Table tennis bounce testing device and use method thereof

Abstract

The invention relates to the technical field of ping-pong ball testing, in particular to a ping-pong ball bounce testing device and a using method thereof.The ping-pong ball bounce testing device comprises a testing box, and one end of the testing box is provided with an opening. According to the ping-pong bounce testing device and the using method thereof, the ping-pong is made to move in an inclined track through the inclined rail, the ping-pong falling to the ground synchronously and horizontally moves under the action of rolling potential energy when bouncing upwards, namely bouncing forwards, the height of the ping-pong with qualified elasticity exceeds the height of the ping-pong containing coaming, and the ping-pong falls into the inner side of the ping-pong containing coaming; compared with the prior art that a collecting box is utilized for active displacement to intercept and collect the table tennis balls, the ball containing coaming for collecting does not move, but controls the bounce track of the table tennis balls, active steps needed by collecting are reduced, qualified table tennis balls can be stably collected, and the collecting efficiency is improved. The qualified table tennis balls can be effectively prevented from colliding with the collecting component, and the collecting stability is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of table tennis testing, in particular to a table tennis ball bounce testing device and a use method thereof. Background Art

[0002] With the popularization and development of sports, such as table tennis, the requirements for ball detection accuracy and efficiency are getting higher and higher. There is currently no effective detection method. For competition balls, they need to be manually screened from a large number of products, and the quality cannot be guaranteed. Testing the elasticity of the ball has become a problem. Without understanding the elasticity of the ball, it is impossible to determine whether the ball can be used.

[0003] The existing patent (publication number: CN114798447B) discloses a table tennis ball bounce test device that is convenient to collect. The invention comprises a body (101) that is fixedly connected to a test plate (102); a storage box (103) that can be equipped with table tennis balls (104); a collection box (105) that can collect table tennis balls (104); and a collection mechanism (200) that drives a cam slider mechanism through a motor (201) to enable the collection box (105) to collect the table tennis balls (104) that fall freely. The invention uses a collecting mechanism (200) to drive a motor (201) to drive a cam slider to move a collecting box (105) left and right. When a table tennis ball (104) falls freely from a storage box (103), during the rebound process, the elastic force of the table tennis ball (104) reaches the requirement, and the rebound height exceeds the position of the collecting box (105). The collecting box (105) moves leftward, and the table tennis ball (104) falls into the collecting box (105). The elastic force of the table tennis ball (104) does not reach the requirement, and the rebound height is lower than the position of the collecting box (105). The table tennis ball falls onto a testing board (102), thereby achieving sorting and collection. The above-mentioned prior art intercepts and collects the bounced table tennis ball by moving the collecting box, which requires both to reach a suitable position to achieve the purpose, is easily disturbed, has poor collection stability, and is prone to excessive friction during the process of releasing the table tennis ball, thereby interfering with the bounce detection.

[0004] In view of this, we propose a table tennis ball bounce testing device and a method for using the same. Summary of the invention

[0005] The purpose of the present invention is to provide a table tennis ball bounce test device and a method of using the same, so as to solve the problem that the prior art proposed in the above background technology uses a collection box to move to intercept and collect the bounced table tennis ball, which requires both to reach a suitable position to be realized, is easily disturbed, has poor collection stability, and is prone to excessive friction during the release of the table tennis ball, which interferes with the bounce detection. To achieve the above purpose, the present invention provides the following technical solutions: A table tennis ball bounce test device, comprising a test box, one end of the test box is set as an opening, and the end of the test box opposite to the opening is set as an upper support plate, a ball box is fixedly arranged on the upper support plate, and an inclined rail is fixedly connected to the end of the ball box close to the opening, and a tester matching the inclined rail is arranged on the test box.

[0006] The tester includes a semicircular box fixedly connected to the opening, and a ball-pocketing plate with a conical structure is fixedly connected to the inner wall of the semicircular box. A groove is opened on the inner top wall of the test box, and a flap is rotatably connected in the groove. A cam that cooperates with the flap is rotatably connected in the groove.

[0007] The inner bottom wall of the semicircular box is provided with a leakage groove.

[0008] The ball box and the ramp are provided with ball distribution components.

[0009] Preferably, the ball dividing assembly includes a semicircular shell arranged at the connection between the ball box and the inclined rail, and the semicircular shell is connected to the ball box and the inclined rail. A rotating wheel is rotatably connected inside the semicircular shell, and an annular groove is provided on the outer ring of the rotating wheel. A plurality of partitions are fixedly arranged in the annular groove, and the plurality of partitions divide the annular groove into a plurality of ball-loading grooves.

[0010] The semicircular shell, the rotating wheel and the partition are provided with negative pressure release components.

[0011] Preferably, the negative pressure release assembly includes a rotating cavity opened on the end face of the wheel, and a turbine is rotatably connected in the rotating cavity. A circular groove corresponding to the turbine and the wheel is opened on the inner wall of the semicircular shell, and the turbine is fixedly connected along the circular groove through a bracket.

[0012] An L-shaped airway is provided inside the partition and the rotating wheel, and the airway is connected to the rotating cavity. A plurality of suction holes connected to the airway are provided on the surface of the partition, and the plurality of suction holes are distributed in a single row and at equal distances along the partition.

[0013] A special-shaped slide groove connected to the suction hole is provided inside the partition and the rotating wheel, and the special-shaped slide groove passes through the side surface of the rotating wheel and corresponds to the circular groove. A special-shaped plug for closing the suction hole is slidably connected inside the special-shaped slide groove, and a spring is arranged in the special-shaped slide groove. The spring pushes the special-shaped plug to move away from the suction hole, and the end of the special-shaped plug penetrates the special-shaped slide groove and extends into the circular groove.

[0014] A plurality of inclined platforms matched with the special-shaped latch pins are fixedly arranged in the circular groove, and the plurality of inclined platforms are distributed in a stepped manner along a circular track.

[0015] Preferably, a cotton pad is fixedly provided on the inner surface of the ball pocket panel.

[0016] Preferably, a qualified outlet that matches with the ball pocket enclosure is opened on the side surface of the semicircular box.

[0017] Preferably, the inner bottom wall of the ball box is fixedly provided with a slope matching the ball loading groove.

[0018] Preferably, a rubber surface matching the suction hole is fixedly provided on the end of the special-shaped plug.

[0019] A method for using a table tennis ball bounce test device comprises the following steps:

[0020] S1. Put the table tennis balls to be tested into the ball box, and the table tennis balls inside the ball box roll out along the inclined track into the test box. During this process, the table tennis balls move along the inclined track due to rolling. After landing, the table tennis balls are affected by the rolling potential energy and move horizontally when they bounce up, that is, they bounce forward. The height of the table tennis balls with qualified elasticity exceeds the ball pocket enclosure and falls into the inner side of the ball pocket enclosure, while the unqualified table tennis balls fall into the semicircular box and are discharged through the drain groove;

[0021] S2. When the ball box releases the ping-pong ball into the inclined rail, the rotating wheel is controlled to rotate. The ping-pong ball first enters the semicircular shell and rolls into the ball loading slot. The ping-pong ball in the slot moves in a circle following the rotating wheel. After half a circle, it rolls into the inclined rail. As the rotating wheel rotates, the ping-pong ball continuously and intermittently performs a landing test.

[0022] S3. During the rotation of the wheel, the turbine draws suction in the rotating chamber, and uses the airway and suction holes to generate suction along the surface of the partition, so that the ping-pong ball in the ball-carrying slot is pulled by the airflow to be centered. As the wheel continues to rotate, the special-shaped pins in synchronous circular motion contact the ramp and are squeezed and moved to close the suction holes, thereby releasing the constraints of the airflow on the ping-pong ball. Moreover, the special-shaped pins are closed one by one in the order from the axis of the wheel to the outside, so that the ping-pong ball in the ball-carrying slot is gradually released from the inside to the outside.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In the present invention, the ping-pong ball is made to move in an inclined trajectory by means of an inclined rail. After landing, the ping-pong ball is affected by the rolling potential energy and moves horizontally synchronously when bouncing, that is, bounces forward. The height of the ping-pong ball with qualified elasticity exceeds the ball pocket enclosure and falls into the inner side of the ball pocket enclosure, while the unqualified ping-pong ball falls into the semicircular box. Compared with the existing method of actively displacing the collection box to intercept the ping-pong ball for collection, the ball pocket enclosure for collection does not move but controls the bouncing trajectory of the ping-pong ball, thereby reducing the active steps required for collection, so that the qualified ping-pong ball can be stably collected, and the collision between the qualified ping-pong ball and the collection component can be effectively avoided, thereby ensuring the stability of collection.

[0025] In the present invention, by controlling the rotating wheel to rotate, the ping-pong ball first enters the semicircular shell and rolls into the ball loading groove. The ping-pong ball in the groove follows the rotating wheel to perform circular motion, and rolls into the inclined rail after half a circle. As the rotating wheel rotates, the ping-pong ball is continuously and intermittently tested for falling to the ground. Compared with the use of a pull-out separation structure to extract the ping-pong ball, after the above-mentioned rotating wheel structure extracts the ping-pong ball, the ball will not bounce inside it, and the ping-pong ball will not be pinched by the moving parts, thereby reducing the adverse effects of the bounce on subsequent drop tests and improving the detection accuracy.

[0026] In the present invention, suction is performed in the rotating cavity by a turbine, and suction is generated along the surface of the partition by the airway and the suction hole, so that the ping-pong ball in the ball-carrying slot is pulled by the airflow to be centered. As the rotating wheel continues to rotate, the special-shaped pins in synchronous circular motion contact the inclined platform and are squeezed and moved to close the suction hole, thereby releasing the constraint of the airflow on the ping-pong ball. Moreover, the special-shaped pins are closed one by one in the order from the axis of the rotating wheel to the outside, so that the ping-pong ball in the ball-carrying slot is gradually released from the inside to the outside. Compared with directly releasing the ping-pong ball from the hole, the above-mentioned airflow traction structure can keep the ping-pong ball centered in the track without contacting the side wall, thereby minimizing the contact between the ping-pong ball and other objects and the friction interference generated, and finally releasing the alignment of the ball-carrying slot and the inclined rail to avoid the bounce of the ball affecting the detection process when there is a drop between the slot body and the inclined rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a sectional view of the three-dimensional structure of the present invention;

[0029] Figure 3 It is an exploded view of the semicircular box and the ball pocket enclosure of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the groove and the flap of the present invention;

[0031] Figure 5It is a three-dimensional structural schematic diagram of the ball box and the ramp of the present invention;

[0032] Figure 6 It is a three-dimensional structural cross-sectional view of the ball box and the ramp of the present invention;

[0033] Figure 7 The exploded view of the semicircular shell and the runner of the present invention;

[0034] Figure 8 For the present invention Figure 7 The enlarged view of point A in the middle;

[0035] Fig. 9 An exploded view of the rotary cavity and turbine of the present invention;

[0036] Fig.10 is a three-dimensional structural cross-sectional view of the rotating wheel of the present invention;

[0037] Fig.11 For the present invention Fig.10 The enlarged view of point B in the middle;

[0038] Fig.12 It is a three-dimensional structural cross-sectional view of the airway of the present invention.

[0039] In the figure: 1. test box; 2. opening; 3. upper support plate; 4. ball box; 5. ramp; 6. tester; 61. semicircular box; 62. ball pocket panel; 63. groove; 64. flap; 65. cam; 66. leakage groove; 67. ball distribution assembly; 671. semicircular shell; 672. rotating wheel; 673. annular groove; 674. partition; 675. ball loading groove; 676. negative pressure release assembly; 6761. rotating chamber; 6762. turbine; 6763. circular groove; 6764. airway; 6765. suction hole; 6766. special-shaped slide groove; 6767. special-shaped latch; 6768. spring; 6769. inclined table. DETAILED DESCRIPTION

[0040] 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 technical staff in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 12The present invention provides a technical solution: a table tennis ball bounce test device, comprising a test box 1, one end of the test box 1 is set as an opening 2, and the end of the test box 1 opposite to the opening 2 is set as an upper support plate 3, a ball box 4 is fixedly arranged on the upper support plate 3, and the end of the ball box 4 close to the opening 2 is fixedly connected with an inclined rail 5. When testing, the table tennis ball to be tested is put into the ball box 4, and the table tennis ball inside the ball box 4 rolls out along the inclined rail 5 into the test box 1, and a tester 6 matched with the inclined rail 5 is arranged on the test box 1.

[0042] The tester 6 includes a semicircular box 61 fixedly connected to the opening 2, and a ball-catching panel 62 with a conical structure is fixedly connected to the inner wall of the semicircular box 61. A groove 63 is provided on the inner top wall of the test box 1, and a flap 64 is rotatably connected in the groove 63. A cam 65 matched with the flap 64 is rotatably connected in the groove 63. During the rotation of the cam 65, the flap 64 is intermittently lifted, so that the table tennis ball at the bottom of the test box 1 rolls into the semicircular box 61 along the inclined flap 64, so as to avoid the table tennis ball from piling up at the bottom of the test box 1 and interfering with the subsequent bounce detection of the table tennis ball.

[0043] The inner bottom wall of the semicircular box 61 is provided with a leakage groove 66. The ping-pong ball in the inclined track 5 moves along the inclined track 5 due to rolling. After landing, the ping-pong ball is affected by the rolling potential energy and moves horizontally when bouncing, that is, bounces forward. The height of the ping-pong ball with qualified elasticity exceeds the ball pocket enclosure 62 and falls into the inner side of the ball pocket enclosure 62, while the unqualified ping-pong ball falls into the semicircular box 61 and is discharged through the leakage groove 66.

[0044] The ball box 4 and the ramp 5 are provided with a ball distribution assembly 67 .

[0045] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, the ball distribution assembly 67 includes a semicircular shell 671 arranged at the connection between the ball box 4 and the inclined rail 5, and the semicircular shell 671 is connected to the ball box 4 and the inclined rail 5. A rotating wheel 672 is rotatably connected in the semicircular shell 671, and an annular groove 673 is provided on the outer ring of the rotating wheel 672. A plurality of partitions 674 are fixedly arranged in the annular groove 673, and the plurality of partitions 674 divide the annular groove 673 into a plurality of ball-loading grooves 675 to control the rotating wheel 672 to rotate. When the ball box 4 releases the ping-pong ball into the inclined rail 5, the ping-pong ball first enters the semicircular shell 671 and rolls into the ball-loading groove 675. The ping-pong ball in the groove performs a circular motion with the rotating wheel 672, and rolls into the inclined rail 5 after half a circle. As the rotating wheel 672 rotates, the ping-pong ball is continuously and intermittently tested for landing.

[0046] A negative pressure release assembly 676 is provided on the semicircular shell 671 , the rotating wheel 672 and the partition 674 .

[0047] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, the negative pressure release component 676 includes a rotating chamber 6761 opened on the end face of the rotating wheel 672, and a turbine 6762 is rotatably connected in the rotating chamber 6761. A circular groove 6763 corresponding to the turbine 6762 and the rotating wheel 672 is opened on the inner wall of the semicircular shell 671. The turbine 6762 is fixedly connected along the circular groove 6763 through a bracket. During the rotation of the rotating wheel 672, the turbine 6762 performs suction in the rotating chamber 6761.

[0048] An L-shaped air duct 6764 is provided inside the partition 674 and the rotating wheel 672, and the air duct 6764 is connected to the rotating chamber 6761. A plurality of suction holes 6765 connected to the air duct 6764 are provided on the surface of the partition 674, and the plurality of suction holes 6765 are distributed in a single row and equidistantly along the partition 674. The turbine 6762 generates suction along the surface of the partition 674 by utilizing the air duct 6764 and the suction holes 6765, so that the ping-pong ball in the ball-carrying slot 675 is pulled by the airflow to be centrally positioned.

[0049] A special-shaped slide groove 6766 connected to the suction hole 6765 is provided inside the partition 674 and the rotating wheel 672, and the special-shaped slide groove 6766 passes through the side surface of the rotating wheel 672 and corresponds to the circular groove 6763. The interior of the special-shaped slide groove 6766 is slidably connected with a special-shaped pin 6767 for closing the suction hole 6765, and a spring 6768 is arranged inside the special-shaped slide groove 6766. The spring 6768 pushes the special-shaped pin 6767 to move away from the suction hole 6765, and the end of the special-shaped pin 6767 penetrates into the special-shaped slide groove 6766 and extends to the circular groove 6763.

[0050] A plurality of inclined platforms 6769 matched with the special-shaped plugs 6767 are fixedly arranged in the circular groove 6763, and the plurality of inclined platforms 6769 are distributed in a stepped manner along the circular trajectory. When the rotating wheel 672 rotates, the special-shaped plugs 6767 that synchronize the circular motion contact the inclined platforms 6769 and are squeezed and moved to close the suction holes 6765, thereby releasing the constraints of the airflow on the ping-pong ball, and the special-shaped plugs 6767 are closed one by one in the order from the axis of the rotating wheel 672 to the outside, so that the ping-pong ball in the ball-carrying groove 675 is gradually released from the inside to the outside.

[0051] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, a cotton pad is fixedly provided on the inner surface of the ball pocket panel 62, and the table tennis balls that are bounced into the ball pocket panel 62 fall on the cotton pad to avoid rebounding, thereby ensuring that qualified table tennis balls can be stably collected.

[0052] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, the side surface of the semicircular box 61 is provided with a qualified outlet that matches the ball pocket enclosure 62. After the table tennis ball with qualified elasticity falls into the ball pocket enclosure 62, it can be discharged from the equipment along the qualified outlet so that the operator can collect the table tennis ball.

[0053] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, the inner bottom wall of the ball box 4 is fixedly provided with a slope that matches the ball loading groove 675, and the table tennis ball placed in the ball box 4 can roll along the slope to the ball loading groove 675 by itself.

[0054] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 12 As shown, the end of the special-shaped plug 6767 is fixedly provided with a rubber surface that matches the suction hole 6765. When the special-shaped plug 6767 is inserted into the suction hole 6765, the rubber surface can be tightly fitted with the hole wall to prevent air leakage in the gap.

[0055] A method for using a table tennis ball bounce test device comprises the following steps:

[0056] S1. Put the table tennis ball to be tested into the ball box 4, and the table tennis ball inside the ball box 4 rolls out along the inclined track 5 into the test box 1. In this process, the table tennis ball moves along the inclined track 5 due to rolling. After landing, the table tennis ball is affected by the rolling potential energy and moves horizontally when bouncing, that is, it bounces forward. The height of the table tennis ball with qualified elasticity exceeds the ball pocket enclosure 62 and falls into the inner side of the ball pocket enclosure 62, while the unqualified table tennis ball falls into the semicircular box 61 and is discharged through the leakage groove 66.

[0057] S2. When the ball box 4 releases the ping-pong ball into the inclined rail 5, the rotating wheel 672 is controlled to rotate. The ping-pong ball first enters the semicircular shell 671 and rolls into the ball loading groove 675. The ping-pong ball in the groove moves in a circle following the rotating wheel 672. After half a circle, it rolls into the inclined rail 5. As the rotating wheel 672 rotates, the ping-pong ball continuously and intermittently performs a landing test.

[0058] S3. During the rotation of the rotating wheel 672, the turbine 6762 performs suction in the rotating chamber 6761, and utilizes the airway 6764 and the suction hole 6765 to generate suction along the surface of the partition 674, so that the ping-pong ball in the ball-carrying slot 675 is pulled by the airflow to be centered. As the rotating wheel 672 continues to rotate, the special-shaped pin 6767 in synchronous circular motion contacts the ramp 6769 and is squeezed and moved to close the suction hole 6765, thereby releasing the constraint of the airflow on the ping-pong ball. Moreover, the special-shaped pins 6767 are closed one by one in the order from the axis of the rotating wheel 672 to the outside, so that the ping-pong ball in the ball-carrying slot 675 is gradually released from the inside to the outside.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A table tennis ball bounce test device, comprising a test box (1), characterized in that: One end of the test box (1) is set as an opening (2), and the end of the test box (1) opposite to the opening (2) is set as an upper support plate (3), a ball box (4) is fixedly arranged on the upper support plate (3), and an end of the ball box (4) close to the opening (2) is fixedly connected to an inclined rail (5), and a tester (6) matched with the inclined rail (5) is arranged on the test box (1); The tester (6) comprises a semicircular box (61) fixedly connected to the opening (2), and a ball-catching plate (62) of a conical structure is fixedly connected to the inner wall of the semicircular box (61), a groove (63) is formed on the inner top wall of the test box (1), and a flap (64) is rotatably connected in the groove (63), and a cam (65) matched with the flap (64) is rotatably connected in the groove (63); The inner bottom wall of the semicircular box (61) is provided with a drain groove (66); The ball box (4) and the ramp (5) are provided with a ball distribution assembly (67).

2. A table tennis ball bounce testing device according to claim 1, characterized in that: The ball distribution assembly (67) comprises a semicircular shell (671) arranged at the connection between the ball box (4) and the inclined rail (5), and the semicircular shell (671) is connected with the ball box (4) and the inclined rail (5), a rotating wheel (672) is rotatably connected in the semicircular shell (671), and an annular groove (673) is formed on the outer ring of the rotating wheel (672), and a plurality of partitions (674) are fixedly arranged in the annular groove (673), and the plurality of partitions (674) divide the annular groove (673) into a plurality of ball-carrying grooves (675); A negative pressure release component (676) is provided on the semicircular shell (671), the rotating wheel (672) and the partition (674).

3. A table tennis ball bounce testing device according to claim 2, characterized in that: The negative pressure release component (676) comprises a rotating cavity (6761) provided on the end surface of the rotating wheel (672), and a turbine (6762) is rotatably connected in the rotating cavity (6761), and a circular groove (6763) corresponding to the turbine (6762) and the rotating wheel (672) is provided on the inner side wall of the semicircular shell (671), and the turbine (6762) is fixedly connected along the circular groove (6763) via a bracket; An L-shaped air passage (6764) is provided inside the partition (674) and the rotating wheel (672), and the air passage (6764) is connected to the rotating chamber (6761). A plurality of suction holes (6765) connected to the air passage (6764) are provided on the surface of the partition (674), and the plurality of suction holes (6765) are distributed in a single row and at equal distances along the partition (674); The partition plate (674) and the rotating wheel (672) are provided with a special-shaped slide groove (6766) in communication with the suction hole (6765), and the special-shaped slide groove (6766) passes through the side surface of the rotating wheel (672) and corresponds to the circular groove (6763), and the interior of the special-shaped slide groove (6766) is slidably connected with a special-shaped plug (6767) for closing the suction hole (6765), and a spring (6768) is provided in the special-shaped slide groove (6766), and the spring (6768) pushes the special-shaped plug (6767) to move in a direction away from the suction hole (6765), and the end of the special-shaped plug (6767) penetrates the special-shaped slide groove (6766) and extends into the circular groove (6763); A plurality of inclined platforms (6769) matched with the special-shaped latch pins (6767) are fixedly arranged in the circular groove (6763), and the plurality of inclined platforms (6769) are distributed in a stepped manner along a circular track.

4. A table tennis ball bounce testing device according to claim 1, characterized in that: A cotton pad is fixedly arranged on the inner surface of the ball pocket enclosure plate (62).

5. A table tennis ball bounce testing device according to claim 1, characterized in that: The side surface of the semicircular box (61) is provided with a qualified outlet matched with the ball pocket enclosure (62).

6. A table tennis ball bounce testing device according to claim 2, characterized in that: The inner bottom wall of the ball box (4) is fixedly provided with a slope matching the ball loading groove (675).

7. A table tennis ball bounce testing device according to claim 3, characterized in that: The end of the special-shaped plug pin (6767) is fixedly provided with a rubber surface matching the suction hole (6765).

8. The method for using the table tennis ball bounce testing device according to claim 3 comprises the following steps: S1, placing a table tennis ball to be tested into a ball box (4), and the table tennis ball inside the ball box rolls out along the inclined track (5) into the test box (1). During this process, the table tennis ball moves along the inclined track (5) due to rolling. After landing, the table tennis ball is affected by the rolling potential energy and moves horizontally when it bounces up, that is, it bounces forward. The height of the table tennis ball with qualified elasticity exceeds the ball pocket enclosure (62) and falls into the inner side of the ball pocket enclosure (62), while the unqualified table tennis ball falls into the semicircular box (61) and is discharged through the leakage groove (66); S2, when the ball box (4) releases the table tennis ball into the inclined rail (5), the rotating wheel (672) is controlled to rotate, and the table tennis ball first enters the semicircular shell (671) and rolls into the ball loading groove (675). The table tennis ball in the groove follows the rotating wheel (672) to perform a circular motion, and after half a circle, it rolls into the inclined rail (5). As the rotating wheel (672) rotates, the table tennis ball continuously and intermittently performs a landing test; S3. During the rotation of the rotating wheel (672), the turbine (6762) performs suction in the rotating chamber (6761), and uses the airway (6764) and the suction hole (6765) to generate suction along the surface of the partition (674), so that the table tennis ball in the ball-carrying slot (675) is pulled by the airflow to be centrally positioned. As the rotating wheel (672) continues to rotate, the special-shaped latch (6767) in synchronous circular motion contacts the ramp (6769) and is squeezed and moved to close the suction hole (6765), thereby releasing the constraint of the airflow on the table tennis ball. Moreover, the special-shaped latches (6767) are closed one by one in the order from the axis of the rotating wheel (672) to the outside, so that the table tennis ball in the ball-carrying slot (675) is gradually released from the inside to the outside.

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