A quick opening security lock

Abstract

The application provides a quick-opening anti-theft lock, and belongs to the technical field of locks. The application solves the problem that the existing key cannot open the latch tongue. The application comprises a lock body, a lock tongue, a lock tongue plate, a latch tongue, a latch tongue plate and a rotating assembly. The rotating assembly comprises a transmission gear, a driving gear, a transmission member, a fork and a push piece. The transmission gear, the driving gear and the transmission member are concentrically arranged. The driving gear is engaged with the gear of the lock cylinder and can rotate relative to the transmission gear to push the transmission gear to rotate synchronously by the upper limiting part. The outer gear of the fork is engaged with the transmission gear. The fork and the push piece are concentrically arranged. When the fork is located at the working position or the non-working position, the square hole rotating member can drive the push piece and the fork to synchronously transmit or drive the push piece to rotate alone. The driving gear can drive the latch tongue plate to move to make the latch tongue retract. When the latch tongue plate is ejected, the latch tongue plate can drive the push piece to reset. The application has the advantages that the key or the handle can be used to open the lock tongue and the latch tongue, and the lock can be quickly and conveniently opened.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of lock, and relates to a theft-proof lock, in particular to a quick-opening theft-proof lock. BACKGROUND

[0002] There are generally two kinds of opening modes for the conventional theft-proof lock, one is to open the lock tongue with a key, and to open the inner and outer handle oblique tongues; the other is to open the lock tongue with a key outside the door, and to open the outer handle oblique tongue, and the inner handle can be opened together with the lock tongue and the oblique tongue. No matter which kind, the key cannot open the oblique tongue, and the key cannot be opened together with the lock tongue and the oblique tongue at one time, and the handle is needed to be cooperated, which is not very convenient. SUMMARY

[0003] The present application is aimed at the above-mentioned defects of the existing theft-proof lock, and provides a theft-proof lock which can be opened together with the lock tongue and the oblique tongue at one time, and the opening is quick and convenient when the lock is opened with a key or a handle.

[0004] The object of the present application can be realized by the following technical scheme:

[0005] A quick opening anti-theft lock, comprising a faceplate, a lock body, a lock bolt, a lock bolt plate, a latch bolt and a latch bolt plate, the lock bolt plate and the latch bolt plate are both slidingly arranged on the lock body, the lock bolt is fixedly connected with the lock bolt plate and can be extended out of or retracted into a lock bolt hole on the faceplate, the latch bolt is fixedly connected with the latch bolt plate and can be extended out of or retracted into a latch bolt hole on the faceplate, the lock body is provided with a first thrust assembly and a second thrust assembly respectively for enabling the lock bolt and the latch bolt to have an extending tendency, the lock body is further provided with a lock cylinder and a rotating assembly for driving the lock bolt and the latch bolt to move, the lock cylinder is provided with a gear, characterized in that the rotating assembly comprises a transmission gear, a driving gear, a transmission member, a yoke and a yoke plate, the transmission gear is rotatably arranged on the lock body through a rotating shaft, the driving gear and the transmission member are concentrically arranged on the rotating shaft, the transmission member is fixedly connected with the transmission gear, the transmission member is provided with a limiting portion, the driving gear is externally meshed with the gear, the driving gear can rotate relative to the transmission member to push the transmission member to rotate synchronously by abutting against the limiting portion, the transmission member is connected with the lock bolt plate through a connecting structure, one end of the yoke is provided with external teeth and is externally meshed with the transmission gear, the other end of the yoke is arranged on the lock body in a concentric manner with the yoke plate and the rotating centers of the yoke and the yoke plate are provided with a square hole rotating member for connecting a handle, the yoke, the yoke plate and the square hole rotating member are connected through a clutching structure, the lock body is provided with a yoke engaging position and a yoke disengaging position, when the yoke is located at the yoke engaging position, the lock bolt is in a locking state, the handle can drive the yoke plate and the yoke to synchronously rotate by rotating to open the lock through the square hole rotating member, when the yoke is located at the yoke disengaging position, the lock bolt is in an unlocking state, the handle can drive the yoke plate to rotate alone by rotating to open the lock through the square hole rotating member, one end of the yoke plate is provided with a driving piece, the driving gear is provided with a driving pin, the driving piece blocks the movement path of the driving pin when the lock is opened, the other end of the yoke plate is provided with a yoke pin, the yoke pin abuts against the latch bolt plate and can rotate with the yoke plate to drive the latch bolt plate to retract the latch bolt, when the latch bolt is ejected under the action of the second thrust assembly, the latch bolt plate can reversely drive the yoke pin to reset the yoke plate.

[0006] In the quick opening anti-theft lock, the latch bolt plate is provided with a guide groove, the lock body is provided with a guide column arranged in the guide groove, and the guide groove is arranged in the same direction as the movement direction of the latch bolt.

[0007] In the quick opening anti-theft lock, the connecting structure is a hinged plate, and the two ends of the hinged plate are respectively hinged with the transmission member and the lock bolt plate.

[0008] In the quick opening anti-theft lock, the transmission member comprises an upper piece and a lower piece arranged in a vertical manner, the limiting portions are connecting pins, the connecting pins are provided in plurality, the upper piece and the lower piece are fixedly connected through the connecting pins, the driving gear is arranged between the upper piece and the lower piece, the driving gear is provided with arc-shaped grooves corresponding to the connecting pins in one-to-one manner, and the connecting pins are arranged in the corresponding arc-shaped grooves.

[0009] In the quick-opening anti-theft lock, the width of the arc-shaped slot is similar to the diameter of the part of the connecting pin located in the arc-shaped slot, and the arc-shaped slots are concentric with the rotating center of the transmission tooth.

[0010] In the quick-opening anti-theft lock, the transmission tooth is fixed on the upper piece, and the hinged plate is hinged on the lower piece.

[0011] In the quick-opening anti-theft lock, the clutch structure comprises a clutch piece, the clutch piece, the fork and the push piece are concentrically arranged, the fork is fixed on the clutch piece, the clutch piece, the fork and the push piece all have circular and same-sized inner holes, the clutch piece, the fork and the push piece are all provided with two symmetrically arranged inner convex limit points, the projections of the limit points on the center line of the inner hole of the clutch piece and the fork are coincident, the square hole rotating piece is located in the inner hole, the two limit points in the same inner hole are arranged on the two sides of the square hole rotating piece, the square hole rotating piece can rotate in the range between the two limit points or push the limit points to rotate synchronously by leaning on the limit points, when in the working position, the projections of the two limit points on the clutch piece and the two limit points on the push piece along the center line of the inner hole are coincident, when in the non-working position, the projections of the two limit points on the clutch piece and the two limit points on the push piece along the center line of the inner hole are symmetrically arranged.

[0012] In the quick-opening anti-theft lock, the clutch piece comprises three clutch pieces arranged concentrically from top to bottom, the three clutch pieces are all provided with the limit points, and the three clutch pieces are fixed by the fixing piece, wherein the upper clutch piece is fixed with the fork, the square hole rotating piece is provided with two pieces arranged in upper and lower positions, the upper square hole rotating piece is arranged in the inner hole of the fork, the upper clutch piece and the middle clutch piece, the push piece is located between the middle clutch piece and the lower clutch piece, and the lower square hole rotating piece is arranged in the inner hole of the push piece and the lower clutch piece.

[0013] In the quick-opening anti-theft lock, the first push force assembly comprises a first guide rod and a first spring sleeved on the first guide rod, one end of the first guide rod is fixed on the lock body, the other end of the first guide rod is arranged through the lock tongue plate, the extension direction of the first guide rod is consistent with the movement direction of the lock tongue, and the first spring is compressed and elastically arranged between the lock body and the lock tongue plate.

[0014] In the quick-opening anti-theft lock, the second push force assembly comprises a second guide rod and a second spring sleeved on the second guide rod, one end of the second guide rod is fixed on the lock body, the other end of the second guide rod is arranged through the latch plate, the extension direction of the second guide rod is consistent with the movement direction of the latch, and the second spring is compressed and elastically arranged between the lock body and the latch plate.

[0015] In the quick-opening anti-theft lock, the anti-theft lock is further provided with a locking mechanism for locking the lock tongue after being retracted to a position, the locking mechanism comprises a clamping plate, a tension spring, a clamping hook, a clamping pin and a clamping torsion spring, two ends of the tension spring are connected to the lock body and the clamping plate respectively and are in a stretched state, the clamping plate is connected to the lock body through a limiting structure, under the action of the limiting structure, the clamping plate can only move back and forth relative to the lock body in a direction perpendicular to the movement direction of the lock tongue, a sliding block is arranged on the lock tongue plate, a sliding groove is arranged on the lock body for sliding of the sliding block, a movable slot is arranged on the clamping plate corresponding to the position of the sliding groove, the extension directions of the sliding groove and the movable slot are consistent with the movement direction of the lock tongue, both ends of the movable slot are provided with positioning notches, the two positioning notches on the same movable slot are located on the same side of the movable slot, when the lock tongue is switched between the locked state and the unlocked state, the sliding block will move from the positioning notch at one end of the movable slot into the positioning notch at the other end, and when the sliding block slides out of the positioning notch, the clamping plate will move in the direction of stretching the tension spring, when the sliding block slides into the positioning notch, the clamping plate will move in the direction of compressing the tension spring and reset under the action of the tension spring, the clamping hook is rotatably arranged on the lock tongue plate, the clamping pin is fixed on the clamping plate, a clamping notch is arranged on the lock tongue plate, the clamping notch is in the shape of "7", the clamping hook is located at the upper part of the "7", a hook groove is arranged on the clamping hook, when the lock tongue is retracted, through cooperation of the movement of the clamping plate and the movement of the lock tongue plate, the clamping pin slides into the clamping notch from the lower part of the "7" to the upper part of the "7" relative to the clamping notch and makes the clamping hook rotate in the direction of increasing the torsion force of the clamping torsion spring in the sliding process, until the clamping pin falls into the hook groove of the clamping hook, the hook groove restricts movement of the clamping pin with the clamping plate in the direction of stretching the tension spring, so as to fix the lock tongue plate.

[0016] In the quick-opening anti-theft lock, the limiting structure comprises a limiting slot and a limiting column, the limiting slot is arranged on the clamping plate, the limiting column is located in the limiting slot and is fixed on the lock body, the extension direction of the limiting slot is perpendicular to the movement direction of the lock tongue.

[0017] In the quick-opening anti-theft lock, the anti-theft lock is further provided with a quick locking mechanism, the quick locking mechanism comprises a guide hook and a rotary spring, one side of one end of the guide hook is rotatably arranged on the latch plate and the other side of the end is connected to one end of the rotary spring, the other end of the rotary spring is connected to the tumbler located on the side of the guide hook, the other end of the guide hook extends in the direction of retraction of the latch and is provided with a pulling hook, the side of the guide hook located on the side of the tumbler is provided with a guide edge, under the action of the rotary spring, the guide edge always leans against the tumbler, when the latch is pressed to retract into the lock body, through the limiting action of the tumbler, the guide hook moves with the latch plate and rotates under the action of the guide edge, until the pulling hook hooks the clamping hook, the latch is released, the latch is ejected under the action of the second pushing assembly and at the same time the clamping hook is rotated to be separated from the clamping pin under the action of the pulling hook, so that the lock tongue plate is ejected under the action of the first pushing assembly.

[0018] In the aforementioned quick-opening anti-theft lock, the pin and the rotating assembly are respectively located on both sides of the guide hook.

[0019] In the aforementioned quick-opening anti-theft lock, a limiting plate is provided on the tongue plate, and a limiting gap is left between the limiting plate and the tongue plate to prevent the pull end of the guide hook from tilting upwards. The guide hook always moves within the limiting gap.

[0020] In the aforementioned quick-opening anti-theft lock, the guide edge is arc-shaped.

[0021] In the aforementioned quick-opening anti-theft lock, the hook includes multiple hook teeth.

[0022] In the aforementioned quick-opening anti-theft lock, the first thrust assembly is provided in two sets, respectively located at both ends of the latch plate. The transmission component is located between the two sets of first thrust assemblies. A balance torsion spring is provided on the rotating shaft, and a positioning pin is provided on the lock body. One end of the balance torsion spring is connected to the positioning pin, and the other end is connected to the transmission component. The force of the balance torsion spring causes the transmission component to have a tendency to rotate in the direction of driving the latch to extend. During the extension of the latch, the force gradually increases.

[0023] In the aforementioned quick-opening anti-theft lock, the total resultant force of the two first springs and the aforementioned balance torsion spring acting on the aforementioned lock tongue plate remains constant.

[0024] In the aforementioned quick-opening anti-theft lock, the latch plate is also provided with a damper, and the damper is provided with a damping rod. One end of the damping rod extends out of the damper and rests on the aforementioned panel. The direction of extension of the damping rod is consistent with the direction of movement of the latch plate.

[0025] In the aforementioned quick-opening anti-theft lock, the lock body is also provided with a safety mechanism, which includes a safety block and a safety spring. The safety block is rotatably mounted on the lock body. The aforementioned kala plate has a locking point, and the safety block has a dial that can press against the locking point. The two ends of the safety torsion spring are respectively connected to the safety block and the lock body. The torque of the safety torsion spring causes the dial to press against the locking point, thereby fixing the kala plate.

[0026] In the aforementioned quick-opening anti-theft lock, the dial is V-shaped.

[0027] In the aforementioned quick-opening anti-theft lock, the direction of the pressing head intersects with the direction of movement of the aforementioned karaoke plate.

[0028] In the aforementioned quick-opening anti-theft lock, both ends of the lock body are equipped with top and bottom rods.

[0029] Compared with existing technologies, this invention allows for simultaneous unlocking of the bolt and latch using either a key or a handle, making unlocking quick and convenient. After unlocking, the latch extends quickly and smoothly. The locking mechanism securely locks the bolt plate. Locking is quick and convenient by pressing the latch. The balanced torsion spring effectively ensures the bolt extends fully during locking, ensuring reliable locking. The damper ensures smooth bolt movement, effectively preventing impacts, extending service life, and reducing noise. The safety mechanism reliably ensures the bolt plate remains securely locked in both locked and unlocked states. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the rotating assembly.

[0032] Figure 3 This is a side view of the rotating component;

[0033] Figure 4 This is a schematic diagram of the clutch mechanism;

[0034] Figure 5 This is a schematic diagram of the quick-locking mechanism;

[0035] Figure 6 This is a schematic diagram of the locking tongue plate.

[0036] Figure 7 This is a schematic diagram of the structure of the Kara plate;

[0037] Figure 8 This is a schematic diagram of the lock body.

[0038] In the diagram, 1. Panel; 2. Lock body; 3. Lock tongue; 4. Lock tongue plate; 5. Slanted tongue; 6. Slanted tongue plate; 7. Slide groove; 8. First guide rod; 9. First spring; 10. Second guide rod; 11. Second spring; 12. Transmission gear; 13. Drive gear; 14. Shift fork; 15. Shift piece; 16. Clutch; 17. Square hole rotating part; 18. Rotating shaft; 19. Hinge plate; 20. Shift pin; 21. Knob plate; 22. Tension spring; 23. Hook; 24. Lock pin; 25. Anti-torsion spring; 2 6. Limiting groove; 27. Limiting post; 28. Movable groove; 29. ​​Positioning notch; 30. Locking notch; 31. Guide hook; 32. Rotary spring; 33. Balance torsion spring; 34. Damper; 35. Damping rod; 36. Safety block; 37. Safety spring; 38. Dial head; 39. Locking point; 40. Transmission component; 41. Upper plate; 42. Lower plate; 43. Connecting pin; 44. Arc groove; 42. Limiting point; 46. Drive plate; 47. Drive pin; 48. Clutch plate; 49. Slider. Detailed Implementation

[0039] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0040] like Figure 1 As shown, the present invention provides a quick-opening anti-theft lock, including a panel 1, a lock body 2, a bolt 3, a bolt plate 4, a latch 5, a latch plate 6, a lock cylinder, and a rotating assembly. The lock body 2 is also provided with a locking mechanism and a quick-locking mechanism. The panel 1 is located at the front end of the lock body 2, and the panel 1 has a bolt hole 3 and a latch hole 5. The bolt 3 is fixed to the front end of the bolt plate 4. The bottom surfaces of both ends of the bolt plate 4 are provided with sliders 49. The lock body 2 is provided with grooves 7 corresponding to the sliders 49 one by one. Figure 8 As shown, a first thrust assembly is provided at both ends of the latch plate 4. The first thrust assembly includes a first guide rod 8 and a first spring 9 sleeved on the first guide rod 8. One end of the first guide rod 8 is fixed to the lock body 2, and the other end passes through the latch plate 4. The extension direction of the first guide rod 8 is consistent with the extension direction of the latch 3. The first spring 9 is compressed and rests between the lock body 2 and the latch plate 4. The first spring 9 can push the latch plate 4 to drive the latch 3 to move forward and extend out of the latch hole 3. The inclined tongue plate 6 is provided with a guide groove, and the lock body 2 is provided with a guide post passing through the guide groove. The opening direction of the guide groove is consistent with the direction of the inclined tongue 5. The guide post and guide groove not only guide the movement direction of the latch plate 6, but also limit the extreme movement position of the latch plate 6. A second thrust assembly is provided between the latch plate 6 and the lock body 2. The second thrust assembly includes a second guide rod 10 and a second spring 11 sleeved on the second guide rod 10. One end of the second guide rod 10 is fixed to the lock body 2, and the other end passes through the latch plate 6. The extension direction of the second guide rod 10 is consistent with the extension direction of the latch plate 5. The second spring 11 is compressed and rests between the lock body 2 and the latch plate 6. The first guide rod 8 and the second guide rod 10 are parallel.

[0041] like Figures 1 to 4As shown, the rotating assembly is located in the middle of the lock body 2, between the two first guide rods 8. The rotating assembly includes a transmission gear 12, a drive gear 13, a transmission component 40, a shift fork 14, a shift plate 15, a clutch component 16, and a square hole rotating component 17. The transmission component 40 includes an upper plate 41 and a lower plate 42 arranged vertically. The transmission gear 12, upper plate 41, drive gear 13, and lower plate 42 are arranged sequentially from top to bottom and are all concentrically mounted on a rotating shaft 18. The transmission gear 12 is fixed on the upper plate 41 and is fixedly connected to the rotating shaft 18. A hinge plate 19 is provided on the bottom surface of the lower plate 42. The two ends of the hinge plate 19 are respectively hinged to the lower plate 42 and the latch plate 4. Rotating the lower plate 42 can drive the latch plate 4 to move back and forth through the hinge plate 19. The upper plate 41 and the lower plate 42 are fixed by multiple connecting pins 43. The drive gear 13 is provided with arc-shaped grooves 44 corresponding to the connecting pins 43. The corresponding connecting pins 43 pass through the corresponding arc-shaped grooves 44. The width of the arc-shaped grooves 44 is similar to the diameter of the part of the connecting pin 43 located in the arc-shaped grooves 44. The multiple arc-shaped grooves 44 are concentric with the rotation center of the transmission gear 12, so it can ensure that the drive gear 13 and the transmission gear 12 rotate concentrically. The drive gear 13 can rotate relative to the transmission component 40 within the arc-shaped grooves 44, and can also push the transmission component 40 to rotate synchronously by relying on the connecting pins 43. Conversely, the connecting pins 43 can also push the drive gear 13 to rotate synchronously through the end of the arc-shaped grooves 44. The lock cylinder is located on the upper left of the drive gear 13. The lock cylinder is provided with a gear that meshes with the drive gear 13. The key can rotate to drive the gear to rotate, thereby driving the drive gear 13 to rotate.

[0042] The shift fork 14 has external teeth at one end that mesh with the transmission teeth 12. The other end of the shift fork 14 is concentrically arranged with the shift plate 15, the clutch 16, and the square hole rotating component 17. The rotation center of the shift fork 14 is located to the upper right of the transmission teeth 12. There are two square hole rotating components 17, which are concentrically arranged vertically. The clutch 16 includes three clutch plates 48 arranged sequentially from top to bottom. The three clutch plates 48 are fixedly connected by a fixing member. The shift fork 14 is fixed on the upper clutch plate 48. The square hole rotating component 17 is located on the upper part of the clutch plate 48. 7. A lever 15 is located between the middle clutch 48 and the lower clutch 48, within the inner holes of the shift fork 14, the upper clutch plate 48, and the lower square-hole rotating component 17. The inner holes of the clutch plate 48, shift fork 14, and lever 15 are all circular and of the same size. Each inner hole has two symmetrically arranged inwardly protruding limiting points 45. The square-hole rotating component 17 has a square hole at its center for connecting to the square steel handle. The outer periphery is enclosed by two arc surfaces and two planes, and the two arc surfaces and two planes are symmetrical. The two arc surfaces are concentric and the diameter of the enclosed circle is adapted to the inner diameter of the lever 15. Two limiting points 45 in the same inner hole are respectively set on both sides of the square hole rotating component. The square hole rotating component can rotate within the range between the two limiting points 45 or push the limiting points 45 to rotate synchronously. With the connection of the square steel, the upper and lower square hole rotating components 17 are always in the same position. One end of the lever 15 is provided with a driving plate. 46. ​​A drive pin 47 is provided on the drive tooth 13. The drive plate 46 blocks the movement path of the drive pin 47 in counterclockwise rotation. A pin 20 is provided on the other end of the lever 15. A recessed groove is provided on the right side of the tongue plate 6. The pin 20 rests against the inner wall of the groove. When the lever 15 rotates clockwise, it can drive the tongue plate 6 to move and cause the tongue 5 to retract into the lock body 2. When the tongue 5 pops out under the action of the second spring 11, the tongue plate 6 can push the pin 20 in the opposite direction to make the lever 15 rotate counterclockwise back to its original position.

[0043] When both the latch 3 and the oblique latch 5 are extended and in the locked state, the limiting points 45 of the inner hole of the lever 15 rest against the lower square hole rotating part 17, with one located at the front right side of the square hole rotating part 17 and the other at the rear left side of the square hole rotating part 17. Simultaneously, the limiting points 45 of the fork 14 and the clutch plate 48 are located at the same position as the upper limit point 45 of the lever 15. Therefore, rotating the square hole rotating part 17 clockwise will cause the lever 15 and the fork 14 to rotate synchronously, at which point the fork 14 is in the engaged position. When the latch 3 is retracted and in the unlocked state... The oblique tongue 5 is in the extended state. Similarly, the limiting point 45 of the inner hole of the lever 15 rests on the square hole rotating part 17, with one of them located at the front right side of the square hole rotating part 17 and the other at the rear left side of the square hole rotating part 17. The limiting point 45 of the inner hole of the shift fork 14 and the clutch 16 is located at the rear right side of the square hole rotating part 17 and the other at the front left side of the square hole rotating part 17. Therefore, rotating the square hole rotating part 17 clockwise can only make the lever 15 rotate alone, while the shift fork 14 remains stationary. At this time, the shift fork 14 is in the off-position.

[0044] The locking mechanism includes a locking plate 21, a tension spring 22, a latch 23, a latching pin 24, and a locking torsion spring 25. The locking plate 21 is located at the rear of the lock body 2, and the tension spring 22 is located at the right end of the locking plate 21. A fixing pin is provided on the lock body 2. The two ends of the tension spring 22 are respectively connected to the locking plate 21 and the fixing pin and are in a stretched state. Three limiting grooves 26 are provided on the locking plate 21 from left to right. Figure 7 As shown, each limiting groove 26 is provided with a limiting post 27, which is vertically fixed on the lock body 2. The extension direction of the limiting groove 26 is perpendicular to the movement direction of the bolt 3, that is, it extends from left to right. The lock plate 21 has movable grooves 28 corresponding to the positions of the bolt 4 slider 49 for the slider 49 to pass through. The slider 49 passes through the movable groove 28 and the sliding groove 7 from top to bottom. The extension direction of the sliding groove 7 and the movable groove 28 is consistent with the movement direction of the bolt 3. The two ends of the movable groove 28 are provided with positioning notches 29. The two positioning notches 29 on the same movable groove 28 are located on the left side of the movable groove 28. When the slider 49 moves to one end of the movable groove 28, under the action of the elastic force of the tension spring 22, the karaoke plate 21 can move to the right along the extension direction of the limiting groove 26, so that the slider 49 is located in the positioning notch 29 at that end of the movable groove 28 and the slider 49 is close to the positioning notch 29. At this time, the movable groove 28 and the corresponding lower sliding groove 7 are offset to the left and right. The positions of the front and rear positioning notches 29 are the limit positions of the slider 49's front and rear movements. When the locking tongue 3 switches from the locked state to the unlocked state, the slider 49 will move from the front positioning notch 29 to the rear positioning notch 29. And when the slider 49 moves from the positioning notch 29 into the movable groove 28, it will push the karaoke plate 21 to the left through the movable groove 28. Therefore, every time the locked and unlocked states are switched, the karaoke plate 21 will move left and right once, first to the right, and then to the left to reset.

[0045] Hook 23 is located on the right side of the slanted tongue plate 6, as shown. Figure 6 As shown, the right end of the hook 23 is rotatably mounted on the latch plate 4. The latch plate 4 has a locking notch 30, which is shaped like a "7". The hook 23 is located at the upper part of the "7". The hook 23 has a hook groove. The locking torsion spring 25 rests between the hook 23 and the latch plate 4. The locking pin 24 is fixed on the sliding plate 21. When the latch 3 retracts, the movement of the sliding plate 21 and the movement of the latch plate 4 are coordinated. That is, the locking pin 24 moves left and then right with the sliding plate 21, and the latch plate 4 moves backward. This causes the locking pin 24 to slide upward from the lower part of the "7" into the locking notch 30. During the sliding process, the locking pin 24 pushes the hook 23 to rotate clockwise, gradually increasing the torque of the locking torsion spring 25, until it falls into the hook groove of the hook 23 and locks. Because the lower part of the locking pin 24 is blocked on the inner wall of the locking notch 30, the locking tongue plate 4 cannot move forward. The locking pin 24 needs to move to the left to disengage from the locking notch 30, and the locking hook 23 restricts the locking pin 24 from moving to the left, thus locking the locking tongue plate 4.

[0046] like Figure 1 and 5 As shown, the quick-locking mechanism includes a guide hook 31 and a rotary spring 32. The right side of the front end of the guide hook 31 is rotatably mounted on the latch plate 6, and the left side of this end is connected to one end of the rotary spring 32. The other end of the rotary spring 32 is connected to a pin 20 located on the right side of the guide hook 31. The pin 20 is located between the front and rear ends of the guide hook 31. The rear end of the guide hook 31 extends along the retraction direction of the latch 3, and this end is provided with a hook, which includes multiple hook teeth. A vertical limiting plate is provided on the latch plate 6. A limiting gap is left between the bottom right side of the limiting plate and the upper surface of the latch plate 6. The guide hook 31 moves through this limiting gap. The right side of the limiting plate extends to the right front to ensure that the guide hook 31 is also within the limiting gap when rotating. The limiting gap ensures that the guide hook 31 will not tilt up. The front end of the second guide rod 10 The guide hook 31 is mounted on the limiting plate; the guide hook 31 is located on the side of the pin 20 and has a guide edge. The guide edge is arc-shaped. Under the action of the rotating spring 32, the guide edge always rests on the pin 20. When the tongue 5 is pressed and retracted into the lock body 2, the guide hook 31 moves with the lock tongue plate 4 and rotates counterclockwise under the action of the guide edge until the hook engages the aforementioned latch 23. The tongue 5 is released and pops out under the action of the second spring 11. At the same time, the hook drives the latch 23 to rotate clockwise and disengage from the aforementioned latch 24, thereby causing the lock tongue plate 4 to pop out under the action of the first spring 9. When the tongue 5 is opened by the movement of the tongue plate 6 driven by the aforementioned lever 15, the guide hook 31 will not rotate because the pin 20 moves with the tongue plate 6, and therefore will not lock.

[0047] Because the elastic force of the two first springs 9 decreases when the latch 3 extends, the latch 3 may not extend fully. Therefore, a balance torsion spring 33 is provided on the rotating shaft 18 of the transmission gear 12, and a positioning pin is provided on the lock body 2. One end of the balance torsion spring 33 is hooked on the positioning pin, and the other end is connected to the transmission component 40. The force of the balance torsion spring makes the transmission component 40 tend to rotate in the direction that drives the latch 3 to extend. During the extension of the latch 3, this force gradually increases, and the total resultant force of the two first springs 9 and the balance torsion spring 33 on the latch plate 4 remains constant. When the latch 3 extends, the elastic force of the two first springs 9 gradually decreases, while the force of the balance torsion spring 33 gradually increases, ensuring that the latch 3 moves to the correct position.

[0048] The latch plate 4 is also provided with a damper 34, and the damper 34 is provided with a damping rod 35. One end of the damping rod 35 extends forward from the damper 34 and presses against the panel 1. During the extension of the latch 3, the damper 34 has a buffering effect on the latch plate 4, so that the latch plate 4 moves smoothly, avoids the latch 3 from colliding, and has a silent effect.

[0049] The lock body 2 is also equipped with a safety mechanism, which includes a safety block 36 and a safety spring 37. The safety block 36 is located at the left end of the karaoke plate 21 and is rotatably mounted on the lock body 2. The karaoke plate 21 has a locking point 39, and the safety block 36 has a dial 38. The dial 38 is "V" shaped. When the safety block 36 is rotated counterclockwise, the dial 38 can be angled downward and pressed against the locking point 39. The two ends of the safety torsion spring are respectively connected to the safety block 36 and the limiting post 27 located at the left end of the karaoke plate 21. The torque of the safety torsion spring causes the dial 38 to press against the locking point 39, thereby fixing the karaoke plate 21 and restricting its left and right movement. Since the movement of the latch plate 4 requires the karaoke plate 21 to move left and right, fixing the karaoke plate 21 can fix the latch plate 4. Rotating the safety block 36 clockwise causes the dial 38 to move away from the locking point 39, thereby unlocking the lock.

[0050] Both ends of the lock body 2 are equipped with top and bottom rods. When the bolt 3 pops out, the left top and bottom rod extends to the left and the right top and bottom rod extends to the right. When the bolt 3 retracts, both top and bottom rods retract inward.

[0051] Work process:

[0052] When the key unlocks, the shift fork 14 is in the engaged position. The key turns, driving the drive gear 13 counter-clockwise via the gears. The drive gear 13 rests against the connecting pin 43, driving the transmission component 40 and the transmission gear 12 to rotate. This causes the hinge plate 19 to move and pull the lock tongue 4. The rotation of the transmission gear 12 causes the shift fork 14 to rotate clockwise. Simultaneously, during the movement of the drive gear 13, its drive pin 47 pushes the shift plate 15 clockwise via the drive plate 46 of the shift plate 15, thereby utilizing the shift fork... During the clockwise rotation of the pin 20 on plate 15, the slanted tongue plate 6 is pushed inward to retract the slanted tongue 5. When the locking tongue plate 4 is in place, that is, after the hook 23 on the locking tongue plate 4 locks the pin 24 on the locking plate 21, the slanted tongue plate 6 will move forward under the pushing force of the second spring 11, causing the slanted tongue 5 to pop out. During the movement of the slanted tongue plate 6, the pin 20 will cause the slanted plate 15 to rotate counterclockwise back to its original position. During the rotation of the slanted plate 15, the drive tooth 13 will also rotate clockwise back to its original position.

[0053] When the handle is unlocked, the fork 14 is in the closed position. The handle drives the square hole rotating part 17 to rotate clockwise through the square steel. The fork 14 and the lever 15 rotate clockwise synchronously. The lever 15 pushes the tongue plate 6 to move inward through the pin 20, retracting the tongue 5. The fork 14 drives the transmission part 40 to rotate counterclockwise through the transmission gear 12, thereby driving the hinge plate 19 to move and pull the lock tongue plate 4, retracting the lock tongue 3. When the lock tongue plate 4 moves to the position, as above, the tongue plate 6 will move forward under the pushing force of the second spring 11, causing the tongue 5 to pop out. During the movement of the tongue plate 6, the lever 15 will rotate counterclockwise back to its position through the pin 20.

[0054] When locked, the closing door presses the latch 5, driving the latch plate 6 to move. At this time, the lever 15 remains stationary. During the movement of the latch plate 6, the guide plate will rotate counterclockwise under the guidance of the lever pin 20, moving inward and rotating until the hook on the guide plate catches the hook 23 located on the right side of the guide plate. When the latch 5 loses the external force of pressing, the latch plate 6 moves towards the extension direction of the latch 5 under the action of the second spring 11, so that the hook 23 can rotate clockwise through the hook and disengage from the locking pin 24. At this time, the locking tongue plate 4 moves towards the extension direction of the locking tongue 3 under the push of the first spring 9 and drives the locking plate 21 to move to the left, so that the locking pin 24 disengages from the above-mentioned locking notch 30, and the locking tongue plate 4 drives the locking tongue 3 to pop out smoothly.

[0055] It should be understood that in the claims and description of this invention, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".

[0056] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A quick-opening anti-theft lock, comprising a panel (1), a lock body (2), a bolt (3), a bolt plate (4), a latch (5), and a latch plate (6), wherein the bolt plate (4) and the latch plate (6) are slidably disposed on the lock body (2), the bolt (3) is fixedly connected to the bolt plate (4) and the bolt (3) can extend or retract from the bolt hole on the panel (1), the latch (5) is fixedly connected to the latch plate (6) and the latch (5) can extend or retract from the latch hole on the panel (1), the lock body (2) is respectively provided with a first thrust assembly and a second thrust assembly that give the bolt (3) and the latch (5) an extension tendency, the lock body (2) is also provided with a lock cylinder and a rotating assembly that drives the bolt (3) and the latch (5) to move, the lock cylinder is provided with gears, characterized in that, The rotating assembly includes a transmission gear (12), a drive gear (13), a transmission component (40), a shift fork (14), and a shift plate (15). The transmission gear (12) is rotatably mounted on the lock body (2) via a rotating shaft (18). The drive gear (13) and the transmission component (40) are concentrically mounted on the rotating shaft (18). The transmission component (40) is fixedly connected to the transmission gear (12). The transmission component (40) is provided with a limiting part. The drive gear (13) meshes externally with the aforementioned gear. The drive gear (13) can move relative to the transmission component (40). The upper limit part rotates and pushes the transmission component (40) to rotate synchronously. The transmission component (40) is connected to the above-mentioned lock tongue plate (4) through a connecting structure. One end of the shift fork (14) is provided with external teeth and meshes with the above-mentioned transmission teeth (12). The other end of the shift fork (14) and the above-mentioned shift piece (15) are concentrically rotated on the lock body (2), and the center of rotation of the two is provided with a square hole rotating part (17) for connecting the handle. The shift fork (14), shift piece (15) and square hole rotating part (17) are connected by a clutch structure. The lock body (2) is provided with a closing position and an opening position for the shift fork (14). When the shift fork (14) is in the closing position, the lock tongue (3) is in the locked state. The handle can drive the shift plate (15) to rotate synchronously with the shift fork (14) by rotating the square hole rotating part (17). When the shift fork (14) is in the opening position, the lock tongue (3) is in the unlocked state. The shift plate (15) can be driven to rotate independently by rotating the square hole rotating part (17). One end of the shift plate (15) is provided with a drive plate (46) and the aforementioned drive teeth (13). The lock body (2) is provided with a drive pin (47) and a drive plate (46) blocking the movement path of the drive pin (47) when unlocking. The other end of the lever (15) is provided with a lever pin (20). The lever pin (20) rests on the above-mentioned tongue plate (6) and can rotate with the lever (15) to drive the tongue plate (6) to retract the tongue (5). When the tongue (5) pops out under the action of the second thrust component, the tongue plate (6) can reverse the lever pin (20) to return the lever (15) to its original position. Both ends of the lock body (2) are provided with top and bottom rods.

2. The quick-opening anti-theft lock according to claim 1, characterized in that, The transmission component (40) includes an upper piece (41) and a lower piece (42) arranged vertically. The limiting part is a connecting pin (43). There are multiple connecting pins (43). The upper piece (41) and the lower piece (42) are fixedly connected by multiple connecting pins (43). The driving teeth (13) are arranged between the upper piece (41) and the lower piece (42). The driving teeth (13) are provided with arc-shaped grooves (44) that correspond one-to-one with the connecting pins (43). The corresponding connecting pins (43) pass through the corresponding arc-shaped grooves (44).

3. A quick-opening anti-theft lock according to claim 1 or 2, characterized in that, The clutch structure includes a clutch component (16), which is concentrically arranged with the aforementioned square hole rotating component (17), shift fork (14), and shift plate (15). The shift fork (14) is fixed on the clutch component (16). The clutch component (16), shift fork (14), and shift plate (15) all have circular inner holes of the same size. The inner holes of the clutch component (16), shift fork (14), and shift plate (15) are each provided with two symmetrically arranged inwardly protruding limiting points. The limiting points on the clutch component (16) and shift fork (14) are along the center of the aforementioned inner holes. The projections of the lines coincide, the square hole rotating part (17) is located in each inner hole, and the two limiting points in the same inner hole are respectively set on both sides of the square hole rotating part. The square hole rotating part (17) can rotate within the range between the two limiting points or push the limiting points to rotate synchronously by leaning on the limiting points. When in the above-mentioned working position, the projections of the two limiting points on the clutch (16) and the two limiting points on the lever (15) along the inner hole center line coincide. When in the above-mentioned working position, the projections of the two limiting points on the clutch (16) and the two limiting points on the lever (15) along the inner hole center line are symmetrical.

4. A quick-opening anti-theft lock according to claim 1 or 2, characterized in that, The quick-opening anti-theft lock also has a locking mechanism that locks the bolt (3) after it is retracted into place. The locking mechanism includes a locking plate (21), a tension spring (22), a hook (23), a locking pin (24), and a locking torsion spring (25). The two ends of the tension spring (22) are connected to the lock body (2) and the locking plate (21) respectively and are in a stretched state. The locking plate (21) is connected to the lock body (2) through a limiting structure. Under the action of the limiting structure, the locking plate (21) can only move back and forth relative to the lock body (2) in a direction perpendicular to the movement direction of the bolt (3). The bolt plate (4) is provided with a slider. (49) A groove (7) is provided on the lock body (2) for the slider (49) to slide. A movable groove (28) is provided on the knock plate (21) at the position corresponding to the groove (7) for the slider (49) to pass through. The extension direction of the groove (7) and the movable groove (28) is consistent with the movement direction of the bolt (3). Both ends of the movable groove (28) are provided with positioning notches (29). The two positioning notches (29) on the same movable groove (28) are located on the same side of the movable groove (28). When the bolt (3) switches between the locked and unlocked states, the slider (49) will move from the positioning notch at one end of the movable groove (28). When the notch (29) moves to the positioning notch (29) at the other end, and the slider (49) slides out of the positioning notch (29), it will push the karaoke plate (21) to move in the direction of stretching the tension spring (22). When the slider (49) slides into the positioning notch (29), under the action of the tension spring (22), the karaoke plate (21) will move in the direction of compressing the tension spring (22) to reset. The hook (23) is rotatably set on the locking tongue plate (4), and the locking pin (24) is fixed on the karaoke plate (21). A locking notch (30) is opened on the locking tongue plate (4). The locking notch (30) is in the shape of a "7". The hook (23) is located at the top of the "7". The hook (23) has a groove. When the latch (3) is retracted, the movement of the car plate (21) and the movement of the latch plate (4) are coordinated. The pin (24) slides upward from the bottom of the "7" into the latch notch (30) relative to the latch notch (30). During the sliding process, the hook (23) rotates in the direction of increasing torque of the latching torsion spring (25) until it falls into the groove of the hook (23). The groove restricts the pin (24) from moving with the car plate (21) in the direction of stretching the above-mentioned tension spring (22), thereby fixing the latch plate (4).

5. A quick-opening anti-theft lock according to claim 4, characterized in that, The quick-opening anti-theft lock also includes a quick-locking mechanism, which includes a guide hook (31) and a rotating spring (32). One side of the guide hook (31) is rotatably mounted on the aforementioned tongue plate (6), and the other side of that end is connected to one end of the rotating spring (32). The other end of the rotating spring (32) is connected to the aforementioned pin (20) located on one side of the guide hook (31). The other end of the guide hook (31) extends along the retraction direction of the tongue plate (5) and is provided with a hook. The guide hook (31) is provided with a guide edge on the side of the pin (20) where it is located. Under the action of the rotating spring (32), the guide edge always rests on the pin (20). When the tongue (5) is pressed and retracted into the lock body (2), the guide hook (31) moves with the tongue plate (6) and rotates simultaneously under the action of the guide edge through the limiting action of the pin (20) until the hook hooks onto the above-mentioned latch (23), and the tongue (5) is released. The tongue (5) pops out under the action of the second thrust assembly and at the same time, the hook pulls the latch (23) to rotate and disengage from the above-mentioned latch (24), so that the lock tongue plate (4) pops out under the action of the first thrust assembly.

6. A quick-opening anti-theft lock according to claim 5, characterized in that, The pin (20) and the rotating assembly are respectively located on both sides of the guide hook (31).

7. A quick-opening anti-theft lock according to claim 5, characterized in that, The oblique tongue plate (6) is provided with a limiting piece, and a limiting gap is left between the limiting piece and the oblique tongue plate (6) to prevent the pull end of the guide hook (31) from tilting upward. The guide hook (31) always moves within the limiting gap.

8. A quick-opening anti-theft lock according to claim 1 or 2, characterized in that, The first thrust assembly includes a first guide rod (8) and a first spring (9) sleeved on the first guide rod (8). One end of the first guide rod (8) is fixed to the lock body (2) and the other end passes through the latch plate (4). The extension direction of the first guide rod (8) is consistent with the movement direction of the latch (3). The first spring (9) is compressed and rests between the lock body (2) and the latch plate (4). There are two sets of the first thrust assembly, which are respectively located at both ends of the latch plate (4). The transmission component (40) is located between the two sets of the first thrust assembly. The lock body (2) is also provided with a balance torsion spring (33) and a positioning pin. One end of the balance torsion spring (33) is connected to the positioning pin and the other end is connected to the transmission component (40). The force of the balance torsion spring (33) makes the transmission component (40) tend to rotate in the direction that drives the latch (3) to extend. During the extension of the latch (3), the force gradually increases.

9. A quick-opening anti-theft lock according to claim 4, characterized in that, The lock body (2) is also provided with a safety mechanism, which includes a safety block (36) and a safety spring (37). The safety block (36) is rotatably mounted on the lock body (2). The aforementioned karaoke plate (21) is provided with a locking point (39). The safety block (36) is provided with a dial (38). The dial (38) can press against the locking point (39). The two ends of the safety torsion spring are respectively connected to the safety block (36) and the lock body (2). The torque of the safety torsion spring causes the dial (38) to press against the locking point (39), thereby fixing the karaoke plate (21).

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