one; 95. Hinge base two; 96. Connecting arm two; 97. Compression spring;

[0025] 10. Linkage rod; 11. Handle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Given the limitations of current disc brush technology, which features a fixed diameter that makes it difficult to precisely clean different vehicle models and achieve comprehensive coverage of curved surfaces, this embodiment provides an adjustable diameter disc brush. Please refer to [reference needed]. Figures 1-5This embodiment provides an adjustable diameter disc brush, which can adjust the diameter of the disc brush according to different vehicle models and make the disc brush conform to the curved surface of the vehicle body. The adjustable diameter disc brush includes bristles 2 installed at the bottom of the brush disc 1, a top shell 3 installed at the top of the brush disc 1, and a transmission cavity communicating with the top shell 3 is opened in the brush disc 1. A transmission assembly 4 is arranged in the transmission cavity, and multiple lead screws 5 are installed on the transmission assembly 4. Each of the multiple lead screws 5 is threadedly connected to a threaded slider 6 that slides on the inner wall of a guide groove opened at the bottom of the brush disc 1. A sliding base plate 7 is installed at the bottom of the threaded slider 6, which is located on the same horizontal line as the bottom of the brush disc 1 and is adapted to the guide groove. Bristles 2 are also installed at the bottom of the sliding base plate 7. An adaptive mechanism 9 is provided on the brush disc 1 to conform to the curved surface structure.

[0029] The transmission assembly 4 includes a rotating shaft 41 rotatably connected to a rotating hole in the top shell 3. An active bevel gear 42 is installed on the inner end of the rotating shaft 41 inside the top shell 3. The bottom of the active bevel gear 42 is meshed with a meshing gear disk 43 located in the transmission cavity. Multiple driven bevel gears 44 are meshed in an array on the bottom of the meshing gear disk 43. A lead screw 5 is installed on each of the multiple driven bevel gears 44. A knob 45 is installed on the outer end of the rotating shaft 41.

[0030] The guide groove has a U-shaped structure, and multiple guide grooves are arrayed at the bottom of the brush disk 1. Their positions correspond to multiple lead screws 5. When it is necessary to expand the cleaning area of ​​the brush disk 1, the knob 45 is turned to drive the rotating shaft 41 to rotate inside the top shell 3, thereby driving the active bevel gear 42 to rotate, which in turn drives the meshing gear disk 43 to rotate. The rotation of the meshing gear disk 43 drives multiple driven bevel gears 44 at its bottom to rotate synchronously, which in turn drives the lead screw 5 on the driven bevel gear 44 to rotate, thereby pushing the threaded slider 6 on the lead screw 5 outward along the guide groove, which in turn drives the sliding base plate 7 to move outward. The bottom of the sliding base plate 7 is also equipped with bristles 2, thereby expanding the radius of the brush disk 1. By adjusting the diameter of the brush disk 1, it can adapt to different cleaning environments, thus improving the applicability of the device.

[0031] To improve the stability of the sliding base plate 7, symmetrical limit grooves are provided on both sides of the guide groove in the device. Limiting sliders 8 are symmetrically installed on both sides of the top of the sliding base plate 7 and are slidably connected to the inner walls of the two limit grooves. As the sliding base plate 7 slides outward, it drives the limiting sliders 8 on its top to slide outward along the limit groove. The sliding base plate 7 and the limiting sliders 8 form a T-shaped structure, which improves the stability of the sliding base plate 7 in sliding and use, and prevents the sliding base plate 7 from bending after long-term use, which would cause its bottom to be uneven with the brush plate 1 and cause scratches on the car body.

[0032] The mounting base 92 has a connecting rod 10 installed on its top, and the connecting rod 10 is a telescopic structure. A handle 11 is installed at the end of the connecting rod 10. The length of the connecting rod 10 can be adjusted by the telescopic connecting rod 10 to adapt to different cleaning scenarios.

[0033] Example 2

[0034] Because the existing brush plate has a fixed angle, it is difficult to conform to the curves of the car body, resulting in blind spots during cleaning. Therefore, based on Example 1, as follows... Figures 1-5 As shown, the device also includes an adaptive mechanism 9, which includes a rubber column 91 mounted on the top of the top shell 3. A mounting base 92 is mounted on the top of the rubber column 91. Hinges 93 are mounted at each of the four corners of the mounting base 92. Connecting arms 94 are rotatably connected to each of the hinges 93. Hinges 95, vertically opposite to the hinges 93, are mounted at the four corners of the top of the brush plate 1. Connecting arms 96 are rotatably connected to each of the hinges 95, and the ends of the connecting arms 96 are rotatably connected to the connecting arms 94 via pins. 4. In the slots opened at the ends, each pair of vertically opposite connecting arms 94 and 96 is equipped with a compression spring 97. When it is necessary to clean the curved surface of the car body, the brush plate 1 is pressed. The reaction force generated drives the corresponding connecting arm 94 and the hinge seat 93 and mounting seat 92 in the hinge seat 95 to rotate, and compresses the compression spring 97 to drive the rubber column 91 to bend, so that the brush plate 1 fits the curved surface of the car body, realizing a comprehensive cleaning of the car body and avoiding cleaning dead corners.

[0035] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable diameter disc brush, comprising bristles (2) mounted on the bottom of a brush disc (1), characterized in that: The brush plate (1) is equipped with a top shell (3) and a transmission cavity communicating with the top shell (3) is provided inside the brush plate (1). A transmission assembly (4) is provided inside the transmission cavity. Multiple lead screws (5) are installed on the transmission assembly (4). Each lead screw (5) is threadedly connected to a threaded slider (6) that slides on the inner wall of the guide groove opened at the bottom of the brush plate (1). A sliding base plate (7) that is located on the same horizontal line as the bottom of the brush plate (1) and is adapted to the guide groove is installed at the bottom of the threaded slider (6). Brush bristles (2) are also installed at the bottom of the sliding base plate (7). An adaptive mechanism (9) that makes the brush plate (1) fit into the curved surface structure is provided on the brush plate (1).

2. The adjustable diameter disc brush according to claim 1, characterized in that: The transmission assembly (4) includes a rotating shaft (41) rotatably connected to a rotating hole in the top shell (3). The inner end of the rotating shaft (41) located in the top shell (3) is equipped with a driving bevel gear (42). The bottom of the driving bevel gear (42) is meshed with a meshing gear disk (43) located in the transmission cavity. The bottom of the meshing gear disk (43) is meshed with multiple driven bevel gears (44). Each of the multiple driven bevel gears (44) is equipped with a lead screw (5). A knob (45) is installed on the outer end of the rotating shaft (41).

3. An adjustable diameter disc brush according to claim 2, characterized in that: The guide groove is a U-shaped structure, and multiple guide groove arrays are opened at the bottom of the brush plate (1), and their positions correspond to multiple lead screws (5).

4. An adjustable diameter disc brush according to claim 3, characterized in that: The guide groove is symmetrically provided with limiting grooves on both sides, and the top of the sliding base plate (7) is symmetrically provided with limiting sliders (8) that are slidably connected to the inner walls of the two limiting grooves.

5. An adjustable diameter disc brush according to claim 1, characterized in that: The adaptive mechanism (9) includes a rubber column (91) installed on the top of the top shell (3), a mounting base (92) installed on the top of the rubber column (91), a hinge seat (93) installed at each of the four corners of the mounting base (92), a connecting arm (94) rotatably connected inside the hinge seat (93), a hinge seat (95) vertically opposite to the hinge seat (93) installed at the four corners of the top of the brush plate (1), a connecting arm (96) rotatably connected inside the hinge seat (95), and the end of the connecting arm (96) rotatably connected to the slot opened at the end of the connecting arm (94) by a shaft pin, and a compression spring (97) is installed between each pair of vertically opposite connecting arms (94) and connecting arms (96).

6. An adjustable diameter disc brush according to claim 5, characterized in that: The mounting base (92) is equipped with a connecting rod (10) on its top, and the connecting rod (10) is a telescopic structure with a handle (11) at the end of the connecting rod (10).

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