Auxiliary aiming device for billiard teaching and training

Abstract

The utility model discloses an auxiliary aiming device for billiard teaching and training. The sighting device comprises a circular base and a circular flat plate, the thickness of the circular base is 5 mm, the thickness of the circular flat plate is 5 mm, the arc surface of the lower end of the circular flat plate is tangent to the lower plane of the circular base, and the tangent points are located at the circle center of the lower plane of the circular base and the midpoint of the arc surface of the lower end of the circular flat plate respectively. The diameters of the circular base and the circular flat plate are the same as the diameter of a training billiard ball, and an aiming mark is arranged at the center of the circular flat plate. When the aiming device is used, the aiming device is firstly placed on a billiard table top and tightly attached to a target ball, so that the orientation of the circular flat plate, the target ball and the hole are located on the same straight line, and at the moment, the position of the aiming device on the billiard table is determined. According to the position of the cue ball, the direction of the circular flat plate is adjusted to be perpendicular to the connecting line between the aiming mark and the center of the cue ball under the condition that the center position of the circular base is not changed. At the moment, the outer edge of the circular flat plate observed from the cue ball direction is the outline of the hypothetical ball body, and the position where the aiming mark is located is the correct hitting point. The device can help the billiard enthusiasts to quickly improve the billiard skill.

Description

TECHNICAL FIELD

[0001] The utility model belongs to billiard apparatus technical field, especially involve a kind of auxiliary aiming device for billiard teaching training. BACKGROUND

[0002] Billiard is a high-precision sports activity, and it is the first problem for some novice enthusiasts to master accurate hitting technique. When billiard enthusiasts carry out billiard, they must determine the correct hitting point to hit target ball into pocket by cue ball, and the common method is to aim through imaginary ball. The bag opening and the center line of target ball are connected to obtain the best shooting route. The target ball is moved one ball on the best shooting route to form imaginary ball. The aiming point is the center of imaginary ball, and the running track of cue ball is located on the connecting line of the center of imaginary ball and the center of cue ball when hitting. However, when the enthusiasts find the correct hitting point (the center point of imaginary ball), they can only judge through experience or feeling, and it is often difficult for novice enthusiasts to find the correct hitting point. Therefore, some auxiliary devices for finding the center point of imaginary ball emerge as the times require, such as the utility model patent with application number 201220050156.7, which discloses a transparent ball with the same diameter as target ball as auxiliary aiming ball, and the ball art is improved by training through aiming mark at the center of aiming ball body. It is feasible to find the hitting point through mark of transparent ball, but the position relationship between aiming mark and target ball is observed to determine the center of imaginary ball. When observing the position relationship between aiming mark and target ball, the line of sight must pass through transparent ball to observe target ball, and the light is refracted after passing through transparent ball due to the curvature of transparent ball, so there is a certain deviation in finding the position relationship between hitting point and target ball. In addition, some auxiliary devices on the market are too complex, and some auxiliary devices only have aiming mark and cannot form the real outline of imaginary ball. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned deficiencies and providing an auxiliary aiming device for billiard teaching training.

[0004] The purpose of the utility model can be achieved through the following measures.

[0005] An auxiliary aiming device for billiard teaching training, which comprises a circular base and a circular plate.

[0006] Preferably, the thickness of the circular base is 5mm, and the thickness of the circular plate is 5mm. The lower end arc surface of the circular plate is tangent to the lower plane of the circular base, and the tangent points are located at the center of the lower plane of the circular base and the midpoint of the lower end arc surface of the circular plate.

[0007] Preferably, the diameter of the circular base and the circular plate is the same as the diameter of the training billiard ball, and the center of the circular plate is provided with a sighting mark.

[0008] Preferably, the circular base and the circular plate are both made of high-transparency material and have smooth outer surfaces.

[0009] In use, the aiming device is placed on the billiard table and closely contacts the target ball, so that the direction of the circular plate is in a straight line with the target ball and the hole, and the position of the aiming device on the billiard table is determined.

[0010] Compared with the prior art, the aiming device has the following beneficial effects.

[0011] 1. The aiming device has simple structure, convenient use, low cost and high value for popularization.

[0012] 2. The aiming device can quickly improve the billiard skills of the player, and can help the player accurately master the spatial position relationship among the imaginary ball, the target ball and the cue ball, and improve the aiming accuracy.

[0013] 3. Compared with the transparent spherical aiming device, the target ball is observed through the circular plate combined with the sighting mark, and the light refraction phenomenon does not occur, so the position relationship between the hitting point and the target ball can be clearly positioned.

[0014] 4. Compared with the common auxiliary device on the market, when the circular plate is adjusted to be perpendicular to the line connecting the sighting mark and the cue ball, the outline of the circular plate observed from a distance is consistent with the solid ball in the sense, and is not a single sighting mark. Therefore, the position relationship between the imaginary ball and the target ball can be more easily judged, and the player's perception and memory can be cultivated.

[0015] 5. The player can make marks on the surface of the circular plate to practice the movement of the cue ball and the target ball for different hitting points, so as to better assist the defensive practice of billiards. Since the circular plate is made of smooth and transparent material, the marks can be easily cleaned and modified. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a three-dimensional effect drawing of the aiming device.

[0017] Figure 2 This is the front view of the present utility model.

[0018] Figure 3 This is a top view of the present invention.

[0019] Figure 4 This is the left view of the present invention.

[0020] Figure 5 A schematic diagram illustrating the determination of the position of an imaginary ball using the device of this invention.

[0021] Figure 6 This is a schematic diagram showing the aiming point and the outline of the imaginary ball when using the device of this invention.

[0022] In the diagram: 1. Aiming device body, 1-1. Circular base, 1-2. Circular plate, 1-3. Aiming mark, 2. Target ball, 3. Target pocket, 4. Billiard table, 5. Circular plate projection AA' when viewed from above, center of the cue ball O, center of the circular plate O'. Detailed Implementation

[0023] like Figure 1 As shown, an auxiliary aiming device for billiards teaching and training includes an aiming device body 1, which consists of a circular base 1-1 and a circular plate 1-2. The circular base 1-1 and the circular plate 1-2 are both 5mm thick. The lower arc surface of the circular plate 1-2 is tangent to the lower plane of the circular base 1-1, with the tangency points located at the center of the lower plane of the circular base 1-1 and the midpoint of the lower arc surface of the circular plate 1-2, respectively. The diameters of the circular base 1-1 and the circular plate 1-2 are the same as the diameter of the training billiard ball. An aiming mark 1-3 is provided at the center of the circular plate 1-2. Both the circular base 1-1 and the circular plate (1-2) are made of highly transparent material with smooth outer surfaces.

[0024] When applying this technique, first determine the position of the aiming device on the table. For example... Figure 2 As shown, the aiming device of this invention is placed on the billiard table and close to the target ball, so that the orientation of the circular flat plate AA' is in a straight line with the target ball 2 and the target pocket 4. At this time, the position of the aiming device on the billiard table is determined.

[0025] Next, as Figure 3 As shown, depending on the position of the cue ball 3, while keeping the center of the circular base constant, adjust the direction of the circular plate AA' so that it is perpendicular to the line OO' connecting the center O' of the circular plate and the center O of the cue ball, i.e., AA' and OO' are perpendicular. At this time, the outer edge of the circular plate as viewed from the position of the cue ball 3 is the outline of the imaginary ball, and the position of the aiming marks 1-3 is the correct striking point of the cue ball.

Claims

1. A training aid for teaching the game of billiards comprising a sighting device body (1) characterised in that: The aiming device comprises two parts of a circular base (1-1) and a circular flat plate (1-2), the thickness of the circular base (1-1) is 5 mm, the thickness of the circular flat plate (1-2) is 5 mm, the lower end arc surface of the circular flat plate (1-2) is tangent to the lower plane of the circular base (1-1), and the tangent points are respectively located at the center of the lower plane of the circular base (1-1) and the midpoint of the lower end arc surface of the circular flat plate (1-2).

2. The auxiliary aiming device for billiards teaching and training according to claim 1, characterized in that: The diameters of the circular base (1-1) and the circular flat plate (1-2) are the same as the diameter of the training billiard.

3. The auxiliary aiming device for billiards teaching and training according to claim 1, characterized in that: The center of the circular flat plate (1-2) is provided with an aiming mark (1-3).

4. The auxiliary aiming device for billiards teaching and training according to claim 1, characterized in that: The circular base (1-1) and the circular flat plate (1-2) are both made of organic glass material with high transparency.

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