CN114856316A

CN114856316A - Lock inclined bolt assembly

Info

Publication number: CN114856316A
Application number: CN202210600608.2A
Authority: CN
Inventors: 邹勇; 陈彬
Original assignee: Yunding Network Technology Beijing Co Ltd
Current assignee: Yunding Network Technology Beijing Co Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-08-05

Abstract

The embodiment of the application discloses a lock body latch bolt assembly, which comprises a latch bolt, an action part and a stop part; the latch bolt is connected with the action part, and the action part acts to drive the latch bolt to extend outwards or retract inwards relative to the lock body; the stop part can switch between backstop position and non-backstop position, action part drives when the latch bolt outwards stretches out to close the lock position, action part's conflict face and backstop position the backstop face of stop part is contradicted, makes the latch bolt can't further outwards stretch out, action part's conflict face and/or the backstop face of stop part is equipped with the blotter. The oblique tongue assembly has the advantages of reversing of the oblique tongue, low noise, good silencing effect and the like.

Description

Lock inclined bolt assembly

Technical Field

The application relates to the technical field of lock bodies, in particular to a lock body oblique tongue component.

Background

Some lock bodies are provided with a latch bolt that can be extended outwardly to a locked position and retracted inwardly to an unlocked position relative to the lock body.

The intelligent degree, the silence effect, response speed, the structural performance of present lock body also all have promotion space.

Disclosure of Invention

The application provides a lock body oblique tongue assembly, which comprises an oblique tongue, an action part and a stop part; the oblique bolt is connected with the action part, and the action part acts to drive the oblique bolt to extend outwards or retract inwards relative to the lock body; the stop part can switch between backstop position and non-backstop position, action part drives when the latch bolt outwards stretches out to close the lock position, action part's conflict face and backstop position the backstop face of stop part is contradicted, makes the latch bolt can't further outwards stretch out, action part's conflict face and/or the backstop face of stop part is equipped with the blotter.

In one embodiment of the lock body latch bolt assembly, the latch bolt assembly includes rolling bodies rotatably mounted on a side of the actuating member contacting the top cover and/or a side of the actuating member contacting the bottom cover such that the actuating member and the top cover and/or the bottom cover are in rolling friction via the rolling bodies.

The latch bolt assembly comprises a trigger part, a first switch and a second switch, the trigger part is linked with the action part, the first switch and the second switch are sequentially arranged along the action path of the action part, the action part drives the latch bolt to extend outwards to a locking position, the trigger part triggers the first switch, and the action part drives the latch bolt to retract inwards to an unlocking position, and the trigger part triggers the second switch.

In one embodiment of the latch assembly, the latch assembly further comprises a guide member fixedly disposed and in guiding engagement with the actuating member to guide the actuating member to move along a predetermined path.

In one embodiment of the lock body latch bolt assembly, the stop member shifts between the stop position and the non-stop position by moving linearly.

In one embodiment of the latch assembly, the stop member is provided with a guide portion on one side adjacent to the top cover and/or one side adjacent to the bottom cover, the guide portion being in guiding engagement with the guide mating portion of the top cover or the bottom cover to guide the stop member along the predetermined linear path.

An embodiment of lock body latch bolt subassembly, the action part includes latch bolt pole and locating part, the latch bolt with the locating part all in the latch bolt pole, the latch bolt pole with the locating part action drives the relative lock body of latch bolt outwards stretches out or inwards retracts, the conflict face is located the locating part, when the latch bolt outwards stretches out closed lock position, the locating part conflict face and backstop position the backstop face of stop part is contradicted, makes the latch bolt can't further outwards stretch out.

One embodiment of a lock body latch bolt assembly, said latch bolt assembly further comprising a spring and a spring press; the spring is sleeved on the periphery of the latch bolt rod, and the spring is limited between the latch bolt and the spring pressing piece.

An embodiment of lock body latch bolt subassembly, from the one end of latch bolt pole is equipped with first pole section, second pole section and third pole section along the pole length direction in proper order, the external diameter of second pole section is less than first pole section with the external diameter of second pole section, thereby second pole section periphery forms the recess, first pole section with the periphery of three pole sections is equipped with the annular knurl, the latch bolt is equipped with the installation cover, first pole section with third pole section with the hole interference fit of installation cover, the installation cover is equipped with the depressed part, the depressed part is recessed in the recess of second pole section periphery, make the latch bolt with the latch bolt pole one end is pressed and is riveted and is connected.

An embodiment of lock body latch bolt subassembly, from the tail end of latch bolt pole is equipped with fourth pole section and fifth pole section along the pole length direction in proper order, the external diameter of fourth pole section is less than the external diameter of fifth pole section, thereby the fifth pole section with the juncture of fourth pole section forms riveting face, the locating part is equipped with the through-hole, through the through-hole rotationally the suit in fourth pole section periphery, the fourth pole section is kept away from the one end of fifth pole section even has the separation blade, in order to with the locating part is spacing the separation blade with rivet between the face, make the locating part with the latch bolt pole the other end is riveted soon and is connected.

The latch bolt subassembly that this application embodiment provided has that the latch bolt can commutate, small in noise, silence is effectual, compact structure, structural stability are high, intelligent degree is high, control is accurate, response speed advantage such as fast.

Drawings

FIG. 1 is a perspective view of a portion of the structure of one embodiment of a latch assembly provided herein;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a perspective view of a portion of the structure of another embodiment of a latch assembly provided herein;

FIG. 4 is a partial top view of the latch bolt assembly and lock body in an assembled condition;

FIG. 5 is a partial bottom view of the latch bolt assembly and lock body in an assembled condition;

FIG. 6 is a schematic view of the latch bolt assembly assembled to the housing of the lock body;

FIG. 7 is a coaxial exploded view of the mortise lock cylinder and the positioning socket of FIG. 6;

FIG. 8 is a schematic view of the Hall switch assembly assembled to the housing of the lock body;

fig. 9 is a partial sectional view of the assembled state of the hall switch assembly and the side plate.

The reference numerals are explained below:

100, 101a, 101B, 101C, 101D, 102a, 102B, 102C, 102D, fourth, 102e, fifth, 103, 104, 105, 106, 107, 108, 109, 110, 111, first, 112, second, 113, guide, a, B, recess, C, D, rivet;

200 lock body shells, 201 top covers, 202 bottom covers, 203 side plates, 204 first positioning seats and 205 second positioning seats;

300 a PCB module;

400 inclined tongue pulling sheets;

501 clutch shifting piece, 502 clutch trigger piece, 503 release joint piece, 504 first elastic piece and 505 second elastic piece;

600 inserting core lock core;

701 main shifting piece, 702 main bolt;

800 Hall switch assembly, 801 Hall switch support, 802 Hall switch PCB, 803 Hall detection element.

Detailed Description

The embodiment of the application provides a lock body latch bolt assembly 100, and a lock body adopting the latch bolt assembly 100 has the advantages of low noise, high intelligent degree, high response speed, stable structure, compact structure and the like.

In order to make those skilled in the art better understand the technical solution of the present application, the lock body latch bolt assembly provided in the present application will be described in further detail below with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, in this embodiment, the latch bolt assembly 100 includes a latch bolt 101, an action member a, and a stopper 109. In the figure, the action component a comprises a latch rod 102 and a limiting component 103, the limiting component 103 is connected to the latch rod 102, and the latch rod 102 and the limiting component 103 can act together under the action of external force.

Of course, the structure of the actuating member a is not limited to this, as long as it can drive the latch tongue 101 to extend and contract and can abut against the stopper 109.

Specifically, the operation mode of the operating member a may be moving, swinging, or rotating, and in the figure, the operation mode of the latch lever 102 and the stopper 103 is moving along the longitudinal direction of the latch lever 102 (i.e., the X direction in fig. 4).

The latch bolt 101 is connected to the actuating component a, in the figure, the latch bolt 101 and the limiting component 103 are both connected to the latch bolt rod 102, and when the latch bolt rod 102 and the limiting component 103 are actuated by an external force, the latch bolt 101 is driven to extend outwards or retract inwards relative to the lock body housing 200. As will be understood in conjunction with fig. 4, the lock body housing 200 is provided with a top cover 201, a bottom cover 202 and a side plate 203, and the side plate 203 is provided with a latch bolt hole through which the latch bolt 101 can protrude to the outside of the lock body housing 200. When unlocking, the latch bolt 101 needs to be retracted inwards to the unlocking position, and when the latch bolt 101 is located at the unlocking position, the whole latch bolt 101 is usually located inside the lock body shell 200. When the lock is closed, the latch bolt 101 needs to be extended outwards to the locking position, and when the latch bolt 101 is located at the locking position, the latch bolt 101 is at least partially located outside the lock body shell 200.

The stopper 109 is disposed on one side of the motion path of the motion member a, and the stopper 109 can be switched between a stop position and a non-stop position. When the stopper 109 is switched to the stop position, the stopper 109 at least partially blocks the motion path of the motion member a, thereby stopping the motion member a. When the stopper 109 is switched to the non-stop position, the stopper 109 is not in the movement path of the moving member a, and therefore does not affect the movement of the moving member a.

During normal opening and closing, the stop 109 is located at the stop position. When the latch tongue 101 needs to be reversed, the stop member 109 is located at a non-stop position. The latch tongue 101 is reversed to accommodate different door opening directions. When the latch bolt 101 is reversed, the latch bolt 101 needs to extend outward to a position (referred to as a reversing position) that is a little bit further outside than the locking position, that is, during normal locking and unlocking, the latch bolt 101 only needs to move in a small section of the locking position-unlocking position, and during reversing, the latch bolt 101 needs to move in a large section of the locking position-reversing position. Therefore, when the latch 101 is reversed, the stopper 109 needs to be switched to the non-stop position, and after the reversal is completed, the stopper 109 needs to be switched to the stop position.

When the stop member 109 is located at the stop position and the actuating member a drives the latch tongue 101 to extend outward to the locking position, the abutting surface of the actuating member a and the abutting surface of the stop member 109 abut against each other, so that the latch tongue 101 cannot extend outward any more, and is stabilized at the locking position.

At least one of the collision surface of the acting component a and the stop surface of the stopper 109 is provided with a cushion 110, that is, the cushion 110 may be provided on the collision surface of the acting component a, the cushion 110 may be provided on the stop surface of the stopper 109, or both the cushions 110 may be provided. The cushion pad 110 may be made of silica gel or cotton pad with sound absorption and noise reduction effects.

Through setting up blotter 110, close at every turn and lock when leading to action part A's conflict face and the conflict face of backstop piece 109 to contradict, the touching noise can be effectively reduced by blotter 110, consequently can reduce the noise of switch lock in-process, promotes the silence effect of lock body.

With continued reference to FIG. 1, in this embodiment, the latch assembly 100 further includes a spring 104 and a spring bias 105. The spring 104 is sleeved on the periphery of the latch rod 102, and the spring 104 is limited between the latch 101 and the spring pressing piece 105. When the latch levers 102 are retracted inward or extended outward, the position of the spring pressing member 105 remains unchanged. In the illustrated embodiment, the spring hold-down member 105 is a ring-shaped structure and is disposed around the latch rod 102, but the structure of the spring hold-down member 105 is not limited to the ring-shaped structure, and may be any structure capable of holding down the spring 104.

When the latch bolt rod 102 and the limiting member 103 act under the action of an external force to drive the latch bolt 101 to retract inwards, the spring 104 is gradually compressed, and after the external force is removed, the latch bolt rod 102 and the limiting member 103 act in opposite directions under the action of the elastic force of the spring 104 to drive the latch bolt 101 to extend outwards. Therefore, under the condition that the spring 104 and the spring pressing piece 105 are arranged, after the lock is unlocked, the lock body can be automatically closed under the action of elastic force, so that the lock body is more intelligent and more convenient to use. Of course, in some embodiments, the spring 104 and the spring pressing member 105 may not be provided, and the latch tongue 101 may be driven to extend outward by applying an external force in the opposite direction to the latch tongue 101 or the limiting member 103, so as to achieve locking.

With continued reference to fig. 1, in this embodiment, the latch assembly 100 further includes a trigger 108, the trigger 108 is linked with the action component a, and in the figure, the trigger 108 is integrally disposed on the limiting component 103, so that the trigger 108 is linked with the action component a.

In the case where the trigger 108 is provided, as in fig. 4 or 5, the latch assembly 100 is also provided with a first switch 111 and a second switch 112. Specifically, the first switch 111 and the second switch 112 may be integrated with a PCB module 300, which is fixedly assembled inside the lock body housing 200, and may be disposed near the triggering member 108 of the latch bolt assembly 100. The trigger 108 may be disposed on a side of the limiting member 103 close to the PCB module 300, and the trigger 108 may protrude toward the PCB module 300 than the limiting member 103.

Specifically, the first switch 111 and the second switch 112 are sequentially arranged along the operation path of the operation member a, and in the figure, the first switch 111 and the second switch 112 are sequentially arranged along the X direction. When the latch bolt 101 outwards stretches out to the off-lock position, the trigger piece 108 triggers the first switch 111, when the latch bolt 101 inwards retracts to the off-lock position, the trigger piece 108 triggers the second switch 112, and the first switch 111 and the second switch 112 are triggered to send signals to the controller of the PCB module 300, so that the controller can judge the current position of the latch bolt 101 according to the signals, the switch lock can be accurately controlled, and the intelligent degree and the control precision of the lock body are improved.

Referring to fig. 2, in this embodiment, a latch 101 is press-fit connected to one end (hereinafter referred to as a first end) of a latch rod 102. The method comprises the following steps:

the latch rod 102 is provided with a first segment 102a, a second segment 102b and a third segment 102c, the first segment 102a, the second segment 102b and the third segment 102c being arranged in sequence along the length of the rod from the first end of the latch rod 102. The second segment 102b has an outer diameter that is smaller than the outer diameters of the first and

second segments

102a, 102b, thereby forming a groove C in the outer periphery of the second segment 102 b. The first segment 102a and the third segment 102c are provided with knurls on the outer circumference, and the form of the knurls is not limited. The latch bolt 101 is provided with a mounting sleeve, which is arranged on the outer latch bolt 101a, in particular, can be arranged as an integral structure with the outer latch bolt 101a, when the latch bolt 101 is provided with an inner latch bolt 101b and an outer latch bolt 101 a. The first segment 102a and the third segment 102c are in interference fit with the inner bore of the mounting sleeve. The mounting sleeve is provided with a recess B which is formed by pressing after the mounting sleeve is assembled with the latch rod 102. The recess B is recessed into a groove C in the outer periphery of the second rod segment 102B.

The press riveting connection structure is high in stability and compact in structure, and the gap between the assembled latch bolt 101 and the latch bolt rod 102 is small, so that gap noise is not easy to occur in the locking and unlocking process.

With continued reference to fig. 2, in this embodiment, the retaining member 103 is rivet-connected to the other end (hereinafter referred to as the second end) of the latch rod 102. The method comprises the following steps:

the latch rod 102 is provided with a fourth rod segment 102d and a fifth rod segment 102e, and the fourth rod segment 102d and the fifth rod segment 102e are arranged in sequence from the second end of the latch rod 102 along the rod length direction. The outer diameter of the fourth rod segment 102D is smaller than the outer diameter of the fifth rod segment 102e, thereby forming a riveted surface D at the intersection of the fifth rod segment 102e and the fourth rod segment 102D. The limiting member 103 is provided with a through hole, through which the fourth rod segment 102D is rotatably sleeved on the periphery of the fourth rod segment 102D, and one end of the fourth rod segment 102D, which is far away from the fifth rod segment 102e, is connected with a stop piece 106, so as to limit the limiting member 103 between the stop piece 106 and the riveting surface D.

The spin-riveting connection structure is high in stability and compact in structure, and after the spin-riveting connection structure is assembled, the limiting piece 103 can rotate a certain amount relative to the latch bolt 102, so that the limiting piece 103 can be adjusted in an angle in a self-adaptive mode in the locking and unlocking process, and the problems of unsmooth locking and unlocking and high noise caused by interference of the top cover 201, the bottom cover 202 or other components are solved.

The assembling manner of the latch tongue 101 and the latch tongue rod 102 is not limited to the press-riveting connection structure, and the two may be connected together in a limited manner. The assembly method of the limiting member 103 and the latch rod 102 is not limited to the spin-rivet connection structure, and the two members may be limited together.

The structure of the latch tongue 101 is not limited, and as shown in the illustrated embodiment, an outer latch tongue 101a and an inner latch tongue 101b may be provided, and the inner latch tongue 101b may be rotatably assembled with the outer latch tongue 101a by an elastic pin 101c, that is, after being assembled, the inner latch tongue 101b may have a certain rotation amount with respect to the outer latch tongue 101a, and other latch tongue structures may be adopted.

As shown in fig. 3, this embodiment is based on the embodiment shown in fig. 1 and is provided with rolling elements 107. The rolling body 107 is rotatably mounted on one side of the limiting member 103 close to the top cover 201 and/or one side of the limiting member 103 close to the bottom cover 202, so that the acting component a and the top cover 201 and/or the bottom cover 202 realize rolling friction through the rolling body 107. Like this, the switch lock in-process, frictional noise is littleer, can further promote the silence effect of lock body.

Specifically, the rolling elements 107 may be rollers, balls, or the like, and the rotation direction of the rolling elements 107 may be unidirectional, bidirectional, or multidirectional.

In this embodiment, the latch assembly 100 is further provided with a guide 113, as shown in FIG. 4. The guide member 113 is fixedly provided and is in guiding engagement with the operating member a to guide the operating member a to operate along a predetermined path, so that it is possible to prevent the operating member a from deviating from the predetermined path to cause impact noise. In the figure, the guide member 113 is a U-shaped block, the latch lever 102 of the operating member a is inserted into the U-shaped block, and the inner wall of the U-shaped block is guided and fitted to the outer peripheral surface of the latch lever 102 to guide the movement of the latch lever 102 in the X direction. Of course, the structure of the guide 113 can be flexibly adjusted according to the structure of the operating member a, the operating path, and the like.

In addition, when the guide 113 is provided, one end of the spring pressing member 105 may abut against the guide 113, and the other end may abut against the spring 104, so that the position of the spring pressing member 105 is restricted by the guide 113, and the spring 104 is prevented from being caught in the guide 113.

In this embodiment, as shown in fig. 4, the stop member 109 is shifted between the stop position and the non-stop position by moving linearly, so that the stop member 109 can shift between the stop position and the non-stop position quickly, and the lock body has a quick response when reversing the latch tongue 101. In the figure, the stopper 109 moves in the Y direction, and the moving direction of the stopper 109 is perpendicular to the moving direction of the latch lever 102. Of course, the stop 109 can also be shifted between the stop position and the non-stop position by other movement patterns, such as rotation, pivoting, etc.

Specifically, a side of the stopper 109 close to the top cover 201 and/or a side close to the bottom cover 202 may be provided with a guide portion, and the guide portion is in guide fit with a guide adapting portion of the top cover 201 or the bottom cover 202 to guide the stopper 109 to move along a predetermined linear path, so that the stopper 109 can be prevented from deviating from the predetermined linear path to cause impact noise. The guide part and the guide adapting part can be of a concave structure, a convex structure adapted with the concave structure, a slide block structure and a guide rail structure adapted with the slide block structure.

Therefore, the latch bolt assembly 100 provided by the embodiment of the application has the advantages of small noise, good mute effect, compact structure, high structural stability, high intelligent degree, accurate control, high response speed and the like.

Referring to fig. 6, in this embodiment, a mortise lock cylinder 600 is provided. When the mortise lock core 600 rotates to a preset position, the latch bolt shifting piece 400 can be shifted to rotate, so that the latch bolt shifting piece 400 shifts the limiting piece 103 of the latch bolt assembly 100 to move along a preset track, the latch bolt 101 is driven to retract into the lock body shell 200, and when the shifting force of the latch bolt shifting piece 400 is removed, the latch bolt 101 extends out of the lock body shell 200 under the elastic force of the spring 104.

As shown in fig. 6, in this embodiment, a clutch dial 501, a clutch trigger 502 and a clutch release member 503 are further provided, when the mortise lock core 600 rotates to a predetermined position, the clutch dial 500 can be shifted to rotate from an initial position, the clutch dial 500 can be shifted to rotate the clutch trigger 502 from the initial position, and one end of the clutch trigger 502 can push the release member 503 to slide from the initial position to a release position. In addition, a first elastic member 504 (e.g., a torsion spring) is connected between the clutch plate 501 and the lock body housing 200, and the clutch plate 501 can be reset to the initial position under the elastic force of the first elastic member 504. A second elastic member 505 (e.g., a torsion spring) is connected between the clutch trigger 503 and the housing, and the clutch trigger 503 can be reset to the initial position under the elastic force of the second elastic member 505.

As shown in fig. 6, in this embodiment, a main pulling piece 701 is further provided, and when the mortise lock cylinder 600 is rotated to a predetermined position, the main pulling piece 701 can be pulled to rotate, so that the main pulling piece 701 can pull the main bolt 702 to switch between the extended state and the retracted state.

Specifically, as shown in fig. 7, a first positioning seat 204 and a second positioning seat 205 are fixed inside the lock body housing 200. The first positioning seat 204 is fixed with the top cover 201 through screws, and the top of each screw is lower than the top cover 201. The second positioning seat 205 is riveted and fixed with the bottom cover 202 by a rivet, and the second positioning seat 205 is provided with a semi-cylindrical structure. The latch lifting piece 400 and the clutch lifting piece 500 are limited between the first positioning seat 204 and the second positioning seat 205, and are sleeved on the semi-cylindrical structure of the second positioning seat 205 and can rotate coaxially with the semi-cylindrical structure. The mortise lock cylinder 600 is inserted into the center of the semi-cylindrical structure of the second positioning socket 205.

Referring to fig. 8, in this embodiment, a hall switch assembly 800 is provided, and a hall switch bracket 801 is disposed near the side plate 203, passes through a corresponding mounting hole on the side plate 203, and is exposed outside the side plate 203, and the outer side surface of the side plate 203 are maintained in a same plane. The bottom surface of the part of the hall switch bracket 801 located in the lock body shell 200 is provided with two cross-shaped cylinders, and the two cross-shaped cylinders are assembled into the round hole of the bottom cover 202. The top cover 201 is provided with a pressing structure which presses the middle part of the hall switch bracket 801 to prevent the hall switch assembly 801 from deforming and bouncing.

As shown in fig. 9, a hall switch PCB802 is assembled inside the hall switch bracket 801 near the side plate 203, and may be specifically snap-assembled to the hall switch bracket 801. A wiring groove for fixing a Hall switch connecting wire is arranged in the middle of the Hall switch bracket 801. In addition, a hall detection element 803 is further arranged, the hall detection element 803 is a patch element, and the patch element is attached to the bottom surface of the hall detection PCB 802.

The foregoing has been a description of the principles and implementations of the present application using specific examples, which are provided solely to aid in understanding the methods and their core concepts of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. The lock body oblique tongue component is characterized by comprising an oblique tongue (101), an action part (A) and a stop piece (109); the oblique tongue (101) is connected with the action part (A), and the action of the action part (A) drives the oblique tongue (101) to extend outwards or retract inwards relative to the lock body (200); the stop member (109) can switch between backstop position and non-backstop position, action part (A) drives when latch bolt (101) outwards stretches out to close the lock position, the conflict face of action part (A) is contradicted with the backstop face of stop member (109) on the backstop position, in order to restrict latch bolt (101) further outwards stretches out, the conflict face of action part (A) and/or the backstop face of stop member (109) is equipped with blotter (110).

2. The lock body latch bolt assembly according to claim 1, characterized in that the latch bolt assembly (100) comprises rolling bodies (107), the rolling bodies (107) are rotatably mounted on one side of the acting member (A) contacting the top cover (201) and/or one side of the acting member (A) contacting the bottom cover (202), so that the acting member (A) and the top cover (201) and/or the bottom cover (202) realize rolling friction through the rolling bodies (107).

3. The lock body latch bolt assembly according to claim 1, characterized in that the latch bolt assembly (100) comprises a trigger member (108), a first switch (111) and a second switch (112), the trigger member (108) is linked with the action member (A), the first switch (111) and the second switch (112) are sequentially arranged along the action path of the action member (A), when the action member (A) drives the latch bolt (101) to extend outwards to the locking position, the trigger member triggers the first switch (111), and when the action member (A) drives the latch bolt (101) to retract inwards to the unlocking position, the trigger member (108) triggers the second switch (112).

4. A lock latch assembly according to claim 1, characterized in that the latch assembly (100) further comprises a guide (113), said guide (113) being fixedly arranged and in guiding engagement with the actuation member (a) for guiding the actuation member (a) to move along a predetermined path.

5. The lock body latch bolt assembly of claim 1, wherein the stop (109) effects the shift between the stop position and the non-stop position by a linear movement.

6. A lock body latch assembly according to claim 5, characterized in that the side of the stop member (109) adjacent to the top cover (201) and/or the side adjacent to the bottom cover (202) is provided with a guiding portion which is in guiding engagement with a guiding adaptation portion of the top cover (201) or the bottom cover (202) for guiding the stop member (109) along the predetermined linear path.

7. The lock latch assembly of any one of claims 1 to 6, wherein the actuating member (A) comprises a latch rod (102) and a stopper (103), the latch (101) and the stopper (103) are both connected to the latch rod (102), the latch rod (102) and the stopper (103) are actuated to drive the latch (101) to extend or retract outwardly relative to the lock body (200), the interference surface is disposed on the stopper (103), and when the latch (101) extends outwardly to a locking position, the interference surface of the stopper (103) interferes with the stop surface of the stopper (109) at the stop position to prevent the latch (101) from further extending outwardly.

8. The lock body latch bolt assembly of claim 7, wherein the latch bolt assembly (100) further comprises a spring (104) and a spring press (105); the spring (104) is sleeved on the periphery of the latch bolt rod (102) and the spring (104) is limited between the latch bolt (101) and the spring pressing piece (105).

9. A lock body latch bolt assembly according to claim 8, characterized in that a first bolt segment (102a), a second bolt segment (102b) and a third bolt segment (102c) are provided in the order of the bolt length from one end of the latch bolt (102), the second pole segment (102b) having an outer diameter smaller than the outer diameters of the first pole segment (102a) and the second pole segment (102b), so as to form a groove (C) on the periphery of the second segment (102b), the peripheries of the first segment (102a) and the third segment are provided with knurls, the latch bolt (101) is provided with a mounting sleeve, the first rod section (102a) and the third rod section (102c) are in interference fit with an inner hole of the mounting sleeve, the mounting sleeve is provided with a concave part (B) which is recessed into a groove (C) on the periphery of the second rod section (102B), and enabling the latch tongue (101) to be connected with the end of the latch tongue rod (102) in a press riveting mode.

10. The lock body latch bolt assembly of claim 9, wherein a fourth bolt segment (102d) and a fifth bolt segment (102e) are provided in order from the rear end of the latch bolt (102) in the length direction of the bolt, the outer diameter of the fourth pole segment (102d) is smaller than the outer diameter of the fifth pole segment (102e), so as to form a riveting surface (D) at the intersection of the fifth segment (102e) and the fourth segment (102D), the limiting member (103) being provided with a through hole, the through hole is rotatably sleeved on the periphery of the fourth rod segment (102d), one end of the fourth rod segment (102d) far away from the fifth rod segment (102e) is connected with a baffle plate (106), so as to limit the limiting piece (103) between the blocking sheet (106) and the riveting surface (D), and the limiting piece (103) is connected with the other end of the oblique tongue rod (102) in a riveting way.

11. A lock body, characterized in that the lock body comprises a stay assembly (100) according to any of claims 1-10.