Folding connection and butt joint fixing device and folding bicycle with folding connection and butt joint fixing device
By designing a locking mechanism on the folding bike, and utilizing the cooperation of the locking tongue and the locking hole, the problem of the bike body not being fixed after folding is solved, achieving better stability and making it easier to carry.
Patent Information
- Application Number
- CN202422790034.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing folding bikes, even when folded, still allow the two parts of the bike to rotate relative to each other, making them inconvenient to carry.
Design a folding connection and fixing device, which realizes the fixed connection between the first folding part and the second folding part through a locking mechanism, utilizes the cooperation of the lock tongue and the lock hole, and realizes locking and unlocking through the reset lock.
It improves the stability of the folded bike, allowing it to remain in a stable position after folding, making it easy to carry.
Smart Images
Figure CN223508419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folding vehicle technology, and in particular to a folding connection docking and fixing device and a folding vehicle thereof. Background Technology
[0002] Folding bikes include folding electric bikes and folding bicycles. Folding bikes use a folding mechanism on the bicycle frame to fold the front and rear wheels together, thus reducing the space occupied by the bike, making it easy to transport and carry. In the context of advocating energy conservation and emission reduction, folding bikes are widely used.
[0003] Existing folding bikes are all equipped with folding mechanisms. Some folding bikes allow the two parts of the bike body to still rotate relative to each other after folding. Since the two parts of the bike body are not in a relatively fixed state, it is quite inconvenient to carry. Utility Model Content
[0004] To address the aforementioned issues, this utility model aims to provide a folding connection and fixing device and its folding vehicle, which can achieve a fixed connection after folding and improve the stability of the folded product.
[0005] The technical problem solved by this utility model can be achieved by the following technical solution:
[0006] A folding connection and fixing device includes a first folding part and a second folding part, with a locking mechanism provided between the first folding part and the second folding part. The locking mechanism includes a first base and a second base, with the first base fixedly installed on the first folding part and the second base fixedly installed on the second folding part. A locking tongue is provided on the first base, and a locking seat is provided on the second base. A locking hole is provided in the locking seat, and the locking tongue is used to cooperate with the locking hole. A reset locking member is also provided in the locking seat. When the first folding part and the second folding part are folded together, the locking tongue can be inserted into the locking hole and locked by the reset locking member. The reset locking member can be moved to unlock the locking tongue and separate the locking tongue from the locking hole.
[0007] The latch includes a lock head and a lock shaft. When the reset locking member locks with the latch, the reset locking member locks the lock head in place. The outer side of the lock hole is provided with a flared part, which is used to guide the insertion of the lock head.
[0008] The outer diameter of the lock head is larger than that of the lock shaft, and a lock groove cavity is formed on the outer side of the lock shaft.
[0009] The first base is provided with a first adjustment hole, and a mounting component is fitted on the first adjustment hole. The mounting component is fixedly installed by adjusting the position of the first adjustment hole and the first folding part.
[0010] The second base includes a mounting plate with a second adjustment hole. A fastener is fitted onto the second adjustment hole. The fastener is fixedly engaged with the lock seat through the second adjustment hole. The lock seat can be adjusted in position by the engagement of the fastener with the second adjustment hole.
[0011] The reset locking component includes a locking pin, a locking pin seat, and a locking pin switch. The locking pin switch is installed in conjunction with the locking pin and can drive the locking pin to move. The locking pin is accommodated in the inner cavity of the locking pin seat. The locking pin seat is also provided with a reset element. When the locking pin moves along the inner cavity of the locking pin seat, the reset element deforms.
[0012] When the locking pin is in the lock slot cavity, the locking pin locks the lock head in place.
[0013] The locking pin switch includes a pull cord, one end of which is fixedly connected to the locking pin, and the other end extends to the outside of the locking pin seat.
[0014] It also includes a pull rope tube, which is located on the second base, the pull rope passes through the pull rope tube, and a pull rope handle is provided at the outer end.
[0015] A folding vehicle employing a folding connection and fixing device includes any one of the above-mentioned folding connection and fixing devices.
[0016] The first fold is the front section, and the second fold is the rear section.
[0017] The advantages of this utility model over the prior art are as follows: This utility model utilizes a locking mechanism to facilitate the fixed connection of the first folding part and the second folding part after folding, so that the first folding part and the second folding part can have good stability after folding; the above structure is particularly suitable for folding vehicles, so that the folding vehicle can achieve good folding and fixing after folding.
[0018] The features of this utility model can be clearly understood by referring to the drawings and the following detailed description of the preferred embodiments. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the mounting structure of the locking mechanism of this utility model. Figure 1 ;
[0021] Figure 3 This is an exploded view of the locking mechanism of this utility model;
[0022] Figure 4 This is a cross-sectional view of the locking mechanism of this utility model;
[0023] Figure 5 This is a schematic diagram of the mounting structure of the locking mechanism of this utility model. Figure 2 ;
[0024] Figure 6 This is a schematic diagram of the mounting structure of the locking mechanism of this utility model. Figure 3 ;
[0025] Figure 7 This is a schematic diagram of the folding and mounting structure of the folding vehicle of this utility model. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model. Example 1
[0027] Combination Figures 1 to 6 As shown, this utility model discloses a folding connection and fixing device, including a first folding part 100 and a second folding part 200. A locking mechanism 300 is provided between the first folding part 100 and the second folding part 200. The first folding part 100 and the second folding part 200 can be folded together by a folding device, wherein the folding device is a commonly used component in the prior art.
[0028] This embodiment includes a locking mechanism 300, which includes a first base 310 and a second base 320. The first base 310 is fixedly installed on the first folding part 100. The first base 310 can also be directly welded to the first folding part 320, or it can be fixed to the first folding part 100 by fasteners such as fastening bolts or fastening screws. The second base 320 is fixedly installed on the second folding part 200. When the first folding part 100 and the second folding part 200 are folded together, the first base 310 and the second base 320 are corresponding to each other.
[0029] In the specific structure, a latch 330 is provided on the first base 310, and a lock seat 340 is provided on the second base 320. A lock hole 341 is provided inside the lock seat 340, and the latch 330 is used to cooperate with the lock hole 341. A reset lock member 350 is also provided inside the lock seat 340. Preferably, a flared portion 342 is provided on the outside of the lock hole 341. The flared portion 342 is used to guide the insertion of the lock head 331. The outward expansion of the flared portion 342 increases the docking stability and improves the docking accuracy. When the first folding portion 100 and the second folding portion 200 are folded together, the latch 330 can be embedded in the lock hole 341 and locked by the reset lock member 350. The reset lock member 350 can be moved to unlock the latch 330 and separate the latch 330 from the lock hole 341.
[0030] In one embodiment, the latch 330 includes a lock head 331 and a lock shaft 332. When the reset locking member 350 locks with the latch 330, the reset locking member 350 locks the lock head 331. The outer diameter of the lock head 331 is larger than that of the lock shaft 332, and a lock groove 333 is formed on the outer side of the lock shaft 332. In the locked state, the reset locking member 350 cooperates with the lock groove 333 to restrict the lock head 331.
[0031] In other equivalent embodiments, the locking tongue 330 can also be a locking plate, locking hook, or other structure, which can be used to restrict the locking mechanism.
[0032] In conjunction with the above, the first base 310 is provided with a first adjustment hole 311, and a mounting part 312 is fitted onto the first adjustment hole 311. The mounting part 312 is fixedly installed with the first folding part 100 through the first adjustment hole 311. The first adjustment hole 311 is typically designed as a runway hole structure with adjustable stroke. The mounting part 312 is a commonly used fastening bolt, fastening screw, or other component, used to mate with the corresponding fixing hole on the first folding part 100 to achieve docking installation. The second base 320 includes a mounting plate, on which a second adjustment hole 321 is provided. A fastener 322 is fitted onto the second adjustment hole 321, and the fastener 322 is fixedly installed with the first folding part 100 through the second adjustment hole 321. The lock seat 340 is fixedly fitted, and its position can be adjusted by the engagement of the fastener 322 with the second adjustment hole 321. The fastener 322 is a commonly used fastening bolt or screw. The first adjustment hole 311 and the second adjustment hole 321 are optimized. The first adjustment hole 311 and the second adjustment hole 321 are usually racetrack-shaped structures. The second adjustment hole 321 can facilitate the position adjustment of the lock seat 340. Combined with the positional engagement of the first base 310, it is easy to achieve the corresponding position of the lock tongue 330, improving the docking error tolerance. The combination of the two allows the entire device to be appropriately adjusted and installed in the up, down, left and right directions to offset the influence of frame manufacturing and installation errors, which is beneficial for alignment and locking.
[0033] In one embodiment, the reset lock 350 includes a locking pin 351, a locking pin seat 352, and a locking pin switch 353. The locking pin switch 353 is installed in conjunction with the locking pin 351 and can drive the locking pin 351 to move. The locking pin 351 is accommodated in the inner cavity of the locking pin seat 352. A reset element 354 is also provided in the locking pin seat 352. When the locking pin 351 moves along the inner cavity of the locking pin seat 352, the reset element 354 deforms. The reset element 354 is usually a reset spring. The reset element 354 is embedded in the inner cavity of the locking pin seat 352. Usually, one end abuts against the inner wall of the locking pin seat 352, and the other end abuts against the locking pin 351. As the locking pin 351 moves, the reset element 354 is compressed and deformed.
[0034] When the locking pin 351 is located in the lock groove cavity 333, the locking pin 351 locks the lock head 331, which facilitates the limitation of the lock tongue 330.
[0035] In one embodiment, combined with the appendix Figure 6 As shown, the locking pin switch 353 includes a pull rope 354, one end of which is fixedly connected to the locking pin 351, and the other end extends to the outside of the locking pin seat 352; it also includes a pull rope tube 355, which is located on the second base, the pull rope passes through the pull rope tube, and a pull rope handle is provided at the outer end for easy extension operation.
[0036] In other equivalent embodiments, the locking switch 353 can also be a handle, a button, a spring pin, etc.
[0037] In summary, during actual use, after the first folding part 100 and the second folding part 200 are folded, the latch 330 and the lock hole 341 correspond to each other. As the latch 330 is gradually inserted into the lock hole 341, because the lock head 331 adopts a hemispherical structure, it usually abuts against the locking pin 351. As the lock head 331 is gradually inserted, the locking pin 351 moves outward until the locking pin 351 separates from the lock head 331 and is directly inserted into the lock groove cavity 333. The lock head 351 cannot be directly disengaged from the locking pin 31, thus achieving locking. By operating the locking pin switch 353, the locking pin 351 completes the position movement, causing the end of the locking pin 351 to disengage from the lock groove cavity 333. The user can then directly separate the latch 330 from the lock hole 341 to achieve unlocking.
[0038] This utility model utilizes a locking mechanism 300 to facilitate the fixed connection of the first folding part 100 and the second folding part 200 after folding, so that the first folding part 100 and the second folding part 200 can have good stability after folding. Example 2
[0039] Combined with appendix Figure 7 As shown in the figure, based on Embodiment 1, this embodiment discloses a folding vehicle using a folding connection docking and fixing device, including a folding connection docking and fixing device as in Embodiment 1. The folding connection docking and fixing device is particularly suitable for folding vehicles, so that the folding vehicle can achieve good folding and fixing after folding.
[0040] In the specific structure, the first folding part 100 is the front part 101, and the second folding part 200 is the rear part 201. The front part 101 is usually the front frame, and the rear part 201 is usually the rear frame.
[0041] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A folding connection and fixing device, comprising a first folding part and a second folding part, wherein a locking mechanism is provided between the first folding part and the second folding part, characterized in that: The locking mechanism includes a first base and a second base. The first base is fixedly installed on the first folded portion, and the second base is fixedly installed on the second folded portion. A latch is provided on the first base, and a lock seat is provided on the second base. A lock hole is provided in the lock seat, and the latch is used to cooperate with the lock hole. A reset locking member is also provided in the lock seat. When the first folded portion and the second folded portion are folded together, the latch can be inserted into the lock hole and locked by the reset locking member. The reset locking member can be moved to unlock the latch, so that the latch can be separated from the lock hole.
2. The folding connection and fixing device according to claim 1, characterized in that: The latch includes a lock head and a lock shaft. When the reset locking member locks with the latch, the reset locking member locks the lock head in place. The outer side of the lock hole is provided with a flared part, which is used to guide the insertion of the lock head.
3. The folding connection and fixing device according to claim 2, characterized in that: The outer diameter of the lock head is larger than that of the lock shaft, and a lock groove cavity is formed on the outer side of the lock shaft.
4. The folding connection and fixing device according to claim 1, characterized in that: The first base is provided with a first adjustment hole, and a mounting component is fitted on the first adjustment hole. The mounting component is fixedly installed by adjusting the position of the first adjustment hole and the first folding part.
5. The folding connection and fixing device according to claim 1, characterized in that: The second base includes a mounting plate with a second adjustment hole. A fastener is fitted onto the second adjustment hole. The fastener is fixedly engaged with the lock seat through the second adjustment hole. The lock seat can be adjusted in position by the engagement of the fastener with the second adjustment hole.
6. A folding connection and fixing device according to any one of claims 1 to 5, characterized in that: The reset locking mechanism includes a locking pin, a locking pin seat, and a locking pin switch. The locking pin switch is installed in conjunction with the locking pin and can drive the locking pin to move. The locking pin is accommodated in the inner cavity of the locking pin seat. The locking pin seat is also provided with a reset element. When the locking pin moves along the inner cavity of the locking pin seat, the reset element deforms. When the locking pin is located in the lock groove cavity, the locking pin locks the lock head.
7. A folding connection and fixing device according to claim 6, characterized in that: The locking pin switch includes a pull cord, one end of which is fixedly connected to the locking pin, and the other end extends to the outside of the locking pin seat.
8. The folding connection and fixing device according to claim 7, characterized in that: It also includes a pull rope tube, which is located on the second base, the pull rope passes through the pull rope tube, and a pull rope handle is provided at the outer end.
9. A folding vehicle employing a folding connection and fixing device, characterized in that: A folding connection docking and fixing device including any one of claims 1 to 8.
10. A folding vehicle employing a folding connection and fixing device according to claim 9, characterized in that: The first fold is the front section, and the second fold is the rear section.