CN216805709U - Chain plate driven walking vehicle - Google Patents

Abstract

A chain plate driven walking vehicle is characterized in that a front chain wheel shaft (6) and a rear chain wheel shaft (7) are respectively installed at the front end and the rear end of a vehicle body (1), an annular chain (17) is installed on the upper side and the lower side of the vehicle body (1), and strip-shaped parts (18) parallel to rolling bodies (19) are uniformly fixed on the outer wall of the annular chain (17); the vehicle body (1) is obliquely arranged with high front and low back, and the strip-shaped pieces (18) on the upper side of the vehicle body (1) are arranged on the surface of a slope; the annular chains (17) with flap accessories are parallel to each other, and wide hard strip-shaped pieces (18) are densely distributed on the upper surfaces of the annular chains in parallel; the included angle between the top surface of the vehicle body (1), namely the slope surface of the strip-shaped piece (18), and the bottom surfaces of the front wheel (3) and the rear wheel is 5-15 degrees, so that the loose inclined surface of the strip-shaped piece (18) is obtained; the span flexible forced transmission can keep the speed ratio unchanged under the condition that the expansion force is not large, the bearing part is small in stress, two ends of the strip-shaped part (18) are synchronous in the movement process, the vehicle body is driven to walk in a chain active and auxiliary walking passive mode, the walking body-building and the rapid commuting are both considered, the device is organically combined with a walking tool, and the device is particularly suitable for people sitting for a long time.

Description

Chain plate driven walking vehicle

Technical Field

The utility model relates to a self-help walking scooter structure improvement technology, in particular to a chain plate driven walking vehicle.

Background

In the prior art, the energy forms used by various modern ground vehicles are diversified, and from the earliest charcoal to the present, the utilization of oil, gas, electricity, manpower (riding and treading) as main bodies, solar energy, wind power and the like are concerned, but the oil, the gas and the electricity are still the main energy sources of the current ground vehicles. The consumption of the energy-saving environment-friendly energy-saving energy. In addition to traditional bicycles, new types of vehicles that travel by themselves continue to emerge, such as scooters, scooter, and the like.

The bicycle is powered by pedaling of a person alternately by two legs in sitting posture, so that the person can move forward. The bicycle for riding instead of walk is usually in a front-rear single-wheel mode on the same vertical surface, so that people need to have a certain speed when riding and hold at any time to control balance, and therefore the bicycle is used as a riding instead of being ridden by people due to nature and needs short-term adaptive training in advance. Although, the bicycle is convenient to use, and is accepted in a wide area, in addition, novel portable vehicle products are even equipped with battery energy sources, including balance cars and intelligent walking vehicles. However, these products are not suitable for the elderly and infirm.

One type of improved technology attempts to drive with a user's foot, for example, chinese patent application 02125488.5 discloses an ergonomic treadmill, which is an improved product developed based on existing bicycles (or tricycles) and treadmills (indoor exercise treadmill). The power driving mechanism of bicycle (or tricycle) is removed, and is substituted by pedal device on the running machine, and the belt on the pedal can be used for driving wheel on the rear roller of pedal, and the driving wheel is directly meshed with driven gear obtained by changing rear axle flywheel of bicycle (or the rear roller can be directly used for driving two rear wheels of three-wheel walking vehicle). The belt structure of the treadmill is horizontally arranged, and the operation of the belt structure is driven by external power. When the walking vehicle is modified, the driving and the walking maintaining can not be realized by simply replacing or increasing or decreasing the auxiliary mechanism.

Chinese patent application 200520007974.9 discloses a folding walker, belonging to the technical field of land-free vehicles. The technical scheme is as follows: the walking vehicle can be realized only by modifying the conveyor belt of the treadmill, namely the walking device, additionally arranging a pair of rear wheels and transmission gears and connecting front wheel components, such as a front wheel, a front fork, a handle, a brake and the like. The friction roller (6), a group of middle rollers (7) fixed on the frame (9) are externally tensioned to friction mount the transmission belt (8), the user is tried to be supported by the upper and middle rollers (7) of the frame (9), and meanwhile, the feet of the user step on the transmission belt (8). The flat belt transmission is not suitable for being used as a running machine, although the flat belt transmission also belongs to span flexibility, the designed speed ratio of the flat belt transmission cannot work normally, the flat belt transmission is usually correct transmission and does not slip or stall, the pushing force is usually increased between two roller cylinders, the flat belt is tensioned, the load of a supporting part is greatly increased, the service life of the flat belt transmission is shortened, the flexibility of the running of a vehicle body is inevitably seriously damaged, and the deviation phenomenon of the flat belt in running is common and needs to be corrected at any time, so that the flat belt transmission is very troublesome.

In the experimental verification process, the improved technologies cannot realize the normal use function, and the reasons include that: firstly, a pedal belt or a transmission belt is not provided with a reasonable human body load supporting structure, so that the driving friction is too large, and the vehicle body cannot move; secondly, the structure of a belt or a transmission belt of the pedal is horizontally arranged, so that the driving wheel on the rear roller of the pedal cannot be driven by walking.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a chain plate driven walking vehicle, which drives a chain plate crawler belt driving vehicle wheel to drive a vehicle body to walk through a running direction switching mechanism, and is light and practical in operation and control.

The aim of the utility model is achieved by the following technical measures: a link-driven walker comprising: the chain wheel mechanism comprises a vehicle body, a front wheel, a front chain wheel shaft, a rear chain wheel shaft, a front chain wheel, a rear wheel, an annular chain, a strip-shaped piece and a rolling body; the front end and the rear end of the vehicle body are respectively provided with a front chain wheel shaft and a rear chain wheel shaft, two identical front chain wheels are symmetrically arranged on the inner sides of the two end parts of the front chain wheel shaft through rolling bearings, two rear chain wheels are also symmetrically arranged on the inner sides of the two end parts of the rear chain wheel shaft, a first gear is coaxially arranged in the middle or the outer end of the rear chain wheel shaft, a second gear is coaxially arranged on a corresponding driving output shaft through a one-way coupler, and the first gear and the second gear are kept meshed; a group of rolling bodies parallel to the front chain wheel shaft and the rear chain wheel shaft are uniformly arranged and installed along the inner side of the upper part of the vehicle body; the inner wall of the annular chain is provided with tooth holes matched with the outer edge teeth of the front chain wheel and the rear chain wheel, the inner sides of the front section and the rear section of the annular chain are respectively wrapped and meshed on the front chain wheel and the rear chain wheel, strip-shaped parts are uniformly fixed on the periphery of the annular chain turnover plate accessory, and the lower surfaces of the strip-shaped parts are tightly attached to the rolling bodies; the front part of the vehicle body is high, the back part is low, and the strip-shaped pieces on the upper side of the vehicle body are arranged on the surface of a slope; the included angle between the top surface of the vehicle body, namely the slope surface of the strip-shaped piece and the bottom surfaces of the front wheels and the rear wheels or the ground surface is 5-15 degrees.

Particularly, in the running direction switching mechanism, a first gear is coaxially arranged at the middle part or the outer end of the rear chain wheel shaft, a second gear is correspondingly coaxially arranged on the driving output shaft through a one-way coupler, and the first gear and the second gear are kept meshed.

In particular, a front frame is bridged at two sides of the front end of the vehicle body, and a front wheel is hinged and installed at the lower side of the front end of the front frame.

Particularly, the number of the front wheels 3 and the rear wheels is configured in four ways, namely, a front-rear structure, a rear-front structure, a rear-rear structure and a front-rear structure; wherein only one rear wheel serves as a driving wheel in driving connection with the first gear, the second gear and the drive output shaft.

Particularly, a long groove member is longitudinally arranged on the vehicle body, a long pin is transversely arranged on the long groove member, and a rolling body is sleeved on the long pin; the rolling body is a rolling bearing, a rolling shaft or an engineering plastic ring.

In particular, the one-way clutch and the first and second gears are mounted on the inside or outside of the vehicle body.

The utility model has the advantages and effects that: the walking vehicle can drive the road and can vertically relax the limbs, walking fitness and rapid commuting are both considered, walking exercise and a tool for riding instead of walking are organically combined together, and the walking vehicle is particularly suitable for sedentary people and beneficial to healthy life. The energy-saving and environment-friendly multifunctional chair is energy-saving and convenient to use, and can be used for building the body when people go on and off duty or go out for a short distance away from home. The multifunctional bicycle is rich in interestingness, easy to learn and meet, simple and practical to operate, safe to drive and capable of relieving the contradiction that people want to exercise without time.

Drawings

Fig. 1 is a schematic front view of an embodiment 1 of the present invention.

Fig. 2 is a schematic top view of a gear pair in embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of a gear pair placed outside a vehicle body in embodiment 1 of the present invention.

Fig. 4 is a schematic view of the front end a-a sprocket shaft assembly structure in embodiment 1 of the present invention.

Fig. 5 is a schematic view of the rear-end C-C rear-end sprocket shaft assembly structure in embodiment 1 of the present invention.

Fig. 6 is a schematic view of the assembly structure of two rear wheel axles B-B in embodiment 1 of the present invention.

Fig. 7 is a schematic view of an assembly structure of the front vertical rod and the sliding sleeve mounted thereon according to embodiment 2 of the present invention.

Fig. 8 is a schematic view of a folding structure of the front vertical rod in embodiment 2 of the present invention.

Fig. 9 is an assembly structure diagram of the front frame with two front wheels according to embodiment 3 of the present invention.

The reference numerals include:

the bicycle comprises a bicycle body 1, a front frame 2, a front wheel 3, a handlebar 4, a brake lever 5, a front chain wheel shaft 6, a rear chain wheel shaft 7, a screw 8, a front chain wheel 9, a rear chain wheel 10, a first gear 11, a second gear 12, a one-way coupler 13, a drive output shaft 14, a right rear wheel 15, a left rear wheel 16, an annular chain 17, a strip 18, a rolling body 19, an elongated slot 20, a long column pin 21, a front upright rod 22, a sliding sleeve 23, a hinge pin 2301, a wheel axle connecting rod 24, a suspension pin 25, a wheel axle steering rod 26, a steering drive rod 27 and a transverse connecting rod 28.

Detailed Description

The principle of the utility model lies in that researches find that a front chain wheel 9, a rear chain wheel 10, an annular chain 17 and a strip member 18 form a vertical surface chain transmission system, and a strip member 18 loose inclined surface is obtained on the basis; the vertical surface chain transmission belongs to a span flexible forced transmission mode, can still keep the speed ratio unchanged under the condition of small tension, for example, a bearing and other supporting pieces have small stress and flexible operation, can ensure that two ends of a strip-shaped piece 18 move synchronously, and is an important basic condition for realizing the patent application; the easy flexibility of the running of the articulated inclined plane of the body 1 also benefits from the mutual coupling and cooperation of the rigid strip 18 and the effective rolling support of the rolling bodies 19 arranged in a rational manner thereunder under synchronous chain drive conditions.

In the present invention, strolling means walking freely and leisurely. Based on the walking experience of the vehicle body and the requirements of leisure, fitness and transportation of wide crowds including children and old people capable of completing basic walking physical energy, the potential energy of the carrying load is reasonably utilized under the assistance of the walking slope, the design of the starting slope angle a of static friction is overcome to be not less than 5 degrees but not more than 15 degrees, the vehicle is used in the walking posture, the walking and feet moving can be kept to be labor-saving, the walking is smooth and stable, and the walking is safe and elegant.

In the utility model, the object mass is m, the gravity acceleration g, the slope angle is a, the received friction force is F, the slope supporting force is N, the component force F along the slope direction is used for carrying out stress analysis on the slope, and the direction parallel to the slope is mgsin (a) -F; for the direction perpendicular to the slope, N mgcos (a). When the gradient increases, a increases and mgsin (a) ═ F also increases, but the component force along the slope at the beginning is smaller than the maximum static friction force F_maxSo still remains stationary. But as a continues to increase so that the downward component of gravity along the incline exceeds the maximum static friction force f_maxAt this time, the object cannot be continuously held on the inclined surface, and thereafter, uniform acceleration movement is started downward along the inclined surface. Therefore, the condition required for the object to slide down is mgsin (a)>f_maxI.e. a>arcsin[f_max/(mg). It was found that the DIS system was used for experimental analysis of the friction-relative sliding speed relationship. Namely: f ═ P × sina (1- μ);

wherein: f- -the tension occurring in the chain (i.e., the torque acting on the sprocket);

p- - -mass (weight) of the person;

a is the included angle between the combined surface of the strip-shaped part 18 on which a person stands and the horizontal plane;

μ — coefficient of friction of rolling elements;

in the foregoing, the included angle a is also an included angle between the top surface of the vehicle body 1 and the bottom surface or ground surface of the front wheel 3 and the rear wheel, or simply referred to as the slope of the vehicle body 1, and theoretically, the included angle a is large and seems to be favorable for increasing the driving torque, but when the included angle is large to a certain value, a person stands on the vehicle and feels uncomfortable, and the person stands unstably, and the sole of the person slips and is difficult to control. a is not preferably larger than 15 ° or smaller than 5 °, and is preferably set to 7 to 8 °. The reason is that when a person walks, the person lifts the legs forwards in a striding way, the distance between the feet and the ground is about 6-8 centimeters generally, the step distance is about 50-65 centimeters, the height is related, the feet touch the ground timely, and the geometric relationship among the numerical values is just close to the inclination angle of the required function. The mu friction coefficient is generally in the range of 0.002 to 0.01 for a single rolling element (e.g., rolling bearing), but in the case of comprehensive combined use, the actual value is larger due to the factors such as the deviation of the assembly position and the damping of the supporting rolling element.

In the utility model, the number of the front wheels 3 and the rear wheels is configured in a mode of realizing a structure comprising a front-rear structure, a rear-rear structure, a front-rear structure and a front-rear structure. In any form, the rear wheel single driving structure is generally adopted and is simple and convenient.

The user can get a walking movement experience which is much faster than the user who directly walks on the ground in a usual simple walking mode without any training in advance. The walking action of the person is also a work action, but the walking action is much easier and more labor-saving when the person walks on the vehicle body, the person can be taken to safely and stably move forward at the walking speed which is more than three times, the walking experience in clouds is obtained, the walking action is rich in strong interest, and the walking action is convenient and easy to learn and easy to meet by combining with the reliable assistance of the steering brake mechanism as long as the action can be self-managed and can be simply walked, so that the walking action is simple in operation, practical and safe.

The utility model provides novel sports equipment and a land vehicle, which are more humanized in design and have double effects of novel walking tools and body-building equipment. The walking aid is more suitable for the walking habit of people, has good stability and is suitable for being widely used by a plurality of enthusiasts. The scooter can be further developed and improved for the old, and a rehabilitation vehicle, a portable motor vehicle and the like which can save energy consumption.

The utility model is further illustrated by the following examples in conjunction with the drawings.

Example 1: a chain plate driven walking vehicle is shown in figures 1, 2, 3, 4, 5 and 6, and the number of a front wheel 3 and a rear wheel is configured in a front-rear structure, namely the rear wheels are a right rear wheel 15 and a left rear wheel 16. The method comprises the following steps: the device comprises a vehicle body 1, a front frame 2, a front wheel 3, a front chain wheel shaft 6, a rear chain wheel shaft 7, a front chain wheel 9, a rear chain wheel 10, a first gear 11, a second gear 12, a one-way coupler 13, a driving output shaft 14, a rear wheel, an annular chain 17, a strip 18 and a rolling body 19; a front frame 2 is arranged on the front side of the vehicle body 1, front wheels 3 are arranged on the lower side of the front frame 2, and rear wheels are arranged on the lower side of the rear side of the vehicle body 1 through a driving output shaft 14; the front end and the rear end of the vehicle body 1 are respectively provided with a front chain wheel shaft 6 and a rear chain wheel shaft 7, the inner sides of the two end parts of the front chain wheel shaft 6 are symmetrically provided with two same front chain wheels 9 through rolling bearings, similarly, the inner sides of the two end parts of the rear chain wheel shaft 7 are also symmetrically provided with two rear chain wheels 10, the middle part or the outer end of the rear chain wheel shaft 7 is coaxially provided with a first gear 11, correspondingly, a driving output shaft 14 is coaxially provided with a second gear 12 through a one-way coupler 13, and the first gear 11 and the second gear 12 are kept meshed; a group of rolling bodies 19 parallel to the front chain wheel shaft 6 and the rear chain wheel shaft 7 are uniformly arranged and installed along the inner side of the upper part of the vehicle body 1, tooth holes matched with teeth on the outer edges of the front chain wheel 9 and the rear chain wheel 10 are formed in the inner wall of the annular chain 17, the inner sides of the front section and the rear section of the annular chain 17 are respectively wrapped and meshed on the front chain wheel 9 and the rear chain wheel 10, a strip-shaped part (18) is uniformly fixed on a turnover plate accessory at the periphery of the annular chain 17, and the lower surface of the strip-shaped part 18 is tightly attached to the rolling bodies 19; the vehicle body 1 is obliquely arranged with a high front and a low back, and the strip-shaped pieces (18) at the upper side of the vehicle body 1 are arranged on a slope surface; the included angle between the top surface of the vehicle body 1, namely the slope surface of the strip-shaped piece 18, and the bottom surface of the front wheel 3 and the rear wheel or the ground surface is 5-15 degrees. The top surface and the ramp surface may be considered to be parallel in general, but non-parallel is also possible.

In the foregoing, the front frame 2 is bridged across two sides of the front end of the vehicle body 1, the front wheel 3 is mounted and supported on the lower side of the front end of the front frame 2, the front wheel 3 is connected with the top end of the front upright rod 22 upwards, the handle 4 is mounted on the handle 4, the brake lever 5 is connected to the front wheel 3, and the brake circuit is embedded in the cavity of the front upright rod 22.

In the above, the front frame 2 has a triangular cross section, and the front end of the front frame 2 is vertically fixed with a pipe sleeve which is sleeved on the lower section of the front vertical rod 22.

In the above, the parameters of the front chain wheel 9 and the rear chain wheel 10 are consistent, or the front chain wheel and the rear chain wheel can be designed into two pairs of chain wheels with different diameters.

In the foregoing, automobile body 1 includes two fixed rectangular frills of symmetry installation of left and right two sides, forms the step at top and bottom inboard respectively, through many gusset or connecting rod welded fastening who rolls over the limit between two rectangular frills, the front end of the rectangular frills of left and right two sides is symmetrical to be opened there is waist type shaft hole, and preceding sprocket shaft 6 is put flatly and is installed wherein, and preceding sprocket shaft 6 can remove in the long waist hole of automobile body 1 front end, and 8 tops are tight through two side screws, adjust the power that rises of two groups of chains 17.

In the above description, the gear pair may be mounted on the inside or outside of the vehicle body 1, near the right rear wheel 15, i.e., the drive wheel side. The front wheel has compact and beautiful structure, relatively small front and rear wheel tracks and flexible operation and steering, and has the defect that the head of the bicycle is slightly floated if a person stands too far behind; the rear part of the whole vehicle is relatively wider, but the structure of the vehicle body is slightly more complex. The gear pair may be designed into inner engaged structure and features that the power output shaft center and the rear chain wheel shaft center may be superposed.

In the above description, the vehicle body 1 is provided with the long groove member 20 in the longitudinal direction, the long pin 21 is provided on the long groove member 20 in the lateral direction, and the rolling elements 19 are fitted on the long pin 21.

In the foregoing, the front vertical rod 22 is connected with a telescopic lifting adjusting structure.

In the foregoing, the rolling elements 19 are closely and densely distributed below the hard strip-shaped elements 18 arranged in the chain entering the upper straight-line section, so that all the strip-shaped elements 18 entering the upper straight-line section are supported by one to two rows of rolling elements 19 at any time, and the rolling elements 19 can be directly rolling bearings or engineering plastic ferrules with small friction coefficients.

In the above, the front and rear chain wheels 9 and 10, i.e. the front and rear chain wheels, are hung with the same number of links of the endless chains 17 with flap attachments, and are parallel to each other, and the wide hard bars 18 are densely distributed on the upper surfaces of the chain wheels, so that the left and right chain transmission operations are synchronous.

In the foregoing, the edges at two sides of the top of the vehicle body 1 are turned over and heightened, and are slightly higher than the surface of the hard strip-shaped piece 18 by 1-2 mm. When the people up stand, step on strip-shaped member 18 at the foot simultaneously, take slightly to step on and touch outstanding automobile body 1 border obtains similar damping brake effect, and the car just can not remove at this moment, and is laborsaving practical, is convenient for control the automobile body, can reduce the cost of manufacture again, switches automobile body 1 state of marcing freely.

In the embodiment of the utility model, the vehicle body 1 is a human body bearing mechanism and is also an installation and support structure of a chain plate transmission mechanism. When an included angle a between the vehicle body 1 and the horizontal plane is more than 5 degrees, a person stands to any part of the hard strip-shaped part 18 with the upper part in an inclined state, the annular chain 17 can be started to work, and the right rear wheel 15 is stressed to drive the vehicle body to move. The inclined plane of the vehicle body 1 can adopt fixed angles (including a small number of different fixed angles), so that the whole vehicle structure is more compact, portable and practical;

in the embodiment of the utility model, the gear pair is arranged, so that the coordinated running direction can be converted; and also one of the factors for establishing the running parameters of the whole vehicle, the gear ratio of the first gear 11 and the second gear 12 can be designed to be 1:1 or other values.

In the embodiment of the utility model, the gear side effect formed by the first gear 11 and the second gear 12 is to convert the striding direction of people, the backward movement of the upper section of the annular chain 17 and the forward rolling direction of wheels, and based on that most people use right feet as common use, the right rear wheel 15 is arranged as a driving wheel to shorten the transmission distance. A one-way coupler 13 is embedded in a central hole of the gear 12, the one-way coupler 13 drives a driving output shaft 14 to rotate in the forward direction, and the one-way coupler 13 drives a rear wheel 15 at one side to serve as a driving source for forward movement of the whole vehicle; the left rear wheel 16 is just sleeved on a bearing to perform passive running like the front wheel 3.

In the embodiment of the utility model, the walking power of the vehicle comes from the gravitational potential energy of the mass of the human body to play a role on the loose inclined plane, so as to promote the chain to move, enable the chain wheel to run and provide driving force for the rear wheel at one side: when feet of a strip-shaped piece 18 treaded at the high position of the front end of the upper layer annular chain 17 share the dead weight, the gliding kinetic energy is generated by potential energy, usually the other foot is at the low position of the rear end of the upper layer annular chain 17, further, when the low position foot is lifted and moves forwards, the descending high position foot can rapidly bear the whole dead weight of the human body, and the annular chain 17 has a rotation acceleration process under the condition that a transmission system is not provided with a damping mechanism or a speed reducing mechanism; in fact, in the process, the human body continuously lifts the back foot to move forward on an uphill slope, such as walking along a gentle slope, and the vehicle carries the person to move forward; the annular chain 17 which obtains the kinetic energy transferred by the two human body casters by treading drives the front chain wheel 9 and the rear chain wheel 10 to rotate, and further drives the right rear wheel 15 and the left rear wheel 16 and the rear wheel group to rotate and walk through the transmission of the first gear 11 and the second gear 12.

In the utility model, the annular chains 17 with the flap accessories are mutually in a parallel state, and wide hard strip-shaped pieces 18 are densely distributed on the upper surfaces of the annular chains in parallel, namely the strip-shaped pieces 18 are fixed on the flap accessories of the annular chains 17.

In the embodiment of the utility model, the human body walks on the ground at the same pace and the same distance, and the number of steps needed to be strided is more than three times that of steps needed to be walked on the vehicle body; that is, the walking vehicle can travel the whole journey only by walking less than one third of the ground route on the vehicle body, and obviously, the walking vehicle has much higher traveling speed. Meanwhile, the vehicle body is supported by three wheels, so that the stability and the walking flexibility are better.

In the embodiment of the utility model, the vehicle body 1 and the endless chain 17 are in an inclined state to determine the driving force, the traveling speed and the operation and use experience, and the larger the inclined angle is, the faster the walking speed of the human body is, that is, the faster the speed of the walking vehicle is.

Example 2: as shown in fig. 7 and 8, a two-segment hinge structure is provided on the lower segment of the front vertical rod 22 through a hinge pin 2301, and a sliding sleeve 23 is sleeved outside the hinge segment. The handle structure is installed in combination with the outside of the vehicle body 1, after the sliding sleeve 23 is pulled open along the front upright rod 22, the front upright rod 22 is hinged, and the auxiliary function of folding, portable use is further realized.

In the embodiment of the utility model, when the vehicle body is idle and needs to be stacked for storage or needs to be shipped, the sliding sleeve 23 can be pulled upwards, the hinge pin 2301 is taken as a hinge point, and the front upright rod 22 is folded. The folded upper front upright rod 22 is attached to the upper side of the strip-shaped member 18 and fixed; when the front upright stanchion 22 needs to be opened, the front upright stanchion 22 is rotated to be erected, and then the sliding sleeve 23 is moved downwards to clamp two adjacent sections of the front upright stanchions 22 at the position of the fixed hinge pin 2301, so that the front upright stanchions 22 can restore the normal use function.

Example 3: the front assembly structure when two front wheels 3 are mounted on the front frame 2 is shown as the attached figure 9: the front frame 2 is in a long plate shape and is horizontally and fixedly arranged at the front end of the vehicle body 1, a pipe sleeve is vertically and fixedly arranged at the middle part of the front frame 2, the lower part of the front vertical rod 22 passes through the pipe sleeve to be hinged, the lower end of the front vertical rod 22 is vertically and fixedly connected with the inner end of a steering driving deflector rod 27, the lower sides of the two ends of the front frame 2 are respectively provided with a front wheel 3 through a suspension pin 25, the lower section of the suspension pin 25 is in sliding sleeve connection with the inner end of a wheel axle connecting rod 24 and the inner end of a wheel axle steering deflector rod 26 which are in orthogonal three-dimensional right angle relation, the central axis of the suspension pin 25 is simultaneously vertical to the central axes of the wheel axle connecting rod 24 and the wheel axle steering deflector rod 26, the wheel axle connecting rod 24 and the wheel axle steering shift lever 26 are fixed with each other, the wheel axle connecting rod 24 and the wheel axle steering shift lever 26 can rotate around the central axis of the suspension pin 25, the outer end of the wheel axle connecting rod 24 is coaxially arranged at the inner side of the front wheel 3 through a bearing, and the outer ends of the two wheel axle steering shift levers 26 at the two sides and the outer end of the driving shift lever 27 are correspondingly hinged at the two ends and the middle part of the transverse connecting rod 28.

In the embodiment of the utility model, when the front vertical rod 22 rotates, the driving shift lever 27 rotates to drive the transverse connecting rod 28 to horizontally swing left and right, and further synchronously rotate around the two suspension pins 25 on the two sides respectively through the wheel axle steering shift levers 26 on the two sides, so that the two wheel axle connecting rods 24 on the two sides rotate in the same direction.

Claims (6)

1. A chain plate driven walking vehicle comprises a vehicle body (1), a front wheel (3), a front chain wheel shaft (6), a rear chain wheel shaft (7), a front chain wheel (9), a rear chain wheel (10), a rear wheel, an annular chain (17), a strip-shaped part (18) and a rolling body (19); the front and rear chain wheels are respectively arranged at the front end and the rear end of the vehicle body (1), two identical front chain wheels (9) are symmetrically arranged on the inner sides of the two ends of the front chain wheel (6) through rolling bearings, two rear chain wheels (10) are also symmetrically arranged on the inner sides of the two ends of the rear chain wheel (7), and the middle part or the outer end of the rear chain wheel (7) is coaxially provided with an operation direction switching mechanism; a group of rolling bodies (19) which are parallel to the front chain wheel shaft (6) and the rear chain wheel shaft (7) are uniformly arranged and installed along the inner side of the upper part of the vehicle body (1); the inner wall of the annular chain (17) is provided with tooth holes matched with teeth on the outer edges of the front chain wheel (9) and the rear chain wheel (10), the inner sides of the front section and the rear section of the annular chain (17) are respectively wrapped and meshed on the front chain wheel (9) and the rear chain wheel (10), strip-shaped parts (18) are uniformly fixed on the turnover plate accessories on the periphery of the annular chain (17), and the lower surfaces of the strip-shaped parts (18) are tightly attached to the rolling bodies (19); the car body (1) is obliquely arranged with a high front and a low back, and the strip-shaped pieces (18) on the upper side of the car body (1) are arranged on the surface of a slope; the included angle between the slope surface of the strip-shaped piece (18) and the bottom surfaces of the front wheel (3) and the rear wheel is 5-15 degrees.

2. The chain plate driven walker as claimed in claim 1, wherein in the direction of travel switching mechanism, a first gear (11) is coaxially mounted at the middle or outer end of the rear sprocket shaft (7), and correspondingly, a second gear (12) is coaxially mounted on the driving output shaft (14) through a one-way coupler (13), and the first gear (11) and the second gear (12) are kept meshed.

3. The chain plate driven walker as claimed in claim 1, wherein the front frame (2) is bridged on both sides of the front end of the walker body (1), and the front wheel (3) is hinged to the lower side of the front end of the front frame (2).

4. The link driven walker according to claim 1, wherein the number of the front wheels (3) and the number of the rear wheels are arranged in four configurations, i.e., a front-rear one, a front-two-rear two, a front-two-rear one, and a front-two-rear one; wherein only one rear wheel is used as a driving wheel which is in transmission connection with the first gear (11), the second gear (12) and the driving output shaft (14).

5. The chain plate driven walker as claimed in claim 1, wherein the body (1) is provided with an elongated channel member (20) longitudinally, the elongated channel member (20) is provided with an elongated pin (21) transversely, and the elongated pin (21) is sleeved with the rolling body (19); the rolling body (19) is a rolling bearing, a rolling shaft or an engineering plastic ring.

6. The chain mat driven walker as claimed in claim 2, wherein the one-way clutch (13) and the transmission mechanisms of the first gear (11) and the second gear (12) are mounted on the inside or outside of the body (1).

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