Warning device of road maintenance engineering vehicle

Abstract

The invention provides a warning device of a road maintenance engineering vehicle, and relates to the technical field of road maintenance, and the warning device is characterized in that a filler separation mechanism is mounted in a supporting mechanism; one end of the angle adjusting mechanism is connected with the supporting mechanism; one side of the warning mechanism is fixedly connected with the angle adjusting mechanism; the moving mechanism is connected with the supporting mechanism and the angle adjusting mechanism; the ladder-shaped structure can be filled with gravel, so that auxiliary support can be better provided; the filler can be quickly separated from the device; the mounting angle of the angle display board can be adjusted according to actual requirements; the rolling wheels can be lifted, so that the device can be conveniently moved, the stable supporting effect is good, and the problems that the warning board easily shakes and displaces due to the influence of strong wind, auxiliary fixing for object carrying wastes time and is troublesome, stability is poor, and position movement is strenuous and troublesome are solved.

Description

Technical Field

[0001] The invention relates to the technical field of highway maintenance, and in particular to a warning device for a highway maintenance engineering vehicle. Background Art

[0002] The purpose of highway maintenance is to ensure the safety, comfort and smooth flow of highways. It can ensure the safety of highways, promptly repair cracks, potholes and other defects on the road surface, prevent accidents during vehicle driving, improve the comfort of the highway, reduce the bumpy feeling during vehicle driving, enhance the comfort of the driver, prevent the accumulation of rainwater from causing road flooding, and affect the smooth flow of traffic. During highway maintenance, it is usually necessary to set up warning devices at certain locations to warn passers-by. Warning signs are large for the convenience of displaying prompts. In windy weather, warning signs are easily affected by strong winds and shake and move, affecting the warning effect. It is time-consuming and troublesome to lift and fix items, and the stability is poor. In addition, warning signs are generally large, and it is laborious and troublesome to move them. Summary of the invention

[0003] The disclosed embodiment relates to a warning device for a highway maintenance engineering vehicle, which comprises a supporting mechanism with a trapezoidal structure, which can be filled with sand and gravel inside and can better provide auxiliary support; a filler separation mechanism, which can play an auxiliary supporting role for fillers such as sand and gravel, and facilitate the quick separation of the filler from the device; an angle adjustment mechanism, and the installation angle of the corner display plate can be adjusted according to actual needs, so that the driver can observe the warning words on the display board conveniently; a moving mechanism, and the internal rolling wheels can be raised and lowered, so that the device can be moved conveniently and the stable support effect is good.

[0004] In a first aspect of the present disclosure, a warning device for a highway maintenance engineering vehicle is provided, which specifically comprises: a supporting mechanism, a filler separation mechanism, an angle adjustment mechanism, a warning mechanism and a moving mechanism;

[0005] The supporting mechanism as a whole is a trapezoidal structure; the filling separation mechanism is installed inside the supporting mechanism; one end of the angle adjustment mechanism is connected to the supporting mechanism; one side of the warning mechanism is fixedly connected to the angle adjustment mechanism; the moving mechanism is connected to the supporting mechanism and the angle adjustment mechanism; the angle adjustment mechanism includes: a main control component and a rotating component; the main control component is fixedly installed inside the filling bucket; the number of rotating components is set to two groups, the rotating components are installed inside the supporting mechanism and connected to the main control component.

[0006] In at least some embodiments, the supporting mechanism includes: a supporting box, a filling hopper, a supporting frame, a supporting rod and a supporting rod; the supporting box as a whole is a trapezoidal structure with a hollow interior, and the supporting box with a trapezoidal structure has a good supporting effect; the filling hopper is a trapezoidal structure, and the bottom of the filling hopper is fixedly connected to the supporting box, and the filling hopper can facilitate the filling of materials into the supporting box; the supporting frame is a square frame structure, and a slide groove is provided on the surface of the supporting frame, and the inner side of the supporting frame is fixedly connected to the surface of the supporting box; one side of the supporting rod is fixedly connected to the filling hopper; the supporting rod is a rectangular structure with a hollow interior, and one side of the supporting rod is fixedly connected to the supporting rod.

[0007] In at least some embodiments, the filler separation mechanism includes: a control component, a rotating column, a threaded lifting rod and a plug plate; the control component is fixedly installed at the bottom of the support box; the number of rotating columns is set to two groups, the rotating columns are provided with threads inside, and the bottom of the rotating columns is rotatably connected to the control component; the threaded lifting rod is rotatably inserted into the rotating column threads; the plug plate is a triangular structure as a whole, the bottom of the plug plate is fixedly connected to the threaded lifting rod, the plug plate can play a role in assisting in sealing the bottom of the support box, and the rotating column and the threaded lifting rod can control the plug plate to lift and slide.

[0008] In at least some embodiments, the control component also includes: a bottom rod, a main control rod, a bevel gear assembly and a driving rod; the bottom rod is a rectangular structure with a hollow interior, and the bottom rod is fixedly installed on the bottom of the support box; the main control rod is rotatably inserted into the bottom of the bottom rod; the number of bevel gear assemblies is set to two groups, and one side of the bottom of the bevel gear assembly is connected to the main control rod; the number of driving rods is set to two groups, the bottom of the driving rod is rotatably inserted into the bottom rod and connected to the main control rod, and the top of the driving rod is fixedly connected to the rotating column.

[0009] In at least some embodiments, the main control component also includes: a support box, a rotating rod, control teeth, a fixed limit plate, a sliding plate, a rack plate and a threaded control rod; the support box is a rectangular structure with a hollow interior, and the support box is fixedly installed inside the filling bucket; the middle part of the rotating rod is rotatably connected to the support box, and the left and right ends of the rotating rod are rotatably connected to the inner wall of the filling bucket; the control teeth are fixedly installed in the middle of the rotating rod; the fixed limit plate is a T-shaped structure as a whole, and the fixed limit plate is fixedly installed inside the support box; one side of the top of the sliding plate is slidably connected to the fixed limit plate, and the fixed limit plate can limit the sliding plate to prevent the sliding plate from rotating offset; one side of the top of the rack plate is fixedly connected to the sliding plate, and the bottom of the rack plate is meshed with the control teeth, and the sliding of the rack plate can control the rotation of the rotating rod through the control teeth; the threaded control rod is rotatably inserted into the interior of the support box and threadedly connected to the sliding plate.

[0010] In at least some embodiments, the rotating assembly also includes: a connecting rod, a gear A, a driving chain, a rotating rod and a gear B; one end of the connecting rod is rotatably inserted into the support rod, and the other end of the connecting rod is fixedly connected to the rotating rod; the number of gears A is set to two groups, and gear A is fixedly installed at one end of the connecting rod; the inner side of the driving chain is meshed and connected with gear A; one end of the rotating rod is rotatably inserted into the support rod, and the other end of the rotating rod is connected to the warning mechanism; gear B is fixedly installed on one side of the rotating rod.

[0011] In at least some embodiments, the warning mechanism includes: a display board, replaceable paper sheets and a display screen; the display board is a rectangular structure as a whole, the display board is fixedly connected to the rotating rod, and the angle of the display board can be adjusted as needed; the replaceable paper sheets are placed on the surface of the display board, and the replaceable paper sheets are used to display the warning words; the display screen is installed on the surface of the display board.

[0012] In at least some embodiments, the moving mechanism includes: a threaded adjustment rod, a lifting plate, a driving frame and a moving wheel; one end of the bottom of the threaded adjustment rod is rotatably connected to the support box; the middle part of the lifting plate is threadedly connected to the threaded adjustment rod, and the rotation of the threaded adjustment rod can control the lifting and movement of the lifting plate; the number of driving frames is set to two groups, the bottom of the driving frame slides through the support frame, and the top of the driving frame is fixedly connected to the lifting plate; the moving wheel is rotatably connected to the driving frame.

[0013] The present invention has the following beneficial effects

[0014] The present invention is provided with a supporting mechanism inside, and the supporting mechanism is a trapezoidal structure as a whole, has a large bottom, a large contact area with the ground, and a good supporting effect, and the inside of the supporting mechanism can be filled with sand and gravel, which can better provide auxiliary support and effectively prevent the device from shaking due to strong winds.

[0015] A filler separation mechanism is also provided inside the device. The plug plate inside the filler separation mechanism contacts the inner wall of the support box, which can provide auxiliary support for fillers such as sand and gravel. After the construction is completed, the plug plate can be directly controlled to move downward, and the plug plate can be separated from the support box to create a gap, which facilitates the quick separation of the filler from the device.

[0016] An angle adjustment mechanism is also provided inside the device, one end of which is connected to the warning mechanism. The angle adjustment mechanism can control the display board to rotate and automatically lock. The installation angle of the display board can be adjusted according to actual needs, which can make it more convenient for drivers to observe the warning words on the display board.

[0017] The present invention is also provided with a moving mechanism inside. The rolling wheels inside the moving mechanism can be lifted and slid as needed. The rolling wheels are in contact with the ground, which can facilitate the staff to control the movement of the entire device and the staff to control the device to move its position, which is labor-saving and convenient. The rolling wheels are lifted, the support box is in contact with the ground, and the stable support effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 A schematic structural diagram of the main body of the present invention is shown as a side view of the main body;

[0022] Figure 2 A schematic diagram of the structure of the main body of the present invention is shown as seen from above;

[0023] Figure 3 A schematic structural diagram of the support mechanism of the present invention is shown in an axial side view;

[0024] Figure 4 A schematic cross-sectional view of the structure of the filler separation mechanism of the present invention is shown;

[0025] Figure 5 A schematic diagram showing a cross-sectional view of the control assembly of the present invention is shown;

[0026] Figure 6 A schematic structural diagram of the angle adjustment mechanism of the present invention is shown in an axial side view;

[0027] Figure 7 A schematic structural diagram of a cross-section view of a main control assembly of the present invention is shown;

[0028] Figure 8 A schematic structural diagram of a cross-section of a rotating assembly of the present invention is shown;

[0029] Fig. 9 A schematic structural diagram of the main body of the present invention is shown in a side view of the main body.

[0030] Reference numerals list

[0031] 1. Support mechanism; 101. Support box; 102. Filling bucket; 103. Support frame; 104. Support rod; 105. Support rod; 2. Filling separation mechanism; 201. Control assembly; 2011. Bottom rod; 2012. Main control rod; 2013 Bevel gear assembly; 2014. Driving rod; 202. Rotating column; 203. Threaded lifting rod; 204. Stopper; 3. Angle adjustment mechanism; 301. Main control assembly; 3011. Support box; 3012. Rotating rod; 3013. Control gear; 3014. Fixed Fixed limit plate; 3015, sliding plate; 3016, rack plate; 3017, threaded control rod; 302, rotating assembly; 3021, connecting rod; 3022, gear A; 3023, driving chain; 3024, rotating rod; 3025, gear B; 4, warning mechanism; 401, display board; 402, replaceable paper; 403, display screen; 5, moving mechanism; 501, threaded adjustment rod; 502, lifting plate; 503, driving frame; 504, rotating shaft; 505, moving wheel. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0033] Example: Please refer to Figures 1 to 9 :

[0034] The present invention proposes a warning device for a highway maintenance engineering vehicle, comprising: a supporting mechanism 1, a filler separation mechanism 2, an angle adjustment mechanism 3, a warning mechanism 4 and a moving mechanism 5;

[0035] The supporting mechanism 1 is a trapezoidal structure as a whole; the filling separation mechanism 2 is installed inside the supporting mechanism 1; one end of the angle adjustment mechanism 3 is connected to the supporting mechanism 1; one side of the warning mechanism 4 is fixedly connected to the angle adjustment mechanism 3; the moving mechanism 5 is connected to the supporting mechanism 1 and the angle adjustment mechanism 3; the angle adjustment mechanism 3 includes: a main control component 301 and a rotating component 302; the main control component 301 is fixedly installed inside the filling bucket 102; the number of rotating components 302 is set to two groups, and the rotating components 302 are installed inside the supporting mechanism 1 and connected to the main control component 301.

[0036] like Figure 3As shown, the supporting mechanism 1 includes: a supporting box 101, a filling hopper 102, a supporting frame 103, a supporting rod 104 and a supporting rod 105; the supporting box 101 as a whole is a trapezoidal structure with a hollow interior, and the supporting box 101 with a trapezoidal structure has a good supporting effect; the filling hopper 102 is a trapezoidal structure, and the bottom of the filling hopper 102 is fixedly connected to the supporting box 101, and the filling hopper 102 can facilitate the filling of materials into the supporting box 101; the supporting frame 103 is a square frame structure, and a slide groove is provided on the surface of the supporting frame 103, and the inner side of the supporting frame 103 is fixedly connected to the surface of the supporting box 101; one side of the supporting rod 104 is fixedly connected to the filling hopper 102; the supporting rod 105 is a rectangular parallelepiped structure with a hollow interior, and one side of the supporting rod 105 is fixedly connected to the supporting rod 104.

[0037] like Figure 4 As shown, the filler separation mechanism 2 includes: a control component 201, a rotating column 202, a threaded lifting rod 203 and a plug plate 204; the control component 201 is fixedly installed at the bottom of the support box 101; the number of rotating columns 202 is set to two groups, the rotating column 202 is provided with a thread inside, and the bottom of the rotating column 202 is rotatably connected to the control component 201; the threaded lifting rod 203 is rotated and inserted into the thread of the rotating column 202; the plug plate 204 is a triangular structure as a whole, and the bottom of the plug plate 204 is fixedly connected to the threaded lifting rod 203, the plug plate 204 can play a role in assisting in sealing the bottom of the support box 101, and the rotating column 202 and the threaded lifting rod 203 can control the plug plate 204 to rise and fall and slide.

[0038] like Figure 5 As shown, the control component 201 also includes: a bottom rod 2011, a main control rod 2012, a bevel gear assembly 2013 and a driving rod 2014; the bottom rod 2011 is a rectangular structure with a hollow interior, and the bottom rod 2011 is fixedly installed at the bottom of the support box 101; the main control rod 2012 is rotatably inserted into the bottom rod 2011; the bevel gear assembly 2013 is set in two groups, and one side of the bottom of the bevel gear assembly 2013 is connected to the main control rod 2012; the driving rod 2014 is set in two groups, and the bottom of the driving rod 2014 is rotatably inserted into the bottom rod 2011 and connected to the main control rod 2012, and the top of the driving rod 2014 is fixedly connected to the rotating column 202.

[0039] like Figure 6As shown, the main control component 301 also includes: a support box 3011, a rotating rod 3012, a control tooth 3013, a fixed limit plate 3014, a sliding plate 3015, a rack plate 3016 and a threaded control rod 3017; the support box 3011 is a rectangular parallelepiped structure with a hollow interior, and the support box 3011 is fixedly installed inside the filling bucket 102; the middle part of the rotating rod 3012 is rotatably connected to the support box 3011, and the left and right ends of the rotating rod 3012 are rotatably connected to the inner wall of the filling bucket 102; the control tooth 3013 is fixedly installed in the middle of the rotating rod 3012; the fixed limit plate 3014 is a T-shaped structure as a whole, and the fixed limit Plate 3014 is fixedly installed inside the support box 3011; one side of the top of the sliding plate 3015 is slidably connected to the fixed limit plate 3014, and the fixed limit plate 3014 can limit the sliding plate 3015 to prevent the sliding plate 3015 from deviating and rotating; one side of the top of the rack plate 3016 is fixedly connected to the sliding plate 3015, and the bottom of the rack plate 3016 is meshed with the control tooth 3013, and the sliding of the rack plate 3016 can control the rotation of the rotating rod 3012 through the control tooth 3013; the threaded control rod 3017 is rotatably inserted into the interior of the support box 3011 and is threadedly connected to the sliding plate 3015.

[0040] like Figure 7 As shown, the rotating assembly 302 also includes: a connecting rod 3021, a gear A3022, a driving chain 3023, a rotating rod 3024 and a gear B3025; one end of the connecting rod 3021 is rotatably inserted into the support rod 105, and the other end of the connecting rod 3021 is fixedly connected to the rotating rod 3012; the number of gears A3022 is set to two groups, and the gear A3022 is fixedly installed at one end of the connecting rod 3021; ​​the inner side of the driving chain 3023 is meshed and connected with the gear A3022; one end of the rotating rod 3024 is rotatably inserted into the support rod 105, and the other end of the rotating rod 3024 is connected to the warning mechanism 4; the gear B3025 is fixedly installed on one side of the rotating rod 3024.

[0041] like Figure 8 As shown, the warning mechanism 4 includes: a display board 401, a replaceable paper sheet 402 and a display screen 403; the display board 401 is a rectangular parallelepiped structure as a whole, the display board 401 is fixedly connected to the rotating rod 3024, and the angle of the display board 401 can be adjusted as needed; the replaceable paper sheet 402 is placed on the surface of the display board 401, and the replaceable paper sheet 402 is used to display the warning message; the display screen 403 is installed on the surface of the display board 401.

[0042] like Fig. 9As shown, the moving mechanism 5 includes: a threaded adjustment rod 501, a lifting plate 502, a driving frame 503 and a moving wheel 504; one end of the bottom of the threaded adjustment rod 501 is rotatably connected to the support box 3011; the middle part of the lifting plate 502 is threadedly connected to the threaded adjustment rod 501, and the rotation of the threaded adjustment rod 501 can control the lifting and lowering movement of the lifting plate 502; the number of driving frames 503 is set to two groups, the bottom of the driving frame 503 slides through the support frame 103, and the top of the driving frame 503 is fixedly connected to the lifting plate 502; the moving wheel 504 is rotatably connected to the driving frame 503.

[0043] Specific usage and function of this embodiment: Before going to the destination for construction, sand and gravel can be filled into the support box 101 in advance. Since the top of the support box 101 is fixedly connected with the filling bucket 102, and the bottom opening of the filling bucket 102 is large, it is convenient for the staff to pour sand and gravel into the support box 101. The support box 101 is a trapezoidal structure with a large bottom, which can have a good stable support effect and better sand and gravel filling stability. After the later maintenance is completed, the main control rod 2012 can be directly rotated. The main control rod 2012 rotates and controls the two sets of driving rods 2014 to rotate at the same time through the bevel gear assembly 2013. The threaded lifting rod 203 is rotated and inserted into the threaded hole of the rotating column 202. The rotating column 202 and the threaded lifting rod 203 can control the plug plate 204 to lift and slide. The plug plate 204 moves down to support the support box 1. 01 The bottom is open to facilitate the separation of sand and gravel; when installing the device, the threaded control rod 3017 can be controlled to rotate according to the inclination of the road surface or other conditions. The thread on the surface of the threaded control rod 3017 pushes the sliding plate 3015 and the rack plate 3016 to move, and the control gear 3013 and the rotating rod 3012 are forced to rotate. The gears A3022 at the left and right ends of the rotating rod 3012 drive the rotating rod 3024 to rotate by driving the chain 3023, so that the installation angle of the warning mechanism 4 is changed, which is more convenient for viewing the warning words displayed on the surface of the display board 401. When reaching the appropriate position, the threaded adjustment rod 501 can be controlled to rotate. The thread on the surface of the threaded adjustment rod 501 controls the lifting plate 502 and drives the frame 503 to slide downward, and the moving wheel 504 contacts the ground, which is convenient for the staff to control the movement of the device.

[0044] In this article, there are a few points to note:

[0045] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0046] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0047] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A warning device for a highway maintenance engineering vehicle, comprising: A supporting mechanism (1), a filler separation mechanism (2), an angle adjustment mechanism (3), a warning mechanism (4) and a moving mechanism (5); The supporting mechanism (1) is a trapezoidal structure as a whole; it is characterized in that the filling separation mechanism (2) is installed inside the supporting mechanism (1); one end of the angle adjustment mechanism (3) is connected to the supporting mechanism (1); one side of the warning mechanism (4) is fixedly connected to the angle adjustment mechanism (3); the moving mechanism (5) is connected to the supporting mechanism (1) and the angle adjustment mechanism (3); the angle adjustment mechanism (3) comprises: a main control component (301) and a rotating component (302); the main control component (301) is fixedly installed inside the filling bucket (102); the rotating component (302) is installed inside the supporting mechanism (1) and is connected to the main control component (301).

2. A warning device for a highway maintenance engineering vehicle according to claim 1, characterized in that: The support mechanism (1) comprises: a support box (101), a filling hopper (102), a support frame (103), a support rod (104) and a support rod (105); the support box (101) is a trapezoidal structure with a hollow interior; the filling hopper (102) is a trapezoidal structure, and the bottom of the filling hopper (102) is fixedly connected to the support box (101); the support frame (103) is a square frame structure, a sliding groove is provided on the surface of the support frame (103), and the inner side of the support frame (103) is fixedly connected to the surface of the support box (101); one side of the support rod (104) is fixedly connected to the filling hopper (102); the support rod (105) is a rectangular parallelepiped structure with a hollow interior, and one side of the support rod (105) is fixedly connected to the support rod (104).

3. The warning device for a highway maintenance engineering vehicle according to claim 2, characterized in that: The filler separation mechanism (2) comprises: a control component (201), a rotating column (202), a threaded lifting rod (203) and a plug plate (204); the control component (201) is fixedly mounted on the bottom of the support box (101); a thread is provided inside the rotating column (202), and the bottom of the rotating column (202) is rotatably connected to the control component (201); the threaded lifting rod (203) is rotatably inserted into the thread of the rotating column (202); the plug plate (204) is a triangular structure as a whole, and the bottom of the plug plate (204) is fixedly connected to the threaded lifting rod (203).

4. The warning device for a highway maintenance engineering vehicle according to claim 3, characterized in that: The control assembly (201) further comprises: a bottom rod (2011), a main control rod (2012), a bevel gear assembly (2013) and a driving rod (2014); the bottom rod (2011) is a rectangular parallelepiped structure with a hollow interior, and the bottom rod (2011) is fixedly mounted on the bottom of the support box (101); the main control rod (2012) is rotatably inserted into the bottom rod (2011); the bevel gear assembly (2013) is provided in two groups, and one side of the bottom of the bevel gear assembly (2013) is connected to the main control rod (2012); the bottom of the driving rod (2014) is rotatably inserted into the bottom rod (2011) and connected to the main control rod (2012), and the top of the driving rod (2014) is fixedly connected to the rotating column (202).

5. The warning device for a highway maintenance engineering vehicle according to claim 2, characterized in that: The main control assembly (301) further comprises: a support box (3011), a rotating rod (3012), a control tooth (3013), a fixed limit plate (3014), a sliding plate (3015), a rack plate (3016) and a threaded control rod (3017); the support box (3011) is a rectangular parallelepiped structure with a hollow interior, and the support box (3011) is fixedly installed inside the filling hopper (102); the middle part of the rotating rod (3012) is rotatably connected to the support box (3011), and the left and right ends of the rotating rod (3012) are rotatably connected to the inner wall of the filling hopper (102); the control tooth (3013) is fixedly installed on the rotating rod (3012) and the control tooth (3013) is fixedly installed on the rotating rod (3012). The middle part of the rod (3012); the fixed limit plate (3014) is fixedly installed inside the support box (3011); the top side of the sliding plate (3015) is slidably connected to the fixed limit plate (3014); the top side of the rack plate (3016) is fixedly connected to the sliding plate (3015), and the bottom of the rack plate (3016) is meshed and connected with the control teeth (3013), and the sliding of the rack plate (3016 can control the rotation of the rotating rod (3012) through the control teeth (3013); the threaded control rod (3017) is rotatably inserted into the inside of the support box (3011) and is threadedly connected to the sliding plate (3015).

6. The warning device for a highway maintenance engineering vehicle according to claim 5, characterized in that: The rotating assembly (302) further comprises: a connecting rod (3021), a gear A (3022), a driving chain (3023), a rotating rod (3024) and a gear B (3025); one end of the connecting rod (3021) is rotatably inserted into the support rod (105), and the other end of the connecting rod (3021) is fixedly connected to the rotating rod (3012); the number of gears A (3022) is set to two groups, and the gears A (3022) are fixedly installed at one end of the connecting rod (3021); the inner side of the driving chain (3023) is meshed and connected with the gear A (3022); one end of the rotating rod (3024) is rotatably inserted into the support rod (105), and the other end of the rotating rod (3024) is connected to the warning mechanism (4); and the gear B (3025) is fixedly installed on one side of the rotating rod (3024).

7. A warning device for a highway maintenance engineering vehicle according to claim 6, characterized in that: The warning mechanism (4) comprises: a display board (401), a replaceable paper sheet (402) and a display screen (403); the display board (401) is a rectangular parallelepiped structure as a whole, and the display board (401) is fixedly connected to the rotating rod (3024); the replaceable paper sheet (402) is placed on the surface of the display board (401); and the display screen (403) is installed on the surface of the display board (401).

8. The warning device for a highway maintenance engineering vehicle according to claim 5, characterized in that: The moving mechanism (5) comprises: a threaded adjustment rod (501), a lifting plate (502), a driving frame (503) and a moving wheel (504); one end of the bottom of the threaded adjustment rod (501) is rotatably connected to the support box (3011); the middle of the lifting plate (502) is threadedly connected to the threaded adjustment rod (501); the number of the driving frames (503) is set to two groups, the bottom of the driving frame (503) slides through the support frame (103), and the top of the driving frame (503) is fixedly connected to the lifting plate (502); and the moving wheel (504) is rotatably connected to the driving frame (503).

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