Lock body device

Abstract

This invention discloses a lock body device, including a housing, a drive mechanism, a main latch, an auxiliary latch, and a transmission component. The housing has a first opening and a second opening, located on adjacent sides of the housing. The drive mechanism is disposed within the housing. The main latch is slidably disposed within the housing. The main latch is connected to the drive mechanism, which can drive at least a portion of the main latch to extend out of the housing through the first opening or retract into the housing. The auxiliary latch is slidably disposed within the housing, with at least a portion extending out of or retracting into the housing through the second opening. The transmission component is located within the housing and rotatably connected to it. The main latch has a sliding shaft. The auxiliary latch has a first toothed portion. The transmission component has a second toothed portion and a first drive groove, and the transmission component engages with the auxiliary latch through the second toothed portion and the first toothed portion. This solution addresses the problem of complex lock body device structures.

Description

Technical Field

[0001] This invention relates to the field of security product technology, and in particular to a lock body device. Background Technology

[0002] Locking devices are important security products. They can be used on security doors, safes, and other equipment to lock them.

[0003] The lock body device includes a housing, a drive mechanism, and a main bolt. Both the drive mechanism and the main bolt are located within the housing. The drive mechanism is connected to the main bolt via a transmission connection. The drive mechanism can drive the main bolt in and out of the housing through a through-hole, thereby enabling the locking and unlocking operations of the lock body device. In related technologies, to further enhance the anti-theft function of the lock body device, auxiliary bolts such as top hooks and bottom hooks are provided. The movement direction of the auxiliary bolts intersects with that of the main bolt. Here, the top hook is an auxiliary bolt that extends or retracts from the top of the housing, while the bottom hook is an auxiliary bolt that extends or retracts from the bottom of the housing.

[0004] To enable the locking and unlocking of the auxiliary bolt, the lock body device has a separate drive mechanism for moving the auxiliary bolt. However, because the lock body device in related technologies has two independent drive mechanisms, the structure of the lock body device is complex, which makes it difficult to manufacture. Summary of the Invention

[0005] This invention discloses a lock body device to solve the problem of complex structure in lock body devices in related technologies.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A lock body device includes a housing, a drive mechanism, a main lock tongue, an auxiliary lock tongue, and a transmission component;

[0008] The housing has a first opening and a second opening, located on adjacent sides of the housing; the drive mechanism is disposed within the housing; the main locking tongue is slidably disposed within the housing; the main locking tongue is connected to the drive mechanism, which can drive at least a portion of the main locking tongue to extend out of the housing or retract into the housing through the first opening; the auxiliary locking tongue is slidably disposed within the housing, and at least a portion of the auxiliary locking tongue extends out of or retracts into the housing through the second opening; the transmission component is located within the housing and is rotatably connected to the housing.

[0009] The main locking tongue is provided with a sliding shaft; the auxiliary locking tongue is provided with a first toothed portion; the transmission component is provided with a second toothed portion and a first driving groove, and the transmission component and the auxiliary locking tongue are engaged through the second toothed portion and the first toothed portion; the sliding shaft and the first driving groove are slidably engaged along the extending direction of the first driving groove;

[0010] When the main latch moves outward from the housing, the sliding shaft drives the transmission member to rotate about a first rotation direction, and the transmission member drives the auxiliary latch to move outward from the housing; when the main latch moves inward from the housing, the sliding shaft drives the transmission member to rotate about a second rotation direction, and the transmission member drives the auxiliary latch to move inward from the housing; wherein the first rotation direction is opposite to the second rotation direction.

[0011] The technical solution adopted in this invention can achieve the following beneficial effects:

[0012] The lock body device disclosed in this invention includes a transmission component. When the drive mechanism drives the main latch to move in and out of the housing, the main latch drives the auxiliary latch to move in and out of the housing via the transmission component. In this solution, the transmission component enables the linkage between the main latch and the auxiliary latch, thus eliminating the need for a separate drive component for the auxiliary latch. This allows the main latch and the auxiliary latch to share a common drive mechanism, simplifying the structure of the lock body device and reducing its manufacturing difficulty. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0014] Figure 1 This is an exploded view of the lock body device disclosed in an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the lock body device disclosed in an embodiment of the present invention;

[0016] Figure 3 for Figure 2 A partial schematic diagram;

[0017] Figure 4 This is a partial schematic diagram of the lock body device disclosed in an embodiment of the present invention;

[0018] Figures 5 to 13 This is a schematic diagram of the structure of some components of the lock body device disclosed in an embodiment of the present invention;

[0019] Figures 14 to 23 This is a partial schematic diagram of the lock body device disclosed in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100 - Shell, 101 - First opening, 102 - Second opening;

[0022] 200-Drive mechanism, 210-Drive source, 220-Drive gear, 221-First protrusion, 222-Clutch protrusion, 230-Transmission gear, 231-Clutch groove, 232-Fourth toothed part, 2321-First tooth, 2322-Second tooth, 2323-First included angle, 2324-Second included angle, 240-Square tongue drive component, 2401-Third toothed part, 2402-Sliding protrusion, 241-Toothed component, 242-Strip rotating component, 250-Elastic component, 251-Fixed ring, 252-Elastic ring body, 260-Square body;

[0023] 300-Main locking tongue, 310-Square tongue, 311-Second driving groove, 312-First limiting groove, 313-Second limiting groove, 320-Angled tongue, 321-Second protrusion, 301-Sliding shaft, 301a-First sliding shaft, 301b-Second sliding shaft;

[0024] 400-Auxiliary locking tongue, 401-First toothed portion, 410-First auxiliary locking tongue, 420-Second auxiliary locking tongue;

[0025] 500-Transmission component, 501-Second toothed portion, 502-First drive groove, 503-Rotating body, 504-Strip extension, 510-First transmission component, 520-Second transmission component;

[0026] 600 - Preset gap. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0028] The technical solutions disclosed in the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 23As shown in the figure, an embodiment of the present invention discloses a lock body device, which includes a housing 100, a drive mechanism 200, a main lock tongue 300, an auxiliary lock tongue 400, and a transmission component 500.

[0030] The housing 100 is the basic mounting component of the lock body device, providing a mounting base for components such as the drive mechanism 200, main latch 300, auxiliary latch 400, and transmission component 500. The housing 100 has a receiving space and a first opening 101 and a second opening 102 communicating with the receiving space, with the first opening 101 and the second opening 102 located on adjacent sides of the housing 100. The aforementioned drive mechanism 200, main latch 300, auxiliary latch 400, and transmission component 500 can be installed within the receiving space. Different housing 100 structures result in different components. For example, the housing 100 may include a base and a cover, with the base having a receiving groove and the cover covering the opening of the receiving groove, in which case the base and cover enclose the receiving space. Alternatively, the cover can be placed on the cover. Another example is that the housing 100 may include a base, a cover, and an end plate, with the end plate sealing one side of the base and cover, in which case the housing 100 consists of three parts. The aforementioned first opening 101 and second opening 102 can be located on the base. Of course, the shell 100 can also be other structures, which are not limited in this article.

[0031] The drive mechanism 200 is disposed within the housing 100, specifically within the receiving space. The drive mechanism 200 is the power component of the lock body device. The main latch 300 is slidably disposed within the housing 100. The main latch 300 is connected to the drive mechanism 200, which can drive at least a portion of the main latch 300 to extend out of the housing 100 through the first opening 101 or retract into the housing 100.

[0032] The main latch 300 is the locking component in the lock body device. The main latch 300 has a locked position and an unlocked position. When the main latch 300 is in the locked position, it extends to a preset position, at which point it is fully extended, or it can be understood as extending into the latch slot of the door frame, thereby locking the door panel to the door frame. When the main latch 300 is in the unlocked position, it retracts to a preset position, at which point it is fully retracted, or it can be understood as retracting from the latch slot of the door frame, thereby unlocking the door panel to the door frame. The drive mechanism 200 can drive the main latch 300 to switch between the locked and unlocked positions. When the main latch 300 is in a position between the locked and unlocked positions, it is in a partially extended or partially retracted position. When the main latch 300 is in a partially extended or partially retracted position, the door panel and door frame may still be locked, or they may be unlocked. This is related to the width of the door gap. The unlocked and locked positions here refer to the two extreme positions of the main latch 300.

[0033] The auxiliary latch 400 is slidably disposed within the housing 100, and at least a portion of the auxiliary latch 400 extends or retracts into the housing 100 through the second opening 102. The auxiliary latch 400 is also used to lock the door panel and door frame, with the main latch 300 and the auxiliary latch 400 locking different positions on the door frame. Since the first opening 101 and the second opening 102 are located on adjacent sides of the housing 100, the main latch 300 and the auxiliary latch 400 are locked on adjacent sides of the door frame. For example, the auxiliary latch 400 can be a top latch, in which case the second opening 102 is located at the top of the housing 100, and the auxiliary latch 400 extends from the top of the housing 100, thereby locking to the top position of the door frame. Alternatively, the auxiliary latch 400 can be a bottom latch, in which case the second opening 102 is located at the bottom of the housing 100, and the auxiliary latch 400 extends from the bottom of the housing 100, thereby locking to the bottom position of the door frame.

[0034] The transmission component 500 is located inside the housing 100 and is rotatably connected to the housing 100. At this time, the transmission component 500 and the housing 100 can be rotatably connected via a rotating shaft, and the transmission component 500 rotates around the rotating shaft. The main locking tongue portion 300 is provided with a sliding shaft 301. The auxiliary locking tongue portion 400 is provided with a first toothed portion 401. The transmission component 500 is provided with a second toothed portion 501 and a first driving groove 502. The transmission component 500 and the auxiliary locking tongue 400 mesh through the second toothed portion 501 and the first toothed portion 401. At this time, both the transmission component 500 and the auxiliary locking tongue 400 are toothed structural components, therefore the transmission component 500 meshes with the auxiliary locking tongue 400. The sliding shaft 301 and the first driving groove 502 are slidably engaged along the extending direction of the first driving groove 502. At this time, the sliding shaft 301 can slide within the first driving groove 502.

[0035] In specific operation, when the drive mechanism 200 drives the main locking tongue 300 to switch from the unlocked position to the locked position, the main locking tongue 300 moves in a direction outward from the housing 100. As the main locking tongue 300 moves in this direction, the sliding shaft 301 also moves in the same direction, causing it to slide within the first drive groove 502. The sliding shaft 301 exerts a force on the side wall of the first drive groove 502, driving the transmission member 500 to rotate around the first rotation direction. This causes the transmission member 500 to move the auxiliary locking tongue 400 in a direction outward from the housing 100. At this time, when the main locking tongue 300 extends, the auxiliary locking tongue 400 also extends, thus linking the extension of the main locking tongue 300 and the auxiliary locking tongue 400.

[0036] When the drive mechanism 200 drives the main latch 300 to switch from the locked position to the unlocked position, the main latch 300 moves inward toward the housing 100. As the main latch 300 moves inward toward the housing 100, the sliding shaft 301 also moves inward toward the housing 100, causing the sliding shaft 301 to slide within the first drive groove 502. The sliding shaft 301 exerts a force on the side wall of the first drive groove 502, driving the transmission member 500 to rotate around the second rotation direction. This causes the transmission member 500 to move the auxiliary latch 400 inward toward the housing 100. At this time, when the main latch 300 retracts, the auxiliary latch 400 also retracts, thus linking the retraction of the main latch 300 and the auxiliary latch 400.

[0037] When the main locking tongue 300 switches between the extended and retracted positions, its movement direction is opposite. Therefore, the sliding shaft 301 also moves in the opposite direction when the main locking tongue 300 switches between the extended and retracted positions. Due to the reverse movement of the sliding shaft 301, the rotation direction of the transmission component 500 driven by the sliding shaft 301 is also opposite, thus driving the auxiliary locking tongue 400 to move in two parallel and opposite directions of extension and retraction.

[0038] In the embodiments disclosed in this application, since the auxiliary locking tongue 400 and the main locking tongue 300 are linked, when the main locking tongue 300 is in the unlocked position, the auxiliary locking tongue 400 is also in the unlocked position; when the main locking tongue 300 is in the locked position, the auxiliary locking tongue 400 is also in the locked position.

[0039] In the embodiments disclosed in this application, the transmission member 500 can realize the linkage between the main locking tongue 300 and the auxiliary locking tongue 400. Therefore, there is no need to set a separate driving component for driving the auxiliary locking tongue 400. Thus, the main locking tongue 300 and the auxiliary locking tongue 400 can use a common drive mechanism 200, thereby simplifying the structure of the lock body device and reducing the manufacturing difficulty of the lock body device.

[0040] In addition, the transmission component 500 and the auxiliary locking tongue 400 adopt a meshing transmission method with a transmission ratio of 1:1, which can effectively improve transmission efficiency, reduce transmission damage, and thus improve the transmission performance of the auxiliary locking tongue 400.

[0041] Optionally, the transmission component 500 can be disc-shaped, but other structures are not limited hereof.

[0042] In an optional embodiment, the transmission component 500 may include a rotating body 503 and a strip-shaped extension 504, which are fixedly connected. The rotating body 503 is rotatably connected to the housing 100. The rotating body 503 may be provided with a first toothed portion 401, and the strip-shaped extension 504 may be provided with a first driving groove 502. In this embodiment, the rotating body 503 is used to engage with the auxiliary locking tongue 400, and the strip-shaped extension 504 is slidably engaged with the main locking tongue 300. In this case, the volumes of both the rotating body 503 and the strip-shaped extension 504 can be set to be relatively small, thus making the overall volume of the transmission component 500 smaller, thereby reducing the volume of the lock body device.

[0043] In another embodiment, the distance between the rotation center of the transmission member 500 and the sliding shaft 301 can be a first value; the pitch circle radius of the first toothed portion 401 can be a second value. For example... Figures 14 to 16In this context, B represents the distance between the rotation center of the transmission member 500 and the sliding shaft 301; A represents the pitch circle radius of the first toothed portion 401. As the main locking tongue 300 moves inward toward the housing 100, the ratio between the second and first values ​​can gradually increase. This refers to the gradual increase in the ratio between the second and first values ​​during the transition from the locked to the unlocked position of the main locking tongue 300. Since the pitch circle radius of the first toothed portion 401 remains constant, the second value is a fixed value. Therefore, during the transition from the locked to the unlocked position of the main locking tongue 300, the distance between the rotation center of the transmission member 500 and the sliding shaft 301 gradually decreases.

[0044] In this scheme, the line connecting the rotation center of the transmission component 500 and the sliding shaft 301 can be regarded as a lever, and the pitch circle radius can be regarded as the lever arm. During the process of the main locking tongue 300 switching from the locked position to the unlocked position, the angle of the lever gradually increases. Therefore, the transmission component 500 can effectively amplify the force of the main locking tongue 300, thereby improving the transmission efficiency of the auxiliary locking tongue 400 more effectively.

[0045] Furthermore, when the main latch 300 is in the locked position, the distance between the rotation center of the transmission member 500 and the sliding shaft 301 is relatively large, thus the transmission member 500 acts as a force-saving lever, allowing the main latch 300 to more easily move the auxiliary latch 400. Conversely, during the transition from the locked to the unlocked position, as the distance between the rotation center of the transmission member 500 and the sliding shaft 301 decreases, the transmission member 500 becomes a force-reducing lever, but the component force of the transmission member 500 gradually increases, enabling the auxiliary latch 400 to retract quickly. Therefore, the transmission member 500 disclosed in this application can achieve a combination of gear transmission and lever transmission, thereby improving the transmission efficiency of the lock body device.

[0046] In a specific scheme, such as Figure 14 As shown, when the main locking tongue 300 is in the locked position, the ratio of the first value to the second value can be approximately 2:1. Figure 15 The attached diagram shows the main latch retracting by half (300°). At this point, the ratio of the first value to the second value can be approximately 1.5:1. Figure 16 As shown, when the main latch 300 is in the unlocked position, the ratio of the first value to the second value can be approximately 1:1. At this time, the first drive groove 502 is close to the vertical position, so the component force of the sliding shaft 301 on the first drive groove 502 is close to the driving force of the main latch 300, thus causing the auxiliary latch 400 to be subjected to a larger force.

[0047] In another alternative scheme, the number of auxiliary locking tongues 400 can be at least two, namely a first auxiliary locking tongue 410 and a second auxiliary locking tongue 420. Here, the first auxiliary locking tongue 410 can be a top hook, and the second auxiliary locking tongue 420 can be a bottom hook. Therefore, the movement directions of the first auxiliary locking tongue 410 and the second auxiliary locking tongue 420 are opposite. The number of sliding shafts 301 can be at least two, namely a first sliding shaft 301a and a second sliding shaft 301b. The number of transmission members 500 can be at least two, namely a first transmission member 510 and a second transmission member 520. The first auxiliary locking tongue 410 and the second auxiliary locking tongue 420 can be located on both sides of the main locking tongue portion 300. The first auxiliary locking tongue 410 engages with the first transmission member 510, and the first transmission member 510 is slidably connected to the first sliding shaft 301a. The second auxiliary locking tongue 420 engages with the second transmission member 520, and the second transmission member 520 is slidably connected to the second sliding shaft 301b.

[0048] In this design, the main bolt 300 can be linked with two auxiliary bolts 400, thus further improving the anti-theft performance of the lock body device.

[0049] In another alternative embodiment, the main latch 300 may include a square latch 310 and a beveled latch 320, which may be spaced apart within the housing 100. Both the square latch 310 and the beveled latch 320 may be connected to the drive mechanism 200, and the sliding shaft 301 may be disposed on the square latch 310. This embodiment can further improve the anti-theft and security performance of the lock body device.

[0050] Optionally, the first opening 101 can be a large opening, and the square tongue 310 and the oblique tongue 320 can both be opposite to the first opening 101, so as to enter and exit the first opening 101. Alternatively, there can be multiple first openings 101, and the square tongue 310 and the oblique tongue 320 can enter and exit the housing 100 through the corresponding first opening 101.

[0051] In the above embodiment, when the main latch 300 is in the locked position, the square latch 310 and the oblique latch 320 are fully extended, and the length of the square latch 310 extending out of the housing 100 is greater than the length of the oblique latch 320 extending out of the housing 100. In related technologies, the drive mechanism 200 usually drives the square latch 310 and the oblique latch 320 to move simultaneously. At this time, because the extension length of the square latch 310 is larger, the oblique latch 320 is retracted first. Since the oblique latch 320 is retracted first, the positioning effect between the door panel and the door frame is lost. If the door panel receives an external force at this time, such as pushing the door continuously during the unlocking process of the lock body device or a large load on the deadbolt, and the pushing force is greater than the unlocking force of the square latch 310, then the square latch 310 will be pressed tightly against the strike plate and cannot be retracted, thus making it impossible to unlock and open the door.

[0052] Based on this, in another alternative embodiment, the drive mechanism 200 may include a drive source 210, a drive gear 220, and a transmission gear 230. The drive source 210 may be fixed inside the housing 100. Both the drive gear 220 and the transmission gear 230 may be rotatably connected to the housing 100, and the drive gear 220 may be driveably connected to the transmission gear 230. The transmission gear 230 may be driveably connected to the square tongue 310.

[0053] The drive source 210 can be connected to the drive gear 220 for transmission. The drive gear 220 is provided with a first protrusion 221, and the oblique tongue 320 can be provided with a second protrusion 321; the first protrusion 221 can be limited and engaged with the second protrusion 321 in the direction in which the oblique tongue 320 retracts into the housing 100.

[0054] When the main latch 300 is in the locked position, there is a preset gap 600 between the first protrusion 221 and the second protrusion 321. At this time, the main latch 300 has an intermediate movement position, that is, the main latch 300 can have a first unlocking position, which is a position between the locked position and the unlocked position. The preset gap 600 can be 4 to 5 mm, and of course, the preset gap 600 can also be other values, which are not limited in this article.

[0055] In the specific operation, during the switching of the main locking tongue 300 from the locked position to the first unlocking position, the drive mechanism 200 can drive the drive gear 220 to rotate. The drive gear 220 drives the square tongue 310 to move inward toward the housing 100 through the transmission gear 230, and the first protrusion 221 rotates to abut against the second protrusion 321. When the main locking tongue 300 is in the locked position, both the square tongue 310 and the oblique tongue 320 are in the fully extended state. During the switching of the main locking tongue 300 from the locked position to the first unlocking position, the drive source 210 drives the square tongue 310 to partially retract through the drive gear 220 and the transmission gear 230. Then, since the main latch 300 is in the locked position, the first protrusion 221 on the drive gear 220 and the second protrusion 321 on the latch 320 have a preset gap 600. Therefore, during the process of the main latch 300 switching from the locked position to the first unlocked position, the latch 320 is not driven and therefore does not retract. During this process, only the square latch 310 retracts while the latch 320 does not. Therefore, the square latch 310 can move to the same position as the extended length of the latch 320.

[0056] During the process of switching the main latch 300 from the first unlocked position to the unlocked position, the drive gear 220 can drive the slant latch 320 and the square latch 310 to move inward toward the housing 100. At this time, in the first unlocked position, the first protrusion 221 and the second protrusion 321 are in contact. Therefore, when the drive gear 220 rotates again in the same direction, the slant latch 320 is also driven, thus causing the slant latch 320 and the square latch 310 to be driven to retract together.

[0057] In this solution, the square tongue 310 is first retracted a certain distance so that the extended lengths of the square tongue 310 and the oblique tongue 320 are similar. Then, the square tongue 310 and the oblique tongue 320 are retracted simultaneously. This ensures that the oblique tongue 320 maintains a positioning effect on the door panel and door frame during the retraction of the square tongue 310, thus avoiding the risk that the square tongue 310 will be pressed against the strike plate and cannot be retracted.

[0058] Optionally, the drive source 210 can be a servo motor or a three-phase asynchronous motor. Of course, the drive source 210 can also be other power structures, which are not limited in this article.

[0059] In another optional embodiment, the drive mechanism 200 may further include a square tongue drive member 240, which may be provided with a third toothed portion 2401 and a sliding protrusion 2402. The square tongue drive member 240 may be rotatably connected to the housing 100. The square tongue 310 may be provided with a second drive groove 311. The third toothed portion 2401 may mesh with the transmission gear 230. The sliding protrusion 2402 may slide in cooperation with the second drive groove 311 along the extending direction of the second drive groove 311.

[0060] When the transmission gear 230 drives the square tongue drive 240 to rotate, the sliding protrusion 2402 can move within the second drive groove 311, and the sliding protrusion 2402 drives the square tongue 310 to move in a direction toward the inside or outside of the housing 100.

[0061] Specifically, such as Figure 14 As shown, when the transmission gear 230 drives the square tongue drive 240 to rotate clockwise, the square tongue 310 switches from the extended position to the retracted position; when the transmission gear 230 drives the square tongue drive 240 to rotate counterclockwise, the square tongue 310 switches from the retracted position to the extended position.

[0062] This solution simplifies the connection between the transmission gear 230 and the square tongue 310, thus reducing the manufacturing cost of the lock body device.

[0063] In the above embodiments, the drive source 210 can be a drive motor, and the drive mechanism 200 can further include a cube 260. The aforementioned drive gear 220 and transmission gear 230 can both be mounted on the cube 260, in which case the drive gear 220 and transmission gear 230 are coaxially arranged. The cube 260 can rotate relative to the housing 100. Here, the drive gear 220 rotates relative to the cube 260, while the transmission gear 230 rotates synchronously with the cube 260. The cube 260 is connected to a door handle or knob, therefore the cube 260 is a component used for manually opening the door.

[0064] At this point, the lock body device typically has two unlocking and locking methods: manual unlocking and locking, and motor-driven unlocking and locking. When the drive motor is running, it can drive the transmission gear 230 via the drive gear 220, thereby driving the latch 310. However, because the drive gear 220 is connected to the transmission gear 230, when the user uses the manual unlocking and locking method, the drive motor is linked to the manual operating mechanism, which can easily damage the drive motor, resulting in a shorter service life.

[0065] Based on this, in another alternative scheme, one of the drive gear 220 and the transmission gear 230 may be provided with a clutch groove 231, and the other may be provided with a clutch protrusion 222. The clutch protrusion 222 can slide and engage with the clutch groove 231 along the extension direction of the clutch groove 231.

[0066] When the clutch protrusion 222 and the clutch slide groove 231 are engaged in a limiting fit along the movement direction of the drive gear 220, the drive motor drives the transmission gear 230 to rotate through the drive gear 220, so that the square tongue 310 switches between the retracted position and the extended position. At this time, the clutch protrusion 222 can abut against the end of one end of the clutch slide groove 231, so that the clutch protrusion 222 and the clutch slide groove 231 can be relatively stationary, thereby realizing the linkage between the drive gear 220 and the transmission gear 230.

[0067] With the clutch protrusion 222 and clutch slide groove 231 in sliding engagement, the driven gear of the handle or lock cylinder can rotate relative to the driving gear 220, and the driven gear can drive the square tongue 310 to switch between the retracted position and the extended position. At this time, the square tongue 310 is driven manually. The clutch protrusion 222 and clutch slide groove 231 can slide relative to each other.

[0068] In another alternative embodiment, the drive mechanism 200 may further include an elastic element 250, one end of which may be connected to the square latch drive element 240, and the other end of which may be connected to the housing 100. The main latch portion 300 may also have a second unlocking position.

[0069] In the specific operation process, when the main lock tongue 300 switches from the first unlocking position to the second unlocking position, the driving force of the drive mechanism 200 on the square tongue drive member 240 can be greater than the driving force of the elastic member 250 on the square tongue drive member 240. The drive mechanism 200 simultaneously drives the oblique tongue 320 and the square tongue 310 to move inward toward the housing 100.

[0070] During the process of the main lock tongue 300 switching from the second unlock position to the unlock position, the driving force of the drive mechanism 200 on the square tongue drive member 240 is less than the driving force of the elastic member 250 on the square tongue drive member 240, and the elastic member 250 drives the square tongue 310 to move inward toward the housing 100.

[0071] In the specific operation process, when the square tongue 310 is retracted to a certain position, the driving force of the drive mechanism 200 on the square tongue drive member 240 is less than the driving force of the elastic member 250 on the square tongue drive member 240. At this time, the action of the elastic member 250 assisting the square tongue 310 to retract will be faster than the speed at which the drive motor pulls the oblique tongue 320. Therefore, the square tongue 310 is retracted into the housing 100 first compared to the oblique tongue 320, further avoiding the risk that the square tongue 310 cannot be retracted.

[0072] Optionally, the elastic element 250 can be a torsion spring, but of course, the elastic element 250 can also be other structures, which are not limited here.

[0073] In one alternative embodiment, the elastic element 250 may include a retaining ring 251 and an elastic ring body 252. The first end of the elastic ring body 252 is connected to the retaining ring 251, which is used to connect to the housing 100. The other end of the elastic ring body 252 may be connected to the square tongue drive member 240. The end of the elastic ring body 252 connected to the square tongue drive member 240 is the force-applying end, and the force of the elastic ring body 252 is applied to the square tongue drive member 240 through the force-applying end.

[0074] In another optional embodiment, the transmission gear 230 may have a fourth toothed portion 232, which may include a first tooth 2321 and a plurality of second teeth 2322. The plurality of second teeth 2322 may be located on one side of the first tooth 2321 and are spaced apart. The angle between the first tooth 2321 and an adjacent second toothed portion 501 may be a first angle 2323. The angle between any two adjacent second teeth 2322 may be a second angle 2324. The first angle 2323 is greater than the second angle 2324. When the main locking tongue 300 is in the unlocked position, the third toothed portion 2401 engages with the first tooth 2321.

[0075] In this design, the first included angle 2323 is greater than the second included angle 2324, thus ensuring that the third toothed portion 2401 and the fourth toothed portion 232 will not disengage during transmission, guaranteeing the continuity of force transmission and the stability of the transmission mechanism. It also ensures that when the square tongue 310 is fully retracted, the square tongue 310 transmission component 500 and the transmission gear 230 can travel an additional idle stroke, thereby ensuring that the oblique tongue 320 can retract further without affecting the square tongue 310.

[0076] In one alternative, the difference between the second included angle 2324 and the first included angle 2323 can be greater than or equal to 5°. This arrangement further ensures the distance of the tongue 320.

[0077] In another optional embodiment, the square tongue 310 may also have a first limiting groove 312, which may be located at one end of the second driving slide groove 311 and communicate with it. The first limiting groove 312 may be bent relative to the second driving slide groove 311. The main lock tongue 300 may also have a third unlocking position, in which the square tongue 310 is in a fully retracted state when the main lock tongue 300 is in the third unlocking position.

[0078] During the process of switching the main lock tongue 300 from the second unlocking position to the third unlocking position, the driving force of the drive mechanism 200 on the square tongue drive member 240 is less than the driving force of the elastic member 250 on the square tongue drive member 240. When switching from the third unlocking position to the unlocking position, the drive mechanism 200 drives the square tongue 310 to rotate relative to the square tongue drive member 240, so that the sliding protrusion 2402 slides into the first limiting groove 312 and abuts against the groove wall of the first limiting groove 312.

[0079] In this design, after the square tongue 310 retracts to its position, the oblique tongue 320 continues to retract a certain distance. This is to provide sufficient distance for the drive motor to brake and stop, thereby reducing the reverse impact received by the drive motor gearbox and improving the safety of the lock body device.

[0080] In addition, the sliding protrusion 2402 slides into the first limiting groove 312. The sliding protrusion 2402 relies on the elastic member 250 to give it a large locking force, thereby preventing external force from easily causing the main locking tongue 300 to move.

[0081] For example, when slamming a door, if there is no locking point, inertia will cause the square bolt 310 to extend, and at the moment of closing the door, the square bolt 310 will hit the door frame. Another example is that when the auxiliary bolt 400 is under heavy load, due to gravity, if there is no locking point, after the lock body device successfully unlocks, gravity will pull the square bolt 310 out again, causing unlocking failure.

[0082] The first limiting groove 312 in this application can provide a large locking force to the sliding protrusion 2402 when the elastic element 250 is engaged, so that the sliding protrusion 2402 can restrict the square tongue 310 to the unlocked position, avoiding the risk of the square tongue 310 accidentally extending.

[0083] Similarly, the square tongue 310 may also have a second limiting groove 313, which may be located at the end of the second drive slide 311 opposite to the first limiting groove 312 and connected to the second drive slide 311. The bending directions of the first limiting groove 312 and the second limiting groove 313 are opposite to those of the second drive slide 311. When the main locking tongue 300 is in the locked position, the sliding protrusion 2402 is located in the second limiting groove 313 and abuts against the groove wall of the second limiting groove 313.

[0084] In this design, the second limiting groove 313 can provide a large locking force to the sliding protrusion 2402 when the elastic element 250 is engaged, so that the sliding protrusion 2402 can restrict the square tongue 310 to the locked position, thus avoiding the risk of the square tongue 310 retracting unexpectedly.

[0085] In one alternative embodiment, the square latch drive 240 may include a toothed member 241 and a bar-shaped rotating member 242. The toothed member 241 may be connected to the bar-shaped rotating member 242 and coaxially arranged. The toothed member 241 may be provided with a third toothed portion 2401, and the bar-shaped drive member 500 may be provided with a sliding protrusion 2402. This embodiment makes the overall volume of the square latch drive 240 smaller, thereby reducing the volume of the lock body device.

[0086] In one alternative approach, Figure 18 A schematic diagram showing the main locking tongue 300 in the locked position; Figure 19 A schematic diagram showing the main lock tongue 300 in the first unlocking position; Figure 20 A schematic diagram showing the main lock tongue 300 in the second unlocking position; Figure 23 A schematic diagram showing the main lock tongue 300 in the third unlocking position; Figure 4 and Figure 16 A schematic diagram showing the main locking tongue 300 in the unlocked position.

[0087] In one alternative design, the width of the door gap is 2 to 4 mm. For example... Figure 18 As shown, when the main latch 300 is in the locked position, the extension length of the square latch 310 is greater than the extension length of the oblique latch 320. When the main latch 300 switches from the locked position to the unlocked position, the main latch 300 first moves from the locked position to the first unlocked position, as shown... Figure 19As shown, in the first unlocked position, the square latch 310 retracts a certain length, while the extension length of the bevel latch 320 remains unchanged. Moving from the first unlocked position to the second unlocked position, the drive mechanism 200 simultaneously drives both the square latch 310 and the bevel latch 320. At this time, the extension amounts of the square latch 310 and the bevel latch 320 are the same. Since the extension amounts of both the square latch 310 and the bevel latch 320 are greater than the width of the door gap, the door panel remains locked. In the second unlocked position, the elastic force of the elastic element 250 increases, therefore the elastic force of the elastic element 250 is greater than the force exerted by the drive mechanism 200 on the square latch 310, thus... Figures 20 to 23 As shown, the square tongue 310 retracts faster, thus retracting into place first. When the square tongue 310 retracts into place, the oblique tongue 320 has not yet fully retracted, so it still has some protrusion. However, this protrusion is less than or equal to 1mm, therefore it does not affect the opening and closing of the door panel. Figure 23 In this case, the door panel is unlocked. To ensure that the latch 320 retracts completely, two empty strokes are designed. One empty stroke is when the angle between the first protrusion 2321 and an adjacent second tooth 501 is greater than the angle between any two adjacent second protrusions 2322. The other empty stroke is the first limiting groove 312. Under the drive of the drive gear 220, the latch drive member 240 can rotate at a certain angle, so that the sliding protrusion 2402 enters the first limiting groove 312 from the end of the second drive groove 311, while ensuring that the position of the square latch 310 remains unchanged. Therefore, the main latch 300 is finally in the position as shown. Figure 4 and Figure 16 The location shown.

[0088] Optionally, when the sliding protrusion 2402 is at the end of the second drive groove 311, the square tongue drive member 240 can rotate 3°, so that the sliding protrusion 2402 abuts against the first limiting groove 312. Of course, the square tongue drive member 240 can also rotate at other angles, which are not limited herein.

[0089] The above embodiments of the present invention focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0090] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A lock body device, characterized by It includes a housing (100), a drive mechanism (200), a main locking tongue (300), an auxiliary locking tongue (400), and a transmission component (500). The housing (100) has a first opening (101) and a second opening (102), which are located on adjacent sides of the housing (100); the drive mechanism (200) is disposed within the housing (100); the main locking tongue (300) is slidably disposed within the housing (100); the main locking tongue (300) is connected to the drive mechanism (200), and the drive mechanism (200) can drive the... At least a portion of the main latch (300) extends out of the housing (100) or retracts into the housing (100) through the first opening (101); the auxiliary latch (400) is slidably disposed within the housing (100), and at least a portion of the auxiliary latch (400) extends out of or retracts into the housing (100) through the second opening (102); the transmission member (500) is located within the housing (100) and is rotatably connected to the housing (100); The main locking tongue (300) is provided with a sliding shaft (301); the auxiliary locking tongue (400) is provided with a first toothed portion (401); the transmission member (500) is provided with a second toothed portion (501) and a first drive groove (502), the transmission member (500) and the auxiliary locking tongue (400) are engaged by the second toothed portion (501) and the first toothed portion (401); the sliding shaft (301) and the first drive groove (502) are slidably engaged along the extension direction of the first drive groove (502); the distance between the rotation center of the transmission member (500) and the sliding shaft (301) is a first value, and the pitch circle radius of the first toothed portion (401) is a second value. When the main latch (300) moves outward toward the housing (100), the sliding shaft (301) drives the transmission member (500) to rotate around a first rotation direction, and the transmission member (500) drives the auxiliary latch (400) to move outward toward the housing (100); when the main latch (300) moves inward toward the housing (100), the sliding shaft (301) drives the transmission member (500) to rotate around a second rotation direction, and the transmission member (500) drives the auxiliary latch (400) to move inward toward the housing (100), and the ratio between the second value and the first value gradually increases; wherein, the first rotation direction is opposite to the second rotation direction.

2. The lock body device of claim 1, wherein The transmission component (500) includes a rotating body (503) and a strip-shaped extension (504). The rotating body (503) and the strip-shaped extension (504) are fixedly connected. The rotating body (503) is rotatably connected to the housing (100). The rotating body (503) is provided with the first toothed portion (401), and the strip-shaped extension (504) is provided with the first drive groove (502).

3. The lock body assembly of claim 1, wherein, The number of auxiliary locking tongues (400) is at least two, namely a first auxiliary locking tongue (410) and a second auxiliary locking tongue (420); the number of sliding shafts (301) is at least two, namely a first sliding shaft (301a) and a second sliding shaft (301b); the number of transmission members (500) is at least two, namely a first transmission member (510) and a second transmission member (520); the first auxiliary locking tongue (410) and the second auxiliary locking tongue (420) are respectively located on both sides of the main locking tongue portion (300); the first auxiliary locking tongue (410) engages with the first transmission member (510), and the first transmission member (510) is slidably connected to the first sliding shaft (301a); the second auxiliary locking tongue (420) engages with the second transmission member (520), and the second transmission member (520) is slidably connected to the second sliding shaft (301b).

4. The lock body assembly of claim 1, wherein, The main locking tongue (300) includes a square tongue (310) and a slanted tongue (320). The square tongue (310) and the slanted tongue (320) are spaced apart within the housing (100). Both the square tongue (310) and the slanted tongue (320) are connected to the driving mechanism (200). The sliding shaft (301) is located on the square tongue (310).

5. The lock body assembly of claim 4, wherein, The main latch (300) has a locked position, a first unlocked position, and an unlocked position; when the main latch (300) is in the locked position, the square latch (310) and the oblique latch (320) are fully extended, and the length of the square latch (310) extending out of the housing (100) is greater than the length of the oblique latch (320) extending out of the housing (100); The drive mechanism (200) includes a drive source (210), a drive gear (220), and a transmission gear (230). The drive source (210) is fixed inside the housing (100). The drive gear (220) and the transmission gear (230) are rotatably connected to the housing (100), and the drive gear (220) is drive-connected to the transmission gear (230). The transmission gear (230) is drive-connected to the square tongue (310). The drive source (210) is connected to the drive gear (220) for transmission; the drive gear (220) is provided with a first protrusion (221), and the oblique tongue (320) is provided with a second protrusion (321); the first protrusion (221) can be retracted into the housing (100) along the direction of the oblique tongue (320) and limit the engagement with the second protrusion (321); When the main locking tongue (300) is in the locked position, there is a preset gap (600) between the first protrusion (221) and the second protrusion (321). During the process of the main locking tongue (300) switching from the locked position to the first unlocking position, the drive mechanism (200) drives the drive gear (220) to rotate, and the drive gear (220) drives the square tongue (310) to move in the direction toward the inside of the housing (100) through the transmission gear (230), and the first protrusion (221) rotates to a position that abuts against the second protrusion (321); During the process of the main locking tongue (300) switching from the first unlocking position to the unlocking position, the drive gear (220) drives the oblique tongue (320) and the square tongue (310) to move toward the inside of the housing (100).

6. The lock body assembly of claim 5, wherein, The drive mechanism (200) further includes a square tongue drive member (240), which has a third toothed portion (2401) and a sliding protrusion (2402). The square tongue drive member (240) is rotatably connected to the housing (100). The square tongue (310) has a second drive groove (311), and the third toothed portion (2401) meshes with the transmission gear (230). The sliding protrusion (2402) and the second drive groove (311) slide in cooperation along the extension direction of the second drive groove (311). When the transmission gear (230) drives the square tongue drive member (240) to rotate, the sliding protrusion (2402) can move within the second drive groove (311), and the sliding protrusion (2402) drives the square tongue (310) to move in a direction toward the inside or outside of the housing (100).

7. The lock body assembly of claim 6, wherein, The drive gear (220) and the transmission gear (230) are coaxially arranged; one of the drive gear (220) and the transmission gear (230) is provided with a clutch groove (231), and the other is provided with a clutch protrusion (222). The clutch protrusion (222) can slide and engage with the clutch groove (231) along the extension direction of the clutch groove (231).

8. The lock body assembly of claim 7, wherein, The drive mechanism (200) further includes an elastic element (250), one end of which is connected to the square tongue drive element (240), and the other end of which is connected to the housing (100); the main lock tongue (300) also has a second unlocking position; During the process of the main locking tongue (300) switching from the first unlocking position to the second unlocking position, the driving force of the driving mechanism (200) on the square tongue driving member (240) is greater than the driving force of the elastic member (250) on the square tongue driving member (240). The driving mechanism (200) simultaneously drives the oblique tongue (320) and the square tongue (310) to move toward the inside of the housing (100). During the process of the main locking tongue (300) switching from the second unlocking position to the unlocking position, the driving force of the driving mechanism (200) on the square tongue driving member (240) is less than the driving force of the elastic member (250) on the square tongue driving member (240), and the elastic member (250) drives the square tongue (310) to move in the direction of the housing (100).

9. The lock body assembly of claim 8, wherein, The transmission gear (230) has a fourth toothed portion (232), which includes a first tooth (2321) and a plurality of second teeth (2322). The plurality of second teeth (2322) are located on one side of the first tooth (2321) and are spaced apart. The angle between the first tooth (2321) and an adjacent second toothed portion (501) is a first angle (2323). The angle between any two adjacent second teeth (2322) is a second angle (2324). The first angle (2323) is greater than the second angle (2324). When the main locking tongue (300) is in the unlocked position, the third toothed portion (2401) meshes with the first tooth (2321).

10. The lock body assembly of claim 9, wherein, The difference between the second included angle (2324) and the first included angle (2323) is greater than or equal to 5°.

11. The lock body assembly of claim 9, wherein, The square tongue (310) is also provided with a first limiting groove (312), which is located at one end of the second driving slide (311) and is connected to the second driving slide (311). The first limiting groove (312) is bent relative to the second driving slide (311). The main lock tongue (300) also has a third unlocking position. When the main lock tongue (300) is in the third unlocking position, the square tongue (310) is in a fully retracted state. The main lock tongue (300) is unlocked by the second... During the process of switching the position to the third unlocking position, the driving force of the driving mechanism (200) on the square tongue driving member (240) is less than the driving force of the elastic member (250) on the square tongue driving member (240); when switching from the third unlocking position to the unlocking position, the driving mechanism (200) drives the square tongue (310) to rotate relative to the square tongue driving member (240) so that the sliding protrusion (2402) slides into the first limiting groove (312) and abuts against the groove wall of the first limiting groove (312).

12. The lock body device according to claim 11, characterized in that, The square tongue (310) is also provided with a second limiting groove (313), which is located at the end of the second drive slide (311) away from the first limiting groove (312) and is connected to the second drive slide (311); the first limiting groove (312) and the second limiting groove (313) are bent in opposite directions relative to the second drive slide (311); when the main locking tongue (300) is in the locked position, the sliding protrusion (2402) is located in the second limiting groove (313) and abuts against the groove wall of the second limiting groove (313).

13. The lock body assembly of claim 6, wherein, The square tongue drive member (240) includes a toothed member (241) and a strip-shaped rotating member (242). The toothed member (241) is connected to the strip-shaped rotating member (242) and is coaxially arranged. The toothed member (241) is provided with the third toothed portion (2401), and the strip-shaped rotating member (242) is provided with the sliding protrusion (2402).

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