A quick-open and quick-lock anti-theft door lock

Abstract

The present invention discloses a quick-open and quick-lock anti-theft door lock. The technical solution mainly includes a lock housing, a lock tongue, a push plate, a lock cylinder, and a quick locking mechanism. The quick locking mechanism includes a lock cylinder driving member, a release driving member, and a release button. The lock cylinder rotating member is rotatably connected to the lock housing. The lock cylinder driving member is provided with a driving curved surface. When the lock cylinder drives the lock cylinder rotating member to rotate in the lock housing, the end of the lock cylinder rotating member can drive the lock cylinder driving member to rotate along the driving curved surface. The lock cylinder driving member is provided with a first driving arm. When the first driving arm pushes the push plate to slide into the lock housing until the lock tongue is retracted into the lock port, the release driving member and the lock cylinder driving member maintain a locking state. A torsion spring is provided between the release driving member and the lock housing. One end of the release button is hinged to the release driving member in the lock housing. When the release driving member and the lock cylinder driving member are separated, the push plate can drive the lock tongue under the action of an elastic member. A retraction limiter is provided in the lock housing. The invention has few parts, stable transmission, and reduced cost.

Description

Technical Field

[0001] The present invention relates to the technical field of door locks, and more particularly to a quick-opening and quick-locking anti-theft door lock. Background Art

[0002] As the anti-theft performance of locks continues to improve, a wide variety of anti-theft locks have appeared on the market. These anti-theft locks all consist of a lock housing, a deadbolt, a latch bolt, a push plate interlocked with the deadbolt, the latch bolt, and the latch bolt, and a lock core that drives the push plate. The lock core is usually opened by a key. However, when locking, conventional anti-theft door locks require the key to be rotated twice to achieve the reverse locking function. When unlocking, the key also needs to be rotated twice in the reverse direction to achieve the reverse unlocking function, making the door lock unlocking and unlocking operations relatively cumbersome. In actual use, users often give up the locking process due to the trouble, resulting in the lock not being fully locked, making the anti-theft lock lose its anti-theft function. In addition, the internal structure of the door lock is complex, firstly, the numerous parts make installation inconvenient; secondly, the complex structure makes the transmission unstable; and finally, the processing cost of the entire door lock is high, which increases the cost of use. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a quick-open and quick-lock anti-theft door lock to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a quick-open and quick-lock anti-theft door lock, comprising a lock housing, a mounting plate arranged on the lock housing, a lock tongue, a tilted bolt, and a top and bottom latch arranged in the lock housing, a push plate respectively linked to the lock tongue, the tilted bolt, and the top and bottom latch, and a lock core for driving the push plate, the mounting plate being provided with a lock slot for allowing the lock tongue and the tilted bolt to extend outward, a quick locking mechanism linked to the push plate being provided in the lock housing, the quick locking mechanism comprising a lock core driving member rotatably connected in the lock housing and capable of driving the push plate, a release driving member rotatably connected in the lock housing and capable of engaging with the lock core driving member, and a release button axially slidably connected to the mounting plate;

[0005] The lock core driving member is provided with a first driving arm that can push the push plate to slide into the lock housing, and when the first driving arm pushes the push plate to slide into the lock housing until the lock tongue is retracted into the lock port, the release driving member and the lock core driving member maintain a buckled state.

[0006] The lock housing further comprises a locking mechanism for locking the lock cylinder and the locking member, wherein the locking mechanism is movable relative to the locking member, and the locking member is engaged with the locking member by pushing the locking member against the locking cylinder.

[0007] The present invention is further configured as follows: a limit fold block for limiting the top and bottom latches is provided on the lock shell near the tripping drive member, the limit fold block is integrally provided with the lock shell, the end of the tripping drive member is tilted near the limit fold block, and a circular boss is provided on the moving track of the tripping drive member in the lock shell for pushing the tripping drive member so that its tilted end avoids the limit fold block.

[0008] The present invention is further configured as follows: a shock absorber is provided in the lock housing, which can play a noise reduction role after the lock core drive member and the trip drive member are disengaged; the shock absorber is located on the movement trajectory after the lock core drive member and the trip drive member are disengaged; the shock absorber includes a shock-absorbing spring that can be elastically contacted by the lock core drive member, and an arc-shaped mounting member for fixing the shock-absorbing spring in the lock housing.

[0009] The lock cylinder can be driven by the lock cylinder driving member to rotate in the lock shell, so that the lock cylinder rotating member and the retraction limit member can be disengaged first, and then the push plate can drive the retraction limit member to return to its original position and rotate when the lock cylinder driving member drives the push plate to slide inward.

[0010] The present invention is further configured as follows: a handle driving member is rotatably connected in the lock shell for driving the inclined tongue to slide, the inclined tongue is provided with a sliding shaft axially slidingly connected to the lock shell, the sliding shaft is provided with a driving boss that can cooperate with the handle driving member, the lock shell is provided with a support plate that can be slidably connected to the sliding shaft, and the sliding shaft is sleeved with a return spring, and the return spring elastically abuts between the support plate and the driving boss. When the handle driving member rotates forward, it can drive the inclined tongue to slide into the lock shell by pushing the driving boss and the return spring is compressed and deformed by storing force, and a limit bolt is screwed in the lock shell that can limit the reversal of the handle driving member after the inclined tongue extends out of the lock mouth, and the sliding shaft passes through one end of the support plate and is sleeved with a reversing spring, and the reversing spring elastically abuts between the support plate and the tail end of the sliding shaft.

[0011] The present invention is further configured as follows: a plurality of support plates are provided, and each support plate is distributed in the lock shell; a slot for inserting the end of the support plate is opened on the lock shell; an insert block is protruded from the end of the support plate for inserting into the slot; the width of the insert block is smaller than the width of the support plate and is adapted to the length of the slot; the length of the insert block is adapted to the depth of the slot.

[0012] The present invention is further configured as follows: a reverse lifting member capable of driving the lock core driving member to disengage from the disengaging driving member, and a forward rotating member capable of driving the push plate to slide inward through the lock core driving member are transmittedly connected between the handle driving member and the lock core driving member; the middle parts of the reverse lifting member and the forward rotating member are both rotatably connected in the lock shell; the lock core driving member is provided with a second driving arm capable of cooperating with one end of the reverse lifting member, and the handle driving member is provided with a reverse control part capable of cooperating with the other end of the reverse lifting member; the handle driving member is provided with a pushing part capable of cooperating with one end of the forward rotating member, and the lock core driving member is provided with a rotating curved surface capable of cooperating with the other end of the forward rotating member.

[0013] The present invention is further configured as follows: a first electromagnet capable of locking the push plate is provided in the lock housing, the first electromagnet is located on one side of the push plate, and a clamping groove for the movable end of the first electromagnet to be clamped is concavely provided on the side of the push plate.

[0014] The present invention is further configured as follows: a second electromagnet capable of locking the lock core drive member is provided in the lock housing, and the second electromagnet is located on one side of the lock core drive member in a locked state.

[0015] The present invention is further configured as follows: a reverse locking member capable of restricting a lock core driving member is rotatably connected in the lock housing, and the reverse locking member is located on one side of the lock core driving member in a locked state.

[0016] In summary, the present invention has the following beneficial effects: during the door closing process, the trigger round head and the inclined bolt first contact the door frame, and the trip button and the inclined bolt are pushed into the lock housing, so that the trip button can drive the trip drive member to rotate and then disengage from the lock cylinder drive member. At this time, the push plate is pushed outward under the action of the elastic member. In this process, the push plate drives the lock cylinder drive member to quickly move away from the trip drive member through the first drive arm, and in the process of the push plate sliding outward, it also drives the lock bolt to extend to the maximum extent from the lock mouth, thereby realizing rapid reverse locking and reverse locking in place, so that the lock can be fully locked, thereby having a good anti-theft function, and the reverse locking of the lock does not require additional locking operation, and the anti-theft lock function can be quickly and effectively realized only by closing the door;

[0017] During the door opening process, the lock core needs to be driven by the key, and then the lock core drives the lock core rotating part to rotate in the lock shell. During the process, the end of the lock core rotating part can drive the lock core driving part to rotate along the driving curved surface. During the rotation process, the lock core driving part pushes the push plate to slide into the lock shell through the first driving arm and compresses the elastic part until the lock core driving part rotates to engage with the release driving part, thereby limiting the rotation of the lock core driving part and the sliding of the push plate. At this time, the lock tongue is retracted from the lock port into the lock shell to achieve quick unlocking.

[0018] In addition to conventional parts, the lock has additional parts including a lock core drive part, a release drive part, a release button, a lock core rotating part, and a retraction limit part. The number of parts is small, the transmission is more stable, the structure is simple and easy to implement, and the processing and use costs can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a quick-open and quick-lock anti-theft door lock (in the locked state);

[0020] Figure 2 This is a schematic diagram of the structure of a quick-open and quick-lock anti-theft door lock (in the door open state);

[0021] Figure 3 Schematic diagram of the structure of the quick locking mechanism (when the lock cylinder drive member and the release drive member are separated);

[0022] Figure 4 Schematic diagram of the structure of the quick locking mechanism (when the lock cylinder drive member and the release drive member are engaged);

[0023] Figure 5 It is a structural diagram of the push plate;

[0024] Figure 6 It is a structural diagram of the lock core driving member, the lock core rotating member and the retraction limit member in the coordinated state;

[0025] Figure 7 This is a structural diagram of a quick-open and quick-lock anti-theft door locked at the oblique tongue;

[0026] Figure 8 This is a structural diagram of the positive rotating parts in the anti-theft door lock in the mating state;

[0027] Figure 9 This is a structural diagram of the anti-theft door lock's internal anti-lifting piece in the engaged state.

[0028] Figure numerals: 1, lock housing; 11, mounting plate; 111, lock mouth; 12, handle driving member; 121, counter-control part; 122, pushing part; 13, oblique tongue; 131, sliding shaft; 132, driving boss; 133, reset spring; 134, reversing spring; 14, limiting bolt; 15, push plate; 151, lock tongue; 152, elastic member; 153, driving boss; 154, snap-fit ​​groove; 16, limiting folding block; 17, round boss; 18, top and bottom latch; 19, support plate; 2, quick locking Mechanism; 21. Lock cylinder drive member; 211. Drive curved surface; 212. First drive arm; 213. Second drive arm; 214. Rotation curved surface; 22. Disengagement drive member; 23. Disengagement button; 231. Trip round head; 24. Lock cylinder rotation member; 241. Tension spring; 25. Torsion spring; 26. Retraction limit member; 27. Reverse lift member; 28. Forward rotation member; 3. Lock cylinder; 4. First electromagnet; 5. Shock absorber; 51. Shock-absorbing spring; 52. Arc-shaped mounting member; 6. Second electromagnet; 7. Inverted lock member. DETAILED DESCRIPTION

[0029] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention, with reference to the accompanying drawings. Like components are denoted by like reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0030] Reference Figure 1-9As shown, a quick-open and quick-lock anti-theft door lock includes a lock housing 1, a mounting plate 11 arranged on the lock housing 1, a lock tongue 151, a tilted tongue 13 and a top and bottom latch 18 arranged in the lock housing 1, and a push plate 15 respectively linked with the lock tongue 151, the tilted tongue 13 and the top and bottom latch 18, and a lock core 3 for driving the push plate 15. A lock hole 111 for the lock tongue 151 and the tilted tongue 13 to extend outward is opened on the mounting plate 11, and a lock core 3 is provided in the lock housing 1 that can be engaged with the push plate 1 5-linked quick locking mechanism 2, the quick locking mechanism 2 includes a lock cylinder driving member 21 rotatably connected to the lock housing 1 and capable of driving the push plate 15, a release driving member 22 rotatably connected to the lock housing 1 and capable of engaging with the lock cylinder driving member 21, and a release button 23 axially slidably connected to the mounting plate 11; the lock housing 1 is embedded in the door panel, and the mounting plate 11 is located on one side of the lock housing 1. When the door is closed, the mounting plate 11 can be clearly matched with the door frame.

[0031] The lock core driving member 21 is provided with a first driving arm 212 which can push the push plate 15 to slide into the lock shell 1. When the first driving arm 212 pushes the push plate 15 to slide into the lock shell 1 until the lock tongue 151 is retracted into the lock port 111, the release driving member 22 and the lock core driving member 21 are kept in a buckled state.

[0032] A torsion spring 25 is provided between the tripping drive member 22 and the lock housing 1 so that the tripping drive member 22 and the lock cylinder drive member 21 are always in a locked state. The tripping button 23 is hinged to the tripping drive member 22 at one end in the lock housing 1. The other end of the tripping button 23 is a triggering round head 231. The torsion spring 25 can keep the tripping button 23 in a ready-to-touch state by the tripping drive member 22 so that the triggering round head 231 emerges from the mounting plate 11. By pressing the triggering round head 231, the tripping button 23 is driven to slide into the lock housing 1. During the process, it can drive the tripping driving member 22 to separate from the lock cylinder driving member 21; an elastic member 152 is provided in the lock housing 1 for pushing the push plate 15 to slide outward, and when the tripping driving member 22 is separated from the lock cylinder driving member 21, the push plate 15 can drive the lock tongue 151 to emerge from the mounting plate 11 under the action of the elastic member 152; a retraction limiter 26 is also provided in the lock housing 1, which can limit the retraction of the push plate 15 when the lock tongue 151 is extended, and the retraction limiter 26 is transmission-connected between the lock cylinder rotating member 24 and the push plate 15.

[0033] During the door closing process, the trigger round head 231 and the inclined bolt 13 first contact the door frame, and the trip button 23 and the inclined bolt 13 are pushed into the lock housing 1, so that the trip button 23 can drive the trip drive member 22 to rotate and then disengage from the lock cylinder drive member 21. At this time, the push plate 15 is pushed outward under the force of the elastic member 152. In this process, the push plate 15 drives the lock cylinder drive member 21 to quickly move away from the trip drive member 22 through the first drive arm 212, and in the process of the push plate 15 sliding outward, it also drives the lock bolt 151 to extend as far as possible from the lock hole 111, thereby realizing rapid reverse locking and reverse locking in place, so that the lock can be fully locked, thereby having a good anti-theft function, and the reverse locking of the lock does not require additional locking operation, and the anti-theft locking function can be quickly and effectively achieved only by closing the door;

[0034] During the door opening process, the key needs to drive the lock cylinder 3, and then the lock cylinder 3 drives the lock cylinder rotating member 24 to rotate in the lock shell 1. During the process, the end of the lock cylinder rotating member 24 can drive the lock cylinder driving member 21 to rotate along the driving curved surface 211. During the rotation process, the lock cylinder driving member 21 pushes the push plate 15 to slide into the lock shell 1 through the first driving arm 212 and compresses the elastic member 152 until the lock cylinder driving member 21 rotates to engage with the release driving member 22, thereby limiting the rotation of the lock cylinder driving member 21 and the sliding of the push plate 15. At this time, the lock tongue 151 is retracted from the lock port 111 into the lock shell 1 to achieve quick unlocking.

[0035] In addition to conventional components, the lock has additional components including a lock core drive component 21, a trip drive component 22, a trip button 23, a lock core rotating component 24, and a retraction limit component 26. The number of components is small, the transmission is more stable, the structure is simple and easy to implement, and the processing and use costs can be effectively reduced.

[0036] In addition, it should be noted that the top and bottom latches 18 and the push plate 15 are designed in a conventional linkage, that is, the push plate 15 can extend outwards through the cooperation structure of the inclined rail and the guide column during its outward sliding. Figure 1 and 2 .

[0037] A limit folding block 16 for limiting the position of the top and bottom latch 18 is provided on the lock shell 1 near the tripping drive member 22. The limit folding block 16 is integrally provided with the lock shell 1, and the end of the tripping drive member 22 is tilted near the limit folding block 16. A circular boss 17 is provided on the moving track of the tripping drive member 22 in the lock shell 1 for pushing the tripping drive member 22 so that its tilted end can avoid the limit folding block 16. The top and bottom latches 18 are connected to the lock shell 1 in a longitudinal sliding manner. The limit fold block 16 can be located on one side of the top and bottom latches 18 for limiting, and the limit fold block 16 is protruded from the bottom of the lock shell 1. In order to avoid interference with the tripping drive member 22, the end of the tripping drive member 22 close to the limit fold block 16 is tilted to avoid the tripping drive member 22 from interfering with the limit fold block 16 during rotation. The additional circular boss 17 is also located at the bottom of the lock shell 1 and on the moving track of the tripping drive member 22 sliding into the lock shell 1. In this way, the tripping button 23 can make the tripping drive member 22 avoid to one side when driving the tripping drive member 22 to rotate, which can further avoid interference between the tripping drive member 22 and the limit fold block 16, and is also conducive to the tripping drive member 22 and the lock core drive member 21.

[0038] A shock absorber 5 is provided within the lock housing 1 to reduce noise after the lock cylinder driver 21 and the release driver 22 are disengaged. The shock absorber 5 is located along the motion trajectory of the lock cylinder driver 21 and the release driver 22 after disengagement. The shock absorber 5 includes a shock absorbing spring 51 for elastically contacting the lock cylinder driver 21, and an arc-shaped mounting member 52 for securing the shock absorbing spring 51 within the lock housing 1. When closing the door, the push plate 15 is rapidly pushed outward by the elastic member 152. The push plate 15, in turn, drives the lock cylinder driver 21 rapidly away from the release driver 22 via the first drive arm 212. The shock absorber 5 is preferably located at the end of the motion trajectory of the lock cylinder driver 21 during rotation, allowing the shock absorbing spring 51 to buffer and dampen the lock cylinder driver 21, effectively reducing the noise made when the door lock is locked.

[0039] The middle part of the retraction limit member 26 is rotatably connected to the lock housing 1, and a driving protrusion 153 is provided on one side of the push plate 15 to drive the retraction limit member 26 to swing outward. One end of the retraction limit member 26 can be detachably buckled with the end of the lock cylinder rotating member 24 close to the lock cylinder driving member 21. In the process of the push plate 15 sliding outward, the other end of the retraction limit member 26 can be driven by the driving protrusion 153 to swing outward until the retraction limit member 26 is buckled with the lock cylinder rotating member 24, and the retraction limit member 26 is away from the end of the lock cylinder rotating member 24. The lock core 3 drives the lock core rotating part 24 to rotate in the lock shell 1, and the lock core rotating part 24 and the retraction limit part 26 are disengaged first. Then, in the process of the lock core driving part 21 driving the push plate 15 to slide inward, the push plate 15 can drive the retraction limit part 26 to reset and rotate, which can effectively prevent the retraction limit part 26 from maintaining a position that may be engaged with the lock core rotating part 24.

[0040] When the door is closed, the push plate 15 slides outward quickly under the action of the elastic member 152, and the driving protrusion 153 on the push plate 15 drives the upper end of the retraction limit member 26 to swing outward during the outward sliding process, until the lower end of the retraction limit member 26 is engaged with the lock core rotating member 24, the upper end of the retraction limit member 26 can conflict with the lock tongue 151 or the push plate 15, playing a role in limiting the retraction of the push plate 15, effectively improving the safety of the anti-theft lock; when the door is opened, the lock core 3 drives the lock core rotating member 24 to rotate, so that the lock core rotating member 24 will first disengage from the lower end of the retraction limit member 26 when driving the lock core driving member 21 to rotate, and the push plate 15 can drive the retraction limit member 26 to return to its original position and rotate during the sliding process into the lock housing 1. The structure is simple, easy to implement, and the transmission is stable and reliable.

[0041] The handle driving member 12 is rotatably connected in the lock shell 1 for driving the inclined tongue 13 to slide. The inclined tongue 13 is provided with a sliding shaft 131 axially slidingly connected in the lock shell 1, and the sliding shaft 131 is provided with a driving boss 132 that can cooperate with the handle driving member 12. A support plate 19 that can be slidably connected to the sliding shaft 131 is provided in the lock shell 1. A return spring 133 is sleeved on the sliding shaft 131, and the return spring 133 elastically abuts between the support plate 19 and the driving boss 132. When the handle driving member 12 rotates forward, it can push the driving boss 132 to drive the inclined tongue 13 to slide into the lock shell 1 and the return spring 133 is compressed and deformed. A limit bolt 14 is screwed in the lock shell 1, which can limit the reversal of the handle driving member 12 after the inclined tongue 13 extends out of the lock port 111. One end of the sliding shaft 131 passing through the support plate 19 is sleeved with a reversing spring 134, and the reversing spring 134 elastically abuts between the support plate 19 and the tail end of the sliding shaft 131. The handle driving member 12 is connected to the door handle, so that the handle driving member 12 can rotate forward or reverse under the drive of the door handle. When the handle driving member 12 rotates forward, it can drive the inclined tongue 13 to slide into the lock housing 1 through the driving boss 132, and the sliding shaft 131 can compress the return spring 133 during the inward sliding process. When the door handle is loosened, the return spring 133 drives the inclined tongue 13 to extend from the lock mouth 111 through the driving boss 132, and the handle driving member 12 is limited by the limit bolt 14; after loosening the limit bolt 14, the handle driving member 12 can be reversed under the drive of the door handle, so that the handle driving member 12 can be separated from the driving boss 132, and the inclined tongue 13 can be manually pulled out and rotated to conveniently achieve the reversal of the inclined tongue 13.

[0042] Multiple support plates 19 are provided, each distributed within the lock housing 1. Slots are defined in the lock housing 1 for the ends of the support plates 19 to plug into. An insert is protruded from the end of the support plate 19 for insertion into the slot. The insert is smaller in width than the support plate 19 and matches the length of the slot, while the length matches the depth of the slot. The ends of the support plates 19 are supported between the inner sidewalls of the lock housing 1 in the thickness direction, effectively enhancing the overall structural strength of the lock housing 1 and preventing deformation or damage to the internal structure of the door lock due to compression and collision during transportation and use.

[0043] The handle drive member 12 is provided with a reverse-lifting member 27 which can drive the lock cylinder drive member 21 to disengage from the tripping drive member 22, and a forward-rotating member 28 which can drive the push plate 15 to slide inwardly through the lock cylinder drive member 21. The middle parts of the reverse-lifting member 27 and the forward-rotating member 28 are both rotatably connected in the lock shell 1. The lock cylinder drive member 21 is provided with a second driving arm 213 which can cooperate with one end of the reverse-lifting member 27, and the handle drive member 12 is provided with a reverse-control portion 121 which can cooperate with the other end of the reverse-lifting member 27. During use, the handle drive member 12 can be reversed by reverse-lifting the door handle, and the reverse-lifting member 27 can be driven to reverse in the lock shell 1 by the reverse-control portion 121, so that the reverse-lifting member 27 can drive the lock cylinder drive member 21 by pushing the second driving arm 213, and this rotation can make the lock cylinder drive member 21 disengage from the tripping drive member 22, thereby facilitating manual anti-locking.

[0044] The handle driver 12 is provided with a push portion 122 that can cooperate with one end of the normal rotating member 28, and the lock cylinder driver 21 is provided with a rotating curved surface 214 that can cooperate with the other end of the normal rotating member 28. When the door handle is turned to cause the handle driver 12 to rotate forward, the push portion 122 can drive the normal rotating member 28 to rotate within the lock housing 1. In turn, the normal rotating member 28 can drive the lock cylinder driver 21 to rotate via the rotating curved surface 214. The rotation of the lock cylinder driver 21 can drive the push plate 15 to slide inward via the first driving arm 212, thereby achieving manual unlocking of the handle.

[0045] A first electromagnet 4 capable of locking the push plate 15 is housed within the lock housing 1. The first electromagnet 4 is located on one side of the push plate 15, and a recessed slot 154 is formed on the side of the push plate 15 for the movable end of the first electromagnet 4 to engage. After locking the door, the first electromagnet 4 can be energized, causing the locking element within the first electromagnet 4 to pop out, allowing the movable end below the first electromagnet 4 to engage with the retaining slot 154. This creates an electrically controlled reverse locking effect, preventing the door from being unlocked with a normal key. The key can only be unlocked after power is removed or a signal is applied again. This significantly improves the safety of the door lock, making it particularly suitable for use in specialized locations such as banks and prisons.

[0046] A second electromagnet 6 capable of locking the lock cylinder driver 21 is disposed within the lock housing 1. The second electromagnet 6 is located to one side of the lock cylinder driver 21 when the lock is in the locked state. The second electromagnet 6 is positioned near the damper 5. This allows the lock to be locked, i.e., when the lock cylinder driver 21 is in contact with the damper 5. When the second electromagnet 6 is energized, the locking element within the second electromagnet 6 can contact and position the lock cylinder driver 21, thereby achieving an electrically controlled reverse locking effect. At this point, a normal key cannot unlock the door, and it can only be unlocked after power is removed or a signal is applied. This significantly improves the safety of the door lock, making it particularly suitable for use in special locations such as banks and prisons.

[0047] In addition, the first electromagnet 4 and the second electromagnet 6 are preferably bistable electromagnets. Compared with conventional electromagnets, bistable electromagnets have the characteristics of fast response speed and high instantaneous power. For example, a conventional electromagnet takes about 3 seconds to achieve the anti-locking effect during the unlocking process, while a bistable electromagnet only takes about 100 milliseconds to quickly achieve the opening or locking effect, which has the effects of saving time, convenience, and energy saving, and is more suitable for powering batteries.

[0048] A reverse locking member 7 capable of restraining the lock cylinder driver 21 is rotatably connected to the lock housing 1. The reverse locking member 7 is located on one side of the lock cylinder driver 21 when the lock cylinder is in the locked state. The reverse locking member 7 is arranged close to the shock absorber 5. When the door lock is in the locked state, that is, when the lock cylinder driver 21 is in contact with the shock absorber 5, the reverse locking member 7 can be manually driven to rotate so that the reverse locking member 7 can contact and limit the lock cylinder driver 21, thereby achieving a manual reverse locking effect, which is conducive to further improving the safety of the door lock.

[0049] In addition, when opening the door, the reverse locking member is rotated 180°. At this time, the reverse locking member 7 is located on the movement trajectory of the lock core drive member 21, which can block the rotation of the lock core drive member 21, thereby achieving a normally open effect and preventing the door from being closed.

[0050] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that improvements and modifications that do not depart from the principles of the present invention are within the scope of protection of the present invention.

Claims

1. A quick-open and quick-lock anti-theft door lock, comprising a lock housing (1), a mounting plate (11) arranged on the lock housing (1), a lock tongue (151), a tilted tongue (13), and a top and bottom latch (18) arranged in the lock housing (1), a push plate (15) respectively linked to the lock tongue (151), the tilted tongue (13), and the top and bottom latch (18), and a lock core (3) for driving the push plate (15), wherein a lock opening (111) is provided on the mounting plate (11) for the lock tongue (151) and the tilted tongue (13) to extend outward, and a quick locking mechanism (2) capable of being linked to the push plate (15) is provided in the lock housing (1), wherein: The quick locking mechanism (2) comprises a lock core driving member (21) rotatably connected to the lock housing (1) and capable of driving the push plate (15), a release driving member (22) rotatably connected to the lock housing (1) and capable of engaging with the lock core driving member (21), and a release button (23) axially slidably connected to the mounting plate (11); A lock core rotating member (24) capable of driving a lock core driving member (21) to rotate is rotatably connected in the lock housing (1), a middle portion of the lock core rotating member (24) is rotatably connected to the lock housing (1), one end of the lock core rotating member (24) is correspondingly arranged with the lock core (3), and the other end is correspondingly arranged with the lock core driving member (21), a driving curved surface (211) capable of being matched with the end portion of the lock core rotating member (24) is provided on the lock core driving member (21), and the lock core rotating member (24) is driven by the lock core (3) to rotate in the lock housing. (1) During the internal rotation, the end of the lock core rotating member (24) can drive the lock core driving member (21) to rotate along the driving curved surface (211); the lock core driving member (21) is provided with a first driving arm (212) capable of pushing the push plate (15) to slide into the lock housing (1); when the first driving arm (212) pushes the push plate (15) to slide into the lock housing (1) until the lock tongue (151) is received in the lock port (111), the release driving member (22) and the lock core driving member (21) maintain a buckled state; A torsion spring (25) is provided between the release drive member (22) and the lock housing (1) to enable the release drive member (22) and the lock core drive member (21) to always maintain a locked state. One end of the release button (23) in the lock housing (1) is hingedly connected to the release drive member (22). The other end of the release button (23) is a triggering round head (231). The torsion spring (25) can enable the release button (23) to always maintain a waiting state in which the triggering round head (231) emerges from the mounting plate (11) through the release drive member (22). By pressing the triggering round head (231), the release button (23) is driven to slide into the lock housing (1). During the operation, the release drive member (22) can be driven to separate from the lock core drive member (21); an elastic member (152) for pushing the push plate (15) to slide outward is provided in the lock housing (1); when the release drive member (22) is separated from the lock core drive member (21), the push plate (15) can drive the lock tongue (151) to emerge from the mounting plate (11) under the action of the elastic member (152); a retraction limiter (26) is also provided in the lock housing (1) and can limit the retraction of the push plate (15) when the lock tongue (151) is extended; the retraction limiter (26) is transmission-connected between the lock core rotating member (24) and the push plate (15).

2. The quick-open and quick-lock anti-theft door lock according to claim 1, characterized in that: A limit folding block (16) for limiting the position of the top and bottom latch (18) is provided on the lock housing (1) near the tripping drive member (22). The limit folding block (16) is integrally provided with the lock housing (1). The end of the tripping drive member (22) near the limit folding block (16) is tilted. A circular boss (17) is provided on the movement track of the tripping drive member (22) in the lock housing (1) for pushing the tripping drive member (22) so that its tilted end avoids the limit folding block (16).

3. A quick-open and quick-lock anti-theft door lock according to claim 1 or 2, characterized in that: The lock housing (1) is provided with a shock absorber (5) capable of reducing noise after the lock core driving member (21) and the release driving member (22) are released. The shock absorber (5) is located on a motion trajectory after the lock core driving member (21) and the release driving member (22) are released. The shock absorber (5) includes a shock absorbing spring (51) capable of being elastically contacted by the lock core driving member (21) and an arc-shaped mounting member (52) for fixing the shock absorbing spring (51) in the lock housing (1).

4. The quick-open and quick-lock anti-theft door lock according to claim 1, characterized in that: The middle part of the retraction limiter (26) is rotatably connected to the lock housing (1), and a driving protrusion (153) is provided on one side of the push plate (15) to drive the retraction limiter (26) to swing outward. One end of the retraction limiter (26) can be detachably buckled with one end of the lock core rotating member (24) close to the lock core driving member (21). During the outward sliding of the push plate (15), the other end of the retraction limiter (26) can be driven by the driving protrusion (153) to swing outward until the retraction limiter (26) is buckled with the lock core rotating member (24). The end of the positioning member (26) away from the lock core rotating member (24) can limit the retraction of the push plate (15); a tension spring (241) is provided in the lock housing (1) and can pull the lock core rotating member (24) and the retraction limiting member (26) to maintain a buckled state. In the process of the lock core (3) driving the lock core rotating member (24) to rotate in the lock housing (1), the lock core rotating member (24) and the retraction limiting member (26) can be first disengaged, and then the push plate (15) can be driven to slide inward by the lock core driving member (21) and the retraction limiting member (26) can be driven to reset and rotate.

5. The quick-open and quick-lock anti-theft door lock according to claim 1, characterized in that: A handle driving member (12) for driving the inclined tongue (13) to slide is rotatably connected in the lock housing (1), a sliding shaft (131) axially slidingly connected in the lock housing (1) is provided on the inclined tongue (13), a driving boss (132) capable of cooperating with the handle driving member (12) is provided on the sliding shaft (131), a support plate (19) capable of slidingly connecting with the sliding shaft (131) is provided in the lock housing (1), a return spring (133) is sleeved on the sliding shaft (131), and the return spring (133) elastically abuts against the support plate (19) and the drive boss (132), when the handle driving member (12) rotates forward, the inclined tongue (13) can be driven to slide into the lock housing (1) by pushing the driving boss (132), and the reset spring (133) is compressed and deformed, and a limit bolt (14) is screwed into the lock housing (1) to limit the reverse rotation of the handle driving member (12) after the inclined tongue (13) extends out of the lock mouth (111). One end of the sliding shaft (131) passes through the support plate (19) and is sleeved with a reversing spring (134). The reversing spring (134) elastically abuts between the support plate (19) and the tail end of the sliding shaft (131).

6. The quick-open and quick-lock anti-theft door lock according to claim 5, characterized in that: A plurality of support plates (19) are provided, and each support plate (19) is distributed in the lock housing (1). A slot for inserting the end of the support plate (19) is provided on the lock housing (1). An insert block for inserting into the slot is protruded from the end of the support plate (19). The width of the insert block is smaller than the width of the support plate (19) and matches the length of the slot. The length of the insert block matches the depth of the slot.

7. The quick-open and quick-lock anti-theft door lock according to claim 5, characterized in that: The handle drive member (12) and the lock core drive member (21) are connected in a transmission manner with a reverse lifting member (27) capable of driving the lock core drive member (21) to be disengaged from the disengaging drive member (22), and a forward rotating member (28) capable of driving the push plate (15) to slide inward through the lock core drive member (21); the middle parts of the reverse lifting member (27) and the forward rotating member (28) are both rotatably connected in the lock housing (1); the lock core drive member (21) is provided with a second driving arm (213) capable of cooperating with one end of the reverse lifting member (27); the handle drive member (12) is provided with a reverse control portion (121) capable of cooperating with the other end of the reverse lifting member (27); the handle drive member (12) is provided with a pushing portion (122) capable of cooperating with one end of the forward rotating member (28); and the lock core drive member (21) is provided with a rotating curved surface (214) capable of cooperating with the other end of the forward rotating member (28).

8. The quick-open and quick-lock anti-theft door lock according to claim 1, characterized in that: A first electromagnet (4) capable of locking the push plate (15) is provided in the lock housing (1). The first electromagnet (4) is located on one side of the push plate (15). A clamping groove (154) for clamping the movable end of the first electromagnet (4) is recessed on the side of the push plate (15).

9. The quick-open and quick-lock anti-theft door lock according to claim 1, characterized in that: A second electromagnet (6) capable of locking the lock core drive member (21) is provided in the lock housing (1), and the second electromagnet (6) is located on one side of the lock core drive member (21) in a locked state.

10. The quick-open and quick-lock anti-theft door lock according to claim 1, characterized in that: A reverse locking member (7) capable of restricting a lock core driving member (21) is rotatably connected in the lock housing (1), and the reverse locking member (7) is located on one side of the lock core driving member (21) in a locked state.

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