Lock

Abstract

This utility model relates to the field of lock technology and discloses a lock comprising: a housing with a third keyhole on its side wall; 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 and bottom rods and engaging with them for transmission; and a first lever rotatably disposed in the housing, on which a first lever arm is formed for linkage with the top or bottom rod. When the first lever rotates, the first lever arm drives the top and bottom rods to slide in the third keyhole respectively. This lock can drive the top and bottom rod assembly to slide with a relatively simple structure, reducing the probability of failure.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a lock. Background Technology

[0002] Locks typically consist of a latch assembly, a square bolt assembly, and a top and bottom bolt assembly. Opening and closing the lock requires simultaneous control of the latch and square bolt assemblies, with the square bolt assembly driving the top and bottom bolt assemblies via a linkage mechanism. Alternatively, a separate mechanism may be included within the lock body to drive the top and bottom bolt assemblies, resulting in a more complex internal linkage structure. These two complex mechanisms often lead to slow response times, easy component damage, and difficult maintenance. Furthermore, while smart locks use control circuits for opening and closing, a mechanical unlocking mechanism is retained within the lock body to prevent unlocking failures due to circuit malfunctions. This mechanical unlocking mechanism, requiring simultaneous control of two sets of latch assemblies and the top and bottom bolt assemblies, also suffers from structural complexity and susceptibility to malfunction. Utility Model Content

[0003] This invention was made to solve the above-mentioned technical problems. One of its objectives is to provide a lock that can drive the top and bottom rod assembly to slide with a relatively simple structure, thereby reducing the probability of failure.

[0004] According to one embodiment of the present invention, a lock is provided, comprising: a housing with a third lock hole on the side wall; 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 engaging with and transmitting power to the top rod and the bottom rod; and a first lever rotatably disposed in the housing, on which a first lever arm is formed to move in conjunction with the top rod or the bottom rod, wherein when the first lever rotates, the first lever arm drives the top rod and the bottom rod to slide in the third lock hole respectively.

[0005] In one embodiment, a first groove is formed on the ground pole, and a first actuating part is formed at one end of the first actuating arm within the first groove. When the first actuating arm rotates forward and backward, the first actuating part abuts against two opposite side walls of the first groove, respectively. Alternatively, a first groove is formed on the top pole, and a first actuating part is formed at one end of the first actuating arm within the first groove. When the first actuating arm rotates forward and backward, the first actuating part abuts against two opposite side walls of the first groove, respectively.

[0006] In one embodiment, a first groove capable of accommodating the first actuating part is formed on the side wall of the first actuating groove.

[0007] In one embodiment, the lock further includes: a first latch assembly slidably disposed in the housing; wherein a second lever arm is formed on the first latch, which is connected to the first latch assembly, and when the first latch rotates, the second lever arm drives the first latch assembly to slide in the first lock hole on the side wall of the housing.

[0008] In one embodiment, the lock further includes: a second latch assembly slidably disposed in the housing; and a second latch rotatably disposed in the housing, on which a third lever arm is formed to be connected with the second latch assembly. When the second latch rotatably rotates, the third lever arm drives the second latch assembly to slide in a second lock hole on the side wall of the housing.

[0009] In one embodiment, the second latch assembly includes a latch, a pull rod, a sliding plate, and a first return spring. The two ends of the pull rod are connected to the latch and the sliding plate, respectively. The sliding plate is slidably disposed within the housing. One end of the first return spring abuts against the latch, pull rod, or sliding plate, applying a force toward the outside of the second lock hole. A latch lever is rotatably disposed within the housing. One end of the latch lever abuts against the side of the sliding plate near the latch. A stop block connected to the third lever arm is formed on the latch lever. When the second lever rotates, the third lever arm drives the latch lever to rotate, thereby driving the latch to slide inward toward the inside of the second lock hole.

[0010] In one embodiment, the lock further includes: a second gear, rotatably disposed within the housing and connected to the first mortise, for driving the first mortise to rotate; a third gear, rotatably disposed within the housing and connected to the second mortise, for driving the second mortise to rotate; and a drive motor, the output end of which drives the second gear and the third gear.

[0011] In one embodiment, the lock further includes: a mechanical lock cylinder disposed in the housing, having a third latch that can be driven by a mechanical key; a latch lever rotatably disposed in the housing, one end of which abuts against the side of the sliding plate near the latch; and a lock cylinder lever rotatably disposed in the housing, one end of which abuts against the lever arm of the third latch, wherein, under the push of the third latch, the other end of the lock cylinder lever can push the latch lever and the second lever part to rotate, thereby causing the second latch assembly, the top and bottom lever assembly and the first latch assembly to retract into a preset position.

[0012] In one embodiment, the lock further includes: a latch push rod, slidably disposed in the housing, one end abutting against the other end of the latch lever, and the other end abutting against a third actuating part on the lock cylinder lever; an unlocking plate, rotatably disposed in the housing, having a fourth actuating part and a fifth actuating part formed thereon, the fourth actuating part abutting against the second actuating part, and the fifth actuating part connected to a second groove on the lock cylinder lever; wherein when the lock cylinder lever rotates, the second groove pushes the fifth actuating part to rotate, then the fourth actuating part pushes the second actuating part to rotate, the third actuating part pushes the latch push rod to slide, thereby causing the latch lever to rotate.

[0013] In one embodiment, the first pusher is coaxially arranged with the second gear, the second gear has an arc-shaped fourth groove, and the side wall of the first pusher has a sixth actuating part located in the fourth groove.

[0014] Based on the above description and practical application, it can be seen that in the lock of this utility model, the top and bottom rod assemblies are directly driven by a first pawl. This first pawl can be any pawl used in traditional locks to drive either bolt. Only a first gear needs to be engaged between the top and bottom rods to control the operation of the top and bottom rod assemblies. Compared to traditional locks, this design does not significantly increase the number of parts inside the housing, allows for a simpler structure to drive the top and bottom rod assemblies, and provides greater stability during operation, reducing the likelihood of malfunctions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the lock involved in one embodiment of the present utility model. 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 latch assembly is omitted.

[0016] Figure 2 This is a schematic diagram of the internal partial structure of the lock involved in one embodiment of the present utility model. Figure 1 In contrast, the structure of the first locking tongue assembly is shown.

[0017] Figure 3 This is a schematic diagram of the internal partial structure of the lock involved in one embodiment of the present utility model. Figure 2 In comparison, the structure related to the emergency unlocking function was also shown.

[0018] Figure 4 This is a schematic diagram of the internal structure of the lock after the second gear is reset in the locked state, as described in Embodiment 1 of this utility model.

[0019] Figure 5 This is a schematic diagram of the internal structure of the lock after it is unlocked by a drive motor, according to one embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of the internal structure of the lock after it has been unlocked by the mechanical lock cylinder, according to one embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram showing the connection between the latch lever and the third gear in a lock according to one embodiment of the present invention.

[0022] Figure 8a and Figure 8b for Figure 6 A schematic diagram showing the connection of the lock cylinder lever, unlocking plate, and first lever from two different perspectives.

[0023] Figure 9 for Figure 1 A magnified schematic diagram of a portion of the structure.

[0024] The attached figures are labeled as follows:

[0025] 11. Housing; 12. First latch; 13. Latch plate; 14. Slant latch; 15. Pull rod; 16. Slide plate; 17. Slant latch lever; 18. Stop block; 19. Top rod; 20. Bottom rod; 21. Mechanical lock cylinder; 22. Slant latch lever; 23. Lock cylinder lever; 24. Slant latch push rod; 25. Unlocking plate; 31. First gear; 32. Second gear; 33. Third gear; 34. Fourth gear; 35. Drive motor; 41. First latch; 42. Second latch; 43. Third latch; 51. 51. First lever arm; 52. Second lever arm; 53. Third lever arm; 61. First actuating part; 62. Second actuating part; 63. Third actuating part; 64. Fourth actuating part; 65. Fifth actuating part; 66. Sixth actuating part; 71. First groove; 72. Second groove; 73. Third groove; 74. Fourth groove; 81. First return spring; 82. Second return spring; 91. First slot; 92. Second slot; 111. First locking hole; 112. Second locking hole; 113. Third locking hole. Detailed Implementation

[0026] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, 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 this disclosure will be more comprehensive and complete, and will fully convey the concept of 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] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] like Figures 1 to 8b As shown, in this embodiment, a lock is disclosed, which includes a housing 11, a top and bottom bolt assembly, and a first latch 41. The housing 11 can be formed by two parts that are fastened together, forming a space in the middle to accommodate other components. Only one half of the housing 11 is shown in the various figures to illustrate its internal structure. The sides of the housing 11 are provided with a first lock hole 111, a second lock hole 112, and a third lock hole 113, which allow the top and bottom bolt assembly and other latches to slide within them.

[0031] The top and bottom rod assembly includes a top rod 19 and a bottom rod 20 slidably disposed in the housing 11, and a first gear 31 rotatably disposed in the housing 11. The first gear 31 is located between the top rod 19 and the bottom rod 20 and meshes with and drives the top rod 19 and the bottom rod 20. Figure 1As shown, two slots are provided on the top rod 19 and the bottom rod 20 along the sliding direction, and limiting rivets are provided in the slots and fixed to the inner wall of the housing 11. The top rod 19 and the bottom rod 20 can only slide along the slots and will not produce displacement in other directions. A rack is formed near the first gear 31 on the top rod 19 and the bottom rod 20. The rack meshes with the first gear 31 to drive the transmission. When the top rod 19 slides, it drives the first gear 31 to rotate, which in turn drives the bottom rod 20 to slide; conversely, when the bottom rod 20 slides, it drives the first gear 31 to rotate, which in turn drives the top rod 19 to slide.

[0032] The first lever 41 is rotatably mounted in the housing 11, and a first lever arm 51 is formed on it, which is connected to the top rod 19 or the bottom rod 20. When the first lever 41 rotates, the first lever arm 51 drives the top rod 19 and the bottom rod 20 to slide in the third locking hole 113 respectively. Figure 1 As shown, in this embodiment, the first lever arm 51 is linked to the ground rod 20. When the first lever 41 rotates clockwise, the first lever arm 51 drives the ground rod 20 to slide in the positive direction of the Y-axis, which in turn drives the first gear 31 to rotate counterclockwise, which in turn drives the top rod 19 to slide in the negative direction of the Y-axis. This causes the top rod 19 and the ground rod 20 to retract together into the housing 11, thus unlocking. Afterwards, rotating the first lever 41 counterclockwise causes the first lever arm 51 to drive the ground rod 20 to slide in the negative direction of the Y-axis, which in turn drives the first gear 31 to rotate clockwise, which in turn drives the top rod 19 to slide in the positive direction of the Y-axis. This causes the top rod 19 and the ground rod 20 to extend together outward from the housing 11, thus locking.

[0033] In traditional locks, when the top and bottom rod assemblies are driven by the square latch plate in the latch assembly, the latch plate is first moved by the chuck, and then the square latch plate moves the top rod 19 and the bottom rod 20. In this structure, the square latch plate, as part of the square latch assembly, is prone to malfunction after adding the additional function of driving the top and bottom rod assemblies, rendering the square latch and top and bottom rod assemblies unusable. While setting a separate mechanism for driving the top and bottom rod assemblies within the housing 11 would complicate the internal structure of the housing 11, it would also be prone to malfunction due to lock vibrations during use.

[0034] In this embodiment, the top and bottom lever assembly is directly driven by the first latch 41. The first latch 41 can be any latch used in traditional locks to drive the operation of any bolt. Only a first gear 31 needs to be engaged between the top lever 19 and the bottom lever 20 to control the operation of the top and bottom lever assembly. Compared to traditional locks, this method does not significantly increase the number of parts inside the housing 11, allows for a simpler structure to drive the top and bottom lever assembly, and provides greater stability and less susceptibility to malfunctions during operation.

[0035] Specifically, in this embodiment, a first groove 91 is formed on the ground rod 20, and a first actuating part 61 is formed at one end of the first actuating arm 51 within the first groove 91. When the first actuating arm 41 rotates forward and backward, the first actuating part 61 abuts against two opposite sidewalls of the first groove 91, thereby driving the ground rod 20 to slide up and down along the Y-axis. Figure 1 As shown, when the first lever 41 rotates clockwise, the first actuating part 61 abuts against the upper sidewall of the first lever groove 91, causing the ground rod 20 to slide in the positive direction of the Y-axis, which in turn causes the first gear 31 to rotate counterclockwise, and then causes 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 together retract into the housing 11, thereby unlocking; when the first lever 41 rotates counterclockwise, the first actuating part 61 abuts against the lower sidewall of the first lever groove 91, causing the ground rod 20 to slide in the negative direction of the Y-axis, which in turn causes the first gear 31 to rotate clockwise, and then causes 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 together extend outward from the housing 11, thereby locking. In another embodiment, the first lever groove 91 can also be set on the top rod 19, and through the linkage between the first lever arm 51 and the top rod 19, the first gear 31 and the ground rod 20 can be moved.

[0036] Furthermore, in this embodiment, a first groove 71 capable of accommodating the first actuating part 61 is formed on the side wall of the first actuating groove 91. For example... Figure 1 As shown, the upper and lower side walls of the first locator 91 are provided with V-shaped first grooves 71, and the first actuating part 61 has a cubic structure. When the first locator 41 rotates, the two corners of the first actuating part 61 enter the first groove 71. The contact parts of the two parts have the same shape, which can more smoothly realize the linkage between the first locator 41 and the ground rod 20. In other embodiments, the shapes of the first groove 71 and the first actuating part 61 can also be changed to ensure that the contact parts of the two parts have the same shape, thereby improving the smoothness of the linkage between the first locator 41 and the ground rod 20.

[0037] Furthermore, in this embodiment, the length direction of the first groove 91 is perpendicular to the sliding direction of the ground rod 20, that is, the length direction of the first groove 91 is perpendicular to the sliding direction of the ground rod 20. Figure 1 The X-axis direction is set. In this structural form, when the first pusher 41 rotates, the direction of the force applied by the first pusher arm 51 to the ground rod 20 is the same as or close to the sliding direction of the ground rod 20. This can effectively reduce the resistance when the first pusher 41 rotates, ensuring that the lock is used more smoothly and is less prone to failure.

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

[0039] In this embodiment, the first latch assembly includes a first latch 12 and a latch plate 13, which are connected together. The latch plate 13 is slidably disposed within the housing 11, and a second groove 92 is formed on the latch plate 13. One end of the second lever 52 has a second actuating part 62 located within the second groove 92. When the first lever 41 rotates forward and backward, the second actuating part 62 abuts against two opposite sidewalls of the second groove 92, driving the first latch 12 to slide in the first lock hole 111, thereby unlocking and locking. Figure 2 As shown, when the first latch 41 rotates counterclockwise, the second actuating part 62 abuts against the left side wall of the second latch groove 92, pushing the latch plate 13 to slide in the negative X-axis direction, causing the first latch 12 to slide out of the first lock hole 111, thus locking. When the first latch 41 rotates clockwise, the second actuating part 62 abuts against the right side wall of the second latch groove 92, pushing the latch plate 13 to slide in the positive X-axis direction, causing the first latch 12 to slide from the first lock hole 111 into the housing 11, thus unlocking. Therefore, when the first latch 41 rotates counterclockwise, it can simultaneously control the first latch assembly and the top and bottom lever assembly to extend out of the housing 11 to lock, and when the first latch 41 rotates clockwise, it can simultaneously control the first latch assembly and the top and bottom lever assembly to retract into the housing 11 to unlock.

[0040] Furthermore, in this embodiment, a third groove 73 capable of accommodating the second actuating part 62 is formed on the side wall of the second actuating groove 92. For example... Figure 2 As shown, V-shaped third grooves 73 are provided on the left and right side walls of the second actuating groove 92. The second actuating part 62 has a cubic structure. When the first actuating pin 41 rotates, the two corners of the second actuating part 62 enter the third groove 73. The contact parts of the two parts have the same shape, which can more smoothly realize the linkage between the first actuating pin 41 and the locking tongue plate 13. In other embodiments, the shapes of the third groove 73 and the second actuating part 62 can also be changed to ensure that the contact parts of the two parts have the same shape, thereby improving the smoothness of the linkage between the first actuating pin 41 and the locking tongue plate 13.

[0041] Furthermore, in this embodiment, the lock also includes a second latch assembly and a second latch 42, such as Figure 1 and Figure 7As shown, the second latch assembly is slidably disposed in the housing 11. A third lever arm 53, which is connected to the second latch assembly, is formed on the second latch 42. When the second latch 42 rotates, the third lever arm 53 drives the second latch assembly to slide in the second lock hole 112. In a specific embodiment, the second latch assembly is a conventional latch assembly, which is connected to the second latch 42 and can be controlled by the user to lock and unlock.

[0042] In this embodiment, the second latch assembly includes a latch 14, a pull rod 15, a sliding plate 16, and a first return spring 81. Both ends of the pull rod 15 are connected to the latch 14 and the sliding plate 16, respectively. The sliding plate 16 is slidably disposed within the housing 11. One end of the first return spring 81 abuts against the latch 14, the pull rod 15, or the sliding plate 16, applying a force towards the outside of the second lock hole 112. When this lock is used on a door, the door frame can overcome the elastic force of the first return spring 81, pushing the latch 14 into the housing 11 to close the door. When the latch 14 is not subjected to external force, the first return spring 81 allows the latch 14 to slide out of the housing 11, thus locking the door.

[0043] Specifically, in this embodiment, the first reset spring 81 is a compression spring, which is sleeved on the pull rod 15, with one end abutting against the fixing member in the housing 11 and the other end abutting against the inner side of the oblique tongue 14, so that the oblique tongue 14 can remain outside the housing 11 for a long time when it is not subjected to external force.

[0044] In this embodiment, a rotatable latch lever 17 is rotatably provided in the housing 11. One end of the latch lever 17 abuts against the side of the sliding plate 16 near the latch 14. A stop block 18 is formed on the latch lever 17, which is linked to the third lever arm 53. When the second latch 42 rotates, the third lever arm 53 drives the latch lever 17 to rotate, which in turn drives the latch 14 to slide inward toward the second locking hole 112. Specifically, the second latch 42 along... Figure 1 When rotated clockwise, the third lever 53 rotates clockwise and abuts against the stop block 18, which drives the latch lever 17 to rotate clockwise, thereby causing the slider to slide in the positive direction of the X-axis in the figure, and moving the latch 14 into the housing 11 to unlock. In other embodiments, the third lever 53 on the second latch 42 can also directly abut against the slide plate 16 to directly drive the second latch assembly to slide.

[0045] In this embodiment, a slanted tongue lever 17 is provided between the third lever arm 53 and the second locking tongue assembly. When unlocking is not required, there is a certain distance between the third lever arm 53 on the second locking pin 42 and the stop block 18. The slanted tongue 14 extends outward to drive the slanted tongue lever 17 to rotate, but will not subsequently drive the second locking pin 42 to rotate, thus preventing the second locking pin 42 and its connected drive structure from malfunctioning.

[0046] In this embodiment, the lock also 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 within the housing 11 and is connected to the first chuck 41 to drive the first chuck 41 to rotate; the third gear 33 is rotatably disposed within the housing 11 and is connected to the second chuck 42 to drive the second chuck 42 to rotate; the output end of the drive motor 35 transmits power to the second gear 32 and the third gear 33. By controlling the rotation of the drive motor 35, the rotation of the first chuck 41 and the second chuck 42 can be controlled synchronously. Figure 1 As shown, when the first latch 41 and the second latch 42 are rotated clockwise simultaneously, the first latch assembly, the second latch assembly, and the top and bottom lever assembly can slide together into the housing 11 to unlock; conversely, the first latch assembly and the top and bottom lever assembly can slide together out of the housing 11, and the second latch assembly can slide itself out of the housing 11 to lock.

[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 for transmission. By providing the fourth gear 34, the distance between the second shifter 42 and the first shifter 41 can be increased, facilitating the installation of other linkage structures within the housing 11. In addition, with the fourth gear 34 provided, the drive motor 35 can control the second gear 32 and the third gear 33 to rotate clockwise or counterclockwise simultaneously, facilitating the control of the lock's state.

[0048] In this embodiment, the lock also includes a structure related to an emergency unlocking function. Please refer to... Figure 3 and Figure 6 The lock also includes a mechanical lock cylinder 21, a latch lever 22, and a lock cylinder lever 23. The mechanical lock cylinder 21 is housed in the housing 11 and has a third latch 43 that can be driven by a mechanical key. The latch lever 22 is rotatably disposed in the housing 11, with one end abutting against the side of the slide plate 16 near the latch 14. The lock cylinder lever 23 is rotatably disposed in the housing 11, with one end abutting against the lever arm of the third latch 43. The lock cylinder lever 23 rotates under the push of the third latch 43, and its other end can push the latch lever 22 and the second lever part 62 to rotate, thereby causing the second latch assembly, the top and bottom rod assembly, and the first latch assembly to retract into a preset position, thus unlocking the lock. In other words, the user, using a mechanical key, can rotate the third latch 43, causing the lock cylinder lever 23 to rotate, which in turn causes the second latch 42 and the latch lever 22 to rotate, respectively retracting the second latch assembly, the top and bottom rod assembly, and the first latch assembly into preset positions, thus unlocking the lock.

[0049] Furthermore, in this embodiment, the lock also includes a latch rod 24 and an unlocking plate 25. Please refer to... Figure 3, Figure 6 , Figure 8a and Figure 8b The oblique tongue push rod 24 is slidably disposed in the housing 11, with its upper end abutting against the lower end of the oblique tongue lever 22 and its lower end abutting against the third actuating part 63 on the lock cylinder lever 23. The third actuating part 63 is formed on the side of the lock cylinder lever 23 and is a protruding structure on the side of the lock cylinder lever 23. The unlocking plate 25 is rotatably disposed in the housing 11, and has a fourth actuating part 64 and a fifth actuating part 65 formed thereon. The fourth actuating part 64 is a strip-shaped structure protruding outward from the outer periphery of the unlocking plate 25, and the side of the fourth actuating part 64 abuts against the side of the second actuating part 62; the fifth actuating part 65 is a protruding mechanism on one surface of the unlocking plate 25. The fifth actuating part 65 is connected in the second groove 72 on the lock cylinder lever 23. The second groove 72 is a groove formed on the lock cylinder lever 23, which fits onto the fifth actuating part 65.

[0050] When the lock cylinder lever 23 is rotated by the third pusher 43, the second groove 72 pushes the fifth actuating part 65 to rotate, causing the unlocking piece 25 to rotate. Then, the fourth actuating part 64 pushes the second actuating part 62 to rotate, causing the first pusher 41 to rotate, thus unlocking the top and bottom rod assembly and the first bolt assembly. When the lock cylinder lever 23 rotates, the third actuating part 63 pushes the latch push rod 24 to slide in the positive Y-axis direction, which in turn causes the latch lever 22 to rotate, pushing the slide plate 16 to slide in the positive X-axis direction, thus unlocking the second latch assembly.

[0051] Figure 3 This describes the internal state of the lock when it is closed in this embodiment. Figure 6 In this embodiment, the internal state after unlocking is achieved through an emergency unlocking function. Figure 3 In this state, rotating the third lever 43 clockwise causes its lever arm to abut against the side of the lock cylinder lever 23, which in turn pushes the lock cylinder lever 23 to rotate clockwise. Correspondingly, the third lever part 63 abuts against the lower end of the tongue push rod 24, which pushes the tongue push rod 24 to slide in the positive Y-axis direction. The upper end of the tongue push rod 24 pushes the lower end of the tongue lever 22 to move in the positive Y-axis direction. Since the tongue lever 22 is rotatably located in the housing 11, it will rotate clockwise at this time. Its upper end can push the slide plate 16 to move in the positive X-axis direction, thereby causing the tongue 14 to retract into the housing 11, thus unlocking the second lock tongue assembly. At the same time, the lock cylinder lever 23 rotates clockwise, and the second groove 72 on it can drive the fifth lever 65 to rotate clockwise, causing the unlocking plate 25 to rotate clockwise as well. Correspondingly, the fourth lever 64 abuts against the side of the second lever 62 and rotates clockwise, which will also cause the second lever 42 to rotate clockwise, thereby driving 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 top rod 19 to move in the negative direction of the Y-axis, thereby unlocking the first lock tongue assembly and the top and bottom rod assemblies.

[0052] With the latch push rod 24 installed, the lock cylinder plate 23 and the latch plate 22 can be indirectly connected, increasing the distance between them and allowing for the placement of a relatively large number of parts within the smaller housing 11. During lock operation, the latch push rod 24 slides along the Y-axis due to the rotation of the lock cylinder plate 23, directly causing the latch plate 22 to rotate. Compared to directly rotating the latch plate 22 through the rotation of the lock cylinder plate 23, this reduces the size of both the lock cylinder plate 23 and the latch plate 22.

[0053] After setting the unlocking plate 25, the lock cylinder plate 23 and the first pin 41 can be indirectly connected. The reason for this is that the emergency unlocking function is not frequently triggered. Therefore, when the lock is opened and closed by the drive motor 35, the structure related to the emergency function should remain fixed. This can reduce the resistance when the lock is opened and closed normally, which is conducive to the stable operation of other structures in the lock.

[0054] Specifically, Figure 3 The state shown is the locked state, where the latch rod 24 and the lock cylinder lever 23 are both in their initial positions. When the lock is opened or closed via the drive motor 35, as... Figures 1 to 5 As shown, the latch rod 24 and the lock cylinder derailleur 23 are both in their initial positions and will not move. The latch rod 24 and the lock cylinder derailleur 23 will only operate during emergency unlocking via the mechanical lock cylinder 21. Figure 6 The state shown.

[0055] Furthermore, such as Figure 4 As shown, in this embodiment, the first pawl 41 and the second gear 32 are coaxially arranged. An arc-shaped fourth groove 74 is formed on the second gear 32, and a sixth actuating part 66 is formed on the side wall of the first pawl 41 within the fourth groove 74. Normally, the first pawl 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 aforementioned fourth groove 74 is provided. Simultaneously, the drive motor 35 is configured to drive the second gear 32 along... Figure 1 Rotate clockwise back to the initial position, that is Figure 4 As shown in the diagram. Subsequently, when unlocking is performed by driving the second gear 32 and the third gear 33 clockwise via the drive motor 35, the fourth groove 74 can directly drive the first pusher 41 to rotate. However, during emergency unlocking via the mechanical lock cylinder 21, although the first pusher 41 rotates, the second gear 32 will not rotate accordingly, reducing the resistance during emergency unlocking and preventing damage to the drive motor 35.

[0056] Furthermore, in this embodiment, a second return spring 82 is also provided inside the housing 11, one end of which abuts against the lock cylinder deflector 23, so that one end of the lock cylinder deflector 23 abuts against the deflector arm of the third deflector 43. Figure 3 As shown, the second return spring 82 in this embodiment is a torsion spring, one end of which abuts against the lock cylinder deflector 23, causing the lock cylinder deflector 23 to have a counterclockwise rotation tendency. Then, when no external force is applied, one end abuts against the lever arm of the third deflector 43. In case of emergency unlocking, the third deflector 43 can directly drive the lock cylinder deflector 23 to rotate, thereby unlocking the lock.

[0057] Furthermore, in this embodiment, as Figure 7 As shown, the third gear 33 and the second gear 42 are an integral structure, which not only enables synchronous operation but also facilitates their processing and manufacturing.

[0058] Example 2

[0059] In this embodiment, a lock is disclosed that, compared with Embodiment 1, does not have a top and bottom rod assembly, but the other structures are the same as in Embodiment 1.

[0060] Specifically, in this embodiment, the lock includes at least a housing 11, a first latch assembly, a first latch 41, a second gear 32, a second latch assembly, a second latch 42, a third gear 33, and a drive motor 35. The specific structure and connection relationships of each component are described in Embodiment 1 and will not be repeated 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, making it less prone to malfunctions during use.

[0061] Example 3

[0062] In this embodiment, a lock is disclosed that, compared with Embodiment 1, does not have a top and bottom rod assembly, but the other structures are the same as in Embodiment 1.

[0063] Specifically, in this embodiment, the lock includes at least a housing 11, a first bolt assembly, a first latch 41, a second bolt assembly, a second latch 42, a mechanical lock cylinder 21, a latch lever 22, and a lock cylinder lever 23. The specific structure and connection relationships of each component are detailed in Embodiment 1 and will not be repeated 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, making it less prone to malfunctions during use. Furthermore, in emergency situations, it can be unlocked using a mechanical key, providing high security.

[0064] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lock, characterized in that, include: The housing has a third locking hole on its side wall; The top and bottom rod assembly includes a top rod and a bottom rod that are slidably disposed in the housing, and a first gear that is rotatably disposed in the housing. The first gear is located between the top rod and the bottom rod and meshes with and drives the top rod and the bottom rod. The first lever is rotatably disposed in the housing, and a first lever arm is formed thereon to be connected with the top rod or the bottom rod. When the first lever rotates, the first lever arm drives the top rod and the bottom rod to slide in the third lock hole respectively. The second locking tongue assembly is slidably disposed within the housing; The second latch is rotatably disposed in the housing, and a third latch arm is formed thereon, which is connected to the second latch assembly. When the second latch rotates, the third latch arm drives the second latch assembly to slide in the second lock hole on the side wall of the housing. The ground pole has a first groove, and one end of the first lever arm has a first actuating part located within the first groove. When the first lever arm rotates forward and backward, the first actuating part abuts against two opposite sidewalls of the first groove; or A first groove is formed on the top rod, and a first actuating part is formed at one end of the first actuating arm within the first groove. When the first actuating arm rotates forward and backward, the first actuating part abuts against two opposite side walls of the first groove.

2. The lock as described in claim 1, characterized in that, A first groove is formed on the side wall of the first toggle groove to accommodate the first toggle part.

3. The lock as described in claim 1, characterized in that, Also includes: The first locking tongue assembly is slidably disposed within the housing; in The first latch also has a second lever arm that is connected to the first locking tongue assembly. When the first latch rotates, the second lever arm drives the first locking tongue assembly to slide in the first locking hole on the side wall of the housing.

4. The lock as described in claim 3, characterized in that, The second latch assembly includes a latch, a pull rod, a sliding plate, and a first return spring. The two ends of the pull rod are respectively connected to the latch and the sliding plate. The sliding plate is slidably disposed in the housing. One end of the first return spring abuts against the latch, the pull rod, or the sliding plate and applies a force toward the outside of the second lock hole to the latch, the pull rod, or the sliding plate. The housing is rotatably provided with a slanted latch lever, one end of which abuts against the side of the sliding plate near the slanted latch. A stop block is formed on the slanted latch lever that is connected to the third lever arm. When the second lever rotates, the third lever arm drives the slanted latch lever to rotate, which in turn drives the slanted latch to slide inward toward the second lock hole.

5. The lock as described in claim 4, characterized in that, Also includes: The second gear is rotatably disposed inside the housing and connected to the first mortise, and is used to drive the first mortise to rotate; The third gear is rotatably disposed inside the housing and connected to the second mortise, and is used to drive the second mortise to rotate; The drive motor's output end is connected to the second and third gears for transmission.

6. The lock as described in claim 5, characterized in that, Also includes: A mechanical lock cylinder, disposed in the housing, has a third key that can be driven by a mechanical key; A slanted tongue lever is rotatably disposed in the housing, with one end abutting against the side of the sliding plate near the slanted tongue; The lock cylinder lever is rotatably disposed in the housing, with one end abutting against the lever arm of the third lever. Under the push of the third lever, the other end of the lock cylinder lever can push the inclined tongue lever and the second lever part to rotate, thereby causing the second lock tongue assembly, the top and bottom lever assembly and the first lock tongue assembly to retract into a preset position.

7. The lock as described in claim 6, characterized in that, Also includes: The oblique tongue push rod is slidably disposed in the housing, with one end abutting against the other end of the oblique tongue deflector plate and the other end abutting against the third actuating part of the lock cylinder deflector plate; The unlocking plate is rotatably disposed within the housing, and has a fourth actuating part and a fifth actuating part formed thereon. The fourth actuating part abuts against the second actuating part, and the fifth actuating part is connected to the second groove in the lock cylinder plate; wherein When the lock cylinder lever rotates, the second groove pushes the fifth actuating part to rotate, then the fourth actuating part pushes the second actuating part to rotate, and the third actuating part pushes the tongue push rod to slide, thereby causing the tongue lever to rotate.

8. The lock as described in claim 6, characterized in that, The first pusher is coaxially arranged with the second gear, the second gear has an arc-shaped fourth groove, and the side wall of the first pusher has a sixth actuating part located in the fourth groove.

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