Tree bite prevention device
By designing a tree anti-gnawing device consisting of an outer shell and an inner hoop, the problem of poor air permeability of traditional tarpaulin strips is solved, achieving the effects of preventing animal gnawing, keeping trees dry and well-ventilated, and promoting healthy tree growth.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 郭柏然
- Filing Date
- 2025-07-04
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional tarpaulin protective devices have poor air permeability, which makes it easy for seedlings to develop a humid and stuffy environment during the rainy season, promoting the growth of mold and affecting tree growth.
Design a tree anti-biting device, which adopts an outer shell and an inner hoop structure. The outer shell is made of rigid plastic, and the inner hoop is made of flexible material. The inner and outer hoops are connected by a spring. The surface of the inner hoop is provided with ventilation holes. The bottom fixing spike of the outer hoop is inserted into the soil. The inner hoop and the inner shell fit against the tree surface to ensure air circulation and can be adjusted to adapt to the growth of the tree.
It effectively prevents animals from gnawing on trees, keeps tree surfaces dry, avoids mold erosion, promotes healthy tree growth, is stable without damaging trees, and has good air permeability.
Smart Images
Figure CN224267598U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tree protection technology, and in particular to a tree anti-biting device. Background Technology
[0002] Tree seedlings face numerous threats during planting, with animal grazing at the base being particularly prominent. According to forestry statistics, in some forest areas, the mortality or poor growth rate of seedlings due to animal grazing is as high as 30%. Rabbits are among the most common sapling eaters; to maintain healthy tooth length and alleviate boredom and anxiety, they often gnaw on trees to wear down their teeth. In North China, there have been instances where wild rabbits have devoured large numbers of newly planted poplar seedlings, resulting in replanting rates exceeding 40% in entire forest areas.
[0003] To prevent rabbits and other animals from gnawing on saplings, people usually install protective devices on the outside of the saplings. Traditional methods often involve wrapping the saplings with tarpaulin strips, which can prevent rabbits from directly biting the saplings and can provide some protection.
[0004] However, tarpaulin strips have poor air permeability. During the rainy season, the area of the tree trunk tightly wrapped by the tarpaulin strips cannot circulate air, making it difficult for moisture to dissipate and easily creating a damp and stuffy microenvironment. This environment is like a breeding ground, providing excellent conditions for the growth and reproduction of mold and fungi. Common fungi such as gray mold and Pythium mold can quickly erode the bark, causing it to discolor and rot. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies where poor air permeability of tarpaulin strips affects the growth of saplings, and to propose a tree anti-biting device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] Design a tree anti-biting device, including a pair of outer shells connected by bolts, with outer hoops fixedly installed at both ends of the outer shells, a positioning rod passing through the inside of the outer hoop, an inner hoop fixedly installed at the end of the positioning rod, a spring sleeved on the outside of the positioning rod, one end of the spring being fixedly connected to the inner hoop and the other end being fixedly connected to the outer hoop, an inner shell being fixedly installed on the inner side of the inner hoop, and fixing spikes being evenly fixedly installed along the circumference of the lower surface of the bottom outer hoop.
[0008] Preferably, the outer shell sidewall is provided with weight-reducing holes evenly distributed along its circumference.
[0009] Preferably, a flexible strip is fixedly installed on the inner surface of the inner hoop.
[0010] Preferably, the inner hoop sidewall is provided with ventilation holes.
[0011] Preferably, a support mechanism is fixedly installed on the outer side of the top outer hoop. The support mechanism includes a strut, one end of which is rotatably connected to the outer surface of the outer hoop, and the other end is rotatably connected to a fixing plate. An insert rod is threaded inside the fixing plate.
[0012] Preferably, spikes are uniformly fixedly installed on the outer surface of the support rod.
[0013] Preferably, a cover is fixedly installed on one side of the outer shell, a support rod is fixedly installed inside the cover, a liquid storage box is placed on the upper surface of the support rod, and a through hole is opened at the bottom of the cover.
[0014] Preferably, the bottom of the cover is an arc shape with an opening facing downwards.
[0015] The tree anti-gnawing device proposed in this utility model has the following advantages: When in use, the outer hoop and outer shell mainly serve to block external physical damage and prevent animals from gnawing on the tree. They have strong hardness and wear resistance. The inner hoop and inner shell are more focused on protecting the tree. They are made of relatively soft materials to avoid damaging the tree surface during use. By inserting the fixing spikes at the bottom of the outer hoop into the soil, the stability of the device can be maintained. The spring can make the inner hoop and inner shell fit against the surface of the sapling, which can prevent rabbits from crawling into the device from the bottom of the outer hoop and gnawing on the sapling. The weight-reducing holes and ventilation holes can ensure air circulation and good ventilation. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a tree anti-biting device proposed in this utility model;
[0017] Figure 2 This is a cross-sectional view of a tree anti-biting device proposed in this utility model;
[0018] Figure 3 This is a longitudinal sectional view of a tree anti-biting device proposed in this utility model;
[0019] Figure 4 This is a cross-sectional view of the interior of the cover in a tree anti-biting device proposed in this utility model.
[0020] In the diagram: 1. Outer hoop; 2. Outer shell; 3. Weight reduction hole; 4. Positioning rod; 41. Spring; 5. Inner hoop; 6. Flexible strip; 7. Inner shell; 8. Vent hole; 9. Fixing spike; 10. Support rod; 11. Spike; 12. Fixing plate; 13. Insert rod; 14. Cover; 15. Support rod; 16. Liquid storage box; 17. Through hole. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Example 1: Refer to Figure 1-3 A tree-resistant anti-biting device includes a pair of outer shells 2 connected by bolts, which facilitates disassembly. The outer shells 2 are rigid plastic structures coated with an anti-aging coating, providing good support strength and supporting the entire device. The outer shells 2 prevent rabbits from gnawing on saplings. Weight-reducing holes 3 are evenly distributed along the circumference of the sidewalls of the outer shells 2, reducing the material usage. Outer clamps 1 are fixedly installed at both ends of the outer shells 2. Fixing spikes 9 are evenly fixedly installed along the circumference of the lower surface of the bottom outer clamp 1. The fixing spikes 9 can be inserted into the soil outside the sapling roots, and the outer clamps 1 are stabilized by the fixing spikes 9. Because the diameter of the outer shells 2 is larger than the diameter of the sapling, the fixing spikes 9 will not damage the sapling roots when inserted into the soil.
[0023] A positioning rod 4 is inserted through the outer hoop 1. An inner hoop 5 is fixedly installed at the end of the positioning rod 4. An inner sleeve 7 is fixedly installed inside the inner hoop 5. A spring 41 is sleeved on the outside of the positioning rod 4. One end of the spring 41 is fixedly connected to the inner hoop 5, and the other end is fixedly connected to the outer hoop 1. Under the elastic action of the spring 41, the inner hoop 5 will always have an elastic tendency to move away from the outer hoop 1, allowing the inner sleeve 7 to always fit against the surface of the sapling. The inner sleeve 7 is composed of a rubber structure, which can protect the sapling through flexible contact with its surface.
[0024] When the device is installed on the outside of the sapling, the spring 41 ensures that the inner hoop 5 and the inner sleeve 7 remain in close contact with the sapling. As the sapling grows thicker, the spring 41 will be compressed, and the inner hoop 5 and the inner sleeve 7 will move outward. The elastic resistance of the spring 41 is small and will not affect the growth of the sapling.
[0025] A flexible strip 6 is fixedly installed on the inner surface of the inner hoop 5. The flexible strip 6 is supported by a felt structure inside. The flexible strip 6 replaces the inner hoop 5 in contact with the surface of the sapling, which can prevent the sapling from being damaged by friction with the surface of the inner hoop 5 during shaking. Ventilation holes 8 are opened on the side wall of the inner hoop 5 to ensure air circulation and prevent the sapling from being damp for a long time during the rainy season, which can cause adverse effects such as bark mold. The weight-reducing hole 3 and the ventilation hole 8 work together to improve the air permeability on the outside of the sapling.
[0026] Working principle: When using this tree anti-biting device, first, the outer hoop 1, outer shell 2, inner hoop 5 and inner shell 7 are put on the outside of the sapling. The fixing spikes 9 at the bottom of the outer hoop 1 are inserted into the soil. Then, the outer hoop 1 on both sides is aligned and fixed with bolts. The inner hoop 5 and inner shell 7 will fit against the sapling under the elastic support of the spring 41, supporting it. The weight reduction hole 3 and the ventilation hole 8 can ensure air circulation and good ventilation effect.
[0027] Example 2: In Example 1, the bottom of the outer hoop 1 is stabilized by the fixing spikes 9. However, in strong winds, the device is prone to tilting, affecting its protective effect on trees. Therefore, this example is proposed. (Refer to...) Figure 1-2 In another preferred embodiment of this utility model, based on embodiment 1, a support mechanism is fixedly installed on the outer side of the top outer hoop 1. The support mechanism includes a support rod 10, one end of which is rotatably connected to the outer surface of the outer hoop 1, and the other end is rotatably connected to a fixing plate 12. An insert rod 13 is threaded inside the fixing plate 12. When the fixing plate 12 is placed on the ground, the insert rod 13 can be inserted into the soil by rotating it. The insert rod 13 and the fixing plate 12 can maintain the stability of the support rod 10, and the support rod 10 can maintain the stability of the outer hoop 1 and the outer shell 2, thereby preventing the device from tilting. Spikes 11 are evenly fixedly installed on the outer surface of the support rod 10. The spikes 11 can prevent rabbits from gnawing on the support rod 10 and can extend the service life of the support rod 10.
[0028] Example 3: Reference Figure 1-2 and Figure 4 In another preferred embodiment of this utility model, based on Embodiment 1 or Embodiment 2, a cover 14 is fixedly installed on one side of the outer shell 2, and a support rod 15 is fixedly installed inside the cover 14. A liquid storage box 16 is placed on the upper surface of the support rod 15, and a through hole 17 is opened at the bottom of the cover 14. The liquid storage box 16 stores a repellent liquid with a pungent odor. The odor emitted by the repellent liquid can diffuse out through the through hole 17, which can repel rabbits, prevent rabbits from approaching the device, avoid rabbits hitting or biting the device, and extend the service life of the device. The bottom of the cover 14 is an arc shape with an opening facing downwards, which can prevent rainwater from entering the cover 14 through the through hole 17.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A tree anti-gnawing device, comprising a pair of outer shells (2) connected by bolts, characterized in that, Both ends of the outer shell (2) are fixedly installed with outer hoop (1). A positioning rod (4) is provided through the inner part of the outer hoop (1). An inner hoop (5) is fixedly installed at the end of the positioning rod (4). A spring (41) is sleeved on the outer side of the positioning rod (4). One end of the spring (41) is fixedly connected to the inner hoop (5) and the other end is fixedly connected to the outer hoop (1). An inner shell (7) is fixedly installed on the inner side of the inner hoop (5). Fixing spikes (9) are evenly fixedly installed on the lower surface of the bottom outer hoop (1) along its circumference.
2. The tree anti-gnawing device according to claim 1, characterized in that, The outer shell (2) has weight-reducing holes (3) evenly distributed along its circumference on its side wall.
3. The tree anti-gnawing device according to claim 1, characterized in that, A flexible strip (6) is fixedly installed on the inner surface of the inner hoop (5).
4. The tree anti-gnawing device according to claim 1, characterized in that, The inner hoop (5) has ventilation holes (8) on its side wall.
5. The tree anti-gnawing device according to claim 1, characterized in that, A support mechanism is fixedly installed on the outer side of the top outer hoop (1). The support mechanism includes a strut (10). One end of the strut (10) is rotatably connected to the outer surface of the outer hoop (1), and the other end is rotatably connected to a fixing plate (12). The fixing plate (12) is threaded with a plug (13).
6. The tree anti-gnawing device according to claim 5, characterized in that, Spikes (11) are uniformly fixedly installed on the outer surface of the support rod (10).
7. The tree anti-gnawing device according to claim 1, characterized in that, A cover (14) is fixedly installed on one side of the outer shell (2), a support rod (15) is fixedly installed inside the cover (14), a liquid storage box (16) is placed on the upper surface of the support rod (15), and a through hole (17) is opened at the bottom of the cover (14).
8. The tree anti-gnawing device according to claim 7, characterized in that, The bottom of the cover (14) is an arc shape with an opening facing downwards.