Lock body latch bolt assembly

Abstract

The embodiment of the present application discloses a lock body oblique bolt assembly, comprising an oblique bolt, an action component, and a stopper; the oblique bolt is connected to the action component, and the action component drives the oblique bolt to extend outward or retract inward relative to the lock body; the stopper can switch between a stop position and a non-stop position, and when the action component drives the oblique bolt to extend outward to the locked position, the contact surface of the action component contacts the stopper surface of the stopper at the stop position, so that the oblique bolt cannot extend further outward, and the contact surface of the action component and / or the stopper surface of the stopper are provided with a buffer pad. The oblique bolt assembly has the advantages of oblique bolt reversibility, low noise, and good mute effect.

Description

Technical Field

[0001] The present application relates to the technical field of lock bodies, and in particular to a lock body latch bolt assembly. Background Art

[0002] Some lock bodies are provided with an inclined bolt, which can extend outwardly relative to the lock body to a locked position and retract inwardly to an unlocked position.

[0003] There is still room for improvement in the current lock body's intelligence level, quietness effect, response speed, structural performance, etc. Summary of the invention

[0004] The present application provides a lock body inclined bolt assembly, comprising an inclined bolt, an action component, and a stopper; the inclined bolt is connected to the action component, and the action component is actuated to drive the inclined bolt to extend outward or retract inward relative to the lock body; the stopper can switch between a stop position and a non-stop position, and when the action component drives the inclined bolt to extend outward to a locked position, the contact surface of the action component contacts the stop surface of the stopper at the stop position, so that the inclined bolt cannot extend further outward, and a buffer pad is provided on the contact surface of the action component and / or the stop surface of the stopper.

[0005] An embodiment of a lock body inclined bolt assembly, the inclined bolt assembly includes a rolling body, and the rolling body is rotatably mounted on a side of the action component contacting the top cover and / or a side of the action component contacting the bottom cover, so that the action component and the top cover and / or the bottom cover achieve rolling friction through the rolling body.

[0006] An embodiment of a lock body inclined tongue assembly, the inclined tongue assembly includes a trigger member, a first switch and a second switch, the trigger member is linked with the action component, the first switch and the second switch are arranged in sequence along the action path of the action component, when the action component drives the inclined tongue to extend outward to the locked position, the trigger member triggers the first switch, and when the action component drives the inclined tongue to retract inward to the unlocked position, the trigger member triggers the second switch.

[0007] In one embodiment of the lock body inclined bolt assembly, the inclined bolt assembly further comprises a guide member, which is fixedly arranged and cooperates with the action component to guide the action component to move along a predetermined path.

[0008] In an implementation manner of the lock body latch assembly, the stop member realizes switching between the stop position and the non-stop position by linear movement.

[0009] In one embodiment of the lock body inclined bolt assembly, a guide portion is provided on a side of the stopper close to the top cover and / or a side close to the bottom cover, and the guide portion cooperates with a guide adapter portion of the top cover or the bottom cover to guide the stopper to move along a predetermined straight path.

[0010] An embodiment of a lock body inclined bolt assembly, the action component includes an inclined bolt rod and a limit member, the inclined bolt and the limit member are both connected to the inclined bolt rod, the inclined bolt rod and the limit member operate to drive the inclined bolt to extend outward or retract inward relative to the lock body, the resistance surface is provided on the limit member, when the inclined bolt extends outward to the locked position, the resistance surface of the limit member contacts the stop surface of the stop member at the stop position, so that the inclined bolt cannot extend further outward.

[0011] In one embodiment of the lock body oblique bolt assembly, the oblique bolt assembly further includes a spring and a spring pressing member; the spring is sleeved on the outer periphery of the oblique bolt rod, and the spring is limited between the oblique bolt and the spring pressing member.

[0012] An embodiment of a lock body inclined bolt assembly, a first rod segment, a second rod segment and a third rod segment are sequentially provided along the rod length direction from one end of the inclined bolt rod, the outer diameter of the second rod segment is smaller than the outer diameters of the first rod segment and the second rod segment, so that a groove is formed on the outer periphery of the second rod segment, the outer peripheries of the first rod segment and the three rod segments are provided with knurling, the inclined bolt is provided with a mounting sleeve, the first rod segment and the third rod segment are interference fit with the inner hole of the mounting sleeve, the mounting sleeve is provided with a recessed portion, the recessed portion is recessed in the groove on the outer periphery of the second rod segment, so that the inclined bolt is riveted to the one end of the inclined bolt rod.

[0013] An embodiment of a lock body inclined bolt assembly is characterized in that a fourth rod segment and a fifth rod segment are sequentially provided from the tail end of the inclined bolt rod along the rod length direction, the outer diameter of the fourth rod segment is smaller than the outer diameter of the fifth rod segment, thereby forming a riveted surface at the junction of the fifth rod segment and the fourth rod segment, the limiting member is provided with a through hole, and can be rotatably mounted on the outer periphery of the fourth rod segment through the through hole, and a blocking piece is connected to the end of the fourth rod segment away from the fifth rod segment to limit the limiting member between the blocking piece and the riveted surface, so that the limiting member is riveted to the other end of the inclined bolt rod.

[0014] The inclined tongue assembly provided in the embodiment of the present application has the advantages of inclined tongue reversing, low noise, good silencing effect, compact structure, high structural stability, high degree of intelligence, precise control, and fast response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a partial structure of an embodiment of a latch bolt assembly provided by the present application;

[0016] Figure 2 for Figure 1 Exploded diagram of

[0017] Figure 3A three-dimensional diagram of a partial structure of another embodiment of a latch tongue assembly provided by the present application;

[0018] Figure 4 It is a partial top view of the oblique bolt assembly and the lock body in the assembled state;

[0019] Figure 5 It is a partial bottom view of the oblique bolt assembly and the lock body in the assembled state;

[0020] Figure 6 A schematic diagram of the assembly of the latch bolt assembly to the lock body housing;

[0021] Figure 7 for Figure 6 Coaxial exploded view of the center mortise lock core and the positioning seat;

[0022] Figure 8 It is a schematic diagram of assembling the Hall switch assembly to the lock body housing;

[0023] Fig. 9 It is a partial cross-sectional view of the Hall switch assembly and the side plate in the assembled state.

[0024] The following are the descriptions of the reference numerals:

[0025] 100 oblique tongue assembly, 101 oblique tongue, 101a outer oblique tongue, 101b inner oblique tongue, 101c elastic pin, 101d mounting sleeve, 102 oblique tongue rod, 102a first rod segment, 102b second rod segment, 102c third rod segment, 102d fourth rod segment, 102e fifth rod segment, 103 limiting member, 104 spring, 105 spring pressing member, 106 blocking piece, 107 rolling body, 108 trigger member, 109 stop member, 110 buffer pad, 111 first switch, 112 second switch, 113 guide member, A action component, B recessed portion, C groove, D riveting surface;

[0026] 200 lock body housing, 201 top cover, 202 bottom cover, 203 side plate, 204 first positioning seat, 205 second positioning seat;

[0027] 300PCB modules;

[0028] 400 bevel tongue pick;

[0029] 501 is a clutch paddle, 502 is a clutch trigger, 503 is a disengaging clutch, 504 is a first elastic member, and 505 is a second elastic member;

[0030] 600 mortise lock cylinder;

[0031] 701 main paddle, 702 main lock tongue;

[0032] 800 Hall switch assembly, 801 Hall switch bracket, 802 Hall switch PCB, 803 Hall detection element. DETAILED DESCRIPTION

[0033] The embodiment of the present application provides a lock body oblique tongue assembly 100. The lock body using the oblique tongue assembly 100 has the advantages of low noise, high intelligence, fast response speed, stable structure, and compact structure.

[0034] In order to enable those skilled in the art to better understand the technical solution of the present application, the lock body latch bolt assembly provided by the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] like Figure 1 In this embodiment, the latch bolt assembly 100 includes a latch bolt 101, an action component A, and a stopper 109. In the figure, the action component A includes a latch bolt rod 102 and a stopper 103, and the stopper 103 is connected to the latch bolt rod 102. The latch bolt rod 102 and the stopper 103 can move together under the action of an external force.

[0036] Of course, the structure of the action component A is not limited thereto, as long as it can drive the inclined tongue 101 to extend and retract and can abut against the stopper 109 .

[0037] Specifically, the action mode of the action component A can be moving, swinging or rotating, etc. In the figure, the action mode of the inclined tongue rod 102 and the limiting member 103 is along the length direction of the inclined tongue rod 102 (i.e. Figure 4 Move in the X direction.

[0038] The latch bolt 101 is connected to the action part A. In the figure, the latch bolt 101 and the stopper 103 are both connected to the latch bolt rod 102. When the latch bolt rod 102 and the stopper 103 are actuated by external force, the latch bolt 101 is driven to extend outward or retract inward relative to the lock body housing 200. Figure 4 It is understood that the lock body housing 200 is provided with a top cover 201, a bottom cover 202 and a side plate 203, and a slant bolt hole is provided on the side plate 203, through which the slant bolt 101 can extend to the outside of the lock body housing 200. When unlocking, the slant bolt 101 needs to be retracted inward to the unlocking position, and when the slant bolt 101 is in the unlocking position, usually the entire slant bolt 101 is located inside the lock body housing 200. When locking, the slant bolt 101 needs to be extended outward to the locking position, and when the slant bolt 101 is in the locking position, at least part of the slant bolt 101 is located outside the lock body housing 200.

[0039] The stopper 109 is arranged at one side of the action path of the action component 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 action path of the action component A, thereby stopping the action component A. When the stopper 109 is switched to the non-stop position, the stopper 109 is not on the action path of the action component A, thereby not affecting the action of the action component A.

[0040] During the normal opening and closing of the lock, the stopper 109 is located at the stop position. When the inclined tongue 101 needs to be reversed, the stopper 109 is located at the non-stop position. The reversal of the inclined tongue 101 is to adapt to different door opening directions. When the inclined tongue 101 is reversed, it is necessary to extend the inclined tongue 101 outward to a position slightly further outward than the locked position (referred to as the reversing position). In other words, during the normal opening and closing of the lock, the inclined tongue 101 only needs to move in a small section from the locked position to the unlocked position. During the reversing process, the inclined tongue 101 needs to move in a large section from the locked position to the reversing position. Therefore, when the inclined tongue 101 is reversed, the stopper 109 needs to be switched to the non-stop position. After the reversal is completed, the stopper 109 needs to be switched to the stop position.

[0041] When the stopper 109 is at the stop position and the action component A drives the inclined tongue 101 to extend outward to the locked position, the contact surface of the action component A will contact the stop surface of the stopper 109, so that the inclined tongue 101 can no longer extend outward, thereby stabilizing in the locked position.

[0042] At least one of the abutment surface of the action component A and the stop surface of the stopper 109 is provided with a buffer pad 110, that is, the abutment surface of the action component A alone may be provided with a buffer pad 110, the stop surface of the stopper 109 alone may be provided with a buffer pad 110, or both may be provided with a buffer pad 110. The buffer pad 110 may be made of a material having a sound absorbing and noise reducing effect, such as silica gel or cotton pad.

[0043] By providing the buffer pad 110, each time the lock is closed and the contact surface of the action component A contacts the stop surface of the stopper 109, the touch noise can be effectively reduced by the buffer pad 110, thereby reducing the noise during the opening and closing of the lock and improving the silent effect of the lock body.

[0044] Continue to refer Figure 1 In this embodiment, the latch bolt assembly 100 further includes a spring 104 and a spring pressing member 105. The spring 104 is sleeved on the outer periphery of the latch bolt rod 102 and the spring 104 is limited between the latch bolt 101 and the spring pressing member 105. When the latch bolt rod 102 is retracted inwardly or extended outwardly, the position of the spring pressing member 105 remains unchanged. In the illustrated embodiment, the spring pressing member 105 is an annular structure, which is sleeved on the outer periphery of the latch bolt rod 102. Of course, the structure of the spring pressing member 105 is not limited to an annular structure, as long as it can press the spring 104.

[0045] In the process that the inclined tongue rod 102 and the stopper 103 act under the action of external force to drive the inclined tongue 101 to retract inward, the spring 104 is gradually compressed. After the external force is removed, the inclined tongue rod 102 and the stopper 103 act in the opposite direction under the elastic force of the spring 104 to drive the inclined tongue 101 to extend outward. It can be seen that when the above-mentioned spring 104 and the spring pressing member 105 are provided, after unlocking, the lock body can automatically close the lock under the action of the elastic force, making the lock body smarter and more convenient to use. Of course, in some embodiments, the above-mentioned spring 104 and the spring pressing member 105 may not be provided, and the inclined tongue 101 or the stopper 103 may be applied with an external force in the opposite direction to drive the inclined tongue 101 to extend outward to achieve closing the lock.

[0046] Continue to refer Figure 1 In this embodiment, the latch bolt assembly 100 further includes a trigger member 108, which is linked to the action component A. In the figure, the trigger member 108 is integrated on the limit member 103 to achieve the linkage between the trigger member 108 and the action component A.

[0047] When the trigger member 108 is set, Figure 4 or Figure 5 The latch bolt assembly 100 is further provided with a first switch 111 and a second switch 112. Specifically, the first switch 111 and the second switch 112 can be assembled together with the PCB module 300, and the PCB module is fixedly assembled inside the lock body housing 200, and can be specifically arranged near the trigger member 108 of the latch bolt assembly 100. The trigger member 108 can be arranged on a side of the limit member 103 close to the PCB module 300, and the trigger member 108 can be made to protrude more toward the PCB module 300 than the limit member 103.

[0048] Specifically, the first switch 111 and the second switch 112 are arranged in sequence along the action path of the action component A. In the figure, the first switch 111 and the second switch 112 are arranged in sequence along the X direction. When the inclined tongue 101 extends outward to the locking position, the trigger member 108 triggers the first switch 111. When the inclined tongue 101 retracts inward to the unlocking position, the trigger member 108 triggers the second switch 112. After being triggered, the first switch 111 and the second switch 112 send a signal to the controller of the PCB module 300, so that the controller can determine the current position of the inclined tongue 101 according to the signal, so as to accurately control the switch lock, thereby improving the intelligence level and control accuracy of the lock body.

[0049] like Figure 2 In this embodiment, the oblique tongue 101 is connected to one end (hereinafter referred to as the first end) of the oblique tongue rod 102 by riveting. Specifically:

[0050] The oblique tongue rod 102 is provided with a first rod segment 102a, a second rod segment 102b and a third rod segment 102c, and the first rod segment 102a, the second rod segment 102b and the third rod segment 102c are arranged in sequence from the first end of the oblique tongue rod 102 along the rod length direction. The outer diameter of the second rod segment 102b is smaller than the outer diameters of the first rod segment 102a and the second rod segment 102b, so that a groove C is formed on the outer periphery of the second rod segment 102b. The outer peripheries of the first rod segment 102a and the third rod segment 102c are provided with knurling, and the form of the knurling is not limited. The oblique tongue 101 is provided with a mounting sleeve. When the oblique tongue 101 is provided with an inner oblique tongue 101b and an outer oblique tongue 101a, the mounting sleeve is provided on the outer oblique tongue 101a, and can be specifically provided as an integral structure with the outer oblique tongue 101a. The first rod segment 102a and the third rod segment 102c are interference fit with the inner hole of the mounting sleeve. The mounting sleeve is provided with a recessed portion B, which is formed by pressing after the mounting sleeve is assembled with the latch bolt rod 102. The recessed portion B is recessed into a groove C on the outer periphery of the second rod section 102b.

[0051] This riveting connection structure has high stability and compact structure. Moreover, after assembly, the gap between the inclined tongue 101 and the inclined tongue rod 102 is small, so that gap noise is not easy to occur during the opening and closing of the lock.

[0052] Continue to refer Figure 2 In this embodiment, the stopper 103 is connected to the other end (hereinafter referred to as the second end) of the inclined tongue rod 102 by riveting. Specifically:

[0053] The oblique tongue rod 102 is provided with a fourth rod segment 102d and a fifth rod segment 102e, which are arranged in sequence along the rod length direction from the second end of the oblique tongue rod 102. The outer diameter of the fourth rod segment 102d is smaller than the outer diameter of the fifth rod segment 102e, so that a riveting surface D is formed at the junction of the fifth rod segment 102e and the fourth rod segment 102d. The limiting member 103 is provided with a through hole, through which it can be rotatably sleeved on the outer periphery of the fourth rod segment 102d, and a blocking piece 106 is connected to one end of the fourth rod segment 102d away from the fifth rod segment 102e, so as to limit the limiting member 103 between the blocking piece 106 and the riveting surface D.

[0054] This type of riveting connection structure has high stability and compact structure. After assembly, the limit member 103 can rotate a certain amount relative to the oblique tongue rod 102. In this way, during the opening and closing of the lock, the limit member 103 can adaptively adjust the angle to avoid interference with the top cover 201, the bottom cover 202 or other components, resulting in problems such as poor opening and closing of the lock and loud noise.

[0055] It should be noted that the assembly method of the inclined tongue 101 and the inclined tongue rod 102 is not limited to the above-mentioned riveting connection structure, as long as the two can be limitedly connected together. The assembly method of the stopper 103 and the inclined tongue rod 102 is not limited to the above-mentioned riveting connection structure, as long as the two can be limitedly connected together.

[0056] In addition, the structure of the inclined tongue 101 is not limited. As shown in the illustrated embodiment, an outer inclined tongue 101a and an inner inclined tongue 101b can be provided. The inner inclined tongue 101b can be rotatably assembled with the outer inclined tongue 101a via an elastic pin 101c. That is to say, after assembly, the inner inclined tongue 101b can rotate to a certain extent relative to the outer inclined tongue 101a. Other types of inclined tongue structures can also be used.

[0057] like Figure 3 , this embodiment Figure 1 On the basis of the embodiment shown, a rolling body 107 is provided. The rolling body 107 is rotatably mounted on a side of the stopper 103 close to the top cover 201 and / or a side of the stopper 103 close to the bottom cover 202, so that the action part A and the top cover 201 and / or the bottom cover 202 achieve rolling friction through the rolling body 107. In this way, the friction noise is smaller during the opening and closing of the lock, which can further improve the mute effect of the lock body.

[0058] Specifically, the rolling body 107 may be a roller, a ball, etc., and the rotation direction of the rolling body 107 may be unidirectional, bidirectional, or multidirectional.

[0059] like Figure 4 In this embodiment, the oblique tongue assembly 100 is further provided with a guide member 113. The guide member 113 is fixedly arranged and cooperates with the action component A to guide the action component A to move along a predetermined path, so as to prevent the action component A from deviating from the predetermined path and causing impact noise. In the figure, the guide member 113 is a U-shaped block, and the oblique tongue rod 102 of the action component A is inserted into the U-shaped block. The inner wall of the U-shaped block cooperates with the outer peripheral surface of the oblique tongue rod 102 to guide the oblique tongue rod 102 to move along the X direction. Of course, the structure of the guide member 113 can be flexibly adjusted according to the different structures of the action component A and the different action paths.

[0060] In addition, when a guide member 113 is provided, one end of the spring pressing member 105 can abut against the guide member 113, and the other end can abut against the spring 104, so that the guide member 113 can be used to limit the position of the spring pressing member 105 and prevent the spring 104 from being stuck in the guide member 113.

[0061] like Figure 4 In this embodiment, the stopper 109 realizes the switching between the stopper position and the non-stopper position by linear movement. In this way, the stopper 109 can quickly realize the switching between the stopper position and the non-stopper position, so that the lock body responds quickly when the latch bolt 101 is reversed. In the figure, the stopper 109 moves along the Y direction, and the moving direction of the stopper 109 is perpendicular to the moving direction of the latch bolt rod 102. Of course, the stopper 109 can also realize the switching between the stopper position and the non-stopper position by other forms of movement, such as rotation, swinging, etc.

[0062] Specifically, a guide portion may be provided on one side of the stopper 109 close to the top cover 201 and / or close to the bottom cover 202, and the guide portion cooperates with the guide adapter portion of the top cover 201 or the bottom cover 202 to guide the stopper 109 to move along a predetermined straight path, thereby preventing the stopper 109 from deviating from the predetermined straight path and causing impact noise. The guide portion and the guide adapter portion may be a concave structure and a convex structure adapted thereto, or may be a slider structure and a guide rail structure adapted thereto.

[0063] Therefore, the inclined tongue assembly 100 provided in the embodiment of the present application has the advantages of low noise, good silencing effect, compact structure, high structural stability, high degree of intelligence, precise control, and fast response speed.

[0064] like Figure 6 In this embodiment, a mortise lock core 600 is provided. When the mortise lock core 600 rotates to a predetermined position, it can drive the latch bolt paddle 400 to rotate, so that the latch bolt paddle 400 drives the stopper 103 of the latch bolt assembly 100 to move along a predetermined track, thereby driving the latch bolt 101 to retract into the lock body housing 200. When the driving force of the latch bolt paddle 400 is removed, the latch bolt 101 extends out of the lock body housing 200 under the elastic force of the spring 104.

[0065] like Figure 6 In this embodiment, a clutch paddle 501, a clutch trigger 502 and a disengagement member 503 are also provided. When the mortise lock core 600 rotates to a predetermined position, the clutch paddle 500 can be toggled to rotate from the initial position, and the clutch paddle 500 can toggle the clutch trigger 502 to rotate from the initial position, and one end of the clutch trigger 502 can push the disengagement member 503 to slide from the initial position to the disengagement position. In addition, a first elastic member 504 (such as a torsion spring) is connected between the clutch paddle 501 and the lock body housing 200, and the clutch paddle 501 can be reset to the initial position under the elastic force of the first elastic member 504. A second elastic member 505 (such as 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.

[0066] like Figure 6 In this embodiment, a main paddle 701 is further provided. When the mortise lock core 600 rotates to a predetermined position, the main paddle 701 can be driven to rotate, so that the main paddle 701 drives the main lock tongue 702 to switch between an extended state and a retracted state.

[0067] Specifically, Figure 7A first positioning seat 204 and a second positioning seat 205 are fixed inside the lock body shell 200. The first positioning seat 204 is fixed to the top cover 201 by screws, and the top height of the screws is lower than the top cover 201. The second positioning seat 205 is riveted to the bottom cover 202 by rivets, and the second positioning seat 205 is provided with a semi-cylindrical structure. The oblique tongue paddle 400 and the clutch paddle 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 therewith. The mortise lock core 600 is inserted into the center of the semi-cylindrical structure of the second positioning seat 205.

[0068] like Figure 8 In this embodiment, a Hall switch assembly 800 is provided, and a Hall switch bracket 801 is arranged near the side plate 203, and is exposed outside the side plate 203 after passing through the corresponding mounting holes on the side plate 203, and the outer side surface is kept in the same plane as the outer side surface of the side plate 203. Two cross-shaped cylinders are provided on the bottom surface of the part of the Hall switch bracket 801 located inside the lock body housing 200, and the two cross-shaped cylinders are assembled into the circular holes of the bottom cover 202. The top cover 201 is provided with a pressing structure to press the middle part of the Hall switch bracket 801 to prevent the Hall switch assembly 800 from deforming and bouncing.

[0069] like Fig. 9 A Hall switch PCB 802 is mounted inside the Hall switch bracket 801 near the side plate 203, and can be snap-fitted to the Hall switch bracket 801. A wiring groove for fixing the Hall switch connection line is provided in the middle of the Hall switch bracket 801. In addition, a Hall detection element 803 is provided, which is a patch element and is patched to the bottom surface of the Hall detection PCB 802.

[0070] The above specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. The lock body latch bolt assembly is characterized by: The invention comprises an inclined tongue (101), an action component (A), and a stopper (109); the inclined tongue (101) is connected to the action component (A); the action component (A) drives the inclined tongue (101) to extend outward or retract inward relative to a lock body housing (200); the stopper (109) can switch between a stop position and a non-stop position; when the action component (A) drives the inclined tongue (101) to extend outward to a locked position, a contact surface of the action component (A) contacts a stopper surface of the stopper (109) at the stopper position to limit the inclined tongue (101) from further extending outward; a buffer pad (110) is provided on the contact surface of the action component (A) and / or the stopper surface of the stopper (109); The action component (A) comprises an inclined tongue rod (102) and a limiting member (103), the abutting surface being arranged on the limiting member (103), the inclined tongue (101) being provided with a mounting sleeve, one end of the inclined tongue rod (102) being located in the inner hole of the mounting sleeve, the one end of the inclined tongue rod (102) being provided with a groove (C), the mounting sleeve being provided with a recessed portion (B), the recessed portion (B) being recessed in the groove (C), so that the inclined tongue (101) and the inclined tongue (101) are in contact with each other. One end of the rod (102) is riveted, the limiting member (103) is provided with a through hole, and is rotatably mounted on the outer periphery of the other end of the oblique tongue rod (102) through the through hole, the other end of the oblique tongue rod (102) is provided with a riveted surface (D) and is connected to a baffle (106), the limiting member (103) is limited between the baffle (106) and the riveted surface (D), so that the limiting member (103) and the other end of the oblique tongue rod (102) are riveted; The inclined bolt assembly (100) comprises a trigger member (108), a first switch (111) and a second switch (112); the trigger member (108) is linked to the action member (A); the first switch (111) and the second switch (112) are arranged in sequence along an action path of the action member (A); when the action member (A) drives the inclined bolt (101) to extend outward to a locked position, the trigger member (108) triggers the first switch (111); and when the action member (A) drives the inclined bolt (101) to retract inward to an unlocked position, the trigger member (108) triggers the second switch (112).

2. The lock body latch bolt assembly according to claim 1, characterized in that: The inclined tongue assembly (100) comprises a rolling body (107), and the rolling body (107) is rotatably mounted on a side of the action component (A) contacting the top cover (201) and / or a side of the action component (A) contacting the bottom cover (202), so that the action component (A) and the top cover (201) and / or the bottom cover (202) achieve rolling friction through the rolling body (107).

3. The lock body latch bolt assembly according to claim 1, characterized in that: The inclined tongue assembly (100) further comprises a guide member (113), wherein the guide member (113) is fixedly arranged and cooperates with the action component (A) to guide the action component (A) to move along a predetermined path.

4. The lock body latch bolt assembly according to claim 1, characterized in that: The stop member (109) achieves switching between the stop position and the non-stop position through linear movement.

5. The lock body latch bolt assembly according to claim 4, characterized in that: A guide portion is provided on one side of the stopper (109) close to the top cover (201) and / or on one side close to the bottom cover (202); the guide portion cooperates with a guide adapter portion of the top cover (201) or the bottom cover (202) to guide the stopper (109) to move along a predetermined straight path.

6. The lock body latch bolt assembly according to any one of claims 1 to 5, characterized in that: The inclined tongue assembly (100) further comprises a spring (104) and a spring pressing member (105); the spring (104) is sleeved on the outer periphery of the inclined tongue rod (102), and the spring (104) is limited between the inclined tongue (101) and the spring pressing member (105).

7. The lock body latch bolt assembly according to claim 6, characterized in that: A first rod segment (102a), a second rod segment (102b) and a third rod segment (102c) are sequentially arranged along the length direction of the rod from one end of the oblique tongue rod (102); the outer diameter of the second rod segment (102b) is smaller than the outer diameters of the first rod segment (102a) and the second rod segment (102b), so that the groove (C) is formed on the outer periphery of the second rod segment (102b); knurling is arranged on the outer peripheries of the first rod segment (102a) and the third rod segment; the first rod segment (102a) and the third rod segment (102c) are interference fit with the inner hole of the mounting sleeve.

8. The lock body latch bolt assembly according to claim 7, characterized in that: A fourth rod segment (102d) and a fifth rod segment (102e) are sequentially arranged along the rod length direction from the tail end of the oblique tongue rod (102); the outer diameter of the fourth rod segment (102d) is smaller than the outer diameter of the fifth rod segment (102e), so that the riveted surface (D) is formed at the junction of the fifth rod segment (102e) and the fourth rod segment (102d); the limiting member (103) is rotatably mounted on the outer periphery of the fourth rod segment (102d); and the blocking piece (106) is connected to an end of the fourth rod segment (102d) away from the fifth rod segment (102e).

9. The lock body is characterized in that: The lock body comprises the latch bolt assembly (100) according to any one of claims 1 to 8.

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