Automatic revolving door device

Abstract

The present invention discloses an automatic revolving door device, wherein the automatic revolving door device includes a rotating base, a connecting and fixing base, a rotating outer cylinder and a gate, wherein a motor and a reducer are arranged in the rotating base, wherein the connecting and fixing base is sleeved on the rotating shaft of the reducer through a connecting and fixing sleeve, wherein keyway locking and positioning are adopted between the rotating shaft of the reducer and the connecting and fixing sleeve and the connecting and fixing base, wherein the surface of the connecting and fixing sleeve in contact with the connecting and fixing base along the axial direction is an inclined surface, wherein a groove matching with the connecting and fixing base is arranged at the bottom of the rotating outer cylinder, wherein the rotating outer cylinder is sleeved with the rotating base through the connecting and fixing base. In the present invention, force decomposition is utilized to partially decompose the impact force generated when the gate rotates into positive pressure in the vertical direction, and combined with keyway locking technology, the positioning deviation caused by connection failure can be effectively eliminated and effective connection can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of passage gates, and in particular to an automatic revolving door device. Background Art

[0002] Swing gate gates are generally called flapping gates in the rail transit industry. As a channel blocking device, they are used to manage passenger flow and regulate pedestrian access. They are mainly used in subway gate systems and toll gate systems. Depending on the number of movements and barriers contained in the gate, the gate can be divided into a single movement (containing 1 movement and 1 barrier) and a double movement (containing 2 movements and 2 barriers, which are symmetrical on the left and right).

[0003] The braking method of the revolving door in the traditional swing door channel gate is to use an electromagnetic brake, which is fastened through a coupling or the lower part of a gear. During normal operation, when a braking command is received, the electromagnetic brake attracts the brake wheel to stop rotating to achieve the braking purpose. During the braking process, in order to reduce the impact force, the conventional practice is to increase the braking force of the electromagnetic brake or reduce the operating speed of the revolving door to reduce the impact force. However, increasing the braking force will cause the revolving door to shake greatly during braking, and cause connection failure, which will affect the use effect and service life of the revolving door. At the same time, reducing the operating speed of the revolving door will reduce the passage volume of the revolving door and reduce the performance of the channel gate.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide an automatic revolving door device, aiming to solve the technical problems of connection failure and poor positioning caused by excessive impact force during operation of the existing channel gate revolving door.

[0006] The technical solution of the present invention is as follows:

[0007] An automatic revolving door device, which includes a revolving base, a connecting and fixing base, a revolving outer cylinder and a gate, wherein a motor and a reducer are arranged inside the revolving base, a tapered needle roller bearing is fixedly arranged on the upper end surface of the revolving base, a rotating shaft of the reducer protrudes from the upper end surface of the revolving base, the connecting and fixing base is sleeved on the rotating shaft of the reducer through a connecting and fixing sleeve, a keyway is used to lock and position the rotating shaft of the reducer, the connecting and fixing sleeve and the connecting and fixing base, the surface of the connecting and fixing sleeve in axial contact with the connecting and fixing base is an inclined surface, the lower edge of the connecting and fixing base is in contact with the lower end of the inner ring of the tapered needle roller bearing, a groove matching with the connecting and fixing base is arranged at the bottom of the revolving outer cylinder, the revolving outer cylinder is sleeved on the revolving base through the connecting and fixing base, a door clamp assembly is also arranged inside the revolving outer cylinder, and the door clamp assembly is used to fix the gate.

[0008] The automatic revolving door device, wherein the fixed connecting sleeve includes a circular base plate, a first circular through hole is provided at the center of the circular base plate, a first key slot is provided inside the first circular through hole, a connecting panel perpendicular to the circular base plate is provided along the edge of the first circular through hole, and an opening is provided at the connection panel corresponding to the first key slot.

[0009] The automatic revolving door device, wherein the outer facade of the connecting panel is an inclined surface, and a rectangular opening is also provided on the connecting panel.

[0010] The automatic revolving door device, wherein the connecting and fixing seat includes a circular connecting and fixing plate, an assembly connecting column located at the center position of the lower end surface of the circular connecting and fixing plate, and a fixed connecting plate located at the center position of the upper end surface of the circular connecting and fixing plate, wherein a second circular through hole is provided in the middle of the circular connecting and fixing plate, and the edge of the circular connecting and fixing plate is a bevel.

[0011] The automatic revolving door device, wherein the assembly connecting column is a hollow cylindrical structure, the inner side of the assembly connecting column is an inclined surface forming a certain angle with the axial direction, and the inner diameter of the upper end of the assembly connecting column is the same as the diameter of the second circular through hole.

[0012] The automatic revolving door device, wherein a second keyway is provided on the inner side of the assembly connecting column, the upper end of the second keyway extends to the upper edge of the second circular through hole, and the lower end of the second keyway extends to the inner bottom of the assembly connecting column.

[0013] In the automatic revolving door device, a connecting key is provided on the rotating shaft of the reducer, and the connecting key, the first key slot and the second key slot form a key slot locking positioning.

[0014] The automatic revolving door device, wherein a first opening portion is provided at the bottom of the rotating outer cylinder for the rectangular fixed connecting plate on the connecting fixing seat to pass through, and a second opening portion is provided at one side of the rotating outer cylinder, and the second opening portion is used to set the gate.

[0015] The automatic revolving door device, wherein a rotating shaft seat is arranged on the inner side of the top of the rotating outer cylinder, one end of the rotating shaft seat is connected to a bearing located outside the rotating outer cylinder, and the other end of the rotating shaft seat is connected to the top of a door clamp assembly arranged in the rotating outer cylinder, and the door clamp assembly is used to fix the gate.

[0016] The automatic revolving door device, wherein the motor is a brushless programmable motor.

[0017] Beneficial effects: The present invention utilizes force decomposition to partially decompose the impact force generated when the gate rotates into positive pressure in the vertical direction. Combined with the keyway locking technology, it can effectively eliminate the positioning deviation of connection failure and achieve effective connection. At the same time, the prepared automatic revolving door device has a simple structure, easy installation, good reliability, and no loosening occurs during the swinging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a cross-sectional schematic diagram of a preferred embodiment of an automatic revolving door device of the present invention.

[0019] Figure 2 The figure is a structural schematic diagram of a preferred embodiment of a connecting and fixing seat in an automatic revolving door device of the present invention.

[0020] Figure 3 The figure is a structural schematic diagram of a preferred embodiment of a connecting and fixing sleeve in an automatic revolving door device of the present invention.

[0021] Figure 4 The figure is a schematic structural diagram of a preferred embodiment of a rotating outer cylinder in an automatic rotating door device of the present invention.

[0022] Figure 5 The figure is a schematic structural diagram of a preferred embodiment of an automatic revolving door device of the present invention. DETAILED DESCRIPTION

[0023] The present invention provides an automatic revolving door device. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] See also Figure 1 , Figure 1The present invention is a structural schematic diagram of an automatic revolving door device. As shown in the figure, the automatic revolving door device includes a rotating base 1, a connecting and fixing base 2, a rotating outer cylinder 3 and a gate 4, wherein the rotating base 1 is provided with a motor 10 and a reducer 11, the upper end surface of the rotating base 1 is fixedly provided with a tapered needle roller bearing 12, the rotating shaft of the reducer 11 protrudes from the upper end surface of the rotating base 1, the connecting and fixing base 2 is sleeved on the rotating shaft of the reducer 11 through a connecting and fixing sleeve 5, and the rotating shaft of the reducer 11 is connected to the rotating shaft of the reducer 11. A keyway is used to lock and position the connecting and fixing sleeve 5 and the fixed connecting seat 2. The surface of the connecting and fixing sleeve 5 in axial contact with the connecting and fixing seat 2 is an inclined surface. The lower edge of the connecting and fixing seat 2 is in contact with the lower end of the inner ring of the tapered needle roller bearing 12. The bottom of the rotating outer cylinder 3 is provided with a groove that matches the connecting and fixing seat 2. The rotating outer cylinder 3 is connected to the rotating base 1 through the connecting and fixing seat 2. A door clamp assembly 6 is also provided in the rotating outer cylinder 3, and the door clamp assembly 6 is used to fix the gate 4.

[0025] In this embodiment, a motor 10 and a reducer 11 are arranged in a rotating base 1. A groove matching the structure of the reducer 11 is arranged on the inner side of the top of the rotating base 1, so that the reducer 11 can be stably clamped on the rotating base 1. At the same time, the motor 10 and the reducer 11 are fixed by screws. The connecting and fixing base 2 is sleeved on the rotating shaft of the reducer 11 through the connecting and fixing sleeve 5. A rotating outer cylinder 3 is also covered on the connecting and fixing base 2. When the motor 10 drives the reducer 11 to rotate, the reducer 11 will drive the connecting and fixing base 2 to rotate, thereby causing the rotating outer cylinder 3 covered above the connecting and fixing base 2 to rotate, and then driving the gate 4 on the door clamp assembly 6 fixed in the rotating outer cylinder 3 to rotate.

[0026] Based on the technical problem in the prior art that when the channel gate revolving door is in operation, excessive impact force is likely to cause connection failure and poor positioning, in this embodiment, an automatic revolving door device is prepared, which changes the direction of a part of the impact force during braking, so that the impact force along the forward direction of the gate is reduced, and the decomposed force is perpendicular to the direction of the impact force, and becomes a pressure acting on the connecting and fixing sleeve to cause it to undergo elastic deformation. Since the connecting and fixing sleeve is originally subjected to the gravity from the rotating outer cylinder and the gate, the positive pressure on the connecting and fixing sleeve is increased. Since the friction force is equal to the product of the positive pressure and the friction coefficient, under the condition of increased positive pressure, the friction force in the opposite direction of the impact force increases, thereby increasing the braking force and increasing the effectiveness of the connection. Furthermore, in the present embodiment, when the fixed connecting sleeve is subjected to the positive pressure, elastic deformation will occur in the radial direction, the inclined surface where the connecting fixing seat contacts the connecting fixing sleeve will be pressed, the static friction between the two will increase, and at the same time, the keyway on the connecting fixing sleeve will be deformed to produce a reverse force. This elastic deformation is the result of the work done by the positive pressure on the fixed connecting sleeve. Since the positive pressure is decomposed and transformed from the impact force generated by the rotational force, its essence is that the work done by the impact force in the radial direction is changed into work done in the vertical direction. In this way, the energy generated by the impact force is consumed, thereby eliminating the positioning deviation caused by the connection failure.

[0027] In this embodiment, force decomposition is utilized to partially decompose the impact force generated when the gate rotates into positive pressure in the vertical direction. Combined with keyway locking technology, it is possible to effectively eliminate positioning deviations that may cause connection failure and achieve effective connection. At the same time, the prepared automatic revolving door device has a simple structure, is easy to install, has good reliability, and does not loosen during the swinging process.

[0028] For further information, see Figure 2 , Figure 2 The present invention is a schematic structural diagram of a connecting and fixing sleeve in an automatic revolving door device. As shown in the figure, the fixed connecting sleeve 5 includes a circular base plate 50, a first circular through hole 501 is provided at the center of the circular base plate 50, a first key groove 502 is provided inside the first circular through hole 501, a connecting panel 51 perpendicular to the circular base plate 50 is fixedly provided along the edge of the first circular through hole 501, an opening is provided at a position corresponding to the first key groove 502, wherein the outer facade of the connecting panel 51 is an inclined surface, and a rectangular opening is also provided on the connecting panel 51.

[0029] In this embodiment, the fixed connecting sleeve 5 is sleeved with the rotating shaft of the reducer 11 through the first circular through hole 501 and the connecting panel 51, wherein the inner side of the connecting panel is in close contact with the rotating shaft of the reducer 11, and a plurality of rectangular openings are provided on the connecting panel 51, and the rectangular openings are evenly distributed on the connecting panel. By providing the rectangular openings, it is beneficial to sleeve the connecting fixed sleeve 5 with the rotating shaft of the reducer 11. In addition, in this embodiment, the material of the fixed connecting sleeve 5 can be selected from aluminum alloy or stainless steel.

[0030] In some embodiments, Figure 3 As shown, the connecting and fixing seat 2 includes a circular connecting and fixing plate 21, an assembly connecting column 22 located at the center position of the lower end surface of the circular connecting and fixing plate 21, and a fixed connecting plate 23 located at the center position of the upper end surface of the circular connecting and fixing plate 21, wherein a second circular through hole 210 is provided in the middle of the circular connecting and fixing plate 21, the edge of the circular connecting and fixing plate 21 is a bevel, the assembly connecting column 22 is a hollow cylindrical structure, the inner side of the assembly connecting column 22 is a bevel forming a certain angle with the axial direction, and the inner diameter of the upper end of the assembly connecting column 22 is the same as the diameter of the second circular through hole 210.

[0031] Furthermore, a second key groove 220 is provided on the inner side of the assembly connection column 22 , the upper end of the second key groove 220 extends to the upper edge of the second circular through hole 210 , and the lower end of the second key groove 220 extends to the inner bottom of the assembly connection column 22 .

[0032] In this embodiment, when the connecting and fixing seat 2 is sleeved with the connecting and fixing sleeve 5 through the assembling connecting column 22, since the outer facade of the connecting panel 51 of the connecting and fixing sleeve 5 is an inclined surface, in this embodiment, the inner side of the assembling connecting column 22 is also set to be an inclined surface at a certain angle to the axial direction, wherein the inclination angle of the inner side inclined surface of the assembling connecting column 22 is the same as the inclination angle of the outer facade of the connecting panel 51. Therefore, when the connecting and fixing seat 2 is sleeved with the connecting and fixing sleeve 5 through the assembling connecting column 22, the contact surface between the two is an inclined surface at a certain angle to the axial direction; and when the rotating outer cylinder 3 is covered on the connecting and fixing seat 2, since the edge of the circular connecting and fixing plate 21 on the connecting and fixing seat 2 is an inclined surface, the bottom of the rotating outer cylinder 3 is also provided with a groove matched with the inclined surface. Therefore, the contact surface between the connecting and fixing seat 2 and the rotating outer cylinder 3 is also an inclined surface at a certain angle to the axial direction.

[0033] In some embodiments, a connecting key is provided on the shaft of the reducer 11, and the connecting key, the first key slot 502 and the second key slot 220 form a key slot locking position. In this embodiment, by providing a connecting key on the shaft of the reducer, when the shaft of the reducer 11 is sleeved with the connecting and fixing sleeve 5 and the connecting and fixing seat 2, the key and the key slot (220 and 502) are installed in a position direction corresponding to the key, and the key slot locking technology makes the connection between the shaft of the reducer 11 and the connecting and fixing sleeve 5 and the connecting and fixing seat 2 more stable.

[0034] Furthermore, a first opening portion 30 is provided at the bottom of the rotating outer cylinder 3 for the fixed connecting plate 23 on the connecting fixing seat 2 to pass through, and a second opening portion 31 is provided on one side of the rotating outer cylinder 3, and the second opening portion 31 is used to set a gate.

[0035] In this embodiment, a first opening portion 30 is provided at the bottom of the rotating outer cylinder 3 , and a second opening portion 31 is provided at one side of the rotating outer cylinder 3 , wherein the bottom of the second opening portion 31 is connected to one end of the first opening portion 30 .

[0036] Furthermore, a shaft seat 7 is provided on the inner side of the top of the rotating outer cylinder 3, one end of the shaft seat 7 is connected to a bearing 8 located outside the rotating outer cylinder 3, and the other end of the shaft seat 7 is connected to the top of a door clamp assembly 6 provided in the rotating outer cylinder 3, and the door clamp assembly 6 is used to fix the gate 4.

[0037] In addition, in this embodiment, the motor 10 may be a brushless programmable motor, which can reduce the rotation torque by controlling the reducer 11, thereby controlling the braking process of the automatic revolving door device.

[0038] In some embodiments, a method for an automatic revolving door device is also provided, characterized in that it includes the steps of:

[0039] S10, installing the motor and the reducer into the rotating base, sleeve-connecting the fixing sleeve on the reducer, and fixing the tapered needle roller bearing on the upper end surface of the motor;

[0040] S20, sleeve the connection fixing seat onto the connection fixing sleeve, and fix the connection fixing sleeve and the connection fixing sleeve onto the reducer with screws;

[0041] S30, fixing the door clamp assembly on the connecting and fixing seat, installing the gate on the door clamp assembly, and arranging the rotating outer cylinder cover above the connecting and fixing seat.

[0042] In this embodiment, during the installation of the automatic revolving door device, first, the motor 10 is connected to the reducer 11 and installed into the rotating base 1 and fastened with screws. Next, the connecting and fixing sleeve 5 and the rotating shaft of the reducer 11 are installed in a position direction corresponding to the connecting key and the first key groove 502. A threaded hole for screw connection is provided on the circular bottom plate 50 of the connecting and fixing sleeve 5. Thereafter, a tapered needle roller bearing 12 is installed on the upper end surface of the rotating base 1, and a connecting and fixing seat 2 is installed on the connecting and fixing sleeve 5. When the connecting and fixing seat 2 and the connecting and fixing sleeve 5 are installed, they are installed in a position direction corresponding to the connecting key and the first key groove 502, thereby realizing the keyway locking and positioning of the connecting key with the first key groove 502 and the second key groove 220, and the connecting and fixing seat 2 is installed in the connecting and fixing sleeve 5. The lower edge of the connecting and fixing seat 2 contacts the lower end of the inner ring of the tapered needle roller bearing 12. At the same time, the lower end surface of the circular connecting and fixing plate 21 of the connecting and fixing seat 2 contacts the top of the inner ring of the tapered needle roller bearing 12. The circular connecting and fixing plate 21 of the connecting and fixing seat 2 is provided with a threaded hole for screw connection. The position of the threaded hole on the circular connecting and fixing plate 21 of the connecting and fixing seat 2 corresponds to the position of the threaded hole on the circular bottom plate 50 of the connecting and fixing sleeve 5. The connecting and fixing seat 2 and the connecting and fixing sleeve 5 can be fixedly connected at the same time by using the same screw. The circular connecting and fixing plate 21 of the connecting and fixing seat is also provided with an ejection screw hole position, which is convenient for disassembly of the connecting and fixing seat 2 from the ejection screw hole position with screws.

[0043] Furthermore, after the connecting and fixing seat 2 is threadedly connected to the rotating shaft of the reducer 11 through the connecting and fixing sleeve 5, the lower end of the door clamp assembly 6 is inserted into the first circular through hole 210 of the circular connecting and fixing plate 21 of the connecting and fixing seat 2 for fixing. Screw holes are provided on the front and side surfaces of the fixed connecting plate 23 of the connecting and fixing seat 2. The connecting and fixing seat 2 and the lower end of the door clamp assembly 6 can be fixed by a screw. Thereafter, the gate 4 is fixed to the door clamp assembly 6 by a threaded connection method, and the rotating outer cylinder 3 with the rotating shaft seat 7 fixedly connected to the inner side of the top is installed above the connecting and fixing seat 2. The upper end of the door clamp assembly 6 is connected to the rotating shaft seat 7 fixed on the top of the rotating outer cylinder. Finally, a bearing 8 is installed on the top of the rotating outer cylinder 3 to form a complete automatic rotating door device.

[0044] In summary, in the automatic revolving door device prepared in the present application, during the braking process, the surface where the connecting fixing sleeve and the connecting fixing seat are in axial contact is an inclined surface, and static friction is generated by deformation of the inclined surface and the keyway is deformed to generate a reverse force. At the same time, the impact force generated during rotation is decomposed to generate a downward positive pressure, so that the total positive pressure is increased. Combined with the keyway locking technology, the connection failure positioning deviation can be effectively eliminated to achieve an effective connection with zero deviation. Furthermore, the surface where the connecting fixing seat and the rotating outer cylinder are in axial contact is also an inclined surface, and the inclined surface deformation will also occur to generate Static friction is generated, thereby making the connection between the two more stable; in addition, when the gate and the door clamp assembly in the present application are rotating, the tapered needle roller bearing arranged on the top of the rotating base can support the load of the gate and the door clamp assembly, reduce the friction coefficient, and control the noise decibel of the prepared automatic revolving door device during operation within 30 decibels. The automatic revolving door device prepared in the present invention has a simple structure, is easy to install, has good reliability, and does not loosen during the swinging process. It can effectively solve the technical problems of connection failure and poor positioning caused by excessive impact force during the operation of the channel gate revolving door in the prior art.

[0045] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. An automatic revolving door device, characterized in that: It comprises a rotating base, a connecting and fixing base, a rotating outer cylinder and a gate, wherein a motor and a reducer are arranged in the rotating base, a tapered needle roller bearing is fixedly arranged on the upper end surface of the rotating base, a rotating shaft of the reducer protrudes from the upper end surface of the rotating base, the connecting and fixing base is sleeved on the rotating shaft of the reducer through a connecting and fixing sleeve, a keyway is adopted between the rotating shaft of the reducer and the connecting and fixing sleeve and the connecting and fixing base for locking and positioning, the surface of the connecting and fixing sleeve in axial contact with the connecting and fixing base is an inclined surface, the lower edge of the connecting and fixing base is in contact with the lower end of the inner ring of the tapered needle roller bearing, a groove matching with the connecting and fixing base is arranged at the bottom of the rotating outer cylinder, the rotating outer cylinder is sleeved with the rotating base through the connecting and fixing base, a door clamp assembly is also arranged in the rotating outer cylinder, and the door clamp assembly is used to fix the gate; The connecting and fixing sleeve comprises a circular bottom plate, a first circular through hole is arranged at the center of the circular bottom plate, a first key slot is arranged inside the first circular through hole, a connecting panel perpendicular to the circular bottom plate is arranged along the edge of the first circular through hole, and an opening is arranged at a position of the connecting panel corresponding to the first key slot; The outer facade of the connection panel is an inclined surface, and a rectangular opening is also provided on the connection panel; The connecting and fixing seat comprises a circular connecting and fixing plate, an assembly connecting column located at the center of the lower end surface of the circular connecting and fixing plate, and a fixed connecting plate located at the center of the upper end surface of the circular connecting and fixing plate, wherein a second circular through hole is provided in the middle of the circular connecting and fixing plate, and the edge of the circular connecting and fixing plate is a bevel; The assembly connection column is a hollow cylindrical structure, the inner side of the assembly connection column is an inclined surface that forms a certain angle with the axial direction, and the inner diameter of the upper end of the assembly connection column is the same as the diameter of the second circular through hole; A second keyway is provided on the inner side of the assembly connection column, the upper end of the second keyway extends to the upper edge of the second circular through hole, and the lower end of the second keyway extends to the inner bottom of the assembly connection column; A connecting key is arranged on the rotating shaft of the reducer, and the connecting key, the first key slot and the second key slot form a key slot locking and positioning; The bottom of the rotating outer cylinder is provided with a first opening portion for the rectangular fixed connecting plate on the connecting fixing seat to pass through, and one side of the rotating outer cylinder is provided with a second opening portion, and the second opening portion is used to set a gate.

2. The automatic revolving door device according to claim 1, characterized in that: A shaft seat is arranged on the inner side of the top of the rotating outer cylinder, one end of the shaft seat is connected to a bearing located outside the rotating outer cylinder, and the other end of the shaft seat is connected to the top of a door clamp assembly arranged in the rotating outer cylinder, and the door clamp assembly is used to fix the gate.

3. The automatic revolving door device according to claim 1, characterized in that: The motor is a brushless programmable motor.

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