Wind-resistant device for pavement construction

Abstract

The utility model discloses a wind-resistant device for road surface construction, which comprises a support frame, a wind shield assembled on the support frame and a counter weight for weight increment, the wind shield comprises a rectangular part and a triangular part arranged on one side of the rectangular part, the triangular part corresponds to the windward side of the wind shield, and when the support frame is limited on a road surface, the triangular part is arranged on the windward side of the wind shield. And the triangular part guides and shunts the wind blown to the wind shield to reduce the wind speed behind the wind shield, so that the wind speed of a pavement construction area can be effectively reduced, a relatively stable low-wind environment is created in the construction area, and smooth construction is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, and in particular to a wind-resistant device for pavement construction. Background Technology

[0002] In areas frequently affected by strong winds, airport pavement construction is hampered by the fact that strong winds accelerate the evaporation of moisture from the concrete surface, causing premature water loss and leading to plastic shrinkage cracks. This affects the appearance, durability, and load-bearing capacity. Furthermore, wind disturbances cause uneven concrete pouring and vibration, resulting in poor compaction and threatening the pavement's strength and stability. In addition, the safety of equipment and personnel is difficult to guarantee in strong wind environments, often requiring construction to be suspended. As a result, the construction schedule is inevitably delayed.

[0003] In addition, strong winds also cause economic losses, with increased costs for crack repair and rework, and work stoppages and additional maintenance also pushing up construction costs and affecting economic benefits. At the same time, strong winds also blow away dust particles that pollute the surrounding environment, and the waste generated from early-age concrete damage exacerbates the environmental burden. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a wind-resistant device for pavement construction, which can effectively reduce wind speed in the pavement construction area, thereby creating a relatively stable low-wind environment and ensuring the smooth progress of construction.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] This utility model provides a wind-resistant device for pavement construction, including a support frame, a windbreak cover assembled on the support frame, and a counterweight for weight increase; the windbreak cover includes a rectangular portion and a triangular portion disposed on one side of the rectangular portion, the triangular portion corresponding to the windward side of the windbreak cover; when the support frame is confined to the pavement, the triangular portion guides and diverts the wind blowing towards the windbreak cover to reduce the wind speed behind the windbreak cover.

[0007] Furthermore, the cross-section of the triangular portion is an isosceles triangle.

[0008] Furthermore, the external dimensions of the windshield meet the following conditions: Where A is the waist length of the triangular part, B is the side length of the rectangular part perpendicular to the windward side, and C is the side length of the rectangular part parallel to the windward side.

[0009] Furthermore, the windshield includes a rigid frame and a panel disposed on the outer surface of the frame.

[0010] Furthermore, the windshield is a hollow structure; the rectangular portion has an opening on the side opposite to the triangular portion for the counterweight to enter and exit.

[0011] Furthermore, the bottom of the counterweight is equipped with a first traveling wheel, and the first traveling wheel is equipped with a brake; the counterweight is located on the side of the support frame; or the counterweight is located on the top of the support frame; or the counterweight is connected to the support frame by a tension rope; or the counterweight is connected to the windshield by a tension rope.

[0012] Furthermore, the counterweight is a counterweight water tank.

[0013] Furthermore, the support frame includes a horizontal frame and vertical supports fixed at opposite ends of the horizontal frame. The bottom of the vertical supports is equipped with a second traveling wheel, and the second traveling wheel is equipped with a brake. The horizontal frame is suspended in the air.

[0014] The technical solution provided by this utility model has the following beneficial effects:

[0015] This invention features wind reduction efficiency. A triangular section is provided on the windward side of the wind deflector. Strong airflow, guided by the wind deflector, flows to the rear of the deflector, where its energy is effectively dispersed or diverted, and its velocity is correspondingly reduced. This significantly reduces the wind force behind the wind deflector, thereby lowering construction wind speed and mitigating the adverse effects of wind on concrete construction. It also creates a relatively stable low-wind environment for pavement construction areas prone to strong winds, such as coastal airports, ensuring smooth construction progress and effectively preventing work stoppages caused by 5-8 level gales. This reduces lost work costs, ensures construction continuity, improves project quality, and further reduces economic losses due to construction interruptions. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the wind-resistant device used for pavement construction in the embodiment.

[0017] Figure 2 The image shown is a first-view schematic diagram of the windshield in the embodiment;

[0018] Figure 3 The image shown is a second-view schematic diagram of the windshield in the embodiment;

[0019] Figure 4 The diagram shown is a schematic of the support frame in the embodiment. Detailed Implementation

[0020] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0022] Reference Figures 1 to 4 As shown, this embodiment provides a wind-resistant device (hereinafter referred to as the wind-resistant device) for pavement construction, which is used for wind resistance and diversion during the construction of concrete pavement at coastal airports under strong wind conditions.

[0023] like Figure 1 As shown, the wind-resistant device in this embodiment includes a support frame 1, a windshield 2 mounted on the support frame 1, and a counterweight 3 for adding weight.

[0024] like Figure 1 and Figure 3 As shown, the windshield 2 includes a rectangular portion 21 and a triangular portion 22 disposed on the front side of the rectangular portion 21, the triangular portion 22 corresponding to the windward side of the windshield 2.

[0025] When the support frame 1 is confined to the pavement, the triangular part 22 guides and diverts the wind or airflow 6 blowing toward the wind deflector 2, so as to reduce the wind speed in the pavement construction area 5 behind the wind deflector 2.

[0026] In this embodiment, as Figure 4 As shown, the support frame 1 includes a horizontal frame 11 and vertical supports 12 fixed to the left and right opposite ends of the horizontal frame 11. The bottom of each of the two vertical supports 12 is equipped with a second traveling wheel 121. The two vertical supports 12 support the horizontal frame 11, allowing the horizontal frame 11 to be suspended in the air, i.e., there is a certain height gap between the horizontal frame 11 and the pavement. This height gap is used for the construction of the airport pavement below. Of course, reinforcing ribs are also provided between the horizontal frame 11 and the vertical supports 12 to improve the connection strength between them.

[0027] After the road construction in the previous construction area 5 is completed, the wind-resistant device of this embodiment moves backward along the road track and carries out the next construction process through the second traveling wheel 121. The two vertical supports 12 travel on opposite sides of the road, while the horizontal frame 11 is located above the road, so there is no interference.

[0028] like Figure 1As shown, the bottom of the counterweight 3 is equipped with first traveling wheels 31, and the counterweight 3 is located on the left and right sides of the support frame 1. The counterweight 3 is connected to the windshield 2 by a tension rope 4. Of course, in other embodiments, the counterweight 3 can also be connected to the support frame 1 by a tension rope 4.

[0029] More specifically, both the first traveling wheel 31 and the second traveling wheel 121 are equipped with brakes to ensure that the support frame 1 and the counterweight 3 remain stationary after the brakes are activated, thus ensuring the stability of the entire wind-resistant device.

[0030] The wind-resistant device in this embodiment has wind reduction efficiency. A triangular portion 22 is provided on the windward side of the wind deflector 2. After the strong wind airflow 6 is guided by the triangular portion 22 of the wind deflector 2, it flows to the rear of the rectangular portion 21 of the wind deflector 2. At this time, its energy has been effectively dispersed or diverted, and its flow velocity is also reduced accordingly. Finally, the wind force behind the wind deflector 2 is significantly reduced. This can reduce the construction wind speed and reduce the adverse effects of wind on concrete construction. It also creates a relatively stable low-wind environment for pavement construction areas 5 that are affected by strong winds, such as coastal airports, to ensure the smooth progress of construction. It also effectively avoids work stoppages caused by 5-8 level gales, thereby reducing lost work costs, ensuring the continuity of construction, improving project quality, and further reducing economic losses caused by construction interruptions.

[0031] Furthermore, the wind-resistant device in this embodiment also takes into account economic efficiency. Its simple structure reduces manufacturing costs and extends service life. It is also easy to install or disassemble and can improve work efficiency, thus achieving a cost-effective construction method and adapting to various construction scenarios.

[0032] In another preferred embodiment, such as Figure 3 As shown, the cross-section of the triangular portion 22 is an isosceles triangle, the base of the triangular portion 22 coincides with the side length of the rectangular portion 21, and the external dimensions of the windshield 2 satisfy the following conditions:

[0033] Conditional expression (1):

[0034] Conditional expression (2):

[0035] Where A is the length of the waist side A' of the triangular part 22, B is the length of the side B' of the rectangular part 21 perpendicular to the windward side, and C is the length of the side C' of the rectangular part 21 parallel to the windward side.

[0036] In conditional formula (1), when the windshield 2 is facing the wind, it can guide and divert the airflow 6 in a reasonable way. That is, when the strong wind impacts the front end or the windward end of the windshield 2, it causes the airflow 6 to flow smoothly along the side of the windshield 2, avoiding the turbulent accumulation of the airflow 6, thereby reducing the direct impact on the road construction area 5 behind the windshield 2, and thus reducing the wind force and wind speed of the road construction area 5 behind the windshield 2.

[0037] In condition (2), the side length C' and waist side A' work together to form a suitable tilt angle. When strong wind blows from the front, condition (2) enables the wind deflector 2 to precisely cut and guide the airflow 6, changing the original direction and velocity distribution of the airflow 6. In this way, after the airflow 6 is guided by the front of the wind deflector 2, the energy of the airflow 6 when it reaches the pavement construction area 5 behind it has been effectively dispersed, and its velocity has also been reduced. Ultimately, the wind force in the pavement construction area 5 behind the wind deflector 2 is significantly reduced, and a relatively stable low wind environment is created for the pavement construction area 5 of the coastal airport pavement, ensuring the smooth progress of the construction.

[0038] In addition, the height H of the windshield 2 satisfies condition (3): This ensures that the construction area 5 behind the windshield 2 can create a relatively stable low-wind environment, while also preventing the windshield 2 from being too large.

[0039] Furthermore, finite element analysis shows that the distance between the middle section of the flow field of airflow 6 and the ground is 1.175m. Through the wind deflector 2, a low wind area with a significant decrease in wind speed can be formed behind the wind deflector 2.

[0040] More specifically, such as Figure 2 As shown, the windshield 2 includes a rigid frame 23 and a panel 24 disposed on the outer surface of the frame 23. Specifically, the frame 23 is a steel frame. In this case, the windshield 2 has a hollow structure, which reduces the overall weight while ensuring the strength of the windshield 2. The rectangular portion 21 has an opening 211 for the counterweight 3 to enter and exit on the rear side away from the triangular portion 22. Of course, in other embodiments, the frame 23 can also be made of aluminum alloy or other iron alloys and other metal materials.

[0041] In this specific embodiment, multiple sets of counterweights 3 are respectively arranged on the left and right sides of the support frame 1. The counterweights 3, the lighter support frame 1 and the windshield 2 are connected as a whole by tension ropes 4. In this way, it is not necessary to place the heavier counterweights 3 on the upper surface of the support frame 1 to prevent the support frame 1 with a large span from deforming due to excessive load.

[0042] The specific counterweight 3 is a counterweight water tank, which can be drained during transportation to reduce weight and facilitate transportation. At the same time, the bottom of the counterweight 3 is equipped with first traveling wheels 31, which also facilitates its movement.

[0043] Of course, in other embodiments, when the span of the support frame 1 is small, the counterweight 3 can also be placed on the upper surface of the support frame 1.

[0044] Counterweight 3 can also be replaced by lead blocks or other heavy objects.

[0045] In addition, the upper part of the windshield 2 can also be equipped with a lifting ring, which can be used in conjunction with an external crane to facilitate the hoisting of the counterweight 3 to the upper surface of the support frame 1 or to place it in the inner cavity of the windshield 2.

[0046] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A wind-resistant device for pavement construction, characterized in that: It includes a support frame, a windshield mounted on the support frame, and counterweights for adding weight; The windshield includes a rectangular portion and a triangular portion disposed on one side of the rectangular portion, the triangular portion corresponding to the windward side of the windshield; When the support frame is confined to the pavement, the triangular portion guides and diverts the wind blowing toward the wind deflector to reduce the wind speed behind the wind deflector.

2. The wind-resistant device for pavement construction according to claim 1, characterized in that: The cross-section of the triangular portion is an isosceles triangle.

3. The wind-resistant device for pavement construction according to claim 2, characterized in that: The external dimensions of the windshield meet the following conditions: Where A is the waist length of the triangular part, B is the side length of the rectangular part perpendicular to the windward side, and C is the side length of the rectangular part parallel to the windward side.

4. The wind-resistant device for pavement construction according to any one of claims 1-3, characterized in that: The windshield includes a rigid frame and a panel disposed on the outer surface of the frame.

5. The wind-resistant device for pavement construction according to claim 4, characterized in that: The windshield is a hollow structure; the rectangular part has an opening on the side opposite to the triangular part for the counterweight to enter and exit.

6. The wind-resistant device for pavement construction according to any one of claims 1-3, characterized in that: The counterweight is equipped with a first traveling wheel at its bottom, and the first traveling wheel is equipped with a brake; the counterweight is located on the side of the support frame; or the counterweight is located on the top of the support frame; or the counterweight is connected to the support frame by a tension rope; or the counterweight is connected to the windshield by a tension rope.

7. The wind-resistant device for pavement construction according to any one of claims 1-3, characterized in that: The counterweight is a counterweight water tank.

8. The wind-resistant device for pavement construction according to any one of claims 1-3, characterized in that: The support frame includes a horizontal frame and vertical supports fixed at opposite ends of the horizontal frame. The bottom of the vertical supports is equipped with a second traveling wheel, and the second traveling wheel is equipped with a brake. The horizontal frame is suspended in the air.

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