CN114412280B

CN114412280B - Lock body linkage structure and lock body

Info

Publication number: CN114412280B
Application number: CN202111533402.4A
Authority: CN
Inventors: 谢增荣
Original assignee: Guangdong Mingmen Locks Industry Co Ltd
Current assignee: Guangdong Mingmen Locks Industry Co Ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2023-04-07
Anticipated expiration: 2041-12-15
Also published as: CN114412280A

Abstract

The invention relates to the technical field of locks, and discloses a lock body linkage structure which comprises a dial peach and a linkage plate; the shifting peach comprises a shifting peach body and a limiting groove arranged on the side of the shifting peach body, wherein a square core hole is formed in the shifting peach body, and the distance between the middle part of the limiting groove and the rotation center of the shifting peach is larger than the distance between the two ends of the limiting groove and the rotation center of the shifting peach; the linkage plate comprises a first support arm and a second support arm which are intersected, a rotating shaft or a shaft hole is arranged at the intersection of the first support arm and the second support arm, a sliding block assembled in the limiting groove in a sliding mode is arranged on the first support arm, and the initial position of the first sliding block is located in the middle of the limiting groove. When this lock body interlock structure was used on the lock body, can connect handle subassembly and spring bolt subassembly, all can make the spring bolt subassembly remove according to predetermined mode when forward or reverse rotation handle subassembly to realize closing lock or unblock.

Description

Lock body linkage structure and lock body

Technical Field

The invention relates to the technical field of locks, in particular to a lock body linkage structure and a lock body.

Background

The common lock structure includes a handle assembly and a bolt assembly, which are connected via a linkage structure, such as a thumb rest. Be equipped with on the handle subassembly can with the synchronous pivoted square core of thumb wheel, when rotating the handle subassembly, the thumb wheel rotates thereupon, and the periphery of thumb wheel drives the spring bolt subassembly simultaneously and removes, makes the spring bolt stretch out to the lock body outside or withdraw from the lock body outside, realizes closing lock or unblock. For adapting to different users' demand, the handle in the handle subassembly has unidirectional rotation handle and two-way rotatory handle, and square core also divide into two kinds of structural style of unidirectional rotation and two-way rotation, and correspondingly, the rotation direction that the thumb wheel needs the adaptation square core is in order to realize closing lock or unblock, consequently leads to the thumb wheel also to need two kinds of structural style for the cost of lock body when the preparation promotes.

Disclosure of Invention

The present invention is made to solve the above-mentioned technical problems, and an object of the present invention is to provide a lock body linkage structure and a lock body including the same, wherein the lock body linkage structure is used to connect a square core and a bolt assembly in a handle assembly, and the bolt assembly can move in a predetermined manner to achieve locking or unlocking regardless of forward/reverse rotation of the square core.

In order to achieve the above object, in a first aspect, the present invention provides a lock body linkage structure, including a dial peach and a linkage plate; the shifting peach comprises a shifting peach body and a limiting groove arranged on the side of the shifting peach body, wherein a square core hole is formed in the shifting peach body, and the distance between the middle part of the limiting groove and the rotation center of the shifting peach is larger than the distance between the two ends of the limiting groove and the rotation center of the shifting peach; the linkage plate comprises a first support arm and a second support arm which are intersected, a rotating shaft or a shaft hole is arranged at the intersection of the first support arm and the second support arm, a first sliding block which is assembled in the limiting groove in a sliding mode is arranged on the first support arm, and the initial position of the first sliding block is located in the middle of the limiting groove.

Preferably, the method further comprises the following steps: and one end of the elastic piece is connected with the linkage plate, and applies acting force to the linkage plate to enable the first sliding block to be abutted against the inner side wall of the limiting groove far away from the peach poking body.

Preferably, the crossing department of first support arm and second support arm is equipped with the rotation axis, the elastic component is for setting up epaxial torsional spring rotates, the torsional spring is in compression state, the one end of torsional spring is fixed, and the other end is connected on the interlock board.

Preferably, the elastic member is a spring in a compressed state or a stretched state, and one end of the spring is connected with the linkage plate.

In order to achieve the above object, in a second aspect, the present invention provides a lock body, including: a housing; the spring bolt assembly comprises a latch bolt, a connecting rod, a first return spring and a fixing frame, wherein the latch bolt is arranged at the end part of the connecting rod, the first return spring is sleeved on the connecting rod, one end of the first return spring is connected with the latch bolt, the other end of the first return spring is connected with the fixing frame, the connecting rod is arranged in the fixing frame in a penetrating way, and the fixing frame is fixedly arranged in the shell; according to the lock body linkage structure, the second support arm is connected with the connecting rod, and the linkage plate and the peach-poking body are rotatably connected to the shell; handle subassembly, one end is equipped with and inserts square core in the square core hole.

Preferably, a baffle is arranged on the connecting rod, and the second support arm abuts against the baffle; when the square core is rotated, the first sliding block slides from the middle part of the limiting groove to the end part, the second support arm drives the baffle to move towards one side far away from the latch bolt, and drives the connecting rod to move, so that the latch bolt is retracted into the shell; after the square core is released, the first reset spring pushes the latch bolt to extend out of the shell, and the baffle plate pushes the second support arm to move, so that the first sliding block slides to the middle of the limiting groove.

Preferably, a second sliding block is further arranged at one end, close to the shell, of the shifting peach; and the shell is provided with a sliding groove for the second sliding block to slide.

In order to achieve the above object, in a third aspect, the present invention provides a lock body, including: a housing; the spring bolt assembly comprises a turnover tongue, a second reset spring and a sliding frame, the turnover tongue is arranged in the sliding frame, one end of the second reset spring is connected with the turnover tongue, the other end of the second reset spring is connected with the sliding frame, and the turnover tongue can extend to the outside of the shell under the elastic force of the second reset spring; the lock body linkage structure according to claim 3, wherein the end of the second arm is provided with a turning tongue limiting part penetrating into the sliding frame for limiting the turning action of the turning tongue, and the linkage plate and the shift peach are rotatably connected to the housing; handle subassembly, one end is equipped with and inserts square core in the square core hole.

Preferably, the shell is provided with a torsion spring limiting part; one end of the torsion spring is abutted against the torsion spring limiting part, and the other end of the torsion spring is abutted against the linkage plate; when the square core is rotated, the first sliding block slides from the middle part of the limiting groove to the end part, the limiting part of the turnover tongue moves out of the sliding frame, and the limitation on the turnover tongue is released; after releasing the square core, the torsion spring applies acting force to the linkage plate to enable the first sliding block to slide to the middle of the limiting groove, and meanwhile, the overturning tongue limiting part moves into the sliding frame.

Preferably, a second sliding block is further arranged at one end, close to the shell, of the peach-poking block; and the shell is provided with a sliding groove for the second sliding block to slide.

According to the above description and practice, the lock body linkage structure of the invention arranges the limit groove on the peach-shifting plate, wherein the distance between the middle part of the limit groove and the rotation center of the peach-shifting plate is larger than the distance between the two ends of the limit groove and the rotation center of the peach-shifting plate, one support arm of the linkage plate is slidably assembled in the limit groove, and the other support arm of the linkage plate can move towards the same direction when the peach-shifting plate rotates forwards or reversely. When using on the lock body, the thumb wheel links to each other with the handle subassembly, and another support arm of interlock board is used for controlling the spring bolt subassembly, and forward or reverse rotation handle subassembly this moment, another support arm of interlock board all can only remove to same direction, and the control spring bolt subassembly of being convenient for is accomplished the unblock or is closed the lock. Therefore, the lock body linkage structure is applicable to lock bodies in various switch lock forms, and the production and manufacturing cost of the lock can be reduced.

Drawings

Fig. 1 is a schematic view of a lock body linkage structure according to a first embodiment of the present invention.

Fig. 2 is a schematic view of the front surface of the peach according to the first embodiment of the present invention.

Fig. 3 is a schematic view of the back of a peach according to a first embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a linkage board according to a first embodiment of the invention.

Fig. 5 is a schematic structural diagram of a lock body according to a second embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a lock body according to a third embodiment of the present invention.

The reference numbers in the figures are:

1. the shifting peach comprises a shifting peach body, 11, a shifting peach body, 12, a limiting groove, 13, a square core hole, 14, a second sliding block, 2, a linkage plate, 21, a first supporting arm, 22, a second supporting arm, 23, a shaft hole, 24, a first sliding block, 25, a turnover tongue limiting part, 26, a rotating shaft, 27, a torsion spring, 28, a torsion spring limiting part, 3, a shell, 4, a bolt component, 41, an oblique tongue, 42, a connecting rod, 43, a first return spring, 44, a fixing frame, 45, a baffle plate, 51, a turnover tongue, 52, a second return spring, 53 and a sliding frame.

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings. The exemplary embodiments, however, may be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. In the present disclosure, the terms "include", "arrange", "disposed" and "disposed" are used to mean open-ended inclusion, and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting as to the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Please refer to fig. 1 to 4, in this embodiment, a lock linkage structure is disclosed, which includes a dial 1 and a linkage plate 2, the dial 1 can be connected to a handle assembly of the lock, one end of the linkage plate 2 is connected to the dial 1, the other end is connected to the latch assembly, the dial 1 is rotated by the handle assembly, and the linkage plate 2 controls the movement of the latch assembly to realize the on-off state of the lock.

Wherein, the shifting peach 1 comprises a shifting peach body 11 and a limit groove 12 arranged at the side of the shifting peach body 11. Be equipped with square core hole 13 on thumb wheel body 11 for be connected with the square core in the handle subassembly, realize the synchronous rotation of square core and thumb wheel 1. The limiting groove 12 is a groove-shaped structure with closed periphery, the distance between the middle part of the limiting groove and the rotation center of the peach shift is larger than the distance between the two ends of the limiting groove and the rotation center of the peach shift, and the rotation center of the peach shift is the center of the square core hole 13.

The linkage board 2 includes a first arm 21 and a second arm 22 intersecting with each other. A shaft hole 23 is formed at the intersection of the first support arm 21 and the second support arm 22, and the shaft hole 23 is used for rotatably connecting the linkage plate 2 to the housing of the lock body, for example, the shaft hole 23 is sleeved on the shaft of the housing. In other embodiments, the shaft hole 23 may be replaced by a rotating shaft, and the rotating shaft is directly hinged to the lock body housing to achieve the rotating connection between the linking plate 2 and the housing. The first arm 21 is provided with a first slider 24 slidably fitted in the above-mentioned stopper groove 12, and the initial position of the first slider 24 is located at the middle of the stopper groove 12.

In practical application, the linkage plate 2 is rotatably mounted on the housing of the lock body, and at this time, no matter the thumb wheel 1 is rotated in the forward direction or in the reverse direction, the first slider 24 slides along the limiting groove 12 to the end of the limiting groove 12, and since the linkage plate 2 is hinged on the housing, the first slider 24 gradually approaches the rotation center of the thumb wheel in the process, as shown in fig. 1, in which the first slider 24 moves to the lower side in fig. 1, and correspondingly, the end of the second support arm 22 moves to the right side in fig. 1. In other words, the direction of movement of the end of the second arm 22 is the same whether the drum 1 is rotated in the forward or reverse direction. Therefore, this kind of lock body interlock structure can adapt to not equidirectional pivoted handle subassembly, and applicable on the tool to lock of different modes of unblanking, can reduce the manufacturing cost of tool to lock.

As shown in fig. 2, in this embodiment, one side of the limiting groove 12 close to the peach-shifting body 11 is arc-shaped, two ends are straight side edges, and one side far away from the peach-shifting body 11 is two straight side edges arranged at an obtuse angle, so that the distance between the middle part of the limiting groove 12 and the rotation center of the peach-shifting body is greater than the distance between the two ends and the rotation center of the peach-shifting body. In other embodiments, the limiting groove may be an arc-shaped groove with a curvature radius gradually decreasing from the middle to the two sides, and the distance between the middle of the limiting groove 12 and the rotation center of the peach-shift can be larger than the distance between the two ends of the limiting groove and the rotation center of the peach-shift. Other structural forms which can realize the characteristic that the distance between the middle part of the limiting groove 12 and the rotation center of the peach shift is larger than the distance between the two ends of the limiting groove 12 and the rotation center of the peach shift are not described in detail herein.

In this embodiment, an elastic member is further provided for making the first sliding block 24 abut against the inner sidewall of the limiting groove 12 far away from the peach-plucking body 11, so that when the peach-plucking 1 is rotated, the sidewall of the limiting groove 12 can directly push the first sliding block 24 to move toward the side close to the rotation center of the peach-plucking. Specifically, one end of the elastic member is connected to the linkage plate 2, and the other end of the elastic member is fixedly disposed, for example, fixedly connected to the housing of the lock body, and the elastic member applies an acting force to the linkage plate 2, so that the first sliding block 24 abuts against the inner side wall of the limiting groove 12, which is far away from the peach-dialing body 11.

In one embodiment, the elastic member is a torsion spring, and a rotating shaft is disposed at the intersection of the first supporting arm 21 and the second supporting arm 22, the torsion spring is sleeved on the rotating shaft and in a compressed state, one end of the torsion spring is fixed, and the other end abuts against the linkage plate 2, and the torsion spring applies an acting force to the linkage plate 2, so that the first sliding block 24 abuts against the inner side wall of the limiting groove 12, which is far away from the peach-plucking body 11.

In another embodiment, the elastic member is a spring in a compressed state or a stretched state, one end of the spring is fixed, and the other end of the spring is connected with the linkage plate 2, and the spring applies an acting force to the linkage plate 2, so that the first sliding block 24 abuts against the inner side wall of the limiting groove 12, which is far away from the peach-shaped body 11.

Example two

As shown in fig. 5, in this embodiment, a lock body is disclosed, and the lock body includes a housing 3, a bolt assembly 4, a handle assembly, and a lock body interlocking structure in the first embodiment. Wherein, spring bolt subassembly 4 and lock body interlock structure set up in casing 3, and the one end of handle subassembly is equipped with the square core that links to each other with the peach 1 of dialling in the lock body interlock structure, and this square core can insert in the square core hole 13 on the peach body 11 of dialling to the realization rotates with the synchronization of dialling peach 1. The lock body linkage structure is used for connecting the spring bolt assembly 4 and the handle assembly, so that the spring bolt assembly can be driven to move according to a preset mode when the handle assembly is rotated.

In this embodiment, aim at providing a lock body that can make the spring bolt subassembly follow the mode motion that predetermines regardless of forward or reverse rotation handle, its main innovation point lies in lock body interlock subassembly, and the handle subassembly is the common structure in the lock body, only plays the effect of rotating thumb wheel 1 in this embodiment, therefore does not show in the drawing.

Specifically, the latch bolt assembly 4 includes a latch bolt 41, a connecting rod 42, a first return spring 43, and a fixing bracket 44. Wherein, the fixing frame 44 is fixedly installed in the housing 3, and the connecting rod 42 is arranged on the fixing frame 44 in a penetrating way and can slide along the length direction of the connecting rod. The latch tongue 41 is provided at one end of the connecting rod 42 and can be extended out of the housing 3 or retracted into the housing 3 from outside the housing 3 as the connecting rod 42 slides. The first return spring 43 is sleeved on the connecting rod 42, one end of the first return spring is connected with the fixing frame 44, and the other end of the first return spring is connected with the latch tongue 41. When the latch 41 is retracted into the housing 3, the first return spring 43 is compressed, and a force is applied to the latch 41 toward the outside of the housing 3, so that the latch 41 is extended to the outside of the housing 3.

The lock body interlocking structure is arranged in the shell 3. Wherein, the shifting peach 1 is rotatably connected in the shell 3. The cross position of two support arms of the linkage plate 2 is hinged on a shaft in the shell 3, namely the linkage plate 2 is rotatably connected in the shell 3. The second arm 22 of the linking plate 2 is connected to the connecting rod 42, so as to drive the connecting rod 42 to slide. As shown in fig. 5, when the square core is rotated to drive the shifting peach 1 to rotate, the first sliding block 24 slides from the middle part of the limiting groove 12 to the end part, i.e. to the lower side in fig. 5, at this time, the second supporting arm 22 moves to the right side in fig. 5 and drives the connecting rod 42 to slide to the right side, so as to withdraw the latch tongue 41 into the housing 3, and if the lock body is in a closed state, the unlocking can be completed at this time. When the square core is released, the first return spring 43 pushes the latch 41 to extend out of the housing 3, and the second arm 22 moves to the left in fig. 5 along with the connecting rod 42, so that the first slider 24 slides to the middle of the limiting groove 12. In this embodiment, the first return spring 43 can function as the elastic member in the first embodiment.

In this embodiment, the linkage plate 2 and the connecting rod 42 are connected by the baffle 45. Specifically, the connecting rod 42 is provided with a baffle 45, and the baffle 45 is slidably disposed in the housing 3 so as to be slidable in synchronization with the connecting rod 42. The second support arm 22 of the linkage plate 2 abuts against the baffle 45, and when the second support arm 22 moves towards the right side, the baffle 45 is driven to move towards the right, so that the connecting rod 42 slides; when the connecting rod 42 moves leftward by the elastic force of the first return spring 43, the blocking plate 45 pushes the second arm 22 to move leftward, so that the first slider 24 slides to the middle of the limiting groove 12.

In addition, in this embodiment, in order to make the rotation of the peach-shift 1 in the housing 3 more stable, a second sliding block 14 is further provided at one end of the peach-shift 1 close to the housing 3, and a sliding slot for the second sliding block 14 to slide is provided on the housing 3. Referring to fig. 3, the second sliding block 14 is disposed on the limiting groove 12 on the back of the peach-shift 1.

The lock body in this embodiment, forward or the backward rotation handle subassembly when using, all can make the spring bolt subassembly remove to same direction according to the mode of predetermineeing, convenience of customers switch lock body.

EXAMPLE III

As shown in fig. 6, in this embodiment, a lock body is disclosed, and the lock body includes a housing 3, a bolt assembly, a handle assembly, and the lock body interlocking structure in the first embodiment. Wherein, spring bolt subassembly and lock body interlock structure set up in casing 3, and the one end of handle subassembly is equipped with the square core that links to each other with the peach 1 of dialling in the lock body interlock structure, and this square core can insert in the square core hole 13 on the peach body 11 of dialling to the realization rotates with dialling the peach 1's in step. The lock body linkage structure is used for connecting the spring bolt assembly and the handle assembly, so that the spring bolt assembly can be driven to move according to a preset mode when the handle assembly is rotated.

In this embodiment, aim at providing a no matter the lock body that can make the spring bolt subassembly follow the motion of predetermined mode by forward or reverse rotation handle, its main innovation point lies in lock body interlock subassembly, and the handle subassembly is the common structure in the lock body, only plays the effect of rotation thumb peach 1 in this embodiment, therefore does not show in the drawing.

Specifically, the latch bolt assembly includes a flipping bolt 51, a second return spring 52, and a sliding frame 53. The sliding frame 53 is disposed in the housing 3, and the turning tongue 51 can turn and slide therein. The second return spring 52 has one end connected to the flip tongue 51 and the other end connected to the slide frame 53, and applies a biasing force to the flip tongue 51 toward the outside of the housing 3 by the second return spring 52 so that the flip tongue 51 is positioned outside the housing 3. When the lock body is applied to a door, in the door closing process, the inclined plane of the turnover tongue 51 is extruded by the door frame to move in the sliding frame 53, and the second return spring 52 pops the turnover tongue 51 out of the shell 3 after the door is closed; in the process of opening the door, the door frame presses the side surface of the turnover tongue 51 to turn the turnover tongue 51 in the sliding frame 53, and then the side surface of the turnover tongue 51 is subjected to the acting force along the length direction of the second return spring 52, so that the turnover tongue can be retracted into the shell 3 to unlock the door. Therefore, the lock body can be locked after the turnover of the turnover tongue 51 is limited. The specific structure of the flip tongue 51 is not an innovative point of the present invention and therefore will not be described in detail.

The lock body interlocking structure is arranged in the shell 3. Wherein, the shifting peach 1 is rotatably connected in the shell 3. The cross position of two support arms of the linkage plate 2 is hinged on the shell 3, namely the linkage plate 2 is rotatably connected in the shell 3. In order to lock the lock body, a turning tongue limiting part 25 which can penetrate into the sliding frame 53 is arranged at the end part of the second support arm 22 of the lock body linkage structure and is used for limiting the turning action of the turning tongue 51. As shown in fig. 6, when the square core is rotated to drive the peach 1 to rotate, the first sliding block 24 slides from the middle part of the limiting groove 12 to the end part, i.e. moves to the upper side in fig. 6, at this time, the end part of the second support arm 22 moves to the lower side in fig. 6, so that the turnover tongue limiting part 25 moves to the outside of the sliding frame 53, the limitation on the turnover tongue 51 is removed, and the turnover tongue 51 is convenient to turn over, thereby realizing the unlocking of the lock body. After the lock body is unlocked, the second return spring 52 can eject the turnover tongue 51 out of the shell 3.

In this embodiment, a rotation shaft 26 is disposed at the intersection of the two arms of the linkage plate 2, and the rotation shaft 26 is rotatably connected to the housing 3. A torsion spring 27 is fitted around the rotation shaft 26, and a torsion spring stopper 28 is provided on the housing 3. One end of the torsion spring 27 abuts against the torsion spring stopper 28, the other end abuts against the interlinking plate 2, and the torsion spring 27 is in a compressed state, and applies an acting force to the interlinking plate 2, so that the first slider 24 tends to move toward the lower side in fig. 6, and is located in the middle of the stopper groove 12. The torsion spring 27 in this embodiment can function as the elastic member in the first embodiment.

After the unlocking action is completed to release the square core, the torsion spring 27 pushes the first slider 24 to slide to the middle of the limiting groove 12, and at this time, the end of the second support arm 22 moves upward, so that the overturning tongue limiting portion 25 penetrates into the sliding frame 53 to limit the overturning action of the overturning tongue 51.

The lock body in the embodiment can release the locking effect of the bolt assembly by rotating the handle assembly forwards or reversely when in use, and after the handle assembly is released, the overturning tongue limiting part 25 can automatically enter the sliding frame 53 to limit the overturning action of the overturning tongue 51, so that a user can conveniently open and close the lock body.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A lock body linkage structure is characterized by comprising a dial peach and a linkage plate; wherein the content of the first and second substances,

the shifting peach comprises a shifting peach body and a limiting groove arranged on the side of the shifting peach body, wherein a square core hole is formed in the shifting peach body, the limiting groove is of a groove-shaped structure with closed periphery, and the distance between the middle part of the limiting groove and the rotation center of the shifting peach is larger than the distance between the two ends of the limiting groove and the rotation center of the shifting peach;

the linkage plate comprises a first support arm and a second support arm which are intersected, a rotating shaft or a shaft hole is arranged at the intersection of the first support arm and the second support arm, a first sliding block which is assembled in the limiting groove in a sliding mode is arranged on the first support arm, and the initial position of the first sliding block is located in the middle of the limiting groove.

2. The lock body linkage structure according to claim 1, further comprising:

and one end of the elastic piece is connected with the linkage plate, and applies acting force to the linkage plate to enable the first sliding block to be abutted against the inner side wall of the limiting groove far away from the peach poking body.

3. A lock body interlocking structure according to claim 2,

the crossing department of first support arm and second support arm is equipped with the rotation axis, the elastic component is for setting up rotatory epaxial torsional spring, the torsional spring is in compression state, the one end of torsional spring is fixed, and the other end is connected on the interlock board.

4. A lock body interlocking structure according to claim 2,

the elastic piece is a spring in a compression state or a stretching state, and one end of the spring is connected with the linkage plate.

5. A lock body, comprising:

a housing;

the spring bolt assembly comprises a latch bolt, a connecting rod, a first return spring and a fixing frame, wherein the latch bolt is arranged at the end part of the connecting rod, the first return spring is sleeved on the connecting rod, one end of the first return spring is connected with the latch bolt, the other end of the first return spring is connected with the fixing frame, the connecting rod is arranged in the fixing frame in a penetrating way, and the fixing frame is fixedly arranged in the shell;

the lock body linkage structure of claim 1, wherein the second support arm is connected with the connecting rod, and the linkage plate and the dial are rotatably connected to the shell;

handle subassembly, one end is equipped with and inserts square core in the square core hole.

6. A lock body according to claim 5,

the connecting rod is provided with a baffle, and the second support arm abuts against the baffle;

when the square core is rotated, the first sliding block slides from the middle part of the limiting groove to the end part, the second support arm drives the baffle to move to one side far away from the latch bolt, and drives the connecting rod to move so that the latch bolt is retracted into the shell;

after the square core is released, the first reset spring pushes the latch bolt to extend out of the shell, and the baffle plate pushes the second support arm to move, so that the first sliding block slides to the middle of the limiting groove.

7. A lock body according to claim 5,

a second sliding block is further arranged at one end, close to the shell, of the shifting peach;

and the shell is provided with a sliding groove for the second sliding block to slide.

8. A lock body, comprising:

a housing;

the spring bolt assembly comprises a turnover tongue, a second reset spring and a sliding frame, the turnover tongue is arranged in the sliding frame, one end of the second reset spring is connected with the turnover tongue, the other end of the second reset spring is connected with the sliding frame, and the turnover tongue can extend to the outside of the shell under the elastic force of the second reset spring;

the lock body linkage structure according to claim 3, wherein the end of the second support arm is provided with a turnover tongue limiting part penetrating into the sliding frame for limiting the turnover action of the turnover tongue, and the linkage plate and the peach-dialing member are rotatably connected to the housing;

9. A lock body according to claim 8,

the shell is provided with a torsion spring limiting part;

one end of the torsion spring is abutted against the torsion spring limiting part, and the other end of the torsion spring is abutted against the linkage plate;

when the square core is rotated, the first sliding block slides from the middle part of the limiting groove to the end part, the limiting part of the turnover tongue moves out of the sliding frame, and the limitation on the turnover tongue is released;

after releasing the square core, the torsion spring applies acting force to the linkage plate to enable the first sliding block to slide to the middle of the limiting groove, and meanwhile, the overturning tongue limiting part moves into the sliding frame.

10. A lock body according to claim 8,