Lock cylinder with anti-impact function

Abstract

The utility model relates to the technical field of lock cylinder, especially a lock cylinder with anti-impact function, including lock cylinder, set up on the lock hole of lock cylinder outer end surface, lock shell and the pick, the outer end surface of lock cylinder is equipped with the board groove on both sides of lock hole, the inside of board groove is rotatably installed with the pivot through reset component, the outer wall of pivot is fixedly installed with the support plate that is compatible with board groove, a pair of support plates are rotatably installed on both sides of lock hole through reset component on the end surface of lock cylinder, when the key is inserted into the lock hole, two support plates are rotated to both sides of the key through the drive assembly, the key is clamped and supported, the key is prevented from bending to both sides, effectively prevent the part outside the lock hole from bending and breaking to both sides when the key is impacted.

Description

Technical Field

[0001] This utility model relates to the field of lock cylinder technology, and in particular to a lock cylinder with anti-impact function. Background Technology

[0002] The lock cylinder is the core component controlling the opening of a door lock. Its main function is to transmit torque from the head, thereby driving other parts of the lock to achieve locking and unlocking. Currently, lock cylinders are typically opened by inserting a key into the keyhole, causing the pins to reach the designated positions, and then turning the key to turn the lock cylinder.

[0003] A lock cylinder with the existing publication number CN213205255U is used to facilitate the removal of a broken key. It includes a lock shell, a lever located in the middle of the lock shell, and lock cylinders located on both sides of the lever inside the lock shell. The lock cylinders are provided with through grooves, the length direction of which is parallel to the axial direction of the lock cylinders. Gears are provided in the through grooves, the radial direction of which is perpendicular to the largest face of the key. The key is provided with several tooth grooves that mate with the gears.

[0004] The aforementioned prior art facilitates the removal of keys broken inside the lock cylinder. In practical use, people often forget to remove the key after inserting it to open the lock. The key inserted into the keyhole is prone to breakage upon impact, leaving the front half of the key inside the keyhole. The aforementioned lock cylinder cannot prevent impacts from breaking the key inserted into the keyhole. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the inability to prevent impacts from breaking the key inserted into the keyhole, and to propose a lock cylinder with an anti-impact function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a lock cylinder with anti-impact function, including a lock cylinder, a lock hole set on the outer end face of the lock cylinder, a lock shell and a lever. The outer end face of the lock cylinder has a plate groove located on both sides of the lock hole. A rotating shaft is rotatably installed inside the plate groove through a reset assembly. A support plate adapted to the plate groove is fixedly installed on the outer wall of the rotating shaft.

[0008] A drive assembly is provided at one end of the rotating shaft, and the drive assembly is used to drive the rotating shaft to rotate.

[0009] Furthermore, the reset assembly includes several mounting slots formed at the bottom of the support plate, and a mounting seat and a torsion spring are sleeved on the outer wall of the rotating shaft within the mounting slots. The lower end of the mounting seat is connected to the inner wall of the slot through the mounting assembly, and the two ends of the torsion spring are respectively fixedly connected to the support plate and the mounting seat.

[0010] Furthermore, the mounting assembly includes a T-shaped block fixedly disposed on the side of the mounting base, and a T-shaped groove is formed on one inner wall of the plate groove, into which the T-shaped block is inserted;

[0011] The bottom of the plate groove is equipped with a stop block via a pop-out component, and the end face of the mounting base away from the T-shaped block is slidably connected to the stop block.

[0012] Furthermore, the pop-out component includes a slot at the bottom of the plate groove, a stop block is inserted into the slot, a spring piece is fixedly connected to the bottom of the stop block, the lower end of the spring piece is fixedly connected to the bottom of the slot, and a slot is provided on the top of the stop block near the mounting base, and the mounting base is engaged inside the slot.

[0013] Furthermore, a buffer sheet is adhered to the side of the support plate near the groove.

[0014] Furthermore, the drive assembly includes a fan-shaped groove formed on the inner wall of the lock hole, a ring is rotatably mounted inside the fan-shaped groove, one end of the rotating shaft is inserted into the fan-shaped groove and fixedly connected to the ring, and a pressure plate is integrally formed on the outer wall of the ring.

[0015] The present invention proposes a lock cylinder with anti-impact function, which has the following advantages: by rotating a pair of support plates on both sides of the lock hole through a reset assembly on the end face of the lock cylinder, when the key is inserted into the lock hole, the two support plates are rotated to both sides of the key through the drive assembly to clamp and support the key, preventing the key from bending to both sides, and effectively preventing the part of the key outside the lock hole from bending and breaking to both sides when it is impacted. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an enlarged view of area A of this utility model;

[0018] Figure 3 This is a schematic diagram of the top structure of this utility model;

[0019] Figure 4 This is an enlarged view of region B of this utility model;

[0020] Figure 5 This is an exploded view of the present invention.

[0021] In the diagram: 1. Lock cylinder; 11. Lock hole; 12. Lock case; 13. Lever; 2. Plate groove; 3. Reset assembly; 31. Mounting groove; 32. Mounting base; 33. Torsion spring; 4. Shaft; 5. Support plate; 6. Drive assembly; 61. Sector groove; 62. Ring; 63. Pressure plate; 8. Mounting assembly; 81. T-block; 82. T-slot; 83. Stop block; 9. Pop-out assembly; 91. Slot; 92. Spring; 93. Slot; 10. Buffer plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5 As an embodiment of this utility model, a lock cylinder with anti-impact function is disclosed, including a lock cylinder 1, a lock hole 11 disposed on the outer end face of the lock cylinder 1, a lock shell 12 and a lever 13. The outer end face of the lock cylinder 1 is provided with plate grooves 2 located on both sides of the lock hole 11. A rotating shaft 4 is rotatably installed inside the plate groove 2 through a reset assembly 3. A support plate 5 adapted to the plate groove 2 is fixedly installed on the outer wall of the rotating shaft 4.

[0024] One end of the rotating shaft 4 is provided with a driving component 6, which is used to drive the rotating shaft 4 to rotate.

[0025] After the key is inserted into the lock hole 11, the drive assembly 6 drives the two rotating shafts 4 and the support plate 5 on them to rotate, so that the support plate 5 in the two plate grooves 2 rotates 90 degrees and then rotates to both sides of the key to clamp and support the key, preventing the key from bending to both sides and effectively preventing the part of the key outside the lock hole from bending and breaking to both sides when it is impacted.

[0026] In some embodiments, the reset assembly 3 includes a plurality of mounting grooves 31 formed at the bottom of the support plate 5, and a mounting seat 32 and a torsion spring 33 are sleeved on the outer wall of the rotating shaft 4 within the mounting grooves 31. The lower end of the mounting seat 32 is connected to the inner wall of the plate groove 2 through the mounting assembly 8, and the two ends of the torsion spring 33 are respectively fixedly connected to the support plate 5 and the mounting seat 32.

[0027] When the support plate 5 rotates, the shaft 4 rotates within the mounting base 32, and after rotating ninety degrees, the rear side of the support plate 5 abuts against the rear inner wall of the plate groove 2 and cannot continue to rotate, thus maintaining perpendicularity to the outer end face of the lock cylinder 1.

[0028] After the key is removed, the torsion spring 33 drives the rotating shaft 4 to rotate in the opposite direction, thereby causing the support plate 5 to rotate and reset, returning to the plate groove 2.

[0029] Furthermore, the mounting component 8 includes a T-shaped block 81 fixedly disposed on the side of the mounting base 32, and a T-shaped groove 82 is provided on one inner wall of the plate groove 2, and the T-shaped block 81 is inserted into the inside of the T-shaped groove 82;

[0030] Wherein, the bottom of the plate groove 2 is equipped with a stop block 83 through the pop-out component 9, and the end face of the mounting base 32 away from the T-shaped block 81 is slidably connected to the stop block 83;

[0031] During installation, the mounting base 32 is pressed down to stop 83 and T-shaped block 81 is aligned with T-shaped groove 82. Then, the mounting base 32 is pushed back to insert T-shaped block 81 into T-shaped groove 82, thereby preventing the mounting base 32 from detaching from the bottom of plate groove 2. After T-shaped block 81 is inserted into T-shaped groove 82, the mounting base 32 moves back synchronously to release the pressure on stop 83. Stop 83 pops out under the action of pop-out component 9 and blocks the front end of mounting base 32, thereby preventing mounting base 32 from driving T-shaped block 81 forward and detaching from T-shaped groove 82.

[0032] During disassembly, pressing the stop 83 will move the mounting base 32 forward, causing the T-block 81 to disengage from the T-groove 82. Remove the mounting base 32 and replace the rotating shaft 4, torsion spring 33, drive assembly 6, and support plate.

[0033] Furthermore, the pop-out component 9 includes a slot 91 formed at the bottom of the plate groove 2, a stop block 83 is inserted into the slot 91, a spring piece 92 is fixedly connected to the bottom of the stop block 83, the lower end of the spring piece 92 is fixedly connected to the bottom of the slot 91, and a slot 93 is formed at the top of the stop block 83 near the mounting base 32, and the mounting base 32 is engaged inside the slot 93. Preferably, the lower end of the spring piece 92 is glued to the slot 93 to form the bottom of the slot, and the upper end of the spring piece 92 is fastened to the stop block 83 with screws.

[0034] The stop block 83 is accommodated and guided by the slot 91 so that it can only move up and down. The spring 92 applies an upward pushing force to the stop block 83 so that it will automatically pop out after the pressure of the mounting base 32 is removed.

[0035] Without affecting the blocking effect of the stop 83 on the mounting base 32 in the front-back direction, the mounting base 32 inserted into the slot 93 blocks the stop 83 in the vertical direction, thus preventing the stop 83 from dislodging from the slot 91.

[0036] It should be noted that a buffer sheet 10 is bonded to the side of the support plate 5 near the plate groove 2. Preferably, the buffer sheet 10 is a rubber sheet. The buffer sheet 10 buffers the support plate 5 that rotates back into the plate groove 2 under the action of the torsion spring 33, thereby reducing the noise generated by the impact.

[0037] Specifically, the drive assembly 6 includes a fan-shaped groove 61 formed on the inner wall of the lock hole 11, a ring 62 is rotatably installed inside the fan-shaped groove 61, one end of the rotating shaft 4 is inserted into the fan-shaped groove 61 and fixedly connected to the ring 62, and a pressure plate 63 is integrally formed on the outer wall of the ring 62.

[0038] When the key is inserted into the lock hole 11, the lower end of the key pushes down the pressure plate 63, causing its rear end, which is located inside the lock hole 11, to rotate downwards. This causes the ring 62 to rotate around the shaft 4, and also causes the shaft 4 and the support plate 5 to rotate 90 degrees. After rotating 90 degrees, the front end of the pressure plate 63, which was previously located inside the lock hole 11, returns completely to the fan-shaped groove 61, allowing the key to continue to be inserted into the lock hole 11. The key blocks the pressure plate 63, preventing the rear end of the pressure plate 63 from rotating upwards and preventing the ring 62 and the shaft 4 from reversing. This causes the support plate 5 to rotate forward and tilt, keeping the support plate 5 vertically supporting the key.

[0039] Working method: When the key is inserted into the lock hole 11, the lower end of the key pushes down the pressure plate 63, causing it to rotate 90 degrees through the ring 62, which drives the rotating shaft 4 and the support plate 5. After rotating 90 degrees, the support plate 5 remains vertical and provides two vertical support plates 5 to clamp and support the key.

[0040] After the key is removed, the torsion spring 33 drives the support plate 5 to rotate backward and return to the plate groove 2.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lock cylinder with anti-impact function, comprising a lock cylinder (1), a lock hole (11) disposed on the outer end face of the lock cylinder (1), a lock shell (12), and a lever (13), characterized in that: The outer end face of the lock cylinder (1) is provided with plate grooves (2) located on both sides of the lock hole (11). The inside of the plate groove (2) is rotatably mounted with a rotating shaft (4) through a reset assembly (3). A support plate (5) adapted to the plate groove (2) is fixedly mounted on the outer wall of the rotating shaft (4). One end of the rotating shaft (4) is provided with a driving component (6), which is used to drive the rotating shaft (4) to rotate.

2. A lock cylinder with anti-impact function according to claim 1, characterized in that: The reset assembly (3) includes several mounting slots (31) formed at the bottom of the support plate (5). The outer wall of the rotating shaft (4) is fitted with a mounting seat (32) and a torsion spring (33) located in the mounting slots (31). The lower end of the mounting seat (32) is connected to the inner wall of the plate groove (2) through the mounting assembly (8). The two ends of the torsion spring (33) are fixedly connected to the support plate (5) and the mounting seat (32) respectively.

3. A lock cylinder with anti-impact function according to claim 2, characterized in that: The mounting assembly (8) includes a T-shaped block (81) fixedly disposed on the side of the mounting base (32), and a T-shaped groove (82) is provided on one inner wall of the plate groove (2), and the T-shaped block (81) is inserted into the T-shaped groove (82); The bottom of the plate groove (2) is equipped with a stop (83) via a pop-out component (9), and the end face of the mounting base (32) away from the T-shaped block (81) is slidably connected to the stop (83).

4. A lock cylinder with anti-impact function according to claim 3, characterized in that: The pop-out component (9) includes a slot (91) opened at the bottom of the plate groove (2), a stop block (83) is inserted into the inside of the slot (91), a spring piece (92) is fixedly connected to the bottom of the stop block (83), the lower end of the spring piece (92) is fixedly connected to the bottom of the slot (91), and a slot (93) is opened at the top of the stop block (83) on the side close to the mounting base (32), and the mounting base (32) is engaged inside the slot (93).

5. A lock cylinder with anti-impact function according to claim 1, characterized in that: A buffer sheet (10) is glued to the side of the support plate (5) near the groove (2).

6. A lock cylinder with anti-impact function according to claim 1, characterized in that: The drive assembly (6) includes a fan-shaped groove (61) opened on the inner wall of the lock hole (11), and a ring (62) is rotatably installed inside the fan-shaped groove (61). One end of the rotating shaft (4) is inserted into the fan-shaped groove (61) and fixedly connected to the ring (62). The outer wall of the ring (62) is integrally formed with a pressure plate (63).

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