Ball picking mechanism

Abstract

The utility model discloses a ball picking mechanism and belongs to the technical field of stadium equipment. An upper plate of a ball picking mechanism is used as a structural main body, and a power supply system is arranged above the upper plate of the ball picking mechanism; and left and right power tire systems are arranged below the upper plate. When the ball picking mechanism is suspended and does not make contact with the ground, the hanging ring fisheye screw is not coaxial with the outer ring inner gear but deviates downwards, so that the overall gravity borne by the ball picking inner cylinder device is basically borne by the ground instead of power systems on the left side and the right side; when the ball picking-up mechanism makes contact with the ground, the contact point of the fisheye screw of the hanging ring and the smooth screw of the hexagonal counter-locking screw nut moves upwards, so that the spring deforms, force is generated on the up-down contact and the structure, the effect of transferring the gravity of the device is achieved, friction force of power systems on the left side and the right side to the ground is reduced, and the service life of the device is prolonged. And the friction force of the middle ball picking inner cylinder device to the ground is increased. The distance between the double-end bolts on the inner roller is adjustable, and a user can select a proper distance by himself or herself according to the ball picking requirement.

Description

Technical Field

[0001] This utility model belongs to the technical field of sports venue equipment, specifically relating to a ball-collecting mechanism. Background Technology

[0002] Currently, manual ball retrieval in sports venues suffers from inefficiency and high manpower costs. This is particularly true in sports like tennis and table tennis, where frequent ball retrieval is crucial, often requiring players to spend a significant amount of time doing so, impacting the continuity and efficiency of training and matches. Furthermore, manual ball retrieval increases the workload for staff and the expenses of the venue, a problem that is especially pronounced in large-scale events or training facilities.

[0003] Currently, apart from the main manual ball-collecting method, there are relatively few ball-collecting devices on the market, such as ping-pong ball collectors and tennis ball collectors. The increased number of balls in the collection task has a significant impact on the load of the entire device, and its effect on reducing the labor intensity of ball collection is very limited. Utility Model Content

[0004] This utility model is designed to meet the needs of ball retrieval in sports fields (tennis, table tennis, etc.).

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A ball-collecting mechanism, with an upper plate 4 as the main structure, and a power supply system is provided above the upper plate 4; the power supply system includes a battery protective shell 3 and a battery 49, which provide energy for the operation of the ball-collecting mechanism;

[0007] Furthermore, a left-side wire-locking groove 18 and a right-side wire-locking groove 5 are installed below the upper plate 4. While enhancing the appearance of the ball-collecting mechanism, these grooves also secure the wires below the upper plate 4, thus protecting the wiring.

[0008] The upper plate 4 is provided with left and right power tire systems below it. The upper plate 4 is connected to the fixed brackets 1 on the left and right sides respectively. The fixed brackets 1 are connected to the middle plate 27, so that the upper plate 4 is connected to the left and right power tire systems.

[0009] Furthermore, the right sign shell 30 and the left sign shell 13 are respectively connected to the fixed brackets 1 on the left and right sides, serving a decorative purpose;

[0010] The ball-collecting mechanism is centered on the central plate 27 on both sides, forming the left and right power systems. One side of the central plate 27 is connected to the motor mounting base 43, which simultaneously fixes the motor 29 and the self-made bearing housing 44, providing the first stage of power output for the ball-collecting mechanism. Two bevel gears 45 are respectively connected to the motor shaft of the motor 29 and the connecting shaft 35. The two bevel gears 45 mesh tightly, which can transmit the first stage of power output to the large gear 31 connected to the connecting shaft 35, providing the second stage of power output for the ball-collecting mechanism. The bearing housing bracket 33 is connected to one side of the central plate 27 and the bearing housing 34. The bearing housing 34 and the self-made bearing housing 44 together fix and protect the rotation of the connecting shaft 35. The outer ring inner gear 28 meshes with the large gear 31 and three small gears 25, which can transmit the second stage of power to the outer ring inner gear 28, providing the ball-collecting mechanism with the third stage of power output to the ground. Each small gear 25 plays a supporting role, and the main objects of power transmission are the outer ring inner gear 28 and the large gear 31.

[0011] Furthermore, the motor 29 achieves the effect of an external reducer on the outside of the motor through the meshing transmission between the motor shaft and multiple gears. The reduction ratio between the motor shaft and the outer ring inner gear 28 is preferably 81:20, which increases the torque output of the motor to the outer ring inner gear 28, making the control of the outer ring inner gear 28 faster.

[0012] The inner end of the inner bracket 36 is fixed to the inner side of the middle plate 27, and the inner end of the outer bracket 26 is fixed to the outer side of the middle plate 27. The middle part of each inner bracket 36 and the middle part of the outer bracket 26 are fixedly connected by a hexagonal self-locking nut 37 and a locking screw 38. At the same time, the deep groove ball bearing 32 is fixed to the center of the gear 25 and installed on the optical axis of the locking screw 38. The deep groove ball bearing 32 can rotate freely on the optical axis of the locking screw 38. The inner side of the inner bracket 36 and the inner side of the outer bracket 26 together ensure the verticality and locking of the deep groove ball bearing 32. The inner bracket 36 and the outer bracket 26 simultaneously ensure the verticality and locking of the pinion 25 and the inner gear 28 of the outer ring. The inner gear 28 of the outer ring and the three pinions 25 can rotate relative to each other.

[0013] The inner side of the middle plate 27 is connected to the suspension bracket 40; a hexagonal locking screw nut 39 is installed on the suspension bracket 40, and a spring 41 is fitted on the smooth screw part of the hexagonal locking screw nut 39. Below the spring 41 and on the smooth screw part of the hexagonal locking screw nut 39, a lifting eye spherical screw 42 that can move up and down along the smooth screw is fitted. The cylindrical nut sleeve 21 connects the central steel pipe 9 to the lifting eye spherical screw 42. This design makes the ball picking inner cylinder device and the outer ring inner gear 28 on the outer side not on the same axis.

[0014] The large inner wheel 19 is located on the outer circumference of the inner gear 28. The large inner wheel 19, the deep groove ball bearing 20, the limiting ring 22, the cylindrical nut sleeve 21, and the central steel pipe 9 are connected sequentially from the outside to the inside. The deep groove ball bearing 20 is fixed to the cylindrical nut sleeve 21 by the limiting ring 22. The limiting ring 22, in conjunction with the suspension bracket 40, is used to ensure that the large inner wheel 19 located between the two is vertical and in a locked position. The large inner wheel 19 is fitted onto the deep groove ball bearing 20, allowing the large inner wheel 19 to rotate freely around the vertical plane of the deep groove ball bearing 20. The disc edge of the large inner wheel 19 has holes of the same size and interval. A small screw is fixed on the side of the corresponding hole near the suspension bracket 40. The two ends of the double-ended nut sleeve 23 are respectively fixed to the bolt portion of the small screw extending beyond the large inner wheel 19 and one end of the double-ended bolt 24. At the same time, the other side of the double-ended bolt 24 is fixed in the same way. By uniformly adjusting the spacing between adjacent double-ended bolts 24 within the hole, the ball-collecting inner cylinder device can selectively pick up spherical objects of different sizes. Through the elasticity of the spherical objects and the double-ended bolts 24, the target spherical object is pressed into the ball-collecting inner cylinder device to complete the ball-collecting operation. At the same time, the double-ended bolts 24 can be removed by simply tightening the double-through nut sleeves 23 on both sides of a double-ended bolt 24 to the point where they are disengaged from the corresponding small screws connected to the large wheel 19 in the middle cylinder, and the ball-collecting operation can be performed from this position where the spacing has been expanded.

[0015] Preferably, 60 holes are provided, such as 4 holes between the two double-ended bolts 24 when picking up a tennis ball. Thus, the cylindrical nut sleeve 21, the middle cylinder deep groove ball bearing 20, the limiting ring 22, the middle cylinder large wheel 19, the double-ended bolts 24, the double-through nut sleeve 23, and the central steel pipe 9 together constitute the ball-picking inner cylinder device of the ball-picking mechanism.

[0016] The beneficial effects of this utility model are:

[0017] (1) The ball-collecting mechanism greatly reduces the impact of the increased number of balls in the ball-collecting task on the overall load of the device, and uses the spring 41 to transfer the gravity of the device, so that the center of gravity of the ball-collecting mechanism moves upward and the entire ball-collecting mechanism is better balanced. At the same time, it increases the friction between the ball-collecting inner cylinder device and the ground, so that the ball-collecting inner cylinder device moves better. When the ball-collecting mechanism is suspended and does not contact the ground, the lifting eye screw 42 will not be coaxial with the outer ring inner gear, but will be offset downward. This makes the overall weight of the ball-collecting inner cylinder device basically borne by the ground, rather than the power system on the left and right sides. When the ball-collecting mechanism contacts the ground, the contact point between the lifting eye screw 42 and the smooth screw of the hexagonal locking screw nut 39 will move upward, so that the spring 41 will deform and exert force on the upper and lower contact structure, which plays the role of transferring the gravity of the device, reducing the friction of the power system on the ground on the left and right sides, and increasing the friction of the ball-collecting inner cylinder device in the middle on the ground. As follows: On the one hand, the spring 41 exerts a downward force on the eyelet screw 42, which increases the friction between the ball-collecting inner cylinder device and the ground. Since the ball-collecting inner cylinder device is essentially propelled forward by the power systems on both sides during the ball-collecting process, increasing the friction between the ball-collecting inner cylinder device and the ground helps it maintain good rotation during the ball-collecting process and the differential motion of the ball-collecting mechanism, rather than being dragged and kept stationary. On the other hand, the spring 41 provides an upward force on the suspension bracket 40, raising the center of gravity of the power systems on both sides and the main body device such as the upper plate 4, making it easier to control the balance of the ball-collecting mechanism.

[0018] (2) The spacing of the elastic rods (i.e., double-headed bolts 24) on the inner roller of this device is adjustable, and users can choose the appropriate spacing according to their ball picking needs. For example, when the spacing between the two elastic rods is 4 holes, tennis balls can be picked up selectively, while when the spacing is 3 holes, ping-pong balls can be picked up. This design greatly reduces the design cost and provides more ball picking effects to choose from. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the ball-collecting mechanism.

[0020] Figure 2 This is a schematic diagram of the internal structure of the ball-collecting mechanism.

[0021] Figure 3 This is a schematic diagram of the inner side of the tire power system on one side of the ball-collecting mechanism.

[0022] Figure 4 This is a schematic diagram of the outer side of the single-sided tire power system of the ball-collecting mechanism.

[0023] In the diagram: 1. Fixed bracket; 3. Battery protective shell; 4. Top plate; 5. Right side cable slot; 9. Central steel pipe; 13. Left side marker shell; 18. Left side cable slot; 19. Middle cylinder large wheel; 20. Middle cylinder deep groove ball bearing; 21. Cylindrical nut sleeve; 22. Limiting ring; 23. Double-through nut sleeve; 24. Double-ended bolt; 25. Small gear; 26. Outer bracket; 27. Middle plate; 28. Outer ring internal gear; 29. ​​Motor; 30. Right side marker shell; 31. Large gear; 32. Deep groove ball bearing; 33. Bearing seat bracket; 34. Bearing seat; 35. Connecting shaft; 36. Inner bracket; 37. Hexagonal self-locking nut; 38. Plug screw; 39. Hexagonal double-locking screw nut; 40. Suspension bracket; 41. Spring; 42. Eyelet screw; 43. Motor mounting base; 44. Self-made bearing seat; 45. Bevel gear; 49. Battery. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0025] An intelligent ball-collecting robot includes a fixed bracket 1, a battery protective shell 3, an upper plate 4, a right-side cable-holding groove 5, a central steel pipe 9, a left-side marker shell 13, a left-side cable-holding groove 18, a large middle wheel 19, a deep groove ball bearing 20, a cylindrical nut sleeve 21, a limiting ring 22, a double-ended nut sleeve 23, a double-ended bolt 24, a pinion 25, an outer bracket 26, a middle disc 27, an outer ring internal gear 28, a motor 29, a right-side marker shell 30, a large gear 31, a deep groove ball bearing 32, a bearing seat bracket 33, a bearing seat 34, a connecting shaft 35, an outer bracket 36, a hexagonal self-locking nut 37, a plug screw 38, a hexagonal locking screw nut 39, a suspension bracket 40, a spring 41, a swivel bolt 42, a motor mounting base 43, a self-made bearing seat 44, a bevel gear 45, and a battery 49. Its features are:

[0026] The power output systems on both sides have the following characteristics: The fixed bracket 1 is fixed to the middle plate 27 with screws; the middle plate 27 is connected to the motor mounting base 43 with screws; the motor mounting base 43 is simultaneously connected to the motor 29 and the self-made bearing housing 44 with screws; two bevel gears 45 are respectively connected to the motor 29 and the connecting shaft 35 with screws; the connecting shaft 35 is directly fixed to the large gear 31; the two bevel gears 45 are connected by meshing; the bearing housing bracket 33 is connected to the middle plate 27 with screws; the bearing housing bracket 33 is connected to the bearing housing 34 with screws; each middle plate 27 has the following three pairs of features: inner... The side bracket 36 and the outer bracket 26 are respectively fixed to the inner and outer sides of the middle plate by screws. The inner bracket 36 is fitted with a hexagonal self-locking nut 37. The plug screw 38 passes through the outer bracket 26 and is connected to the hexagonal self-locking nut 37. The deep groove ball bearing 32 is connected to the optical axis of the plug screw 38. The pinion 25 is sleeved on the outside of the deep groove ball bearing 32. The inner bracket 36 and the outer bracket 26 simultaneously fix the pinion 25 and the deep groove ball bearing 32. Then, the outer ring inner gear 28 meshes with the large gear 31 and the three pinions 25. At the same time, the outer ring inner gear 28 is fixed by the inner bracket 36 and the outer bracket 26.

[0027] The inner side of the middle plate 27 is connected to the suspension bracket 40 by screws. The suspension bracket 40 is directly connected to the hexagonal locking screw nut 39. At the same time, the nut part of the hexagonal locking screw nut 39 is fixed by the suspension bracket 40. The spring 41 and the eye swivel screw 42 are both installed on the smooth screw of the hexagonal locking screw nut 39. The spring 41 is above the eye swivel screw 42. The cylindrical nut sleeve 21 is directly connected to the central steel pipe 9 and the eye swivel screw 42. The middle cylinder deep groove ball bearing 20 and the limiting ring 22 are installed on the cylindrical nut sleeve 21. The middle cylinder deep groove ball bearing 20 is fixed to the cylindrical nut sleeve 21 by the limiting ring 22. The threaded part of each side of the 12 double-ended bolts 24 is connected to the small screw that has been fixed on the middle cylinder large wheel 19 through the double-through nut sleeve 23. Each pair of double-ended bolts 24 is separated by 4 holes on the middle cylinder large wheel 19.

[0028] The process of using a ball-retrieving mechanism includes the following steps:

[0029] Powered by battery 49, motor 29 drives two bevel gears 45 to rotate via motor shaft, which in turn drives the large gear 31 to rotate, ultimately achieving the rotation of the inner gear 28 on the outer ring. The small gear 25 provides support. To retrieve the ball, the user needs to remove a double-ended bolt 24.

[0030] The above-described embodiments are merely illustrative of the implementation of this utility model, but should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A ball-collecting mechanism, characterized in that, The upper plate (4) of the ball-collecting mechanism is used as the main structure, and a power supply system is set above the upper plate (4) of the ball-collecting mechanism; the power supply system includes a battery protective shell (3) and a battery (49) to provide energy for the operation of the ball-collecting mechanism; The upper plate (4) is provided with left and right power tire systems. The upper plate (4) is connected to the fixed brackets (1) on the left and right sides respectively. The fixed brackets (1) are connected to the middle plate (27), so that the upper plate (4) is connected to the left and right power tire systems. The ball-collecting mechanism is centered on the central plate (27) on both sides, forming the power systems on both sides. One side of the central plate (27) is connected to the motor mounting base (43), which simultaneously fixes the motor (29) and the self-made bearing seat (44), providing the first stage of power output for the ball-collecting mechanism. Two bevel gears (45) are connected to the motor shaft and the connecting shaft (35) of the motor (29) respectively. The two bevel gears (45) mesh tightly, which can transmit the first stage of power output to the large gear (31) connected to the connecting shaft (35), providing the second stage of power output for the ball-collecting mechanism. Secondary power output; the bearing seat bracket (33) is connected to one side of the middle plate (27) and the bearing seat (34). The bearing seat (34) and the self-made bearing seat (44) together fix and protect the rotation of the connecting shaft (35); the outer ring inner gear (28) meshes with the large gear (31) and three small gears (25), which can transmit the second-stage power to the outer ring inner gear (28) to provide the ball picking mechanism with the third-stage power output to the ground. Each small gear (25) plays a supporting role. The main objects of power transmission are the outer ring inner gear (28) and the large gear (31). The inner end of the inner bracket (36) is fixed to the inner side of the middle plate (27), and the inner end of the outer bracket (26) is fixed to the outer side of the middle plate (27). The middle part of each inner bracket (36) and the middle part of the outer bracket (26) are fixedly connected by a hexagonal self-locking nut (37) and a plug screw (38). At the same time, the deep groove ball bearing (32) is fixed at the center of the gear (25) and set on the optical axis of the plug screw (38). The deep groove ball bearing (32) can rotate freely on the optical axis of the plug screw (38). The inner side of the inner bracket (36) and the inner side of the outer bracket (26) together ensure the verticality and positioning of the deep groove ball bearing (32). The inner bracket (36) and the outer bracket (26) simultaneously ensure the verticality and positioning of the pinion (25) and the outer ring inner gear (28). The outer ring inner gear (28) and the three pinions (25) can rotate relative to each other. The inner side of the middle plate (27) is connected to the suspension bracket (40); a hexagonal locking screw nut (39) is installed on the suspension bracket (40), a spring (41) is fitted on the smooth screw part of the hexagonal locking screw nut (39), and a lifting eye screw (42) that can move up and down along the smooth screw is fitted on the smooth screw part of the hexagonal locking screw nut (39) below the spring (41). The cylindrical nut sleeve (21) connects the central steel pipe (9) to the lifting eye screw (42). The ball picking inner cylinder device is not axially aligned with the outer ring inner gear (28) on the outer side. The large inner wheel (19) is located on the outer circumference of the inner gear (28) of the outer ring; the large inner wheel (19), the deep groove ball bearing (20), the limiting ring (22), the cylindrical nut sleeve (21), and the central steel pipe (9) are connected sequentially from the outside to the inside. The deep groove ball bearing (20) is fixed on the cylindrical nut sleeve (21) by the limiting ring (22). The limiting ring (22) works with the suspension bracket (40) to ensure that the large inner wheel (19) located between the two is vertical and in position. The large inner wheel (19) is fitted onto the deep groove ball bearing (28) of the outer ring. On the groove ball bearing (20), the middle cylinder wheel (19) can rotate freely around the vertical plane of the middle cylinder deep groove ball bearing (20); the disc edge of the middle cylinder wheel (19) has holes of the same size and interval, and a small screw is fixed on the side of the corresponding hole near the suspension bracket (40). The two ends of the double-through nut sleeve (23) are respectively fixed to the bolt part of the small screw that extends beyond the middle cylinder wheel (19) and one end of the double-headed bolt (24), while the other side of the double-headed bolt (24) is fixed in the same way.

2. The ball-collecting mechanism according to claim 1, characterized in that, The right sign shell (30) and the left sign shell (13) are connected to the fixed brackets (1) on the left and right sides respectively, serving a decorative purpose.

3. The ball-collecting mechanism according to claim 1, characterized in that, The left wire clamping groove (18) and the right wire clamping groove (5) are installed below the upper plate (4). While modifying the appearance of the ball picking mechanism, they also clamp the wires below the upper plate (4) to protect the wires.

4. The ball-collecting mechanism according to claim 1, characterized in that, The motor (29) achieves the effect of an external reducer on the outside of the motor through the meshing transmission between the motor shaft and multiple gears. The reduction ratio between the motor shaft and the inner gear (28) of the outer ring is 81:20, which increases the torque output of the motor to the inner gear (28) of the outer ring, making the control of the inner gear (28) of the outer ring faster.

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