Folding door coupling structure

Abstract

This utility model discloses a folding door connection structure, which includes a hanging wheel assembly, hinges, a door body, and a guide rail. The hanging wheel assembly includes a hanging wheel seat, rollers, a sliding seat, bolts, and a plane bearing. The sliding seat has a through cavity, through which bolts pass and connect to the hanging wheel seat to connect the hanging wheel seat and the sliding seat into a whole. The hanging wheel seat rotates relative to the sliding seat via bolts, and the plane bearing is placed inside the through cavity. Bolts passing through the through cavity connect with the plane bearing to reduce the friction generated when the hanging wheel seat rotates relative to the sliding seat. The hanging wheel seat is connected to the guide rail, and the sliding seat is connected to the door body. Adjacent door bodies are hinged together by hinges. It has the advantages of simple structure, compact fit, and reasonable design; therefore, it is a product with superior performance in both technical and economic aspects.

Description

Technical Field

[0001] This utility model mainly relates to a folding door connection structure. Background Technology

[0002] Folding doors are widely used in workshops, shopping malls, office buildings, showrooms, and home decoration due to their advantages such as ease of use, space saving, and aesthetic appeal. The common moving units of a folding door include the driving door leaf, the driven door leaf, the guide rail, and the linkage mechanism. The linkage mechanism generally includes a roller seat and a sliding seat. The roller seat connects to the guide rail, and the sliding seat connects to the door body. The sliding seat and roller seat are bolted together. However, existing bolts are directly attached to the sliding seat. With increased rotation, the friction between the bolt and the sliding seat can cause the bolt to loosen from the roller, leading to a safety hazard. Therefore, we have improved the linkage mechanism to enhance connection safety. Utility Model Content

[0003] To solve at least one of the above problems, this utility model proposes a new structural solution. The folding door connection structure adopts the following technical solution:

[0004] A folding door connection structure includes a roller assembly, hinges, a door body, and a guide rail;

[0005] The roller assembly includes a roller seat, a roller, a sliding seat, bolts, and a thrust bearing. The sliding seat has a through cavity, through which bolts pass to connect to the roller seat, thereby connecting the roller seat and the sliding seat into a whole. The roller seat is rotated relative to the sliding seat by bolts, and the thrust bearing is placed in the through cavity. The bolts passing through the through cavity are connected to the thrust bearing, thereby reducing the frictional force generated when the roller seat rotates relative to the sliding seat.

[0006] The hanging wheel seat is connected to the guide rail, the sliding seat is connected to the door body, and adjacent door bodies are hinged together by hinges.

[0007] Preferably, rollers are located on both sides of the hanging wheel base, and a follower wheel is provided at the bottom of the hanging wheel base, with the follower wheel perpendicular to the rollers.

[0008] Preferably, the threaded section of the bolt is locked in the pulley seat, and the bolt head is larger than the diameter of the through cavity to prevent the bolt from coming out of the sliding seat, while the bolt head can rotate freely in the through cavity.

[0009] Preferably, the guide rail is provided with a sliding cavity for the hanging wheel seat to be inserted, and the door body is provided with a slot for the sliding seat to be inserted. The sliding cavity has a buffer air rod that is movably connected to the hanging wheel seat, so as to reduce the impact of the hanging wheel seat movement through the buffer cylinder.

[0010] Preferably, the hinge has a mating portion, and adjacent hinges are hinged together through the mating portion, and the mating portion has a clearance space.

[0011] Preferably, the hinge has a mating portion, and adjacent hinges are hinged together through the mating portion, and the mating portion has a clearance space.

[0012] Preferably, the end of the mating part away from the hinge extends obliquely into an elbow, and the edge of the elbow is arc-shaped.

[0013] Preferably, the thickness of the elbow is less than the thickness of the joint.

[0014] The beneficial effects of this utility model compared with the prior art are:

[0015] This solution adds a flat bearing to the through cavity of the sliding joint to abut the bolt. This avoids direct contact between the bolt head and the through cavity, transforming pulley friction into rolling friction, significantly reducing rotational resistance and preventing the screw from coming loose from the hanging wheel when the door folds and rotates, thus improving safety. It boasts advantages such as simple structure, compact fit, and reasonable design; therefore, it is a product with superior technical and economic performance. Attached Figure Description

[0016] Figure 1 A schematic diagram of the folding door connection structure in a preferred embodiment of this utility model;

[0017] Figure 2 An exploded view of the folding door connection structure in a preferred embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the hanging wheel assembly in a preferred embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the guide rail in a preferred embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the hinge connection in a preferred embodiment of the present invention. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] The preferred embodiment provided by this utility model is as follows: Figures 1-5 As shown, a folding door connection structure includes a roller assembly 1, a hinge 2, a door body 3, and a guide rail 4;

[0025] The roller assembly 1 includes a roller seat 5, a roller 6, a sliding seat 7, a bolt 8, and a flat bearing 9. The sliding seat 7 has a through cavity 71, which extends vertically through the sliding seat 7. The bolt 8 passes through the through cavity 71 and connects to the roller seat 5 to connect the roller seat 5 and the sliding seat 7 into a whole. The roller seat 5 is provided with corresponding screw holes. The roller seat 5 is rotated relative to the sliding seat 7 by the bolt 8, and the flat bearing 9 is placed in the through cavity 71. The bolt 8, which passes through the through cavity 71, is connected to the flat bearing 9 to reduce the frictional force generated when the roller seat 5 rotates relative to the sliding seat 7.

[0026] The hanging wheel seat 5 is connected to the guide rail 4, and the sliding seat 7 is connected to the door body 3. Adjacent door bodies 3 are hinged together by hinges 2. The hinge 2 is provided with a mating part 21, which is perpendicular to the hinge 2. Adjacent hinges 2 are hinged together by their mating parts 21. The mating part 21 is provided with a clearance 22 to facilitate smooth rotation between the hinges 2. The hinge can be connected by a pin. The hinges 2 are installed at the ends of their respective door bodies 3.

[0027] Rollers 6 are located on both sides of the hanging wheel base 5. A follower wheel 51 is located at the bottom of the hanging wheel base 5, perpendicular to the rollers 6. The follower wheel 5 adopts a conventional free-rotating wheel structure. An axle is transversely connected to the hanging wheel base 5, with both ends of the axle protruding from the sides of the hanging wheel base 5. Rollers 6 are mounted at both ends of the axle, with the height of the rollers 6 exceeding the height of the hanging wheel base 5, so that the hanging wheel assembly 1 can be moved along the guide rail 4 via the rollers 6.

[0028] The threaded section of bolt 8 is locked onto the pulley seat 5. The threaded head of bolt 8 is larger than the diameter of the through cavity 71 to prevent bolt 8 from coming out of the sliding seat 7, and the threaded head of bolt 8 can rotate freely in the through cavity 71. Adhesive is applied to the bolt to improve the connection strength.

[0029] The guide rail 4 has a sliding cavity 41 for the roller seat 5 to be inserted, and the door body 3 has a slot 31 for the sliding seat 7 to be inserted. The sliding cavity 41 has a buffer air rod 42 that is movably connected to the roller seat 5 to reduce the impact of the roller seat 5's movement through the buffer cylinder. The sliding cavity 41 is correspondingly provided with a support edge 43 for supporting the roller 6.

[0030] The guide rail 4 and the door body 3 are connected by a hanging wheel assembly 1. The hanging wheel assembly 1 includes a hanging wheel seat 5, a sliding seat 7, and bolts 8. The hanging wheel seat 5 is used to connect the guide rail 4, and the sliding seat 7 is used to connect the door body. The hanging wheel seat 5 and the sliding seat 7 are connected together by bolts 8. The hanging wheel seat 5 is equipped with rollers 6 and follower wheels 51. The rollers 6 are used to assist the hanging wheel seat 5 in rolling within the sliding cavity 41. The follower wheels 51 are located at the opening of the sliding cavity 41 to limit the lateral swing of the hanging wheel assembly 1. To solve the problem that the bolt directly contacts the through cavity of the sliding seat, causing the bolt to loosen from the hanging wheel due to friction during rotation, this structure adds a plane bearing 9 inside the through cavity 71 to convert sliding friction into rolling friction, significantly reducing friction and making rotation smoother. The mating part 21 extends vertically out of the hinge 2, providing space for hinges on adjacent door bodies to be hinged. The hinge method uses existing pin connections. To facilitate relative rotation of the hinges, the end of the mating portion 21 furthest from the hinge 2 extends at an angle into an elbow 23. The edge of the elbow 23 is arc-shaped to facilitate relative rotation between the elbows 23. The thickness of the elbow 23 is less than the thickness of the mating portion; furthermore, the thickness of the elbow 23 is approximately half the thickness of the mating portion 21. This ensures that when the elbows 23 of two adjacent hinges are connected, the two hinged elbows 23 form an upper and lower structure, and the combined thickness is consistent with the thickness of the mating portion, resulting in a neater and more aesthetically pleasing overall appearance. The elbow 23 is designed at an angle to reserve a clearance 22 at the mating portion position, facilitating the rotational engagement of the mating portion and achieving a larger turning radius.

[0031] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification 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.

[0032] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A folding door connection structure, characterized in that: It includes a roller assembly, hinges, door body, and guide rails; The roller assembly includes a roller seat, a roller, a sliding seat, bolts, and a thrust bearing. The sliding seat has a through cavity, through which bolts pass to connect to the roller seat, thereby connecting the roller seat and the sliding seat into a whole. The roller seat is rotated relative to the sliding seat by bolts, and the thrust bearing is placed in the through cavity. The bolts passing through the through cavity are connected to the thrust bearing, thereby reducing the frictional force generated when the roller seat rotates relative to the sliding seat. The hanging wheel seat is connected to the guide rail, the sliding seat is connected to the door body, and adjacent door bodies are hinged together by hinges.

2. The folding door connection structure according to claim 1, characterized in that: Rollers are located on both sides of the hanging wheel base, and a follower wheel is located at the bottom of the hanging wheel base, with the follower wheel perpendicular to the roller.

3. The folding door connection structure according to claim 1, characterized in that: The threaded section of the bolt is locked in the pulley seat. The bolt head is larger than the diameter of the through cavity to prevent the bolt from coming out of the sliding seat, and the bolt head can rotate freely in the through cavity.

4. The folding door connection structure according to claim 1, characterized in that: The guide rail has a sliding cavity for the hanging wheel seat to be inserted, and the door body has a slot for the sliding seat to be inserted. The sliding cavity has a buffer air rod that is movably connected to the hanging wheel seat, so as to reduce the impact of the hanging wheel seat movement through the buffer cylinder.

5. The folding door connection structure according to claim 1, characterized in that: The hinge has a mating part, and adjacent hinges are hinged together through the mating part, which has a clearance space.

6. The folding door connection structure according to claim 5, characterized in that: The end of the mating part away from the hinge extends at an angle into an elbow, the edge of which is arc-shaped.

7. A folding door connection structure according to claim 6, characterized in that: The thickness of the elbow is less than the thickness of the joint.

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