A parallel bar sports equipment strength detection device

Abstract

This invention relates to the field of sports equipment testing technology, and particularly to a strength testing device for parallel bars. The device includes a worktable, four connecting rods, and two bars, and further comprises: a mounting groove; a first hydraulic actuator, the output end of which is fixedly connected to a first force-applying rod, the upper end of which is fitted with a first clamping mechanism; a hollow slot, inside which a sliding platform is slidably connected, with second hydraulic actuators fixedly mounted on both sides of the upper surface of the sliding platform, the output end of which is fixedly connected to a second force-applying rod, the upper end of which is fitted with a second clamping mechanism; and a driving mechanism. This application can simulate the actual use of the parallel bars, and through the use of pressure and vision sensors, the state of the bars and connecting rods can be detected and recorded in real time, thereby enabling analysis of the overall strength of the parallel bars.

Description

Technical Field

[0001] The invention relates to the technical field of sports equipment detection, in particular to a parallel bar sports equipment strength detection device. Background Art

[0002] Parallel bars is one of the men's competitive gymnastics events. It consists of two parallel bars made of wood, plastic or synthetic metal supported by a metal frame. A typical set of parallel bars movements includes transitions between the support position, inverted position and hanging arm position. Athletes have to perform swings, crossovers, flexion and extension, arc swings, loops, somersaults and static movements in these positions. Finally, the whole set of movements requires standing on one side of the bar.

[0003] Since the parallel bars need to bear pressure continuously during use, the strength of the parallel bars needs to be tested during the production process of the parallel bars to make them meet the use requirements. Most of the existing parallel bar equipment strength testing devices separate the parallel bars and perform separate tests. Although this can achieve a certain detection effect, this detection method is obviously not in line with the use scenario of the parallel bars in real life, that is, the parallel bars are used by people at the same time. Therefore, it is necessary to simulate the force conditions of the parallel bars when in use to fully test the parallel bars. At the same time, the coordination between the two horizontal bars needs to be considered when testing the double bars. Summary of the invention

[0004] The purpose of the present invention is to solve the disadvantage of poor detection effect in the prior art and to propose a parallel bar sports equipment strength detection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A parallel bar sports equipment strength testing device comprises a workbench, four connecting rods and two bar bodies, wherein the lower end of any bar body is fixedly connected to the two connecting rods, and further comprises:

[0007] Mounting slots, wherein four mounting slots are symmetrically arranged, and two of them are formed into a group and are respectively opened on both sides of the upper surface of the workbench;

[0008] A first hydraulic press, wherein two first hydraulic presses are symmetrically arranged, and the two first hydraulic presses are respectively fixedly installed on both sides of the upper surface of the workbench, and the output end of the first hydraulic press is fixedly connected to a first force application rod, and the upper end of the first force application rod is installed with a first clamping mechanism;

[0009] An empty slot, the empty slot is opened at the middle position of the upper end surface of the workbench, a sliding table is slidably connected inside the empty slot, a second hydraulic machine is fixedly installed on both sides of the upper end surface of the sliding table, the output end of the second hydraulic machine is located directly below the corresponding lever body, a second force application rod is fixedly connected to the output end of the second hydraulic machine, and a second clamping mechanism is installed on the upper end of the second force application rod;

[0010] The driving mechanism is arranged on the left side of the workbench and is used to drive the sliding table to move back and forth left and right inside the empty slot.

[0011] Preferably, an adjusting clamping plate for clamping and fixing the lower end of the connecting rod is fixedly installed on the inner wall of the installation groove.

[0012] Preferably, the first clamping mechanism comprises a pressure plate fixedly connected to the first force-applying rod, the pressure plate is vertically arranged to the lever body, and engaging grooves are formed on both sides of the lower end of the pressure plate.

[0013] Preferably, a rubber pad is glued inside the engaging groove, and the rubber pad is used to increase the friction force when the engaging groove contacts the lever body.

[0014] Preferably, the second clamping mechanism comprises a buckling ring fixedly connected to the second force applying rod, and an opening and closing buckle for controlling the opening and closing of the buckling ring is installed on the buckling ring.

[0015] Preferably, pressure sensors are glued to the inner walls on both the upper and lower sides of the buckle ring, and the pressure sensors are used to detect the pressure applied to the lever body.

[0016] Preferably, a display is fixedly mounted at a middle position of the upper surface of the sliding platform, and the display is connected to the plurality of pressure sensors respectively through data cables.

[0017] Preferably, the driving mechanism includes a servo motor fixedly installed on the left side of the workbench, and the servo motor is symmetrically arranged in two groups. The output ends of the two groups of servo motors are keyed to a spiral screw after rotating through the side wall of the workbench, and the end of the spiral screw away from the servo motor is rotatably connected to the inner wall of the workbench after threading through the sliding table.

[0018] Preferably, a sliding groove is provided on the front surface of the workbench, an electric slider is slidably installed in the sliding groove, a first support rod is fixedly connected to the front surface of the electric slider, and a visual sensor is installed on the upper end of the first support rod.

[0019] Preferably, a second support rod is fixedly connected to the rear surface of the workbench, and another visual sensor is fixedly mounted on the upper end of the second support rod.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] 1. In the present application, by setting up the first hydraulic press and the first clamping mechanism, when the first hydraulic press is started, the first force rod can be moved downward, and the pressure plate can simultaneously apply downward pressure to the connecting rod and the lever body, thereby simulating the action of an athlete getting on the lever from the end of the lever body, and then detecting the strength of the connecting rod and the lever body according to the changes in their shapes.

[0022] 2. In the present application, through the arrangement of the second hydraulic press and the second clamping mechanism, when the two sets of second hydraulic presses are started, the two sets of second hydraulic presses can simultaneously drive the second force rods connected to the buckling ring to move downward, simulating the situation where the lever body is pressed down by the user. The pressure sensor on the upper end of the inner surface of the buckling ring records the pressure and displays the value through the display, so that the strength of the lever body can be further tested.

[0023] 3. In this application, through the setting of the driving mechanism and the sliding table, when the servo motor is started, the forward and reverse rotation of the screw rod can be driven to control the forward and backward movement of the sliding table in the empty slot, ensuring that the strength of each point in the middle section of the lever body can be measured, thereby improving the accuracy of the numerical value and fitting the actual usage scenario.

[0024] 4. In the present application, through the setting of the first support rod, the second support rod and the visual sensor, the first support rod can be moved in the sliding groove through the electric slider to align with the position of the connecting rod. The visual sensor is used to observe whether the connecting rod will produce deformation outside the error range when it is subjected to pressure, so as to judge whether the strength of the connecting rod is qualified. The visual sensor on the second support rod can record the degree of bending of the bar body, thereby judging whether the strength of the parallel bars is qualified.

[0025] To summarize, in the present application, when testing the parallel bars, pressure is applied to the left and right bars and the connecting rod at the lower end of the bars at the same time, so that the situation of the parallel bars in actual use can be simulated, and the status of the bars and the connecting rods can be detected in real time and data can be recorded through the setting of pressure sensors and visual sensors, so that the overall strength of the parallel bars can be analyzed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a schematic diagram of the overall axial structure of a parallel bar sports equipment strength detection device.

[0027] Figure 2 The present invention provides a schematic diagram of the overall top view of the strength detection device for parallel bar sports equipment.

[0028] Figure 3 The present invention is a schematic diagram of the overall side structure of a parallel bar sports equipment strength detection device.

[0029] Figure 4 The present invention provides a schematic diagram of the working table and empty slot structure of a parallel bar sports equipment strength detection device.

[0030] Figure 5 This is a schematic structural diagram of a first support rod and a visual sensor of a parallel bar sports equipment strength detection device proposed by the present invention.

[0031] Figure 6 This is a structural schematic diagram of a second hydraulic machine and a second force application rod of a parallel-bar sports equipment strength detection device proposed by the present invention.

[0032] Figure 7 This is a schematic structural diagram of a pressure plate and a rubber pad of a parallel bar sports equipment strength detection device proposed by the present invention.

[0033] Figure 8 The present invention provides a schematic diagram of the buckle ring and opening and closing buckle structure of a parallel bar sports equipment strength detection device.

[0034] In the figure: 1 workbench, 2 empty slot, 3 servo motor, 4 sliding table, 5 screw rod, 6 display, 7 mounting slot, 8 adjustment splint, 9 connecting rod, 10 lever body, 11 sliding slot, 12 electric slider, 13 first support rod, 14 visual sensor, 15 second support rod, 16 first hydraulic pressure, 17 first force rod, 18 pressure plate, 19 rubber pad, 20 second hydraulic pressure, 21 second force rod, 22 buckle ring, 23 opening and closing buckle, 24 pressure sensor. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Reference Figures 1 to 4 as well as Figures 6 to 8 A parallel bar sports equipment strength testing device comprises a workbench 1, an empty slot 2 is provided at the middle position of the upper end surface of the workbench 1, four mounting slots 7 are symmetrically provided on the upper end surface of the workbench 1 about the empty slot 2, the four mounting slots 7 are distributed on both sides of the empty slot 2 in groups of two, an adjusting splint 8 is fixedly installed on the inner wall of the mounting slot 7, a connecting rod 9 is installed inside the mounting slot 7, the connecting rod 9 can be fixed by adjusting the splint 8, so as to simulate the actual installation state of the double bars, a bar body 10 is welded and fixed to the upper ends of the two connecting rods 9 located on the front side, another bar body 10 is welded and fixed to the upper ends of the two connecting rods 9 located on the rear side, and the two bar bodies 10 and the four connecting rods 9 form a complete set of double bars.

[0037] A sliding table 4 is slidably connected inside the empty slot 2. Two groups of symmetrically arranged servo motors 3 are fixedly installed on the left side of the workbench 1 by bolts. The specific model of the servo motor 3 may be 130ST-M05025LFB. The output end of the servo motor 3 is keyed to a spiral screw 5 after rotating through the side wall of the workbench 1. The end of the spiral screw 5 away from the servo motor 3 is rotatably connected to the inner wall of the workbench 1 through a bearing after threading through the sliding table 4. When the servo motor 3 is running, the spiral screw 5 can be driven to rotate. When the spiral screw 5 rotates, it can drive the sliding table 4 to move back and forth left and right inside the empty slot 2, thereby enabling subsequent detection of different points of the lever body 10.

[0038] The second hydraulic press 20 is fixedly installed on both sides of the upper surface of the sliding table 4 by bolts. The output end of the second hydraulic press 20 is located directly below the corresponding lever body 10. The second force rod 21 is welded and fixed to the output end of the second hydraulic press 20. The upper end of the second force rod 21 is fixedly installed with a buckle ring 22 by bolts. The inner walls of the upper and lower sides of the buckle ring 22 are glued with pressure sensors 24. The pressure sensor 24 is a prior art, and its specific structural design is not repeated here. The buckle ring 22 is installed with an opening and closing buckle 23. The buckle ring 22 can be opened by pressing the opening and closing buckle 23, so that the buckle ring 22 can be fixedly sleeved on the outside of the lever body 10. A display 6 is fixedly installed at the middle position of the upper surface of the sliding table 4 by bolts. The display 6 is connected to multiple pressure sensors 24 through data cables. When the pressure sensor 24 is under pressure, the numerical value of the pressure can be displayed in real time through the display 6.

[0039] The first hydraulic press 16 is fixedly installed on both sides of the upper surface of the workbench 1 by bolts, and a first force rod 17 is welded and fixed on the output end of the first hydraulic press 16. A pressure plate 18 is fixedly installed on the upper end of the first force rod 17 by bolts. The pressure plate 18 is vertically arranged to the bar body 10. Both sides of the lower end of the pressure plate 18 are provided with engaging grooves, and rubber pads 19 are glued inside the engaging grooves. The engaging grooves are used to engage the ends of the bar body 10. When the first hydraulic press 16 is started and the first force rod 17 is moved downward, the pressure plate 18 can apply downward pressure to the two bar bodies 10 at the same time, thereby simulating the action of an athlete getting on the bar from here.

[0040] Reference Figure 5A sliding groove 11 is provided on the front surface of the workbench 1, and an electric slider 12 is slidably installed in the sliding groove 11. A first support rod 13 is welded and fixed to the front surface of the electric slider 12, and a visual sensor 14 is installed on the upper end of the first support rod 13. The position of the visual sensor 14 is not fixed, and is used to detect the shape change of the connecting rod 9 and detect whether the two connecting rods 9 on the same side are in the same state when subjected to force. A second support rod 15 is welded and fixed to the rear surface of the workbench 1, and another visual sensor 14 is fixedly installed on the upper end of the second support rod 15. The position of the visual sensor 14 is fixed, and is used to detect the shape change of the lever body 10 and detect whether the two lever bodies 10 are in the same state when subjected to force. The electric slider 12 and the visual sensor 14 are both prior arts, and their specific structural designs are not repeated here.

[0041] The specific working principle of the present invention is as follows: General parallel bar equipment strength detection devices separate the parallel bars and perform separate detections. Such detection does not conform to the use scenarios of parallel bars in real life, that is, the parallel bars are used by people at the same time. Therefore, the present invention tests the parallel bars at the same time when detecting the parallel bars, and applies pressure to the two bar bodies 10 and the four connecting rods 9 at the same time.

[0042] First, insert the connecting rod 9 of the double bars into the mounting groove 7 on the workbench 1. The spacing between the left and right mounting grooves 7 is set according to the middle value of 47 cm required by the standard to ensure that it conforms to the actual situation to the greatest extent. After inserting the mounting groove 7, adjust the splint 8 to firmly fix the double bars.

[0043] Press the opening and closing buckle 23 to open the buckling ring 22, and fix the buckling ring 22 to the double-rod lever body 10. Pressure sensors 24 are provided on the upper and lower surfaces of the inner surface of the buckling ring 22. In this way, the pressure value can be recorded regardless of whether the lever body 10 bends upward or downward. The pressure sensor 24 is connected to the display 6 on the sliding table 4 via a data cable, and the specific pressure value can be displayed.

[0044] The servo motor 3 can control the forward and backward movement of the sliding table 4 in the empty slot 2 by driving the screw rod 5 to rotate forward and reverse, ensuring that the strength of each point in the middle section of the lever body 10 can be measured, thereby improving the accuracy of the numerical value and being suitable for actual use scenarios.

[0045] During measurement, the two groups of second hydraulic cylinders 20 simultaneously drive the second force rod 21 connected to the buckling ring 22 to move downward, simulating the situation where the parallel bars are pressed down by the user. The pressure sensor 24 on the upper end of the inner surface of the buckling ring 22 records the pressure and displays the value through the display 6 to observe whether there is a difference in the pressure exerted on the bar bodies 10 on both sides. At the same time, the visual sensor 14 installed on the second support rod 15 records the degree of downward bending of the two bar bodies 10, analyzes the toughness of the two bar bodies 10, and determines whether the two are suitable for simultaneous use.

[0046] The first support rod 13 can be moved in the sliding groove 11 through the electric slider 12 to align with the position of the connecting rod 9. The visual sensor 14 is used to observe whether the connecting rod 9 will produce deformation outside the error range when subjected to pressure, so as to judge whether the strength of the connecting rod 9 is qualified. Since the two connecting rods 9 are on the same horizontal line, it is only necessary to measure the data on one side. When measuring, it is necessary to move the front and rear groups of connecting rods 9 to test whether there is deformation outside the error range.

[0047] After the measurement of the middle section of the bar body 10 is completed, the buckle ring 22 is moved to the middle position of the bar body 10. First, the first hydraulic press 16 on one side is started, and the first force rod 17 is moved downward. The pressure plate 18 simultaneously applies downward pressure to the connecting rod 9 and the end of the bar body 10, simulating the action of an athlete getting on the bar from here; at this time, the middle part of the bar body 10 will bend upward, and the pressure sensor 24 at the lower end of the inner surface of the buckle ring 22 records the pressure value, the visual sensor 14 on the second support rod 15 records the degree of bending of the bar body 10, and the visual sensor 14 on the first support rod 13 observes whether the connecting rod 9 will produce deformation outside the error range; then the first hydraulic press 16 on the other side is started and the above operation is repeated to determine whether the strength of the parallel bars is qualified.

[0048] After the test is passed, the double rods can be taken out and the next set of double rods can be tested.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A parallel bar sports equipment strength testing device, comprising a workbench (1), four connecting rods (9) and two bar bodies (10), wherein the lower end of any of the bar bodies (10) is fixedly connected to the two connecting rods (9), characterized in that: Also included are: Mounting grooves (7), wherein four mounting grooves (7) are symmetrically arranged, and are arranged in groups of two and are respectively opened on both sides of the upper surface of the workbench (1); a first hydraulic press (16), wherein two first hydraulic presses (16) are symmetrically arranged, and the two first hydraulic presses (16) are respectively fixedly mounted on both sides of the upper surface of the workbench (1), and the output end of the first hydraulic press (16) is fixedly connected to a first force application rod (17), and the upper end of the first force application rod (17) is mounted with a first clamping mechanism; An empty slot (2), the empty slot (2) being opened at a middle position of the upper surface of the workbench (1), the empty slot (2) being slidably connected to a sliding table (4) inside, a second hydraulic press (20) being fixedly mounted on both sides of the upper surface of the sliding table (4), an output end of the second hydraulic press (20) being located directly below the corresponding lever body (10), a second force application rod (21) being fixedly connected to the output end of the second hydraulic press (20), and a second clamping mechanism being mounted on the upper end of the second force application rod (21); A driving mechanism, the driving mechanism being arranged on the left side of the workbench (1) and being used to drive the sliding table (4) to move back and forth leftwards inside the empty slot (2); An adjusting clamping plate (8) for clamping and fixing the lower end of the connecting rod (9) is fixedly mounted on the inner wall of the mounting groove (7); The first clamping mechanism comprises a pressure plate (18) fixedly connected to the first force-applying rod (17), the pressure plate (18) being arranged vertically to the lever body (10), and engaging grooves being provided on both sides of the lower end of the pressure plate (18); A rubber pad (19) is glued inside the engaging groove, and the rubber pad (19) is used to increase the friction force when the engaging groove and the lever body (10) are in contact; The second clamping mechanism comprises a buckling ring (22) fixedly connected to the second force-applying rod (21), and an opening and closing buckle (23) for controlling the opening and closing of the buckling ring (22) is installed on the buckling ring (22); Pressure sensors (24) are glued to the inner walls of the upper and lower sides of the buckle ring (22), and the pressure sensors (24) are used to detect the pressure applied to the lever body (10); A display (6) is fixedly mounted at a middle position on the upper surface of the sliding platform (4), and the display (6) is connected to a plurality of pressure sensors (24) via data cables.

2. A parallel bar sports equipment strength detection device according to claim 1, characterized in that: The driving mechanism comprises a servo motor (3) fixedly mounted on the left side of the workbench (1), wherein two groups of the servo motors (3) are symmetrically arranged, and the output ends of the two groups of the servo motors (3) are key-connected with a screw rod (5) after rotating through the side wall of the workbench (1), and the end of the screw rod (5) away from the servo motor (3) is rotatably connected to the inner wall of the workbench (1) after threading through the sliding table (4).

3. A parallel bar sports equipment strength detection device according to claim 1, characterized in that: The front surface of the workbench (1) is provided with a sliding groove (11), an electric slider (12) is slidably mounted in the sliding groove (11), a first support rod (13) is fixedly connected to the front surface of the electric slider (12), and a visual sensor (14) is mounted on the upper end of the first support rod (13).

4. A parallel bar sports equipment strength detection device according to claim 3, characterized in that: A second support rod (15) is fixedly connected to the rear surface of the workbench (1), and another visual sensor (14) is fixedly mounted on the upper end of the second support rod (15).

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