Three-door inter-moving structure linkage door

Abstract

A three-door inter-moving structure linkage door, comprising a door frame, a door leaf assembly and a linkage device, the door leaf assembly comprising an inner door leaf, a middle door leaf and an outer door leaf arranged in sequence from inside to outside, the top parts of the inner door leaf, the middle door leaf and the outer door leaf being connected to the linkage device respectively and being hung inside the door frame through the linkage device; the linkage device comprising a first linkage mechanism, a second linkage mechanism and a third linkage mechanism corresponding to the inner door leaf, the middle door leaf and the outer door leaf respectively; the first linkage mechanism, the second linkage mechanism and the third linkage mechanism can be adapted to the width of the inner door leaf, the middle door leaf and the outer door leaf respectively by adjusting the length of the first adjusting assembly, the second adjusting assembly and the third adjusting assembly respectively, without cutting and tailoring, reducing assembly time, enabling the linkage device to adapt to door leaf assemblies of various widths and improving the adaptability of the product.

Description

Technical Field

[0001] This utility model belongs to the field of movable door technology, specifically relating to a three-door interconnected door structure. Background Technology

[0002] Three-door interlocking doors, with their high space utilization, flexible opening methods, and excellent passage efficiency, are widely used in densely populated places such as shopping malls, office buildings, hospitals, and subway stations. They are also gradually entering the home decoration field, used for partitioning and passage in spaces such as bathrooms, kitchens, balconies, and dressing rooms. The core advantage of this type of interlocking door lies in the synchronous or orderly movement of multiple door panels through a linkage mechanism. The opening width can be adjusted according to actual needs, balancing convenient passage with spatial enclosure. Therefore, it holds an irreplaceable position in various building decorations and public facility constructions.

[0003] The existing three-door interlocking structure linkage door can be referenced in Chinese patent document CN220522377U, which discloses a linkage door including a door frame, a glass door assembly, and a linkage component. The door frame has a first sliding groove; the glass door assembly includes a driven door and an active door; the driven door and the active door are respectively slidably installed on the door frame. The linkage component includes a linkage aluminum profile, a linkage pulley component, and an active door connector; one end of the active door connector is fixedly connected to the active door, and the other end of the active door connector is fixedly connected to the linkage aluminum profile; the linkage aluminum profile has a second sliding groove; the linkage pulley component includes multiple linkage pulleys and a first connecting plate; the first connecting plate is connected to the driven door through a connector; the bottom of the linkage pulley is slidably installed in the first sliding groove, and the top of the linkage pulley is engaged in the second sliding groove. The active door and the driven door are linked through a simple linkage component, making the linkage door structure simple and reliable.

[0004] However, the existing three-door interlocking structure linkage aluminum profiles have defects such as the inability to freely adjust the length according to the door width, the need for on-site cutting and trimming leading to low assembly efficiency, narrow applicability range, and inapplicability to special scenarios. There is an urgent need for a technical solution that can solve the above problems, so as to improve the versatility of the product, reduce assembly costs, improve construction efficiency, and expand the scope of application of the product. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a three-door interlocking structure linkage door.

[0006] The technical solution provided by this utility model is as follows: A three-door interlocking structure linkage door includes a door frame, door leaf assembly, and linkage device. The door leaf assembly includes an inner door leaf, a middle door leaf, and an outer door leaf arranged sequentially from the inside to the outside. The tops of the inner door leaf, middle door leaf, and outer door leaf are respectively connected to the linkage device and suspended on the inside of the door frame through the linkage device. The linkage device includes a first linkage mechanism, a second linkage mechanism, and a third linkage mechanism that are respectively connected to the inner door leaf, middle door leaf, and outer door leaf. The first linkage mechanism includes a first adjusting component with adjustable length and two first connecting components for connecting the inner door leaf, with the two first connecting components respectively connected to both ends of the first adjusting component; The second linkage mechanism includes a second adjusting component with adjustable length and two second connecting components for connecting the inner door leaf, with the two second connecting components respectively connected to both ends of the second adjusting component; The third linkage mechanism includes a length-adjustable third adjustment component and two third connection components for connecting the inner door leaf, with the two third connection components respectively connected to both ends of the third adjustment component.

[0007] In this utility model, the first adjusting component is a telescopic adjusting structure. The first adjusting component includes a first connecting rod, a second connecting rod, and a locking member. The first connecting rod and the second connecting rod are movably connected in the length direction. The locking member is connected to the first connecting rod and the second connecting rod. The locking member is used to control the relative movement and locking of the first connecting rod and the second connecting rod.

[0008] In this invention, the first linkage rod has a sliding groove extending along the length direction, and the second linkage rod has a sliding strip extending along the length direction. The first linkage rod and the second linkage rod are movably connected by sliding cooperation based on the sliding strip being inserted into the sliding groove.

[0009] In this utility model, the linkage device further includes two linkage steel wire ropes. The two ends of the second linkage mechanism are provided with rope wheels. The linkage mechanism, the first linkage mechanism, the second linkage mechanism and the third linkage mechanism are connected and linked through the two linkage steel wire ropes to achieve linkage.

[0010] In this invention, the length of the second linkage mechanism is not equal to the lengths of the first linkage mechanism and the third linkage mechanism.

[0011] In this utility model, the linkage device further includes a mounting bracket for pre-installing the first linkage mechanism, the second linkage mechanism, and the third linkage mechanism. The first linkage mechanism, the second linkage mechanism, and the third linkage mechanism are all fixed on the mounting bracket. The first linkage mechanism, the second linkage mechanism, and the third linkage mechanism are respectively provided with a first connecting end, a second connecting end, and a third connecting end for connecting with the inner door leaf, the middle door leaf, and the outer door leaf. The mounting bracket is provided with through holes that allow the first connecting end, the second connecting end, and the third connecting end to be exposed.

[0012] In this utility model, the linkage door also includes an anti-sway mechanism for preventing the door leaf assembly from swinging. The bottom of the inner door leaf, the middle door leaf and the outer door leaf are all equipped with anti-sway mechanisms. The door frame includes a lower rail located at the bottom. The door leaf assembly is connected to the lower rail through the anti-sway mechanism. The anti-sway mechanism is adapted to the lower rail.

[0013] In this utility model, the anti-sway mechanism includes a bouncing wheel, a bouncing wheel shaft, a connecting shaft, a torsion spring, an anti-sway outer frame, and an anti-sway bracket. The two ends of the bouncing wheel shaft extend from both sides of the bouncing wheel and are connected to the anti-sway bracket. The anti-sway bracket is rotatably connected to the anti-sway outer frame through the connecting shaft. The torsion spring is fitted on the outside of the connecting shaft. One end of the torsion spring is fixed to the anti-sway outer frame, and the other end is fixed to the anti-sway bracket. The anti-sway outer frame is fixedly connected to the bottom of the door assembly.

[0014] In this utility model, the anti-sway mechanism further includes an adjustment mechanism for adjusting the position and bounce amplitude of the bouncing wheel. The adjustment mechanism includes an adjustment bolt and an adjustment support rod. The two ends of the adjustment support rod extend from both sides of the anti-sway bracket and are connected to the anti-sway outer frame. The rod of the adjustment bolt passes through the anti-sway outer frame and is threaded to the rod of the adjustment support rod.

[0015] In this utility model, the outer side of the bouncing wheel is provided with a square groove that mates with the lower rail, and the lower rail is provided with a square track that is adapted to the square groove. The bouncing wheel and the lower rail mate through the square groove and the square track.

[0016] The beneficial effects of this utility model are: when the door leaf is connected to the linkage device, the lengths of the first adjustment component, the second adjustment component, and the third adjustment component can be adjusted respectively, so that the first linkage mechanism, the second linkage mechanism, and the third linkage mechanism can be adapted to the widths of the inner door leaf, the middle door leaf, and the outer door leaf respectively, without the need for cutting and trimming, reducing assembly time, and enabling the linkage device to adapt to a variety of door leaf components of different widths, thereby improving the adaptability of the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure for installing the linkage door in this embodiment; Figure 2 This is an exploded view of the linkage door in this embodiment; Figure 3 This is a schematic diagram showing the connection between the door panel assembly and the linkage device in this embodiment; Figure 4 This is a schematic diagram of the structure of the first linkage mechanism in this embodiment; Figure 5 This is a schematic diagram of the second linkage mechanism in this embodiment; Figure 6 This is a schematic diagram of the third linkage mechanism in this embodiment; Figure 7 This is a schematic diagram of the structure of the first adjustment component in this embodiment; Figure 8 This is a schematic diagram of the top structure of the linkage device in the pre-installed state in this embodiment; Figure 9 This is a schematic diagram of the bottom structure of the linkage device in the pre-installed state in this embodiment; Figure 10 This is a schematic diagram of the anti-sway mechanism in this embodiment; Figure 11 This is an exploded view of the anti-sway mechanism in this embodiment. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0019] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc., then the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0021] See Figures 1 to 11This embodiment discloses a three-door interlocking structure linkage door, including a door frame 1, a door leaf assembly 2, and a linkage device 3. The door leaf assembly 2 includes an inner door leaf 21, a middle door leaf 22, and an outer door leaf 23 arranged sequentially from the inside to the outside. The tops of the inner door leaf 21, the middle door leaf 22, and the outer door leaf 23 are respectively connected to the linkage device 3 and suspended on the inside of the door frame 1 through the linkage device 3. The linkage device 3 includes a first linkage mechanism 31, a second linkage mechanism 32, and a third linkage mechanism 33 respectively corresponding to the inner door leaf 21, the middle door leaf 22, and the outer door leaf 23. The first linkage mechanism 31 includes a first adjustment component 311 with adjustable length and a component for connecting... The inner door leaf 21 has two first connecting components 312, which are respectively connected to both ends of the first adjusting component 311. Similarly, the second linkage mechanism 32 includes a second adjusting component 321 with adjustable length and two second connecting components 322 for connecting the inner door leaf 21, which are respectively connected to both ends of the second adjusting component 321. The third linkage mechanism 33 includes a third adjusting component 331 with adjustable length and two third connecting components 332 for connecting the inner door leaf 21, which are respectively connected to both ends of the third adjusting component 331. When the door leaf is connected to the linkage device 3, the lengths of the first adjusting component 311, the second adjusting component 321, and the third adjusting component 331 can be adjusted to adapt the widths of the inner door leaf 21, the middle door leaf 22, and the outer door leaf 23, respectively, without the need for cutting or trimming, reducing assembly time. This allows the linkage device 3 to adapt to various door leaf components 2 with different widths, improving the product's adaptability.

[0022] Specifically, the first adjusting component 311 is a telescopic adjusting structure, comprising a first connecting rod 3111, a second connecting rod 3112, and a locking member 3113. The first connecting rod 3111 and the second connecting rod 3112 are movably inserted into each other in the length direction. The locking member 3113 is connected to the first connecting rod 3111 and the second connecting rod 3112, and is used to control the relative movement and locking of the first connecting rod 3111 and the second connecting rod 3112. The first connecting rod 3111 has a sliding groove 3114 extending in the length direction, and the second connecting rod 3112 has a sliding strip 3115 extending in the length direction. The first connecting rod 3111 and the second connecting rod 3112 are movably inserted into each other based on the sliding engagement of the sliding strip 3115 within the sliding groove 3114. When the first adjusting component 311 needs length adjustment, simply loosen the locking member 3113 to allow the first connecting rod 3111 and the second connecting rod 3112 to move relative to each other. After adjusting to the set length, tighten the locking member 3113. The structures of the first adjusting component 311, the second adjusting component 321, and the third adjusting component 331 are all identical. Furthermore, when the door width is very small, and even adjusting the first adjusting component 311 to its shortest state is insufficient for installation, the minimum length of the first adjusting component 311 can be shortened by cutting the lengths of the first connecting rod 3111 and the second connecting rod 3112, thereby accommodating extremely narrow door panels.

[0023] In a preferred embodiment, the linkage device 3 further includes two linkage steel wire ropes 34. The two ends of the second linkage mechanism 32 are provided with rope winding wheels 323. One end of one linkage steel wire rope 34 is fixed to the left end of the first linkage mechanism 31, and the other end passes over the rope winding wheel 323 at the right end of the second linkage mechanism 32 and is fixed to the left end of the third linkage mechanism 33. One end of the other linkage steel wire rope 34 is fixed to the right end of the first linkage mechanism 31, and the other end passes over the rope winding wheel 323 at the left end of the second linkage mechanism 32 and is fixed to the right end of the third linkage mechanism 33. The two linkage steel wire ropes 34 connect and drive the first linkage mechanism 31, the second linkage mechanism 32 and the third linkage mechanism 33 to achieve linkage. Furthermore, the length of the second linkage mechanism 32 is not equal to the lengths of the first linkage mechanism 31 and the third linkage mechanism 33, thus forming a staggered design between the second linkage mechanism 32 and the first linkage mechanism 31 and the third linkage mechanism 33. The linkage wire rope 34 can reserve sufficient buffer length, and the tensioning installation of the linkage wire rope 34 can also alleviate the pressure of the rope wheel 323, reduce resistance, and make the door assembly 2 close more smoothly.

[0024] Since the linkage device 3 includes multiple components, and the first linkage mechanism 31, the second linkage mechanism 32, and the third linkage mechanism 33 are linked by the linkage wire rope 34 but are not fixedly connected to each other, they need to be assembled on-site. Special calibration tools are required for installation and calibration, and the installation technicians are highly skilled. Therefore, to address this issue, this embodiment pre-installs the linkage device 3. Specifically, the linkage device 3 also includes a mounting frame 4 for pre-installing the first linkage mechanism 31, the second linkage mechanism 32, and the third linkage mechanism 33. The first linkage mechanism 31, the second linkage mechanism 32, and the third linkage mechanism 33 are all fixed on the mounting frame 4. The first linkage mechanism 31, the second linkage mechanism 32, and the third linkage mechanism 33 are respectively provided with a first connecting end 313, a second connecting end 324, and a third connecting end 333 for connecting with the inner door leaf 21, the middle door leaf 22, and the outer door leaf 23. The mounting frame 4 is provided with through holes 41 that allow the first connecting end 313, the second connecting end 324, and the third connecting end 333 to be exposed. Before leaving the factory, the first linkage mechanism 31, the second linkage mechanism 32 and the third linkage mechanism 33 are pre-installed on the mounting frame 4 to form an assembly component. After arriving at the construction site, the linkage device 3 is assembled with the door leaf assembly 2, and then the mounting frame 4 can be disassembled. This can improve the installation efficiency of the linkage device 3 and reduce the installation difficulty, eliminating the tedious operation of installing the linkage device 3 on the construction site.

[0025] In a preferred embodiment, the linkage door further includes an anti-sway mechanism 5 to prevent the door leaf assembly 2 from swinging. The bottom of the inner door leaf 21, middle door leaf 22, and outer door leaf 23 are all equipped with anti-sway mechanisms 5. The door frame 1 includes an upper rail 11 at the top and a lower rail 12 at the bottom. The door leaf assembly 2 is suspended from the upper rail 11 via a linkage device 3. The door leaf assembly 2 is connected to the lower rail 12 via the anti-sway mechanism 5. The anti-sway mechanism 5 is adapted to the lower rail 12, so that each door leaf can move smoothly under the action of the anti-sway mechanism 5 during movement, keeping each door parallel and equidistant from each other. Furthermore, due to deviations in the decoration and construction leading to substandard ground flatness, or if the upper rail 11 is not parallel to the ground after installation, the gap between the door leaf and the lower rail 12 will fluctuate during movement. If the gap is too small, the door leaf may jam and be unable to move; if the gap is too large, it may cause the lower wheel to derail. To solve this problem, the anti-sway mechanism 5 in this embodiment includes a bouncing wheel 51, a bouncing wheel shaft 52, a connecting shaft 53, a torsion spring 54, an anti-sway outer frame 55, and an anti-sway bracket 56. The two ends of the bouncing wheel shaft 52 extend from both sides of the bouncing wheel 51 and connect to the anti-sway bracket 56. The anti-sway bracket 56 is rotatably connected to the anti-sway outer frame 55 via the connecting shaft 53. The torsion spring 54 is fitted onto the outside of the connecting shaft 53, with one end fixed to the anti-sway outer frame 55 and the other end fixed to the anti-sway bracket 56. The anti-sway outer frame 55 is fixedly connected to the bottom of the door assembly 2. When the door moves and encounters uneven ground or uneven lower rail 12, the bouncing wheel 51 can float up and down under the elastic force of the torsion spring 54 to adapt, always maintaining contact with the lower rail 12 during movement. In addition, the anti-sway mechanism also includes an adjustment mechanism for adjusting the position and bouncing amplitude of the bouncing wheel 51. The adjustment mechanism includes an adjustment bolt 57 and an adjustment rod 58. Both ends of the adjustment rod 58 extend from both sides of the anti-sway bracket 56 and connect to the anti-sway outer frame 55. The rod of the adjustment bolt 57 passes through the anti-sway outer frame 55 and is threaded to the rod of the adjustment rod 58. When the adjustment bolt 57 is turned, the anti-sway bracket 56 causes the bouncing wheel 51 to change position and the preload of the torsion spring 54 to change. Preferably, the outer side of the bouncing wheel 51 is provided with a square groove 511 that mates with the lower rail 12. The lower rail 12 is provided with a square track that matches the square groove 511. The bouncing wheel 51 and the lower rail 12 mate through the square groove 511 and the square track. Compared to the traditional circular groove structure, the square groove 511 provides better anti-sway performance and is less prone to derailment.

[0026] In a preferred embodiment, each of the first connecting component 312, the second connecting component 322, and the third connecting component 332 is provided with a roller assembly 35, which cooperates with the upper rail 11 to allow the door leaf to move along the upper rail 11. A buffer 36 is provided between each of the two first connecting components 312 and between each of the two third connecting components 332.

[0027] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A three-door interlocking structure linkage door, characterized in that: The system includes a door frame (1), a door leaf assembly (2), and a linkage device (3). The door leaf assembly (2) includes an inner door leaf (21), a middle door leaf (22), and an outer door leaf (23) arranged sequentially from the inside to the outside. The tops of the inner door leaf (21), the middle door leaf (22), and the outer door leaf (23) are respectively connected to the linkage device (3) and are suspended on the inside of the door frame (1) by the linkage device (3). The linkage device (3) includes a first linkage mechanism (31), a second linkage mechanism (32), and a third linkage mechanism (33) respectively connected to the inner door leaf (21), the middle door leaf (22), and the outer door leaf (23). The first linkage mechanism (31) includes a first adjustment component (311) with adjustable length and two first connection components (312) for connecting the inner door leaf (21), with the two first connection components (312) respectively connected to the two ends of the first adjustment component (311); The second linkage mechanism (32) includes a second adjustment component (321) with adjustable length and two second connection components (322) for connecting the inner door leaf (21), the two second connection components (322) being respectively connected to the two ends of the second adjustment component (321); The third linkage mechanism (33) includes a third adjustment component (331) with adjustable length and two third connection components (332) for connecting the inner door leaf (21), with the two third connection components (332) respectively connected to the two ends of the third adjustment component (331).

2. The three-door interlocking structure linkage door according to claim 1, characterized in that: The first adjustment component (311) is a telescopic adjustment structure. The first adjustment component (311) includes a first linkage rod (3111), a second linkage rod (3112), and a locking member (3113). The first linkage rod (3111) and the second linkage rod (3112) are movably inserted in the length direction. The locking member (3113) is connected to the first linkage rod (3111) and the second linkage rod (3112). The locking member (3113) is used to control the relative movement and locking of the first linkage rod (3111) and the second linkage rod (3112).

3. A three-door interlocking structure linkage door according to claim 2, characterized in that: The first linkage (3111) has a sliding groove (3114) extending along the length direction inside, and the second linkage (3112) has a sliding bar (3115) extending along the length direction. The first linkage (3111) and the second linkage (3112) are movably connected by sliding cooperation based on the sliding bar (3115) being inserted into the sliding groove (3114).

4. A three-door interlocking structure linkage door according to claim 1, characterized in that: The linkage device (3) also includes two linkage steel wire ropes (34). The two ends of the second linkage mechanism (32) are provided with rope wheels (323). The linkage mechanism (34) is connected to drive the first linkage mechanism (31), the second linkage mechanism (32) and the third linkage mechanism (33) to achieve linkage.

5. A three-door interlocking structure linkage door according to claim 1, characterized in that: The length of the second linkage mechanism (32) is not equal to the length of the first linkage mechanism (31) and the third linkage mechanism (33).

6. A three-door interlocking structure linkage door according to claim 1, characterized in that: The linkage device (3) further includes a mounting bracket (4) for pre-installing the first linkage mechanism (31), the second linkage mechanism (32) and the third linkage mechanism (33). The first linkage mechanism (31), the second linkage mechanism (32) and the third linkage mechanism (33) are all fixed on the mounting bracket (4). The first linkage mechanism (31), the second linkage mechanism (32) and the third linkage mechanism (33) are respectively provided with a first connecting end (313), a second connecting end (324) and a third connecting end (333) for connecting with the inner door leaf (21), the middle door leaf (22) and the outer door leaf (23). The mounting bracket (4) is provided with through holes (41) for exposing the first connecting end (313), the second connecting end (324) and the third connecting end (333).

7. A three-door interlocking structure linkage door according to claim 1, characterized in that: The linkage door also includes an anti-sway mechanism (5) for preventing the door leaf assembly (2) from swinging. The bottom of the inner door leaf (21), middle door leaf (22) and outer door leaf (23) are all equipped with anti-sway mechanisms (5). The door frame (1) includes a lower rail (12) located at the bottom. The door leaf assembly (2) is connected to the lower rail (12) through the anti-sway mechanism (5). The anti-sway mechanism (5) is adapted to the lower rail (12).

8. A three-door interlocking structure linkage door according to claim 7, characterized in that: The anti-sway mechanism (5) includes a bouncing wheel (51), a bouncing wheel shaft (52), a connecting shaft (53), a torsion spring (54), an anti-sway outer frame (55), and an anti-sway bracket (56). The two ends of the bouncing wheel shaft (52) extend from both sides of the bouncing wheel (51) and are connected to the anti-sway bracket (56). The anti-sway bracket (56) is rotatably connected to the anti-sway outer frame (55) through the connecting shaft (53). The torsion spring (54) is fitted on the outside of the connecting shaft (53). One end of the torsion spring (54) is fixed to the anti-sway outer frame (55), and the other end is fixed to the anti-sway bracket (56). The anti-sway outer frame (55) is fixedly connected to the bottom of the door assembly (2).

9. A three-door interlocking structure linkage door according to claim 8, characterized in that: The anti-sway mechanism also includes an adjustment mechanism for adjusting the position and bounce amplitude of the bouncing wheel (51). The adjustment mechanism includes an adjustment bolt (57) and an adjustment rod (58). The two ends of the adjustment rod (58) extend from both sides of the anti-sway bracket (56) and are connected to the anti-sway outer frame (55). The rod of the adjustment bolt (57) passes through the anti-sway outer frame (55) and is threaded to the rod of the adjustment rod (58).

10. A three-door interlocking structure linkage door according to claim 8, characterized in that: The outer side of the bouncing wheel (51) is provided with a square groove (511) that mates with the lower rail (12). The lower rail (12) is provided with a square track that mates with the square groove (511). The bouncing wheel (51) and the lower rail (12) mate with the square track through the square groove (511).

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