Lock

Abstract

The invention relates to the technical field of locks, and discloses a lockset which comprises a shell, a first spring bolt assembly, a first shifting peach, a second spring bolt assembly, a second shifting peach, a mechanical lock cylinder, an inclined bolt shifting plate and a lock cylinder shifting plate, the lock cylinder shifting plate is pushed by a third shifting peach in the mechanical lock cylinder, and the other end of the lock cylinder shifting plate can push the inclined bolt shifting plate and the first shifting peach to rotate. And then spring bolts of the first spring bolt assembly and the second spring bolt assembly are retracted into the shell, and emergency unlocking is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and specifically, to a lock. Background Art

[0002] Electronic locks usually have an oblique tongue assembly and a square tongue assembly. When locking and unlocking the lock, it is necessary to control the oblique tongue assembly and the square tongue assembly simultaneously, so a relatively complex linkage structure needs to be provided inside the lock body, which often brings problems such as slow operation response, easy damage of parts, and difficult maintenance. In addition, in an intelligent lock, the locking and unlocking are realized through a control circuit. However, in order to avoid the situation that the lock cannot be unlocked due to a circuit failure, a mechanical unlocking structure is still reserved inside the lock body. Since this mechanical unlocking structure needs to control two groups of lock tongue assemblies simultaneously, there are also problems of complex structure and easy failure. Summary of the Invention

[0003] The present invention is made to solve the above technical problems. One of its purposes is to provide a lock that can realize an emergency unlocking function with a relatively simple structure.

[0004] According to an embodiment of the present invention, there is provided a lock, including: a housing, with a first lock hole and a second lock hole provided on a side wall; a first lock tongue assembly, slidably provided in the housing, including a first lock tongue and a lock tongue plate connected together, and a second dial groove is formed on the lock tongue plate; a first dial cam, rotatably provided in the housing, with a second dial arm formed thereon that is linked to the first lock tongue assembly, and a second dialing portion is formed at one end of the second dial arm and is located in the second dial groove. When the first dial cam rotates forward and backward, the second dialing portion abuts against two opposite side walls of the second dial groove respectively, driving the first lock tongue to slide in the first lock hole; a second lock tongue assembly, including an oblique tongue and a slide plate connected thereto and slidably provided in the housing; a second dial cam, rotatably provided in the housing, with a third dial arm formed thereon that is linked to the second lock tongue assembly. When the second dial cam rotates, the third dial arm drives the oblique tongue to slide in the second lock hole; a mechanical lock core, provided in the housing, having a third dial cam that can be driven by a mechanical key; an oblique tongue dial plate, rotatably provided in the housing, with one end abutting against the side of the slide plate close to the oblique tongue; a lock core dial plate, rotatably provided in the housing, with one end abutting against the dial arm of the third dial cam; wherein, under the push of the third dial cam, the other end of the lock core dial plate can push the oblique tongue dial plate and the second dialing portion to rotate, and then retract the first lock tongue and the oblique tongue into the housing.

[0005] As an embodiment, the lock further includes: a second gear, rotatably disposed in the housing, connected to the first peach, and used to drive the first peach to rotate; a third gear, rotatably disposed in the housing, connected to the second peach, and used to drive the second peach to rotate; a drive motor, the output end of which is transmitted to the second gear and the third gear.

[0006] As an embodiment, the third gear and the second gear shifter are an integrated structure.

[0007] As an embodiment, a fourth gear is rotatably provided between the drive motor and the second gear and the third gear, and the fourth gear is meshed with the second gear, the third gear and the output end for transmission.

[0008] As an embodiment, the first shifting peach is coaxially arranged with the second gear, a third arc-shaped groove is formed on the second gear, and a sixth shifting portion located in the third groove is formed on the side wall of the first shifting peach.

[0009] As an embodiment, the second lock tongue assembly also includes a pull rod and a first return spring, the two ends of the pull rod are respectively connected to the inclined tongue and the slide, one end of the first return spring rests on the inclined tongue or the pull rod or the slide, and applies a force toward the outside of the second lock hole to the inclined tongue or the pull rod or the slide.

[0010] As an embodiment, a latch bolt lever is rotatably provided in the shell, one end of the latch bolt lever abuts against a side of the slide close to the latch bolt, and a stop block linked to the third lever arm is formed on the latch bolt lever; wherein, when the second latch bolt rotates, the third lever arm drives the latch bolt lever to rotate, and then drives the latch bolt to slide toward the inside of the second lock hole.

[0011] As an embodiment, the lock further includes: a latch bolt push rod, which is slidably arranged in the shell, with one end resting on the other end of the latch bolt plate, and the other end resting on the third toggle portion on the lock cylinder plate; an unlocking plate, which is rotatably arranged in the shell, and is formed with a fourth toggle portion and a fifth toggle portion, the fourth toggle portion resting on the second toggle portion, and the fifth toggle portion is connected to the second groove on the lock cylinder plate; wherein when the lock cylinder plate rotates, the second groove pushes the fifth toggle portion to rotate, and then the fourth toggle portion pushes the second toggle portion to rotate, and the third toggle portion pushes the latch bolt push rod to slide, and then the latch bolt plate rotates.

[0012] As an embodiment, the lock further includes: a second return spring, which is arranged in the housing and has one end abutting against the lock core shift plate, so that one end of the lock core shift plate abuts against the shift arm of the third detent.

[0013] As an embodiment, a third groove capable of accommodating the second shifting portion is formed on a side wall of the second shifting slot.

[0014] According to the above description and practice, the lock of the present invention cooperates with the first lock tongue assembly, the first paddle, the second lock tongue assembly and the second paddle in the lock by arranging a mechanical lock core, a tilted tongue plate and a lock core plate in the shell. When the user needs to unlock the lock in an emergency, with the help of a mechanical key, the third paddle in the mechanical lock core can be rotated, driving the lock core plate to rotate, and then driving the second paddle and the tilted tongue plate to rotate, respectively retracting the second lock tongue assembly and the first lock tongue assembly into preset positions to achieve unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of a lock with a top and bottom rod involved in an embodiment of the present invention, wherein in order to show the connection relationship between the top and bottom rod assembly and the first latch, part of the structure of the first lock tongue assembly is hidden.

[0016] Figure 2 This is a schematic diagram of the internal structure of a lock with a top and bottom rod according to an embodiment of the present invention. Figure 1 In comparison, the structure of the first locking tongue assembly is shown.

[0017] Figure 3 This is a schematic diagram of the internal structure of a lock with a top and bottom rod according to an embodiment of the present invention. Figure 2 In comparison, the structure related to the emergency unlocking function is also shown.

[0018] Figure 4 This is a schematic diagram of the internal structure of the lock with a top and bottom rod involved in the first embodiment of the present invention in the locked state after the second gear is reset.

[0019] Figure 5 The figure is a schematic diagram of the internal structure of a lock with a top and bottom rod involved in one embodiment of the present invention after the lock is unlocked by a driving motor.

[0020] Figure 6 The figure is a schematic diagram of the internal partial structure of a lock having a top and bottom rod involved in one embodiment of the present invention after being unlocked by a mechanical lock cylinder.

[0021] Figure 7 The figure is a schematic diagram of the connection between the latch bolt lever and the third gear in a lock with a top and bottom lever according to an embodiment of the present invention.

[0022] Figure 8a and Figure 8b for Figure 6 Schematic diagram of the connection between the lock cylinder plate, unlocking piece and first shifter from two different perspectives.

[0023] Figure 9 for Figure 1 Schematic diagram of the locally enlarged structure in .

[0024] The reference numerals in the figures are:

[0025] 11. Housing; 12. First lock bolt; 13. Lock bolt plate; 14. Latch bolt; 15. Pull rod; 16. Slide plate; 17. Latch bolt lever; 18. Stopper; 19. Top rod; 20. Ground rod; 21. Mechanical lock cylinder; 22. Latch bolt lever; 23. Lock cylinder lever; 24. Latch bolt push rod; 25. Unlocking piece; 31. First gear; 32. Second gear; 33. Third gear; 34. Fourth gear; 35. Drive motor; 41. First shifter; 42. Second shifter; 43. Third shifter; 51 , first toggle arm; 52, second toggle arm; 53, third toggle arm; 61, first toggle part; 62, second toggle part; 63, third toggle part; 64, fourth toggle part; 65, fifth toggle part; 66, sixth toggle part; 71, first groove; 72, second groove; 73, third groove; 74, fourth groove; 81, first return spring; 82, second return spring; 91, first toggle slot; 92, second toggle slot; 111, first lock hole; 112, second lock hole; 113, third lock hole. DETAILED DESCRIPTION

[0026] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0027] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. It should be noted that in the present disclosure, the terms "including", "configured with", and "set on" are used to express open-ended inclusion and mean that in addition to the listed elements / components / etc., there may be additional elements / components / etc.; the terms "first", "second", etc. are used only as labels and are not intended to limit the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0028] Unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] As Figures 1 to 8b shown, in this embodiment, a lock with upper and lower rods is disclosed. The lock with upper and lower rods includes a housing 11, an upper and lower rod assembly, and a first dial 41. The housing 11 can be formed by buckling two parts, and a space for accommodating other components is formed in the middle. Only the structure of one half of the housing 11 is shown in each drawing to display its internal structure. A first lock hole 111, a second lock hole 112, and a third lock hole 113 are provided on the side of the housing 11, and the upper and lower rod assembly and other lock tongues can slide therein.

[0031] The upper and lower rod assembly includes an upper rod 19 and a lower rod 20 slidably arranged in the housing 11 and a first gear 31 rotatably arranged in the housing 11. The first gear 31 is located between the upper rod 19 and the lower rod 20 and meshes with the upper rod 19 and the lower rod 20 for transmission. As Figure 1 shown, two strip holes are respectively provided on the upper rod 19 and the lower rod 20 along the sliding direction, and limit rivets are arranged in the strip holes and fixed on the inner wall of the housing 11. The upper rod 19 and the lower rod 20 can only slide along the strip holes and will not generate displacements in other directions. Rack teeth are formed at positions of the upper rod 19 and the lower rod 20 close to the first gear 31. Through the meshing transmission between the rack teeth and the first gear 31, when the upper rod 19 slides, the first gear 31 is driven to rotate, and then the lower rod 20 can be driven to slide; conversely, when the lower rod 20 slides, the first gear 31 is driven to rotate, and then the upper rod 19 can be driven to slide.

[0032] The first dial 41 is rotatably arranged in the housing 11, and a first dial arm 51 linked with the upper rod 19 or the lower rod is formed thereon. When the first dial 41 rotates, the first dial arm 51 drives the upper rod 19 and the lower rod 20 to slide in the third lock hole 113 respectively. As Figure 1As shown, in this embodiment, the first dialing arm 51 is linked with the ground rod 20. When the first dialing cam 41 rotates clockwise, the first dialing arm 51 drives the ground rod 20 to slide in the positive direction of the Y axis, then drives the first gear 31 to rotate counterclockwise, and then drives the top rod 19 to slide in the negative direction of the Y axis, so that the top rod 19 and the ground rod 20 contract towards the inside of the housing 11 together to achieve unlocking. After that, when the first dialing cam 41 is rotated counterclockwise, the first dialing arm 51 drives the ground rod 20 to slide in the negative direction of the Y axis, then drives the first gear 31 to rotate clockwise, and then drives the top rod 19 to slide in the positive direction of the Y axis, so that the top rod 19 and the ground rod 20 extend towards the outside of the housing 11 together to achieve locking.

[0033] In traditional locks, when the top and bottom rod assembly is driven by the square tongue plate in the square tongue assembly, first the dialing cam drives the square tongue plate to move, and then the square tongue plate drives the top rod 19 and the ground rod 20 to move. In this structural form, as a part of the square tongue assembly, the square tongue plate is prone to failure during use after adding the additional function of driving the top and bottom rod assembly, resulting in the inability to use the square tongue and the top and bottom rod assembly. After setting up an independent mechanism for driving the top and bottom rod assembly to operate in the housing 11, the structure inside the housing 11 will be complicated, and it is also prone to failure during use with the vibration of the lock.

[0034] The top and bottom rod assembly in this embodiment is directly driven by the first dialing cam 41. The first dialing cam 41 can be selected from the dialing cams for driving any lock tongue in traditional locks. Just by meshing a first gear 31 between the top rod 19 and the ground rod 20, the operation of the top and bottom rod assembly can be controlled. Compared with traditional locks, it will not significantly increase the parts inside the housing 11, can drive the top and bottom rod assembly to slide with a relatively simple structure, and is also relatively stable during operation and not prone to failure.

[0035] Specifically, in this embodiment, a first dialing groove 91 is formed on the ground rod 20, and a first dialing part 61 located in the first dialing groove 91 is formed at one end of the first dialing arm 51. When the first dialing cam 41 rotates forward and backward, the first dialing part 61 abuts against two opposite side walls of the first dialing groove 91 respectively, and then drives the ground rod 20 to slide up and down along the Y axis. As Figure 1As shown, when the first shift peach 41 rotates clockwise, the first toggle portion 61 abuts against the upper side wall of the first shift groove 91, driving the ground rod 20 to slide in the positive direction of the Y axis, thereby driving the first gear 31 to rotate counterclockwise, thereby driving the sky rod 19 to slide in the negative direction of the Y axis, causing the sky rod 19 and the ground rod 20 to retract together toward the inside of the housing 11, thereby achieving unlocking; when the first shift peach 41 rotates counterclockwise, the first toggle portion 61 abuts against the lower side wall of the first toggle groove 91, driving the ground rod 20 to slide in the negative direction of the Y axis, thereby driving the first gear 31 to rotate clockwise, thereby driving the sky rod 19 to slide in the positive direction of the Y axis, causing the sky rod 19 and the ground rod 20 to extend together toward the outside of the housing 11, thereby achieving locking. In another embodiment, the first shift groove 91 can also be set on the sky rod 19, and the first gear 31 and the ground rod 20 can be driven to move by the linkage between the first toggle arm 51 and the sky rod 19.

[0036] Furthermore, in this embodiment, a first groove 71 capable of accommodating the first toggle portion 61 is formed on the side wall of the first toggle groove 91. Figure 1 As shown, V-shaped first grooves 71 are provided on the upper and lower sidewalls of the first shifting slot 91. The first shifting portion 61 has a cubic structure. When the first shifting peach 41 rotates, the two corners of the first shifting portion 61 enter the first grooves 71. The contact areas of the first shifting peach 41 and the first shifting portion 61 have the same shape, which enables smoother linkage between the first shifting peach 41 and the ground rod 20. In other embodiments, the shapes of the first grooves 71 and the first shifting portion 61 can be modified to ensure that the contact areas of the first shifting peach 41 and the first shifting portion 61 have the same shape, thereby improving the smoothness of the linkage between the first shifting peach 41 and the ground rod 20.

[0037] Furthermore, in this embodiment, the length direction of the first shifting groove 91 is perpendicular to the sliding direction of the ground rod 20, that is, the first shifting groove 91 is along the Figure 1 Under this structural form, when the first shifting peach 41 rotates, the direction of the force applied by the first shifting arm 51 to the ground rod 20 is the same as or relatively close to the sliding direction of the ground rod 20, which can effectively reduce the resistance during the operation of the first shifting peach 41, ensuring that the lock is smoother in use and less prone to malfunction.

[0038] like Figure 2 As shown, in this embodiment, the lock further includes a first bolt assembly slidably disposed in the housing 11. A second lever arm 52 is formed on the first shifting peach 41 and is linked to the first bolt assembly. When the first shifting peach 41 rotates, the second lever arm 52 drives the first bolt assembly to slide in the first lock hole 111. In a specific embodiment, the first bolt assembly is a square bolt assembly in a traditional lock, which is linked to the first shifting peach 41 and can be controlled by the user to lock and unlock.

[0039] In this embodiment, the first locking tongue assembly includes a first locking tongue 12 and a locking tongue plate 13. The first locking tongue 12 and the locking tongue plate 13 are connected together. The locking tongue plate 13 is slidably disposed in the housing 11, and a second dial groove 92 is formed in the locking tongue plate 13. One end of the second dial arm 52 forms a second dialing portion 62 that is located in the second dial groove 92. When the first dial cam 41 rotates forward and backward, the second dialing portion 62 abuts against two opposite side walls of the second dial groove 92 respectively, driving the first locking tongue 12 to slide in the first locking hole 111 to achieve unlocking and locking. As Figure 2 shown, when the first dial cam 41 rotates counterclockwise, the second dialing portion 62 abuts against the left side wall of the second dial groove 92, pushing the locking tongue plate 13 to slide in the negative X-axis direction, causing the first locking tongue 12 to slide out of the first locking hole 111 to achieve locking; when the first dial cam 41 rotates clockwise, the second dialing portion 62 abuts against the right side wall of the second dial groove 92, pushing the locking tongue plate 13 to slide in the positive X-axis direction, causing the first locking tongue 12 to slide into the housing 11 from the first locking hole 111 to achieve unlocking. Thus, when the first dial cam 41 rotates counterclockwise, it can simultaneously control the first locking tongue assembly and the top and bottom rod assemblies to extend out of the housing 11 to achieve locking. When the first dial cam 41 rotates clockwise, it can simultaneously control the first locking tongue assembly and the top and bottom rod assemblies to contract into the housing 11 to achieve unlocking.

[0040] Further, in this embodiment, a third groove 73 capable of accommodating the second dialing portion 62 is formed on the side wall of the second dial groove 92. As Figure 2 shown, V-shaped third grooves 73 are provided on the left and right side walls of the second dial groove 92. The second dialing portion 62 is a cubic structure. When the first dial cam 41 rotates, two corners of the second dialing portion 62 enter the third groove 73, and the shapes of the contact portions between the two are the same, enabling smoother linkage between the first dial cam 41 and the locking tongue plate 13. In other embodiments, the shapes of the third groove 73 and the second dialing portion 62 can also be changed to ensure that the shapes of the contact portions between the two are the same, thereby improving the smoothness of the linkage between the first dial cam 41 and the locking tongue plate 13.

[0041] In addition, in this embodiment, the lock further includes a second locking tongue assembly and a second dial cam 42. As Figure 1 and Figure 7 shown, the second locking tongue assembly is slidably disposed in the housing 11. A third dial arm 53 that is linked to the second locking tongue assembly is formed on the second dial cam 42. When the second dial cam 42 rotates, the third dial arm 53 drives the second locking tongue assembly to slide in the second locking hole 112. In a specific embodiment, the second locking tongue assembly is a bevel tongue assembly in a traditional lock, which is linked to the second dial cam 42 and can be controlled by the user to lock and unlock.

[0042] In this embodiment, the second locking tongue assembly includes a latch 14, a pull rod 15, a sliding plate 16, and a first return spring 81. The two ends of the pull rod 15 are respectively connected to the latch 14 and the sliding plate 16. The sliding plate 16 is slidably disposed in the housing 11. One end of the first return spring 81 abuts against the latch 14 or the pull rod 15 or the sliding plate 16, and applies a force towards the outside of the second keyhole 112 to the latch 14 or the pull rod 15 or the sliding plate 16. This lock is used on a door. When closing the door, the door frame can overcome the elastic force of the first return spring 81 and push the latch 14 into the housing 11 to achieve door closing. When the latch 14 is not subject to external force, the first return spring 81 can make the latch 14 slide out of the housing 11 to achieve locking.

[0043] Specifically, in this embodiment, the first return spring 81 is a compression spring, which is sleeved on the pull rod 15. One end abuts against a fixed member in the housing 11, and the other end abuts against the inner side of the latch 14, so that when the latch 14 is not subject to external force, it can be located outside the housing 11 for a long time.

[0044] In this embodiment, a latch lever 17 is rotatably disposed in the housing 11. One end of the latch lever 17 abuts against the side of the sliding plate 16 close to the latch 14, and a stop block 18 for interlocking with the third dial arm 53 is formed on the latch lever 17. When the second dial cam 42 rotates, the third dial arm 53 drives the latch lever 17 to rotate, and then drives the latch 14 to slide towards the inside of the second keyhole 112. Specifically, when the second dial cam 42 rotates Figure 1 clockwise, the third dial arm 53 rotates clockwise and abuts against the stop block 18, which can drive the latch lever 17 to rotate clockwise, and then make the slider slide in the positive direction of the X axis in the figure, so that the latch 14 moves into the housing 11 to achieve unlocking. In other embodiments, the third dial arm 53 on the second dial cam 42 can also directly abut against the sliding plate 16 to directly drive the second locking tongue assembly to slide.

[0045] In this embodiment, a latch lever 17 is provided between the third dial arm 53 and the second locking tongue assembly. When unlocking is not required, there is a certain distance preset between the third dial arm 53 on the second dial cam 42 and the stop block 18. When the latch 14 extends outwards and drives the latch lever 17 to rotate, it will not drive the second dial cam 42 to rotate, which can prevent the second dial cam 42 and the driving structure connected thereto from malfunctioning.

[0046] In this embodiment, the lock further includes a second gear 32, a third gear 33, and a driving motor 35. As Figure 1As shown, the second gear 32 is rotatably disposed in the housing 11 and is connected to the first peach 41 to drive the first peach 41 to rotate; the third gear 33 is rotatably disposed in the housing 11 and is connected to the second peach 42 to drive the second peach 42 to rotate; the output end of the drive motor 35 is transmitted to the second gear 32 and the third gear 33. By controlling the rotation of the drive motor 35, the rotation of the first peach 41 and the second peach 42 can be synchronously controlled. Figure 1 As shown, when the first paddle 41 and the second paddle 42 are controlled to rotate clockwise at the same time, the first lock tongue assembly, the second lock tongue assembly and the top and bottom rod assembly can be slid together into the shell 11 to achieve unlocking; conversely, the first lock tongue assembly and the top and bottom rod assembly can be controlled to slide together out of the shell 11, and the second lock tongue assembly itself can slide out of the shell 11 to achieve locking.

[0047] Furthermore, in this embodiment, a fourth gear 34 is rotatably disposed between the second gear 32 and the third gear 33. The fourth gear 34 meshes with the second gear 32, the third gear 33, and the output end of the drive motor 35. The provision of the fourth gear 34 increases the distance between the second shifting disk 42 and the first shifting disk 41, facilitating the installation of other interlocking structures within the housing 11. Furthermore, with the provision of the fourth gear 34, the drive motor 35 can control the second gear 32 and the third gear 33 to rotate simultaneously clockwise or counterclockwise, facilitating control of the lock's state.

[0048] In this embodiment, the lock is also provided with a structure related to the emergency unlocking function. Figure 3 and Figure 6 The lock also includes a mechanical lock cylinder 21, a latch plate 22, and a lock cylinder plate 23. The mechanical lock cylinder 21 is disposed within the housing 11 and includes a third shifter 43 that can be driven by a mechanical key. The latch plate 22 is rotatably disposed within the housing 11, with one end abutting against a side of the slide 16 near the latch 14. The lock cylinder plate 23 is rotatably disposed within the housing 11, with one end abutting against a shifting arm of the third shifter 43. The lock cylinder plate 23 rotates under the force of the third shifter 43, and its other end drives the latch plate 22 and the second actuating portion 62 to rotate, thereby retracting the second bolt assembly, the top and bottom lever assembly, and the first bolt assembly into a preset position, thereby unlocking the lock. In other words, using a mechanical key, a user can rotate the third shifter 43, which in turn drives the lock cylinder plate 23, which in turn drives the second shifter 42 and the latch plate 22, respectively, retracting the second bolt assembly, the top and bottom lever assembly, and the first bolt assembly into a preset position, thereby unlocking the lock.

[0049] Furthermore, in this embodiment, the lock also includes a latch bolt push rod 24 and an unlocking piece 25. Figure 3 、 Figure 6 、 Figure 8a and Figure 8bThe latch bolt push rod 24 is slidably arranged in the housing 11, with its upper end resting on the lower end of the latch bolt plate 22 and its lower end resting on the third toggle portion 63 on the lock cylinder plate 23. The third toggle portion 63 is formed on the side of the lock cylinder plate 23 and is a raised structure on the side of the lock cylinder plate 23. The unlocking piece 25 is rotatably arranged in the housing 11, and is formed with a fourth toggle portion 64 and a fifth toggle portion 65. The fourth toggle portion 64 is a strip-shaped structure protruding outward from the outer periphery of the unlocking piece 25, and the side of the fourth toggle portion 64 rests on the side of the second toggle portion 62; the fifth toggle portion 65 is a raised mechanism on one surface of the unlocking piece 25. The fifth toggle portion 65 is connected to the second groove 72 on the lock cylinder plate 23. The second groove 72 is a groove body formed on the lock cylinder plate 23, which is sleeved on the fifth toggle portion 65.

[0050] When the lock core shift plate 23 is rotated by the third shift peach 43, the second groove 72 pushes the fifth shifting part 65 to rotate, so that the unlocking piece 25 rotates, and then the fourth shifting part 64 pushes the second shifting part 62 to rotate, so that the first shift peach 41 rotates, thereby completing the unlocking of the sky and earth rod assembly and the first lock tongue assembly; when the lock core shift plate 23 is rotated, the third shifting part 63 pushes the inclined bolt push rod 24 to slide in the positive direction of the Y axis, thereby rotating the inclined bolt shift plate 22, pushing the slide plate 16 to slide in the positive direction of the X axis, thereby completing the unlocking of the second inclined bolt assembly.

[0051] Figure 3 is the internal state of the lock when it is locked in this embodiment, Figure 6 This is the internal state after unlocking by the emergency unlocking function in this embodiment. Figure 3 In this state, the third shifter 43 is rotated clockwise, and the shifting arm thereon abuts against the side of the lock core shift plate 23, which can push the lock core shift plate 23 to rotate clockwise. Accordingly, the third shifting portion 63 abuts against the lower end of the inclined bolt push rod 24, which can push the inclined bolt push rod 24 to slide in the positive direction of the Y axis. The upper end of the inclined bolt push rod 24 pushes the lower end of the inclined bolt shift plate 22 to move in the positive direction of the Y axis as a whole. Since the inclined bolt shift plate 22 is rotatably arranged in the shell 11, the inclined bolt shift plate 22 will rotate clockwise at this time, and its upper end can push the slide plate 16 to move in the positive direction of the X axis, thereby shrinking the inclined bolt 14 into the shell 11, thereby unlocking the second lock bolt assembly. At the same time, the lock core selector plate 23 rotates clockwise, and the second groove 72 thereon can drive the fifth selector portion 65 to rotate clockwise, so that the unlocking piece 25 also rotates clockwise. Correspondingly, the fourth selector portion 64 presses against the side of the second selector portion 62 and rotates clockwise, which will also cause the second selector 42 to rotate clockwise, and then drive the lock tongue plate 13 to move toward the positive direction of the X-axis, the ground rod 20 to move toward the positive direction of the Y-axis, and the sky rod 19 to move toward the negative direction of the Y-axis, thereby unlocking the first lock tongue assembly and the sky rod assembly.

[0052] The provision of the latch bolt push rod 24 allows for an indirect connection between the lock cylinder selector plate 23 and the latch bolt selector plate 22, increasing the distance between them and facilitating the placement of a relatively large number of components within the relatively small space of the housing 11. During operation, the latch bolt push rod 24, driven by the rotation of the lock cylinder selector plate 23, slides in the Y-axis direction, directly rotating the latch bolt selector plate 22. This reduces the size of the lock cylinder selector plate 23 and the latch bolt selector plate 22, compared to directly rotating the latch bolt selector plate 22 via the rotation of the lock cylinder selector plate 23.

[0053] After the unlocking piece 25 is set, the lock core shift plate 23 and the first shifter 41 can be indirectly connected. The reason is that the emergency unlocking function is not triggered frequently. Therefore, when the lock is opened and closed by the driving motor 35, the structure related to the emergency function should remain fixed, which can reduce the resistance during normal opening and closing of the lock, and is conducive to the stable operation of other structures in the lock.

[0054] Specifically, Figure 3 The state shown is the locked state, wherein the latch push rod 24 and the lock cylinder plate 23 are both in the initial position. When the lock is switched on and off by the drive motor 35, as shown in FIG. Figures 1 to 5 As shown, the latch bolt push rod 24 and the lock core plate 23 are both in the initial position and will not move. Only when the mechanical lock core 21 is used for emergency unlocking, the latch bolt push rod 24 and the lock core plate 23 will operate, that is, Figure 6 Status shown.

[0055] Furthermore, if Figure 4 As shown, in this embodiment, the first shifting peach 41 is coaxially arranged with the second gear 32, and a fourth arc-shaped groove 74 is formed on the second gear 32. The side wall of the first shifting peach 41 is formed with a sixth shifting portion 66 that is located in the fourth groove 74. Generally speaking, the first shifting peach 41 and the second gear 32 are connected together to achieve synchronous rotation. However, in this embodiment, due to the existence of an emergency function, the fourth groove 74 is provided. At the same time, the drive motor 35 is configured to: after completing the locking, drive the second gear 32 along the Figure 1 Turn clockwise to the initial position, Figure 4 The state shown. Subsequently, when the drive motor 35 drives the second gear 32 and the third gear 33 to rotate clockwise for unlocking, the fourth groove 74 can directly drive the first shifter 41 to rotate. However, when the mechanical lock cylinder 21 is used for emergency unlocking, although the first shifter 41 rotates, the second gear 32 does not rotate with it, reducing resistance during emergency unlocking and preventing damage to the drive motor 35.

[0056] Further, in this embodiment, a second return spring 82 is further disposed inside the housing 11. One end of the second return spring 82 abuts against the lock core dial plate 23, so that one end of the lock core dial plate 23 abuts against the dial arm of the third dial cam 43. As Figure 3 shown, the second return spring 82 is a torsion spring in this embodiment. One end of the second return spring 82 abuts against the lock core dial plate 23, causing the lock core dial plate 23 to have a tendency to rotate counterclockwise. Thus, when there is no external force, one end of the lock core dial plate 23 abuts against the dial arm of the third dial cam 43. When emergency unlocking is required, the third dial cam 43 can directly drive the lock core dial plate 23 to rotate, and then unlock the lock.

[0057] Further, in this embodiment, as Figure 7 shown, the third gear 33 and the second dial cam 42 are of an integral structure, which facilitates processing and manufacturing while achieving synchronous operation.

[0058] Embodiment 2

[0059] In this embodiment, a lock is disclosed. Compared with Embodiment 1, the top and bottom rod assembly is not provided, and other structures are the same as those in Embodiment 1.

[0060] Specifically, in this embodiment, the lock at least includes a housing 11, a first locking tongue assembly, a first dial cam 41, a second gear 32, a second locking tongue assembly, a second dial cam 42, a third gear 33, and a driving motor 35. For the specific structures and connection relationships of the components, reference can be made to Embodiment 1, which will not be elaborated here. The lock in this embodiment can achieve locking and unlocking with a relatively simple structure, and the internal connection structure of the housing 11 is also relatively simple. When in use, it is not likely to malfunction.

[0061] Embodiment 3

[0062] In this embodiment, a lock is disclosed. Compared with Embodiment 1, the top and bottom rod assembly is not provided, and other structures are the same as those in Embodiment 1.

[0063] Specifically, in this embodiment, the lock at least includes a housing 11, a first locking tongue assembly, a first dial cam 41, a second locking tongue assembly, a second dial cam 42, a mechanical lock core 21, an inclined tongue dial plate 22, and a lock core dial plate 23. For the specific structures and connection relationships of the components, reference can be made to Embodiment 1, which will not be elaborated here. The lock in this embodiment can achieve locking and unlocking with a relatively simple structure, and the internal connection structure of the housing 11 is also relatively simple. When in use, it is not likely to malfunction. At the same time, in an emergency, it can also be unlocked emergently with a mechanical key, having relatively high safety performance.

[0064] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Thus, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A lock, characterized in that, include: The housing has a side wall provided with a first lock hole and a second lock hole; a first locking tongue assembly, slidably disposed in the housing, comprising a first locking tongue and a locking tongue plate connected together, wherein a second shifting groove is formed on the locking tongue plate; a first shift peach rotatably disposed in the housing, formed with a second shift arm linked to the first lock tongue assembly, one end of the second shift arm being formed with a second shift portion located in the second shift groove, so that when the first shift peach rotates forwards and reversely, the second shift portion respectively abuts against two opposite side walls of the second shift groove, driving the first lock tongue to slide in the first lock hole; A second locking tongue assembly includes an oblique tongue and a sliding plate connected thereto and slidably arranged in the housing; A second shift peach is rotatably disposed in the housing and is formed with a third shift arm that is linked to the second lock tongue assembly. When the second shift peach rotates, the third shift arm drives the latch tongue to slide in the second lock hole. A mechanical lock cylinder, disposed in the housing, having a third shifter that can be driven by a mechanical key; An inclined tongue shift plate is rotatably disposed in the housing, with one end abutting against a side of the slide plate close to the inclined tongue; A lock cylinder shift plate is rotatably arranged in the housing, with one end resting on the shift arm of the third shifter; Among them, under the push of the third shifter, the other end of the lock core shift plate can push the inclined tongue shift plate and the second shifting part to rotate, thereby retracting the first lock tongue and the inclined tongue into the shell.

2. The lock according to claim 1, wherein: a second gear rotatably disposed in the housing and connected to the first peach for driving the first peach to rotate; a third gear rotatably disposed in the housing and connected to the second peach for driving the second peach to rotate; The output end of the driving motor is transmitted to the second gear and the third gear.

3. The lock according to claim 2, wherein: The third gear and the second gear shifter are an integrated structure.

4. The lock according to claim 2, wherein: A fourth gear is rotatably provided between the driving motor and the second gear and the third gear. The fourth gear is meshed with the second gear, the third gear and the output end for transmission.

5. The lock according to claim 2, wherein: The first shifting peach is coaxially arranged with the second gear, a third arc-shaped groove is formed on the second gear, and a sixth shifting portion located in the third groove is formed on the side wall of the first shifting peach.

6. The lock according to claim 1, wherein: The second lock tongue assembly also includes a pull rod and a first return spring, the two ends of the pull rod are respectively connected to the inclined tongue and the slide, one end of the first return spring rests on the inclined tongue or the pull rod or the slide, and applies a force toward the outside of the second lock hole to the inclined tongue or the pull rod or the slide.

7. The lock according to claim 1, wherein: A slanting tongue lever is rotatably provided in the housing. One end of the slanting tongue lever abuts against one side of the slide plate close to the slanting tongue, and a stop block interlocked with the third dial arm is formed on the slanting tongue lever. Wherein, when the second dial cam rotates, the third dial arm drives the slanting tongue lever to rotate, and then drives the slanting tongue to slide towards the inside of the second lock hole.

8. The lock according to claim 1, characterized in that, Further comprising: A slanting tongue push rod, which is slidably arranged in the housing, with one end abutting against the other end of the slanting tongue dial plate and the other end abutting against a third dialing part on the lock core dial plate; An unlocking piece, which is rotatably arranged in the housing, and has a fourth dialing part and a fifth dialing part formed thereon. The fourth dialing part abuts against the second dialing part, and the fifth dialing part is connected in a second groove on the lock core dial plate. Wherein When the lock core dial plate rotates, the second groove pushes the fifth dialing part to rotate, then the fourth dialing part pushes the second dialing part to rotate, and the third dialing part pushes the slanting tongue push rod to slide, and then makes the slanting tongue dial plate rotate.

9. The lock according to claim 1, characterized in that, Further comprising: A second return spring, which is arranged in the housing, with one end abutting against the lock core dial plate, so that one end of the lock core dial plate abuts against the dial arm of the third dial cam.

10. The lock according to any one of claims 1-9, characterized in that A third groove capable of accommodating the second dialing part is formed on the side wall of the second dialing groove.

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