CN112227849A - Vehicle door security lock with handle automatic return function - Google Patents

Abstract

The invention discloses a vehicle door security lock with a handle automatic return function, which comprises a seat body and a first locking structure arranged in the seat body, wherein the first locking structure comprises a first locking piece, a first lock cylinder, a first handle, a driving piece and a blocking piece; the first lock core is arranged on the first handle, the base body is provided with a blocking part, and the output end of the first lock core is connected with the blocking part. The vehicle door security lock with the handle automatic return function can lock the handle to achieve the purpose of locking, and has the advantages of simple structure and long service life.

Description

Vehicle door security lock with handle automatic return function

Technical Field

The present invention relates to a door security lock with a handle self-return function, and more particularly, to a door security lock with a handle self-return function for locking a handle to lock the door.

Background

The existing safety lock for automobile door generally comprises a bolt, a lock core and a handle. When the door is locked, the lock tongue is locked through the lock cylinder, so that the automobile door is locked; when the automobile door is unlocked, the lock tongue is released through the lock cylinder, then the handle is pulled, and the lock cylinder is driven to act through the handle, so that the automobile door is opened. However, since the lock cylinder of the security lock locks the bolt, the handle can be rotated by pulling the handle regardless of whether the lock cylinder locks the bolt. Therefore, when the latch bolt is locked by the lock cylinder, if the handle is frequently pulled or excessively pulled, the handle is easily damaged, and the service life of the handle is shortened.

Disclosure of Invention

The invention aims to provide a vehicle door security lock which locks a handle to achieve the purpose of locking, has simple structure and long service life, and has the function of automatically returning the handle.

In order to achieve the above object, the vehicle door security lock with the handle automatic return function provided by the invention comprises a seat body and a first locking structure arranged in the seat body, wherein the first locking structure comprises a first locking piece, a first lock cylinder, a first handle, a driving piece and a blocking piece, the first locking piece is arranged in the seat body in a sliding manner, one end of the first handle is pivoted to the seat body, the other end of the first handle is connected with the driving piece, the driving piece is provided with a driving inclined plane, the first locking piece is provided with a driving part, the driving part is provided with a matching inclined plane, and the driving inclined plane is in sliding fit with the matching inclined plane so as to push the first locking piece to slide; the first lock core is arranged on the first handle, the base body is provided with a blocking part, and the output end of the first lock core is connected with the blocking part, so that the first lock core drives the blocking part to be clamped on the blocking part when being locked, and further the first handle is forbidden to rotate, or the first lock core drives the blocking part to be separated from the blocking part when being unlocked, and further the first handle is allowed to rotate.

Compared with the prior art, the first lock core is arranged on the first handle, the blocking piece is connected to the output end of the first lock core, and the blocking part is arranged on the base body and matched with the blocking part, so that the blocking piece is clamped with the blocking part when the first lock core is locked, the purpose of locking the first handle is achieved, and the purpose of unlocking the first handle is achieved when the first lock core is unlocked; the structure is very simple, and the handle can be prevented from being pulled after the automobile door is locked, so that the impact of the handle is reduced, the handle is prevented from being damaged, and the service life of the handle is effectively prolonged and shortened. In addition, the driving part is provided with the driving inclined plane, and the driving part of the first locking part is provided with the matching inclined plane, so that the first locking part can push the first handle to automatically reset when resetting, and the use convenience can be improved.

Preferably, the first locking member has an elongated hole, the engaging inclined surface is disposed at one end of the elongated hole, and one end of the driving member has the driving inclined surface and extends into the elongated hole.

Preferably, the first locking structure further includes an elastic member, and the elastic member is disposed between the first locking member and the seat body and provides an elastic force for sliding the first locking member.

Preferably, the blocking member is a T-shaped head, the blocking portion is a locking groove, and the T-shaped head is capable of being inserted into and locked with the locking groove. Through the matching of the clamping groove and the T-shaped head, when the T-shaped head is aligned with the clamping groove, the T-shaped head can freely enter and exit the clamping groove, so that the purpose of releasing the first handle is achieved; when the T-shaped head and the clamping groove are staggered, the edge of the clamping groove can block the T-shaped head from entering and exiting, so that the purpose of locking the first handle is achieved; the structure is very simple, stable and reliable.

Preferably, the first locking structure further comprises a second handle pivoted to a side of the seat body opposite to the first handle, and one end of the second handle is connected to the first locking member.

Specifically, one end of the second handle is fixedly provided with a rotating part, the first locking part is provided with a butting part, the rotating part and the butting part are in sliding butting, and the rotating part can rotate around a central shaft of the second handle along with the action of the second handle so as to push the butting part to move the butting part of the butting part.

Preferably, the lock further comprises a second locking structure, the second locking structure includes a second locking member and a second lock cylinder, the second lock cylinder is disposed on the seat body, the output end of the second lock cylinder is connected to the second locking member, and the second locking member is slidably disposed on the seat body. Through setting up the second locking structure, can make the automobile door realize from inside back locking, and can use the key to open externally, improve reliability and the security of using.

Preferably, the first locking structure further comprises a locking device, and the first locking piece drives the locking device to lock or unlock.

Specifically, the locking device comprises a locking hook, a clamping piece, a first resetting piece, a second resetting piece and an unlocking piece, wherein the locking hook is pivoted on the base body, the first resetting piece provides an elastic force to enable the locking hook to rotate in the opening direction, the clamping piece is pivoted on the base body, and the second resetting piece provides an elastic force to enable the clamping piece to rotate in the direction of clamping the locking hook; the clamping piece is provided with a contact part, and the first locking piece can drive the unlocking piece so that the unlocking piece pushes the contact part to drive the clamping piece to be separated from the locking hook.

Specifically, one end of the unlocking piece is pivoted to the seat body, a pull rod is arranged between the other end of the unlocking piece and the first locking piece, and the pull rod can pull the unlocking piece to rotate around the pivoting center of the unlocking piece along with the movement of the first locking piece. The pull rod is arranged, so that the unlocking piece and the first locking piece can synchronously act, and the purpose of unlocking through linkage with the first handle is achieved.

Drawings

FIG. 1 is a perspective view of a first embodiment of a vehicle door security lock with handle self-return feature of the present invention.

Fig. 2 is an internal structure view of a first embodiment of the security lock of the vehicle door with the handle automatic return function according to the present invention.

Fig. 3 is an exploded view of a first embodiment of the door security lock with handle self-return feature of the present invention.

Fig. 4 is a perspective view of a seat body of a first embodiment of a vehicle door security lock with a handle self-return function according to the present invention.

FIG. 5 is a top view of the internal structure of a first embodiment of the door security lock with handle self-return feature of the present invention.

FIG. 6 is a bottom view of a first embodiment of the vehicle door security lock with handle self-return feature of the present invention.

FIG. 7 is a state diagram of a blocking member during locking of an embodiment of the vehicle door security lock with handle self-return feature of the present invention.

FIG. 8 is a state diagram of a blocking member during unlocking in an embodiment of the vehicle door security lock with handle self-return feature of the present invention.

FIG. 9 is a perspective view of a second embodiment of the door security lock with handle self-return feature of the present invention.

Fig. 10 is an internal structure view of a second embodiment of the security lock of the vehicle door with the handle self-return function according to the present invention.

FIG. 11 is an internal view of a second embodiment of the door security lock with handle self-return feature of the present invention when locked.

FIG. 12 is an internal state view of a second embodiment of the door security lock with handle self-return feature of the present invention when unlocked.

FIG. 13 is a state diagram of a locking device during locking for a second embodiment of a vehicle door security lock with handle self-return feature of the present invention.

FIG. 14 is a state diagram of a second embodiment of the door security lock with handle self-return feature of the present invention with the locking device unlocked.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.

As shown in fig. 1 to 5, the structure of the first embodiment of the present invention is shown. The vehicle door security lock 100 with the handle self-return function of the first embodiment includes a seat body 1 and a first locking structure 2 disposed in the seat body 1, where the first locking structure 2 includes a first locking member 21, a first lock core 22, a first handle 23, a blocking member 24, an elastic member 25 and a driving member 26. The first locking part 21 is arranged in the seat body 1 in a sliding mode, the sliding direction is transverse, a bolt is arranged at the front end of the first locking part 21, and the bolt can extend out of the seat body 1 to be used for locking an automobile door. The elastic element 25 is disposed between the first locking element 21 and the seat body 1, and provides an elastic force for the lock tongue of the first locking element 21 to extend out of the seat body 1, and the elastic element 25 is a compression spring. One end of the first handle 23 is pivoted to the base 1, and the other end of the first handle 23 is connected to the driving member 26, and a pivoting central shaft of the first handle 23 is transversely arranged. The driving member 26 is provided with a driving inclined surface 261, the first locking member 21 is provided with an elongated hole 211, the first locking member 21 is provided with a driving portion 212, the driving portion 212 is provided with a matching inclined surface 212a, the matching inclined surface 212a is located at one end of the elongated hole 211, and the driving member 26 extends into the elongated hole 211 to enable the driving inclined surface 261 to be in sliding fit with the matching inclined surface 212a, so that the first locking member 21 is pushed to slide.

Referring to fig. 3, 4, 7 and 8, the first lock cylinder 22 is disposed on the other end of the first handle 23, and the key hole of the first lock cylinder 22 is exposed on the surface of the first handle 23. The central axis of the first lock core 22 is vertically arranged. The base body 1 is provided with a blocking part 11, and the output end of the first lock core 22 is connected with the blocking part 24, so that the first lock core 22 drives the blocking part 24 to be clamped with the blocking part 11 when locked, and further the first handle 23 is prohibited from rotating, or the first lock core 22 drives the blocking part 24 to be separated from the blocking part 11 when unlocked, and further the first handle 23 is permitted to rotate.

As shown in fig. 2, 3, 7 and 8, the stopper 24 is a T-shaped head, the stopper portion 11 is an engaging groove, and the T-shaped head is inserted into and engaged with the engaging groove. Through the matching of the clamping groove and the T-shaped head, when the T-shaped head is aligned with the clamping groove, the T-shaped head can freely enter and exit the clamping groove, so that the purpose of releasing the first handle 23 is achieved; when the T-shaped head rotates for a certain angle and is staggered with the clamping groove, the edge of the clamping groove can block the T-shaped head from entering and exiting, so that the purpose of locking the first handle 23 is achieved; the structure is very simple, stable and reliable.

As shown in fig. 2, fig. 3 and fig. 6, the first locking structure 2 further includes a second handle 27, the second handle 27 is pivotally connected to a side of the seat body 1 opposite to the first handle 23, and a pivotal central axis of the second handle 27 is perpendicular to a pivotal central axis of the first handle 23. One end of the second handle 27 is connected to the first locking member 21. Specifically, one end of the second handle 27 is fixedly provided with a rotating portion 271, the first locking member 21 is provided with a butting portion 213, the rotating portion 271 slidably abuts against the butting portion 213, and the rotating portion 271 can rotate around the central axis of the second handle 27 along with the rotation of the second handle 27 to push the butting portion 213 to move, so as to achieve the purpose of pushing the first locking member 21 to unlock.

As shown in fig. 3 and 5, the vehicle door security lock 100 with the handle self-return function further includes a second locking structure 3, the second locking structure 3 includes a second locking member 31, a second key cylinder 32 and an operation knob 33, and a connecting rod 34 is disposed between the second locking member 31 and the second key cylinder 32. The second lock core 32 is disposed on the seat body 1 and has an output end pivotally connected to one end of the connecting rod 34. The keyhole of the second lock cylinder 32 is exposed out of the surface of the housing 1. The other end of the link 34 is pivotally connected to the second locking member 31. The second locking member 31 is slidably disposed on the seat 1. The operation knob 33 is connected to an output end of the second key cylinder 32. Through setting up second locking structure 3, can make the automobile door realize from the inside back lock of automobile, and can use the key to open externally, improve reliability and the security of using.

The working principle of the security lock of the present invention will be described in detail below with reference to fig. 7 and 8.

When the automobile door is in a locked state, the latch tongue of the first locking member 21 extends out of the seat body 1 under the elastic force of the elastic member 25, so as to lock the automobile door, and at this time, the first lock core 22 is also in a locked state. The T-shaped head is staggered with the elongated hole so as to be clamped with the elongated hole, and at this time, the first handle 23 cannot rotate, so that the driving piece 26 cannot drive the first locking piece 21 to move and unlock.

When the automobile door needs to be unlocked, a key is inserted into the first lock core 22, then the first lock core 22 is rotated, the output end of the first lock core 22 drives the T-shaped head to rotate, and the T-shaped head and the elongated hole are just right aligned. At this time, the first handle 23 can be unlocked and can freely rotate, at this time, the first handle 23 can be driven, the first handle 23 pushes the matching inclined surface 212a on the first locking member 21 through the driving inclined surface 261 of the driving member 26, so that the lock tongue of the first locking member 21 retracts into the seat body 1, and the automobile door is unlocked.

When the door is opened from the inside of the automobile, the second handle 27 can be directly pulled, the second handle 27 can be rotated at any time, so that the abutting portion 213 is pushed by the rotating portion 271 to move, and the abutting portion 213 can drive the lock tongue of the first locking member 21 to retract into the seat body 1. Thus. Passengers can open the door from the inside of the automobile at any time. In addition, the passenger in the vehicle interior can be unlocked or unlocked by the operation knob 33 of the second lock structure 3. If the lock is unlocked, the passenger outside the vehicle can only unlock the lock by inserting the key lock into the second lock cylinder 32.

Compared with the prior art, the first lock core 22 is arranged on the first handle 23, the blocking piece 24 is connected to the output end of the first lock core 22, the blocking part 11 is arranged on the seat body 1, so that the blocking piece 24 is matched with the blocking part 11, when the first lock core 22 is locked, the blocking piece 24 is clamped with the blocking part 11, the purpose of locking the first handle 23 is achieved, and when the first lock core 22 is unlocked, the purpose of unlocking the first handle 23 is achieved; the structure is very simple, and the handle can be prevented from being pulled after the automobile door is locked, so that the impact of the handle is reduced, the handle is prevented from being damaged, and the service life of the handle is effectively prolonged and shortened. In addition, the driving inclined surface 261 is provided on the driving member 26, and the matching inclined surface 212a is provided on the driving portion 212 of the first locking member 21, so that the first locking member 21 can push the first handle 23 to automatically reset when resetting, and thus, the convenience of use can be improved.

Referring to fig. 9 to 14, there is shown a structure of a door security lock 100' with a handle self-return function according to a second embodiment of the present invention. The vehicle door security lock 100 ' with the handle self-return function comprises a seat body 1 ' and a first locking structure 2 ' and a second locking structure 3 ' arranged in the seat body 1 '. The structure of the first locking structure 2 'and the second locking structure 3' and the connection relationship between the parts are basically the same as the structure of the first embodiment, and the difference is as follows: the first locking structure 2 ' further comprises a locking device 28, the first locking member 21 ' does not extend out of the lock tongue, and the first locking member 21 ' is used for driving the locking device 28 to lock or unlock. The method comprises the following specific steps:

referring to fig. 10 to 12, the locking device 28 includes a locking hook 281, an engaging member 282, a first resetting member 283, a second resetting member 284 and an unlocking member 285. The locking hook 281 is pivoted to the base 1' and the pivoting central axis is transversely arranged. The first restoring member 283 provides an elastic force to rotate the locking hook 281 in an opening direction, and the first restoring member 283 is a torsion spring. The engaging member 282 is pivotally connected to the base 1' and the pivotal center axis is transversely disposed. The second reset member 284 provides an elastic force to rotate the engaging member 282 in a direction of being held by the locking hook 281, and the second reset member 284 is a torsion spring. The engaging piece 282 has an engaging protrusion 282a, the locking hook 281 has an engaging position 281a, and when the engaging piece 282 is clamped on the locking hook 281 and the locking hook 281 is in the locking position, the engaging protrusion 282a is located at the engaging position 281 a. The locking hook 281 further has an unlocking position 281b, and when the engaging member 282 is held by the locking hook 281 and the locking hook 281 is in the open position, the engaging protrusion 282a is located at the unlocking position 281 b. The locking hook 281 is further provided with a protrusion 281c, and the protrusion 281c may push the engaging member 282 to rotate when the locking hook 281 rotates in the locking direction, so that the engaging protrusion 282a is separated from the unlocking position 281 b. When the locking hook 281 is completely locked, the second reset element 284 drives the engaging protrusion 282a to be engaged with the engaging position 281a and lock the locking hook 281, so as to achieve the purpose of automatic locking.

In addition, referring to fig. 10 and 13, the engaging member 282 has a contact portion 282b, and the first locking member 21' can drive the unlocking member 285 to push the unlocking member 285 against the contact portion 282b, so as to drive the engaging member 282 to disengage from the locking hook. Specifically, one end of the unlocking piece 285 is pivoted to the seat body 1 ', the pivoting central axis is vertically arranged, a pull rod 286 is arranged between the other end of the unlocking piece 285 and the first locking piece 21 ', and the pull rod 286 can pull the unlocking piece 285 to rotate around the pivoting center of the unlocking piece along with the movement of the first locking piece 21 '. The pull rod 286 is arranged, so that the unlocking piece 285 and the first locking piece 21' can act synchronously, and the purpose of unlocking through linkage with the first handle is achieved. The unlocking unit 285 has a pushing unit 285a, the pushing unit 285a is engaged with the contact unit 282b, and when the unlocking unit 285 rotates, the pushing unit 285a pushes the contact unit 282b to push the engaging unit 282 to be disengaged from the locking hook 281, so that the locking hook 281 is unlocked.

Referring to fig. 13 and 14, when the automobile door needs to be unlocked, a key is inserted into the first lock core 22 ', and then the first lock core 22 ' is rotated, so that the output end of the first lock core 22 ' drives the T-shaped head to rotate, and the T-shaped head is aligned with the elongated hole. At this time, the first handle 23 'is unlocked and can be freely rotated, and the first handle 23' is driven. The first handle 23 ' pushes the matching inclined surface on the first locking member 21 ' through the driving inclined surface of the driving member 26 ', so that the first locking member 21 slides in the seat body 1. The first locking member 21' slides to drive the pulling rod 286, so that the pulling rod 286 pulls the unlocking member 285. The unlocking member 285 rotates to drive the pushing portion 285a to push the contact portion 282b, so that the engaging member 282 rotates against the elastic force of the second reset member 284. The engaging member 282 can be disengaged from the locking hook 281, and the locking hook 281 is rotated by the first reset member 283 to disengage from the lock shaft 300 of the automobile, so as to unlock the automobile door.

The structures of the first lock cylinder and the second lock cylinder related to the vehicle door security lock with the handle automatic return function are well known to those skilled in the art, and detailed description is omitted here.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.

Claims (10)

1. The utility model provides a door safety protection lock with handle self return function which characterized in that: the locking structure comprises a seat body and a first locking structure arranged in the seat body, wherein the first locking structure comprises a first locking piece, a first lock cylinder, a first handle, a driving piece and a blocking piece, the first locking piece is arranged in the seat body in a sliding mode, one end of the first handle is pivoted to the seat body, the other end of the first handle is connected with the driving piece, a driving inclined plane is arranged on the driving piece, the first locking piece is provided with a driving part, a matching inclined plane is arranged on the driving part, and the driving inclined plane is in sliding fit with the matching inclined plane so as to push the first locking piece to slide; the first lock core is arranged on the first handle, the base body is provided with a blocking part, and the output end of the first lock core is connected with the blocking part, so that the first lock core drives the blocking part to be clamped on the blocking part when being locked, and further the first handle is forbidden to rotate, or the first lock core drives the blocking part to be separated from the blocking part when being unlocked, and further the first handle is allowed to rotate.

2. A door security lock with handle self-return function as claimed in claim 1, wherein: the first locking piece is provided with a long hole, the matching inclined plane is arranged at one end of the long hole, and the driving inclined plane is arranged at one end of the driving piece and extends into the long hole.

3. A door security lock with handle self-return function as claimed in claim 1, wherein: the first locking structure further comprises an elastic piece, and the elastic piece is arranged between the first locking piece and the seat body and provides an elastic force for enabling the first locking piece to slide.

4. A door security lock with handle self-return function as claimed in claim 1, wherein: the blocking piece is a T-shaped head, the blocking part is a clamping groove, and the T-shaped head can be inserted and clamped in the clamping groove.

5. A door security lock with handle self-return function as claimed in claim 1, wherein: the first locking structure further comprises a second handle, the second handle is pivoted to one side, opposite to the first handle, of the seat body, and one end of the second handle is connected with the first locking piece.

6. A vehicle door security lock with handle self-return function as claimed in claim 5, characterized in that: the one end of second handle is equipped with the rotating part fixedly, be equipped with on the first locking piece and support the top, the rotating part with support the top and be the sliding ground and contradict, the rotating part can be along with the action of second handle and rotate around the center pin of second handle, in order to promote support the top and remove.

7. A door security lock with handle self-return function as claimed in claim 1, wherein: the lock comprises a base body, and is characterized by further comprising a second locking structure, wherein the second locking structure comprises a second locking piece and a second lock cylinder, the second lock cylinder is arranged on the base body, the output end of the second lock cylinder is connected with the second locking piece, and the second locking piece is arranged on the base body in a sliding mode.

8. A door security lock with handle self-return function as claimed in claim 1, wherein: the first locking structure further comprises a locking device, and the first locking piece drives the locking device to lock or unlock.

9. A door security lock with handle self-return function as claimed in claim 8, wherein: the locking device comprises a locking hook, a clamping piece, a first resetting piece, a second resetting piece and an unlocking piece, wherein the locking hook is pivoted on the base body, the first resetting piece provides elastic force to enable the locking hook to rotate in the opening direction, the clamping piece is pivoted on the base body, and the second resetting piece provides elastic force to enable the clamping piece to rotate in the direction of clamping the locking hook; the clamping piece is provided with a contact part, and the first locking piece can drive the unlocking piece so that the unlocking piece pushes the contact part to drive the clamping piece to be separated from the locking hook.

10. A door security lock with handle self-return function as claimed in claim 9, wherein: one end of the unlocking piece is pivoted to the base, a pull rod is arranged between the other end of the unlocking piece and the first locking piece, and the pull rod can pull the unlocking piece to rotate around the pivoting center of the unlocking piece along with the movement of the first locking piece.

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