CN217001313U

CN217001313U - High lock body of security

Info

Publication number: CN217001313U
Application number: CN202220361710.7U
Authority: CN
Inventors: 奚海浩; 吕阳方
Original assignee: Zhejiang Tianyu Smart Home Co ltd
Current assignee: Zhejiang Tianyu Smart Home Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-07-19
Anticipated expiration: 2032-02-22

Abstract

The utility model relates to a lock body with high safety, which comprises a shell, wherein a lock cylinder, an oblique tongue and a transmission assembly are arranged on the shell, the lock body also comprises a safety tongue, the transmission assembly comprises a rotating shifting piece, a first reset spring, a bridge piece, a cam, a safety piece, a linkage piece and a second reset spring, the shell is provided with a first penetrating opening and a second penetrating opening, the rotating shifting piece is provided with a hook part, the first reset spring is used for driving the oblique tongue to penetrate out of the first penetrating opening to move, the bridge piece is positioned on the rotating track of the rotating shifting piece, the cam is positioned on the rotating track of the bridge piece, the linkage piece is slidably arranged on the shell, the second reset spring is a torsion spring, the second reset spring is provided with a first reset end and a second reset end, the safety bump is arranged on the safety piece, a limit block is arranged on the linkage piece, and a limit inclined plane is arranged on the safety piece. By adopting the scheme, the lock body which can realize that the latch bolt can be opened only through key control through the safety bump in the use state of the lock body is provided.

Description

High lock body of security

Technical Field

The utility model relates to a lock body with high safety.

Background

The lock body is a device for controlling the unlocking and locking of the door lock, and mainly plays a role in preventing burglary.

The existing lock body generally comprises a shell, wherein a lock cylinder, a latch bolt and a transmission assembly are arranged on the shell, so that the lock cylinder drives the transmission assembly to move under the control of a key, and finally the movement of the transmission assembly drives the latch bolt protruding out of the shell to move and retract into the shell for unlocking and unlocking.

The problem that current lock body exists lies in: the existing lock body has poor safety, and can directly adopt sheet objects such as cards and the like to push the latch bolt without a key so as to drive the latch bolt to move and recover into the shell for unlocking.

Therefore, how to improve the security of the lock body becomes a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a lock body which is high in safety and can realize that the latch bolt can be unlocked only through key control through a safety bump in the use state of the lock body.

In order to achieve the purpose, the utility model provides the following technical scheme: including the casing, install lock core, latch bolt and drive assembly on the casing, its characterized in that: the lock comprises a shell, a lock core, a lock tongue and a transmission assembly, wherein the transmission assembly comprises a rotating shifting piece, a first reset spring, a bridge piece, a cam, a safety piece, a linkage piece and a second reset spring, the rotating shifting piece, the bridge piece, the cam and the safety piece are rotatably arranged on the shell, the lock core is used for driving the rotating shifting piece to rotate, the latch tongue and the safety tongue are slidably arranged on the shell, the shell is provided with a first penetrating opening and a second penetrating opening through which the latch tongue and the safety tongue penetrate out of the shell, the rotating shifting piece is provided with a hook part for driving the latch tongue to move towards the shell, the first reset spring is used for driving the latch tongue to penetrate out of the first penetrating opening to move, the bridge piece is positioned on the rotating track of the rotating shifting piece, the cam is positioned on the rotating track of the bridge piece, the safety piece is positioned on the rotating track of the cam, the linkage piece is slidably arranged on the shell and is fixedly connected with the safety tongue, the second reset spring is a torsional spring, the second reset spring is installed in the casing, the second reset spring is provided with and is used for wearing out the second that the mouth was worn out to the insurance tongue towards cam pivoted first end that resets and be used for driving the insurance tongue and resets and hold, be provided with the insurance lug on the insurance piece, the rotation orbit of insurance lug overlaps each other with the orbit of sliding of oblique tongue, and when the insurance piece rotated towards the cam, the insurance lug rotated towards the orbit of sliding of oblique tongue, be provided with the stopper on the linkage piece, be provided with on the insurance piece and be used for restricting the insurance lug towards the spacing inclined plane of the orbit pivoted of sliding of oblique tongue with the stopper cooperation.

The utility model is further configured to: still include square tongue, locking piece, the square tongue slides and installs in the casing, the casing is provided with the third that supplies the square tongue to wear out the casing and wears the mouth, the locking piece rotates to be installed in the casing, the square tongue is provided with the drive guide rail that is the slope, be provided with on the locking piece and insert the drive inserted block of locating in the drive guide rail.

The utility model is further configured to: the locking piece is provided with an assembling hole along the rotating axial direction.

The utility model is further configured to: the lock is characterized by further comprising a sliding shifting piece, wherein the sliding shifting piece is arranged on the square bolt in a sliding mode, and the sliding shifting piece is used for being driven by the lock cylinder to push the rotating shifting piece to rotate.

The utility model is further configured to: when the square bolt penetrates out of the third penetrating opening, the sliding shifting piece and the lock cylinder are arranged in a staggered mode.

The utility model is further configured to: the sliding shifting piece is provided with at least two installation slide rails along the sliding direction of the sliding shifting piece relative to the square tongue, and the square tongue is provided with an installation insertion column inserted in the corresponding installation slide rail corresponding to each installation slide rail.

The utility model is further configured to: the rotating shifting piece is provided with a clamping groove, and the bridging piece is provided with a clamping block clamped in the clamping groove.

By adopting the technical scheme, 1, when the lock body is in a use state (namely a locking state), the safety tongue can be limited by the wall surface and slides into the shell, so that the linkage piece is driven to move, the second reset spring is deformed at the second reset end, the first reset end drives the safety piece to rotate, and the safety lug moves to the movement track of the latch tongue, so that if the latch tongue directly acts on the latch tongue to move towards the shell through an abnormal behavior at the moment, the latch tongue can not be opened under the limitation of the safety lug, the illegal opening prevention means is realized, and the safety is improved; 2. if the lock body needs to be unlocked, the lock core can be driven, the drive of the lock core can drive the rotation of the rotation shifting piece, so that the latch bolt is driven to enter the shell under the action of the hook part, and meanwhile, the rotation shifting piece sequentially drives the bridge piece, the cam and the safety piece to rotate, so that the movement track of the safety lug is staggered with that of the latch bolt, and effective unlocking is realized; 3. the arrangement of the limiting block and the limiting inclined plane enables the rotation track of the safety piece to be determined by the actual position of the linkage piece, the safety lug is limited to be dislocated with the motion track of the latch bolt in the state that the safety bolt penetrates out of the second penetrating opening, impact is prevented, and the protection effect is achieved.

Drawings

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

FIG. 1 is an assembly view of an embodiment of the present invention;

FIG. 2 is a front view of the housing with portions removed in accordance with an embodiment of the present invention;

FIG. 3 is a rear view of the embodiment of the present invention with a portion of the housing removed;

FIG. 4 is an assembly view of the rupture disc, the linkage plate, the second return spring, and the rupture tongue in accordance with an embodiment of the present invention;

FIG. 5 is an assembly view of the rupture disc, the linkage disc, the second return spring and the rupture tongue in accordance with an embodiment of the present invention;

FIG. 6 is a detail view of an embodiment of the present invention;

FIG. 7 is a detail view of the locking member in accordance with an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-7, the utility model discloses a lock body with high safety, which comprises a housing 1, wherein a lock core 2, a latch bolt 31, a transmission assembly and a safety bolt 32 are mounted on the housing 1, the transmission assembly comprises a rotary shifting piece 41, a first return spring 42, a gap bridge piece 43, a cam 44, a safety piece 45, a linkage piece 46 and a second return spring 47, the rotary shifting piece 41, the gap bridge piece 43, the cam 44 and the safety piece 45 are rotatably mounted on the housing 1, the axial direction of rotation is along the front-back direction, the lock core 2 is used for driving the rotary shifting piece 41 to rotate, the latch bolt 31 and the safety bolt 32 are slidably mounted on the housing 1 along the left-right direction, a first penetrating opening and a second penetrating opening through which are used for the latch bolt 31 and the safety bolt 32 to penetrate out of the housing 1 are arranged on the left side of the housing 1, a hook portion 411 for driving the latch bolt 31 to move towards the inside of the housing 1 is arranged at the left end of the rotary shifting piece 41, the first return spring 42 (in this embodiment, a torsion spring is used) is used for driving the latch bolt 31 to pass through the first through hole to move, the bridge piece 43 is located on the rotation track of the rotation shifting piece 41, the cam 44 is located on the rotation track of the bridge piece 43, the safety piece 45 is located on the rotation track of the cam 44, the linkage piece 46 is slidably mounted on the housing 1 in the left-right direction and fixedly connected with the safety bolt 32 in a clamping manner, the second return spring 47 is a torsion spring, the second return spring 47 is mounted on the housing 1, the second return spring 47 is provided with a first return end 471 for rotating the safety piece 45 towards the cam 44 and a second return end 472 for driving the safety bolt 32 to pass through the second through hole, in addition, the safety piece 45 is provided with a safety bump 451, the rotation track of the safety bump 451 is overlapped with the sliding track of the latch bolt 31, when the safety piece 45 rotates toward the cam 44, the safety protrusion 451 rotates toward the sliding track of the latch tongue 31, the link piece 46 is provided with a limit block 461, and the corresponding safety piece 45 is provided with a limit inclined surface 452 which is matched with the limit block 461 to limit the rotation of the safety protrusion 451 toward the sliding track of the latch tongue 31, and the inclined surface gradually inclines downward from left to right.

Therefore, 1, when the lock body is in a use state (namely, a locked state), the safety tongue 32 is limited by a wall surface (a door wall, a cabinet wall and the like) and slides into the housing 1, so that the linkage piece 46 is driven to move, the second reset spring 47 deforms at the second reset end 472 to enable the first reset end 471 to drive the safety piece 45 to rotate, and the safety bump 451 moves to the movement track of the latch tongue 31, so that if the latch tongue 31 directly acts on the housing 1 through an abnormal behavior at the moment, the latch tongue 31 cannot be opened due to the limitation of the safety bump 451, and an illegal opening prevention means is realized for protection, and the safety is improved; 2. if the lock body needs to be unlocked, the lock core 2 can be driven, the driving of the lock core 2 can drive the rotation of the rotation shifting piece 41, so that the latch bolt 31 is driven to enter the shell 1 under the action of the hook part 411, and meanwhile, the rotation shifting piece 41 sequentially drives the bridge piece 43, the cam 44 and the safety piece 45 to rotate, so that the movement track of the latch bolt 31 is dislocated with the rotation of the safety bump 451, and effective unlocking is realized; 3. the arrangement of the limiting block 461 and the limiting inclined surface 452 enables the rotation track of the safety piece 45 to be determined by the actual position of the linkage piece 46, so that the safety bump 451 is limited to be dislocated with the motion track of the latch bolt 31 in the state that the safety bolt 32 penetrates through the second through hole, impact is prevented, and a protection effect is achieved.

In addition, the present embodiment further includes a square tongue 33 and a locking member 48, wherein the square tongue 33 is slidably mounted in the housing 1 along the left-right direction, a third through hole through which the square tongue 33 passes out of the housing 1 is disposed at the left side of the housing 1, the locking member 48 is rotatably mounted in the housing 1, the axial direction of rotation is along the front-back direction, the square tongue 33 is provided with an inclined driving rail 331, and the locking member 48 is provided with a driving insertion block 481 inserted in the driving rail 331, so that the driving insertion block 481 can be driven to move by performing rotation control of the locking member 48, and the sliding of the square tongue 33 can be realized by matching the driving insertion block 481 with the driving rail 331, thereby further improving the safety of locking.

Preferably, the locking member 48 in this embodiment has a mounting hole 482 formed along the axial direction of rotation, so that the outer control tongue 33 can be realized by mounting the mating fitting to the mounting hole 482.

In addition, the present embodiment further includes a sliding shifting piece 49, the sliding shifting piece 49 is slidably disposed on the bolt 33 along the vertical direction, the sliding shifting piece 49 is driven by the lock cylinder 2 to push the rotating shifting piece 41 to rotate, and therefore, the sliding shifting piece 49 performs the linkage of the lock cylinder 2 and the rotating shifting piece 41.

Preferably, in the present embodiment, when the square bolt 33 penetrates through the third opening, the sliding plectrum 49 is arranged in a staggered manner with respect to the lock cylinder 2, so that when the square bolt 33 penetrates through the third opening to lock, the lock cylinder 2 cannot be driven by a key to unlock the latch bolt 31, thereby further improving the safety.

Preferably, the sliding dialing piece in this embodiment is provided with at least two mounting slide rails 491 (in this embodiment, 2 are adopted, and are vertically arranged) along the sliding direction of the sliding dialing piece relative to the square tongue 33, and the square tongue 33 is provided with mounting insertion posts 332 inserted into the corresponding mounting slide rails 491 corresponding to each mounting slide rail 491, so that the cooperation of the mounting insertion posts 332 and the mounting slide rails 491 improves the motion stability of the sliding dialing piece 49.

Preferably, the rotating paddle 41 in this embodiment is provided with a clamping groove 412, and the bridging sheet 43 is provided with a clamping block 431 clamped in the clamping groove 412, wherein the shape of the clamping groove 412 is larger than that of the clamping block 431, so that the rotating paddle 41 and the bridging sheet 43 are simultaneously rotated and adapted, and therefore, the bridging sheet 43 and the rotating paddle 41 are linked to improve the stability of linkage, and the bridging sheet 43 is prevented from moving freely between the rotating paddle 41 and the cam 44, so as to reduce noise effectively.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a high lock body of security, includes the casing, installs lock core, oblique tongue and drive assembly on the casing, its characterized in that: the lock comprises a shell, a lock core, a lock tongue and a transmission assembly, wherein the transmission assembly comprises a rotating shifting piece, a first reset spring, a bridge piece, a cam, a safety piece, a linkage piece and a second reset spring, the rotating shifting piece, the bridge piece, the cam and the safety piece are rotatably arranged on the shell, the lock core is used for driving the rotating shifting piece to rotate, the latch tongue and the safety tongue are slidably arranged on the shell, the shell is provided with a first penetrating opening and a second penetrating opening through which the latch tongue and the safety tongue penetrate out of the shell, the rotating shifting piece is provided with a hook part for driving the latch tongue to move towards the shell, the first reset spring is used for driving the latch tongue to penetrate out of the first penetrating opening to move, the bridge piece is positioned on the rotating track of the rotating shifting piece, the cam is positioned on the rotating track of the bridge piece, the safety piece is positioned on the rotating track of the cam, the linkage piece is slidably arranged on the shell and is fixedly connected with the safety tongue, the second reset spring is a torsional spring, the second reset spring is installed in the casing, the second reset spring is provided with and is used for wearing out the second that the mouth was worn out to the insurance tongue towards cam pivoted first end that resets and be used for driving the insurance tongue and resets and hold, be provided with the insurance lug on the insurance piece, the rotation orbit of insurance lug overlaps each other with the orbit of sliding of oblique tongue, and when the insurance piece rotated towards the cam, the insurance lug rotated towards the orbit of sliding of oblique tongue, be provided with the stopper on the linkage piece, be provided with on the insurance piece and be used for restricting the insurance lug towards the spacing inclined plane of the orbit pivoted of sliding of oblique tongue with the stopper cooperation.

2. A lock body with high security according to claim 1, wherein: still include square tongue, locking piece, the square tongue slides and installs in the casing, the casing is provided with the third that supplies the square tongue to wear out the casing and wears the mouth, the locking piece rotates to be installed in the casing, the square tongue is provided with the drive guide rail that is the slope, be provided with on the locking piece and insert the drive inserted block of locating in the drive guide rail.

3. A lock body with high security according to claim 2, characterized in that: the locking piece has seted up the pilot hole along the pivoted axial.

4. A lock body with high security according to claim 2, characterized in that: the lock is characterized by further comprising a sliding shifting piece, wherein the sliding shifting piece is arranged on the square bolt in a sliding mode, and the sliding shifting piece is used for being driven by the lock cylinder to push the rotating shifting piece to rotate.

5. A high lock body of security according to claim 4, characterized in that: when the square bolt penetrates out of the third penetrating opening, the sliding shifting piece and the lock cylinder are arranged in a staggered mode.

6. A high lock body of security according to claim 4, characterized in that: the sliding shifting piece is provided with at least two installation slide rails along the sliding direction of the sliding shifting piece relative to the square tongue, and the square tongue is provided with an installation insertion column inserted in the corresponding installation slide rail corresponding to each installation slide rail.

7. A lock body with high security according to claim 1, wherein: the rotating shifting piece is provided with a clamping groove, and the bridging piece is provided with a clamping block clamped in the clamping groove.