Tennis ball pickup device

Abstract

The application relates to a tennis ball collecting device, which relates to the technical field of tennis ball collection and comprises a ball collecting vehicle, a traction mechanism and a guide mechanism. The ball collecting vehicle is used for walking on a tennis court in a preset direction. The traction mechanism and the guide mechanism are both installed on the tennis court. The traction mechanism is connected with the ball collecting vehicle, and the ball collecting vehicle is slidably connected with the guide mechanism in the preset direction. The traction mechanism is used for driving the ball collecting vehicle to reciprocatingly slide relative to the guide mechanism in the preset direction, so that the ball collecting vehicle automatically collects tennis balls on a movement path. The device can collect tennis balls in a set region, the area of the region repeatedly walked on during the collection of the tennis balls is small, the time consumption is short, and the tennis ball collection efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of tennis ball collection technology, and more specifically, to a tennis ball retrieval device. Background Technology

[0002] In tennis training, a coach and a student often spar. Due to the significant skill gap, it's often impossible to reach a competitive level, with each rally averaging only 2 seconds. To improve efficiency, after 100-200 shots, a tennis ball collector is used to retrieve the balls. The same applies to training with a ball machine. However, because tennis courts are large and tennis balls are widely scattered, traditional handheld tennis ball collectors are inefficient, requiring significant physical exertion from the collector. The time spent retrieving balls is more than twice the time spent playing, causing users to waste a lot of time and energy on ball retrieval. To address this, various new ball-retrieval robots have been developed. However, existing ball-retrieval robots use a point-pickup principle (picking up individual balls sequentially), and their efficiency is less than one-third that of human retrieval, falling far short of the requirements.

[0003] The inventors discovered during their research that existing tennis ball collecting devices have at least the following drawbacks:

[0004] It is inefficient and time-consuming. Utility Model Content

[0005] The purpose of this invention includes, for example, providing a tennis ball collecting device that can collect tennis balls at a fixed point in a designated area, with a small area of ​​repeated walking during collection, short time consumption, and high tennis ball collection efficiency.

[0006] The embodiments of this utility model can be implemented as follows:

[0007] In a first aspect, this utility model provides a tennis ball retrieval device, comprising a ball retrieval cart, a traction mechanism, and a guiding mechanism, wherein:

[0008] The ball-collecting vehicle is used to travel along a preset direction on the tennis court;

[0009] Both the traction mechanism and the guiding mechanism are used to be installed on the tennis court. The traction mechanism is connected to the ball-collecting cart, and the ball-collecting cart is slidably connected to the guiding mechanism along the preset direction. The traction mechanism is used to drive the ball-collecting cart to slide back and forth relative to the guiding mechanism in the preset direction, so as to automatically collect tennis balls on the movement path through the ball-collecting cart.

[0010] In an optional embodiment, the ball-collecting cart includes a ball-collecting frame and a ball-collecting wheel. The ball-collecting frame is provided with a collection port and a collection cavity. The ball-collecting wheel is rotatably mounted on the ball-collecting frame and is located between the collection port and the collection cavity.

[0011] The traction mechanism is connected to the ball-collecting frame, and the ball-collecting wheel is used to rotate relative to the ball-collecting frame when the ball-collecting frame slides in a preset direction, so as to automatically push the tennis ball into the collection chamber.

[0012] In an optional embodiment, the ball-collecting frame includes a frame and a frame body, the collection port is opened on the frame, the frame body is detachably connected to the frame, and the collection cavity is disposed in the frame body; the ball-collecting wheel is rotatably mounted on the frame; the traction mechanism is drivenly connected to the frame and is used to drive the frame body to slide along the preset direction through the frame.

[0013] In an optional embodiment, the ball-collecting frame further includes a handle, which is mounted on the frame body and rotatably connected to the frame body; when force is applied to the handle to lift the frame body, the opening of the collecting cavity faces upward.

[0014] In an optional embodiment, the ball-collecting wheel includes two wheel bodies, an axle, and multiple ball-dispensing blades. The two ends of the axle are respectively connected to the two wheel bodies. Both wheel bodies are rotatably mounted on the ball-collecting frame. The two wheel bodies are used to move on the tennis court. The multiple ball-dispensing blades are all fixed to the axle and are arranged at intervals in the circumferential direction of the axle.

[0015] In an alternative embodiment, at least a portion of the ball-pulling plate is configured as an elastomer.

[0016] In an optional embodiment, the traction mechanism includes a motor, a drive wheel, a directional wheel, and a traction rope. The motor and the directional wheel are both installed on the tennis court and are arranged at intervals in a preset direction. The rotating shaft of the motor is connected to the drive wheel. The traction rope is tensioned outside the drive wheel and the directional wheel and is connected to the ball-collecting vehicle.

[0017] In an optional embodiment, the traction mechanism further includes a protective tube that is sleeved over a portion of the traction rope.

[0018] In an optional embodiment, the guiding mechanism includes two fixed seats and a guide rope installed between the two fixed seats. The two fixed seats are both used to fix to the tennis court and are arranged at intervals in the preset direction. The ball-collecting cart and the guide rope are slidably engaged in the preset direction.

[0019] In an optional embodiment, the guiding mechanism further includes a guide slip ring, which is sleeved on the outside of the guide rope and connected to the ball-collecting cart.

[0020] The beneficial effects of this utility model embodiment include, for example:

[0021] In summary, the tennis ball retrieval device provided in this embodiment, driven by the traction mechanism, allows the ball retrieval vehicle to slide relative to the tennis court along the guide mechanism in a preset direction, automatically collecting tennis balls from a designated area on the tennis court. Since the tennis balls are concentrated in the designated area of ​​the tennis court, the ball retrieval vehicle moves in a straight line along the preset direction within the designated area, with a small range of movement, eliminating the need for multiple back-and-forth movements and minimizing the area of ​​repeated movement. This results in short tennis ball collection time and high tennis ball collection efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the tennis ball retrieval device in this embodiment working in conjunction with a tennis court;

[0024] Figure 2 This is a schematic diagram of the tennis ball retrieval device in this embodiment;

[0025] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0026] Figure 4 for Figure 2 A magnified view of a portion of point B in the middle;

[0027] Figure 5 This is a schematic diagram of the ball-collecting vehicle in this embodiment.

[0028] icon:

[0029] 001 - Tennis court; 011 - First side; 012 - Second side; 013 - Third side; 014 - Fourth side; 002 - Preset direction;

[0030] 100-Ball-collecting cart; 110-Ball-collecting frame; 111-Frame; 1111-Base plate; 1112-Side plate; 1113-Reinforcing beam; 1114-Collection port; 112-Frame body; 1121-Collection chamber; 113-Handle; 120-Ball-collecting wheel; 121-Wheel body; 122-Wheel axle; 123-Ball-picking plate; 200-Traction mechanism; 210-Motor; 220-Drive wheel; 230-Directional wheel; 240-Traction rope; 250-Protective tube; 300-Guiding mechanism; 310-Fixed seat; 320-Guide rope; 330-Guide slip ring. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use, they are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0037] In the existing technology, tennis balls are scattered in various locations on the tennis court 001, requiring manual or robotic personnel to walk back and forth on the tennis court 001 multiple times. The area of ​​repeated walking is large, the time consumption is long, and the tennis ball collection efficiency is low.

[0038] In view of this, the designer provides a tennis ball picking device that can move along a preset direction 002 and automatically collect tennis balls in a set area. The area of ​​repeated walking during the collection process is small, the time consumption is short, and the tennis ball collection efficiency is high.

[0039] Please refer to Figures 1-5 This embodiment provides a tennis ball retrieval device, including a ball retrieval cart 100, a traction mechanism 200, and a guiding mechanism 300, wherein:

[0040] The ball-collecting cart 100 is used to travel along a preset direction 002 on the tennis court 001;

[0041] Both the traction mechanism 200 and the guide mechanism 300 are installed on the tennis court 001. The traction mechanism 200 is connected to the ball-collecting cart 100, and the ball-collecting cart 100 is slidably connected to the guide mechanism 300 along a preset direction 002. The traction mechanism 200 is used to drive the ball-collecting cart 100 to slide back and forth relative to the guide mechanism 300 in the preset direction 002, so as to automatically collect tennis balls on the movement path through the ball-collecting cart 100.

[0042] As described above, the tennis ball retrieval device provided in this embodiment works as follows:

[0043] First, the tennis balls are concentrated in a designated area of ​​tennis court 001, meaning the tennis balls are mainly concentrated in a portion of tennis court 001 extending along a predetermined direction 002, and this designated area is outside the marked area. During the collection process, the tennis ball retrieval device will not be obstructed by the net on tennis court 001. Then, the ball retrieval cart 100 is positioned on one side of tennis court 001 along the predetermined direction 002, and the traction mechanism 200 is activated. The traction mechanism 200 drives the ball retrieval cart 100 to slide relative to tennis court 001 along the guide mechanism 300 in the predetermined direction 002. During this sliding motion, the ball retrieval cart 100 automatically collects the tennis balls it passes through. Because the tennis balls are concentrated in the designated area of ​​tennis court 001, the ball retrieval cart 100 moves linearly along the predetermined direction 002 within this area, resulting in a small range of motion, eliminating the need for multiple back-and-forth movements, minimizing repetitive movement, and reducing collection time and efficiency.

[0044] Please combine Figure 1 It should be noted that the tennis court 001 is roughly rectangular in shape. The tennis court 001 has a first side 011 and a second side 012 in its width direction, and a third side 013 and a fourth side 014 in its length direction. The first side 011, third side 013, second side 012, and fourth side 014 are connected end-to-end in sequence, and the preset direction 002 is consistent with the length direction of the tennis court 001. Before picking up the tennis balls, the tennis balls of the tennis court 001 are first concentrated in a designated area near the first side 011 of the tennis court 001. The width of the designated area is roughly the same as the width of the ball-collecting cart 100. Then, the ball-collecting cart 100 moves from the third side 013 to the fourth side 014. During its movement, the ball-collecting cart 100 can contact the tennis balls in the designated area and automatically collect them. After the ball-collecting cart 100 moves from the third side 013 to the fourth side 014, it has completed the automatic collection of the tennis balls in the designated area.

[0045] The following embodiments illustrate the details of the tennis ball retrieval device by way of example.

[0046] Please combine Figures 1-5 In this embodiment, optionally, the tennis ball retrieval device includes a ball retrieval cart 100, a traction mechanism 200, and a guide mechanism 300. The ball retrieval cart 100 can travel along a preset direction 002 on the tennis court 001. The traction mechanism 200 and the guide mechanism 300 can be subsequently added to the tennis court 001 or directly integrated with the tennis court 001. The traction mechanism 200 is connected to the ball retrieval cart 100 through a transmission, providing power for the movement of the ball retrieval cart 100. The guide mechanism 300 can guide the ball retrieval cart 100 to move in the preset direction 002, improving the stability of the movement of the ball retrieval cart 100, thereby ensuring that the ball retrieval cart 100 can maintain a good posture when it comes into contact with the tennis ball, and is less prone to tilting or jamming, ensuring stable and reliable operation.

[0047] Please combine Figures 2-5 Optionally, the ball-collecting cart 100 includes a ball-collecting frame 110 and a ball-collecting wheel 120, the ball-collecting wheel 120 being rotatably mounted on the ball-collecting frame 110.

[0048] Optionally, the ball-collecting frame 110 includes a frame 111, a frame body 112, and a handle 113. The frame 111 includes a base plate 1111, two side plates 1112, and a reinforcing beam 1113. The two side plates 1112 are arranged opposite each other, each side plate 1112 having opposite front and rear sides. The base plate 1111 is fixed to the rear side of the two side plates 1112. The reinforcing beam 1113 is fixed to the front side of the two side plates 1112. The front side of the two side plates 1112 and the crossbeam cooperate to define a collection port 1114, through which tennis balls can enter the frame 111. The frame body 112 is provided with a collection cavity 1121, the front end of which is open. The frame body 112 is placed between the two side plates 1112, the rear end of which is closed and in contact with the base plate 1111, and the opening of the frame body 112 is opposite to the collection port 1114. The handle 113 can be a pull rope. The handle 113 is fixed to the top surface of the frame body 112. The handle 113 is a flexible part that can be folded and rotated relative to the frame body 112.

[0049] It should be understood that the connection between the handle 113 and the frame body 112 is closer to the opening end. Thus, when force is applied to the handle 113, the center of the frame body 112 is located on the side of the handle 113 furthest from the opening, ensuring that the opening of the frame body 112 always faces upwards, preventing the tennis ball from falling out. In other words, when force is applied to the handle 113, the frame body 112 can be directly pulled upwards from the frame 111 using the handle 113. During the pulling process, the frame body 112 will rotate relative to the handle 113 under gravity. Since the center of gravity of the frame body 112 is below the handle 113, the rotation of the frame body 112 ensures that the opening of the frame body 112 always faces upwards, thus preventing the tennis ball from falling out.

[0050] Please combine Figure 5 Optionally, the ball-collecting wheel 120 includes two wheel bodies 121, axle 122, and multiple ball-deflecting blades 123. The two ends of the axle 122 are connected to the two wheel bodies 121 respectively. The two wheel bodies 121 are located between two side plates 1112, and are rotatably mounted on the two side plates 1112. The two wheel bodies 121 are located between the collection port 1114 and the collection cavity 1121, and are used to move on the tennis court 001. The multiple ball-deflecting blades 123 are all fixed to the axle 122 and are spaced apart circumferentially on the axle 122. Under the pull of the traction mechanism 200, the frame 111 slides along the preset direction 002, and the wheel 121 contacts the tennis court 001. The sliding of the frame 111 drives the wheel 121 to rotate, thereby driving the axle 122 and multiple ball-pushing plates 123 to rotate together. When the ball-pushing plates 123 come into contact with the tennis ball during rotation, they can push the tennis ball into the collection chamber 1121, realizing the automatic collection of the tennis ball. Since the wheel 121 can rotate when the frame 111 slides, there is no need to set up an additional mechanism to drive the wheel 121 to rotate, simplifying the structure and reducing the processing and manufacturing costs.

[0051] Optionally, at least a portion of the ball-flicking plate 123 can be an elastomer, so that when the ball-flicking plate 123 comes into contact with the tennis ball, the ball-flicking plate 123 can undergo a certain elastic deformation, and the tennis ball and the ball-flicking plate 123 are less likely to get stuck.

[0052] It should be understood that there can be four ball-handling plates 123, which are evenly distributed around the axle 122.

[0053] Obviously, in some embodiments, in order to reduce the friction between the frame 111 and the tennis court 001, a traveling wheel can be provided under the frame 111. When the traction mechanism 200 pulls the frame 111 to slide, the traveling wheel rotates, and the frame 111 moves more flexibly and smoothly.

[0054] Please combine Figures 2-4In this embodiment, optionally, the traction mechanism 200 includes a motor 210, a drive wheel 220, a guide wheel 230, and a traction rope 240. The motor 210 and the guide wheel 230 are both installed on the tennis court 001 and are spaced apart in a preset direction 002. For example, the motor 210 is installed on the third side 013, and the guide wheel 230 is installed on the fourth side 014. The rotation shaft of the motor 210 is connected to the drive wheel 220. The traction rope 240 is tensioned outside the drive wheel 220 and the guide wheel 230, and is connected to the frame 111 of the ball-collecting cart 100. When the motor 210 starts, it can drive the drive wheel 220 to rotate, using friction to drive the traction rope 240 to rotate. During the rotation of the traction rope 240, the traction rope 240 between the drive wheel 220 and the guide wheel 230 can slide along the preset direction 002, thereby driving the frame 111 to move along the preset direction 002.

[0055] It should be understood that a reduction mechanism can also be installed between the motor 210 and the drive wheel 220, which can be used to adjust the speed ratio and provide flexible control. The reduction mechanism can be a gear transmission mechanism, etc.

[0056] In addition, the motor 210 can be operated manually via buttons or remotely, offering flexible control.

[0057] In some embodiments, the traction mechanism 200 may optionally include a protective tube 250, in which a portion of the traction rope 240 is threaded, thereby extending the service life of the traction rope 240.

[0058] Please combine Figures 2-4 In this embodiment, optionally, the guiding mechanism 300 includes two fixed seats 310, a guide rope 320, and two guide slip rings 330. The two fixed seats 310 are both used to fix themselves to the tennis court 001 and are spaced apart in a preset direction 002. For example, the two fixed seats 310 are respectively close to the third side 013 and the fourth side 014. The guide rope 320 is installed between the two fixed seats 310 and extends approximately along the preset direction 002. The two guide slip rings 330 are both fixed to a side plate 1112 of the frame 111 and are spaced apart in the preset direction 002. Both guide slip rings 330 are slidably sleeved on the outside of the guide rope 320. Driven by the traction mechanism 200, the frame 111 slides along the preset direction 002. The guide slip ring 330 slides along with the frame 111, and slides along the extension direction of the guide rope 320. Under the guidance of the guide rope 320, the frame 111 slides more stably, and the movement direction of the frame 111 is less likely to deviate, and collisions and jamming are less likely to occur. By installing two guide slip rings 330 on the frame 111, and using the two guide slip rings 330 in conjunction with the guide rope 320 for guidance, the guiding effect is better.

[0059] It should be noted that the tension of the guide rope 320 can be adjusted as needed.

[0060] The tennis ball retrieval device provided in this embodiment can cooperate with a ball sweeping device. Before collecting the tennis balls, the ball sweeping device installed on the tennis court 001 can be used to push the tennis balls from the second side 012 to the first side 011 of the tennis court 001. The ball sweeping device and the side net or other obstruction structure of the first side 011 of the tennis court 001 define a set area of ​​a certain width. The width of this set area is approximately the same as the width of the ball retrieval cart 100, and the length is approximately the same as the length of the tennis court 001. In the width direction of the court, there is a gap between the center net and the set area, and the center net will not obstruct the movement of the ball retrieval cart 100 in the preset direction 002. Initially, the ball retrieval cart 100 is located within the set area and close to the third side 013, and the collection port 1114 of the ball retrieval cart 100 faces the fourth side 014. When collecting tennis balls, the traction mechanism 200 is activated. Driven by the traction rope 240, the ball-collecting cart 100 moves along the preset direction 002 from the third side 013 to the fourth side 014. The tennis balls can reach the ball-collecting wheel 120 from the collection port 1114. Under the action of the ball-collecting wheel 120, the tennis balls automatically enter the frame body 112. And under the action of the ball-collecting wheel 120, the tennis balls are blocked and will not bounce out of the frame body 112. Since the tennis balls on the movement path can be automatically collected during the movement of the ball-collecting cart 100 from the third side 013 to the fourth side 014, there is no need for repeated movement, the time consumption is short, and the tennis ball collection efficiency is high.

[0061] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tennis ball retrieval device, characterized in that, It includes a ball-collecting cart (100), a traction mechanism (200), and a guiding mechanism (300), wherein: The ball-collecting vehicle (100) is used to travel along a preset direction (002) on the tennis court (001); Both the traction mechanism (200) and the guiding mechanism (300) are installed on the tennis court (001). The traction mechanism (200) is connected to the ball-collecting cart (100), and the ball-collecting cart (100) and the guiding mechanism (300) are slidably connected along the preset direction (002). The traction mechanism (200) is used to drive the ball-collecting cart (100) to slide back and forth relative to the guiding mechanism (300) in the preset direction (002) so as to automatically collect tennis balls on the movement path through the ball-collecting cart (100).

2. The tennis ball retrieval device according to claim 1, characterized in that: The ball-collecting cart (100) includes a ball-collecting frame (110) and a ball-collecting wheel (120). The ball-collecting frame (110) is provided with a collection port (1114) and a collection cavity (1121). The ball-collecting wheel (120) is rotatably mounted on the ball-collecting frame (110) and is located between the collection port (1114) and the collection cavity (1121). The traction mechanism (200) is connected to the ball-collecting frame (110) in a transmission connection. The ball-collecting wheel (120) is used to rotate relative to the ball-collecting frame (110) when the ball-collecting frame (110) slides along a preset direction (002) so as to automatically push the tennis ball to the collection chamber (1121).

3. The tennis ball retrieval device according to claim 2, characterized in that: The ball-collecting frame (110) includes a frame (111) and a frame body (112). The collection port (1114) is opened on the frame (111). The frame body (112) is detachably connected to the frame (111). The collection cavity (1121) is disposed on the frame body (112). The ball-collecting wheel (120) is rotatably mounted on the frame (111). The traction mechanism (200) is drivenly connected to the frame (111) and is used to drive the frame body (112) to slide along the preset direction (002) through the frame (111).

4. The tennis ball retrieval device according to claim 3, characterized in that: The ball-collecting frame (110) also includes a handle (113), which is mounted on the frame body (112) and is rotatably connected to the frame body (112); when force is applied to the handle (113) to lift the frame body (112), the opening of the collecting cavity (1121) faces upward.

5. The tennis ball retrieval device according to claim 2, characterized in that: The ball-collecting wheel (120) includes two wheel bodies (121), axle (122), and multiple ball-picking blades (123). The two ends of the axle (122) are respectively connected to the two wheel bodies (121). Both wheel bodies (121) are rotatably mounted on the ball-collecting frame (110). The two wheel bodies (121) are used to move on the tennis court (001). The multiple ball-picking blades (123) are all fixed to the axle (122) and are arranged at intervals in the circumferential direction of the axle (122).

6. The tennis ball retrieval device according to claim 5, characterized in that: At least a portion of the ball-handling plate (123) is configured as an elastomer.

7. The tennis ball retrieval device according to any one of claims 1-6, characterized in that: The traction mechanism (200) includes a motor (210), a drive wheel (220), a directional wheel (230), and a traction rope (240). The motor (210) and the directional wheel (230) are both installed on the tennis court (001) and are spaced apart in a preset direction (002). The rotation shaft of the motor (210) is connected to the drive wheel (220). The traction rope (240) is tensioned outside the drive wheel (220) and the directional wheel (230) and is connected to the ball-collecting cart (100).

8. The tennis ball retrieval device according to claim 7, characterized in that: The traction mechanism (200) also includes a protective tube (250), which is sleeved on a portion of the traction rope (240).

9. The tennis ball retrieval device according to any one of claims 1-6, characterized in that: The guiding mechanism (300) includes two fixed seats (310) and a guide rope (320) installed between the two fixed seats (310). The two fixed seats (310) are both used to fix to the tennis court (001) and are arranged at intervals in the preset direction (002). The ball pick-up cart (100) and the guide rope (320) are slidably engaged in the preset direction (002).

10. The tennis ball retrieval device according to claim 9, characterized in that: The guiding mechanism (300) further includes a guide slip ring (330), which is sleeved on the outside of the guide rope (320) and connected to the ball-collecting vehicle (100).

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