BE1027836A1 - Handstand Roller Skating Fitness Training Device - Google Patents

Abstract

A pear tree posture roller skating fitness training device is provided, which includes a support platform and portable roller skating equipment, the support platform being disposed above from the ground, the support platform being provided with a slide cavity, the lower plate of the slide cavity being provided with a slide opening, the part of the lower plate on either side of the a slide opening being provided with a zigzag structure, the portable roller skating equipment comprising portable roller skates, each of the portable roller skates comprising a foot attachment component and a pulley component, the attachment component foot being connected to the pulley component, the pulley component comprising an upper pulley group and a lower pulley group, the upper pulley group being located on the lower plate of the slide cavity, the lower group of pulleys being located below the slide cavity, and the upper group of pulleys and the lower group of pulleys being connected to each other; and a balancing component being disposed between the upper pulley group and the lower pulley group, and one end of the balancing component being engaged and cooperating with the zigzag structure. It can improve the training effect and interest for the user. It makes roller skating training stable and allows the user to take a break and rest during training.

Description

Handstand Roller Skating Fitness Training Device

TECHNICAL FIELD The present invention relates to the technical field of sports equipment, in particular a device for training roller skating in a pear tree posture.

TECHNICAL BACKGROUND The information on the technical background part is given only to better understand the general context of the present invention and should not necessarily be taken as an acknowledgment or suggestion in any form meaning that this information is art. existing already known to those skilled in the art. Although the upright posture is a significant sign to differentiate between humans and other animals. But once humans walk upright, the effect of gravity causes three drawbacks: the first is that the blood flow passes from the horizontal to the vertical way, which leads to insufficient blood supply to the brain and overloading of the system. cardiovascular. The mild effects are baldness, dizziness, gray hair, lack of energy, fatigue and premature aging; and the serious effects are brain and heart disease. The second is that the heart and intestines move downward under the effect of gravity. It causes many cases of gastrointestinal and cardiac ptosis, and an accumulation of fat in the abdomen and thighs, causing obesity in the abdomen and waist. The third is that the muscles of the neck, shoulders, back and waist are subjected to too great a load under the effect of gravity, causing excessive tension, and worsening of diseases such as muscle fatigue, muscle fatigue, muscle strain cervical spondylosis, and lumbar spondylosis and periarthritis of the shoulder. To overcome the shortcomings of human evolution, drugs are not sufficient, and physical exercises are essential, the best exercise being is the headstand. Existing pear posture training devices consist of supporting the human body by a support component to achieve a pear posture, or suspending the feet directly from a horizontal bar by hooks, which has the disadvantages 019967 of being simple, boring and dangerous. Or they support the human body, then hold the legs up to achieve upright pear tree posture, then perform a walk by tractor, but this process cannot provide good training effect for the user. DESCRIPTION OF THE INVENTION In order to solve the above problems in the existing techniques, the present invention aims to provide a device for training roller skating in pear tree posture. The present invention provides a pear tree posture roller skating fitness training device to meet the pear tree posture movement needs, with stable structure and interest.

To solve the above problems, the technical solution according to the present invention is as follows: A pear tree posture roller skating fitness training device is provided, which includes a support platform and portable training equipment. roller skating, the support platform being disposed above the ground, the support platform being provided with a slide cavity, the bottom plate of the slide cavity being provided with a slide opening, the portion of the bottom plate on either side of the slide opening being provided with a zigzag structure, the portable roller skating equipment comprising portable roller skates, each of the portable roller skates comprising a. foot attachment component and a pulley component, the foot attachment component being connected to the pulley component, the pulley component comprising an upper pulley group and a pulley group lower, with the upper pulley group located on the lower plate of the slide cavity, the lower pulley group located below the slide cavity, and the upper pulley group and lower pulley group being connected. to one another; A balancing component being disposed between the upper pulley group and the lower pulley group, and one end of the balancing component being engaged and cooperating with the zigzag structure.

It solves the danger problem of existing handstand training and offers a 2921/5347 new method of handstand training, improving safety and stability during training. The benefit of handstand training for the user can be improved. One or more technical solutions of the present invention exhibit the following beneficial effects: The invention provides a pear tree posture roller skating fitness training device, which promotes blood circulation of the user and assists the user in recover from fatigue through handstand training. Training in a handstand posture improves the user's physical fitness and improves blood circulation, especially for mental workers who often maintain a seated posture for work. The pear tree posture roller skating device, walking and sliding with the feet, can make the pear tree posture training more interesting, allows the whole human body training because the hands and feet can be exercised at the same time, and presents a certain training difficulty, which offers a challenge. The design of the supporting platform and the portable roller skates of the device makes the whole roller skating process relatively stable, provides stability during roller skating, and reduces unnecessary slipping and shaking of the feet of the device. user. The device's handlebar design allows the user to hold it during training to improve stability and to pause while holding the handlebars. The design of a plurality of slide cavities allows for multi-person competition or training with flexibility.

DESCRIPTION OF THE FIGURES The present application will be better understood by reference to the accompanying figures which construct part of the description of the present invention, and the illustrative embodiments of the present invention and its descriptions are only for the purpose of explaining the present invention, instead. limit the present invention.

Figure 1 is a side view of the 2921/9347 Roller Skate Fitness Trainer assembly in pear tree posture. Figure 2 is a structural view of the whole balancing component from both points of view; Figure 3 is a sectional view of two adjacent slideway cavities; Figure 4 is a top view of the slide; Figure 5 is a side view of the portable roller skates and the slide cavity; Fig. 6 is a detailed view of the handlebar part; FIG. 7 is a view of the inspection opening.

In the figures, 1- Support platform; 2-Slide cavity; 3-Slide cavity opening; 4-Zigzag structure; 5-Upper pulley group; 6-Lower pulley group; 7-Counterweight; 8-Balancing cylinder; 9-Rope to pull; 10-Foot support plate; 11-Lower leg support plate; 12-Foot strap; 13-Lower leg strap; 14-Seat belt; 15-Amount; 16-Handlebars; 17-Seat support plate.

DETAILED EMBODIMENT It should be noted that the detailed description below is only illustrative in order to better understand the present invention. It should be noted that, unless otherwise indicated, all technical and scientific terms used in the present invention have the same meaning as those well known to those skilled in the art.

It should be noted that the terms used here are intended to describe embodiments, instead of limiting the illustrative embodiments according to the present application. Unless otherwise indicated, the singular form includes the plural, furthermore, the words used herein "include" and / or "include", indicate the presence of the characteristic, step, work, device, component and / or the combination of these.

A handstand roller skating fitness training device is provided, which includes a support platform and portable roller skating equipment, the support platform being disposed above the ground, the support platform being provided above the ground. support platform being provided with a slide cavity, the lower plate of the slide cavity being provided with a slide opening, the part of the lower plate on either side of the opening 2 21 / Slide 9347 being provided with a zigzag structure, the portable roller skating equipment comprising portable roller skates, each of the portable roller skates comprising a foot attachment component and a pulley component, the component of which is 5. foot attachment being connected to the pulley component, the pulley component comprising an upper pulley group and a lower pulley group, the upper pulley group being located on the lower plate of the glide cavity ssière, the lower group of pulleys being located below the slideway cavity, and the upper group of pulleys and the lower group of pulleys being connected to each other; A balancing component being disposed between the upper pulley group and the lower pulley group, and one end of the balancing component being engaged and cooperating with the zigzag structure.

In some embodiments of the present invention, the upper pulley group is provided with two or four symmetrical pulleys, and the lower pulley group is provided with two or four pulleys, which are respectively located on either side of the pulley. zipper opening.

In some embodiments of the present invention, the distance between the upper group of pulleys and the lower group of pulleys is greater than the thickness of the lower plate of the slide cavity.

In some embodiments of the present invention, the balancing component comprises a counterweight and a balancing cylinder, clearance is provided on either side of the balancing component and the slide opening, the counterweight is disposed in the direction of the slide opening, a dovetail-shaped structure is disposed at the end in the advancing direction of the counterweight, the balancing cylinder is disposed at the front end in the direction of advance, the balancing cylinder is arranged vertically and the two ends of the balancing cylinder are movably connected with the counterweight.

Optionally, the diameter of the balancing cylinder is greater than the diameter of the counterweight body, and less than or equal to the maximum thickness of one end of the dovetail-shaped structure of the counterweight.

In some embodiments of the present invention, the portable roller skating equipment further comprises a pull rope, the two ends of the pull rope being respectively connected to the pulleys of the lower and hanging pulley group. naturally.

In some embodiments of the present invention, each of the portable roller skates includes a foot support plate, a lower leg support plate, a foot strap, and a lower leg strap, the foot strap being connected to the foot support plate, and the lower leg strap being connected to the lower leg support plate.

In some embodiments of the present invention, the zigzag structure on the bottom plate of the slide cavity is triangular in zigzag shape, and a catheter and hypotenuse are formed on the bottom plate of the slide cavity, 1 ' hypotenuse being located at the side in the direction of advance of the catheter, and the balancing component being engaged and cooperating with the catheter.

In some embodiments of the present invention, the support platform is provided with 1 to 4 groups of slide cavities, each group of slide cavities comprising two slide cavities and each slide cavity being connected and cooperating with one. portable roller skate.

In some embodiments of the present invention, the portable roller skating equipment further includes a seat belt, the seat belt being connected to two portable roller skates.

In some embodiments of the present invention, the slideway cavity comprises two linear slideway cavities and two arcuate slideway cavities, the two linear slideway cavities being disposed in parallel, the two arcuate slideway cavities being respectively arranged on either side of the two linear slideway cavities and connected respectively to the two ends of the two linear slideway cavities.

In certain embodiments of the present invention, it comprises a plurality of uprights, the uprights being respectively connected to the ground and to the support platform. In some embodiments of the present invention, it includes a handlebar, which is located below and on either side of the linear slide cavity.

In some embodiments of the present invention, the handlebar comprises a 2021/5347 arc handlebar and a straight handlebar disposed in opposition, the arc handlebars being located between two groups of adjacent slide recesses or located within the interior of the handlebars. 'a slideway cavity, the two ends of the arched handlebars being connected to the ground, and the straight handlebars being located between two adjacent uprights.

In some embodiments of the present invention, the right handlebar includes an upper handlebar and a lower handlebar, the upper handlebars being located above the lower handlebars, and an L-shaped handlebar being connected between the upper handlebars and the lower handlebars.

In some embodiments of the present invention, it further comprises a stepped seat support plate, the seat support plate being connected to the post.

As described in the technical background, handstand training has many beneficial health effects, especially for many people who often maintain a seated posture for work.

Training in pear posture can improve the blood circulation of this population, in pear posture, the cerebrovascular vessels are forced to expand and contract to the maximum, which can improve vascular penetrability and thus reduce the frequency of appearance of various cerebrovascular diseases.

Regular pear tree posture training allows the brain and blood circulation to adapt well to complex conditions and thus promotes improved intelligence and adaptability of the user.

Among the existing headstand workouts, some consist of keeping the user in a headstand posture, or hanging the feet directly from a horizontal bar with hooks, or holding the legs on two parallel bars, so that the user can. move on the parallel bars, or some equipment uses a tractor, so that the user can move in a headstand posture.

Although the workouts can achieve a maintained headstand posture, they lack the exercise process and lack interest.

In addition, there is insufficient security during training.

As shown in Fig. 1, the present invention provides a pear tree posture roller skating fitness training device, which comprises a support platform 1 and portable roller skating equipment, the support platform being disposed above the ground, the support platform being provided with a slide cavity 2, the lower plate of the slide cavity 2 being provided with a slide opening 3, and the part of the lower plate on either side of the slide opening 3 being provided with a zigzag structure 4. The support platform 1 is arranged above the ground and is provided with a slide cavity 2 , the slide cavity 2 provides a path and protection for roller skating, so that the user can roller skate along the slide cavity 2 in a pear tree posture. Portable roller skating equipment includes portable roller skates, each of the portable roller skates includes a foot attachment component and a pulley component, the foot attachment component being connected to the pulley component, the foot attachment component being connected to the pulley component, the foot attachment component being connected to the pulley component. pulley comprising an upper pulley group 5 and a lower pulley group 6, the upper pulley group 5 being located on the lower plate of the slide cavity 2, the lower pulley group 6 being located below the slide cavity. slide 2, and the upper group of pulleys 5 and the lower group of pulleys 6 being connected to each other. The pulley component is disposed passing through the slide cavity, and the upper pulley group 5 and the lower pulley group 6 form a sliding structure. The user's foot is connected to the foot attachment component and the foot attachment component is connected to the pulley component, when the user's leg applies dynamic force forward, the pulley can be driven forward. forward to slide along the slide recess, and when the user is in a pear tree state, the two feet alternately slide forward to achieve forward movement.

It comprises a balancing component, in particular, the balancing component is disposed between the upper group of pulleys 5 and the lower group of pulleys 6, one end of the balancing component being engaged and cooperating with the zigzag structure. The balancing component is disposed passing through the slide opening and cooperates with the zigzag structure. When the other foot is in the other slide cavity and the balancing component is engaged in the zigzag structure, this is equivalent to providing the other foot with a dynamic force to advance, therefore, this movement towards | The forward alternately achieves continuous forward movement, thereby forming a continuous and efficient form of movement.

Because the lower plate engaged in the slide cavity 2 is disposed between the upper pulley group 5 and the lower pulley group 6, generally when the user is in the upright pear tree state, the pulleys of the group of the upper pulleys 5 come into direct contact with the lower plate, and when the user is in a crouching pear state, the user moves his feet to walk forward and the upper pulley group 5 and the group of lower pulleys 6 come into contact with the lower plate, in this process, a squat walking process will be performed.

In addition, when longitudinal movement occurs, the upper BH2021 / 5347 lower pulley groups press against the upper and lower surfaces of the lower plate, thus providing stability while walking. A form of handstand roller skating training is provided, which helps to improve the value of athletic training. In addition, a structural form including portable roller skates, a balancing component and a pulley component is provided, which improves the stability of sports training in headstand posture. The upper pulley group has two or four symmetrical pulleys, and the lower pulley group has two or four pulleys, which are respectively located on either side of the slide opening. Since the pulleys can slide along the bottom plate, and by arranging two or four pulleys to form a symmetrical arrangement of the pulleys, the sliding can be along a straight line as much as possible, or two symmetrical pulleys can keep stability under force during the turn.

The distance between the upper pulley group 5 and the lower pulley group 6 is greater than the thickness of the lower plate of the slide cavity. A distance is provided between the upper pulley group 5 and the lower pulley group 6 in order to provide space for longitudinal movement, when the user walks in a squatting or semi-squatting posture, during lifting of the foot, the group. of lower pulleys 6 contacts the lower surface of the lower plate, thus providing a degree of freedom of upward movement, so that the user can move forward freely. If the distance between the upper pulley group and the lower pulley group is equal to the thickness of the lower plate, a swing may be impossible, in some states of walking in a squatting posture, it is considered that the human body has to move with the help of an external force, therefore, a distance is essential for better walking.

The balancing component comprises a counterweight 7 and a balancing cylinder 8, a clearance is provided on either side of the balancing component and the slide opening, the counterweight is arranged in the direction of the slide opening, a dovetail-shaped structure is arranged at the end in the advancing direction of the counterweight 7, the balancing cylinder is arranged at the front end in the advancing direction, the cylinder balancing 8 is arranged vertically and the two ends of the balancing cylinder are movably connected with the counterweight. Due to the end of the balancing component being dovetail-shaped and clearance being provided on either side of the balancing component and the slide opening when the pulley group arrives at one position, the foot can apply force to one of the two zigzags during sliding, so that the dovetail-shaped structure of the counterweight 7 can block the zigzag structure to stop and provide a dynamic force to move forward. The function of the balancing cylinder 8 is to guide and maintain stability. The two ends of the balancing cylinder 8 are movably connected to the counterweight. Therefore, the balancing cylinder 8 can rotate around itself, during the forward movement of the balancing component, when the balancing component moves away to one side, the balancing cylinder. 8 comes into contact with the slide opening and the balancing cylinder 8 rotates around itself to some extent, which plays a guiding and stabilizing role for all portable roller skates, and when the balancing cylinder touches the side walls of the slide opening, a certain reaction force will be applied to portable roller skates, which reduces the sliding instability caused by the relatively large slide opening. In addition, the shock between the portable roller skates and the two ends of the slide opening will be reduced. A rotation around itself occurs during the shock, which reduces the instability of the human body caused by the shock.

Optionally, the diameter of the balancing cylinder 8 is greater than the diameter of the counterweight body, and less than or equal to the maximum thickness of one end of the dovetail-shaped structure of the counterweight.

The portable roller skating equipment further comprises a pull rope, the two ends of the pull rope being respectively connected to the pulleys of the lower pulley group and naturally hanging. The pull cord hangs naturally to provide tension to the hand when maintaining a squatting condition.

Each of the portable roller skates includes a foot support plate 10, a lower leg support plate 11, a foot strap 12, and a lower leg strap 13, the foot strap 12 being connected to the foot plate. foot support 10, and the lower leg strap 13 being connected to the lower leg support plate 11. Each of the portable roller skates includes a foot support plate 10 and a foot strap 12, so that the feet can insert into it stably, and the foot strap here can be of any other type capable of retaining and fixing. The lower leg support plate and lower leg strap have the function of protecting the ankle joint and fixing the lower part to the knee to prevent injury and blocking of the forward movement of the leg .

The zigzag structure on the lower plate of the slide cavity is triangular in zigzag shape, and a catheter and hypotenuse are formed on the lower plate of the slide cavity, the hypotenuse being located at the side in the direction of. advance of fA + 2021/5347 catheter, and the balancing component being engaged and cooperating with the catheter.

The zigzag structure has a catheter and a hypotenuse, with the catheter located at the end of the forward direction, which favors providing power to the balancing component to move forward.

The support platform is provided with 1 to 4 groups of slide cavities, each group of slide cavities comprising two slide cavities 2 and each slide cavity being connected and cooperating with a portable roller skate.

Each group of slideway cavities is provided with two slideway cavities, which can cooperate respectively with two feet.

The number of slide cavity groups can be more than one, which allows competition of several people while avoiding inter-influence, and a distance is provided between two adjacent slide cavity groups.

The portable roller skating equipment further includes a seat belt 14, the seat belt 14 being connected to two portable roller skates.

The shape of the seat belt can be changed, mainly to ensure the safety of the human upper body.

The slideway cavity 2 comprises two linear slideway cavities and two arcuate slideway cavities, the two linear slideway cavities being arranged in parallel, the two arcuate slideway cavities being respectively arranged on either side of the two track cavities. linear slideways and respectively connected to the two ends of the two linear slideway cavities.

Arc slide recesses provide a turn slide, similar to a playground track.

The arrangement of the balancing cylinder 8 allows better turns, avoiding a shock between the counterweight and the slide opening and making the turn smoother.

The length of the counterweight 7 can be adjusted according to the angle of turn of the arc slide, thus allowing better turns.

It further comprises a plurality of uprights 15, the uprights 15 being respectively connected to the ground and to the support platform.

The plurality of posts support the support platform.

In this way, the support platform can better allow the roller skater to glide smoothly.

It further comprises a handlebar 16, which is located below and on either side of the linear slide cavity.

During the workout, when the user feels uncomfortable due to a long period of handstand posture maintenance, he can go to the handlebars and hold the handlebars to take a rest.

The handlebar 16 includes an arched handlebar and a straight handlebar disposed in opposition, the 7021/5347 arcuate guide being located between two groups of adjacent slide cavities or located within one of the slide cavities, and the handlebar right being located between two adjacent uprights. Thanks to the arched front sight arrangement, both ends of the arch are connected to the ground, making it easier for the hand to hold the front sight at different heights.

The right handlebar comprises an upper handlebar and a lower handlebar, the upper handlebars being located above the lower handlebars, and an L-shaped handlebar being connected between the upper handlebars and the lower handlebars. The shape of the right handlebar forms a sitting posture, so the user can sit sideways on the right handlebars for a little rest.

It further comprises a stepped seat support plate 17, the seat support plate 17 being connected to the post 15. The seat support plate is disposed at one side and is used during preparation for loading the equipment. portable or while unloading portable equipment.

As shown in Figure 7, the lower plate of the slide cavity is provided with an intervention section, the lower plate of the intervention section being removably connected to the slide cavity with bolts generally. This facilitates intervention on the slideway cavities. The intervention section is set to be shorter to avoid affecting the slippage of the trainer.

The examples below are given by way of example preferably, rather than limiting the present invention, and modifications and variations on the present invention by those skilled in the art are of course possible. Any modifications, equivalent replacements and improvements which respect the spirit and principles of the present invention should be included within the scope of the protection of the present invention.

Claims (10)

CLAIMS BE2021 / 5347 A pear tree posture roller skating fitness training device, characterized in that it comprises a support platform and portable roller skating equipment, the support platform being disposed above from the ground, the support platform being provided with a slide cavity, the lower plate of the slide cavity being provided with a slide opening, the part of the lower plate on either side of the slide opening being provided with a zigzag structure, the portable roller skating equipment comprising portable roller skates, each of the portable roller skates comprising a foot attachment component and a pulley component, the attachment component foot being connected to the pulley component, the pulley component comprising an upper pulley group and a lower pulley group, the upper pulley group being located on the lower plate of the slide cavity e, the lower group of pulleys being located below the slide cavity, and the upper group of pulleys and the lower group of pulleys being connected to each other; A balancing component being disposed between the upper pulley group and the lower pulley group, and one end of the balancing component being engaged and cooperating with the zigzag structure. 2. Roller skating fitness training device in pear tree posture according to claim 1, characterized in that, the upper group of pulleys is provided with two or four symmetrical pulleys, and the lower group of pulleys is provided with two. or four pulleys, which are respectively located on either side of the slide opening; Or, the distance between the upper pulley group and the lower pulley group is greater than the thickness of the bottom plate of the slide cavity. 3. Roller skating fitness training device in pear tree posture according to claim 1, characterized in that, the balancing component comprises a counterweight and a balancing cylinder, the counterweight is arranged in the direction of l slide opening, a dovetail-shaped structure is arranged at the end in the advancing direction of the counterweight, the balancing cylinder is arranged at the front end in the advancing direction, the cylinder balance is arranged vertically and the two ends of the 5021/5347 balancing cylinder are movably connected with the counterweight; Optionally, the diameter of the balancing cylinder is greater than the diameter of the counterweight body, and less than or equal to the maximum thickness of one end of the dovetail-shaped structure of the counterweight. The pear tree posture roller skating fitness training device according to claim 1, characterized in that the portable roller skating equipment further comprises a pull rope, both ends of the pull rope. being respectively connected to the pulleys of the lower pulley group and naturally hanging. S. A headstand roller skating fitness training device according to claim 1, characterized in that, each of the portable roller skates comprises a foot support plate, a lower leg support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a leg support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate, a foot support plate and a foot support plate. foot strap and a lower leg strap, the foot strap being connected to the foot support plate, and the lower leg strap being connected to the lower leg support plate. A pear tree posture roller skating fitness training device according to claim 1, characterized in that, the zigzag structure on the lower plate of the slide cavity is triangular in zigzag shape, and a catheter and a hypotenuse are formed on the lower plate of the slide cavity, the hypotenuse being located at the side in the advancing direction of the catheter, and the balancing component being engaged and cooperating with the cathet. A handstand roller skating fitness training device according to claim 1, characterized in that, the support platform is provided with 1 to 4 groups of slide cavities, each group of slide cavities. comprising two slide cavities and each slide cavity being connected and cooperating with a portable roller skate; Or the portable roller skating equipment further includes a seat belt, the seat belt being connected to two portable roller skates. The pear tree posture roller skating fitness training device according to claim 1, characterized in that, the slide cavity comprises two linear slide cavities and two arched slide cavities, the two linear slide cavities. 2921/9347 being arranged in parallel, the two arcuate slideway cavities being disposed respectively on either side of the two linear slideway cavities and respectively connected to the two ends of the two linear slideway cavities. 9. Roller skating fitness training device in a pear tree posture according to claim 1, characterized in that it further comprises a plurality of uprights, the uprights being respectively connected to the ground and to the support platform. . 10. A roller skating fitness training device in a pear tree posture according to claim 1, characterized in that it further comprises a handlebar, which is located below and on either side of the cavity. linear slide; Preferably, the handlebar comprises an arc handlebar and a straight handlebar arranged in opposition, the arc handlebar being located between two groups of adjacent slide cavities or located within one slide cavity, both ends of the slideway. arched handlebars being connected to the ground, and the right handlebars being located between two adjacent uprights. Preferably, the right handlebar comprises an upper handlebar and a lower handlebar, the upper handlebars being located above the lower handlebars, and an L-shaped handlebar being connected between the upper handlebars and the lower handlebars. Preferably, it further comprises a stepped seat support plate, the seat support plate being connected to the upright.