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 fixing piece and a transmission assembly, the lock rod knob is used for being rotatably arranged on a handle of a lock, and the lock rod knob can be switched between an initial position and an offset position; the lock rod fixing piece is used for being rotatably arranged on a lock seat of a lock and used for being connected with a lock rod of the lock. The transmission assembly is used for being movably arranged on the handle, the lock rod rotary knob is in transmission connection with the transmission assembly at the initial position and the deviation position so as to drive the transmission assembly to move, and the transmission assembly is in transmission connection with the lock rod fixing piece so as to drive the lock rod fixing piece to rotate. According to the scheme, a user can adjust the installation position of the lock rod knob according to needs so as to enlarge the gap between the lock rod knob and the door frame, then the user can hold and operate the lock rod knob conveniently, the lock rod knob can move synchronously along with the handle, and then the lock rod knob can be kept in the middle of 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, and the locking lever knob can be switched between an initial position and an offset position;

[0008] A locking rod fixing member is used to be rotatably mounted on the lock seat of the lock and to be connected to the locking rod of the lock;

[0009] A transmission assembly is movably mounted on the handle. The locking lever knob is connected to the transmission assembly at both the initial position and the offset position to drive the transmission assembly to move. The transmission assembly is connected to the locking lever fixing member to drive the locking lever fixing member to rotate.

[0010] Secondly, embodiments of this application also provide a lock, which includes a lock base, a handle, a lock rod, and the aforementioned lock rod driving mechanism. The handle is connected to the lock base, the lock rod is rotatably disposed within the lock base, the lock rod knob of the lock rod driving mechanism is rotatably disposed on the handle, the lock rod fixing member of the lock rod driving mechanism is rotatably disposed on the lock base, the lock rod fixing member is connected to the lock rod, and the transmission component of the lock rod driving mechanism is movably disposed on the handle.

[0011] In this embodiment, both the locking lever knob and the locking lever fixing member are connected to the transmission assembly. Thus, rotating the locking lever knob can drive the transmission assembly to move, and the movement of the transmission assembly can drive the locking lever fixing member to rotate, thereby realizing the rotation of the locking lever and achieving mechanical locking or unlocking of the lock.

[0012] Since the locking lever knob can be connected to the transmission component at both the initial and offset positions, it means that the locking lever knob can drive the locking lever to rotate at different positions. In this way, the user can adjust the installation position of the locking lever knob as needed to increase the gap between the locking lever knob and the door frame, thereby making it easier for the user to hold and operate the locking lever knob. In addition, the locking lever knob can move synchronously with the handle, which helps to keep the locking lever knob in the center position of the handle. Attached Figure Description

[0013] Figure 1 This is an exploded view of the lock disclosed in the embodiments of this application;

[0014] Figure 2 This is one of the installation diagrams of the lock disclosed in the embodiments of this application (when the handle is installed in the center);

[0015] Figure 3 This is the second schematic diagram of the lock installation disclosed in the embodiments of this application (with the handle installed in the center and the cover plate hidden).

[0016] Figure 4 yes Figure 3 An enlarged view of part A in the image;

[0017] Figure 5 This is the third schematic diagram of the lock installation disclosed in the embodiments of this application (handle deflected to the left);

[0018] Figure 6 This is the fourth schematic diagram of the lock installation disclosed in the embodiments of this application (the handle is tilted to the left and the cover plate is hidden).

[0019] Figure 7 This is the fifth schematic diagram of the lock installation disclosed in the embodiments of this application (handle deflected to the right);

[0020] Figure 8This is the sixth schematic diagram of the lock installation disclosed in the embodiments of this application (the handle is deflected to the right and the cover plate is hidden).

[0021] Figure 9 This is a front view of the transmission assembly disclosed in the embodiments of this application;

[0022] Figure 10 This is one of the connection diagrams of the locking rod fixing member and the second transmission wheel disclosed in the embodiments of this application from a three-dimensional perspective;

[0023] Figure 11 This is the second diagram showing the connection relationship between the locking rod fixing member and the second transmission wheel from a three-dimensional perspective, as disclosed in the embodiments of this application.

[0024] Figure 12 This is the third diagram showing the connection relationship between the locking rod fixing member and the second transmission wheel from a three-dimensional perspective, as disclosed in the embodiments of this application.

[0025] Figure 13 This is a perspective view of the first transmission wheel disclosed in the embodiments of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100-Lock base; 110-Connecting part; 111-Fixing screw; 200-Handle; 210-Handle mounting base;

[0028] 220-Fixed bracket; 230-Cover plate; 240-Sliding component; 250-Sliding hole; 300-Locking rod drive mechanism;

[0029] 310 - Locking bar knob; 320 - Locking bar fixing component; 321 - Square hole; 322 - First fixing hole;

[0030] 323 - Second fixing hole; 330 - Transmission assembly; 331 - First rack; 332 - Second rack;

[0031] 333-Connecting frame; 3331-First connecting rod; 3332-Second connecting rod; 3333-Reinforcing rod;

[0032] 334 - Slide groove; 340 - First drive wheel; 341 - Connecting hole; 350 - Second drive wheel;

[0033] 360 - Connecting pin; 400 - Reset elastic element; 500 - Door frame; 600 - Door body. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] refer to Figures 1-13 The lock lever drive mechanism 300 provided in this application embodiment may include a lock lever knob 310, a lock lever fixing member 320, and a transmission assembly 330.

[0038] The locking lever knob 310 is rotatably mounted on the handle 200 of the lock. The locking lever knob 310 can switch between an initial position and an offset position so that it can move synchronously with the handle 200 and thus remain in the center position of the handle 200. The locking lever fixing member 320 is rotatably mounted on the lock seat 100 of the lock and is used to connect with the locking lever of the lock so as to drive the locking lever to rotate, thereby realizing mechanical locking or mechanical unlocking.

[0039] The transmission assembly 330 is movably mounted on the handle 200. The locking lever knob 310 can be connected to the transmission assembly 330 in both the initial and offset positions to drive the transmission assembly 330 to move. The transmission assembly 330 is connected to the locking lever fixing member 320 to drive the locking lever fixing member 320 to rotate.

[0040] In this embodiment, since both the locking lever knob 310 and the locking lever fixing member 320 are connected to the transmission assembly 330, rotating the locking lever knob 310 can drive the transmission assembly 330 to move, and then the movement of the transmission assembly 330 can drive the locking lever fixing member 320 to rotate, thereby realizing the rotation of the locking lever and thus realizing the mechanical locking or unlocking of the lock.

[0041] Since the locking lever knob 310 can be connected to the transmission component 330 in both the initial and offset positions, it means that the locking lever knob 310 can drive the locking lever to rotate at different positions. In this way, the user can adjust the installation position of the locking lever knob 310 as needed to increase the gap between the locking lever knob 310 and the door frame 500, thereby making it easier for the user to hold and operate the locking lever knob 310. In addition, the locking lever knob 310 can move synchronously with the handle 200, which helps to keep the locking lever knob 310 in the center position of the handle 200.

[0042] In optional embodiments of this application, such as Figure 4 As shown, the locking lever drive mechanism 300 may further include a first transmission wheel 340 and a second transmission wheel 350. The first transmission wheel 340 may be coaxially connected to the locking lever knob 310, and the second transmission wheel 350 may be coaxially connected to the locking lever fixing member 320. The first transmission wheel 340 and the second transmission wheel 350 may be respectively engaged with the transmission assembly 330. This arrangement can improve the transmission stability and transmission efficiency between the locking lever knob 310, the transmission assembly 330, and the locking lever fixing member 320.

[0043] Optionally, the first drive wheel 340 can also be connected to the locking lever knob 310 via a connecting pin 360, which can improve the connection strength between the first drive wheel 340 and the locking lever knob 310. Here, the first drive wheel 340 can be provided with a connecting hole 341, through which the connecting pin 360 can pass to connect with the locking lever knob 310, and the diameter of the connecting hole 341 can be smaller than the head diameter of the connecting pin 360.

[0044] In other embodiments, neither the first transmission wheel 340 nor the second transmission wheel 350 may be engaged with the transmission assembly 330. Specifically, the first transmission wheel 340 may contact the transmission assembly 330 and achieve a transmission connection through friction between them, while the second transmission wheel 350 may contact the transmission assembly 330 and achieve a transmission connection through friction between them. When the locking lever knob 310 is rotated, the first transmission wheel 340 can drive the transmission assembly 330 to slide through friction, and the transmission assembly 330 can drive the second transmission wheel 350 to rotate through friction.

[0045] In an optional embodiment, the transmission ratio between the second transmission wheel 350 and the first transmission wheel 340 can be greater than 1. This configuration achieves the purpose of saving effort, facilitating quick and effortless unlocking via the locking lever knob 310.

[0046] Of course, the transmission ratio between the second transmission wheel 350 and the first transmission wheel 340 can also be less than 1 or equal to 1.

[0047] Optionally, the transmission ratio between the second transmission wheel 350 and the first transmission wheel 340 can be 15 / 8. This setting can save approximately half the force. Here, the number of teeth on the second transmission wheel 350 can also be 15, and the number of teeth on the first transmission wheel 340 can be 8. Alternatively, the transmission ratio between the second transmission wheel 350 and the first transmission wheel 340 can also be 2 to save half the force. Of course, the transmission ratio between the second transmission wheel 350 and the first transmission wheel 340 can also be less than 2 or greater than 2, depending on the specific requirements.

[0048] In one alternative embodiment of this application, such as Figure 9 As shown, the transmission assembly 330 may include a first rack 331 and a second rack 332. The first rack 331 may mesh with the first transmission wheel 340, and the second rack 332 may mesh with the second transmission wheel 350.

[0049] The length direction of the first rack 331 and the length direction of the second rack 332 can both be parallel to the first direction. The first rack 331 and the second rack 332 can be distributed at intervals along the second direction. The first direction is the direction from the initial position to the offset position. The second direction is perpendicular to the first direction. Furthermore, the first rack 331 and the second rack 332 can be connected by the connecting bracket 333.

[0050] This configuration allows the rotating locking lever knob 310 to move the first rack 331, which in turn moves the second rack 332. The second rack 332 then rotates the second transmission wheel 350, which in turn rotates the locking lever fixing member 320. Furthermore, the distribution of the first rack 331 and the second rack 332 in the second direction reduces the space occupied by the transmission assembly 330 in the first direction, thus reducing the width of the handle 200. Moreover, the method of engaging the first rack 331 and the second rack 332 with the first transmission wheel 340 and the second transmission wheel 350 respectively provides higher transmission precision and enables precise motion control compared to using a first chain and a second chain engaged with the first transmission wheel 340 and the second transmission wheel 350 respectively. Additionally, the racks have higher rigidity, maintaining stable transmission performance under high loads, resulting in more stable transmission.

[0051] In other embodiments, the transmission assembly 330 may also include a first chain and a second chain, with a first transmission wheel 340 meshing with the first chain and a second transmission wheel 350 meshing with the second chain. The length directions of both the first chain and the second chain may be parallel to the first direction, and the first chain and the second chain are distributed along the second direction. The first chain and the second chain may be mounted on a connecting frame 333, and the connecting frame 333 is slidably connected to the handle 200.

[0052] In an optional embodiment, the connecting frame 333 may include a first connecting rod 3331 and a second connecting rod 3332 parallel to the first connecting rod 3331. The first end of the first connecting rod 3331 and the first end of the second connecting rod 3332 may be connected to both ends of the first rack 331, and the second end of the first connecting rod 3331 and the second connecting rod 3332 may be connected to both ends of the second rack 332. Furthermore, the distance between the first rack 331 and the second rack 332 may be greater than the rotation diameter of the first transmission wheel 340. This configuration improves the connection strength between the first rack 331 and the second rack 332. Simultaneously, since the first connecting rod 3331 and the second connecting rod 3332 are connected to the ends of the first rack 331 and the second rack 332 respectively and are located at both ends of the first rack 331 and the second rack 332, it avoids affecting the rotation of the first transmission wheel 340 and the second transmission wheel 350, and ensures that the movement distance of the transmission assembly 330 is maximized.

[0053] Here, the first transmission wheel 340 can be located between the first rack 331 and the second rack 332, and the teeth of the first rack 331 and the second rack 332 both protrude toward the locking rod fixing member 320. In this way, the connecting frame 333 can prevent the second transmission wheel 350 from being obstructed.

[0054] Of course, the connecting frame 333 may also include only the first connecting rod 3331.

[0055] Optionally, the connecting frame 333 may also include a reinforcing rod 3333, which may be located between the first connecting rod 3331 and the second connecting rod 3332. The two ends of the reinforcing rod 3333 may be connected to the first connecting rod 3331 and the second connecting rod 3332 respectively. This arrangement can improve the structural strength of the connecting frame 333, thereby helping to prevent the connecting frame 333 from being damaged due to excessive force.

[0056] Alternatively, a groove 334 may be provided between the reinforcing rod 3333 and the second rack 332. The groove 334 can be slidably connected with the slider 240 on the handle 200 to realize the sliding connection between the transmission assembly 330 and the handle 200.

[0057] In another optional embodiment of this application, the transmission assembly 330 may include a first rack 331, and both the first transmission wheel 340 and the second transmission wheel 350 may mesh with the first rack 331. Furthermore, the length direction of the first rack 331 is parallel to the direction from the initial position to the offset position. This arrangement helps to reduce the space occupied by the transmission assembly 330 in the first direction. Moreover, compared to using a first chain to mesh with the first transmission wheel 340 and the second transmission wheel 350, the method of connecting the first rack 331 with the first transmission wheel 340 and the second transmission wheel 350 respectively provides higher transmission accuracy and enables precise motion control. Additionally, the rack has high rigidity, maintaining stable transmission performance under high loads, resulting in more stable transmission.

[0058] In other embodiments, the transmission assembly 330 may also include a first chain, and the first transmission wheel 340 and the second transmission wheel 350 may both be connected to the first chain. The length direction of the first chain may be parallel to the first direction.

[0059] In an optional embodiment, the rotation direction of the first drive wheel 340 and the rotation direction of the second drive wheel 350 can be the same. This arrangement allows the rotation direction of the locking bar fixing member 320 to be the same as the rotation direction of the locking bar knob 310. Compared to the arrangement described below where the rotation directions of the first drive wheel 340 and the second drive wheel 350 are opposite, this arrangement more easily adapts to the driving logic of the latch assembly, thus eliminating the need to change the installation direction of the locking bar knob 310.

[0060] Optionally, the teeth of the first rack 331 protrude in the same direction as the teeth of the second rack 332, so that the first transmission wheel 340 and the second transmission wheel 350 rotate in the same direction.

[0061] Of course, the rotation directions of the first transmission wheel 340 and the second transmission wheel 350 can also be opposite.

[0062] In an optional embodiment, the initial position can be used to be opposite to the middle position of the lock base 100 in the offset direction of the handle 200. When the lock lever knob 310 switches from the initial position to the offset position, the transmission component 330 drives the lock lever fixing member 320 to rotate 90°. With this configuration, the lock lever knob 310 can ensure that the lock lever fixing member 320 is connected to the lock lever in both the initial position and the offset position without changing the installation angle of the lock lever or the installation method of the lock tongue assembly.

[0063] Optionally, the locking bar is a square bar, such as... Figure 11 and Figure 12As shown, the locking bar fixing member 320 is provided with a square hole 321. The square bar can be embedded in the square hole 321 and circumferentially limited by the hole wall of the square hole 321, so that the locking bar fixing member 320 can drive the square bar to rotate. When the locking bar knob 310 is switched from the initial position to the offset position, the transmission component 330 moves synchronously with the locking bar knob 310. Since the transmission component 330 is connected to the locking bar fixing member 320, the transmission component 330 can drive the locking bar fixing member 320 to rotate 90°, so that the square hole 321 rotates 90°. After the square hole 321 rotates 90°, it is exactly aligned with the square bar, so that the installation angle of the square bar does not need to be changed, nor does it need to be changed in the installation method of the lock tongue assembly or disassembled or replaced.

[0064] Here, the offset position can include a left offset position and a right offset position. When the door 600 is adjusted to the left opening position, the handle 200 is adjusted to the left offset installation position, and the lock rod knob 310 switches from the initial position to the left offset position as the handle 200 offsets. The transmission component 330 is adjusted to the left offset position along with the handle 200. At this time, the transmission component 330 drives the lock rod fixing member 320 to rotate 90° clockwise. When the door 600 is adjusted to the right opening position, the handle 200 is adjusted to the right offset installation position, and the lock rod knob 310 switches from the initial position to the right offset position as the handle 200 offsets. The transmission component 330 is adjusted to the right offset position along with the handle 200. At this time, the transmission component 330 drives the lock rod fixing member 320 to rotate 90° counterclockwise.

[0065] Of course, when the locking lever knob 310 is switched from the initial position to the offset position, the angle by which the transmission assembly 330 drives the locking lever fixing member 320 to rotate can be greater than 90° or less than 90°.

[0066] In this embodiment, the travel distance of the handle 200 from the centered position to the left-biased mounting position is 11.8 mm, and the travel distance of the handle 200 from the centered position to the right-biased mounting position is 11.8 mm. That is, the travel distance L of the locking lever knob 310 from the initial position to the offset position is 11.8 mm. This ensures that the grip portion of the locking lever knob 310 remains vertical. It should be noted that the grip portion of the locking lever knob 310 refers to the structure exposed outside the handle 200 for the user to grasp.

[0067] Optionally, each of the second racks 332 can have 15 teeth, and the module of each second rack 332 can be 1. The second transmission wheel 350 can have 15 teeth, and the module of the second transmission wheel 350 can be 1. In this way, when the locking lever knob 310 switches from the initial position to the offset position, the locking lever fixing member 320 can rotate exactly 90°. Here, the stroke L = 3.14 × 15 × 90° / 360° ≈ 11.8 mm.

[0068] In some embodiments, the locking bar fixing member 320 may also be provided with a first fixing hole 322 and a second fixing hole 323. Both the first fixing hole 322 and the second fixing hole 323 can communicate with the square hole 321, and the first fixing hole 322 and the second fixing hole 323 can be perpendicular to each other. Both the first fixing hole 322 and the second fixing hole 323 can be perpendicular to the axis of the locking bar fixing member 320, that is, both the first fixing hole 322 and the second fixing hole 323 radially penetrate the locking bar fixing member 320. The locking bar driving mechanism 300 may further include a fixing member. When the locking bar knob 310 is in the initial position, the fixing member can pass through the first fixing hole 322 and connect to the locking bar. When the locking bar knob 310 is in the offset position, the fixing member can pass through the second fixing hole 323 and connect to the locking bar. This configuration can improve the connection stability between the locking bar fixing member 320 and the locking bar. Here, the fixing member can be a screw or a fixing pin.

[0069] Based on the locking rod drive mechanism 300 provided in the embodiments of this application, the embodiments of this application also provide a lock, which may include a lock base 100, a handle 200, a locking rod, and the locking rod drive mechanism 300 described in any of the above embodiments. The handle 200 may be connected to the lock base 100, the locking rod is rotatably disposed in the lock base 100, the locking rod knob 310 of the locking rod drive mechanism 300 is rotatably disposed on the handle 200, the locking rod fixing member 320 of the locking rod drive mechanism 300 is rotatably disposed on the lock base 100, the locking rod fixing member 320 may be connected to the locking rod, and the transmission component 330 of the locking rod drive mechanism 300 is movably disposed on the handle 200.

[0070] 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.

[0071] 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.

[0072] In an optional embodiment, the handle 200 may include a handle mounting base 210, a mounting bracket 220 disposed on the handle mounting base 210, and a cover plate 230 covering the mounting bracket 220. The handle mounting base 210 may be connected to the lock seat 100, the transmission assembly 330 may be disposed on the mounting bracket 220, the lock lever knob 310 may be rotatably disposed on the mounting bracket 220, and at least a portion of the lock lever knob 310 may pass through the cover plate 230 to extend beyond the handle 200, thereby facilitating user operation.

[0073] In an optional embodiment of this application, a slider 240 may be provided on one of the transmission component 330 and the handle 200, and a groove 334 may be provided on the other. The slider 240 can be slidably disposed within the groove 334, and the extending direction of the groove 334 is parallel to the direction from the initial position to the offset position. This arrangement not only enables a sliding connection between the transmission component 330 and the handle 200, but also limits the movement of the transmission component 330, preventing it from deviating from the direction of movement during the movement process and causing transmission failure.

[0074] In other embodiments, the transmission component 330 may not be slidably connected to the handle 200. For example, the transmission component 330 may be placed only on the handle 200, and the transmission component 330 may be connected to the first transmission wheel 340 and the second transmission wheel 350 respectively.

[0075] 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.

[0076] In one alternative embodiment, a fixing screw 111 may be provided on the connecting part 110, and a sliding hole 250 may be provided on the handle 200. The fixing screw 111 is located in the sliding hole 250, and the fixing screw 111 and the sliding hole 250 can slide relative to each other.

[0077] Optionally, to improve the connection stability between the handle 200 and the lock seat 100, the handle 200 may be provided with at least two sliding holes 250, and the connecting part 110 may be provided with at least two fixing screws 111, each fixing screw 111 being located within a sliding hole 250. In this embodiment, the handle 200 may be provided with three sliding holes 250, and the connecting part 110 may be provided with three fixing screws 111.

[0078] In another optional embodiment, a fixing screw 111 may be provided on the connecting part 110, 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 mounting hole and the second mounting hole. The first mounting hole, the second mounting hole, and the third mounting hole may be connected to the fixing screw 111 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 screw 111. 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 screw 111. 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.

[0079] 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.

[0080] Compared to the method of setting a sliding hole 250 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 fixing screw 111, without the need for precise adjustment of the position of the handle 200.

[0081] 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 may align with and connect to the fixing screw 111. When the second limiting structure and the positioning structure are in a limiting engagement, the second mounting hole may align with and connect to the fixing screw 111. When the third limiting structure and the positioning structure are in a limiting engagement, the third mounting hole may align with and connect to the fixing screw 111. 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.

[0082] 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.

[0083] In this embodiment, when the first mounting hole or the second mounting hole of the handle 200 is connected to the fixing screw 111, that is, when the handle 200 is set in the left-biased mounting position or the right-biased mounting position, the locking lever knob 310 moves together with the handle 200. Since the position of the locking lever fixing member 320 remains unchanged, the transmission component 330 will move under the force of the locking lever knob 310 to transmit the force to the locking lever fixing member 320.

[0084] 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, the locking lever knob (310) being switchable between an initial position and an offset position; A locking rod fixing member (320) is rotatably mounted on the lock seat (100) of the lock and is used to connect with the locking rod of the lock; A transmission assembly (330) is movably mounted on the handle (200). The locking lever knob (310) is connected to the transmission assembly (330) at both the initial position and the offset position to drive the transmission assembly (330) to move. The transmission assembly (330) is connected to the locking lever fixing member (320) to drive the locking lever fixing member (320) to rotate.

2. The locking lever driving mechanism according to claim 1, characterized in that, The locking rod drive mechanism (300) further includes a first transmission wheel (340) and a second transmission wheel (350). The first transmission wheel (340) is coaxially connected to the locking rod knob (310), and the second transmission wheel (350) is coaxially connected to the locking rod fixing member (320). The first transmission wheel (340) and the second transmission wheel (350) are respectively engaged with the transmission assembly (330).

3. The locking lever driving mechanism according to claim 2, characterized in that, The transmission ratio between the second transmission wheel (350) and the first transmission wheel (340) is greater than 1.

4. The locking lever driving mechanism according to claim 2, characterized in that, The transmission assembly (330) includes: The first rack (331) meshes with the first transmission wheel (340); The second rack (332) meshes with the second transmission wheel (350); Wherein, the length direction of the first rack (331) and the length direction of the second rack (332) are both parallel to the first direction, the first rack (331) and the second rack (332) are distributed at intervals along the second direction, the first direction is the direction from the initial position to the offset position, the second direction is perpendicular to the first direction, and the first rack (331) and the second rack (332) are connected by a connecting bracket (333).

5. The locking lever driving mechanism according to claim 4, characterized in that, The connecting frame (333) includes a first connecting rod (3331) and a second connecting rod (3332) parallel to the first connecting rod (3331). The first end of the first connecting rod (3331) and the first end of the second connecting rod (3332) are respectively connected to the two ends of the first rack (331). The second end of the first connecting rod (3331) and the second end of the second connecting rod (3332) are respectively connected to the two ends of the second rack (332). The distance between the first rack (331) and the second rack (332) is greater than the rotation diameter of the first transmission wheel (340).

6. The locking lever driving mechanism according to claim 2, characterized in that, The transmission assembly (330) includes a first rack (331), the first transmission wheel (340) and the second transmission wheel (350) are both meshed with the first rack (331), and the length direction of the first rack (331) is parallel to the direction from the initial position to the offset position.

7. The locking lever driving mechanism according to claim 2, characterized in that, The rotation direction of the first transmission wheel (340) is the same as that of the second transmission wheel (350).

8. The locking lever driving mechanism according to claim 1, characterized in that, The initial position is used to be opposite to the middle position of the lock seat (100) in the offset direction of the handle (200). When the lock lever knob (310) is switched from the initial position to the offset position, the transmission assembly (330) drives the lock lever fixing member (320) to rotate 90°.

9. 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 1-8. The handle (200) is connected to the lock base (100), the lock rod is rotatably disposed within the lock base (100), the lock rod knob (310) of the lock rod drive mechanism (300) is rotatably disposed on the handle (200), the lock rod fixing member (320) of the lock rod drive mechanism (300) is rotatably disposed on the lock base (100), the lock rod fixing member (320) is connected to the lock rod, and the transmission assembly (330) of the lock rod drive mechanism (300) is movably disposed on the handle (200).

10. The lock according to claim 9, characterized in that, The transmission assembly (330) and the handle (200) are provided with a slide (240) on one and a groove (334) on the other. The slide (240) is slidably disposed in the groove (334), and the extension direction of the groove (334) is parallel to the direction from the initial position to the offset position.

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