Automatic folding door opening and closing device
The sliding seat is driven by the motor-driven screw rod rotation, combined with modular design, which solves the wear, noise and user experience problems of electric folding doors, realizes automatic opening and closing, improves stability, and simplifies installation.
Patent Information
- Application Number
- CN202422628016.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing electric folding doors have problems such as wear and tear, loud noise, high maintenance cost, poor opening and closing speed and stability, and poor user experience.
The motor drives the screw to rotate, driving the sliding seat and the door body to move, realizing automatic opening and closing. Combined with the modular design and stable connection structure, it ensures the stability and positioning accuracy of the door body during the sliding process.
It realizes the automatic opening and closing of electric folding doors, improves the convenience and stability of operation, reduces noise and wear, extends the service life, and simplifies the installation process.
Smart Images

Figure CN223410682U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of folding doors, in particular to an automatic opening and closing device for folding doors. Background Art
[0002] While electric folding doors have achieved some level of adoption in current folding door technology, they still present numerous practical challenges. Traditional electric folding doors rely on complex mechanical structures and motor drive systems, often employing transmission methods such as chains, gears, or belts. These methods are prone to wear, noise, and high maintenance costs over extended periods of operation. Furthermore, due to the limitations of transmission components, the opening and closing speed and stability of electric folding doors are often difficult to achieve.
[0003] It's particularly noteworthy that many existing electric folding doors fail to fully consider user convenience in their design. For example, some require manual adjustment during opening or closing, or design flaws in the transmission mechanism can cause the door to become stuck or misaligned during operation. These issues not only increase user difficulty but can also cause unnecessary damage to the door itself. Utility Model Content
[0004] (1) Purpose of the utility model
[0005] In view of this, the purpose of the present invention is to provide an automatic opening and closing device for a folding door, which solves the problems raised in the above background.
[0006] (2) Technical solution
[0007] The automatic opening and closing device of a folding door comprises a first door body, a second door body, a mounting frame and a ground rail, the first door body and the second door body are connected by multiple sets of pages, the top of the mounting frame is provided with multiple sets of screw holes, and the inner wall of the mounting frame is fixedly installed with two sets of connecting plates, the outer surfaces of the two sets of connecting plates are provided with multiple sets of screw grooves, and the multiple sets of screw grooves are fixedly connected to the connecting plates by bolts, the connecting plates are fixedly connected to the abutting frame, and the inner wall of the abutting frame is fixedly installed with two sets of fixing seats, the outer surfaces of the two sets of fixing seats are provided with circular through grooves, and a screw rod is movably installed in the circular through groove, one end of the screw rod is connected to a motor, and a sliding seat is movably installed on the outer surface of the screw rod, the bottom end of the sliding seat is connected with a clamping plate, and one end of the clamping plate is connected to the connecting seat, the bottom end of the connecting seat is provided with a connecting groove, the top of the first door body is provided with a cavity, and a connecting mechanism is provided in the cavity.
[0008] Preferably, the connecting mechanism includes a movable block, and the movable block is movably installed in the cavity at the top of the first door body, the top of the movable block is connected to a connecting rod, and the connecting rod passes through the top of the first door body, a groove is provided on the outer surface of one side of the movable block, and a spring is installed in the groove, one end of the spring is connected to a telescopic pin, and a pushing block is fixedly installed at the bottom end of the movable block.
[0009] Preferably, a limiting plate is fixedly mounted on one side of the inner wall of the cavity at the top end of the first door body, and two groups of limiting holes are provided on the outer surface of the limiting plate.
[0010] Preferably, a sliding groove is provided in the cavity at the top of the first door body, and a sliding plate is movably installed on the inner wall of the sliding groove. The top of the sliding plate is made of magnet material, and a plurality of limit blocks are fixedly installed on the outer surface of the sliding plate.
[0011] Preferably, a protective plate is fixedly mounted on the bottom side of the inner wall of the installation frame, and a limiting groove is provided on the outer surface of the protective plate, and a locking plate is movably engaged with the limiting groove.
[0012] Preferably, the fixing seat is fixedly connected to the motor.
[0013] Preferably, a shaft is fixedly mounted on the bottom end of the first door body, and a rotating ring is movably mounted on the outer surface of the shaft.
[0014] It can be seen from the above technical solutions that this application has the following beneficial effects:
[0015] 1. This utility model realizes the automatic opening and closing function of the folding door by adopting a design in which a motor drives the rotation of the screw rod, which in turn drives the movement of the sliding seat and the door body. This design eliminates the need for users to manually push and pull the door body, and can open and close the door body with simple controls. This greatly improves the convenience of operation and increases the opening and closing speed and stability of the electric folding door. At the same time, it reduces noise and wear, and prolongs the service life.
[0016] 2. The utility model adopts overall modular design, which makes installation more convenient, greatly shortens installation time and improves installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the first explosion structure of the utility model;
[0019] Figure 3 This is a schematic diagram of the second explosion structure of the utility model;
[0020] Figure 4 For this utility model Figure 2A in the middle is an enlarged schematic diagram;
[0021] Figure 5 For this utility model Figure 3 The enlarged schematic diagram of point B in the middle;
[0022] Figure 6 For this utility model Figure 3 Enlarged schematic diagram at point C in the middle.
[0023] In the figure: 1. first door body; 2. second door body; 3. hinge; 4. mounting frame; 5. screw hole; 6. floor rail; 7. limit plate; 8. connecting plate; 9. abutment frame; 811. screw groove; 812. bolt; 813. connecting plate; 911. protective plate; 912. screw rod; 913. fixing seat; 914. motor; 915. sliding seat; 916. engaging plate; 917. connecting seat; 918. connecting groove; 711. sliding plate; 712. movable block; 713. limit hole; 714. telescopic pin; 715. connecting rod; 716. pushing block; 717. limit block; 718. sliding groove; 511. shaft; 512. rotating ring. DETAILED DESCRIPTION
[0024] The following description is merely illustrative in nature and is not intended to limit the present disclosure, its applications, or uses. It should be understood that throughout the drawings, identical or similar reference numerals indicate identical or similar parts and features. The drawings merely schematically illustrate the concepts and principles of the embodiments of the present disclosure and do not necessarily depict the specific dimensions and proportions of the various embodiments of the present disclosure. Certain portions of certain drawings may be exaggerated to illustrate relevant details or structures of the embodiments of the present disclosure.
[0025] See also Figure 1-6 , an embodiment provided by the utility model:
[0026] The automatic opening and closing device of a folding door includes a first door body 1, a second door body 2, a mounting frame 4 and a ground rail 6. The first door body 1 and the second door body 2 are connected by a plurality of sets of pages 3. The top of the mounting frame 4 is provided with a plurality of sets of screw holes 5, and the inner wall of the mounting frame 4 is fixedly installed with two sets of connecting plates 8. The outer surfaces of the two sets of connecting plates 8 are provided with a plurality of sets of screw grooves 811, and the plurality of sets of screw grooves 811 are fixedly connected to the connecting plate 813 by bolts 812. The connecting plate 813 is fixedly connected to the abutting frame 9, and the inner wall of the abutting frame 9 is fixedly installed. There are two groups of fixed seats 913, and the outer surfaces of the two groups of fixed seats 913 are provided with circular through grooves, and a screw rod 912 is movably installed in the circular through grooves, one end of the screw rod 912 is connected to a motor 914, and a sliding seat 915 is movably installed on the outer surface of the screw rod 912, the bottom end of the sliding seat 915 is connected to a locking plate 916, and one end of the locking plate 916 is connected to a connecting seat 917, and a connecting groove 918 is provided at the bottom end of the connecting seat 917, and a cavity is provided at the top of the first door body 1, and a connecting mechanism is provided in the cavity.
[0027] Furthermore, the connecting mechanism includes a movable block 712, and the movable block 712 is movably installed in the cavity at the top of the first door body 1. The top of the movable block 712 is connected to a connecting rod 715, and the connecting rod 715 passes through the top of the first door body 1. A groove is provided on the outer surface of one side of the movable block 712, and a spring is installed in the groove. One end of the spring is connected to a telescopic pin 714. A pushing block 716 is fixedly installed at the bottom end of the movable block 712. By pressing the telescopic pin 714, the movable block 712 is unlocked, so that the movable block 712 can move upward, so that the connecting rod 715 can be engaged with the connecting groove 918, and at the same time, the telescopic pin 714 is engaged with another set of limiting holes 713 to maintain a stable connection.
[0028] Furthermore, a limit plate 7 is fixedly installed on one side of the inner wall of the cavity at the top of the first door body 1, and two groups of limit holes 713 are provided on the outer surface of the limit plate 7. The two groups of limit holes 713 provide a clear moving trajectory and stop position for the movable block 712, which helps to ensure the stability and positioning accuracy of the movable block during the movement process, and prevent failure or damage caused by excessive movement or offset.
[0029] Furthermore, a sliding groove 718 is opened in the cavity at the top of the first door body 1, and a sliding plate 711 is movably installed on the inner wall of the sliding groove 718. The top of the sliding plate 711 is made of magnet material, and a plurality of sets of limit blocks 717 are fixedly installed on the outer surface of the sliding plate 711. The sliding plate 711 is used to block the top cavity of the first door body 1, thereby maintaining the overall beauty. The magnet material is used for the adsorption effect of the top, and the top of the sliding groove 718 is made of iron.
[0030] Furthermore, a protective plate 911 is fixedly mounted on the bottom side of the inner wall of the mounting frame 4. A retaining groove is defined on the outer surface of the protective plate 911, which movably engages a retaining plate 916. The protective plate 911 provides additional protection for the internal mechanical structure. This helps prevent objects or other external factors from entering and damaging the internal components, thereby extending the service life of the device. The retaining groove and the retaining plate 916 engage with each other to prevent the retaining plate from accidentally falling off or moving, ensuring the stability of the internal structure.
[0031] Furthermore, the fixing seat 913 is fixedly connected to the motor 914 to ensure the stability of the motor 914 during operation.
[0032] Furthermore, a shaft 511 is fixedly mounted on the bottom end of the first door body 1 , and a rotating ring 512 is movably mounted on the outer surface of the shaft 511 , and the rotating ring 512 makes the door body more stable during rotation.
[0033] Working Principle: First, the first door body 1 and the second door body 2 are connected via multiple assembly panels 3, while the second door body 2 is connected to the door frame via multiple assembly panels 3. Next, the mounting frame 4 is securely mounted to the top of the door frame using multiple sets of screw holes 5 and corresponding screws. Simultaneously, the ground rail 6 is laid and fixed to the ground with screws to provide track support for the sliding of the doors.
[0034] Inside the mounting frame 4, the connecting plate 8 is tightly connected to the connecting plate 813 by bolts 812, thereby firmly placing the abutting frame 9 inside the mounting frame 4. Subsequently, the shaft 511 and the rotating ring 512 are installed on the inner wall of the ground rail 6 to provide support and guidance for the sliding of the door body on the ground. In the cavity at the top of the first door body 1, the movable block 712 and its supporting connecting mechanism are installed. The movable block 712 is connected to the telescopic pin 714 by a spring to ensure that it can be stably engaged or disengaged from the limiting hole 713 when needed. By pushing the push block 716 and pressing the telescopic pin 714 at the same time, the movable block 712 moves upward until the connecting rod 715 engages with the sliding groove 718, and the telescopic pin 714 is engaged with the other set of limiting holes 713, achieving a stable connection.
[0035] Then, push the sliding plate 711 made of magnetic material to cover the cavity at the top of the first door body 1, and use the adsorption force of the magnet to maintain the stable position of the sliding plate. At the same time, the limit block 717 ensures that the sliding plate will not move at will. When the folding door needs to be opened or closed, the motor 914 is started to drive the screw rod 912 to rotate. The rotation of the screw rod 912 drives the sliding seat 915 to move left and right on the screw rod. The movement of the sliding seat 915 then drives the first door body 1 to move through the locking plate 916 and the connecting seat 917. Since the first door body 1 is connected to the second door body 2 and the door frame through the multi-combination leaf 3, the movement of the first door body will drive the opening and closing of the entire folding door system. In this process, the ground rail 6 and the rotating ring 512 provide smooth guidance and support for the sliding of the door body, ensuring that the door body will not deviate or get stuck during movement.
[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. An automatic opening and closing device for a folding door, comprising a first door body (1), a second door body (2), a mounting frame (4) and a ground rail (6), wherein the first door body (1) and the second door body (2) are connected by a plurality of combination leaves (3), and characterized in that: The top of the installation frame (4) is provided with a plurality of screw holes (5), and the inner wall of the installation frame (4) is fixedly provided with two groups of connecting plates (8), the outer surfaces of the two groups of connecting plates (8) are provided with a plurality of screw grooves (811), and the plurality of screw grooves (811) are fixedly connected to the connecting plates (813) through bolts (812), the connecting plates (813) are fixedly connected to the abutting frame (9), and the inner wall of the abutting frame (9) is fixedly provided with two groups of fixing seats (913), and the outer surfaces of the two groups of fixing seats (913) are provided with circular screws. A circular through groove is formed, and a screw rod (912) is movably installed in the circular through groove, one end of the screw rod (912) is connected to a motor (914), and a sliding seat (915) is movably installed on the outer surface of the screw rod (912), the bottom end of the sliding seat (915) is connected to a clamping plate (916), and one end of the clamping plate (916) is connected to a connecting seat (917), and a connecting groove (918) is provided at the bottom end of the connecting seat (917), and a cavity is provided at the top end of the first door body (1), and a connecting mechanism is provided in the cavity.
2. The automatic opening and closing device for a folding door according to claim 1, characterized in that: The connecting mechanism includes a movable block (712), and the movable block (712) is movably installed in the cavity at the top of the first door body (1), the top of the movable block (712) is connected to a connecting rod (715), and the connecting rod (715) passes through the top of the first door body (1), a groove is provided on the outer surface of one side of the movable block (712), and a spring is installed in the groove, one end of the spring is connected to a telescopic pin (714), and a pushing block (716) is fixedly installed at the bottom end of the movable block (712).
3. The automatic opening and closing device for a folding door according to claim 1, characterized in that: A limiting plate (7) is fixedly mounted on one side of the inner wall of the cavity at the top of the first door body (1), and two groups of limiting holes (713) are provided on the outer surface of the limiting plate (7).
4. The automatic opening and closing device for a folding door according to claim 1, characterized in that: A sliding groove (718) is provided in the cavity at the top of the first door body (1), and a sliding plate (711) is movably mounted on the inner wall of the sliding groove (718). The top of the sliding plate (711) is made of a magnetic material, and a plurality of limit blocks (717) are fixedly mounted on the outer surface of the sliding plate (711).
5. The automatic opening and closing device for a folding door according to claim 1, characterized in that: A protective plate (911) is fixedly mounted on the bottom side of the inner wall of the installation frame (4), and a limiting groove is provided on the outer surface of the protective plate (911), wherein a clamping plate (916) is movably engaged with the limiting groove.
6. The automatic opening and closing device for a folding door according to claim 1, characterized in that: The fixing seat (913) is fixedly connected to the motor (914).
7. The automatic opening and closing device for a folding door according to claim 1, characterized in that: A shaft (511) is fixedly mounted on the bottom end of the first door body (1), and a rotating ring (512) is movably mounted on the outer surface of the shaft (511).