Football rebound rate measuring device

Abstract

The invention relates to the technical field of football rebound rate measurement, in particular to a football rebound rate measuring device which comprises a supporting leg and a football body and further comprises a placing pipe, a connecting rod, a connecting rod and a connecting rod. A detection cavity is formed in the mounting block; the bearing mechanism is arranged at the lower part in the shell; the rotating grooves are arranged in an arc shape, and the front side wall and the rear side wall of the shell are both provided with openings; an impact mechanism is mounted on the rotating frame; reset blocks are fixedly mounted at the output ends of the two sets of reset electric push rods, the surfaces of the sides, close to the football body, of the reset blocks make contact with the football body, and adhesion parts are arranged in the reset blocks. According to the method and the device, the surface of the football sample can be subjected to multi-point, multi-intensity and multi-frequency repeated impact, so that the rebound rate of the football can be quickly, fully and accurately measured.

Description

Technical Field

[0001] The invention relates to the technical field of football rebound rate measurement, in particular to a football rebound rate measurement device. Background Art

[0002] The rebound rate of a football refers to the speed and angle at which a football bounces or rebounds after being acted upon by an external force. It is an important indicator for detecting whether a football field is qualified. At the same time, the rebound rate of a football can be applied to football training. Footballs with different rebound rates can achieve different effects of football skill training.

[0003] The traditional measurement of football rebound rate (such as the application document with publication number CN109459378A) uses the percentage value of the height of the football rebounding after falling vertically to the surface of the field to the initial falling height as the football rebound rate. The data is relatively idealized, and because the forces applied to the football by players during the game are diverse, the rebound rate measured by free fall cannot provide sufficiently effective data for football training.

[0004] In order to solve this problem, the application document with publication number CN108051324A discloses a device for measuring the rebound rate of a football on a football field. Although the device can measure the rebound rate of a football when the football is incident on the surface of the field at different incident angles and different speeds, the following problems still exist, namely, it is difficult to fully and accurately detect the entire rebound process of the football. At the same time, the measurement efficiency is poor, it is difficult to detect the football in a short time, and it is difficult to achieve multi-intensity and multi-frequency rebound rate detection of each point on the surface of the football. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems existing in the prior art and to propose a soccer ball rebound rate measuring device.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: a soccer ball rebound rate measuring device, comprising a support leg and a soccer ball body, wherein the top of the support leg is fixedly connected to a shell, a cavity is provided inside the shell, and further comprising: A placement tube, wherein the placement tube is fixedly mounted on the top of the shell, and the lower end of the placement tube is communicated with the inside of the shell; A mounting block, wherein the mounting block is fixedly mounted inside the cavity, a detection cavity is provided inside the mounting block, and an angle adjustment slot is provided at a middle position of the mounting block; A supporting mechanism, which is disposed at the lower part of the shell and is used to support the football body; A rotation groove, which is arranged in an arc shape and is provided on the front side wall and the rear side wall of the housing; Angle motors, wherein two groups of angle motors are provided and fixedly installed inside the front and rear side walls of the housing respectively. The output ends of the two groups of angle motors are keyed to a connecting frame. The end of the connecting frame away from the angle motor is fixedly connected to a rotating frame after sliding through the rotating groove. The rotating frame is equipped with an impact mechanism. The clamping mechanism comprises two groups of reset electric push rods fixedly mounted on the inner walls of the front and rear sides of the mounting block, and the output ends of the two groups of reset electric push rods are fixedly mounted with reset blocks, and the reset blocks are arranged on a side surface close to the football body in contact with the football body, and an adhesive portion is arranged inside the reset blocks; The ball drop port is opened at the lower end of the shell and is connected to the inside of the detection cavity.

[0007] Preferably, the supporting mechanism includes a closed motor fixedly mounted on one side of the lower interior of the shell, the output end of the closed motor is keyed to a screw rod, the outer side of the screw rod is threadedly connected to a bottom block, and a sliding groove is provided at the lower interior of the shell for the bottom block to slide.

[0008] Preferably, a clearance groove is opened inside the bottom block, a lifting electric push rod is fixedly installed inside the clearance groove, a chassis is rotatably installed on the output end of the lifting electric push rod, the outer wall of the chassis is in rotational contact with the inner wall of the bottom block, a gear motor fixedly installed inside the clearance groove is provided on one side of the lifting electric push rod, a driving gear is keyed to the output end of the gear motor, and a driven gear meshing with the driving gear is fixedly installed on the inner wall of the chassis.

[0009] Preferably, the impact mechanism includes a winding motor fixedly mounted below one end of the rotating frame away from the detection chamber, a winding disk fixedly mounted inside the rotating frame is provided on one side of the winding motor, transmission is carried out between the winding motor and the winding disk through a transmission belt, a connecting rope is wound on the outer side of the winding disk, and a guide wheel rotatably mounted inside the rotating frame is provided above the winding motor.

[0010] Preferably, an impact block is slidably connected to the upper surface of the rotating frame, and a ball is movably installed at the lower end of the impact block to rotate in contact with the upper surface of the rotating frame. The end of the connecting rope away from the winding disk is fixedly connected to the end of the impact block after being wound around the guide wheel.

[0011] Preferably, a counterweight block is installed inside the end of the impact block, and the counterweight block is used to increase the mass of the impact block.

[0012] Preferably, a distance measuring sensor is fixedly mounted on a side of the upper surface of the rotating frame away from the football body.

[0013] Preferably, a visual sensor is fixedly mounted on the inner wall of the mounting block, and the working end of the visual sensor faces the football body.

[0014] Preferably, the adhesion portion comprises an adjustment motor fixedly mounted inside and below the reset block, the output end of the adjustment motor is key-connected with an adjustment roller, and one side of the adjustment roller is arranged in contact with the surface of the football body.

[0015] Preferably, a liquid cavity is opened above the reset block, and EVA glue is stored in the liquid cavity. A small notch is opened inside the reset block, and the upper end of the small notch is connected to the liquid cavity, and the lower end of the small notch contacts the surface of the adjustment roller.

[0016] Compared with the prior art, the advantages of the present invention are: 1. In the present application, by setting up the supporting mechanism, when the lifting electric push rod is running, the chassis can be driven to move up and down, and at the same time, starting the gear motor can make the driving gear rotate. When the driving gear rotates, it can drive the chassis to rotate through the driven gear meshing with it, thereby realizing the free adjustment of the height and angle of the football body placed on the surface of the chassis, which is convenient for the subsequent all-round detection of the football body.

[0017] 2. In the present application, by setting up the impact mechanism, on the one hand, when the angle motor is running, it can drive the connecting frame to rotate inside the rotating groove, so that the rotating frame can be further rotated inside the angle adjustment groove, thereby facilitating the adjustment of the angle of the rotating frame, and facilitating the subsequent vertical impact on different points of the football body. On the other hand, the impact block and the counterweight block can be used to simulate the impact force of different sizes on the football body, so as to fully test the rebound rate of the football body.

[0018] 3. In the present application, by setting up the clamping mechanism, on the one hand, when the reset electric push rod is running, the reset block can be driven to move so that the reset block contacts the surface of the football body to initially clamp the football body; on the other hand, when the EVA glue stored in the liquid chamber flows into the surface of the adjustment roller through the small notch, the adhesion between the adjustment roller and the surface of the football body can be enhanced, thereby ensuring the stability of the football body when it is hit.

[0019] 4. In the present application, by setting up ranging sensors and visual sensors, the ranging sensors will monitor the distance between the impact block and the ranging sensors on the rotating frame in real time, analyze the position of the impact block before impact and the rebound position after impact, obtain the height difference, and use the height difference to calculate the energy loss. The data is analyzed by the internal processor to obtain the rebound rate. The visual sensor can analyze the placement status of the internal football body and send the generated electrical signal to the control device, which controls the operation of the angle motor to rotate the rotating frame.

[0020] In summary, in the present application, the rebound rate of a football can be measured quickly, fully and accurately by repeatedly impacting the surface of the football sample at multiple points, multiple intensities and multiple frequencies. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a soccer ball rebound rate measuring device proposed by the present invention; Figure 2 This is a schematic diagram of the overall structure of a soccer ball rebound rate measuring device proposed by the present invention from another perspective; Figure 3 This is a schematic diagram of the internal cross-sectional structure of a soccer ball rebound rate measuring device proposed by the present invention; Figure 4 This is a schematic diagram of the internal cross-sectional structure of a soccer ball rebound rate measuring device proposed by the present invention from another perspective; Figure 5 A schematic diagram of the internal structure of a soccer ball rebound rate measuring device proposed by the present invention; Figure 6 This is a schematic structural diagram of a rotating frame and a connecting frame of a soccer ball rebound rate measuring device proposed by the present invention; Figure 7 This is a schematic structural diagram of a bottom block portion of a soccer ball rebound rate measuring device proposed by the present invention; Figure 8 A schematic diagram of the internal structure of a bottom block and a chassis of a soccer ball rebound rate measuring device proposed by the present invention; Fig. 9 A schematic diagram of the internal structure of a rotating frame of a soccer ball rebound rate measuring device proposed by the present invention; Fig.10 The present invention provides a schematic diagram of the internal structure of a reset block of a soccer ball rebound rate measuring device.

[0022] In the figure: 1 shell, 101 rotating groove, 102 placing tube, 103 ball drop port, 104 detection chamber, 105 mounting block, 2 connecting frame, 201 angle motor, 3 football body, 4 rotating frame, 401 distance sensor, 402 guide wheel, 403 winding motor, 404 winding disk, 5 impact block, 501 counterweight block, 502 connecting rope, 6 reset block, 601 reset electric push rod, 602 liquid chamber, 603 adjustment motor, 604 adjustment roller, 605 small notch, 7 bottom block, 701 give way slot, 8 closed motor, 801 screw rod, 9 chassis, 901 driven gear, 10 gear motor, 11 driving gear, 12 lifting electric push rod, 13 visual sensor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1 to Figure 2 A soccer ball rebound rate measuring device comprises a supporting leg, a shell 1 is welded and fixed to the top of the supporting leg, a placement tube 102 is welded and fixed to the top of the shell 1, the lower end of the placement tube 102 is connected to the inside of the shell 1, a ball drop opening 103 is opened at the lower end of the shell 1, the ball drop opening 103 is located directly below the placement tube 102, and arc-shaped rotation grooves 101 are opened on the front side wall and the rear side wall of the shell 1.

[0025] Reference Figures 3 to 9 A closed motor 8 is fixedly installed on one side of the lower part of the housing 1. The output end of the closed motor 8 is keyed to a screw rod 801. The outer side of the screw rod 801 is threadedly connected to the bottom block 7. A sliding groove for the bottom block 7 to slide is provided at the lower part of the housing 1. When the closed motor 8 is running, the bottom block 7 can be driven by the screw rod 801 to move back and forth in the sliding groove. A clearance groove 701 is provided inside the bottom block 7. A lifting electric push rod 12 is fixedly installed inside the clearance groove 701. A chassis 9 is rotatably installed on the output end of the lifting electric push rod 12. The outer side wall of the chassis 9 is in rotational contact with the inner wall of the bottom block 7. A gear motor 10 fixedly installed inside the clearance groove 701 is provided on one side of the lifting electric push rod 12. The output end of the gear motor 10 is keyed to a driving gear 11. A driven gear 901 meshingly connected to the driving gear 11 is fixedly installed on the inner wall of the chassis 9.

[0026] When the lifting electric push rod 12 is running, it can drive the chassis 9 to move up and down. At the same time, starting the gear motor 10 can make the driving gear 11 rotate. When the driving gear 11 rotates, it can drive the chassis 9 to rotate through the driven gear 901 meshing with it, thereby realizing the free adjustment of the height and angle of the football body 3 placed on the surface of the chassis 9.

[0027] A cavity is provided inside the shell 1, and a fan-shaped mounting block 105 is fixedly installed inside the cavity. A detection cavity 104 is provided inside the mounting block 105, and the detection cavity 104 is connected to the lower end of the placement tube 102 and the ball dropping port 103. An angle motor 201 is fixedly installed inside the front and rear side walls of the shell 1, and the output end of the angle motor 201 is keyed to a connecting frame 2. The end of the connecting frame 2 away from the angle motor 201 is welded and fixed with a rotating frame 4 after sliding through the rotating groove 101. An angle adjustment groove for rotating the rotating frame 4 is provided in the middle position.

[0028] When the angle motor 201 is running, it can drive the connecting frame 2 to rotate inside the rotating groove 101, so that the rotating frame 4 can be further rotated inside the angle adjustment groove, thereby facilitating the adjustment of the angle of the rotating frame 4 and facilitating the subsequent impact on different points of the football body 3.

[0029] A winding motor 403 is fixedly installed at the lower part of the end of the rotating frame 4 away from the detection chamber 104, and a winding disk 404 is fixedly installed on one side of the winding motor 403. The winding motor 403 and the winding disk 404 are driven by a transmission belt. A connecting rope 502 is wound on the outer side of the winding disk 404. A guide wheel 402 rotatably installed inside the rotating frame 4 is arranged above the winding motor 403, and an impact block 5 is slidably connected to the upper surface of the rotating frame 4. A ball bearing that is in rotational contact with the upper surface of the rotating frame 4 is movably installed at the lower end of the impact block 5. The ball bearing can move the impact block 5 and the upper surface of the rotating frame 4. The sliding friction between the surfaces is converted into rolling friction, so that the impact block 5 can slide more smoothly on the upper surface of the rotating frame 4. A distance sensor 401 is fixedly installed on the side of the upper surface of the rotating frame 4 away from the football body 3, and a visual sensor 13 is fixedly installed on the inner wall of the mounting block 105. The distance sensor 401 and the visual sensor 13 are both existing technologies, and their specific structural designs are not repeated here. The visual sensor 13 is used to detect the state of the football body 3, and the distance sensor 401 is used to record in real time the position difference of the impact block 5 before and after it is placed on the rotating frame 4.

[0030] A counterweight 501 is installed inside the end of the impact block 5. The counterweight 501 is used to increase the mass of the impact block 5, so that different impact forces can be achieved on the football body 3, which is convenient for subsequent detection. The end of the connecting rope 502 away from the winding disk 404 is fixedly connected to the end of the impact block 5 after being wound around the guide wheel 402. When the winding motor 403 is running, the connecting rope 502 can be wound and released, so that the impact block 5 can slide up and down on the surface of the rotating frame 4, which is convenient for repeated impact on the surface of the football body 3.

[0031] Reference Figures 4 to 5 as well as Fig.10, reset electric push rods 601 are fixedly installed on the inner walls on both sides of the front and rear of the mounting block 105, and a reset block 6 is fixedly installed on the output end of the reset electric push rod 601. The reset block 6 is close to the side surface of the football body 3 and is in contact with the football body 3. An adjustment motor 603 is fixedly installed at the bottom of the reset block 6, and the output end of the adjustment motor 603 is keyed to an adjustment roller 604, and one side of the adjustment roller 604 is in contact with the surface of the football body 3. A liquid cavity 602 is opened at the top of the reset block 6, and EVA glue is stored in the liquid cavity 602. A small notch 605 is opened in the reset block 6, and the upper end of the small notch 605 is connected to the inside of the liquid cavity 602, and the lower end of the small notch 605 is in contact with the surface of the adjustment roller 604, so that the EVA glue stored in the liquid cavity 602 can flow into the surface of the adjustment roller 604 through the small notch 605, so that the adhesion between the adjustment roller 604 and the surface of the football body 3 can be enhanced, and at the same time, the EVA glue will not remain on the surface of the football body 3.

[0032] The specific working principle of the present invention is as follows: in the initial state, the closed motor 8 rotates, the screw rod 801 rotates to drive the bottom block 7 to reach the bottom position of the placement tube 102, the reset electric push rod 601 shrinks, the reset block 6 will not block the football body 3 from being placed inside the device, the reset electric push rod 601 and the lifting electric push rod 12 are started, the chassis 9 rises and finally reaches a position on the same horizontal plane as the bottom surface of the inner side of the shell 1, the two reset blocks 6 are close to the football body 3, the adjustment roller 604 contacts the football body 3, the position of the football body 3 is initially fixed, and it is convenient for subsequent collision testing. The position control angle motor 201 rotates to keep the movement direction of the impact block 5 always passing through the center of the football body 3, that is, when the impact block 5 collides with the football body 3, the impact direction is perpendicular to the spherical surface, and no slipping occurs. The winding motor 403 rotates, and the output shaft of the winding motor 403 is connected to the winding reel 404 through a transmission belt. The winding reel 404 initially completely reels the connecting rope 502, and the impact block 5 contacts the ranging sensor 401.

[0033] The angle motor 201 is controlled to rotate. The rotation of the angle motor 201 can make the connecting frame 2 rotate inside the rotating groove 101. The impact block 5 can impact the surface of the football body 3 from different angles. The front and rear rotating frames 4 are respectively controlled by separate angle motors 201. The rotation directions of the front and rear rotating frames 4 are different. The mass of the impact block 5 is less than the mass of the football. When impacting the surface of the football body 3, the impact block 5 rebounds and the impact position of the football body 3 will be deformed. By replacing different counterweight blocks 501 to change the mass, the magnitude of the impact force is controlled. When the impact block 5 impacts the football body 3, the surface of the football body 3 is deformed. Affected by factors such as the material and structure of the football, the height of the impact block 5 when it rebounds will be less than the initial height when it is lowered. The magnitude of the rebound force of the football body 3 after being impacted can be obtained through the inclination angle of the rotating frame 4 and the placement position and rebound position difference of the impact block 5 inside the rotating frame 4. Combined with the mass of the football, the rebound rate of the football can be analyzed. Before using the device to measure the rebound rate, multiple standard football tests can be used to obtain experimental samples of standard footballs.

[0034] The contact portion between the rotating frame 4 and the impact block 5 is designed to fit the arc surface of the impact block 5, and the contact portion between the rotating frame 4 and the impact block 5 is installed with balls. Since the rolling friction is much smaller than the sliding friction, the energy loss caused by the sliding friction is greatly reduced. Even when the angle between the rotating frame 4 and the ground is small, the impact block 5 can still slide down smoothly and hit the football body 3. The impact force when the impact block 5 collides with the football body 3 is not only affected by the counterweight block 501, but also by the placement position. The winding motor 403 is used to release the connecting rope 502 of appropriate length to adjust the initial placement position of the impact block 5. When placing, the winding motor 403 will control the winding disk 404 to quickly release the connecting rope 502, and the releasing speed of the connecting rope 502 will be greater than the impact The speed at which the impact block 5 slides down, so the connecting rope 502 will not affect the sliding and rebounding of the impact block 5. The impact block 5 rebounds to the maximum height. The ranging sensor 401 will monitor the distance between the impact block 5 and the ranging sensor 401 on the rotating frame 3 in real time, analyze the position of the impact block 5 before the impact and the rebound position after the impact, get the height difference, use the height difference to calculate the energy loss, and get the rebound rate after the data is analyzed by the internal processor. After the measurement is completed, the winding drum 404 rewinds the connecting rope 502, and the impact block 5 will reach the original height again, which is convenient for multiple measurements at the same position. The entire operation steps are all inside the device, and there is no need to pick up the ball again, nor is there any need to find the same position to accurately test the rebound rate at a specific position of the football body 3.

[0035] The visual sensor 13 can analyze the placement state of the internal football body 3 and send the generated electrical signal to the control device, which controls the angle motor 201 to operate so that the rotating frame 4 rotates. However, the impact block 5 will be perpendicular to the surface of the football body 3 only when the movement direction passes through the football body 3 vertically. The impact block 5 is not easy to slip when it hits the football body 3, and the measurement result will be accurate. When the football body 3 is fixed, the impact block 5 can only measure a small part of the upper half of the football body 3. After adjusting the position, the rebound rate of different positions of the football body 3 can be measured more comprehensively. The two liquid chambers 602 are filled with EVA glue. The EVA glue has high viscosity, but it is difficult to adhere to the outer skin of the football body 3. It can be glued along the small groove 6 05 flows and covers the surface of the adjustment roller 604. The adjustment motor 603 controls the adjustment roller 604 to rotate. The adjustment roller 604 stained with EVA glue will drive the football body 3 to rotate. The rotation directions of the two adjustment rollers 604 are perpendicular, which can control the rotation of the football body 3 with more selectivity. It should be noted that each time, only one side of the adjustment roller 604 can be adjusted separately to avoid jamming when rotating at the same time. The surface of the adjustment roller 604 is smooth, and the wear on its surface when fixing the football body 3 is small. In order to minimize friction loss, the adjustment roller 604 does not increase the extrusion strength to achieve the effect of driving the football to rotate, but uses the EVA glue to play a similar method of increasing the "friction coefficient". The adjustment roller 604 rotates to drive the football body 3 to rotate.

[0036] The gear motor 10 rotates, driving the chassis 9 to rotate, and the football body 3 can rotate. The rotation adjustment in three directions can increase the adjustment methods, and the adjustment speed is faster when used together, and the complete measurement process is faster. After the measurement is completed, the lifting electric push rod 12 shrinks, the chassis 9 is put into the make way groove 701, the closed motor 8 controls the screw rod 801 to rotate, the bottom block 7 is received in the device, the ball drop port 103 is opened, and the football body 3 can be simply dropped.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A soccer ball rebound rate measuring device, comprising a support leg and a soccer ball body (3), wherein the top of the support leg is fixedly connected to a housing (1), and a cavity is provided inside the housing (1), wherein: Also included are: A placement tube (102), the placement tube (102) being fixedly mounted on the top end of the housing (1), and the lower end of the placement tube (102) being in communication with the interior of the housing (1); A mounting block (105), the mounting block (105) being fixedly mounted inside the cavity, a detection cavity (104) being provided inside the mounting block (105), and an angle adjustment slot being provided at a middle position of the mounting block (105); A supporting mechanism, the supporting mechanism being arranged at the lower part of the housing (1) and used for supporting the football body (3); A rotation groove (101), the rotation groove (101) is arranged in an arc shape and is provided on the front side wall and the rear side wall of the housing (1); Angle motors (201), wherein two groups of the angle motors (201) are provided and are respectively fixedly mounted inside the front and rear side walls of the housing (1); the output ends of the two groups of angle motors (201) are keyed to a connecting frame (2); one end of the connecting frame (2) away from the angle motor (201) is fixedly connected to a rotating frame (4) after sliding through the rotating groove (101); and an impact mechanism is mounted on the rotating frame (4); A clamping mechanism, the clamping mechanism comprising two groups of reset electric push rods (601) fixedly mounted on the inner walls of the front and rear sides of the mounting block (105), the output ends of the two groups of reset electric push rods (601) are both fixedly mounted with reset blocks (6), the reset blocks (6) are arranged on a side surface close to the football body (3) in contact with the football body (3), and the reset blocks (6) are provided with an adhesive portion inside; A ball drop opening (103) is provided at the lower end of the housing (1) and is communicated with the interior of the detection cavity (104).

2. A soccer ball rebound rate measuring device according to claim 1, characterized in that: The supporting mechanism comprises a closed motor (8) fixedly mounted on one side of the lower interior of the housing (1); the output end of the closed motor (8) is keyed to a screw rod (801); the outer side of the screw rod (801) is threadedly connected to a bottom block (7); and a sliding groove for the bottom block (7) to slide is provided at the lower interior of the housing (1).

3. A soccer ball rebound rate measuring device according to claim 2, characterized in that: A clearance groove (701) is provided inside the bottom block (7), a lifting electric push rod (12) is fixedly installed inside the clearance groove (701), a chassis (9) is rotatably installed on the output end of the lifting electric push rod (12), the outer wall of the chassis (9) is in rotational contact with the inner wall of the bottom block (7), a gear motor (10) fixedly installed inside the clearance groove (701) is provided on one side of the lifting electric push rod (12), the output end of the gear motor (10) is key-connected with a driving gear (11), and a driven gear (901) meshingly connected with the driving gear (11) is fixedly installed on the inner wall of the chassis (9).

4. A soccer ball rebound rate measuring device according to claim 1, characterized in that: The impact mechanism comprises a winding motor (403) fixedly mounted below one end of the rotating frame (4) away from the detection chamber (104); a winding disk (404) fixedly mounted inside the rotating frame (4) is provided on one side of the winding motor (403); a transmission belt is used to transmit power between the winding motor (403) and the winding disk (404); a connecting rope (502) is wound on the outer side of the winding disk (404); and a guide wheel (402) rotatably mounted inside the rotating frame (4) is provided above the winding motor (403).

5. A soccer ball rebound rate measuring device according to claim 4, characterized in that: The upper surface of the rotating frame (4) is slidably connected to an impact block (5), and a ball bearing that is in rotational contact with the upper surface of the rotating frame (4) is movably mounted on the lower end of the impact block (5); and the end of the connecting rope (502) away from the winding drum (404) is fixedly connected to the end of the impact block (5) after being wound around the guide wheel (402).

6. A soccer ball rebound rate measuring device according to claim 5, characterized in that: A counterweight block (501) is installed inside the end of the impact block (5), and the counterweight block (501) is used to increase the mass of the impact block (5).

7. A soccer ball rebound rate measuring device according to claim 1, characterized in that: A distance measuring sensor (401) is fixedly mounted on a side of the upper surface of the rotating frame (4) away from the football body (3).

8. A soccer ball rebound rate measuring device according to claim 1, characterized in that: A visual sensor (13) is fixedly mounted on the inner wall of the mounting block (105), with the working end of the visual sensor (13) facing the football body (3).

9. A soccer ball rebound rate measuring device according to claim 1, characterized in that: The adhesion portion comprises an adjustment motor (603) fixedly mounted inside and below the reset block (6); an output end of the adjustment motor (603) is key-connected to an adjustment roller (604); and one side of the adjustment roller (604) is arranged in contact with the surface of the football body (3).

10. A soccer ball rebound rate measuring device according to claim 9, characterized in that: A liquid cavity (602) is provided at the top of the reset block (6), and EVA glue is stored in the liquid cavity (602). A small notch (605) is provided in the reset block (6), and the upper end of the small notch (605) is communicated with the inside of the liquid cavity (602), and the lower end of the small notch (605) is in contact with the surface of the adjustment roller (604).

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