Spring bolt mechanism, lock and intelligent door control system

Abstract

The utility model discloses a spring bolt mechanism, a lock and an intelligent door control system, and relates to the field of lock assembly. The spring bolt mechanism comprises a spring bolt assembly, an operation assembly and an unlocking assembly. According to the spring bolt mechanism provided by the utility model, the unlocking assembly is linked through the sliding movement of the connecting piece, so that the locking sliding block slides away from the spring bolt part, the limiting part of the locking sliding block and the butt joint part of the spring bolt part are unlocked, and the spring bolt part can flexibly rotate relative to the bolt part; the purposes of auxiliary unlocking and flexible unlocking are achieved; and if the spring bolt assembly and the external door body need to return to the locking state, the sliding acting force of the connecting piece can be removed, the locking sliding block slides towards the spring bolt part under the elastic action of the locking elastic piece, and the limiting part and the butt joint part can be reset and locked. According to the scheme, connection and unlocking between the spring bolt part and the external door body can be effectively assisted, and the operation process is more labor-saving and more convenient for a user and intelligent door control.

Description

Technical Field

[0001] This utility model relates to the field of lock assembly, specifically to a latch mechanism, a lock, and an intelligent door control system. Background Technology

[0002] Compared to traditional mechanical locks, intelligent door control systems can perform real-time status monitoring, remote authorization for unlocking, and alarms for abnormal conditions, meeting users' actual needs and achieving more intelligent and convenient maintenance and management, making them highly practical.

[0003] Structurally, smart door control locks consist of a bolt and a latch. The bolt and latch are connected, allowing the bolt to move the latch into or out of the door to open or close the lock. The latch and door body work together to ensure the door's effective position. However, during actual opening, the latch and door body are prone to friction and pressure, requiring significant force to open the door. This results in poor flexibility and fails to meet the needs of smart door control systems. Utility Model Content

[0004] To address the technical problems mentioned above, this utility model provides a locking tongue mechanism, comprising:

[0005] A latch assembly is adapted to be movably connected to a lock box; the latch assembly has a latch portion and a pin portion, the latch portion and the pin portion are rotatably configured, the latch portion has a mating portion, the mating portion is disposed in the area of ​​the latch portion adjacent to the pin portion; the latch assembly includes a locking elastic element, one end of the locking elastic element is adapted to be fixed to the lock box;

[0006] The operating component includes a coupling member adapted to slide with the lock box;

[0007] The unlocking component includes a locking slider that is slidably disposed with the pin portion. The locking slider has a limiting portion that is conformally fitted with the mating portion.

[0008] Under the action of external force, the connecting member has the ability to drive the unlocking component to move, compress the locking elastic member, and make the locking slider slide away from the locking tongue portion, so as to unlock the limiting part and the docking part.

[0009] The other end of the locking elastic element is connected to the locking slider, so that the locking slider slides toward the locking tongue portion with elastic force, so that the limiting part and the docking part can be reset and locked.

[0010] As a preferred technical solution, the unlocking assembly further includes an unlocking paddle, an unlocking lever, and an unlocking lever. The unlocking paddle and the connecting member are slidably connected, and the unlocking paddle and the unlocking lever are movably connected. The unlocking lever is adapted to be rotatably configured within the lock housing. One end of the unlocking lever is slidably connected to the unlocking lever, and the other end of the unlocking lever is slidably connected to the latch portion. The unlocking lever and the locking slider are driven together. The connecting member is used to slide and drive the unlocking paddle, so that the unlocking paddle drives the unlocking lever, thereby acting on the unlocking lever to drive the locking slider to slide away from the latch portion.

[0011] As a preferred technical solution, the connecting member is provided with a connecting groove, and the unlocking assembly further includes a first moving member, a second moving member, a movable member, and a rotating member. The first moving member and the second moving member are spaced apart. The first moving member is connected to the end of the unlocking lever away from the unlocking lever, and the second moving member is connected to the middle section of the unlocking lever. The first moving member and the second moving member are slidably disposed in the connecting groove. The movable member is movably disposed at the junction of the unlocking lever and the unlocking lever. The rotating member is adapted to connect with the lock box, and the rotating member is rotatably connected with the unlocking lever.

[0012] The unlocking lever is provided with a rotating part and a force transmitting part, which are spaced apart. The rotating part is adapted to rotate and connect with the lock box. The locking slider is provided with a connecting part, which rotates and connects with the force transmitting part. The rotation axis of the rotating part and the rotation axis of the rotating component are parallel and spaced apart.

[0013] As a preferred technical solution, the connecting groove includes a first groove segment and a second groove segment that are connected to each other. The first groove segment extends along the sliding direction of the connecting member, and the extension direction of the first groove segment intersects with the extension direction of the second groove segment; and / or

[0014] The unlocking lever has an adjustment groove, the movable member is slidably disposed within the adjustment groove, and the unlocking lever and the unlocking lever are slidably and rotatably disposed with the movable member through the adjustment groove; and / or

[0015] The unlocking lever is further provided with a first rolling end and a second rolling end. The first rolling end and the pin portion are rolled abutting each other, and the second rolling end and the unlocking lever are rolled abutting each other. The unlocking lever is provided with an extension edge to contact the second rolling end.

[0016] As a preferred technical solution, the connecting member is provided with an upper abutment portion and an assembly portion. The upper abutment portion is adapted to abut against the inner wall of the lock box, and the upper abutment portion is bent away from the sliding direction of the connecting member. The assembly portion is adapted to be located on the outside of the lock box; and / or

[0017] The connector is provided with a first guide groove and a second guide groove that are spaced apart from each other. Each guide groove extends along the sliding direction of the connector. The operating component also includes a first positioning pin and a second positioning pin. Each positioning pin is adapted to be fixedly connected to the lock box. The first guide groove is slidably connected to the first positioning pin, and the second guide groove is slidably connected to the second positioning pin. The guide stroke of the first guide groove and the guide stroke of the second guide groove are the same.

[0018] As a preferred technical solution, the locking tongue portion includes a first locking tongue, the docking portion is configured to be disposed on the side of the first locking tongue facing the locking slider, and the limiting portion is configured to be disposed on the side of the locking slider facing the first locking tongue;

[0019] The pin portion includes a mounting base and a pin that are fixedly connected. The first locking tongue and the mounting base are rotatably connected. The locking elastic element is sleeved on the pin, and the locking slider is sleeved and slides on the pin.

[0020] As a preferred technical solution, the latch assembly further includes a second latch and a retaining pin. The first latch and the second latch are connected and mounted on the mounting base via the retaining pin. The mounting base has a pivot hole for assembling the retaining pin. The second latch is provided with a rotating part, which is at least capable of abutting against the mounting base; and / or

[0021] The mounting base is provided with a contact edge to slide against the unlocking lever of the unlocking component; and / or

[0022] The mounting base is provided with at least one protrusion, the protrusion being adapted to slide in contact with the lock box; and / or

[0023] The pin portion further includes a positioning plate adapted to be fixed inside the lock housing. One end of the locking elastic member elastically abuts against the end face of the positioning plate facing the latch portion, and the other end of the locking elastic member elastically abuts against the end face of the locking slider away from the latch portion; and / or

[0024] The locking slider is provided with a support part, a recessed part, and a through part. When the limiting part and the docking part are locked, the support part is abutted against the rotating part of the second locking tongue. The recessed part is used to assemble the mounting base, and the through part is slidably connected to the pin.

[0025] As a preferred technical solution, the pin portion further includes a limiting clip, and the pin rod of the pin portion is recessed with a slot, the limiting clip being engaged in the slot, the slot being located on the path of the locking slider away from the locking tongue portion; and / or

[0026] The pin portion further includes a positioning shaft, and the pin of the pin portion has a connecting hole for connecting the positioning shaft; the connecting member has a firing part, and the latch mechanism further includes an opening component, the opening component includes a trigger plate and a limiting member, the trigger plate and the positioning shaft are movably arranged, the trigger plate and the limiting member are rotatably arranged, the limiting member is adapted to rotate and connect with the lock box, the trigger plate is arranged on the sliding path of the firing part along the connecting member toward the opening component, the firing part is adapted to contact and act on the trigger plate to link the displacement of the positioning shaft, thereby driving the latch portion and the pin portion to move; the sliding displacement of the firing part on the connecting member to the trigger plate is greater than the unlocking displacement of the locking slider moving away from the latch portion.

[0027] This utility model also provides a lock, including a lock box and the aforementioned locking tongue mechanism.

[0028] This utility model also provides an intelligent door control system, including the above-mentioned latch mechanism or lock.

[0029] The technical solution provided by this utility model has the following advantages:

[0030] 1. The locking tongue mechanism provided by this utility model includes a locking tongue assembly, an operating assembly, and an unlocking assembly. The locking tongue assembly is adapted to be movably connected to a lock box. The locking tongue assembly has a locking tongue portion and a pin portion, which are rotatably configured. The locking tongue portion has a mating portion, which is located in the area adjacent to the pin portion. The operating assembly includes a connecting member, which is adapted to be slidably configured with the lock box. The unlocking assembly includes a locking slider, which is slidably configured with the pin portion. The locking slider has a limiting portion, and the limiting portion and the mating portion can be conformally fitted together. Under the action of external force, the connecting member has a moving state in which it drives the unlocking assembly to move along a first direction, compresses the locking elastic member, and causes the locking slider to slide away from the locking tongue portion, so that the limiting portion and the mating portion are unlocked. The locking tongue assembly includes a locking elastic member, one end of which is adapted to be fixed with the lock box, and the other end of which is connected to the locking slider. The locking slider slides towards the locking tongue portion with elastic force, so that the limiting portion and the mating portion can be reset and locked together.

[0031] In this locking mechanism, during the locking phase where the locking tongue assembly is engaged with the external door, the limiting part and the mating part are locked together, and the locking tongue part and the bolt part are relatively fixedly configured. During the opening phase, the locking tongue part and the external door will rub and squeeze against each other. Through the linkage of the operating component and the unlocking component, the locking tongue part can rotate relative to the bolt part, making the unlocking displacement of the locking tongue part more effortless and flexible. Specifically, through the sliding movement of the connecting part, the unlocking component is linked, causing the locking slider to slide away from the locking tongue part, so that the limiting part of the locking slider and the mating part of the locking tongue part are unlocked, allowing the locking tongue part to rotate flexibly relative to the bolt part. By adding the operating component and the unlocking component, the purpose of assisted unlocking and flexible unlocking is achieved. If it is necessary to return the locking tongue assembly and the external door body to the locked state, the sliding force of the connecting part can be removed, and the locking elastic element will elastically act to slide the locking slider towards the locking tongue part, so that the limiting part and the mating part can be reset and locked together. This solution can effectively assist in the connection and unlocking between the latch and the external door body, and its operation is more effortless and convenient for users and smart door control.

[0032] 2. The locking tongue mechanism provided by this utility model includes an unlocking paddle, an unlocking lever, and an unlocking lever. The unlocking paddle and the connecting member are slidably connected. The unlocking paddle and the unlocking lever are movably connected. The unlocking lever is adapted to be rotatably configured in the lock box. One end of the unlocking lever is slidably connected to the unlocking lever, and the other end of the unlocking lever is slidably connected to the pin part. The unlocking lever and the locking slider are connected in a transmission manner. The connecting member is used to slide and transmit the unlocking paddle, so that the unlocking paddle drives the unlocking lever, thereby acting on the unlocking lever to drive the locking slider to slide away from the locking tongue part.

[0033] The latch mechanism of this structure adjusts the connection position of the unlocking lever and the unlocking pin relative to each other through the sliding movement of the connecting member, causing the unlocking pin to rotate in the lock box. During the rotation stroke of the unlocking pin, it slides against the unlocking lever, causing the unlocking lever to drive the locking slider to slide away from the latch part, thus assisting in the rotation of the latch and the bolt. When the door is opened, the flexible rotation of the latch part reduces the frictional and squeezing force between the latch and the door. After the sliding force of the connecting member is removed, the locking slider is reset by the action of the locking elastic element, and correspondingly, the entire unlocking assembly is reset. This structural solution ensures stable and reliable transmission motion for assisting unlocking, guaranteeing the relative fixation of the latch and the bolt when the door is locked, and the effective working position of the relative rotation of the latch and the bolt when the door is open.

[0034] 3. The latch mechanism provided by this utility model includes a positioning shaft in the pin part, and a connecting hole on the pin rod of the pin part to connect the positioning shaft; a firing part is provided on the connecting member, and the latch mechanism also includes an opening component, which includes a trigger plate and a limiting member. The trigger plate and the positioning shaft are movably arranged, and the trigger plate and the limiting member are rotatably arranged. The limiting member is adapted to rotate and connect with the lock box. The trigger plate is arranged on the sliding path of the firing part toward the opening component along with the connecting member. The firing part is adapted to contact and act on the trigger plate to move the positioning shaft in conjunction with the displacement, thereby driving the latch part and the pin part to move.

[0035] The latch mechanism of this structure moves closer to the opening assembly via the sliding of the connecting member. The firing part then contacts and actuates the trigger plate. One end of the trigger plate rotates into contact with the limiting member, while the other end is movably connected to the positioning shaft. This causes the trigger plate to rotate around the limiting member. The trigger plate, in conjunction with the positioning shaft and the pin of the latch portion, moves downwards vertically, causing the latch and latch portions to move together, thus opening the door. Specifically, the sliding displacement from the firing part to the trigger plate on the connecting member is greater than the unlocking displacement of the locking slider away from the latch portion. This results in a two-stage displacement of the connecting member. In the first stage, the locking slider unlocks the latch portion. In the second stage, the opening assembly is activated, causing the latch and latch portions to move into the lock box, opening the door. This design facilitates smooth structural operation and makes door opening easier. Attached Figure Description

[0036] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 An exploded view of the locking tongue mechanism provided by this utility model;

[0038] Figure 2 A three-dimensional schematic diagram of the locking tongue mechanism provided by this utility model;

[0039] Figure 3 A three-dimensional schematic diagram of the internal structure of the locking tongue mechanism provided by this utility model;

[0040] Figure 4 This is a schematic diagram of the internal structure of the locking tongue mechanism provided by this utility model;

[0041] Figure 5 A schematic diagram of the locking tongue assembly and unlocking assembly in the locking tongue mechanism provided by this utility model;

[0042] Figure 6 A schematic diagram of the pin portion and unlocking component in the locking tongue mechanism provided by this utility model;

[0043] Figure 7 A schematic diagram of the locking tongue portion in the locking tongue mechanism provided by this utility model;

[0044] Figure 8 A diagram showing the locking engagement of the locking tongue assembly and the locking slider in the locking tongue mechanism provided by this utility model;

[0045] Figure 9 A schematic diagram illustrating the unlocking of the locking tongue assembly and the locking slider in the locking tongue mechanism provided by this utility model;

[0046] Figure 10 A schematic diagram of the rotation of the latch assembly in the latch mechanism provided by this utility model;

[0047] Figure 11 A schematic diagram of the pin portion in the locking tongue mechanism provided by this utility model;

[0048] Figure 12 A schematic diagram of the locking tongue assembly and unlocking lever in the locking tongue mechanism provided by this utility model;

[0049] Figure 13 A three-dimensional schematic diagram of the locking tongue assembly and the unlocking lever in the locking tongue mechanism provided by this utility model;

[0050] Figure 14 A schematic diagram of the connecting component in the locking tongue mechanism provided by this utility model;

[0051] Figure 15 A schematic diagram of the unlocking component in the locking tongue mechanism provided by this utility model;

[0052] Figure 16 A schematic diagram of the locking slider in the locking tongue mechanism provided by this utility model;

[0053] Explanation of reference numerals in the attached figures:

[0054] 1-Lock box; 11-First mating plate; 111-Transition groove; 112-First constraint groove; 113-First positioning groove; 12-Second mating plate; 121-Second constraint groove; 122-Second positioning groove; 13-Lock head panel; 14-Bracket;

[0055] 2-Lock tongue assembly; 21-First lock tongue; 211-First body; 212-Mating part; 22-Second lock tongue; 221-Second body; 222-Rotating part; 23-Mounting base; 231-Pivot hole; 232-Contact edge; 233-Protrusion; 24-Pin; 241-Slot; 242-Connecting hole; 25-Fixing pin; 26-Positioning plate; 27-Limiting clip; 28-Positioning shaft;

[0056] 3-Operating component; 31-Connecting part; 311-Connecting groove; 3111-First groove segment; 3112-Second groove segment; 312-Upper abutment part; 313-Firing part; 314-Assembly part; 315-First guide groove; 316-Second guide groove; 32-First positioning pin; 33-Second positioning pin;

[0057] 4-Unlocking component; 41-Unlocking lever; 411-Adjusting groove; 42-Unlocking lever; 421-Extension edge; 43-Unlocking lever; 431-Rotating part; 432-Force transmission part; 433-First rolling end; 434-Second rolling end; 44-Locking slider; 441-Connecting part; 442-Limiting part; 443-Supporting part; 444-Recessed part; 445-Through part; 45-First moving component; 46-Second moving component; 47-Modible component; 48-Rotating component;

[0058] 51-Trigger plate; 52-Limiting component. Detailed Implementation

[0059] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that simultaneously satisfies A and B.

[0061] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0062] Example

[0063] This embodiment provides a locking tongue mechanism, which aims to solve the technical defects of the locking tongue and the door body being prone to mutual friction and squeezing, resulting in the need for sufficient force to open the door, poor flexibility, and inability to meet the usage requirements of intelligent door control.

[0064] like Figures 1 to 16As shown, a locking mechanism includes a locking tongue assembly 2, an operating assembly 3, and an unlocking assembly 4. The locking tongue assembly 2 is adapted to be movably connected to a lock housing 1. The locking tongue assembly 2 has a locking tongue portion and a latch portion, which are rotatably configured. The locking tongue portion has a mating portion 212, which is disposed in the area of ​​the locking tongue portion adjacent to the latch portion. The operating assembly 3 includes a connecting member 31, which is adapted to be slidably configured with the lock housing 1. The unlocking assembly 4 includes a locking slider 44, which is slidably configured with the latch portion. The locking slider 44 has a limiting portion 442. 42 and docking part 212 can be fitted into each other in a conformal manner; wherein, under the action of external force, the connecting member 31 has a moving state in which it drives the unlocking component 4 to move along the first direction, compresses the locking elastic member (not shown in the figure), and makes the locking slider 44 slide away from the lock tongue part, so as to unlock the limiting part 442 and the docking part 212; the lock tongue component 2 includes a locking elastic member, one end of which is adapted to be fixed to the lock box 1, and the other end of which is connected to the locking slider 44, so as to elastically make the locking slider 44 slide toward the lock tongue part, so that the limiting part 442 and the docking part 212 can be reset and locked together.

[0065] In this embodiment, the locking mechanism, during the locking phase where the locking tongue assembly 2 is engaged with the external door, has the limiting part 442 and the docking part 212 locked together, and the locking tongue and the bolt are relatively fixedly configured. During the opening phase, the locking tongue and the external door will rub and press against each other. Through the linkage of the operating component 3 and the unlocking component 4, the locking tongue can rotate relative to the bolt, making the unlocking displacement of the locking tongue more effortless and flexible. Specifically, through the sliding movement of the connecting member 31, the unlocking component 4 is linked to lock the door. The sliding block 44 slides away from the latch portion, thereby unlocking the limiting part 442 of the sliding block 44 and the mating part 212 of the latch portion. This allows the latch portion to rotate flexibly relative to the bolt portion. By adding the operating component 3 and the unlocking component 4, the purpose of assisted unlocking and flexible unlocking is achieved. If it is necessary to return the latch component 2 and the external door to the locked state, the sliding force of the connecting member 31 can be removed. The locking elastic member elastically acts to slide the sliding block 44 toward the latch portion, allowing the limiting part 442 and the mating part 212 to reset and lock together. This solution can effectively assist in unlocking the connection between the latch portion and the external door, and its operation process is more labor-saving and convenient for users and intelligent door control.

[0066] In a specific implementation, the sliding movement of the connecting member 31 can be driven by an external actuation mechanism, such as an electric or pneumatic drive, to automatically drive the linkage, thereby moving the unlocking component 4 and causing the locking slider 44 to move away from the latch portion. For example, a rack is fixedly installed on the connecting member 31, and a gear meshing with the rack is installed inside the lock box 1. The gear is driven by a micro motor, causing the rack to drive the sliding of the linkage. To remove the sliding force of the connecting member 31, the sliding force can be slowly removed, allowing the locking elastic element to elastically act on the locking slider 44 and other structures to reset; or the connecting member 31 can be slowly slid along a second direction, causing the connecting member 31 and the unlocking component 4 to slowly reset. The first and second directions are opposite, and the first direction can be specifically set as... Figure 3 The direction of altitude is downward.

[0067] Regarding the structural design embodiment of the operation component 3 and the unlocking component 4:

[0068] For example, in some implementations, such as Figures 4 to 6 As shown, the unlocking assembly 4 also includes an unlocking paddle 41, an unlocking lever 42, and an unlocking lever 43. The unlocking paddle 41 and the connecting member 31 are slidably connected. The unlocking paddle 41 and the unlocking lever 42 are movably connected. The unlocking lever 43 is adapted to be rotatably configured in the lock box 1. One end of the unlocking lever 43 is slidably connected to the unlocking lever 42, and the other end of the unlocking lever 43 is slidably connected to the latch portion. The unlocking lever 43 and the locking slider 44 are connected in a transmission manner. The connecting member 31 is used to slide and drive the unlocking paddle 41, so that the unlocking paddle 41 drives the unlocking lever 42, thereby acting on the unlocking lever 43 to drive the locking slider 44 to slide away from the latch portion.

[0069] By sliding the connecting piece 31, the connection position between the unlocking lever 41 and the unlocking rod 42 is adjusted, causing the unlocking rod 42 to rotate in the lock box 1. During the rotation stroke of the unlocking rod 42, it can slide against the unlocking lever 43, causing the unlocking lever 43 to drive the locking slider 44 to slide away from the bolt, thus assisting in the rotation of the bolt and the latch. When the door is opened, the flexible rotation of the bolt can reduce the frictional and squeezing force between the bolt and the door. After the sliding force of the connecting piece 31 is removed, the locking slider 44 is reset by the action of the locking elastic element, and correspondingly, the unlocking assembly 4 is reset as a whole. This structural scheme ensures that the transmission motion for assisting unlocking is stable and reliable, and can guarantee the effective working position of the bolt and the latch when the door is locked and the relative rotation of the bolt and the latch when the door is open.

[0070] For example, in some implementations, such as Figure 6 and Figure 14As shown, the connecting member 31 is provided with a connecting groove 311. The unlocking assembly 4 also includes a first moving member 45, a second moving member 46, a movable member 47, and a rotating member 48. The first moving member 45 and the second moving member 46 are arranged at intervals. The first moving member 45 is connected to the end of the unlocking lever 41 away from the unlocking lever 42, and the second moving member 46 is connected to the middle section of the unlocking lever 41. The first moving member 45 and the second moving member 46 are respectively slidably arranged in the connecting groove 311. The movable member 47 is movably arranged at the junction of the unlocking lever 41 and the unlocking lever 42. The rotating member 48 is adapted to connect with the lock box 1, and the rotating member 48 and the unlocking lever 43 are rotatably connected. During the sliding motion of the connecting member 31, the first moving member 45 and the second moving member 46 within it are limited and guided by the connecting groove 311 to move, thereby driving the unlocking paddle 41 to translate. The unlocking paddle 41 and the unlocking lever 42 are connected by the movable member 47, so that the translation of the unlocking paddle 41 drives the unlocking lever 42 to rotate around the rotating member 48, thereby causing the unlocking lever 43 to rotate, thereby causing the unlocking lever 43 to transmit force to the locking slider 44 to slide away from the locking tongue.

[0071] For example, in some implementations, such as Figure 13 , Figure 15 and Figure 16 As shown, the unlocking lever 43 is provided with a rotating part 431 and a force transmitting part 432, which are spaced apart. The rotating part 431 is adapted to rotatably connect with the lock box 1. The locking slider 44 is provided with a connecting part 441, which rotatably connects with the force transmitting part 432. The rotation axis of the rotating part 431 and the rotation axis of the rotating component 48 are parallel and spaced apart. The rotation axis between the unlocking lever 43 and the lock box 1 is established by the rotating part 431, and the rotation axis between the unlocking lever 43 and the locking slider 44 is established by the force transmitting part 432.

[0072] For example, in some implementations, such as Figure 14 As shown, the connecting groove 311 includes a first groove segment 3111 and a second groove segment 3112 that are connected to each other. The first groove segment 3111 extends along the sliding direction of the connecting member 31, and the extension direction of the first groove segment 3111 intersects with the extension direction of the second groove segment 3112. When the door is locked, the first moving member 45 abuts against the end of the second groove segment 3112 away from the first groove segment 3111, and the second moving member 46 abuts against the inside of the second groove segment 3112. When the connecting member 31 slides along the first direction, the first moving member 45 gradually slides from the second groove segment 3112 to the second groove segment 3112, and the second moving member 46 gradually slides towards the end of the first groove segment 3111 away from the second groove segment 3112, causing the unlocking lever 41 to translate within space.

[0073] For example, in some embodiments, the first moving member 45 and the second moving member 46 can be fixedly connected or rotatably connected to the unlocking lever 41. Preferably, they are rotatably connected. For example, the first moving member 45 and the second moving member 46 can be configured as a combination structure of a guide post and a bearing. The bearing is sleeved on the guide post and slides against the connecting groove 311. This configuration helps to make the translational movement of the unlocking lever 41 smoother.

[0074] For example, in some implementations, such as Figure 15 As shown, the unlocking lever 41 has an adjustment groove 411, and the movable component 47 is slidably disposed within the adjustment groove 411. The unlocking lever 41 and the unlocking rod 42 are slidably and rotatably disposed through the adjustment groove 411 and the movable component 47. Through the connection between the adjustment groove 411 and the movable component 47, the translational movement of the unlocking lever 41 can flexibly drive the unlocking rod 42 to rotate, thus preventing the structure from jamming.

[0075] For example, in some embodiments, the movable component 47 is configured as a combination structure of a guide post and a bearing, with the bearing sleeved on the guide post and slidingly abutting against the adjustment groove 411, which facilitates smooth and even movement of the unlocking lever 41 and the unlocking lever 42.

[0076] For example, in some implementations, such as Figure 5 , Figure 13 and Figure 15 As shown, the unlocking lever 43 is also provided with a first rolling end 433 and a second rolling end 434. The first rolling end 433 is rolled abutting against the pin portion, and the second rolling end 434 is rolled abutting against the unlocking lever 42. The unlocking lever 42 has an extension edge 421 to contact the second rolling end 434. This arrangement sets the abutment between the unlocking lever 43 and the pin portion, and the abutment between the unlocking lever 43 and the unlocking lever 42, in a rolling manner. This facilitates smooth contact between the structures, stable force transmission, and reduces structural wear, thus extending service life.

[0077] In one specific embodiment, the first rolling end 433 and the second rolling end 434 can be respectively configured as a combination structure of a connecting column and a bearing / rolling wheel, with the connecting column and the unlocking lever 43 fixedly connected, and the bearing / rolling wheel sleeved on the connecting column.

[0078] For example, in some implementations, such as Figure 14As shown, the connecting member 31 is provided with an upper abutment portion 312 and an assembly portion 314. The upper abutment portion 312 is adapted to abut against the inner wall of the lock box 1. The upper abutment portion 312 is bent off from the sliding direction of the connecting member 31, which is conducive to forming reliable contact with the inner wall of the lock box 1 when the linkage is slidably reset, thereby improving the stability of the end of the reset sliding stroke of the connecting member 31. The assembly portion 314 is adapted to be disposed outside the lock box 1. Specifically, the assembly portion 314 can be used to connect an actuation mechanism for externally driving the linkage to slide. The actuation mechanism is adapted to drive the linkage to slide along the first direction and the second direction.

[0079] For example, in some implementations, such as Figure 3 and Figure 14 As shown, the connecting member 31 is constructed with a first guide groove 315 and a second guide groove 316 arranged at intervals. Each guide groove extends along the sliding direction of the connecting member 31. The operating component 3 also includes a first positioning pin 32 and a second positioning pin 33. Either positioning pin is adapted to be fixedly connected to the lock box 1. The first guide groove 315 is slidably connected to the first positioning pin 32, and the second guide groove 316 is slidably connected to the second positioning pin 33. The guiding stroke of the first guide groove 315 is the same as that of the second guide groove 316. This arrangement helps to enhance the motion accuracy of the sliding movement of the connecting member 31, thereby improving the accuracy of the movement of the linkage unlocking component 4 and ensuring the locking and unlocking working positions of the locking slider 44 and the locking tongue.

[0080] In this embodiment, as Figure 3 and Figure 7 As shown, the latch portion includes a first latch 21, a mating portion 212 is configured on the side of the first latch 21 facing the locking slider 44, and a limiting portion 442 is configured on the side of the locking slider 44 facing the first latch 21. In a specific structural embodiment, the mating portion 212 can be configured as two or more combined curved surfaces, two or more combined planes, or a combination of curved surfaces and planes, wherein the limiting portion 442 and the mating portion 212 are conformally fitted. In terms of design, the conformal wall forms of the limiting portion 442 and the mating portion 212, which ensure that the locking slider 44 abuts and is fixed to the first latch 21, are all within the protection scope of this embodiment.

[0081] For the structural design embodiment of the latch assembly 2:

[0082] For example, in some implementations, such as Figure 6 , Figure 12 and Figure 13 As shown, the latch portion includes a mounting base 23 and a pin 24 that are fixedly connected. The first locking tongue 21 is rotatably connected to the mounting base 23. The locking elastic element is sleeved on the pin 24, and the locking slider 44 is sleeved and slides on the pin 24. The mounting base 23 is used to rotatably mount the first locking tongue 21, and the pin 24 serves as the mounting base for the locking slider 44 and the locking elastic element.

[0083] For example, in some implementations, such as Figure 3 , Figure 7 as well as Figure 11 As shown, the latch assembly 2 also includes a second latch 22 and a fixing pin 25. The first latch 21 and the second latch 22 are connected and mounted on the mounting base 23 by the fixing pin 25. The mounting base 23 is provided with a pivot hole 231 for mounting the fixing pin 25. The second latch 22 is provided with a rotating part 222, which can at least abut against the mounting base 23. The mounting base 23 and the locking slider 44 can jointly contact the rotating part 222 that supports the second latch 22. When the latch is in the locked working position, and when the linkage and unlocking assembly 4 are linked to unlock the locking slider 44 to lock the latch, the rotating part 222 can abut against the mounting base 23. On the one hand, this ensures the stability of force transmission when the latch is in the locked state and ensures structural strength. On the other hand, during the assisted unlocking stage, the rotating part 222 rotates against the mounting base 23 to rotate stably and flexibly. The rotating part 222 can be configured as a cylindrical curved surface with the same axis of rotation as the second latch 22.

[0084] For example, in some implementations, such as Figure 7 As shown, the first locking tongue 21 includes a first body 211 and a docking part 212. The first body 211 is configured as a slanted tongue structure, and the docking part 212 is disposed in the end face area of ​​the slanted tongue structure adjacent to the locking slider 44. The docking part 212 is configured as a locking docking surface to be matched with the limiting part 442 of the locking slider 44.

[0085] For example, in some implementations, such as Figure 7 As shown, the second locking tongue 22 includes a second body 221 and a rotating part 222. The second body 221 is configured as a slanted tongue structure, and the rotating part 222 is disposed in the end face area of ​​the slanted tongue structure adjacent to the locking slider 44. The rotating part 222 is configured as a curved surface structure.

[0086] For example, in some embodiments, the first locking tongue 21 and the second locking tongue 22 are rotatably mounted on the mounting base 23 by a fixing pin 25. Specifically, the first locking tongue 21 is rotatably mounted to the fixing pin 25, the second locking tongue 22 is rotatably mounted to the fixing pin 25, and the fixing pin 25 is rotatably mounted to the mounting base 23; or, the first locking tongue 21 is rotatably mounted to the fixing pin 25, the second locking tongue 22 is fixedly connected to the fixing pin 25, and the fixing pin 25 is rotatably mounted to the mounting base 23; or, the second locking tongue 22 is rotatably mounted to the fixing pin 25, the first locking tongue 21 is fixedly connected to the fixing pin 25, and the fixing pin 25 is rotatably mounted to the mounting base 23.

[0087] For example, in some implementations, such as Figure 6 and Figure 11As shown, the mounting base 23 is provided with a contact edge 232 for sliding contact with the unlocking lever 43. Preferably, the contact edge 232 rolls against the first rolling end 433 of the unlocking lever 43.

[0088] For example, in some implementations, such as Figure 11 As shown, the mounting base 23 has one or more protrusions 233, which are adapted to slide into contact with the lock box 1. For example, there are two protrusions 233, which are arranged opposite each other on both sides of the mounting base 23. The lock box 1 has a first constraint groove 112 and a second constraint groove 121, which are correspondingly slidably limited to the two protrusions 233.

[0089] For example, in some implementations, such as Figure 5 As shown, the latch portion also includes a positioning plate 26, which is adapted to be fixed inside the lock housing 1. One end of the locking elastic member elastically abuts against the end face of the positioning plate 26 facing the latch portion, and the other end of the locking elastic member elastically abuts against the end face of the locking slider 44 away from the latch portion. The positioning plate 26 serves as the mounting base for the locking elastic member and can be used to reset the entire latch mechanism, so that the operating component 3 and the unlocking component 4 can repeatedly switch between locking and unlocking actions on the latch portion.

[0090] For example, in some implementations, such as Figure 16 As shown, the locking slider 44 is provided with a support part 443, a recessed part 444 and a through part 445. When the limiting part 442 and the docking part 212 are locked, the support part 443 is abutted against the rotating part 222 of the second locking tongue 22. The recessed part 444 is used to assemble the mounting base 23 to strengthen the compact structure. The through part 445 is slidably connected to the pin 24.

[0091] For example, in some implementations, such as Figure 5 and Figure 11 As shown, the pin portion also includes a limiting clip 27. A groove 241 is recessed on the pin 24, and the limiting clip 27 is engaged within the groove 241. The groove 241 is located on the path of the locking slider 44 away from the locking tongue. The limiting clip 27 is used to limit the sliding travel of the locking slider 44 on the pin 24.

[0092] For example, in some implementations, such as Figure 3 , Figure 5 as well as Figure 14As shown, the latch part also includes a positioning shaft 28, and the pin 24 of the latch part is provided with a connecting hole 242 to connect the positioning shaft 28; the connecting member 31 is provided with a firing part 313, and the latch mechanism also includes an opening assembly, which includes a trigger plate 51 and a limiting member 52. The trigger plate 51 and the positioning shaft 28 are movably arranged, and the trigger plate 51 and the limiting member 52 are rotatably arranged. The limiting member 52 is adapted to rotatably connect with the lock box 1. The trigger plate 51 is arranged on the sliding path of the firing part 313 along the connecting member 31 toward the opening assembly. The firing part 313 is adapted to contact and act on the trigger plate 51 to drive the positioning shaft 28 to move, thereby moving the latch part and the latch part. In this scheme, the connecting piece 31 slides closer to the opening assembly, and the firing part 313 contacts and actuates the trigger plate 51. One end of the trigger plate 51 is rotatably connected to the limiting member 52, and the other end of the trigger plate 51 is movably set to the positioning shaft 28, causing the trigger plate 51 to rotate around the limiting member 52. The trigger plate 51, in conjunction with the positioning shaft 28 and the pin 24 of the latch part, moves along... Figure 3 and Figure 4 The vertical displacement moves downward, causing the latch and the bolt to move together, thus opening the door. The sliding displacement of the firing part 313 on the connecting member 31 to the trigger plate 51 is greater than the unlocking displacement of the locking slider 44 moving away from the bolt. This divides the displacement of the connecting member 31 into two stages. In the first stage, the locking slider 44 unlocks from the bolt. In the second stage, the opening component is fired, causing the latch and bolt to move into the lock box 1, opening the door. This design facilitates smooth structural operation and makes opening the door easier.

[0093] The locking tongue mechanism provided by this utility model works as follows:

[0094] First, pull the connecting piece 31 to slide, and the connecting piece 31 will move the unlocking component 4 in conjunction with it.

[0095] In the locking tongue section, the first locking tongue 21 is connected to the locking slider 44 of the unlocking component 4, and is in a locked state when not triggered, such as... Figure 8 As shown;

[0096] When the connecting component 31 moves in conjunction with the unlocking component 4, such as Figure 9 As shown, the first latch 21 will be triggered to move away from the locking slider 44, thereby putting the latch in the unlocked state. When the latch slides against the door body and there is a force F, the latch is in a rotatable state, as shown. Figure 10 As shown;

[0097] Continue pulling the connecting piece 31. The connecting piece 31 will contact and drive the opening component to move. The opening component will then drive the latch and the bolt to move. During this process, under the pressure F between the door body and the bolt, the bolt can rotate. Figure 10As shown; because the latch is in an active state, opening the door will be easier and more flexible.

[0098] After the door is opened, release connector 31, and unlocking component 4, opening component, bolt part and lock tongue part are reset under the action of locking elastic element;

[0099] When the door is closed, the latch first collides with the door body. Under the force, the latch elastic element contracts elastically. After the door is closed, the latch moves to the corresponding hole in the door body. The pressure of the door body on the latch disappears, and under the action of the spring force, the latch is ejected and reset, achieving the locked state.

[0100] This embodiment also provides a lock, such as Figure 1 and Figure 2 As shown, the lock includes a lock box 1 and the aforementioned bolt mechanism.

[0101] In a specific implementation, the lock box 1 is configured as a modular structure to facilitate quick assembly; for example, as... Figure 1 As shown, the lock box 1 includes a first mating plate 11, a second mating plate 12, and a lock head panel 13 that are spliced ​​together. The lock tongue can slide through the lock head panel 13. The first mating plate 11 is a flat plate, and the second mating plate 12 is a grooved plate. The lock box 1 also includes a bracket 14, which is built into the lock box 1. The bracket 14, the first mating plate 11, and the second mating plate 12 are connected and fixed together by external fasteners.

[0102] In a preferred embodiment, such as Figure 1 As shown, the first docking plate 11 is provided with a transition groove 111. During the assisted unlocking process, the transition groove 111 is used to transition the first moving component 45 from the second groove segment 3112 to the first groove segment 3111, so as to facilitate the smooth translational movement of the unlocking lever 41. In the specific structural setting, the transition groove 111 is set as an arc-shaped groove.

[0103] In specific implementation methods, such as Figure 1 and Figure 11 As shown, the first docking plate 11 is provided with a first constraint groove 112, and the second docking plate 12 is provided with a second constraint groove 121. The first constraint groove 112 and the second constraint groove 121 are arranged opposite to each other. The first constraint groove 112 and the second constraint groove 121 are used together to slide and connect the protrusion 233 on the mounting base 23 to ensure the movement accuracy of the latch part during the door opening stage.

[0104] In specific implementation methods, such as Figure 1 and Figure 5As shown, the first mating plate 11 has a first positioning groove 113, and the second mating plate 12 has a second positioning groove 122. The first positioning groove 113 and the second positioning groove 122 are aligned and opposite to each other. The first positioning groove 113 and the second positioning groove 122 are used together to fix the positioning plate 26 to establish the connection basis for the locking elastic element. In a specific structural setting, the positioning plate 26 can be configured with two opposing positioning protrusions to be inserted and fitted into the positioning groove.

[0105] In the above description, the lock may be equipped with an actuation mechanism to act on the sliding movement of the connecting member 31 to assist in unlocking the bolt and releasing the bolt from the locked state of the door.

[0106] This embodiment also provides an intelligent door control system, including the aforementioned latch mechanism or lock. The intelligent door control system can be configured with a controller to control the opening and closing of the actuation mechanism, enabling more intelligent operation and adjustment of the lock to meet the usage requirements of the intelligent door control system.

[0107] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A locking tongue mechanism, characterized in that, include: A latch assembly (2) is adapted to be movably connected to a lock box (1); the latch assembly (2) has a latch portion and a pin portion, the latch portion and the pin portion being rotatably configured, the latch portion having a mating portion (212), the mating portion (212) being disposed in the area of ​​the latch portion adjacent to the pin portion; the latch assembly (2) includes a locking elastic element, one end of the locking elastic element being adapted to be fixed to the lock box (1); The operating component (3) includes a connector (31) adapted to slide with the lock box (1); The unlocking component (4) includes a locking slider (44), which is slidably disposed with the pin portion. The locking slider (44) has a limiting part (442), and the limiting part (442) and the docking part (212) are conformally fitted together. Under the action of external force, the connecting member (31) has a moving state that drives the unlocking component (4) to move, compresses the locking elastic member, and makes the locking slider (44) slide away from the locking tongue portion, so as to unlock the limiting part (442) and the docking part (212). The other end of the locking elastic member is connected to the locking slider (44), so that the locking slider (44) slides toward the locking tongue part with elastic force, so that the limiting part (442) and the docking part (212) can be reset and locked.

2. The locking tongue mechanism according to claim 1, characterized in that, The unlocking assembly (4) further includes an unlocking paddle (41), an unlocking lever (42), and an unlocking lever (43). The unlocking paddle (41) and the connecting member (31) are slidably connected. The unlocking paddle (41) and the unlocking lever (42) are movably connected. The unlocking lever (43) is adapted to be rotatably disposed in the lock box (1). One end of the unlocking lever (43) is slidably connected to the unlocking lever (43), and the other end of the unlocking lever (43) is slidably connected to the latch portion. The unlocking lever (43) and the locking slider (44) are connected in a transmission manner. The connecting member (31) is used to slide and drive the unlocking paddle (41), so that the unlocking paddle (41) drives the unlocking lever (42), thereby acting on the unlocking lever (43) to drive the locking slider (44) to slide away from the latch portion.

3. The locking tongue mechanism according to claim 2, characterized in that, The connecting member (31) is provided with a connecting groove (311). The unlocking assembly (4) further includes a first moving member (45), a second moving member (46), a movable member (47), and a rotating member (48). The first moving member (45) and the second moving member (46) are spaced apart. The first moving member (45) is connected to the end of the unlocking lever (41) away from the unlocking lever (42). The second moving member (46) is connected to the middle section of the unlocking lever (41). The first moving member (45) and the second moving member (46) are slidably disposed in the connecting groove (311). The movable member (47) is movably disposed at the junction of the unlocking lever (41) and the unlocking lever (42). The rotating member (48) is adapted to connect with the lock box (1). The rotating member (48) and the unlocking lever (43) are rotatably connected. The unlocking lever (43) is provided with a rotating part (431) and a force transmitting part (432), the rotating part (431) and the force transmitting part (432) are spaced apart, the rotating part (431) is adapted to rotate into contact with the lock box (1), the locking slider (44) is provided with a connecting part (441), the force transmitting part (432) and the connecting part (441) are rotated into contact, and the rotation axis of the rotating part (431) and the rotation axis of the rotating component (48) are parallel and spaced apart.

4. The locking tongue mechanism according to claim 3, characterized in that, The connecting groove (311) includes a first groove segment (3111) and a second groove segment (3112) that are connected to each other. The first groove segment (3111) extends along the sliding direction of the connecting member (31), and the extension direction of the first groove segment (3111) intersects with the extension direction of the second groove segment (3112); and / or The unlocking paddle (41) has an adjustment groove (411), and the movable member (47) is slidably disposed within the adjustment groove (411). The unlocking paddle (41) and the unlocking lever (42) are slidably and rotatably disposed with respect to the movable member (47) via the adjustment groove (411); and / or The unlocking lever (43) is also provided with a first rolling end (433) and a second rolling end (434). The first rolling end (433) and the pin portion are rolled abutting each other, and the second rolling end (434) and the unlocking lever (42) are rolled abutting each other. The unlocking lever (42) is provided with an extension edge (421) to contact the second rolling end (434).

5. The locking tongue mechanism according to claim 2, characterized in that, The connector (31) is provided with an upper abutment portion (312) and an assembly portion (314). The upper abutment portion (312) is adapted to abut against the inner wall of the lock box (1). The upper abutment portion (312) is bent away from the sliding direction of the connector (31). The assembly portion (314) is adapted to be disposed on the outside of the lock box (1); and / or The connector (31) is provided with a first guide groove (315) and a second guide groove (316) arranged at intervals. Each guide groove extends along the sliding direction of the connector (31). The operating component (3) also includes a first positioning pin (32) and a second positioning pin (33). Each positioning pin is adapted to be fixedly connected to the lock box (1). The first guide groove (315) is slidably arranged with the first positioning pin (32), and the second guide groove (316) is slidably arranged with the second positioning pin (33). The guide stroke of the first guide groove (315) and the guide stroke of the second guide groove (316) are the same.

6. The locking tongue mechanism according to any one of claims 1-5, characterized in that, The latch portion includes a first latch (21), the docking portion (212) is configured on the side of the first latch (21) facing the locking slider (44), and the limiting portion (442) is configured on the side of the locking slider (44) facing the first latch (21). The pin portion includes a mounting base (23) and a pin (24) that are fixedly connected. The first locking tongue (21) and the mounting base (23) are rotatably connected. The locking elastic element is sleeved on the pin (24), and the locking slider (44) is sleeved and slid on the pin (24).

7. The locking tongue mechanism according to claim 6, characterized in that, The latch assembly (2) further includes a second latch (22) and a retaining pin (25). The first latch (21) and the second latch (22) are connected and mounted on the mounting base (23) via the retaining pin (25). The mounting base (23) has a pivot hole (231) for mounting the retaining pin (25). The second latch (22) is provided with a rotating part (222), which is at least capable of abutting against the mounting base (23); and / or The mounting base (23) is provided with a contact edge (232) to slide against the unlocking lever (43) of the unlocking assembly; and / or The mounting base (23) is provided with at least one protrusion (233), the protrusion (233) being adapted to slide into contact with the lock box (1); and / or The pin portion further includes a positioning plate (26), which is adapted to be fixed inside the lock box (1). One end of the locking elastic member elastically abuts against the end face of the positioning plate (26) facing the latch portion, and the other end of the locking elastic member elastically abuts against the end face of the locking slider (44) away from the latch portion; and / or The locking slider (44) is provided with a support part (443), a recessed part (444) and a through part (445). When the limiting part (442) and the docking part (212) are locked, the support part (443) is abutted against the rotating part (222) of the second locking tongue (22). The recessed part (444) is used to assemble the mounting base (23), and the through part (445) is slidably connected to the pin (24).

8. The locking tongue mechanism according to any one of claims 1-5, characterized in that, The pin portion further includes a limiting clip (27), and a groove (241) is recessed on the pin (24) of the pin portion. The limiting clip (27) is engaged in the groove (241), and the groove (241) is located on the path of the locking slider (44) away from the locking tongue portion; and / or The latch portion also includes a positioning shaft (28), and the pin (24) of the latch portion is provided with a connecting hole (242) to connect the positioning shaft (28); the connecting member (31) is provided with a firing part (313), and the latch mechanism also includes an opening assembly, the opening assembly including a trigger plate (51) and a limiting member (52), the trigger plate (51) and the positioning shaft (28) are movably arranged, the trigger plate (51) and the limiting member (52) are rotatably arranged, and the limiting member (52) is adapted to engage with the lock. The box (1) is rotated and connected. The trigger plate (51) is disposed on the sliding path of the firing part (313) towards the opening component along with the connecting member (31). The firing part (313) is adapted to contact and act on the trigger plate (51) to link the displacement of the positioning shaft (28) and drive the locking tongue part and the pin part to move. The sliding displacement of the firing part (313) on the connecting member (31) to the trigger plate (51) is greater than the unlocking displacement of the locking slider (44) sliding away from the locking tongue part.

9. A lock, characterized in that, It includes a lock box (1) and a locking tongue mechanism as described in any one of claims 1-8.

10. An intelligent access control system, characterized in that, Includes the locking tongue mechanism as described in any one of claims 1-8 or the lock as described in claim 9.

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