Billiard sighting device

Abstract

A billiard sighting device comprises a billiard table top pocket opening position laser detector, a billiard table top target ball positioning pipe and a billiard sighting point positioning plate. The billiard sighting device determines the position of a billiard sighting point on a billiard table according to the position of a pocket opening and the position of a target ball and the billiard sighting theory, and the position of the sighting point is clearly shown through the sighting point positioning marking piece. The billiard sighting device can help a billiard player to correct the sighting point and master the skill of visual inspection of the billiard sighting point, and the accuracy of playing billiards is improved.

Description

Technical Field

[0001] The present invention relates to a sports skill training device, and particularly to a billiards aiming device. Background Art

[0002] Billiards is a popular sport among the masses. In this sport, athletes use a billiards cue to hit the cue ball on the billiards table according to certain competition rules, and use the cue ball to hit the target ball so that the target ball falls into the billiards pocket at the corner of the billiards table. The athlete thus obtains points to win. During this movement process, the position of the cue ball on the table when the cue ball hits the target ball and falls into the pocket is called the billiards aiming point. As long as the athlete hits the aiming point with the cue ball, the target ball can be hit into the pocket. Therefore, finding and determining the aiming point is an essential sports skill for athletes. As long as the athlete masters this skill, the accuracy of playing the ball can be improved. In billiards, the positions of the cue ball and the target ball vary greatly, so it is very difficult for athletes to determine the aiming point by visual estimation. According to billiards theory, the position of the aiming point is on the extension line of the connection line between the pocket opening and the center of the target ball, and there is a certain rule for the distance from the center of the target ball. In daily billiards, it is very difficult to accurately determine the position of the aiming point by visual estimation: Athletes first need to set a virtual straight line connecting the billiards pocket opening and the center of the target ball in their minds, and then extend this virtual straight line by a length of twice the radius of the target ball. At this time, the end point of the straight line is the aiming point. Accurately determining the position of the aiming point requires athletes to have strong spatial imagination and precise calculation ability, which is not easy for ordinary people to do. Usually, experienced athletes determine the aiming point based on experience and intuition. Summary of the Invention

[0003] To solve the problem of difficult determination of the aiming point in billiards, the present invention proposes a billiards aiming device. The function of the billiards aiming device is to quickly and accurately determine the position of the aiming point and make a mark, helping athletes master the skill of determining the aiming point by visual estimation and improving the accuracy of playing the ball. The structure of the billiards aiming device includes three parts: 1. A laser detector for the position of the pocket on the billiards table; 2. A target ball positioning tube on the billiards table; 3. A billiards aiming point positioning plate. These three parts form a whole, and the structural external view is shown in the appendix Figure 1 . A laser detector is installed on the cover plate of the target ball positioning tube to detect the position of the pocket on the table. The lower port of the target ball positioning tube is sleeved outside the target ball to lock the position of the target ball. The outer side of the lower end of the target ball positioning tube is connected to the aiming point positioning plate, and the orientation of the positioning plate is opposite to the direction of the laser ray. There is an aiming point positioning hole on the aiming point positioning plate, and the center of the hole is 58 mm away from the center of the lower port of the target ball positioning tube, which is equal to twice the radius of the Chinese billiards target ball. The position of the positioning hole is the position of the aiming point, which is clearly indicated by a white aiming point positioning marker piece. The diameter of the aiming point positioning hole is 10 mm, and the center of the positioning hole and the laser ray of the laser detector are in the same plane perpendicular to the ground.

[0004] The beneficial effects of the present invention are as follows:

[0005] The aiming point positioning accuracy of the billiards sight is higher than the positioning accuracy of manual visual estimation by ordinary athletes. The billiards sight can be used as a training device to improve billiards skills, helping athletes master the skill of visually estimating the aiming point of billiards, accurately determining and correcting the aiming point of billiards, and improving the hitting accuracy of athletes. The billiards sight can also increase the entertainment of billiards, help novice players learn to play billiards, and attract more people to participate in billiards. Description of the Drawings

[0006] Figure 1 It is a schematic diagram of the external structure of the billiards sight in an embodiment of the present invention.

[0007] Figure 2 It is a schematic top view of the structure of the billiards sight in an embodiment of the present invention.

[0008] Figure 3 It is a schematic diagram of the aiming point positioning plate and the positioning marker sheet of the billiards sight in an embodiment of the present invention.

[0009] Figure 4 It is a schematic diagram of the usage method of the billiards sight in an embodiment of the present invention.

[0010] Description of the Reference Numerals

[0011] 1. Laser detector for the pocket of the billiards table; 2. Target ball positioning tube; 3. Aiming point positioning plate; 4. Aiming point positioning hole; 5. Aiming point positioning marker sheet; 6. Circular cover plate at the upper end of the target ball positioning tube; 7. Pocket of the billiards table; 8. Billiards sight; 9. Target ball; 10. Cue ball; 11. Billiard cue; 12. Billiards table. Detailed Embodiment

[0012] The following further describes the present invention in detail with reference to the drawings and embodiments.

[0013] Refer to the attached Figures 1 to 4 , which exemplarily shows the main structure of the billiards sight proposed by the present invention.

[0014] Refer to the attached Figure 1 The billiards sight consists of three parts: a laser detector for the pocket of the billiards table, a target ball positioning tube, and an aiming point positioning plate.

[0015] Refer to the attached Figure 2, The production material of the billiards aiming device is galvanized sheet, and the plate thickness δ = 1 mm. The laser detector for the pocket of the billiards table is installed at the center of the circular cover plate at the upper port of the target ball positioning tube. The laser ray emitted by the laser detector shoots forward along the radius direction of the cover plate, and the direction of the laser ray is opposite to the orientation of the aiming point positioning plate. The laser ray and the center of the aiming point positioning hole are in the same plane perpendicular to the ground. The upper port of the target ball positioning tube is closed by a circular cover plate 6, and the lower port is open. The height H of the target ball positioning tube is 65 mm, and the inner diameter D1 is 63 mm, which can be sleeved outside the target ball with a diameter of 58 mm. There is a layer of flannelette lined inside the target ball positioning tube to prevent the target ball inside the tube mouth from shaking and being worn. The outer side of the lower port of the target ball positioning tube is connected with an aiming point positioning plate.

[0016] Refer to the appendix Figure 3 , The length L2 of the aiming point positioning plate is 40 mm, the width L3 is 30 mm, the distance L4 from the center of the positioning hole to the outer wall of the lower port of the target ball positioning tube is 26 mm. The diameter D2 of the aiming point positioning hole is 10 mm. The white positioning marker piece with a diameter of 10 mm is stuck in the positioning hole, and the distance L1 from the center of the aiming point positioning hole to the center of the lower port of the positioning tube is 58 mm.

[0017] The using method of the present invention: The using method of the billiards aiming device is shown in the appendix Figure 4 . First, sleeve the target ball positioning tube of the billiards aiming device outside the target ball on the billiards table. Keep the position of the target ball unchanged. Rotate the billiards aiming device in place with the target ball positioning tube as the center, and irradiate the laser ray emitted by the laser detector to the center of the billiards pocket. Keep the aiming device still, push the white positioning marker piece in the aiming point positioning hole on the bottom plate downward so that the marker piece falls on the billiards table. Then remove the billiards aiming device, and the position of the white positioning marker piece left on the table is the billiards aiming point. The athlete hits the cue ball to the white positioning marker piece, and the target ball can be hit into the billiards pocket. By using the billiards aiming device, the athlete can correct the deviation of the aiming point visually estimated by himself and improve the skill of visually judging the aiming point.

[0018] The design concept of the billiards aiming device of the present invention is: In the theory of billiards movement, there is a billiards aiming method called "finding the tail". The meaning of this method is: The position of the billiards aiming point is on the connection line between the target ball and the pocket, and the distance between the billiards aiming point and the center of the target ball is twice the radius of the target ball. Specifically in Chinese billiards, the distance L1 between the billiards aiming point and the center of the target ball is 58 mm. The billiards aiming device of the present invention is a brand-new billiards movement training device developed by combining the theory of billiards movement with the practice of billiards movement.

[0019] The present invention has the characteristics of simple and practical, low cost, wide application prospect, and can be used as a training device for athletes.

[0020] The above is the preferred embodiment of the present invention and the technical principles applied thereto. For those skilled in the art, any obvious changes such as equivalent transformations and simple substitutions based on the technical solution of the present invention without departing from the spirit and scope of the present invention shall fall within the protection scope of the present invention.

Claims

1. A billiards sight, characterized in that: The billiard table pocket position laser detector comprises a billiard table target ball positioning tube and a billiard aiming point positioning plate. The aiming point position is inferred according to the detected pocket position and target ball position, and then displayed by an aiming point positioning marker sheet.

2. The billiard ball sight according to claim 1, characterized in that: The billiard table pocket position laser detector is characterized by being installed at the center of the circular cover plate at the upper port of the target ball positioning tube, the laser irradiation direction is forward along the radius direction of the circular cover plate, and the laser ray direction is opposite to the direction of the aiming point positioning plate. The laser ray and the center of the aiming point positioning hole are in the same plane perpendicular to the ground.

3. The billiard ball sight according to claim 1, characterized in that: The desktop target ball positioning tube is characterized in that the upper end of the target ball positioning tube is closed by a circular cover plate, the lower end of the target ball positioning tube is open, and the inner diameter of the target ball positioning tube is larger than the diameter of the target ball.

4. The billiard ball sight according to claim 1, characterized in that: The billiard aiming point positioning plate is characterized in that: the positioning plate is provided with an aiming point positioning hole with a diameter of 10 mm, and a white circular positioning marking piece is installed in the positioning hole.

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