Road construction warning device for expressway

Abstract

The invention relates to the technical field of road construction warning, and discloses a highway road construction warning device which comprises a supporting frame, a fixing base is arranged on the supporting frame, the supporting frame comprises an annular chassis, a connecting rod is arranged on the annular chassis, a plurality of supporting columns are arranged on the connecting rod and connected with the fixing base, a supporting rod is arranged on the fixing base, and the supporting rod is connected with the annular chassis. A supporting rod is arranged on the fixing base, a sliding groove is formed in the supporting rod, a mounting base is arranged in the sliding groove in a sliding mode, a sliding mechanism for driving the mounting base to move up and down in a reciprocating mode is arranged on the fixing base, and a sliding block is arranged on the mounting base in a sliding mode in the circumferential direction. According to the warning device, the warning board is arranged on the main road and the branch road, so that rear running vehicles can also observe the warning board, the warning board is in a moving state all the time, attention of a driver is quickly aroused, the warning board can circularly move back and forth, and drivers on the main road and the branch road can observe the warning device.

Description

Technical Field

[0001] The present invention relates to the technical field of road construction warning, and specifically refers to a road construction warning device for highways. Background Art

[0002] When constructing a highway, in order to ensure the safety of construction and driving vehicles, the site will be controlled, including warning devices placed at the front, then conical barrels for guiding vehicle driving, and signs for lifting restrictions at the rear. The existing warning devices have a simple structure, mostly consisting of two hinged support rods, and the warning sign is placed on one of the support rods. When constructing a highway, the existing warning devices have the following problems: 1. Since it is on a highway, the vehicle speed is relatively fast, and there are multiple vehicles driving on one lane. Due to the fixed height of the warning sign, the warning sign will be blocked by the first vehicle, so subsequent vehicles cannot observe the warning device, which is likely to cause accidents. 2. Since the warning device is in a stationary state, drivers are likely to ignore the existence of the warning device. When they notice the warning device, it is difficult to brake due to the high vehicle speed, resulting in accidents. 3. For the position of a fork in the road, multiple warning devices need to be arranged to remind vehicles on the main line and branch roads. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a road construction warning device for highways.

[0004] To solve the above technical problem, the technical solution provided by the present invention is: A road construction warning device for highways, including a support frame, a fixed seat is provided on the support frame. The support frame includes an annular chassis, a connecting rod is provided on the annular chassis, a plurality of support columns are provided on the connecting rod, the support columns are connected to the fixed seat, a support rod is provided on the fixed seat, a chute is provided on the support rod, a mounting seat is slidably provided on the chute, a sliding mechanism for driving the mounting seat to reciprocate up and down is provided on the fixed seat, a slider is slidably provided on the mounting seat along the circumferential direction, a connecting plate is provided on the slider, a warning sign is provided on one side of the connecting plate, and a driving mechanism for driving the slider to intermittently reciprocate is provided on the mounting seat.

[0005] As an improvement, the sliding mechanism includes extension plates arranged on both sides of the support rod. A first rotating shaft and a second rotating shaft are respectively rotatably arranged on the two extension plates. A support plate is arranged on the fixed seat. A driving shaft is rotatably arranged between the support plate and the support rod. A first gear is slidably arranged on the driving shaft. The rotation of the driving shaft can drive the first gear to rotate. A double-sided rack is arranged on the bottom surface of the mounting seat. One end of the first rotating shaft and the second rotating shaft are respectively provided with a second gear and a third gear. The second gear and the third gear are respectively meshed with one side of the double-sided rack. The other end of the first rotating shaft and the second rotating shaft are respectively provided with a first driving gear and a second driving gear. In the initial state, the first gear is meshed with the first driving gear. A moving mechanism for pushing the first gear to slide is arranged on the fixed seat.

[0006] As an improvement, the moving mechanism includes a first ring arranged on one side of the first gear. A first spring is arranged between the first ring and the support plate. A second ring is rotatably arranged on the other side of the first gear. A baffle is arranged on the second ring. A plug is movably inserted on the fixed seat and a tension spring is arranged between the plug and the bottom surface of the fixed seat. An arc surface for cooperating with the baffle is arranged on one side of the plug. The baffle abuts against the other side of the plug. A transmission gear is rotatably arranged on the bottom surface of the fixed seat. A second rack for meshing with the transmission gear is arranged on one side of the plug. A third rack for meshing with the transmission gear is arranged at the end of the double-sided rack. An arc-shaped driving block for pushing the first gear to slide is arranged on the bottom surface of the mounting seat.

[0007] As an improvement, the driving mechanism includes a groove on the mounting seat. An inner gear ring one is rotatably arranged at the bottom of the groove. A mounting cover for cooperating with the groove is arranged on the mounting seat. An inner gear ring two is rotatably arranged on the bottom surface of the mounting cover. A transmission mechanism for driving the inner gear ring two to rotate when the mounting seat moves is arranged on the mounting seat. A gear ring is arranged on the bottom surface of the inner gear ring. A fourth gear for meshing with the gear ring is rotatably arranged in the groove. The other side of the fourth gear is meshed with the inner gear ring one. A first block and a second block are respectively movably inserted on the inner gear ring one and the bottom surface of the inner gear ring two. A first return spring is arranged between the first block and the inner gear ring one. A second return spring is arranged between the second block and the inner gear ring two. A clamping plate is arranged on one side of the slider. Inclined surfaces for cooperating with the clamping plate are arranged on the first block and the second block.

[0008] As an improvement, the transmission mechanism includes a fourth rack arranged in the sliding groove. A fifth gear for meshing with the fourth rack is rotatably arranged on the mounting seat. A first bevel gear is coaxially arranged with the fifth gear. A second bevel gear for meshing with the first bevel gear is rotatably arranged on the mounting seat. A sixth gear is coaxially arranged with the second bevel gear. The sixth gear is meshed with the inner gear ring two.

[0009] As an improvement, a ratchet is arranged on the first rotating shaft. A fixed shaft is arranged on the support rod. A pawl for cooperating with the ratchet is rotatably arranged on the fixed shaft. A torsion spring is arranged between the pawl and the fixed shaft. A driving rod is arranged on the pawl. A trigger rod for driving the driving rod to rotate is arranged on the second ring. One side of the trigger rod is an arc surface. A plug rod for cooperating with the driving rod is arranged on the bottom surface of the mounting seat.

[0010] As an improvement, a sliding hole communicating with the groove is provided on the mounting base. The slider is located in the sliding hole, the sliding hole is arc-shaped, a limiting block is provided on the slider, and a limiting groove cooperating with the limiting block is provided in the mounting base within the sliding hole.

[0011] The advantages of the present invention compared with the prior art are as follows: 1. By driving the mounting base to move up and down reciprocally through the sliding mechanism, the warning sign can be driven to move up and down reciprocally, which can not only enable the vehicles driving behind to observe the warning sign, but also keep the warning sign in a moving state all the time, so as to quickly attract the attention of the driver, and thus observe the warning sign in advance and complete the avoidance action; 2. By driving the slider to move reciprocally in the circumferential direction through the driving mechanism, the warning sign is driven to rotate back and forth, so that the drivers on the main line and the branch road can observe the warning sign, eliminating the need to arrange multiple warning devices, saving resources, and at the same time, the rotation of the warning sign can enable the driver to more easily observe the warning sign and reduce the occurrence of accidents; 3. By using one power source, the mounting base can be driven to move up and down while driving the warning sign to perform circular motion, thus saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a three-dimensional view of a road construction warning device for a highway according to the present invention Figure 1 .

[0013] Figure 2 is a three-dimensional view of a road construction warning device for a highway according to the present invention Figure 2 .

[0014] Figure 3 is a schematic structural view of a road construction warning device for a highway according to the present invention.

[0015] Figure 4 is a schematic view of the sliding mechanism of a road construction warning device for a highway according to the present invention.

[0016] Figure 5 is a schematic view of the moving mechanism of a road construction warning device for a highway according to the present invention.

[0017] Figure 6 is an exploded view of the driving mechanism of a road construction warning device for a highway according to the present invention.

[0018] Figure 7 is a sectional view of the driving mechanism of a road construction warning device for a highway according to the present invention.

[0019] Figure 8 is a schematic view of a partial structure of a road construction warning device for a highway according to the present invention.

[0020] Figure 9It is a sectional view of a road construction warning device for expressways according to the present invention.

[0021] Figure 10 It is a road construction warning device for expressways according to the present invention Figure 9 The enlarged view at position A in

[0022] Figure 11 It is a working schematic diagram of a road construction warning device for expressways according to the present invention.

[0023] As shown in the figure: 1. Support frame; 11. Ring-shaped chassis; 12. Connecting rod; 13. Support column; 2. Fixed seat; 3. Support rod; 31. Chute; 4. Mounting seat; 41. Slide hole; 42. Plug rod; 5. Sliding mechanism; 51. Extension plate; 52. Rotating shaft one; 53. Rotating shaft two; 54. Support plate; 55. Driving shaft; 56. Gear one; 57. Double-sided rack; 58. Gear two; 59. Gear three; 510. Ratchet; 511. Pawl; 512. Driving rod; 513. Trigger rod; 514. Driving gear one; 515. Driving gear two; 6. Slide block; 61. Connecting plate; 62. Warning sign; 7. Driving mechanism; 71. Groove; 72. Inner gear ring one; 73. Mounting cover; 74. Inner gear ring two; 75. Gear ring; 76. Gear four; 77. Block one; 78. Block two; 79. Card plate; 8. Moving mechanism; 81. Ring one; 82. Spring one; 83. Ring two; 84. Baffle; 85. Insert block; 86. Tension spring; 87. Transmission gear; 88. Rack two; 89. Rack three; 810. Arc-shaped driving block; 9. Transmission mechanism; 91. Rack four; 92. Gear five; 93. Bevel gear one; 94. Bevel gear two; 95. Gear six. Detailed implementation manners

[0024] The following further elaborates on the present invention with reference to the accompanying drawings.

[0025] Combined with the attached Figure 1 、 attached Figure 2 、 attached Figure 3 、 Figure 6 As shown in the figures, a road construction warning device for expressways includes a support frame 1. A fixed seat 2 is provided on the support frame 1. The support frame 1 includes a ring-shaped chassis 11. Connecting rods 12 are provided on the ring-shaped chassis 11. A plurality of counterweight blocks are provided on the connecting rods 12. A plurality of support columns 13 are provided on the connecting rods 12. The support columns 13 are connected to the fixed seat 2. A support rod 3 is provided on the fixed seat 2. A chute 31 is provided on the support rod 3. A mounting seat 4 is slidably provided on the chute 31. A sliding mechanism 5 for driving the mounting seat 4 to reciprocate up and down is provided on the fixed seat 2. A slide block 6 is slidably provided on the mounting seat 4 in the circumferential direction. A connecting plate 61 is provided on the slide block 6. A warning sign 62 is provided on one side of the connecting plate 61. A driving mechanism 7 for driving the slide block 6 to intermittently reciprocate is provided on the mounting seat 4.

[0026] Working principle of the present invention: Place the device at a designated position. Support the fixed seat 2 through the annular chassis 11 and the support column 13. The annular chassis 11 can make the whole more stable. The counterweight can prevent the warning sign from being blown by the wind. Drive the mounting seat 4 to reciprocate up and down through the sliding mechanism 5. The mounting seat 4 drives the warning sign 62 to reciprocate up and down. During the up and down movement of the warning sign 62, the vehicle behind can observe the vehicle in time and make an avoidance action. At the same time, the warning sign 62 is always in a moving state, making it easier for the driver to observe. Drive the slider 6 to slide in the circumferential direction through the driving mechanism 7. The slider 6 drives the warning sign 62 to slide in the circumferential direction. The warning sign 62 can slide within a certain angle and stop after sliding to one end, so that the drivers on the main line and the branch road can observe the warning sign 62. At the same time, the rotation of the warning sign 62 makes the overall movement amplitude larger, making it easier for the driver to observe the warning sign and reducing the occurrence of accidents.

[0027] Combined with attached Figure 2 、attached Figure 3 、attached Figure 4 、attached Figure 5 、attached Figure 10 As shown in

[0028] Working principle of the sliding mechanism 5: The motor drives the drive shaft 55 to rotate. The drive shaft 55 drives the gear one 56 to rotate. The gear one 56 drives the drive gear one 514 to rotate. The gear two 58 drives the double-sided rack 57 to move up. When the mounting seat 4 moves to a certain height, the moving mechanism 8 drives the gear one 56 to slide. The gear one 56 changes from meshing with the drive gear one 514 to meshing with the drive gear two 515. The gear one 56 rotates to drive the drive gear two 515 to rotate. The gear three 59 drives the double-sided rack 57 to move. The double-sided rack 57 drives the mounting seat 4 to move down. When moving a certain distance, the moving mechanism 8 pushes the gear one 56 to reset. The gear one 56 changes from meshing with the drive gear two 515 to meshing with the drive gear one 514, realizing the reciprocating up and down movement of the mounting seat 4.

[0029] Combined with the attached Figure 2 , attached Figure 3 , attached Figure 4 , attached Figure 5 , attached Figure 10 As shown, the moving mechanism 8 includes a first ring 81 rotatably arranged on one side of the first gear 56. A first spring 82 is provided between the first ring 81 and the support plate 54. A second ring 83 is rotatably arranged on the other side of the first gear 56. A baffle 84 is provided on the second ring 83. A plug 85 is movably inserted into the fixed seat 2 and a tension spring 86 is provided between the plug 85 and the bottom surface of the fixed seat 2. An arc surface cooperating with the baffle 84 is provided on one side of the plug 85. The baffle 84 abuts against the other side of the plug 85. A transmission gear 87 is rotatably arranged on the bottom surface of the fixed seat 2. A second rack 88 meshing with the transmission gear 87 is provided on one side of the plug 85. A third rack 89 meshing with the transmission gear 87 is provided at the end of the double-sided rack 57. An arc-shaped driving block 810 for pushing the first gear 56 to slide is provided on the bottom surface of the mounting seat 4.

[0030] Working principle of the moving mechanism 8: In the initial state, the first spring 82 is in a compressed state and the tension spring 86 is in a relaxed state. The motor drives the drive shaft 55 to rotate. The drive shaft 55 drives the first gear 56 to rotate. The first gear 56 drives the driving first gear 514 meshing therewith to rotate. The driving first gear 514 drives the coaxial second gear 58 to rotate. The second gear 58 drives the double-sided rack 57 to move upward. The double-sided rack 57 drives the mounting seat 4 to move upward. At this time, the third rack 89 on the double-sided rack 57 gradually approaches the transmission gear 87 and meshes with it. Then the third rack 89 moves upward to drive the transmission gear 87 to rotate. The transmission gear 87 rotates to drive the second rack 88 to move downward. The plug 85 moves downward. The tension spring 86 is stretched. The plug 85 no longer abuts against the baffle 84. The first spring 82 pushes the first ring 81 to move. The first ring 81 drives the first gear 56 to move towards the driving second gear 515. The first gear 56 meshes with the driving second gear 515. Then the first gear 56 drives the driving second gear 515 to rotate. The third gear 59 drives the double-sided rack 57 to move downward. The double-sided rack 57 drives the mounting seat 4 to move downward. At this time, the third rack 89 moves downward to drive the transmission gear 87 to rotate. The transmission gear 87 drives the second rack 88 to move upward. The plug 85 returns to the initial position. When the mounting seat 4 moves downward to a certain distance, the arc-shaped driving block 810 contacts the first gear 56. The arc-shaped driving block 810 moves downward to push the first gear 56 to move towards the driving first gear 514. The first spring 82 is compressed. The baffle 84 moves. When the first gear 56 is separated from the driving second gear 515, under the action of the gravity of the mounting seat 4, the mounting seat 4 continues to move downward. Under the action of the arc surface, the baffle 84 moves to push the plug 85 to move downward. The tension spring 86 is stretched. The baffle 84 returns to the initial position. The plug 85 is reset under the action of the tension spring 86. The baffle 84 abuts against the plug 85.

[0031] Combined with the attachedFigure 2 , attached Figure 3 , attached Figure 5 , attached Figure 6 , attached Figure 7 , attached Figure 9 As shown, the driving mechanism 7 includes a groove 71 on the mounting base 4. At the bottom of the groove 71, a first internal gear ring 72 is rotatably provided. On the mounting base 4, a mounting cover 73 is provided which cooperates with the groove 71. On the bottom surface of the mounting cover 73, a second internal gear ring 74 is rotatably provided. On the mounting base 4, a transmission mechanism 9 is provided which drives the second internal gear ring 74 to rotate when the mounting base 4 moves. On the bottom surface of the second internal gear ring 74, a gear ring 75 is provided. In the groove 71, a fourth gear 76 which meshes with the gear ring 75 is rotatably provided. The other side of the fourth gear 76 meshes with the first internal gear ring 72. On the first internal gear ring 72 and the bottom surface of the second internal gear ring 74, a first clamping block 77 and a second clamping block 78 are respectively movably inserted. Between the first clamping block 77 and the first internal gear ring 72, a first return spring is provided. Between the second clamping block 78 and the second internal gear ring 74, a second return spring is provided. On one side of the slider 6, a clamping plate 79 is provided. On the first clamping block 77 and the second clamping block 78, inclined surfaces which cooperate with the clamping plate 79 are provided.

[0032] Combined with attached Figure 2 , attached Figure 3 , attached Figure 6 As shown, on the mounting base 4, a sliding hole 41 which communicates with the groove 71 is provided. The slider 6 is located in the sliding hole 41. The sliding hole 41 is arc-shaped. On the slider 6, a limiting block is provided. On the mounting base 4 and inside the sliding hole 41, a limiting groove which cooperates with the limiting block is provided.

[0033] Working principle: In the initial state, the first return spring and the second return spring are in a relaxed state. The transmission mechanism 9 drives the second internal gear ring 74 to rotate. The gear ring 75 drives the fourth gear 76 to rotate. The fourth gear 76 drives the first internal gear ring 72 to rotate. At this time, the rotation directions of the first internal gear ring 72 and the second internal gear ring 74 are opposite. Then, the first clamping block 77 on the first internal gear ring 72 contacts the clamping plate 79 and drives the clamping plate 79 to move. When the clamping plate 79 can no longer move, that is, when the slider 6 abuts against the inner wall of one end of the sliding hole 41, the clamping plate 79 forces the first clamping block 77 to move downward through the inclined surface. The first return spring is compressed. When the first clamping block 77 slides past below the clamping plate 79, the first return spring pushes the first clamping block 77 to reset. At this time, the slider 6 moves from one end to the other end in the sliding hole 41. After the second internal gear ring 74 rotates a certain angle, the second clamping block 78 on it contacts the clamping plate 79 and drives the clamping plate 79 to move. When the clamping plate 79 can no longer move, the clamping plate 79 forces the second clamping block 78 to move upward through the inclined surface. The second return spring is compressed. When the second clamping block 78 moves away from the top surface of the clamping plate 79, the second return spring pushes the second clamping block 78 to reset. At this time, the intermittent reciprocating circular motion of the slider 6 is completed.

[0034] Combined with attached Figure 2 , attached Figure 3 , attached Figure 5 , attachedFigure 6 , as shown in the appended Figure 7 Figure, the transmission mechanism 9 includes a rack four 91 disposed in the chute 31. A gear five 92 meshing with the rack four 91 is rotatably provided on the mounting seat 4. A bevel gear one 93 is coaxially provided on the gear five 92. A bevel gear two 94 meshing with the bevel gear one 93 is rotatably provided on the mounting seat 4. A gear six 95 is coaxially provided on the bevel gear two 94. The gear six 95 meshes with the inner gear ring two 74.

[0035] Working principle of the transmission mechanism 9: When the mounting seat 4 moves, the gear five 92 is driven to rotate by the rack four 91. The rotation of the bevel gear one 93 drives the bevel gear two 94 to rotate. The gear six 95 drives the inner gear ring two 74 to rotate.

[0036] Combined with the appended Figure 2 , as shown in the appended Figure 3 , as shown in the appended Figure 8 , Figure 11 Figure, a ratchet wheel 510 is provided on the rotating shaft one 52. A fixed shaft is provided on the support rod 3. A pawl 511 cooperating with the ratchet wheel 510 is rotatably provided on the fixed shaft. A torsion spring is provided between the pawl 511 and the fixed shaft. A driving rod 512 is provided on the pawl 511. A trigger rod 513 for driving the driving rod 512 to rotate is provided on the ring two 83. One side of the trigger rod 513 is an arc surface. A plug rod 42 cooperating with the driving rod 512 is provided on the bottom surface of the mounting seat 4. Due to the arrangement of the trigger rod 513 and the plug rod 42, when the mounting seat 6 moves downward, the pawl 511 is separated from the ratchet wheel 510, and the gear two 58 can rotate without causing movement interference.

[0037] Working principle: In the initial state, the torsion spring is in a relaxed state. After the mounting seat 4 moves upward by a certain distance, the moving mechanism 8 drives the gear one 56 to slide. When the gear one 56 slides, the gear one 56 is no longer meshed with the gear two 58. In order to prevent the mounting seat 4 from moving downward under its own gravity, the ratchet wheel 510 and the pawl 511 are provided on the rotating shaft one 52, so that the mounting seat 4 can be prevented from moving downward during the process of the spring one 82 pushing the gear one 56 to slide. At the same time, when the gear one 56 meshes with the gear three 59, the trigger rod 513 on the ring two 83 pushes the driving rod 512 to rotate downward through the arc surface, so that the pawl 511 is no longer in contact with the ratchet wheel 510, and the torsion spring twists. At this time, the fixing of the rotating shaft one 52 is released. After descending to a certain distance, the arc-shaped driving block 810 pushes the gear one 56 to move towards the driving gear one 514. At the same time, the plug rod 42 contacts the driving rod 512, and the trigger rod 513 is separated from the driving rod 512. The gear one 56 is separated from the driving gear two 515. The mounting seat 4 continues to move under its own gravity. The baffle 84 pushes the plug block 85 to move downward through the arc surface on the plug block 85. When the baffle 84 passes over the plug block 85, the gear one 56 meshes with the driving gear one 514, and then the mounting seat 4 moves upward, and the plug rod 42 moves upward. At this time, the torsion spring drives the driving rod 512 to gradually recover, and the pawl 511 fits with the ratchet wheel 510.

[0038] In specific use, place the device at the designated position, start the motor, the motor drives the drive shaft 55 to rotate, the drive shaft 55 drives the sliding mechanism 5, the sliding mechanism 5 drives the mounting seat 4 to reciprocate up and down, thereby driving the warning sign 62 to reciprocate up and down, enabling the vehicles behind to observe it in time. At the same time, the warning sign 62 is in a moving state and is easier to observe. The movement of the mounting seat 4 drives the driving mechanism 7, and the driving mechanism 7 drives the slider 6 to move back and forth in the sliding hole 41 and stay at the end of the sliding hole 41 for a period of time, so that the vehicles on the main road and the branch road can see the warning sign 62. At the same time, the back-and-forth movement of the warning sign 62 makes it easier for the driver to notice, thereby reducing the occurrence of accidents.

[0039] The above describes the present invention and its implementation manners. Such a description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A road construction warning device for a highway, comprising a support frame (1), wherein a fixing seat (2) is provided on the support frame (1), wherein the support frame (1) comprises an annular chassis (11), wherein a connecting rod (12) is provided on the annular chassis (11), wherein a plurality of supporting columns (13) are provided on the connecting rod (12), wherein the supporting columns (13) are connected to the fixing seat (2), wherein: A support rod (3) is provided on the fixed seat (2), a slide groove (31) is provided on the support rod (3), a mounting seat (4) is slidably provided on the slide groove (31), a sliding mechanism (5) for driving the mounting seat (4) to reciprocate up and down is provided on the fixed seat (2), a sliding block (6) is slidably provided on the mounting seat (4) along a circumferential direction, a connecting plate (61) is provided on the sliding block (6), a warning sign (62) is arranged on one side of the connecting plate (61), and a driving mechanism (7) for driving the sliding block (6) to intermittently reciprocate is provided on the mounting seat (4).

2. A highway road construction warning device according to claim 1, characterized in that: The sliding mechanism (5) comprises an extension plate (51) arranged on both sides of the support rod (3), a first rotation shaft (52) and a second rotation shaft (53) are rotatably provided on the extension plates (51) on both sides, a support plate (54) is provided on the fixed seat (2), a driving shaft (55) is rotatably provided between the support plate (54) and the support rod (3), a gear (56) is slidably provided on the driving shaft (55), and the rotation of the driving shaft (55) can drive the gear (56) to rotate, and a double-sided rack (57) is provided on the bottom surface of the mounting seat (4). One end of the rotating shaft 1 (52) and the rotating shaft 2 (53) is respectively provided with a gear 2 (58) and a gear 3 (59), and the gear 2 (58) and the gear 3 (59) are respectively meshed with one side of the double-sided rack (57), and the other end of the rotating shaft 1 (52) and the rotating shaft 2 (53) is respectively provided with a driving gear 1 (514) and a driving gear 2 (515), and in an initial state, the gear 1 (56) is meshed with the driving gear 1 (514), and a moving mechanism (8) for pushing the gear 1 (56) to slide is provided on the fixed seat (2).

3. A highway road construction warning device according to claim 2, characterized in that: The moving mechanism (8) comprises a circular ring (81) rotatably arranged on one side of a gear (56), a spring (82) being arranged between the circular ring (81) and the support plate (54), a circular ring (83) being rotatably arranged on the other side of the gear (56), a baffle (84) being arranged on the circular ring (83), an insert block (85) being movably inserted on the fixed seat (2), a tension spring (86) being arranged between the insert block (85) and the bottom surface of the fixed seat (2), and a spring (86) being arranged on one side of the insert block (85). An arcuate surface cooperates with the baffle (84), the baffle (84) abuts against the other side of the insert block (85), a transmission gear (87) is rotatably provided on the bottom surface of the fixed seat (2), a rack 2 (88) meshing with the transmission gear (87) is provided on one side of the insert block (85), a rack 3 (89) meshing with the transmission gear (87) is provided at the end of the double-sided rack (57), and an arcuate driving block (810) for pushing the gear 1 (56) to slide is provided on the bottom surface of the mounting seat (4).

4. A highway road construction warning device according to claim 1, characterized in that: The driving mechanism (7) comprises a groove (71) on the mounting seat (4), a first inner gear ring (72) being rotatably provided at the bottom of the groove (71), a mounting cover (73) cooperating with the groove (71) being provided on the mounting seat (4), a second inner gear ring (74) being rotatably provided on the bottom surface of the mounting cover (73), a transmission mechanism (9) being provided on the mounting seat (4) for driving the second inner gear ring (74) to rotate when the mounting seat (4) moves, a gear ring (75) being provided on the bottom surface of the second inner gear ring (74), and a gear ring (75) being rotatably provided in the groove (71) to mesh with the gear ring (75). The gear four (76) is engaged with the inner gear ring one (72), and the other side of the gear four (76) is meshed with the inner gear ring one (72). A clamping block one (77) and a clamping block two (78) are movably inserted on the inner gear ring one (72) and the bottom surface of the inner gear ring two (74), respectively. A return spring one is provided between the clamping block one (77) and the inner gear ring one (72), and a return spring two is provided between the clamping block two (78) and the inner gear ring two (74). A clamping plate (79) is provided on one side of the slider (6), and an inclined surface cooperating with the clamping plate (79) is provided on the clamping block one (77) and the clamping block two (78).

5. A highway road construction warning device according to claim 4, characterized in that: The transmission mechanism (9) comprises a rack gear 4 (91) arranged in the slide groove (31), a gear gear 5 (92) rotatably provided on the mounting seat (4) and meshing with the rack gear 4 (91), a bevel gear 1 (93) coaxially provided on the gear gear 5 (92), a bevel gear 2 (94) rotatably provided on the mounting seat (4) and meshing with the bevel gear 1 (93), a gear gear 6 (95) coaxially provided on the bevel gear 2 (94), and the gear 6 (95) meshing with the inner gear ring 2 (74).

6. A highway road construction warning device according to claim 3, characterized in that: A ratchet (510) is provided on the first rotating shaft (52), a fixed shaft is provided on the supporting rod (3), a ratchet (511) which cooperates with the ratchet (510) is rotatably provided on the fixed shaft, a torsion spring is provided between the ratchet (511) and the fixed shaft, a driving rod (512) is provided on the ratchet (511), a trigger rod (513) which drives the driving rod (512) to rotate is provided on the second circular ring (83), one side of the trigger rod (513) is an arc-shaped surface, and an insertion rod (42) which cooperates with the driving rod (512) is provided on the bottom surface of the mounting seat (4).

7. A highway road construction warning device according to claim 4, characterized in that: The mounting seat (4) is provided with a sliding hole (41) communicating with the groove (71); the sliding block (6) is located in the sliding hole (41); the sliding hole (41) is arc-shaped; a limiting block is provided on the sliding block (6); and the mounting seat (4) is provided with a limiting groove in the sliding hole (41) cooperating with the limiting block.

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