Lock structure and hinged door system comprising same

Abstract

The utility model discloses a lock structure and a hinged door system comprising the same. The lock structure comprises a lock box provided with a lock groove; the lock tongue can move up and down between a locking position and an unlocking position, the lock tongue extends out and enters the lock groove when the lock tongue is located at the locking position, and the lock tongue retracts inwards and is separated from the lock groove when the lock tongue is located at the unlocking position; a second seat body; the second lock rod is hinged to the second seat body, the second lock rod is provided with a clamping hook part, and the clamping hook part can move between a first position and a second position relative to the spring bolt; when the clamping hook part is located at the second position, the spring bolt can move to the locking position so as to be clamped and fixed with the clamping hook part; the clamping hook part is further provided with a guide face, when the clamping hook part is located at the first position and the spring bolt is located at the locking position, the guide face and the spring bolt abut against each other, and when the clamping hook part continues to move towards the second position, the spring bolt can abut against the guide face so that the second lock rod can rotate relative to the second base till the guide face crosses the spring bolt. And then the second lock rod can reset and rotate to enable the clamping hook part to reach the second position and be clamped with the spring bolt.

Description

Technical Field

[0001] This utility model relates to the field of door and window hardware accessories, and in particular to lock structure and double door system including the same. Background Technology

[0002] A typical double-door system includes a lock structure, a first track, a second track, a first door / window sash, and a second door / window sash. The first door / window sash slides on the first track, and the second door / window sash slides on the second track. The extension directions of the first and second tracks can be parallel or at an angle to each other. The first and second door / window sashes can slide horizontally independently on their respective tracks. The first and second door / window sashes can move closer to each other to the closed position to achieve a fully closed door, and they can also move further apart to the open position to achieve a fully open door. The lock structure can simultaneously lock the first and second door / window sashes in the closed position.

[0003] A typical lock structure includes a lock box, a main lock body, and a secondary lock body. The lock box has a lock groove and is mounted on a first track. The main lock body is located on the first door / window sash and can move horizontally synchronously with the first door / window sash. The bolt of the main lock body can move up and down between an extended state and a retracted state. The secondary lock body is located on the second door / window sash and can move horizontally synchronously with the second door / window sash. When the first and second door / window sashes approach each other to the closed position, the bolt of the main lock body can switch to the extended state, enter the lock groove, and engage with the locking rod of the secondary lock body, thereby simultaneously locking the first and second door / window sashes.

[0004] However, if the second door or window sash is not moved into place (i.e. not fully closed), and the bolt is prematurely switched to the extended state and enters the lock groove due to misoperation, the second door or window sash will continue to move towards the closed position, causing the locking rod of the secondary lock body and the bolt to collide with each other. This can easily cause mechanical damage and obvious noise, and it is difficult to lock the first and second door or window sashes at the same time. Utility Model Content

[0005] In order to overcome at least one of the defects described in the prior art, the present invention provides a lock structure and a double door system including the lock structure, which aims to solve the problem that when the second door or window sash is not moved into place and the bolt extends in advance, the lock rod of the secondary lock body collides with the bolt of the main lock body, causing mechanical damage and noise, and it is difficult to lock the first and second door or window sashes at the same time.

[0006] The technical solution adopted by this utility model to solve its problem is:

[0007] A lock structure for a double-door system includes: a lock box for mounting on a track, the lock box having a lock groove; a bolt for vertically moving on a first door / window sash, the bolt being movable between a locked position and an unlocked position; in the locked position, the bolt extends and enters the lock groove; in the unlocked position, the bolt retracts and separates from the lock groove; a second seat for mounting on a second door / window sash; and a second locking rod hinged to the second seat, the second locking rod having a hook portion that can move relative to the bolt between a first position and a second position. The latch can move to a locked position when the latch is in the second position, and engage with the latch. The latch also has a guide surface. When the latch is in the first position and the latch is in the locked position, the guide surface and the latch abut against each other. When the latch continues to move toward the second position, the latch can push against the guide surface to rotate the second locking rod relative to the second seat until the guide surface passes the latch. Then the second locking rod can be reset and rotated to make the latch reach the second position and engage with the latch.

[0008] According to some embodiments of the present invention, the lock structure further includes a second elastic element, which is disposed between the second seat and the second lock rod. The second elastic element is configured to drive the second lock rod to reset and rotate so that the hook portion reaches the second position.

[0009] According to some embodiments of the present invention, the second seat moves linearly in the horizontal direction, and the projection of the guide surface onto the horizontal plane is inclined to the moving direction of the second seat.

[0010] According to some embodiments of the present invention, the second locking rod further has a rod portion, the hook portion is connected to the rod portion, the hook portion has a groove, the groove is formed at the junction of the hook portion and the rod portion, the guide surface and the groove are arranged opposite to each other, and when the hook portion is in the second position and the locking tongue is in the locked position, the groove engages with the locking tongue.

[0011] According to some embodiments of the present invention, the guide surface includes a first arc surface and a guide slope. The first arc surface is convex and connected between the slot and the guide slope. When the guide surface and the locking tongue abut against each other, the locking tongue contacts the guide slope and the first arc surface in sequence.

[0012] According to some embodiments of the present invention, the guide surface further includes a second arc surface, the second arc surface, the guide inclined surface and the first arc surface are connected in sequence, and the second arc surface is connected to the side of the guide inclined surface away from the slot.

[0013] According to some embodiments of this utility model, the lock box is provided with a guide surface; when the projection of the bolt onto the horizontal plane and the projection of the guide surface onto the horizontal plane overlap at least partially, the bolt in the extended state and the guide surface abut against each other. When the bolt continues to move toward the lock groove, the guide surface can push the bolt in the extended state to retract the bolt until the bolt passes the guide surface, and then the bolt can re-extend and enter the lock groove.

[0014] According to some embodiments of the present invention, the lock structure further includes a first base, which is used to be disposed on a first door or window sash. The latch is movably disposed on the first base, and the latch can move up and down relative to the first base between a telescopic state and a retracted state. The first base can move linearly in the horizontal direction, and the projection of the guide surface onto a first plane is inclined to the moving direction of the first base. The first plane is perpendicular to the horizontal plane and parallel to the moving direction of the first base.

[0015] According to some embodiments of the present invention, the lock structure further includes a first elastic element, which is connected to the latch in a transmission manner; when the latch needs to extend, the first elastic element can elastically drive the latch to eventually move to the extended state; when the latch needs to retract, the first elastic element can elastically drive the latch to eventually move to the retracted state.

[0016] In addition, this utility model also discloses a double door system, including the lock structure as described above, and further including a first track, a second track, a first door / window sash, and a second door / window sash. The first door / window sash is slidably disposed on the first track, the second door / window sash is slidably disposed on the second track, the lock box is disposed on the first track, the lock tongue is movably disposed on the first door / window sash and can move synchronously with the first door / window sash in the horizontal direction, the second seat is disposed on the second door / window sash and can move synchronously with the second door / window sash in the horizontal direction, and the included angle between the extending directions of the first track and the second track is between 90 and 180 degrees.

[0017] In summary, the lock structure and the double-door system including it provided by this utility model have at least the following technical effects:

[0018] When the first and second door / window sashes move toward the closed position, if the second door / window sash is not fully closed and the latch extends prematurely into the lock slot, as the second door / window sash continues to move, the guide surface of the latch will first contact the latch. The latch pushes the guide surface, which converts the impact force into rotational displacement, causing the second lock rod to rotate and drive the latch to rotate. When the latch rotates to the critical position, the guide surface disengages from the latch, and the latch can rotate back to engage with the latch, thus simultaneously locking the first and second door / window sashes in the closed position. In this way, if the latch extends prematurely due to misoperation, the guide surface can achieve dynamic avoidance and guide the latch and the latch to make contact, eliminating rigid collision between the latch and the latch, avoiding metal collision noise, and even if the latch extends prematurely due to misoperation, the first and second door / window sashes can still be locked simultaneously. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the double-door system (both door and window sashes are moved to the closed position) according to Embodiment 1 of this utility model;

[0020] Figure 2 This is an exploded structural diagram of the double-door system according to Embodiment 1 of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the lock structure of Embodiment 1 of this utility model (when the door is closed normally, the lock tongue engages with the hook and the lock groove simultaneously);

[0022] Figure 4 This is a three-dimensional structural diagram of the lock structure of Embodiment 1 of this utility model (the guide surface and the lock tongue abut against each other when the lock tongue is extended in advance);

[0023] Figure 5 This is a three-dimensional structural diagram of the secondary lock body according to Embodiment 1 of this utility model;

[0024] Figure 6 This is an exploded view of the secondary lock body according to Embodiment 1 of this utility model;

[0025] Figure 7 This is a schematic diagram of the cooperation structure of the lock box, main lock body and handle in Embodiment 1 of this utility model;

[0026] Figure 8 This is a three-dimensional structural diagram of the lock box according to Embodiment 1 of this utility model;

[0027] Figure 9 This is a three-dimensional structural diagram of the double-door system (both door and window sashes are moved to the closed position) according to Embodiment 2 of this utility model;

[0028] Figure 10This is an exploded structural diagram of the double-door system according to Embodiment 2 of this utility model;

[0029] Figure 11 This is a schematic diagram of the cooperation structure between the main lock body and the auxiliary lock body in Embodiment 2 of this utility model.

[0030] The meanings of the reference numerals in the attached figures are as follows:

[0031] 1. Lock box; 11. Lock groove; 12. Guide surface; 13. Transition surface; 2. Main lock body; 21. First seat; 22. First lock bar; 23. Lock tongue; 3. Secondary lock body; 31. Second seat; 311. Rotating groove; 312. Connecting groove; 32. Second lock bar; 321. Bar part; 3211. First connecting rod; 3212. Second connecting rod; 322. Hook part; 3221. Hook groove; 3222. Guide surface; 32221. First arc surface; 32222. Second arc surface; 32223. Guide slope; 323. Connecting block; 324. Rotating shaft; 325. Snap-fit ​​arm; 33. Second elastic element; 4. First track; 5. Second track; 6. First door / window sash; 7. Second door / window sash; 8. Handle. Detailed Implementation

[0032] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0033] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0035] The present invention will now be described in further detail with reference to the accompanying drawings.

[0036] Example 1

[0037] Please see Figures 1 to 4This embodiment discloses a lock structure for a double-door system. The lock structure includes a lock box 1, a main lock body 2, and a secondary lock body 3. The lock box 1 is mounted on a track, specifically, the lock box 1 is mounted on a first track 4, and the lock box 1 is provided with a lock groove 11. The main lock body 2 is installed on a first door / window sash 6, and the secondary lock body 3 is installed on a second door / window sash 7. Specifically, the main lock body 2 includes a latch 23, and the secondary lock body 3 includes a second seat 31 and a second lock rod 32. It is easy to understand that the first door / window sash 6 and the second door / window sash 7 can be brought close to each other to the closed position to achieve a fully closed door, and the first door / window sash 6 and the second door / window sash 7 can be moved away from each other to the open position to achieve a fully open door.

[0038] The latch 23 is located on the first door / window sash 6 and is used for vertical movement. The latch 23 can move up and down between the locked position and the unlocked position. When it is in the locked position, the latch 23 extends and enters the lock groove 11. When it is in the unlocked position, the latch 23 retracts and separates from the lock groove 11.

[0039] The second seat 31 is used to be installed on the second door / window sash 7. The second locking rod 32 is hinged to the second seat 31. The second locking rod 32 has a hook portion 322. The hook portion 322 can move between a first position and a second position relative to the locking tongue 23. When the hook portion 322 is in the second position, the locking tongue 23 can move to the locking position to engage and fix with the hook portion 322.

[0040] Among them, such as Figure 4 As shown, the hook portion 322 also has a guide surface 3222. When the hook portion 322 is in the first position and the locking tongue 23 is in the locked position, the guide surface 3222 and the locking tongue 23 abut against each other. When the hook portion 322 continues to move toward the second position, the locking tongue 23 can push against the guide surface 3222 to make the second locking rod 32 rotate relative to the second seat 31 until the guide surface 3222 passes over the locking tongue 23. Then the second locking rod 32 can be reset and rotated so that the hook portion 322 reaches the second position and engages with the locking tongue 23. For details, please refer to [reference needed]. Figure 3 .

[0041] Specifically, in the double door system, when the first door leaf 6 and the second door leaf 7 need to be moved freely, the latch 23 needs to be moved to the unlocked position. At this time, the latch 23 is in an inward state relative to the first door leaf 6. No matter how the first door leaf 6 moves, the latch 23 is separated from the lock groove 11 and the hook part 322.

[0042] Specifically, in a double-door system, when it is necessary to lock the first door / window panel 6 and the second door / window panel 7 simultaneously, the first door / window panel 6 and the second door / window panel 7 need to be brought close to each other to the closed position. The latch 23, which is in a retracted state, moves to directly below the lock groove 11 as the first door / window panel 6 moves. The latch 322 also moves to a second position as the second door / window panel 7 moves. The projection of the latch 23 onto the horizontal plane overlaps with the projection of the lock groove 11 onto the horizontal plane. Then, the latch 23 can extend relative to the first door / window panel 6 to simultaneously engage with the lock groove 11 and the latch 322. The latch 23 is in the locked position when it moves to a position where it can simultaneously engage with the lock groove 11 and the latch 322. For details, please refer to [reference needed]. Figure 1 and Figure 3 .

[0043] Specifically, in a double-door system, when it is necessary to lock the first door / window panel 6 and the second door / window panel 7 simultaneously, the first door / window panel 6 and the second door / window panel 7 need to be brought close to each other to the closed position. If the second door / window panel 7 has not moved into place (i.e., is not fully closed) and the latch 23 extends prematurely and enters the lock groove 11, as the second door / window panel 7 continues to move, please refer to... Figure 4 The hook portion 322 can first move to the first position, that is, to the position where the guide surface 3222 and the latch 23 just make contact. Due to the contact between the guide surface 3222 and the latch 23, as the second door / window sash 7 continues to move, the latch 23 can push the guide surface 3222. The guide surface 3222 converts the impact force into rotational displacement, causing the second locking rod 32 to rotate, thereby driving the hook portion 322 to rotate. When the hook portion 322 rotates to the critical position, the guide surface 3222 disengages from the latch 23, and the hook portion 322 can perform a reset rotation to finally reach the first position. The two positions engage with the latch 23, thereby simultaneously locking the first door / window sash 6 and the second door / window sash 7, which are in the closed position. Thus, the lock structure provided in this embodiment can achieve dynamic avoidance when the latch 23 extends prematurely due to misoperation, by setting the guide surface 3222, and achieve guiding contact between the latch 322 and the latch 23, eliminating rigid collision between the latch 322 and the latch 23, avoiding metal collision noise, and even if the latch 23 extends prematurely due to misoperation, the first door / window sash 6 and the second door / window sash 7 can be locked simultaneously.

[0044] It should be noted that the double door system can also achieve a half-open state, that is, by moving either the first door / window panel 6 or the second door / window panel 7 to the closed position. When the double door system is in the half-open state, if the first door / window panel 6 is in the closed position, the first door / window panel 6 can be locked by the main lock body 2 and the lock box 1. Specifically, the bolt 23 can move with the first door / window panel 6 to the bottom of the lock groove 11, and then the bolt 23 can extend relative to the first door / window panel 6 to engage in the lock groove 11, thereby locking the first door / window panel 6.

[0045] like Figure 5 and Figure 6 As shown, preferably, in this embodiment, the secondary lock body 3 further includes a second elastic member 33, which is disposed between the second seat 31 and the second lock rod 32. After the guide surface 3222 passes the lock tongue 23, the second elastic member 33 is configured to drive the second lock rod 32 to reset and rotate so that the hook portion 322 reaches the second position. Thus, firstly, after the guide surface 3222 passes the latch 23, the second elastic element 33 can drive the second locking rod 32 to reset and rotate, so that the hook part 322 accurately reaches the second position and engages with the latch 23. This elastically driven reset method has high reliability and stability, ensuring that the hook part 322 can be successfully reset under various working conditions, effectively avoiding the problem of engagement failure caused by mechanical jamming or other factors, thereby improving the success rate of the lock structure in locking the first door and window sash 6 and the second door and window sash 7. Secondly, the setting of the second elastic element 33 makes the operation of the entire lock structure smoother. During the closing process, even if the latch 23 extends in advance, due to the action of the second elastic element 33, the hook part 322 can automatically complete the rotation and reset action, without the need for the user. Additional operational intervention simplifies the closing process and enhances the user experience, making the opening and closing of the double-door system easier and more natural. Furthermore, the second elastic element 33 absorbs and buffers some of the impact force during the rotation of the second locking rod 32, reducing vibration and stress concentration caused by mechanical collisions. This helps enhance the overall stability of the lock structure and extend its service life. Finally, because the second elastic element 33 ensures the accurate reset and engagement of the hook portion 322, it reduces the occurrence of malfunctions such as insecure locking or inability to lock due to the hook portion 322 not resetting properly. This lowers the maintenance cost and repair frequency of the double-door system, improves the system's reliability and availability, and provides users with a safer and more convenient operating environment.

[0046] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, preferably, in this embodiment, the second seat 31 moves linearly in the horizontal direction, and the projection of the guide surface 3222 onto the horizontal plane is inclined to the direction of movement of the second seat 31. Thus, on the one hand, during the closing process, if the latch 23 extends prematurely, when the guide surface 3222 of the hook portion 322 contacts the latch 23, this inclined arrangement allows for smoother contact and interaction between the latch 23 and the guide surface 3222. This allows the second locking rod 32 to rotate more smoothly as the latch 23 pushes against the guide surface 3222, avoiding problems such as jamming or excessive resistance that may occur due to vertical collisions, thereby optimizing the collision buffering and guiding process. On the other hand, the inclined guide surface 3222 design facilitates the hook... During the movement, part 322 reaches the second position more accurately. Since the tilt angle of guide surface 3222 is related to the movement direction of second seat 31, when the latch 23 pushes guide surface 3222 to rotate the second locking rod 32, the hook part 322 can move along the predetermined trajectory, reducing the situation of inaccurate or unstable engagement caused by movement deviation. This ensures that the latch 23 and the hook part 322 can reliably engage, improving the accuracy and stability of the lock structure in locking the first door and window sash 6 and the second door and window sash 7.

[0047] Preferably, the guide surface 3222 can be a guide slope 32223 or a guide arc surface, and the projection of the guide slope 32223 or the guide arc surface onto the horizontal plane is inclined to the moving direction of the second seat 31.

[0048] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, preferably, in this embodiment, the second locking rod 32 also has a rod portion 321, a hook portion 322 fixedly connected to the rod portion 321, and a groove 3221 formed at the junction of the hook portion 322 and the rod portion 321. The guide surface 3222 and the groove 3221 are arranged opposite to each other. When the hook portion 322 is in the second position and the locking tongue 23 is in the locked position, the groove 3221 engages with the locking tongue 23.

[0049] Thus, on the one hand, the slot 3221 is located at the junction of the hook portion 322 and the rod portion 321. When the latch 23 engages with the slot 3221, the force can be more evenly distributed to the hook portion 322 and the rod portion 321. This force distribution method avoids stress concentration in a certain part, reducing structural deformation and damage caused by excessive local stress. At the same time, the rod portion 321, as the supporting structure of the hook portion 322, can bear part of the force, enhancing the structural strength of the entire second locking rod 32 and improving the service life of the lock structure. On the other hand, the guide surface 3222 plays a key guiding role in the closing process, and the slot 3221 is set opposite to the guide surface 3222. After the guide surface 3222 passes the latch 23, the slot 3221 can... The lock tongue 23 engages quickly and securely. This precise guidance and secure engagement work together to greatly improve the accuracy and stability of the lock structure in locking the first door / window sash 6 and the second door / window sash 7. It effectively prevents locking failure caused by accidental collisions or vibrations, ensuring that the double door system maintains a reliable locking state in various complex environments. Furthermore, the opposite arrangement of the guide surface 3222 and the slot 3221 allows the lock structure to achieve efficient locking within a limited space. This design avoids structural bulkiness caused by adding extra locking components, making the lock structure more compact. The compact structure not only saves installation space but also helps to improve the overall strength and rigidity of the lock structure, enhancing its stability and reliability.

[0050] like Figure 6 As shown, more preferably, in this embodiment, the second elastic element 33 is an elastic strip, the rod portion 321 is provided with a rotating shaft 324 and a locking arm 325, the second seat 31 is provided with a rotating groove 311 and a connecting groove 312 spaced apart, the connecting groove 312 has an opening on the side away from the rotating groove 311, the rotating shaft 324 is rotatably connected to the rotating groove 311 so that the rod portion 321 can rotate relative to the second seat 31 with the rotating shaft as the center, the locking arm 325 and the opening of the connecting groove 312 are arranged opposite each other in the horizontal direction, one end of the elastic element is locked in the connecting groove 312, and the other end is locked in the locking arm 325; when the hook portion 322 is touched and the rod portion 321 rotates, the locking arm 325 drives the elastic strip to rotate until it abuts against one side of the opening and deforms; when the hook portion 322 is disengaged from the touched object, the elastic element is reset by the abutting force on the side of the opening, thereby driving the rod portion 321 to reset, thus realizing the reset of the second locking rod 32. Thus, through clever design, the buffering and avoidance functions are integrated into the secondary lock body 3, eliminating the need for additional buffer devices or shock-absorbing materials and reducing costs; moreover, it can effectively prevent rigid collisions between the hook part 322 and the lock tongue 23, reducing the risk of damage to the hook part 322.

[0051] like Figure 6As shown, more specifically, the second locking rod 32 also includes a connecting block 323, to which the aforementioned rotating shaft 324 and snap-fit ​​arm 325 are fixed, and the connecting block 323 is fixed to the rod portion 321.

[0052] It should be noted that in some other embodiments, the second elastic element 33 may also be, but is not limited to, a torsion spring, a spring, or elastic rubber, etc., and can be selected according to actual needs, without being limited to one.

[0053] like Figure 3 , Figure 4 and Figure 5 As shown, preferably, in this embodiment, the guide surface 3222 includes a first arc surface 32221 and a guide slope 32223. The first arc surface 32221 is convex and connected between the slot 3221 and the guide slope 32223. When the guide surface 3222 and the locking tongue 23 abut against each other, the locking tongue 23 contacts the guide slope 32223 and the first arc surface 32221 in sequence.

[0054] Thus, on the one hand, when the guide surface 3222 and the locking tongue 23 abut against each other, the locking tongue 23 sequentially contacts the guide inclined surface 32223 and the first arc surface 32221. The guide inclined surface 32223 provides an initial guiding direction for the locking tongue 23 at a suitable angle, enabling the locking tongue 23 to smoothly change its movement trajectory and move towards the slot 3221. On the other hand, the outward convex setting of the first arc surface 32221 plays a role in smoothing the transition, avoiding possible jamming or impact when the locking tongue 23 directly enters the slot 3221 from the guide inclined surface 32223. This smooth guiding process... This design makes closing the door smoother, reduces noise caused by collisions, and improves the user experience. Furthermore, after moving along the guide slope 32223, the latch 23 can naturally slide into the slot 3221 along the curvature of the first arc surface 32221, which greatly improves the accuracy of the latch 23 entering the slot 3221. Compared with a structure without the first arc surface 32221, the latch 23 can more accurately engage in the slot 3221, reducing engagement failures caused by poor guidance and ensuring that the lock structure can reliably lock the first door / window sash 6 and the second door / window sash 7.

[0055] like Figure 3 , Figure 4 and Figure 5As shown, more preferably, in this embodiment, the guide surface 3222 further includes a second arc surface 32222, the second arc surface 32222, the guide inclined surface 32223 and the first arc surface 32221 are connected in sequence, and the second arc surface 32222 is convexly connected to the side of the guide inclined surface 32223 away from the slot 3221. Thus, the second arc surface 32222, the guide slope 32223, and the first arc surface 32221 are connected in sequence to form a complete and coherent guiding system. During the closing process, the latch 23 first contacts the guide slope 32223, which guides the latch 23 at a suitable angle to initially change its direction of movement, causing it to move towards the slot 3221. Then, the latch 23 enters the area of ​​the first arc surface 32221. The outward convex design of the first arc surface 32221 acts as a buffer and transition, allowing the latch 23 to continue moving smoothly and steadily. When the latch 23 slightly deviates or rebounds due to unexpected circumstances, the outward convex design of the second arc surface 32222 is located on the side of the guide slope 32223 away from the slot 3221, providing reverse guidance for the latch 23, ensuring that the latch 23 quickly returns to the correct path and finally accurately engages the slot 3221. This continuous guidance throughout the process greatly improves the smoothness of closing and avoids jamming and impact problems.

[0056] It should be noted that during the closing process, if the first door / window sash 6 is not moved into position (even if it is not fully closed), and the latch 23 is switched to the extended state prematurely due to misoperation, the first door / window sash 6 will continue to move towards the closed position, causing the latch 23 of the main lock body 2 to collide with the lock box 1. This can easily cause mechanical damage and significant noise, and it is difficult to lock the first door / window sash 6, as well as to lock both the first door / window sash 6 and the second door / window sash 7 simultaneously.

[0057] like Figure 7 and Figure 8 As shown, in order to solve the above problems, in this embodiment, the lock box 1 is provided with a guide surface 12; when the projection of the latch 23 onto the horizontal plane and the projection of the guide surface 12 onto the horizontal plane overlap at least partially, the latch 23 in the extended state and the guide surface 12 abut against each other. When the latch 23 continues to move toward the lock groove 11 (that is, the first door and window sash 6 continues to move toward the closed position), the guide surface 12 can push the latch 23 in the extended state to make the latch 23 retract until the latch 23 passes the guide surface 12, and then the latch 23 can re-extend and enter the lock groove 11.

[0058] Thus, on the one hand, during the closing process, if the first door / window sash 6 is not moved into place (i.e., not fully closed) and the latch 23 extends prematurely due to misoperation, if the first door / window sash 6 continues to move, the guide surface 12 can push the extended latch 23 inward, thus avoiding direct collision between the latch 23 and the lock box 1. This effectively prevents mechanical damage caused by collision, extends the service life of the lock, and reduces maintenance and replacement costs due to structural damage. Furthermore, after the latch 23 is pushed inward by the guide surface 12 and passes over the guide surface 12, the latch 23 can extend again and enter the lock groove 11. This process ensures that the latch 23 can enter the lock groove 11 according to the normal locking procedure, achieving the first... The effective locking of the door / window sash 6 avoids the problem of locking failure caused by premature extension of the latch 23. This design allows users to successfully close and lock the door / window even in the event of accidental operation, avoiding the hassle of reoperation or inability to lock due to accidental operation, improving the fault tolerance of the lock and reducing the difficulty of use for users. On the other hand, the direct collision between the latch 23 and the lock box 1 will produce obvious noise, which will not only affect the user experience, but may also interfere with the surrounding environment. The process of the guide surface 12 pushing the latch 23 inward is relatively smooth, avoiding violent collision, thereby eliminating the noise caused by the collision, making the closing process quieter and improving the user's comfort.

[0059] like Figure 2 , Figure 7 and Figure 8 As shown, specifically, in this embodiment, the main lock body 2 further includes a first seat 21, and the latch 23 is movably disposed on the first seat 21. The first seat 21 is used to be disposed on the first door / window sash 6 and can slide with the first door / window sash 6. The first seat 21 can move linearly in the horizontal direction, and the latch 23 can move up and down relative to the first seat 21 between the extension / retraction state and the retraction state. Preferably, the projection of the guide surface 12 onto the first plane is inclined to the direction of movement of the first seat 21, and the first plane is perpendicular to the horizontal plane and parallel to the direction of movement of the first seat 21. Thus, on the one hand, this inclined design allows the guide surface 12 to push the extended latch 23 at a more suitable angle when the projection of the latch 23 onto the horizontal plane and the projection of the guide surface 12 onto the horizontal plane overlap at least partially and the latch 23 and the guide surface 12 abut against each other. During the closing process, if the latch 23 extends prematurely due to misoperation, as the first door / window sash 6 continues to move toward the closing position, the inclined guide surface 12 can accurately guide the latch 23 to retract inward, avoiding direct collision between the latch 23 and the lock box 1. Furthermore, the inclined guide surface 12 design allows the latch 23 to pass over the guide surface 12 more smoothly after being pushed inward. After the latch 23 passes over the guide surface 12, it can extend again and enter the lock groove 11, ensuring that the latch 23 can complete the operation according to the normal locking process, thus achieving effective locking of the first door / window sash 6.

[0060] Preferably, in this embodiment, the guide surface 12 can be an inclined plane or an arc surface, whichever is selected according to actual needs, and is not limited to one.

[0061] like Figure 2 , Figure 7 and Figure 8 As shown, preferably, in this embodiment, the lock box 1 is also provided with a transversely arranged transition surface 13. The transition surface 13 is lower than the guide surface 12 in the vertical direction. The guide surface 12, the transition surface 13 and the lock groove 11 are arranged sequentially in the moving direction of the first seat 21. When the projection of the latch 23 onto the horizontal plane and the projection of the guide surface 12 onto the horizontal plane overlap at least partially and the latch 23 and the guide surface 12 abut against each other, the latch 23 can sequentially contact the guide surface 12 and the transition surface 13 and finally enter the lock groove 11.

[0062] Thus, on the one hand, the guide surface 12, the transition surface 13, and the lock groove 11 are arranged sequentially in the moving direction of the first seat 21, providing a phased guiding process for the bolt 23 to enter the lock groove 11. When the projection of the bolt 23 onto the horizontal plane and the projection of the guide surface 12 onto the horizontal plane at least partially overlap and abut against each other, the bolt 23 first contacts the guide surface 12. The guide surface 12 guides the bolt 23 to initially change its direction of movement and retract inward at a suitable angle. Then, the bolt 23 contacts the transition surface 13. The transition surface 13 is lower than the guide surface 12 in the vertical direction, and its gentle slope further guides the bolt 23 to adjust its posture, so that the bolt 23 can transition more smoothly to the position of the lock groove 11. This phased guiding method avoids the jamming and impact problems that may occur when the bolt 23 directly enters the lock groove 11, greatly improving the locking efficiency. The smoothness of the tongue 23 entering the lock groove 11; on the other hand, the setting of the transition surface 13 plays a buffering role. When the tongue 23 retracts under the guidance of the guide surface 12, the transition surface 13 can further slow down the movement speed of the tongue 23, so that the tongue 23 approaches the lock groove 11 in a gentler way. This effectively reduces the risk of direct collision between the tongue 23 and the lock box 1, avoids mechanical damage to the tongue 23 and the lock box 1 caused by violent collision, and extends the service life of the lock. In addition, the cooperation of the guide surface 12 and the transition surface 13 makes the force on the tongue 23 more uniform during the process of entering the lock groove 11, reduces stress concentration, and prevents the tongue 23 from bearing excessive impact force at any moment, thereby protecting the key parts of the tongue 23 and the lock box 1 and improving the reliability and stability of the lock structure.

[0063] Preferably, in this embodiment, the lock structure further includes a first elastic element (not shown in the figure), which is convexly connected to the latch 23. When the latch 23 needs to extend, the first elastic element can elastically drive the latch 23 to eventually move to the extended state; when the latch 23 needs to retract, the first elastic element can elastically drive the latch 23 to eventually move to the retracted state. Thus, on the one hand, the elastic force provided by the first elastic element ensures that the latch 23 maintains a stable movement trajectory during extension and retraction. When extending, the elastic force allows the latch 23 to quickly and accurately reach the extended position, ensuring reliable engagement between the latch 23 and the lock groove 11. When retracting, the elastic force also ensures that the latch 23 fully returns to the retracted state, avoiding subsequent problems caused by the latch 23 not fully retracting. This stable movement characteristic enhances the stability and reliability of the lock structure, reducing locking failures or security risks caused by inaccurate latch 23 positioning. On the other hand, when the latch 23 is subjected to external impact during extension or retraction, the first elastic element can act as a buffer and shock absorber. It can absorb some of the impact force, reduce the stress on the latch 23 and other parts of the lock, and protect the lock structure from damage. For example, if a collision occurs when closing the door, the first elastic element can buffer the impact force on the latch 23 and extend the service life of the lock.

[0064] like Figure 1 , Figure 2 and Figure 7 As shown, specifically, in this embodiment, the lock structure also includes a handle 8, and the main lock body 2 also includes a first locking rod 22. The handle 8 is used to be installed on the first door / window sash 6, and the first locking rod 22 is used to slide up and down on the vertical frame of the first door / window sash 6. The handle 8 and the first locking rod 22 are connected in a transmission manner, and the latch 23 is connected to the end of the first locking rod 22 away from the handle 8. By operating the handle 8, the first locking rod 22 can be moved up and down. Under the action of the first locking rod 22, the latch 23 can switch between an extended state and an inward state relative to the first seat 21. Thus, on the one hand, the first locking rod 22 is slidably mounted on the vertical frame of the first door / window sash 6, making full use of the limited space of the door / window sash. This compact structural design ensures that the lock does not occupy too much space during installation, making it easy to cooperate and install with other door / window components, while also making the lock more compact and lightweight overall. On the other hand, the handle 8 is connected to the first locking rod 22 via a transmission mechanism. This connection method ensures that the operation of the handle 8 is accurately transmitted to the first locking rod 22. The first locking rod 22 is slidably mounted on the vertical frame of the first door / window sash 6, and its movement trajectory is stable and can be precisely controlled. Therefore, when the handle 8 is operated, the first locking rod 22 can move up and down in the expected manner, thereby driving the bolt 23 to precisely switch between the extended and retracted states.

[0065] Specifically, the first elastic element is disposed between the handle 8 and the first locking rod 22. The first elastic element may be, but is not limited to, a snap ring or a torsion spring, etc., and can be selected according to actual needs.

[0066] like Figures 1 to 8 As shown, this embodiment also provides a double door system, including the lock structure as described above, and further including a first track 4, a second track 5, a first door / window sash 6, and a second door / window sash 7. The first door / window sash 6 is slidably disposed on the first track 4, the second door / window sash 7 is slidably disposed on the second track 5, the lock box 1 is disposed on the first track 4, the lock tongue 23 is movably disposed on the first door / window sash 6 and can move synchronously with the first door / window sash 6 in the horizontal direction, and the second seat 31 is disposed on the second door / window sash 7 and can move synchronously with the second door / window sash 7 in the horizontal direction. The included angle between the extending directions of the first track 4 and the second track 5 is between 90 and 180 degrees. Thus, this design allows the double door system to adapt to door openings of different shapes and sizes. Whether it is a right-angle door opening or an angled door opening, the double door system can be installed by adjusting the included angle of the tracks, improving the versatility and flexibility of the system.

[0067] Specifically, the rod 321 includes a first connecting rod 3211 and a second connecting rod 3212 connected to each other. A hook portion 322 is connected to the end of the second connecting rod 3212 away from the first connecting rod 3211. A slot 3221 is formed at the junction of the hook portion 322 and the second connecting rod 3212. The included angle between the first connecting rod 3211 and the second connecting rod 3212 can be designed as needed to accommodate different track angles. Thus, in actual installation, the shapes and sizes of different building doorways vary, resulting in different track angles. This flexible adjustment mechanism allows for better adaptation. The angled design of the lever 321 allows it to perfectly adapt to various track angles, ensuring the normal operation of the double-door system in different installation environments. On the other hand, when the track angle changes, by adjusting the angle design of the first link 3211 and the second link 3212, the hook 322 can always be kept in the appropriate position. In this way, during the sliding of the door and window sash, the hook 322 can accurately engage or disengage with the latch 23, ensuring smooth and accurate opening and closing of the door and window sash, and improving the overall performance and stability of the double-door system.

[0068] like Figure 1 and Figure 2 As shown, specifically in this embodiment, the angle between the extending directions of the first track 4 and the second track 5 is 180 degrees, and the first track 4 and the second track 5 extend on the same straight line.

[0069] Specifically, in this embodiment, both the first track 4 and the second track 5 are upper tracks; while in some other embodiments, both the first track 4 and the second track 5 may be lower tracks.

[0070] Example 2

[0071] like Figure 9 , Figure 10 and Figure 11 As shown, the main difference between this embodiment and Embodiment 1 is that the angle between the extension directions of the first track 4 and the second track 5 is an obtuse angle, and the angle between the first connecting rod 3211 and the second connecting rod 3212 is designed as needed to adapt to the angle between the first track 4 and the second track 5.

[0072] In summary, the lock structure and the double-door system including it disclosed in this utility model can bring at least the following beneficial technical effects:

[0073] 1) When the latch 23 extends prematurely due to misoperation, dynamic avoidance can be achieved by setting the guide surface 3222, and the hook part 322 and the latch 23 can be guided to make contact, eliminating the rigid collision between the hook part 322 and the latch 23, avoiding metal collision noise, and even if the latch 23 extends prematurely due to misoperation, the first door and window sash 6 and the second door and window sash 7 can be locked at the same time.

[0074] 2) The setting of the second elastic element 33 makes the operation of the entire lock structure smoother. During the closing process, even if the bolt 23 extends in advance, the hook part 322 can automatically complete the rotation and reset action due to the action of the second elastic element 33, without the need for additional operation intervention by the user. This not only simplifies the closing operation, but also improves the user experience, making the opening and closing action of the double door system easier and more natural.

[0075] 3) When the latch 23 extends prematurely due to misoperation, the guide surface can push the latch 23 in the extended state to retract it, effectively preventing mechanical damage caused by collision. Furthermore, after the latch 23 is pushed inward by the guide surface 12 and passes the guide surface 12, the latch 23 can extend again and enter the lock groove 11, realizing the effective locking of the first door and window sash 6 and avoiding the problem of being unable to lock due to the premature extension of the latch 23.

[0076] 4) The guide surface 12, the transition surface 13 and the lock groove 11 are arranged in sequence in the moving direction of the first seat 21, providing a phased guiding process for the bolt 23 to enter the lock groove 11. This phased guiding method avoids the jamming and impact problems that may occur when the bolt 23 directly enters the lock groove 11, and greatly improves the smoothness of the bolt 23 entering the lock groove 11.

[0077] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A lock structure for a swing door system, characterized by, include: A lock box (1) is provided for mounting on the track, and the lock box (1) is provided with a lock groove (11); A latch (23) is provided on the first door / window sash (6) for moving up and down. The latch (23) can move up and down between the locked position and the unlocked position. When in the locked position, the latch (23) extends out and enters the lock groove (11). When in the unlocked position, the latch (23) retracts inward and separates from the lock groove (11). The second seat (31) is used to be installed on the second door / window sash (7); The second locking rod (32) is hinged to the second base (31). The second locking rod (32) has a hook portion (322). The hook portion (322) can move relative to the locking tongue (23) between a first position and a second position. When the hook portion (322) is in the second position, the locking tongue (23) can move to the locked position to engage and fix with the hook portion (322). The hook portion (322) also has a guide surface (3222). When the hook portion (322) is in the first position and the latch (23) is in the locked position, the guide surface (3222) and the latch (23) abut against each other. When the hook portion (322) continues to move toward the second position, the latch (23) can push against the guide surface (3222) to make the second locking rod (32) rotate relative to the second seat (31) until the guide surface (3222) passes over the latch (23). Then the second locking rod (32) can be reset and rotated to make the hook portion (322) reach the second position and engage with the latch (23).

2. The lock structure according to claim 1, wherein The lock structure further includes a second elastic element (33), which is disposed between the second seat (31) and the second locking rod (32). The second elastic element (33) is configured to drive the second locking rod (32) to rotate and reset so that the hook portion (322) reaches the second position.

3. The lock structure according to claim 1, wherein The second seat (31) moves in a straight line in the horizontal direction, and the projection of the guide surface (3222) onto the horizontal plane is inclined to the direction of movement of the second seat (31).

4. The lock structure according to claim 3, wherein The second locking rod (32) also has a rod portion (321), the hook portion (322) is connected to the rod portion (321), the hook portion (322) has a groove (3221), the groove (3221) is formed at the junction of the hook portion (322) and the rod portion (321), the guide surface (3222) and the groove (3221) are arranged opposite to each other, when the hook portion (322) is in the second position and the locking tongue (23) is in the locked position, the groove (3221) is engaged with the locking tongue (23).

5. The lock structure according to claim 4, characterized in that, The guide surface (3222) includes a first arc surface (32221) and a guide slope (32223). The first arc surface (32221) is convex and connected between the slot (3221) and the guide slope (32223). When the guide surface (3222) and the locking tongue (23) abut against each other, the locking tongue (23) contacts the guide slope (32223) and the first arc surface (32221) in sequence.

6. The lock structure according to claim 5, wherein The guide surface (3222) further includes a second arc surface (32222), the second arc surface (32222), the guide slope (32223) and the first arc surface (32221) are connected in sequence, and the second arc surface (32222) is connected to the side of the guide slope (32223) away from the slot (3221).

7. The lock structure according to any one of claims 1 to 5, wherein The lock box (1) is provided with a guide surface (12); when the projection of the latch (23) onto the horizontal plane and the projection of the guide surface (12) onto the horizontal plane overlap at least partially, the latch (23) in the extended state and the guide surface (12) abut against each other. When the latch (23) continues to move toward the lock groove (11), the guide surface (12) can push the latch (23) in the extended state to retract the latch (23) until the latch (23) passes the guide surface (12), and then the latch (23) can re-extend and enter the lock groove (11).

8. The lock structure according to claim 7, wherein The lock structure also includes a first seat (21), which is used to be installed on the first door / window sash (6). The latch (23) is movably installed on the first seat (21). The latch (23) can move up and down relative to the first seat (21) between a telescopic state and a retracted state. The first seat (21) can move linearly in the horizontal direction. The projection of the guide surface (12) onto the first plane is inclined to the direction of movement of the first seat (21). The first plane is perpendicular to the horizontal plane and parallel to the direction of movement of the first seat (21).

9. The lockset configuration of claim 7, wherein, The lock structure also includes a first elastic element, which is connected to the latch (23) in a transmission manner. When the latch (23) needs to extend, the first elastic element can elastically drive the latch (23) to eventually move to the extended state. When the latch (23) needs to retract, the first elastic element can elastically drive the latch (23) to eventually move to the retracted state.

10. A split door system characterized by, The lock structure includes the lock structure as described in any one of claims 1-9, and further includes a first track (4), a second track (5), a first door / window sash (6), and a second door / window sash (7). The first door / window sash (6) is slidably disposed on the first track (4), and the second door / window sash (7) is slidably disposed on the second track (5). The lock box (1) is disposed on the first track (4). The lock tongue (23) is movably disposed on the first door / window sash (6) and can move synchronously with the first door / window sash (6) in the horizontal direction. The second seat (31) is disposed on the second door / window sash (7) and can move synchronously with the second door / window sash (7) in the horizontal direction. The angle between the extension directions of the first track (4) and the second track (5) is between 90° and 180°.

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