Device for preventing frost heaving of roadbed

Abstract

The utility model discloses a device for preventing roadbed frost heaving, and particularly relates to the technical field of roadbed engineering, the device comprises a long shell, short shells are fixedly connected to the front side of the left end and the rear side of the right end of the long shell, a second photo-thermal assembly is arranged in the long shell, and first photo-thermal assemblies are arranged in the two short shells. The middle of the upper end of the long shell is in threaded connection with a light transmission tube body, the front side and the rear side of the upper end of the long shell are jointly and fixedly connected with a fixing assembly, and the interior of the long shell and the interiors of the two short shells are fixedly connected with a plurality of heat conduction plates. According to the device for preventing the roadbed from frost heaving, in the using process, the long shell and the two short shells are used for enabling the lower portion of the whole device to form a shape similar to a cross, due to the fact that the cross-shaped structure is provided with four branches, better supporting and grasping force can be provided, stress can be evenly distributed when the device is subjected to external force, and the roadbed is prevented from frost heaving. And the overall stability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed engineering, in particular to a device for preventing roadbed from frost heaving. Background Art

[0002] An important characteristic of the surface soil in seasonally frozen areas is the winter freezing and spring thawing phenomenon caused by the seasonal positive and negative changes in temperature. The winter freezing and spring thawing phenomenon of the soil is essentially a solid-liquid phase change process of water in the soil. Due to the different densities of water in the solid and liquid phases, the volume of the same mass of water in the solid phase is 9% larger than that in the liquid phase, and the soil expands under negative temperature conditions.

[0003] When freezing, a heat pipe solar thermal device is needed to generate heat and thaw; however, the existing heat pipe solar thermal devices generally have a small thawing area, resulting in low thawing efficiency. Multiple solar thermal devices are required for thawing, which increases the thawing cost and reduces the use effect of the device. Moreover, the equipment is outdoors and is usually exposed to wind and rain, which affects the stability of the structure. If it is not maintained for a long time, the structure will be damaged, which affects the service life of the device.

[0004] Chinese patent document CN216347117U discloses a heat pipe type solar thermal device for roadbed frost heave, comprising a light transmission tube body, a base, a solar thermal component and a stabilizing component, wherein a base is installed on the bottom outer wall of the light transmission tube body, a solar thermal component is fixed on the bottom outer wall of the base, and a stabilizing component is fixed on the top outer wall of the base; the solar thermal component comprises an underground box, a heat conducting plate, a motor, a threaded rod, a slide groove, a movable plate, a threaded hole, a light thermal conversion rod and a slider, and an underground box is welded and fixed on the bottom outer wall of the base; the above utility model adopts a solar thermal device, which can increase the thawing range of the device, thus reducing the thawing device, thereby reducing the thawing cost and improving the use effect of the device; a stabilizing device is also adopted, which can support the device through a stabilizing structure to avoid shaking during wind and rain, thereby increasing the stability of the device and ensuring the service life of the device, but the above patent document still has the following defects during use:

[0005] During use of the above patent document, the buried box may tilt due to bumps during the landfill process because the surrounding soil has just been excavated, which reduces the overall stability of the device and affects the thawing effect. At the same time, the contact area between the heat conduction plate and the soil is limited, so the thawing efficiency will also be reduced. Utility Model Content

[0006] The main purpose of the utility model is to provide a device for preventing roadbed frost heave, which can effectively solve the problems of overall stability of the device and low thawing efficiency.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A device for preventing frost heave of roadbed comprises a long shell, wherein the left front end and the right rear end of the long shell are fixedly connected to short shells, a second photothermal component is arranged inside the long shell, and a first photothermal component is arranged inside the two short shells, a light transmission tube body is threadedly connected to the middle part of the upper end of the long shell, a fixing component is fixedly connected to the front and rear sides of the upper end of the long shell, and a plurality of heat conduction plates are fixedly connected to the long shell and the two short shells.

[0009] Preferably, the fixing assembly includes two connecting seats, the upper ends of the connecting seats are rotatably connected to support rods, the upper parts of the two support rods close to each other are fixedly connected to blocks, the outer surfaces of the two blocks are commonly provided with a limiting ring, the right part of the upper end of the limiting ring is threadedly connected to a screw rod that passes through the limiting ring and extends to the upper end of the long shell, and the right part of the upper end of the limiting ring is slidably connected to a limiting rod that passes through the limiting ring and extends to the upper end of the long shell.

[0010] Preferably, the two connecting seats are both fixedly connected to the long shell, the screw rod is rotationally connected to the long shell, and the limiting rod is fixedly connected to the long shell.

[0011] Preferably, the photothermal component includes a bidirectional screw, a photothermal conversion rod and a sliding rod. The outer surfaces of the bidirectional screw and the sliding rod are both provided with a fixed block. The upper fixed block is threadedly connected to the bidirectional screw, and the lower fixed block is slidably connected to the sliding rod. The ends of the two fixed blocks that are close to each other are commonly fixedly connected to the photothermal conversion rod, and the end of the bidirectional screw close to the long shell is fixedly connected to two meshing bevel gears.

[0012] Preferably, the two sliding rods are fixedly connected to the short shell on the same side, the two bidirectional screws are rotationally connected to the short shell on the same side, and the two fixed blocks located at the bottom are slidingly connected to the short shell on the same side.

[0013] Preferably, the second photothermal component includes a motor, a rotating rod and two sliding rods. The motor is fixedly connected to a two-way screw through a coupling at the output end. The rotating rod is located on the upper part of the two-way screw. The outer surface of the two-way screw and the outer surface of the two sliding rods are both provided with a fixed block. The fixed block located at the upper part is threadedly connected to the two-way screw, and the fixed block located at the lower part is slidably connected to the two sliding rods. The ends of the two fixed blocks that are close to each other are commonly fixedly connected to a photothermal conversion rod. The two-way screw and the rotating rod are connected together by two pulleys and a transmission belt. The rotating rod passes through two bevel gears on the same side and is fixedly connected to both bevel gears.

[0014] Preferably, the second sliding rod is fixedly connected to the long shell, the second bidirectional screw and the rotating rod are both rotatably connected to the long shell, and the second fixed block located at the bottom is slidably connected to the long shell.

[0015] Preferably, outer surfaces of the long shell and the two short shells are both corrugated.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. During use, the utility model utilizes a long shell and two short shells to form a "cross"-like lower portion of the device. The "cross"-shaped structure can provide better support and grip due to its four branches. When subjected to external force, it can evenly distribute the force, thereby enhancing the overall stability.

[0018] 2. During the use of the new type, the two short shells increase the overall stability of the device and also increase the contact area between the device and the soil when buried in the soil, further increasing the thawing range. At the same time, the motor can drive the second photothermal conversion rod and the two photothermal conversion rods to reciprocate, thereby improving the thawing efficiency, greatly reducing the cost, and improving the thawing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic cutaway diagram of the overall structure of the utility model;

[0021] Figure 3 For the utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0022] Figure 4 It is a schematic cutaway diagram of a local structure of the utility model;

[0023] Figure 5 For the utility model Figure 4 The enlarged schematic diagram of point B in the middle;

[0024] Figure 6 For the utility model Figure 4 Enlarged schematic diagram at point C in the middle.

[0025] In the figure: 1. light transmission tube body; 2. fixing component; 3. long shell; 4. short shell; 5. photothermal component 1; 6. photothermal component 2; 21. support rod; 22. connecting seat; 23. screw rod; 24. clamping block; 25. limiting rod; 26. limiting ring; 51. two-way screw rod 1; 52. fixing block 1; 53. photothermal conversion rod 1; 54. sliding rod 1; 55. bevel gear; 61. sliding rod 2; 62. photothermal conversion rod 2; 63. fixing block 2; 64. two-way screw rod 2; 65. rotating rod; 66. motor. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 and Figure 2 As shown, a device for preventing frost heave of roadbed comprises a long shell 3, the left front end and the right rear end of the long shell 3 are fixedly connected to short shells 4, a photothermal component 2 6 is arranged inside the long shell 3, and a photothermal component 1 5 is arranged inside the two short shells 4, a light transmission tube body 1 is threadedly connected to the middle part of the upper end of the long shell 3, the front and rear sides of the upper end of the long shell 3 are fixedly connected to the fixing component 2, and a plurality of heat conducting plates are fixedly connected inside the long shell 3 and the two short shells 4.

[0028] In the specific implementation process of this scheme, the light transmission tube body 1 is firstly passed through the fixing component 2 and threadedly connected with the long shell 3, and then the light transmission tube body 1 is fixed by using the fixing component 2 to ensure the stability of the light transmission tube body 1, and then a pit is dug at the frozen soil, and then the long shell 3 and the short shell 4 at the lower end of the light transmission tube body 1 are placed into the pit, and then the light transmission tube body 1 is started to collect light energy, and then the light energy is converted into heat energy through the photothermal component 2 6 and the photothermal component 1 5, and the long shell 3 can be started to drive the photothermal component 2 6 inside it and the photothermal component 1 5 inside the two short shells 4 to move back and forth, and then the heat is exported to the outside of the long shell 3 and the short shell 4 through the heat conduction plate, and the surrounding frozen soil is thawed, thereby increasing the thawing range of the device and improving the thawing efficiency.

[0029] Specifically, in order to ensure the stability of the light transmission tube body 1, refer to Figure 2 and Figure 3 The fixing assembly 2 includes two connecting seats 22, the upper ends of the connecting seats 22 are rotatably connected to the support rods 21, the upper parts of the two support rods 21 close to each other are fixedly connected to the clamping blocks 24, and the outer surfaces of the two clamping blocks 24 are jointly provided with a limiting ring 26, the upper right part of the limiting ring 26 is threadedly connected to the screw rod 23 that passes through the limiting ring 26 and extends to the upper end of the long shell 3, and the upper right part of the limiting ring 26 is slidably connected to the limiting rod 25 that passes through the limiting ring 26 and extends to the upper end of the long shell 3;

[0030] For further information, see Figure 3 , the two connecting seats 22 are fixedly connected to the long shell 3, the screw rod 23 is rotatably connected to the long shell 3, and the limit rod 25 is fixedly connected to the long shell 3;

[0031] It can be seen that first, the limiting ring 26 is moved away from the long shell 3, and the two supporting rods 21 are rotated to be away from the outer surface of the light transmission tube body 1, and then the light transmission tube body 1 is threadedly connected to the long shell 3 through the limiting ring 26, and then the two supporting rods 21 are rotated again, so that the two clamping blocks 24 are attached to the outer surface of the light transmission tube body 1, and then the screw 23 is rotated to rotate on the upper end of the long shell 3, driving the limiting ring 26 to move downward, so that the lower end of the limiting ring 26 continuously squeezes the part where the upper ends of the two supporting rods 21 are connected to the clamping blocks 24, until the light transmission tube body 1 is completely fixed, so as to prevent the light transmission tube body 1 from shaking during use, and the light transmission tube body 1 can be supported by a stable structure to prevent shaking during wind and rain, thereby increasing the stability of the device and ensuring the service life of the light transmission tube body 1. At the same time, when the limiting ring 26 moves downward, it slides downward on the outer surface of the limiting rod 25, so that the limiting ring 26 moves downward stably to avoid deviation and damage to the light transmission tube body 1.

[0032] Specifically, in order to improve the thawing efficiency of the device, refer to Figure 4 , Figure 5 and Figure 6 The photothermal assembly 5 includes a bidirectional screw 51, a photothermal conversion rod 53 and a slide rod 54. The outer surfaces of the bidirectional screw 51 and the slide rod 54 are both provided with a fixed block 52. The upper fixed block 52 is threadedly connected to the bidirectional screw 51, and the lower fixed block 52 is slidably connected to the slide rod 54. The ends of the two fixed blocks 52 close to each other are fixedly connected to the photothermal conversion rod 53. The end of the bidirectional screw 51 close to the long shell 3 is fixedly connected to two meshing bevel gears 55.

[0033] For further information, see Figure 4 , the two slide bars 54 are fixedly connected to the short shell 4 on the same side, the two bidirectional screws 51 are rotationally connected to the short shell 4 on the same side, and the two fixed blocks 52 located at the bottom are slidingly connected to the short shell 4 on the same side;

[0034] For further information, see Figure 4, the photothermal component 2 6 includes a motor 66, a rotating rod 65 and a sliding rod 2 61. The motor 66 is fixedly connected to a bidirectional screw 2 64 through a coupling at the output end. The rotating rod 65 is located on the upper part of the bidirectional screw 2 64. The outer surface of the bidirectional screw 2 64 and the outer surface of the sliding rod 2 61 are both provided with a fixed block 2 63. The fixed block 2 63 located at the upper part is threadedly connected to the bidirectional screw 2 64. The fixed block 2 63 located at the lower part is slidably connected to the sliding rod 2 61. The ends of the two fixed blocks 2 63 close to each other are commonly fixedly connected to the photothermal conversion rod 2 62. The bidirectional screw 2 64 and the rotating rod 65 are connected together by two pulleys and a transmission belt. The rotating rod 65 passes through the two bevel gears 55 on the same side and is fixedly connected to the two bevel gears 55.

[0035] For further information, see Figure 4 , the second slide bar 61 is fixedly connected to the long shell 3, the second bidirectional screw 64 and the rotating rod 65 are both rotatably connected to the long shell 3, and the second fixed block 63 located at the bottom is slidably connected to the long shell 3;

[0036] For further information, see Figure 4 , the outer surfaces of the long shell 3 and the two short shells 4 are all corrugated;

[0037] It can be seen that when the long shell 3 and the short shell 4 are buried, they are used to form a "cross" shape. Due to its four branches, the "cross" structure can provide better support and grip. When subjected to external force, it can evenly distribute the force and enhance the overall stability. When the light transmission tube body 1 is started, the motor 66 can be started to drive the two-way screw 64 to rotate, which can drive the upper fixed block 63 to move back and forth on the surface of the two-way screw 64. During the movement, the lower fixed block 63 slides on the outer surface of the slide rod 61, so that The lower fixed block 63 slides on the bottom wall of the inner surface of the long shell 3, so that the photothermal conversion rod 62 remains stable during the movement, and further protects the photothermal conversion rod 62. The photothermal conversion rod 62 converts solar energy into heat energy during the movement, and transmits it to the heat conduction plate inside the long shell 3 through the inner surface of the long shell 3, and conducts heat to the outside of the long shell 3 to thaw the frozen soil outside. At the same time, the reciprocating motion of the photothermal conversion rod 62 allows the long shell 3 to conduct heat evenly and quickly, increasing the thawing range and improving the thawing efficiency;

[0038] In addition, when the bidirectional screw rod 2 64 starts to rotate, the rotating rod 65 is driven to rotate together under the action of the two pulleys and the transmission belt. At this time, the two bevel gears 55 on the same side can be driven to rotate together, that is, the meshing bevel gears 55 on the same side can be driven to rotate, so that the bidirectional screw rods 1 51 on the left and right sides start to rotate, which can drive the fixed block 1 52 on the same side to move left and right, and the lower fixed block 1 52 moves back and forth left and right on the outer surface of the sliding rod 1 54 on the same side, so that the lower fixed block 1 52 slides on the bottom wall of the inner surface of the short shell 4 on the same side, so that the photothermal conversion rod 1 53 remains stable during the movement. During the movement, the photothermal conversion rod 1 53 converts solar energy into thermal energy and transfers it to the heat conduction plate inside it through the inner surface of the short shell 4 on the same side, and conducts the heat to the outside of the short shell 4 to thaw the frozen soil outside. At the same time, similarly to the above, the back and forth motion of the photothermal conversion rod 1 53 allows the short shell 4 to conduct heat evenly and quickly, increasing the thawing range while also improving the thawing efficiency.

[0039] It should be noted that the specific installation method of the motor 66, the circuit connection method and the control method used in the present invention are all conventional designs, and the present invention will not elaborate on them in detail.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for preventing roadbed frost heave, comprising a long shell (3), characterized in that: The left front side and the right rear side of the long shell (3) are both fixedly connected to the short shell (4); a second photothermal component (6) is arranged inside the long shell (3); and a first photothermal component (5) is arranged inside the two short shells (4); a light transmission tube body (1) is threadedly connected to the middle of the upper end of the long shell (3); the front side and the rear side of the upper end of the long shell (3) are jointly fixedly connected to the fixing component (2); and a plurality of heat conduction plates are fixedly connected inside the long shell (3) and inside the two short shells (4).

2. A device for preventing roadbed frost heave according to claim 1, characterized in that: The fixing assembly (2) comprises two connecting seats (22), the upper ends of the connecting seats (22) are rotatably connected to support rods (21), the upper parts of the ends of the two support rods (21) close to each other are fixedly connected to clamping blocks (24), the outer surfaces of the two clamping blocks (24) are jointly provided with a limiting ring (26), the upper right part of the limiting ring (26) is threadedly connected to a screw rod (23) that passes through the limiting ring (26) and extends to the upper end of the long shell (3), and the upper right part of the limiting ring (26) is slidably connected to a limiting rod (25) that passes through the limiting ring (26) and extends to the upper end of the long shell (3).

3. A device for preventing roadbed frost heave according to claim 2, characterized in that: The two connecting seats (22) are both fixedly connected to the long shell (3), the screw rod (23) is rotationally connected to the long shell (3), and the limiting rod (25) is fixedly connected to the long shell (3).

4. The device for preventing roadbed frost heave according to claim 1, characterized in that: The photothermal component (5) comprises a bidirectional screw (51), a photothermal conversion rod (53) and a sliding rod (54). The outer surfaces of the bidirectional screw (51) and the sliding rod (54) are both provided with a fixing block (52). The fixing block (52) located at the upper part is threadedly connected to the bidirectional screw (51), and the fixing block (52) located at the lower part is slidably connected to the sliding rod (54). The ends of the two fixing blocks (52) close to each other are fixedly connected to the photothermal conversion rod (53). The end of the bidirectional screw (51) close to the long shell (3) is fixedly connected to two meshing bevel gears (55).

5. The device for preventing roadbed frost heave according to claim 4, characterized in that: The two sliding rods (54) are fixedly connected to the short shell (4) on the same side, the two bidirectional screws (51) are rotationally connected to the short shell (4) on the same side, and the two fixed blocks (52) located at the bottom are slidingly connected to the short shell (4) on the same side.

6. The device for preventing roadbed frost heave according to claim 1, characterized in that: The photothermal component 2 (6) comprises a motor (66), a rotating rod (65) and a sliding rod 2 (61). The motor (66) is fixedly connected to a bidirectional screw rod 2 (64) via a coupling at the output end. The rotating rod (65) is located at the upper part of the bidirectional screw rod 2 (64). The outer surface of the bidirectional screw rod 2 (64) and the outer surface of the sliding rod 2 (61) are both provided with a fixing block 2 (63). The fixing block 2 (63) located at the upper part is threadedly connected to the bidirectional screw rod 2 (64). The fixing block 2 (63) located at the lower part is slidably connected to the sliding rod 2 (61). The ends of the two fixing blocks 2 (63) close to each other are fixedly connected to a photothermal conversion rod 2 (62). The bidirectional screw rod 2 (64) and the rotating rod (65) are connected together via two pulleys and a transmission belt. The rotating rod (65) passes through two bevel gears (55) on the same side and is fixedly connected to both bevel gears (55).

7. A device for preventing roadbed frost heave according to claim 6, characterized in that: The second sliding rod (61) is fixedly connected to the long shell (3), the second bidirectional screw rod (64) and the rotating rod (65) are both rotatably connected to the long shell (3), and the second fixed block (63) located at the bottom is slidably connected to the long shell (3).

8. The device for preventing roadbed frost heave according to claim 1, characterized in that: The outer surfaces of the long shell (3) and the two short shells (4) are both corrugated.

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