High-safety lock
By introducing structures such as limit grooves, embedded blocks and rubber bags into the lock, the problem of impact damage caused by the clearance between the lock seat and the lock cylinder is solved, and the safety and durability of the lock are improved.
Patent Information
- Application Number
- CN202511070194.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2025-10-28
AI Technical Summary
The existing door lock has a gap between the lock seat and the lock cylinder, which makes it easy to be damaged when the door is kicked open, thus affecting security.
A high-security lock was designed, which ensures a tight fit between the lock pin and the lock seat by setting a limiting groove, an embedded block, a rubber bladder and a sliding rod between the lock pin and the lock seat to prevent impact and fill the gaps to protect the lock in the event of violent impact.
It effectively prevents damage to the lock base and lock pin due to impact, improves the safety and durability of the lock, and avoids the safety hazard of disengagement caused by installation errors.
Smart Images
Figure CN120844853A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lock technology, and more specifically, to a high-security lock. Background Technology
[0002] Door locks are a type of lock. With the continuous development of society and economy and the increasing level of science and technology, people's security awareness is also constantly improving. As a mechanism that locks the door to the door frame or wall, door locks can effectively prevent unauthorized persons from opening the door and play an important role in people's daily lives. Existing door locks usually consist of a lock body and a lock seat. The lock body is installed on the door, and the lock seat is installed on the door frame. The lock body is equipped with a retractable lock pin. When locked, the lock pin extends out of the lock body and inserts into the lock seat. However, the existing door locks usually have a gap fit between the lock seat and the lock pin. This gap is to prevent the lock pin from being blocked when locking due to manufacturing and installation precision issues. However, this also means that after the door lock is locked, the lock pin cannot fit tightly with the lock seat. As a result, when the door is violently kicked, the lock seat and the lock pin will impact each other, which can easily damage the lock seat and the lock pin, and even cause the lock to fail.
[0003] Therefore, a high-security lock is needed to solve the above problems. Summary of the Invention
[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a high-security lock, comprising: a lock body, installed on a door, having a first keyhole and a second keyhole; a lock pin frame, installed on a door frame; a first lock pin, a second lock pin, and a slanted latch, all slidably and telescopically disposed on the lock body, the first lock pin being controlled to extend and retract via the first keyhole, and the second lock pin and the slanted latch being controlled to extend and retract via the second keyhole; a first lock hook and a second lock hook, movably disposed on the lock body, suitable for connecting to a deadbolt lock; a lock pin frame fixedly disposed on a lock base, the second lock pin extending out and embedded in the lock pin frame, and a limiter provided on the inner wall of the lock pin frame. The lock has a groove, and the second lock pin has an embedded block that is embedded in the limiting groove. The second lock pin also has a rubber bladder for filling the gap between the second lock pin and the lock pin frame. The first lock pin is fixedly connected to a first sliding frame in the lock body, and the second lock pin is fixedly connected to a second sliding frame in the lock body. A lock cylinder toothed ring is rotatably connected in the lock body. A transmission wheel that meshes with the lock cylinder toothed ring and a rotating disk that meshes with the transmission wheel are also rotatably connected in the lock body. Two drive pins are fixedly connected to the rotating disk. The second sliding frame has a mating groove for the drive pins to be embedded in. The second sliding frame moves up and down under the action of the drive pins and the mating groove when the rotating disk rotates.
[0006] Furthermore, a sliding rod is slidably installed inside the second locking pin, and two mounting platforms are fixedly connected to the sliding rod. Two first hinge rods are hinged on the mounting platforms. Two sets of embedded blocks are installed on the second locking pin, and the two sets of embedded blocks are respectively hinged to one end of the two mounting platforms. When the sliding rod slides, it drives the embedded blocks to move through the first hinge rods.
[0007] Furthermore, two sliding plates are slidably connected inside the second locking pin. Rubber bladders are fixedly installed on the sliding plates. The two sliding plates are respectively hinged to the two first hinge rods. The sliding plates are moved by sliding the sliding rods. A limiting plate with one end protruding from the side wall of the second locking pin is slidably connected inside the second locking pin. A limiting ring groove is opened on the sliding rod, and a through hole is opened on the limiting plate. The sliding rod passes through the through hole, and the limiting plate is located at the position of the limiting ring groove. When the sliding rod and the through hole on the limiting plate are not coaxial, the limiting plate is embedded in the limiting ring groove to limit the sliding rod.
[0008] Furthermore, the lower end of the sliding rod passes through the second locking pin and is fixedly connected to a lower side plate. A fixing plate is fixedly installed inside the lock body, and a connecting spring is installed between the fixing plate and the lower side plate. A connecting rod is fixedly connected to the lower side plate, and a reset plate is fixedly connected to one end of the connecting rod. The reset plate is located on one side of the mating groove. A limiting platform is fixedly connected to the second sliding frame. A mounting shell is fixedly installed inside the lock body, and a sliding groove is opened on the mounting shell. The limiting platform moves along the extension direction of the sliding groove.
[0009] Furthermore, a sliding block is slidably connected inside the slide groove, and a limit stud is threadedly installed on the sliding block. One end of the limit stud is fixedly connected to a limit head, and a groove for the limit head to be inserted is opened on the limit platform, so that the sliding block and the limit platform move synchronously. An abutment plate is also fixedly installed on the sliding block. The abutment plate abuts against the mounting shell to limit the sliding block. When the abutment plate abuts against the mounting shell, the limit head disengages from the limit platform, and a through hole is opened on the lock body.
[0010] Furthermore, both the first and second locking hooks are provided with guide grooves, and a portion of the limiting stud is located in the guide groove. When the limiting stud moves along the slide groove, it drives the first and second locking hooks to move through the guide groove. A safety hook is movably installed inside the lock body. The safety hook has a mounting post that is rotatably installed inside the lock body. A follower post is fixedly installed on the first slide frame. The safety hook is provided with a follower groove for the follower post to be inserted. One end of the safety hook is provided with a hook head that limits the first and second locking hooks. The first and second locking hooks are provided with grooves for the hook head to be inserted.
[0011] Furthermore, a fixed protrusion is fixedly provided on the safety hook, and a limit strip is hinged to the fixed protrusion. The limit strip and the fixed protrusion are elastically hinged together. A support strip is slidably provided at the lower end of the fixed protrusion. When the support strip slides to the lower end of the limit strip, it supports the limit strip. An installation cylinder is fixedly provided on the safety hook. The support strip has a sliding part that is slidably provided in the installation cylinder. An adjusting screw is rotatably provided in the installation cylinder. The adjusting screw passes through the sliding part and is threadedly engaged with the sliding part. An adjustment hole is provided on the lock body.
[0012] Furthermore, a threaded hole is provided on the second locking pin, which extends to one side of the limiting plate, thereby driving the installation screw to be installed inside the threaded hole. An abutment spring is provided between the installation screw and the limiting plate.
[0013] Furthermore, the rubber bladder is filled with a non-Newtonian fluid.
[0014] The beneficial effects of this application are as follows:
[0015] 1. With the sliding rod and the embedded blocks, when the sliding rod moves downward, the first hinge rod will drive the two embedded blocks to extend from the side of the second lock pin and embed into the limiting groove, so as to prevent the second lock pin from falling out of the lock pin frame due to the door lock being pried, thus preventing safety hazards.
[0016] 2. Through the first hinge rod and the rubber bladder, when the door is impacted, the rubber bladder is pushed out of the second lock cylinder, so that the rubber bladder fills the gap between the second lock cylinder and the lock cylinder frame. When the door is impacted, it prevents the second lock cylinder and the lock cylinder frame from colliding and causing damage to the lock seat and lock cylinder.
[0017] 3. By using the fixed protrusion and limiting strip, when the top and bottom locks are no longer in use, the tool rotates the adjusting screw through the adjusting hole, causing the supporting strip to move to the underside of the limiting strip, thus supporting the limiting strip. At this time, the second locking pin can move from the unlocked state to the locked state, but cannot move from the locked state to the unlocked state. This locks the second locking pin, preventing the safety lock from failing. Attached Figure Description
[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0019] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0020] In the attached diagram:
[0021] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;
[0022] Figure 2 yes Figure 1 A cross-sectional view of the lock column frame in the embodiment;
[0023] Figure 3 yes Figure 1 The installation diagram of the first locking hook and the second locking hook in the embodiment is shown below;
[0024] Figure 4 yes Figure 1 The installation diagram of the sliding block in the embodiment is shown below;
[0025] Figure 5 yes Figure 1 A partial enlarged view of the limiting head abutting the plate in the embodiment;
[0026] Figure 6 yes Figure 1 A cross-sectional view of the second locking pin in the embodiment;
[0027] Figure 7 yes Figure 1 A schematic diagram of the limiting piece in the embodiment;
[0028] Figure 8 yes Figure 1 A schematic diagram of the installation structure of the rotating disk in the embodiment;
[0029] Figure 9 yes Figure 1 A partial enlarged view of the sliding part in the embodiment;
[0030] Figure 10 yes Figure 1 A plan view of the second sliding frame in the embodiment;
[0031] Figure 11 yes Figure 1 The above embodiment is a schematic diagram of the movement of the drive column and the reset plate during the unlocking process of the second lock column.
[0032] Figure label:
[0033] 10. Lock body; 11. First lock hole; 12. First lock pin; 13. Second lock hole; 14. Second lock pin; 15. First lock hook; 16. Second lock hook; 17. Lock seat; 18. Lock pin frame; 19. First sliding frame; 20. Slanted latch; 21. Second sliding frame; 22. Lock cylinder tooth ring; 23. Drive wheel; 24. Rotating disc; 25. Drive pin; 26. Mating groove; 27. Limiting platform; 28. Slide groove; 29. Sliding block; 30. Limiting stud; 31. Through hole; 32. Limiting head; 33. Abutment plate; 34. Guide groove; 35. Safety hook; 36. Mounting pin; 37. Follower column; 38. Follower groove; 39. Hook; 40. Fixing protrusion; 41. Limiting strip; 42. Mounting cylinder; 43. Support strip; 44. Adjusting screw; 45. Sliding part; 46. Limiting groove; 47. Sliding rod; 48. Embedded block; 49. First hinge rod; 50. Mounting platform; 51. Connecting spring; 52. Reset plate; 53. Sliding plate; 54. Rubber bladder; 55. Limiting piece; 56. Mounting screw; 57. Abutment spring; 58. Limiting ring groove; 59. Lower side plate; 60. Fixing plate; 61. Connecting rod; 62. Mounting shell; 63. Adjusting hole. Detailed Implementation
[0034] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0035] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0036] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0037] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0038] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0039] Reference Figure 1-11 A high-security lock includes: a lock body 10, a first keyhole 11, a second keyhole 13, a lock pin frame 18, a first lock pin 12, a second lock pin 14, a slanted latch 20, a first lock hook 15, a second lock hook 16, and a lock base 17. Specifically, the lock body 10 is installed on a door, and the lock base 17 is installed on a door frame. The lock body 10 has a first keyhole 11 and a second keyhole 13. The first lock pin 12, the second lock pin 14, and the slanted latch 20 are all telescopically mounted on the lock body 10. A key inserted into the first keyhole 11 and turned controls the first lock pin 12 to lock or unlock. Another key inserted into the second keyhole 13 and turned controls the second lock pin 14 to lock or unlock, and also controls the telescopic movement of the slanted latch 20. A first sliding frame 19 is slidably mounted within the lock body 10 and fixedly engaged with the first lock pin 12. The lock cylinder within the first keyhole 11 drives the first sliding frame 19 to move up and down, thereby moving the first lock pin 12. A second sliding frame 21 is also slidably arranged inside the lock body 10. The lock cylinder in the second lock hole 13 can drive the second sliding frame 21 to move up and down, which in turn drives the second lock pin 14 to move up and down to lock and unlock. There is a transmission component between the second sliding frame 21 and the oblique lock tongue 20, which can be referred to as an existing lock structure.
[0040] The lock base 17 is provided with a lock pin frame 18 for the second lock pin 14 to be inserted for locking. A limiting groove 46 is formed on the inner wall of the lock pin frame 18. An insert block 48 is provided on the second lock pin 14, which is embedded in the limiting groove 46. A rubber bladder 54 is also provided on the second lock pin 14 to fill the gap between the second lock pin 14 and the lock pin frame 18. This is to prevent the second lock pin 14 from colliding with the lock pin frame 18 when the door is impacted, thus avoiding damage to the lock base and lock pin, and ultimately, lock failure. Specifically, a sliding rod 47 is slidably disposed within the second lock cylinder 14. Two mounting platforms 50 are fixedly disposed on the sliding rod 47, and two first hinge rods 49 are hinged to the mounting platforms 50. Two embedded blocks 48 are respectively hinged to one end of the two first hinge rods 49 on the upper mounting platform 50. This allows the second lock cylinder 14 to be in the locked state, and when the sliding rod 47 moves downward, the first hinge rods 49 will cause the two embedded blocks 48 to extend from the side of the second lock cylinder 14 and embed into the limiting groove 46, preventing the second lock cylinder 14 from detaching from the lock cylinder frame 18 due to prying of the lock, thus preventing potential safety hazards. Two sliding plates 53 are also slidably disposed on the second lock cylinder 14, and rubber bladders 54 are fixedly disposed on the sliding plates 53. The rubber bladders 54 are filled with non-Newtonian fluid. Two sliding plates 53 are respectively hinged to one end of two first hinge rods 49 on the mounting platform 50 on the lower side. When the sliding rod 47 moves downward, the first hinge rods 49 will drive the two sliding plates 53 to move, thereby pushing the rubber bladder 54 out of the second lock pin 14, so that the rubber bladder 54 fills the gap between the second lock pin 14 and the lock pin frame 18. When the door is impacted, it will prevent the second lock pin 14 and the lock pin frame 18 from colliding and causing damage to the lock seat and lock pin. A limiting piece 55 with one end extending out of the side of the second lock pin 14 is also slidably provided on the lock body 10. The limiting piece 55 is provided with a through hole. The sliding rod 47 passes through the through hole of the limiting piece 55. A limiting ring groove 58 is provided on the sliding rod 47. The limiting piece 55 is located at the position of the limiting ring groove 58. When the sliding rod 47 and the through hole on the limiting piece 55 are not coaxial, the limiting piece 55 is embedded in the limiting ring groove 58 to limit the sliding rod 47. When the door receives an impact, the limiting piece 55 will contact the inner wall of the lock pin frame 18, thereby making the sliding rod 47 coaxial with the through hole on the limiting piece 55. It should be noted that the limiting piece 55 protrudes slightly from the second lock pin 14, so it will not hinder the second lock pin 14 from being inserted into the lock pin frame 18. At the same time, the second lock pin 14 and the lock pin frame 18 are clearance-fitted, reducing the risk of misalignment due to installation errors.
[0041] In one embodiment, the lower end of the sliding rod 47 extends out of the second locking pin 14, and the lower end of the second locking pin 14 is fixedly connected to a lower side plate 59. A fixing plate 60 is fixed inside the lock body 10, and a connecting spring 51 is provided between the fixing plate 60 and the lower side plate 59. When the second locking pin 14 is in the locked state, the connecting spring 51 is in the stretched state. A connecting rod 61 is fixedly connected to the lower side plate 59, and the lower end of the connecting rod 61 passes through the fixing plate 60 and is fixedly connected to a reset plate 52.
[0042] A lock cylinder toothed ring 22 is rotatably mounted inside the lock body 10. The lock cylinder in the second lock hole 13 drives the lock cylinder toothed ring 22 to rotate. Two transmission wheels 23 are rotatably mounted inside the lock body 10, both meshing with the lock cylinder toothed ring 22. A rotating disk 24 is rotatably mounted inside the lock body 10, meshing with the two transmission wheels 23, causing the lock cylinder toothed ring 22 to rotate and thus driving the rotating disk 24 to rotate. A mating groove 26 is formed on the second sliding frame 21. Two drive pins 25, which are embedded in the mating groove 26, are fixedly mounted on the rotating disk 24. The mating groove 26 has a toothed structure. The rotating disk 24 drives the two drive pins 25 to move within the mating groove 26, causing the second sliding frame 21 to move up and down, thereby achieving locking and unlocking.
[0043] The reset plate 52 is located on one side of the mating groove 26. When the second locking pin 14 is locked, the door is impacted. The sliding rod 47 and the through hole on the limiting plate 55 are coaxial. Under the action of the connecting spring 51, the sliding rod 47 moves downward. At this time, the reset plate 52 will abut against a driving pin 25. When it is necessary to unlock the second locking pin 14, the rotating disk 24 is rotated, causing the driving pin 25 to push the reset plate 52 upward. Then, the limiting plate 55 is located at the position of the limiting ring groove 58 and continues to be embedded in the limiting ring groove 58.
[0044] A threaded hole is provided on the second locking pin 14, which extends to one side of the limiting plate 55, thereby driving the installation screw 56 to be installed in the threaded hole. An abutment spring 57 is provided between the installation screw 56 and the limiting plate 55, with both ends of the abutment spring 57 abutting against the installation screw 56 and the limiting plate 55 respectively.
[0045] In one embodiment, a first locking hook 15 and a second locking hook 16 are slidably disposed within the lock body 10, with one end of the first locking hook 15 and the second locking hook 16 connected to a top and bottom lock. Both the first locking hook 15 and the second locking hook 16 have guide grooves 34. A limiting platform 27 is fixed on the second sliding frame 21, and a limiting stud 30 embedded in the guide groove 34 is installed on the limiting platform 27. The limiting stud 30 allows the first locking hook 15 and the second locking hook 16 to move when the second sliding frame 21 moves up and down. Specifically, a mounting shell 62 is fixedly installed inside the lock body 10. A sliding groove 28 is provided on the mounting shell 62, and a sliding block 29 is slidably disposed within the groove 28. A limiting stud 30 is threaded onto the sliding block 29. One end of the limiting stud 30 is fixedly connected to an abutment plate 33 and a limiting head 32. A hole is provided on the limiting platform 27 for the limiting head 32 to be inserted. When the limiting head 32 is inserted into the limiting platform 27, the limiting stud 30 moves with the limiting platform 27. When the limiting head 32 is not inserted into the limiting platform 27, the abutment plate 33 abuts against one side of the mounting shell 62, limiting the limiting stud 30. A through hole 31 is provided on the lock body 10 for inserting a tool to tighten the limiting stud 30. This achieves the following effect: when a top and bottom lock is needed, the limiting stud 30 can be turned until the limiting head 32 is inserted into the limiting platform 27. Then, when the second sliding frame 21 moves to lock, the limiting stud 30 and the guide groove 34 will cause the first locking hook 15 and the second locking hook 16 to move, thus locking the top and bottom lock. When the top and bottom lock is not needed, by turning the limiting stud 30 until the limiting head 32 disengages from the limiting platform 27 and the abutment plate 33 abuts against the mounting shell 62, the limiting stud 30 no longer moves with the second sliding frame 21 and will not cause the first locking hook 15 and the second locking hook 16 to move. It should be noted that when the second sliding frame 21 is in the unlocked position, the limiting platform 27 is directly opposite the through hole 31.
[0046] In one embodiment, a safety hook 35 is movably installed inside the lock body 10. The safety hook 35 has a mounting post 36 rotatably disposed within the lock body 10. A follower post 37 is fixedly disposed on the first sliding frame 19. The safety hook 35 has a follower groove 38 for the follower post 37 to be inserted into. One end of the safety hook 35 is provided with a hook head 39 for limiting the first locking hook 15 and the second locking hook 16. The first locking hook 15 and the second locking hook 16 are provided with grooves for the hook head 39 to be inserted into. When the first locking pin 12 moves upward while locked, it will drive the safety hook 35 to move, causing the hook head 39 to be inserted into the first locking hook 15 and the second locking hook 16 to limit the first locking hook 15 and the second locking hook 16. This prevents the second locking pin 14 and the second sliding frame 21 from moving, thus locking the second locking pin 14.
[0047] In one embodiment, to avoid the safety hook 35 being unable to limit the second sliding frame 21 and lock the second locking pin 14 due to the lack of a top and bottom lock, the following solution is adopted: a fixed protrusion 40 is fixed on the safety hook 35, and a limiting strip 41 is hinged to the fixed protrusion 40. The limiting strip 41 is elastically hinged to the fixed protrusion 40. Specifically, a torsion spring is provided at the hinge axis, and the two ends of the torsion spring are fixed to the limiting strip 41 and the fixed protrusion 40 respectively, so that the limiting strip 41 and the fixed protrusion 40 remain parallel when no external force is applied. When the limiting strip 41 is subjected to external force, the limiting strip 41 can deflect upward or downward around the hinge axis. When the second locking pin 14 moves from the locked state to the unlocked state, the second sliding frame 21 moves downward, and the lower end of the second sliding frame 21 abuts against the limiting strip 41, causing the limiting strip 41 to deflect downward. The second sliding frame 21 continues to move until the limiting strip 41 is located inside the second sliding frame 21. When the second locking pin 14 moves from the unlocked state to the locked state, the limiting strip 41 will also deflect and will not obstruct the movement of the second sliding frame 21. It should be noted that when the first locking pin 12 is in the locked state, the limiting strip 41 is on the movement trajectory of the second sliding frame 21; when the first locking pin 12 is in the unlocked state, the limiting strip 41 is not within the movement trajectory of the second sliding frame 21 and will not contact the second sliding frame 21.
[0048] A support bar 43 is slidably mounted on the lower end of the fixed protrusion 40. When the support bar 43 partially slides to the lower end of the limiting bar 41, it supports the limiting bar 41, preventing it from deflecting downwards. An mounting cylinder 42 is fixedly mounted on the safety hook 35. The support bar 43 has a sliding part 45 slidably mounted within the mounting cylinder 42. An adjusting screw 44 is rotatably mounted within the mounting cylinder 42, passing through the sliding part 45 and threadedly engaging with it. An adjusting hole 63 is provided on the lock body 10. When the first locking pin 12 is in the unlocked state, the mounting cylinder 42 faces the adjusting hole 63. A tool rotates the adjusting screw 44 through the adjusting hole 63, causing the support bar 43 to move to the lower side of the limiting bar 41, supporting the limiting bar 41. At this time, the second locking pin 14 can move from the unlocked state to the locked state, but cannot move from the locked state to the unlocked state. This locks the second locking pin 14.
[0049] During operation or installation: In the initial state, the second locking pin 14 is locked and the first locking pin 12 is unlocked.
[0050] 1. When a violent door-breaking occurs and impacts the door, the limiting plate 55 will contact the inner wall of the lock pillar frame 18, causing the sliding rod 47 to be coaxial with the through hole on the limiting plate 55. Under the action of the connecting spring 51, the sliding rod 47 moves downward, and under the action of the first hinge rod 49, the embedded block 48 is embedded into the limiting groove 46. At the same time, the rubber bladder 54 is pushed out by the sliding plate 53 and filled into the gap between the lock pillar frame 18 and the second lock pillar 14. At this time, the second lock pillar 14 will not collide with the lock pillar frame 18, avoiding damage to the lock seat and lock pillar caused by the impact.
[0051] 2. When the second locking pin 14 is unlocked, the rotating disk 24 will drive the drive pin 25 to move, so that the drive pin 25 will first push the reset plate 52, and drive the sliding rod 47 to move through the connecting rod 61 and the lower side plate 59 until the limiting ring groove 58 is repositioned at the position of the limiting piece 55. Under the action of the abutment spring 57, the limiting piece 55 is embedded in the limiting ring groove 58 to limit the sliding rod 47.
[0052] 3. When the top and bottom lock needs to be installed, adjust the second locking pin 14 to the unlocked state. Insert a tool into the through hole 31 and turn the limiting screw 30 so that the limiting head 32 is inserted into the limiting platform 27. The limiting screw 30 moves with the limiting platform 27. Then lock the second locking pin 14. This will drive the second sliding frame 21 and the limiting screw 30 to move. Under the action of the guide groove 34, the first locking hook 15 and the second locking hook 16 will move, thus locking the top and bottom lock. When the top and bottom lock does not need to be installed, similarly adjust the second locking pin 14 to the unlocked state. Use a tool to turn the limiting screw 30 until the abutment plate 33 contacts the mounting shell 62. The abutment plate 33 limits the limiting screw 30. At this time, the first locking hook 15 and the second locking hook 16 will not move.
[0053] 4. When the top and bottom locks are not installed, the tool can be used to turn the adjusting screw 44 through the through hole 31, causing the support bar 43 to move to the lower side of the limit bar 41. At this time, the second locking pin 14 can move from the unlocked state to the locked state, but cannot move from the locked state to the unlocked state. The second locking pin 14 is locked, continuing to serve as a safety device.
[0054] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A high-security lock, characterized in that: include: A lock body (10) is installed on the door, and the lock body (10) has a first lock hole (11) and a second lock hole (13); Lock seat (17), installed on the door frame; The first locking pin (12), the second locking pin (14), and the oblique locking tongue (20) are all telescopically slidably mounted on the lock body (10). The first locking pin (12) is controlled to extend and retract through the first locking hole (11), and the second locking pin (14) and the oblique locking tongue (20) are controlled to extend and retract through the second locking hole (13). The first locking hook (15) and the second locking hook (16) are movably mounted on the lock body (10) and are suitable for connecting the top and bottom locks; A lock post frame (18) is fixedly provided on the lock base (17). The second lock post (14) extends out and is embedded in the lock post frame (18). A limiting groove (46) is opened on the inner wall of the lock post frame (18). An embedding block (48) is provided on the second lock post (14) and is embedded in the limiting groove (46). A rubber bladder (54) is also provided on the second lock post (14) for filling the gap between the second lock post (14) and the lock post frame (18). The first locking pin (12) is fixedly connected to the first sliding frame (19) inside the lock body (10), and the second locking pin (14) is fixedly connected to the second sliding frame (21) inside the lock body (10). The lock body (10) is rotatably connected to the lock cylinder tooth ring (22), and the lock body (10) is also rotatably connected to the transmission wheel (23) meshing with the lock cylinder tooth ring (22) and the rotating disk (24) meshing with the transmission wheel (23). Two drive pins (25) are fixedly connected to the rotating disk (24). The second sliding frame (21) is provided with a mating groove (26) for the drive pins (25) to be inserted. The second sliding frame (21) moves up and down under the action of the drive pins (25) and the mating groove (26) when the rotating disk (24) rotates.
2. The high-security lock according to claim 1, characterized in that: A sliding rod (47) is slidably disposed inside the second locking post (14). Two mounting platforms (50) are fixedly connected to the sliding rod (47). Two first hinge rods (49) are hinged on the mounting platforms (50). Two sets of embedded blocks (48) are disposed on the second locking post (14). The two sets of embedded blocks (48) are respectively hinged to one end of the two mounting platforms (50). When the sliding rod (47) slides, the embedded blocks (48) are driven to move through the first hinge rods (49).
3. A high-security lock according to claim 2, characterized in that: Two sliding plates (53) are slidably connected inside the second locking pin (14). A rubber bladder (54) is fixedly installed on the sliding plate (53). The two sliding plates (53) are respectively hinged to the two first hinge rods (49). The sliding plate (53) is moved by sliding through the sliding rod (47). A limiting piece (55) with one end protruding from the side wall of the second locking pin (14) is slidably connected inside the second locking pin (14). A limiting ring groove (58) is opened on the sliding rod (47). A through hole is opened on the limiting piece (55). The sliding rod (47) passes through the through hole. The limiting piece (55) is located at the position of the limiting ring groove (58). When the sliding rod (47) and the through hole on the limiting piece (55) are not coaxial, the limiting piece (55) is embedded in the limiting ring groove (58) to limit the sliding rod (47).
4. A high-security lock according to claim 3, characterized in that: The lower end of the sliding rod (47) passes through the second locking pin (14) and is fixedly connected to the lower side plate (59). A fixing plate (60) is fixedly installed inside the lock body (10). A connecting spring (51) is provided between the fixing plate (60) and the lower side plate (59). A connecting rod (61) is fixedly connected to the lower side plate (59). A reset plate (52) is fixedly connected to one end of the connecting rod (61). The reset plate (52) is located on one side of the mating groove (26). A limiting platform (27) is fixedly connected to the second sliding frame (21). An installation shell (62) is fixedly installed inside the lock body (10). A sliding groove (28) is opened on the installation shell (62). The limiting platform (27) moves along the extension direction of the sliding groove (28).
5. A high-security lock according to claim 4, characterized in that: A sliding block (29) is slidably connected in the groove (28). A limiting stud (30) is threaded on the sliding block (29). A limiting head (32) is fixedly connected to one end of the limiting stud (30). A groove is provided on the limiting platform (27) for the limiting head (32) to be inserted, so that the sliding block (29) and the limiting platform (27) move synchronously. An abutment plate (33) is also fixedly provided on the sliding block (29). The abutment plate (33) abuts against the mounting shell (62) to limit the sliding block (29). When the abutment plate (33) abuts against the mounting shell (62), the limiting head (32) disengages from the limiting platform (27). A through hole (31) is provided on the lock body (10).
6. A high-security lock according to claim 5, characterized in that: Both the first locking hook (15) and the second locking hook (16) are provided with guide grooves (34). One part of the limiting stud (30) is located in the guide groove (34). When the limiting stud (30) moves along the slide groove (28), it drives the first locking hook (15) and the second locking hook (16) to move through the guide groove (34). A safety hook (35) is movably installed in the lock body (10). The safety hook (35) has a rotating part on the lock body. (10) The mounting post (36) is fixedly provided on the first sliding frame (19), and the safety hook (35) is provided with a follower groove (38) for the follower post (37) to be inserted. One end of the safety hook (35) is provided with a hook head (39) for limiting the first locking hook (15) and the second locking hook (16). The first locking hook (15) and the second locking hook (16) are provided with grooves for the hook head (39) to be inserted.
7. A high-security lock according to claim 6, characterized in that: The safety hook (35) is also fixedly provided with a fixed protrusion (40), and a limit strip (41) is hinged on the fixed protrusion (40). The limit strip (41) and the fixed protrusion (40) are elastically hinged together. A support strip (43) is slidably provided at the lower end of the fixed protrusion (40). When the support strip (43) partially slides to the lower end of the limit strip (41), it supports the limit strip (41). An installation cylinder (42) is fixedly provided on the safety hook (35). The support strip (43) has a sliding part (45) slidably provided in the installation cylinder (42). An adjusting screw (44) is rotatably provided in the installation cylinder (42). The adjusting screw (44) passes through the sliding part (45) and is threadedly engaged with the sliding part (45). An adjusting hole (63) is provided on the lock body (10).
8. A high-security lock according to claim 7, characterized in that: The second locking pin (14) has a threaded hole that extends to one side of the limiting plate (55), which drives the installation screw (56) to be installed in the threaded hole. An abutment spring (57) is provided between the installation screw (56) and the limiting plate (55).
9. A high-security lock according to claim 8, characterized in that: The rubber bladder (54) is filled with a non-Newtonian fluid.