Multifunctional miniature tree growth cone

Abstract

The utility model relates to the field of miniature tree growth cones, in particular to a multifunctional miniature tree growth cone which comprises a sampling head fixing piece provided with a containing cavity, a sampling head installed in the containing cavity, a sampling handle with one end detachably connected to the sampling head fixing piece and abutting against the sampling head, and a sampling needle detachably connected with the sampling head fixing piece. The sampling head is provided with a sampling hole; the sampling needle penetrates through the sampling hole; wherein the sampling head is installed in the containing cavity, the sampling handles are installed on the two sides of the sampling head fixing piece, the sampling head is locked on the sampling head fixing piece, and then sampling can be conducted; after sampling is completed, the sampling needle penetrates through the sampling hole, and the sample is pushed out; during storage, the sampling handle is detached, the sampling head is reversely arranged on the sampling head fixing piece, and the sampling handle and the sampling needle are connected to the sampling head fixing piece. The problems that a sample of an existing miniature tree growth cone is difficult to push out, a drill bit and a drill bit installation disc are troublesome to assemble, and the drill bit is prone to being damaged or lost when stored are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro tree increment borers, and more specifically to a multi-functional micro tree increment borer. Background Art

[0002] A micro increment borer is a commonly used sampling tool for collecting micro cores of woody plants. During the study of the annual radial growth of trees, a micro increment borer is used to collect the micro cores of trees once a week or every two weeks, and made into biological sections to measure the number of vascular cambium cells and xylem cells, as well as to determine the development period of xylem cells. Using a micro increment borer can reduce the damage to trees caused by frequent sampling and enable the trees to grow normally.

[0003] The existing micro increment borer has an integral structure, and the sampling head is fixedly convex, so the control of the sampling length and sampling diameter is not flexible enough. Therefore, a micro tree increment borer with a replaceable drill bit has been introduced in the market, such as the Chinese patent with the application number 202120826195.0. However, the porous structure design of its drill bit mounting disc may cause difficulties in pushing out the sample or blockage in the drill bit mounting disc; the connection between the drill bit and the drill bit mounting disc uses a threaded connection, which is relatively troublesome to assemble, and it is difficult to replace the drill bit after being stressed; in addition, whether it is a traditional integral structure micro increment borer or a micro tree increment borer with a replaceable drill bit, when storing, the drill bit for sampling is in an outward protruding state, which is easy to be damaged. If the drill bit is taken out and stored separately, it is easy to be lost. Summary of the Utility Model

[0004] In order to solve the problems of difficult sample pushing out, relatively troublesome assembly between the drill bit and the drill bit mounting disc, and easy damage or loss of the drill bit during storage in the existing micro tree increment borer.

[0005] The utility model provides a multi-functional micro tree increment borer, which includes a sampling head fixing part, a sampling head, a sampling handle and a sampling needle; the sampling head fixing part is provided with a receiving cavity that penetrates through the front and back; the sampling head is installed in the receiving cavity, and the sampling head is provided with a sampling hole that penetrates through the front and back; one end of the sampling handle is detachably connected to the side surface of the sampling head fixing part and abuts against the sampling head; the sampling needle and the sampling head fixing part are detachably connected, and the sampling needle is used to penetrate through the sampling hole; wherein, when the sampling head is installed in the receiving cavity and the sampling handle is installed on both sides of the sampling head fixing part to lock the sampling head on the sampling head fixing part, sampling can be carried out; after sampling is completed, the sampling needle penetrates through the sampling hole to push out the sample; during storage, the sampling handle is disassembled, the sampling head is reversely installed on the sampling head fixing part, and the sampling handle and the sampling needle are connected to the sampling head fixing part.

[0006] Preferably, the sampling needle includes a fixedly connected sampling needle base and a sampling needle body. An extended side wall is provided on one side of the sampling needle base close to the sampling needle body. Threads are provided on both the inner side of the extended side wall and the outer side of one end of the sampling head fixing member. The extended side wall is threadedly connected to one end of the sampling head fixing member.

[0007] Preferably, the length of the sampling needle body is not less than the length of the sampling hole, and the diameter of the sampling needle body is not greater than the diameter of the sampling hole.

[0008] Preferably, the accommodating cavity includes a first cavity and a second cavity that communicate with each other. The diameter of the first cavity is larger than that of the second cavity. An opening for taking out the sample is provided on one side of the second cavity; the sampling head includes a fixedly connected connecting portion and a sampling portion. The sampling hole penetrates through the connecting portion and the sampling portion, and the connecting portion is nested in the first cavity.

[0009] Preferably, the length of the connecting portion is equal to the length of the first cavity, and the length of the sampling portion is less than the length of the second cavity.

[0010] Preferably, a threaded hole communicating with the first cavity is provided on the side surface of the sampling head fixing member, and one end of the sampling handle is threadedly connected to the threaded hole and abuts against the sampling head.

[0011] Preferably, 1-4 equally spaced threaded holes are provided on the side surface of the sampling head fixing member, and the number of threaded holes is equal to that of the sampling handles.

[0012] Preferably, the sampling head fixing member, the sampling head, the sampling handle, and the sampling needle are all made of metal.

[0013] The beneficial effects of the present utility model are reflected in that a front-to-back through accommodating cavity is provided on the sampling head fixing member, and a front-to-back through sampling hole is provided on the sampling head. By installing the sampling head in the accommodating cavity and installing the sampling handle on both sides of the sampling head fixing member, the sampling handle locks the sampling head on the sampling head fixing member, and then sampling can be carried out; after sampling, use the sampling needle to penetrate the sampling hole to push out the sampled sample. When samples of different sizes need to be taken, only the sampling head with different-sized sampling holes needs to be replaced; during storage, the sampling head is reversely installed on the sampling head fixing member to prevent the sampling head from being bent or broken due to external forces, and the sampling handle and the sampling needle are connected to the sampling head fixing member to prevent the sampling handle and the sampling needle from being lost. It solves the problems of difficult sample pushing, troublesome assembly of the drill bit and the drill bit mounting disc, and easy damage or loss of the drill bit during storage in the existing micro tree growth cone. Description of the Drawings

[0014] Figure 1 It is a three-dimensional view of the multifunctional micro tree growth cone provided by the present utility model during sampling.

[0015] Figure 2A perspective view when the sampling head is reversely nested in the sampling head fixing member and the sampling needle penetrates through the sampling hole.

[0016] Figure 3 is Figure 2 a cross-sectional view of.

[0017] Figure 4 A cross-sectional view when the sampling head is reversely nested in the sampling head fixing member.

[0018] In the figure: 1 - sampling head fixing member; 11 - accommodation cavity; 111 - first cavity; 112 - second cavity; 113 - opening; 12 - threaded hole; 2 - sampling head; 21 - sampling hole; 22 - connecting portion; 23 - sampling portion; 3 - sampling handle; 4 - sampling needle; 41 - sampling needle base; 411 - extended side wall; 42 - sampling needle body. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0020] Referring to Figures 1-4 , a multifunctional micro tree growth cone includes a sampling head fixing member 1, a sampling head 2, a sampling handle 3 and a sampling needle 4; the sampling head fixing member 1 is provided with an accommodation cavity 11 that penetrates through the front and back; the sampling head 2 is installed in the accommodation cavity 11, and the sampling head 2 is provided with a sampling hole 21 that penetrates through the front and back; one end of the sampling handle 3 is detachably connected to the side surface of the sampling head fixing member 1 and abuts against the sampling head 2; the sampling needle 4 and the sampling head fixing member 1 are detachably connected, and the sampling needle 4 is used to penetrate through the sampling hole 21; wherein, the sampling head 2 is installed in the accommodation cavity 11, the sampling handle 3 is installed on both sides of the sampling head fixing member 1, and the sampling head 2 is locked on the sampling head fixing member 1, then sampling can be carried out; after sampling, the sampling needle 4 penetrates through the sampling hole 21 to push out the sample; when storing, the sampling handle 3 is disassembled, the sampling head 2 is reversely installed on the sampling head fixing member 1, and the sampling handle 3 and the sampling needle 4 are connected to the sampling head fixing member 1.

[0021] When sampling, install the sampling head 2 in the accommodation cavity 11, install the sampling handle 3 on both sides of the sampling head fixing member 1, and use the sampling handle 3 to lock the sampling head 2 on the sampling head fixing member 1, then sampling can be carried out; after sampling, use the sampling needle 4 to penetrate the sampling hole 21 and push out the sampled sample. When samples of different sizes need to be taken, only need to replace the sampling head 2 with sampling holes 21 of different sizes; when storing, disassemble the sampling handle 3, reversely install the sampling head 2 on the sampling head fixing member 1 to prevent the sampling head 2 from being bent or broken due to external force; finally, connect the sampling handle 3 and the sampling needle 4 to the sampling head fixing member 1 to prevent the sampling handle 3 and the sampling needle 4 from being lost. This solves the problems of difficult sample ejection, troublesome assembly of the drill bit and the drill bit mounting disc, and easy damage or loss of the drill bit during storage in the existing micro tree growth cone.

[0022] In some embodiments, as Figure 3 shown, the sampling needle 4 includes a sampling needle base 41 and a sampling needle body 42 which are fixedly connected. On one side of the sampling needle base 41 close to the sampling needle body 42, there is an extended side wall 411. Threads are provided on both the inner side of the extended side wall 411 and the outer side of one end of the sampling head fixing member 1, and the extended side wall 411 is threadedly connected to one end of the sampling head fixing member 1.

[0023] The inventor found that the existing sampler does not have a storage device for the sampling needle 4, and the sampling needle 4 is externally mounted, resulting in easy damage or loss of the sampling needle 4. When storing, put the sampling needle base 41 on one end of the sampling head fixing member 1 and rotate the sampling needle base 41 so that the sampling needle base 41 is threadedly connected to the sampling head fixing member 1, and the sampling needle body 42 is wrapped in the sampling hole 21 to be protected, avoiding damage or loss of the sampling needle 4. The sampling needle body 42 is a solid structure, which is convenient for pushing out the sample.

[0024] In some embodiments, as Figure 3 shown, the length of the sampling needle body 42 is not less than the length of the sampling hole 21, and the diameter of the sampling needle body 42 is not greater than the diameter of the sampling hole 21. This is convenient for the sampling needle body 42 to penetrate the sampling hole 21 and completely push out the sample in the hole from the sampling hole 21, avoiding blockage of the sampling hole 21.

[0025] In some embodiments, as Figure 4 shown, the accommodation cavity 11 includes a first cavity 111 and a second cavity 112 that communicate with each other. The diameter of the first cavity 111 is greater than the diameter of the second cavity 112. An opening 113 for taking out the sample is provided on one side of the second cavity 112; the sampling head 2 includes a connecting portion 22 and a sampling portion 23 which are fixedly connected. The sampling hole 21 penetrates through the connecting portion 22 and the sampling portion 23, and the connecting portion 22 is nested in the first cavity 111.

[0026] Both the connecting part 22 and the sampling part 23 are hollow columnar structures. The diameter of the sampling part 23 is smaller than that of the connecting part 22. The sampling part 23 with a smaller diameter is convenient for piercing into the tree trunk for sampling, and the connecting part 22 with a larger diameter is convenient for being nested and fixed in the first cavity 111; as Figure 2 shown, the edge of the opening 113 is a smooth curve to prevent scratching fingers during sampling.

[0027] In some embodiments, the length of the connecting part 22 is equal to the length of the first cavity 111, and the length of the sampling part 23 is less than the length of the second cavity 112.

[0028] During sampling, the bottom of the first cavity 111 supports one end of the connecting part 22 away from the sampling part 23, so that the sampling part 23 is exposed outside the receiving cavity 11, facilitating the sampling operation; during storage, the sampling head 2 is reversely installed on the sampling head fixing member 1. The length of the connecting part 22 is equal to the length of the first cavity 111, so that the first cavity 111 can completely accommodate the connecting part 22, facilitating the subsequent connection of the sampling needle 4 and the sampling head fixing member 1; the length of the sampling part 23 is less than the length of the second cavity 112, so that the second cavity 112 can completely accommodate the sampling part 23.

[0029] In some embodiments, as Figure 3 shown, the side surface of the sampling head fixing member 1 is provided with a threaded hole 12 communicating with the first cavity 111. One end of the sampling handle 3 is threadedly connected to the threaded hole 12 and abuts against the sampling head 2.

[0030] By providing the threaded hole 12 communicating with the first cavity 111 and threadedly connecting the sampling handle 3, during sampling, the sampling handle 3 increases the force-bearing area. Holding the sampling handle 3 and rotating it left and right facilitates the extraction of the sampling head 2.

[0031] Furthermore, the side surface of the sampling head fixing member 1 is provided with 1-4 equally spaced threaded holes 12, and the number of the threaded holes 12 is equal to the number of the sampling handles 3.

[0032] Preferably, as Figure 1 shown, the side surface of the sampling head fixing member 1 is provided with 2 equally spaced threaded holes 12. Two sampling handles 3 are threadedly connected to the two threaded holes 12 respectively. On the one hand, the two sampling handles 3 are convenient for being grasped by both hands. Rotating the sampling handles 3 drives the sampling head 2 to extract the sampling head 2; on the other hand, compared with setting 1 sampling handle 3, the two sampling handles 3 fix the sampling head 2 more stably, and compared with setting 4 sampling handles 3, the two sampling handles 3 are more convenient for disassembly.

[0033] In some embodiments, the sampling head fixing member 1, the sampling head 2, the sampling handle 3 and the sampling needle 4 are all made of metal.

[0034] On the one hand, the metal material has high strength and is easy to process, making the sampling head fixing part 1, the sampling head 2, the sampling needle 4 and the sampling handle 3 durable; on the other hand, the metal material is magnetized so that the sampling head fixing part 1 and the sampling head 2, the sampling needle 4, the sampling handle 3 attract each other, facilitating the alignment and connection of the sampling head 2, the sampling needle 4, the sampling handle 3 and the sampling head fixing part 1.

[0035] In addition, the alignment and connection of the sampling head 2, the sampling needle 4, the sampling handle 3 and the sampling head fixing part 1 can also be facilitated by setting magnetic materials such as iron sheets or magnets on the sampling head fixing part 1 to make the sampling head fixing part 1 attract the sampling head 2, the sampling needle 4, and the sampling handle 3.

[0036] Specific working method:

[0037] During sampling, as Figure 1 shown, nest the connecting part 22 into the first cavity 111, and the sampling part 23 is exposed at one end of the sampling head fixing part 1; thread the sampling handle 3 onto the threaded hole 12, and the sampling handle 3 passes through the threaded hole 12 and abuts against the connecting part 22 of the sampling head 2 to complete the assembly.

[0038] Align the sampling part 23 with the tree trunk, and use a hammer to strike the end of the sampling head fixing part 1 away from the sampling head 2 to make the sampling part 23 pierce into the tree trunk. Hold the sampling handle 3 and rotate it left and right to pull out the sampling head 2 from the tree trunk.

[0039] After sampling, as Figure 2 shown, use the sampling needle 4 to push the sample out of the sampling hole 21. The sampling needle base 41 enters the sampling hole 21 from one side of the connecting part 22, and gently push the sample out from the opening 113 to complete the sample acquisition work.

[0040] During storage, disassemble the sampling handle 3, reverse the installation of the sampling head 2 on the sampling head fixing part 1. The sampling needle base 41 enters the sampling hole 21 from one side of the connecting part 22, and the sampling needle body 42 is wrapped in the sampling hole 21 for protection. Thread the sampling needle base 41 and the sampling head fixing part 1 together to prevent the sampling needle 4 from being bent or lost. Thread the sampling handle 3 onto the threaded hole 12 to prevent the sampling handle 3 from being bent or lost.

[0041] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top portion", "bottom portion", "inner", "outer", "inner side", "outer side", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. Among them, the "inner side" refers to the internal or enclosed area or space. The "periphery" refers to the area surrounding a specific component or a specific area.

[0042] In the description of the embodiments of the present utility model, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0043] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multifunctional micro tree growth cone, characterized in that: Comprising: A sampling head fixture (1) provided with a receiving cavity (11) penetrating through from front to back; A sampling head (2) installed in the receiving cavity (11) and provided with a sampling hole (21) penetrating through from front to back; A sampling handle (3) with one end detachably connected to the side of the sampling head fixture (1) and abutting against the sampling head (2); A sampling needle (4) detachably connected to the sampling head fixture (1) for penetrating through the sampling hole (21); Wherein, the sampling head (2) is installed in the receiving cavity (11), the sampling handle (3) is installed on both sides of the sampling head fixture (1) to lock the sampling head (2) on the sampling head fixture (1), and then sampling can be carried out; after sampling is completed, the sampling needle (4) penetrates through the sampling hole (21) to push out the sample; during storage, the sampling handle (3) is disassembled, the sampling head (2) is reversely installed on the sampling head fixture (1), and the sampling handle (3) and the sampling needle (4) are connected to the sampling head fixture (1).

2. The multifunctional micro tree growth cone according to claim 1, characterized in that: The sampling needle (4) includes a sampling needle base (41) and a sampling needle body (42) fixedly connected. On one side of the sampling needle base (41) close to the sampling needle body (42), there is an extended side wall (411). Threads are provided on the inner side of the extended side wall (411) and the outer side of one end of the sampling head fixture (1), and the extended side wall (411) is threadedly connected to one end of the sampling head fixture (1).

3. The multifunctional micro tree growth cone according to claim 2, characterized in that: The length of the sampling needle body (42) is not less than the length of the sampling hole (21), and the diameter of the sampling needle body (42) is not greater than the diameter of the sampling hole (21).

4. A multifunctional micro tree growth cone according to claim 1, characterized in that: The receiving cavity (11) includes a first cavity (111) and a second cavity (112) that communicate with each other. The diameter of the first cavity (111) is greater than the diameter of the second cavity (112). On one side of the second cavity (112), there is an opening (113) for taking out the sample; the sampling head (2) includes a connecting portion (22) and a sampling portion (23) fixedly connected. The sampling hole (21) penetrates through the connecting portion (22) and the sampling portion (23), and the connecting portion (22) is nested in the first cavity (111).

5. The multifunctional micro tree growth cone according to claim 4, characterized in that: The length of the connecting portion (22) is equal to the length of the first cavity (111), and the length of the sampling portion (23) is less than the length of the second cavity (112).

6. A multifunctional micro tree growth cone according to claim 4, characterized in that: On the side of the sampling head fixture (1), there is a threaded hole (12) communicating with the first cavity (111). One end of the sampling handle (3) is threadedly connected to the threaded hole (12) and abuts against the sampling head (2).

7. A multifunctional micro tree growth cone according to claim 6, characterized in that: On the side of the sampling head fixture (1), there are 1 - 4 equally spaced threaded holes (12), and the number of the threaded holes (12) is equal to the number of the sampling handles (3).

8. A multifunctional micro tree growth cone according to claim 1, characterized in that: The sampling head fixture (1), the sampling head (2), the sampling handle (3), and the sampling needle (4) are all made of metal material.

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