Car trunk lock

Abstract

The utility model relates to the technical field of trunk locks, in particular to a trunk lock for an automobile, comprising a lock seat, a surface of the lock seat being connected with an outer lock buckle through a rotating shaft, an outer lock reset spring for pulling the outer lock buckle to lock being connected between the lock seat and the outer lock buckle, an inner lock buckle and an inner and outer lock buckle connecting piece being arranged on the back side of the lock seat through a rotating shaft, an inner lock reset spring for auxiliary locking being connected between the inner lock buckle and the inner and outer lock buckle connecting piece, the lock seat and the outer lock buckle forming a first locking structure under the elastic force of the outer lock reset spring, the inner lock buckle and the inner and outer lock buckle connecting piece forming a synchronous second locking structure under the elastic force of the inner lock reset spring, a movable pressing piece and the outer lock buckle share the same set of rotating shafts, the movable pressing piece and the outer lock buckle are linked together, when the outer lock groove on the side of the outer lock buckle is released from the connection with the lock buckle, the movable pressing piece presses down the inner lock buckle, and the inner lock buckle rotated under the downward pressure is synchronously released from the connection with the lock buckle, thereby completing synchronous locking and unlocking.

Description

Technical Field

[0001] The utility model relates to the technical field of trunk locks, in particular to a trunk lock for an automobile. Background Art

[0002] The trunk of a car is located at the rear of the car. It is normally opened and closed through a connection structure. When it is closed, the trunk lock locks the trunk in the closed state.

[0003] At present, the structure of the commonly used mechanical trunk lock is relatively simple, and usually adopts a single-layer avoidance locking structure. Although the single-layer locking structure can achieve a stable locking state, there is redundancy in the locking space during actual use, and it is necessary to control the size of the redundancy by adjusting the setting position of the lock. When the adjustment is not in place, the locking state will be slightly loose, thereby generating noise. For this reason, we propose a car trunk lock. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a car trunk lock. The currently used single-layer locking structure generally has a problem of redundancy in actual use. When the size is not adjusted properly, the locking state may be slightly loose, thereby generating noise.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a car trunk lock, comprising a lock seat, the surface of the lock seat is connected to an outer lock buckle through a rotating shaft, an outer lock reset spring for pulling the outer lock buckle to lock is connected between the lock seat and the outer lock buckle, an inner lock buckle and an inner and outer lock buckle connecting piece are arranged on the back of the lock seat through a rotating shaft, and an inner lock reset spring for auxiliary locking is connected between the inner lock buckle and the inner and outer lock buckle connecting piece;

[0006] The lock seat and the outer lock buckle form a first locking structure under the elastic force of the outer lock reset spring, and the inner lock buckle and the inner and outer lock buckle connecting pieces form a synchronous second locking structure under the elastic force of the inner lock reset spring.

[0007] Preferably, the lock seat includes a base, a locking port and a connecting end, the locking port is opened at a middle position between the bottom of the base, the connecting end is formed on one side of the base, and the base is connected to one end of the external lock reset spring through the connecting end.

[0008] Preferably, the lock seat further comprises a limiting protrusion, and the limiting protrusion is provided with two groups in total. The two groups of limiting protrusions are staggered, and the two groups of limiting protrusions staggered form a space for the outer lock buckle to move.

[0009] Preferably, the lock seat further comprises a base connecting piece, the base connecting piece is formed on both sides of the base, and a through hole is opened at the center position of the base connecting piece.

[0010] Preferably, the external locking buckle includes an external locking plate, an external locking groove and an external locking plate connecting plate, the external locking plate is arranged on the base surface through a rotating shaft, and the activity space of the external locking plate is limited to the activity space formed by two groups of limiting protrusions, the external locking groove is formed on one side of the external locking plate, the external locking plate connecting plate is formed at the end of the external locking plate, and the external locking plate is connected to the other end of the external lock reset spring through the external locking plate connecting plate.

[0011] Preferably, the inner lock buckle includes an inner lock plate, an inner lock groove and an inner lock plate connecting plate, the inner lock plate is connected to the back of the base through a rotating shaft, the inner lock groove is opened at the position of the inner lock plate corresponding to the lock mouth, and the inner lock plate connecting plate is formed at the top of the inner lock plate and connected to one end of the inner lock reset spring.

[0012] Preferably, the inner and outer locking connecting plates include a movable pressing plate and a movable pressing plate connecting plate. The movable pressing plate is rotatably connected to the back side of the base through a rotating shaft, one side of the movable pressing plate is in contact with the inner locking groove, and the movable pressing plate connecting plate is molded on the surface of the movable pressing plate. The movable pressing plate connecting plate is connected to the other end of the inner lock reset spring.

[0013] Preferably, the movable pressing plate and the outer locking plate share the same set of rotating shafts, and the movable pressing plate and the outer locking plate are linked.

[0014] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0015] 1. In the utility model, the lock seat and the outer lock buckle cooperate to form a locking structure under the pull of the outer lock reset spring, and the inner and outer lock buckle connecting pieces that rotate synchronously with the outer lock buckle cooperate with the inner lock buckle to form a secondary locking structure. The double locking structure forms a dynamic locking space to avoid the problem of redundant gaps and locking noise.

[0016] 2. In the utility model, the movable pressing plate and the outer locking plate share the same set of rotating shafts, and the movable pressing plate and the outer locking plate are linked together. When the outer locking groove on the outer locking plate side is released from the connection with the lock buckle, the movable pressing plate presses down the inner locking plate, and the inner locking plate rotated by the downward pressure is synchronously released from the connection with the lock buckle, thereby completing synchronous locking and unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional side view structural schematic diagram of the utility model;

[0019] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the outer locking piece of the utility model.

[0021] Wherein: 1. lock seat; 11. base; 12. lock mouth; 13. connection end; 14. limit protrusion; 15. base connecting piece; 2. outer lock buckle; 21. outer lock piece; 22. outer lock groove; 23. outer lock piece connecting piece; 3. outer lock reset spring; 4. inner lock buckle; 41. inner lock piece; 42. inner lock groove; 43. inner lock piece connecting piece; 5. inner and outer lock buckle connecting piece; 51. movable pressure piece; 52. movable pressure piece connecting piece; 6. inner lock reset spring. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0023] Example:

[0024] See also Figure 1 - Figure 4 A car trunk lock comprises a lock seat 1, the surface of the lock seat 1 is connected with an outer lock buckle 2 through a rotating shaft, an outer lock reset spring 3 for pulling the outer lock buckle 2 to lock is connected between the lock seat 1 and the outer lock buckle 2, an inner lock buckle 4 and an inner and outer lock buckle connecting piece 5 are arranged on the back of the lock seat 1 through a rotating shaft, and an inner lock reset spring 6 for auxiliary locking is connected between the inner lock buckle 4 and the inner and outer lock buckle connecting piece 5;

[0025] The lock seat 1 and the outer lock buckle 2 cooperate to form a locking structure under the pull of the outer lock reset spring 3, and the inner and outer lock buckle connecting pieces 5 that rotate synchronously with the outer lock buckle 2 cooperate with the inner lock buckle 4 to form a secondary locking structure.

[0026] The lock base 1 includes a base 11, a lock port 12 and a connecting end 13. The lock port 12 is opened at the middle position of the bottom of the base 11, and the connecting end 13 is formed on one side of the base 11. The base 11 is connected to one end of the outer lock reset spring 3 through the connecting end 13. The lock base 1 also includes a limiting protrusion 14. The limiting protrusion 14 is provided with two groups. The two groups of limiting protrusions 14 are staggered. The two groups of limiting protrusions 14 arranged staggered form a space for the outer lock buckle 2 to move. The activity space formed by the two groups of limiting protrusions 14 corresponds to the maximum movable position and the fixed setting position of the outer lock buckle 2 respectively. When the outer lock buckle 2 is located at the fixed setting position, it is in a locked state. When the outer lock buckle 2 is located at the maximum movable position, it is in an unlocked state. The lock base 1 also includes a base connecting piece 15. The base connecting piece 15 is formed on both sides of the base 11, and a through hole is provided at the center position of the base connecting piece 15. Through the cooperation of the through hole and the base connecting piece 15, the base 11 can be conveniently fixed to the rear of the vehicle.

[0027] The outer lock buckle 2 includes an outer lock piece 21, an outer lock groove 22 and an outer lock piece connecting piece 23. The outer lock piece 21 is arranged on the surface of the base 11 through a rotating shaft, and the activity space of the outer lock piece 21 is limited to the activity space formed by the two groups of limiting protrusions 14. The outer lock groove 22 is formed on one side of the outer lock piece 21, and the outer lock piece connecting piece 23 is formed at the end of the outer lock piece 21. The outer lock piece 21 is connected to the other end of the outer lock reset spring 3 through the outer lock piece connecting piece 23. The bottom of the outer lock piece 21 is in contact with the lock. When the lock is buckled, it will be deflected due to the hard resistance of the lock buckle. During the deflection process, the outer locking piece 21 will pull the outer locking reset spring 3 through the outer locking piece connecting piece 23 to stretch and deform the outer locking reset spring 3. When the lock buckle passes over the outer locking piece 21 and enters the lock mouth 12 and the outer locking groove 22, it no longer conflicts with the outer locking piece 21. At this time, the outer locking reset spring 3 contracts and resets. Under the elastic force of the outer locking reset spring 3, the outer locking groove 22 is reset. At this time, the outer locking piece 21 completes the locking with the lock mouth 12 through the outer locking groove 22.

[0028] The inner lock buckle 4 includes an inner lock plate 41, an inner lock groove 42 and an inner lock plate connecting plate 43. The inner lock plate 41 is connected to the back of the base 11 through a rotating shaft. The inner lock groove 42 is opened at the position of the inner lock plate 41 corresponding to the lock mouth 12. The inner lock plate connecting plate 43 is formed at the top of the inner lock plate 41 and is connected to one end of the inner lock reset spring 6. The inner lock groove 42 cooperates with the outer lock groove 22 to form an internal and external synchronous locking structure for synchronous locking and unlocking.

[0029] The inner and outer lock buckle connecting pieces 5 include a movable pressing piece 51 and a movable pressing piece connecting piece 52. One side of the movable pressing piece 51 is in conflict with the inner lock groove 42. The movable pressing piece 51 is rotatably connected to the back side of the base 11 through a rotating shaft. The movable pressing piece connecting piece 52 is formed on the surface of the movable pressing piece 51. The movable pressing piece connecting piece 52 is connected to the other end of the inner lock reset spring 6. The movable pressing piece 51 and the outer locking piece 21 share the same set of rotating shafts, and the movable pressing piece 51 is linked with the outer locking piece 21. When the outer locking piece 21 rotates, the rotation of the outer locking piece 21 will synchronously drive the movable pressing piece 51 to rotate. When the outer lock groove 22 on the side of the outer locking piece 21 is released from the connection with the lock buckle, the movable pressing piece 51 presses down the inner locking piece 41, and the inner locking piece 41 rotated under the pressure is synchronously released from the connection with the lock buckle, thereby completing synchronous locking and unlocking.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A car trunk lock, characterized by: The lock seat (1) comprises a lock seat (1), the surface of the lock seat (1) is connected to an external lock buckle (2) via a rotating shaft, an external lock reset spring (3) is connected between the lock seat (1) and the external lock buckle (2) for pulling the external lock buckle (2) to lock, an internal lock buckle (4) and an internal and external lock buckle connecting piece (5) are arranged on the back side of the lock seat (1) via a rotating shaft, and an internal lock reset spring (6) for auxiliary locking is connected between the internal lock buckle (4) and the internal and external lock buckle connecting piece (5); The lock seat (1) and the outer lock buckle (2) form a first locking structure under the elastic force of the outer lock reset spring (3), and the inner lock buckle (4) and the inner and outer lock buckle connecting piece (5) form a synchronous second locking structure under the elastic force of the inner lock reset spring (6).

2. The automobile trunk lock according to claim 1, characterized in that: The lock seat (1) comprises a base (11), a lock opening (12) and a connecting end (13); the lock opening (12) is located at a middle position between the bottom of the base (11); the connecting end (13) is formed on one side of the base (11); and the base (11) is connected to one end of an external lock return spring (3) via the connecting end (13).

3. The automobile trunk lock according to claim 1, characterized in that: The lock seat (1) further comprises a limiting protrusion (14), wherein two groups of the limiting protrusions (14) are provided, and the two groups of limiting protrusions (14) are staggered, and the two groups of limiting protrusions (14) staggered form a space for the outer lock buckle (2) to move.

4. The automobile trunk lock according to claim 3, characterized in that: The lock base (1) further comprises a base connecting piece (15), wherein the base connecting piece (15) is formed on both sides of the base (11), and a through hole is provided at the center of each base connecting piece (15).

5. The automobile trunk lock according to claim 4, characterized in that: The outer locking buckle (2) comprises an outer locking plate (21), an outer locking groove (22) and an outer locking plate connecting plate (23); the outer locking plate (21) is arranged on the surface of the base (11) via a rotating shaft, and the movable space of the outer locking plate (21) is limited within the movable space formed by the two groups of limiting protrusions (14); the outer locking groove (22) is formed on one side of the outer locking plate (21), the outer locking plate connecting plate (23) is formed on the end of the outer locking plate (21), and the outer locking plate (21) is connected to the other end of the outer lock return spring (3) via the outer locking plate connecting plate (23).

6. The automobile trunk lock according to claim 5, characterized in that: The inner lock buckle (4) comprises an inner lock plate (41), an inner lock groove (42) and an inner lock plate connecting plate (43); the inner lock plate (41) is connected to the back side of the base (11) via a rotating shaft; the inner lock groove (42) is formed at a position of the inner lock plate (41) corresponding to the lock opening (12); the inner lock plate connecting plate (43) is formed at the top end of the inner lock plate (41) and connected to one end of the inner lock return spring (6).

7. The automobile trunk lock according to claim 1, characterized in that: The inner and outer locking connecting pieces (5) include a movable pressing piece (51) and a movable pressing piece connecting piece (52); the movable pressing piece (51) is rotatably connected to the back side of the base (11) via a rotating shaft; one side of the movable pressing piece (51) abuts against the inner locking groove (42); the movable pressing piece connecting piece (52) is formed on the surface of the movable pressing piece (51); and the movable pressing piece connecting piece (52) is connected to the other end of the inner locking return spring (6).

8. The automobile trunk lock according to claim 7, characterized in that: The movable pressing plate (51) and the outer locking plate (21) share the same set of rotating shafts, and the movable pressing plate (51) and the outer locking plate (21) are linked.

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