A linkage lock body structure with switch signal and door lock

Abstract

The application discloses a linkage lock body structure with switch signals and a door lock, and the structure comprises a lock cylinder handle, a square tongue plate which is in transmission connection with the lock cylinder handle and is used for translating between a security position and a normal mode position, a first state detection switch which is used for detecting the square tongue plate position to generate a square tongue plate state signal, a latch assembly which has an extension and retraction state, a long handle plate which is in transmission connection with the lock cylinder handle and the latch assembly and is used for driving the latch assembly, a second state detection switch which is used for detecting the latch assembly state to generate a latch state signal, a key switch paddle which is in transmission connection with the lock cylinder handle, and a key operation detection switch which is used for being triggered when the key switch paddle is driven to generate a key operation signal. Through the integrated mechanical linkage design, the independent detection and signal output of the square tongue plate, the latch and the key operation are realized by using the time-sharing driving of the lock cylinder handle, the function is comprehensive, the structure is compact, and the reliability is high.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and more specifically, to a linkage lock body structure with a switch signal and a door lock. Background Technology

[0002] Smart locks are widely used in scenarios requiring access control, such as hotels, rental apartments, and office buildings. However, existing smart locks still have many shortcomings in terms of function integration and status feedback, mainly reflected in:

[0003] 1. Lack of hierarchical management status basis: Traditional locks can only achieve basic locking and unlocking, and cannot provide the back-end management system with physical signals to determine the current security level. For example, it cannot distinguish whether a guest has locked the door from the inside (high security level, cleaning staff should be prohibited from entering) or it is just a regular lock (normal security level).

[0004] 2. Inadequate detection of door not fully closed: Although some locks can detect the door's open / closed status, their signal logic is simple, which can easily lead to misjudgments. Furthermore, their correlation with other internal actions of the lock is weak, affecting the accuracy and timeliness of the alarm and posing potential risks to energy consumption and security management in hotels and other establishments.

[0005] 3. Ineffective Monitoring of Mechanical Key Operations: In many smart locks, mechanical keys are used as an emergency or highest-level access method. However, when a mechanical key is used to unlock the lock, the electronic system often fails to detect and record this action, creating a significant security vulnerability. In the event of a security incident, administrators cannot trace whether someone used the mechanical key for unauthorized operations.

[0006] Therefore, how to provide a lock body structure that is compact, reliable in linkage, and can integrate multiple key status detection signals within a single lock body to support complex hierarchical access control, door status monitoring, and mechanical key operation traceability has become a pressing technical challenge in this field. Summary of the Invention

[0007] The main objective of this invention is to provide a linkage lock body structure with a switch signal, which aims to solve the technical problems mentioned in the background art, such as the existing lock body having a single signal and being unable to support hierarchical management and operation traceability.

[0008] To achieve the above objectives, the present invention provides a linkage lock body structure with a switch signal, comprising:

[0009] Lock cylinder dial;

[0010] The square tongue plate is connected to the lock cylinder dial wheel. The rotation of the lock cylinder dial wheel can drive the square tongue plate to move between the security position and the normal mode position.

[0011] The latch assembly is connected to the lock cylinder dial drive, and the rotation of the lock cylinder dial can drive the latch assembly to translate between the extended and retracted positions;

[0012] The first sensor, linked to the square tongue plate, is used to detect the position of the square tongue plate;

[0013] The second sensor, linked to the latch assembly, is used to detect the position of the latch assembly;

[0014] The key switch lever is connected to the lock cylinder dial drive;

[0015] The third sensor, linked to the key switch lever, is triggered when the lock cylinder lever is rotated;

[0016] It also includes a lock cylinder paddle assembly, which is pivotally mounted on the square tongue plate and can move with the square tongue plate, and has a lock cylinder paddle rolled edge.

[0017] Among them, the lock cylinder dial is configured to be driven in a time-sharing manner. In the first stage of the rotation process, it drives the square tongue plate to translate. During this process, the square tongue plate drives the lock cylinder dial assembly to translate, so that the rolled edge of the lock cylinder dial enters the rotation path of the lock cylinder dial.

[0018] In the second stage of the rotation process, the lock cylinder dial moves the shaped edge of the lock cylinder dial, driving the lock cylinder dial assembly to rotate, thereby driving the latch assembly to translate and driving the key switch dial to move.

[0019] This invention constructs a unique "displacement-dependent" time-sharing drive structure by pivotally mounting the lock cylinder paddle assembly onto the latch plate. Only when the lock cylinder paddle wheel drives the latch plate to its first-stage translation position (e.g., the retracted state) can the latch plate "transport" the attached lock cylinder paddle assembly and its rolled edge into the rotation path of the lock cylinder paddle wheel, thus physically connecting the second-stage transmission chain. This design not only cleverly achieves strict time-sharing control under single-axis drive, avoiding the risk of accidental activation of the latch when the latch is not retracted, but also greatly simplifies the internal structure of the lock body, eliminating the need for a complex clutch mechanism. Simultaneously, in conjunction with the position detection of three sensors, the lock body can accurately output switching signals corresponding to different security levels (latch extension / retraction) and operating states (key unlocking), effectively supporting the hierarchical management of the door lock system.

[0020] Optionally, it also includes a square latch, which is located between the lock cylinder dial and the square latch plate;

[0021] The square tongue jack is provided with a square tongue jack positioning boss as the pivot axis and an eccentric square tongue jack actuating shaft. The square tongue plate is provided with a square tongue plate track groove, and the square tongue jack actuating shaft is accommodated in the square tongue plate track groove.

[0022] The square tongue turner also has at least one square tongue turner support arm. When the lock cylinder turner rotates in the first stage, it moves the square tongue turner support arm, thereby driving the square tongue turner to rotate around the square tongue turner positioning boss.

[0023] The rotation of the square tongue peach-picking mechanism drives the square tongue plate to translate by sliding the square tongue peach-picking shaft within the square tongue plate's track groove.

[0024] Thus, this scheme clarifies the complete transmission path of the lock cylinder dial wheel driving the square tongue plate in the first stage. By defining the eccentric structural relationship between the rotating shaft and the transmission point, it clearly reveals how the rotational motion of the lock cylinder dial wheel can be accurately converted into the translational motion of the square tongue plate through the lever principle and the "pin-groove" (pulling shaft-track groove) cooperation, ensuring the smoothness of the transmission.

[0025] Optionally, it also includes a guide structure for translating the guide tongue plate;

[0026] The guiding structure includes:

[0027] The first set of guide structures includes a fixedly mounted square tongue plate positioning piece and a square tongue plate side that slides with the square tongue plate positioning piece; and / or

[0028] The second set of guide structures includes a square tongue plate positioning shaft set on the square tongue plate and a box cover strip-shaped guide groove opened on the lock body shell for the square tongue plate positioning shaft to slide.

[0029] Thus, by using one or two sets of guide structures, a clear and stable motion trajectory is provided for the translation of the square tongue plate, ensuring that the square tongue plate can strictly follow the preset path when under force (such as when driven by the square tongue peach), thereby further improving mechanical reliability.

[0030] Optionally, the lock cylinder lever assembly is provided with a lock cylinder lever pivot, and the lock cylinder lever assembly is pivotally mounted on the square tongue plate via the lock cylinder lever pivot.

[0031] Thus, by setting a pivot shaft for the lock cylinder paddle, a reliable pivotal connection between the lock cylinder paddle assembly and the latch plate is achieved. This connection method has a simple structure and occupies little space, ensuring that the lock cylinder paddle assembly can not only move stably with the latch plate, but also deflect flexibly when paddled, guaranteeing the smoothness of time-sharing operation and the reliability of mechanical transmission.

[0032] Optionally, it also includes a long, angled lever plate, which is linked to the angled lever assembly;

[0033] The lock cylinder lever assembly is provided with a lock cylinder lever arc-shaped position, and the long lever plate of the tongue is provided with a long lever plate side.

[0034] The rotation of the lock cylinder lever assembly pushes the side of the long lever plate through the arc-shaped position of its lock cylinder lever, thereby driving the long lever plate of the latch to swing, and in turn driving the latch assembly to translate.

[0035] Thus, the scheme clarifies the specific transmission chain of the second-stage drive latch assembly (lock cylinder paddle assembly → latch long paddle plate → latch assembly). Through the cooperation of "arc position" and "side", smooth force transmission is achieved, forming the first execution branch of the second stage of "time-sharing drive".

[0036] Optionally, the key switch paddle is pivotally configured;

[0037] When the lock cylinder paddle assembly rotates, it drives the key switch paddle through the rolled edge of the lock cylinder paddle, causing the key switch paddle to rotate.

[0038] The key switch lever is equipped with a key lever forming angle, and the rotation of the key switch lever triggers the third sensor through the key lever forming angle.

[0039] Therefore, this scheme clarifies the second execution branch of the second stage of "time-sharing drive," namely the complete transmission chain of the key operation signal. By defining the pivoting characteristics of the key switch paddle and its triggering structure, it clearly describes how the lock cylinder paddle assembly simultaneously drives the paddle rotation and ultimately triggers the third sensor.

[0040] Optionally, a support arm is provided on the square tongue plate, and the support arm is formed into a U-shaped opening;

[0041] The square tongue-shaped positioning boss is accommodated within the U-shaped opening. When the square tongue plate moves, the U-shaped opening slides along the square tongue-shaped positioning boss to limit the translation trajectory of the square tongue plate.

[0042] The support arm on the square tongue plate is also used to trigger the first sensor.

[0043] Therefore, this scheme further defines the triggering method of the first sensor and reveals a key composite functional structure: the support arm on the square tongue plate not only serves as a triggering element, but its U-shaped opening also slides in conjunction with the fixed rotating shaft (positioning boss) of the square tongue pusher. This utilizes the limiting effect of the positioning boss of the square tongue pusher on the U-shaped opening to provide a third layer of guidance (in addition to the guiding structure described in claim 3) for the translation of the square tongue plate, ensuring the absolute stability of the motion trajectory and preventing the square tongue plate from swaying up and down during movement.

[0044] Optionally, the tongue assembly is provided with a tongue rod positioning piece, which selectively triggers the second sensor according to the extended or retracted position of the tongue assembly.

[0045] Therefore, the scheme is no longer an isolated sensor description, but constitutes a complete "drive-feedback" closed loop, that is, the translational movement of the tongue assembly described in weight 5 is reliably detected by the second sensor through the tongue rod positioning plate on it.

[0046] Optionally, it also includes a square tongue spring, which provides holding force for the movement of the square tongue peach-picking mechanism.

[0047] Therefore, by adding a square tongue spring, the square tongue can be stably kept in its current position when the lock cylinder wheel is not driven, preventing the square tongue from moving accidentally due to vibration or other reasons, thus improving the stability and reliability of the lock body.

[0048] Optionally, a door lock includes the linkage lock body structure as described above.

[0049] Therefore, applying the above-mentioned linkage lock body structure to door lock products enables the door lock to have all the functions of hierarchical management, door status monitoring and key operation traceability, thereby improving the intelligence level and security of the door lock. Attached Figure Description

[0050] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0051] Figure 1 This is a structural exploded view of an embodiment of the present invention;

[0052] Figure 2 This is a schematic diagram of the lock body (box cover side) according to an embodiment of the present invention.

[0053] Figure 3 This is a schematic diagram of the internal structure of the switch-mounted base in the locked state according to an embodiment of the present invention;

[0054] Figure 4 This is a perspective view of the internal structure of the fixing base without the switch in the locked state according to an embodiment of the present invention;

[0055] Figure 5 This is a schematic diagram of the internal structure of an embodiment of the present invention in the locked state;

[0056] Figure 6 for Figure 5 AA section view;

[0057] Figure 7 This is a schematic diagram of the internal structure of the key switch lever before it is activated in the locked state, according to an embodiment of the present invention.

[0058] Figure 8 This is a schematic diagram illustrating the internal structure of the square latch and the lock cylinder wheel in the locked state, according to an embodiment of the present invention.

[0059] Figure 9 This is a schematic diagram of the linkage state when the latch is moved during the initial rotation of the lock cylinder dial in an embodiment of the present invention.

[0060] Figure 10 This is a schematic diagram of the linkage state when the lock cylinder dial continues to rotate and the lock cylinder dial assembly is moved, according to an embodiment of the present invention.

[0061] Figure 11 This is a schematic diagram of the linkage state when the long lever of the oblique tongue is moved during the unlocking process according to an embodiment of the present invention;

[0062] Figure 12 for Figure 11 A diagram showing the view from the rear.

[0063] Figure 13 This is a schematic diagram of the linkage state when the key switch lever is toggled during the unlocking process according to an embodiment of the present invention;

[0064] Figure 14 for Figure 13 A diagram showing the view from the rear.

[0065] Figure 15 This is a schematic diagram of the box lid structure in an embodiment of the present invention;

[0066] Figure 16 This is a schematic diagram of the structure of the square tongue plate and the square tongue plate bushing in an embodiment of the present invention;

[0067] Figure 17 This is a schematic diagram of the structure of the square tongue plate positioning piece in an embodiment of the present invention;

[0068] Figure 18 This is a schematic diagram of the structure of the oblique tongue long lever plate, square tongue lever, lock cylinder lever assembly, lock cylinder and key switch lever in an embodiment of the present invention;

[0069] Figure 19 This is a schematic diagram of the oblique tongue component in an embodiment of the present invention.

[0070] Explanation of reference numerals in the attached drawings: 1. Outer liner plate; 2. Fixing screw; 3. Inner liner plate; 4. Box bottom; 401. First internal threaded post; 402. Second internal threaded post; 403. Positioning slot; 404. Pulley positioning through hole; 5. Slanted tongue assembly; 501. Slanted tongue return spring; 502. Slanted tongue guide plate; 503. Slanted tongue rod positioning plate; 504. Slanted tongue rod; 6. Slanted tongue long lever plate; 601. Long lever plate 602. Side of long lever plate; 603. Positioning hole of long lever plate; 604. Clearance groove; 605. Limiting elongated hole; 7. Square tongue lever; 701. Actuating shaft of square tongue lever; 702. Positioning boss of square tongue lever; 703. Support arm of square tongue lever; 8. Square tongue plate; 801. Positioning shaft of square tongue plate; 802. Side of square tongue plate; 803. Track groove of square tongue plate; 804. On square tongue plate Support arm; 805, through hole; 9, square tongue plate bushing; 10, square tongue plate positioning piece; 1001, square tongue plate positioning piece groove; 1002, square tongue plate positioning piece boss; 11, lock cylinder paddle assembly; 1101, lock cylinder paddle rotating shaft; 1102, lock cylinder paddle arc position; 1103, lock cylinder paddle rolled edge; 12, lock cylinder; 1201, lock cylinder dial wheel; 13, square tongue plate spring; 14, key switch paddle; 1401, key paddle shaft hole; 1402, key paddle rolled angle; 15, cover; 1501, first cover positioning hole; 1502, cover strip guide groove; 1503, cover positioning round hole; 1504, second cover positioning hole; 16, switch fixing seat; 17, first micro switch; 18, second micro switch; 19, third micro switch; 20, switch protection piece. Detailed Implementation

[0071] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0072] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0073] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0074] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0075] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0076] To make the objectives, technical solutions, and advantages of this invention clearer, the following will be combined with... Figures 1 to 19 The embodiments of the present invention will be described in detail.

[0077] Reference Figures 1 to 19 In this embodiment, the linkage lock body structure is installed inside the lock body shell formed by the bottom box 4 and the cover box 15. The lock body structure of this embodiment includes the bottom box 4 and the cover box 15 as the base, and the following components installed on the base: outer liner plate 1, inner liner plate 3, fixing screw 2, lock cylinder 12, lock cylinder dial wheel 1201 (driven by the lock cylinder 12), square tongue plate 8, oblique tongue assembly 5, oblique tongue long dial plate 6, square tongue dial 7, lock cylinder dial assembly 11, key switch dial 14, square tongue plate positioning plate 10, square tongue plate bushing 9, square tongue plate spring 13, switch fixing seat 16, first micro switch 17 (as a specific implementation of the first state detection switch), second micro switch 18 (as a specific implementation of the second state detection switch), third micro switch 19 (as a specific implementation of the key operation detection switch), and switch protection plate 20.

[0078] First, describe the static installation structure and positioning relationship of each component.

[0079] Reference Figure 1 , Figure 3 , Figure 15 The bottom of the box 4 serves as the mounting base, with a first internal threaded post 401 at its lower right corner and a second internal threaded post 402 above the first internal threaded post 401. It also has a positioning slot 403 and a mortise positioning through hole 404. The cover 15 serves as the cover plate, with a first cover positioning hole 1501, a cover strip-shaped guide groove 1502 (which is a strip-shaped through hole with semi-circular ends), a cover positioning round hole 1503, and a second cover positioning hole 1504 for installation and guidance.

[0080] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 The switch mounting base 16 is installed on the bottom of the box 4 and is fixed to the first internal thread post 401 and the second internal thread post 402 through corresponding positioning holes. The first micro switch 17, the second micro switch 18, and the third micro switch 19 are all fixed to the switch mounting base 16 by adhesive or other means such as screws, for subsequent signal detection.

[0081] The lock cylinder 12 is installed and fixed inside the bottom box 4 through the lock cylinder mounting hole. Its rotation can drive the lock cylinder dial 1201 to rotate. The lock cylinder dial 1201 is the driving source for all subsequent linkage actions.

[0082] Reference Figure 1, Figure 3 , Figure 8 The oblique tongue long lever 6 has a long lever positioning hole 603 and a long lever actuating protrusion 601 at both ends. A long lever side 602 is provided on the left side of its middle section, and a slightly curved limiting long hole 605 is provided. A clearance groove 604 is provided on the right side of the limiting long hole 605. The long lever side 602 is located below the limiting long hole 605. During installation, the oblique tongue long lever 6 is fitted onto the first internal threaded post 401 through its long lever positioning hole 603, and is located below the switch fixing seat 16 (i.e., closer to the bottom plate of the box bottom 4), allowing the oblique tongue long lever 6 to rotate around the first internal threaded post 401.

[0083] Reference Figure 1 , Figure 3 , Figure 18 The key switch lever 14 is shaped like the number "7". It has a key switch lever shaft hole 1401 at the bottom of the "7" shape and a key switch lever bevel 1402 at its waist. During installation, the key switch lever 14 is also fitted onto the first internal threaded post 401 through its key switch lever shaft hole 1401, and is positioned above the switch mounting base 16. Thus, the oblique tongue long lever 6, the switch mounting base 16, and the key switch lever 14 form a three-layer coaxial structure stacked on the first internal threaded post 401, wherein both the oblique tongue long lever 6 and the key switch lever 14 can swing around the first internal threaded post 401.

[0084] Reference Figure 1 , Figure 15 , Figure 18 The square-tongue peach 7 has two cylindrical square-tongue peach positioning bosses 702 (serving as pivot axes) located on both sides of its thickness and also on one side of its length, as well as a square-tongue peach actuating shaft 701 eccentrically located on the other side of its length and two square-tongue peach support arms 703 located on one side of the square-tongue peach positioning bosses 702 and spaced apart along its length. During installation, one end of the square-tongue peach positioning boss 702 (near the bottom of the box) passes sequentially through the limiting elongated hole 605 on the oblique tongue long plate 6 and the peach positioning through hole 404 on the bottom of the box 4, with the peach positioning through hole 404 as its axis; the other end of the square-tongue peach positioning boss 702 is installed in the box cover positioning round hole 1503 of the box cover 15. The square-tongue peach 7 can rotate around the axis of the square-tongue peach positioning boss 702. When the oblique tongue long lever plate 6 swings around the first internal thread post 401, its limiting long hole 605 will slide relative to the square tongue peach positioning boss 702. The two ends of the limiting long hole 605 also limit the swing stroke of the oblique tongue long lever plate 6.

[0085] Reference Figure 1 , Figure 15 , Figure 16 and Figure 17The square tongue plate positioning piece 10 has a square tongue plate positioning piece groove 1001 and square tongue plate positioning piece bosses 1002 located on opposite sides of the square tongue plate positioning piece groove 1001. During installation, one side of the square tongue plate positioning piece 10 has a square tongue plate positioning piece boss 1002 that mates with the first box cover positioning hole 1501 on the box cover 15; the other side of the square tongue plate positioning piece boss 1002 mates with the positioning slot hole 403 opened on the box bottom 4, thereby firmly fixing the square tongue plate positioning piece 10 between the box bottom 4 and the box cover 15.

[0086] Reference Figure 1 , Figure 5 , Figure 6 , Figure 8 , Figure 15 , Figure 16 and Figure 17 The square tongue plate 8 has a square tongue plate side 802, a square tongue plate track groove 803 (including a vertical section and an inclined section), a square tongue plate positioning shaft 801, a square tongue plate upper support arm 804, and a through hole 805. Among them, the square tongue plate upper support arm 804 is formed into a U-shaped opening.

[0087] During installation, the movement of the square tongue plate 8 is precisely restricted by a triple guide structure to ensure absolute stability during its translation process:

[0088] First-level guide (bottom guide): Its side 802 of the square tongue plate is accommodated in the square tongue plate positioning plate groove 1001 of the fixedly set square tongue plate positioning plate 10, forming a sliding fit and restricting its up and down movement.

[0089] Secondary guidance (upper guidance): Two square tongue plate positioning shafts 801 spaced apart in the horizontal direction are each fitted with a square tongue plate bushing 9. The square tongue plate bushing 9 is accommodated in the box cover strip guide groove 1502 of the box cover 15, providing the main guide path for the translation of the square tongue plate 8 and reducing friction.

[0090] The third layer of guidance (compound function guidance): The U-shaped opening of the support arm 804 on the square tongue plate is fitted onto the square tongue locating boss 702, which serves as the pivot axis of the square tongue locating boss 7. When the square tongue plate 8 translates, the U-shaped opening slides along the fixed square tongue locating boss 702. This sliding fit not only precisely limits the translation trajectory but also effectively prevents the square tongue plate 8 from slight swaying back and forth or up and down during the force application process, greatly enhancing the reliability of the movement.

[0091] In addition, the square tongue spring 13 (such as Figure 5 , Figure 7 , Figure 8(As shown) includes a long elastic side and a short elastic side connected by a curved transition section. During installation, the square tongue leaf spring 13 is fitted onto the first internal thread post 401 through its curved transition section. Its short elastic side acts on the side wall of the bottom of the box 4, and its long elastic side cooperates with the square tongue tumbler 7 to provide elasticity or holding force for its movement.

[0092] Reference Figure 1 , Figure 10 , Figure 18 The lock cylinder lever assembly 11 has a lock cylinder lever body, a lock cylinder lever shaft 1101 located on one side of the lock cylinder lever body thickness and perpendicular to the lock cylinder lever body, a lock cylinder lever arc-shaped position 1102 located on one side of the lock cylinder lever body, and a lock cylinder lever rolled edge 1103 located perpendicular to the lock cylinder lever body and spaced apart from the lock cylinder lever arc-shaped position 1102. The lock cylinder lever rolled edge 1103 extends in the same direction as the lock cylinder lever shaft 1101. During installation, the lock cylinder lever shaft 1101 is installed in the through hole 805 of the square tongue plate 8. The through hole 805 is located below the square tongue plate positioning shaft 801, so that the lock cylinder lever assembly 11 can rotate around the lock cylinder lever shaft 1101 and also translate with the square tongue plate 8.

[0093] Reference Figure 1 , Figure 19 The latch assembly 5 includes a latch rod 504, a latch guide plate 502, a latch rod positioning plate 503, and a latch return spring 501. A locking tongue is provided at one end of the latch rod 504, and the latch rod positioning plate 503 is fixed to the other end of the latch rod 504. The latch guide plate 502 is sleeved on the latch rod 504 and can slide relative to the latch rod 504. The latch return spring 501 is sleeved on the outer periphery of the latch rod 504, located between the locking tongue and the latch guide plate 502. Under the elastic action of the latch return spring 501, the latch assembly 5 can translate between the extended and retracted positions.

[0094] From a spatial perspective (such as) Figure 3 , Figure 4 , Figure 5 As shown), the oblique tongue long plate 6 is closest to the bottom of the box 4, the square tongue peach 7 is located above the oblique tongue long plate 6, and the square tongue plate 8 is located above the square tongue peach 7.

[0095] Next, the linkage function and signal generation process of the embodiments of the present invention will be described.

[0096] First, in the initial state (such as...) Figure 5As shown, when the door is open, the latch assembly 5 is in an extended state (moving to the left) under the elastic thrust of the latch return spring 501. At this time, the latch rod positioning piece 503 pulls the long plate on the latch long plate 6 to apply a force to the left to the protrusion 601, causing the latch long plate 6 to swing to an initial position. When the latch assembly 5 moves to the fully extended position, the latch rod positioning piece 503 disengages from the switch protection piece 20 located near the second micro switch 18. At this time, the second micro switch 18 is in its natural open state and outputs an open signal. This open signal indicates that the latch assembly is in the extended state (i.e., the door is open).

[0097] When the door is closed, the latch assembly 5 is temporarily pressed into the door frame. The latch rod positioning piece 503 then moves and presses against the switch protection piece 20, triggering the second micro switch 18 and briefly outputting a closed signal. When the door is fully closed (i.e., the door is tightly closed), the latch assembly 5 pops out from the door frame and returns to its extended state. The latch rod positioning piece 503 then resets and disengages from the switch protection piece 20, and the second micro switch 18 returns to its open state (same as the initial state). If the door is not tightly closed, the latch assembly 5 will remain pressed into the door frame, the latch rod positioning piece 503 will continue to press against the switch protection piece 20, and the second micro switch 18 will continuously output a closed signal. The system can determine that the door is not tightly closed based on this continuous closed signal and trigger an alarm.

[0098] Secondly, describe the linkage control process during unlocking:

[0099] Reference Figure 8 , Figure 9 , Figure 16 and Figure 17 When the user turns the lock cylinder 12, the lock cylinder 12 drives the lock cylinder dial 1201 to rotate. In the initial stage of rotation, the lock cylinder dial 1201 will only cooperate with the square latch lever support arm 703 of the square latch lever 7 (e.g., Figure 8 (As shown). The lock cylinder dial 1201 actuates the square latch lever support arm 703, causing the square latch lever 7 to rotate around the axis of its square latch lever positioning boss 702. During the rotation of the square latch lever 7, its square latch lever actuating shaft 701 moves within the square latch plate track groove 803 of the square latch plate 8, applying a downward and rightward force to the square latch plate 8 (see...). Figure 9 ).

[0100] Specifically, the square tongue plate track groove 803 on the square tongue plate 8 is a channel formed by two parallel inner walls, and the square tongue plate lever actuating shaft 701 is precisely accommodated in the track groove and slides along it. This design, which constrains the square tongue plate lever actuating shaft 701 within the square tongue plate track groove 803, forms an extremely stable and reliable sliding guide mechanism. It not only ensures the effective transmission of driving force, but more importantly, it effectively prevents the square tongue plate 8 from swaying, tilting, or jamming during translation, greatly improving the smoothness and mechanical reliability of the entire locking and unlocking process.

[0101] Reference Figure 13 and Figure 16 The square tongue plate track groove 803 includes a vertical section and an inclined section tilted to the left. Meanwhile, the square tongue plate 8 is restricted by its side 802, which is recessed by the square tongue plate positioning groove 1001 of the square tongue plate positioning piece 10 (e.g., Figure 17 As shown), simultaneously, because the square tongue plate bushing 9 is accommodated in the cover strip guide groove 1502 of the cover 15, the lower tongue plate 8 is doubly restricted from moving downwards and can only move laterally. Therefore, when the square tongue plate actuating shaft 701 rotates within the inclined square tongue plate track groove 803 (as shown), Figure 9 As shown, when the square tongue toggle axis 701 gradually moves to the right, it will force the square tongue plate 8, which is restricted to only lateral movement, to move laterally to the right (i.e., from the security / locked position to the normal mode position).

[0102] like Figure 3 As shown, during the translation of the square latch plate 8, the first micro switch 17 is triggered: When the square latch plate 8 is in the security / locked position (e.g., the leftmost position), the support arm 804 on the square latch plate and the switch protection plate 20 are in a loose or disengaged state, and the first micro switch 17 returns to the open state, outputting a disconnect signal. At this time, the system will perform hierarchical management based on this disconnect signal, such as allowing only the administrator to unlock. When the square latch plate 8 is translated to the normal mode position (e.g., the rightmost position), the support arm 804 on the square latch plate presses against the switch protection plate 20, thereby triggering the first micro switch 17 (e.g., the rightmost position). Figure 3 or Figure 5 As shown in the diagram, this generates a closing signal. At this point, the system will determine that the lock body is in normal mode based on this closing signal, allowing ordinary users to unlock it.

[0103] Reference Figure 10 Since the lock cylinder paddle assembly 11 has its lock cylinder paddle shaft 1101 installed in the through hole 805 of the square tongue plate 8, when the square tongue plate 8 moves laterally, it will drive the lock cylinder paddle assembly 11 to move synchronously to the right and closer to the lock cylinder 12.

[0104] As the lock cylinder dial 1201 continues to rotate, it will disengage from the square tongue lever support arm 703 of the square tongue lever 7. After rotating to a certain angle, since the lock cylinder lever assembly 11 has been translated to the right to the target position, the lock cylinder lever shaped edge 1103 on it is on the rotation path of the lock cylinder dial 1201. Consequently, the lock cylinder dial 1201 will engage with the lock cylinder lever shaped edge 1103 on the (translated) lock cylinder lever assembly 11, causing the lock cylinder lever assembly 11 to rotate around the lock cylinder lever shaft 1101.

[0105] Reference Figure 11 and Figure 12 When the lock cylinder lever assembly 11 rotates, the arc-shaped position 1102 of the lock cylinder lever on it will contact and push the long lever side 602 of the latch bolt long lever plate 6, causing the latch bolt long lever plate 6 to rotate around the first internal thread post 401 (i.e., the center of the long lever plate positioning hole 603). When the latch bolt long lever plate 6 moves to the right (with... Figure 11 When the lever swings to the right (based on the reference), the clearance groove 604 in the middle of its right side moves to the position of the second internal thread post 402, so that the second internal thread post 402 enters the clearance groove 604, thereby avoiding motion interference. When the long lever plate 6 rotates, the second micro switch 18 is triggered: the long lever plate on the long lever plate 6 engages with the lever rod positioning plate 503, pulling the lever rod positioning plate 503 to the right, thereby driving the entire lever assembly 5 (i.e., driving the lever 504) to overcome the elastic force of the lever return spring 501 and retract to the right (i.e., unlocking action). When the lever rod positioning plate 503 moves to the retracted position to the right, it presses the switch protection plate 20, thereby causing the second micro switch 18 to generate a closed signal (indicating that the lever has retracted).

[0106] Reference Figure 13 and Figure 14 Simultaneously, as the lock cylinder lever assembly 11 rotates, the third micro switch 19 is triggered: the lock cylinder lever's serrated edge 1103 contacts the key switch lever 14. The key switch lever 14 swings around the first internal thread post 401, and its serrated angle 1402 (or protrusion) presses against the third micro switch 19. At this time, the third micro switch 19 is triggered, generating a closing signal. The system uses this signal to determine whether the user has used the lock cylinder to open it; each closing signal represents one attempt by the user to open the lock cylinder.

[0107] In summary, the linkage lock body structure with switch signals provided by this invention clearly describes the mechanical structure of each component (such as the bottom of the housing, the cover of the housing, the latch, the lever, the lever, the fixing seat, the long lever plate, etc.) and its complex static installation and positioning relationships (such as coaxial stacking, through-hole positioning, and sliding groove guidance), thus constructing the mechanical foundation of the lock body. Furthermore, based on this installation structure, it details the continuous dynamic timing sequence of the movement from the translation of the square latch plate to the translation and rotation of the lock cylinder lever under the drive of the lock cylinder dial wheel, and finally the linkage of the long lever plate of the inclined latch and the key switch lever. This invention uses a single lock cylinder dial wheel to control the square latch plate, the inclined latch assembly, and the key switch lever, and respectively sets up first, second, and third microswitches, which can accurately provide locking / unlocking signals for hierarchical management, door open / close signals for door not closed alarms, and key operation signals for key operation counting. The entire structure is ingeniously designed, with a clear transmission chain and high component reuse rate, achieving complex functions while ensuring structural compactness and reliability.

[0108] Those skilled in the art will understand that the "micro switch" described above as an example can be replaced with other sensors that have the same position or state detection function, such as Hall sensors, photoelectric switches, inductive sensors, etc., and these replacement schemes all fall within the protection scope of this invention.

[0109] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A linkage lock body structure with a switch signal, characterized in that, include: Lock cylinder dial (1201); The square tongue plate (8) is connected to the lock cylinder dial (1201) in a transmission manner. The rotation of the lock cylinder dial (1201) can drive the square tongue plate (8) to translate between the security position and the normal mode position. The latch assembly (5) is connected to the lock cylinder dial (1201) in a transmission connection. The rotation of the lock cylinder dial (1201) can drive the latch assembly (5) to translate between the extended and retracted positions. The first sensor is linked with the square tongue plate (8) and is used to detect the position of the square tongue plate (8); The second sensor is linked with the oblique tongue assembly (5) and is used to detect the position of the oblique tongue assembly (5); The key switch lever (14) is connected to the lock cylinder lever (1201) in a transmission manner; The third sensor, linked to the key switch lever (14), is triggered when the lock cylinder lever (1201) rotates; It also includes a lock cylinder paddle assembly (11), which is pivotally mounted on the tongue plate (8) and can be translated together with the tongue plate (8), and has a lock cylinder paddle rolled edge (1103). It also includes a square tongue deflector (7), which is located between the lock cylinder deflector (1201) and the square tongue plate (8); The square tongue jack (7) is provided with a square tongue jack positioning boss (702) as a pivot axis and an eccentric square tongue jack actuating shaft (701). The square tongue plate (8) is provided with a square tongue plate track groove (803), and the square tongue jack actuating shaft (701) is accommodated in the square tongue plate track groove (803). The square tongue peach (7) also has at least one square tongue peach support arm (703). It also includes a long oblique tongue plate (6), which is linked with the oblique tongue assembly (5); The lock cylinder paddle assembly (11) is provided with a lock cylinder paddle arc position (1102), and the oblique tongue long paddle plate (6) is provided with a long paddle plate side (602). The lock cylinder dial wheel (1201) is configured for time-sharing drive. In the first stage of the rotation process, it drives the square tongue plate (8) to translate, including: the lock cylinder dial wheel (1201) moves the square tongue chuck support arm (703), driving the square tongue chuck (7) to rotate around the square tongue chuck positioning boss (702); the rotation of the square tongue chuck (7) is driven by the sliding of the square tongue chuck actuation shaft (701) in the square tongue plate track groove (803), driving the square tongue plate (8) to translate; during this process, the square tongue plate (8) drives the lock cylinder pawl assembly (11) to translate, so that the rolled edge (1103) of the lock cylinder pawl enters the rotation path of the lock cylinder dial wheel (1201); In the second stage of the rotation process, the lock cylinder dial (1201) moves the lock cylinder paddle shaped edge (1103) to drive the lock cylinder paddle assembly (11) to rotate, thereby driving the latch assembly (5) to translate and driving the key switch paddle (14) to move. This includes: the rotation of the lock cylinder paddle assembly (11) pushes the side edge (602) of the long paddle plate through the arc-shaped position (1102) of the lock cylinder paddle, thereby driving the long paddle plate (6) of the latch to swing, and then driving the latch assembly (5) to translate.

2. The linkage lock body structure according to claim 1, characterized in that, It also includes a guide structure for guiding the translation of the square tongue plate (8); The guiding structure includes: The first set of guide structures includes a fixedly mounted square tongue plate positioning piece (10) and a square tongue plate side (802) that slides with the square tongue plate positioning piece (10); and / or The second set of guide structures includes a square tongue plate positioning shaft (801) provided on the square tongue plate (8) and a box cover strip-shaped guide groove (1502) opened on the lock body shell for the square tongue plate positioning shaft (801) to slide.

3. The linkage lock body structure according to claim 1, characterized in that, The lock cylinder paddle assembly (11) is provided with a lock cylinder paddle pivot (1101), and the lock cylinder paddle assembly (11) is pivotally mounted on the square tongue plate (8) via the lock cylinder paddle pivot (1101).

4. The linkage lock body structure according to claim 3, characterized in that, The key switch lever (14) is pivotally mounted; When the lock cylinder paddle assembly (11) rotates, it drives the key switch paddle (14) through the rolled edge (1103) of the lock cylinder paddle, causing the key switch paddle (14) to rotate. The key switch paddle (14) is provided with a key paddle forming angle (1402), and the rotation of the key switch paddle (14) triggers the third sensor through the key paddle forming angle (1402).

5. The linkage lock body structure according to claim 1, characterized in that, The square tongue plate (8) is provided with a square tongue plate support arm (804), and the square tongue plate support arm (804) is formed into a U-shaped opening; The square tongue peach-picking positioning boss (702) is accommodated in the U-shaped opening. When the square tongue plate (8) is translated, the U-shaped opening slides along the square tongue peach-picking positioning boss (702) to limit the translation trajectory of the square tongue plate (8). The support arm (804) on the square tongue plate is also used to trigger the first sensor.

6. The linkage lock body structure according to claim 1, characterized in that, The tongue assembly (5) is provided with a tongue rod positioning piece (503), which selectively triggers the second sensor according to the extension or retraction position of the tongue assembly (5).

7. The linkage lock body structure according to claim 1, characterized in that, It also includes a square tongue spring (13) for providing a holding force for the movement of the square tongue peach (7).

8. A door lock, characterized in that, Includes the linkage lock body structure as described in any one of claims 1 to 7.

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