Lock body and electronic lock
By using a motor-driven rotating plate and a limit zone design, combined with the linkage between the identification module and the driver, the problem of hole position differences when replacing the lock body in electronic locks is solved, achieving a convenient door opening experience and improved security, and enhancing the compatibility and functional expandability of the lock body.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-07
AI Technical Summary
Existing electronic locks suffer from poor installation compatibility due to differences in hole positions when replacing the lock body, affecting versatility and user experience.
The rotating plate is driven by a motor. Through the design of the limiting zone and elastic element, the mechanical operation is transformed into motor induction. Combined with the linkage between the identification module and the driver, the problem of hole position difference is solved and the compatibility is improved.
It achieves a convenient door opening experience, reduces energy consumption, improves user experience and security, solves the problem of hole position differences when replacing the lock body, and enhances the compatibility and functional expandability of the lock body.
Smart Images
Figure CN224093155U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a theftproof device, concretely relates to a lock body and electronic lock. BACKGROUND
[0002] The lock body as the core component of the door lock plays a vital role in guaranteeing the safety of home, office and other places. In the electronic lock market, the door opening operation is mostly realized by the handle driving square bar. Since the electronic lock is expensive, when the electronic lock fails, the lock body is usually repaired or replaced. However, the hole position size specifications on the market are complex and various, and the square bar installation position lacks a unified standard, which leads to a large number of fingerprint locks that cannot be adapted to different models of lock bodies due to size mismatch, directly affecting the universality and user experience of the product. SUMMARY
[0003] The utility model aims at providing a lock body and electronic lock, and the technical problem to be solved is to change the door opening mode of the mechanical square bar to the door opening mode of the motor induction, solve the problem of hole position difference when replacing the lock body, and improve the compatibility of the lock body.
[0004] The utility model realizes the following technical schemes:
[0005] The first aspect provides a lock body, which comprises a shell, a lock bolt assembly and a transmission assembly are arranged in the shell, the lock bolt assembly comprises a first lock bolt and a first connecting rod, the first connecting rod is connected to the first lock bolt, a first limiting plate and a second limiting plate are sleeved on the first connecting rod, and a limiting area is formed between the first limiting plate and the second limiting plate.
[0006] The transmission assembly comprises a rotating piece and a driver, the rotating piece is provided with a rotating hole, and the output shaft of the driver is sleeved in the rotating hole.
[0007] The rotating piece is provided with a protrusion, when the protrusion extends to the limiting area and the driver drives the rotating piece to rotate, the protrusion pushes the first connecting rod.
[0008] The original mechanical square bar door opening mode relies on manual operation of the square bar to drive the lock bolt assembly to unlock, while the transmission assembly in the lock body comprises a driver, the rotating piece is driven to rotate by the motor, and then the lock bolt assembly is pushed to realize unlocking, realizing the change from mechanical operation to motor induction, and providing a more convenient door opening experience for the user; the first limiting plate and the second limiting plate sleeved on the first connecting rod form a limiting area, the protrusion of the rotating piece extends into the limiting area, so that the cooperation of the protrusion and the limiting area becomes the key structure for driving the first connecting rod and the first lock bolt to move; after replacing the lock body, it is not necessary to insert the square bar from the outside to make it adapt to the rotating hole on the rotating piece, so that the problem of hole position difference when replacing the lock body is solved, and the compatibility of the lock body is improved.
[0009] Furthermore, the first limiting plate is connected to the housing, and the first connecting rod is fitted with an elastic element, the two ends of which respectively abut against the first locking tongue and the first limiting plate;
[0010] When the aforementioned protrusion disengages from the limiting area, the elastic element pushes the first locking tongue away from the first limiting plate.
[0011] The first locking tongue is reset by means of an elastic element. When the protrusion leaves the limiting area, the elastic element rebounds and pushes the first locking tongue away from the first limiting plate, so that the first locking tongue returns to its initial position (i.e., reset).
[0012] Furthermore, the corner of one end of the aforementioned protrusion is arc-shaped; when the aforementioned protrusion extends into the limiting area, the arc shape is used to contact the second limiting plate.
[0013] The curved inflection point of the protrusion contacting the second limiting plate facilitates its detachment and extension, resolving the issue of sharp edges or flat surfaces contacting the second limiting plate. Prolonged contact with these surfaces can lead to wear, grooves, or burrs, causing jamming. If jamming occurs between the protrusion and the limiting plate, the actuator needs to consume more energy to overcome friction, potentially increasing energy consumption or causing overheating. The curved inflection point, through a continuous curved transition, avoids the impact of sharp-edged collisions, resulting in smoother bolt movement. The curved contact also reduces the coefficient of friction between the protrusion and the limiting plate, allowing the actuator to move the bolt with less torque, thus reducing energy consumption. The smooth contact surface also reduces the sharp noise generated by metal-to-metal friction.
[0014] Furthermore, the aforementioned latch assembly also includes a second latch and a positioning plate, the positioning plate being connected to the second latch and having a positioning groove provided thereon; the positioning groove is provided with a matching positioning block, which is used to extend into the positioning groove.
[0015] To enhance the anti-theft performance of the door lock, multiple bolts are installed. The second bolt is positioned in the retracted state by a positioning block, allowing the door lock to be opened.
[0016] Furthermore, the aforementioned positioning block is provided with a first sleeve, which is rotatably connected to the housing.
[0017] Furthermore, the aforementioned rotating plate is rotatably connected to a second connecting rod, and the aforementioned second connecting rod is provided with a first strip-shaped hole;
[0018] The aforementioned positioning block is provided with a second sleeve, and the second sleeve passes through the first strip hole; when the aforementioned rotating plate rotates, the rotating plate pulls the second connecting rod, and the second sleeve slides in the first strip hole.
[0019] Furthermore, the positioning plate is provided with a second strip-shaped hole, and the first sleeve passes through the second strip-shaped hole; when the positioning plate moves, the first sleeve slides in the second strip-shaped hole.
[0020] The aforementioned positioning block is rotatably connected to the housing via a first sleeve, with the central axis of the first sleeve serving as the fixed point of the positioning block; it is connected to a second connecting rod via a second sleeve, with the second sleeve serving as the moving point of the positioning block; when the current state of the rotating plate is: the protrusion is located within the limiting area, the driver drives the rotating plate to rotate, pulling the second connecting rod towards the first connecting rod; since one end of the second connecting rod is rotatably connected to the rotating plate and the other end is connected to the positioning block, when the second connecting rod moves towards the first connecting rod, the length direction of the second connecting rod gradually shifts, thereby causing the positioning block to rotate around the fixed point.
[0021] The second aspect provides an electronic lock, which includes the lock body and an identification module, wherein the identification module is connected to a driver; the identification module is used to identify data, and when the data matches correctly, it sends an electrical signal.
[0022] The aforementioned driver is used to start upon receiving an electrical signal.
[0023] By combining the improved lock body with the identification module, and enabling unlocking through the linkage between the identification module and the driver, the problem of poor installation compatibility and weak functional expandability of traditional electronic locks is solved, while improving user experience and security.
[0024] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0025] The original mechanical square bar unlocking method relied on manual operation of the square bar to drive the bolt assembly to unlock. However, the transmission component in this lock body includes a driver, which drives the rotating plate to rotate via a motor, thereby pushing the bolt assembly to unlock. This realizes the transformation from mechanical operation to motor-induced operation, providing users with a more convenient unlocking experience. A limiting zone is formed between the first and second limiting plates fitted on the first connecting rod. The protrusion of the rotating plate extends into the limiting zone, making the cooperation between the protrusion and the limiting zone the key structure for driving the movement of the first connecting rod and the first bolt. After replacing the lock body, it is not necessary to insert the square bar from the outside to fit the rotating hole on the rotating plate, thus solving the problem of hole position differences when replacing the lock body and improving the compatibility of the lock body. Attached Figure Description
[0026] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:
[0027] Figure 1 This is a perspective view of the lock body;
[0028] Figure 2 This is a schematic diagram showing the connection of the rotating plate, the second connecting rod, and the positioning block.
[0029] Figure 3 This is a schematic diagram showing the connection between the second locking tongue and the positioning plate.
[0030] Figure 4 These are the four states of the rotating plate.
[0031] The attached diagram shows the markings and corresponding component names:
[0032] 1. Housing; 21. First locking tongue; 22. Second locking tongue; 23. First connecting rod; 24. Positioning plate; 25. Positioning groove; 26. First limiting plate; 27. Second limiting plate; 28. Elastic element; 31. Rotating piece; 32. Rotating hole; 33. Protrusion; 34. Second connecting rod; 35. Positioning block; 41. First strip hole; 42. Second strip hole; 51. First sleeve; 52. Second sleeve. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0034] First embodiment:
[0035] Combination Figures 1 to 3 A lock body includes: a housing 1, wherein a latch assembly and a transmission assembly are disposed within the housing 1; the latch assembly includes a first latch 21 (which may be a beveled latch) and a first connecting rod 23, wherein the first connecting rod 23 is connected to the first latch 21; a first limiting plate 26 and a second limiting plate 27 are sleeved on the first connecting rod 23; the first limiting plate 26 is connected to the housing 1; the second limiting plate 27 moves with the first connecting rod 23; a limiting area is formed between the first limiting plate 26 and the second limiting plate 27;
[0036] The aforementioned transmission assembly includes a rotating plate 31 and a driver (which may be a stepper motor). The rotating plate 31 has a rotating hole 32, and the output shaft of the driver is sleeved in the rotating hole 32.
[0037] The aforementioned rotating plate 31 is provided with a protrusion 33; when the protrusion 33 extends to the limiting area and the driver drives the rotating plate 31 to rotate, the protrusion 33 pushes the first connecting rod 23.
[0038] The original mechanical square bar unlocking method relied on manual operation of the square bar to drive the bolt assembly to unlock. However, the transmission component in this lock body includes a driver, which drives the rotating plate 31 to rotate via a motor, thereby pushing the bolt assembly to unlock. This realizes the transformation from mechanical operation to motor induction, providing users with a more convenient unlocking experience. A limiting area is formed between the first limiting plate 26 and the second limiting plate 27 fitted on the first connecting rod 23. The protrusion 33 of the rotating plate 31 extends into the limiting area, making the cooperation between the protrusion 33 and the limiting area the key structure for driving the movement of the first connecting rod 23 and the first bolt 21. After replacing the lock body, it is not necessary to insert the square bar from the outside to fit the rotating hole 32 on the rotating plate 31, thus solving the problem of hole position differences when replacing the lock body and improving the compatibility of the lock body.
[0039] Second embodiment:
[0040] Based on the first embodiment, the first connecting rod 23 is fitted with an elastic element 28 (which may be a spring), and the two ends of the elastic element 28 respectively abut against the first locking tongue 21 and the first limiting plate 26;
[0041] When the protrusion 33 disengages from the limiting area, the elastic element 28 pushes the first locking tongue 21 away from the first limiting plate 26.
[0042] The first locking tongue 21 is reset by the elastic element 28. When the protrusion 33 leaves the limiting area, the elastic element 28 rebounds and pushes the first locking tongue 21 away from the first limiting plate 26, so that the first locking tongue 21 returns to the initial position (i.e., reset).
[0043] The compression amount of the aforementioned elastic element 28 can be adaptively adjusted according to the change in the stroke of the first latch 21. For example, when the door body is thicker, the latch stroke increases, and the elastic element 28 is further compressed; when the door body is thinner, the elastic element 28 recovers its deformation and can still push the latch to reset; there is no need to customize the lock body for different door body thicknesses, as long as the parameters of the elastic element 28 meet the compression stroke requirements, it can be adapted to various door body thicknesses.
[0044] Third embodiment:
[0045] Based on any of the above embodiments, the corner of one end of the protrusion 33 is arc-shaped; when the protrusion 33 extends to the limiting area, the arc shape is used to contact the second limiting plate 27.
[0046] The inflection point of the protrusion 33 contacting the second limiting plate 27 is set in an arc shape, which facilitates the detachment and extension of the protrusion 33. This solves the problem of sharp edges or flat surfaces contacting the second limiting plate 27. If sharp edges or flat surfaces contact the second limiting plate 27 for a long time, it will easily lead to wear on the surface of the second limiting plate 27, forming grooves or burrs, causing jamming problems. If there is jamming between the protrusion 33 and the limiting plate, the actuator needs to consume more energy to overcome the friction, which may lead to increased energy consumption or overheating of the actuator. When the arc-shaped corner contacts the second limiting plate 27, the impact force generated by the collision of sharp edges is avoided through a continuous curved surface transition, making the movement of the bolt more stable. The arc-shaped contact reduces the coefficient of friction between the protrusion 33 and the limiting plate, allowing the actuator to drive the bolt movement with less torque, thereby reducing energy consumption. The smooth contact surface reduces the sharp noise generated by metal friction.
[0047] Fourth embodiment:
[0048] Based on any of the above embodiments, the above-mentioned latch assembly further includes a second latch 22 (which may be a square latch) and a positioning plate 24. The positioning plate 24 is connected to the second latch 22, and a positioning groove 25 is provided on the positioning plate 24. The positioning groove 25 is provided with a matching positioning block 35, which is used to extend into the positioning groove 25.
[0049] To enhance the anti-theft performance of the door lock, multiple bolts are installed. The second bolt 22 is positioned in the retracted state by the positioning block 35, thus unlocking the door lock.
[0050] In a specific embodiment, the positioning block 35 is provided with a first sleeve 51, which is rotatably connected to the housing 1. The rotating plate 31 is rotatably connected to a second connecting rod 34, which has a first slotted hole 41. The positioning block 35 is provided with a second sleeve 52, which passes through the first slotted hole 41. When the rotating plate 31 rotates, it pulls the second connecting rod 34, causing the second sleeve 52 to slide within the first slotted hole 41. The positioning plate 24 has a second slotted hole 42, through which the first sleeve 51 passes. When the positioning plate 24 moves, the first sleeve 51 slides within the second slotted hole 42.
[0051] The aforementioned positioning block 35 is rotatably connected to the housing 1 via the first sleeve 51, with the central axis of the first sleeve 51 serving as the fixed point of the positioning block 35; it is connected to the second connecting rod 34 via the second sleeve 52, with the second sleeve 52 serving as the moving point of the positioning block 35.
[0052] The rotating plate 31 is divided into four states when the above-mentioned driver rotates (one pulse of the driver rotates 90 degrees, that is, the state of the rotating plate 31 is changed). (See) Figure 4 )as follows:
[0053] First state: Protrusion 33 has just left the limiting area and is located on the right side of the rotating hole 32. The connection point (hereinafter referred to as the connection node) between the second connecting rod 34 and the rotating plate 31 is located on the upper side of the rotating hole 32.
[0054] Second state: Protrusion 33 is located on the lower side of rotating hole 32, and the connecting node is located on the right side of rotating hole 32;
[0055] Third state: Protrusion 33 is located to the left of rotating hole 32, and the connecting node is located below rotating hole 32;
[0056] Fourth state: Protrusion 33 is located on the upper side of rotating hole 32, and the connecting node is located on the left side of rotating hole 32.
[0057] When the rotating plate 31 is in the first state, the driver rotates 90 degrees clockwise to change the first state to the second state. The movement states of each component are as follows: the first locking tongue 21 is in the extended state, the second locking tongue 22 is in the retracted state; the second connecting rod 34 moves downward while the angle shifts to the left, and the second sleeve 52 approaches the upper side of the first strip hole 41. At this time, the positioning block 35 does not rotate.
[0058] The driver continues to rotate 90 degrees clockwise, changing the second state to the third state. The movement states of each component are as follows: the first latch 21 is in the extended state; the second connecting rod 34 moves downward while shifting its angle to the right (restoring the angle of the first state); the upper side of the first strip hole 41 presses down on the second sleeve 52, causing the second sleeve 52 to move downward; the positioning block 35 rotates counterclockwise around a fixed point; at the same time, the positioning block 35 pushes the positioning plate 24 to the left, realizing the extension operation of the second latch 22 (i.e., the second latch 22 is in the extended state).
[0059] The driver continues to rotate 90 degrees clockwise, changing the third state to the fourth state. The movement states of each component are as follows: the protrusion 33 extends into the limiting area, and the first locking tongue 21 is in the extended state; the second connecting rod 34 moves upward while the angle shifts to the right, and the second sleeve 52 approaches the lower side of the first strip hole 41. At this time, the positioning block 35 does not rotate (i.e., the second locking tongue 22 is in the extended state).
[0060] The driver continues to rotate 90 degrees clockwise, changing the fourth state to the first state. The movement states of each component are as follows: the protrusion 33 pushes the second limiting plate 27 to move to the right, realizing the retraction operation of the first locking tongue 21 (i.e., the first locking tongue 21 is in the retracted state), the second connecting rod 34 moves upward while the angle shifts to the left, the lower side of the first strip hole 41 pulls the second sleeve 52 upward, causing the second sleeve 52 to move upward, the positioning block 35 rotates clockwise around the fixed point, and at the same time, the positioning block 35 pushes the positioning plate 24 to move to the right, realizing the retraction operation of the second locking tongue 22 (i.e., the second locking tongue 22 is in the retracted state).
[0061] Fifth embodiment:
[0062] An electronic lock includes the aforementioned lock body and an identification module. The identification module (which may be a fingerprint recognition module, such as HLK-FPM583F or AS608; a face recognition module, such as HLK-FM223 or HLK-FM888; or a multimodal recognition module, such as STM32F103C8T6 (main controller) + AS608 (fingerprint) + HLK-FM223 (face)) is connected to a driver. The identification module is used to identify data, and when the data matches correctly, it sends an electrical signal.
[0063] The aforementioned driver is used to start upon receiving an electrical signal.
[0064] By combining the improved lock body with the identification module, and enabling unlocking through the linkage between the identification module and the driver, the problem of poor installation compatibility and weak functional expandability of traditional electronic locks is solved, while improving user experience and security.
[0065] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A lock body, characterized in that, include: The housing (1) is provided with a locking tongue assembly and a transmission assembly. The locking tongue assembly includes a first locking tongue (21) and a first connecting rod (23). The first connecting rod (23) is connected to the first locking tongue (21). A first limiting plate (26) and a second limiting plate (27) are sleeved on the first connecting rod (23). A limiting area is formed between the first limiting plate (26) and the second limiting plate (27). The transmission assembly includes a rotating plate (31) and a driver. The rotating plate (31) has a rotating hole (32), and the output shaft of the driver is sleeved in the rotating hole (32). The rotating plate (31) is provided with a protrusion (33); when the protrusion (33) extends into the limiting area and the driver drives the rotating plate (31) to rotate, the protrusion (33) pushes the first connecting rod (23).
2. The lock body according to claim 1, characterized in that, The first limiting plate (26) is connected to the housing (1), and the first connecting rod (23) is fitted with an elastic element (28). The two ends of the elastic element (28) respectively abut against the first locking tongue (21) and the first limiting plate (26). When the protrusion (33) disengages from the limiting area, the elastic element (28) pushes the first locking tongue (21) away from the first limiting plate (26).
3. The lock body according to claim 1, characterized in that, The corner of one end of the protrusion (33) is arc-shaped; when the protrusion (33) extends into the limiting area, the arc shape is used to contact the second limiting plate (27).
4. The lock body according to claim 1, characterized in that, The latch assembly also includes a second latch (22) and a positioning plate (24). The positioning plate (24) is connected to the second latch (22). The positioning plate (24) is provided with a positioning groove (25). The positioning groove (25) is provided with a matching positioning block (35), which is used to extend into the positioning groove (25).
5. The lock body according to claim 4, characterized in that, The positioning block (35) is provided with a first sleeve (51), which is rotatably connected to the housing (1).
6. The lock body according to claim 5, characterized in that, The rotating plate (31) is rotatably connected to a second connecting rod (34), and the second connecting rod (34) is provided with a first strip hole (41); The positioning block (35) is provided with a second sleeve (52), and the second sleeve (52) passes through the first strip hole (41); when the rotating plate (31) rotates, the rotating plate (31) pulls the second connecting rod (34), and the second sleeve (52) slides in the first strip hole (41).
7. The lock body according to claim 6, characterized in that, The positioning plate (24) is provided with a second strip hole (42), and the first sleeve (51) passes through the second strip hole (42); when the positioning plate (24) moves, the first sleeve (51) slides in the second strip hole (42).
8. An electronic lock, characterized in that, The electronic lock includes a lock body as described in any one of claims 1 to 7 and an identification module, wherein the identification module is connected to a driver; the identification module is used to identify data and send an electrical signal when the data matches correctly. The driver is activated when it receives an electrical signal.