Forest tree growth sampling cone

Abstract

The utility model relates to the technical field of growth cones, and discloses a forest growth sampling cone which comprises a column body and a threaded sampling tube, a rocking handle is arranged at one end of the threaded sampling tube, a rectangular groove is formed in the column body, a movable block is movably installed in the rectangular groove, a threaded hole is formed in the movable block, and the threaded hole is communicated with the column body. The other end of the threaded sampling pipe penetrates through the column body and is in threaded connection with the movable block, a fixed seat is fixedly mounted at the end part of the column body, two half gears are symmetrically and rotationally mounted on the fixed seat, and arc-shaped holding arms are fixedly mounted on the two half gears; a rack meshed with the two half gears is fixedly installed at the end, close to the fixed seat, of the movable block, the end of the rack penetrates through the fixed seat, and a through hole allowing the threaded sampling pipe to penetrate through is formed in the rack. The utility model aims to solve the problems that a series of preparatory work needs to be carried out before the sampling work of the conventional growth cone, the operation steps are relatively tedious, and the conventional growth cone is not convenient enough to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of growth cones, and in particular relates to a forest tree growth sampling cone. Background Art

[0002] Tree growth cones are a commonly used tool in forestry research. Without disrupting the normal growth of trees, they can drill core samples from trees to analyze and determine the tree's growth rate, age, firmness, environmental pollution, and nutrient migration.

[0003] Chinese utility model CN220872114U discloses a tree growth cone for forestry sampling. The cone comprises a movable mechanism, including a growth cone, a fastening ring slidably connected to the surface of the growth cone, an elastic cord fixedly connected to the surface of the fastening ring, two elastic cords evenly distributed on the surface of the fastening ring, a clamping block fixedly connected to the end of the elastic cord remote from the fastening ring, and a fixed block movably connected to the surface of the growth cone via a bearing, two fixed blocks parallel to each other on either side of the bearing; and a tightening mechanism including a stopper, the surface of the stopper fixedly connected to the surface of the fastening ring. When in use, the fastening ring and a screw can fix and limit the drilling position of the growth cone, preventing injuries caused by the operator's hand rubbing against the tree due to deviation in the direction of force, making it easy to operate. However, before sampling, the fastening ring must be locked to the tree trunk using a screw to fix and limit the growth cone, which is a cumbersome operation and inconvenient. Therefore, we proposed a forest tree growth sampling cone to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the current growth cone needs to carry out a series of preparations before sampling, the operation steps are relatively cumbersome, and it is not convenient to use.

[0005] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0006] A forest growth sampling cone comprises a column and a threaded sampling tube, one end of the threaded sampling tube is provided with a shaking handle, a rectangular groove is provided in the column, a movable block is movably installed in the rectangular groove, the movable block is provided with a threaded hole, the other end of the threaded sampling tube passes through the column and is threadedly connected to the movable block, a fixed seat is fixedly installed at the end of the column, two half gears are symmetrically mounted on the fixed seat, and arc-shaped clamping arms are fixedly mounted on the two half gears, a rack meshing with the two half gears is fixedly mounted on the end of the movable block close to the fixed seat, the end of the rack passes through the fixed seat, and a through hole for the threaded sampling tube to pass through is opened on the rack.

[0007] Furthermore, a contact plate is fixedly mounted on the end of the rack away from the movable block. The contact plate is made of rubber and has a circular hole in its center. This structural design allows the contact plate to replace the end of the rack in contact with the tree surface, thereby increasing friction at the contact point and protecting the end of the rack.

[0008] Furthermore, two protective plates are fixedly mounted on the upper and lower sides of the rack between the contact baffle and the movable block. With this structural design, the two protective plates are arranged on the upper and lower sides of the rack to protect the rack and prevent the rack from getting stuck with the fixed seat.

[0009] It is further defined that a plurality of arc-shaped inverted teeth are fixedly mounted on the arc-shaped embracing arms at even intervals. With such a structural design, when the arc-shaped embracing arms move toward each other to embrace the tree trunk, the arc-shaped inverted teeth will penetrate the tree trunk, thereby increasing the gripping force.

[0010] Furthermore, a compression spring is fixedly mounted between the movable block and the rectangular groove wall, and is sleeved around the outside of the threaded sampling tube. With this structural design, the compression spring provides a restoring force for the movable block and the rack. Upon release of the external force, the movable block and the rack return to their initial state, providing greater convenience during use.

[0011] It is further defined that a vertical handle is fixedly mounted on the column, and a non-slip rubber sleeve is provided on the vertical handle. Such a structural design is simple in structure and easy to use.

[0012] The utility model adopting the above technical solution has the following advantages:

[0013] The utility model is provided by holding the cylindrical end, bringing the entire device close to the tree trunk and applying a force. The rack end is subjected to a resistance force, which drives the two arc-shaped clamping arms to move toward each other through the half gear, thereby clamping the tree trunk. At this time, the threaded sampling tube can be rotated by shaking the handle, so that the threaded sampling tube can be extended into the tree trunk laterally along the rectangular groove with the cooperation of the movable block to perform sampling work. There is no need for complicated preparation work during operation, the operation is simple, and sampling is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0015] Figure 1 This is a structural diagram of a tree growth sampling cone of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the cylindrical portion of a tree growth sampling cone according to the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of a forest growth sampling cone of the utility model when the rack and the protective plate are separated;

[0018] Figure 4 This is a schematic cross-sectional view of the rack portion of a tree growth sampling cone according to the present invention;

[0019] Figure 5 This is a structural schematic diagram of the half gear and arc-shaped clamping arm part of a forest growth sampling cone of the utility model.

[0020] The main component symbols are described as follows:

[0021] 1. Cylinder; 2. Threaded sampling tube;

[0022] 3. Movable block; 31. Rack; 32. Contact baffle; 33. Protective plate;

[0023] 4. Fixed seat; 41. Half gear;

[0024] 5. Arc-shaped clamping arm; 51. Arc-shaped inverted teeth;

[0025] 6. Compression spring; 7. Vertical handlebar. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts in the drawings or in the specification are numbered the same. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms such as "upper," "lower," "top," "bottom," "left," "right," "front," and "back" mentioned in the embodiments are merely references to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0027] like Figures 1 to 5As shown, a forest growth sampling cone of the present invention comprises a column 1 and a threaded sampling tube 2, one end of the threaded sampling tube 2 is provided with a shaking handle, a rectangular groove is provided in the column 1, a movable block 3 is movably installed in the rectangular groove, the movable block 3 is provided with a threaded hole, the other end of the threaded sampling tube 2 passes through the column 1 and is threadedly connected to the movable block 3, a fixing seat 4 is fixedly installed at the end of the column 1, two half gears 41 are symmetrically mounted on the fixing seat 4, and an arc-shaped clamping arm 5 is fixedly mounted on the two half gears 41, and the arc-shaped clamping arm 5 is evenly spaced and fixed. It is equipped with several arc-shaped inverted teeth 51. A rack 31 meshing with two half-gears 41 is fixedly installed on one end of the movable block 3 close to the fixed seat 4. The end of the rack 31 passes through the fixed seat 4. When the rack 31 moves, it will drive the two half-gears 41 to move toward each other, thereby driving the two arc-shaped clamping arms 5 to move toward each other to clamp the trunk. A through hole is provided on the rack 31 for the threaded sampling tube 2 to pass through. The movable block 3 and the rack 31 cooperate with the column 1 and the fixed seat 4 to limit the threaded sampling tube 2, so that the threaded sampling tube 2 can be moved in the specified direction to complete the sampling work.

[0028] A contact baffle 32 is fixedly installed at the end of the rack 31 away from the movable block 3. The contact baffle 32 is made of rubber and has a circular hole in the center. Two protective plates 33 are fixedly installed on the upper and lower sides of the rack 31 between the contact baffle 32 and the movable block 3. The two protective plates 33 can disperse the force on the rack 31 while allowing the rack 31 to slide smoothly in the fixed base 4 and the rectangular groove to avoid the rack 31 and the fixed base 4 from getting stuck.

[0029] A compression spring 6 is fixedly installed between the movable block 3 and the rectangular groove wall. The compression spring 6 is sleeved on the outside of the threaded sampling tube 2. A vertical handle 7 is fixedly installed on the column 1. The vertical handle 7 is provided with a non-slip rubber sleeve. The vertical handle 7 makes it easy to partially grasp the column 1 and facilitates the user to apply force.

[0030] The method of using the utility model is as follows:

[0031] When in use, check the entire device to ensure that the end of the threaded sampling tube 2 is in the through hole of the rack 31, then hold the vertical handle 7 with one hand to control the entire growth sampling cone to be close to the part of the tree trunk to be sampled;

[0032] When the contact baffle 32 is close to the tree trunk, a force is applied in the direction of the tree trunk. Under the action of the force, the rack 31 pushes the movable block 3, causing the movable block 3 to squeeze the compression spring 6 and move deeper into the rectangular groove. At this time, the rack 31 drives the two half gears 41 on the fixed seat 4 to rotate towards each other. The arc-shaped clamping arms 5 located on the two half gears 41 move towards each other until they are close to the surface of the tree trunk, clamping the trunk tightly. At this time, the arc-shaped inverted teeth 51 on the arc-shaped clamping arms 5 will penetrate the tree bark to improve its clamping ability.

[0033] Then, the threaded sampling tube 2 is rotated by shaking the handle so that the threaded sampling tube 2 is extended into the tree trunk with the cooperation of the movable block 3 to perform sampling. After the end of the threaded sampling tube 2 reaches the sampling depth, the threaded sampling tube 2 is rotated in the opposite direction to make the threaded sampling tube 2 retreat. After the threaded sampling tube 2 is separated from the trunk, the force applied to the column 1 is released, and the compression spring 6 drives the movable block 3 to move in the rectangular groove, prompting the rack 31 and the half gear 41 to return to their initial state. The arc-shaped clamping arm 5 is unfolded and away from the trunk, so that the entire growth sampling cone can be easily removed from the trunk, which is more convenient to use.

[0034] The above describes in detail the forest growth sampling cone provided by the present invention. The description of the specific embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the claims of the present invention.

Claims

1. A forest growth sampling cone, comprising a column (1) and a threaded sampling tube (2), wherein one end of the threaded sampling tube (2) is provided with a cranking handle, characterized in that: A rectangular groove is provided in the column (1), a movable block (3) is movably installed in the rectangular groove, a threaded hole is provided on the movable block (3), the other end of the threaded sampling tube (2) passes through the column (1) and is threadedly connected to the movable block (3), a fixed seat (4) is fixedly installed at the end of the column (1), two half gears (41) are symmetrically rotated and installed on the fixed seat (4), and arc-shaped clamping arms (5) are fixedly installed on the two half gears (41), and a rack (31) meshing with the two half gears (41) is fixedly installed on one end of the movable block (3) close to the fixed seat (4), the end of the rack (31) passes through the fixed seat (4), and a through hole for the threaded sampling tube (2) to pass through is opened on the rack (31).

2. The forest growth sampling cone according to claim 1, characterized in that: A contact baffle (32) is fixedly mounted on one end of the rack (31) away from the movable block (3). The contact baffle (32) is made of rubber, and a circular hole is provided at the center of the contact baffle (32).

3. The forest growth sampling cone according to claim 2, characterized in that: Two protective plates (33) are fixedly installed on the upper and lower sides of the rack (31) between the contact baffle (32) and the movable block (3).

4. The forest growth sampling cone according to claim 1, characterized in that: A plurality of arc-shaped inverted teeth (51) are fixedly mounted on the arc-shaped embracing arm (5) at even intervals.

5. The forest growth sampling cone according to claim 1, characterized in that: A compression spring (6) is fixedly installed between the movable block (3) and the rectangular groove wall, and the compression spring (6) is sleeved on the outside of the threaded sampling tube (2).

6. The forest growth sampling cone according to claim 1, characterized in that: A vertical handlebar (7) is fixedly mounted on the column (1), and an anti-slip rubber sleeve is provided on the vertical handlebar (7).

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