Treadmill with force measuring function

Abstract

The invention discloses a treadmill with a force measuring function, and belongs to the technical field of sports and fitness equipment. The problems that in the prior art, measurement experiment data are tedious, and calibration needs overall inspection are solved. According to the technical scheme, a frame is installed on a bottom plate, a handrail is installed at the front end of the frame, a treadmill body is arranged in the frame and does not make contact with the frame, and four balance structures are arranged between the treadmill body and the frame and distributed in a rectangular shape; the measuring end of the balance structure is connected with the treadmill body through a spherical hinge mechanism, and the mounting end of the balance structure is fixed to the frame. In the force measurement process, the force sensor has excellent linearity and sensitivity, keeps long-term stability in an extremely wide measurement range, can precisely measure each quick action, has high resolution and reliability, has relatively high sensitivity, is high in overload resistance, long in service life and free of aging, and meanwhile, reduces the equipment detection cost and reduces the maintenance difficulty.

Description

Technical Field

[0001] The invention relates to the technical field of sports and fitness equipment, in particular to a treadmill with a force measuring function. Background Art

[0002] Running can enhance the body's metabolism and increase the body's basal metabolic rate. It can not only reduce weight, but also promote the production of white blood cells and enhance the body's immunity. It can also improve cardiopulmonary function. Running is an aerobic exercise that can effectively stimulate the heart, improve myocardial contractility, and increase lung capacity. It can also reduce body fat percentage, consume calories, accelerate the consumption of excess fat in the body, enhance muscle contraction, and increase the proportion of muscle in the body. It can prevent disease, increase the heart rate, and improve cardiovascular elasticity. It can effectively reduce the incidence of serious cardiovascular and cerebrovascular diseases such as coronary heart disease, stroke, and cerebral infarction. It can also improve sleep, increase blood and oxygen supply to the brain, and relax the brain and relieve stress.

[0003] Research on the forces applied during running has many benefits for runners. First, strength training can significantly improve the speed and endurance of runners. Through strength training, runners can enhance muscle strength and endurance, thereby reducing fatigue during running and extending running time. For example, core strength training can improve running posture, make running more stable and smooth, and thus improve running efficiency. In addition, lower limb strength training can enhance the explosive power of muscles, better help runners accelerate and cope with terrain changes; secondly, strength training helps prevent sports injuries. Runners who lack strength training often have problems such as hunchbacks, weak arm swings, and unstable steps when running, which not only affects speed but also increases the risk of injury. Strength training can enhance the strength of the core and lower limb muscles, improve posture and stability, reduce unnecessary movements and swings, and thus reduce the risk of injury; in addition, strength training can balance muscle development, reduce excessive fatigue in certain parts, increase joint stability, and further reduce the possibility of joint injuries.

[0004] In the prior art, the equipment is large in size and requires more storage space; it is expensive and requires regular maintenance; if you do not pay attention to your posture and rhythm, you may suffer muscle strain or joint injury when using the treadmill; measuring the force and torque of the foot on the running belt is cumbersome and not conducive to running motion data analysis; the uneven ground has a great impact on the force measurement results, and calibration requires an overall inspection, and then calibration is performed only after the problem is found, which greatly increases the inspection process.

[0005] Therefore, it is urgent to propose a treadmill with a force measurement function to solve the problems in the prior art that the measurement of experimental data is cumbersome and the calibration requires overall inspection. Summary of the invention

[0006] In view of the above facts, in order to solve the problem in the prior art that the measurement of experimental data is cumbersome and the calibration requires overall inspection, the present invention further designs a treadmill with a force measurement function.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A treadmill with a force measurement function, comprising a treadmill body, a frame, handrails, a balance structure, a bottom plate, and a ball joint mechanism;

[0009] The frame is installed on the bottom plate, a handrail is installed at the front end of the frame, the treadmill body is placed in the frame and has no contact with the frame, and four balance structures are arranged between the treadmill body and the frame, and the four balance structures are distributed in a rectangular shape;

[0010] The measuring end of the balance structure is connected to the treadmill body through a ball joint mechanism, and the mounting end of the balance structure is fixed on the frame.

[0011] Furthermore: the bottom plate is provided with leveling screws and glue injection holes.

[0012] Furthermore: a connection block is installed on the top surface of the bottom plate, a positioning pin hole is provided on the connection block, a cone pin adapter is provided below the frame, and the positioning pin hole matches the cone pin adapter.

[0013] Furthermore: a bellows is sheathed on the outside of the balance structure, and the bellows is connected to the measuring end and the installation end of the balance structure.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention adopts three-component strain balance measurement, which can accurately obtain the three-directional force and moment component data, and obtain the COP trajectory during the movement process based on the data.

[0016] 2. The present invention adopts a three-component strain balance, which has high measurement accuracy, small crosstalk and no drift in each dimension, and can systematically process analog signals into digital signals for transmission and communication without being interfered by the outside world.

[0017] 3. The present invention has excellent linearity and sensitivity in the force measurement process, maintains long-term stability within an extremely wide measurement range, can accurately measure each rapid action, has high resolution and reliability, has high sensitivity, strong overload resistance, long service life and no aging.

[0018] 4. The present invention reduces the equipment detection cost and the maintenance difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structural diagram of the present invention;

[0020] Figure 2It is the position relationship diagram of the frame and the balance structure;

[0021] Figure 3 It is a three-dimensional picture of the base plate;

[0022] Figure 4 Schematic diagram of the balance structure.

[0023] In the figure: 1- treadmill body, 2- frame, 3- handrail, 4- balance structure, 5- base plate, 6- connecting block, 7- leveling screw, 8- glue injection hole, 9- ball joint mechanism, 10- bellows. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] In the present application, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "back", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0027] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0028] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Embodiment: A treadmill with a force measurement function in this embodiment includes a treadmill body 1, a frame 2, an armrest 3, a balance structure 4, a bottom plate 5, and a ball joint mechanism 9;

[0032] The frame 2 is installed on the bottom plate 5, a handrail 3 is installed at the front end of the frame 2, the treadmill body 1 is placed in the frame 2 and has no contact with the frame 2, four balance structures 4 are arranged between the treadmill body 1 and the frame 2, and the four balance structures 4 are distributed in a rectangular shape;

[0033] The measuring end of the balance structure 4 is connected to the treadmill body 1 through a ball joint mechanism 9 , and the mounting end of the balance structure 4 is fixed on the frame 2 .

[0034] More specifically: the balance structure 4 is externally sheathed with a bellows 10 , which is connected to the measuring end and the mounting end of the balance structure 4 for protecting the balance, and the protection grade can reach IP68.

[0035] More specifically: a connecting block 6 is installed on the top surface of the base plate 5, a positioning pin hole is provided on the connecting block 6, a cone pin adapter is provided under the frame 2, and the positioning pin hole cooperates with the cone pin adapter to facilitate the installation of the treadmill.

[0036] More specifically: the base plate 5 is provided with a leveling screw 7 and a glue injection hole 8. During installation, the base plate 5 is leveled by the leveling screw 7 to reduce the requirements for the ground, and then glue is injected through the glue injection hole 8 and around the base plate 5 to facilitate disassembly and assembly while stabilizing the treadmill to avoid the influence of vibration during exercise on the measurement. The base plate 5 is fixed to the ground to eliminate the influence of uneven ground on the ergometer.

[0037] More specifically: the function of the ball joint mechanism 9 is to eliminate the influence of installation on force measurement.

[0038] More specifically: the treadmill body 1 has a certain rigidity to avoid vibration during exercise that affects the measurement of the balance, and there is also a weight limit, which cannot be overweight.

[0039] More specifically: the balance structure 4 uses a three-component strain balance, which is used to measure the force of the foot on the running belt during running, and then analyze the running posture and state. Four three-component strain balances can be interchangeable and replaced individually.

[0040] More specifically: the frame 2 is a mounting carrier of the three-component strain balance, has a large mass and rigidity, and ensures the accuracy of the three-component strain balance measurement.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. As long as there is no structural conflict, the various features in the specific implementation methods disclosed in this application can be combined with each other in any way, and the essence of the corresponding technical solutions will not deviate from the scope of the technical solutions of the present invention.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A treadmill with a force measurement function, characterized in that: It comprises a treadmill body (1), a frame (2), handrails (3), a balance structure (4), a bottom plate (5), and a ball joint mechanism (9); The frame (2) is mounted on a bottom plate (5), a handrail (3) is mounted on the front end of the frame (2), the treadmill body (1) is placed inside the frame (2) and has no contact with the frame (2), four balance structures (4) are arranged between the treadmill body (1) and the frame (2), and the four balance structures (4) are distributed in a rectangular shape; The measuring end of the balance structure (4) is connected to the treadmill body (1) via a ball joint mechanism (9), and the mounting end of the balance structure (4) is fixed on the frame (2).

2. A treadmill with force measurement function according to claim 1, characterized in that: The bottom plate (5) is provided with a leveling screw (7) and a glue injection hole (8).

3. A treadmill with force measurement function according to claim 1, characterized in that: A connection block (6) is installed on the top surface of the bottom plate (5), and a positioning pin hole is provided on the connection block (6). A cone pin adapter is provided below the frame (2), and the positioning pin hole matches the cone pin adapter.

4. A treadmill with force measurement function according to claim 1, characterized in that: The balance structure (4) is externally sheathed with a bellows (10), which is connected to the measuring end and the installation end of the balance structure (4).

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