CN214913061U

CN214913061U - Double-lifting treadmill

Info

Publication number: CN214913061U
Application number: CN202121252055.3U
Authority: CN
Inventors: 李军
Original assignee: SHAN DONG HUIKANG SPORT EQUIPMENT CO LTD
Current assignee: SHAN DONG HUIKANG SPORT EQUIPMENT CO LTD
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-11-30
Anticipated expiration: 2031-06-04

Abstract

The utility model belongs to the sport equipment field, concretely relates to two lift treadmills, including the chassis, roller and back roller before chassis front end and rear end are equipped with respectively, the track suit is in the front between roller and the back roller, the front end both sides below of its characterized in that chassis is equipped with the lift leg respectively, two lift leg lower extreme inboards are connected through lift leg connecting rod, the upper end of two lift legs articulates on the chassis through the round pin axle respectively, chassis front end both sides are equipped with an electric putter respectively, electric putter's telescopic link articulates on the lift leg through the round pin axle, electric putter's cylinder body articulates on the chassis through the round pin axle. The utility model has the advantages of stable lifting, convenient speed regulation and safe use. The utility model discloses a two electric putter, when the chassis was in the heavy grade use, stability was good.

Description

Double-lifting treadmill

Technical Field

The utility model belongs to the sport equipment field, concretely relates to two lift treadmills.

Background

The treadmill is a body-building apparatus which is commonly used in families and gymnasiums, and is divided into an electric treadmill and an unpowered treadmill according to the power source, wherein the unpowered treadmill is a treadmill which can control the speed only by the acting force of the body without power plug, and is provided with a lifting underframe, the front end of the treadmill is raised when in use, the whole underframe is arranged in an inclined way, and the running speed and the running state are controlled by changing the gravity center of the body forwards or backwards. The prior unpowered treadmill has the following defects in the using process:

1) the chassis lifting generally adopts a single lifting cylinder or hydraulic cylinder, and the chassis is unstable when tilting;

2) when the speed of the crawler belt is too high, even a skilled operator can hardly effectively decelerate in time, and only a mode of jumping away from the running machine can be adopted, so that danger is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the unpowered treadmill of prior art and have the lift back unstable, the inconvenient, unsafe defect of speed governing provides a two lift treadmills, and it adopts two electric putter to realize that the chassis goes up and down stably, adopts resistance motor to adjust track speed, and the speed governing is convenient, and the security performance is high.

The utility model discloses a realize through following technical scheme:

the utility model provides a two lift treadmill promptly, including the chassis, chassis front end and rear end are equipped with preceding roller and back roller respectively, the track suit is in the front between roller and the back roller, its characterized in that the front end both sides below of chassis is equipped with the lift leg respectively, two lift leg lower extreme inboards are connected through lift leg connecting rod, the upper end of two lift legs articulates on the chassis through the round pin axle respectively, chassis front end both sides are equipped with an electric putter respectively, electric putter's telescopic link articulates on the lift leg through the round pin axle, electric putter's cylinder body articulates on the chassis through the round pin axle.

The utility model discloses an electric putter is electronic jar again, it belongs to the mature commercial product of prior art, and it is from taking position sensor, can realize two electric putter synchronous working, and the chassis goes up and down steadily.

The utility model discloses all set up linear displacement sensor on two electric putter, guarantee two electric putter synchronous working.

The linear displacement sensor is a product mature in the prior art and sold in the market, the measurement principle of the linear displacement sensor is generated based on an RLC (radio link control) coupling circuit, the linear displacement sensor is an innovative technology of an inductive principle, the detection principle of the linear displacement sensor is different from that of a potentiometer type or magnetostrictive type sensor, and the measurement mode has great advantages.

Linear displacement sensors integrate a signal transmitter and receiver coil system, which are precisely printed on a circuit board in the form of printed coils. The transmitting signal coil is activated by a high frequency ac magnetic field and interacts with the position block (resonator) to create an RLC inductive circuit. Thus, the resonator forms an inductive coupling with the receiving coil. At the position where the receiving signal coil is arranged, the voltage change is caused by the induction of the resonator and the coil. These voltages are the measurement signals of the sensor. In order to make the measurement more flexible and fast, the sensor comprises a coarse and a fine measuring coil system. The former is responsible for roughly positioning the resonator and the latter for precisely positioning. The double pipe ensures its accurate measurement. The novel detection principle not only ensures the accuracy of the sensor, but also enables the sensor to work in a non-contact mode, and within an allowable range, even if the position block deviates or shakes, the output of the sensor cannot be deviated.

The utility model discloses an electric putter model is preferably but not limited to the electric putter that the model that adopts the production of Jiangsu Eszo intelligent system limited is ASZ-TG02, and it is from taking linear displacement sensor.

Further, the utility model discloses an chassis front end below is close to preceding roller department and is equipped with the resistance motor, and the resistance motor is the generator, and the output shaft of resistance motor passes through transmission and is connected with the one end of preceding roller.

The utility model discloses two kinds of motion modes have:

1) the working principle in the speed limiting mode is as follows: when the user runs on the track of perk, under the effect of self gravity, the track can accelerate gradually, and the controlling means of treadmill can detect the velocity of movement of track, and the speed of generator is directly proportional with the running speed of track this moment, as long as the track drives the motor and rotates, and the load intercommunication produces electric current in the return circuit promptly in the generator return circuit simultaneously. While the voltage supplied by the generator to the variable load is proportional to the generator speed. The principle of the rotation speed regulation is as follows: the output load of the generator is the output current and the external load increase is the current increase, reflected in the increase in the electromagnetic torque of the generator. The torque provided by the power source of the dragging generator is increased naturally, the crawler belt is the power source of the dragging generator, when the crawler belt works in a speed-limiting mode, the controller detects the working voltage of the generator, the set running speed is S at the moment, the voltage U and the current I of the generator can be correspondingly calculated, and when the crawler belt running speed exceeds the set speed, the controller detects the voltage increase of the generator and controls the increase of the variable load to increase the current in a loop of the generator, namely the increase of the reverse torque provided for the crawler belt (the power source) and the decrease of the crawler belt speed. On the contrary, when the track running speed is lower than the set speed, the controller detects that the voltage of the generator is reduced, and controls the reduction of the variable load to reduce the current in the generator circuit, namely the reduction of the reverse torque of the generator, namely the reduction of the reverse torque provided for the track (power source), and at the moment, a sporter feels that the resistance is reduced, the moving speed can be increased, so that the speed of the track can be maintained at the set value S. Therefore, the danger of the user caused by the too high speed of the crawler belt can be avoided, and the defect that the traditional unpowered treadmill cannot control the movement speed is overcome.

2) The working principle in the torque control mode is as follows: the user controls the resistance motor through the instrument panel of the treadmill, so that the resistance motor works in a torque control mode to provide a constant resistance for the user, and when the user forwards props against the front-section handrail or the cross beam and pedals backwards, the heat consumption of the sporter can be improved, and the purpose of improving the exercise effect is achieved. The principle is as follows: the controller detects the electric current size, as long as the track drives the generator and rotates, can produce the electric current, and the controller makes electric current invariable in the generator return circuit for the generator provides variable load, and detailed principle is as follows: the output load of the generator is the output current, and the external load increase is the current increase, which is reflected in the increase of the electromagnetic torque of the generator. The torque provided by the power source for dragging the generator is increased naturally, the crawler belt is the power source for dragging the generator, when the generator works in a torque control mode, the controller detects the working current of the generator, the set torque value is K at the moment, the current value I of the generator can be correspondingly calculated, the magnitude of the output current K of the generator can be controlled by adjusting the increase and decrease of the load in the loop of the generator, and the reverse torque borne by the crawler belt (the power source) can be maintained unchanged.

When the resistance motor adopts a generator, the generator is connected with a speed regulator and a storage battery, and the working principle of the resistance motor is the same as that of a generator with the patent number ZL201120522428.4, which is named as speed-adjustable running machine without an external power supply, namely, the electric energy generated by the generator is supplied for controlling and regulating the speed of the track, and the external power supply is not used. The speed regulator detects generator rotor speed, when the rotational speed is higher than the speed of settlement, the speed regulator increases the consumption to the generator electricity production, the load that also increases the generator makes the rotational speed of generator reduce, the resistance that the preceding roller that is connected with the generator received simultaneously can increase, thereby reach the purpose that reduces track speed, when the rotor speed is less than the setting value, the speed regulator reduces the consumption to the generator electricity production, the load that also reduces the generator makes the rotational speed of generator improve, the resistance that the preceding roller that is connected with the generator received simultaneously can reduce, thereby reach the purpose that improves track speed. Through the adjustment, the treadmill operates according to the set speed.

The controller of the present invention is a central controller (preferably but not limited to 89C52RC) comprising a/D conversion chip such as AD7656, a sampling circuit centered at MAX197 and related peripheral circuits.

The utility model discloses a variable parallel circuit that adjustable load constitutes for power resistor, (power resistor is gone into to the cluster in the circuit, and load in every parallelly connected resistance then increases the circuit, otherwise then reduces the load), also can be used for charging for outside energy storage equipment, also can regard as an adjustable load, and the size of adjusting charging current then can adjust the size to load in the circuit.

The transmission device of the utility model is a transmission belt or a transmission chain or a transmission gear.

Further, the utility model discloses a be equipped with the braked wheel on the output shaft of resistance motor, be equipped with motor brake equipment on the chassis of braked wheel department, motor brake equipment includes support, adjusting bolt, brake block and lead screw motor, the support is the arc structure, installs in the braked wheel top, articulates on the chassis of motor through the round pin axle in its inner end top outside, is equipped with adjusting bolt on the chassis that its inner end below outside corresponds, and the support outer end articulates through the round pin axle has lead screw motor base, is equipped with decurrent lead screw motor on the lead screw motor base, is equipped with the vice motion pin of lead screw on the lead screw of lead screw motor, and the brake block frame lower part outside articulates on the vice motion pin of lead screw, and the inboard of brake block frame is equipped with the brake block, is equipped with the leading wheel on the inboard support that corresponds in brake block frame upper portion.

Traditional unpowered track treadmill, when the user steps on the track, the track can rotate immediately, and the user falls down easily, the utility model discloses set up motor brake equipment, keep the track motionless when the user steps on the treadmill and prevent to fall down, use safe and reliable more.

The utility model discloses a motor brake equipment is just reversing through positive and negative controller control lead screw motor, makes the vice motion round pin of lead screw realize the up-and-down motion through the lead screw is rotatory, adjusts the clearance between brake block and the braked wheel to reach the purpose of brake. Through the adjusting bolt, the gap between the brake pad and the brake wheel can be adjusted under the condition that the screw rod motor is not started.

Further, the utility model discloses a chassis both sides of back roller department are equipped with the track and rise tight device that rises, and the track rises and tightly installs including back roller bearing and back roller adjusting bolt, back roller bearing is square frame structure, and it is installed in the back roller top of back roller, and back roller adjusting bolt passes the preceding lateral wall of back roller bearing, the back lateral wall of back roller bearing and back roller bearing in proper order, is equipped with the screw hole that matches with back roller adjusting bolt on the back roller, positive and negative rotatory back roller adjusting bolt, and the back roller drives the back roller and removes along back roller adjusting bolt.

The utility model has the advantages of stable lifting, convenient speed regulation and safe use. The utility model discloses a two electric putter, when the chassis was in the heavy grade use, stability was good.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic plan view of the front end of FIG. 1;

FIG. 3 is an enlarged view of part A of FIG. 1;

fig. 4 is a schematic perspective view of the present invention in another direction;

fig. 5 is a schematic view of a three-dimensional structure of the motor brake device of the present invention;

FIG. 6 is an exploded schematic view of FIG. 5;

fig. 7 is a schematic plan view of the motor brake apparatus of the present invention;

fig. 8 is a schematic perspective view of the motor brake apparatus of the present invention;

fig. 9 is an exploded view of the motor brake apparatus of the present invention;

fig. 10 is an exploded view of the screw motor and the brake pad of the present invention;

fig. 11 is a control schematic diagram of the electric putter of the present invention.

As shown in the figure: 1. lifting legs; 2. an electric push rod; 3. a front roller; 4. a crawler belt; 5. a chassis; 6. a rear roller; 7. a rear roll shaft; 8. a rear roll shaft bracket; 9. a rear roll shaft adjusting bolt; 10. a power source; 11. a resistance motor; 12. a resistance motor brakes the wheel; 13. a motor braking device; 13-1, arc-shaped bracket; 13-2. screw motor base; 13-3. a screw motor; 13-4, moving pin of screw rod pair; 13-5. a screw rod; 13-6, brake block frame; 13-7, brake pads; 13-8, a guide wheel; 14. a front roller shaft pulley; 15. a resistance motor pulley; 16. a resistance motor fixing bracket; 17. resistance motor adjusting bolt.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1-11: the front end of an underframe 5 is provided with a front roller 3, the rear end is provided with a rear roller 6, a crawler belt 4 is sleeved between the front roller 3 and the rear roller 6, the lower parts of the two sides of the front end of the underframe 5 are respectively provided with a lifting leg 1, the inner sides of the lower ends of the two lifting legs 1 are connected into a whole through a lifting leg connecting rod, the whole body is H-shaped, the upper ends of the two lifting legs 1 are respectively hinged on the underframe 5 through a pin shaft, the two sides of the front end of the underframe 5 are respectively provided with an electric push rod 2, the telescopic rod of the electric push rod 2 is hinged on the lifting legs 1 through a pin shaft, the cylinder body of the electric push rod 2 is hinged on the underframe 5 through a pin shaft, the lower part of the front end of the underframe 5 is also provided with a resistance motor 11 and a motor brake device 13 which are close to the front roller 3, the resistance motor 11 is a generator, the upper end of the resistance motor 11 is fixed on an arc support 13-1, the corresponding position of the underframe 5 is provided with a resistance motor fixed support 16, the resistance motor fixed support 16 is hinged with the rear part of the arc support 13-1 through a pin shaft, a resistance motor adjusting bolt 17 is arranged on the chassis 5 corresponding to the lower part of the resistance motor 11, the resistance motor adjusting bolt 17 penetrates through a threaded hole on the chassis 5 to be connected with the arc-shaped support 13-1, a resistance motor braking wheel 12 and a resistance motor belt pulley 15 are sequentially arranged on an output shaft of the resistance motor 11 from inside to outside, a front roller shaft driven wheel 14 is arranged at the outer end of a front roller shaft of the front roller 3, and the resistance motor belt pulley 15 and the front roller shaft driven wheel 14 are connected through a transmission belt (poly-wedge belt).

A motor brake device 13 is arranged close to a resistance motor brake wheel, a screw rod motor base 13-2 is hinged with the front side of the front part of an arc-shaped support 13-1 through a pin shaft, a downward screw rod motor 13-3 is arranged on the screw rod motor base 13-2, a screw rod pair moving pin 13-4 is arranged on a screw rod 13-5 of the screw rod motor 13-3, the outer side of the lower part of a brake block frame 13-6 is hinged on the screw rod pair moving pin 13-4, a brake block 13-7 is arranged on the inner side of the brake block frame 13-6, and a guide wheel 13-8 is arranged on the support 13-1 corresponding to the inner side of the upper part of the brake block frame 13-6.

The utility model discloses during the equipment, through rotatory resistance motor adjusting bolt 17, can adjust the distance between resistance motor belt pulley 15 and the front roll axle belt pulley 14 of resistance motor 11 to play the effect of the drive belt between the tight both of rising.

Before the utility model is used, the screw rod motor 13-3 is started through the button on the manual control instrument panel, the screw rod 13-5 is controlled to rotate in the forward direction, so that the screw rod pair motion pin 13-4 moves downwards to drive the brake block frame 13-6 and the brake block 13-7 to approach to the direction of the resistance motor brake wheel 12 until the brake block frame and the brake block are attached together, the screw rod motor 13-3 is closed, and the crawler 4 is kept still to prevent falling down when a user steps on the treadmill.

When a user completely steps on the treadmill, a button on a manual control instrument panel is used for starting a screw rod motor 13-3 and controlling a screw rod 13-5 to rotate reversely, so that a motion pin 13-4 of a screw rod pair moves upwards to drive a brake block frame 13-6 and a brake block 13-7 to be far away from a resistance motor brake wheel 12 and return to an initial position, and the screw rod motor 13-3 is closed. Can do exercise, there are two kinds of modes during the motion:

when the electric vehicle works in the mode 1 (speed-limiting mode), when a person stands on the inclined section of the crawler 4, the crawler 4 can be gradually accelerated under the action of self gravity, the speed of the generator is in direct proportion to the running speed of the crawler 4, as long as the crawler 4 drives the generator to rotate, meanwhile, the variable load in the loop of the generator is communicated, the current is generated in the loop, and meanwhile, the voltage provided by the generator to the variable load is in direct proportion to the rotating speed of the generator. The detailed principle is as follows: the output load of the generator is output current, the external load is increased, namely current is increased, the increase of electromagnetic torque of the generator is reflected, the torque provided by a power source for dragging the generator is also increased naturally, the crawler 4 is the power source for dragging the generator, the controller detects the working voltage of the generator, the set operation speed is S at the moment, the voltage U and the current I of the generator are correspondingly calculated, when the operation speed of the crawler 4 exceeds the set speed, the controller detects the increase of the voltage of the generator, the increase of the variable load is controlled to increase the current in a loop of the generator, namely the increase of the reverse torque of the generator, namely the reverse torque provided for the crawler 4 (the power source) is increased, and the speed of the crawler 4 is reduced; on the contrary, when the running speed of the crawler 4 is lower than the set speed, the controller detects that the voltage of the generator is reduced, and controls the reduction of the variable load to reduce the current in the generator loop, namely the reduction of the reverse torque of the generator, namely the reduction of the reverse torque provided for the crawler 4 (power source), and at the moment, a sporter feels that the resistance is reduced, so that the running speed can be improved, the speed of the crawler 4 can be maintained at the set value S, and the danger brought to the user by the excessively high speed of the crawler 4 is avoided.

When the work is in a mode 2 (torque control mode), the controller detects the current of the generator, as long as the crawler belt 4 drives the generator to rotate, the current can be generated, the controller provides a variable load for the generator to enable the current in a generator loop to be constant, and the detailed principle is as follows: the output load of the generator is output current, the external load is increased, namely current is increased, the electromagnetic torque of the generator is reflected to be increased, the torque provided by a power source for dragging the generator is also increased, the crawler belt is the power source for dragging the generator, when the generator works in a constant torque mode, the controller detects the working current of the generator, the set torque value is K at the moment, the current value I of the generator can be correspondingly calculated, the output current K of the generator can be controlled by adjusting the increase and the decrease of the load in a loop of the generator, and the reverse torque borne by the crawler belt (the power source) can be maintained unchanged. The mode can improve the heat consumption of the sporter and achieve the aim of improving the exercise effect.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it.

Claims

1. The utility model provides a two lift treadmill, including the chassis, chassis front end and rear end are equipped with preceding roller and back roller respectively, the track suit is in the front between roller and the back roller, its characterized in that front end both sides below of chassis is equipped with the lift leg respectively, two lift leg lower extreme inboards are connected through lift leg connecting rod, the upper end of two lift legs articulates on the chassis through the round pin axle respectively, chassis front end both sides are equipped with an electric putter respectively, electric putter's telescopic link articulates on the lift leg through the round pin axle, electric putter's cylinder body articulates on the chassis through the round pin axle.

2. The dual lifting treadmill of claim 1, wherein a resistance motor is disposed below the front end of the base frame adjacent the front roller, the resistance motor being a generator, an output shaft of the resistance motor being coupled to one end of the front roller via a transmission.

3. The dual elevating treadmill of claim 1, wherein the output shaft of the resistance motor is provided with a brake wheel, the bottom frame of the brake wheel is provided with a motor brake device, the motor brake device comprises a bracket, an adjusting bolt, a brake block and a lead screw motor, the bracket is of an arc structure and is installed above the brake wheel, the outer side of the upper part of the inner end of the bracket is hinged on the bottom frame of the motor through a pin shaft, the adjusting bolt is arranged on the bottom frame corresponding to the outer side of the lower part of the inner end of the bracket, the outer end of the bracket is hinged on a lead screw motor base through a pin shaft, the lead screw motor base is provided with a downward lead screw motor, the lead screw of the lead screw motor is provided with a lead screw pair movement pin, the outer side of the lower part of the brake block frame is hinged on the lead screw pair movement pin, the inner side of the brake block frame is provided with a brake block, and the guide wheel is arranged on the bracket corresponding to the inner side of the upper part of the brake block frame.

4. The double-lifting treadmill is characterized in that two sides of an underframe at the rear roller are provided with track tensioning devices, each track tensioning device comprises a rear roller shaft support and a rear roller shaft adjusting bolt, each rear roller shaft support is of a square frame structure and is installed above a rear roller shaft of the rear roller, each rear roller shaft adjusting bolt sequentially penetrates through a front side wall of each rear roller shaft support, each rear roller shaft and a rear side wall of each rear roller shaft support, each rear roller shaft is provided with a threaded hole matched with each rear roller shaft adjusting bolt, each rear roller shaft adjusting bolt rotates forwards and backwards, and each rear roller shaft drives the rear roller to move left and right along the corresponding rear roller shaft adjusting bolt.