Two-way anti-pinch folding door leaf of three-wing revolving door

Abstract

The utility model discloses a bidirectional anti-pinch folding door leaf of a three-wing revolving door, which relates to the field of revolving doors and comprises a door frame and three rotatable door leaves arranged on the inner side of the door frame, and each door leaf comprises a positioning door body and a movable door body capable of rotating towards the inner side and the outer side. Frames of the positioning door body and the movable door body are connected through bidirectional hinges, a control system is arranged on the door frame, and the control system can control the movable door body to rotate towards the inner side. According to the three-wing revolving door, the door leaf of the three-wing revolving door is of a structure combining the positioning door body and the movable door body, the movable door body can rotate in two directions, and when a pedestrian is clamped, under the connecting action of the two-way hinge, the pedestrian can pull the movable door body by himself / herself, the movable door body is driven to be opened towards the inner side or the outer side, and contact between the movable door body and the pedestrian is relieved. And the movable door body can make a response when the pedestrian is clamped, so that the pedestrian can carry out self rescue, and the safety of the whole three-wing revolving door in the working process is improved.

Description

Technical Field

[0001] The utility model relates to the field of revolving doors, in particular to a three-wing revolving door with bidirectional anti-pinch folding door leaves. Background Art

[0002] Three-wing revolving doors are widely used in office buildings, hotels, shopping malls, airports and other places. This type of door not only meets the requirements of the building entrance, but also meets the requirements of environmental isolation, effectively playing the role of windproof, dustproof and soundproof, thereby improving the environment near the entrance. Three-wing revolving doors are suitable for buildings with a large pedestrian flow. They have a wide space and strong traffic capacity. In addition, three-wing revolving doors also have safety systems and control systems, which can effectively prevent pinching, carding, collision, speed regulation, folding door wings, etc., making revolving doors an indispensable part of buildings.

[0003] The anti-pinch function of the three-wing revolving door is mainly realized by anti-collision and anti-pinch sensors, which can detect people or objects in time, so as to react quickly and stop the closing action of the door leaf to prevent harm to people or objects. Users can adjust the door speed or stop the door at any time as needed. However, if the sensor and other structures fail or the sensitivity decreases, it is easy to cause errors in sensor response and emergency stop work, which will lead to safety accidents. Utility Model Content

[0004] In order to solve the above problems, the present application provides a three-wing revolving door with bidirectional anti-pinch folding door leaves.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a three-wing revolving door with bidirectional anti-pinch folding door leaves, comprising a door frame and three rotatable door leaves arranged on the inner side of the door frame, wherein the door leaves each include a positioning door body and a movable door body that can be rotated inwardly and outwardly, and the frames of the positioning door body and the movable door body are connected by bidirectional hinges.

[0006] Furthermore, the two-way hinges include a hinge seat arranged on the frame of the positioning door body, a movable shaft tube rotatably connected to the hinge seat, a positioning shaft tube connected to the movable shaft tube via a connecting plate, and a movable hinge rotatably connected to the positioning shaft tube. The movable hinge is arranged on the frame of the movable door body. When the movable door body rotates inwardly and outwardly respectively, the movable hinge and the movable shaft tube rotate around the positioning shaft tube and the hinge seat respectively.

[0007] Furthermore, a control system is provided on the door frame, and the control system can control the movable door body to rotate inward. The control system includes a linkage wheel installed on the movable hinge. When the linkage wheel rotates, the movable hinge and the movable door body rotate inward synchronously.

[0008] The linkage wheel is connected to the driving wheel through a synchronous belt, and a motor capable of driving the driving wheel to rotate is installed at the central axis of the driving wheel, and the motor is installed on the door frame through an elastic telescopic arm.

[0009] Furthermore, the movable door body is provided with a photoelectric sensor capable of sensing its operating state, and the positioning door body is provided with a photoelectric receiving controller compatible with the photoelectric sensor.

[0010] Furthermore, a positioning magnetic block is provided at the top of the positioning door body through a frame, and a guide magnetic block is provided at the top of the movable door body. When the movable door body is pulled outward, the guide magnetic block is magnetically adsorbed to the positioning magnetic block.

[0011] Furthermore, the bottom end of the positioning door body is connected to a guide rail through a frame body that matches the movement trajectory of the movable door body being pulled outward, and the bottom end of the movable door body is provided with a guide roller. When the movable door body rotates outward, the guide roller slides into the inner side of the guide rail.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] The utility model adopts a structure that combines a fixed door body and a movable door body in the door leaf of the three-wing revolving door. The movable door body can rotate in both directions. When a pedestrian is trapped, under the connection of the two-way hinge, the pedestrian can pull the movable door body by himself, driving the movable door body to open toward the inside or outside, thereby releasing the contact between itself and the pedestrian. The movable door body can respond in time when the pedestrian is trapped, which is conducive to the pedestrian's self-rescue and improves the safety of the entire three-wing revolving door during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the utility model after the control system is installed.

[0017] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] Figure 4 It is a schematic diagram of the bidirectional hinge structure of the utility model.

[0019] In the figure: 1. door frame; 2. door leaf; 21. positioning door body; 211. hinge seat; 212. movable shaft tube; 22. movable door body; 221. positioning shaft tube; 222. movable hinge; 3. linkage wheel; 4. driving wheel; 5. synchronous belt; 6. motor; 7. photoelectric sensor; 8. photoelectric receiving controller; 9. positioning magnetic block; 10. guide magnetic block; 11. guide rail; 12. guide roller; 13. elastic telescopic arm. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1:

[0022] refer to Figure 1 , Figure 2 The three-wing revolving door shown has bidirectional anti-pinch folding door leaves, including a door frame 1 and three rotatable door leaves 2 arranged on the inner side of the door frame 1, and the door leaves 2 each include a positioning door body 21 and a movable door body 22 that can rotate inward and outward, and the frames of the positioning door body 21 and the movable door body 22 are connected by bidirectional hinges.

[0023] like Figure 2 As shown, the two-way hinges include a hinge seat 211 arranged on the frame of the positioning door body 21, a movable shaft tube 212 rotatably connected to the hinge seat 211, a positioning shaft tube 221 connected to the movable shaft tube 212 via a connecting plate, and a movable hinge 222 rotatably connected to the positioning shaft tube 221, and the movable hinge 222 is arranged on the frame of the movable door body 22.

[0024] When a pedestrian is trapped, under the connection of the two-way hinge, the pedestrian can pull the movable door body 22 by himself, driving the movable door body 22 to open inward or outward, thereby releasing the contact between the movable door body 22 and the pedestrian. The movable door body 22 can respond immediately when the pedestrian is trapped, which is conducive to the pedestrian's self-rescue and improves the safety of the entire three-wing revolving door during operation.

[0025] Embodiment 2:

[0026] like Figure 2As shown, a control system is provided on the door frame 1, and the control system can control the movable door body 22 to rotate inward. The control system includes a linkage wheel 3 installed on the movable hinge 222. When the linkage wheel 3 rotates, the movable hinge 222 and the movable door body 22 rotate inward synchronously. The linkage wheel 3 is connected to the driving wheel 4 through a synchronous belt 5, and a motor 6 that can drive the driving wheel 4 to rotate is installed at the central axis position. The motor 6 provides the driving wheel 4 with operating power. Under the connection of the synchronous belt 5, the movable door body 22 can be smoothly pulled inward to release the contact between the movable door body 22 and the pedestrian, which has the advantage of automation.

[0027] like Figure 1 , Figure 2 As shown, in order to quickly sense the abnormality of the movable door body 22 and drive the control system to respond and pull the movable door body 22 inward, a photoelectric sensor 7 that can sense its operating state is provided on the movable door body 22, and a photoelectric receiving controller 8 that is compatible with the photoelectric sensor 7 is provided on the positioning door body 21.

[0028] If the control system is in a malfunction state, pedestrians can also pull the movable door body 22 by themselves. At this time, the movable shaft tube 212 rotates around the hinge seat 211 to drive the movable door body 22 to open outward smoothly.

[0029] When the movable door body 22 is opened outward, the control system connected to the movable hinge 222 moves synchronously. Since the motor 6 is installed on the door frame 1 through the elastic telescopic arm 13, the control system can also move with the rotation of the movable hinge 222 and the movable shaft tube 212, adapting to the movement state of the movable door body 22 being pulled outward, and can also return to its original position with the reset of the movable door body 22.

[0030] Embodiment 3:

[0031] If the control system, photoelectric sensor 7 and photoelectric receiving controller 8 are in a malfunction state, and the pedestrian is in a pinched state, it is necessary to pull the movable door body 22 outward. Since the pedestrian is in pain at this time, in order to quickly open the movable door body 22, provide a living space for the pedestrian, relieve the pain, and facilitate the pedestrian to apply force to open the movable door body 22 again. The top of the positioning door body 21 is provided with a positioning magnetic block 9 through the frame, and the top of the movable door body 22 is provided with a guide magnetic block 10. When the movable door body 22 is pulled outward, the guide magnetic block 10 and the positioning magnetic block 9 are magnetically adsorbed, leaving a stable living space for the pedestrian to relieve the pain, ensuring the safety of the pedestrian, so that the pedestrian can continue to open the movable door body 22.

[0032] like Figure 3As shown, when a pedestrian is in a trapped state and needs to pull the movable door body 22 outward, since the movable door body 22 is relatively large, in order to improve the smoothness of the movable door body 22, the bottom end of the positioning door body 21 is connected to a guide rail 11 through a frame that matches the movement trajectory of the movable door body 22 being pulled outward, and the bottom end of the movable door body 22 is provided with a guide roller 12. When the movable door body 22 rotates outward, the guide roller 12 slides into the inner side of the guide rail 11 to reduce the sliding resistance.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-wing revolving door with bidirectional anti-pinch folding door leaves, comprising a door frame (1) and three rotatable door leaves (2) arranged inside the door frame (1), characterized in that: The door leaf (2) comprises a positioning door body (21) and a movable door body (22) which can rotate inwardly and outwardly, and the frames of the positioning door body (21) and the movable door body (22) are connected by a bidirectional hinge.

2. The three-wing revolving door with bidirectional anti-pinch folding door leaf according to claim 1 is characterized in that: The bidirectional hinges each comprise a hinge seat (211) arranged on the frame of a positioning door body (21), a movable shaft tube (212) rotatably connected to the hinge seat (211), a positioning shaft tube (221) connected to the movable shaft tube (212) via a connecting plate, and a movable hinge (222) rotatably connected to the positioning shaft tube (221); the movable hinge (222) is arranged on the frame of the movable door body (22); when the movable door body (22) rotates inwardly or outwardly, the movable hinge (222) and the movable shaft tube (212) rotate around the positioning shaft tube (221) and the hinge seat (211) respectively.

3. The three-wing revolving door with bidirectional anti-pinch folding door leaf according to claim 2 is characterized in that: The door frame (1) is provided with a control system, and the control system can control the movable door body (22) to rotate inwardly, and the control system includes a linkage wheel (3) installed on the movable hinge (222), and when the linkage wheel (3) rotates, the movable hinge (222) and the movable door body (22) rotate inwardly synchronously; The linkage wheel (3) is connected to the driving wheel (4) via a synchronous belt (5); a motor (6) for driving the driving wheel (4) to rotate is installed at the central axis of the driving wheel (4); the motor (6) is installed on the door frame (1) via an elastic telescopic arm (13).

4. The three-wing revolving door with bidirectional anti-pinch folding door leaf according to claim 1 is characterized in that: The movable door body (22) is provided with a photoelectric sensor (7) capable of sensing its operating state, and the positioning door body (21) is provided with a photoelectric receiving controller (8) adapted to the photoelectric sensor (7).

5. The three-wing revolving door with bidirectional anti-pinch folding door leaf according to claim 1 is characterized in that: The top of the positioning door body (21) is provided with a positioning magnetic block (9) through a frame, and the top of the movable door body (22) is provided with a guide magnetic block (10). When the movable door body (22) is pulled outward, the guide magnetic block (10) is magnetically attracted to the positioning magnetic block (9).

6. The three-wing revolving door with bidirectional anti-pinch folding door leaf according to claim 1 is characterized in that: The positioning The bottom end of the door body (21) is connected to a guide rail (11) through a frame body, which is consistent with the movement trajectory of the movable door body (22) being pulled outward. The bottom end of the movable door body (22) is provided with a guide roller (12). When the movable door body (22) rotates outward, The guide roller (12) slides into the inner side of the guide rail (11).

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