A quick-change cleaning brush

Abstract

The utility model discloses a kind of quickly replaceable cleaning brushes, including the mounting shaft being installed on sweeper, the mounting shaft is equipped with shell assembly, a plurality of brush blades are detachably installed on the shell assembly, the brush blade is evenly distributed along the circumference of mounting shaft, the brush blade includes base and the brush arranged on base, the shell assembly is equipped with the positioning slot of the same direction of opening and brush extension direction, the side of the positioning slot is equipped with locking portion, the base is clamped in the positioning slot by locking portion. The utility model changes the positioning mode of existing cleaning brush, the opening direction of positioning slot is optimized to the extension direction of brush, while canceling the thickness direction restriction of base, not only structure is more simple, while installing brush blade, only need to put base into positioning slot along opening direction, so that installation mode is more convenient, and universality is better.

Description

Technical Field

[0001] This utility model relates to the technical field of sweeper accessories, and in particular to a quick-change sweeping brush. Background Technology

[0002] The cleaning brush is one of the key working components of a sweeper, mainly used for cleaning dust, garbage, sand, and other debris from the ground. The material of the cleaning brush varies depending on the usage scenario and cleaning requirements. Chinese utility model patent CN219951778U discloses a cleaning brush for a sweeper, including a mounting shaft installed on the sweeper. A housing assembly is connected to the outer side of the mounting shaft. At least three brush blades are detachably mounted on the housing assembly along its axial direction. The housing assembly has rotating pressure blocks corresponding to the brush blades. Multiple grooves are arranged on the side of the housing assembly away from the rotating pressure blocks. A baffle is provided above the grooves, forming a positioning groove with the groove. A limiting block adapted to the positioning groove is provided at the bottom of the base of the brush blade. During installation, the limiting block is first inserted into the groove, then the entire base is inserted into the positioning groove. The baffle limits the base in a direction perpendicular to the mounting plane. Finally, the rotating pressure blocks press the brush blades firmly onto the housing assembly to complete the assembly.

[0003] While the aforementioned cleaning brush allows for quick-release of the brush blades, different cleaning needs require different brush materials. To ensure the brushes are securely mounted on the base, brushes of different materials need to be paired with bases of varying thicknesses. The existing quick-release structure can only accommodate bases of the same thickness, resulting in poor versatility. Furthermore, the base's positioning is restricted in both length and thickness directions, making installation inconvenient and the structure cumbersome. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick-change cleaning brush with a simpler structure, easier installation, and better versatility.

[0005] The technical solution to achieve the purpose of this utility model is:

[0006] A quick-change cleaning brush includes a mounting shaft mounted on a sweeper. A housing assembly is fitted onto the mounting shaft. Multiple brush blades are detachably mounted on the housing assembly. The brush blades are evenly distributed circumferentially along the mounting shaft. Each brush blade includes a base and brushes arranged on the base. The housing assembly has a positioning groove with an opening in the same direction as the extension of the brush. A locking part is provided on the side of the positioning groove. The base is engaged with the positioning groove by the locking part.

[0007] Furthermore, the housing assembly is provided with a baffle bar perpendicular to the mounting surface of the brush blade, and baffle blocks are arranged at intervals along the side of the baffle bar. The positioning groove is formed between the baffle blocks and the baffle bar, and the baffle bar and the baffle blocks are respectively attached to the two sides of the base.

[0008] Furthermore, the top of both the stop block and the stop bar has a chamfer on the side near the base.

[0009] Furthermore, the stop block and the stop strip are integrally formed with the outer shell assembly.

[0010] Furthermore, the stop includes two first baffles arranged in parallel, and a second baffle is connected to the side of the two first baffles near the base. The first baffles have a trapezoidal structure.

[0011] Furthermore, the locking part includes a plurality of rotating pressure blocks arranged at intervals. Each rotating pressure block includes a rotating shaft fixed on the housing assembly and a pressure head rotatably mounted on the rotating shaft. The base has an outwardly protruding positioning block on the side near the rotating pressure block. The pressure head extends above the positioning block and presses tightly against the positioning block.

[0012] Furthermore, the positioning block has rounded chamfers on both sides along the rotation direction of the pressure head.

[0013] Furthermore, the top of the positioning block is provided with an arc groove, and the bottom of the pressure head is provided with an outwardly protruding round button that matches the arc groove.

[0014] Furthermore, the side of the round button is provided with a downwardly extending third baffle, which abuts against the side of the base when the rotating pressure block is in the locked state.

[0015] Furthermore, the side of the pressure head and the third baffle closest to the base is an arc surface.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects:

[0017] (1) This utility model changes the existing positioning method of cleaning brushes, optimizes the opening direction of the positioning groove to face the extension direction of the brush, and removes the restriction on the thickness direction of the base. Not only is the structure simpler, but when installing the brush blades, the base can be placed into the positioning groove along the opening direction, making the installation method more convenient and more versatile.

[0018] (2) This utility model forms a positioning groove with the opening facing the extension direction of the brush by setting a baffle as the positioning of the base in the width direction and setting a block as the limiting in the width direction. The structure is simple.

[0019] (3) By setting a chamfer, the entrance of the positioning groove is formed into a flared mouth, which makes it easy for the base to be inserted into the positioning groove.

[0020] (4) The baffle and the block of this utility model are integrally formed with the outer shell assembly, which reduces the number of parts, simplifies the structure, and ensures sufficient connection strength.

[0021] (5) This utility model consists of a second baffle and two trapezoidal first baffles. The overall structure has high strength and is not easy to break.

[0022] (6) This utility model uses multiple rotating pressure blocks to form a locking part. By rotating the pressure head, the base is fixed and inserted into the positioning groove, and disassembly and assembly can be achieved without tools.

[0023] (7) This utility model provides rounded chamfers on both sides of the positioning block to facilitate the screwing in and out of the pressure head.

[0024] (8) This utility model further improves the reliability of the locking part by adding a round button and a circular groove.

[0025] (9) By setting a third baffle, this utility model increases the contact point with the base when locked, further ensuring that the base is limited in the positioning groove, avoiding complete deformation of the base, affecting the distribution of the brush, and affecting the cleaning effect.

[0026] (10) By setting the pressure head and the third baffle on the side near the base as an arc surface, this utility model makes it more convenient to rotate and will not cause interference with the adjacent surface. Attached Figure Description

[0027] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This utility model Figure 1 Enlarged view of section A in the image;

[0030] Figure 3 This is a schematic diagram of the pressure head of this utility model;

[0031] Figure 4 This is a partial structural diagram of the brush blade of this utility model.

[0032] The labels in the attached diagram are:

[0033] Mounting shaft 1, housing assembly 2, stop bar 2-1, stop block 2-2, first baffle 2-2-1, second baffle 2-2-2, brush blade 3, base 3-1, positioning block 3-1-1, arc groove 3-1-2, brush 3-2, rotating pressure block 4, rotating shaft 4-1, pressure head 4-2, round button 4-2-1, third baffle 4-2-2. Detailed Implementation

[0034] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0035] (Example 1)

[0036] like Figures 1 to 4 The quick-change cleaning brush shown includes a mounting shaft 1 installed on a sweeper. A housing assembly 2 is fitted onto the mounting shaft 1, and multiple brush blades 3 are detachably mounted on the housing assembly. The brush blades 3 are evenly distributed circumferentially along the mounting shaft. Each brush blade 3 includes a base 3-1 and brushes 3-2 arranged on the base 3-1. The housing assembly 2 has a positioning groove with an opening in the same direction as the extension of the brushes 3-2. A locking part is provided on the side of the positioning groove, and the base 3-1 is locked into the positioning groove by the locking part. Compared with existing structures, this positioning method eliminates the limitation on the thickness direction of the base, resulting in a simpler structure. Furthermore, when installing the brush blades 3, simply placing the base into the positioning groove along the opening direction makes installation more convenient and improves versatility.

[0037] Specifically, the structure of the outer shell assembly 2 and the brush blade 3 is the same as that of the Chinese utility model with authorization announcement number CN219951778U, and will not be described again here.

[0038] The outer casing assembly 2 is provided with a baffle 2-1 perpendicular to the mounting surface of the brush blade. Baffle blocks 2-2 are arranged at intervals along the sides of the baffle 2-1, forming a positioning groove between the baffle blocks 2-2 and the baffle 2-1. When the brush blade 3 is installed in the positioning groove, the baffle 2-1 and the baffle blocks 2-2 respectively fit against the two sides of the base 3-1, achieving width-direction limiting. The baffle blocks 2-2 include two parallel first baffles 2-2-1. A second baffle 2-2-2 is connected to the side of the two first baffles 2-2-1 closest to the base 3-1. The first baffles 2-2-1 have a trapezoidal structure, ensuring overall structural strength and preventing breakage. Furthermore, the baffle blocks 2-2 and the baffle 2-1 are integrally formed with the outer casing assembly 2, reducing the number of parts and simplifying the structure while ensuring sufficient connection strength with the outer casing assembly. Both the top of the stop block 2-2 and the stop strip 2-1 are chamfered on the side near the base 3-1, so that the entrance of the positioning groove forms a flared mouth, making it easy for the base 3-1 to be inserted into the positioning groove.

[0039] The locking part includes multiple rotating pressure blocks 4 arranged at intervals. Each rotating pressure block 4 includes a rotating shaft 4-1 fixed to the housing assembly 2 and a pressure head 4-2 rotatably mounted on the rotating shaft 4-1. A positioning block 3-1-1 protruding outwards is provided on the side of the base 3-1 near the rotating pressure block 4. The pressure head 4-2 extends above the positioning block 3-1-1 and presses firmly against it, thus locking the brush blade 3. The positioning block 3-1-1 has rounded chamfers on both sides along the rotation direction of the pressure head 4-2 to facilitate the screwing in and out of the pressure head 4-2. The top of the positioning block 3-1-1 has a rounded groove 3-1-2, and the bottom of the pressure head 4-2 has an outwardly protruding round button 4-2-1 that matches the rounded groove 3-1-2, further improving the reliability of the locking part. The side of the round button 4-2-1 is provided with a third baffle 4-2-2, which is integrally formed with the pressure head 4-2 and extends downward. When the rotating pressure block 4 is in the locked state, the third baffle 4-2-2 abuts against the side of the base 3-1, thereby increasing the contact point with the base 3-1 in the locked state. This further ensures that the base 3-1 is limited and positioned within the positioning groove, preventing the base 3-1 from being completely deformed, which would affect the brush distribution and the cleaning effect. The side of the pressure head 4-2 and the third baffle 4-2-2 closest to the base 3-1 is an arc surface, making rotation easier and preventing interference with adjacent surfaces.

[0040] This invention changes the existing positioning method of cleaning brushes by optimizing the opening direction of the positioning groove to face the extension direction of the brush. At the same time, it eliminates the restriction on the thickness direction of the base. This not only makes the structure simpler, but also makes the installation of the brush blades more convenient. Simply place the base into the positioning groove along the opening direction. This also makes the installation more versatile.

[0041] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-change cleaning brush, comprising a mounting shaft mounted on a sweeper, a housing assembly fitted onto the mounting shaft, and a plurality of brush blades detachably mounted on the housing assembly, the brush blades being evenly distributed along the circumference of the mounting shaft, characterized in that: The brush blades include a base and brushes arranged on the base. The housing assembly has a positioning groove with an opening in the same direction as the extension of the brush. The side of the positioning groove has a locking part, and the base is locked into the positioning groove by the locking part.

2. The quick-change cleaning brush according to claim 1, characterized in that: The housing assembly is provided with a baffle bar perpendicular to the mounting surface of the brush blade. The baffle bar is provided with baffle blocks spaced apart on its side. The baffle blocks and the baffle bar form the positioning groove. The baffle bar and the baffle blocks are respectively attached to the two sides of the base.

3. A quick-change cleaning brush according to claim 2, characterized in that: The top of both the stop block and the stop bar has a chamfer on the side near the base.

4. A quick-change cleaning brush according to claim 2, characterized in that: The blocks and strips are integrally formed with the outer shell assembly.

5. A quick-change cleaning brush according to claim 4, characterized in that: The stop block includes two first baffles arranged in parallel, and a second baffle is connected to the side of the two first baffles near the base. The first baffles have a trapezoidal structure.

6. A quick-change cleaning brush according to any one of claims 1 to 5, characterized in that: The locking part includes a plurality of rotating pressure blocks arranged at intervals. Each rotating pressure block includes a rotating shaft fixed on the housing assembly and a pressure head rotatably mounted on the rotating shaft. The base has an outwardly protruding positioning block on the side near the rotating pressure block. The pressure head extends above the positioning block and presses tightly against the positioning block.

7. A quick-change cleaning brush according to claim 6, characterized in that: The positioning block has rounded chamfers on both sides along the rotation direction of the pressure head.

8. A quick-change cleaning brush according to claim 7, characterized in that: The top of the positioning block is provided with an arc groove, and the bottom of the pressure head is provided with an outwardly protruding round button that matches the arc groove.

9. A quick-change cleaning brush according to claim 8, characterized in that: The side of the round button is provided with a third baffle extending downwards. When the rotating pressure block is in the locked state, the third baffle abuts against the side of the base.

10. A quick-change cleaning brush according to claim 9, characterized in that: The pressure head and the third baffle have an arc-shaped surface on the side closest to the base.

Images