Road construction warning device

Abstract

The invention relates to the technical field of warning devices, and discloses a road construction warning device which solves the problem that an existing warning device is poor in use stability. The road construction warning device comprises a supporting base, a supporting stand column is arranged at the top end of the supporting base in a penetrating mode, a circular mounting inner groove is formed in the top end of the interior of the supporting base, and a circular through groove is formed in the top end of the supporting base; a buffering mechanism is movably arranged in the circular mounting inner groove, a clutch limiting mechanism is arranged in the middle of the bottom end in the circular mounting inner groove, a sealing mechanism is arranged at the bottom end of the outer surface of the supporting stand column, the top end of the outer surface of the supporting stand column is sleeved with a supporting mechanism, a supporting frame is arranged on one side of the supporting mechanism, and a warning board is rotationally arranged in the supporting frame. The warning board is rotationally connected with the supporting frame through a movable rotating shaft, a battery and a wireless intelligent controller are arranged on one side of the interior of the supporting base, and a water cooling mechanism is arranged between the warning board and the supporting base; through the warning device, the overall stability can be improved, and the warning effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of warning devices, and in particular relates to a road construction warning device. Background Art

[0002] During road construction, it is necessary to install warning devices in the construction area to improve the safety of passing vehicles and the safety of the construction area. Temporary warning devices are generally placed on the ground and are not fixed to the ground. In order to improve the warning effect, the identification surface of the warning sign is generally a large flat plate. In actual work, it is found that when encountering strong winds, due to the large flat plate area of ​​the warning sign itself, in strong winds, it is easy to cause the warning sign to move or fall over, affecting the warning effect. Moreover, when a large truck passes by the warning device at a fast speed, it will also cause the warning device to move or fall over, resulting in poor use effect. Therefore, the present application proposes a road construction warning device. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a road construction warning device, which effectively solves the problem of poor stability in use of the prior warning device.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a road construction warning device, comprising a support base, a support column is interspersed in the middle position of the top end of the support base, a circular installation inner groove is provided at the top end inside the support base, a circular through groove connected with the circular installation inner groove is provided at the middle position of the top end of the support base, a buffer mechanism fixedly connected to the support column is movably provided inside the circular installation inner groove, a clutch limit mechanism connected with the buffer mechanism is provided at the middle position of the bottom end of the circular installation inner groove, a sealing mechanism located at the top of the support base is fixedly provided at the bottom end of the outer surface of the support column, a support mechanism is sleeved at the top end of the outer surface of the support column, a support frame is fixedly provided on one side of the support mechanism, a warning sign is rotatably provided inside the support frame, the warning sign and the support frame are rotatably connected via a movable rotating shaft, a battery and a wireless intelligent controller are fixedly provided on one side inside the support base, and a water cooling mechanism is provided between the warning sign and the support base;

[0005] The buffer mechanism is composed of a supporting disc, a plurality of universal ball bearings and a plurality of tension springs. The supporting disc is located inside the circular mounting inner groove and is fixedly connected to the bottom end of the supporting column. One end of the tension spring is fixedly connected to the arc-shaped outer surface of the supporting disc, and the other end of the tension spring is fixedly connected to the inner side wall of the circular mounting inner groove. The universal ball bearing is connected to the sides of the top and bottom ends of the supporting disc.

[0006] The clutch limit mechanism is composed of an electromagnet, a permanent magnet, a friction plate 1, a friction plate 2 and a plurality of limit support columns 1. The electromagnet and the limit support column 1 are both fixedly connected to the bottom end of the inner circular mounting groove. The permanent magnet is slidably sleeved on the limit support column 1 and is located on the top of the electromagnet. The friction plate 1 is fixedly connected to the top of the permanent magnet, and the friction plate 2 is fixedly connected to the middle position of the bottom end of the support disc.

[0007] The supporting mechanism is composed of a supporting sleeve, a rotating supporting sleeve, a limiting torsion spring, an annular electromagnet, an annular permanent magnet, a friction ring 1, a friction ring 2 and a plurality of limiting support columns 2. The supporting sleeve is sleeved on the supporting column and fixedly connected thereto, the rotating supporting sleeve is sleeved on the supporting column and rotatably connected thereto, the limiting torsion spring is fixedly connected between the rotating supporting sleeve and the supporting column, the annular electromagnet and the limiting support column 2 are both fixedly connected to the inside of the supporting sleeve, the annular permanent magnet is slidably sleeved on the limiting support column 2 and is located at the top of the annular electromagnet, and the friction ring 2 is fixedly connected to the bottom end of the rotating supporting sleeve.

[0008] Preferably, the rotating support sleeve is rotatably connected to the support column and the support sleeve via bearings.

[0009] Preferably, the diameter of the supporting disc is smaller than the inner diameter of the circular mounting inner groove, and the diameter of the supporting disc is larger than the inner diameter of the circular through groove.

[0010] Preferably, a plurality of narrow-edge reflective strips are fixedly provided at the middle position of the outer surface of the supporting column.

[0011] Preferably, a solar panel is fixedly mounted on the top of the support column.

[0012] Preferably, guide indicator lights and a plurality of flashing warning lights are fixedly provided on both sides of the warning sign.

[0013] Preferably, the sealing mechanism is composed of a mounting sleeve and a sealing cover, the mounting sleeve is connected to the supporting column via a locking bolt, and the sealing cover is fixedly connected to the bottom end of the mounting sleeve.

[0014] Preferably, the sealing cover is composed of a metal cover body, a plurality of universal ball bearings and a sealing gasket. The universal ball bearings are rotatably connected to the side of the bottom end of the metal cover body and fit with the top surface of the support base. The sealing gasket is fixedly connected to the side of the bottom end of the metal cover body. A plurality of annular sealing ribs are fixedly arranged at the bottom end of the sealing gasket.

[0015] Preferably, a water storage tank is provided at the bottom end of the support base, and two water inlet and outlet pipes connected to the water storage tank are fixedly provided on the side of the support base.

[0016] Preferably, the water cooling mechanism is composed of a water pump, a water suction pipe, a soft and hard combination water inlet pipe, a soft and hard combination water return pipe and a cooling metal plate. The water pump is fixedly connected to the side inside the support base and is connected to the water storage tank through the water suction pipe. The cooling metal plate is fixedly connected to the inside of the warning sign. The soft and hard combination water inlet pipe and the soft and hard combination water return pipe are both inserted into the supporting columns and fixedly connected thereto. The soft and hard combination water inlet pipe is connected between the water pump and the cooling metal plate, and the soft and hard combination water return pipe is connected between the cooling metal plate and the water storage tank. A water cooling flow channel connected to the soft and hard combination water inlet pipe and the soft and hard combination water return pipe is opened inside the cooling metal plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) During operation, by setting a buffer mechanism composed of a support disc, a plurality of universal ball bearings and a plurality of tension springs, the mobility of the support column can be improved, and the support column has a displacement function in windy weather to prevent the entire device from tipping over. By setting a clutch limit mechanism composed of an electromagnet, a permanent magnet, a friction plate 1, a friction plate 2 and a plurality of limit support columns, the buffer mechanism can be locked in breeze weather, thereby locking the support column to prevent the support column from swinging slightly due to the breeze, thereby improving the stability of the support column.

[0019] (2) By rotating the warning sign and the support frame through a movable shaft, the mobility of the warning sign can be improved. When it is windy or a large truck passes by, the warning sign can be swung vertically to reduce wind resistance. By providing a support mechanism consisting of a support sleeve, a rotating support sleeve, a limit torsion spring, an annular electromagnet, an annular permanent magnet, a friction ring 1, a friction ring 2 and a plurality of limit support columns 2, the warning sign can be swung horizontally to reduce wind resistance when it is windy or a large truck passes by, and the rotating support sleeve can be locked or unlocked according to the wind force;

[0020] (3) By providing a water storage tank and a water cooling mechanism consisting of a water pump, a water pump pipe, a soft and hard combined water inlet pipe, a soft and hard combined water return pipe and a cooling metal plate, it is possible to dissipate heat and cool the inside of the warning sign, thereby preventing the warning light and flashing light on the warning sign from operating at too high a temperature and affecting their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0022] In the attached picture:

[0023] Figure 1 This is a schematic diagram of the structure of the road construction warning device of the present invention;

[0024] Figure 2 It is a cross-sectional view of the road construction warning device of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the buffer mechanism of the present invention;

[0026] Figure 4 For the present invention Figure 2 A partial enlarged view of the middle A;

[0027] Figure 5 It is a schematic diagram of the connection structure between the support mechanism and the support column of the present invention;

[0028] Figure 6 It is a schematic diagram of the sealing mechanism structure of the present invention;

[0029] Figure 7 For the present invention Figure 6 A partial enlarged view of point B in the middle;

[0030] Figure 8 It is a schematic diagram of the structure of the water cooling mechanism of the present invention;

[0031] In the figure: 1. Support base; 2. Support column; 3. Circular mounting inner groove; 4. Circular through groove; 5. Buffer mechanism; 6. Clutch limit mechanism; 7. Sealing mechanism; 8. Support mechanism; 9. Support frame; 10. Warning sign; 11. Movable shaft; 12. Battery; 13. Wireless intelligent controller; 14. Water cooling mechanism; 15. Support disc; 16. Universal ball bearing 1; 17. Tension spring; 18. Electromagnet; 19. Permanent magnet; 20. Friction plate 1; 21. Friction plate 2; 22. Limit support column 1; 23. Support sleeve; 24. Rotating support sleeve; 25. Limit torsion spring; 26. Ring electromagnet ; 27. Annular permanent magnet; 28. Friction ring one; 29. ​​Friction ring two; 30. Limit support column two; 31. Bearing; 32. Narrow reflective strip; 33. Solar panel; 34. Guide indicator light; 35. Flashing warning light; 36. Mounting sleeve; 37. Sealing cover; 38. Locking bolt; 39. Metal cover; 40. Universal ball two; 41. Sealing gasket; 42. Annular sealing rib; 43. Water storage tank; 44. Inlet and outlet pipes; 45. Water pump; 46. Pumping pipe; 47. Soft and hard combined water inlet pipe; 48. Soft and hard combined water return pipe; 49. Cooling metal plate; 50. Water cooling channel. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Embodiment 1, by Figures 1 to 7 The present invention provides a road construction warning device, comprising a support base 1, a support column 2 is interspersed in the middle position of the top of the support base 1, a circular installation inner groove 3 is provided at the top of the support base 1, a circular through groove 4 connected with the circular installation inner groove 3 is provided in the middle position of the top of the support base 1, a buffer mechanism 5 fixedly connected to the support column 2 is movably provided inside the circular installation inner groove 3, a clutch limit mechanism 6 matched with the buffer mechanism 5 is provided at the middle position of the bottom end of the circular installation inner groove 3, a sealing mechanism 7 located at the top of the support base 1 is fixedly provided at the bottom end of the outer surface of the support column 2, a support mechanism 8 is sleeved on the top of the outer surface of the support column 2, a support frame 9 is fixedly provided on one side of the support mechanism 8, a warning sign 10 is rotatably provided inside the support frame 9, the warning sign 10 is rotatably connected to the support frame 9 through a movable rotating shaft 11, a battery 12 and a wireless intelligent controller 13 are fixedly provided on one side of the support base 1, and a water cooling mechanism 14 is provided between the warning sign 10 and the support base 1;

[0034] The buffer mechanism 5 can improve the mobility of the support column 2, the clutch limit mechanism 6 can lock and limit the buffer mechanism 5 to improve stability, the sealing mechanism 7 can improve the sealing of the connection between the support column 2 and the support base 1, the support mechanism 8 can support the support frame 9 and control the support frame 9 to be in an active state or a locked state, and the movable shaft 11 can improve the mobility of the warning sign 10, and can make the warning sign 10 swing vertically in windy weather or when a large vehicle passes by to reduce wind resistance;

[0035] The buffer mechanism 5 is composed of a supporting disc 15, a plurality of universal ball bearings 16 and a plurality of tension springs 17. The supporting disc 15 is located inside the circular mounting inner groove 3 and is fixedly connected to the bottom end of the supporting column 2. One end of the tension spring 17 is fixedly connected to the arc-shaped outer surface of the supporting disc 15, and the other end of the tension spring 17 is fixedly connected to the inner side wall of the circular mounting inner groove 3. The universal ball bearings 16 are connected to the sides of the top and bottom ends of the supporting disc 15.

[0036] In windy weather, the support disc 15 is movably connected to the support base 1, and the support disc 15 is supported and limited by the universal ball 16 to improve the mobility of the support disc 15. The tension spring 17 pulls and limits the support disc 15, so that the support disc 15 can automatically reset, thereby improving the mobility of the support column 2 and preventing the entire device from moving or tipping over.

[0037] The clutch limit mechanism 6 is composed of an electromagnet 18, a permanent magnet 19, a friction plate 1 20, a friction plate 21 and a plurality of limit support columns 1 22. The electromagnet 18 and the limit support column 1 22 are both fixedly connected to the bottom end of the inner circular mounting groove 3. The permanent magnet 19 is slidably sleeved on the limit support column 1 22 and is located at the top of the electromagnet 18. The friction plate 1 20 is fixedly connected to the top of the permanent magnet 19. The friction plate 21 is fixedly connected to the middle position of the bottom end of the support disc 15.

[0038] In light wind weather, in order to improve the stability of the support column 2 and avoid shaking, the electromagnet 18 is energized, and the electromagnet 18 generates the same magnetic pole as the permanent magnet 19, thereby pushing the permanent magnet 19 to move upward, and the permanent magnet 19 drives the friction plate 1 20 to move upward, and the friction plate 1 20 fits with the friction plate 2 21 to achieve friction limiting, thereby limiting the support disc 15 and preventing the support disc 15 from shaking;

[0039] The support mechanism 8 is composed of a support sleeve 23, a rotating support sleeve 24, a limiting torsion spring 25, an annular electromagnet 26, an annular permanent magnet 27, a friction ring 1 28, a friction ring 29 and a plurality of limiting support columns 2 30. The support sleeve 23 is sleeved on the support column 2 and fixedly connected thereto, the rotating support sleeve 24 is sleeved on the support column 2 and rotatably connected thereto, the limiting torsion spring 25 is fixedly connected between the rotating support sleeve 24 and the support column 2, the annular electromagnet 26 and the limiting support column 2 30 are both fixedly connected to the inside of the support sleeve 23, the annular permanent magnet 27 is slidably sleeved on the limiting support column 2 30 and is located at the top of the annular electromagnet 26, and the friction ring 2 29 is fixedly connected to the bottom end of the rotating support sleeve 24;

[0040] In windy weather, the limit torsion spring 25 limits the rotation support sleeve 24 and makes the rotation support sleeve 24 active, so that the warning sign 10 can swing horizontally in a square shape. In breeze weather, in order to improve the horizontal stability of the warning sign 10, the annular electromagnet 26 is energized, and the annular electromagnet 26 generates the same magnetic pole as the annular permanent magnet 27, thereby driving the annular permanent magnet 27 to move upward, and the annular permanent magnet 27 drives the friction ring 1 28 to move upward, and the friction ring 1 28 fits with the friction ring 2 29 to achieve friction limiting, thereby locking the rotation support sleeve 24 and improving stability.

[0041] The rotating support sleeve 24 is rotatably connected to the support column 2 and the support sleeve 23 via a bearing 31. The diameter of the support disc 15 is smaller than the inner diameter of the circular mounting inner groove 3, and the diameter of the support disc 15 is larger than the inner diameter of the circular through groove 4.

[0042] The bearing 31 can limit the rotation support sleeve 24 and improve the mobility of the rotation support sleeve 24. The diameter of the support disc 15 is smaller than the inner diameter of the circular installation inner groove 3, and the diameter of the support disc 15 is larger than the inner diameter of the circular through groove 4, so that the support disc 15 can be stably installed to avoid separation from the support base 1, and at the same time, the support disc 15 has space for movement;

[0043] A plurality of narrow reflective strips 32 are fixedly arranged in the middle of the outer surface of the support column 2, a solar panel 33 is fixedly arranged at the top of the support column 2, and a guide indicator light 34 and a plurality of flashing warning lights 35 are fixedly arranged on both sides of the warning sign 10;

[0044] The narrow reflective strip 32 can improve the warning effect and the wind resistance effect, the solar panel 33 can realize solar power generation, and the combined design of the guide indicator light 34 and the flashing warning light 35 can improve the warning effect;

[0045] The sealing mechanism 7 is composed of a mounting sleeve 36 and a sealing cover 37. The mounting sleeve 36 is connected to the support column 2 by a locking bolt 38. The sealing cover 37 is fixedly connected to the bottom end of the mounting sleeve 36. The sealing cover 37 is composed of a metal cover body 39, a plurality of universal ball bearings 40 and a sealing gasket 41. The universal ball bearings 40 are rotatably connected to the side of the bottom end of the metal cover body 39 and fit with the top surface of the support base 1. The sealing gasket 41 is fixedly connected to the side of the bottom end of the metal cover body 39. The bottom end of the sealing gasket 41 is fixedly provided with a plurality of annular sealing ribs 42.

[0046] During the movement of the support column 2, the sealing cover 37 is synchronously driven to move, and the friction between the sealing cover 37 and the support base 1 is reduced by the universal ball 40. The connection sealing is improved by the sealing gasket 41 and the annular sealing rib 42 to prevent dust, stones and other impurities from entering the interior of the support base 1.

[0047] Embodiment 2, based on embodiment 1, Figure 1 , Figure 2 and Figure 8It is given that a water tank 43 is provided at the bottom end of the support base 1, and two water inlet and outlet pipes 44 connected to the water tank 43 are fixedly provided on the side of the support base 1. The water cooling mechanism 14 is composed of a water pump 45, a water pumping pipe 46, a soft and hard combined water inlet pipe 47, a soft and hard combined water return pipe 48 and a cooling metal plate 49. The water pump 45 is fixedly connected to the side of the support base 1 and is connected to the water tank 43 through the water pumping pipe 46. The cooling metal plate 49 is fixedly connected to the inside of the warning sign 10. The soft and hard combined water inlet pipe 47 and the soft and hard combined water return pipe 48 are both inserted into the support column 2 and fixedly connected thereto. The soft and hard combined water inlet pipe 47 is connected between the water pump 45 and the cooling metal plate 49, and the soft and hard combined water return pipe 48 is connected between the cooling metal plate 49 and the water tank 43. A water cooling flow channel 50 connected to the soft and hard combined water inlet pipe 47 and the soft and hard combined water return pipe 48 is provided inside the cooling metal plate 49.

[0048] The guide indicator light 34 and the flashing warning light 35 on the warning sign 10 will generate a lot of heat during their working process. At this time, the water cooling mechanism 14 is used to dissipate heat and cool down. The water inside the water storage tank 43 is extracted through the water pump 45 and the water pumping pipe 46. The soft and hard combined water inlet pipe 47 supplies water to the cooling metal plate 49. The water enters the water cooling channel 50 to achieve water cooling, thereby cooling the inside of the warning sign 10. The water is then returned through the soft and hard combined return pipe 48 to achieve circulation. The soft and hard combination design of the soft and hard combined water inlet pipe 47 and the soft and hard combined return pipe 48 can provide it with a certain amount of room for movement.

[0049] During operation, by setting a buffer mechanism composed of a support disc, a plurality of universal ball bearings and a plurality of tension springs, the activity of the support column can be improved, and it has a displacement function in windy weather to avoid the entire device from tipping over. By setting a clutch limit mechanism composed of an electromagnet, a permanent magnet, a friction plate 1, a friction plate 2 and a plurality of limit support columns, the buffer mechanism can be locked in breezy weather, and then the support column can be locked to avoid the support column from swinging slightly due to the breeze, thereby improving the stability of the support column. By rotating the warning sign and the support frame through a movable shaft, the activity of the warning sign can be improved, and it can be put into use in windy weather or when a large truck passes by. The warning sign is made to swing vertically to reduce wind resistance. By setting a support mechanism consisting of a support sleeve, a rotating support sleeve, a limit torsion spring, an annular electromagnet, an annular permanent magnet, a friction ring 1, a friction ring 2 and a plurality of limit support columns 2, the warning sign can be made to swing horizontally to reduce wind resistance in windy weather or when a large truck passes by, and the rotating support sleeve can be locked or unlocked according to the wind force. By setting a water storage tank and a water cooling mechanism consisting of a water pump, a water suction pipe, a soft and hard combined water inlet pipe, a soft and hard combined water return pipe and a cooling metal plate, the inside of the warning sign can be dissipated and cooled to avoid excessive operating temperatures of the warning light and the flashing light on the warning sign that affect the service life.

Claims

1. A road construction warning device, comprising a support base (1), characterized in that: A support column (2) is interspersed in the middle position of the top of the support base (1); a circular mounting inner groove (3) is provided at the top of the support base (1); a circular through groove (4) connected to the circular mounting inner groove (3) is provided at the middle position of the top of the support base (1); a buffer mechanism (5) fixedly connected to the support column (2) is movably provided inside the circular mounting inner groove (3); a clutch limit mechanism (6) connected to the buffer mechanism (5) is provided at the middle position of the bottom end of the circular mounting inner groove (3); the bottom end of the outer surface of the support column (2) is provided with a plurality of A sealing mechanism (7) is fixedly arranged at the top of the support base (1); a support mechanism (8) is sleeved on the top of the outer surface of the support column (2); a support frame (9) is fixedly arranged on one side of the support mechanism (8); a warning sign (10) is rotatably arranged inside the support frame (9); the warning sign (10) and the support frame (9) are rotatably connected via a movable rotating shaft (11); a battery (12) and a wireless intelligent controller (13) are fixedly arranged on one side of the interior of the support base (1); and a water cooling mechanism (14) is arranged between the warning sign (10) and the support base (1); The buffer mechanism (5) is composed of a supporting disc (15), a plurality of universal ball bearings (16) and a plurality of tension springs (17); the supporting disc (15) is located inside the circular mounting inner groove (3) and is fixedly connected to the bottom end of the supporting column (2); one end of the tension spring (17) is fixedly connected to the arc-shaped outer surface of the supporting disc (15); the other end of the tension spring (17) is fixedly connected to the inner side wall of the circular mounting inner groove (3); and the universal ball bearings (16) are connected to the sides of the top and bottom ends of the supporting disc (15); The clutch limit mechanism (6) is composed of an electromagnet (18), a permanent magnet (19), a friction plate 1 (20), a friction plate 2 (21) and a plurality of limit support columns 1 (22). The electromagnet (18) and the limit support column 1 (22) are both fixedly connected to the bottom end of the circular mounting inner groove (3). The permanent magnet (19) is slidably sleeved on the limit support column 1 (22) and is located on the top of the electromagnet (18). The friction plate 1 (20) is fixedly connected to the top of the permanent magnet (19). The friction plate 2 (21) is fixedly connected to the middle position of the bottom end of the support disc (15). The support mechanism (8) is composed of a support sleeve (23), a rotating support sleeve (24), a limiting torsion spring (25), an annular electromagnet (26), an annular permanent magnet (27), a friction ring 1 (28), a friction ring 2 (29) and a plurality of limiting support columns 2 (30). The support sleeve (23) is sleeved on the support column (2) and fixedly connected thereto. The rotating support sleeve (24) is sleeved on the support column (2) and rotatably connected thereto. The limiting torsion spring (25) is fixedly connected between the rotating support sleeve (24) and the support column (2). The annular electromagnet (26) and the limiting support column 2 (30) are both fixedly connected inside the support sleeve (23). The annular permanent magnet (27) is slidably sleeved on the limiting support column 2 (30) and is located at the top end of the annular electromagnet (26). The friction ring 2 (29) is fixedly connected to the bottom end of the rotating support sleeve (24).

2. A road construction warning device according to claim 1, characterized in that: The rotating support sleeve (24) is rotatably connected to the support column (2) and the support sleeve (23) via a bearing (31).

3. A road construction warning device according to claim 1, characterized in that: The diameter of the supporting disc (15) is smaller than the inner diameter of the circular mounting inner groove (3), and the diameter of the supporting disc (15) is larger than the inner diameter of the circular through groove (4).

4. A road construction warning device according to claim 1, characterized in that: A plurality of narrow-edge reflective strips (32) are fixedly arranged at the middle position of the outer surface of the supporting column (2).

5. A road construction warning device according to claim 1, characterized in that: A solar power generation panel (33) is fixedly arranged on the top end of the support column (2).

6. A road construction warning device according to claim 1, characterized in that: Guiding indicator lights (34) and a plurality of flashing warning lights (35) are fixedly arranged on both sides of the warning sign (10).

7. A road construction warning device according to claim 1, characterized in that: The sealing mechanism (7) is composed of a mounting sleeve (36) and a sealing cover (37); the mounting sleeve (36) is connected to the supporting column (2) via a locking bolt (38); and the sealing cover (37) is fixedly connected to the bottom end of the mounting sleeve (36).

8. A road construction warning device according to claim 7, characterized in that: The sealing cover (37) is composed of a metal cover body (39), a plurality of universal ball bearings (40) and a sealing gasket (41); the universal ball bearings (40) are rotatably connected to the side edge of the bottom end of the metal cover body (39) and fit with the top surface of the support base (1); the sealing gasket (41) is fixedly connected to the side edge of the bottom end of the metal cover body (39); and a plurality of annular sealing ribs (42) are fixedly provided at the bottom end of the sealing gasket (41).

9. A road construction warning device according to claim 1, characterized in that: A water storage tank (43) is provided at the bottom end of the support base (1), and two water inlet and outlet pipes (44) in communication with the water storage tank (43) are fixedly provided on the side of the support base (1).

10. A road construction warning device according to claim 9, characterized in that: The water cooling mechanism (14) is composed of a water pump (45), a water pumping pipe (46), a soft and hard combined water inlet pipe (47), a soft and hard combined water return pipe (48) and a cooling metal plate (49); the water pump (45) is fixedly connected to the side of the inside of the support base (1) and is connected to the water storage tank (43) through the water pumping pipe (46); the cooling metal plate (49) is fixedly connected to the inside of the warning sign (10); the soft and hard combined water inlet pipe (47) and the soft and hard combined water return pipe (48) are connected to the cooling metal plate (49); The combined water return pipes (48) are inserted into the supporting columns (2) and fixedly connected thereto; the soft and hard combined water inlet pipes (47) are connected between the water pump (45) and the cooling metal plate (49); the soft and hard combined water return pipes (48) are connected between the cooling metal plate (49) and the water storage tank (43); and a water cooling channel (50) communicating with the soft and hard combined water inlet pipes (47) and the soft and hard combined water return pipes (48) is provided inside the cooling metal plate (49).

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