Wind direction sensor for polar region automatic weather station

Abstract

The utility model discloses a wind direction sensor for a polar region automatic weather station, which comprises an upper shell, a lower shell, a tail fin and a cap body, the lower shell is fixedly arranged on a base, the upper end of the lower shell is fixedly connected with the cap body, the upper end of the cap body is slidably connected with the upper shell, a pressing strip system is arranged on the upper shell, and the tail fin is slidably connected with the upper shell. The batten system is used for fixing the tail fin; according to the wind direction sensor, the two layers of umbrella-shaped structure reinforcing ribs are adopted, the wind resistance strength and the impact resistance strength of the upper shell device can be improved, the sensor is prevented from being damaged by strong wind and sand carried by the strong wind, the upper shell is connected with the tail fin through the T-shaped groove structure, damage is convenient, the tail fin can be rapidly replaced, the tail fin is designed to be in an arc shape, and the tail fin is convenient to replace. The wind direction sensor is more stable in use by utilizing the Bernoulli principle; in addition, anti-freezing coating treatment is added to the sensor, so that the freezing possibility is reduced, and the potentiometer adopts a metal ceramic potentiometer, so that the service life of the potentiometer under strong wind is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of sensors, in particular to a wind direction sensor used in a polar automatic weather station. Background Art

[0002] Wind direction sensors are mostly used for outdoor meteorological environment monitoring. They sense external wind direction information through wind direction indicator signs and transmit it to recording equipment, thereby monitoring and recording external wind direction information. Domestic wind direction sensors are mostly long-arm single-leaf wind direction sensors, while polar regions mostly use aircraft head-type wind direction and wind speed sensors. However, these two types of sensors have a common shortcoming, that is, they are prone to freezing in low temperature and high humidity environments or blizzards, and the tail fin is easily damaged under the action of strong winds, resulting in continuous abnormalities or missing wind direction data. Utility Model Content

[0003] The utility model aims to provide a wind direction sensor for a polar automatic weather station to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind direction sensor for a polar automatic weather station, comprising an upper shell, a lower shell, a tail fin and a cap body, wherein the lower shell is fixedly mounted on a base by means of limit screws, the upper end of the lower shell is fixedly connected to the cap body, the upper end of the cap body is slidably connected to the upper shell, a layering strip system is provided on the upper shell, the upper shell is slidably connected to the tail fin, and the layering strip system is used to fix the tail fin;

[0005] The outer side of the upper shell is provided with a T-shaped groove, the tail fin is composed of a tail fin plate, a T-shaped block is provided at the lower end of one side of the tail fin plate, the T-shaped block is used to cooperate with the T-shaped groove provided on the upper shell for fixed use, and two pressing plates are provided in the middle of the tail fin plate;

[0006] The pressure strip system consists of a metal strip and two symmetrically installed pressure strips. Two bosses are arranged at both ends of the metal strip. A limiting groove is arranged on the pressure strip. The limiting groove is slidably connected to the boss. One end of the pressure strip is rotatably connected to the upper shell. A shift block is fixedly installed in the middle of the metal strip. Moving the shift block is used to change the position of the metal strip, thereby changing the state of the pressure strip system.

[0007] Preferably, a metal cone is arranged at the inner center of the upper shell, and a reinforcing rib is arranged in the cavity between the metal cone and the upper shell. The upper shell is fixedly connected to the transmission shaft via a nut, and the upper surface of the metal cone is fixedly connected to the transmission shaft via a fixing nut, so that the upper shell and the transmission shaft rotate synchronously. The interior of the cap body is a smooth annular metal cylinder, and bearings are present at the top and bottom of the smooth annular metal cylinder, and the transmission shaft is connected to the potentiometer via the bearings.

[0008] Preferably, a fixing plate is provided inside the lower shell, an aviation plug is fixedly connected in the middle of the fixing plate, a control mainboard is provided at the lower end of the potentiometer, the control mainboard is fixedly connected to the lower shell, and the control mainboard and the aviation plug are connected via a cable.

[0009] Preferably, the outer surface of the tail fin is in the shape of an arc.

[0010] Preferably, the upper shell, tail fin and cap body are coated with an antifreeze coating.

[0011] Preferably, the potentiometer is a metal ceramic potentiometer to increase the service life of the potentiometer under strong winds.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the upper shell of the utility model adopts a T-slot structure to connect the tail fin, which is convenient for quick replacement of the tail fin if damaged, and the shape of the tail fin is designed to be an arc shape, and the Bernoulli principle is used to make the wind direction sensor more stable during use; the upper shell adopts two layers of umbrella-shaped structure reinforcement ribs to improve the wind resistance and impact resistance of the device to prevent strong winds and the sand and stones they carry from damaging the sensor. In addition, adding an antifreeze coating to the sensor also reduces the possibility of freezing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 for Figure 2 A local enlarged view of point B;

[0016] Figure 4 Schematic diagram of the tail fin structure;

[0017] Figure 5 for Figure 4 A local enlarged view of point A;

[0018] Figure 6 This is a bottom view of the tail fin;

[0019] Figure 7 is a top view of the upper shell;

[0020] Figure 8 This is a schematic diagram of the retracted state of the layering system;

[0021] Fig. 9 Schematic diagram of the layering system in the extended state.

[0022] Among them: 1. Base, 2. Upper shell, 21. Metal round table, 22. Drive shaft, 23. Fixing nut, 24. Nut, 25. Reinforcement rib, 26. T-slot, 3. Lower shell, 31. Fixing plate, 32. Aviation plug, 33. Cable, 34. Control main board, 35. Potentiometer, 4. Limit screw, 5. Pressure strip system, 51. Metal strip, 52. Dial block, 53. Pressure strip, 54. Limit slot, 55. Boss, 6. Tail fin, 61. Tail fin plate, 62. T-block, 63. Pressure plate, 7. Cap body. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-9 , in order to solve the problem that the wind direction sensor is easily damaged and the rotation freezes under strong wind, the utility model provides a technical solution: a wind direction sensor for a polar automatic weather station, comprising an upper shell 2, a lower shell 3, a tail fin 6 and a cap body 7, the lower shell 3 is fixedly mounted on the base 1 by a limit screw 4, the upper end of the lower shell 3 is fixedly connected to the cap body 7, the upper end of the cap body 7 is slidably connected to the upper shell 2, a layering system 5 is provided on the upper shell 2, the tail fin 6 is slidably connected to the upper shell 2, and the layering system 5 is used to fix the tail fin 6;

[0025] A T-shaped groove 26 is provided on the outer side of the upper shell 2, and the tail fin 6 is composed of a tail fin plate 61. A T-shaped block 62 is provided at the lower end of one side of the tail fin plate 61. The T-shaped block 62 is used to cooperate with the T-shaped groove 26 provided on the upper shell 2 for fixed use. Two pressing plates 63 are provided in the middle of the tail fin plate 61.

[0026] The pressure strip system 5 is composed of a metal strip 51 and two symmetrically installed pressure strips 53. Two bosses 55 are provided at both ends of the metal strip 51. A limiting groove 54 is provided on the pressure strip 53. The limiting groove 54 is slidably connected to the boss 55. One end of the pressure strip 53 is rotatably connected to the upper shell 2. A shift block 52 is fixedly installed in the middle of the metal strip 51. Moving the shift block 52 is used to change the position of the metal strip 51, thereby changing the state of the pressure strip system 5.

[0027] When in use, first install the T-shaped block 62 into the T-shaped groove 26 until the lower surface of the pressure plate 63 set on the tail fin 6 is completely in contact with the upper surface of the upper shell 2, and then move the position of the shift block 52, the shift block 52 drives the metal bar 51 to move, the metal bar 51 drives the boss 55 to move, and the boss 55 drives the limiting groove 54 on the pressure strip 53 to rotate and slide within the moving range of the boss 55, one end of the pressure strip 53 starts to rotate around the position where it is rotated and connected to the upper shell 2, and the other end of the pressure strip 53 starts to make a circular motion with the rotating position as the center, and when the pressure strip 53 covers the pressure plate 63, stop moving the shift block 52, and the tail fin 6 is stably connected to the upper shell 2 under the action of the pressure strip system 5. When the tail fin 6 needs to be replaced, the shift block 52 is moved in the opposite direction, the shift block 52 drives the metal strip 51 to move in the opposite direction, the metal strip 51 drives the boss 55 to move in the opposite direction, the boss 55 drives the limit groove 54 on the pressure strip 53 to rotate and slide in the opposite direction within the moving range of the boss 55, one end of the pressure strip 53 starts to rotate in the opposite direction around the position where it is connected to the upper shell 2, and the other end of the pressure strip 53 starts to make a reverse circular motion with the rotation connection position as the center of the circle. When the pressure strip 53 leaves the range of the pressure plate 63, the shift block 52 is stopped, the tail fin 6 is removed, and a new tail fin 6 is replaced. The lower surface of the pressure plate 63 is horizontal, and the pressure plate 63 gradually becomes thicker as it moves away from the pressure strip system 5. The pressure strip 53 is made of metal and has elasticity. The pressure strip 53 can gradually become tighter on the pressure plate 63 as it moves inward. The upper shell 2, the tail fin 6 and the cap body 7 are coated with an antifreeze coating, which can play an antifreeze role in the cold polar climate.

[0028] A metal cone 21 is arranged at the inner center of the upper shell 2, and a reinforcing rib 25 is arranged in the cavity between the metal cone 21 and the upper shell 2. The upper shell 2 is fixedly connected to the transmission shaft 22 by a nut 24, and the upper surface of the metal cone 21 is fixedly connected to the transmission shaft 22 by a fixing nut 23, so that the upper shell 2 and the transmission shaft 22 rotate synchronously. The interior of the cap body 7 is a smooth annular metal cylinder, and bearings are provided at the upper and bottom of the smooth annular metal cylinder, and the transmission shaft 22 is connected to the potentiometer 35 through the bearings.

[0029] The design of the reinforcing rib 25 can ensure that the upper shell 2 is protected when sand and stones carried by strong winds hit the upper shell 2. The tail fin 6 begins to rotate under the action of the wind. The shape of the outer surface of the tail fin plate 61 is an arc. By using the Bernoulli principle, the tail fin plate 61 can be more stable when indicating the wind direction. The rotation of the tail fin 6 drives the upper shell 2 to rotate, the rotation of the upper shell 2 drives the nut 24 to rotate, the rotation of the nut 24 drives the transmission shaft 22 to rotate, and the rotation of the transmission shaft 22 drives the potentiometer 35 to rotate. The potentiometer 35 is communicated with the control main board 34, and the specific direction of the wind direction is calculated according to the size of different voltages. The potentiometer 35 adopts a metal ceramic potentiometer to enhance the service life of the potentiometer 35 under strong winds.

[0030] A fixing plate 31 is provided inside the lower shell 3, and an aviation plug 32 is fixedly connected in the middle of the fixing plate 31. A control mainboard 34 is provided at the lower end of the potentiometer 35, and the control mainboard 34 is fixedly connected to the lower shell 3. The control mainboard 34 and the aviation plug 32 are connected via a cable 33.

[0031] The fixing plate 31 is used to fix the position of the aviation plug 32. The aviation plug 32 is connected to the control main board 34 via a cable 33, and the cable 33 is used to transmit electrical signals.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind direction sensor for a polar automatic weather station, comprising an upper shell (2), a lower shell (3), a tail fin (6) and a cap (7), characterized in that: The lower shell (3) is fixedly mounted on the base (1) by means of a limit screw (4); the upper end of the lower shell (3) is fixedly connected to the cap body (7); the upper end of the cap body (7) is slidably connected to the upper shell (2); a layering strip system (5) is provided on the upper shell (2); the upper shell (2) is slidably connected to the tail fin (6); the layering strip system (5) is used to fix the tail fin (6); The upper shell (2) is provided with a T-shaped groove (26) on the outer side surface, the tail fin (6) is composed of a tail fin plate (61), a T-shaped block (62) is provided at the lower end of one side of the tail fin plate (61), the T-shaped block (62) is used to cooperate with the T-shaped groove (26) provided on the upper shell (2) for fixed use, and two pressing plates (63) are provided in the middle of the tail fin plate (61); The pressure strip system (5) is composed of a metal strip (51) and two symmetrically mounted pressure strips (53); two bosses (55) are arranged at both ends of the metal strip (51); a limiting groove (54) is arranged on the pressure strip (53); the limiting groove (54) is slidably connected to the boss (55); one end of the pressure strip (53) is rotatably connected to the upper shell (2); a shifting block (52) is fixedly mounted in the middle of the metal strip (51); the shifting block (52) is moved to change the position of the metal strip (51), thereby changing the state of the pressure strip system (5).

2. A wind direction sensor for a polar automatic weather station according to claim 1, characterized in that: A metal truncated cone (21) is arranged at the center of the upper shell (2); a reinforcing rib (25) is arranged in the cavity between the metal truncated cone (21) and the upper shell (2); the upper shell (2) is fixedly connected to the transmission shaft (22) via a nut (24); the upper surface of the metal truncated cone (21) is fixedly connected to the transmission shaft (22) via a fixing nut (23), so that the upper shell (2) and the transmission shaft (22) rotate synchronously; the interior of the cap body (7) is a smooth annular metal column; bearings are provided at the top and bottom of the smooth annular metal column; the transmission shaft (22) is connected to the potentiometer (35) via the bearings.

3. A wind direction sensor for a polar automatic weather station according to claim 2, characterized in that: A fixing plate (31) is arranged inside the lower housing (3), an aviation plug (32) is fixedly connected to the middle of the fixing plate (31), a control mainboard (34) is arranged at the lower end of the potentiometer (35), the control mainboard (34) is fixedly connected to the lower housing (3), and the control mainboard (34) and the aviation plug (32) are connected via a cable (33).

4. The wind direction sensor for a polar automatic weather station according to claim 1, characterized in that: The outer surface of the tail fin plate (61) is in the shape of an arc.

5. The wind direction sensor for polar automatic weather station according to claim 1, characterized in that: The upper shell (2), the tail fin (6) and the cap body (7) are coated with an antifreeze coating.

6. The wind direction sensor for polar automatic weather station according to claim 2, characterized in that: The potentiometer (35) is a metal ceramic potentiometer, so as to increase the service life of the potentiometer (35) under strong winds.

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