Intelligent tennis court

Abstract

The application relates to a smart tennis court, which comprises a tennis court fence assembly, a first tennis training device and a second tennis training device. The tennis court fence assembly comprises a fence and a gate, and the gate is installed on an access door of the fence. The first tennis training device is installed in the fence, and the first tennis training device comprises a first ball collecting assembly and a first ball feeding assembly. The first ball collecting assembly sends a tennis ball to the first ball feeding assembly, and the first ball feeding assembly feeds the tennis ball to a practice person. The technical scheme of the application effectively solves the problem that, in the prior art, tennis training not only wastes manpower but also affects the experience of the practice person.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tennis training courts, and in particular to a smart tennis court. BACKGROUND

[0002] Tennis is a sport with strong fitness and competition, and is loved by more and more people.

[0003] In daily training, a large number of tennis balls are needed, and after training, the tennis balls are scattered in various corners of the training court. The time-consuming and laborious affairs such as picking up balls and site sanitation make the utilization efficiency of the existing tennis court not high. The picking up work of the tennis balls needs to be completed by specially-assigned staff, and the staff collects the balls in a time-consuming and laborious manner. In addition, after the tennis balls are collected together, other personnel are needed to assist in throwing the balls, which not only wastes a large amount of manpower, but also affects the experience of the trainees. SUMMARY

[0004] The present application provides a smart tennis court, which is used to solve the problem that the existing technology wastes manpower and affects the experience of trainees during tennis training.

[0005] To solve the above problems, the present application provides a smart tennis court, which comprises a tennis court fence assembly, a first tennis training device, and a first tennis training device.

[0006] Further, the first ball collecting assembly comprises a folding frame, a ball collecting bottom cloth and a ball rolling structure, the ball collecting bottom cloth is installed on the folding frame, and the ball rolling structure is installed on the ball collecting bottom cloth.

[0007] Further, the folding frame comprises a telescopic bottom rod and a supporting stand, the ball collecting bottom cloth comprises a first ball collecting cloth and a second ball collecting cloth, the telescopic bottom rod is located on both sides of the ball collecting bottom cloth, the first end of the telescopic bottom rod is close to the fence, the second end of the telescopic bottom rod extends away from the fence, the first side of the first ball collecting cloth is close to the fence, the second side of the first ball collecting cloth is connected with the first side of the ball rolling structure, the first side of the second ball collecting cloth is connected with the second side of the ball rolling structure, the second side of the second ball collecting cloth is connected with the first end of the supporting stand, the second end of the supporting stand is supported on the ground, and the first ball collecting assembly further comprises a ball rolling cloth, the ball rolling cloth comprises a ball rolling cloth main body and supporting rods located on both sides of the ball rolling cloth main body, the first end of the supporting rod is rotatably connected with the second end of the telescopic bottom rod, and the second end of the supporting rod is slidably connected with the first end of the supporting stand.

[0008] Further, the rolling ball structure comprises a first rolling ball guide, a second rolling ball guide, a first connecting part, a second connecting part and a limiting connecting part, the first rolling ball guide is connected to the second side of the first ball collecting cloth, the second rolling ball guide is connected to the first side of the second ball collecting cloth, the first rolling ball guide is connected to the first end of the first connecting part, the second end of the first connecting part is connected to the first end of the second connecting part, the second end of the second connecting part is connected to the second rolling ball guide, and the two ends of the limiting connecting part are connected to the first connecting part and the second connecting part respectively.

[0009] Further, the first ball collecting assembly further comprises a ball feeding structure, the side of the rolling ball structure away from the ball feeding structure is higher than the side of the rolling ball structure close to the ball feeding structure, and the rolling ball structure is gradually inclined.

[0010] Further, the first ball feeding assembly comprises a first pipe body and a second pipe body, the first pipe body is arranged at an angle with the horizontal plane, the first end of the first pipe body is higher than the second end of the first pipe body, the first end of the first pipe body is provided with a ball inlet, the second pipe body is vertically arranged, the first end of the second pipe body is connected to the first pipe body in communication, and the second end of the second pipe body is provided with a ball outlet.

[0011] Further, the first ball feeding assembly is connected to the ball outlet of the first ball collecting assembly, and the first ball feeding assembly can shoot the tennis ball to the side away from the first tennis training device.

[0012] Further, the intelligent tennis court further comprises a second tennis training device, the first tennis training device is located on one side of the center line in the fence and is parallel to the center line, the second tennis training device is located in the fence, and the length of the first tennis training device is greater than the length of the second tennis training device.

[0013] Further, the second tennis training device is a plurality of, the plurality of second tennis training devices are located on the side of the first tennis training device and / or the plurality of second tennis training devices are located on the side of the fence at both ends of the center line.

[0014] Further, the second tennis training device comprises a ball blocking assembly, a second ball collecting assembly and a second ball feeding assembly, the second ball collecting assembly is arranged adjacent to the ball blocking assembly, the second ball collecting assembly sends the tennis ball to the second ball feeding assembly, and the second ball feeding assembly feeds the tennis ball to the trainee.

[0015] The above technical solutions provided by the present application have the following advantages compared with the prior art:

[0016] The tennis fence assembly of the technical scheme of the present application is provided with a gate, which can avoid irrelevant personnel from entering at will and affecting the ball practice. When the practice personnel practice the ball hitting, the practice personnel hit the tennis ball, some of which are intercepted by the fence to the first ball collecting assembly, and some of which are rolled into the ball collecting bottom cloth through the ball rolling cloth. The first ball collecting assembly sends the received tennis ball to the first ball feeding assembly, and the first ball feeding assembly feeds the tennis ball to the practice personnel, and the practice personnel hit the tennis ball to the first tennis ball training device, and the above process is repeated. Through the above structure, the personnel for picking up the ball and the personnel for throwing the ball can be reduced, and the experience of playing tennis can be improved. The technical scheme of the present application effectively solves the problem that in the prior art, the tennis ball practice not only wastes manpower but also affects the experience of the practice personnel. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the present application, and together with the specification serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0019] Figure 1 A schematic view of the planar arrangement of the tennis training field of the first embodiment of the present application is shown.

[0020] Figure 2 A schematic view of the structure of the ball collecting assembly of the tennis training device of the first embodiment of the present application is shown. Figure 1

[0021] A schematic view of the A-A sectional view of the ball collecting assembly of the first embodiment of the present application is shown. Figure 3 Figure 2 A schematic view of the structure at A of the ball collecting assembly of the first embodiment of the present application is shown.

[0022] Figure 4 Figure 3 A schematic view of the structure at B of the ball collecting assembly of the first embodiment of the present application is shown.

[0023] Figure 5 A schematic view of the structure at C of the ball collecting assembly of the first embodiment of the present application is shown. Figure 3

[0024] A schematic view of the B-B sectional view of the ball collecting assembly of the first embodiment of the present application is shown. Figure 6 Figure 3 A schematic view of the C-C sectional view of the ball collecting assembly of the first embodiment of the present application is shown.

[0025] Figure 7 Figure 2 A schematic view of the B-B sectional view of the ball collecting assembly of the first embodiment of the present application is shown.

[0026] Figure 8 A schematic view of the C-C sectional view of the ball collecting assembly of the first embodiment of the present application is shown.​​​​Figure 7 A schematic diagram of the structure at point D of the ball-receiving assembly;

[0027] Figure 9 It shows Figure 1 A schematic diagram of the ball-feeding assembly of a tennis ball device;

[0028] Figure 10 A schematic diagram of the ball-feeding assembly according to Embodiment 2 of this application is shown.

[0029] The above figures include the following reference numerals:

[0030] 1. Tennis court entrance / exit; 2. Automatic access control system with QR code scanning; 3. Tennis court side net; 4. Small intelligent tennis training device; 5. Automatic ball collection system; 6. Integrated ball raising and serving device; 7. Automatic cleaning robot for tennis courts; 8. High-speed camera; 9. Display screen; 10. Ball throwing device; 11. Ball raising device; 12. Ball guide rail; 13. Folding ball collection trough bottom cloth; 14. Ball collection bottom cloth; 15. Tennis basket cart; 16. Low end of ball collection trough; 17. End of ball collection trough; 18. Inclined ball rolling plate; 19. Support leg; 20. Telescopic arm; 21. Fixing clip; 22. Bottom cloth fixing shaft; 23. Rotating shaft; 24. Inclined ball rolling plate end rod; 25. Sleeve 26. Inclined ball-rolling plate crossbar; 27. Rotating ear; 28. Fixed bracket; 29. ​​Traveling wheel; 30. Ball-receiving inclined plate in the middle of the ball-receiving trough; 41. Ball-feeding shell; 42. Rotating ball-throwing arm; 43. Rotating frame; 44. Electromagnetic coil; 46. Elastic element; 47. Elasticity adjuster; 48. First limiting part; 49. Second limiting part; 50. Second drive part; 60. Mounting seat; 67. Ball-dropping switching structure; 68. Second horizontal pipe section; 69. Second pipe body; 71. First connecting part; 72. Second connecting part; 73. Limiting connecting part; 74. Pivot shaft; 100. Practitioner; 200. Tennis racket; 300. Tennis ball. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] like Figures 1 to 8As shown, the smart tennis court in Embodiment 1 includes a tennis court fence assembly and a first tennis training device. The tennis court fence assembly includes a fence and an access control system (automatic access control system 2), with the access control system installed on the entrance / exit (tennis court entrance / exit 1) of the fence (tennis court side net 3). The first tennis training device is installed inside the fence (tennis court side net 3) and includes a first ball receiving assembly (automatic ball receiving system 5) and a first ball feeding assembly (integrated ball raising and serving device 6). The first ball receiving assembly delivers the tennis ball to the first ball feeding assembly, which then feeds the tennis ball to the trainee.

[0033] In this embodiment, the tennis court fence assembly is equipped with an access control system to prevent unauthorized personnel from entering and disrupting practice. When practicing, players hit the tennis ball; some balls are intercepted by the fence and collected by the first ball-collecting assembly, while others roll through the ball-rolling cloth to the ball-collecting base. The first ball-collecting assembly delivers the collected balls to the first ball-feeding assembly, which then provides the balls to the player. The player then hits the balls into the first tennis training device, and this process is repeated. This structure reduces the number of people retrieving and throwing balls, improving the tennis experience. This embodiment effectively solves the problem in existing technologies where tennis practice is wasteful of manpower and negatively impacts the player's experience. The smart tennis court also includes an automatic tennis court cleaning robot 7, a high-speed camera 8, a display screen 9, a ball-throwing device 10, and a ball-lifting device 11.

[0034] like Figure 1 As shown, in this embodiment, the first ball-collecting assembly includes a folding frame, a ball-collecting base cloth 14 (folding ball-collecting groove base cloth 13), and a ball-sliding structure. The ball-collecting base cloth is mounted on the folding frame, and the ball-sliding structure is mounted on the ball-collecting base cloth. The ball-blocking screen can be a display screen with sensors, for example, capable of judging factors such as the force of the hit and the point of impact. The folding frame, ball-collecting base cloth, and ball-sliding structure can be folded, making them easy to carry, convenient to use, and occupying less space. The ball-sliding structure includes a tilting ball-rolling plate 18 or a ball-sliding guide rail 12. The first ball-collecting assembly includes a tennis basket cart 15. The ball-sliding structure has a lower end 16 of the ball-collecting groove and a lower end 17 of the ball-collecting groove (the high and low positions of the ball-sliding structure).

[0035] like Figure 3As shown, in this embodiment, the folding frame includes a telescopic base rod (arc arm telescopic device 20) and a support frame (support leg 19). The ball-collecting base fabric includes a first ball-collecting fabric and a second ball-collecting fabric. The telescopic base rod is located on both sides of the ball-collecting base fabric. The first end of the telescopic base rod is close to the fence, and the second end of the telescopic base rod extends away from the fence. The first side of the first ball-collecting fabric is connected to the fence, and the second side of the first ball-collecting fabric is connected to the first side of the ball-sliding structure. The first side of the second ball-collecting fabric is connected to the second side of the ball-sliding structure, and the second side of the second ball-collecting fabric is connected to the first end of the support frame. The second end of the support frame is located on the supporting ground. The first ball-collecting assembly also includes a ball-rolling fabric, which includes a ball-rolling fabric body and support rods (inclined ball-rolling plate crossbars 26) located on both sides of the ball-rolling fabric body. The first end of the support rod is rotatably connected to the second end of the telescopic base rod, and the second end of the support rod is slidably connected to the first end of the support frame. When folding is required, the telescopic base rod is retracted, and the telescopic base rod, support frame, first ball-collecting fabric, and second ball-collecting fabric are folded together, occupying less space and making them easy to carry. Tennis training activities can be conducted by unfolding the telescopic base, support frame, first ball-collecting cloth, and second ball-collecting cloth. For example... Figure 5 As shown, the ball receiving assembly also includes a rotating shaft 23, an inclined ball plate end rod 24, and a sleeve 25, with the inclined ball plate end rod 24 movably inserted into the sleeve 25. Figure 6 As shown, the ball receiving assembly also includes components such as a rotating ear 27, a fixed bracket 28, a traveling wheel 29, and a ball-discharging inclined plate 30 in the middle of the ball receiving groove.

[0036] like Figure 3 and Figure 4 As shown, in this embodiment, the ball-skating structure includes a first ball-skating guide rail, a second ball-skating guide rail, a first connecting part 71, a second connecting part 72, and a limiting connecting part 73. The first connecting part 71 and the second connecting part 72 are rotatably connected via a pivot shaft 74. The first ball-skating guide rail is connected to the second side of the first ball-collecting cloth, and the second ball-skating guide rail is connected to the first side of the second ball-collecting cloth. The first ball-skating guide rail is connected to the first end of the first connecting part, the second end of the first connecting part is connected to the first end of the second connecting part, and the second end of the second connecting part is connected to the second ball-skating guide rail. The two ends of the limiting connecting part are respectively connected to the first connecting part and the second connecting part. The first ball-skating guide rail and the second ball-skating guide rail can be made of flexible material or material with a certain degree of hardness. In this embodiment, the first ball-skating guide rail and the second ball-skating guide rail are collectively referred to as ball-skating guide rail 12. The ball-skating guide rail 12 is made of material with a certain degree of hardness, so that the tennis ball will move along the guide rail. If the first ball-skating guide rail and the second ball-skating guide rail are made of flexible material, the resistance to the movement of the tennis ball is relatively large, and the resistance to the movement of the tennis ball is not as small as that of a track made of material with a certain degree of hardness.

[0037] It should be noted that the limiting connecting part is a flexible connecting object such as a rope, and the first connecting part and the second connecting part are both arc-shaped rigid connecting components. The first connecting part and the second connecting part are both multiple, and at least two first connecting parts are located on both sides, respectively. At least two second connecting parts are located on both sides, respectively. According to the situation, the intermediate first connecting part and the second connecting part are arranged or not. The first connecting part is connected with the first ball collecting cloth, and the second connecting part is also connectable with the second ball collecting cloth. The bottom of the first ball collecting cloth and the second ball collecting cloth is provided with a bottom cloth fixing shaft 22, and the first connecting part and the second connecting part are both provided with a fixed card 21, which is detachably clamped with the bottom cloth fixing shaft 22. The above structure is convenient to disassemble and assemble.

[0038] As shown in Figure 3 In the technical scheme of the embodiment, the first ball collecting assembly further comprises a ball passing structure. The side of the ball rolling structure away from the ball passing structure is higher than the side of the ball rolling structure close to the ball passing structure, and the ball rolling structure is gradually inclined. The above structure enables the tennis ball to move to the ball passing structure under the action of the gravity of the earth, thereby saving manpower and material resources.

[0039] As shown in Figure 9 In the technical scheme of the embodiment, the first ball feeding assembly is connected with the ball outlet of the first ball collecting assembly. The first ball feeding assembly can shoot the tennis ball away from the fence. The fence can be a ball blocking curtain set by human. The first ball feeding assembly is an elastic ball feeding assembly. The elastic ball feeding assembly comprises a ball feeding shell 41, a rotating ball throwing arm 42, a rotating frame 43, and a first driving part. The rotating frame 43 is installed in the ball feeding shell 41. The middle part of the rotating ball throwing arm 42 is rotatably connected with the rotating frame 43. The ball throwing end of the rotating ball throwing arm 42 is located on the side of the rotating frame 43 away from the ball throwing device 10. The first driving part cooperates with the force applying end of the rotating ball throwing arm 42, which is located on the side of the rotating frame 43 away from the ball throwing end. The arrangement of the elastic ball feeding assembly can save manual ball throwing. The ball feeding shell 41 can protect the internal components. The arrangement of the rotating ball throwing arm 42, the rotating frame 43, and the first driving part makes the ball throwing effect better and the simulation more realistic. The above description of the position refers to the cooperation part of the rotating frame 43 and the rotating ball throwing arm 42. The rotating frame 43 can be a support frame or a rotating shaft.

[0040] As shown in Figure 9As shown, in this embodiment, the first driving unit includes an electromagnetic coil 44, a ferromagnetic body, and an elastic element 46. The ferromagnetic body is fixed to the force-applying end, the electromagnetic coil 44 is fixed to the ball-feeding housing 41, and the first end of the elastic element 46 is connected to the force-applying end between the ferromagnetic body and the rotating frame 43. The second end of the elastic element 46 is connected to the ball-feeding housing 41. When the electromagnetic coil 44 is energized, it attracts the ferromagnetic body. When the electromagnetic coil 44 is de-energized, there is no mutual attraction between the electromagnetic coil 44 and the ferromagnetic body. At this time, the elastic element 46 applies an elastic force to the rotating ball-throwing arm 42, and the tennis ball 300 located at the ball-throwing end is suddenly thrown out, allowing the trainee to hit the tennis ball 300 for training. It should be noted that the elastic element 46 is a spring, and the spring is in a compressed state. The second end of the elastic element 46 is connected to the ball-feeding housing 41, which can be a direct or indirect connection. In this embodiment, the elastic ball-feeding assembly is located in the middle of the ball-throwing device 10 in the left-right direction, and the ball-blocking curtain is provided with a ball-throwing hole. As another feasible implementation, the elastic ball-feeding assembly can be set on the side of the ball-receiving assembly 20 closer to the trainee 100, and the trainee 100 holds the tennis racket 200 to hit the tennis ball 300, so that there is no need to set a ball-throwing hole on the ball-blocking curtain.

[0041] like Figure 9 As shown, in this embodiment, the first driving unit further includes a spring adjuster 47. The spring adjuster 47 includes an adjuster housing, a rotating shaft, and a pressing block. The adjuster housing is connected to the ball-feeding housing 41, and the pressing block is fixedly connected to the rotating shaft. The rotating shaft is rotatably fixed to the adjuster housing. The pressing block abuts against the second end of the elastic member 46, and the distance from the outer circumferential wall of the pressing block to the rotating shaft varies. The spring adjuster 47 can effectively change the speed, height, and force of the ball throw. It should be noted that the outer circumferential wall of the pressing block refers to the wall surface that abuts against the elastic member 46. As the rotating shaft rotates, the mating position between the pressing block and the elastic member 46 changes.

[0042] like Figure 9 As shown, in this embodiment, the ball-throwing end has a groove. The tennis ball 300 automatically slides into the groove, and the groove facilitates the positioning of the tennis ball 300.

[0043] like Figure 9 As shown in the technical solution of this embodiment, the elastic ball feeding assembly further includes a ball storage box and a ball dropping tube. The upper end of the ball dropping tube is connected to the ball storage box, and the lower end of the ball dropping tube is connected to the ball feeding housing 41. The ball storage box can accommodate multiple tennis balls 300 at the same time, and the ball dropping tube allows the tennis balls 300 to slide from the ball storage box into the ball feeding housing 41.

[0044] like Figure 9As shown, in this embodiment, the inner diameter of the ball-dropping tube is larger than the outer diameter of the tennis ball but less than twice the outer diameter of the tennis ball. This ensures that only one tennis ball (300mm diameter) can drop at a time.

[0045] like Figure 9 As shown, in this embodiment, the elastic ball-feeding assembly further includes a first limiting part 48, which is fixed to the inner wall of the ball-feeding housing 41. The rotating ball-throwing arm 42 has a ball-throwing state and a ball-ready state. When the rotating ball-throwing arm 42 is in the ball-throwing state, the distance between the lower end of the first limiting part 48 and the rotating ball-throwing arm 42 is less than the outer diameter of the tennis ball. When the rotating ball-throwing arm 42 is in the ball-ready state, the distance between the lower end of the first limiting part 48 and the rotating ball-throwing arm 42 is greater than the outer diameter of the tennis ball. The setting of the first limiting part 48 ensures that there is only one tennis ball 300 in the groove. According to the cooperation relationship between the first limiting part 48 and the rotating ball-throwing arm 42, after one tennis ball 300 is thrown out, another tennis ball 300 will slide into the groove.

[0046] like Figure 9 As shown, in this embodiment, the rotating ball-throwing arm 42 has a landing point located between the ball-throwing end and the rotation axis of the rotating ball-throwing arm 42, and the lower end of the first limiting part 48 is located between the landing point and the ball-throwing end. This ingenious structure effectively achieves the sequential output of tennis balls 300 into the groove.

[0047] like Figure 9 As shown, in this embodiment, the elastic ball-feeding assembly further includes a second limiting part 49. The second limiting part 49 is located on the rotating ball-throwing arm 42. When the rotating ball-throwing arm 42 is in the ball-throwing state, the second limiting part 49 is in the avoiding position of avoiding the lower end of the ball-dropping tube. When the rotating ball-throwing arm 42 is in the waiting-to-throw state, the second limiting part 49 is in the limiting position of the lower end of the ball-dropping tube. The setting of the second limiting part 49 allows the tennis balls 300 to slide into the ball-feeding housing 41 one by one from the ball-dropping tube, thus avoiding the jamming phenomenon between the tennis balls 300.

[0048] like Figure 9 As shown, in the technical solution of this embodiment, the second limiting part 49 is a limiting arm. The first end of the limiting arm is connected to the rotating ball-throwing arm 42, and the second end of the limiting arm extends downward away from the ball-dropping tube. The limiting arm has a simple structure, low processing cost, and is easy to use.

[0049] like Figure 9As shown, in this embodiment, the elastic ball-feeding assembly further includes a second drive unit 50 and a mounting base 60. The second drive unit 50 is fixed to the mounting unit, and the ball-feeding housing 41 is rotatably mounted on the mounting base 60. The second drive unit 50 can drive the mounting base 60 to rotate. The above structure expands the ball-throwing range; that is, in addition to throwing the tennis ball 300 directly in front, the elastic ball-feeding assembly can also throw the tennis ball diagonally forward, thus expanding the versatility of the tennis training device.

[0050] like Figure 9 As shown, in this embodiment, the second drive unit 50 includes a rotary motor and a first gear, and the elastic ball-feeding assembly also includes a second gear. The second gear is rotatably mounted on the mounting base 60, and the ball-feeding housing 41 is fixed to the second gear. The output end of the rotary motor is connected to the first gear, and the first gear meshes with the second gear. The above structure is compact, has high transmission accuracy, and the ejection range is fan-shaped.

[0051] like Figure 1 As shown in the technical solution of this embodiment, the smart tennis court also includes a second tennis training device (small intelligent tennis training device 4). The first tennis training device is located on one side of the center line inside the fence and is parallel to the center line of the tennis court. The second tennis training device is located inside the fence, and the first tennis training device is larger than the second tennis training device. The arrangement of the first and second tennis training devices allows multiple people to train simultaneously, thus maximizing the utilization of the tennis training court resources. It should be noted that the first tennis training device is located on the side away from the fence gate. The first tennis training device is relatively large and can be used for high-intensity training. The second tennis training device can be used for training beginners. The ball throwing device 10 can be set inside the fence at the end of the center line, so that it is also possible when two players are practicing rallies. The tennis court automatic cleaning robot 7 can pick up the balls.

[0052] like Figure 1 As shown, in this embodiment, there are multiple second tennis training devices, located on the sides of the first tennis training device and / or on the sides of the fence at both ends of the center line. This maximizes the use of the tennis training court space.

[0053] like Figure 1 As shown, in this embodiment, the second tennis training device includes a ball-blocking component, a second ball-collecting component, and a second ball-feeding component. The second ball-collecting component is arranged adjacent to the ball-blocking component. The second ball-collecting component delivers the tennis ball to the second ball-feeding component, which then feeds the tennis ball to the trainee. To make fuller use of the tennis training court, the second tennis training device can be understood as a smaller version of the first tennis training device. The ball-blocking component can include a ball-blocking curtain or a ball-blocking screen.

[0054] From the above, the smart tennis court includes all the facilities of the existing tennis court, in addition to: code scanning automatic access control, small intelligent tennis training device, tennis court automatic ball collection system, tennis court special sweeping robot, high-definition camera, display screen and AI intelligent controller, etc. Under the control of AI intelligence, each system works collaboratively under the principle of decentralization and unity, ensuring the original functions of the tennis court and adding new expansion functions, improving the utilization efficiency and experience of the tennis court.

[0055] The code scanning automatic access control includes a door, an electronic door lock and a code scanner. The code scanner recognizes the member's two-dimensional code or scans the code to log in, and the electronic lock automatically opens, allowing the exerciser to push the door open and enter or leave the tennis court.

[0056] The small intelligent tennis training device is a small size movable tennis ball serving and hitting training device developed by the company. The principle and structure of the device are patented by the company, and will not be described in detail.

[0057] The tennis court automatic ball collection system is composed of a folding ball collection groove, a middle ball outlet inclined plate, an inclined ball rolling plate, a curved arm telescopic mechanism, a tennis ball lifting device and a ball serving device.

[0058] The folding ball collection groove is composed of four trapezoidal groove cloths and two ball rolling guide rails. It is arranged on both sides of the tennis ball lifting device and the ball serving device. The ball rolling guide rails are high at both ends and low in the middle, with a slope of 3%-10%. Two guide rails are connected with two trapezoidal groove cloths respectively. One end of one of the groove cloths is connected with the end net of the tennis court, and the other end of the other groove cloth is connected with the inclined ball rolling plate. The two ends of the ball collection groove are covered with foldable cloth.

[0059] The inclined ball rolling plate is also a rectangular canvas with four edge shaft sleeve structures, which is tensioned and flattened by a hard shaft rod. One side of the inclined ball rolling plate is placed on the ground, and the other side is placed outside the folding ball collection groove, with an inclination angle of 30°-60°.

[0060] Below the two ball rolling guide rails, an arc-shaped arm is fixed at regular intervals. The lower ends of the two arc-shaped arms have a hole or pipe of the same diameter, which is fixed by a shaft pin. The two arc-shaped arms can rotate around the shaft pin.

[0061] A rope hole is provided in the middle of each arc-shaped arm, and a positioning rope or belt is connected between the two holes to keep the distance between the two guide rails constant, which is less than the diameter of a tennis ball, about 30-50mm.

[0062] An arc-shaped arm is fixed at regular intervals on the outside of each guide rail. The groove cloths on both sides are clamped in the arc-shaped arm through the shaft sleeve structure to fix them.

[0063] The other side of the groove bottom cloth outside the ball collecting groove is also a shaft sleeve structure, and the two ends or the middle of the shaft are provided with a support leg at a certain distance (such as 2 meters). The lower end of the support leg is provided with a walking wheel supported on the ground, and under the action of an external force, the support leg can be pulled outward to drive the folding ball collecting groove to open. The reverse walking is to fold the ball collecting groove.

[0064] The outer side of the above-mentioned shaft is provided with a vertical sleeve at a certain distance (such as 2 meters) and the two ends are inclined upward. The shaft rod at a certain distance or the middle of the inclined rolling ball plate passes through the sleeve and can slide back and forth in the sleeve.

[0065] The lower side of the inclined rolling ball plate close to the ground is provided with a rotating ear, and the rotating ear is connected with a support. The lower part of the support is provided with a walking wheel, and one side of the support is connected with the curved arm of the telescopic mechanism.

[0066] The curved arm telescopic mechanism is a telescopic mechanism similar to the curved arm telescopic sunshade. The tent cloth on the sunshade is replaced by a plurality of tight tent straight ropes or belts. This is prior art and will not be described in detail. One end is fixed on the end net of the tennis court, and the other end is connected with the lower support of the inclined rolling ball plate. The curved arm telescopic mechanism drives the folding ball collecting groove support leg and the inclined rolling ball plate to be pulled outward or to be retracted inward.

[0067] The ball outlet inclined plate in the middle of the ball collecting groove is a hard plate with a length of about 600 mm, which is the sum of the width of the tennis ball lifting device and the ball launching device. One side is fixed on the lower edge of the ball inlet of the tennis ball lifting device, and the other side extends outward and upward at an angle of 100-150 degrees. The extension width is 100-150 mm, and the edge is further folded upward, and the folded edge is about 50 mm high. The end of the ball launching device is also inclined to the other end, with a slope of 100-150 degrees. The front section of the ball inlet of the tennis ball lifting device remains horizontal.

[0068] The tennis ball lifting device adopts a motor-driven belt with a baffle to lift the tennis ball. Its structure is the same as the ball lifting device of the invention patent "Intelligent tennis training device" applied by the company at the same time, but a three-way port is additionally provided on the front side of the ball outlet and ball rolling pipe. A short ball rolling pipe is connected to the three-way port. A lever is provided at the three-way port, and under the action of the electric actuator, the lever can be pushed to the two ball outlet positions of the three-way port respectively, and one ball outlet is blocked, so that the tennis ball can enter the other ball outlet. The lifted tennis ball can be rolled into the ball launching device or from the front rolling pipe according to different choices. The ball is thrown into the tennis basket placed in the middle of the two folding ball collecting devices for centralized tennis ball collection, which is convenient for hand throwing.

[0069] The ball launching device adopts two rapidly rotating wheels to squeeze out the existing ball launching machine product, or adopts the ball launching system of the invention patent "Intelligent tennis training device" applied by the company at the same time. Herein, both are not described.

[0070] Two high-definition cameras are respectively installed on the top of the two ends of the middle net of the tennis court or on the two side nets or the two end nets of the tennis court, and the captured image data is transmitted to an AI intelligent controller through a data line.

[0071] A display screen is hung on the side net of the tennis court, and the display screen can be a liquid crystal display screen and an LED display screen. The display screen can display the landing position of the tennis ball and the referee result, and the display screen is connected to the AI intelligent controller through a data line.

[0072] The AI intelligent controller is integrated in a small control box and can be hung on the side net at the entrance of the tennis court for convenient operation. The control box has a control mainboard and a plurality of selection buttons, and is also provided with a network device. The related data of the tennis court can be timely uploaded to a cloud platform through the network device, processed by a cloud platform server, and transmitted to a mobile terminal. The data can be viewed, downloaded and operated through an APP.

[0073] The tennis court special sweeping robot is improved on the basis of the existing commercial sweeping robot. The tennis court planar size is built in, and a special walking program is set to ensure that the entire tennis court is swept once and returns to charge after sweeping.

[0074] As shown in Figure 10 The technical scheme of the second embodiment is different from that of the first embodiment in that the first ball feeding assembly comprises a first pipe body and a second pipe body. The first pipe body is horizontally inclined, the first end of the first pipe body is higher than the second end of the first pipe body, and the first end of the first pipe body has a ball inlet. The second pipe body is vertically arranged, the first end of the second pipe body is connected with the first pipe body, and the second end of the second pipe body has a ball outlet. The last end of the second pipe body is a short circular arc elbow to simulate the trajectory of the coach throwing the ball, so that the ball is hit by the practitioner after bouncing on the ground; and / or the last end of the second pipe body is vertically downward. Two second pipe bodies are arranged at the left side of the practitioner and the right side of the practitioner, respectively.

[0075] In the technical scheme of the second embodiment, the first pipe body is horizontally inclined, so that the tennis ball rolls from the first pipe body to the second pipe body under the action of gravity, and then falls from the ball outlet of the second pipe body. In this way, the ball can be fed by the accompanying trainer or by the practitioner himself / herself. The above structure can greatly improve the experience of the tennis ball practitioner during the ball practice.

[0076] The first pipe body includes a first horizontal pipe segment and a second horizontal pipe segment 68, a first end of the first horizontal pipe segment is a ball inlet, a second end of the first horizontal pipe segment is connected with a first end of the second horizontal pipe segment 68, the first horizontal pipe segment extends from the ball blocking net to the direction of the exerciser, the second horizontal pipe segment 68 extends along the width direction of the ball blocking net, and the second pipe body 69 is arranged on the second horizontal pipe segment 68.

[0077] By switching of the left and right side ball dropping switching structures 67, the predetermined ball dropping pipe 69 can be entered.

[0078] In the technical scheme of the embodiment, the second pipe body 69 is a telescopic structure. The second pipe body 69 is a telescopic structure, so that the height of the tennis ball falling to the ground can be adjusted according to needs, for example, the height of the exerciser is different, and the height can be adjusted according to needs or adjusted according to the difference between adults and children.

[0079] In the technical scheme of the embodiment, the second pipe body 69 includes a plurality of second pipe body segments, and adjacent second pipe body segments are telescopically connected. The above structure has low processing cost and is convenient to arrange. Taking three second pipe body segments as an example, the uppermost second pipe body segment is larger than the middle second pipe body segment, and the middle second pipe body segment is larger than the lower second pipe body segment, that is, the three second pipe body segments are in a nested structure, and adjacent second pipe body segments are telescopically connected in a sleeve structure, which is mature in the prior art and will not be described here.

[0080] In the technical scheme of the embodiment, the ball feeding assembly further includes a damping structure arranged in the second pipe body 69. The damping structure effectively ensures that the tennis ball can bounce to a reasonable height after falling to the ground, which is convenient for the exerciser to hit. It should be noted that the damping structure cooperates with the telescopic structure of the second pipe body 69, which further facilitates the exerciser to control the falling speed of the tennis ball and the bouncing height.

[0081] In the technical scheme of the embodiment, the damping structure is arranged in the lowermost second pipe body segment, and the damping structure includes a plurality of spring sheets. Each spring sheet is a curved structure, and the minimum diameter between the spring sheets is smaller than the outer diameter of the tennis ball. The tennis ball presses the spring sheets, and the tennis ball can pass through the through holes between the spring sheets. The above structure has low processing cost and is convenient to arrange and disassemble. As another embodiment, the damping structure can be an elastic net. The elastic net has a through hole in the middle, and the inner diameter of the through hole is smaller than the outer diameter of the tennis ball. The tennis ball presses the through hole, and the tennis ball can pass through the through hole. Whether it is a spring sheet or an elastic net sheet, its function is to reduce the falling speed of the tennis ball.

[0082] In the technical scheme of the embodiment, the first pipe body comprises a first horizontal pipe section and a second horizontal pipe section, a first end of the first horizontal pipe section is a ball inlet, a second end of the first horizontal pipe section is in communication with a first end of the second horizontal pipe section, the first horizontal pipe section extends from the ball blocking net to the direction of the practitioner, the second horizontal pipe section extends along the width direction of the ball blocking net, and the second pipe body is arranged on the second horizontal pipe section. The combination of the first horizontal pipe section and the second horizontal pipe section is more convenient for the practice of the practitioner, and further facilitates the arrangement of the falling balls. For example, when multiple practitioners (practice personnel) practice, two second pipe bodies can be arranged on the second horizontal pipe section according to the length of the second horizontal pipe section, so that the practitioners can practice left and right ball hitting respectively.

[0083] The last end of the second pipe body is a short circular arc elbow pipe, so as to simulate the trajectory of the hand throwing ball of the coach, so that the practitioner hits the ball after the ball falls and bounces. Or the last end of the second pipe body is vertically downward, so as to facilitate the practice of free fall and bounce to hit the ball. The last end of the second pipe body can also be a replaceable short circular arc elbow pipe and a vertically downward short pipe.

[0084] In the technical scheme of the embodiment, two second pipe bodies are arranged, and the two second pipe bodies are respectively arranged at the left side of the practitioner and the right side of the practitioner. In this way, the practitioner can practice the left and right hands.

[0085] It should be noted that, in this document, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0086] The above description is merely one specific implementation of the application, which enables those skilled in the art to understand or implement the application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A smart tennis court, characterized in that, The tennis court fence assembly comprises a fence and a gate installed on an access door of the fence. The first tennis training device is installed in the fence and comprises a first ball collecting assembly and a first ball feeding assembly. The first ball collecting assembly sends the tennis balls to the first ball feeding assembly. The first ball collecting assembly comprises a folding frame, a ball collecting bottom cloth and a ball rolling structure. The folding frame comprises a telescopic bottom rod and a supporting stand. The telescopic bottom rod is located on both sides of the ball collecting bottom cloth.

2. The smart tennis court of claim 1, wherein, The first ball collecting assembly further comprises a ball rolling cloth.

3. The smart tennis court according to claim 1 or 2, characterized in that, The first ball collecting assembly further comprises a ball feeding structure. The first ball feeding assembly is connected to the ball outlet of the first ball collecting assembly. The first ball feeding assembly can shoot the tennis balls away from the first tennis training device.

4. The smart tennis court according to claim 1 or 2, wherein, ​ 5. The smart tennis court of claim 1, wherein, The smart tennis court further comprises a second tennis training device, the first tennis training device is located at one side of the center line in the fence and is parallel to the center line, and the second tennis training device is located in the fence.

6. The smart tennis court of claim 5, wherein, The second tennis training device is multiple, and multiple second tennis training devices are located at the side of the first tennis training device and / or at the side of the fence at both ends of the center line.

7. The smart tennis court of claim 5, wherein, The second tennis training device comprises a ball blocking assembly, a second ball collecting assembly and a second ball feeding assembly, the second ball collecting assembly is arranged adjacent to the ball blocking assembly, the second ball collecting assembly sends the tennis ball to the second ball feeding assembly, and the second ball feeding assembly feeds the tennis ball to the training personnel.

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