A concealed swing mechanism for a screen door

Abstract

The utility model discloses a hidden type flat -open mechanism for shielding door, specifically relates to shielding door technical field, including the door frame in the wall body door hole and the shielding door at the door frame one side, and the shielding door one side is provided with the protective box, and the wall body one side corresponds the position of protective box and is provided with the embedded slot. The utility model first through the drive part is hidden in the inside of protective box, can carry out the protection to transmission part, does not have any external component, and through the part of protective box is embedded in the inside of embedded slot, can reduce the space occupied, and through the gap protection between the connecting shaft and protective box of setting up sealing washer, avoid the outside dust moisture to enter the protective box inside and erode the component, reduce the failure rate, and can detect the torque when switching the door through the torque detector, judge the switching door intention, thereby starting the auxiliary switching door through the double -shaft motor, reduce the force of manual switching door, reduce the labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of shielded door technology, and more specifically, to a concealed swing mechanism for shielded doors. Background Technology

[0002] The function of shielded doors is to solve the leakage problem of moving gaps. Their performance determines the electromagnetic shielding and radiation shielding effectiveness of the shielded room. As a core safety and isolation facility in modern public places, the performance of shielded doors directly affects the passage efficiency, safety level, and space utilization of the place. Hinged shielded doors have become the mainstream application type due to their large opening angle and convenient passage. The core drive components of existing swing-type platform screen doors, such as motors, gears, and drive shafts, are mostly directly installed on the outside of the door frame or the surface of the door. They are subject to long-term exposure to personnel collisions, luggage scratches, dust accumulation, and temperature and humidity changes, which can easily lead to malfunctions. Frequent maintenance not only increases costs but also easily causes operational interruptions. Secondly, existing platform screen doors mostly rely on manual pushing. Due to the heavy weight of the platform screen doors, manual opening and closing requires a large force, resulting in high labor intensity. Therefore, a concealed swing mechanism for platform screen doors is proposed. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a concealed swing mechanism for a shielding door to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a concealed swing mechanism for a shielded door, comprising a door frame located in a doorway in a wall and a shielded door located on one side of the door frame, wherein a protective box is provided on one side of the shielded door, and an embedding groove is provided on one side of the wall corresponding to the protective box. The bottom of the shielding door away from the protective box is rotatably connected to a moving wheel. The shielding door near the protective box is fixedly connected to two sides by a connecting shaft and a sealing ring. One end of the connecting shaft extends into the interior of the protective box and is fixedly fitted with a first gear. A dual-axis motor is fixedly connected to the middle of the protective box. The output ends of the dual-axis motor are symmetrically connected to drive shafts. A second gear is fixedly sleeved on one end of the drive shaft. A torque detector is installed at one end of one of the drive shafts. A sensor is installed at the top of the inner cavity of the protective box, located at the top of the shielding door. A control box is installed in the middle of the protective box.

[0005] Preferably, one side of the protective box is embedded in the middle of the embedding groove, and a sealing plate is fixedly connected to one side of the shielding door, with the sealing plate located in the middle of the door frame.

[0006] Preferably, the bottom wall of the moving wheel is in contact with the ground, and the bottom end of the protective box is embedded in the ground.

[0007] Preferably, the sealing ring is fitted over the outside of the connecting shaft, the wall of the sealing ring is in contact with the wall of the protective box, and the cross-sectional shape of the protective box is set to "U".

[0008] Preferably, the second gear is located on one side of the first gear, and the second gear meshes with the first gear.

[0009] Preferably, a stabilizing sleeve is fixedly connected to the inner cavity of the protective box at a position corresponding to the connecting shaft. The stabilizing sleeve is fitted onto one end of the connecting shaft and is located on the side of the first gear away from the shielding door.

[0010] Preferably, the detection end of the sensor penetrates through the wall of the protective box and corresponds to the wall of the shielding door.

[0011] Preferably, the control box is electrically connected to the dual-axis motor, sensor, and torque detector, and a heat dissipation mesh corresponding to the dual-axis motor is provided on one side of the protective box.

[0012] The technical effects and advantages of this utility model are as follows: 1. This utility model firstly protects the transmission components by hiding the drive components inside the protective box, eliminating the need for any external components. Furthermore, by embedding part of the protective box into the embedded groove, the space occupied can be reduced. The sealing ring can protect the gap between the connecting shaft and the protective box, preventing external dust and moisture from entering the protective box and corroding the components, thus reducing the failure rate. Moreover, the torque detector can detect the torque when the door is opened and closed, determine the intention to open and close the door, and then start the auxiliary door opening and closing via the dual-axis motor, reducing the force required to open and close the door manually and reducing labor intensity. 2. This utility model also features movable wheels that support the end of the shielding door away from the connecting shaft during opening and closing, preventing the shielding door from tilting. A sensor can detect whether the shielding door is in the closed position, indicating whether it is fully closed. A stabilizing sleeve improves the stability of the connecting shaft rotation. The cooperation of two second gears and the first gear enables synchronous driving at both ends of the shielding door, improving driving stability and preventing shaking. In summary, through the interaction of the above-mentioned multiple functions, it is possible to achieve the goal of eliminating the need for any external components, thereby protecting the transmission components, reducing the failure rate, and reducing the force required to manually open and close the door, thus reducing labor intensity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram showing the disassembled structure of the shielding door and wall of this utility model.

[0015] Figure 3 This is a partial cross-sectional structural diagram of the connection between the shielding door and the protective box of this utility model.

[0016] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0017] The attached diagram is labeled as follows: 1. Wall; 2. Door frame; 3. Embedded groove; 4. Protective box; 5. Shielding door; 6. Sealing plate; 7. Moving wheel; 8. Connecting shaft; 9. Sealing ring; 10. First gear; 11. Stabilizing sleeve; 12. Sensor; 13. Dual-axis motor; 14. Control box; 15. Drive shaft; 16. Second gear; 17. Torque detector. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Example 1 As attached Figure 1-4 The concealed swing mechanism for a shielding door shown includes a door frame 2 located in a door opening in a wall 1 and a shielding door 5 located on one side of the door frame 2. A protective box 4 is provided on one side of the shielding door 5, and an embedded groove 3 is provided on one side of the wall 1 at a position corresponding to the protective box 4. One side of the protective box 4 is embedded in the middle of the embedded groove 3, and a sealing plate 6 is fixedly connected to one side of the shielding door 5. The sealing plate 6 is located in the middle of the door frame 2. In this embodiment, the protective box 4 is partially embedded in the embedding groove 3 to achieve concealed installation in the wall and floor, avoiding protrusion and space occupation. When the door is closed, the sealing plate 6 is embedded in the middle of the door frame 2 to achieve a seal. The bottom of the shielding door 5 away from the protective box 4 is rotatably connected to a movable wheel 7. The shielding door 5 is fixedly connected to the two sides of the end near the protective box 4 with a connecting shaft 8 and a sealing ring 9. One end of the connecting shaft 8 extends into the interior of the protective box 4 and is fixedly fitted with a first gear 10. The bottom wall of the movable wheel 7 is in contact with the ground, the bottom of the protective box 4 is embedded in the ground, the sealing ring 9 is sleeved on the outside of the connecting shaft 8, the wall of the sealing ring 9 is in contact with the wall of the protective box 4, the cross-sectional shape of the protective box 4 is set as "U" shape, the inner cavity of the protective box 4 is fixedly connected to the corresponding position of the connecting shaft 8, the stabilizing sleeve 11 is sleeved on one end of the connecting shaft 8, and the stabilizing sleeve 11 is located on the side of the first gear 10 away from the shielding door 5; In this embodiment, the shielding door 5 is rotatably mounted on one side of the protective box 4 via the connecting shaft 8, and the gap between the connecting shaft 8 and the protective box 4 is sealed and protected by the sealing ring 9 to prevent dust and moisture from entering the interior of the protective box 4. The moving wheel 7 can support the end of the shielding door 5 away from the protective box 4, improving the support stability of the shielding door 5 when it is rotated and opened, and avoiding the running jam caused by the door sagging. The stabilizing sleeve 11 improves the rotation stability of the connecting shaft 8 and prevents shaking.

[0020] Example 2 Based on Embodiment 1, this embodiment also provides a concealed swing mechanism for a shielding door, as shown in the attached figure. Figure 3 , 4 As shown, a dual-axis motor 13 is fixedly connected to the middle of the protective box 4. The output end of the dual-axis motor 13 is symmetrically connected to a drive shaft 15. A second gear 16 is fixedly sleeved on one end of the drive shaft 15. A torque detector 17 is provided on one end of one of the drive shafts 15. A sensor 12 is provided at the top of the inner cavity of the protective box 4, located at the top of the shielding door 5. A control box 14 is provided in the middle of the protective box 4. The second gear 16 is located on one side of the first gear 10. The second gear 16 meshes with the first gear 10. The detection end of the sensor 12 penetrates the wall of the protective box 4 and corresponds to the wall of the shielding door 5. The control box 14 is electrically connected to the dual-axis motor 13, the sensor 12, and the torque detector 17. A heat dissipation mesh corresponding to the dual-axis motor 13 is opened on one side of the protective box 4. In this embodiment, by starting the dual-axis motor 13 to control the drive shaft 15 to drive the second gear 16 to rotate, the two first gears 10 are controlled to drive the connecting shaft 8 to rotate synchronously. This can assist in the rotation and opening of the shielding door 5, so that the force on both sides of the door is even and avoids shaking caused by force on one side. The torque detector 17 can monitor the change of transmission torque in real time, and the sensor 12 can detect the position of the shielding door 5 to determine whether the shielding door 5 is closed. When the door encounters an obstacle during rotation, the torque detector 17 detects a sudden increase in torque. At this time, the control box 14 immediately controls the dual-axis motor 13 to stop driving. When the door is suddenly pulled while closing, a force is generated to open it. At this time, the connecting shaft 8 drives the first gear 10, which in turn drives the second gear 16 to drive the drive shaft 15, generating a rotational force. At this moment, the value of the torque detector 17 will suddenly increase, and in conjunction with the sensor 12, it will detect whether the shielding door 5 has moved. The control box 14 controls the dual-axis motor 13 to start, causing the drive shaft 15 to drive the second gear 16 to control the rotation of the shielding door 5 in sequence, reducing the force required to open the shielding door 5 and thus saving effort. It should be noted that a manual locking mechanism is provided at one end of the shielding door 5, and a sealing mechanism is provided between the sealing plate 6 and the door frame 2. The specific structure can be set according to actual needs. As this is existing technology, it will not be elaborated on further. Furthermore, the dual-axis motor 13 described in this application is a geared motor without self-locking function, with its own cooling fan. The forward and reverse rotation of the output shaft of the dual-axis motor 13 can be controlled by the control box 14. Both the control box 14 and the dual-axis motor 13 are existing technologies and can be set according to actual needs, so they will not be elaborated on further. Meanwhile, after the shielding door 5 described in this application is closed, a sensor plate is provided on the top of the shielding door 5 at the position corresponding to the sensor 12, and the sensor 12 and the sensor plate work together to detect whether the shielding door 5 is closed; The sensor 12 described in this application is a positioning sensor, model number: MPA-323THTP0; the torque detector 17 is model number: SBT850A.

[0021] The working principle of this utility model is as follows: When the shielding door 5 is unlocked and pulled, the connecting shaft 8 controls the stabilizing sleeve 11 to rotate the drive shaft 15. At this time, the torque detector 17 detects the rotation torque of the drive shaft 15. Then, the control box 14 controls the dual-axis motor 13 to drive the drive shaft 15 to rotate, reducing the force required to manually open the shielding door 5 and saving effort. Until the rotation torque of the drive shaft 15 further increases, the shielding door 5 is opened to the maximum position, and the dual-axis motor 13 is closed. When the door is closed, the sensor 12 detects whether the shielding door 5 is in the closed position, which can determine whether the shielding door 5 is closed in place. During the closing process, the torque detector 17 detects the torque. At this time, the control box 14 will control the dual-axis motor 13 to drive the drive shaft 15 to rotate in the opposite direction, reducing the resistance of manually closing the door and saving effort. When the shielding door 5 encounters an abnormal obstruction during the closing or opening process, the torque detector 17 increases the torque, and the control box 14 will control the dual-axis motor 13 to stop, which plays a protective role and avoids pinching or collision. During the opening or closing process, the shielding door 5 is always supported on one side by the moving wheels 7, which improves the stability of the shielding door 5.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concealed swing mechanism for a shielded door, comprising a door frame (2) located in a doorway in a wall (1) and a shielded door (5) located on one side of the door frame (2), characterized in that: A protective box (4) is provided on one side of the shielding door (5), and an embedded groove (3) is provided on one side of the wall (1) at the corresponding position of the protective box (4). The bottom of the shielding door (5) away from the protective box (4) is rotatably connected to a moving wheel (7). The shielding door (5) is fixedly connected to a connecting shaft (8) and a sealing ring (9) on both sides of the end of the shielding door (5) close to the protective box (4). One end of the connecting shaft (8) extends into the interior of the protective box (4) and is fixedly fitted with a first gear (10). A dual-axis motor (13) is fixedly connected to the middle of the protective box (4). The output end of the dual-axis motor (13) is symmetrically connected to a drive shaft (15). A second gear (16) is fixedly sleeved on one end of the drive shaft (15). A torque detector (17) is provided on one end of one of the drive shafts (15). A sensor (12) is provided at the top of the inner cavity of the protective box (4) at the top position of the shielding door (5). A control box (14) is provided in the middle of the protective box (4).

2. The concealed swing mechanism for a shielding door according to claim 1, characterized in that: The protective box (4) is embedded in the middle of the embedding groove (3) on one side, and a sealing plate (6) is fixedly connected to one side of the shielding door (5), and the sealing plate (6) is located in the middle of the door frame (2).

3. A concealed swing mechanism for a shielding door according to claim 1, characterized in that: The bottom wall of the moving wheel (7) is in contact with the ground, and the bottom of the protective box (4) is embedded in the ground.

4. A concealed swing mechanism for a platform screen door according to claim 1, characterized in that: The sealing ring (9) is fitted around the outside of the connecting shaft (8), and the wall of the sealing ring (9) is in contact with the wall of the protective box (4). The cross-sectional shape of the protective box (4) is set as "U".

5. A concealed swing mechanism for a shielding door according to claim 1, characterized in that: The second gear (16) is located on one side of the first gear (10), and the second gear (16) meshes with the first gear (10).

6. A concealed swing mechanism for a platform screen door according to claim 1, characterized in that: A stabilizing sleeve (11) is fixedly connected to the inner cavity of the protective box (4) at a position corresponding to the connecting shaft (8). The stabilizing sleeve (11) is fitted onto one end of the connecting shaft (8), and the stabilizing sleeve (11) is located on the side of the first gear (10) away from the shielding door (5).

7. A concealed swing mechanism for a platform screen door according to claim 1, characterized in that: The detection end of the sensor (12) penetrates the wall of the protective box (4) and corresponds to the wall of the shielding door (5).

8. A concealed swing mechanism for a shielding door according to claim 1, characterized in that: The control box (14) is electrically connected to the dual-axis motor (13), sensor (12), and torque detector (17). The protective box (4) has a heat dissipation mesh corresponding to the dual-axis motor (13) on one side.

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