Elastic reset type trunk whitewashing roller brush

Abstract

The utility model discloses an elastic reset type tree trunk white coating roller brush, including handle support, support spring and roller sleeve, handle support includes first end and second end, and the first end of handle support forms handheld part, and the second end of handle support forms roll brush frame, and support spring installs in the second end of handle support, and the roller sleeve is deformable cloth or elastic material, and at least one end of roller sleeve is open setting, and the roller sleeve is installed on the support spring, through setting support spring in the roll brush frame end of handle support, utilize the bendable characteristic of support spring, make the roller sleeve can closely adhere to the curved surface of cylindrical tree trunk, and the elastic reset force of support spring can drive the roller sleeve after bending to be straight reset fast, avoid the defect that flexible roller is easy to collapse, and the rebound is not the same, reduce the probability of missing coating and the frequency of making up, significantly reduce the labor intensity of worker, shorten the operation time, improve the construction efficiency and coating quality of tree trunk white coating.

Description

Technical Field

[0001] This utility model relates to the field of whitewashing technology for tree trunks in plant gardens, and in particular to an elastic repositioning type whitewashing roller brush for tree trunks. Background Technology

[0002] Tree trunk whitewashing primarily involves using a mixture of quicklime, sulfur powder, and salt to form a white coating. This coating reflects winter sunlight and spring snow, preventing frost cracking caused by drastic temperature fluctuations in the bark. It also reduces the diurnal temperature range, minimizing damage to the cambium layer from frost. Furthermore, the white coating has a certain bactericidal and disinfecting effect, killing overwintering pathogens, insect eggs, and larvae in bark crevices, reducing the occurrence and spread of pests and diseases the following year, and lowering maintenance and pesticide costs. In addition, a neat whitewash appearance enhances the cleanliness and uniformity of the landscape. The adhesives added to some whitewashes also enhance bark moisture retention, mitigating the impact of winter drought on trees, helping them to safely overwinter and store nutrients for spring budding.

[0003] In existing technologies, rollers are typically used to whitewash tree trunks. However, traditional rigid rollers are difficult to apply tightly to cylindrical tree trunks, resulting in a small coverage area per coat. Workers need to walk around the trunk and roll the roller multiple times to whiten the outer surface, which also easily leads to missed areas and uneven thickness, often requiring repeated touch-ups. This results in high labor intensity and long working hours. Using flexible rollers presents problems such as collapse and inconsistent rebound after deformation, leading to subsequent coating trajectory deviations, discontinuous coverage, and uneven thickness, resulting in unsatisfactory performance. Utility Model Content

[0004] The purpose of this invention is to provide an elastically repositionable tree trunk whitening roller brush, which aims to solve the technical problem of poor tree trunk whitening effect of existing roller brushes.

[0005] To achieve the above objectives, the present invention provides a flexible, repositionable tree trunk whitening roller brush, comprising:

[0006] A handle support, comprising a first end and a second end, wherein the first end of the handle support forms a handhold and the second end of the handle support forms a roller brush holder;

[0007] A support spring is rotatably mounted to the second end of the handle bracket;

[0008] A roller sleeve, which is made of deformable fabric or elastic material, has at least one open end. The roller sleeve is fitted onto the support spring so that the support spring supports the roller sleeve. When the tree trunk is brushed, the support spring and the roller sleeve can bend to conform to the curved surface of the tree trunk, and the elastic restoring force of the support spring can drive the bent roller sleeve to straighten and return to its original position.

[0009] Furthermore, the handle bracket includes:

[0010] A support body, on which a first support structure and a second support structure are disposed opposite to each other;

[0011] A first connecting shaft assembly is mounted on the first bracket structure, and the first connecting shaft assembly is capable of constraining one end of the support spring;

[0012] The second connecting shaft assembly is mounted on the second bracket structure and is capable of constraining the other end of the support spring so that the support spring is mounted on the handle bracket.

[0013] Furthermore, the first connecting shaft assembly is detachably mounted on the first bracket structure, and the second connecting shaft assembly is detachably mounted on the second bracket structure.

[0014] Furthermore, the first bracket structure is provided with a first mounting hole, and the second bracket structure is provided with a second mounting hole. Both the first connecting shaft assembly and the second connecting shaft assembly are shaft assemblies, and the shaft assembly includes:

[0015] A screw, which is configured to pass through a first mounting hole or a second mounting hole;

[0016] A first fastening nut and a second fastening nut are inserted through the screw rod. The first fastening nut and the second fastening nut are located on both sides of the first support structure or the second support structure, respectively, so that the screw rod can be fixed to the first support structure or the second support structure by tightening the first fastening nut and the second fastening nut towards each other.

[0017] Furthermore, one end of the screw is provided with a limiting protrusion structure, and the support spring includes a spring body and a first annular connector and a second annular connector located at both ends of the spring body. The other end of the screw can pass through the first annular connector or the second annular connector and connect to the bracket body to constrain one end of the support spring or the other end of the support spring.

[0018] Furthermore, the first annular connector extends radially inward from one end of the spring body and is coiled to form an annular connection structure;

[0019] And / or, the second annular connector extends radially inward from the other end of the spring body and is coiled to form an annular connection structure.

[0020] Furthermore, the screw is coaxially arranged with the roller sleeve, and the rotation axis of the roller sleeve coincides with the central axis of the support spring;

[0021] And / or, the screw and the support spring are coaxially arranged, and the rotation axis of the roller sleeve coincides with the central axis of the support spring.

[0022] Furthermore, the support spring is a helical compression spring structure.

[0023] Furthermore, the outer circumferential surface of the support spring can abut against the inner circumferential surface of the roller sleeve, so that the roller sleeve is supported by the support spring to form a roller-shaped structure.

[0024] Furthermore, the outer diameter of the support spring is approximately equal to the inner diameter of the roller sleeve, and the outer diameter of the roller sleeve is 1 to 1.35 times the outer diameter of the support spring.

[0025] As can be seen from the above technical solution, the elastic reset type tree trunk whitening roller brush of this utility model, by setting a support spring at the roller brush frame end of the handle bracket and matching it with a deformable roller sleeve, utilizes the bendable characteristics of the support spring to enable the roller sleeve to closely fit the curved surface of the cylindrical tree trunk, effectively solving the problem of poor fit of traditional rigid rollers, significantly increasing the coverage area of ​​a single coating, and reducing the number of times workers need to roll the brush around the tree trunk; at the same time, the elastic reset force of the support spring can drive the bent roller sleeve to quickly straighten and reset, avoiding the defects of flexible rollers being prone to collapse and inconsistent rebound, ensuring continuous coating trajectory and uniform coating thickness, reducing the probability of missed coating and the frequency of recoating, significantly reducing the labor intensity of workers, shortening the operation time, and improving the construction efficiency and coating quality of tree trunk whitening.

[0026] To make the technical concept, other objectives, advantages, features and functions of this utility model clearer and easier to understand, preferred embodiments will be specifically described in the following detailed description, and will be illustrated in conjunction with the accompanying drawings. Attached Figure Description

[0027] 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.

[0028] Figure 1 This is a perspective view of the elastically repositionable tree trunk whitening roller brush provided in the embodiments of this application;

[0029] Figure 2 This is an exploded view of the structure of the elastically repositionable tree trunk whitening roller brush provided in the embodiments of this application;

[0030] Figure 3 This is a front view of the elastically repositionable tree trunk whitening roller brush provided in the embodiments of this application;

[0031] Figure 4 This is an exploded view of the elastically repositionable tree trunk whitening roller brush provided in the embodiments of this application from another perspective;

[0032] Figure 5 This is a right view of the elastically repositionable tree trunk whitening roller brush provided in the embodiments of this application;

[0033] Figure 6 This is provided by the embodiments of this application. Figure 5 Enlarged view of section AA;

[0034] Figure 7 This is provided by the embodiments of this application. Figure 6 Enlarged view of point a in the middle;

[0035] The above figures include the following reference numerals:

[0036] 100. Handle bracket; 110. First end; 120. Second end; 130. Bracket body; 131. First bracket structure; 131a. First mounting hole; 132. Second bracket structure; 132a. Second mounting hole; 140. First connecting shaft assembly; 150. Second connecting shaft assembly; 160. Screw; 161. Limiting protrusion structure; 170. First fastening nut; 180. Second fastening nut;

[0037] 200. Support spring; 210. Spring body; 220. Ring-shaped connection structure;

[0038] 300. Roller sleeve. Detailed Implementation

[0039] To enable those skilled in the art to better understand the technical solutions of this application, 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 a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] Please refer to the following: Figures 1 to 7 This embodiment provides an elastically resetting tree trunk whitening roller brush, including a handle bracket 100, a support spring 200, and a roller sleeve 300. The handle bracket 100 includes a first end 110 and a second end 120. The first end 110 of the handle bracket 100 forms a handhold, and the second end 120 of the handle bracket 100 forms a roller brush frame. The support spring 200 is rotatably mounted on the second end 120 of the handle bracket 100. The roller sleeve 300 is made of deformable fabric or elastic material, and at least one end of the roller sleeve 300 is open. The roller sleeve 300 is sleeved and mounted on the support spring 200 so that the support spring 200 supports the roller sleeve 300. When brushing the tree trunk, the support spring 200 and the roller sleeve 300 can bend to conform to the curved surface of the tree trunk, and the elastic resetting force of the support spring 200 can drive the bent roller sleeve 300 to straighten and return to its original position.

[0041] As can be seen, the elastic reset type tree trunk whitening roller brush of this embodiment, by setting a support spring 200 at the roller frame end of the handle bracket 100, can rotate together with the roller sleeve 300. Utilizing the bendable characteristics of the support spring 200, the roller sleeve 300 can tightly fit the curved surface of the cylindrical tree trunk, effectively solving the problem of poor fit of traditional rigid rollers, greatly increasing the coverage area of ​​a single coating, and reducing the number of times workers need to roll the brush around the tree trunk; at the same time, the elastic reset force of the support spring 200 can drive the bent roller sleeve 300 to quickly straighten and reset, avoiding the defects of flexible rollers being prone to collapse and inconsistent rebound, ensuring continuous coating trajectory and uniform coating thickness, reducing the probability of missed coating and the frequency of recoating, significantly reducing the labor intensity of workers, shortening the operation time, and improving the construction efficiency and coating quality of tree trunk whitening.

[0042] Specifically, the roller sleeve 300 is made of elastic plush material and has elastic deformation capability. When the plant trunk is being brushed, the roller sleeve 300 can bend simultaneously with the support spring 200 to adapt to the curved shape of the plant trunk. Both ends of the roller sleeve 300 are open, and the ends of the roller sleeve 300 extend radially inward to form elastically contractible openings at both ends. When the roller sleeve 300 is fitted onto the support spring 200, the openings at both ends of the roller sleeve 300 can elastically contract to cover the ends of the support spring 200, thereby preventing the roller sleeve 300 from detaching from the support spring 200. In other possible implementations, the roller sleeve 300 and the support spring 200 are bonded together.

[0043] In this embodiment, please refer to the following: Figures 1 to 4The handle bracket 100 includes a bracket body 130, a first connecting shaft assembly 140, and a second connecting shaft assembly 150. The bracket body 130 has a first bracket structure 131 and a second bracket structure 132 disposed opposite to each other. The first connecting shaft assembly 140 is mounted on the first bracket structure 131 and can constrain one end of the support spring 200. The second connecting shaft assembly 150 is mounted on the second bracket structure 132 and can constrain the other end of the support spring 200, so that the support spring 200 is mounted on the handle bracket 100.

[0044] By configuring the handle bracket 100 as a combination of the bracket body 130, the first connecting shaft assembly 140, and the second connecting shaft assembly 150, the first connecting shaft assembly 140 and the second connecting shaft assembly 150 respectively constrain the two ends of the support spring 200, thereby forming a stable and precise axial limit on the support spring 200. This avoids the problem of axial movement or displacement of the support spring 200 during bending to fit the tree trunk or elastic reset. At the same time, this structure ensures that the support spring 200 always maintains a relatively fixed posture with the handle bracket 100, ensuring that the roller sleeve 300 can bend smoothly and reset smoothly with the support spring 200, further improving the stability and uniformity of the coating operation, and effectively avoiding defects such as missed coating and uneven coating thickness caused by the displacement of the support spring 200.

[0045] Preferably, the first connecting shaft assembly 140 is detachably mounted on the first bracket structure 131, and the second connecting shaft assembly 150 is detachably mounted on the second bracket structure 132. By detachably mounting the first connecting shaft assembly 140 and the second connecting shaft assembly 150 on the first bracket structure 131 and the second bracket structure 132 respectively, the support spring 200 and the handle bracket 100 can be quickly disassembled and assembled.

[0046] Preferably, please refer to the following: Figures 1 to 7 The first bracket structure 131 is provided with a first mounting hole 131a, and the second bracket structure 132 is provided with a second mounting hole 132a. The first connecting shaft assembly 140 and the second connecting shaft assembly 150 are both shaft assemblies. The shaft assembly includes a screw 160, a first fastening nut 170 and a second fastening nut 180. The screw 160 is used to pass through the first mounting hole 131a or the second mounting hole 132a. The first fastening nut 170 and the second fastening nut 180 pass through the screw 160. The first fastening nut 170 and the second fastening nut 180 are respectively located on both sides of the first bracket structure 131 or the second bracket structure 132, so that the screw 160 can be fixed to the first bracket structure 131 or the second bracket structure 132 by tightening the first fastening nut 170 and the second fastening nut 180 towards each other.

[0047] The threaded connection between the screw 160 and the nut is easy to assemble and disassemble, allowing for quick replacement and maintenance of the support spring 200. This structure is also highly stable, able to withstand the repeated forces exerted when the support spring 200 bends and resets, and is not prone to loosening or falling off, thus ensuring the reliability of the roller brush in long-term use and the stability of the coating operation.

[0048] Preferably, please refer to the following: Figures 2 to 7 One end of the screw 160 is provided with a limiting protrusion structure 161. The support spring 200 includes a spring body 210 and a first annular connector and a second annular connector located at both ends of the spring body 210. The other end of the screw 160 can pass through the first annular connector or the second annular connector and connect with the bracket body 130 to constrain one end of the support spring 200 or the other end of the support spring 200.

[0049] Specifically, by setting a limiting protrusion structure 161 at one end of the screw 160 and setting the two ends of the support spring 200 as a first annular connector and a second annular connector, the screw 160 passes outward from one side of the support spring 200 through the first annular connector or the second annular connector, and the first nut and the second nut are tightened, so as to achieve quick and accurate assembly of the support spring 200 and avoid radial displacement of the support spring 200 during installation. At the same time, the limiting protrusion structure 161 can form a reliable axial limit on the end of the support spring 200, preventing the support spring 200 from axially moving during repeated bending and resetting movements, ensuring that the support spring 200 always maintains a stable support posture, thereby ensuring the consistency of the roller sleeve 300 bending and fitting the tree trunk and the smoothness of resetting, and improving the stability and uniformity of the coating operation.

[0050] Preferably, please refer to the following: Figures 2 to 6 The first annular connector extends radially inward from one end of the spring body 210 and is coiled to form an annular connection structure 220. The second annular connector extends radially inward from the other end of the spring body 210 and is coiled to form an annular connection structure 220.

[0051] By setting the first and second annular connectors as annular structures formed by the radially inwardly extending coils of both ends of the spring body 210, no additional independent connecting components are required, simplifying the overall structure and manufacturing process of the support spring 200 and reducing manufacturing costs. At the same time, this integrated annular connecting structure is made of the same material as the spring body 210, resulting in higher structural strength. It can withstand repeated forces during the bending and reset process of the support spring 200, making it less prone to breakage, detachment, or other failures. This ensures the reliability of the connection between the support spring 200 and the connecting shaft assembly, thereby maintaining the stability of the bending fit and elastic reset of the roller sleeve 300 and ensuring the smooth progress of the coating operation.

[0052] Preferably, the screw 160 is coaxially arranged with the roller sleeve 300, and the screw 160 is coaxially arranged with the support spring 200, with the rotation axis of the roller sleeve 300 and the central axis of the support spring 200 coinciding.

[0053] By coaxially aligning the screw 160 with the roller sleeve 300 and the support spring 200, it is ensured that the support spring 200 and the roller sleeve 300 are centrally and symmetrically distributed on the handle bracket 100. This allows the elastic restoring force of the support spring 200 to be evenly transmitted axially to all parts of the roller sleeve 300, preventing excessive stretching or collapse of the roller sleeve 300 due to force offset. Furthermore, by aligning the rotation axis of the roller sleeve 300 with the central axis of the support spring 200, the elastic force of the support spring 200 is evenly applied along the rotation axis of the roller sleeve 300, preventing eccentric loads caused by axis misalignment. This prevents radial wobble, vibration, or uneven force distribution during rotation of the roller sleeve 300, effectively reducing frictional wear and operating noise between the roller sleeve 300 and surrounding components.

[0054] Preferably, the support spring 200 is a helical compression spring structure.

[0055] The helical compression spring 200 is endowed with excellent radial bending performance and axial elastic recovery capability by utilizing its own helical winding characteristics. This allows it to flexibly adapt to the curved surfaces of cylindrical tree trunks of different thicknesses, and it can quickly straighten and return to its original position after bending, effectively avoiding the problems of the roller sleeve 300 collapsing and inconsistent rebound. At the same time, the hollow structure of the support spring 200 reduces the contact area between it and the roller sleeve 300, reducing the probability of whitening agent residue on the support structure, facilitating subsequent cleaning and maintenance. Furthermore, the helical structure has better uniform force distribution, enabling it to withstand long-term repeated bending and recovery actions, extending the service life of the support spring 200, and ensuring the long-term stable use of the roller brush.

[0056] In this embodiment, the outer peripheral surface of the support spring 200 can abut against the inner peripheral surface of the roller sleeve 300, so that the roller sleeve 300 is supported by the support spring 200 to form a roller-shaped structure.

[0057] In this process, by abutting the side surface of the support spring 200 against the side surface of the roller sleeve 300, the support spring 200 provides all-around rigid support to the roller sleeve 300, ensuring that the roller sleeve 300 maintains a regular roller-shaped structure under normal conditions. At the same time, the tight fit between the support spring 200 and the roller sleeve 300 allows the elastic restoring force to be applied evenly to all parts of the roller sleeve 300, ensuring that the roller sleeve 300 can be straightened and restored synchronously and smoothly after bending and fitting the tree trunk. This effectively improves the continuity of the coating trajectory and the uniformity of the coating, reduces defects such as missed coating and uneven thickness, and further ensures the construction quality of whitewashing the tree trunk.

[0058] In this embodiment, the outer diameter of the support spring 200 is approximately equal to the inner diameter of the roller sleeve 300, and the outer diameter of the roller sleeve 300 is 1 to 1.35 times the outer diameter of the support spring 200. This arrangement allows the support spring 200 to form a tight fit with the roller sleeve 300, which can prevent the roller sleeve 300 from sliding axially or moving radially on the surface of the support spring 200, ensuring the stability of the roller sleeve 300 during the coating operation. It can also maintain the roller-shaped structure of the roller sleeve 300 with the support force of the support spring 200, and smoothly straighten it when returning to its original position, effectively improving the uniformity of the coating and the stability of the coating operation. The outer diameter of the roller sleeve 300 is 1 to 1.35 times the outer diameter of the support spring 200 to avoid the problem of the overall device volume being redundant due to the outer diameter of the roller sleeve 300 being too large, or the support force being insufficient due to the outer diameter of the support spring 200 being relatively too small.

[0059] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0060] By setting a support spring 200 at the brush holder end of the handle bracket 100 and matching it with a deformable roller sleeve 300, the flexible characteristics of the support spring 200 allow the roller sleeve 300 to closely fit the curved surface of the cylindrical tree trunk. This effectively solves the problem of poor fit of traditional rigid rollers, significantly increases the coverage area of ​​a single coating, and reduces the number of times workers need to roll around the tree trunk. At the same time, the elastic restoring force of the support spring 200 can drive the bent roller sleeve 300 to quickly straighten and return to its original position, avoiding the defects of flexible rollers being prone to collapse and inconsistent rebound. This ensures a continuous coating trajectory and uniform coating thickness, reduces the probability of missed coating and the frequency of recoating, significantly reduces the labor intensity of workers, shortens the operation time, and improves the construction efficiency and coating quality of tree trunk whitewashing.

[0061] 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.

[0062] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices 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 limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0063] It should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "set, connect, link, install" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, abutting connections, or integral connections. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0064] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "lateral, longitudinal, vertical, horizontal" and "top, bottom" are generally based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application; in addition, the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0065] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0066] In this specification, the terms "longitudinal," "lateral," "top," "bottom," "inner," "outer," "central," "axial," "radial," and "circumferential," etc., are intended only to facilitate the description of this application and simplify the description based on the directional or positional relationships shown in the accompanying drawings, and are not intended to indicate or imply that the device or element involved must have a specific orientation. The device is constructed and operates in a specific orientation and therefore should not be construed as a limitation of this application.

[0067] Furthermore, it should be noted that in the description of this utility model, the use of terms such as "first" and "second" to define the 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. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0068] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A flexible, repositionable tree trunk whitening roller brush, characterized in that... ,include: A handle support (100) includes a first end (110) and a second end (120). The first end (110) of the handle support (100) has a hand grip portion, and the second end (120) of the handle support (100) has a roller brush holder. A support spring (200) is rotatably mounted on the second end (120) of the handle bracket (100); A roller sleeve (300) is made of deformable fabric or elastic material. At least one end of the roller sleeve (300) is open. The roller sleeve (300) is sleeved on the support spring (200) so that the support spring (200) supports the roller sleeve (300). When the tree trunk is brushed, the support spring (200) and the roller sleeve (300) can be bent to conform to the curved surface of the tree trunk, and the elastic restoring force of the support spring (200) can drive the bent roller sleeve (300) to straighten and return to its original position.

2. The elastically repositionable tree trunk whitening roller brush according to claim 1, characterized in that, The handle support (100) includes: A support body (130) is provided with a first support structure (131) and a second support structure (132) disposed opposite to each other. A first connecting shaft assembly (140) is mounted on the first bracket structure (131) and is capable of constraining one end of the support spring (200). A second connecting shaft assembly (150) is mounted on the second bracket structure (132). The second connecting shaft assembly (150) is capable of constraining the other end of the support spring (200) so that the support spring (200) is mounted on the handle bracket (100).

3. The elastically repositionable tree trunk whitening roller brush according to claim 2, characterized in that, The first connecting shaft assembly (140) is detachably mounted on the first bracket structure (131), and the second connecting shaft assembly (150) is detachably mounted on the second bracket structure (132).

4. The elastically repositionable tree trunk whitening roller brush according to claim 3, characterized in that, The first bracket structure (131) is provided with a first mounting hole (131a), and the second bracket structure (132) is provided with a second mounting hole (132a). The first connecting shaft assembly (140) and the second connecting shaft assembly (150) are both shaft assemblies, and the shaft assembly includes: A screw (160) is provided to pass through a first mounting hole (131a) or a second mounting hole (132a); A first fastening nut (170) and a second fastening nut (180) are provided on the screw (160). The first fastening nut (170) and the second fastening nut (180) are located on both sides of the first bracket structure (131) or the second bracket structure (132), respectively, so as to fix the screw (160) to the first bracket structure (131) or the second bracket structure (132) by tightening the first fastening nut (170) and the second fastening nut (180) towards each other.

5. The elastically repositionable tree trunk whitening roller brush according to claim 4, characterized in that, One end of the screw (160) is provided with a limiting protrusion structure (161). The support spring (200) includes a spring body (210) and a first annular connector and a second annular connector located at both ends of the spring body (210). The other end of the screw (160) can pass through the first annular connector or the second annular connector and connect to the bracket body (130) to constrain one end of the support spring (200) or the other end of the support spring (200).

6. The elastically repositionable tree trunk whitening roller brush according to claim 5, characterized in that, The first annular connector extends radially inward from one end of the spring body (210) and is coiled to form an annular connection structure (220); And / or, the second annular connector extends radially inward from the other end of the spring body (210) and is coiled to form an annular connection structure (220).

7. The elastically repositionable tree trunk whitening roller brush according to claim 4, characterized in that, The screw (160) is coaxially arranged with the roller sleeve (300), and the rotation axis of the roller sleeve (300) coincides with the central axis of the support spring (200); And / or, the screw (160) and the support spring (200) are coaxially arranged, and the rotation axis of the roller sleeve (300) coincides with the central axis of the support spring (200).

8. The elastically repositionable tree trunk whitening roller brush according to any one of claims 1 to 7, characterized in that, The support spring (200) is a helical compression spring structure.

9. The elastically repositionable tree trunk whitening roller brush according to any one of claims 1 to 7, characterized in that, The outer circumferential surface of the support spring (200) can abut against the inner circumferential surface of the roller sleeve (300) so that the roller sleeve (300) is supported by the support spring (200) to form a roller-shaped structure.

10. The elastically repositionable tree trunk whitening roller brush according to any one of claims 1 to 7, characterized in that, The outer diameter of the support spring (200) is approximately equal to the inner diameter of the roller sleeve (300), and the outer diameter of the roller sleeve (300) is 1 to 1.35 times the outer diameter of the support spring (200).

Images