A road reflective warning sign

Abstract

The present application provides a road reflective warning sign, comprising a light-gathering rain shield, a mounting plate, a reflective film, and a support rod. The bottom of the support rod is fixed to the road surface; the mounting plate is disposed on the top of the support rod; the reflective film is disposed on the surface of the mounting plate; the light-gathering rain shield is disposed on the mounting plates on the upper and lower sides of the reflective film, and the light-gathering rain shield comprises two upper and lower light-gathering rain shield plates, the light-gathering rain shield plates being arc-shaped, and the concave surfaces of the light-gathering rain shield plates facing the location of the reflective film. The road reflective warning sign provided by the present application can cope with rain or low-visibility weather conditions, maintain a good feedback information function, and ensure that drivers can normally obtain the information on the road reflective warning sign.

Description

Technical Field

[0001] The present invention relates to the field of road facilities, and in particular to a road reflective warning sign. Background Art

[0002] Reflective road warning signs are often installed on roads to effectively enhance human recognition, allowing drivers to see their target more clearly and raise awareness, thereby preventing accidents, reducing casualties, and minimizing economic losses. Traditional reflective road warning signs typically include a reflective film. This passive luminescence method, whereby vehicle lights illuminate the film, causing it to reflect light, allows the signs to function as warning signs at night. However, in certain weather conditions (such as fog and rain), the intensity of light reflected from the film can be severely affected. (Fog can obstruct light transmission, dimming the light reflected by the film and the intensity of the light reflected by the film. Rainy days, however, can severely reduce the reflectivity of the film, potentially preventing drivers from properly understanding the information on the road warning signs.) Summary of the Invention

[0003] The purpose of the present invention is to provide a road reflective warning sign to solve the technical problem that traditional road reflective warning signs will seriously affect the intensity of light reflected by the reflective film inside the road reflective warning sign in certain special weather conditions (such as rain or heavy fog), and may even cause drivers to be unable to normally obtain the information on the road reflective warning sign.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a road reflective warning sign, the road reflective warning sign comprising:

[0005] A support rod, the bottom of which is fixed to the road surface;

[0006] A mounting plate, the mounting plate being arranged on the top of the support rod;

[0007] A reflective film, the reflective film being arranged on the surface of the mounting plate;

[0008] The light-gathering rain shield is arranged on the mounting plates on the upper and lower sides of the reflective film. The light-gathering rain shield comprises two upper and lower light-gathering rain shield plates. The light-gathering rain shield plates are arc-shaped, and the concave surfaces of the light-gathering rain shield plates face the position of the reflective film.

[0009] In one embodiment, the road reflective warning sign further includes an automatic cleaning unit, which is used to automatically clean the reflective film.

[0010] In one embodiment, the automatic cleaning unit comprises:

[0011] A water storage cavity, the water storage cavity is surrounded by the upper side light-collecting rain shield plate of the light-collecting rain shield portion and the mounting plate, and a water outlet is provided at the bottom of the water storage cavity;

[0012] A wedge-shaped blocking block is provided in the water storage cavity and is used to block the water outlet;

[0013] A float, the float is located in the water storage chamber, and the float is connected to the wedge-shaped block via a first rope;

[0014] A guide rod, the guide rod being arranged between the two light-collecting rain shields, the guide rod being parallel to the surface of the reflective film;

[0015] A cleaning mechanism, wherein the cleaning mechanism is slidably sleeved on the guide rod, the cleaning mechanism is connected to the float via a second rope, and the cleaning mechanism is used to clean the reflective film;

[0016] An elastic member, one end of which is fixed to the light-collecting rain shield, and the other end of which is connected to the cleaning mechanism.

[0017] In one embodiment, the elastic member is a spring, and the spring is sleeved outside the guide rod.

[0018] In one embodiment, the width of the light-collecting rain shielding portion is greater than the width of the reflective film, and the guide rods are located on the light-collecting rain shielding portion on the left and right sides of the reflective film.

[0019] In one embodiment, the automatic cleaning portion further includes a plurality of guide wheels, wherein the guide wheels are arranged on the light-collecting rain shield plate on the upper side of the light-collecting rain shield portion, and the second rope is slidably fitted on the guide wheels.

[0020] In one embodiment, the cleaning mechanism includes a cleaning rod and a flexible cleaning layer provided on the cleaning rod near the reflective film. The cleaning rod is slidably provided on the guide rod and is connected to the second rope and the elastic member.

[0021] In one embodiment, the road reflective warning sign further includes an automatic angle adjustment portion, wherein the automatic angle adjustment portion is used to adjust the tilt angle of the mounting plate;

[0022] The automatic angle adjustment part includes a connecting rod and a balancing ball. The middle part of the connecting rod is hinged on the support rod. One end of the connecting rod is connected to the mounting plate, and the connection point between the connecting rod and the mounting plate is located in the upper half of the mounting plate; the other end of the connecting rod is connected to the balancing ball; the connecting rod is in a state of tilting downward from the position of the balancing ball to the position of the mounting plate.

[0023] In one embodiment, the support rod and the mounting plate are connected by fasteners.

[0024] One or more of the above technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0025] The reflective road warning sign provided by the present invention utilizes a mounting plate mounted on a support rod and a reflective film mounted on the mounting plate to achieve a reflective warning function. Furthermore, by providing light-collecting rain shields on the upper and lower sides of the reflective film, and utilizing the light-collecting function of two curved rain shields within the rain shield (light emitted by vehicles strikes the concave surfaces of the rain shields and is reflected onto the reflective film), the road reflective warning sign's ability to collect light is enhanced, thereby increasing the intensity of light incident on the reflective film and, consequently, the intensity of the reflected light from the film. This allows drivers to still receive the reflected light from the film and understand the contents of the metal sign even in foggy conditions (such as smog and other conditions with low visibility). Furthermore, because the rain-blocking effect of the rain shields prevents falling rain from reaching the reflective film, ensuring the reflectivity of the film and, consequently, the intensity of the reflected light from the film. Therefore, the road reflective warning signs in this application can cope with rain or weather conditions with low visibility (such as heavy fog, haze, etc.), maintain good feedback information functions, and ensure that drivers can normally obtain the information on the road reflective warning signs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A schematic diagram of the structure of a road reflective warning sign provided by an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0029] Figure 3 for Figure 1 Right view;

[0030] Figure 4 for Figure 1 A schematic diagram of the structure of the automatic cleaning unit after completing the cleaning action;

[0031] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0032] Figure 6 A schematic diagram of the focusing principle of a focusing rain shield provided by an embodiment of the present invention;

[0033] Figure 7 This is a schematic structural diagram of the automatic angle adjustment unit provided in an embodiment of the present invention.

[0034] The reference numerals are as follows:

[0035] 1. Support rod; 2. Mounting plate; 3. Reflective film; 4. Focusing rain shield; 5. Automatic cleaning unit; 6. Automatic angle adjustment unit; 41. Focusing rain shield; 51. Water storage chamber; 52. Wedge-shaped block; 53. Float; 54. Guide rod; 55. Cleaning mechanism; 56. Elastic member; 57. First rope; 58. Second rope; 59. Guide wheel; 61. Connecting rod; 62. Balance ball; 511. Water outlet. DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0039] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] See also Figure 1 and Figure 6 The embodiment of the present application provides a road reflective warning sign, including a light-gathering rain shield 4, a mounting plate 2, a reflective film 3 (a traffic sign pattern is provided on the reflective film 3, and the driver receives the information on the sign through the light reflected by the reflective film 3), and a support rod 1. Among them, the bottom of the support rod 1 is fixed to the road surface; the mounting plate 2 is arranged on the top of the support rod 1 (the support rod 1 and the mounting plate 2 can be connected by fasteners to facilitate the disassembly and assembly between the support rod 1 and the mounting plate 2); the reflective film 3 is arranged on the surface of the mounting plate 2, and the specific shape and content of the reflective film 3 can be changed according to the use requirements, and the shape can be rectangular, circular, etc.; the light-gathering rain shield 4 is arranged on the mounting plate 2 on the upper and lower sides of the reflective film 3. The light-gathering rain shield 4 includes two upper and lower light-gathering rain shields 41. The light-gathering rain shield 41 is arc-shaped, and the concave surface of the light-gathering rain shield 41 faces the position of the reflective film 3. In order to improve the light-gathering effect of the light-gathering rain shield 41.

[0041] Optionally, the concave surface of the light-collecting rain shield 41 can be set to a smooth mirror surface with better reflective effect, so that the light-collecting rain shield 41 can reflect more light onto the reflective film 3.

[0042] The road reflective warning sign provided in this embodiment realizes the reflective warning function by arranging a mounting plate 2 on a support rod 1 and a reflective film 3 on the mounting plate 2. In addition, a light-collecting rain shield 4 is arranged on the upper and lower sides of the reflective film 3, and the light-collecting function of the two arc-shaped light-collecting rain shields 41 in the light-collecting rain shield 4 is utilized (the light emitted by the car hits the concave surface of the light-collecting rain shield 41 and is reflected onto the reflective film 3). Figure 6As described above, the ability of the road reflective warning sign to collect light is improved, thereby increasing the intensity of light incident on the reflective film 3 and, in turn, the intensity of the light reflected from the reflective film 3. This allows drivers to receive the light reflected from the reflective film 3 and understand the contents of the metal sign even in foggy (or other conditions with low visibility, such as haze). Furthermore, because the light-collecting rain shield 41 provides a rain-blocking effect, falling rain is less likely to fall on the reflective film 3, ensuring the reflectivity of the reflective film 3 and, in turn, the intensity of the light reflected from the reflective film 3. Therefore, the road reflective warning sign of this application can cope with rain or low visibility (such as foggy, haze, etc.) weather conditions, maintaining a good feedback function and ensuring that drivers can properly understand the information on the road reflective warning sign.

[0043] Since the sign is set on the road, it is easy for vehicles to stir up dust when driving, and the flying dust is easy to adhere to the reflective film 3 of the sign, thereby seriously affecting the reflectivity of the reflective film 3 and affecting the normal use of the road reflective warning sign.

[0044] To this end, in one embodiment, the road reflective warning sign further includes an automatic cleaning unit 5, which is used to automatically clean the reflective film 3. By providing the automatic cleaning unit 5, the reflective film 3 is automatically cleaned, thereby preventing dust accumulation on the surface of the reflective film 3, which may cause the road reflective warning sign to malfunction.

[0045] In one embodiment, the automatic cleaning portion 5 includes an elastic member 56 , a wedge-shaped block 52 , a float 53 , a guide rod 54 , a cleaning mechanism 55 , and a water storage chamber 51 . Among them, the water storage chamber 51 is surrounded by the upper side of the focusing rain shield plate 41 of the focusing rain shield part 4 and the mounting plate 2, and a water outlet 511 is provided at the bottom of the water storage chamber 51; a wedge-shaped block 52 is arranged in the water storage chamber 51, and the wedge-shaped block 52 is used to block the water outlet 511; the float 53 is located in the water storage chamber 51, and the float 53 and the wedge-shaped block 52 are connected by a first rope 57; the guide rod 54 is arranged between the two focusing rain shields 41, and the guide rod 54 is parallel to the surface of the reflective film 3; the cleaning structure is slidably sleeved on the guide rod 54, and the cleaning mechanism 55 is connected to the float 53 by a second rope 58, and the cleaning mechanism 55 is used to clean the reflective film 3; one end of the elastic member 56 is fixed on the focusing rain shield 41, and the other end of the elastic member 56 is connected to the cleaning mechanism 55. Optionally, the elastic member 56 can be a spring, and the spring is sleeved outside the guide rod 54.

[0046] In the initial state, the cleaning mechanism 55 is located at the bottom (eg Figure 4-5When it rains, the focusing rain shield 41 on the upper side of the focusing rain shield portion 4 not only shields the reflective film 3 below from rain to ensure that the reflective film 3 can be used normally on rainy days, but also collects rainwater into the water tank (the wedge-shaped block 52 blocks the water outlet 511). When the water level in the water tank continues to rise, the float 53 rises with the rising water level under the buoyancy of the water. Since the float 53 is connected to the cleaning mechanism 55 through the second rope 58, the cleaning mechanism overcomes the elastic force of the elastic member 56 and slides upward along the guide rod 54 under the pulling force of the float 53, and preliminarily wipes the reflective film 3 during the upward sliding process (as shown in FIG. Figure 1-2 The state shown). Until the rainwater level in the water tank rises to the point where the float 53 uses the first rope 57 to pull the wedge-shaped block 52 upward, the wedge-shaped block 52 is pulled out from the water outlet 511, causing the rainwater in the water storage chamber 51 to be discharged downward from the water outlet 511. The discharged rainwater flows toward the reflective film 3 to quickly flush the reflective film 3. As the rainwater in the water storage chamber 51 flows out, the water level drops, causing the float 53 to drop and release the second rope 58, causing the cleaning mechanism 55 to move downward rapidly along the guide rod 54 under the elastic force of the elastic member 56, and cooperate with the rainwater rushing toward the reflective film 3 to quickly wipe the reflective film 3 for the second time (wet cleaning), and use the rainwater and the cleaning mechanism 55 to clean the reflective film 3 together to improve the cleaning effect. Until the rainwater in the water storage chamber 51 is basically discharged, the cleaning mechanism 55 at this time just moves to the initial position (as shown). Figure 4-5 As shown in the state, the wedge-shaped block 52 is wedge-shaped, so it will automatically slide along the water tank to the water outlet 511 under the action of its own gravity, thereby blocking the water outlet 511 again, so that the water tank can store water again and repeat the above-mentioned cleaning action.

[0047] The automatic cleaning unit 5 of this embodiment utilizes a water storage chamber 51 formed by the light-collecting rain shield 41 and the mounting plate 2. This not only shields the reflective sheeting 3 below from rain, ensuring normal use of the reflective sheeting 3 on rainy days, but also collects rainwater for two subsequent cleanings of the reflective sheeting 3, significantly improving the cleaning effect of the reflective sheeting 3. Because the secondary wiping process only occurs when the water level in the water storage chamber 51 reaches a limit, and the duration of the secondary wiping process is relatively short, the reflective sheeting 3 remains dry during other periods, ensuring normal use of the reflective sheeting 3 without conflicting with the rain-shielding purpose of the light-collecting rain shield 4. (Instead of the original situation where the surface of the reflective sheeting 3 is constantly soaked during rainy days, which affects its reflective effect, the reflective sheeting 3 of this embodiment remains dry for the majority of the time on rainy days, maintaining its reflective effect while also cleaning the reflective sheeting 3.)

[0048] like Figure 3As shown, in one embodiment, the width of the light-collecting rain shield 4 is greater than the width of the reflective film 3, and the guide rods 54 are located on the light-collecting rain shield 4 on the left and right sides of the reflective film 3. By arranging the guide rods 54 on the left and right sides of the reflective film 3, the light reflected by the reflective film 3 is not easily blocked by the guide rods 54, and the guide rods 54 are also not likely to block the driver's line of sight.

[0049] In one embodiment, the automatic cleaning unit 5 further includes a plurality of guide wheels 59, which are provided on the light-collecting rain shield 41 on the upper side of the light-collecting rain shield 4. The second rope 58 is slidably engaged with the guide wheels 59. The provision of the guide wheels 59 reduces friction between the second rope and the light-collecting rain shield 41.

[0050] In one embodiment, the cleaning mechanism 55 includes a cleaning rod and a flexible cleaning layer disposed on the cleaning rod near the reflective film 3 . The cleaning rod is slidably disposed on the guide rod 54 and is connected to the second rope 58 and the elastic member 56 .

[0051] In order to enable the road reflective warning sign to automatically adjust its angle in windy and rainy weather to reduce the bending stress on the support rod 1 and maintain the rain-shielding effect of the focusing rain shield 41. In one embodiment, the road reflective warning sign also includes an automatic angle adjustment unit 6, which is used to adjust the tilt angle of the mounting plate 2; the automatic angle adjustment unit 6 includes a connecting rod 61 and a balancing ball 62, the middle part of the connecting rod 61 is hinged to the support rod 1, one end of the connecting rod 61 is connected to the mounting plate 2, and the connection point between the connecting rod 61 and the mounting plate 2 is located in the upper half of the mounting plate 2; the other end of the connecting rod 61 is connected to the balancing ball 62; the connecting rod 61 is in a state of tilting downward from the position of the balancing ball 62 to the position of the mounting plate 2.

[0052] like Figure 7As shown, when the wind blows from left to right, since the mounting plate 2 is located on the right side of the support rod 1, under the action of wind force, the mounting plate 2 will give the support rod 1 a clockwise bending moment, and the balancing ball 62 will give the support rod 1 a counterclockwise bending moment for balance. And since the connection point between the connecting rod 61 and the mounting plate 2 is located in the upper half of the mounting plate 2, when the wind blows from left to right, the mounting plate 2 will rotate counterclockwise around the hinge point of the connecting rod 61 and the support rod 1 by a certain angle, and this angle will increase as the wind force increases (the greater the wind force, the greater the clockwise bending moment the mounting plate 2 will give to the support rod 1). Since the balancing ball 62 is connected to the mounting plate 2 through the connecting rod 61, the balancing ball 62 will also rotate counterclockwise around the hinge point of the connecting rod 61 and the support rod 1 by the same angle. After the balancing ball 62 rotates counterclockwise, the counterclockwise bending moment generated by the gravity of the balancing ball 62 becomes larger as the force arm (the projected distance between the balancing ball 62 and the hinge point between the connecting rod 61 and the support rod 1) becomes longer. Therefore, the counterclockwise torque given to the support rod 1 by the balancing ball 62 will increase as the clockwise torque given to the support rod 1 by the mounting plate 2 increases (increases as the wind force increases), and the two check and balance each other. Even in windy weather, the automatic angle adjustment unit 6 can significantly reduce the bending moment on the support rod 1, thereby preventing the support rod 1 from being broken in windy weather.

[0053] When the wind blows from right to left, the mounting plate 2 rotates clockwise around the hinge point between the connecting rod 61 and the support rod 1 by a certain angle, and this angle increases with the wind force (the wind force exerts a counterclockwise torque on the support rod 1, and the stronger the wind, the greater the torque). Since the rainwater falls from right to left under the action of the wind, the upper light-collecting rain shield 41 also rotates clockwise by a certain angle, thereby increasing the effective rain-blocking area of the light-collecting rain shield 41 and ensuring its rain-blocking effect.

[0054] Moreover, since the balancing ball 62 will also rotate clockwise around the hinge point of the connecting rod 61 and the support rod 1 by the same angle, the moment arm of the gravity of the balancing ball 62 becomes shorter, thereby making the counterclockwise torque exerted by the balancing ball 62 on the support column smaller, and the degree of reduction increases as the wind force increases. Therefore, the balancing ball 62 can balance the torque generated by the wind under the automatic adjustment of the angle automatic adjustment part 6, reduce the bending moment exerted on the support rod 1, and prevent the support rod 1 from being broken in windy weather.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A road reflective warning sign, characterized in that: The road reflective warning sign includes: A support rod, the bottom of which is fixed to the road surface; A mounting plate, the mounting plate being arranged on the top of the support rod; A reflective film, the reflective film being arranged on the surface of the mounting plate; A light-gathering rain shielding portion is provided on the mounting plates on the upper and lower sides of the reflective film, and comprises two upper and lower light-gathering rain shielding plates, each of which is arc-shaped, and the concave surface of each light-gathering rain shielding plate faces the position of the reflective film; The road reflective warning sign also includes an automatic angle adjustment unit, which is used to adjust the tilt angle of the mounting plate; The automatic angle adjustment portion includes a connecting rod and a balancing ball. The middle portion of the connecting rod is hinged to the support rod. One end of the connecting rod is connected to the mounting plate, and the connection point between the connecting rod and the mounting plate is located in the upper half of the mounting plate. The other end of the connecting rod is connected to the balancing ball. The connecting rod is in a state of tilting downward from the position of the balancing ball to the position of the mounting plate. The road reflective warning sign also includes an automatic cleaning unit, which is used to automatically clean the reflective film; the automatic cleaning unit includes: A water storage cavity, the water storage cavity is surrounded by the upper side light-collecting rain shield plate of the light-collecting rain shield portion and the mounting plate, and a water outlet is provided at the bottom of the water storage cavity; A wedge-shaped blocking block is provided in the water storage cavity and is used to block the water outlet; A float, the float is located in the water storage chamber, and the float is connected to the wedge-shaped block via a first rope; A guide rod, the guide rod being arranged between the two light-collecting rain shields, the guide rod being parallel to the surface of the reflective film; A cleaning mechanism, the cleaning mechanism being slidably sleeved on the guide rod and connected to the float via a second rope, and the cleaning mechanism being used to clean the reflective film; An elastic member, one end of which is fixed to the light-collecting rain shield at the lower side, and the other end of which is connected to the cleaning mechanism.

2. The reflective road warning sign according to claim 1, characterized in that: The elastic member is a spring, and the spring is sleeved on the outside of the guide rod.

3. The reflective road warning sign according to claim 1, characterized in that: The width of the light-collecting rain shielding portion is greater than the width of the reflective film, and the guide rods are located on the light-collecting rain shielding portion on the left and right sides of the reflective film.

4. The reflective road warning sign according to claim 1, characterized in that: The automatic cleaning part further comprises a plurality of guide wheels, wherein the guide wheels are arranged on the light-collecting rain shield plate on the upper side of the light-collecting rain shield part, and the second rope is slidably fitted on the guide wheels.

5. The reflective road warning sign according to claim 1, characterized in that: The cleaning mechanism includes a cleaning rod and a flexible cleaning layer arranged on the cleaning rod near the reflective film. The cleaning rod is slidably arranged on the guide rod and is connected to the second rope and the elastic member.

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