Tunnel entrance gradually-heightened arc-shaped induction device

Abstract

The utility model discloses a gradually-heightened arc-shaped induction device at a tunnel entrance, and relates to the field of tunnel traffic safety facilities. The arc-shaped induction plates are arranged on the two sides of the ground at a tunnel entrance, and the heights of the arc-shaped induction plates are gradually increased in the tunnel entrance direction; the supporting mechanisms are mounted at the bottoms of the arc-shaped induction plates; the adjusting mechanism is installed between the arc-shaped induction plates and used for adjusting the height and angle of the arc-shaped induction plates so as to adapt to different tunnel entrance environments, and the adjusting mechanism comprises a fixing sleeve rod arranged at the top of the supporting mechanism and a threaded rod arranged in the top end of the fixing sleeve rod in a threaded mode. Through the gradually heightened arc-shaped induction plates, a driver can be effectively reminded to slow down, the driving safety of a tunnel entrance is improved, people can adjust the height and the induction angle of the arc-shaped induction device by rotating the threaded rod, flexibility is achieved, real-time adjustment can be conducted according to the specific environment of the tunnel entrance, and the safety of the tunnel entrance is improved. The safety induction effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of tunnel traffic safety facilities, in particular to a gradually heightened arc-shaped induction device at a tunnel entrance. Background Art

[0002] Tunnel entrances are prone to traffic accidents. When drivers enter a dark environment from a bright environment, a "black hole effect" occurs, causing visual errors and easily leading to traffic accidents. Currently, tunnel entrances are mostly used to remind drivers by setting speed bumps and strengthening lighting, but the effect is limited.

[0003] Therefore, the patent with announcement number CN217579848U discloses "a gradually elevated arc-shaped induction facility at the tunnel entrance, which can enable the driver to form an experience or feeling of entering the tunnel in advance before driving into the tunnel, thereby reducing tension, including a left-side column array and a right-side column array arranged on the road surface outside the tunnel at the tunnel entrance, and a guide mark is arranged on the top of each column. The guide mark is an arc-shaped structure, and the arc-shaped inner concave surface of the guide mark faces the driving lane. The closer the distance between the column and the outer facade of the tunnel, the higher the height of the guide mark on the column."

[0004] Regarding the above-mentioned related technologies, the inventor believes that the traffic safety facilities at the tunnel entrance are fixed and cannot be flexibly adjusted in height and angle according to the specific environment of the tunnel entrance (such as light, vehicle speed, etc.), and the safety induction effect is relatively limited. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a gradually heightened arc induction device at the tunnel entrance. The specific technical scheme is as follows:

[0006] A gradually heightened arc induction device at a tunnel entrance comprises a plurality of arc induction plates arranged on both sides of the ground at the tunnel entrance and gradually increasing in height along the tunnel entrance direction, a supporting mechanism installed at the bottom of the plurality of arc induction plates, and an adjusting mechanism installed between the arc induction plates and used for adjusting the height and angle of the arc induction plates to adapt to different tunnel entrance environments, wherein the adjusting mechanism comprises a fixed sleeve rod arranged at the top of the supporting mechanism, and a threaded rod threadedly arranged in the top end of the fixed sleeve rod, wherein the arc induction plate is fixedly arranged at the top end of the threaded rod, and a fixing mechanism is arranged in the fixed sleeve rod for self-locking the threaded rod to prevent the arc induction plate from rotating and rising and falling under the push of the airflow of a vehicle.

[0007] By adopting the above technical solution, people can adjust the height and induction angle of the arc induction device by rotating the threaded rod, which is flexible.

[0008] Optionally, the supporting mechanism includes a base plate installed on the ground at the tunnel entrance, and a plurality of mounting holes opened on both sides of the base plate, the fixed sleeve rod is fixed on the top of the base plate, and a plurality of reinforcing plates are fixed between the top of the base plate and the outer wall of the bottom end of the fixed sleeve rod.

[0009] By adopting the above technical solution, people can use bolts to pass through the installation holes to fix the bottom plate on both sides of the ground at the tunnel entrance.

[0010] Optionally, a working groove is defined in the fixed sleeve rod, and the threaded rod is threadedly connected to the top of the working groove of the fixed sleeve rod.

[0011] By adopting the above technical solution, the fixed sleeve rod can support and limit the threaded rod through the working groove.

[0012] Optionally, the fixing mechanism includes a self-locking rod fixed at the bottom end of the threaded rod, a plurality of annular grooves provided on the outer wall of the self-locking rod, and a plurality of fixed blocks movably provided in the fixed sleeve rod and cooperatedly inserted in the annular grooves, a connecting plate is fixed between the plurality of the fixed blocks, a plurality of springs are fixed between the side of the connecting plate facing away from the fixed block and the working groove of the fixed sleeve rod, a square rod penetrating through and extending to the outside of the fixed sleeve rod is fixed in the middle part of the side of the connecting plate facing away from the fixed block, a grip ring for people to hold is fixed at one end of the square rod, and a limiting ring for further supporting and limiting the other rod is fixed in the working groove of the fixed sleeve rod.

[0013] By adopting the above technical solution, under the spring force, the fixed block will be inserted into the corresponding annular groove, and cooperate with the limiting of the square rod and other components to self-lock and fix the self-locking rod and the threaded rod, so that the arc-shaped induction plate cannot be rotated and raised and lowered when pushed by the airflow of the vehicle.

[0014] In summary, the present invention has at least one of the following beneficial effects:

[0015] 1. Through a number of gradually increasing arc-shaped induction plates, drivers can be effectively reminded to slow down, thereby improving driving safety at the tunnel entrance. People can adjust the height and induction angle of the arc-shaped induction device by rotating the threaded rod. It is flexible and can be adjusted in real time according to the specific environment of the tunnel entrance, thereby improving the safety induction effect.

[0016] 2. Through the elastic force of the spring, the fixing block can be inserted into the corresponding annular groove to self-lock and fix the self-locking rod and the threaded rod, so that the arc induction plate cannot be rotated and raised and lowered under the push of the vehicle's airflow, ensuring the safe induction effect of the arc induction device, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a right side cross-sectional view of the arc-shaped induction plate, bottom plate and fixed sleeve rod of the utility model;

[0019] Figure 3 It is a front view of the self-locking rod of the utility model;

[0020] Figure 4 The utility model Figure 2 A magnified view of the structure in the middle.

[0021] Explanation of the accompanying drawings: 1. Arc induction plate; 2. Bottom plate; 21. Mounting hole; 22. Reinforcement plate; 3. Fixed sleeve rod; 31. Threaded rod; 32. Working groove; 4. Self-locking rod; 41. Annular groove; 42. Fixed block; 43. Spring; 44. Connecting plate; 45. Square rod; 46. Grip ring; 47. Limiting ring. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-4 The utility model is described in further detail.

[0023] The utility model embodiment discloses a gradually heightened arc induction device at the tunnel entrance, referring to Figure 1-2 , including a plurality of arc induction plates 1 arranged on both sides of the ground at the tunnel entrance and gradually increasing in height along the tunnel entrance direction, a supporting mechanism installed at the bottom of the plurality of arc induction plates 1, and an adjusting mechanism installed between the arc induction plates 1 and used to adjust the height and angle of the arc induction plates 1 to adapt to different tunnel entrance environments. The height and length of the plurality of arc induction plates 1 gradually increase along the tunnel entrance direction to form a gradually increasing arc structure, which has a visual induction effect on the driver at the tunnel entrance section, so that the driver has the feeling of entering the tunnel in advance.

[0024] Reference Figure 1-2 The supporting mechanism includes a bottom plate 2 installed on the ground at the tunnel entrance, and a plurality of mounting holes 21 opened on both sides of the bottom plate 2. People can use bolts to pass through the mounting holes 21 to fix the bottom plate 2 on both sides of the ground at the tunnel entrance.

[0025] Reference Figure 1-2 The fixed sleeve rod 3 is fixedly arranged on the top of the bottom plate 2, and a plurality of reinforcing plates 22 are fixedly arranged between the top of the bottom plate 2 and the outer wall of the bottom end of the fixed sleeve rod 3. The bottom plate 2 can support and fix the fixed sleeve rod 3, and the reinforcing plates 22 can improve the connection strength between the bottom plate 2 and the fixed sleeve rod 3, thereby strengthening the bottom end of the fixed sleeve rod 3.

[0026] Reference Figure 1-2The adjustment mechanism includes a fixed sleeve rod 3 arranged at the top of the supporting mechanism, and a threaded rod 31 threadedly arranged in the top of the fixed sleeve rod 3. The arc induction plate 1 is fixedly arranged at the top of the threaded rod 31. A working groove 32 is opened in the fixed sleeve rod 3. The threaded rod 31 is threadedly connected to the top of the working groove 32 of the fixed sleeve rod 3. The fixed sleeve rod 3 can support and limit the threaded rod 31 through the working groove 32, and the rotation of the threaded rod 31 will drive the arc induction plate 1 to rotate and move up and down on the fixed sleeve rod 3, so as to adjust the height and induction angle of the arc induction device.

[0027] Reference Figure 2-4 A fixing mechanism is provided in the fixing sleeve rod 3 for self-locking and fixing the threaded rod 31 to prevent the arc-shaped induction plate 1 from rotating and rising and falling under the push of the airflow of the vehicle. The fixing mechanism includes a self-locking rod 4 fixedly arranged at the bottom end of the threaded rod 31, a plurality of annular grooves 41 provided on the outer wall of the self-locking rod 4, and a plurality of fixing blocks 42 movably arranged in the fixing sleeve rod 3 and cooperatedly inserted in the annular grooves 41. A connecting plate 44 is fixedly arranged between the plurality of fixing blocks 42. A plurality of springs 43 are fixedly arranged between the side of the connecting plate 44 away from the fixing block 42 and the working groove 32 of the fixing sleeve rod 3. The connecting plate 44 can connect the plurality of fixing blocks 42. The spring 43 presses the fixing block 42 toward the self-locking rod 4 under the elastic force.

[0028] Reference Figure 2-4 A square rod 45 is fixedly provided in the middle part of one side of the connecting plate 44 away from the fixed block 42, which penetrates and extends to the outside of the fixed sleeve rod 3. A limiting ring 47 for further supporting and limiting the other rod 45 is fixedly provided in the working groove 32 of the fixed sleeve rod 3. The square rod 45 can support and limit the connecting plate 44 and the fixed block 42. The limiting ring 47 is a square ring, which can limit and support the other rod 45, so that the limiting ring 47, the connecting plate 44 and the fixed block 42 can only move laterally.

[0029] Under the elastic force of the spring 43, the fixing block 42 will be inserted into the corresponding annular groove 41, and cooperate with the limiting of the square rod 45 and other components to lock the height of the self-locking rod 4 and the threaded rod 31. Since the thread of the conventional threaded rod 31 is oblique, it will be accompanied by lifting and lowering movement when rotating, so that the rotation of the threaded rod 31 can be reversely locked to self-lock and fix the threaded rod 31, so that the arc-shaped induction plate 1 on the top of the threaded rod 31 cannot be rotated and lifted when pushed by the airflow of the vehicle.

[0030] Reference Figure 2-4 A grip ring 46 for people to hold is fixed at one end of the square rod 45. People can hold the grip ring 46 and pull the square rod 45 toward the outside of the fixed sleeve rod 3, thereby pulling the fixing block 42 away from the annular groove 41, so that the threaded rod 31 is released from self-locking and fixation, making it convenient for people to adjust the height and induction angle of the arc induction device by rotating the threaded rod 31.

[0031] The implementation principle of a gradually heightened arc-shaped induction device at a tunnel entrance of the utility model embodiment is as follows:

[0032] When in use, the height and length of the plurality of arc-shaped guide plates 1 gradually increase along the tunnel entrance direction, thereby forming a gradually increasing arc-shaped structure, which has a visual guidance effect on the driver at the tunnel entrance section, making the driver feel like entering the tunnel in advance;

[0033] When people adjust the height and induction angle of the arc induction device in real time according to the specific environment of the tunnel entrance, people can hold the grip ring 46 and pull the square rod 45 toward the outside of the fixed sleeve rod 3, so as to pull the fixed block 42 away from the annular groove 41, so that the threaded rod 31 is released from self-locking and fixation;

[0034] Then people can rotate the threaded rod 31 to drive the arc induction plate 1 to rotate and move up and down on the fixed sleeve rod 3, so as to flexibly adjust the height and induction angle of the arc induction device;

[0035] After adjustment, people can loosen the grip ring 46, so that the fixing block 42 is inserted into the corresponding annular groove 41 under the elastic force of the spring 43, and cooperate with the limiting of the square rod 45 and other components to self-lock and fix the self-locking rod 4 and the threaded rod 31, so that the arc-shaped induction plate 1 on the top of the threaded rod 31 cannot be rotated and raised and lowered under the push of the vehicle's airflow, thereby ensuring the safe induction effect of the arc-shaped induction device.

[0036] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gradually heightened arc induction device at a tunnel entrance, comprising a plurality of arc induction plates (1) arranged on both sides of the ground at the tunnel entrance and gradually increasing in height along the tunnel entrance direction, a support mechanism installed at the bottom of the plurality of arc induction plates (1), and an adjustment mechanism installed between the arc induction plates (1) and used to adjust the height and angle of the arc induction plates (1) to adapt to different tunnel entrance environments, characterized in that: The adjustment mechanism comprises a fixed sleeve rod (3) arranged at the top of the support mechanism, and a threaded rod (31) threadedly arranged in the top end of the fixed sleeve rod (3); the arc-shaped induction plate (1) is fixedly arranged at the top end of the threaded rod (31); and a fixing mechanism is provided in the fixed sleeve rod (3) for self-locking the threaded rod (31) to prevent the arc-shaped induction plate (1) from rotating and rising and falling under the impetus of the airflow of the vehicle.

2. The gradually heightened arc induction device at the tunnel entrance according to claim 1 is characterized by: The support mechanism comprises a bottom plate (2) installed on the ground at the tunnel entrance, and a plurality of installation holes (21) provided on both sides of the bottom plate (2).

3. The gradually heightened arc induction device at the tunnel entrance according to claim 2 is characterized by: The fixed sleeve rod (3) is fixedly arranged on the top of the bottom plate (2), and a plurality of reinforcing plates (22) are fixedly arranged between the top of the bottom plate (2) and the outer wall of the bottom end of the fixed sleeve rod (3).

4. The gradually heightened arc induction device at the tunnel entrance according to claim 1 is characterized by: A working groove (32) is provided in the fixed sleeve rod (3), and the threaded rod (31) is threadedly connected to the top of the working groove (32) of the fixed sleeve rod (3).

5. The gradually heightened arc induction device at the tunnel entrance according to claim 4 is characterized by: The fixing mechanism comprises a self-locking rod (4) fixedly arranged at the bottom end of the threaded rod (31), a plurality of annular grooves (41) formed on the outer wall of the self-locking rod (4), and a plurality of fixing blocks (42) movably arranged in the fixing sleeve rod (3) and fittingly inserted into the annular grooves (41).

6. The gradually heightened arc-shaped induction device at the tunnel entrance according to claim 5 is characterized in that: A connecting plate (44) is fixedly arranged between the plurality of fixing blocks (42), and a plurality of springs (43) are fixedly arranged between a side of the connecting plate (44) facing away from the fixing block (42) and a working groove (32) of the fixing sleeve rod (3).

7. The gradually heightened arc induction device at the tunnel entrance according to claim 6 is characterized by: A square rod (45) is fixedly provided at the middle of one side of the connecting plate (44) away from the fixing block (42), the square rod (45) penetrating through and extending to the outside of the fixing sleeve rod (3), and a grip ring (46) for people to hold is fixedly provided at one end of the square rod (45).

8. The gradually heightened arc-shaped induction device at the tunnel entrance according to claim 7 is characterized in that: A limiting ring (47) for further supporting and limiting the opposing rod (45) is fixedly provided in the working groove (32) of the fixed sleeve rod (3).

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