Self-elastic structure with main lock plunger and upper and lower connecting rods capable of being separated

Abstract

The invention relates to the technical field of locks, in particular to a main lock bolt and upper and lower connecting rod separable self-elastic structure. The self-elastic structure capable of separating the main lock bolt from the upper connecting rod and the lower connecting rod comprises a driving fluted disc set which is arranged in a lock shell and has an unlocking action and a back locking action; the connecting rod assembly is arranged in the lock shell, the connecting rod assembly is meshed with one fluted disc in the driving fluted disc set, and when the driving fluted disc set conducts unlocking action or counter locking action, the connecting rod assembly is driven to retract or pop out of the lock shell; the back locking assembly is arranged in the lock shell, the back locking assembly comprises a back locking tooth piece and a first elastic piece, the back locking tooth piece is meshed with one fluted disc in the driving fluted disc set, and the first elastic piece is connected with the back locking tooth piece; when the driving fluted disc set conducts back locking action, the first elastic piece is used for providing elastic driving force for the back locking tooth piece, so that the back locking tooth piece drives the driving fluted disc set to rotate in a back locking mode.

Description

Technical Field

[0001] This invention relates to the field of lock technology, specifically to a self-springing structure in which the main bolt and the upper and lower connecting rods can be separated. Background Technology

[0002] In existing locks, the upper and lower linkages and the gear assembly mechanism generally adopt a series linkage structure design. This means that during locking, the upper and lower linkages and the gear assembly mechanism remain linked, making separation impossible. Consequently, the self-springing function of the upper and lower linkages and the function of the gear assembly driving the bolt to lock are interdependent and cannot operate independently. The direct drawback of this series linkage structure is that when the upper and lower linkages encounter resistance or obstacles during self-springing (such as jamming by foreign objects or installation misalignment), their movement is restricted. This prevents the gear assembly mechanism from continuing to move, ultimately causing the bolt to fail to extend properly and preventing the lock from locking, severely impacting the safety and reliability of the lock. Summary of the Invention

[0003] This invention provides a self-springing structure that allows the main bolt and upper and lower connecting rods to be separated, in order to solve the problem that when the upper and lower connecting rods encounter resistance or obstacles during the self-springing process, the movement of the upper and lower connecting rods will be restricted, which will prevent the gear plate assembly mechanism from continuing to move, and ultimately cause the bolt to fail to extend normally and fail to complete the anti-locking operation of the lock body.

[0004] This invention provides a self-springing structure with a separable main bolt and upper and lower connecting rods, comprising:

[0005] A drive gear assembly is disposed within a lock housing and has an unlocking action and a locking action. A linkage assembly is disposed within the lock housing. The linkage assembly meshes with one of the gears in the drive gear assembly. When the drive gear assembly performs an unlocking or anti-locking action, it drives the linkage assembly to retract or eject from the lock housing. A deadbolt assembly is disposed within a lock housing. The deadbolt assembly includes a deadbolt tooth and a first elastic element. The deadbolt tooth meshes with one of the toothed discs in the drive toothed disc assembly. The first elastic element is connected to the deadbolt tooth. When the drive gear assembly performs a reverse locking action, the first elastic element provides an elastic driving force to the reverse locking tooth, so that the reverse locking tooth drives the drive gear assembly to rotate in reverse lock.

[0006] Beneficial effects: By incorporating a deadbolt assembly, when the drive gear assembly encounters resistance or obstacles and cannot continue to move, the deadbolt teeth and the first elastic element can provide additional driving force to the drive gear assembly, ensuring that the drive gear assembly completes the deadbolt action, thereby improving the safety and reliability of the lock.

[0007] In one optional embodiment, the drive gear assembly includes a first gear and a second gear. The first gear meshes with the connecting rod assembly, and the second gear meshes with the anti-locking gear. The first gear has a paddle, and the second gear has a push rod structure that abuts against the paddle. During the anti-locking action, the first gear rotates in a first direction, and the paddle abuts against the push rod structure to drive the second gear to rotate in the first direction. Simultaneously, the anti-locking gear drives the second gear to rotate in the first direction. During the unlocking action, the second gear rotates in a second direction opposite to the first direction, and the push rod structure abuts against the paddle to drive the first gear to rotate in the second direction.

[0008] Beneficial effects: Through the coordinated operation of the first and second gear discs, and the cooperation of the paddle and push rod structure, the drive gear disc assembly achieves smooth operation during locking and unlocking. Especially during the locking action, even if the first gear disc encounters resistance or obstacles, the second gear disc can still complete the locking action under the drive of the locking teeth and the first elastic element, ensuring the reliability and security of the lock.

[0009] In one alternative embodiment, the second gear has an extension, the push rod structure includes a stroke pin and a stroke sleeve, the extension has a connecting hole, one end of the stroke pin is fixed in the connecting hole, the stroke sleeve is sleeved on the outer surface of the stroke pin, and the stroke sleeve abuts against the paddle.

[0010] Beneficial effects: By incorporating an extension, a stroke pin, and a stroke bushing, the push rod structure can stably engage with the paddle, and when the first gear rotates, the paddle applies a thrust to the push rod structure, thereby driving the second gear to rotate. This not only improves the transmission efficiency of the drive gear assembly but also enhances the stability and reliability of the structure.

[0011] In one alternative embodiment, the paddle has an abutment surface on the side facing the travel bushing, the abutment surface matching the outer contour of the travel bushing.

[0012] Beneficial effects: The contact surface makes the contact between the paddle and the travel bushing tighter, reducing gaps and wobble during movement and improving the accuracy and stability of the transmission.

[0013] In one optional embodiment, the lock housing is fixedly provided with a toothed disc pin, the drive toothed disc assembly is sleeved on the toothed disc pin, and the toothed disc pin is provided with a retaining ring, which is used to limit the axial movement of the first toothed disc.

[0014] Beneficial effects: By setting the toothed disc pin, a stable rotation center is provided for the drive toothed disc assembly. At the same time, the retaining ring axially limits the first toothed disc, preventing axial displacement and separation from the connecting rod assembly during rotation, effectively improving the stability and reliability of the structure.

[0015] In one optional embodiment, the linkage assembly includes an upper linkage, a lower linkage, and a linkage gear. The upper linkage has a first toothed portion that meshes with a drive gear assembly. The upper linkage and the lower linkage are spaced apart and arranged in parallel. The linkage gear is disposed between the upper linkage and the lower linkage. The upper linkage and the lower linkage each have a second toothed portion and a third toothed portion that mesh with the linkage gear.

[0016] Beneficial effects: By incorporating a linkage gear, the upper and lower linkages are linked to extend or retract, enabling the linkage assembly to operate smoothly under the drive of the drive gear assembly. This also improves the stability and reliability of the structure, ensuring the normal operation of the lock.

[0017] In one alternative embodiment, it further includes: a second elastic element, the second elastic element providing an elastic driving force for ejecting the lock housing from the upper link and / or the lower link.

[0018] Beneficial effects: By incorporating a second elastic element, additional elastic driving force is provided to the upper and / or lower linkage. This allows the linkage assembly to overcome resistance encountered during ejection, ensuring smooth ejection from the lock housing. This not only improves the lock's reliability but also enhances its ability to cope with complex environments, guaranteeing normal operation even when encountering significant resistance or obstacles.

[0019] In one optional embodiment, the lock housing is provided with a first fixing part, which is disposed on one side of the upper connecting rod and / or the lower connecting rod, and the upper connecting rod and / or the lower connecting rod is provided with a second fixing part, wherein the second elastic element is a spring, and the two ends of the spring are respectively connected to the first fixing part and the second fixing part.

[0020] Beneficial effects: By connecting the first and second fixing parts with springs, the structure is simple and easy to install. It can stably provide elastic driving force for the linkage assembly, effectively improving the stability and reliability of the linkage assembly, thereby ensuring the normal operation of the entire lock system.

[0021] In one optional embodiment, the upper connecting rod and the lower connecting rod are provided with guide grooves, and the lock housing is fixedly provided with a pair of oppositely arranged sliding pins. The pair of sliding pins are respectively located on both sides of the linkage gear, and the sliding pins are slidably connected to the guide grooves.

[0022] Beneficial effects: By creating guide grooves on the upper and lower connecting rods and setting sliding pins on the lock housing that are slidably connected to the guide grooves, precise guidance is provided for the retraction and ejection of the connecting rod assembly, effectively preventing the connecting rod assembly from deviating and jamming during movement, and ensuring the smoothness and accuracy of the moving connecting rod assembly.

[0023] In one optional embodiment, the anti-locking assembly further includes an anti-locking plate bushing, the anti-locking tooth has a bushing hole, one end of the anti-locking plate bushing is fixed in the bushing hole, the first elastic element is a torsion spring, the torsion spring is sleeved on the anti-locking plate bushing, and the two lever arms of the torsion spring abut against the anti-locking tooth and the lock housing respectively.

[0024] Beneficial effects: By setting up a locking plate bushing and a torsion spring, a stable elastic driving force is provided for the locking plate, ensuring that the locking plate can respond accurately and quickly when driving the gear assembly to perform locking and unlocking actions. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a front view of a self-springing structure with a separable main bolt and upper and lower connecting rods according to an embodiment of the present invention; Figure 2 This is an exploded view of a self-springing structure with a separable main bolt and upper and lower connecting rods according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the first toothed disc according to an embodiment of the present invention; Figure 4 This is an exploded view of the drive gear assembly according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures: 1. Lock housing; 11. Gear pin; 12. Sliding pin; 13. First fixing part; 14. Anti-lock pin; 2. Drive gear assembly; 21. First gear; 22. Paddle; 221. Abutment surface; 23. Second gear; 231. Extension; 232. Connecting hole; 24. Push rod structure; 241. Stroke pin; 242. Stroke bushing; 3. Connecting rod assembly; 31. Upper connecting rod; 311. First toothed part; 312. Second toothed part; 32. Lower connecting rod; 321. Third toothed part; 33. Linkage gear; 34. Guide groove; 4. Anti-lock assembly; 41. Anti-locking toothed piece; 42. First elastic element; 43. Anti-locking piece bushing; 5. Snap ring; 6. Second elastic element; 7. Second fixing part. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The following is combined with Figures 1 to 4 The following describes embodiments of the present invention.

[0030] According to an embodiment of the present invention, a self-locking structure with a separable main bolt and upper and lower connecting rods is provided, comprising: a drive gear assembly 2, a connecting rod assembly 3, and a deadbolt assembly 4. The drive gear assembly 2 is disposed within a lock housing 1 and has unlocking and deadbolt actions. The connecting rod assembly 3 is disposed within the lock housing 1 and engages with one of the gears in the drive gear assembly 2. When the drive gear assembly 2 performs an unlocking or deadbolt action, it drives the connecting rod assembly 3 to retract or eject from the lock housing 1. The deadbolt assembly 4 is disposed within the lock housing 1 and includes a deadbolt tooth 41 and a first elastic element 42. The deadbolt tooth 41 engages with one of the gears in the drive gear assembly 2, and the first elastic element 42 is connected to the deadbolt tooth 41. When the drive gear assembly 2 performs a deadbolt action, the first elastic element 42 provides an elastic driving force to the deadbolt tooth 41, causing the deadbolt tooth 41 to drive the drive gear assembly 2 to rotate in a deadbolt position.

[0031] Specifically, the drive gear assembly 2, the connecting rod assembly 3, and the deadbolt assembly 4 are disposed within the lock housing 1. The drive gear assembly 2 can perform unlocking and deadbolt actions during unlocking and deadbolt operations. During unlocking and deadbolt actions, the drive gear assembly 2 rotates in a first direction and a second direction, respectively, with the first and second directions having opposite rotation directions. During unlocking and deadbolt actions, the drive gear assembly 2 drives the connecting rod assembly 3 to retract or extend the lock housing 1. When the connecting rod assembly 3 extends the lock housing 1, it drives the deadbolt hooks inside the door to extend; when the connecting rod assembly 3 retracts the lock housing 1, it drives the deadbolt hooks inside the door to retract. The anti-locking assembly 4 is located on one side of the drive gear assembly 2. The anti-locking tooth 41 meshes with one of the gears in the drive gear assembly 2. When the drive gear assembly 2 performs an anti-locking action, the first elastic element 42 applies an elastic driving force to the anti-locking tooth 41. The anti-locking tooth 41 applies a driving force to the drive gear assembly 2 to complete the anti-locking action, that is, provides a driving force for the drive gear assembly 2 to rotate in the second direction. When the drive gear assembly 2 encounters resistance or obstacles and cannot continue to move, it can still complete the anti-locking action under the drive of the anti-locking tooth 41 and the first elastic element 42. When the drive gear assembly 2 performs an unlocking action, the drive gear assembly 2 rotates in the first direction. At the same time, the drive gear assembly 2 drives the anti-locking tooth 41 to rotate. The anti-locking tooth 41 compresses the first elastic element 42, causing the first elastic element 42 to reset.

[0032] By setting the anti-locking component 4, when the drive gear assembly 2 encounters resistance or obstacles and cannot continue to move, the anti-locking tooth 41 and the first elastic element 42 can provide additional driving force to the drive gear assembly 2, ensuring that the drive gear assembly 2 completes the anti-locking action, thereby improving the safety and reliability of the lock.

[0033] In one embodiment, the drive gear assembly 2 includes a first gear 21 and a second gear 23. The first gear 21 meshes with the connecting rod assembly 3, and the second gear 23 meshes with the anti-locking gear 41. The first gear 21 has a paddle 22, and the second gear 23 has a push rod structure 24 that abuts against the paddle 22. When performing the anti-locking action, the first gear 21 rotates in a first direction, and the paddle 22 abuts against the push rod structure 24 to drive the second gear 23 to rotate in the first direction. At the same time, the anti-locking gear 41 drives the second gear 23 to rotate in the first direction. When performing the unlocking action, the second gear 23 rotates in a second direction opposite to the first direction, and the push rod structure 24 abuts against the paddle 22 to drive the first gear 21 to rotate in the second direction.

[0034] Specifically, such as Figures 1 to 3As shown, the first gear disc 21 and the second gear disc 23 are coaxially arranged, with the first gear disc 21 located below the second gear disc 23. The first gear disc 21 and the second gear disc 23 each have a paddle 22 and a push rod structure 24. During the anti-locking action, the first gear disc 21 rotates in the first direction, and the paddle 22 abuts against the push rod structure 24. The paddle 22 applies a pushing force to the push rod structure 24, driving the second gear disc 23 to rotate in the first direction. The first gear disc 21 engages with the push rod structure 24. When the first gear disc 21 rotates in the first direction, it drives the push rod structure 24 to pop out from the lock housing 1. During the rotation, due to the presence of the anti-locking tooth 41 and the first elastic element 42, the anti-locking tooth 41 also drives the second gear disc 23 to rotate in the first direction, causing the push rod structure 24 to gradually separate from the paddle 22. The first gear disc 21 will not encounter resistance or obstacles, thus completing the anti-locking action and causing the push rod structure 24 to pop out from the lock housing 1. During the unlocking action, the second gear 23 rotates in the second direction, and the push rod structure 24 abuts against the paddle 22, applying a pushing force to the paddle 22 to drive the first gear 21 to rotate in the second direction. While the first gear 21 rotates, it drives the push rod structure 24 to retract into the lock case 1. When the second gear 23 rotates, it also drives the anti-locking tooth 41 to rotate, so that the anti-locking tooth 41 is reset. During the reset process of the anti-locking tooth 41, it provides a driving force to the first elastic element 42, so that the first elastic element 42 is reset.

[0035] Through the coordinated operation of the first gear 21 and the second gear 23, and the cooperation of the paddle 22 and the push rod structure 24, the drive gear assembly 2 achieves smooth operation in locking and unlocking actions. Especially in the locking action, even if the first gear 21 encounters resistance or obstacles, the second gear 23 can still complete the locking action under the drive of the locking tooth 41 and the first elastic element 42, ensuring the reliability and security of the lock.

[0036] In one embodiment, the second gear plate 23 has an extension 231, and the push rod structure 24 includes a stroke pin 241 and a stroke sleeve 242. The extension 231 has a connecting hole 232. One end of the stroke pin 241 is fixed in the connecting hole 232, and the stroke sleeve 242 is sleeved on the outer surface of the stroke pin 241. The stroke sleeve 242 abuts against the paddle 22.

[0037] Specifically, such as Figure 4 As shown, one side of the second gear disk 23 has an extension 231, which extends away from the center of the second gear disk 23 to form a protruding structure. A connecting hole 232 is provided on the extension 231. One end of the stroke pin 241 extends into the connecting hole 232 and is fixedly connected to it. The diameter of the end of the stroke pin 241 extending into the connecting hole 232 is smaller than the diameter of the stroke pin 241 itself. A stroke sleeve 242 is fitted onto the outer surface of the stroke pin 241, and the stroke sleeve 242 abuts against the lever 22.

[0038] By providing the extension 231, the stroke pin 241, and the stroke sleeve 242, the push rod structure 24 can stably abut against the paddle 22. When the first gear 21 rotates, the paddle 22 applies a thrust to the push rod structure 24, thereby driving the second gear 23 to rotate. This not only improves the transmission efficiency of the drive gear assembly 2 but also enhances the stability and reliability of the structure.

[0039] In one embodiment, the paddle 22 has an abutment surface 221 on the side facing the travel sleeve 242, and the abutment surface 221 matches the outer contour of the travel sleeve 242.

[0040] Specifically, such as Figure 3 As shown, the contact surface 221 makes the contact between the paddle 22 and the travel sleeve 242 tighter, reducing gaps and wobbling during movement and improving the accuracy and stability of transmission.

[0041] In one embodiment, the lock housing 1 is fixedly provided with a toothed disc pin 11, the drive toothed disc assembly 2 is sleeved on the toothed disc pin 11, and the toothed disc pin 11 is provided with a retaining ring 5, which is used to limit the first toothed disc 21 axially.

[0042] Specifically, such as Figure 2 and Figure 3 As shown, the gear pin 11 is fixed to the lock housing 1, and the drive gear assembly 2 can rotate axially with the gear pin 11 as the center. The first gear 21 and the second gear 23 are sleeved on the gear pin 11, so that the first gear 21 and the second gear 23 can rotate around the gear pin 11. The retaining ring 5 is disposed between the first gear 21 and the second gear 23, and the retaining ring 5 is locked in the gear pin 11 to limit the axial direction of the first gear 21.

[0043] By setting the toothed disc pin 11, a stable rotation center is provided for the drive toothed disc assembly 2. At the same time, the retaining ring 5 axially limits the first toothed disc 21 to prevent the first toothed disc 21 from displacing axially and separating from the connecting rod assembly 3 during rotation, which effectively improves the stability and reliability of the structure.

[0044] In one embodiment, the linkage assembly 3 includes an upper linkage 31, a lower linkage 32, and a linkage gear 33. The upper linkage 31 has a first toothed portion 311 that meshes with the drive gear assembly 2. The upper linkage 31 and the lower linkage 32 are spaced apart and arranged in parallel. The linkage gear 33 is disposed between the upper linkage 31 and the lower linkage 32. The upper linkage 31 and the lower linkage 32 each have a second toothed portion 312 and a third toothed portion 321 that mesh with the linkage gear 33.

[0045] Specifically, such as Figure 2 and Figure 3As shown, the lock housing 1 has protrusions on both sides for the upper connecting rod 31 and the lower connecting rod 32 to extend. The ends of the upper connecting rod 31 and the lower connecting rod 32 away from the protrusions are respectively provided with a second toothed portion 312 and a third toothed portion 321, which mesh with the second toothed portion 312, the third toothed portion 321, and the linkage gear 33. The upper connecting rod 31 also has a first toothed portion 311 that meshes with the first gear disc 21. When the first gear disc 21 rotates, the first toothed portion 311 drives the upper connecting rod 31 to extend or retract. When the upper connecting rod 31 extends or retracts, the second toothed portion 312 drives the linkage gear 33 to rotate, and the linkage gear 33 then drives the lower connecting rod 32 to extend or retract via the third toothed portion 321. The linkage gear 33 is rotatably mounted on the lock housing 1 via a fixing pin.

[0046] By setting the linkage gear 33, the upper linkage 31 and the lower linkage 32 are linked to pop out or retract, enabling the linkage assembly 3 to operate smoothly under the drive of the drive gear group 2. At the same time, it also improves the stability and reliability of the structure, ensuring the normal use of the lock.

[0047] In one embodiment, it further includes a second elastic element 6. The second elastic element 6 provides an elastic driving force for the upper link 31 and / or the lower link 32 to eject the locking housing 1.

[0048] Specifically, such as Figure 2 and Figure 3 As shown, the second elastic element 6 is disposed on one side of the upper connecting rod 31. When the drive gear assembly 2 performs the anti-locking action, the second elastic element 6 provides the upper connecting rod 31 with an elastic driving force to eject the lock shell 1. When the connecting rod assembly 3 encounters resistance during the ejection process driven by the drive gear assembly 2, the elastic driving force of the second elastic element 6 can assist the upper connecting rod 31 to overcome the resistance and continue to eject. At the same time, the lower connecting rod 32 is driven to eject together through the linkage gear 33, ensuring that the upper connecting rod 31 can smoothly reach the ejection position.

[0049] In other embodiments, a second elastic element 6 is provided on one side of both the upper connecting rod 31 and the lower connecting rod 32, and the second elastic element 6 can provide elastic driving force to the upper connecting rod 31 and the lower connecting rod 32 respectively; or, a second elastic element 6 is provided on one side of the lower connecting rod 32, and the second elastic element 6 provides elastic driving force to the lower connecting rod 32, and the lower connecting rod 32 drives the upper connecting rod 31 to pop out together through the linkage gear 33.

[0050] By incorporating a second elastic element 6, additional elastic driving force is provided to the upper link 31 and / or the lower link 32. This allows the link assembly 3 to overcome resistance encountered during ejection by relying on the elastic force of the second elastic element 6, ensuring that the link assembly 3 can smoothly eject the lock housing 1. This not only improves the reliability of the lock but also enhances its ability to cope with complex environments, ensuring normal operation of the lock even when encountering significant resistance or obstacles.

[0051] In one embodiment, the lock housing 1 is provided with a first fixing part 13, which is located on one side of the upper connecting rod 31 and / or the lower connecting rod 32. The upper connecting rod 31 and / or the lower connecting rod 32 is provided with a second fixing part 7. The second elastic element 6 is a spring, and the two ends of the spring are respectively connected to the first fixing part 13 and the second fixing part 7.

[0052] Specifically, such as Figure 2 and Figure 3 As shown, the second elastic element 6 is a spring with collars at both ends. The first fixing part 13 is located on the protruding side of the lock housing 1 and simultaneously on one side of the upper connecting rod 31. The first fixing part 13 is inclined on the lock housing 1, and there is an angle of less than 90° between the first fixing part 13 and the bottom of the lock housing 1, forming a snap-fit ​​position. The collar at one end of the spring is fitted onto the first fixing part 13 and snapped into the snap-fit ​​position. The second fixing part 7 is formed on the upper connecting rod 31, and the collar at the other end of the spring is fitted onto the second fixing part 7. The second fixing part 7 is arranged opposite to the first fixing part 13 so that the spring and the upper connecting rod 31 are parallel to each other. When the drive gear assembly 2 performs the unlocking action to drive the upper connecting rod 31 to pop out, the elastic restoring force of the spring can assist the upper connecting rod 31 in overcoming resistance and continuing to pop out. When the upper connecting rod 31 retracts into the lock housing 1, the spring is stretched and accumulates elastic force.

[0053] In other embodiments, the first fixing part 13 may be disposed on one side of the lower connecting rod 32, or disposed on one side of the upper connecting rod 31 and the lower connecting rod 32 respectively; the second fixing part 7 may be formed on the lower connecting rod 32, or both the upper connecting rod 31 and the lower connecting rod 32 may be provided with the second fixing part 7.

[0054] By connecting the first fixing part 13 and the second fixing part 7 with a spring, the structure is simple and easy to install. It can stably provide elastic driving force for the linkage assembly 3, effectively improving the stability and reliability of the linkage assembly 3, and thus ensuring the normal operation of the entire lock system.

[0055] Furthermore, the distance from the end of the paddle 22 to the center of the first toothed disc 21 is the length of the lever arm of the paddle 22. When the length of the lever arm of the paddle 22 is set to more than twice the radius of the first toothed disc 21, a force-saving lever structure will be formed. The paddle 22 only needs to apply a pulling force less than half of the maximum tension of the spring to push back the linkage assembly 3.

[0056] In one embodiment, the upper connecting rod 31 and the lower connecting rod 32 are provided with guide grooves 34, and the lock housing 1 is fixedly provided with a pair of oppositely arranged sliding pins 12. The pair of sliding pins 12 are respectively located on both sides of the linkage gear 33, and the sliding pins 12 are slidably connected to the guide grooves 34.

[0057] Specifically, such as Figure 3As shown, the upper connecting rod 31 and the lower connecting rod 32 are provided with guide grooves 34 at the ends away from the protrusion of the lock housing 1. A pair of sliding pins 12 are located on both sides of the linkage gear 33 and fixed to the lock housing 1. The sliding pins 12 are slidably connected to the guide grooves 34. When the upper connecting rod 31 and the lower connecting rod 32 retract and pop out, the sliding pins 12 can slide relative to each other along the guiding direction of the guide grooves 34.

[0058] By opening guide grooves 34 on the upper link 31 and the lower link 32, and setting a sliding pin 12 on the lock housing 1 that is slidably connected to the guide grooves 34, precise guidance is provided for the retraction and ejection of the link assembly 3, effectively preventing the link assembly 3 from deviating and jamming during the movement, and ensuring the smoothness and accuracy of the movement of the link assembly 3.

[0059] In one embodiment, the anti-locking assembly 4 further includes an anti-locking plate bushing 43, an anti-locking tooth 41 having a bushing hole, one end of the anti-locking plate bushing 43 being fixed in the bushing hole, and a first elastic element 42 being a torsion spring, which is sleeved on the anti-locking plate bushing 43, with the two lever arms of the torsion spring abutting against the anti-locking tooth 41 and the lock housing 1 respectively.

[0060] Specifically, such as Figure 2 As shown, the lock housing 1 is fixedly equipped with a deadbolt 14. A deadbolt tooth 41 is sleeved on the deadbolt 14 through a bushing hole. The deadbolt tooth 41 can rotate with the deadbolt 14 as the center. One end of the deadbolt sleeve 43 is fixed to the bushing hole and sleeved on the deadbolt 14. A torsion spring is sleeved on the deadbolt sleeve 43, and the two lever arms of the torsion spring abut against the deadbolt tooth 41 and the lock housing 1, respectively. When the drive gear assembly 2 performs a deadbolt action, the torsion spring applies an elastic driving force to the deadbolt tooth 41, causing the deadbolt tooth 41 and the drive second gear 23 to rotate in the first direction. When the drive gear assembly 2 performs an unlocking action, the second gear 23 drives the deadbolt tooth 41 to reset, and the deadbolt tooth 41 drives the torsion spring to reset, preparing for the next deadbolt action.

[0061] By setting the anti-locking plate bushing 43 and the torsion spring, a stable elastic driving force is provided for the anti-locking tooth 41, ensuring that the anti-locking tooth 41 can respond accurately and quickly when driving the toothed disc group 2 to perform anti-locking and unlocking actions.

[0062] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A main lock bolt and upper and lower link separable self-ejecting structure, characterized by, include: A drive gear assembly (2) is disposed inside a lock housing (1) and has an unlocking action and a locking action. Linkage assembly (3) is disposed inside the lock housing (1). The linkage assembly (3) meshes with one of the gears in the drive gear assembly (2). When the drive gear assembly (2) performs an unlocking or locking action, it drives the linkage assembly (3) to retract or eject from the lock housing (1). The anti-locking assembly (4) is disposed inside the lock housing (1). The anti-locking assembly (4) includes an anti-locking tooth (41) and a first elastic element (42). The anti-locking tooth (41) meshes with one of the toothed discs in the drive toothed disc assembly (2). The first elastic element (42) is connected to the anti-locking tooth (41). When the drive gear assembly (2) performs a reverse locking action, the first elastic element (42) is used to provide elastic driving force to the reverse locking tooth (41) so that the reverse locking tooth (41) drives the drive gear assembly (2) to reverse lock rotation.

2. The main lock bolt and upper and lower link separable self-ejection structure according to claim 1, characterized in that, The drive gear assembly (2) includes a first gear (21) and a second gear (23). The first gear (21) meshes with the connecting rod assembly (3), and the second gear (23) meshes with the anti-locking gear (41). The first gear (21) has a paddle (22), and the second gear (23) has a push rod structure (24) that abuts against the paddle (22). When performing the anti-locking action, the first gear (21) rotates in a first direction, and the paddle (22) abuts against the push rod structure (24) to drive the second gear (23) to rotate in the first direction. At the same time, the anti-locking gear (41) drives the second gear (23) to rotate in the first direction. When performing the unlocking action, the second gear (23) rotates in a second direction opposite to the first direction, and the push rod structure (24) abuts against the paddle (22) to drive the first gear (21) to rotate in the second direction.

3. The self-springing structure with separable main bolt and upper and lower connecting rods according to claim 2, characterized in that, The second gear plate (23) has an extension (231), and the push rod structure (24) includes a stroke pin (241) and a stroke sleeve (242). The extension (231) has a connecting hole (232). One end of the stroke pin (241) is fixed in the connecting hole (232), and the stroke sleeve (242) is sleeved on the outer surface of the stroke pin (241). The stroke sleeve (242) abuts against the paddle (22).

4. The self-springing structure with separable main bolt and upper and lower connecting rods according to claim 3, characterized in that, The paddle (22) has an abutment surface (221) on the side facing the travel bushing (242), and the abutment surface (221) matches the outer contour of the travel bushing (242).

5. The self-springing structure with separable main bolt and upper and lower connecting rods according to claim 2, characterized in that, The lock housing (1) is fixedly provided with a toothed disc pin (11), the drive toothed disc assembly (2) is sleeved on the toothed disc pin (11), the toothed disc pin (11) is provided with a retaining ring (5), the retaining ring (5) is used to limit the first toothed disc (21) axially.

6. The self-springing structure with separable main bolt and upper and lower connecting rods according to any one of claims 1 to 5, characterized in that, The connecting rod assembly (3) includes an upper connecting rod (31), a lower connecting rod (32), and a linkage gear (33). The upper connecting rod (31) has a first tooth profile (311) that meshes with the drive gear assembly (2). The upper connecting rod (31) and the lower connecting rod (32) are spaced apart and arranged in parallel. The linkage gear (33) is disposed between the upper connecting rod (31) and the lower connecting rod (32). The upper connecting rod (31) and the lower connecting rod (32) respectively have a second tooth profile (312) and a third tooth profile (321) that mesh with the linkage gear (33).

7. The self-springing structure with separable main bolt and upper and lower connecting rods according to claim 6, characterized in that, Also includes: The second elastic element (6) provides the upper link (31) and / or the lower link (32) with an elastic driving force to eject the lock shell (1).

8. The self-springing structure with separable main bolt and upper and lower connecting rods according to claim 7, characterized in that, The lock housing (1) is provided with a first fixing part (13), which is located on one side of the upper connecting rod (31) and / or the lower connecting rod (32). The upper connecting rod (31) and / or the lower connecting rod (32) are provided with a second fixing part (7). The second elastic element (6) is a spring, and the two ends of the spring are respectively connected to the first fixing part (13) and the second fixing part (7).

9. The self-springing structure with separable main bolt and upper and lower connecting rods according to claim 6, characterized in that, The upper connecting rod (31) and the lower connecting rod (32) are provided with guide grooves (34). The lock housing (1) is fixedly provided with a pair of opposite sliding pins (12). The pair of sliding pins (12) are located on both sides of the linkage gear (33). The sliding pins (12) are slidably connected to the guide grooves (34).

10. The self-springing structure with separable main bolt and upper and lower connecting rods according to claim 1, characterized in that, The anti-locking assembly (4) further includes an anti-locking plate bushing (43), the anti-locking tooth (41) has a bushing hole, one end of the anti-locking plate bushing (43) is fixed in the bushing hole, the first elastic element (42) is a torsion spring, the torsion spring is sleeved on the anti-locking plate bushing (43), and the two lever arms of the torsion spring abut against the anti-locking tooth (41) and the lock shell (1) respectively.

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