CN204055893U - Children trolley - Google Patents

Abstract

The utility model discloses a stroller for children. It includes a vehicle frame, a front wheel assembly, and a rear wheel assembly. The vehicle frame includes: a push rod; a front support, the push rod is connected to the front support in a movable manner along the length direction of the front support; a rear support, the upper end of which is rotatably connected to the front support The lower part of the push rod; the bottom rod, which is in the shape of a smooth arc rod protruding downward, the front end and the rear end of the bottom rod are respectively rotatably connected to the lower end of the front bracket and the lower end of the rear bracket; the front wheel assembly can be relatively The bottom bar is reversibly connected to the bottom of the front bracket or the front of the bottom bar, and the rear wheel assembly is reversibly connected to the bottom of the rear bracket or the rear of the bottom bar. The cart has two use states. , the front wheel assembly and the rear wheel assembly are on the ground, and the cart can be pushed; in the second use state, the front wheel assembly and the rear wheel assembly are turned over to the top of the bottom bar, the bottom bar is on the ground, and the cart can swing on the ground.

Description

stroller

technical field

The utility model relates to a stroller for children.

Background technique

In the prior art, a stroller generally includes a frame with an unfolded position and a folded position, a front wheel assembly arranged at the bottom front of the frame, a rear wheel assembly arranged at the bottom rear of the frame, and the The vehicle frame is locked in the vehicle frame locking mechanism under the unfolded position, and the seat pocket is arranged on the vehicle frame. Existing baby strollers have a wide variety of frames, the number of rods of the frame is different, the connection relationship between the rods, and the connection positions are different, so the folding principles and folding methods are different. The convenience of folding and small size after folding are the goals pursued by the designers of baby strollers.

Contents of the invention

In view of the above problems, the purpose of this utility model is to provide a children's stroller, which is easy to fold, has a small volume after folding, and has a swing function.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A children's stroller, comprising a vehicle frame having an unfolded position and a folded position, a front wheel assembly and a rear wheel assembly mounted on the bottom of the vehicle frame, the vehicle frame comprising:

putter;

A front bracket, the push rod is connected to the front bracket in a movable manner along the length direction of the front bracket;

a rear bracket, the upper end of which is rotatably connected to the lower part of the push rod;

Bottom rod, which is in the shape of a smooth arc-shaped rod protruding downward, the front end and the rear end of the bottom rod are respectively rotatably connected to the lower end of the front bracket and the lower end of the rear bracket;

The front wheel assembly is reversibly connected to the bottom of the front bracket or the front of the bottom bar, and the rear wheel assembly is connected to the bottom of the rear bracket or behind the bottom bar in a reversible manner relative to the bottom bar. In the part, the cart has two states of use. When the cart is in the first state of use, the front wheel assembly and the rear wheel assembly are on the ground, and the cart can be pushed; the cart is in the second state. In the state of use, the front wheel assembly and the rear wheel assembly are overturned to the top of the bottom bar, the bottom bar touches the ground, and the stroller can swing on the ground.

Preferably, the front wheel assembly includes a front connecting frame with one end rotatably connected to the lower end of the front bracket or the front end of the bottom bar, and a front wheel connected to the other end of the front connecting frame rotatably around its own axis. , the rear wheel assembly includes a rear connecting frame with one end rotatably connected to the lower end of the rear bracket or the rear end of the bottom bar, and a rear wheel rotatably connected to the other end of the rear connecting frame around its own axis, When the vehicle frame is in the folded position, the front wheel assembly, the rear wheel assembly and the bottom bar are close together.

More preferably, the rear wheel assembly includes a rear wheel locking mechanism for locking the rear wheel, and the rear wheel locking mechanism includes a first lock pin that is movably arranged on the rear connecting frame in the up and down direction, The groove provided on the rear connecting frame, the bottom bar has a locking groove matching with the first locking pin and facing downwards and a protrusion matching with the groove, when the frame In the first use state, the first lock pin is inserted into the lock groove; when the frame is in the second use state and folded position, the protrusion is inserted into the groove.

Preferably, the push rod is sleeved on the front bracket, the lower end of the push rod has a slider, the upper end of the rear bracket is rotatably connected to the slider, and the stroller includes a The first locking mechanism in the unfolded position, the first locking mechanism includes a second locking pin movably arranged on the slider, locking holes respectively opened on the push rod and the front bracket, when the When the second locking pin is inserted into the two locking holes, the push rod and the front bracket are locked.

More preferably, an elastic member for resetting the second locking pin is connected between the second locking pin and the slider.

More preferably, the first locking mechanism further includes a folding handle for driving the second locking pin out of the locking hole, and the folding handle is arranged on the push rod.

Further, the first locking mechanism also includes a safety button slidably arranged on the push rod, a slot is provided on the folding handle, and the safety button has a locking part that matches the slot. When the locking part is locked in the slot, the folding handle is locked.

More preferably, the slider is provided with at least one first roller that can rotate around its own axis, the circumferential surface of the first roller is in rolling contact with the outer wall of the front bracket, and the upper end of the front bracket is set There is at least one second roller that can rotate around its own axis, and the peripheral surface of the second roller is in rolling contact with the inner wall of the push rod.

Preferably, the push rod includes a lower push rod that is movably connected to the front bracket, an upper push rod that is rotatably connected to the upper end of the lower push rod for the pusher to hold, and is used to hold the lower push rod. A second locking mechanism for locking and unlocking the push rod and the upper push rod. When the vehicle frame is being folded, the upper push rod draws closer to the bottom rod.

Preferably, a slider is fixedly arranged on one of the push rod and the front bracket, and the rear bracket is rotatably connected to the slider.

The utility model adopts the above structure, and has the following advantages compared with the prior art: the push rod moves down relative to the front bracket, and the rear bracket is driven to rotate downward, so that the push rod, the front bracket, and the rear bracket are all close to the bottom rod, and the front The wheel assembly and the rear wheel assembly are turned upwards to complete the folding of the entire stroller, which is convenient to fold and has a small volume after folding; when the front wheel assembly and the rear wheel assembly are turned over the bottom bar, the bottom bar touches the ground so that the cart can face the ground Swing, with swing function.

Description of drawings

Accompanying drawing 1 is the stereogram when the utility model is in the first use state;

Accompanying drawing 2 is a side view of the utility model in the first use state;

Accompanying drawing 3 is the structural representation of the utility model when in the first use state;

Accompanying drawing 4 is the partial enlarged view of place A in accompanying drawing 3;

Accompanying drawing 5 is the partial enlarged view of B place in accompanying drawing 3;

Accompanying drawing 6 is the side view of vehicle frame 1 of the present invention in the folding process;

Accompanying drawing 7 is the side view of vehicle frame 1 of the present invention in the folded position;

Accompanying drawing 8 is a side view of the utility model in the second use state.

Among them: 1, vehicle frame; 11, push rod; 111, upper push rod; 112, lower push rod; 113, push rod adjustment electric bell; 114, slider; 115, first roller; 12, front bracket; 121, second Two rollers; 13, rear support; 14, bottom bar; 141, lock groove; 142, protrusion; 15, first locking mechanism; 151, lock hole; 152, second lock pin; 153, compression spring; 154, folding Handle; 1541, card slot; 155, safety button; 1551, locking part;

2. Front wheel assembly; 21. Mounting seat; 22. Front connecting frame; 23. Front wheel;

3, the rear wheel assembly; 31, the rear connecting frame; 311, the first lock pin; 312, the groove; 32, the rear wheel.

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, so that the protection scope of the utility model can be defined more clearly .

Accompanying drawing 1 to accompanying drawing 8 show a kind of stroller for children. It includes a vehicle frame 1 with an unfolded position and a folded position, a front wheel assembly 2 and a rear wheel assembly 3 mounted on the bottom of the vehicle frame 1 . When the vehicle frame 1 is in the unfolded position, according to the positions of the front wheel assembly 2 and the rear wheel assembly 3, the vehicle frame 1 of the stroller has the first and second two use states again, in the first use state In the second use state, the baby stroller can be converted and can be swayed relative to the ground to have the function of a rocking chair or a rocking bed.

As shown in accompanying drawings 1 to 3 , the vehicle frame 1 includes a push rod 11 , a front bracket 12 , a rear bracket 13 , a bottom bar 14 and a first locking mechanism 15 respectively located on the left and right sides. The lower ends of the front brackets 12 on both sides are connected to form a roughly "U" structure, the front ends of the two bottom bars 14 are connected, and the front wheel assembly 2 can be installed on the front brackets 12 and At the joints of the bottom bars 14 on both sides, the rear wheel assembly 3 can be installed on the rear ends of the bottom bars 14 on both sides in an overturned manner relative to the bottom bars 14, and the two rear wheels 32 are connected by a wheel axle. A brake pedal is provided. The push rod 11 is connected to the front support 12 movably along the length direction of the front support 12, the upper end of the rear support 13 is rotatably connected to the bottom of the push rod 11, and the front end and the rear end of the bottom rod 14 are respectively movable. Rotationally connected to the lower end of the front bracket 12 and the lower end of the rear bracket 13 . When the vehicle frame 1 is in the unfolded position, the first locking mechanisms 15 on both sides lock the push rod 11 and the front bracket 12 respectively, and the front bracket 12, the rear bracket 13 and the bottom rod 14 on both sides respectively form a stable When the vehicle frame 1 is in the folded position, the first locking mechanism 15 is unlocked, and the upper part of the front bracket 12 and the upper part of the rear bracket 13 are close to the bottom bar 14 .

As shown in Figure 1 and Figure 2, the front wheel assembly 2 includes a mounting base 21, a front connecting frame 22 and a front wheel 23, and the front bracket 12 and the bottom bar 14 are rotatably installed on the mounting base 21, respectively. The upper end of the front connecting frame 22 is rotatably connected to the mounting seat 21, and the lower end is rotatably connected to the front wheel 23, wherein the front bracket 12, the bottom bar 14 and the front connecting rotation axis all extend along the left and right directions, and the front Wheel 23 can rotate around its own axis relative to front connecting frame 22 . The rear wheel assembly 3 includes a rear connecting frame 31 and a rear wheel 32. The upper end of the rear connecting frame 31 is rotatably connected to the rear end of the bottom bar 14, and the rear wheel 32 is rotatably connected to the rear connecting frame 32 around its own axis. Frame 31 lower ends. As shown in FIG. 7 , when the vehicle frame 1 is in the folded position, the front wheels 23 and the rear wheels 32 are respectively turned up to approach the bottom bar 14 , and the folded vehicle frame 1 has a smaller volume.

The bottom rod 14 is in the shape of a smooth arc rod protruding downward. The front wheel assembly 2 includes a front wheel locking mechanism, and the rear wheel assembly 3 includes a rear wheel locking mechanism. As shown in Figure 2, when the frame 1 of the stroller is in the first use state, the circumferential surfaces of the front wheels 23 and the rear wheels 32 are in rolling contact with the ground to support the stroller, and the front Wheel 23 and rear wheel 32 are locked in this position. As shown in Figure 8, when the frame 1 of the stroller is in the second use state, the front wheel 23 and the rear wheel 32 are turned over to the top of the bottom bar 14 and locked in this position respectively, the The bottom bar 14 is in contact with the ground to support the stroller.

Specifically, as shown in FIG. 3 , the rear wheel locking mechanism includes a first lock pin 311 that is movably arranged on the rear connecting frame 31 in the up and down direction, and a concave hole that is arranged on the rear connecting frame 31 . Slot 312, an elastic connecting member (not shown in the figure) connected between the first locking pin 311 and the rear connecting frame 31 for allowing the first locking pin 311 to move downward, the bottom bar 14 has The lock groove 141 that matches with the first lock pin 311 and faces downward and the protrusion 142 that matches with the groove 312, when the vehicle frame 1 is in the first use state, the first lock The pin 311 is inserted into the lock groove 141, and the rear wheel 32 is locked under the bottom bar 14; when the vehicle frame 1 is in the second use state and folded position, the protrusion 142 is inserted into the groove 312, and the rear wheel 32 is locked. 32 is locked above the bottom bar 14.

The push rod 11 includes a lower push rod 112 that is movably connected to the front bracket 12, an upper push rod 111 that is rotatably connected to the upper end of the lower push rod 112 and is used for gripping by a pusher, and is used to hold the push rod. The second locking mechanism for locking and unlocking the lower push rod 112 and the upper push rod 111 is a push rod adjustment bell 113 arranged between the lower push rod 112 and the upper push rod 111 . When the vehicle frame 1 is being folded, the push rod adjusts the electric bell 113 to unlock, and the upper push rod 111 rotates downward to move closer to the bottom rod 14 .

As shown in FIG. 4 , the push rod 11 is sleeved on the front bracket 12 , specifically, the lower push rod 112 is sleeved on the front bracket 12 . The lower end of the lower push rod 112 has a slider 114, the upper end of the rear bracket 13 is rotatably connected to the slider 114, the first locking mechanism 15 includes a movable The second lock pin 152 and the lock hole 151 respectively opened on the push rod 11 and the front bracket 12, when the second lock pin 152 is inserted into the two lock holes 151, the push rod 11 and the front bracket 12 The bracket 12 is locked. An elastic member for resetting the second lock pin 152 is connected between the second lock pin 152 and the slide block 114. The elastic member is a compression spring 153. When the lower push rod 112 moves up to a designated position, the lower push rod The lock hole 151 on the 112 coincides with the lock hole 151 on the front bracket 12, and the reset force of the stage clip 153 promotes the second lock pin 152 to be inserted into the lock hole 151 to lock the lower push rod 112 and the front bracket 12. The first locking mechanism 15 also includes a folding handle 154 for driving the second locking pin 152 out of the locking hole 151, the folding handle 154 is arranged on the push rod 11, and the folding handle 154 is connected to The second locking pin 152 is interlocked.

As shown in FIG. 5 , in order to avoid the movement of the folding handle 154 caused by abnormal operations, the first locking mechanism 15 also includes a sliding mechanism arranged on the lower push rod 112 along a direction perpendicular to the axis line of the lower push rod 112 . The insurance button 155 of. The folding handle 154 defines a locking slot 1541 extending in a direction perpendicular to the axis of the lower push rod 112 , and the safety button 155 has a locking portion 1551 matched with the locking slot 1541 . When the locking portion 1551 is locked in the slot 1541, the folding handle 154 is locked. Press the safety button 155 in a direction perpendicular to the axis of the lower push rod 112 , the locking part 1551 is disengaged from the locking groove 1541 , and the folding handle 154 is unlocked.

The slider 114 is provided with at least one first roller 115 that can rotate around its own axis, the peripheral surface of the first roller 115 is in rolling contact with the outer wall of the front bracket 12, specifically, the lower push rod 112 The lower end is provided with a through hole for the first rolling path to pass through. Part of the first rolling wheel 115 passes through the through hole and the peripheral surface of the first rolling wheel 115 is in contact with the outer wall of the front bracket 12 . The upper end of the front bracket 12 is provided with at least one second roller 121 that can rotate around its own axis, and the peripheral surface of the second roller 121 is in rolling contact with the inner wall of the push rod 11 . The lower push rod 112 is in rolling contact with the front bracket 12 compared to the sliding contact in the prior art. Less friction, smoother relative movement, less wear and tear on components, avoiding reduced life.

As shown in Figures 2, 6 and 7, the folding process of the stroller is as follows: unlock the folding handle 154, pull the folding handle 154 to drive the first lock pin 311 out of the lock hole 151, so that the lower push rod 112 and the front Unlock the bracket 12, press down the push rod 11, the front bracket 12 and the rear bracket 13 will rotate downwards accordingly, the front bracket 12 and the rear bracket 13 are completely close to the bottom rod 14 and after the shrinkage of the push rod 112 and the front bracket 12 is completed, the The front wheel assembly 2 and the rear wheel assembly 3 are unlocked and flipped up to close to the bottom bar 14 , finally the push rod is unlocked to adjust the electric bell 11 , and the upper push rod 111 is turned downward to make it lean against the bottom bar 14 rear end.

The front, back, left and right, and up and down mentioned in the utility model are all defined by the orientation of the frame 1 of the stroller in the first use state. Specifically, front and back respectively correspond to "left" and "right" on the paper in Figure 2, up and down correspond to "up" and "down" on the paper in Figure 2, and left and right respectively correspond to the directions perpendicular to the paper. on both sides of the paper.

The above-mentioned embodiment is only to illustrate the technical concept and characteristics of the present utility model. It is a preferred embodiment, and its purpose is to allow those familiar with this technology to understand the content of the present utility model and implement it accordingly, and it cannot be used to limit it. Protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (10)

1. A stroller for children, comprising a frame (1) with an unfolded position and a folded position, a front wheel assembly (2) and a rear wheel assembly (3) mounted on the bottom of the frame (1), characterized in that , the frame (1) includes: push rod (11); A front bracket (12), the push rod (11) is movably connected to the front bracket (12) along the length direction of the front bracket (12); The rear bracket (13), the upper end of which is rotatably connected to the lower part of the push rod (11) through a pivot; Bottom rod (14), which is in the shape of a smooth arc-shaped rod protruding downward, the front end and rear end of the bottom rod (14) are rotatably connected to the lower end of the front bracket (12) and the rear bracket respectively the lower end of (13); The front wheel assembly (2) is reversibly connected to the bottom of the front bracket (12) or the front of the bottom bar (14) relative to the bottom bar (14), and the rear wheel assembly (3) can be turned relative to the bottom bar (14). The bottom bar (14) is reversibly connected to the bottom of the rear bracket (13) or the rear of the bottom bar (14). The cart has two usage states. When the cart is in the first use state, the The front wheel assembly (2) and the rear wheel assembly (3) are on the ground, and the cart can be pushed; when the cart is in the second use state, the front wheel assembly (2) and the rear wheel assembly (3 ) overturn to the top of the bottom bar (14), the bottom bar (14) touches the ground, and the cart can swing on the ground. 2. The stroller according to claim 1, characterized in that: the front wheel assembly (2) includes a front wheel with one end rotatably connected to the lower end of the front bracket (12) or the front end of the bottom bar (14). The connecting frame (22), the front wheel (23) connected to the other end of the front connecting frame (22) rotatably around its own axis, the rear wheel assembly (3) includes one end rotatably connected to the The rear connecting frame (31) at the lower end of the rear bracket (13) or the rear end of the bottom rod (14), and the rear wheel (32) connected to the other end of the rear connecting frame (31) rotatably around its own axis, When the vehicle frame (1) is in the folded position, the front wheel assembly (2), the rear wheel assembly (3) and the bottom bar (14) are close together. 3. The stroller according to claim 2, characterized in that: the rear wheel assembly (3) includes a rear wheel locking mechanism for locking the rear wheel (32), and the rear wheel locking mechanism includes a The first lock pin (311) arranged on the rear connecting frame (31) to move in the up and down direction, the groove (312) arranged on the rear connecting frame (31), the bottom bar (14) There is a locking groove (141) matching with the first locking pin (311) facing downward and a protrusion (142) matching with the groove (312), when the frame (1) is in In the first use state, the first lock pin (311) is inserted into the lock groove (141); when the frame (1) is in the second use state and folded position, the protrusion (142) is inserted into the recess slot (312). 4. The stroller according to claim 1, characterized in that: the push rod (11) is sheathed on the front bracket (12), and the lower end of the push rod (11) has a slider (114) , the upper end of the rear bracket (13) is rotatably connected to the slider (114), and the stroller includes a first locking mechanism (15) for locking the frame (1) in the unfolded position, the second A locking mechanism (15) includes a second locking pin (152) movably arranged on the slider (114), locking holes ( 151), when the second lock pin (152) is inserted into the two lock holes (151), the push rod (11) and the front bracket (12) are locked. 5. The children's stroller according to claim 4, characterized in that: an elastic member for resetting the second lock pin (152) is connected between the second lock pin (152) and the slider (114) (153). 6. The children's stroller according to claim 4, characterized in that: the first locking mechanism (15) further includes a folding mechanism for driving the second locking pin (152) out of the locking hole (151) A handle (154), the folding handle (154) is arranged on the push rod (11). 7. The stroller according to claim 6, characterized in that: the first locking mechanism (15) further includes a safety button (155) slidably arranged on the push rod (11), and the folding handle ( 154) is provided with a card slot (1541), and the safety button (155) has a locking part (1551) matching with the card slot (1541), when the locking part (1551) is stuck in the card slot ( 1541), the folding handle (154) is locked. 8. The stroller according to claim 4, characterized in that: the slider (114) is provided with at least one first roller (115) that can rotate around its own axis, and the first roller (115) ) is in rolling contact with the outer wall of the front bracket (12), the upper end of the front bracket (12) is provided with at least one second roller (121) that can rotate around its own axis, the second The circumferential surface of the roller (121) is in rolling contact with the inner wall of the push rod (11). 9. The children's stroller according to claim 1, characterized in that: the push rod (11) includes a lower push rod (112) movably connected to the front bracket (12), and a lower push rod (112) rotatably connected to the lower push rod The upper push rod (111) at the upper end of the rod (112) is used for holding by the pusher and the second locking mechanism for locking and unlocking the lower push rod (112) and the upper push rod (111) (113), when the vehicle frame (1) is being folded, the upper push rod (111) moves closer to the bottom rod (14). 10 . The stroller for children according to claim 1 , wherein a slider is fixedly arranged on one of the push rod and the front bracket, and the rear bracket is rotatably connected to the slider. 11 .