Ditching-free concealed conduit laying machine and method for land treatment

Abstract

The invention discloses a ditching-free underground pipe laying machine and method for land remediation, and relates to the technical field of land remediation, the ditching-free underground pipe laying machine comprises a crawler chassis capable of freely moving and a swing unit, the swing unit is installed on the crawler chassis, the ditching-free underground pipe laying machine further comprises a pipe laying unit, and the pipe laying unit comprises a V-shaped coulter; a swing plate is installed on the swing unit, a V-shaped coulter is rotatably installed on the swing plate, a pipe inlet channel is formed in one end of the V-shaped coulter, a concealed pipe body penetrates through the pipe inlet channel, and the V-shaped coulter is pulled to move underground through the crawler chassis and the swing unit. The concealed conduit body is gradually buried underground through the conduit inlet channel along with the movement of the V-shaped coulter; when the underground pipe body needs to be buried, the underground pipe body is arranged from the position where the V-shaped coulter starts to move through the pipe inlet channel in the V-shaped coulter until the underground pipe is buried and arranged, disturbance to original soil is reduced, and the installation efficiency of the underground pipe body can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of land reclamation, in particular to a machine and method for laying trench-free concealed pipes in land reclamation. Background Art

[0002] Land remediation is known to improve saline-alkali land through salt drainage technology, transforming it into productive land. This improvement primarily involves underground drainage, which drains the high-salinity content within salt pans to lower-salinity areas outside via underground pipes. These drainage systems effectively reduce the salt content within salt pans, improving their yield and quality. Using less irrigation water and natural precipitation, saline-alkali land can be rapidly desalinated within 2-5 years, preventing secondary salinization and achieving medium-to-high yields.

[0003] For example, the patent with the publication number CN220875023U and the publication date of May 3, 2024, entitled "A Concealed Pipe Laying Structure for Drainage and Salt Discharge in Saline-Alkali Land", provides a concealed pipe laying structure for drainage and salt discharge in saline-alkali land. The concealed pipe laying structure for drainage and salt discharge in saline-alkali land comprises a base, a lower clamping seat is fixedly connected to the top of the base, the inner cavity of the lower clamping seat is provided with a support column, an upper clamping seat is provided on the top of the support column, a stabilizing mechanism is provided on the outer side of the upper clamping seat, a lower clamping half-ring is fixedly connected to the top of the upper clamping seat, an upper clamping half-ring is provided on the top of the lower clamping half-ring, a fixing mechanism is provided on the outer side of the lower clamping half-ring, and the inner cavities of the lower clamping half-ring and the upper clamping half-ring are both provided with limiting mechanisms, and the stabilizing mechanism includes a connecting plate. The concealed pipe laying structure for drainage and salt discharge in saline-alkali land provided by the patent solves the problem that the current concealed pipe laying structure for drainage and salt discharge in saline-alkali land has poor structural stability, which easily affects the stability of the concealed pipe in subsequent use.

[0004] The shortcoming of the existing technology is that when installing the underground pipe salt drainage engineering technology, most of the trenching and pipe laying machines are used to dig trenches on saline-alkali land, thereby producing ditches on the ground, and then the underground pipes are installed and placed in the ditches. After the pipe laying operation in the ditch is completed, the soil filling operation is carried out. Although the underground pipes in the ditch are filled and compacted, ground subsidence and depression may still occur during the later planting, causing the land to be bumpy and uneven, which can easily lead to regional waterlogging and thus affect the land production efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a land management machine and method for laying underground pipes without trenching, so as to solve the technical problems in the related art.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a land management machine for laying trenchless concealed pipes, comprising a crawler chassis and a swing unit that can move freely, the swing unit being mounted on the crawler chassis, and further comprising: a pipe burying unit, the pipe burying unit comprising a V-shaped plow, a swing plate being mounted on the swing unit, a V-shaped plow being rotatably mounted on the swing plate, a pipe entry channel being provided at one end of the V-shaped plow, a concealed pipe body being passed through the pipe entry channel, the V-shaped plow being pulled to move underground by the crawler chassis and the swing unit, and the concealed pipe body being gradually buried underground through the pipe entry channel as the V-shaped plow moves.

[0007] As mentioned above, the crawler chassis is provided with a cab body, and square plates are symmetrically mounted on the crawler chassis.

[0008] As mentioned above, the swing unit is a parallelogram swing structure, and the swing plate can be driven to perform reciprocating swing motion by the swing unit.

[0009] As mentioned above, the angle of the V-shaped plow can be adjusted. The V-shaped plow includes a blade body, one end of the blade body is rotatably mounted with a first plate body, the other end of the blade body is rotatably mounted with a second plate body, and the first plate body and the blade body are provided with a pipe inlet channel.

[0010] As mentioned above, the swing plate is provided with an arc-shaped T-slot, and a sliding round rod is respectively installed on the top of the first plate body and the second plate body, and the two sliding round rods are both slidably installed in the arc-shaped T-slot.

[0011] As mentioned above, a baffle is provided on the V-shaped plowshare.

[0012] As mentioned above, the swing plate is installed with a positioning plate, and two arc grooves are symmetrically opened on the positioning plate. An arc plate is respectively installed on the first plate body and the second plate body, and the two arc plates are respectively slidably installed in the arc grooves symmetrical thereto.

[0013] As mentioned above, an active plate is slidably mounted on the positioning plate, two oblique grooves are symmetrically provided on the active plate, an active round rod is mounted on each of the two arc-shaped plates, and both active round rods are slidably mounted in the oblique grooves corresponding thereto.

[0014] As mentioned above, a driving member is installed on the positioning plate, a lead screw is installed on the output end of the driving member, and the lead screw thread is installed in the active plate.

[0015] A method for laying trenchless concealed pipes for land management, based on any of the concealed pipe laying machines described above, comprises the following steps:

[0016] 1. Determine the layout location: Determine the layout location of the concealed salt drainage pipe according to the actual land conditions, and choose the downwind direction or the place where the sewer joins;

[0017] 2. Measurement: Use tools such as depth sounder to measure the depth of the concealed salt pipe to ensure that the depth meets the requirements;

[0018] 3. Pipeline installation: Use concealed pipe laying machinery to install the concealed pipe within the measured laying depth to ensure that the concealed pipe is installed at the measured laying depth;

[0019] 4. Fill and compact: Use filling tools to fill the end of the concealed pipe to complete the installation of the concealed pipe.

[0020] The beneficial effect of the present invention is that: when it is necessary to bury the concealed pipe body, the swing unit drives the V-shaped plow to swing, so that the V-shaped plow is located at the edge of the saline-alkali land or inserted into the pit, so that the V-shaped plow can move in a straight line on the saline-alkali land (that is, the swing plate and the ground of the saline-alkali land move parallel to each other). Since the concealed pipe body is passed through the pipe inlet channel on the V-shaped plow, the concealed pipe body is laid out from the position where the V-shaped plow starts to move. In the process of the crawler chassis driving the swing plate and the V-shaped plow to move, the concealed pipe body is moved from the pipe inlet channel along the crawler chassis The movement trajectory of the chassis is used for burying and laying until the buried pipe is completed. The V-shaped plowshare is used to bury the concealed pipe body, so that the concealed pipe body does not need to be trenched during installation, and the concealed pipe body can be directly laid. The plowshare is made into a V-shaped plowshare with plowshares on both wings and a concealed pipe body on one side. The V-shaped plowshare integrates the functions of cutting, lifting soil and burying pipes to realize the integrated operation of concealed pipe laying. The trenching and soil backfilling steps can be omitted, the disturbance to the original soil is reduced, the probability of soil settlement is reduced, and the installation efficiency of the concealed pipe body can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of a partial three-dimensional structure of an embodiment provided by the present invention;

[0023] Figure 2 A schematic diagram of a partial three-dimensional structure of a swing plate portion of an embodiment provided by the present invention;

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of the partial cross-sectional structure at the middle position of ;

[0025] Figure 4 For the present invention Figure 2 A schematic diagram of the partial cross-sectional structure of the inlet pipe channel and the buffer channel position;

[0026] Figure 5 For the present invention Figure 1 A schematic diagram of a partial cross-sectional structure of the screw in the axial direction;

[0027] Figure 6 A schematic diagram of a partial cross-sectional structure of another embodiment provided by the present invention;

[0028] Figure 7 A schematic diagram of a partial three-dimensional structure of another embodiment provided by the present invention;

[0029] Figure 8 A schematic diagram of a partial three-dimensional structure of another embodiment provided by the present invention;

[0030] Figure 9 A schematic diagram of a partial three-dimensional structure of a swing plate portion of another embodiment provided by the present invention;

[0031] Figure 10 A schematic diagram of a partial cross-sectional structure of an active rope position according to another embodiment of the present invention;

[0032] Figure 11 For the present invention Figure 10 A schematic diagram of the partially enlarged cross-sectional structure at position M;

[0033] Figure 12 A schematic diagram of a partial cross-sectional structure of the inlet pipe channel and the buffer channel position of another embodiment provided by the present invention;

[0034] Figure 13 It is a partial cross-sectional structural diagram of the swing unit position of the present invention;

[0035] Figure 14 A schematic diagram of a partial cross-sectional structure of the axial position of a bidirectional threaded rod according to another embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1. Track chassis; 2. V-shaped plow blade; 3. Swing plate; 4. Pipe inlet; 5. Concealed pipe body; 6. Cab body; 7. Square plate; 8. First round rod; 9. First swing rod; 10. Second round rod; 11. First hydraulic cylinder; 12. Second swing rod; 13. Second hydraulic cylinder; 14. Pipe feeding disc; 15. Cutter body; 16. First plate; 17. Second plate; 18. Arc T-slot; 19. Sliding round rod; 20. Baffle; 21. Positioning plate; 22. Arc groove; 23. Arc plate; 24. Active plate; 25 , inclined groove; 26, active round rod; 27, driving part; 28, screw; 29, nozzle; 30, buffer channel; 31, L-shaped tube; 32, containing box; 33, pump body; 34, buffer groove; 35, buffer rod; 36, knife tip; 37, elastic part; 38, driven rod; 39, baffle; 40, rectangular frame; 41, driven frame; 42, power part; 43, two-way threaded rod; 44, through groove; 45, positioning shaft; 46, seesaw; 47, flexible material; 48, supporting roller; 49, active rope; 50, auxiliary frame. DETAILED DESCRIPTION

[0038] In order to make those skilled in the art better understand the technical solution of the present invention, Figure 1 To the attached Figure 14 The present invention is further described in detail.

[0039] An embodiment provided by the present invention relates to a land management and trenching-free concealed pipe laying machine, comprising a crawler chassis 1 capable of free movement and a swinging unit, wherein the swinging unit is mounted on the crawler chassis 1, and further comprising: a pipe burying unit, wherein the pipe burying unit comprises a V-shaped plow 2, a swinging plate 3 is mounted on the swinging unit, and the V-shaped plow 2 is rotatably mounted on the swinging plate 3, and a pipe entry channel 4 is provided at one end of the V-shaped plow 2, wherein a concealed pipe body 5 passes through the pipe entry channel 4, and the V-shaped plow 2 is pulled to move underground by the crawler chassis 1 and the swinging unit, and the concealed pipe body 5 is gradually buried underground through the pipe entry channel 4 as the V-shaped plow 2 moves.

[0040] Specifically, land management involves converting saline-alkali land into land suitable for production through salt drainage technology. A concealed pipe laying machine is a device used for laying and installing concealed pipes. The concealed pipe laying machine includes a freely movable crawler chassis 1 and a swing unit. The crawler chassis 1 has sufficient strength and rigidity, and has good travel and steering capabilities. The crawler tracks are in contact with the ground, while the drive wheels are not. When the motor drives the driving wheel to rotate, the driving wheel, under the action of the reducer driving torque, engages with the gear teeth on the driving wheel and the crawler chain, so that the crawler chain can drive the structure installed on the crawler chassis 1 to move. This is the principle of movement of the crawler chassis 1. The movement of the crawler chassis 1 is common knowledge in this field and will not be repeated. The crawler chassis 1 is provided with a cab body 6. The movement of the crawler chassis 1 is operated by the control console in the cab body 6. It is common knowledge in this field and will not be repeated. The swing unit is installed on the crawler chassis 1. The swing unit is a parallelogram swing structure. The swing unit can drive the swing plate 3 to perform reciprocating swinging motion, that is, the swing unit includes a first swing rod 9 and a second swing rod 12. The crawler chassis 1 is symmetrically arranged A square plate 7 is installed, and the square plate 7 is installed on the crawler chassis 1. Two first round rods 8 are symmetrically arranged on the square plate 7. Two first swing rods 9 are symmetrically installed on the two first round rods 8 in a rotationally matched manner. A total of four first swing rods 9 are rotatably installed on the two first round rods 8. A second round rod 10 is commonly installed on the two first swing rods 9 on the same first round rod 8. The first round rod 8 and the second round rod 10 are connected by a first hydraulic cylinder 11. The first round rod 8 and the second round rod 10 connected by the first hydraulic cylinder 11 are obliquely connected, that is, a parallelogram structure is formed between the two first round rods 8 and the two second round rods 10, and the connection between the first round rod 8 and the second round rod 10 connected by the first hydraulic cylinder 11 is a diagonal connection (such as Figure 9 and Figure 13 As shown), two second round rods 10 are respectively symmetrically mounted with two second swing rods 12 in a rotationally matched manner, that is, four second swing rods 12 are rotatably mounted on the two second round rods 10, and the four second swing rods 12 are all rotatably mounted on the swing plate 3, wherein the other second round rod 10 not connected to the first hydraulic cylinder 11 is connected to the swing plate 3 via a second hydraulic cylinder 13 (as shown). Figure 9 and Figure 13As shown), when the swing plate 3 needs to swing, since the first round rod 8 is installed on the square plate 7, the two first round rods 8 are symmetrically installed with two first swing rods 9 in a rotationally matched manner, so that the first round rod 8, the first swing rod 9 and the second round rod 10 are combined into a parallelogram structure. Similarly, the second round rod 10, the second swing rod 12 and the swing plate 3 are combined into a parallelogram structure, and the first hydraulic cylinder 11 and the second hydraulic cylinder 13 are respectively located at the diagonal positions of the two parallelograms, so that starting the first hydraulic cylinder 11 or the second hydraulic cylinder 13 can drive the swing plate 3 to swing. It is common knowledge in the field that the parallelogram swing structure drives the swing plate 3 to swing and will not be repeated. The element includes a V-shaped plow 2, and the V-shaped plow 2 is rotatably installed on the swing plate 3. An inlet pipe channel 4 is opened at one end of the V-shaped plow 2, and a concealed pipe body 5 is passed through the inlet pipe channel 4. The V-shaped plow 2 is pulled underground by the crawler chassis 1 and the swing unit to move. The concealed pipe body 5 is gradually buried underground through the inlet pipe channel 4 as the V-shaped plow 2 moves. A pipe delivery disc 14 is rotatably provided on the side wall of one end of the swing plate 3, and a concealed pipe roll is provided on the pipe delivery disc 14. The concealed pipe body 5 is wound on the concealed pipe roll. The concealed pipe body 5 is a pipe body installed underground. The concealed pipe body 5 improves saline-alkali land into land suitable for production through salt drainage technology. The optimal burial depth of the concealed pipe body 5 is 60-80 cm. Maintaining an appropriate depth can avoid the concealed pipe body 5 is damaged or exposed on the surface. When it is necessary to bury the concealed pipe body 5, a pit is dug on the saline-alkali land or the crawler chassis 1 drives the swing unit and the V-shaped plow 2 to move to the dam position of the saline-alkali land, and then the swing unit drives the V-shaped plow 2 to swing, so that the V-shaped plow 2 is located at the edge of the saline-alkali land or inserted into the pit, so that the V-shaped plow 2 can move linearly on the saline-alkali land (that is, the swing plate 3 and the ground of the saline-alkali land move parallel to each other). Since the side of the V-shaped plow 2 is a pointed structure, the V-shaped plow 2 can cut the saline-alkali land and reduce the resistance of the saline-alkali land to the V-shaped plow 2. Since the pipe inlet channel 4 on the V-shaped plow 2 is penetrated by the concealed pipe body 5, the concealed pipe body 5 is pulled out from the V-shaped plow 2. The layout starts from the starting position of movement. In the process of the crawler chassis 1 driving the swing plate 3 and the V-shaped plow 2 to move, the concealed pipe body 5 is buried and laid from the pipe entry channel 4 along the movement trajectory of the crawler chassis 1 until the buried pipe is completed. The V-shaped plow 2 buries the concealed pipe body 5, so that the concealed pipe body 5 does not need to be trenched during installation, and the concealed pipe body 5 can be directly laid. The plow head is made into a V-shaped plow 2 with plows on both wings and a concealed pipe body 5 on one side. The V-shaped plow 2 integrates the functions of cutting, lifting soil and burying pipes, thereby realizing an integrated operation of concealed pipe laying. The trenching and soil backfilling steps can be omitted, the disturbance to the original soil is reduced, the probability of soil settlement is reduced, and the installation efficiency of the concealed pipe body 5 can be effectively improved.

[0041] The shortcoming of the existing technology is that when installing the underground pipe salt drainage engineering technology, most of the trenching and pipe laying machines are used to dig trenches on saline-alkali land, thereby producing ditches on the ground, and then the underground pipes are installed and placed in the ditches. After the pipe laying operation in the ditch is completed, the soil filling operation is carried out. Although the underground pipes in the ditch are filled and compacted, ground subsidence and depression may still occur during the later planting, causing the land to be bumpy and uneven, which can easily lead to regional waterlogging and thus affect the land production efficiency.

[0042] The beneficial effect of this embodiment is that: when it is necessary to bury the concealed pipe body 5, the V-shaped plow 2 is driven to swing by the swing unit, so that the V-shaped plow 2 is located at the edge of the saline-alkali land or inserted into the pit, so that the V-shaped plow 2 can move linearly on the saline-alkali land (that is, the swing plate 3 and the ground of the saline-alkali land move parallel to each other). Since the concealed pipe body 5 runs through the pipe inlet channel 4 on the V-shaped plow 2, the concealed pipe body 5 is arranged from the position where the V-shaped plow 2 starts to move. In the process of the crawler chassis 1 driving the swing plate 3 and the V-shaped plow 2 to move, the concealed pipe body 5 is moved from the pipe inlet channel 4 to the V-shaped plow 2. The buried pipe is laid along the movement trajectory of the crawler chassis 1 until the buried pipe is completed. The V-shaped plowshare 2 buries the concealed pipe body 5, so that the concealed pipe body 5 does not need to be trenched during installation, and the concealed pipe body 5 can be directly laid. The plowshare is made into a V-shaped plowshare 2 with plowshares on both wings and a concealed pipe body 5 on one side. The V-shaped plowshare 2 integrates the functions of cutting, lifting soil and burying pipes to realize the integrated operation of concealed pipe laying. The trenching and soil backfilling steps can be omitted, the disturbance to the original soil is reduced, the probability of soil settlement is reduced, and the installation efficiency of the concealed pipe body 5 can be effectively improved.

[0043] In another embodiment provided by the present invention, the angle of the V-shaped plow 2 can be adjusted. The V-shaped plow 2 includes a blade 15, one end of the blade 15 is rotatably mounted with a first plate 16, and the other end of the blade 15 is rotatably mounted with a second plate 17. The first plate 16 and the blade 15 are provided with an inlet pipe channel 4; an arc-shaped T-slot 18 is provided on the swing plate 3, and a sliding round rod 19 is respectively installed at the top of the first plate 16 and the second plate 17, and the two sliding round rods 19 are both slidably installed in the arc-shaped T-slot 18; a baffle 20 is provided on the V-shaped plow 2, and the baffle 20 is installed on the blade 15; a positioning Plate 21, two arc grooves 22 are symmetrically provided on the positioning plate 21, and an arc plate 23 is respectively installed on the first plate body 16 and the second plate body 17, and the two arc plates 23 are each slidably installed in the arc groove 22 symmetrical thereto; an active plate 24 is slidably installed on the positioning plate 21, and two inclined grooves 25 are symmetrically provided on the active plate 24, and an active round rod 26 is respectively installed on the two arc plates 23, and the two active round rods 26 are both slidably installed in the inclined groove 25 corresponding thereto; a driving member 27 is installed on the positioning plate 21, and a screw 28 is installed at the output end of the driving member 27, and the screw 28 is threadedly installed in the active plate 24.

[0044] Specifically, since the angle of the V-shaped plow 2 is constant, when the V-shaped plow 2 is at the edge of the saline-alkali land or the disturbance of the V-shaped plow 2 to the original soil needs to be further reduced, the angle of the V-shaped plow 2 needs to be reduced. When there are large clods of soil in the saline-alkali land, the angle of the V-shaped plow 2 needs to be increased so that the V-shaped plow 2 can pass from the side of the clod. When the angle of the V-shaped plow 2 needs to be adjusted, the driving member 27 is started (the driving member 27 is a device with forward and reverse motion at the output end, preferably a forward and reverse motor) to drive the lead screw 28 to rotate. Since the lead screw 28 and the active plate 24 are threadedly connected, the lead screw 28 can drive the active plate 24 to slide on the positioning plate 21 when rotating. During the movement of the active plate 24, the two active round rods 26 are slidably installed in the inclined groove 25, and the inclined groove 25 moves from one end close to the lead screw 28 to one end away from the lead screw 28. The end is inclined toward one end close to the driving member 27. During the movement of the active plate 24, the active round rod 26 slides along the trajectory of the inclined groove 25, so that the two inclined grooves 25 drive the two active round rods 26 to move synchronously, and the two active round rods 26 drive the two curved plates 23 to move synchronously along the trajectory of the curved groove 22, so that the two curved plates 23 synchronously drive the first plate body 16 and the second plate body 17 to rotate. Synchronously, the first plate body 16 and the second plate body 17 drive the sliding round rod 19 to slide in the arc T-groove 18, thereby realizing the adjustment of the angle of the V-shaped plow 2. Through the reciprocating motion of the active plate 24, the inclined groove 25 on the active plate 24 drives the active round rod 26 to move, so that the active round rod 26 synchronously drives the first plate body 16 and the second plate body 17 to rotate through the curved plate 23, thereby adjusting the angle of the V-shaped plow 2, so that the angle of the V-shaped plow 2 can adapt to different saline-alkali lands.

[0045] In another embodiment provided by the present invention, a buffer unit is provided on the V-shaped plow 2, and the buffer unit includes a nozzle 29. A buffer channel 30 is provided on the second plate 17 and the cutter body 15. The buffer channel 30 is penetrated by the nozzle 29. One end of the nozzle 29 is located at the top of the concealed tube body 5. The portion of the nozzle 29 located at the cutter body 15 is an L-shaped tube body 31. A receiving box 32 is provided on the side wall of the other end of the swing plate 3. A pump body 33 is provided in the receiving box 32. The other end of the nozzle 29 is connected to the output end of the pump body 33. The cutter body 15 A buffer groove 34 is provided on the top, and a buffer rod 35 is slidably installed in the buffer groove 34. A knife tip 36 is provided at the end of the buffer rod 35. The buffer rod 35 and the inner wall of the buffer groove 34 are connected by an elastic member 37. A driven rod 38 is provided on the buffer rod 35. The driven rod 38 extends into the L-shaped tube body 31 of the nozzle 29. A baffle plate 39 is provided on the driven rod 38. The driven rod 38 is slidably and sealingly installed on the L-shaped tube body 31 of the nozzle 29. The baffle plate 39 is slidably and sealingly installed in the L-shaped tube body 31. The L-shaped tube body 31 extends out of the bottom of the baffle 20.

[0046] Specifically, in the process of the crawler chassis 1 and the swing unit pulling the V-shaped plow 2 to move in the saline-alkali land, the blade tip 36 is subjected to resistance from the inside of the saline-alkali land when moving inside the saline-alkali land. Under the action of the resistance of the saline-alkali land, the blade tip 36 pushes the buffer rod 35 to move toward one end inside the buffer groove 34. Since an elastic member 37 is provided between the buffer groove 34 and the buffer rod 35 (the elastic member 37 is a component that can be telescoped and reset, preferably a spring), in the process of the buffer rod 35 moving toward one end inside the buffer groove 34, the buffer rod 35 squeezes the elastic member 37, so that the elastic member 37 is in a compressed state. Since the resistance caused by the saline-alkali land to the blade tip 36 and the buffer rod 35 is relatively balanced, the compressed position of the elastic member 37 is relatively stable, so that the elastic member 37 provides a relatively constant elastic force for the buffer rod 35 and the blade tip 36. The blade tip 36 is subjected to the resistance of the saline-alkali land and pushes the buffer rod 35 to slide in the buffer groove 34, so that the buffer rod 35 is subjected to the elastic force of the elastic member 37 Under the action, the position in the buffer groove 34 is relatively stable. Synchronously, the buffer rod 35 drives the driven rod 38 to move in the L-shaped tube 31, and the driven rod 38 drives the baffle plate 39 to move in the L-shaped tube 31. Since the position of the buffer rod 35 in the buffer groove 34 is relatively stable, the position of the baffle plate 39 in the L-shaped tube 31 is relatively stable. It is known to those skilled in the art that the cross section of the L-shaped tube 31 can be square, and the baffle plate 39 can be slidably sealed and installed in the L-shaped tube 31. 1, the baffle plate 39 slides to the corner position of the L-shaped tube body 31 to open the L-shaped tube body 31. When the baffle plate 39 does not slide to the corner position of the L-shaped tube body 31, the baffle plate 39 performs a sliding sealing process on the L-shaped tube body 31. Due to the presence of large hard soil blocks in the saline-alkali land (the soil hardness of the saline-alkali land is relatively high, which is mainly due to the high salt content in the soil, resulting in an increase in crystals between soil particles, forming a calcified layer, and thus making the soil hard.In severe saline-alkali land, the soil may even form large crystals of soil and salt. Such large hard soil blocks are common in saline-alkali land. When there are large soil blocks inside the saline-alkali land, the blade tip 36 passes over the hard soil blocks and breaks them up. However, the broken hard soil blocks may cause damage to the concealed pipe body 5, so the hard soil blocks need to be softened (that is, water is poured at the position of the hard soil blocks) to prevent the hard soil blocks from damaging the concealed pipe body 5. During the movement of the V-shaped plow 2 in the saline-alkali land, the resistance of the saline-alkali land to the blade tip 36 increases. Under the action of the resistance of the saline-alkali land blocks, the blade tip 36 drives the buffer rod 35 to slide further toward one end inside the buffer groove 34, so that the pressure of the buffer rod 35 on the elastic member 37 increases, causing the elastic member 37 to be further compressed. Synchronously, the buffer rod 35 drives the driven rod 38 to move in the L-shaped tube body 31, and the driven rod 38 drives the baffle plate 39 to move The nozzle 29 is connected to the pump body 33 in the storage box 32 (the pump body 33 can transport the solution in the storage box 32 to the saline-alkali land, and is preferably a water pump). The storage box 32 contains clean water (or other solutions that can soften the soil in the saline-alkali land). The pump body 33 pumps the clean water in the storage box 32 into the saline-alkali land. Water is sprayed into the saline-alkali land through the nozzle 29, so that the clean water in the holding box 32 can soften the soil blocks in the saline-alkali land, preventing the hard soil blocks from damaging the concealed pipe body 5. The hard soil blocks block the knife tip 36, so that the buffer rod 35 drives the baffle plate 39 to move to the corner position of the L-shaped tube body 31 through the driven rod 38, so that the baffle plate 39 passively opens the L-shaped tube body 31, thereby realizing the softening of the saline-alkali land soil blocks by the clean water.

[0047] In another embodiment provided by the present invention, the top ends of the first plate body 16 and the second plate body 17 are slidably installed in the arc-shaped T-slot 18 opened on the swing plate 3 through a sliding round rod 19, and a rectangular frame 40 is installed on the swing plate 3. Two driven frames 41 are symmetrically installed in the rectangular frame 40 by sliding fit. A power piece 42 is installed on the outer wall of the rectangular frame 40, and a bidirectional threaded rod 43 is installed at the output end of the power piece 42. The two threaded portions of the bidirectional threaded rod 43 are respectively threadedly connected to the two driven frames 41, that is, each of the two driven frames 41 is threadedly connected to a threaded portion of a bidirectional threaded rod 43, and an auxiliary frame 50 is rotatably installed in each of the two driven frames 41, and the top side of the first plate body 16 is mounted on one of the auxiliary frames in a sliding fit manner. In the auxiliary frame 50, the top side of the second plate body 17 is installed in another auxiliary frame 50 in a sliding fit manner, and a through groove 44 is respectively provided on the first plate body 16 and the second plate body 17, and a rocker 46 is respectively installed in the two through grooves 44 through a positioning shaft 45 in a rotational fit manner, and the positioning shafts 45 in the two through grooves 44 are located at one end close to the blade body 15, and the tops of the two rockers 46 are positioned and installed in the through grooves 44 by flexible materials 47, and a supporting roller 48 is rotatably installed on each side of the rectangular frame 40, and an active rope 49 is connected to the side away from each other of the two driven frames 41, and the other ends of the two active ropes 49 are respectively connected to the top side of the corresponding rocker 46, and the two active ropes 49 are respectively overlapped on the corresponding supporting rollers 48.

[0048] Specifically, when it is necessary to adjust the angle between the first plate 16 and the second plate 17, the power piece 42 is started (the power piece 42 is a device with an output end capable of forward and reverse motion, preferably a forward and reverse motor) to drive the bidirectional threaded rod 43 to rotate. Since the two threaded parts of the bidirectional threaded rod 43 are respectively threadedly connected to the two corresponding driven frames 41, the bidirectional threaded rod 43 can drive the two driven frames 41 to move synchronously in the rectangular frame 40, that is, the bidirectional threaded rod 43 can drive the two driven frames 41 to move away from each other at one end in the rectangular frame 40 (or the two driven frames 41 move toward each other at one end), and the two driven frames 41 drive the first plate 16 and the second plate 17 to move synchronously through the auxiliary frame 50, which can adjust the angle between the first plate 16 and the second plate 17. The angle between the first plate 16 and the second plate 17 is adjusted, and the first plate 16 and the second plate 17 drive the sliding round rod 19 to slide in the arc T-slot 18 synchronously. Since the tops of the two rockers 46 are positioned and installed in the through slot 44 by the flexible material 47, it is known to those skilled in the art that in order to ensure the stable positioning of the rocker 46 in the through slot 44, raised rubber blocks can be provided at the top and bottom of the rocker 46, and raised rubber blocks can also be provided at the top and bottom of the through slot 44. The raised rubber blocks on the rocker 46 and the through slot 44 are arranged in a concave-convex manner to squeeze each other (that is, the raised rubber block on the rocker 46 is located between the two raised rubber blocks on the through slot 44), so that the raised rubber blocks can be arranged in a staggered manner to realize the rocker 4 6 is positioned and installed in the through slot 44. Synchronously, the two driven frames 41 drive the active rope 49 to move. Since the two active ropes 49 are respectively connected to the corresponding supporting rollers 48, the active rope 49 will not drive the rocker 46 to rotate. Only when the angle between the first plate 16 and the second plate 17 decreases, the two driven frames 41 drive the active rope 49 to move, so that the active rope 49 is in a taut state between the driven frame 41 and the rocker 46. As the two driven frames 41 continue to move toward one end of each other, the two driven frames 41 continue to pull the active rope 49, so that the active rope 49 can pull the rocker 46 to rotate around the positioning shaft 45. Moreover, since the position of the positioning shaft 45 on the rocker 46 is close to the blade body 15, the active rope 49 can rotate. At one end, the seesaw 46 can move and squeeze the hard soil blocks between the first plate body 16 and the second plate body 17, so that the hard soil blocks between the first plate body 16 and the second plate body 17 can be squeezed and crushed by the two seesaws 46, which can reduce the probability of the hard soil blocks causing damage to the concealed pipe body 5. People in this field can know that in order to improve the squeezing and crushing efficiency of the two seesaws 46 on the hard soil blocks, multiple pointed tips can be evenly arranged on the part of the two seesaws 46 located between the positioning shaft 45 and the cutter body 15. When the two seesaws 46 simultaneously crush the hard soil blocks, the pointed tips on the two seesaws 46 can comprehensively crush the hard soil blocks, further reducing the probability of the hard soil blocks causing damage to the concealed pipe body 5.

[0049] Another embodiment of the present invention further provides a method for laying trenchless concealed pipes for land management, which is based on any of the concealed pipe laying machines described above, and the concealed pipe laying method includes the following steps:

[0050] 1. Determine the layout location: Determine the layout location of the concealed salt drainage pipe according to the actual land conditions, and choose the downwind direction or the place where the sewer joins;

[0051] 2. Measurement: Use tools such as depth sounder to measure the depth of the concealed salt pipe to ensure that the depth meets the requirements;

[0052] 3. Pipeline installation: Use concealed pipe laying machinery to install the concealed pipe within the measured laying depth to ensure that the concealed pipe is installed at the measured laying depth;

[0053] 4. Fill and compact: Use filling tools to fill the end of the concealed pipe to complete the installation of the concealed pipe.

[0054] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A land management machine for laying trenchless underground pipes, comprising a crawler chassis capable of free movement and a swing unit, wherein the swing unit is mounted on the crawler chassis, and is characterized in that: Also includes: The pipe burying unit includes a V-shaped plowshare, a swinging plate is installed on the swinging unit, and the V-shaped plowshare is rotatably installed on the swinging plate. A pipe entry channel is opened at one end of the V-shaped plowshare, and a concealed pipe body passes through the pipe entry channel. The V-shaped plowshare is pulled to move underground by the crawler chassis and the swinging unit, and the concealed pipe body is gradually buried underground through the pipe entry channel as the V-shaped plowshare moves.

2. A land management trenchless pipe laying machine according to claim 1, characterized in that: The crawler chassis is provided with a cab body, and square plates are symmetrically installed on the crawler chassis.

3. The land management trenchless pipe laying machine according to claim 1 is characterized in that: The swing unit is a parallelogram swing structure, and the swing plate can be driven to perform reciprocating swing motion by the swing unit.

4. The land management trenchless pipe laying machine according to claim 1 is characterized in that: The angle of the V-shaped coulter is adjustable. The V-shaped coulter includes a cutter body. A first plate is rotatably mounted on one end of the cutter body, and a second plate is rotatably mounted on the other end of the cutter body. Pipe inlet channels are provided on the first plate body and the cutter body.

5. The land management trenchless pipe laying machine according to claim 4 is characterized in that: The swing plate is provided with an arc-shaped T-slot, and a sliding round rod is respectively installed on the top of the first plate body and the second plate body, and the two sliding round rods are both slidably installed in the arc-shaped T-slot.

6. The land management trenchless pipe laying machine according to claim 1, characterized in that: A baffle is provided on the V-shaped coulter.

7. The land management trenchless pipe laying machine according to claim 5, characterized in that: The swing plate is provided with a positioning plate, and two arc grooves are symmetrically provided on the positioning plate. The first plate body and the second plate body are each provided with an arc plate, and the two arc plates are each slidably installed in an arc groove symmetrical thereto.

8. The land management trenchless concealed pipe laying machine according to claim 7, characterized in that: An active plate is slidably mounted on the positioning plate. Two oblique slots are symmetrically provided on the active plate. An active round rod is mounted on each of the two arc-shaped plates, and both active round rods are slidably mounted in the corresponding oblique slots.

9. The land management trenchless concealed pipe laying machine according to claim 8, characterized in that: A driving member is installed on the positioning plate, a lead screw is installed at the output end of the driving member, and the lead screw thread is installed in the active plate.

10. A method for laying underground pipes without trenching for land management, based on the underground pipe laying machine according to any one of claims 1 to 9, characterized in that: The concealed pipe laying method comprises the following steps:

1. Determine the layout location: Determine the layout location of the concealed salt drainage pipe according to the actual land conditions, and choose the downwind direction or the place where the sewer joins; 2. Measurement: Use tools such as depth sounder to measure the depth of the concealed salt pipe to ensure that the depth meets the requirements; 3. Pipeline installation: Use concealed pipe laying machinery to install the concealed pipe within the measured laying depth to ensure that the concealed pipe is installed at the measured laying depth; 4. Fill and compact: Use filling tools to fill the end of the concealed pipe to complete the installation of the concealed pipe.

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