CN110836056A

CN110836056A - Double-pull unlocking type engine hood lock

Info

Publication number: CN110836056A
Application number: CN201810940384.3A
Authority: CN
Inventors: 陈冠宇; 江衍鸿; 朱子政; 奚仲强
Original assignee: Fuzhou Mingfang Automobile Parts Industry Co Ltd; Hsin Chong Machinery Works Co Ltd
Current assignee: Fuzhou Mingfang Automobile Parts Industry Co Ltd; Hsin Chong Machinery Works Co Ltd
Priority date: 2018-08-17
Filing date: 2018-08-17
Publication date: 2020-02-25

Abstract

The invention provides a double-pull unlocking type hood lock, comprising: the extension structure, the carrier, and the unlocking piece and the relay piece which are all pivoted on the carrier. The unlocking piece can only rotate the driving angle and is provided with a driving part; the relay piece is provided with a driven part corresponding to the driving part; the lengthening structure is pivoted with the relay part or the unlocking part and is provided with a lengthening arm, and the lengthening structure is selectively bridged or not bridged between the driving part and the driven part by the lengthening arm through being driven; wherein, after the unblocking piece twice rotated the same drive angle, will drive the driven portion and drive the relay piece and rotate first angle of unblanking and second angle of unblanking respectively with drive portion selectivity via or not come the butt via the extension arm, and the second angle of unblanking is greater than first angle of unblanking. Therefore, the effect that the unlocking can be completely realized only by double pulling can be achieved.

Description

Double-pull unlocking type engine hood lock

Technical Field

The present invention relates to a hood lock, and more particularly to a double-pull unlocking type hood lock.

Background

In the existing hood lock, a user needs to pull a pull rope (single pull) in a vehicle firstly, but only the hood is lifted firstly to form a gap with a vehicle body and cannot be unlocked completely, and the hood lock is still half hooked on a lock rod and cannot open the hood.

Therefore, when the user wants to open the hood, he or she must insert his or her fingers into the engine room through the gap and then move the hood lock, so that the hood lock can be completely unlocked and the hood can be opened, which is troublesome and inconvenient.

Disclosure of Invention

The invention aims to provide a double-pull unlocking type hood lock which can be completely unlocked by pulling a pull cable twice (double-pull).

In order to achieve the above object, the present invention provides a double-pull unlocking type hood lock, comprising: a carrier movably configured with a lock assembly; an unlocking piece which is pivoted on the carrier and can only rotate by a driving angle, and is provided with a driving part; a relay piece which is pivoted with the carrier and is provided with a plurality of steps for stopping the lock component and a driven part corresponding to the driving part; the lengthening structure is pivoted to the relay part or the unlocking part and is provided with a lengthening arm, and the lengthening structure is selectively bridged or not bridged between the driving part and the driven part by the lengthening arm through being driven; wherein, the unlocking piece rotates the driving angle and directly abuts against the driven part by the driving part to drive the relay piece to rotate a first unlocking angle; the unlocking piece still rotates the driving angle and drives the relay piece to rotate a second unlocking angle by the driving part indirectly abutting against the driven part through the bridging lengthened arm, and the second unlocking angle is larger than the first unlocking angle.

The lengthening structure is pivoted to the relay piece, the unlocking piece has a pre-rotation state and a post-rotation state, and the driving part abuts against the driven part in the post-rotation state for the first time to stop the lengthening structure from rotating forward relative to the relay piece; the unlocking piece is in the state after the first rotation, and the driving part directly drives the relay piece to rotate the first unlocking angle.

An elastic member is arranged between the lengthening structure and the carrier to generate elastic restoring force, and the driving part abuts against the driven part to stop the elastic restoring force of the lengthening structure.

The device also comprises a blocking body, the lengthening structure is pivoted to the relay corresponding to the driven part and is also provided with a blocking part, the blocking body is arranged on the carrier corresponding to the blocking part, and the blocking body and the driving part alternately block the lengthening structure from positively rotating relative to the relay in the state before the rotation and the state after the first rotation respectively.

The unlocking piece drives the relay piece to rotate towards an unlocking direction in the rotated state, and the relay piece can be driven to rotate towards the unlocking direction and drive the lengthening structure to enable the blocking part to be blocked by the blocking body and rotate reversely.

The unlocking piece also has a released state, the driving part is far away from the driven part in the released state, the blocking part is far away from the blocking body in the released state, the blocking of the lengthening structure is released in a double-double mode, and the lengthening structure is in bridge connection between the driving part and the driven part through the driven by the lengthening arm; the unlocking piece is in the state after the second rotation, the driving part indirectly drives the relay piece to rotate the second unlocking angle through the lengthened arm.

The extension structure is pivoted to the relay corresponding to the driven part and is also provided with a blocking part, the blocking part is arranged on the carrier corresponding to the blocking part, the unlocking piece drives the relay to rotate towards an unlocking direction, and the relay can be driven to rotate towards a direction opposite to the unlocking direction and drive the extension structure to be blocked by the blocking part through the blocking part and rotate reversely.

The lock assembly comprises a lock tongue pivoted to the carrier and a lock rod capable of being limited by the lock tongue, the multiple gear steps of the relay comprise a first gear step and a second gear step protruding relative to the first gear step, the unlocking piece has a pre-rotation state and a post-rotation state, and the relay stops the lock tongue and the lock rod by the first gear step and the second gear step respectively in the pre-rotation state and the first post-rotation state.

The unlocking piece has a state after rotation, the unlocking piece indirectly drives the relay piece to rotate the second unlocking angle through the lengthening structure in the state after the rotation for the second time, and the lock hook hooks the relay piece which rotates the second unlocking angle to keep the second unlocking angle.

The lock hook is provided with a driven part, the jacking structure is arranged on the carrier corresponding to the driven part and has a downward shrinkage state, and the jacking structure is abutted against the driven part in the downward shrinkage state to drive the lock hook to be disengaged from the relay.

The lock assembly comprises a lock rod connected with the engine cover, the lock rod is provided with a covering preset position following the covering of the engine cover, and the depth of the groove is far greater than the covering preset position to form a section of impact buffering length.

Wherein, the unlocking piece and the relay piece are pivoted on the carrier by the same pivoting piece.

Compared with the prior art, the invention has the following effects: the hood lock can be completely unlocked only by the action of double pulling, and a user does not need to extend fingers into the engine room through a gap between the hood and the vehicle body to unlock the hood lock in a troublesome way.

Drawings

FIG. 1 is a perspective view of the hood lock of the present invention from a perspective.

FIG. 2 is a perspective view of the hood lock of the present invention from another perspective.

FIG. 3 is a front perspective view of the hood lock of the present invention prior to being pulled.

Fig. 4 is a front view of the hood lock of the present invention before being pulled (the outer cover and each first elastic member are omitted in fig. 4-10).

FIG. 5 is a front view of the hood lock of the present invention immediately after the first pull.

FIG. 6 is a front view of the hood lock of the present invention after the first pull.

FIG. 7 is a front view of the hood lock of the present invention after release.

FIG. 8 is a front view of the hood lock of the present invention at the beginning of the second pull.

FIG. 9 is a front view of the hood lock of the present invention after a second pull.

FIG. 10 is a front view of the hood lock of the present invention in an impact.

In the figure:

100 … hood lock;

1 … vector; 1a … seat plate; 1b … outer cover;

11 … a lock assembly; 111 … a locking tongue; 1111 … tiger's mouth;

112 … lock bar; 12 … grooves; 13 … a first elastic member;

2 … relay piece; 21 … first gear step; 22 … second step;

23 … passive part; 24 … post; 3 … unlocking;

31 … pull portion; 32 … carry-over portion; 4 … lengthening structure;

41 … swivel; 411 … elongated arm; 412 … stop; 42 … baffle;

5 … locking hook; 51 … hook part; 52 … carried portion;

6 … ceiling structure; 61 … jacking cylinder; 62 … a second resilient member;

800 cable 800 ….

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

As shown in fig. 1 to 4, the present invention provides a double-pull unlocking type hood lock (hereinafter, referred to as a hood lock), which is mainly characterized in that a user can completely unlock the hood lock without locking the hood by pulling twice. The hood lock 100 includes: a carrier 1, a relay 2, an unlocking member 3, and an extension structure 4, and preferably further comprises a stopper 42, a locking hook 5, and a lifting structure 6. Wherein, the relay 2, the unlocking piece 3 and the lock hook 5 are pivoted on the carrier 1 and can rotate relative to the carrier 1; a first elastic element 13 (only see fig. 3, and other figures are omitted) is respectively disposed between the relay element 2, the unlocking element 3, and the locking hook 5 and the carrier 1, so that the relay element 2, the unlocking element 3, and the locking hook 5 can rotate relative to the carrier 1 to generate an elastic restoring force.

The carrier 1 can be any object having a bearing function, for example, a complete housing (not shown), or a two-piece housing as shown in fig. 1 and 2: comprises a seat plate 1a and a cover 1b capable of covering corresponding to the seat plate 1 a. The carrier 1 is formed with a groove 12 and is movably configured with a lock component 11, the lock component 11 may for example comprise a lock tongue 111 and a lock rod 112, the lock tongue 111 is pivoted to the carrier 1 corresponding to the groove 12, the lock rod 112 is movable in the groove 12 and can be limited by the first web 1111 of the lock tongue 111, and the lock rod 112 is connected to the engine cover (not shown).

The relay member 2 has a plurality of steps for stopping the lock assembly 11 and a driven portion 23. Specifically, the plurality of steps includes a first step 21 and a second step 22 protruding in a step shape with respect to the first step 21, that is, the first step 21 and the second step 22 protrude in a step shape with respect to each other. In detail, the first step 21 and the second step 22 are located at one end of the relay 2, the driven portion 23 is located at the other end of the relay 2, the two ends of the relay 2 are pivoted to the carrier 1 by a pivot (not labeled with reference numeral), and the relay 2 can rotate in a locking direction (clockwise direction) relative to the carrier 1 with the pivot as an axis under the action of the elastic restoring force.

The unlocking member 3 has a pulling portion 31 and a driving portion 32 corresponding to the passive portion 23, and the unlocking member 3 can only rotate by a driving angle. Specifically, the pulling portion 31 is connected with a pulling cable 800 for the user to pull; the unlocking member 3 allows the user to have a pre-rotation state (see fig. 3 or 4), a post-rotation state (see fig. 6) and a post-release state (see fig. 7) by pulling or releasing the cable 800; moreover, the unlocking member 3 can directly or indirectly abut against the driven portion 23 in the rotated state to drive the relay member 2 to rotate in an unlocking direction (i.e. counterclockwise direction). The unlocking member 3 can be bent in a V-shape and pivoted to the carrier 1 at the bent position by the same pivoting member.

The extension structure 4 can be pivoted to the relay member 2 or the unlocking member 3, and the extension structure 4 has an extension arm 411. The extension structure 4 can be moved (for example, driven by the elastic restoring force generated by the first elastic element 13) to bridge or not bridge the gap between the driving portion 32 and the driven portion 23 by the extension arm 411; when the extension arm 411 is bridged between the driving portion 32 and the driven portion 23, the driving portion 32 can be extended or the driven portion 23 can be extended.

The invention is not limited to the case that the extension structure 4 is pivoted to the relay member 2 or the unlocking member 3, as long as the extension structure 4 can extend the driven portion 23 or the driving portion 32 by the extension arm 411, and in the embodiment, the corresponding pivoting of the driven portion 23 to the relay member 2 is taken as an example for explanation.

Therefore, when the user does not pull the cable 800, as shown in fig. 4, the unlocking member 3 is in the state before rotation, and at this time, the first step 21 of the relay member 2 stops the latch 111, so that the lock lever 112 is restricted by the tiger's mouth 1111 to be in the locked state. When the user pulls the cable 800 for the first time, as shown in fig. 5 and 6, the unlocking member 3 rotates the driving angle to be in the state after the first rotation, and the driving portion 32 directly abuts against the driven portion 23 to drive the relay member 2 to rotate for the first unlocking angle, so that the lock rod 112 is firstly released from the limit of the first web 1111 and then is stopped by the second stopper 22 to be in the state of quasi-unlocking. When the user releases the cable 800 first and then pulls the cable for the second time, as shown in fig. 7, 8 and 9, the unlocking member 3 will still rotate the above-mentioned driving angle to be in the second rotation state, and the driving portion 32 indirectly abuts against the driven portion 23 via the bridged extended arm 411 to drive the relay member 2 to rotate for a second unlocking angle, and the second unlocking angle is greater than the first unlocking angle, so that the lock rod 112 is released from the stop of each step of the relay member 2 to unlock. In other words, the driving portion 32 directly abuts against the driven portion 23 after the first rotation, so as to stop the extension arm 411 of the extension structure 4 from rotating forward (e.g., clockwise) relative to the relay 2; at this time, the unlocking member 3 directly drives the relay member 2 to rotate by the first unlocking angle by the driving portion 32 in the state after the first rotation. In short, the unlocking member 3 can drive the relay member 2 to rotate two different unlocking angles at the same driving angle: a first unlocking angle and a second unlocking angle.

Preferably, the elongated structure 4 is a rotating body 41 and has the aforementioned elongated arm 411 and a stopping portion 412, and the stopping body 42 is disposed on the carrier 1 corresponding to the stopping portion 412, such that the stopping body 42 is located on the moving path of the stopping portion 412. In this manner, a first effect, a second effect, or both can be produced, as described below. The first function is as follows: the blocking portion 412 and the extension arm 411 can be alternately blocked by the blocking body 42 and the driving portion 32 in the pre-rotation state and the first post-rotation state, respectively, so that the extension structure 4 can not rotate forward (e.g., clockwise) relative to the relay member 2 based on the elastic restoring force for a while. The second function is as follows: when the relay member 2 rotates in the locking direction due to the action of the first elastic member 13, the elongated structure 4 is driven to rotate in the reverse direction (e.g., counterclockwise) back to the positive direction with the blocking portion 412 thereof being blocked by the blocking body 42, i.e., the elongated structure can rotate in the reverse direction to return to the pre-rotation state.

As mentioned above, when the user releases the cable 800, as shown in fig. 7, the unlocking element 3 is in the released state and can rotate clockwise due to the action of the first elastic element 13, and at this time, besides the driving portion 32 is far away from the driven portion 23 and no longer blocks the extension arm 411 of the extension structure 4, the blocking portion 412 is far away from the blocking body 42, that is, the blocking body 42 no longer blocks the blocking portion 412 of the extension structure 4. In this way, the extension structure 4 can rotate clockwise by the action of the first elastic element 13, and the extension arm 411 is bridged between the driving portion 32 and the driven portion 23, at this time, the unlocking member 3 can indirectly drive the relay member 2 to rotate by the second unlocking angle through the extension arm 411 by the driving portion 32 in the second rotation state.

In addition, as shown in fig. 8 and 9, the lock hook 5 has a hook portion 51 and a driven portion 52, and the lifting structure 6 is disposed on the carrier 1 corresponding to the driven portion 52 and has a downward-retracted state. The unlocking member 3 indirectly drives the relay member 2 to rotate by the second unlocking angle through the extension arm 411 after the second rotation, so that the hook portion 51 of the lock hook 5 hooks the convex column 24 of the relay member 2 which has rotated by the second unlocking angle, and the relay member 2 is maintained at the second unlocking angle. The lifting structure 6 comprises a lifting cylinder 61 and a second elastic member 62 connected between the lifting cylinder 61 and the carrier 1 for elastically lifting the hood.

As shown in fig. 4, when the user closes the hood to the vehicle body, the interlock lock lever 112 moves down together with the raising structure 6. At this time, the lifting structure 6 will abut against the driven part 52 in the aforementioned retracted state to drive the lock hook 5 to disengage from the convex post 24 of the relay 2, so that each member (such as the relay 2) can be returned to the original position by the elastic restoring force.

As shown in fig. 10, when the hood is closed on the vehicle body, the lock lever 112 will follow the downward movement of the hood in the groove 12 to a predetermined closing position (i.e. the position of the lock lever 112 relative to the groove 12 when the hood is normally closed, see fig. 4). In order to further provide the impact buffering effect when the pedestrian collides with the hood, the hood lock 100 of the present invention particularly designs the depth of the groove 12 to be much greater than the predetermined covering position, that is, the lower end of the groove 12 has a impact buffering length much greater than the predetermined covering position, so as to provide the impact buffering effect by utilizing the impact buffering length.

In summary, compared to the prior art, the present invention has the following effects: the hood lock 100 can be completely unlocked only by double-pull action (the existing hood lock can only be pulled singly), and a user does not need to stretch fingers into the engine room through a gap between the hood and the vehicle body to unlock the hood lock in a troublesome way, so that the convenience effect is achieved.

In addition, the invention has other effects: the groove 12 formed by the hood lock 100 also has an extended buffer length, thereby having a buffering effect when a pedestrian hits the hood.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.

Claims

1. A double-pull unlocking type hood lock, comprising:

a carrier movably configured with a lock assembly;

an unlocking piece which is pivoted on the carrier and can only rotate by a driving angle, and is provided with a driving part;

a relay piece which is pivoted with the carrier and is provided with a plurality of steps for stopping the lock component and a driven part corresponding to the driving part; and

the lengthening structure is pivoted with the relay part or the unlocking part and is provided with a lengthening arm, and the lengthening structure is selectively bridged or not bridged between the driving part and the driven part by the lengthening arm through being driven;

wherein, the unlocking piece rotates the driving angle and directly abuts against the driven part by the driving part to drive the relay piece to rotate a first unlocking angle; the unlocking piece still rotates the driving angle and drives the relay piece to rotate a second unlocking angle by the driving part indirectly abutting against the driven part through the bridging lengthened arm, and the second unlocking angle is larger than the first unlocking angle.

2. A double pull unlock type hood lock according to claim 1 wherein the extension structure is pivotally connected to the relay, the unlock member having a pre-rotation state and a post-rotation state, the driver abutting against the driven portion in the first post-rotation state to stop the forward rotation of the extension structure relative to the relay; the unlocking piece is in the state after the first rotation, and the driving part directly drives the relay piece to rotate the first unlocking angle.

3. The double-release hood lock of claim 2, wherein an elastic member is disposed between the extension structure and the carrier to generate an elastic restoring force, and the driving portion abuts against the driven portion to stop the elastic restoring force of the extension structure.

4. The double-pull unlock type hood lock according to claim 2, further comprising a stopper, wherein the elongated structure is pivotally connected to the relay in correspondence with the receiving portion and further has a stopper portion provided to the carrier in correspondence with the stopper portion, the stopper and the driving portion alternately stopping the elongated structure from rotating in a forward direction with respect to the relay in the pre-rotation state and the post-rotation state for the first time, respectively.

5. A double pull unlock type hood lock according to claim 4 wherein the unlock member rotates the relay member in an unlock direction in the rotated state, the relay member being capable of being rotated in a direction opposite to the unlock direction by being actuated and driving the extension structure to be stopped by the stopper and rotated reversely by the stopper.

6. The double-pull unlock type hood lock according to claim 4, wherein the unlock member further has a released state in which the driver portion is away from the passive portion and the stopper portion is away from the stopper body in the released state to double-release the stopper of the extension structure, the extension structure being actuated to bridge between the driver portion and the passive portion with the extension arm; the unlocking piece is in the state after the second rotation, the driving part indirectly drives the relay piece to rotate the second unlocking angle through the lengthened arm.

7. A double-pull unlock type hood lock according to claim 1 further comprising a stopper, the elongated structure being pivotally connected to the relay corresponding to the receiving portion and further having a stopper corresponding to the stopper provided to the carrier, the unlocking member driving the relay to rotate in an unlocking direction, the relay being capable of being rotated in a direction opposite to the unlocking direction by being driven and driving the elongated structure to be stopped by the stopper and rotated in a reverse direction by the stopper.

8. The hood lock of claim 1 wherein the lock assembly comprises a latch pivotally connected to the carrier and a lock bar constrained by the latch, the plurality of steps of the relay comprise a first step and a second step projecting relative to the first step, the unlocking member has a pre-rotation state and a post-rotation state, and the relay respectively retains the latch with the first step and the lock bar with the second step in the pre-rotation state and the post-rotation state.

9. The double-pull unlock type hood lock of claim 1 further comprising a lock hook pivotally connected to the carrier, the unlock member having a post-rotation state in which the unlock member indirectly drives the relay member to rotate the second unlock angle via the extension structure in the post-rotation state for the second time, the lock hook hooking the relay member rotated by the second unlock angle to maintain the second unlock angle.

10. The dual release hood lock of claim 9, further comprising a raised structure, wherein the lock hook has a driven portion, the raised structure is disposed on the carrier corresponding to the driven portion and has a retracted state, and the raised structure abuts against the driven portion in the retracted state to release the lock hook from the relay.

11. The double pull unlock type hood lock of claim 1 wherein the carrier further defines a slot, the lock assembly including a lock bar connected to the hood, the lock bar having a predetermined closing position following closing of a hood, the slot having a depth substantially greater than the predetermined closing position to define a bump stop length.

12. A double pull unlock type hood lock according to claim 1 wherein the unlock member and the relay member are pivoted to the carrier by the same pivot member.