CN212927381U

CN212927381U - Oblique tongue mechanism of lock body and lock body

Info

Publication number: CN212927381U
Application number: CN202021553508.1U
Authority: CN
Inventors: 肖梓一
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-09
Anticipated expiration: 2030-07-30

Abstract

The application discloses oblique tongue mechanism and lock body of lock body, wherein, oblique tongue mechanism includes: the lock tongue assembly comprises a first connecting block and a lock tongue, and the first connecting block is provided with a first matching part; a bolt assembly reset piece; a locking plate having a second mating portion and a third mating portion; the locking plate resetting piece is used for being matched with the locking plate; the inclined spring bolt assembly comprises a second connecting block and an inclined spring bolt, the second connecting block is provided with a fourth matching part, and the fourth matching part is used for being matched with the third matching part, so that when the inclined spring bolt extends out of the lock shell, the fourth matching part can interact with the third matching part, and the locking plate is positioned at an unlocking working position; the oblique spring bolt piece that resets for with oblique spring bolt subassembly cooperation. The utility model provides an oblique spring bolt mechanism, even if the oblique spring bolt subassembly is pressed to mistake under the state of opening the door, after the hand release, through the effect that the oblique spring bolt resets, oblique spring bolt subassembly can reset, drives the lockplate simultaneously and resumes to unblock work position, is not afraid of the maloperation consequently.

Description

Oblique tongue mechanism of lock body and lock body

Technical Field

The utility model relates to a lock body field, concretely relates to oblique tongue mechanism and lock body of lock body.

Background

Patent document CN105113856A discloses a latch mechanism of a mortise lock, comprising: a latch bolt assembly; a latch bolt return spring; a trigger tongue assembly; a trigger tongue return spring; the trigger is arranged on the lock shell in a sliding manner; a trigger return spring; the latch bolt component is provided with a latch bolt limiting surface, and the trigger is provided with a first matching part matched with the latch bolt limiting surface; when the trigger is pressed to the trigger return spring, the first matching part is separated from the inclined tongue limiting surface; the trigger tongue assembly is provided with a projection, and the trigger is provided with a second matching part extending between the tongue end of the trigger tongue assembly and the projection.

The latch mechanism described above suffers from the following drawbacks: when the door is opened, the trigger tongue is pressed carelessly, so that the trigger tongue component is pressed into the lock shell, the convex block is separated from the second matching part, meanwhile, the oblique tongue component automatically extends out of the lock shell under the action of the oblique tongue reset spring, finally, the trigger is reset, the first matching part and the oblique tongue limiting surface are formed, and the oblique tongue component is locked. After the trigger tongue is touched by mistake, the oblique tongue assembly is locked and can not be normally closed, and the door can be normally closed only after the oblique tongue assembly is unlocked again.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, provide oblique tongue mechanism and lock body of lock body.

The utility model adopts the following technical scheme:

a skew bolt mechanism of a lock body, the lock body including a lock housing, the skew bolt mechanism comprising:

the lock bolt assembly is arranged on the lock shell in a sliding mode and comprises a first connecting block and a lock bolt rotatably arranged on the first connecting block, and a first matching part is arranged on the first connecting block;

the spring bolt assembly resetting piece is arranged on the lock shell and is used for being matched with the spring bolt assembly, and when the spring bolt assembly is not subjected to external force, a spring bolt of the spring bolt assembly penetrates out of the lock shell;

the locking plate is arranged on the lock shell in a sliding mode and provided with a second matching portion and a third matching portion, the locking plate is provided with a locking working position and an unlocking working position, when the locking plate is located at the locking working position, the spring bolt penetrates out of the lock shell, the second matching portion is matched with the first matching portion, the locking plate can limit the spring bolt assembly to move towards the inner side of the lock shell, when the limiting piece is located at the unlocking working position, the second matching portion is separated from the first matching portion, and the spring bolt assembly can move towards the inner side of the lock shell;

the locking plate resetting piece is arranged on the lock shell and is used for being matched with the locking plate, so that the second matching part of the locking plate has a movement trend moving towards one side of the first matching part;

the inclined spring bolt assembly is arranged on the lock shell in a sliding mode and comprises a second connecting block and an inclined spring bolt rotatably installed on the second connecting block, the second connecting block is provided with a fourth matching portion, and the fourth matching portion is used for being matched with the third matching portion, so that when the inclined spring bolt extends out of the lock shell, the fourth matching portion can interact with the third matching portion, and the locking plate is located at an unlocking working position;

the oblique spring bolt reset piece is arranged on the lock shell and is used for being matched with the oblique spring bolt assembly to enable an oblique spring bolt of the oblique spring bolt assembly to penetrate out of the lock shell.

The application adopts the working principle of the latch bolt mechanism: when the door is closed, the inclined spring bolt assembly is pressed into the lock shell, the fourth matching part of the inclined spring bolt assembly cannot drive the third matching part to move, the spring bolt of the spring bolt assembly penetrates out of the lock shell under the action of a spring bolt assembly resetting piece, the second matching part is matched with the first matching part under the action of a locking plate resetting piece, the locking plate is located at a locking working position, and the spring bolt assembly cannot move towards the inner side of the lock shell; when the door is opened, the locking plate is driven to move, the locking working position is switched to the unlocking working position, after the door is opened, the inclined spring bolt of the inclined spring bolt assembly extends out of the lock shell under the action of the inclined spring bolt resetting piece, and meanwhile, the fourth matching part is matched with the third matching part to enable the locking plate to be located at the unlocking working position.

The application of oblique spring bolt mechanism, even if the oblique spring bolt subassembly is pressed to the mistake under the state of opening the door (make oblique spring bolt withdrawal lock shell subassembly), after the hand release, through the effect that the oblique spring bolt resets, oblique spring bolt subassembly can reset, drives the lockplate simultaneously and resumes to unblock work position, consequently is not afraid of the maloperation.

The latch bolt mechanism is simple in locking and unlocking process and good in reliability and stability.

In one embodiment of the present invention, the first engaging portion is a groove, and the second engaging portion is a protrusion or a roller rotatably mounted on the locking plate;

or, the first matching part is a convex block or a roller rotatably arranged on the first connecting block, and the second matching part is a groove.

In one embodiment of the present invention, the lock tongue is a two-way lock tongue.

In one embodiment of the present invention, the spring bolt assembly reset element is a spring, a spring plate, a tension spring or a torsion spring; the locking plate resetting piece is a spring, an elastic sheet, a tension spring or a torsion spring; the inclined bolt resetting piece is a spring, an elastic sheet, a tension spring or a torsion spring.

In one embodiment of the present invention, the moving direction of the locking plate is perpendicular to the moving direction of the locking bolt assembly.

In one embodiment of the present invention, the third engaging portion is a driving surface, and the fourth engaging portion is a driving block.

In one embodiment of the present invention, the driving surface is a slant surface or a curved surface.

In one embodiment of the present invention, the locking plate further has an unlocking portion, and the unlocking portion is used for cooperating with other structures of the lock body when the locking plate is located at the locking working position.

In one embodiment of the present invention, the locking plate further has a first pressed portion and a second pressed portion, the first pressed portion and the second pressed portion are used for cooperating with other structures of the lock body, and the locking plate is switched from the locking position to the unlocking position after being stressed.

The application also discloses a lock body, including the lock shell, install the above on the lock shell the latch bolt mechanism.

The utility model has the advantages that: the application of oblique spring bolt mechanism, even if the oblique spring bolt subassembly is pressed to the mistake under the state of opening the door (make oblique spring bolt withdrawal lock shell subassembly), after the hand release, through the effect that the oblique spring bolt resets, oblique spring bolt subassembly can reset, drives the lockplate simultaneously and resumes to unblock work position, consequently is not afraid of the maloperation.

Description of the drawings:

figure 1 is a schematic view of the lock body in a closed door state;

FIG. 2 is a schematic view of the lock body with the main drive member rotated and the door opened;

FIG. 3 is a schematic view of the lock body in the open state after the main transmission member is reset;

FIG. 4 is a schematic view of the lock body with the main bolt omitted in the open state;

figure 5 is a partial exploded view of the lock body;

FIG. 6 is a schematic view of a clutch mechanism;

FIG. 7 is a front view of the clutch mechanism;

FIG. 8 is a sectional view A-A of FIG. 7;

FIG. 9 is an exploded view of the clutch mechanism;

FIG. 10 is a schematic view of the construction of the primary drive member;

FIG. 11 is a schematic view of another angle of the primary drive member;

FIG. 12 is a front view of the primary drive;

FIG. 13 is a cross-sectional view B-B of FIG. 12;

FIG. 14 is a schematic structural view of another clutch mechanism;

fig. 15 is a partial exploded view of another clutch mechanism.

The figures are numbered:

1. a lock case; 2. a main bolt mechanism; 3. a clutch mechanism; 4. a latch mechanism; 5. a main bolt; 6. a lock tongue portion; 7. a force receiving portion; 8. a first driving member; 9. a first positioning portion; 10. a drive section; 11. a second driving member; 12. an elastic element; 13. a positioning member; 14. a second positioning portion; 15. the positioning piece is an elastic resetting piece; 16. positioning a groove; 17. a first tooth; 18. a second tooth; 19. a driving strap; 20. a mechanical lock; 21. shifting blocks; 22. a first part; 23. a second section; 24. a slide plate; 25. a latch bolt assembly; 26. a first connection block; 27. a latch bolt; 28. a first mating portion; 29. a bolt assembly reset piece; 30. a locking plate; 31. a second mating portion; 32. a third mating portion; 33. a lockplate reset; 34. an inclined bolt assembly; 35. a second connecting block; 36. an inclined bolt; 37. a fourth mating portion; 38. an inclined bolt resetting piece; 39. a first pressure receiving portion; 40. a second pressure receiving portion; 41. an unlocking portion; 42. a main transmission member; 43. a clutch block; 44. a first positioning structure; 45. a connecting member; 46. a clutch member; 47. a second positioning mechanism; 48. an elastic member; 49. mounting holes; 50. a limiting part; 51. a threaded hole; 52. passing through the aperture; 53. a body; 54. a control unit; 55. mounting grooves; 56. an anti-drop part; 58. a chute; 59. a through hole; 60. a limiting groove; 61. a clutch motor assembly; 62. a clamping groove.

The specific implementation mode is as follows:

the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 5, a lock body includes a lock case 1, and a main bolt mechanism 2, a clutch mechanism 3 and a latch bolt mechanism 4 are installed on the lock case 1.

As shown in fig. 1, the main bolt mechanism 2 includes:

the main bolt 5 is arranged on the lock shell 1 in a sliding mode, and the main bolt 5 is provided with a bolt locking part 6 and a stress part 7;

the first driving piece 8 is arranged on the lock shell 1 in a sliding mode, the first driving piece 8 is provided with a first positioning portion 9 and a driving portion 10 matched with the stress portion 7, the bolt locking portion 6 of the main bolt 5 can be controlled to penetrate out of or retract into the lock shell 1 through movement of the first driving piece 8, the first driving piece 8 is provided with a first working position and a second working position, the bolt locking portion 6 penetrates out of the lock shell 1 in the first working position, and the bolt locking portion 6 retracts into the lock shell 1 in the second working position;

the second driving part 11 is movably arranged on the lock shell 1, and the second driving part 11 is matched with the first driving part 8 and used for driving the first driving part 8 to move;

an elastic element 12, cooperating with the first driving element 8 or/and the second driving element 11, for moving the first driving element 8 from the second working position to the first working position when the first driving element 8 is not positioned;

the positioning piece 13 is movably arranged on the lock shell 1, and the positioning piece 13 is provided with a second positioning part 14 matched with the first positioning part 9;

and the positioning piece elastic resetting piece 15 is arranged on the lock shell 1, is matched with the positioning piece 13 and is used for matching the second positioning part 14 of the positioning piece 13 with the first positioning part 9 to position the first driving piece 8 when the first driving piece 8 is at the first working position.

The working principle of the main bolt mechanism 2 is as follows: in the door opening state (as shown in fig. 2, 3 and 4), the first driving member 8 is located at the second working position, the second positioning portion 14 of the positioning member 13 cooperates with the first positioning portion 9 to position the first driving member 8, and the bolt portion 6 retracts into the lock case 1; when the door is closed, the positioning element 13 is only required to be triggered to separate the second positioning portion 14 from the first positioning portion 9, and at this time, under the action of the elastic element 12, the first driving element 8 can be moved from the second working position to the first working position, that is, under the action of the first driving element 8, the bolt portion 6 of the main bolt 5 penetrates out of the lock case 1, as shown in fig. 1; when the door needs to be opened, the first driving part 8 is driven to move or the second driving part 11 is driven to move, so that the first driving part 8 moves to the second working position, at the moment, the lock tongue part 6 retracts into the lock shell 1, and under the action of the positioning part elastic resetting part 15, the second positioning part 14 of the positioning part 13 is matched with the first positioning part 9, so that the first driving part 8 is positioned.

The main spring bolt mechanism 2 of this embodiment need not order about main spring bolt 5 through handle and complicated transmission structure and stretch out, and this application just enables main spring bolt 5 and wears out lock shell 1, whole simple structure reliably automatically through elastic element 12 after setting element 13 unblock.

When applying the lock body with the main spring bolt mechanism 2 of this application, the lock body can design multiple structure in fact and drive setting element 13 activity to unblock setting element 13, but this application main spring bolt mechanism 2's expansibility is stronger.

In practical use, the first positioning portion 9 and the second positioning portion 14 may be two protrusions or hooks, one protrusion or one groove, or other structures capable of positioning each other.

In practical use, the elastic reset element 15 of the positioning element may be a torsion spring, a spring plate, a tension spring, or the like.

As shown in fig. 1, in the present embodiment, the force-receiving portion 7 is a chute, and the driving portion 10 is a protrusion extending into the chute or a roller extending into the chute. In other embodiments, the driving portion 10 may be a chute, and the force-receiving portion 7 is a protrusion extending into the chute or a roller extending into the chute.

As shown in fig. 1, in the present embodiment, the chute has positioning grooves 16 at both ends. The positioning slot 16 is provided to facilitate the main bolt 5 to be maintained in a corresponding state.

In the present embodiment, the second driving member 11 is rotatably mounted on the lock housing 1, as shown in fig. 1 and 4.

As shown in fig. 4, in the present embodiment, the first driving member 8 has a first tooth 17, the second driving member 11 has a second tooth 18, and the first tooth 17 is engaged with the second tooth 18. Through the meshing of first tooth 17 and second tooth 18, can convert the rotation of second driving piece 11 into the linear motion of first driving piece 8, finally through the cooperation of atress portion 7 and drive division 10, realize driving main spring bolt 5 and remove.

As shown in fig. 1 and 4, in this embodiment, the main bolt mechanism 2 further includes a driving strap 19 rotatably installed on the lock case 1, the driving strap 19 is used for cooperating with the clutch mechanism 3 of the lock body, and the second driving member 11 can be driven to rotate by the rotation of the driving strap 19, so that the first driving member 8 is switched from the first working position to the second working position.

As shown in fig. 1 and 4, in this embodiment, the elastic member 12 is a torsion spring, which cooperates with the second driving member. In other embodiments, the elastic element 12 may also be a spring, a leaf spring, a tension spring, or the like. In addition, the elastic element 12 may be engaged with only the first driving element in actual use.

In order to provide a sufficient spring force, in other embodiments the spring element 12 comprises a first element cooperating with the second driver 11 and a second element cooperating with the first driver 8; the first element is a torsion spring, a shrapnel or a tension spring, and the second element is a torsion spring, a shrapnel or a tension spring.

When in actual use, the positioning piece 13 is rotatably or slidably arranged on the lock shell 1; the elastic element 12 is a torsion spring, a spring plate or a tension spring. In this embodiment, the positioning member 13 is rotatably mounted on the lock case 1.

As shown in fig. 6 to 13, the clutch mechanism 3 of the present embodiment includes:

a main transmission member 42 rotatably mounted on the lock case 1;

two clutch blocks 43 respectively rotatably mounted on both sides of the main transmission member 42, the clutch blocks 43 having a first positioning structure 44;

a connecting member 45 for fixing any one of the clutch plates 43 and the main transmission member 42 in a circumferential direction;

a clutch member 46 movably disposed on the main transmission member 42, the clutch member 46 having two second positioning mechanisms 47 for engaging with the first positioning mechanisms 44 of the two clutch blocks 43, respectively, and when the second positioning mechanisms 47 are engaged with the first positioning mechanisms 44, the main transmission member 42 and the two clutch blocks 43 are relatively fixed in the circumferential direction;

and the elastic piece 48 is arranged between the main transmission piece 42 and the clutch piece 46 and is used for enabling the second positioning mechanism 47 to be separated from the first positioning mechanism when the clutch piece 46 is not subjected to external force.

When the clutch mechanism 3 is used, the connecting piece 45 can be adjusted to be matched with different clutch blocks 43 as required to realize the exchange of the lock body with the left door and the lock body with the right door, so that the lock body has better universality. For example, the connecting piece 45 is matched with the first clutch piece 43 in the initial state, the lock body is arranged on a left-hand door, when the lock body needs to be arranged on a right-hand door, the connecting piece 45 is only required to be separated from the first clutch piece 43, and the connecting piece 45 is matched with the second clutch piece 43, so that the exchange can be realized quickly and conveniently. Namely, the same lock body can be suitable for left-hand opening doors and right-hand opening doors.

The clutch mechanism 3 is simple in structure. In practice, the elastic member 48 of the present application may be a spring or a leaf spring.

As shown in fig. 1 and 9, in the present embodiment, the main transmission member 42 has a mounting hole 49, and the clutch piece 43 is rotatably mounted on the mounting hole 49.

As shown in fig. 9 and 10, in the present embodiment, the middle of the mounting hole 49 has a limiting portion 50, the connecting member 45 is a screw, the limiting portion 50 has a threaded hole 51 for engaging with the screw, and the clutch block 43 has a through hole 52 for passing the screw therethrough.

The middle portion as referred to in this application is not limited to the middle. Reliable fixation can be achieved by the cooperation of the screw and the threaded hole 51.

In other embodiments, the position-limiting portion 50 has a positioning hole, the clutch block 43 has a through hole 52 for the connection element 45 to pass through, and one end of the connection element 45 passes through the through hole 52 and then extends into the positioning hole. Through the cooperation of locating hole and connecting piece 45, can realize reliable location. Further, the connecting member 45 has a threaded region, and has an internal thread through the hole 52, the threaded region being threadedly engaged with the internal thread.

As shown in fig. 8 and 9, in the present embodiment, the clutch member 46 includes a body 53 and a control portion 54 located on one side of the body 53 and extending outward, two second positioning structures are located on one side of the body 53 away from the control portion 54, the main transmission member 42 has a mounting groove 55, the clutch member 46 is slidably disposed in the mounting groove 55, one end of the elastic member 48 is engaged with the mounting groove 55, and the other end is engaged with the body 53 for making the clutch member 46 have a movement tendency to move outward;

the clutch mechanism 3 further includes a retaining portion 56 fixedly or detachably connected to the main transmission member 42, and the retaining portion 56 is configured to cooperate with the body 53 or the control portion 54 to prevent the clutch member 46 from being disengaged from the mounting groove 55.

The term "the retaining portion 56 is fixedly connected to the main transmission member 42" means that the retaining portion 56 is integrally connected to the main transmission member 42 or welded to the main transmission member 42.

As shown in fig. 1 and 9, in the present embodiment, the anti-falling part 56 is detachably mounted on the main transmission member 42, the anti-falling part 56 is a sealing piece, the main transmission member 42 has a sliding slot 58 matching with the sealing piece, and the sealing piece is used for being inserted into the sliding slot 58.

In other embodiments, as shown in fig. 14 and 15, the anti-slip part 56 may be an elastic ring, and when the anti-slip part 56 is an elastic ring, the main driving member 42 has a slot 62 for the elastic ring to be inserted into. The elastic clamp belongs to the elastic ring.

As shown in fig. 9, 10 and 11, in the present embodiment, the main transmission member 42 has a through hole 59 for the second positioning structure to pass through; the bottom wall of the mounting groove 55 also has a retaining groove 60 for mounting the resilient member 48.

In practice, there are one or more, in this embodiment 2, connecting members 45.

As shown in fig. 8 and 9, in the present embodiment, the axes of the two clutch pieces 43 coincide; the first locating features 44 are recesses and the second locating features are bumps.

As shown in fig. 1, the lock body further includes a clutch motor assembly 61, the clutch motor assembly 61 is used for driving the clutch member to move, so that the main transmission member and the two clutch blocks are both relatively fixed in the circumferential direction, that is, the clutch motor assembly can be matched with the control part to press the clutch member.

As shown in fig. 1 to 5, the latch mechanism 4 of the present embodiment includes:

the bolt assembly 25 is arranged on the lock shell 1 in a sliding mode, the bolt assembly 25 comprises a first connecting block 26 and a bolt 27 rotatably installed on the first connecting block 26, and a first matching part 28 is arranged on the first connecting block 26;

the bolt assembly resetting piece 29 is arranged on the lock shell 1 and is used for being matched with the bolt assembly 25, and when the bolt assembly 25 is not subjected to external force, the bolt 27 of the bolt assembly 25 penetrates out of the lock shell 1;

the locking plate 30 is arranged on the lock shell 1 in a sliding mode, the locking plate 30 is provided with a second matching portion 31 and a third matching portion 32, the locking plate 30 is provided with a locking working position and an unlocking working position, when the locking plate 30 is located at the locking working position, the bolt 27 penetrates out of the lock shell 1, the second matching portion 31 is matched with the first matching portion 28, the locking plate 30 can limit the bolt assembly 25 to move towards the inner side of the lock shell 1, when the limiting piece is located at the unlocking working position, the second matching portion 31 is separated from the first matching portion 28, and the bolt assembly 25 can move towards the inner side of the lock shell 1;

a latching plate restoring member 33 mounted on the lock case 1 for cooperating with the latching plate 30 to make the second cooperating portion 31 of the latching plate 30 have a tendency to move toward the first cooperating portion 28 side;

the inclined bolt assembly 34 is slidably arranged on the lock shell 1, the inclined bolt assembly 34 comprises a second connecting block 35 and an inclined bolt 36 rotatably arranged on the second connecting block 35, the second connecting block 35 is provided with a fourth matching portion 37, and the fourth matching portion 37 is used for matching with the third matching portion 32, so that when the inclined bolt 36 extends out of the lock shell 1, the fourth matching portion 37 can interact with the third matching portion 32, and the locking plate 30 is located at an unlocking working position;

and the inclined bolt resetting piece 38 is arranged on the lock shell 1 and is used for being matched with the inclined bolt assembly 34 so that the inclined bolt of the inclined bolt assembly 34 penetrates out of the lock shell 1.

The application adopts the working principle of the latch bolt mechanism 4: when the door is closed, the inclined bolt assembly 34 is pressed into the lock shell 1, at this time, the fourth matching part 37 of the inclined bolt assembly 34 does not drive the third matching part 32 to move, under the action of the bolt assembly resetting piece 29, the bolt 27 of the bolt assembly 25 penetrates out of the lock shell 1, under the action of the locking plate resetting piece 33, the second matching part 31 is matched with the first matching part 28, the locking plate 30 is in a locking working position, and at this time, the bolt assembly 25 cannot move towards the inner side of the lock shell 1; when the door is opened, the locking plate 30 is driven to move and is switched from the locking working position to the unlocking working position, after the door is opened, under the action of the inclined bolt resetting piece 38, the inclined bolt 36 of the inclined bolt assembly 34 extends out of the lock shell 1, and meanwhile, the fourth matching part 37 is matched with the third matching part 32, so that the locking plate 30 is in the unlocking working position.

The latch bolt mechanism 4 of the application, even if the latch bolt assembly 34 is pressed by mistake (make the latch bolt 36 retract into the lock shell 1 assembly) under the state of opening the door, after the hand release, through the effect of the latch bolt piece 38 that resets to one side, the latch bolt assembly 34 can reset, drives the locking plate 30 to resume to the unblock work position simultaneously, therefore is not afraid of the maloperation.

The latch bolt mechanism 4 is simple in locking and unlocking process and good in reliability and stability.

In the present embodiment, the first engaging portion 28 is a groove, and the second engaging portion 31 is a bump or a roller rotatably mounted on the locking plate 30. In other embodiments, the first engaging portion 28 is a protrusion or a roller rotatably mounted on the first connecting block 26, and the second engaging portion 31 is a groove.

In the present embodiment, the latch 27 is a two-way latch 27.

In practical use, the bolt assembly reset element 29 may be a spring, a spring plate, a tension spring or a torsion spring; the locking plate resetting piece 33 can be a spring, a spring plate, a tension spring or a torsion spring; the latch bolt return 38 may be a spring, a spring plate, a tension spring, or a torsion spring.

In the present embodiment, the moving direction of the locking plate 30 is perpendicular to the moving direction of the latch bolt assembly 25.

As shown in fig. 5, the third engaging portion 32 is a driving surface, and the fourth engaging portion 37 is a driving block.

As shown in fig. 5, in the present embodiment, the driving surface is a slope or a curved surface.

As shown in fig. 1, in the present embodiment, the main transmission member 42 of the clutch mechanism 3 is engaged with the transmission plate 19, the main transmission member 42 can drive the transmission plate 19 to rotate, and the second driving member 11 can be driven to rotate by the rotation of the transmission plate 19, so that the first driving member 8 is switched from the first working position to the second working position.

The working principle of the lock body is as follows: when the door is opened, the first driving member 8 is located at the second working position, the second positioning portion 14 of the positioning member 13 is matched with the first positioning portion 9 to position the first driving member 8, the bolt portion 6 retracts into the lock case 1, when the door is closed, only the positioning member 13 needs to be triggered to separate the second positioning portion 14 from the first positioning portion 9, at this time, under the action of the elastic element 12, the first driving member 8 can be moved from the second working position to the first working position, that is, under the action of the first driving member 8, the bolt portion 6 of the main bolt 5 penetrates out of the lock case 1, when the door is opened, the driving piece 19 is driven to rotate by the main driving member 42 of the clutch mechanism 3, the driving piece 19 drives the second driving member 11, the second driving member 11 drives the first driving member 8 to move to the second working position, at this time, the bolt portion 6 retracts into the lock case 1, under the action of the elastic reset member 15, the second positioning member 14 of the positioning member 13 is matched with the first positioning portion, the first drive member 8 is positioned.

As shown in fig. 1 and 4, the primary drive member 42 has a first portion 22 and a second portion 23, the first portion 22 being adapted to engage the drive strap 19,

as shown in fig. 1 and 4, the locking plate 30 further has an unlocking portion 41, and the unlocking portion 41 is configured to cooperate with the positioning member 13 when the locking plate 30 is in the locking working position, so as to overcome the elastic force of the elastic resetting member 15 of the positioning member and disengage the second positioning portion 14 from the first positioning portion 9; the locking plate 30 is also provided with a first pressure receiving part 39, the first pressure receiving part 39 is used for being matched with the second part 23 of the main transmission piece 42, and the locking plate 30 can be switched from the locking working position to the unlocking working position through the rotation of the main transmission piece 42;

as shown in fig. 1, in the present embodiment, the lock body further includes a mechanical lock 20 mounted on the lock case 1 and a sliding plate 24 slidably mounted on the main bolt 5 or the lock case 1; the locking plate 30 is also provided with a second pressure receiving part 40; the dial 21 of the mechanical lock 20 is used to cooperate with the first driving element 8 and the sliding plate 24 to switch the first driving element 8 from the first operating position to the second operating position, and to switch the locking plate 30 from the locking operating position to the unlocking operating position by driving the second pressure receiving portion 40 by the sliding plate 24.

When an electronic fault occurs, the mechanical lock 20 is inserted into the key to drive the shifting block 21 to rotate, so that the first driving piece 8 is switched from the first working position to the second working position, and the locking plate 30 is switched from the locking working position to the unlocking working position, thereby realizing the door opening operation.

The above only is the preferred embodiment of the present invention, not therefore the limit the patent protection scope of the present invention, all applications the equivalent structure transformation made by the contents of the specification and the drawings of the present invention is directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. A deadbolt mechanism of a lock body, the lock body including a lock housing, the deadbolt mechanism comprising:

2. The latch mechanism of a lock body according to claim 1, wherein said first engagement portion is a recess and said second engagement portion is a projection or a roller rotatably mounted on the locking plate;

3. The latch mechanism of claim 1, wherein said locking bolt is a two-way locking bolt.

4. The latch mechanism of claim 1, wherein the bolt assembly reset element is a spring, a spring plate, a tension spring, or a torsion spring; the locking plate resetting piece is a spring, an elastic sheet, a tension spring or a torsion spring; the inclined bolt resetting piece is a spring, an elastic sheet, a tension spring or a torsion spring.

5. The latch mechanism of a lock according to claim 1, wherein the direction of movement of said locking plate is perpendicular to the direction of movement of said deadbolt assembly.

6. The latch mechanism of a lock body of claim 1, wherein said third mating portion is a drive surface and said fourth mating portion is a drive block.

7. The latch mechanism of claim 6, wherein said drive surface is beveled or curved.

8. The latch mechanism of a lock according to claim 1, wherein said locking plate further comprises an unlocking portion for engaging with other structure of the lock when the locking plate is in the locking position.

9. The latch mechanism of claim 1, wherein the locking plate further comprises a first pressed portion and a second pressed portion, the first pressed portion and the second pressed portion are configured to cooperate with other structures of the lock body to switch the locking plate from the locking position to the unlocking position after a force is applied to the locking plate.

10. A lock body including a housing having a latch mechanism according to any one of claims 1 to 9 mounted thereon.