CN113694466A - Body-building cycle capable of swinging - Google Patents

Abstract

The invention relates to a body-building vehicle capable of swinging; the device comprises a vehicle body, a vehicle frame, a swinging mechanism, a rotating shaft assembly, a magnetic control group adjusting connecting rod mechanism, a cam locking mechanism and an electronic watch bracket; the frame can swing left and right relative to the frame; the magnetic control group adjusting connecting rod mechanism comprises a connecting rod assembly and a driving rod assembly which are movably arranged on the frame; the cam locking mechanism comprises a driving assembly and a cam locking piece hinged to the vehicle body; the electronic watch support comprises a fixed seat arranged on the frame, a support body and a mounting plate assembly; the safety of the magnetic brake is improved, the control magnetic resistance adjustment and braking of the magnetic brake are simplified, and the user experience is improved.

Description

Body-building cycle capable of swinging

Technical Field

The invention relates to the technical field of sports fitness equipment, in particular to a swinging exercise bike.

Background

As the city rhythm of fast life, the economic level are increasingly improved and the attention of people to the self health is also improved, more and more office workers can build a gymnasium or add sports equipment at home after going off duty so as to enhance the self physical quality; in which sports equipment such as a bicycle, such as a spinning bike, a water-resistance bike, etc., is preferred, and these sports equipment generally includes several parts, such as a frame, a footrest assembly, a seat, an armrest assembly, a seat cushion assembly, etc.; the user may sit on the seat cushion with his body in front, then hold the armrest apparatus with his hands and step on the footrest assembly to shape and reduce the fat in a manner that simulates riding a bike to maintain the desired movement of the body.

The existing structure of body-building equipment for vehicles generally has the advantages that a vehicle body and a frame are fixed, so that the effect of riding a bicycle in a straight line can be simulated, and the training is mainly performed on muscle movement on thighs, so that other parts can not obtain corresponding training effects; in addition, the applicant finds that if the vehicle body is idle in the research and development process, the vehicle body can swing at any time, so that the safety is seriously reduced; in addition, the electronic watch supports on the exercise bicycle on the market are all fixed, in other words, the electronic watch cannot be adjusted in viewing angle when being mounted on the supports, and different people have different statures and postures, so that the best viewing angle can be achieved by adjusting to the best viewing angle; in addition, a magnetic control adjusting mechanism arranged on the exercise bicycle in the market is basically divided into two parts, namely a magnetic control assembly and an adjusting mechanism, wherein the magnetic control assembly mainly controls the magnitude of magnetic control resistance to realize different levels of training intensity, and the adjusting mechanism carries out brake adjustment on a driving device to ensure safety; the two parts are generally respectively arranged on the vehicle body and are controlled by two independent driving parts, so that the structure is complex, the space of the vehicle body is occupied, and the operation is difficult for a trainer who uses the vehicle initially.

Disclosure of Invention

The invention aims to provide a swinging exercise bicycle; the safety of the magnetic brake is improved, the control magnetic resistance adjustment and braking of the magnetic brake are simplified, and the user experience is improved.

In order to achieve the purpose, the main technical solution of the invention is a swinging exercise bicycle, which is characterized by comprising a bicycle body, a bicycle frame, a swinging mechanism, a rotating shaft assembly, a magnetic control group adjusting link mechanism, a cam locking mechanism and an electronic watch bracket; the frame can be fixedly placed in a designated place, and the vehicle body is movably arranged on the frame and can swing left and right relative to the frame; the vehicle body comprises a vehicle body and a swing shaft cylinder, and the swing shaft cylinder is arranged in the vehicle body; the rotating shaft assembly is arranged on the frame, the end part of the swinging shaft cylinder is movably connected with the rotating shaft assembly, and the vehicle body swings around the axis of the swinging shaft cylinder; the swing mechanism comprises a fixed plate and a swing plate, the fixed plate is arranged on the frame, the swing plate is arranged on the vehicle body, a plurality of elastic components are arranged between the fixed plate and the swing plate, and the swing mechanism can limit the swing angle of the vehicle body; the magnetic control group adjusting link mechanism comprises a link assembly and a driving rod assembly which are movably arranged on the frame, the bottom end of the driving rod assembly is hinged to the end part of the link assembly, the driving rod assembly can move downwards relative to the vehicle body in the axial direction or rotate in the circumferential direction, and a magnetic control brake piece is arranged at the other end of the link assembly; the magnetic control brake piece comprises a brake piece and a magnet, the drive rod component moves axially to drive the connecting rod component to link, and the brake piece is abutted against the circumferential surface of the flywheel or keeps avoiding gaps with the flywheel based on the linkage of the connecting rod component; the magnet controls the magnetic control resistance of the flywheel by the circumferential autorotation fine adjustment connecting rod assembly of the driving rod assembly; the cam locking mechanism comprises a driving assembly and a cam locking piece hinged to the vehicle body, and the bottom end of the driving assembly is arranged on the circumferential wall surface of the cam locking piece so as to drive the cam locking piece to rotate relative to the hinged point; the cam locking piece comprises a locking part, and the locking part rotates based on the movement of the driving assembly and rotates to abut against and is positioned with a locking block arranged on the frame to limit the swing of the vehicle body; the electronic watch support comprises a fixed seat, a support body and a mounting plate assembly, wherein the fixed seat, the support body and the mounting plate assembly are arranged on a frame, the support body is hinged to the fixed seat, the upper part of the arc-shaped wall surface of the fixed seat is sunken to form a limiting groove, a limiting plate is arranged at the bottom end of the support body, the end part of the limiting plate is positioned in the limiting groove, the support body rotates within the limiting groove range, and the support body stops rotating until the end part of the limiting plate abuts against the groove wall of the limiting groove; the mounting plate assembly is arranged at the end part of the support body and faces the vehicle body, the mounting plate assembly is used for mounting an electronic watch, and the electronic watch can be adjusted in a vertical and horizontal displacement mode relative to the support body

In some examples, the driving rod assembly comprises a driving rod, a driving handle fixedly connected to the top of the driving rod, and an elastic component for assisting the driving rod to reset; the vehicle body is provided with a hollow shaft body, the driving rod penetrates through the hollow shaft body, the elastic part is sleeved on a rod body of the driving rod and is positioned in the hollow shaft body, the driving rod is sleeved with a check ring, one end of the elastic part acts on the check ring, and the other end of the elastic part acts on the inner bottom of the hollow shaft body; the check ring comprises a C-shaped clamp and a gasket, a ring of annular groove formed by sinking is formed in the rod wall of the driving rod, a plurality of salient points are arranged on the inner wall surface of the C-shaped clamp and can be clamped into the annular groove, and the gasket is pressed by an elastic component to be in butt fit with the bottom surface of the C-shaped clamp; and a rubber shaft sleeve is sleeved on the rod body close to the bottom end of the driving rod and is in interference fit with the bottom shaft hole of the hollow shaft body.

In some examples, the connecting rod assembly comprises a main rod, a front bending frame and a rear bending frame, the front bending frame comprises two first V-shaped bending plates which are symmetrically connected, the symmetrical positions of the ends of the two first V-shaped bending plates are respectively provided with an adjusting long hole, the bottom end of the driving rod is provided with a threaded section, the threaded section is sleeved with a coupling, the two ends of the coupling are respectively and movably arranged in the adjusting long holes, and the coupling is subjected to limited displacement along the adjusting long holes based on the circumferential autorotation of the driving rod; the back frame of bending includes that two symmetries meet the second V-arrangement bend the board, and two second V-arrangements bend between the board axial direction and be equipped with the brake spare, two second V-arrangements bend and set up a plurality ofly on the radial relative lateral wall of board the magnet, the relative brake spare of magnet is closer to in the flywheel.

In some examples, the bracket body comprises an elbow having a certain radian, a short pipe and a transverse shaft pipe for hinging with the fixed seat; the bottom end of the bent pipe is fixedly arranged on the transverse shaft pipe, and the top end of the bent pipe is provided with a supporting pipe used for connecting the mounting plate assembly; the bottom of the short pipe is provided with the limiting plate, the length of the limiting plate is larger than the transverse pipe diameter of the short pipe, two ends of the limiting plate are respectively positioned in the limiting grooves, and one end of the short pipe is fixedly arranged on the transverse shaft pipe.

In some examples, the fixing seat is a U-shaped seat, the closed end of the U-shaped seat is fixedly connected to the frame, and the circumferential arc-shaped wall surfaces of the two radially opposite free ends respectively include a section of limiting area, which is the limiting groove; the transverse shaft tube is hinged in the cavity of the U-shaped seat through a pin shaft.

In some examples, the mounting plate assembly comprises a fixed plate and a movable plate, wherein the wall surface of the fixed plate is welded on the supporting pipe, the movable plate is detachably connected to the fixed plate, the movable plate is used for mounting an electronic watch, the movable plate can be adjusted up and down relative to the fixed plate, and the electronic watch can be adjusted left and right relative to the movable plate; the movable plate is opposite to the fixed plate, two ends of the fixed plate are respectively provided with a longitudinal adjusting hole, the movable plate is provided with a plurality of transverse adjusting holes, and the middle parts of the fixed plate and the movable plate are respectively provided with a wire passing hole.

In some examples, the actuating rod includes a rod body section and a pulling section, the pulling section is provided with an elastic member, one end of the elastic member is connected to the rod body section, and the other end of the elastic member is hinged to the cam lock member.

In some examples, the cam locking mechanism further comprises a pipe plug which is fixedly connected with the vehicle body and is provided with a moving channel for the driving rod to pass through; two wall surfaces of the moving channel, which are opposite in radial direction, are provided with lock holes, a bolt is elastically arranged on the rod body of the driving rod, and the bolt is partially exposed out of the rod body and is in an arc surface; in the driving rod moving process, the lock tongue can be clamped into the lock hole.

In some examples, the frame comprises a base formed by an L-shaped square pipe and a bent pipe arranged at the transverse end of the L-shaped square pipe, the rotating shaft assembly comprises a rear rotating shaft group arranged on the bent pipe at the transverse end of the L-shaped square pipe and a front rotating shaft group, and two ends of the swinging shaft barrel are respectively movably connected to the front rotating shaft group and the rear rotating shaft group; the swing shaft cylinder comprises a front shaft cylinder and a rear shaft cylinder, the front shaft cylinder and the rear shaft cylinder are positioned on the same axis, the front shaft cylinder is arranged at the front part of the vehicle body, and the rear shaft cylinder is arranged at the tail part of the vehicle body; the front shaft barrel is connected with the front rotating shaft group, the rear shaft barrel is connected with the rear rotating shaft group, and the front rotating shaft group and the rear rotating shaft group have the same structure, wherein the rear rotating shaft group comprises a shaft barrel, a bearing in the shaft barrel and a rotating shaft arranged on the inner ring of the bearing; one end of the rotating shaft extends to the inner part of the rear end of the swing shaft cylinder, a rotating disc is fixedly connected to the inner part of the end of the rotating shaft, the end part of the rotating shaft is in butt joint with the rotating disc, and the rotating shaft in the front rotating shaft is connected with the front end of the swing shaft cylinder.

In some examples, one side of the fixed plate is fixedly arranged on the longitudinal wall of the L-shaped square pipe through welding, one side of the swinging plate is fixedly arranged on the vehicle body through welding and can swing along with the swinging of the vehicle body, the front shaft barrel is arranged at the middle position between the swinging plate and the fixed plate, and the swinging plate and the fixed plate are respectively opposite in the radial direction; two elastic components are respectively arranged at the upper end and the lower end of the fixed plate, two gaskets are arranged at the positions of the swinging plates corresponding to the elastic components, and when the swinging plates swing left and right along with the vehicle body, the upper gaskets and the lower gaskets are switched back and forth to be extruded or separated from the upper elastic components and the lower elastic components.

The invention adopts the technical scheme to realize the following effects:

1. the same driving rod drives different directions to control magnetic control resistance and braking, so that the same function foundation is ensured, the structure is simplified, and the use is simple and convenient; in addition, the occupied space of the vehicle body can be effectively reduced, so that the vehicle body can break the design barrier and can be more compact; the magnet and the brake are simultaneously arranged on the same rear bending frame;

2. on one hand, the tilting mechanism can rotate along a hinge point with the fixed seat to adjust the tilting angle; on the other hand, the electronic watch can be adjusted up, down, left and right to ensure that the screen of the electronic watch can find the most comfortable visual eyes suitable for different users;

3. the exercise bicycle has the advantages that a user can swing the bicycle body when riding the exercise bicycle, and during the swinging process, the training of road conditions such as turning and the like can be simulated more vividly, so that the exercise of thigh muscles during pedaling can be improved, and meanwhile, the exercise bicycle has remarkable effects on waist exercise and balance sense training of a human body;

4. through the cooperation of pin and cam locking piece, the axial displacement linkage articulated portion's of pin rotation for locking portion rotates along its pin joint, rotates as for the butt joint of locking piece, and it is fixed with the frame to inject automobile body, promotes exercise bicycle and prevents that it from rocking and accidentally injure training person or other relevant personnel when idle.

Drawings

Figure 1 is a schematic structural view of an embodiment of the present invention,

FIG. 2 is a schematic structural view of the magnetron group adjusting linkage mechanism of the embodiment in FIG. 1 arranged on a vehicle body,

figure 3 is a schematic structural view of the magnetron group adjustment linkage mechanism of the embodiment of figure 2,

figure 4 is an exploded view of the drive rod assembly of the embodiment of figure 3,

figure 5 is a schematic view of the structure of the support of the electronic watch of the embodiment of figure 1,

figure 6 is a schematic structural view of the fixing base of the embodiment of figure 5,

figure 7 is a schematic structural view of the bracket body and mounting plate assembly of the embodiment of figure 5,

figure 8 is an exploded view of the structure of the embodiment of figure 7,

figure 9 is a schematic diagram of the construction of the cam lock mechanism of the embodiment of figure 1,

figure 10 is an exploded view of the cam lock mechanism of the embodiment of figure 9,

figure 11 is a schematic structural view of the pipe plug of the embodiment of figure 10,

figure 12 is a schematic diagram of the drive assembly of the embodiment of figure 10,

figure 13 is an unlocked condition of the cam lock mechanism of the embodiment of figure 9,

figure 14 is a locked condition of the cam lock mechanism of the embodiment of figure 9,

figure 15 is a side-to-side swinging condition of the vehicle body of the embodiment of figure 1 relative to the frame,

figure 16 is a side-to-side swinging condition of the vehicle body of the embodiment of figure 1 relative to the frame,

figure 17 is a schematic structural view of the oscillating mechanism of the embodiment of figures 1, 15 and 16,

figure 18 is the connection structure relationship of the internal structure of the rear rotating shaft group and the swinging shaft cylinder of the embodiment of figures 1, 15 and 16,

in the figure: the device comprises a vehicle body 1, an L-shaped square pipe 2, an inclined pipe 3, a connecting rod 4, a bent pipe 5, a rear rotating shaft group 6, a swinging shaft cylinder 7, a magnetron group adjusting connecting rod mechanism 8, an electronic watch bracket 9, a cam locking mechanism 10, a swinging mechanism 11, an electronic watch 12, a driving rod 13, an elastic piece 14, a pipe plug 15, a hinged part 16, a hanging lug 17, a locking part 18, a steel ball 19, a hook body 20, a guide plate 21, a limit column 22, a locking hole 23, a locking block 24, a bent pipe 25, a transverse shaft pipe 26, a short pipe 27, a bracket 28, a limit plate 29, a supporting pipe 30, a fixed plate 31, a longitudinal adjusting hole 311, a movable plate 32, a wire passing hole 33, a hanging arm 34, a transverse adjusting hole 35, a fixed seat 36, a free end 37, a driving rod 38, a threaded section 39, an annular groove 40, a C-shaped hoop 41, a gasket 42, a hollow shaft body 43, an elastic component 44, a rubber shaft sleeve 45, a front bending frame 46, a main rod 47, a rear bending frame 48, a member 49, a swing shaft, Magnet 491, coupling 492, iron sheet 50, rubber column 51, fixing plate 52, swinging plate 53, rotating shaft 55, turntable 56, and bearing 57.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.

It is to be understood that the terms "a" and "an" are to be interpreted as meaning that a number of one element may be one in one embodiment or multiple in another embodiment, and the terms "a" and "an" are not to be interpreted as limiting the number.

The first embodiment is as follows:

referring to fig. 1 to 18 of the drawings of the specification of the present invention, an exercise bicycle according to a preferred embodiment of the present invention includes a bicycle body 1, a bicycle frame, a swing mechanism 11, a rotating shaft assembly, a magnetic control set adjusting linkage mechanism 8, a cam locking mechanism 10 and an electronic watch support 9, wherein the bicycle body 1 is movably disposed on the bicycle frame and can swing left and right relative to the bicycle frame, the swing mechanism 11 is used for assisting the bicycle body 1 to limit a rotation amplitude, and the magnetic control set adjusting linkage mechanism 8 is used for adjusting and controlling a magnetic control resistance of a flywheel and locking or unlocking the movement of the flywheel; the cam locking mechanism 10 is used for limiting the swing of the vehicle body 1, and the electronic watch bracket 9 can be provided with an electronic watch 12 screen; the vehicle body 1 comprises a vehicle body, and a pedal assembly, a flywheel, a belt pulley, a handrail assembly and the like which are arranged on the vehicle body, wherein the specific structures of the pedal assembly, the belt pulley, the flywheel and the handrail assembly are not described any more, and the existing structure can be referred; the frame comprises a base formed by an L-shaped square tube 2, an inclined tube 3 used for butting an electronic watch support 9 and a bending tube 5 arranged at the transverse end of the L-shaped square tube 2, wherein the base is connected with the end part of the inclined tube 3 through a connecting rod 4, the longitudinal end of the L-shaped square tube 2 is provided with a locking block 24, the locking block 24 is used for being matched with a cam locking mechanism 10, the cam locking mechanism 10 is arranged on the frame and swings along with the swinging of the frame, the frame is fixedly arranged at a required position because the locking block 24 is arranged on the L-shaped square tube 2, the locking block 24 is relatively fixed, and when a locking part 18 of the cam locking mechanism 10 is connected with the locking block 24, the frame is still relative to the frame; the main innovation points of the technical scheme are as follows: the exercise bicycle comprises a bicycle body 1, a bicycle frame, a pedal and a pedal, wherein the bicycle body 1 and the bicycle frame are fixed in general, and can only simulate the effect of riding a straight line; secondly, under the condition that the exercise bicycle is not used, the swing between the bicycle body 1 and the bicycle frame is limited through the cam locking mechanism 10, so that the safety of the exercise bicycle can be greatly improved, and accidents such as collision injury and the like can be prevented; moreover, when the electronic watch 12 is mounted on the electronic watch support 9, the vertical and horizontal adjustment and the rotation adjustment can be carried out, so that the requirements of users are met better, the visual angle of the users of the electronic watch 12 required by the swinging of the vehicle body 1 can be matched, and the using satisfaction degree and the comfort degree of the users are improved; in addition, the rotation of the flywheel and the resistance can be accurately adjusted and controlled by the magnetic control group adjusting link mechanism 8, so that the requirements of different strength training are met, different training grades are corresponded to different people, and pertinence, adaptability and gradual improvement are achieved. Of course, in other embodiments, an exercise bicycle is provided, which includes the body 1, the frame, the swing mechanism 11 and the rotation shaft assembly, and the exercise bicycle only needs to be capable of swinging the body 1 left and right relative to the frame.

Specifically, the magnetic control group adjusting link mechanism 8 comprises a link assembly movably arranged on the frame and a driving rod 38 assembly, the bottom end of the driving rod 38 assembly is hinged to the end of the link assembly, the driving rod 38 assembly can move or rotate circumferentially relative to the axle, wherein the axial movement comprises upward movement and downward movement, and a magnetic control brake member 49 is arranged at the other end of the link assembly; the magnetic control brake piece 49 comprises a brake piece 49 and a magnet 491, the drive rod 38 component axially moves to drive the linkage component to link, and the brake piece 49 is pressed against the circumferential surface of the flywheel or keeps an avoiding gap with the flywheel based on the linkage of the linkage component; the magnet 491 is moved by the circumferential autorotation fine adjustment connecting rod component of the driving rod 38 component to control the magnetic control resistance of the flywheel; the driving rod 38 assembly includes a driving rod 38 and a driving handle, and the above mentioned axial movement includes two ways, one of which is that the driving handle is hinged with the driving rod 38, and the driving rod 38 is driven to move axially by turning the driving handle; secondly, the driving handle is fixedly connected with the driving rod 38, and the driving rod 38 is driven to move axially by pulling the driving handle up and down; in this embodiment, when the driving rod 38 assembly moves down axially, the braking member 49 abuts against the circumferential surface of the flywheel to limit the movement of the flywheel; when the driving rod 38 assembly rotates circumferentially, the bottom end of the driving rod 38 assembly displaces in a limited way relative to the hinged part of the driving rod 38 assembly and the connecting rod assembly, so that the contact area between the magnet 491 and the flywheel is finely adjusted to adjust the resistance; the axial downward movement and the circumferential rotation are further operations of the driving rod 38 in an initial state, and certainly do not exclude the operations of the two which are overlapped, namely, the subsequent deformation is implemented by firstly pressing down the driving rod 38 and then performing the circumferential rotation, or firstly performing the circumferential rotation and then pressing down, the technical scheme of the deformation can be known by taking the scheme as a basic scheme, the driving rod 38 assembly further comprises an elastic component 44 for assisting the resetting of the driving rod 38, the vehicle body is provided with a hollow shaft body 43, the driving rod 38 penetrates through the hollow shaft body 43, the elastic component 44 is sleeved on the rod body of the driving rod 38 and is positioned in the hollow shaft body 43, the driving rod 38 is sleeved with a check ring, one end of the elastic component 44 acts on the check ring, and the other end acts on the inner bottom of the hollow shaft body 43; the retaining ring can be welded on the body of rod of actuating lever 38, also detachable connection on the body of rod, in this embodiment, the retaining ring includes C shape clamp 41 and gasket 42, the pole wall of actuating lever 38 is equipped with the sunken annular groove 40 that forms of round, the internal face of C shape clamp 41 is equipped with many places bumps, the bump can be embedded into in the annular groove 40, gasket 42 extrude through elastomeric element 44 and with the bottom surface butt cooperation of C shape clamp 41, its advantage that sets up C shape clamp 41 lies in need not additionally to increase technology or material, only need on actuating lever 38 assigned position open a annular groove 40 can. And the characteristics of high hardness and tensile resistance of the C-shaped clamp 41 are utilized, and the gasket 42 is matched to play a good limiting role for the elastic part 44. The rubber shaft sleeve 45 is sleeved on the rod body close to the bottom end of the driving rod 38, the rubber shaft sleeve 45 is in interference fit with the bottom shaft hole of the hollow shaft body 43, and the rubber shaft sleeve 45 is arranged, so that in the resetting process of the driving rod 38, the rubber shaft sleeve 45 can effectively reduce the collision force with the bottom shaft hole of the hollow shaft body 43, the driving rod 38 can be protected on one hand, and the buffer effect can be realized on the other hand; when the interference fit is clamped into the bottom shaft hole of the hollow shaft body 43, the driving rod 38 is stabilized to prevent the driving rod from shaking in the hollow shaft body 43. The connecting rod assembly comprises a main rod 47, a front bending frame 46 and a rear bending frame 48, the other end of the front bending frame 46 is hinged to the bottom end of the driving rod 38 assembly, the end part of the rear bending frame 48 is hinged to the other end of the main rod 47, the frame body of the rear bending frame 48 is hinged to a supporting base pipe, and the magnetic control brake piece 49 is arranged on the rear bending frame 48; the front bending frame 46 comprises two first V-shaped bending plates which are symmetrically connected, the symmetrical positions of the end parts of the two first V-shaped bending plates are respectively provided with an adjusting long hole, the bottom end of the driving rod 38 is provided with a threaded section 39, the threaded section 39 is sleeved with a coupling 492, two ends of the coupling 492 are respectively movably arranged in the adjusting long holes, and the coupling 492 performs limited displacement along the adjusting long holes based on the circumferential autorotation of the driving rod 38; the rear bending frame 48 comprises two second V-shaped bending plates which are symmetrically connected, the brake member 49 is arranged between the two second V-shaped bending plates in the axial direction, a plurality of magnets 491 are arranged on the side walls of the two second V-shaped bending plates which are opposite in the radial direction, and the magnets 491 are closer to the flywheel relative to the brake member 49; the second V-arrangement is bent the board and is formed an intersection point with the supporting seat pipe, the distance that the pin joint was less than the distance that the pin joint was bent the board top to the second V-arrangement is bent the board bottom to the second V-arrangement, even if the advantage that so sets up lies in that even if the coupling 492 adjusts along with actuating lever 38 fine motion limit in adjusting the slot hole, also can make back bending frame 48 have relatively great swing range, magnet 491 constantly when overlapping with the flywheel face, its magnetic control dynamics strengthens gradually, flywheel circumference wall constantly gets into between two second V-arrangement bending boards and offsets with brake 49.

The electronic watch support 9 comprises a fixed seat 36 arranged on the frame, a support body and a mounting plate assembly, wherein the support body is hinged to the fixed seat 36 and can rotate in a limited mode relative to the fixed seat 36; the mounting plate assembly is arranged at the end part of the support body and faces the vehicle body 1, the mounting plate assembly is used for mounting an electronic watch 12, the electronic watch 12 can be adjusted in a vertical and horizontal displacement mode relative to the support body, the electronic watch 12 is used for displaying data of the vehicle body 1, and the data of the vehicle body 1 comprise magnetic control resistance gear level, a vehicle body 1 swing angle, burning calorie data and movement duration; the electronic watch 12 is mounted on the electronic watch support 9 to mainly realize two functions, namely, the electronic watch can rotate along a hinge point with the fixed seat 36 to adjust the tilting angle; another aspect is to enable the electronic watch 12 to be adjusted up, down, left, right to ensure that the screen of the electronic watch 12 finds the eye that fits what different users find most comfortable. Specifically, the upper part of the arc-shaped wall surface of the fixing seat 36 is recessed to form a limiting groove, the bottom end of the bracket body is provided with a limiting plate 29, the end part of the limiting plate 29 is located in the limiting groove, the bracket body is limited to rotate within the range of the limiting groove, and the bracket body stops rotating until the end part of the limiting plate 29 abuts against the groove wall of the limiting groove; the scheme includes that one embodiment is that the fixed seat 36 is an L-shaped bracket, the bracket body is hinged with the longitudinal wall surface of the L-shaped bracket, and only one end of the limit plate 29 extends into the limit groove and can rotate along with the bracket body to rotate in the limit groove; the embodiment provides another solution that the bracket body comprises an elbow 25 with a certain radian, a short pipe 27 and a transverse shaft pipe 26 for hinging with a fixed seat 36, the bottom end of the elbow 25 is fixedly arranged on the transverse shaft pipe 26, and the top end thereof is provided with a supporting pipe 30 for connecting a mounting plate assembly; the bottom of the short pipe 27 is provided with the limiting plate 29, the length of the limiting plate 29 is greater than the transverse pipe diameter of the short pipe 27, one end of the short pipe 27 is fixedly arranged on the transverse shaft pipe 26, the fixing seat 36 is a U-shaped seat, the closed end of the U-shaped seat is fixedly connected to the frame, two radially opposite circumferential arc-shaped wall surfaces of the free ends 37 respectively comprise a section of limiting area, and the limiting area is the limiting groove; the transverse axle tube 26 is hinged in the cavity of the U-shaped seat through a pin shaft; the two ends of the limiting plate 29 are respectively located in the limiting grooves, and the technical scheme enables the two ends of the limiting plate 29 to be located in the limiting grooves, and the fluency and the stability of the offsetting positioning are effectively improved when the limiting plate rotates relative to the scheme that one end of the limiting plate is located in the limiting groove.

As to the above-mentioned specific embodiment of the up-down-left-right adjustment, the mounting plate assembly includes a stationary plate 31 and a movable plate 32, the wall surface of the fixed plate 31 is fixedly connected to the support tube 30, the movable plate 32 is detachably connected to the fixed plate 31, the movable plate 32 is used for mounting the electronic watch 12, the movable plate 32 can be adjusted up and down relative to the fixed plate 31, the electronic watch 12 can be adjusted left and right relative to the movable plate 32, under the technical scheme, the wall surface of the fixed plate 31 is fixedly connected with the supporting tube 30 by means of welding and the like, the fixed plate 31 can be detachably connected by means of buckles and the like, a plurality of clamping holes can be longitudinally arranged on the fixed plate 31, the movable plate 32 can be buckled on different longitudinal clamping holes to realize up-and-down movement adjustment relative to the fixed plate 31, the movable plate 32 can be provided with a plurality of transverse sliding grooves and the like, and the electronic watch 12 is provided with a sliding block to realize left-and-right movement adjustment; in the embodiment, the movable plate 32 is provided with a longitudinal adjusting hole 311 respectively corresponding to the fixed plate 31 and at both ends of the fixed plate 31, the movable plate 32 is provided with a plurality of transverse adjusting holes 35, the middle parts of the fixed plate 31 and the movable plate 32 are provided with wire passing holes 33, that is, the movable plate 32 and the fixed plate 31 are arranged on the longitudinal adjusting hole 311 through bolts to realize detachable and up-and-down movement adjustment; the electronic watch 12 and the movable plate 32 are also arranged on the transverse adjusting hole 35 through bolts to realize the left-right movement adjustment of the electronic watch 12; in addition, the wire through hole 33 can effectively lead the inner parts of the circuit driven plate 32, the fixed plate 31, the supporting tube 30 and the bracket main body of the electronic watch 12 to pass through, thereby preventing unnecessary trouble caused by exposed circuit, improving safety and eliminating hidden danger which is not beneficial to safety; in this embodiment, when the movable plate 32 is moved together with the electronic timepiece 12 during the vertical movement adjustment, the movable plate is further fixed by screwing a bolt when the movable plate is moved to a target position; a bracket 28 for placing articles is arranged at the other end of the short pipe 27, the notch of the bracket 28 faces upwards, the bracket 28 is positioned under the electronic watch 12, and the bracket 28 can be used for placing articles such as towels and mobile phones, so that the articles can be conveniently stored and placed when a user exercises; the rear wall of the electronic watch 12 is provided with a hanging groove, the top end part of the fixed plate 31 is bent and extended to form a hanging arm 34 which is used for extending into the hanging groove, the hanging arm 34 can effectively lift the electronic watch 12, and the stability of the electronic watch 12 mounted on the mounting plate assembly is further improved. The top edge of the movable plate 32 is provided with a recessed portion, the hanging arm 34 is located in the recessed portion, the recessed portion can effectively limit the left-right shaking degree of the wall hanging, and if the recessed portion is not provided, the hanging arm 34 can shake to a certain extent when lifting the electronic watch 12, which is not beneficial to the installation of the electronic watch 12.

The car body 1 comprises a swing shaft barrel 7, the rotation shaft assembly comprises a rear rotation shaft group 6 arranged on a bending pipe 5 at the transverse end of an L-shaped square pipe 2 and a front rotation shaft 55 group, the rear rotation shaft group 6 and the front rotation shaft 55 group are identical in structure, the rear rotation shaft group 6 comprises a shaft barrel and a bearing 57 arranged in the shaft barrel, the rotation shaft 55 is arranged at the inner ring of the bearing 57, one end of the rotation shaft 55 extends to the inner part of the rear end of the swing shaft barrel 7, a turntable 56 is fixedly connected to the inner part of the end, the end part of the rotation shaft 55 is butted with the turntable 56, the rotation shaft 55 in the front rotation shaft 55 is connected with the front end of the swing shaft barrel 7, under the technical scheme, the swing shaft barrel 7 can be a complete barrel and is transversely arranged in the car body or divided into two independent barrels which are positioned on the same axis and transversely arranged at the two ends of the car body, the latter scheme is adopted in the embodiment, the swing shaft cylinder 7 comprises a front shaft cylinder and a rear shaft cylinder, the front shaft cylinder and the rear shaft cylinder are positioned on the same axis, the front shaft cylinder is arranged at the front part of the vehicle body, and the rear shaft cylinder is arranged at the tail part of the vehicle body, so that the design benefit can break the design limitation of the vehicle body frame, in other words, if a complete round pipe is arranged, a certain space is reserved for installing the round pipe on the vehicle body, and the design of the vehicle body is bound to have certain limitation; the scheme of two independent round pipes is adopted, so that the reserved position of the car body does not need to be considered when the car body shape and the internal structure are designed, and the design barrier of the car body is broken; in addition, in the present embodiment, the axis of the swing shaft cylinder 7 has a certain inclination angle with respect to the horizontal ground, that is, the height of the front rotating shaft 55 group from the ground is less than the height of the rear rotating shaft group 6 from the ground, a sensor for sensing the rotating angle is arranged on the front rotating shaft 55 group, the signal of the sensor is communicated with the electronic watch 12, during the swing process of the user, the rotation of the rotating shaft 55 is monitored by the sensor and the signal is fed back to the electronic watch 12, and the electronic watch 12 is presented on the screen in a data form; the swing mechanism 11 includes a swing plate 5332 and a fixed plate 52, one side of the fixed plate 52 is fixedly welded to the longitudinal wall of the L-shaped square tube 2, one side of the swing plate 5332 is fixedly welded to the vehicle body and can swing along with the swing of the vehicle body, the front axle cylinder is located at the middle position between the swing plate 5332 and the fixed plate 52, the swing plate 5332 and the fixed plate 52 are respectively opposite in radial direction, the upper and lower ends of the fixed plate 52 are respectively provided with two elastic members 44, the elastic members 44 can be air bag balls, rubber columns 51, pressure springs and the like, two gaskets 42 are arranged at the position of the swing plate 5332 corresponding to the elastic members 44, in this embodiment, the gaskets 42 are iron sheets 50, and when the swing plate 5332 swings left and right along with the vehicle body, the upper and lower gaskets 42 are switched back and forth to press or separate from the upper and lower elastic members 44, for example, when the vehicle body swings to the right, the upper pad 42 is pressed against the upper elastic member 44, and the lower pad 42 is separated from the lower elastic member 44, whereas the lower pad is pressed against the upper pad. The mode that the gasket 42 is abutted against the elastic component 44 can effectively limit that the user cannot continuously swing when swinging to a certain angle, and further effectively protect the safety of the user in the using process.

The cam locking mechanism 10 comprises a driving assembly and a cam locking piece hinged to the vehicle body, wherein the bottom end of the driving assembly is arranged on the circumferential wall surface of the cam locking piece so as to drive the cam locking piece to rotate relative to a hinged point; the driving assembly is movably arranged on the vehicle body and can axially move relative to the vehicle body, the cam locking piece comprises a locking part 18, the locking part 18 rotates based on the movement of the driving assembly and rotates to be abutted against a locking block 24 arranged on the vehicle frame to limit the vehicle body to swing, and the axial movement of the cam locking piece comprises upward movement or downward movement; specifically, the driving assembly comprises a driving rod 13 and a handle fixedly arranged at the top end of the driving rod 13, the driving rod 13 is driven to move downwards in the axial direction relative to the vehicle body 1 by pressing the handle, and the vehicle body is unlocked, in the scheme, the driving rod 13 can be a complete rod body, the bottom of the rod body is hinged with the cam locking piece, and the cam locking piece is driven to rotate around a hinged point; in the present embodiment, the driving rod 13 includes a rod body segment and a pulling segment, the pulling segment is provided with an elastic member 14, one end of the elastic member 14 is connected to the rod body segment, and the other end of the elastic member 14 is hinged to the cam locking member, the advantage of the hinge joint using the elastic member 14 is that the elastic member has a certain ductility, i.e. deformability, because as shown in the figure, the driving assembly has a certain inclination with respect to the vehicle body, and in the process of pulling the driving assembly axially, if a complete rod body is used, the inclination angle needs to be calculated relatively accurately to enable the axial pulling to be smooth, and if the elastic member 14 is used for pulling, a certain error is allowed, and the elastic member 14 can also move smoothly in the pulling deformation process of the axial movement; two opposite side walls in the radial direction of the rod body section are respectively provided with a guide plate 21, the two guide plates 21 respectively extend to the pulling section, a pin shaft is arranged between the two guide plates 21 on the pulling section, one end of the elastic element 14 is arranged on the pin shaft, the elastic element 14 is arranged between the two guide plates 21, and the guide plates 21 can ensure that the elastic element 14 deforms and is pulled in the guiding direction; the bottom end of the guide plate 21 is provided with an L-shaped notch, the bottom end of the elastic part 14 is provided with two hook bodies 20 in a radial direction opposite to each other, and the hook bodies 20 are hooked in the L-shaped notch, so that the design can prevent the elastic part 14 from generating large impact force in the rebound process and can limit the rebound amplitude of the elastic part 14; in addition, the cam locking mechanism 10 further comprises a pipe plug 15, the pipe plug 15 is connected and fixed on the vehicle body, the pipe plug 15 is provided with a moving channel through which the driving rod 13 can pass, the driving rod 13 moves downwards along the moving channel to a fixed position and then is locked in the moving channel, and the pipe plug 15 can effectively guide the moving direction of the driving rod 13 on one hand and can prevent the driving rod 13 from shaking in the moving process on the other hand; the locking mode is that two wall surfaces of the moving channel which are opposite in radial direction are provided with lock holes 23, a bolt is elastically arranged on the rod body of the driving rod 13, the bolt is partially exposed out of the rod body, and the exposed part is an arc surface; in the moving process of the driving rod 13, the lock tongue can be clamped into the lock hole 23, under the technical scheme, the elastic arrangement means that the lock tongue can move relative to the rod body, when the lock tongue is pressed, the lock tongue can move towards the rod body, and when the lock tongue is not pressed, the part of the lock tongue is exposed out of the bulge; the technical scheme only requires that the exposed part is an arc-shaped surface, and the structural shape of the unexposed part is not required, so that the arc-shaped surface can smoothly slide on the inner wall of the pipe plug 15; in this embodiment, the latch is a steel ball 19; a limiting column 22 for placing the pipe plug 15 to be pulled out from the vehicle body is arranged on one side wall of the pipe plug 15; when the pipe plug 15 is mounted on the vehicle body, the limiting column 22 is clamped in the vehicle body; the cam locking piece further comprises a hinge part 16, the locking part 18 and the hinge part 16 are integrally formed, a hanging lug 17 is arranged on the circumferential wall surface of the hinge part 16, the bottom end of the driving assembly is hinged to the hanging lug 17, the locking part 18 is provided with a U-shaped locking groove, and the opening of the U-shaped locking groove faces to the locking block 24; through the axial lifting of driving rod 13, make cam locking piece round the pin joint and rotate, make the U-shaped locked groove rotate round the pin joint thereupon, rotate to the locking piece 24 and imbed to the U-shaped locked groove in and offset the combination, make the static fixed of automobile body 1 relative frame.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention.

The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims (10)

1. A body-building vehicle capable of swinging is characterized by comprising a vehicle body (1), a vehicle frame, a swinging mechanism (11), a rotating shaft assembly, a magnetic control group adjusting link mechanism (8), a cam locking mechanism (10) and an electronic watch support (9); the frame can be fixedly placed in a designated place, and the vehicle body (1) is movably arranged on the frame and can swing left and right relative to the frame; the vehicle body (1) comprises a vehicle body and a swing shaft cylinder (7), wherein the swing shaft cylinder (7) is arranged in the vehicle body; the rotating shaft assembly is arranged on the frame, the end part of the swinging shaft cylinder (7) is movably connected with the rotating shaft assembly, and the vehicle body swings around the axis of the swinging shaft cylinder (7); the swing mechanism (11) comprises a fixed plate (52) and a swing plate (53), the fixed plate (52) is arranged on the frame, the swing plate (53) is arranged on the vehicle body, a plurality of elastic components (44) are arranged between the fixed plate (52) and the swing plate (53), and the swing mechanism (11) can limit the swing angle of the vehicle body; the magnetic control group adjusting link mechanism (8) comprises a link assembly and a driving rod (38) assembly which are movably arranged on the frame, the bottom end of the driving rod (38) assembly is hinged to the end part of the link assembly, the driving rod (38) assembly can move downwards in the axial direction or rotate in the circumferential direction relative to the vehicle body, and a magnetic control brake piece (49) is arranged at the other end of the link assembly; the magnetic control brake piece (49) comprises a brake piece (49) and a magnet (491), the drive rod (38) component moves axially to drive the linkage component to link, and the brake piece (49) is abutted against the circumferential surface of the flywheel or keeps an avoidance gap with the flywheel based on the linkage of the linkage component; the magnet (491) controls the magnetic control resistance of the flywheel by the circumferential autorotation fine adjustment connecting rod component of the driving rod (38) component; the cam locking mechanism (10) comprises a driving assembly and a cam locking piece hinged to the vehicle body, and the bottom end of the driving assembly is arranged on the circumferential wall surface of the cam locking piece so as to drive the cam locking piece to rotate relative to the hinged point; the driving assembly is movably arranged on the vehicle body and can move downwards in the axial direction relative to the vehicle body, the cam locking piece comprises a locking part (18), and the locking part (18) rotates based on the movement of the driving assembly and is rotated to be abutted against a locking block (24) arranged on the vehicle frame to limit the vehicle body to swing; the electronic watch support (9) comprises a fixed seat (36) arranged on a frame, a support body and a mounting plate assembly, the support body is hinged to the fixed seat (36), the upper part of the arc-shaped wall surface of the fixed seat (36) is sunken to form a limiting groove, a limiting plate (29) is arranged at the bottom end of the support body, the end part of the limiting plate (29) is positioned in the limiting groove, the support body rotates within the limiting groove range, and the support body stops rotating until the end part of the limiting plate (29) abuts against the groove wall of the limiting groove; the mounting plate assembly is arranged at the end part of the support body and faces the vehicle body (1), the mounting plate assembly is used for mounting an electronic watch (12), and the electronic watch (12) can be adjusted in a vertical and horizontal displacement mode relative to the support body.

2. Exercise bike according to claim 1, characterized in that the driving rod (38) assembly comprises a driving rod (38), a driving handle fixedly connected to the top of the driving rod (38), and an elastic member (44) assisting the return of the driving rod (38); the bicycle body is provided with a hollow shaft body (43), the driving rod (38) penetrates through the hollow shaft body (43), the elastic component (44) is sleeved on the rod body of the driving rod (38) and located in the hollow shaft body (43), the driving rod (38) is sleeved with a check ring, one end of the elastic component (44) acts on the check ring, and the other end of the elastic component acts on the inner bottom of the hollow shaft body (43); the check ring comprises a C-shaped clamp (41) and a gasket (42), a ring of annular groove (40) formed by sinking is formed in the rod wall of the driving rod (38), multiple salient points are arranged on the inner wall surface of the C-shaped clamp (41), the salient points can be clamped into the annular groove (40), and the gasket (42) is pressed by an elastic component (44) to be in butt joint with the bottom surface of the C-shaped clamp (41); a rubber shaft sleeve (45) is sleeved on the rod body close to the bottom end of the driving rod (38), and the rubber shaft sleeve (45) is in interference fit with the bottom shaft hole of the hollow shaft body (43).

3. The exercise bicycle of claim 1, wherein the link assembly comprises a main rod (47), a front bending frame (46) and a rear bending frame (48), the front bending frame (46) comprises two first V-shaped bending plates which are symmetrically connected, the two ends of the two first V-shaped bending plates are symmetrically provided with an adjusting long hole respectively, the bottom end of the driving rod (38) is provided with a threaded section (39), the threaded section (39) is sleeved with a coupling shaft (492), the two ends of the coupling shaft (492) are movably arranged in the adjusting long holes respectively, and the coupling shaft (492) is rotationally displaced along the adjusting long hole in a limited manner based on the circumferential direction of the driving rod (38); the rear bending frame (48) comprises two symmetrical second V-shaped bending plates, the brake piece (49) is arranged between the two second V-shaped bending plates in the axial direction, the two second V-shaped bending plates are arranged on the radial opposite side walls of the two second V-shaped bending plates in a plurality of magnets (491), and the magnets (491) are closer to the flywheel relative to the brake piece (49).

4. Exercise bike according to claim 1, characterized in that the bracket body comprises an elbow (25) with a certain arc, a short tube (27) and a transversal axle tube (26) for hinging with a fixed seat (36); the bottom end of the bent pipe (25) is fixedly arranged on the transverse shaft pipe (26), and the top end of the bent pipe is provided with a supporting pipe (30) used for connecting the mounting plate component; the bottom of nozzle stub (27) is equipped with limiting plate (29), the length of limiting plate (29) is greater than the horizontal pipe diameter of nozzle stub (27), the both ends of limiting plate (29) are located the spacing inslot respectively, and the one end of nozzle stub (27) is fixed to be set up on horizontal central siphon (26).

5. An exercise bicycle according to claim 4, characterized in that the fixing seat (36) is a U-shaped seat, the closed end of the U-shaped seat is connected and fixed to the frame, and the two radially opposite circumferential arc-shaped wall surfaces of the free ends (37) respectively comprise a limiting area, and the limiting areas are the limiting grooves; the transverse axle tube (26) is hinged in the cavity of the U-shaped seat through a pin shaft.

6. An exercise bike according to claim 1, characterized in that the mounting plate assembly comprises a stationary plate (31) and a movable plate (32), the wall of the stationary plate (31) is welded to the support tube (30), the movable plate (32) is detachably connected to the stationary plate (31), the movable plate (32) is used for mounting the electronic watch (12), the movable plate (32) is adjustable up and down relative to the stationary plate (31), and the electronic watch (12) is adjustable left and right relative to the movable plate (32); the movable plate (32) can be opposite to the fixed plate (31), two ends of the fixed plate (31) are respectively provided with a longitudinal adjusting hole (311), the movable plate (32) is provided with a plurality of transverse adjusting holes (35), and the middle parts of the fixed plate (31) and the movable plate (32) are respectively provided with a wire passing hole (33).

7. Exercise bike according to claim 1, characterized in that the driving rod (13) comprises a rod body section and a pulling section, in which a resilient member (14) is arranged, which resilient member (14) is connected to the rod body section at one end and is hinged to the cam lock at the other end.

8. An exercise bicycle according to claim 7, characterized in that the cam locking mechanism (10) further comprises a pipe plug (15), the pipe plug (15) is fixedly connected to the bicycle body, the pipe plug (15) is provided with a moving channel for the driving rod (13) to pass through; two wall surfaces of the moving channel, which are opposite in radial direction, are provided with lock holes (23), a bolt is elastically arranged on a rod body of the driving rod (13), and the bolt is partially exposed out of the rod body and is in an arc-shaped surface; in the moving process of the driving rod (13), the lock tongue can be clamped into the lock hole (23).

9. The exercise bicycle according to claim 1, wherein the frame comprises a base formed by an L-shaped square pipe (2) and a bending pipe (5) arranged at the transverse end of the L-shaped square pipe (2), the rotating shaft assembly comprises a rear rotating shaft group (6) arranged on the bending pipe (5) at the transverse end of the L-shaped square pipe (2) and a front rotating shaft group (55), and two ends of the swinging shaft cylinder (7) are movably connected to the front rotating shaft group (55) and the rear rotating shaft group (6) respectively; the swing shaft cylinder (7) comprises a front shaft cylinder and a rear shaft cylinder, the front shaft cylinder and the rear shaft cylinder are positioned on the same axis, the front shaft cylinder is arranged at the front part of the vehicle body, and the rear shaft cylinder is arranged at the tail part of the vehicle body; the front shaft barrel is connected with the front rotating shaft (55) group, the rear shaft barrel is connected with the rear rotating shaft group (6), the front rotating shaft (55) group and the rear rotating shaft group (6) are identical in structure, the rear rotating shaft group (6) comprises a shaft barrel, a bearing (57) arranged in the shaft barrel, and a rotating shaft (55) arranged on an inner ring of the bearing (57); one end of the rotating shaft (55) extends to the inner part of the rear end of the swing shaft barrel (7), a rotating disc (56) is fixedly connected to the inner part of the end, the end part of the rotating shaft (55) is butted with the rotating disc (56), and the rotating shaft (55) in the front rotating shaft (55) is connected with the front end of the swing shaft barrel (7).

10. An exercise bike according to claim 9, characterized in that one side of the fixed plate (52) is fixedly arranged on the longitudinal wall of the L-shaped square tube (2) by welding, one side of the swing plate (53) is fixedly arranged on the body by welding and can swing along with the swinging of the body, the front axle tube is located at the middle position between the swing plate (53) and the fixed plate (52), and the swing plate (53) and the fixed plate (52) are respectively opposite in radial direction; two elastic components (44) are respectively arranged at the upper end and the lower end of the fixed plate (52), two gaskets (42) are arranged at the positions of the swinging plate (53) corresponding to the elastic components (44), and when the swinging plate (53) swings left and right along with the vehicle body, the upper gasket (42) and the lower gasket (42) are switched back and forth to be extruded or separated from the upper elastic component (44) and the lower elastic component (44).

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