CN209776666U - Baby carriage and tricycle body thereof - Google Patents

Abstract

The utility model discloses a baby carriage and a tricycle body thereof, comprising a frame, wherein the front end of the frame is symmetrically provided with front forks for mounting front wheels, the tail end of the frame is fixed with rear forks for mounting rear wheels, the frame comprises a cross frame at the front end, two ends of the cross frame are provided with mounting sleeves for rotatably connecting the front forks, one side of each mounting sleeve is provided with an extending part and is hinged on the cross frame, two limiting parts for limiting the horizontal movement of the cross frame are movably connected between the cross frames, the top of the front fork is provided with a handle, the handle is hinged with a handle, the handle is provided with a pull rope for pulling the limiting parts to move and switch to another state, one end of the pull rope is fixed with the handle, the other end of the pull rope is fixed with the limiting parts, the handle on the handle can be rotated around a hinge point by driving the handle on the handle, the pull rope can be pulled, during the period, the hands of people do not need to be separated from the handlebar, and the riding safety is better.

Description

Baby carriage and tricycle body thereof

Technical Field

The utility model relates to a perambulator field, more specifically say, it relates to a perambulator and tricycle automobile body thereof.

Background

the perambulator is the tool bogie that designs for baby's outdoor activities facilitates, along with scientific and technological's improvement and people's standard of living's improvement, people's amusement and leisure's quality requirement also improves, in order to satisfy user group's demand, there is the perambulator that the adult can ride on the current market, through placing the sleeping basket in the automobile body front portion, and this automobile body includes two front wheels and a rear wheel, realize stably riding, but because this automobile body is the tricycle structure, there is the potential safety hazard of turning on one's side easily when turning.

The baby carriage comprises a frame and front forks symmetrically arranged at the front end of the frame and used for mounting front wheels, wherein parallel crossbearers are arranged at the front end of the frame, mounting sleeves are arranged at two ends of the crossbearers, the front forks of the front wheels are rotationally connected on the mounting sleeves, and an extending part at one side of the mounting sleeves is hinged on the crossbearers by virtue of articulated shafts, so that the two front wheels can incline towards one side of a steering direction during turning, the turning stability is improved, the safety is higher, in order to improve the stability of a carriage body when the turning is not needed at ordinary times, a bolt which is used for connecting the two crossbearers and limiting the crossbearers to move horizontally is arranged between the two crossbearers, the crossbearers can not move horizontally through bolt insertion and limiting, the front wheels cannot topple left; however, when riding, the user needs to operate the bolt by hands, which is not only troublesome, but also easily causes safety problems when the user disengages from the handlebar to operate.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a tricycle automobile body has the advantage of conveniently operating locating part switching state when riding.

In order to achieve the above purpose, the utility model provides a following technical scheme:

The utility model provides a tricycle body, includes the frame, the frame front end symmetry is provided with the front fork that supplies the front wheel installation, the tail end of frame is fixed with the back fork that supplies the rear wheel installation, the frame includes the crossbearer of front end, the both ends of crossbearer are provided with the installation cover that supplies the front fork to rotate to be connected, installation cover one side is provided with on extension and the extension wear to be equipped with crossbearer articulated shaft, the both ends of crossbearer be with the cambered surface of installation cover butt, parallel arrangement is two about the crossbearer, swing joint has the locating part that is used for restricting both horizontal migration between the crossbearer, the top of front fork is provided with the handlebar, it has the handle to articulate on the handlebar, be provided with the stay cord that the pulling locating part switches to another kind of state on hand, stay cord one end is fixed with the handle.

The locating part has the joint and not the two kinds of states of joint, realize during the joint spacing to the front wheel is emptyd, make the front wheel can be stable be in vertical state, ensure that the automobile body stabilizes the straight line and ride, when the locating part is in the state of untiing, the front wheel can be towards turning to one side and topple over the turning to that realizes automobile body safety and stability, only need during the operation rotate around the pin joint through ordering about the handle on the handlebar, can come the pulling locating part with the help of the stay cord and make it switch to another state, whole operation process is simple and convenient, people's hand need not to break away from the handlebar during, the.

The utility model discloses further set up: the locating part comprises a bolt which is vertically and slidably connected to one of the cross frames, and the other cross frame is provided with a limiting hole for the bolt to be inserted.

In-process of riding on the straight line, peg graft at spacing hole with the help of the bolt and realize spacingly, the removal of relative horizontally can't take place for two crossbearers this moment, thereby make stable being in vertical state of front wheel, can be stable ride, come the pulling bolt to make it deviate from spacing hole and can remove spacingly during the turn with the help of the stay cord, accomplish the back of turning, when the wheel of automobile body keeps vertical state, loosen the handle, the bolt can move down at self gravity and insert spacing hole realization again and realize spacing to the crossbearer.

The utility model discloses further set up: the locating part includes the swing arm of vertical setting, middle part one side of swing arm is provided with and is used for the card to go into the fixture block between the crossbearer, the bottom of swing arm is articulated on the crossbearer of below and articulated department is provided with the second torsional spring, be provided with the guide on the crossbearer, the one end of stay cord is passed the guide and is fixed on the top of swing arm.

Because two crossbearers form the parallelogram structure with the installation cover, the distance that the front wheel emptys and can make between two crossbearers reduces when the automobile body turns to, block card through the swing arm is gone into and can realize equally between two crossbearers spacing to the crossbearers, make the front wheel topple over about unable, stability is improved, and come and rotate around the pin joint with the help of stay cord pulling swing arm through operating handle when meetting the turn, make the block card go into and can realize spacing between two crossbearers, and after loosening the handle, the swing arm can resume the normal position under the effect of second torsional spring, make the block deviate from between two crossbearers, the automobile body can be stable turn this moment.

The utility model discloses further set up: the cross frame of below sets up and is fixed with square pipe, leave the interval between the cross frame diapire of square pipe roof and top.

The limit of the inclination angle when the front wheel is turned can be played through the square tube, when the cross frame is pressed on the square tube, the front wheel cannot be further inclined, so that the situation that the front wheel is excessively inclined to cause falling down when the front wheel is turned is avoided, and the safety is better.

The utility model discloses further set up: the bolt is provided with a first elastic piece which drives the bolt to be inserted into the limiting hole.

The bolt can be better matched with the limiting hole to realize limiting under the condition of no external force by means of the arrangement of the first elastic piece, so that after the handle is loosened, the bolt can recover the limiting state of being connected with the limiting hole in an inserting mode at the restoring force of the first elastic piece, and the bolt is more convenient.

The utility model discloses further set up: the inside cavity that forms of hollowing out of handlebar, be provided with the convex part that is located the cavity on hand, handle has the movable post along its thickness direction sliding connection, the movable post is the echelonment and includes first cylinder and second cylinder, the diameter of first cylinder is greater than second cylinder diameter, the second cylinder is located the cavity, the handle is provided with the first torsional spring that is used for rotating the reduction with the articulated department of handlebar, the convex part butt is when first cylinder surface, stay cord pulling locating part removes, be provided with the second elastic component that orders about first cylinder and shift out the cavity on the handlebar.

Through the arrangement, after the limiting piece is driven to rotate to separate from the limiting state, the movable column can be pressed to enable the first column body to enter the cavity, the surface of the first column body is tightly propped by the convex part of the handle, so that the first column body can not be restored under the action of the second elastic piece, and the handle can not restore to the original position under the action of the first torsion spring, so that the limiting piece can be stably in a limiting state, and people do not need to press the handle all the time, the operation is more convenient and labor-saving, when the limit part needs to be recovered to be unlocked, the pressing handle rotates around the hinge point to enable the convex part to not abut against the first cylinder, the first cylinder restores the original position under the action of the second elastic piece, the first cylinder moves out of the cavity, the convex part of the handle is not blocked by the first cylinder and can be overturned to enter the cavity, the pull rope restores the original position and does not pull the limiting part, and the limiting part restores the original position to be in an unlocking state.

The utility model discloses further set up: and one side of the fixture block, which faces the cross frame, is provided with an inclined guide surface, and the guide surfaces are respectively positioned at the top and the bottom of one side of the fixture block.

With the help of the arrangement of the guide surface, the fixture block can play a role in guiding when moving into the space between the cross frames, so that the fixture block can more easily and smoothly enter into the space between the two cross frames to realize clamping.

The utility model discloses further set up: the outside of stay cord has cup jointed the sleeve pipe, sleeve pipe one end is fixed with the handlebar.

Through sheathed tube setting, can play the supporting role to the stay cord, and the stay cord can be twitched at the cover intraductal, need not to keep the stay cord to be in like this and still can well stimulate the locating part in the state of tightening.

Another object of the present invention is to provide a baby carriage, which has the advantage of conveniently operating the position-limiting member to switch the state during riding.

in order to achieve the above purpose, the utility model provides a following technical scheme:

a baby carriage comprises the three-wheel carriage body, wherein a mounting frame is arranged at the front end of the carriage body, and a sleeping basket is arranged on the mounting frame.

Through the setting of sleeping basket, people can place the baby in sleeping basket at the in-process of riding, and because sleeping basket is located automobile body the place ahead and is in adult's sight all the time, possesses better security.

To sum up, the utility model discloses following beneficial effect has:

The front wheel is limited in toppling by adopting two limiting parts, so that the bicycle body can keep good stability when the bicycle is ridden in a straight line, the limiting parts can be driven to switch states by virtue of the pull rope only by operating through a handle when the bicycle is ridden, the whole operation is more convenient, the operation can be completed without a hand leaving a handlebar during operation, and the safety is better; in addition, the travel limit of the front wheel inclination angle can be realized by means of the square tube, the situation that the front wheel excessively inclines during turning is avoided, and the safety is better in the turning process.

Drawings

FIG. 1 is an overall structural view of embodiment 1;

FIG. 2 is an enlarged view at B in FIG. 1;

FIG. 3 is a view showing the construction of the plug in the embodiment;

FIG. 4 is a structural view of a handlebar in embodiment 1;

FIG. 5 is an overall structural view of embodiment 2;

Fig. 6 is an enlarged view of a portion a in fig. 5.

Reference numerals: 1. a frame; 2. a front fork; 3. a front wheel; 4. installing a sleeve; 5. a handlebar; 6. an extension portion; 7. hinging a shaft; 8. a cambered surface; 9. a cross frame; 10. a seat; 11. a rear fork; 12. a rear wheel; 13. a mounting frame; 14. a sleeping basket; 15. a square tube; 16. a bolt; 17. a limiting hole; 18. mounting a plate; 19; a convex ring; 20. a first elastic member; 21. a handle; 22. pulling a rope; 23. a cavity; 24. a convex portion; 25. a movable post; 26. a first column; 27. a second cylinder; 28. a convex edge; 29. a second elastic member; 30. swinging arms; 31. a clamping block; 32. a conduit; 33. a second torsion spring; 34. a guide surface; 35. a guide groove; 36. a sleeve; 37. a frame body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

a baby carriage comprises a three-wheel carriage body as shown in figure 1, wherein the three-wheel carriage body comprises a carriage frame 1, a cross frame 9 is arranged at the front end of the carriage frame 1, front forks 2 are arranged at two ends of the cross frame 9, front wheels 3 are rotatably connected at the bottoms of the front forks 2, mounting sleeves 4 are arranged at two ends of the cross frame 9, the end parts of the front forks 2 penetrate through the mounting sleeves 4 to be rotatably connected with the front forks, handlebars 5 are fixedly arranged at the tops of the front forks 2, an extending part 6 extends from one side of the mounting sleeves 4 facing the cross frame 9, a hinge shaft 7 penetrates through the extending part 6 and is hinged on the cross frame 9 through the hinge shaft 7, and two ends of the cross frame 9 are cambered surfaces 8 abutted to the outer walls of the mounting; two transverse frames 9 are vertically arranged in parallel at intervals, the two transverse frames 9 and the mounting sleeves 4 on the two sides form a four-bar linkage structure, a seat 10 is arranged in the middle of the frame 1, a single rear fork 11 is arranged at the tail end of the frame 1, and a rear wheel 12 rotatably connected with the rear fork 11 is arranged on the rear fork 11; the front end of the cross frame 9 is provided with the mounting frame 13, the sleeping basket 14 for placing the baby is mounted on the mounting frame 13, when the baby sleeping basket is used, the baby is placed in the sleeping basket 14 by an adult to realize riding, and the sleeping basket 14 is positioned in front sight of the adult, so that the safety is better; and in the process that the automobile body turned, two front wheels 3 can suitably topple over towards the direction of turning for turn more stable safety is difficult for appearing the condition of turning on one's side.

As shown in fig. 1-3, a square tube 15 is fixed on the bottom wall of the middle part of the cross frame 9 at the lower part, a space is left between the top of the square tube 15 and the bottom wall of the cross frame 9 at the upper part, the space enables the front wheel 3 to be properly inclined when the vehicle body turns, when the top of the square tube 15 is abutted to the bottom wall of the cross frame 9 at the upper part, the front wheel 3 is inclined to the limit position and cannot be further inclined, so that the stroke limit of the inclination angle of the front wheel 3 is reached, the potential safety hazard caused by excessive inclination of the front wheel 3 is avoided, and the vehicle body has better safety when riding; the cross frame 9 is provided with a limiting part, the limiting part comprises a bolt 16 arranged on the upper cross frame 9, the bolt 16 is vertically connected to the cross frame 9 in a sliding manner, and a limiting hole 17 correspondingly matched with the square tube 15 is formed in the square tube 15, so that when the bicycle body does not need to turn and ride in a straight line, the bolt 16 can be inserted into the limiting hole 17 to limit, the two front wheels 3 can be stably in a vertical state, and the stability of the bicycle body during the straight line riding is improved; a U-shaped mounting plate 18 is disposed on the top of the upper cross frame 9, a protruding ring 19 is disposed on the outer wall of the plug 16, a first elastic member 20 for driving the plug 16 to move downwards and insert into the limiting hole 17 is disposed in the mounting plate 18, the first elastic member 20 is a spring, the spring is sleeved on the plug 16, one end of the spring abuts against the inner wall of the top of the mounting plate 18, and the other end of the spring abuts against the protruding ring 19.

As shown in fig. 1, 3 and 4, a handle 21 is disposed on one side of a handlebar 5, one end of the handle 21 is hinged to the handlebar 5, a pull rope 22 is disposed on the handle 21, one end of the pull rope 22 is fixed on the handle 21, the other end of the pull rope is fixed on the top of a bolt 16, a frame 37 is fixed outside a cross frame 9 corresponding to an installation plate 18, a sleeve 36 is sleeved outside the pull rope 22, one end of the sleeve 36 is fixed on the handlebar 5, the other end of the sleeve 36 is fixed on the top wall of the frame 37, and the end of the pull rope penetrates through the frame 37 and is fixed with the bolt 16 inside, so that when a vehicle body needs to turn, the handle 21 is only needed to be held by hand to pull the bolt 16 upwards by means of the pull rope 22, so that the bottom end of the bolt 16 is pulled out of a limit hole 17.

as shown in fig. 3, the interior of the handle 5 is hollowed to form a cavity 23, a protrusion 24 located in the cavity 23 is disposed on the handle 21, one end of the pull rope 22 is fixed on the protrusion 24, a movable column 25 penetrates through the handle 21 along the thickness direction thereof, the movable column 25 is slidably connected to the handle 21, the movable column 25 is a stepped pile and includes a first column 26 and a second column 27 fixed to each other, wherein the outer diameter of the first column 26 is larger than that of the second column 27, a first torsion spring (not shown in the figure) for driving the protrusion 24 to rotate into the cavity 23 and for rotational return is disposed at the hinge joint of the handle 21 and the handle 5, a second elastic member 29 for driving the first column 26 to move out of the cavity 23 is disposed on the handle 5, the second elastic member 29 is a spring, a convex edge 28 is disposed at the end of the first column 26, one end of the second elastic member 29 abuts against the convex edge 28, and the other end, therefore, when the handle 21 needs to be pressed to rotate and pull the bolt 16 to be disengaged from the clamping by virtue of the pull rope 22, the movable column 25 is pressed to enable the first column 26 to move into the cavity 23 by overcoming the elastic force of the second elastic piece 29, the convex part 24 on the handle 21 tightly pushes the first column 26 under the action of the first torsion spring so as not to be capable of moving outwards and resetting, and therefore when the handle is disengaged from the handle 21, the pull rope 22 can still be stably in the current state and the bolt 16 is in a spacing releasing state.

The implementation principle of the embodiment is as follows: the bolt 16 is inserted into the limiting hole 17 to realize limiting in an initial state, at the moment, the front wheel 3 of the bicycle body is stably in a vertical state, and the bicycle body can stably ride in a straight line; when a user needs to turn, the handle 21 is pulled inwards, the handle 21 rotates around the hinge point, the pull rope 22 pulls the bolt 16 to move upwards at the same time, the bottom end of the bolt 16 is separated from the limiting hole 17, the limiting state is released, the movable column 25 is pressed, the first column 26 is retracted into the cavity 23, the convex part 24 is tightly pressed on the first column 26 when the handle 21 is released, the first column 26 cannot rotate and is retracted into the cavity 23, and the movable column 25 can be stably in the current state; when accomplishing the straight line after turning and riding, further draw handle 21 in, convex part 24 no longer supports tight first cylinder 26, first cylinder 26 moves out cavity 23 under the resilience force effect of second elastic component 29, handle 21 rotates under the resilience force effect of first torsional spring, convex part 24 is totally taken in cavity 23, stay cord 22 no longer pulls bolt 16 this moment, bolt 16 moves down the tip under the effect of first elastic component 20 and blocks into spacing hole 17 again and realize spacingly, realization straight line that the automobile body can be stable this moment is ridden.

Example 2: a baby carriage, as shown in FIGS. 4 and 5, which is different from the structure of the limiting element of embodiment 1, the limiting element of this embodiment includes a vertically disposed swing arm 30, a fixture block 31 is disposed at the middle of the swing arm 30 for being clamped into the space between the upper cross frame 9 and the top wall of the square tube 15, wherein the bottom end of the swing arm 30 is hinged on the outer wall of the square tube 15, a conduit 32 is fixed on the top wall of the upper cross frame 9, one end of the conduit 32 is connected and fixed with a sleeve 36 and is disposed toward the front of the carriage body, one end of a pull rope 22 is fixed on the convex portion 24 of a handle 21, the other end passes through the conduit 32 and is fixed on the top of the swing arm 30, and a second torsion spring 33 is disposed at the hinged position at the bottom of the swing arm 30 for driving the fixture block 31 to release the clamping state, so that when the carriage body needs to, at this time, the clamping block 31 is separated from the space between the cross frame 9 and the square tube 15 to realize clamping release, the front wheel 3 can be inclined towards one side when the vehicle body turns, the safety is better, and the side turning is not easy to occur.

Be provided with inclined spigot surface 34 in fixture block 31 towards one side of crossbearer 9, spigot surface 34 is located the top and the bottom of fixture block 31 one side respectively, and seted up guide slot 35 on swing arm 30, the vertical sliding connection of fixture block 31 is in guide slot 35, make its can be more easily and smoothly block in the in-process spigot surface 34's that fixture block 31 blocked guide like this, when meetting that some deviations about fixture block 31 position exists, make fixture block 31 can realize the fine setting smoothly from top to bottom and block in guide of spigot surface 34.

The implementation principle of the embodiment is as follows: the swing arm 30 in the initial state enables the fixture block 31 to be in a non-clamping state under the action of the second torsion spring 33, at the moment, when the bicycle body turns, the front wheel 3 can topple towards one side of the turning direction to achieve safe and stable turning, when the bicycle body needs to stably and linearly ride, the handle 21 is pulled inwards, the handle 21 rotates around the hinge point, meanwhile, the pull rope 22 pulls the swing arm 30 to rotate around the hinge point, so that the fixture block 31 is clamped into the space between the cross frame 9 and the square pipe 15 to achieve clamping, the movable column 25 is pressed to enable the first column body 26 to retract into the cavity 23, at the moment, when the handle 21 is released, the convex part 24 abuts against the first column body 26 to be incapable of rotating to retract into the cavity 23, the movable column 25 can be stably in the current state, at the moment; when the vehicle needs to turn again, the handle 21 is further pulled inwards, the convex portion 24 does not abut against the convex portion 24 and abuts against the first cylinder 26, the first cylinder 26 moves out of the cavity 23 under the effect of resilience force of the second elastic piece 29, the handle 21 rotates under the effect of resilience force of the first torsion spring, the convex portion 24 is completely retracted into the cavity 23, the pull rope 22 does not pull the swing arm 30 any more, the swing arm 30 returns to the original position under the resilience force of the second torsion spring 33, the clamping block 31 is separated from the clamping state, and the vehicle body can safely and stably turn.

The embodiment of this specific implementation is the preferred embodiment of the present invention, not so limiting the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a tricycle automobile body, includes frame (1), frame (1) front end symmetry is provided with front fork (2) that supply front wheel (3) to install, the tail end of frame (1) is fixed with back vent (11) that supply rear wheel (12) to install, frame (1) includes crossbearer (9) of front end, the both ends of crossbearer (9) are provided with and supply front fork (2) to rotate installation cover (4) of being connected, installation cover (4) one side is provided with extension (6) and on extension (6) wear to be equipped with articulated shaft (7) with crossbearer (9), the both ends of crossbearer (9) are cambered surface (8) with installation cover (4) butt, crossbearer (9) parallel arrangement is two from top to bottom, swing joint has the locating part that is used for restricting both horizontal migration between crossbearer (9), characterized by: the top of front fork (2) is provided with handlebar (5), it has handle (21) to articulate on handlebar (5), be provided with stay cord (22) that the pulling locating part switches to another kind of state on handle (21), stay cord (22) one end is fixed with handle (21), and the other end is fixed with the locating part.

2. the three-wheeled vehicle body of claim 1, wherein: the limiting part comprises a bolt (16) which is vertically connected to one of the cross frames (9) in a sliding mode, and a limiting hole (17) for the bolt (16) to be inserted is formed in the other cross frame (9).

3. The three-wheeled vehicle body of claim 1, wherein: the locating part includes vertical swing arm (30) that sets up, middle part one side of swing arm (30) is provided with and is used for going into fixture block (31) between crossbearer (9), the bottom of swing arm (30) is articulated on below crossbearer (9) and articulated department is provided with the second torsional spring, be provided with the guide on crossbearer (9), the top at swing arm (30) is fixed to the guide is passed to the one end of stay cord (22).

4. The three-wheeled vehicle body of claim 1, wherein: the cross frame (9) of below is last to be set up and to be fixed with square pipe (15), leave the interval between the cross frame (9) diapire of square pipe (15) roof and top.

5. The three-wheeled vehicle body of claim 2, wherein: the bolt (16) is provided with a first elastic piece (20) which drives the bolt to be inserted into the limiting hole (17).

6. The three-wheeled vehicle body of claim 1, wherein: handlebar (5) are inside to be drawn in vain and form cavity (23), be provided with convex part (24) that are located cavity (23) on handle (21), handle (21) have movable post (25) along its thickness direction sliding connection, movable post (25) are the echelonment and include first cylinder (26) and second cylinder (27), the diameter of first cylinder (26) is greater than second cylinder (27) diameter, second cylinder (27) are located cavity (23), the articulated department of handle (21) and handlebar (5) is provided with the first torsional spring that is used for rotating the reduction, convex part (24) butt is when first cylinder (26) surface, stay cord (22) pulling locating part restriction removes, be provided with second elastic component (29) that order about first cylinder (26) to shift out cavity (23) on handlebar (5).

7. the three-wheeled vehicle body of claim 3, wherein: one side of the clamping block (31) facing the cross frame (9) is provided with an inclined guide surface (34), and the guide surfaces (34) are respectively positioned at the top and the bottom of one side of the clamping block (31).

8. the three-wheeled vehicle body of claim 1, wherein: the outer portion of the pull rope (22) is sleeved with a sleeve (36), and one end of the sleeve (36) is fixed with the handlebar (5).

9. A baby carriage is characterized in that: comprising the tricycle body according to any of claims 1-8, said frame (1) being provided at its front end with a mounting frame (13), said mounting frame (13) being provided with a sleeping basket (14).