Ceiling screen turnover mechanism

Abstract

A ceiling screen turnover mechanism belongs to the field of intelligent equipment ceiling screen turnover mechanisms and is characterized in that a guide rod and a lead screw with axes on the same horizontal plane are mounted on a fixing plate, two ends of the lead screw are fixedly supported by bearings, a lead screw nut is sleeved on the guide rod and the lead screw, a synchronous pulley is mounted at one end of the lead screw, and the lead screw nut is connected with a screen connecting seat; the screen connecting seat is fixed on the screen, the screen rotating shaft connected with the connecting rod is mounted on the screen, the connecting rod is connected with the connecting rod fixing seat, the connecting rod fixing seat is fixed on the fixing plate, the driving module is mounted on the fixing plate, the pinion is mounted on an output shaft of a driving motor of the driving module, and the gearwheels meshed with the pinion are mounted on two sides of the pinion. The large gear is installed on the gear support through a gear shaft, a synchronous belt wheel is installed on the gear shaft, and the synchronous belt wheel on the gear shaft is connected with the synchronous belt wheel on the lead screw through a synchronous belt. The ceiling screen has the advantages of being stable, reliable, low in noise and capable of enhancing the comfort degree of a user when the user uses the ceiling screen.

Description

Technical Field

[0001] The utility model belongs to the field of ceiling screens of intelligent equipment, and in particular relates to a flip mechanism of a ceiling screen. Background Art

[0002] With the continuous development of ceiling screen technology, flip-up ceiling screens have gradually become a standard product. At present, in order to achieve the automatic flipping effect, either a screw and connecting rod are used in the middle of the screen to achieve flipping, or a bevel gear drive shaft is used to transmit power to both sides of the screen, and the screw and connecting rod on both sides are used to achieve screen flipping. These two automatic flipping mechanisms have the following defects: 1. A screw is used in the middle of the screen for transmission, and the screens at both ends are suspended in the air. If the screen is slightly larger, it will cause the two sides of the screen to vibrate during movement, affecting the flipping effect; 2. The bevel gear is used in conjunction with the screw and connecting rod on both sides for transmission. The bevel gear has a complex tooth shape, is difficult to process, and requires high processing precision. The transmission process will generate a lot of noise and axial thrust, which will affect the bearing life and increase the bearing noise. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned defects and provide a ceiling screen flipping mechanism, which is stable and reliable, has low noise, and enhances the comfort of users when using the ceiling screen.

[0004] The purpose of the utility model is achieved through the following technical solutions: a ceiling screen flipping mechanism, characterized in that: it includes a fixed plate, a guide rod, a screw nut, a screw, a synchronous pulley, a synchronous belt, a connecting rod fixing seat, a driving module, a screen connecting seat, a connecting rod and a screen rotating shaft; brackets are respectively installed on both sides of the fixed plate, a group of guide rods and screw rods are installed on each bracket, the axes of the guide rods and screw rods are in the same horizontal plane, bearings are set on both ends of the screw rods, and fixedly supported on the brackets, screw nuts are set on the guide rods and screw rods, a synchronous pulley is installed on one end of the screw rod, the screw nut is connected to the screen connecting seat through a pin shaft, the screen connecting seat is fixed on the screen, and two screens are symmetrically installed on the screen. The screen rotation shaft is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the connecting rod fixing seat. The connecting rod fixing seat is symmetrically fixed on the fixing plate. The driving module is installed on the fixing plate and is located between the two connecting rod fixing seats. The driving module includes a driving motor, a motor bracket, a pinion, a large gear, a gear shaft and a gear support. The motor bracket is fixed to the fixing plate, and the driving motor is fixed to the motor bracket. A pinion is installed on the output shaft of the driving motor, and a large gear meshing with the pinion is installed on both sides of the pinion. The large gear is installed on the gear support through the gear shaft, and a synchronous pulley is installed on the gear shaft. The synchronous pulley on the gear shaft is connected to the synchronous pulley on the screw through a synchronous belt.

[0005] A damping sleeve is installed between the connecting rod, the connecting rod fixing seat and the screen rotation axis.

[0006] A magnet is installed at the rotation center of the connecting rod on one side, and a magnetic weaving plate is installed opposite to the magnet. The magnetic weaving plate is fixed on the magnetic weaving bracket, and the magnetic weaving bracket is fixed on the fixed plate.

[0007] A Hall bracket is installed on the fixed plate, a Hall plate is fixed on the Hall bracket, the Hall plate is located at the initial position of the screen, a magnet is installed on the lead screw nut, and the magnet is arranged opposite to the Hall plate.

[0008] The edges of the fixing plate and the screen are provided with locking tongue modules corresponding to each other. The locking tongue module comprises a locking tongue on the fixing plate and a locking tongue hole on the screen for inserting the locking tongue.

[0009] The beneficial effects of the utility model are:

[0010] 1. Gears, synchronous belts and screws are used for transmission. The axes of all transmission parts are parallel to each other. The drive motor uses a DC brushless motor with lower noise. Reasonable speed ratio and installation design can effectively reduce the noise of the synchronous belt and the overall noise of the product.

[0011] 2. A damping sleeve is installed between the connecting rod, the connecting rod fixing seat and the screen rotation axis to ensure the stability of the screen when it stops at any position and is bumped and vibrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the screen of the utility model in a closed state.

[0013] Figure 2 It is a schematic diagram of the structure of the utility model when the screen is in an open state.

[0014] Figure 3 This is a schematic diagram of the drive module structure of the utility model.

[0015] in:

[0016] 1-fixed plate, 2-guide rod, 3-screw nut, 4-screw, 5-outer frame, 6-synchronous pulley, 7-synchronous belt, 8-connecting rod fixing seat, 9-drive module, 10-lock tongue module, 1-1 magnetic woven plate, 12-magnetic woven bracket, 13-Hall plate, 1-4 Hall bracket, 15-screen connecting seat, 16-screen, 17-connecting rod, 18-screen rotation axis, 91-drive motor, 92-motor bracket, 93-small gear, 94-large gear, 95-gear shaft, 96-gear support. DETAILED DESCRIPTION

[0017] Embodiment: A ceiling screen flip mechanism. This embodiment takes the intelligent cockpit ceiling screen flip mechanism as an example. Figure 1As shown, two brackets are installed in parallel on the fixed plate 1, respectively located on both sides of the fixed plate 1, and a set of guide rods 2 and screw rods 4 are installed on each bracket. The axes of the guide rods 2 and screw rods 4 are in the same horizontal plane, and the two ends of the screw rods 4 are fitted with bearings and fixedly supported on the brackets. The guide rods 2 and screw rods 4 are fitted with screw nuts 3, and a synchronous pulley 6 is installed at one end of the screw rod 4, as shown in FIG. Figure 2 As shown, the screw nut 3 is connected to the screen connecting seat 15 through a pin shaft, and the two can rotate freely. The screen connecting seat 15 is fixed on the bottom edges on both sides of the back of the screen 16. The back of the screen 16 is near the middle of the screen, located between the two screen connecting seats 15, and two screen rotation shafts 18 are symmetrically installed. The screen rotation shaft 18 is connected to one end of the connecting rod 17, and the two can rotate freely. The other end of the connecting rod 17 is connected to the connecting rod fixing seat 8, and the connecting rod fixing seat 8 is symmetrically fixed on the side of the fixing plate 1, located on the inner side of the brackets on both sides. Damping sleeves are installed between the connecting rod 17, the connecting rod fixing seat 8 and the screen rotation shaft 18 to ensure the stability of the screen when it is bumped and vibrated after it stops at any position. Figure 1 and Figure 3 As shown, the driving module 9 is mounted on the fixed plate 1 and is located between the two connecting rod fixing seats 8, including a driving motor 91, a motor bracket 92, a small gear 93, a large gear 94, a gear shaft 95 and a gear support 96. The motor bracket 92 is fixed to the fixed plate 1, and the driving motor 91 uses a DC brushless motor and is fixed to the motor bracket 92. A small gear 93 is mounted on the output shaft of the driving motor 91, and large gears 94 meshing with the small gear 93 are mounted on both sides of the small gear 93. The large gear 94 is mounted on the gear support 96 through the gear shaft 95. A synchronous pulley 6 is mounted on the gear shaft 95, and a synchronous belt 7 is sleeved on the synchronous pulley 6 of the screw rod 4 and the gear shaft 95. The synchronous pulley 6 transmits power to the synchronous pulley 6 on the screw rod 4 through the synchronous belt 7, thereby driving the screw rod 4 to rotate and driving the screw nut 3 to move back and forth; as shown Figure 1 As shown, a magnet is installed at the rotation center of the connecting rod 17 on one side, and a magnetic woven plate 11 is installed opposite the center of the magnet. The magnetic woven plate 11 is fixed to the magnetic woven bracket 12. When the connecting rod 17 rotates, the magnetic field of the magnet on the connecting rod 17 will change, so as to determine the rotation angle of the connecting rod 17, and the flip angle of the screen is determined by the rotation angle of the connecting rod 17; a Hall bracket 14 is installed on the fixed plate 1, and a Hall plate 13 is fixed on the Hall bracket 14. The Hall plate 13 is located at the end point of the movement of the lead screw nut 3, and a magnet is installed on the lead screw nut 4 on one side. When the lead screw nut 3 moves to the end point, the magnet is opposite to the Hall plate 13, and the magnetic field of the magnet is induced by the Hall plate to detect the starting position of the screen and to calibrate the initial position of the screen. Figure 1As shown, when the driving motor 91 is running, power is transmitted to the screw rods 4 on both sides through the small gear 93, the large gear 94, two sets of synchronous pulleys 6, and the synchronous belt 7. The screw rods 4 on both sides rotate simultaneously and in the same direction, driving the two screw nuts 3 to move together, and the rotation of the screen 16 is realized through the screen connecting seat 15 and the connecting rod 17. The edges of the fixed plate 1 and the screen 16 are correspondingly provided with a lock tongue module 10. The lock tongue module 10 includes a lock tongue on the fixed plate 1 and a lock tongue hole on the screen 16 for inserting the lock tongue on the fixed plate 1. When the screen 16 is closed, the lock tongue module 10 extends the lock tongue into the lock tongue hole of the screen 16 to fix the screen 16.

[0018] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be made by other technical personnel in this field without expending creative labor falls within the scope of protection of the patent.

Claims

1. A ceiling screen flip mechanism, characterized by: It includes a fixed plate, a guide rod, a screw nut, a screw, a synchronous pulley, a synchronous belt, a connecting rod fixing seat, a driving module, a screen connecting seat, a connecting rod and a screen rotating shaft; brackets are respectively installed on both sides of the fixed plate, and a group of guide rods and screw rods are installed on each bracket, the axes of the guide rods and screw rods are in the same horizontal plane, bearings are set on both ends of the screw rods, and fixedly supported on the brackets, screw nuts are set on the guide rods and screw rods, a synchronous pulley is installed at one end of the screw rod, the screw nut is connected to the screen connecting seat, the screen connecting seat is fixed on the screen, two screen rotating shafts are symmetrically installed on the screen, and the screen rotating shaft is connected to one end of the connecting rod, The other end of the connecting rod is connected to the connecting rod fixing seat, and the connecting rod fixing seat is symmetrically fixed on the fixing plate. A driving module is installed on the fixing plate and is located between the two connecting rod fixing seats. The driving module includes a driving motor, a motor bracket, a pinion, a large gear, a gear shaft and a gear support. The motor bracket is fixed to the fixing plate, and the driving motor is fixed to the motor bracket. A pinion is installed on the output shaft of the driving motor, and a large gear meshing with the pinion is installed on both sides of the pinion. The large gear is installed on the gear support through the gear shaft, and a synchronous pulley is installed on the gear shaft. The synchronous pulley on the gear shaft is connected to the synchronous pulley on the screw through a synchronous belt.

2. The ceiling screen flipping mechanism according to claim 1, characterized in that: A damping sleeve is installed between the connecting rod, the connecting rod fixing seat and the screen rotation axis.

3. The ceiling screen flipping mechanism according to claim 1, characterized in that: A magnet is installed at the center of the connecting rod rotating shaft on one side, and a magnetic weaving plate is installed opposite to the magnet. The magnetic weaving plate is fixed on the magnetic weaving bracket, and the magnetic weaving bracket is fixed on the fixed plate.

4. The ceiling screen flipping mechanism according to claim 1, characterized in that: A Hall bracket is mounted on the fixed plate, a Hall plate is fixed on the Hall bracket, a magnet is mounted on the lead screw nut, and the magnet is opposite to the Hall plate.

5. The ceiling screen flipping mechanism according to claim 1, characterized in that: The edges of the fixing plate and the screen are provided with locking tongue modules corresponding to each other. The locking tongue module comprises a locking tongue on the fixing plate and a locking tongue hole on the screen for inserting the locking tongue.

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