CN215245068U

CN215245068U - Foldable joint structure and baby carriage

Info

Publication number: CN215245068U
Application number: CN202121046022.3U
Authority: CN
Inventors: 易立伟
Original assignee: Zhongshan Mingguan Daily Products Co ltd
Current assignee: Zhongshan Mingguan Daily Products Co ltd
Priority date: 2021-05-15
Filing date: 2021-05-15
Publication date: 2021-12-21
Anticipated expiration: 2031-05-15

Abstract

The utility model discloses a foldable joint structure, including first branch, second branch and third branch, first branch on be equipped with first joint seat, second branch on be equipped with the joint seat of first joint seat pivoted second relatively, third branch on be equipped with the joint seat of second joint seat pivoted relatively, the joint seat of second on still be connected with its pivoted handrail seat relatively, the handrail seat on be connected with preceding handrail, second joint seat and handrail seat between be equipped with and be used for locking the two locking mechanical system, third joint seat and locking mechanical system between be equipped with and drive the unlocking of locking mechanical system and make preceding handrail rotate the transmission part of folding when third joint seat second joint seat rotates folding relatively. The utility model discloses still openly adopt aforesaid joint structure's child's bike. The utility model discloses collapsible joint and mechanism and child's bike simple structure, folding convenient operation.

Description

Foldable joint structure and baby carriage

[ technical field ] A method for producing a semiconductor device

The utility model relates to a collapsible joint structure, the utility model discloses still relate to a child's bike.

[ background of the invention ]

The children's carriage has become an indispensable product in the growth process of infants. A child's vehicle generally includes a foldable frame and a front armrest. When a user folds the children's car, the user generally unlocks the frame to fold the frame, then unlocks the front handrail, and folds the front handrail, so that the folding operation is complex.

Therefore, the present invention is based on the above disadvantages.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art and providing a foldable joint structure with simple structure and convenient folding operation.

The utility model also provides a simple structure's perambulator, this perambulator adopt aforementioned collapsible joint structure, and it is convenient to fold when folding the perambulator.

The utility model discloses a realize through following technical scheme:

a foldable joint structure characterized by: the foldable handrail device comprises a first supporting rod 1, a second supporting rod 2 and a third supporting rod 3, wherein a first joint seat 11 is arranged on the first supporting rod 1, a second joint seat 22 which can rotate relative to the first joint seat 11 is arranged on the second supporting rod 2, a third joint seat 33 which can rotate relative to the second joint seat 22 is arranged on the third supporting rod 3, a handrail seat 44 which can rotate relative to the second joint seat 22 is further connected onto the second joint seat 22, a front handrail 4 is connected onto the handrail seat 44, a locking mechanism 5 which is used for locking the second joint seat 22 and the handrail seat 44 is arranged between the second joint seat 22 and the handrail seat 44, and a transmission part 6 which can drive the locking mechanism 5 to unlock when the third joint seat 33 rotates and is folded relative to the second joint seat 22 so as to enable the front handrail 4 to rotate and be folded is arranged between the third joint seat 33 and the locking mechanism 5.

The foldable joint structure as described above, characterized in that: the first joint seat 11, the second joint seat 22, the third joint seat 33 and the armrest seat 44 are rotatably connected around the same axis.

The foldable joint structure as described above, characterized in that: the third joint seat 33 is provided with a convex part 7, the armrest seat 44 is provided with a leaning part 44a, a spring 8 extending along the circumferential direction is arranged between the leaning part 44a and the convex part 7, when the third joint seat 33 rotates and folds relative to the second joint seat 22 to drive the locking mechanism 5 to unlock, the front armrest 4 rotates and folds relative to the second joint seat 22 to enable the spring 8 to be in a compressed state, and when the third joint seat 33 rotates and unfolds relative to the second joint seat 22, the third joint seat 33 pushes the front armrest 4 to rotate and reset through the spring 8.

The foldable joint structure as described above, characterized in that: the first joint seat 11 and the second joint seat 22 are arranged between the armrest seat 44 and the third joint seat 33, the protruding part 7 comprises a cross rod 71 which is arranged on the third joint seat 33 and transversely penetrates through the second joint seat 22, a protruding block 72 is arranged on the cross rod 71, and one end of the spring 8 abuts against the protruding block 72.

The foldable joint structure as described above, characterized in that: the first joint seat 11 is of a ring-shaped structure, and a part of the armrest seat 44 is arranged in the first joint seat 11 in a penetrating manner.

The foldable joint structure as described above, characterized in that: the armrest seat 44 is provided with a clamping block 44b, the front armrest 4 is provided with a clamping groove 4a clamped with the clamping block 44b, and the front armrest 4 is detachably connected with the clamping block 44b on the armrest seat 44 through the clamping groove 4 a.

The foldable joint structure as described above, characterized in that: the locking mechanism 5 include along the circumferential direction establish the spline groove 51 on handrail seat 44 and second joint seat 22, handrail seat 44 and the space that second joint seat 22 encloses be equipped with in the spline 52 that can block simultaneously with the spline groove 51 on handrail seat 44 and the second joint seat 22, drive unit 6 establish between spline 52 and third joint seat 33 and when third joint seat 33 rotates the folding relative second joint seat 22 spline groove 51 on drive unit 6 promotion spline 52 and the second joint seat 22 break away from, handrail seat 44 and spline 52 between still be equipped with elasticity reset piece 53.

The foldable joint structure as described above, characterized in that: the transmission component 6 comprises a transmission block 61 arranged between the spline 52 and the third joint seat 33, a plurality of projections 62 with inclined planes are arranged on the transmission block 61 along the circumferential direction, and a plurality of slopes 63 which are matched with the projections 62 and can be matched with the projections 62 to push the transmission block 61 to move transversely when the third joint seat 33 rotates are arranged on the third joint seat 33.

The foldable joint structure as described above, characterized in that: the second joint seat 22 is provided with a plurality of yielding holes 22a, and the protrusion 62 passes through the yielding holes 22a to be abutted and matched with the slope 63.

A child's vehicle, characterized in that: the foldable joint structure comprises a foldable joint structure, wherein the lower end of a first supporting rod 1 is connected with a front wheel 1a, the lower end of a second supporting rod 2 is connected with a rear wheel 2a, a protruding seat 2b is arranged on the second supporting rod 2, a rear supporting rod 91 is rotatably connected onto the protruding seat 2b, the middle of the rear supporting rod 91 is rotatably connected with a linkage rod 92, the linkage rod 92 is slidably connected with a third supporting rod 3, the upper end of the rear supporting rod 91 is connected with a hand push rod 93, the rear supporting rod 91 is further connected with an extension rod 94 extending forwards, and a transmission rod 95 hinged with the extension rod 94 and the first supporting rod 1 is arranged between the extension rod 94 and the first supporting rod 1.

Compared with the prior art, the utility model discloses there is following advantage:

1. the utility model discloses a preceding handrail is connected to the joint seat of second through the handrail seat on, when the relative joint seat of second of third joint seat rotates and folds up, the third joint seat passes through the locking mechanical system unblock between transmission part drive second joint seat and the handrail seat for third branch just has realized the unblock of preceding handrail when relative second branch rotates, operates convenient and fast very. By adopting the baby carriage with the structure, the third supporting rod rotates the folding process relative to the second supporting rod to unlock the locking mechanism, so that the front handrail can be automatically rotated and folded after being unlocked, the front handrail does not need to be unlocked independently, the whole folding action is finished at one go, and the operation is very convenient. When the perambulator was in fold condition, preceding handrail was in the free state of unblock, and the user need remove fold condition's perambulator, can rotate preceding handrail and mention the perambulator through preceding handrail, convenient to carry. When the baby carriage needs to be unfolded, the front handrail can be pushed by hands to move to the unfolding position and then be locked.

2. The utility model discloses a be provided with the spring that extends along the circumferencial direction between handrail seat and the third joint seat, when third branch second branch relatively rotates and folds up, locking mechanical system unblock, preceding handrail is automatic to be rotated and is folded up and compression spring. And when needs expand collapsible joint structure, the third joint seat rotates the expansion relatively the second joint seat, at the expansion in-process, the third joint seat promotes the handrail seat through the spring of compression and rotates and reset, when rotating a certain position, spring elasticity returns natural length and applys certain thrust to preceding handrail for preceding handrail gets back to the expansion position, so the expansion process of preceding handrail no longer need be with manual operation, realize automatic expansion, make the user operate the child's bike more convenient and fast.

3. The utility model discloses collapsible joint structure and child's bike simple structure, folding or expansion convenient operation are fit for popularizing and applying.

[ description of the drawings ]

FIG. 1 is a perspective view of the foldable joint structure of the present invention;

fig. 2 is one of exploded views of the foldable joint structure of the present invention;

fig. 3 is a second exploded view of the foldable joint structure of the present invention;

fig. 4 is a third exploded view of the foldable joint structure of the present invention;

fig. 5 is a perspective view of the components of the foldable joint structure of the present invention;

FIG. 6 is a side view of the child's vehicle of the present invention in an expanded state;

FIG. 7 is a perspective view of the child's vehicle of the present invention in an expanded state;

FIG. 8 is a side view of the child's vehicle during folding;

fig. 9 is a schematic view of the folding state of the child cart.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 to 9, a foldable joint structure includes a first bar 1, a second bar 2 and a third bar 3, the first supporting rod 1 is provided with a first joint seat 11, the second supporting rod 2 is provided with a second joint seat 22 which can rotate relative to the first joint seat 11, the third supporting rod 3 is provided with a third joint seat 33 which can rotate relative to the second joint seat 22, the second joint seat 22 is also connected with a handrail seat 44 which can rotate relative to the second joint seat, the handrail seat 44 is connected with a front handrail 4, a locking mechanism 5 for locking the second joint seat 22 and the armrest seat 44 is arranged between the two, a transmission component 6 which can drive the locking mechanism 5 to unlock and enable the front handrail 4 to rotate and fold when the third joint seat 33 rotates and folds relative to the second joint seat 22 is arranged between the third joint seat 33 and the locking mechanism 5. The front armrest 4 is connected to the second joint seat 22 through the armrest seat 44, and when the third joint seat 33 rotates and folds relative to the second joint seat 22, the third joint seat 33 drives the locking mechanism 5 between the second joint seat 22 and the armrest seat 44 to unlock through the transmission component 6, so that the third support rod 33 rotates relative to the second support rod 22, and the unlocking of the front armrest 4 is realized, and the operation is very convenient and fast. By adopting the child bicycle with the foldable joint structure, the third supporting rod 33 unlocks the locking mechanism 5 in the process of rotating and folding relative to the second supporting rod 22, so that the front handrail 4 can be automatically rotated and folded after being unlocked, the front handrail 4 does not need to be unlocked independently, the whole folding action is finished at one go, and the operation is very convenient. When the perambulator was in fold condition, preceding handrail 4 was in the free state of unblock, and the user need remove fold condition's perambulator, can rotate preceding handrail 4 and lift up the perambulator through preceding handrail 4, convenient to carry. When the baby carriage needs to be unfolded, the third supporting rod 3, the second supporting rod 2 and the first supporting rod 1 are oppositely unfolded, and then the front handrail 4 is pushed by hand to move the front handrail 4 to the unfolding position and then is locked.

As shown in fig. 1, the first joint seat 11, the second joint seat 22, the third joint seat 33 and the armrest seat 44 are rotatably connected around the same axis, so that the whole structure is simple and compact, and the folding is flexible.

As shown in fig. 2 to 5, the third joint seat 33 is provided with a protruding portion 7, the armrest seat 44 is provided with an abutting portion 44a, a spring 8 extending along the circumferential direction is provided between the abutting portion 44a and the protruding portion 7, when the third joint seat 33 rotates and folds relative to the second joint seat 22 to drive the locking mechanism 5 to unlock, the front armrest 4 rotates and folds relative to the second joint seat 22 to make the spring 8 in a compressed state, and when the third joint seat 33 rotates and unfolds relative to the second joint seat 22, the third joint seat 33 pushes the front armrest 4 to rotate and return through the spring 8. A spring 8 extending along the circumferential direction is disposed between the armrest seat 44 and the third joint seat 33, and when the third support rod 33 rotates and folds relative to the second support rod 22, the locking mechanism 5 is unlocked, and the front armrest 4 automatically rotates and folds due to its own gravity or the folding inertia of the joint structure to compress the spring 8. And when the foldable joint structure needs to be unfolded, the third joint seat 33 rotates and unfolds relative to the second joint seat 22, in the unfolding process, the third joint seat 33 pushes the armrest seat 44 to rotate and reset through the compressed spring 8, when the third joint seat rotates to a certain position, the spring 8 elastically returns to the natural length to apply certain thrust to the front armrest 4, so that the front armrest 4 automatically returns to the unfolding position, the unfolding process of the front armrest 4 does not need to be operated by hands any more, automatic unfolding is realized, and the user can operate the child vehicle more conveniently and quickly.

As shown in fig. 2 to 5, the first joint seat 11 and the second joint seat 22 are disposed between the armrest seat 44 and the third joint seat 33, the protrusion 7 includes a cross bar 71 disposed on the third joint seat 33 and transversely passing through the second joint seat 22, a protrusion block 72 is disposed on the cross bar 71, and one end of the spring 8 abuts against the protrusion block 72, so that the entire foldable joint is simple and compact.

As shown in fig. 2 and 3, the first joint seat 11 has a ring-shaped structure, and a portion of the armrest seat 44 is inserted into the first joint seat 11.

As shown in fig. 2 and 3, the armrest seat 44 is provided with a locking block 44b, the front armrest 4 is provided with a locking groove 4a locked with the locking block 44b, and the front armrest 4 is detachably connected with the locking block 44b on the armrest seat 44 through the locking groove 4 a. Therefore, the front armrest 4 can be detached from the armrest seat 44, which is convenient for the user to take out the child from the child car, and is convenient for the package of the child car product when the child car product leaves the factory.

As shown in fig. 2 to 5, the locking mechanism 5 includes spline grooves 51 provided on the armrest seat 44 and the second joint seat 22 along the circumferential direction, a space enclosed by the armrest seat 44 and the second joint seat 22 is provided with splines 52 capable of engaging with the spline grooves 51 on the armrest seat 44 and the second joint seat 22 at the same time, the transmission member 6 is provided between the splines 52 and the third joint seat 33, and when the third joint seat 33 rotates and folds relative to the second joint seat 22, the transmission member 6 pushes the splines 52 to disengage from the spline grooves 51 on the second joint seat 22, and an elastic return member 53 is further provided between the armrest seat 44 and the splines 52. When the third joint seat 33 rotates and folds relative to the second joint seat 22, the transmission member 6 pushes the spline 52 to disengage from the spline groove 51 on the second joint seat 22, and at this time, the armrest seat 44 can rotate relative to the second joint seat 22, and at this time, the front armrest 4 can rotate and fold.

As shown in fig. 2 to 5, the transmission member 6 includes a transmission block 61 disposed between the spline 52 and the third joint seat 33, the transmission block 61 is provided with a plurality of protrusions 62 having inclined planes along a circumferential direction, and the third joint seat 33 is provided with a plurality of ramps 63 engaged with the protrusions 62 and capable of engaging with the protrusions 62 to push the transmission block 61 to move laterally when the third joint seat 33 rotates. When the third joint seat 33 rotates and folds relative to the second joint seat 22, the slope 63 on the third joint seat 33 pushes the protrusion 62 with the inclined plane, so that the transmission block 61 moves transversely, the transmission block 61 pushes the spline 52 to separate from the spline groove 51 on the second joint seat 22, and the unlocking of the locking mechanism 5 is realized, so that the linked unlocking of the front armrest 4 is realized as long as the third support rod 3 rotates and folds relative to the second support rod 2, and the operation is very convenient.

As shown in fig. 2 to 5, the second joint seat 22 is provided with a plurality of relief holes 22a, and the protrusion 62 passes through the relief holes 22a and is abutted against and matched with the slope 63, so that the structure is simple and compact.

As shown in fig. 1 to 9, a child vehicle comprises the foldable joint structure, the lower end of the first supporting rod 1 is connected with a front wheel 1a, the lower end of the second supporting rod 2 is connected with a rear wheel 2a, the second supporting rod 2 is provided with a protruding seat 2b, the protruding seat 2b is connected with a rear supporting rod 91 in a rotating manner, the middle of the rear supporting rod 91 is connected with a linkage rod 92 in a rotating manner, the linkage rod 92 is connected with the third supporting rod 3 in a sliding manner, the upper end of the rear supporting rod 91 is connected with a hand push rod 93, the rear supporting rod 91 is further connected with an extension rod 94 extending forwards, and a transmission rod 95 hinged with the extension rod 94 and the first supporting rod 1 is arranged between the extension rod 94 and the first supporting rod 1. When the baby carriage is folded, the rear supporting rod 91 is rotated backwards, the upper end of the rear supporting rod 91 is close to the lower end of the second supporting rod 2, in the process, the linkage rod 92 slides relative to the third supporting rod 3, the third supporting rod 3 is also rotated and folded relative to the second supporting rod 2 through the linkage rod 92, the third joint seat 33 drives the locking mechanism 5 to unlock through the transmission component 6 in the process, the front handrail 4 automatically rotates and is folded due to self gravity or the inertia of folding of the baby carriage, in the process, one end of the extension rod 94 connected with the transmission rod 95 is upwards tilted, so that the first supporting rod 1 rotates and draws close to the second supporting rod 2 through the transmission rod 95, the folding of the whole baby carriage is realized, the front handrail 4 does not need to be independently unlocked by hands when the baby carriage is folded, and the front handrail 4 is more convenient to fold. When the baby carriage needs to be unfolded, the third supporting rod 3 rotates and unfolds relative to the second supporting rod 2, and the third joint seat 33 pushes the front handrail 4 to rotate and reset to an unfolded position through the spring 8, so that the front handrail can be automatically unfolded, and the operation is convenient and fast.

Claims

1. A foldable joint structure characterized by: comprises a first supporting rod (1), a second supporting rod (2) and a third supporting rod (3), a first joint seat (11) is arranged on the first supporting rod (1), a second joint seat (22) which can rotate relative to the first joint seat (11) is arranged on the second supporting rod (2), a third joint seat (33) which can rotate relative to the second joint seat (22) is arranged on the third supporting rod (3), the second joint seat (22) is also connected with a handrail seat (44) which can rotate relative to the second joint seat, the armrest seat (44) is connected with a front armrest (4), a locking mechanism (5) for locking the second joint seat (22) and the armrest seat (44) is arranged between the two, a transmission component (6) which can drive the locking mechanism (5) to unlock and enable the front handrail (4) to rotate and fold when the third joint seat (33) rotates and folds relative to the second joint seat (22) is arranged between the third joint seat (33) and the locking mechanism (5).

2. The foldable joint structure of claim 1, wherein: the first joint seat (11), the second joint seat (22), the third joint seat (33) and the armrest seat (44) are rotatably connected around the same axis.

3. The foldable joint structure of claim 1, wherein: the handrail locking device is characterized in that a protruding portion (7) is arranged on the third joint seat (33), a leaning portion (44a) is arranged on the handrail seat (44), a spring (8) extending along the circumferential direction is arranged between the leaning portion (44a) and the protruding portion (7), when the third joint seat (33) rotates and folds relative to the second joint seat (22) to drive the locking mechanism (5) to unlock, the front handrail (4) rotates and folds relative to the second joint seat (22) to enable the spring (8) to be in a compression state, and when the third joint seat (33) rotates and unfolds relative to the second joint seat (22), the third joint seat (33) pushes the front handrail (4) to rotate and reset through the spring (8).

4. The foldable joint structure of claim 3, wherein: the first joint seat (11) and the second joint seat (22) are arranged between the armrest seat (44) and the third joint seat (33), the protruding portion (7) comprises a cross rod (71) which is arranged on the third joint seat (33) and transversely penetrates through the second joint seat (22), a protruding block (72) is arranged on the cross rod (71), and one end of the spring (8) abuts against the protruding block (72).

5. The foldable joint structure of claim 4, wherein: the first joint seat (11) is of an annular structure, and one part of the armrest seat (44) penetrates through the first joint seat (11).

6. The foldable joint structure of claim 1, wherein: handrail seat (44) on be equipped with joint piece (44b), preceding handrail (4) on be equipped with joint groove (4a) of joint piece (44b) block, preceding handrail (4) pass through joint groove (4a) and can dismantle with joint piece (44b) on the handrail seat (44) and be connected.

7. The foldable joint structure of claim 1, wherein: locking mechanical system (5) including establishing spline groove (51) on handrail seat (44) and second joint seat (22) along the circumferencial direction, handrail seat (44) and second joint seat (22) enclose the space in be equipped with spline (52) that can block simultaneously with spline groove (51) on handrail seat (44) and second joint seat (22), drive disk assembly (6) establish between spline (52) and third joint seat (33) and rotate when folding up at third joint seat (33) relative second joint seat (22) spline (52) and spline groove (51) on second joint seat (22) break away from, handrail seat (44) and spline (52) between still be equipped with elastic reset piece (53).

8. The foldable joint structure of claim 7, wherein: the transmission part (6) comprises a transmission block (61) arranged between a spline (52) and a third joint seat (33), a plurality of protrusions (62) with inclined planes are arranged on the transmission block (61) along the circumferential direction, and a plurality of slopes (63) which are matched with the protrusions (62) and can be matched with the protrusions (62) to push the transmission block (61) to move transversely when the third joint seat (33) rotates are arranged on the third joint seat (33).

9. The foldable joint structure of claim 8, wherein: the second joint seat (22) is provided with a plurality of yielding holes (22a), and the bulge (62) penetrates through the yielding holes (22a) to be abutted against and matched with the slope (63).

10. A child's vehicle, characterized in that: the foldable joint structure comprises the foldable joint structure as claimed in any one of claims 1 to 8, wherein a front wheel (1a) is connected to the lower end of a first supporting rod (1), a rear wheel (2a) is connected to the lower end of a second supporting rod (2), a protruding seat (2b) is arranged on the second supporting rod (2), a rear supporting rod (91) is connected to the protruding seat (2b) in a rotating mode, a linkage rod (92) is connected to the middle of the rear supporting rod (91) in a rotating mode, the linkage rod (92) is connected with a third supporting rod (3) in a sliding mode, a hand push rod (93) is connected to the upper end of the rear supporting rod (91), an extending rod (94) extending forwards is further connected to the rear supporting rod (91), and a transmission rod (95) hinged to the extension rod (94) and the first supporting rod (1) is arranged between the extension rod (94) and the first supporting rod (1).