CN204522236U - A kind of billiards exerciser - Google Patents

A kind of billiards exerciser Download PDF

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Publication number
CN204522236U
CN204522236U CN201520173760.2U CN201520173760U CN204522236U CN 204522236 U CN204522236 U CN 204522236U CN 201520173760 U CN201520173760 U CN 201520173760U CN 204522236 U CN204522236 U CN 204522236U
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China
Prior art keywords
ball
light source
ball groove
axis
billiards
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Expired - Fee Related
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CN201520173760.2U
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Chinese (zh)
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王智博
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Individual
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Individual
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Abstract

The utility model discloses a kind of billiards exerciser, comprise base, Sphere orientation parts are provided with on the right side of base, Sphere orientation parts have Sphere orientation fixed structure, the transverse direction left side of Sphere orientation parts is provided with club positioning element, and club positioning element is located at the both sides, axis in Sphere orientation component level direction; Sphere orientation fixed structure is ball groove or two poles of stretching to the billiard ball centre of sphere, the longitudinal both sides of ball groove arrange aiming light source respectively, two are aimed at the horizontal median axis symmetry of light source relative to ball groove, the spacing of its light beam equal ball groove the diameter of fixing billiard ball, be provided with directly over ball groove and aim at light source B, club positioning element comprises the extension being located at chassis left side, and the left side of extension is provided with elongated strap.The utility model can supplemental training person carry out batting and aiming exercise, improves place hitting point, run-home ball and controls the technical ability of mother bulb positioning, improve the rate of goals of practitioner, make trainer grasp billiard ball skill fast, easily know from experience the enjoyment of billiard movement.

Description

A kind of billiards exerciser
Technical field
The utility model belongs to athletic training technical field of tools, is specifically related to a kind of billiards exerciser.
Background technology
Billiard ball are one pandemic indoor sport in the world, use club to bat on platform, rely on to calculate the score and determine the indoor amusement sports items of decision of a game.Along with the raising of living standards of the people, billiard movement is more and more subject to liking of compatriots.Billiards lovers wants to accomplish fluently billiard ball, needs to be grasped the accuracy of batting, want simultaneously run-home ball control well mother bulb trend, the ball that just can hit the mark improve rate of goals.But the grasp of these abilities needs long-term exercise and continuous empirical cumulative, and for beginner by traditional teaching and training, accuracy and the run-home ball that will grasp batting are at short notice very difficult.At present, the training aids lacking a kind of auxiliary billiard ball batting on the market and aiming drill, can make trainer grasp the skill of batting and run-home ball fast, know from experience the enjoyment of billiard movement.
Utility model content
Problem to be solved in the utility model is: provide a kind of billiards exerciser, this billiards exerciser supplemental training person can carry out practice stroke, aiming exercise, place hitting point, run-home ball and controls mother bulb trend, improve the rate of goals of trainer, make trainer grasp billiard ball technical ability fast.
For achieving the above object, the utility model provides a kind of billiards exerciser, comprise base, Sphere orientation parts are provided with on the right side of described base, described Sphere orientation parts have Sphere orientation fixed structure, the transverse direction left side of Sphere orientation parts is provided with club positioning element, and described club positioning element is located at the both sides, axis in Sphere orientation component level direction.
Described Sphere orientation fixed structure is ball groove, and described ball groove has opening to the right, and ball groove right side is positioned at the left side of the vertical centre axial plane of required fixing billiard ball.The longitudinal both sides of described ball groove arrange aiming light source respectively, two are aimed at the horizontal median axis symmetry of light source relative to ball groove, described aiming light source transmitted beam to the right, the optical axis of described aiming light beam of light source is parallel with the horizontal median axis of ball groove, and the spacing of described two described aiming source emissioning light bundles equals the diameter of the required fixing billiard ball of ball groove.Compared to the aiming of estimating by straight line, two are aimed at light sources and can better locate run-home ball, control mother bulb trend.The optical axis spacing of preferred two aiming light beam of light source equals the diameter of the required fixing billiard ball spheroid of ball groove.Can determine further to facilitate run-home ball by the movement locus that mother bulb and object ball collide.
Described Sphere orientation fixed structure also can be made up of two poles of stretching to the required fixing billiard ball centre of sphere, two poles are symmetricly set on the both sides, axis of the horizontal direction of required fixing billiard ball, one end of described pole is fixed on base, the sphere-contact of the other end and required fixing billiard ball.
During use, ball groove or two poles and mother bulb are fitted, rotate this billiards exerciser and run-home ball, club is through club positioning element impact mother bulb, and mother bulb rolls forward can meet the colliding part of object ball.The mother bulb centre of sphere, club positioning element horizontal center line axis are all in same perpendicular with the axis of ball groove horizontal direction, can better run-home ball; The striking point on the ball of club at square stance, easier can control on the perpendicular of mother bulb horizontal median axis by club positioning element, facilitates trainer to aim at mother bulb meta, a high position and low level and carries out batting training, better control the trend of mother bulb.
Be provided with directly over described ball groove and aim at light source B, described aiming light source B both sides are provided with longitudinal rotating shaft, rotating shaft is fixed on frame upper, the optical axis of described aiming light source B light beam is positioned at the axis vertical direction of ball groove horizontal direction, described aiming light source B can vertical rotating around the shaft, described support is hinged on base, and the height of support is 60 ~ 200mm.Aim at light source B and location light directly can be projected direct localizing objects ball on object ball, aiming at light source B can rotate around the axis, and can adjust the position of ray cast flexibly, better localizing objects ball.Preferably, the height of described support is 80mm.Support is articulated with on base, can sway, and is folded to left part and the right part of base, convenient for collecting, can regulate the position relationship of aiming light source B on support and mother bulb as required, conveniently aim at location.
Described aiming light source or aiming light source B are generating laser.The laser that generating laser sends is propagated along single direction, and collimation is good, facilitates run-home ball, can the rum point of more accurate localizing objects ball position and mother bulb and object ball.
Described club positioning element comprises the extension that level is located at chassis left side, described extension is provided with two chutes in the axis bilateral symmetry in water direction, two chutes and the axis parallel of extension in water direction, vertical location-plate is provided with in chute, described location-plate longitudinal pitch is 15 ~ 30mm, location-plate height is 40 ~ 100mm, and the horizontal length of described extension is 30 ~ 150mm.Preferably, the longitudinal pitch between described location-plate is 18mm, and the height of location-plate is 60mm, and the horizontal length of described extension is 50mm.Adopt sliding groove structure integrated positioning plate and extension, both dismountings, assembling and storage can be facilitated to carry, the location-plate of flexible adapted different structure, and the replacing after location-plate damage.Arranging extension can facilitate trainer to control the direction of motion of club, finds striking point on the ball accurately.The meta of extension horizontal median axis and the mother bulb centre of sphere, mother bulb coexists on a perpendicular, trainer controls club and to move along extension axis meta, low spot and the high some place sphere that successfully can hit mother bulb, better control club, improve the accuracy of batting, simultaneous training person the horizontal median axis of extension can control the rotating direction of mother bulb as object of reference, run-home ball.
Further, the thickness of described base and extension is 2 ~ 5mm.Base and extension thinner thickness, be convenient to club impact mother bulb bottom time, base or extension can not keep off and hinder batting, more convenient practice stroke.
Can also mark by rational height on described location-plate, the number of altitude equals the required radius of locating billiard ball of base to the vertical distance of base end face.Facilitate trainer to locate the meta of mother bulb, also for impact mother bulb is high-order and low level provides effective reference, the accuracy of trainer's batting can be improved.
Be provided with flexible elongated strap on the left of described extension, the axis of described elongated strap overlaps with ball groove axis in the horizontal direction.Elongated strap the direction of motion that convenient trainer controls club is set, find striking point on the ball accurately.Elongated strap increases extension horizontal median axis, and the locating effect as object of reference run-home ball is better, and elongated strap is arranged to flexible easily storage, can adapt to placement condition flexibly, still can use at ball table marginal position.
The axis of described elongated strap is provided with mark, and the width of described elongated strap is 15 ~ 30mm, and the length of described elongated strap is 100 ~ 500mm.
The beneficial effects of the utility model:
1, the utility model supplemental training person can carry out practice stroke and aiming exercise, supplemental training person's place hitting point, run-home ball control mother bulb trend, improve the rate of goals of trainer, make trainer grasp billiard ball skill fast, easily know from experience the enjoyment of billiard movement.
2, when the ball groove of Sphere orientation device or pole and mother bulb fit, the mother bulb centre of sphere, club positioning element horizontal center line axis are all in same perpendicular with the axis of ball groove horizontal direction, axis along club positioning element horizontal direction is aimed at, can run-home ball more accurately.At square stance, better control the trend of mother bulb, carry out the impact of the meta of mother bulb, a high position and low level and training of scoring.Club positioning element comprises extension, extension is provided with chute location-plate, location-plate vertical space can limit the activity of club, the movement locus of club is limited on perpendicular, the plane at the centre of sphere place of the mother bulb that this perpendicular fixes by ball groove, this design can make trainer better can hit the meta of mother bulb, a high position and low level at square stance, better run-home ball.Utilize location-plate also can carry out auxiliary positioning simultaneously.Adopt sliding groove structure integrated positioning plate and extension, both dismountings, assembling and storage can be facilitated to carry, the location-plate of flexible adapted different structure, and the replacing after location-plate damage.Arranging extension can facilitate trainer to control the direction of motion of club, finds striking point on the ball accurately.The meta of extension horizontal median axis and the mother bulb centre of sphere, mother bulb coexists on a perpendicular, trainer controls club and to move along extension axis meta, low spot and the high some place sphere that successfully can hit mother bulb, better control club, improve the accuracy of batting, simultaneous training person the horizontal median axis of extension can control the rotating direction of mother bulb as object of reference, run-home ball.Elongated strap the direction of motion that convenient trainer controls club is set, find striking point on the ball accurately.Elongated strap increases extension horizontal median axis, and the locating effect as object of reference run-home ball is better, and elongated strap is arranged to flexible easily storage, can adapt to placement condition flexibly, still can use at ball table marginal position.
3, two of being provided with in the longitudinal both sides of ball groove aim at light sources, and aim at compared to by range estimation, two are aimed at light sources and can better locate run-home ball, control the trend of mother bulb.Two aim at the spacing of light sources equal ball groove the diameter of billiard ball fixed, the spacing of the optical axis of its light beam equals the diameter of object ball just, can determine the movement locus that mother bulb and object ball collide further, facilitate run-home ball.
4, be provided with the aiming light source B for locating run-home ball directly over ball groove, location light directly can be projected on object ball and directly locate, aiming at light source B can rotate around the axis, convenient adjustment ray cast position, better localizing objects ball.Adopt generating laser as aiming light source or aim at light source B, can send and propagate the good laser beam of collimation along single direction, accurate localizing objects ball position, better run-home ball, and then the rum point of more accurate control objectives ball and mother bulb.The fixing shaft support that turns aiming at light source B is articulated with on base, can sway, be folded to left part and the right part of base, convenient for collecting, can regulate the position relationship of aiming light source B on support and mother bulb as required, conveniently aim at location.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Number in the figure: 1, base, 2, ball groove, 3, aim at light source, 4, location-plate, 5, extension, 6, elongated strap, 7, aim at light source B, 8, support, 9, rotating shaft, 10, chute.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
As shown in Figure 1, a kind of billiards exerciser, be made up of stainless steel material, comprise the base 1 that thickness is 2mm, the both lateral sides of base 1 arranges Sphere orientation parts and club positioning element, and Sphere orientation parts comprise ball groove 2, ball groove 2 is part bowl structure, ball groove 2 has opening to the right, and club positioning element is arranged on the left of ball groove 2, and club positioning element is symmetrical relative to the perpendicular at ball groove 2 place, axis in the horizontal direction; Club positioning element comprises the extension 5 with base 1 uniform thickness, extension 5 is provided with two chutes 10 in the axis bilateral symmetry in water direction, two chutes 10 and the axis parallel of extension 5 in water direction, location-plate 4 is vertically provided with in chute 10, level interval between location-plate 4 is 18mm, the height of location-plate 4 is 60mm, and extension 5 horizontal length is 30mm.
In use, ball groove 1 and mother bulb fit the present embodiment, the centre of sphere of mother bulb, impact meta, a high position and low level all with the axis of club positioning element horizontal direction at same perpendicular.Extension 5 is arranged chute 10, install location-plate 4 in chute 10, the space of location-plate 4 can limit club and rock, and plays the effect of auxiliary positioning.The movement locus of club is limited in less vertical space by two location-plates 4, and this design can make trainer better can hit the meta of mother bulb, a high position and low level at square stance, better run-home ball.Location-plate 4 and extension 5 are demountable structure, easy to use, carry and change, and also can the location-plate 4 of adapted different structure use.Extension 5 the direction of motion that convenient trainer controls club is set, find striking point on the ball accurately.Simultaneous training person can using the axis of extension 5 as object of reference run-home ball.
Embodiment 2
As shown in Figure 1, a kind of billiards exerciser, for stainless steel, comprise base 1, base 1 thickness is 4mm, and the right side of described base 1 and left side are respectively arranged with Sphere orientation parts and club positioning element, described Sphere orientation parts comprise ball groove 2, described ball groove 2 be with billiard ball spheroid bottom the ball recess that matches, described club positioning element is arranged on the left of ball groove 2, and described club positioning element is symmetrical relative to the perpendicular at ball groove 2 place, axis in the horizontal direction; Described club positioning element comprises the flexible elongated strap 6 of the left bottom being arranged at base 1, and the axis of described flexible elongated strap 6 overlaps with ball groove 2 axis in the horizontal direction; The axis of described flexible elongated strap 6 is provided with mark, and the bandwidth of described elongated strap 6 is 18mm, and described elongated strap 6 belt length is 300mm.
On the basis using and act on embodiment 1 of the billiards exerciser in embodiment 2, add the mark in elongated strap 6, this mark can be used as the path of motion reference with bar, plays the effect of correcting and indicating, and is conducive to the linearity and the feel that improve trainer's bar.
Embodiment 3
As shown in Figure 1, a kind of billiards exerciser, for acrylic material, comprise base 1, base 1 thickness is 5mm, the right side of described base 1 and left side are respectively arranged with Sphere orientation parts and club positioning element, described Sphere orientation parts comprise ball groove 2, described ball groove 2 be with billiard ball spheroid bottom the ball recess that matches, described Sphere orientation parts also comprise two the aiming light sources being arranged at the longitudinal both sides of ball groove 2, two are aimed at light source 3 relative to ball groove 2 axis symmetry in the horizontal direction, described aiming light source 3 is to transmitted beam on the right side of ball groove 2, the optical axis of described light beam and ball groove 2 axis parallel in the horizontal direction, the spacing of two described aiming light sources 3 equals the diameter of the required fixing billiard ball spheroid of ball groove 2, described club positioning element is arranged on the left of ball groove 2, described club positioning element is symmetrical relative to the perpendicular at ball groove 2 place, axis in the horizontal direction, described club positioning element comprise to extend on the left of base 1 and with the extension 5 of base 1 uniform thickness, described extension 5 is provided with two chutes 10 in the axis bilateral symmetry in water direction, the slideway of two chutes 10 and the axis parallel of extension 5 in water direction, location-plate 4 is plugged with respectively in chute 10, level interval between described location-plate 4 is 15mm, the height of location-plate 4 is 40mm, and described extension 5 is 30mm from the horizontal length that base 1 edge extends, described club positioning element also comprises the flexible elongated strap 6 of the left bottom being arranged at base 1, the axis of described flexible elongated strap 6 overlaps with ball groove 2 axis in the horizontal direction, the axis of described flexible elongated strap 6 is provided with mark, the bandwidth of described elongated strap 6 is equal with the level interval between location-plate 4, and described elongated strap 6 belt length is 100mm.
Billiards exerciser in embodiment 3 is on the basis of embodiment 2, add two the aiming light sources 3 arranged in the longitudinal bilateral symmetry of ball groove, compared to range estimation by the aiming of straight line, two what aim at light sources 3 is arrange can better locate run-home ball, controls the trend of mother bulb.When two aim at the spacing of light sources equal ball groove the diameter of billiard ball fix, the spacing between the optical axis of the light beam that aiming light source 3 sends equals the diameter of object ball just, can determine mother bulb and the object ball point of impingement further, facilitate run-home ball.
Embodiment 4
As shown in Figure 1, a kind of billiards exerciser, for stainless steel, comprise base 1, base 1 thickness is 3mm, the right side of described base 1 and left side are respectively arranged with Sphere orientation parts and club positioning element, described Sphere orientation parts comprise ball groove 2, described ball groove 2 be with billiard ball spheroid bottom the ball recess that matches, described Sphere orientation parts also comprise of being arranged at directly over ball groove 2 and aim at light source B7, described aiming light source B7 is connected with support 8 by the rotating shaft 9 of support 8 central authorities, optical axis and ball groove 2 axis in the horizontal direction of aiming at the light beam that light source B7 launches are positioned at same plane, described aiming light source B7 can around the shaft 9 at this rotation with in surface, the height of described support 8 is 60mm, described club positioning element is arranged on the left of ball groove 2, and described club positioning element is symmetrical relative to the perpendicular at ball groove 2 place, axis in the horizontal direction, described club positioning element comprise to extend on the left of base 1 and with the extension 5 of base 1 uniform thickness, described extension 5 is provided with two chutes 10 in the axis bilateral symmetry in water direction, the slideway of two chutes 10 and the axis parallel of extension 5 in water direction, location-plate 4 is plugged with respectively in chute 10, level interval between described location-plate 4 is 30mm, the height of location-plate 4 is 120mm, and described extension 5 is 150mm from the horizontal length that base 1 edge extends.
Embodiment 4 is on the basis of embodiment 3, being provided with the aiming light source B7 for locating run-home ball directly over ball groove, location light directly can being projected on object ball and directly locating, aiming at light source B7 can 9 rotate around the shaft, convenient adjustment ray cast position, better localizing objects ball.Adopt generating laser as aiming light source 3 or aim at light source B7, can send and propagate the good laser beam of collimation along single direction, accurate localizing objects ball position, better run-home ball, and then the rum point of more accurate control objectives ball and mother bulb.
Embodiment 5
As shown in Figure 1, a kind of billiards exerciser, for transparent acrylic material, comprise base 1, base 1 thickness is 5mm, the right side of described base 1 and left side are respectively arranged with Sphere orientation parts and club positioning element, described Sphere orientation parts comprise ball groove 2, described ball groove 2 be with billiard ball spheroid bottom the ball recess that matches, described Sphere orientation parts also comprise two the aiming light sources being arranged at the longitudinal both sides of ball groove 2, two are aimed at light source 3 relative to ball groove 2 axis symmetry in the horizontal direction, described aiming light source 3 is to transmitted beam on the right side of ball groove 2, the optical axis of described light beam and ball groove 2 axis parallel in the horizontal direction, described Sphere orientation parts also comprise of being arranged at directly over ball groove 2 and aim at light source B7, described aiming light source B7 is connected with support 8 by the rotating shaft 9 of support 8 central authorities, optical axis and ball groove 2 axis in the horizontal direction of aiming at the light beam that light source B7 launches are positioned at same plane, described aiming light source B7 can around the shaft 9 at this rotation with in surface, and the height of described support 8 is 120mm, described club positioning element is arranged on the left of ball groove 2, and described club positioning element is symmetrical relative to the perpendicular at ball groove 2 place, axis in the horizontal direction, described club positioning element is symmetrical relative to the perpendicular at ball groove 2 axis place in the horizontal direction, described club positioning element comprise to extend on the left of base 1 and with the extension 5 of base 1 uniform thickness, described extension 5 is provided with two chutes 10 in the axis bilateral symmetry in water direction, the slideway of two chutes 10 and the axis parallel of extension 5 in water direction, location-plate 4 is plugged with respectively in chute 10, level interval between described location-plate 4 is 20mm, the height of location-plate 4 is 100mm, and described extension 5 is 8mm from the horizontal length that base 1 edge extends, described club positioning element also comprises the flexible elongated strap 6 of the left bottom being arranged at base 1, the axis of described flexible elongated strap 6 overlaps with ball groove 2 axis in the horizontal direction, the axis of described flexible elongated strap 6 is provided with mark, the bandwidth of described elongated strap 6 is equal with the level interval between location-plate 4, and described elongated strap 6 belt length is 500mm.Wherein, the spacing of two aiming light sources 3 equals the diameter of the required fixing billiard ball spheroid of ball groove 2, and described aiming light source 3 is generating laser.
Embodiment 5 combines all effects of embodiment 1-4, and particular content is shown in corresponding embodiment scheme, does not repeat them here.

Claims (10)

1. a billiards exerciser, it is characterized in that, comprise base (1), described base (1) right side is provided with Sphere orientation parts, described Sphere orientation parts have Sphere orientation fixed structure, the transverse direction left side of Sphere orientation parts is provided with club positioning element, and described club positioning element is located at the both sides, axis in Sphere orientation component level direction.
2. a kind of billiards exerciser according to claim 1, it is characterized in that, described Sphere orientation fixed structure is ball groove (2), described ball groove (2) has opening to the right, and ball groove (2) right side is positioned at the left side of the vertical centre axial plane of required fixing billiard ball.
3. a kind of billiards exerciser according to claim 2, it is characterized in that, the longitudinal both sides of described ball groove (2) are arranged respectively aims at light source (3), two are aimed at the horizontal median axis symmetry of light source (3) relative to ball groove (2), described aiming light source (3) transmitted beam to the right, the optical axis of described aiming light beam of light source is parallel with the horizontal median axis of ball groove (2), and the spacing of described two described aiming light source (3) transmitted beam equals the diameter of the required fixing billiard ball of ball groove (2).
4. a kind of billiards exerciser according to claim 1, it is characterized in that, described Sphere orientation fixed structure is two poles of stretching to the required fixing billiard ball centre of sphere, two poles are symmetricly set on the both sides, axis of the horizontal direction of required fixing billiard ball, one end of described pole is fixed on base (1), the sphere-contact of the other end and required fixing billiard ball.
5. a kind of billiards exerciser according to Claims 2 or 3, it is characterized in that, be provided with directly over described ball groove (2) and aim at light source B (7), described aiming light source B (7) both sides are provided with longitudinal rotating shaft (9), rotating shaft (9) is fixed on support (8) top, the optical axis of described aiming light source B (7) light beam is positioned at the axis vertical direction of ball groove (2) horizontal direction, described aiming light source B can (9) vertical rotating around the shaft, described support (8) is hinged on base, and the height of support (8) is 60 ~ 200mm.
6. a kind of billiards exerciser according to claim 5, is characterized in that, described aiming light source (3) or to aim at light source B (7) be generating laser.
7. a kind of billiards exerciser according to claim 1, it is characterized in that, described club positioning element comprises the extension (5) that level is located at base (1) left side, described extension (5) is provided with two chutes (10) in the axis bilateral symmetry in Sphere orientation parts water direction, two chutes (10) and extension (5) axis parallel in water direction, vertical location-plate (4) is provided with in chute (10), described location-plate (4) longitudinal pitch is 15 ~ 30mm, location-plate (4) is highly 40 ~ 100mm, the horizontal length of described extension (5) is 30 ~ 150mm.
8. a kind of billiards exerciser according to claim 7, it is characterized in that, the thickness of described base (1), extension (5) is 2 ~ 5mm.
9. according to a kind of billiards exerciser described in claim 7 or 8, it is characterized in that, described extension (5) left side is provided with flexible elongated strap (6), and the axis of described elongated strap (6) overlaps with the axis of ball groove (2) horizontal direction.
10. a kind of billiards exerciser according to claim 9, it is characterized in that, the axis of described elongated strap (6) is provided with mark, and the width of described elongated strap (6) is 15 ~ 30mm, and the length of described elongated strap is 100 ~ 500mm.
CN201520173760.2U 2015-03-26 2015-03-26 A kind of billiards exerciser Expired - Fee Related CN204522236U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113398562A (en) * 2021-07-29 2021-09-17 司广路 Billiard ball auxiliary device and practice method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113398562A (en) * 2021-07-29 2021-09-17 司广路 Billiard ball auxiliary device and practice method

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