CN111425070A - Anti-theft door lock with triggering type locking function - Google Patents

Abstract

The invention relates to a security door lock with a triggering type locking function, which comprises a lock body, wherein a latch bolt assembly and a latch bolt toggle mechanism are arranged in the lock body, the latch bolt assembly comprises a latch bolt and a latch bolt transmission part, the latch bolt toggle mechanism can toggle the latch bolt transmission part to enable the latch bolt to be locked in an extending mode or unlocked in a retracting mode, a latch bolt locking mechanism is further arranged in the lock body and comprises a locking component, a locking triggering component, a triggering component spring and a locking releasing component, the triggering component spring is used for enabling the locking triggering component to keep an extending trend, one end of the locking component is rotatably arranged, the other end of the locking component is a free end, a driving abutting block is further arranged at the rotatably arranged end of the locking component, one end of the locking releasing component is connected with the latch bolt toggle mechanism, and an abutting convex part and an abutting concave part which can be matched with the driving abutting block in. The invention can realize automatic locking when the door is closed, thereby ensuring that people do not need to lock the door by a key when going out, and having the advantages of convenient use, safety, reliability and the like.

Description

Anti-theft door lock with triggering type locking function

Technical Field

The invention relates to the technical field of locks, in particular to an anti-theft door lock with a triggering type locking function.

Background

In the prior art, a security door lock is generally provided with a lock bolt and a latch bolt in a lock body. The main locking function of the anti-theft door is a lock bolt which can extend out of the lock body and be inserted into a lock bolt hole in the door frame, so that the anti-theft door is locked. The latch bolt is normally in a state of extending out of the lock body, and in the door closing process, the latch bolt is firstly pushed by the door frame to enter the lock body, and after the door is closed in place, the latch bolt still extends out of the lock body under the pushing of a pushing spring in the latch bolt assembly and is inserted into a latch bolt hole in the door frame. Some anti-theft door locks, the latch bolt can also be used as the locking piece of the anti-theft door, but when the latch bolt is simply used as the locking piece, the insertion piece can be inserted into the gap between the door and the door frame, so that the door can be easily opened, and therefore, the safety of the locking mode is poor. However, to lock the lock bolt in the anti-theft door, the lock cylinder is usually rotated by a key, and then the lock bolt can extend out of the lock body.

Therefore, it is important for those skilled in the art to develop a lock that can automatically trigger the locking of the bolt or the latch bolt when the door is closed.

There are some electron trigger formula locks on the market at present, though solved the loaded down with trivial details of manual locking, nevertheless have certain safe risk, and electron trigger mechanism receives external influence great, and work is unreliable.

Disclosure of Invention

The invention aims to provide a security door lock with a trigger type locking function, which can realize automatic locking when closing a door, further ensure that people do not need to manually lock the door by a key when going out, simplify the operation and ensure the use safety and reliability.

The purpose of the invention is realized by the following technical scheme:

a kind of burglar-proof door lock with triggering type locking and locking functions, including the lock body, there are oblique bolt assemblies, oblique bolt toggle mechanisms in the said lock body, the said oblique bolt assembly includes oblique bolt and oblique bolt drive part, the said oblique bolt toggle mechanism can toggle the said oblique bolt drive part and make the said oblique bolt extend and lock or retract and unlock, lock the side wall to have for the said oblique bolt extend or retract first opening on the side wall of side of said lock body; the lock body is internally provided with a latch bolt locking mechanism, the latch bolt locking mechanism comprises a locking part, a locking triggering part, a triggering part spring and a locking releasing part, a second opening for the locking triggering part to extend outwards or retract inwards is arranged on the side wall of the locking side of the lock body, the triggering part spring is used for enabling the locking triggering part to keep an extending trend, one end of the locking part is rotatably arranged, the other end of the locking part is a free end, the rotatably arranged end of the locking part is also provided with a transmission abutting block, one end of the locking releasing part is connected with the latch bolt toggle mechanism, and the other end of the locking releasing part is provided with an abutting convex part and an abutting concave part which can be in switching fit with the transmission abutting block; when the inclined tongue is in an outward extending and locking state, the locking releasing component is matched with the transmission abutting block in an abutting mode through the abutting concave part, at the moment, the locking component is triggered to rotate through the inward retraction action of the locking triggering component, the free end of the locking component is enabled to rotate to the rear side of the inclined tongue to be matched with the backstop of the inclined tongue in a rotating mode, and the inclined tongue is prevented from being pried by foreign matters to retract inwards; when the latch bolt toggle mechanism toggles the latch bolt transmission part to do unlocking movement, the locking releasing part moves along with the latch bolt and is switched to be in abutting fit with the transmission abutting block by the abutting convex part, so that the locking part rotates reversely, the free end of the locking part rotates away from the rear side of the latch bolt to be disengaged from the rear side of the latch bolt, and the latch bolt can be retracted inwards to unlock according to the toggle of the latch bolt toggle mechanism to the latch bolt transmission part.

Furthermore, the inclined tongue locking mechanism further comprises a torsion spring, the torsion spring is sleeved on a torsion spring fixing shaft preset in the lock body, one end of the torsion spring is connected with the locking part, and the other end of the torsion spring is connected with the locking triggering part.

Furthermore, the front end of the locking triggering component is in a pointed shape, the tail end of the locking triggering component is provided with a positioning sleeve rod, and a triggering component spring is sleeved on the positioning sleeve rod and is in a compressed state when the locking triggering component is retracted.

Furthermore, the abutting convex part is a plane convex part arranged facing the transmission abutting block, the abutting concave part is an inclined plane concave part formed by inclining from the tail end of the plane convex part to the direction far away from the transmission abutting block, and the abutting matching surface of the transmission abutting block is an inclined plane structure corresponding to the inclined plane concave part.

Furthermore, the locking part is located between the latch bolt assembly and the locking triggering part, an avoiding groove which penetrates through the latch bolt in the longitudinal direction is formed in the surface of one side, facing the locking part, of the latch bolt, and a bayonet is formed in the free end of the locking part and is matched with a backstop on one side of the rear end of the latch bolt when the latch bolt is in an extending and locking state.

Furthermore, the latch bolt shifting mechanism comprises a first latch bolt shifting block and a second latch bolt shifting block, the first latch bolt shifting block and the second latch bolt shifting block are arranged in a sliding manner and are respectively matched and connected with the latch bolt transmission part, the sliding of the first latch bolt shifting block and the second latch bolt shifting block can shift the latch bolt transmission part to enable the latch bolt to be locked in an extending manner or unlocked in a retracting manner, a driving motor for driving the first latch bolt shifting block to slide and a first shifting shaft and a second shifting shaft which can respectively shift the second latch bolt shifting block to slide are further arranged in the lock body, the first shifting shaft is connected with an inner handle arranged on one side of the outer portion of the lock body, and the second shifting shaft is in transmission connection with the lock head arranged on the other side of the outer portion of the lock body through a transmission rod.

Furthermore, the first latch bolt shifting block and the second latch bolt shifting block are arranged in parallel front and back along the unlocking movement direction of the latch bolt assembly, a sliding rail for the first latch bolt shifting block and the second latch bolt shifting block to slide is arranged in the lock body, the backward sliding of the first latch bolt shifting block can push the second latch bolt shifting block to slide backward along with the first latch bolt shifting block, the forward sliding of the second latch bolt shifting block can push the first latch bolt shifting block to slide forward along with the first latch bolt shifting block, a reset spring for enabling the second latch bolt shifting block to keep a forward trend is arranged on one side of the second latch bolt shifting block, which is back to the first latch bolt shifting block, and meanwhile, one end of the locking releasing component is connected with the second latch bolt shifting block, and the locking releasing component can also slide along with the second latch bolt shifting block.

Furthermore, the latch bolt transmission part comprises a latch bolt rod, a first connecting block, a second connecting block, a first compression spring and a second compression spring, the front end of the latch bolt rod is connected with the latch bolt, the tail end of the latch bolt rod is provided with a stop cap, the first connecting block and the second connecting block are sleeved on the latch bolt rod at intervals from front to back, the first connecting block is clamped with the first latch bolt shifting block, the second connecting block is clamped with the second latch bolt shifting block, the first compression spring is sleeved at the front part of the latch bolt rod, the second compression spring is sleeved at the tail part of the latch bolt rod, the front end of the first compression spring is abutted against the latch bolt, the rear end of the first compression spring is abutted against the first connecting block, and the front end of the second compression spring is abutted against the second connecting block and the rear end of the stop cap.

Furthermore, the first latch bolt shifting block is provided with strip-shaped teeth arranged along the unlocking movement direction of the latch bolt assembly, the output end of the driving motor is provided with a gear, and the gear is meshed with the strip-shaped teeth.

Further, a safety tongue assembly is further arranged in the lock body and comprises a safety tongue and a safety tongue pull plate, a third opening for extending or retracting the safety tongue is formed in the side wall of the upper locking side of the lock body, the front end of the safety tongue pull plate is connected with the safety tongue, a longitudinal sliding groove is formed in the tail end of the safety tongue pull plate and is slidably sleeved on a limiting rod preset in the lock body, a transverse sliding groove located between the longitudinal sliding groove and the safety tongue is further formed in the safety tongue pull plate, the safety tongue control assembly further comprises a safety tongue control assembly, the safety tongue control assembly comprises a control knob, a swing arm and a shift lever, the control knob is rotatably mounted on the lock body, the operating end of the control knob is exposed out of the lock body, the connecting end of the control knob extends into the lock body, one end of the swing arm is fixed at the connecting end of the control knob, the other end of the swing arm is connected with the shifting lever, and the shifting lever is movably sleeved on the transverse sliding chute.

Compared with the prior art, the invention has the following beneficial effects:

firstly, when the anti-theft door lock is closed, the locking component can be automatically triggered to lock the latch bolt which extends and is locked, so that the latch bolt is prevented from being pried by foreign matters such as a clamping piece and retracting inwards from a door slot to cause abnormal unlocking, therefore, the safety and the reliability of the anti-theft door lock when the latch bolt is locked can be improved, and therefore, when people go out and lock, the door only needs to be closed, and the situation that the lock bolt extends and is locked by controlling a key after the door is closed in the prior art is not needed, so that the locking operation of people when going out is effectively simplified, the potential safety hazard caused by forgetting to use the key to lock is avoided, and the anti-theft door lock has the advantages of convenience in use, safety, reliability, good user experience and the like.

And secondly, the locking and unlocking of the locking and locking mechanism of the latch bolt are realized by adopting a lever principle, the structure is simple, convenient and reliable, the sensitivity is high, and the large-scale popularization and application of products are facilitated.

Moreover, the invention has the locking and locking function of the latch bolt, so that a lock bolt and a control mechanism thereof are not required to be additionally designed in the anti-theft lock, thereby greatly simplifying the structure of the lock body and reducing the production cost.

Drawings

Fig. 1 is a perspective view of the security door lock of the present invention.

Fig. 2 is an exploded view of the security door lock of the present invention.

Fig. 3 is a schematic view of the internal structure of the lock body of the anti-theft door lock of the invention.

Fig. 4 is an assembly view of the latch assembly and the unlocking and locking control mechanism part thereof in the antitheft door lock of the present invention.

Fig. 5 is a first exploded view of the lock body of the security door lock of the present invention.

Fig. 6 is a second exploded view of the lock body of the security door lock of the present invention.

Fig. 7 is a schematic structural diagram of a safety bolt assembly and a safety bolt control assembly in the anti-theft door lock of the invention.

Fig. 8 is a first exploded view of the lock head of the security door lock of the present invention.

Fig. 9 is a second exploded view of the lock head of the security door lock of the present invention.

Fig. 10 is an exploded view of the inner handle, the first shaft, the second shaft and the lock of the security door lock of the present invention.

Fig. 11 is a schematic structural view of the security door lock of the present invention mounted on a door body.

Detailed Description

The present invention will be described in further detail with reference to the following examples, which are given in the accompanying drawings.

As shown in fig. 1 to 11, an anti-theft door lock with a trigger-type locking function according to an embodiment of the present invention includes a lock body 1, a latch bolt assembly 2 and a latch bolt toggle mechanism 3 are disposed in the lock body 1, the latch bolt assembly 2 includes a latch bolt 21 and a latch bolt transmission portion 22, the latch bolt toggle mechanism 3 can toggle the latch bolt transmission portion 22 to make the latch bolt 21 extend outward for locking or retract inward for unlocking, and a first opening 101 for the latch bolt 21 to extend outward or retract inward is disposed on a side wall of a locking side of the lock body 1. The lock body 1 is also internally provided with a latch bolt locking and locking mechanism 4, the latch bolt locking and locking mechanism 4 comprises a locking component 41, a locking trigger component 42, a trigger component spring 43 and a locking release component 44, a locking side wall of the lock body 1 is provided with a second opening 102 for the locking trigger component 42 to extend outwards or retract inwards, the trigger component spring 43 is used for enabling the locking trigger component 42 to keep an extending trend, one end of the locking component 41 is rotatably arranged, the other end is a free end, the rotatably arranged end of the locking component 41 is also provided with a transmission abutting block 411, one end of the locking release component 44 is connected with the latch bolt toggle mechanism 3, and the other end of the locking release component 44 is provided with an abutting convex part 441 and an abutting concave part 442 which can be in switching fit with the transmission abutting block.

As described above, when the latch bolt 21 is in the outward-extending locked state (i.e. when the anti-theft door is closed), the lock releasing member 44 is in abutting engagement with the transmission abutting block 411 through the abutting recess 442, and at this time, the lock triggering member 42 is abutted by the door frame to generate the inward-retracting action, so as to trigger the lock member 41 to rotate, and the free end of the lock member 41 is rotated to the rear side of the latch bolt 21 to be in abutting engagement with the latch bolt, so as to prevent the latch bolt 21 from being pried by a foreign object to retract inward, thereby preventing abnormal unlocking. When the latch bolt toggle mechanism 3 toggles the latch bolt transmission part 22 to perform an unlocking motion, the lock releasing member 44 moves along with the latch bolt and is switched to be in abutting fit with the transmission abutting block 411 through the abutting convex part 441, so that the lock member 41 rotates reversely, and the free end of the lock member 41 rotates away from the rear side of the latch bolt 21 to be disengaged from the rear side of the latch bolt, so that the latch bolt 21 can be retracted and unlocked according to the toggle of the latch bolt toggle mechanism 3 to the latch bolt transmission part 22.

Further, the latch bolt locking mechanism 4 further includes a torsion spring 45, the torsion spring 45 is sleeved on a torsion spring fixing shaft 450 preset in the lock body 1, one end of the torsion spring 45 is connected with the locking part 41, and the other end is connected with the locking triggering part 42. When the door is closed, the retraction of the locking trigger member 42 triggers the locking member 41 to rotate through the transmission of the torsion spring 45. In the structure, the transmission is realized through the torsion spring 45, so that the transmission sensitivity and reliability can be improved, and the transmission structure can be simplified.

In this embodiment, the front end of the locking triggering component 42 is in a pointed shape, so as to reduce the contact area when the locking triggering component 42 abuts against the doorframe, and improve the sensitivity and reliability of the retraction action generated when the locking triggering component 42 abuts against the doorframe. The tail end of the locking triggering component 42 is provided with a positioning loop bar 421, and the triggering component spring 43 is sleeved on the positioning loop bar 421 and is in a compressed state when the locking triggering component 42 is contracted.

In this embodiment, the abutting convex portion 441 is a planar convex portion disposed facing the transmission abutting block 411, the abutting concave portion 442 is an inclined concave portion formed by inclining from the tail end of the planar convex portion to a direction away from the transmission abutting block 411, and the abutting mating surface of the transmission abutting block 411 is an inclined surface structure corresponding to the inclination angle of the inclined concave portion. This structure can improve the accuracy and sensitivity of the lock releasing operation of the lock member 41.

In this embodiment, the locking member 41 is located between the latch assembly 2 and the locking trigger member 42, a longitudinally penetrating avoiding groove 211 is provided on a side surface of the latch 21 facing the locking member 41, a bayonet 412 is provided at a free end of the locking member 41, and the bayonet 412 is engaged with a side of a rear end of the latch 21 when the latch 21 is in an extended and locked state, and specifically, the latch 21 is stopped by the bayonet 412 being engaged with a side of the rear end of the latch 21 close to the locking member 41.

In this embodiment, the latch bolt toggle mechanism 3 includes a first latch bolt toggle block 31 and a second latch bolt toggle block 32, both the first latch bolt toggle block 31 and the second latch bolt toggle block 32 are slidably disposed and respectively connected to the latch bolt transmission part 22 in a matching manner, and both the first latch bolt toggle block 31 and the second latch bolt toggle block 32 can toggle the latch bolt transmission part 22 to lock the latch bolt 21 in an extending manner or unlock the latch bolt in a retracting manner. The lock body 1 is also internally provided with a driving motor 5 for driving the sliding of the first latch bolt shifting block 31, and a first shifting shaft 6 and a second shifting shaft 7 which can respectively shift the sliding of the second latch bolt shifting block 32, wherein the first shifting shaft 6 is connected with an inner handle 8 arranged on one side of the outside of the lock body 1, and the second shifting shaft 7 is in transmission connection with a lock head 9 arranged on the other side of the outside of the lock body 1 through a transmission rod 70.

Further, the first latch bolt shifting block 31 and the second latch bolt shifting block 32 are arranged side by side front and back along the unlocking movement direction of the latch bolt assembly 2, a slide rail 10 for sliding the first latch bolt shifting block 31 and the second latch bolt shifting block 32 is arranged in the lock body 1, the backward sliding of the first latch bolt shifting block 31 can push the second latch bolt shifting block 32 to slide backward along with the slide rail, the forward sliding of the second latch bolt shifting block 32 can push the first latch bolt shifting block 31 to slide forward along with the slide rail, a return spring 320 for keeping the second latch bolt shifting block 32 in a forward trend is arranged on one side of the second latch bolt shifting block 32, which is back to the first latch bolt shifting block 31, meanwhile, one end of the locking releasing component 44 is connected with the second latch bolt shifting block 32, and the sliding of the second latch bolt shifting block 32 can also make the locking releasing component 44 slide along with the slide rail.

In this embodiment, the latch bolt transmission part 22 includes a latch bolt rod 221, a first connecting block 222, a second connecting block 223, a first compression spring 224 and a second compression spring 225, the front end of the latch bolt rod 221 is connected with the latch bolt 21, the tail end of the latch bolt rod 221 is provided with a stop cap 2210, the first connecting block 222 and the second connecting block 223 are sleeved on the latch bolt rod 221 at intervals in the front-back direction, the first connecting block 222 is clamped with the first latch bolt shifting block 31, the second connecting block 223 is clamped with the second latch bolt shifting block 32, the first compression spring 224 is sleeved on the front portion of the latch bolt rod 221, the second compression spring 225 is sleeved on the tail portion of the latch bolt rod 221, the front end of the first compression spring 224 abuts against the latch bolt 21, the rear end abuts against the first connecting block 222, the front end of the second compression spring 225 abuts against the second connecting block 223, and the rear end abuts against the stop cap 2210.

In this embodiment, the first latch bolt shifting block 31 is provided with a bar-shaped tooth 311 arranged along the unlocking movement direction of the latch bolt assembly 2, the output end of the driving motor 5 is provided with a gear 501, and the gear 501 is engaged with the bar-shaped tooth 311, so that the first latch bolt shifting block 31 can be driven to slide back and forth.

The lock body 1 is further provided with a safety tongue assembly 11, the safety tongue assembly 11 includes a safety tongue 111 and a safety tongue pull plate 112, a third opening 103 for the safety tongue 111 to extend outward or retract inward is formed in the side wall of the locking side of the lock body 1, the front end of the safety tongue pull plate 112 is connected with the safety tongue 111, the tail end of the safety tongue pull plate 112 is provided with a longitudinal sliding groove 1121, the longitudinal sliding groove 1121 is slidably sleeved on a limiting rod 104 preset in the lock body 1, and the safety tongue pull plate 112 is further provided with a transverse sliding groove 1122 located between the longitudinal sliding groove 1121 and the safety tongue 111. The safety catch control device further comprises a safety catch control assembly 12, the safety catch control assembly 12 comprises a control knob 121, a swing arm 122 and a shifting rod 123, the control knob 121 is rotatably installed on the lock body 1, an operating end of the control knob 121 is exposed out of the lock body 1, a connecting end 1210 of the control knob 121 extends into the lock body 1, one end of the swing arm 122 is fixed at the connecting end of the control knob 121, the other end of the swing arm 122 is connected with the shifting rod 123, and the shifting rod 123 is movably sleeved on the transverse sliding groove 1122. When the door is locked, the safety tongue 111 can also participate in locking, and the specific process is as follows: the control knob 121 is rotated anticlockwise, the shift lever 123 rotates along with the control knob and shifts the safety tongue pulling plate 112 to move forwards, so that the safety tongue 111 extends outwards and is locked; when the locking of the safety tongue 111 needs to be released, the control knob 121 is rotated reversely, and then the safety tongue pulling plate 112 is pulled by the poking rod 123 to move backwards, so that the safety tongue 111 retracts inwards.

In this embodiment, the lock 9 is separated from the lock body 1, and the lock 9 includes a lock body 91 and a lock rotor 92 rotatably disposed in the lock body 91, the lock rotor 92 is provided with a key hole 921 opening away from the lock body 1, one end of the lock rotor 92 facing the lock body 1 is provided with a first transmission connection hole 920, the second dial shaft 7 is provided with a second transmission connection hole 701 exposed out of the lock body 1, one end of the transmission rod 70 is inserted into the first transmission connection hole 920 to be in transmission fit therewith, and the other end of the transmission rod 70 is inserted into the second transmission connection hole 701 to be in transmission fit therewith. Still be equipped with the blade mounting groove 922 that link up perpendicularly with key hole 921 on the tapered end rotor 92, be equipped with blade 923 and the blade spring of unblanking in the blade mounting groove 922, be equipped with on the internal perisporium of lock head body 91 be used for with unblank blade 923 complex blade spacing groove 911. In the locked state, the unlocking blade 923 is caught in the blade stopper groove 911, so that the tapered end rotor 92 cannot rotate. When a key matched with the lock 9 is inserted into the key hole 921 of the lock rotor 92, the unlocking blade 923 is disengaged from the blade limiting groove 911, so that the lock rotor 92 is in a rotatable state, the key is screwed in a corresponding direction at the moment, the lock rotor 92 is driven to rotate, the second latch bolt moving block 32 is driven to slide backwards through the transmission rod 70 and the second moving shaft 7, the second latch bolt moving block 32 slides backwards, and then the latch bolt 21 is driven to retract and unlock through the latch bolt transmission part 22, so that the mechanical key unlocking function is realized.

In this embodiment, the lock body 1 is further provided with a main control board 13 for controlling the driving motor 5 and a rechargeable battery 14 electrically connected with the main control board 13, the main control board 13 is provided with a first charging interface 131 and a bluetooth module, an exposed hole 105 for exposing the first charging interface 131 is formed in a position, corresponding to the first charging interface 131, on the lock body 1, the bluetooth module is used for being in communication connection with an external mobile phone, so that an unlocking control signal can be sent to the main control board 13 through the external mobile phone, and then the driving motor 5 is controlled to drive the first latch bolt shifting block 31 to perform an unlocking action, thereby realizing an intelligent unlocking function of the mobile phone. The lock body 1 is provided with a battery access opening corresponding to the position of the rechargeable battery 14, and the battery access opening is provided with a battery cover 140, so that the rechargeable battery can be conveniently detached and replaced.

Further, the one end of the lock body 91 that keeps away from the lock body 1 is fixed with an operation panel 93 that encircles the lock body 91 setting, and operation panel 93 includes operation panel casing 931 and sets up the password key board 932 in operation panel casing 931, password key board 932 and main control board 13 electric connection, be equipped with on the password key board 932 from the several password keys 9321 that expose in one side of the back of lock body 1 of operation panel casing 931, still be equipped with on the password key board 932 and expose in the second interface 9322 that charges of operation panel casing 931. When the combination key is used, after the set unlocking password is input through the password key 9321, the driving motor 5 can be controlled to drive the first latch bolt shifting block 31 to do unlocking action, so that the password key unlocking function is realized.

In this embodiment, the first shaft 6 is rotatably installed on a side wall 10b of the lock body 1 facing the inner handle 8, one end of the first shaft 6 is located in the lock body 1, the other end of the first shaft is exposed out of the lock body 1 and is fixedly connected with the inner handle 8, and a first pusher dog 61 which is in abutting fit with the second latch bolt pusher 32 is arranged on the outer peripheral surface of one end of the first shaft 6 located in the lock body 1. The second shifting shaft 7 and the first shifting shaft 6 are arranged coaxially, a bearing hole 62 is formed in one end face, located in the lock body 1, of the first shifting shaft 6, one end of the second shifting shaft 7 is rotatably sleeved in the bearing hole 62, the other end of the second shifting shaft 7 is rotatably installed on a side wall 10c, facing the lock head 9, of the lock body 1, a second shifting claw 71 in abutting fit with the second latch shifting block 32 is arranged at one end, close to the first shifting shaft 6, of the second shifting shaft 7, and when the first shifting shaft 6 rotates, the second shifting shaft 7 cannot rotate along with the second shifting shaft 7, and when the second shifting shaft 7 rotates, the first shifting shaft 6 cannot rotate along with the second shifting block 32, so that the first shifting shaft 6 and the second shifting shaft 7 can respectively shift the second latch shifting block 32 and do not interfere with each other. Meanwhile, in order to facilitate the installation of the components in the lock body 1, a side wall 10c of the lock body 1 facing the lock head 9 is provided with a detachable cover plate structure.

The lock is characterized by further comprising a lock fixing plate 15 which is arranged on one side, facing the lock body 1, of the lock 9 in a separated mode, at least two first fixing holes 151 are formed in the lock fixing plate 15, at least two second fixing holes 910 are formed in the lock body 91, the first fixing holes 151 and the second fixing holes 910 are connected through fixing screws 16, and an avoiding sinking groove 106 for enabling the lock fixing plate 15 to be embedded into is formed in the outer surface of the side wall 10c, facing the lock 9, of the lock body 1.

As mentioned above, the anti-theft door lock of the invention can be additionally installed on the traditional wood door for use, and the anti-theft door lock is as follows: the lock 9 is inserted into the reserved through hole of the wood door from the outer side of the door body, the lock fixing plate 15 is arranged on the inner side of the door body and is fixedly connected with the lock body 91 through the fixing screw 16, and meanwhile, the opening of the key hole 921 on the lock rotor 92 and the operation plate 93 are exposed out of the outer side of the door body, so that a user can conveniently carry out unlocking operation; the lock body 1 is installed on the inner side of the door body, before the lock body 1 is installed, one end of the transmission rod 70 can be inserted into the first transmission connecting hole 920, the other end of the transmission rod 70 can be inserted into the second transmission connecting hole 701, then the lock body 1 is fixed on the inner side of the door body through screws, and meanwhile, as the avoidance sinking groove 106 is formed in the lock body 1, the lock body 1 can be ensured not to be blocked by the lock head fixing plate 15 during installation.

The unlocking principle of the anti-theft door lock is as follows: when the door is unlocked, the second latch bolt shifting block 32 can be shifted to slide backwards by rotating the inner handle 8 and the first shifting shaft 6, so that the latch bolt 21 is driven to retract and unlock; when the door is unlocked outside the door, on one hand, an unlocking control signal can be sent to the security door lock through the password key 9321 or an external mobile phone, and the driving motor 5 is controlled to drive the first latch bolt shifting block 31 to slide backwards, so as to drive the latch bolt 21 to retract inwards to unlock the door, on the other hand, the lock rotor 92 can also be driven to rotate by inserting a key, and the second latch bolt shifting block 32 is driven to slide backwards through the transmission rod 70 and the second shifting shaft 7, so as to drive the latch bolt 21 to retract inwards to unlock the door.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the description of the present invention are within the scope of the present invention.

Claims (10)

1. A kind of burglar-proof door lock with triggering type locking and locking functions, including the lock body, there are oblique bolt assemblies, oblique bolt toggle mechanisms in the said lock body, the said oblique bolt assembly includes oblique bolt and oblique bolt drive part, the said oblique bolt toggle mechanism can toggle the said oblique bolt drive part and make the said oblique bolt extend and lock or retract and unlock, lock the side wall to have for the said oblique bolt extend or retract first opening on the side wall of side of said lock body; the method is characterized in that:

the lock body is internally provided with a latch bolt locking mechanism, the latch bolt locking mechanism comprises a locking part, a locking triggering part, a triggering part spring and a locking releasing part, a second opening for the locking triggering part to extend outwards or retract inwards is arranged on the side wall of the locking side of the lock body, the triggering part spring is used for enabling the locking triggering part to keep an extending trend, one end of the locking part is rotatably arranged, the other end of the locking part is a free end, the rotatably arranged end of the locking part is also provided with a transmission abutting block, one end of the locking releasing part is connected with the latch bolt toggle mechanism, and the other end of the locking releasing part is provided with an abutting convex part and an abutting concave part which can be in switching fit with the transmission abutting block;

when the inclined tongue is in an outward extending and locking state, the locking releasing component is matched with the transmission abutting block in an abutting mode through the abutting concave part, at the moment, the locking component is triggered to rotate through the inward retraction action of the locking triggering component, the free end of the locking component is enabled to rotate to the rear side of the inclined tongue to be matched with the backstop of the inclined tongue in a rotating mode, and the inclined tongue is prevented from being pried by foreign matters to retract inwards;

when the latch bolt toggle mechanism toggles the latch bolt transmission part to do unlocking movement, the locking releasing part moves along with the latch bolt and is switched to be in abutting fit with the transmission abutting block by the abutting convex part, so that the locking part rotates reversely, the free end of the locking part rotates away from the rear side of the latch bolt to be disengaged from the rear side of the latch bolt, and the latch bolt can be retracted inwards to unlock according to the toggle of the latch bolt toggle mechanism to the latch bolt transmission part.

2. The security door lock with the trigger-type locking function according to claim 1, wherein: the inclined bolt locking mechanism further comprises a torsion spring, the torsion spring is sleeved on a torsion spring fixing shaft preset in the lock body, one end of the torsion spring is connected with the locking part, and the other end of the torsion spring is connected with the locking triggering part.

3. The security door lock with the trigger-type locking function according to claim 1, wherein: the front end of the locking triggering component is in a pointed shape, the tail end of the locking triggering component is provided with a positioning sleeve rod, and a triggering component spring is sleeved on the positioning sleeve rod and is in a compressed state when the locking triggering component is compressed.

4. The security door lock with the trigger-type locking function according to claim 1, wherein: the abutting convex part is a plane convex part arranged facing the transmission abutting block, the abutting concave part is an inclined plane concave part formed by inclining from the tail end of the plane convex part to the direction far away from the transmission abutting block, and the abutting matching surface of the transmission abutting block is an inclined plane structure corresponding to the inclined plane concave part.

5. The security door lock with the trigger-type locking function according to claim 1, wherein: the locking part is located between the latch bolt assembly and the locking triggering part, an avoiding groove which penetrates through the latch bolt in the longitudinal direction is formed in the surface of one side, facing the locking part, of the latch bolt, and a bayonet is formed in the free end of the locking part and matched with a backstop on one side of the rear end of the latch bolt when the latch bolt is in an outward extending and locking state.

6. The security door lock with trigger-type lock-up function according to any one of claims 1 to 5, characterized in that: the latch bolt shifting mechanism comprises a first latch bolt shifting block and a second latch bolt shifting block, the first latch bolt shifting block and the second latch bolt shifting block are arranged in a sliding mode and are respectively matched and connected with the latch bolt transmission part, the sliding of the first latch bolt shifting block and the second latch bolt shifting block can shift the latch bolt transmission part to enable the latch bolt to be locked in an extending mode or unlocked in a retracting mode, a driving motor used for driving the first latch bolt shifting block to slide and a first shifting shaft and a second shifting shaft capable of shifting the second latch bolt shifting block to slide are further arranged in the lock body, the first shifting shaft is connected with an inner handle arranged on one side of the outer portion of the lock body, and the second shifting shaft is in transmission connection with a lock head arranged on the other side of the outer portion of the lock body through a transmission rod.

7. The security door lock with trigger-type lock-up function according to claim 6, characterized in that: the lock comprises a lock body, a first latch bolt shifting block, a second latch bolt shifting block, a return spring and a locking releasing component, wherein the first latch bolt shifting block and the second latch bolt shifting block are arranged in parallel front and back along the unlocking movement direction of the latch bolt component, a slide rail used for allowing the first latch bolt shifting block and the second latch bolt shifting block to slide is arranged in the lock body, the second latch bolt shifting block can be pushed to slide backwards along with the first latch bolt shifting block by backward sliding of the first latch bolt shifting block, the first latch bolt shifting block can be pushed to slide forwards along with the forward sliding of the second latch bolt shifting block, one side, back to the first latch bolt shifting block, of the second latch bolt shifting block is provided with the return spring used for enabling the second latch bolt shifting block to keep a forward trend, meanwhile, one end of the locking releasing component is connected with the second latch bolt shifting block, and the locking.

8. The security door lock with trigger-type lock-up function according to claim 7, characterized in that: the latch bolt transmission part comprises a latch bolt rod, a first connecting block, a second connecting block, a first compression spring and a second compression spring, the front end of the latch bolt rod is connected with the latch bolt, the tail end of the latch bolt rod is provided with a stop cap, the first connecting block and the second connecting block are sleeved on the latch bolt rod at the front and back intervals, the first connecting block is clamped with the first latch bolt shifting block, the second connecting block is clamped with the second latch bolt shifting block, the first compression spring is sleeved on the front portion of the latch bolt rod, the second compression spring is sleeved on the tail portion of the latch bolt rod, the front end of the first compression spring is abutted against the latch bolt, the rear end of the first compression spring is abutted against the first connecting block, and the front end of the second compression spring is abutted against the second connecting block and the rear end of the stop cap.

9. The security door lock with trigger-type lock-up function according to claim 7, characterized in that: the first latch bolt shifting block is provided with strip-shaped teeth arranged along the unlocking motion direction of the latch bolt assembly, the output end of the driving motor is provided with a gear, and the gear is meshed with the strip-shaped teeth.

10. The security door lock with trigger-type lock-up function according to any one of claims 1 to 5, characterized in that: the lock body is internally provided with a safety tongue assembly, the safety tongue assembly comprises a safety tongue and a safety tongue pull plate, the side wall of the locking side of the lock body is provided with a third opening for the safety tongue to extend outwards or inwards, the front end of the safety tongue pull plate is connected with the safety tongue, the tail end of the safety tongue pull plate is provided with a longitudinal sliding groove, the longitudinal sliding groove is slidably sleeved on a limiting rod preset in the lock body, the safety tongue pull plate is also provided with a transverse sliding groove positioned between the longitudinal sliding groove and the safety tongue, the safety tongue control assembly further comprises a safety tongue control assembly, the safety tongue control assembly comprises a control knob, a swing arm and a shift lever, the control knob is rotatably arranged on the lock body, the operating end of the control knob is exposed out of the lock body, the connecting end of the control knob extends into the lock body, and one end of the swing arm is fixed at the connecting end of the control knob, the other end of the swing arm is connected with the shifting lever, and the shifting lever is movably sleeved on the transverse sliding chute.

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