CN213144167U

CN213144167U - Safety tongue link gear

Info

Publication number: CN213144167U
Application number: CN202021269169.4U
Authority: CN
Inventors: 戴志刚
Original assignee: Shenzhen Rixiang Technology Co ltd
Current assignee: Shenzhen Rixiang Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-05-07
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a safety bolt linkage mechanism, which comprises a lock box, a lock bolt, a safety bolt and a safety plate, wherein the lock bolt, the safety bolt and the safety plate are accommodated in the lock box; wherein: one end of the lock tongue is provided with a shifting fork plate which is abutted against the lock tongue and drives the lock tongue to execute a door locking or unlocking instruction, and the lock tongue is provided with a stopping part towards the moving direction; the safety bolt is provided with a shifting block which is driven by the lock bolt to synchronously execute a door locking or unlocking instruction, the shifting block is arranged corresponding to the stopping part and is abutted against the stopping part in the process of executing the door locking or unlocking instruction by the lock bolt; the safety plate is movably arranged in the lock box, one end of the safety plate is abutted against the shifting fork plate, and the other end of the safety plate is driven by the shifting fork plate to extend into a position between the stopping part and the shifting block when a door locking instruction is executed; the utility model provides a safety tongue link gear is in participating in the locking of burglary-resisting door comparatively steadily with the safety tongue for improve the security of burglary-resisting door lock.

Description

Safety tongue link gear

Technical Field

The application relates to a lockset, in particular to a safety tongue linkage mechanism.

Background

The lock is an important safety device, and brings safety guarantee to the property of people. The principle of the door lock in the prior art is that a rotatable buckle hook is arranged in a lock shell, when a main tongue retracts into the lock shell, the buckle hook buckles the main tongue, when a door is closed, a door frame impacts an inclined tongue, the inclined tongue impacts the buckle hook to enable the buckle hook to rotate to be separated from the main tongue, and the main tongue extends out of the lock shell under the action of a spring to lock the door; when the lock is unlocked, the key is used to rotate the lock core to make the main bolt retract into the lock shell, and simultaneously the buckle is jacked up, and when the main bolt is completely retracted, the buckle falls into the groove of the main bolt under the action of the spring to buckle the main bolt again.

Although the lockset is convenient to use, the disadvantage is that the door lock without the safety device is easy to be pried open by force, and the thief uses a tool to extend into the gap of the door to force the main tongue into the lock shell to open the lock, so the anti-theft performance is not high, which brings great potential safety hazard to living.

Disclosure of Invention

The utility model discloses mainly to above problem, provided a safety tongue link gear, participated in the locking of burglary-resisting door comparatively steadily with the safety tongue for improve burglary-resisting door lock's security.

In order to achieve the above object, the utility model provides a safety tongue linkage mechanism, which comprises a lock box, a lock tongue, a safety tongue and a safety plate, wherein the lock tongue, the safety tongue and the safety plate are accommodated in the lock box; wherein:

one end of the lock tongue is provided with a shifting fork plate which is abutted against the lock tongue and drives the lock tongue to execute a door locking or unlocking instruction, and the lock tongue is provided with a stopping part towards the moving direction;

the safety bolt is provided with a shifting block which is driven by the lock bolt to synchronously execute a door locking or unlocking instruction, the shifting block is arranged corresponding to the stopping part and is abutted against the stopping part in the process of executing the door locking or unlocking instruction by the lock bolt;

the safety plate is movably arranged in the lock box, one end of the safety plate is abutted against the shifting fork plate, and the other end of the safety plate is driven by the shifting fork plate to extend into a position between the stopping part and the shifting block when a door locking instruction is executed.

Further, the spring bolt comprises the lock tongue body, spring bolt connecting rod and spring bolt baffle, the fixed locking plate that is provided with on the lock box, the lock tongue body is connected to the one end of spring bolt connecting rod, and the other end activity is worn out the spring bolt baffle is connected to the locking plate, the declutch shift plate sets between spring bolt baffle and locking plate, the cover is equipped with the drive on the spring bolt connecting rod the first promotion spring that the lock tongue body stretches out the lock box.

Furthermore, the safety tongue consists of a safety tongue body and a guide connecting rod, wherein the shifting block extends from the end face of the safety tongue body, a column head is arranged on the shifting block, one end of the guide connecting rod movably penetrates through the stop plate, the other end of the guide connecting rod is connected with the safety tongue body, and a second pushing spring for driving the safety tongue body to stretch out of the lock box is sleeved on the guide connecting rod.

Furthermore, the length of the lock bolt body extending out of the lock box is greater than the length of the safety bolt body extending out of the lock box.

Furthermore, the safety plate comprises a movable connecting part, a first connecting part, a second connecting part and a torsion spring, wherein the movable connecting part is provided with a movable shaft which is rotatably connected with the lock box, the first connecting part is arranged at one end of the movable connecting part and is provided with a rod handle extending outwards and a rod head extending into a position between the stop part and the shifting block, one end of the second connecting part is provided with an arc-shaped pull opening matched with the shifting fork plate, the other end of the second connecting part is connected with the movable connecting part and is arranged opposite to the first connecting part, the torsion spring is sleeved on the movable shaft, one end of the torsion spring is connected with the rod handle, and the other end of the torsion spring.

Furthermore, the shifting fork plate is provided with a shifting pivot hole which is arranged at one end and is movably connected with the lock box, a driving arm which is arranged at the other end and is arranged between the lock tongue baffle and the stop plate, and a shifting lug which is arranged at the position between the shifting pivot hole and the driving arm and extends downwards.

Furthermore, the lock also comprises a lock cylinder extending into the lock box, and a poking sheet which is matched with the poking lug and drives the poking fork plate to lock the door or unlock the door is arranged on the lock cylinder.

Furthermore, a shifting groove which is matched with the arc-shaped pull opening and used for linking the safety plate to unlock the lock bolt for limitation is also arranged on the shifting fork plate.

The invention provides a safety tongue linkage mechanism through improvement, compared with the prior art, the safety tongue linkage mechanism has the following improvements and advantages: the shifting fork plate is provided with a shifting groove for linking the action of the safety plate and a driving arm for executing a lock tongue unlocking instruction, under the condition that the unlocking instruction is not executed, the lock tongue is simply pushed or pried through external force, one end of the safety plate extends into a position between a stop part of the lock tongue and a shifting block of the safety tongue, and the lock tongue can be prevented from being continuously pressed back along the axial direction, so that the anti-theft safety function is realized; meanwhile, the transmission structure for linking the safety tongue and the lock tongue is simpler in safety structure, smoother in transmission process and higher in stability in the prior art; other advantages of the present invention are further clarified in the detailed description.

Drawings

Fig. 1 is a partial structural schematic view of an embodiment of a safety tongue linkage mechanism according to the present application.

Fig. 2 is a schematic structural diagram of the safety plate.

Fig. 3 is a schematic perspective view of the safety tongue.

Fig. 4 is a schematic perspective view of the fork plate.

Fig. 5 is a schematic diagram of the state of the safety plate and the safety tongue when the lock tongue is pried.

Fig. 6 is a schematic structural view during a normal unlocking process.

Fig. 7 is a schematic structural diagram after normal unlocking.

Reference numerals shown in the drawings:

10. a latch bolt; 11. a lock tongue body; 12. a bolt link; 13. a first urging spring; 14. a deadbolt guard; 110. a stopper portion;

20. a safety tongue; 21. shifting blocks; 22. a safety tongue body; 23. a guide link; 24. a second urging spring; 25. a column cap;

30. a safety plate; 31. a first connection portion; 32. a movable connection portion; 33. a second connecting portion; 34. a torsion spring; 311. a club head; 320. a movable shaft; 330. an arc-shaped drawing opening; 3100. a step opening; 3110. a stop surface; 3111. a circular arc surface;

40. a shifting fork plate; 41. a drive arm; 42. poking the projection; 401. poking the pivot hole; 402. a poking groove;

50. a lock cylinder; 51. a toggle sheet;

100. a lock case; 101. a stopper plate; 102. a lever shaft.

Detailed Description

The present invention will be described in detail below with reference to the attached drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. 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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The present embodiment provides a safety bolt linkage mechanism, as shown in fig. 1 to 7, including a lock box 100, a bolt 10 accommodated in the lock box 100; wherein, spring bolt 10 comprises lock tongue body 11, spring bolt connecting rod 12 and spring bolt baffle 14, the fixed jam plate 101 that is provided with on the lock box 100, lock tongue body 11 is connected to the one end of spring bolt connecting rod 12, and the other end activity is worn out the spring bolt baffle 14 is connected to jam plate 101, the cover is equipped with the drive on the spring bolt connecting rod 12 the first promotion spring 13 that lock tongue body 11 stretches out lock box 100.

The lock box 100 is further provided with a shifting fork plate 40, the shifting fork plate 40 is provided with a shifting pivot hole 401, a driving arm 41 and a shifting lug 42 (see fig. 4), the shifting pivot hole 401 is movably connected with the lock box 100, the driving arm 41 is arranged between the lock tongue baffle 14 and the stop plate 101, and when the shifting piece 51 on the lock core 50 contacts the shifting lug 42 and continues to push, the shifting fork plate 40 can drive the lock tongue 10 to retract into the lock box 100 to execute an unlocking action.

The lock box 100 is further provided with a safety bolt 20 and a safety plate 30 for limiting the bolt 10 to forcibly perform an unlocking action under the action of an external force, wherein the bolt 10 is provided with a stopping part 110 in the moving direction, the safety bolt 20 is provided with a shifting block 21 which is driven by the bolt 10 to synchronously perform a door locking or unlocking instruction, and the shifting block 21 extends towards the direction of the safety bolt 20 and is arranged corresponding to the stopping part 100.

When the lock is normally unlocked, as shown in fig. 6 and 7, the stop part 110 of the retracted lock tongue body 11 is abutted against the shifting block 21 and drives the shifting block 21 to move synchronously, so that linked unlocking is realized. When the lock is unlocked abnormally, as shown in fig. 5, an external force is continuously applied to the bolt body 11, and one end of the safety plate 30 is positioned between the stopping part 110 and the shifting block 21, so that the bolt body 11 is limited from continuously retracting, the anti-theft security function is realized, the external force is prevented from being forcibly pried, and the living security is improved.

Fig. 2 shows a specific structure of the safety plate 30 in this embodiment, which is composed of a movable connection portion 32, a first connection portion 31, a second connection portion 33 and a torsion spring 34, wherein the movable connection portion 32 is provided with a movable shaft 320 rotatably connected with the lock box 100, the first connection portion 31 is disposed at one end of the movable connection portion 32 and has a stem handle extending outwards and a stem head 311 extending between the stopping portion 110 and the dial 21, one end of the second connection portion 33 is provided with an arc-shaped pull opening 330, the other end is connected with the movable connection portion 32 and is disposed opposite to the first connection portion 31, the arc-shaped pull opening 330 is matched with a toggle groove 402 formed on the fork plate 40, the torsion spring 34 is sleeved on the movable shaft 320, one end of the torsion spring is hooked on a stepped opening 3100 of the stem handle, the other end is limited by the lever shaft 102 on the lock box 100, that is, when the fork plate 40 rotates, the toggle groove 402 drives the safety plate 30 to rotate clockwise around the movable shaft 320, the rod head 311 is withdrawn from the position between the stopping part 110 and the shifting block 21, so that the bolt body 11 can continue to retreat for unlocking; when the door is locked, the lever handle of the safety plate 30 is rotated counterclockwise under the elastic force of the torsion spring 34 to return to the original position until one end of the torsion spring 34 pushes against the lever shaft 320 to the maximum extent, so that the lever head 311 extends between the stopper 110 and the dial 21, thereby achieving the purpose of safe locking.

Fig. 3 is a schematic structural diagram of the safety tongue 20, which is composed of a safety tongue body 22 and a guide link 23, wherein a shifting block 21 extends from an end surface of the safety tongue body 22, a column head 25 is arranged on the shifting block, one end of the guide link 23 movably penetrates through the stop plate 101, the other end of the guide link 23 is connected with the safety tongue body 22, a second pushing spring 24 for driving the safety tongue body 22 to extend out of the lock box 100 is sleeved on the guide link 23, and the second pushing spring 24 automatically pushes the safety tongue body 22 out of the lock box 100 without external force.

In the above embodiment, in order to make the club head 311 smoothly extend into the space between the stopper 110 and the pick 21, or between the stopper 110 and the post head 25, the club head 311 has a smooth inner arc surface 3111 and an outer stopper surface 3110 parallel to the end surface of the stopper 110.

Preferably, the length of the lock tongue body 11 extending out of the lock box 100 is greater than the length of the safety tongue body 22 extending out of the lock box 100.

Preferably, the lock further comprises a lock cylinder 50 extending into the lock box 100, and the lock cylinder 50 is provided with a toggle piece 51 which is matched with the toggle projection 42 and drives the fork-moving plate 40 to lock or unlock the door.

The present invention is not limited to the above embodiments, and any embodiments mentioned in the description fall within the scope of the present invention.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.

Claims

1. A safety bolt linkage mechanism is characterized by comprising a lock box, a bolt, a safety bolt and a safety plate, wherein the bolt, the safety bolt and the safety plate are accommodated in the lock box; wherein:

2. The safety bolt linkage mechanism according to claim 1, wherein the bolt is composed of a bolt body, a bolt connecting rod and a bolt baffle, a stop plate is fixedly arranged on the lock box, one end of the bolt connecting rod is connected with the bolt body, the other end of the bolt connecting rod penetrates out of the stop plate and is connected with the bolt baffle, the shifting fork plate is arranged between the bolt baffle and the stop plate, and a first pushing spring for driving the bolt body to stretch out of the lock box is sleeved on the bolt connecting rod.

3. The safety tongue linkage mechanism according to claim 2, wherein the safety tongue comprises a safety tongue body and a guide connecting rod, wherein a shifting block extends from the end face of the safety tongue body, a column head is arranged on the shifting block, one end of the guide connecting rod movably penetrates through the stop plate, the other end of the guide connecting rod is connected with the safety tongue body, and a second pushing spring for driving the safety tongue body to extend out of the lock box is sleeved on the guide connecting rod.

4. The lock bolt linkage mechanism according to claim 3, wherein the length of the lock bolt body extending out of the lock box is greater than the length of the lock bolt body extending out of the lock box.

5. The safety tongue linkage mechanism according to claim 2 or 3, wherein the safety plate comprises a movable connecting part, a first connecting part, a second connecting part and a torsion spring, wherein the movable connecting part is provided with a movable shaft rotatably connected with the lock box, the first connecting part is arranged at one end of the movable connecting part and is provided with a rod handle extending outwards and a rod head extending between the stopping part and the shifting block, one end of the second connecting part is provided with an arc-shaped pull opening matched with the shifting fork plate, the other end of the second connecting part is connected with the movable connecting part and is arranged opposite to the first connecting part, the torsion spring is sleeved on the movable shaft, one end of the torsion spring is connected with the rod handle, and the other end of the torsion spring is limited by a rod shaft fixed on the.

6. The lock tongue linkage mechanism according to claim 5, wherein the shift fork plate has a shift pivot hole formed at one end and movably connected to the lock case, a driving arm formed at the other end and disposed between the lock tongue blocking plate and the locking plate, and a shift protrusion formed at a position between the shift pivot hole and the driving arm and extending downward.

7. The safety tongue linkage mechanism according to claim 6, further comprising a lock cylinder extending into the lock box, wherein the lock cylinder is provided with a toggle piece which is matched with the toggle projection and drives the fork plate to lock or unlock the door.

8. The safety bolt linkage mechanism according to claim 6, wherein the shift fork plate is further provided with a shift groove which is matched with the arc-shaped pull opening and used for linking the safety plate to unlock the lock bolt.