Warning bar for road engineering construction

Abstract

The invention relates to a warning bar for road engineering construction, and belongs to the technical field of construction warning bars, the warning bar comprises a first warning bar, the first warning bar comprises a connecting shaft and a second warning bar, the side wall of the first warning bar is rotatably connected with the connecting shaft, and the outer wall of the connecting shaft is connected with the second warning bar in a clamping manner; a reflective strip is arranged on the outer wall of the first warning bar. When an arranged rest stool plate is used for assisting rest of a constructor, a first rotary knob is rotated to drive a first worm to rotate through rotation of a first bevel gear set, rotation of the first worm drives the rest stool plate to turn over through connection of a first worm gear, a second worm gear in a connecting box is operated, and the rest stool plate is driven to turn over through rotation of the second worm gear. And the support rod is driven to turn over, so that the support rod is in contact with the ground, the effect of improving the supporting and using stability of the rest stool plate and the ground is achieved, and the multifunctionality of the warning bar in daily use is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction warning fences, and more particularly to a warning fence for road engineering construction. Background Art

[0002] Municipal management refers to urban public utilities such as urban roads, bridges, water supply and drainage, sewage treatment, urban flood control, gardens, road greening, street lights and environmental sanitation, and road traffic engineering, such as roads, interchanges, squares, traffic facilities, rail transit facilities such as railways and subways, and river and lake water system projects, such as river, bridge, water diversion canal, drainage and irrigation pumping stations, sluice bridges and other hydraulic structures, underground pipeline projects for general water supply and drainage (including rain and sewage), power supply, communication, gas supply, heat supply pipelines, special underground pipelines, civil air defense passages, etc., overhead line projects, power supply poles, communication poles, trolley poles and overhead pipelines of different voltage levels, street greening projects, streets, shrubs, lawns, greening ornaments (such as rockeries, verandas, easels, pools, fountains, etc. in street greening), buildings and structures are the main components of municipal professional engineering sites (factories), stations and points. Municipal roads refer to urban roads. Municipal roads are divided into five grades: expressways, arterial roads, sub-arterial roads, branch roads and roads within the area (residential areas, industrial areas) according to their status in the road network, traffic functions and service functions for the areas along the line. During the construction of urban roads, it is often necessary to isolate the road construction area to prevent non-construction personnel from entering. Therefore, it is necessary to use warning fences to protect the road construction area.

[0003] In the prior art, a road fence for traffic engineering construction with the publication number of CN220621351U includes two hollow columns and a plurality of railing parts arranged between the two hollow columns. The railing part includes a U-shaped sleeve, two first railings and two second railings. Both of the two first railings rotate within the U-shaped sleeve, and both of the two second railings slide within the corresponding first railing. A connecting plate is fixed to the end of the second railing away from the first railing, and a fixing sleeve is fixed to the end of the connecting plate away from the second railing. A plurality of rectangular grooves are formed in the hollow column, and the fixing sleeve and the connecting plate are slidably fitted within the rectangular grooves. When the two first railings within the railing part are moved closer to each other so that the two first railings are arranged in parallel, and the railing part is placed into the hollow column, the first rectangular plate is snapped into the card slot of the U-shaped sleeve, that is, the railing part is received within the hollow column, so that the railing part is received. When transporting the fence, the occupied space is small.

[0004] However, although the existing warning fences can provide good protection for road engineering construction areas, during long-term construction of road projects, construction workers need to take temporary breaks. However, there is often no place for construction workers to rest and sit within the protected area of the warning fence, reducing the multifunctionality of the warning fence for the temporary rest of construction workers. At the same time, when construction workers continue construction after rest, the warning fence has a low hanging and storage effect on the items carried by construction workers, causing construction workers to often place their personal items on the construction ground, which is likely to interfere with the area to be constructed and may also result in the situation of personal items being forgotten, reducing the multifunctionality of the warning fence for road construction and not meeting people's usage requirements. Therefore, we propose a warning fence for road engineering construction. Summary of the Invention

[0005] To solve the problems mentioned in the above background, the present invention provides a warning fence for road engineering construction to solve the problems that construction workers often have no place to rest and sit within the protected area of the warning fence, reducing the multifunctionality of the warning fence for the temporary rest of construction workers, and when construction workers continue construction after rest, the warning fence has a low hanging and storage effect on the items carried by construction workers as mentioned in the above background technology.

[0006] To achieve the above technical objectives, the technical solutions adopted by the present invention are as follows:

[0007] A warning fence for road engineering construction includes a first warning fence. The first warning fence includes a connecting shaft and a second warning fence. The side wall of the first warning fence is rotatably connected to the connecting shaft, and the outer wall of the connecting shaft is snap-connected to the second warning fence. The outer wall of the first warning fence is provided with a reflective strip;

[0008] The first warning fence further includes:

[0009] A control box, fixedly connected to the outer wall of the first warning fence;

[0010] A rest mechanism, arranged on the outer wall of the first warning fence for construction workers to take daily construction breaks;

[0011] The control box is respectively arranged in one-to-one correspondence between the first warning fence and the second warning fence;

[0012] An installation mechanism, arranged on the outer wall of the connecting shaft;

[0013] A conversion mechanism, arranged on the outer wall of the connecting shaft;

[0014] The rest mechanism includes a rest bench board. A first bevel gear set is rotatably connected to the inner side wall of the control box. A first knob is fixedly connected to the outer wall of the first bevel gear set through a rotating shaft. A first worm is fixedly connected to the outer wall of the first bevel gear set. A first worm gear meshing with the outer wall of the first worm is rotatably connected to the inner wall of the control box. The rotation center of the first worm gear is fixedly connected to the rest bench board through a rotating shaft. A connection box is fixedly connected to the side wall of the rest bench board. A support rod is rotatably connected to the bottom of the rest bench board. A hanging hook is fixedly connected to the outer wall of the support rod.

[0015] Preferably, a second bevel gear set is rotatably connected to the inner side wall of the connection box. A second knob is fixedly connected to the outer wall of the second bevel gear set. A second worm is fixedly connected to the outer wall of the second bevel gear set. A second worm gear meshing with the outer wall of the second worm is rotatably connected to the inner side wall of the connection box.

[0016] Preferably, the first worm gear forms a rotating structure with the control box through the first bevel gear set and the first worm. The rotation center of the first worm gear coincides with the rotation center of the rest bench board.

[0017] Preferably, the top of the rest bench board is in a grid-like hollow shape, and the inside of the rest bench board is hollow, and an electric fan is arranged inside the rest bench board.

[0018] Preferably, the outer wall contour of the connection part of the support rod and the hanging hook is in an L shape, and a storage groove is formed at the connection part of the bottom of the rest bench board and the support rod.

[0019] Preferably, the support rod forms a flipping structure with the rest bench board through the second worm and the second worm gear. There are two groups of support rods, and the positions of the two groups of support rods are symmetric about the central axis of the rest bench board. The rest bench boards are distributed in a straight line on the outer wall of the first warning fence.

[0020] Preferably, the installation mechanism includes an installation clamping rod. An installation box is fixedly connected to the top of the second warning fence. A threaded rod is rotatably connected to the inner wall of the installation box. A third knob is fixedly connected to one end of the threaded rod. An installation clamping rod slidingly connected to the outer wall of the installation box is threadedly connected to the outer wall of the threaded rod. A chute is formed at the connection part of the outer wall of the installation box and the installation clamping rod. An installation clamping groove is formed at the connection part of the outer wall of the connection shaft and the installation clamping rod.

[0021] Preferably, the installation clamping rod forms a sliding structure with the sliding groove through the threaded rod. There are two groups of threaded rods, and the rotation directions of the two groups of threaded rods are opposite. The second warning fence forms a clamping structure with the first warning fence through the installation clamping rod and the installation clamping groove. There are two groups of installation clamping rods and installation clamping grooves, and the positions of the two groups of installation clamping rods and installation clamping grooves are symmetrically distributed about the central axis of the connecting shaft.

[0022] Preferably, the conversion mechanism includes a positioning groove. A nut is provided at the top of the first warning fence, and a bolt that is slidably connected to the outer wall of the connecting shaft is threadedly connected to the inner wall of the nut. A positioning groove is formed at the connection part between the outer wall of the connecting shaft and the bolt.

[0023] Preferably, the connecting shaft forms a clamping structure with the first warning fence through the bolt and the positioning groove. There are four groups of positioning grooves, and the positions of the four groups of positioning grooves are annularly distributed about the central axis of the connecting shaft.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. When the rest bench board provided by the present invention is used to assist the construction workers to rest, rotate the first knob. Through the rotation of the first bevel gear set, drive the first worm to rotate. The rotation of the first worm drives the rest bench board to flip through the connection of the first worm gear, and operate the second worm gear in the connection box to drive the support rod to flip, so that the support rod contacts the ground, achieving the effect of improving the use stability of the rest bench board and the ground support, and playing a role in improving the versatility of the warning fence in daily use.

[0026] 2. An electric fan is provided inside the rest bench board of the present invention. When the construction workers use the rest bench board on the surface of the warning fence, turn on the electric fan inside the bench board, which plays a role in assisting in cooling the construction workers and achieving the effect of improving the physical and mental comfort of the construction workers during long-term construction.

[0027] 3. When the present invention needs to fence a large construction area with a warning fence, in order to improve the convenience of clamping and splicing between the warning fences, after splicing the warning fences, rotate the third knob. Through the rotation of the threaded rod, drive the installation clamping rod to slide along the inner wall of the sliding groove, and make the installation clamping rod insert into the inner wall of the installation clamping groove, playing a role in improving the convenience of splicing and using the warning fences.

[0028] 4. When the present invention needs to convert the protection of the construction area, in order to improve the convenience of flipping and using the warning fences after splicing, the connecting shaft can be rotated, and the bolt can be rotated. Through the limiting effect of the nut, the bolt slides into the positioning groove, playing a role in conveniently adjusting the splicing angle between the warning fences and achieving the effect of converting the protection of different-shaped construction areas. Description of the Drawings

[0029] Figure 1 is the overall structural schematic diagram of the present invention;

[0030] Figure 2 is the connection structure schematic diagram of the first warning fence and the second warning fence of the present invention in another state;

[0031] Figure 3 is the connection structure schematic diagram of the first warning fence and the second warning fence of the present invention;

[0032] Figure 4 is the internal structure schematic diagram of the installation box of the present invention;

[0033] Figure 5 is the position distribution structure schematic diagram of the installation card slots of the present invention;

[0034] Figure 6 is the structure schematic diagram of the storage state of the support rod of the present invention;

[0035] Figure 7 is the structure schematic diagram of the storage state of the rest stool board of the present invention;

[0036] Figure 8 is the structure schematic diagram of the use state of the rest stool board of the present invention;

[0037] Figure 9 is of the present invention Figure 2 the enlarged structure schematic diagram of the A position in;

[0038] Figure 10 is of the present invention Figure 3 the enlarged structure schematic diagram of the B position in;

[0039] Figure 11 is of the present invention Figure 8 the enlarged structure schematic diagram of the C position in.

[0040] The reference numerals in the drawings are:

[0041] 1, first warning fence; 2, connecting shaft; 3, second warning fence; 4, reflective strip; 5, rest mechanism; 501, first bevel gear set; 502, first knob; 503, first worm; 504, first worm gear; 505, rest stool board; 506, connecting box; 507, second bevel gear set; 508, second knob; 509, second worm; 510, second worm gear; 511, support rod; 512, hanging hook; 6, installation mechanism; 601, installation box; 602, threaded rod; 603, third knob; 604, installation clamping rod; 605, chute; 606, installation card slot; 7, conversion mechanism; 701, nut; 702, bolt; 703, positioning groove; 8, control box. Detailed implementation manners

[0042] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, elaborate in detail on the specific implementation manners, structures, features, and effects of the present invention as follows.

[0043] Embodiment 1:

[0044] Please refer to Figures 1 to 11 , this embodiment provides a warning fence for road engineering construction, including a first warning fence 1. The first warning fence 1 includes a connecting shaft 2 and a second warning fence 3. A connecting shaft 2 is rotatably connected to the side wall of the first warning fence 1, and a second warning fence 3 is snap-fitted to the outer wall of the connecting shaft 2. A reflective strip 4 is provided on the outer wall of the first warning fence 1.

[0045] Embodiment 2:

[0046] Based on Embodiment 1, a rest mechanism 5 is further disclosed.

[0047] As Figures 6 - 11 shown, the first warning fence 1 further includes:

[0048] A control box 8, fixedly connected to the outer wall of the first warning fence 1;

[0049] A rest mechanism 5, provided on the outer wall of the first warning fence 1 for construction workers to take breaks during daily construction;

[0050] The control box 8 is respectively provided in one-to-one correspondence with the first warning fence 1 and the second warning fence 3;

[0051] An installation mechanism 6, provided on the outer wall of the connecting shaft 2;

[0052] The rest mechanism 5 includes a rest bench board 505. The inner side wall of the control box 8 is rotatably connected with a first bevel gear set 501. The outer wall of the first bevel gear set 501 is fixedly connected with a first knob 502 through a rotating shaft. The outer wall of the first bevel gear set 501 is fixedly connected with a first worm 503. The outer wall of the first worm 503 is engaged with a first worm gear 504 rotatably connected to the inner wall of the control box 8. The rotation center of the first worm gear 504 is fixedly connected with the rest bench board 505 through a rotating shaft. The side wall of the rest bench board 505 is fixedly connected with a connection box 506. The bottom of the rest bench board 505 is rotatably connected with a support rod 511. The outer wall of the support rod 511 is fixedly connected with a hanging hook 512. By setting the rest bench board 505, when the rest bench board 505 is used to assist the construction workers to rest, turning the first knob 502 drives the first worm 503 to rotate through the rotation of the first bevel gear set 501. The rotation of the first worm 503 drives the rest bench board 505 to flip through the connection of the first worm gear 504, and operate the second worm gear 510 in the connection box 506 to drive the support rod 511 to flip, so that the support rod 511 contacts the ground, achieving the effect of improving the stability of the rest bench board 505 when supported on the ground, and playing a role in improving the versatility of the warning fence in daily use.

[0053] As Figure 7 shown, the inner side wall of the connection box 506 is rotatably connected with a second bevel gear set 507. The outer wall of the second bevel gear set 507 is fixedly connected with a second knob 508. The outer wall of the second bevel gear set 507 is fixedly connected with a second worm 509. The outer wall of the second worm 509 is engaged with a second worm gear 510 rotatably connected to the inner side wall of the connection box 506. It is beneficial to drive the convenient adjustment of the use state of the support rod 511 through the setting of the second worm 509 and the second worm gear 510, and it is beneficial to play a role in the relative flipping movement of the rest bench board 505 and the support rod 511 through the setting of the connection box 506, achieving the effect of effectively supporting the bottom of the rest bench board 505 during use.

[0054] As Figure 7 shown, the first worm gear 504 and the control box 8 form a rotating structure through the first bevel gear set 501 and the first worm 503. The rotation center of the first worm gear 504 coincides with the rotation center of the rest bench board 505. It is beneficial to the rotation of the first bevel gear set 501. Through the connection of the first worm 503, drive the first worm gear 504 to rotate along the inner wall of the control box 8, playing a role in driving the convenient flipping movement of the rest bench board 505, playing a role in the convenient conversion of the use state of the rest bench board 505. It is beneficial to achieve the effect of improving the smoothness of the adjustment of the use state of the rest bench board 505 through the coincidence of the rotation center of the first worm gear 504 and the rotation center of the rest bench board 505.

[0055] As Figure 8 shown, the top of the rest stool board 505 is grid-shaped and hollow, and the inside of the rest stool board 505 is hollow. An electric fan is provided inside the rest stool board 505. The grid-shaped and hollow setting of the top of the rest stool board 505 is beneficial for conveniently cooling the resting personnel, achieving the effect of improving the comfort of the resting personnel on the stool board. The electric fan provided inside the rest stool board 505 enables the construction personnel to turn on the electric fan inside the stool board when using the rest stool board 505 on the surface of the warning fence, playing a role in assisting in cooling the construction personnel and achieving the effect of improving the physical and mental comfort of the construction personnel during long-term construction.

[0056] As Figure 6 shown, the outer wall contour of the connecting part of the support rod 511 and the hanging hook 512 is L-shaped. A storage groove is provided at the connecting part of the bottom of the rest stool board 505 and the support rod 511. The L-shaped setting of the outer wall contour of the connecting part of the support rod 511 and the hanging hook 512 is beneficial for conveniently hanging and storing other items of the construction personnel when the stool board is stored, achieving the effect of improving the versatility of the daily use of the warning fence.

[0057] As Figure 7 and Figure 11 shown, a flipping structure is formed between the support rod 511 and the rest stool board 505 through the second worm 509 and the second worm gear 510. There are two groups of support rods 511, and the position distribution of the two groups of support rods 511 is symmetrical about the central axis of the rest stool board 505. The rest stool board 505 is distributed in a straight line on the outer wall of the first warning fence 1. The rotation of the second worm 509 is beneficial. Through the connection of the second worm gear 510, the support rod 511 is driven to perform a flipping movement along the bottom of the rest stool board 505, playing a role in improving the support stability of the rest stool board 505 during use. The setting of two groups of support rods 511 with a position distribution symmetrical about the central axis of the rest stool board 505 is beneficial for improving the stable support and use of the rest stool board 505 in the use state.

[0058] As Figures 4 - 5As shown in the figure, the installation mechanism 6 includes an installation clamping rod 604. A mounting box 601 is fixedly connected to the top of the second warning fence 3. A threaded rod 602 is rotatably connected to the inner wall of the mounting box 601. One end of the threaded rod 602 is fixedly connected to a third knob 603. An installation clamping rod 604 that is threadedly connected to the outer wall of the threaded rod 602 and slidably connected to the outer wall of the mounting box 601 is provided. A chute 605 is formed at the connecting portion between the outer wall of the mounting box 601 and the installation clamping rod 604. An installation slot 606 is formed at the connecting portion between the outer wall of the connecting shaft 2 and the installation clamping rod 604. By providing the installation clamping rod 604, when it is necessary to fence a large construction area with warning fences, in order to improve the convenience of clamping and splicing between the warning fences, after splicing the warning fences, rotate the third knob 603. Through the rotation of the threaded rod 602, drive the installation clamping rod 604 to slide along the inner wall of the chute 605, and make the installation clamping rod 604 insert into the inner wall of the installation slot 606, which plays a role in improving the convenience of splicing and using between the warning fences.

[0059] As Figures 4 - 5 As shown in the figure, the installation clamping rod 604 constitutes a sliding structure between the threaded rod 602 and the chute 605. There are two groups of threaded rods 602, and the rotation directions of the two groups of threaded rods 602 are opposite. The second warning fence 3 constitutes a clamping structure with the first warning fence 1 through the installation clamping rod 604 and the installation slot 606. There are two groups of installation clamping rods 604 and installation slots 606, and the positions of the two groups of installation clamping rods 604 and installation slots 606 are distributed symmetrically about the central axis of the connecting shaft 2, which is beneficial to the rotation of the threaded rod 602, driving the installation clamping rod 604 to slide along the inner wall of the chute 605, playing a role in driving the relative sliding of the installation clamping rod 604, being beneficial to the installation clamping rod 604 to slide along the inner wall of the installation slot 606, driving the second warning fence 3 to be conveniently clamped and installed with the first warning fence 1, playing a role in improving the efficient splicing and use between the warning fences, being beneficial to improving the splicing and use stability between the warning fences by providing two groups of installation clamping rods 604 and installation slots 606 whose positions are distributed symmetrically about the central axis of the connecting shaft 2, and being beneficial to driving the relative sliding of the two groups of installation clamping rods 604 by providing two groups of threaded rods 602 with opposite rotation directions.

[0060] As Figures 4 - 5 shown

[0061] The conversion mechanism 7 is arranged on the outer wall of the connecting shaft 2;

[0062] The conversion mechanism 7 includes a positioning groove 703. At the top of the first warning fence 1, there is a nut 701. The inner wall of the nut 701 is threadedly connected to a bolt 702 that is slidably connected to the outer wall of the connecting shaft 2. A positioning groove 703 is provided at the connecting part between the outer wall of the connecting shaft 2 and the bolt 702. By providing the positioning groove 703, when it is necessary to convert the protection of the construction area, in order to improve the convenience of flipping and using after splicing between the warning fences, the connecting shaft 2 can be rotated, and the bolt 702 can be rotated. Through the limiting effect of the nut 701, the bolt 702 slides into the positioning groove 703, playing a role in conveniently adjusting the splicing angle between the warning fences, and achieving the effect of converting the protection of construction areas with different shapes.

[0063] As Figure 4 shown, the connecting shaft 2 and the first warning fence 1 form a clamping structure through the bolt 702 and the positioning groove 703. There are four groups of positioning grooves 703, and the positions of the four groups of positioning grooves 703 are annularly distributed about the central axis of the connecting shaft 2, which is beneficial for the bolt 702 to slide along the inner wall of the positioning groove 703, driving the connecting shaft 2 to perform a clamping and flipping movement on the side wall of the first warning fence 1, playing a role in conveniently adjusting the splicing angle between the warning fences, and achieving the effect of improving the conversion protection of different construction area areas.

[0064] Working principle:

[0065] As Figures 1 - 11 shown, when the warning fence for construction is in use, first, when the rest stool board 505 is used to assist the construction personnel to rest, by rotating the first knob 502, through the rotation of the first bevel gear set 501, the first worm 503 is driven to perform a rotational movement. The rotation of the first worm 503 drives the rest stool board 505 to perform a flipping movement through the connection of the first worm gear 504, and the second worm gear 510 in the connection box 506 is operated to drive the support rod 511 to perform a flipping movement, so that the support rod 511 contacts the ground, achieving the effect of improving the stability of the rest stool board 505 and the ground support, and playing a role in improving the versatility of the warning fence in daily use;

[0066] Next, an electric fan is provided inside the rest stool board 505. When the construction personnel use the rest stool board 505 on the surface of the warning fence, the electric fan inside the stool board is turned on, playing a role in assisting in cooling the construction personnel, achieving the effect of improving the physical and mental comfort of the construction personnel during long-term construction. At the same time, in hot weather, it can reduce the irritability of the construction personnel, and can cool and cool the construction personnel in time to prevent the construction personnel from suffering from heat stroke, thereby improving the safety of the warning fence for road construction protection;

[0067] Next, when it is necessary to fence a large-scale construction area with warning fences, in order to improve the convenience of clamping and splicing between the warning fences, after splicing the warning fences, rotate the third knob 603. Through the rotation of the threaded rod 602, drive the installation clamping rod 604 to slide along the inner wall of the chute 605, and make the installation clamping rod 604 insert into the inner wall of the installation clamping groove 606, which plays a role in improving the convenience of splicing and using between the warning fences, and improves the efficiency of the construction personnel's protection operation on the road construction area;

[0068] Finally, when it is necessary to convert the protection of the construction area, in order to improve the convenience of flipping and using between the warning fences after splicing, the connecting shaft 2 can be rotated, and the bolt 702 is rotated. Through the limiting effect of the nut 701, the bolt 702 slides into the positioning groove 703, which plays a role in conveniently adjusting the splicing angle between the warning fences, achieves the effect of converting the protection of construction areas with different shapes, meets the need for converting the protection of the construction scope of different areas, and reduces the tediousness of the staff's frequent disassembly and reinstallation of the warning fences.

[0069] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to be equivalent embodiments within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A warning fence for road engineering construction, comprising a first warning fence (1), characterized in that: The first warning fence (1) comprises a connecting shaft (2) and a second warning fence (3); the side wall of the first warning fence (1) is rotatably connected to the connecting shaft (2); the outer wall of the connecting shaft (2) is snap-connected to the second warning fence (3); and the outer wall of the first warning fence (1) is provided with a reflective strip (4); The first warning fence (1) further comprises: A control box (8) fixedly connected to the outer wall of the first warning fence (1); A rest mechanism (5) is arranged on the outer wall of the first guardrail (1) and is used for construction workers to rest during daily construction. The control box (8) is respectively arranged in a one-to-one correspondence between the first warning fence (1) and the second warning fence (3); A mounting mechanism (6) is arranged on the outer wall of the connecting shaft (2); A conversion mechanism (7) is arranged on the outer wall of the connecting shaft (2); The rest mechanism (5) comprises a rest bench board (505); the inner wall of the control box (8) is rotatably connected to a first bevel gear set (501); the outer wall of the first bevel gear set (501) is fixedly connected to a first knob (502) via a rotating shaft; the outer wall of the first bevel gear set (501) is fixedly connected to a first worm (503); the outer wall of the first worm (503) is meshed with a first worm wheel (504) rotatably connected to the inner wall of the control box (8); the rotation center of the first worm wheel (504) is fixedly connected to the rest bench board (505) via a rotating shaft; the side wall of the rest bench board (505) is fixedly connected to a connecting box (506); the bottom of the rest bench board (505) is rotatably connected to a support rod (511); the outer wall of the support rod (511) is fixedly connected to a hanging hook (512).

2. A warning fence for road engineering construction according to claim 1, characterized in that: The inner wall of the connecting box (506) is rotatably connected to a second bevel gear set (507), the outer wall of the second bevel gear set (507) is fixedly connected to a second knob (508), the outer wall of the second bevel gear set (507) is fixedly connected to a second worm (509), and the outer wall of the second worm (509) is meshed with a second worm wheel (510) rotatably connected to the inner wall of the connecting box (506).

3. A warning fence for road engineering construction according to claim 1, characterized in that: The first worm gear (504) forms a rotating structure with the control box (8) through the first bevel gear set (501) and the first worm (503), and the rotation center of the first worm gear (504) and the rotation center of the rest bench board (505) are arranged to overlap with each other.

4. A warning fence for road engineering construction according to claim 1, characterized in that: The top of the rest bench board (505) is in a grid-like hollow shape, the interior of the rest bench board (505) is in a hollow shape, and an electric fan is arranged inside the rest bench board (505).

5. A warning fence for road engineering construction according to claim 1, characterized in that: The outer wall profile of the connection part between the support rod (511) and the hanging hook (512) is L-shaped, and a storage groove is provided at the connection part between the bottom of the rest bench board (505) and the support rod (511).

6. A warning fence for road engineering construction according to claim 2, characterized in that: The support rod (511) forms a flip structure with the rest bench plate (505) through the second worm gear (509) and the second worm wheel (510), and two groups of support rods (511) are provided. The positions of the two groups of support rods (511) are symmetrical about the central axis of the rest bench plate (505), and the rest bench plates (505) are distributed in a straight line on the outer wall of the first warning fence (1).

7. A warning fence for road engineering construction according to claim 1, characterized in that: The mounting mechanism (6) comprises a mounting rod (604); a mounting box (601) is fixedly connected to the top of the second warning fence (3); a threaded rod (602) is rotatably connected to the inner wall of the mounting box (601); a third knob (603) is fixedly connected to one end of the threaded rod (602); an outer wall of the threaded rod (602) is threadedly connected to a mounting rod (604) slidably connected to the outer wall of the mounting box (601); a sliding groove (605) is provided at a connection position between the outer wall of the mounting box (601) and the mounting rod (604); and a mounting groove (606) is provided at a connection position between the outer wall of the connecting shaft (2) and the mounting rod (604).

8. A warning fence for road engineering construction according to claim 7, characterized in that: The installation clamp rod (604) forms a sliding structure between the threaded rod (602) and the slide groove (605), and the threaded rod (602) is provided in two groups, and the rotation directions of the two groups of threaded rods (602) are opposite. The second warning fence (3) forms a clamping structure with the first warning fence (1) through the installation clamp rod (604) and the installation groove (606), and the installation clamp rod (604) and the installation groove (606) are both provided in two groups, and the position distribution of the two groups of the installation clamp rod (604) and the installation groove (606) is symmetrical about the central axis of the connecting shaft (2).

9. A warning fence for road engineering construction according to claim 1, characterized in that: The conversion mechanism (7) comprises a positioning groove (703); a nut (701) is arranged at the top of the first warning fence (1); the inner wall of the nut (701) is threadedly connected with a bolt (702) which is slidably connected to the outer wall of the connecting shaft (2); and a positioning groove (703) is provided at the connection portion between the outer wall of the connecting shaft (2) and the bolt (702).

10. A warning fence for road engineering construction according to claim 9, characterized in that: The connecting shaft (2) forms a snap-fit ​​structure with the first warning fence (1) through bolts (702) and positioning grooves (703), and four groups of positioning grooves (703) are provided. The positions of the four groups of positioning grooves (703) are distributed in a ring shape with respect to the central axis of the connecting shaft (2).

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