Ventilation type snow baffle based on wind pressure balance

Abstract

The utility model relates to a ventilation type snow baffle based on wind pressure balance. At present, in an alpine region, a local wind pressure amplification effect, uneven accumulated snow distribution and insufficient adaptability to a dynamic environment can cause wind pressure unbalance of a snow baffle, and the snow baffle cannot adjust the wind pressure balance. The snow baffle is formed by splicing a plurality of steel corrugated plates; the steel corrugated plate is obliquely arranged, the bottom of the steel corrugated plate is arranged underground, a plurality of vertically-arranged steel pipes are hinged to the side, close to the ground, of the steel corrugated plate at intervals, and the bottoms of the steel pipes extend into a concrete foundation below the ground. The area of the steel corrugated plate above the top of the steel pipe is smaller than that of the steel corrugated plate below the top of the steel pipe; a plurality of upper ventilation holes are formed in the steel corrugated plate located above the top of the steel pipe, and a plurality of lower ventilation holes are formed in the steel corrugated plate located below the top of the steel pipe. Wind pressure in front of and behind the steel corrugated plate can be counteracted according to the lever principle, wind pressure balance is adjusted, and therefore the wind resistance strength of the snow blocking wall is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to snow blocking technology field, concretely relates to a kind of ventilation type snow board based on wind pressure balance. BACKGROUND

[0002] High-cold region due to its special climatic conditions, winter snow frequently and temperature is extremely low, therefore, higher requirement is proposed to road safety and afforestation protection, snow board plays an important role in this environment, snow board can prevent snow from sliding onto road, can also effectively block cold wind, provide a relatively warm environment for the afforestation plant of road two sides, help the growth and recovery of plant.

[0003] However, the current snow board has the following deficiencies in adjusting wind pressure balance:

[0004] Local wind pressure amplification effect: although snow board can guide snow to slide, its edge and corner area can cause local wind pressure to increase by 20%-30% due to airflow disturbance, and this pressure concentration can cause additional load on the supporting structure, which requires strengthening fixation or adjusting the structure design to cope with, increasing engineering complexity.

[0005] Uneven snow distribution: snow board can change the natural accumulation pattern of snow, such as forming a snow area with a thickness of 2-3 times that of flat area near the eaves and obstacles. If the angle or spacing of snow board is not reasonably designed, it will lead to unbalanced wind pressure distribution, and even cause local structure overload risk.

[0006] Insufficient adaptability to dynamic environment: under extreme weather (such as strong wind, snowstorm), snow board may vibrate due to snow overload or wind resonance, causing structure fatigue or loose connecting parts.

[0007] Therefore, there is an urgent need for a ventilation type snow board based on wind pressure balance. SUMMARY

[0008] The utility model aims to provide a kind of ventilation type snow board based on wind pressure balance, to at least solve the problem that current snow board cannot adjust wind pressure balance.

[0009] In order to achieve the above purpose, the utility model employs the following technical solutions:

[0010] A ventilation type snow board based on wind pressure balance, the snow board is spliced by several steel corrugated plates;

[0011] The steel corrugated plate is inclined to set, and the bottom of the steel corrugated plate is set below the ground, a plurality of vertical steel pipes are hingedly connected to one side of the steel corrugated plate close to the ground, and the bottom of the steel pipe extends into the concrete foundation below the ground;

[0012] The steel corrugated plate area above the top of the steel pipe is less than the steel corrugated plate area below the top of the steel pipe.

[0013] A plurality of upper air holes are formed in the steel corrugated plate above the top of the steel pipe, and a plurality of lower air holes are formed in the steel corrugated plate below the top of the steel pipe.

[0014] Further, the steel pipes are arranged in alignment with the top of the steel pipe, and the steel pipes are arranged at the joint of adjacent steel corrugated plates, respectively.

[0015] Further, a plurality of reinforcing support rods are arranged on the steel pipe above the ground, one end of the reinforcing support rod is arranged on the side wall of the steel pipe, and the other end is arranged on the top of the ground.

[0016] Further, a plurality of ground anchors are arranged between the concrete foundation and the ground, one end of the ground anchor is arranged on the bottom of the ground, and the other end is arranged on the concrete foundation.

[0017] Further, one end of the reinforcing support rod arranged on the ground is aligned with one end of the ground anchor arranged on the ground.

[0018] Further, the diameter of the upper air hole is greater than the diameter of the lower air hole.

[0019] Further, the lower air hole is formed from the top of the steel pipe to a vertical distance of 35-65 cm from the ground.

[0020] Further, the side edge of the steel corrugated plate is provided with a reinforcing edge plate, and the top of the steel corrugated plate is provided with a top plate.

[0021] Further, the corrugation of the steel corrugated plate is a transverse corrugation parallel to the ground.

[0022] Further, the wind direction blows from one side of the steel pipe provided with the steel corrugated plate to the side of the steel corrugated plate away from the steel pipe.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] The utility model provides a kind of based on wind pressure balance's air-permeable snow fence, steel corrugated plate is inclined to set, and upper air-permeable hole and lower air-permeable hole are set on steel corrugated plate, steel pipe is hinged between upper air-permeable hole and lower air-permeable hole, by the internal force that steel corrugated plate can resist tension and compression, so that the whole snow fence forms lever principle, wind direction is from the side of steel corrugated plate where steel pipe is set to the side of steel corrugated plate far from steel pipe, steel corrugated plate can rotate with steel pipe top as fulcrum, air-permeable snow can be passed through upper air-permeable hole and lower air-permeable hole, and wind pressure before and after steel corrugated plate can be offset by lever principle, adjust wind pressure balance, avoid snow wall structure instability, to improve the wind resistance of snow wall structure Intensity, and the utilization rate of the tensile and compressive performance of steel corrugated plate itself can be improved using lever principle, further reduce the material amount of steel corrugated plate, reduce the thickness of steel corrugated plate, to reduce cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will be briefly introduced to the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, other drawings of embodiments can also be obtained according to these drawings.

[0026] Figure 1 It is the elevation view of the utility model;

[0027] Figure 2 It is the side view of the utility model;

[0028] Figure 3 It is the plan view of the utility model;

[0029] Figure 4 It is the working principle schematic view of the utility model;

[0030] In the figure, it is indicated as:

[0031] 1-steel corrugated plate, 2-steel pipe, 3-concrete foundation, 4-upper air-permeable hole, 5-lower air-permeable hole, 6-reinforcing support rod, 7-ground anchor, 8-reinforcing edge plate, 9-top plate. DETAILED DESCRIPTION

[0032] In order to facilitate understanding of the utility model, the following will be more comprehensive to the utility model with reference to relevant drawings.The preferred embodiments of the utility model are given in the drawings.However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein.Conversely, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0033] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0034] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, set, or it can be detachably connected, set, or integrally connected, set. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] Will Figure 1 The direction perpendicular to the ground is defined as the vertical direction.

[0036] Embodiment:

[0037] The embodiment provides a wind pressure balance based on the wind pressure balance. The snow board is spliced by a plurality of steel corrugated plates 1, the steel corrugated plate 1 is welded with a reinforcing edge plate 8 around, the adjacent steel corrugated plates 1 are spliced by welding the adjacent reinforcing edge plates 8, and the steel corrugated plate 1 is welded with a top plate 9 on the top.

[0038] Specifically, the steel corrugated plate 1 is arranged obliquely, and the bottom of the steel corrugated plate 1 is buried below the ground, the corrugation of the steel corrugated plate 1 is a horizontal corrugation parallel to the ground, in the embodiment, the included angle between the steel corrugated plate 1 and the ground is 30°, and the oblique arrangement can greatly reduce the influence of the snow pressure of deposited snow on the steel corrugated plate 1, so as to reduce the thickness of the steel corrugated plate 1, thereby reducing the cost.

[0039] In the embodiment, the vertical height of the top of the steel corrugated plate 1 from the ground is 10 m, the thickness of the reinforcing edge plate 8 is determined according to the height of the snow board, and in the embodiment, the thickness of the reinforcing edge plate 8 and the top plate 9 is 4 mm, and the width is 200 mm.

[0040] Specifically, a plurality of steel pipes 2 arranged vertically are hingedly connected to one side of the steel corrugated plate 1 close to the ground, and the bottom of the steel pipe 2 extends into the concrete foundation 3 below the ground for fixation, the top of the steel pipe 2 is arranged in alignment, and the steel pipe 2 is arranged at the splicing position of the adjacent steel corrugated plates 1.

[0041] In this embodiment, the diameter of the steel pipe 2 is 60 cm, and the thickness of the side wall is 4 mm.

[0042] Specifically, the area of the steel corrugated plate 1 located above the top of the steel pipe 2 is smaller than the area of the steel corrugated plate 1 located below the top of the steel pipe 2, and the vertical distance from the top of the steel corrugated plate 1 to the top of the steel pipe 2 is one-third of the vertical distance from the top of the steel corrugated plate 1 to the ground. The steel corrugated plate 1 is hinged so that it can rotate around the steel pipe 2 as a fulcrum. The internal force of the steel corrugated plate 1 can resist both tension and compression, so that the entire snow fence forms a lever principle.

[0043] In this embodiment, a plurality of upper air holes 4 are formed in the steel corrugated plate 1 located above the top of the steel pipe 2. The upper air holes 4 are arranged in multiple rows and multiple columns, and each row and each column is aligned. A plurality of lower air holes 5 are formed in the steel corrugated plate 1 located below the top of the steel pipe 2. The lower air holes 5 are arranged in multiple rows and multiple columns, and each row and each column is aligned. The number of rows and columns of the lower air holes 5 is greater than the number of rows and columns of the upper air holes 4.

[0044] The upper air holes 4 and the lower air holes 5 are both formed at the peaks and valleys of the steel corrugated plate 1, and the diameter of the upper air holes 4 is greater than the diameter of the lower air holes 5. The upper air holes 4 and the lower air holes 5 can allow air to pass through and block snow, and can also offset the wind pressure in front of and behind the steel corrugated plate 1 through the lever principle, thereby adjusting the wind pressure balance and preventing the snow fence structure from losing stability, thereby improving the wind resistance of the snow fence structure.

[0045] The lower air holes 5 are formed from the top of the steel pipe 2 to a vertical distance of 35-65 cm from the ground. In this embodiment, the vertical distance is 50 cm.

[0046] In other embodiments, the portion of the steel corrugated plate 1 from the bottom of the lower air holes 5 to the bottom of the steel corrugated plate 1 can also be a hollow structure.

[0047] According to fluid mechanics, the inclined arrangement of the steel corrugated plate 1 can also function as a wind deflector. After the wind passes through the upper air holes 4 and the lower air holes 5 of the steel corrugated plate 1, the wind direction will change to be perpendicular to the inclined surface of the steel corrugated plate 1, as shown in FIG. C, thereby reducing the wind force on vehicles on the road and ensuring driving safety. Figure 4

[0048] In this embodiment, two reinforcing support rods 6 are fixed to the steel pipe 2 above the ground. One end of the reinforcing support rod 6 is welded to the side wall of the steel pipe 2, and the other end is buried in the top of the ground. The reinforcing support rod 6 strengthens and fixes the steel pipe 2. The angle between the reinforcing support rod 6 and the steel pipe 2 is 45°, and the cross section of the two reinforcing support rods 6 along the transverse direction of the road is an isosceles right triangle.

[0049] ​Two ground anchors 7 are arranged between the concrete foundation 3 and the ground, one end of the ground anchors 7 is embedded in the bottom of the ground, the other end is fixed in the concrete foundation 3, and the reinforced support rod 6 is arranged in alignment with the ground end of the ground anchors 7.

[0050] In the embodiment, the steel corrugated plate 1, the reinforced edge plate 8, the top plate 9 and the steel pipe 2 are all subjected to hot galvanizing anticorrosion treatment.

[0051] The wind direction is from the side of the steel corrugated plate 1 where the steel pipe 2 is arranged to the side of the steel corrugated plate 1 far away from the steel pipe 2. Figure 4 The wind pressure generates a thrust force perpendicular to the inclined surface of the steel corrugated plate 1, as shown in FIG. 4B. Figure 4 The up and down wind permeability of the steel corrugated plate 1 is adjusted through the upper and lower wind holes 4 and 5 to achieve force balance by using the lever principle, so as to avoid instability of the snow retaining wall structure, thereby improving the wind resistance of the snow retaining wall structure. Figure 4 The counter-thrust force generated by the lever is shown in FIG. 4D, and the use of the lever principle can improve the utilization rate of the tensile and compressive performance of the steel corrugated plate 1 itself, further reduce the material usage of the steel corrugated plate 1, and reduce the thickness of the steel corrugated plate 1, thereby reducing the cost.

[0052] The above application of specific examples to the utility model is described, which is only used to help understand the utility model, and does not limit the utility model. For the skilled in the art to which the utility model belongs, according to the idea of the utility model, a number of simple deductions, deformations or substitutions can be made.

Claims

1. A wind pressure balance based see-through snow fence, characterized by: The snow blocking plate is spliced by several steel corrugated plates (1); The steel corrugated plate (1) is inclinedly arranged, the bottom of the steel corrugated plate (1) is arranged below the ground, a plurality of vertical steel pipes (2) are hingedly arranged on one side of the steel corrugated plate (1) close to the ground, and the bottom of the steel pipe (2) extends into the concrete foundation (3) below the ground; The area of the steel corrugated plate (1) above the top of the steel pipe (2) is smaller than the area of the steel corrugated plate (1) below the top of the steel pipe (2); A plurality of upper air holes (4) are formed in the steel corrugated plate (1) above the top of the steel pipe (2), and a plurality of lower air holes (5) are formed in the steel corrugated plate (1) below the top of the steel pipe (2).

2. The air-permeable snow blocking plate based on wind pressure balance according to claim 1, wherein: The top of the steel pipe (2) is arranged in alignment, and the steel pipe (2) is arranged at the splicing position of adjacent steel corrugated plates (1).

3. The air-permeable snow blocking plate based on wind pressure balance according to claim 1, wherein: A plurality of reinforcing support rods (6) are arranged on the steel pipe (2) above the ground, one end of the reinforcing support rod (6) is arranged on the side wall of the steel pipe (2), and the other end is arranged on the top of the ground.

4. The air-permeable snow blocking plate based on wind pressure balance according to claim 3, wherein: A plurality of ground anchors (7) are arranged between the concrete foundation (3) and the ground, one end of the ground anchor (7) is arranged on the bottom of the ground, and the other end is arranged on the concrete foundation (3).

5. The air-permeable snow blocking plate based on wind pressure balance according to claim 4, wherein: One end of the reinforcing support rod (6) is aligned with one end of the ground anchor (7) arranged on the ground.

6. The air-permeable snow blocking plate based on wind pressure balance according to claim 1, wherein: The diameter of the upper air hole (4) is larger than the diameter of the lower air hole (5).

7. The air-permeable snow blocking plate based on wind pressure balance according to claim 1, wherein: The lower air hole (5) is formed from the top of the steel pipe (2) to a vertical distance of 35-65 cm from the ground.

8. The air-permeable snow blocking plate based on wind pressure balance according to claim 1, wherein: A reinforcing edge plate (8) is arranged on the side edge of the steel corrugated plate (1), and a top plate (9) is arranged on the top of the steel corrugated plate (1).

9. The air-permeable snow blocking plate based on wind pressure balance according to claim 1, wherein: The corrugation of the steel corrugated plate (1) is a transverse corrugation parallel to the ground.

10. The air-permeable snow blocking plate based on wind pressure balance according to claim 1, wherein: The wind direction blows from one side of the steel corrugated plate (1) where the steel pipe (2) is arranged to the other side of the steel corrugated plate (1) away from the steel pipe (2).

Images