A running test machine

Abstract

The utility model discloses a running testing machine for simulating human body running on a running machine, which comprises a frame, a treading assembly and a load assembly. The treading assembly is movably arranged on the frame and rotates around an axis, and can move downwards to approach the running machine or move upwards to move away from the running machine. A plurality of contact portions are formed on the outer periphery of the treading assembly and are arranged at intervals in the circumferential direction. After the treading assembly moves downwards to approach the running machine, the plurality of contact portions can sequentially contact the surface of the running belt of the running machine to simulate the contact action of human body running on the running machine. The load assembly is used to drive the treading assembly to move downwards to approach the running machine. The utility model can simulate the contact action of human body running on the running machine and is closer to the actual running state of human body.

Description

Technical Field

[0001] This utility model relates to the technical field of treadmill testing, and in particular to a treadmill testing machine. Background Technology

[0002] Treadmills are a common piece of fitness equipment in homes and gyms. During the production, manufacturing, research and development and improvement process, it is essential to conduct thorough and reliable performance testing on treadmills. Existing mechanical testing devices generally use counterweights for downward pressure testing, which has a single function and cannot truly simulate human running. Utility Model Content

[0003] The purpose of this utility model is to provide a running test machine, and the technical problem to be solved is to provide a test machine that can simulate the human body running on a treadmill.

[0004] To achieve the above objectives, the solution of this utility model is: a treadmill for simulating human running on a treadmill, including a frame, a pedaling component, and a load component; The pedal assembly is movably mounted on the frame and rotates around an axis. It can move downward toward or upward toward the treadmill. The outer periphery of the pedal assembly has multiple contact parts that are spaced apart circumferentially. When the pedal assembly moves downward toward the treadmill, the multiple contact parts can sequentially contact the surface of the treadmill's running belt to simulate the contact action of a human body running on a treadmill. The load-bearing component is used to drive the pedaling component downwards towards the treadmill.

[0005] Furthermore, it also includes a swing frame, which is pivotally connected to the frame. The frame has a test station for accommodating the treadmill. The pedaling component is rotatably mounted at the end of the swing frame, above the test station. The swing frame pivots, causing the pedaling component to swing up and down. The load component is connected to the swing frame and is used to apply a downward force to the swing frame. After the end of the swing frame swings downward, the pedaling component can contact the surface of the running belt downward.

[0006] Furthermore, the load assembly includes an air spring and an air tank connected to the air spring for inflating the air spring to simulate different human body weights by adjusting the air pressure inside the air spring.

[0007] Furthermore, the load assembly includes two air springs, which are spaced apart along the conveying direction of the treadmill belt and connected to the swing frame, located in front of and behind the pivot shaft, respectively. The load assembly is configured to independently control the air pressure in each air spring, so that the air pressure in the two air springs is different. The pedal assembly is rotated and set at the front end of the swing frame so as to drive the pedal assembly to swing downward through the pressure difference between the two air springs.

[0008] Furthermore, the load assembly also includes a damping rod, one end of which is connected to the frame and the other end to the swing frame, used to suppress the vibration of the air spring after pressure changes.

[0009] Furthermore, the frame includes a crossbeam that spans across the test station, and the load assembly also includes a mounting base that is detachably fitted onto the crossbeam and can be adjusted up and down in height. The swing frame can be adjusted in height synchronously, so that the swing frame swings downward at different angles so that the pedaling assembly contacts the surface of the running belt.

[0010] Furthermore, the pedaling assembly includes a left pedal and a right pedal that are spaced parallel to each other. Both the left and right pedals include a pedal body, which is an equilateral triangle with its three corners protruding outward to form the contact portion. The contact portions of the left and right pedals are staggered along the conveying direction of the running belt. The running belt can actively and continuously convey backward to drive the left and right pedals to alternately contact the surface of the running belt, simulating human bipedal running.

[0011] Furthermore, the contact part is an abutment wheel, which is connected and fixed to the pedal body by a tension ring, so that the abutment wheel and the pedal body are tightly fitted. When the running belt drives the abutment wheel to move backward, the tension ring is used to transmit the torque borne by the abutment wheel to the pedal body without slippage.

[0012] Furthermore, it also includes a traction component, which includes a telescopic cylinder and a drive motor. The drive motor is used to drive the telescopic cylinder to extend and retract along the conveying direction of the running belt. The telescopic end of the telescopic cylinder is connected to the treadmill to drive the treadmill to move back and forth relative to the frame as a whole, so that the pedaling component can abut against different positions on the surface of the running belt.

[0013] Furthermore, it also includes a positioning component, which includes multiple limit wheels. These limit wheels are spaced apart on both sides of the test station. After the treadmill is placed on the test station, the multiple limit wheels can respectively form rolling contact with the left and right sides of the treadmill to restrict the treadmill's lateral movement.

[0014] After adopting the above solution, the beneficial effects of this utility model are as follows: by protruding multiple contact points on the outer periphery of the pedal component and arranging multiple contact parts at intervals along the circumference, the multiple contact parts can sequentially contact the running belt surface of the treadmill. At the same time, the load component can drive the pedal component to contact the running belt surface by simulating the weight of the human body, so as to truly simulate the contact action of the human body when running on the treadmill. Secondly, by connecting the load component to the swing frame, the swing frame can be made to swing up and down by adjusting the load component, so that the stepping component set at the end of the swing frame can perform impact testing on the treadmill. This test machine can not only perform impact testing on the treadmill, but also simulate human running and perform stepping testing. In addition, the load assembly simulates human body weight by changing the pressure inside the air spring, making it easier to control and allowing for real-time changes in gravity. It can simulate not only different human body weights but also changes in foot pressure during pedaling, resulting in a more realistic effect. Furthermore, two air springs are spaced apart along the direction of the running belt, connected to the swing frame and located in front of and behind the pivot shaft, respectively. The pressure changes in the two air springs can be controlled independently, forming a lever structure that allows the pedaling assembly at the end of the swing frame to achieve a greater stroke. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the treadmill of this utility model located at the testing station.

[0016] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 4 This is a schematic diagram of the load assembly and swing frame of this utility model mounted on the frame.

[0019] Figure 5 This is a schematic diagram of the load assembly of this utility model connected to the swing frame.

[0020] Figure 6 This is a cross-sectional structural diagram of the pedal component of this utility model.

[0021] Labeling Explanation: 100-Treadmill, 110-Treadmill Belt, 1-Frame, 2-Pedaling Component, 3-Load Component, 4-Contact Part, 5-Swing Frame, 6-Test Station, 7-Traction Component, 8-Pressure Ring, 9-Positioning Component, 11-Crossbeam, 21-Left Pedal Component, 22-Right Pedal Component, 23-Pedaling Body, 24-Abutting Wheel, 31-Air Spring, 311-First Air Spring, 312-Second Air Spring, 32-Air Tank, 321-First Air Tank, 322-Second Air Tank, 33-Resistance Shock Absorber Rod, 34-Mounting Base, 51-Pivot Shaft, 52-Mounting Part, 71-Telescopic Cylinder, 72-Drive Motor, 73-First Fixed Base, 91-Limiting Wheel, 92-Second Fixed Base, 121-Second Mounting Hole, 341-First Mounting Hole. Detailed Implementation

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "middle", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] like Figure 1-6 As shown, this utility model provides a treadmill testing machine for simulating human running on a treadmill 100, capable of performing impact and treadmill treadmill tests. It includes a frame 1, a treadmill assembly 2, and a load assembly 3. The treadmill assembly 2 is movably mounted on the frame 1, rotates around an axis, and can move downwards towards or upwards away from the treadmill 100. Specifically, this can be achieved by swinging up and down or by lifting up and down. The outer periphery of the treadmill assembly 2 has protrusions forming multiple contact portions 4, which are spaced circumferentially. After the treadmill assembly 2 rotates around its axis, the multiple contact portions 4 can be aligned in the same circle. On the circumferential track, after the pedaling component 2 moves downward toward the treadmill 100, multiple contact parts 4 can sequentially contact the surface of the running belt 110 of the treadmill 100 to simulate the contact action of a human body running on the treadmill 100, including the periodic pedaling action of the human foot lifting and lowering. The pedaling component 2 can actively rotate to achieve the pedaling action, or it can be driven to passively rotate by the transmission of the running belt 110. The load component 3 is used to drive the pedaling component 2 to move downward toward the treadmill 100. The load component 3 can simulate the weight of the human body, thereby realistically simulating the human body running on the treadmill.

[0025] Key points combined Figure 3As shown, it also includes a swing frame 5, which is pivotally connected to the frame 1. The frame 1 has a test station 6 for accommodating the treadmill 100. The pedaling component 2 is rotatably disposed at the end of the swing frame 5, above the test station 6. The swing frame 5 pivots, causing the pedaling component 2 to swing up and down. The load component 3 is connected to the swing frame 5 and is used to apply a downward force to the swing frame 5. After the end of the swing frame 5 swings downward, the pedaling component 2 can contact the surface of the running belt 110 downward. Specifically, the swing frame 5 can be pivotally connected to the frame 1 at one end, causing the other end to swing up and down, or the middle of the swing frame 5 can be pivotally connected to the frame 1, causing the two ends to swing in opposite directions. The load component 3 can change the load weight, causing the swing frame 5 to swing up or down, so that the pedaling component 2 at the end of the swing frame 5 can impact the treadmill 100 downward to achieve the impact test. Similarly, the pedaling component 2 can always be pressed against the treadmill 100 by realistically simulating different human body weights to achieve the pedaling test.

[0026] In this specific embodiment, the running belt 110 of the treadmill 100 extends forward and backward and conveys the treadmill from front to back. The frame 1 includes a crossbeam 11 and support rods 12, with two support rods 12. The crossbeam 11 extends laterally and spans above the test station 6. The two support rods 12 support the left and right sides of the crossbeam 11, respectively. Preferably, the swing frame 5 extends forward and backward in the same direction as the running belt 110. The middle of the swing frame 5 is pivotally connected to the two support rods 12. The pivot shaft 51 of the swing frame 5 extends laterally. The load assembly 3... There are two load components 3, each connected to the swing frame 5 and located in front of and behind the pivot shaft 51, respectively. The swing frame 5 is driven to swing by the gravity difference between the two load components 3. The front end of the swing frame 5 extends forward to form a mounting part 52. The pedal component 2 is rotatably mounted on the mounting part 52 via a rotating structure, allowing the pedal component 2 to rotate relative to the swing frame 5. The rotating structure can be a structure using a rotating shaft and a bearing. The bearing is a one-way needle roller bearing, allowing the pedal component 2 to rotate only in one direction. This is prior art and will not be described in detail. Figure 5 As shown, because the load assembly 3 is close to the pivot shaft 51, the pedal assembly 2 located at the far end can achieve a large stroke with a small force.

[0027] To facilitate control of the gravity changes of the load component 3, the load component 3 includes an air spring 31. The air spring 31 can be any existing device that can simulate a load through changes in its internal pressure. There are two air springs 31, which are connected to the swing frame 5 along the transmission direction of the running belt 110, respectively located in front of and behind the pivot shaft 51, so that the two air springs 31 can swing in opposite directions. The load component 3 is configured to independently control the air pressure in each air spring 31, so that the air pressure in the two air springs 31 is different. The pedal component 2 is rotatably set at the front end of the swing frame 5, so as to drive the pedal component 2 to swing downward or upward through the pressure difference between the two air springs 31. Of course, in other embodiments, the load component 3 can also simulate the weight of a human body by using a weight block.

[0028] Key points combined Figure 3-4 As shown, the load assembly 3 also includes an air tank 32, which is connected to an air spring 31 and is used to inflate the air spring 31. By adjusting the air pressure inside the air spring 31, different human body weights can be simulated. Specifically, the two air springs 31 are a first air spring 311 and a second air spring 312. There are two air tanks 32, namely a first air tank 321 and a second air tank 322. The first air tank 321 is connected to the first air spring 311 through an air pipe, and the second air tank 322 is connected to the second air spring 312 through an air pipe. This allows the air pressure of the two air springs 31 to be controlled independently, which is convenient for adjustment. By adjusting the air pressure of the two air springs 31 respectively, the pressure difference between the two air springs 31 can be changed to simulate different human body weights, or different loads can be achieved through the pressure difference.

[0029] Key points combined Figure 5 As shown, the load assembly 3 also includes a damping rod 33. One end of the damping rod 33 is connected to the frame 1, and the other end is connected to the swing frame 5. It is used to suppress the vibration of the air spring 31 after pressure change, so that the swing frame 5 swings more stably. Specifically, there are multiple damping rods 33, which are connected to the swing frame 5 respectively and located in front of and behind the pivot shaft 51. The damping rod 33 adopts the existing hydraulic resistance balancer, which is a device that can consume vibration energy by generating resistance through the flow of hydraulic oil through the valve. It is existing technology and will not be described in detail.

[0030] In this specific embodiment, the load assembly 3 also includes a mounting base 34, which is detachably sleeved and fixed on the crossbeam 11. The mounting height can be adjusted up and down, and the swing frame 5 can be adjusted in height synchronously, so that the swing frame 5 swings down at different angles so that the stepping assembly 2 contacts the surface of the running belt 110. Specifically, the mounting base 34 has a plurality of first mounting holes 341 arranged longitudinally. The height of the load assembly 3 is adjusted by fixing it to the crossbeam 11 through different first mounting holes 341. Second mounting holes 121 are respectively provided on the opposite sides of the two support rods 12. There are multiple second mounting holes 121 arranged longitudinally, and the interval between two adjacent second mounting holes 121 is the same as the interval between two adjacent first mounting holes 341. In addition, the mounting base 34 and the crossbeam 11 are assembled in a box-type structure. Specifically, the cross-section of the crossbeam 11 is square, and the mounting base 34 forms a mounting groove 35 for the crossbeam 11 to be inserted. The mounting groove 35 is square and consistent with the outer contour of the crossbeam 11, making the structure more stable after assembly.

[0031] Key points combined Figure 3 As shown, the pedal assembly 2 is an integral structure, including a left pedal component 21 and a right pedal component 22 that are parallel and spaced apart. Both the left pedal component 21 and the right pedal component 22 include a pedal body 23, which is an equilateral triangle structure. The triangle structure is stable and high, and its three corners protrude outward to form the contact portion 4. The contact portion 4 of the left pedal component 21 and the contact portion 4 of the right pedal component 22 are staggered in the conveying direction of the running belt 110. The running belt 110 can actively and continuously convey backward to drive the left pedal component 21 and the right pedal component 22 to alternately contact the surface of the running belt 110 to simulate human bipedal running.

[0032] Key points combined Figure 6 As shown, the contact part 4 is the abutment wheel 24. The abutment wheel 24 is connected and fixed to the pedal body 23 by the tension ring 8. When the running belt 110 drives the abutment wheel 24 to move backward, the tension ring 8 is used to transmit the torque borne by the abutment wheel 24 to the pedal body 23 without slippage, so that the abutment wheel 24 and the pedal body 23 achieve a tight fit. The abutment wheel 24 adopts the existing tire surface structure, which can form a large friction force with the running belt 110, increase the force, and the abutment wheel 24 has a line contact with the surface of the running belt 110, resulting in a faster driving speed and increased rotation frequency of the pedal assembly 2.

[0033] Key points combined Figure 3As shown, it also includes a traction component 7, which is preferably a servo electric cylinder, small in size, strong in thrust, and precise in positioning. Specifically, the traction component 7 includes a telescopic cylinder 71 and a drive motor 72. The drive motor 72 is used to drive the telescopic cylinder 71 to extend and retract along the conveying direction of the running belt 110. The telescopic end of the telescopic cylinder 71 is connected to the treadmill 100. The front end of the treadmill 100 has a column, and the telescopic end of the telescopic cylinder 71 is fixed to the column (e.g., Figure 1 As shown, the treadmill 100 is driven to move back and forth relative to the frame 1 by telescopic cylinder 71, so that the pedaling component 2 can abut against different positions on the surface of the running belt 110. The traction component 7 also includes a first fixed seat 73, which is connected to the end of the traction component 7 away from the test station 6. The first fixed seat 73 can adjust the height and length of the traction component 7 to match different specifications of treadmills.

[0034] Key points combined Figure 2 As shown, it also includes a positioning component 9, which includes multiple limiting wheels 91. The multiple limiting wheels 91 are spaced apart on both sides of the test station 6. After the treadmill 100 is placed on the test station 6, the multiple limiting wheels 91 can form rolling contact with the left and right sides of the treadmill 100 respectively to restrict the lateral movement of the treadmill 100. Specifically, the positioning component 9 also includes a second fixed seat 92. The limiting wheels 91 are installed on the second fixed seat 92, and the second fixed seat 92 can adjust the position of the limiting wheels 91. One limiting wheel 91 is configured with one second fixed seat 92 to match and limit treadmills of different specifications.

[0035] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A treadmill testing machine for simulating human running on a treadmill (100), characterized in that: It includes a frame (1), a pedal assembly (2), and a load assembly (3); The pedal assembly (2) is movably mounted on the frame (1), rotates around an axis, and can move downward toward or upward toward the treadmill (100). The outer periphery of the pedal assembly (2) has multiple contact parts (4) protruding, and the multiple contact parts (4) are spaced apart in the circumferential direction. After the pedal assembly (2) moves downward toward the treadmill (100), the multiple contact parts (4) can sequentially contact the surface of the running belt (110) of the treadmill (100) to simulate the contact action of the human body when running on the treadmill (100). The load component (3) is used to drive the pedal component (2) downward toward the treadmill (100).

2. The treadmill as described in claim 1, characterized in that: It also includes a swing frame (5), which is pivotally connected to the frame (1). The frame (1) has a test station (6) for accommodating the treadmill (100). The pedal assembly (2) is rotatably set at the end of the swing frame (5) and located above the test station (6). The swing frame (5) pivots, causing the pedal assembly (2) to swing up and down. The load assembly (3) is connected to the swing frame (5) and is used to apply a downward force to the swing frame (5). After the end of the swing frame (5) swings down, the pedal assembly (2) can contact the surface of the running belt (110) downward.

3. The treadmill as described in claim 1, characterized in that: The load assembly (3) includes an air spring (31) and an air tank (32), the air tank (32) being connected to the air spring (31) for inflating the air spring (31) to simulate different human body weights by adjusting the air pressure inside the air spring (31).

4. The treadmill as described in claim 2, characterized in that: The load assembly (3) includes two air springs (31). The two air springs (31) are spaced apart along the transmission direction of the running belt (110) and connected to the swing frame (5), located in front of and behind the pivot shaft (51), respectively. The load assembly (3) is configured to independently control the air pressure in each air spring (31) so that the air pressure in the two air springs (31) is different. The pedal assembly (2) is rotatably set at the front end of the swing frame (5) so as to drive the pedal assembly (2) to swing downward through the pressure difference between the two air springs (31).

5. The treadmill as described in claim 3 or 4, characterized in that: The load assembly (3) also includes a damping rod (33), one end of which is connected to the frame (1) and the other end is connected to the swing frame (5), which is used to suppress the vibration of the air spring (31) after pressure change.

6. The treadmill as described in claim 2, characterized in that: The frame (1) includes a crossbeam (11) that spans across the test station (6). The load assembly (3) also includes a mounting base (34) that is detachably fitted and fixed on the crossbeam (11) and can be adjusted up and down. The swing frame (5) can be adjusted up and down synchronously so that the swing frame (5) swings down to a different angle so that the stepping assembly (2) contacts the surface of the running belt (110).

7. The treadmill as described in claim 1, characterized in that: The pedal assembly (2) includes a left pedal (21) and a right pedal (22) spaced parallel to each other. Both the left pedal (21) and the right pedal (22) include a pedal body (23). The pedal body (23) has an equilateral triangular structure, with its three corners protruding outward to form the contact portion (4). The contact portion (4) of the left pedal (21) and the contact portion (4) of the right pedal (22) are staggered along the conveying direction of the running belt (110). The running belt (110) can actively and continuously convey backward to drive the left pedal (21) and the right pedal (22) to alternately contact the surface of the running belt (110) to simulate human running with both feet.

8. The treadmill as described in claim 7, characterized in that: The contact part (4) is an abutment wheel (24). The abutment wheel (24) is connected and fixed to the pedal body (23) by a tension ring (8), so that the abutment wheel (24) and the pedal body (23) are tightly fitted. When the running belt (110) drives the abutment wheel (24) to move backward, the tension ring (8) is used to transmit the torque borne by the abutment wheel (24) to the pedal body (23) without slippage.

9. The treadmill as described in claim 1, characterized in that: It also includes a traction assembly (7), which includes a telescopic cylinder (71) and a drive motor (72). The drive motor (72) is used to drive the telescopic cylinder (71) to extend and retract along the conveying direction of the running belt (110). The telescopic end of the telescopic cylinder (71) is connected to the treadmill (100) to drive the treadmill (100) to move back and forth relative to the frame (1) as a whole, so that the pedaling assembly (2) can abut against different positions on the surface of the running belt (110).

10. The treadmill as described in claim 1, characterized in that: It also includes a positioning component (9), which includes a limit wheel (91). The number of limit wheels (91) is multiple. The multiple limit wheels (91) are spaced apart on both sides of the test station (6). After the treadmill (100) is placed on the test station (6), the multiple limit wheels (91) can form rolling contact with the left and right sides of the treadmill (100) respectively to restrict the lateral movement of the treadmill (100).

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