CN220518488U - Self-locking folding structure - Google Patents
Self-locking folding structure Download PDFInfo
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- CN220518488U CN220518488U CN202322242091.7U CN202322242091U CN220518488U CN 220518488 U CN220518488 U CN 220518488U CN 202322242091 U CN202322242091 U CN 202322242091U CN 220518488 U CN220518488 U CN 220518488U
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- locking
- connecting part
- folding structure
- lock catch
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Abstract
The utility model discloses a self-locking folding structure, which comprises: the first hinge seat is hinged with the second hinge seat through a hinge shaft; the buckling position is arranged on the inner side surface of the second connecting part relative to the second hinging seat; the self-locking assembly is arranged on the inner side surface of the first connecting part and comprises a linkage piece connected with the hinge shaft, a lock catch with a lock tongue and an elastic piece arranged between the linkage piece and the lock catch; the elastic piece generates self-locking elasticity to enable the lock catch to be buckled with the buckling position to carry out self-locking when the first connecting part rotates to a use state coaxial with the second connecting part. The utility model ensures that the first connecting part and the second connecting part are self-locked when being switched to the use state of coaxial connection so as to improve the structural reliability, and has simple integral structure and convenient operation and use for users.
Description
Technical Field
The utility model relates to the field of folding structures, in particular to a self-locking folding structure.
Background
For example, the foldable scooter, the foldable bicycle, the foldable battery car and other foldable scooter tools are provided with the foldable frame, so that the foldable scooter is folded when not needed to be used, and is convenient to store and carry. The folding structure of the prior art is numerous, generally comprises a hinge structure and a locking structure, and the locking structure is utilized to enable two foldable parts of the frame to be locked in a use state.
For example, in the technical scheme disclosed in the prior application CN201520594425X, the locking device comprises a tensioning portion connected with the hinge shaft, a limiting block, a pull rod connected between the tensioning portion and the limiting block, a locking piece with a handle, a lock tongue arranged on the locking piece and a lock hole arranged on the first connecting portion, wherein the locking piece is eccentrically arranged with the tensioning portion by using a limiting column, the tensioning portion is linked when the locking piece is rotated, the limiting block is tightly pressed between the first connecting portion and the second connecting portion by using the pull rod, and the lock tongue arranged on the locking piece is simultaneously connected with the lock hole of the first connecting portion in a buckling manner, so that the first connecting portion and the second connecting portion are locked. The technical proposal has more parts and more complex overall structure; the first connecting portion and the second connecting portion cannot be self-locked, the locking of the first connecting portion and the second connecting portion depends on the fact that a lock tongue on the lock catch piece is connected with a lock hole of the first connecting portion in a locked mode, operation and use of a user are inconvenient, and reliability is poor.
Disclosure of Invention
The utility model aims to at least solve one of the technical problems in the prior art, and provides a self-locking folding structure, which ensures that a first connecting part and a second connecting part are self-locked when being switched to a coaxially connected use state so as to improve the structural reliability.
The utility model discloses a self-locking folding structure, which comprises a first connecting part 1 with a first hinging seat 11 and a second connecting part 2 with a second hinging seat 21, wherein the first hinging seat 11 and the second hinging seat 21 are hinged and connected through a hinging shaft 3; the buckling position 23 is arranged on the inner side surface of the second connecting part 2 opposite to the second hinging seat 21; the self-locking assembly 4 arranged on the inner side surface of the first connecting part 1 comprises a linkage piece 41 connected with the hinge shaft 3, a lock catch 42 with a lock tongue 421 and an elastic piece 43 arranged between the linkage piece 41 and the lock catch 42; the elastic member 43 generates self-locking elasticity to enable the lock catch 42 to be buckled and connected with the buckling position 23 for self-locking when the first connecting part 1 rotates to a use state coaxial with the second connecting part 2.
In some preferred embodiments, the inner side of the first connecting portion 1 is provided with a sliding groove 12, and opposite sides of the latch 42 are slidably connected to the sliding groove 12.
In some preferred embodiments, the latch 42 extends beyond the spacing arms 422 on opposite sides thereof, with the linkage 41 being located between the spacing arms 422.
In some preferred embodiments, a connecting rod 44 is disposed between the linkage 41 and the lock catch 42, and the elastic member 43 is disposed on the connecting rod 44; the two ends of the connecting rod 44 are a fixed end and a movable end respectively, one of the linkage 41 and the lock catch 42 is fixedly connected with the fixed end, and the other is movably connected with the movable end.
In some preferred embodiments, an adjusting bolt is provided on the link 41 or the catch 42 to adjust the movable travel of the link 44.
In some preferred embodiments, the resilient member is a compression spring that is sleeved over the link 44.
In some preferred embodiments, the linkage 41 is fixedly connected to the hinge shaft 3, or the linkage 41 is in abutting connection with the hinge shaft 3.
In some preferred embodiments, the linkage 41 has an abutment cambered surface provided toward the hinge shaft 3, and is in abutting connection with the hinge shaft 3 by the abutment cambered surface.
In some preferred embodiments, a slant guiding structure is provided between the buckling position 23 and the locking tongue 421, and the slant guiding structure includes: a first guiding inclined plane 231 arranged at the upper edge of the buckling position 23, and a second guiding inclined plane 4211 arranged at the lower side surface of the lock tongue 421 and capable of being matched with the first guiding inclined plane 231 in an inclined way.
In some preferred embodiments, the end of the catch 42 near the tongue 421 is provided with a push rod, the end of the push rod extending to the outer side of the first connection part 1.
Compared with the prior art, the utility model has the following beneficial effects:
the self-locking folding structure disclosed by the utility model has a simple integral structure, and can be used for self-locking when the first connecting part and the second connecting part are switched from the folding state to the using state, and locking is not needed by other parts arranged outside the first connecting part or the second connecting part, so that the operation and the use of a user are simplified, and the reliability of the integral structure is improved. And the self-locking folding structure has wide implementation prospect, and can be particularly widely applied to folding frames of foldable scooter, foldable bicycle, foldable battery car and other foldable riding tools so as to improve the reliability of the folding frames.
Drawings
Fig. 1 is a schematic structural view of a second connecting portion.
Fig. 2 is a schematic structural view of the self-locking assembly assembled on the first connecting portion.
Fig. 3 is an assembly schematic diagram of the self-locking assembly and the first connecting portion.
Fig. 4 is a schematic structural view of the self-locking assembly.
Fig. 5 is a schematic view of the internal structure of the self-locking folding structure in self-locking condition.
Detailed Description
In order to further describe the technical means and effects adopted by the present application to achieve the preset purpose, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the present application with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
As shown in connection with fig. 1 to 5. The utility model discloses a self-locking folding structure, which comprises: the first connecting part 1 with the first hinging seat 11 and the second connecting part 2 with the second hinging seat 21 are hinged and connected through the hinging shaft 3, so that the first connecting part 1 and the second connecting part 2 can be rotatably connected, and the first connecting part 1 and the second connecting part 2 can be conveniently switched between a folded state and a use state as required. The self-locking folding structure disclosed by the utility model is used for realizing self-locking when the first connecting part 1 and the second connecting part 2 are switched from a folding state to a using state in which the two parts are coaxially connected.
Specifically, the self-locking folding structure further comprises: the buckling position 23 is arranged on the inner side surface of the second connecting part 2 opposite to the second hinging seat 21; the self-locking assembly 4 is arranged on the inner side surface of the first connecting part 1; the self-locking assembly 4 comprises a linkage 41 connected with the hinge shaft 3, a lock catch 42 with a lock tongue 421 and an elastic piece 43 arranged between the linkage 41 and the lock catch 42; the elastic member 43 generates self-locking elasticity to enable the lock catch 42 to be buckled and connected with the buckling position 23 when the first connecting part 1 rotates to a use state coaxial with the second connecting part 2, so that the first connecting part 1 and the second connecting part 2 are self-locked when being switched to the use state.
The elastic piece 43 generates self-locking elasticity back to the linkage piece 41 on the lock catch 42, when the first connecting part 1 rotates to a use state coaxial with the second connecting part 2, the self-locking elasticity pushes the lock catch 42 to move towards the buckling position 23, the lock tongue 421 of the lock catch 42 is abutted to the buckling position 23 and then slides into the buckling position 23, the lock tongue 421 is limited by the buckling position 23, the first connecting part 1 and the second connecting part 2 cannot rotate, and self-locking of the first connecting part 1 and the second connecting part 2 in the use state is realized.
In some preferred embodiments, a beveled guide structure is provided between the snap-fit location 23 and the locking tongue 421 to guide the locking tongue 421 into the snap-fit location 23. The inclined plane guide structure includes: a first guiding inclined plane 231 (see fig. 1) provided at the upper edge of the locking position 23, and a second guiding inclined plane 4211 provided at the lower side of the locking tongue 421, wherein the second guiding inclined plane 4211 is in inclined fit with the first guiding inclined plane 231.
When the first connecting portion 1 rotates toward the second connecting portion 2 to be nearly coaxial, the second guiding inclined surface 4211 of the lock tongue 421 abuts against the first guiding inclined surface 231 at the upper edge of the locking position 23; when the first connecting portion 1 is further close to the second connecting portion 2 and coaxial, the second guiding inclined plane 4211 is matched with the first guiding inclined plane 231 in an inclined plane, so that the lock catch 42 is pushed to slightly retract towards the linkage member 41 to avoid the upper edge of the buckling position 23, then the spring bolt 421 is inserted into the buckling position 23 under the self-locking elastic effect generated by the elastic member 43, and the spring bolt cannot automatically withdraw from the buckling position 23 due to the self-locking elasticity generated by the elastic member 43, so that the first connecting portion 1 and the second connecting portion 2 are self-locked in a coaxial use state and cannot be switched to a folding state, and the integral use reliability of the self-locking folding structure is improved.
In some preferred embodiments, the inner side of the first connecting portion 1 is provided with a sliding groove 12, and opposite sides of the latch 42 are slidably connected to the sliding groove 12. That is, the lock catch 42 slides in the sliding groove 12 under the self-locking elastic action of the elastic member 43, so that the lock catch 42 can move freely without jamming, and the structural reliability of the self-locking folding structure is further improved.
In some preferred embodiments, the latch 42 extends beyond the spacing arms 422 on opposite sides thereof, with the linkage 41 being located between the spacing arms 422. The two limiting arms 422 are utilized to limit the linkage piece 41, so that the linkage piece 41 is prevented from being shifted under the action of the elastic piece 43, and the integral structural reliability of the self-locking folding structure is ensured.
In some preferred embodiments, a connecting rod 44 is disposed between the linkage 41 and the lock catch 42, and the elastic member 43 is disposed on the connecting rod 44; the two ends of the connecting rod 44 are a fixed end and a movable end respectively, one of the linkage 41 and the lock catch 42 is fixedly connected with the fixed end, and the other is movably connected with the movable end. The link 44 serves at least two functions: firstly, limit is provided for the elastic piece 43, so that the self-locking elastic direction generated by the elastic piece 43 is ensured; and secondly, the movable travel of the lock catch 42 relative to the linkage 41 is limited.
In some preferred embodiments, an adjusting bolt is provided on the link 41 or the catch 42 to adjust the movable travel of the link 44. The movable stroke of the adjusting connecting rod 44 is changed by the adjusting bolt, and the movable stroke in the proper range is beneficial to ensuring the integral working reliability of the self-locking folding structure.
In some preferred embodiments, the resilient member 43 is a compression spring that is sleeved over the link 44. The structure is simple and convenient to assemble.
In some preferred embodiments, the linkage 41 is fixedly connected to the hinge shaft 3; alternatively, the link 41 is directly or indirectly abutted against and connected to the hinge shaft 3. For example, the link 41 has an abutment arc surface 411 provided toward the hinge shaft 3, and is directly abutted and connected to the hinge shaft 3 by the abutment arc surface 411. For another example, the hinge shaft 3 is provided with an abutting portion 31, and the abutting cambered surface 411 is directly abutted and connected with the abutting portion 31, so as to realize indirect abutting and connection between the moving member 41 and the hinge shaft 3.
In some preferred embodiments, the end of the catch 42 near the tongue 421 is provided with a push rod 45, the end of which extends to the outer side of the first connection part 1. For ease of assembly, one end of the push rod 45 is screwed with the catch 42. Typically, a push handle is provided at the end of push rod 45.
When the first connecting part 1 and the second connecting part 2 need to be switched from the coaxial use state to the folding storage state, a pressing force is applied to the push rod 45 by pressing the handle, the pressing force is larger than the self-locking elasticity of the elastic piece 43, the push rod 45 pushes the lock catch 42 to move towards the direction of the linkage piece 41, and the lock tongue 421 is driven to withdraw from the buckling position 23 of the second connecting part 2 so as to unlock the first connecting part 1 and the second connecting part 2, and the elastic piece 43 continues to have the self-locking elasticity. At this time, the second connecting portion 2 can rotate relative to the first connecting portion 1 according to the hinge shaft 3, so as to be convenient to switch to the folded storage state.
The self-locking folding structure disclosed by the utility model is particularly suitable for being applied to folding frames of foldable scooter, foldable bicycle, foldable battery car and other foldable scooter tools so as to realize self-locking generated by the self-locking folding structure when the folding frames are switched from a folding state to a using state, and the self-locking folding structure has a simple integral structure, is beneficial to being convenient for a user to operate and use, and is beneficial to improving the integral structure reliability of the folding frames.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.
Claims (10)
1. The self-locking folding structure comprises a first connecting part (1) with a first hinging seat (11) and a second connecting part (2) with a second hinging seat (21), wherein the first hinging seat (11) and the second hinging seat (21) are hinged through a hinging shaft (3); characterized by further comprising:
a buckling position (23) which is arranged on the inner side surface of the second connecting part (2) opposite to the second hinging seat (21);
the self-locking assembly (4) is arranged on the inner side surface of the first connecting part (1) and comprises a linkage piece (41) connected with the hinge shaft (3), a lock catch (42) with a lock tongue (421) and an elastic piece (43) arranged between the linkage piece (41) and the lock catch (42);
the elastic piece (43) generates self-locking elasticity to enable the lock catch (42) to be buckled and connected with the buckling position (23) for self-locking when the first connecting part (1) rotates to a use state coaxial with the second connecting part (2).
2. The self-locking folding structure according to claim 1, wherein the inner side surface of the first connecting portion (1) is provided with a sliding groove (12), and two opposite sides of the lock catch (42) are slidably connected with the sliding groove (12).
3. The self-locking folding structure according to claim 1, characterized in that the two opposite sides of the lock catch (42) extend out of the limiting arms (422), and the linkage member (41) is located between the two limiting arms (422).
4. The self-locking folding structure according to claim 1, characterized in that a connecting rod (44) is provided between the linkage member (41) and the lock catch (42), and the elastic member (43) is provided on the connecting rod (44); the two ends of the connecting rod (44) are respectively a fixed end and a movable end, one of the linkage piece (41) and the lock catch (42) is fixedly connected with the fixed end, and the other is movably connected with the movable end.
5. The self-locking folding structure according to claim 4, characterized in that an adjusting bolt for adjusting the movable travel of the connecting rod (44) is provided on the link (41) or the lock catch (42).
6. The self-locking folding structure of claim 4, wherein the elastic member is a compression spring, and the compression spring is sleeved on the connecting rod (44).
7. The self-locking folding structure according to claim 1, characterized in that the linkage member (41) is fixedly connected with the hinge shaft (3), or the linkage member (41) is connected with the hinge shaft (3) in an abutting manner.
8. The self-locking folding structure according to claim 7, characterized in that the linkage member (41) has an abutment cambered surface (411) provided toward the hinge shaft (3), and is abutted and connected with the hinge shaft (3) by the abutment cambered surface (411).
9. The self-locking folding structure according to claim 1, characterized in that between the buckling position (23) and the locking tongue (421) there is a ramp guiding structure comprising: a first guiding inclined plane (231) arranged at the upper edge of the buckling position (23), and a second guiding inclined plane (4211) arranged at the lower side surface of the lock tongue (421) and capable of being matched with the first guiding inclined plane (231) in an inclined way.
10. The self-locking folding structure according to any one of claims 1 to 9, characterized in that the end of the shackle (42) close to the locking tongue (421) is provided with a push rod (45), the end of the push rod (45) extending to the outer side of the first connection portion (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322242091.7U CN220518488U (en) | 2023-08-18 | 2023-08-18 | Self-locking folding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322242091.7U CN220518488U (en) | 2023-08-18 | 2023-08-18 | Self-locking folding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220518488U true CN220518488U (en) | 2024-02-23 |
Family
ID=89939743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322242091.7U Active CN220518488U (en) | 2023-08-18 | 2023-08-18 | Self-locking folding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220518488U (en) |
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2023
- 2023-08-18 CN CN202322242091.7U patent/CN220518488U/en active Active
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