Sun-shading device for embankment slope of frozen soil

Abstract

The application relates to the field of frozen soil area sunshading devices, in particular to a frozen soil roadbed slope sunshading device which comprises multiple groups of supporting assemblies, sunshading plates arranged on the supporting assemblies, locking pieces arranged on the sunshading plates, and connecting pieces for connecting adjacent two sunshading plates and the locking pieces, the supporting assembly comprises a base, a vertical pipe fixedly connected to the lower end of the base, and a horizontal rod connected to the upper end of the vertical pipe, the upper part of the horizontal rod is processed into an arc-shaped convex surface, the sunshading plate is in a wave shape, the arc-shaped concave surface of the sunshading plate is matched with the arc-shaped convex surface of the horizontal rod, and the arc-shaped concave surface of the lower plate surface of the sunshading plate is arranged on the horizontal rod, so that the effect of reducing the absorption of solar radiation by the frozen soil roadbed and improving the stability of the frozen soil roadbed is achieved.

Description

Technical Field

[0001] This application relates to the field of sunshade devices for permafrost regions, and in particular to a sunshade device for permafrost roadbed slopes. Background Technology

[0002] Currently, permafrost is a type of soil that is extremely sensitive to temperature and exhibits certain rheological properties. Two major challenges in constructing highways in permafrost regions are frost heave and thaw settlement, in which the form of water plays a crucial role. Frost heave occurs when water freezes, causing the soil to expand and the surface to rise due to the increased volume. Thaw settlement occurs when ice in the soil turns into water, causing the soil to shrink and the surface to subside. Under the repeated interaction of these two phenomena, the permafrost beneath the roadbed will experience uneven settlement due to thermal imbalance, leading to cracking or collapse.

[0003] To address the problem of uneven settlement of frozen soil caused by thermal imbalance in the roadbed, existing methods typically involve inserting heat pipes into the roadbed to prevent thawing and settlement, or burying ventilation pipes in the roadbed to keep the frozen soil frozen.

[0004] The existing technical solutions mentioned above have the following drawbacks: Since permafrost usually exists in high-altitude areas, solar radiation is also one of the important factors leading to permafrost thawing and settlement. The strong solar radiation in high-altitude areas will cause the permafrost roadbed to absorb a large amount of heat. Heat pipes alone cannot effectively maintain the thermal balance of the permafrost, which will lead to the permafrost melting faster and cause roadbed subsidence and roadbed disease. Utility Model Content

[0005] This application provides a shading device for permafrost roadbed slopes to mitigate the absorption of solar radiation and improve the stability of permafrost roadbeds.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] A sunshade device for frozen soil roadbed slope includes multiple sets of support components, sunshade plates disposed on the support components, locking components disposed on the sunshade plates, and connecting components for connecting two adjacent sunshade plates and the locking components.

[0008] The support assembly includes a base, a vertical tube fixed at its lower end to the base, and a horizontal bar connected to the upper end of the vertical tube, the upper part of which is machined into an arc-shaped convex surface;

[0009] The sunshade is wavy, with its concave surface matching the convex surface of the crossbar, and the concave surface of the lower part of the sunshade rests on the crossbar.

[0010] By adopting the above technical solution, the vertical pipe is buried in the frozen soil of the roadbed slope, providing a stable installation foundation for the entire sunshade device. Locking components, in conjunction with connecting components, can connect adjacent sunshade panels, making the sunshade panels more stable in the frozen soil environment. When sunlight shines on the wavy sunshade panel, due to the undulating surface, the light undergoes multiple reflections, refractions, and scattering at different crests and troughs, dispersing the light in various directions, achieving a sunshade effect and reducing light pollution. This blocks direct solar radiation from reaching the roadbed slope surface, reducing the heat absorbed by the roadbed, thus reducing the temperature rise of the permafrost, maintaining the permafrost in a relatively stable frozen state, and ensuring the stability of the roadbed, preventing roadbed subsidence, deformation, and other problems caused by permafrost thawing. Furthermore, compared to flat panels, wavy sunshades, due to their regular undulating structure, cause the airflow direction and speed to change when the wind passes over the surface of the wavy panel. This disperses and dissipates some of the wind energy, thereby reducing the wind pressure on the sunshade as a whole and relatively improving its wind resistance.

[0011] Optionally, the sunshade includes an outer layer, a middle layer, and a bottom layer. The outer layer is a high-density polyethylene board with an anti-ultraviolet coating or a metal board with a nano-ceramic coating. The middle layer is an embedded aerogel or vacuum insulation board. The inner layer is made of corrosion-resistant aluminum alloy board.

[0012] By adopting the above technical solutions, the sunshade panel has the characteristics of high shading efficiency and strong cold and frost resistance, as well as the advantages of light weight, easy disassembly and transportation, which is beneficial for shading roadbed slopes in frozen soil areas.

[0013] Optionally, the vertical tube is internally fixed with a fixing plate, a first spring disposed inside the vertical tube and located above the fixing plate, a baffle movably disposed above the first spring, a vertical rod whose length direction is perpendicular to the baffle plate surface and whose lower end is fixed to the baffle plate, and a fixing ring fixedly disposed at the upper end of the vertical tube and located above the baffle plate. The end of the vertical rod away from the baffle plate passes through the fixing ring and is located outside the upper end of the vertical tube. The upper end of the vertical rod is hinged to the horizontal rod.

[0014] Such a device also includes a drive assembly disposed on the outer wall of the vertical tube, the drive assembly being used to drive the sunshade to adjust its angle.

[0015] By adopting the above technical solution, it is possible to provide stable support and installation for the wave-shaped sun visor, and also to adjust the angle of the sun visor in conjunction with the drive component. When the angle of the sun visor changes due to the drive component, the first spring, the vertical rod, and the horizontal rod hinged to the vertical rod can provide stable adjustment for the rotation of the sun visor angle.

[0016] Optionally, the drive assembly includes a hinge rod with one end hinged to the outer wall of the vertical pipe, a connecting pipe rotatably connected to the other end of the hinge rod, and an electric push rod with one end hinged to the outer wall of the vertical pipe and spaced apart from the end of the hinge rod. The electric push rod is connected to an external power source and is located below the hinge rod. The end of the electric push rod away from the vertical pipe is rotatably connected to the end of the connecting pipe. A strip hole is provided on the connecting pipe along its length, and the side of the sunshade can pass through the strip hole into the inside of the connecting pipe.

[0017] By adopting the above technical solution, the side of the sunshade is inserted into the connecting pipe through the strip hole, thereby supporting the entire sunshade. By extending and retracting the electric push rod, the height of the side of the sunshade can be changed at an angle, thereby adjusting the angle of the sunshade to dynamically optimize the sunshade efficiency according to different solar altitude angles.

[0018] Optionally, the drive assembly also includes a PLC processor electrically connected to the electric actuator, which controls the electric actuator to extend and retract at regular intervals according to the sunrise time in the area where the shading device is located.

[0019] By adopting the above technical solution, the electric push rod is controlled by a PLC processor to extend and retract, which not only replaces manual adjustment by staff, but also improves the operational stability and accuracy of the sunshade angle adjustment process.

[0020] Optionally, the connector includes an integrally formed cover plate and an insert plate. One side of the insert plate is connected to the center line of the cover plate and the two end faces are T-shaped. The insert plate has a locking hole for the locking member to be inserted into. The side of the insert plate away from the cover plate has a clearance groove. The crossbar can be inserted into the clearance groove and the insert plate (52) is lower than the lower surface of the sunshade.

[0021] By adopting the above technical solution, the cover plate can be fitted snugly onto the upper surface of two adjacent sun visors. After the insert plate is inserted between two adjacent side plates, it can engage with the locking mechanism, thereby enabling quick connection and assembly of the two adjacent sun visors. When it is necessary to replace or repair the sun visor, the sun visor can be quickly disassembled by contacting the locking mechanism and the insert plate.

[0022] Optionally, the locking component includes a housing fixedly disposed on the lower surface of the sun visor with a closed end and an open end respectively, an end cap installed on the open end of the housing, a locking cylinder passing through the closed end of the housing and the end cap with both ends located outside the housing, an unlocking rod passing through the locking cylinder, a locking spring piece in the form of a U-shape that is locked on the locking cylinder and located inside the housing, a second spring disposed in the spring piece, and a third spring sleeved on the locking cylinder. The third spring is located at the end of the locking spring piece away from the unlocking rod. A connecting hole is provided on the side wall of the housing so that the locking spring piece can be inserted into the locking hole after extending out of the connecting hole.

[0023] By adopting the above technical solution, when the locking spring is inserted into the locking hole, the locking cylinder compresses the third spring. The compressed third spring can provide a stable elastic force to the locking spring, so that the locking spring is stably locked in the locking hole. When it is necessary to release the locking relationship between the locking spring and the locking hole, pressing the unlocking rod causes the unlocking rod to deform the locking spring and retract into the housing. At the same time as pressing the unlocking rod, the unlocking rod compresses the second spring. When the locking spring is completely retracted into the housing, the second spring and the third spring push the unlocking rod and the locking cylinder outward from the housing, thereby completely releasing the locking relationship between the locking spring and the locking hole. The locking component can be stably connected to the insert plate part, and it is also convenient to quickly disassemble and assemble two adjacent sunshades, which is beneficial to the use of the staff.

[0024] Optionally, the outer wall of the locking cylinder is integrally formed and has a first limiting edge and a second limiting edge spaced apart. The first limiting edge and the second limiting edge are both located inside the outer shell, and the two ends of the third spring abut against the second limiting edge and the end cap, respectively.

[0025] The locking cylinder has a notch on its outer wall near the second limiting edge for inserting the locking spring. Two clearance openings are symmetrically opened on the outer wall of the locking cylinder between the notch and the first limiting edge, allowing the locking spring to deform.

[0026] By adopting the above technical solution, the first limiting edge allows the locking cylinder to be stably installed in the outer shell and to slide. The second limiting edge cooperates with the end cap to stably install the third spring in the outer shell while also providing a stable elastic force to the locking cylinder. The locking spring can undergo elastic deformation through the clearance opening, thereby extending out of the outer shell and engaging in the locking hole.

[0027] Optionally, the locking spring is integrally formed and includes an L-shaped bent section that abuts against the end face of the limiting post, a connecting section connected to one end of the bent section, an L-shaped snap-fit ​​section connected to the end of the connecting section away from the bent end, and a driving section connected to the end of the snap-fit ​​section away from the connecting section.

[0028] The bending section is locked inside the notch, the connecting section and the locking section are both located outside the clearance opening, the driving section is located inside the clearance opening, the length direction of the connecting section is parallel to the length direction of the locking cylinder, the L-shaped opening of the locking section is aligned with the overall opening of the locking spring, and the bent part of the locking section can extend out of the connecting hole to the outside of the outer shell and lock into the locking hole.

[0029] By adopting the above technical solution, the locking spring can be stably installed inside the housing, and the locking spring can also deform and be inserted into the locking hole or retracted into the housing, which facilitates the connection and disassembly of two adjacent sun visors.

[0030] Optionally, the unlocking rod is integrally formed with a third limiting ridge on one inner end of the housing. The third limiting ridge is located inside the locking spring and abuts against the end of the second spring.

[0031] The section of the unlocking lever inside the housing is machined with a bevel from the end to the middle. The bevel at the end of the unlocking lever is lower than the end in the middle of the unlocking lever. The bevel is located on one side of the U-shaped opening of the locking spring.

[0032] A rectangular hole is provided on the drive section, the unlocking rod is inserted into the rectangular hole, and one end of the second spring abuts against the inner wall of the bending section.

[0033] By adopting the above technical solution, the locking spring can be deformed on the outside of the outer shell through the inclined surface, which facilitates the unlocking of the locking spring and the insert plate.

[0034] In summary, this application has the following technical effects:

[0035] 1. By setting up support components, a wave-shaped sunshade, locking components, and connectors, when sunlight shines on the wave-shaped sunshade, due to the undulating surface of the sunshade, the light will be reflected, refracted, and scattered multiple times at different crests and troughs, dispersing the light in all directions, achieving a sunshade effect and reducing light pollution. This blocks solar radiation from directly hitting the roadbed slope surface, reducing the heat absorbed by the roadbed, thereby reducing the temperature rise of permafrost, keeping the permafrost in a relatively stable frozen state, and thus ensuring the stability of the roadbed and preventing roadbed subsidence, deformation, and other diseases caused by permafrost thawing.

[0036] 2. By setting an outer layer, middle layer and bottom layer, the sunshade has the characteristics of high shading efficiency and strong cold and frost resistance, as well as the advantages of light weight, easy disassembly and transportation, which is conducive to shading roadbed slopes in frozen soil areas.

[0037] 3. By setting up a fixed plate, a first spring, a baffle, a vertical rod, a fixed ring, and a drive assembly, it can provide stable support and installation for the wave-shaped sunshade, and can also work with the drive assembly to adjust the angle of the sunshade. When the drive assembly causes the angle of the sunshade to change, it can provide stable adjustment for the rotation process of the sunshade. Attached Figure Description

[0038] Figure 1 This is a structural diagram of the object of this application;

[0039] Figure 2 It is an exploded structural diagram of the sun visor, locking components, and connectors;

[0040] Figure 3 This is a structural diagram of the support frame and drive assembly;

[0041] Figure 4 It is a cross-sectional structural diagram of the vertical pipe;

[0042] Figure 5 yes Figure 4 Enlarged structural diagram of section A;

[0043] Figure 6 This is a structural diagram of the locking component;

[0044] Figure 7 This is a cross-sectional structural diagram of the locking component;

[0045] Figure 8 This is an exploded view of the locking component.

[0046] Explanation of reference numerals in the attached drawings: 1. Support assembly; 11. Base; 12. Vertical tube; 121. Fixing plate; 122. First spring; 123. Baffle; 124. Vertical rod; 125. Fixing ring; 126. Base plate; 13. Horizontal rod; 2. Drive assembly; 21. Hinge rod; 22. Connecting tube; 221. Sealing plate; 222. Fixing shaft; 223. First sleeve; 224. Second sleeve; 225. Limiting plate; 226. Strip hole; 23. Electric push rod; 3. Sunshade; 4. Locking component; 41. Outer shell; 42. End cap; 43. Locking cylinder; 431. First limiting ridge; 432. Second limiting ridge; 433. Notch; 44. Unlocking rod; 441. Third limiting ridge; 442. Bevel; 45. Locking spring; 451. Bending section; 452. Connecting section; 453. Snap-fit ​​section; 454. Drive section; 46. Second spring; 47. Third spring; 5. Connecting component; 51. Cover plate; 52. Insert plate; 53. Locking hole; 54. Relief groove. Detailed Implementation

[0047] The present application will be further described in detail below with reference to the accompanying drawings.

[0048] This application discloses a sunshade device for frozen soil roadbed slopes, combined with... Figure 1 and Figure 2 The sunshade device includes multiple sets of support components 1 for installation on the slope, a drive component 2 installed on the support component 1 located at the bottom of the slope, a sunshade plate 3 installed on the support component 1 and the drive component 2, a locking component 4 installed on the sunshade plate 3, and a connecting component 5 for connecting two adjacent sunshade plates 3 and locking components 4. The multiple sets of support components 1 are spaced apart from bottom to top along the slope 442 of the frozen soil roadbed slope.

[0049] Combination Figure 3 and Figure 4 The support assembly 1 includes a base 11, a vertical pipe 12 fixed to the base 11 at its lower end, and a horizontal bar 13 hinged to the upper end of the vertical pipe 12. The base 11 is made of cast concrete and is buried in the frozen soil of the roadbed slope, providing a stable installation foundation for the entire sunshade device. A base plate 126 is fixed to the lower end of the vertical pipe 12. The surface of the base plate 126 is perpendicular to the length of the vertical pipe 12, and the edge of the plate is spaced apart from the outer wall of the vertical pipe 12. Multiple through holes are opened around the vertical pipe 12 on the base plate 126. Bolts are inserted through the through holes and screwed into the base 11 to stably connect the vertical pipe 12 to the base 11. Inside the vertical tube 12, there is a fixed plate 121 with its surface perpendicular to the length direction of the vertical tube 12; a first spring 122 located inside the vertical tube 12 and above the fixed plate 121; a baffle 123 movably located above the upper end of the first spring 122; a vertical rod 124 with its length direction perpendicular to the surface of the baffle 123 and its lower end fixed to the baffle 123 away from the surface of the first spring 122; and a fixing ring 125 fixedly located at the upper end of the vertical tube 12 and above the baffle 123. One end of the vertical rod 124 away from the baffle 123 passes through the fixing ring 125 and is located outside the upper end of the vertical tube 12. The upper end of the vertical rod 124 is hinged to the horizontal rod 13, and the upper part of the horizontal rod 13 is machined into an arc-shaped convex surface.

[0050] Combination Figure 4 and Figure 5 The drive assembly 2 includes a hinge rod 21 with one end hinged to a section of the upper outer wall of the vertical tube 12, a connecting pipe 22 connected to the other end of the hinge rod 21 and perpendicular in length to the hinge rod 21 and the vertical tube 12, and an electric push rod 23 with one end connected to the outer wall of the vertical tube 12 and spaced apart from the end of the hinge rod 21. The electric push rod 23 is connected to an external power source. The electric push rod 23 is located below the hinge rod 21, and the end of the electric push rod 23 away from the vertical tube 12 is also rotatably connected to the end of the connecting pipe 22.

[0051] A sealing plate 221 is fixedly installed at both ends of the connecting pipe 22. A fixed shaft 222 is fixedly installed on the outer wall of the sealing plate 221 along the same axis as the connecting pipe 22. A first sleeve 223 and a second sleeve 224 are sleeved on the fixed shaft 222. A limiting plate 225 for limiting the sleeve is fixedly connected to the end of the fixed shaft 222 away from the sealing plate 221. The ends of the hinge rod 21 and the electric push rod 23 are fixedly connected to the outer walls of the first sleeve 223 and the second sleeve 224, respectively. Thus, after the electric push rod 23 extends or retracts, the height of the connecting pipe 22 can change.

[0052] A strip-shaped hole 226 is provided on the connecting pipe 22 along its length direction, and the side of the sunshade 3 can pass through the strip-shaped hole 226 and be inserted into the connecting pipe 22.

[0053] The drive assembly 2 also includes a PLC processor electrically connected to the electric push rod 23. Based on the sunrise time in the area where the shading device is located, the PLC processor controls the electric push rod 23 to extend and retract in a timed and regular manner, thereby dynamically optimizing the shading efficiency according to the solar altitude angle.

[0054] Reference Figure 1 The sunshade 3 is wavy, and its concave surface matches the convex surface of the crossbar 13. The concave surface of the lower part of the sunshade 3 rests on multiple crossbars 13. After the sunshade 3 located at the end of the frozen soil roadbed slope is placed on the support assembly 1, it can be connected to the sunshade 3 by screws or other connecting parts 5, which are inserted into the bottom of the crossbars 13.

[0055] The wavy sunshade 3 effectively improves shading performance. When sunlight shines on the wavy sunshade 3, the undulating surface causes multiple reflections, refractions, and scattering at different crests and troughs, dispersing the light in various directions. This achieves shading and reduces light pollution, thus blocking direct solar radiation from reaching the roadbed slope surface and reducing the heat absorbed by the roadbed. This reduces the temperature rise of permafrost, keeping it in a relatively stable frozen state, ensuring roadbed stability and preventing subsidence and deformation caused by permafrost thawing. Furthermore, compared to flat panels, the wavy sunshade 3 has advantages in wind load resistance due to its regular undulating structure. When wind passes over the surface of the wavy panel, the airflow direction and speed change due to the surface shape, dispersing and dissipating some wind energy, thereby reducing the wind pressure on the sunshade 3 and relatively improving its wind resistance.

[0056] In this embodiment, the sunshade 3 includes an outer layer, a middle layer, and an inner layer (not shown in the figure). The outer layer is a metal plate with an outer surface coated with UV-resistant high-density polyethylene or a metal plate with an outer surface coated with a nano-ceramic coating. The middle layer is an embedded aerogel or vacuum insulation plate, and the inner layer is made of corrosion-resistant aluminum alloy plate. The surface of the sunshade 3 is enhanced with a fluorocarbon coating or anodizing process to improve weather resistance, and a low-temperature toughening agent, such as modified polyurethane, is added inside to resist low-temperature brittleness. The sunshade 3 as a whole has the characteristics of high shading efficiency and strong cold and frost resistance, as well as the advantages of light weight, easy disassembly and assembly, and transportation, which is beneficial for shading roadbed slopes in permafrost areas.

[0057] Combination Figures 6-8 The locking component 4 includes a housing 41 fixedly mounted on the lower surface of the sun visor 3, with a closed end and an open end respectively; an end cap 42 mounted on the open end of the housing 41; a locking cylinder 43 passing through the closed end and end cap 42 of the housing 41, with both ends located outside the housing 41; an unlocking rod 44 passing through the locking cylinder 43; a locking spring 45, which is U-shaped and locked onto the locking cylinder 43 and located inside the housing 41; a second spring 46 located inside the spring; and a third spring 47 sleeved on the locking cylinder 43, with the third spring 47 located at the end of the locking spring 45 opposite to the unlocking rod 44. A connecting hole for the locking end of the locking component 4 to extend is provided on the side wall of the housing 41. The outer surface of the housing 41 is square, and an ear plate is provided on the outer wall of the housing 41. The square shape of the housing 41 facilitates fitting against the surface of the sun visor 3, and the ear plate facilitates the installation of the housing 41 on the sun visor 3. The end cap 42 is a threaded cap, which is connected to the open end of the outer shell 41 by threads. Both the closed end of the outer shell 41 and the end cap 42 are provided with through holes.

[0058] The locking cylinder 43 is integrally formed on its outer wall and has a first limiting ridge 431 and a second limiting ridge 432 spaced apart. Both the first limiting ridge 431 and the second limiting ridge 432 are located inside the outer shell 41. The first limiting ridge 431 prevents the locking cylinder 43 from disengaging from the closed end of the outer shell 41. The two ends of the third spring 47 abut against the second limiting ridge 432 and the end cap 42, respectively. A notch 433 for inserting the locking spring 45 is provided on the outer wall of the locking cylinder 43 near the second limiting ridge 432. Two clearance openings (not shown in the figure) are symmetrically provided on the outer wall of the locking cylinder 43 between the notch 433 and the first limiting ridge 431. The clearance openings allow the locking spring 45 to deform. The locking cylinder 43 has a square interior, and the unlocking rod 44 is also square and fits into the interior of the locking cylinder 43. A third limiting ridge 441 is integrally formed on one end of the unlocking rod 44 located inside the outer casing 41. The unlocking rod 44 passes through the locking spring 45, and the third limiting ridge 441 is located inside the locking spring 45, abutting against the end of the second spring 46. A section of the unlocking rod 44 inside the outer casing 41 has a bevel 442 formed from its end towards its middle. The end of the bevel 442 at the end of the unlocking rod 44 is lower than the end at its middle. The bevel 442 is located on one side of the U-shaped opening of the locking spring 45.

[0059] The locking spring 45 is integrally formed and includes an L-shaped bent section 451 that abuts against the end face of the limiting post, a connecting section 452 connected to one end of the bent section 451, an L-shaped locking section 453 connected to the end of the connecting section 452 away from the bent end, and a driving section 454 connected to the end of the locking section 453 away from the connecting section 452. The bent section 451 is locked in the notch 433, the connecting section 452 and the locking section 453 are both located outside the clearance opening, and the driving section 454 is located inside the clearance opening. The length direction of the connecting section 452 is parallel to the length direction of the locking cylinder 43. The L-shaped opening of the locking section 453 is aligned with the overall opening of the locking spring 45, and the bent part of the locking section 453 can extend out of the connecting hole to the outside of the outer shell 41 and lock with the connecting piece 5. A rectangular hole is provided on the drive section 454, the unlocking rod 44 is inserted into the rectangular hole, and one end of the second spring 46 abuts against the inner wall of the bent section 451.

[0060] Referring to the figure, the connector 5 includes an integrally formed cover plate portion 51 and insert plate portion 52. One side of the insert plate portion 52 in the length direction is connected to the center line of the cover plate portion 51 and the end faces of the two are T-shaped. The cover plate portion 51 and the insert plate portion 52 have the same length. The cover plate portion 51 is wavy and can fit against the upper plate surface of the sunshade 3. The plate surface of the insert plate portion 52 is provided with a locking hole 53 for the snap-fit ​​section 453 to be snapped into. The insert plate portion 52 has multiple clearance grooves 54 on the side opposite to the cover plate portion 51. The clearance grooves 54 are arc-shaped recessed notches that are adapted to the arc-shaped protruding surface of the crossbar 13. The insert plate portion 52 is inserted into the gap between two adjacent sunshades 3. After the clearance grooves 54 are engaged on the crossbar 13, the insert plate portion 52 is lower than the lower surface of the sunshade 3. The cover plate portion 51 is covered and attached to the upper surface of the two adjacent sunshades 3. After the insert plate portion 52 is inserted under the two adjacent sunshades 3, the locking cylinder 43 is pressed, which pushes the locking spring 45 so that the locking section 453 extends out of the outer shell 41 and engages in the locking hole 53, thereby connecting the two adjacent sunshades 3. When the sun visor 3 needs maintenance or replacement, press the unlocking lever 44 into the housing 41. The inclined surface 442 of the unlocking lever 44 moves away from the locking hole 53, driving the drive section 454 and causing the locking section 453 to disengage from the locking hole 53. Simultaneously, pressing the unlocking lever 44 compresses the second spring 46. The compressed second spring 46 then springs back, causing the unlocking lever 44 to pop out of the locking cylinder 43. Through the cooperation of the locking component 4 and the connecting component 5, two adjacent sun visors 3 can be quickly connected, and the connection between adjacent sun visors 3 can be easily released, facilitating future maintenance and replacement of the sun visors 3.

[0061] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A shading device for frozen soil roadbed slopes, characterized in that: The sunshade device includes multiple sets of support components (1), sunshade panels (3) disposed on the support components (1), locking members (4) disposed on the sunshade panels (3), and connecting members (5) for connecting two adjacent sunshade panels (3) and the locking members (4); The support assembly (1) includes a base (11), a vertical tube (12) with its lower end fixed to the base (11), and a horizontal bar (13) connected to the upper end of the vertical tube (12). The upper part of the horizontal bar (13) is machined into an arc-shaped convex surface. The sunshade (3) is wavy. The concave surface of the sunshade (3) matches the convex surface of the crossbar (13), and the concave surface of the lower plate of the sunshade (3) rests on the crossbar (13).

2. The shading device for frozen soil roadbed slopes according to claim 1, characterized in that: The sunshade (3) includes an outer layer, a middle layer and an inner layer. The outer layer is a high-density polyethylene board with UV resistance or a metal board with a nano-ceramic coating. The middle layer is an embedded aerogel or vacuum insulation board. The inner layer is made of corrosion-resistant aluminum alloy board.

3. A shading device for frozen soil roadbed slopes according to claim 1, characterized in that: The vertical tube (12) is fixed with a fixing plate (121), a first spring (122) located inside the vertical tube (12) and above the fixing plate (121), a baffle (123) movably located at the upper end of the first spring (122), a vertical rod (124) with its length direction perpendicular to the surface of the baffle (123) and its lower end fixed to the baffle (123), and a fixing ring (125) fixed at the upper end of the vertical tube (12) and above the baffle (123). The end of the vertical rod (124) away from the baffle (123) passes through the fixing ring (125) and is located outside the upper end of the vertical tube (12). The upper end of the vertical rod (124) is hinged to the horizontal rod (13). The device also includes a drive assembly (2) disposed on the outer wall of the vertical tube (12), the drive assembly (2) being used to drive the sunshade (3) to adjust its angle.

4. A shading device for frozen soil roadbed slopes according to claim 3, characterized in that: The drive assembly (2) includes a hinge rod (21) with one end hinged to the outer wall of the vertical pipe (12), a connecting pipe (22) rotatably connected to the other end of the hinge rod (21), and an electric push rod (23) with one end hinged to the outer wall of the vertical pipe (12) and spaced apart from the end of the hinge rod (21). The electric push rod (23) is connected to an external power source. The electric push rod (23) is located below the hinge rod (21), and the end of the electric push rod (23) away from the vertical pipe (12) is rotatably connected to the end of the connecting pipe (22). A strip hole (226) is provided on the connecting pipe (22) along its length direction. The side of the sunshade (3) can pass through the strip hole (226) and be inserted into the connecting pipe (22).

5. A shading device for frozen soil roadbed slopes according to claim 4, characterized in that: The drive assembly (2) also includes a PLC processor electrically connected to the electric push rod (23), which controls the electric push rod (23) to extend and retract at regular intervals according to the sunrise time in the area where the sunshade device is located.

6. A shading device for frozen soil roadbed slopes according to any one of claims 1 or 5, characterized in that: The connector (5) includes an integrally formed cover plate (51) and insert plate (52). One side of the insert plate (52) in the length direction is connected to the center line of the cover plate (51) and the two end faces are T-shaped. The insert plate (52) has a locking hole (53) for the locking member (4) to be inserted into. The side of the insert plate (52) away from the cover plate (51) has a clearance groove (54). The crossbar (13) can be inserted into the clearance groove (54) and the insert plate (52) is lower than the lower surface of the sunshade (3).

7. A shading device for frozen soil roadbed slopes according to claim 6, characterized in that: The locking component (4) includes a housing (41) fixedly mounted on the lower surface of the sunshade (3) with a closed end and an open end respectively, an end cap (42) mounted on the open end of the housing (41), a locking cylinder (43) passing through the closed end of the housing (41) and the end cap (42) with both ends located outside the housing (41), an unlocking rod (44) passing through the locking cylinder (43), a locking spring (45) in the form of a U-shape, which is locked on the locking cylinder (43) and located inside the housing (41), a second spring (46) set in the spring, and a third spring (47) sleeved on the locking cylinder (43). The third spring (47) is located at the end of the locking spring (45) away from the unlocking rod (44). A connecting hole is provided on the side wall of the housing (41) so that the locking spring (45) can be inserted into the locking hole (53) after extending out of the connecting hole.

8. A shading device for frozen soil roadbed slopes according to claim 7, characterized in that: The locking cylinder (43) is integrally formed on its outer wall and is provided with a first limiting ridge (431) and a second limiting ridge (432) at intervals. The first limiting ridge (431) and the second limiting ridge (432) are both located inside the outer shell (41). The two ends of the third spring (47) abut against the second limiting ridge (432) and the end cap (42) respectively. The locking cylinder (43) has a notch (433) on its outer wall near the second limiting edge (432) for the locking spring (45) to be inserted. Two clearance openings are symmetrically opened on the outer wall of the locking cylinder (43) between the notch (433) and the first limiting edge (431), and the clearance openings allow the locking spring (45) to deform.

9. A shading device for frozen soil roadbed slopes according to claim 8, characterized in that: The locking spring (45) is integrally formed and includes an L-shaped bent section (451) that abuts against the end face of the limiting post, a connecting section (452) connected to one end of the bent section (451), an L-shaped snap-fit ​​section (453) connected to the end of the connecting section (452) away from the bent end, and a driving section (454) connected to the end of the snap-fit ​​section (453) away from the connecting section (452). The bent section (451) is fitted inside the notch (433), the connecting section (452) and the snap-fit ​​section (453) are both located outside the clearance opening, the driving section (454) is located inside the clearance opening, the length direction of the connecting section (452) is parallel to the length direction of the locking cylinder (43), the L-shaped opening of the snap-fit ​​section (453) is aligned with the overall opening of the locking spring (45), and the bent part of the snap-fit ​​section (453) can extend out of the connecting hole to the outside of the outer shell (41) and snap into the locking hole (53).

10. A shading device for frozen soil roadbed slopes according to claim 9, characterized in that: The unlocking rod (44) is integrally formed on one end of the outer shell (41) with a third limiting ridge (441). The third limiting ridge (441) is located inside the locking spring (45) and abuts against the end of the second spring (46). The unlocking lever (44) is located inside the housing (41) and a section is machined from the end to the middle to form a bevel (442). The end of the bevel (442) at the end of the unlocking lever (44) is lower than the end at the middle of the unlocking lever (44). The bevel (442) is located on the side of the U-shaped opening of the locking spring (45). A rectangular hole is provided on the drive section (454), the unlocking rod (44) is inserted into the rectangular hole, and one end of the second spring (46) abuts against the inner wall of the bending section (451).

Images