Rotary wing automatic opening and closing anti-pinch door leaf of two-wing revolving door

Abstract

The utility model discloses an anti-pinch door leaf capable of automatically opening and closing rotating wings of a two-wing revolving door, which relates to the technical field of revolving doors and comprises a door frame, an inlet and an outlet which are arranged on the side surface of the door frame, and a rotating door body which can rotate around the central axis position of the door frame is arranged on the inner side of the door frame. The ends, close to the entrance and the exit of the door frame, of the rotating door body are fixedly connected with arc door plates, the ends, close to the rotating door body, of the arc door plates are provided with linkage shafts capable of rotating in situ, and the surfaces of shaft bodies of the linkage shafts are connected with movable door bodies capable of being opened and closed through connecting hinges. When a person is clamped by the movable door body, the inductor can drive the electric drive structure to respond smoothly, and safety of pedestrians is guaranteed. In the long-time working process of the whole two-wing revolving door, if the electric drive structure breaks down, pedestrians can also apply force to push the movable door body open around the connecting hinge, so that the purpose of smoothly opening the movable door body is achieved, a living space is obtained, and the safety when the pedestrians are clamped is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of revolving doors, in particular to an automatic opening and closing anti-pinch door leaf of a two-wing revolving door. Background Art

[0002] Revolving doors are widely used in high-end buildings such as hotels, restaurants and office buildings due to their advantages of two-way passage, good sealing performance and beautiful appearance. At present, revolving doors are installed with rotating door leaves in the space surrounded by the top cover and the fixed arc wall. The arc wall around the door leaves is provided with an entrance and exit. People enter the space between two adjacent door leaves through the entrance, and then reach the exit as the door leaves rotate to achieve entry and exit. However, since the door leaves of automatic revolving doors are always in an automatic rotating state and are not controlled by the people entering and leaving, if the entry and exit timing is not mastered well, it is easy to be caught, threatening the safety of the people entering and leaving, especially on the entrance side of the revolving door. When people enter the space between the two door leaves from the entrance, the space between the door leaves and the arc wall on the entrance side gradually decreases as they rotate, which is easy to cause people to be caught, leading to the occurrence of safety accidents.

[0003] Most of the existing two-wing revolving doors that can respond to the situation of being trapped by people are identified by sensors installed on the surface of the door frame. When the sensor identifies that a pedestrian is trapped, it sends a signal to the PLC controller, which controls the drive device to stop rotating, causing the two-wing revolving door to stop running to avoid dragging pedestrians. However, in this process, if the sensor fails or the sensitivity decreases, or if there is an obstacle in the signal connection between the drive device controlling the two-wing revolving door and the sensor, it is easy to cause errors in sensor response and emergency stop work, thereby affecting the safety of pedestrians. Utility Model Content

[0004] In order to solve the above-mentioned problems, the present application provides a two-wing revolving door with automatic opening and closing anti-pinch door leaves.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a two-wing revolving door with automatic opening and closing anti-pinch door leaves of rotating wings, comprising a door frame and an entrance and exit arranged on the side surface of the door frame, wherein a rotating door body rotatable along the central axis position of the door frame is arranged on the inner side of the door frame, an arc door panel is fixedly connected to one end of the rotating door body close to the entrance and exit position of the door frame, an in-situ rotatable linkage shaft is installed to one end of the arc door panel close to the rotating door body, a movable door body that can be opened and closed is connected to the shaft surface of the linkage shaft through a connecting hinge, and an electric drive structure that can drive the linkage shaft, the connecting hinge and the movable door body to rotate synchronously is installed above the door frame.

[0006] Furthermore, the electric drive structure includes a gear rack 1 that can drive the linkage shaft to rotate, a gear rack 2 that is on the same horizontal plane as the gear rack 1, and a synchronous belt that drives the gear rack 1 and the gear rack 2. A motor that can drive the gear rack 2 to rotate is installed at the central axis position of the gear rack 2. The gear rack 1 is installed at the top of the linkage shaft, the synchronous belt is located directly above the rotating door body, and the gear rack 2 and the motor are installed on the part above the rotating door body close to the central axis position of the door frame.

[0007] Furthermore, a hanging rail is installed at the upper end of the door frame, and both ends of the hanging rail are respectively installed on the upper surfaces of the rotating door body and the movable door body. An auxiliary pulley compatible with the hanging rail is installed on the upper surface of the movable door body near the movable end. When the movable door body moves in a circle with the central axis of the linkage shaft as the axis, the auxiliary pulley moves in a circle inside the hanging rail.

[0008] Furthermore, a connecting column is installed at one end of the door frame opening close to the movable door body, and a sensor is installed on the connecting column. The sensor is communicatively connected to the terminal PLC controller, and the terminal PLC controller is communicatively connected to the motor.

[0009] Furthermore, a fastening wheel is installed on the outer side of the synchronous belt, and the fastening wheel is installed above the door frame through a bracket.

[0010] Furthermore, a buffer leather cover 1 and a buffer leather cover 2 are installed respectively at one end of the connecting column close to the movable door body and the movable end of the movable door body.

[0011] In summary, the technical effects and advantages of the utility model are:

[0012] The utility model connects the linkage shaft through the electric drive structure, and the shaft surface of the linkage shaft is connected to a movable door body that can be opened and closed through a connecting hinge. When the movable door body is in a state of pinching people, the sensor and the driving electric drive structure respond smoothly to ensure the safety of pedestrians. During the long-term operation of the entire two-wing revolving door, if the electric drive structure fails, pedestrians can also apply force to push the movable door body around the connecting hinge to achieve the purpose of smoothly opening the movable door body and obtain living space, which effectively ensures the safety of pedestrians when they are pinched, is easy to operate, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 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.

[0014] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the local structure of the cabinet of the utility model.

[0016] Figure 3 It is a schematic diagram of the operation of the linkage shaft, the connecting hinge and the movable door body of the utility model when they rotate synchronously.

[0017] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. door frame; 2. rotating door body; 3. arc door panel; 4. movable door body; 5. linkage shaft; 6. connecting hinge; 7. gear rack 1; 8. synchronous belt; 9. gear rack 2; 10. motor; 11. hanging rail; 12. auxiliary pulley; 13. fastening wheel; 14. connecting column; 15. sensor; 16. buffer leather cover 1; 17. buffer leather cover 2. DETAILED DESCRIPTION

[0019] 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.

[0020] Example: Reference Figure 1 , Figure 2 The shown two-wing revolving door has a revolving wing with automatic opening and closing anti-pinch door leaf, comprising a door frame 1 and an entrance and exit arranged on the side surface of the door frame 1, a revolving door body 2 which can rotate along the central axis of the door frame 1 is arranged on the inner side of the door frame 1, an arc door panel 3 is fixedly connected to one end of the revolving door body 2 close to the entrance and exit of the door frame 1, and a linkage shaft 5 which can rotate in situ is installed on one end of the arc door panel 3 close to the revolving door body 2, and a movable door body 4 which can be opened and closed is connected to the shaft surface of the linkage shaft 5 through a connecting hinge 6, and an electric drive structure which can drive the linkage shaft 5, the connecting hinge 6 and the movable door body 4 to rotate synchronously is installed above the door frame 1, the movable door body 4 can be smoothly opened after rotating, and can respond smoothly when a person is clamped, thereby ensuring the safety of pedestrians.

[0021] During the long-term operation of the two-wing revolving door, if the electric drive structure fails, pedestrians can also apply force to push the movable door body 4 around the connecting hinge 6 to achieve the purpose of smoothly opening the movable door body 4 and obtain survival space, effectively ensuring the safety of pedestrians when they are trapped.

[0022] like Figure 2 , Figure 4 As shown, the electric drive structure includes a gear rack 1 7 that can drive the linkage shaft 5 to rotate, a gear rack 2 9 that is on the same horizontal plane as the gear rack 1 7, and a synchronous belt 8 that drives the gear rack 1 7 and the gear rack 2 9. The central axis position of the gear rack 2 9 is installed with a motor 10 that can drive it to rotate. When the motor 10 is running, the gear rack 2 9 rotates. Under the connection of the synchronous belt 8, the gear rack 1 7 can drive the linkage shaft 5 to rotate, so as to achieve the purpose of driving the joint hinge 6 and the movable door body 4 to rotate synchronously. The gear rack 1 7 is installed at the top of the linkage shaft 5, the synchronous belt 8 is located directly above the rotating door body 2, and the gear rack 2 9 and the motor 10 are installed on the part above the rotating door body 2 near the central axis position of the door frame 1.

[0023] like Figure 2 , Figure 3 and Figure 4 As shown, a hanging rail 11 is installed at the upper end of the door frame 1, and the two ends of the hanging rail 11 are respectively installed on the upper surfaces of the rotating door body 2 and the movable door body 4. An auxiliary pulley 12 compatible with the hanging rail 11 is installed on the upper surface of the movable door body 4 near the movable end. When the movable door body 4 moves in a circle with the central axis of the linkage shaft 5 as the axis, the auxiliary pulley 12 is located on the inner side of the hanging rail 11 and moves in a circle, which can improve the smoothness of the movement of the movable door body 4 and effectively avoid the phenomenon that the pedestrians located below the movable door body 4 are not easy to push the movable door body 4 open due to the large volume and gravity of the movable door body 4.

[0024] When the electric drive structure fails, pedestrians need to apply force to push the movable door body 4 around the connecting hinge 6, and the auxiliary pulley 12 is also located in the hanging rail 11. It is worth mentioning that since the central axis of the movable door body 4 when rotating along the connecting hinge 6 is different from the central axis of the linkage shaft 5, the connecting hinge 6 and the movable door body 4 when rotating synchronously, the channel opened on the surface of the hanging rail 11 has space to accommodate the sliding of the movable door body 4 along different central axes, which does not affect the smooth sliding of the movable door body 4.

[0025] like Figure 2 As shown, a connecting column 14 is installed at one end of the door frame 1 near the opening of the movable door body 4, and a sensor 15 is installed on the connecting column 14. The sensor 15 is connected to the terminal PLC controller in communication, and the terminal PLC controller is connected to the motor 10 in communication. When the sensor 15 senses that a pedestrian is trapped, it can transmit a signal to the terminal PLC controller, and the terminal PLC controller can control the motor 10 in the electric drive structure to operate, so as to achieve the purpose of driving the linkage shaft 5, the connecting hinge 6 and the movable door body 4 to rotate synchronously, so as to facilitate the smooth opening of the movable door body 4. During the long-term operation of the entire two-wing revolving door, if the sensor 15 and the motor 10 fail at the same time, under the connection of the hinge, the pedestrian can also apply force to push the movable door body 4 around the connecting hinge 6 to obtain a living space.

[0026] like Figure 1 As shown, a fastening wheel 13 is installed on the outer side of the synchronous belt 8, and the fastening wheel 13 is installed on the upper side of the door frame 1 through a bracket. The fastening wheel 13 presses against the surface of the synchronous belt 8, ensuring the tight state of the synchronous belt 8, avoiding the loosening of the synchronous belt 8 caused by the shaking of the gear rack 17 due to the long-term opening and closing movement of the movable door body 4, and ensuring the accuracy of the synchronous belt 8 in the transmission process of the gear rack 17.

[0027] like Figure 1 As shown, one end of the connecting column 14 close to the movable door body 4 and the movable end of the movable door body 4 are respectively installed with a buffer leather cover 16 and a buffer leather cover 2 17. The setting of the buffer leather cover 16 and the buffer leather cover 2 17 can reduce the pressure when the pedestrian is clamped, reduce the impact damage to the pedestrian, and have a protective effect.

[0028] 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 two-wing revolving door with automatic opening and closing anti-pinch door leaf, comprising a door frame (1) and an inlet and an outlet arranged on the side surface of the door frame (1), wherein a rotating door body (2) is arranged on the inner side of the door frame (1) and can rotate along the central axis of the door frame (1), characterized in that: The end of the rotating door body (2) close to the entrance and exit positions of the door frame (1) is fixedly connected to an arc door panel (3), and the end of the arc door panel (3) close to the rotating door body (2) is installed with a linkage shaft (5) that can rotate in situ, and the shaft surface of the linkage shaft (5) is connected to a movable door body (4) that can be opened and closed through a connecting hinge (6), and an electric drive structure that can drive the linkage shaft (5), the connecting hinge (6) and the movable door body (4) to rotate synchronously is installed above the door frame (1).

2. The automatic opening and closing anti-pinch door leaf of the rotating wing of the two-wing revolving door according to claim 1 is characterized in that: The electric drive structure comprises a gear rack 1 (7) capable of driving the linkage shaft (5) to rotate, a gear rack 2 (9) located at the same horizontal plane as the gear rack 1 (7), and a synchronous belt (8) for connecting the gear rack 1 (7) and the gear rack 2 (9) in a transmission manner, a motor (10) capable of driving the gear rack 2 (9) to rotate is installed at the center axis position of the gear rack 2 (9), the gear rack 1 (7) is installed at the top end of the linkage shaft (5), the synchronous belt (8) is located directly above the rotating door body (2), and the gear rack 2 (9) and the motor (10) are installed at a portion above the rotating door body (2) close to the center axis position of the door frame (1).

3. The automatic opening and closing anti-pinch door leaf of the rotating wing of the two-wing revolving door according to claim 1 is characterized in that: A hanging rail (11) is installed at the upper end of the door frame (1), and the two ends of the hanging rail (11) are respectively installed on the upper surfaces of the rotating door body (2) and the movable door body (4). An auxiliary pulley (12) adapted to the hanging rail (11) is installed at a position close to the movable end of the upper surface of the movable door body (4). When the movable door body (4) moves in a circular motion with the central axis of the linkage shaft (5) as the axis, the auxiliary pulley (12) moves in a circular motion inside the hanging rail (11).

4. The automatic opening and closing anti-pinch door leaf of the rotating wing of the two-wing revolving door according to claim 2 is characterized in that: A connecting column (14) is installed at one end of the door frame (1) at the opening position close to the movable door body (4), and a sensor (15) is installed on the connecting column (14). The sensor (15) is communicatively connected to the terminal PLC controller, and the terminal PLC controller is communicatively connected to the motor (10).

5. The automatic opening and closing anti-pinch door leaf of the rotating wing of the two-wing rotating door according to claim 2 is characterized in that: A fastening wheel (13) is installed on the outer side of the synchronous belt (8), and the fastening wheel (13) is installed above the door frame (1) through a bracket.

6. The automatic opening and closing anti-pinch door leaf of the rotating wing of the two-wing rotating door according to claim 4 is characterized in that: A first buffer leather cover (16) and a second buffer leather cover (17) are respectively installed at one end of the connecting column (14) close to the movable door body (4) and the movable end of the movable door body (4).

Images