Secondary lock structure of hidden battery

Abstract

The utility model relates to the technical field of lithium battery boxes, in particular to a secondary lock structure of a hidden battery. A secondary lock structure of a hidden battery comprises a battery box and a battery box end cover, and is characterized in that one side of the battery box is connected with one end of the battery box end cover through a bolt, the other end of the battery box end cover is connected with a primary lock structure, and a secondary lock structure is arranged on one side of the primary lock structure; and a spring is arranged between the upper part of the battery box end cover and the primary lock structure. Compared with the prior art, according to the secondary lock structure of the hidden type battery, through two-time locking of the primary lock and the secondary lock assembly, the battery box is prevented from falling, the accident possibility is reduced, the reliability of an electric bicycle is improved, and the use safety performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery boxes, and particularly to a secondary lock structure for a hidden battery. Background Art

[0002] At present, some electric bicycles lock the battery box in the bicycle tube through a battery box lock. However, during the driving of the electric bicycle, due to various reasons such as bumps or improper installation, the battery box lock may fail and the battery may accidentally pop out, causing certain potential safety hazards. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a secondary lock structure for a hidden battery. Through two lockings of the primary lock and the secondary lock assembly, it can prevent the battery box from falling, reduce the possibility of accidents, improve the reliability of the electric bicycle, and enhance the safety performance during use.

[0004] To achieve the above object, a secondary lock structure for a hidden battery is designed, which includes a battery box and a battery box end cover. The characteristics are as follows: One side of the battery box is connected to one end of the battery box end cover through bolts, and the other end of the battery box end cover is connected to a primary lock structure. A secondary lock structure is provided on one side of the primary lock structure; A spring is provided between the upper part of the battery box end cover and the primary lock structure.

[0005] One end of the spring abuts against the upper part of the front end face of the battery box end cover, and the other end of the spring abuts against the upper part of the rear end face of the primary lock structure.

[0006] The primary lock structure is in an "n" shape. A tongue groove is provided at the upper part of the front end face of the primary lock structure. The lower ends on both sides of the primary lock structure are respectively connected to the left and right sides of the lower part of the battery box end cover through rotating shafts.

[0007] The secondary lock structure includes a front fixing seat, a middle fixing seat, a rear fixing seat, a fixing seat connection, and a bolt. The front and rear ends of the middle fixing seat are respectively connected to the front fixing seat and the rear fixing seat, and the lower parts of the front fixing seat, the middle fixing seat, and the rear fixing seat are connected through the bolt; The top of the middle fixing seat is connected to a fixing seat tongue, and the bottom of the middle fixing seat is connected to a fixing seat connecting piece.

[0008] The fixing seat tongue at the top of the middle fixing seat is in a "7" - shaped structure.

[0009] The fixing seat connecting piece is in an L - shaped sheet structure. One end of the fixing seat connecting piece is located at the bottom side of one side of the battery box, and the other end of the fixing seat connecting piece is connected to the bottom of the middle fixing seat through a screw.

[0010] The convex part of the fixed seat tongue is matched with the bottom end face of the tongue groove of the primary lock structure.

[0011] Compared with the prior art, the present utility model provides a secondary lock structure for a hidden battery. Through two lockings of the primary lock and the secondary lock assembly, it prevents the battery box from falling, reduces the possibility of accidents, improves the reliability of the electric bicycle, and enhances the safety performance during use. Brief Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the present utility model.

[0013] Figure 2 It is an exploded view of the structure of the present utility model.

[0014] Figures 3 to 6 It is a schematic diagram of the disassembly process of the present utility model.

[0015] See Figures 1 to 6 , 1 is the battery box, 2 is the bolt, 3 is the battery box end cover, 4 is the spring, 5 is the primary lock structure, 5-1 is the tongue groove, 6 is the rear end fixed seat, 7 is the middle fixed seat, 7-1 is the fixed seat tongue, 8 is the front end fixed seat, 9 is the fixed seat connecting piece, 10 is the pin, and 11 is the screw. Detailed Embodiment

[0016] The following further describes the present utility model with reference to the drawings.

[0017] As Figure 1 , Figure 2 shown, one side of the battery box 1 is connected to one end of the battery box end cover 3 through the bolt 2, and the other end of the battery box end cover 3 is connected to the primary lock structure 5. A secondary lock structure is provided on one side of the primary lock structure 5; a spring 4 is provided between the upper part of the battery box end cover 3 and the primary lock structure 5.

[0018] One end of the spring 4 abuts against the upper position of the front end face of the battery box end cover 3, and the other end of the spring 4 abuts against the upper position of the rear end face of the primary lock structure 5.

[0019] The primary lock structure 5 is in an "n" shape. A tongue groove 5-1 is provided at the upper position of the front end face of the primary lock structure 5. The lower ends on both sides of the primary lock structure 5 are respectively connected to the lower left and right sides of the battery box end cover 3 by rotating shafts.

[0020] The secondary lock structure includes a front end fixed seat, a middle fixed seat, a rear end fixed seat, a fixed seat connection, and a pin. The front and rear ends of the middle fixed seat 7 are respectively connected to the front end fixed seat 8 and the rear end fixed seat 6, and the lower parts of the front end fixed seat 8, the middle fixed seat 7, and the rear end fixed seat 6 are connected by the pin 10; the top of the middle fixed seat 7 is connected to the fixed seat tongue 7-1, and the bottom of the middle fixed seat 7 is connected to the fixed seat connecting piece 9.

[0021] The fixing seat tongue 7-1 at the top of the middle fixing seat 7 is in a "7" - shaped structure.

[0022] The fixing seat connecting piece 9 is in an L - shaped sheet structure. One end of the fixing seat connecting piece 9 is located at the bottom side position of the battery box 1, and the other end of the fixing seat connecting piece 9 is connected to the bottom of the middle fixing seat 7 by a screw 11.

[0023] The protruding part of the fixing seat tongue 7-1 cooperates with the bottom end face of the tongue groove 5-1 of the primary locking structure 5.

[0024] As Figures 3 to 6 shown, the working principle of the present utility model is as follows:

[0025] 1. As Figure 3 shown, when the primary locking structure 5 is opened, the battery pops out under the action of gravity and elasticity. At this time, under the action of the spring 4, the secondary locking structure is pushed outwards.

[0026] 2. As Figure 4 shown, due to the fixing seat tongue 7-1 of the middle fixing seat 7, the fixing seat tongue 7-1 thus catches the bottom of the tongue groove 5-1 of the primary locking structure 5 to prevent the battery box 1 from dropping.

[0027] 3. As Figure 5 , Figure 6 shown, under the action of an external force, the secondary locking structure moves inwards, disengaging from the fixing seat tongue 7-1 and the primary locking structure 5, thus smoothly removing the battery box 1.

Claims

1. A secondary lock structure for a hidden battery, comprising a battery box and a battery box end cover, characterized in that: One side of the battery box (1) is connected to one end of a battery box end cover (3) via a bolt (2); the other end of the battery box end cover (3) is connected to a primary lock structure (5); a secondary lock structure is provided on one side of the primary lock structure (5); and a spring (4) is provided between the upper part of the battery box end cover (3) and the primary lock structure (5).

2. A secondary lock structure for a hidden battery according to claim 1, characterized in that: One end of the spring (4) abuts against the upper position of the front end surface of the battery box end cover (3), and the other end of the spring (4) abuts against the upper position of the rear end surface of the primary lock structure (5).

3. A secondary lock structure for a hidden battery according to claim 1 or 2, characterized in that: The primary lock structure (5) is an "n"-shaped structure, and a tongue groove (5-1) is provided at the upper position of the front end surface of the primary lock structure (5). Both sides of the lower end of the primary lock structure (5) are connected to the left and right sides of the lower part of the battery box end cover (3) by a rotating shaft.

4. The secondary lock structure of a hidden battery according to claim 1, characterized in that: The secondary lock structure comprises a front-end fixing seat, an intermediate fixing seat, a rear-end fixing seat, a fixing seat connection, and a latch. The front and rear ends of the intermediate fixing seat (7) are respectively connected to the front-end fixing seat (8) and the rear-end fixing seat (6), and the lower parts of the front-end fixing seat (8), the intermediate fixing seat (7), and the rear-end fixing seat (6) are connected via a latch (10); the top of the intermediate fixing seat (7) is connected to a fixing seat tongue (7-1), and the bottom of the intermediate fixing seat (7) is connected to a fixing seat connecting piece (9).

5. The secondary lock structure of a hidden battery according to claim 4, characterized in that: The fixing seat tongue (7-1) at the top of the middle fixing seat (7) is in a "7"-shaped structure.

6. A secondary lock structure for a hidden battery according to claim 4, characterized in that: The fixing seat connecting piece (9) is an L-shaped sheet structure, one end of the fixing seat connecting piece (9) is located at the bottom of one side of the battery box (1), and the other end of the fixing seat connecting piece (9) is connected to the bottom of the middle fixing seat (7) by means of screws (11).

7. The secondary lock structure of a hidden battery according to claim 4, characterized in that: The raised portion of the fixing seat tongue (7-1) matches the bottom end surface of the tongue groove (5-1) of the primary lock structure (5).

Images