A self-locking sliding door

By installing a lock body and drive assembly on the sliding door, automatic locking is achieved using a locking rod, locking hook, and locking groove mechanism. This solves the problem of single-sided sliding doors being inconvenient to lock automatically when closed, improving ease of use and transmission efficiency, and enhancing stability and lifespan.

CN116752865BActive Publication Date: 2025-11-14TIANJIN DAYIN BUILDING MATERIAL CO LTD
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Patent Information

Application Number
CN202310716261.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-16
Publication Date
2025-11-14
Estimated Expiration
2043-06-16

AI Technical Summary

Technical Problem

Existing single-sided sliding doors are difficult to lock automatically when closed and are inconvenient to unlock, making them inconvenient to use.

Method used

A self-locking sliding door was designed. By installing a lock body and a drive assembly on the sliding door, automatic locking is achieved using a locking rod, locking hook, and locking groove mechanism. The effective rotation of the drive shaft is ensured by a limit plate and a one-way bearing, and the drive handle enables easy opening.

Benefits of technology

The sliding door automatically locks when closed and can be opened simply by pushing the handle, improving ease of use and transmission efficiency, preventing damage to the internal structure, and enhancing stability and lifespan.

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Abstract

This invention relates to a self-locking sliding door, belonging to the field of sliding door technology. The sliding door is equipped with a lock body, within which two locking rods are rotatably connected via a pivot. The two locking rods are mirror-shaped, and a torsion spring is installed between the pivot and the locking rods. One end of each locking rod has a locking hook, and a locking groove mechanism is installed on a fixed frame. The locking hook cooperates with the locking groove mechanism for locking. The other end of the locking rod is hinged to one end of a connecting rod. This application achieves locking through the cooperation of the locking hook and the locking groove mechanism, with the other end of the locking rod hinged to one end of the connecting rod. A drive assembly is installed on the lock body, and a drive block is mounted on the drive assembly via a one-way bearing. Both ends of the drive block are hinged to the other ends of the two connecting rods, allowing the sliding door to automatically lock while closing, and to open simply by pushing the handle when leaving, improving ease of use and making unlocking more efficient.
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Description

Technical Field

[0001] This invention belongs to the field of sliding door technology, specifically relating to a self-locking sliding door. Background Technology

[0002] Sliding doors are a common type of door in homes. They can be pushed and pulled, greatly facilitating the division and utilization of living space. Their reasonable sliding design meets the compact order and rhythm that modern life emphasizes. Sliding glass doors make a room appear lighter. Single-sided sliding doors can only be pushed and pulled on one side of the door. They are particularly widely used in bathroom partitions or shower partitions to achieve different usage effects.

[0003] When a single-sided sliding door is used as a partition for a toilet or bathroom, a lock is usually installed on the moving door panel. When using the toilet or bathroom, the sliding door is locked. Because the sliding door moves laterally relative to the door frame, after the sliding door is closed, the handle or other transmission trigger mechanism needs to be rotated to lock the latch into the lock groove on the door frame. It is difficult to lock the sliding door automatically while closing it from the inside, and it is also difficult to unlock it automatically when unlocking. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, the present invention proposes a self-locking sliding door.

[0005] The specific technical solution of the present invention is as follows: A self-locking sliding door includes: a fixed frame, a fixed door mounted on the fixed frame, a sliding door slidably connected to the fixed frame, a self-locking component mounted on the sliding door, and a driving component mounted on the self-locking component. The self-locking component includes: a lock body, a lock body mounted on the sliding door, two locking rods rotatably connected to the lock body via a rotating shaft, the two locking rods being mirror images of each other, a torsion spring installed between the rotating shaft and the locking rods, a locking hook provided at one end of each locking rod, a locking groove mechanism mounted on the fixed frame, the locking hook cooperating with the locking groove mechanism for locking, the other end of the locking rod being hinged to one end of a connecting rod, a driving component mounted on the lock body, a driving block mounted on the driving component via a one-way bearing, and both ends of the driving block being hinged to the other ends of the two connecting rods respectively.

[0006] This application features a lock body installed on a sliding door. Two locking rods are rotatably connected within the lock body via a rotating shaft. The two locking rods are mirror images of each other. A torsion spring is installed between the rotating shaft and the locking rods. One end of each locking rod has a locking hook. A locking groove mechanism 44 is installed on a fixed frame. The locking hook 43 cooperates with the locking groove mechanism 44 to lock the door. The other end of the locking rod is hinged to one end of a connecting rod. A drive assembly is installed on the lock body. A drive block is installed on the drive assembly via a one-way bearing. Both ends of the drive block are hinged to the other ends of the two connecting rods, allowing the sliding door to automatically lock while closing. When leaving, it can be opened simply by pushing the handle, improving ease of use and making unlocking more efficient.

[0007] Furthermore, the drive assembly includes: a limiting plate, which is installed on the lock body, a drive shaft is rotatably connected to the limiting plate, a limiting block is provided on the drive shaft, the limiting plate and the limiting block cooperate to limit the rotation angle of the drive shaft, a drive block is installed on the drive shaft through a one-way bearing, and a drive handle is installed on the drive shaft.

[0008] This application uses a limit plate installed on the lock body, with a drive shaft rotatably connected to the limit plate. A limit block is set on the drive shaft, and the limit plate and the limit block cooperate to limit the rotation angle of the drive shaft. A drive block is installed on the drive shaft through a one-way bearing, and a drive handle is installed on the drive shaft to limit the rotation angle of the drive shaft, thereby avoiding damage to the internal structure due to excessive rotation of the drive shaft and improving the transmission efficiency of the door lock opening.

[0009] Furthermore, the locking groove mechanism includes: a locking recess, a locking recess mounted on the fixed frame, a locking block installed inside the locking recess, and a locking hook cooperating with the locking block to lock.

[0010] Furthermore, the locking block is configured as a semi-circular block with chamfered edges.

[0011] This application improves stability by setting the locking block to a semi-circular shape with chamfered edges, thus preventing the locking hook from getting stuck between the locking block when closing and unlocking the door.

[0012] Furthermore, the locking block is configured as a trapezoidal block with chamfered edges.

[0013] This application improves stability by setting the locking block to a trapezoidal shape with chamfered edges, thus preventing the locking hook from getting stuck between the locking block when the door is locked and unlocked.

[0014] Furthermore, it also includes: a slide rail and a slide groove, wherein the slide rail is installed on the fixed frame and the slide door is provided with a slide groove, and the slide rail and the slide groove are slidably connected.

[0015] This application features a sliding rail installed on a fixed frame and a sliding groove on the sliding door. The sliding rail and the sliding groove are slidably connected, making the opening and closing of the sliding door smoother and improving the opening and closing efficiency.

[0016] Furthermore, anti-collision strips are provided on the fixed frame.

[0017] This application incorporates anti-collision strips on a fixed frame to prevent damage from collisions when the sliding door is opened, thereby extending its service life.

[0018] Furthermore, the drive handle is provided with anti-slip texture.

[0019] This application improves ease of use by incorporating anti-slip textures on the drive handle to prevent it from slipping during use.

[0020] Furthermore, both the lock body and the locking recess are fixedly installed by bolts.

[0021] This application improves installation stability by fixing both the lock body and the locking recess with bolts.

[0022] Beneficial effects:

[0023] This application features a lock body mounted on a sliding door. The lock body contains two locking rods rotatably connected via a pivot. The two locking rods are mirror images of each other. A torsion spring is installed between the pivot and the locking rods. One end of each locking rod has a locking hook. A locking groove mechanism is mounted on a fixed frame. The locking hook and locking groove mechanism cooperate to lock the door. The other end of the locking rod is hinged to one end of a connecting rod. A drive assembly is mounted on the lock body. A drive block is mounted on the drive assembly via a one-way bearing. Both ends of the drive block are hinged to the other ends of the two connecting rods. This design allows the sliding door to automatically lock when closed, and to be opened simply by pushing the handle when leaving, improving ease of use and making unlocking more efficient.

[0024] This application uses a limit plate installed on the lock body, with a drive shaft rotatably connected to the limit plate. A limit block is set on the drive shaft, and the limit plate and the limit block cooperate to limit the rotation angle of the drive shaft. A drive block is installed on the drive shaft through a one-way bearing, and a drive handle is installed on the drive shaft to limit the rotation angle of the drive shaft, thereby avoiding damage to the internal structure due to excessive rotation of the drive shaft and improving the transmission efficiency of the door lock opening.

[0025] This application improves stability by setting the locking block to a semi-circular shape with chamfered edges, thus preventing the locking hook from getting stuck between the locking block when closing and unlocking the door.

[0026] This application improves stability by setting the locking block to a trapezoidal shape with chamfered edges, thus preventing the locking hook from getting stuck between the locking block when the door is locked and unlocked.

[0027] This application features a sliding rail installed on a fixed frame and a sliding groove on the sliding door. The sliding rail and the sliding groove are slidably connected, making the opening and closing of the sliding door smoother and improving the opening and closing efficiency.

[0028] This application incorporates anti-collision strips on a fixed frame to prevent damage from collisions when the sliding door is opened, thereby extending its service life.

[0029] This application improves ease of use by incorporating anti-slip textures on the drive handle to prevent it from slipping during use.

[0030] This application improves installation stability by fixing both the lock body and the locking recess with bolts. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a schematic diagram showing the installation position of the self-locking component of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the self-locking component of the present invention;

[0034] Figure 4 This is a schematic diagram showing the installation position of the locking groove mechanism of the present invention;

[0035] Figure 5 This is a schematic diagram of the locking groove mechanism of the present invention;

[0036] Figure 6 This is a schematic diagram of the slide rail structure of the present invention;

[0037] Explanation of markings in the diagram:

[0038] Fixed frame 1, fixed door 2, sliding door 3, self-locking assembly 4, lock body 41, locking rod 42, locking hook 43, locking groove mechanism 44, connecting rod 45, one-way bearing 46, drive block 47, locking recess 441, locking block 442, drive assembly 5, limit plate 51, drive shaft 52, limit block 53, drive handle 54, slide rail 6, slide groove 7, anti-collision strip 8. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be understood that the terms "upper," "middle," "outer," "inner," etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0041] Example 1: Combination Figures 1-3 A self-locking sliding door is described, comprising: a fixed frame 1, a fixed door 2 mounted on the fixed frame 1, a sliding door 3 slidably connected to the fixed frame 1, a self-locking assembly 4 mounted on the sliding door 3, and a driving assembly 5 mounted on the self-locking assembly 4. The self-locking assembly 4 includes: a lock body 41, which is mounted on the sliding door 3. Two locking rods 42 are rotatably connected within the lock body 41 via a rotating shaft. The two locking rods 42 are mirror images of each other. A torsion spring is installed between the rotating shaft and the locking rods 42. A locking hook 43 is provided at one end of each locking rod 42. A locking groove mechanism 44 is mounted on the fixed frame 1. The locking hook 43 cooperates with the locking groove mechanism 44 to lock the door. The other end of the locking rod 42 is hinged to one end of a connecting rod 45. The driving assembly 5 is mounted on the lock body 41. A driving block 47 is mounted on the driving assembly 5 via a one-way bearing 46. Both ends of the 47 are hinged to the other ends of the two connecting rods 45 respectively. In this application, a lock body 41 is installed on the sliding door 3. Two locking rods 42 are rotatably connected inside the lock body 41 through a rotating shaft. The two locking rods 42 are mirror images of each other. A torsion spring is installed between the rotating shaft and the locking rods 42. A locking hook 43 is provided at one end of the locking rod 42. A locking groove mechanism 44 is installed on the fixed frame 1. The locking hook 43 cooperates with the locking groove mechanism 44 to lock. The other end of the locking rod 42 is hinged to one end of the connecting rod 45. A drive assembly 5 is installed on the lock body 41. A drive block 47 is installed on the drive assembly 5 through a one-way bearing 46. Both ends of the drive block 47 are hinged to the other ends of the two connecting rods 45 respectively. This allows the sliding door to lock automatically when closed, and to be opened by simply pushing the handle when leaving, improving the convenience of use and making the pulling to unlock more efficient.

[0042] Example 2: Based on Example 1, combined with Figure 2 and Figure 3The drive assembly 5 includes: a limiting plate 51, which is mounted on the lock body 41. A drive shaft 52 is rotatably connected to the limiting plate 51. A limiting block 53 is provided on the drive shaft 52. The limiting plate 51 and the limiting block 53 cooperate to limit the rotation angle of the drive shaft 52. A drive block 47 is mounted on the drive shaft 52 via a one-way bearing 46. A drive handle 54 is mounted on the drive shaft 52. By installing a limiting plate 51 on the lock body 41, rotatably connecting the limiting plate 51 to the drive shaft 52, providing a limiting block 53 on the drive shaft 52, and using the limiting plate 51 and the limiting block 53 to limit the rotation angle of the drive shaft 52, and by providing the drive block 47 and the drive handle 54 on the drive shaft 52, the rotation angle of the drive shaft 52 is limited, preventing excessive rotation of the drive shaft 52 from damaging its internal structure and improving the transmission efficiency of the door lock opening.

[0043] Example 3: Based on Example 1, combined with Figure 3 and Figure 4 As explained, the locking groove mechanism 44 includes: a locking recess 441, which is installed on the fixed frame 1. A locking block 442 is installed inside the locking recess 441, and the locking hook 43 cooperates with the locking block 442 to lock.

[0044] Example 4: Based on Example 3, combined with Figure 3 As explained, the locking block 442 is set as a semi-circular block with chamfered edges. By setting the locking block 442 as a semi-circular block with chamfered edges, this application avoids the locking hook 43 from getting stuck between the locking block 442 when locking the door and unlocking the door, thus improving the stability of use.

[0045] Example 5: Based on Example 3, combined with Figure 5 As explained, the locking block 442 is configured as a trapezoidal block with chamfered edges. By configuring the locking block 442 as a trapezoidal block with chamfered edges, this application avoids the locking hook 43 from getting stuck between the locking block 442 when locking the door and unlocking the door, thus improving the stability of use.

[0046] Example 6: Based on Example 1, combined with Figure 6 The description also includes: a slide rail 6 and a slide groove 7. The slide rail 6 is installed on the fixed frame 1, and the slide door 3 is provided with a slide groove 7. The slide rail 6 and the slide groove 7 are slidably connected. This application makes the opening and closing of the sliding door smoother and improves the opening and closing efficiency by installing a slide rail 6 on the fixed frame 1 and providing a slide groove 7 on the sliding door 3, with the slide rail 6 and the slide groove 7 slidably connected.

[0047] Example 7: Based on Example 1, combined with Figure 1As can be seen, the fixed frame 1 is provided with anti-collision strips 8. This application uses anti-collision strips 8 on the fixed frame 1 to avoid collision damage when the sliding door is opened, thereby improving its service life.

[0048] Example 8: Based on Example 2, combined with Figure 1 As can be seen, the drive handle 54 is provided with anti-slip texture. This application improves the ease of use by providing anti-slip texture on the drive handle 54 to prevent the drive handle 54 from slipping during use.

[0049] Example 9: Based on Example 3, combined with Figure 2 and Figure 4 As can be seen, both the lock body 41 and the locking recess 441 are fixedly installed by bolts. This application improves the installation stability by fixing both the lock body 41 and the locking recess 441 by bolts.

[0050] Work process:

[0051] When the sliding door is opened, the drive handle 54 first drives the drive shaft 52 to rotate. The drive shaft 52 drives the drive block 47 to rotate through the one-way bearing 46. The drive block 47 drives the locking rod 42 to rotate around the pivot through the connecting rod 45. The locking rod 42 drives the locking hook 43 to disengage from the locking block 442. Then, the drive handle 54 drives the sliding door 3 to slide open along the slide rail 6.

[0052] When closing the sliding door, the sliding door 3 is first driven by the drive handle 54 to slide along the slide rail 6 toward the locking recess 441. When the locking hook 43 contacts the locking block 442, the locking hook 43 is squeezed and the locking rod 42 rotates around the pivot. The locking rod 42 drives the drive block 47 to rotate through the connecting rod 45. The drive shaft 52 does not rotate with the drive block 47 due to the action of the one-way bearing 46. When the locking rod 42 rotates to the point where 41 and 44 are in contact, the locking rod 42 drives the locking hook 43 to engage with the locking block 442 under the action of the torsion spring to complete the locking.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A self-locking sliding door, comprising: A fixed frame (1) is provided, on which a fixed door (2) is installed. A sliding door (3) is slidably connected to the fixed frame (1). A self-locking assembly (4) is installed on the sliding door (3). A driving assembly (5) is installed on the self-locking assembly (4). The self-locking assembly (4) is characterized in that the self-locking assembly (4) includes: a lock body (41), on which the sliding door (3) is installed. Two locking rods (42) are rotatably connected within the lock body (41) via a rotating shaft. The two locking rods (42) are mirror images of each other. The rotating shaft and the lock body are connected in a circular manner. A torsion spring is installed between the fixed rods (42), a locking hook (43) is provided at one end of the locking rod (42), a locking groove mechanism (44) is installed on the fixed frame (1), the locking hook (43) cooperates with the locking groove mechanism (44) to lock, the other end of the locking rod (42) is hinged to one end of the connecting rod (45), a drive assembly (5) is installed on the lock body (41), a drive block (47) is installed on the drive assembly (5) through a one-way bearing (46), and the two ends of the drive block (47) are respectively hinged to the other ends of the two connecting rods (45); The drive assembly (5) includes: a limiting plate (51), the limiting plate (51) is installed on the lock body (41), a drive shaft (52) is rotatably connected to the limiting plate (51), a limiting block (53) is provided on the drive shaft (52), the limiting plate (51) and the limiting block (53) cooperate to limit the rotation angle of the drive shaft (52), a drive block (47) is installed on the drive shaft (52) through a one-way bearing (46), and a drive handle (54) is installed on the drive shaft (52); The locking groove mechanism (44) includes: a locking recess (441), the locking recess (441) is installed on the fixed frame (1), a locking block (442) is installed inside the locking recess (441), and the locking hook (43) cooperates with the locking block (442) to lock.

2. A self-locking sliding door according to claim 1, characterized in that, The locking block (442) is set as a semi-circular block with chamfered edges.

3. A self-locking sliding door according to claim 1, characterized in that, The locking block (442) is set as a trapezoidal block with chamfered edges.

4. A self-locking sliding door according to claim 1, characterized in that, Also includes: The slide rail (6) and the slide groove (7) are provided on the fixed frame (1) and the sliding door (3). The slide rail (6) and the slide groove (7) are slidably connected.

5. A self-locking sliding door according to claim 1, characterized in that, The fixed frame (1) is provided with anti-collision strips (8).

6. A self-locking sliding door according to claim 1, characterized in that, The drive handle (54) is provided with anti-slip texture.

7. A self-locking sliding door according to claim 1, characterized in that, The lock body (41) and the locking recess (441) are both fixedly installed by bolts.

Citation Information

Patent Citations

  • Self-locking single-side sliding door

    CN111472653A

  • Push-pull type door lock

    CN213269384U