Pipe laying device

Abstract

The application discloses a pipeline laying device and relates to the technical field of agricultural machinery. The pipeline laying device comprises a bearing part, a cutting part, a ditching part and a laying part which are sequentially arranged along a first direction on the bearing part; wherein the cutting part is provided with a pressing assembly and a cutting assembly; the pressing assembly comprises two pressing rollers which are symmetrically arranged on both sides of the cutting assembly; the cutting assembly can cut the to-be-cut pipeline which is pressed by the two pressing rollers and extends along a second direction when the two pressing rollers are displaced along the first direction; the ditching part is located downstream of the cutting part and is used for digging a ditch on target soil; and the laying part is located downstream of the ditching part and is used for laying the to-be-laid pipeline in the ditch. The pipeline laying device can solve the problem that, in the process of constructing a cross network of field drip irrigation, when a longitudinal pipeline is laid in a ditch, a horizontal pipeline which is crossed with the longitudinal pipeline on a path needs to be manually cut in advance along a crossing position to avoid being hooked and wound, the labor intensity is high, and the problem cannot meet the requirement of continuous mechanized farmland operation.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery technology, and in particular to a pipeline laying device. Background Technology

[0002] In farmland drip irrigation construction, horizontal and vertical pipes need to be laid. The horizontal pipes are laid parallel to the crop planting rows, close to the crop roots to achieve uniform water supply. The vertical pipes are arranged longitudinally along the reserved work strip in the field, responsible for distributing water to multiple horizontal pipes, forming a cross-network of drip irrigation in the field. If the vertical pipes are laid directly on the ground, they will occupy the working passage of crop planting, tillage and field management machinery, causing crop crushing and machine stoppage to avoid them. Therefore, the construction method of laying the vertical pipes in trenches is required.

[0003] However, the inventors discovered that during the construction of the cross-network of drip irrigation in the field, when laying longitudinal pipes in trenches, in order to avoid snagging or getting tangled with the transverse pipes that intersect with it on the path, it is necessary to manually cut the transverse pipes at the intersection in advance. This is labor-intensive and cannot meet the requirements of continuous mechanized farmland operations.

[0004] Therefore, the above problems urgently need to be solved. Summary of the Invention

[0005] The purpose of this application is to provide a pipeline laying device to solve the problem that during the construction of cross-network drip irrigation in the field, when laying longitudinal pipelines in trenches, in order to avoid snagging or tangling with transverse pipelines that intersect with the path, it is necessary to manually cut the transverse pipelines at the intersection in advance, which is labor-intensive and cannot meet the requirements of continuous mechanized farmland operations.

[0006] To address the aforementioned technical problems, this application provides the following technical solutions: This application provides a pipeline laying device, comprising: Load-bearing part; The cutting section, trenching section and laying section are sequentially arranged in the bearing part along the first direction; The cutting section is equipped with a holding assembly and a cutting assembly. The holding assembly includes two holding rollers symmetrically arranged on both sides of the cutting assembly. The cutting assembly is capable of cutting the pipe to be cut that is held by the two holding rollers and extends in a second direction when the two holding rollers are displaced in a first direction. The second direction is perpendicular to the first direction. The trenching section is located downstream of the cutting section and is used to create trenches in the target soil. The laying section is located downstream of the trenching section and is used to lay the pipeline to be laid in the trench.

[0007] In some embodiments, the aforementioned pipe laying apparatus includes a pressure roller whose extension direction forms a preset acute angle with the second direction, and the end of the pressure roller near the cutting assembly is opposite to the end away from the cutting assembly and away from the groove.

[0008] In some embodiments, the aforementioned pipeline laying apparatus includes a trenching section comprising a trenching and soil lifting component and a soil throwing component; the trenching and soil lifting component is rotatably connected to a support section, and the trenching and soil lifting component can rotate relative to the support section to cut the target soil and push the soil upward to open a trench in the target soil; the soil throwing component has an inlet and an outlet, the inlet being located on the movement path of the soil pushed by the trenching and soil lifting component, and the soil throwing component being able to throw soil along the outlet toward the target soil on both sides of the trench in a second direction.

[0009] In some embodiments, the aforementioned pipeline laying device includes a trenching and soil-lifting assembly comprising two trenching cutterheads symmetrically inclined relative to the centerline of the cutting assembly; and two soil-throwing assemblies symmetrically arranged relative to the centerline, with an outlet provided on one side opposite to the other of the two soil-throwing assemblies.

[0010] In some embodiments, the aforementioned pipe laying apparatus includes a trenching cutter disc comprising a cutter disc body and a plurality of first trenching cutters; the cutter disc body is rotatably connected to a support portion, and the plurality of first trenching cutters are detachably and spaced apart on the circumferential outer edge of the cutter disc body; the first trenching cutter of one trenching cutter disc bends toward another trenching cutter disc from the side opposite to the cutter disc body; the first trenching cutters of the two trenching cutter discs are arranged alternately.

[0011] In some embodiments, the aforementioned pipe laying apparatus further includes a trenching cutterhead comprising a plurality of second trenching cutters; the second trenching cutters are detachably and spaced apart on the inner side of the cutterhead body; each second trenching cutter includes a cutter arm and a cutter head, one end of the cutter arm being connected to the cutterhead body and bent inward relative to the first trenching cutter, and the cutter head being connected to the other end of the cutter arm and bent toward the cutterhead body; the second trenching cutters of the two trenching cutterheads are arranged alternately.

[0012] In some embodiments, the aforementioned pipeline laying apparatus includes a soil-throwing assembly comprising a guide shroud, a guide plate, a guide trough, and a soil-throwing component; the guide plate is parallel to and spaced apart from the outer side of the trenching cutterhead, the guide trough is disposed on the side of the guide plate away from the trenching cutterhead, and the guide shroud covers the guide trough and the trenching cutterhead; the guide shroud, the guide plate, and the guide trough enclose a target cavity having an inlet and an outlet, and the soil-throwing component is rotatably connected to the target cavity to throw soil onto the target soil on both sides of the trench in a second direction along the outlet.

[0013] In some embodiments, the aforementioned pipe laying apparatus includes a laying section comprising a pipe roll support assembly, a guide roller assembly, and a guide pipe; the pipe roll support assembly includes a U-shaped frame and a pipe roll, the U-shaped frame being disposed on the support section, and the pipe roll being rotatably connected to the U-shaped frame for outputting the pipe to be laid; the guide roller assembly includes adjacently arranged guide rollers, with a first guide channel formed between adjacent guide rollers, and a second guide channel formed within the guide pipe, the pipe to be laid being output to the trench sequentially through the first guide channel and the second guide channel; wherein the guide pipe is arc-shaped to form an arc-shaped second guide channel, and the protruding side of the arc-shaped guide pipe faces the bottom of the trench.

[0014] In some embodiments, the aforementioned pipe laying apparatus further includes a pipe laying wheel located downstream of the guide pipe, which is capable of squeezing the bottom and walls of the trench and pressing the pipe to be laid out from the guide pipe to the bottom of the trench.

[0015] In some embodiments, the aforementioned pipe laying device further includes a guide shovel in the trenching section, the guide shovel being located on the side of the trenching and soil lifting assembly away from the cutting section; the guide shovel is arc-shaped, and the protruding side of the arc-shaped guide shovel is away from the trenching and soil lifting assembly.

[0016] By employing the above technical solution, the pipeline laying device of the present invention has at least the following advantages: This application provides a pipe laying device, comprising: a bearing section and a cutting section, a trenching section, and a laying section sequentially arranged along a first direction on the bearing section; wherein, the cutting section is equipped with a holding assembly and a cutting assembly, the holding assembly including two holding rollers symmetrically arranged on both sides of the cutting assembly, the cutting assembly being able to cut the pipe to be cut that is held by the two holding rollers and extends along a second direction when the two holding rollers are displaced along the first direction, the second direction being perpendicular to the first direction; the trenching section is located downstream of the cutting section and is used to open a trench in the target soil; the laying section is located downstream of the trenching section and is used to lay the pipe to be laid in the trench. This application sets up a cutting section, a trenching section, and a laying section sequentially on a supporting section along a first direction. During operation, each process can be advanced synchronously along the direction of device travel, ensuring smooth connection between each process. The cutting section is positioned in front and equipped with a holding component and a cutting component. Before trenching, the pipe to be cut, which intersects with the pipe to be laid, can be cut in advance. The two holding rollers of the holding component first contact and press the pipe to be cut, and then the cutting component works synchronously to cut the pipe under the holding state. This ensures accurate cutting position and a flat pipe cut surface, preventing the pipe to be cut from being pulled, wrapped, or torn in subsequent processes, ensuring the continuity and safety of the operation. There is no need for manual cutting of the pipe to be cut at the intersection in advance, reducing the intensity of manual labor. The trenching section is located downstream of the cutting section to open a trench in the target soil for laying the pipe to be laid. The laying section is located downstream of the trenching section and can lay the pipe to be laid into the trench excavated in the trenching section, realizing continuous mechanized operation of pipe cutting, trenching, and pipe laying, meeting the requirements of continuous mechanized farmland operation in modern agriculture. This application solves the technical problem that during the construction of cross-network drip irrigation in the field, when laying longitudinal pipes in trenches, in order to avoid snagging or tangling with transverse pipes that intersect with the longitudinal pipes along the path, it is necessary to manually cut the transverse pipes at the intersection in advance. This is labor-intensive and cannot meet the requirements of continuous mechanized farmland operations.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein: Figure 1 A schematic isometric view of a pipe laying device according to the present invention is shown. Figure 2 A schematic diagram of the front view of a pipe laying device according to the present invention is shown. Figure 3 A schematic top view of the cutting section of a pipe laying device according to the present invention is shown. Figure 4 A schematic diagram of a partial structure of the trench section of a pipe laying device according to the present invention is shown. Figure 5 The diagram schematically illustrates the isometric structure of the trenching cutterhead of a pipe laying device according to the present invention. Figure 6 The diagram schematically illustrates an isometric view of the soil-throwing component of a pipeline laying device according to the present invention. Figure 7 The diagram schematically illustrates the isometric structure of a rotary cutter in a pipe laying device according to the present invention. Figure 8 The diagram schematically illustrates the isometric structure of a reciprocating cutter in a pipe laying device according to the present invention. Figure 9 The diagram schematically illustrates the isometric structure of the soil-throwing component of the double-disc mechanism of a pipeline laying device according to the present invention. Figure 10 The diagram schematically illustrates the isometric structure of the soil-throwing component of the spiral mechanism of a pipe-laying device according to the present invention.

[0019] Explanation of icon numbers: 1. Load-bearing component; 2. Cutting section; 21. Holding assembly; 22. Cutting assembly; 211. Holding roller; 221. Disc cutter; 222. Mounting base; 223. Rotary drive component; 224. Dial; 225. Base plate; 226. Swing assembly; 227. Blade body; 228. Guide component; 229. Limiting component; 2241. Protruding pin; 2261. First swing arm; 2262. Second swing arm; 3. Trenching section; 31. Trenching and soil lifting assembly; 32. Soil throwing assembly; 33. Guide shovel; 311. Trenching cutter head; 321. Guide shroud; 322. Guide plate; 323. Guide channel; 324. Soil throwing component; 3111. Cutter head body; 3112. First trenching cutter; 3113. Second trenching cutter; 3113a. Cutter arm; 3113b. Cutter head; 3241. Soil throwing disc; 3242. Soil throwing blade; 3243. Hydraulic motor; 3244. Rotating shaft; 3245. Soil throwing fan blade; 4. Laying section; 41. Pipe roll bearing assembly; 42. Guide roller assembly; 43. Guide pipe; 44. Pipe laying wheel; 411. U-shaped frame; 412. Pipe roll; A: First direction; B: Second direction; R: Preset acute angle. Detailed Implementation

[0020] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0021] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0023] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. All terms used in this application have the same meaning as understood by those skilled in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted with an idealized or highly formalized meaning, unless expressly defined herein.

[0024] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0025] In farmland drip irrigation construction, horizontal and vertical pipes need to be laid. The horizontal pipes are laid parallel to the crop planting rows, close to the crop roots to achieve uniform water supply. The vertical pipes are arranged longitudinally along the reserved work strip in the field, responsible for distributing water to multiple horizontal pipes, forming a cross-network of drip irrigation in the field. If the vertical pipes are laid directly on the ground, they will occupy the working passage of crop planting, tillage and field management machinery, causing crop crushing and machine stoppage to avoid them. Therefore, the construction method of laying the vertical pipes in trenches is required.

[0026] However, the inventors discovered that during the construction of cross-network drip irrigation in the field, when laying longitudinal pipes in trenches, in order to avoid snagging or tangling with transverse pipes that intersect the path, it is necessary to manually cut the transverse pipes at the intersection points in advance. This is labor-intensive and cannot meet the requirements of continuous mechanized farmland operations. Therefore, the inventors innovatively designed a pipe laying device to improve construction efficiency and meet the requirements of continuous mechanized farmland operations.

[0027] like Figure 1 and Figure 2 As shown, this application provides a pipe laying device, including: a bearing part 1 and a cutting part 2, a trenching part 3 and a laying part 4 sequentially arranged along a first direction A on the bearing part 1; wherein, the cutting part 2 is equipped with a holding assembly 21 and a cutting assembly 22, the holding assembly 21 includes two holding rollers 211 symmetrically arranged on both sides of the cutting assembly 22, the cutting assembly 22 is capable of cutting the pipe to be cut that is held by the two holding rollers 211 when it is displaced along the first direction A and extends along a second direction B, the second direction B being perpendicular to the first direction A; the trenching part 3 is located downstream of the cutting part 2 and is used to open a trench in the target soil; the laying part 4 is located downstream of the trenching part 3 and is used to lay the pipe to be laid in the trench.

[0028] Specifically, the pipeline laying device of this application includes a bearing part 1, which can adopt a rigid frame structure and can be equipped with a traction connection seat. It can be detachably connected to an agricultural traction device through the traction connection seat to realize traction movement.

[0029] The cutting section 2, trenching section 3, and laying section 4 are sequentially arranged on the supporting section 1 along the first direction A. The first direction A is the direction of travel during the operation of the device, and also the direction of laying the pipeline to be laid. The cutting section 2, trenching section 3, and laying section 4 move synchronously along the first direction A, which can sequentially complete the cutting of the pipeline to be cut along the second direction B, the trenching of the target soil, and the laying of the pipeline to be laid in the trench, thereby realizing the continuous advancement of the pipeline laying operation process and ensuring smooth connection between each process.

[0030] The cutting section 2 is equipped with a holding assembly 21 and a cutting assembly 22, which work together to cut the pipe to be cut. The holding assembly 21 includes two holding rollers 211 symmetrically arranged on both sides of the cutting assembly 22. The holding rollers 211 can be made of wear-resistant material and have anti-slip textures on the surface to increase friction with the pipe and prevent the pipe from slipping during the holding process. The two holding rollers 211 can rotate synchronously with the overall movement of the device and stably hold the pipe to be cut extending along the second direction B, providing a stable positioning base for the cutting operation. The cutting component 22 is positioned between two holding rollers 211. The appropriate structural form can be flexibly selected according to the actual farmland conditions. When the device moves along the first direction A, the two holding rollers 211 first contact the pipe to be cut and press it firmly. Then, the cutting component 22 works synchronously to cut the pipe under the holding state, thereby ensuring accurate cutting position and making the pipe cut surface flat. This prevents the pipe from being pulled, wrapped, or torn in subsequent processes, ensuring the continuity and safety of the operation.

[0031] like Figure 1 and Figure 2 As shown, in some embodiments, the cutting assembly 22 can be a fixed cutter. The fixed cutter is mounted on the frame via a cutter holder. The cutting edge is located between two holding rollers 211 and faces the traveling direction of the device along the first direction A. When the device moves forward, the pipe to be cut, which is held by the holding rollers 211 and extends along the second direction B, moves relative to the cutting edge, thereby completing the cutting.

[0032] like Figure 7As shown, in some embodiments, the cutting assembly 22 can be a rotary cutter, which may include a disc cutter 221, a mounting base 222, and a rotary drive 223. The disc cutter 221 is rotatably mounted on the mounting base 222 via a cutter shaft 3244. The rotary drive 223 drives the disc cutter 221 to rotate around the cutter shaft 3244. The cutting edge of the disc cutter 221 is located on the supports of two holding rollers 211, and is used to cut the pipe to be cut that is held by the holding rollers 211 and extends along the second direction B.

[0033] like Figure 8 As shown, in some embodiments, the cutting assembly 22 can be a reciprocating cutter. The reciprocating cutter includes a dial 224, a base plate 225, a swing assembly 226, a blade body 227, a guide member 228, and a limiting member 229. The base plate 225 is connected to the support portion 1. The guide member 228 is provided on the base plate 225. The guide member 228 includes two sets of rollers. The two sets of rollers form a guide channel extending along the first direction A. The blade body 227 is slidably connected to the guide channel. The swing assembly 226 is hinged to the base plate 225. The dial 224 is rotatably connected to the base plate 225 and is provided with two... The protruding nail 2241 and the swing assembly 226 include a first swing arm 2261 near the dial 224 and a second swing arm 2262 with a slotted connection to the blade body 227. The protruding nail 2241 strikes the first swing arm 2261, causing the swing assembly 226 to rotate relative to the base plate 225. This causes the second swing arm 2262 to drive the blade body 227 to reciprocate along the first direction A. The limiting member 229 moves with the blade body 227 and forms a limit between the two sets of rollers. The movement path of the blade body 227 passes through the pipe to be cut, which is pressed between the two holding rollers 211, thereby achieving the cutting of the pipe to be cut.

[0034] The second direction B is the extension direction of the pipe to be cut, and the second direction B is perpendicular to the first direction A. In actual operation, the pipe to be cut is laid along the second direction B, and the pipe to be laid is laid along the first direction A. The two form a cross-shaped pipe network structure, and the pipe to be cut and the pipe to be laid are perpendicular to each other. This is to adapt to the operation scenario of cross-network drip irrigation in the field, to ensure that the device can specifically handle the cutting needs of the cross-pipes during operation, and to ensure the smooth progress of subsequent trenching and pipe laying operations.

[0035] The trenching section 3 is located downstream of the cutting section 2 to create a trench in the target soil for laying the pipeline. After the cutting section 2 cuts the pipeline, the trenching section 3 immediately begins trenching downstream of the cut position. At this point, the pipeline has been cut, and the trenching section 3 can smoothly complete the trench excavation. The trench specifications can be adapted to the pipeline to be laid and the needs of farmland construction, ensuring that the pipeline can be stably buried in the soil after it is laid.

[0036] The laying section 4 is located downstream of the trenching section 3 and is also installed on the supporting section 1. It is used to lay the pipeline to be laid into the trench excavated in the trenching section 3. The laying section 4 has pipeline storage and guiding functions, which can guide the pipeline to be laid to move smoothly and avoid deviation or bending during the laying process. The laying section 4 moves synchronously with the trenching section 3 and the cutting section 2, and the pipeline is laid immediately after the trench excavation is completed, ensuring the continuity and coordination of the laying operation.

[0037] In the existing construction approach for laying cross-network drip irrigation pipes in the field, the pipe to be cut extending along the second direction B and the pipe to be laid along the first direction A are two independent pipelines in the network that need to be connected later. When it is necessary to lay the pipe to be laid, the traditional operation method generally chooses to bypass the already laid pipe to be cut, or to manually cut the pipe to be cut at the intersection point in advance. After the pipe to be laid is buried, the cut pipe to be cut is reconnected to restore the network, thus forming a complete and interconnected cross-network drip irrigation in the field. Based on this construction logic, the pipe cutting process and the trenching and pipe laying process are independent of each other. Therefore, the existing pipe laying equipment generally only has the function of trenching and pipe laying, and will not be used for cutting the pipe to be cut.

[0038] Furthermore, the addition of a cutting section to the pipe-laying device could easily lead to technical bias: if a cutting section is installed in front of the trenching and laying sections, the cut end of the pipe to be cut will lack fixed constraints, and the pipe will be prone to springback, displacement, and shaking, which will increase the risk of subsequent trenching components snagging or tangling the pipe. This application uses symmetrically arranged pressure rollers 211 to pre-press the pipe to be cut. The pipe extending along the second direction B is pressed and positioned before cutting. The pressure rollers 211 apply a lateral tension along the second direction B to the pipe extending along the second direction B. The lateral tension keeps the pipe taut and flat during the pressing process, eliminating the risk of entanglement caused by rebound, offset, and shaking after pipe cutting. It also avoids wrinkles and curling of the pipe, ensuring a stable contact position between the pipe and the cutting component 22, thereby optimizing the cutting effect. The cutting component 22 cuts the taut and flat pipe, resulting in a flat pipe cut surface. This avoids problems such as incomplete cutting and skewed cuts. Furthermore, a flat pipe cut surface facilitates the subsequent connection of horizontal and vertical pipes to form a cross-network of field irrigation.

[0039] This application arranges the cutting section 2, trenching section 3, and laying section 4 sequentially on the bearing section 1 along the first direction A of the machine's movement. During operation, the cutting section 2 first cuts the pipe to be cut along the second direction B, clearing obstacles such as pipe snagging and entanglement from the path for the downstream trenching section 3, ensuring the smooth implementation of the trenching operation. The trench excavated by the trenching section 3 provides space for the pipe laying operation of the laying section 4, allowing the pipe to be laid to be directly lowered into the trench. The cutting section 2, trenching section 3, and laying section 4 are not simply an assembly of independent functional modules; their spatial arrangement, operational sequence, and functional purpose are closely related, forming a complete technical solution for continuous operation.

[0040] This application provides a pipe laying device, including: a support part 1 and a cutting part 2, a trenching part 3 and a laying part 4 sequentially arranged along a first direction A on the support part 1; wherein, the cutting part 2 is equipped with a holding assembly 21 and a cutting assembly 22, the holding assembly 21 includes two holding rollers 211 symmetrically arranged on both sides of the cutting assembly 22, the cutting assembly 22 is capable of cutting the pipe to be cut that is held by the two holding rollers 211 when it is displaced along the first direction A and extends along a second direction B, the second direction B being perpendicular to the first direction A; the trenching part 3 is located downstream of the cutting part 2 and is used to open a trench in the target soil; the laying part 4 is located downstream of the trenching part 3 and is used to lay the pipe to be laid in the trench. This application sets up a cutting section 2, a trenching section 3, and a laying section 4 sequentially arranged on the support section 1 along the first direction A. During operation, each process can be simultaneously advanced along the direction of device travel, ensuring smooth connection between each process. The cutting section 2 is positioned in front and equipped with a holding component 21 and a cutting component 22. It can cut the pipe to be cut before the trenching section 3 starts working, cutting off any pipes that intersect with the pipe to be laid. The two holding rollers 211 of the holding component 21 first contact and press the pipe to be cut, and then the cutting component 22 works synchronously to cut the pipe under the holding state, thereby ensuring the cutting... The precise cutting position ensures a smooth pipe cut surface, preventing the pipe from being pulled, coiled, or torn during subsequent processes, thus guaranteeing operational continuity and safety. It eliminates the need for manual pre-cutting of the pipe at intersections, reducing labor intensity. The trenching section 3, located downstream of the cutting section 2, creates a trench in the target soil for laying the pipe. The laying section 4, located downstream of the trenching section 3, allows the pipe to be laid into the trench excavated in the trenching section 3, achieving continuous mechanized operations for pipe cutting, trenching, and pipe laying, meeting the requirements of modern agricultural continuous mechanized farmland operations. This application solves the technical problem encountered during the construction of cross-network drip irrigation systems in the field. When laying longitudinal pipes in trenches, to avoid snagging or entanglement with intersecting transverse pipes, manual pre-cutting at intersections is necessary, resulting in high labor intensity and failing to meet the requirements of continuous mechanized farmland operations.

[0041] like Figure 3As shown, in some embodiments, the extension direction of the holding roller 211 forms a preset acute angle R with the second direction B, and the end of the holding roller 211 near the cutting assembly 22 is opposite to the end of the cutting assembly 22 and away from the groove 3.

[0042] Specifically, this application sets the extension direction of the holding roller 211 to a preset acute angle R with the second direction B, and the end of the holding roller 211 closer to the cutting component 22 is relatively away from the groove 3. The two holding rollers 211 are symmetrically distributed on both sides of the cutting component 22 according to this angle and position requirement. During operation, the holding roller 211 rotates synchronously with the whole machine along the first direction A. It not only exerts pressure on the pipe to be cut, but also applies a lateral tension along the second direction B to the pipe extending along the second direction B due to its own inclined structural characteristics. The lateral tension can keep the pipe to be cut taut and flat during the holding process, avoiding wrinkles, curling and other situations, ensuring the stable contact position between the pipe to be cut and the cutting component 22, thereby optimizing the cutting operation effect, so that the cutting component 22 cuts the taut and flat pipe, making the pipe cut surface flat and avoiding problems such as incomplete cutting and skewed cut. Meanwhile, the arrangement of the pressure roller 211 with one end close to the cutting component 22 away from the trench 3 can avoid the pressure roller 211 interfering with the subsequent trenching operation. It can also guide the cut pipe to be cut to extend to both sides, so that the openings of the pipe on both sides after the cut are far apart, preventing the pipe residue from affecting the operation path of the trenching section 3. It further avoids the pipe from being wound or the flat end of the pipe from being damaged during the trenching operation, ensuring the smooth progress of the trenching operation of the trenching section 3 and improving the continuity and stability of the whole machine operation.

[0043] The extension direction of the holding roller 211 forms a preset acute angle R with the second direction B. The value of the preset acute angle R can range from 5° to 30°. In some embodiments, the preset acute angle R can be 5°, the tilt angle of the holding roller 211 is relatively small, the proportion of the traction conveying force of the holding roller 211 on the pipe to be cut along the first direction A is relatively large, the pipe is not easy to slip off between the holding rollers, and the holding roller 211 provides a relatively small lateral component force on the pipe to be cut. In some embodiments, the preset acute angle R can be 15°, the holding roller 211 provides a larger lateral component force on the pipe to be cut compared with the 5° preset acute angle R, improves the stability of pulling the pipe to be cut to generate lateral displacement along the second direction B, so that the pipe is fully tightened and flattened, wrinkles and curling deformation can be basically eliminated, the contact position between the pipe and the cutting assembly 22 is stable, and the cut is flat. In some embodiments, the preset acute angle R can be 30°, and the tilt angle of the holding roller 211 is relatively large. The holding roller 211 provides a larger lateral force to the pipe to be cut compared to when the preset acute angle R is 15°, resulting in a stronger lateral stretching effect of the pipe. The specific value of the preset acute angle R can be adaptively selected by comprehensively considering the material characteristics of the pipe to be cut, the pipe diameter, the pipe wall thickness, the traveling speed of the whole machine along the first direction A, and the on-site soil conditions.

[0044] like Figure 1 and Figure 2 As shown, in some embodiments, the trenching section 3 includes a trenching and soil lifting component 31 and a soil throwing component 32; the trenching and soil lifting component 31 is rotatably connected to the bearing section 1, and the trenching and soil lifting component 31 can rotate relative to the bearing section 1 to cut the target soil and push the soil upward to open a trench on the target soil; the soil throwing component 32 has an inlet and an outlet, the inlet is located on the movement path of the soil pushed by the trenching and soil lifting component 31, and the soil throwing component 32 can throw soil along the outlet toward the target soil on both sides of the trench in the second direction B.

[0045] Specifically, the trenching section 3 of this application includes a trenching and soil-lifting component 31 and a soil-throwing component 32. The trenching and soil-lifting component 31 is rotatably connected to the bearing section 1. When it rotates relative to the bearing section 1, it can cut the target soil and simultaneously push the cut soil upwards, thereby completing the trench opening on the target soil. The trenching section 3 of this application can realize the simultaneous advancement of trench excavation and soil transportation, avoid the accumulation of excavated soil in the trench, ensure the regularity of trench formation, and provide working space for the subsequent laying of pipelines.

[0046] The soil-throwing component 32 is equipped with an inlet and an outlet. The inlet is located on the movement path of the soil being conveyed by the trenching and soil-lifting component 31, and the outlet throws the soil onto the target soil on both sides of the trench in the second direction B. The soil-throwing component 32 can disperse the soil generated during excavation, preventing soil from accumulating around the trench and affecting subsequent operations, ensuring the smoothness of trenching operations, facilitating the laying of pipelines to be laid and subsequent field operations, and improving the continuity and stability of the overall machine operation.

[0047] like Figure 4 As shown, in some embodiments, the trenching and soil-lifting component 31 includes two trenching cutterheads 311 that are symmetrically inclined relative to the center line of the cutting component 22; there are two soil-throwing components 32 that are symmetrically arranged relative to the center line, and an outlet is provided on the opposite side of the two soil-throwing components 32.

[0048] Specifically, the trenching and soil-lifting component 31 includes two trenching cutterheads 311 symmetrically inclined relative to the centerline of the cutting component 22. This symmetrical arrangement ensures that the two cutterheads 311 experience balanced forces when cutting the target soil, improving the stability of the trenching operation. Simultaneously, the inclined cutterheads 311 form an entry angle with the target soil, allowing for gradual stripping of soil layers from shallow to deep, reducing cutting resistance. Furthermore, the symmetrically inclined cutterheads 311 on both sides bear mutually canceling lateral forces exerted by the soil, reducing vibration and impact, and ensuring stable operation of the cutterheads 311 during the trenching process.

[0049] Two soil-throwing components 32 are arranged symmetrically relative to the center line. The two soil-throwing components 32 have an outlet on their opposite sides, which allows the soil conveyed by the trenching and soil-lifting component 31 to be simultaneously thrown onto both sides of the trench in the second direction B through the two soil-throwing components 32. This ensures that the soil distribution on both sides of the trench is symmetrical and balanced, which not only ensures the smoothness of trenching operations, but also facilitates the laying of pipelines to be laid and subsequent field operations, thereby improving the standardization and continuity of the overall machine operation.

[0050] like Figure 4 and Figure 5 As shown, in some embodiments, the trenching cutter head 311 includes a cutter head body 3111 and a plurality of first trenching cutters 3112; the cutter head body 3111 is rotatably connected to the support part 1, and the plurality of first trenching cutters 3112 are detachably and spaced apart on the circumferential outer edge of the cutter head body 3111; the first trenching cutter 3112 of one trenching cutter head 311 is bent toward the other trenching cutter head 311 on the side opposite to the cutter head body 3111; the first trenching cutters 3112 of the two trenching cutter heads 311 are arranged alternately.

[0051] Specifically, the trenching cutterhead 311 includes a cutterhead body 3111 and multiple first trenching cutters 3112. The cutterhead body 3111 is rotatably connected to the bearing part 1, which can stably drive the first trenching cutters 3112 to rotate synchronously, providing stable power support for trench cutting operations. The multiple first trenching cutters 3112 are detachable and spaced apart on the circumferential outer edge of the cutterhead body 3111. The detachable arrangement facilitates the replacement and maintenance of the first trenching cutters 3112, reducing equipment operation and maintenance costs. The spaced arrangement makes the cutting operation more uniform, reduces soil resistance during the cutting process, ensures smooth rotation of the trenching cutterhead 311, and improves the regularity of trench sidewall cutting.

[0052] This application features a first grooving cutter 3112 of a grooving cutter head 311 bent towards the other grooving cutter head 311 on the side opposite to the cutter head body 3111. This allows the bent end of the first grooving cutter 3112 to cut the inner sidewall of the trench during rotation and cutting, scraping away protruding soil from the inner wall of the trench, improving the smoothness and regularity of the trench sidewall, and reducing soil residue. Furthermore, the first grooving cutters 3112 of the two grooving cutter heads 311 are arranged in a staggered manner, achieving mutual cooperation while avoiding collisions, ensuring the stability and safety of the operation.

[0053] like Figure 5 As shown, in some embodiments, the trenching cutter head 311 further includes a plurality of second trenching cutters 3113; the second trenching cutters 3113 are detachable and spaced apart on the inner side of the cutter head body 3111; the second trenching cutter 3113 includes a cutter arm 3113a and a cutter head 3113b, one end of the cutter arm 3113a is connected to the cutter head body 3111 and bent inward relative to the first trenching cutter 3112, and the cutter head 3113b is connected to the other end of the cutter arm 3113a and bent toward the cutter head body 3111; the second trenching cutters 3113 of the two trenching cutter heads 311 are arranged alternately.

[0054] Specifically, the trenching cutter head 311 of this application also includes a plurality of second trenching cutters 3113. The second trenching cutters 3113 are detachable and spaced apart on the inner side of the cutter head body 3111, forming an inner-outer cooperation cutting structure with the outer first trenching cutter 3112. The detachable arrangement facilitates the replacement and maintenance of the second trenching cutters 3113, the spaced arrangement makes the cutting operation more uniform, and the inner position allows the second trenching cutters 3113 to cut the soil in the middle and bottom of the trench, thereby cooperating with the outer first trenching cutter 3112 that cuts the sidewall of the trench to achieve synchronous cutting of the sidewall and bottom of the trench, improving the regularity of the trench formation.

[0055] The second trenching cutter 3113 includes a cutter arm 3113a and a cutter head 3113b. One end of the cutter arm 3113a is connected to the cutter head body 3111 and bends inward relative to the first trenching cutter 3112. The cutter head 3113b is connected to the other end of the cutter arm 3113a and bends towards the cutter head body 3111. This allows the cutter head 3113b to form an inclined entry angle relative to the plane of rotation of the cutter head, thereby enabling it to cut into the hard soil layer at the bottom of the trench layer layer by layer, reducing instantaneous entry resistance and dispersing the impact load applied to the cutter arm 3113a by the soil layer. The cutter head 3113b, bent towards the cutter head body 3111, forms a cutting end face, which smooths the soil at the bottom of the trench during the cutting process and can also guide the soil generated during cutting upward. At the same time, the second trenching cutters 3113 of the two trenching cutter heads 311 are arranged in an alternating manner to achieve mutual cooperation while avoiding collision, ensuring the stability and safety of the operation.

[0056] like Figure 6 As shown, in some embodiments, the soil-throwing assembly 32 includes a flow guide 321, a flow guide plate 322, a flow guide trough 323, and a soil-throwing component 324; the flow guide plate 322 is parallel to and spaced apart from the outer side of the trenching cutter head 311, the flow guide trough 323 is disposed on the side of the flow guide plate 322 away from the trenching cutter head 311, and the flow guide 321 covers the flow guide trough 323 and the trenching cutter head 311; the flow guide 321, the flow guide plate 322, and the flow guide trough 323 form a target cavity with an inlet and an outlet, and the soil-throwing component 324 is rotatably connected to the target cavity to throw soil onto the target soil on both sides of the trench in the second direction B along the outlet.

[0057] Specifically, the soil-throwing component 32 of this application includes a guide hood 321, a guide plate 322, a guide trough 323, and a soil-throwing component 324. The guide plate 322 is parallel to and spaced apart on the outside of the trenching cutter head 311, forming a barrier on the outside of the path through which the trenching cutter head 311 cuts and lifts the soil, thus restraining the loose soil lifted by the cutting. The guide trough 323 is located on the side of the guide plate 322 away from the trenching cutter head 311. The guide hood 321 covers the guide trough 323 and the trenching cutter head 311. The guide hood, guide plate 322, and guide trough 323 form a target cavity with an inlet and an outlet. The target cavity can restrain the soil conveyed by the trenching and soil-lifting component 31, guide the soil to move along a preset path, prevent soil from splashing everywhere, and ensure that the soil can enter the working range of the soil-throwing component 324.

[0058] The soil-throwing component 324 is rotatably connected to the target cavity, enabling it to throw the soil entering the cavity through the outlet onto the target soil on both sides of the trench in the second direction B. The soil-throwing component 324 can be flexibly selected to suit the specific farmland conditions.

[0059] like Figure 2 and Figure 6As shown, in some embodiments, the soil-throwing component 324 can be a single-disc mechanism. The soil-throwing component 324 includes a soil-throwing disc 3241 and a soil-throwing blade 3242. A hydraulic motor 3243 can be used as a driving component to drive the soil-throwing disc 3241 to rotate through a pulley, thereby driving the soil-throwing blade 3242 to throw soil onto the target soil on both sides of the trench in the second direction B along the outlet.

[0060] like Figure 9 As shown, in some embodiments, the soil-throwing component 324 can be a double-disc mechanism. The soil-throwing component 324 includes two soil-throwing discs 3241 and soil-throwing blades 3242 correspondingly disposed on the soil-throwing discs 3241. A hydraulic motor 3243 can be provided as a driving component, which drives the two soil-throwing discs 3241 to rotate by connecting pulleys, thereby driving the corresponding soil-throwing blades 3242 to throw soil onto the target soil on both sides of the trench in the second direction B along the outlet.

[0061] like Figure 10 As shown, in some embodiments, the soil-throwing component 324 can be a spiral mechanism. The soil-throwing component 324 includes a rotating shaft 3244 and a soil-throwing fan blade 3245. The rotating shaft 3244 extends along the first direction A and is rotatably connected to the side wall of the guide channel 323. The soil-throwing fan blade 3245 is disposed on the rotating shaft 3244. By driving the rotating shaft 3244 to rotate in the target cavity, the soil-throwing fan blade 3245 rotates and simultaneously throws soil onto the target soil on both sides of the trench in the second direction B along the outlet.

[0062] like Figure 1 and Figure 2 As shown, in some embodiments, the laying section 4 includes a pipe roll support assembly 41, a guide roller group 42, and a guide pipe 43; the pipe roll support assembly 41 includes a U-shaped frame 411 and a pipe roll 412, the U-shaped frame 411 is disposed on the support section 1, and the pipe roll 412 is rotatably connected to the U-shaped frame 411 for outputting the pipe to be laid; the guide roller group 42 includes adjacently arranged guide rollers, a first guide channel is formed between adjacent guide rollers, and a second guide channel is formed inside the guide pipe 43, and the pipe to be laid is output to the trench in sequence through the first guide channel and the second guide channel; wherein, the guide pipe 43 is arc-shaped to form an arc-shaped second guide channel, and the protruding side of the arc-shaped guide pipe 43 faces the bottom of the trench.

[0063] Specifically, the laying section 4 of this application includes a pipe roll support assembly 41, a guide roller assembly 42, and a guide pipe 43. The pipe roll support assembly 41 includes a U-shaped frame 411 and a pipe roll 412. The U-shaped frame 411 is fixedly mounted on the support section 1 to provide stable installation support for the pipe roll 412. The pipe roll 412 is rotatably connected to the U-shaped frame 411, which can stably output the pipe to be laid and ensure the continuity of pipe output. The guide roller assembly 42 is composed of adjacent guide roller assemblies 42, with a first guide channel formed between adjacent guide rollers and a second guide channel formed inside the guide pipe 43. The pipe to be laid is output to the trench sequentially through the first guide channel and the second guide channel. The double guide structure can limit the pipe and prevent deviation or bending during pipe output.

[0064] The guide pipe 43 is arc-shaped to form an arc-shaped second guide channel, and the protruding side of the arc-shaped guide pipe 43 faces the bottom of the trench. The guide pipe 43 can guide the pipeline to be laid to be smoothly output along the arc-shaped second guide channel, so that the pipeline can be arranged in close contact with the bottom of the trench when entering the trench, avoiding the pipeline from floating and improving the stability of the laying.

[0065] like Figure 1 and Figure 2 As shown, in some embodiments, the laying section 4 further includes a pipe-laying wheel 44, which is located downstream of the guide pipe to be able to squeeze the bottom and walls of the trench and press the pipe to be laid out from the guide pipe to the bottom of the trench.

[0066] Specifically, the laying section 4 of this application also includes a pipe-laying wheel 44, which is located downstream of the guide pipe 43 and can move synchronously with the entire machine to compress the bottom and walls of the trench. The pipe-laying wheel 44 can regulate the shape of the trench, making the bottom of the trench flatter and the walls of the trench more compact, avoiding the trench from collapsing or deforming, providing a stable laying environment for the pipeline to be laid, and at the same time compacting the soil in the trench, improving the forming quality of the trench. Furthermore, the pipe-laying wheel 44 can hold the pipeline to be laid output from the guide pipe 43 to the bottom of the trench, and work in conjunction with the guide pipe 43 and the guide roller group 42 to further fix the position of the pipeline to be laid, preventing the pipeline from floating or shifting during the laying process, ensuring that the pipeline to be laid can be stably attached to the bottom of the trench, thereby improving the stability and regularity of the pipeline laying, and improving the quality and efficiency of the entire machine's pipe laying operation.

[0067] like Figure 2 As shown, in some embodiments, the trenching section 3 further includes a guide shovel 33, which is located on the side of the trenching and soil lifting assembly 31 away from the cutting section 2; the guide shovel 33 is arc-shaped, and the protruding side of the arc-shaped guide shovel 33 is away from the trenching and soil lifting assembly 31.

[0068] Specifically, the trenching section 3 also includes a guide shovel 33, which is located on the side of the trenching and soil-lifting component 31 away from the cutting section 2. It can move synchronously with the trenching section 3 and can isolate the soil being lifted by the trenching and soil-lifting component 31. The guide shovel 33 is arc-shaped, and its protruding side is away from the trenching and soil-lifting component 31 to block the soil splashed during the lifting process through its arc-shaped surface. At the same time, it continuously collects the broken soil cut off during the trenching operation during the advancement of the device, ensuring the cleanliness of the working environment of the laying section 4, providing good conditions for the subsequent laying of pipelines, and ensuring the smooth progress of the pipeline laying operation.

[0069] This application does not involve the independent and simple assembly of various functional components. Instead, it integrates and arranges components such as the pressure roller 211, cutting assembly 22, trenching and soil lifting assembly 31, soil throwing assembly 32, pipe roll bearing assembly 41, guide roller group 42, and guide pipe 43 along a straight line reference in the first direction A. This allows the work processes of cutting the pipe to be cut, trenching and soil lifting, trench shaping and guiding, and guiding the laying of the pipe to be laid to proceed in an orderly manner along the reference straight line. From the structural root, it avoids defects such as misalignment, offset, and non-axis of various detailed work positions, forming an integrated work structure system with unified component positions, a unique work reference, and highly interconnected processes. Each detailed work process forms a closed-loop linkage relationship of pre-laying, step-by-step acceptance, and mutual matching, constituting an inseparable organic whole. During operation, the upstream symmetrically positioned pressure rollers 211 first center and position the pipe to be cut extending in the second direction B. Then, the cutting component 22 cuts the pipe along the reference straight line, eliminating the risk of pipe entanglement and snagging on the reference operation path. This provides a foundation for the unobstructed centering trenching, soil lifting, and trench shaping operations of the downstream trenching cutter head 311, soil throwing component 32, and guide shovel 33. The trenching and soil lifting component 31 includes two trenching cutter heads 311 symmetrically inclined relative to the center line of the cutting component 22. The trenching cutter heads 311 complete the soil cutting along the reference straight line where the cutting component 22 is located. In conjunction with the soil throwing component 32, soil is directionally discharged to both sides of the trench, and the guide shovel 33 straightens the trench outline, forming a straight, regular, and centrally positioned standard trench. The pipe roll bearing component 41, guide roller group 42, and guide pipe 43 continuously limit and correct the deviation of the pipe to be laid, guide and transport it, so that the pipe to be laid falls stably into the trench, realizing a coaxial, straight, and high-precision integrated laying operation throughout the entire process.

[0070] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A pipe laying device, characterized in that, include: Load-bearing part; The cutting section, the trenching section, and the laying section are sequentially arranged in the bearing part along the first direction; The cutting section is equipped with a holding assembly and a cutting assembly. The holding assembly includes two holding rollers symmetrically arranged on both sides of the cutting assembly. The cutting assembly is capable of cutting the pipe to be cut that is held by the two holding rollers and extends in a second direction when the two holding rollers are displaced in the first direction. The second direction is perpendicular to the first direction. The trenching section is located downstream of the cutting section and is used to create trenches in the target soil. The laying section is located downstream of the trenching section and is used to lay the pipeline to be laid in the trench.

2. The pipeline laying device according to claim 1, characterized in that, The extension direction of the holding roller forms a preset acute angle with the second direction, and the end of the holding roller near the cutting assembly is opposite to the end opposite to the cutting assembly and the groove portion.

3. The pipeline laying device according to claim 1, characterized in that, The trenching section includes a trenching and soil lifting component and a soil throwing component; The trenching and soil lifting component is rotatably connected to the bearing part. The trenching and soil lifting component can rotate relative to the bearing part to cut the target soil and push the soil upward to open the trench in the target soil. The soil-throwing assembly has an inlet and an outlet. The inlet is located on the movement path of the soil being conveyed by the trenching and soil-lifting assembly. The soil-throwing assembly can throw soil onto the target soil on both sides of the trench in the second direction along the outlet.

4. The pipeline laying device according to claim 3, characterized in that, The trenching and soil-lifting assembly includes two trenching cutter discs that are symmetrically inclined relative to the centerline of the cutting assembly. The soil-throwing components are two in number and symmetrically arranged relative to the center line, with the outlet located on the opposite side of the two soil-throwing components.

5. The pipeline laying device according to claim 4, characterized in that, The trenching cutter head includes a cutter head body and a plurality of first trenching cutters; The cutter head body is rotatably connected to the bearing part, and a plurality of first trenching cutters are detachably and spaced apart on the circumferential outer edge of the cutter head body; The first grooving cutter of one of the grooving cutter heads is bent toward the other grooving cutter head from the side opposite to the cutter head body; The first grooving cutters of the two grooving cutterheads are arranged in an alternating pattern.

6. The pipeline laying device according to claim 5, characterized in that, The trenching cutter head also includes a plurality of second trenching cutters; The second trenching cutter is detachable and spaced apart on the inner side of the cutter head body; The second trenching cutter includes a cutter arm and a cutter head. One end of the cutter arm is connected to the cutter disc body and bends inward relative to the first trenching cutter. The cutter head is connected to the other end of the cutter arm and bends toward the cutter disc body. The second grooving cutters of the two grooving cutterheads are arranged in an alternating manner.

7. The pipeline laying device according to claim 4, characterized in that, The soil-throwing assembly includes a flow guide, a flow guide plate, a flow guide trough, and soil-throwing components; The guide plate is parallel to and spaced on the outside of the trenching cutter head, the guide groove is disposed on the side of the guide plate away from the trenching cutter head, and the guide shroud is disposed above the guide groove and the trenching cutter head; The flow guide shroud, the flow guide plate, and the flow guide trough form a target cavity having the inlet and the outlet. The soil throwing component is rotatably connected to the target cavity to throw soil onto the target soil on both sides of the second direction along the outlet toward the trench.

8. The pipeline laying device according to claim 1, characterized in that, The laying section includes a tube roll bearing assembly, a guide roller assembly, and a guide tube; The pipe roll support assembly includes a U-shaped frame and a pipe roll. The U-shaped frame is disposed on the support part, and the pipe roll is rotatably connected to the U-shaped frame for outputting the pipe to be laid. The guide roller group includes adjacent guide rollers, a first guide channel is formed between adjacent guide rollers, a second guide channel is formed inside the guide pipe, and the pipeline to be laid is output to the trench in sequence through the first guide channel and the second guide channel; The guide tube is arc-shaped to form an arc-shaped second guide channel, with the protruding side of the arc-shaped guide tube facing the bottom of the trench.

9. The pipeline laying device according to claim 8, characterized in that, The laying section also includes a pipe-laying wheel located downstream of the guide pipe, which is able to squeeze the bottom and walls of the trench and hold the pipe to be laid out by the guide pipe at the bottom of the trench.

10. The pipeline laying device according to claim 3, characterized in that, The trenching section also includes a guide shovel, which is located on the side of the trenching and soil lifting assembly away from the cutting section; The guide shovel is arc-shaped, and the protruding side of the arc-shaped guide shovel is away from the trenching and soil lifting assembly.

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