CN107080920A - A kind of treadmill - Google Patents

Abstract

The invention relates to a treadmill, comprising a frame, a running belt, and a synchronous mechanism, wherein rolling devices are installed at both ends of the frame for rotation; the running belt is supported on the frame through the rolling devices , the rolling device drives the running belt to rotate around the frame; the synchronous mechanism drives the two rolling devices to roll synchronously, so that each position of the running belt keeps running synchronously; the upper part of the frame is provided with The supporting part is in a concave arc shape, and the running belt moved to the support part contacts with the support part to form a concave arc-shaped running platform. In the present invention, since an arc-shaped support portion is provided on the upper part of the frame, the running belt that moves to the support portion can contact the support portion to form a corresponding concave arc, thereby forming a concave arc-shaped treadmill, and the user can pass Standing on different positions of the curved treadmill realizes different exercise modes.

Description

a treadmill

technical field

The invention relates to the technical field of sports equipment, in particular to a treadmill.

Background technique

In recent years, more and more people love outdoor sports and fitness exercises in gyms. Treadmills are commonly used auxiliary fitness equipment in people's healthy life, while traditional treadmills work by electricity, so the existing treadmills It must be placed in a place with a power supply and a socket, otherwise it will not work and the work will be more limited. At the same time, the treadmills of existing treadmills are mostly planar structures. If it is necessary to meet the exercise needs of different users, it needs to be realized by adjusting the inclination angle of the treadmill. cost, and the adjustment method is single. On the other hand, due to the unreasonable structural design of the existing treadmill, the running belt often slips, making the front and rear rotation speeds of the running belt inconsistent, causing the running belt to bounce up and down, and easily causing the user to fall.

The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known in the art to a person of ordinary skill in the art.

Contents of the invention

In view of this, the embodiment of the present application hopes to provide a treadmill to at least solve the problems existing in the prior art.

The technical solution of the embodiment of the present application is achieved in this way. According to one embodiment of the present application, a treadmill is provided, including a frame, a running belt, and a synchronous mechanism, wherein,

The two ends of the frame are respectively rotated and provided with rolling devices;

The running belt is supported on the frame by the rolling device, and the rolling device drives the running belt to rotate around the frame;

The synchronous mechanism drives the two rolling devices to roll synchronously, so that each position of the running belt keeps running synchronously;

The upper part of the frame is provided with a concave arc-shaped support portion, and the running belt moved to the support portion contacts the support portion to form a concave arc-shaped treadmill.

In some embodiments, the synchronization mechanism includes a fixed belt, the fixed belt is supported on the frame by the rolling device and connected with the inner surface of the running belt, so that the fixed belt is connected to the running belt Take exercise together.

In some embodiments, a plurality of hook-shaped first limiters are provided on the inner surface of the running belt in the circumferential direction; A guide plate in a concave arc shape is adapted; the end of the first limiting member moved to the support part is in contact with the bottom surface of the guide plate.

In some embodiments, second limiting members are respectively provided on both sides of the frame, one end of the second limiting member is connected to the frame, and the other end of the second limiting member is connected to the frame. The inner sides of the fixing straps moved to the lower part of the frame contact.

In some embodiments, a first rolling member is provided at the end of the first limiting member.

In some embodiments, the synchronous mechanism includes a synchronous wheel and a synchronous belt, the synchronous wheel is arranged at the end of the same side of each of the rolling devices, and the synchronous belt is sleeved on the outside of each of the synchronous wheels and drives each The synchronous wheels rotate synchronously.

In some embodiments, the synchronous mechanism further includes a tensioning wheel, the tensioning wheel is slidably connected with the frame, and the tension of the synchronous belt is adjusted by changing the contact position between the tensioning wheel and the synchronous belt. Tightness.

In some embodiments, there are at least two tensioning wheels, which are respectively arranged at two ends of the frame close to the rolling device.

In some embodiments, the support part includes a plurality of rotating shafts rotatably connected to the upper part of the frame, and each of the rotating shafts is arranged in a concave arc at intervals to form an arc-shaped support surface in contact with the running belt.

In some embodiments, the supporting parts are respectively symmetrically arranged on two opposite inner sides of the upper part of the frame, and the supporting parts include a plurality of second rolling elements arranged at intervals in a concave arc shape. The two inner sides of the running belt are respectively in contact with the arc-shaped support surfaces formed by the second rolling elements.

In some embodiments, it also includes a resistance adjustment device, the resistance adjustment device includes a transmission belt and a driving device, the driving device is arranged on the frame, and the transmission belt is formed by one end of the rolling device and the driving device. The output shafts are supported together, and the rotation resistance of the rolling device is changed by changing the rotation speed of the output shaft to drive the transmission belt.

In some embodiments, the driving device is a generator.

In some embodiments, the rolling device includes a roller shaft rotatably connected to the frame, and rollers arranged at both ends of the roller shaft, and the rollers drive the running belt to move.

In some embodiments, a one-way bearing is provided on the rolling device, so that the rolling device can only drive the running belt to rotate around the frame in one direction.

In some embodiments, it also includes a control system arranged on the frame, the control system is connected with the driving device, controls the movement of the driving device, and the movement of the driving device provides the control system with electricity.

The present invention has the following advantages due to the adoption of the above technical scheme: 1. Since the present invention is provided with an arc-shaped support portion on the top of the frame, the running belt moving to the support portion can contact the support portion to form a corresponding inner concave arc Shaped to form a concave arc-shaped treadmill, users can realize different exercise modes by standing on different positions of the arc-shaped treadmill. 2. Since the present invention is provided with a synchronous mechanism between the rolling devices located at both ends of the frame, it can ensure the synchronous rolling of the rolling devices, so that each position of the running belt can always keep running synchronously, avoiding problems caused by different rotating speeds of the rolling devices. The running belt jumps up and down, which improves the safety of use. 3. Since the present invention is provided with a resistance adjusting device, which is connected with the control system and the rolling device, the motion resistance of the rolling device can be adjusted through the control system as required to meet different motion demands. 4. The present invention is provided with a one-way bearing on the rolling device, so that the running belt can only rotate in one direction around the frame, avoiding the occurrence of dangerous situations such as falling caused by user misuse when the running belt can rotate in both directions. 5. Since the driving device of the present invention adopts a generator, the user can transfer the kinetic energy to the generator through the rolling device and convert it into electrical energy when running, so as to supply power for the control system and realize the self-power supply of the treadmill. 6. Since the present invention is provided with a plurality of first stoppers on the inner surface of the running belt, a concave arc-shaped guide plate adapted to the shape of the support is provided below the support, and moves to the first stop at the support. The end of the bit is in contact with the bottom surface of the guide plate, so that the running belt on the upper part of the frame can be prevented from bouncing, and the wave force of the running belt can be counteracted. 7. Since the present invention is provided with second limiters on both sides of the frame, one end of the second limiter is connected to the frame, and the other end is in contact with the inner surface of the fixing belt, so that the running of the lower part of the frame can be prevented. The belt bounces to counteract the undulating force of the running belt.

The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the drawings and the following detailed description.

Description of drawings

In the drawings, unless otherwise specified, the same reference numerals designate the same or similar parts or elements throughout the several drawings. The drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in accordance with the present invention and should not be taken as limiting the scope of the present invention.

Fig. 1 is the overall structural representation of treadmill of the present invention;

Fig. 2 is the internal structure schematic diagram of treadmill of the present invention;

Fig. 3 is a schematic view of the internal structure of the treadmill of the present invention from another perspective;

Fig. 4 is the exploded schematic view of the internal structure of the treadmill of the present invention;

Fig. 5 is the frame side view of treadmill in an embodiment of the present invention;

Fig. 6 is the synchronous mechanism of treadmill of the present invention and the structural representation of running belt;

Fig. 7 is the schematic structural view of the chain plate of the running belt of the present invention;

Fig. 8 is a structural schematic diagram of a guide plate and a support portion on the frame of the present invention;

Figure 9 is a side view of the frame of the treadmill in one embodiment of the present invention;

Figure 10 is an exploded schematic diagram of the internal structure of the treadmill in one embodiment of the present invention;

Fig. 11 is a schematic diagram of the first usage mode of the treadmill of the present invention;

Fig. 12 is a schematic diagram of a second usage mode of the treadmill of the present invention;

Fig. 13 is a schematic diagram of a third usage mode of the treadmill of the present invention.

detailed description

In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Straight", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", etc. or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected: it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

As shown in Figures 1-3, a treadmill provided by the embodiment of the present invention includes a frame 1, a running belt 2, and a synchronous mechanism 3, wherein,

The two ends of the frame 1 are respectively rotated and provided with rolling devices 4;

The running belt 2 is supported on the frame 1 by the rolling device 4, and the rolling device 4 drives the running belt 2 to rotate around the frame 1 through rolling motion;

The synchronous mechanism 3 is arranged on the frame 1, drives the rolling device 4 to roll synchronously, so that each position of the running belt 2 can always keep running synchronously;

The upper part of the frame 1 is provided with a concave arc-shaped support portion 5, and the running belt 2 moved to the support portion 5 is in contact with the support portion 5 to form a concave arc-shaped treadmill.

In one embodiment, there are at least two rolling devices 4 , which are respectively arranged at two ends of the frame 1 .

In one embodiment, as shown in Figure 3 and Figure 4, the synchronous mechanism 3 includes a plurality of synchronous wheels 31 and synchronous belts 32, each synchronous wheel 31 is arranged on the same side end of each rolling device 4, and the synchronous belt 32 is nested It is outside each synchronous wheel 31 and drives each synchronous wheel 31 to rotate synchronously.

Concretely, there are at least two synchronous wheels 31, and the two synchronous wheels 31 are arranged on the same side of the frame 1, and are respectively tightly connected with the ends of the two rolling devices 4 protruding from the side frame 1, and the synchronous belt 32 is formed by The two synchronous wheels 31 are jointly supported, and under the driving action of the synchronous belt 32 , the two synchronous wheels 31 can rotate synchronously.

In order to increase transmission efficiency, the synchronous belt 32 adopts a V-ribbed belt, and a guide groove that matches the wedge-shaped guide bar on the synchronous belt 32 is opened on the synchronous wheel 31, and the contact between the guide groove and the wedge-shaped guide bar increases the contact between the synchronous wheel 31 and the The transmission capacity of the synchronous belt 32 avoids slippage.

In a preferred embodiment, the synchronous mechanism 3 further includes a tensioning wheel 33 , which is slidingly connected to the frame 1 , and the tightness of the synchronous belt 32 can be adjusted by changing the contact position between the tensioning wheel 33 and the synchronous belt 32 .

Specifically, there are at least two tensioning wheels 33, which are symmetrically arranged at both ends of the frame 1 close to the rolling device 4 respectively. There is an arc-shaped chute on the frame 1, and the tensioning wheel 33 slides in the arc-shaped chute through the rotating shaft. When the tensioning wheel 33 slides to the synchronous belt 32 near the synchronous wheel 31, the synchronous belt 32 is compressed . When the tensioning wheel 33 slides away from the synchronous wheel 31, the synchronous belt 32 is relatively relaxed.

In one embodiment, as shown in Fig. 4 and Fig. 5, support parts 5 are symmetrically arranged on two opposite inner sides of the upper part of the frame 1, and the support part 5 includes a plurality of rolling rollers arranged at intervals in a concave arc shape. Part 51, the two sides of the running belt 2 are in contact with the arc support surfaces formed by the rolling parts 51 respectively, so that the running belt 2 runs more smoothly. Wherein, the rolling member 51 is a roller or a bearing.

It should be noted that the rolling elements 51 are arranged at intervals in a concave arc shape, that is, the rolling elements 51 located at both ends of the frame 1 are higher than the rolling elements 51 located in the middle of the frame 1, and each rolling element 51 is positioned at the middle of the frame 1. The position on the frame 1 gradually decreases from the two ends to the middle. Each rolling member 51 can be arranged at equal intervals or unequal intervals, as long as it is ensured that when it is in contact with the side of the running belt 2, the running belt 2 will not sink into the interval because the interval between the rolling members 51 is too large, that is, to ensure running The end surface of the running belt 2 where the belt 2 is located at the support portion 5 can form a smooth arc-shaped support surface.

For ease of use, the upper part of the frame 1 can be set as an arc-shaped structure consistent with the shape of the support part 5. On the one hand, the aesthetics of the frame 1 can be increased, and on the other hand, it can be matched with the running belt 2 to avoid running belt 2. The frame 1 protrudes, so that the user may not be injured or tripped, thereby improving safety.

In another embodiment, the supporting part 5 includes a plurality of rotating shafts (not shown) that are horizontally rotatably connected to the upper part of the frame 1, and each rotating shaft is arranged in a concave arc at intervals to form an arc-shaped support in contact with the running belt. noodle.

It should be noted that the two ends of the rotating shaft are respectively connected to the frame 1 in rotation, and the rotating shafts are arranged at intervals in a concave arc shape, that is, the rotating shafts located at both ends of the frame 1 are higher than the rotating shafts located in the middle of the frame 1, The position of each rotating shaft on the frame 1 gradually decreases from both ends to the middle. The rotating shafts can be arranged at equal intervals or unequal intervals, as long as it is ensured that when in contact with the side of the running belt 2, the running belt 2 will not sink into the interval because the interval between the rotating shafts is too large, that is, it is ensured that the running belt 2 is positioned at the supporting position. The end face of the running belt 2 at the portion 5 can form a smooth arc support surface.

In one embodiment, as shown in Fig. 2, Fig. 4, also comprise resistance adjustment device 6, resistance adjustment device 6 comprises transmission belt 61 and driving device 62, and driving device 62 is arranged on frame 1, and transmission belt 61 is driven by rolling device 4 One end and the output shaft of the driving device 62 are jointly supported, and the rotational resistance of the rolling device is adjusted by changing the rotational speed of the output shaft.

Wherein, the driving device 62 is a generator or a motor, preferably an electromagnet generator.

In a preferred embodiment, the driving device 62 is fixedly connected to the opposite side of the frame 1 and the synchronous mechanism 3, the output shaft of the driving device 62 is arranged in parallel with the rolling device 4, and when the output shaft rotates, the driving belt 61 will exert force Transfer to the rolling device 4, so that the rolling device 4 and the output shaft rotate together.

It should be noted that when the rotation resistance of the rolling device 4 does not need to be adjusted, the output shaft is not loaded with force, and is driven by the transmission belt 61 to rotate with the rolling device 4 at the same speed, that is, the driving device 62 does not work and idle. When it is necessary to adjust the rotational resistance, the moment of inertia of the output shaft is controlled, so that the transmission belt 61 is not easy to drive the output shaft to rotate under the drive of the rolling device 4, thereby increasing the rotational resistance of the rolling device 4. Further, when the rotational resistance of the rolling device 4 increases , the rotation of the running belt 2 driven by the rolling device 4 around the frame 1 also becomes difficult, so the user's legs are required to provide more power to drive the running belt 2 and the rolling device 4 to move.

In order to increase the transmission efficiency, the transmission belt 61 adopts a V-ribbed belt, and the output shaft and the rolling device 4 are provided with guide grooves matched with the wedge-shaped guide bars, and the transmission capacity of the transmission belt 61 is increased through the friction between the guide grooves and the wedge-shaped guide bars.

In one embodiment, as shown in FIG. 1 , a holding frame 11 is provided on the frame 1 , and the holding frame 11 is used for supporting by a user.

In one embodiment, a control panel 12 is provided on the handle 11, the control panel 12 is connected to the control system, the control system is connected to the driving device 62, and the control command is sent to the control system through the control panel 12, and the control system receives the adjustment resistance Change the rotational speed or the moment of inertia of the output shaft of the driving device 62 after the instruction. In this embodiment, the driving device 62 preferably adopts a generator. When the user runs on the running belt 2, the rotation of the running belt 2 and the rolling device 4 is transmitted to the output shaft through the transmission belt 61. When the output shaft rotates, it will The kinetic energy is converted to electrical energy that powers the control system and control panel 12 . Therefore, the treadmill does not need an external power supply, and the kinetic energy generated by the user when exercising can be converted into electrical energy used by the treadmill.

It should be noted that the driving device 62 has multiple gears, and the user can adjust the resistance of the driving device 62 through the control panel 12 and the control system according to the exercise needs, preferably 3-12 gears.

In one embodiment, as shown in Figure 4, the rolling device 4 includes a roller 41 that is rotatably connected to the frame 1, and rollers 42 that are arranged at both ends of the roller 41, and the outer edge of the roller 42 is in contact with the inner side of the running belt 2. Limit contacts and drives running belt 2 to run.

Specifically, in order to improve the transmission efficiency of the rolling device 4 and the running belt 2, a circle of protrusions (as shown in FIG. 4 ) can be arranged at intervals on the two inner sides of the running belt 2, and on the outer edge of the roller 42 along the circumference A plurality of jacks are opened, and the jacks are matched with the protrusions. When the rollers 42 rotate, the protrusions of the running belt 2 moved to the rollers 42 will be inserted into the corresponding jacks and move with the jacks for a certain distance. Break out from the jack, this process can improve the transmission efficiency that the roller 42 drives the running belt 2 to rotate around the frame 1.

In one embodiment, the rolling device 4 is provided with a one-way bearing (not shown in the figure), so that the rolling device 4 can only drive the running belt 2 to rotate around the frame 1 in one direction, thereby solving the two directions of the running belt 2. Rotation may cause dangerous situations such as user's operation error and fall.

In one embodiment, as shown in Figure 4 and Figure 6, the synchronous mechanism 3 includes a fixed belt 43, the fixed belt 43 is supported on the frame 1 by the rolling device 4 and connected with the inner side of the running belt 2, so that the fixed belt 43 Exercise with running belt 2. The fixed belt 43 can improve the transmission stability of the rollers 42 and the running belt 2, while avoiding the direct contact between the rollers 42 and the running belt 2, which will cause wear and tear on the running belt 2. When the fixed belt 43 moved to the support part 5, the fixed belt 43 was in concave contact with the support part 5, so that the fixed belt 43 could fully cooperate with the running belt 2 moving to the support part 5, so that both deformation and motion state be consistent.

In one embodiment, as shown in FIG. 4 , the running belt 2 is a closed endless belt structure. In order to improve the rotation flexibility of the running belt 2, the running belt 2 can be connected to each other by a plurality of chain plates 21 to form an annular belt structure, and there is a gap between the adjacent two chain plates 21, so as to avoid running when the running belt 2 moves to the corner. Movement interference occurs between adjacent chain plates.

In one embodiment, the fixing belt 43 is a closed endless belt structure with the same width as the running belt 2 .

In another embodiment, the fixed belt 43 is two closed endless belt structures, which are respectively arranged on both sides of the frame 1, and the ends on the same side of each rolling device 4 jointly support a fixed belt 43, and the ends of each rolling device 4 The ends on the other side jointly support another fixing belt 43 .

In one embodiment, a plurality of hook-shaped first stoppers are provided on the inner side of the running belt 2 along the circumference; Concave arc-shaped guide plate 18 (as shown in FIG. 8 ); the end of the first limiting member moved to the support portion 5 is in contact with the bottom surface of the guide plate 18 . When the running belt 2 moving to the support portion 5 is about to jump up and down under the gravity of the person, the first limiting member in contact with the guide plate 18 can offset the wave force generated by the running belt 2 jumping up and down.

In one embodiment, as shown in FIG. 7 , the first limiting member 211 is arranged on the side of the chain plate 21 facing the inside of the frame 1, that is, the inner side of the chain plate 21, and the first limiting members 211 are respectively arranged on At both ends of the chain plate 21, the hook-shaped ends of the first limiting member 211 are respectively directed to the guide plate 18, so that the hook-shaped ends of the first limiting member 211 moved to the guide plate 18 can be hooked. Guide plate 18 plays the position-limiting effect that prevents running belt 2 from jumping upwards.

In one embodiment, as shown in Figure 7, positioning projections 214 can be provided at both ends of the inner surface of the chain plate 21, and the positioning projections 214 can be inserted on the fixing belt 43, so that the fixing belt 43 and the running belt 2 can be fixedly connected and move together.

In one embodiment, as shown in FIG. 6 and FIG. 9 , second limiting members 212 are respectively provided on both sides of the frame 1, one end of the second limiting member 212 is connected to the frame 1, and the second limiting member 212 is connected to the frame 1. The other end of the piece 212 is in contact with the inner surface of the fixing belt 43 that moves to the bottom of the frame 1, so as to prevent the running belt 2 from bouncing downward. The upper and lower sides of the running belt 2 are provided with limiting parts to realize the overall anti-jumping of the running belt 2 and avoid sports personnel from being injured during exercise.

Wherein, there are a plurality of second limiting members 212 , which are symmetrically and spaced apart from each other on both sides of the frame 1 .

In one embodiment, a first rolling member 213 (as shown in FIG. 7 ) is disposed at the end of the first limiting member 211, and the first rolling member 213 adopts a bearing or a roller.

In one embodiment, a handle 19 (as shown in FIG. 1 ) is provided on the frame 1 to facilitate the movement of the frame 1 .

As shown in Figure 10-12, the treadmill movement mode has the following three forms,

The first is stepping exercise. When exercising in this way, you need to adjust a certain resistance on the treadmill to exercise.

The second is walking exercise. This way is to stand in the middle of the frame 1 and perform walking exercise at the speed of the person's own movement.

The third is running exercise. A kind of fast motion when this mode takes exercise, and human body will stand on the front end of frame 1, and the speed of running is determined by the speed of motion of human body itself.

The technical effects of the present invention will be described below through two specific examples.

Example 1

As shown in FIG. 4 , the frame 1 includes a left side plate 13 and a right side plate 14 , and a plurality of connecting pipes 15 connecting the left side plate 13 and the right side plate 14 , thereby forming an integrated frame 1 . Foot pads 16 and universal wheels 17 are all provided at the bottoms of the left side plate 13 and the right side plate 14 for ease of movement.

The roller shaft 41 of the rolling device 4 is rotatably connected between the left side plate 13 and the right side plate 14 , and is located at both ends of the frame 1 . The rollers 42 at both ends of the roller 41 are located on the inner side of the left side plate 13 and the inner side of the right side plate 14 .

The running belt 2 is sleeved on the outside of the rolling device 4 at both ends of the frame 1 and supported by each roller 42 . The running belt 2 is located between the left side board 13 and the right side board 14 , and is driven by the roller 42 to rotate cyclically on the frame 1 .

The support part 5 is arranged on the opposite inner sides of the left side plate 13 and the right side plate 14. The support part 5 includes a plurality of rolling elements 51 arranged at intervals in a concave arc shape. The arc-shaped supporting surfaces formed by the rolling elements 51 are in full contact, so that the running belt 2 running to the position of the supporting part 5 is in a concave arc shape.

The two synchronous wheels 31 of the synchronous mechanism 3 are arranged on the outer side of the left side plate 13, and are respectively sleeved on the ends where the rollers 41 stretch out from the left side plate 13, and the synchronous belt 32 is sleeved on the outside of the two synchronous wheels 31 and drives the two. The synchronous wheel 31 rotates synchronously.

There are two tensioning wheels 33, which are respectively symmetrically arranged at the two ends of the left side plate 13 of the frame 1 close to the roller shaft 41.

The resistance adjusting device 6 comprises a transmission belt 61 and a driving device 62. The driving device 62 is arranged on the outer surface of the right side plate 14 of the frame 1. The transmission belt 61 is jointly supported by one end of the roller 41 and the output shaft of the driving device 62. By changing the output The rotational speed of the shaft regulates the rotational resistance of the rolling device. The driving device 62 is a generator.

A handle frame 11 is arranged on the left side plate 13 and the right side plate 14, and the handle frame 11 is used for supporting by the user. A control panel 12 is arranged on the handle frame 11, the control panel 12 is connected with the control system, the control system is connected with the drive device 62, and the control command is sent to the control system through the control panel 12, and the control system changes the drive device after receiving the command to adjust the resistance. The rotational speed or moment of inertia of the output shaft of 62. In this embodiment, the driving device 62 preferably adopts a generator. When the user runs on the running belt 2, the rotation of the running belt 2 and the rolling device 4 is transmitted to the output shaft through the transmission belt 61. When the output shaft rotates, it will The kinetic energy is converted to electrical energy that powers the control system and control panel 12 . Therefore, the treadmill does not need an external power supply, and the kinetic energy generated by the user when exercising can be converted into electrical energy used by the treadmill.

Example 2

As shown in FIGS. 6-10 , the frame 1 includes a left side plate 13 and a right side plate 14 , and a plurality of connecting pipes 15 for understanding the left side plate 13 and the right side plate 14 , thereby forming an integrated frame 1 . Foot pads 16 and universal wheels 17 are all provided at the bottoms of the left side plate 13 and the right side plate 14 for ease of movement.

The roller shaft 41 of the rolling device 4 is rotatably connected between the left side plate 13 and the right side plate 14 , and is located at both ends of the frame 1 . The rollers 42 at both ends of the roller 41 are located on the inner side of the left side plate 13 and the inner side of the right side plate 14 .

Synchronization mechanism 3 comprises fixed belt 43, and fixed belt 43 is sleeved on the outside of rolling device 4 at two ends of frame 1, and is supported by each roller 42, and running belt 2 is sleeved on the outside of fixing belt 43 and the inner surface of running belt 2 It is connected with the outer surface of the fixed belt 43 so that the fixed belt 43 and the running belt 2 can move together. The running belt 2 is located between the left side plate 13 and the right side plate 14 , driven by the rollers 42 , the fixed belt 43 and the running belt 2 can rotate cyclically together on the frame 1 .

Wherein there are two fixing straps 43, which are located on the left side plate 13 and the right side plate 14 of the frame 1 respectively.

The support part 5 is arranged on the opposite inner sides of the left side plate 13 and the right side plate 14. The support part 5 includes a plurality of rolling elements 51 arranged at intervals in a concave arc shape, and the fixing belts 43 are respectively formed with the rolling elements 51. The arc-shaped support surface of the belt is in full contact, so that the running belt 2 running to the position of the support portion 5 is concave arc-shaped.

On the inner surface of the running belt 2, a plurality of hook-shaped first limiters 211 are arranged in the circumferential direction; below the support part 5, a concave arc-shaped guide plate adapted to the shape of the support part 5 is arranged. 18 (as shown in FIG. 8 ); the end of the first limiting member moved to the support portion 5 is in contact with the bottom surface of the guide plate 18 . When the running belt 2 moving to the support portion 5 is about to jump up and down under the gravity of the person, the first limiting member in contact with the guide plate 18 can offset the wave force generated by the running belt 2 jumping up and down.

The first limiter 211 is arranged on the side of the chain plate 21 towards the inside of the frame 1, that is, the inner surface of the chain plate 21, and the first limiter 211 is respectively arranged at both ends of the chain plate 21, the first limiter The hook-shaped ends of 211 point to the guide plate 18 respectively, so that the hook-shaped ends of the first limiter 211 moved to the guide plate 18 can hook the guide plate 18, so as to prevent the running belt 2 from jumping upwards. Limiting effect.

Positioning protrusions 214 are provided at both ends of the inner surface of the chain plate 21, and the positioning protrusions 214 can be inserted on the fixing belt 43, so that the fixing belt 43 and the running belt 2 can be fixedly connected and move together.

Both sides of the frame 1 are respectively provided with a second limiting member 212, one end of the second limiting member 212 is connected with the frame 1, and the other end of the second limiting member 212 is connected with the fixing part moving to the bottom of the frame 1. The inner surface of the belt 43 is in contact, so as to prevent the running belt 2 from bouncing downward. The upper and lower sides of the running belt 2 are provided with limiting parts to realize the overall anti-jumping of the running belt 2 and avoid sports personnel from being injured during exercise.

Wherein, there are a plurality of second limiting members 212 , which are symmetrically and spaced apart from each other on both sides of the frame 1 .

In one embodiment, a first rolling member 213 (as shown in FIG. 7 ) is disposed at the end of the first limiting member 211, and the first rolling member 213 adopts a bearing or a roller.

The resistance adjusting device 6 comprises a transmission belt 61 and a driving device 62. The driving device 62 is arranged on the outer surface of the right side plate 14 of the frame 1. The transmission belt 61 is jointly supported by one end of the roller 41 and the output shaft of the driving device 62. By changing the output The rotational speed of the shaft regulates the rotational resistance of the rolling device. The driving device 62 is a generator.

A handle frame 11 is arranged on the left side plate 13 and the right side plate 14, and the handle frame 11 is used for supporting by the user. A control panel 12 is arranged on the handle frame 11, the control panel 12 is connected with the control system, the control system is connected with the drive device 62, and the control command is sent to the control system through the control panel 12, and the control system changes the drive device after receiving the command to adjust the resistance. The rotational speed or moment of inertia of the output shaft of 62. In this embodiment, the driving device 62 preferably adopts a generator. When the user runs on the running belt 2, the rotation of the running belt 2 and the rolling device 4 is transmitted to the output shaft through the transmission belt 61. When the output shaft rotates, it will The kinetic energy is converted to electrical energy that powers the control system and control panel 12 . Therefore, the treadmill does not need an external power supply, and the kinetic energy generated by the user when exercising can be converted into electrical energy used by the treadmill.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of its various changes or modifications within the technical scope disclosed in the present invention. Replacement, these should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (15)

1. a kind of treadmill, including frame, treadmill belt, lazy-tongs, wherein,

The two ends of the frame are rotated respectively is provided with tourelle；

The treadmill belt is supported in the frame by the tourelle, and the tourelle drives the treadmill belt around institute State frame rotation；

Tourelle synchronous rolling described in the lazy-tongs driving two, makes each position of the treadmill belt keep synchronous operation；

The top of the frame is provided with the supporting part in indent arc, the treadmill belt moved at the supporting part and institute State supporting part and contact the running platform to be formed in indent arc.

2. treadmill as claimed in claim 1, wherein, the lazy-tongs include fixing band, and the fixing band passes through described Tourelle is supported in the frame and is connected with the medial surface of the treadmill belt, makes the fixing band and the treadmill belt one With motion.

3. treadmill as claimed in claim 2, wherein, it is circumferentially arranged on the medial surface of the treadmill belt to have multiple In the first locating part of hook solid；Be provided with below the supporting part with the supporting part shape be adapted be in imploded arcs The guide plate of shape；The end of first locating part moved at the supporting part is contacted with the bottom surface of the guide plate.

4. treadmill as claimed in claim 3, wherein, the second locating part is respectively arranged with the both sides of the frame, it is described One end of second locating part is connected with the frame, bottom of the other end of second locating part with moving to the frame The medial surface contact of the fixing band.

5. treadmill as claimed in claim 3, wherein, the end of first locating part is provided with the first rolling Part.

6. treadmill as claimed in claim 1, wherein, the lazy-tongs include synchronizing wheel and timing belt, the synchronizing wheel The same side end of each tourelle is arranged on, the timing belt is nested with outside each synchronizing wheel and driven each described Synchronizing wheel synchronous axial system.

7. treadmill as claimed in claim 6, wherein, the lazy-tongs also include expansion tightening wheel, the expansion tightening wheel with it is described Housing slide is connected, and the elasticity of the timing belt is adjusted by changing the contact position of the expansion tightening wheel and the timing belt.

8. treadmill as claimed in claim 7, wherein, the expansion tightening wheel at least two is separately positioned on the frame two End is at the tourelle.

9. treadmill as claimed in claim 1, wherein, the supporting part includes multiple being rotatably connected on the upper rack Rotating shaft, each rotating shaft is intervally arranged the curved support face to be formed and be contacted with the treadmill belt in indent arc.

10. treadmill as claimed in claim 1, wherein, respectively symmetrically set on the top two-phase inner surface sides of the frame The supporting part is equipped with, the supporting part includes multiple the second rolling members being intervally arranged in indent arc, the treadmill belt Curved support face of two inner side edges respectively with each second rolling member formation is contacted.

11. treadmill as claimed in claim 1, wherein, in addition to drag regulator, the drag regulator is including passing Dynamic band and drive device, the drive device are arranged in the frame, the transmission belt by one end of the tourelle and The output shaft of the drive device is supported jointly, drives the transmission belt to change the rolling by the rotating speed for changing the output shaft The rotary resistance of dynamic device.

12. treadmill as claimed in claim 11, wherein, the drive device is generator.

13. the treadmill as described in claim any one of 1-12, wherein, the tourelle includes connecting with the gantry rotation The roller bearing connect, and the roller at the roller bearing two ends is arranged on, the roller drives the treadmill belt motion.

14. the treadmill as described in claim any one of 1-12, wherein, unilateral bearing is provided with the tourelle, The tourelle is set to drive the treadmill belt around the frame single direction rotation.

15. the treadmill as described in any one of claim 11, wherein, in addition to the control system being arranged in the frame, The control system is connected with the drive device, controls the motion of the drive device, the motion of the drive device is institute State control system and electric power is provided.