CN218029630U - Safety latch hook retaining mechanism - Google Patents

Abstract

The utility model belongs to the technical field of automobile front cover locks, in particular to a safety lock hook retaining mechanism, which comprises a lock catch, a base, a memory pin, a safety lock hook and a bottom plate, wherein the lock catch is arranged on the front cover, the bottom plate is arranged on a front cabin, the safety lock hook is rotationally arranged on the bottom plate, the lock catch is positioned above the safety lock hook, the safety lock hook is sequentially provided with a safety lock position and a guide groove around the rotation direction of the safety lock hook, the safety lock hook is provided with a reset torsion spring, and a limit step is arranged in the guide groove; the base is fixedly arranged on the bottom plate, one end of the memory pin is arranged in the base in a sliding mode, the other end of the memory pin is arranged in the guide groove, an elastic piece is arranged between the base and the memory pin and used for keeping the memory pin to be abutted against the guide groove, when the safety lock hook rotates to an unlocking position, the lock catch can be released at the safety lock position, and the memory pin is abutted against the limiting step to prevent the safety lock hook from reversely resetting.

Description

Safety latch hook retaining mechanism

Technical Field

The utility model belongs to the technical field of car protecgulum lock, especially, relate to a safe latch hook retaining mechanism.

Background

The existing new energy automobile can realize automatic opening and closing of the trunk cover by taking the front cabin as a trunk cabin and matching with the electric stay bar of the front cover and the electric front cover lock, such as a lock for a motor vehicle disclosed in the existing patent CN201880025907. X. In order to avoid the danger that the front cover is accidentally opened in the travelling crane, the conventional front cover lock is provided with a first-level lock and a safety lock (a second-level lock), but when the front cover is too heavy to be lifted by the electric support rod due to accumulated snow or other heavy objects, the electric front cover lock is required to have a snow load function, namely, the safety lock hook of the front cover lock is kept at an unlocking position, the situation that the lock catch of the front cover cannot be upwards separated from the safety lock hook due to the too heavy front cover is prevented, and the safety lock hook is prevented from being locked again, so that the unlocking failure is caused.

SUMMERY OF THE UTILITY MODEL

For solving the problem that the hasp can't upwards break away from the safety latch hook because of the protecgulum is too heavy that prior art exists, lead to the failure of unblanking, the utility model provides a safety latch hook retaining mechanism.

In order to solve the technical problem, the technical scheme adopted by the utility model is as follows, a safety lock hook retaining mechanism comprises a lock catch, a base, a memory pin, a safety lock hook and a bottom plate, wherein the lock catch is arranged on a front cover, the bottom plate is arranged on a front cabin, the safety lock hook is rotatably arranged on the bottom plate, the lock catch is positioned above the safety lock hook, a safety lock position and a guide groove are sequentially arranged on the safety lock hook around the rotation direction of the safety lock hook, a reset torsion spring is arranged on the safety lock hook, and a limit step is arranged in the guide groove; the base is fixedly arranged on the bottom plate, one end of the memory pin is arranged in the base in a sliding mode, the other end of the memory pin is arranged in the guide groove, an elastic piece is arranged between the base and the memory pin and used for keeping the memory pin to be abutted against the guide groove, when the safety lock hook rotates to an unlocking position, the lock catch can be released at the safety lock position, and the memory pin is abutted against the limiting step to prevent the safety lock hook from reversely resetting.

Preferably, the elastic direction of the elastic member and the sliding direction of the memory pin are perpendicular to and intersect with the rotation axis of the safety lock hook. When the safety lock hook is ensured to drive the guide groove to rotate, the end part of the memory pin is kept to be abutted against the guide groove, so that the memory pin is abutted against the limiting step to prevent the safety lock hook from reversely resetting when the safety lock hook rotates to the unlocking position, and the lock catch can fall down to drive the safety lock hook to reversely reset under the action of certain external force.

Preferably, the elastic part is a spring, the base is provided with a chute, the memory pin is provided with a spring cavity, the memory pin is arranged in the chute in a sliding manner, one end of the spring is positioned in the chute, and the other end of the spring is positioned in the spring cavity. The memory pin is simple and reliable in arrangement, and the sliding stability of the memory pin is high.

Further, one end of the memory pin close to the guide groove has a spherical surface. The memory pin and the guide groove can slide relatively and stably.

Furthermore, the safety lock hook is rotatably arranged on the bottom plate through a rivet, an arc-shaped groove is formed in the bottom plate, a guide pin is fixedly arranged on the safety lock hook, and the guide pin is arranged along the arc-shaped groove in a sliding mode. The setting of safety lock hook is simple reliable, improves safety lock hook's stability in rotation.

Has the beneficial effects that: the utility model discloses a safe latch hook retaining mechanism mainly is applied to the front shroud lock of car, and during the unblock, at first the safe latch hook drives the safe position of locking and rotates to the unblock position, and simultaneously, the safe latch hook drives the guide way rotation, then the memory pin slides relative to the guide way, and the tip of memory pin supports the tank bottom that leans on the guide way all the time under the effect of spring, when the safe latch hook rotates to the unblock position, the memory pin offsets with spacing step in order to prevent the safe latch hook reversal to reset; meanwhile, the front cover drives the lock catch to bounce upwards, and the electric stay bar drives the front cover and the lock catch to continuously rise upwards to finish the unlocking process; it leads to electronic vaulting pole can't drive protecgulum and hasp continuation upwards to rise to cover snow or other heavy objects at present, lead to the hasp can't upwards break away from the safety lock position, because of memory round pin and spacing step counterbalance and prevented the safety lock hook reversal to reset, can make the safety lock hook open the back and keep the normal position not to reset, effectively prevent that the safety lock hook from driving the safety lock position reversal to the shutting position and leading to unblanking failure, for providing electronic vaulting pole operating time, and this safety lock hook holding mechanism's simple structure, spare part is few, high validity, high quality, can satisfy the requirement of more motorcycle types, the cost of product has been reduced simultaneously, therefore, this safety lock hook holding mechanism has certain practicality, good market prospect has.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the safety latch hook retaining mechanism of the present invention;

fig. 2 is a schematic view of the locking state of the safety latch hook holding mechanism of the present invention;

fig. 3 is a schematic view of the unlocking state of the safety latch hook holding mechanism of the present invention;

FIG. 4 is an enlarged partial schematic view of A in FIG. 3;

in the figure: 1. the lock catch comprises a lock catch body, 2 parts of a base, 3 parts of a memory pin, 4 parts of a safety lock hook, 41 parts of a safety lock position, 42 parts of a guide groove, 421 parts of a limiting step, 5 parts of a bottom plate, 51 parts of an arc groove, 6 parts of a reset torsion spring, 7 parts of a spring, 8 parts of a rivet, 9 parts of a guide pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in fig. 1 to 4, a safety lock hook holding mechanism includes a lock catch 1, a base 2, a memory pin 3, a safety lock hook 4 and a bottom plate 5, wherein the lock catch 1 is disposed on a front cover of an automobile, the bottom plate 5 is disposed on a front cabin of the automobile, the safety lock hook 4 is rotatably disposed on the bottom plate 5, the lock catch 1 is located above the safety lock hook 4, a safety lock position 41 and a guide groove 42 are sequentially disposed on the safety lock hook 4 around a rotation direction thereof, a reset torsion spring 6 is disposed on the safety lock hook 4, and a limit step 421 is disposed in the guide groove 42; the base 2 is fixedly arranged on the bottom plate 5, one end of the memory pin 3 is slidably arranged in the base 2, the other end of the memory pin 3 is arranged in the guide groove 42, an elastic piece is arranged between the base 2 and the memory pin 3, the elastic piece is used for keeping the memory pin 3 to be abutted against the guide groove 42, when the safety lock hook 4 rotates to an unlocking position, the lock catch 1 can be released at the safety lock position 41, and the memory pin 3 is abutted against the limiting step 421 to prevent the safety lock hook 4 from reversely resetting.

In order to ensure the reliability and stability of the snow load function of the memory pin 3, in the present embodiment, as shown in fig. 4, both the elastic force direction of the elastic member and the sliding direction of the memory pin 3 are perpendicular to and intersect the rotation axis of the safety catch 4; the elastic part is a spring 7, a sliding groove is formed in the base 2, a spring 7 cavity is formed in the memory pin 3, the memory pin 3 is arranged in the sliding groove in a sliding mode, one end of the spring 7 is located in the sliding groove, and the other end of the spring 7 is located in the spring 7 cavity; the end of the memory pin 3 near the guide groove 42 has a spherical surface.

In order to improve the reliability and stability of locking and unlocking of the safety lock hook 4, in this embodiment, as shown in fig. 1 to 3, the safety lock hook 4 is rotatably disposed on the bottom plate 5 through a rivet 8, an arc-shaped groove 51 is formed in the bottom plate 5, a guide pin 9 is fixedly disposed on the safety lock hook 4, and the guide pin 9 is slidably disposed along the arc-shaped groove 51.

The working principle is as follows:

an unlocking process: as shown in fig. 3 and 4, firstly, the safety lock hook 4 drives the safety lock position 41 to rotate to the unlocking position, meanwhile, the safety lock hook 4 drives the guide groove 42 to rotate, the memory pin 3 slides relative to the guide groove 42, the end of the memory pin 3 always abuts against the groove bottom of the guide groove 42 under the action of the spring 7, and when the safety lock hook 4 rotates to the unlocking position, the memory pin 3 abuts against the limit step 421 to prevent the safety lock hook 4 from reversely returning; meanwhile, the front cover drives the lock catch 1 to bounce upwards, and the electric stay bar drives the front cover and the lock catch 1 to continuously rise upwards, so that the unlocking process is completed; the electric stay bar cannot drive the front cover and the lock catch 1 to continuously rise due to the fact that accumulated snow or other heavy objects are covered at present, the lock catch 1 cannot be separated from the safe lock position 41 upwards, the memory pin 3 abuts against the limiting step 421 to prevent the safe lock hook 4 from reversing and resetting, and unlocking failure caused by the fact that the safe lock hook 4 drives the safe lock position 41 to reverse to a locking position is effectively prevented;

locking process: as shown in fig. 2, the electric stay bar drives the front cover and the latch 1 to descend until the latch 1 falls into the safety lock position 41, and the force of the memory pin 3 against the limit step 421 is overcome due to the action of the electric stay bar (external force), at this time, the memory pin 3 is far away from the guide groove 42 and compresses the spring 7, and meanwhile, the safety lock hook 4 drives the safety lock position 41 to rotate reversely to the locking position, thereby completing the locking operation of the safety lock hook 4.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims (5)

1. A safety latch hook retention mechanism characterized in that: the safety lock comprises a lock catch (1), a base (2), a memory pin (3), a safety lock hook (4) and a bottom plate (5), wherein the lock catch (1) is arranged on a front cover, the bottom plate (5) is arranged on a front cabin, the safety lock hook (4) is rotatably arranged on the bottom plate (5), the lock catch (1) is positioned above the safety lock hook (4), a safety lock position (41) and a guide groove (42) are sequentially formed on the safety lock hook (4) around the rotation direction of the safety lock hook, a reset torsion spring (6) is arranged on the safety lock hook (4), and a limit step (421) is arranged in the guide groove (42); the safety lock is characterized in that the base (2) is fixedly arranged on the bottom plate (5), one end of the memory pin (3) is slidably arranged in the base (2), the other end of the memory pin (3) is arranged in the guide groove (42), an elastic piece is arranged between the base (2) and the memory pin (3), the elastic piece is used for keeping the memory pin (3) to be abutted against the guide groove (42), the safety lock hook (4) rotates to an unlocking position, the safety lock position (41) can release the lock catch (1), and the memory pin (3) is abutted against the limiting step (421) to prevent the safety lock hook (4) from reversely resetting.

2. The safety shackle retaining mechanism of claim 1, wherein: the elastic direction of the elastic piece and the sliding direction of the memory pin (3) are perpendicular to the rotation axis of the safety lock hook (4) and are arranged in an intersecting mode.

3. The safety shackle retaining mechanism as defined in claim 1 or 2, wherein: the elastic piece is a spring (7), a sliding groove is formed in the base (2), a spring (7) cavity is formed in the memory pin (3), the memory pin (3) is arranged in the sliding groove in a sliding mode, one end of the spring (7) is located in the sliding groove, and the other end of the spring (7) is located in the spring (7) cavity.

4. The safety shackle retaining mechanism of claim 3, wherein: one end of the memory pin (3) close to the guide groove (42) is provided with a spherical surface.

5. The safety shackle retaining mechanism of claim 1 or 2, wherein: the safety lock hook (4) is rotatably arranged on the bottom plate (5) through a rivet (8), an arc-shaped groove (51) is formed in the bottom plate (5), a guide pin (9) is fixedly arranged on the safety lock hook (4), and the guide pin (9) is arranged in a sliding mode along the arc-shaped groove (51).

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