Lock rod driving mechanism and lock

Abstract

The utility model discloses a lock rod driving mechanism and a lock, and belongs to the technical field of locks. The lock rod driving mechanism comprises a lock rod knob, a lock rod sleeve and a transmission assembly, and the lock rod sleeve is connected with a lock rod of the lock; the transmission assembly comprises a first transmission part, a second transmission part and a transmission shaft, the lock rod knob is in transmission connection with the first end of the transmission shaft through the first transmission part, the lock rod sleeve is in transmission connection with the second end of the transmission shaft through the second transmission part, and the first transmission part can rotate around a first rotating axis relative to the transmission shaft. The second transmission part can rotate around a second rotating axis relative to the lock rod sleeve, the first transmission part and / or the second transmission part can rotate around a third rotating axis relative to the transmission shaft, the first rotating axis is parallel to the second rotating axis, and orthographic projections of the first rotating axis and the third rotating axis in the axial direction of the transmission shaft intersect. The first rotating axis, the second rotating axis and the third rotating axis are all perpendicular to the rotating axis of the lock rod knob. According to the scheme, the lock rod knob can synchronously move along with the handle.

Description

Technical Field

[0001] This application belongs to the field of lock technology, specifically relating to a lock rod drive mechanism and a lock. Background Technology

[0002] A lock typically includes a lock base and a handle fixedly connected to the lock base. The handle is equipped with a lock bar knob. Turning the lock bar knob can drive the lock bar of the lock to rotate, so that the lock bar controls the retraction or extension of the lock tongue, thereby realizing the mechanical unlocking or mechanical locking of the lock.

[0003] In related technologies, because the gap between the handle and the door frame is small, to prevent users from pinching their fingers when opening and closing the door, the user can adjust the installation position of the handle according to the opening direction of the door to increase the gap between the handle and the door frame. However, after adjusting the installation position of the handle, since the position of the locking rod remains unchanged, the position of the locking rod knob also remains unchanged. This results in the locking rod knob not moving synchronously with the handle, and the gap between the locking rod knob and the door frame remains small, making it inconvenient for the user to hold and operate the locking rod knob.

[0004] Therefore, the relevant technology has the defect that the locking lever knob cannot move synchronously with the handle. Utility Model Content

[0005] The purpose of this application is to provide a locking lever drive mechanism and lock, which can solve the problem in related technologies that the locking lever knob cannot move synchronously with the handle.

[0006] In a first aspect, embodiments of this application provide a locking lever driving mechanism, the locking lever driving mechanism comprising:

[0007] A locking lever knob is rotatably mounted on the handle of a lock.

[0008] A locking rod sleeve is rotatably mounted on the lock seat of the lock and is used to connect with the locking rod of the lock.

[0009] The transmission assembly includes a first transmission member, a second transmission member, and a transmission shaft. The locking lever knob is connected to a first end of the transmission shaft via the first transmission member, and the locking lever sleeve is connected to a second end of the transmission shaft via the second transmission member. The first transmission member is rotatable relative to the transmission shaft about a first rotation axis, and the second transmission member is rotatable relative to the locking lever sleeve about a second rotation axis. At least one of the first and second transmission members can also rotate relative to the transmission shaft about a third rotation axis. The first rotation axis is parallel to the second rotation axis, and the orthogonal projections of the first and third rotation axes on the axial direction of the transmission shaft intersect. Furthermore, the first, second, and third rotation axes are all perpendicular to the rotation axis of the locking lever knob.

[0010] Secondly, this application also provides a lock, which includes a lock base, a handle, a lock rod, and the aforementioned lock rod driving mechanism. The lock rod is rotatably disposed within the lock base, the handle is connected to the lock base, the lock rod knob of the lock rod driving mechanism is disposed on the handle, and the lock rod sleeve of the lock rod driving mechanism is disposed on the lock base and connected to the lock rod.

[0011] In this embodiment, the locking lever knob is connected to the first end of the transmission shaft via a first transmission member, and the locking lever sleeve is connected to the second end of the transmission shaft via a second transmission member. The first transmission member can rotate relative to the transmission shaft around a first rotation axis, and the second transmission member can rotate relative to the locking lever sleeve around a second rotation axis. The first and second rotation axes can be parallel. Thus, when the locking lever knob is deflected, it can drive the transmission shaft to deflect relative to the locking lever sleeve. Furthermore, since at least one of the first and second transmission members can also rotate relative to the transmission shaft around a third rotation axis, and the third rotation axis intersects the orthogonal projection of the first and second rotation axes onto the axial direction of the transmission shaft, the locking lever knob and the transmission shaft can rotate relative to each other within a certain angle range, and / or the locking lever sleeve and the transmission shaft can rotate relative to each other within a certain angle range, while maintaining continuous power transmission. This ensures that the locking lever knob can still drive the locking lever sleeve to rotate after a positional shift, thereby driving the locking lever to rotate, to achieve mechanical locking or mechanical unlocking.

[0012] This design ensures that the locking lever knob maintains a transmission connection with the locking lever sleeve regardless of its offset position. This allows the locking lever knob to be eccentrically positioned relative to the locking lever sleeve, enabling it to adapt to the handle's installation position and move synchronously with the handle. This, in turn, increases the gap between the locking lever knob and the door frame, making it easier for the user to grip and operate the locking lever knob. Attached Figure Description

[0013] Figure 1 This is one of the front views of the locking lever drive mechanism disclosed in the embodiments of this application;

[0014] Figure 2 This is a second front view of the locking lever drive mechanism disclosed in the embodiments of this application;

[0015] Figure 3 This is an exploded view of the transmission assembly disclosed in the embodiments of this application (hiding the first transmission gear, the third transmission gear, and the third connecting member).

[0016] Figure 4 This is one of the perspective views of the transmission assembly disclosed in the embodiments of this application (with the first transmission gear and the third transmission gear hidden).

[0017] Figure 5This is a second perspective view of the transmission assembly disclosed in the embodiments of this application (all transmission gears are hidden);

[0018] Figure 6 This is a front view of the transmission assembly disclosed in the embodiments of this application (all transmission gears are hidden);

[0019] Figure 7 This is a perspective view of the first transmission component disclosed in the embodiments of this application;

[0020] Figure 8 This is a perspective view of the second transmission component disclosed in the embodiments of this application;

[0021] Figure 9 This is one of the cross-sectional views of the lock disclosed in the embodiments of this application;

[0022] Figure 10 This is a schematic diagram of the handle being installed in the center, as disclosed in the embodiments of this application;

[0023] Figure 11 This is a second cross-sectional view of the lock disclosed in the embodiments of this application (with the handle centered).

[0024] Figure 12 This is a schematic diagram of the handle being installed to the left, as disclosed in the embodiments of this application;

[0025] Figure 13 This is the third cross-sectional view of the lock disclosed in the embodiments of this application (when the handle is deflected to the left);

[0026] Figure 14 This is a schematic diagram of the handle being installed to the right, as disclosed in the embodiments of this application;

[0027] Figure 15 This is the fourth cross-sectional view of the lock disclosed in the embodiments of this application (when the handle is deflected to the right).

[0028] Explanation of reference numerals in the attached figures:

[0029] 100-Lock base; 110-Connecting part; 200-Handle; 300-Lock bar drive mechanism; 310-Lock bar knob;

[0030] 320 - Locking rod sleeve; 330 - Transmission assembly; 331 - First transmission component; 3311 - First connecting component;

[0031] 3312 - First rotating shaft; 3313 - First protrusion; 332 - Second transmission component; 3321 - Second rotating shaft;

[0032] 3322 - Third rotating shaft; 3323 - Connecting block; 3324 - Second protrusion; 333 - Drive shaft;

[0033] 334 - First bushing; 3341 - First connecting lug; 335 - Second bushing; 3351 - Second connecting lug;

[0034] 336 - Second connecting member; 3361 - Third connecting lug; 337 - First transmission gear;

[0035] 338 - Second transmission gear; 339 - Third transmission gear; 340 - Fourth transmission gear;

[0036] 400 - Reset elastic element; 500 - Door frame; 600 - Door body. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0038] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0039] The locking lever drive mechanism and lock provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0040] refer to Figures 1-15 The lock lever drive mechanism 300 provided in this application embodiment may include a lock lever knob 310, a lock lever sleeve 320 and a transmission assembly 330.

[0041] The locking lever knob 310 can be rotatably mounted on the handle 200 of the lock, and the locking lever sleeve 320 can be rotatably mounted on the lock seat 100 of the lock and can be connected to the locking lever of the lock so as to drive the locking lever to rotate.

[0042] The transmission assembly 330 may include a first transmission member 331, a second transmission member 332, and a transmission shaft 333. The locking lever knob 310 can be connected to the first end of the transmission shaft 333 via the first transmission member 331. The locking lever sleeve 320 can be connected to the second end of the transmission shaft 333 via the second transmission member 332. The first transmission member 331 can rotate relative to the transmission shaft 333 about a first rotation axis. The second transmission member 332 can rotate relative to the locking lever sleeve 320 about a second rotation axis. At least one of the first transmission member 331 and the second transmission member 332 can also rotate relative to the transmission shaft 333 about a third rotation axis. The first rotation axis and the second rotation axis can be parallel. The orthogonal projections of the first rotation axis and the third rotation axis on the axial direction of the transmission shaft 333 intersect. Furthermore, the first rotation axis, the second rotation axis, and the third rotation axis are all perpendicular to the rotation axis of the locking lever knob 310.

[0043] Since the first transmission member 331 can rotate relative to the transmission shaft 333 and the second transmission member 332 can rotate relative to the locking rod sleeve 320, when the locking rod knob 310 is offset, it can drive the transmission shaft 333 to deflect relative to the locking rod sleeve 320. Furthermore, since at least one of the first transmission member 331 and the second transmission member 332 can also rotate relative to the transmission shaft 333 around the third rotation axis, and the third rotation axis intersects the orthogonal projection of the first rotation axis and the second rotation axis on the axial direction of the transmission shaft 333, the locking rod knob 310 and the transmission shaft 333 can rotate relative to each other within a certain angle range and / or the locking rod sleeve 320 and the transmission shaft 333 can rotate relative to each other within a certain angle range, while maintaining continuous power transmission. This ensures that the locking rod knob 310 can still drive the locking rod sleeve 320 to rotate after the position is offset, thereby driving the locking rod to rotate, so as to realize mechanical locking or mechanical unlocking.

[0044] With this configuration, the locking lever knob 310 can maintain a transmission connection with the locking lever sleeve 320 regardless of its offset position. This allows the locking lever knob 310 to be eccentrically positioned relative to the locking lever sleeve 320, thus enabling it to adapt to the installation position of the handle 200 and move synchronously with it. This increases the gap between the locking lever knob 310 and the door frame 500, making it easier for the user to hold and operate the locking lever knob 310.

[0045] In an optional embodiment of this application, the transmission assembly 330 may further include a first transmission gear 337 and a second transmission gear 338. The first transmission gear 337 may be coaxially connected to the lock lever knob 310, and the second transmission gear 338 may be connected to the first transmission member 331, and the second transmission gear 338 may mesh with the first transmission gear 337. This arrangement, on the one hand, helps to ensure the stability of the transmission through gear transmission, and on the other hand, when the handle 200 is in the middle position, the lock lever knob 310 and the transmission shaft 333 can be misaligned, thereby providing installation space for other components of the lock.

[0046] In other embodiments, the transmission assembly 330 may also exclude the first transmission gear 337 and the second transmission gear 338, and the locking lever knob 310 may be directly connected to the first transmission member 331.

[0047] In an optional embodiment, the transmission assembly 330 may further include a third transmission gear 339 and a fourth transmission gear 340. The third transmission gear 339 may be coaxially connected to the lock rod sleeve 320, and the fourth transmission gear 340 may be connected to the second transmission member 332, meshing with the third transmission gear 339. This arrangement allows the lock rod sleeve 320 to be misaligned with the transmission shaft 333, thereby providing installation space for other components of the lock.

[0048] Of course, the transmission assembly 330 may also exclude the third transmission gear 339 and the fourth transmission gear 340, and the locking sleeve 320 may be directly connected to the second transmission component 332.

[0049] In an optional embodiment, the transmission ratio between the second transmission gear 338 and the first transmission gear 337 can be greater than 1. The module of the second transmission gear 338 is the same as the module of the fourth transmission gear 340, and the number of teeth of the second transmission gear 338 is greater than the number of teeth of the fourth transmission gear 340. The module and number of teeth of the third transmission gear 339 are the same as those of the fourth transmission gear 340, respectively. This arrangement, on the one hand, reduces effort when operating the locking lever knob 310, and on the other hand, allows the diameters of the third transmission gear 339 and the fourth transmission gear 340 to be smaller than the diameter of the second transmission gear 338, thereby reducing the space occupied by the third transmission gear 339 and the fourth transmission gear 340. Here, the module of the second transmission gear 338 can be the same as the module of the first transmission gear 337, and the number of teeth of the second transmission gear 338 can be greater than the number of teeth of the first transmission gear 337.

[0050] Of course, the transmission ratio between the second transmission gear 338 and the first transmission gear 337 can also be less than 1 or equal to 1. For example, the number of teeth of the second transmission gear 338 is less than or equal to the number of teeth of the first transmission gear 337.

[0051] Alternatively, the module and number of teeth of the third transmission gear 339 can be the same as those of the fourth transmission gear 340, and the module and number of teeth of the fourth transmission gear 340 can be the same as those of the second transmission gear 338.

[0052] Optionally, the transmission ratio between the second transmission gear 338 and the first transmission gear 337 can be 2. This configuration reduces the force required to operate the locking lever knob 310 by half. For example, applying a force of 1 N·m to the locking lever knob 310 can transmit a force of 2 N·m to the locking lever sleeve 320 via the transmission assembly 330. Of course, the transmission ratio between the second transmission gear 338 and the first transmission gear 337 can also be greater than 2.

[0053] In this embodiment, the first transmission gear 337 can have 12 teeth, the second transmission gear 338 can have 24 teeth, and the third transmission gear 339 and the fourth transmission gear 340 can both have 12 teeth. Of course, the number of teeth of the first transmission gear 337 can also be different from 12, the number of teeth of the second transmission gear 338 can also be different from 24, and the number of teeth of the third transmission gear 339 and the fourth transmission gear 340 can also be different from 12; the specific number can be set according to needs.

[0054] In an optional embodiment of this application, the first transmission member 331 may include a first connector 3311 and a first rotating shaft 3312. The first connector 3311 may be connected to the locking lever knob 310. Specifically, the first connector 3311 may be connected to the second transmission gear 338. The first connector 3311 may be rotatably connected to the transmission shaft 333 via the first rotating shaft 3312. The first rotation axis is the axis of the first rotating shaft 3312.

[0055] The second transmission component 332 may include a second rotating shaft 3321 and a third rotating shaft 3322. The second rotating shaft 3321 is rotatably connected to the locking rod sleeve 320, and the third rotating shaft 3322 is rotatably connected to the transmission shaft 333. The second rotating shaft 3321 and the third rotating shaft 3322 intersect and are connected. The second rotation axis is the axis of the second rotating shaft 3321, and the third rotation axis is the axis of the third rotating shaft 3322. With this configuration, since the second rotating shaft 3321 and the third rotating shaft 3322 intersect and are connected, the second transmission component 332 can form a cross-shaped universal joint structure, which allows the transmission shaft 333 to transmit power at different angles, thereby transmitting the power of the locking rod knob 310 to the locking rod sleeve 320. Of course, the first transmission component 331 may also include a third rotating shaft 3322, which intersects with and is connected to the first rotating shaft 3312. The second transmission component 332 may also include only the second rotating shaft 3321, without including the third rotating shaft 3322.

[0056] Compared to the configuration described below, where both the first transmission component 331 and the second transmission component 332 include a third rotating shaft 3322, this configuration can reduce costs and, on the other hand, help reduce power loss, thereby improving transmission efficiency.

[0057] In other embodiments, both the first transmission member 331 and the second transmission member 332 may include a third rotating shaft 3322. The third rotating shaft 3322 of the first transmission member 331 may intersect and connect with the first rotating shaft 3312, and the third rotating shaft 3322 of the second transmission member 332 may intersect and connect with the second rotating shaft 3321.

[0058] Optionally, the second shaft 3321 and the third shaft 3322 can be perpendicular. This arrangement can improve the stability of the transmission and prevent additional loads and wear caused by shaft misalignment.

[0059] In some embodiments, the second rotating shaft 3321 and the third rotating shaft 3322 can be connected by a connecting block 3323. Of course, the second rotating shaft 3321 and the third rotating shaft 3322 can also be directly connected, for example, the second rotating shaft 3321 and the third rotating shaft 3322 can be cast into a single structure.

[0060] In an optional embodiment, the first connector 3311 may be provided with a first protrusion 3313, and the second transmission gear 338 may be provided with a first connecting hole. The first protrusion 3313 may extend into the first connecting hole and be interference-fitted with the first connecting hole. Here, the first connecting hole and the second transmission gear 338 are coaxial.

[0061] In an optional embodiment, the transmission assembly 330 may further include a first bushing 334 and a second bushing 335. The first bushing 334 may be fitted onto the first end of the transmission shaft 333 and connected to the transmission shaft 333. The first bushing 334 may be rotatably connected to the first rotating shaft 3312. The second bushing 335 may be fitted onto the second end of the transmission shaft 333 and connected to the transmission shaft 333. The second bushing 335 may be rotatably connected to the third rotating shaft 3322. This configuration eliminates the need for through holes in the transmission shaft 333 for the first rotating shaft 3312 and the third rotating shaft 3322 to pass through, and facilitates the connection between the transmission shaft 333 and the first rotating shaft 3312 and the third rotating shaft 3322. Of course, the transmission assembly 330 may also exclude the first bushing 334 and the second bushing 335, and through holes may be provided at both ends of the transmission shaft 333 for the first rotating shaft 3312 and the third rotating shaft 3322 to pass through, respectively.

[0062] Specifically, the first bushing 334 may be provided with two first connecting ears 3341, which can be rotatably connected to both ends of the first rotating shaft 3312 to realize the rotatable connection between the first transmission component 331 and the transmission shaft 333; the second bushing 335 may be provided with two second connecting ears 3351, which can be rotatably connected to both ends of the third rotating shaft 3322 to realize the rotatable connection between the second transmission component 332 and the transmission shaft 333. This arrangement can improve the connection stability between the first bushing 334 and the first rotating shaft 3312 and the connection stability between the second bushing 335 and the third rotating shaft 3322.

[0063] Of course, the first bushing 334 can also be provided with only one first connecting ear 3341, and the second bushing 335 can also be provided with only one second connecting ear 3351.

[0064] Optionally, the transmission assembly 330 may further include a second connecting member 336, which can be connected to the locking rod sleeve 320. Specifically, the second connecting member 336 can be connected to the fourth transmission gear 340 and rotatably connected to the second rotating shaft 3321. Specifically, the second connecting member 336 may be provided with two third connecting ears 3361, which can be rotatably connected to both ends of the second rotating shaft 3321 respectively, thereby achieving a rotatable connection between the locking rod sleeve 320 and the second transmission component 332. This configuration improves the connection stability between the locking rod sleeve 320 and the second rotating shaft 3321, thus contributing to improved transmission stability. Of course, the second connecting member 336 may also only have one third connecting ear 3361.

[0065] In some embodiments, the second connector 336 may be provided with a second protrusion 3324, and the fourth transmission gear 340 may be provided with a second connecting hole. The second protrusion 3324 may extend into the second connecting hole and be press-fitted with the wall of the second connecting hole. Here, the second connecting hole may be coaxial with the fourth transmission gear 340.

[0066] In an optional embodiment, at least one of the first transmission member 331 and the second transmission member 332 can be a universal joint; specifically, at least one of the first transmission member 331 and the second transmission member 332 can be a ball joint universal joint. This configuration, compared to a cross-type universal joint, is more compact and occupies less space, thus helping to reduce the space occupied by the transmission components.

[0067] In an optional embodiment of this application, the transmission shaft 333 may include a first transmission shaft and a second transmission shaft. The first transmission shaft may be connected to a first transmission member 331, and the second transmission shaft may be connected to a second transmission member 332. Furthermore, the first and second transmission shafts are slidably connected and can slide relative to each other along the axial direction of the transmission shaft 333. When the locking lever knob 310 switches from its initial position to its offset position, the first and second transmission shafts can slide relative to each other, increasing the overall length of the transmission shaft 333. This ensures that the transmission shaft 333 can still be connected to the locking lever knob 310 and the locking lever sleeve 320 in a transmission manner. This configuration ensures that after the locking lever knob 310 shifts with the handle 200, the mounting positions of the locking lever knob 310 and the locking lever sleeve 320 in the thickness direction of the handle 200 remain unchanged.

[0068] It should be noted that when the locking lever knob 310 is in its initial position, it is opposite to the middle position of the locking seat 100 in the width direction of the locking seat 100. The offset position can be located to the left or right of the initial position.

[0069] In other embodiments, the drive shaft 333 may not include the first drive shaft and the second drive shaft. When the locking lever knob 310 and the handle 200 are relatively fixed in the thickness direction of the handle 200, the locking lever sleeve 320 can slide along the thickness direction of the handle 200. When the locking lever knob 310 switches from the initial position to the offset position, the locking lever sleeve 320 can move towards the locking lever knob 310 under the pulling force of the drive shaft 333 to ensure that the position of the locking lever knob 310 in the thickness direction of the handle 200 remains unchanged. When the locking lever sleeve 320 and the handle 200 are relatively fixed in the thickness direction of the handle 200, the locking lever knob 310 can slide along the thickness direction of the handle 200. When the locking lever knob 310 switches from the initial position to the offset position, the locking lever knob 310 can move towards the locking lever sleeve 320 under the pulling force of the drive shaft 333 to ensure that the position of the locking lever sleeve 320 in the thickness direction of the handle 200 remains unchanged.

[0070] Based on the locking rod driving mechanism 300 provided in the embodiments of this application, the embodiments of this application also provide a lock, which may include a lock seat 100, a handle 200, a locking rod and the locking rod driving mechanism 300 described in any of the above embodiments. The locking rod is rotatably disposed in the lock seat 100, the handle 200 may be connected to the lock seat 100, the locking rod knob 310 of the locking rod driving mechanism 300 may be disposed on the handle 200, and the locking rod sleeve 320 of the locking rod driving mechanism 300 may be disposed on the lock seat 100 and connected to the locking rod.

[0071] Here, the lock base 100 is installed on the door body 600. The lock base 100 may be provided with a connecting part 110, and the handle 200 may be installed on the connecting part 110. The handle 200 may be a rear handle, which may be located inside the door body 600 to facilitate the user to open and close the door from the inside. The lock rod may be connected to the lock tongue assembly, which may include a square latch and a beveled latch.

[0072] The beneficial effects achieved by the lock provided in this application embodiment are consistent with the beneficial effects achieved by the lock rod drive mechanism 300 provided in this application embodiment, and will not be repeated here.

[0073] In an optional embodiment of this application, the lock seat 100 is provided with a mounting hole, and the lock rod sleeve 320 is slidably and rotatably disposed in the mounting hole, and the lock rod sleeve 320 can slide along the axial direction of the mounting hole. This arrangement allows the lock rod sleeve 320 to both rotate relative to the lock seat 100 and slide relative to the lock seat 100, so that the lock rod sleeve 320 can adapt to the offset of the lock rod knob 310.

[0074] In other embodiments, the locking sleeve 320 may be rotatably disposed within the mounting hole and cannot slide along the axial direction of the mounting hole.

[0075] Optionally, the locking bar can be slidably connected to the locking bar sleeve 320. With this configuration, when the locking bar sleeve 320 slides towards the locking bar knob 310 under the tension of the drive shaft 333, the locking bar sleeve 320 can slide relative to the locking bar without causing the locking bar to slide along with it. This prevents the locking bar from easily disengaging from the lock's bolt assembly, thus ensuring the stability of the connection between the locking bar and the lock's bolt assembly.

[0076] Of course, the locking bar can also be fixedly connected to the locking bar sleeve 320.

[0077] Optionally, the locking rod can be a square rod, and the locking rod sleeve 320 can be provided with a square hole. The square rod can be embedded in the square hole and be circumferentially limited by the hole wall.

[0078] In an optional embodiment, the lock may further include a reset elastic element 400, which can be connected to both the handle 200 and the lock lever knob 310. The reset elastic element 400 allows the lock lever knob 310 to automatically return to its initial angle after the lock lever knob 310 unlocks, ensuring that the lock returns to the locked state after each use, thus improving the security and convenience of the lock. Here, the reset elastic element 400 can be a torsion spring, which can be sleeved around the lock lever knob 310, with one torsion arm connected to the handle 200 and the other torsion arm connected to the lock lever knob 310.

[0079] In an optional embodiment of this application, a fixing member may be provided on the lock base 100, and a first mounting hole, a second mounting hole, and a third mounting hole may be provided on the handle 200. The first mounting hole may be located near the first edge of the handle 200, the second mounting hole may be located near the second edge of the handle 200, and the third mounting hole may be located between the first and second mounting holes. The first, second, and third mounting holes may be connected to the fixing member respectively. When the opening side of the door 600 is the first side of the door 600, the first mounting hole is connected to the fixing member; when the opening side of the door 600 is the second side of the door 600, the second mounting hole is connected to the fixing member. In this way, the handle 200 can adapt to different opening directions. At the same time, it can also increase the gap between the handle 200 and the door frame 500, thereby achieving the purpose of preventing hand pinching.

[0080] Here, the first edge can be the left edge of the handle 200, and the second edge can be the right edge of the handle 200.

[0081] Compared to the method of setting a sliding groove on the handle 200, the method of setting a first mounting hole, a second mounting hole and a third mounting hole on the handle 200 allows for easier assembly when the handle 200 is installed in the center. Only the third mounting hole needs to be aligned with the fastener, without the need for precise adjustment of the position of the handle 200.

[0082] In other embodiments, the handle 200 may not have the first mounting hole, the second mounting hole, and the third mounting hole, and the handle 200 may have a sliding groove, the fixing member is located in the sliding groove, and the fixing member and the sliding groove can slide relative to each other.

[0083] In an optional embodiment, the lock base 100 may also be provided with a positioning structure, and the handle 200 may also be provided with a first limiting structure, a second limiting structure, and a third limiting structure. The first limiting structure may be located near the first edge of the handle 200, and the second limiting structure may be located near the second edge of the handle 200. When the first limiting structure and the positioning structure are in a limiting engagement, the first mounting hole can be aligned and connected to the fixing member. When the second limiting structure and the positioning structure are in a limiting engagement, the second mounting hole can be aligned and connected to the fixing member. When the third limiting structure and the positioning structure are in a limiting engagement, the third mounting hole can be aligned and connected to the fixing member. This configuration eliminates the need for manual alignment during the installation of the handle 200, saving time and effort, and making installation simple and convenient.

[0084] Optionally, the positioning structure may include a positioning bead and an elastic element. The lock seat 100 may be provided with an installation groove. The elastic element may be located in the installation groove, and one end of the elastic element is connected to the bottom of the installation groove. The other end of the elastic element may be connected to the positioning bead. The positioning bead may retract into the installation groove under the squeezing action of the handle 200. The first limiting structure may include a first limiting groove, the second limiting structure may include a second limiting groove, and the third limiting structure may include a third limiting groove. When the first limiting groove, the second limiting groove, or the third limiting groove is opposite to the positioning bead, the positioning bead may be embedded in the first limiting groove, the second limiting groove, or the third limiting groove under the elastic force of the elastic element, so as to realize the limiting cooperation between the positioning structure and the first limiting structure, the second limiting structure, or the third limiting structure.

[0085] In this embodiment, when the first mounting hole or the second mounting hole of the handle 200 is connected to the fixing member, that is, when the handle 200 is set in the left-biased position or the right-biased position, the locking lever knob 310 moves together with the handle 200. Since the position of the locking lever sleeve 320 remains unchanged, the transmission shaft 333 will be deflected by the force of the locking lever knob 310, so as to ensure that the locking lever knob 310 and the locking lever sleeve 320 can still be connected in transmission.

[0086] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A locking lever drive mechanism, characterized in that, include: A locking lever knob (310) is rotatably mounted on the handle (200) of the lock; A locking rod sleeve (320) is rotatably mounted on the lock seat (100) of the lock and is used to connect with the locking rod of the lock. The transmission assembly (330) includes a first transmission member (331), a second transmission member (332), and a transmission shaft (333). The locking lever knob (310) is connected to the first end of the transmission shaft (333) via the first transmission member (331), and the locking lever sleeve (320) is connected to the second end of the transmission shaft (333) via the second transmission member (332). The first transmission member (331) is rotatable relative to the transmission shaft (333) about a first rotation axis, and the second transmission member (332) is rotatable relative to the transmission shaft (333) about a first rotation axis. The two rotation axes rotate relative to the locking rod sleeve (320). At least one of the first transmission member (331) and the second transmission member (332) can also rotate relative to the transmission shaft (333) about a third rotation axis. The first rotation axis is parallel to the second rotation axis. The first rotation axis and the third rotation axis intersect on the axial projection of the transmission shaft (333). The first rotation axis, the second rotation axis and the third rotation axis are all perpendicular to the rotation axis of the locking rod knob (310).

2. The locking lever driving mechanism according to claim 1, characterized in that, The transmission assembly (330) also includes: The first transmission gear (337) is coaxially connected to the locking lever knob (310); The second transmission gear (338) is connected to the first transmission member (331), and the second transmission gear (338) meshes with the first transmission gear (337).

3. The locking lever driving mechanism according to claim 2, characterized in that, The transmission assembly (330) also includes: The third transmission gear (339) is coaxially connected to the locking rod sleeve (320); The fourth transmission gear (340) is connected to the second transmission member (332), and the fourth transmission gear (340) meshes with the third transmission gear (339).

4. The locking lever driving mechanism according to claim 3, characterized in that, The transmission ratio between the second transmission gear (338) and the first transmission gear (337) is greater than 1. The module of the second transmission gear (338) is the same as that of the fourth transmission gear (340), and the number of teeth of the second transmission gear (338) is greater than that of the fourth transmission gear (340). The module and number of teeth of the third transmission gear (339) are the same as those of the fourth transmission gear (340).

5. The locking lever driving mechanism according to claim 1, characterized in that, The first transmission component (331) includes a first connecting component (3311) and a first rotating shaft (3312). The first connecting component (3311) is connected to the locking lever knob (310). The first connecting component (3311) is rotatably connected to the transmission shaft (333) through the first rotating shaft (3312). The first rotation axis is the axis of the first rotating shaft (3312). The second transmission component (332) includes a second rotating shaft (3321) and a third rotating shaft (3322). The second rotating shaft (3321) is rotatably connected to the locking rod sleeve (320), and the third rotating shaft (3322) is rotatably connected to the transmission shaft (333). The second rotating shaft (3321) and the third rotating shaft (3322) intersect and are connected. The second rotation axis is the axis of the second rotating shaft (3321), and the third rotation axis is the axis of the third rotating shaft (3322).

6. The locking lever driving mechanism according to claim 5, characterized in that, The transmission assembly (330) further includes a first bushing (334), a second bushing (335), and a second connector (336). The first bushing (334) is sleeved on the first end of the transmission shaft (333) and connected to the transmission shaft (333). The second bushing (335) is sleeved on the second end of the transmission shaft (333) and connected to the transmission shaft (333). The first bushing (334) is provided with two first connecting ears (3341), and the two first connecting ears (3341) are respectively connected to... The two ends of the first rotating shaft (3312) are rotatably connected. The second bushing (335) is provided with two second connecting ears (3351). The two second connecting ears (3351) are rotatably connected to the two ends of the third rotating shaft (3322). The second connecting piece (336) is connected to the locking rod sleeve (320). The second connecting piece (336) is provided with two third connecting ears (3361). The two third connecting ears (3361) are rotatably connected to the two ends of the second rotating shaft (3321).

7. The locking lever driving mechanism according to claim 1, characterized in that, The transmission shaft (333) includes a first transmission shaft and a second transmission shaft. The first transmission shaft is connected to the first transmission member (331), and the second transmission shaft is connected to the second transmission member (332). The first transmission shaft and the second transmission shaft are slidably connected, and the first transmission shaft and the second transmission shaft can slide relative to each other along the axial direction of the transmission shaft (333).

8. A lock, characterized in that, The device includes a lock base (100), a handle (200), a lock rod, and a lock rod drive mechanism (300) as described in any one of claims 1-7. The lock rod is rotatably disposed within the lock base (100), the handle (200) is connected to the lock base (100), the lock rod drive mechanism (300) has a lock rod knob (310) disposed on the handle (200), and the lock rod drive mechanism (300) has a lock rod sleeve (320) disposed on the lock base (100) and connected to the lock rod.

9. The lock according to claim 8, characterized in that, The lock seat (100) is provided with a mounting hole, and the lock rod sleeve (320) is slidably and rotatably disposed in the mounting hole. The lock rod sleeve (320) can slide along the axial direction of the mounting hole.

10. The lock according to claim 9, characterized in that, The locking rod is slidably connected to the locking rod sleeve (320).

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