A flap door that is convenient and quick to install

Abstract

The present invention provides a flap door that is convenient and quick to install. It adopts a vertically installed reset device to achieve the function of automatically retracting the door stop after the power of the flap door is cut off. Moreover, the installation and maintenance of the flap door are convenient, and the installation space of the flap door occupying the turnstile is small. A door stop is fixedly installed in the upper region of the door stop rotating shaft, and a motor is arranged in the inner cavity of the bottom installation bracket. The coupling reset device specifically includes a frame body and a connecting shaft. The frame body is composed of a main support plate, an upper support plate and a support rod. The corresponding bottom end of the support rod is fixedly connected to the upper surface of the main support plate, and the upper end of the support rod is fixedly connected to the lower surface of the upper support plate. A bearing seat is provided on the upper support plate and a bearing is installed. The top of the connecting shaft passes through the bearing. After the top of the connecting shaft protrudes above the bearing seat, a concave horizontal groove is formed on the upper surface of the connecting shaft. The bottom end of the door stop rotating shaft protrudes and is inserted into the concave horizontal groove. The bottom end of the connecting shaft is connected to the output end of the motor through a keyway structure, and a reset wheel is fixedly sleeved on the outer peripheral surface of the lower part of the connecting shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of flap door structures, and specifically to a flap door that is convenient and quick to install. Background Art

[0002] Currently, in automatic ticket checking systems (gate machines) for rail transit, intelligent building access control, etc., more and more use flap doors (the door stop rotates horizontally) as the actuator for opening / closing the passage. Generally, the passage is in a normally closed state. When a passenger needs to pass through and complete (pre-)payment or meet the passage requirements, the door stop of the flap door opens, and the passenger passes through the gate, as Figure 1 shown.

[0003] For the flap doors used in rail transit, technically, it is usually required that the flap door automatically opens in an emergency such as a power outage. The power outage opening function of the existing flap door is realized by a tension spring. One end of the tension spring is fixed on the tension spring shaft, and the other end is connected to the tension spring belt. The other end of the tension spring belt is connected to the coupling reset wheel. During assembly, the tension spring has a certain tension, so that the coupling reset wheel always has a unidirectional rotational force. The coupling reset wheel is connected to the door stop rotating shaft through a connection key. Therefore, the door stop installed on the door stop rotating shaft also always has a unidirectional rotational force. When the motor works, the motor shaft passes through the coupling reset wheel and overcomes the tension spring force, so that the door stop rotating shaft and the door stop rotate to the required position to achieve the "open" and "close" functions of the door stop. However, no matter where the door stop is located, when the gate machine loses power, under the action of the rotating tension spring, the door stop rotates back to the original position inside the gate machine to ensure that the gate machine passage is opened. However, since the door stop of the flap door can rotate from 0 to 180 degrees, the tension spring needs to overcome the motor resistance to reset the door stop. Therefore, the tension spring needs to have a relatively large telescopic stroke and a relatively large pulling force, which makes the horizontally placed tension spring relatively long, and the entire flap door requires a relatively large installation space.

[0004] Moreover, when installing the existing flap door, the door stop rotating shaft needs to be assembled with the bearing and the bearing seat as a whole first, then pass through the hole of the lower housing of the gate machine and be keyed with the coupling reset wheel, and then the bearing seat is fixed to the upper support plate of the flap door with screws. Due to the limited space below the lower housing of the gate machine, the actual operation is rather difficult. Summary of the Invention

[0005] In view of the above problems, the present invention provides a flap door that is convenient and quick to install. It adopts a vertically installed reset device to realize the function of automatically retracting the door stop of the flap door when the power is off, and the installation and maintenance of the flap door are convenient, and the installation space of the flap door occupied by the gate machine is small.

[0006] A flapping door that is convenient and quick to install, characterized in that it includes a door stop rotating shaft, a door stop, a coupling and reset device, a bottom mounting bracket, and a motor. The door stop is fixedly installed in the upper region of the door stop rotating shaft. A motor is arranged in the inner cavity of the bottom mounting bracket. The coupling and reset device specifically includes a frame body and a connecting shaft. The frame body is composed of a main support plate, an upper support plate, and a support rod. The corresponding bottom end of the support rod is fixedly connected to the upper surface of the main support plate. The upper end of the support rod is fixedly connected to the lower surface of the upper support plate. A bearing seat is provided on the upper support plate and a bearing is installed. The top of the connecting shaft passes through the bearing. After the top of the connecting shaft protrudes above the bearing seat, a concave horizontal groove is formed on the upper surface of the connecting shaft. The bottom end of the door stop rotating shaft protrudes and is inserted into the concave horizontal groove. The bottom end of the connecting shaft is connected to the output end of the motor through a keyway structure. A reset wheel is fixedly sleeved on the outer peripheral surface of the lower part of the connecting shaft. A reset torsion spring is sleeved on the outer peripheral region of the connecting shaft corresponding to the upper part of the reset wheel and the lower part of the upper support plate. The upper torsion arm of the reset torsion spring is fixedly connected to the corresponding position on the lower surface of the upper support plate. The lower torsion arm of the reset torsion spring is fixedly arranged at the corresponding position of the reset wheel. When the reset torsion spring of the coupling and reset device is assembled, a certain minimum torsion force is preset for the reset wheel. This torsion force drives the output shaft of the motor without power to rotate to the open state of the door stop. When the motor is in the energized state, the reset torsion spring cannot drive the connecting shaft to rotate.

[0007] Its further features are as follows:

[0008] The reset wheel is specifically a butterfly-shaped reset wheel. The butterfly-shaped reset wheel includes a large-diameter arc protruding outward. The main support plate is provided with a limiting rod protruding upward in the area corresponding to the large-diameter arc. The limiting rod ensures the accurate and reliable position when the door stop rotating shaft closes towards both sides.

[0009] An upper convex centering sleeve is arranged on the outer circle of the upper surface of the connecting shaft where the concave horizontal groove is formed. The outer ring surface of the bottom of the door stop rotating shaft extends into the centering sleeve for arrangement to prevent the door stop rotating shaft from displacing along the groove direction and keep the connecting shaft and the door stop rotating shaft concentric.

[0010] A flat hole is formed at the central position of the reset wheel. The connecting shaft is inserted and connected in the flat hole at the corresponding axial position, which ensures the synchronous rotation of the connecting shaft and the reset wheel.

[0011] A first installation groove is formed by concave inward on the upper surface of the reset wheel. The lower torsion arm of the reset torsion spring is fixedly inserted into the first installation groove. A second installation groove is formed by concave inward on the lower surface of the upper support plate. The upper torsion arm of the reset torsion spring is fixedly inserted into the second installation groove, which ensures the quick and convenient installation of the reset torsion spring.

[0012] The main support plate is supported on the corresponding vertical connecting rod of the bottom mounting bracket, the bottom plate of the bottom mounting bracket is fixedly connected to the corresponding bottom position of the turnstile, and an upper bearing seat is further provided at the top of the turnstile corresponding to the top position of the door stop rotating shaft. The top of the door stop rotating shaft is fixedly inserted into the corresponding bearing of the bearing shaft seat to ensure the stable and reliable position of the door stop rotating shaft.

[0013] After adopting the structure of the present invention, after the coupling reset device is installed, the output shaft with a key of the motor is inserted into the corresponding key slot hole at the lower end of the connecting shaft of the coupling reset device, and then the motor and the connecting shaft are fixed together by screws. After that, the door stop rotating shaft of the flapping door is inserted downward from the hole of the turnstile housing until the lower end of the door stop rotating shaft protrudes downward and is inserted into the lower concave transverse groove of the connecting shaft. It adopts a vertically installed reset device to realize the function of automatically retracting the door stop after the flapping door is powered off, and the installation and maintenance of the flapping door are convenient, and the installation space of the turnstile occupied by the flapping door is small. Brief Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the turnstile passage of the existing flapping door;

[0015] Figure 2 It is a schematic diagram of the front view structure of the present invention;

[0016] Figure 3 It is a partially enlarged schematic diagram of the coupling reset device of the present invention;

[0017] Figure 4 It is a schematic diagram of the front view structure of the present invention when the door stop is in the 0-degree state;

[0018] Figure 5 For Figure 4 the A-A sectional structure schematic diagram;

[0019] Figure 6 It is a schematic diagram of the front view structure of the present invention when the door stop is in the 90-degree state;

[0020] Figure 7 It is a schematic diagram of the front view structure of the present invention when the door stop is in the 180-degree state;

[0021] The names corresponding to the serial numbers in the figure are as follows:

[0022] Door stop rotating shaft 1, door stop 2, coupling reset device 3, bottom mounting bracket 4, motor 5, frame body 6, connecting shaft 7, lower concave transverse groove 71, main support plate 8, upper support plate 9, second mounting groove 91, support rod 10, bearing seat 11, bearing 12, reset wheel 13, large-diameter arc 131, first mounting groove 132, flat hole 133, reset torsion spring 14, limit rod 15, centering sleeve 16, bearing seat 17. Detailed Description of the Invention

[0023] A flapping door that is convenient and quick to install, see Figures 1-7 : It includes a door stop rotating shaft 1, a door stop 2, a coupling reset device 3, a bottom mounting bracket 4, and a motor 5. A door stop 2 is fixedly installed in the upper region of the door stop rotating shaft 1. A motor 5 is arranged in the inner cavity of the bottom mounting bracket 4. The coupling reset device 3 specifically includes a frame body 6, a connecting shaft 7, a main support plate 8, an upper support plate 9, and a support rod 10 to form the frame body 6. The corresponding bottom end of the support rod 10 is fixedly connected to the upper surface of the main support 8 plate. The upper end of the support rod 10 is fixedly connected to the lower surface of the upper support plate 9. A bearing seat 11 is provided on the upper support plate 9 and a bearing 12 is installed. The top of the connecting shaft 7 passes through the bearing 12. After the top of the connecting shaft 7 protrudes above the bearing seat 11, a concave horizontal groove 71 is formed on the upper surface of the connecting shaft 7. The bottom end of the door stop rotating shaft 1 protrudes downward and is inserted into the concave horizontal groove 71. The bottom end of the connecting shaft 7 is connected to the output end of the motor 5 through a keyway structure. A reset wheel 13 is fixedly sleeved on the outer peripheral surface of the lower part of the connecting shaft 7. A reset torsion spring 14 is sleeved on the outer peripheral region of the connecting shaft 7 corresponding to the upper side of the reset wheel 13 and the lower side of the upper support plate 9. The upper torsion arm of the reset torsion spring 14 is fixedly connected to the corresponding position on the lower surface of the upper support plate 9. The lower torsion arm of the reset torsion spring 14 is fixedly arranged at the corresponding position of the reset wheel 13. When the reset torsion spring 14 of the coupling reset device 3 is assembled, a certain minimum torque is preset for the reset wheel 13. This torque drives the output shaft of the non-powered motor to rotate to the door stop open state. When the motor 5 is in the powered state, the reset torsion spring 14 cannot drive the connecting shaft to rotate.

[0024] The reset wheel 13 is specifically a butterfly-shaped reset wheel. The butterfly-shaped reset wheel includes a large-diameter arc 131 that protrudes outward. The main support plate 8 is provided with a limiting rod 15 that protrudes upward in the area corresponding to the large-diameter arc 131. The limiting rod 15 ensures the accurate and reliable position of the door stop rotating shaft 1 when closing towards both sides, and limits the movement of the door stop rotating shaft within the range of 0 to 180°;

[0025] An upper convex centering sleeve 16 is arranged on the outer circle of the concave horizontal groove 71 formed on the upper surface of the connecting shaft 7. The outer ring surface of the bottom of the door stop rotating shaft 1 extends into the centering sleeve 16 for arrangement to prevent the door stop rotating shaft 1 from displacing along the groove direction and maintain the concentricity of the connecting shaft 7 and the door stop rotating shaft 1;

[0026] A flat hole 133 is formed at the central position of the reset wheel 13. The connecting shaft 7 is inserted and connected in the flat hole 133 at the corresponding axial position, which ensures the synchronous rotation of the connecting shaft 7 and the reset wheel 13;

[0027] A first installation groove 132 is formed by concave inward on the upper surface of the reset wheel 13. The lower torsion arm of the reset torsion spring 14 is fixedly inserted into the first installation groove 132. A second installation groove 91 is formed by concave inward on the lower surface of the upper support plate 9. The upper torsion arm of the reset torsion spring 14 is fixedly inserted into the second installation groove 91, which ensures the quick and convenient installation of the reset torsion spring;

[0028] The main support plate 5 is supported on the corresponding vertical connecting rods of the bottom mounting bracket 1. The bottom plate of the bottom mounting bracket 1 is fixedly connected to the corresponding bottom position of the turnstile. At the top position corresponding to the top of the door stop rotating shaft 1 of the turnstile, an upper bearing seat 17 is also provided. The top of the door stop rotating shaft 1 is fixedly inserted into the corresponding bearing of the bearing shaft seat 17 to ensure the stable and reliable position of the door stop rotating shaft.

[0029] The working principle is as follows: After the coupling reset device is installed, insert the output shaft with a key of the motor into the corresponding hole at the lower end of the connecting shaft of the coupling reset device, and then fix the motor and the reset coupling device together with screws. Then, insert the door stop rotating shaft of the flapping door downward from the hole of the turnstile housing until the lower end of the door stop rotating shaft is inserted into the centering sleeve and the lower convex part of the lower end is inserted into the lower concave transverse groove of the connecting shaft. It adopts a vertically installed reset device to realize the function of automatically retracting the door stop after the flapping door is powered off. Moreover, the installation and maintenance of the flapping door are convenient, and the installation space of the turnstile occupied by the flapping door is small.

[0030] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed invention.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flapping door that is convenient and quick to install, characterized in that: It includes a door stop rotating shaft, a door stop, a coupling reset device, a bottom mounting bracket, and a motor. The door stop is fixedly installed in the upper region of the door stop rotating shaft. A motor is arranged in the inner cavity of the bottom mounting bracket. The coupling reset device specifically includes a frame body and a connecting shaft. The frame body is composed of a main support plate, an upper support plate, and a support rod. The corresponding bottom end of the support rod is fixedly connected to the upper surface of the main support plate. The upper end of the support rod is fixedly connected to the lower surface of the upper support plate. A bearing seat is provided on the upper support plate and a bearing is installed. The top of the connecting shaft passes through the bearing. After the top of the connecting shaft protrudes above the bearing seat, a concave horizontal groove is formed on the upper surface of the connecting shaft. The bottom end of the door stop rotating shaft protrudes downward and is inserted into the concave horizontal groove. The bottom end of the connecting shaft is connected to the output end of the motor through a keyway structure. A reset wheel is fixedly sleeved on the outer peripheral surface of the lower part of the connecting shaft. A reset torsion spring is sleeved on the outer peripheral region of the connecting shaft corresponding to the upper part of the reset wheel and the lower part of the upper support plate. The upper torsion arm of the reset torsion spring is fixedly connected to the corresponding position on the lower surface of the upper support plate. The lower torsion arm of the reset torsion spring is fixedly arranged at the corresponding position of the reset wheel. When the reset torsion spring of the coupling reset device is assembled, a certain minimum torsion force is preset for the reset wheel. This torsion force drives the output shaft of the non-powered motor to rotate to the door stop open state. When the motor is in the powered state, the reset torsion spring cannot drive the connecting shaft to rotate; The reset wheel is specifically a butterfly-shaped reset wheel. The butterfly-shaped reset wheel includes a large-diameter arc protruding outward. The main support plate is provided with a limiting rod protruding upward in the area corresponding to the large-diameter arc; A centering sleeve protruding upward is arranged on the outer circle of the concave horizontal groove formed on the upper surface of the connecting shaft. The outer ring surface of the bottom of the door stop rotating shaft extends into the centering sleeve for arrangement; A flat hole is formed at the central position of the reset wheel. The connecting shaft is inserted into the flat hole at the corresponding axial position for connection arrangement; A first installation groove is formed by concave inward on the upper surface of the reset wheel. The lower torsion arm of the reset torsion spring is fixedly inserted into the first installation groove. A second installation groove is formed by concave inward on the lower surface of the upper support plate. The upper torsion arm of the reset torsion spring is fixedly inserted into the second installation groove; The main support plate is supported on the corresponding vertical connecting rod of the bottom mounting bracket. The bottom plate of the bottom mounting bracket is fixedly connected to the corresponding bottom position of the turnstile. An upper bearing seat is further arranged at the top of the turnstile corresponding to the top position of the door stop rotating shaft. The top of the door stop rotating shaft is fixedly inserted into the corresponding bearing of the bearing seat.

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