Anti-collision folding door

Abstract

The utility model relates to the technical field of folding doors, and discloses an anti-collision folding door which comprises a door frame and a folding door leaf, an installation bottom plate is fixedly installed on the lower side of the door frame, a connecting sliding rail is fixedly installed on the surface of the door frame, and the folding door leaf comprises two door plates which are connected in a hinged mode. Wherein the upper side and the lower side of one door plate are rotationally connected with the connecting sliding rail and the mounting bottom plate correspondingly, a sliding seat is rotationally installed on the upper surface of the other door plate and is in sliding connection with the connecting sliding rail, two transmission wheels are rotationally installed on the surface of the door frame, and the surfaces of the two transmission wheels are sleeved with transmission belts. The folding door leaf is connected with a transmission belt through a sliding seat and a connecting block, a contact sensor is arranged on a connecting sliding rail, when the folding door leaf is opened or closed, the contact sensor is triggered, a servo motor is linked to start, the servo motor drives the transmission belt to operate, and the folding door leaf is pulled to complete opening and closing actions. The problem of collision caused by random sliding of the folding door leaf is solved, and the anti-collision effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of folding doors, and particularly relates to an anti-collision folding door. Background Technique

[0002] The folding door is composed of multiple folding panels that can be pushed to the side, occupying less space. The folding door mainly consists of a door frame, door leaves, transmission components, swing arm components, transmission rods, orientation devices, etc. The patent document with the publication number of CN208310588U in the prior art discloses an aluminum alloy folding door with an anti-collision function, including a door frame. Both ends of the inner side of the door frame are rotatably connected with rotating doors. A first anti-collision bar is installed on the front surface of the rotating door near the front side of the first glass, and a spring is embedded at one end of the rear surface of the rotating door near the first glass. One end of the hinge is rotatably connected with a sliding door, and a magnet is arranged at one end of the rear surface of the sliding door near the second glass. A positioning post is arranged at the top of the sliding door. A second protective sleeve is arranged outside the second anti-collision bar, and an iron block is connected to the rear side of the spring. The structure of the utility model is reasonable and safe to use. The spring is arranged to reduce the impact force between the rotating door and the sliding door. The magnet is arranged to prevent the sliding door from moving. The first anti-collision bar and the second anti-collision bar are arranged to prevent the aluminum alloy folding door from being damaged. The positioning post is arranged to prevent the sliding door from shifting.

[0003] During the actual use process, when opening or closing the door, collisions often occur between the door leaves and between the door leaves and the door frame, resulting in damage to the folding door. Based on this, the existing folding doors have the problem of easy impact during the opening and closing process and need to be further improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anti-collision folding door to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an anti-collision folding door, including a door frame and folding door leaves. An installation base plate is fixedly installed on the lower side of the door frame, and a connecting slide rail is fixedly installed on the surface of the door frame. The folding door leaves include two door panels, and the two door panels are hinged. The upper and lower sides of one door panel are respectively rotatably connected with the connecting slide rail and the installation base plate, and a sliding seat is rotatably installed on the upper surface of the other door panel. The sliding seat is slidably connected with the connecting slide rail;

[0006] Two driving wheels are rotatably mounted on the surface of the door frame. A transmission belt is sleeved on the surfaces of the two driving wheels. The upper surface of the sliding seat is fixedly connected to the transmission belt through a connecting block. A servo motor for driving the driving wheels to rotate is arranged inside the door frame. A plurality of contact sensors are fixedly mounted on the surface of the connecting slide rail. During the opening and closing process of the folding door leaf, the sliding seat is driven to slide, and the contact sensors can be triggered to link the servo motor to start. The servo motor drives the transmission belt to operate and pulls the folding door leaf to complete the opening and closing actions.

[0007] In some embodiments, the sliding seat has a C-shaped structure. A first guiding wheel and a second guiding wheel are respectively rotatably mounted on the inner walls of the sliding seat. A guiding groove is formed on the upper side of the connecting slide rail. The first guiding wheel rolls along the inner wall of the guiding groove, and the second guiding wheel rolls along the lower surface of the connecting slide rail, making the sliding of the sliding seat smoother.

[0008] In some embodiments, a limiter is embedded on the upper surface of the mounting base plate. A sliding hole is formed on the upper surface of the limiter, and a positioning pin is slidably mounted in the sliding hole. A first electric telescopic rod is fixedly mounted inside the limiter. The first electric telescopic rod drives the positioning pin to telescopically move up and down. A limiting hole is formed on the lower side of the door panel, and the positioning pin can be slidably inserted into the limiting hole, making the closed state of the folding door leaf more firmly restricted by the limiting pin.

[0009] In some embodiments, a first transverse rib and a second transverse rib are respectively fixedly mounted inside the two door panels. Through holes are formed on the opposite surfaces of the two door panels. A second electric telescopic rod is embedded inside the first transverse rib, and the telescopic end of the second electric telescopic rod can extend from the through hole to the outside of the door panel. An insertion cavity aligned with the through hole is formed at the end of the second transverse rib, and the telescopic end of the second electric telescopic rod can be slidably inserted into the insertion cavity, making the closing between the door panels more stable.

[0010] In some embodiments, a sealing plug is slidably mounted inside the insertion cavity. A return spring is fixedly mounted inside the insertion cavity. The return spring presses against the sealing plug, making the end of the sealing plug extend into the through hole of the door panel slidably to prevent dust from falling into the door panel.

[0011] In some embodiments, there are two folding door leaves, which are symmetrically arranged on both sides of the surface of the door frame. The connecting block on the upper side of one folding door leaf is fixedly connected to the upper running belt surface of the transmission belt, and the connecting block on the upper side of the other folding door leaf is fixedly connected to the lower running belt surface of the transmission belt. Two positioning pins are arranged inside the limiter. The first electric telescopic rod drives the two positioning pins to telescopically move up and down simultaneously, so that the two positioning pins can be respectively inserted into the limiting holes of the left and right folding door leaves.

[0012] Beneficial effects

[0013] The utility model provides an anti-collision folding door, which has the following beneficial effects:

[0014] 1. The anti-collision folding door, the folding door leaf is connected to the transmission belt through a sliding seat, a connecting block, and a contact sensor is arranged on the connecting slide rail. When the folding door leaf is opened or closed, the contact sensor is triggered, and the servo motor is started. The servo motor drives the transmission belt to operate and pulls the folding door leaf to complete the opening and closing action, thereby solving the problem of collision caused by random sliding of the folding door leaf and achieving an anti-collision effect.

[0015] 2. The anti-collision folding door utilizes a servo motor to drive a transmission belt to realize the function of electrically controlled opening and closing. By setting a limiter and a second electric telescopic rod in the door panel, when the door panel is closed, the locating pin of the limiter can be inserted into the limit hole at the bottom of the door panel, and the telescopic end of the second electric telescopic rod can be inserted into the insertion cavity on the side of the door panel, thereby improving the firmness of the folding door leaf when closed and preventing the folding door leaf from sliding open at will due to external force impact and causing collision damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the side section structure of the connecting slide rail;

[0018] Figure 3 It is a schematic diagram of the structure in the front view of the door panel in the closed state (partial section);

[0019] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0020] Figure 5 for Figure 3 Enlarged structural diagram at B in the middle.

[0021] In the figure: 1 door frame, 2 mounting base plate, 3 connecting slide rail, 4 door panel, 5 sliding seat, 6 transmission wheel, 7 transmission belt, 8 connecting block, 9 contact sensor, 10 first guide wheel, 11 second guide wheel, 12 limiter, 13 positioning pin, 14 first electric telescopic rod, 15 first transverse rib, 16 second transverse rib, 17 second electric telescopic rod, 18 insertion cavity, 19 sealing plug, 20 return spring, 21 limiting hole. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5 , the present invention provides a technical solution: an anti-collision folding door, including a door frame 1 and folding door leaves. An installation base plate 2 is fixedly installed on the lower side of the door frame 1, and a connecting slide rail 3 is fixedly installed on the surface of the door frame 1. The folding door leaves include two door panels 4, and the two door panels 4 are hinged. The upper and lower sides of one of the door panels 4 are respectively rotatably connected to the connecting slide rail 3 and the installation base plate 2, and a sliding seat 5 is rotatably installed on the upper surface of the other door panel 4. The sliding seat 5 is slidably connected to the connecting slide rail 3.

[0024] The sliding seat 5 has a C-shaped structure. A first guide wheel 10 and a second guide wheel 11 are respectively rotatably installed on the inner walls of the sliding seat 5. A guide groove is opened on the upper side of the connecting slide rail 3. The first guide wheel 10 rolls along the inner wall of the guide groove, and the second guide wheel 11 rolls along the lower surface of the connecting slide rail 3, as Figure 2 shown.

[0025] Two driving wheels 6 are rotatably installed on the surface of the door frame 1. A transmission belt 7 is sleeved on the surfaces of the two driving wheels 6. The upper surface of the sliding seat 5 is fixedly connected to the transmission belt 7 through a connecting block 8. A servo motor for driving the driving wheel 6 to rotate is arranged inside the door frame 1. A plurality of contact sensors 9 are fixedly installed on the surface of the connecting slide rail 3. During the opening and closing process of the folding door leaves, the sliding seat 5 is driven to slide and can trigger the contact sensors 9.

[0026] A stopper 12 is embedded on the upper surface of the installation base plate 2. A sliding hole is opened on the upper surface of the stopper 12, and a positioning pin 13 is slidably installed in the sliding hole. A first electric telescopic rod 14 is fixedly installed inside the stopper 12. The first electric telescopic rod 14 drives the positioning pin 13 to telescopically move up and down. A limiting hole 21 is opened on the lower side of the door panel 4, and the positioning pin 13 can be slidably inserted into the limiting hole 21.

[0027] A first transverse rib 15 and a second transverse rib 16 are respectively fixedly installed inside the two door panels 4. Through holes are opened on the opposite surfaces of the two door panels 4. A second electric telescopic rod 17 is embedded inside the first transverse rib 15. The telescopic end of the second electric telescopic rod 17 can extend from the through hole to the outside of the door panel 4. An insertion cavity 18 aligned with the through hole is opened at the end of the second transverse rib 16. The telescopic end of the second electric telescopic rod 17 can be slidably inserted into the insertion cavity 18.

[0028] A sealing plug 19 is slidably installed inside the insertion cavity 18 , and a return spring 20 is fixedly installed inside the insertion cavity 18 . The return spring 20 presses against the sealing plug 19 so that the end of the sealing plug 19 can slide and extend into the through hole of the door panel 4 .

[0029] In this embodiment, there are two folding door leaves, which are symmetrically arranged on both sides of the door frame 1. The connecting block 8 on the upper side of one folding door leaf is fixedly connected to the upper belt surface of the transmission belt 7, and the connecting block 8 on the upper side of the other folding door leaf is fixedly connected to the lower belt surface of the transmission belt 7. Figure 1 As shown, under normal conditions, the folding door leaf can be opened or closed manually, and the servo motor is used to drive the transmission belt 7 to move, and the opening and closing actions of the two folding door leaves can also be electrically controlled.

[0030] Two positioning pins 13 are arranged inside the limiter 12, and the first electric telescopic rod 14 drives the two positioning pins 13 to extend and retract upward and downward at the same time, so that the two positioning pins 13 can be respectively inserted into the limiting holes 21 of the folding door leaves on the left and right sides. By setting the limiter 12 and setting the second electric telescopic rod 17 in the door panel 4, when the door panel 4 is closed, the positioning pins 13 of the limiter 12 can be inserted into the limiting holes 21 of the door panel 4, and the telescopic end of the second electric telescopic rod 17 can be inserted into the insertion cavity 18 on the side of the door panel 4. Figure 3 , Figure 4 , Figure 5 , improve the firmness of the folding door leaf closing, and avoid the folding door leaf sliding open at will due to external force impact and collision damage.

[0031] How Collision Avoidance Works: Reference Figure 1 When the folding door leaf is opened manually, the sliding seat 5 triggers the contact sensors 9 at both ends, and the servo motor is started. The servo motor reverses to provide a traction force for the folding door leaf through the transmission belt 7 to prevent the folding door leaves from colliding with each other or hitting the door frame 1. Then, the servo motor rotates forward again to pull the folding door leaf to open completely. Figure 3 When the folding door leaf is closed manually, the sliding seat 5 triggers the contact sensor 9 in the middle position, and the servo motor is started. The servo motor reverses and provides a traction force for the folding door leaf through the transmission belt 7 to prevent the folding door leaves from colliding with each other or hitting the door frame 1. Then, the servo motor rotates forward again to pull the folding door leaf to slowly and completely close. It should be noted that the traction force provided by the servo motor is similar to braking. When the folding door leaf is opened or closed, the last distance is completed under the action of the traction force, not achieved by the inertial sliding of the folding door leaf itself, so it can have an anti-collision effect.

[0032] The anti-collision folding door has a folding door leaf connected to a transmission belt 7 via a sliding seat 5 and a connecting block 8. A contact sensor 9 is arranged on the connecting slide rail 3. When the folding door leaf is opened or closed, the contact sensor 9 is triggered, the servo motor is started, the servo motor drives the transmission belt 7 to operate, and pulls the folding door leaf to complete the opening and closing action, thereby solving the problem of collision caused by the random sliding of the folding door leaf and achieving an anti-collision effect.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-collision folding door, comprising a door frame (1) and folding door leaves, characterized in that: An installation base plate (2) is fixedly installed on the lower side of the door frame (1), and a connecting slide rail (3) is fixedly installed on the surface of the door frame (1). The folding door leaf comprises two door panels (4), and the two door panels (4) are hinged. The upper and lower sides of one of the door panels (4) are respectively rotatably connected to the connecting slide rail (3) and the installation base plate (2), and a sliding seat (5) is rotatably installed on the upper surface of the other door panel (4), and the sliding seat (5) is slidably connected to the connecting slide rail (3). Two transmission wheels (6) are rotatably installed on the surface of the door frame (1), a transmission belt (7) is sleeved on the surfaces of the two transmission wheels (6), and the upper surface of the sliding seat (5) is fixedly connected to the transmission belt (7) through a connecting block (8). A servo motor for driving the transmission wheel (6) to rotate is arranged inside the door frame (1), and a plurality of contact sensors (9) are fixedly installed on the surface of the connecting slide rail (3). During the opening and closing process of the folding door leaf, the sliding seat (5) is driven to slide and can trigger the contact sensors (9).

2. The anti-collision folding door according to claim 1, characterized in that: The sliding seat (5) has a C-shaped structure, a first guide wheel (10) and a second guide wheel (11) are respectively rotatably installed on the inner walls of the sliding seat (5), a guide groove is formed in the upper side of the connecting slide rail (3), the first guide wheel (10) rolls along the inner wall of the guide groove, and the second guide wheel (11) rolls along the lower surface of the connecting slide rail (3).

3. The anti-collision folding door according to claim 2, characterized in that: A stopper (12) is embedded on the upper surface of the installation base plate (2), a sliding hole is formed in the upper surface of the stopper (12), and a positioning pin (13) is slidably installed in the sliding hole. A first electric telescopic rod (14) is fixedly installed inside the stopper (12), and the first electric telescopic rod (14) drives the positioning pin (13) to telescopically move up and down. A limiting hole (21) is formed in the lower side of the door panel (4), and the positioning pin (13) can be slidably inserted into the limiting hole (21).

4. The anti-collision folding door according to claim 3, characterized in that: A first transverse rib (15) and a second transverse rib (16) are respectively fixedly installed inside the two door panels (4), through holes are formed in the opposite surfaces of the two door panels (4), a second electric telescopic rod (17) is embedded inside the first transverse rib (15), and the telescopic end of the second electric telescopic rod (17) can extend out of the door panel (4) from the through hole.

5. The anti-collision folding door according to claim 4, characterized in that: An insertion cavity (18) aligned with the through hole is formed at the end of the second transverse rib (16), and the telescopic end of the second electric telescopic rod (17) can be slidably inserted into the insertion cavity (18).

6. The anti-collision folding door according to claim 5, wherein: A plug (19) is slidably installed inside the insertion cavity (18), a return spring (20) is fixedly installed inside the insertion cavity (18), and the return spring (20) presses against the plug (19) so that the end of the plug (19) can slide and extend into the through hole of the door panel (4).

7. The anti-collision folding door according to claim 6, wherein: There are two folding door leaves, and the two folding door leaves are symmetrically arranged on both sides of the surface of the door frame (1). The connecting block (8) on the upper side of one folding door leaf is fixedly connected to the upper running belt surface of the transmission belt (7), and the connecting block (8) on the upper side of the other folding door leaf is fixedly connected to the lower running belt surface of the transmission belt (7).

8. The anti-collision folding door according to claim 7, wherein: There are two positioning pins (13) arranged inside the position limiter (12), and the first electric telescopic rod (14) drives the two positioning pins (13) to telescopically move up and down simultaneously, so that the two positioning pins (13) can be respectively inserted into the position-limiting holes (21) of the folding door leaves on the left and right sides.

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