Collecting device for tennis training and collecting method thereof

Abstract

The invention discloses a collecting device for tennis training and a collecting method thereof, and relates to the technical field of tennis ball collection, the collecting device comprises a fixed disc, the outer side of the fixed disc is fixedly connected with a pushing frame capable of pushing the device, the inner side of the fixed disc is fixedly connected with a connecting shaft, and the outer side of the connecting shaft is connected with a rolling disc in a nested mode; a fixing shaft is fixedly connected to the inner side of the rolling disc, and a collecting mechanism is arranged on the outer side of the fixing shaft. According to the collecting device for tennis training and the collecting method of the collecting device, the other part of gas in the gas supply cavity can push a movable push plate, so that the movable push plate moves along the interior of the gas supply cavity, and at the moment, the movable push plate can further drive a vibration plate to move back and forth through a movable rod under the action of the gas; and at the moment, impurities carried on the surfaces of the tennis balls can be further shaken off, and adhesion of the impurities on the tennis balls is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tennis ball collection, in particular to a collection device and a collection method for tennis ball training. Background Art

[0002] Tennis is a ball sport played on a rectangular court. Generally, when people are training in tennis, they will use training devices such as ball serving machines for individual practice to improve the continuity and stability of their shots. The tennis balls they hit will scatter irregularly on the ground. When the tennis balls inside the training equipment are used up, they need to be put back into the court. However, manual ball picking is inefficient, which is not convenient for continuous tennis training.

[0003] In order to overcome the above-mentioned defects, prior art one (a Chinese patent with announcement number CN209917179U and announcement date of 2020-01-10) is a tennis ball collection device for tennis training, comprising an outer cylinder, a plurality of universal wheels arranged at equal intervals are fixedly arranged at the bottom end of the outer cylinder, an inner cylinder is sleeved inside the outer cylinder, both sides of the inner cylinder are rotatably connected to the rolling wheels through connecting arms, one end of the limit platform is engaged with the slide, and the universal wheels are used to move the outer cylinder, which saves time and effort. By squeezing the collection box, the rolling wheels move down in the slide, driving the inner cylinder to move down, causing the return spring to deform, thereby squeezing the tennis balls on the ground into the inner cylinder through the mesh plate. As the number of tennis balls in the inner cylinder increases, the excess tennis balls enter the collection box for easy access, so that each tennis ball is used similarly many times during training, thereby extending the use of the tennis balls.

[0004] There is also prior art 2 (a Chinese patent with announcement number CN211301979U and announcement date of 2020-08-21), a tennis ball collecting device for tennis training, comprising a movable mounting frame, a swing rod, a ball sending mechanism and a collecting mechanism for collecting tennis balls, wherein the swing rod is vertically swingably mounted on the mounting frame; the ball sending mechanism is mounted on one side of the swing rod, and the collecting mechanism is fixedly mounted on the side of the ball sending mechanism away from the swing rod; the swing rod is swung so that its lower end sends the tennis ball to the ball sending mechanism, and the ball sending mechanism sends the tennis ball to the collecting mechanism, thereby realizing automatic collection of tennis balls, without the need for manual collection one by one, greatly improving the efficiency of tennis ball collection, saving time and effort.

[0005] Although the existing technology improves the collection efficiency of tennis balls, it is unable to clean impurities on the surface of the tennis balls when collecting them. The tennis balls carrying impurities are directly collected into the collection mechanism, which will contaminate other clean tennis balls and affect the subsequent feel of the tennis balls. At the same time, the existing collector cannot directly take out the collected tennis balls and place them into the collection box, which has certain limitations.

[0006] Therefore, we propose a collection device and a collection method for tennis training to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide a collection device and a collection method for tennis training, so as to solve the problem raised by the above-mentioned background technology that impurities on the surface of tennis balls in the current market cannot be cleaned, and tennis balls carrying impurities are directly collected into the collection mechanism, which will contaminate other clean tennis balls and affect the subsequent feel of the tennis balls. At the same time, the existing collector cannot directly take out the collected tennis balls and place them into the collection box, which has certain limitations.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a collection device for tennis training and a collection method thereof, comprising a fixed disk, a pushing frame which can push the device is fixedly connected to the outer side of the fixed disk, a connecting shaft is fixedly connected to the inner side of the fixed disk, and a rolling disk is nested and connected to the outer side of the connecting shaft, a fixed shaft is fixedly connected to the inner side of the rolling disk, a collecting mechanism is arranged on the outer side of the fixed shaft, a collecting rotating plate which is synchronously arranged with the collecting mechanism collects tennis balls, and a dust cleaning mechanism which can clean dust attached to the outer surface of the tennis balls is arranged on the collecting rotating plate.

[0009] Preferably, the inner end of the connecting shaft is fixedly connected to a collecting box, and a guide inner cavity for guiding the collected tennis balls is provided inside the collecting box, and the bottom of the guide inner cavity is arranged in an inclined structure.

[0010] Preferably, a discharge cavity is provided inside the connecting shaft corresponding to the lower side of the guide inner cavity, and a collecting box is fixedly connected to the outer side of the fixed disk at the corresponding position, and the collecting box is connected to the inside of the guide inner cavity through the discharge cavity.

[0011] Preferably, the collecting mechanism comprises a collecting rotating plate, the collecting rotating plate is nested and connected to the outside of the fixed shaft, and a torsion spring is fixedly connected between the side of the collecting rotating plate and the rolling disk.

[0012] Preferably, the collecting rotating plate is arranged in an arc-shaped structure, and is provided with a curved inward-bending portion bent upward, and the collecting rotating plate forms an elastic structure with the rolling disk through a torsion spring, and at the same time, the curved inward-bending portions arranged on the sides of two adjacent groups of collecting rotating plates can collide with the tennis ball, and the collecting rotating plate is arranged in a ring structure about the center point of the rolling disk, and the distance from the collecting rotating plate to the center point of the rolling disk is less than the maximum value of the radius of the rolling disk.

[0013] Preferably, the cleaning mechanism includes an air pump, which is fixedly connected at the center position of the fixed shaft, and a connecting hose is provided through the side of the air pump, an air supply cavity is opened inside the collecting rotary plate, and a cleaning air hole is opened on the outer surface of the collecting rotary plate, the other end of the connecting hose is connected to the inside of the air supply cavity, and a movable push plate is nested and connected inside the air supply cavity, and a movable rod is fixedly connected to the inner surface of the movable push plate, the movable rod is nested and connected to the upper surface of the collecting rotary plate, and a vibration plate is fixedly connected to the upper end of the movable rod, and a reset spring is fixedly connected between the lower surface of the vibration plate and the upper surface of the collecting rotary plate, and the reset spring is wound around the outside of the movable rod.

[0014] Preferably, the side of the movable push plate is in contact with the inner wall of the air supply cavity, and the movable push plate forms a sliding structure with the air supply cavity through the gas output by the air pump, and the movable rod forms a sliding structure with the collecting rotating plate through the movable push plate.

[0015] Preferably, the vibration plate forms an elastic structure with the collection rotating plate through a return spring, and the vibration plate is arranged in an inwardly concave arc structure.

[0016] A collection method of a collection device for tennis training, the collection method comprising the following steps: S1: The user manually pushes the push frame, so that the rolling plate contacts the ground and rolls. At this time, the collecting rotating plate contacts the scattered tennis balls, and the collecting rotating plate rotates and unfolds. The tennis balls enter the interior of the device through the contact effect of the curved inner buckle portion set on the side of the collecting rotating plate, thereby completing the preliminary collection of the tennis balls. At the same time, the collecting rotating plate can be driven by the elastic force of the torsion spring to rotate and reset, so as to prevent the collected tennis balls from falling out again. S2: When collecting tennis balls, the air pump is started synchronously to intermittently supply air to the air supply chamber. At this time, part of the air in the air supply chamber can be discharged from the clean air holes opened on the outer surface of the collection rotating plate, so that the tennis balls can be initially blown and cleaned when they are collected to reduce the dust adhesion on the surface of the tennis balls. Another part of the air in the air supply chamber can drive the vibration plate to move back and forth, so as to beat the collected tennis balls, further reducing the adhesion of impurities on the tennis balls. S3: When the rolling disk is continuously rotating, it will synchronously drive the collection rotating plate to rotate, thereby synchronously driving the tennis ball to rotate. When the tennis ball rotates to the top of the device along with the collection rotating plate, the tennis ball falls into the collection box under the action of its own gravity, and is guided by the inclined guide inner cavity inside the collection box, and is collected into the collection box through the discharge cavity. At this time, the tennis ball can be directly collected into the collection box, and the staff does not need to manually take out the tennis ball inside the device, which further improves the collection efficiency of the tennis ball.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) The user manually pushes the push frame, so that the push frame drives the fixed plate to move. At this time, the fixed plate can synchronously push the rolling plate through the connecting shaft. At this time, the rolling plate contacts the ground and rolls. The rolling rolling plate can synchronously drive the collection rotating plate to rotate, thereby collecting the scattered tennis balls.

[0018] (2) When the collecting rotating plate and the scattered tennis balls come into contact with each other, the tennis balls contact the collecting rotating plate, causing the collecting rotating plate to rotate along the fixed axis and causing the torsion spring to elastically deform. At this time, the collecting rotating plate rotates and expands, and the tennis balls enter the interior of the device through the contact effect of the curved inner buckle portion set on the side of the collecting rotating plate, thereby completing the initial collection of the tennis balls. At the same time, when the collecting rotating plate is not affected by the contact effect of the tennis balls, the collecting rotating plate can be driven by the elastic force of the torsion spring itself to rotate and reset, thereby reducing the possibility of the tennis balls falling out again.

[0019] (3) When collecting tennis balls, the air pump is started synchronously to supply air intermittently. The air pump can supply air to the air supply cavity opened on the inner side of the collection rotating plate through the side hose. At this time, part of the gas in the air supply cavity can be discharged from the clean air holes opened on the outer surface of the collection rotating plate, so that the tennis balls can be initially blown and cleaned when they are collected, thereby reducing the dust adhesion on the surface of the tennis balls.

[0020] (4) Another part of the gas inside the air supply chamber can push the movable push plate, so that the movable push plate moves along the inside of the air supply chamber. At this time, the movable push plate can further drive the vibration plate to move back and forth through the moving rod under the action of the gas, thereby beating the collected tennis balls. At this time, the impurities carried on the surface of the tennis balls can be further shaken off, reducing the adhesion of impurities on the tennis balls.

[0021] (5) When the rolling disk is continuously rotating, it will synchronously drive the collection rotating plate to rotate. At this time, the curved inner buckle portion set on the side of the collection rotating plate can shield the collected tennis balls, thereby synchronously driving the tennis balls to rotate. When the tennis balls rotate to the top of the device along with the collection rotating plate, the curved inner buckle portion cannot shield the tennis balls. The tennis balls will fall from the top of the device under the action of their own gravity and fall into the collection box. After being guided by the inclined guide cavity inside the collection box, they are collected into the collection box through the discharge cavity. At this time, the tennis balls can be directly collected into the collection box without the need for staff to manually take out the tennis balls inside the device, which further improves the collection efficiency of the tennis balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2This is a schematic diagram of the three-dimensional structure of the collection box of the present invention; Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the aggregate box of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the rolling disk of the present invention; Figure 5 The schematic diagram of the three-dimensional structure of the collecting rotating plate of the present invention is shown; Figure 6 The present invention is a schematic diagram of a three-dimensional cross-sectional structure of a collection rotating plate; Figure 7 It is a schematic diagram of the three-dimensional structure of the air pump of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the moving rod of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the vibration plate of the present invention.

[0023] In the figure: 1. fixed plate; 2. connecting shaft; 3. pushing frame; 4. air supply chamber; 5. rolling plate; 6. discharge chamber; 7. collecting box; 8. collecting box; 9. guiding inner chamber; 10. collecting rotating plate; 11. air pump; 12. fixed shaft; 13. torsion spring; 14. connecting hose; 15. cleaning air hole; 16. moving push plate; 17. bent inner buckle; 18. moving rod; 19. reset spring; 20. vibration plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1: Figure 1-Figure 4The technical scheme shown in the present invention provides the following technical scheme: a collection device for tennis training and a collection method thereof, disclosing a collection box 8, through the guiding effect of the guide inner cavity 9 inside the collection box 8, there is no need for staff to manually take out the tennis balls inside the device, which further improves the collection efficiency of tennis balls: the outer side of the fixed disk 1 is fixedly connected with a pushing frame 3 that can push the device, and the inner side of the fixed disk 1 is fixedly connected with a connecting shaft 2, and the outer side of the connecting shaft 2 is nested with a rolling disk 5, the inner end of the connecting shaft 2 is fixedly connected with the collection box 8, and the interior of the collection box 8 is provided with a guide inner cavity 9 for guiding the collected tennis balls, and the bottom of the guide inner cavity 9 is arranged in an inclined structure, and a discharge cavity 6 is provided inside the connecting shaft 2 corresponding to the lower side of the guide inner cavity 9, and a collection box 7 is fixedly connected to the outer side of the fixed disk 1 at the corresponding position, and the collection box 7 is connected to the inside of the guide inner cavity 9 through the discharge cavity 6.

[0026] When the rolling disk 5 continues to rotate, it will synchronously drive the collection rotating plate 10 to rotate. At this time, the curved inner buckle 17 set on the side of the collection rotating plate 10 can cover the collected tennis balls, thereby synchronously driving the tennis balls to rotate. When the tennis balls rotate to the top of the device along with the collection rotating plate 10, the curved inner buckle 17 cannot cover the tennis balls. The tennis balls will fall from the top of the device under the action of their own gravity, and fall into the collection box 8. After being guided by the inclined guide cavity 9 inside the collection box 8, they are collected into the collection box 7 through the discharge cavity 6. At this time, the tennis balls can be directly collected into the collection box 7 without the need for staff to manually take out the tennis balls inside the device, further improving the collection efficiency of the tennis balls.

[0027] Embodiment 2: Figure 1 , Figure 2 , Figure 4 and Fig. 9The technical solution shown in the figure, the present invention provides the following technical solutions: a collection device for tennis training and a collection method thereof, disclosing a collection mechanism, through which scattered tennis balls can be collected and the possibility of tennis balls falling out again can be reduced: a fixed shaft 12 is fixedly connected to the inner side of the rolling disk 5, a collection mechanism is arranged on the outer side of the fixed shaft 12, and a collection rotating plate 10 is synchronously arranged with the collection mechanism to collect tennis balls, the collection mechanism includes a collection rotating plate 10, the collection rotating plate 10 is nested and connected to the outer side of the fixed shaft 12, and the collection rotating plate A torsion spring 13 is fixedly connected between the side of 10 and the rolling disk 5, the collecting rotating plate 10 is arranged in an arc-shaped structure, and the collecting rotating plate 10 is provided with a curved inner buckle portion 17 bent upward, and the collecting rotating plate 10 and the rolling disk 5 form an elastic structure through the torsion spring 13, and at the same time, the curved inner buckle portions 17 provided on the sides of two adjacent groups of collecting rotating plates 10 can collide with the tennis ball, the collecting rotating plate 10 is arranged in a ring structure about the center point of the rolling disk 5, and the distance from the collecting rotating plate 10 to the center point of the rolling disk 5 is less than the maximum value of the radius of the rolling disk 5.

[0028] The user manually pushes the pushing frame 3, so that the pushing frame 3 drives the fixed plate 1 to move. At this time, the fixed plate 1 can synchronously push the rolling plate 5 through the connecting shaft 2. At this time, the rolling plate 5 contacts the ground and rolls. The rolling rolling plate 5 can synchronously drive the collecting turntable 10 to rotate, thereby collecting the scattered tennis balls. When the collecting turntable 10 conflicts with the scattered tennis balls, the tennis balls conflict with the collecting turntable 10, causing the collecting turntable 10 to rotate along the fixed axis 12, and causing the torsion spring 13 to elastically deform. At this time, the collecting turntable 10 rotates and unfolds, and the tennis balls enter the interior of the device through the conflicting action of the curved inner buckle 17 set on the side of the collecting turntable 10, thereby completing the preliminary collection of the tennis balls. At the same time, when the collecting turntable 10 is not affected by the conflicting action of the tennis balls, the collecting turntable 10 can be driven by the elastic action force of the torsion spring 13 itself to rotate and reset, thereby reducing the possibility of the tennis balls falling out again.

[0029] Embodiment 3: Figure 2 , Figure 5-Figure 9 The technical solution shown in the figure, the present invention provides the following technical solution: a collection device and a collection method for tennis training, a dust cleaning mechanism is disclosed, through the dust cleaning mechanism: The collecting rotating plate 10 is provided with a dust cleaning mechanism for cleaning the dust attached to the outer surface of the tennis ball. The dust cleaning mechanism includes an air pump 11, which is fixedly connected to the center of the fixed shaft 12, and a connecting hose 14 is provided through the side of the air pump 11. An air supply cavity 4 is provided inside the collecting rotating plate 10, and a cleaning air hole 15 is provided on the outer surface of the collecting rotating plate 10. The other end of the connecting hose 14 is connected to the inside of the air supply cavity 4, and a movable push plate 16 is nested and connected inside the air supply cavity 4, and a movable rod 18 is fixedly connected to the inner surface of the movable push plate 16, and the movable rod 18 is nested and connected to the collecting rotating plate 10. , and the upper end of the moving rod 18 is fixedly connected with a vibration plate 20, and a return spring 19 is fixedly connected between the lower surface of the vibration plate 20 and the upper surface of the collecting rotary plate 10, and the return spring 19 is wound around the outer side of the moving rod 18, the side of the moving push plate 16 is in contact with the inner wall of the air supply chamber 4, and the moving push plate 16 forms a sliding structure with the air supply chamber 4 through the gas output by the air pump 11, and the moving rod 18 forms a sliding structure with the collecting rotary plate 10 through the moving push plate 16, the vibration plate 20 forms an elastic structure with the collecting rotary plate 10 through the return spring 19, and the vibration plate 20 is arranged in an inward concave arc structure.

[0030] When collecting tennis balls, the air pump 11 is started synchronously to supply air intermittently. The air pump 11 can supply air to the air supply chamber 4 opened on the inner side of the collecting rotary plate 10 through the side hose. At this time, a part of the gas inside the air supply chamber 4 can be discharged from the cleaning air holes 15 opened on the outer surface of the collecting rotary plate 10, so that the tennis balls can be preliminarily blown and cleaned when collecting them to reduce the dust adhesion on the surface of the tennis balls. Another part of the gas inside the air supply chamber 4 can push the movable push plate 16 to move along the inside of the air supply chamber 4. At this time, the movable push plate 16 can further drive the vibration plate 20 to move back and forth through the moving rod 18 under the action of the gas, so as to beat the collected tennis balls. At this time, the impurities carried on the surface of the tennis balls can be further shaken off to reduce the adhesion of impurities on the tennis balls.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A collection device for tennis training, comprising a fixed plate (1), the outer side of the fixed plate (1) being fixedly connected to a pushing frame (3) capable of pushing the device, the inner side of the fixed plate (1) being fixedly connected to a connecting shaft (2), and the outer side of the connecting shaft (2) being nestedly connected to a rolling plate (5), characterized in that: A fixed shaft (12) is fixedly connected to the inner side of the rolling disc (5), and a collecting mechanism is provided on the outer side of the fixed shaft (12). The collecting mechanism collects the tennis balls synchronously with the collecting rotating plate (10), and a dust cleaning mechanism is provided on the collecting rotating plate (10) for cleaning the dust attached to the outer surface of the tennis balls.

2. A collection device for tennis training according to claim 2, characterized in that: The inner end of the connecting shaft (2) is fixedly connected to a collecting box (8), and a guide inner cavity (9) for guiding the collected tennis balls is provided inside the collecting box (8), and the bottom of the guide inner cavity (9) is arranged in an inclined structure.

3. A collection device for tennis training according to claim 2, characterized in that: A discharge cavity (6) is provided inside the connecting shaft (2) corresponding to the lower side of the guide inner cavity (9), and a collecting box (7) is fixedly connected to the outside of the fixed disk (1) at the corresponding position, and the collecting box (7) is connected to the inside of the guide inner cavity (9) through the discharge cavity (6).

4. A collection device for tennis training according to claim 1, characterized in that: The collecting mechanism comprises a collecting rotating plate (10), the collecting rotating plate (10) being nested and connected to the outside of a fixed shaft (12), and a torsion spring (13) being fixedly connected between the side of the collecting rotating plate (10) and the rolling disc (5).

5. A collection device for tennis training according to claim 4, characterized in that: The collecting rotating plate (10) is arranged in an arc-shaped structure, and is provided with a curved inner buckle portion (17) that is bent upward, and the collecting rotating plate (10) forms an elastic structure with the rolling disk (5) via a torsion spring (13), and the curved inner buckle portions (17) arranged on the sides of two adjacent groups of collecting rotating plates (10) can contact the tennis ball, and the collecting rotating plate (10) is arranged in an annular structure with respect to the center point of the rolling disk (5), and the distance from the collecting rotating plate (10) to the center point of the rolling disk (5) is less than the maximum value of the radius of the rolling disk (5).

6. A collection device for tennis training according to claim 1, characterized in that: The dust cleaning mechanism comprises an air pump (11), the air pump (11) is fixedly connected at the center position of the fixed shaft (12), and a connecting hose (14) is provided through the side of the air pump (11), an air supply chamber (4) is provided inside the collecting rotating plate (10), and a cleaning air hole (15) is provided on the outer surface of the collecting rotating plate (10), the other end of the connecting hose (14) is connected through the inside of the air supply chamber (4), and a movable push plate (16) is nested and connected inside the air supply chamber (4), and a movable rod (18) is fixedly connected to the inner surface of the movable push plate (16), the movable rod (18) is nested and connected to the upper surface of the collecting rotating plate (10), and the upper end of the movable rod (18) is fixedly connected to a vibration plate (20), and a reset spring (19) is fixedly connected between the lower surface of the vibration plate (20) and the upper surface of the collecting rotating plate (10), and the reset spring (19) is wound around the outer side of the movable rod (18).

7. A collection device for tennis training according to claim 6, characterized in that: The side of the movable push plate (16) is in contact with the inner wall of the air supply chamber (4), and the movable push plate (16) forms a sliding structure with the air supply chamber (4) through the gas output by the air pump (11), and the movable rod (18) forms a sliding structure with the collection rotating plate (10) through the movable push plate (16).

8. A collection device for tennis training according to claim 6, characterized in that: The vibration plate (20) forms an elastic structure with the collection rotating plate (10) via a return spring (19), and the vibration plate (20) is arranged in an inwardly concave arc structure.

9. A collection method of a collection device for tennis training, characterized in that: The collection method comprises the following steps: S1: The user manually pushes the push frame (3) so that the rolling plate (5) contacts the ground and starts rolling. At this time, the collecting rotating plate (10) and the scattered tennis balls come into contact with each other, and the collecting rotating plate (10) rotates and unfolds. The tennis balls enter the interior of the device through the contact effect of the curved inner buckle (17) provided on the side of the collecting rotating plate (10), thereby completing the preliminary collection of the tennis balls. At the same time, the collecting rotating plate (10) can be driven by the elastic force of the torsion spring (13) to rotate and reset, thereby preventing the collected tennis balls from falling out again. S2: When collecting tennis balls, the air pump (11) is synchronously started to intermittently supply air to the inside of the air supply chamber (4). At this time, a part of the air in the air supply chamber (4) can be discharged from the cleaning air holes (15) opened on the outer surface of the collection rotating plate (10), so that the tennis balls can be initially blown and cleaned when they are collected, thereby reducing the dust adhesion on the surface of the tennis balls. Another part of the air in the air supply chamber (4) can drive the vibration plate (20) to move back and forth, thereby beating the collected tennis balls, further reducing the adhesion of impurities on the tennis balls; S3: When the rolling disc (5) is continuously rotating, it will synchronously drive the collection rotating plate (10) to rotate, thereby synchronously driving the tennis ball to rotate. When the tennis ball rotates to the top of the device along with the collection rotating plate (10), the tennis ball falls into the interior of the collection box (8) under the action of its own gravity, and is guided by the inclined guide cavity (9) inside the collection box (8) and collected into the interior of the collection box (7) through the discharge cavity (6). At this time, the tennis ball can be directly collected into the collection box (7) without the need for the staff to manually take out the tennis ball inside the device, thereby further improving the collection efficiency of the tennis ball.

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