Sliding door locking structure and sliding door mechanism

Abstract

The invention discloses a sliding door locking structure and a sliding door mechanism, the sliding door locking structure comprises a lock box, the lock box comprises a lock box assembly part and a lock groove, and the lock box assembly part is used for being assembled with an upper rail; the vertical frame is provided with a sliding rail in the length direction of the vertical frame, and the vertical frame is used for being assembled with the side edge of the door body; the lock rod is arranged in the sliding rail in a sliding mode, one end of the lock rod is used for being connected with the lock groove in a matched and inserted mode, and the other end of the lock rod is in linkage with a handle of a door body so that the lock rod can stretch into or be separated from the lock groove. A lock hole or a lock tongue does not need to be arranged on the side edge of the door body, key components such as the lock box and the lock rod are hidden in the upper rail and the vertical frame, exposure of the lock is reduced, the safety of the door body is improved, meanwhile, the structure of the lock is simplified, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of door locks, and in particular to a sliding door locking structure and a sliding door mechanism. Background Art

[0002] In the field of building doors and windows, doors are widely used in various residential, commercial buildings and industrial sites due to their advantages of space saving and flexible opening. As a key component of the door body, the performance and design of the door lock play a vital role in the overall user experience and safety of the door.

[0003] Traditional door locks are mostly set on the side of the door. This design has many defects. From the perspective of aesthetics, since the edge of the door needs to be provided with a concave hole to accommodate the lock core structure or the protruding lock tongue to achieve the locking function, when the door is in the open state, the lock hole or lock tongue on the side will be directly exposed to the outside, destroying the overall smooth lines of the door and affecting the visual beauty of the interior and exterior. Especially in modern home and commercial environments that pursue minimalism and elegance, this abrupt design is particularly inconsistent.

[0004] From the perspective of security, when the door is open, the lock hole or lock tongue on the side will be directly exposed to the outside, destroying the overall smooth lines of the door and affecting the visual beauty of the interior and exterior. Especially in modern home and commercial environments that pursue minimalism and elegance, this abrupt design is particularly inconsistent. Summary of the invention

[0005] In order to overcome at least one of the defects of the prior art, the present invention provides a sliding door locking structure and a sliding door mechanism, which can solve the problems of aesthetics and safety.

[0006] The technical solution adopted by the present invention to solve the problem is:

[0007] A sliding door locking structure comprises: a lock box, the lock box comprising a lock box assembly portion and a lock slot, the lock box assembly portion being used to be assembled with an upper track; a vertical frame, the vertical frame being provided with a slide rail along its length direction, the vertical frame being used to be assembled with a side edge of a door body; a lock rod, the lock rod being slidably arranged in the slide rail, and having one end being used to be adapted and plugged into the lock slot, and the other end being linked with a handle of the door body to enable the lock rod to extend into or out of the lock slot.

[0008] By adopting the above solution, it is avoided to set a lock hole or lock tongue on the side of the door body. By hiding key components such as the lock box and the lock rod inside the upper track and the vertical frame, the exposure of the lock is reduced and the safety of the door body is improved. At the same time, the structure of the lock is simplified, the production efficiency is improved, and the production cost is reduced.

[0009] Furthermore, the slide rail is provided with a limit baffle for preventing the locking rod from detaching.

[0010] By adopting the above solution, the movement trajectory of the locking rod in the slide rail is ensured to be stable and controllable, preventing the locking rod from deflecting or shaking during the sliding process, thereby improving the reliability and durability of the locking structure and increasing the locking rod's resistance to external forces.

[0011] Furthermore, the locking rod is connected to a lock, and the lock comprises: a first lock shell, the first lock shell comprising a first lock shell assembly portion and a first slide groove, one end of the first slide groove faces the lock groove, and the first lock shell assembly portion is used to be assembled with the top of the door body; a lock tongue, the lock tongue is linked with the linkage part, the lock tongue is slidably arranged in the first slide groove, and the lock tongue is adapted to the lock groove.

[0012] By adopting the above solution, the lock can be assembled and hidden above the door body, further improving the aesthetics of the door body. At the same time, the setting of the first slide groove allows the lock tongue to slide in it. This design not only makes the movement of the lock tongue more flexible, but also can reduce the friction and wear of the lock tongue in the process of locking and opening with the lock groove to a certain extent. Compared with the direct locking and opening of the linkage part with the lock groove, it is more stable and smooth.

[0013] Furthermore, a linkage piece is provided between the lock tongue and the lock rod, limiting guide grooves are provided on both sides of the slide rail of the vertical frame, and clamping arms slidably connected to the limiting guide grooves are provided on both sides of the linkage piece.

[0014] By adopting the above solution, it is ensured that the movement trajectory of the linkage part in the slide rail is stable and controllable, and the linkage part is prevented from deflecting or shaking during the sliding process, thereby improving the reliability and durability of the locking structure and increasing the linkage part's resistance to external forces.

[0015] Furthermore, the lock tongue is provided with a sliding groove, in which a first magnetic member is movably connected, and the first magnetic member is magnetically connected to the lock groove so that the first magnetic member can slide relative to the sliding groove in a direction close to the lock groove.

[0016] By adopting the above solution, the first magnetic attraction part can slide up and down relative to the lock tongue, which solves the problem of different distances between different door bodies and the upper rail, improves the adaptation range, and can still achieve the locking effect even if there is an installation error between the door body and the upper guide rail.

[0017] Furthermore, the locking rod is provided with a first alignment rib, an intermediate rib, and a second alignment rib that are linearly and spaced apart, the linkage member is provided with a first alignment groove corresponding to the first alignment rib, and the handle is provided with a second alignment groove corresponding to the second alignment rib.

[0018] By adopting the above scheme, the first alignment rib and the first alignment groove ensure the precise alignment and stable connection between the lock rod and the linkage part, the second alignment rib and the second alignment groove ensure the precise alignment and stable connection between the lock rod and the handle, and the middle rib improves the strength of the lock rod itself. At the same time, the two ends of the middle rib respectively abut against the end of the linkage part and the end of the handle to improve the connection stability.

[0019] Furthermore, a clamping lip plate for preventing the linkage member from being separated is provided at the edge of the limiting guide groove, and a clamping protrusion for abutting against the clamping lip plate is provided at the end of the clamping arm.

[0020] By adopting the above scheme, the presence of the snap-fit ​​lip plate effectively prevents the linkage part from accidentally disengaging from the limiting guide groove during the sliding process, and the snap-fit ​​protrusion will tightly abut against the snap-fit ​​lip plate, thereby limiting the lateral movement range of the linkage part, ensuring that the linkage part always remains in the correct position during the locking and opening process, avoiding the problem of lock failure caused by the linkage part falling off.

[0021] Furthermore, sliding surfaces are provided on both sides of the clamping protrusion, and the sliding surfaces are inclined surfaces or curved surfaces.

[0022] By adopting the above scheme, the inclined or curved sliding surface design can reduce the contact area between the linkage part and the clamping lip plate during the sliding process, thereby reducing friction and wear and improving smoothness; the sliding surface design can also play a guiding role, helping the linkage part to maintain the correct direction during the sliding process.

[0023] Furthermore, the lock tongue is provided with an extension arm in the direction of the lock rod, and the extension arm is clamped with one end of the lock rod.

[0024] By adopting the above solution, the connection stability between the lock tongue and the lock rod is improved, so that the two can maintain synchronous movement.

[0025] A sliding door mechanism comprises an upper track, a door body with a handle and a door body locking structure, wherein the lock box assembly is installed in the upper track, and the handle can drive the lock rod to slide up and down along the slide rail so that the lock rod extends into or away from the lock slot.

[0026] By adopting the above solution, a door body mechanism with a hidden locking mechanism is realized, which can improve the aesthetics. At the same time, the overall locking structure is simple and easy to operate.

[0027] In summary, the sliding door locking structure and the sliding door mechanism provided by the present invention have the following technical effects:

[0028] 1. By hiding the key components such as the lock box and the lock rod inside the upper track and the vertical frame, it is avoided to set the lock hole or lock tongue on the side of the door body. This design eliminates the abrupt feeling of the lock hole or lock tongue on the side of the traditional door lock when it is open, maintains the overall smooth lines of the door body, and thus improves the visual beauty of the interior and exterior;

[0029] 2. The hidden locking structure reduces the exposure of the lock and reduces the risk of malicious damage or prying. The lock box assembly is assembled with the upper track, and the lock rod is matched with the lock slot. This close fit in the structure also improves the reliability and stability of the lock, further enhancing the safety of the door body;

[0030] 3. The design of the hidden locking structure is relatively simple, reducing unnecessary parts and complicated assembly processes. This helps to reduce production costs and improve production efficiency. The simplified structure also means less maintenance requirements and longer service life, saving users later maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of a partial explosion structure of an embodiment of the present invention;

[0033] Figure 3 for Figure 2 A magnified view of area A in;

[0034] Figure 4 This is a schematic diagram of the door locking integral driving structure according to an embodiment of the present invention;

[0035] Figure 5 A schematic diagram of the lock box structure of an embodiment of the present invention;

[0036] Figure 6 This is a disassembled structure diagram of a lock according to an embodiment of the present invention;

[0037] Figure 7 It is a schematic diagram of the decomposed structure of the linkage connection of an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the exploded structure of the lock rod and the handle according to an embodiment of the present invention;

[0039] Fig. 9 It is a schematic diagram of the alignment structure between the lock box and the lock according to an embodiment of the present invention.

[0040] The meanings of the reference numerals are as follows: 1. lock box; 11. lock box assembly portion; 111. first assembly hole; 112. first fixing member; 12. lock slot; 2. linkage member; 21. clamping arm; 211. clamping protrusion; 212. sliding surface; 22. first alignment groove; 23. clamping block; 3. vertical frame; 31. slide rail; 311. limit baffle; 32. limit guide groove; 321. clamping lip plate; 33. vertical frame cover; 4. lock rod; 41. The first alignment rib; 42, the middle rib; 43, the second alignment rib; 5, the lock; 51, the first lock shell; 511, the first lock shell assembly part; 512, the second fixing member; 513, the first slide groove; 514, the second assembly hole; 52, the lock tongue; 521, the sliding groove; 522, the first magnetic member; 523, the extension arm; 524, the bayonet; 6, the door body; 61, the handle; 611, the second alignment groove; 612, the sliding block; 7, the upper track. DETAILED DESCRIPTION

[0041] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] In order to facilitate the understanding of the embodiments of the present invention, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0043] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0045] Embodiments of the present invention refer to Figure 1-Figure 9As shown, a sliding door locking structure is disclosed, including a lock box 1, a vertical frame 3 and a lock rod 4. The lock box 1 includes a lock box assembly part 11 and a lock slot 12. The lock box assembly part 11 is used to assemble with the upper track 7. Specifically, the lock box assembly part 11 is provided with a first assembly hole 111. The first assembly hole 111 is provided with a first fixing member 112. Optionally, the first fixing member 112 includes but is not limited to a screw, a screw or a bolt. Preferably, the first fixing member 112 is a screw, which is inserted upward from the lock slot 12 and locked and fixed to the upper track 7. The lock rod 4 is adapted to the lock slot 12; specifically, the projection of the lock rod 4 on the horizontal plane does not exceed the projection range of the lock slot 12 on the horizontal plane, so as to ensure that the lock rod 4 can extend into the lock slot 12. The vertical frame 3 is used to assemble with the side of the door body 6. The vertical frame 3 is provided with a slide rail 31 along its length direction. Optionally, the vertical frame 3 is also provided with a vertical frame cover 33 to cover the slide rail 31, play the role of hiding the slide rail 31, avoid human damage, and play a waterproof and dustproof effect. The lock rod 4 is slidably arranged in the slide rail 31, and one end is used to adapt and plug with the lock groove 12, and the other end is linked with the handle 61 of the door body 6 to make the lock rod 4 extend into or out of the lock groove 12. This arrangement avoids the need to set a lock hole or lock tongue 52 on the side of the door body 6. By hiding the key components such as the lock box 1 and the lock rod 4 inside the upper track 7 and the vertical frame 3, the exposure of the lock 5 is reduced, the safety of the door body 6 is improved, and the structure of the lock 5 is simplified, the production efficiency is improved, and the production cost is reduced.

[0046] In some embodiments, in order to improve the running stability of the lock rod 4 and improve the accuracy of inserting into the lock slot 12, it is necessary to provide a guide for it. Optionally, a limit baffle 311 is provided on the slide rail 31 to prevent the lock rod 4 from disengaging. The lock rod 4 is prevented from deflecting or shaking during the sliding process, thereby improving the reliability and durability of the locking structure and increasing the strength of the lock rod 4 against external forces.

[0047] In some embodiments, in order to improve the running stability of the lock rod 4 and improve the accuracy of inserting into the lock slot 12, a lock 5 can be added, the lock 5 includes a first lock shell 51 and a lock tongue 52, the first lock shell 51 includes a first lock shell assembly portion 511 and a first slide groove 513, one end of the first slide groove 513 faces the lock slot 12, the lock tongue 52 is slidably arranged in the first slide groove 513, so that the first slide groove 513 provides guidance for the lock tongue 52, specifically, the first lock shell assembly portion 511 is used to assemble with the upper part of the door body 6, preferably, a second fixing member 512 is arranged in the second assembly hole 514, optionally, the second fixing member 512 includes but is not limited to a screw, a screw or a bolt, preferably, the second fixing member 512 is a screw, the screw is inserted from one side of the first lock box 1 and tilted downward, so that the screw is fixed to the upper frame of the door body 6. The lower end of the lock tongue 52 is fixed to the lock rod 4, so that the lock tongue 52 replaces the lock rod 4 and the lock slot 12 to complete the locking function. Therefore, the lock tongue 52 and the lock slot 12 need to be compatible, specifically, the projection of the lock tongue 52 on the horizontal plane does not exceed the projection range of the lock slot 12 on the horizontal plane, ensuring that the lock tongue 52 can extend into the lock slot 12. With this arrangement, the lock 5 can be assembled and hidden above the door body 6, improving the aesthetics of the door body. At the same time, the arrangement of the first sliding groove 513 allows the lock tongue 52 to slide therein. This design not only makes the movement of the lock tongue 52 more flexible, but also can reduce the friction and wear of the lock tongue 52 during the locking and opening process with the lock slot 12 to a certain extent, which is more stable and smoother than the locking rod 4 directly locking and opening with the lock slot 12.

[0048] Optionally, in order to improve the linkage stability between the lock tongue 52 and the lock rod 4, a linkage member 2 is further provided between the lock tongue 52 and the lock rod 4, and limited guide grooves 32 are provided on both sides of the slide rail 31 of the vertical frame 3, and clamping arms 21 slidably connected to the limited guide grooves 32 are provided on both sides of the linkage member 2. It is ensured that the movement trajectory of the linkage member 2 in the slide rail 31 is stable and controllable, and the linkage member 2 is prevented from deflecting or shaking during the sliding process, thereby improving the reliability and durability of the locking structure and increasing the strength of the linkage member 2 against external forces. Preferably, the edge of the limiting guide groove 32 is provided with a snapping lip plate 321 for preventing the linkage member 2 from disengaging, and the end of the snapping arm 21 is provided with a snapping protrusion 211 abutting against the snapping lip plate 321. The presence of the snapping lip plate 321 effectively prevents the linkage member 2 from accidentally disengaging from the limiting guide groove 32 during the sliding process, and the snapping protrusion 211 will tightly abut against the snapping lip plate 321, thereby limiting the lateral movement range of the linkage member 2, ensuring that the linkage member 2 always remains in the correct position during the locking and opening process, and avoiding the failure of the lock 5 caused by the linkage member 2 falling off. Optionally, sliding surfaces 212 are provided on both sides of the clamping protrusion 211. The sliding surfaces 212 are inclined surfaces or curved surfaces. The design of the inclined or curved sliding surfaces 212 can reduce the contact area between the linkage member 2 and the clamping lip plate 321 during the sliding process, thereby reducing friction and wear, and improving smoothness; the design of the sliding surface 212 can also play a guiding role, helping the linkage member 2 to maintain the correct direction during the sliding process. The sliding surface 212 makes the linkage member 2 and the slide rail 31 detachable, which is easy to replace. There is no need to disassemble the vertical frame 3 to remove the linkage member 2 from the end of the vertical frame 3, which greatly improves maintenance efficiency and reduces maintenance costs.

[0049] Optionally, the connection between the linkage member 2 and the lock tongue 52 includes but is not limited to snap-on, screw-on or adhesive connection. In the present embodiment 1, an extension arm 523 is provided below the lock tongue 52, and the extension arm 523 is provided with a bayonet 524. A block 23 facing the bayonet 524 is provided at the upper end of the linkage member 2. When the block 23 of the linkage member 2 is inserted into the bayonet 524, the vertical frame cover body 33 is covered on one side of the slide rail 31 of the vertical frame 3, so as to achieve the effect of closing the slide rail 31 and avoid the detachment between the linkage member 2 and the extension arm 523.

[0050] The connection between the linkage part 2 and the locking rod 4 includes but is not limited to snap-on, screw-on or adhesive connection. In the present embodiment 1, the locking rod 4 is provided with a linear and spaced first alignment rib 41, an intermediate rib 42 and a second alignment rib 43 on one side of the linkage part 2. The linkage part 2 is provided with a first alignment groove 22 corresponding to the first alignment rib 41. When the first alignment groove 22 of the linkage part 2 is aligned with the first alignment rib 41 and connected, the vertical frame cover body 33 is covered on one side of the slide rail 31 of the vertical frame 3, so as to achieve the effect of closing the slide rail 31 and prevent the linkage part 2 and the locking rod 4 from being separated.

[0051] The connection between the locking rod 4 and the handle 61 includes but is not limited to snap connection, screw connection or bonding. In the present embodiment 1, the handle 61 includes a toggle slider 612, and the toggle slider 612 can drive the handle 61 to slide along the length direction of the vertical frame 3. The handle 61 is provided with a second alignment groove 611 corresponding to the second alignment rib 43. When the second alignment groove 611 of the handle 61 is aligned with the second alignment rib 43 and connected, the vertical frame cover 33 is then covered on one side of the slide rail 31 of the vertical frame 3, so as to achieve the effect of closing the slide rail 31 and prevent the handle 61 from being separated from the locking rod 4. The second alignment rib 43 and the second alignment groove 611 ensure the precise alignment and stable connection between the locking rod 4 and the handle 61. The middle rib 42 improves the strength of the locking rod 4 itself. At the same time, the two ends of the middle rib 42 are respectively abutted against the end of the linkage 2 and the end of the handle 61, so as to improve the connection stability.

[0052] Optionally, the handle 61 can be slidably disposed on the slide rail 31, or can be slidably disposed on the limiting guide groove 32. The toggle slider 612 can slide longitudinally along the door body, allowing the user to drive the handle 61 to move by directly operating the toggle slider 612, and the handle 61 can smoothly drive the linkage member 2 to move, thereby realizing the locking and opening of the door body 6.

[0053] In some embodiments, in order to solve the problem of difficulty in locking due to different assembly distances between different door bodies 6 and upper rails 7, a sliding groove 521 is provided in the lock tongue 52, and a first magnetic member 522 is movably connected in the sliding groove 521. The first magnetic member 522 is magnetically connected to the lock groove 12, so that the first magnetic member 522 can slide relative to the sliding groove 521 in a direction close to the lock groove 12. Preferably, the first magnetic member 522 is selected as a magnet, and the magnet can be magnetically attracted by the first fixing member 112 in the lock groove 12. When the first fixing member 112 cannot be magnetically attracted, a second magnetic member can be added in the lock groove 12. The second magnetic member can be a magnet or a metal member that can be attracted by a magnet. Since the first magnetic member 522 can slide up and down relative to the lock tongue 52, the problem of different spacings between different door bodies 6 and upper rails 7 is solved, the adaptation range is improved, and the locking effect can still be achieved even if there is an installation error between the door body 6 and the upper rail. It should be noted that the first magnetic member 522 needs to be set to be unable to completely disengage from the sliding slot 521, so that when the user slides the slider 612 of the handle 61 downward, the magnetic member can be driven downward to contact the magnetic attraction effect to avoid being unable to unlock. Therefore, in some embodiments, the length of the first magnetic member 522 that can extend out of the sliding slot 521 is usually adjustable, and the adjustment method includes but is not limited to screw limit. This embodiment is not specifically limited.

[0054] The present invention also relates to a sliding door mechanism, comprising an upper track 7, a door body 6 with a handle 61, and a locking structure of the door body 6, wherein the lock box assembly 11 is installed in the upper track 7, and the handle 61 can drive the lock rod 4 to slide up and down along the slide rail 31, so that the lock rod 4 extends into or away from the lock groove 12. Thus, a door body 6 mechanism with a hidden locking mechanism can be realized, which can improve the aesthetics and has the advantages of a simple overall locking structure and convenient operation.

[0055] In summary, the sliding door locking structure and door body 6 mechanism provided by the present invention have the following technical effects:

[0056] 1. By hiding the key components such as the lock box 1 and the lock rod 4 inside the upper track 7 and the vertical frame 3, it is avoided to set the lock hole or lock tongue 52 on the side of the door body 6. This design eliminates the abrupt feeling of the lock hole or lock tongue 52 on the side of the traditional door body 6 when the lock is in the open state, maintains the overall smooth lines of the door body, and thus improves the visual beauty of the interior and exterior;

[0057] 2. The hidden locking structure reduces the exposure of the lock 5 and reduces the risk of malicious damage or prying. The lock box assembly 11 is assembled with the upper track 7, and the lock rod 4 is matched with the lock slot 12. This close fit in the structure also improves the reliability and stability of the lock, and further enhances the safety of the door body 6;

[0058] 3. The design of the hidden locking structure is relatively simple, reducing unnecessary parts and complicated assembly processes. This helps to reduce production costs and improve production efficiency. The simplified structure also means less maintenance requirements and longer service life, saving users later maintenance costs.

[0059] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A sliding door locking structure, characterized in that: include: A lock box (1), the lock box (1) comprising a lock box assembly portion (11) and a lock slot (12), the lock box assembly portion (11) being used for assembly with an upper rail (7); A vertical frame (3), wherein the vertical frame (3) is provided with a slide rail (31) along its length direction, and the vertical frame (3) is used to be assembled with the side of the door body (6); A locking rod (4), wherein the locking rod (4) is slidably disposed in the slide rail (31), and one end of the locking rod is used to be adapted to be plugged into the locking groove (12), and the other end of the locking rod is linked to a handle (61) of the door body (6) so that the locking rod (4) can be extended into or out of the locking groove (12).

2. A sliding door locking structure according to claim 1, characterized in that: The slide rail (31) is provided with a limit baffle (311) for preventing the locking rod (4) from disengaging.

3. A sliding door locking structure according to claim 1 or 2, characterized in that: The locking rod (4) is connected to a lock (5), and the lock (5) comprises: A first lock shell (51), the first lock shell (51) comprising a first lock shell assembly portion (511) and a first slide groove (513), one end of the first slide groove (513) faces the lock groove (12), and the first lock shell assembly portion (511) is used for assembly with the upper part of the door body (6); A locking tongue (52), wherein the locking tongue (52) is fixed to one end of the locking rod (4), the locking tongue (52) is slidably arranged in the first sliding groove (513), and the locking tongue (52) is adapted to the locking groove (12).

4. A sliding door locking structure according to claim 3, characterized in that: A linkage member (2) is also provided between the locking tongue (52) and the locking rod (4), and limiting guide grooves (32) are provided on both sides of the slide rail (31) of the vertical frame (3), and clamping arms (21) slidably connected to the limiting guide grooves (32) are provided on both sides of the linkage member (2).

5. The sliding door locking structure according to claim 3, characterized in that: The lock tongue (52) is provided with a sliding groove (521), and a first magnetic attraction member (522) is movably connected in the sliding groove (521). The first magnetic attraction member (522) is magnetically connected to the lock groove (12) so that the first magnetic attraction member (522) can slide relative to the sliding groove (521) in a direction close to the lock groove (12).

6. A sliding door locking structure according to claim 4, characterized in that: The locking rod (4) is provided with a first alignment rib (41), an intermediate rib (42) and a second alignment rib (43) which are linearly and spaced apart, the linkage member (2) is provided with a first alignment groove (22) corresponding to the first alignment rib (41), and the handle (61) is provided with a second alignment groove (611) corresponding to the second alignment rib (43).

7. A sliding door locking structure according to claim 4, characterized in that: The edge of the limiting guide groove (32) is provided with a clamping lip plate (321) for preventing the linkage member (2) from detaching, and the end of the clamping arm (21) is provided with a clamping protrusion (211) abutting against the clamping lip plate (321).

8. The sliding door locking structure according to claim 7, characterized in that: Sliding surfaces (212) are provided on both sides of the clamping protrusion (211), and the sliding surfaces (212) are inclined surfaces or curved surfaces.

9. The sliding door locking structure according to claim 3, characterized in that: The locking tongue (52) is provided with an extension arm (522) in the direction of the locking rod (4), and the extension arm (522) is clamped with one end of the locking rod (4).

10. A sliding door mechanism, characterized in that: It comprises an upper track (7), a door body (6) with a handle (61) and a sliding door locking structure as described in any one of claims 1 to 9, wherein the lock box assembly part (11) is installed in the upper track (7), and the handle (61) can drive the locking rod (4) to slide up and down along the slide rail (31) so that the locking rod (4) extends into or away from the locking groove (12).

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