CN111911000B

CN111911000B - Lock set

Info

Publication number: CN111911000B
Application number: CN202010918740.9A
Authority: CN
Inventors: 李保福; 李启平; 杨绍华; 张晓明; 温联森
Original assignee: Zhuhai Youte IoT Technology Co Ltd
Current assignee: Zhuhai Unitech Power Technology Co Ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2022-02-01
Anticipated expiration: 2040-09-03
Also published as: CN111911000A

Abstract

The application provides a lock, and relates to the technical field of theft prevention. The lockset comprises a lock shell, a lock cylinder and a lock tongue. The lock core is arranged in the lock shell, a lock hole is arranged in the lock core, the lock tongue is provided with an inclined tongue part and a dead tongue part, the inclined tongue part and the dead tongue part are fixedly connected or integrally formed, and the lock tongue is provided with an inclined tongue stopper extending out of the lock shell and a dead tongue stopper extending out of the lock shell; when the bolt is at the bolt block, the bolt part extends out of the lock shell, and the dead bolt part is positioned in the lock shell; when the bolt is at the dead bolt position, the inclined tongue part and the dead bolt position extend out of the lock shell. The lock core is in transmission connection with the lock tongue, and the lock tongue can be switched to the dead tongue from the latch tongue rail by inserting the key into the lock hole and rotating the lock core. One spring bolt is provided with an oblique spring bolt gear and a dead bolt gear, when the spring bolt is positioned at the oblique spring bolt gear, the lockset can be used as a common indoor lock, the spring bolt is positioned at the dead bolt gear by rotating the lock cylinder through a key, the anti-theft performance of the lockset can be improved, namely one spring bolt enables the lockset to meet different use scenes and different anti-theft performance requirements.

Description

Lock set

Technical Field

The application relates to the technical field of burglary prevention, in particular to a lockset.

Background

At present, the lock on the market comprises a latch bolt and a dead bolt which are respectively independent parts and respectively perform respective functions, so that the lock can be used as a common indoor lock and an anti-theft lock, but the structure of the lock is complicated.

Disclosure of Invention

The embodiment of the application provides a get tool to lock to improve the complicated problem of current tool to lock structure.

The embodiment of the application provides a lockset, which comprises a lock shell, a lock cylinder and a lock tongue. The lock core is arranged in the lock shell, a lock hole is arranged in the lock core, the lock tongue is provided with an inclined tongue part and a dead tongue part, the inclined tongue part and the dead tongue part are fixedly connected or integrally formed, and the lock tongue is provided with an inclined tongue stopper extending out of the lock shell and a dead tongue stopper extending out of the lock shell; when the bolt is at the bolt block, the bolt part extends out of the lock shell, and the dead bolt part is positioned in the lock shell; when the bolt is at the dead bolt position, the inclined tongue part and the dead bolt position extend out of the lock shell. The lock core is in transmission connection with the lock tongue, and the lock tongue can be switched to the dead tongue from the latch tongue rail by inserting the key into the lock hole and rotating the lock core.

According to the technical scheme, the inclined tongue part and the dead tongue part are fixedly connected or integrally formed to form the spring bolt, the spring bolt is provided with an inclined tongue stopper and a dead tongue stopper, when the spring bolt is positioned at the inclined tongue stopper, the lockset can be used as a common indoor lock, and when the requirement on theft prevention is higher, the lock core is rotated by a key to enable the spring bolt to be positioned at the dead tongue stopper, so that the theft prevention performance of the lockset can be improved, namely, one spring bolt enables the lockset to meet different use scenes and meet different theft prevention performance requirements, and parts of the lockset can be reduced, so that the structure of the lockset is simplified.

In addition, the lockset of the embodiment of the application also has the following additional technical characteristics:

in some embodiments of the application, the lockset further comprises a front handle and a rear handle, the front handle is rotatably arranged on the front side of the lock shell, and the rear handle is rotatably arranged on the rear side of the lock shell; the lockset also comprises a lock tongue driving medium, and the lock tongue is fixedly connected with the lock tongue driving medium; the lock core is in transmission connection with the lock tongue transmission part, and the rear handle is in transmission connection with the lock tongue transmission part; the lock core rotates and can drive the spring bolt through the spring bolt driving medium and remove, and back handle rotates and can drive the spring bolt through the spring bolt driving medium and remove to make the spring bolt stretch out or return the lock shell.

Among the above-mentioned technical scheme, the setting of spring bolt driving medium for the drive power of lock core and back handle can not direct action on the spring bolt, reduces the harm to the spring bolt, improves the life and the security performance of spring bolt.

In some embodiments of the present application, the rear handle includes a first cog and a rear handle, the first cog being secured to the rear handle; the lockset also comprises a first gear transmission mechanism, and the rear handle is in transmission connection with the bolt transmission part through the first gear transmission mechanism; the first gear transmission mechanism comprises a first gear, a second gear, a third gear and a second fluted disc, the first gear and the second gear are rotatably arranged in the lock shell, and the first fluted disc, the first gear, the second gear and the third gear are sequentially meshed; the connecting shaft of second fluted disc is located in the cover of third gear, and spring bolt driving medium rotatable coupling can drive the second fluted disc and rotate thereby drive the spring bolt along the direction removal of returning the lock shell after the angle is predetermine in the rotation of third gear.

Among the above-mentioned technical scheme, back handle is connected through the transmission of first gear drive mechanism with the spring bolt driving medium, and the back handle rotation range of being convenient for corresponds the control with the proportion of spring bolt displacement distance, and meshing makes the transmission more stable between the gear simultaneously, can be more stable turn into the removal of spring bolt with the rotation of back handle. In addition, the third gear rotates and just can drive the second fluted disc to rotate after presetting the angle, and the second fluted disc drives the in-process that the spring bolt resets under the effect such as piece that resets like this, and the third gear can not rotate. In addition, first gear drive can adapt to the distance between back handle and the spring bolt driving medium to the action that makes back handle can transmit for the spring bolt driving medium, and final drive spring bolt removes.

In some embodiments of the present application, the first gear drive mechanism further includes a third cog rotatably coupled to the bolt drive member, the third cog being engaged with the second cog; the lock core is provided with a shifting block, and the lock core can rotate to drive the lock tongue to move by pushing the third fluted disc to rotate relative to the lock tongue driving part through the shifting block.

Among the above-mentioned technical scheme, third fluted disc and the meshing of second fluted disc can drive the third fluted disc simultaneously and rotate when the second fluted disc rotates for the third fluted disc is unanimous with the motion of second fluted disc, thereby the lock core of being convenient for promotes the relative spring bolt driving medium rotation of third fluted disc through the shifting block and drives the spring bolt and remove.

In some embodiments of the application, the first gear transmission mechanism further includes a first elastic resetting member, the third fluted disc is in transmission connection with the bolt transmission member through the first elastic resetting member, and the lock cylinder rotates to drive the bolt to move along the direction of returning the lock case by pushing the third fluted disc to overcome the elastic force of the first elastic resetting member to rotate relative to the bolt transmission member through the shifting block.

Among the above-mentioned technical scheme, the lock core rotates and can overcome the relative spring bolt driving medium of the elastic force that first elasticity reset piece through the shifting block promotion third fluted disc and rotate, and after the effort that is used for on the third fluted disc disappeared, the third fluted disc can reset under the effect that first elasticity reset piece, and the spring bolt of being convenient for in time resets.

In some embodiments of the application, the lockset further comprises a front handle and a rear handle, the front handle is rotatably arranged on the front side of the lock shell, and the rear handle is rotatably arranged on the rear side of the lock shell; the lockset also comprises a clutch piece and a free setting mechanism, the clutch piece is circumferentially locked relative to the front handle, and the free setting mechanism is used for driving the clutch piece to move towards the direction close to or far away from the rear handle so as to enable the clutch piece to be meshed with or separated from the rear handle; when the clutch piece is separated from the rear handle, the front handle can idle relative to the rear handle; when separation and reunion piece and back handle meshing, preceding handle can drive back handle through separation and reunion piece and rotate.

In the technical scheme, the free setting mechanism can enable the clutch piece to be meshed with or separated from the rear handle, when the clutch piece is separated from the rear handle, the front handle idles relative to the rear handle, namely, the front handle cannot drive the rear handle to rotate, the lock tongue cannot return into the lock shell, and the lock can only be unlocked through the rear handle or a key, so that the safety performance of the lock is improved; when separation and reunion spare and back handle meshing, preceding handle can drive back handle through the separation and reunion spare, and preceding back hand and back handle homoenergetic are unblanked this moment, and the tool to lock can regard as the passageway lock to use like this, and this tool to lock can regard as ordinary indoor lock, pickproof lock and passageway lock to use promptly, and its application scene is wider.

In some embodiments of the present application, the trip setting mechanism includes a trip button movably disposed at a rear side of the lock case and a wedge block movably disposed in the lock case; the wedge-shaped block is provided with an initial position and a working position, when the wedge-shaped block is positioned at the initial position, the clutch piece is meshed with the rear handle, when the wedge-shaped block is positioned at the working position, the wedge-shaped block is inserted between the clutch piece and the rear handle, and the clutch piece is separated from the rear handle by the wedge-shaped block; the free key action can drive the wedge block to move from the initial position to the working position.

Among the above-mentioned technical scheme, realize separation and reunion spare and back handle meshing or separation, convenient operation through the mode of button.

In some embodiments of the present application, the wedge block is provided with a convex portion, and the rear handle is provided with a concave portion for mating with the convex portion; when the wedge block is located at the initial position and the concave part is aligned with the protrusion, the free key action can drive the wedge block to act so that the convex part is inserted into the concave part, and therefore the wedge block is located at the working position; when the wedge block is located at the working position, the rear handle rotates to enable the concave part and the convex part to be staggered so that the convex part exits from the concave part, and therefore the wedge block is located at the initial position.

Among the above-mentioned technical scheme, convex part and concave part cooperation are at the in-process of rotating back handle at every turn, and back handle can act on the convex part so that the wedge returns to initial position from the operating position, and the wedge of being convenient for resets, rotates back handle at every turn after, and the wedge can get back to initial position, and the tool to lock becomes the passageway lock.

In some embodiments of the present application, the free setting mechanism further includes a first elastic member, one end of the first elastic member is fixed relative to the lock case, and the other end of the first elastic member is fixed relative to the wedge block; the wedge block can overcome the elastic force of first elastic component and move from initial position to the operating position, and first elastic component can keep the wedge block at the operating position under the effect of elastic force.

Among the above-mentioned technical scheme, the both ends of first elastic component are fixed relatively lock shell and wedge respectively for first elastic component can keep stable relative relation with lock shell and wedge, is favorable to first elastic component to exert the effort to the wedge. And the setting of draw-in groove makes first elastic component can keep wedge at operating position to make clutch spare and back handle can keep steadily at the state of separation, avoid the wedge to reset to initial position under the effect of the elastic force of first elastic component, improve the security performance of tool to lock.

In some embodiments of the present application, the lock further includes a locking pin and a second elastic return element, the locking pin being connected to the inside of the lock case by the second elastic return element, the locking pin having a release position and a locking position; when the lock is at the releasing position, the lock pin prevents the spring bolt from moving towards the direction of returning into the lock shell, and when the lock pin is at the locking position, the lock pin allows the spring bolt to move towards the direction of returning into the lock shell; when the locking pin is in the release position, the lock core rotates to shift the locking pin to rotate by overcoming the elastic force of the second elastic reset piece, so that the locking pin is in the locking position.

Among the above-mentioned technical scheme, the setting of lock pin can increase the procedure of unblanking, improves the degree of difficulty of unblanking, and the time of extension unblanking further improves the security of tool to lock.

In some embodiments of the present application, a shifting block is provided on the lock cylinder; when the locking round pin is in the release position, the lock core rotates and can overcome the elastic force of second elasticity piece that resets and stir the locking round pin and rotate through the shifting block to make the locking round pin be in the locking position.

Among the above-mentioned technical scheme, the setting of shifting block is convenient for stir the locking round pin and rotates to make the tool to lock unblank.

In some embodiments of the present application, the lock further comprises a locking member for locking the latch bolt in the locked position against the elastic member of the second elastic return member.

Among the above-mentioned technical scheme, the locking piece can lock the locking round pin in locking position, need not unblank at every turn and all need pass through the step of stirring the locking round pin, and the normal unblanking of being convenient for, for example the family of being convenient for unblanks.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic view of a lock according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a lock according to a second perspective provided by the embodiment of the present application;

FIG. 3 is a schematic view of the latch bolt in the latch stop;

FIG. 4 is a schematic view of the deadbolt in deadbolt position;

FIG. 5 is a schematic view of the clutch member, the free setting mechanism, and the rear handle connection and rear panel;

FIG. 6 is a schematic view of the clutch member of FIG. 5 engaged with the rear handle;

FIG. 7 is a schematic view of the clutch member of FIG. 5 disengaged from the rear handle;

FIG. 8 is a schematic view of the wedge block in an initial position;

FIG. 9 is a schematic view of the wedge block in the operating position;

fig. 10 is a first perspective view of the connection of the deadbolt drive member to the lock cylinder and first gear drive mechanism;

FIG. 11 is a schematic view from a second perspective showing the connection of the deadbolt actuator with the lock cylinder and the first gear drive;

FIG. 12 is a schematic view of the drive connection of the deadbolt drive member to the lock cylinder;

FIG. 13 is a schematic view of the lock in an initial state (as a channel lock);

FIG. 14 is a schematic view of the lock with the striker in the release position;

FIG. 15 is a schematic view of the lock unlocked by turning the rear handle (and also showing the direction of turning the lock unlocked by turning the key on the lock cylinder);

FIG. 16 is a schematic view of the deadbolt of the lock in deadbolt position.

Icon: 100-a lock; 10-a lock case; 11-a front panel; 12-a rear panel; 13-tongue hole; 20-a lock cylinder; 21-a keyhole; 22-a shifting block; 221-a first toggle portion; 222-a second toggle portion; 30-a bolt; 31-oblique tongue portion; 32-a tongue-retaining portion; 40-front handle; 50-rear handle; 51-a first toothed disc; 52-rear handle; 53-a recess; 54-a second engagement; 60-a clutch; 61-square hole; 62-a first bevel; 63-a first engagement; 70-a free setting mechanism; 71-free keys; 711-a second bevel; 72-a wedge block; 721-a third bevel; 722-a fourth slope; 723-card slot; 724-convex part; 73-a first elastic member; 80-a tongue drive; 90-a first gear transmission; 92-a first gear; 93-a second gear; 94-third gear; 95-a second toothed disc; 951-a connecting shaft; 96-a third fluted disc; 97-a first elastic return member; 98-fixed pins; 110-a locking pin; 111-a positioning slot; 120-a second elastic return member; 130-a locking element; a-counterclockwise direction; b-clockwise direction.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Examples

As shown in fig. 1-16, the present embodiment provides a lock 100, where the lock 100 includes a lock case 10, a key cylinder 20, a locking tongue 30, a front handle 40, a rear handle 50, a clutch 60, and a free setting mechanism 70.

As shown in fig. 1 and 2, the lock case 10 includes a front panel 11 at a front side and a rear panel 12 at a rear side, the front panel 11 and the rear panel 12 define an accommodating chamber, a bolt hole 13 is provided between the front panel 11 and the rear panel 12, and the bolt 30 can extend out of or retract into the bolt hole 13.

In the present embodiment, the lock core 20 is provided on the lock case 10 (only a part of the lock case 10 is shown in the drawings), the lock hole 21 is provided in the lock core 20, as shown in fig. 3 and 4, the latch tongue 30 has an inclined tongue portion 31 and a dead tongue portion 32, the inclined tongue portion 31 and the dead tongue portion 32 are fixedly connected or integrally formed, and the latch tongue 30 has an inclined tongue rail extending out of the lock case 10 and a dead tongue rail extending out of the lock case 10. As shown in fig. 3, when the locking tongue 30 is in the locking tongue rail, the locking tongue 31 extends out of the lock case 10, and the locking tongue 32 is located in the lock case 10. As shown in fig. 4, when the dead bolt 30 is at the dead bolt position, both the latch bolt portion 31 and the dead bolt position extend out of the lock case 10, and the length of the bolt 30 extending out of the lock case 10 when the bolt 30 is at the dead bolt position is greater than the length of the bolt 30 extending out of the lock case 10 when the bolt 30 is at the dead bolt position. The key cylinder 20 is in driving connection with the deadbolt 30, and insertion of a key into the key hole 21 and rotation of the key cylinder 20 causes the deadbolt 30 to switch from deadbolt position to deadbolt position. The inclined tongue portion 31 and the dead bolt portion 32 are fixedly connected or integrally formed to form the bolt 30, such a bolt 30 has an inclined bolt rail and a dead bolt rail, when the bolt 30 is at the inclined bolt rail, the lock 100 can be used as a common indoor lock, that is, has a certain anti-theft capability, but the anti-theft capability is weaker, and when the anti-theft requirement is higher, the lock core 20 is rotated by a key to enable the bolt 30 to be at the dead bolt rail, so that the anti-theft performance of the lock 100 can be improved, that is, one bolt 30 enables the lock 100 to meet different use scenes and different anti-theft performance requirements, and parts of the lock 100 can be reduced, so that the structure of the lock 100 is simplified.

In the present embodiment, the latch tongue 31 is integrally formed with the dead tongue 32. The oblique tongue portion 31 and the dead tongue portion 32 are fixedly connected, that is, the oblique tongue portion 31 and the dead tongue portion 32 are fixedly connected by means of screws, bolts and the like.

In this embodiment, the front handle 40 is rotatably provided at the front side of the lock case 10, and the rear handle 50 is rotatably mounted at the rear side of the lock case 10.

As shown in fig. 5-8, clutch 60 is located lock shell 10, clutch 60 is close to the one end of preceding handle 40 and is equipped with quad slit 61, locate the square axle that matches with the direction hole on the preceding handle 40, the square axle is inserted and is located quad slit 61, make clutch 60 handle 40 circumference locking before relative, circumference is portable, in order to facilitate clutch 60 can be timely reset, set up second elastic component (not shown in the figure) between clutch 60 and preceding handle 40, the second elastic component can be the spring, elastic component such as shell fragment, in this embodiment, the second elastic component is the spring, the one end of second elastic component is connected in preceding handle 40, the other end of second elastic component is connected in clutch 60. In other embodiments, also can be other cooperation modes between preceding handle 40 and the back handle 50, as long as make the relative preceding handle 40 circumference locking of clutch spare 60 can, for example locate quad slit 61 on the preceding handle 40, the clutch spare 60 is close to the one end of preceding handle 40 and is equipped with the square shaft that matches with quad slit 61, square shaft is inserted and is located quad slit 61, for example again, set up the U-shaped groove along clutch spare 60 axial extension on the clutch spare 60, there is the arch that is used for with the U-shaped groove matching on the preceding handle 40, the arch is located the U-shaped inslot, the relative both sides wall in U-shaped groove plays the spacing effect of circumference to the arch.

In this embodiment, the edge of clutch 60 is provided with a first ramp 62. The clutch 60 is further provided with a first engaging portion 63, the rear handle 50 is provided with a second engaging portion 54 engaged with the first engaging portion 63, the first engaging portion 63 may be an engaging protrusion disposed on the clutch 60, the second engaging portion 54 may be an engaging groove engaged with the engaging protrusion, or one engaging portion may be an engaging groove disposed on the clutch 60, and the second engaging portion 54 may be an engaging protrusion engaged with the engaging groove.

The free setting mechanism 70 is for driving the clutch member 60 to move in a direction to approach or separate from the rear handle 50 to engage or disengage the clutch member 60 with or from the rear handle 50, in effect engaging the first engaging portion 63 with the second engaging portion 54; when the clutch 60 is disengaged from the rear handle 50, the front handle 40 can idle relative to the rear handle 50; when the clutch 60 is engaged with the rear handle 50, the front handle 40 can drive the rear handle 50 to rotate by the clutch 60. The free setting mechanism 70 can enable the clutch piece 60 to be meshed with or separated from the rear handle 50, when the clutch piece 60 is separated from the rear handle 50, the front handle 40 idles relative to the rear handle 50, namely the front handle 40 cannot drive the rear handle 50 to rotate, the lock tongue 30 cannot return into the lock case 10, and the lock can only be unlocked through the rear handle 50 or a key, so that the safety performance of the lock 100 is improved; when separation and reunion piece 60 and back handle 50 mesh, preceding handle 40 can drive back handle 50 through separation and reunion piece 60, and preceding back hand and back handle 50 homoenergetic are unblanked this moment, and tool to lock 100 can regard as the passageway lock to use like this, and this tool to lock 100 can regard as ordinary indoor lock, pickproof lock and passageway lock to use promptly, and its applied scene is wider.

In this embodiment, the trip setting mechanism 70 includes a trip button 71, a wedge 72, and a first resilient member 73. The free button 71 is movably disposed at the rear side (the rear panel 12) of the lock case 10, and the free button 71 has a second inclined surface 711. The wedge block 72 is movably arranged in the lock shell 10, the wedge block 72 is provided with a third inclined surface 721 contacted with the second inclined surface 711 and a fourth inclined surface 722 contacted with the first inclined surface 62 of the clutch 60, the wedge block 72 is provided with an initial position and a working position, the free button 71 is driven to move towards the direction close to the front handle 40 by pressing the free button 71 from the rear side of the lock shell 10, the third inclined surface 721 on the wedge block 72 can slide along the second inclined surface 711 on the free button 71, and the fourth inclined surface 722 of the wedge block 72 slides along the first inclined surface 62 of the clutch 60, so that the wedge block 72 moves towards the space between the clutch 60 and the rear handle 50, and the wedge block 72 moves from the initial position to the working position. When the wedge block 72 is located at the initial position, the clutch 60 is engaged with the rear handle 50 and is kept in an engaged state under the action of the second elastic member, and when the wedge block 72 is located at the working position, the wedge block 72 is inserted between the clutch 60 and the rear handle 50, and the wedge block 72 enables the clutch 60 to be separated from the rear handle 50 by overcoming the elastic force of the second elastic member. The clutch piece 60 is engaged with or separated from the rear handle 50 in a key mode, and the operation is convenient.

As shown in fig. 8 and 9, the lock case 10 is provided with a fixing groove (the lock case 10 is not shown), the wedge block 72 is provided with a locking groove 723, the first elastic member 73 is in an "Ω" shape, one end of the first elastic member 73 is clamped in the fixing groove of the lock case 10 and fixed relative to the lock case 10, and the other end of the first elastic member 73 is clamped in the locking groove of the wedge block 72 and fixed relative to the wedge block 72. The wedge block 72 is movable from the initial position to the working position against the elastic force of the first elastic member 73. In this embodiment, there are two first elastic members 73, two first elastic members 73 are respectively disposed on two opposite sides of the wedge-shaped block 72, and correspondingly, two locking slots 723 are correspondingly disposed on the wedge-shaped block 72, and two fixing slots are correspondingly disposed on the lock case 10. In other embodiments, the two ends of the first elastic member 73 may be directly and fixedly connected to the wedge block 72 and the lock case 10, respectively.

The two ends of the first elastic piece 73 are fixed relative to the lock shell 10 and the wedge block 72 respectively, so that the first elastic piece 73 can keep a stable relative relation with the lock shell 10 and the wedge block 72, the first elastic piece 73 can exert acting force on the wedge block 72, and the clamping groove 723 is arranged so that the first elastic piece 73 can keep the wedge block 72 at a working position, so that the clutch piece 60 and the rear handle 50 can be kept in a separated state stably, the wedge block 72 is prevented from automatically resetting to an initial position under the action of the elastic force of the first elastic piece 73, and the safety performance of the lockset 100 is improved.

Further, the wedge block 72 is provided with a convex portion 724, the convex portion 724 is semicircular, and the rear handle 50 is provided with a concave portion 53 for matching with the convex portion 724 of the wedge block 72; when the wedge block 72 is in the initial position and the recess 53 is aligned with the protrusion 724 of the wedge block 72, the free button 71 is actuated to drive the protrusion 724 of the wedge block 72 to be inserted into the recess 53, so that the wedge block 72 is located in the working position, and after the protrusion 724 is inserted into the recess 53, the wedge block 72 is located between the clutch member 60 and the rear handle 50, so as to separate the clutch member 60 from the rear handle 50; when the wedge block 72 is located at the working position, the rear handle 50 rotates to enable the concave portion 53 to be staggered with the convex portion 724 of the wedge block 72 so that the convex portion 724 of the wedge block 72 can be separated from the concave portion 53, the wedge block 72 is located at the initial position, and the clutch piece 60 can be reset to be meshed with the rear handle 50 under the action of the second elastic piece. Convex part 724 and concave part 53 cooperation, at the in-process of handle 50 after rotating at every turn, back handle 50 can act on convex part 724 so that wedge 72 returns to initial position from the operating position, and the wedge 72 of being convenient for resets, and after handle 50 rotated at every turn, wedge 72 can get back to initial position, and tool to lock 100 becomes the channel lock.

As shown in fig. 10-13, in the present embodiment, the lock 100 further includes a bolt driving element 80, and the bolt 30 is fixedly connected to the bolt driving element 80; the lock core 20 is in transmission connection with the bolt transmission piece 80, and the rear handle 50 is in transmission connection with the bolt transmission piece 80; the rotation of the lock core 20 can drive the lock tongue 30 to move through the lock tongue driving member 80, and the rotation of the rear handle 50 can drive the lock tongue 30 to move through the lock tongue driving member 80, so that the lock tongue 30 extends out of or returns to the lock case 10. Due to the arrangement of the bolt transmission piece 80, the driving force of the lock cylinder 20 and the driving force of the rear handle 50 cannot directly act on the bolt 30, the damage to the bolt 30 is reduced, and the service life and the safety performance of the bolt 30 are improved.

Further, rear handle 50 includes a first toothed plate 51 and a rear handle 52, first toothed plate 51 is connected to rear handle 52, and clutch member 60 is adapted to engage with and disengage from first toothed plate 51. The lock 100 further includes a first gear drive 90, and the rear handle 50 is drivingly connected to the bolt drive 80 via the first gear drive 90. The first gear transmission mechanism 90 comprises a first gear 92, a second gear 93, a third gear 94, a second gear 95, a third gear 96 and a first elastic reset piece 97, wherein the first gear 51 is fixed on the rear handle 52, the first gear 92 and the second gear 93 are rotatably arranged in the lock shell 10, and the first gear 51, the first gear 92, the second gear 93 and the third gear 94 are sequentially meshed; the third gear 94 is sleeved on the connecting shaft 951 of the second gear 95, the bolt transmission member 80 is rotatably connected to the second gear 95, and the third gear 94 can rotate by a predetermined angle to drive the second gear 95 to rotate so as to drive the bolt 30 to move in a direction of returning to the lock case 10. The third cog 96 is rotatably coupled to the latch bolt actuator 80, and the third cog 96 is engaged with the second cog 95; the lock core 20 is provided with a shifting block 22, and the lock core 20 can be rotated to drive the third fluted disc 96 to rotate relative to the bolt driving member 80 through the shifting block 22, so as to drive the bolt 30 to move. The third toothed disc 96 is rotatably connected to the bolt driving member 80 via a first elastic restoring member 97, and the lock cylinder 20 can rotate to drive the bolt 30 to move in a direction of returning to the lock case 10 by pushing the third toothed disc 96 to rotate relative to the bolt driving member 80 via the shifting block 22 against the elastic force of the first elastic restoring member 97. The transmission of back handle 50 and spring bolt driving medium 80 through first gear drive mechanism 90 is connected, and the range of rotation of back handle 50 of being convenient for corresponds the control with the proportion of spring bolt 30 migration distance, and meshing makes the transmission more stable between the gear simultaneously, can be more stable turn into the removal of spring bolt 30 with the rotation of back handle 50. In addition, third gear 94 can drive second fluted disc 95 to rotate after rotating the predetermined angle, and second fluted disc 95 drives the in-process that spring bolt 30 reset under the effect such as piece that resets like this, and third gear 94 can not rotate. Rotation of the lock cylinder 20 can push the third toothed disc 96 to rotate relative to the latch bolt driving member 80 against the elastic force of the first elastic restoring member 97 through the shifting block 22, and it can be understood that the lock cylinder 20 is in driving connection with the latch bolt 30 through the third toothed disc 96 and the latch bolt driving member 80. After the acting force acting on the third fluted disc 96 disappears, the third fluted disc 96 can reset under the action of the first elastic resetting piece 97, so that the bolt 30 can reset in time. In this embodiment, the first elastic restoring member 97 is a torsion spring, which is sleeved on the fixing pin 98 and is connected to the bolt driving member 80 and the third fluted disc 96 respectively.

In this embodiment, the first gear 51 is an arc-shaped gear fixed to the rear handle 52, and the second gear 95 and the third gear 96 are fan-shaped gears. In this embodiment, the first gear drive 90 comprises a three-stage toothed drive so that the second gear plate is just unlocked counterclockwise by depressing the rear handle 52. In addition, first gear drive 90 includes that the transmission of tertiary tooth can adapt to the distance between rear handle 50 and the spring bolt transmission medium 80 to the action that makes rear handle 50 can transmit for spring bolt transmission medium 80, finally drives spring bolt 30 and removes.

In other embodiments, the number of gears of the first gear mechanism 90 can be adjusted according to actual needs, for example, the first gear mechanism 90 may only include the first gear 92, the third gear 94, the second gear 95, the third gear 96 and the first elastic reset element 97, and according to the principle of changing rotation of the gear transmission, to rotate the rear handle 50, the bolt 30 can be retracted into the lock case 10, the rear handle 50 should be rotated in the counterclockwise direction.

In some cases, the complication of the unlocking procedure can increase the security of the lock 100. In this embodiment, the lock 100 further includes a lock pin 110, a second elastic reset 120 and a locking member 130, the lock pin 110 is connected to the inside of the lock case 10 through the second elastic reset 120, and the lock pin 110 has a release position and a locking position; when the locking is in the releasing position, the locking pin 110 prevents the bolt 30 from moving in the direction of retreating into the lock case 10, and when the locking pin 110 is in the locking position, the locking pin 110 allows the bolt 30 to move in the direction of retreating into the lock case 10; when the locking pin 110 is in the release position, the rotation of the key cylinder 20 can toggle the locking pin 110 to rotate against the elastic force of the second elastic restoring member 120, so that the locking pin 110 is in the locking position. The locking member 130 serves to lock the locking pin 110 in the locking position against the elastic member of the second elastic restoring member 120.

As shown in fig. 14, 15 and 16, the locking pin 110 is rotatably connected in the lock case 10, the locking pin 110 is provided with a positioning groove 111, one end of the second elastic reset member 120 is connected to the lock case 10, the other end of the second elastic reset member is connected to the locking pin 110, the locking member 130 is a screw, the lock case 10 is provided with a screw hole screwed with the screw, when the locking pin 110 is arranged at the locking position, the locking pin 110 compresses the second elastic reset member 120 and is clamped between the end surface of the screw head of the screw and the lock case 10 by the screw, and the screw head of the screw is positioned in the positioning groove 111 on the locking pin 110. When the locking member 130 is released, so that the locking member 130 exits from one end of the screw hole by a distance, so that the end surface of the screw head of the locking member 130 close to the locking pin 110 exits from the positioning groove 111, the locking pin 110 is bounced upward by the elastic force of the second elastic restoring member 120, so that the end of the locking pin 110 abuts against the end of the locking tongue 30 located at one end inside the lock case 10, the locking tongue 30 is prevented from moving in the direction of retreating into the lock case 10, and the locking pin 110 is in the release position.

It should be noted that the latch bolt 110 has a release position only when the latch bolt 30 is in the deadbolt position, and when the latch bolt 30 is in the deadbolt position, the deadbolt 32 will force the latch bolt 110 to compress the second elastic return 120 so that the latch bolt 110 is always in the latched position.

The shifting block 22 on the key cylinder 20 has a first shifting portion 221 and a second shifting portion 222, the first shifting portion 221 is used for shifting the third gear plate 96 to rotate so as to move the lock tongue 30, and the second shifting portion 222 is used for shifting the lock pin 110 in the release position to the locking position.

In the present embodiment, taking the lock 100 installed on a bedroom door as an example, the lock 100 has a locked state and an unlocked state; when the lock 100 is in the locked state, the bolt 30 is in the latch or deadbolt position, and when the lock 100 is in the unlocked state, the bolt 30 is retracted into the housing 10.

As shown in fig. 15, the default initial state of the lock 100 is that the lock tongue 30 is in a state of a latch bolt stop and the wedge block 72 is located at the initial position, when the wedge block 72 is located at the initial position, the clutch 60 is engaged with the rear handle 50, the front handle 40 and the rear handle 50 are connected through the clutch 60, the front handle 40 can drive the rear handle to rotate through the clutch 60, so that the lock tongue 30 is driven to move through the first gear transmission mechanism 90 to retract the lock tongue 30 into the lock case 10 to unlock the lock 100, that is, when the wedge block 72 is located at the initial position and the clutch 60 is engaged with the rear handle 50, the lock tongue 30 can be retracted into the lock case 10 by driving the front handle 40 and the rear handle 50 to rotate, the lock 100 at this time serves as a passage lock, and the lock 100 does not have an anti-theft function.

When the lockset 100 is required to have an anti-theft function, the free key 71 is pressed from the rear side of the lock shell 10, the free key 71 drives the wedge block 72 to move from the initial position to the working position, the wedge block 72 enables the clutch 60 to be separated from the rear handle 50, the front handle 40 can idle relative to the rear handle 50, namely, the bolt 30 cannot be retracted into the lock shell 10 by rotating the front handle 40. The deadbolt 30 can only be driven back into the lock case 10 by turning the rear handle 50 or by inserting a key into the lock hole 21 and turning the key cylinder 20.

If unblank in the bedroom, if then rotate back handle 50 along clockwise B, can drive third gear 94 through first gear 92 and second gear 93 and rotate along anticlockwise A, can make a lateral wall of the protruding position on the pore wall of the shaft hole of third gear 94 and the perisporium of connecting axle 951 of second fluted disc 95 support and lean on after third gear 94 rotates preset angle, third gear 94 continues to rotate along anticlockwise A, can drive second fluted disc 95 simultaneously and rotate along anticlockwise A, third fluted disc 96 rotates along clockwise B, thereby make spring bolt 30 retract in lock shell 10. If the lock is unlocked by the key, the lock core 20 is rotated in the counterclockwise direction a, so that the second toggle portion 222 on the lock core 20 toggles one end of the third fluted disc 96 in the arc-shaped extending direction, and the third fluted disc 96 rotates in the clockwise direction, so that the lock tongue 30 retracts into the lock case 10, and in this process, the third gear 94 may not rotate along with the second fluted disc 95 due to the existence of the preset angle. It should be noted that, the key cylinder 20 is rotated from indoor, i.e. clockwise B, to rotate the third toothed disc 96 clockwise B, so as to retract the lock tongue 30 into the lock case 10, and the key cylinder 20 is rotated from outdoor, i.e. counterclockwise a, to rotate the third toothed disc 96 counterclockwise a, so as to retract the lock tongue 30 into the lock case 10, which is shown to be unlocked by a key from indoor.

To enhance the anti-theft feature of the lock 100, as shown in fig. 16, the key cylinder 20 is rotated in the counterclockwise direction a to allow the second toggle portion 222 of the key cylinder 20 to toggle the other end of the arc extending direction of the third toothed disc 96, so that the third toothed disc 96 is rotated in the counterclockwise direction a, and the bolt 30 is driven to further extend out of the lock case 10 by the first elastic restoring member 97 and the bolt driving member 80, so that the bolt 30 is located at the dead bolt position. It should be noted that, from the indoor, i.e. counterclockwise, rotation of lock cylinder 20 causes third toothed disc 96 to be rotated in counterclockwise direction a, so that locking bolt 30 extends further out of lock case 10 to be located at the deadbolt lock stop, and from the outdoor, rotation of lock cylinder 20 in clockwise direction B causes third toothed disc 96 to be rotated in clockwise direction B, so that locking bolt 30 extends further out of lock case 10 to be located at the deadbolt lock stop, and the lock is shown unlocked by a key from the indoor.

When the lock 100 is in the locked state and the bolt 30 is in the deadbolt shift, if the locking member 130 locks the lock bolt 110 at the locking position, if the front handle 40 is engaged with the rear handle 50, the bolt 30 may be driven to return into the lock case 10 by rotating the front handle 40 or rotating the rear handle 50 or rotating the key cylinder 20, so that the lock 100 is in the unlocked state, and if the front handle 40 is separated from the rear handle 50, the bolt 30 may be driven to return into the lock case 10 by rotating the rear handle 50 or rotating the key cylinder 20, so that the lock 100 is in the unlocked state. If the locking member 130 is released and the locking pin 110 is in the release position, the key can only be used to rotate the key cylinder 20, and the second toggle part 222 of the key cylinder 20 is used to toggle the locking pin 110 to rotate counterclockwise, so that the locking pin 110 is in the locking position.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lock, comprising: the lock comprises a lock shell, a lock cylinder and a bolt;

the lock core is arranged in the lock shell, a lock hole is arranged in the lock core, the bolt is provided with an inclined tongue part and a dead tongue part, the inclined tongue part and the dead tongue part are fixedly connected or integrally formed, and the bolt is provided with an inclined bolt stop extending out of the lock shell and a dead tongue stop extending out of the lock shell;

when the bolt is at the dead bolt gear, the dead bolt part extends out of the lock shell, the dead bolt part is positioned in the lock shell, and when the bolt is at the dead bolt gear, the dead bolt part and the dead bolt gear both extend out of the lock shell;

the lock cylinder is in transmission connection with the bolt, and a key is inserted into the lock hole and rotates the lock cylinder to enable the bolt to be switched from the latch bolt gear to the dead bolt gear;

the lockset also comprises a front handle and a rear handle, the front handle is rotatably arranged on the front side of the lock shell, and the rear handle is rotatably arranged on the rear side of the lock shell;

the tool to lock still includes clutch spare and free setting mechanism, free setting mechanism includes the wedge, the wedge is movably located in the lock shell, the wedge has initial position and operating position, works as the wedge is located during the initial position, the clutch spare with back handle meshing works as the wedge is located during the operating position, the wedge is inserted and is located the clutch spare with between the back handle, the wedge makes the clutch spare with back handle separation.

2. The lock according to claim 1,

the lock also comprises a lock tongue transmission part, and the lock tongue is fixedly connected with the lock tongue transmission part;

the lock cylinder is in transmission connection with the lock bolt transmission part, and the rear handle is in transmission connection with the lock bolt transmission part; the lock core rotates and can pass through the spring bolt driving medium drives the spring bolt removes, back handle rotates and can pass through the spring bolt driving medium drives the spring bolt removes, so that the spring bolt stretches out or returns the lock shell.

3. The lockset of claim 2 wherein said rear handle includes a first tooth ring secured to said rear handle and a rear handle;

the lock further comprises a first gear transmission mechanism, and the rear handle is in transmission connection with the bolt transmission part through the first gear transmission mechanism;

the first gear transmission mechanism comprises a first gear, a second gear, a third gear and a second fluted disc, the first gear and the second gear are rotatably arranged in the lock shell, and the first fluted disc, the first gear, the second gear and the third gear are meshed in sequence;

the third gear is sleeved on the connecting shaft of the second fluted disc, the spring bolt transmission piece is rotatably connected to the second fluted disc, and the third gear can drive the second fluted disc to rotate after rotating for a preset angle so as to drive the spring bolt to move along the direction of returning the lock shell.

4. The latch according to claim 3, wherein the first gear drive further comprises a third cog, the third cog being rotatably coupled to the deadbolt drive, the third cog being engaged with the second cog;

the lock core is provided with a shifting block, and the lock core can rotate to drive the lock tongue to move by pushing the third fluted disc to rotate relative to the lock tongue driving part through the shifting block.

5. The lock according to claim 4, wherein the first gear transmission mechanism further comprises a first elastic reset member, the third fluted disc is in transmission connection with the bolt transmission member through the first elastic reset member, and the rotation of the lock cylinder can push the third fluted disc to overcome the elastic force of the first elastic reset member to rotate relative to the bolt transmission member through the shifting block, so as to drive the bolt to move in the direction of retracting the lock case.

6. The lockset of claim 1 wherein said clutch member is circumferentially locked with respect to said front handle, said free setting mechanism being configured to drive said clutch member toward and away from said rear handle to engage and disengage said clutch member with said rear handle; when the clutch piece is separated from the rear handle, the front handle can idle relative to the rear handle;

when the separation and reunion piece with back handle meshing, preceding handle can pass through the separation and reunion piece drives back handle rotates.

7. The lock according to claim 6, wherein said walk-free setting mechanism further comprises a walk-free button movably disposed at a rear side of said lock case;

the free key action can drive the wedge block to move from the initial position to the working position.

8. The lock according to claim 7, characterized in that said wedge is provided with a protrusion, said rear handle being provided with a recess for cooperating with said protrusion;

when the wedge block is located at the initial position and the concave part is aligned with the convex part, the free key action can drive the wedge block to act so that the convex part is inserted into the concave part, and therefore the wedge block is located at the working position;

when the wedge block is located at the working position, the rear handle rotates to enable the concave part and the convex part to be staggered so that the convex part exits from the concave part, and therefore the wedge block is located at the initial position.

9. The lock according to claim 7, wherein said free setting mechanism further comprises a first resilient member, one end of said first resilient member being fixed relative to said lock housing and the other end of said first resilient member being fixed relative to said wedge;

the wedge block can move from the initial position to the working position against the elastic force of a first elastic piece, and the wedge block can be kept at the working position by the first elastic piece under the action of the elastic force.

10. The lock according to claim 1, characterized in that it further comprises a blocking pin and a second elastic return, said blocking pin being connected inside said lock case by said second elastic return, said blocking pin having a release position and a locking position;

when the locking pin is in the releasing position, the locking pin prevents the spring bolt from moving in the direction of retreating into the lock shell, and when the locking pin is in the locking position, the locking pin allows the spring bolt to move in the direction of retreating into the lock shell;

when the locking pin is in the release position, the lock cylinder rotates to overcome the elastic force of the second elastic reset piece to stir the locking pin to rotate, so that the locking pin is in the locking position.

11. The lock according to claim 10, wherein a shifting block is arranged on the lock core;

when the locking pin is located at the releasing position, the lock cylinder rotates to overcome the elastic force of the second elastic reset piece, and the lock pin is stirred to rotate through the shifting block, so that the locking pin is located at the locking position.