Tumbling device for billiard balls

Abstract

The invention relates to a turning device for billiard balls, and belongs to the technical field of billiard ball equipment. The invention comprises an outer fixed frame, wherein an inner turning frame is rotatably connected inside the outer fixed frame, the outer fixed frame is a square frame structure with upper and lower openings, the inner turning frame is a square frame structure, the turning axis of the inner turning frame is horizontally arranged along the middle of the front and rear plates of the outer fixed frame, a tripod is slidably connected inside the inner turning frame along the front and rear directions, a fixing hole is arranged on the tripod, the tripod is parallel to a cover plate at the bottom of the inner turning frame, and the distance between the two is smaller than the diameter of the billiard ball, a synchronous belt transmission mechanism is arranged inside the inner turning frame, the tripod is fixedly connected to the synchronous belt, and the synchronous belt transmission mechanism transmits the tripod to the outer sides of the outer fixed frame and the inner turning frame, and solves the problem that the turning radius of a swinging ball plate in the current automatic swinging ball device is too large.

Description

Technical Field

[0001] The invention belongs to the technical field of billiard equipment, and in particular relates to a turning device for billiard balls. Background Art

[0002] Billiards is a sport that many people like, but placing the balls is a rather troublesome task. Players need to place the balls themselves or ask staff to help place the balls, which requires a lot of manpower costs and also reduces the user experience of players. Therefore, a proprietary automatic ball placing device is needed to realize automatic ball placing after each billiard game, without the need for manual placing of the balls. In the existing automatic ball placing device, after the billiard balls are collected, identified, and placed under the billiard table, the billiard balls need to be moved to the top of the billiard table, and the ball placing plate needs to be flipped 180° so that the billiard balls can be placed smoothly on the billiard table. However, in the existing automatic ball placing device, when the ball placing plate is flipped 180°, the flip axis is on the outside of the ball placing plate, so the entire flip radius of the ball placing plate is too large, which will take up more space, which is not conducive to the use in the limited space of the billiard hall. Summary of the invention

[0003] The invention overcomes the shortcomings of the prior art and provides a turning device for billiard balls, thereby solving the problem that the turning radius of the ball swinging plate in the current automatic ball swinging device is too large.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions.

[0005] The turning device for billiard balls comprises an outer fixed frame, wherein the inner turning frame is rotatably connected inside the outer fixed frame, the outer fixed frame is a square frame structure with upper and lower openings, the inner turning frame is a square frame structure, the turning axis of the inner turning frame is horizontally arranged along the middle of the front and rear plates of the outer fixed frame, the inner turning frame is slidably connected with a tripod along the front-back direction, the tripod is provided with fixing holes, the tripod is parallel to the cover plate at the bottom of the inner turning frame, and the distance between the two is smaller than the diameter of the billiard ball, a synchronous belt transmission mechanism is arranged inside the inner turning frame, the tripod is fixedly connected to the synchronous belt, and the synchronous belt transmission mechanism transmits the tripod to the outer side of the outer fixed frame and the inner turning frame.

[0006] Furthermore, the lower edges of the front plate of the outer fixed frame and the front plate of the inner flip frame are spaced apart from the lower edges of the left plate and the right plate, and the upper end surface of the tripod is lower than the lower edges of the front plate of the outer fixed frame and the front plate of the inner flip frame.

[0007] Furthermore, a stepper motor is fixedly arranged on the outer side surface of the rear plate of the outer fixed frame, and the output shaft of the stepper motor is fixedly connected to the outer side surface of the rear plate of the inner flip frame. A rotating rod is fixedly arranged on the outer side surface of the front plate of the inner flip frame, and the rotating rod is rotatably connected to the front plate of the outer fixed frame through a bearing.

[0008] Furthermore, the left and right ends of the tripod are slidably connected to the inner side surfaces of the left plate and the right plate of the inner flip frame through sliding rails respectively.

[0009] Furthermore, the cover plate at the bottom of the inner flip frame is connected to the lower ends of the left plate and the right plate of the inner flip frame through a spring pin.

[0010] Furthermore, a micro switch is arranged on the left and right sides of the inner side surface of the rear plate of the outer fixed frame, and the two micro switches are symmetrically arranged along the axis of the rotation shaft of the inner flip frame. A touch rod is fixedly arranged on the outer side surface of the rear plate of the inner flip frame, and the distance between the touch rod and the axis of the rotation shaft of the inner flip frame is equal to the distance between the two micro switches and the axis of the rotation shaft of the inner flip frame.

[0011] Furthermore, a dual-axis motor is fixedly provided on the inner side surface of the rear plate of the inner flip frame, and the two output shafts of the dual-axis motor are horizontally arranged along the left and right sides. A synchronous wheel is fixedly provided on each of the two output shafts. A tensioner is fixedly provided on the front end of the inner side surfaces of the left plate and the right plate of the inner flip frame, and the synchronous wheel is connected to the idle wheel in the corresponding tensioner through a synchronous belt.

[0012] Furthermore, a tooth plate and a connecting plate are fixedly provided on the left and right synchronous belts respectively. The tooth plate is located on the inner side of the synchronous belt, and the connecting plate is located on the outer side of the synchronous belt. The tooth plate and the connecting plate are fixedly connected. The connecting plate is fixedly connected to the rear end of the tripod. The tooth plate and the synchronous belt are meshed through a toothed structure.

[0013] Furthermore, a metal proximity sensor is fixedly provided on the inner side surface of the front plate and the inner side surface of the rear plate of the inner flip frame, and two limit switch induction plates are correspondingly provided at the rear end of the tripod.

[0014] Furthermore, after the inner flip frame flips 180° along the axis of the rotation shaft, the height of the upper end surface of the tripod is higher than the height of the upper edges of the front plates of the outer fixed frame and the inner flip frame.

[0015] The beneficial effects of the present invention compared with the prior art are as follows:

[0016] The flipping device provided by the present invention sets the flipping axis of the inner flip frame at the inner middle position of the outer fixed frame, and the inner flip frame flips along its own horizontal center line, and there is no need to set the flipping axis on the outer side of the inner flip frame, which can greatly save the radius of the inner flip frame when flipping, thereby saving the use space on site and being more in line with the actual on-site use scene; a tripod that can slide outward is set inside the inner flip frame, so that it is more convenient to receive and send the ball, and the speed of automatic ball swinging is improved; a micro switch and a metal proximity sensor are set, and the flipping of the inner flip frame and the sliding in and out of the tripod can be accurately controlled, thereby improving the accuracy of automatic ball swinging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings:

[0018] Figure 1 It is a three-dimensional schematic diagram of the present invention as a whole Figure 1 ;

[0019] Figure 2 It is a three-dimensional schematic diagram of the present invention as a whole Figure 2 ;

[0020] Figure 3 It is a three-dimensional schematic diagram of the present invention as a whole Figure 3 ;

[0021] Figure 4 is a top view of the present invention as a whole;

[0022] Figure 5 yes Figure 4 AA section view in;

[0023] Figure 6 yes Figure 4 BB section view in;

[0024] Figure 7 is a three-dimensional schematic diagram of an external fixing frame;

[0025] Figure 8 It is a three-dimensional schematic diagram of the inner flip frame;

[0026] Fig. 9 It is a schematic diagram of the connection between the inner flip frame and the tripod;

[0027] Fig.10 It is a schematic diagram of the connection between the inner flip frame, the tripod and the synchronous belt transmission mechanism;

[0028] Fig.11 This is the connection diagram between the synchronous belt drive mechanism and the tripod Figure 1 ;

[0029] Fig.12 This is the connection diagram between the synchronous belt drive mechanism and the tripod Figure 2 ;

[0030] Fig.13 It is a schematic diagram of the structure when the inner flip frame of the present invention is flipped upward by 180°;

[0031] Fig.14 It is a front view of the inner flip frame of the present invention when it is flipped upward by 180°;

[0032] Fig.15 This is a schematic diagram of the structure of the tripod when the inner flip frame flips upward 180 degrees in the present invention and slides outward. Figure 1 ;

[0033] Fig.16 This is a schematic diagram of the structure of the tripod when the inner flip frame flips upward 180 degrees in the present invention and slides outward. Figure 2 ;

[0034] Fig.17 This is a schematic diagram of the structure of the tripod when the inner flip frame flips upward 180 degrees in the present invention and slides outward. Figure 3 ;

[0035] Fig.18 This is a schematic diagram of the structure of the tripod when the inner flip frame is not flipped and the tripod slides outward. Figure 1 ;

[0036] Fig.19 This is a schematic diagram of the structure of the tripod when the inner flip frame is not flipped and the tripod slides outward. Figure 2 ;

[0037] Fig. 20 It is a schematic diagram of a structure in which the cover plate and the overlap are connected via a spring pin;

[0038] Among them, 1 is the front mounting plate, 2 is the left mounting plate, 3 is the right mounting plate, 4 is the rear mounting plate, 5 is the stepper motor, 6 is the front baffle, 7 is the left support plate, 8 is the right support plate, 9 is the rear baffle, 10 is the cover plate, 11 is the overlap, 12 is the spring pin, 13 is the micro switch, 14 is the touch rod, 15 is the rotating rod, 16 is the tripod, 17 is the slide rail, 18 is the metal proximity sensor, 19 is the limit switch sensing plate, 20 is the dual-axis motor, 21 is the synchronous wheel, 22 is the connecting rod, 23 is the coupling, 24 is the bearing seat, 25 is the synchronous belt, 26 is the gear plate, 27 is the connecting plate, 28 is the tensioner, 29 is the fixing hole, 30 is the billiard ball, and 31 is the groove. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The technical solutions of the present invention are described in detail below in conjunction with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0040] like Figure 1 As shown in FIG. 12 , the present invention provides a flipping device for billiard balls, including an external fixed frame, a flipping mechanism rotatably connected inside the external fixed frame, a ball pushing mechanism slidably connected inside the flipping mechanism, the flipping mechanism flips the billiard ball 30 180° up and down in the external fixed frame, a synchronous belt drive mechanism is arranged inside the ball pushing mechanism, and the synchronous belt drive mechanism is used to push the billiard ball 30 out of the flipping mechanism to the outside.

[0041] The outer fixing frame includes a front mounting plate 1, a left mounting plate 2, a right mounting plate 3, and a rear mounting plate 4. The four vertically arranged mounting plates are spliced ​​with each other by screws to form a square frame structure that penetrates from top to bottom. Among them, the height of the left mounting plate 2 is equal to that of the right mounting plate 3, and the height of the front mounting plate 1 is less than that of the left mounting plate 2 and the right mounting plate 3. The two ends of the front mounting plate 1 are respectively connected to the upper ends of the left mounting plate 2 and the right mounting plate 3, that is, the upper edge of the front mounting plate 1 is flush with the upper edges of the left mounting plate 2 and the right mounting plate 3.

[0042] The flip mechanism includes an inner flip frame, which is arranged inside the outer fixed frame and keeps a certain distance from the inner walls of the outer fixed frame. The inner flip frame includes a vertically arranged front baffle 6, a rear baffle 9, a left support plate 7, a right support plate 8 and a horizontally arranged cover plate 10. The four vertical plates are spliced ​​together by screws to form a square frame structure that penetrates from top to bottom. The cover plate 10 is arranged at the lower end of the square frame structure to close the lower end opening of the square frame structure.

[0043] The lower edge of the end surface of the left support plate 7 and the right support plate 8 on one side close to each other is provided with a lap edge 11 along the direction of approaching each other, and the length of the lap edge 11 is equal to the length of the left support plate 7 and the right support plate 8. The upper end surface of the cover plate 10 contacts the lower end surfaces of the lap edges 11 on both sides, and each lap edge 11 is connected to the cover plate 10 through two front and rear spring pins 12 respectively. Since the spring pins 12 are provided with springs inside, the cover plate 10 can move relative to the left support plate 7 and the right support plate 8 to a certain extent.

[0044] The connection structure between the cover plate 10 and the overlapped edges 11 on both sides is as follows: Fig. 20 As shown, the pin passes through the cover plate 10 and the overlap 11 from bottom to top, and is tightened with a nut at the upper end of the pin. A spring is sleeved on the pin between the cover plate 10 and the overlap 11, so that the cover plate 10 and the overlap 11 can move relative to each other. When the nut is rotated, the distance between the cover plate 10 and the overlap 11 changes, and the compression amount of the spring between the cover plate 10 and the overlap 11 is adjusted, thereby adjusting the spring's resilience.

[0045] The heights of the left support plate 7 and the right support plate 8 are equal, the height of the front baffle plate 6 is lower than the heights of the left support plate 7 and the right support plate 8, and the two ends of the front baffle plate 6 are respectively connected to the upper ends of the left support plate 7 and the right support plate 8, that is, the upper edges of the front baffle plate 6 are respectively flush with the upper edges of the left support plate 7 and the right support plate 8.

[0046] The cover plate 10 at the lower end of the inner flip frame is lower than the lower edge height of the outer fixed frame, and the upper edge height of the inner flip frame is lower than the upper edge height of the outer fixed frame. At the same time, the lower edge height of the front baffle 6 is higher than the lower edge height of the front mounting plate 1.

[0047] A stepper motor 5 is fixedly provided on the upper end of the outer surface of the rear mounting plate 4 of the outer fixed frame, and the stepper motor 5 is located in the middle position of the rear mounting plate 4 along the left-right direction. The output shaft of the stepper motor 5 passes through the rear mounting plate 4 and faces the front side horizontally. A flange is fixedly provided on the outer surface of the rear baffle 9 of the inner flip frame by screws, and the flange is also fixedly connected to the output shaft of the stepper motor 5. A flange is fixedly provided on the inner side surface of the front baffle 6 by screws, and a rotating rod 15 is fixedly provided inside the flange, and the rotating rod 15 passes through the front baffle 6 and extends to the front side of the front baffle 6. A bearing is fixedly provided on the front mounting plate 1, and the rotating rod 15 is fixedly inserted inside the bearing. The rotating rod 15 is coaxially provided with the output shaft of the stepper motor 5, so that the stepper motor 5 can drive the inner flip frame to rotate inside the outer fixed frame.

[0048] On the inner side surface of the rear mounting plate 4, a micro switch 13 is respectively arranged on the left and right sides of the output shaft of the stepper motor 5, and the two micro switches 13 are arranged symmetrically along the axis of the output shaft of the stepper motor 5. On the outer side surface of the rear baffle 9, a touch rod 14 is arranged horizontally along the front-back direction, and the distance between the touch rod 14 and the axis of the output shaft of the stepper motor 5 is equal to the distance between the contacts of the two micro switches 13 and the axis of the output shaft of the stepper motor 5. When the inner flip frame is in the front horizontal state, the touch rod 14 contacts the contact of the left micro switch 13; when the inner flip frame rotates 180° and is in the reverse horizontal state, the touch rod 14 contacts the contact of the right micro switch 13. By setting two micro switches 13 and a touch rod 14, the control of the positive and negative horizontal states of the inner flip frame is realized.

[0049] A horizontal tripod 16 is arranged inside the inner flip frame. The tripod 16 is a square plate-shaped structure. The left and right ends of the tripod 16 are respectively connected to the inner side surfaces of the left support plate 7 and the right support plate 8 through the slide rails 17. The left and right ends of the tripod 16 are respectively fixedly connected to the inner rails of the slide rails 17, and the inner side surfaces of the left support plate 7 and the right support plate 8 are respectively fixedly connected to the outer rails of the slide rails 17, that is, the tripod 16 can slide forward and backward relative to the inner flip frame through the slide rails 17.

[0050] The upper end height of the tripod 16 is lower than the lower edge height of the front mounting plate 1, and the tripod 16 is located above the cover plate 10, so that the tripod 16 can slide out from under the front baffle 6 of the inner flip frame and the front mounting plate 1 of the outer fixed frame.

[0051] A metal proximity sensor 18 is disposed on the inner side of the rear baffle 9, and a limit switch induction plate 19 is fixedly disposed on the rear end surface of the tripod 16. The metal proximity sensor 18 and the limit switch induction plate 19 are disposed in a front-to-rear correspondence. When the tripod 16 slides to the rear end, the limit switch induction plate 19 contacts the metal proximity sensor 18, and the metal proximity sensor 18 receives a signal, and learns that the tripod 16 slides to the rear end at this time, that is, the tripod 16 completely enters the inner flip frame. At the same time, the limit switch induction plate 19 and the metal proximity sensor 18 play a limiting role, giving the tripod 16 a limit position at the rear end.

[0052] A metal proximity sensor 18 is fixedly provided on the inner side surface of the front baffle 6, and the metal proximity sensor 18 is located above the tripod 16. A limit switch sensing plate 19 is fixedly provided on the rear end surface of the tripod 16, and the limit switch sensing plate 19 is located at the upper end of the tripod 16. The metal proximity sensor 18 and the limit switch sensing plate 19 are arranged correspondingly in front and back. When the tripod 16 slides to the front end, the tripod 16 slides out to the outside of the outer fixed frame, and the limit switch sensing plate 19 contacts the metal proximity sensor 18. The metal proximity sensor 18 receives a signal and learns that the tripod 16 slides to the front end, that is, the tripod 16 slides out to the outside of the inner flip frame. At the same time, the limit switch sensing plate 19 and the metal proximity sensor 18 play a limiting role, giving the tripod 16 a limit at the front end position.

[0053] A dual-axis motor 20 is fixedly arranged on the inner side of the rear baffle 9, and the two output shafts of the dual-axis motor 20 are arranged horizontally along the left and right directions. The dual-axis motor 20 is arranged near the left support plate 7, and a synchronous wheel 21 is fixedly arranged on the output shaft on the left side of the dual-axis motor 20, and a connecting rod 22 is fixedly arranged on the output shaft on the right side of the dual-axis motor 20 through a coupling 23, and a synchronous wheel 21 is fixedly arranged on one end of the connecting rod 22 near the right support plate 8. One end of the connecting rod 22 near the right support plate 8 is plugged into the inside of the bearing seat 24, and the bearing seat 24 is fixedly arranged on the inner side of the rear baffle 9 through a connecting block, and the synchronous wheel 21 on the connecting rod 22 is located on the right side of the bearing seat 24.

[0054] A tensioner 28 is fixedly provided on the upper end surface of the overlap 11 on the left support plate 7 and the right support plate 8 at the end away from the rear baffle 9, and an idler synchronous wheel is rotatably connected inside the tensioner 28. The same synchronous belt 25 is sleeved between the idler synchronous wheel and the rear synchronous wheel 21, and the rear synchronous wheel 21 drives the idler synchronous wheel to rotate together through the synchronous belt 25.

[0055] A tooth plate 26 and a connecting plate 27 are fixedly arranged on the left and right synchronous belts 25, respectively. The tooth plate 26 is located on the inner side of the synchronous belt 25, and the connecting plate 27 is located on the outer side of the synchronous belt 25. The tooth plate 26 and the connecting plate 27 are fixedly connected by screws. The upper end surface of the tooth plate 26 is arranged with a tooth structure, and the tooth structure on the upper end surface of the tooth plate 26 meshes with the tooth structure on the inner side surface of the synchronous belt 25, so that the synchronous belt 25 drives the tooth plate 26 and the connecting plate 27 to rotate synchronously. The connecting plate 27 is fixedly connected to the rear side end surface of the tripod 16 by screws, and the tripod 16 is driven to rotate together by the connecting plate 27. In this way, the synchronous belt 25 can drive the tripod 16 to slide forward and backward.

[0056] The tripod 16 is provided with a plurality of fixing holes 29 , which are arranged in a triangular shape, and the distance between the fixing holes 29 and the cover plate 10 is smaller than the diameter of the billiard ball 30 .

[0057] A triangular groove 31 is provided on the upper end face of the tripod 16 . The groove 31 is provided along the overall outer contour of the fixing hole 29 . The groove 31 is connected to the front end face of the tripod 16 , that is, the groove 31 is provided with a forward opening at the front end face of the tripod 16 .

[0058] The working principle of the present invention is:

[0059] First, the billiard ball 30 is stored in the flip mechanism through the whole device. The stepper motor 5 controls the inner flip frame to rotate until the touch rod 14 contacts the contact point of the micro switch 13 on the other side and stops rotating. At this time, the inner flip frame rotates 180°, and the cover plate 10 rotates upward. The cover plate 10 is located above the tripod 16. At this time, the tripod 16 is located above the front mounting plate 1 (as shown in FIG. Fig.13 as shown).

[0060] Then the dual-axis motor 20 rotates forward, controlling the synchronous wheels 21 on both sides to rotate together, and the synchronous wheels 21 drive the tripod 16 to slide forward together through the toothed plate 26 and the connecting plate 27. When the metal proximity sensor 18 fixed on the front baffle 6 contacts the limit switch sensing plate 19 at the rear end of the tripod 16, the dual-axis motor 20 stops rotating, and the tripod 16 moves to the frontmost position. At this time, the fixing hole 29 on the tripod 16 completely slides out to the outside of the outer fixing frame (such as Fig.15 as shown).

[0061] Then, the billiard balls 30 are placed one by one into the fixing holes 29 on the tripod 16. After the billiard balls 30 are placed, the dual-axis motor 20 is controlled to rotate in the opposite direction, so that the tripod 16 is completely retracted into the inner flip frame (such as Fig.13As shown). Since the cover plate 10 is connected to the left support plate 7 and the right support plate 8 via the spring pin 12, the cover plate 10 can float up and down to a certain extent, so that when the billiard ball 30 is put into the inner flip frame, the billiard ball 30 can lift the cover plate 10, thereby smoothly retracting it into the inner flip frame.

[0062] When the synchronous belt 25 controls the tripod 16 to slide backward and be completely retracted into the inner flip frame, the metal proximity sensor 18 fixed on the inner side of the rear baffle 9 contacts the limit switch sensing plate 19 at the rear end of the tripod 16, and the dual-axis motor 20 stops rotating, and the tripod 16 is reset.

[0063] Then, the stepper motor 5 is controlled to rotate in the opposite direction, and the stepper motor 5 controls the inner flip frame to rotate in the opposite direction to the previous direction, until the touch rod 14 contacts the contact point of the micro switch 13 on the other side and stops rotating. At this time, the inner flip frame rotates 180°, the cover plate 10 rotates to the bottom, and the tripod 16 is located above the cover plate 10. At this time, the tripod 16 is located as a whole below the front mounting plate 1 (such as Figure 2 As shown in FIG. 1 ). Since the cover plate 10 rotates simultaneously with the inner flip frame, the billiard ball 30 will not fall out of the inner flip frame during the flipping process due to the obstruction of the cover plate 10 .

[0064] The outer side of the outer fixing frame is also connected to a moving device to realize the movement of the outer fixing frame near the billiard table. When the inner flip frame flips 180 degrees, the tripod 16 is located above the billiard ball 30. The moving device controls the device to move as a whole until the lower end surface of the cover plate 10 contacts the table cloth of the billiard table.

[0065] Then, the dual-axis motor 20 is controlled to continue to rotate forward, so that the tripod 16 slides forward, and the tripod 16 pushes the billiard ball 30 to roll forward until it completely rolls to the outside of the inner flip frame, and the billiard ball 30 contacts the table cloth, completing the output of the billiard ball 30. In this way, the output billiard ball 30 is arranged regularly according to the arrangement rule of the fixing holes 29 on the tripod 16 (such as Fig.18 As shown). At this time, because the billiard balls have dropped by the thickness of a cover plate, there is still a gap between the billiard balls, which does not conform to the billiard ball swinging law. Therefore, the moving device controls the flip device to move downward as a whole, so that the gap between the tripod and the billiard balls is reduced. Under the action of the tripod and the fixing holes, the billiard balls are closely attached to each other and tangent to each other, thus conforming to the billiard ball swinging law. Since springs are arranged between the cover plate and the support plates on both sides of the inner flip frame, the downward pressure of the tripod can be achieved under the condition that the cover plate is closely attached to the table cloth.

[0066] After the billiard ball 30 is output, the mobile device controls the device to move upward as a whole, so that the tripod 16 is separated from the billiard ball 30, and at the same time, the dual-axis motor 20 rotates in the opposite direction, so that the tripod 16 is retracted into the inner flip frame to prepare for the next work (such as Figure 2 as shown).

[0067] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A billiard ball turning device, characterized in that: The utility model comprises an outer fixed frame, wherein the inner flip frame is rotatably connected inside the outer fixed frame, the outer fixed frame is a square frame structure with upper and lower openings, the inner flip frame is a square frame structure, the rotation axis of the inner flip frame is horizontally arranged along the middle of the front and rear plates of the outer fixed frame, the inner flip frame is slidably connected with a tripod along the front-back direction, the tripod is provided with fixing holes, the tripod is parallel to the cover plate at the bottom of the inner flip frame and the distance between the two is smaller than the diameter of the billiard ball, a synchronous belt transmission mechanism is arranged inside the inner flip frame, the tripod is fixedly connected to the synchronous belt, and the synchronous belt transmission mechanism transmits the tripod to the outer side of the outer fixed frame and the inner flip frame.

2. The billiard ball turning device according to claim 1, characterized in that: The lower edges of the front plate of the outer fixed frame and the front plate of the inner flip frame are spaced apart from the lower edges of the left plate and the right plate, and the upper end surface of the tripod is lower than the lower edges of the front plate of the outer fixed frame and the front plate of the inner flip frame.

3. The billiard ball turning device according to claim 1, characterized in that: A stepper motor is fixedly arranged on the outer side of the rear plate of the outer fixed frame, and the output shaft of the stepper motor is fixedly connected to the outer side of the rear plate of the inner flip frame. A rotating rod is fixedly arranged on the outer side of the front plate of the inner flip frame, and the rotating rod is rotatably connected to the front plate of the outer fixed frame through a bearing.

4. The billiard ball turning device according to claim 1, characterized in that: The left and right ends of the tripod are respectively slidably connected with the inner side surfaces of the left plate and the right plate of the inner flip frame through sliding rails.

5. The billiard ball turning device according to claim 1, characterized in that: The cover plate at the bottom of the inner flip frame is connected with the lower ends of the left plate and the right plate of the inner flip frame through a spring pin shaft.

6. The billiard ball turning device according to claim 1, characterized in that: A micro switch is arranged on the left and right sides of the inner side surface of the rear plate of the outer fixed frame, and the two micro switches are symmetrically arranged along the axis of the rotation shaft of the inner flip frame. A touch rod is fixedly arranged on the outer side surface of the rear plate of the inner flip frame, and the distance between the touch rod and the axis of the rotation shaft of the inner flip frame is equal to the distance between the two micro switches and the axis of the rotation shaft of the inner flip frame.

7. The billiard ball turning device according to claim 1, characterized in that: A double-axis motor is fixedly arranged on the inner side surface of the rear plate of the inner flip frame, and the two output shafts of the double-axis motor are arranged horizontally along the left and right sides. A synchronous wheel is fixedly arranged on the two output shafts respectively. A tensioner is respectively arranged on the front end of the inner side surface of the left plate and the right plate of the inner flip frame, and the synchronous wheel is connected to the idle wheel in the corresponding tensioner through a synchronous belt.

8. The billiard ball turning device according to claim 7, characterized in that: A tooth plate and a connecting plate are fixedly arranged on the left and right synchronous belts respectively. The tooth plate is located on the inner side of the synchronous belt, and the connecting plate is located on the outer side of the synchronous belt. The tooth plate is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the rear end of the tripod. The tooth plate and the synchronous belt are meshed through a toothed structure.

9. The billiard ball turning device according to claim 1, characterized in that: A metal proximity sensor is fixedly arranged on the inner side surface of the front plate and the inner side surface of the rear plate of the inner flip frame, and two limit switch induction plates are correspondingly arranged at the rear end of the tripod.

10. The billiard ball turning device according to claim 1, characterized in that: After the inner flip frame flips 180 degrees along the axis of the rotation shaft, the upper end surface height of the tripod is higher than the upper edge height of the front plate of the outer fixed frame and the inner flip frame.

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