A football bounce rate measuring device

Abstract

The present invention relates to the technical field of football bounce rate measurement, and particularly relates to a football bounce rate measurement device, which includes support legs and a football body, and further includes: a placement tube, the lower end of the placement tube is communicated with the inside of the housing; a mounting block, a detection cavity is formed inside the mounting block; a supporting mechanism, the supporting mechanism is arranged below the inside of the housing; a rotating groove, the rotating groove is arc-shaped and is opened on both the front side wall and the rear side wall of the housing; a rotating frame, an impact mechanism is installed on the rotating frame; a clamping mechanism, output ends of two reset electric push rods are fixedly installed with reset blocks, one side surface of the reset block close to the football body is in contact with the football body, and an adhesion part is arranged inside the reset block. In this application, multiple-point, multi-intensity and multi-frequency repeated impacts can be carried out on the surface of the football sample, so as to realize rapid, sufficient and accurate measurement of the bounce rate of the football.

Description

Technical Field

[0001] The present invention relates to the technical field of football bounce rate measurement, and particularly to a football bounce rate measurement device. Background Art

[0002] The football bounce rate refers to the speed and angle at which a football bounces or rebounds after being subjected to an external force. It is an important indicator for detecting the qualification of a football field. At the same time, the football bounce rate can be applied to football training, and football skill training with different effects can be achieved through footballs with different bounce rates.

[0003] For the measurement of the traditional football bounce rate (such as the application document with the publication number CN109459378A), the percentage value of the height of the football bouncing after vertically freely falling onto the field surface and the starting falling height is used as the football bounce rate. The data is relatively idealized. And because the force exerted by the player on the football during the game is diverse, the bounce rate measured by free fall cannot provide sufficient and effective data for football training.

[0004] To solve this problem, the application document with the publication number CN108051324A discloses a football bounce rate measurement device for a football field. Although this device can measure the football bounce rate when the football hits the field surface at different incident angles and different speeds, there are still the following problems, that is, it is difficult to fully and accurately detect the entire bounce 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 realize the bounce rate detection of multiple intensities and multiple frequencies for each point on the football surface. 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 football bounce rate measurement device.

[0006] To achieve the above purpose, the present invention adopts the following technical scheme: A football bounce rate measurement device, including support legs and a football body. The top end of the support legs is fixedly connected with a housing. A cavity is opened inside the housing, and further includes:

[0007] A placement tube, which is fixedly installed at the top end of the housing, and the lower end of the placement tube is communicated with the inside of the housing;

[0008] A mounting block, which is fixedly installed inside the cavity, and a detection cavity is opened inside the mounting block. An angle adjustment groove is opened at the middle position of the mounting block;

[0009] A supporting mechanism, which is arranged below the inside of the housing and is used for supporting the football body;

[0010] 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;

[0011] 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.

[0012] 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;

[0013] The ball drop port is opened at the lower end of the shell and is connected to the inside of the detection cavity.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] Preferably, a distance measuring sensor is fixedly mounted on a side of the upper surface of the rotating frame away from the football body.

[0020] Preferably, a vision sensor is fixedly installed on the inner wall of the mounting block, and the working end of the vision sensor faces the football body.

[0021] Preferably, the adhesion part includes an adjustment motor fixedly installed below the inside of 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 in contact with the surface of the football body.

[0022] Preferably, a liquid cavity is formed above the inside of the reset block, and EVA glue is stored inside the liquid cavity. A small notch is formed inside the reset block. The upper end of the small notch communicates with the inside of the liquid cavity, and the lower end of the small notch is in contact with the surface of the adjustment roller.

[0023] Compared with the prior art, the advantages of the present invention are as follows:

[0024] 1. In this application, through the setting of the supporting mechanism, when the lifting electric push rod operates, it can drive the chassis to move up and down. 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 meshed with it. Thus, the height and angle of the football body placed on the surface of the chassis can be freely adjusted, which is convenient for subsequent comprehensive detection of the football body.

[0025] 2. In this application, through the setting of the impact mechanism, on the one hand, when the angle motor operates, it can drive the connecting frame to rotate inside the rotation groove, so as to further make the rotating frame rotate inside the angle adjustment groove, which is convenient for adjusting the angle of the rotating frame and facilitating subsequent vertical impact on different points of the football body. On the other hand, different impact forces on the football body can be simulated by using the impact block and the counterweight block, so as to fully detect the rebound rate of the football body.

[0026] 3. In this application, through the setting of the clamping mechanism, on the one hand, when the reset electric push rod operates, it can drive the reset block 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 inside the liquid cavity flows onto 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, ensuring the stability of the football body when it is impacted.

[0027] 4. In this application, through the settings of a ranging sensor, a vision sensor, etc., the ranging sensor will continuously monitor the distance between the impact block and the ranging sensor on the rotating frame, analyze the position of the impact block before impact and the position after rebound, obtain the height difference, calculate the magnitude of energy loss using the height difference, and obtain the magnitude of the rebound rate after the data is analyzed by the internal processor. The vision sensor can analyze the placement state of the internal football body and send the generated electrical signal to the control device, and the control device controls the operation of the angle motor to make the rotating frame rotate.

[0028] In summary, in this application, by repeatedly impacting the surface of the football sample at multiple points, with multiple intensities, and multiple frequencies, it is possible to quickly, fully, and accurately measure the rebound rate of the football. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of a football rebound rate measuring device proposed by the present invention;

[0030] Figure 2 is a schematic diagram of the overall structure of another perspective of a football rebound rate measuring device proposed by the present invention;

[0031] Figure 3 is a schematic diagram of the internal sectional structure of a football rebound rate measuring device proposed by the present invention;

[0032] Figure 4 is a schematic diagram of the internal sectional structure of another perspective of a football rebound rate measuring device proposed by the present invention;

[0033] Figure 5 is a schematic diagram of the internal structure of a football rebound rate measuring device proposed by the present invention;

[0034] Figure 6 is a schematic diagram of the structure of the rotating frame and the connecting frame of a football rebound rate measuring device proposed by the present invention;

[0035] Figure 7 is a schematic diagram of the structure of the bottom block of a football rebound rate measuring device proposed by the present invention;

[0036] Figure 8 is a schematic diagram of the internal structure of the bottom block and the chassis of a football rebound rate measuring device proposed by the present invention;

[0037] Figure 9 is a schematic diagram of the internal structure of the rotating frame of a football rebound rate measuring device proposed by the present invention;

[0038] Figure 10 is a schematic diagram of the internal structure of the reset block of a football rebound rate measuring device proposed by the present invention.

[0039] In the figure: 1 housing, 101 rotating groove, 102 placing tube, 103 ball dropping port, 104 detection cavity, 105 mounting block, 2 connecting frame, 201 angle motor, 3 football body, 4 rotating frame, 401 distance measuring sensor, 402 guide wheel, 403 winding motor, 404 winding disc, 5 impact block, 501 counterweight, 502 connecting rope, 6 reset block, 601 reset electric push rod, 602 liquid cavity, 603 adjustment motor, 604 adjustment roller, 605 small notch, 7 bottom block, 701 relief groove, 8 closing motor, 801 lead screw, 9 chassis, 901 driven gear, 10 gear motor, 11 driving gear, 12 lifting electric push rod, 13 vision sensor. Detailed implementation manner

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0041] Refer to Figures 1 to 2 , a football rebound rate measuring device, including support legs, the top of the support legs is welded and fixed with a housing 1, the top of the housing 1 is welded and fixed with a placing tube 102, the lower end of the placing tube 102 communicates with the inside of the housing 1, a ball dropping port 103 is opened at the lower end of the housing 1, the ball dropping port 103 is located directly below the placing tube 102, and arc-shaped rotating grooves 101 are opened on both the front side wall and the rear side wall of the housing 1.

[0042] Refer to Figures 3 to 9 , a closing motor 8 is fixedly installed on one side below the inside of the housing 1, a lead screw 801 is key-connected to the output end of the closing motor 8, a bottom block 7 is threadedly connected to the outside of the lead screw 801, a sliding groove for the bottom block 7 to slide is opened below the inside of the housing 1, and when the closing motor 8 operates, the bottom block 7 can be driven to move left and right reciprocally inside the sliding groove through the lead screw 801. A relief groove 701 is opened inside the bottom block 7, a lifting electric push rod 12 is fixedly installed inside the relief groove 701, the output end of the lifting electric push rod 12 is rotatably installed with a chassis 9, the outer side wall of the chassis 9 is in rotational contact with the inner wall of the bottom block 7, and a gear motor 10 fixedly installed inside the relief groove 701 is arranged on one side of the lifting electric push rod 12, a driving gear 11 is key-connected to the output end of the gear motor 10, and a driven gear 901 meshingly connected with the driving gear 11 is fixedly installed on the inner wall of the chassis 9.

[0043] When the lifting electric push rod 12 operates, the chassis 9 can be driven to move up and down. At the same time, when the gear motor 10 is started, the driving gear 11 can be rotated, and when the driving gear 11 rotates, the chassis 9 can be driven to rotate through the driven gear 901 meshingly connected with it. Thus, the height and angle of the football body 3 placed on the surface of the chassis 9 can be freely adjusted.

[0044] A cavity is formed inside the housing 1, and a sector-shaped mounting block 105 is fixedly installed inside the cavity. A detection cavity 104 is formed inside the mounting block 105. The detection cavity 104 is communicated with the lower end of the placement tube 102 and the ball dropping port 103. Angle motors 201 are fixedly installed inside the front and rear side walls of the housing 1. A connecting frame 2 is key-connected to the output end of the angle motor 201. One end of the connecting frame 2 away from the angle motor 201 is welded and fixed to a rotating frame 4 after sliding through the rotating slot 101. An angle adjustment slot for the rotating frame 4 to rotate is formed at the middle position of the mounting block 105.

[0045] When the angle motor 201 operates, it can drive the connecting frame 2 to rotate inside the rotating slot 101, so as to further make the rotating frame 4 rotate inside the angle adjustment slot, and then facilitate the adjustment of the angle of the rotating frame 4, which is convenient for subsequent impact on different points of the football body 3.

[0046] A winding motor 403 is fixedly installed below one end of the rotating frame 4 away from the detection cavity 104. A winding disc 404 is fixedly installed on one side of the winding motor 403. The winding motor 403 and the winding disc 404 are driven by a transmission belt. A connecting rope 502 is wound on the outer side of the winding disc 404. A guide wheel 402 rotatably installed inside the rotating frame 4 is arranged above the winding motor 403. An impact block 5 is slidably connected to the upper surface of the rotating frame 4. A ball is movably installed at the lower end of the impact block 5 and is in rotational contact with the upper surface of the rotating frame 4. The ball can convert the sliding friction between the impact block 5 and the upper surface of the rotating frame 4 into rolling friction, so that the impact block 5 can slide more smoothly on the upper surface of the rotating frame 4. A distance measuring sensor 401 is fixedly installed on one side of the upper surface of the rotating frame 4 away from the football body 3. A vision sensor 13 is fixedly installed on the inner wall of the mounting block 105. The distance measuring sensor 401 and the vision sensor 13 are both prior arts, and their specific structural designs will not be described in detail here. The vision sensor 13 is used to detect the state of the football body 3, and the distance measuring sensor 401 is used to record the position difference of the impact block 5 before and after being placed on the rotating frame 4 in real time.

[0047] A counterweight block 501 is installed inside the end of the impact block 5. The counterweight block 501 is used to increase the mass of the impact block 5, so as to achieve impact forces of different magnitudes on the football body 3, which is convenient for subsequent detection. One end of the connecting rope 502 away from the winding disc 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 operates, it can wind and release the connecting rope 502, so that the impact block 5 can slide up and down on the surface of the rotating frame 4, which is convenient for repeatedly impacting the surface of the football body 3.

[0048] Refer to Figures 4 to 5 and Figure 10, reset electric push rods 601 are fixedly installed on the inner walls on both the front and rear sides of the installation block 105. The output end of the reset electric push rod 601 is fixedly installed with a reset block 6. The surface of the reset block 6 close to the football body 3 is in contact with the football body 3. An adjustment motor 603 is fixedly installed below the reset block 6. The output end of the adjustment motor 603 is key-connected with an adjustment roller 604. One side of the adjustment roller 604 is in contact with the surface of the football body 3. A liquid cavity 602 is opened above the reset block 6. EVA glue is stored inside the liquid cavity 602. A small notch 605 is opened inside the reset block 6. The upper end of the small notch 605 communicates with the inside of the liquid cavity 602. The lower end of the small notch 605 is in contact with the surface of the adjustment roller 604. In this way, the EVA glue stored inside 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.

[0049] The specific working principle of the present invention is as follows: In the initial state, the closing motor 8 rotates, and 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 contracts, and 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 the position on the same horizontal plane as the inner bottom surface of the outer shell 1. The two reset blocks 6 are close to the football body 3, and the adjustment roller 604 contacts the football body 3. The position of the football body 3 is initially fixed, which is convenient for subsequent collision tests. The position control angle motor 201 rotates at this position 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 will not slip. The winding motor 403 rotates. The output shaft of the winding motor 403 is connected to the winding disc 404 through a transmission belt. Initially, the winding disc 404 completely winds up the connecting rope 502, and the impact block 5 contacts the distance measuring sensor 401.

[0050] Control the rotation of the angle motor 201. The rotation of the angle motor 201 can cause the connecting frame 2 to rotate inside the rotation 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 rotating directions of the front and rear rotating frames 4 are different. The mass of the impact block 5 is less than that of the football. When the impact block 5 impacts the surface of the football body 3, the impact block 5 rebounds while the impact position of the football body 3 will deform. By replacing different counterweight blocks 501 to change the mass, the magnitude of the impact force can be controlled. When the impact block 5 impacts the football body 3, the surface of the football body 3 deforms. Affected by factors such as the material and structure of the football, the height that the impact block 5 rises when it rebounds will be less than the initial lowered height. Through the inclination angle of the rotating frame 4 and the placement position and the difference in the rebound position of the impact block 5 inside the rotating frame 4, the magnitude of the rebound force of the football body 3 after being impacted can be obtained. Combining with the mass of the football, the size of the football rebound rate can be analyzed. Before measuring the rebound rate with this device, multiple standard footballs can be used for testing first to obtain experimental samples of the standard footballs.

[0051] The contact part between the rotating frame 4 and the impact block 5 is designed as an arc surface that fits the surface of the impact block 5, and balls are installed at the contact part between the rotating frame 4 and the impact block 5. 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 smoothly and impact the football body 3. When the impact block 5 impacts the football body 3, the impact force is affected not only by the counterweight block 501 but also by the placement position. The winding motor 403 releases an appropriate length of the connecting rope 502 to adjust the initial placement position of the impact block 5. When placing, the winding motor 403 will control the winding disc 404 to quickly release the connecting rope 502, and the release speed of the connecting rope 502 will be greater than the sliding speed of the impact block 5. Therefore, the connecting rope 502 will not affect the sliding and rebound of the impact block 5. When the impact block 5 rebounds to the maximum height, the ranging sensor 401 will monitor in real time the distance between the impact block 5 and the ranging sensor 401 on the rotating frame 3, analyze the position before the impact block 5 impacts and the rebound position after the impact, obtain the height difference, and calculate the magnitude of the energy loss using the height difference. After the data is analyzed by the internal processor, the size of the rebound rate is obtained. After the measurement is completed, the winding disc 404 rewinds the connecting rope 502, and the impact block 5 will reach the original height again, facilitating multiple measurements at the same position. The entire operation procedure is inside the device, without the need to pick up the ball again or find the same position to accurately test the rebound rate of a specific position of the football body 3.

[0052] 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.

[0053] 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.

[0054] 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), the ball drop opening (103) being disposed at the lower end of the housing (1) and being in communication with the interior of the detection cavity (104); 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); The upper surface of the rotating frame (4) is slidably connected to a collision block (5), the lower end of the collision block (5) is movably mounted with a ball that is in rotational contact with the upper surface of the rotating frame (4), and the end of the connecting rope (502) away from the winding disk (404) is fixedly connected to the end of the collision block (5) after being wound around the guide wheel (402); 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); 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); 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).

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 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).

5. A soccer ball rebound rate measuring device according to claim 4, 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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