Automatic sunshade used in public places

Abstract

The utility model discloses an automatic sunshade used in public places, which comprises a sunshade column arranged symmetrically in front and back, the top end of the sunshade column is fixedly provided with a light sensor, the light sensor can sense the light intensity, the structure of the invention is simple, the maintenance is convenient, the use is convenient, the installation can automatically expand or contract the sunshade according to the light intensity, and the sunshade does not need to be built manually, which saves time. Labor saving, suitable for beach or park and other places with strong sunlight and ultraviolet, can automatically shade passers-by or tourists, and provide UV protection.

1 . An automatic sunshade used in public places, comprising the a sunshade column arranged symmetrically in front and back, the top end of the sunshade column is fixedly provided with a light sensor which can sense the light intensity;
 a first fixing block is fixedly arranged symmetrically on the left and right sides of the two side walls of the sunshade, a sunshade is arranged on the side of the first fixing block which is far away from the light sensor, a snap ring is fixedly arranged on both ends of the sunshade, the sunshade and the first fixing block are connected by the snap ring, a sunshade mechanism is arranged on the lower side of the sunshade, and the sunshade is connected with the sunshade mechanism through the snap ring To be connected;   the lower end of the first fixing block is arranged on the outer wall surface of the sunshade column with a limited position plate;   the top wall of the sunshade column is provided with a power control cavity, the power control cavity is provided with a power control mechanism, the lower wall of the power control cavity is provided with a sunshade control cavity, the sunshade control cavity is provided with a sunshade control mechanism, and the sunshade control mechanism is rotationally connected with the sunshade mechanism;   the lower wall of the sunshade control cavity is provided with a transmission cavity, and the transmission cavity is provided with a transmission mechanism.   
     
     
         2 . The automatic sunshade used in public places as defined in  claim 1 , wherein The power control mechanism includes a main motor fixed in the top wall of the power control cavity, the lower end of the main motor is dynamically connected with the main drive shaft, the outer wall of the main drive shaft is provided with a rotatable hollow shaft, and the hollow shaft spline is connected with the main drive shaft;
 The right wall of the power control cavity is fixedly provided with an electromagnet, the lower end of the electromagnet is fixedly provided with a spring, the lower end of the spring is fixedly provided with a magnetic slide block, the inner wall surface of the magnetic slide block is rotationally connected with the outer wall surface of the hollow shaft, the outer wall of the hollow shaft is fixedly provided with a first gear, the lower end surface of the hollow shaft is fixedly provided with a second gear, the two sides of the first gear are symmetrically provided with rotatable gears The third gear can mesh with the first gear, the lower end of the third gear is fixedly provided with a main transmission shaft, the main transmission shaft can rotate in the lower wall of the power control cavity, and the lower end of the main transmission shaft is fixedly connected with the sunshade control mechanism;   The lower end of the second gear is rotatably provided with a fourth gear, the lower wall surface of the fourth gear is fixedly provided with a secondary transmission shaft, the secondary transmission shaft is rotatably arranged between the left and right walls of the power control cavity, the lower end surface of the secondary transmission shaft is fixedly provided with a main bevel gear, the right end of the main bevel gear is fixedly provided with a secondary bevel gear, the secondary bevel gear is fixedly arranged on the outer wall surface of the main positioning shaft, and the main bevel gear The bevel gear is meshed with the auxiliary bevel gear;   The main positioning shaft is rotatably arranged in the lower wall of the power control cavity, the outer wall surface of the main positioning shaft is fixedly provided with a first pulley, the first pulley is located at the left end of the secondary bevel gear, the first pulley is connected with a belt, and the belt is connected with the transmission mechanism.   
     
     
         3 . The automatic sunshade used in public places as defined in  claim 1 , wherein The transmission mechanism comprises a rotatable main positioning shaft arranged in the transmission cavity, the outer wall surface of the main positioning shaft is fixedly provided with a second belt pulley which is connected with the belt;
 The two ends of the second belt wheel are symmetrically provided with a first driving bevel gear, the first driving bevel gear is fixed on the outer wall surface of the main positioning shaft, the upper end of the first driving bevel gear is provided with a second driving bevel gear, the second driving bevel gear is meshed with the first driving bevel gear on the side close to the symmetrical center, and the upper end surface of the second driving bevel gear is provided with a secondary positioning shaft. The auxiliary positioning shaft is rotatably arranged in the upper wall of the transmission cavity, and the upper end surface of the auxiliary positioning shaft is fixedly connected with the sunshade control mechanism.   
     
     
         4 . The automatic sunshade used in public places as defined in  claim 1 , wherein The sunshade control mechanism includes a rotatable control shaft symmetrically arranged in the sunshade control cavity, a first control bevel gear is fixedly arranged on the control shaft, a second control bevel gear is arranged at the lower end of the first control bevel gear, the second control bevel gear is meshed with the first control bevel gear, and the lower end surface of the second control bevel gear is fixedly connected with the auxiliary positioning shaft. The left and right symmetrical driving wheels are fixedly arranged on the control shaft;
 The control shaft is rotationally connected with a hollow control shaft, the hollow control shaft is fixedly provided with a third control bevel gear on one side away from the first control bevel gear, the upper end of the third control bevel gear is provided with a fourth control bevel gear, the fourth control bevel gear is meshed with the third control bevel gear, and the upper end face of the fourth control bevel gear is fixedly connected with the lower end face of the main transmission shaft.   
     
     
         5 . The automatic sunshade used in public places as defined in  claim 1 , wherein The sunshade mechanism comprises a rotatable sunshade bar arranged on the outer wall surface of the control shaft, the rear end surface of the sunshade bar is fixedly connected with the hollow control shaft, the front wall of the sunshade bar is provided with two rotatable driven shafts, the front and rear ends of the driven shaft are symmetrically provided with driven wheels, the driven wheels are paved with a drive belt, and the lower end of the drive belt is connected with the sunshade control cavity. The driving wheel is connected, and the drive belt is fixedly provided with a second fixed block which is connected with the sun visor through the snap ring.