CN103567166A - Handheld drill used for clearing away saw dust blocking growth cone - Google Patents

Abstract

The invention relates to a hand-held drill for clearing the sawdust of the clogged growth cone. Its structural feature is that the top of the elastic buckle fixes the steel wire drill bit, the bottom of the elastic buckle is connected with the main shaft, the main shaft passes through the bracket, and is respectively connected to the upper umbrella teeth. It is connected with the lower bevel gear, the upper bevel gear and the lower bevel gear mesh with the big gear, the left fixed handle is fixed on the bracket, the right handle is fixed on the big gear through the fixing buckle, and the support handle is connected with the lower end of the bracket. The invention has the advantages of portability, less external requirements, recyclable use, and no pollution; compared with the charcoal burning method, the use of open flames is avoided, and the possibility of forest fires is eliminated; compared with the hammer beating method, the growth cones are better protected, etc. . An economical and practical device is provided for improving the working efficiency of field tree-ring sampling.

Description

A handheld drill for clearing clogged growth cone sawdust

the

technical field

The invention relates to the technical field of field sampling of tree rings, in particular to a hand-held drill used for cleaning sawdust in blocked growth cones.

the

Background technique

Tree core sampling is an important way for the forest industry to investigate and analyze tree growth, and it is an important reference index for analyzing tree growth rate, tree growth firmness, and nutrient migration and other related subjects. In addition, tree cores are also widely used in the field of dendrochronology. Dendrochronology is the study of the sequence of tree rings. It is a study of the growth rings of the xylem of trees in each year, and uses the annual rings to date and evaluate The science of past environmental change.

Trees are an important part of the human ecological environment. Its growth is closely related to the site environment and is affected by climate change. The width of most tree rings can truly record the favorable or unfavorable climate factors every year. From the changes in tree rings, we can not only understand the growth of trees over the years and the conditions and laws of climate change in the past years and long-term where they are located, but also the impact of climate change on the ecosystem resources that human beings depend on for survival. Therefore, using tree ring data to obtain climate and environmental changes has not only become one of the important methods to obtain past climate and environment evolution data, but also has been widely used in paleoclimate research; it can also help people predict future climate changes and Studying the impact of climate change on ecosystems plays a pivotal role in global change research.

At present, the commonly used methods for detecting tree rings in China are sampling with growth cones or cutting down trees. The use of growth cones for tree research is relatively accurate, and growth cones are more portable than other sampling equipment, easy to operate, and conducive to the selection of eligible trees for sampling, and this method will not cause adverse effects on tree growth. Green and environmentally friendly operation methods. But utilize manpower to rotate the growth cone, when the growth cone is screwed into the process of the tree xylem, the situation that the sawdust in the heart of the tree blocks the growth cone often occurs due to reasons such as internal corrosion of the tree. The usual method is to burn the metal strip, and then extend it into the inside of the drill pipe to burn the blocked sawdust; or use a hammer to hit the growth cone method, that is, place the iron rod at the blocked sawdust on the upper part of the growth cone drill bit, and tap it with a hammer to remove it. Sawdust clogging growth cones. In order to better protect the growth cone and improve the efficiency of field operations, it is particularly necessary to develop a device for cleaning up the sawdust inside the growth cone.

Contents of the invention

In view of the above, the object of the present invention is to provide a hand-held drill for cleaning wood chips that block growth cones. By using this device, the work efficiency of field tree ring sampling can be improved.

The purpose of the present invention is achieved through the following technical solutions:

A hand-held drill for cleaning wood chips that block growth cones is composed of a main spindle, a steel wire drill bit, an elastic buckle, a bracket, an upper bevel tooth, a lower bevel tooth, a large gear, a left fixed handle, a right handle, a fixed buckle and Composition of support handles. The top of the elastic buckle fixes the wire drill bit, the bottom of the elastic buckle is connected to the main spindle, the main spindle passes through the bracket, and is connected to the upper and lower bevel teeth respectively, and the upper and lower bevel teeth are meshed with the large gear. The left fixed handle is fixed on the support, the right handle is fixed on the gear wheel through the fixed buckle, and the support handle is connected with the lower end of the support.

Advantage of the present invention and the beneficial effect that produce comprise:

1. The present invention utilizes the principle of gear transmission, and designs a large gear and two bevel teeth that mesh with each other. The rotation of the large gear drives the bevel gear to rotate, and the bevel gear drives the main spindle to rotate, converting the circular motion into a linear motion to realize the drill bit. Grinding of tree debris improves work efficiency;

2. The invention is lightweight, easy to carry, and requires less external conditions. During field operations, the steel wire drill bit is fixed on the top of the elastic buckle. After use, the screw handle and the steel wire drill bit can be disassembled and placed, occupying less space. , the general field mountaineering bag can be carried;

3. The present invention adopts the steel wire drill bit to rotate and grind the blocked sawdust inside the growth cone drill pipe, which can be recycled and will not cause loss to the environment and equipment;

4. Compared with the metal strip burning method, the present invention avoids the use of open flames, eliminates the hidden danger of forest fires, and ensures forest safety;

5. At present, the carbon steel structure adopted by the growth cone is generally imported from European countries, and the price is relatively high. Hitting with a hammer can easily damage the drill bit of the growth cone and reduce the service life of the growth cone; adopt the present invention, better The growth cones are well protected, and the task of cleaning up the sawdust blocking the growth cones is completed.

Description of drawings

Figure 1 is a schematic diagram of the present invention.

Fig. 2 is a side view of Fig. 1 .

Fig. 3 is a schematic diagram of the elastic button in Fig. 1 .

Fig. 4 is a schematic diagram of the wire drill bit in Fig. 1 .

Detailed ways

As shown in Fig. 1 and Fig. 2, a kind of hand-held drill for cleaning the sawdust of blocked growth cones is composed of a main spindle 1, a steel wire drill bit 2, an elastic buckle 3, a bracket 4, an upper bevel tooth 5, and a lower bevel tooth 5 ', bull gear 6, left fixed handle 7, right handle 8, fixed buckle 9 and support handle 10 are formed. The elastic buckle 3 is in the shape of a truncated cone, which includes the outer wall of the twist buckle 3-2, three watercress buckles 3-1 with a central angle of 120° for fixing the screws, tightening the screw base 3-3 and the steel pad 3-4: The diameter of the outer wall at the lower end of the turnbuckle outer wall 3-2 is 3 cm, the diameter of the inner wall is 2.5 cm, the diameter of the outer wall at the upper end is 1.5 cm, and the diameter of the inner wall is 1 cm. The spiral base 3-3 is fixed on the main spindle 1 through threads; the three watercress buckles 3-1 for fixing the screws are seated on the steel sheet pad 3-4 with a central angle of 120°; the main spindle 1 is supported on the steel sheet Pad 3-4, the screw buckle outer wall 3-2 covers the watercress buckle 3-1 and the steel sheet pad 3-4 is threadedly connected with the inner side of the screw base 3-3. The top of the elastic buckle 3 fixes the wire drill bit 2 . Steel wire drill bit 2 is welded by steel wire 2-1 and drill bit 2-2, and wherein steel wire 2-1 length is 75cm, and drill bit 2-2 is No. 5 common drill bits. The bottom of the elastic buckle 3 is connected to the main spindle 1, and the main spindle 1 passes through the upper bevel tooth 5 and the lower bevel tooth 5' fixed in the bracket 4 to connect with the support handle 10; the upper bevel tooth 5 and the lower bevel tooth 5' The diameter is 2.5cm, and 15 teeth are arranged on the conical surface; the upper bevel tooth 5 and the lower bevel tooth 5' mesh with the bull gear 6, and the bevel gear 6 has a diameter of 12cm, and 65 teeth are arranged on the circumference. The left fixed handle 7 is fixed on the bracket 4, and the right handle 8 is fixed on the large gear 6 through the fixed buckle 9.

When cleaning the blocked growth cone sawdust, the support handle 10 is placed on the abdomen, the drill bit 2 is inserted into the inside of the growth cone drill pipe, the left hand holds the left fixed handle 7, and the right handle 8 is shaken by hand, and the large gear 6 starts to rotate, driving the inside of the bracket 4. The upper bevel tooth 5 and the lower bevel tooth 5' rotate, changing from circular motion to linear motion, driving the main spindle 1 to rotate, and clamping the steel wire drill bit 2 with the watercress buckle 3-1, thereby driving the drill bit 2 to rotate, and the drill bit 2 is growing The inside of the cone drill pipe is sanded to remove tree debris that is clogging the inside of the growth cone.

Claims (1)

1. A hand-held drill for clearing clogged growth cone sawdust, which consists of a main spindle (1), a wire drill bit (2), an elastic buckle (3), a bracket (4), an upper bevel tooth (5), a lower Bevel tooth (5′), large gear (6), left fixed handle (7), right handle (8), fixed buckle (9) and support handle (10), characterized by elastic buckle (3) top Fix the wire drill bit (2), connect the bottom of the elastic buckle (3) to the main shaft (1), and the main shaft (1) passes through the bracket (4), respectively on the upper bevel gear (5) and the lower bevel gear (5) ′), the upper bevel gear (5) and the lower bevel gear (5’) mesh with the large gear (6), the left fixed handle (7) is fixed on the bracket (4), and the right handle (8) passes through the fixed buckle (9) is fixed on the large gear (6), and the support handle (10) is connected with the lower end of the bracket (4).

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