CN109991034A - A rechargeable electric drill for tree sampling - Google Patents

Abstract

The invention discloses a rechargeable electric drill for tree sampling, which comprises a rechargeable electric drill. The front end of the electric drill is provided with a drill pipe fixing fixture, the middle is a motor rotor, the top is provided with a speed regulator, and the side walls are respectively provided with The power switch, the drill-in switch and the drill-out switch have a rechargeable battery inside the bottom end, a bubble level on the top surface of the tail end of the electric drill, and a detachable drill pipe is movably connected to the front end of the electric drill. By adding an electric device, the drill pipe can be drilled into the tree body conveniently and accurately, and the core of the tree can be easily taken out. The addition of a bubble level enables the growth cone drill pipe to remain horizontal during core coring. At the same time, there are scales on both sides of the drill pipe, so that the operator can easily grasp the drilling depth. The drilling rig can output two speeds under the control of the speed regulator, which is suitable for drilling hard tree cores and soft tree cores. The drill-retract switch is added to make the motor rotor reverse, and it is convenient to take out the tree core, which has a good use effect.

Description

A rechargeable electric drill for tree sampling

technical field

The invention relates to an electric drill, in particular to a rechargeable electric drill used for tree sampling, belonging to the technical field of scientific research tools of forestry and forest ecology.

Background technique

Forestry and dendrochronological studies often require surveying and sampling of trees, and tree growth cones are small and lightweight, and can determine the growth rate of trees by drilling tree cores without affecting the normal growth of trees. , tree age, and tree growth information such as sapwood and core material thickness have become widely used sampling and measurement tools in the forestry industry.

At present, the most commonly used tree growth cone is the Swedish Haglof growth cone, which is widely used due to the high quality of carbon steel and easy portability. However, there are many problems in the actual use in the field: (1) tree drilling requires strong rotation The handle of the growth cone is time-consuming and labor-intensive; (2) Although it is equipped with a special core puller, it is still difficult to extract the core, and the core is easily broken during the extraction process; (3) This type of growth cone has no scale and cannot be drilled into control. The depth of the tree; (4) During the process of drilling the core, it cannot be ensured that the growth cone is kept perpendicular to the tree, which affects the quality of the sample.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is: to provide a rechargeable electric drill for tree sampling, which overcomes the technical defects of traditional growth cones, so that the growth cones are kept perpendicular to the trees during the process of drilling the tree core, and the drilling can be accurately controlled. The depth of penetration, the adjustment of the rotational speed for tree species with different hardness, and the effective reduction of labor intensity, can easily obtain effective sample cores, save time and manpower, and effectively solve the above problems.

The technical scheme of the present invention is as follows: a rechargeable electric drill for tree sampling, which includes a rechargeable electric drill, the front end of the electric drill is provided with a drill pipe fixing fixture, the middle is a motor rotor, the top has a speed regulator, and the side is provided with a speed regulator. The wall is provided with a power switch, a drill-in switch and a drill-out switch respectively, a rechargeable battery is located inside the bottom end, and a bubble level is also provided on the top surface of the rear end of the electric drill. Detachable drill pipe.

The shaft of the drill rod is a cylindrical rod-shaped structure, with a circular through hole in the middle of the drill rod, a square joint at one end of the drill rod, and a screw on the outer surface of the other end. There are two symmetrical scales on the surface.

The inner diameter of the through hole is 4.35 mm and 5.15 mm.

The helix is a two-thread screw structure.

The beneficial effects of the present invention are: compared with the prior art, by using the technical scheme of the present invention, by adding an electric device, the drill pipe can be drilled into the tree body conveniently and accurately, and the core of the tree can be easily taken out. The bubble level is added in the invention so that the growth cone drill pipe can be kept horizontal when the core is rotated, that is, it is kept vertical to the tree body. The drilling rig of the present invention can output two speeds under the control of the rotational speed regulator, that is, the first gear is low speed and high torque, which is suitable for drilling hard tree cores, and the second gear is high speed and low torque, which is suitable for drilling soft tree cores. In the present invention, a drill-retracting switch is added, so that the rotor of the motor is reversed, the tree core can be easily taken out, and a good use effect is achieved.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is drill pipe structure schematic diagram 1 of the present invention;

Fig. 3 is the second schematic diagram of the drill pipe structure of the present invention;

FIG. 4 is a schematic structural diagram of the charging device of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings of the present specification.

Embodiment 1: As shown in Figures 1 to 4, a rechargeable electric drill for tree sampling includes a rechargeable electric drill 6, the front end of the electric drill 6 is provided with a drill pipe fixing fixture 2, and a motor is in the middle. The rotor 4 has a rotational speed regulator 3 at the top, a power switch 7, a drill-in switch 8 and a drill-retract switch 9 on the side walls, a rechargeable battery 10 inside the bottom end, and a rear end top surface of the electric drill 6. There is a bubble level 5, and a detachable drill pipe 1 is movably connected to the front end of the electric drill 6 through a drill pipe fixing fixture 2.

Further, the body of the drill rod 1 is a cylindrical rod-shaped structure, with a circular through hole 24 in the middle of the drill rod 1, a square joint 23 at one end of the drill rod 1, and a screw 21 on the outer surface of the other end. , the outer surface of the shaft of the drill pipe 1 is provided with two symmetrical scales 22 . It is convenient for the operator to clearly grasp the drilling depth.

Further, the inner diameter of the through hole 24 has two specifications of 4.35 mm and 5.15 mm.

Further, the screw 21 is a two-thread screw structure.

Further, the device is also provided with a charging device, which includes an external charger 11 and a battery charger 12. FIG. 4 is a schematic diagram of the charging device according to the embodiment of the present invention. One end of the external charger 11 can be connected to the external power source and the other end can be inserted into the drill rig handle. The bottom is directly powered; the battery charger 12 is composed of a front battery slot 12-1 and a rear foldable plug 12-2.

The charging device includes an external charger 11 and a battery charger 12 . Fully charge the lithium battery in the battery charger before field work; when it is close to the external power source or has a large-capacity mobile power supply device, it can be connected to it through an external charger to drive the growth cone to work.

Further, there are two scales 22, which are symmetrically distributed on the outer surface of the drill rod 1; the drill rod 1 is fixedly connected to the motor rotor 4 through the drill rod fixing fixture 2; the motor rotor 4 is powered by the rechargeable battery 10; The motor rotor 4 is connected with the rotational speed regulator 3; the bubble level 5 is placed on the top of the rear of the drilling rig; the rechargeable battery 10 is placed at the bottom of the drilling rig body, and can be taken out for charging or directly powered by an external power supply; the power supply The switch 7, the drill-in switch 8 and the drill-out switch 9 are distributed on the handle part of the drill body.

The length of the drill pipe 1 has different specifications of 100-800 mm, and the inner diameter of the drill pipe 1 has two specifications of 4.35 mm and 5.15 mm. In this embodiment, the length of the drill rod 1 is 200mm.

Further, the battery 10 is a 12V, 5000 mAh rechargeable lithium battery equipped with an independent charger.

The drill rod 1 is connected with the motor rotor 4 through the drill rod fixing clip 2, the speed regulator 3 is engaged with the motor rotor 4; the bubble level 5 is placed on the top of the rear of the drilling rig 6; the power switch 7, the drilling switch 8, the drilling withdrawal switch 9 On the handle part of the drill; the rechargeable battery 10 is placed on the bottom of the handle of the drill.

The speed regulator 3 can adjust the motor speed in two gears, and it is a low-speed and high-torque mode when it is turned backward, which is suitable for drilling hard tree cores. Quality tree core.

1. Drilling of the eucalyptus core:

Eucalyptus wood is hard, select 1st gear low-speed high-torque mode. Before drilling the tree core in the field, fully charge the lithium battery, then put the battery and a drill pipe of suitable length into the drilling rig, turn on the main power switch, press the drill bit against the eucalyptus bark, and adjust the drilling rig until the bubbles in the bubble level are centered. , press the drill-in switch, the drill pipe rotates gradually into the tree body, the operator pays attention to the drill pipe scale in real time, and when the drill pipe is drilled into the tree body by half the diameter at breast height, release the drill-in switch, press the drill-out switch, and drill The rod starts to rotate in the opposite direction. After the drill rod exits the tree, turn off the main power switch, remove the drill rod and take out the tree core.

2. Drilling of the silver poplar core:

Silver poplar wood is light and soft, select 2-speed high-speed low-torque mode. Before drilling the tree core in the field, fully charge the lithium battery, then put the battery and a drill pipe of suitable length into the drill, turn on the main power switch, put the drill bit against the bark of the silver poplar, and adjust the drill until the bubbles in the bubble level are centered. Then, press the drill-in switch, and the drill pipe rotates gradually into the tree. The operator pays attention to the drill-pipe scale in real time. When the drill pipe is drilled into the half of the tree body diameter at breast height, release the drill-in switch and press the back-drill switch. The drill pipe starts to rotate in the opposite direction. After the drill pipe exits the tree, turn off the main power switch, remove the drill pipe and take out the tree core.

By adding an electric device, the drill pipe can be drilled into the tree body conveniently and accurately, and the core of the tree can be easily taken out. The bubble level is added in the invention so that the growth cone drill pipe can be kept horizontal when the core is rotated, that is, it is kept vertical to the tree body. The drilling rig of the present invention can output two speeds under the control of the rotational speed regulator, that is, the first gear is low speed and high torque, which is suitable for drilling hard tree cores, and the second gear is high speed and low torque, which is suitable for drilling soft tree cores. In the present invention, a drill-retracting switch is added, so that the rotor of the motor is reversed, the tree core can be easily taken out, and a good use effect is achieved.

The parts that are not described in detail in the present invention are the well-known technologies of those skilled in the art. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims (4)

1. a kind of rechargeable type electric drill for trees sampling, it includes chargeable electric drill (6), the front end of the electric drill (6) Equipped with drilling rod stationary fixture (2), centre is rotor (4), and top has speed regulator (3), is respectively equipped with power supply on side wall Switch (7) switchs (8) into brill and moves back brill switch (9), and bottom inner portion has rechargeable battery (10), it is characterised in that: in electric drill (6) it is additionally provided with air-bubble level (5) on tail end top surface, is flexibly connected in the front end of electric drill (6) by drilling rod stationary fixture (2) There is dismountable drilling rod (1).

2. the rechargeable type electric drill according to claim 1 for trees sampling, it is characterised in that: the drilling rod (1) Shaft is cylinder rod-like structure, has the through-hole (24) of round shape in the centre of drilling rod (1), is rectangular connect in one end of drilling rod (1) Head (23), other end outer surface are equipped with spiral (21), and the shaft outer surface of drilling rod (1) is equipped with symmetrical two graduated scales (22).

3. the rechargeable type electric drill according to claim 2 for trees sampling, it is characterised in that: the through-hole (24) Internal diameter is two kinds of specifications of 4.35 mm and 5.15 mm.

4. the rechargeable type electric drill according to claim 2 for trees sampling, it is characterised in that: the spiral (21) is Two line screw-type structures.