Intelligent racket string strength detection equipment

Abstract

The invention relates to the technical field of racket string detection, in particular to racket string strength intelligent detection equipment which comprises a detection table, installation supporting columns are arranged on the two sides of the upper end of the detection table, a detection frame is arranged on the installation supporting columns, a sliding cover is arranged on one side of the detection frame, and a sliding block is arranged in the sliding cover in a sliding mode. A rubber head is arranged at one end of the sliding block, a spring rod is arranged at the other end of the sliding block, a mounting hole is formed in the detection table, and a rotating device is arranged in the mounting hole; the rotating arm is driven to rotate through the power spring, then the racket fixed to the rotating arm strikes the rubber head, the strength of the racket strings is calculated according to the displacement of the sliding block and the deformation situation, detected by the pressure probe, of the racket strings, the real situation when the racket hits the ball is simulated in the mode, and measured data are reliable.

Description

Technical Field

[0001] This application relates to the technical field of racket string testing, and in particular to an intelligent racket string strength testing device. Background Technology

[0002] Racket string strength testing transforms subjective feel into objective data, a crucial step in ensuring athletic performance and safety. For players, it helps optimize hitting power, control, and feel, and allows for planning string replacement cycles based on string durability data, thereby improving performance, preventing accidental string breakage, and reducing the risk of sports injuries. For manufacturers, it is the cornerstone for ensuring consistent product quality, driving innovation in new materials and structures, and providing a scientific basis for marketing claims. This test, through quantitative analysis of string tension, fatigue life, and tension retention, achieves precise control and optimization of the performance of this core hitting interface—the racket.

[0003] For example, a strength testing device for badminton rackets, as disclosed in announcement number CN216594483U, includes two symmetrically arranged support columns. A rectangular bracket is fixedly connected to the top of each support column. A support plate is positioned between the two rectangular brackets. Two concave plates are slidably arranged at the bottom of the support plate. A connecting block is detachably installed on the inner side of each concave plate. A first movable plate is fixedly connected to the bottom of each connecting block. A second movable plate is movably connected between the two first movable plates. A first cylinder is movably installed on the lower side of each first movable plate. The output end of the first cylinder is fixedly connected to a connecting plate movably connected to the first and second movable plates. A detection plate is positioned on the lower side of the two connecting plates. A screw drives the detection block to move via a slider, thereby performing lateral strength testing on the badminton racket strings. Adjusting the height of the detection plate allows for vertical strength testing on the badminton racket strings.

[0004] However, the existing technologies still have some shortcomings in testing racket string strength: 1. The existing technologies fix both ends of the string with the cooperation of the detection block and the detection plate to test the racket string. However, due to differences in stringing technology, the strength of the racket may still be affected after the stringing is completed, even if the string is of qualified quality. The existing devices cannot test rackets with completed stringing. A device for testing the strings of finished rackets is still needed.

[0005] 2. The existing technology described above detects the horizontal and vertical strength of the racket strings by adjusting the relative positions of the two detection blocks and the detection plate, and by using a screw to move the detection blocks via a slider and adjusting the height of the detection plate. However, this detection method is a static detection and cannot fully simulate the actual hitting situation, so it can be improved.

[0006] Based on this, and given the above points, there is still room for improvement in existing technologies for detecting racket string strength. Summary of the Invention

[0007] To address the aforementioned technical problems, this application provides an intelligent racket string strength detection device, employing the following technical solution: A smart racket string strength testing device includes a testing platform with mounting supports on both sides of the upper end of the testing platform. A testing frame is mounted on the mounting supports. A sliding cover is provided on one side of the testing frame, and a sliding block is slidably disposed in the sliding cover. A rubber head is provided at one end of the sliding block, and a spring rod is provided at the other end of the sliding block. A mounting hole is provided on the testing platform, and a rotating device is disposed in the mounting hole.

[0008] Preferably, the rotating device includes a rotating arm rotatably mounted in the middle of the mounting hole, a sliding plate slidably disposed at one end of the rotating arm, and a plurality of pressure probes disposed at the end of the sliding plate opposite to the rotating arm.

[0009] Preferably, a power unit is provided at the lower end of the testing platform. The power unit includes mounting side plates on both sides of the testing platform. A mounting slide plate is provided on both mounting side plates. A sliding cylinder is symmetrically arranged on one side of the mounting slide plate. A sliding rod is slidably arranged in each sliding cylinder. A power spring connects the sliding rod and the sliding cylinder. A sliding hole is opened at the end of the rotating arm away from the sliding plate. A connecting slider is slidably arranged in the sliding hole. A connecting ring is provided at the end of the sliding rod away from the sliding cylinder, and the connecting ring is rotatably mounted on both ends of the connecting slider.

[0010] Preferably, a firing energy storage assembly is provided at one end of the testing platform. The firing energy storage assembly includes a connecting frame disposed at the end of the two connecting rings opposite to the sliding rod. A first mounting end plate is installed on the end of the testing platform facing the connecting frame. A guide frame is installed on the first mounting end plate. A guide wheel is rotatably mounted on the guide frame via a wheel axle. A rotating shaft is rotatably mounted on the first mounting end plate. A rotating handle is provided at the end of the rotating shaft opposite to the connecting frame. A winding reel is provided at the end of the rotating shaft opposite to the rotating handle. A connecting rope is wound on the winding reel, and the connecting rope is connected to the side end of the connecting frame through the guidance of the guide wheel.

[0011] Preferably, a limiting component is provided between the take-up reel and the rotating shaft. The limiting component includes a connecting platform disposed on the side end of the take-up reel. A sliding groove is provided in the middle of the connecting platform. A sliding table is slidably disposed in the sliding groove, and the rotating shaft is connected to the middle of the sliding table. A connecting spring is provided between the sliding table and the connecting platform.

[0012] Preferably, the limiting component further includes a ratchet tooth provided in the connecting platform, a mounting post provided on the side of the first mounting end plate facing the connecting platform, a pawl that cooperates with the ratchet tooth rotatably mounted on the mounting post, and a pressing button rotatably mounted in the middle of the rotating handle.

[0013] Preferably, the testing platform is provided with an adjustment device at the end opposite to the first mounting end plate. The adjustment device includes a second mounting end plate disposed at the end of the testing platform opposite to the first mounting end plate. An adjustment screw is threadedly connected to the middle of the second mounting end plate, and one end of the adjustment screw is connected to the mounting slide plate. Mounting sliding holes are provided on both mounting side plates, and the mounting slide plate is slidably connected to the mounting sliding holes. An adjustment handle is provided at the end of the adjustment screw opposite to the mounting slide plate.

[0014] Preferably, the rotating arm is provided with a fixing component, which includes fixing blocks disposed on both sides of the upper end of the rotating arm. A rotating screw is rotatably mounted on both fixing blocks, and the rotating screw is symmetrically provided with threads in opposite directions. A handle is provided at one end of the rotating screw. Fixing plates are symmetrically mounted on the rotating screw, and the fixing plates are respectively mounted on the threads in opposite directions on the rotating screw. A limit block is provided on the rotating arm, and one end of the two fixing plates is slidably mounted on the limit block.

[0015] Preferably, a locking component is provided at one end of the fixed clamping plate away from the limiting block. The locking component includes a telescopic column disposed on one side away from the fixed clamping plate. A clamping block is disposed at one end of the telescopic column away from the fixed clamping plate, and the clamping block is located on both sides of the mounting slide plate. A clamping spring connecting the clamping block and the fixed clamping plate is sleeved on the telescopic column.

[0016] Preferably, the two mounting supports are provided with adjustment sliding holes, and a mounting slider is slidably disposed in the adjustment sliding holes. Sliding strips are respectively provided on both sides of the detection frame, and the sliding strips pass through the middle of the mounting slider and are slidably connected to the mounting slider.

[0017] Preferably, the mounting support side end and the sliding strip side end are provided with a connecting hole, a fixing rod is slidably disposed in the mounting slider, and the fixing rod passes through the connecting hole on the mounting support and the sliding strip. A top block is provided at one end of the fixing rod facing the sliding strip, and a fixing ring is connected to the other end of the fixing rod by a thread.

[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. This invention uses a power spring to drive the rotating arm to rotate, thereby causing the racket fixed on the rotating arm to strike the rubber head. The strength of the racket strings is calculated based on the displacement of the sliding block and the deformation of the racket strings detected by the pressure probe. This method simulates the real situation when the racket hits the ball, and the measured data is relatively reliable.

[0019] 2. The present invention prevents the winding reel from reversing when the winding reel is wound around the connecting rope by setting pawl and ratchet teeth, so as to stretch the power spring and store power. Furthermore, the position of the mounting plate can be adjusted by adjusting the handle to change the potential energy of the power spring and adjust the force of the racket hitting the rubber head.

[0020] 3. The present invention, through the setting of a fixed clamping plate and a clamping block, enables the fixed clamping plate to fix the racket when the rotating screw is rotated, and the clamping block to fix the sliding plate so that the pressure probe is facing the racket net to detect the racket string deformation. Furthermore, the position of the movable detection frame can be adjusted to adjust the position of the racket hitting the rubber block to detect the racket string strength in each area. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the rotating device of the present invention.

[0023] Figure 3 This is a schematic diagram of the power device of the present invention.

[0024] Figure 4 This is a schematic diagram of the structure of the energy storage component for firing according to the present invention.

[0025] Figure 5 This is a schematic diagram of the structure of the limiting component of the present invention.

[0026] Figure 6 This is a schematic diagram of the structure of the regulating device of the present invention.

[0027] Figure 7 This is a schematic diagram of the structure of the fixing component of the present invention.

[0028] Figure 8 This is a schematic diagram of the locking component of the present invention.

[0029] Figure 9 This is a schematic diagram of the structure of the adjusting sliding hole, mounting slider, sliding bar, connecting hole, fixing rod, top block and fixing ring of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 11. Testing table; 12. Mounting support; 13. Testing frame; 14. Sliding cover; 15. Sliding block; 16. Rubber head; 17. Spring rod; 18. Mounting hole; 2. Rotating device; 21. Rotating arm; 22. Sliding plate; 23. Pressure probe; 3. Power unit; 31. Mounting side plate; 32. Mounting slide plate; 33. Sliding cylinder; 34. Sliding rod; 35. Power spring; 36. Sliding hole; 37. Connecting slider; 38. Connecting ring; 4. Activation energy storage assembly; 41. Connecting frame; 42. First mounting end plate; 43. Guide frame; 44. Axle; 45. Guide wheel; 46. Rotating shaft; 47. Rotating handle; 48. Reel; 49. 5. Connecting rope; 5. Limiting assembly; 51. Connecting platform; 52. Sliding groove; 53. Sliding platform; 54. Connecting spring; 55. Ratchet tooth; 56. Mounting post; 57. Pawl; 58. Press button; 6. Adjusting device; 61. Second mounting end plate; 62. Adjusting screw; 63. Mounting sliding hole; 64. Adjusting handle; 7. Fixing assembly; 71. Fixing block; 72. Rotating screw; 73. Rotating handle; 74. Fixing clamp; 75. Limiting block; 8. Locking assembly; 81. Telescopic post; 82. Clamping block; 83. Clamping spring; 91. Adjusting sliding hole; 92. Mounting slider; 93. Sliding bar; 94. Connecting hole; 95. Fixing rod; 96. Top block; 97. Fixing ring. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1 to 9 This application will be described in further detail.

[0032] This application discloses an intelligent racket string strength detection device that simulates the real situation of a racket hitting a ball and detects the strength of the racket strings based on the displacement of the ball after being hit and the deformation of the racket strings.

[0033] Example 1: Reference Figure 1 A smart racket string strength testing device includes a testing platform 11, with mounting supports 12 on both sides of the upper end of the testing platform 11, a testing frame 13 on the mounting supports 12, a sliding cover 14 on one side of the testing frame 13, a sliding block 15 slidably disposed in the sliding cover 14, a rubber head 16 at one end of the sliding block 15 simulating a hit ball, a spring rod 17 at the other end of the sliding block 15, and a mounting hole 18 on the testing platform 11.

[0034] When testing the strength of the racket strings, the sliding block 15 is compressed by hitting the rubber head 16, causing the spring rod 17 to slide. The force of the racket hitting the rubber head 16 can be calculated based on the sliding distance of the sliding block 15.

[0035] refer to Figure 2The diagram shows the structure of the rotating device 2 of the present invention. In order to detect the deformation of the racket strings when the racket hits the rubber head 16, a rotating device 2 is provided in the mounting hole 18. The rotating device 2 includes a rotating arm 21 rotatably mounted in the middle of the mounting hole 18. When detecting the strength of the racket strings, the racket is fixed on the rotating arm 21. A sliding plate 22 is slidably provided at one end of the rotating arm 21 so that the position of the sliding plate 22 can be adjusted according to the length of the racket. A plurality of pressure probes 23 are provided at the end of the sliding plate 22 away from the rotating arm 21. When the rubber head 16 is hit, the pressure probes 23 are located on the racket strings and the deformation of the racket strings can be detected. At this time, the strength of the racket strings can be calculated by combining the sliding distance of the sliding block 15.

[0036] refer to Figure 3 The diagram shows the structure of the power device 3 of the present invention. In order to provide power for the racket to strike the rubber head 16, the power device 3 is provided at the lower end of the test platform 11. The power device 3 includes mounting side plates 31 on both sides of the test platform 11. Mounting slide plates 32 are provided on both mounting side plates 31. Sliding cylinders 33 are symmetrically arranged on one side of the mounting slide plates 32. Sliding rods 34 are slidably arranged in each sliding cylinder 33. A power spring 35 is connected between the sliding rods 34 and the sliding cylinders 33 to provide power for the racket to strike the rubber head 16. A sliding hole 36 is opened at the end of the rotating arm 21 away from the sliding plate 22. A connecting slider 37 is slidably arranged in the sliding hole 36. A connecting ring 38 is provided at the end of the sliding rod 34 away from the sliding cylinder 33. The connecting ring 38 is rotatably installed at both ends of the connecting slider 37. When the sliding rod 34 slides, it drives the rotating arm 21 to rotate through the connecting slider 37.

[0037] Before striking the rubber head 16, the sliding rod 34 is pulled to stretch the power spring 35, and at the same time the connecting slider 37 slides towards one end of the rotating arm 21, causing the rotating arm 21 to rotate, so that there is a certain acceleration space when striking the rubber head 16. Then the sliding rod 34 is released, the power spring 35 rebounds, and the connecting slider 37 slides towards the middle of the rotating arm 21 under the action of the power spring 35, so as to drive the rotating arm 21 to strike the rubber head 16 at high speed.

[0038] refer to Figure 4This is a schematic diagram of the structure of the firing energy storage assembly 4 of the present invention. In order to stretch the power spring 35 and accumulate the rebound power of the power spring 35, and then drive the rotating arm 21 to rotate rapidly through the connecting slider 37, the firing energy storage assembly 4 is provided at one end of the test table 11. The firing energy storage assembly 4 includes a connecting frame 41 provided at the end of the two connecting rings 38 away from the sliding rod 34. A first mounting end plate 42 is installed on the end of the test table 11 facing the connecting frame 41. A guide frame 43 is installed on the first mounting end plate 42. A wheel axle 44 passes through the guide frame 43. A guide wheel 45 is rotatably mounted, and a rotating shaft 46 is rotatably mounted on the first mounting end plate 42. A rotating handle 47 is provided at one end of the rotating shaft 46 away from the connecting frame 41, and a take-up reel 48 is provided at the other end of the rotating shaft 46 away from the rotating handle 47. Rotating the rotating handle 47 causes the take-up reel 48 to rotate, and a connecting rope 49 is wound on the take-up reel 48. When the take-up reel 48 rotates, the connecting rope 49 winds around or unwinds the take-up reel 48, and the connecting rope 49 is connected to the side end of the connecting frame 41 through the guide wheel 45 so that the connecting rope 49 can pull the connecting frame 41.

[0039] When the spring is stretched, the take-up reel 48 is rotated by rotating the handle 47, which causes the connecting rope 49 to wind around the take-up reel 48. Under the guidance of the guide wheel 45, the connecting rope 49 pulls the sliding rod 34 through the connecting frame 41, which in turn stretches the power spring 35 to store energy. When the handle 47 is released, the connecting frame 41 is no longer restricted by the connecting rope 49, and the sliding rod 34 slides towards the sliding cylinder 33 under the action of the power spring 35, which in turn drives the connecting slider 37 to slide, causing the rotating arm 21 to rotate rapidly.

[0040] refer to Figure 5 This is a schematic diagram of the limiting component 5 of the present invention. In order to restrict the unidirectional rotation of the take-up reel 48 when the connecting rope 49 is wound around the take-up reel 48, and to prevent the power spring 35 from rebounding after the take-up reel 48 is released, a limiting component 5 is provided between the take-up reel 48 and the rotating shaft 46. The limiting component 5 includes a connecting platform 51 provided on the side end of the take-up reel 48. A sliding groove 52 is provided in the middle of the connecting platform 51. A sliding table 53 is slidably disposed in the sliding groove 52, and the rotating shaft 46 is connected to the middle of the sliding table 53. A connecting spring 54 is provided between 53 and the connecting platform 51. The limiting assembly 5 also includes a ratchet tooth 55 provided in the connecting platform 51. A mounting post 56 is provided on the side of the first mounting end plate 42 facing the connecting platform 51. A pawl 57 that cooperates with the ratchet tooth 55 is rotatably mounted on the mounting post 56. A pressing button 58 is rotatably mounted in the middle of the rotating handle 47 to prevent the sliding platform 53 from sliding by pressing the rotating handle 47, and to prevent the rotating handle 47 from rotating under the action of the power spring 35 and causing injury to the operator.

[0041] Rotating the take-up reel 48 by rotating the handle 47 causes the connecting rope 49 to wind onto the take-up reel 48. At the same time, the ratchet 57 restricts the ratchet teeth 55, preventing the take-up reel 48 from reversing. After the connecting rope 49 is wound onto the take-up reel 48, the power spring 35 is stretched. Then, the press button 58 is pressed, causing the sliding table 53 to compress the connecting spring 54, thereby causing the ratchet teeth 55 to disengage from the ratchet 57. The power spring 35 rebounds, the rotating arm 21 rotates, and the connecting rope 49 wound on the take-up reel 48 is unwound.

[0042] refer to Figure 6 This is a schematic diagram of the structure of the adjusting device 6 of the present invention. In order to adjust the length of the power spring 35 when it is stretched, and thus condition the power of the power spring 35 to drive the rotating arm 21 to rotate, so as to change the speed at which the racket hits the rubber head 16, the adjusting device 6 is provided at the end of the testing platform 11 away from the first mounting end plate 42. The adjusting device 6 includes a second mounting end plate 61 provided at the end of the testing platform 11 away from the first mounting end plate 42. An adjusting screw 62 is threadedly connected to the middle of the second mounting end plate 61. One end of the adjusting screw 62 is connected to the mounting slide plate 32. When the adjusting screw 62 rotates, it moves axially due to the threaded connection between the adjusting screw 62 and the mounting end plate. Both mounting side plates 31 are provided with mounting sliding holes 63, and the mounting slide plate 32 is slidably connected in the mounting sliding holes 63. When the adjusting screw 62 moves axially, it drives the mounting slide plate 32 to slide in the mounting sliding holes 63. The end of the adjusting screw 62 away from the mounting slide plate 32 is provided with an adjusting handle 64. The adjusting screw 62 is rotated by rotating the handle 47.

[0043] Rotating the adjusting handle 64 drives the adjusting screw 62 to rotate. Then, with the adjusting screw 62 threadedly connected to the second mounting end plate 61, the adjusting screw 62 drives the mounting slide plate 32 to slide in the mounting slide hole 63, thereby changing the position of one end of the power spring 35. This adjusts the length of the power spring 35 after it is stretched, thereby adjusting the power of the power spring 35 when it rebounds.

[0044] Example 2: Reference Figure 7 Based on Embodiment 1, in order to fix the racket to the rotating arm 21 for measuring the racket string strength, a fixing component 7 is provided on the rotating arm 21. The fixing component 7 includes fixing blocks 71 on both sides of the upper end of the rotating arm 21. A rotating screw 72 is rotatably mounted on both fixing blocks 71, and the rotating screw 72 has symmetrically arranged threads with opposite helical directions. A handle 73 is provided at one end of the rotating screw 72. Fixing clamps 74 are symmetrically mounted on the rotating screw 72, and the fixing clamps 74 are respectively installed on the threads with opposite helical directions on the rotating screw 72. The fixing clamps 74 are used to hold and fix the racket handle. A limit block 75 is provided on the rotating arm 21, and one end of the two fixing clamps 74 is slidably mounted on the limit block 75. The bottom of the racket abuts against the limit block 75 to prevent the racket from sliding axially.

[0045] Insert the racket handle between the two fixing plates 74 and press the lower end of the racket handle against the limiting block 75. Then rotate the handle 73 to rotate the rotating screw 72. The two fixing plates 74 slide towards each other under the threaded connection, and together hold the racket handle to fix the racket.

[0046] refer to Figure 8 This is a schematic diagram of the locking component 8 of the present invention. In order to lock the sliding plate 22 when detecting the racket string strength and ensure that the racket string is on the pressure probe 23, a locking component 8 is provided at the end of the fixed clamping plate 74 away from the limiting block 75. The locking component 8 includes a telescopic column 81 that is located on the side opposite to the fixed clamping plate 74. A clamping block 82 is provided at the end of the telescopic column 81 away from the fixed clamping plate 74, and the clamping block 82 is located on both sides of the mounting slide plate 32. A clamping spring 83 is sleeved on the telescopic column 81 to connect the clamping block 82 and the fixed clamping plate 74. When the handle 73 is rotated, the two fixed clamping plates 74 clamp the racket handle, and the two clamping blocks 82 clamp the sliding plate 22 under the action of the clamping spring 83, so as to detect the racket string strength.

[0047] After the racket strings are placed on the pressure probe 23, when the fixed clamp 74 clamps the racket handle, that is, the two fixed clamps 74 slide towards each other. At this time, the clamping block 82 clamps the fixed sliding plate 22 under the elastic force of the clamping spring 83 to prevent the sliding plate 22 from sliding.

[0048] refer to Figure 9 To adjust the position of the racket strings when they strike the rubber head 16, two mounting supports 12 are provided with adjustment sliding holes 91. A mounting slider 92 is slidably installed in the adjustment sliding holes 91. Sliding strips 93 are provided on both sides of the detection frame 13. The sliding strips 93 pass through the middle of the mounting sliders 92 and are slidably connected to the mounting sliders 92. A connecting hole 94 is provided at the side end of the mounting support 12 and the side end of the sliding strip 93. A fixing rod 95 is slidably installed in the mounting slider 92 and passes through the connecting hole 94 on the mounting support 12 and the sliding strip 93. A top block 96 is provided at the end of the fixing rod 95 facing the sliding strip 93. A fixing ring 97 is threaded to the other end of the fixing rod 95. When the fixing ring 97 is rotated, the top block 96 and the fixing ring 97 together press and lock the position of the detection frame 13.

[0049] Slide the slider 92 according to the length of the racket to adjust the height of the test frame 13. Then slide the slider 93 into the slider 92 to adjust the position of the racket net when hitting the rubber head 16, so as to test the string strength of each area of ​​the racket. After adjusting the position of the test frame 13, rotate the fixing ring 97 to lock the test frame 13 in order to test the string strength.

[0050] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A smart racket string strength testing device, comprising a testing platform (11), wherein mounting supports (12) are provided on both sides of the upper end of the testing platform (11), and a testing frame (13) is provided on the mounting supports (12), characterized in that: A sliding cover (14) is provided on one side of the testing frame (13), and a sliding block (15) is slidably provided in the sliding cover (14). A rubber head (16) is provided at one end of the sliding block (15), and a spring rod (17) is provided at the other end of the sliding block (15). An installation hole (18) is provided on the testing table (11), and a rotating device (2) is provided in the installation hole (18). The rotating device (2) includes a rotating arm (21) rotatably mounted in the middle of the mounting hole (18). A sliding plate (22) is slidably provided at one end of the rotating arm (21), and a plurality of pressure probes (23) are provided at the end of the sliding plate (22) away from the rotating arm (21).

2. The intelligent racket string strength testing device according to claim 1, characterized in that: The lower end of the testing platform (11) is provided with a power device (3). The power device (3) includes mounting side plates (31) on both sides of the testing platform (11). Mounting slide plates (32) are provided on both mounting side plates (31). Sliding cylinders (33) are symmetrically arranged on one side of the mounting slide plates (32). Sliding rods (34) are slidably arranged in each sliding cylinder (33). A power spring (35) is connected between the sliding rods (34) and the sliding cylinders (33). A sliding hole (36) is opened at the end of the rotating arm (21) away from the sliding plate (22). A connecting slider (37) is slidably arranged in the sliding hole (36). A connecting ring (38) is provided at the end of the sliding rod (34) away from the sliding cylinder (33). The connecting ring (38) is rotatably installed at both ends of the connecting slider (37).

3. The intelligent racket string strength testing device according to claim 2, characterized in that: The testing platform (11) is provided with a firing energy storage component (4) at one end. The firing energy storage component (4) includes a connecting frame (41) located at the end of the two connecting rings (38) away from the sliding rod (34). The testing platform (11) is provided with a first mounting end plate (42) facing the connecting frame (41). A guide frame (43) is mounted on the first mounting end plate (42). A guide wheel (45) is rotatably mounted on the guide frame (43) via a wheel axle (44). A rotating shaft (46) is rotatably mounted on the first mounting end plate (42). A rotating handle (47) is provided at the end of the rotating shaft (46) away from the connecting frame (41). A winding reel (48) is provided at the end of the rotating shaft (46) away from the rotating handle (47). A connecting rope (49) is wound on the winding reel (48), and the connecting rope (49) is connected to the side end of the connecting frame (41) through the guide wheel (45).

4. The intelligent racket string strength testing device according to claim 3, characterized in that: A limiting component (5) is provided between the take-up reel (48) and the rotating shaft (46). The limiting component (5) includes a connecting platform (51) located on the side of the take-up reel (48). A sliding groove (52) is provided in the middle of the connecting platform (51). A sliding table (53) is slidably arranged in the sliding groove (52), and the rotating shaft (46) is connected in the middle of the sliding table (53). A connecting spring (54) is provided between the sliding table (53) and the connecting platform (51).

5. The intelligent racket string strength testing device according to claim 4, characterized in that: The limiting component (5) also includes a ratchet tooth (55) provided in the connecting platform (51), and a mounting post (56) is provided on the side of the first mounting end plate (42) facing the connecting platform (51). A pawl (57) that cooperates with the ratchet tooth (55) is rotatably mounted on the mounting post (56), and a push button (58) is rotatably mounted in the middle of the rotating handle (47).

6. The intelligent racket string strength testing device according to claim 3, characterized in that: An adjustment device (6) is provided at the end of the testing platform (11) away from the first mounting end plate (42). The adjustment device (6) includes a second mounting end plate (61) located at the end of the testing platform (11) away from the first mounting end plate (42). An adjustment screw (62) is threadedly connected to the middle of the second mounting end plate (61), and one end of the adjustment screw (62) is connected to the mounting slide plate (32). Mounting sliding holes (63) are provided on both mounting side plates (31), and the mounting slide plate (32) is slidably connected in the mounting sliding holes (63). An adjustment handle (64) is provided at the end of the adjustment screw (62) away from the mounting slide plate (32).

7. The intelligent racket string strength testing device according to claim 1, characterized in that: The rotating arm (21) is provided with a fixing component (7), which includes fixing blocks (71) on both sides of the upper end of the rotating arm (21). A rotating screw (72) is rotatably mounted on both fixing blocks (71), and the rotating screw (72) is symmetrically provided with threads in opposite directions. A handle (73) is provided at one end of the rotating screw (72). Fixing plates (74) are symmetrically mounted on the rotating screw (72), and the fixing plates (74) are respectively mounted on the threads in opposite directions on the rotating screw (72). A limit block (75) is provided on the rotating arm (21), and one end of the two fixing plates (74) is slidably mounted on the limit block (75).

8. The intelligent racket string strength testing device according to claim 7, characterized in that: A locking component (8) is provided at one end of the fixed clamping plate (74) away from the limiting block (75). The locking component (8) includes a telescopic column (81) that is located on the side opposite to the fixed clamping plate (74). A clamping block (82) is provided at one end of the telescopic column (81) away from the fixed clamping plate (74). The clamping block (82) is located on both sides of the mounting slide plate (32). A clamping spring (83) connecting the clamping block (82) and the fixed clamping plate (74) is sleeved on the telescopic column (81).

9. The intelligent racket string strength testing device according to claim 1, characterized in that: The two mounting supports (12) are provided with adjustment sliding holes (91), and the mounting sliders (92) are slidably arranged in the adjustment sliding holes (91). The detection frame (13) is provided with sliding strips (93) on both sides respectively. The sliding strips (93) pass through the middle of the mounting sliders (92) and are slidably connected to the mounting sliders (92).

10. The intelligent racket string strength testing device according to claim 9, characterized in that: The mounting support (12) and the sliding bar (93) are provided with a connecting hole (94). A fixing rod (95) is slidably provided in the mounting slider (92), and the fixing rod (95) passes through the connecting hole (94) on the mounting support (12) and the sliding bar (93). A top block (96) is provided at one end of the fixing rod (95) facing the sliding bar (93), and a fixing ring (97) is connected to the other end of the fixing rod (95) by a thread.

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