CN211391419U - Joint assembly and child stroller - Google Patents
Joint assembly and child stroller Download PDFInfo
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- CN211391419U CN211391419U CN201921889549.5U CN201921889549U CN211391419U CN 211391419 U CN211391419 U CN 211391419U CN 201921889549 U CN201921889549 U CN 201921889549U CN 211391419 U CN211391419 U CN 211391419U
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- joint seat
- rotating shaft
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Abstract
The utility model discloses a joint component and a children cart, the joint component comprises a first joint component, a second joint component, a first locking mechanism, a second locking mechanism and an unlocking mechanism, the first joint component comprises a first joint seat and a second joint seat which are rotationally connected through a rotating shaft, the unlocking mechanism comprises a rotating block which is fixedly arranged on the first joint seat and a sliding block which is arranged on the second joint seat in a sliding way and is connected with the second locking mechanism, the sliding block is provided with an abutting part which is matched with the rotating block, when the first locking mechanism and the second locking mechanism are locked, a first distance is arranged between the abutting part and the rotating shaft, when the second joint seat rotates relative to the first joint seat, a second distance is arranged between the abutting part and the rotating shaft, the first distance is different from the second distance, in the process from the first distance to the second distance between the abutting part and the rotating shaft, the sliding block slides relative to the second joint seat, unlocking the second locking mechanism. The joint assembly enables the second locking mechanism to be unlocked when the component of the first joint assembly rotates, and operation is convenient.
Description
Technical Field
The utility model relates to a children's articles for use technical field, concretely relates to joint subassembly and children's shallow.
Background
The children's shallow carries for the adult to carry less children and carries out outdoor activities and provides very big convenience, when children's shallow member is more, can realize the rotation between many members through a plurality of revolute joint and connect, and when children's shallow was folding, need make behind a plurality of revolute joint's the locking mechanical system unblock children's shallow just can fold. In the prior art, a plurality of locking mechanisms on part of child carts need to be unlocked by manual operation one by one, so that the unlocking operation is inconvenient. Some children's carts are also provided with unlocking linkage devices, but the structure is complex, and the children's carts are prone to failure, so that the folding operation of the children's carts is influenced.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome prior art not enough, provide an improved joint subassembly.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a joint assembly comprises a first joint assembly, a second joint assembly, a first locking mechanism used for locking the position of the first joint assembly, a second locking mechanism used for locking the position of the second joint assembly and an unlocking mechanism used for unlocking the second locking mechanism, wherein the first joint assembly comprises a first joint seat and a second joint seat which are rotationally connected through a rotating shaft, the unlocking mechanism comprises a rotating block fixedly arranged on the first joint seat and a sliding block arranged on the second joint seat in a sliding mode, the sliding block is connected with the second locking mechanism, an abutting portion matched with the rotating block is arranged on the sliding block, when the first locking mechanism and the second locking mechanism are both in a locking state, the abutting portion is matched with the rotating block, and a first distance is reserved between the abutting portion and the rotating shaft, when the first locking mechanism is unlocked and the second joint seat rotates relative to the first joint seat, the abutting part is matched with the rotating block, a second distance is reserved between the abutting part and the rotating shaft, the first distance is different from the second distance, and in the process that the sliding block moves from the first distance reserved between the abutting part and the rotating shaft to the second distance reserved between the abutting part and the rotating shaft, the sliding block slides relative to the second joint seat to drive the second locking mechanism to be unlocked.
Preferably, the rotating block is provided with a first matching portion and a second matching portion, which are matched with the abutting portion, respectively, the first matching portion and the second matching portion are sequentially connected, when the first locking mechanism and the second locking mechanism are both in a locking state, the first matching portion is matched with the abutting portion, when the second locking mechanism is unlocked, the second joint seat rotates relative to the first joint seat, the second matching portion is matched with the abutting portion, and the distance from the first matching portion to the rotating shaft is different from the distance from the second matching portion to the rotating shaft.
Further, the distance from the first matching part to the rotating shaft is smaller than the distance from the second matching part to the rotating shaft.
Further, a cylinder is arranged on one end of the sliding block, and the abutting portion is an outer cylindrical surface of the cylinder.
Furthermore, the rotating block is provided with an outer contour surface, the outer contour surface comprises a circumferential surface and a curved surface which is sequentially connected with the circumferential surface and is concave towards the inside of the rotating block, the center of the circumferential surface is positioned on the rotating shaft, the first matching part is the curved surface, and the second matching part is the circumferential surface.
Preferably, a cylinder is arranged on one end of the slider, the abutting portion is an outer cylindrical surface of the cylinder, the rotating block is provided with an outer contour surface, and the outer cylindrical surface and the outer contour surface are matched through line contact.
Preferably, the unlocking mechanism further comprises a traction cable, one end of the traction cable is fixedly arranged on the sliding block, and the other end of the traction cable is fixedly connected to the second locking mechanism.
Preferably, the second joint assembly includes a third joint seat and a fourth joint seat which are rotatably connected to each other, and the third joint seat and the second joint seat are respectively and fixedly connected to two end portions of a rod member.
The utility model also provides a children's shallow, children's shallow has as above-mentioned arbitrary joint subassembly.
Preferably, the children's shallow includes the shallow frame, the shallow frame includes fore-stock, after-poppet and push rod subassembly, push rod subassembly includes last push rod and push rod down, first joint subassembly sets up the upper portion of fore-stock the upper portion of after-poppet with be used for between the lower part of push rod down the fore-stock the after-poppet with rotation between the push rod subassembly is connected, second joint subassembly sets up the lower part of last push rod with be used for between the upper portion of push rod down the last push rod with rotation between the push rod is connected.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a joint subassembly simple structure, through the slider with change mutually supporting of piece, when the relative first joint seat of first locking mechanical system unblock second joint seat rotates, can make the relative second joint seat of slider slide to order about the unblock of second locking mechanical system, like this, need not the independent operation and can make the unblock also of second locking mechanical system, unblock convenient operation, convenient to use. Moreover, the structure can realize that the first joint seat and the second joint seat start to unlock the second locking mechanism when just starting to rotate, namely the first joint seat and the second joint seat relatively rotate for a small angle to unlock the second locking mechanism, and the second locking mechanism does not need to be continuously unlocked in the later period of the relative rotation between the first joint seat and the second joint seat, so that the relative rotation between the first joint seat and the second joint seat is more labor-saving.
Drawings
Fig. 1 is a side view of the stroller of the present invention in an unfolded state;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a side view of the stroller of the present invention during folding (with the pull cord removed);
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
fig. 5 is a side view of the stroller of the present invention in a folded state (with the pull cable removed);
fig. 6 is a partial enlarged view of a portion a of fig. 5.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 6, the joint assembly of the present invention includes a first joint assembly, a second joint assembly, a first locking mechanism for locking the relative position of the first joint assembly, a second locking mechanism for locking the relative position of the second joint assembly, and an unlocking mechanism for unlocking the second locking mechanism.
The first joint assembly comprises a first joint seat 11 and a second joint seat 12, and the first joint seat 11 and the second joint seat 12 are rotatably connected through a rotating shaft 13. The first locking mechanism is used for locking the relative positions of the first joint base 11 and the second joint base 12. After the first locking mechanism is unlocked, the first joint seat 11 and the second joint seat 12 can rotate relatively.
The second joint component comprises a third joint seat 21 and a fourth joint seat 22, and the third joint seat 21 and the fourth joint seat 22 are rotatably connected. The second locking mechanism is used to lock the relative positions of the third joint seat 21 and the fourth joint seat 22. After the second locking mechanism is unlocked, the third joint seat 21 and the fourth joint seat 22 can rotate relatively.
In this embodiment, the second joint seat 12 and the third joint seat 21 are respectively fixedly connected to two end portions of the same rod member, so that the first joint component and the second joint component are connected. Of course, the first joint component and the second joint component may also be two joint components arranged independently, and there is no component connected in common between the two.
The unlocking mechanism comprises a rotating block 31 and a sliding block 32, the rotating block 31 is fixedly arranged on the first joint seat 11, the sliding block 32 can be arranged on the second joint seat 12 in a sliding mode, the sliding block 32 is connected with the second locking mechanism, the sliding block 32 is provided with an abutting part 321a, and the abutting part 321a and the rotating block 31 are always kept in a matched state. When the first locking mechanism and the second locking mechanism are both in a locked state, a first distance is formed between the abutting portion 321a and the rotating shaft 13, when the first locking mechanism is unlocked, and the second joint seat 12 rotates around the rotating shaft 13 relative to the first joint seat 11, a second distance is formed between the abutting portion 321a and the rotating shaft 13, the values of the first distance and the second distance are different, and when the slider 32 moves from the first distance formed between the abutting portion 321a and the rotating shaft 13 to the second distance formed between the abutting portion 321a and the rotating shaft 13, the slider 32 further slides relative to the second joint seat 12, so that the second locking mechanism is driven to be unlocked.
In this embodiment, the unlocking mechanism further comprises a traction cable 33, and the slider 32 is connected with the second locking mechanism through the traction cable 33. Specifically, one end of the pulling cable 33 is fixedly disposed on the slider 32, and the other end of the pulling cable 33 is fixedly connected to the second locking mechanism. When the first locking mechanism and the second locking mechanism are both in a locked state, the pulling cable 33 is in a tensioned state, when the first locking mechanism is unlocked, the second joint seat 12 rotates relative to the first joint seat 11, the sliding block 32 is driven to rotate around the rotating shaft 13 relative to the first joint seat 11, in the rotating process of the sliding block 32, due to the change of the distance between the abutting portion 321a and the rotating shaft 13, the sliding block 32 further slides relative to the second joint seat 12, when the sliding block 32 slides, the second locking mechanism is pulled through the pulling cable 33, so that the second locking mechanism is unlocked, and after the second locking mechanism is unlocked, the third joint seat 21 and the fourth joint seat 22 can rotate relative to each other.
In a specific embodiment, the rotating block 31 is respectively provided with a first matching portion 311 and a second matching portion 312 which are matched with the abutting portion 321a, the first matching portion 311 and the second matching portion 312 are sequentially connected, when the first locking mechanism and the second locking mechanism are both in a locking state, the first matching portion 311 is matched with the abutting portion 321a, when the second locking mechanism is unlocked, and the second joint seat 12 rotates relative to the first joint seat 11, the second matching portion 312 is matched with the abutting portion 321a, the distance from the first matching portion 311 to the rotating shaft 13 is different from the distance from the second matching portion 312 to the rotating shaft 13, so that the values of the first distance and the second distance are different.
In this embodiment, the distance from the first matching portion 311 to the rotating shaft 13 is smaller than the distance from the second matching portion 312 to the rotating shaft 13.
In this embodiment, a cylinder 321 is disposed on one end of the slider 32, the abutting portion 321a is an outer cylindrical surface of the cylinder 321, the rotating block 31 has an outer contour surface, and the outer cylindrical surface is matched with the outer contour surface.
The outer contour surface includes a circumferential surface and a curved surface which is connected with the circumferential surface in sequence and is concave towards the inside of the rotating block 31, the center of the circumferential surface is positioned on the rotating shaft 13, the curved surface is the first matching part 311, and the circumferential surface forms the second matching part 312. When the first locking mechanism and the second locking mechanism are both in a locking state, an outer cylindrical surface on the sliding block 32 is abutted against the curved surface, when the first locking mechanism is unlocked, and the second joint seat 12 rotates relative to the first joint seat 11, the sliding block 32 is driven to rotate relative to the first joint seat 11 around the rotating shaft 13, so that the outer cylindrical surface on the sliding block 32 is abutted against the circumferential surface, in the process, because the distances between the curved surface and the circumferential surface and the rotating shaft 13 are different, the sliding block 32 slides relative to the second joint seat 12, when the second joint seat 12 continues to rotate relative to the first joint seat 11, the sliding block 32 synchronously rotates around the rotating shaft 13, the outer cylindrical surface of the sliding block 32 is always abutted against the circumferential surface of the rotating block 31, and because the distances between each point on the circumferential surface and the rotating shaft 13 are the same, the sliding block 32 does not slide relative to the second joint seat 12.
The utility model discloses a joint subassembly can be applied to children's shallow, as shown in fig. 1~ 6, children's shallow includes the shallow frame, the shallow frame includes fore-stock 101, after-poppet 102 and push rod subassembly, push rod subassembly includes push-up rod 103 and push rod 104 down, first joint subassembly sets up the upper portion at fore-stock 101, between the upper portion of after-poppet 102 and the lower part of push rod 104 down, be used for fore-stock 101, the rotation between after-poppet 102 and the push rod subassembly is connected, the second joint subassembly sets up and is used for the rotation between push-up rod 103 and the push rod 104 to be connected between the lower part of push rod 103 and the upper portion of push rod 104 down.
Specifically, the lower portion of the upper push rod 103 is fixedly connected to the fourth joint seat 22, the upper portion of the lower push rod 104 is fixedly connected to the third joint seat 21, the upper end portion of the front bracket 101 is fixedly connected to the first joint seat 11, the lower portion of the lower push rod 104 is fixedly connected to the second joint seat 12, the first joint assembly further includes a fifth joint seat 14, the fifth joint seat 14 is rotatably connected to any one of the first joint seat 11 and the second joint seat 12, and the upper portion of the rear bracket 102 is fixedly connected to the fifth joint seat 14.
The stroller frame further comprises a seat rod 105, the first joint assembly further comprises a sixth joint seat 15, the sixth joint seat 15 is rotatably connected with any one of the three components of the first joint seat 11, the second joint seat 12 and the fifth joint seat 14, in this embodiment, the four components of the first joint seat 11, the second joint seat 12, the fifth joint seat 14 and the sixth joint seat 15 are rotatably connected through the same shaft of the rotating shaft 13, and the rear part of the seat rod 105 is fixedly connected with the fifth joint seat 14.
When the stroller is in the unfolded state, the first locking mechanism and the second locking mechanism are both in the locked state, the abutting portion 321a on the slider 32 abuts against the curved position on the rotating block 31, and the traction cable 33 is in the tensioned state, as shown in fig. 1 and 2.
When the stroller is folded, the first locking mechanism is unlocked first, the push rod assembly is turned forwards and downwards, when the push rod assembly rotates around the rotating shaft 13, the sliding block 32 is driven to synchronously rotate around the rotating shaft 13, the abutting part 321a on the sliding block 32 moves from abutting against the position of the curved surface on the rotating block 31 to abutting against the circumferential surface on the rotating block 31, in the process, the distance from the curved surface to the rotating shaft 13 is smaller than the distance from the circumferential surface to the rotating shaft 13, so that the sliding block 32 slides relative to the second joint seat 12 in the direction away from the second locking mechanism, when the sliding block 32 slides, the traction cable 33 is pulled, and the traction cable 33 pulls the second locking mechanism, so that the second locking mechanism is unlocked. When the push rod assembly drives the sliding block 32 to rotate around the rotating shaft 13 to approach the front bracket 101, the abutting portion 321a on the sliding block 32 always abuts against the circumferential surface on the rotating block 31, and since the distances from each point on the circumferential surface to the rotating shaft 13 are the same, the sliding block 32 does not slide relative to the second joint base 12, as shown in fig. 3 and 4. When the push rod assembly is rotated forward and downward into position, the upper push rod 103 can be rotated relative to the lower push rod 104 to close the lower push rod 104, and finally folded as shown in fig. 5 and 6. In the folding process of the baby stroller, after the first locking mechanism is unlocked, the push rod assembly rotates forwards and downwards by a smaller angle, the second locking mechanism is unlocked, and when the push rod assembly continues to rotate and fold, the second locking mechanism is always in an unlocked state, so that in the process of closing the push rod assembly and the front support 101 in the later period, the acting force of the second locking mechanism is not required to be overcome, and the push rod assembly is rotated and folded more labor-saving.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A joint assembly comprising a first joint assembly, a second joint assembly, a first locking mechanism for locking a position of the first joint assembly, a second locking mechanism for locking a position of the second joint assembly, and an unlocking mechanism for unlocking the second locking mechanism, the first joint assembly comprising a first joint seat and a second joint seat rotatably connected by a pivot axis, characterized in that: the unlocking mechanism comprises a rotating block fixedly arranged on the first joint seat and a sliding block slidably arranged on the second joint seat, the sliding block is connected with the second locking mechanism, the sliding block is provided with an abutting part matched with the rotating block, when the first locking mechanism and the second locking mechanism are both in a locking state, the abutting part is matched with the rotating block, a first distance is formed between the abutting part and the rotating shaft, when the first locking mechanism is unlocked and the second joint seat rotates relative to the first joint seat, the abutting part is matched with the rotating block, a second distance is formed between the abutting part and the rotating shaft, the first distance and the second distance are different, and the sliding block moves from the first distance formed between the abutting part and the rotating shaft to the second distance formed between the abutting part and the rotating shaft, the sliding block slides relative to the second joint seat to drive the second locking mechanism to unlock.
2. The joint assembly of claim 1, wherein: the rotating block is respectively provided with a first matching part and a second matching part which are matched with the abutting part, the first matching part and the second matching part are sequentially connected, when the first locking mechanism and the second locking mechanism are both in a locking state, the first matching part is matched with the abutting part, when the second locking mechanism is unlocked, the second joint seat is opposite to the first joint seat, the second matching part is matched with the abutting part, and the distance from the first matching part to the rotating shaft is different from the distance from the second matching part to the rotating shaft.
3. The joint assembly of claim 2, wherein: the distance between the first matching part and the rotating shaft is smaller than that between the second matching part and the rotating shaft.
4. The joint assembly of claim 2, wherein: a cylinder is arranged at one end of the sliding block, and the abutting portion is an outer cylindrical surface of the cylinder.
5. The joint assembly of claim 2, wherein: the rotating block is provided with an outer contour surface, the outer contour surface comprises a circumferential surface and a curved surface which is sequentially connected with the circumferential surface and is concave towards the inside of the rotating block, the center of the circumferential surface is positioned on the rotating shaft, the first matching part is the curved surface, and the second matching part is the circumferential surface.
6. The joint assembly of claim 1, wherein: a cylinder is arranged on one end of the sliding block, the abutting portion is the outer cylindrical surface of the cylinder, the rotating block is provided with an outer contour surface, and the outer cylindrical surface is matched with the outer contour surface through line contact.
7. The joint assembly of claim 1, wherein: the unlocking mechanism further comprises a traction cable, one end of the traction cable is fixedly arranged on the sliding block, and the other end of the traction cable is fixedly connected to the second locking mechanism.
8. The joint assembly of claim 1, wherein: the second joint assembly comprises a third joint seat and a fourth joint seat which are rotatably connected with each other, and the third joint seat and the second joint seat are fixedly connected to two end parts of a rod piece respectively.
9. A stroller, characterized in that: a joint assembly as claimed in any one of claims 1 to 8.
10. The stroller of claim 9, wherein: the children's shallow includes the shallow frame, the shallow frame includes fore-stock, after-poppet and push rod subassembly, the push rod subassembly includes push up rod and lower push rod, first joint subassembly sets up the upper portion of fore-stock the upper portion of after-poppet with be used for between the lower part of lower push rod the fore-stock the after-poppet with rotation between the push rod subassembly is connected, the second joint subassembly sets up the lower part of push up rod with be used for between the upper portion of lower push rod the push up rod with rotation between the lower push rod is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921889549.5U CN211391419U (en) | 2019-11-05 | 2019-11-05 | Joint assembly and child stroller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921889549.5U CN211391419U (en) | 2019-11-05 | 2019-11-05 | Joint assembly and child stroller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211391419U true CN211391419U (en) | 2020-09-01 |
Family
ID=72213851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921889549.5U Active CN211391419U (en) | 2019-11-05 | 2019-11-05 | Joint assembly and child stroller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211391419U (en) |
-
2019
- 2019-11-05 CN CN201921889549.5U patent/CN211391419U/en active Active
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