Angle-adjustable snow-blowing anti-snow fence and angle-adjustable snow-blowing anti-snow method

Abstract

The invention discloses an angle-adjustable wind-blown snow protection fence and method, and belongs to the technical field of wind-blown snow disaster prevention and control. The snow protection fence comprises a fence structure and an adjusting device; the fence device comprises a fixing frame and an adjusting frame, a plurality of grid plates are arranged between the fixing frame and the adjusting frame and are arranged at intervals, and the two sides of the grid plates are rotationally connected with the fixing frame and the adjusting frame respectively; the adjusting device comprises a parallel connecting rod structure, a base and a driving device; the base is connected with the free end of the parallel connecting rod structure, the adjusting frame is connected with the base, and the driving device is used for driving the free end of the parallel connecting rod structure to swing. Free adjustment of the angle and the ventilation rate of the snow protection fence is achieved, and the prevention and control effect of snow blown by wind is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind-blown snow disaster prevention and control, and in particular to an angle-adjustable snow-proof fence and method. Background Art

[0002] Blowing snow is widely distributed in cold and snowy areas in my country. It will not only cause visibility obstruction but also cause serious snow disasters, affecting the normal operation of traffic routes. In nature, blowing snow is a very complex gas-solid atypical two-phase flow, and its mechanism is very complex, affected by many factors such as the local environment. Among the existing snow prevention facilities, snow fences are the most commonly used. Snow fences are referred to as snow fences. Snow fences are set to make the wind and snow flow form vortices on both sides of the snow fences to slow down, and the wind speed on both sides of the snow fences is reduced to below the starting wind speed, so that snow particles accumulate around the snow fences to achieve the prevention and control effect. Snow fences can be divided into fixed and mobile types according to the fixed form; they can be divided into horizontal plate type, vertical bar type, adjustable air permeability type and fine hole type according to the structure; they can be divided into single-row snow fences and multi-row snow fences according to the setting method. Snow fences should be arranged on the upwind side of the snow-damaged road section and be vertical or nearly vertical to the dominant wind direction in winter. When the angle between the direction of the snow-damaged road section and the wind direction is less than 40°, goose-shaped, herringbone-shaped or broken-line snow fences can be used. Among them, fences with a porosity of 50% to 70% are suitable for sections with strong wind-blown snow and larger snow storage areas; fences with a porosity of 20% to 30% are suitable for sections with weak wind-blown snow and smaller snow storage areas. The snow-blocking capacity of a single-row snow fence is mainly related to the fence height H and the air permeability d. However, the existing snow fences are not very good in terms of practicality and economy. At present, the commonly used engineering snow-blocking measures in the prevention and control of wind-blown snow and snow damage on highways are to build and bury snow fences, but the spacing between the snow-proof slats on the snow-proof fences cannot be adjusted at any time according to the degree of snow damage. The slat gap, slat height and angle of the slats cannot be adjusted at any time according to the degree of snow damage, so the purpose of intercepting wind-blown snow of different intensities cannot be achieved. In addition, the snow-proof fence is not easy to disassemble when not in use, and the maintenance is more troublesome; fixed snow fences are suitable for sections with weak wind and snow flows, long duration, little wind direction change, and small snow movement. It is difficult for ordinary snow fences in the prior art to achieve the pore adjustment function, and the current electrically controlled pore adjustment snow fences are too expensive and difficult to promote and use on a large scale; the reinforced concrete structure of the snow fence is heavy and bulky, difficult to transport and assemble, and it is assembled once and not dismantled, which requires permanent occupation of a large amount of land, directly affecting the income of surrounding farmers and herdsmen, and the compensation amount is high, which increases the cost of preventing and controlling wind and snow disasters and has a great impact on the living habits of animals around the roadbed.

[0003] Therefore, the present invention mainly provides a wind-blown snow fence and method with adjustable angle and porosity. The invention is not only a movable snow fence, but also has free adjustment in angle and air permeability, which saves materials and reduces construction costs, as well as labor costs. Summary of the invention

[0004] In order to solve the problem of how to change the angle and air permeability of the snow fence and move the snow fence while preventing and controlling wind and snow, the present invention provides a wind and snow snow fence with adjustable angle and porosity and a method, thereby achieving free adjustment of the angle and air permeability of the snow fence and improving the prevention and control effect and economy of wind and snow.

[0005] The present invention is achieved through the following technical solutions: In a first aspect, the present application provides an adjustable angle wind-blown snow fence, comprising a fence structure and an adjustment device; The fence device comprises a fixed frame and an adjustable frame, a plurality of grid plates are arranged between the fixed frame and the adjustable frame, the plurality of grid plates are arranged at intervals at the bottom of the mountain, and the two sides of the grid plates are rotatably connected to the fixed frame and the adjustable frame respectively; The adjusting device comprises a parallel connecting rod structure, a base and a driving device; The base is connected to the free end of the parallel connecting rod structure, the adjustment frame is connected to the base, and the driving device is used to drive the free end of the parallel connecting rod to swing.

[0006] Preferably, the fixing frame and the adjusting frame are respectively connected to the grid plate via a rotating structure, and the rotating structure includes a rotating shaft and a fixing device; One end of the rotating shaft is connected to a column of a fixing frame or an adjusting frame, a fixing device is connected to the other end of the rotating shaft, and an edge fixing device of the grid plate is connected.

[0007] Preferably, a slot is provided on the fixing device; The fixing device connected to the fixing frame has a limiting portion at the lower end of the slot.

[0008] Preferably, the parallel link structure is arranged between the base and the base plate, and the parallel link structure includes a plurality of links, and the plurality of links are arranged at intervals and distributed in a rectangular shape. The lower end of the link is rotatably connected to the base plate, and the upper end of the link is rotatably connected to the bottom surface of the base.

[0009] Preferably, two connecting rods adjacent to each other along the length direction of the grid plate are connected by a shaft; The driving device is a piston cylinder, the fixed end of the driving device is rotatably connected to the base plate, and the control end of the driving device is connected to the shaft.

[0010] Preferably, the driving device is a turbine-worm structure, a turbine is provided at the lower end of the rocker arm, the worm is provided on the base plate, and the turbine is meshed with the worm.

[0011] Preferably, a sliding slot is provided on the base, and the lower end of the column of the adjustment frame is arranged in the sliding slot for adjusting the distance between the fixed frame and the adjustment frame.

[0012] Preferably, the fixing frame and the adjusting device are arranged on the base plate.

[0013] Preferably, the grid plate is an acrylic plate.

[0014] In a second aspect, the present application proposes a method for adjusting an angle-adjustable wind-blown snow fence, comprising: Install the adjustable angle wind-blown snow fence at the target location and on the upwind side of the target location, with the fence plate perpendicular to the dominant wind direction; When adjusting the angle of the grid plate, the free end of the parallel connecting rod structure is moved along an arc track through the driving device, and the base drives the adjustment frame to move, thereby realizing the adjustment of the grid plate angle.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: The present application provides an adjustable angle wind-blown snow fence, which connects the adjustment frame of the fence structure with the adjustment device, the adjustment device adopts a parallel connecting rod structure, and the driving device drives the parallel connecting rod structure to deform. During the deformation process, the free end of the parallel connecting rod structure moves along an arc track, and the arc track couples the horizontal displacement with the vertical displacement to simulate the angle adjustment process of the grid plate, so as to realize the rapid angle adjustment of the grid plate. Compared with the traditional snow fence with non-adjustable angle and air permeability, or the fixed and immovable snow fence, it is more suitable for different types of wind-blown snow environments, and different angles and air permeability can be adjusted according to different wind-blown snow disaster sizes. It is not only more effective in wind-blown snow prevention and control, but also saves material consumption, improves economy, saves construction manpower, improves efficiency, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic structural diagram of the wind-blown snow fence of the present invention; Figure 2 It is a schematic diagram of the installation of the snow guard of the present invention; Figure 3 It is a schematic diagram of the installation of the support frame of the present invention; Figure 4 It is a structural schematic diagram of the adjustment platform of the present invention.

[0017] In the figure: 1-column; 2-L-shaped bracket; 3-grid plate; 4-fixed platform; 5-base plate; 6-adjustment device; 7-snow ground; 101-round rod; 201-round sleeve; 502-round hole; 501-fixed anchor rod; 601-base; 602-connecting rod; 603-shaft; 604-cylinder; 605-steel pipe; 606-sliding slot. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0020] A wind-blown snow fence with adjustable angle and porosity, comprising a fence structure and an adjustment device 6; The fence device 1 includes a fixed frame and an adjustable frame, a plurality of grid plates are arranged between the fixed frame and the adjustable frame, the plurality of grid plates are arranged at intervals at the bottom of the mountain, and the two sides of the grid plates are rotatably connected to the fixed frame and the adjustable frame respectively; The adjusting device comprises a parallel connecting rod structure, a base and a driving device; The base is connected to the free end of the parallel connecting rod structure, the adjustment frame is connected to the base, and the driving device is used to drive the free end of the parallel connecting rod to swing.

[0021] In some embodiments, the fixing frame is a door frame structure or a column structure, a plurality of grid plates are arranged in the door frame from top to bottom at intervals, and one end of the side wall of the grid plate is rotatably connected to the door frame.

[0022] The door frame structure comprises two upright posts, and the upper ends of the two upright posts are connected to a cross beam to ensure the stability of the entire fixing frame.

[0023] The column structure comprises two columns 1 arranged at intervals, the two columns are arranged at intervals along the length direction of the grid plate, and one end of the side wall of the grid plate is rotatably connected to the door frame.

[0024] The structures of the fixed frame and the adjusting frame can be the same or different. The difference between the fixed frame and the adjusting frame is that the fixed frame is in a stable state, and its lower end is connected to the infrastructure, while the adjusting frame is connected to the adjusting device. By controlling the vertical and horizontal movement of the adjusting frame, the angle of the grid is controlled to achieve angle and porosity regulation.

[0025] In some embodiments, the two sides of the grid plate and the fixed frame and the adjustment frame form four connection nodes, the four connection nodes are distributed in a rectangular shape, each connection node is a rotation node, and the grid plate is connected to the column using a rotation structure.

[0026] The rotating structure includes a rotating shaft and a fixing device, one end of the rotating shaft is connected to the column and is installed horizontally, the other end of the rotating shaft is connected to the fixing device, the grid plate is connected to the fixing device, and the rotation connection with the column is achieved by rotation, thereby achieving flexibility in adjusting the angle of the grid plate. The fixing device connected to the fixing frame is the first fixing device, and the one connected to the adjusting frame is the second fixing device.

[0027] The first fixing device includes a plug plate 2 and a baffle plate, one side of the plug plate is fixedly connected to the rotating shaft, and a slot is provided on the side of the plug plate close to the grid plate, the edge of the plug plate is inserted in the slot, and the baffle plate is arranged at the lower end of the slot to position the grid plate to prevent the grid plate from sliding and separating from the fixed structure under the action of gravity, causing the grid plate to fall off from the fence device.

[0028] The structure of the second fixing device is the same as the first fixing structure, except that the first fixing structure does not have a baffle. During the installation of the grid plate, the two ends of the grid plate are inserted into the slots of the first fixing structure, and then the grid plate is pushed until the grid plate is plugged into the second fixing structure and the lower end of the grid plate abuts against the single plate.

[0029] See also Figure 1 In this embodiment, the first fixing device is an L-shaped bracket 2.

[0030] The rotating shaft includes a circular rod 101 and a circular sleeve 201 which are sleeved with each other. The end of the circular rod 101 is fixedly connected to the column, and the fixing device is connected to the circular sleeve 201.

[0031] In some embodiments, the parallel linkage structure can realize arc-shaped reciprocating swing of the free end, thereby adjusting the windward angle of the grid plate. During the adjustment process, the free end of the grid plate undergoes displacement in two directions, horizontal displacement and vertical displacement. During the adjustment process, the two ends are coupled to form an arc-shaped trajectory. The movement process of the parallel linkage structure serves to simulate the arc-shaped trajectory of the grid plate adjustment and realize the angle adjustment of the grid plate.

[0032] The parallel connecting rod structure is arranged between the base 601 and the base plate 5, and the parallel connecting rod structure includes multiple connecting rods 602, which are arranged at intervals and distributed in a rectangular shape. The lower end of the connecting rod is rotatably connected to the base plate 5, and the upper end of the connecting rod is rotatably connected to the bottom surface of the base. The lower end of the column 1 of the adjustment frame is fixedly connected to the base, the middle parts of two laterally adjacent connecting rods are connected by an axis 603, and the two adjacent axes are connected by a steel pipe 605.

[0033] The driving device is an air cylinder, an oil cylinder or an electric push rod. The cylinder body of the driving device is rotatably connected to the base plate, and the piston of the cylinder body of the driving device is rotatably connected to the shaft 603.

[0034] In this embodiment, the number of connecting rods is 6, and the 6 connecting rods are divided into three groups. The three groups of connecting rods are arranged at intervals along the horizontal displacement direction of the grid plate. The piston is connected to the axis of the middle connecting rod group. The driving device controls the swing direction of the parallel connecting rod structure by controlling the movement direction of the piston. When the piston is extended, the angle of the grid plate rotates in the horizontal direction, that is, the gap between two adjacent grid plates is increased, thereby increasing the air permeability; when the piston is contracted, the grid plate rotates in the vertical direction, thereby increasing the windward area of ​​the grid plate.

[0035] In some embodiments, a sliding slot 606 is further provided on the top of the base 601, and the lower end of the column of the adjustment frame is set in the sliding slot 606, and the column can move in the sliding slot 606 along the horizontal displacement direction of the grid plate, which is used to adjust the distance between the fixed frame and the adjustment frame. It should be noted that the adjustment frame remains in a fixed state in the sliding slot during the process of adjusting the grid plate angle.

[0036] The lower end of the column of the fixing frame is connected to the base plate 5 through the fixing platform 4, and the column and the fixing platform 4 are connected by pins after being vertically plugged.

[0037] See also Figure 3 , circular holes 502 are provided at both ends of the base plate 5, and fixed anchor rods 502 are provided in the circular holes 502. The base plate is fixed to the ground by the fixed anchor rods, and the fixed anchor rods are nailed into the ground after passing through four groups of circular holes to fix the snow fence, and it is also convenient to move the snow fence.

[0038] The grid plate is an acrylic plate, and the acrylic plate is used to reduce the weight of the snow-proof grid.

[0039] The present invention sets an adjustable angle snow fence in areas with severe snowstorm disasters. Compared with the traditional snow fence with non-adjustable angle and air permeability, or the fixed and immovable snow fence, it is more suitable for different types of snowstorm environments and can adjust different angles and air permeability according to the size of different snowstorm disasters. It is not only more effective in preventing and controlling snowstorms, but also saves material consumption, improves economy, saves construction manpower, improves efficiency, and reduces costs.

[0040] The following is a detailed description of the construction method of the wind-blown snow fence with adjustable angle and porosity provided by the present application, as follows: Step 1: In areas with severe snow and wind, after clearing and leveling the ground where the snow fence is to be installed, the base plate 5 is placed flat on the snow 7 along a straight line, and the fixing anchor rods 501 are inserted into the ground through the four groups of circular holes 502 to firmly fix the base plate; Step 2: On the basis of step 1, the column 1 is installed on the base plate 5 on the fixed platform 4, and the column 1 and the fixed platform 4 are connected by two sets of screws; after installing the adjustment device 6, a slidable slot 606 is installed on the base 601 of the adjustment device, and the column 1 is installed on the slidable slot 606. After the L-shaped bracket 2 is connected to the column 1, the snow shield 3 is installed on the L-shaped bracket; Step 3: Control the piston extension and retraction of the driving device to make the adjusting device move in an arc shape, thereby controlling the angle and air permeability of the snow fence.

[0041] The construction method of the present invention can adapt to the prevention and control of different wind and snow environments by installing wind and snow anti-snow fences with adjustable angles and air permeability in places with severe wind and snow, thereby avoiding the harm caused by wind and snow to the greatest extent.

[0042] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of information available from public channels and in combination with the technical inspiration provided by the present application documents.

Claims

1. An adjustable angle wind-blown snow fence, characterized in that: Includes fence structure and adjustment device; The fence device comprises a fixed frame and an adjustable frame, a plurality of grid plates are arranged between the fixed frame and the adjustable frame, the plurality of grid plates are arranged at intervals at the bottom of the mountain, and the two sides of the grid plates are rotatably connected to the fixed frame and the adjustable frame respectively; The adjusting device comprises a parallel connecting rod structure, a base and a driving device; The base is connected to the free end of the parallel connecting rod structure, the adjustment frame is connected to the base, and the driving device is used to drive the free end of the parallel connecting rod to swing.

2. The adjustable angle wind-blown snow fence according to claim 1, characterized in that: The fixing frame and the adjusting frame are respectively connected to the grid plate through a rotating structure, and the rotating structure includes a rotating shaft and a fixing device; One end of the rotating shaft is connected to a column of a fixing frame or an adjusting frame, a fixing device is connected to the other end of the rotating shaft, and an edge fixing device of the grid plate is connected.

3. The adjustable angle wind-blown snow fence according to claim 2, characterized in that: The fixing device is provided with a slot; The fixing device connected to the fixing frame has a limiting portion at the lower end of the slot.

4. The adjustable angle wind-blown snow fence according to claim 1, characterized in that: The parallel connecting rod structure is arranged between the base and the base plate. The parallel connecting rod structure includes a plurality of connecting rods, which are arranged at intervals and distributed in a rectangular shape. The lower end of the connecting rod is rotatably connected to the base plate, and the upper end of the connecting rod is rotatably connected to the bottom surface of the base.

5. The adjustable angle wind-blown snow fence according to claim 4, characterized in that: Two adjacent connecting rods along the length direction of the grid plate are connected by a shaft; The driving device is a piston cylinder, the fixed end of the driving device is rotatably connected to the base plate, and the control end of the driving device is connected to the shaft.

6. The adjustable angle wind-blown snow fence according to claim 4, characterized in that: The driving device is a worm gear structure, a worm gear is arranged at the lower end of the rocker, the worm gear is arranged on the base plate, and the worm gear is meshed with the worm gear.

7. The adjustable angle wind-blown snow fence according to claim 1, characterized in that: The base is provided with a sliding slot, and the lower end of the column of the adjustment frame is arranged in the sliding slot for adjusting the distance between the fixed frame and the adjustment frame.

8. The adjustable angle wind-blown snow fence according to claim 1, characterized in that: The fixing frame and the adjusting device are arranged on the base plate.

9. The adjustable angle wind-blown snow fence according to claim 1, characterized in that: The grid plate is an acrylic plate.

10. A method for adjusting an angle-adjustable wind-blown snow fence according to any one of claims 1 to 9, characterized in that: include: Install the adjustable angle wind-blown snow fence at the target location and on the upwind side of the target location, with the fence plate perpendicular to the dominant wind direction; When adjusting the angle of the grid plate, the free end of the parallel connecting rod structure is moved along an arc track through the driving device, and the base drives the adjustment frame to move, thereby realizing the adjustment of the grid plate angle.

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