Hand-held whitewashing device for garden trees
By designing a handheld whitewasher for garden trees, a continuous supply and uniform distribution of paint was achieved, solving the problems of short brush life and paint waste, improving the coating effect and reducing worker fatigue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南京市园林经济开发有限责任公司
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-21
AI Technical Summary
In the current tree trunk whitewashing process, the brushes have a short lifespan, there is a serious waste of paint, the coating effect is uneven, and the workers are highly fatigued.
Design a handheld whitewasher for garden trees, comprising a handle, connecting rod, mounting base and brush head, equipped with a liquid reservoir and liquid guide block to achieve continuous supply and uniform distribution of paint, and the brush head is detachable and replaceable to adapt to different tree trunk shapes.
It extends the lifespan of the brush, improves the uniformity and durability of the coating effect, reduces worker fatigue, and reduces paint waste.
Smart Images

Figure CN224522616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of whitewashing technology for garden trees, specifically to a handheld whitewashing device for garden trees. Background Technology
[0002] Tree trunk whitewashing is a traditional physical protection measure widely used in orchards, nurseries, urban greening, and some economic forest management. Its core principle is to utilize the physical properties of white paint to provide protection for trees (especially trunks), primarily targeting problems such as temperature stress, pests and diseases, and sunscald. The most traditional and commonly used base material is quicklime, which provides the primary white coating.
[0003] Current tree trunk whitewashing methods typically involve workers holding hand brushes and carrying buckets of whitewash paint. Often, when whitewashing a single tree, the brushes need to be repeatedly dipped in the paint bucket and coated multiple times. This drastically reduces the lifespan of the brushes due to friction, and the repeated bending over causes worker fatigue. More importantly, the amount of paint absorbed by the brush in a single dip is limited, and most of the paint on the brush is lost upon contact with the trunk during a single application. This results in overly thick whitewash in certain areas, leading to a poor overall whitewashing effect.
[0004] In view of the above, in order to overcome the above technical problems, this utility model designs a handheld whitewasher for garden trees, which solves the above technical problems. Utility Model Content
[0005] The technical objective of this invention is to improve the brush's application effect by extending the handheld end of the brush and simultaneously providing a single, continuous supply of paint to the brush head.
[0006] To achieve the above-mentioned technical objectives, this utility model provides the following technical solution:
[0007] This utility model provides a handheld whitening device for garden trees, including a handle, a connecting rod, a mounting base, and a brush head. The handle is connected to the mounting base via the connecting rod, and the brush head is mounted on the mounting base. The mounting base also has a liquid storage box and a liquid guiding block. The liquid storage box is installed on the top end face of the mounting base, and its bottom end is connected to the liquid guiding block. The liquid guiding block is used to guide the whitening liquid to the brush head.
[0008] The liquid guiding blocks are arranged in pairs and are respectively disposed on the two end faces of the mounting base. A bent liquid outlet head is installed on the end of the liquid guiding block near the brush head.
[0009] Furthermore, the liquid outlet head has a linear array of multiple liquid outlet holes, all of which are aligned with the root of the brush head.
[0010] Furthermore, the two liquid guiding blocks are hinged to the mounting base by a connecting block, and the two liquid guiding blocks are connected by a tension spring.
[0011] Preferably, the front end of the brush head is a concave arc shape.
[0012] Preferably, the liquid storage box has an opening at the top.
[0013] Preferably, the grip and the connecting rod are hinged to each other, and the rotation angle of the grip in the horizontal state is ±60 degrees.
[0014] Furthermore, the mounting base has a mounting groove for mounting the brush head, and the brush head can be detachably mounted on the mounting base.
[0015] The beneficial effects of this utility model are as follows:
[0016] 1. This utility model installs a liquid storage box on the brush holder. The liquid storage box can store some paint in a single soaking. When the brush head is continuously applying white paint, the paint is injected into the base of the brush head through the liquid storage box, thereby making the brush head apply white paint for a longer period of time and avoiding the problem of excessive thickness in some areas when applying white paint in a single application.
[0017] 2. This utility model has a liquid outlet head at the front end of the liquid guide block. The front end of the liquid outlet head is bent and moves closer to the root of the brush head, so that the paint entering through the liquid outlet head can be accurately injected into the brush head, and the brush head can be fully soaked in paint, further improving the whitening effect of the brush head and making the whitening of the brush head more uniform.
[0018] 3. The bottom of the brush head of this utility model is installed in the mounting groove of the mounting base in a detachable manner. On the one hand, this allows the base of the brush head to be further inserted into the mounting base and close to the liquid outlet, so that the brush head is more evenly wetted with paint. On the other hand, it makes the brush head replaceable, improving the practicality of the device. Different brush heads can be switched for different tree trunk shapes and sizes, thereby improving the applicability of the device. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] The above and other aspects of the present invention will now be described by way of example only, with reference to the accompanying drawings, in which:
[0021] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a side plan view of the overall structure of this utility model;
[0023] Figure 3 This is a utility model Figure 2 An enlarged view of point A;
[0024] Figure 4 This is a schematic diagram of the mounting slot of this utility model;
[0025] Figure 5 This is a utility model Figure 4 An enlarged schematic diagram of point B.
[0026] In the diagram: 1. Handle; 2. Connecting rod; 3. Mounting base; 31. Mounting groove; 4. Liquid guide block; 41. Liquid outlet head; 411. Liquid outlet hole; 42. Tension spring; 43. Connecting block; 5. Brush head; 6. Liquid storage box. Detailed Implementation
[0027] 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.
[0028] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to explain the relative positional relationship and movement between components in a specific orientation. If the specific orientation changes, the directional indication will also change accordingly. These terms are used only for the convenience of describing this application and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0029] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] like Figures 1-5 As shown, in this embodiment, the worker operates the whitening device by holding the handle 1. Before carrying out the whitening operation, the worker needs to adjust the hinge angle of the handle 1 and the connecting rod 2 according to the height of the tree and the diameter of the trunk.
[0032] Specifically, such as Figure 2 As shown, in this embodiment, the hinge angle between the handle 1 and the connecting rod 2 is 154 degrees, which allows the worker to easily perform the whitening operation whether it is upward or downward. When the whitening reaches the bottom of the tree trunk, due to the angle between the handle 1 and the connecting rod 2, the worker does not need to bend over. He only needs to move his hand position appropriately to the rear of the handle 1, thereby reducing the fatigue of the worker in the whitening operation.
[0033] In this embodiment, as Figure 1 As shown, the worker holds the handle 1 and dips the brush head 5 into the paint bucket. The liquid storage tank on the mounting base 3 is filled with paint through its top opening. The worker holds the handle 1 at an angle and lifts the brush head 5. At this time, the liquid storage box 6 is filled with paint. The paint in the storage box 6 is connected to the liquid guide block 4 through the channel in the mounting base 3. Then the liquid guide block 4 continuously injects paint into the brush head 5. When the worker is performing the whitewashing operation, because the brush head 5 continuously outputs paint, the whitewashing on the tree trunk is more uniform, and the whitewashing operation after a single dip is more durable. The number of times the worker bends over to dip paint into the paint bucket is significantly reduced.
[0034] It is worth noting that, such as Figure 3 and Figure 5 As shown, the liquid guide block 4 has an inwardly snapped liquid outlet head 41 at its front end. The liquid outlet head 41 has a row of evenly arranged liquid outlet holes 411. The paint flows from the liquid storage box 6 through the liquid guide block 4 and flows out from the multiple liquid outlet holes 411. By bending inward and aligning the liquid outlet head 41 with the brush head 5, the paint can be accurately injected into the dense area of the bristles at the base of the brush head 5, thereby providing the brush head 5 with an absorption effect and preventing the paint from falling off due to failure to absorb it in time, which would lead to paint waste.
[0035] It is worth noting that, such as Figure 1As shown, the front end of the brush head 5 in this embodiment has an arc-shaped recess to better fit the round shape of the tree trunk and reduce the wear of the bristles on the inner side of the brush head 5.
[0036] In this embodiment, the brush head 5 is detachably installed in the mounting groove 31 of the mounting base 3. To avoid the liquid guiding block 4 interfering with the installation process of the brush head 5, such as... Figure 3 and Figure 4 As shown, the rear end of the liquid guide block 4 is hinged to the mounting base 3 via the connecting block 43, which allows the liquid guide block 4 to rotate slightly on the mounting base 3. The rear end of the liquid guide block 4 rotates to lift the front end of the liquid outlet head 41, thereby increasing the space inside the liquid guide head. The replacement brush head 5 can then smoothly enter the mounting groove 31. After that, the liquid outlet block is released, and the liquid outlet block resets under the action of the tension spring 42 and locks into the mounting support at the bottom of the brush head 5. At the same time, the liquid outlet head 41 at the front end of the liquid outlet block can also be aligned with the upper part of the root of the brush head 5, making the effect of the paint wetting the brush head 5 more significant.
[0037] The description herein is provided to enable those skilled in the art to implement or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.
[0038] Although the present disclosure has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to the embodiments of the present disclosure, which will be obvious to those skilled in the art. Therefore, such modifications or improvements made without departing from the spirit of the present disclosure are all within the scope of protection claimed by the present disclosure.
[0039] The above description is merely illustrative of this disclosure, and modifications may be made to the present invention in light of the above detailed description. The terminology used in the appended claims should not be construed as limiting the present invention to the specific embodiments disclosed in the specification. Rather, the scope of the present invention will be fully defined by the appended claims, which will be interpreted according to established principles of claim interpretation.
Claims
1. A handheld whitewasher for garden trees, characterized in that, It includes a handle (1), a connecting rod (2), a mounting base (3) and a brush head (5). The handle (1) is connected to the mounting base (3) via the connecting rod (2), and the brush head (5) is mounted on the mounting base (3). The mounting base (3) is also equipped with a liquid storage box (6) and a liquid guide block (4). The liquid storage box (6) is installed on the top end face of the mounting base (3) and its bottom end is connected to the liquid guide block (4). The liquid guide block (4) is used to guide the whitening liquid to the brush head (5).
2. The handheld whitewasher for garden trees according to claim 1, characterized in that: The liquid guiding blocks (4) are in pairs and are respectively set on the two end faces of the mounting base (3). A bent liquid outlet head (41) is installed on the end of the liquid guiding block (4) near the brush head (5).
3. The handheld whitewasher for garden trees according to claim 2, characterized in that: The liquid outlet head (41) has a plurality of liquid outlet holes (411) arranged in a linear array, and the plurality of liquid outlet holes (411) are aligned with the root of the brush head (5).
4. The handheld whitewasher for garden trees according to claim 2, characterized in that: The two liquid guiding blocks (4) are hinged to the mounting base (3) by a connecting block (43), and the two liquid guiding blocks (4) are connected by a tension spring (42).
5. The handheld whitewasher for garden trees according to claim 1, characterized in that: The front end of the brush head (5) is a concave arc shape.
6. The handheld whitewasher for garden trees according to claim 1, characterized in that: The top opening of the liquid storage box (6).
7. The handheld whitewasher for garden trees according to claim 1, characterized in that: The grip (1) and the connecting rod (2) are hinged to each other, and the grip (1) can rotate at an angle of ±60 degrees in the horizontal state.
8. The handheld whitewasher for garden trees according to any one of claims 1-7, characterized in that: The mounting base (3) has a mounting groove (31) for mounting the brush head (5), and the brush head (5) can be detachably mounted on the mounting base (3).