A device and method for laying a bedding layer for pipeline construction

Abstract

This invention provides a bedding layer laying device and method for pipeline construction, belonging to the field of drainage pipeline construction technology. The bedding layer laying device includes a laying machine and a feeding machine. The laying machine has a discharge component and a compaction component. The laying machine is slidably mounted on the support structure via a first slide rail structure, so that the discharge component maintains a horizontal movement state during movement. Along the bedding layer laying direction, the compaction component is located behind the discharge component. The feeding machine feeds bedding layer material into the discharge component through a feeding pipe. During movement, the discharge component delivers the bedding layer material to the bottom of the trench. The compaction component compacts the bedding layer material at the bottom of the trench. The bedding layer laying device for pipeline construction provided by this invention, with the discharge component slidably mounted on the support structure via the first slide rail structure, is not affected by unevenness at the bottom of the trench during its movement, achieving rapid and uniform filling of the bedding layer and improving the bedding layer laying efficiency.

Description

Technical Field

[0001] This invention relates to the field of drainage pipeline construction technology, specifically to a subbase laying device and laying method for pipeline construction. Background Technology

[0002] During the construction of water supply and drainage pipelines, in order to enhance the foundation load and reduce the risk of pipeline damage caused by uneven foundation settlement, a sand and gravel cushion layer is laid in the trench after trench excavation and support to improve the foundation stability.

[0003] The current subbase construction process involves a series of steps: pouring the subbase material, mechanical compaction or tamping, and manual leveling. After leveling, pipe sections are then hoisted and spliced ​​one by one, resulting in low efficiency and long hours of manpower and equipment usage. Currently, to improve efficiency, a material feeding trolley is placed in the trench for subbase laying. However, during movement, the trolley is prone to unevenness due to the unevenness of the trench bottom. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the feeding trolley is prone to bumping during the movement of the prior art, resulting in uneven bedding layer, thereby providing a bedding layer laying device and laying method for pipeline construction.

[0005] To solve the above-mentioned technical problems, the present invention provides a subbase laying device for pipeline construction, comprising:

[0006] A laying machine has a discharge component and a compaction component. The laying machine is slidably mounted on the support structure of the trench via a first slide rail structure so that the discharge component maintains a horizontal movement state during movement. Along the laying direction of the subbase, the compaction component is located behind the discharge component.

[0007] The feeder feeds the padding material into the discharge assembly through the feeding pipe. The discharge assembly feeds the padding material into the bottom of the trench during its movement. The compaction assembly compacts the padding material at the bottom of the trench.

[0008] Optionally, the inner sidewalls on both sides of the support structure are provided with a first slide rail in the horizontal direction, and the discharge assembly is provided with a first slide groove that is adapted to the first slide rail.

[0009] Optionally, the discharge assembly includes:

[0010] The discharge bin has an inlet and an outlet, with the outlet facing the bottom of the trench;

[0011] A discharge device is provided at the discharge port.

[0012] Optionally, the outlet end of the feeding pipe is slidably mounted to the inlet via a second slide rail structure, the second slide rail structure being arranged along the width direction of the groove.

[0013] Optionally, the discharge bin is provided with a first driving member, the output end of the first driving member being connected to the outlet end of the feeding pipe to drive the outlet end of the feeding pipe to move along the second slide rail structure.

[0014] Optionally, a support plate is provided on the outside of the feed inlet, and a pipe passage groove is provided on the support plate. The outlet end of the feed pipe passes through the pipe passage groove and is located at the feed inlet, so that the axis of the outlet end of the feed pipe is parallel to the center line of the feed inlet.

[0015] Optionally, the lower part of the discharge bin has a constricted structure.

[0016] Optionally, the compaction component includes:

[0017] A compaction frame is mounted on the discharge assembly;

[0018] The compaction component is connected to the compaction frame and compacts the cushion material.

[0019] Optionally, the compaction frame is movably connected to the discharge assembly.

[0020] Optionally, the compaction member is a cylindrical structure, the compaction frame has a mounting cavity, the compaction member is rotatably disposed in the mounting cavity, and the axial direction of the compaction member is parallel to the width direction of the groove.

[0021] Optionally, a first leveling component is provided between the discharge component and the compaction component.

[0022] Optionally, a second leveling component is provided behind the compaction component along the laying direction of the subbase.

[0023] Optionally, the feeder is located on the ground near the jacking shaft. The feeder includes a feed box, a drive unit, and a first conveyor. The feed box has an inlet and an outlet. The outlet is connected to the discharge assembly via a feed pipe. The first conveyor is located inside the feed box. The drive unit is connected to the first conveyor. The first conveyor is used to deliver the padding material in the feed box to the outlet.

[0024] Optionally, a second conveyor is disposed in the feeding box, and the second conveyor is used to convey the padding material at the inlet to the feeding box.

[0025] Optionally, the first conveyor and the second conveyor are spiral conveyor shaft structures, and the driving member drives the first conveyor and the second conveyor to rotate simultaneously.

[0026] Optionally, the feeding pipe is a flexible hose with a spiral conveyor inside. One end of the spiral conveyor is connected to the output end of the first conveyor, and the first conveyor drives the spiral conveyor to rotate so as to convey the padding material in the feeding pipe.

[0027] Optionally, a feed tank is provided at the inlet of the feeding box.

[0028] Optionally, the feeding tube has multiple sets, and the multiple sets of feeding tubes are detachably connected.

[0029] Optionally, it also includes:

[0030] The pipe jacking mechanism includes a pipe drive component and a pipe. The pipe drive component is disposed in the jacking shaft. The pipe has multiple sections. The pipe drive component drives the multiple pipe sections to push the discharge assembly to move along the first slide rail structure.

[0031] Optionally, a mounting bracket is connected to the discharge assembly, the mounting bracket having a push plate, the compaction assembly being disposed between the push plate and the discharge assembly, the push plate being connected to the pipe located at the front end, and movement of the pipe pushing the push plate to move.

[0032] This invention provides a method for laying a bedding layer for pipeline construction, using the pipeline bedding layer laying device described in the above embodiments, and includes the following steps:

[0033] The discharge assembly and compaction assembly are hoisted into the jacking shaft using hoisting equipment. The feeder is installed on the ground and connected to the discharge assembly and the feeder through a feed pipe.

[0034] The discharge assembly is installed on the support structure via the first slide rail structure;

[0035] The cushion material is fed into the discharge assembly through the feeding pipe. As the discharge assembly moves, it feeds the cushion material into the bottom of the trench, and the compaction assembly compacts the cushion material at the bottom of the trench.

[0036] Optionally, the feeder is located on the ground near the jacking shaft, and a screw conveyor is provided in the feed pipe;

[0037] When the discharge assembly moves to the length of a single feeding tube, the discharge assembly stops working; the second feeding tube is connected to the first feeding tube to increase the length of the feeding tube.

[0038] Optionally, when the feed tube is lengthened, the spiral conveyors in adjacent feed tubes are welded together.

[0039] Optionally, the discharge assembly can be moved by a pipe jacking mechanism.

[0040] The technical solution of this invention has the following advantages:

[0041] 1. The pipeline construction bedding layer laying device provided by the present invention includes a laying machine and a feeding machine. The laying machine includes a discharge component and a compaction component. The feeding machine is connected to the discharge component through a feeding pipe to feed the bedding layer material into the discharge component. The compaction component is set behind the discharge component along the bedding layer laying direction. The discharge component feeds the bedding layer material into the bottom of the trench. The compaction component compacts the bedding layer material at the bottom of the trench, realizing the integration of discharge and compaction. The laying machine is slidably installed on the support structure of the trench through a first slide rail structure, so that the discharge component maintains a horizontal movement state during the movement and is not affected by the unevenness of the bottom of the trench. This realizes the rapid and uniform filling of the bedding layer without the need for manual compaction and leveling, thus improving the bedding layer laying efficiency.

[0042] 2. The pipeline construction bedding layer laying device provided by the present invention has a first slide rail on the inner side wall of both sides of the support structure along the horizontal direction, and a first slide groove adapted to the first slide rail on the discharge component. The support structure is relatively long, and setting the slide rail on it is simpler than opening the slide groove. The matching installation of the first slide rail and the first slide groove is quick and simple, and ensures the horizontal state of the discharge component during the movement.

[0043] 3. The pipeline construction bedding layer laying device provided by the present invention includes a material discharge component comprising a feeding hopper and a discharger. The discharger is located at the discharge port of the feeding hopper. The discharger can discharge the material in the feeding hopper at a controlled rate and continuously and evenly feed it into the bottom of the trench, thereby improving the uniformity of material feeding and further improving the subsequent compaction effect.

[0044] 4. The pipeline construction bedding layer laying device provided by the present invention has an outlet end of the feeding pipe slidably installed at the inlet via a second slide rail structure. The first driving member drives the outlet end of the feeding pipe to move along the second slide rail structure. During the feeding process, the feeding pipe can be controlled to reciprocate at a uniform speed in the width direction of the trench to ensure the uniformity of the material output in the width direction.

[0045] 5. The pipeline construction bedding layer laying device provided by the present invention has a support plate set on the outside of the inlet, and a pipe groove set on the support plate. The outlet end of the feeding pipe passes through the pipe groove and is set at the inlet, so that the axis of the outlet end of the feeding pipe is parallel to the center line of the inlet. This can ensure that the bedding layer material can enter the discharge bin vertically and smoothly, and avoid the discharge end of the feeding pipe from being folded at the inlet, which would affect the feeding state.

[0046] 6. The pipeline construction bedding layer laying device provided by the present invention includes a compaction component comprising a compaction frame and a compaction element. The compaction frame is mounted on the discharge component and moves forward together with the discharge component. The discharge component transports the bedding layer material to the bottom of the trench. Under the action of the compaction element, the bedding layer is compacted. The compacted bedding layer enhances the foundation load and improves the foundation stability, protecting the pipeline from damage.

[0047] The compaction frame and the discharge assembly are movably connected, allowing the compaction component to compact at different thicknesses depending on the amount of material falling from the front subbase.

[0048] 7. The pipeline construction bedding layer laying device provided by the present invention has a cylindrical compaction component, which is rotatably connected to the compaction frame. During the compaction process, the compaction component moves and rotates at the same time, resulting in a better compaction effect.

[0049] 8. The pipeline construction bedding layer laying device provided by the present invention includes a first leveling component between the discharge component and the compaction component. The first leveling component levels the bedding layer material falling from the discharge component, facilitating the subsequent compaction process and making the compaction more uniform. Along the bedding layer laying direction, a second leveling component is provided behind the compaction component. After the bedding layer is compacted, the second leveling component can scrape away any protruding material on the surface of the compacted bedding layer, preventing it from causing unevenness to the subsequent pipeline laying.

[0050] 9. The pipeline construction bedding layer laying device provided by the present invention has a feeding machine set on the ground near the jacking well. The feeding machine includes a feeding box, a driving component and a first conveying component. The outlet of the feeding box is connected to the discharge component through a feeding pipe. The first conveying component is used to deliver the bedding layer material in the feeding box to the outlet of the feeding box, so as to avoid the accumulation of the bedding layer material in the feeding box and cause difficulties in discharging.

[0051] The feeder is also equipped with a second conveyor. The first conveyor is used to transport the padding material at the inlet of the feeding box into the feeding box. The cooperation between the first and second conveyors ensures that the padding material entering from the inlet enters the feeding pipe smoothly and evenly, avoiding the accumulation of padding material and avoiding putting too much burden on the feeding pipe.

[0052] 10. The pipeline construction bedding layer laying device provided by the present invention has a flexible hose structure for the feeding pipe and a spiral conveying component inside the feeding pipe. The spiral conveying component rotates to smoothly and evenly feed the bedding layer material into the discharge bin. Moreover, it is not easy for material to get stuck or blocked during spiral conveying. The flexible hose structure also prevents the cross bracing of the support structure from interfering with the material during the movement of the discharge component.

[0053] 11. The pipeline construction bedding layer laying device provided by the present invention has multiple sets of feeding pipes, which are detachably connected. During the movement of the discharge component, the feeder does not need to move and can be set up near the top well. For every unit distance the discharge component moves, an additional set of feeding pipes is added, which avoids instability to the trench slope during the movement of the feeder and improves work efficiency.

[0054] 12. The pipeline construction bedding layer laying device provided by the present invention further includes a pipeline jacking mechanism. The pipeline driving component is set in the jacking well. The pipeline driving component drives multiple sections of pipeline to push the discharge component to move along the first slide rail structure. There is no need to set a separate drive for the discharge component. During the pipeline laying process through the pipeline driving component, the bedding layer laying is completed at the same time, realizing the integration of pipeline laying and bedding layer construction, and improving construction efficiency.

[0055] The discharge assembly is connected to a mounting bracket, which has a push plate. The push plate is connected to a pipe at the front end. The movement of the pipe pushes the push plate, thereby moving the discharge assembly. The push plate ensures that the discharge assembly is subjected to a relatively uniform thrust during the pushing process.

[0056] 13. The pipeline construction bedding layer laying method provided by the present invention involves hoisting the discharge component and the compaction component into the jacking shaft, connecting the discharge component and the feeder installed on the ground through the feed pipe, installing the discharge component on the support structure through the first slide rail mechanism, and feeding the bedding layer material into the discharge component through the feed pipe. During the movement of the discharge component, the bedding layer material is fed into the bottom of the trench, and the compaction component compacts the bedding layer material at the bottom of the trench. The setting of the first slide rail structure ensures that the discharge component maintains a horizontal movement state during the movement, and is not affected by the unevenness of the bottom of the trench, thereby realizing the rapid and uniform filling of the bedding layer without the need for manual compaction and leveling, and improving the efficiency of bedding layer laying.

[0057] 14. The pipeline construction bedding layer laying method provided by the present invention has a feeding machine set on the ground near the jacking well. The feeding pipe is spliced ​​to adapt to the moving discharge component, so that the feeding machine does not need to follow the movement, thus avoiding instability to the trench slope.

[0058] 15. The pipeline construction bedding layer laying method provided by the present invention uses a pipeline jacking mechanism to drive the material discharge component to move, and simultaneously completes the bedding layer laying during the pipeline laying process via the pipeline drive component, thus integrating pipeline laying and bedding layer construction and improving construction efficiency. Attached Figure Description

[0059] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0060] Figure 1 This is a schematic diagram of a specific embodiment of the pipe construction underlayment laying device provided in an embodiment of the present invention;

[0061] Figure 2 for Figure 1 A schematic diagram of the added pipeline jacking mechanism;

[0062] Figure 3 for Figure 1 Schematic diagram of the intermediate support structure;

[0063] Figure 4 for Figure 1 Schematic diagram of the structure of the discharge assembly;

[0064] Figure 5 for Figure 1 Schematic diagram of the middle unloader;

[0065] Figure 6 for Figure 1 Schematic diagram of the intermediate pressure frame;

[0066] Figure 7 for Figure 1 Schematic diagram of the structure of the medium-pressure solid component;

[0067] Figure 8 for Figure 1 A schematic diagram of the structure of the feed pipe connection.

[0068] Explanation of reference numerals in the attached figures:

[0069] 1. Support structure; 2. Discharge assembly; 3. Compaction assembly; 4. First slide rail; 5. First chute; 6. Discharge bin; 7. Inlet; 8. Outlet; 9. Feed pipe; 10. Unloader; 11. Pipe through groove; 12. Mounting frame; 13. Compaction frame; 14. Compaction component; 15. Mounting cavity; 16. First leveling component; 17. Second leveling component; 18. Top-feed well; 19. Feed box; 20. Drive component; 21. First conveyor component; 22. Inlet; 23. Outlet; 24. Second conveyor component; 25. Screw conveyor component; 26. Feed tank; 27. Pipe drive component; 28. Pipe; 29. ​​Top-push plate; 30. Support plate. Detailed Implementation

[0070] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0071] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0072] In the description of this invention, it should be noted that, unless otherwise explicitly 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0073] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0074] Subbase construction typically involves using an excavator bucket to dump subbase material as evenly as possible into the trench bottom, followed by mechanical compaction or tamping, and then manual leveling according to the design elevation. After leveling, pipe sections are then hoisted and spliced ​​one by one. This method is inefficient and consumes significant manpower and machinery over a long period. To improve efficiency, a material feeding trolley is placed in the trench for subbase laying. However, during movement, the trolley is prone to unevenness due to the unevenness of the trench bottom.

[0075] The pipeline construction bedding layer laying device provided in this embodiment lays the bedding layer in the trench during pipeline construction. Laying the sand and gravel bedding layer can improve the stability of the foundation, enhance the foundation load, and reduce the risk of pipeline damage caused by uneven foundation settlement. The bedding layer laying device provided in this embodiment does not require manual compaction and leveling, which improves work efficiency.

[0076] like Figure 1 and Figure 2The diagram illustrates a specific embodiment of the pipeline construction bedding layer laying device provided in this example. It includes a laying machine and a feeding machine. The laying machine has a discharge component 2 and a compaction component 3. The laying machine is slidably mounted on the support structure 1 of the trench via a first slide rail structure, so that the discharge component 2 maintains a horizontal movement state during movement. Along the bedding layer laying direction, the compaction component 3 is positioned behind the discharge component 2. The feeding machine feeds bedding layer material into the discharge component 2 through a feeding pipe 9. During movement, the discharge component 2 delivers the bedding layer material to the bottom of the trench. The compaction component 3 compacts the bedding layer material at the bottom of the trench, achieving integrated discharge and compaction.

[0077] The laying machine is slidably mounted on the support structure 1 via a first slide rail structure, ensuring that the discharge component 2 remains horizontal during movement and is not affected by unevenness at the bottom of the trench. This achieves rapid and uniform filling of the subbase layer without the need for manual compaction and leveling, thus improving the efficiency of subbase layer laying. Specifically, the first slide rail structure can be prefabricated on the support structure 1 or installed separately after the support structure 1 is installed, ensuring the horizontality of the first slide rail structure during installation. The laying machine can also be modularized, adapting to the subbase layer construction needs of trenches with different widths through structural assembly.

[0078] like Figure 3 and Figure 4 As shown in this embodiment, the pipeline construction bedding layer laying device has first horizontal slide rails 4 provided on the inner sidewalls of both sides of the support structure 1, and a first sliding groove 5 adapted to the first slide rails 4 provided on the discharge assembly 2. Since the support structure 1 is relatively long, providing slide rails on it is simpler than creating sliding grooves. The installation of the first slide rails 4 and the first sliding groove 5 is quick and easy, and it ensures the horizontal state of the discharge assembly 2 during movement. Alternatively, as an alternative implementation, the first slide rails 4 can be provided on the discharge assembly 2, and the first sliding groove 5 can be provided on the support structure 1.

[0079] like Figure 1 , Figure 4 and Figure 5As shown in the figure, the pipeline construction bedding layer laying device provided in this embodiment includes a discharge assembly 2 comprising a discharge bin 6 and a discharge device 10. The discharge bin 6 has an inlet 7 and a outlet 8, with the outlet 8 facing the bottom of the trench. The discharge device 10 is disposed at the outlet 8. The discharge device 10 can discharge the material in the discharge bin 6 at a controlled rate and continuously and evenly feed it into the bottom of the trench, improving the uniformity of feeding and further improving the subsequent compaction effect. The discharge device 10 is a star-shaped discharge device, which has stable performance and provides uniform and continuous discharge. The discharge device 10 can achieve forward and reverse rotation. The width of the discharge bin 6 is basically the same as the width of the trench, requiring only space to be reserved for the external drive installation of the discharge device 10. The wider discharge width also improves the uniformity of the bedding layer.

[0080] like Figure 1 and Figure 2 As shown, in this embodiment, the pipeline construction bedding layer laying device has a feeding pipe 9 whose outlet end is slidably mounted on the inlet 7 via a second slide rail structure, which is arranged along the width direction of the trench. A first driving member is provided on the discharge bin 6, and the output end of the first driving member is connected to the outlet end of the feeding pipe 9 to drive the outlet end of the feeding pipe 9 to move along the second slide rail structure. During feeding, the first driving member can control the feeding pipe 9 to reciprocate at a uniform speed in the width direction of the trench, ensuring uniformity of material discharge in the width direction. Specifically, a second chute is provided at the inlet 7, and a second slide rail or sliding buckle is provided on the outlet end of the feeding pipe 9. The second slide rail or sliding buckle is fitted into the second chute to realize relative movement between the outlet end of the feeding pipe 9 and the inlet 7. The first driving member can be a linear module or a telescopic motor. The inlet 7 has a rectangular structure, which can accommodate material feeding over a longer length, allowing the bedding layer material to enter the discharge bin 6 uniformly.

[0081] like Figure 4 As shown in the embodiment, the pipeline construction bedding layer laying device provided in this embodiment has a support plate 30 on the outside of the inlet 7, and a pipe groove 11 on the support plate 30. The outlet end of the feeding pipe 9 passes through the pipe groove 11 and is set at the inlet 7, so that the axis of the outlet end of the feeding pipe 9 is parallel to the center line of the inlet 7. This can ensure that the bedding layer material can enter the discharge bin vertically and smoothly, and avoid the discharge end of the feeding pipe 9 from being folded at the inlet 7, which would affect the feeding state.

[0082] like Figure 1 As shown in the embodiment, the pipeline construction bedding layer laying device has a tapered structure at the bottom of the discharge bin 6, which facilitates the delivery of the bedding layer material inside the discharge bin 6. The bottom part can be an inverted pyramidal structure or an inverted conical structure.

[0083] like Figure 1 , Figure 6 and Figure 7 As shown in the embodiment, the pipeline construction bedding layer laying device includes a compaction component 3 comprising a compaction frame 13 and a compaction element 14. The compaction frame 13 is mounted on the discharge component 2; the compaction element 14 is connected to the compaction frame 13 and compacts the bedding layer material. The compaction frame 13 is mounted on the discharge component 2 and moves forward with it. The discharge component 2 transports the bedding layer material to the bottom of the trench. Under the action of the compaction element 14, the bedding layer is compacted. The compacted bedding layer enhances the foundation load and improves foundation stability, protecting the pipeline from damage.

[0084] like Figure 1 As shown in the embodiment, the pipeline construction bedding layer laying device has a compaction frame 13 movably connected to the discharge assembly 2. The movable connection between the compaction frame 13 and the discharge assembly 2 allows the compaction element 14 to compact layers of varying thicknesses depending on the amount of bedding layer falling from the front. Specifically, a connecting plate is provided behind the discharge assembly 2, with a rectangular groove formed on the connecting plate. A U-shaped ring is installed in the rectangular groove, and the compaction frame 13 is connected to the U-shaped ring.

[0085] like Figure 6 and Figure 7 As shown in the embodiment, the pipeline construction bedding layer laying device includes a cylindrical compaction element 14 and a mounting cavity 15 on the compaction frame 13. The compaction element 14 is rotatably disposed within the mounting cavity 15, with its axial direction parallel to the width direction of the trench. During compaction, the compaction element 14 moves and rotates simultaneously, resulting in a better compaction effect. The compaction frame 13 is a rectangular frame structure with the mounting cavity 15 located inside. The length of the compaction frame 13 is the same as the width of the trench, allowing for the installation of longer compaction elements 14 and ensuring the compaction range. Alternatively, as an alternative embodiment, the compaction element 14 can also be of other shapes, such as a rectangular block structure. In this case, the rectangular block structure compacts the material using its own weight and does not rotate.

[0086] like Figure 1 As shown in the embodiment, the pipeline construction bedding layer laying device provides a first leveling component 16 between the discharge component 2 and the compaction component 3. The first leveling component 16 levels the bedding layer material falling from the discharge component 2, controlling the initial thickness and facilitating the subsequent compaction process, resulting in more uniform compaction. Along the bedding layer laying direction, a second leveling component 17 is provided behind the compaction component 3. The second leveling component 17 can scrape away any protruding material on the surface of the compacted bedding layer, preventing it from causing unevenness in the subsequent pipeline laying, and controlling the thickness of the compacted bedding layer to ensure flatness after compaction. The first leveling component 16 and the second leveling component 17 can be flat or curved structures.

[0087] like Figure 1 As shown in the figure, the pipeline construction bedding layer laying device provided in this embodiment has a feeding machine set on the ground near the jacking shaft 18. The feeding machine includes a feeding box 19, a driving component 20, and a first conveying component 21. The feeding box 19 is provided with an inlet 22 and an outlet 23. The outlet 23 is connected to the discharge assembly 2 through a feeding pipe 9. The first conveying component 21 is disposed inside the feeding box 19, and the driving component 20 is connected to the first conveying component 21. The first conveying component 21 is used to deliver the bedding layer material in the feeding box 19 to the outlet 23. The first conveying component 21 is used to deliver the bedding layer material in the feeding box 19 to the outlet 23 of the feeding box 19, avoiding the accumulation of bedding layer material in the feeding box 19 and causing difficulties in discharging. The feeding box 19 has a rectangular structure, the driving component 20 is a motor, the driving component 20 is disposed on the top of the feeding box 19, and the first conveying component 21 is horizontally disposed inside the feeding box 19. The driving component 20 drives the first conveying component 21 to rotate through belt drive or chain drive.

[0088] like Figure 1 As shown, the pipeline construction bedding layer laying device provided in this embodiment further includes a second conveying component 24, which is disposed in the feeding box 19. The second conveying component 24 is used to convey the bedding layer material at the inlet 22 into the feeding box 19. The cooperative use between the first conveying component 21 and the second conveying component 24 ensures that the bedding layer material entering from the inlet 22 smoothly and evenly enters the feeding pipe 9, avoiding the accumulation of bedding layer material and avoiding placing a large burden on the feeding pipe 9.

[0089] like Figure 1 As shown in the embodiment, the pipeline construction bedding layer laying device has a spiral conveyor shaft structure for the first conveyor 21 and the second conveyor 24, and the driving member 20 simultaneously drives the first conveyor 21 and the second conveyor 24 to rotate. Specifically, the first conveyor 21 and the second conveyor 24 are arranged parallel to each other. Alternatively, as an alternative implementation, the first conveyor 21 and the second conveyor 24 can also be other conveying structures, such as belt conveyors or chute conveyors. Two sets of transmissions are connected to the output shaft of the driving member 20, which are respectively connected to the first conveyor 21 and the second conveyor 24, to achieve simultaneous driving of both.

[0090] like Figure 1As shown in the embodiment, the pipeline construction bedding layer laying device includes a flexible feeding pipe 9 with a spiral conveyor 25 inside. One end of the spiral conveyor 25 is connected to the output end of the first conveyor 21. The first conveyor 21 drives the spiral conveyor 25 to rotate, thereby conveying the bedding material in the feeding pipe 9. The rotation of the spiral conveyor 25 smoothly and evenly feeds the bedding material into the discharge hopper 6, and the spiral conveying process is less prone to jamming or clogging. The flexible pipe structure also prevents interference from the cross bracing of the support structure 1 during the movement of the discharge assembly 2. The spiral conveyor 25 contacts the inner wall of the feeding pipe 9, preventing material jamming in gaps.

[0091] like Figure 1 As shown in the embodiment, the pipeline construction bedding layer laying device has a feed tank 26 at the inlet 22 of the feeding box 19. The feed tank 26 has a bottom-tightening structure. The feed tank 26 can provide a buffer for the bedding material entering the feeding box 19. The bedding material is first fed into the feed tank 26 for storage, and then evenly fed into the feeding box 19 under the action of the second conveyor 24.

[0092] like Figure 8 As shown in the embodiment, the pipeline construction bedding layer laying device has multiple sets of feeding pipes 9, which are detachably connected. During the movement of the discharge assembly 2, the feeder does not need to move; it only needs to be positioned near the jacking shaft 18. For every unit distance the discharge assembly 2 moves, an additional set of feeding pipes 9 is added, avoiding instability to the trench slope during feeder movement and improving work efficiency. Specifically, adjacent feeding pipes 9 can be quickly connected via flanges, and their internal spiral conveying components 25 are welded together.

[0093] like Figure 2 As shown, the pipeline construction bedding layer laying device provided in this embodiment also includes a pipeline jacking mechanism. The pipeline jacking mechanism includes a pipeline drive component 27 and a pipeline 28. The pipeline drive component 27 is disposed in the jacking shaft 18. The pipeline 28 has multiple sections. The pipeline drive component 27 drives the multiple sections of pipeline 28 to push the discharge component 2 to move along the first slide rail structure. There is no need to set a separate drive for the discharge component 2. During the pipeline laying process via the pipeline drive component 27, the bedding layer laying is completed simultaneously, achieving integrated pipeline laying and bedding layer construction, thus improving construction efficiency. Specifically, the pipeline drive component 27 can be a horizontally positioned jack. The pipeline drive component 27 is placed on a fixed support. The reaction wall set in the jacking shaft 18 provides reaction force. A track is laid in the jacking shaft 18 to place the pipeline 28 and provide guidance. Alternatively, as an alternative implementation, the reaction wall, fixed support, pipeline drive component 27, and track can be configured as an integrated device.

[0094] like Figure 1 As shown, the pipeline construction bedding layer laying device provided in this embodiment also includes a mounting frame 12, which is connected to the discharge component. The mounting frame 12 has a push plate 29, and the compaction component 3 is disposed between the push plate 29 and the discharge component 2. The push plate 29 is connected to the pipeline 28 located at the front end, and the movement of the pipeline 28 pushes the push plate 29 to move. The push plate 29 ensures that the discharge component 2 receives a more uniform pushing force during the pushing process. Specifically, the bottom of the push plate 29 is arc-shaped, and the arc matches the maximum cross-section of the pipeline 28. A pipe opening fixing side groove is opened on the back of the push plate 29, which improves the stability during the pushing process.

[0095] This embodiment also provides a method for laying a bedding layer for pipeline construction, using the pipeline construction bedding layer laying device described in the above embodiment, including the following steps:

[0096] The discharge assembly 2 and the compaction assembly 3 are hoisted into the jacking shaft 18 using hoisting equipment. The feeder is installed on the ground and connected to the discharge assembly 2 and the feeder through the feed pipe 9.

[0097] The discharge assembly 2 is installed on the support structure 1 via the first slide rail structure;

[0098] The cushion material is fed into the discharge assembly through the feeding pipe. During the movement of the discharge assembly 2, the cushion material is fed into the bottom of the trench, and the compaction assembly compacts the cushion material at the bottom of the trench.

[0099] The first slide rail structure ensures that the discharge component 2 remains horizontal during movement, unaffected by unevenness at the bottom of the trench. This enables rapid and uniform filling of the subbase layer without the need for manual compaction and leveling, thus improving the efficiency of subbase layer laying.

[0100] The pipeline construction bedding layer laying method provided in this embodiment involves a feeding machine set on the ground near the jacking shaft 18, and a spiral conveyor 25 installed in the feeding pipe 9. When the discharge assembly 2 moves to the length of a single section of the feeding pipe 9, the discharge assembly 2 stops working. The second feeding pipe 9 is connected to the first feeding pipe 9 to increase the length of the feeding pipe 9, and so on, to complete the bedding layer construction and pipeline laying. The feeding machine does not need to follow the movement, realizing long-distance transportation of bedding layer materials. Material replenishment is only required at a fixed position, avoiding long-term movement of large machinery near the trench slope, reducing the impact on trench stability, and improving work efficiency.

[0101] The pipeline construction bedding layer laying method provided in this embodiment involves welding the spiral conveying components 25 in adjacent feed pipes 9 together when extending the feed pipe 9. This is simple and quick. Alternatively, as an alternative implementation, the spiral conveying components 25 can also be fixed together using fasteners, such as clamps.

[0102] The pipeline construction bedding layer laying method provided in this embodiment uses a pipeline jacking mechanism to move the discharge assembly 2. During the pipeline laying process via the pipeline drive component 27, the bedding layer is laid simultaneously, integrating pipeline laying and bedding layer construction and improving construction efficiency. A track is installed at the bottom of the jacking shaft 18, which serves as a guide during the jacking of the pipeline 28. During pipeline laying, the jacking direction should preferably be against the slope. If the designed pipeline laying slope is large, a backstop device can be installed in the jacking shaft 18 to prevent the already jacked structure from sliding under gravity when a new pipeline 28 needs to be hoisted.

[0103] Specifically, the method for laying the underlayment for pipeline construction includes the following steps:

[0104] Excavate and support the trench, inspect and treat the bottom of the trench according to relevant specifications, control the bottom elevation and width of the trench, and determine the compaction thickness of the subbase.

[0105] A reaction wall is set up inside the jacking shaft 18, and a track for placing the pipe 28 is laid. The track elevation should be set to ensure that the bottom of the pipe 28 and the top surface of the compacted pad are on the same horizontal plane after the pad is placed. The pipe drive component 27 is installed on the reaction wall.

[0106] The first slide rail 4 is installed on the lower half of the inner wall of the support structure 1. The installation height of the first slide rail 4 is determined in conjunction with the size of the padding system, so that the bottom of the second leveling piece 17 is flush with the top surface of the compacted padding, or the first slide rail 4 is prefabricated on the support structure 1.

[0107] The subbase laying device is hoisted into the well, and the material discharge assembly 2 is overlapped on the support structure 1 through the cooperation of the first slide rail structure; a feeder is set up around the jacking well 18, and the feed pipe 9 is installed in the discharge bin 6.

[0108] Add cushioning material to the feeding box 19, start the drive unit 20, and the first conveyor 21 and the second conveyor 24 rotate to convey the cushioning material to the feeding pipe 9. Under the action of the screw conveyor 25 in the feeding pipe 9, the cushioning material is sent to the discharge bin 6. During this period, control the outlet end of the feeding pipe 9 to reciprocate at the inlet 7 of the discharge bin 6 to ensure the uniformity of feeding in the width direction of the trench. When the cushioning material basically fills the discharge bin 6, the pipe drive unit 27 extends and pushes the discharge assembly 2 forward through the matching top iron. At the same time, start the unloader 10 to work and spread the cushioning material evenly at the bottom of the trench. During the process, continuously replenish the cushioning material to the feeding box 19. The control of the compaction thickness of the cushioning is achieved by adjusting the pushing speed, the rotation speed of the unloader 10, and the weight of the compaction component 14.

[0109] When the jacking distance reaches the length of a single pipe section, the pipe drive component 27 is retracted, material replenishment and conveying are suspended, and the material discharge work is suspended; the feeding pipe 9 is extended and connected, and the pipe 28 is hoisted into the jacking shaft 18. The pipe drive component 27 extends and pushes the pipe 28 forward, pushing the pipe end of the pipe 28 into the pipe end fixing groove on the jacking plate 29; the material replenishment, conveying and unloading work is restarted, and the pipe drive component 27 continues to extend to carry out the bedding layer laying and pipe laying;

[0110] Each time the jacking distance reaches the length of a single pipe section, the pipe drive component 27 is retracted, material replenishment and conveying are suspended, and unloading is halted. The feed pipe 9 is then extended, and pipe 28 is lowered into the jacking shaft 18 to complete the connection between the front and rear pipes 28. Material replenishment, conveying, unloading, and jacking operations are then restarted. The above operations are repeated until the subbase construction and pipe laying within the section are completed, followed by equipment dismantling, jacking shaft construction, and trench backfilling.

[0111] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A bedding laying device for pipe laying, characterized by, The utility model relates to a kind of laying machine, including: Laying machine, with discharge assembly (2) and compaction assembly (3), the laying machine is slidably mounted on the support structure (1) of trench by first slide rail structure, so that the discharge assembly (2) keeps horizontal moving state during moving;Along bedding laying direction, the compaction assembly (3) is set to the rear of the discharge assembly (2); Feeder, the feeder is sent into bedding material into the discharge assembly (2) by feeding pipe (9), the discharge assembly (2) is sent into the bedding material in trench bottom during moving, and the compaction assembly (3) is compacted to the bedding material in trench bottom;The feeder is set on the ground near jacking well (18), and the feeder includes feeding box (19), driving part (20) and first conveying part (21), the feeding box (19) is provided with import (22) and export (23), the export (23) is connected with the discharge assembly (2) by feeding pipe (9), the first conveying part (21) is set in the feeding box (19), the driving part (20) is connected with the first conveying part (21), and the first conveying part (21) is used to send the bedding material in the feeding box (19) to the export (23);The feeding pipe (9) is hose structure, and spiral conveying part (25) is set in the feeding pipe (9), one end of the spiral conveying part (25) is connected with the output end of the first conveying part (21), and the first conveying part (21) drives the spiral conveying part (25) to rotate, to convey the bedding material in the feeding pipe (9); Pipeline jacking mechanism, including pipeline driving part (27) and pipeline (28), the pipeline driving part (27) is set in jacking well (18), the pipeline (28) has multiple sections, and the pipeline driving part (27) is pushed by driving multiple pipeline (28) to move the discharge assembly (2) along first slide rail structure.

2. The bedding layer laying device for pipe work according to claim 1, characterized by First slide rail (4) is set on the inner side wall of the two sides of the support structure (1) along horizontal direction, and the discharge assembly (2) is provided with the first sliding groove (5) matched with the first slide rail (4).

3. The bedding layer laying device for pipe work according to claim 1, characterized by The discharge assembly (2) includes: Discharge bin (6) has feed inlet (7) and discharge port (8), and the discharge port (8) faces the trench bottom; Discharger (10) is set to the discharge port (8).

4. The bedding layer laying apparatus for pipe work according to claim 3, characterized by The outlet end of the feeding pipe (9) is slidably mounted on the feed inlet (7) by second slide rail structure, and the second slide rail structure is set along the width direction of trench.

5. The bedding layer laying apparatus for pipe work according to claim 4, characterized by First driving part is set on the discharge bin (6), and the output end of the first driving part is connected with the outlet end of the feeding pipe (9), to drive the outlet end of the feeding pipe (9) to move along the second slide rail structure.

6. The bedding layer laying device for pipe work according to claim 3, characterized by Support plate (30) is set outside the feed inlet (7), pipe passing groove (11) is set on the support plate (30), and the outlet end of the feeding pipe (9) is set at the feed inlet (7) after passing through the pipe passing groove (11), so that the axis of the outlet end of the feeding pipe (9) is parallel with the center line of the feed inlet (7).

7. The bedding layer laying device for pipe work according to claim 3, characterized by The lower part of the discharge bin (6) is a closed structure.

8. The bedding layer laying apparatus for pipe work according to claim 1, characterized by The compaction assembly (3) comprises: A compaction frame (13) is arranged on the discharge assembly (2); A compaction member (14) is connected with the compaction frame (13), and the compaction member (14) compacts the cushion material.

9. The bedding layer laying apparatus for pipe work according to claim 8, characterized by The compaction frame (13) is movably connected with the discharge assembly (2).

10. The bedding layer laying apparatus for pipe work according to claim 8, wherein The compaction member (14) is in a cylindrical structure, the compaction frame (13) has a mounting cavity (15), the compaction member (14) is rotatably arranged in the mounting cavity (15), and the axis direction of the compaction member (14) is parallel to the width direction of the groove.

11. The bedding layer laying apparatus for pipe work according to claim 1, characterized by A first leveling member (16) is arranged between the discharge assembly (2) and the compaction assembly (3).

12. The bedding layer laying apparatus for pipe work according to claim 1, characterized by A second leveling member (17) is arranged at the rear of the compaction assembly (3) along the cushion laying direction.

13. The bedding layer laying apparatus for pipe work according to claim 1, characterized by Further comprising: A second conveying member (24) is arranged in the feeding box (19), and the second conveying member (24) is used for conveying the cushion material at the inlet (22) into the feeding box (19).

14. The bedding layer laying apparatus for pipe work according to claim 13, wherein The first conveying member (21) and the second conveying member (24) are in a spiral conveying shaft structure, and the driving member (20) simultaneously drives the first conveying member (21) and the second conveying member (24) to rotate.

15. The bedding layer laying apparatus for pipe work according to claim 1, characterized by An inlet (22) of the feeding box (19) is provided with a feeding tank (26).

16. The bedding layer laying apparatus for pipe installation according to Claim 1, wherein The feeding pipe (9) has multiple groups, and the multiple groups of the feeding pipe (9) are detachably connected.

17. The bedding layer laying apparatus for pipe work according to claim 1, characterized by Further comprising: A mounting frame (12) is connected with the discharge assembly, the mounting frame (12) has a pushing plate (29), the compaction assembly (3) is arranged between the pushing plate (29) and the discharge assembly (2), the pushing plate (29) is connected with the pipe (28) at the front end, and the pipe (28) moves to push the pushing plate (29) to move.

18. A method of laying a bedding for pipeline construction, characterised by, The pipe construction cushion laying device of any one of claims 1-17 comprises the following steps: The discharge assembly (2) and the compaction assembly (3) are hoisted into the jacking well (18) by hoisting equipment, the feeder is installed on the ground, and the discharge assembly (2) and the feeder are connected through the feeding pipe (9); The discharge assembly (2) is installed on the support structure (1) through the first slide rail structure; The cushion material is sent into the discharge assembly through the feeding pipe, the cushion material is sent into the bottom of the groove during the movement of the discharge assembly (2), and the compaction assembly compacts the cushion material at the bottom of the groove.

19. The method of bedding a cushion for pipe installation according to claim 18, wherein, The feeder is arranged on the ground near the jacking well (18), and the feeding pipe (9) is provided with a spiral conveying member (25); When the discharge assembly (2) moves to the length of a single feeding pipe (9), the discharge assembly (2) stops working; the second feeding pipe (9) is connected with the first feeding pipe (9), and the length of the feeding pipe (9) is increased.

20. The method of bedding a pipe for pipeline construction according to claim 19, wherein, When the length of the feeding pipe (9) is increased, the spiral conveying members (25) in adjacent feeding pipes (9) are fusion bonded.

21. The method of bedding a pipe for pipeline construction according to claim 18, wherein, The discharge assembly (2) is moved by the pipe jacking mechanism.

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