Reversing spring bolt structure and lock

Abstract

The invention discloses a reversing spring bolt structure and a lock. According to the reversing spring bolt structure, a lock box is provided with a spring bolt hole, a cover plate and the lock box are connected to form a mounting cavity, a rotating wheel driving assembly and a spring bolt assembly are arranged in the mounting cavity, and the rotating wheel driving assembly is in transmission connection with the spring bolt assembly; the rotating wheel driving assembly is rotated to drive the spring bolt assembly to move towards one side of the rotating wheel driving assembly along the spring bolt hole to form an opening state; the rotating wheel driving assembly is loosened, and the spring bolt assembly resets to form an initial state; when the spring bolt assembly is in an initial state, the spring bolt assembly is pulled to move towards the side away from the rotating wheel driving assembly along the spring bolt hole to a disengaged state, and the spring bolt assembly is rotated to achieve reversing. Reversing can be completed only through simple pulling and rotating operation, the reversing process is simplified, and the installation time is shortened; meanwhile, reversing is achieved by directly pulling out the spring bolt assembly, the same lock body can adapt to the left opening mode and the right opening mode of the door and window, and the complexity and cost of inventory management are reduced.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and in particular to a reversing bolt structure and lock. Background Technology

[0002] In the door hardware industry, the stability and security of mechanical lock bodies have always been a focus of attention. As a key component for door and window security, the performance of the lock body directly affects the reliability of the entire door hardware system and the user experience. Currently, the most common mechanical lock bodies on the market are mainly divided into two types: one-way opening and two-way opening, but both have certain limitations.

[0003] The biggest advantage of two-way lock bodies is that there's no need to distinguish between the left and right opening directions of doors and windows, making installation more flexible and convenient. However, this type of lock body has a significant structural design flaw: it provides almost no return force to the handle. This means that the matching handle needs an additional return structure, which not only increases the handle's structural complexity but may also lead to increased production costs and reduced product reliability. In actual use, the complex handle return structure may malfunction, affecting the user's normal experience and potentially even causing safety hazards due to untimely handle return.

[0004] While one-way lock bodies provide stable reset force and ensure proper handle operation, their installation requires differentiation based on the left and right opening directions of the door or window. This necessitates the production of two sets of one-way lock bodies for each direction, significantly increasing inventory management and production costs for manufacturers. Furthermore, to achieve the reversing function of a one-way lock body, some products feature a detachable latch. While this design addresses the reversing issue to some extent, it necessitates user disassembly and reinstallation, increasing installation difficulty and time costs, and potentially leading to installation errors that further compromise the lock's usability and security.

[0005] In summary, existing mechanical lock bodies fail to achieve ideal performance in terms of versatility for opening doors and windows in both left and right directions, installation efficiency, and cost control. Therefore, there is an urgent market need for a new type of mechanical lock body structure that can effectively solve the aforementioned problems of existing lock bodies while ensuring stable and safe use, thereby achieving versatility for opening doors and windows in both left and right directions, improving installation efficiency, and optimizing costs. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a reversing bolt structure and lock.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: In a first aspect, embodiments of the present invention provide a reversing latch structure, comprising: a lock box, a latch assembly, a rotary drive assembly, and a cover plate. The lock box is provided with a latch hole, the cover plate is connected to the lock box to form a mounting cavity, the rotary drive assembly and the latch assembly are disposed in the mounting cavity, and the latch assembly is slidably connected to the latch hole, and the rotary drive assembly is drively connected to the latch assembly. Rotating the rotary drive assembly causes the latch assembly to move along the latch hole toward the rotary drive assembly to form an open state; releasing the rotary drive assembly resets the latch assembly to its initial state. When the latch assembly is in the initial state, pull the latch assembly along the latch hole to move away from the wheel drive assembly until it is disengaged, and rotate the latch assembly to achieve reversal.

[0008] In one specific embodiment, the latch assembly includes a latch kit, an actuating element, a first spring, a second spring, and a guide shaft. One end of the guide shaft passes through the actuating element and is connected to the latch kit. The first spring is sleeved on the guide shaft and abuts against the actuating element. One end of the second spring is sleeved on the guide shaft, and the other end abuts against a blocking seat inside the lock box. The actuating element is throttle-connected to the rotary drive assembly.

[0009] In one specific embodiment, the rear end of the guide shaft is provided with a boss, the first spring abuts against the boss, and the second spring is sleeved on the boss.

[0010] In one specific embodiment, the actuating member is L-shaped and includes a short end and a long end, the first spring abuts against the short end, and the long end is drively connected to the wheel drive assembly.

[0011] In one specific embodiment, the rear end of the long end is provided with a toggle protrusion, which is throttle-connected to the wheel drive assembly.

[0012] In one specific embodiment, the middle section of the long end is further provided with a limiting protrusion, and the lock box is provided with a stop post corresponding to the limiting protrusion.

[0013] In one specific embodiment, the rotary drive assembly includes a rotary wheel, a support member, and a third spring. One end of the support member is connected to the rotary wheel, and the other end is fitted with the third spring. The side of the third spring away from the rotary wheel abuts against a blocking block inside the lock box. The rotary wheel is throttle-connected to the actuating protrusion.

[0014] In one specific embodiment, the rotating wheel is provided with a driving protrusion, which is throttle-connected to the actuating protrusion.

[0015] In one specific embodiment, the latch assembly includes a latch kit, an actuating element, a first spring, a second spring, and a guide shaft. One end of the guide shaft passes through the actuating element and is connected to the latch kit. The first spring is sleeved on the guide shaft and abuts against the actuating element. The second spring is sleeved on the first spring, with one end abutting against the actuating element and the other end abutting against a blocking seat inside the lock box. The actuating element is throttle-connected to the rotary drive assembly.

[0016] The reversing latch structure of this invention has the following advantages compared to the prior art: When the latch assembly is in its initial state, pulling the latch assembly along the latch hole moves it away from the rotating drive assembly until it disengages. Then, rotating the latch assembly achieves reversal. Users do not need to disassemble other parts of the lock body; they can complete the reversal simply by pulling and rotating, greatly simplifying the reversal process. This quick reversal function significantly reduces installation time, especially in scenarios where the opening direction of doors and windows needs to be frequently adjusted, greatly improving installation efficiency and saving labor costs. Furthermore, by directly pulling out the latch assembly to achieve reversal, the same lock body can adapt to both left and right opening methods of doors and windows, eliminating the need for companies to customize locks for doors and windows with different opening directions. By offering multiple lock body models, only one universal lock body needs to be produced to meet market demand, significantly reducing the complexity and cost of inventory management. Furthermore, rotating the rotary drive assembly causes the bolt assembly to move along the bolt hole towards the rotary drive assembly, creating an open state. Releasing the rotary drive assembly resets the bolt assembly to its initial state. The bolt assembly automatically resets after releasing the rotary drive assembly, providing a stable reset force for the handle and ensuring it reliably returns to its initial position during use. Moreover, since the lock body itself provides the reset force, the matching handle does not require an additional complex reset structure, simplifying handle design and manufacturing, reducing handle failure rates, and improving overall product reliability.

[0017] Secondly, embodiments of the present invention provide a lock, including the reversing bolt structure described above.

[0018] The advantages of the lock of this invention compared with the prior art are as follows: By setting a reversing bolt structure, when the bolt assembly is in the initial state, pulling the bolt assembly along the bolt hole moves it away from the rotating wheel drive assembly until it disengages. Then, rotating the bolt assembly achieves reversal. Users do not need to disassemble other parts of the lock body; they can complete the reversal simply by pulling and rotating, greatly simplifying the reversal process. This quick reversal function significantly reduces installation time, especially in scenarios where the opening direction of doors and windows needs to be frequently adjusted, which can greatly improve installation efficiency and save labor costs. At the same time, by directly pulling out the bolt assembly to achieve reversal, the same lock body can adapt to both left and right opening methods of doors and windows, eliminating the need for companies to provide different opening methods for different opening methods. The system offers a variety of lock body models for doors and windows, but only requires the production of a single universal lock body to meet market demand, significantly reducing the complexity and cost of inventory management. Furthermore, rotating the rotary drive assembly causes the bolt assembly to move along the bolt hole towards the rotary drive assembly, creating an open state. Releasing the rotary drive assembly resets the bolt assembly to its initial state. The bolt assembly automatically resets after releasing the rotary drive assembly, providing a stable reset force for the handle and ensuring it reliably returns to its initial position during use. Moreover, since the lock body itself provides the reset force, the matching handle does not require an additional complex reset structure, simplifying handle design and manufacturing, reducing handle failure rates, and improving overall product reliability.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A three-dimensional schematic diagram of the reversing latch structure provided by the present invention in its initial state; Figure 2 A schematic diagram of the internal structure of a first embodiment of the reversing latch structure provided by the present invention in its initial state; Figure 3 A schematic diagram of the internal structure of a first embodiment of the reversing latch structure provided by the present invention in the open state; Figure 4 A schematic diagram of the internal structure of the reversing latch structure of the present invention in a disengaged state, according to Embodiment 1 of the present invention. Figure 5 This is a schematic diagram of the internal structure of the reversing latch structure after turning, according to an embodiment of the present invention. Figure 6 An exploded view of a first embodiment of the reversing latch structure provided by the present invention; Figure 7 This is an exploded view of the latch assembly in Embodiment 1 of the reversing latch structure provided by the present invention; Figure 8 This is a schematic diagram of the actuating component in Embodiment 1 of the reversing latch structure provided by the present invention; Figure 9 This is a schematic diagram of the internal structure of the lock box in Embodiment 1 of the reversing latch structure provided by the present invention; Figure 10 This is a schematic diagram of the rotary drive assembly in Embodiment 1 of the reversing latch structure provided by the present invention; Figure 11 A schematic diagram of the internal structure of Embodiment 2 of the reversing latch structure provided by the present invention in its initial state; Figure 12 This is an exploded view of a second embodiment of the reversing latch structure provided by the present invention.

[0022] Figure label: Lock box 10, lock tongue hole 11, blocking seat 12, stop post 13, blocking block 14, lock tongue assembly 20, inclined tongue piece 21, inclined tongue frame 22, toggle piece 23, short end 231, long end 232, toggle protrusion 2321, limit protrusion 2322, first spring 24, second spring 25, guide shaft 26, boss 261, rotary wheel drive assembly 30, rotary wheel piece 31, drive protrusion 311, support piece 32, third spring 33, cover plate 40. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0030] See Figures 1 to 12 As shown, the present invention discloses a specific embodiment of a reversing latch structure, including: a lock box 10, a latch assembly 20, a rotary drive assembly 30, and a cover plate 40. The lock box 10 is provided with a latch hole 11. The cover plate 40 is connected to the lock box 10 to form a mounting cavity. The rotary drive assembly 30 and the latch assembly 20 are disposed in the mounting cavity, and the latch assembly 20 is slidably connected to the latch hole 11. The rotary drive assembly 30 is drively connected to the latch assembly 20. Rotating the wheel drive assembly 30 causes the latch assembly 20 to move along the latch hole 11 toward the wheel drive assembly 30 to form an open state; releasing the wheel drive assembly 30 resets the latch assembly 20 to its initial state. When the latch assembly 20 is in the initial state, pull the latch assembly 20 along the latch hole 11 to move away from the wheel drive assembly 30 until it is disengaged, and rotate the latch assembly 20 to achieve reversal.

[0031] Specifically, the lock housing 10 is provided with a bolt hole 11 for accommodating the sliding of the bolt assembly 20. The shape and size of the lock housing 10 are customized according to the overall design requirements of the lock body, typically a cuboid or similar shape, to ensure a reasonable layout of the internal components. The cover plate 40 is tightly connected to the lock housing 10 by screws, snaps, or other mechanical connections, forming a sealed mounting cavity. The mounting cavity provides a stable mounting environment for the rotary drive assembly 30 and the bolt assembly 20, ensuring that the components are not disturbed by external factors during operation.

[0032] The latch assembly 20 is a key component for enabling the lock body to open and close. It includes the latch body and a sliding mechanism connected to it. The latch assembly 20 is slidably connected to the latch hole 11 via its sliding mechanism, allowing it to move back and forth in a straight line within the latch hole 11. The design of the sliding mechanism ensures the smoothness and stability of the latch assembly 20 during movement, reducing friction and wear. In its initial state, the latch assembly 20 extends out of the latch hole 11 to lock doors and windows; when the latch assembly 20 is pulled to the disengaged state, the latch completely disengages from the latch hole 11, providing space for reversing operations.

[0033] The rotary drive assembly 30 is a power component used to drive the movement of the latch assembly 20, and it includes a rotary wheel and a transmission gear. When the user rotates the rotary wheel, the rotary wheel transmits power to the latch assembly 20 through the transmission gear, causing the latch assembly 20 to move along the latch hole 11 toward the rotary drive assembly 30, thereby opening the lock body. The design of the transmission gear ensures the accuracy and reliability of power transmission, allowing the latch assembly 20 to move precisely according to the user's operating intention. When the user releases the rotary drive assembly 30, the latch assembly 20 automatically resets to its initial state through a built-in return spring or other reset mechanism, ensuring that the lock body can reliably lock the door and window.

[0034] When the latch assembly 20 is in its initial state, the user can perform the reversing operation through the following steps: The user holds the latch assembly 20 and pulls it away from the rotating drive assembly 30 along the direction of the latch hole 11, moving the latch assembly 20 from its initial state to its disengaged state. At this time, the latch is completely disengaged from the latch hole 11 and completely separated from the side wall of the latch hole 11, providing space for subsequent rotation operations. With the latch assembly 20 in the disengaged state, the user rotates the latch assembly 20 180 degrees to achieve the reversing of the latch assembly 20. The entire reversing process is simple and quick. The user does not need to disassemble other parts of the lock body; the reversing of the lock body can be achieved simply by pulling and rotating, greatly improving installation efficiency.

[0035] In other words, when the latch assembly 20 is in its initial state, pulling the latch assembly 20 along the latch hole 11 towards the side away from the rotary drive assembly 30 until it disengages, and then rotating the latch assembly 20, achieves the reversal. Users do not need to disassemble other parts of the lock body; they can complete the reversal simply by pulling and rotating, greatly simplifying the reversal process. This quick reversal function significantly reduces installation time, especially in scenarios where frequent adjustments to the opening direction of doors and windows are required, greatly improving installation efficiency and saving labor costs. Simultaneously, by directly pulling out the latch assembly 20 to achieve the reversal, the same lock body can adapt to both left and right opening methods of doors and windows. Businesses do not need to prepare multiple lock body models for doors and windows with different opening directions; they only need to... Producing a single, universal lock body can meet market demand, significantly reducing the complexity and cost of inventory management. Furthermore, rotating the rotary drive assembly 30 drives the bolt assembly 20 to move along the bolt hole 11 towards the rotary drive assembly 30, forming an open state. Releasing the rotary drive assembly 30 resets the bolt assembly 20 to its initial state. The bolt assembly 20 automatically resets after releasing the rotary drive assembly 30, providing a stable reset force for the handle and ensuring it reliably returns to its initial position during use. Moreover, since the lock body itself provides the reset force, the matching handle does not require an additional complex reset structure, thus simplifying handle design and manufacturing, reducing handle failure rates, and improving overall product reliability.

[0036] Example 1: See Figures 2 to 9 As shown, in one embodiment, the latch assembly 20 includes a latch kit (the latch kit includes a latch member 21 and a latch frame 22, wherein the latch member 21 and the latch frame 22 can be a separate structure or an integrated structure), an actuating member 23, a first spring 24, a second spring 25, and a guide shaft 26. The latch member 21 is connected to the latch frame 22. One end of the guide shaft 26 passes through the actuating member 23 and is connected to the latch frame 22. The first spring 24 is sleeved on the guide shaft 26 and abuts against the actuating member 23. One end of the second spring 25 is sleeved on the guide shaft 26, and the other end abuts against the blocking seat 12 inside the lock box 10. The actuating member 23 is throttle-connected to the rotary drive assembly 30.

[0037] Specifically, the latch bolt 21 is the exposed part of the latch assembly 20, used to contact the door and window lock points to realize the locking function of the lock body. The front end of the latch bolt 21 is designed with a bevel, which facilitates automatic retraction into the lock box 10 when the door is closed due to the force of the bevel. The latch bolt frame 22 is the supporting structure of the latch bolt 21, used to fix the latch bolt 21 and provide a stable movement path. The latch bolt 21 is connected to the latch bolt frame 22, and the two move together. The actuating component 23 is a key component connecting the rotary drive assembly 30 and the latch assembly 20, used to transmit the power of the rotary drive assembly 30 to drive the latch assembly 20 to move along the latch bolt hole 11. The guide shaft 26 plays a guiding and connecting role. One end of it passes through the actuating component 23 and is connected to the latch bolt frame 22 to ensure the linear movement of the latch bolt 21. The first spring 24 is sleeved on the guide shaft 26, and one end of it abuts against the actuating component 23. The function of the first spring 24 is to provide a restoring force after reversing. One end of the second spring 25 is sleeved on the guide shaft 26, and the other end abuts against the stop seat 12 inside the lock box 10. The function of the second spring 25 is to provide a restoring force during the opening and closing of the lock body.

[0038] When the user closes the door or window, the inclined surface of the latch 21 is subjected to the external force of the door or window locking point. The latch 21 drives the latch frame 22 and the guide shaft 26 to move inward to the lock box 10, and the guide shaft 26 compresses the second spring 25. When the external force disappears, the second spring 25 provides elastic force, pushing the guide shaft 26 and the latch 21 to move outward to the lock box 10, so that the latch 21 extends out of the latch hole 11, completing the reset of the lock body and realizing the locking function.

[0039] When the user rotates the rotary drive assembly 30, the rotary drive assembly 30 drives the actuating element 23 to move along the latch hole 11 towards the rotary drive assembly 30 via the transmission gear. The movement of the actuating element 23 is transmitted to the latch frame 22 via the guide shaft 26, causing the latch element 21 to move along the latch hole 11 towards the inside of the lock box 10. At this time, the second spring 25 is in a compressed state. When the user releases the rotary drive assembly 30, the second spring 25 provides elastic force, pushing the guide shaft 26 and the latch element 21 towards the outside of the lock box 10, so that the latch assembly 20 resets and returns to its initial state.

[0040] When reversing is required, the user first pulls out the latch 21, disengaging it and the latch frame 22 from the latch hole 11. At this time, the guide shaft 26 compresses the first spring 24, which abuts against the actuating member 23, providing elasticity for subsequent reset. After the latch 21 disengages from the latch hole 11, the user rotates it 180 degrees, completing the reversing operation. Upon successful reversal, the user releases the latch 21, and the first spring 24 provides elasticity, pushing the guide shaft 26 and the latch 21 towards the inside of the lock box 10, returning them to their initial state, completing the entire reversing process.

[0041] In other words, users can easily change the direction of the latch assembly 20 by simply pulling and rotating it, without disassembling other parts of the lock body. This greatly simplifies the reversing process, allowing installers to quickly adapt to different door and window opening directions, improving installation efficiency, especially when installing doors and windows in batches, saving significant time and labor costs. Simultaneously, the simple and intuitive reversing operation reduces installation errors caused by improper operation, improves installation quality, and reduces safety hazards caused by installation problems. Furthermore, through the coordinated action of the first spring 24 and the second spring 25, the latch assembly 20 can reliably reset in different states. The second spring 25 provides the main reset force during the opening and closing of the lock body, ensuring that the latch 21 can accurately extend or retract into the latch hole 11; the first spring 24 provides the reset force after reversing, ensuring that the latch 21 returns to its initial position. This dual-spring design improves the reliability of the latch assembly 20, reduces usage problems caused by poor reset, and enhances the overall performance of the lock body.

[0042] See Figures 6 to 7 As shown, in one embodiment, the rear end of the guide shaft 26 is provided with a boss 261, the first spring 24 abuts against the boss 261, and the second spring 25 is sleeved on the boss 261.

[0043] Specifically, the guide shaft 26 is a slender metal rod used to connect the latch frame 22 and the actuating element 23, and to ensure the linear movement of the latch assembly 20. A boss 261 is provided at the rear end of the guide shaft 26. The diameter of the boss 261 is larger than the diameter of the main body of the guide shaft 26, forming a stepped structure. The boss 261 is located at the rear end of the guide shaft 26, and its main function is to provide a contact point for the first spring 24 and the second spring 25, and to limit the movement of the first spring 24. The boss 261 is typically cylindrical, and its diameter and length are optimized according to the size of the spring and the overall design of the lock body. The first spring 24 is sleeved on the guide shaft 26, with one end abutting against the boss 261 and the other end abutting against the actuating element 23. This design ensures that the first spring 24 has a stable mounting position on the guide shaft 26 and can provide reliable restoring force during the reversing operation. One end of the second spring 25 is sleeved on the boss 261, and the other end abuts against the stop seat 12 inside the lock box 10. The second spring 25 is fixed to the guide shaft 26 by the boss 261, ensuring that it can provide a stable restoring force during the opening and closing of the lock body.

[0044] When the user closes the door or window, the inclined surface of the latch 21 is subjected to the external force of the door or window locking point. The latch 21 drives the latch frame 22 and the guide shaft 26 to move inward toward the lock box 10, and the guide shaft 26 compresses the second spring 25. At this time, the elastic force of the second spring 25 is transmitted to the guide shaft 26 through the boss 261, so that the guide shaft 26 and the latch 21 can move smoothly. When the external force disappears, the second spring 25 provides elastic force, pushing the guide shaft 26 and the latch 21 to move outward toward the lock box 10, so that the latch 21 extends out of the latch hole 11, completing the reset of the lock body and realizing the locking function.

[0045] When the user rotates the rotary drive assembly 30, the rotary drive assembly 30 drives the actuating element 23 to move along the latch hole 11 towards the rotary drive assembly 30 via the transmission gear. The movement of the actuating element 23 is transmitted to the latch frame 22 via the guide shaft 26, causing the latch element 21 to move along the latch hole 11 towards the inside of the lock box 10. At this time, the second spring 25 is in a compressed state. When the user releases the rotary drive assembly 30, the second spring 25 provides elastic force, pushing the guide shaft 26 and the latch element 21 towards the outside of the lock box 10, so that the latch assembly 20 resets and returns to its initial state.

[0046] When reversing is required, the user first pulls out the latch 21, disengaging it and the latch frame 22 from the latch hole 11. At this time, the guide shaft 26 compresses the first spring 24, which presses against the boss 261, providing elastic force for subsequent reset. After the latch 21 disengages from the latch hole 11, the user rotates it 180 degrees to complete the reversing operation. After successful reversal, the user releases the latch 21, and the first spring 24 provides elastic force, pushing the guide shaft 26 and the latch 21 towards the inside of the lock box 10, returning them to their initial state.

[0047] See Figures 2 to 8 As shown, in one embodiment, the actuating member 23 is L-shaped and includes a short end 231 and a long end 232. The first spring 24 abuts against the short end 231, and the long end 232 is throttle-connected to the wheel drive assembly 30.

[0048] Specifically, the short end 231 is a shorter branch of the actuating element 23, and its main function is to interact with the guide shaft 26, the first spring 24, and the second spring 25. The guide shaft 26 passes through the short end 231 and connects to the latch frame 22 to ensure the linear movement of the latch assembly 20. The long end 232 is another longer branch of the actuating element 23, and its main function is to be connected to the rotary drive assembly 30 for transmission, transmitting the power of the rotary drive assembly 30 to the latch assembly 20.

[0049] In other words, the L-shaped design of the actuating element 23 allows its short end 231 and long end 232 to perform different functions. The short end 231 interacts with the guide shaft 26, the first spring 24, and the second spring 25 to ensure the linear movement of the latch assembly 20; the long end 232 is connected to the rotary drive assembly 30 to transmit power. This design allows the actuating element 23 to achieve multiple functions within a limited space, improving the compactness of the structure. Simultaneously, the L-shaped design of the actuating element 23 makes the latch assembly 20 move more smoothly. The long end 232's connection to the rotary drive assembly 30 enables efficient transmission of power from the rotary drive assembly 30. This design allows users to more easily control the movement of the latch assembly 20 when operating the rotary drive assembly 30, improving operational convenience and efficiency.

[0050] See Figures 7 to 8 As shown, in one embodiment, the rear end of the long end 232 is provided with a toggle protrusion 2321, which is throttle-connected to the wheel drive assembly 30.

[0051] Specifically, the actuating protrusion 2321 abuts against the transmission gear of the rotary drive assembly 30, converting the rotational motion of the rotary drive assembly 30 into the linear motion of the actuating member 23. When the user rotates the rotary wheel, the transmission gear of the rotary drive assembly 30 abuts against the actuating protrusion 2321, causing the long end 232 of the actuating member 23 to move inward toward the lock housing 10. This design ensures efficient power transmission, allowing the user to control the movement of the latch assembly 20 through a simple rotational operation.

[0052] In other words, the design of the actuating protrusion 2321 allows the rotary drive assembly 30 to be precisely connected to the actuating element 23. This design ensures efficient power transmission, allowing users to easily control the movement of the bolt assembly 20 when operating the rotary wheel, thus improving operational convenience and efficiency. Simultaneously, the engagement of the actuating protrusion 2321 with the transmission gear of the rotary drive assembly 30 reduces energy loss during power transmission, resulting in smoother opening and closing of the lock body and improving its overall performance.

[0053] See Figures 7 to 8 As shown, in one embodiment, the middle section of the long end 232 is further provided with a limiting protrusion 2322, and the lock box 10 is provided with a stop post 13 corresponding to the limiting protrusion 2322.

[0054] Specifically, when the second spring 25 provides elastic force to move the long end 232 of the actuating member 23 outward from the lock box 10, the actuating member 23 moves towards the bolt hole 11. As the actuating member 23 moves, the limiting protrusion 2322 gradually approaches the stop post 13. When the limiting protrusion 2322 abuts against the stop post 13, the stop post 13 applies a reverse force to the limiting protrusion 2322, which acts as a buffer to reduce the impact force of the actuating member 23. This buffering effect can effectively prevent hard impact between the actuating member 23 and the lock box 10, reduce abnormal noise caused by impact, and improve the user experience of the lock body. At the same time, the abutment between the limiting protrusion 2322 and the stop post 13 also acts as a limit to prevent the actuating member 23 from moving excessively, ensuring that the bolt assembly 20 does not disengage from the lock box 10 and ensuring the normal function of the lock body.

[0055] When the user rotates the rotary drive assembly 30, the rotary drive assembly 30 drives the long end 232 of the actuating member 23 to move inward toward the lock box 10 via the actuating protrusion 2321. During this process, the distance between the limiting protrusion 2322 and the stop post 13 gradually increases, allowing the actuating member 23 to move smoothly inward toward the lock box 10. When the user releases the rotary drive assembly 30, the second spring 25 provides elastic force to reset the actuating member 23, and the limiting protrusion 2322 abuts against the stop post 13 again, serving as a buffer and limiting function.

[0056] See Figures 2 to 10 As shown, in one embodiment, the rotary drive assembly 30 includes a rotary wheel 31, a support 32, and a third spring 33. One end of the support 32 is connected to the rotary wheel 31, and the other end is fitted with the third spring 33. The side of the third spring 33 away from the rotary wheel 31 abuts against the blocking block 14 inside the lock box 10. The rotary wheel 31 is throttle-connected to the actuating protrusion 2321.

[0057] Specifically, the lock box 10 has multiple mounting posts for fixing the cover plate 40; the cover plate 40 has through holes corresponding to the position of the rotating wheel 31, so that the handle can pass through the through holes and connect to the rotating wheel 31, and turning the handle will drive the rotating wheel 31 to rotate. The support member 32 is an intermediate component connecting the rotating wheel 31 and the third spring 33, which plays the role of transmitting power and providing support. The support member 32 ensures that the movement of the rotating wheel 31 can be smoothly transmitted to the third spring 33. The function of the third spring 33 is to provide a restoring force for the rotating wheel 31 and the support member 32, ensuring that the rotating wheel 31 can automatically return to its initial position after the user releases the handle. The blocking block 14 is a fixed structure inside the lock box 10, which is used to provide a stable abutment point for the third spring 33.

[0058] In other words, when the user turns the handle, the handle drives the rotating wheel 31 to rotate. The rotating wheel 31 drives the actuating protrusion 2321 to move. During the movement, the support 32 moves towards the third spring 33 and compresses the third spring 33. The actuating protrusion 2321 drives the long end 232 of the actuating member 23 to move inward toward the lock box 10, and then drives the guide shaft 26 and the latch frame 22 to move through the short end 231, causing the latch member 21 to retract into the lock box 10, completing the opening operation. During this process, the second spring 25 is compressed, providing elasticity for subsequent reset. When the user releases the handle, the third spring 33 provides elasticity, pushing the support 32 and the rotating wheel 31 back to their initial positions, resetting the handle. At the same time, the second spring 25 provides elasticity, pushing the long end 232 of the actuating member 23 to move outward toward the lock box 10, causing the latch member 21 to extend out of the latch hole 11, completing the reset of the latch assembly 20.

[0059] See Figure 6 and Figure 10 As shown, in one embodiment, the rotating wheel 31 is provided with a driving protrusion 311, which is throttle-connected to the actuating protrusion 2321.

[0060] Specifically, the main function of the drive protrusion 311 is to connect with the actuating protrusion 2321 to convert the rotational motion of the rotating wheel 31 into the linear motion of the actuating member 23, thereby driving the movement of the latch assembly 20. In other words, the close cooperation between the drive protrusion 311 and the actuating protrusion 2321 ensures efficient power transmission from the rotating wheel 31 to the actuating member 23. This design allows users to easily control the movement of the latch assembly 20 when operating the handle, improving operational convenience and efficiency.

[0061] Example 2: See Figure 11 and Figure 12 As shown, in one embodiment, the latch assembly 20 includes a latch kit (the latch kit includes a latch member 21 and a latch frame 22, wherein the latch member 21 and the latch frame 22 can be a separate structure or an integrated structure), an actuating member 23, a first spring 24, a second spring 25, and a guide shaft 26. The latch member 21 is connected to the latch frame 22. One end of the guide shaft 26 passes through the actuating member 23 and is connected to the latch frame 22. The first spring 24 is sleeved on the guide shaft 26 and abuts against the actuating member 23. The second spring 25 is sleeved on the first spring 24, and one end of the second spring 25 abuts against the actuating member 23, and the other end abuts against the blocking seat 12 inside the lock box 10. The actuating member 23 is throttle-connected to the rotary drive assembly 30.

[0062] Specifically, the difference between Embodiment 2 and Embodiment 1 is that the second spring 25 is sleeved on the first spring 24. In the initial state, the oblique tongue 21 extends out of the lock tongue hole 11, and the lock body is in the locked state. One end of the second spring 25 abuts against the actuating member 23, and the other end abuts against the blocking seat 12 inside the lock box 10.

[0063] When the user closes the door or window, the inclined surface of the latch 21 is subjected to external force from the door or window locking point. The latch 21 drives the latch frame 22 and guide shaft 26 to move inward toward the lock box 10, and the actuating member 23 compresses the second spring 25. When the external force disappears, the second spring 25 provides elastic force to the actuating member 23, driving the guide shaft 26 and the latch 21 to move outward toward the lock box 10, causing the latch 21 to extend out of the latch hole 11, completing the lock body's reset and realizing the locking function.

[0064] When the user rotates the rotary drive assembly 30, the rotary drive assembly 30 drives the actuating member 23 to move towards one side of the rotary drive assembly 30 via the rotary wheel member 31. The movement of the actuating member 23 is transmitted to the latch frame 22, causing the latch member 21 to move along the latch hole 11 towards the inside of the lock box 10. At this time, the actuating member 23 compresses the second spring 25. When the user releases the rotary drive assembly 30, the second spring 25 provides elastic force to the actuating member 23, driving the guide shaft 26 and the latch member 21 to move outward of the lock box 10, so that the latch assembly 20 resets and returns to its initial state.

[0065] When reversing is required, the user first pulls out the latch 21, disengaging it and the latch frame 22 from the latch hole 11. At this time, the guide shaft 26 compresses the first spring 24, which presses against the boss 261, providing elastic force for subsequent reset. After the latch 21 disengages from the latch hole 11, the user rotates it 180 degrees to complete the reversing operation. After successful reversal, the user releases the latch 21, and the first spring 24 provides elastic force, pushing the guide shaft 26 and the latch 21 towards the inside of the lock box 10, returning them to their initial state.

[0066] The present invention also discloses a lock, including the reversing bolt structure as described above.

[0067] Specifically, by setting a reversing latch structure, when the latch assembly 20 is in its initial state, pulling the latch assembly 20 along the latch hole 11 towards the side away from the rotary drive assembly 30 until it disengages, and then rotating the latch assembly 20, the user can achieve reversal without disassembling other parts of the lock body. Reversal can be completed simply by pulling and rotating, greatly simplifying the reversal process. This quick reversal function significantly reduces installation time, especially in scenarios where frequent adjustments to the opening direction of doors and windows are required, significantly improving installation efficiency and saving labor costs. Simultaneously, by directly pulling out the latch assembly 20 to achieve reversal, the same lock body can adapt to both left and right opening methods of doors and windows, eliminating the need for companies to prepare multiple models for doors and windows with different opening directions. The lock body only requires the production of one universal lock body to meet market demand, greatly reducing the complexity and cost of inventory management. Furthermore, rotating the rotary drive assembly 30 drives the bolt assembly 20 to move along the bolt hole 11 towards the rotary drive assembly 30, forming an open state. Releasing the rotary drive assembly 30 resets the bolt assembly 20 to its initial state. The bolt assembly 20 automatically resets after releasing the rotary drive assembly 30, providing a stable reset force for the handle and ensuring that the handle reliably returns to its initial position during use. Moreover, since the lock body itself provides the reset force, the matching handle does not require an additional complex reset structure, thus simplifying the handle's design and manufacturing, reducing the handle's failure rate, and improving the overall reliability of the product.

[0068] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present technical solution are within the protection scope of the present invention.

Claims

1. A reversing latch structure, characterized in that, include: The lock box includes a lock tongue assembly, a rotary drive assembly, and a cover plate. The lock box has a lock tongue hole. The cover plate is connected to the lock box to form a mounting cavity. The rotary drive assembly and the lock tongue assembly are disposed in the mounting cavity, and the lock tongue assembly is slidably connected to the lock tongue hole. The rotary drive assembly is driveably connected to the lock tongue assembly. Rotating the rotary drive assembly causes the latch assembly to move along the latch hole toward the rotary drive assembly to form an open state; releasing the rotary drive assembly resets the latch assembly to its initial state. When the latch assembly is in the initial state, pull the latch assembly along the latch hole to move away from the wheel drive assembly until it is disengaged, and rotate the latch assembly to achieve reversal.

2. The reversing latch structure according to claim 1, characterized in that, The latch assembly includes a latch kit, a lever, a first spring, a second spring, and a guide shaft. One end of the guide shaft passes through the lever and is connected to the latch kit. The first spring is sleeved on the guide shaft and abuts against the lever. One end of the second spring is sleeved on the guide shaft, and the other end abuts against a blocking seat inside the lock box. The lever is throttle-connected to the rotary drive assembly.

3. The reversing latch structure according to claim 2, characterized in that, The rear end of the guide shaft is provided with a boss, the first spring abuts against the boss, and the second spring is sleeved on the boss.

4. The reversing latch structure according to claim 3, characterized in that, The actuating element is L-shaped and includes a short end and a long end. The first spring abuts against the short end, and the long end is drively connected to the wheel drive assembly.

5. The reversing latch structure according to claim 4, characterized in that, The rear end of the long end is provided with a toggle protrusion, which is throttle-connected to the wheel drive assembly.

6. The reversing latch structure according to claim 5, characterized in that, The middle section of the long end is also provided with a limiting protrusion, and the lock box is provided with a stop post corresponding to the limiting protrusion.

7. The reversing latch structure according to claim 5, characterized in that, The rotary drive assembly includes a rotary wheel, a support member, and a third spring. One end of the support member is connected to the rotary wheel, and the other end is fitted with the third spring. The side of the third spring away from the rotary wheel abuts against a blocking block inside the lock box. The rotary wheel is drivenly connected to the actuating protrusion.

8. The reversing latch structure according to claim 7, characterized in that, The rotating wheel is provided with a driving protrusion, which is throttle-connected to the actuating protrusion.

9. The reversing latch structure according to claim 1, characterized in that, The latch assembly includes a latch kit, a lever, a first spring, a second spring, and a guide shaft. One end of the guide shaft passes through the lever and is connected to the latch kit. The first spring is sleeved on the guide shaft and abuts against the lever. The second spring is sleeved on the first spring, with one end abutting against the lever and the other end abutting against a blocking seat inside the lock box. The lever is throttle-connected to the rotary drive assembly.

10. A lock, characterized in that, Includes the reversing latch structure as described in any one of claims 1-9.

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