Impact testing device for sports equipment detection

Abstract

The invention belongs to the technical field of sports equipment detection, and particularly relates to an impact test device for sports equipment detection. The detection bench is fixedly connected with a pair of symmetrically distributed support blocks. A placement plate is arranged at the top ends of the pair of supporting blocks, and the overlook surface of the placement plate is in a concentric-square shape; a limiting mechanism is arranged on the detection table, and the limiting mechanism is used for limiting the basketball board placed on the placing plate; an inverted-L-shaped fixing plate is fixedly connected to the side wall of the detection table, and a first vortex-shaped column is fixedly connected to the vertical face of the inverted-L-shaped fixing plate through a fixed connecting plate. A second vortex-shaped column is fixedly connected to the bottom face of a horizontal plate of the inverted-L-shaped fixing plate, the first vortex-shaped column and the second vortex-shaped column are the same in size, and the second vortex-shaped column is located over the first vortex-shaped column. Vortex-shaped grooves are formed in the inner arc-shaped surfaces and the outer arc-shaped surfaces of the first vortex-shaped column and the second vortex-shaped column; the problems that an existing device is incomplete in detection and too single in detection impact position are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of sports equipment detection, in particular to an impact testing device for sports equipment detection. Background Art

[0002] Sports equipment refers to various sports parts, components and devices.

[0003] A Chinese patent with publication number CN110017961B discloses a sports equipment impact testing system, including an impact testing machine and a test frame, wherein an impact hydraulic cylinder is fixed to the upper end of the test frame by bolts, and the output end of the impact hydraulic cylinder is located inside the test frame, and a connecting plate is welded to the output end of the test frame, and a positioning block is integrally formed on the lower surface of the connecting plate, and a simulation ball is arranged below the connecting plate, and a positioning block is provided on the upper surface of the simulation ball; the upper surface of the simulation ball is bonded to the lower surface of the connecting plate, and the positioning block is bonded to the inside of the simulation ball, thereby increasing the stability of the connection between the connecting plate and the simulation ball, and increasing the stability of the simulation ball fixed to the output end of the impact hydraulic cylinder, and at the same time, the rubber pads bonded to the surfaces of the first support rod and the second support rod facilitate the placement of a basketball board above the rubber pads, thereby improving the ability of the simulation ball to simulate the basketball to impact the basketball board placed above the rubber pads.

[0004] In the prior art, the basketball board is one of the important equipment for basketball. The sturdiness of the basketball board needs to be ensured to avoid the breakage of the basketball board caused by the impact of long-term pitching. For this reason, the detection of the basketball board is generally to directly measure the impact resistance, but there are the following problems: First, the existing impact equipment is generally a surface impact, and generally only directly measures the maximum impact resistance of the basketball board. If it can withstand the maximum impact resistance, it is qualified, but generally does not take into account the actual operation, because the breakage of the basketball board in reality is generally caused by resonance or multiple frequent impacts, and the impact force will not reach the maximum impact force, so the existing detection method is not comprehensive enough; Second: When the basketball board is currently tested, it is generally a surface impact on a fixed position, but in actual operation, the collision position of the basketball board with the shot is irregular, and the impact force is also different. The existing device does not simulate the actual shooting situation, and the detection of the impact position is too single.

[0005] To this end, the present invention provides an impact testing device for detecting sports equipment. Summary of the invention

[0006] In order to solve the problem mentioned in the background technology, the present invention provides an impact testing device for testing sports equipment.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the impact testing device for sports equipment testing described in the present invention comprises a testing platform; a pair of symmetrically distributed support blocks are fixedly connected to the testing platform; a placement plate is provided at the top of the pair of support blocks, and the top view of the placement plate is a circular shape; a limiting mechanism is provided on the testing platform, and the limiting mechanism limits the basketball board placed on the placement plate; an inverted L-shaped fixing plate is fixedly connected to the side wall of the testing platform, and a first vortex column is fixedly connected to the vertical surface of the inverted L-shaped fixing plate through a fixed connecting plate; a second vortex column is fixedly connected to the bottom surface of the horizontal plate of the inverted L-shaped fixing plate, and the first vortex column and the second vortex column are of equal size. Similarly, the second vortex column is located directly above the first vortex column; vortex grooves are provided on the inner and outer arc surfaces of the first vortex column and the second vortex column; a first circular plate slides in the vortex grooves on the inner and outer arc surfaces of the first vortex column, and a cylinder is provided in the first circular plate, the cylinder passes through and is rotatably connected in the first circular plate, a sliding column is slidably connected to the inner wall of the cylinder, and a vibrating ball is provided at the bottom end of the sliding column; a second circular plate slides in the vortex grooves on the inner and outer arc surfaces of the second vortex column, the second circular plate is located directly above the first circular plate, a reciprocating member is provided at the bottom end of the second circular plate, and the reciprocating member can drive the sliding column to slide in the vortex groove of the first vortex column while driving the sliding column to move back and forth up and down.

[0008] Preferably, the reciprocating part includes a first servo motor; the bottom end of the second circular plate is rotatably connected to an inverted "Z"-shaped column, and the bottom end of the inverted "Z"-shaped column is fixedly connected to the first servo motor; the output end of the first servo motor is fixedly connected to a turntable, and a hinged rod is hinged on the side wall of the turntable, and the bottom end of the hinged rod is hinged to the sliding column; the cylinder and the inverted "Z"-shaped column slide synchronously through the rotating unit.

[0009] Preferably, the rotating unit includes a second servo motor; a second servo motor is fixedly connected to the top of the inverted L-shaped fixed plate; a first rotating shaft is provided at the output end of the second servo motor, and the bottom end of the first rotating shaft passes through the inverted L-shaped fixed plate, and the bottom end of the first rotating shaft is divided into a square; the center point of the first rotating shaft coincides with the center point of the first vortex column and the second vortex column; a pair of symmetrically distributed fixed plates are fixedly connected to the side wall of the first rotating shaft, and a first slide groove is provided on the opposite surfaces of the pair of fixed plates; L-shaped sliding rods are fixedly connected to both sides of the inverted "Z"-shaped column, and the L-shaped sliding rods are slidably connected in the first slide groove; a U-shaped plate is fixedly connected to the side wall of the first rotating shaft, and the cylinder slides in the U-shaped plate; the fixed plate is located above the U-shaped plate.

[0010] Preferably, the sliding column includes a first through-sliding column; the bottom end of the hinge rod and the top end of the first through-sliding column are hinged to each other; the first through-sliding column slides in the cylinder; the bottom end of the first through-sliding column is fixedly connected to an adjusting column; a first circular cavity is opened in the adjusting column; a first slide plate is slidably connected in the first circular cavity, and a downward pressure column is fixedly connected to the bottom end of the first slide plate, the downward pressure column extends out of the adjusting column and is fixedly connected to the vibration ball; an adjusting plate is slidably connected to the inner wall of the first circular cavity, and an adjusting spring is fixedly connected between the adjusting plate and the first slide plate; the adjusting plate is limited by a fixing unit.

[0011] Preferably, the fixing unit includes a first through groove; a pair of symmetrically distributed first through grooves are opened in the first circular cavity; an annular block is slidably connected to the outer wall of the adjusting column, and the inner wall of the annular block and the outer wall of the adjusting plate are fixedly connected by a connecting rod, and the connecting rod slides in the first through groove; two groups of symmetrically distributed locking through grooves are opened on the adjusting column; a pair of symmetrically distributed limiting grooves are opened on the inner wall of the annular block; a locking block is fixedly connected to the bottom of the limiting groove through a spring; a pull rod is fixedly connected to the side wall of the locking block, and the pull rod extends out of the annular block; the cross-section of the locking block is an inverted right triangle.

[0012] Preferably, a pair of symmetrically distributed buffer grooves are formed at the top of the support block; a buffer spring is fixedly connected to the bottom end of the buffer groove, and the top end of the buffer spring is fixedly connected to the bottom end of the placement plate; the limiting mechanism includes a first limiting member and a second limiting member; the first limiting member includes a first inverted L-shaped plate; a pair of first inverted L-shaped plates symmetrically distributed about the inverted L-shaped fixing plate are fixedly connected to the detection table; a first lower moving plate is slidably connected to the vertical surface of the first inverted L-shaped plate, and a pair of first limiting plates symmetrically distributed about the horizontal plate of the first inverted L-shaped plate are slidably connected to the top end of the first lower moving plate; A first moving block is fixedly connected to the top of the first downward moving plate through a first elastic telescopic rod; a first opening groove is provided on the first moving block; a first pressing block is fixedly connected to the side wall of the first opening groove through a spring; first sliding columns are rotatably connected to the side walls of both sides of the first moving block near the bottom end; a pair of first limiting plates are provided with first inclined grooves on opposite surfaces, and the first inclined grooves are inclined downward; the first sliding column slides in the first inclined groove; the first pressing block is contracted into the first opening groove by the first contraction unit; the first downward moving plate is moved downward by the first pressing unit.

[0013] Preferably, the second limiting member includes a second inverted L-shaped plate; two groups of second inverted L-shaped plates symmetrically distributed about the first inverted L-shaped plate are fixedly connected to the detection platform; a second lower moving plate is slidably connected to the vertical surface of the second inverted L-shaped plate, and the top of the second lower plate is slidably connected to a pair of second limiting plates symmetrically distributed about the horizontal plate of the second inverted L-shaped plate; the top of the second lower plate is fixedly connected to a second moving block through a second elastic telescopic rod; a second opening groove is provided on the second moving block; a second lower pressure block is fixedly connected to the side wall of the second opening groove by a spring; the side walls on both sides of the second moving block are rotatably connected to a second sliding column near the bottom end; a pair of second limiting plates are provided on the opposite surfaces, and the second inclined groove is inclined downward; the second sliding column slides in the second inclined groove; the second lower pressure block is retracted into the second opening groove by the second contraction unit; the second lower plate moves downward by the second lower pressure unit.

[0014] Preferably, the first contraction unit includes a first sliding groove; a first sliding groove is provided at the bottom end of the horizontal plate of the first inverted L-shaped plate; the first sliding groove is used to place the first moving block and the first pressing block; the cross-section of the first pressing block is an inverted right-angled trapezoid; the second contraction unit includes a second sliding groove; a second sliding groove is provided at the bottom end of the horizontal plate of the second inverted L-shaped plate; the second sliding groove is used to place the second moving block and the second pressing block; the cross-section of the second pressing block is an inverted right-angled trapezoid.

[0015] Preferably, the first pressing unit includes a first cylinder; a first cavity is opened in the detection table; a first cylinder is fixedly connected to the middle part of the bottom end of the first cavity; a first pressing rod is fixedly connected to the bottom end of the first downward moving plate, and the bottom end of the first pressing rod extends into the first cavity and is fixedly connected to a connecting plate; the top end of the piston rod of the first cylinder is fixedly connected to the middle part of the connecting rod; the second pressing unit includes a second cylinder; a second pressing rod is fixedly connected to the bottom end of the second downward moving plate, and the bottom end of the second pressing rod extends into the first cavity and is fixedly connected to an I-shaped plate; a pair of second cylinders symmetrically distributed about the first cylinder are fixedly connected in the first cavity, and the piston rod of the second cylinder is fixedly connected to the bottom end of the I-shaped plate; the I-shaped plate is located above the connecting plate.

[0016] Preferably, a group of first rolling grooves are provided on the top horizontal planes of the first inverted L-shaped plate and the second inverted L-shaped plate; a first rolling ball slides in the first rolling groove; a second rolling groove is provided at the bottom end of the first lower pressure block, and a second rolling ball slides in the second rolling groove; the cross-sections of the first rolling groove and the second rolling groove are notched circles, and the opening diameters of the first rolling groove and the second rolling groove are respectively smaller than the diameters of the first rolling ball and the second rolling ball.

[0017] The beneficial effects of the present invention are as follows: 1. The impact testing device for detecting sports equipment described in the present invention drives the sliding column to move back and forth up and down through the reciprocating member, and then uses the vibrating ball to impact the basketball board to simulate the impact force of real shooting on the basketball board. At the same time, the reciprocating member can drive the cylinder to slide in the vortex groove, and then adjust the impact of the vibrating ball on different positions of the basketball board, so as to further simulate the real shooting operation. The reciprocating member drives the cylinder to slide and the sliding column to move up and down, and can collide with different positions of the basketball board multiple times with different impact forces, which is closer to the real operation, thereby ensuring the comprehensiveness of the detection and the quality of the basketball board.

[0018] 2. The impact testing device for sports equipment inspection described in the present invention allows the center lines of the basketball board and the placement board to coincide with each other through the operation of the first pressing block and the first limiting plate and the second pressing block and the second limiting plate, and allows the basketball board to be stably placed on the placement board, simulating the state of the basketball board being installed on the basketball stand in reality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 The present invention is a three-dimensional Figure 1 ; Figure 2 The present invention is a three-dimensional Figure 2 ; Figure 3 It is a three-dimensional diagram of the reciprocating member; Figure 4 is a cross-sectional view of the sliding column; Figure 5 yes Figure 4 A partial enlarged view of the middle part; Figure 6 yes Figure 4 A partial enlarged view of point B in the middle; Figure 7 This is an exploded view of the sliding column; Figure 8 is a stereogram of the first vortex column; Fig. 9 It is a three-dimensional diagram of the limiting mechanism; Fig.10 is a cross-sectional view of the first inverted L-shaped plate; Fig.11 It is an exploded view of the first inverted L-shaped plate; Fig.12 is a cross-sectional view of the second inverted L-shaped plate; Fig.13 This is the exploded view of the second inverted L-shaped plate; In the figure: 1, test table; 11, support block; 12, placement plate; 13, inverted L-shaped fixing plate; 14, first vortex column; 15, second vortex column; 16, vortex groove; 17, first circular plate; 18, cylinder; 19, sliding column; 191, vibration ball; 2, second circular plate; 21, inverted "Z" shaped column; 22, first servo motor; 23, turntable; 24, hinged rod; 25, second servo motor; 26 , first rotating shaft; 27, fixed plate; 28, first sliding groove; 29, L-shaped sliding rod; 291, U-shaped plate; 3, first sliding column; 31, adjusting column; 32, first circular cavity; 33, first sliding plate; 34, pressing column; 35, adjusting plate; 36, adjusting spring; 4, first through groove; 41, annular block; 42, connecting rod; 43, locking through groove; 44, limiting groove; 45, locking block; 46, pull rod ; 5. first inverted L-shaped plate; 51. first moving block; 52. first opening groove; 53. first pressing block; 54. first moving plate; 55. first limiting plate; 56. first elastic telescopic rod; 57. first sliding column; 58. first inclined groove; 6. second inverted L-shaped plate; 61. second moving block; 62. second opening groove; 63. second pressing block; 64. second moving plate; 65. second limiting plate; 66. second elastic telescopic rod; 67. second sliding column; 68. second inclined groove; 7. first sliding slot; 71. second sliding slot; 72. first cylinder; 73. first pressing rod; 74. connecting plate; 75. second cylinder; 76. second pressing rod; 77. I-shaped plate; 8. first rolling groove; 81. first rolling ball; 82. second rolling groove; 83. second rolling ball; 84. buffer groove; 85. buffer spring. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figures 1 to 13As shown, an impact testing device for sports equipment testing according to an embodiment of the present invention comprises a testing platform 1; a pair of symmetrically distributed support blocks 11 are fixedly connected to the testing platform 1; a placement plate 12 is provided on the top of the pair of support blocks 11, and the placement plate 12 is a circular shape when viewed from above; a limiting mechanism is provided on the testing platform 1, and the limiting mechanism limits the position of the basketball board placed on the placement plate 12; an inverted L-shaped fixing plate 13 is fixedly connected to the side wall of the testing platform 1, and a vertical surface of the inverted L-shaped fixing plate 13 is provided. The fixed connecting plate is fixedly connected with a first vortex column 14; the horizontal plate bottom surface of the inverted L-shaped fixed plate 13 is fixedly connected with a second vortex column 15, and the first vortex column 14 and the second vortex column 15 are of the same size, and the second vortex column 15 is located directly above the first vortex column 14; the first vortex column 14 and the second vortex column 15 are both provided with vortex grooves 16 on the inner and outer arc surfaces; a first circular plate 17 slides in the vortex grooves 16 on the inner and outer arc surfaces of the first vortex column 14, and a cylinder 18 is provided in the first circular plate 17 , the cylinder 18 passes through and is rotatably connected in the first circular plate 17, the inner wall of the cylinder 18 is slidably connected with a sliding column 19, and a vibrating ball 191 is provided at the bottom end of the sliding column 19; a second circular plate 2 slides in the vortex groove 16 on the inner and outer arc surfaces of the second vortex column 15, the second circular plate 2 is located directly above the first circular plate 17, and a reciprocating member is provided at the bottom end of the second circular plate 2, and the reciprocating member drives the sliding column 19 to move up and down, while being able to drive the sliding column 19 to slide in the vortex groove 16 of the first vortex column 14; in the prior art, the basketball board is one of the important equipment for basketball sports, and it is necessary to ensure the firmness of the basketball board to avoid the breakage of the basketball board caused by the impact of long-term pitching. For this reason, the detection of the basketball board is generally performed by direct measurement Impact resistance, but there are the following problems: First, the existing impact equipment is generally a surface impact, and generally only directly measures the maximum impact resistance of the basketball board. If it can withstand the maximum impact resistance, it is qualified, but generally does not take into account the actual operation, because the breakage of the basketball board in reality is generally caused by resonance or multiple frequent impacts, and the impact force will not reach the maximum impact force, so the existing detection method is not comprehensive enough; Second: When testing the basketball board, the surface impact is generally performed on a fixed position, but in actual operation, the collision position of the basketball board when shooting is irregular, and the impact force is also different. The existing device does not simulate the actual shooting situation, and the detection of the impact position is too single;For this reason, when the present invention is working, the basketball board (the basketball board at this time has been tested for maximum impact resistance, and then the device is used to simulate the actual impact test) is first placed on the placement plate 12. Because the top view of the placement plate 12 is a circular shape, and the size of the placement plate 12 and the size of the basketball board are proportionally reduced, after the basketball board is placed on the placement plate 12, the limiting mechanism fixes the basketball board to simulate the state of the basketball board being installed on the basketball stand, which can better simulate the actual operation situation. At the same time, after the basketball board is placed, the sliding column 19 is driven by the reciprocating member to move up and down, and then the basketball board is impacted by the vibration ball 191 to simulate the impact force of the actual shooting on the basketball board. At the same time, the reciprocating member can drive the cylinder 18 to slide in the vortex groove 16, and then adjust the impact of the vibration ball 191 on different positions of the basketball board, and then further simulate the actual shooting operation. The reciprocating member drives the cylinder 18 to slide and the sliding column 19 to move up and down, and can collide with different positions of the basketball board multiple times using different impact forces, which is further close to the actual operation, thereby ensuring the comprehensiveness of the detection and the quality of the basketball board. ;

[0023] The reciprocating member includes a first servo motor 22; the bottom end of the second circular plate 2 is rotatably connected to an inverted "Z"-shaped column 21, and the bottom end of the inverted "Z"-shaped column 21 is fixedly connected to the first servo motor 22; the output end of the first servo motor 22 is fixedly connected to a turntable 23, and a hinged rod 24 is hinged on the side wall of the turntable 23, and the bottom end of the hinged rod 24 is hinged to the sliding column 19; the cylinder 18 and the inverted "Z"-shaped column 21 slide synchronously through the rotating unit; when working, when the first servo motor 22 drives the turntable 23 to rotate, the rotation of the turntable 23 can drive the sliding column 19 to slide up and down in the cylinder 18 through the hinged rod 24, and at the same time, the rotation speed of the first servo motor 22 can adjust the descending speed of the sliding column 19, because the rotation speed of the first servo motor 22 can be changed according to the change of time, and then the impact force of the vibrating ball 191 on the basketball board can be adjusted.

[0024] The rotating unit includes a second servo motor 25; the second servo motor 25 is fixedly connected to the top of the inverted L-shaped fixed plate 13; the output end of the second servo motor 25 is provided with a first rotating shaft 26, and the bottom end of the first rotating shaft 26 passes through the inverted L-shaped fixed plate 13, and the bottom end of the first rotating shaft 26 is divided into a square; the center point of the first rotating shaft 26 coincides with the center point of the first vortex column 14 and the second vortex column 15; a pair of symmetrically distributed fixing plates 27 are fixedly connected to the side wall of the first rotating shaft 26, and a first sliding groove 28 is opened on the opposite surfaces of the pair of fixing plates 27; L-shaped sliding rods 29 are fixedly connected to both sides of the inverted "Z"-shaped column 21, and the L-shaped sliding rods 29 are slidably connected to the first a slide groove 28; a U-shaped plate 291 is fixedly connected to the side wall of the first rotating shaft 26, and the cylinder 18 slides in the U-shaped plate 291; the fixed plate 27 is located above the U-shaped plate 291; during operation, when it is necessary to adjust the impact position, the second servo motor 25 works to drive a pair of fixed plates 27 and the U-shaped plate 291 to rotate around the first rotating shaft 26, thereby driving the cylinder 18 and the inverted "Z"-shaped column 21 to follow the first circular plate 17 and the second circular plate 2 to slide synchronously in the vortex groove 16, and the second servo motor 25 can rotate forward and reverse at any time, and can adjust different speeds, thereby adjusting the impact position of the vibrating ball 191 on the basketball board, simulating the irregular collision of shooting on the basketball board.

[0025] The sliding column 19 includes a first sliding column 3; the bottom end of the hinge rod 24 and the top end of the first sliding column 3 are hinged to each other; the first sliding column 3 slides in the cylinder 18; the bottom end of the first sliding column 3 is fixedly connected to an adjusting column 31; a first circular cavity 32 is provided in the adjusting column 31; a first slide plate 33 is slidably connected in the first circular cavity 32, and a lower pressure column 34 is fixedly connected to the bottom end of the first slide plate 33, the lower pressure column 34 extends out of the adjusting column 31 and is fixedly connected to the vibration ball 191; an adjusting plate 35 is slidably connected to the inner wall of the first circular cavity 32, and an adjusting spring 36 is fixedly connected between the adjusting plate 35 and the first slide plate 33; the adjusting plate 35 is fixed by a single Element limit; when working, because when the basketball collides with the basketball board, there will be point contact first, and because the basketball has elastic deformability, the basketball will subsequently make surface contact with the basketball board due to the action of continuous impact pressure. For this reason, when the present invention is working, the material of the vibration ball 191 is basically the same as the material of the basketball. After the vibration ball 191 collides with the basketball board first, the first slide plate 33 moves up. At this time, the adjustment plate 35 is fixed by the fixing unit, so that the adjustment spring is compressed, thereby simulating the continuous pressure after the basketball collides with the basketball board, and further making the impact mode of the device tend to the real operation, ensuring the authenticity of the impact of the vibration ball 191, and then ensuring the accuracy of the detection.

[0026] The fixing unit includes a first through groove 4; a pair of symmetrically distributed first through grooves 4 are provided in the first circular cavity 32; an annular block 41 is slidably connected to the outer wall of the adjusting column 31, and the inner wall of the annular block 41 and the outer wall of the adjusting plate 35 are fixedly connected by a connecting rod 42, and the connecting rod 42 slides in the first through groove 4; two groups of symmetrically distributed positioning through grooves 43 are provided on the adjusting column 31; a pair of symmetrically distributed limiting grooves 44 are provided on the inner wall of the annular block 41; a positioning block 45 is fixedly connected to the bottom of the limiting groove 44 through a spring; a pull rod 46 is fixedly connected to the side wall of the positioning block 45, and the pull rod 46 extends out of the annular block 41; the cross-section of the positioning block 45 is an inverted right triangle During operation, the locking block 45 is pulled by the pull rod 46, so that the locking block 45 is disengaged from the locking slot 43, allowing the annular block 41 to move up and down, and then the adjusting plate 35 is driven to move up and down by the action of the connecting rod 42. Since the position of the first slide plate 33 is generally located at the bottom of the first circular cavity 32, the spring force of the adjusting spring 36 can be adjusted according to the up and down movement of the adjusting plate 35, and then the continuous impact force of the vibration ball 191 on the basketball board is adjusted. It can be adjusted according to the actual detection situation of the basketball board, thereby increasing the applicable scope of the detection (the present device can also detect the materials of other sports equipment, and is not limited to basketball boards, but the present device is mainly used to detect basketball boards).

[0027] A pair of symmetrically distributed buffer grooves 84 are provided at the top of the support block 11; a buffer spring 85 is fixedly connected to the bottom end of the buffer groove 84, and the top end of the buffer spring 85 is fixedly connected to the bottom end of the placement plate 12; the limiting mechanism includes a first limiting member and a second limiting member; the first limiting member includes a first inverted L-shaped plate 5; a pair of first inverted L-shaped plates 5 symmetrically distributed about the inverted L-shaped fixing plate 13 are fixedly connected to the detection table 1; the first inverted L-shaped plate 5 is slidably connected to a first lowering plate 54 on the vertical surface, and a pair of first limiting plates 55 symmetrically distributed about the horizontal plate of the first inverted L-shaped plate 5 are slidably connected to the top end of the first lowering plate 54; the first lowering plate 54 is slidably connected to a pair of first limiting plates 55 symmetrically distributed about the horizontal plate of the first inverted L-shaped plate 5; the first lowering plate 5 The top end is fixedly connected with a first moving block 51 through a first elastic telescopic rod 56; a first opening slot 52 is formed on the first moving block 51; a first pressing block 53 is fixedly connected to the side wall of the first opening slot 52 through a spring; first sliding posts 57 are rotatably connected to the side walls of both sides of the first moving block 51 near the bottom end; a pair of first limiting plates 55 are formed with first inclined slots 58 on opposite surfaces, and the first inclined slots 58 are inclined downward; the first sliding post 57 slides in the first inclined slot 58; the first pressing block 53 is contracted into the first opening slot 52 through the first contraction unit; the first downward moving plate 54 is moved downward through the first pressing unit; The second limiting member includes a second inverted L-shaped plate 6; two groups of second inverted L-shaped plates 6 symmetrically distributed about the first inverted L-shaped plate 5 are fixedly connected to the detection platform 1; a second lower moving plate 64 is slidably connected to the vertical surface of the second inverted L-shaped plate 6, and a pair of second limiting plates 65 symmetrically distributed about the horizontal plate of the second inverted L-shaped plate 6 are slidably connected to the top of the second lower moving plate 64; the top of the second lower moving plate 64 is fixedly connected to the second moving block 61 through a second elastic telescopic rod 66; a second opening groove 62 is provided on the second moving block 61; a second pressing block 63 is fixedly connected to the side wall of the second opening groove 62 through a spring; the side walls of both sides of the second moving block 61 are rotatably connected to second sliding columns 67 near the bottom end; a pair of second limiting plates 65 are provided on the opposite surfaces of the second limiting plates 65, and the second inclined groove 68 is inclined downwardly arranged; the second sliding column 67 slides in the second inclined groove 68; the second pressing block 63 is retracted into the second opening groove 62 by the second contraction unit; the second lower plate 64 moves downward by the second pressing unit; The first contraction unit includes a first slide-in groove 7; the first slide-in groove 7 is provided at the bottom end of the horizontal plate of the first inverted L-shaped plate 5; the first slide-in groove 7 is used to place the first moving block 51 and the first pressing block 53; the cross section of the first pressing block 53 is an inverted right-angled trapezoid; the second contraction unit includes a second slide-in groove 71; the second slide-in groove 71 is provided at the bottom end of the horizontal plate of the second inverted L-shaped plate 6; the second slide-in groove 71 is used to place the second moving block 61 and the second pressing block 63; the cross section of the second pressing block 63 is an inverted right-angled trapezoid; The first pressing unit includes a first cylinder 72; a first cavity is provided in the testing platform 1; the first cylinder 72 is fixedly connected to the middle of the bottom end of the first cavity; the first pressing rod 73 is fixedly connected to the bottom end of the first downward moving plate 54, and the bottom end of the first pressing rod 73 extends into the first cavity and is fixedly connected to the connecting plate 74; the top end of the piston rod of the first cylinder 72 is fixedly connected to the middle of the connecting rod 42; the second pressing unit includes a second cylinder 75; the second downward moving plate 64 is fixedly connected to the bottom end of the second pressing rod 76, and the bottom end of the second pressing rod 76 extends into the first cavity and is fixedly connected to the I-shaped plate 77; a pair of second cylinders 75 symmetrically distributed about the first cylinder 72 are fixedly connected in the first cavity, and the piston rod of the second cylinder 75 is fixedly connected to the bottom end of the I-shaped plate 77; the I-shaped plate 77 is located above the connecting plate 74; A group of first rolling grooves 8 are provided on the top horizontal planes of the first inverted L-shaped plate 5 and the second inverted L-shaped plate 6; a first rolling ball 81 slides in the first rolling groove 8; a second rolling groove 82 is provided at the bottom end of the first pressing block 53, and a second rolling ball 83 slides in the second rolling groove 82; the cross-sections of the first rolling groove 8 and the second rolling groove 82 are notched circles, and the opening diameters of the first rolling groove 8 and the second rolling groove 82 are respectively smaller than the diameters of the first rolling ball 81 and the second rolling ball 83; During operation, the basketball board is first placed on the placement plate 12, and the placement force of the basketball board is buffered by the buffer spring 85. At the same time, after the placement of the placement plate 12 is completed, the basketball board is attached to the placement plate 12, and the placement plate 12 is attached to the support block 11. The first cylinder 72 is first used to drive the connecting plate 74 to move downward through the piston rod, and the first downward plate 54 is moved downward through the first downward pressure rod 73, thereby driving the first limiting plate 55, the first elastic telescopic rod 56, and the first moving block 51 to move downward, so that the first moving block 51 is first separated from the first sliding groove 7, and the first downward pressure block 53 is partially extended out of the first opening groove 52 under the action of the spring force, and then the first downward pressure rod 73 continues to move downward. At this time, the bottom end of the first downward pressure block 53 will first contact the basketball board, and then the first downward pressure block 53 stops moving at this time, but the first downward pressure rod 73 continues to move downward The first limiting plate 55 is moved to the direction of the placement plate 12 through the action of the first inclined groove 58 and the first sliding column 57, and the basketball board is squeezed until the first limiting plate 55 adjusts the position of the basketball board, at which time the first cylinder 72 stops moving; then the second cylinder 75 is started, and the above action is repeated. Because the second rolling groove 82 and the second rolling ball 83 are provided at the bottom end of the first pressing block 53, rolling friction is caused between the first pressing block 53 and the basketball board, so that the second limiting plate 65 can adjust the operation of the basketball board. Through the operation of the first pressing block 53 and the first limiting plate 55 and the second pressing block 63 and the second limiting plate 65, the center lines of the basketball board and the placement plate 12 are overlapped, and the basketball board can be stably placed on the placement plate 12, simulating the state in which the basketball board is installed on the basketball stand in reality; After the subsequent detection is completed, the first cylinder 72 and the second cylinder 75 can drive the first downward plate 54 and the second downward plate 64 to move upward. Since the cross-section of the first downward pressure block 53 and the second downward pressure block 63 is an inverted right-angled trapezoid, the first movable block 51 and the first downward pressure block 53 can be retracted into the first sliding groove 7. At the same time, the first sliding column 57 is limited by the bottom end of the horizontal plate of the first inverted L-shaped plate 5 at this time, so that the first limiting plate 55 can be restored to its original position, wherein the second movable block 61 and the second downward pressure block 63 are retracted into the second sliding groove 71 to repeat the above action, thereby releasing the limitation of the basketball board and facilitating the removal of the basketball board; at the same time, when the basketball board is initially placed, the first rolling groove 8 and the first rolling ball 81 can be set to facilitate the single-person operation to push the basketball board in.

[0028] Working principle: first place the basketball board (the basketball board at this time has been tested for maximum impact resistance, and then the device will be used to simulate the actual impact test) on the placement board 12. Since the top view of the placement board 12 is a circular shape, and the size of the placement board 12 and the size of the basketball board are proportionally reduced, after the basketball board is placed on the placement board 12, the limiting mechanism fixes the basketball board to simulate the state of the basketball board being installed on the basketball stand, which can better simulate the actual operation. At the same time, after the basketball board is placed, the reciprocating member drives the sliding column 19 to move back and forth up and down, and then the vibration ball 191 is used to impact the basketball board to simulate the actual shooting. The impact force of the basketball board, and the reciprocating member can drive the cylinder 18 to slide in the vortex groove 16, thereby adjusting the impact of the vibration ball 191 on different positions of the basketball board, thereby further simulating the actual shooting operation, and the reciprocating member drives the cylinder 18 to slide and the sliding column 19 to move up and down, and can collide with different positions of the basketball board multiple times using different impact forces, further approaching the actual operation, thereby ensuring the comprehensiveness of the detection and further ensuring the quality of the basketball board; when the first servo motor 22 drives the turntable 23 to rotate, the rotation of the turntable 23 can drive the sliding column 19 to slide up and down in the cylinder 18 through the hinged rod 24, and the speed of the first servo motor 22 can be adjusted The descending speed of the entire sliding column 19 can be changed according to the change of time because the rotation speed of the first servo motor 22 can be changed, thereby adjusting the impact force of the vibration ball 191 on the basketball board; when the impact position needs to be adjusted, the second servo motor 25 works to drive a pair of fixed plates 27 and the U-shaped plate 291 to rotate around the first rotating shaft 26, thereby driving the cylinder 18 and the inverted "Z"-shaped column 21 to follow the first circular plate 17 and the second circular plate 2 to slide synchronously in the vortex groove 16. At the same time, the second servo motor 25 can rotate forward and reverse at any time, and can adjust different rotation speeds, thereby adjusting the impact position of the vibration ball 191 on the basketball board to simulate the impact of shooting on the basketball board. Irregular collision; because when the basketball collides with the basketball board, there will be point contact first, and because the basketball has elastic deformability, the basketball will subsequently make surface contact with the basketball board due to the action of continuous impact pressure. For this reason, when the present invention is working, the material of the vibration ball 191 is basically the same as that of the basketball. After the vibration ball 191 collides with the basketball board first, the first slide plate 33 moves up. At this time, the adjustment plate 35 is fixed by the fixing unit, so that the adjustment spring is compressed, thereby simulating the continuous pressure after the basketball collides with the basketball board, and further making the impact mode of the device tend to real operation, ensuring the authenticity of the impact of the vibration ball 191, and then ensuring the accuracy of the detection.

[0029] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An impact testing device for sports equipment testing, comprising a testing platform (1); a pair of symmetrically distributed support blocks (11) are fixedly connected to the testing platform (1); a placement plate (12) is provided at the top of the pair of support blocks (11), and the placement plate (12) has a circular shape when viewed from above; the characteristics are: The detection platform (1) is provided with a limiting mechanism, and the limiting mechanism limits the position of the basketball board placed on the placement plate (12); an inverted L-shaped fixing plate (13) is fixedly connected to the side wall of the detection platform (1), and a first vortex column (14) is fixedly connected to the vertical surface of the inverted L-shaped fixing plate (13) through a fixed connecting plate; a second vortex column (15) is fixedly connected to the horizontal plate bottom surface of the inverted L-shaped fixing plate (13), and the first vortex column (14) and the second vortex column (15) are of the same size, and the second vortex column (15) is located directly above the first vortex column (14); vortex grooves (16) are provided on the inner and outer arc surfaces of the first vortex column (14) and the second vortex column (15); a first circular plate (17) slides in the vortex groove (16) on the inner and outer arc surfaces of the first vortex column (14), and a cylinder (18) is provided in the first circular plate (17) The cylinder (18) passes through and is rotatably connected in the first circular plate (17); the inner wall of the cylinder (18) is slidably connected with a sliding column (19); a vibrating ball (191) is provided at the bottom end of the sliding column (19); a second circular plate (2) slides in the vortex groove (16) on the inner and outer arc surfaces of the second vortex column (15); the second circular plate (2) is located directly above the first circular plate (17); a reciprocating member is provided at the bottom end of the second circular plate (2); and the reciprocating member drives the sliding column (19) to move up and down, and can drive the sliding column (19) to slide in the vortex groove (16) of the first vortex column (14).

2. The impact testing device for sports equipment detection according to claim 1, characterized in that: The reciprocating member comprises a first servo motor (22); the bottom end of the second circular plate (2) is rotatably connected to an inverted "Z"-shaped column (21), and the bottom end of the inverted "Z"-shaped column (21) is fixedly connected to the first servo motor (22); the output end of the first servo motor (22) is fixedly connected to a turntable (23), a hinged rod (24) is hinged on the side wall of the turntable (23), and the bottom end of the hinged rod (24) is hingedly arranged with a sliding column (19); the cylinder (18) and the inverted "Z"-shaped column (21) slide synchronously through a rotating unit.

3. The impact testing device for sports equipment detection according to claim 2, characterized in that: The rotating unit comprises a second servo motor (25); the second servo motor (25) is fixedly connected to the top of the inverted L-shaped fixed plate (13); a first rotating shaft (26) is provided at the output end of the second servo motor (25), and the bottom end of the first rotating shaft (26) passes through the inverted L-shaped fixed plate (13), and the bottom end of the first rotating shaft (26) is divided into a square shape; the center point of the first rotating shaft (26) coincides with the center point of the first vortex column (14) and the second vortex column (15); the first rotating shaft ( A pair of symmetrically distributed fixing plates (27) are fixedly connected to the side wall of the first rotating shaft (26), and first sliding grooves (28) are provided on the opposite surfaces of the pair of fixing plates (27); L-shaped sliding rods (29) are fixedly connected to both sides of the inverted "Z"-shaped column (21), and the L-shaped sliding rods (29) are slidably connected in the first sliding grooves (28); a U-shaped plate (291) is fixedly connected to the side wall of the first rotating shaft (26), and the cylinder (18) slides in the U-shaped plate (291); the fixing plate (27) is located above the U-shaped plate (291).

4. The impact testing device for sports equipment detection according to claim 3, characterized in that: The sliding column (19) includes a first sliding column (3); the bottom end of the hinge rod (24) and the top end of the first sliding column (3) are hinged to each other; the first sliding column (3) slides in the cylinder (18); the bottom end of the first sliding column (3) is fixedly connected to an adjusting column (31); a first circular cavity (32) is provided in the adjusting column (31); a first slide plate (33) is slidably connected in the first circular cavity (32), and a lower pressure column (34) is fixedly connected to the bottom end of the first slide plate (33), and the lower pressure column (34) extends out of the adjusting column (31) and is fixedly connected to the vibration ball (191); an adjusting plate (35) is slidably connected to the inner wall of the first circular cavity (32), and an adjusting spring (36) is fixedly connected between the adjusting plate (35) and the first slide plate (33); the adjusting plate (35) is limited by a fixing unit.

5. The impact testing device for sports equipment detection according to claim 4, characterized in that: The fixing unit comprises a first through groove (4); a pair of symmetrically distributed first through grooves (4) are provided in the first circular cavity (32); an annular block (41) is slidably connected to the outer wall of the adjusting column (31), and the inner wall of the annular block (41) and the outer wall of the adjusting plate (35) are fixedly connected by a connecting rod (42), and the connecting rod (42) slides in the first through groove (4); two groups of symmetrically distributed locking through grooves (43) are provided on the adjusting column (31); a pair of symmetrically distributed limiting grooves (44) are provided on the inner wall of the annular block (41); a locking block (45) is fixedly connected to the bottom of the limiting groove (44) by a spring; a pull rod (46) is fixedly connected to the side wall of the locking block (45), and the pull rod (46) extends out of the annular block (41); the cross section of the locking block (45) is an inverted right triangle.

6. The impact testing device for sports equipment detection according to claim 1, characterized in that: The top of the support block (11) is provided with a pair of symmetrically distributed buffer grooves (84); the bottom of the buffer groove (84) is fixedly connected to a buffer spring (85), and the top of the buffer spring (85) is fixedly connected to the bottom of the placement plate (12); the limiting mechanism comprises a first limiting member and a second limiting member; the first limiting member comprises a first inverted L-shaped plate (5); a pair of first inverted L-shaped plates (5) symmetrically distributed about the inverted L-shaped fixing plate (13) are fixedly connected to the detection table (1); a first downward moving plate (54) is slidably connected to the vertical surface of the first inverted L-shaped plate (5), and a pair of first limiting plates (55) symmetrically distributed about the horizontal plate of the first inverted L-shaped plate (5) are slidably connected to the top of the first downward moving plate (54); the first downward moving plate (54) is slidably connected to the first limiting plate (55) symmetrically distributed about the horizontal plate of the first inverted L-shaped plate (5); ) is fixedly connected to the top of a first movable block (51) through a first elastic telescopic rod (56); a first opening groove (52) is provided on the first movable block (51); a first pressing block (53) is fixedly connected to the side wall of the first opening groove (52) through a spring; first sliding columns (57) are rotatably connected to the side walls of both sides of the first movable block (51) near the bottom; a pair of first limiting plates (55) are provided with first inclined grooves (58) on the opposite surfaces, and the first inclined grooves (58) are inclined downward; the first sliding column (57) slides in the first inclined groove (58); the first pressing block (53) is contracted into the first opening groove (52) through a first contraction unit; the first downward moving plate (54) is moved downward through the first pressing unit.

7. The impact testing device for sports equipment detection according to claim 6, characterized in that: The second limiting member comprises a second inverted L-shaped plate (6); two groups of second inverted L-shaped plates (6) symmetrically distributed with respect to the first inverted L-shaped plate (5) are fixedly connected to the detection platform (1); a second downward moving plate (64) is slidably connected to the vertical surface of the second inverted L-shaped plate (6); a pair of second limiting plates (65) symmetrically distributed with respect to the horizontal plate of the second inverted L-shaped plate (6) are slidably connected to the top of the second downward moving plate (64); a second moving block (61) is fixedly connected to the top of the second downward moving plate (64) via a second elastic telescopic rod (66); a second opening groove ( 62); a second pressing block (63) is fixedly connected to the side wall of the second opening groove (62) by a spring; the side walls of both sides of the second movable block (61) are rotatably connected to the second sliding column (67) near the bottom end; a pair of second limiting plates (65) are provided with second inclined grooves (68) on the opposite surfaces, and the second inclined grooves (68) are inclined downward; the second sliding column (67) slides in the second inclined grooves (68); the second pressing block (63) is contracted into the second opening groove (62) by the second contraction unit; the second downward moving plate (64) is moved downward by the second pressing unit.

8. The impact testing device for sports equipment detection according to claim 7, characterized in that: The first contraction unit comprises a first sliding groove (7); a first sliding groove (7) is provided at the bottom end of the horizontal plate of the first inverted L-shaped plate (5); the first sliding groove (7) is used to place the first moving block (51) and the first pressing block (53); the cross section of the first pressing block (53) is an inverted right-angled trapezoid; the second contraction unit comprises a second sliding groove (71); a second sliding groove (71) is provided at the bottom end of the horizontal plate of the second inverted L-shaped plate (6); the second sliding groove (71) is used to place the second moving block (61) and the second pressing block (63); the cross section of the second pressing block (63) is an inverted right-angled trapezoid.

9. The impact testing device for sports equipment detection according to claim 8, characterized in that: The first pressing unit comprises a first cylinder (72); a first cavity is provided in the detection platform (1); the first cylinder (72) is fixedly connected to the middle of the bottom end of the first cavity; the first pressing rod (73) is fixedly connected to the bottom end of the first downward moving plate (54), and the bottom end of the first pressing rod (73) extends into the first cavity and is fixedly connected to a connecting plate (74); the top end of the piston rod of the first cylinder (72) is fixedly connected to the middle of the connecting rod (42); the second pressing unit It comprises a second cylinder (75); the bottom end of the second downward moving plate (64) is fixedly connected to a second downward pressing rod (76), and the bottom end of the second downward pressing rod (76) extends into the first cavity and is fixedly connected to an I-shaped plate (77); a pair of second cylinders (75) symmetrically distributed about the first cylinder (72) are fixedly connected in the first cavity, and the piston rod of the second cylinder (75) is fixedly connected to the bottom end of the I-shaped plate (77); the I-shaped plate (77) is located above the connecting plate (74).

10. The impact testing device for sports equipment detection according to claim 9, characterized in that: A group of first rolling grooves (8) are provided on the top horizontal planes of the first inverted L-shaped plate (5) and the second inverted L-shaped plate (6); a first rolling ball (81) slides in the first rolling groove (8); a second rolling groove (82) is provided at the bottom end of the first lower pressing block (53), and a second rolling ball (83) slides in the second rolling groove (82); the cross-sections of the first rolling groove (8) and the second rolling groove (82) are notched circles, and the opening diameters of the first rolling groove (8) and the second rolling groove (82) are respectively smaller than the diameters of the first rolling ball (81) and the second rolling ball (83).

Images