Rotatable wind-resistant indicating device

Abstract

The present invention discloses a rotatable wind-resistant indicating device, which comprises a column, a rotating sleeve and a sign body. The rotating sleeve is sleeved on the column and can rotate around the column as the axis. The end of the sign body is connected to the rotating sleeve through a central axis, and the sign body can rotate relative to the rotating sleeve to a horizontal state or a state parallel to the column. There are usually multiple rotating sleeves, and the multiple rotating sleeves are sequentially stacked along the column, and all the rotating sleeves can rotate independently around the column as the axis. Compared with the prior art, the present invention can rotate the rotatable indicating sign in the prior art to a horizontal state or fold it towards the column, so as to achieve the purpose of reducing the windward area, thereby reducing the thrust of the wind on the indicating sign and avoiding the sign body from being subjected to a large thrust or violent shaking.

Description

Technical Field

[0001] The present invention relates to the technical field of indicating signs, and particularly to a rotatable wind-resistant indicating device. Background Art

[0002] This application is a divisional application of the application with the application number "202211342663.2", the application date of October 31, 2022, and the invention name of "Rotatable Wind-Resistant Indicating Device".

[0003] With the development of technology, scenic area indicating signs have also changed. They have gradually evolved from traditional fixed indicating signs to indicating signs with rotation and electronic display functions. Such indicating signs are usually used in conjunction with intelligent navigation screens. When tourists use them, they only need to click on the destination on the navigation screen, and the corresponding indicating sign will display the destination clicked by the user and rotate to the corresponding direction. This kind of indicating sign is more intelligent, has a strong sense of technology, and has a good user experience, and can be used by multiple people at the same time.

[0004] The above-mentioned indicating sign with rotation and display functions integrates a liquid crystal display function and a rotation structure, so it is more complex in structure than traditional indicating signs. On the other hand, since this kind of display sign usually has multiple sign bodies, that is, there are usually multiple signs on the same column, its windward area is also larger. In order to ensure the strength of the sign, it is necessary to increase the strength of the column. Then, because the sign body integrates a display function and a rotation structure, it is best to reduce its windward area in strong wind weather. For this problem, the existing patent number "2021101304339" records a method of rotating the sign to a horizontal state to reduce the windward area of the sign, but the sign recorded in this patent does not have the ability to rotate around the column, and because the transmission rod for controlling the sign is directly inserted into the interior of the column, it is also impossible to directly install the existing transmission structure on the column to drive the sign in this patent to rotate around the column as the axis.

[0005] Obviously, the rotatable indicating sign that can be rotated to a horizontal state in the above-mentioned prior art (patent number 2021101304339) cannot be combined with the indicating sign with rotation and display functions in the prior art. Summary of the Invention

[0006] To solve the deficiencies in the prior art, the present invention provides a rotatable wind-resistant indicating device, which solves the technical problem of the too large windward area of the rotatable indicating sign in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solutions:

[0008] Rotatable wind-resistant indicating device: It includes a column, a rotating sleeve and a sign body. The rotating sleeve is sleeved on the column and can rotate around the column as the axis. The end of the sign body is connected to the rotating sleeve through a central axis, and the sign body can rotate relative to the rotating sleeve to a horizontal state or a state parallel to the column.

[0009] Preferably, for the aforementioned rotatable wind-resistant indicating device: There are multiple rotating sleeves, and the multiple rotating sleeves are sequentially stacked along the column, and all the rotating sleeves can rotate independently around the column as the axis.

[0010] Preferably, for the aforementioned rotatable wind-resistant indicating device: The rotating sleeve is provided with a rotating sleeve gear ring, and the rotating sleeve gear ring is driven by a gear one installed on a motor one, and the motor one is fixed inside the column or inside the rotating sleeve.

[0011] Preferably, for the aforementioned rotatable wind-resistant indicating device: A sleeve with an axis perpendicular to the axis of the rotating sleeve is provided on the side of the rotating sleeve, the central axis is rotatably connected to the sleeve, a sign gear one coaxially arranged and located outside the rotating sleeve is provided on the central axis, and the column is provided with an arc-shaped rack with the tooth surface facing up or down;

[0012] When the rotating sleeve rotates to make the sign gear one engage with the arc-shaped rack, the arc-shaped rack can drive the sign body to rotate around the central axis to a horizontal state;

[0013] When the rotating sleeve rotates to make the sign gear one disengage from the arc-shaped rack, the arc-shaped rack can drive the sign body to rotate around the central axis to an indicating state.

[0014] Preferably, for the aforementioned rotatable wind-resistant indicating device: The sleeve is provided with an arc-shaped groove, and the position of the sign gear one matches that of the arc-shaped groove;

[0015] When the rotating sleeve rotates to make the sign gear one engage with the arc-shaped rack, the arc-shaped rack passes through the arc-shaped groove and cooperates with the sign gear one.

[0016] Preferably, for the aforementioned rotatable wind-resistant indicating device: A positioning groove is provided on the outer surface of the central axis, and the sleeve is matched with the positioning groove through a steel ball set screw. When the sign body is in the indicating state or the horizontal state, the steel ball set screw is located deeper at the end of the positioning groove.

[0017] Preferably, for the aforementioned rotatable wind-resistant indicating device: The central axis is fixedly connected to the side of the rotating sleeve, a turbine is provided at the end of the central axis, the turbine is meshed with a worm installed on the sign body, and the worm is driven by a worm motor installed on the sign body. When the sign body is in the storage state, the sign body is parallel to the column.

[0018] Preferably, for the aforementioned rotatable wind-resistant indicating device: the column includes a rectangular section with a rectangular cross-section and a circular section with a circular cross-section. The rotating sleeve is sleeved on the circular section. The circular section is provided with a column gear ring. The axial position of the rotating sleeve relative to the column is defined by the column gear ring. The rotating sleeve is driven by a first gear in transmission with the column gear ring.

[0019] Preferably, for the aforementioned rotatable wind-resistant indicating device: the rotating sleeve includes a circular sleeve disposed inside and matching the circular section, and a rectangular sleeve disposed outside and matching the rectangular section. There are cavities located inside the four corners of the rectangular sleeve between the rectangular sleeve and the circular sleeve. The first gear is driven by a first motor disposed inside the cavity.

[0020] Preferably, for the aforementioned rotatable wind-resistant indicating device: a sleeve with an axis perpendicular to the axis of the rotating sleeve is provided on the side of the rotating sleeve; the central shaft is rotatably connected to the sleeve;

[0021] A collar with a diameter larger than that of the column is provided on the outer surface of the column. The rotating sleeve is sleeved on the collar, and inward flanges matching the ends of the collar are provided at both the upper and lower ends. The rotating sleeve gear ring is disposed on the inward flanges;

[0022] Two horizontal ring grooves 1 are provided on the side of the collar. At the middle position between the two horizontal ring grooves 1, a horizontal ring groove 2 is provided, which is staggeredly arranged with the horizontal ring grooves 1 in the circumferential direction. Both of the two horizontal ring grooves 1 are connected to the same end of the horizontal ring groove 2 through inclined ring grooves. Two guide pins are provided at the end of the central shaft;

[0023] When the sign body is in the indicating state, the two guide pins are respectively located inside the two horizontal ring grooves 1;

[0024] When the sign body is in the storage state, both of the two guide pins are located in the horizontal ring groove 2.

[0025] The beneficial effects achieved by the present invention: Compared with the prior art, the present invention can rotate the rotatable indicating sign in the prior art to a horizontal state or fold it towards the column, so as to achieve the purpose of reducing the windward area, thereby reducing the thrust of the wind on the indicating sign and avoiding the sign body from being subjected to a large thrust or violent shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall structure diagram of Embodiment 1;

[0027] Figure 2 is the partial exploded view of Embodiment 1;

[0028] Figure 3 is Figure 2 the partial enlarged view at A in

[0029] Figure 4 is the structure diagram of the sign body in the horizontal state in Embodiment 1;

[0030] Figure 5 It is the overall structure diagram of the second embodiment;

[0031] Figure 6 It is the internal structure of the second embodiment Figure 1 ;

[0032] Figure 7 It is the internal structure of the second embodiment Figure 2 ;

[0033] Figure 8 It is the structure diagram of the parallel state of the sign body and the column in the second embodiment;

[0034] Figure 9 It is the overall structure diagram of the third embodiment;

[0035] Figure 10 It is the internal structure diagram of the third embodiment;

[0036] Figure 11 It is Figure 10 The partial enlarged view at position B in;

[0037] Figure 12 It is the front view of the expanded state of the collar in the third embodiment;

[0038] The meanings of the reference numerals: 1 - column; 2 - rotating sleeve; 3 - sign body; 4 - gear one; 5 - worm; 11 - boss; 12 - arc rack; 13 - column gear ring; 21 - sleeve; 22 - arc groove; 23 - rotating sleeve gear ring; 24 - turbine; 241 - wire hole; 25 - cavity; 251 - circuit board; 252 - battery; 26 - inward flanging; 27 - steel ball set screw; 31 - central axis; 311 - positioning groove; 312 - sign gear one; 313 - limit retaining ring; 314 - sign gear two; 32 - cover; 33 - guide pin; 41 - motor one; 51 - worm motor; 6 - collar; 61 - horizontal ring groove one; 62 - inclined ring groove; 63 - horizontal ring groove two. Specific embodiments

[0039] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0040] Embodiment 1:

[0041] As Figures 1 to 4As shown: This embodiment discloses a rotatable wind-resistant indicating device, which includes a column 1, a rotating sleeve 2 and a sign body 3. The rotating sleeve 2 is sleeved on the column 1 and can rotate around the column 1 as the axis. The end of the sign body 3 is connected to the rotating sleeve 2 through a central shaft 31, and the sign body 3 can rotate relative to the rotating sleeve 2 to a horizontal state. The sign body 3 is in a vertical state during normal indication, but can also rotate 90 degrees to reach the horizontal state ( Figure 4 as shown). In the horizontal state, its windward area is greatly reduced, and the wind resistance ability can be improved.

[0042] This embodiment is particularly suitable for indicating signs with multiple sign bodies 3. Therefore, there are multiple rotating sleeves 2, and the multiple rotating sleeves 2 are sequentially stacked along the column 1, and all the rotating sleeves 2 can rotate independently around the column 1 as the axis. There are multiple bosses 11 for supporting the rotating sleeves 2 arranged outside the column 1. To ensure aesthetics, the outer diameter of the bosses 11 is usually equal to the outer diameter of the rotating sleeves 2.

[0043] Specifically: The rotating sleeve 2 is provided with a rotating sleeve gear ring 23, and the rotating sleeve gear ring 23 is driven by a gear 4 mounted on a motor 41. The motor 41 is fixed inside the column 1. A sleeve 21 with an axis perpendicular to the axis of the rotating sleeve 2 is provided on the side of the rotating sleeve 2. The central shaft 31 is rotatably connected to the sleeve 21. The central shaft 31 is provided with a sign gear 312 with a 90° arc coaxially arranged and located outside the rotating sleeve 2. The column 1 is provided with an arc-shaped rack 12 with the tooth surface facing up or down. Usually, the arc-shaped rack 12 is fixed to the boss 11, and preferably, the tooth surface is designed to face up.

[0044] The sleeve 21 is provided with an arc-shaped groove 22, and the position of the sign gear 312 matches the arc-shaped groove 22. That is to say: when the rotating sleeve 2 rotates to make the sign gear 312 mesh with the arc-shaped rack 12, the arc-shaped rack 12 passes through the arc-shaped groove 22 and cooperates with the sign gear 312.

[0045] When the sign body 3 is in normal indication work, it needs to be in the normal vertical state. Therefore, a positioning mechanism needs to be designed between the central shaft 31 and the sleeve 21. The positioning structure of this embodiment is as follows: The outer surface of the central shaft 31 is provided with a positioning groove 311, and the positioning groove 311 is distributed circumferentially along the outer surface of the central shaft 31, and its arc is usually 90 degrees, and the depth is usually deeper and the width is larger at both ends. The sleeve 21 cooperates with the positioning groove 311 through a steel ball set screw 27. When the sign body 3 is in the indication state or the horizontal state, the steel ball set screw 27 is located in the deeper part at the end of the positioning groove 311 for positioning. The steel ball set screw 27 in this embodiment belongs to the prior art, including a set screw arranged outside, a spring and a steel ball arranged inside the set screw. The spring drives the steel ball to elastically connect to the inside of the positioning groove 311.

[0046] The end of the central shaft 31 is also provided with a limit retaining ring 313 for preventing the central shaft 31 from disengaging from the sleeve 21. Usually, the connection between the limit retaining ring 313 and the central shaft 31 is detachable, for example, a common external circlip can be used. Moreover, a central hole can also be provided at the axial center position of the central shaft 31 for the cable inside the column 1 to lead to the sign body 3 to supply power to the sign body 3.

[0047] When the rotating sleeve 2 rotates to the position where the first sign gear 312 meshes with the arc-shaped rack 12, the arc-shaped rack 12 can drive the sign body 3 to rotate around the central shaft 31 to the horizontal state. When the rotating sleeve 2 rotates to the position where the first sign gear 312 disengages from the arc-shaped rack 12, the arc-shaped rack 12 can drive the sign body 3 to rotate around the central shaft 31 to the indicating state.

[0048] It can be seen from the above description that when the rotating sleeve 2 is rotating and indicating normally, the first sign gear 312 cannot be in contact with the arc-shaped rack 12. And the arc-shaped rack 12 only needs to be able to drive the first sign gear 312 to rotate by 90 degrees, so its radian does not need to be very large (depending on the diameter of the column), usually 1 / 12π to 1 / 6π degrees is sufficient. Therefore, the rotation angle of the rotating sleeve 2 relative to the column 1 can usually reach 5 / 6π to 11 / 12π. And in this embodiment, there are multiple sign bodies 3, so 360-degree dead-angle-free indication can be achieved. In actual application, multiple arc-shaped racks 12 are preferably evenly distributed along the column 1.

[0049] In this embodiment, the cable can pass through the column 1 from the bottom upwards and then pass out from the side of the column 1 above or below the corresponding rotating sleeve 2 to be connected to the sign body 3. Therefore, for the sake of beauty, a sheath is usually provided on the outer side of the column 1 to shield the first gear 4, the rotating sleeve gear ring 23, the arc-shaped rack 12 and the above-mentioned cable from view.

[0050] Generally, scenic area signs are usually divided into eight indicating directions: east, southeast, south, southwest, west, northwest, north, and northeast. In this embodiment, there are four sign bodies 3 (attached Figure 1Only three of the sign bodies are shown herein), the flipping positions (positions of the arc-shaped racks 12) of the four sign bodies 3 are evenly distributed around the column 1. Each sign body 3 can rotate under the drive of the first motor 41 and the first gear 4. By the circumference ratio of the first gear 4 and the rotating sleeve gear ring 23, the relationship between the rotation angle of the sign body 3 along the column 1 and the number of turns required for the first motor 41 to rotate can be calculated to ensure the correct indication of the sign body 3. Assume that the lowermost sign body 3 is in a horizontal state (i.e., the windproof state) when pointing due east, that is, the lowermost sign body 3 cannot perform the indication work in the due east direction. At this time, the arc-shaped rack 12 corresponding to the lowermost sign body 3 is arranged at the position of the column 1 from the northeast direction to the due east direction. When the lowermost sign body 3 rotates from the northeast direction to the due east direction, it completes a 90° self-rotation. The other three sign bodies 3 from bottom to top are in a horizontal state when pointing due south, due west, and due north respectively, and the positions of the corresponding arc-shaped racks 12 are adjusted accordingly. That is to say, when the four sign bodies 3 are in the windproof state, they are in the circumferential direction centered on the column 1, so that when the sign bodies 3 are in the display state, the four sign bodies 3 can also cover all indication directions by 360 degrees.

[0051] When a tourist operates the guide screen to rotate to the desired destination, if the selected destination has a direction of due east, due south, due west, or due north, any one of the three sign bodies 3 in the indication working state in that direction is controlled to indicate, and the tourist can be prompted by lighting the sign body. It is preferred to select the lower sign body 3 for indication to facilitate the tourist's observation. When the tourist selects destinations in multiple directions, the appropriate sign body 3 can be selected to rotate at an angle and be lit to indicate the tourist.

[0052] When the sign body 3 is in the indication state, still assume that the lowermost sign body 3 is in a horizontal state (i.e., the windproof state) when pointing due east. Then, the sign body 3 is controlled by the first motor 41 to rotate only in the clockwise direction from the east → northeast direction or in the counterclockwise direction from the northeast → east direction. That is, in the case of no special circumstances such as strong wind, the sign body 3 will not be in a horizontal state.

[0053] When encountering strong wind weather, when the wind sensor on the column detects that the wind force reaches the set value, each sign body 3 is driven by the first motor 41 and the first gear 4 to rotate to the horizontal state. After the strong wind passes, it returns to the indication state.

[0054] Embodiment 2:

[0055] Compared with Embodiment 1, the sign body 3 of this embodiment adopts a folding method to achieve the effect of reducing the windward area, specifically as Figures 5 to 8As shown in the figure: The central axis 31 is fixedly connected to the side of the rotating sleeve 2 (non-rotatable), serving as the rotation axis of the sign body 3. A turbine 24 is provided at the end of the central axis 31, and the turbine 24 is meshed and installed on the worm 5 of the sign body 3. The worm 5 is driven by a worm motor 51 installed on the sign body 3. In this way, when the worm motor 51 rotates, the rotation drive of the sign body 3 can be achieved through the torque generated by the worm and turbine. A wire hole 241 is also provided at the axis of the central axis 31 and the turbine 24 for wires to pass through. The worm motor 51 is preferably a motor with a relatively small size, and the outside is protected by a protective cover 32. Since the worm and turbine drive has self-locking property, the worm motor 51 does not need to be constantly powered on when the sign body 3 is in the normal indication state.

[0056] Since the present embodiment adopts a folding method to reduce the windward area of the sign body 3, the cross-section of the column 1 in this embodiment is preferably rectangular, which can improve the fitting degree between the sign body 3 and the column 1. Considering the installation and rotation of the rotating sleeve 2, the column 1 in this embodiment includes a rectangular section with a rectangular cross-section and a circular section with a circular cross-section. The rotating sleeve 2 is sleeved on the circular section, and a column gear ring 13 is provided on the circular section. The column gear ring 13 can play the role of restricting the rotating sleeve 2 by the boss 11 in the first embodiment. The axial position of the rotating sleeve 2 relative to the column 1 is defined by the column gear ring 13, and the rotating sleeve 2 rotates through the transmission cooperation between the first gear 4 and the column gear ring 13. When the first gear 4 rotates, the first gear 4 rotates around the column gear ring 13, and then drives the rotating sleeve 2 to rotate relative to the column 1.

[0057] As Figure 6 and Figure 7 shown in the figure: The rotating sleeve 2 includes a circular sleeve arranged inside and matching the circular section, and a rectangular sleeve arranged outside and matching the rectangular section. The circular sleeve and the rectangular sleeve are connected by vertical ribs. In this way, the rotating sleeve 2 forms a fixed profile, which is convenient for production and manufacturing.

[0058] A cavity 25 is provided between the rectangular sleeve and the circular sleeve inside the four corners of the rectangular sleeve. The first gear 4 is driven by a first motor 41 arranged inside the cavity 25. As shown in the figure, a circuit board 251 and a battery 252 can also be installed inside the cavity 25 if necessary.

[0059] When in a strong wind environment, the worm motor 51 rotates, and through the cooperation of the worm and turbine, the sign body 3 can be rotated downward. Since the cross-section of the column 1 is also rectangular, the sign body 3 after folding downward can be in a state of being attached and coincident with the column 1. It should be noted that; since the outer contour cross-section of the rotating sleeve 2 and the outer contour cross-section of the column 1 are both square, when the sign body 3 is in the storage state, the rotating sleeve 2 and the column 1 are preferably in a state where the sides are parallel, specifically as Figure 8Compared with the first embodiment, the windproof effect of this embodiment is better and the appearance is more beautiful.

[0060] In this embodiment, the cable of the sign body 3 preferably uses an electric slip ring in the prior art to connect the internal electrical signal of the column 1 with the sign body 3. The specific connection method can be configured by those skilled in the art according to actual conditions.

[0061] Embodiment three:

[0062] like Figures 9 to 11 As shown: This embodiment is similar to the first embodiment, the side of the rotating sleeve 2 is provided with a sleeve 21 whose axis is perpendicular to the axis of the rotating sleeve 2, and the central shaft 31 is rotatably connected to the sleeve 21. A collar 6 with a diameter larger than that of the column 1 is provided on the outer surface of the column 1, the rotating sleeve 2 is sleeved on the collar 6, and both the upper and lower ends are provided with inner flanges 26 that match the ends of the collar 6, and the rotating sleeve gear ring 23 is arranged on the inner edge of the inner flange 26. That is to say, the inner flange 26 is equivalent to the inner limit structure of the rotating sleeve 2, which is used to prevent the rotating sleeve 2 from moving up and down relative to the column 1, and plays the role of the boss 11 in the first embodiment.

[0063] Two horizontal annular grooves 1 61 are provided on the side of the collar 6, and a horizontal annular groove 2 63 is provided in the middle of the two horizontal annular grooves 1 61, which is staggered with the horizontal annular groove 1 61 in the circumferential direction. The two horizontal annular grooves 1 61 are connected to the same end of the horizontal annular groove 2 62 through the oblique annular groove 62, and the two ends of the oblique annular groove 62 are connected to the horizontal annular groove 1 61 and the horizontal annular groove 2 63 in a smooth transition manner. Two guide pins 33 are provided at the end of the central shaft 31, and the distribution direction of the two guide pins 33 is consistent with the width direction of the sign body 3.

[0064] The outer diameter of the guide pin 33 matches the above-mentioned annular grooves (horizontal annular groove 1 61, oblique annular groove 62 and horizontal annular groove 2 63), and can slide in the annular grooves. Furthermore, a rotatable rotating ring (such as a nylon sleeve) can be provided on the outer side of the guide pin 33 to convert sliding friction into rolling friction. When the sign body 3 is in the indicating state, the guide pins 33 are respectively located inside the two horizontal annular grooves 1 61, that is, the two guide pins 33 are distributed up and down, so as to ensure that the sign body 3 is in the display state.

[0065] When the rotating sleeve 2 rotates until the guide pin 33 enters the oblique annular groove 62, the distance between the two guide pins 33 in the vertical position becomes smaller, and the sign body 3 rotates around the central axis 31. When the two guide pins 33 successively enter the interior of the horizontal annular groove 63, the sign body 3 enters the storage state.

[0066] It should be noted that: during the process of the guide pin 33 entering the inclined ring groove 62 from the horizontal ring groove 61, it is possible (theoretically possible) that jamming may occur, that is, the two guide pins 33 are simultaneously squeezed at the junction of the horizontal ring groove 61 and the inclined ring groove 62. Therefore, to avoid this situation, as Figure 12 shown: the upper and lower intersections can be staggered in the circumferential direction, Figure 12 in which D is not zero. When the rotating sleeve 2 rotates, one of the guide pins 33 can be made to enter the inside of the inclined ring groove 62 first.

[0067] There are also the same steel ball set screws 27 and positioning grooves 311 between the sleeve 21 and the central shaft 31 as in the first embodiment, which are used to ensure the stability of the sign body 3.

[0068] In addition, in order to prevent the two guide pins 33 from entering the same inclined ring groove 62 when sliding out of the second horizontal ring groove 63, a torsion spring (not shown in the figure) for driving the central shaft 31 to rotate relative to the sleeve 21 is also provided between the sleeve 21 and the central shaft 31. Due to the existence of the torsion spring, the central shaft 31 has a certain elastic torque relative to the sleeve 21, preventing the two guide pins 33 from entering the same inclined ring groove 62 at the same time and ensuring the normal rotation of the sign body 3 when resetting from the horizontal state to the indicating state.

[0069] During use, the user inputs the target scenic spot. The system displays the target scenic spot on the sign body 3 and, under the action of the first motor 41, drives the sign body 3 to rotate around the column 1 to the corresponding indicating angle. In addition, information such as the distance, walking duration, and passage mode of the target scenic spot can also be displayed in the display area of the sign body 3, which is particularly suitable for application scenarios with many fork roads. When there is no user, multiple sign bodies 3 can also be rotated to the same plane, so that the multiple sign bodies 3 can form an entire display area for broadcasting scenic area information, thereby enhancing the sense of technology, playability, and user experience.

[0070] When the external wind force reaches a certain value, the sign body 3 can be rotated to the horizontal state (the first embodiment, the third embodiment) or the folded state (the second embodiment) to reduce the windward area of the entire indicator sign, reduce the thrust of the wind on the indicator sign, and prevent the sign body 3 from being subjected to a large thrust or violent shaking.

[0071] Compared with the prior art, the present invention can rotate the rotatable indicator sign in the prior art to the horizontal state or fold it towards the column 1 to achieve the purpose of reducing the windward area, thereby reducing the thrust of the wind on the indicator sign and preventing the sign body 3 from being subjected to a large thrust or violent shaking.

[0072] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rotatable wind-resistant indicating device, comprising a column (1), a rotating sleeve (2) and a sign body (3). The rotating sleeve (2) is sleeved on the column (1) and can rotate around the column (1) as the axis. The end of the sign body (3) is connected to the rotating sleeve (2) through a central axis (31), and the sign body (3) can rotate relative to the rotating sleeve (2) to a horizontal state or a state parallel to the column (1). There are multiple rotating sleeves (2), and the multiple rotating sleeves (2) are sequentially stacked along the column (1), and all the rotating sleeves (2) can independently rotate around the column (1) as the axis; The central axis (31) is fixedly connected to the side of the rotating sleeve (2), a turbine (24) is provided at the end of the central axis (31), the turbine (24) is meshed and installed on the worm (5) of the sign body (3), and the worm (5) is driven by a worm motor (51) installed on the sign body (3). When the sign body (3) is in the storage state, the sign body (3) is parallel to the column (1); The column (1) includes a rectangular section and a circular section. The rotating sleeve (2) is sleeved on the circular section. The circular section is provided with a column gear ring (13). The axial position of the rotating sleeve (2) relative to the column (1) is defined by the column gear ring (13), and the rotating sleeve (2) is driven by a gear one (4) and the column gear ring (13) in transmission; It is characterized in that: The rotating sleeve (2) includes a circular sleeve arranged inside and matching the circular section, and a rectangular sleeve arranged outside and matching the rectangular section. A cavity (25) is provided inside the four corners of the rectangular sleeve between the rectangular sleeve and the circular sleeve. The gear one (4) is driven by a motor one (41) arranged inside the cavity (25).

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