Emergency protection device for road construction operation

Abstract

The invention relates to the technical field of road construction, in particular to a road construction operation emergency protection device which comprises a first support. The first support is provided with an open-close baffle and a second support, and the first support and the second support are connected through a buffer structure. A rotating fence is mounted on the second bracket; a corner structure is arranged on the rotating fence; a supporting seat is fixedly mounted on the second bracket; a brake block is embedded on the supporting seat in a sliding manner; a brake structure is arranged on the brake block; when the rotating fence is impacted, impact force generated by impact can drive the corner structure to act so as to drive the rotating fence to move towards the first support, and therefore the included angle of the rotating fence can be changed. In the process, the brake structure acts to increase the friction force between the brake block and the ground; the corner structure, the brake structure and the buffer structure are matched with one another, so that impact force generated by collision can be counteracted to the maximum extent; the probability of dangerous situations is reduced, so that the life safety of constructors is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of road construction, and specifically to an emergency protection device for road construction operations. Background Art

[0002] Common road maintenance or repair is carried out in a semi-width construction method, that is, one side of the road is closed and the other side is opened to relieve traffic pressure. The closure of the construction area is usually carried out by setting up enclosure fences; that is, the construction area is surrounded by enclosures, and construction workers carry out operations inside the enclosures; Common enclosure fences include enclosures, fixed brackets, movable brackets, and buffer devices; when in use, the fixed brackets are fixed to the ground, the movable brackets are placed outside the construction area, the enclosures connect the fixed brackets and the movable brackets, and the buffer devices are arranged on the enclosures; since the road remains open to traffic during construction, through the buffer structure, the impact force can be reduced when the vehicle collides with the enclosure fence, thus protecting the lives of construction workers inside the enclosure.

[0003] When closing the road by using the common enclosure fence method, since the impact force is very large when the vehicle collides with the enclosure, it is not very realistic to completely offset the impact force through the buffer structure. When the vehicle speed is relatively fast, after the vehicle collides with the enclosure, it will collide with the construction workers. Although the enclosure can increase the impact area, the impact angle is still perpendicular to the construction workers, and the probability of the construction workers being injured is still relatively large at this time. Summary of the Invention

[0004] The purpose of the present invention is to provide an emergency protection device for road construction operations to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: An emergency protection device for road construction operations, including a first bracket; symmetrically arranged opening and closing enclosures are rotatably installed on the first bracket; A second bracket is arranged on the vehicle-facing surface of the first bracket, and the first bracket and the second bracket are connected by a buffer structure; the buffer structure can drive the second bracket away from the first bracket; A rotating enclosure is slidably installed on the second bracket; a corner structure is arranged on the rotating enclosure; A support seat is fixedly installed on the second bracket; a brake block is slidably fitted on the support seat; a braking structure is arranged on the brake block; When the rotating enclosure is impacted, the impact force generated will drive the corner structure to act, so as to drive the bottom of the rotating enclosure to move towards the first bracket to change the angle between the rotating enclosure and the ground; during this process, the braking structure acts to increase the friction between the brake block and the ground.

[0006] As a further solution of the present invention: the corner structure includes an engaging rod fixedly mounted on the support seat; a hinge block is slidably engaged in the engaging rod; a connecting block connected to the buffer structure is fixedly mounted on the end of the engaging rod away from the second bracket; a return spring is arranged in the engaging rod, and the connecting sections of the return spring respectively abut against the connecting block and the hinge block; an engaging block is fixedly mounted on the upper part of the rotating enclosure; a sliding groove is provided on the second bracket which is slidably engaged with the engaging block; the bottom of the rotating enclosure is rotatably mounted on the hinge block.

[0007] As a further solution of the present invention: the brake structure includes a connecting plate slidably arranged in the support seat, and a telescopic column is fixedly installed on the connecting plate; a telescopic sleeve slidably engaged with the telescopic column is fixedly installed on the brake block; an extrusion spring is arranged in the telescopic sleeve; the two ends of the extrusion spring respectively contact the telescopic column and the brake block; a mating block mating with the hinged block is fixedly installed on the connecting plate, and the mating block is slidably installed on the support seat and passes through the engaging rod.

[0008] As a further solution of the present invention: the buffer structure includes multiple groups of railings, wherein the railings close to the second bracket are fixedly connected to the connecting block; and the railings close to the first bracket are fixedly connected to the first bracket; rollers are rotatably installed on the bottom of the railings, and a mounting seat is fixedly installed on the top of the railings, and a warning light is fixedly installed on the mounting seat.

[0009] As a further solution of the present invention: the buffer structure also includes multiple groups of first diagonal braces and second diagonal braces, the first diagonal braces and the second diagonal braces are rotatably connected, and both are rotatably installed on the railing; connecting shafts are rotatably installed on both ends of the first diagonal braces and the second diagonal braces, and vertical grooves slidably engaged with the connecting shafts are symmetrically opened on the railing; multiple groups of guide rails are fixedly installed on the railing; a slide plate slidably engaged with the guide rails is fixedly installed on the connecting shaft, and a buffer spring is fixedly installed on the bottom of the railing; the other end of the buffer spring is fixedly connected to one of the slide plates.

[0010] As a further solution of the present invention: a wedge is slidably engaged with the top of the railing; a yield spring is provided on the railing, and the two ends of the yield spring are respectively in contact with the railing and the wedge; and the wedge cooperates with the other slide plate.

[0011] As a further solution of the present invention: a base for support is fixedly installed at the bottom of the first bracket, and a plurality of groups of counterweight blocks are movably arranged on the base, and the counterweight blocks are symmetrically arranged.

[0012] As a further solution of the present invention: A pull ring is rotatably installed on the wedge block.

[0013] As a further solution of the present invention: A plurality of grooves are provided on the surface of the brake block in contact with the ground.

[0014] As a further solution of the present invention: A universal wheel is rotatably installed at the bottom of the support base.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the mutual cooperation of the corner structure, the brake structure and the buffer structure, the impact force generated by the impact can be offset to the greatest extent; and by changing the angle of the rotating enclosure through the corner structure, and increasing the impact area between the vehicle and the construction personnel and changing the impact angle through the inclined rotating enclosure, the life safety of the construction personnel can be protected to the greatest extent, so as to avoid dangerous situations such as the construction personnel being involved under the vehicle or being hit and flying, thereby protecting the life safety of the construction personnel. Description of the Drawings

[0016] Figure 1 It is a schematic structural view of an embodiment of an emergency protection device for road construction operations.

[0017] Figure 2 It is a schematic structural view of another perspective of an embodiment of an emergency protection device for road construction operations.

[0018] Figure 3 It is a schematic structural view of the first bracket in an embodiment of an emergency protection device for road construction operations.

[0019] Figure 4 It is a schematic structural view of the second bracket in an embodiment of an emergency protection device for road construction operations.

[0020] Figure 5 It is a schematic structural view of the corner structure in an embodiment of an emergency protection device for road construction operations.

[0021] Figure 6 It is a schematic structural view of the support base in a sectional view perspective in an embodiment of an emergency protection device for road construction operations.

[0022] Figure 7 It is a schematic structural view of the brake structure in an embodiment of an emergency protection device for road construction operations.

[0023] Figure 8 It is a schematic structural view of the buffer structure in an embodiment of an emergency protection device for road construction operations.

[0024] Figure 9 It is a schematic structural view of the railing in an embodiment of an emergency protection device for road construction operations.

[0025] Figure 10It is a schematic structural diagram of the railing from the sectional view angle in the embodiment of the emergency protection device for road construction operations.

[0026] Figure 11 It is Figure 10 a schematic structural diagram of the position A in

[0027] Figure 12 a schematic structural diagram of the yield spring in the embodiment of the emergency protection device for road construction operations.

[0028] In the figure: 1. First bracket; 101. Base; 2. Counterweight; 3. Opening and closing enclosure; 4. Second bracket; 401. Slide groove; 5. Rotating enclosure; 501. Fitting block; 6. Support base; 601. Universal wheel; 7. Fitting rod; 701. Hinge block; 8. Reset spring; 9. Connecting block; 10. Connecting plate; 1001. Fitting block; 1002. Telescopic column; 11. Extrusion spring; 12. Brake block; 1201. Groove; 1202. Telescopic sleeve; 13. Railing; 1301. Mounting seat; 1302. Roller; 1303. Guide rail; 1304. Vertical groove; 14. Warning light; 15. First diagonal brace; 16. Second diagonal brace; 17. Coupling shaft; 1701. Slide plate; 18. Buffer spring; 19. Wedge block; 1901. Pull ring; 20. Yield spring. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] In addition, the elements in the present invention are referred to as "fixed to" or "disposed on" another element, and it can be directly on another element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation mode.

[0031] Please refer to Figures 1 to 12 , in the embodiment of the present invention, an emergency protection device for road construction operations includes a first bracket 1; symmetrically arranged opening and closing enclosures 3 are rotatably installed on the first bracket 1; A second bracket 4 is arranged on the vehicle-facing surface of the first bracket 1, and the first bracket 1 and the second bracket 4 are connected by a buffer structure; the buffer structure can drive the second bracket 4 away from the first bracket 1; A rotating enclosure 5 is slidably installed on the second bracket 4; a corner structure is arranged on the rotating enclosure 5; A support seat 6 is fixedly installed on the second bracket 4; a brake block 12 is slidably fitted on the support seat 6; a braking structure is arranged on the brake block 12; When the rotating enclosure 5 is impacted, the impact force generated by the impact will drive the corner structure to act, so as to drive the bottom of the rotating enclosure 5 to move towards the first bracket 1, so as to change the angle between the rotating enclosure 5 and the ground; during this process, the braking structure acts to increase the friction between the brake block 12 and the ground.

[0032] Taking the embodiment combined with all the features described in this application as an example, when in use, move the device to the construction section, first fix the first bracket 1 so that the first bracket 1 will not easily slide on the ground; in this way, the stability of the device is increased to prevent the device from moving synchronously with the vehicle when impacted, and thus reducing the protection effect of the device on construction workers.

[0033] After that, the construction workers drive the second bracket 4 away from the first bracket 1 through the buffer structure according to the length of the construction section, so that the device can cover the entire construction section; adjusting the coverage area of the device through the buffer structure can effectively reduce the operation difficulty, reduce the construction burden and improve the construction efficiency. After that, the construction workers rotate the opening and closing enclosure 3 to establish a passage into the construction section and keep the passage closed during the construction process to achieve closed construction.

[0034] When the device is impacted, since the second bracket 4 is located on the vehicle-facing surface of the first bracket 1; therefore, the rotating enclosure 5 on the second bracket 4 will contact the vehicle first.

[0035] The impact force generated by the collision will drive the corner structure to act, driving the bottom of the rotating enclosure 5 towards the first support 1. At the same time, the angle between the rotating enclosure 5 and the ground will change, causing the rotating enclosure 5 to tilt away from the first support 1. By increasing the impact area between the vehicle and the construction workers and changing the impact angle through the tilted rotating enclosure 5, the life safety of the construction workers can be maximally protected, avoiding dangerous situations such as the construction workers being involved under the vehicle or being hit and flying.

[0036] The movement of the rotating enclosure 5 will drive the braking structure to act, increasing the squeezing force of the brake block 12 on the ground, thereby increasing the friction force to reduce the kinetic energy generated by the impact, protecting the life safety of the construction workers.

[0037] When the impact force is too large and causes the second support 4 to approach the first support 1, due to the action of the buffer structure, the second support 4 always has a tendency to move away from the first support 1, further offsetting the impact force generated by the collision, thus protecting the life safety of the construction workers.

[0038] Through the mutual cooperation of the corner structure, the braking structure, and the buffer structure, the impact force generated by the collision can be maximally offset. And by changing the angle of the rotating enclosure 5 through the corner structure, the probability of dangerous situations occurring can be reduced, thus protecting the life safety of the construction workers.

[0039] In another embodiment of the present invention, the corner structure includes a fitting rod 7 fixedly installed on the support base 6; a hinge block 701 is slidably fitted inside the fitting rod 7; a connection block 9 connected to the buffer structure is fixedly installed at one end of the fitting rod 7 away from the second support 4; a return spring 8 is arranged inside the fitting rod 7, and the two ends of the return spring 8 respectively abut against the connection block 9 and the hinge block 701; a fitting block 501 is fixedly installed on the upper part of the rotating enclosure 5; a sliding groove 401 slidably fitted with the fitting block 501 is formed on the second support 4; the bottom of the rotating enclosure 5 is rotatably installed on the hinge block 701.

[0040] Taking the embodiment combined with all the features described in this application as an example, when in use, when being impacted, the rotating enclosure 5 will first come into contact with the vehicle, and the impact point will be located at the lower part of the rotating enclosure 5.

[0041] The impact force generated by the collision will cause the bottom of the rotating enclosure 5 to rotate in cooperation with the hinge block 701, and at the same time drive the hinge block 701 to slide on the fitting rod 7 towards the first bracket 1, thereby compressing the return spring 8; during this process, the fitting block 501 will slide downward from the top in the chute 401, thereby changing the angle between the rotating enclosure 5 and the ground; by means of the inclined rotating enclosure 5, the impact area between the vehicle and the construction personnel is increased and the impact angle is changed, which can maximize the protection of the lives of construction personnel and avoid dangerous situations such as construction personnel being involved under the vehicle or being knocked flying.

[0042] And the elastic force of the return spring 8 can keep the rotating enclosure 5 perpendicular to the ground during normal construction to ensure the normal use of the device.

[0043] In another embodiment of the present invention, the braking structure includes a connecting plate 10 slidably disposed in the support base 6, and a telescopic column 1002 is fixedly installed on the connecting plate 10; a telescopic sleeve 1202 slidably fitted with the telescopic column 1002 is fixedly installed on the brake block 12; an extrusion spring 11 is disposed in the telescopic sleeve 1202; both ends of the extrusion spring 11 abut against the telescopic column 1002 and the brake block 12 respectively; a fitting block 1001 cooperating with the hinge block 701 is fixedly installed on the connecting plate 10, and the fitting block 1001 is slidably installed on the support base 6 and penetrates through the fitting rod 7.

[0044] Taking the embodiment in which all the features described in this application are combined as an example, during use, when the hinge block 701 slides in the fitting rod 7, it will abut against the fitting block 1001.

[0045] Both ends of the fitting block 1001 in the length direction are provided as slopes. Through the mutual extrusion of the hinge block 701 and the slopes of the fitting block 1001, the fitting block 1001 will be driven to approach the brake block 12; thereby driving the connecting plate 10 to move synchronously, and driving the telescopic column 1002 to slide inward in the telescopic sleeve 1202 to compress the extrusion spring 11.

[0046] In the initial state, the brake block 12 is in contact with the ground. Through the friction between the brake block 12 and the ground, it can be ensured that during the normal construction process, the second bracket 4 will not move due to external interference such as wind force; and when the extrusion spring 11 is compressed, its elastic force will act on the brake block 12, thereby increasing the extrusion force between the brake block 12 and the ground, thereby increasing the friction between the brake block 12 and the ground, thereby increasing the resistance to the movement of the support base 6 and increasing the resistance to the movement of the second bracket 4.

[0047] Through the interaction of the increased resistance and the impact force, a part of the impact force generated by the collision is offset to protect the lives of construction personnel.

[0048] In another embodiment of the present invention, the buffer structure includes multiple groups of railings 13. Among them, the railing 13 close to the second bracket 4 is fixedly connected to the connection block 9; while the railing 13 close to the first bracket 1 is fixedly connected to the first bracket 1; a roller 1302 is rotatably installed at the bottom of the railing 13, and a mounting seat 1301 is fixedly installed at the top of the railing 13, and a warning light 14 is fixedly installed on the mounting seat 1301.

[0049] Taking the embodiment combining all the features described in this application as an example, during use, multiple groups of railings 13 block the connection between the construction lane and the connected lane.

[0050] After the first bracket 1 is fixed to the ground, the buffer structure can drive the railings 13 to move synchronously, so as to increase the distance between the railings 13, thereby driving the second bracket 4 away from the first bracket 1, so as to ensure that the device can cover the entire construction section.

[0051] During the movement of the railing 13, the roller 1302 rolls in cooperation with the ground, thereby reducing the difficulty of moving the railing 13; and the roller 1302 can support the railing 13 to prevent the phenomenon of tipping over.

[0052] The warning light 14 is used for warning during night construction to remind passing vehicles to take avoidance measures to avoid accidents due to poor night vision.

[0053] In another embodiment of the present invention, the buffer structure further includes multiple groups of first diagonal braces 15 and second diagonal braces 16. The first diagonal brace 15 is rotatably connected to the second diagonal brace 16, and both are rotatably installed on the railing 13; both ends of the first diagonal brace 15 and the second diagonal brace 16 are rotatably installed with a connecting shaft 17, and vertical grooves 1304 that are slidably fitted with the connecting shaft 17 are symmetrically formed on the railing 13; multiple groups of guide rails 1303 are fixedly installed on the railing 13; a sliding plate 1701 that is slidably fitted with the guide rail 1303 is fixedly installed on the connecting shaft 17, and a buffer spring 18 is fixedly installed at the bottom of the railing 13; the other end of the buffer spring 18 is fixedly connected to one of the sliding plates 1701.

[0054] Taking the embodiment combining all the features described in this application as an example, during use, in the initial state, the connecting shaft 17 is located at the end of the vertical groove 1304. Among them, the connecting shaft 17 close to the roller 1302 is located at the bottom of the vertical groove 1304, and the connecting shaft 17 close to the warning light 14 is located at the top of the vertical groove 1304. At this time, the buffer spring 18 is compressed and in a locked state.

[0055] A "scissor structure" is formed between the first diagonal brace 15 and the second diagonal brace 16. When the endpoints of the first diagonal brace 15 and the second diagonal brace 16 in the same direction approach each other, it will drive the railings 13 to move away from each other; when the endpoints move away from each other, it will drive the railings 13 to approach each other.

[0056] After the first bracket 1 is fixedly connected to the ground, the locking state of the buffer spring 18 is released; at this time, the elastic force of the buffer spring 18 will drive the bottom skateboard 1701 to move upward, thereby driving the coupling shaft 17 to slide upward in the vertical groove 1304, and at the same time driving another coupling shaft 17 to move downward in the vertical groove 1304, and driving the connected skateboard 1701 to move downward; during the movement of the skateboard 1701, it slides cooperatively with the guide rail 1303, thereby avoiding the dislocation of the skateboard 1701.

[0057] After the locking state of the buffer spring 18 is released, the railings 13 move away from each other, thereby driving the second bracket 4 away from the first bracket 1, so as to ensure that the device can cover the entire construction section.

[0058] When the impact force is too large, after the corner structure and the braking structure are actuated and the second bracket 4 still moves towards the first bracket 1, it will drive the railings 13 to approach each other, thereby driving the upper coupling shaft 17 to slide upward in the vertical groove 1304, while the bottom coupling shaft 17 moves downward in the vertical groove 1304, thereby driving the skateboard 1701 to approach the roller 1302 and compressing the buffer spring 18. Through the combined action of the elastic forces of multiple buffer springs 18, the impact force is further offset, thereby increasing the kinetic energy of the movement of the second bracket 4, so as to reduce the kinetic energy of the second bracket 4 hitting the construction workers and protect the lives of the construction workers.

[0059] In another embodiment of the present invention, a wedge block 19 is slidably fitted on the top of the railing 13; a yielding spring 20 is arranged on the railing 13, and both ends of the yielding spring 20 are in contact with the railing 13 and the wedge block 19 respectively; and the wedge block 19 cooperates with another skateboard 1701.

[0060] Taking the embodiment combined with all the features described in this application as an example, in use, in the initial state, the wedge block 19 abuts against the upper skateboard 1701, so that the skateboard 1701 cannot move downward, and the device is in a contracted state, which is convenient for the transportation of the device.

[0061] After the first bracket 1 is fixed to the ground, when an external force is applied, the contact area between the wedge block 19 and the skateboard 1701 gradually decreases, and at this time the yielding spring 20 is compressed; when the wedge block 19 is separated from the skateboard 1701, the elastic force of the yielding spring 20 will drive the wedge block 19 to reset; then under the action of the elastic force of the buffer spring 18, the skateboard 1701 will move downward, causing the railings 13 to move away from each other, thereby driving the second bracket 4 away from the first bracket 1.

[0062] After the construction is completed, the slide plate 1701 is moved upward by applying external force. During the movement, the slide plate 1701 will be squeezed and matched with the wedge surface of the wedge block 19 to drive the wedge block 19 to compress the yield spring 20. After the slide plate 1701 passes over the wedge block 19, the elastic force of the yield spring 20 will drive the wedge block 19 to reset again to limit the downward movement of the slide plate 1701, thereby locking the buffer spring 18.

[0063] In another embodiment of the present invention, a base 101 for support is fixedly installed at the bottom of the first bracket 1, and a plurality of groups of counterweights 2 are movably arranged on the base 101, and the counterweights 2 are symmetrically arranged.

[0064] Taking the embodiment combining all the features described in the present application as an example, when in use, the first bracket 1 can be placed on the ground through the base 101 , and the base 101 can increase the stability of the first bracket 1 .

[0065] Then, the counterweight 2 is installed on the base 101, and the counterweight 2 is fixedly connected together by bolts. By adding the counterweight 2 to fix the first bracket 1, damage to the road surface can be reduced, construction efficiency can be improved, and traffic pressure caused by long-term lane closure can be avoided.

[0066] In another embodiment of the present invention, a pull ring 1901 is rotatably mounted on the wedge block 19 .

[0067] Taking the embodiment combining all the features described in the present application as an example, when in use, the pull ring 1901 can reduce the difficulty of moving the wedge block 19, thereby improving the construction efficiency.

[0068] In another embodiment of the present invention, a plurality of grooves 1201 are formed on the surface of the brake block 12 that contacts the ground.

[0069] Taking the embodiment combining all the features described in the present application as an example, when in use, the multiple groups of grooves 1201 can increase the friction coefficient of the brake block 12, thereby increasing the movement resistance of the support seat 6.

[0070] In another embodiment of the present invention, a universal wheel 601 is rotatably mounted on the bottom of the support seat 6 .

[0071] Taking the embodiment combining all the features described in the present application as an example, when in use, the universal wheel 601 can reduce the difficulty of the second bracket 4 being away from the first bracket 1, thereby improving the construction efficiency.

[0072] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0073] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A road construction emergency protection device, comprising a first bracket (1); a symmetrically arranged opening and closing enclosure (3) is rotatably mounted on the first bracket (1); It is characterized in that A second bracket (4) is arranged on the vehicle-facing surface of the first bracket (1); the first bracket (1) and the second bracket (4) are connected via a buffer structure; the buffer structure is capable of driving the second bracket (4) away from the first bracket (1); A rotating enclosure (5) is slidably mounted on the second bracket (4); a corner structure is provided on the rotating enclosure (5); A support seat (6) is fixedly mounted on the second bracket (4); a brake block (12) is slidably engaged on the support seat (6); and a brake structure is provided on the brake block (12); When the rotating enclosure (5) is hit, the impact force generated by the impact will drive the corner structure to move, thereby driving the bottom of the rotating enclosure (5) to move toward the first bracket (1), so as to change the angle between the rotating enclosure (5) and the ground; during this process, the brake structure is activated to increase the friction between the brake block (12) and the ground.

2. The road construction operation emergency protection device according to claim 1 is characterized in that: The corner structure comprises an engaging rod (7) fixedly mounted on the support seat (6); a hinge block (701) is slidably engaged in the engaging rod (7); a connecting block (9) connected to the buffer structure is fixedly mounted on the end of the engaging rod (7) away from the second bracket (4); a return spring (8) is arranged in the engaging rod (7), and the connecting sections of the return spring (8) respectively contact the connecting block (9) and the hinge block (701); an engaging block (501) is fixedly mounted on the upper part of the rotating enclosure (5); a sliding groove (401) slidably engaged with the engaging block (501) is provided on the second bracket (4); and the bottom of the rotating enclosure (5) is rotatably mounted on the hinge block (701).

3. The road construction operation emergency protection device according to claim 2 is characterized in that: The brake structure comprises a connecting plate (10) slidably arranged in the support seat (6), and a telescopic column (1002) is fixedly mounted on the connecting plate (10); a telescopic sleeve (1202) slidably engaged with the telescopic column (1002) is fixedly mounted on the brake block (12); a compression spring (11) is arranged in the telescopic sleeve (1202); two ends of the compression spring (11) respectively contact the telescopic column (1002) and the brake block (12); a matching block (1001) matched with the hinge block (701) is fixedly mounted on the connecting plate (10), and the matching block (1001) is slidably mounted on the support seat (6) and passes through the engaging rod (7).

4. The road construction operation emergency protection device according to claim 2, characterized in that: The buffer structure comprises a plurality of groups of railings (13), wherein the railings (13) close to the second bracket (4) are fixedly connected to the connecting block (9); and the railings (13) close to the first bracket (1) are fixedly connected to the first bracket (1); a roller (1302) is rotatably mounted on the bottom of the railings (13), a mounting seat (1301) is fixedly mounted on the top of the railings (13), and a warning light (14) is fixedly mounted on the mounting seat (1301).

5. The road construction operation emergency protection device according to claim 4, characterized in that: The buffer structure further comprises a plurality of groups of first diagonal braces (15) and second diagonal braces (16), wherein the first diagonal braces (15) and the second diagonal braces (16) are rotatably connected and are both rotatably mounted on the railing (13); a connecting shaft (17) is rotatably mounted on both ends of the first diagonal braces (15) and the second diagonal braces (16); vertical grooves (1304) slidably engaged with the connecting shaft (17) are symmetrically provided on the railing (13); a plurality of groups of guide rails (1303) are fixedly mounted on the railing (13); a slide plate (1701) slidably engaged with the guide rail (1303) is fixedly mounted on the connecting shaft (17); a buffer spring (18) is fixedly mounted on the bottom of the railing (13); the other end of the buffer spring (18) is fixedly connected to one of the slide plates (1701).

6. The road construction operation emergency protection device according to claim 5, characterized in that: A wedge (19) is slidably engaged with the top of the handrail (13); a yield spring (20) is provided on the handrail (13), and two ends of the yield spring (20) respectively contact the handrail (13) and the wedge (19); and the wedge (19) cooperates with another slide plate (1701).

7. The road construction operation emergency protection device according to claim 1, characterized in that: A base (101) for support is fixedly mounted on the bottom of the first bracket (1), and a plurality of groups of counterweight blocks (2) are movably arranged on the base (101), and the counterweight blocks (2) are symmetrically arranged.

8. The road construction operation emergency protection device according to claim 6, characterized in that: A pull ring (1901) is rotatably mounted on the wedge block (19).

9. The road construction operation emergency protection device according to claim 3, characterized in that: A plurality of groups of grooves (1201) are provided on a surface of the brake block (12) that contacts the ground.

10. The road construction operation emergency protection device according to claim 1, characterized in that: A universal wheel (601) is rotatably mounted on the bottom of the support seat (6).

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