Low-friction positive-pressure airtight device

Abstract

The invention discloses a low-friction positive-pressure airtight device, and relates to the technical field of vehicle-mounted servo rotary tables, the low-friction positive-pressure airtight device comprises a pressure adjusting mechanism, the pressure adjusting mechanism comprises a device shell, the device shell is fixedly mounted on a vehicle, a sliding column table is fixedly mounted on the device shell, and a screw motor is fixedly mounted below the device shell; a screw is installed on an output shaft of the screw motor, a sliding rod is fixedly installed below the device shell, a lifting plate is installed on the sliding rod in a sliding mode, the lifting plate is in threaded fit with the fixed screw on the output shaft of the screw motor, a ventilation device is fixedly installed on the lifting plate, and a rotating table is rotationally installed on the device shell. And an air vent is fixedly arranged below the rotating table. The height of the rotary table camera can be adjusted by adjusting the air pressure in the rotary table, meanwhile, the direction of the rotary table camera can be freely adjusted, meanwhile, the friction force of the device structure is small, and mechanism operation is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle-mounted servo turntables, and in particular to a low-friction positive-pressure airtight device. Background Art

[0002] The airtight device has been integrated into the field of vehicle-mounted servo turntables and plays a major role in turntable adjustment. Traditional airtight devices often face problems such as excessive friction and insufficient airtightness, which affect the overall performance and reliability of the equipment. The present invention significantly improves airtightness and reduces friction loss through precise air pressure control. The air pressure regulating device can adjust the air pressure inside the airtight device to maintain the optimal sealing state, and realize the function of adjusting the vehicle-mounted servo state. By switching the adjustment mode through different air inlets, it is more adapted to the technical needs of the current field. Summary of the invention

[0003] The purpose of the present invention is to provide an airtight device that can adjust the air pressure in a turntable to adjust the height of a turntable camera. At the same time, the turntable camera can freely adjust its direction. At the same time, the friction of the device structure is small, which facilitates the operation of the mechanism.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a low-friction positive pressure airtight device, including a pressure regulating mechanism, the pressure regulating mechanism includes a device shell, the device shell is fixedly installed on the vehicle, a sliding column platform is fixedly installed on the device shell, a screw motor is fixedly installed below the device shell, a screw is installed on the output shaft of the screw motor, a sliding rod is fixedly installed below the device shell, a lifting plate is slidably installed on the sliding rod, the lifting plate and the fixed screw on the output shaft of the screw motor form a threaded match, a ventilation device is fixedly installed on the lifting plate, and the ventilation device An intake pipe is fixedly installed on the top, and the ventilation device transmits gas through the intake pipe. A turntable is rotatably installed on the device shell, and a vent is fixedly provided below the turntable. There are four vents arranged in the circumferential direction of the lower surface of the turntable. The intake pipe enters the inside of the turntable through the vent to transmit air. An air baffle is rotatably installed on the turntable, and the air baffle seals the turntable when the intake pipe does not enter the inside of the turntable. A lifting seat is slidably installed in the turntable, and a turntable camera is rotatably installed on the lifting seat. The airtight device realizes the function of the servo turntable installed on the car through the turntable camera.

[0005] Furthermore, an isolation cover is fixedly installed on the lower surface of the turntable, which separates the four air vents on the lower surface of the turntable. The isolation cover covers the two diagonal air vents to form another enclosed space. A lower ventilation pipe is fixedly installed on the upper end of the isolation cover, and an upper ventilation pipe is fixedly installed on the lower end of the lifting seat. The upper ventilation pipe slides in the lower ventilation pipe, and the air in the isolation cover enters the upper ventilation pipe through the lower ventilation pipe. A piston is slidably installed on the upper ventilation pipe, and a rotating rod is rotatably installed on the piston. The rotating rod is rotatably connected to the turntable camera.

[0006] Furthermore, a rotating plate is rotatably mounted on the lifting seat, a rotating wheel is rotatably mounted on the rotating plate, a torsion spring is arranged between the rotating plate and the lifting seat, and the lifting seat slides on the inner wall of the rotating table through the rotating wheel to reduce sliding friction, and the extrusion force is ensured by the torsion spring on the rotating plate.

[0007] Furthermore, a mounting base is fixedly mounted on the device housing, a driving motor is fixedly mounted on the mounting base, a rotating gear is fixedly mounted on the output shaft of the driving motor, a gear ring is fixedly mounted on the rotating table, and the gear ring and the rotating gear form a gear match.

[0008] Furthermore, the upper vent pipe and the lower vent pipe are oil-sealed to ensure air tightness.

[0009] Furthermore, a sealing ring is fixedly mounted on the air intake pipe, and the sealing ring is tightly attached to the lower surface of the strut platform to form a seal.

[0010] Furthermore, an air inlet is fixedly mounted on the ventilation device, and the ventilation device is connected to external air through the air inlet.

[0011] Furthermore, rollers are rotatably mounted on the side of the rotating table, and the rotating table rotates on the device housing through the rollers.

[0012] Furthermore, a device base is fixedly mounted on the lower end of the device shell.

[0013] Compared with the prior art, the present invention has the following advantages: (1) the present invention can adjust the air pressure in the rotating table to adjust the height of the turntable camera, and the turntable camera can freely adjust its direction. At the same time, the friction of the device structure is small, which is convenient for the operation of the mechanism; (2) the present invention can adjust the angle of the rotating table. After adjusting the rotating table, the tilt angle of the turntable camera can be adjusted to realize the free switching of the positive pressure airtight device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of a lifting seat of the present invention.

[0016] Figure 3 It is a schematic diagram of the lifting plate of the present invention.

[0017] Figure 4 It is a schematic diagram of the turntable camera of the present invention.

[0018] Figure 5 It is a schematic diagram of the isolation cover of the present invention.

[0019] Figure 6 It is a schematic diagram of the piston of the present invention.

[0020] Figure 7 It is a schematic diagram of the upper ventilation pipe of the present invention.

[0021] Figure 8 It is a schematic diagram of a ventilation device of the present invention.

[0022] Fig. 9 It is a schematic diagram of a rotating table of the present invention.

[0023] Figure numbers: 1-device housing; 2-sliding column platform; 3-screw motor; 4-sliding rod; 5-lifting plate; 6-ventilation device; 7-inlet pipe; 8-sealing ring; 9-air inlet; 10-rotating table; 11-vent; 12-air baffle; 13-isolation cover; 14-lower ventilation pipe; 15-lifting seat; 16-upper ventilation pipe; 17-rotating plate; 18-rotating wheel; 19-turntable camera; 20-rotating rod; 21-piston; 22-mounting seat; 23-driving motor; 24-rotating gear; 25-device base. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0025] Example: Figure 1-Figure 9A low-friction positive-pressure airtight device is shown, comprising a pressure regulating mechanism, the pressure regulating mechanism comprising a device housing 1, the device housing 1 is fixedly mounted on a vehicle, a sliding column platform 2 is fixedly mounted on the device housing 1, a screw motor 3 is fixedly mounted below the device housing 1, a screw is mounted on the output shaft of the screw motor 3, a slide bar 4 is fixedly mounted below the device housing 1, a lifting plate 5 is slidably mounted on the slide bar 4, the lifting plate 5 forms a threaded fit with the fixed screw on the output shaft of the screw motor 3, a ventilation device 6 is fixedly mounted on the lifting plate 5, an air intake pipe 7 is fixedly mounted above the ventilation device 6, and the ventilation device 6 passes through the air intake pipe 7 transmits gas, a rotating table 10 is rotatably installed on the device housing 1, a vent 11 is fixedly arranged below the rotating table 10, and four vents 11 are arranged in the circumferential direction of the lower surface of the rotating table 10. The air inlet pipe 7 enters the rotating table 10 through the vent 11 to transmit air, and an air baffle 12 is rotatably installed on the rotating table 10. The air baffle 12 seals the rotating table 10 when the air inlet pipe 7 does not enter the rotating table 10. A lifting seat 15 is slidably installed in the rotating table 10, and a turntable camera 19 is rotatably installed on the lifting seat 15. The airtight device realizes the servo turntable function installed on the car through the turntable camera 19. The screw motor 3 starts and drives the lifting plate 5 to slide on the slide bar 4. The sliding and lifting of the lifting plate 5 drives the ventilation device 6 to rise and fall. The rising of the ventilation device 6 drives the air intake pipe 7 and the sealing ring 8 to rise. The air intake pipe 7 rises and enters the inside of the rotating table 10. The ventilation device 6 inflates the inside of the rotating table 10, and the air inside the rotating table 10 changes. The lifting seat 15 on the rotating table 10 slides upward, and the rising of the lifting seat 15 drives the turntable camera 19 to rise. The rise of the turntable camera 19 realizes the raising of the vehicle-mounted servo turntable. When the turntable camera 19 is no longer needed for monitoring, the gas pressure inside the turntable 10 is reduced, which can drive the turntable camera 19 to descend. At the same time, the turntable 10 can rotate on the device housing 1 to adjust the angle of the vehicle-mounted servo turntable.

[0026] An isolation cover 13 is fixedly installed on the lower surface of the rotating table 10. The isolation cover 13 separates the four vents 11 on the lower surface of the rotating table 10. The isolation cover 13 covers the two diagonal vents 11 to form another enclosed space. A lower ventilation pipe 14 is fixedly installed on the upper end of the isolation cover 13. An upper ventilation pipe 16 is fixedly installed on the lower end of the lifting seat 15. The upper ventilation pipe 16 slides in the lower ventilation pipe 14. The air in the isolation cover 13 enters the upper ventilation pipe 16 through the lower ventilation pipe 14. A piston 21 is slidably installed on the upper ventilation pipe 16. A rotating rod 20 is rotatably installed on the piston 21. The rotating rod 20 is rotatably connected to the turntable camera 19. The rotating table 10 rotates ninety degrees on the device housing 1, and the corresponding vent 11 above the air inlet pipe 7 is switched. The air inlet pipe 7 corresponds to the vent 11 in the isolation cover 13. The air inlet pipe 7 enters the isolation cover 13 for inflation, and the gas in the isolation cover 13 enters the upper vent pipe 16. The upper vent pipe 16 is slidably connected with the lower vent pipe 14 to ensure that when the lifting seat 15 slides on the rotating table 10, the isolation cover 13 can still transport the gas to the upper vent pipe 16. The increase in gas in the upper vent pipe 16 drives the piston 21 to rise, and the piston 21 drives the rotating rod 20 to rotate. The rotation of the rotating rod 20 drives the turntable camera 19 to rotate on the lifting seat 15, changing the inclination angle of the turntable camera 19, thereby realizing the adjustment of the height and inclination angle of the turntable camera 19 respectively. When it is necessary to reduce the positive pressure in the upper vent pipe 16 or the rotating table 10, the air inlet pipe 7 is extended into the vent 11, and the pressure can be relieved without starting the ventilation device 6.

[0027] A rotating plate 17 is rotatably mounted on the lifting seat 15, and a rotating wheel 18 is rotatably mounted on the rotating plate 17. A torsion spring is arranged between the rotating plate 17 and the lifting seat 15. The lifting seat 15 slides on the inner wall of the rotating platform 10 through the rotating wheel 18 to reduce sliding friction. The extrusion force is ensured by the torsion spring on the rotating plate 17.

[0028] A mounting base 22 is fixedly mounted on the device housing 1, a driving motor 23 is fixedly mounted on the mounting base 22, a rotating gear 24 is fixedly mounted on the output shaft of the driving motor 23, a gear ring is fixedly arranged on the rotating platform 10, and the gear ring forms a gear match with the rotating gear 24. When the driving motor 23 is started, the rotating gear 24 is driven to rotate, the rotating gear 24 drives the gear ring to rotate, and the gear ring drives the rotating platform 10 to rotate, thereby automatically adjusting the angle.

[0029] The upper vent pipe 16 and the lower vent pipe 14 are oil-sealed to ensure air tightness.

[0030] A sealing ring 8 is fixedly mounted on the air intake pipe 7, and the sealing ring 8 is tightly attached to the lower surface of the strut platform 2 to form a seal, thereby ensuring the air tightness of the air intake pipe 7 when conveying air into the strut platform 2.

[0031] An air inlet 9 is fixedly mounted on the ventilation device 6 , and the ventilation device 6 is connected to external air through the air inlet 9 .

[0032] Rollers are rotatably mounted on the side of the rotating platform 10, and the rotating platform 10 rotates on the device housing 1 through the rollers. The friction force in the rotating direction is reduced by the rollers.

[0033] A device base 25 is fixedly mounted on the lower end of the device housing 1. The airtight device is fixedly mounted on the vehicle through the device base 25.

Claims

1. A low-friction positive-pressure airtight device, comprising a pressure regulating mechanism, characterized in that: The pressure regulating mechanism comprises a device housing (1), the device housing (1) is fixedly mounted on a vehicle, a sliding column platform (2) is fixedly mounted on the device housing (1), a screw motor (3) is fixedly mounted below the device housing (1), a screw is mounted on the output shaft of the screw motor (3), a sliding rod (4) is fixedly mounted below the device housing (1), a lifting plate (5) is slidably mounted on the sliding rod (4), the lifting plate (5) and the screw fixed on the output shaft of the screw motor (3) form a threaded fit, a ventilation device (6) is fixedly mounted on the lifting plate (5), an air intake pipe (7) is fixedly mounted above the ventilation device (6), the ventilation device (6) transmits gas through the air intake pipe (7), and a rotating platform (1) is rotatably mounted on the device housing (1). 0, a vent (11) is fixedly provided below the rotating table (10), and four vents (11) are arranged in a circumferential direction of the lower surface of the rotating table (10). An air intake pipe (7) enters the interior of the rotating table (10) through the vent (11) to transmit air. An air baffle (12) is rotatably installed on the rotating table (10), and the air baffle (12) seals the rotating table (10) when the air intake pipe (7) does not enter the interior of the rotating table (10). A lifting seat (15) is slidably installed in the rotating table (10), and the lifting seat (15) and the rotating table (10) form a closed space. A turntable camera (19) is rotatably installed on the lifting seat (15), and the airtight device realizes the function of a servo turntable installed on the car through the turntable camera (19).

2. A low friction positive pressure airtight device according to claim 1, characterized in that: An isolation cover (13) is fixedly mounted on the lower surface of the rotating table (10). The isolation cover (13) separates four vents (11) on the lower surface of the rotating table (10). The isolation cover (13) covers two diagonal vents (11) to form another closed space. A lower ventilation pipe (14) is fixedly mounted on the upper end of the isolation cover (13). An upper ventilation pipe (16) is fixedly mounted on the lower end of the lifting seat (15). The upper ventilation pipe (16) slides in the lower ventilation pipe (14). Air in the isolation cover (13) enters the upper ventilation pipe (16) through the lower ventilation pipe (14). A piston (21) is slidably mounted on the upper ventilation pipe (16). A rotating rod (20) is rotatably mounted on the piston (21). The rotating rod (20) is rotatably connected to the rotating table camera (19).

3. A low-friction positive-pressure airtight device according to claim 2, characterized in that: A rotating plate (17) is rotatably mounted on the lifting seat (15), a rotating wheel (18) is rotatably mounted on the rotating plate (17), a torsion spring is arranged between the rotating plate (17) and the lifting seat (15), and the lifting seat (15) slides on the inner wall of the rotating platform (10) via the rotating wheel (18).

4. A low-friction positive-pressure airtight device according to claim 3, characterized in that: A mounting seat (22) is fixedly mounted on the device housing (1), a driving motor (23) is fixedly mounted on the mounting seat (22), a rotating gear (24) is fixedly mounted on the output shaft of the driving motor (23), a gear ring is fixedly arranged on the rotating platform (10), and the gear ring and the rotating gear (24) form a gear match.

5. A low-friction positive-pressure airtight device according to claim 4, characterized in that: The upper vent pipe (16) and the lower vent pipe (14) are oil sealed.

6. A low-friction positive-pressure airtight device according to claim 5, characterized in that: A sealing ring (8) is fixedly mounted on the air intake pipe (7), and the sealing ring (8) is tightly attached to the lower surface of the strut platform (2) to form a seal.

7. A low-friction positive-pressure airtight device according to claim 6, characterized in that: An air inlet (9) is fixedly mounted on the ventilation device (6), and the ventilation device (6) is connected to external air via the air inlet (9).

8. A low-friction positive-pressure airtight device according to claim 7, characterized in that: A roller is rotatably mounted on the side of the rotating table (10), and the rotating table (10) rotates on the device housing (1) via the roller.

9. A low-friction positive-pressure airtight device according to claim 8, characterized in that: A device base (25) is fixedly mounted on the lower end of the device housing (1).

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