Basketball training ball collecting and serving device

Abstract

The application relates to a ball collecting and shooting device for basketball training, which comprises a mounting frame, a kinetic energy capturing mechanism, a lever ball catching and shooting mechanism and an elastic reset mechanism. The kinetic energy capturing mechanism comprises a receiving piece, a transmission piece, a force applying piece and a locking trigger piece. The lever ball catching and shooting mechanism comprises a lever rotating shaft rotatingly connected in the mounting frame, a long arm and a short arm fixedly connected on both sides of the lever rotating shaft. The application has the advantages that the kinetic energy capturing mechanism, the lever ball catching and shooting mechanism and the elastic reset mechanism are arranged, the kinetic energy and the gravity potential energy of the falling basketball after shooting by a user are utilized to drive the lever rotating shaft to rotate and realize shooting, the kinetic energy and the gravity potential energy of the basketball are efficiently converted into shooting kinetic energy, the shooting strength is greatly improved, the shooting strength and distance are effectively improved, the shooting demand of long-distance shooting training can be met, the efficiency of basketball training is greatly improved, and the complicated operation of manual ball picking and ball delivering is reduced.

Description

Technical Field

[0001] This invention relates to the field of sports equipment technology, and in particular to a ball collection and serving device for basketball training. Background Technology

[0002] In basketball training, automatic basketball retrieval and serving equipment has been widely used to improve training efficiency and reduce the tedious manual ball retrieval. Currently, existing automatic basketball serving equipment is mainly divided into two categories: electric friction wheel driven serving and purely gravity passive serving.

[0003] In existing technologies, there is a type of purely mechanical passive ball-serving device that utilizes the gravitational potential energy of a falling basketball to achieve ball serving. This requires no power supply, is simple to control, and is flexible in terms of venue. It avoids the problems of electrically controlled ball-serving machines that rely on power, making them unsuitable for outdoor practice and costly. For example, CN223846197U discloses an automatic ball-dropping mechanism and device, which uses a non-powered ball-serving structure where the falling basketball impacts a pendulum, driving a pendulum rod to swing and converting gravitational potential energy into kinetic energy for ball serving, thus achieving automatic ball dropping and serving. Another example is the basketball ball-serving device CN201668934U, which stores energy through a spring and then releases the spring to strike the ball for serving. However, this type of purely gravity-driven passive ball-serving scheme has low serving efficiency. Its core drawback lies in the severely insufficient serving power and distance: relying solely on the gravitational potential energy of the falling basketball to impact the serving mechanism limits the basketball's impact force and results in a short serving distance, making it difficult to meet the needs of long-distance shooting training.

[0004] In summary, while existing purely mechanical passive ball-serving devices that utilize the gravitational potential energy of a falling basketball do not require power and are flexible in terms of playing area, they suffer from low serving efficiency and insufficient power, making it difficult to meet the needs of long-distance shooting training. Summary of the Invention

[0005] This invention provides a ball-collecting and serving device for basketball training, which can solve the problems of low serving efficiency and insufficient power of existing purely mechanical passive serving devices, making it difficult to meet the needs of long-distance shooting training.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a ball collection and serving device for basketball training, including a mounting frame, and further including a kinetic energy capture mechanism, a lever ball receiving and serving mechanism, and an elastic reset mechanism; The kinetic energy capture mechanism includes: a receiving component for receiving a basketball thrown by the user and converting the kinetic energy of the basketball into the kinetic energy of the receiving component when the basketball lands on it; a transmission component, disposed on the mounting frame, for transmitting the kinetic energy of the receiving component to the force-applying component; a force-applying component, disposed on the mounting frame, for temporarily storing the kinetic energy transmitted by the transmission component and applying the kinetic energy to the lever receiving mechanism after the locking trigger releases the locking; and a locking trigger, rotatably connected to the mounting frame, for keeping the force-applying component in a locked energy-storing state and releasing the locking when the basketball falls to the lever receiving mechanism, so that the release action of the force-applying component and the gravity impact action of the basketball synchronously drive the lever receiving mechanism. The lever receiving and serving mechanism includes a lever shaft rotatably connected within the mounting frame, a receiving long arm and a serving short arm fixedly connected to both sides of the lever shaft, with the receiving long arm positioned below the receiving component; The elastic reset mechanism is located between the lever receiving and serving mechanism and the mounting frame, and is used to drive the lever receiving and serving mechanism to reset.

[0007] Preferably, the receiving component includes a ball-collecting frame disposed on the mounting frame and a receiving plate rotatably connected within the ball-collecting frame, wherein a first coil spring is disposed between the receiving plate and the ball-collecting frame.

[0008] Preferably, the force-applying component includes: A ratchet shaft is rotatably connected to the mounting frame, and a ratchet is fixedly connected to the ratchet shaft. The ratchet is used to rotate the lever receiving ball mechanism, and to transfer the kinetic energy transmitted to the ratchet shaft to the lever receiving ball mechanism. The second spring, located between the ratchet shaft and the mounting frame, is used to temporarily store the kinetic energy transmitted by the transmission component when the locking trigger locks the ratchet.

[0009] Preferably, the transmission component includes a transmission rod rotatably connected to the mounting frame, the upper end of the transmission rod being connected to the receiving plate via a bevel gear set, the bevel gear set including two meshing bevel gears, and the bevel gears of the bevel gear set being connected to the rotating shaft of the bearing plate via a one-way bearing.

[0010] Preferably, the locking trigger includes a rotating frame and a pawl. The rotating frame is rotatably connected to the mounting frame, with one end positioned between the ball collecting frame and the lever ball receiving mechanism, and the other end positioned above the ratchet. The pawl is fixedly connected to the end of the rotating frame above the ratchet and is used to lock the ratchet, so that the ratchet can only rotate in one direction.

[0011] Preferably, the receiving component further includes a vertical ball drop channel disposed between the lever ball receiving mechanism and the ball collecting frame, the height of which is 1.5m to 2.5m.

[0012] Preferably, the elastic reset mechanism includes a sleeve rotatably connected to the mounting frame and an insert rod rotatably connected below the ball-receiving long arm. The insert rod is inserted into the sleeve, and a spring is provided between the insert rod and the sleeve.

[0013] Preferably, the length of the receiving long arm is 4 to 5 times the length of the serving short arm; the angle between the serving short arm and the long arm of the serving stick is 90 to 180°, with the lever pivot as the vertex of the angle.

[0014] Preferably, the lever shaft is rotatably connected to the mounting frame via a rolling bearing, and the ball-receiving long arm is provided with a weight-reducing hole.

[0015] Preferably, it also includes a guide plate for guiding the direction of the basketball serve, the guide plate being rotatably connected to the mounting frame via a first damping shaft.

[0016] Compared to existing technologies, this invention incorporates a kinetic energy capture mechanism, a lever-type ball-receiving mechanism, and an elastic reset mechanism. The kinetic energy capture mechanism captures the kinetic energy of the basketball thrown by the user through a receiving component and transmits this energy to a force-applying component via a transmission component. A locking trigger temporarily locks the force-applying component, storing the kinetic energy. Simultaneously, as the basketball falls from the receiving component, the falling motion causes the locking trigger to move, unlocking the force-applying component. When the basketball lands on the lever-type ball-receiving mechanism, the force-applying component simultaneously applies force to the mechanism, allowing it to simultaneously acquire the kinetic energy captured by the receiving component and the kinetic energy converted from the gravitational potential energy during its fall from the receiving component. The lever-type ball-receiving mechanism links the receiving arm and the serving arm via a lever shaft, utilizing the kinetic energy of the basketball after the user's shot and the gravitational potential energy during its fall to drive the lever shaft to rotate and achieve the serve. This efficient conversion of the basketball's kinetic energy and gravitational potential energy into the serving kinetic energy significantly increases the serving power. It effectively improves the power and distance of the serve, meeting the serving needs of long-distance shooting training. It takes into account the two core requirements of not relying on additional power supply and being able to achieve long-distance serving, greatly improving the efficiency of basketball training and reducing the tedious operation of manually picking up and passing the ball. Attached Figure Description

[0017] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a schematic diagram of the second perspective structure of the present invention; Figure 3 This is a schematic diagram of the structure of the ball-collecting frame of the present invention; Figure 4 This is a schematic diagram of the structure at the ratchet shaft of the present invention; Figure 5 This is a schematic diagram of the first working state structure of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point A; Figure 7 This is a schematic diagram of the second working state structure of the present invention; Figure 8 This is a schematic diagram of the third working state structure of the present invention; Figure 9 This is a schematic diagram of the lever receiving ball mechanism of the present invention; Figure 10 This is a schematic diagram of a structure according to an embodiment of the present invention.

[0018] In the diagram: 1. Mounting frame; 2. Vertical ball drop channel; 3. Ball collection frame; 4. Lever shaft; 5. Long arm for receiving the ball; 501. Spacer strip; 6. Short arm for serving the ball; 7. Spring; 701. Sleeve; 702. Insert rod; 8. Guide plate; 9. Ball blocking curtain; 10. First basketball; 11. Second basketball; 12. First damping shaft; 13. Receiving plate; 14. Transmission rod; 15. Mounting seat; 16. Brake wheel; 17. Second damping shaft; 18. Ratchet shaft; 19. Ratchet; 20. Transmission frame; 21. Pawl; 22. Bevel gear set; 23. Worm gear assembly; 24. One-way bearing; 25. First coil spring; 26. Second coil spring. Detailed Implementation

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] like Figures 1 to 5 As shown, the present invention provides a ball-collecting and serving device for basketball training, including a mounting frame 1, and further including a kinetic energy capture mechanism, a lever ball-receiving mechanism, and an elastic reset mechanism.

[0021] The kinetic energy capture mechanism includes: a receiving component for receiving a basketball thrown by the user and converting the kinetic energy of the basketball into the kinetic energy of the receiving component when the basketball lands on it; a transmission component, disposed on the mounting frame 1, for transmitting the kinetic energy of the receiving component to the force-applying component; a force-applying component, disposed on the mounting frame 1, for temporarily storing the kinetic energy transmitted by the transmission component and applying the kinetic energy to the lever receiving and serving mechanism after the locking trigger component releases its lock; and a locking trigger component, rotatably connected to the mounting frame 1, for keeping the force-applying component in a locked energy-storage state and releasing the lock when the basketball falls to the lever receiving and serving mechanism, so that the release action of the force-applying component and the gravity impact action of the basketball synchronously drive the lever receiving and serving mechanism. The lever receiving and serving mechanism includes a lever shaft 4 rotatably connected in the mounting frame 1, a receiving long arm 5 and a serving short arm 6 fixedly connected on both sides of the lever shaft 4, and the receiving long arm 5 is located below the receiving component; The elastic reset mechanism is located between the lever receiving and serving mechanism and the mounting frame 1, and is used to drive the lever receiving and serving mechanism to reset.

[0022] Specifically, mounting frame 1 serves as the overall support foundation and installation carrier for the equipment, housing all functional components such as the kinetic energy capture mechanism, lever ball receiving mechanism, and elastic reset mechanism. This ensures the relative stability of each mechanism and enables coordinated action. Simultaneously, it provides installation points for the connection between the equipment and the basketball hoop and the ground, guaranteeing the overall structural stability of the equipment. The dimensions of mounting frame 1 must be suitable for the confined space under the basket, with a compact overall structure and sufficient margin for movement of each mechanism to prevent interference between the lever ball receiving mechanism and the frame during rotation. Precise positioning of each component's installation points is crucial, especially the mounting base for lever shaft 4, which must ensure both horizontal and vertical alignment to guarantee smooth lever rotation. High-strength, lightweight metal materials, such as aluminum alloy profiles and cold-rolled steel plates, are used, balancing structural strength (withstanding the impact of the basketball and repeated loads from mechanism rotation) with lightweight design (facilitating handling and installation). Cold-rolled steel plates undergo galvanizing and powder coating treatment, while aluminum alloy profiles are anodized to improve outdoor corrosion resistance and prevent rain and dust erosion.

[0023] The receiving component directly receives the basketball entering the net, converting the horizontal and oblique impact kinetic energy into rotational kinetic energy; it guides the basketball to fall in a directional manner, preventing bounce and displacement, ensuring maximum capture of kinetic energy. It must be located directly below the basket, within the ball collection area; it must rotate flexibly and provide good impact cushioning; and it must not obstruct the subsequent descent of the basketball. The receiving component is a receiving plate 13, rotatably connected within the ball collection frame 3, with a first coiled spring 25 between it and the ball collection frame 3 for cushioning and resetting; alternatively, it can be a rolling guide wheel assembly, where the basketball, after entering the net, drives the rollers to rotate, converting kinetic energy into rotational kinetic energy.

[0024] The transmission component transfers kinetic energy from the receiving component to the force-applying component, achieving steering, acceleration, and self-locking, adapting to the confined space under the basket. It prevents the backflow and leakage of stored kinetic energy. The transmission is smooth and without significant loss; it has unidirectional transmission or self-locking capabilities; and it does not interfere with the basketball's falling path. The transmission component is a transmission rod 14, with its upper end connected to the receiving plate 13 via a bevel gear set 22, and its lower end connected to the ratchet shaft 18 via a worm gear assembly 23; alternatively, it can be a chain or sprocket transmission assembly, where the rotation of the receiving plate 13 drives the sprocket, transferring kinetic energy to the force-applying component.

[0025] The force-applying component temporarily stores the kinetic energy of the basketball entering the net (converting it into elastic potential energy), which is released instantaneously upon unlocking, driving the lever receiving and serving mechanism to rotate; this force is simultaneously superimposed with the basketball's gravitational potential energy. The energy storage is stable and does not release on its own; the unlocking response is fast and the force is applied promptly; and the position is matched with the lever mechanism. The force-applying component includes a ratchet shaft 18, a ratchet 19, and a second coiled spring 26; the ratchet 19 is used to actuate the lever, and the second coiled spring 26 stores energy, maintaining the stored force when locked; alternatively, a spring-loaded spring can be used in conjunction with a drive shaft assembly, where the spring absorbs kinetic energy, and the drive shaft rotates to actuate the lever upon unlocking.

[0026] The locking trigger locks the force-applying component, maintaining its energy storage state; it automatically unlocks when the basketball falls, ensuring complete synchronization between kinetic energy release and the basketball's landing. The locking is reliable and non-slipping; the trigger is sensitive and without delay; and it automatically resets after unlocking. The locking trigger is a rotating frame 20 working with a pawl 21. When the basketball falls, it presses down on one end of the rotating frame, causing the pawl 21 to lift and unlock the ratchet 19; or it is a swinging plate working with a push rod. When the basketball falls and hits the push rod, the plate disengages and unlocks the force-applying component.

[0027] The lever shaft 4, serving as the rotation center of the lever receiving and serving mechanism, enables synchronous linkage between the receiving long arm 5 and the serving short arm 6. It converts the impact force of the falling basketball on the receiving long arm 5 into the kinetic energy of the serving short arm 6, making it a core component for force transmission. Simultaneously, it provides stable rotational support for both arms, ensuring efficient torque transmission. After installation, the lever shaft 4 must rotate smoothly without jamming or loosening. The shaft axis must remain horizontal to ensure even force distribution on the long and short arms and prevent unilateral wear. The shaft's installation position must be precise, ensuring the receiving long arm 5 is aligned with the outlet of the ball collection frame 3, and the serving short arm 6 is aligned with the serving guide mechanism, achieving a seamless trajectory connection between "receiving the ball – striking the ball – guiding the ball." Using 45# steel and stainless steel shafts provides high strength and rigidity, capable of withstanding repeated impact loads and torsional forces, and is not easily bent or deformed. Stainless steel shafts can be used directly outdoors, while 45# steel requires quenching and chrome plating to improve hardness and corrosion resistance.

[0028] The long arm 5 catches the basketball falling from the ball-collecting mechanism under the basket, converting the basketball's gravitational potential energy and falling impact force into a rotational torque on the lever shaft 4, providing power for the short arm 6's striking action. Simultaneously, it serves as the connecting carrier for the elastic reset mechanism, working with the spring 7 to store energy and reset. The upper surface of the arm needs anti-slip and cushioning treatment to prevent the basketball from slipping on the arm and ensure the accuracy of the impact point. The connection with the lever shaft 4 must be rigidly fixed (such as by welding or keying) to ensure lossless torque transmission. It is made of the same material as the lever shaft 4, using 45# steel or stainless steel; for a lightweight design, aluminum alloy profiles can be used. Silicone or rubber cushioning pads can be attached to the upper surface of the arm to improve contact stability with the basketball. It should be noted that to prevent the basketball from falling off the rear end of the long arm 5 during rotation, a baffle 501 can be added to the rear end to prevent the basketball from falling.

[0029] The short arm 6, acting in conjunction with the lever shaft 4, generates instantaneous kinetic energy for the ball, directly applying it to the bottom or side of the basketball. This propels the basketball forward and transfers it to the ball-launching guide mechanism, thus launching the ball. It is the final actuator that converts torque into the kinetic energy of the basketball. Its connection to the lever shaft must be rigidly fixed to ensure lossless torque transmission and precise, powerful striking action. High-strength, rigid materials, such as 45# steel and stainless steel, are used to prevent bending or deformation during impact, ensuring efficient energy transfer. The surface of the striking end can be covered with a flexible buffer layer such as silicone or rubber to prevent damage to the basketball's surface and to increase contact friction, preventing slippage.

[0030] Since the basketball needs to roll from the receiving arm (long arm 5) to the serving arm (short arm 6), both arms should have a certain width to ensure smooth rolling between them. Both arms can be plate-like structures with an arc-shaped groove in the middle for the basketball to slide.

[0031] The elastic reset mechanism has both energy storage and reset functions. Specifically, when the basketball impacts the receiving arm 5, the lever shaft 4 rotates and compresses the elastic reset mechanism, converting some of the gravitational potential energy into the elastic potential energy of the elastic reset mechanism. During the impact, the elastic potential energy is released by superimposing the lever torque, increasing the serving force and kinetic energy. After the impact, the elastic restoring force of the elastic reset mechanism drives the lever receiving mechanism to quickly reset to its initial position, and causes the basketball on the receiving arm 5 to roll towards the serving arm 6, preparing for the next receiving action and ensuring the continuous working capability of the equipment. The elastic reset mechanism needs to be positioned appropriately between the lever receiving and serving mechanism and the mounting frame 1, preferably connected below the receiving long arm 5. Utilizing the lever arm advantage of the long arm, it achieves rapid reset with a relatively small elastic force, without offsetting the impact kinetic energy. The elastic force of the reset mechanism must match the impact load of the basketball; excessive force can lead to overly rapid reset and impact with the frame, while insufficient force results in slow reset, affecting continuous serving efficiency. The elastic reset mechanism needs to be rotatably connected to the lever and mounting frame 1 to prevent twisting or bending, ensuring that the extension / retraction direction of the elastic reset mechanism is consistent with the rotation direction of the lever. Cylindrical helical compression springs made of carbon spring steel or stainless steel spring steel are used. Carbon spring steel offers good elasticity and low cost, while stainless steel spring steel has strong corrosion resistance, making it suitable for outdoor use. The surface of the elastic reset mechanism needs to be phosphated and powder-coated to improve rust resistance. The elastic reset mechanism can employ a spring positioned between the mounting frame 1 and the receiving long arm 5, or a coil spring positioned between the mounting frame 1 and the lever shaft 4, among other structures.

[0032] The specific working principle is as follows: 1. Kinetic Energy Capture Phase: After the user throws the second basketball 11 into the net, the second basketball 11 first impacts the receiving component of the kinetic energy capture mechanism. The receiving component converts the impact kinetic energy of the second basketball 11 into its own rotational kinetic energy at the moment of impact, and then stably transmits this kinetic energy to the force-applying component through the transmission component. The force-applying component converts the kinetic energy into elastic potential energy for temporary storage; at the same time, the locking trigger component locks the force-applying component, keeping the energy in the stored state and preventing premature release.

[0033] 2. Synchronous Trigger Unlocking Phase: After capturing kinetic energy, the second basketball 11 continues to fall from the receiving part towards the long arm 5 of the lever receiving and serving mechanism. During the descent of the second basketball 11, the second basketball 11 itself presses against the locking trigger, causing the locking trigger to activate and release the locking of the force-applying part.

[0034] 3. Dual-energy superposition serving phase: After the force-applying component is unlocked, the stored elastic potential energy is released instantaneously, applying rotational force to the lever receiving and serving mechanism. At the same time, the second basketball 11 lands precisely on the receiving long arm 5, and its own gravitational potential energy and falling impact force also act on the lever. The two forces are superimposed synchronously, jointly driving the lever shaft 4 to rotate at high speed. Utilizing the torque amplification relationship between the receiving long arm 5 and the serving short arm 6, the superimposed force is amplified many times over, enabling the serving short arm 6 to strike the first basketball 10 with high speed and high power, achieving a long-distance, high-power serve.

[0035] 4. Reset and Continuous Working Phase: After the ball-hitting and serving action is completed, the elastic restoring force of the elastic reset mechanism drives the receiving long arm 5 to rotate in the opposite direction, and the lever shaft 4 synchronously links with the serving short arm 6 to reset to the initial horizontal position. Then, the second basketball 11 rolls from the receiving long arm 5 to the serving short arm 6, becoming the first basketball 10 in the next cycle, waiting for the next second basketball 11 to fall, realizing the automatic reset of the lever receiving and serving mechanism; the whole process is without manual intervention, and the various mechanisms are linked in a cycle to complete the continuous automated workflow of "ball collection → energy storage → triggering → serving → reset", realizing the uninterrupted automatic pickup and serving of basketballs entering the net.

[0036] like Figures 1 to 3 As shown, in order to achieve stable capture of the kinetic energy of the basketball entering the net, buffer against rebound, and automatic reset of the receiving plate, so as to provide a reliable foundation for subsequent kinetic energy transfer and storage, preferably, the receiving component includes a ball-collecting frame 3 set on the mounting frame 1 and a receiving plate 13 rotatably connected in the ball-collecting frame 3, and a first coil spring 25 is provided between the receiving plate 13 and the ball-collecting frame 3.

[0037] Specifically, by setting a rotatable receiving plate 13 inside the ball collecting frame 3 and configuring a first coil spring 25 between the two, the ball can be stably collected while efficiently converting the impact kinetic energy of the ball into the rotational kinetic energy of the receiving plate 13. The first coil spring 25 can buffer and reduce shock, reduce the rebound of the ball and the loss of kinetic energy, and at the same time realize the automatic reset of the receiving plate 13, ensuring the continuous and stable operation of the equipment. The overall structure is purely mechanical, requires no power supply, and is suitable for long-term outdoor use.

[0038] The ball-collecting frame 3 is located above the mounting frame 1, directly below the basket, with an opening larger than the basket's diameter to ensure the entire basketball falls into the net. Internal space is reserved for the installation and rotation of the receiving plate 13, preventing interference with the basketball's descent path. Made of stainless steel tubing, hard aluminum alloy, or high-strength engineering plastic, it possesses sufficient structural rigidity, is not easily deformed, is rust-resistant and impact-resistant outdoors, ensuring long-term stability. A frame-and-net structure can also be used. The receiving plate 13 is rotatably connected to the center of the ball-collecting frame 3, with its surface directly facing the basketball's trajectory, ensuring the basketball stably impacts the center of the plate. Rotation is flexible and smooth, matching the basketball's impact direction, allowing for smooth transfer of kinetic energy to the transmission components. It is made of ABS engineering plastic, PA66 reinforced nylon, or thin stainless steel sheet, with moderate weight, good impact resistance and toughness, no significant rebound upon contact with the basketball, smooth rotation, and wear resistance. The first spring 25 is mounted on the rotating shaft of the receiving plate 13, with one end fixed to the receiving plate 13 and the other end fixed to the ball collection frame 3; the elasticity is moderate, which can effectively buffer the impact and assist the receiving plate 13 in resetting, without hindering the normal fall of the basketball and the transfer of kinetic energy.

[0039] like Figures 4 to 6 As shown, in order to achieve efficient temporary storage and directional transmission of kinetic energy, and to superimpose it with the gravitational potential energy of the basketball to significantly improve the serving power, preferably, the force-applying component includes: a ratchet shaft 18, rotatably connected to the mounting frame 1, and a ratchet 19 fixedly connected to the ratchet shaft 18. The ratchet 19 is used to rotate the lever receiving and serving mechanism, transferring the kinetic energy transmitted to the ratchet shaft 18 to the lever receiving and serving mechanism; and a second coil spring 26, disposed between the ratchet shaft 18 and the mounting frame 1, used to temporarily store the kinetic energy transmitted by the transmission component when the locking trigger locks the ratchet 19.

[0040] Specifically, the force-applying component can stably receive and temporarily store the kinetic energy of the basketball entering the net. The second coil spring 26 reliably stores energy and releases it quickly. The ratchet 19 can realize directional power transmission and instantaneous actuation. The overall structure is purely mechanical, with strong self-locking and no kinetic energy backflow. The timing of energy storage and release is precisely controllable and can be perfectly synchronized with the impact of the basketball falling, significantly improving the power and stability of the serve. Moreover, the structure is simple, durable, and suitable for long-term outdoor use. The ratchet shaft 18 is rotatably connected to the mounting frame 1, with its axis arranged horizontally and parallel to the lever receiving and serving mechanism. It is precisely coaxially connected with the transmission component to ensure lossless kinetic energy transmission. The rotation is smooth and without radial wobble, providing a stable mounting reference for the ratchet 19 and the second coil spring 26. The ratchet 19 and the ratchet shaft 18 are rigidly fixed and rotate synchronously, with the tooth profile facing the lever receiving and serving mechanism, ensuring that the receiving arm 5 can be directly and reliably actuated during rotation. The number and thickness of the teeth are moderate, ensuring stable meshing and powerful actuation. The second spring 26 is mounted on the ratchet shaft 18, with one end fixed to the ratchet shaft 18 and the other end fixed to the mounting frame 1. When the ratchet 19 is locked in one direction, it tightens and stores energy as it rotates in the opposite direction with the ratchet shaft 18. When unlocked, it quickly releases the spring force. The spring force is moderate, which can fully store kinetic energy without causing the mechanism to overload or jam.

[0041] like Figures 1 to 6 As shown, in order to efficiently and losslessly convert the horizontal rotational kinetic energy of the receiving plate 13 into the vertical rotational kinetic energy of the transmission rod 14, while achieving unidirectional transmission to ensure that the basketball's kinetic energy is transmitted only to the force-applying component, preventing reverse energy loss, and ensuring the smooth reset of the receiving plate 13, preferably, the transmission component includes a transmission rod 14 rotatably connected to the mounting frame 1. The upper end of the transmission rod 14 is connected to the receiving plate 13 via a bevel gear set 22. The bevel gear set 22 includes two meshing bevel gears, and the bevel gears of the bevel gear set 22 are connected to the rotating shaft of the bearing plate 13 via a one-way bearing 24.

[0042] Specifically, the transmission rod 14, in conjunction with the bevel gear set 22, can achieve 90° directional transmission, perfectly adapting to the layout requirements of the narrow space under the basket. Combined with the one-way bearing 24, it only allows unidirectional rotation of the receiving plate 13 when capturing kinetic energy to transmit kinetic energy, and automatically idles when the receiving plate 13 resets, without interfering with each other. This ensures both the efficiency and unidirectionality of kinetic energy transmission, and improves the smoothness and continuity of the mechanism's operation. The overall structure is compact, the transmission is stable, and the anti-interference is strong, effectively ensuring the reliability of the entire kinetic energy capture link. The transmission rod 14 is rotatably connected to the mounting frame 1, with its axis arranged vertically, located between the ball collecting frame 3 and the ratchet shaft 18, forming a vertical transmission link. The connection part with the mounting frame 1 uses high-precision bearings or copper sleeves to reduce frictional resistance and improve kinetic energy transmission efficiency. The bevel gear set 22 contains two meshing bevel gears, which are rigidly fixed to the rotating shaft of the receiving plate 13 and the top end of the transmission rod 14, respectively. The one-way bearing 24 only allows the receiving plate 13 to capture kinetic energy and rotate downwards, driving the bevel gear and transmission rod 14 to rotate; when the receiving plate 13 is driven to reverse and reset by the first coil spring 25, the one-way bearing slips and the bevel gear does not rotate.

[0043] like Figures 5 to 6 As shown, in order to ensure that the kinetic energy is reliably stored and accurately released the moment the basketball falls to the receiving arm 5, so that the power of the force-applying component and the gravitational potential energy of the basketball are completely synchronized and superimposed to maximize the serving force, preferably, the locking trigger component includes: a rotating frame 20 and a pawl 21. The rotating frame 20 is rotatably connected to the mounting frame 1, with one end located between the ball collecting frame 3 and the lever receiving and serving mechanism, and the other end located above the ratchet 19. The pawl 21 is fixedly connected to the end of the rotating frame 20 above the ratchet 19 and is used to lock the ratchet 19 so that the ratchet 19 can only rotate in one direction.

[0044] Specifically, the locking trigger utilizes a purely mechanical structure to achieve one-way locking of the ratchet 19, preventing kinetic energy backflow loss during energy storage. Simultaneously, the basketball's own falling gravity drives the rotating frame 20 to swing, automatically releasing the pawl 21 from the lock. This ensures precise synchronization between energy release and the basketball's landing action, without delay or premature action. The overall structure is simple, the trigger is sensitive, and the action is reliable. It requires no electrical control or external power, making it suitable for long-term stable use in outdoor basketball courts. The rotating frame 20 is rotatably connected to the mounting frame 1 in the middle, forming a lever-type swing structure. One end extends into the basketball's falling path between the ball-collecting frame 3 and the lever ball-receiving mechanism, ensuring stable pressure on that end during the basketball's fall. The other end extends above the ratchet 19 to mount the pawl 21. The lever arm ratio at both ends is appropriate, ensuring effortless triggering and smooth action. The rotation is flexible and without jamming, and the reset is smooth, without interference with the basketball, ratchet 19, or other components. The pawl 21 and the ratchet 19 are precisely matched in tooth profile, and in their natural state, the pawl 21 is reliably pressed into the tooth groove of the ratchet 19 to achieve one-way locking, allowing the ratchet 19 to rotate only in the energy storage direction. When the rotating frame 20 swings, the pawl 21 rises accordingly, completely separating from the ratchet 19, and achieving smooth unlocking.

[0045] like Figures 1 to 2 As shown, in order to provide directional guidance for the basketball's descent, allowing the basketball to acquire sufficient gravitational potential energy to be converted into impact kinetic energy, while avoiding rolling friction loss, ensuring the basketball's vertical and accurate impact on the receiving arm, and improving torque conversion efficiency, preferably, the receiving component also includes a vertical ball-dropping channel 2 disposed between the lever ball-receiving mechanism and the ball-collecting frame 3, the height of the vertical ball-dropping channel 2 being 1.5m to 2.5m.

[0046] Specifically, the vertical ball drop channel 2 restricts the basketball's trajectory, preventing it from rolling diagonally or colliding with surrounding components. It converts rolling friction into free-fall air friction, significantly reducing energy loss and ensuring efficient kinetic energy transfer. An optimal drop height of 1.5m to 2.5m allows the basketball to accumulate sufficient gravitational potential energy to generate a strong impact force driving the lever's rotation, while avoiding excessive impact and damage to the mechanism due to excessive height, or insufficient kinetic energy and weak serve power due to insufficient height. The vertical ball drop channel 2 ensures the basketball maintains a vertical drop posture, precisely impacting the pre-set force zone of the receiving arm 5, with no lateral force component, ensuring the impact force is completely converted into lever rotation torque, thus improving serve stability.

[0047] like Figure 5 As shown, in order to achieve stable energy storage and precise reset of the spring, ensure that the spring extension and contraction direction is consistent with the lever rotation trajectory, avoid spring overload and torsion damage, and improve energy storage and reset efficiency and service life of the mechanism, preferably, the elastic reset mechanism includes a sleeve 701 rotatably connected to the mounting frame 1 and an insertion rod 702 rotatably connected below the ball receiving long arm 5. The insertion rod 702 is inserted into the sleeve 701, and a spring 7 is provided between the insertion rod 702 and the sleeve 701.

[0048] Specifically, the insertion and connection of the sleeve 701 and the insertion rod 702 strictly limits the axial extension and contraction of the spring 7, ensuring that the direction of the spring 7's extension and contraction is completely consistent with the direction of the force generated by the lever's rotation. This prevents the spring 7 from twisting or bending due to lateral forces, eliminates the possibility of the spring 7 failing due to off-center load, and guarantees the stability of energy storage and reset. The sleeve 701 and the insertion rod 702 are respectively rotatably connected to the mounting frame 1 and the ball-receiving long arm 5, adapting to the arc-shaped rotation trajectory of the lever. This avoids hard friction and stress concentration between the spring 7 and the connecting parts, allowing the kinetic energy of the basketball impact to be smoothly converted into the elastic potential energy of the spring 7, resulting in more complete energy storage and more efficient energy release during impact.

[0049] like Figures 5 to 10 As shown, in order to achieve long-distance, high-power basketball serves without external power, and to solve the problems of insufficient power and short distance in traditional pure gravity serves, preferably, the length of the receiving long arm 5 is 4 to 5 times the length of the serving short arm 6.

[0050] Specifically, according to the lever torque formula M=F×L (torque = force × lever arm), when the force F applied to the long arm of the basketball impact is fixed, the longer the lever arm, the greater the input torque; the short arm has a shorter output lever arm, which can convert the input torque into a larger impact force (F). 短 =F 长 ×L 长 / L 短 A lever arm ratio of 4 to 5 is the optimal ratio for a purely mechanical gravity-based serve. This ensures that the serve power is amplified to meet the needs of long-distance training, such as the three-point line (serving distance can reach 10 to 16 meters), while avoiding the problems of a bulky mechanism and rotational jamming caused by an excessively large lever arm ratio. The impact stroke of the basketball falling from the ball-collecting mechanism under the basket is matched with the rotational stroke of the long arm end. A lever arm ratio of 4 to 5 allows almost all of the basketball's gravitational potential energy and impact energy to be converted into the rotational kinetic energy of the lever, rather than energy loss due to an excessively small lever arm ratio or idling due to an excessively large lever arm ratio. This achieves efficient transfer of gravitational potential energy to serving kinetic energy.

[0051] like Figures 5 to 10 As shown, in order to adapt to different under-basket installation spaces and serving requirements, and relying on the lever torque transmission characteristics, the gravitational impact energy is efficiently converted into serving kinetic energy, while taking into account the smoothness of the mechanism's movement and the stability of the serving trajectory, preferably, the angle between the serving short arm 6 and the long arm serving stick 5 is 90 to 180°, with the lever pivot 4 as the vertex of the angle.

[0052] Specifically, 90° corresponds to an L-shaped lever, which has a compact structure and smooth force transmission direction, making it suitable for the narrow space under the basket; 180° corresponds to a straight lever, which transmits torque directly and makes the serve more stable. The 90-180° range is compatible with transitional forms and can be flexibly selected according to the installation scenario, improving the equipment's versatility. With the pivot as the apex of the angle, it ensures that the vertical impact force of the basketball on the long arm is completely converted into the lever's rotational torque, with no lateral force loss, making the torque transmission from the long arm to the short arm more direct and maximizing the retention of the serve's kinetic energy. This angle range limits the rotation trajectory of the short arm and the long arm, avoiding collisions between the lever and components such as the mounting frame 1 and the ball collection mechanism under the basket during lever rotation, while ensuring that the short arm 6 can accurately connect with the serve guide mechanism without any ball deviation or jamming issues. The angle adapts to the vertical impact direction of the basketball and the horizontal or diagonal serve requirements, allowing the short arm 6 to act on the basketball at the optimal angle, ensuring that the basketball smoothly enters the guide mechanism after impact, and improving the stability of the serve direction and trajectory.

[0053] like Figure 9 As shown, in order to achieve low-resistance and high-efficiency rotation of the lever receiving and serving mechanism, reduce energy loss, improve the conversion efficiency of gravitational potential energy into serving kinetic energy, and at the same time take into account the purpose of lightweight mechanism and structural stability, preferably, the lever shaft 4 is rotatably connected to the mounting frame 1 through a rolling bearing, and the receiving long arm 5 is provided with weight reduction holes.

[0054] Specifically, rolling bearings replace the traditional pin-shaft sliding connection, converting sliding friction into rolling friction. This significantly reduces the rotational resistance between the shaft and mounting frame 1, avoiding frictional loss of impact kinetic energy, ensuring more efficient torque transmission, and smoother, jam-free lever rotation. Without reducing the rigidity of the long arm, the amount of material used and the overall mass of the long arm are reduced, lowering the lever's rotational inertia. This allows the basketball's impact energy to drive the lever rotation more quickly, increasing the instantaneous speed at the striking end and further amplifying the serving power. Simultaneously, the overall weight of the equipment is reduced, facilitating installation and transportation. The low-friction rotation combined with the low-inertia structure allows the lever to quickly return to its original position after impact under the action of the elastic reset mechanism, without any lag, ensuring the "receiving and serving – reset" cycle and improving the equipment's continuous working capability. Rolling bearings such as 624ZZ miniature deep groove ball bearings and S608ZZ304 stainless steel miniature deep groove ball bearings can be used.

[0055] like Figures 5 to 8 As shown, in order to limit the position of the basketball on the receiving long arm and the impact position, prevent the basketball from rolling towards the serving short arm after being impacted, and ensure that the impact kinetic energy of the basketball is fully applied to the long arm end, so as to avoid kinetic energy loss and serving failure, preferably, a ball-blocking curtain 9 is provided above the receiving long arm 5 in the mounting frame 1, which is used to block the basketball when it falls on the receiving long arm 5 and prevent the basketball from rolling towards the serving short arm 6.

[0056] Specifically, the ball-blocking curtain 9 prevents the basketball from rolling towards the short arm, ensuring that the basketball always impacts the target area on the long arm 5, guaranteeing that the impact force acts perpendicularly to the long arm, with no lateral loss in torque conversion, thus improving the power and stability of the serve. Combined with the vertical ball-dropping channel 2, it further regulates the entire trajectory of the basketball from its descent to impact, allowing the basketball to land precisely and impact stably upon entering the net, reducing power loss due to basketball deviation, and ensuring that each impact effectively drives the lever serve. The ball-blocking curtain 9 is a flexible blocking structure. After the lever serving mechanism resets, the second basketball 11 moves back to the ball-blocking curtain 9, and rolls along the long arm 5, pushing aside the curtain 9, towards the short arm 6, without affecting the next cycle.

[0057] like Figure 10 As shown, in order to achieve flexible and adjustable serving angle, and at the same time to stabilize and fix the adjusted angle by utilizing damping characteristics, adapting to different training serving directions and height requirements, and improving the versatility and serving accuracy of the equipment, preferably, a guide plate 8 is also included to guide the basketball serving direction. The guide plate 8 is rotatably connected to the mounting frame 1 through the first damping shaft 12.

[0058] Specifically, the tilt angle of the guide plate 8 can be freely adjusted according to the trainee's height, receiving position, and training needs (close / long distance serves), changing the basketball's serving trajectory and release angle. This allows for diverse basketball training needs to be met without replacing the equipment, enhancing its versatility. The first damping shaft 12 has built-in damping resistance, which, after adjustment, stably fixes the guide plate 8 at the preset angle, preventing angle shifts due to basketball impacts or slight equipment vibrations, ensuring a consistent serving trajectory and improving serving accuracy and stability. Angle adjustment is achieved simply by rotating the guide plate 8; the damping structure automatically positions itself, eliminating the need for bolts, clips, or other additional fasteners. This convenient operation and simplified structural design align with the equipment's overall lightweight and easy-to-operate characteristics.

[0059] like Figure 10 As shown, in order to achieve a wide range of adjustment and stable positioning of the overall serving angle of the equipment, while providing solid support for the equipment, adapting to different training positions, basket heights and court layouts, and further improving the adaptability and flexibility of the equipment, preferably, it also includes a mounting base 15, and the mounting frame 1 is rotatably connected to the mounting base 15 through the second damping shaft 17.

[0060] Specifically, the mounting frame 1 can be rotated around the second damping pivot 17 to adjust the overall left and right angle of the equipment. This allows for flexible adjustment of the serving direction based on the trainee's position, training distance (close shot / long shot), and the height of the space under the basket, meeting the diverse serving needs of single-person multi-position and multi-person collaborative training, significantly improving the equipment's versatility. The damping characteristics of the second damping pivot 17 ensure that the adjusted overall angle of the equipment remains stable and fixed, preventing angle displacement due to basketball impact or slight ground vibrations, ensuring consistent serving trajectories, and avoiding repeated adjustments due to angle deviations during training, thus improving training efficiency. No additional modifications to the basketball hoop are required; it can be directly placed under the basket using the mounting base. Combined with the overall angle adjustment, it can adapt to different basketball hoop sizes and basket layouts, as well as court space limitations. Installation and adjustment are simple and require no professional tools.

[0061] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A basketball training ball-collecting and serving device, comprising a mounting frame, characterized in that, It also includes a kinetic energy capture mechanism, a lever-operated ball receiving mechanism, and an elastic reset mechanism; The kinetic energy capture mechanism includes: a receiving component for receiving a basketball thrown by the user and converting the kinetic energy of the basketball into the kinetic energy of the receiving component when the basketball lands on it; a transmission component, disposed on the mounting frame, for transmitting the kinetic energy of the receiving component to the force-applying component; a force-applying component, disposed on the mounting frame, for temporarily storing the kinetic energy transmitted by the transmission component and applying the kinetic energy to the lever receiving mechanism after the locking trigger releases the locking; and a locking trigger, rotatably connected to the mounting frame, for keeping the force-applying component in a locked energy-storing state and releasing the locking when the basketball falls to the lever receiving mechanism, so that the release action of the force-applying component and the gravity impact action of the basketball synchronously drive the lever receiving mechanism. The lever receiving and serving mechanism includes a lever shaft rotatably connected within the mounting frame, a receiving long arm and a serving short arm fixedly connected to both sides of the lever shaft, with the receiving long arm positioned below the receiving component; The elastic reset mechanism is located between the lever receiving and serving mechanism and the mounting frame, and is used to drive the lever receiving and serving mechanism to reset.

2. The basketball training ball collection and serving device according to claim 1, characterized in that: The receiving component includes a ball-collecting frame mounted on the mounting frame and a receiving plate rotatably connected within the ball-collecting frame, wherein a first coil spring is provided between the receiving plate and the ball-collecting frame.

3. The basketball training ball collection and serving device according to claim 2, characterized in that: The force-applying component includes: A ratchet shaft is rotatably connected to the mounting frame, and a ratchet is fixedly connected to the ratchet shaft. The ratchet is used to rotate the lever receiving ball mechanism, and to transfer the kinetic energy transmitted to the ratchet shaft to the lever receiving ball mechanism. The second spring, located between the ratchet shaft and the mounting frame, is used to temporarily store the kinetic energy transmitted by the transmission component when the locking trigger locks the ratchet.

4. The basketball training ball collection and serving device according to claim 3, characterized in that: The transmission component includes a transmission rod rotatably connected to the mounting frame. The upper end of the transmission rod is connected to the receiving plate via a bevel gear set. The bevel gear set includes two meshing bevel gears, and the bevel gears of the bevel gear set are connected to the rotating shaft of the bearing plate via a one-way bearing.

5. The basketball training ball collection and serving device according to claim 4, characterized in that: The locking trigger includes a rotating frame and a pawl. The rotating frame is rotatably connected to the mounting frame, with one end positioned between the ball collecting frame and the lever ball receiving mechanism, and the other end positioned above the ratchet. The pawl is fixedly connected to the end of the rotating frame above the ratchet and is used to lock the ratchet, allowing it to rotate only in one direction.

6. The basketball training ball collection and serving device according to claim 2, characterized in that: The receiving component also includes a vertical ball drop channel disposed between the lever ball receiving mechanism and the ball collecting frame, the height of which is 1.5m to 2.5m.

7. The basketball training ball collection and serving device according to claim 1, characterized in that: The elastic reset mechanism includes a sleeve rotatably connected to the mounting frame and an insert rod rotatably connected below the ball receiving arm. The insert rod is inserted into the sleeve, and a spring is provided between the insert rod and the sleeve.

8. The basketball training ball collection and serving device according to claim 1, characterized in that: The length of the receiving long arm is 4 to 5 times the length of the serving short arm; the angle between the serving short arm and the long arm of the serving stick is 90 to 180°, with the lever pivot as the vertex of the angle.

9. The basketball training ball collection and serving device according to claim 6, characterized in that: The lever shaft is rotatably connected to the mounting frame via a rolling bearing, and the ball-receiving long arm is provided with weight-reducing holes.

10. The basketball training ball collection and serving device according to claim 1, characterized in that: It also includes a guide plate for guiding the direction of the basketball serve, the guide plate being rotatably connected to the mounting frame via a first damping shaft.

Images