A frozen soil area pipeline anti-frost-pulling support frame and a regulating method thereof

Abstract

The application discloses a frozen soil area pipeline anti-freezing and anti-pulling support frame and a regulating method thereof. The frozen soil area pipeline anti-freezing and anti-pulling support frame comprises a bottom plate, a threaded rod installed on the bottom plate, an adjusting nut sleeved on the threaded rod and a pipeline fixing assembly adjustably installed at the top end of the threaded rod through a piston structure. The adjusting nut is fixed in the height direction; when the adjusting nut rotates, the threaded rod rises or falls. A ratchet wheel is fixedly installed on the outer wall of the adjusting nut; the ratchet wheel rotates under the drive of a clamping assembly, thereby driving the adjusting nut to rotate, and further adjusting the height of the threaded rod; the clamping assembly and the piston structure are driven through a transmission assembly. The above-mentioned frozen soil area pipeline anti-freezing and anti-pulling support frame can artificially manually adjust the height of the pipeline fixing assembly through the adjusting nut, and can also automatically adjust the height of the pipeline fixing assembly through the piston structure. The uneven force on the pipeline caused by untimely manual operation is avoided, and the pipeline is prevented from being damaged.

Description

Technical Field

[0001] This invention relates to the field of pipeline support technology, and in particular to a pipeline antifreeze support frame and its adjustment method in frozen soil areas. Background Technology

[0002] Permafrost is mainly distributed in high-latitude and high-altitude areas. In my country, permafrost is mainly distributed in the Qinghai-Tibet Plateau, Pamir Plateau, Qilian Mountains, Tianshan Mountains and other western high mountains, as well as the Greater Khingan Mountains, Changbai Mountains and some mountainous areas of Inner Mongolia in the northeast. Permafrost refers to water-containing loose rock or soil that transforms into a crystalline state or cements loose solid particles at or below zero degrees Celsius. In recent years, there have been many long-distance pipeline construction projects in my country. The pipelines traverse different regions and sections, requiring us to summarize and exchange experiences on construction in various different sections during the construction process.

[0003] Support frames can be used to support crude oil pipelines installed in permafrost regions, preventing the impact of permafrost thawing and subsidence on the stable operation of the pipeline. One existing oil pipeline support includes a base plate, a support plate, a threaded rod, a nut, a fixing block, and a pipeline fixing plate. Rotating the nut on the support plate adjusts the threaded rod, which in turn pushes an upper sleeve and a locking block, thereby adjusting the pipeline's vertical height. When the permafrost freezes, the volume of the soil increases, creating an upward force on the support frame. This force is then transferred to the pipeline, pushing it upwards. Rotating the nut to adjust the height of the threaded rod can counteract this upward force, preventing pipeline damage. However, the rotation of the support frame nut requires manual operation; the pipeline cannot automatically adjust its height. This can lead to the support frame not being adjusted in time, causing uneven stress on the pipeline, resulting in pipeline damage and potential crude oil leaks that severely pollute the surrounding environment. Summary of the Invention

[0004] The purpose of this invention is to address the technical deficiencies in the existing technology by providing a frost-resistant support frame for pipelines in frozen soil areas.

[0005] Another objective of this invention is to provide an adjustment method for the aforementioned antifreeze support frame for pipelines in frozen soil areas.

[0006] The technical solution adopted to achieve the purpose of this invention is:

[0007] A pipe antifreeze support frame for frozen soil areas includes a base plate, a threaded rod mounted on the base plate, an adjusting nut fitted on the threaded rod, and a pipe fixing assembly adjustablely mounted on the top of the threaded rod via a piston structure.

[0008] The adjusting nut is fixed in the height direction; when the adjusting nut is rotated, the threaded rod rises or falls.

[0009] The piston structure includes a large piston cylinder, a piston block, a small piston cylinder, a piston plate, a piston rod, and a first spring. The large piston cylinder is fixedly installed at the top of the threaded rod. The upper end of the piston block is connected to the pipe fixing assembly, and the lower end extends into the large piston cylinder and is slidably and sealingly connected to its inner wall. The small piston cylinder is fixedly disposed on the side wall of the large piston cylinder and communicates with it. The piston plate is installed inside the small piston cylinder, and its outer edge is in close contact with the inner wall of the small piston cylinder. One end of the piston rod extends into the small piston cylinder and is fixedly connected to the piston plate, and the other end extends out of the small piston cylinder. The first spring is fitted on the piston rod and is located between the end wall of the small piston cylinder and the piston plate.

[0010] In the above technical solution, the pipe fixing assembly includes a fixing block fixedly installed above the piston block, a support block fixedly installed above the fixing block, a first pipe fixing plate fixedly installed on the support block, and a second pipe fixing plate with the same shape as the first pipe fixing plate; the first pipe fixing plate and the second pipe fixing plate are both semi-circular, and the two are combined to form a circle.

[0011] In the above technical solution, the ends of the first pipe fixing plate and the second pipe fixing plate extend outward to form threaded fixing plates; adjacent threaded fixing plates are fixedly connected by screws.

[0012] In the above technical solution, a ratchet is fixedly installed on the outer wall of the adjusting nut; the ratchet rotates under the drive of the clamping assembly, thereby driving the adjusting nut to rotate, and thus adjusting the height of the threaded rod; the clamping assembly is mounted on the support fixing cylinder through a sliding base, so that it is fixed in the height direction and can slide in the horizontal direction; the clamping assembly and the piston structure are transmitted through a transmission assembly; when the piston structure is compressed, the transmission assembly drives the clamping assembly to move horizontally closer to the ratchet, driving the ratchet to rotate, thereby adjusting the height of the threaded rod.

[0013] In the above technical solution, the clamping assembly includes a pointed pawl, a hooked pawl, and a pawl mounting block; the ends of the pointed pawl and the hooked pawl are respectively rotatably connected to the pawl mounting block; the tip of the pointed pawl and the hook of the hooked pawl are respectively engaged in the ratchet grooves on both sides of the ratchet wheel; when the pawl mounting block approaches the ratchet wheel, the pointed pawl pushes the ratchet wheel to rotate; when the pawl mounting block moves away from the ratchet wheel, the hooked pawl pulls the ratchet wheel to rotate in the opposite direction.

[0014] In the above technical solution, the clamping assembly further includes a tensioning assembly; the tensioning assembly includes two spring fixing plates respectively mounted on the pointed pawl and the hooked pawl, and a second spring with both ends respectively fixed on the spring fixing plates.

[0015] In the above technical solution, the pawl mounting block is slidably mounted on the sliding base; support rods are fixedly mounted on both ends of the sliding base; and the support rods are fixedly mounted on the support fixing cylinder.

[0016] In the above technical solution, the transmission assembly includes a square connecting rod, a large rotating cylinder, and a small rotating cylinder; the upper end of the square connecting rod is rotatably connected to the piston rod; the middle part of the square connecting rod is fixed; the lower end of the square connecting rod is rotatably connected to the large rotating cylinder; the small rotating cylinder is rotatably connected to the pawl mounting block; the large rotating cylinder and the small rotating cylinder are connected by a rotating cylinder connecting rod.

[0017] In the above technical solution, a support block is fixedly installed on the base plate; the support block is located directly below the threaded rod; and an alarm button is installed on the support block.

[0018] In another aspect of the present invention, the adjustment method of the above-mentioned anti-freezing support frame for pipelines in frozen soil areas involves the pipeline pressing the piston block into the interior of the large piston cylinder during pipeline installation. The air inside the large piston cylinder is compressed, and the air pressure increases, which pushes the piston plate into the interior of the small piston cylinder. The piston plate drives the piston rod to move together, and during the movement, it compresses the first spring to generate elastic potential energy.

[0019] After the pipeline is installed, the air pressure inside the large piston cylinder and the small piston cylinder is just enough to balance the downward force of the pipeline and support it.

[0020] When the soil freezes, it expands and exerts an upward frost heave force on the support frame. The support frame then transmits this frost heave force to the pipe, disrupting the air pressure balance inside the large and small piston cylinders. The frost heave force from the ground on the piston block continues to compress and squeeze the air on the inner wall and the first spring, thereby counteracting the frost heave force on the pipe.

[0021] In the above technical solution, when the soil freezes, the piston rod is pushed outward; the piston rod pushes the top of the square connecting rod outward, while the bottom moves inward; the bottom of the square connecting rod sequentially pushes the large rotating cylinder, the rotating cylinder connecting rod, the small rotating cylinder, and the semi-circular baffle to move inward; the pawl mounting block approaches the ratchet, and the pointed pawl pushes the ratchet to rotate, reducing the height of the threaded rod.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The anti-freezing support frame for pipelines in frozen soil areas provided by this invention allows for both manual adjustment of the height of the pipeline fixing components via adjusting nuts and automatic adjustment via a piston structure. This avoids damage to the pipeline due to uneven stress caused by untimely manual operation, prevents pollution of the surrounding environment from crude oil leaks inside the pipeline, and improves the safety of the pipeline.

[0024] 2. The pipe antifreeze pull-out support frame for frozen soil areas provided by the present invention, through the set pipe fixing structure, allows the pipe body to be placed inside the pipe fixing plate first when adjusting the height of the support frame, and then another pipe fixing plate to be placed on the pipe body. The threaded fixing plates on the two pipe fixing plates are then attached together, and the threaded fixing plates at the attachment point are connected together with screws to fix the pipe body to the support frame. This avoids the problem of the pipe body falling directly off the support frame due to uneven force during the height adjustment process, and enhances the stability of the connection between the pipe body and the support frame.

[0025] 3. The anti-freezing support frame for pipelines in frozen soil areas provided by this invention will trigger the alarm button on the support block when the threaded rod is adjusted to the maximum limit, and issue an alarm to promptly remind the staff to adjust it. This avoids the problem of soil freezing and pulling in frozen soil areas that cannot be solved even when the support frame is adjusted to the maximum limit under extreme weather conditions, thus enhancing the practicality and service life of the support frame. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure of the anti-freezing support frame for pipelines in permafrost regions;

[0027] Figure 2 A schematic cross-sectional view of the overall structure of the pipeline antifreeze pull-out support frame in frozen soil areas;

[0028] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 4 for Figure 2 Enlarged view at point C

[0030] Figure 5 for Figure 2 Enlarged view at point B in the middle;

[0031] Figure 6 This is a schematic diagram of the transmission assembly structure;

[0032] Figure 7 This is a schematic diagram of the transmission assembly structure;

[0033] Figure 8 This is a schematic diagram of the clamping component structure.

[0034] In the diagram: 1-Threaded rod, 2-Support plate, 3-Base plate, 4-Pipe fixing plate, 5-Threaded fixing plate, 6-Screw, 7-Support rod, 8-Fixing block, 9-Piston block, 10-Large piston cylinder, 11-Small piston cylinder, 12-Piston rod, 13-Square connecting rod, 14-Ratchet, 15-Support fixing cylinder, 16-Support block, 17-Piston plate, 18-First spring, 19-Piston connecting rod, 20-Alarm button, 21-Nut, 22-Pointed pawl, 23-Hook-shaped pawl, 24-Spring fixing plate, 25-Second spring, 26-Threaded connecting rod, 27-Pawl connecting rod, 28-Pawl mounting block, 29-Fixing rod, 30-Small rotating cylinder, 31-Sliding base, 32-Large rotating cylinder, 33-Rotating cylinder connecting rod, 34-Semi-circular baffle, 35-Support block. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0036] Example 1

[0037] A type of anti-freezing support frame for pipelines in frozen soil areas, such as Figure 1 , Figure 2 As shown, the assembly includes a base plate 3, a threaded rod 1 mounted on the base plate 3 via a support plate 2, an adjusting nut 21 fitted onto the threaded rod 1, and a pipe fixing assembly adjustablely mounted on the top of the threaded rod 1 via a piston structure. The inner wall of the support plate 2 is threadedly rotatably connected to the outer wall of the threaded rod 1, allowing the threaded rod 1 to be stably supported and its height adjustable by rotation. The adjusting nut 21 is located above the support plate 2 and is fixed in the height direction. When the adjusting nut 21 rotates, the threaded rod 1 rises or falls.

[0038] The piston structure is as follows Figure 1 , Figure 2 and Figure 5 As shown, the assembly includes a large piston cylinder 10, a piston block 9, a small piston cylinder 11, a piston plate 17, a piston rod 12, and a first spring 18. The large piston cylinder 10 is fixedly installed at the top of the threaded rod 1. The upper end of the piston block 9 is connected to the pipe fixing assembly, and the lower end extends into the large piston cylinder 10 and is slidably connected to its inner wall. The small piston cylinder 11 is fixedly disposed on the side wall of the large piston cylinder 10 and communicates with it. The piston plate 17 is installed inside the small piston cylinder 11, and its outer edge is in close contact with the inner wall of the small piston cylinder 11. One end of the piston rod 12 extends into the small piston cylinder 11 and is fixedly connected to the piston plate 17, and the other end extends out of the small piston cylinder 11. The first spring 18 is fitted on the piston rod 12 and is located between the end wall of the small piston cylinder 11 and the piston plate 17.

[0039] The pipe fixing assembly, such as Figure 3 As shown, the system includes a fixing block 8 fixedly installed above the piston block 9, a support block 35 fixedly installed above the fixing block 8, a first pipe fixing plate 4-1 fixedly installed on the support block 35, and a second pipe fixing plate 4-2 with the same shape as the first pipe fixing plate 4-1; both the first pipe fixing plate 4-1 and the second pipe fixing plate 4-2 are semi-circular, and the two together form a circle. The ends of the first pipe fixing plate 4-1 and the second pipe 4-2 extend outward to form threaded fixing plates 5; adjacent threaded fixing plates 5 are fixedly connected by screws 6.

[0040] In this embodiment, the pipeline is installed on a pipeline fixing assembly. The height of the pipeline fixing assembly can be manually adjusted using the adjusting nut 21, or automatically adjusted using the piston structure. This avoids damage to the pipeline due to uneven stress caused by untimely manual operation, prevents crude oil leakage from the pipeline from polluting the surrounding environment, and improves the safety of the pipeline.

[0041] During pipe installation, the pipe compresses piston block 9 into the large piston cylinder 10. The air inside the large piston cylinder 10 is compressed, increasing air pressure and pushing piston plate 17 into the small piston cylinder 11. Piston plate 17 moves piston rod 12 along with it, compressing the first spring 18 and generating elastic potential energy. After pipe installation, the air pressure inside the large piston cylinder 10 and small piston cylinder 11 balances the downward force on the pipe, supporting it. When the soil freezes, it expands, generating an upward frost heave force on the support frame. The support frame then transfers this frost heave force to the pipe, disrupting the air pressure balance inside the large piston cylinder 10 and small piston cylinder 11. The frost heave force on piston block 9 continues to compress the inner wall air and the first spring 18, thus counteracting the frost heave force on the pipe.

[0042] Example 2

[0043] like Figure 1 , Figure 2 and Figure 8 As shown, a ratchet 14 is fixedly installed on the outer wall of the adjusting nut 21; the ratchet 14 rotates under the drive of the clamping assembly, thereby driving the adjusting nut 21 to rotate, and thus adjusting the height of the threaded rod 1;

[0044] The clamping assembly is mounted on the support fixing cylinder 15 via a sliding base 31, so that it is fixed in the height direction and can slide in the horizontal direction.

[0045] The clamping assembly and the piston structure are connected by a transmission assembly; when the piston structure is compressed, the transmission assembly drives the clamping assembly to move horizontally closer to the ratchet 14, driving the ratchet 14 to rotate, thereby adjusting the height of the threaded rod 1; this avoids the problem that the piston structure cannot move to offset the pressure after being squeezed to the maximum force point, enhances the pressure resistance of the support frame, and protects the safety of the pipeline.

[0046] The clamping assembly, as shown Figure 8 As shown, the ratchet includes a pointed pawl 22, a hooked pawl 23, and a pawl mounting block 28. The ends of the pointed pawl 22 and the hooked pawl 23 are rotatably connected to the pawl mounting block 28 via pawl connecting rods 27. The tips of the pointed pawl 22 and the hooks of the hooked pawl 23 are engaged in the ratchet grooves on both sides of the ratchet wheel 14. When the pawl mounting block 28 approaches the ratchet wheel 14, the pointed pawl 22 pushes the ratchet wheel 14 to rotate. When the pawl mounting block 28 moves away from the ratchet wheel 14, the hooked pawl 23 pulls the ratchet wheel 14 to rotate in the opposite direction.

[0047] The clamping assembly further includes a tensioning assembly; the tensioning assembly includes two spring fixing plates 24 respectively mounted on the pointed pawl 22 and the hooked pawl 23 via threaded connecting rods 26, and a second spring 25 with both ends fixed on the spring fixing plates 24 respectively. When the clamping assembly is in operation, that is, when the pointed pawl 22 and the hooked pawl 23 are pushed, they will move along the outer contour of the ratchet 14, pulling the second spring 25 to generate elastic potential energy; when the pointed pawl 22 and the hooked pawl 23 are pulled back, they will move back along the outer contour of the ratchet 14, and the elastic potential energy generated by the second spring 25 will contract, preventing the pointed pawl 22 and the hooked pawl 23 from deviating from the outer contour of the ratchet 14. This avoids the problem that the pointed pawl 22 and the hooked pawl 23 will deviate from the outer contour of the ratchet 14 due to uneven force during movement, or that the ratchet 14 cannot be driven to rotate due to weak engagement, thus increasing the robustness of the clamping mechanism and the stability of the ratchet 14 when it is rotated.

[0048] like Figure 6 As shown, the clamping assembly is mounted on the support fixing cylinder 15 via a sliding base 31, which fixes it in the height direction and allows it to slide in the horizontal direction. Specifically, the pawl mounting block 28 is slidably mounted on the sliding base 31. Support rods 7 are fixedly mounted on both ends of the sliding base 31. The support rods 7 are fixedly mounted on the support fixing cylinder 15.

[0049] The clamping assembly and the piston structure are connected by a transmission assembly; the transmission assembly is as follows: Figure 6 Figure 7As shown, the device includes a square connecting rod 13, a large rotating cylinder 32, and a small rotating cylinder 30. The upper end of the square connecting rod 13 is rotatably connected to the piston rod 12 via a piston connecting rod 19. The middle (or lower middle or upper middle) of the square connecting rod 13 is fixed to the support fixing cylinder 15 via a fixing rod 29. A groove is provided at the lower end of the square connecting rod 13. The large rotating cylinder 32 is rotatably installed in the groove at the lower end of the square connecting rod 13. Two semi-circular baffles 34 are fixedly installed on the pawl mounting block 28. The two ends of the small rotating cylinder 30 are rotatably connected to the semi-circular baffles 34 respectively. The large rotating cylinder 32 and the small rotating cylinder 30 are connected by a rotating cylinder connecting rod 33.

[0050] First, when the piston rod 12 is pushed, it pushes the top of the square connecting rod 13. Since the middle of the square connecting rod 13 is fixed, when the top of the square connecting rod 13 is pushed, the bottom of the square connecting rod 13 will move in the opposite direction. When the bottom of the square connecting rod 13 moves, it pushes the large rotating cylinder 32 to move together. The large rotating cylinder 32 pushes the rotating cylinder connecting rod 33 to move together. The rotating cylinder connecting rod 33 drives the small rotating cylinder 30 to move together. The small rotating cylinder 30 then pushes the semi-circular baffle 34 to move together. When the piston rod 12 is pulled back, the square connecting rod 13 will also move back along the fixed structure. The bottom of the square connecting rod 13 pulls the large rotating cylinder 32 to move together. The large rotating cylinder 32 pulls the rotating cylinder connecting rod 33 to move together. The rotating cylinder connecting rod 33 pulls the small rotating cylinder 30 to move together. The small rotating cylinder 30 then pulls the semi-circular baffle 34 to move together. This avoids the problem of the piston structure not being able to connect with the clamping assembly when it moves, and adds linkage to the support frame.

[0051] When the connecting component moves, the semi-circular baffle 34 first pushes the pawl mounting block 28 to move, and the pawl mounting block 28 slides along the sliding base 31. When the semi-circular baffle 34 is pulled back, it drives the pawl mounting block 28 to slide again. This avoids the problem of uneven force on the connecting component during movement, which causes positional deviation during movement, and enhances the stability of the connecting component during movement.

[0052] Example 3

[0053] like Figure 4 As shown, a support block 16 is fixedly installed on the base plate 3; the support block 16 is located directly below the threaded rod 1; an alarm button 20 is installed on the support block 16.

[0054] When the threaded rod 1 is adjusted to its maximum limit, the alarm button 20 on the support block 16 will be triggered, and an alarm will be issued to promptly remind the staff to make adjustments. This avoids the situation where, even when the support frame is adjusted to its maximum limit, the problem of soil freezing and pulling in frozen soil areas still cannot be solved, thus enhancing the practicality and service life of the support device.

[0055] The above description is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A pipe antifreeze support frame for frozen soil areas, characterized in that: It includes a base plate, a threaded rod mounted on the base plate, an adjusting nut fitted on the threaded rod, and a pipe fixing assembly adjustablely mounted on the top of the threaded rod via a piston structure; The adjusting nut is fixed in the height direction; when the adjusting nut is rotated, the threaded rod rises or falls. The piston structure includes a large piston cylinder, a piston block, a small piston cylinder, a piston plate, a piston rod, and a first spring. The large piston cylinder is fixedly installed at the top of the threaded rod. The upper end of the piston block is connected to the pipe fixing assembly, and the lower end extends into the large piston cylinder and is slidably sealed to its inner wall. The small piston cylinder is fixedly disposed on the side wall of the large piston cylinder and communicates with it. The piston plate is installed inside the small piston cylinder, and its outer edge is in close contact with the inner wall of the small piston cylinder. One end of the piston rod extends into the small piston cylinder and is fixedly connected to the piston plate, and the other end extends out of the small piston cylinder. The first spring is fitted on the piston rod and is located between the end wall of the small piston cylinder and the piston plate. A ratchet is fixedly mounted on the outer wall of the adjusting nut; the ratchet rotates under the drive of the clamping assembly, thereby driving the adjusting nut to rotate and adjusting the height of the threaded rod; the clamping assembly is mounted on the support fixing cylinder via a sliding base, making it fixed in the height direction and slidable in the horizontal direction; the clamping assembly and the piston structure are transmitted through a transmission assembly; when the piston structure is compressed, the transmission assembly drives the clamping assembly to move horizontally closer to the ratchet, driving the ratchet to rotate and thus adjusting the height of the threaded rod; The clamping assembly includes a pointed pawl, a hooked pawl, and a pawl mounting block; the ends of the pointed pawl and the hooked pawl are respectively rotatably connected to the pawl mounting block; the tip of the pointed pawl and the hook of the hooked pawl are respectively engaged in the ratchet grooves on both sides of the ratchet wheel; when the pawl mounting block approaches the ratchet wheel, the pointed pawl pushes the ratchet wheel to rotate; when the pawl mounting block moves away from the ratchet wheel, the hooked pawl pulls the ratchet wheel to rotate in the opposite direction.

2. The anti-freezing support frame for pipelines in frozen soil areas as described in claim 1, characterized in that: The pipe fixing assembly includes a fixing block fixedly installed above the piston block, a support block fixedly installed above the fixing block, a first pipe fixing plate fixedly installed on the support block, and a second pipe fixing plate with the same shape as the first pipe fixing plate; the first pipe fixing plate and the second pipe fixing plate are both semi-circular, and the two are combined to form a circle; The ends of the first pipe fixing plate and the second pipe fixing plate extend outward to form threaded fixing plates; adjacent threaded fixing plates are fixedly connected by screws.

3. The anti-freezing support frame for pipelines in frozen soil areas as described in claim 1, characterized in that: The clamping assembly further includes a tensioning assembly; the tensioning assembly includes two spring fixing plates respectively mounted on the pointed pawl and the hooked pawl, and a second spring with both ends respectively fixed to the spring fixing plates.

4. The anti-freezing support frame for pipelines in frozen soil areas as described in claim 1, characterized in that: The pawl mounting block is slidably mounted on the sliding base; support rods are fixedly mounted at both ends of the sliding base; the support rods are fixedly mounted on the support fixing cylinder.

5. The anti-freezing support frame for pipelines in frozen soil areas as described in claim 1, characterized in that: The transmission assembly includes a square connecting rod, a large rotating cylinder, and a small rotating cylinder; the upper end of the square connecting rod is rotatably connected to the piston rod; the middle part of the square connecting rod is fixed; the lower end of the square connecting rod is rotatably connected to the large rotating cylinder; the small rotating cylinder is rotatably connected to the pawl mounting block; the large rotating cylinder and the small rotating cylinder are connected by a rotating cylinder connecting rod.

6. The anti-freezing support frame for pipelines in frozen soil areas as described in claim 1, characterized in that: A support block is fixedly installed on the base plate; the support block is located directly below the threaded rod; an alarm button is installed on the support block.

7. The adjustment method for the anti-freezing support frame for pipelines in frozen soil areas as described in claim 5, characterized in that: During pipe installation, the pipe will squeeze the piston block into the large piston cylinder. The air inside the large piston cylinder is compressed, and the air pressure increases, which pushes the piston plate into the small piston cylinder. The piston plate drives the piston rod to move together. During the movement, the first spring is compressed and generates elastic potential energy. After the pipeline is installed, the air pressure inside the large piston cylinder and the small piston cylinder is just enough to balance the downward force of the pipeline and support it. When the soil freezes, it expands and exerts an upward frost heave force on the support frame. The support frame then transmits this frost heave force to the pipe, disrupting the air pressure balance inside the large and small piston cylinders. The frost heave force from the ground on the piston block continues to compress and squeeze the air on the inner wall and the first spring, thereby counteracting the frost heave force on the pipe.

8. The adjustment method as described in claim 7, characterized in that, When the soil freezes, the piston rod is pushed outward; the piston rod pushes the top of the square connecting rod outward, while the bottom moves inward; the bottom of the square connecting rod sequentially pushes the large rotating cylinder, the rotating cylinder connecting rod, the small rotating cylinder, and the semi-circular baffle inward; the pawl mounting block approaches the ratchet, and the pointed pawl pushes the ratchet to rotate, reducing the height of the threaded rod; two semi-circular baffles are fixedly mounted on the pawl mounting block; the two ends of the small rotating cylinder are rotatably connected to the semi-circular baffles respectively.

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