A linkage folding door with external double-shaft linear guide rails

Abstract

The utility model discloses a kind of linkage folding doors of external double-axis linear guide rail, to provide a kind of linkage folding doors of external double-axis linear guide rail, structure is simple, stress is uniform, and it can be completely parallel and close to bidirectional folding opening and described linkage folding door of external double-axis linear guide rail.The utility model includes door frame, folding left door and folding right door, the folding left door and the folding right door rotating position are with the both sides of the door frame rotating cooperation, the folding left door and the folding right door are respectively with the double-axis linear guide rail module of the inner side of the upper end and lower end of the door frame cooperation.The utility model is applied to the technical field of folding door.

Description

Technical Field

[0001] This utility model applies to the technical field of folding doors, and particularly relates to a linkage folding door with an external dual-axis linear guide rail. Background Technology

[0002] With the development of industrial automation and intelligence, rack equipment is gradually evolving towards integration and miniaturization, placing higher demands on the spatial adaptability, ease of operation, and protective performance of its outer shell and doors. Against this backdrop, developing a folding door structure suitable for rack shells to address the shortcomings of traditional doors in terms of space occupation, aesthetics, and operational flexibility has become a key requirement for improving the overall performance of rack equipment.

[0003] Existing folding doors are mostly hinged or cam-guided folding doors. Hinged folding doors rely on the complex linkage of multiple hinges to fold, resulting in an inconsistent movement trajectory and insufficient smoothness when opening. The hinge bushings are prone to wear, causing the door panels to sag and further increasing frictional resistance. Users often experience a feeling of sticking and stiffness when opening and closing, sometimes requiring multiple adjustments to achieve a complete closure, leading to a poor user experience. Secondly, the folded state is not compact, leaving room for improvement in space utilization. Traditional hinged doors, after folding, form an angle between the door panels, not perfectly parallel and tightly fitted, failing to maximize the space-saving advantage. Cam-guided folding doors require high precision in the machining and surface smoothness of the cam grooves. The stability of the entire system depends on the strength of the individual upper track and cam groove. For heavy-duty doors, the contact stress between the cam groove and the pulley is high, creating potential points of deformation and wear, making the door prone to wobbling. They have significant disadvantages in terms of load-bearing capacity and long-term durability. If a simple, uniformly stressed, bidirectionally foldable, and perfectly parallel external dual-axis linear guide rail can be designed, the above problems can be solved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a linkage folding door with a simple structure, uniform force distribution, bidirectional folding and opening and completely parallel and tightly attached external dual-axis linear guide rails.

[0005] The technical solution adopted by this utility model is as follows: This utility model includes a door frame, a folding left door and a folding right door. The folding left door and the folding right door are rotatably engaged with the two sides of the door frame. The folding left door and the folding right door are respectively engaged with the double-axis linear guide rail module on the inner side of the upper and lower ends of the door frame.

[0006] Furthermore, the folding left door includes a left door rotating door and a left door sliding door. One side of the left door rotating door is hinged to one side of the door frame, and one side of the left door sliding door is hinged to the other side of the left door rotating door. Both ends of the other side of the left door rotating door are engaged with the dual-axis linear guide rail module.

[0007] Furthermore, the folding right door includes a right door rotating door and a right door sliding door. One side of the right door rotating door is hinged to the other side of the door frame, and one side of the right door sliding door is hinged to the other side of the right door rotating door. Both ends of the other side of the right door rotating door are engaged with the dual-axis linear guide rail module.

[0008] Furthermore, the dual-axis linear guide module includes a slide rail, a sliding plate, several rollers, and a bearing. The slide rail is disposed on the inner side of the upper or lower end of the door frame. Several rollers are disposed on the upper and lower sides of the sliding plate connecting surface and cooperate with the slide rail. The bearing is connected to the lower end of the sliding plate and rotates in cooperation with the rotating seat on the corresponding left or right sliding door.

[0009] Furthermore, a first magnetic block is provided at the lower end of the sliding plate, and the first magnetic block is adsorbed and engaged with the adsorption surface corresponding to the left sliding door or the right sliding door.

[0010] Furthermore, each of the left sliding door and the right sliding door has a plurality of second magnetic blocks on its corresponding side, and the plurality of second magnetic blocks are respectively attracted and engaged with the corresponding adsorption surfaces of the right sliding door and the left sliding door.

[0011] Furthermore, both the left and right revolving doors are equipped with door handles.

[0012] Furthermore, both the left sliding door and the right sliding door are equipped with observation windows.

[0013] The beneficial effects of this utility model are as follows: By completely decoupling the load-bearing guidance from the rotational motion, the aforementioned problems are successfully avoided. Firstly, the precise guidance of the external dual-axis linear guide rails ensures a constant door movement trajectory, resulting in smooth and seamless opening and closing, effectively avoiding the wear and sagging problems of traditional hinge structures and improving the user experience. Secondly, the linear guide rail-driven folding method allows the door to be completely parallel and tightly closed after folding, significantly improving space utilization. Furthermore, the symmetrical force-bearing design of the dual-axis guide rails enhances the overall structural strength, stably supporting heavy doors, reducing the risk of deformation and wear due to stress concentration, and significantly improving the door's load-bearing capacity and long-term durability. It can flexibly adapt to racks of different sizes and easily achieves a fully open state, providing ample operating space for equipment maintenance. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional view of the door frame concealed by this utility model; Figure 3 This is a three-dimensional view of the door frame concealed by this utility model; Figure 4 This is an exploded view of the dual-axis linear guide module. Detailed Implementation

[0015] like Figures 1 to 4 As shown, in this embodiment, the present invention includes a door frame 1, a folding left door 2, and a folding right door 3. The folding left door 2 and the folding right door 3 are rotatably engaged with both sides of the door frame 1. The folding left door 2 and the folding right door 3 are respectively engaged with the dual-axis linear guide rail modules 4 on the inner sides of the upper and lower ends of the door frame 1. Therefore, the folding left door 2 and the folding right door 3 are symmetrically arranged within the door frame 1, and both their upper and lower ends are engaged with the door frame 1 through the dual-axis linear guide rail modules 4.

[0016] like Figures 1 to 3 As shown, in this embodiment, the folding left door 2 includes a left rotating door 21 and a left sliding door 22. One side of the left rotating door 21 is hinged to one side of the door frame 1, and one side of the left sliding door 22 is hinged to the other side of the left rotating door 21. Both ends of the other side of the left rotating door 21 cooperate with the dual-axis linear guide rail module 4. Therefore, the left rotating door 21 and the left sliding door 22 can be folded and stored, saving overall space.

[0017] like Figures 1 to 3 As shown, in this embodiment, the folding right door 3 includes a right door rotating door 31 and a right door sliding door 32. One side of the right door rotating door 31 is hinged to the other side of the door frame 1, and one side of the right door sliding door 32 is hinged to the other side of the right door rotating door 31. Both ends of the other side of the right door rotating door 31 cooperate with the dual-axis linear guide rail module 4. Therefore, the right door rotating door 31 and the right door sliding door 32 have the same structure as the folding left door 2, enabling folding and storage, saving overall space.

[0018] like Figures 1 to 4As shown, in this embodiment, the dual-axis linear guide module 4 includes a slide rail 41, a sliding plate 42, several rollers 43, and a bearing 44. The slide rail 41 is disposed on the inner side of the upper or lower end of the door frame 1. The several rollers 43 are disposed on the upper and lower sides of the connecting surface of the sliding plate 42 and cooperate with the slide rail 41. The bearing 44 is connected to the lower end of the sliding plate 42 and rotates in cooperation with the rotating seat 5 on the corresponding left sliding door 32 or right sliding door 32. Thus, each set of sliding plates 42 is equipped with 6 rollers 43, two sets of which are directly fixed with screws, while the other four sets can be installed using self-aligning nuts. This design has lower requirements for guide rail machining precision, which not only reduces costs but also simplifies the installation process.

[0019] like Figure 3 As shown, in this embodiment, a first magnetic block 6 is provided at the lower end of the sliding plate 42. The first magnetic block 6 is adsorbed and engaged with the corresponding adsorption surface of the left sliding door 22 or the right sliding door 32. Therefore, the first magnetic block 6 achieves lateral adsorption and adhesion between the left sliding door 22 and the right sliding door 32, preventing the sliding doors from becoming loose.

[0020] like Figure 3 As shown, in this embodiment, a plurality of second magnetic blocks 7 are provided on the corresponding sides of the left sliding door 22 and the right sliding door 32. These second magnetic blocks 7 respectively adhere to the corresponding adsorption surfaces of the right sliding door 32 and the left sliding door 22. Therefore, the second magnetic blocks 7 provide relative longitudinal tension to the left sliding door 22 and the right sliding door 32, causing the folding left door 2 and the folding right door 3 to straighten each other and fit against the door frame 1, providing a more enclosed environment.

[0021] like Figure 1 and Figure 2 As shown in the figure, in this embodiment, both the left revolving door 21 and the right revolving door 31 are equipped with door handles 8. Therefore, the door handles 8 are used to operate the folding left door 2 and the folding right door 3 to open or close.

[0022] like Figure 1 As shown in this embodiment, both the left sliding door 22 and the right sliding door 32 are equipped with observation windows 9. Therefore, the observation windows 9 are made of acrylic material, which ensures both service life and overall strength while allowing for visualization of the interior of the cabinet.

[0023] The working principle of this utility model is as follows: When the operator pulls the door handle 8, the left rotating door 21 pulls the left sliding door 22 away from the attraction force of the first magnetic block 6 and the second magnetic block 7 on the right sliding door 32. The rotating seat 5 and the bearing 44 rotate relative to each other, driving several rollers 43 to slide on the slide rail 1. The left sliding door 22 and the left rotating door 21 move closer to each other and fold, finally closing up to one side of the frame. The folding right door 3 opens in the same way as the folding left door 2. When it is necessary to close the folding door, the operator pulls the door handle 8 to move in the opposite direction, causing the folding left door 2 or the folding right door 3 to rotate and open, and stably attract to the door frame 1 through the first magnetic block 6 and the second magnetic block 7.

[0024] Although the embodiments of this utility model are described with reference to actual solutions, they do not constitute a limitation on the meaning of this utility model. For those skilled in the art, modifications to the implementation schemes and combinations with other schemes based on this specification are obvious.

Claims

1. A linkage folding door with external dual-axis linear guide rails, comprising a door frame (1), a folding left door (2), and a folding right door (3), characterized in that: The folding left door (2) and the folding right door (3) rotate to cooperate with the two sides of the door frame (1). The folding left door (2) and the folding right door (3) cooperate with the double-axis linear guide rail module (4) on the upper and lower inner sides of the door frame (1), respectively.

2. The linkage folding door with external dual-axis linear guide rails according to claim 1, characterized in that: The folding left door (2) includes a left door rotating door (21) and a left door sliding door (22). One side of the left door rotating door (21) is hinged to one side of the door frame (1), and one side of the left door sliding door (22) is hinged to the other side of the left door rotating door (21). The two ends of the other side of the left door rotating door (21) are engaged with the dual-axis linear guide rail module (4).

3. A linkage folding door with an external dual-axis linear guide rail as described in claim 2, characterized in that: The folding right door (3) includes a right door rotating door (31) and a right door sliding door (32). One side of the right door rotating door (31) is hinged to the other side of the door frame (1), and one side of the right door sliding door (32) is hinged to the other side of the right door rotating door (31). The two ends of the other side of the right door rotating door (31) are engaged with the dual-axis linear guide rail module (4).

4. A linkage folding door with an external dual-axis linear guide rail as described in claim 3, characterized in that: The dual-axis linear guide module (4) includes a slide rail (41), a sliding plate (42), several rollers (43) and a bearing (44). The slide rail (41) is located on the inner side of the upper or lower end of the door frame (1). Several rollers (43) are located on the upper and lower sides of the connecting surface of the sliding plate (42) and cooperate with the slide rail (41). The bearing (44) is connected to the lower end of the sliding plate (42). The bearing (44) is rotatably engaged with the rotating seat (5) on the corresponding left sliding door (32) or right sliding door (32).

5. A linkage folding door with an external dual-axis linear guide rail according to claim 4, characterized in that: The lower end of the sliding plate (42) is provided with a first magnetic block (6), which is adsorbed and cooperates with the adsorption surface corresponding to the left sliding door (22) or the right sliding door (32).

6. A linkage folding door with an external dual-axis linear guide rail as described in claim 3, characterized in that: The left sliding door (22) and the right sliding door (32) are each provided with a number of second magnetic blocks (7) on their respective sides. The number of second magnetic blocks (7) are respectively adsorbed and cooperated with the adsorption surfaces corresponding to the right sliding door (32) and the left sliding door (22).

7. A linkage folding door with an external dual-axis linear guide rail according to claim 3, characterized in that: Both the left revolving door (21) and the right revolving door (31) are equipped with door handles (8).

8. A linkage folding door with an external dual-axis linear guide rail as described in claim 3, characterized in that: Both the left sliding door (22) and the right sliding door (32) are equipped with observation windows (9).

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