Battery double-spring-bolt structure of electric bicycle

Abstract

The utility model relates to a battery double-spring-bolt structure of an electric bicycle, and belongs to the technical field of battery installation. The anti-theft lock comprises a lock shell, a lock cylinder, a first spring bolt and a second spring bolt, a locking cavity used for installing the lock cylinder, the first spring bolt and the second spring bolt is formed in the lock shell, and a locking groove matched with the first spring bolt and the second spring bolt is formed in a battery box, and is characterized in that the lock cylinder is provided with a first locking block installed on the first spring bolt in a limiting mode, and the lock cylinder is provided with a second locking block installed on the second spring bolt in a limiting mode. The lock cylinder is rotated to drive the first spring bolt to stretch out and draw back, a second lock block matched with the second spring bolt in an abutting mode is arranged at the position, on one side of the first lock block, of the lock cylinder, and the lock cylinder is pushed to drive the second spring bolt to stretch out and draw back. The disassembly and assembly efficiency of the battery box is improved, and meanwhile the anti-theft effect is ideal.

Description

Technical Field

[0001] The present application relates to an electric bicycle, and in particular to a battery double-lock tongue structure of the electric bicycle. Background Art

[0002] An electric bicycle is a new type of transportation vehicle that uses batteries as auxiliary energy and is based on an ordinary bicycle and is equipped with a motor, controller, battery, handlebars and other operating components and a display instrument system. An electric bicycle provides riders with extra power, making riding easier and more enjoyable.

[0003] The Chinese utility model patent with publication number CN216690689U discloses a battery box locking structure, which includes a battery box and a frame lower tube. The frame lower tube has a mounting groove for installing the battery box. A double lock tongue structure for fixing the battery box is provided at one end of the frame lower tube in the mounting groove, and a plug structure that can be electrically connected to the battery box is provided at the other end. The double lock tongue structure includes a lock shell, a lock core, a double lock tongue, a dial and a reset spring. A lock core cavity and a double lock tongue slideway are formed in the lock shell. The lock core cavity is connected to the double lock tongue slideway and forms an "L"-shaped cavity as a whole. The double lock tongue is two separate lock tongues, and the two lock tongues are connected by a dial. The lock core and the double lock tongue are respectively arranged in the lock core cavity and the double lock tongue slideway, the lock core conflicts with the double lock tongue, and the lock core is rotated to drive the two lock tongues to extend and retract respectively.

[0004] When removing the battery box, first use the key to drive the lock cylinder to rotate clockwise, the dial drives one of the lock tongues to disengage from the battery box, release the key to reset the lock tongue, and then turn the lock cylinder counterclockwise to disengage the other lock tongue. The above disassembly operation requires turning the key twice, and the unlocking operation is relatively cumbersome. Utility Model Content

[0005] In order to improve the efficiency of rapid disassembly and assembly of a battery box and a frame, the present application provides a battery double-locking tongue structure for an electric bicycle.

[0006] The present application provides a battery double-lock tongue structure for an electric bicycle using the following technical solution:

[0007] A battery double lock tongue structure for an electric bicycle comprises a lock core, a first lock tongue, a second lock tongue and a lock housing, wherein the lock housing comprises a lock chamber for installing the lock core, the first lock tongue and the second lock tongue; the lock core is provided with a first lock block which is limitedly installed on the first lock tongue, and the lock core is rotated to drive the first lock tongue to extend and retract, the lock core is provided with a second lock block which abuts and cooperates with the second lock tongue on one side of the first lock block, and the lock core is pushed to drive the second lock tongue to extend and retract, and a battery box is provided with a locking groove which cooperates with the first lock tongue and the second lock tongue.

[0008] By adopting the above technical solution, in the structure where the battery box is placed at the bottom, the structure of the double lock tongues allows for a buffer time during the unlocking process, thereby preventing the battery box from falling directly from the frame when being disassembled and unlocked. At the same time, the unlocking operation is relatively simple, and the first lock tongue and the second lock tongue are unlocked by rotating the lock cylinder and pushing the lock cylinder respectively. Compared to the need to rotate twice in opposite directions, the unlocking structure of the present application is more stable in operation and less difficult to process.

[0009] Optionally, the locking chamber includes a lock core cavity for installing the lock core, a first slideway for sliding the first lock tongue, and a second slideway for sliding the second lock tongue, and the lock core rotates circumferentially and moves axially in the lock core cavity.

[0010] By adopting the above technical scheme, the specific composition of the locking chamber is disclosed, the lock core is installed in the lock core cavity, the first lock tongue and the second lock tongue are installed in the first slideway and the second slideway respectively, when unlocking, the lock core is rotated to drive the first lock tongue to retract into the first slideway, completing the first step of unlocking, and then the lock core is pushed to drive the second lock tongue to retract into the second slideway, completing the second step of unlocking.

[0011] Optionally, the double lock tongue structure also includes a return spring, which includes a first spring arranged on the first slide and a second spring arranged on the second slide, the two ends of the first spring are respectively connected to the first lock tongue and the bottom wall of the first slide, the two ends of the second spring are respectively connected to the second lock tongue and the bottom wall of the second slide, and the return spring drives both lock tongues to have a tendency to slide out of the locking chamber.

[0012] By adopting the above technical solution and setting the reset spring, the first lock tongue and the second lock tongue have a tendency to always move toward the battery box, and the locking effect is more ideal. At the same time, after completing the two unlocking steps, the reset spring can reset the two lock tongues to their initial state.

[0013] Optionally, a limit ring groove is circumferentially provided on the side wall of the lock core, a limit piece for limiting the rotation of the lock core is arranged in the limit ring groove of the lock housing, and an axial limit groove corresponding to the limit piece is provided on the side wall of the lock core along the axial direction.

[0014] By adopting the above technical solution, the setting of the limit member makes it possible for the limit member and the axial limit groove of the lock core to slide and cooperate when the lock core is pushed to unlock the second lock tongue, so that the lock core can only move along the axial direction, and thus the lock core cannot rotate when it is pushed, thereby limiting the probability of rotation when the lock core is pushed and axial movement when the lock core is rotated, thereby ensuring the independence of the unlocking operation of the two lock tongues.

[0015] Optionally, the first locking block is provided with a first locking groove for the first locking block to be arranged, the first locking block is adapted to the first locking groove, and the first locking block can slide in the first locking groove along a pushing direction.

[0016] By adopting the above technical solution, the first locking block is limitedly installed in the first locking groove. Rotating the lock core can make the first locking block drive the first lock tongue to move toward the bottom of the first slide. When the lock core is pushed to unlock the second lock tongue, the axial movement of the lock core will drive the first locking block to move axially. The setting of the first lock groove enables the first locking block to achieve axial movement.

[0017] Optionally, the second locking tongue has a second locking groove for the second locking block to slide, the second locking block has a first action inclined surface abutting against an inner wall of the second locking groove, and the second locking groove has a second action inclined surface cooperating and abutting against the first action inclined surface.

[0018] By adopting the above technical solution, when the user pushes the lock core, the second lock block moves in the direction away from the lock core. Under the abutment of the first acting inclined surface and the second acting inclined surface, the second lock tongue moves toward the bottom wall of the second slide, thereby achieving the unlocking of the second lock tongue and the battery box. The operation is simple and labor-saving.

[0019] Optionally, a side wall of the lock core is provided with a fixed limit block for limiting the rotation direction, and the lock housing is provided with a limiting portion abutting against the fixed limit block in the lock core cavity.

[0020] By adopting the above technical solution, the abutment setting of the fixed limit block and the limit part can limit the rotation direction of the lock core, so that the lock core can only rotate in the unlocking direction and cannot rotate in the opposite direction, thereby improving the unlocking efficiency.

[0021] Optionally, the battery box forms a limit stop at one end of the locking groove, and the first locking tongue is located on a side of the second locking tongue close to the limit stop. When the battery box is installed on the frame, the limit stop abuts against the first locking tongue.

[0022] By adopting the above technical scheme, the positional relationship of the two lock tongues in the locking groove is limited. After the battery box is fully buckled, the limit block abuts against the first lock tongue. The first lock tongue is the first lock, and the second lock tongue is the second lock. The user first unlocks the first lock tongue by turning the lock cylinder with the key. After the first lock tongue is disengaged from the locking groove, the limit block abuts against the second lock tongue. The key is released to reset the lock cylinder, and then the lock cylinder is pushed to disengage the second lock tongue from the locking groove. The operation is reasonable and the anti-theft effect is good.

[0023] Optionally, the first locking tongue and the second locking tongue are both provided with a first guiding inclined surface at the end facing the locking groove.

[0024] By adopting the above technical solution, the setting of the guiding inclined surfaces on the first locking tongue and the second locking tongue makes it possible for the user to only insert the battery box into the frame when installing the battery box, and the ends of the battery box will abut against the two guiding inclined surfaces in turn. The first locking tongue and the second locking tongue will move into the slide under the action of the guiding inclined surfaces to achieve the snap-fit ​​installation of the battery box, which is more convenient and labor-saving.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The battery double lock tongue structure of the present application can unlock the first lock tongue and the second lock tongue by rotating the lock core and pushing the lock core respectively. The unlocking structure is simple to operate, has low processing difficulty, and has an ideal anti-theft effect;

[0027] 2. The present application ensures the independence of the unlocking operation of the two lock tongues by setting the limiter;

[0028] 3. The present application can limit the rotation direction of the lock core through the cooperation of the fixed limit block and the limit part, so that the lock core can only rotate in the unlocking direction and cannot rotate in the opposite direction, thereby improving the unlocking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the explosion of the frame and battery box of an embodiment of the present application.

[0030] Figure 2 It is an exploded schematic diagram of the double lock tongue structure of an embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of the cooperation between the lock core and the lock tongue in the embodiment of the present application.

[0032] Figure 4 It is a cross-sectional view of the abutment between the fixed limit block and the limit portion in the embodiment of the present application.

[0033] Figure 5 It is a schematic diagram of the coordination between the limiter and the lock core in the embodiment of the present application.

[0034] Figure 6 It is a cross-sectional view of the coordination between the embodiment of the present application and the battery box.

[0035] Explanation of the accompanying drawings: 1. lock housing; 11. locking chamber; 111. lock core chamber; 112. first slide; 113. second slide; 12. limiting portion; 13. limiting hole; 14. annular portion; 15. limiting gap; 2. lock core; 21. jack; 22. first locking block; 23. second locking block; 231. abutment column; 232. push block; 2321. first action inclined surface; 24. abutment block; 25. fixed limit block; 26. limiting ring groove; 27. axial limiting groove; 3. first lock tongue; 31. first lock groove; 32. first guide inclined surface; 4. second lock tongue; 41. second lock groove; 411. second action inclined surface; 5. reset spring; 51. first spring; 52. second spring; 6. limiting member; 7. battery box; 71. locking groove; 72. limiting block; 721. second guide inclined surface. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses a battery double-locking tongue structure for an electric bicycle.

[0038] Reference Figure 1 and Figure 2 A battery double-lock tongue structure for an electric bicycle includes a lock housing 1, a lock core 2, a first lock tongue 3, a second lock tongue 4, a return spring 5, and a stopper 6. The lock housing 1 has a lock chamber 11, which specifically includes a lock core cavity 111 for installing the lock core 2, a first slideway 112 for slidingly arranging the first lock tongue 3, and a second slideway 113 for slidingly arranging the second lock tongue 4.

[0039] Reference Figure 2 and Figure 3 The lock core 2 is cylindrical as a whole, with a key insertion hole 21 at one end of the lock core 2, and a first lock block 22 and a second lock block 23 are respectively arranged on both sides of the end surface of the other end. The first lock tongue 3 and the second lock tongue 4 are both in the shape of strips, and the extension direction is perpendicular to the axial direction of the lock core 2, that is, the chamber formed by the lock core cavity 111 and the two slideways is L-shaped as a whole.

[0040] The first lock block 22 and the lock core 2 are integrally arranged. In other embodiments, the first lock block 22 can be fixedly connected to the lock core 2 by welding, bolts, etc. The side wall of the first lock tongue 3 has a first lock groove 31 for installing the first lock block 22, and the first lock housing 1 can slide along the axis direction of the lock core 2 in the first lock groove 31.

[0041] The second lock block 23 includes an abutment column 231 that is rotatably abutted with the lock core 2 and a push block 232 that is limitedly arranged on the second lock tongue 4. The lock core 2 is integrally provided with an abutment block 24 for the abutment column 231 to abut on a side away from the first lock block 22. The second lock tongue 4 has a second lock groove 41 that penetrates through the two side walls and is provided for the push block 232 to be installed. The second lock groove 41 is arranged to extend along the length direction of the second lock tongue 4. The push block 232 is a wedge-shaped block as a whole. The push block 232 has a first action inclined surface 2321 on a side away from the locking groove 71, and the side wall of the second lock groove 41 has a second action inclined surface 411 that abuts and cooperates with the first action inclined surface 2321.

[0042] Reference Figure 3 and Figure 4 The lock core 2 is integrally provided with a fixed limit block 25 at the end away from the two lock tongues, and the fixed limit block 25 is arranged corresponding to the second lock shell 1. The lock shell 1 has a limiting portion 12 for the fixed limit block 25 to abut against in the lock core cavity 111, and the limiting portion 12 is arranged along the circumferential direction to limit the rotation direction of the lock core 2. Among them, there is an annular portion 14 corresponding to the limiting portion 12 in the locking chamber, and the axial length of the annular portion 14 is smaller than the limiting portion 12, that is, when the lock core 2 rotates, the fixed limit block 25 does not abut against the annular portion 14. A limiting gap 15 is formed between the limiting portion 12 and the annular portion 14 for the first lock block 22 and the abutting block 24 to be inserted.

[0043] Reference Figure 2 and Figure 5 The lock core 2 has a limiting annular groove 26 circumferentially formed on the side wall away from the fixed limiting block 25. The lock housing 1 has a limiting hole 13 connected to the locking chamber 11 and corresponding to the limiting annular groove 26. The limiting member 6 is inserted into the limiting annular groove 26 along the limiting hole 13. In this embodiment, the limiting member 6 is a screw member, and the limiting member 6 and the limiting hole 13 are threadedly matched and fixed.

[0044] The side wall of the lock core 2 has an axial limit groove 27 along the axial direction corresponding to the limit member 6. The axial limit groove 27 and the limit member 6 cooperate to limit the rotation of the lock core 2 when it is pushed, so that when the lock core 2 is pushed, the limit member 6 is inserted into the axial limit groove 27, so that the lock core 2 cannot rotate circumferentially.

[0045] Reference Figure 6 The return spring 5 includes a first spring 51 and a second spring 52. The first spring 51 is arranged on the first slideway 112, and its two ends are respectively fixedly connected to the bottom wall of the first slideway 112 and the first locking tongue 3. The second spring 52 is arranged on the second slideway 113, and its two ends are respectively fixedly connected to the bottom wall of the second slideway 113 and the second locking tongue 4. The return spring 5 can make the first locking tongue 3 and the second locking tongue 4 have a tendency to always move toward the locking groove 71.

[0046] When the lock core 2 is rotated, the lock core 2 drives the first lock block 22 to rotate synchronously, and the first lock block 22 drives the first lock tongue 3 to move toward the bottom wall of the first slide 112 to achieve the separation of the first lock tongue 3 and the locking groove 71. The first lock groove 31 runs through the two side walls of the length direction of the first lock tongue 3; when the lock core 2 is pushed, the lock core 2 drives the second lock block 23 to move along the axis direction of the lock core 2, and the first action inclined surface 2321 and the second action inclined surface 411 are abutted and matched, so that the second lock tongue 4 moves toward the bottom wall of the second slide 113 to achieve the separation of the second lock tongue 4 and the locking groove 71.

[0047] Reference Figure 1 and Figure 6 A limited stopper 72 is formed on one side of the battery box 7 in the locking groove 71. When the battery box 7 and the double lock tongue structure are locked, the first lock tongue 3 is located on the side of the second lock tongue 4 close to the limited stopper 72, and the first lock tongue 3 and the limited stopper 72 form a first locking structure. After the first lock tongue 3 is disengaged, the second lock tongue 4 and the limited stopper 72 abut to form a second locking structure.

[0048] In order to facilitate the snap-fit ​​installation of the battery box 7, the ends of the first locking tongue 3 and the second locking tongue 4 are provided with a first guiding inclined surface 32 on the side away from the snap-fit ​​groove 81, and the limit block 72 is provided with a second guiding inclined surface 721 on the side facing the snap-fit ​​groove 81, so that the battery box 7 can be directly snap-fitted and installed on the frame 8, which is more convenient to install.

[0049] The implementation principle of the double locking tongue structure of the battery of an electric bicycle in the embodiment of the present application is: when installing the battery box 7, the battery box is directly inserted into the frame, and the double locking tongue structure and the locking groove 71 are automatically locked and matched.

[0050] When disassembly is required, first rotate the lock core 2 so that the first lock tongue 3 shrinks toward the first slide 112, and move the battery box so that the first lock tongue 3 disengages from the locking groove 71; after the first unlocking, the limit stop block 72 and the second lock tongue 4 abut against each other; release the key to reset the lock core 2 under the action of the first spring 51, so that the limit member 6 and the axial limit groove 27 are in corresponding states; push the lock core 2 to shrink the second lock tongue 4 toward the second slide 113, complete the second unlocking, and remove the battery box 7 to complete the disengagement.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A battery double-lock tongue structure for an electric bicycle, comprising a lock housing (1), a lock core (2), a first lock tongue (3) and a second lock tongue (4), wherein the lock housing (1) has a locking chamber (11) for installing the lock core (2), the first lock tongue (3) and the second lock tongue (4), and a battery box (7) has a locking groove (71) for matching with the first lock tongue (3) and the second lock tongue (4), characterized in that: The lock core (2) is provided with a first locking block (22) which is limitedly mounted on the first locking tongue (3); the lock core (2) is rotated to drive the first locking tongue (3) to extend and retract; the lock core (2) is provided with a second locking block (23) which abuts and cooperates with the second locking tongue (4) on one side of the first locking block (22); the lock core (2) is pushed to drive the second locking tongue (4) to extend and retract.

2. The battery double-lock tongue structure of an electric bicycle according to claim 1, characterized in that: The locking chamber (11) comprises a lock core chamber (111) for mounting the lock core (2), a first slideway (112) for sliding the first lock tongue (3), and a second slideway (113) for sliding the second lock tongue (4); the lock core (2) rotates circumferentially and moves axially in the lock core chamber (111).

3. The battery double-lock tongue structure of an electric bicycle according to claim 2, characterized in that: The double-locking tongue structure further comprises a return spring (5), the return spring (5) comprising a first spring (51) arranged on the first slideway (112) and a second spring (52) arranged on the second slideway (113), the two ends of the first spring (51) being respectively connected to the first locking tongue (3) and the bottom wall of the first slideway (112), the two ends of the second spring (52) being respectively connected to the second locking tongue (4) and the bottom wall of the second slideway (113), the return spring (5) driving the two locking tongues to have a tendency to slide out of the locking chamber (11).

4. The battery double-locking tongue structure of an electric bicycle according to claim 1, characterized in that: The lock core (2) has a circumferentially disposed limit ring groove (26) on the side wall thereof, a limit piece (6) for limiting the rotation of the lock core (2) is arranged on the lock housing (1) in the limit ring groove (26), and an axial limit groove (27) corresponding to the limit piece (6) is disposed on the side wall of the lock core (2) along the axial direction.

5. The battery double-locking tongue structure of an electric bicycle according to claim 4, characterized in that: The first locking block (22) is provided with a first locking groove (31) for the first locking block (22) to be arranged, the first locking block (22) is adapted to the first locking groove (31), and the first locking block (22) can slide in the first locking groove (31) along a pushing direction.

6. The battery double-locking tongue structure of an electric bicycle according to claim 4, characterized in that: The second locking tongue (4) has a second locking groove (41) for the second locking block (23) to slide, the second locking block (23) has a first action inclined surface (2321) abutting against an inner wall of the second locking groove (41), and the second locking groove (41) has a second action inclined surface (411) cooperating with and abutting against the first action inclined surface (2321).

7. The battery double-lock tongue structure of an electric bicycle according to claim 2, characterized in that: The side wall of the lock core (2) is provided with a fixed limit block (25) for limiting the rotation direction, and the lock housing (1) is provided with a limit portion (12) abutting against the fixed limit block (25) in the lock core cavity (111).

8. The battery double-locking tongue structure of an electric bicycle according to claim 1, characterized in that: The battery box (7) forms a limit stopper (72) at one end of the locking groove (71); the first locking tongue (3) is located on a side of the second locking tongue (4) close to the limit stopper (72); when the battery box (7) is mounted on the vehicle frame, the limit stopper (72) abuts against the first locking tongue (3).

9. The battery double-lock tongue structure of an electric bicycle according to claim 1, characterized in that: The first locking tongue (3) and the second locking tongue (4) are both provided with a first guiding inclined surface (32) at the end facing the locking groove (71).

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