CN211167047U - Rotating joint and baby stroller - Google Patents
Rotating joint and baby stroller Download PDFInfo
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- CN211167047U CN211167047U CN201921806447.2U CN201921806447U CN211167047U CN 211167047 U CN211167047 U CN 211167047U CN 201921806447 U CN201921806447 U CN 201921806447U CN 211167047 U CN211167047 U CN 211167047U
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Abstract
The utility model discloses a rotary joint and a children cart, wherein the rotary joint is used for the rotary connection among a plurality of rod pieces, the rotary joint comprises a base and a joint seat, one rod piece in the plurality of rod pieces is a base rod, the other rod pieces are connecting rods, the base is connected with the base rod, each connecting rod is connected with a joint seat, the base is coaxially and rotatably connected with the joint seats, the rotary joint further comprises a locking mechanism for locking the positions of the rod pieces, the locking mechanism comprises a locking piece which is slidably arranged on the base, a locking groove which is arranged on each joint seat and a first sliding groove which is communicated with the locking groove, the locking groove and the first sliding groove are matched with the locking piece, when the locking mechanism is in a locking state, the locking piece is positioned in the locking groove, when the locking piece slides from the locking groove into the first sliding groove, the locking mechanism is unlocked, and the locking piece can slide along the length extending direction of the first sliding groove. The locking and unlocking operation of the rotary joint is very convenient, the structure is simple, the processing is convenient, and the production and the manufacturing are convenient.
Description
Technical Field
The utility model relates to a children's articles for use technical field, concretely relates to revolute joint and children's shallow.
Background
Revolute joints are used to connect and lock two or more components that are rotationally connected. The revolute joint generally comprises a base and a first joint seat which are rotatably connected, a locking mechanism for locking the relative positions of the base and the first joint seat, and an unlocking mechanism for actuating the locking mechanism to unlock. The locking mechanism typically includes a locking member. In the prior art, the locking element is generally in the form of a ratchet, and the base and the first joint seat are provided with tooth grooves which are matched with the ratchet, when the locking mechanism is in a locking state, the ratchet is respectively meshed with the tooth grooves on the two joint seats, and when the locking mechanism is unlocked, the ratchet is meshed with the tooth groove on the base 3 and is disengaged from the tooth groove on the other joint seat. The joint seat with the structure needs to be provided with a plurality of ratchets on the locking piece, tooth grooves matched with the ratchets are processed on the two joint seats, the processing technology is relatively complex and is not beneficial to production, and when the locking mechanism is unlocked, the locking piece needs to be driven to slide through the driving piece, so that the unlocking operation is inconvenient.
Disclosure of Invention
The utility model aims to solve the technical problem that the prior art is not enough to overcome, a modified revolute joint is provided.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a rotary joint is used for the rotary connection among a plurality of rod pieces, the rotary joint comprises a base and a joint seat, one rod piece in the plurality of rod pieces is a base rod, the other rod pieces are connecting rods, the base is connected with the base rod, each connecting rod is connected with one joint seat, the base is rotationally connected with the joint seats around the same rotating shaft, the rotary joint further comprises a locking mechanism used for locking the positions of the plurality of rod pieces, the locking mechanism comprises a locking piece which can be slidably arranged on the base, a locking groove which is arranged on each joint seat and a first sliding groove which is communicated with the locking groove, the locking groove and the first sliding groove are matched with the locking piece, when the locking mechanism is in a locking state, the locking piece is positioned in the locking groove, when the locking piece slides from the locking groove into the first sliding groove, the locking mechanism is unlocked, and the locking piece is located in the first sliding groove and can slide along the length extending direction of the first sliding groove.
Preferably, the locking mechanism further comprises a slider slidably provided on the base, and the locking member is fixedly provided on the slider.
Furthermore, the revolute joint further comprises an elastic piece for driving the locking mechanism to reset from the unlocking state to the locking state, and two end parts of the elastic piece are respectively abutted to the sliding block and the base.
Preferably, a second sliding groove is formed in the base, the second sliding groove extends along the sliding direction of the locking piece, the second sliding groove is matched with the locking piece, and the locking piece is arranged in the second sliding groove in a penetrating mode and can be arranged in a sliding mode along the length extending direction of the second sliding groove.
Preferably, the locking member is provided with a plurality of locking grooves on each joint seat, the locking grooves and the locking member are arranged in a one-to-one correspondence, each locking groove on each joint seat is communicated with the first sliding groove, when the locking mechanism is in a locked state, each locking member is located in the locking groove, and when the locking mechanism is unlocked, each locking member is disengaged from the locking groove and slides into the first sliding groove.
Preferably, the positions of the locking grooves on each joint seat correspond to one another, the first sliding grooves on each joint seat extend along the circumferential direction of the joint seat, and the diameters of the circumferences where the first sliding grooves on each joint seat are located are the same.
Preferably, the lengths of the first sliding grooves on the joint seats in the circumferential direction of rotation of the joint seats are the same, or the lengths of the first sliding grooves on the joint seats in the circumferential direction of rotation of the joint seats are different wholly or partially.
Preferably, one of the locking grooves on the joint seat communicates with one end of the first sliding groove.
The utility model also provides a children's shallow has as above-mentioned arbitrary rotation joint.
Preferably, children's shallow includes fore-stock, after-poppet and push rod subassembly, push rod subassembly includes the push down rod and can follow the length extending direction of push down rod sets up with sliding last push rod on the push down rod, the push down rod does the base pole, the push down rod with base fixed connection, the fore-stock with the after-poppet does the connecting rod, the fore-stock with on the after-poppet respectively fixedly connected with one the joint seat works as it is relative to go up the push down rod slides after setting for the position, go up the push rod with the locking piece cooperatees, it orders about to go up the push rod and continuously slides locking mechanical system unblock.
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 when the revolute joint is locked, as long as make the locking piece insert the locked groove in, and after the locking piece slides from the locked groove to first spout, revolute joint unblock promptly, can rotate relatively between base and each joint seat to drive each member and rotate relatively, this makes revolute joint's locking and unblock operation very convenient, should rotate joint simple structure moreover, and processing is convenient, the manufacturing of being convenient for.
Drawings
Fig. 1 is an exploded view of a rotary joint of the present invention;
fig. 2 is an exploded view of the base of the present invention;
fig. 3 is a schematic structural view of the locking member of the present invention in a free state on the base;
fig. 4 is a schematic structural view of the locking member of the present invention after being pressed on the base;
fig. 5 is a schematic structural view of the rotary joint of the present invention in the relative rotation process of each component after the locking mechanism is unlocked;
fig. 6 is a schematic structural view of the rotary joint of the present invention after each component relatively rotates to the limit position after the locking mechanism is unlocked;
fig. 7 is a schematic structural view of the stroller of the present invention in the unfolded state (the locking mechanism is in the locked state);
fig. 8 is a schematic structural view of the stroller of the present invention after the upper push rod slides downward and the lower push rod is closed (the locking mechanism is unlocked);
fig. 9 is a schematic structural view of the stroller of the present invention during the folding process;
fig. 10 is a schematic structural view of the stroller of the present invention in a folded state.
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. 1-6, the utility model discloses a revolute joint is used for the rotation between many members to connect, and revolute joint includes base 3 and joint seat, and a member in many members is the base rod, and all the other members are the connecting rod, and base 3 is connected with the base rod, all is connected with a joint seat on the every connecting rod, and base 3 and each joint seat are connected around same pivot rotation ground, and revolute joint still includes the locking mechanical system who is used for locking the relative position looks of many members.
Locking mechanical system includes locking piece 11, locked groove 21 and first spout 22, locking piece 11 can set up on base 3 with sliding, all be provided with locked groove 21 and first spout 22 on each joint seat, locked groove 21 is linked together with first spout 22, locked groove 21 and first spout 22 all cooperate with locking piece 11, the position one-to-one of locked groove 21 on each joint seat sets up, first spout 22 on each joint seat all extends along joint seat pivoted circumferencial direction, and the diameter of the circumference that first spout 22 on each joint seat is located is the same. When the locking mechanism is in the locked state, the locking piece 11 is positioned in the locking groove 21 on each joint seat; when the locking mechanism is in the unlocked state, the locking member 11 is located in the first sliding slot 22 on each joint seat. When the locking member 11 is pressed in the locked state of the locking mechanism, the locking member 11 can be made to slide relative to the base 3 until the locking member 11 slides out of the locking groove 21 and enters the first sliding groove 22, the locking mechanism is unlocked, the base 3 and the joint seats can relatively rotate, and during the rotation, the locking member 11 is located in the first sliding groove 22 on each joint seat and slides along the length extension direction of the first sliding groove 22.
Specifically, the base 3 is provided with a second sliding groove 31, the second sliding groove 31 extends along the sliding direction of the locking member 11, the second sliding groove 31 is matched with the locking member 11, and the locking member 11 is arranged in the second sliding groove 31 in a penetrating manner. When the locking member 11 is pressed to slide relative to the base 3, the locking member 11 slides in the second slide groove 31 along the longitudinal extension direction of the second slide groove 31.
In this embodiment, the locking mechanism further includes a slider 12, the slider 12 is slidably disposed on the base 3, and the locking member 11 is fixedly disposed on the slider 12. The locking member 11 is a locking pin.
The revolute joint further comprises an elastic element 13 for driving the locking mechanism to reset from the unlocking state to the locking state, in this embodiment, the elastic element 13 is a compression spring, and two end portions of the compression spring are respectively abutted to the sliding block 12 and the base 3. When the sliding block 12 is pressed to slide relative to the base 3, the pressure spring is compressed, and after the sliding block 12 is loosened, the sliding block 12 slides reversely under the action of the elastic force of the pressure spring, so that the locking pin is driven to slide and reset synchronously.
The locking piece 11 can be provided with one or more, the locking groove 21 on each joint seat is arranged in one-to-one correspondence with the locking piece 11, only one first sliding groove 22 is arranged on each joint seat, and each locking groove 21 on each joint seat is communicated with the one first sliding groove 22. When the locking mechanism is in a locked state, each locking piece 11 is arranged in the locking groove 21 of each joint seat in a one-to-one correspondence, and when the locking mechanism is unlocked, each locking piece 11 is disengaged from the locking groove 21 and slides into the first sliding groove 22.
The lengths of the first sliding grooves 22 on the respective joint seats in the circumferential direction of rotation of the joint seats may be the same. Therefore, after the locking mechanism is unlocked, the joint seats can rotate relatively without influencing each other and can rotate independently.
The length of the first sliding groove 22 on each joint seat along the circumferential direction of the joint seat rotation can also be totally or partially different. Like this, after locking mechanical system unblock, when base 3 rotated for other joint seats, when locking piece 11 slided in each first spout 22, locking piece 11 can support earlier and establish the tip at the less first spout 22 of length, and at this moment, when base 3 rotated for other joint seats, can drive the joint seat synchronous rotation that sets up the less first spout 22 of length, can realize the linkage between base and each joint seat like this, convenient operation.
One locking groove 21 on each joint seat is communicated with one end of the first sliding groove 22, so that the base 3 can only rotate relative to other joint seats in one direction after the locking mechanism is unlocked.
The utility model also discloses a children's shallow, this children's shallow has as above-mentioned revolute joint.
Specifically, as shown in fig. 7 to 10, the stroller includes a stroller frame, the stroller frame includes a front bracket 101 for mounting a front wheel assembly 201, a rear bracket 102 for mounting a rear wheel assembly 202, and a push rod assembly, the push rod assembly includes a lower push rod 103 and an upper push rod 104, and the upper push rod 104 is slidably disposed on the lower push rod 103 along a length extending direction of the lower push rod 103.
The lower push rod 103 is a base rod and is fixedly connected with the base 3, the front support 101 and the rear support 102 are connecting rods, a joint seat is fixedly connected to the front support 101 and the rear support 102, specifically, the joint seat fixedly connected with the front support 101 is a first joint seat 4, and the joint seat fixedly connected with the rear support 102 is a second joint seat 5.
When the stroller is in the unfolded state, the locking mechanism is in the locked state, i.e. the locking pieces 11 are inserted into the locking grooves 21 on the first joint seat 4 and the second joint seat 5, respectively.
When the child stroller is folded, the upper push rod 104 slides relative to the lower push rod 103 to be close to the lower push rod 103. After the upper push rod 104 slides to a set position relative to the lower push rod 103, the upper push rod 104 abuts against the sliding block 12, and when the upper push rod 104 continues to slide relative to the lower push rod 103, the sliding block 12 can be driven to drive the locking piece 11 to slide relative to the base 3, and when the upper push rod 104 slides to a proper position relative to the lower push rod 103, the locking piece 11 is released from the locking groove 21 on the first joint seat 4 and the second joint seat 5 and enters the first sliding groove 22 on the first joint seat 4 and the second joint seat 5, at this time, the locking mechanism is unlocked, and the push rod assembly can be turned downwards and close to the rear support 102. The length of the first sliding groove 22 on the second joint seat 5 can be smaller than the length of the first sliding groove 22 on the first joint seat 4, so that when the push rod assembly rotates to approach the rear support 102, the locking member 11 abuts against the end of the first sliding groove 22 on the second joint seat 5, at this time, when the push rod assembly continues to rotate downward, the rear support 102 can be driven to synchronously turn forward to approach the front support 101, so that the folding operation of the stroller is more convenient, when the push rod assembly rotates downward until the locking member 11 abuts against the end of the first sliding groove 22 on the first joint seat 4, the push rod assembly cannot continue to rotate, the stroller is in a final folded state, as shown in fig. 10, the front support 101, the rear support 102 and the push rod assembly closely approach together.
Of course, the length of the first sliding slot 22 on the second joint seat 5 may be the same as the length of the first sliding slot 22 on the first joint seat 4, so that the push rod assembly and the rear bracket 102 can be rotated to be close to the front bracket 101, respectively, to realize the folding operation of the stroller.
When the stroller needs to be unfolded from the folded state, the push rod assembly and the rear support 102 are rotated in opposite directions, when the push rod assembly rotates to the state that the locking piece 11 abuts against the second sliding groove 22 on the first joint seat 4 and the second joint seat 5 respectively, the push rod assembly cannot rotate in opposite directions continuously, at this time, the upper push rod 104 slides in the direction of extending out of the lower push rod 103 relative to the lower push rod 103, so that the upper push rod 104 is disengaged from the slider 12, the force of the upper push rod 104 acting on the slider 12 disappears, the slider 12 slides in opposite directions under the action of the elastic force of the pressure spring, the locking piece 11 is driven to slide in opposite directions to reset, until the locking piece 11 slides into the locking groove 21 on the first joint seat 4 and the second joint seat 5 respectively, the locking mechanism is locked again, and the stroller is in a stable unfolded state.
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 rotary joint is used for the rotary connection among a plurality of rod pieces, and comprises a base and joint seats, wherein one rod piece in the plurality of rod pieces is a base rod, the other rod pieces are connecting rods, the base is connected with the base rod, each connecting rod is connected with one joint seat, the base and the joint seats are rotationally connected around the same rotating shaft, and the rotary joint further comprises a locking mechanism for locking the positions of the plurality of rod pieces, and the rotary joint is characterized in that: the locking mechanism comprises a locking piece which can be slidably arranged on the base, locking grooves which are arranged on the joint seats and a first sliding groove communicated with the locking grooves, the locking grooves and the first sliding grooves are matched with the locking piece, when the locking mechanism is in a locking state, the locking piece is positioned in the locking grooves, when the locking piece slides from the locking grooves into the first sliding groove, the locking mechanism is unlocked, and the locking piece is positioned in the first sliding groove and can slide along the length extending direction of the first sliding groove.
2. The revolute joint of claim 1, wherein: the locking mechanism further comprises a sliding block which is slidably arranged on the base, and the locking piece is fixedly arranged on the sliding block.
3. The revolute joint of claim 2, wherein: the rotary joint further comprises an elastic piece for driving the locking mechanism to reset from an unlocking state to a locking state, and two end parts of the elastic piece are respectively abutted to the sliding block and the base.
4. The revolute joint of claim 1, wherein: the base is provided with a second sliding groove, the second sliding groove extends along the sliding direction of the locking piece, the second sliding groove is matched with the locking piece, and the locking piece is arranged in the second sliding groove in a penetrating mode and can slide along the length extending direction of the second sliding groove.
5. The revolute joint of claim 1, wherein: the locking pieces are arranged in a plurality of manners, the locking grooves on the joint seats are in one-to-one correspondence with the locking pieces, each locking groove on each joint seat is communicated with the first sliding groove, when the locking mechanism is in a locking state, each locking piece is located in the locking groove, and when the locking mechanism is unlocked, each locking piece is separated from the locking groove and slides into the first sliding groove.
6. The revolute joint of claim 1, wherein: the positions of the lock grooves on the joint seats are in one-to-one correspondence, the first sliding grooves on the joint seats extend along the rotating circumferential direction of the joint seats, and the diameters of circumferences where the first sliding grooves on the joint seats are located are the same.
7. The revolute joint of claim 6, wherein: the lengths of the first sliding grooves on the joint seats along the circumferential direction of the joint seats are the same, or the lengths of the first sliding grooves on the joint seats along the circumferential direction of the joint seats are all or partially different.
8. The revolute joint of claim 1, wherein: one locking groove on the joint seat is communicated with one end of the first sliding groove.
9. A stroller, characterized in that: has a revolute joint according to any one of claims 1 to 8.
10. The stroller of claim 9, wherein: child cart includes fore-stock, after-poppet and push rod subassembly, push rod subassembly includes the push down rod and can follows the length extending direction of push down rod sets up with sliding last push rod on the push down rod, the push down rod does the base lever, the push down rod with base fixed connection, the fore-stock with the after-poppet does the connecting rod, the fore-stock with on the after-poppet respectively fixedly connected with one the joint seat works as the push up rod is relative after the push down rod slides to the settlement position, the push up rod with the locking piece cooperatees, the push up rod continuously slides and orders about locking mechanism unblock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921806447.2U CN211167047U (en) | 2019-10-25 | 2019-10-25 | Rotating joint and baby stroller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921806447.2U CN211167047U (en) | 2019-10-25 | 2019-10-25 | Rotating joint and baby stroller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211167047U true CN211167047U (en) | 2020-08-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921806447.2U Active CN211167047U (en) | 2019-10-25 | 2019-10-25 | Rotating joint and baby stroller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211167047U (en) |
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2019
- 2019-10-25 CN CN201921806447.2U patent/CN211167047U/en active Active
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