A method of running exercise for protecting leg joints from injury and a running apparatus therefor

Abstract

The present application relates to a kind of body-building exercise method and its body-building exercise supplies.Running exercise is the most convenient, economic mass body-building exercise method of people daily body-building exercise, however, for the middle-aged and old people and the crowd with greater weight, ordinary running movement is greatly damaged to knee joint.The running exercise method provided by the present application is that the human body is supported on the back of the running equipment, the angle between the axis of the runner and the horizontal plane is controlled at 5°-80°, and the angle between the running track of the running machine and the horizontal plane is set to 30°-75°.The running equipment is composed of a base, a support mechanism, a supporting frame mechanism and a gravity balance system, or by a base, a support mechanism, an upper hanger mechanism, a lower hanger mechanism and a gravity balance system.The product of the present application is more suitable for the middle-aged and old people and obese personnel who need to pay attention to protect leg joint, and is also suitable for personnel with waist disease to run and exercise.

Description

Technical Field

[0001] This invention relates to a fitness exercise method and fitness exercise products, and in particular to a running exercise method and running equipment that protects leg joints from injury. Background Technology

[0002] Running is a convenient, economical, and effective form of exercise for most people. However, for middle-aged and elderly individuals, regular road running and treadmill running can cause significant damage to the knee joints. During running, the feet constantly impact the ground, and the knees and ankles bear not only the body's weight but also the impact of the ground. This poses an even higher risk of knee injury for overweight individuals. Therefore, regular running is unsuitable for middle-aged and elderly people, as well as obese individuals.

[0003] In existing treadmill technology, the improvements made to reduce knee joint damage during running mainly involve two aspects: firstly, increasing the elasticity between the treadmill base and the ground; and secondly, enhancing the elasticity of the treadmill running board itself to mitigate the impact on the user's knee joint. However, for middle-aged and elderly people and obese individuals, existing treadmill technology still cannot completely eliminate the impact and adverse effects on the legs, especially the knee joint and spine, during running. Summary of the Invention

[0004] The objectives of this invention are twofold: first, to provide a running method that can significantly reduce the pressure on the legs and spine when running on a treadmill; and second, to provide a running device that complements this running method.

[0005] This invention is implemented in the following ways:

[0006] Let θ be the angle between the treadmill track and the horizontal plane, β be the angle between the runner's axis of rotation and the horizontal plane, α be the angle between the axis of rotation and the vertical line to the ground, and δ be the angle between the axis of rotation and the treadmill track. The running exercise method to protect the leg joints from injury is as follows: set the angle between the treadmill track and the horizontal plane to θ = 30°-75°, the runner's back presses on the support of the running equipment, the angle between the axis of rotation or the upper plane of the support and the horizontal plane is set to β = 5°-80°, and the angle between the axis of rotation or the upper plane of the support and the treadmill track is set to δ = 70°-100°, preferably δ = 80°-90°. Let the weight of the human body be W, the component of weight W along the upper plane of the support be Fx, and the normal force of weight W on the support be Fy. Then the pressure of the human legs on the treadmill, that is, the component of human weight W along the upper plane of the support, Fx = W·cosα = W·sinβ. Therefore, it can be seen that, with the human back supported, by adjusting the angle β between the human body's axis and the horizontal plane, and by adjusting the angle θ between the treadmill and the horizontal plane, the impact on the legs and spine when running on a treadmill can be reduced.

[0007] The running equipment designed to protect leg joints from injury offers two options:

[0008] Option 1 is a support structure, which consists of a base, a support mechanism, a support frame mechanism, and a gravity balance system. The support mechanism consists of a treadmill frame, a treadmill, a support rod, and a gas spring. The lower end of the treadmill support is hinged to the base. A gas spring is installed between the middle of the lower side of the treadmill support and the base. The treadmill is fixed to the upper side of the treadmill support. The support mechanism is connected to an electric push rod, a hydraulic cylinder, or a pneumatic cylinder via a hinge between the middle of the lower side of the treadmill support and the base to achieve automatic control of the treadmill support. The support frame mechanism consists of a bracket, a support body, a gas spring, and a support rod. The lower end of the bracket is hinged to the base of the running equipment, or to the lower end of the treadmill support. A gas spring is installed between one side of the treadmill support and the middle of the bracket. A bracket crossbar is located above the bracket, and a support body is located above the bracket crossbar. The bracket crossbar and the support body are hinged by a pivot pin. The middle of the bracket is hinged to an adjustable-length support rod, or an electric push rod, a hydraulic cylinder, or a pneumatic cylinder is connected to the middle of the bracket and the base via a hinge to achieve automatic folding and control of the bracket.

[0009] Option 2 is a cable-stayed structure, consisting of a base, a support mechanism, an upper suspension mechanism, a lower suspension mechanism, and a gravity balance system. This option is based on Option 1, but eliminates the supporting structure. A suspension frame is added above the treadmill support, hinged to either the treadmill support or the base. An angle-positioning support is provided near the hinge between the suspension frame and the treadmill support. A cable is attached to the upper end of the suspension frame, and a suspension body is attached to the lower end of the cable. The suspension body wraps around the lower back and sides of the torso. A pull rope is attached between the upper part of the support frame and the suspension body. Option 2 is a simplified cable-stayed structure that eliminates the lower suspension mechanism. It consists of a base, a support mechanism, an upper suspension mechanism, and a gravity balance system. The simplified cable-stayed structure eliminates the support frame, the pull rope above the support frame, the gas spring, and the second support rod.

[0010] The support body consists of three main parts: a support mechanism, a safety mechanism, and a head support mechanism.

[0011] The supporting mechanism has left-right rotation, left-right swing, up-down swing, and forward-backward movement functions. This invention divides these functions into three functional areas: the first, second, and third functional areas. The first functional area is further divided into 1-3 unit bodies. The supporting mechanism has four structural designs:

[0012] Scheme 1 for the support mechanism has a first functional area with left-right rotation and forward-backward movement functions. The first functional area has 1-3 unit bodies, each consisting of a support plate and a guide post and guide sleeve mechanism. The guide post and guide sleeve mechanism is a product already available on the market. The guide sleeve, together with the support plate, can rotate left and right around the guide post as the axis and can move axially along the guide post. Each unit body uses its own independent guide post and guide sleeve mechanism. The base plate of each unit body is fixed to the left and right swinging body with adjusting screws. The forward and backward position of the unit body on the left and right swinging body can be adjusted by adjusting the screws.

[0013] In Scheme 1 of the support mechanism, each unit may use a common guide shaft. The guide shaft of each unit is a hollow tube structure, and the hollow guide shaft is sleeved on the common guide shaft. The two ends of the guide shaft are fixed to the left and right swinging bodies with shaft seats.

[0014] Between the support plate and the base plate of the unit, a pair of spring columns are provided on each side of the guide column. The lower end of the spring column is hinged to the base plate, and the upper end of the spring column is equipped with a roller. The roller can roll in the raceway on the lower side of the support plate. The function of the spring column is to ensure that the support plate can only rotate left and right around the guide column within a limited range.

[0015] The second functional area of ​​the supporting mechanism scheme one has a left-right swinging function. The second functional area includes a left-right swinging body and a right-down swinging body. The left-right swinging body is above the right-down swinging body. At the front end of both the left-right and right-right swinging bodies, there is a sliding joint and a rotary joint. The sliding joint consists of a slider and a guide rail, with both ends of the guide rail fixed to the base plate at the front end of the right-down swinging body. The sliding joint allows the left-right swinging body to move left and right relative to the right-down swinging body. A rotary joint is located above the slider and between it and the left-right swinging body. A rotary shaft equipped with a thrust bearing is located on the left-right swinging body, allowing it to swing left and right relative to the right-down swinging body about the rotary shaft. At least two rollers are located between the rear end of the left-right swinging body and the base plate at the rear end of the right-down swinging body. Because the front end of the left-right swinging body has a sliding joint and a rotary joint, the left-right swinging body can swing left and right relative to the right-down swinging body at both the front and rear ends.

[0016] The third functional area of ​​the support mechanism scheme one has an up-and-down swing function. The third functional area is equipped with an up-and-down swing body, and the lower middle part of the up-and-down swing body is hinged to the crossbar of the running equipment bracket.

[0017] Option two for the support mechanism: The first functional area of ​​option two has left and right rotation capabilities. The first functional area also has 1-3 unit bodies. The longitudinal distance between the three unit bodies is controlled by adjusting the length of the ropes between adjacent unit bodies, or by using adjusting bolts. The structures of the three unit bodies are identical. Each unit body includes a support plate or frame, bearing seats, a rotating shaft, bearings, and bearing seats. Two bearing seats are fixed integrally with the support plate on its underside. The bearing seats are sleeved on the rotating shaft, and bearings are installed at both ends of the rotating shaft. The bearings are installed in the bearing seats on the left and right moving parts. The support plate, the two bearing seats, and the rotating shaft as a whole can rotate left and right.

[0018] The second functional area of ​​the supporting mechanism scheme two has left and right movement, forward and backward movement and left and right swinging functions. The second functional area is provided with a left and right moving body, a planar guide rail, a base plate, a longitudinal slider and a longitudinal guide rail. On the left and right moving body, a bidirectional planar guide rail is installed on each of its front and rear sides. The left and right moving body moves left and right relative to the base plate through the bidirectional planar guide rail. The base plate is set on the longitudinal slider. The longitudinal guide rail is installed on the up and down swinging body. The base plate installed on the slider can move linearly along the longitudinal guide rail.

[0019] The third functional area of ​​the supporting mechanism scheme 2 has an up-and-down swing function, and the structure of the third functional area is the same as that of the third functional area of ​​scheme 1.

[0020] Option 3, the supporting structure, has the same functions in each functional area as the corresponding functional areas in Option 2. The main difference in structure between Option 3 and Option 2 is in the second functional area; the structures of the first and third functional areas are the same as those in Option 2.

[0021] The second functional area of ​​the third scheme includes a planar movable body, a central positioning shaft, a ball retainer, a retainer base, and side baffles. The first functional area component is located above the planar movable body. A ball retainer is provided between the lower side of the planar movable body and the upper side of the retainer base. The planar movable body can move in a planar manner relative to the retainer base. A positioning shaft is provided at the center of the planar movable body. A central hole is provided on the retainer base. The positioning shaft is limited to moving within the central hole of the retainer base. A retaining ring is provided at the lower end of the positioning shaft. The outer diameter of the retaining ring is larger than the diameter of the central hole of the retainer base.

[0022] Support mechanism scheme four is a variation and extension of support mechanism schemes one, two and three. It adjusts the order of the three functional areas of schemes one, two and three from top to bottom. Each scheme can be transformed into at least five extended schemes.

[0023] The safety mechanism of the support body is installed on the support plate or frame of any unit of the support mechanism. The safety mechanism can automatically fix the runner's body. The safety mechanism consists of a pressure plate, a sector gear, an upper clamping bar, a lower clamping bar, a pressure rod, and a return spring. There is a sector gear on the left and right sides of the front end of the support plate of the support mechanism. When the back of the human body touches the pressure plate, the pressure plate pushes the sector gear to rotate through the pressure rod, which drives the lower clamping bar and the upper clamping bar, which are integrated with the sector gear, to rotate towards the center of the human body. At the same time, the clamping bars on both sides clamp towards the center of the body. The sector gear of the safety mechanism can be replaced by a rotating arm, and its working process is the same as that of the safety mechanism with a sector gear.

[0024] The head support mechanism of the support body is located at the front end of the support mechanism. The head support mechanism consists of a head bracket and an elastic support part. The elastic support part causes the head bracket to generate a counterclockwise torque against the weight of the human head. The head bracket and the plate transition strip are hinged by a pivot pin, and the head bracket can rotate up and down. Alternatively, the head bracket can be connected to the plate transition strip through a universal joint, in which case the head bracket can rotate up and down and swing left and right.

[0025] The gravity balance system of the running equipment consists of three parts: a leg support mechanism, a counterweight mechanism, and a braking mechanism. The rotation center of the leg support mechanism is the mechanical rotation center of the human femur. The balancing torque of the counterweight mechanism is equal to or less than the torque generated by the weight of the human leg on the leg support mechanism. The gravity balance system is available in two schemes based on the set position of the leg support mechanism: an upper fulcrum structure and a lower fulcrum structure.

[0026] Gravity Balance System Option 1: This option features an upper fulcrum structure for the leg support mechanism. This upper fulcrum structure consists of side supports, inner and outer leg support tubes, and a leg support body. The side supports are installed on the left and right sides of the running equipment bracket, with the leg support mechanism located at the upper end of the side supports. The counterweight mechanism is mounted on the side supports and consists of inner and outer balance arm tubes and a counterweight. The outer balance arm tube and the outer leg support tube are an integral structure, rotating simultaneously around a common pivot pin. Alternatively, the counterweight mechanism can be a lower-mounted structure, mounted on the base of the running equipment. At the pivot pin of the outer leg support tube, a wheel or sprocket is fixed integrally with the outer leg support tube. The outer balance arm tube is hinged to a hinge seat on the running equipment base via a pivot pin, and a rotating wheel fixed integrally with the outer balance arm tube is located at the pivot pin position. The upper and lower wheels are connected by ropes or chains via a transition wheel or sprocket between two rotating wheels. Alternatively, the transition wheel can be omitted, and the two rotating wheels or sprockets can be directly connected by ropes or chains. The preferred braking mechanism is located between the counterweight mechanism and the side support. The braking mechanism includes a pull rod, two springs, and a sliding sleeve. The upper end of the pull rod is hinged to the lower side of the outer tube of the counterweight mechanism via a pin. A sliding sleeve is fitted onto the pull rod in the middle, and the sliding sleeve is hinged to a sliding sleeve support on the side support via a pin. Spring 1 and Spring 2 are fitted onto the upper and lower sections of the sliding sleeve on the pull rod, respectively. A secondary alternative is to locate the braking mechanism on one side of the leg support mechanism, specifically between the outer tube of the leg support and the inner tube of the side support. The pull rod of the braking mechanism can be an arc-shaped pull rod, with one end hinged to the base and the sliding sleeve in the middle of the arc-shaped pull rod hinged to the outer tube of the balance arm.

[0027] Scheme 2 for the gravity balance system features a lower fulcrum leg support mechanism. This mechanism comprises a circular arc guide rail, a slider, a leg support rod, and a leg-shaped support body. The first circular arc guide rail is located below the support body and fixed to the crossbar of the bracket. One end of the leg support rod is fixed to the first slider, and the other end points towards the lower side of the thigh. The leg support body is a contoured support structure. The counterweight mechanism in this scheme is a circular arc guide rail counterweight mechanism, consisting of a second circular arc guide rail, a second slider, a transition wheel, a guide wheel, an angle positioning support, and a rope. The second circular arc guide rail is hinged to the first. A rope, one end of which is fixed to the first slider, runs along the first circular arc guide rail, through the transition wheel and guide wheel, and is fixedly connected to the second slider along the second circular arc guide rail. A counterweight is fixed on the second slider. An angle positioning support is provided between the second circular arc guide rail and the crossbar of the bracket. Alternatively, the counterweight mechanism in Scheme 2 for the gravity balance system may be a circular arc rocker arm. The structure consists of an arc-shaped rocker arm, a counterweight, a braking mechanism, a transition wheel, a second transition wheel, and a rope. The pivot pin of the arc-shaped rocker arm is located on the base of the running equipment or at the lower end of the upright. The upright is fixed to the base, and the upper end of the upright has a second transition wheel. The upper end of the arc-shaped rocker arm has an arc ring, on which a counterweight is placed. A rope, one end of which is fixed to a slider, runs along the arc-shaped guide rail, passing through the transition wheel and the second transition wheel, and is fixed at the front end of the arc ring. A braking mechanism is provided between the arc-shaped rocker arm and the base. Alternatively, the counterweight mechanism in Scheme Two may be a combined spring structure, consisting of a set of main spring rods and at least one set of auxiliary spring rods. The spring fulcrum of the main spring rod is located below the front end of the support body, to the right of the extended radius of the upper stop point of the arc-shaped guide rail; the spring fulcrum of the auxiliary spring rod is located to the left of the spring fulcrum of the main spring rod.

[0028] The running equipment is foldable. When folding, the treadmill frame and the treadmill are lifted upwards together, the bracket is lifted upwards, and the support rod one and support rod two are folded inwards.

[0029] The beneficial effects of this invention are as follows: Because the running method employs an inclined trajectory, the body's weight is distributed through the support body into two components: a force parallel to the upper plane of the support body and a normal pressure exerted on the support body. This significantly reduces the pressure on the legs during running, thus protecting the leg joints, especially the knee joints. Furthermore, since this running method involves both forward and upward movement of the legs, the runner needs to continuously overcome the force of gravity. Therefore, this method requires the legs to perform more work than ordinary running, resulting in better fitness training effects. This invention is particularly suitable for middle-aged and elderly people who need to protect their leg joints, as well as obese individuals. It is also suitable for those with lower back problems, such as lumbar disc herniation, to use for running exercise. Attached Figure Description

[0030] Figure 1 : A schematic diagram illustrating the principle of the running method of this invention.

[0031] Figure 2 : Schematic diagram of a running device scheme that is compatible with the running method of the present invention.

[0032] Figure 3 : Schematic diagram of an automatic support frame for a running device that is compatible with the running method of the present invention.

[0033] Figure 4 : Schematic diagram of the running device scheme two that is compatible with the running method of the present invention.

[0034] Figure 5 : Simplified structural principle diagram of running equipment scheme two that is compatible with the running method of the present invention.

[0035] Figure 6 Schematic diagram of a three-dimensional coordinate system.

[0036] Figure 7 Scheme 1 for the supporting mechanism: The first functional area of ​​the three functional areas has a single unit.

[0037] Figure 8 Scheme 1 for the supporting mechanism: The first functional area of ​​the three functional areas has two unit bodies.

[0038] Figure 9 Scheme 1 for the supporting mechanism: The first functional area of ​​the three functional areas has three unit bodies.

[0039] Figure 10 Structural diagram of the supporting mechanism scheme 1.

[0040] Figure 11 : Figure 10 Sectional view of AA.

[0041] Figure 12 : Figure 10 View from direction B in the middle.

[0042] Figure 13 Scheme 1 for the support mechanism uses a common guide column shaft structure diagram for each unit.

[0043] Figure 14 : Structural diagram of the second functional area in Scheme 1 of the supporting mechanism.

[0044] Figure 15 : Figure 14 Enlarged cross-sectional view of the middle DD section.

[0045] Figure 16 : Figure 14 Cross-sectional view of EE.

[0046] Figure 17 : Functional area distribution and structural diagram of the supporting mechanism scheme 2.

[0047] Figure 18 : Distribution and structure diagram of functional areas of the supporting mechanism scheme 3.

[0048] Figure 19 : Figure 18 Cross-sectional view of KK.

[0049] Figure 20 Example diagram of the deformation and extension scheme obtained after adjusting the order of the three functional areas in Scheme 4 of the supporting mechanism.

[0050] Figure 21 : Front view of the support body safety mechanism scheme 1.

[0051] Figure 22 Left view of the support structure safety mechanism scheme 1.

[0052] Figure 23 : Schematic diagram of the support safety mechanism clamping a human body.

[0053] Figure 24 Schematic diagram of the second scheme for the support body safety mechanism.

[0054] Figure 25 Schematic diagram of spring sleeve type head support mechanism.

[0055] Figure 25-1 Schematic diagram of torsion spring head support mechanism.

[0056] Figure 26 Schematic diagram of a tension spring type head support mechanism.

[0057] Figure 27 Schematic diagram of rocker arm head support mechanism.

[0058] Figure 28 Structural diagram of gravity balance system scheme 1 (upper fulcrum type).

[0059] Figure 29 : Figure 28 A magnified view of a partial gravity equilibrium system.

[0060] Figure 30 Structural diagram of gravity balance system scheme one (with a bottom-mounted counterweight mechanism)

[0061] Figure 31 Structural diagram of gravity balance system scheme two (lower fulcrum type).

[0062] Figure 32 Figure 2: Gravity balance system scheme (circular arc rocker arm counterweight mechanism).

[0063] Figure 33 : Gravity balance system scheme two (combined spring counterweight mechanism) diagram

[0064] Figure 34 : Schematic diagram of the folding mechanism of the running device of the present invention. Detailed Implementation

[0065] Figure 1 This is a schematic diagram of the running exercise method described in the invention. The angle between the running track plane 1 and the horizontal plane 6 of the treadmill is set to θ = 30°-75°. The back of the runner's body is pressed on the support of the running equipment. The angle between the human body axis or the upper plane 5 of the support and the horizontal plane 6 is set to β = 5°-80°. The upper plane of the support refers to the upper plane of the support mechanism plate. When in use, the angle between the upper plane 5 of the support mechanism and the running track plane 1 of the treadmill is set to δ = 70°-100°, preferably δ = 80°-90°. When in use, assuming θ = 65°, and the angle between the human body's axis or the upper plane 5 of the support mechanism and the treadmill track is assumed to be δ = 85°, then the angle between the human body's axis and the horizontal plane is β = 30°. Assuming the human body weight W is 80 kg, and the center of gravity 2 of the human body weight is pressed on the support 4, then the actual pressure of the human body weight transmitted through the legs to the treadmill track is Fx = 80·sinβ = 80·sin30° = 40 kg. That is, the actual pressure of the human legs on the treadmill track is 1 / 2 of the human body weight, thus protecting the leg joints, especially the knee joints, for the runner.

[0066] The running equipment described above, designed to complement running methods that protect leg joints, has two options:

[0067] Running equipment option one, Figure 2 , Figure 3 The running device shown is a support structure, which consists of a base 16, a support mechanism, a support frame mechanism, and a gravity balance system.

[0068] The support mechanism consists of a treadmill frame 9, a treadmill 10, a support rod 7, and a gas spring 17. Both the base 16 and the treadmill frame 9 are rectangular structures. The lower end of the treadmill frame 9 is hinged to the base 16 via a pivot pin 15. A gas spring 17 is located between the middle of the lower side of the treadmill frame 9 and the base 16. The treadmill 10 is fixed to the upper side of the treadmill frame 9. The lower side of the treadmill frame 9 is hinged to an adjustable-length support rod 7 via a pivot pin 8. An angle positioning support 7a is located near the pivot pin 8 between the treadmill frame 9 and the support rod 7 to fix the position of the support rod 7. The angle positioning support rod is a commercially available tension spring type double-hinged rod structure. Figure 3 In this design, the support mechanism is an automatic support structure. The hydraulic cylinder 17a, or a pneumatic cylinder or an electric push rod, is connected to the base 16 via a hinge at the middle of the lower side of the treadmill support 9. At the same time, the support rod 7 and the gas spring 17 are eliminated to achieve automatic control of the angle between the treadmill support 9 and the base 16.

[0069] The support frame mechanism consists of a bracket 14, a support body 4, a gas spring 11, and a second support rod 13. The lower end of the bracket 14 is hinged to the base 16, or to the lower end of the treadmill support 9. A gas spring 11 is provided between one side of the treadmill support and the middle of the bracket. The middle of the bracket is hinged to the adjustable-length support rod 13 via a second pivot pin 13b. Above the bracket 14 is a bracket crossbar 14a, and above the bracket crossbar 14a is the support body 4. The bracket crossbar 14a and the support body 4 are hinged via a fourth pivot pin 12. Figure 3 In this design, the supporting mechanism is an automatic supporting mechanism. An electric push rod 17b, or a hydraulic cylinder or a pneumatic cylinder, is connected to the middle of the bracket 14 and the base 16 via a hinge. At the same time, the support rod 13 and the gas spring 11 in the first scheme are eliminated to achieve automatic control of the angle between the bracket 14 and the base 16. When using this improved scheme, the length of the base 16 needs to be increased to improve the stability of the entire running device, or an inner tube 16g can be set inside the tube of the base 16 to form an adjustable inner and outer tube telescopic structure. An angle positioning support 13a is provided at one end of the bracket 14 and the support rod 13 near the axle pin 13b. The angle positioning supports 1 and 2 have the same structure.

[0070] Figure 4 , Figure 5 Option 2 for the running equipment is a suspension structure, consisting of a base 16, a support mechanism, an upper suspension mechanism, a lower suspension mechanism, and a gravity balance system. The support mechanism of this option has the same characteristics as that of Option 1.

[0071] The upper suspension mechanism of the running equipment scheme 2 consists of a suspension frame 19, a suspension cable 20, and a suspension body 22. A suspension frame 19 is provided above the treadmill support 9 and is hinged to the treadmill support. An angle positioning support 3 18 is provided between the suspension frame 19 and the treadmill support 9 near the hinge. The upper end of the suspension frame 19 is attached to the suspension cable 20, and the lower end of the suspension cable is attached to the suspension body 22. The suspension body wraps around the lower back and sides of the human torso to support the weight of the human torso. The suspension body is made of soft material. The suspension body or the part in contact with the back and waist of the human torso uses a base plate 23. The base plate 23 is made of hard board material, and the sides of the human torso are made of soft material.

[0072] The lower suspension mechanism of the second running equipment design consists of a bracket 14, a second support rod 13, a gas spring 11, and a pull rope 21. The pull rope 21, or a spring or elastic strip, is attached between the bracket 14 and the suspension body 22. In this suspended running equipment, the suspension body wraps around and suspends the torso, with the body's axis at an angle of 5°-80° to the horizontal plane. The user runs on a treadmill tilted at 30°-75° to the horizontal. While the suspended structure is simple, its performance and comfort are inferior to the supported structure.

[0073] Option 2 for the running equipment is a simplified cable-stayed structure, consisting of a base 16, a support mechanism, an upper suspension mechanism, and a gravity balance system. It eliminates the bracket 14, pull rope 21, gas spring 11, and support rod 13 from Option 2, while achieving the same performance.

[0074] Because different parts of the body rotate and shift to varying degrees during running, when running on a running device, in addition to the fact that the direction of the body's forward movement does not change relative to the ground, the body will also rotate and swing left and right, swing up and down, and move forward and backward. If a fixed support is used to support the torso, the body will be restricted while running, making people feel uncomfortable and unnatural. Therefore, the support 4 in the first running device scheme is required to have the functions of rotating left and right, swinging left and right, swinging up and down, and moving forward and backward. As for the second scheme, since the suspension structure 22 that wraps around the torso uses a cable suspension structure, the suspension body has all the functions of rotating left and right, swinging up and down, and moving forward and backward.

[0075] The support body 4 consists of three parts: a support mechanism, a safety mechanism, and a head support mechanism.

[0076] Figure 6 To describe the three-dimensional coordinate system established in this invention, the following coordinate system is established based on the actual angle direction of the upper plane of the supporting mechanism during use: the length direction of the supporting mechanism is the X-axis, the positive direction of the X-axis is the upward direction of the supporting mechanism, the width direction of the supporting mechanism is the Y-axis, and the direction perpendicular to the XY plane is the Z-axis. The origin O of the X, Y, and Z axes is set at the center of the upper plane of the supporting mechanism. The left and right rotation of the supporting mechanism refers to rotation around the X-axis, as shown in the dd direction in the figure. The left and right swing refers to left and right movement on the XY plane, as shown in the bb direction in the figure. The left and right movement amplitudes of the upper and lower ends of the supporting mechanism can be different. The up and down swing refers to rotation around the Y-axis, as shown in the ee direction in the figure. The forward and backward movement refers to movement along the X-axis, as shown in the aa direction in the figure.

[0077] The left-right rotation, left-right swing, up-down swing, and forward-backward movement functions of the support body are all implemented by the support mechanism. The above functions of the support mechanism are contained in three functional areas, namely the first, second, and third functional areas. The following four implementation schemes are listed to illustrate the function and structural features of the support mechanism:

[0078] Option 1 for the supporting institution Figure 7 , Figure 8 and Figure 9 The supporting mechanism in Scheme 1 comprises three functional areas: a first functional area 24, which has left-right rotation and forward-backward movement functions; a second functional area 25, which has left-right swinging functions; and a third functional area 26, which has up-down swinging functions. The first, second, and third functional areas are arranged in order from top to bottom. Figure 7 The first functional area 24 has a unit 27. Figure 8 The first functional area 24 has two units, Unit 1 27 and Unit 3 29, arranged in sequence along the X-axis, corresponding to the lower and upper sections of the human back, respectively. Figure 9 The first functional area 24 has three units arranged in sequence along the X-axis: Unit 1 27, Unit 2 28, and Unit 3 29, which correspond to the lower, middle, and upper sections of the human back, respectively. The structures of each unit are the same.

[0079] Figure 10 The structural diagram of the support mechanism scheme 1 is divided into three functional areas: a first functional area 24, a second functional area 25, and a third functional area 26. The first functional area 24 comprises three units: unit 1 27, unit 2 28, and unit 3 29. All three units have identical structures. Unit 1 27 consists of a support plate 27a or frame, a guide sleeve 27f, a ball retainer 27d, a return spring 27c, a guide post 30, a guide post seat 1 33c, and a guide post seat 2 33d. A guide sleeve 27f, integrally fixed to the support plate, is provided on the lower side of the support plate 27a or frame. Figure 11 It can be seen that a pad 27q is provided between the guide sleeve 27f and the support plate 27a, and is fixed with a U-shaped screw 27b. The guide sleeve 27f, the steel ball retainer 27d, the return spring 27c, and the guide post 30 form a universal guide post and guide sleeve mechanism. The guide post 30 is a fixed part. The guide sleeve 27f, together with the support plate 27a, can rotate left and right around the guide post 30 as the axis, and can move axially along the guide post 30. The guide post and guide sleeve mechanism of each unit is independent. The guide post seat 1 33c and guide post seat 2 33d at both ends of the guide post are fixed on the base plate 31. The base plate is fixed on the left and right swinging body 33 with adjusting screws 31a. Figure 10 , Figure 12 It can be seen that the position of the unit can be adjusted back and forth along the long groove 33a of the left and right swinging body by adjusting the screw 31a.

[0080] Depend on Figure 13It can be seen that each unit of the supporting mechanism scheme one uses a common guide shaft 30b. The guide column of each unit is a hollow tube structure. The hollow guide column 30a is sleeved on the common guide shaft 30b. That is, the guide columns of unit 1 27, unit 2 28, and unit 3 29 are all hollow tubes, strung on a common guide shaft 30b. The two ends of the guide shaft 30b are fixed to the left and right swinging body 33 with shaft seat 1 31d and shaft seat 2 31f. The distance between each unit is adjusted by the rope 37 fixed at both ends to the adjacent unit, or by setting adjusting bolts between adjacent units to adjust the distance between them.

[0081] Depend on Figure 11 As can be seen, in the first scheme of the support mechanism, a pair of spring columns 27e are provided on both sides of the center line 27s between the support plate 27a and the base plate 31 of the unit. The spring column is composed of an outer tube 27i, an inner tube 27k and a spring 27j. The lower end of the spring column 27e is hinged to the base plate 31 through a pivot pin six 27h. The center line of the pivot pin six 27h is parallel to the X-axis. The upper end of the spring column is equipped with a roller 27p through a pivot pin five 27m. The roller 27p can roll in the raceway 27n on the lower side of the support plate 27a. The direction of the center line of the raceway is parallel to the X-axis. The function of the spring column 27e is to ensure that the support plate 27a can only rotate left and right around the guide column 30 within a limited range.

[0082] Depend on Figure 10 , Figure 14 , Figure 15 It can be seen that the second functional area 25 of the supporting mechanism scheme one includes a left-right swing body 33 and a right-down swing body 32. The left-right swing body 33 is above the right-down swing body 32, with the positive X-axis as its front end. A sliding pair and a rotary pair are provided at the front ends of both the left-right and right-right swing bodies. The sliding pair consists of a slider 33m and a guide rail 33n. The center line of the guide rail 33n is parallel to the Y-axis, and both ends of the guide rail 33n are fixed to the base plate 32b at the front end of the right-down swing body 32. A thrust bearing 33g is provided above the slider 33m and between it and the left-right swing body 33. The thrust bearing 33g is mounted on a rotary shaft 33f, and the center line of the rotary shaft 33f passes through the center line of the sliding guide rail 33n and is parallel to the Z-axis. Figure 14 , Figure 16 It can be seen that at least two rollers 33e are provided between the rear end of the left-right swing body 33 and the base plate 32a of the rear end of the up-down swing body 32, and the roller seats 33k are installed on the left-right swing body 33 or the base plate 32a of the up-down swing body. In this way, the left-right swing body can move left and right relative to the up-down swing body at both the front and rear ends.

[0083] exist Figure 10The third functional area 26 of the support mechanism scheme 1 described above is provided with an up-and-down swing body 32. The lower middle part of the up-and-down swing body 32 is hinged to the bracket crossbar 14a of the running equipment through a pivot pin 12. Organic elastic bodies 14c or springs are provided at both ends of the bracket crossbar 14a to ensure that the up-and-down swing body 32 can only swing up and down within a limited range.

[0084] Figure 17 The diagram shows the functional area distribution and structure of Scheme 2 for the supporting mechanism. Scheme 2 also has three functional areas: the first functional area 24b, which has left and right rotation function; the second functional area 25b, which has left and right movement, forward and backward movement, and left and right swinging function; and the third functional area 26b, which has up and down swinging function. The first, second, and third functional areas are arranged in order from top to bottom.

[0085] The first functional area 24b of the second supporting mechanism is also provided with unit body 1 34, unit body 2 35 and unit body 36 in the X-axis direction. The longitudinal distance between the three units is controlled by adjusting the length of the rope 37 between adjacent units, or by adjusting bolts. The structures of the three units are the same.

[0086] Figure 17 In the second scheme of the supporting mechanism, the first functional area 24b unit 34 is provided with a support plate 27a or frame, a first bearing seat 34c, a second bearing seat 34d, a rotating shaft 34e, a bearing 34a and a bearing seat 34b. On the lower side of the support plate 27a, there are first bearing seat 34c and second bearing seat 34d which are fixed to the support plate. The bearing seat is sleeved on the rotating shaft 34e and is fixed or interference-fitted to the rotating shaft. The two ends of the rotating shaft are equipped with bearings 34a, which are installed in the bearing seats 34b on the left and right moving body 38. The support plate 27a, first bearing seat 34c, second bearing seat 34d and the rotating shaft 34e as a whole can rotate left and right.

[0087] Figure 17 The second functional area 25b of the supporting mechanism scheme two described above includes a left-right moving body 38, a planar guide rail 42, a base plate 41, a longitudinal slider 39, and a longitudinal guide rail 40. On the left-right moving body 38, a bidirectional planar guide rail 42 is installed on each of its front and rear sides. The bidirectional planar guide rail 42 is parallel to the Y-axis. The other mounting surface of the planar guide rail is installed on the connecting plate 41a of the base plate 41. The left-right moving body 38 can move left and right relative to the base plate 41 via the planar guide rail 42, i.e., move along the Y-axis. Since each unit can move left and right independently, each unit can complete left-right swinging movements of different amplitudes. The longitudinal slider guide rail mechanism is a standard existing component. The centerline of the longitudinal guide rail 40 is aligned with the X-axis direction. The base plate 41 is located on the longitudinal slider 39. The longitudinal guide rail 40 is installed on the up-down swinging body 32. Since the longitudinal guide rail 40 is aligned with the X-axis direction, the base plate 41 installed on the slider 39 can move linearly along the X-axis direction.

[0088] Figure 17 The structure of the third functional area of ​​the support mechanism in Scheme 2 is the same as that in Scheme 1.

[0089] Figure 18 Option 3 is the supporting institution, and the functions of each functional area in this option are the same as those in Option 2.

[0090] The main difference between the second functional area 25c of the support structure and the second functional area of ​​the support structure is that the structure of the support ...

[0091] The second functional area of ​​the supporting mechanism scheme three includes a planar movable body 49, a central positioning shaft 50, a ball retainer 46, a retainer base 48, and a side baffle 47. The first functional area 24c component is located above the planar movable body 49. The ball retainer 46 is positioned between the lower side of the planar movable body 49 and the upper side of the retainer base 48. The planar movable body 49 can move planarly relative to the retainer base 48. A central positioning shaft 50 is located at the center of the planar movable body 49. The retainer base 48... A central hole 45 is provided, and the central positioning shaft 50 is limited to move within the central hole of the cage base 48. A retaining ring 43 is provided at the lower end of the central positioning shaft 50. The outer diameter of the retaining ring 43 is larger than the diameter of the central hole 45 of the cage base. The retaining ring 43 is installed at the lower end of the central positioning shaft by a bolt 44 with a spring sleeve, and it is blocked on the lower side of the cage base 48. The function of the retaining ring and the spring is to enable the planar moving body 49, the ball cage 46 and the cage base 48 to move relative to each other in the XY plane without separating.

[0092] Figure 20 This is the structural diagram of support mechanism scheme four, which is a variation and extension of support mechanism schemes one, two, and three. Adjusting the order of the three functional areas of schemes one, two, and three from top to bottom will result in different structural combinations. For example, for the support mechanism with a single unit in the first functional area of ​​scheme one, there are five possible extension schemes: ① arranged in the order of first, third, and second functional areas; ② arranged in the order of second, first, and third functional areas; ③ arranged in the order of second, third, and first functional areas; ④ arranged in the order of third, first, and second functional areas; ⑤ arranged in the order of third, second, and first functional areas. Therefore, each of the above support mechanism schemes one, two, and three can be transformed into at least five extension schemes. Figure 20This is a schematic diagram of a new structural scheme formed by arranging the three functional areas of the support mechanism scheme one from top to bottom, namely the first, third and second functional areas. In this improved scheme, the arrangement order of the corresponding structures of the second functional area 25 and the third functional area 26 in scheme one has been changed. The upper and lower swing body 32c at the lower end of the first functional area 24, namely the left and right rotation and forward and backward movement functional area, is hinged to the left and right swing body 33p located on the lower side of the upper and lower swing body 32c by the shaft pin four 12. That is, the upper and lower swing body 32c can swing up and down relative to the left and right swing body 33p with the shaft pin four as the center, and the left and right swing body 33p can swing left and right relative to the lower bracket crossbar 14b.

[0093] Depend on Figure 21 , 22 As can be seen from 23, the safety mechanism is set on the support mechanism. For a support mechanism with one, two or three units, the safety mechanism can be set on the support plate or frame of any unit. The safety mechanism can automatically fix the runner's body. The safety mechanism consists of a pressure plate 26d, a sector gear 26c, an upper clamping bar 26a, a lower clamping bar 26j, a pressure rod 26e, and a return spring 26g. A sector gear 26c is located on the left and right sides of the front end of the support plate 27a in the positive direction. The two sector gears mesh with each other. The center line of the sector gear's pivot pin 26i is parallel to the X-axis. The bearing seats of the left and right sector gears are respectively located on the left and right sides of the support plate 27a or the frame. The upper end of the pressure rod 26e is fixed to the lower side of the pressure plate 26d. The pressure rod has an L-shaped structure, and the bent end of the pressure rod is inserted into the elongated hole 26h of the sector gear. When the back of the human body touches the pressure plate 26d, the pressure plate pushes the sector gear to rotate through the pressure rod, causing the lower clamping bar 26j and the upper clamping bar 26a, which are integrated with the sector gear, to rotate towards the center of the human body. Simultaneously, the clamping bars on both sides clamp the human body 3 towards the center, thus fixing the human body and preventing it from slipping. Each side of the clamping bar has two sections, with a pivot pin 26b between the upper and lower sections. The opening size of the clamping bar is adjusted by the adjusting screw 26k on the clamping bar to accommodate people of different body shapes. The return spring 26g is located below the sector gear, and the two ends of the return spring are hooked onto the extension rod 26p at the lower end of the sector gear or directly hooked onto the lower end of the sector gear.

[0094] Depend on Figure 24 It can be seen that the sector gear of the safety mechanism can be replaced by a rotating arm 26n. The pivot pin 26i of the rotating arm 26n is on the left and right sides of the support plate 27a or the frame. The rotating arm 26n is fixed as a whole with the lower clamping bar 26j on the same side and can rotate around the pivot pin 26i. The other end of the rotating arm 26n is provided with an elongated hole 26h. The bent end of the pressure rod 26e is inserted into the elongated hole 26h of the rotating arm. Its working process is the same as that of the safety mechanism with a sector gear.

[0095] Depend on Figure 25 , Figure 25-1 , Figure 26 and Figure 27 It can be seen that for a support mechanism with one, two, or three unit bodies, the head support mechanism is located at the front end of the support mechanism, that is, at the front end of the uppermost unit body. The head support mechanism consists of a head bracket 56 and an elastic support part. The elastic support part causes the head bracket 56 to generate a counterclockwise torque that resists the weight of the human head. Figure 25 , Figure 25-1 In the middle, a transition strip 53 is provided at the front end of the pallet 3 29a, which is fixed integrally with the pallet 3. The transition strip is hinged to the head bracket 56 by a pivot pin 54, and the head bracket 56 can move up and down; Figure 26 and Figure 27 In the middle, the transition strip 53 is connected to the head bracket 56 through the universal joint 61, and the head bracket 56 can move up and down and swing left and right. Figure 25 A spring sleeve 57 is provided below the head bracket. The front end of the spring sleeve 57 is hinged to the lower side of the head bracket 56, and the rear end of the spring sleeve is hinged to the connecting plate 60 at the lower end of the transition strip 53 or the lower end of the support plate 60 through the shaft pin 11 59. Figure 25-1 The structure is a torsion spring, in which a spring torsion spring 90 is provided on the shaft pin 54 of the head bracket 56; Figure 26 In the middle, a tension spring 65 and a tension spring support rod 64 are provided below the head bracket 56. One end of the tension spring support rod 64 is fixed to the lower end of the connecting plate 60 as a whole, and the other end of the tension spring support rod extends to the lower front end of the head bracket 56. The front end of the tension spring 65 hooks onto the adjusting screw pair 63 at the front end of the tension spring support rod 64, and the rear end of the tension spring hooks onto the lever arm 62 at the lower rear end of the head bracket. Figure 27 In the middle, an L-shaped rocker arm 67 is provided on the lower side of the head bracket 56. The L-shaped rocker arm is hinged to the hinge seat at the rear end of the tension spring support rod by a pivot pin 12 66. The front end of the L-shaped rocker arm is provided with a roller 68, which can roll on the lower side of the head bracket. The front end of the tension spring hooks onto the adjusting screw pair 63 at the front end of the tension spring support rod, and the rear end of the tension spring hooks onto the lower end of the lever arm of the rocker arm 67.

[0096] When using the running equipment, the human body is tilted at a large angle to the ground. At this time, in addition to forward movement, the human legs also have an upward movement component. Due to the weight of their own bodies, the human legs need to do more work than when running on a regular road or on a regular treadmill, and the human legs will feel more strained. In order to reduce the impact of leg gravity on the user, the running equipment is equipped with a human leg gravity balance system.

[0097] Depend on Figure 28It is known that the gravity balance system consists of three parts: a leg support mechanism 69, a counterweight mechanism 71, and a braking mechanism 74. The rotation center of the leg support mechanism is the mechanical rotation center of the human femur. The balancing torque of the counterweight mechanism is equal to or less than the torque generated by the weight of the human leg on the leg support mechanism. The gravity balance system has two schemes according to the position of the leg support mechanism: an upper fulcrum structure and a lower fulcrum structure.

[0098] Gravity balance system scheme one: In this scheme, the leg support mechanism is an upper fulcrum structure, and the rotation center of the leg support mechanism is the mechanical rotation center of the human femur. Figure 28 , Figure 29 The upper support structure consists of a side support 73, a leg support outer tube 69d, a leg support inner tube 69b, and a leg support body 69a. The side support 73 is an adjustable-length inner and outer tube structure. The side support 73 is installed on the left and right sides of the bracket 14. The distance between the left and right side supports should ensure that the arms can swing back and forth without restriction when a person is running. The side support is installed on the upper end of the bracket 14 corresponding to the position between the buttocks and waist of the human body on the support body 4. The position of the side support 73 on the bracket 14 is adjusted by adjusting screw 73a to adjust its front and back position on the bracket. The side support along the Z-axis direction, i.e., the up and down direction, can be adjusted by adjusting screw 73b. The relative position of tube 73c and outer tube 73d is adjusted for height. A leg support mechanism 69 is provided at the upper end of the side bracket 73. The outer tube 69d of the leg support mechanism is hinged to the upper end of the side bracket via a pivot pin 13 69e. The axis of pivot pin 13 69e is parallel to the Y-axis. During use, the position of pivot pin 13 is adjusted to correspond to the mechanical rotation center of the femur of the human thigh. The length of the leg support mechanism is adjusted by adjusting the distance between the outer tube 69d and the inner tube 69b. A leg support body 69a is provided at the front end of the leg support mechanism. The leg support body has a cylindrical structure and supports the lower front of the human thigh. The balancing torque of the counterweight mechanism is equal to or less than the torque generated by the weight of the human leg on the leg support mechanism. Figure 28 In the middle, the counterweight mechanism 71 is an upper fulcrum type structure, in Figure 29 The counterweight mechanism consists of an outer tube 71a of the balance arm, an inner tube 71c of the balance arm, an adjusting screw 71b, and a counterweight 71d. The outer tube 71a of the balance arm and the outer tube 69d of the leg support in the support mechanism are an integral structure. The outer tube of the balance arm and the outer tube of the leg support are centered on the common pivot pin 13 69e, and can rotate around the pivot pin 13 simultaneously. Different people can adjust the magnitude of the balancing torque by adjusting the length between the inner and outer tubes of the balance arm.

[0099] Depend on Figure 30It can be seen that the counterweight mechanism 71 of the gravity balance system scheme one is set on the base 16 of the running equipment. The counterweight mechanism described in this scheme is a lower structure. At the pivot pin 13 69e of the leg support outer tube 69d in the upper pivot support mechanism, there is a first wheel 75 or sprocket fixed to the leg support outer tube 69d. The balance arm outer tube 71a is hinged to the hinge seat 16a on the base 16 through the pivot pin 16 69f. At the position of the pivot pin 16 69f, there is a second wheel 78 or sprocket fixed to the balance arm outer tube 71a. There is a transition wheel 77 between the first wheel and the second wheel. The first wheel 75, the transition wheel 77 and the second wheel 78 are connected by a rope 76 or a chain. By adjusting the length of the rope or chain, the angle of the balance arm is made consistent with the angle of the leg support mechanism 69. The transition wheel 77 can be removed between the first wheel and the second wheel, and the two wheels or sprockets can be directly connected by a rope or chain.

[0100] exist Figure 28 , Figure 29 In this configuration, the braking mechanism 74 is preferably disposed between the counterweight mechanism 71 and the side support 73; or... Figure 30 The braking mechanism is preferably positioned between the counterweight mechanism 71 and the base 16. The braking mechanism includes a pull rod 74c, two springs, and a sliding sleeve 74d. The upper end of the pull rod 74c is hinged to the lower side of the outer tube 71a of the counterweight mechanism via a pivot pin 74a. A sliding sleeve 74d is fitted onto the pull rod in the middle. The sliding sleeve is hinged to a sliding sleeve support on the side bracket via a pivot pin 74e. Spring 74b is fitted on the upper section of the sliding sleeve 74d, and spring 74f is fitted on the lower section of the sliding sleeve. An adjusting nut 74h is located at the upper end of the pull rod, and an adjusting nut 74g is located at the lower end. The braking mechanism is secondarily positioned on one side of the leg support mechanism 69, specifically between the outer tube 69d of the leg support and the inner tube 73c of the side bracket. Figure 30 It can be seen that the lever of the braking mechanism 74 may be an arc lever 79, one end of which is hinged to the hinge seat 16b on the base 16, and the sliding sleeve 74d in the middle of the arc lever is hinged to the outer tube 71a of the balance arm.

[0101] Gravity balance system scheme two: In this scheme, the leg support mechanism is a lower fulcrum structure, and the rotation center of the leg support mechanism is the mechanical rotation center of the human femur. Figure 31It can be seen that the lower fulcrum mechanism consists of an arc guide rail 80, a slider 80a, a leg support rod 80h, and a leg contour support 80i. The arc guide rail 80 is located on the lower side of the support body 4 and is fixed on the bracket crossbar 14a. There is one arc guide rail 80 on each side of the lower side of the support body 4. The center of the arc guide rail 80 is the mechanical rotation center of the human thigh femur. This center varies depending on individual body size. The center of the arc guide rail 80 is taken as the average position of the mechanical rotation center of the human thigh femur. One end of the leg support rod 80h is fixed on the slider 80a, and the other end points to the lower side of the human thigh. The length of the leg support rod 80h is adjusted by adjusting the distance between the inner and outer tubes of the support rod. In addition to the cylindrical support 69a mentioned in the upper fulcrum support system, the leg support also includes... Figure 31 The leg support uses a contoured support body, which is the second technical solution for the leg support body. The contoured leg support body 80i consists of a guide sleeve 80c, an upper base plate 80k, a lower base plate 80e, a contoured support block 80f, and a limiting spring 80g. The guide sleeve 80c is fitted onto the front end of the leg support rod 80h and can slide at the front end of the leg support rod. The lower base plate 80e is fixed to the upper side of the guide sleeve. The contoured support block 80f is fixed to the upper base plate 80k, and the upper base plate 80k and the lower base plate 80e are hinged. There is a limiting spring 80g or an organic elastomer at the front and rear positions between the upper and lower base plates to limit the swing angle of the contoured support block. The contoured support block 80f is made of elastic organic material. Figure 31 It can be seen that the counterweight mechanism of this scheme is a circular arc guide rail counterweight mechanism, which consists of a second circular arc guide rail 81, a second slider 81a, a transition wheel 84, a guide wheel 81b, an angle positioning support 82, and a rope 83. The second circular arc guide rail 81 is hinged to the first circular arc guide rail 80 through a hinge seat 80b. The second circular arc guide rail 81 is also hinged to the bracket 14 or the bracket crossbar 14a. The rope 83, with one end fixed to the first slider 80a, runs along the first circular arc guide rail 81. 0. The transition wheel 84 and guide wheel 81b are used to fix the second arc guide rail 81 and the second slider 81a. The second slider 81a is fixed with a counterweight 81j. The first arc guide rail 80 and the second arc guide rail 81 have the same radius and arc. An angle positioning support 82 is provided between the second arc guide rail 81 and the bracket crossbar 14a. One end of the angle positioning support 82 is hinged to the bracket crossbar 14a, and the other end is hinged to the second arc guide rail 81.

[0102] Figure 32It can be seen that the counterweight mechanism of the gravity balance system scheme two is either an arc rocker arm counterweight mechanism, consisting of an arc rocker arm 86, a counterweight 85, a braking mechanism 74, a transition wheel 84, a second transition wheel 84b, and a rope 83. The rotation pin 1716h of the arc rocker arm 86 is located on the base 16, or at the lower end of the upright 16e. The upright 16e is fixed to the base 16 as a whole. The upper end of the upright 16e is provided with a second transition wheel 84b. The upper end of the arc rocker arm has an arc ring 87, the radius of which is equal to the radius of the arc guide rail 80. The counterweight 85 is provided on the arc rocker arm. The rope 83, one end of which is fixed to the slider 80a, runs along the arc guide rail 80, and is fixed at the front end of the arc ring 87 via the transition wheel 84 and the second transition wheel 84b. Figure 33 It can be seen that the counterweight mechanism of the gravity balance system scheme two may adopt a combined spring counterweight mechanism, which consists of a main spring rod 88 and a secondary spring rod 89. Figure 33 0 is the center of the arc guide rail 80. The main spring rod consists of a compression spring 88b, a spindle 88d, and a sliding sleeve 88a. The compression spring is strung on the spindle, and the front end of the spindle is hinged to the slider 80a. One end of the compression spring 88b presses on the adjusting nut 88c at the front end of the spindle, and the other end presses on the sliding sleeve 88a. The sliding sleeve is the fulcrum of the compression spring. The sliding sleeve is strung on the spindle and is hinged to the connecting arm 14b fixed to the front end of the bracket crossbar 14a. 88a is located below the front end of the support body 4, to the right of the extended radius 80m of the upper stop point of the slider of the arc guide rail 80. At least one set of auxiliary spring rods 89 is provided, consisting of a compression spring 89b, a spindle 89d, and a sliding sleeve 89a. The front end of the spindle 89b is hinged to the slider 80a on the arc guide rail, and the sliding sleeve 89a is hinged to the connecting arm 14c fixed to the rear end of the bracket crossbar 14a. The sliding sleeve 89a serves as the fulcrum of the compression spring 89b and is located to the left of the sliding sleeve 88a. When the weight of the human leg presses on the contoured support body 80i, causing the slider 80a to rotate counterclockwise, the elastic force of the combined spring counterweight mechanism balances this rotation.

[0103] Depend on Figure 32 It can be seen that the braking mechanism 74 in the second gravity balance system scheme is located between the arc rocker arm 86 and the base 16. The structure and working principle of the braking mechanism are the same as those of the other two systems. Figure 28 , Figure 29 The braking mechanism is the same as that in the previous one.

[0104] Depend on Figure 34 It is known that the running equipment is foldable. When folding, the treadmill support 9 and the treadmill 10 are lifted upward together, the bracket 14 is lifted upward, and the support rod 7 and the support rod 13 are folded inward. The rear end of the running equipment base 16 is equipped with rollers 16f. If short-distance movement is required, simply tilt the running equipment backward at a certain angle and push the equipment to move back and forth.

Claims

1. A running device for protecting leg joints from injury, comprising a base (16) and a treadmill (10), characterized in that: The running device that protects the leg joints from injury has the angle between the running track plane (1) and the horizontal plane (6) of the treadmill set at 30°-75°, with the runner's back pressing on the support body (4) of the running device; the running device is a support structure, consisting of a base (16), a support mechanism, a support frame mechanism, and a gravity balance system; the support mechanism consists of a treadmill support (9), a treadmill (10), a support rod (7), and a gas spring (17), the treadmill support (9) The lower end of 9) is hinged to the base (16) by axle pin three (15). The treadmill (10) is fixed on the upper side of the treadmill support (9). The lower side of the treadmill support (9) is hinged to the adjustable length support rod one (7) by axle pin one (8). An angle positioning support one (7a) is provided at one end of the treadmill support (9) near axle pin one (8). A gas spring is provided between the middle of the lower side of the treadmill support (9) and the base (16). Spring (17); support mechanism or electric push rod (17a) is connected to the base (16) by a hinge at the middle of the lower side of the treadmill support (9), or hydraulic cylinder or air cylinder; the support frame mechanism consists of a bracket (14), a support body (4), a tension spring (11), and a second support rod (13). The lower end of the bracket (14) is hinged to the lower end of the base (16) or the treadmill support (9). There is a bracket crossbar (14a) above the bracket (14). A support body (4) is provided above the rod (14a). The support body (4) is hinged to the support body (4) by a pivot pin (12). The support body (4) is hinged to the middle of the support body by a pivot pin (13b). An angle positioning support (13a) is provided at one end of the support body (14) and the support rod (13b). A tension spring (11) is provided between one side of the treadmill bracket (9) and the middle of the support body (14). The support body (4) consists of three parts: a support mechanism, a safety mechanism, and a head support mechanism. The support mechanism consists of 1-3 unit bodies, a left-right swinging body (33), a right-up-down swinging body (32), and a bracket crossbar (14a). Each unit body consists of a support plate (27a), a guide post and guide sleeve mechanism, a guide post seat, and a base plate (31). The guide post and guide sleeve mechanism is located below the support plate (27a). The guide post and guide sleeve mechanism consists of a guide sleeve (27f), a guide post (30), a ball bearing bracket (27d), and a return spring (27c). The guide sleeve (27f) is located below the support plate (27a) and is fixed to the support plate as a whole. The guide post (30) is fixed to the base plate (31) by the guide post seat. Each unit body uses its own independent guide post and guide sleeve mechanism. Each unit body of this structure may use a common guide post shaft (3). 0b), the guide column of the unit is a hollow tube structure. The hollow guide column (30a) is sleeved on the common guide column shaft (30b). The two ends of the guide column shaft are fixed to the left and right swing bodies (33) with bearing seats. The left and right swing bodies (33) are above the up and down swing bodies (32). At the front end of the left and right swing bodies and the up and down swing bodies, there are sliding pairs and rotary pairs. The sliding pair is composed of a slider (33m) and a guide rail (33n). A rotary pair with a thrust bearing (33g) is provided between the slider (33m) and the left and right swing bodies (33). At least two rollers (33e) are provided between the rear end of the left and right swing bodies (33) and the bottom plate (32a) at the rear end of the up and down swing bodies (32). The lower middle part of the up and down swing bodies (32) is hinged to the crossbar (14a) of the running equipment through the four shaft pins (12).

2. The running device for protecting leg joints from injury according to claim 1, characterized in that: The running equipment is a cable-stayed structure, which consists of a base (16), a support mechanism, an upper hanging mechanism, a lower hanging mechanism, and a gravity balance system. The upper hanging mechanism of the cable-stayed structure consists of a hanging frame (19), a hanging cable (20), and a hanging body (22). A hanging frame (19) is provided above the treadmill support (9) and is hinged to the treadmill support. An angle positioning support (18) is provided between the hanging frame (19) and the treadmill support (9) near the hinge. The hanging frame (19) is also hinged to the base (16) of the running equipment. The upper end of the hanging frame (19) is attached to the hanging cable (20), and the lower end of the hanging cable is attached to the hanging body (22). The hanging body is used to support the human body.

3. The running device for protecting leg joints from injury according to claim 1, characterized in that: The safety mechanism is installed on the support plate or frame of any unit of the supporting mechanism. The safety mechanism can automatically lock the runner's body. The safety mechanism consists of a pressure plate (26d), a sector gear (26c), an upper clamping bar (26a), a lower clamping bar (26j), a pressure rod (26e), and a return spring (26g). A sector gear (26c) is provided on the left and right sides of the front end of the support plate (27a). The two sector gears mesh with each other. The left and right sector gears are hinged to the bearing seats on the left and right sides of the support plate (27a) or frame through axle pins (26i). The upper end of the pressure rod (26e) is fixed. The pressure rod is fixed on the lower side of the pressure plate (26d). The pressure rod has an L-shaped structure, and the bent end of the pressure rod is inserted into the elongated hole (26h) of the sector gear. The safety mechanism may be equipped with a rotating arm (26n). The pivot pin (26i) of the rotating arm (26n) is located on the left and right sides of the support plate (27a) or frame. The rotating arm (26n) is fixed to the lower clamping bar (26j) on the same side and can rotate around the pivot pin (26i). The other end of the rotating arm (26n) is provided with an elongated hole (26h). The bent end of the pressure rod (26e) is inserted into the elongated hole (26h) of the rotating arm.

4. The running device for protecting leg joints from injury according to claim 1, characterized in that: The head support mechanism consists of a head bracket (56) and an elastic support part. The elastic support part generates a torque on the head bracket (56) to resist the weight of the human head. The head support mechanism is located at the front end of the support mechanism. The head bracket (56) is hinged to the transition strip (53) on the support plate three (29a) at the front end of the support mechanism through a pivot pin (54). The head bracket (56) can swing up and down. The head bracket (56) is connected to the transition strip (53) or through a universal joint (61). The head bracket (56) can swing up and down and left and right. The elastic support part is located below the head bracket (56).

5. The running device for protecting leg joints from injury according to claim 1, characterized in that: The gravity balance system consists of three parts: a leg support mechanism (69), a counterweight mechanism (71), and a braking mechanism (74). The rotation center of the leg support mechanism is the mechanical rotation center of the human femur.

6. The running device for protecting leg joints from injury according to claim 1 or 5, characterized in that: The gravity balance system is a lever-type structure. The leg support mechanism of the lever-type structure consists of a side bracket (73), a leg support outer tube (69d), a leg support inner tube (69b), and a leg support body (69a). The side bracket (73) is an inner and outer tube structure with adjustable length. The side bracket (73) is installed on the left and right sides of the bracket (14). A leg support mechanism (69) is provided at the upper end of the side bracket (73). The outer tube (69d) of the leg support mechanism is hinged to the upper end of the side bracket by a pivot pin thirteen (69e). A leg support body (69a) is provided at the front end of the leg support mechanism. The leg support body is a cylindrical structure. The counterweight mechanism (71) of the lever-type structure is set on the side bracket (73) and consists of a balance arm outer tube (71). a) The balance arm inner tube (71c) and counterweight (71d) are composed of a balance arm outer tube (71a) and a leg support outer tube (69d) as an integral structure. A pivot pin thirteen (69e) is provided in the middle of the balance arm outer tube and the leg support outer tube. The counterweight (71d) is located at the outer end of the balance arm inner tube. The counterweight mechanism (71) is a lever-type structure or is set on the base (16) of the running equipment. At the pivot pin thirteen (69e) of the leg support outer tube (69d), there is a wheel 1 (75) or sprocket fixed as an integral part with the leg support outer tube (69d). The balance arm outer tube (71a) is hinged to the hinge seat (16a) on the base (16) by a pivot pin ten (69f). At the position of the pivot pin ten (69f), there is a connection between the balance arm outer tube and the balance arm outer tube (71a). 71a) A fixed integral sprocket two (78) or sprocket, with a transition wheel (77) between sprocket one and sprocket two, and sprocket one and sprocket two connected by a rope (76) or chain through the transition wheel; or sprocket one (75) and sprocket two (78) can be directly connected by a rope or chain; the lever-type braking mechanism (74) is preferably set between the counterweight mechanism (71) and the side support (73), or preferably set between the counterweight mechanism (71) and the running equipment base (16); the braking mechanism is provided with a pull rod (74c), two springs and a sliding sleeve (74d), the upper end of the pull rod (74c) is hinged to the lower side of the outer tube (71a) of the counterweight mechanism through a fourteenth pin (74a), and a sliding sleeve is provided in the middle of the pull rod. (74d) The sliding sleeve is hinged to the sliding sleeve support on the side bracket by the shaft pin fifteen (74e). A spring one (74b) is fitted on the upper section of the sliding sleeve (74d) on the pull rod, and a spring two (74f) is fitted on the lower section of the sliding sleeve. The upper end of the pull rod is provided with a spring adjustment nut (74h), and the lower end is provided with an adjustment nut (74g). The braking mechanism (74) is preferably set on one side of the leg support mechanism (69), that is, between the leg support outer tube (69d) and the side bracket inner tube (73c). The pull rod of the braking mechanism (74) can be an arc pull rod (79). One end of the arc pull rod (79) is hinged to the shaft pin seat (16b) on the base (16), and the sliding sleeve (74d) in the middle of the arc pull rod is hinged to the balance arm outer tube (71a).

7. The running device for protecting leg joints from injury according to claim 1 or 5, characterized in that: The gravity balance system is an arc track structure. The leg support mechanism of this structure consists of an arc guide rail (80), a slider (80a), a bracket crossbar (14a), a leg support rod (80h), and a contoured support body (80i). The arc guide rail (80) is located below the support body (4) and is fixed on the bracket crossbar (14a). One end of the leg support rod (80h) is fixed on the slider (80a), and the other end points to the lower part of the human thigh. The leg support body is a contoured support body (80i) or a cylindrical support body (69a). The guide sleeve (80c) of the contoured support body (80i) is fitted onto the leg. At the front end of the support rod (80h), a lower base plate (80e) is fixed on the upper side of the guide sleeve, and a contoured support block (80f) is fixed on the upper base plate (80k). The upper base plate (80k) and the lower base plate (80e) are hinged together. There is a limiting spring (80g) or an organic elastic body at the front and rear positions between the upper and lower base plates. The counterweight mechanism of this structure is a circular arc guide rail structure, which consists of a second circular arc guide rail (81), a second slider (81a), a transition wheel (84), a guide wheel (81b), an angle positioning support (82), and a rope (83). The second circular arc guide rail (81) and the first circular arc guide rail (80) are connected by a pivot pin seat. 80b) Hinged, the second arc guide rail (81) is hinged to the bracket (14) or the bracket crossbar (14a) or the base (16), and a rope (83) fixed at one end to the first slider (80a) is fixedly connected to the second slider (81a) along the first arc guide rail (80) through the transition wheel (84) and the guide wheel (81b). A counterweight (81j) is fixed on the second slider (81a). An angle positioning support (82) is provided between the second arc guide rail (81) and the bracket crossbar (14a); the counterweight mechanism of the arc track structure is or an arc rocker arm structure, and the arc rocker arm (81j) is fixed to the second slider (81a). The lower end of 6) is hinged to the base (16) by the shaft pin seventeen (16h), the upright (16e) is fixed to the base (16) as a whole, the upper end of the upright (16e) is provided with the transition wheel two (84b), the upper end of the arc rocker arm is provided with the arc ring (87), the arc ring (87) is provided with the counterweight (85), the rope fixed at one end to the slider one (80a) runs along the arc guide rail one (80), and is fixed at the front end of the arc ring (87) through the transition wheel (84) and the transition wheel two (84b); the braking mechanism (74) of the arc track structure is set between the arc rocker arm (86) and the base (16).

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