Kinetic and potential energy conversion guided arrow

Abstract

A kinetic and potential energy conversion guided arrow, comprising an arrow shaft (1), an arrowhead (2) mounted at the front portion of the arrow shaft (1), and an arrow fletching (3) mounted at the tail portion of the arrow shaft (1). The arrow shaft (1) is a hollow shaft, of which an inner cavity is provided with an energy storage device for converting kinetic energy into potential energy and then storing and transferring same. The energy storage device comprises a sliding block (5) capable of moving in the inner cavity and a compression spring (4) arranged on one side of the sliding block (5). Using the hollow arrow shaft (1) and mounting therein the energy storage device constituted by the compression spring (4) and the sliding block (5) can convert kinetic energy into elastic potential energy and then store and transfer same. In addition, adjusting the center of gravity of an arrow body improves the shooting stability of the arrow, eliminates phenomena of instability and wobbling, and also improves the shooting range and accuracy of the arrow. The cooperation of the arrowhead (2) which is a lightweight arrowhead (2) and the internal structure of the arrow shaft (1) more helps to adjust the center of gravity of the arrow body. The arrowhead (2) and the arrow fletching (3) are detachable, and are more convenient to be assembled into a whole.

Description

A type of guided rocket that converts kinetic and potential energy Technical Field

[0001] This invention relates to an arrow for crossbows, specifically a guided arrow that converts kinetic and potential energy. Background Technology

[0002] As a shooting tool, the bow and crossbow has played a vital role throughout human history. Traditional crossbows were generally made of bamboo or wood, with solid shafts, and were primarily used for hunting or warfare. However, with the development of the times, the advent of firearms gradually replaced the bow and crossbow, causing it to lose some of its original uses. Nevertheless, archery as a sport still retains considerable vitality.

[0003] Because traditional arrows are heavy and have a large length-to-diameter ratio, they inevitably become unstable after being launched by the thrust from the tail, causing the shaft to twist and turn in the air. Therefore, to improve archery performance, arrow manufacturing processes have been continuously improved. Modern arrows are generally made of carbon fiber or aluminum alloy, and various structures using solid or hollow shafts have also emerged. However, the twisting and instability problem remains quite serious, significantly impacting range and accuracy. Technical solutions

[0004] The technical problem to be solved by the present invention is to provide a kinetic and potential energy conversion guided arrow with low torsional instability, long range and high accuracy.

[0005] To solve the above-mentioned technical problems, the present invention provides a kinetic and potential energy conversion guided arrow, comprising an arrow shaft, an arrowhead installed at the front of the arrow shaft, and an arrow tail installed at the rear of the arrow shaft; the arrow shaft is a hollow shaft, and its inner cavity is provided with an energy storage device for storing and transferring kinetic energy after it has been converted into potential energy; the energy storage device includes a slider that can move in the inner cavity and a spring disposed on one side of the slider.

[0006] The energy storage device includes a compression spring disposed at the bottom of the inner cavity and a slider located at the front end of the compression spring.

[0007] The arrowhead has a slider mounting groove, and the tail of the arrow has a spring mounting groove.

[0008] The slider has a central hole.

[0009] The slider is fixedly connected to the compression spring.

[0010] The arrow shaft has an arrowhead mounting slot and an arrow tail mounting slot at both ends; the arrowhead is installed in the arrowhead mounting slot by a threaded connection, and the arrow tail is installed in the arrow tail mounting slot by a threaded connection.

[0011] The arrow shaft is provided with a fletching sleeve at the tail, and the fletching sleeve is provided with multiple fletchings evenly distributed along the circumference.

[0012] The arrow has three fletchings.

[0013] The arrow has a breech groove. Beneficial effects

[0014] The advantages of this invention are: It employs a hollow arrow shaft with an energy storage device consisting of a compression spring and a slider installed within it. This device converts kinetic energy into elastic potential energy for storage and transfer, while simultaneously adjusting the arrow's center of gravity, improving stability during firing, eliminating instability and swaying, and increasing the arrow's range and accuracy. The arrowhead is lightweight, and its internal structure facilitates adjustment of the arrow's center of gravity. The arrowhead and fletching are detachable, making assembly easier. Furthermore, the presence of slider and spring mounting slots on the arrowheads allows for greater movement of the energy storage device, a more rearward potential energy storage position, and a more forward application of kinetic energy to the arrow shaft, resulting in improved stability and accuracy. The same internal structure can also be applied to bows or crossbows, broadening its application scenarios. Attached Figure Description

[0015] Figure 1 is a front cross-sectional view of the present invention;

[0016] Figure 2 is an enlarged view of the arrow tail of the present invention;

[0017] Figure 3 is an enlarged view of the arrows in this invention. Embodiments of the present invention

[0018] The kinetic and potential energy conversion guided arrow of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] As shown in the figure, the kinetic and potential energy conversion guided arrow of the present invention includes an arrow shaft 1, a detachable arrowhead 2 installed at the front of the arrow shaft 1, and a detachable arrow tail 3 installed at the rear of the arrow shaft 1. The arrow shaft 1 is a hollow shaft with an arrowhead mounting groove 9 and an arrow tail mounting groove 10 at its two ends, respectively. The arrowhead 2 is installed in the arrowhead mounting groove 9 by a threaded connection, and the arrow tail 3 is installed in the arrow tail mounting groove 10 by a threaded connection. The arrowhead 2 is a lightweight arrowhead, and the arrow tail 3 has an arrow tail groove 13.

[0020] The hollow inner cavity of the arrow shaft is equipped with an energy storage device for storing and transferring kinetic energy after it has been converted into potential energy. The energy storage device includes a compression spring 4 located at the bottom of the inner cavity and a slider 5 located at the front end of the compression spring 4 and fixedly connected to it. The slider 5 is a cylindrical counterweight with a diameter slightly smaller than the diameter of the inner cavity of the arrow shaft. It has a central hole 8 in the center to balance the air pressure on both sides and allow the slider 5 to move smoothly in the inner cavity. The arrowhead 2 has a slider mounting groove 6 and the arrow tail 3 has a spring mounting groove 7. The diameters of the slider mounting groove 6 and the spring mounting groove 7 are the same as those of the inner cavity of the arrow shaft. In the normal state (i.e., after installation, it is placed horizontally and is in a stationary state), the slider 5 is in contact with the end face of the slider mounting groove 6 and the compression spring 4 is in contact with the end face of the spring mounting groove 7.

[0021] When used as a bow and arrow, a fletching sheath 11 can be installed at the tail of the arrow shaft 1. The fletching sheath 11 has three fletchings 12 evenly distributed around the circumference. When used as a crossbow, it is not necessary to install the fletching sheath 11.

[0022] When assembling the arrow body, first screw the arrow tail 3 into the tail of the arrow shaft 1, then put the compression spring 4 along with the slider 5 into the cavity of the arrow shaft, so that the end of the compression spring 4 extends into the spring mounting groove 7 and contacts its end face. Next, use the slider mounting groove 6 in the arrow 2 to fit onto the slider 5, and screw the arrow 2 into the front of the arrow shaft 1. If there is a need to install the fletching sleeve 11, simply fit the fletching sleeve 11 directly onto the arrow tail 3.

[0023] When the arrow is launched, slider 5 moves relatively backward in the inner cavity. The compression spring 4 is compressed by slider 5 under the action of kinetic energy, and the kinetic energy is converted into elastic potential energy. At this time, the overall center of gravity of the arrow body is shifted to the rear, which improves stability and eliminates the phenomenon of instability and torsion. After the arrow is launched, slider 5 moves relatively forward in the inner cavity under the action of elastic potential energy, which makes the overall center of gravity of the arrow body move forward and converts the elastic potential energy into kinetic energy and transfers it to the front of the arrow body. This completes the storage and transfer of kinetic and potential energy, enabling it to fly smoothly and improve its range and accuracy, thus realizing the guidance function of the arrow.

[0024] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A guided rocket that converts kinetic and potential energy, characterized in that: It includes an arrow shaft (1), an arrowhead (2) installed at the front of the arrow shaft (1), and an arrow tail (3) installed at the rear of the arrow shaft (1); the arrow shaft (1) is a hollow shaft, and its inner cavity is provided with an energy storage device for storing and transferring kinetic energy after it is converted into potential energy; the energy storage device includes a slider that can move in the inner cavity and a spring provided on one side of the slider.

2. The kinetic and potential energy conversion guided arrow according to claim 1, characterized in that: The energy storage device includes a compression spring (4) disposed at the bottom of the inner cavity and a slider (5) located at the front end of the compression spring (4).

3. The kinetic and potential energy conversion guided arrow according to claim 2, characterized in that: The arrow (2) has a slider mounting groove (6), and the arrow tail (3) has a spring mounting groove (7).

4. The kinetic and potential energy conversion guided arrow according to claim 2, characterized in that: The slider (5) has a central hole (8).

5. The kinetic and potential energy conversion guided arrow according to claim 2, characterized in that: The slider (5) is fixedly connected to the compression spring (4).

6. The kinetic and potential energy conversion guided arrow according to claim 1, characterized in that: The arrow shaft (1) has an arrowhead mounting groove (9) and an arrow tail mounting groove (10) at both ends respectively; the arrowhead (2) is installed in the arrowhead mounting groove (9) by a threaded connection, and the arrow tail (3) is installed in the arrow tail mounting groove (10) by a threaded connection.

7. The kinetic and potential energy conversion guided arrow according to any one of claims 1-6, characterized in that: The arrow shaft (1) is provided with a feather sheath (11) at the tail, and multiple feathers (12) are provided on the feather sheath (11) evenly distributed along the circumference.

8. The kinetic and potential energy conversion guided arrow according to claim 7, characterized in that: The number of arrow fletchings (12) is three.

9. The kinetic and potential energy conversion guided arrow according to claim 1, characterized in that: The arrow tail (3) has an arrow tail groove (13).

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