An exercise equipment simulation impact testing system

Abstract

The utility model discloses a kind of fitness equipment simulation impact test systems, including support frame, rotating frame, rubber tire, lifting assembly, power system, fixed rod and PLC control unit. The rotating speed of motor is controlled by PLC control unit to further control the rotating speed of rubber tire, simulate impact load under different running speed conditions;And simulate impact load under different weight conditions by loading counterweight disc of different mass;The application solves the problem that tire is stationary and cannot simulate human running;While simulating impact load under different weight and different running speed conditions, strong adjustability.

Description

Technical Field

[0001] This utility model relates to the field of impact testing technology, and in particular to a simulated impact testing system for fitness equipment. Background Technology

[0002] Fitness equipment, such as treadmills, is one of the main tools for indoor aerobic exercise. Its quality can be determined through certain testing methods, among which impact testing is an important indicator in the quality and safety assessment of fitness equipment.

[0003] For example, Chinese patent CN220039778U, published on November 17, 2023, discloses a treadmill belt impact testing machine. It includes a movable frame, with a positioning block connected to the side of the movable frame via a guide block. The positioning block is located on the side of the treadmill. A testing unit is mounted on the upper part of the movable frame. The testing unit includes a cylinder mounted on the top of the movable frame, a chain connected to the bottom of the cylinder, a dumbbell connected to the bottom of the chain, and the dumbbell mounted on a dumbbell mounting shaft. A guide mechanism is connected to the top of the dumbbell mounting shaft, and a tire is connected to the lower side of the dumbbell mounting shaft via a tire axle. Using this technical solution, a treadmill belt impact testing machine is manufactured. The tire applies an impact load to the treadmill belt in a free-fall manner, simulating the situation when a person runs, thus ensuring the effectiveness of the impact test on the treadmill belt.

[0004] As can be seen from the above patents, the impact testing machine uses tires to apply impact loads to simulate the situation of a human running, but there is a problem that it cannot simulate human running when the tires are stationary. Therefore, this utility model provides a fitness equipment impact simulation testing system to solve the above problem. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a simulated impact testing system for fitness equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A simulated impact testing system for fitness equipment includes a support frame 1. Two rotating frames 2 are used for bearing and rotating, and the rotating frames 2 are rotatably connected to the rear of the support frame 1; Rubber tire 3, the rubber tire 3 is used to simulate impact on the fitness equipment, and the rubber tire 3 is rotatably mounted in the middle of one end of the two rotating frames 2; Lifting assembly 4, which is used to raise and lower the rotating frame 2, is fixedly installed in the middle of the front center of the two rotating frames 2; The power system 5 is used to drive the rubber tire 3, and the power system 5 is fixedly installed in the middle of the two rotating frames 2. The power system 5 includes a second fixed bracket 51, with its two ends fixedly connected to two rotating frames 2 respectively. A motor 52 is fixedly installed on the middle part of the second fixed bracket 51. The output end of the motor 52 is coaxially connected to a first rotating shaft 53 via a coupling. A main pulley 54 is fixedly installed on the first rotating shaft 53. The main pulley 54 is connected to a driven pulley 55 via a belt. The driven pulley 55 is fixedly installed on a second rotating shaft 56. The second rotating shaft 56 is rotatably connected to the rotating frame 2, and the rubber tire 3 is fixedly installed on the second rotating shaft 56.

[0007] Optionally, the lifting assembly 4 includes a first fixed bracket 41, with both ends of the first fixed bracket 41 fixedly connected to the two rotating frames 2 respectively. The middle part of the first fixed bracket 41 is sequentially fixedly connected from bottom to top to a lower clamp 42, a chain 43, an upper clamp 44, a first fixed rod 45, a second fixed rod 46, a push rod 47, and a cylinder 48. The bottom of the lower clamp 42 is fixedly installed on the first fixed bracket 41. The lower clamp 42 and the upper clamp 44 are symmetrically fixed to both ends of the chain 43 respectively. The push rod 47 is slidably connected to the cylinder 48.

[0008] Optionally, several fixing rods 6 are symmetrically fixedly installed on the front of the two rotating frames 2, and the fixing rods 6 are symmetrically and evenly distributed around the axis of the rubber tire 3; several counterweight discs 61 are installed on the fixing rods 6, and the center hole of the counterweight discs 61 is adapted to the fixing rods 6.

[0009] Optionally, a PLC control unit 7 is fixedly installed on the rear of the support frame 1, and the PLC control unit 7 is electrically connected to the cylinder 48 and the motor 52 respectively.

[0010] Optionally, two fixed frames 11 are symmetrically fixedly installed at the rear of the support frame 1, and a fixed shaft 12 is fixedly provided in the middle of the fixed frame 11. The two rotating frames 2 are respectively rotatably connected to the two fixed shafts 12.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The PLC control unit controls the motor speed, which in turn controls the speed of the rubber tire, to simulate the impact load under different running speed conditions; 2. Impact loads under different weight conditions are simulated by loading counterweights of different masses; This application solves the problem that a stationary tire cannot simulate human running; at the same time, it simulates impact loads under different weights and running speeds, and is highly adjustable. Attached Figure Description

[0012] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0013] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0014] Figure 1 This is a top view of the structure of this utility model; Figure 2 This is a schematic diagram of the left-side structure of this utility model; The diagram shows: 1. Support frame; 11. Fixed frame; 12. Fixed shaft; 2. Rotating frame; 3. Rubber tire; 4. Lifting assembly; 41. First fixed bracket; 42. Lower clamp; 43. Chain; 44. Upper clamp; 45. First fixed rod; 46. Second fixed rod; 47. Push rod; 48. Cylinder; 5. Power system; 51. Second fixed bracket; 52. Motor; 53. First rotating shaft; 54. Main pulley; 55. Driven pulley; 56. Second rotating shaft; 6. Fixed rod; 61. Counterweight plate; 7. PLC control unit. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention; rather, it merely represents selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0018] It should be noted that similar labels and letters can easily represent similar items in the following figures; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings; or the orientation or positional relationship commonly used when the product of this utility model is in use; or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only used for the convenience of describing this utility model and simplifying the description; they 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 utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Reference Figure 1-2 The present invention discloses a simulated impact testing system for fitness equipment, comprising a support frame 1, a rotating frame 2, rubber tires 3, a lifting assembly 4, a power system 5, a fixing rod 6, and a PLC control unit 7.

[0022] The four corners of the support frame 1 are fixedly installed on the ground. Two fixed frames 11 are symmetrically fixedly installed at the rear of the support frame 1. A fixed shaft 12 is fixedly installed in the middle of the fixed frame 11. Two rotating frames 2, which are used for bearing and rotation, are rotatably connected to the two fixed shafts 12 respectively. Rubber tires 3, which are used to simulate impact on the fitness equipment, are rotatably installed in the middle of one end of the two rotating frames 2.

[0023] The lifting assembly 4, used to raise and lower the rotating frame 2, is fixedly installed in the middle of the front center of the two rotating frames 2. The lifting assembly 4 includes a first fixed bracket 41, a lower clamp 42, a chain 43, an upper clamp 44, a first fixed rod 45, a second fixed rod 46, a push rod 47, and a cylinder 48, which are fixedly connected from bottom to top. The two ends of the first fixed bracket 41 are fixedly connected to the two rotating frames 2 respectively. The lower clamp 42 and the upper clamp 44 are symmetrically fixed to the two ends of the chain 43 respectively. The push rod 47 is slidably connected in the cylinder 48. The cylinder 48 can drive the push rod 47 to raise and lower quickly. The push rod 47 sequentially drives the second fixed rod 46, the first fixed rod 45, the upper clamp 44, the chain 43, the lower clamp 42, and the first fixed bracket 41 to raise and lower quickly, thereby driving the two rotating frames 2 and the rubber tire 3 to raise and lower quickly, so as to perform repeated simulated impact tests on the fitness equipment under the rubber tire 3.

[0024] A power system 5 for driving the rubber tire 3 is fixedly installed in the middle of the two rotating frames 2. The power system 5 includes a second fixed bracket 51, a motor 52, a first rotating shaft 53, a main pulley 54, a driven pulley 55, and a second rotating shaft 56. The motor 52, which provides power, is fixedly installed on the middle of the second fixed bracket 51, which is fixedly connected to the middle of the two rotating frames 2 at both ends. The output end of the motor 52 is coaxially connected to the first rotating shaft 53 through a coupling. The main pulley 54 is fixedly installed on the first rotating shaft 53. The main pulley 54 is connected to the driven pulley 55 through a belt. The driven pulley 55 is fixedly installed on the second rotating shaft 56. The second rotating shaft 56 is rotatably connected to the rotating frame 2, and the rubber tire 3 is fixedly installed on the second rotating shaft 56. The output end of the motor 52 can sequentially drive the first rotating shaft 53, the main pulley 54, the driven pulley 55, and the second rotating shaft 56 to rotate through the coupling, thereby driving the rubber tire 3 to rotate. The rotation speed of the rubber tire 3 can be controlled by controlling the motor 52.

[0025] In an optional embodiment, several fixing rods 6 are symmetrically fixedly installed on the front of the two rotating frames 2. The fixing rods 6 are symmetrically and evenly distributed around the axis of the rubber tire 3 so that the load is evenly distributed and applied to the rubber tire 3. Several counterweight plates 61 are installed on the fixing rods 6. The center hole of the counterweight plate 61 is adapted to the fixing rod 6. By loading counterweight plates 61 of different masses on the fixing rods 6, the impact load under different weight conditions is simulated.

[0026] In an optional embodiment, a PLC control unit 7 is fixedly mounted on the rear of the support frame 1. The PLC control unit 7 is electrically connected to and controls the cylinder 48 and the motor 52 respectively.

[0027] It should be noted that the connection between the air inlet and outlet of cylinder 48 and related control technology can be found in the relevant records of Chinese patent CN220039778U, and will not be repeated here.

[0028] The working principle and usage process of this utility model are as follows: First, place the fitness equipment under the rubber tire 3 and turn on the fitness equipment; A counterweight plate 61 of appropriate mass is placed on the fixed rod 6. Then, the PLC control unit 7 controls the motor 52 and cylinder 48 to start. The output end of the motor 52 drives the first rotating shaft 53, the main pulley 54, the driven pulley 55 and the second rotating shaft 56 to rotate in sequence through the coupling, thereby driving the rubber tire 3 to rotate. The PLC control unit 7 can control the motor 52 and thus control the speed of the rubber tire 3. At the same time, the cylinder 48 drives the push rod 47 to drive the second fixed rod 46, the first fixed rod 45, the upper clamp 44, the chain 43, the lower clamp 42 and the first fixed bracket 41 to rise and fall quickly in sequence. Finally, it drives the two rotating frames 2 and the rubber tire 3 to rise and fall quickly, so as to perform repeated simulated impact tests on the fitness equipment under the rubber tire 3.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A simulated impact testing system for fitness equipment, characterized in that: Including support frame (1), Two rotating frames (2) are used for bearing and rotating, and the rotating frames (2) are rotatably connected to the rear of the support frame (1); A rubber tire (3) is used to simulate impact on the fitness equipment. The rubber tire (3) is rotatably mounted in the middle of one end of the two rotating frames (2). Lifting assembly (4), the lifting assembly (4) is used to raise and lower the rotating frame (2), and the lifting assembly (4) is fixedly installed in the middle of the front middle part of the two rotating frames (2); A power system (5) is used to drive the rubber tire (3), and the power system (5) is fixedly installed in the middle of the two rotating frames (2); The power system (5) includes a second fixed bracket (51), the two ends of which are fixedly connected to the two rotating frames (2) respectively. A motor (52) is fixedly installed on the middle part of the second fixed bracket (51). The output end of the motor (52) is coaxially connected to the first rotating shaft (53) through a coupling. A main pulley (54) is fixedly installed on the first rotating shaft (53). The main pulley (54) is connected to a driven pulley (55) through a belt. The driven pulley (55) is fixedly installed on the second rotating shaft (56). The second rotating shaft (56) is rotatably connected to the rotating frame (2) and the rubber tire (3) is fixedly installed on the second rotating shaft (56).

2. The fitness equipment simulated impact testing system according to claim 1, characterized in that: The lifting assembly (4) includes a first fixed bracket (41), the two ends of which are fixedly connected to the two rotating frames (2). The middle part of the first fixed bracket (41) is fixedly connected from bottom to top to a lower clamp (42), a chain (43), an upper clamp (44), a first fixed rod (45), a second fixed rod (46), a push rod (47), and a cylinder (48). The bottom of the lower clamp (42) is fixedly installed on the first fixed bracket (41). The lower clamp (42) and the upper clamp (44) are symmetrically fixed to the two ends of the chain (43). The push rod (47) is slidably connected to the cylinder (48).

3. The fitness equipment simulated impact testing system according to claim 1, characterized in that: Several fixing rods (6) are symmetrically fixedly installed on the front of the two rotating frames (2). The fixing rods (6) are symmetrically and evenly distributed with the axis of the rubber tire (3) as the center. Several counterweights (61) are installed on the fixing rods (6). The center hole of the counterweight (61) is adapted to the fixing rod (6).

4. The fitness equipment simulated impact testing system according to claim 2, characterized in that: A PLC control unit (7) is fixedly installed on the rear of the support frame (1), and the PLC control unit (7) is electrically connected to the cylinder (48) and the motor (52) respectively.

5. The fitness equipment simulated impact testing system according to claim 1, characterized in that: Two fixed frames (11) are symmetrically fixedly installed at the rear of the support frame (1), and a fixed shaft (12) is fixedly installed in the middle of the fixed frame (11). The two rotating frames (2) are respectively rotatably connected to the two fixed shafts (12).

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