Device capable of quickly whitewashing tree trunk

By designing a handheld grip and an extendable support structure, the problems of low painting efficiency and poor quality of tree trunk whitewashing equipment have been solved, achieving efficient whitewashing and reducing labor costs.

CN223817132UActive Publication Date: 2026-01-23宜川县市政公用设施养护管理大队
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Patent Information

Application Number
CN202520175720.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-27
Publication Date
2026-01-23
Estimated Expiration
2035-01-27

AI Technical Summary

Technical Problem

Existing tree trunk whitewashing equipment has low painting efficiency, poor quality, and high labor costs.

Method used

A device was designed that includes a hand grip, a connecting block, a fixed support arm, and a movable support arm. A brush cylinder is installed on the support arm, and the brush cylinder can be expanded and retracted through the cooperation of a slider and a connecting rod to adapt to different tree trunk diameters. The ring structure increases the contact area between the bristles and the tree trunk.

Benefits of technology

It improves the efficiency and quality of painting and whitewashing, reduces the intensity of manual labor, and reduces the space requirements for transportation and carrying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a device capable of quickly whitewashing trunks, and belongs to the technical field of municipal greening management devices. The device comprises a handheld holding rod, a connecting block is mounted on one end side of the handheld holding rod; a fixed support arm and two movable support arms are mounted on the connecting block; the movable support arm is rotatably mounted on the connecting block; the two movable supporting arms are arranged on the two sides of the fixed supporting arm respectively, and the movable supporting arms and the fixed supporting arm are located on the same plane. Brush cylinders are rotatably mounted on the movable support arm and the fixed support arm; bristles are arranged on the brush cylinder; a connecting rod is hinged to the two movable support arms; one end of the connecting rod is movably connected to the handheld rod; the tree trunk whitewashing device effectively solves the problems of low whitewashing efficiency, poor whitewashing quality and high labor cost when a tree trunk is whitewashed at present.
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Description

Technical Field

[0001] This utility model relates to the technical field of municipal greening management devices, specifically to a device that can quickly whitewash tree trunks. Background Technology

[0002] In winter, when managing urban greenery and trees, it is often necessary to whitewash the tree trunks for protection. Currently, most of the whitewashing equipment used is just ordinary brushes. Because the brush bristles are mostly flat-headed, the whitewashing trail formed by a single brush stroke is not only narrow but also uneven on the tree trunk. This results in low overall whitewashing efficiency and high labor costs. This is the main problem that urgently needs to be solved. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a device that can quickly whitewash tree trunks, so as to solve the problems of low whitewashing efficiency, poor whitewashing quality and high labor costs in the current whitewashing of tree trunks.

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] A device for quickly whitewashing tree trunks includes a handheld grip; a connecting block is mounted on one end of the handheld grip; a fixed support arm and two movable support arms are mounted on the connecting block; the movable support arms are rotatably mounted on the connecting block; the two movable support arms are respectively located on both sides of the fixed support arm, and the movable support arms and the fixed support arm are on the same plane; a brush cylinder is rotatably mounted on both the movable support arms and the fixed support arm; the brush cylinder is provided with brush bristles; and a connecting rod is hinged to the two movable support arms; one end of the connecting rod is movably connected to the handheld grip.

[0006] Preferably, a slider is installed on the side of the hand grip near the connecting block; the slider can move along the length of the hand grip, and the other end of the connecting rod is hinged to the slider.

[0007] Furthermore, the slider is a hollow sleeve structure that fits onto the hand grip, with a through positioning hole on the slider along its diameter; several pin holes are opened on the hand grip at positions corresponding to the positioning holes; the slider is detachably connected to the hand grip via positioning pins.

[0008] Preferably, the connecting block is an isosceles trapezoidal block structure, with one end of the hand grip rod located on the side of the shorter base of the connecting block, the fixed support arm located on the side of the longer base, and the two movable support arms respectively hinged to the two inclined sides of the connecting block.

[0009] Preferably, the fixed support arm is a U-shaped curved rod structure, with its two protruding ends connected to the connecting block, and the connecting rod in the middle is an arc-shaped rod that bends toward the connecting block; the brush cylinder is rotatably mounted on the connecting rod in the middle.

[0010] Preferably, the movable support arm includes a rotating rod hinged to the connecting block; one end of the connecting rod is hinged to the rotating rod; a ring arm in the shape of a closed ring is installed on the other end of the rotating rod; the inner side of the ring arm is a concave arc-shaped curved rod, and the brush cylinder is located at the position of the arc-shaped curved rod.

[0011] Preferably, the hand grip is a single-section telescopic straight rod structure.

[0012] The beneficial effects of this utility model are:

[0013] This utility model has a simple structure and is easy to operate. It can extend or retract two movable arms by a slider, thereby accommodating tree trunks of different diameters and providing excellent storage performance, greatly reducing the space required for carrying and transportation. At the same time, this utility model uses multiple arms combined with a brush tube with bristles to form a ring structure around the tree trunk, which can greatly increase the contact area between the bristles and the tree trunk, improve the efficiency and quality of painting and whitewashing, effectively reduce the intensity of manual labor, and save on labor costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention in an embodiment;

[0015] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle;

[0016] Explanation of reference numerals in the attached diagram: 1. Hand grip, 2. Connecting block, 3. Fixed support arm, 4. Movable support arm, 5. Brush cylinder, 6. Connecting rod, 7. Slider. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: Example

[0018] Reference Figure 1This embodiment provides a device for quickly whitewashing tree trunks; it includes a handheld grip 1; a connecting block 2 is installed on one end of the handheld grip 1; a fixed support arm 3 and two movable support arms 4 are installed on the connecting block 2; the movable support arms 4 are rotatably mounted on the connecting block 2; the two movable support arms 4 are respectively located on both sides of the fixed support arm 3, and the movable support arms 4 and the fixed support arm 3 are on the same plane; a brush cylinder 5 is rotatably mounted on both the movable support arms 4 and the fixed support arm 3; brush bristles are provided on the brush cylinder 5; a connecting rod 6 is also hinged to the two movable support arms 4; one end of the connecting rod 6 is movably connected to the handheld grip 1.

[0019] A slider 7 is installed on the hand grip 1 near the connecting block 2; the slider 7 can move along the length of the hand grip 1, and the other end of the connecting rod 6 is hinged to the slider 7.

[0020] The slider 2 is a hollow sleeve structure that fits onto the hand grip 1. A through positioning hole is opened on the slider 2 along the direction of its tube diameter. Several pin holes are opened on the hand grip 1 at the positions corresponding to the positioning hole. The slider 2 is detachably connected to the hand grip 1 through positioning pins.

[0021] The connecting block 2 is an isosceles trapezoidal block structure. One end of the hand grip 1 is set on the side of the shorter base of the connecting block 2, the fixed support arm 3 is set on the side of the longer base, and the two movable support arms 4 are respectively hinged to the two inclined sides of the connecting block 2.

[0022] The fixed support arm 3 is a U-shaped curved rod structure, with its two protruding ends connected to the connecting block 2. The connecting rod in the middle is an arc-shaped rod that bends toward the connecting block 2. The brush cylinder 5 is rotatably mounted on the connecting rod in the middle.

[0023] The movable support arm 4 includes a rotating rod hinged to the connecting block 2; one end of the connecting rod 6 is hinged to the rotating rod; a ring arm in the shape of a closed ring is installed on the other end of the rotating rod; the inner side of the ring arm is a concave arc-shaped curved rod, and the brush cylinder 5 is located at the position of the arc-shaped curved rod.

[0024] The handgrip 1 is a single-section, retractable straight rod structure. In this embodiment, the handgrip 1 is hinged to the connecting block via a hinge rod, which allows adjustment of the relative rotation angle between the connecting block and the handgrip, further improving the applicability of the device.

[0025] When using the utility model device in this embodiment, simply pull out the positioning pin, immerse the brush tubes on the fixed support arm and the movable support arm in the paint solution, wet the bristles, and then remove them. After that, hold the brush tube on the fixed support arm against the tree trunk to be painted by holding the handle, and adjust the position of the slider on the handle so that the movable support arms on both sides can cooperate to clamp onto the tree trunk. Then, use the positioning pin to fix the slider to the handle, and after adjusting the length of the handle, you can control the movable support arm and the movable support arm to drive the brush tube to roll and paint on the tree trunk by holding the handle.

Claims

1. A device capable of quickly whitewashing tree trunks, characterized in that: It includes a hand grip (1); a connecting block (2) is installed on one end of the hand grip (1); a fixed support arm (3) and two movable support arms (4) are installed on the connecting block (2); the movable support arms (4) are rotatably installed on the connecting block (2); the two movable support arms (4) are respectively set on both sides of the fixed support arm (3), and the movable support arms (4) and the fixed support arm (3) are on the same plane; a brush cylinder (5) is rotatably installed on both the movable support arm (4) and the fixed support arm (3); brush bristles are provided on the brush cylinder (5); a connecting rod (6) is also hinged to the two movable support arms (4); one end of the connecting rod (6) is movably connected to the hand grip (1).

2. The device for quickly whitewashing tree trunks according to claim 1, characterized in that: A slider (7) is installed on the side of the hand grip (1) near the connecting block (2); the slider (7) can move along the length of the hand grip (1), and the other end of the connecting rod (6) is hinged to the slider (7).

3. The device for quickly whitewashing tree trunks according to claim 2, characterized in that: The slider (7) is a hollow sleeve structure that fits onto the hand grip (1). A through positioning hole is opened on the slider (7) along the direction of its tube diameter. Several pin holes are opened on the hand grip (1) at the positions corresponding to the positioning hole. The slider (7) is detachably connected to the hand grip (1) through the positioning pin.

4. The device for quickly whitewashing tree trunks according to claim 1, characterized in that: The connecting block (2) is an isosceles trapezoidal block structure. One end of the hand grip (1) is set on the side of the shorter base of the connecting block (2), the fixed support arm (3) is set on the side of the longer base, and the two movable support arms (4) are respectively hinged to the two inclined sides of the connecting block (2).

5. The device for quickly whitewashing tree trunks according to claim 1, characterized in that: The fixed support arm (3) is a U-shaped curved rod structure with its two protruding ends connected to the connecting block (2). The connecting rod in the middle is an arc-shaped rod that bends toward the connecting block (2). The brush cylinder (5) is rotatably mounted on the connecting rod in the middle.

6. The device for quickly whitewashing tree trunks according to claim 1, characterized in that: The movable support arm (4) includes a rotating rod hinged to the connecting block (2); one end of the connecting rod (6) is hinged to the rotating rod; a ring arm in the shape of a closed ring is installed on the other end of the rotating rod; the inner side of the ring arm is a concave arc-shaped curved rod, and the brush cylinder (5) is set at the position of the arc-shaped curved rod.

7. The device for quickly whitewashing tree trunks according to claim 1, characterized in that: The hand grip (1) is a segmented telescopic straight rod structure.