Warning device in tunnel of expressway

Abstract

The utility model relates to an in-tunnel warning device for a highway, and the device comprises a vertical rod which is internally provided with a vertical channel; the warning part comprises a connecting rod, a rotating part and a warning belt; one end of the connecting rod is connected with the rotating part, the rotating part is rotationally connected to the vertical rod, and transmission teeth are arranged on the rotating part; one side of the warning belt is connected to the surface of the connecting rod, and the other side of the warning belt is connected to the surface of the vertical rod; the driving rod is movably mounted in the vertical channel in the vertical direction of the vertical rod; the driving rod is provided with driving teeth, and the driving teeth are meshed with the transmission teeth; and when the driving rod vertically moves, the rotating part is driven to rotate, so that the warning belt is driven to unfold or fold. According to the utility model, the effects of high identification degree and small influence on normal driving under the condition that an accident does not occur are taken into consideration.

Description

Technical Field

[0001] This application relates to the technical field of tunnel warning, and particularly to a warning device inside a tunnel on an expressway. Background Art

[0002] Expressways usually set up tunnels to cross terrain. Tunnels on expressways are different from conventional road tunnels. Although the speed limit is generally 100 km / h, the speed is still very fast. The light inside the tunnel is poor and accidents are prone to occur. Especially at the tunnel exit, the sudden change from dark to bright light will cause a sharp drop in visual sensitivity, resulting in a 2 - 3 - second visual blur period. At high speeds, drivers are difficult to see the road surface clearly, making accidents more likely.

[0003] After an accident occurs, relying solely on the triangular warning stand placed by the vehicle in front, its warning effect is not obvious. Especially when the accident occurs at the tunnel exit, drivers are more likely to ignore the triangular warning stand during the visual blur period, causing secondary accidents. For this reason, the utility model patent with the publication number CN209538071U provides a safety warning device at the tunnel exit, which warns by rotating a rotating warning stand to switch between a speed limit sign and a warning triangle sign.

[0004] However, it switches between the speed limit sign in the normal state and the warning triangle sign in the accident state, that is, only the identification is switched, and the shape itself does not change, so its recognition rate is not high; when the light in the tunnel is poor, especially during the visual blur period at the tunnel exit, drivers are likely to ignore different identifications, thus reducing the warning effect. Especially the space position inside the tunnel is relatively tight, and the size of the rotating warning stand should not be too large. If the size of the rotating warning stand is too large, it will interfere with the normal driving inside the tunnel when it rotates to the speed limit sign state without an accident, and a smaller rotating warning stand is more likely to be ignored by drivers.

[0005] In summary, it is necessary to provide a warning device that takes into account high recognition rate and has little impact on normal driving in the state without an accident. Utility Model Content

[0006] Based on this, it is necessary to provide a warning device inside a tunnel on an expressway, and its specific technical solution is as follows.

[0007] A warning device inside a tunnel on an expressway includes:

[0008] A vertical pole with a vertical channel inside;

[0009] Warning device, including a connecting rod, a rotating part and a warning belt; one end of the connecting rod is connected to the rotating part, the rotating part is rotatably connected to the vertical rod, and a transmission gear is provided on the rotating part; one side of the warning belt is connected to the surface of the connecting rod, and the other side is connected to the surface of the vertical rod;

[0010] Drive rod, movably installed in the vertical channel along the vertical direction of the vertical rod; a drive gear is provided on the drive rod, and the drive gear meshes with the transmission gear; when the drive rod moves vertically, it drives the rotating part to rotate, thereby driving the warning belt to unfold or retract.

[0011] Further, one end of the drive rod extends out of the vertical channel of the vertical rod, and a limit block is provided at the other end; the limit block forms a first limit surface towards the outer peripheral surface of the drive rod; a plug rod is movably connected to the vertical rod, and the plug rod is used to extend into the vertical channel and abut against the first limit surface.

[0012] Further, a first elastic member is sleeved on the drive rod; the first elastic member has an elastic potential energy that drives the drive rod to move towards the outside of the vertical channel.

[0013] Further, the vertical rod includes a first pipe body and a second pipe body, and the first pipe body is connected to the second pipe body; the drive rod is movably installed in the first pipe body, and the limit block extends into the second pipe body; one end of the second pipe body forms a mounting surface, and one end of the first pipe body is connected to the mounting surface of the second pipe body; a second limit surface is provided on the drive rod, one end of the first elastic member abuts against the mounting surface, and the other end abuts against the second limit surface.

[0014] Further, a mounting groove is provided on the mounting surface; a movable block is rotatably connected in the mounting groove; after the movable block rotates towards the inside of the second pipe body, it is used to abut against the first limit surface of the limit block to limit the movement of the drive rod.

[0015] Further, a second elastic member is sleeved on the plug rod, and the second elastic member has an elastic potential energy that drives the plug rod to move towards the vertical channel.

[0016] Further, a horizontal channel is provided on the vertical rod; a ring-shaped protrusion is provided on the outside of the vertical rod; one end of the horizontal channel is communicated with the vertical channel, and the other end is communicated with the ring-shaped protrusion; a third limit surface is provided on the plug rod, and a nut is threadedly connected to the ring-shaped protrusion; one end of the plug rod passes through the nut, and one end of the second elastic member abuts against the nut, and the other end abuts against the third limit surface.

[0017] Further, one end of the plug rod passes through the nut and extends out of the vertical rod, and a pulling block is threadedly connected.

[0018] Further, two oppositely arranged mounting blocks are provided at the top of the vertical rod, and through holes are provided on the mounting blocks; the rotating part includes a rotating shaft and a pin; the rotating shaft is placed between the two mounting blocks, and the pin passes through the through hole and is connected to the rotating shaft, so that the pin rotates relative to the mounting block.

[0019] Further, the warning part includes a plurality of folding fan units, and the plurality of folding fan units form a folding fan shape.

[0020] Beneficial effects: For a warning device in a tunnel of an expressway provided by the present utility model, driving the rotating part to rotate by vertically moving the driving rod can drive the connecting rod to rotate, thereby switching the warning belt to the unfolded and retracted states. Switching to the unfolded state of the warning belt can significantly increase the warning area, and it is easier to be recognized by the following vehicle even at the tunnel exit, improving the warning effect; while switching to the retracted state, it will not occupy the normal driving space of the road surface and avoid interfering with the normal driving in the case of no accident. The present utility model takes into account the effects of high recognition and little influence on normal driving in the case of no accident. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the warning device in the unfolded state;

[0023] Figure 2 Schematic diagram of the warning device in the retracted state;

[0024] Figure 3 Partial cross-sectional view of the warning device;

[0025] Figure 4 Schematic diagram of the second pipe body;

[0026] Figure 5 Explosion schematic diagram of the plug rod;

[0027] Figure 6 Partial schematic diagram of the top of the vertical rod.

[0028] Explanation of the reference numerals in the drawings: 1, vertical rod; 2, warning part; 3, driving rod; 4, plug rod;

[0029] 11, vertical channel; 12, first pipe body; 13, second pipe body; 14, annular protrusion; 15, nut; 16, mounting block;

[0030] 131. Mounting surface; 132. Movable block;

[0031] 21. Connecting rod; 22. Rotating shaft; 23. Driving gear; 24. Pin; 25. Warning tape;

[0032] 251. Folding fan unit;

[0033] 31. Driving gear; 32. Limiting block; 33. First elastic member; 34. Second limiting surface;

[0034] 321. First limiting surface;

[0035] 41. Second elastic member; 42. Third limiting surface; 43. Pulling block. Detailed implementation manners

[0036] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 should not be construed as a limitation of the present application.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0039] In this application, unless otherwise clearly specified or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In this application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0041] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0042] Embodiment

[0043] This embodiment provides a warning device inside a tunnel of an expressway. Referring to Figure 1 and Figure 2 as shown, it includes a vertical pole 1, a warning part 2 and a driving rod 3.

[0044] Referring to Figure 3 as shown, a vertical channel 11 is provided inside the vertical pole 1, and the vertical channel 11 penetrates through the top of the vertical pole 1.

[0045] Referring to Figure 1As shown in the figure, the warning unit 2 includes a connecting rod 21, a rotating part, and a warning belt 25. One end of the connecting rod 21 is connected to the rotating part, the rotating part is rotatably connected to the vertical rod 1, and a transmission gear 23 is provided on the rotating part. When the rotating part rotates around the rotation axis, it drives the connecting rod 21 to flip. One side of the warning belt 25 is connected to the surface of the connecting rod 21, and the other side is connected to the surface of the vertical rod 1. When the connecting rod 21 flips, it drives the warning belt 25 to unfold or retract, thereby switching between the warning state and the normal state.

[0046] Referring to Figure 3 As shown in the figure, the driving rod 3 is movably installed in the vertical channel 11 along the vertical direction of the vertical rod 1; a driving gear 31 is provided on the driving rod 3, and the driving gear 31 meshes with the transmission gear 23. When the driving rod 3 moves vertically, it drives the rotating part to rotate, thereby driving the warning belt 25 to unfold or retract. Specifically, when the driving rod 3 moves downward, it drives the rotating part to rotate in the positive direction, causing the warning belt 25 to unfold; when the driving rod 3 moves upward, it drives the rotating part to rotate in the reverse direction, causing the warning belt 25 to retract. In this embodiment, the positive rotation and the reverse rotation only indicate opposite directions.

[0047] For the warning device in the tunnel of a highway provided in this embodiment, by vertically moving the driving rod 3 to drive the rotating part to rotate, the connecting rod 21 can be driven to rotate, so that the warning belt 25 can be switched between the unfolded and retracted states. Switching to the unfolded state of the warning belt 25 can significantly increase the warning area, and it is easier to be recognized by the following vehicle even at the tunnel exit position, improving the warning effect; while switching to the retracted state, it does not occupy the normal driving space on the road surface and avoids interfering with the normal driving in the case of no accident. The utility model takes into account the effects of high recognition and little impact on normal driving in the case of no accident.

[0048] Specifically, one end of the driving rod 3 extends out of the vertical channel 11 of the vertical rod 1, and a limiting block 32 is provided at the other end. The limiting block 32 forms a first limiting surface 321 facing the outer peripheral surface of the driving rod 3; a plug pin rod 4 is movably connected to the vertical rod 1. After the plug pin rod 4 extends into the vertical channel 11, it abuts against the first limiting surface 321. The driving rod 3 can be pressed to move the driving rod 3 downward. After the warning belt 25 is unfolded, the plug pin rod 4 is inserted into the vertical channel 11 and abuts against the first limiting surface 321, thereby restricting the upward movement of the vertical rod 1 and keeping the warning belt 25 in the unfolded state.

[0049] Specifically, a first elastic member 33 is sleeved on the driving rod 3; the first elastic member 33 has elastic potential energy that drives the driving rod 3 to move outward from the vertical channel 11. When it is necessary to restore the warning tape 25 to the retracted state, by pulling out the bolt rod 4 outward, when the limit of the bolt rod 4 is lost, under the action of the first elastic member 33, the driving rod 3 will move upward, driving the rotating part to rotate, so as to retract the warning tape 25. In this embodiment, the first elastic member 33 can be a spring.

[0050] Specifically, the vertical rod 1 includes a first pipe body 12 and a second pipe body 13, and the first pipe body 12 is connected to the second pipe body 13. The driving rod 3 is movably installed in the first pipe body 12, and the limiting block 32 extends into the second pipe body 13. One end of the second pipe body 13 forms a mounting surface 131, and one end of the first pipe body 12 is connected to the mounting surface 131 of the second pipe body 13; a second limiting surface 34 is provided on the driving rod 3, one end of the first elastic member 33 abuts against the mounting surface 131, and the other end abuts against the second limiting surface 34. During assembly, first assemble the driving rod 3 into the first pipe body 12 and assemble the first elastic member 33, then abut one end of the first pipe body 12 against the mounting surface 131 of the second pipe body 13 and bolt them. The mounting surface 131 provides an assembly surface for the first elastic member 33.

[0051] Specifically, a mounting groove is provided on the mounting surface 131; a movable block 132 is rotatably connected in the mounting groove; after the movable block 132 rotates towards the inside of the second pipe body 13, it is used to abut against the first limiting surface 321 of the limiting block 32 to limit the movement of the driving rod 3. Before assembling the first pipe body 12 and the second pipe body 13, first rotate the movable block 132 away from the vertical channel 11, then insert one end of the limiting block 32 on the driving rod 3 into the second pipe body 13. At this time, without the restriction of the movable block 132, the limiting block 32 can be smoothly inserted into the second pipe body 13, then flip the movable block 132 so that the movable block 132 extends into the vertical channel 11, and finally connect the first pipe body 12 and the second pipe body 13. The first pipe body 12 presses the movable block 132 so that the movable block 132 remains in the state of extending into the second pipe body 13. The movable block 132 limits the limiting block 32, which can prevent the driving rod 3 from continuing to move outward and disengaging when the warning tape 25 is in the retracted state.

[0052] Specifically, a second elastic member 41 is sleeved on the bolt rod 4, and the second elastic member 41 has elastic potential energy that drives the bolt rod 4 to move towards the vertical channel 11. This enables the bolt rod 4 to automatically rebound.

[0053] Specifically, the limiting block 32 includes a guiding inclined surface. When the driving rod 3 moves downward, the pin rod 4 can be extruded under the action of the guiding inclined surface until the first limiting surface 321 is located below the pin rod 4, causing the pin rod 4 to automatically rebound, thereby limiting the driving rod 3.

[0054] Specifically, referring to Figure 3 and Figure 5 As shown, a horizontal channel is provided on the vertical rod 1; an annular protrusion 14 is provided on the outer side of the vertical rod 1; one end of the horizontal channel is communicated with the vertical channel 11, and the other end is communicated with the annular protrusion 14; a third limiting surface 42 is provided on the pin rod 4, and a nut 15 is threadedly connected to the annular protrusion 14; one end of the pin rod 4 passes through the nut 15, and one end of the second elastic member 41 abuts against the nut 15, and the other end abuts against the third limiting surface 42. One end of the pin rod 4 passes through the nut 15 and extends out of the vertical rod 1, and a pulling block 43 is threadedly connected. When installing the pin rod 4, first sleeved the second elastic member 41 on the pin rod 4, then insert one end of the pin rod 4 into the horizontal channel, so that the other end of the pin rod 4 passes through the nut 15, and threadedly connect the nut 15 with the annular protrusion 14, and make the second elastic member 41 abut against the nut to provide an assembly surface for the second elastic member 41, and finally install the pulling block 43 to facilitate pulling the pin rod 4 outwards.

[0055] Specifically, referring to Figure 6 As shown, two oppositely arranged mounting blocks 16 are provided at the top of the vertical rod 1, and through holes are provided on the mounting blocks 16; the rotating part includes a rotating shaft 22 and a pin 24; the rotating shaft 22 is placed between the two mounting blocks 16, and the pin 24 passes through the through hole and is connected to the rotating shaft 22, so that the pin 24 rotates relative to the mounting block 16. The pins 24 are respectively assembled on both sides of the rotating shaft 22. Through the limit of the pins 24, the assembly of the rotating shaft 22 on the vertical rod 1 is completed, so that the pin 24 can rotate relative to the vertical rod 1, and thus the rotating shaft 22 can rotate relative to the vertical rod 1. The pin 24 and the rotating shaft 22 can be threadedly connected or can be snap-connected.

[0056] Specifically, continue to refer to Figure 1 As shown, the warning part 2 includes a plurality of folding fan units 251, and the plurality of folding fan units 251 form a folding fan shape. It is convenient for the warning belt 25 to be better closed or unfolded.

[0057] Specifically, the warning belt 25 faces the side where the road surface is located after being unfolded. A reflective film layer is provided on the warning belt 25 for warning the following driving personnel.

[0058] Specifically, a certain interval can be installed in the tunnel, and a plurality of warning devices are respectively arranged. The driver can operate the warning device at the corresponding position according to the accident location, so that the warning belt 25 is unfolded for warning.

[0059] Usage process: When an accident occurs, after the driver sets up the triangular warning stand, select the warning device at the corresponding position, press down the driving rod 3, so that the driving rod 3 drives the rotating shaft 22 to rotate, thereby causing the connecting rod 21 to flip and the warning belt 25 to unfold; during the downward movement of the driving rod 3, the guiding inclined surface of the limiting block 32 squeezes the pin rod 4 until the pin rod 4 is above the first limiting surface 321, and then moves towards the vertical channel 11 under the action of the second elastic member 41 to limit the limiting block 32 and keep the warning belt 25 in the unfolded state.

[0060] When the accident is handled and the normal traffic resumes, pull out the pin rod 4 outward, and the driving rod 3 will move upward under the action of the first elastic member 33, thereby driving the warning belt 25 to retract, and finally stop moving under the limitation of the movable block 132 to avoid coming out.

[0061] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0062] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A warning device in a highway tunnel, characterized in that: include: A vertical pole with a vertical passage inside; The warning part includes a connecting rod, a rotating part and a warning belt; one end of the connecting rod is connected to the rotating part, the rotating part is rotatably connected to the vertical pole, and a transmission tooth is provided on the rotating part; one side of the warning belt is connected to the surface of the connecting rod, and the other side is connected to the surface of the vertical pole; A driving rod is movably installed in the vertical channel along the vertical direction of the vertical rod; the driving rod is provided with a driving tooth, and the driving tooth is meshed with the transmission tooth; When the driving rod moves vertically, the rotating part is driven to rotate, thereby driving the warning belt to expand or retract.

2. The warning device in a highway tunnel according to claim 1, characterized in that: One end of the driving rod extends out of the vertical channel of the vertical pole, and the other end is provided with a limit block, and the limit block forms a first limit surface toward the outer peripheral surface of the driving rod; a latch rod is movably connected to the vertical pole, and the latch rod is used to extend into the vertical channel and then abut against the first limit surface.

3. The warning device in a highway tunnel according to claim 2, characterized in that: A first elastic member is sleeved on the driving rod; the first elastic member has elastic potential energy for driving the driving rod to move out of the vertical channel.

4. The warning device in a highway tunnel according to claim 3, characterized in that: The vertical pole includes a first tube body and a second tube body, the first tube body is connected to the second tube body; the driving rod is movably installed in the first tube body, and the limit block extends into the second tube body; one end of the second tube body forms a mounting surface, and one end of the first tube body is connected to the mounting surface of the second tube body; a second limit surface is provided on the driving rod, one end of the first elastic member is against the mounting surface, and the other end is against the second limit surface.

5. The warning device in a highway tunnel according to claim 4, characterized in that: The mounting surface is provided with a mounting groove; a movable block is rotatably connected in the mounting groove; after the movable block is rotated toward the inside of the second tube body, it is used to abut against the first limiting surface of the limiting block to limit the movement of the driving rod.

6. The warning device in a highway tunnel according to claim 2, characterized in that: A second elastic member is sleeved on the latch rod, and the second elastic member has elastic potential energy for driving the latch rod to move toward the vertical channel.

7. The warning device in a highway tunnel according to claim 6, characterized in that: A horizontal channel is provided on the vertical pole; an annular protrusion is provided on the outer side of the vertical pole; one end of the horizontal channel is connected with the vertical channel, and the other end is connected with the annular protrusion; a third limiting surface is provided on the latch rod, and a nut is threadedly connected to the annular protrusion; one end of the latch rod passes through the nut, and one end of the second elastic member abuts against the nut, and the other end abuts against the third limiting surface.

8. The warning device in a highway tunnel according to claim 7, characterized in that: One end of the latch rod passes through a nut and extends outward of the vertical rod, and is threadedly connected to the pulling block.

9. The warning device in a highway tunnel according to claim 1, characterized in that: Two mounting blocks arranged opposite to each other are provided on the top of the vertical pole, and a through hole is provided on the mounting block; the rotating part includes a rotating shaft and a pin; the rotating shaft is placed between the two mounting blocks, and the pin passes through the through hole and is connected to the rotating shaft, so that the pin rotates relative to the mounting block.

10. The warning device in a highway tunnel according to claim 1, characterized in that: The warning part includes a plurality of folding fan units, and the plurality of folding fan units form a folding fan shape.

Images