A tree growth cone that facilitates sampling

By designing a tree growth cone that facilitates sampling, and utilizing a top sampler and graduated markings, the problems of difficult core extraction and cumbersome measurement were solved, enabling complete core extraction and rapid measurement, thus improving operational efficiency and accuracy.

CN224456262UActive Publication Date: 2026-07-03GUANGZHOU INST OF FORESTRY & LANDSCAPE ARCHITECTURE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU INST OF FORESTRY & LANDSCAPE ARCHITECTURE
Filing Date
2025-07-08
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing tree growth cones are difficult to extract, prone to breakage, and cumbersome to measure in length, especially when sampling old trees, they are prone to getting stuck.

Method used

A tree growth cone for easy sampling was designed, comprising a hand-held tube, a cone tube, an ejector, and graduated markings. The ejector can push the sample core into the cone tube and remove it completely. The flip-top prevents clogging, and the graduated markings are used to quickly measure the sample core length.

Benefits of technology

It enables complete removal of the core sample and rapid, accurate length measurement, solving the problems of difficult core sample removal and cumbersome measurement, and improving operational efficiency and accuracy.

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Abstract

This utility model relates to the field of tree age assessment tools, specifically to a tree growth cone that facilitates sampling. It includes a hand-held tube and a conical tube. The top of the hand-held tube houses a sample ejector, and the conical tube has a cavity in the middle for storing the sample core. The cavity extends through the conical tube, with one end connected to the hand-held tube and the other end equipped with a drill bit. A hinged flap is attached to the side of the conical tube, and graduation marks are located on one side of the cavity. The sample ejector facilitates easy sampling of the drill bit by pushing the sample core from the drill bit into the conical tube. Opening the flap allows for complete removal of the sample core from the cavity. The flap facilitates cleaning of the cavity and prevents blockage of the conical tube. The graduation marks enable rapid and accurate measurement of the sample core length. This invention solves the problems of difficulty in sample core removal, easy breakage of the sample core, and cumbersome length measurement in existing tree growth cones.
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Description

Technical Field

[0001] This utility model relates to the technical field of tree age identification tools, and in particular to a tree growth cone that facilitates sampling. Background Technology

[0002] A tree growth cone is a tool used to sample trees by drilling into the core of the wood. Detailed analysis of the obtained samples can reveal indicators such as the tree's growth rate, age, firmness, environmental pollution levels, and nutrient transport.

[0003] Existing tree growth cones primarily involve drilling into the tree trunk through a cone tube, followed by sampling using a sampling rod inserted into the tube. However, during sampling, the hardness of the wood core sample makes it prone to breakage during the insertion and extraction of the sample, hindering subsequent processing. Typically, after sampling, a ruler is used to measure the wood core sample on the sampling rod; however, the bark of the core sample is often fragmented, leading to inaccurate measurements and making the operation cumbersome. Sometimes, when sampling older trees with tree growth cones, hollow areas can occur. When the tree growth cone drill bit enters a hollow area, it becomes difficult to pull out, resulting in a jam and making sample extraction challenging.

[0004] Therefore, there is an urgent need for a tree growth cone that is easy to read the core length and easy to sample. Utility Model Content

[0005] To address the problems of difficulty in extracting the core sample, easy breakage of the core sample, and cumbersome process of measuring the length of the core sample when sampling existing tree growth cones.

[0006] This utility model provides a tree growth cone for easy sampling, including a hand-held tube and a cone tube. The top of the hand-held tube houses a sampler, and the middle of the cone tube has a cavity for storing sample cores. The cavity extends through the cone tube, one end of the cone tube is connected to the hand-held tube, and the other end of the cone tube has a drill bit. A flip cover is hinged to the side of the cone tube, and the side wall of the cone tube has scale markings located on one side of the cavity.

[0007] Preferably, the drill bit has a forward thread and a serrated reverse thread at the end of the drill bit.

[0008] Preferably, the sampler includes a connecting part and a sampling part. The connecting part is connected to one end of the hand-held tube. The length of the sampling part is equal to the length of the drill bit, and the diameter of the sampling part is smaller than the diameter of the receiving cavity.

[0009] Preferably, the scale marks begin at the connection between the drill bit and the tapered tube, and end at the connection between the tapered tube and the handgrip.

[0010] Preferably, one end of the tapered tube is connected to the middle of the hand grip tube, and the tapered tube and the hand grip tube form a "T" shape.

[0011] Preferably, the end of the hand-held tube away from the ejector is provided with a rubber sleeve.

[0012] The beneficial effects of this invention are reflected in the following: By setting up a top sampler and storing it at the top of the hand-held tube, it is convenient to use the top sampler to sample the drill bit at any time. The top sampler pushes the sample core inside the drill bit into the conical tube. Then, by opening the flip cover, the sample core located in the receiving cavity can be completely removed. The flip cover facilitates cleaning of the receiving cavity and prevents blockage of the conical tube. By setting scale markings, the length of the sample core can be measured quickly and accurately. This solves the problems of difficulty in removing the sample core, easy breakage of the sample core, and cumbersome process of measuring the length of the sample core in existing tree growth cone sampling methods. Attached Figure Description

[0013] Figure 1 A three-dimensional view of a tree growth cone that facilitates sampling, provided by this utility model.

[0014] Figure 2 An exploded view of a tree growth cone that facilitates sampling, provided by this utility model.

[0015] In the figure: 1-Hand-held tube; 2-Conical tube; 21-Accommodation cavity; 22-Drill bit; 23-Flip cap; 24-Graduation mark; 3-Ejector; 31-Connecting part; 32-Sampling part. Detailed Implementation

[0016] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] Reference Figures 1-2 A tree growth cone for easy sampling includes a hand-held tube 1 and a cone tube 2. The top of the hand-held tube 1 houses a sampler 3. The cone tube 2 has a cavity 21 for storing sample cores in the middle. The cavity 21 extends through the cone tube 2. One end of the cone tube 2 is connected to the hand-held tube 1. The other end of the cone tube 2 is equipped with a drill bit 22. A flap 23 is hinged to the side of the cone tube 2. The side wall of the cone tube 2 is provided with a scale mark 24, which is located on one side of the cavity 21.

[0018] By setting up a top sampler 3 and storing it at the top of the hand-held tube 1, it is easy to access the top sampler 3 for sampling the drill bit 22 at any time. The top sampler 3 pushes the sample core inside the drill bit 22 into the cone tube 2. Then, by opening the flip cover 23, the sample core located in the receiving cavity 21 can be completely removed. The flip cover 23 facilitates the cleaning of the receiving cavity 21 and prevents the cone tube 2 from becoming clogged. By setting a scale mark 24, the length of the sample core can be measured quickly and accurately. This solves the problems of difficulty in removing the sample core, easy breakage of the sample core, and cumbersome process of measuring the length of the sample core in existing tree growth cone sampling methods.

[0019] In some embodiments, the drill bit 22 is provided with a forward thread and the end of the drill bit 22 is provided with a serrated reverse thread.

[0020] The positive spiral thread is located on the outer wall of the drill bit 22. The positive spiral thread is used to drill into the tree trunk. By setting the reverse spiral thread, when the tree growth cone is drilled into the hollow tree trunk, the reverse spiral can be used to remove the tree growth cone smoothly, preventing the cone from getting stuck in the tree trunk.

[0021] In some implementations, refer to Figure 2 The sampler 3 includes a connecting part 31 and a sampling part 32. The connecting part 31 is connected to one end of the hand-held tube 1. The length of the sampling part 32 is equal to the length of the drill bit 22. The diameter of the sampling part 32 is smaller than the diameter of the accommodating cavity 21.

[0022] The connecting part 31 can be securely connected to the hand-held tube 1 by means of, but not limited to, threaded connection and magnetic connection. Since the length of the sampling part 32 is equal to the length of the drill bit 22, it ensures that when the ejector 3 is fully advanced into the drill bit 22, the front end of the ejector 3 can reach the end position of the drill bit 22, guaranteeing that the entire sample core can be completely ejected without leaving any residue. Because the diameter of the sampling part 32 is smaller than the diameter of the receiving cavity 21, it ensures that the sampling part 32 can slide smoothly within the receiving cavity 21 without getting stuck.

[0023] Preferred, refer to Figure 2 The scale mark 24 starts at the connection between the drill bit 22 and the tapered tube 2, and ends at the connection between the tapered tube 2 and the hand grip tube 1.

[0024] After drill bit 22 penetrates the tree trunk, the core sample enters the cavity 21 of the tapered tube 2. The ejector 3 then pushes the core sample out of drill bit 22. The core sample advances along the scale mark 24. By opening the flip cover 23, the length of the core sample can be directly read through the scale mark 24. This avoids measurement errors caused by core sample breakage or bark fragmentation during extraction, as is common in traditional methods. It improves measurement efficiency and accuracy.

[0025] In some embodiments, one end of the tapered tube 2 is connected to the middle of the hand grip tube 1, and the tapered tube 2 and the hand grip tube 1 form a "T" shape.

[0026] The "T" shaped structure facilitates force application and rotation. The hand grip tube 1 serves as the main operating lever, while the tapered tube 2 extends laterally. The user holds both ends of the hand grip tube 1 with both hands and rotates the tapered tube 2 like tightening a screw, which is labor-saving and easy to control the direction.

[0027] In some embodiments, a rubber sleeve is provided at the end of the hand-held tube 1 away from the sampler 3.

[0028] The rubber sleeve increases friction, effectively preventing the hand from slipping during rotation or pressure application. The soft texture of the rubber sleeve conforms to the palm of the hand, making it more comfortable than metal or plastic handles.

[0029] In the description of the embodiments of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "center," "top," "bottom," "top," "bottom," "inner," "outer," "inner side," and "outer side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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. "Inner side" refers to the interior or enclosed area or space. "Outer perimeter" refers to the area surrounding a specific component or specific area.

[0030] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "assembly" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tree growth increment borer for facilitating sampling, characterized by: include: The device consists of a hand-held tube and a conical tube. The top of the hand-held tube houses the sample ejector, and the middle of the conical tube has a cavity for storing the sample core. The cavity extends through the conical tube, and one end of the conical tube is connected to the hand-held tube. The other end of the conical tube has a drill bit. A flip-top is hinged to the side of the conical tube, and the side wall of the conical tube has graduation marks located on one side of the cavity.

2. A tree growth increment borer of claim 1, wherein: The drill bit has a forward-rotating thread, and the end of the drill bit has a serrated reverse-rotating thread.

3. A tree growth increment borer of claim 1, wherein: The sampler includes a connecting part and a sampling part. The connecting part is connected to one end of the hand-held tube. The length of the sampling part is equal to the length of the drill bit, and the diameter of the sampling part is smaller than the diameter of the receiving cavity.

4. A tree growth increment borer according to claim 1 or 3, wherein: The scale markings begin at the connection between the drill bit and the tapered tube and end at the connection between the tapered tube and the handgrip.

5. A tree growth increment borer of claim 1, wherein: One end of the tapered tube is connected to the middle of the hand grip tube, and the tapered tube and the hand grip tube form a "T" shape.

6. A tree growth increment borer of claim 1, wherein: The end of the hand-held tube furthest from the sampler is provided with a rubber sleeve.