Testing device for swing angle limiting device of sports activity equipment

Abstract

The invention relates to the technical field of sports activity equipment, in particular to a sports activity equipment swing angle limiting device test device which comprises a detection table, an annular plate is coaxially installed on the upper surface of the detection table, a plurality of damping structures are installed on the circumferential side face of the annular plate in a penetrating mode, and a material supporting disc coaxially and rotationally penetrates through the upper surface of the detection table. An inner rod is fixed to the outer ring face of the material supporting disc, the other end of the inner rod is elastically and slidably sleeved with an isosceles angle block, a lower disc fixing structure is installed in the material supporting disc, and a round rod coaxially and slidably penetrates through the upper surface of the material supporting disc. When the isosceles angle block is separated from the contacted damping plate, the two rotating structures of the limiting device reach the maximum collision resistance, the threaded friction wheel is driven to rotate relative to the reciprocating screw rod, and the position of the damping plate extending out of the horizontal box plate is controlled, so that when the isosceles angle block is separated from the contacted damping plate, the vibration of the damping plate is continuously changed. The maximum collision resistance borne by the two rotating structures of the limiting device enables the torsion borne by the limiting device during detection to be continuously changed.

Description

Technical Field

[0001] The present invention relates to the technical field of sports equipment, and in particular to a test device for the swing angle limit device of sports equipment. Background Art

[0002] Sports equipment is the general term for various instruments, equipment and supplies used in competitive sports competitions and fitness exercises. Sports equipment and sports are interdependent and promote each other. The popularization of sports and the diversification of sports events have developed the types, specifications, etc. of sports equipment. In order to ensure the safety of personnel activities, a limit device composed of two rotating structures that can rotate relative to each other by a certain angle is set in the equipment to limit the rotation angle of the equipment, prevent the angle used by personnel from being too large, and improve the safety of using sports equipment. After the limit equipment is produced, it is necessary to test and detect its limit firmness to obtain the durability of the limit equipment.

[0003] Chinese Patent CN118518334A discloses a test device for the swing angle limit device of sports equipment. Its structure includes a main body, a control panel, a fixing device, a limit device, and an experimental device. A control panel is provided at the top of the main body. The fixing device is located on the left side of the top of the main body. The limit device is clamped on the end face of the fixing device. The experimental device is arranged on the top end face of the fixing device. The invention uses a telescopic rod to contract or expand and adjust the length inside the movable groove, and then fixes the telescopic rod by tightening the locking bolt, so that the length of the rotating rod can be freely adjusted, changing the swing amplitude of the sliding plate driving the connecting structure, and adjusting different swing amplitudes according to the limit devices of different sports equipment, which can accurately match the experimental purpose of the limit device. The above related technologies have the following defects: In the actual use of the limit equipment, the impact force received by the limit equipment changes differently. In the prior art, when detecting the limit structure, a specific torsional force is used to make the two structures of the limit device rotate relative to each other to generate a collision to test the durability, so the data obtained by the test does not conform to the actual use state. Therefore, a test device for the swing angle limit device of sports equipment is proposed. Summary of the Invention

[0004] In order to conform to the change characteristics of the impact force received by the limit device during the test of the limit device, the present invention provides a test device for the swing angle limit device of sports equipment.

[0005] A test device for the swing angle limit device of a sports activity equipment provided by the present invention adopts the following technical solutions: It includes a detection table, on the upper surface of which a ring plate is coaxially installed. A plurality of damping structures are installed through the circumferential side surface of the ring plate. A supporting plate is coaxially and rotatably penetrated through the upper surface of the detection table. An inner rod is fixed on the outer ring surface of the supporting plate. The other end of the inner rod is elastically and slidably sleeved with an isosceles angle block. A lower plate fixing structure is installed inside the supporting plate. A round rod is coaxially and slidably penetrated through the upper surface of the supporting plate. An upper plate fixing structure is installed inside the round rod. One end of the round rod located below the supporting plate is slidably sleeved with an upper gear. The outer surface of the upper gear is rotatably sleeved with a fixing frame, and the fixing frame is fixed to the bottom surface of the detection table.

[0006] The damping structure includes a horizontal box plate and a vertical box plate. One end of the horizontal box plate far from the axis of the ring plate is connected and installed with the bottom surface of the vertical box plate. The other end of the horizontal box plate is coaxially and slidably inserted with a damping plate. One end of the damping plate located inside the horizontal box plate is elastically connected with the horizontal box plate. The ring plate is fixedly sleeved on the outer surface of the horizontal box plate. An air pressure plate is slidably inserted inside the vertical box plate. A reciprocating lead screw is fixed on the upper surface of the air pressure plate. The upper end of the reciprocating lead screw slidably penetrates the inner top wall of the vertical box plate. A threaded friction wheel is rotatably inserted on the upper surface of the vertical box plate. The threaded friction wheel is threadedly sleeved on the outer surface of the reciprocating lead screw.

[0007] A sleeve ring is rotatably sleeved on the outer ring surface of the detection table. A power rotation structure is installed on the bottom surface of the detection table. The power rotation structure is connected with the sleeve ring and the upper gear. An arc friction structure is installed on the upper surface of the sleeve ring.

[0008] Optionally, the lower plate fixing structure includes a worm gear ring and a power worm. The outer ring surface of the worm gear ring meshes with the power worm. Both ends of the power worm are rotatably connected with the supporting plate. The worm gear ring is rotatably sleeved on the upper end of the supporting plate. A plurality of small gears are meshed on the inner ring surface of the worm gear ring. The lower ends of the small gears are rotatably inserted on the upper surface of the supporting plate. A plurality of through grooves equal in number to the small gears are opened on the circumferential side surface of the supporting plate. A lower clamping plate is arranged inside the through groove. The lower clamping plate is fixedly sleeved on the outer surface of the small gear.

[0009] Optionally, the upper plate fixing structure includes an inner rib rod and a power telescopic rod. The lower end of the inner rib rod is rotatably sleeved with a flat plate. The other end of the flat plate is fixed to the power telescopic rod. The upper end of the power telescopic rod is fixed to the bottom surface of the detection table. A round rod is slidably sleeved on the outer surface of the inner rib rod. Two rib rings are slidably inserted into the round rod. The inner rib rod is located on the inner ring side of the two rib rings. The rib ring located above the two rib rings is fixedly sleeved on the upper end of the inner rib rod. The other rib ring is slidably sleeved on the outer surface of the inner rib rod. The two rib rings are elastically connected. A support block is slidably inserted on the outer surface of the round rod and between the two rib rings. Both ends of the support block are rotatably connected with articulated push rods. The other end of the articulated push rod is rotatably connected with the adjacent rib ring. A central gear is rotatably installed at the middle position between the two rib rings on the inner wall of the round rod. Synchronous toothed plates are fixed on the mutually approaching surfaces of the two rib rings. The central gear meshes with the mutually approaching surfaces of the two synchronous toothed plates respectively. A plurality of one-way pressing plates are elastically rotatably connected to the upper end of the round rod in one direction.

[0010] Optionally, the power rotation structure includes a power motor and a driving gear. The driving gear is fixed to the output end of the power motor. The power motor is fixed to the bottom surface of the detection table. An internal toothed ring is coaxially fixed to the lower end of the collar. The driving gear meshes with the inner ring surface of the internal toothed ring. The upper gear meshes with the driving gear.

[0011] Optionally, the arc friction structure includes two arc friction plates and an arc power reciprocating telescopic rod. The two ends of the arc power reciprocating telescopic rod are respectively fixed to the two arc friction plates. One of the two arc friction plates is fixed to the collar. The arc friction plate is coaxially arranged with the collar.

[0012] Optionally, the shape of the lower clamping plate is arc-shaped. A plurality of lower clamping plates are evenly distributed in a circumferential array around the axis of the material supporting plate.

[0013] Optionally, the plurality of one-way pressing plates and the plurality of support blocks are distributed alternately. A matching end groove is formed at the connection between the round rod and each one-way pressing plate. The one-way pressing plate is located above the end groove.

[0014] Optionally, the damping plate is coaxially arranged with the connected horizontal box plate. The axis of the damping plate is vertically intersected with the central axis of the detection table. A plurality of horizontal box plates are evenly distributed in a circumferential array around the axis of the ring plate.

[0015] Optionally, the length of the isosceles angle block relative to the axis of the material supporting plate is greater than the length of the damping plate extending out of the horizontal box plate. The minimum distance between the horizontal box plate and the axis of the material supporting plate is greater than the maximum distance between the isosceles angle block and the axis of the material supporting plate.

[0016] In summary, the present invention includes the following beneficial technical effects: 1. The present invention is provided with components such as a reciprocating lead screw, a pneumatic plate, a damping plate, an isosceles angle block, and an inner rod. After fixing the two rotating components of the limiting device respectively, when the rotating component of the upper limiting device rotates and contacts the rotating component of the lower part, it drives the rotating component of the lower part and the material supporting plate to rotate synchronously. The material supporting plate drives the isosceles angle block to apply a thrust to the damping plate through the inner rod. The inclined surface of the isosceles angle block gradually dislocates from the damping plate by sliding relative to the damping plate. When the isosceles angle block disengages from the contacted damping plate, the two rotating structures of the limiting device reach the maximum collision resistance. When the sleeve rotates and drives the arc friction structure to move in contact with the threaded friction wheel, it drives the threaded friction wheel to rotate relative to the reciprocating lead screw, changes the position of the pneumatic plate relative to the vertical box plate, and controls the position of the damping plate extending out of the horizontal box plate, so that when the isosceles angle block disengages from the contacted damping plate, the maximum collision resistance received by the two rotating structures of the limiting device changes. When the arc friction structure rotates following the sleeve, it continuously changes the length of different damping plates extending out of the horizontal box plate in sequence, thereby continuously changing the maximum collision resistance received by the two rotating structures of the limiting device when the isosceles angle block disengages from the contacted damping plate synchronously and continuously, so that the torque received during the detection of the limiting device changes continuously.

[0017] 2. The present invention is provided with an arc friction plate and an arc power reciprocating telescopic rod. The arc power telescopic rod continuously changes the arc angle between the two ends of the two arc friction plates through power expansion and contraction. Then, when the arc friction plate rotates following the sleeve, the two arc friction plates drive the contacted threaded friction wheels to rotate at different angles, increasing the change frequency range of the length of the damping plate extending out of the horizontal box plate when the material supporting plate rotates.

[0018] 3. The present invention is provided with components such as a one-way pressing plate, a hinged push rod, a supporting block, a central gear, and a synchronous toothed plate. When placed in the rotating component, the rotating component pushes the one-way pressing plate to rotate downward, so that the rotating component can move to the lower side of the one-way pressing plate. When the two rotating components are sleeved under the one-way pressing plate outside the round rod, the power telescopic rod pulls the inner rib rod downward through the flat plate. The inner rib rod first drives the round rod to move downward synchronously through elastic connection. Then, after the one-way pressing plate contacts the upper end of the upper rotating component, the round rod stops moving downward. Then, when the inner rib rod continues to move downward, the inner rib rod drives the upper rib ring to move downward relative to the central gear. Then, the synchronous toothed plate drives the lower rib ring to move upward through meshing with the central gear. When the two rib rings approach each other, they drive the hinged push rod to rotate, pushing the supporting block away from the axis of the round rod to tightly support the inner wall of the upper rotating component, so that the upper rotating component rotates synchronously with the round rod. During the rotation of the worm gear ring, it drives the lower clamping plate to rotate through meshing with the small gear to clamp the lower rotating component, so that the lower rotating component rotates synchronously with the material supporting plate, and the rotating component structure of the limiting device with different heights and inner diameters can be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure in the embodiment of the present invention; Figure 2 It is a schematic top view structure diagram in the embodiment of the present invention; Figure 3 It is a schematic diagram of the connection structure between the collar and the detection table in the embodiment of the present invention; Figure 4 It is a schematic diagram of the connection structure between the air pressure plate and the vertical box plate in the embodiment of the present invention; Figure 5 It is a schematic diagram of the connection structure between the round rod and the material supporting plate in the embodiment of the present invention; Figure 6 It is a front view schematic diagram of a part of the structure in the embodiment of the present invention; Figure 7 It is a schematic diagram of the connection structure between the inner rib rod and the round rod in the embodiment of the present invention; Figure 8 It is a schematic diagram of the connection structure between the rib ring and the round rod in the embodiment of the present invention; Figure 9 It is a schematic diagram of the connection structure between the central gear and the synchronous toothed plate in the embodiment of the present invention.

[0020] Reference numerals: 1, detection table; 2, ring plate; 3, material supporting plate; 4, inner rod; 5, arc friction structure; 51, arc friction plate; 52, arc power reciprocating telescopic rod; 6, damping structure; 61, horizontal box plate; 62, vertical box plate; 63, damping plate; 64, air pressure plate; 65, reciprocating lead screw; 66, threaded friction wheel; 7, isosceles angle block; 8, round rod; 9, lower plate fixing structure; 91, worm gear ring; 92, power worm; 93, small gear; 94, through groove; 95, lower clamping plate; 10, upper plate fixing structure; 101, inner rib rod; 102, power telescopic rod; 103, flat plate; 104, rib ring; 105, support block; 106, articulated push rod; 107, central gear; 108, synchronous toothed plate; 109, one-way pressing plate; 110, end groove; 11, upper gear; 12, fixing frame; 13, collar; 14, power rotation structure; 141, power motor; 142, driving gear; 143, internal gear ring. Detailed implementation manners

[0021] The following further elaborates on the present invention in conjunction with the attached Figures 1-9 for a more detailed description of the present invention.

[0022] The embodiment of the present invention discloses a test device for the swing angle limiting device of sports activity equipment. As Figures 1-9 shown, it includes a detection table 1, a ring plate 2 is coaxially installed on the upper surface of the detection table 1, a plurality of damping structures 6 are installed through the circumferential side surface of the ring plate 2, and a material supporting plate 3 is coaxially rotatably penetrated through the upper surface of the detection table 1.

[0023] An inner rod 4 is fixed to the outer ring surface of the material supporting disk 3. The other end of the inner rod 4 is elastically and slidably sleeved with an isosceles angle block 7. A lower disk fixing structure 9 is installed inside the material supporting disk 3. The lower disk fixing structure 9 includes a worm gear ring 91 and a power worm 92. The outer ring surface of the worm gear ring 91 meshes with the power worm 92. Both ends of the power worm 92 are rotatably connected to the material supporting disk 3. The worm gear ring 91 is rotatably sleeved on the upper end of the material supporting disk 3. A plurality of small gears 93 are meshed with the inner ring surface of the worm gear ring 91. The lower ends of the small gears 93 are rotatably inserted into the upper surface of the material supporting disk 3. Through grooves 94 with the same number as the small gears 93 are formed in the circumferential side surface of the material supporting disk 3. Lower clamping plates 95 are arranged inside the through grooves 94. The lower clamping plates 95 are fixedly sleeved on the outer surfaces of the small gears 93. The shape of the lower clamping plates 95 is arc-shaped. The plurality of lower clamping plates 95 are evenly distributed in a circumferential array around the axis of the material supporting disk 3. When the power worm 92 rotates and meshes with the worm gear ring 91, it can mesh with the small gears 93. When the small gears 93 rotate, the corresponding lower clamping plates 95 are driven to rotate to fix the rotating component below to the material supporting disk 3.

[0024] A round rod 8 coaxially and slidably penetrates through the upper surface of the material supporting plate 3. An upper plate fixing structure 10 is installed inside the round rod 8. The upper plate fixing structure 10 includes an inner rib rod 101 and a power telescopic rod 102. The lower end of the inner rib rod 101 is rotatably sleeved with a flat plate 103. The other end of the flat plate 103 is fixed to the power telescopic rod 102. The upper end of the power telescopic rod 102 is fixed to the bottom surface of the detection table 1. The power telescopic rod 102 can drive the inner rib rod 101 to move up and down through power telescoping. The round rod 8 is slidably sleeved on the outer surface of the inner rib rod 101. Two rib rings 104 are slidably inserted into the round rod 8. The inner rib rod 101 is located on the inner ring side of the two rib rings 104. The rib ring 104 located above the two rib rings 104 is fixedly sleeved on the upper end of the inner rib rod 101. The other rib ring 104 is slidably sleeved on the outer surface of the inner rib rod 101. The two rib rings 104 are elastically connected. The two elastically connected rib rings 104 tend to move away from each other. A support block 105 is slidably inserted on the outer surface of the round rod 8 and between the two rib rings 104. Both ends of the support block 105 are rotatably connected with articulated push rods 106. The other end of the articulated push rod 106 is rotatably connected with the adjacent rib ring 104. When the two rib rings 104 approach each other, it can drive the articulated push rod 106 to rotate and push the support block 105 away from the axis of the round rod 8. A central gear 107 is rotatably installed at the middle position between the two rib rings 104 on the inner wall of the round rod 8. A synchronous toothed plate 108 is fixed on each of the two mutually approaching surfaces of the two rib rings 104. The central gear 107 meshes with the mutually approaching surfaces of the two synchronous toothed plates 108 respectively. When the inner rib rod 101 moves downward relative to the round rod 8, it drives the upper rib ring 104 to move downward relative to the round rod 8. The upper synchronous toothed plate 108 drives the other synchronous toothed plate 108 to move synchronously and reversely through meshing with the central gear 107, pulling the lower rib ring 104 to move upward synchronously. When the two rib rings 104 approach each other synchronously, it drives the upper and lower articulated push rods 106 to rotate synchronously, so that the support block 105 stably moves away from the axis of the round rod 8 to stably clamp the upper rotating component. The upper end of the round rod 8 is unidirectionally elastically rotatably connected with a plurality of one-way pressing plates 109. The plurality of one-way pressing plates 109 and the plurality of support blocks 105 are alternately distributed. A mating end groove 110 is provided at the connection between the round rod 8 and each one-way pressing plate 109. The one-way pressing plate 109 is located at the upper end of the end groove 110, so that the one-way pressing plate 109 can rotate downward unidirectionally. When the rotating component is placed downward, the rotating component pushes the one-way pressing plate 109 downward. When the inner rib rod 101 initially moves downward, it pulls the round rod 8 to move downward synchronously through elastic connection. When the one-way pressing plate 109 contacts the upper rotating component, when the inner rib rod 101 continues to move downward, the round rod 8 stops moving downward under the block of the one-way pressing plate 109, and the inner rib rod 101 moves downward relative to the round rod 8.

[0025] One end of the round rod 8 located below the material supporting plate 3 is slidably sleeved with an upper gear 11. A fixing frame 12 is rotatably sleeved on the outer surface of the upper gear 11. The fixing frame 12 is fixed to the bottom surface of the detection table 1.

[0026] The damping structure 6 includes a horizontal box plate 61 and a vertical box plate 62. One end of the horizontal box plate 61 far from the axis of the ring plate 2 is connected and installed with the bottom surface of the vertical box plate 62. The other end of the horizontal box plate 61 is coaxially and slidably inserted with a damping plate 63. One end of the damping plate 63 located inside the horizontal box plate 61 is elastically connected to the horizontal box plate 61. The damping plate 63 is coaxially arranged with the connected horizontal box plate 61. The axis of the damping plate 63 is perpendicular to and intersects the central axis of the inspection table 1. A plurality of horizontal box plates 61 are evenly distributed in a circumferential array around the axis of the ring plate 2. When the material supporting plate 3 drives the isosceles angle block 7 through the inner rod 4 to apply a thrust to the damping plate 63, the inclined surface of the isosceles angle block 7 gradually dislocates from the damping plate 63 by sliding relative to the damping plate 63. When the isosceles angle block 7 disengages from the contacted damping plate 63, the two rotating structures of the limiting device reach the maximum collision resistance. The ring plate 2 is fixedly sleeved on the outer surface of the horizontal box plate 61. A pneumatic plate 64 is slidably inserted inside the vertical box plate 62. A reciprocating lead screw 65 is fixed on the upper surface of the pneumatic plate 64. The upper end of the reciprocating lead screw 65 slidably penetrates the inner top wall of the vertical box plate 62. A threaded friction wheel 66 is rotatably inserted on the upper surface of the vertical box plate 62. The threaded friction wheel 66 is threadedly sleeved on the outer surface of the reciprocating lead screw 65. The axial length of the isosceles angle block 7 relative to the axis of the material supporting plate 3 is greater than the length of the damping plate 63 extending out of the horizontal box plate 61. The minimum distance between the axis of the horizontal box plate 61 and the axis of the material supporting plate 3 is greater than the maximum distance between the isosceles angle block 7 and the axis of the material supporting plate 3. When the threaded friction wheel 66 rotates, it can reciprocally drive the pneumatic plate 64 to move up and down inside the vertical box plate 62 by meshing with the reciprocating lead screw 65, synchronously changing the air pressure pushed into the horizontal box plate 61, continuously changing the length of the damping plate 63 extending out of the horizontal box plate 61, and changing the maximum collision resistance received by the two rotating structures of the limiting device when the isosceles angle block 7 disengages from the contacted damping plate 63.

[0027] A collar 13 is rotatably sleeved on the outer ring surface of the inspection table 1. A power rotating structure 14 is installed on the bottom surface of the inspection table 1. The power rotating structure 14 is connected to the collar 13 and the upper gear 11. The power rotating structure 14 includes a power motor 141 and a driving gear 142. The driving gear 142 is fixed to the output end of the power motor 141. The power motor 141 is fixed to the bottom surface of the inspection table 1. An internal gear ring 143 is coaxially fixed to the lower end of the collar 13. The driving gear 142 meshes with the inner ring surface of the internal gear ring 143. The upper gear 11 meshes with the driving gear 142. When the driving gear 142 rotates, it can drive the collar 13 and the round rod 8 to rotate respectively by meshing with the internal gear ring 143 and the driving gear 142.

[0028] ​An arc-shaped friction structure 5 is installed on the upper surface of the collar 13. The arc-shaped friction structure 5 includes two arc-shaped friction plates 51 and an arc-shaped power reciprocating telescopic rod 52. The two ends of the arc-shaped power reciprocating telescopic rod 52 are respectively fixed to the two arc-shaped friction plates 51. One of the two arc-shaped friction plates 51 is fixed to the collar 13. The arc-shaped friction plate 51 is coaxially arranged with the collar 13. The arc-shaped power telescopic rod 102 continuously changes the arc angle between the two ends of the two arc-shaped friction plates 51 through power telescoping. Then, when the arc-shaped friction plate 51 rotates following the collar 13, the two arc-shaped friction plates 51 drive the contacted thread friction wheel 66 to rotate by different angles, increasing the change frequency range of the length of the damping plate 63 extending out of the horizontal box plate 61 when the material supporting plate 3 rotates, and further increasing the change frequency of the maximum collision resistance received by the two rotating structures of the limiting device.

[0029] The working principle is as follows: The two rotating components of the angle limiting device are sleeved on the surface of the round rod 8. The lower rotating component is located inside the material supporting plate 3. After the two rotating components are respectively fixed to the round rod 8 and the material supporting plate 3, the power motor 141 drives the round rod 8 and the collar 13 to rotate respectively through the driving gear 142 meshing with the upper gear 11 and the internal gear ring 143. When the upper rotating component of the limiting device rotates and contacts the lower rotating component, it drives the lower rotating component and the material supporting plate 3 to rotate synchronously. The material supporting plate 3 drives the isosceles angle block 7 to apply a thrust to the damping plate 63 through the inner rod 4. The inclined surface of the isosceles angle block 7 gradually dislocates from the damping plate 63 by sliding relative to the damping plate 63. When the isosceles angle block 7 disengages from the contacted damping plate 63, the two rotating structures of the limiting device reach the maximum collision resistance. When the collar 13 rotates and drives the arc-shaped friction structure 5 to contact and move with the thread friction wheel 66, it drives the thread friction wheel 66 to rotate relative to the reciprocating lead screw 65. The reciprocating lead screw 65 drives the air pressure plate 64 to reciprocate up and down through meshing with the thread friction wheel 66, changing the position of the air pressure plate 64 relative to the vertical box plate 62, controlling the gas pushed into the horizontal box plate 61, and further controlling the length of the damping plate 63 extending out of the horizontal box plate 61, so that when the isosceles angle block 7 disengages from the contacted damping plate 63, the maximum collision resistance received by the two rotating structures of the limiting device changes. When the arc-shaped friction structure 5 rotates following the collar 13, it continuously changes the lengths of different damping plates 63 extending out of the horizontal box plate 61 in sequence, thereby continuously changing the maximum collision resistance received by the two rotating structures of the limiting device when the isosceles angle block 7 disengages from the contacted damping plate 63.

[0030] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A testing device for a swing angle limit device of sports equipment, comprising a testing platform (1), characterized in that: The upper surface of the testing platform (1) is coaxially mounted with an annular plate (2), and a plurality of damping structures (6) are installed through the circumferential side surface of the annular plate (2); a support plate (3) is coaxially and rotatably mounted on the upper surface of the testing platform (1); an inner rod (4) is fixed to the outer annular surface of the support plate (3); an isosceles angle block (7) is elastically and slidably sleeved on the other end of the inner rod (4); a lower plate fixing structure (9) is installed inside the support plate (3); a round rod (8) is coaxially and slidably mounted on the upper surface of the support plate (3); an upper plate fixing structure (10) is installed inside the round rod (8); an upper gear (11) is slidably sleeved on one end of the round rod (8) located below the support plate (3); a fixing frame (12) is rotatably sleeved on the outer surface of the upper gear (11); and the fixing frame (12) is fixed to the bottom surface of the testing platform (1); The damping structure (6) comprises a horizontal box plate (61) and a vertical box plate (62); one end of the horizontal box plate (61) away from the axis of the ring plate (2) is connected to the bottom surface of the vertical box plate (62) and installed; the other end of the horizontal box plate (61) is coaxially slidably plugged with a damping plate (63); one end of the damping plate (63) located inside the horizontal box plate (61) is elastically connected to the horizontal box plate (61); the ring plate (2) is fixedly sleeved on the outer surface of the horizontal box plate (61); an air pressure plate (64) is slidably plugged inside the vertical box plate (62); a reciprocating screw rod (65) is fixed on the upper surface of the air pressure plate (64); the upper end of the reciprocating screw rod (65) slides through the inner top wall of the vertical box plate (62); a threaded friction wheel (66) is rotatably plugged on the upper surface of the vertical box plate (62); the threaded friction wheel (66) is threadedly sleeved on the outer surface of the reciprocating screw rod (65); The outer ring surface of the detection platform (1) is rotatably sleeved with a collar (13), the bottom surface of the detection platform (1) is equipped with a power rotation structure (14), the power rotation structure (14) is connected to the collar (13) and the upper gear (11), and the upper surface of the collar (13) is equipped with an arc-shaped friction structure (5).

2. A sports equipment swing angle limit device test device according to claim 1, characterized in that: The lower plate fixing structure (9) comprises a worm wheel ring (91) and a power worm (92); the outer ring surface of the worm wheel ring (91) meshes with the power worm (92); both ends of the power worm (92) are rotatably connected to the supporting plate (3); the worm wheel ring (91) is rotatably sleeved on the upper end of the supporting plate (3); the inner ring surface of the worm wheel ring (91) meshes with a plurality of pinions (93); the lower ends of the pinions (93) are rotatably inserted into the upper surface of the supporting plate (3); the circumferential side surface of the supporting plate (3) is provided with through grooves (94) of the same number as the pinions (93); a lower clamping plate (95) is provided inside the through grooves (94); and the lower clamping plate (95) is fixedly sleeved on the outer surface of the pinions (93).

3. A sports equipment swing angle limit device test device according to claim 1, characterized in that: The upper plate fixing structure (10) comprises an inner prism (101) and a power telescopic rod (102); a plate (103) is rotatably sleeved on the lower end of the inner prism (101); the other end of the plate (103) is fixed to the power telescopic rod (102); the upper end of the power telescopic rod (102) is fixed to the bottom surface of the detection platform (1); a round rod (8) is slidably sleeved on the outer surface of the inner prism (101); two prism rings (104) are slidably inserted inside the round rod (8); the inner prism (101) is located on the inner ring side of the two prism rings (104); the prism ring (104) located on the upper side of the two prism rings (104) is fixedly sleeved on the upper end of the inner prism (101); the other prism ring (104) is slidably sleeved on the outer surface of the inner prism (101); The outer surface of the round rod (8) is elastically connected to the two prism rings (104); a support block (105) is slidably inserted between the two prism rings (104); both ends of the support block (105) are rotatably connected to hinged push rods (106); the other end of the hinged push rod (106) is rotatably connected to the adjacent prism ring (104); a central gear (107) is rotatably installed on the inner wall of the round rod (8) and located in the middle position between the two prism rings (104); synchronous tooth plates (108) are fixed on the sides of the two prism rings (104) close to each other; the central gear (107) is respectively meshed with the sides of the two synchronous tooth plates (108) close to each other; and a plurality of one-way pressure plates (109) are unidirectionally elastically rotatably connected to the upper end of the round rod (8).

4. A sports equipment swing angle limit device test device according to claim 1, characterized in that: The power rotating structure (14) comprises a power motor (141) and a driving gear (142); the driving gear (142) is fixed to the output end of the power motor (141); the power motor (141) is fixed to the bottom surface of the detection platform (1); an inner gear ring (143) is coaxially fixed to the lower end of the collar (13); the driving gear (142) meshes with the inner ring surface of the inner gear ring (143); and the upper gear (11) meshes with the driving gear (142).

5. A sports equipment swing angle limit device test device according to claim 1, characterized in that: The arc-shaped friction structure (5) comprises two arc-shaped friction plates (51) and an arc-shaped power reciprocating telescopic rod (52), the two ends of the arc-shaped power reciprocating telescopic rod (52) are respectively fixed to the two arc-shaped friction plates (51), one of the two arc-shaped friction plates (51) is fixed to a collar (13), and the arc-shaped friction plate (51) and the collar (13) are coaxially arranged.

6. A sports equipment swing angle limit device test device according to claim 2, characterized in that: The lower clamping plate (95) is arc-shaped, and a plurality of lower clamping plates (95) are evenly distributed in an array around the axis of the support tray (3).

7. A sports equipment swing angle limit device test device according to claim 3, characterized in that: The plurality of one-way pressing plates (109) and the plurality of supporting blocks (105) are arranged in an interlaced manner, and a matching end groove (110) is provided at the connection between the round rod (8) and each one-way pressing plate (109), and the one-way pressing plate (109) is located at the upper end of the end groove (110).

8. A sports equipment swing angle limit device test device according to claim 1, characterized in that: The damping plate (63) is coaxially arranged with the connected horizontal box plate (61), the axis of the damping plate (63) intersects perpendicularly with the central axis of the detection platform (1), and the plurality of horizontal box plates (61) are evenly distributed in a circular array around the axis of the ring plate (2).

9. A sports equipment swing angle limit device test device according to claim 1, characterized in that: The axial length of the isosceles angle block (7) relative to the support tray (3) is greater than the length of the damping plate (63) extending from the horizontal box plate (61), and the minimum distance between the horizontal box plate (61) and the axial line of the support tray (3) is greater than the maximum distance between the isosceles angle block (7) and the axial line of the support tray (3).

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