Adjusting type buried pipeline sedimentation buffering device

Abstract

The utility model provides an adjusting type buried pipeline sedimentation buffering device which comprises a base, an adjusting assembly, a buffering assembly and a pipeline fixing piece. The base is fixed to a foundation through foundation bolts and provides stable support, and guide columns are arranged at the four corners of the base. An adjusting screw rod of the adjusting assembly is rotatably connected with the base, and is matched with an adjusting nut and an adjusting plate with a guide hole, so that the height can be flexibly adjusted to adapt to different sedimentation conditions. A plurality of springs and buffer plates distributed in a matrix mode of the buffer assembly can effectively buffer settlement stress, impact force is converted into elastic potential energy, and the situation that local stress of the pipeline is too large is avoided. And the pipeline fixing piece tightly holds the buried pipeline by using a hoop and a bolt. The device is stable in structure and convenient to install and maintain, the pipeline maintenance and replacement cost can be reduced, normal operation of the pipeline is guaranteed, resource waste and production interruption are reduced, the safety and economical efficiency of the buried pipeline to deal with settlement are improved, and the device is suitable for pipeline settlement protection under various complex geological conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of buried pipeline engineering, and concretely relates to a regulating buried pipeline settlement buffer device. BACKGROUND

[0002] Buried pipelines play a vital role in many fields such as urban construction, industrial production and energy transportation. For example, urban water supply and drainage systems and long-distance transportation of oil and natural gas all rely on buried pipelines. However, due to the complexity of geological conditions, changes in underground water level, and the influence of surrounding construction activities, the foundation where the buried pipeline is located often experiences settlement, which poses a serious challenge to the safe operation of the pipeline.

[0003] The existing buried pipeline settlement device has the following deficiencies: the existing settlement buffer device uses a simple elastic pad as a buffer component. Although this elastic pad can alleviate the impact force caused by settlement to some extent, its structure is relatively simple and its buffering capacity is limited. The elastic pad is usually a monolithic structure and cannot evenly distribute the pressure caused by settlement. In actual use, when the foundation settles, the pipeline may be subjected to a large local pressure, which can cause local deformation of the pipeline. Moreover, the elastic properties of the elastic pad will gradually weaken after long-term use, and the buffering effect will decrease significantly, making it impossible to continuously and effectively protect the pipeline.

[0004] The buffer component of the traditional buffer device is prone to fatigue damage after experiencing multiple settlement impacts. For example, some rubber buffer pads may develop cracks and age during repeated compression and stretching, resulting in a loss of their elastic properties and an inability to effectively buffer settlement stress. This makes it impossible to protect the pipeline during subsequent settlement, increasing the risk of pipeline damage.

[0005] Many existing settlement buffer devices are fixed structures and lack flexible adjustment functions. When the amount of foundation settlement is small, these devices may still be able to provide some buffering, but when the amount of settlement is large, they cannot adjust their height according to the actual settlement conditions, and the pipeline will be subjected to excessive stress, which can cause pipeline rupture and severe interface loosening. Moreover, the geological conditions vary greatly in different regions, and the pipeline may experience different degrees and types of settlement. Fixed-structure buffer devices cannot adapt to such complex and variable working conditions, and their application range is greatly limited.

[0006] Few devices with adjustment function, the adjustment mode is often more complex, need professional equipment and technical personnel to operate. This not only increases the difficulty and cost of adjustment, but also leads to a long adjustment time, unable to respond to sudden settlement. In addition, the adjustment accuracy of some adjustment devices is low, and it is difficult to accurately compensate for the settlement amount of the pipeline, so that the pipeline is still in an unsafe stress state.

[0007] The structure of part of the existing buffer device is not reasonable, and it lacks a stable support foundation. When subjected to settlement impact force, the device is easy to sway, tilt or even collapse, which not only cannot effectively protect the pipeline, but also may cause damage to the surrounding environment and other facilities. For example, some simple buffer devices are not firmly connected with the foundation during installation, and when the foundation vibrates slightly, the device will displace, affecting its buffering effect.

[0008] Some existing settlement buffer devices have complex structures, and the connection between various components is not standardized, resulting in a tedious installation process that requires a lot of time and manpower. In terms of maintenance, due to the strong correlation between components, when a component is damaged, the entire device often needs to be dismantled and rebuilt on a large scale, which not only increases maintenance costs, but also affects the normal operation of the pipeline. Moreover, the replacement of some device components is difficult, and it is difficult to find suitable replacement parts, further increasing the difficulty and cost of maintenance.

[0009] Due to the limited buffering effect and adjustment capacity of existing buffer devices, pipelines are more susceptible to damage from settlement, requiring frequent repairs and replacements. This not only consumes a large amount of pipeline repair materials, but also requires high labor costs. For long-distance buried pipeline systems, these repair and replacement costs can be a huge expense, increasing operating costs.

[0010] Frequent damage to pipelines can lead to leakage of transported media and interruption of production, causing resource waste and economic loss. For pipelines transporting oil, natural gas and other important energy sources, once a leak occurs, not only will it cause energy waste, but also may cause safety accidents and serious social impact. For urban water supply and drainage pipelines, pipeline damage can cause water stoppage and sewage overflow, affecting the normal life of residents and the environmental health of the city. Therefore, we improve it and propose a regulating type buried pipeline settlement buffer device. Content of the utility model

[0011] The utility model discloses a purpose at: for the problem of the background technology of present existence. In order to realize above -mentioned practical new type purpose, the utility model provides the following technical scheme: a kind of adjusting formula buried pipeline settlement buffer device, including base, adjusting assembly, buffer assembly and pipeline fixing piece;The base is used to provide support base for entire device, the adjusting assembly is installed on base and can be adjusted height, the buffer assembly is set on adjusting assembly, the pipeline fixing piece is installed on buffer assembly and is used to fix buried pipeline.

[0012] As the preferred technical scheme of the utility model, the base is a rectangular frame structure, a plurality of anchor bolts are provided at the bottom of the base, and a vertical upward guide column is provided at each of the four corners of the base.

[0013] As the preferred technical scheme of the utility model, the adjusting assembly includes an adjusting screw, an adjusting nut and an adjusting plate. The lower end of the adjusting screw is rotatably connected to the center position of the base through a bearing, and the upper end of the adjusting screw passes through the adjusting plate and is threadedly connected with the adjusting nut. A guide hole adapted to the guide column is formed at each of the four corners of the adjusting plate, and the guide column passes through the guide hole. The adjusting plate can slide up and down along the guide column.

[0014] As the preferred technical scheme of the utility model, the buffer assembly includes a plurality of springs and a buffer plate. One end of the spring is fixed to the upper surface of the adjusting plate, and the other end is fixedly connected to the lower surface of the buffer plate. The springs are arranged in a matrix.

[0015] As the preferred technical scheme of the utility model, the pipeline fixing piece includes two semicircular hoops. The two hoops are connected by bolts to form a complete ring. The bottom of the pipeline fixing piece is fixedly connected to the upper surface of the buffer plate. The ring is used to tightly hold the buried pipeline.

[0016] As the preferred technical scheme of the utility model, a limit block is provided at the top end of the guide column to prevent the adjusting plate from being detached from the guide column.

[0017] As the preferred technical scheme of the utility model, anti-skid lines are provided on the outer side of the adjusting nut to facilitate the rotation of the adjusting nut by the operator to adjust the height of the adjusting plate.

[0018] As the preferred technical scheme of the utility model, the spring is a cylindrical helical spring, and the material of the spring is high-strength alloy steel to ensure that the spring has good elasticity and durability.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] The buffer assembly of the device adopts a matrix distribution structure of multiple springs. When the buried pipeline sinks due to foundation settlement, the buffer plate is subjected to pressure transmitted by the pipeline and compresses the springs below. The springs have good elasticity and can convert the impact force generated by the settlement into elastic potential energy during compression. This process of elastic deformation effectively disperses and absorbs the energy brought by the settlement, greatly reducing the stress transmitted to the buried pipeline. Compared with the traditional simple buffering method, the matrix-distributed springs can more evenly bear and disperse pressure, avoiding excessive local stress on the pipeline, thereby reducing the risk of deformation, rupture and damage of the pipeline due to stress concentration, and ensuring the structural integrity and operational safety of the pipeline.

[0021] The springs are usually made of high-strength alloy steel, which has good elasticity and durability. Even after experiencing multiple settlement impacts over a long period of use, the springs can still maintain stable elastic properties and continue to effectively perform the buffering function. This allows the device to provide reliable protection for the buried pipeline over a longer period of time, reducing the need for frequent replacement of buffer components due to declining buffering performance, and reducing maintenance costs and workload.

[0022] The matching structure of the adjusting screw and adjusting nut in the adjusting assembly provides the device with flexible height adjustment function. The operator can accurately control the axial movement of the adjusting screw by rotating the adjusting nut, thereby driving the adjusting plate to slide up and down along the guide column. This adjustment method is simple and convenient, and can accurately adjust the height according to the actual settlement amount. Whether it is a small amount of settlement or a large-scale settlement, the height of the pipeline can be compensated in time through the adjusting assembly, so that the pipeline returns to a relatively safe position, avoiding excessive deformation and damage of the pipeline due to settlement.

[0023] The geological conditions of different regions differ greatly, and the buried pipeline may encounter various degrees and types of settlement during use. The adjustable feature of the device allows it to adapt to a variety of complex working conditions. For example, in areas with unstable geology, the pipeline may experience uneven settlement. By adjusting the adjusting assemblies at different positions, the pipeline can be compensated in height at different parts to ensure the overall flatness and stability of the pipeline. Compared with traditional fixed structure buffer devices, this device has stronger adaptability and versatility and can be widely used in the settlement protection of various buried pipelines.

[0024] The base adopts a rectangular frame structure and is firmly fixed on the foundation through foundation bolts to provide a solid support foundation for the entire device. This structure can effectively resist external forces and ensure the stability of the device in complex underground environments. At the same time, the guide columns at the four corners of the base not only provide precise guidance for the up and down sliding of the adjustment plate, but also enhance the overall structural strength of the device, allowing it to maintain good stability when subjected to settlement impact forces and reducing additional damage to the pipeline caused by shaking or tilting.

[0025] Standardized connection methods such as bolting and welding are used between the various components of the device, facilitating assembly and disassembly on the construction site. During installation, the base, adjustment assembly, buffer assembly, and pipeline fixing component can be installed using simple tools and operation procedures. In terms of maintenance, due to the strong independence of each component, when a part is damaged or needs to be replaced, it can be easily disassembled and replaced individually without the need for large-scale disassembly and reconstruction of the entire device. This not only shortens the maintenance time but also reduces maintenance costs and improves the efficiency of the device.

[0026] By effectively buffering settlement stress and flexibly adjusting height, the device can greatly reduce the probability of damage to buried pipelines due to settlement. This reduces the frequency of pipeline maintenance and replacement, thereby saving a large amount of pipeline maintenance materials and labor costs. For long-distance buried pipeline systems, the cost savings are more significant. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A structural schematic diagram is provided for the utility model;

[0028] Figure 2 A sectional view structural schematic diagram is provided for the utility model;

[0029] Figure 3 A partial structural schematic diagram is provided for the utility model;

[0030] Figure 4 A partial structural schematic diagram is provided for the utility model;

[0031] Figure 5 A side view structural schematic diagram is provided for the utility model.

[0032] Indicated in the figure:

[0033] 1, base; 11, foundation bolt; 12, guide column; 2, adjustment assembly; 21, adjustment screw; 22, adjustment nut; 23, adjustment plate; 231, guide hole; 3, buffer assembly; 31, spring; 32, buffer plate; 4, pipeline fixing component; 41, clamp; 42, bolt; 5, buried pipeline. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0035] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed present application, but only represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. It should be noted that the embodiments in the present application and the features and technical schemes in the embodiments can be combined with each other without conflict, and attention should be paid to the fact that similar reference numerals and letters represent similar items in the following drawings, so that once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] Embodiment 1: An adjustable buried pipeline settlement buffer device, comprising a base 1, an adjusting assembly 2, a buffer assembly 3 and a pipeline fixing piece 4; the base 1 is used to provide a support foundation for the whole device, the adjusting assembly 2 is installed on the base 1 and can adjust the height, the buffer assembly 3 is arranged on the adjusting assembly 2, and the pipeline fixing piece 4 is installed on the buffer assembly 3 and used to fix a buried pipeline 5. The base 1 is a rectangular frame structure, a plurality of anchor bolts 11 are arranged at the bottom of the base 1, and a vertical upward guide column 12 is arranged at each corner of the base 1, respectively. The anchor bolts 11 are used to fix the base 1 to the foundation. The adjusting assembly 2 comprises an adjusting screw 21, an adjusting nut 22 and an adjusting plate 23; the lower end of the adjusting screw 21 is rotationally connected to the center position of the base 1 through a bearing, the upper end of the adjusting screw 21 penetrates through the adjusting plate 23 and is threadedly connected with the adjusting nut 22; the four corners of the adjusting plate 23 are respectively provided with guide holes 231 matched with the guide columns 12, the guide columns 12 penetrate through the guide holes 231, and the adjusting plate 23 can slide up and down along the guide columns 12.

[0037] The buffer assembly 3 comprises a plurality of springs 31 and a buffer plate 32; one end of each spring 31 is fixed to the upper surface of the adjusting plate 23, and the other end is fixedly connected with the lower surface of the buffer plate 32; the springs 31 are arranged in a matrix.

[0038] The pipeline fixing piece 4 comprises two semicircular hoops 41, the two hoops 41 are connected by bolts 42 to form a complete ring, the bottom of the pipeline fixing piece 4 is fixedly connected with the upper surface of the buffer plate 32, and the ring is used to tightly hold the buried pipeline 5.

[0039] The top end of the guide column 12 is provided with a limiting block for preventing the adjusting plate 23 from being detached from the guide column 12.

[0040] The outer side of the adjusting nut 22 is provided with anti-skid lines, facilitating the operator to rotate the adjusting nut 22 to adjust the height of the adjusting plate 23.

[0041] The spring 31 is a cylindrical coil spring, and the material of the spring 31 is high-strength alloy steel, so as to ensure that the spring 31 has good elasticity and durability.

[0042] The working principle of the adjustable buried pipeline settlement buffering device is as follows: after the adjustable buried pipeline settlement buffering device is installed, the whole device is in an initial balanced state. The base 1 is stably fixed on the foundation through the foundation bolts 11, and provides a solid support foundation for the whole device. The lower end of the adjusting screw 21 in the adjusting assembly 2 is rotationally connected with the center of the base 1 through a bearing, the adjusting nut 22 is threadedly connected with the adjusting screw 21, the adjusting plate 23 is in a suitable initial height position under the constraint of the guide column 12, at this time, the spring 31 in the buffering assembly 3 is in a natural extension state, and the pipeline fixing member 4 tightly holds the buried pipeline 5 through the two hoops 41 and the bolts 42, so as to stably fix the buried pipeline 5 on the buffering plate 32.

[0043] When the foundation where the buried pipeline 5 is located is settled due to the change of geological conditions, the fluctuation of underground water level or the influence of surrounding construction factors, the buried pipeline 5 will sink together with the foundation. Since the buried pipeline 5 is tightly held by the pipeline fixing member 4, and the pipeline fixing member 4 is fixedly connected with the buffering plate 32, the buffering plate 32 will move downward together with the buried pipeline 5.

[0044] In the process of the downward movement of the buffering plate 32, compression force is generated on the spring 31 below. After the spring 31 is compressed, elastic deformation occurs, and according to Hooke's law, the spring 31 generates elastic force in the direction opposite to the compression force. The springs 31 are arranged in a matrix between the adjusting plate 23 and the buffering plate 32, can uniformly disperse the impact force generated by the settlement, and store part of the energy brought by the settlement as elastic potential energy of the spring 31, so as to effectively reduce the stress transmitted to the buried pipeline 5, and play a buffering protection role.

[0045] If the settlement amount of the foundation is small, the elastic deformation of the spring 31 is sufficient to buffer the impact force generated by the settlement, at this time, the adjusting assembly 2 can be temporarily not adjusted. When the settlement amount is large, the compression degree of the spring 31 approaches the maximum compression amount, and the buffering effect begins to weaken, the adjusting assembly 2 needs to be started to adjust the height.

[0046] The operator rotates the adjusting nut 22, which causes the adjusting screw 21 to move axially relative to the adjusting nut 22 due to the threaded connection between the adjusting nut 22 and the adjusting screw 21 and the rotational connection between the lower end of the adjusting screw 21 and the base 1. Under the guidance of the guide columns 12, the adjusting plate 23 slides upward along the guide columns 12 as the adjusting screw 21 moves axially.

[0047] The upward movement of the adjusting plate 23 causes the spring 31 and the buffer plate 32 to move upward, which in turn causes the pipeline fixing member 4 and the buried pipeline 5 to be lifted as a whole to a certain height, compensating for the height decrease of the buried pipeline 5 due to foundation settlement. In this way, the buried pipeline 5 can be adjusted to a relatively appropriate position, further relieving the stress on the buried pipeline 5 and ensuring the safe and stable operation of the buried pipeline 5.

[0048] During the operation of the device, the settlement of the buried pipeline 5 needs to be continuously monitored. If new settlement occurs again, the above-mentioned buffering and adjusting process can be repeated according to the new settlement amount, so that the buried pipeline 5 is always in a relatively safe stress state through the buffering action of the spring 31 and the height adjusting function of the adjusting assembly 2, and the damage to the buried pipeline 5 caused by foundation settlement is minimized.

[0049] Example 2: Working process of an adjustable buried pipeline settlement buffering device: Before installing the adjustable buried pipeline settlement buffering device, the laying route of the buried pipeline 5, the surrounding geological conditions, and the underground water level situation need to be surveyed in detail. According to the survey results, the installation position of the device is determined to ensure that the base 1 can be placed stably on a solid foundation and will not be disturbed by other surrounding facilities or construction activities. Prepare all the parts needed for the device, including the base 1, the adjusting screw 21 of the adjusting assembly 2, the adjusting nut 22, the adjusting plate 23, the spring 31 of the buffering assembly 3, the buffer plate 32, the pipe fixing member 4, the hoop 41, and the bolt 42, and check whether the quality and size of the parts meet the requirements. At the same time, prepare the tools needed for installation, such as wrenches, screwdrivers, and cranes.

[0050] Use the crane to lift the base 1 to the predetermined installation position, so that the bottom of the base 1 is in full contact with the ground surface. Fix the base 1 to the ground by the anchor bolts 11. Tighten the anchor bolts 11 with a wrench to ensure that the base 1 is firm and stable, and the four corner guide columns 12 are vertically upward.

[0051] Install the lower end of the adjusting screw 21 in the center of the base 1 through a bearing to ensure that the adjusting screw 21 can rotate freely.

[0052] Place the adjusting plate 23 on the guide column 12, make the guide column 12 pass through the guide hole 231 in the four corners of the adjusting plate 23, and ensure that the adjusting plate 23 can slide smoothly up and down along the guide column 12. Screw the adjusting nut 22 on the upper end of the adjusting screw 21.

[0053] Install multiple springs 31 on the upper surface of the adjusting plate 23 in a matrix distribution manner according to the pre-structure. Use welding or bolt connection to fix the lower end of the spring 31 with the adjusting plate 23 firmly.

[0054] Place the buffer plate 32 on the upper end of the spring 31, and also use welding or bolt connection to fix the upper end of the spring 31 with the buffer plate 32.

[0055] Wrap two semicircular hoops 41 around the outer periphery of the buried pipeline 5, so that the hoops 41 are tightly attached to the pipeline surface. Use bolts 42 to connect the two hoops 41 into a complete ring, and tighten the bolts 42 to firmly hold the pipeline fixing device 4 around the buried pipeline 5.

[0056] Fix the bottom of the pipeline fixing device 4 with the upper surface of the buffer plate 32, and complete the installation of the entire device. After the installation of the device is completed, according to the structural height of the buried pipeline 5 and the actual installation situation, adjust the height of the adjusting plate 23 by rotating the adjusting nut 22. Observe the levelness and perpendicularity of the pipeline to ensure that the buried pipeline 5 is in the appropriate position, and at the same time, the spring 31 is in a natural stretching or slightly pre-compressed state.

[0057] Check whether the connection parts of each component are firm, whether the bolts are tightened, and whether there are cracks in the welding parts. Perform a simple simulation settlement test on the device, which can be done by applying a certain vertical downward force on the pipeline, observing the compression of the spring 31 and the overall stability of the device, and ensuring that the device can work normally. When the foundation where the buried pipeline 5 is located settles, the buried pipeline 5 sinks, driving the pipeline fixing device 4 and the buffer plate 32 to move downward. The buffer plate 32 exerts a compression force on the spring 31 below, and the spring 31 deforms elastically, converting the impact force generated by the settlement into elastic potential energy of the spring 31, thereby reducing the stress transmitted to the buried pipeline 5, and playing a buffering protection role.

[0058] During the operation of the device, use settlement monitoring instruments to monitor the settlement of the buried pipeline 5 in real time. Record the settlement rate and settlement amount data to timely grasp the running state of the pipeline.

[0059] According to the settlement monitoring data, when the settlement amount exceeds the effective buffering range of the spring 31, and the spring 31 approaches the maximum compression amount, the adjusting assembly 2 needs to be started to adjust the height.

[0060] The operator rotates the adjusting nut 22 with a wrench to move the adjusting screw 21 axially relative to the adjusting nut 22. Under the guidance of the guide column 12, the adjusting plate 23 slides upward along the guide column 12, driving the spring 31, the buffer plate 32, the pipeline fixing member 4 and the buried pipeline 5 to be lifted upward as a whole, compensating for the settlement of the pipeline and restoring the pipeline to a relatively safe position.

[0061] The device is regularly subjected to comprehensive inspection, including checking whether the foundation bolts 11 of the base 1 are loose, whether the guide column 12 is deformed or damaged, whether the threads of the adjusting screw 21 and the adjusting nut 22 of the adjusting assembly 2 are worn, whether the cooperation between the guide hole 231 of the adjusting plate 23 and the guide column 12 is smooth, whether the spring 31 of the buffer assembly 3 is fatigued or weakened, whether the buffer plate 32 is damaged, and whether the hoop 41 and the bolt 42 of the pipeline fixing member 4 are tightened.

[0062] Problems found in the inspection are treated in time, such as tightening the loose bolts and replacing the damaged parts. Meanwhile, the movable parts of the device are lubricated, such as applying lubricating oil to the threads of the adjusting screw 21 and the adjusting nut 22 to ensure the flexibility of the adjustment. The metal parts of the device are subjected to anti-corrosion treatment to prevent rusting and corrosion and prolong the service life of the device.

[0063] The above examples are only used to illustrate the technical solutions described in the utility model and do not limit the utility model. Although the utility model has been described in detail with reference to the above embodiments, the utility model is not limited to the above specific embodiments, and any modification or substitution of the utility model is allowed. All technical solutions and improvements that do not deviate from the spirit and scope of the utility model are covered in the scope of the claims of the utility model.

Claims

1. An adjustable buried pipeline settlement buffer device, characterized in that, It includes a base (1), an adjustment component (2), a buffer component (3), and a pipe fastener (4); the adjustment component (2) is installed on the base (1) and its height is adjusted; the buffer component (3) is installed on the adjustment component (2); and the pipe fastener (4) is installed on the buffer component (3) to fix the buried pipe (5).

2. The adjustable buried pipeline settlement buffer device according to claim 1, characterized in that, The base (1) is a rectangular frame structure. Multiple anchor bolts (11) are provided at the bottom of the base (1). Vertical guide columns (12) are provided at the four corners of the base (1). The anchor bolts (11) are used to fix the base (1) to the foundation.

3. The adjustable buried pipeline settlement buffer device according to claim 2, characterized in that, The adjustment assembly (2) includes an adjustment screw (21), an adjustment nut (22), and an adjustment plate (23). The lower end of the adjustment screw (21) is rotatably connected to the center position of the base (1) through a bearing, and the upper end of the adjustment screw (21) passes through the adjustment plate (23) and is threadedly engaged with the adjustment nut (22). The four corners of the adjustment plate (23) are respectively provided with guide holes (231) that are adapted to the guide post (12). The guide post (12) passes through the guide hole (231), and the adjustment plate (23) slides up and down along the guide post (12).

4. The adjustable buried pipeline settlement buffer device according to claim 3, characterized in that, The buffer assembly (3) includes multiple springs (31) and a buffer plate (32); one end of the spring (31) is fixed to the upper surface of the adjusting plate (23), and the other end is fixedly connected to the lower surface of the buffer plate (32). The springs (31) are arranged in a matrix.

5. The adjustable buried pipeline settlement buffer device according to claim 4, characterized in that, The pipe fastener (4) includes two semi-circular clamps (41), which are connected by bolts (42) to form a complete ring. The bottom of the pipe fastener (4) is fixedly connected to the upper surface of the buffer plate (32), and the ring is used to hold the buried pipe (5).

6. The adjustable buried pipeline settlement buffer device according to claim 2, characterized in that, A limit block is provided at the top of the guide post (12).

7. The adjustable buried pipeline settlement buffer device according to claim 3, characterized in that, The outer side of the adjusting nut (22) is provided with anti-slip texture.

8. The adjustable buried pipeline settlement buffer device according to claim 4, characterized in that, The spring (31) is a cylindrical helical spring, and the material of the spring (31) is high-strength alloy steel.

Images