An intelligent flagpole that rotates in accordance with wind direction

Abstract

The present invention provides a smart flagpole that rotates in the wind direction, including a flagpole base and a flagpole body fixed on the flagpole base, wherein the flagpole body includes a fixed flagpole and a rotating flagpole, and the fixed flagpole and the rotating flagpole are connected by two freely rotatable rotating bearings. A rotating device is arranged at the top of the fixed flagpole, and the rotating device includes a rotating motor, a flagpole gear and a thrust bearing. The rotating motor is fixed on the inner wall of the top of the fixed flagpole, and the rotating shaft gear of the rotating motor is meshed with the flagpole gear. The flagpole gear is fixed at the bottom center of the thrust bearing, and the top of the thrust bearing is connected to the rotating bearing. Under the natural wind state, the present invention can pull the upper flagpole to rotate through the force of the natural wind on the flag, so that the flag automatically flies in the wind.

Description

Technical Field

[0001] The invention relates to an intelligent flagpole, in particular to an intelligent flagpole that rotates against the wind in the wind direction. Background Art

[0002] From ancient times to the present, flags have always been a symbol of the cohesion and centripetal force of the masses. In today's era, peace has become the theme of the development of the times. From countries and departments at all levels to primary and secondary schools or various large-scale sports events, flag-raising and flag-lowering ceremonies have become indispensable activities for the crowd, and the flagpole is an indispensable carrier for the flag to fly. Under normal circumstances, raising and lowering the flag or keeping the flag at a certain height can basically be completed. But we see that often due to the lack of natural wind and other meteorological conditions, the flag cannot be stretched and fluttered, especially in the middle and lower parts of the flagpole, the flag is rarely stretched and fluttered; when the flag is raised, lowered or at a certain height, due to the constant change of natural wind direction, the flag often appears to be entangled on the flagpole and cannot be stretched and fluttered. In the absence of wind or breeze, the flag cannot be stretched and fluttered well. If this kind of situation occurs during major events, it is quite regrettable. Most people feel the same and hope for changes. The inventor has developed a flagpole with automatic rotating wind supply. The rotating motor and the blower motor are both arranged at the base. The rotation encounters great resistance, requires great motor power, and has high air loss. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to address the deficiencies of the prior art and to provide an intelligent flagpole that rotates in the wind direction with low motor power and low wind loss.

[0004] Technical solution: The present invention relates to an intelligent flagpole that rotates against the wind direction, comprising a flagpole base, and a flagpole body fixed on the flagpole base, wherein the flagpole body comprises a fixed flagpole and a rotating flagpole, and the fixed flagpole and the rotating flagpole are connected by two freely rotatable rotating bearings.

[0005] The technical solution of the present invention is further defined as follows: a rotating device is arranged at the top of the fixed flagpole, and the rotating device includes a rotating motor, a flagpole gear and a thrust bearing; the rotating motor is fixed on the inner wall of the top of the fixed flagpole, the rotating shaft gear of the rotating motor is meshed with the flagpole gear, the flagpole gear is fixed at the bottom center of the thrust bearing, and the top of the thrust bearing is connected to the rotating bearing.

[0006] Furthermore, it also includes an intelligent control system, and a weather vane is arranged on the top of the rotating flagpole, the wind vane is connected to the signal input port of the intelligent control system, and the signal output port of the intelligent control system is connected to the rotating motor.

[0007] Furthermore, the intelligent control system calculates the number of pulses sent to the rotation drive motor according to the wind direction measured by the wind vane and the current angle difference of the flag. The calculation method is as follows:

[0008]

[0009] In the formula, P is the required number of pulses; β is the angle difference, which is calculated by the pre-stored current angle value and the received direction; n is 1 for forward rotation and 0 for reverse rotation; Z2 is the number of teeth on the driven gear, which is pre-stored in the intelligent control system; Z1 is the number of teeth on the driving gear, which is pre-stored in the intelligent control system; 2500 is the number of lines of the stepper motor.

[0010] Furthermore, it also includes a blowing device, which includes a blower, an air supply groove and an air outlet tube arranged inside the fixed flagpole, one end of the air supply groove is connected to the air outlet of the blower, and the other end thereof is connected to the air outlet tube, and the air outlet tube is arranged at the top of the rotating flagpole, and the air outlet thereof is opposite to the keel of the flag.

[0011] Furthermore, the pneumatic device also includes an intelligent control system, and a wind speed meter is arranged on the top of the rotating flagpole. The wind speed meter is connected to the signal input port of the intelligent control system, and the signal output port of the intelligent control system is connected to the blower.

[0012] Furthermore, the intelligent control system calculates the speed of the blower according to the wind speed measured by the anemometer and the gas flow required for the flag to flutter normally:

[0013] Where, N is the blower speed; K is the coefficient obtained by converting the absolute pressure of the gas; S is the cross-sectional area of ​​the air outlet at the flag, which is a value pre-stored in the intelligent system; V is the difference between the wind speed measured by the anemometer and the wind speed required for the flag to flutter normally; [Q] is the flow rate, pressure difference and speed relationship data table provided by the fan manufacturer.

[0014] Furthermore, it also includes a flag-raising motor, which is arranged on the top of the rotating flagpole.

[0015] Furthermore, a music and light control cabinet is also provided in the intelligent control system.

[0016] Furthermore, a powerful LED light and a high-definition camera are installed in the hemispherical seat at the top of the flagpole body.

[0017] Beneficial effects: The invention provides an intelligent flagpole that rotates with the wind direction and faces the wind. The flagpole automatically rotates and replenishes wind in the upper and middle part. The motor has low power and low wind loss, which can avoid entanglement of the flag, has strong adaptability and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a wind-rotating intelligent flagpole provided by the present invention;

[0019] Figure 2 This is a partial enlarged view of the rotating part of a smart flagpole that rotates against the wind direction provided by the present invention. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0021] Embodiment 1: The present invention provides an intelligent flagpole that rotates with the wind direction, including a flagpole base 1 and a flagpole body fixed on the flagpole base 1 , and a flag 19 is raised and lowered by a traction rope and a fixed pulley 18 .

[0022] The flagpole body in this embodiment includes a fixed flagpole 2 and a rotating flagpole 13, which are connected by two freely rotatable rotating bearings 11. When the wind speed is relatively high, the rotating flagpole 13 automatically rotates to keep the flag flying in the wind and avoid the entanglement of the traction rope. If there is a power outage, the upper rotating part of the flagpole can also pull the upper flagpole to rotate under the natural wind state through the force of the natural wind on the flag, so that the flag automatically flies in the wind.

[0023] Meanwhile, in this embodiment, a rotating device is arranged at the top of the fixed flagpole 2, and the rotating device comprises a rotating motor 7, a flagpole gear 9 and a thrust bearing 10. The rotating motor 7 is fixed to the inner wall of the top of the fixed flagpole 2 through a motor bracket 6, and the rotating shaft gear 8 of the rotating motor 7 is meshed with the flagpole gear 9. The flagpole gear 9 is fixed at the bottom center of the thrust bearing 10, and the top of the thrust bearing 10 is connected to the rotating bearing 11. An intelligent control system is also included, and a weather vane 17 is arranged at the top of the rotating flagpole 13, and the weather vane 17 is connected to the signal input port of the intelligent control system, and the signal output port of the intelligent control system is connected to the rotating motor 7.

[0024] Furthermore, the intelligent control system calculates the number of pulses sent to the rotating motor 7 according to the wind direction measured by the wind vane 17 and the current angle difference of the flag. The calculation method is as follows:

[0025]

[0026] In the formula, P is the required number of pulses; β is the angle difference, which is calculated by the pre-stored current angle value and the received direction; n is 1 for forward rotation and 0 for reverse rotation; Z2 is the number of teeth on the driven gear, which is pre-stored in the intelligent control system; Z1 is the number of teeth on the driving gear, which is pre-stored in the intelligent control system; 2500 is the number of lines of the stepper motor.

[0027] In addition, the present embodiment further includes a blower device, which includes a blower 4, an air supply slot 5 and an air outlet 14 arranged inside the fixed flagpole 2. The blower 4 is connected to the blower motor 3 and supplies air under the drive of the blower motor 3. One end of the air supply slot 5 is connected to the air outlet of the blower 4, and the other end thereof is connected to the air outlet 14. The air outlet 14 is arranged at the top of the rotating flagpole 13, and its air outlet faces the keel of the flag 19.

[0028] The pneumatic device also includes an intelligent control system, and a wind speed meter 16 is arranged on the top of the rotating flagpole 13, the wind speed meter 16 is connected to the signal input port of the intelligent control system, and the signal output port of the intelligent control system is connected to the blower 4. The intelligent control system calculates the rotation speed of the blower (4) according to the wind speed measured by the wind speed meter 16 and the gas flow required for the normal waving of the flag:

[0029] Where, N is the blower speed; K is the coefficient obtained by converting the gas absolute pressure; S is the cross-sectional area of ​​the air outlet at the flag, which is a value pre-stored in the intelligent system; V is the difference between the wind speed measured by the anemometer and the wind speed required for the flag to flutter normally; [Q] is the flow rate, pressure difference and speed relationship data table provided by the fan manufacturer.

[0030] Moreover, the present embodiment further comprises a flag raising motor 15, which is arranged at the top of the rotating flagpole 13. A music and light control cabinet is also arranged in the intelligent control system. A powerful LED light and a high-definition camera are arranged in the hemispherical seat at the top of the flagpole body.

[0031] During operation of this embodiment, when the flag is raised, the top flag-raising motor 15 raises the flag 19 to the top at a set speed, the top wind vane 17 detects the wind speed and wind direction in real time, the upper rotating flagpole 13 is adjusted in real time according to the wind direction to ensure that the flag always faces the wind, and the blower in the lower fixed flagpole 2 and the air outlet duct at the upper flag are timely replenished with air according to the wind speed to ensure that the flag is always in a fluttering state.

[0032] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A smart flagpole that rotates in the wind direction, comprising a flagpole base (1) and a flagpole body fixed on the flagpole base (1), wherein the flagpole body comprises a fixed flagpole (2) and a rotating flagpole (13), wherein the fixed flagpole (2) and the rotating flagpole (13) are connected via two freely rotatable rotating bearings (11); A rotating device is arranged at the top of the fixed flagpole (2), the rotating device comprising a rotating motor (7), a flagpole gear (9) and a thrust bearing (10), the rotating motor (7) is fixed on the inner wall of the top of the fixed flagpole (2), the rotating shaft gear (8) of the rotating motor (7) is meshed with the flagpole gear (9), the flagpole gear (9) is fixed at the bottom center of the thrust bearing (10), and the top of the thrust bearing (10) is connected to the rotating bearing (11); The invention also comprises an air blowing device, which comprises an air blower (4), an air supply groove (5) and an air outlet tube (14) arranged inside the fixed flagpole (2); one end of the air supply groove (5) is connected to the air outlet of the air blower (4), and the other end thereof is connected to the air outlet tube (14); the air outlet tube (14) is arranged at the top of the rotating flagpole (13), and the air outlet thereof faces the keel of the flag (19).

2. The smart flagpole that rotates with wind direction according to claim 1, characterized in that: It also includes an intelligent control system, and a weather vane (17) is arranged on the top of the rotating flagpole (13), the weather vane (17) is connected to the signal input port of the intelligent control system, and the signal output port of the intelligent control system is connected to the rotating motor (7).

3. The smart flagpole that rotates with wind direction according to claim 2, characterized in that: The intelligent control system calculates the number of pulses sent to the rotating motor (7) according to the wind direction measured by the wind vane (17) and the current angle difference of the flag. The calculation method is as follows: In the formula, P is the required number of pulses; β is the angle difference, which is calculated by the pre-stored current angle value and the received direction; n is 1 for forward rotation and 0 for reverse rotation; Z2 is the number of teeth on the driven gear, which is pre-stored in the intelligent control system; Z1 is the number of teeth on the driving gear, which is pre-stored in the intelligent control system; 2500 is the number of lines of the stepper motor.

4. The smart flagpole that rotates with wind direction according to claim 1, characterized in that: The blowing device also includes an intelligent control system, and a wind speed meter (16) is arranged on the top of the rotating flagpole (13), the wind speed meter (16) is connected to the signal input port of the intelligent control system, and the signal output port of the intelligent control system is connected to the blower (4).

5. The intelligent flagpole that rotates with wind direction according to claim 4 is characterized in that: The intelligent control system is based on the wind speed measured by the wind speed meter (16) and the gas flow required for the flag to flutter normally. The speed of the blower (4) is calculated as: N = K*S*V*[Q] Where, N is the blower speed; K is the coefficient obtained by converting the absolute pressure of the gas; S is the cross-sectional area of ​​the air outlet at the flag, which is a value pre-stored in the intelligent system; V is the difference between the wind speed measured by the anemometer and the wind speed required for the flag to flutter normally; [Q] is the flow rate, pressure difference and speed relationship data table provided by the fan manufacturer.

6. The intelligent flagpole that rotates with wind direction according to claim 1, characterized in that: It also comprises a flag-raising motor (15), wherein the flag-raising motor (15) is arranged on the top of the rotating flagpole (13).

7. The smart flagpole that rotates with wind direction according to claim 4, characterized in that: The intelligent control system is also provided with a music and light control cabinet.

8. The smart flagpole that rotates with wind direction according to claim 1, characterized in that: The hemispherical seat at the top of the flagpole body is equipped with powerful LED lights and high-definition cameras.

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