A telescopic roller brush

Abstract

The embodiment of the utility model provides a telescopic roller brush relates to roller brush tool technical field. Telescopic roller brush includes handle component, telescopic support and roller assembly. Telescopic support is connected with handle component. Telescopic support is provided with locking mechanism. Roller assembly is detachably installed on telescopic support. The part for being connected with roller assembly on telescopic support can be length adjusted and is locked through locking mechanism. The utility model can realize the function of one pole multiple cylinders, effectively solve the problem that construction personnel needs to carry multiple complete roller brushes, reduce tool procurement cost, improve operation convenience.

Description

Technical Field

[0001] This utility model relates to the field of roller brush tools, and more specifically, to a retractable roller brush. Background Technology

[0002] The roller brush in the related technology usually consists of a handle, a bracket fixedly connected to the handle, and a roller core sleeved on the bracket.

[0003] The inventors discovered that in related technologies, the handle, bracket, and roller core of the roller brush are usually a fixed unit, or can only be used with a single type of roller core. To cope with complex working conditions, construction workers need to purchase and carry multiple complete roller brushes, which increases the procurement cost of tools and also increases the size and weight of tool bags, making the tools inconvenient to carry. Utility Model Content

[0004] The purpose of this utility model is to provide a retractable roller brush that can realize the function of one rod with multiple rollers, effectively solving the problem that construction workers need to carry multiple complete roller brushes, reducing tool procurement costs and improving work convenience.

[0005] The embodiments of this utility model can be implemented as follows: This utility model provides a retractable roller brush, comprising: Handle assembly; A telescopic bracket, which is connected to the handle assembly, and the telescopic bracket is provided with a locking mechanism; A roller assembly, which is detachably mounted on the telescopic bracket; The portion of the telescopic bracket used to connect with the roller assembly can be adjusted in length and locked by the locking mechanism.

[0006] In an optional embodiment, the telescopic bracket includes a sleeve and a telescopic rod, the telescopic rod being slidably inserted through the sleeve; the locking mechanism includes a locking block, an elastic element, and a plurality of through holes spaced apart along the axial direction of the sleeve; the locking block is mounted on the telescopic rod through the elastic element and can be ejected radially under the action of the elastic element to lock into any of the through holes.

[0007] In an optional embodiment, the card block includes a pressing portion protruding from the through hole.

[0008] In an optional embodiment, the retractable roller brush further includes an extension rod; an extension rod connecting portion is provided at the end of the handle assembly away from the telescopic bracket; the extension rod connecting portion is used to connect the extension rod.

[0009] In an optional embodiment, the extension rod connection portion is a connection hole provided at the end of the handle assembly; one end of the extension rod passes through the connection hole and abuts against the bottom wall of the connection hole.

[0010] In an optional implementation, the extension rod is a telescopic extension rod.

[0011] In an optional embodiment, a locking sleeve is also included, which is detachably connected to the end of the handle assembly for covering and securing the extension rod connection.

[0012] In an optional embodiment, the roller assembly includes roller cores of different specifications, and the end of the telescopic bracket is provided with a detachable connection structure to prevent the roller core from falling off.

[0013] In an optional embodiment, a flexible connecting rope is also connected between the connecting structure and the telescopic bracket.

[0014] In an optional embodiment, the length adjustment range of the telescopic bracket can accommodate various sizes of the roller core, ranging from 4 inches to 9 inches.

[0015] The beneficial effects of the retractable roller brush provided in this embodiment of the invention include: This utility model discloses a telescopic roller brush comprising a handle assembly, a telescopic bracket, and a roller assembly. The telescopic bracket is connected to the handle assembly. The telescopic bracket is equipped with a locking mechanism. The roller assembly is detachably mounted on the telescopic bracket. The portion of the telescopic bracket used to connect with the roller assembly is length-adjustable and locked by the locking mechanism. The combination of the detachable roller assembly design and the adjustable telescopic bracket achieves a multi-cylinder function with a single handle. Workers only need to carry one handle assembly and several roller assemblies of different sizes to meet various operational needs, greatly reducing tool size and weight, lowering procurement costs, and improving operational convenience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the first state of the retractable roller brush provided in this embodiment; Figure 2 This is a structural schematic diagram of the second state of the retractable roller brush provided in this embodiment; Figure 3 This is a partial cross-sectional structural diagram of the telescopic bracket provided in this embodiment.

[0018] Icons: 100-Retractable roller brush; 10-Handle assembly; 11-Extension rod; 12-Locking sleeve; 13-Extension rod connector; 20-Telescopic bracket; 21-Sleeve; 211-Through hole; 22-Telescopic rod; 23-Locking mechanism; 231-Clock; 2311-Pressing part; 232-Elastic element; 30-Roller assembly. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0025] The following describes in detail the overall structure, working principle, and technical effects of the retractable roller brush 100 provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0026] Please refer to Figures 1-3 The retractable roller brush 100 provided by this utility model is mainly used for wall painting operations in fields such as building decoration and home DIY. This retractable roller brush 100 aims to solve the technical problems of traditional products having limited functions, unstable connections, and inability to flexibly adapt to various working conditions.

[0027] This telescopic roller brush 100 includes a handle assembly 10, a telescopic bracket 20, and a roller assembly 30. One end of the telescopic bracket 20 is fixedly or detachably connected to the handle assembly 10, and the roller assembly 30 is detachably mounted to the other end of the telescopic bracket 20. A locking mechanism 23 is provided on the telescopic bracket 20. The portion of the telescopic bracket 20 used for connecting to the roller assembly 30 is length-adjustable and locked by the locking mechanism 23.

[0028] By setting up a telescopic bracket and a detachable roller assembly 30 structure, one handle assembly 10 can be adapted to multiple specifications of roller assemblies 30, thereby achieving the technical effect of one handle with multiple rollers. This reduces the volume and weight of tools that construction workers need to carry, lowers tool procurement costs, and improves adaptability to different work surfaces.

[0029] The handle assembly 10 is used for user gripping and provides a connection base to the telescopic bracket 20. The handle assembly 10 can be made of different materials as needed. In this embodiment, the handle assembly 10 is made of engineering plastic, such as ABS. In other embodiments, the handle assembly 10 can also be made of metal, such as aluminum alloy, to enhance structural strength. The handle assembly 10 can be configured with different shapes as needed. In this embodiment, its grip portion is an ergonomically curved shape. In other embodiments, it can also be a straight rod shape, etc.

[0030] In this embodiment, the telescopic roller brush 100 also includes an extension rod 11. An extension rod connecting portion 13 is provided at the end of the handle assembly 10 furthest from the telescopic bracket 20. The extension rod connecting portion 13 is used to connect the extension rod 11. It is understood that by connecting the extension rod 11 to the end of the handle assembly 10 furthest from the telescopic bracket 20, the operating radius can be effectively extended, significantly expanding the working range.

[0031] Specifically, the extension rod connecting part 13 is a connecting hole provided at the end of the handle assembly 10 for inserting one end of the extension rod 11. One end of the extension rod 11 passes through the connecting hole and abuts against the bottom wall of the connecting hole. In this embodiment, one end of the extension rod 11 is threadedly connected to the connecting hole at the end of the handle assembly 10. Specifically, the inner wall of the connecting hole is provided with an internal thread structure, and the end of the extension rod 11 is provided with an external thread structure, so as to achieve a fixed connection between the extension rod 11 and the handle assembly 10.

[0032] Furthermore, the extension rod 11 is a telescopic extension rod 11. Specifically, the telescopic extension rod 11 includes at least two relatively slidable rod sections (not shown in the figure), namely an inner rod and an outer rod. The outer rod is sleeved outside the inner rod and can slide along the axial direction of the inner rod. Multiple locking holes are spaced axially on the wall of the outer rod, and an elastic locking tongue mechanism is provided on the inner rod. When the length of the extension rod 11 needs to be adjusted, pressing the elastic locking tongue disengages it from the current locking hole, allowing the outer rod to slide to the desired length. At this time, the elastic locking tongue automatically engages in the corresponding locking hole under the action of the return spring, achieving quick locking. This telescopic structure allows the extension rod 11 to extend flexibly during use, adapting to different working scenarios at different heights.

[0033] Furthermore, the retractable roller brush 100 also includes a locking sleeve 12. The locking sleeve 12 is detachably connected to the end of the handle assembly 10 and is used to cover and lock the extension rod connection portion 13. When the extension rod 11 is not in use, the locking sleeve 12 is screwed onto the end of the handle assembly 10, completely covering the connection hole of the extension rod connection portion 13, providing effective protection against dust and foreign objects. When the extension rod 11 needs to be connected, the locking sleeve 12 is unscrewed, and the end of the extension rod 11 is inserted into the connection hole.

[0034] The telescopic bracket 20 supports the roller assembly 30 and adjusts the effective working width of the roller assembly 30 by changing its own length, while adapting to roller assemblies of different widths. Further, the telescopic bracket 20 includes a sleeve 21 and a telescopic rod 22, the telescopic rod 22 being slidably inserted into the sleeve 21. It is understood that the portion of the telescopic bracket 20 used for connection with the roller assembly 30 is the sleeve 21 and the telescopic rod 22. The locking mechanism 23 includes a locking block 231, an elastic element 232, and a plurality of through holes 211 spaced axially along the sleeve 21. The locking block 231 is mounted on the telescopic rod 22 via the elastic element 232 and has a tendency to pop out radially under the action of the elastic element 232, thereby engaging with any of the through holes 211 on the sleeve 21 to achieve length locking of the telescopic bracket 20.

[0035] Furthermore, the locking block 231 includes a pressing part 2311 protruding from the through hole 211. This pressing part 2311 extends outward from the inside of the telescopic rod 22 and outward from the outside of the sleeve 21, forming a button structure for unlocking. During operation, pressing this button causes the locking block 231 to compress the elastic element 232 and move radially inward, disengaging it from the through hole 211, allowing the telescopic rod 22 to slide freely to adjust its length. During the movement of the telescopic rod 22, the locking block 231 automatically resets under the action of elasticity and engages in a new position within the through hole 211, completing the locking process.

[0036] Furthermore, the roller assembly 30 includes roller cores of different specifications, and the end of the telescopic bracket 20 is provided with a detachable connecting structure. The connecting structure is used to prevent the roller core from falling off. Specifically, the outer diameter of the connecting structure is larger than the inner wall aperture of the roller core, so that the roller core will not fall off the end of the telescopic bracket 20 when the connecting structure is installed at the end of the telescopic bracket 20.

[0037] Specifically, the detachable connecting structure can be a retaining ring, a retaining ring, or an end cap. During installation, the roller core is first fitted onto the telescopic bracket 20, and then the connecting structure is installed and fixed to the end of the telescopic bracket 20. Once installed, the flange or end face formed radially by the connecting structure directly covers the inner hole or end face of the roller core end. As long as the connecting structure is not disassembled, the roller core cannot detach from the end of the telescopic bracket 20, thus achieving an anti-detachment function. When disassembling the roller core, the connecting structure is first removed from the end of the telescopic bracket 20, releasing its axial restriction on the roller core, after which the roller core can be easily slid off the bracket.

[0038] Specifically, the connecting structure is detachably connected to the end of the telescopic bracket 20 via a threaded connection. Furthermore, to prevent the connecting structure from being lost after disassembly, a flexible connecting rope is also connected between the connecting structure and the telescopic bracket 20.

[0039] Specifically, the telescopic bracket 20's length adjustment range can accommodate various roller cores ranging from 4 inches to 9 inches. Understandably, the sleeve 21 of the telescopic bracket 20 has multiple equally spaced through holes 211 along its axial direction, the positions of which correspond one-to-one with the width requirements of standard roller cores from 4 inches to 9 inches. Through simple length adjustment, it can match a full range of roller cores, from narrow detail brushes to wide wall brushes, solving the problem of needing to prepare multiple sets of roller brushes of different sizes in traditional construction.

[0040] The beneficial effects of the retractable roller brush 100 provided in this embodiment of the utility model include: The retractable roller brush 100 of this utility model includes a handle assembly 10, a telescopic bracket 20, and a roller assembly 30. The telescopic bracket 20 is connected to the handle assembly 10. The telescopic bracket 20 is provided with a locking mechanism 23. The roller assembly 30 is detachably mounted on the telescopic bracket 20. The portion of the telescopic bracket 20 used to connect with the roller assembly 30 is length-adjustable and locked by the locking mechanism 23. By combining the detachable roller assembly 30 design with the adjustable telescopic bracket 20, a multi-cylinder function is achieved with a single handle. Construction personnel only need to carry one retractable roller brush 100 and several roller assemblies 30 of different specifications to meet different work requirements, greatly reducing tool volume and weight, lowering procurement costs, and improving work convenience. The telescopic bracket 20 and the roller assembly 30 adopt an anti-detachment connection structure, effectively preventing the risk of the roller core accidentally falling off during rapid rolling construction. At the same time, an extension rod 11 is detachably provided at the end of the handle assembly 10, allowing the roller brush to adapt to high-altitude working environments.

[0041] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A retractable roller brush, characterized in that, include: Handle assembly; A telescopic bracket, which is connected to the handle assembly, and the telescopic bracket is provided with a locking mechanism; A roller assembly, which is detachably mounted on the telescopic bracket; The portion of the telescopic bracket used to connect with the roller assembly can be adjusted in length and locked by the locking mechanism.

2. The retractable roller brush according to claim 1, characterized in that, The telescopic bracket includes a sleeve and a telescopic rod, the telescopic rod being slidably inserted through the sleeve; the locking mechanism includes a locking block, an elastic element, and a plurality of through holes spaced apart along the axial direction of the sleeve; the locking block is mounted on the telescopic rod through the elastic element, and can be ejected radially under the action of the elastic element to lock into any of the through holes.

3. The retractable roller brush according to claim 2, characterized in that, The card block includes a pressing part that protrudes from the through hole.

4. The retractable roller brush according to claim 1, characterized in that, The retractable roller brush also includes an extension rod; the end of the handle assembly away from the telescopic bracket is provided with an extension rod connecting part; the extension rod connecting part is used to connect the extension rod.

5. The retractable roller brush according to claim 4, characterized in that, The extension rod connection part is a connection hole provided at the end of the handle assembly; one end of the extension rod passes through the connection hole and abuts against the bottom wall of the connection hole.

6. The retractable roller brush according to claim 5, characterized in that, The extension rod is a telescopic extension rod.

7. The retractable roller brush according to claim 4, characterized in that, It also includes a locking sleeve, which is detachably connected to the end of the handle assembly to cover and lock the extension rod connection.

8. The retractable roller brush according to claim 1, characterized in that, The roller assembly includes roller cores of different specifications, and the end of the telescopic bracket is provided with a detachable connection structure to prevent the roller core from falling off.

9. The retractable roller brush according to claim 8, characterized in that, A flexible connecting rope is also connected between the connecting structure and the telescopic bracket.

10. The retractable roller brush according to claim 8, characterized in that, The length adjustment range of the telescopic bracket can accommodate various sizes of roller cores ranging from 4 inches to 9 inches.

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