Lock

Abstract

The invention relates to the technical field of locks, and discloses a lockset, which comprises a shell, a first lock hole and a third lock hole, the first spring bolt assembly is arranged in the shell in a sliding mode and comprises a first spring bolt and a spring bolt plate which are connected together, and a second shifting groove is formed in the spring bolt plate; the heaven and earth rod assembly comprises a heaven rod, an earth rod and a first gear, the heaven rod and the earth rod are arranged in the shell in a sliding mode, and the first gear is in meshing transmission with the heaven rod and the earth rod; the first poking peach is rotationally arranged in the shell, a first poking arm and a second poking arm are formed on the first poking peach, the first poking arm is linked with the top rod or the ground rod, a second poking part located in the second poking groove is formed at one end of the second poking arm, and when the first poking peach rotates forwards and backwards, the second poking part abuts against the two opposite side walls of the second poking groove respectively; the first lock tongue is driven to slide in the third lock hole, and the first shifting arm drives the top rod and the ground rod to slide in the third lock hole. The lock can drive the heaven and earth rod assembly to slide through a simple structure, and the fault probability is reduced.

Description

Technical Field

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

[0002] Locks with upper and lower rods usually include an oblique tongue assembly, a square tongue assembly and an upper and lower rod assembly. When locking and unlocking, it is necessary to control the oblique tongue assembly and the square tongue assembly at the same time. Among them, the square tongue assembly drives the upper and lower rod assembly to slide through a linkage structure. Or a set of structures for driving the upper and lower rod assembly to slide is separately provided inside the lock, so that a relatively complex linkage structure needs to be provided inside the lock body. These two structural forms for driving the upper and lower rod assembly to slide are relatively complex, often bringing problems such as slow operation response, easy damage of parts and difficult maintenance. In addition, in an intelligent lock, locking and unlocking are realized through a control circuit. However, in order to avoid the situation that unlocking cannot be performed due to 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 and the upper and lower rod assembly at the same time, 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 drive the upper and lower rod assembly to slide with a relatively simple structure and reduce the probability of failure.

[0004] According to an embodiment of the present invention, there is provided a lock, including: a housing, on the side wall of which there are provided a first lock hole and a third lock hole; a first lock tongue assembly, slidably arranged 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; an upper and lower rod assembly, including an upper rod and a lower rod slidably arranged in the housing and a first gear rotatably arranged in the housing, the first gear being located between the upper rod and the lower rod and meshing with the upper rod and the lower rod for transmission; a first dial cam, rotatably arranged in the housing, on which there are formed a first dial arm and a second dial arm, the first dial arm being linked with the upper rod or the lower rod, and one end of the second dial arm is formed with a second dialing part located in the second dial groove. When the first dial cam rotates forward and backward, the second dialing part respectively abuts against two opposite side walls of the second dial groove, driving the first lock tongue to slide in the first lock hole, and the first dial arm drives the upper rod and the lower rod to slide in the third lock hole respectively.

[0005] As an implementation manner, a first dial groove is formed on the ground rod, and a first dialing portion located in the first dial groove is formed at one end of the first dial arm. When the first dial rotates forward and backward, the first dialing portion abuts against two opposite side walls of the first dial groove respectively; or a first dial groove is formed on the top rod, and a first dialing portion located in the first dial groove is formed at one end of the first dial arm. When the first dial rotates forward and backward, the first dialing portion abuts against two opposite side walls of the first dial groove respectively.

[0006] As an implementation manner, a first groove capable of accommodating the first dialing portion is formed on the side wall of the first dial groove.

[0007] As an implementation manner, the lock further includes: a second locking tongue assembly slidably disposed in the housing; a second dial rotatably disposed in the housing, on which a third dial arm linked to the second locking tongue assembly is formed. When the second dial rotates, the third dial arm drives the second locking tongue assembly to slide in the second locking hole.

[0008] As an implementation manner, the second locking tongue assembly includes an inclined tongue, a pull rod, a sliding plate and a first return spring. Two ends of the pull rod are respectively connected to the inclined tongue and the sliding plate. The sliding plate is slidably disposed in the housing. One end of the first return spring abuts against the inclined tongue or the pull rod or the sliding plate, and applies a force towards the outside of the second locking hole to the inclined tongue or the pull rod or the sliding plate; an inclined tongue dial rod is rotatably disposed in the housing. One end of the inclined tongue dial rod abuts against one side of the sliding plate close to the inclined tongue, and a stop block linked to the third dial arm is formed on the inclined tongue dial rod; wherein when the second dial rotates, the third dial arm drives the inclined tongue dial rod to rotate, and then drives the inclined tongue to slide towards the inside of the second locking hole.

[0009] As an implementation manner, the lock further includes: a second gear rotatably disposed in the housing and connected to the first dial to drive the first dial to rotate; a third gear rotatably disposed in the housing and connected to the second dial to drive the second dial to rotate; a driving motor, the output end of which is in transmission connection with the second gear and the third gear.

[0010] As an implementation manner, the lock further includes: a mechanical lock core disposed in the housing, having a third dial that can be driven by a mechanical key; an inclined tongue dial plate rotatably disposed in the housing, one end of which abuts against one side of the sliding plate close to the inclined tongue; a lock core dial plate rotatably disposed in the housing, one end of which abuts against the dial arm of the third dial. Wherein, under the push of the third dial, the other end of the lock core dial plate can push the inclined tongue dial plate and the second dialing portion to rotate, and then the second locking tongue assembly, the top and bottom rod assembly and the first locking tongue assembly are retracted into a preset position.

[0011] As an embodiment, the lock further includes: a latch bolt push rod, which is slidably arranged in the shell, with one end abutting against the other end of the latch bolt plate, and the other end abutting against the third toggle portion on the lock core toggle plate; an unlocking plate, which is rotatably arranged in the shell, and has a fourth toggle portion and a fifth toggle portion formed thereon, the fourth toggle portion abutting against the second toggle portion, and the fifth toggle portion connected to the second groove on the lock core toggle plate; wherein when the lock core toggle 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 first shifting peach is coaxially arranged with the second gear, a fourth arc-shaped groove is formed on the second gear, and a sixth shifting portion located in the fourth groove is formed on the side wall of the first shifting peach.

[0013] As an embodiment, a fourth gear is rotatably arranged between the driving motor and the second gear and the third gear, and the fourth gear is meshed and transmitted with the second gear, the third gear and the output end.

[0014] According to the above description and practice, the sky and earth rod assembly in the lock of the present invention is directly driven by the first peach, and the first peach can be selected from the peach that drives any lock tongue in the traditional lock. It only needs to mesh a first gear between the sky rod and the ground rod to realize the control of the operation of the sky and earth rod assembly. Compared with the traditional lock, it does not significantly increase the number of parts in the housing, can drive the sky and earth rod assembly to slide with a relatively simple structure, and is relatively stable during operation and not prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of a lock 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 FIG. 1 is a schematic diagram of the internal partial structure of a lock involved in an embodiment of the present invention, and FIG. Figure 1 In comparison, the structure of the first locking tongue assembly is shown.

[0017] Figure 3 FIG. 1 is a schematic diagram of the internal partial structure of a lock involved in an embodiment of the present invention, and FIG. Figure 2 In comparison, the structure associated with the emergency unlocking function is also shown.

[0018] Figure 4 It is a schematic diagram of the internal structure of the lock involved in the first embodiment of the present invention when it is in the locked state and the second gear is reset.

[0019] Figure 5 The figure is a schematic diagram of the internal structure of a lock after the lock is unlocked by a driving motor according to an embodiment of the present invention.

[0020] Figure 6 It is a schematic diagram of the internal partial structure of the lock involved in one embodiment of the present invention after the lock is unlocked by the mechanical lock core.

[0021] Figure 7 The figure is a schematic diagram of the connection between the latch bolt lever and the third gear in a lock 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, the unlocking piece and the first peach at two different viewing angles.

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

[0024] The reference numerals in the figure are:

[0025] 11. Shell; 12. First lock tongue; 13. Lock tongue plate; 14. Oblique tongue; 15. Pull rod; 16. Slide plate; 17. Oblique tongue lever; 18. Stopper; 19. Sky rod; 20. Ground rod; 21. Mechanical lock cylinder; 22. Oblique tongue lever plate; 23. Lock cylinder lever plate; 24. Oblique tongue push rod; 25. Unlocking piece; 31. First gear; 32. Second gear; 33. Third gear; 34. Fourth gear; 35. Driving motor; 41. First shifting peach; 42. Second shifting peach; 43. Third shifting peach; 51 , the first lever arm; 52, the second lever arm; 53, the third lever arm; 61, the first toggle part; 62, the second toggle part; 63, the third toggle part; 64, the fourth toggle part; 65, the fifth toggle part; 66, the sixth toggle part; 71, the first groove; 72, the second groove; 73, the third groove; 74, the fourth groove; 81, the first return spring; 82, the second return spring; 91, the first lever groove; 92, the second lever groove; 111, the first locking hole; 112, the second locking hole; 113, the third locking 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 implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and 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 attached drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus the repeated description thereof will be omitted. It should be noted that in the present disclosure, the terms "comprising", "configured with", and "arranged on" are used to mean an open inclusion, that is, in addition to the listed elements / components / etc., there may be other elements / components / etc.; the terms "first", "second", etc. are only used as labels and are not a limitation on the quantity or order of their objects; the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present invention.

[0028] Unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. 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 9 shown, in this embodiment, a lock is disclosed. The lock includes a housing 11, a top and bottom rod assembly, and a first pick 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-shell of the housing 11 is shown in each attached drawing to show 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 can allow the top and bottom rod assembly and other lock tongues to slide therein.

[0031] The top and bottom rod assembly includes a top rod 19 and a bottom 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 top rod 19 and the bottom rod 20 and meshes with the top rod 19 and the bottom rod 20 for transmission. As Figure 1As shown in the figure, two strip holes are respectively provided on the top rod 19 and the bottom rod 20 along the sliding direction. A limit rivet is provided in the strip hole and is fixed on the inner wall of the housing 11. The top rod 19 and the bottom rod 20 can only slide along the strip holes and will not displace in other directions. At the positions of the top rod 19 and the bottom rod 20 close to the first gear 31, racks are formed. Through the meshing transmission between the racks and the first gear 31, when the top rod 19 slides, the first gear 31 is driven to rotate, and then the bottom rod 20 can be driven to slide; conversely, when the bottom rod 20 slides, the first gear 31 is driven to rotate, and then the top rod 19 can be driven to slide.

[0032] The first dial cam 41 is rotatably arranged in the housing 11, and a first dial arm 51 which is linked with the top rod 19 or the bottom rod 20 is formed thereon. When the first dial cam 41 rotates, the first dial arm 51 drives the top rod 19 and the bottom rod 20 to slide in the third lock hole 113 respectively. As Figure 1 shown in the figure, in this embodiment, the first dial arm 51 is linked with the bottom rod 20. When the first dial cam 41 rotates clockwise, the first dial arm 51 drives the bottom 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 bottom rod 20 contract towards the inside of the housing 11 together to achieve unlocking. After that, when the first dial cam 41 is rotated counterclockwise, the first dial arm 51 drives the bottom 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 bottom 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 dial cam drives the square tongue plate to move, and then the square tongue plate drives the top rod 19 and the bottom rod 20 to move. In this structural form, the square tongue plate, as a part of the square tongue assembly, is prone to failure during use after adding the additional function of driving the top and bottom rod assembly, resulting in the inoperability of the square tongue and the top and bottom rod assembly. And 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 become complicated, and it is also prone to failure during the use process along with the vibration of the lock.

[0034] The top and bottom rod assembly in this embodiment is directly driven by the first dial cam 41. The first dial cam 41 can be selected as the dial cam for driving any lock tongue in traditional locks. Only by meshing a first gear 31 between the top rod 19 and the bottom rod 20 can the operation of the top and bottom rod assembly 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 dial groove 91 is formed on the ground rod 20, and a first dialing portion 61 located within the first dial groove 91 is formed at one end of the first dial arm 51. When the first dial cam 41 rotates forward and backward, the first dialing portion 61 abuts against two opposite side walls of the first dial groove 91 respectively, and then drives the ground rod 20 to slide up and down in the Y-axis direction. As Figure 1 shown, when the first dial cam 41 rotates clockwise, the first dialing portion 61 abuts against the upper side wall of the first dial groove 91, driving the ground rod 20 to slide in the positive Y-axis direction, then driving the first gear 31 to rotate counterclockwise, and then driving the top rod 19 to slide in the negative Y-axis direction, so that the top rod 19 and the ground rod 20 contract into the interior of the housing 11 together to achieve unlocking; when the first dial cam 41 rotates counterclockwise, the first dialing portion 61 abuts against the lower side wall of the first dial groove 91, driving the ground rod 20 to slide in the negative Y-axis direction, then driving the first gear 31 to rotate clockwise, and then driving the top rod 19 to slide in the positive Y-axis direction, so that the top rod 19 and the ground rod 20 extend out of the housing 11 together to achieve locking. In another embodiment, the first dial groove 91 can also be provided on the top rod 19, and through the linkage of the first dial arm 51 and the top rod 19, the first gear 31 and the ground rod 20 are then driven to move.

[0036] Further, in this embodiment, a first groove 71 capable of accommodating the first dialing portion 61 is formed on the side wall of the first dial groove 91. As Figure 1 shown, V-shaped first grooves 71 are provided on the upper and lower side walls of the first dial groove 91, and the first dialing portion 61 is of a cubic structure. When the first dial cam 41 rotates, two corner portions of the first dialing portion 61 enter the first grooves 71, and the shapes of the contact portions between the two are the same, which can more smoothly achieve the linkage between the first dial cam 41 and the ground rod 20. In other embodiments, the shapes of the first groove 71 and the first dialing portion 61 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 ground rod 20.

[0037] Further, in this embodiment, the length direction of the first dial groove 91 is perpendicular to the sliding direction of the ground rod 20, that is, the first dial groove 91 is arranged along Figure 1 the X-axis direction in . In this structural form, when the first dial cam 41 rotates, the direction of the force exerted by the first dial arm 51 on the ground rod 20 is the same as or close to the sliding direction of the ground rod 20, which can effectively reduce the resistance during the operation of the first dial cam 41 and ensure that the lock is more smooth and less prone to failure during use.

[0038] As Figure 2As shown, in this embodiment, the lock further includes a first latch assembly slidably disposed in the housing 11. A second dial arm 52 that is interlocked with the first latch assembly is further formed on the first dial cam 41. When the first dial cam 41 rotates, the second dial arm 52 drives the first latch assembly to slide in the first latch hole 111. In a specific embodiment, the first latch assembly is a square latch assembly in a traditional lock, which is interlocked with the first dial cam 41 and can be controlled by the user to lock and unlock the door.

[0039] In this embodiment, the first latch assembly includes a first latch 12 and a latch plate 13. The first latch 12 and the latch plate 13 are connected together. The latch plate 13 is slidably disposed in the housing 11, and a second dial groove 92 is formed on the latch 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 latch 12 to slide in the first latch 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 latch plate 13 to slide in the negative X-axis direction, so that the first latch 12 slides out of the first latch 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 latch plate 13 to slide in the positive X-axis direction, so that the first latch 12 slides into the housing 11 from the first latch hole 111 to achieve unlocking. Thus, when the first dial cam 41 rotates counterclockwise, it can simultaneously control the first latch assembly and the top and bottom rods assembly to extend out of the housing 11 to achieve locking. When the first dial cam 41 rotates clockwise, it can simultaneously control the first latch assembly and the top and bottom rods assembly to contract into the housing 11 to achieve unlocking.

[0040] Further, in this embodiment, a third groove 73 that can accommodate 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 cube 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, which can more smoothly achieve the interlock between the first dial cam 41 and the latch 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 interlock between the first dial cam 41 and the latch plate 13.

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

[0042] In this embodiment, the second locking tongue assembly includes a bevel tongue 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 bevel tongue 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 bevel tongue 14 or the pull rod 15 or the sliding plate 16 and applies a force toward the outside of the second locking hole 112 to the bevel tongue 14 or the pull rod 15 or the sliding plate 16. When 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 bevel tongue 14 into the housing 11 to achieve door closing. When the bevel tongue 14 is not subject to external force, the first return spring 81 can make the bevel tongue 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 part in the housing 11, and the other end abuts against the inner side of the bevel tongue 14, so that when the bevel tongue 14 is not subject to external force, it can be in the outside of the housing 11 for a long time.

[0044] In this embodiment, a bevel tongue dialing rod 17 is rotatably disposed in the housing 11. One end of the bevel tongue dialing rod 17 abuts against the side of the sliding plate 16 close to the bevel tongue 14. A stop block 18 that is linked to the third dialing arm 53 is formed on the bevel tongue dialing rod 17. When the second dialing cam 42 rotates, the third dialing arm 53 drives the bevel tongue dialing rod 17 to rotate, and then drives the bevel tongue 14 to slide toward the inside of the second locking hole 112. Specifically, when the second dialing cam 42 rotates clockwise Figure 1 in the figure, the third dialing arm 53 rotates clockwise and abuts against the stop block 18, which can drive the bevel tongue dialing rod 17 to rotate clockwise, and then make the slider slide in the positive direction of the X axis in the figure, so that the bevel tongue 14 moves into the housing 11 to achieve unlocking. In other embodiments, the third dialing arm 53 on the second dialing 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 bevel tongue dialing rod 17 is provided between the third dialing arm 53 and the second locking tongue assembly. When unlocking is not required, there is a preset distance between the third dialing arm 53 on the second dialing cam 42 and the stop block 18. When the bevel tongue 14 extends outwards and drives the bevel tongue dialing rod 17 to rotate, it will not drive the second dialing cam 42 to rotate, which can prevent the second dialing 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 drive motor 35. Figure 1 As shown, the second gear 32 is rotatably disposed in the housing 11, and is connected to the first shifting peach 41 to drive the first shifting peach 41 to rotate; the third gear 33 is rotatably disposed in the housing 11, and is connected to the second shifting peach 42 to drive the second shifting peach 42 to rotate; the output end of the driving motor 35 is transmitted to the second gear 32 and the third gear 33. By controlling the rotation of the driving motor 35, the rotation of the first shifting peach 41 and the second shifting peach 42 can be synchronously controlled. Figure 1 As shown, when the first latch 41 and the second latch 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 arranged between the second gear 32 and the third gear 33, and the fourth gear 34 is meshed and driven with the second gear 32, the third gear 33 and the output end of the driving motor 35. By arranging the fourth gear 34, the distance between the second shifting peach 42 and the first shifting peach 41 can be increased, which is convenient for arranging other linkage structures in the housing 11; in addition, after the fourth gear 34 is arranged, the driving motor 35 can control the second gear 32 and the third gear 33 to rotate clockwise or counterclockwise at the same time, which is convenient for controlling the state of the lock.

[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 core 21, a latch plate 22 and a lock core plate 23. The mechanical lock core 21 is arranged in the housing 11 and has a third shifting peach 43 that can be driven by a mechanical key; the latch plate 22 is rotatably arranged in the housing 11, and one end of the latch plate 22 is against a side of the slide plate 16 close to the latch 14; the lock core plate 23 is rotatably arranged in the housing 11, and one end of the latch plate 23 is against the lever arm of the third shifting peach 43. The lock core plate 23 rotates under the push of the third shifting peach 43, and the other end can push the latch plate 22 and the second shifting part 62 to rotate, and then the second bolt assembly, the sky and earth rod assembly and the first bolt assembly are retracted into the preset position to achieve unlocking. In other words, the user can rotate the third shifting peach 43 with the help of the mechanical key, drive the lock core plate 23 to rotate, and then drive the second shifting peach 42 and the latch plate 22 to rotate, respectively, so that the second bolt assembly, the sky and earth rod assembly and the first bolt assembly are retracted into the preset position to achieve unlocking.

[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 8b , the oblique tongue push rod 24 is slidably arranged in the housing 11, with the upper end abutting against the lower end of the oblique tongue plate 22, and the lower end abutting against the third toggle portion 63 on the lock core plate 23. The third toggle portion 63 is formed on the side of the lock core plate 23, and is a protruding structure on the side of the lock core plate 23. The unlocking piece 25 is rotatably arranged in the housing 11, and a fourth toggle portion 64 and a fifth toggle portion 65 are formed thereon. The fourth toggle portion 64 is a strip-shaped structure protruding outward from the outer circumference of the unlocking piece 25, and the side of the fourth toggle portion 64 abuts against the side of the second toggle portion 62; the fifth toggle portion 65 is a protruding mechanism on one surface of the unlocking piece 25. The fifth toggle portion 65 is connected to the second groove 72 on the lock core plate 23. The second groove 72 is a groove body formed on the lock core plate 23, which is sleeved on the fifth toggle portion 65.

[0050] When the lock core plate 23 is rotated by the third shifting 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 shifting peach 41 rotates, and the unlocking of the sky and earth rod assembly and the first lock tongue assembly is completed; when the lock core plate 23 is rotated, the third shifting part 63 pushes the oblique tongue push rod 24 to slide in the positive direction of the Y axis, and then the oblique tongue plate 22 is rotated, pushing the slide plate 16 to slide in the positive direction of the X axis, and the unlocking of the second oblique tongue assembly is completed.

[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 is achieved through the emergency unlocking function in this embodiment. Figure 3 In this state, the third shift peach 43 is rotated clockwise, and the shift 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. Correspondingly, the third shifting portion 63 abuts against the lower end of the inclined tongue push rod 24, which can push the inclined tongue push rod 24 to slide in the positive direction of the Y axis, and the upper end of the inclined tongue push rod 24 pushes the lower end of the inclined tongue shift plate 22 to move in the positive direction of the Y axis as a whole. Since the inclined tongue shift plate 22 is rotatably arranged in the shell 11, the inclined tongue 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 tongue 14 into the shell 11, thereby unlocking the second lock tongue assembly. At the same time, the lock core shift plate 23 rotates clockwise, and the second groove 72 thereon can drive the fifth shift part 65 to rotate clockwise, so that the unlocking piece 25 also rotates clockwise. Correspondingly, the fourth shift part 64 presses against the side of the second shift part 62 and rotates clockwise, which will also cause the second shift peach 42 to rotate clockwise, and then drive the lock tongue plate 13 to move in the positive direction of the X-axis, the ground rod 20 to move in the positive direction of the Y-axis, and the sky rod 19 to move in the negative direction of the Y-axis, thereby unlocking the first lock tongue assembly and the sky and earth rod assembly.

[0052] After the inclined bolt push rod 24 is provided, the lock core plate 23 and the inclined bolt plate 22 can be indirectly connected, and the distance between the lock core plate 23 and the inclined bolt plate 22 can be increased, so that relatively more parts can be placed in a smaller space of the housing 11. When the lock is in operation, the inclined bolt push rod 24 slides in the Y-axis direction by virtue of the rotation of the lock core plate 23, and then directly rotates the inclined bolt plate 22. Compared with directly driving the inclined bolt plate 22 to rotate by the rotation of the lock core plate 23, the size of the lock core plate 23 and the inclined bolt plate 22 can be reduced.

[0053] After setting the unlocking piece 25, the lock core 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 unlocking and closing the lock by driving the 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 opened and closed 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, a fourth arc-shaped groove 74 is formed on the second gear 32, and a sixth shifting portion 66 is formed on the side wall of the first shifting peach 41 and 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 Rotate clockwise to the initial position, Figure 4 The state shown. Subsequently, when the second gear 32 and the third gear 33 are driven by the driving motor 35 to rotate clockwise to unlock, the fourth groove 74 can directly drive the first shifting peach 41 to rotate. However, when emergency unlocking is performed by the mechanical lock cylinder 21, although the first shifting peach 41 rotates, the second gear 32 does not rotate therewith, which reduces the resistance during emergency unlocking and does not cause damage to the driving motor 35.

[0056] Further, in this embodiment, a second return spring 82 is also disposed within the housing 11, one end of which abuts against the lock core dial plate 23, causing one end of the lock core dial plate 23 to abut 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 it abuts against the lock core dial plate 23, causing the lock core dial plate 23 to have a tendency to rotate counterclockwise. Consequently, when there is no external force, one end of it can abut 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 unlocking can be performed.

[0057] Further, in this embodiment, as Figure 7 shown, the third gear 33 and the second dial cam 42 are of an integral structure. While achieving synchronous operation, it is also convenient for processing and manufacturing.

[0058] Embodiment Two

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

[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 each component, reference can be made to Embodiment One, which will not be elaborated here. The lock in this embodiment can achieve unlocking and locking with a relatively simple structure, and the internal connection structure of the housing 11 is also relatively simple. During use, it is not likely to malfunction.

[0061] Embodiment Three

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

[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 each component, reference can be made to Embodiment One, which will not be elaborated here. The lock in this embodiment can achieve unlocking and locking with a relatively simple structure, and the internal connection structure of the housing 11 is also relatively simple. During use, it is not likely to malfunction. Meanwhile, in an emergency, it can also be unlocked emergently with a mechanical key, having a 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, from any point of view, 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. Therefore, all changes falling 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, Comprising: A housing with a first lock hole and a third lock hole provided on its side wall; A first locking tongue assembly slidably disposed in the housing, including a first locking tongue and a locking tongue plate connected together, and a second dial groove is formed on the locking tongue plate; A top and bottom rod assembly, including a top rod and a bottom rod slidably disposed in the housing and a first gear rotatably disposed in the housing, the first gear being located between the top rod and the bottom rod and meshing with the top rod and the bottom rod for driving; A first dial cam rotatably disposed in the housing, having a first dial arm and a second dial arm formed thereon, the first dial arm being linked with the top rod or the bottom rod, one end of the second dial arm having a second dialing portion located in the second dial groove, when the first dial cam rotates forward and backward, the second dialing portion respectively abuts against two opposite side walls of the second dial groove, driving the first locking tongue to slide in the first lock hole, and the first dial arm driving the top rod and the bottom rod to slide in the third lock hole respectively.

2. The lock according to claim 1, wherein A first dial groove is formed on the bottom rod, and a first dialing portion located in the first dial groove is formed at one end of the first dial arm, when the first dial cam rotates forward and backward, the first dialing portion respectively abuts against two opposite side walls of the first dial groove; or A first dial groove is formed on the top rod, and a first dialing portion located in the first dial groove is formed at one end of the first dial arm, when the first dial cam rotates forward and backward, the first dialing portion respectively abuts against two opposite side walls of the first dial groove.

3. The lock according to claim 2, wherein A first groove capable of accommodating the first dialing portion is formed on the side wall of the first dial groove.

4. The lock according to claim 1, characterized in that, Further comprising: A second locking tongue assembly slidably disposed in the housing; A second dial cam rotatably disposed in the housing, having a third dial arm linked with the second locking tongue assembly, when the second dial cam rotates, the third dial arm drives the second locking tongue assembly to slide in a second lock hole on the side wall of the housing.

5. The lock according to claim 4, wherein The second locking tongue assembly includes an inclined tongue, a pull rod, a slide plate and a first return spring, two ends of the pull rod are respectively connected with the inclined tongue and the slide plate, the slide plate is slidably disposed in the housing, one end of the first return spring abuts against the inclined tongue or the pull rod or the slide plate and applies a force towards the outside of the second lock hole to the inclined tongue or the pull rod or the slide plate; An inclined tongue dial rod is rotatably disposed in the housing, one end of the inclined tongue dial rod abuts against one side of the slide plate close to the inclined tongue, and a stop block linked with the third dial arm is formed on the inclined tongue dial rod; wherein When the second dial cam rotates, the third dial arm drives the inclined tongue dial rod to rotate, and then drives the inclined tongue to slide towards the inside of the second lock hole.

6. The lock according to claim 5, characterized in that, Further comprising: A second gear rotatably disposed in the housing and connected with the first dial cam for driving the first dial cam to rotate; A third gear rotatably disposed in the housing and connected with the second dial cam for driving the second dial cam to rotate; A driving motor, the output end of which is in transmission connection with the second gear and the third gear.

7. The lock according to claim 6, characterized in that, Further comprising: A mechanical lock cylinder, disposed in the housing, having a third shifter that can be driven by a mechanical key; An inclined tongue plate is rotatably disposed in the housing, with one end abutting against a side of the slide plate close to the inclined tongue; The lock core shift plate is rotatably arranged in the shell, and one end of the lock core shift plate is against the shift arm of the third shift peach. The other end of the lock core shift plate can push the oblique tongue shift plate and the second shifting part to rotate under the push of the third shift peach, thereby retracting the second lock tongue assembly, the sky and earth rod assembly and the first lock tongue assembly into a preset position.

8. The lock according to claim 7, characterized in that, Also includes: A latch bolt push rod is slidably disposed in the housing, one end of which abuts against the other end of the latch bolt shift plate, and the other end of which abuts against the third shifting portion on the lock cylinder shift plate; The unlocking piece is rotatably arranged in the housing, and is formed with a fourth toggle part and a fifth toggle part, wherein the fourth toggle part abuts against the second toggle part, and the fifth toggle part is connected to the second groove on the lock core plate; wherein When the lock core plate rotates, the second groove pushes the fifth toggle part to rotate, and then the fourth toggle part pushes the second toggle part to rotate, and the third toggle part pushes the oblique tongue push rod to slide, and then the oblique tongue plate rotates.

9. The lock according to claim 7, characterized in that: The first shifting peach is coaxially arranged with the second gear, a fourth arc-shaped groove is formed on the second gear, and a sixth shifting part located in the fourth groove is formed on the side wall of the first shifting peach.

10. The lock according to any one of claims 6 to 9, characterized in that: A fourth gear is rotatably arranged between the driving motor and the second gear and the third gear, and the fourth gear is meshed and transmitted with the second gear, the third gear and the output end.

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