CN109629931B - Automatic lock triggered by closing door - Google Patents

Abstract

The invention discloses a door closing triggering automatic lock, which comprises a shell, a lock plunger linkage mechanism, a door closing triggering and locking retaining mechanism, an unlocking mechanism, an anti-riot unlocking mechanism and a safety mechanism, wherein the lock plunger linkage mechanism comprises a left vertical rod, a right vertical rod, a left special-shaped lock plunger, an annular lock plunger, a main lock plunger, a driving piece and a driving tension spring; when the unlocking mechanism drives the door closing triggering and locking retaining mechanism to act, the door closing triggering and locking retaining mechanism drives the left and right heaven and earth rods, the left and right special-shaped lock bolts, the annular lock bolts and the main lock bolts to unlock through the driving piece. After adopting above-mentioned structure, have simple structure reasonable, flexible operation light, can not produce false triggering, false lock, work stable and reliable, prevent advantages such as violent opening performance is good.

Description

Automatic lock triggered by closing door

Technical Field

The invention relates to the technical field of anti-theft locks, in particular to a door closing trigger automatic lock which can trigger locking and retaining only at a door closing position.

Background

The existing automatic anti-theft locks are various in variety and different in mechanism, and locking, unlocking, locking limiting and the like of the lock bolt are generally realized through the cooperation of a plurality of parts. Such a structure has mainly the following drawbacks: firstly, the triggering structure is unreasonable, and the existing triggering modes are divided into mechanical type and electronic type; mechanical type is divided into single-stage triggering, multi-stage triggering, ball collision electrodeless triggering and inclined tongue electrodeless triggering; the single-stage trigger, the multi-stage trigger, the ball-collision type electrodeless trigger and the inclined tongue type electrodeless trigger are lifted in sequence, but all generate false trigger, so that the fixed point trigger at the door closing position (the only position where the lock bolt needs to extend) is not realized, the absolute locking is ensured, and the false locking state exists. The problem caused by false triggering mainly has two points, and the lock needs to be opened again to realize closing again, so that the door is very complicated; secondly, the lock bolt collides with the door frame after false triggering, so that the lock and the door are damaged. The problem of the false lock state is mainly that the theft risk of a user is increased, the requirement of the triggering mode on the manufacturing precision of the burglary-resisting door is higher, and the method cannot adapt to the current situation that the manufacturing process of the burglary-resisting door in China is generally low. The electronic triggering mode generally controls the electric actuating element to drive the lock plunger to lock by a door closing in-place signal, and the electronic triggering mode has the following defects that: generally, the manufacturing cost and the maintenance cost are high.

Secondly, the lock bolt structure is unreasonable, a lock bolt plate is fixed into a lock bolt auxiliary structure through riveting or welding and the like, a plurality of lock bolts and lock bolt plates possibly generate non-parallel motion of the lock bolt pairs in the shell due to the fact that the lock bolts are not parallel in the telescopic direction in the riveting process, and when a small deformation caused by shearing force in the closing direction occurs to the individual lock bolts in the using process of the lockset, the small deformation on the individual lock bolts possibly affects the motion of the whole lock bolt pairs due to the integral lock bolt auxiliary structure, and the phenomenon of unsmooth motion or locking occurs; the latch plate pushes the left and right rods to move together in a pushing inclined plane mode, so that energy loss is high in the opening and closing process, and the operation hand feeling is heavy. The anti-theft lock is locked mostly by adopting the linear extension of the lock bolt, and the anti-prying performance is poor.

Thirdly, the lock bolt control mechanism is unreasonable, the lock bolt is locked, unlocked and locked and limited by the cooperation of a plurality of parts, the production process is complex, the requirements on machining precision and assembly precision are high, and the production cost is high; the error accumulation of each part is large, the product quality is not guaranteed, and the telescoping synchronism of the lock head and the flatness of the end face of the lock head are poor.

Fourth, most of the existing anti-theft locks are not provided with anti-breaking devices, are easy to open in a destructive mode, and have poor anti-theft performance. In view of the above problems, many manufacturers and scientific research institutions are specially developed and researched, but no ideal product has been developed yet.

Summary of the invention

In order to solve the problems in the prior art, the invention provides the door closing triggering automatic lock which can trigger locking and keeping only at the door closing position, creatively optimizes and improves the performance and the function of the anti-theft lock, comprehensively improves the convenience in use, the anti-theft safety and the stability of unlocking and locking, and greatly improves the appearance, the strength and the cost of the shell through design and process optimization.

The invention creates the technical scheme adopted to solve the technical problems, and comprises a shell, a lock bolt linkage mechanism, a door closing triggering and locking retaining mechanism, an unlocking mechanism, an anti-riot unlocking mechanism and a safety mechanism, wherein the lock bolt linkage mechanism comprises a left vertical rod, a right vertical rod, a left special-shaped lock bolt, an annular lock bolt, a main lock bolt, a driving piece and a driving tension spring, the shell is correspondingly provided with a left special-shaped lock bolt shaft, a right special-shaped lock bolt shaft, an anti-riot guide pin, a first guide pin, a third guide pin and a second spring column, and a panel of the shell is correspondingly provided with a left special-shaped lock bolt hole, a right special-shaped lock bolt hole and a main lock bolt hole; the left-day ground rod is correspondingly provided with two first limiting guide grooves, a fourth driving limiting groove and a clearance groove, and is correspondingly fixed with a fourth driving pin and a fifth driving pin; the right world pole is correspondingly provided with two second limit guide grooves and a fifth drive limit groove and is fixedly provided with a sixth drive pin; the special-shaped lock bolts on the left side and the right side are correspondingly provided with first driving limit grooves; the annular lock bolt is provided with a second driving limit groove; the main lock bolt is correspondingly provided with a clamping groove matched with the head part of the annular lock bolt, a third driving limit groove and a fourth guide pin; the driving piece is correspondingly fixed with a rotating shaft, a first driving pin, a second driving pin and a third driving pin; the left world rod is correspondingly arranged on the left side of the special-shaped latch shaft, the anti-riot guide pin and the first guide pin in a sliding manner through the two first limiting guide grooves and the anti-empty groove; the right world rod is correspondingly arranged on the third guide pin and the special-shaped latch shaft on the right side in a sliding way through two second limiting guide grooves; the special-shaped lock bolts on the left side and the right side are rotatably correspondingly arranged on special-shaped lock bolt shafts on the left side and the right side and are matched with corresponding left and right special-shaped lock bolt holes on the panel, and the first driving limit grooves on the special-shaped lock bolts on the left side and the right side are matched with corresponding fourth driving pins and sixth driving pins; the annular lock bolt is rotatably arranged on the annular lock bolt shaft, and a second driving limit groove on the annular lock bolt is matched with a corresponding fifth driving pin; the main lock bolt is slidably arranged on the first guide groove of the shell through a fourth guide pin and is matched with the main lock bolt hole; the driving piece is rotatably arranged on the shell through the rotating shaft, a first driving pin on the driving piece is matched with a fourth driving limit groove on the left heaven and earth rod, a third driving pin on the driving piece is matched with a fifth driving limit groove on the right heaven and earth rod, a second driving pin on the driving piece is matched with a third driving limit groove on the main lock bolt, and a driving tension spring is correspondingly connected between a first spring hook of the driving piece and a second spring column of the shell; when the door closing trigger and the locking and holding mechanism trigger the locking, the driving piece is driven by the driving tension spring to lock through the first driving pin, the third driving pin, the fourth driving pin, the sixth driving pin, the fifth driving pin, the second driving pin, the corresponding fourth driving limit groove, the fifth driving limit groove, the first driving limit groove, the second driving limit groove and the third driving limit groove on the special-shaped lock bolts on the left side and the right side, the annular lock bolts and the main lock bolts; when unlocking, the unlocking mechanism drives the door closing trigger and the locking retaining mechanism to act, and simultaneously drives the driving piece to overcome the elastic force of the driving tension spring and then drive the left and right top and bottom rods, the special-shaped lock bolts on the left and right sides, the annular lock bolts and the main lock bolts to unlock.

The invention provides a door closing trigger and locking retaining mechanism, which comprises an unlocking locating piece, a trigger tongue, a power assisting tongue, a locking tongue and a trigger piece, wherein a first spring column and a second guide pin are correspondingly arranged on a shell, an inclined tongue guide hole is arranged on a panel of the shell, an unlocking locating piece guide notch, an unlocking locating piece locating groove, an unlocking locating piece guide groove and a three-in-one functional groove are arranged on the unlocking locating piece, a trigger tongue pushing pin and a trigger tongue limiting end are correspondingly arranged on the trigger tongue, a trigger tongue guide groove and a locking tongue transmission groove are correspondingly arranged on the trigger tongue, a three-in-one functional pin and a trigger tongue pushing end are correspondingly arranged on the trigger tongue, the trigger tongue and the locking tongue are slidably arranged on the second guide pin through the corresponding trigger tongue guide groove and the locking tongue guide groove and are matched with the inclined tongue guide hole, the trigger tongue limiting end and the trigger tongue rotating pin play a limiting role, the trigger piece is rotatably arranged on the trigger piece rotating pin of the locking tongue, the trigger tongue pushing end and the trigger tongue on the trigger tongue are correspondingly provided with a trigger tongue pushing pin, the trigger tongue is connected with the trigger tongue, the trigger tongue is arranged on the trigger tongue, the trigger tongue and the trigger tongue is in a reset locating pin is in a sliding mode, and is connected with the three-in-one guide groove through the main locating pin, and the three-in-guide groove is arranged on the main locating pin.

According to a further scheme, a trigger tongue inclined plane is arranged on the trigger tongue, a locking tongue inclined plane is arranged on the locking tongue, a power assisting tongue rotating pin is arranged on the locking tongue, the power assisting tongue is rotatably arranged on the power assisting tongue rotating pin, a force surface and a prying surface are arranged on the power assisting tongue, the force surface, the trigger tongue inclined plane and the locking tongue inclined plane are kept on the same side and are arranged on the outer side of the shell panel, and the prying surface is arranged on the inner side of the shell panel.

According to a further scheme, locking plates are arranged on door frames corresponding to the shell panel, a first locking hole, a second locking hole, a transverse partition and a third locking hole are arranged on the locking plates, the first locking hole is matched with the left special-shaped lock bolt and the annular lock bolt, the second locking hole is matched with the main lock bolt, the transverse partition is matched with the trigger tongue, and the third locking hole is matched with the power assisting tongue, the locking tongue and the right special-shaped lock bolt.

The unlocking mechanism comprises a poking plate, a first transmission plate and a second transmission plate, wherein a rotatable poking shaft is arranged on the shell, a poking plate transmission pin is arranged on the poking plate, a first transmission plate pushing end and a first transmission plate transmission pin are correspondingly arranged on the first transmission plate, a second transmission plate transmission sliding groove and a second transmission plate transmission pin are arranged on the second transmission plate, the poking plate is arranged on the poking shaft, the second transmission plate is rotatably arranged on the second guide pin, one end of the first transmission plate is hinged on the poking plate transmission pin, the first transmission plate transmission pin at the other end is movably connected on the second transmission plate transmission sliding groove of the second transmission plate, the second transmission plate transmission pin is connected on the locking tongue transmission groove of the locking tongue, and the first transmission plate pushing end of the first transmission plate is matched with a third driving pin on the driving plate.

The invention further provides a further scheme, the anti-riot unlocking mechanism comprises an anti-riot locking piece, an anti-riot trigger pin, an anti-riot locking piece tension spring and an anti-riot locking piece, wherein the anti-riot locking piece is arranged on the left ground rod and slidably arranged on the anti-riot guide pin through an anti-riot locking piece guide slot, an anti-riot locking slot matched with the anti-riot locking piece is correspondingly arranged on the anti-riot locking piece, the anti-riot locking piece tension spring is connected between a spring hook of the anti-riot locking piece and the anti-riot guide pin, and the anti-riot trigger pin is movably arranged on the shell and is fixed with an outdoor handle; the anti-riot trigger pin is positioned in the anti-riot locking groove and blocks the anti-riot locking plate from moving during normal operation; when the anti-riot trigger pin is pulled out by violent breaking, the anti-riot locking groove on the anti-riot locking plate is locked on the anti-riot locking piece of the left-hand ground rod under the action of the elasticity of the tension spring of the anti-riot locking plate.

According to a further scheme, the anti-riot locking plate is provided with the blocking plate, and the shell is provided with the anti-riot self-locking long screw which is matched with the blocking plate to prevent the anti-riot locking plate from moving when the anti-riot locking plate is not in fortification or the unlocking short screw used for fortification.

According to a further scheme, the anti-riot lock plate limiting pin and the safety shaft are arranged on the shell, and the guiding limiting edges on two sides of the anti-riot lock plate are slidably arranged between the anti-riot lock plate limiting pin and the safety shaft.

The safety mechanism comprises a safety piece and a safety torsion spring, wherein the safety piece is rotatably arranged on a shell through a safety shaft and is correspondingly provided with a safety piece limiting end, a safety piece clearance groove, a safety piece limiting groove and a safety piece hook, a third spring column which is matched with the safety piece limiting groove to limit the stroke of the safety piece is arranged on the shell, and two ends of the safety torsion spring are correspondingly connected to the safety piece hook and the third spring column; when the lockset is locked and the internal insurance is arranged, the limiting end of the insurance piece on the insurance piece is matched with the anti-riot locking block of the heaven and earth rod, so that the heaven and earth rod always keeps a locked state.

After adopting above-mentioned structure, compare with prior art has following advantage and effect: firstly, the lock is locked only at the in-place position of the door, so that false triggering is effectively prevented, and damage caused by collision of the lock bolt and the door frame due to false triggering is avoided. And secondly, the door can be kept in absolute locking when the door is closed, so that the false locking state is stopped, and the property and personal safety of a user are ensured to the greatest extent. And thirdly, the closed lock bolt mechanism can form a buckling relation with the door frame, the implementation mode is simple and effective, the appearance and the action science and technology feel strong, and the door frame is super-strong in anti-prying and anti-collision. And fourthly, all the action components are movably connected, so that the clearance fit problem caused by the fastening error does not exist, and meanwhile, the bearable impact deformation is more than 10 times of the fastening connection, so that the smooth action and stable performance of the product can be ensured to the greatest extent. The anti-riot unlocking mechanism is additionally arranged, so that destructive unlocking such as prying, smashing, sawing, grinding and the like can be prevented to the greatest extent. And the method is adaptable to the manufacturing tolerance of the ultra-large burglary-resisting door, the maximum allowable tolerance reaches 12mm, and the method is the maximum allowable tolerance of the burglary-resisting lock so far, and has absolute popularization advantages for the current situation that the installation environment and the manufacturing tolerance of the existing civil burglary-resisting door are larger. Seventh, the number of components of the whole product is small, especially the function of preventing false triggering and keeping absolute locking is realized by utilizing the difference that the same mechanism of the closing triggering and locking keeping mechanism is positioned at unlocking and locking positions, thus effectively reducing the number of components, reducing the consumption cost of raw materials, reducing the process cost, reducing the accumulation of errors and improving the performance of the product. And eighth, the product accessories are small in number, the production period is short, and the shipment speed is high.

Drawings

FIG. 1 is a schematic view of an exploded structure of the present invention.

Fig. 2 is a schematic diagram of an assembly structure of the present invention in an unlocked state.

Fig. 3 is a schematic diagram of an assembled structure of the invention when the locking state is not set up.

Fig. 4 is a schematic diagram of an assembly structure when the locking state fortification is created according to the present invention.

Fig. 5 is a schematic perspective view of the inventive housing.

Fig. 6 is a schematic view showing an exploded structure of the latch mechanism according to the present invention.

Fig. 7 is a schematic view of an exploded construction of the door closing trigger and latch retention mechanism of the present invention.

Fig. 8 is a schematic diagram of the mating structure of the unlocking mechanism of the present invention.

Fig. 9 is a schematic perspective view of an anti-riot lock plate according to the present invention.

Fig. 10 is a schematic perspective view of a rupture disc according to the present invention.

Fig. 11 is a schematic perspective view of a locking plate according to the present invention.

Wherein 1 housing, 2 profile lock, 3 left day lever, 4 antiriot lock tab, 5 annular lock, 6 main lock, 7 driver blade, 8 unlocking detent, 9 locking bolt return tension spring, 10 trigger bolt, 11 booster bolt, 12 locking bolt, 13 trigger bolt, 14 trigger bolt return tension spring, 15 right day lever, 16 second driver blade, 17 first driver blade, 18 drive tension spring, 19 driver blade, 20 safety blade, 21 safety torsion spring, 22 antiriot lock tab tension spring, 23 lock tab, 24 antiriot lock long screw, 25 unlocking short screw, 26 profile lock bolt shaft, 27 profile lock bolt hole, 28 antiriot guide pin, 29 annular lock bolt hole, 30 main lock bolt hole, 31 first guide pin, 32 first spring post, 33 oblique bolt guide hole, 34 second spring post, 35 second guide pin, 36 first guide slot, 37 third guide pin, 38 driver shaft, 39 antiriot lock limit pin, 40 third spring post, 41 antiriot trigger pin, 42 safety shaft, 43 first drive limit slot, 44 second drive limit slot, 45 catch slot, 46 fourth guide pin, 47 third drive limit slot, 48 first drive pin, 49 rotation shaft, 50 second drive pin, 51 third drive pin, 52 first spring hook, 53 first limit guide slot, 54 fourth drive pin, 55 clearance slot, 56 anti-riot lock block, 57 fifth drive pin, 58 fourth drive limit slot, 59 second limit guide slot, 60 fifth drive limit slot, 61 sixth drive pin, 62 trigger tongue guide slot, 63 trigger tongue limit end, 64 trigger tongue push pin, 65 trigger tongue ramp, 66 pry surface, 67 force face, 68 unlocking tab guide slot, 69 unlocking tab guide slot, 70 unlocking tab guide slot, 71 three-in-one function slot, 72 trigger tab push end, 73 three-in-one function pin, 74 locking tongue ramp, 75 assist tongue rotation pin, 76 trigger piece rotating pins, 77 locking tongue guide slots, 78 locking tongue driving slots, 79 pulling piece driving pins, 80 first driving piece pushing ends, 81 first driving piece driving pins, 82 second driving piece driving pins, 83 second driving piece driving sliding slots, 84 anti-riot locking piece guide slots, 85 anti-riot locking slots, 86 safety piece limiting ends, 87 safety piece clearance slots, 88 safety piece limiting slots, 89 first lock holes, 90 second lock holes, 91 transverse bars, 92 third lock holes, 93 annular locking bolt shafts, 94 safety piece hooks and 95 blocking pieces.

Description of the embodiments

Fig. 1 to 11 show that a specific embodiment of a door closing triggering automatic lock is created for the invention, and the door closing triggering automatic lock comprises a shell 1, a lock bolt linkage mechanism, a door closing triggering and locking retaining mechanism, an unlocking mechanism, an anti-riot unlocking mechanism and a safety mechanism, wherein the lock bolt linkage mechanism comprises left and right world rods 3 and 15, a left and right special-shaped lock bolt 2, an annular lock bolt 5, a main lock bolt 6, a driving piece 7 and a driving tension spring 18, the shell 1 is correspondingly provided with a left and right special-shaped lock bolt shaft 26, an annular lock bolt shaft 93, an anti-riot guide pin 28, a first guide pin 31, a third guide pin 37 and a second spring column 34, and a left and right special-shaped lock bolt hole 27, an annular lock bolt hole 29 and a main lock bolt hole 30 are correspondingly arranged on a panel of the shell 1; the left-side ground rod 3 is correspondingly provided with two first limiting guide grooves 53, a fourth driving limiting groove 58 and a clearance groove 55, and is correspondingly fixed with a fourth driving pin 54 and a fifth driving pin 57; two second limiting guide grooves 59 and a fifth driving limiting groove 60 are correspondingly arranged on the right world rod 15, and a sixth driving pin 61 is fixed on the right world rod; the special-shaped lock bolts 2 on the left side and the right side are correspondingly provided with first driving limit grooves 43; the annular lock bolt 5 is provided with a second driving limit groove 44; the main lock bolt 6 is correspondingly provided with a clamping groove 45 matched with the head of the annular lock bolt 5 and a third driving limit groove 47 and is fixed with a fourth guide pin 46; the driving piece 7 is correspondingly fixed with a rotation shaft 49, a first driving pin 48, a second driving pin 50 and a third driving pin 51; the left world rod 3 is correspondingly arranged on the left special-shaped latch shaft 26, the anti-riot guide pin 28 and the first guide pin 31 in a sliding way through two first limit guide grooves 53 and a clearance groove 55; the right world rod 15 is correspondingly arranged on the third guide pin 37 and the special-shaped latch shaft 26 on the right side in a sliding way through two second limit guide grooves 59; the special-shaped lock bolts 2 on the left side and the right side are rotatably correspondingly arranged on special-shaped lock bolt shafts 26 on the left side and the right side and are matched with corresponding left and right special-shaped lock bolt holes 27 on the panel, and the first driving limiting grooves 43 on the special-shaped lock bolts 2 on the left side and the right side are matched with corresponding fourth driving pins 54 and sixth driving pins 61; the annular lock bolt 5 is rotatably arranged on the annular lock bolt shaft 93, and the second driving limit groove 44 on the annular lock bolt 5 is matched with the corresponding fifth driving pin 57; the main bolt 6 is slidably disposed on the first guide groove 36 of the housing 1 by the fourth guide pin 46 and is engaged with the main bolt hole 30; the driving piece 7 is rotatably arranged on the shell 1 through a rotating shaft 49, a first driving pin 48 on the driving piece 7 is matched with a fourth driving limit groove 58 on the left-right rod 3, a third driving pin 51 on the driving piece 7 is matched with a fifth driving limit groove 60 on the right-right rod 15, a second driving pin 50 on the driving piece 7 is matched with a third driving limit groove 47 on the main latch 6, and a driving tension spring 18 is correspondingly connected between a first spring hook 52 of the driving piece 7 and a second spring column 34 of the shell 1; when the door closing trigger and the locking and holding mechanism trigger the locking, the driving piece 7 is driven by the driving tension spring 18 to lock through the first driving pin 48, the third driving pin 51, the fourth driving pin 54, the sixth driving pin 61, the fifth driving pin 57, the second driving pin 50, the corresponding fourth driving limit groove 58, the fifth driving limit groove 60 and the first driving limit groove 43, the second driving limit groove 44 and the third driving limit groove 47 on the special-shaped lock bolts 2 on the left side and the right side, and the special-shaped lock bolts 2 on the left side and the right side, the annular lock bolts 5 and the main lock bolts 6 on the left side and the right side are driven in a matched manner; when unlocking, the unlocking mechanism drives the door closing trigger and the locking retaining mechanism to act, and simultaneously drives the driving piece 7 to overcome the elastic force of the driving tension spring 18 and then drive the left and right heaven and earth rods 3 and 15, the special-shaped lock bolts 2 on the left and right sides, the annular lock bolts 5 and the main lock bolts 6 to unlock.

In order to effectively prevent false triggering and ensure reliable locking when the door is in place, the door closing triggering and locking retaining mechanism comprises an unlocking positioning piece 8, a triggering tongue 10, a boosting tongue 11, a locking tongue 12 and a triggering piece 13, a first spring column 32 and a second guide pin 35 are correspondingly arranged on the shell 1, an inclined tongue guide hole 33 is arranged on the panel of the shell 1, an unlocking positioning piece guide notch 68, an unlocking positioning piece positioning groove 69, an unlocking positioning piece guide groove 70 and a three-in-one functional groove 71 are correspondingly arranged on the unlocking positioning piece 8, a triggering tongue pushing pin 64, a triggering tongue limiting end 63 and a triggering tongue guide groove 62 are correspondingly arranged on the triggering tongue 10, a triggering piece rotating pin 76, a locking tongue guide groove 77 and a locking tongue transmission groove 78 are correspondingly arranged on the locking tongue 12, a three-in-one functional pin 73 and a triggering piece pushing end 72 are correspondingly arranged on the triggering piece 13, trigger tongue 10 and latch tongue 12 are slidably disposed on second guide pin 35 and cooperate with latch tongue guide hole 33 by corresponding trigger tongue guide groove 62 and latch tongue guide groove 77, trigger tongue limit end 63 cooperates with trigger tab rotation pin 76 to limit trigger tongue 10, trigger tab 13 is rotatably disposed on trigger tab rotation pin 76 of latch tongue 12, trigger tab push end 72 on trigger tab 13 cooperates with trigger tongue push pin 64 on trigger tongue 10, trigger tab return tension spring 14 is connected between trigger tab 13 and latch tongue 12, latch tongue return tension spring 9 is connected between latch tongue 12 and first spring post 32, unlatch positioning tab 8 is slidably disposed on rotation shaft 49 and second guide pin 35 by unlatch positioning tab guide notch 68, unlatch positioning tab guide groove 70, three-in-one functional groove 71 on unlatch positioning tab 8 is disposed on three-in-one functional pin 73 of trigger tab 13, an unlocking-positioning-piece positioning groove 69 on the unlocking positioning piece 8 is provided on the fourth guide pin 46 of the main lock plunger 6.

In order to conveniently realize the functions of triggering the closing door and locking and keeping the closing door, the triggering tongue 10 is provided with a triggering tongue inclined plane 65, the locking tongue 12 is provided with a locking tongue inclined plane 74, the locking tongue 12 is provided with a power assisting tongue rotating pin 75, the power assisting tongue 11 is rotatably arranged on the power assisting tongue rotating pin 75, the power assisting tongue 11 is provided with a force surface 67 and a prying surface 66, the force surface 67, the triggering tongue inclined plane 65 and the locking tongue inclined plane 74 are kept on the same side and are arranged on the outer side of the panel of the shell 1, and the prying surface 66 is arranged on the inner side of the panel of the shell 1. The locking plate 23 is fixed on the door frame corresponding to the panel of the shell 1, the locking plate 23 is provided with a first locking hole 89, a second locking hole 90, a transverse partition 91 and a third locking hole 92, the first locking hole 89 is matched with the left special-shaped lock bolt 2 and the annular lock bolt 5, the second locking hole 90 is matched with the main lock bolt 6, the transverse partition 91 is matched with the trigger tongue 10, and the third locking hole 92 is matched with the auxiliary tongue 11, the locking tongue 12 and the right special-shaped lock bolt 2.

In order to ensure reliable unlocking, the unlocking mechanism comprises a poking piece 19, a first transmission piece 17 and a second transmission piece 16, wherein a rotatable poking shaft 38 is arranged on the shell 1, a poking piece transmission pin 79 is arranged on the poking piece 19, a first transmission piece pushing end 80 and a first transmission piece transmission pin 81 are correspondingly arranged on the first transmission piece 17, a second transmission piece transmission sliding groove 83 and a second transmission piece transmission pin 82 are correspondingly arranged on the second transmission piece 16, the poking piece 19 is arranged on the poking shaft 38, the second transmission piece 16 is rotatably arranged on the second guide pin 35, one end of the first transmission piece 17 is hinged on the poking piece transmission pin 79, the first transmission piece transmission pin 81 at the other end is movably connected on the second transmission piece transmission sliding groove 83 of the second transmission piece 16, the second transmission piece transmission pin 82 is connected on the locking tongue transmission groove 78 of the locking tongue 12, and the first transmission piece pushing end 80 of the first transmission piece 17 is matched with the third driving pin 51 on the driving piece 7.

In order to prevent the destructive unlocking to the maximum extent, the anti-riot unlocking mechanism comprises an anti-riot lock plate 4, an anti-riot trigger pin 41, an anti-riot lock plate tension spring 22 and an anti-riot lock block 56 arranged on the left-day ground rod 3, wherein the anti-riot lock plate 4 is slidably arranged on the anti-riot guide pin 28 through an anti-riot lock plate guide slot 84, an anti-riot lock slot 85 matched with the anti-riot lock block 56 is correspondingly arranged on the anti-riot lock plate 4, the anti-riot lock plate tension spring 22 is connected between a spring hook of the anti-riot lock plate 4 and the anti-riot guide pin 28, and the anti-riot trigger pin 41 is movably arranged on the shell 1 and is fixed with an outdoor handle; the anti-riot trigger pin 41 is positioned in the anti-riot locking groove 85 and blocks the movement of the anti-riot locking plate 4 during normal operation; when the anti-riot trigger pin 41 is pulled out by violent breaking, the anti-riot locking groove 85 on the anti-riot locking piece 4 is locked on the anti-riot locking piece 56 of the left-hand and right-hand rod 3 under the elastic force of the anti-riot locking piece tension spring 22.

In order to meet the requirement of no defense or fortification of a user, the anti-riot locking plate 4 is provided with a blocking piece 95, and the shell 1 is provided with an anti-riot self-locking long screw 24 which is matched with the blocking piece 95 to prevent the anti-riot locking plate 4 from moving when not fortifying or an unlocking short screw 25 used for fortifying. The shell 1 is provided with an anti-riot lock plate limiting pin 39 and a safety shaft 42, and guide limiting edges on two sides of the anti-riot lock plate 4 are slidably arranged between the anti-riot lock plate limiting pin 39 and the safety shaft 42.

In order to ensure indoor safety, the safety mechanism comprises a safety piece 20 and a safety torsion spring 21, wherein the safety piece 20 is rotatably arranged on a shell 1 through a safety shaft 42 and is correspondingly provided with a safety piece limiting end 86, a safety piece clearance groove 87, a safety piece limiting groove 88 and a safety piece hook 94, the shell 1 is provided with a third spring column 40 which is matched with the safety piece limiting groove 88 to limit the travel of the safety piece 20, two ends of the safety torsion spring 21 are correspondingly connected to the safety piece hook 94 and the third spring column 40, and the safety piece clearance groove 87 is matched with an anti-riot trigger pin 41; when the lockset is locked and the internal insurance is arranged, the insurance piece limiting end 86 on the insurance piece 20 is matched with the anti-riot locking block 56 of the heaven and earth rod 3, so that the heaven and earth rod 3 always maintains the locked state.

The working process of the invention is as follows: fig. 2 is a schematic diagram of an assembly structure in an unlocking state, when the door is closed at this time, after the force-applying surface 67 on the assist tongue 11 is pressed by the door frame, the assist tongue 11 rotates around the assist tongue rotating pin 75 of the locking tongue 12, the prying surface 66 thereof is blocked by the inner side surface of the panel of the shell 1, the trigger tongue 10, the locking tongue 12, the trigger piece 13 and the trigger piece reset tension spring 14 are integrally pushed into the shell 1, when all the lock bolts align with the corresponding hole sites with the assist tongue 11 and the locking tongue 12, the trigger tongue 10 and the locking tongue 12 generate relative motion due to the blocking action of the transverse partition 91 of the locking plate 23, the trigger tongue pushing pin 64 of the trigger tongue 10 pushes the trigger piece pushing end 72 of the trigger piece 13 to drive the trigger piece 13 to rotate, the three-in-one functional pin 73 of the trigger piece 13 pushes the three-in-one functional groove 71 of the unlocking and positioning piece 8 to enable the unlocking and positioning piece 8 to move rightwards, the unlocking and positioning piece positioning groove 69 is separated from the fourth guide pin 46 of the main lock bolt 6 and loses positioning effect, at the moment, the driving piece 7 rotates anticlockwise under the pulling force of the driving tension spring 18, the first driving pin 48, the third driving pin 51 and the second driving pin 50 of the driving piece 7 correspondingly drive the left and right world rods 3 and 15 and the main lock bolt 6 to act, meanwhile, the fourth driving pin 54 and the fifth driving pin 57 on the left world rod 3 push the corresponding left special lock bolt 2 and the annular lock bolt 5 to act, and the sixth driving pin 61 on the right world rod 15 pushes the right special lock bolt 2 to act, so that locking action is finally realized, as shown in fig. 3 and 4.

In summary, all the bolts extend only when the bolts are required to extend, namely the door closing position, and the rest positions cannot extend. As the lock is in the in-place position, the trigger tongue 10 and the locking tongue 12 are always kept in a staggered state, and the main bolt 6 does not have the opportunity to unlock and position, so the lock can be kept locked absolutely, and the false lock state is stopped; when the lockset is in a non-closed door in-place position, the trigger tongue 10 and the locking tongue 12 are always kept not to be staggered, the main lock bolt 6 is always in an unlocking and positioning state, and all lock bolts are not stretched out, so that false triggering of the lockset is effectively prevented.

When the lock is in the locked state as shown in fig. 3 and 4 and is unlocked, if the safety mechanism is locked, the safety shaft 42 is rotated clockwise, the safety shaft 42 drives the safety plate 20 to be opened, so that the safety plate limiting end 86 releases the locking of the anti-riot locking block 56 of the left-right rod 3; then, the poking shaft 38 on the shell 1 is rotated clockwise, the poking shaft 38 drives the first transmission plate 17 to move leftwards through the poking plate 19, the first transmission plate 17 is matched with the third driving pin 51 through the pushing end 80 of the first transmission plate to drive the driving plate 7 to rotate clockwise against the pulling force of the driving tension spring 18, the driving plate 7 drives the left and right world rods 3 and 15 and the main bolt 6 to retract into the shell 1, the left world rod 3 drives the left special-shaped lock bolt 2 and the annular lock bolt 5 to retract into the shell 1, and the right world rod 15 drives the right special-shaped lock bolt 2 to retract into the shell 1; the first driving piece 17 drives the driving piece 7 to rotate and simultaneously drives the second driving piece 16 to rotate clockwise, the second driving piece 16 drives the locking tongue 12, the triggering tongue 10, the power assisting tongue 11, the triggering piece 13 and the triggering piece reset tension spring 14 to overcome the elastic tension of the locking tongue reset tension spring 9 together through the cooperation of the second driving piece driving pin 82 and the locking tongue driving groove 78 and then to retract into the shell 1, and at the moment, the triggering piece 13 simultaneously drives the triggering piece 13 to drive the triggering tongue 10 and the unlocking positioning piece 8 to reset under the action of the tension of the triggering piece reset tension spring 14; when the unlocking locating piece 8 is reset, the unlocking locating piece locating groove 69 has a locating effect on the fourth guide pin 46 of the main lock bolt 6, and as the main lock bolt 6 is located only by the associated locating effect among all lock bolts, all lock bolts are located, so that the unlocking process is completed; when the pulling shaft 38 on the housing 1 is released after the unlocking process is completed, the locking tongue 12, the triggering tongue 10, the power assisting tongue 11, the triggering piece 13 and the triggering piece resetting tension spring 14 are integrated and reset to the next triggerable state under the action of the pulling force of the locking tongue resetting tension spring 9, as shown in fig. 2.

The anti-riot unlocking mechanism works as follows, and the lockset is in an un-armed state when leaving the factory, as shown in fig. 3, and the anti-riot self-locking long screw 24 is always propped against the blocking piece 95 of the anti-riot locking plate 4. After the lockset is installed, if the user does not set up the defense, the lockset can be used; if the user is to be armed, the anti-riot self-locking long screw 24, as shown in FIG. 3, is replaced with an unlocking short screw 25, as shown in FIG. 4. If an illegal person opens the lock in a destructive manner after the arming, the outdoor handle panel is removed first, then the lock is opened, because the anti-explosion trigger pin 41 is fixed on the outdoor handle panel, when the outdoor handle panel is removed, the anti-explosion trigger pin 41 is also removed together, the anti-explosion lock plate 4 is not limited by the anti-explosion trigger pin 41, the anti-explosion lock groove 85 on the anti-explosion lock plate 4 is locked on the anti-explosion lock block 56 of the left ground rod 3 under the elastic force of the anti-explosion lock plate tension spring 22, the guiding limit edges on two sides of the anti-explosion lock plate 4 are locked between the anti-explosion lock plate limit pin 39 and the safety shaft 42, and because the left ground rod 3 can control the opening actions of all lock bolts, and meanwhile, the anti-explosion lock plate 4 is positioned in the lock, and can not be opened, so that all lock bolts can not be opened, thereby realizing the anti-destructive opening function.

The safety mechanism works as follows, when the lock is in the locked state, as shown in fig. 3 and 4, the safety shaft 42 rotates anticlockwise, the safety shaft 42 drives the safety piece limiting end 86 on the safety piece 20 to clamp the anti-riot locking block 56 of the ground rod 3, so that the ground rod 3 always maintains the locked state, and the safety function can be realized indoors. If the safety function is required to be released, the safety piece 20 only needs to be rotated clockwise until the safety piece cannot be rotated.

The foregoing is a specific embodiment of the present invention and is not intended to limit the invention in any way, but rather to make simple modifications, equivalent variations or modifications without departing from the technical solution of the invention, all falling within the scope of the invention.

Claims (6)

1. The utility model provides a close door trigger automatic lock, includes casing (1), lock plunger linkage mechanism, closes door trigger and close the holding mechanism, unlocking mechanism, anti-riot unlocking mechanism, safety mechanism, characterized by: the lock bolt linkage mechanism comprises left and right upper and lower rods (3 and 15), special-shaped lock bolts (2) on the left side and the right side, an annular lock bolt (5), a main lock bolt (6), a driving piece (7) and a driving tension spring (18), wherein the left and right sides of the special-shaped lock bolt shaft (26), the annular lock bolt shaft (93), an anti-riot guide pin (28), a first guide pin (31), a third guide pin (37) and a second spring column (34) are correspondingly arranged on the left and right sides of the shell (1), and a left and right special-shaped lock bolt hole (27), an annular lock bolt hole (29) and a main lock bolt hole (30) are correspondingly arranged on a panel of the shell (1); two first limiting guide grooves (53), a fourth driving limiting groove (58) and a clearance groove (55) are correspondingly arranged on the left-sky ground rod (3), and a fourth driving pin (54) and a fifth driving pin (57) are correspondingly fixed; two second limiting guide grooves (59) and a fifth driving limiting groove (60) are correspondingly arranged on the right world rod (15), and a sixth driving pin (61) is fixed on the right world rod; the special-shaped lock bolts (2) on the left side and the right side are correspondingly provided with first driving limit grooves (43); the annular lock bolt (5) is provided with a second driving limit groove (44); a clamping groove (45) matched with the head of the annular lock bolt (5) and a third driving limit groove (47) are correspondingly arranged on the main lock bolt (6), and a fourth guide pin (46) is fixed on the main lock bolt; a rotating shaft (49), a first driving pin (48), a second driving pin (50) and a third driving pin (51) are correspondingly fixed on the driving piece (7); the left-side ground rod (3) is correspondingly arranged on the left special-shaped latch shaft (26), the anti-riot guide pin (28) and the first guide pin (31) in a sliding way through two first limit guide grooves (53) and an empty avoidance groove (55); the right world rod (15) is correspondingly arranged on the third guide pin (37) and the special-shaped latch shaft (26) on the right side in a sliding way through two second limit guide grooves (59); the special-shaped lock bolts (2) on the left side and the right side are rotatably correspondingly arranged on special-shaped lock bolt shafts (26) on the left side and the right side and are matched with corresponding left and right special-shaped lock bolt holes (27) on the panel, and a first driving limit groove (43) on the special-shaped lock bolts (2) on the left side and the right side is matched with a corresponding fourth driving pin (54) and a sixth driving pin (61); the annular lock bolt (5) is rotatably arranged on the annular lock bolt shaft (93), and a second driving limit groove (44) on the annular lock bolt (5) is matched with a corresponding fifth driving pin (57); the main lock bolt (6) is slidably arranged on the first guide groove (36) of the shell (1) through a fourth guide pin (46) and is matched with the main lock bolt hole (30); the driving piece (7) is rotatably arranged on the shell (1) through a rotating shaft (49), a first driving pin (48) on the driving piece (7) is matched with a fourth driving limit groove (58) on the left ground rod (3), a third driving pin (51) on the driving piece (7) is matched with a fifth driving limit groove (60) on the right ground rod (15), a second driving pin (50) on the driving piece (7) is matched with a third driving limit groove (47) on the main lock bolt (6), and a driving tension spring (18) is correspondingly connected between a first spring hook (52) of the driving piece (7) and a second spring column (34) of the shell (1); the door closing triggering and locking retaining mechanism comprises an unlocking locating piece (8), a triggering tongue (10), a power assisting tongue (11), a locking tongue (12) and a triggering piece (13), wherein a first spring column (32) and a second guide pin (35) are correspondingly arranged on a shell (1), an inclined tongue guide hole (33) is correspondingly arranged on a panel of the shell (1), an unlocking locating piece guide notch (68), an unlocking locating piece locating groove (69), an unlocking locating piece guide groove (70) and a three-in-one functional groove (71) are arranged on the unlocking locating piece (8), a triggering tongue pushing pin (64) and a triggering tongue limiting end (63) are correspondingly arranged on the triggering tongue (10), a triggering tongue guide groove (62) is correspondingly arranged on the triggering tongue (12), a triggering tongue rotating pin (76), a locking tongue guide groove (77) and a locking tongue transmission groove (78) are correspondingly arranged on the triggering piece (13), the triggering tongue (10) and the locking tongue (12) can be slidably arranged on the second guide pin (35) through the corresponding triggering tongue guide groove (62) and the corresponding triggering tongue guide groove (77) and the inclined tongue guide hole (33) to be matched with the triggering tongue limiting end (76), the trigger piece (13) is rotatably arranged on a trigger piece rotating pin (76) of the locking bolt (12), a trigger piece pushing end (72) on the trigger piece (13) is matched with a trigger piece pushing pin (64) on the trigger piece (10), a trigger piece reset tension spring (14) is connected between the trigger piece (13) and the locking bolt (12), a locking bolt reset tension spring (9) is connected between the locking bolt (12) and the first spring column (32), the unlocking positioning piece (8) is slidably arranged on the rotating shaft (49) and the second guide pin (35) through an unlocking positioning piece guide notch (68) and an unlocking positioning piece guide groove (70), a three-in-one functional groove (71) on the unlocking positioning piece (8) is arranged on a three-in-one functional pin (73) of the trigger piece (13), and an unlocking positioning piece positioning groove (69) on the unlocking positioning piece (8) is arranged on a fourth guide pin (46) of the main locking bolt (6); the unlocking mechanism comprises a poking piece (19), a first transmission piece (17) and a second transmission piece (16), wherein a rotatable poking shaft (38) is arranged on the shell (1), a poking piece transmission pin (79) is arranged on the poking piece (19), a first transmission piece pushing end (80) and a first transmission piece transmission pin (81) are correspondingly arranged on the first transmission piece (17), a second transmission piece transmission sliding groove (83) and a second transmission piece transmission pin (82) are arranged on the second transmission piece (16), the poking piece (19) is arranged on the poking shaft (38), the second transmission piece (16) is rotatably arranged on the second guide pin (35), one end of the first transmission piece (17) is hinged on the poking piece transmission pin (79), the first transmission piece transmission pin (81) at the other end is movably connected on the second transmission piece transmission sliding groove (83) of the second transmission piece (16), the second transmission piece transmission pin (82) is connected on the locking transmission groove (78) of the locking tongue (12), and the first transmission piece (17) is rotatably arranged on the third transmission piece (80) in a matched mode; the safety mechanism comprises a safety piece (20) and a safety torsion spring (21), the safety piece (20) is rotatably arranged on the shell (1) through a safety shaft (42) and is correspondingly provided with a safety piece limiting end (86), a safety piece clearance groove (87), a safety piece limiting groove (88) and a safety piece hook (94), the shell (1) is provided with a third spring column (40) which is matched with the safety piece limiting groove (88) to limit the stroke of the safety piece (20), two ends of the safety torsion spring (21) are correspondingly connected to the safety piece hook (94) and the third spring column (40), and the safety piece clearance groove (87) is matched with an anti-riot trigger pin (41); when the lockset is locked and the internal insurance is arranged, the insurance piece limiting end (86) on the insurance piece (20) is matched with the anti-riot locking block (56) of the heaven and earth rod (3), so that the heaven and earth rod (3) is always kept in a locked state; when the door closing trigger and the locking and holding mechanism trigger the locking, the driving piece (7) is driven by the driving tension spring (18) to lock through the first driving pin (48), the third driving pin (51), the fourth driving pin (54) and the sixth driving pin (61), the fifth driving pin (57), the second driving pin (50) and the corresponding fourth driving limit groove (58), the fifth driving limit groove (60) and the first driving limit groove (43), the second driving limit groove (44) and the third driving limit groove (47) on the special-shaped lock bolts (2) on the left side and the right side, the annular lock bolts (5) and the main lock bolts (6) in a matched mode; when unlocking, the unlocking mechanism drives the door closing trigger and the locking retaining mechanism to act, and simultaneously drives the driving piece (7) to overcome the elastic force of the driving tension spring (18) and then drive the left and right heaven and earth rods (3 and 15), the special-shaped lock bolts (2) on the left and right sides, the annular lock bolts (5) and the main lock bolts (6) to unlock.

2. The door closing triggered automatic lock of claim 1, wherein: the trigger tongue (10) on be equipped with trigger tongue inclined plane (65), be equipped with on the locking tongue (12) and block tongue inclined plane (74), be equipped with helping hand tongue rotation round pin (75) on the locking tongue (12), helping hand tongue (11) rotationally set up on helping hand tongue rotation round pin (75), helping hand is equipped with on tongue (11) and draws power face (67) and sled face (66), draw power face (67) keep in same side and set up the outside of casing (1) panel with trigger tongue inclined plane (65), locking tongue inclined plane (74), sled face (66) set up the inboard of casing (1) panel.

3. The door closing triggered automatic lock of claim 1, wherein: the novel anti-theft lock is characterized in that a lock plate (23) is arranged on a door frame corresponding to a panel of the shell (1), a first lock hole (89), a second lock hole (90), a transverse diaphragm (91) and a third lock hole (92) are arranged on the lock plate (23), the first lock hole (89) is matched with a left special-shaped lock bolt (2) and an annular lock bolt (5), the second lock hole (90) is matched with a main lock bolt (6), the transverse diaphragm (91) is matched with a trigger tongue (10), and the third lock hole (92) is matched with a power assisting tongue (11), a locking tongue (12) and a right special-shaped lock bolt (2).

4. The door closing triggered automatic lock of claim 1, wherein: the anti-riot unlocking mechanism comprises an anti-riot locking piece (4), an anti-riot trigger pin (41), an anti-riot locking piece tension spring (22) and an anti-riot locking piece (56) arranged on a left ground rod (3), wherein the anti-riot locking piece (4) is slidably arranged on an anti-riot guide pin (28) through an anti-riot locking piece guide groove (84), an anti-riot locking groove (85) matched with the anti-riot locking piece (56) is correspondingly arranged on the anti-riot locking piece (4), the anti-riot locking piece tension spring (22) is connected between a spring hook of the anti-riot locking piece (4) and the anti-riot guide pin (28), and the anti-riot trigger pin (41) is movably arranged on the shell (1) and is fixed with an outdoor handle; during normal operation, the anti-riot trigger pin (41) is positioned in the anti-riot locking groove (85) and blocks the anti-riot locking plate (4) from moving; when the anti-riot trigger pin (41) is pulled out by violent breaking, the anti-riot locking groove (85) on the anti-riot locking plate (4) is locked on the anti-riot locking block (56) of the left-hand and right-hand rod (3) under the elastic action of the anti-riot locking plate tension spring (22).

5. The door closing triggered automatic lock of claim 4, wherein: the anti-riot locking plate (4) is provided with a blocking piece (95), and the shell (1) is provided with an anti-riot self-locking long screw (24) which is matched with the blocking piece (95) to prevent the anti-riot locking plate (4) from moving when not fortifying or an unlocking short screw (25) used for fortifying.

6. The door closing triggered automatic lock of claim 4, wherein: the anti-riot lock plate limiting pin (39) and the safety shaft (42) are arranged on the shell (1), and the guiding limiting edges on two sides of the anti-riot lock plate (4) are slidably arranged between the anti-riot lock plate limiting pin (39) and the safety shaft (42).