CN107224698A - Active variable damping treadmill - Google Patents

Abstract

An active variable damping treadmill, wherein the vertical position of a first rotating shaft is higher than the vertical position of a runner on a running belt, so that the side view of the running belt presents a structure with a high front part and a low back part, and a user can automatically slide down by utilizing the gravity of the user and the structure with the high front part and the low back part when running, thereby driving the damping device of the damping rotating shaft to generate relative damping action rotation through the variable damping mechanism of the first rotating shaft, the damping device can be a common magnetic control wheel or a fan and the like to train the endurance of the leg muscles of a runner, and the rotating speed is regulated and controlled through the variable speed ratio of the variable damping mechanism to enlarge and control the resistance of the damping device, the muscle strength training ability of adaptable different degree runners when user's speed slows down, can utilize damping device's resistance, makes the speed reduction of running area stop fast, has the security outside, does not need motor drive and electric drive when various places are used.

Description

Active Variable Damper Treadmill

technical field

The invention relates to an active variable damping treadmill, in particular to a treadmill which can enlarge and regulate the pushed damping of the running belt to train the leg muscle strength of runners at different levels without external power supply.

Background technique

At present, there are many kinds of treadmills, one of which is a flat treadmill, which only uses the inertia wheel to pass the reverse thrust of the runner to the running belt, and uses the inertia wheel to assist the running belt to rotate and advance. The faster the speed is, but the inertial wheel has a rotating gravitational acceleration, so the runner will not be able to stop the running belt quickly if he wants to stop while running. If the runner stops running quickly at this time, it will cause throwing danger.

In order to solve the aforementioned problems, an electric treadmill was invented. The power of the existing electric treadmill all adopts a single motor and a single steering as the power source to pull the running belt of the treadmill, and the power source is nothing more than a DC motor or There are two types of AC inverter motors. However, as we all know, DC motors can provide a limited range of speed and power, and cannot be used indefinitely; although AC variable frequency motors have a wide range of speed and power, but at extremely low frequencies (low speeds), the rotor magnetic flux of the motor is easily saturated. As a result, the AC variable frequency motor is difficult to control, and there is even a risk of burning. Therefore, when using an AC variable frequency motor at a low frequency, the frequency converter will automatically reduce the voltage acting on the motor, so that the torque will be greatly reduced. Because for AC variable frequency motors, below 120HZ is used for constant torque, and above 120HZ is used for constant power; therefore, when operating at high frequencies above 120HZ, the motor cannot maintain a high level of torque output, which limits it to a considerable extent speed output range.

Therefore, no matter the existing treadmill power source uses a DC motor or an AC variable frequency motor, a trade-off must be made in the speed provided by it. For example; in the extremely low speed used for rehabilitation, the power source must give up the implementation of high speed, and exclude users who run at high speed. Conversely, if it is to be implemented in high-speed output, it is necessary to give up low-speed rehabilitation users. In order to reduce the limitations caused by the above situation, treadmills used in rehabilitation often use AC variable frequency motors with a wider speed output range to meet the extremely low speed requirements for rehabilitation and the high speed requirements for fitness.

Because the above-mentioned existing treadmills must be driven by motors, the aforementioned passive electric treadmills based on rehabilitation were invented, but in fact, such as flat treadmills are dangerous, and electric treadmills only have cardiopulmonary function training. , and requires circuit boards, control panels and motors, relatively high cost; in view of the aforementioned defects, a magnetically controlled treadmill was invented; Moreover, the training of muscle strength cannot be performed according to the runner's ability to speed up or slow down according to the runner's ability to self-adjust the required muscle strength training.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the present invention provides an active variable damping treadmill, the vertical position of the first rotating shaft is higher than the vertical position of the runner on the running belt, so that the side view of the running belt presents a front height The low-rear structure enables users to slide down automatically by using their own gravity and the aforementioned high-front and low-rear structure when running, and then the damping device of the damping shaft is driven by the variable damping mechanism of the first rotating shaft to produce a relative damping effect. , the damping device can be a general magnetic control wheel or a fan, etc., to train the runner's leg muscle endurance, and adjust the speed through the variable speed ratio of the variable damping mechanism to expand the resistance of the control damping device, which can adapt to different levels of runners Excellent muscle strength training ability, when the user slows down, the resistance of the damping device can be used to make the running belt decelerate and stop quickly, which is safe and does not require motor drive or electric drive, so it can be used in various places.

In order to achieve the above object, the present invention provides an active variable damping treadmill, a first variable damping mechanism is provided on one side of the first rotating shaft at the front end of the running belt, and the first variable damping mechanism includes a first variable speed Wheel, a first speed change regulation mechanism and a first transmission rope; a first damping device is arranged on the damping shaft at the front end of the first shaft; therefore, the first transmission rope is wound on the first speed change wheel and the damping shaft, And the first transmission rope passes through the first speed change regulation mechanism to control the left and right yaw displacement of the first transmission rope, and falls on the first stage ring grooves of the first speed change wheel with different sizes to control the damping size of the damping device , providing muscle strength training for runners of different levels.

The aforesaid first shift control mechanism is composed of a first bracket and correspondingly at least one first pull rod, a first spring, a first pull cord, and a first push rod; wherein, the front end of the first bracket is provided with a The first front baffle is provided with a first rear baffle at its rear end, the first pull rod is axially passed between the first front baffle and the first rear baffle, and the first front baffle is passed through. The first pull rod end of the first pull rod fixes the first pull rope, and the first pull rod section passing through the first tailgate is sheathed with the first spring, and then fixed to the rear end of the first pull rod with the first push rod Withstand the first spring, so that the first spring is located between the first tailgate and the first push rod, and the first pull cord extends to a first knob buckle (generally commercially available to adjust the tightness) The buckle will not be described in detail); wherein, a first pressure rope fastener is fixed on the first pull rod to suppress the first transmission rope and link with the first pull rod; therefore, when the first knob buckle is pressed according to the damping In the direction of size adjustment, the first pull cord is pulled upwards by the first knob buckle, which drives the first pull rod to push forward and compress the first spring, and at the same time, the first pressure rope buckle pulls the first transmission rope Push it into the step ring groove of the largest diameter of the first speed change wheel. On the contrary, if the first knob buckle is reversely adjusted to loosen the first pull cord, the first pull rod will be pushed back by the first spring, Pushing the first transmission rope relative to the first pressure rope buckle to slide into one of the first-stage wheel grooves with a selected smaller diameter, so as to provide damping adjustment to adapt to different degrees of muscle strength training.

The first variable damping mechanism may further include a second variable damping mechanism to expand the damping range; that is, a second rotating shaft is arranged at the front end of the aforementioned first variable damping mechanism, and the second rotating shaft The second variable damping mechanism is arranged on the top and is located between the first rotating shaft and the damping rotating shaft. A second variable damping mechanism is provided on one side of the second rotating shaft. The second variable damping mechanism includes a second speed change wheel, A second speed change regulation mechanism and a second transmission rope; the second speed change regulation mechanism provided above the second speed change wheel is the same as the first speed change regulation mechanism, and the second speed change regulation mechanism is provided with a second bracket, A second spring, a second pull cord and a second push rod; wherein, the first transmission rope is wound with the first speed change wheel and the second rotating shaft, and the second transmission rope is connected with the second speed change wheel and the damping The rotating shaft is wound, and at the same time, the second pull cord of the second variable speed regulating mechanism is extended and connected to a second knob buckle to control the tightness, and cooperates with the aforementioned first variable damping mechanism to expand the damping regulating range.

In some embodiments, the damping device is a magnetron wheel or a fan.

In some embodiments, between the first rotating shaft and the damping rotating shaft, at least a plurality of the second rotating shafts can be arranged side by side, and the second variable damping mechanism is respectively provided on one side of the second rotating shaft, wherein the first The first transmission rope of the variable damping mechanism is wound on the first transmission wheel and the second shaft, and the second transmission rope of the second variable damping mechanism is wound on the second transmission wheel and the adjacent rotation shaft for continuous winding to the damping shaft; accordingly, the transmission rope of the above-mentioned variable damping mechanism must be wound with the damping shaft to expand and regulate the size of the damping.

In some embodiments, the speed change wheel is made of ring grooves of various stages with different diameters from large to small, so as to expand the control range of the speed change and relatively control the size of the damping.

In some embodiments, each of the variable damping mechanisms is also correspondingly provided with a knob buckle for respectively pulling the pull cord.

In some embodiments, the damping device may be composed of at least one magnetic wheel and at least one fan.

Beneficial effects of the present invention:

Adjust the speed through the gear ratio of the variable damping mechanism to expand and control the resistance of the damping device, which can adapt to the strength training ability of runners at different levels. When the user slows down, the resistance of the damping device can be used to slow down the running belt. It stops quickly and is safe, and it does not need motor drive or electric drive when used in various places.

Description of drawings

FIG. 1 is a three-dimensional perspective schematic diagram of a first embodiment of the active variable damping treadmill of the present invention, in which the damping device is an inertia wheel.

Fig. 2 is a three-dimensional perspective schematic diagram of the first embodiment of the active variable damping treadmill of the present invention, in which the damping device is a blower fan.

Fig. 3 is a three-dimensional perspective schematic diagram of the first embodiment of the active variable damping treadmill of the present invention, in which the damping device is a combination of an inertia wheel and a blower fan.

FIG. 4 is a partially enlarged schematic view of the first variable damping mechanism in the first embodiment of the active variable damping treadmill of the present invention.

FIG. 5 is a schematic top plan view of the first embodiment of the active variable damping treadmill of the present invention.

FIG. 6 is a schematic perspective perspective view of a second embodiment of the active variable damping treadmill of the present invention.

FIG. 7 is a partially enlarged schematic view of the first variable damping mechanism and the second variable damping mechanism in the second embodiment of the active variable damping treadmill of the present invention.

FIG. 8 is a schematic top plan view of the second embodiment of the active variable damping treadmill of the present invention.

Explanation of reference signs

Body 100

running belt A

first reel 1

first gear wheel 11

class ring ditch 111

Damping device 2

Damping device 2a

Damping shaft 21

The first variable damping mechanism 3

The first gear adjustment mechanism 31

first bracket 311

First front bezel 3111

First tailgate 3112

First tie rod 312

Press cord fastener 3121

Spring 313

First putter 314

First drawstring 315

First drive rope 32

First Knob Buckle 4

Second shaft 1a

Second speed change wheel 11a

Second variable damping mechanism 3a

The second gear adjustment mechanism 31a

Second bracket 311a

Second tie rod 312a

Second spring 313a

Second pusher 314a

Second drawstring 315a

Second drive rope 32a

First knob buckle/second knob buckle 4a.

detailed description

Please refer to Fig. 1 to Fig. 8 at the same time, the active variable damping treadmill of the present invention is provided with a first rotating shaft 1 at the front end of the running belt A of the body 100, which mainly includes the first rotating shaft 1, a damping device 2 and a first variable damping mechanism 3; the aforementioned components are all arranged on a body 100, and its main structural configuration is described as follows.

One side of the first rotating shaft 1 is provided with a first speed change wheel 11 , and step ring grooves 111 with different diameters are arranged on the first speed change wheel 11 from large to small.

The damping device 2 is disposed on a damping shaft 21 , and the damping shaft 21 is disposed on the adjacent first shaft 1 and located at the front end of the machine body 100 .

The first variable damping mechanism 3 includes a first speed change regulating mechanism 31 and a first transmission rope 32 arranged adjacent to the first speed change wheel 11, and the first transmission rope 32 is wound around the first speed change wheel 11. And on the damping rotating shaft 21.

The first speed change regulating mechanism 31 includes a first bracket 311, at least one first pull rod 312, at least one spring 313, a first push rod 314, at least one first pull cord 315 and a pressure cord buckle 3121, wherein, The front end of the first bracket 311 is provided with a first front baffle 3111, and its rear end is provided with a first rear baffle 3112, and the first front baffle 3111 and the first rear baffle 3112 are axially passed through the first A pull rod 312, and the first pull rope 315 is fixed at the end of the first pull rod 312 passing through the first front baffle 3111, and the first pull rod 312 passes through the section cover of the first rear baffle 3112 The first spring 313 is set, and the first push rod 314 is fixed on the rear end of the first pull rod 312 to withstand the first spring 313, so that the first spring 313 is located between the first tailgate 3112 and the first between push rods 314 .

The first pressing rope buckle 3121 is fixed on the first pull rod 312 to press the first transmission rope 32 sleeved on the first speed change wheel 11 and the damping shaft 21 and move with the first pull rod 312 .

A first knob buckle 4a is connected with the first pull cord 315 to regulate the advancement and relaxation of the first pull rod 312 and push the first push rod 314 back through the first spring 313 to move the first transmission The rope 32 slides on the step ring grooves 111 of different diameters of the first speed change wheel 11 to provide speeds of different speed ratios, and drives the damping device 2 on the damping shaft 21 to adjust the magnitude of different damping.

The first variable damping mechanism 3 may further include a second variable damping mechanism 3a to expand the control damping range; that is, a second rotating shaft 1a is set adjacent to the first variable damping mechanism 3, and the first variable damping mechanism 3a The second variable damping mechanism 3a is arranged on the second rotating shaft 1a and is located between the first rotating shaft 1 and the damping rotating shaft 21, and the second variable damping mechanism 3a is arranged on one side of the second rotating shaft 1a. The variable damping mechanism 3a includes a second speed change wheel 11a, a second speed change regulation mechanism 31a and a second transmission rope 315a; the second speed change regulation mechanism 31a and the first speed change regulation mechanism are arranged adjacent to the second speed change wheel 11a 31, the second speed change regulating mechanism 31a is provided with a second bracket 311a, a second spring 313a, a second pull cord 315a and a second push rod 314a; wherein, the first transmission rope 32 and the first speed change Wheel 11 and the second rotating shaft 1a are wound, and the second transmission rope 315a is wound with the second transmission wheel 11a and the damping rotating shaft 21, while the second pull cord 315a of the second speed change regulating mechanism 31a is extended and connected to a second The knob buckle 4a controls the tightness of the second pull cord 315a, and cooperates with the aforementioned first variable damping mechanism 3 to expand the range of damping control.

In some embodiments, between the first rotating shaft 1 and the damping rotating shaft 21, at least a plurality of the second rotating shafts 1a can be arranged side by side, and the second variable damping mechanism is respectively arranged on one side of the second rotating shaft 1a. 3a, wherein the first transmission rope 32 of the first variable damping mechanism 3 is wound on the first transmission wheel 11 and the second rotating shaft 1a, and the second transmission rope 315a of the second variable damping mechanism 3a is wound on The second speed change wheel 11a and the adjacent rotating shafts are successively wound on the damping shaft 21; accordingly, finally the transmission rope of the aforementioned variable damping mechanism must be wound with the damping shaft 21 to expand and regulate the size of the damping.

Furthermore, another damping device 2a (as shown in FIG. 6 to FIG. 8 ) is provided on the second rotating shaft 1a corresponding to the damping device 2 on the damping rotating shaft 21 to expand and control the size of the damping.

In some embodiments, the damping device 2 is a magnetron wheel or a blower fan.

In some embodiments, each of the first variable damping mechanism 3 and the second variable damping mechanism 3a is also provided with the first knob buckle 4 and the second knob buckle 4a correspondingly, so as to respectively pull the first pull Rope 315, second pull cord 315a.

In some embodiments, the damping device 2 can be composed of at least one magnetron wheel and at least one blowing fan arranged coaxially.

Through the above-mentioned structure, the first transmission rope 32 on the first transmission wheel 11 of the first rotating shaft 1 drives the damping device 2 of the damping rotating shaft 21 to rotate relative to the damping effect, so as to train the runner's leg muscle endurance. The first transmission rope 32 regulates the rotating speed through the gear ratio of the first variable damping mechanism 3 on the first transmission wheel 11, and cooperates with the magnetic control wheel or fan damping effect of the damping device 2 to expand the control damping range. It can adapt to the muscle strength training of different levels of runners. When the user slows down, the resistance of the damping device 2 can be used to make the running belt A decelerate and stop quickly. In addition to safety, it does not need motor drive when used in various places and electric drive; a plurality of rotating shafts and a plurality of variable damping mechanisms can be arranged sequentially between the aforementioned first rotating shaft 1 and the damping rotating shaft 21 to expand the damping range.

Claims (8)

1. a kind of active adaptive damping treadmill, it is characterised in that：There is first rotating shaft, one in the front end of the treadmill belt of body Damping unit, one first adaptive damping mechanism, its structure include：

The side of the first rotating shaft is provided with the class for setting different-diameter on one first change pulley, first change pulley from large to small Circular groove；

The damping unit is located on a Damping rotation shaft, and the Damping rotation shaft is located at the neighbouring first rotating shaft, and positioned at the body front end；

The first adaptive damping mechanism, including it is located at a speed change control mechanism and one first transmission of neighbouring first change pulley Rope, first transmission rope is wrapped on first change pulley and the Damping rotation shaft；And

The speed change control mechanism, including a first support, at least one first pull bar, at least one first spring, one first push rod, extremely Few one first drawstring and a pressure sling part, wherein, the first support is fixed on the body, first pull bar axially wear this First drawstring is fixed in one support, the first pull bar front end, and first back end of tie rod is arranged first spring, then first is pushed away with this Bar is fixed on first back end of tie rod and withstands first spring；And

The pressure sling part, is fixed on first pull bar, and first change pulley and being somebody's turn to do on the Damping rotation shaft are set in suppress First transmission rope is simultaneously interlocked with the first pull bar；

One first knob fastener, is connected with the first drawstring, with after regulating and controlling the advance of first pull bar and loosening by the first spring Pushing tow the first push rod involution, stirs first transmission rope and is slid on class's circular groove of the different-diameter of first change pulley, with The rotating speed of different gear ratio is provided, and drives the size of the damping unit regulation and control different damping on Damping rotation shaft.

2. active adaptive damping treadmill as claimed in claim 1, it is characterised in that：The first rotating shaft and Damping rotation shaft it Between multiple rotating shafts and multiple first adaptive damping mechanisms be sequentially set, the power transmission shaft is wound with neighbouring rotating shaft, it is final this first can The transmission rope of mutative damp mechanism must be wound with Damping rotation shaft.

3. active adaptive damping treadmill as claimed in claim 1, it is characterised in that：The first support front end is provided with one the One front apron, its rear end be provided with one first rear baffle, axially worn between first front apron and the first rear baffle one this first Pull bar, and first drawstring is fixed in first drag link end for wearing first front apron, and first pull bar pass this first The section that passes of rear baffle is arranged first spring, then is fixed on first back end of tie rod with first push rod and withstands first bullet Spring, makes first spring be located between first rear baffle and first push rod.

4. active adaptive damping treadmill as claimed in claim 1, it is characterised in that：Each the first adaptive damping machine Structure is all correspondingly provided with a knob fastener, to pull each drawstring respectively.

5. active adaptive damping treadmill as claimed in claim 1, it is characterised in that：The damping unit be a magnetic control wheel or One fan.

6. active adaptive damping treadmill as claimed in claim 5, it is characterised in that：The damping unit is located at the damping and turned On axle, it is made up of an at least magnetic control wheel with being coaxially disposed an at least blower fan.

7. active adaptive damping treadmill as claimed in claim 1, it is characterised in that：Further include at least one second rotating shaft and At least one second adaptive damping mechanism, second rotating shaft be arranged between the first rotating shaft and Damping rotation shaft and with the first rotating shaft And the Damping rotation shaft be arranged in parallel, the second rotating shaft side is provided with the second adaptive damping mechanism, the second adaptive damping mechanism Including one second change pulley, one second speed change control mechanism and one second transmission rope；What is be provided with above second change pulley should Second speed change control mechanism is identical with the first speed change control mechanism, and the second speed change control mechanism is provided with a second support, one Second spring, one second drawstring and one second push rod；Wherein, first transmission rope is twined with first change pulley and the second rotating shaft Around second transmission rope is wound with second change pulley and Damping rotation shaft, while second drawing of the second speed change control mechanism Rope extension, which is connected on one second knob fastener, to be controlled elastic, and is collocated with each other with the first adaptive damping mechanism, to expand damping Modification scope.

8. active adaptive damping treadmill as claimed in claim 7, it is characterised in that：More set at least one second rotating shaft Corresponding another damping unit is put, it is corresponding with the damping unit on the Damping rotation shaft to set.