CN219568643U - Road engineering road maintenance warning device - Google Patents

Abstract

The utility model relates to a road engineering road maintenance warning device, which relates to the technical field of road engineering warning equipment and comprises a base, wherein a first warning mechanism and a second warning mechanism are fixedly arranged on the base, the first warning mechanism comprises a containing box fixedly connected with the base and an electric push rod arranged in the containing box, one end of the electric push rod is fixedly provided with a protective shell, a display screen is fixedly arranged in the protective shell, and a power supply piece for supplying power to the display screen is arranged at the top of the protective shell; the second warning mechanism comprises two stand columns fixedly connected with the base, and a warning rod for warning pedestrians and a driving assembly for driving the warning rod to rotate are arranged on each stand column. The utility model has the effect of improving the striking effect of the warning device on different roads.

Description

Road engineering road maintenance warning device

Technical Field

The utility model relates to the technical field of road engineering warning equipment, in particular to a road maintenance warning device for road engineering.

Background

The warning device is also called a warning sign, a construction sign and the like, is commonly used for engineering such as road maintenance, extension and the like, and is provided with a road construction device in front of construction to indicate that pedestrians and vehicles know that the front is in a construction state.

With the development of the society, the electronic display screen is applied to the warning device, so that pedestrians and vehicles can see the warning device when light rays are dark. The warning device that uses includes the base, is provided with warning mechanism on the base, warning mechanism include the holding case that fixes the setting on the base with install the electric putter that is provided with inside holding the case, electric putter's one end is fixed to be provided with the protecting crust, at protecting crust internal fixation, electric putter can promote the display screen and remove and make the display screen be located holding the incasement, is provided with the power supply piece for the display screen power supply at the top of protecting crust.

In view of the above-mentioned related art, the inventors consider that a display screen is installed on the warning device, but the width of the road is different when the road is maintained, and when the width of the road is large, in order for pedestrians and vehicles to notice the warning device, a large display screen is required to make the warning device noticeable, but the cost of the warning device will increase.

Disclosure of Invention

The utility model provides a road maintenance warning device for road engineering, in order to improve the striking effect of the warning device on different roads.

The utility model provides a road maintenance warning device for road engineering, which adopts the following technical scheme:

the road engineering road maintenance warning device comprises a base, wherein a first warning mechanism and a second warning mechanism are fixedly arranged on the base, the first warning mechanism comprises a containing box fixedly connected with the base and an electric push rod arranged in the containing box, a protective shell is fixedly arranged at one end of the electric push rod, a display screen is fixedly arranged in the protective shell, and a power supply piece for supplying power to the display screen is arranged at the top of the protective shell; the second warning mechanism comprises two stand columns fixedly connected with the base, and a warning rod for warning pedestrians and a driving assembly for driving the warning rod to rotate are arranged on each stand column.

By adopting the technical scheme, the first warning mechanism and the second warning mechanism are both used for warning pedestrians and vehicles to pay attention to road construction in front, wherein an electric push rod in the first warning mechanism is used for pushing a display screen to move, the display screen is used for displaying warning slogans to remind the pedestrians and the vehicles, and the power supply part provides electricity for the display screen so that the display screen works normally; when the display screen is not required to be used, the display screen is pushed into the protective shell by the electric push rod, so that the damage of the external environment to the display screen is avoided; when the maintenance road is wider, first warning mechanism is unobtrusive, and the pedestrian can't notice warning device, and the second warning mechanism is mainly used to further remind the pedestrian to notice the place ahead road construction state, and the warning pole is to pedestrian and vehicle warning in first warning subassembly's both sides, and drive assembly drive warning pole rotates, for static warning pole, and pivoted warning pole is more easy to draw pedestrian's attention. The cooperation of first warning pole and second warning pole is used, can make when the road is wider, and pedestrian can notice the warning sign, has avoided pedestrian and vehicle mistake to go into the maintenance scene.

Optionally, the upright posts are provided with transmission grooves, the base is provided with a driving cavity, and the transmission grooves are communicated with the driving cavity; the driving assembly comprises a transmission piece and a driving piece, the transmission piece is used for penetrating through the transmission groove and used for driving the warning rod to rotate, and the driving piece is penetrated through the driving cavity and used for driving the transmission piece to operate; the transmission part comprises a mounting shaft fixedly connected with the warning rod, a gear fixedly connected with the mounting shaft and a rack relatively sliding with the upright post, and the gear is meshed with the rack

Through adopting above-mentioned technical scheme, the driving piece passes through driving piece drive warning pole and rotates, and the installation axle is used for connecting warning device, and the driving piece drive rack removes, and the removal of rack will drive with rack meshing driven gear rotation, makes the installation axle with gear connection take place to rotate to make the warning pole take place to rotate.

Optionally, the driving piece comprises a connecting plate for connecting the two racks and a cylinder for driving the connecting plate to move.

Through adopting above-mentioned technical scheme, the connecting plate is used for connecting the rack, and the cylinder is used for promoting the connecting plate and removes, starts the cylinder, and the piston of cylinder will promote the connecting plate and remove, and the removal of connecting plate will drive the rack and take place to slide, has realized the synchronous rotation of two warning poles through the connecting plate, has practiced thrift manufacturing cost.

Optionally, a sliding groove is formed in the side wall of the transmission groove, and a sliding block embedded in the sliding groove and in sliding connection with the sliding groove is fixedly arranged on the rack.

Through adopting above-mentioned technical scheme, the cooperation of sliding block and sliding tray is used and can be made the rack remove in vertical direction, avoids the rack to take place to deflect at the removal in-process, influences the rotatory effect of warning pole.

Optionally, the base is provided with a mounting box with two open ends, the base is provided with a mounting hole, the mounting box covers the mounting hole, the cylinder diameter of the cylinder is arranged in the mounting box, and the piston of the cylinder is arranged in the mounting hole in a penetrating way.

Through adopting above-mentioned technical scheme, with the cylinder setting in the installation box, can avoid the cylinder to take place the damage, influence result of use. In the same driving cavity, the installation of the air cylinder in the mounting box increases the moving range of the connecting rod relative to the installation of the air cylinder in the driving cavity, so that the rotating angle of the warning rod is increased.

Optionally, the second warning mechanism further comprises a warning lamp for warning passers-by and vehicles, and the warning lamp is fixedly connected with the upright post.

By adopting the technical scheme, the warning lamp is arranged on the upright post to further remind pedestrians and vehicles, so that the pedestrians and vehicles mainly reach the warning device in the running process.

Optionally, the second warning mechanism further comprises a display light string, and the display light string is fixedly connected with the warning rod.

Through adopting above-mentioned technical scheme, when the road is wider, set up the display lamp cluster on the warning pole, pedestrian and vehicle can be striking see warning device, especially at night, pedestrian's accessible light judges the width of maintenance road, further avoids pedestrian's mistake to go into the maintenance road.

Optionally, the warning pole adopts telescopic pole, the warning pole includes a plurality of executive tube, executive tube's width reduces in proper order, and two adjacent executive tube sliding connection is provided with the setting element between two adjacent executive tube.

Through adopting above-mentioned technical scheme, telescopic warning pole makes maintenance workman can be according to the length adjustment warning pole's of job site length, can make pedestrian and vehicle know the width of maintenance road, and warning device's length grow simultaneously makes the pedestrian further notice warning sign.

Optionally, a positioning groove is formed in the inner wall of the execution pipe, a fixing groove is formed in the outer wall of the execution pipe, and the positioning piece is arranged in the positioning groove; the positioning piece comprises a ball and a spring fixedly arranged between the ball and the bottom wall of the positioning groove.

Through adopting above-mentioned technical scheme, the setting element can avoid warning pole under natural factors such as external wind-force, makes the length of warning pole change, and the ball inlays and establishes in the fixed slot, avoids two adjacent executive pipes to take place to remove the length of reducing the warning pole.

Optionally, the one end of warning pole is fixed to be provided with the go-between, the go-between cover is established on the installation axle the adjustment tank has been seted up on the go-between, fixed two mounting panels that are provided with on the go-between, one side and the adjustment tank inner wall fixed connection of mounting panel, pass through bolted connection between the mounting panel.

By adopting the technical scheme, the warning rod is detachably connected to the mounting shaft through the connecting ring and the mounting plate, and can be detached when the maintenance road is narrow and is not needed to be used; meanwhile, after the warning device is used, the warning rod can be detached to be stored, so that damage to the warning rod in the carrying process is avoided.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the cooperation of first warning pole and second warning pole is used, can make when the road is wider, and the pedestrian can notice the warning sign, has avoided pedestrian and vehicle mistake to go into the maintenance scene, has enlarged warning device's application scope.

2. The driving piece drives the warning rods to rotate through the transmission piece, so that the warning rods rotate, and the synchronous rotation of the two warning rods can be realized through the cooperation of the air cylinder and the connecting plate;

3. the display light string is arranged on the warning rod, so that pedestrians and vehicles can be highlighted to see the warning device, and especially at night, the pedestrians can judge the width of the maintenance road through light, and the pedestrians are further prevented from entering the maintenance road by mistake.

Drawings

FIG. 1 is a schematic diagram of a road maintenance warning device for road engineering according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an embodiment of the present utility model concealing a first closure panel and a second closure panel;

FIG. 3 is an enlarged view of FIG. 2 at A in accordance with an embodiment of the present utility model;

FIG. 4 is an enlarged view of the embodiment of the utility model at B in FIG. 2;

FIG. 5 is an enlarged view of FIG. 2 at C in accordance with an embodiment of the present utility model;

fig. 6 is an enlarged view of D in fig. 1 according to an embodiment of the present utility model.

Reference numerals illustrate: 1. a base; 11. a drive chamber; 111. a driving groove; 112. a communication hole; 113. a mounting hole; 12. a second closing plate; 2. a first warning mechanism; 21. a housing box; 22. an electric push rod; 23. a protective shell; 24. a display screen; 25. a power supply member; 3. a second warning mechanism; 31. a column; 311. a transmission groove; 312. a sliding groove; 313. a first closing plate; 3131. a rotation hole; 32. a warning rod; 321. an execution pipe; 3211. a positioning groove; 3212. a fixing groove; 3213. a storage groove; 322. a positioning piece; 3221. a ball; 3222. a spring; 33. a drive assembly; 331. a transmission member; 3311. a mounting shaft; 3312. a gear; 3313. a rack; 3314. a sliding block; 332. a driving member; 3321. a connecting plate; 3322. a cylinder; 3323. a mounting box; 34. a warning light; 35. displaying the light string; 351. a connecting wire; 352. a display lamp; 36. a connecting ring; 361. an adjustment tank; 362. and (3) mounting a plate.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-6.

The embodiment of the utility model discloses a road maintenance warning device for road engineering. Referring to fig. 1, a road engineering road maintenance warning device comprises a base 1, wherein a first warning mechanism 2 and a second warning mechanism 3 are fixedly arranged on the base 1, and the first warning mechanism 2 and the second warning mechanism 3 are used for warning pedestrians and vehicles to pay attention to road construction in front.

The cross section of the base 1 is rectangular, and the base 1 is arranged in the horizontal direction. The first warning mechanism 2 comprises a containing box 21 fixedly connected with the top of the base 1 in a welding mode, the top of the containing box 21 is provided with an opening, two electric push rods 22 are fixedly arranged in the containing box 21, and the electric push rods 22 are fixedly connected with the bottom of the containing box 21 through screws; a protective shell 23 is fixedly arranged at the extending end of the electric push rod 22 through a screw, and the side surface of the protective shell 23 is opened; the display screen 24 is fixedly arranged in the protective shell 23 through a screw, the power supply piece 25 for supplying power to the display screen 24 and the electric push rod 22 is fixedly arranged at the top of the protective shell 23 through the screw, the display screen 24 and the electric push rod 22 are electrically connected with the power supply piece 25, the power supply piece 25 is powered by a photovoltaic cell panel, and therefore energy is saved, and the warning device can be normally used outdoors.

When the warning device is stored, the display screen 24 and the protective shell 23 are positioned in the containing box 21, so that damage to the display screen 24 caused by external factors is reduced. When the warning device is used, the base 1 is placed in front of a maintenance road, then the power supply piece 25 drives the electric push rod 22 to start, the electric push rod 22 pushes the display screen 24 and the protective shell 23 to move, the display screen 24 and the protective shell 23 are pushed out of the storage box, and then the display screen 24 is started, and warning slogans are displayed on the display screen 24, so that pedestrians and vehicles are informed of the front maintenance state.

Referring to fig. 1 and 2, the second warning mechanism 3 includes two upright posts 31 arranged in a vertical direction, the bottoms of the upright posts 31 and the top of the base 1 are fixedly connected in a welding manner, and the upright posts 31 are respectively close to two ends of the base 1. The bottom of the upright column 31 is provided with a transmission groove 311, the base 1 is provided with a driving cavity 11, the driving cavity 11 comprises a driving groove 111 formed in the side face of the base 1 and two communication holes 112 formed in the top of the base 1, the driving groove 111 is communicated with the communication holes 112, and the bottom of the upright column 31 is covered on the communication holes 112, so that the transmission groove 311 is communicated with the driving cavity 11.

Referring to fig. 2 and 3, a warning lever 32 and a driving assembly 33 for driving the warning lever 32 to rotate are provided on each of the columns 31. The warning rod 32 adopts a telescopic rod, and the width of the warning device can be adjusted according to the width of the road, so that pedestrians can further notice the warning sign. The warning rod 32 includes a plurality of execution pipes 321, wherein the cross section of the execution pipe 321 is rectangular, the width of the execution pipe 321 is gradually reduced, and two adjacent execution pipes 321 are in sliding connection. Two positioning grooves 3211 are formed in the inner wall of the execution pipe 321, the positioning grooves 3211 are located at the upper portion of the execution pipe 321, the positioning grooves 3211 are symmetrical along the central axis of the execution pipe 321, two fixing grooves 3212 are formed in the outer wall of the execution pipe 321, the fixing grooves 3212 are located at the lower portion of the execution pipe 321, and the section of each fixing groove 3212 is arc-shaped. A positioning piece 322 is arranged in the positioning groove 3211, the positioning piece 322 comprises a ball 3221 and a spring 3222, one end of the spring 3222 is fixedly connected with the bottom of the positioning groove 3211 in a welding mode, and the other end of the spring 3222 is fixedly connected with the ball 3221 in a welding mode. The outer wall of the execution pipe 321 is provided with a storage groove 3213, the storage groove 3213 is positioned at the upper part of the execution pipe 321, when the warning rod 32 is in an initial state, the ball 3221 is positioned in the storage groove 3213, and the warning rod 32 is fixed through the ball 3221, so that the length of the warning rod 32 is prevented from being changed under natural factors such as external wind force and the like.

When the maintenance road is wider, the first warning mechanism 2 is not conspicuous, pedestrians and vehicles can go into the maintenance road by mistake when not noticing the warning device, and the second warning mechanism 3 can adjust the length of the warning device according to the width of the maintenance road. When the warning rod 32 is required to extend according to maintenance conditions, the warning rod 32 is moved in a direction away from the upright rod, the inner wall of the accommodating groove 3213 presses the ball 3221, so that the ball 3221 is withdrawn from the accommodating groove 3213, the ball 3221 presses the spring 3222, the spring 3222 is in a compressed state, and when the ball 3221 and the positioning groove 3211 are aligned, the ball 3221 is positioned in the positioning groove 3211 under the action of the elastic force of the spring 3222, so that the warning rod 32 is fixed; when the warning lever 32 is required to be in the initial state, the warning lever 32 is moved in a direction approaching to the upright rod, the inner wall of the positioning groove 3211 presses the balls 3221, so that the balls 3221 are withdrawn from the positioning groove 3211, and when the balls 3221 are all positioned in the accommodating groove 3213, the warning lever 32 is in the initial state.

Referring to fig. 2 and 4, the driving assembly 33 includes a driving member 331 penetrating the driving groove 311 for driving the warning lever 32 to rotate and a driving member 332 for driving the driving member 331 to operate. The transmission member 331 includes a mounting shaft 3311 rotatably connected to the inner wall of the transmission groove 311, a gear 3312 fixedly connected to the mounting shaft 3311 by a key, and a rack 3313 relatively sliding to the column 31; the installation shaft 3311 is horizontally arranged, and one end of the installation shaft 3311 is exposed out of the transmission groove 311; the rack 3313 is arranged vertically, the rack 3313 is arranged in the communication hole 112 in a penetrating way, and the rack 3313 and the gear 3312 are meshed for transmission. The side wall of the transmission groove 311 is provided with a sliding groove 312, one side of the rack 3313 away from the teeth is fixedly provided with a sliding block 3314 embedded in the sliding groove 312 and in sliding connection with the sliding groove 312, the sliding block 3314 is fixedly connected with the rack 3313 through a screw, the length of the sliding block 3314 is smaller than that of the rack 3313, and the width of the sliding block 3314 is smaller than that of the rack 3313.

The driving member 332 includes a connection plate 3321 horizontally disposed and an air cylinder 3322 for driving the connection plate 3321 to move. The width of the connecting plate 3321 is greater than that of the rack 3313, one end of the connecting plate 3321 is fixedly connected with the bottom of the rack 3313 in a welding mode, and the connecting plate 3321 is positioned in the driving groove 111. The mounting hole 113 is formed in the top of the base 1, the mounting hole 113 is located between the two communication holes 112, the mounting box 3323 is fixedly arranged on the top of the base 1 through bolts, the air cylinder 3322 is arranged in the mounting box 3323, damage to the air cylinder 3322 can be avoided, the using effect is affected, the mounting box 3323 is a hollow cuboid with an opening at the bottom, the mounting hole 113 is covered on the bottom of the mounting box 3323, the air cylinder 3322 and the mounting box 3323 are fixedly connected through bolts, the cylinder diameter of the air cylinder 3322 is located in the mounting box 3323, the piston of the air cylinder 3322 penetrates through the mounting hole 113, and one end of the piston of the air cylinder 3322 is fixedly connected with the connecting plate 3321 through bolts.

In use, the cylinder 3322 is started to enable the piston to relatively slide in the cylinder diameter, so that the connecting plate 3321 is driven to move in the vertical direction, the gear 3312 is driven to move by the movement of the connecting plate 3321, the rack 3313 is driven to move in the vertical direction under the action of the sliding block 3314 and the movable groove, and the gear 3312 is driven to rotate by the movement of the rack 3313, so that the warning rod 32 rotates synchronously.

Referring to fig. 2 and 5, warning lamps 34 are fixed on the tops of the upright posts 31 by screws, and the warning lamps 34 are red, so that pedestrians can further reach the warning device. The display lamp string 35 is detachably connected to the warning rod 32, the display lamp string 35 comprises a connecting wire 351 and display lamps 352 fixedly mounted on the connecting wire 351, and two ends of the warning rod 32 are fixedly connected with the connecting wire 351 in a buckling mode. When the length of the warning rod 32 is adjusted, the display light string 35 is arranged on the warning rod 32, so that pedestrians and vehicles can be enabled to see the warning device in a striking manner, and especially at night, the pedestrians can judge the width of the maintenance road through the light, and further the pedestrians are prevented from entering the maintenance road by mistake.

Referring to fig. 1 and 6, a connecting ring 36 is fixedly arranged at one end of the warning rod 32, which is close to the connecting shaft, in a welding manner, an adjusting groove 361 is formed in the connecting ring 36, the adjusting groove 361 penetrates from the outer side of the connecting rod to the inner side of the connecting rod, two mounting plates 362 are fixedly connected to the connecting ring 36 in a welding manner, the two mounting plates 362 are parallel to each other, one side of the mounting plates 362 is fixedly connected with the inner wall of the adjusting groove 361 in a welding manner, and the two mounting plates 362 are fixedly connected through bolts. In use, the connecting ring 36 is sleeved on the mounting shaft 3311, bolts are threaded between the mounting plates 362, and the bolts are rotated to secure the warning lever 32 to the mounting shaft 3311. When the maintenance road is narrow and no use is needed, the warning rod 32 can be detached; meanwhile, after the warning device is used, the warning rod 32 can be detached to be stored, so that damage to the warning rod 32 in the carrying process is avoided.

The upright 31 is fixedly provided with a first closing plate 313 for closing the transmission groove 311 by a screw, the first closing plate 313 is provided with a rotating hole 3131, a mounting shaft 3311 is arranged in the rotating hole 3131 in a penetrating way, and the width of the first closing plate 313 is the same as the width of the upright 31. A second closing plate 12 for closing the driving groove 111 is fixedly provided on the base 1 by a screw, and the height of the second closing plate 12 is the same as the height of the base 1.

The implementation principle of the road maintenance warning device for the road engineering provided by the embodiment of the utility model is as follows: when the road is maintained, the warning device is arranged in front of the road to warn pedestrians and vehicles to pay attention to the road ahead at present, when the warning device is placed, the base 1 is firstly placed in the middle of the road, and then the electric push rod 22 is started to push the display screen 24 out of the protective shell 23; then, the length of the warning rod 32 is adjusted according to the distance between the display screen 24 and the road at two ends, the display light string 35 is arranged on the warning rod 32, then, the air cylinder 3322 is started, the air cylinder 3322 pushes the connecting plate 3321 to move, and the warning rod 32 is driven to rotate through the transmission piece 331 to further warn pedestrians and vehicles. The cooperation of first warning pole 32 and second warning pole 32 is used, can make when the road is wider, and the pedestrian can notice the warning sign, has avoided pedestrian and vehicle to go into the maintenance scene by mistake, has enlarged warning device's application scope, and simultaneously, the cooperation of display lamp cluster 35 and warning light 34 is used and can make the people notice the warning device at night striking, further avoids the pedestrian to go into the maintenance road by mistake.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. The utility model provides a road engineering road maintenance warning device which characterized in that: the automatic alarm device comprises a base (1), wherein a first alarm mechanism (2) and a second alarm mechanism (3) are fixedly arranged on the base (1), the first alarm mechanism (2) comprises a containing box (21) fixedly connected with the base (1) and an electric push rod (22) arranged in the containing box (21), a protective shell (23) is fixedly arranged at one end of the electric push rod (22), a display screen (24) is fixedly arranged in the protective shell (23), and a power supply piece (25) for supplying power to the display screen (24) is arranged at the top of the protective shell (23); the second warning mechanism (3) comprises two upright posts (31) fixedly connected with the base (1), and each upright post (31) is provided with a warning rod (32) for warning pedestrians and a driving assembly (33) for driving the warning rod (32) to rotate.

2. The road engineering road maintenance warning device according to claim 1, characterized in that: the upright posts (31) are provided with transmission grooves (311), the base (1) is provided with a driving cavity (11), and the transmission grooves (311) are communicated with the driving cavity (11); the driving assembly (33) comprises a transmission piece (331) which is arranged in the transmission groove (311) in a penetrating way and used for driving the warning rod (32) to rotate, and a driving piece (332) which is arranged in the driving cavity (11) in a penetrating way and used for driving the transmission piece (331) to operate; the transmission part (331) comprises a mounting shaft (3311) fixedly connected with the warning rod (32), a gear (3312) fixedly connected with the mounting shaft (3311) and a rack (3313) relatively sliding with the upright post (31), and the gear (3312) is meshed with the rack (3313).

3. The road engineering road maintenance warning device according to claim 2, characterized in that: the driving part (332) comprises a connecting plate (3321) connected with the two racks (3313) and an air cylinder (3322) for driving the connecting plate (3321) to move.

4. The road engineering road maintenance warning device according to claim 2, characterized in that: the side wall of the transmission groove (311) is provided with a sliding groove (312), and the rack (3313) is fixedly provided with a sliding block (3314) which is embedded in the sliding groove (312) and is in sliding connection with the sliding groove (312).

5. A road engineering road maintenance warning device according to claim 3, characterized in that: the mounting box (3323) with two open ends is arranged on the base (1), the mounting hole (113) is formed in the base (1), the mounting hole (113) is covered by the mounting box (3323), the cylinder diameter of the cylinder (3322) is arranged in the mounting box (3323), and the piston of the cylinder (3322) penetrates through the mounting hole (113).

6. The road engineering road maintenance warning device according to claim 1, characterized in that: the second warning mechanism (3) further comprises a warning lamp (34) for warning passers-by and vehicles, and the warning lamp (34) is fixedly connected with the upright post (31).

7. The road engineering road maintenance warning device according to claim 1, characterized in that: the second warning mechanism (3) further comprises a display light string (35), and the display light string (35) is fixedly connected with the warning rod (32).

8. The road engineering road maintenance warning device according to claim 1, characterized in that: the warning rod (32) adopts telescopic pole, warning rod (32) are including a plurality of executive tube (321), the width of executive tube (321) reduces in proper order, and two adjacent executive tube (321) sliding connection is provided with setting element (322) between two adjacent executive tube (321).

9. The road engineering road maintenance warning device according to claim 8, characterized in that: a positioning groove (3211) is formed in the inner wall of the execution pipe (321), a fixing groove (3212) is formed in the outer wall of the execution pipe (321), and the positioning piece (322) is arranged in the positioning groove (3211); the positioning piece (322) comprises a ball (3221) and a spring (3222) fixedly arranged between the ball (3221) and the bottom wall of the positioning groove (3211).

10. The road engineering road maintenance warning device according to claim 2, characterized in that: one end of the warning rod (32) is fixedly provided with a connecting ring (36), the connecting ring (36) is sleeved on the mounting shaft (3311), an adjusting groove (361) is formed in the connecting ring (36), two mounting plates (362) are fixedly arranged on the connecting ring (36), one side of each mounting plate (362) is fixedly connected with the inner wall of each adjusting groove (361), and the mounting plates (362) are connected through bolts.