A high risk tunnel entry tunnel warning device
By introducing a replacement mechanism and cleaning components into the high-risk tunnel warning device, the system automatically switches to the secondary display screen when the main screen is damaged. This solves the problem of the warning device not being able to resume operation in a timely manner, ensures uninterrupted information prompts at tunnel entrances and exits, and improves tunnel safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG CONSTR CO LTD OF CHINA RAILWAY NO 3 ENG GRP CO LTD
- Filing Date
- 2023-11-15
- Publication Date
- 2026-07-21
AI Technical Summary
Existing high-risk tunnel entry warning devices are difficult to restore to operation in a timely manner after the variable information display screen is damaged, resulting in the loss of warning effect and potentially causing traffic accidents.
A warning device was designed, comprising a support column, a warning frame, a sign, a main display screen, and a replacement mechanism. The replacement mechanism automatically switches to the secondary display screen when the main display screen is damaged, and is equipped with a cleaning component to keep the screen clean until maintenance personnel arrive on site.
When the display screen malfunctions, the system automatically switches to the secondary display screen to continue providing warnings, ensuring uninterrupted information display at the tunnel entrance until maintenance personnel arrive on site to replace or repair the screen, thus improving safety at the tunnel entrance and exit.
Smart Images
Figure CN117328390B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of tunnel early warning equipment technology, and specifically to a high-risk tunnel entry warning device. Background Technology
[0002] With the continuous construction of highways in my country, more and more tunnels are being developed. However, due to the complex environmental factors around the tunnels, some tunnels are defined as high-risk tunnels. These tunnels are more likely to cause harm to passing vehicles and drivers than ordinary tunnels. Therefore, warning signs and other warning devices are set up along the roadside before entering the tunnel to remind drivers that there is a tunnel ahead and they need to drive carefully.
[0003] Currently, most tunnel entry warning devices use variable message signs (VMS) to warn drivers. However, since tunnels are generally located in suburban or remote mountainous areas, if the VMS is damaged, the warning device will not be effective and will require maintenance personnel to arrive on-site for repairs before it can be used again. This process takes a relatively long time and may lead to accidents during this period. Summary of the Invention
[0004] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a high-risk tunnel entry warning device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-risk tunnel entry warning device, comprising a support column and a replacement mechanism, characterized in that: a warning frame is screwed to one side of the support column, and an identification plate is connected to the front surface of the warning frame via a slot; a display compartment is provided above the identification plate; a main display screen is installed inside the display compartment; and a replacement mechanism is installed on the outside of the main display screen. The replacement mechanism includes a fixing component, a support block, a three-stage push rod, a secondary display screen, and a telescopic component. Fixing components are installed on both sides of the main display screen, and support blocks are welded to the outer sides of the fixing components. A three-stage push rod is installed at the bottom of each support block. A secondary display screen is installed at the rear end of the main display screen, and the secondary display screen is installed on the rear end of the inner wall of the display compartment via a telescopic component on the back.
[0006] In a preferred embodiment, the fixing component includes a mounting frame, a self-locking hinge, a fixing plate, and a flip-up arc. Mounting frames are provided on both sides of the main display screen, and a self-locking hinge is screwed to one side of the mounting frame. A fixing plate is screwed to the other side of the self-locking hinge. A flip-up arc is integrally formed on the surface of the fixing plate.
[0007] In a preferred embodiment, the self-locking hinge is arranged symmetrically about the central axis of the mounting frame, and the mounting frame forms a rotating structure with the fixing plate through the self-locking hinge.
[0008] In a preferred embodiment, the telescopic assembly includes a guide rail, a moving block, a T-shaped rod, synchronous teeth, and a servo motor. The back of the secondary display screen is screwed to the guide rail, and the moving block is slidably connected inside the guide rail. The surface of the moving block is rotatably connected to the T-shaped rod, and synchronous teeth are installed on both sides of the other end of the T-shaped rod. One end of the T-shaped rod on the left side is mounted on the output shaft of the servo motor via a coupling.
[0009] In a preferred embodiment, the guide rail is symmetrically arranged about the central axis of the sub-display screen, the moving block is symmetrically arranged about the central axis of the guide rail, and both ends of the short axis of the T-shaped rod are rotatably connected to the rear end of the inner wall of the display compartment via bearings.
[0010] In a preferred embodiment, the display compartment is adhesively connected to a main rubber pad, and a secondary rubber pad is disposed below the main rubber pad. The secondary rubber pad is adhesively connected to the upper surface of the closing plate, and servo motors are installed on both sides of the closing plate. The servo motors are embedded in the inner wall of the display compartment.
[0011] In a preferred embodiment, a storage compartment is provided below the display compartment, and a through groove is provided on both sides of the inner wall of the storage compartment. The through groove is connected to the three-stage push rod by screws.
[0012] In a preferred embodiment, a cleaning chamber is installed at the top of the warning frame, and a through slot 2 is provided on one side of the cleaning chamber. A cleaning assembly is installed inside the cleaning chamber. The cleaning assembly includes a DC motor, a drive gear, a connecting gear, a driven gear, a lead screw, a nut seat, a servo motor 2, a cleaning seat, and a cleaning soft brush. The DC motor is installed inside the cleaning chamber, and a drive gear is installed on the outside of the output shaft of the DC motor. A connecting gear is engaged on one side of the drive gear, and a driven gear is engaged on the other side of the connecting gear. A lead screw is installed on the side of the driven gear, and a nut seat is threaded onto the surface of the lead screw. A cleaning seat is rotatably connected to one side of the nut seat via the servo motor 2, and a cleaning soft brush is slotted onto one side of the cleaning seat.
[0013] In a preferred embodiment, the connecting teeth are rotatably connected to the cleaning chamber via a rotating shaft with bearings installed at both ends, and the output shaft and lead screw of the DC motor are rotatably connected to the cleaning chamber via bearings. The width of the cleaning brush is the same as the width of the through groove.
[0014] The technical effects and advantages of this invention are as follows: 1. This invention, through the setting of a replacement mechanism and cleaning components, ensures the normal operating state of the warning device during use: the main display screen operates, showing relevant information about the tunnel ahead to passing vehicles, and combined with the "Tunnel Ahead" sign, providing a warning to the driver. After the warning device operates for a period of time, the second servo motor operates, causing the cleaning seat to flip downwards, thereby moving the cleaning brush from a horizontal to a vertical position. Simultaneously, the bristles of the cleaning brush contact the main display screen, activating the DC motor. Through the engagement of the active gear, connecting gear, and driven gear, the screw rotates, causing the nut seat to move the cleaning seat laterally. During operation, a cleaning brush removes dust and other debris. When the main display screen is damaged and unusable, the controller inside the warning frame receives feedback that the main display screen is disconnected. This triggers a servo motor to rotate the closing plate downwards, connecting the display compartment to the storage compartment. Then, a three-stage push rod moves the main display screen downwards into the storage compartment. Simultaneously, a servo motor rotates the left T-shaped rod, which in turn rotates the right T-shaped rod via a synchronous gear. This causes the moving block at the other end of the T-shaped rod to slide along the guide rail. Ultimately, the secondary display screen moves forward within the display compartment to the position of the main display screen, taking over its function.
[0015] 2. After receiving feedback from the controller inside the warning frame, the maintenance personnel will go to the site, open the storage compartment, remove the bolts securing the fixing plate to the main display screen, flip the fixing plate using the flip-plate mechanism to remove the damaged main display screen, install the repaired or replaced main display screen in the mounting frame, reset the replacement mechanism, and move the main display screen back to its original position to continue working. This ensures that if the main display screen is damaged, a warning can be given to passing drivers through the secondary display screen before the maintenance personnel arrive. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 2 This is a schematic diagram of the overall back structure of the present invention; Figure 3 This is a top cross-sectional view of the display compartment structure of the present invention; Figure 4 This is a front sectional view of the storage compartment of the present invention; Figure 5 This is a schematic diagram of the fixed component structure of the present invention; Figure 6 This is a front sectional view of the main display screen moving into the storage compartment according to the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the main display screen moving into the storage compartment according to the present invention; Figure 8 This is a schematic diagram of the telescopic component structure of the present invention; Figure 9 This is a top sectional view of the cleaning chamber structure of the present invention.
[0017] The attached diagram is labeled as follows: 1. Support column; 2. Warning frame; 3. Signboard; 4. Display compartment; 41. Main rubber pad; 42. Secondary rubber pad; 43. Closing plate; 44. Servo motor one; 5. Main display screen; 6. Replacement mechanism; 61. Fixing component; 611. Mounting frame; 612. Self-locking hinge; 613. Fixing plate; 614. Flip-up arc; 62. Support block; 63. Three-stage push rod; 64. Secondary display screen; 65. Telescopic assembly; 651, guide rail; 652, moving block; 653, T-shaped rod; 654, synchronous gear; 655, servo motor; 7, storage compartment; 71, through slot one; 8, cleaning compartment; 81, through slot two; 9, cleaning assembly; 91, DC motor; 92, driving gear; 93, connecting gear; 94, driven gear; 95, lead screw; 96, nut seat; 97, servo motor two; 98, cleaning seat; 99, cleaning soft brush. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Example 1 according to Figure 1-9 As shown, the present invention provides a technical solution: a high-risk tunnel entry warning device, including a support column 1 and a replacement mechanism 6, characterized in that: a warning frame 2 is screwed to one side of the support column 1, an identification plate 3 is connected to the front surface of the warning frame 2 by a slot, a display compartment 4 is opened above the identification plate 3, a main display screen 5 is installed inside the display compartment 4, and a replacement mechanism 6 is installed on the outside of the main display screen 5. The replacement mechanism 6 includes a fixing component 61, a support block 62, a three-stage push rod 63, a secondary display screen 64, and a telescopic component 65. The fixing components 61 are installed on both sides of the main display screen 5. The support blocks 62 are welded to the outer side of the fixing components 61. The three-stage push rods 63 are installed at the bottom of the support blocks 62. The secondary display screen 64 is installed at the rear end of the main display screen 5. The secondary display screen 64 is installed on the rear end of the inner wall of the display compartment 4 through the telescopic component 65 on the back.
[0020] Furthermore, the fixing component 61 includes a mounting frame 611, a self-locking hinge 612, a fixing plate 613, and a flip-up arc 614. Mounting frames 611 are provided on both sides of the main display screen 5. The self-locking hinge 612 is screwed to one side of the mounting frame 611, and the fixing plate 613 is screwed to the other side of the self-locking hinge 612. The surface of the fixing plate 613 is integrally formed with a flip-up arc 614. During installation, the main display screen 5 is placed between the two mounting frames 611, and then the fixing plate 613 is snapped inward. Finally, the fixing plate 613 is bolted to the main display screen 5, thereby fixing the position of the main display screen 5.
[0021] Furthermore, the self-locking hinge 612 is symmetrically arranged about the central axis of the mounting frame 611. The mounting frame 611 forms a rotating structure with the fixing plate 613 through the self-locking hinge 612. The self-locking hinge 612 is a 90-degree self-locking hinge. The fixing plate 613 and the mounting frame 611 can switch between two states: 90 degrees and 180 degrees. After switching, they can be locked.
[0022] Furthermore, the telescopic assembly 65 includes a guide rail 651, a moving block 652, a T-shaped rod 653, a synchronous gear 654, and a servo motor 655. The guide rail 651 is screwed to the back of the secondary display screen 64. The moving block 652 is slidably connected inside the guide rail 651. The T-shaped rod 653 is rotatably connected to the surface of the moving block 652. Synchronous gears 654 are installed on both sides of the other end of the T-shaped rod 653. One end of the left T-shaped rod 653 is installed on the output shaft of the servo motor 655 through a coupling. The servo motor 655 drives the left T-shaped rod 653 to rotate. The left T-shaped rod 653 drives the right T-shaped rod 653 to rotate through the synchronous gear 654. This causes the moving block 652 at the other end of the T-shaped rod 653 to slide along the guide rail 651. Finally, the secondary display screen 64 moves forward in the display compartment 4 to the position of the main display screen 5 and takes over the operation of the main display screen 5.
[0023] Furthermore, the guide rail 651 is symmetrically arranged about the central axis of the secondary display screen 64, and the moving block 652 is symmetrically arranged about the central axis of the guide rail 651. Both ends of the short axis of the T-shaped rod 653 are rotatably connected to the rear end of the inner wall of the display compartment 4 through bearings. The movement of the secondary display screen 64 is controlled by two sets of telescopic components 65, ensuring the left and right balance of the secondary display screen 64.
[0024] Example 2 Please see Figure 4 and Figure 8As shown in the first embodiment, as another implementation of the present invention, the display compartment 4 is connected to a main rubber pad 41, and a secondary rubber pad 42 is provided below the main rubber pad 41. The secondary rubber pad 42 is connected to the upper surface of the closing plate 43. Servo motors 44 are installed on both sides of the closing plate 43. The servo motors 44 are embedded in the inner wall of the display compartment 4. The main rubber pad 41 and the secondary rubber pad 42 divide the display compartment 4 into two spaces from the outside to the inside, corresponding to the main display screen 5 and the secondary display screen 64, respectively. When the main display screen 5 needs to be lowered to the storage compartment 7, the servo motors 44 drive the closing plate 43 to flip downward, so that the display compartment 4 and the storage compartment 7 are connected. After lowering, the servo motors 44 reverse, driving the closing plate 43 to flip upward, separating the display compartment 4 and the storage compartment 7.
[0025] Example 3 Please see Figure 6 , Figure 7 and Figure 8 As shown in the first embodiment, as another implementation of the present invention, a storage compartment 7 is provided below the display compartment 4. A through groove 71 is provided on both sides of the inner wall of the storage compartment 7. The through groove 71 is connected to the three-stage push rod 63 by screws. The through groove 71 on the inner wall of the storage compartment 7 extends upward to the inner wall of the display compartment 4 to adapt to the stroke of the three-stage push rod 63, thereby ensuring the height of the main display screen 5.
[0026] Example 4 Please see Figure 1-8 As shown in the comparison with Embodiment 1, as another embodiment of the present invention, a cleaning chamber 8 is installed at the top of the warning frame 2. A through groove 81 is opened on one side of the cleaning chamber 8. A cleaning assembly 9 is installed inside the cleaning chamber 8. The cleaning assembly 9 includes a DC motor 91, a drive gear 92, a connecting gear 93, a driven gear 94, a lead screw 95, a nut seat 96, a servo motor 97, a cleaning seat 98, and a cleaning soft brush 99. The DC motor 91 is installed inside the cleaning chamber 8. The drive gear 92 is installed on the outside of the output shaft of the DC motor 91. The connecting gear 93 meshes on one side of the drive gear 92, and the driven gear 94 meshes on the other side of the connecting gear 93. A cleaning brush 99 is installed on the side of the driven gear 94. A lead screw 95 has a nut seat 96 threaded onto its surface. A cleaning seat 98 is rotatably connected to one side of the nut seat 96 via a servo motor 97. A cleaning brush 99 is connected to one side of the cleaning seat 98 via a slot. When the servo motor 97 operates, the cleaning seat 98 flips downward, causing the cleaning brush 99 to move from a horizontal to a vertical position. Simultaneously, the bristles of the cleaning brush 99 contact the main display screen 5, which in turn activates the DC motor 91. Through the engagement of the drive gear 92, connecting gear 93, and driven gear 94, the motor drives the lead screw 95 to rotate, thereby causing the nut seat 96 to move the cleaning seat 98 laterally. At the same time, the cleaning brush 99 cleans away any adhering dust and other debris.
[0027] Furthermore, the connecting tooth 93 is rotatably connected to the cleaning chamber 8 via a rotating shaft with bearings installed at both ends. The output shaft of the DC motor 91 and the lead screw 95 are rotatably connected to the cleaning chamber 8 via bearings. The width of the cleaning soft brush 99 is the same as the width of the through groove 81. Through gear transmission, the stability and accuracy of the lead screw 95 transmission are improved. When the cleaning component 9 is not working, the cleaning soft brush 99 is in a horizontal state, and the tips of the bristles can be retracted into the through groove 81 for protection.
[0028] Working principle of this invention: Step 1: Normal working status of the warning device: The main display screen 5 is working, showing relevant information about the tunnel ahead to passing vehicles, and together with the "Tunnel Ahead" sign 3, it provides a warning to the driver; Step 2: After the warning device has been working for a period of time, the servo motor 97 is activated, causing the cleaning seat 98 to flip downwards, which in turn causes the cleaning brush 99 to move from a horizontal state to a vertical state. At the same time, the bristles of the cleaning brush 99 contact the main display screen 5, which in turn activates the DC motor 91. Through the cooperation of the active tooth 92, the connecting tooth 93, and the driven tooth 94, the screw 95 is driven to rotate, which causes the nut seat 96 to move the cleaning seat 98 laterally. Meanwhile, the cleaning brush 99 cleans away the attached dust and other debris. Step 3: When the main display screen 5 is damaged and cannot be used, the controller inside the warning frame 2 receives feedback that the main display screen 5 is disconnected. Then, the servo motor 44 drives the closing plate 43 to flip downward, so that the display compartment 4 is connected to the storage compartment 7. Then, the three-stage push rod 63 drives the main display screen 5 to move downward into the storage compartment 7. At the same time, the servo motor 655 drives the left T-shaped rod 653 to rotate. The left T-shaped rod 653 drives the right T-shaped rod 653 to rotate through the synchronous gear 654. This causes the moving block 652 at the other end of the T-shaped rod 653 to slide along the guide rail 651. Finally, the secondary display screen 64 moves forward in the display compartment 4 to the position of the main display screen 5 and takes over the work of the main display screen 5. Step 4: After the maintenance personnel receive the information feedback from the controller inside the warning box 2, they go to the site, open the storage compartment 7, remove the bolts fixing the fixing plate 613 to the main display screen 5, flip the fixing plate 613 through the flip plate arc 614 to remove the damaged main display screen 5. Step 5: Install the repaired or replaced main display screen 5 into the mounting frame 611, reset the replacement mechanism 6, so that the main display screen 5 moves to its original position and continues to work.
[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A high-risk tunnel entry warning device, comprising a support column (1) and a replacement mechanism (6), characterized in that: The support column (1) is screwed to one side of a warning frame (2), and the front surface of the warning frame (2) is connected to a sign (3). A display compartment (4) is opened above the sign (3), and a main display screen (5) is installed inside the display compartment (4). A replacement mechanism (6) is installed on the outside of the main display screen (5). The replacement mechanism (6) includes a fixing component (61), a support block (62), a three-stage push rod (63), a secondary display screen (64), and a telescopic component (65). The fixing components (61) are installed on both sides of the main display screen (5), and the support blocks (62) are welded to the outer side of the fixing components (61). The three-stage push rods (63) are installed at the bottom of the support blocks (62). The secondary display screen (64) is installed at the rear end of the main display screen (5), and the secondary display screen (64) is installed on the rear end of the inner wall of the display compartment (4) through the telescopic component (65) on the back. The telescopic assembly (65) includes a guide rail (651), a moving block (652), a T-shaped rod (653), a synchronous gear (654), and a servo motor (655). The back of the sub-display screen (64) is screwed to the guide rail (651), and the moving block (652) is slidably connected inside the guide rail (651). The surface of the moving block (652) is rotatably connected to the T-shaped rod (653), and synchronous gears (654) are installed on both sides of the other end of the T-shaped rod (653). One end of the T-shaped rod (653) on the left side is installed on the output shaft of the servo motor (655) through a coupling. The guide rail (651) is symmetrical about the central axis of the sub-display screen (64), the moving block (652) is symmetrical about the central axis of the guide rail (651), and both ends of the short axis of the T-shaped rod (653) are rotatably connected to the rear end of the inner wall of the display compartment (4) through bearings; The display compartment (4) is bonded to a main rubber pad (41), and a secondary rubber pad (42) is provided below the main rubber pad (41). The secondary rubber pad (42) is bonded to the upper surface of the closing plate (43), and servo motors (44) are installed on both sides of the closing plate (43). The servo motors (44) are embedded in the inner wall of the display compartment (4). Below the display compartment (4) is a storage compartment (7), and both sides of the inner wall of the storage compartment (7) are provided with through slots (71), and the through slots (71) are connected to the three-stage push rod (63) by screws.
2. The high-risk tunnel entry warning device according to claim 1, characterized in that: The fixing component (61) includes a mounting frame (611), a self-locking hinge (612), a fixing plate (613), and a flip-up arc (614). The main display screen (5) is provided with mounting frames (611) on both sides, and a self-locking hinge (612) is screwed to one side of the mounting frame (611), and a fixing plate (613) is screwed to the other side of the self-locking hinge (612). The surface of the fixing plate (613) is integrally formed with a flip-up arc (614).
3. A high-risk tunnel entry warning device according to claim 2, characterized in that: The self-locking hinge (612) is arranged symmetrically about the central axis of the mounting frame (611), and the mounting frame (611) forms a rotating structure with the fixing plate (613) through the self-locking hinge (612).
4. A high-risk tunnel entry warning device according to claim 1, characterized in that: The top of the warning frame (2) is equipped with a cleaning chamber (8), and a through slot (81) is provided on one side of the cleaning chamber (8). A cleaning assembly (9) is installed inside the cleaning chamber (8). The cleaning assembly (9) includes a DC motor (91), a drive gear (92), a connecting gear (93), a driven gear (94), a lead screw (95), a nut seat (96), a servo motor (97), a cleaning seat (98), and a cleaning soft brush (99). The cleaning chamber (8) is equipped with a DC motor (91), and the direct drive gear (92) is provided with a through slot (81) on one side of the cleaning chamber (8). An active gear (92) is installed on the outside of the output shaft of the flow motor (91). A connecting gear (93) is engaged on one side of the active gear (92), and a driven gear (94) is engaged on the other side of the connecting gear (93). A lead screw (95) is installed on the side of the driven gear (94), and a nut seat (96) is threaded on the surface of the lead screw (95). A cleaning seat (98) is rotatably connected to one side of the nut seat (96) through a servo motor (97), and a cleaning soft brush (99) is connected to one side of the cleaning seat (98) through a slot.
5. A high-risk tunnel entry warning device according to claim 4, characterized in that: The connecting tooth (93) is rotatably connected to the cleaning chamber (8) via a rotating shaft with bearings installed at both ends, and the output shaft of the DC motor (91) and the lead screw (95) are rotatably connected to the cleaning chamber (8) via bearings. The width of the cleaning soft brush (99) is the same as the width of the through groove (81).