CN101767602B - Baby stroller and its handle height adjustment mechanism - Google Patents

Abstract

A handle height adjusting mechanism of a baby carriage comprises a frame pipe and a handle pipe movably sleeved at the top end of the frame pipe, wherein the frame pipe comprises a plurality of positioning holes which are arranged at intervals along the axial direction, the handle height adjusting mechanism comprises a clamping piece, a release piece, an actuating piece and an elastic element, the clamping piece is arranged in the handle pipe, the release piece is movably connected in the handle pipe and can be used for driving the clamping piece, the actuating piece is movably arranged on the handle pipe and is linked with the release piece, the elastic element is used for resetting the release piece, the clamping piece can pass through a through hole in the handle pipe and is clamped in the positioning hole which is aligned with the through hole and is arranged at a selected height position, the release piece can be driven to move relative to the handle pipe through the actuating piece so as to be separated from the clamping of the positioning holes in a linkage manner, and therefore, the operation is simple and labor-saving, the height position of the handle pipe fitting can be controlled by a user from the far end and can be adjusted by the user according to the requirement.

Description

Baby stroller and its handle height adjustment mechanism

technical field

The invention relates to a handle mechanism of a baby carriage, in particular to a baby carriage and a handle height adjustment mechanism thereof.

Background technique

Generally, a height adjustment mechanism is installed between the handle pipe fittings of baby strollers and the frame pipe fittings connected to them. The user can control the sliding of the handle pipe fittings relative to the frame pipe fittings by operating the height adjustment mechanism to adjust the relative height of the handle pipe fittings. Based on the height of the frame pipe fittings, the user can adjust the height position of the handle pipe fittings according to his own height, such as the Chinese patent with publication number CN1772546A.

However, when the adjustment frame in this case is operated, the locking pin can be locked or disengaged from the fitting hole through the friction of the cam groove, and the adjustment frame will rub against the upper tube when sliding in the upper tube, so , this kind of design makes the user more laborious in operation.

Contents of the invention

The main purpose of the present invention is to provide a handlebar height adjustment mechanism of a stroller with simple structure and easy operation, which can be controlled by the user from the remote end and adjust the height of the handle pipe according to the needs.

Another object of the present invention is to provide a handle height adjustment mechanism for a stroller with a small coefficient of friction between components to save effort during operation.

Another object of the present invention is to provide a stroller with a handle height adjustment mechanism that is simple in structure and easy to operate, and can be controlled by the user from the remote end to adjust the height position of the handle pipe according to the needs. The friction coefficient is small so that it is more labor-saving during operation.

The purpose of the present invention and the solution to the background technical problems are achieved by adopting the following technical solutions. The handle height adjustment mechanism of the stroller proposed according to the present invention includes a frame pipe, and a frame pipe that can be movably worn on the top of the frame pipe. The handle pipe fittings and the frame pipe fittings include a plurality of positioning holes arranged at intervals along the axial direction.

The handle height adjustment mechanism includes a catch piece, a lock release piece, an actuating piece, and an elastic element. The catch piece is arranged in the handle pipe, and the lock release piece is movably connected to the handle pipe. The locking part can be interlocked with the locking part. The actuating part is movably arranged on the handle pipe and linked with the release part. The elastic element is used to provide the reset of the release part. The latch is engaged in a positioning hole at a selected height position aligned with the through hole, and the release member can be driven to move by the movement of the actuating member relative to the handle pipe, so that the latching member is synchronously disengaged from the latching of the positioning hole.

In the aforementioned handle height adjustment mechanism of the stroller, the release member is pivotally connected to the handle pipe and can rotate relative to the handle pipe.

In the aforementioned handle height adjustment mechanism of the stroller, the release member is slidably connected to the handle pipe and can move relative to the handle pipe.

The handle height adjustment mechanism of the aforementioned baby stroller, the handle pipe includes a set of pipes at the top of the frame pipe, and a housing fixed at the bottom of the pipe. set on the shell.

In the handle height adjustment mechanism of the aforementioned stroller, the actuating part includes a set of pull handles arranged on the handle pipe, and a connecting line connected between the release part and the handle. Sliding in one direction drives the unlocking member to rotate, thus, the coefficient of friction between the connecting components is small, which can provide the user with less effort in manipulation and provide the user with remote control of the height adjustment mechanism of the handlebar.

In the above-mentioned handle height adjustment mechanism of the stroller, one of the housing and the catch member is provided with an elongated guide hole, and the handle height adjustment mechanism also includes an elongated guide hole that is connected to the housing and the catch member. Wherein the other engaged pin rod, the elongated guide hole has a first end adjacent to the perforation, and a second end away from the perforation, and the elastic element is constantly biased towards the release member so that the pin rod is located between the first end and the second end. One of the two ends.

The above-mentioned handle height adjustment mechanism of the stroller, one of the design methods is that the elongated guide hole is provided in the housing, the pin rod is passed through the elongated guide hole and is pivotally connected with the locking part and the lock release part, and the elastic element The constant bias is applied to the lock release part so that the pin rod is located at the first end, so that the locking part is kept at the position locked in the positioning hole.

The above-mentioned handle height adjustment mechanism of the stroller, wherein another design method is that the elongated guide hole is provided in the catch member, the pin rod is passed through the elongated guide hole and engaged with the housing, and the elastic element releases the lock in a constant direction. The component is biased so that the pin rod is located at the second end, so that the locking component remains in the position of being locked in the positioning hole. The locking member includes two spaced apart protrusions, and the release member includes a tooth located between the two protrusions and used to push each protrusion, so that the release member pushes the two protrusions of the locking member respectively through the protrusions. The convex part can drive the locking part to disengage from the positioning hole or be locked in the positioning hole.

In the handle height adjustment mechanism of the aforementioned stroller, the elastic element is a torsion spring whose two ends are respectively fastened to the housing and the release piece, so that the release piece can be driven back and the catch piece is reset to the catch at the position of the positioning hole. In the handle height adjustment mechanism of the aforementioned stroller, the release member has an oblique guide hole, and the handle height adjustment mechanism includes a pin rod that passes through the oblique guide hole and engages with the catch member. When the pipe fitting moves, the pin rod moves along the oblique guide hole so that the locking part breaks away from the locking of the positioning hole.

In the handle height adjustment mechanism of the aforementioned stroller, the actuating part includes a set of pull handles arranged on the handle pipe, and a connecting line connected between the release part and the handle. Sliding in one direction drives the release member to slide, thus, the coefficient of friction between the connecting components is small, which can provide the user with less effort in manipulation and provide the user with remote control of the height adjustment mechanism of the handlebar.

In the handlebar height adjustment mechanism of the baby carriage mentioned above, the housing includes a long chute for the sliding of the lock release member.

In the handle height adjustment mechanism of the aforementioned stroller, the oblique guide hole is used to define the movement stroke of the locking member. The oblique guide hole has a first end adjacent to the perforation and a second end far away from the perforation. The elastic element releases in a constant direction. The lock is biased so that the pin is at the first end.

In the above-mentioned handle height adjustment mechanism of the stroller, the elastic element is a compression spring whose two ends are respectively abutted against the housing and the release piece, thereby driving the release piece to reset and linking the catch piece through the pin rod Return to the position where it is locked in the positioning hole.

According to the baby stroller proposed by the present invention, it includes a frame pipe, a handle pipe and a handle height adjustment mechanism.

The frame pipe includes a plurality of positioning holes arranged at intervals along the axial direction. The handle pipe can be movably worn on the top of the frame pipe. An elastic element, the locking part is arranged in the handle pipe, the release part is movably connected to the handle pipe, the release part can link the catch part, the elastic element is used to provide the reset of the release part, and the catch part It can pass through a perforation on the handle pipe and engage with one of the positioning holes in the positioning hole, so as to lock the handle pipe at a selected height position relative to the frame pipe, and the unlocking member can be controlled by remote control. Link the locking member to disengage from the locking with the positioning hole.

In the aforementioned stroller, the handle height adjustment mechanism includes an actuating member slidably disposed on the handle pipe, and the actuating member can link the latching member to disengage from the latching with the positioning hole.

In the aforementioned stroller, the release member is pivotally connected to the handle pipe and can rotate relative to the handle pipe.

In the aforementioned stroller, the lock release member is slidably connected to the handle pipe and can move relative to the handle pipe.

In the aforementioned stroller, the handle tube includes a set of tubes at the top of the frame tube, and a housing fixed at the bottom of the tube and protruding from the bottom of the tube, the perforation, the latch, the release and The elastic element is arranged on the casing.

Through the above technical solution, the advantages and beneficial effects of the handle height adjustment mechanism of the stroller of the present invention are that the handle pipe can be positioned relatively The frame tubes are locked in a selected height position. By manipulating the pull handle of the actuating part, the lock release part can be driven to move, and the catch part can be separated from the positioning hole in conjunction with the release force of the elastic element, so that the release part can drive the catch part to return to the catch position. As a result, the handle pipe can be switched between the locked state and the unlocked state relative to the frame pipe. The structural design is relatively simple, and the operation is relatively simple and labor-saving. It can be controlled by the user from the remote end and adjusted according to the needs. The height position of the handle fitting.

Description of drawings

FIG. 1 is a perspective view illustrating the position of the first preferred embodiment of the handle height adjustment mechanism of the stroller of the present invention disposed on the stroller.

Fig. 2 is a cross-sectional view illustrating that the first preferred embodiment of the handlebar height adjustment mechanism of the stroller of the present invention is disposed between the frame tube and the handle tube.

FIG. 3 is a three-dimensional exploded view of the first preferred embodiment of the handle height adjustment mechanism of the stroller of the present invention, illustrating the assembly relationship of the housing, the latching part, the locking part and the elastic element.

Fig. 4 is a partial enlarged view of the first preferred embodiment of the handle height adjustment mechanism of the stroller of the present invention.

Fig. 5 is a cross-sectional view illustrating the first preferred embodiment of the handle height adjustment mechanism of the stroller of the present invention. The catch member is passed through the through hole and locked in the positioning hole, so that the handle pipe and the frame pipe are locked. state.

Fig. 6 is a cross-sectional view illustrating the first preferred embodiment of the height adjustment mechanism of the handlebar of the stroller of the present invention.

Fig. 7 is a cross-sectional view illustrating that the second preferred embodiment of the handlebar height adjustment mechanism of the stroller of the present invention is disposed between the frame tube and the handle tube.

Fig. 8 is an exploded perspective view of the second preferred embodiment of the handle height adjustment mechanism of the stroller of the present invention, illustrating the assembly relationship of the housing, the latching part, the locking part and the elastic element.

Fig. 9 is a cross-sectional view illustrating the second preferred embodiment of the handle height adjustment mechanism of the stroller of the present invention. The locking member is passed through the perforation hole and locked in the positioning hole, so that the handle pipe and the frame pipe are locked. state.

Fig. 10 is a cross-sectional view illustrating the second preferred embodiment of the handlebar height adjustment mechanism of the baby stroller of the present invention. The locking part is disengaged from the positioning hole, so that the handle pipe and the frame pipe are in an unlocked state.

Fig. 11 is a cross-sectional view illustrating that the third preferred embodiment of the handlebar height adjustment mechanism of the stroller of the present invention is arranged between the frame tube and the handle tube.

Fig. 12 is a cross-sectional view illustrating the third preferred embodiment of the handle height adjustment mechanism of the stroller of the present invention. The catch member is passed through the through hole and locked in the positioning hole, so that the handle pipe and the frame pipe are locked. state.

Fig. 13 is a cross-sectional view illustrating the third preferred embodiment of the handlebar height adjustment mechanism of the baby stroller of the present invention, in which the locking member is disengaged from the positioning hole, so that the handle pipe and the frame pipe are in an unlocked state.

Fig. 14 is a sectional view illustrating that the third preferred embodiment of the handle height adjustment mechanism of the stroller of the present invention is that the pin rod is integrally formed on the locking member.

Detailed ways

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed descriptions of three preferred embodiments in conjunction with the accompanying drawings. Through the description of the specific implementation, it should be possible to gain a deeper and more specific understanding of the technical means and effects of the present invention to achieve the intended purpose. However, the attached drawings are only for reference and illustration, and are not intended to limit the present invention. Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

As shown in Fig. 1 and Fig. 2, it is the first preferred embodiment of the handlebar height adjustment mechanism of the stroller of the present invention. Handlebar fittings 2, and two handlebar height adjustment mechanisms 4, each handlebar fitting 2 includes a pipe part 20 movably threaded on the top end of each frame pipe part 1, and a housing 41 fixed at the bottom end of the pipe part 20, And a handle 21 arranged on the top of the pipe part 20 for the user to hold, each handle height adjustment mechanism 4 is arranged between each frame pipe 1 and each handle pipe 2, in order to adjust the handle pipe 2 relative It is at the height of the frame tube 1, and can fix the handlebar tube 2 at a selected height position relative to the frame tube 1. The handle height adjustment mechanism 4 disclosed in this embodiment can also be applied to other types of strollers, and is not limited to the way of being applied to the stroller 100 .

As shown in Fig. 2, Fig. 3 and Fig. 4, each frame pipe fitting 1 includes a plurality of rectangular positioning holes 11 arranged at intervals along the axial direction, and the housing 41 is locked in the pipe portion 20 of the handle pipe fitting 2 and protrudes. Out of the bottom end of the pipe part 20, the housing 41 includes a first shell 411 and a second shell 412 that is covered on the first shell 411. The first and second shells 411, 412 jointly define a wall for locking. The accommodating space 413 for accommodating the locking member 43 and the unlocking member 44, and a perforation 414 located at the side to communicate the accommodating space 413 with the outside and allow the locking member 43 to be exposed. The structure of the first housing 411 and the second housing 412 are equivalent and respectively include an elongated guide hole 415, the elongated guide hole 415 has a first end 416 adjacent to the through hole 414, and a first end 416 on the opposite side and away from the through hole The second end 417 of 414.

Each handlebar height adjustment mechanism 4 comprises a catch piece 43, a lock release piece 44, and a pin rod 45, and the catch piece 43 is sheet-shaped, and one end can pass through the perforation 414 and be connected with a positioning hole for selecting a height position. 11 latching, the other end of the latching member 43 includes a through hole 431 for the pin rod 45 to pass through, through the pin rod 45 to pass through the through hole 431 and the elongated guide hole 415 of the first and second shells 411, 412 at the same time , so that the latching member 43 can be engaged with the first and second housings 411, 412 and can be in a latching position (as shown in FIG. 5 ) and a release position (as shown in FIG. 6 ) relative to the housing 21 to move between. The first housing 411 also includes two guide members 418 adjacent to the through hole 414 and abutting against the opposite sides of the engaging member 43 respectively, so that when the pin rod 45 moves in the elongated guide hole 415, the engaging member 43 It can slide along the long direction of the elongated guide hole 415 through the guidance of the guide member 418 .

The release member 44 includes a pivot hole 440 for the pivot rod 451 to pass through, and a mounting hole 441 for the pin rod 45 to pass through. The pivot hole 410 and the pivot hole 440 of the release member 44 enable the release member 44 to be pivotally connected between the first and second housings 411 and 412, so that the release member 44 takes the pivot rod 451 as the axis When rotating relative to the first and second housings 411 and 412, the pin rod 45 can be driven to move between the first end 416 and the second end 417 of the elongated guide hole 415, and can be linked with the locking member 43 along the elongated guide hole. The hole 415 slides lengthwise.

The first shell 411 forms a surrounding wall 419 around the pivot hole 410, and the handle height adjustment mechanism 4 also includes an elastic element 46 arranged in the surrounding wall 419. In this embodiment, the elastic element 46 is a A torsion spring fixed in a protrusion 420 of the first housing 411 and a first slot 442 of the release member 44 is used for biasing the release member 44 and providing elastic force for restoring the release member 44 . Since the pivoting rod 451 passes through the pivoting holes 410 of the first and second shells 411, 412, it will pass through the elastic element 46 at the same time, and the design of the surrounding wall 419 can prevent the elastic element 46 and the pivoting rod 451 from shaking situation. The handle height adjustment mechanism 4 also includes an actuating part 47 for driving the lock release part 44 to rotate. The rivet 472 and a connecting wire 473 are passed through the rivet 472 through an elongated opening 21 extending axially on the handle pipe 2 and engaged with the handle 471, so that the handle 471 can be slidably installed on the Handle the pipe part 20 of the pipe fitting 2. The connection wire 473 is a steel wire, one end of which is connected to the rivet 472, and the other end passes through an opening 421 above the housing 41 and is locked in a second slot 443 of the release member 44, thereby pulling the handle When 471 drives the rivet 472 to slide along the axis of the handle pipe 2 , the connecting wire 473 can pull the release member 44 to pivot around the pivot rod 451 .

As shown in Figure 2, Figure 4 and Figure 5, due to the elastic force of the elastic element 46, the pin rod 45 is always located at the first end 416 of the elongated guide hole 415, and the rivet 472 is located at the bottom end of the elongated hole 21. At the same time, the locking member 43 will pass through the perforation 414 of the housing 41 and be locked in a positioning hole 11 of the frame pipe 1 to be in the locking position, so that the handle pipe 2 is locked at a certain height relative to the frame pipe 1 Location.

As shown in Figure 2 and Figure 6, when wanting to adjust the height position of the handle pipe 2, the user needs to pull the handle 471 of the actuator 47 upwards in the direction indicated by the arrow I, and the connecting line 473 will pull the release member 44 and Make it rotate relative to the housing 41 in the direction indicated by the arrow II, and the release member 44 is linked with the locking member 43 by the pin rod 45 so that it shrinks inward in the direction indicated by the arrow III and gradually disengages from the engagement with the positioning hole 11, When the pin rod 45 is located at the second end 417 of the elongated guide hole 415, the locking member 43 is completely out of the locking position with the positioning hole 11, so that the handle pipe 2 and the frame pipe 1 are in an unlocked state. Otherwise, the height position of the handle pipe 2 can be adjusted upwards or downwards relative to the frame pipe 1 . In the unlocked state, the user moves the handle 2 to a target position, and then releases the handle 471, and by virtue of the elastic force of the elastic element 46, the unlocking member 44 drives the pin rod 45 and the latching member 43 along the Reverse movement of the arrow III, the latching member 43 will be pushed back into a positioning hole 11 of the target position, and automatically return to the locked state, thus, the user can adjust the handle of the handle pipe 2 according to his own height. The height position of the handle 21, moreover, through the design of the pull handle 471 and the connecting line 473 of the actuator 47, the user can control the height adjustment of the handle pipe 2 at the end of the handle 21, which can provide users with convenience. In addition, when the handle tube 2 is adjusted to the lowest position, the folded volume of the stroller 100 (as shown in FIG. 1 ) can be further reduced, and the volume and materials of the stroller 100 can be reduced when packed.

It should be noted that, in this embodiment, through the design of the pivotal connection between the release member 44 and the locking member 43, and the design of the pull handle 471 and the connection line 473 of the actuating member 47, the user can manipulate the pull handle 471 Pulling the connection line 473 can drive the lock release part 44 to rotate and the interlocking catch part 43 to break away from the catch with the positioning hole 11. Because the friction coefficient between the connecting parts is small, it is convenient for the user to control more easily. Save effort.

As shown in Figure 7, Figure 8 and Figure 9, it is the second preferred embodiment of the handle height adjustment mechanism of the stroller of the present invention, the overall structure of the handle height adjustment mechanism 4 is roughly the same as that of the first preferred embodiment , the difference lies in the slightly different designs of the housing 41', the engaging member 43' and the releasing member 44'.

The first and second shells 411, 412 respectively include a through hole 422 for the pin rod 45 to pass through, and the locking member 43' includes an elongated guide hole 432 for the pin rod 45 to pass through. The elongated guide hole 432 has an adjacent The first end 433 of the through hole 414, and a second end 434 away from the through hole 414, are guided by the guide part 418, so that the locking member 43' can move along the long direction of the elongated guide hole 432 relative to the pin rod 45 moves between a locking position (as shown in FIG. 9 ) and a release position (as shown in FIG. 10 ). The locking part 43' also includes two protruding parts 435 protruding from the side and spaced apart from each other. The release part 44' includes a protruding tooth 444 protruding from the side and located between the two protruding parts 435. The release part The protruding teeth 444 of 44 ′ can respectively push the protruding parts 435 to drive the locking member 43 ′ to move along the lengthwise direction of the elongated guide hole 432 . Due to the elastic force of the elastic element 46 and the positional relationship between the protruding tooth 444 and the protruding portion 435, the pin rod 45 is always positioned at the second end 434 of the elongated guide hole 432, and at this time, the engaging member 43' will pass through the casing. The through hole 414 of 41 ′ is locked in a positioning hole 11 of the frame tube 1 , so that the handlebar tube 2 is locked at a height position relative to the frame tube 1 .

As shown in Figure 7 and Figure 10, when wanting to adjust the height position of the handle pipe 2, the user needs to pull the handle 471 of the actuator 47 upwards in the direction indicated by the arrow I, and the connecting line 473 will pull the release member 44' And make it rotate relative to the housing 41' in the direction shown by arrow II, the protruding teeth 444 of the release piece 44' will push the convex part 435 inside the locking piece 43', so that the locking piece 43' moves along the direction shown by the arrow III. When the pin rod 45 is located at the first end 433 of the elongated guide hole 432, the locking member 43' completely breaks away from the locking position with the positioning hole 11 and is released. position, so that the handle pipe 2 and the frame pipe 1 are in an unlocked state. In the unlocked state, the user moves the handle pipe 2 to the target position, and then releases the pull handle 471. By virtue of the elastic force of the elastic element 46, the unlocking member 44' is urged to rotate in the opposite direction along the arrow II, and the release The protruding teeth 444 of the locking piece 44' will push the convex part 435 on the outside of the locking piece 43' to move in the opposite direction of the arrow III, so that the locking piece 43' will be pushed back into a positioning hole 11 at the target position, and automatically return into a locked state.

As shown in Figure 11, Figure 12 and Figure 13, it is the third preferred embodiment of the handle height adjustment mechanism of the stroller of the present invention, the overall structure of the handle height adjustment mechanism 4 is roughly the same as that of the first preferred embodiment , the difference lies in the design of the housing 41", the release member 44" and the elastic element 46'.

The inside of the first shell 411 of the housing 41" defines an elongated chute 423. The unlocking part 44" is rectangular and can slide along the elongated chute 423. The unlocking part 44" includes an oblique guide hole 445. The guide hole 445 has a first end 446 adjacent to the through hole 414, and a second end 447 away from the through hole, and the pin rod 45 is passed through the oblique guide hole 445 and the through hole 431 of the locking member 43. The elastic element 46' is a The two ends of the compression spring respectively abut against the side of the release member 44" and one end of the first shell 411, due to the elastic force of the elastic element 46', the pin rod 45 is always positioned at the first end 446 of the oblique guide hole 445, at this time , the locking member 43 will pass through the perforation 414 of the housing 41" and be locked in a positioning hole 11 of the frame pipe 1, so that the handle pipe 2 is locked at a height position relative to the frame pipe 1. It should be explained Yes, during design, the pin rod 45 can also be integrally formed on the locking member 43 as shown in FIG. 14 .

When wanting to adjust the height position of the handle tube 2, the user needs to pull the handle 471 of the actuator 47 upwards in the direction shown by the arrow I, and the connecting line 473 will pull the release member 44" to slide along the elongated chute 423, Because the oblique guide hole 445 of the unlocking part 44" will force the pin rod 45 to slide along the extending direction of the oblique guiding hole 445, and at the same time, guided by the guide part 418, the locking part 43 will follow the release part 44 ” slides inwardly in the direction shown by arrow III and gradually disengages from the engagement with the positioning hole 11. When the pin rod 45 is located at the second end 447 of the oblique guide hole 445, the engagement member 43 completely disengages from the engagement with the positioning hole 11. The latching position is in the release position, so that the handle pipe 2 and the frame pipe 1 are in an unlocked state. In the unlocked state, the user moves the handle pipe 2 to a target position, and then releases the handle 471, through the elastic force of the elastic element 46', the release member 44" is urged to slide in the opposite direction of the arrow I, and the oblique guide hole 445 will force the pin rod 45 to slide along its extending direction. The guide makes the locking member 43 pushed back into a positioning hole 11 at the target position, and automatically returns to the locked state.

In this embodiment, through the combination design of the lock release part 44 ″ with the pin rod 45 and the locking part 43 , and the design of the pull handle 471 and the connecting wire 473 of the actuating part 47 , the user can manipulate the pull handle 471 Pull the connecting wire 473 to drive the lock release part 44" to slide along the elongated chute 423, and the catch part 43 will break away from the catch with the positioning hole 11 as the pin rod 45 moves along the extending direction of the oblique guide hole 445 Because the coefficient of friction between the connecting components is small, it is convenient for the user to control and save effort.

To sum up the above, the handlebar height adjustment mechanism 4 of each embodiment passes through the perforation 414 of the casing 41, 41', 41" and is locked in the positioning hole 11 of the frame pipe 1 by means of the engaging members 43, 43'. The handle pipe 2 can be locked at a selected height position relative to the frame pipe 1. By manipulating the handle 471 of the actuator 47, the lock release 44, 44', 44" can be driven to move in conjunction with the lock The catch pieces 43, 43' are separated from the positioning holes 11, and cooperate with the reset elastic force of the elastic elements 46, 46', so that the release pieces 44, 44', 44" can drive the catch pieces 43, 43' to reset to the catch position, thereby Therefore, the handle pipe 2 can be changed between the locked state and the unlocked state relative to the frame pipe 1, and a handle height adjustment mechanism 4 with simple structure, easy operation and labor-saving can be provided, which can be controlled by the user from the remote end. Adjusting the height position of the handle pipe fitting 2 according to the needs can indeed achieve the purpose of the present invention.

Claims (18)

1. A handlebar height adjustment mechanism for a stroller, the stroller includes a frame pipe, and a handle pipe that is movably threaded on the top of the frame pipe, and the frame pipe includes a plurality of axially The positioning holes arranged at intervals are characterized in that the handle height adjustment mechanism includes: a locking part arranged in the handle pipe; A lock release part movably connected to the handle pipe, the lock release part can be linked with the locking part; an actuating member movably disposed on the handle tube, the actuating member being coupled to the release member; and An elastic element used to provide the reset of the release member; wherein the locking member can pass through a perforation on the handle tube and be locked in a positioning hole at a selected height position aligned with the perforation, and can pass through the triggering The moving part moves relative to the handle tube to drive the release part to move, so that the latching part is detached from the latching of the positioning hole in interlocking manner. 2 . The height adjusting mechanism of the handle of the stroller as claimed in claim 1 , wherein the release member is pivotally connected to the handle pipe and can rotate relative to the handle pipe. 3 . 3 . The handle height adjustment mechanism of the stroller as claimed in claim 1 , wherein the release member is slidably connected to the handle pipe and can move relative to the handle pipe. 4 . 4. The handle height adjustment mechanism of baby stroller according to claim 1, characterized in that, the handle pipe includes a pipe part set on the top end of the frame pipe part, and a housing fixed on the bottom end of the pipe part , the through hole, the latching piece, the release piece and the elastic element are arranged on the housing. 5. The handle height adjustment mechanism of baby stroller as claimed in claim 1, characterized in that, the actuating member comprises a set of pull handles arranged on the handle pipe, and a handle connected to the release member and the The connecting line between the pull handles, the pull handle can slide along the axis of the handle pipe to drive the movement of the release part. 6 . The height adjusting mechanism of the handlebar of the stroller as claimed in claim 2 , wherein the elastic element is a torsion spring whose two ends are fastened to the handle pipe and the release member respectively. 7 . 7 . The height adjustment mechanism of the handlebar of the stroller as claimed in claim 2 or 6 , wherein the locking member is pivotally connected to the unlocking member. 8 . the 8. The handle height adjustment mechanism of baby stroller according to claim 2 or 6, characterized in that, the engaging member comprises two spaced apart protrusions, and the unlocking member comprises a convex teeth. 9. The handle height adjustment mechanism of baby stroller as claimed in claim 4, characterized in that, one of the casing and the locking member is provided with an elongated guide hole, and the handle height adjustment mechanism also includes a through hole A pin rod disposed in the elongated guide hole and engaged with the other one of the housing and the locking member, the elongated guide hole has a first end adjacent to the through hole, and a second end far away from the through hole , the elastic element is constantly biased towards the release member so that the pin is located at one of the first end and the second end. 10. The handle height adjustment mechanism of baby carriage according to claim 9, characterized in that, the elongated guide hole is provided in the casing, and the pin rod is passed through the elongated guide hole and engages with the locking member and the release member are pivotally connected, and the elastic element is constantly biased toward the release member so that the pin is located at the first end. 11. The handle height adjustment mechanism of baby stroller according to claim 9, characterized in that, the elongated guide hole is provided on the locking member, the pin rod is passed through the elongated guide hole and connected to the housing engaged, the elastic element is constantly biased toward the release member so that the pin is located at the second end. 12. The handle height adjustment mechanism of baby stroller according to claim 3, characterized in that, the release member has an oblique guide hole, and the handle height adjustment mechanism includes an oblique guide hole that passes through the oblique guide hole and engages with the card. When the unlocking member moves relative to the handle pipe, the movement of the pin rod along the oblique guide hole makes the locking member disengage from the latching with the positioning hole. 13 . The height adjusting mechanism of the handlebar of the stroller as claimed in claim 3 , wherein the elastic element is a compression spring whose two ends abut against the handle tube and the release member respectively. 14 . 14. A stroller, characterized in that the stroller comprises: A frame tube, including a plurality of positioning holes arranged at intervals along the axial direction; A pipe fitting in one hand can be movably worn on the top of the pipe fitting of the frame; One-handle height adjustment mechanism, including: a locking part arranged in the handle pipe; A lock release part movably connected to the handle pipe, the lock release part can be linked with the locking part; and an elastic element for providing the reset of the release member; Wherein the locking member can pass through a through hole on the handle pipe and engage with one of the positioning holes in the positioning hole, so as to lock the handle pipe at a selected height position relative to the frame pipe, the The unlocking part can be driven by moving an actuating part arranged on the handle tube, and then link the locking part so that it is disengaged from the locking with the positioning hole. 15. The stroller as claimed in claim 14, wherein the handle height adjustment mechanism comprises an actuating member slidably disposed on the handle tube, and the actuating member can be linked with the locking member to Make it out of the catch with the positioning hole. 16. The stroller as claimed in claim 14, wherein the release member is pivotally connected to the handle tube and can rotate relative to the handle tube. 17. The stroller as claimed in claim 14, wherein the release member is slidably connected to the handle tube and can move relative to the handle tube. 18. The stroller as claimed in claim 14, wherein the handle tube includes a tube set on the top of the frame tube, and a tube fixed at the bottom of the tube and protruding from the bottom of the tube. Out of the housing, the through hole, the locking member, the release member and the elastic element are arranged on the housing. the

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