Double pull unlock hood lock

Abstract

The present invention provides a double-pull unlocking type hood lock, comprising: an extended structure, a carrier, and an unlocking member and a relay member both pivotally connected to the carrier. The unlocking member can only rotate at a driving angle and has a driving part; the relay member has a driven part corresponding to the driving part; the extended structure is pivotally connected to the relay member or the unlocking member and has an extended arm, and the extended structure selectively bridges or does not bridge between the driving part and the driven part through the extended arm through the driven part; wherein, after the unlocking member rotates the same driving angle twice, the driving part can selectively contact the driven part through the extended arm or not through the extended arm to drive the relay member to rotate to a first unlocking angle and a second unlocking angle respectively, and the second unlocking angle is greater than the first unlocking angle. In this way, the effect of complete unlocking by only double pulling can be achieved.

Description

Technical Field

[0001] The invention relates to a hood lock, in particular to a double-pull unlocking type hood lock. Background Art

[0002] With the existing hood lock, the user must first pull the cable once (single pull) inside the car, but this can only lift the hood up and create a gap between the hood and the car body, and cannot completely unlock the hood. At this time, the hood lock is still half-hooked on the lock rod and the hood cannot be opened.

[0003] Therefore, when the user wants to open the hood, he must insert his finger into the engine compartment through the aforementioned gap and then turn the hood lock, so that the hood lock can be completely unlocked and the hood can be opened, which is obviously troublesome and inconvenient. Summary of the invention

[0004] The object of the present invention is to provide a double-pull unlocking type hood lock which can be completely unlocked by pulling a cable twice (double pull).

[0005] In order to achieve the above-mentioned purpose, the present invention provides a double-pull unlocking type hood lock, comprising: a carrier, which is movably equipped with a lock assembly; an unlocking member, which is pivoted to the carrier and can only rotate a driving angle, and the unlocking member has a driving part; a relay member, which is pivoted to the carrier and has a plurality of blocking steps for blocking the lock assembly and a driven part corresponding to the driving part; and an extension structure, which is pivoted to the relay member or the unlocking member and has an extension arm, and the extension structure is selectively connected or not connected between the driving part and the driven part through the extension arm; wherein, the unlocking member rotates the driving angle and the driving part directly abuts the driven part to drive the relay member to rotate a first unlocking angle; the unlocking member still rotates the driving angle and the driving part indirectly abuts the driven part through the bridged extension arm to drive the relay member to rotate a second unlocking angle, and the second unlocking angle is greater than the first unlocking angle.

[0006] Among them, the extension structure is pivotally connected to the relay member, and the unlocking member has a pre-rotation state and a post-rotation state. The driving part abuts against the driven part in the first post-rotation state to stop the extension structure from rotating in the positive direction relative to the relay member; in the first post-rotation state, the unlocking member directly drives the relay member to rotate to the first unlocking angle by the driving part.

[0007] An elastic member is disposed between the extension structure and the carrier to generate an elastic restoring force, and the driving part stops the elastic restoring force of the extension structure by abutting against the driven part.

[0008] Wherein, it also includes a blocking body, the lengthened structure is pivotally connected to the relay member corresponding to the driven part and also has a blocking part, the blocking body is arranged on the carrier corresponding to the blocking part, the blocking body and the driving part respectively stop the lengthened structure from rotating in the positive direction relative to the relay member in the state before the rotation and the state after the first rotation.

[0009] The unlocking member drives the relay member to rotate in an unlocking direction in the rotated state. The relay member can be driven to rotate in the opposite direction to the unlocking direction and drive the extension structure so that the blocking portion is blocked by the blocking body and rotates in the reverse direction.

[0010] Among them, the unlocking member also has a released state, in which the driving part is away from the driven part and the blocking part is away from the blocking body in the released state, and both release the blocking of the extension structure. The extension structure is connected between the driving part and the driven part by the extension arm through the driven part; in the second rotation state of the unlocking member, the driving part indirectly drives the relay member to rotate to the second unlocking angle through the extension arm.

[0011] It also includes a blocking body. The extended structure is pivotally connected to the relay member corresponding to the driven part and also has a blocking part. The blocking body is arranged on the carrier corresponding to the blocking part. The unlocking part drives the relay member to rotate in an unlocking direction. The relay member can rotate in the opposite direction to the unlocking direction through being driven and drive the extended structure so that the blocking part is blocked by the blocking body and rotates in the opposite direction.

[0012] In which, the lock assembly includes a lock tongue pivotally connected to the carrier and a lock rod that can be restricted by the lock tongue, the multiple steps of the relay include a first step and a second step protruding relative to the first step, the unlocking member has a pre-rotation state and a post-rotation state, and the relay stops the lock tongue with the first step and stops the lock rod with the second step in the pre-rotation state and the first post-rotation state respectively.

[0013] It also includes a lock hook, which is pivotally connected to the carrier. The unlocking member has a rotated state. In the second rotated state, the unlocking member indirectly drives the relay member to rotate to the second unlocking angle via the extension structure, and the lock hook hooks the relay member that has rotated to the second unlocking angle to maintain the second unlocking angle.

[0014] It also includes a top-height structure, the lock hook has a driven part, the top-height structure is arranged on the carrier corresponding to the driven part and has a retracted state, the top-height structure abuts against the driven part in the retracted state to drive the lock hook to unhook from the relay.

[0015] The carrier is also provided with a groove, and the lock assembly comprises a locking rod connected to the hood, the locking rod has a predetermined closing position following the closing of the hood, and the depth of the groove is much greater than the predetermined closing position to form an impact buffer length.

[0016] The unlocking member and the relay member are pivotally connected to the carrier by the same pivoting member.

[0017] Compared with the prior art, the present invention has the following effects: the hood lock can be completely unlocked only by double pulling, and the user no longer needs to insert his fingers into the engine compartment through the gap between the hood and the vehicle body to unlock the hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a three-dimensional perspective view of the engine hood of the present invention locked at one viewing angle.

[0019] Figure 2 The figure is a three-dimensional perspective view of the engine hood of the present invention locked at another viewing angle.

[0020] Figure 3 It is a front perspective view of the engine hood lock of the present invention before being pulled.

[0021] Figure 4 This is a front view of the engine hood lock of the present invention before being pulled ( Figure 4-Figure 10 The outer cover and the first elastic members are omitted).

[0022] Figure 5 It is a front view schematic diagram of the engine hood lock of the present invention at the moment when it is pulled for the first time.

[0023] Figure 6 It is a front view schematic diagram of the engine hood lock of the present invention after being pulled for the first time.

[0024] Figure 7 It is a front view schematic diagram of the engine hood lock after being released according to the present invention.

[0025] Figure 8 It is a front view schematic diagram of the engine hood lock of the present invention when it is just being pulled for the second time.

[0026] Fig. 9 It is a front view schematic diagram of the engine hood lock of the present invention after being pulled for the second time.

[0027] Fig.10 It is a front view schematic diagram of the engine hood lock of the present invention when it is hit.

[0028] In the figure:

[0029] 100…Hood lock;

[0030] 1…Carrier; 1a…Seat plate; 1b…Outer cover;

[0031] 11…lock assembly; 111…lock tongue; 1111…thumbnail;

[0032] 112 ... locking rod; 12 ... groove; 13 ... first elastic member;

[0033] 2…relay element; 21…first gear; 22…second gear;

[0034] 23… driven part; 24… boss; 3… unlocking member;

[0035] 31…pulling part; 32…driving part; 4…extension structure;

[0036] 41…rotating body; 411…extending arm; 412…blocking part; 42…blocking body;

[0037] 5…lock hook; 51…hook portion; 52…driven portion;

[0038] 6…top height structure; 61…top height cylinder; 62…second elastic member;

[0039] 800…Rail. DETAILED DESCRIPTION

[0040] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0041] like Figures 1 to 4 As shown, the present invention provides a double-pull unlocking type hood lock (hereinafter referred to as hood lock), which is mainly characterized in that the user can completely unlock the hood lock without locking the hood by pulling it twice. The hood lock 100 includes: a carrier 1, a relay 2, an unlocking member 3 and an extension structure 4, and preferably also includes a blocking body 42, a lock hook 5 and a top height structure 6. Among them, the relay 2, the unlocking member 3 and the lock hook 5 are all pivotally connected to the carrier 1 and can rotate relative to the carrier 1; a first elastic member 13 (only seen in Figure 3 , other figures omitted and not drawn), so that the relay member 2, the unlocking member 3 and the lock hook 5 can all rotate relative to the carrier 1 to generate an elastic restoring force.

[0042] The carrier 1 can be any object having a bearing function, for example, a complete shell (not shown), or a Figure 1 and Figure 2The two-piece housing shown includes a seat plate 1a and an outer cover 1b that can cover the seat plate 1a. The carrier 1 is provided with a groove 12 and is movably provided with a lock assembly 11. The lock assembly 11 may include, for example, a lock tongue 111 and a lock rod 112. The lock tongue 111 is pivotally connected to the carrier 1 at a position corresponding to the groove 12. The lock rod 112 can move in the groove 12 and can be restricted by the jaws 1111 of the lock tongue 111. The lock rod 112 is connected to the engine cover (not shown).

[0043] The relay 2 has a plurality of steps and a driven part 23 for blocking the locking assembly 11. Specifically, the plurality of steps include a first step 21 and a second step 22 that protrudes in a stepped shape relative to the first step 21, that is, the first step 21 and the second step 22 protrude in a stepped shape relative to each other. Specifically, the first step 21 and the second step 22 are both located at one end of the relay 2, and the driven part 23 is located at the other end of the relay 2. The two ends of the relay 2 are pivotally connected to the carrier 1 by a pivot (no element symbol is indicated), and the relay 2 can also be subjected to the elastic reset force mentioned above and rotate relative to the carrier 1 in a locking direction (clockwise direction) with the pivot as the axis.

[0044] The unlocking member 3 has a pulling portion 31 and a driving portion 32 corresponding to the driven portion 23, and the unlocking member 3 can only rotate by a driving angle. Specifically, the pulling portion 31 is connected to a cable 800 for the user to pull; the unlocking member 3 allows the user to have a pre-rotation state by pulling or releasing the cable 800 (see Figure 3 or Figure 4 ), a state after rotation (see Figure 6 ) and a post-release state (see Figure 7 ); and, the unlocking member 3 can drive the relay member 2 to rotate in an unlocking direction (i.e., counterclockwise) by directly or indirectly contacting the driven portion 23 with its driving portion 32 in the rotated state. The unlocking member 3 can be bent in a V shape and pivotally connected to the carrier 1 at the bending position by the same pivot member.

[0045] The extension structure 4 can be pivotally connected 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 driven (for example, driven by the elastic restoring force generated by the first elastic member 13) to bridge or not bridge between the driving portion 32 and the driven portion 23 with its extension arm 411; wherein, when the extension arm 411 bridges between the driving portion 32 and the driven portion 23, the driving portion 32 or the driven portion 23 can be extended.

[0046] The present invention does not limit the extension structure 4 to be pivotally connected to the relay 2 or the unlocking member 3, as long as the extension structure 4 can extend the driven portion 23 or the driving portion 32 through its extension arm 411. In this embodiment, the driven portion 23 is pivotally connected to the relay 2 as an example for explanation.

[0047] Thus, when the user has not yet pulled the cable 800, Figure 4 As shown, the unlocking member 3 is in the state before rotation. At this time, the first step 21 of the relay member 2 blocks the lock tongue 111, so that the lock rod 112 is restricted by the jaws 1111 and is in the locked state. Figure 5 and Figure 6 As shown, the unlocking member 3 rotates the aforementioned driving angle and is in the first rotation state, and the driving portion 32 directly contacts the receiving portion 23 to drive the relay member 2 to rotate a first unlocking angle, so that the lock rod 112 first escapes from the restriction of the jaws 1111, and then is stopped by the second step 22 and is in a quasi-unlocking state. When the user releases and then pulls the cable 800 for the second time, as shown in FIG. Figure 7 , Figure 8 and Fig. 9 As shown, the unlocking member 3 will still rotate the aforementioned driving angle and be in the state after the second rotation, and the driving portion 32 will indirectly abut the receiving portion 23 through the bridged extension arm 411 to drive the relay 2 to rotate 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 blocking of each step of the relay 2 and unlocked. In other words, the driving portion 32 directly abuts the receiving portion 23 in the state after the first rotation to prevent the extension arm 411 of the extension structure 4 from rotating in the positive direction (for example, clockwise) relative to the relay 2; at this time, the unlocking member 3 will directly drive the relay 2 to rotate the first unlocking angle with its driving portion 32 in the state after the first rotation. In short, the unlocking member 3 can drive the relay 2 to rotate two different unlocking angles: the first unlocking angle and the second unlocking angle at the same driving angle.

[0048] Preferably, the extension structure 4 can be a rotating body 41 and has the aforementioned extension arm 411 and a stopper 412, and the stopper body 42 is arranged on the carrier 1 corresponding to the stopper 412, so that the stopper body 42 is located on the moving path of the stopper 412. In this way, the first effect, the second effect, or the first and second effects can be generated, as described later. The first effect: the stopper body 42 and the driving part 32 can respectively block the stopper 412 and the extension arm 411 in turn in the state before rotation and the state after the first rotation, so that the extension structure 4 cannot temporarily rotate in the positive direction (for example, clockwise) relative to the relay 2 according to the elastic reset force. The second effect: when the relay 2 rotates in the locking direction due to the action of the first elastic member 13, the extension structure 4 can be driven to rotate in the reverse direction (for example, counterclockwise) with its stopper 412 blocked by the stopper body 42, that is, it can rotate in the reverse direction to return to the state before rotation.

[0049] As mentioned above, when the user releases the cable 800, Figure 7As shown, the unlocking member 3 will be in the released state and can rotate clockwise due to the action of the first elastic member 13. At this time, in addition to making the driving portion 32 away from the driven portion 23 and no longer blocking the extension arm 411 of the extension structure 4, the blocking portion 412 will also be away from the blocking body 42, that is, the blocking body 42 will no longer block the blocking portion 412 of the extension structure 4. In this way, the extension structure 4 can rotate clockwise by utilizing the action of the first elastic member 13, and the extension arm 411 is connected 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 to the second unlocking angle through the driving portion 32 via the extension arm 411 in the second rotation state.

[0050] In addition, if Figure 8 and Fig. 9 As shown, the lock hook 5 has a hook portion 51 and a driven portion 52, and the lifting structure 6 is arranged on the carrier 1 corresponding to the driven portion 52 and has a retracted state. After the second rotation, the unlocking member 3 will indirectly drive the relay member 2 to rotate to the second unlocking angle through the extension arm 411, so that the lock hook 5 hooks the protrusion 24 of the relay member 2 that has rotated to the second unlocking angle with its hook portion 51, so that the relay member 2 remains at the second unlocking angle. Among them, the lifting structure 6 includes a lifting tube 61 and a second elastic member 62 connected between the lifting tube 61 and the carrier 1, so as to elastically lift the engine hood.

[0051] For example Figure 4 As shown, when the user closes the hood to the vehicle body, the linkage lock rod 112 and the lifting structure 6 move downward together. At this time, the lifting structure 6 will abut the driven portion 52 in the aforementioned retracted state to drive the lock hook 5 to disengage from the protrusion 24 of the relay 2, so that each component (such as the relay 2, etc.) can return to the original position by elastic restoring force.

[0052] Another example Fig.10 As shown, when the hood is closed on the vehicle body, the locking rod 112 will follow the hood and move down in the groove 12 to a predetermined closing position (that is, the position of the locking rod 112 relative to the groove 12 when the hood is normally closed, see Figure 4 In order to further provide a cushioning effect when a pedestrian hits the hood, the hood lock 100 of the present invention is designed to have a depth of the groove 12 that is much greater than the aforementioned predetermined closing position, that is, the lower end of the groove 12 has a cushioning length that is much greater than the predetermined closing position, so as to utilize this cushioning length to provide a cushioning effect.

[0053] In summary, compared with the prior art, the present invention has the following advantages: the hood lock 100 can be completely unlocked by only a double pull action (the existing hood lock can only be pulled once), and the user no longer needs to insert his fingers into the engine compartment through the gap between the hood and the car body to unlock the car, which is indeed convenient.

[0054] In addition, the present invention has other functions: the groove 12 of the hood lock 100 has an extended buffer length, so it has a buffering effect when a pedestrian hits the hood.

[0055] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A double-pull unlocking type hood lock, characterized in that: include: a carrier movably equipped with a lock assembly; An unlocking member, pivotally connected to the carrier and capable of rotating only at a driving angle, the unlocking member having a driving portion; A relay, pivotally connected to the carrier and having a plurality of blocking steps for blocking the lock assembly and a driven portion corresponding to the driving portion; A plurality of first elastic members are respectively disposed between the relay member and the carrier, between the unlocking member and the carrier, and between the extension structure and the carrier, and are capable of generating an elastic restoring force; as well as An extension structure, pivotally connected to the relay member and having an extension arm, the extension structure is driven by the elastic restoring force generated by the first elastic member to selectively bridge or not bridge between the driving portion and the driven portion with the extension arm; Among them, the unlocking member rotates the driving angle and the driving part directly abuts the driven part to drive the relay member to rotate a first unlocking angle, and the driving part abuts the driven part to stop the extension structure from rotating relative to the relay member; the unlocking member rotates the driving angle again and the driving part indirectly abuts the driven part via the bridged extension arm to drive the relay member to rotate a second unlocking angle, and the second unlocking angle is greater than the first unlocking angle.

2. The double pull unlocking type hood lock according to claim 1, characterized in that: The unlocking member has a pre-rotation state and a post-rotation state. In the first post-rotation state, the driving portion blocks the forward rotation of the extension structure relative to the relay member through abutment; in the first post-rotation state, the unlocking member directly drives the relay member to rotate the first unlocking angle through the driving portion.

3. The double pull unlocking type hood lock according to claim 2, characterized in that: The driving portion blocks the elastic restoring force of the extension structure by abutting against the driven portion.

4. The double pull unlocking type hood lock according to claim 2, characterized in that: It also includes a blocking body. The extended structure is pivotally connected to the relay member corresponding to the driven part and also has a blocking part. The blocking body is arranged on the carrier corresponding to the blocking part. The blocking body and the driving part respectively stop the extended structure from rotating in the forward direction relative to the relay member in the state before the rotation and the state after the first rotation.

5. The double pull unlocking type hood lock according to claim 4, characterized in that: The unlocking member drives the relay member to rotate in an unlocking direction in the rotated state. The relay member can be driven to rotate in the direction opposite to the unlocking direction and drive the extension structure to rotate in the reverse direction so that the blocking portion is blocked by the blocking body.

6. The double pull unlocking type hood lock according to claim 4, characterized in that: The unlocking member also has a released state, in which the driving portion is away from the driven portion and the blocking portion is away from the blocking body, and both release the blocking of the extension structure. The extension structure is connected between the driving portion and the driven portion by the extension arm through the driven portion; in the second rotation state of the unlocking member, the driving portion indirectly drives the relay member to rotate to the second unlocking angle through the extension arm.

7. The double pull unlocking type hood lock according to claim 1, characterized in that: It also includes a blocking body. The extended structure is pivotally connected to the relay member corresponding to the driven portion and also has a blocking portion. The blocking body is arranged on the carrier corresponding to the blocking portion. The unlocking member drives the relay member to rotate in an unlocking direction. The relay member can rotate in the opposite direction to the unlocking direction through being driven and drive the extended structure so that the blocking portion is blocked by the blocking body and rotates in the opposite direction.

8. The double pull unlocking type hood lock according to claim 1, characterized in that: The lock assembly includes a lock tongue pivotally connected to the carrier and a lock rod that can be restricted by the lock tongue. The multiple steps of the relay include a first step and a second step protruding relative to the first step. The unlocking member has a pre-rotation state and a post-rotation state. The relay stops the lock tongue with the first step and stops the lock rod with the second step in the pre-rotation state and the first post-rotation state, respectively.

9. The double pull unlocking type hood lock according to claim 1, characterized in that: It also includes a lock hook, which is pivotally connected to the carrier. The unlocking member has a rotated state. In the second rotated state, the unlocking member indirectly drives the relay member to rotate to the second unlocking angle via the extension structure, and the lock hook hooks the relay member that has rotated to the second unlocking angle to maintain the second unlocking angle.

10. The double pull unlocking type hood lock according to claim 9, characterized in that: It also includes a top-up structure, the lock hook has a driven part, the top-up structure is arranged on the carrier corresponding to the driven part and has a retracted state, the top-up structure abuts against the driven part in the retracted state to drive the lock hook to unhook from the relay.

11. The double pull unlocking type hood lock according to claim 1, characterized in that: The carrier is also provided with a groove. The lock assembly comprises a lock rod connected to the engine cover. The lock rod has a predetermined closing position following the closing of the engine cover. The depth of the groove is much greater than the predetermined closing position to form an impact buffer length.

12. The double pull unlocking type hood lock according to claim 1, characterized in that: The unlocking member and the relay member are pivotally connected to the carrier by the same pivoting member.

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