Highway construction safety early warning device

Abstract

The invention discloses an expressway construction safety early warning device which comprises an early warning box, a standing pile, a plurality of air bag pipes and a buffer assembly, an air blower is arranged on the early warning box, the air bag pipes are connected with one another to form a blocking pipe, one end of the blocking pipe is connected with the air blower, the other end of the blocking pipe is connected with the standing pile, and the air blower is connected with the standing pile. A height adjusting assembly is further arranged on the early warning box and used for controlling the stopping pipe to move up and down, the buffering assembly comprises a vertical plate, a groove is formed in the vertical plate, a first spring is arranged in the groove, a sliding block is fixedly connected to the middle of the first spring, a connecting rod is fixedly connected to the side wall of the sliding block, and the connecting rod is fixedly connected to the side wall of the connecting rod. A clamping assembly is arranged at the end of the connecting rod, the clamping assembly is connected with the blocking pipe, a clamping sleeve is further arranged on the vertical plate, the clamping sleeve is connected with a roadside fence in a clamping mode, and the early warning effect is obvious and stable.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic safety early warning, and in particular to a highway construction safety early warning device. Background Art

[0002] In today's highway maintenance and management work, ordinary reflective cones are usually used as temporary isolation zones, which can only serve as a visual warning. However, due to complex factors such as weather, noise, fatigue driving, illegal overtaking and even drunk driving, drivers may easily ignore the cones and hit road maintenance workers working in the middle of the road. The safety situation is not optimistic and the chance of accidental injury is greatly increased. A typical highway construction situation is as follows: Figure 1 The Traffic Management Bureau of the Ministry of Public Security of my country has not yet established a statistical system for traffic accidents in maintenance operation areas. Only some domestic scholars have studied specific maintenance operation projects. The relevant research results show that the severity of accidents in highway maintenance operation areas is higher than that in non-construction periods.

[0003] In a Chinese patent with publication number CN217500010U, a highway construction safety warning device is disclosed, including a mounting chamber, a support plate is fixedly connected to the back of the mounting chamber, a warning sign is movably mounted on the back of the mounting chamber, two mounting blocks are fixedly connected to the front of the warning sign, a lifting assembly is provided on the mounting chamber, a mounting mechanism is provided on the mounting chamber, the mounting mechanism includes a first motor fixedly mounted on the top of the mounting chamber, a worm is fixedly connected to the output shaft of the first motor, and a threaded rod is movably connected inside the mounting chamber. This highway construction safety warning device, by providing a mounting mechanism, allows the warning sign and the mounting chamber to be detachably mounted, changing the traditional fixed connection between the warning sign and the bracket, making it easier to replace and repair the warning sign. The operation is simple, and the device is more convenient to carry and transport after disassembly, which is convenient for users to use and improves the practicality of the device. However, the warning method of this invention is no different from that commonly used in the prior art. Simply changing the connection relationship between the warning sign and the bracket cannot directly reflect the improvement of the warning effect.

[0004] In the Chinese patent publication number CN211979868U, a highway construction early warning device is disclosed, comprising a safety monitoring host and a safety reminder bracelet, wherein the safety reminder bracelet comprises a bracelet control unit, an alarm unit, a wireless communication unit and a power supply unit; the safety reminder bracelet is connected to the safety monitoring host via the wireless communication unit and is used as a device for highway construction safety early warning. The device detects the speed and position of vehicles in the 200-meter section ahead via a 77GHz radar, and intelligently calculates whether the vehicle is likely to enter the rear construction area. If the vehicle is likely to enter the rear construction area, an alarm signal is sent via LoRa to the safety reminder bracelet worn by the construction worker. After receiving the alarm signal, the bracelet vibrates through a vibration motor to alert the wearer to achieve the early warning effect. However, this patent relies too much on the system, and the bracelet is easily damaged during construction by the worker, and the early warning effect is unstable.

[0005] Therefore, it is urgent to develop a highway construction safety early warning device to ensure the personal safety of maintenance personnel and drivers. Summary of the Invention

[0006] The purpose of the present invention is to provide a highway construction safety early warning device to solve the problems raised in the above background technology.

[0007] The technical solution of the present invention is: a highway construction safety early warning device, comprising an early warning box, a station stake, a plurality of airbag tubes, and a buffer assembly, wherein the early warning box is provided with a blower, and a plurality of airbag tube groups are interconnected to form a blocking tube, one end of the blocking tube is connected to the blower, and the other end of the blocking tube is connected to the station stake;

[0008] The warning box is also provided with a height adjustment component, which is used to control the up and down movement of the barrier tube;

[0009] The buffer assembly includes a vertical plate, a groove is provided in the vertical plate, a first spring is arranged in the groove, a slider is fixedly connected to the middle part of the first spring, a connecting rod is fixedly connected to the side wall of the slider, a clamping assembly is provided at the end of the connecting rod, the clamping assembly is connected to the blocking tube, and a clamping sleeve is also provided on the vertical plate, and the clamping sleeve is clamped and connected to the roadside fence.

[0010] Preferably, the warning box is provided with a blue and red light group and an announcer, and the warning box is also provided with a flagpole, and a rotating component for driving the flagpole to rotate is provided in the warning box.

[0011] Preferably, the rotating assembly includes a drive motor, a first mounting slot is opened in the early warning box, the drive motor is fixed in the first mounting slot, a first bevel gear is fixedly connected to the output shaft of the drive motor, the bottom of the flagpole is inserted into the first mounting slot, and the top of the first bevel gear is fixedly connected to the flagpole.

[0012] Preferably, a cleaning rod is rotatably connected to the warning box, one end of the cleaning rod is inserted into the first mounting groove, one end of the cleaning rod is fixedly connected to a second bevel gear, the second bevel gear is meshed with the first bevel gear, and the other end of the cleaning rod is fixedly connected to a wiping block.

[0013] Preferably, a sealing oil plug is provided at the connection where the cleaning rod passes through the warning box.

[0014] Preferably, a speeding camera is also provided on the top of the warning box.

[0015] Preferably, two mounting brackets are symmetrically fixedly connected to the bottom of the warning box, and rollers are rotatably connected to the mounting brackets. A second mounting slot is also provided on the warning box, and a first electric telescopic rod is fixedly connected in the second mounting slot. A linkage plate is fixedly connected to the top of the first electric telescopic rod, and two vertical poles are symmetrically fixedly connected to the bottom of the linkage plate, and a base plate is fixedly connected to the bottom of the vertical poles.

[0016] Preferably, the height adjustment component includes a second electric telescopic rod, a pull plate is fixedly connected to the top of the second electric telescopic rod, and the pull plate is fixedly connected to the blower.

[0017] Preferably, the clamping assembly includes a bottom ring and a top ring, the bottom ring is fixedly connected to the connecting rod, a ring groove is provided in the bottom ring, one end of the bottom ring is embedded in the ring groove, and a second spring is provided in the ring groove, the second spring is fixedly connected to one end of the bottom ring, and the other end of the bottom ring is fixedly connected to a pull plate.

[0018] Preferably, retaining rings are fixedly connected to both ends of the airbag tube, and an inner ring and an outer ring are sleeved on the airbag tube.

[0019] The present invention provides a highway construction safety early warning device through improvement, which has the following improvements and advantages compared with the prior art:

[0020] First, the present invention can conveniently adjust the overall length of the barrier tube according to the different construction lengths. While blocking the vehicle, the barrier tube can cushion the impact of the vehicle to improve safety. At the same time, the barrier tube is spread throughout the entire construction section. When workers are working in an area where they cannot visually see the vehicle situation, they can judge whether a vehicle has collided into the construction area by the change in the position of the barrier tube, which plays an early warning role and further improves construction safety.

[0021] Second, the blue and red light group in the present invention provides light warning for oncoming vehicles, the announcer provides voice warning for vehicles, and the flagpole provides flag waving warning for vehicles.

[0022] Third: When the driving motor in the present invention rotates, it can drive the first bevel gear to rotate, thereby driving the flagpole to rotate, thereby increasing the conspicuousness of the flag on the flagpole and improving the early warning effect, and the first bevel gear will drive the second bevel gear to rotate, and the second bevel gear can drive the cleaning rod and the wiping block to rotate. The wiping block can clean the blue and red light group and the announcer, thereby improving the early warning effect, such as adsorbing debris, rainwater, etc.

[0023] Fourthly, when the warning box is moved, the rollers of the present invention are in contact with the ground, which improves the convenience of movement. When the warning box reaches the designated position, the first electric telescopic rod controls the linkage plate to move downward, thereby the vertical rod drives the bottom plate to move downward, so that the bottom plate contacts the ground, achieving a stable standing effect, and flexibly adjusting the contact mode between the warning box and the ground to improve practicality.

[0024] Fifth, the inner and outer rings of the present invention are threadedly connected, thereby improving the convenience of connecting multiple airbag tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first perspective;

[0027] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0028] Figure 3 is a schematic cross-sectional view of the airbag tube in the present invention;

[0029] Figure 4 is a schematic cross-sectional view of a vertical plate of the present invention;

[0030] Figure 5 It is a cross-sectional schematic diagram of the top ring and the bottom ring of the present invention;

[0031] Figure 6 This is a schematic cross-sectional view of the early warning box of the present invention;

[0032] Figure 7 for Figure 6 A magnified view of point A in the figure;

[0033] Figure 8 It is a cross-sectional schematic diagram of the second installation groove of the present invention.

[0034] In the figure: 1. Warning box; 101. Blower; 102. Blue and red light assembly; 103. Announcer; 104. Flagpole; 105. Drive motor; 106. First mounting slot; 107. First bevel gear; 108. Cleaning rod; 109. Second bevel gear; 110. Wiping block; 111. Sealing oil plug; 112. Speed camera; 2. Standing pile; 3. Airbag tube; 301. Retaining ring; 302. Inner ring; 303. Outer ring; 4 , vertical plate; 401, groove; 402, first spring; 403, slider; 404, connecting rod; 405, sleeve; 5, mounting frame; 501, roller; 502, second mounting groove; 503, first electric telescopic rod; 504, linkage plate; 505, vertical pole; 506, bottom plate; 6, second electric telescopic rod; 601, pull plate; 7, bottom ring; 701, top ring; 702, ring groove; 703, second spring; 704, pull plate. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0037] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0040] like Figures 1-8 As shown, an embodiment of the present invention provides a highway construction safety warning device, including a warning box 1, a station stake 2, multiple airbag tubes 3, and a buffer assembly. The warning box 1 is provided with a blower 101. The multiple airbag tubes 3 are interconnected to form a blocking tube. One end of the blocking tube is connected to the blower 101, and the other end of the blocking tube is connected to the station stake 2.

[0041] The warning box 1 is also provided with a height adjustment component, which is used to control the up and down movement of the barrier tube;

[0042] The buffer assembly includes a vertical plate 4, a groove 401 is opened in the vertical plate 4, a first spring 402 is arranged in the groove 401, a slider 403 is fixedly connected to the middle of the first spring 402, a connecting rod 404 is fixedly connected to the side wall of the slider 403, a clamping assembly is provided at the end of the connecting rod 404, the clamping assembly is connected to the blocking tube, and a clamping sleeve 405 is also provided on the vertical plate 4, and the clamping sleeve 405 is clamped and connected to the roadside fence.

[0043] Specifically, the warning box 1 is used to issue early warnings to vehicles. A specified number of airbag tubes 3 are spliced according to the length of the construction section. The multiple airbag tubes 3 form a blocking tube. The blower 101 inflates the blocking tube, which can block the edge of the construction section. When the vehicle is under time control, the blocking tube can block the vehicle, forming a blocking effect and reducing the vehicle speed.

[0044] The vertical plate 4 is connected to the fence through the clamping sleeve 405. When the blocking tube is hit, the connecting rod 404 can move up and down in the groove 401 through the slider 403 and the first spring 402, thereby buffering the impact force and improving the interception strength of the blocking tube.

[0045] It is understandable that the overall length of the barrier pipe can be easily adjusted according to the different construction lengths. While blocking vehicles, the barrier pipe can also cushion the impact of vehicles, thereby improving safety. At the same time, the barrier pipe is spread throughout the entire construction section. When workers are working in areas where they cannot visually see the situation of vehicles, they can judge whether a vehicle has collided into the construction area by the change in the position of the barrier pipe, thereby playing an early warning role and further improving construction safety.

[0046] The height adjustment component can control the up and down movement of the barrier pipe. When a construction vehicle enters, raising the barrier pipe can facilitate the entry and exit of the construction vehicle.

[0047] The warning box 1 is provided with a blue and red light group 102 and a broadcaster 103 . The warning box 1 is also provided with a flagpole 104 . A rotating component for driving the flagpole 104 to rotate is provided inside the warning box 1 .

[0048] The rotating assembly includes a drive motor 105. A first mounting groove 106 is opened in the early warning box 1. The drive motor 105 is fixed in the first mounting groove 106. A first bevel gear 107 is fixedly connected to the output shaft of the drive motor 105. The bottom of the flagpole 104 is inserted into the first mounting groove 106. The top of the first bevel gear 107 is fixedly connected to the flagpole 104.

[0049] A cleaning rod 108 is rotatably connected to the warning box 1, one end of the cleaning rod 108 is inserted into the first mounting groove 106, one end of the cleaning rod 108 is fixedly connected to the second bevel gear 109, the second bevel gear 109 is meshed with the first bevel gear 107, and the other end of the cleaning rod 108 is fixedly connected to the wiping block 110.

[0050] Specifically: the blue and red light group 102 provides light warning for oncoming vehicles, the announcer 103 provides voice warning for vehicles, and the flagpole 104 provides flag waving warning for vehicles;

[0051] Among them, when the driving motor 105 rotates, it can drive the first bevel gear 107 to rotate, thereby driving the flagpole 104 to rotate, improving the conspicuousness of the flag on the flagpole 104, and improving the early warning effect, and the first bevel gear 107 will drive the second bevel gear 109 to rotate, and the second bevel gear 109 can drive the cleaning rod 108 and the wiping block 110 to rotate. The wiping block 110 can clean the blue and red light group 102 and the announcer 103 to improve the early warning effect, such as adsorbent debris, rainwater, etc.

[0052] A sealing oil plug 111 is provided at the connection point where the cleaning rod 108 passes through the warning box 1 . The sealing oil plug 111 can improve the sealing performance and prevent rainwater from entering the interior of the warning box 1 .

[0053] A speeding camera 112 is also provided on the top of the warning box 1. The speeding camera 112 adopts the traffic speeding camera system in the existing technology, which can take photos of vehicles passing through the construction area at high speed and keep them as evidence.

[0054] Two mounting brackets 5 are symmetrically fixedly connected to the bottom of the warning box 1, and a roller 501 is rotatably connected to the mounting bracket 5. A second mounting groove 502 is also provided on the warning box 1, and a first electric telescopic rod 503 is fixedly connected in the second mounting groove 502. A linkage plate 504 is fixedly connected to the top of the first electric telescopic rod 503, and two vertical poles 505 are symmetrically fixedly connected to the bottom of the linkage plate 504, and a bottom plate 506 is fixedly connected to the bottom of the vertical pole 505.

[0055] Specifically: when the warning box 1 is moved, the roller 501 contacts the ground, which improves the convenience of movement. When the warning box 1 reaches the designated position, the first electric telescopic rod 503 controls the linkage plate 504 to move downward, so that the vertical rod 505 drives the bottom plate 506 to move downward, so that the bottom plate 506 contacts the ground, achieving a stable standing effect, and flexibly adjusting the contact mode of the warning box 1 with the ground to improve practicality.

[0056] The height adjustment component includes a second electric telescopic rod 6, and a pull plate 601 is fixedly connected to the top of the second electric telescopic rod 6. The pull plate 601 is fixedly connected to the blower 101. The second electric telescopic rod 6 drives the blower 101 to move up and down through the pull plate 601, thereby driving the blocking tube to move up and down, and the standing pile 2 is a telescopic sleeve structure, which can adapt to the up and down movement of the blocking tube.

[0057] The clamping assembly includes a bottom ring 7 and a top ring 701. The bottom ring 7 is fixedly connected to the connecting rod 404. A ring groove 702 is provided in the bottom ring 7. One end of the bottom ring 7 is embedded in the ring groove 702, and a second spring 703 is provided in the ring groove 702. The second spring 703 is fixedly connected to one end of the bottom ring 7, and the other end of the bottom ring 7 is fixedly connected to a pull plate 704.

[0058] Specifically: the top ring 701 can elastically rotate along the ring groove 702, so that the top ring 701 and the bottom ring 7 can be sleeved on the outer peripheral wall of the barrier tube, and the top ring 701 and the bottom ring 7 are closed by the second spring 703 to realize the connection between the clamping assembly and the barrier tube.

[0059] A retaining ring 301 is fixedly connected to both ends of the airbag tube 3, and an inner ring 302 and an outer ring 303 are sleeved on the airbag tube 3. The inner ring 302 and the outer ring 303 are threadedly connected to improve the convenience of connecting multiple airbag tubes 3.

[0060] Working principle: The blue and red light group 102 provides light warning for oncoming vehicles, the announcer 103 provides voice warning for vehicles, and the flagpole 104 provides flag-waving warning for vehicles. When the drive motor 105 rotates, it can drive the first bevel gear 107 to rotate, thereby driving the flagpole 104 to rotate, improving the conspicuousness of the flag on the flagpole 104 and enhancing the warning effect. The first bevel gear 107 will drive the second bevel gear 109 to rotate, and the second bevel gear 109 can drive the cleaning rod 108 and the wiping block 110 to rotate. The wiping block 110 can clean the blue and red light group 102 and the announcer 103, thereby improving the warning effect, such as adsorbing debris, rainwater, etc.

[0061] According to the length of the construction section, a specified number of airbag tubes 3 are spliced together. Multiple airbag tubes 3 form a blocking tube, which is inflated by the blower 101. The blocking tube can block the edge of the construction section. When the vehicle is time-controlled, the blocking tube can block the vehicle, forming a blocking effect and reducing the speed. Among them, the vertical plate 4 is connected to the fence through the clamping sleeve 405. When the blocking tube is hit, the connecting rod 404 can move up and down in the groove 401 through the slider 403 and the first spring 402, thereby buffering the impact force and improving the interception strength of the blocking tube. The height adjustment component can control the up and down movement of the blocking pipe. When a construction vehicle enters, raising the blocking pipe can facilitate the entry and exit of the construction vehicle. The present invention can conveniently adjust the overall length of the blocking pipe according to the different construction lengths. While blocking the vehicle, the blocking pipe can buffer the impact of the vehicle and improve safety. At the same time, the blocking pipe is spread throughout the entire construction section. When workers are working in an area where they cannot visually see the vehicle situation, they can judge whether a vehicle has collided into the construction area by the change in the position of the blocking pipe, which plays an early warning role and further improves construction safety.

[0062] The above description is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A highway construction safety warning device, comprising a warning box (1), a station pile (2), a plurality of airbag tubes (3) and a buffer assembly, characterized in that: The warning box (1) is provided with a blower (101), and a plurality of air bag tubes (3) are connected to each other to form a blocking tube, one end of the blocking tube is connected to the blower (101), and the other end of the blocking tube is connected to the standing pile (2); The warning box (1) is also provided with a height adjustment component, and the height adjustment component is used to control the upward and downward movement of the blocking tube; The buffer assembly comprises a vertical plate (4), a groove (401) is provided in the vertical plate (4), a first spring (402) is arranged in the groove (401), a slider (403) is fixedly connected to the middle of the first spring (402), a connecting rod (404) is fixedly connected to the side wall of the slider (403), a clamping assembly is provided at the end of the connecting rod (404), the clamping assembly is connected to the blocking tube, and a clamping sleeve (405) is further provided on the vertical plate (4), and the clamping sleeve (405) is clamped and connected to the roadside fence.

2. The highway construction safety early warning device according to claim 1, characterized in that: The warning box (1) is provided with a blue and red light group (102) and a broadcaster (103), and the warning box (1) is also provided with a flagpole (104). A rotating assembly for driving the flagpole (104) to rotate is provided in the warning box (1).

3. The highway construction safety early warning device according to claim 2, characterized in that: The rotating assembly comprises a driving motor (105), a first mounting groove (106) is provided in the warning box (1), the driving motor (105) is fixed in the first mounting groove (106), a first bevel gear (107) is fixedly connected to the output shaft of the driving motor (105), the bottom of the flagpole (104) is inserted into the first mounting groove (106), and the top of the first bevel gear (107) is fixedly connected to the flagpole (104).

4. The highway construction safety early warning device according to claim 3, characterized in that: A cleaning rod (108) is rotatably connected to the warning box (1), one end of the cleaning rod (108) is inserted into the first mounting groove (106), one end of the cleaning rod (108) is fixedly connected to a second bevel gear (109), the second bevel gear (109) is meshed with the first bevel gear (107), and the other end of the cleaning rod (108) is fixedly connected to a wiping block (110).

5. The highway construction safety early warning device according to claim 4, characterized in that: A sealing oil plug (111) is provided at the connection point where the cleaning rod (108) passes through the warning box (1).

6. The highway construction safety early warning device according to claim 1, characterized in that: A speed camera (112) is also provided on the top of the warning box (1).

7. The highway construction safety early warning device according to claim 1, characterized in that: The warning box (1) is symmetrically fixedly connected to two mounting brackets (5) at the bottom, and a roller (501) is rotatably connected to the mounting brackets (5). The warning box (1) is also provided with a second mounting groove (502), and a first electric telescopic rod (503) is fixedly connected in the second mounting groove (502). The top of the first electric telescopic rod (503) is fixedly connected to a linkage plate (504), and the bottom of the linkage plate (504) is symmetrically fixedly connected to two vertical poles (505), and the bottom of the vertical pole (505) is fixedly connected to a bottom plate (506).

8. The highway construction safety early warning device according to claim 1, characterized in that: The height adjustment assembly comprises a second electric telescopic rod (6), a pull plate (601) is fixedly connected to the top of the second electric telescopic rod (6), and the pull plate (601) is fixedly connected to the blower (101).

9. The highway construction safety early warning device according to claim 1, characterized in that: The clamping assembly comprises a bottom ring (7) and a top ring (701), the bottom ring (7) is fixedly connected to the connecting rod (404), a ring groove (702) is provided in the bottom ring (7), one end of the bottom ring (7) is embedded in the ring groove (702), and a second spring (703) is provided in the ring groove (702), the second spring (703) is fixedly connected to one end of the bottom ring (7), and the other end of the bottom ring (7) is fixedly connected to a pull plate (704).

10. The highway construction safety early warning device according to claim 1, characterized in that: The two ends of the airbag tube (3) are respectively fixedly connected with retaining rings (301), and the airbag tube (3) is sleeved with an inner ring (302) and an outer ring (303).

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