A folding locking device for electric bicycle and bicycle

Abstract

This utility model discloses a folding locking device for electric bicycles and bicycles, which includes an upper upright tube and a lower upright tube. The upper upright tube is connected to the upper end of the lower upright tube. The lower end of the upper upright tube is provided with a first folding connecting end, and the upper end of the lower upright tube is provided with a second folding connecting end. The first folding connecting end and the second folding connecting end are connected relative to each other. The rear ends of the first folding connecting end and the rear ends of the second folding connecting end are hinged together by a pivot. The front ends of the first folding connecting end and the front ends of the second folding connecting end are locked and fixed by locking components. The upper upright tube can be smoothly folded around the pivot, realizing the quick storage of electric bicycles or bicycles, which is convenient for carrying and storage. The front locking component includes a locking clip, a locking clip, a locking stud, and a clip spring, so that the upper upright tube and the lower upright tube are firmly locked in the unfolded state, preventing loosening during riding or transportation and improving the safety of use.

Description

Technical Field

[0001] This utility model belongs to the technical field of folding locking devices, specifically relating to a folding locking device for electric bicycles and bicycles. Background Technology

[0002] Folding bicycles and electric bicycles are widely used in modern transportation due to their portability, but the existing folding structure has some shortcomings in actual use.

[0003] The frames of existing folding bicycles or electric bicycles typically rely on simple mechanical buckles or hinges during folding and unfolding. These structures are prone to problems such as unstable locking, loosening, inconvenience in operation, or insecure fixation after folding. This can cause the frame to shake during transportation, storage, or riding, posing safety hazards and affecting the user experience.

[0004] Existing folding mechanisms suffer from high structural complexity, unreasonable component combinations, cumbersome operation, or the need for additional tools to lock and unlock, causing inconvenience to users in daily use. Especially in the application of electric bicycles, due to the heavy weight of the vehicle, if the folding locking device is not securely locked, it can easily lead to abnormal stress or even damage to the structure during riding, affecting the overall stability and service life of the vehicle.

[0005] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0006] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a folding locking device for electric bicycles and bicycles to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a folding locking device for electric bicycles and bicycles, comprising an upper tube and a lower tube, the upper tube being connected to the upper end of the lower tube, the lower end of the upper tube being provided with a first folding connecting end, the upper end of the lower tube being provided with a second folding connecting end, the first folding connecting end and the second folding connecting end being connected relative to each other, the rear ends of the first folding connecting end and the rear ends of the second folding connecting end being hinged together by a pivot, and the front ends of the first folding connecting end and the front ends of the second folding connecting end being locked and fixed together by a locking component.

[0008] Furthermore, the rear end of the first folding connecting end is provided with a first movable through part, and the rear end of the second folding connecting end is provided with a second movable through part. The first movable through part and the second movable through part are correspondingly arranged and are hingedly connected by a pivot passing through the first movable through part and the second movable through part.

[0009] Furthermore, the front end of the first folding connecting end is provided with a first locking part, the front end of the second folding connecting end is provided with a second locking part, the interior of the second locking part is recessed with a connecting recess, the lower end of the first locking part is provided with a connecting protrusion, the connecting protrusion is embedded in the connecting recess, and the middle part of the connecting protrusion is provided with a threaded fixing screw hole.

[0010] Furthermore, the locking component includes an operating handle and a locking clip. The locking clip is engaged with the outer side of the first locking part and the second locking part. A fixing through hole is provided in the middle of the surface of the locking clip. The fixing through hole is correspondingly provided with the fixing screw hole. One end of the operating handle is provided with a threaded locking stud. The locking stud passes through the fixing through hole and the fixing screw hole and is threadedly engaged to fix the first locking part and the second locking part.

[0011] Furthermore, a retaining spring is fitted on the outer side of the locking stud, and the retaining spring is disposed between the locking retainer and the connecting protrusion.

[0012] Furthermore, the first locking part has symmetrically recessed positioning grooves on both sides of its surface, and the second locking part has symmetrically protruding positioning protrusions on both sides of its surface, with the positioning protrusions and the positioning grooves being positioned and connected.

[0013] Furthermore, the upper vertical tube is provided with a limiting lock on its outer side, and limiting screws are connected to both sides of the limiting lock. The lower vertical tube is provided with a limiting post on its outer side, and a limiting lock head is provided at the end of the limiting post. When the upper vertical tube and the lower vertical tube are rotated to the folded state, the limiting lock head on the limiting post enters the limiting lock. By rotating the limiting screw, the ends of the limiting screws are pressed against the outer side of the limiting lock head, thereby clamping and fixing the limiting lock head.

[0014] The present invention has the following advantages: the upper tube is connected to the upper end of the lower tube, the lower end of the upper tube is provided with a first folding connection end, the upper end of the lower tube is provided with a second folding connection end, the first folding connection end and the second folding connection end are connected relative to each other, the rear end of the first folding connection end and the rear end of the second folding connection end are connected by a pivot hinge, and the front end of the first folding connection end and the front end of the second folding connection end are locked together by a locking component. The folding locking device for electric bicycles and bicycles of the present invention, through the pivot hinge structure of the first folding connection end and the second folding connection end, enables the upper tube to fold smoothly around the pivot, realizing the quick storage of electric bicycles or bicycles, making them easy to carry and store. The front locking component includes a locking clip, a locking clip, a locking stud and a clip spring, so that the upper tube and the lower tube are firmly locked in the unfolded state, preventing loosening during riding or transportation, improving safety, and ensuring the stability and reliability of the device during long-term use while realizing the folding, unfolding and locking functions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the upper tube structure of this utility model.

[0018] Reference numerals: Upper riser 10; Lower riser 20; First folding connecting end 11; Second folding connecting end 21; Locking component 30; First movable through part 111; Second movable through part 211; First locking latch 112; Second locking latch 212; Connecting recess 213; Connecting protrusion 113; Fixing screw hole 114; Operating handle 31; Locking clip 32; Fixing through hole 321; Locking stud 311; Clip spring 33; Positioning groove 115; Positioning protrusion 214; Limiting lock part 12; Limiting screw 13; Limiting connector 22; Limiting lock head 221. Detailed Implementation

[0019] like Figures 1 to 3As shown, a folding locking device for electric bicycles includes an upper upright tube 10 and a lower upright tube 20. The upper upright tube 10 is connected to the upper end of the lower upright tube 20. The lower end of the upper upright tube 10 is provided with a first folding connecting end 11, and the upper end of the lower upright tube 20 is provided with a second folding connecting end 21. The first folding connecting end 11 and the second folding connecting end 21 are connected relative to each other. The rear end of the first folding connecting end 11 and the rear end of the second folding connecting end 21 are connected by a pivot hinge. The front end of the first folding connecting end 11 and the front end of the second folding connecting end 21 are locked together by a locking component 30, so that the frame can remain stable in the unfolded state. In use, the user unlocks the frame by rotating the locking component 30, which separates the front end of the first folding connecting end 11 from the front end of the second folding connecting end 21, releasing the frame from its locked state. At this time, the upper upright tube 10 can be folded to one side around the pivot axis at the rear end, thereby realizing the folding and storage of the frame, which is convenient for carrying and storing electric bicycles or bicycles. When it is needed to be used again, the upper upright tube 10 is flipped around the pivot axis to the unfolded position, so that the front end of the first folding connecting end 11 and the front end of the second folding connecting end 21 are reconnected. Then, the locking component is operated to lock it in place, thus completing the unfolding and locking of the frame.

[0020] In specific implementation, the rear end of the first folding connecting end 11 is provided with a first movable through part 111, and the rear end of the second folding connecting end 21 is provided with a second movable through part 211. The first movable through part 111 and the second movable through part 211 are correspondingly arranged, and are hinged to the first movable through part 111 and the second movable through part 211 through a pivot. In use, the upper upright tube 10 can be folded around the pivot to realize the folding or unfolding of the frame. When a user needs to fold the vehicle, they only need to first release the locking component 30 at the front end, so that the front ends of the first folding connection end 11 and the second folding connection end 21 are separated. At this time, the upper upright tube 10 can rotate around the pivot relative to the lower upright tube 20, so that the entire frame can be quickly folded and stored for easy carrying and storage. When a user needs to unfold the vehicle, they only need to flip the upper upright tube 10 around the pivot to a position aligned with the lower upright tube 20, and then use the locking component 30 to re-engage and fix the front ends of the first folding connection end 11 and the second folding connection end 12 to complete the folding and locking.

[0021] In practical implementation, the front end of the first folding connecting end 11 is provided with a first locking part 112, and the front end of the second folding connecting end 21 is provided with a second locking part 212. The second locking part 212 has a recessed connecting recess 213 inside. The lower end of the first locking part 112 has a connecting protrusion 113, which is embedded in the connecting recess 213. A threaded fixing screw hole 114 is opened in the middle of the connecting protrusion 113. The locking component 30... The device includes an operating handle 31 and a locking clip 32. The locking clip 32 engages with the outer sides of the first locking portion 112 and the second locking portion 212. A fixing through hole 321 is formed in the center of the surface of the locking clip 32, corresponding to a fixing screw hole 114. One end of the operating handle 31 has a threaded locking stud 311, which passes through the fixing through hole 321 and is threadedly engaged with the fixing screw hole 114 for secure connection. The first locking part 112 and the second locking part 212 are locked together. In use, when the user needs to unfold the frame, the upper upright tube 10 is rotated around the pivot to align with the lower upright tube 20, so that the connecting protrusion 113 is accurately inserted into the connecting recess 213. At this time, the operating handle drives the locking stud 311 to pass through the fixing through hole 321 and be threaded into the fixing screw hole 114. The tightening action of the operating handle 32 presses the locking part 32 tight. The first locking part 112 and the second locking part 212 are located on the outside of the frame, thus achieving a tight lock between them and keeping the frame stable in the unfolded state. When the user needs to fold the frame, he only needs to rotate the operating handle 32 to make the locking stud 311 disengage from the fixing screw hole 114 and release the clamping effect of the locking part 32. At this time, the first locking part 112 and the second locking part 212 are separated, and the upper tube 10 can be folded around the axis to one side to achieve quick storage of the whole vehicle.

[0022] In practical implementation, a retaining spring 33 is sleeved on the outer side of the locking stud 311. The retaining spring 33 is located between the locking retaining part 32 and the connecting protrusion 113. During use, when the operating handle 31 drives the locking stud 311 into the fixing screw hole 114, the retaining spring 33 is in a compressed state, thereby applying an elastic force outward, so that the locking retaining part 32 can stably fit against the outer side of the first locking part 112 and the second locking part 212, ensuring the reliability of the locking between them. When the user rotates the operating handle 31 to make the locking stud 311 exit the fixing screw hole 114, the elastic force of the retaining spring 33 pushes the locking retaining part 32 to automatically disengage from the outer side of the first locking part 112 and the second locking part 212, so that the connecting protrusion 113 can smoothly exit the connecting recess 213, thereby realizing quick folding.

[0023] In practical implementation, the first locking part 112 has symmetrically recessed positioning grooves 115 on both sides of its surface, and the second locking part 212 has symmetrically protruding positioning protrusions 214 on both sides of its surface. The two positioning protrusions 214 are positioned and connected to the two positioning grooves 115. In use, when the upper tube 10 and the lower tube 20 are flipped to the unfolded position under the action of the folding pivot, the positioning protrusions 214 can be embedded in the positioning grooves 115, thereby limiting and guiding the relative position of the two to avoid misalignment or displacement.

[0024] In practical implementation, the outer side of the upper riser 10 is provided with a limiting lock part 12, and the two sides of the limiting lock part 12 are connected to limiting screws 13. The outer side of the lower riser 20 is provided with a limiting connector 22, and the end of the limiting connector 22 is provided with a limiting lock head 221. When the upper riser 10 and the lower riser 20 are folded together, the limiting lock head 221 is connected in the limiting lock part 12, and the limiting screws 13 are rotated relative to each other, so that the two limiting screws 13 lock the limiting part 12. When the user rotates the upper upright tube 10 and the lower upright tube 20 to the folded state, the locking head 221 on the limiting post 22 can accurately enter the limiting lock part 12 of the upper upright tube 10. At this time, the user can rotate the limiting screw 13 so that the ends of the limiting screw 13 press against the outside of the limiting lock head 221, thereby clamping and fixing the limiting lock head 221 and preventing the frame from shaking or loosening after folding. When the user needs to unfold the frame, he only needs to rotate the limiting screw 13 in the opposite direction to loosen the limiting lock head 221, thereby releasing the limiting constraint on the limiting post 22, allowing the upper upright tube 10 to rotate around the pivot to the unfolded position, and then locking is completed by the locking clip 32 at the front end and the positioning structure. The whole operation process is convenient and quick.

[0025] In summary, the upper riser 10 is connected to the upper end of the lower riser 20. The lower end of the upper riser 10 is provided with a first folding connecting end 11, and the upper end of the lower riser 20 is provided with a second folding connecting end 21. The first folding connecting end 11 and the second folding connecting end 21 are connected relative to each other. The rear ends of the first folding connecting end 11 and the rear ends of the second folding connecting end 21 are hinged together by a pivot. The front ends of the first folding connecting end 11 and the front ends of the second folding connecting end 21 are locked and fixed together by a locking component 30. The electric bicycle and bicycle folding locking device uses a pivot hinge structure between the first folding connection end and the second folding connection end to allow the upper upright tube to fold smoothly around the pivot, enabling the electric bicycle or bicycle to be quickly stored and easily carried and stored. The front locking component includes a locking clip, a locking clip, a locking stud, and a clip spring, which ensures that the upper and lower upright tubes are securely locked in the unfolded state, preventing loosening during riding or transportation, improving safety, and ensuring the stability and reliability of the device during long-term use while realizing the folding, unfolding, and locking functions.

Claims

1. A folding locking device for an electric bicycle and a bicycle, characterized in that, It includes an upper riser (10) and a lower riser (20). The upper riser (10) is connected to the upper end of the lower riser (20). The lower end of the upper riser (10) is provided with a first folding connection end (11), and the upper end of the lower riser (20) is provided with a second folding connection end (21). The first folding connection end (11) and the second folding connection end (21) are connected relative to each other. The rear end of the first folding connection end (11) and the rear end of the second folding connection end (21) are connected by a pivot. The front end of the first folding connection end (11) and the front end of the second folding connection end (21) are locked and fixed by locking components (30).

2. The electric bicycle and bicycle folding locking device according to claim 1, characterized in that, The rear end of the first folding connecting end (11) is provided with a first movable through part (111), and the rear end of the second folding connecting end (21) is provided with a second movable through part (211). The first movable through part (111) and the second movable through part (211) are correspondingly arranged, and are hinged to the first movable through part (111) and the second movable through part (211) through a pivot.

3. The folding locking device for electric bicycle and bicycle according to claim 2, characterized in that, The first folding connecting end (11) has a first locking part (112) at its front end, and the second folding connecting end (21) has a second locking part (212) at its front end. The second locking part (212) has a connecting recess (213) inside. The lower end of the first locking part (112) has a connecting protrusion (113). The connecting protrusion (113) is embedded in the connecting recess (213). The middle part of the connecting protrusion (113) has a threaded fixing screw hole (114).

4. The folding locking device for electric bicycle and bicycle according to claim 3, characterized in that, The locking component (30) includes an operating handle (31) and a locking clip (32). The locking clip (32) is engaged with the outside of the first locking clip (112) and the second locking clip (212). A fixing through hole (321) is provided in the middle of the surface of the locking clip (32). The fixing through hole (321) is correspondingly provided with the fixing screw hole (114). One end of the operating handle (31) is provided with a threaded locking stud (311). The locking stud (311) passes through the fixing through hole (321) and the fixing screw hole (114) and is threadedly connected and fixed, thereby locking and fixing the first locking clip (112) and the second locking clip (212).

5. The folding locking device for electric bicycle and bicycle according to claim 4, characterized in that, The locking stud (311) is fitted with a retaining spring (33) on its outer side, and the retaining spring (33) is located between the locking retainer (32) and the connecting protrusion (113).

6. The folding locking device for electric bicycle and bicycle according to claim 5, wherein, The first locking part (112) has symmetrically recessed positioning grooves (115) on both sides of its surface, and the second locking part (212) has symmetrically protruding positioning protrusions (214) on both sides of its surface. The positioning protrusions (214) are positioned and connected to the positioning grooves (115).

7. The folding locking device for electric bicycle and bicycle according to claim 1, characterized in that, The upper riser (10) is provided with a limiting lock part (12) on the outside. The two sides of the limiting lock part (12) are connected to limiting screws (13). The lower riser (20) is provided with a limiting connector (22) on the outside. The end of the limiting connector (22) is provided with a limiting lock head (221). When the upper riser (10) and the lower riser (20) are rotated to the folded state, the limiting lock head (221) on the limiting connector (22) enters the limiting lock part (12). By rotating the limiting screw (13), the ends of the limiting screw (13) are pressed against the outside of the limiting lock head (221) to achieve clamping and fixing of the limiting lock head (221).

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