Horizontal directional drilling pipe laying construction device and construction method thereof
By combining the synchronous operation of the reamer and the compaction component, the problem of hole wall instability was solved, achieving stable compaction and wetting protection of the hole wall, improving construction efficiency and safety, and adapting to the needs of holes of different sizes.
Patent Information
- Application Number
- CN202610007665.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-06
- Publication Date
- 2026-02-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When laying pipelines, especially in sandy and gravelly soil layers, the expander can easily cause the borehole wall to become unstable, resulting in problems such as collapse, hole blockage, and rough borehole wall, which affects construction efficiency and quality.
A horizontal directional drilling pipe-laying construction device is adopted, which combines a borehole expander and a compaction component. The transmission component drives the pressure plate to perform multi-directional compaction, while water is sprayed to form a moist protective layer, reducing the shedding of soil and rock particles and ensuring the stability of the borehole wall.
It enables simultaneous operation of borehole enlargement and borehole wall compaction, reducing the risk of borehole wall collapse, improving construction efficiency and safety, adapting to boreholes of different sizes, and ensuring the stability of pipeline laying.
Smart Images
Figure CN121452402A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of drilling pipe-laying construction, in particular to a horizontal directional drilling pipe-laying construction device and a construction method thereof. BACKGROUND
[0002] Trenchless construction refers to a construction technology for laying, replacing and repairing various underground pipelines through guiding, positioning drilling and other means under the condition of extremely small surface excavation by using various rock and soil drilling equipment and technical means, which does not hinder traffic and does not damage green land and vegetation, and solves the interference of traditional excavation construction on residents' life. The construction pipeline is an important part of trenchless construction, which is usually used for transporting liquid, gas and the like.
[0003] In the prior art, when laying a pipeline, a drill rod in the device is used to complete the positioning operation of the drilling trajectory in cooperation with a guiding system to form a guide hole meeting the preliminary path requirements. After the guide hole is formed, a reamer is used to enlarge the hole diameter to adapt to the size requirements of subsequent pipeline laying. When the construction encounters sandy soil, the structure of such stratum is loose due to weak inter-particle cohesion, and the hole wall is prone to instability in the reaming operation. The vibration generated in the reciprocating movement of the reamer can further destroy the natural accumulation balance of the sandstone, which may cause local collapse or diameter reduction of the hole. Once the collapse occurs, not only will it cause hole blockage and reamer jamming, but also may cause ground subsidence. Even if the collapse is not complete, the irregular collapsed material will also make the hole wall rough and uneven, and the subsequent pipeline back dragging is prone to scratches, deformation or even rupture due to sudden increase in frictional resistance, which seriously affects the laying efficiency and engineering quality and brings obstacles to subsequent construction. SUMMARY
[0004] Therefore, the present application aims to provide a horizontal directional drilling pipe-laying construction device and a construction method thereof to solve the technical problems in the background art.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions. A horizontal directional drilling pipe-laying construction device comprises a drill rod, a reamer threadedly connected to one end of the drill rod, a mounting bracket provided at an end of the reamer away from the drill rod, a butt joint block threadedly connected to the reamer and rotatably connected to one end of the mounting bracket, and a transmission assembly provided at an end of the mounting bracket away from the reamer. The transmission assembly comprises a fixed rod fixedly connected to the center position of the mounting bracket, the top end of the fixed rod is connected to the butt joint block, and compaction assemblies are provided on both sides of the fixed rod. The compaction assemblies comprise a pressing plate for performing compaction operation on the inner wall of the hole.
[0006] Preferably, the fixed rod outer wall is sleeved with a driven gear at the upper position, one side of the driven gear is engaged with a driving gear rotationally connected with a mounting frame, a first motor is mounted on the surface of the mounting frame, and the output end of the first motor is connected with the driving gear.
[0007] Preferably, the lower surface of the driven gear is fixedly connected with a transmission disc sleeved on the outer wall of the fixed rod, the lower surface of the transmission disc is fixedly connected with a transmission block in a symmetrical manner, the outer wall of the fixed rod is sleeved with a rotating drum, the top end of the rotating drum is fixedly connected with a fixed block in a symmetrical manner, the bottom end of the fixed rod is sleeved with a movable block, and the transmission block is in contact with the fixed block during rotation.
[0008] Preferably, the side surface of the pressing plate is fixedly connected with two groups of telescopic rods in a symmetrical manner, the telescopic rods are provided with reset springs, the two groups of telescopic rods are fixedly connected with the outer wall of the rotating drum and the movable block respectively, two groups of abutting blocks are arranged between the rotating drum and the movable block, the abutting blocks are sleeved on the outer wall of the fixed rod, and the abutting blocks are designed to be narrow at the top and wide at the bottom.
[0009] Preferably, the surface of the pressing plate and between the two groups of telescopic rods is fixedly connected with a mounting block, the inner wall of the mounting block is slidably connected with a connecting block, the side surface of the connecting block is fixedly connected with a spring clamping bead, a plurality of clamping grooves matched with the spring clamping bead are formed in the inner wall of the mounting block, a through groove is formed in the side surface of the mounting block away from the clamping grooves, and the connecting block is fixed by bolts.
[0010] Preferably, the side surface of the connecting block is fixedly connected with a push rod, one end of the push rod away from the connecting block is provided with an inclined surface a, and the end of the push rod is in contact with the outer wall of the abutting block.
[0011] Preferably, the side surface of the pressing plate away from the mounting block is provided with a groove, the inner wall of the groove is provided with three groups of water storage blocks, one end of the three groups of water storage blocks penetrates a connecting rod, the top end of the connecting rod extends to the outer wall of the pressing plate, and a second motor is connected, a plurality of water spraying openings are formed in the surface of the three groups of water storage blocks, and the three groups of water storage blocks are connected with a connecting pipe connected with the fixed rod.
[0012] Preferably, the front surfaces of the three groups of water storage blocks are slidably connected with baffles, the bottom ends of the three groups of baffles are fixedly connected with U-shaped blocks, and the three groups of U-shaped blocks are fixedly connected.
[0013] A horizontal directional drilling pipe laying construction method comprises the following steps: S1, initial drilling: using a drill bit and a drill rod to preliminarily drill soil, guiding a pipe laying path, after the guiding hole drilled by the preliminary drilling is completed, disassembling the drill bit, connecting the drill rod with a reamer, connecting a transmission assembly, a compaction assembly and the reamer through an abutting block, starting the drill rod, and moving the reamer by the drill rod to realize hole expansion operation; S2, position adjustment: before reaming operation, the contact position of the push rod and the block is adjusted according to the required hole size, the position of the push rod is fixed by the bolt, so that holes of different sizes are adapted; S3, compaction operation: the rotating drum is driven to rotate by the transmission disc cooperating with the transmission block, under the action of the telescopic rod, the rotating drum drives the pressing plate to make circular motion by cooperating with the movable block, and the pressing plate is driven to realize translation reciprocating operation by cooperating with the push rod and the block, so that multi-directional covering compaction of the hole wall is realized; S4, water spraying operation: during compaction operation, the water source in the fixed rod is transported to the water storage block through the connecting pipe, sprayed out through the water spraying port, and then the second motor drives the connecting rod to rotate, drives the water storage block to swing left and right to expand the water spraying range; S5, pipeline laying: after the hole reaming is completed, the reamer and the mounting frame are disassembled, the pipeline to be laid is connected with the drill rod, then the pipeline is dragged into the hole, and the end of the pipeline is pulled out from the inner wall of the hole, so that the pipeline laying is completed.
[0014] In summary, the present application mainly has the following beneficial effects: 1, the present application reams the hole wall by using the reamer, at the same time, the compaction assembly is used to compact the hole wall synchronously, realizing synchronous operation of reaming and hole wall compaction, improving construction efficiency and safety; the transmission assembly is driven to rotate by the cooperation of the driving gear and the driven gear, the rotating drum is driven to rotate by the cooperation of the transmission block and the fixed block, the pressing plate is driven to make circular motion by the cooperation of the telescopic rod, and the pressing plate is driven to move reciprocatingly by the cooperation of the block and the push rod, realizing multi-directional compaction of the hole wall, reducing the risk of collapse to a certain extent, solving the problem of insufficient stability of the hole wall after traditional reaming, without additional process for separate reinforcement, shortening the construction period; when different size holes need to be compacted, the position of the push rod on the mounting block can be manually adjusted before the device enters the hole, so that different size holes can be adapted.
[0015] 2, the water source in the fixed rod can be transported to the water storage block through the connecting pipe, and then sprayed out through the water spraying port, so that a wet protective layer with cohesive force is formed on the hole wall, reducing the peeling of rock and soil particles, cooperating with the compaction assembly to process the hole wall, providing a stable hole foundation for subsequent pipeline back dragging; while adjusting the position of the push rod, the position of the U-shaped block can be pushed by the connecting block, and then the baffle is moved to shield the water spraying port, control the water spraying amount, avoid the hole wall from being too wet and softening, and affect the subsequent operation. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a three-dimensional schematic view of the overall structure of the present application; Figure 2This is a three-dimensional schematic diagram of the overall structure of the transmission component and the compaction component in this invention; Figure 3 This is a three-dimensional schematic diagram of the disassembled structure of the transmission component in this invention. Figure 4 This is a three-dimensional schematic diagram of the overall structure of the pressure plate in this invention; Figure 5 This is a three-dimensional schematic diagram of the disassembly structure of the pressure plate in this invention; Figure 6 This is a three-dimensional schematic diagram of the internal structure of the pressure plate in this invention; Figure 7 This is a bottom view of the push rod disassembly structure in this invention.
[0017] In the diagram: 1. Drill rod; 2. Reamer; 3. Mounting bracket; 31. Connecting block; 41. Fixing rod; 42. Driven gear; 43. Driving gear; 44. Transmission disc; 441. Transmission block; 45. Rotary drum; 451. Fixing block; 46. Abutment block; 47. Movable block; 51. Pressure plate; 511. Slot; 52. Telescopic rod; 53. Mounting block; 531. Slot; 532. Through slot; 54. Push rod; 55. Connecting block; 551. Spring ball; 56. Water storage block; 561. Spray nozzle; 57. Connecting rod; 58. Baffle; 581. U-shaped block. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0019] The embodiments of the present invention will now be described.
[0020] This invention provides a horizontal directional drilling pipe-laying construction device, such as... Figure 1 - Figure 7 As shown, it includes a drill rod 1, one end of which is threadedly connected to a reamer 2. The end of the reamer 2 away from the drill rod 1 is provided with a mounting bracket 3. One end of the mounting bracket 3 is rotatably connected to a mating block 31 that is threadedly connected to the reamer 2. The reamer 2 is connected to the mating block 31. For example, the end of the mounting bracket 3 away from the reamer 2 is provided with a transmission assembly, which includes a fixing rod 41 fixedly connected to the center position of the mounting bracket 3, and the top end of the fixing rod 41 is connected to the docking block 31. Exemplarily, the outer wall of the fixed rod 41 is sleeved with a driven gear 42 at the upper position, one side of the driven gear 42 is engaged with a driving gear 43 which is rotationally connected with the mounting frame 3, the surface of the mounting frame 3 is provided with a first motor, and the output end of the first motor is connected with the driving gear 43; the driving gear 43 is driven to rotate by the first motor, so as to synchronously drive the driven gear 42 to rotate under the action of the driving gear 43, and the first motor drives the driving gear 43 to rotate in one direction and then reversely rotate in one direction again; Exemplarily, the lower surface of the driven gear 42 is fixedly connected with a transmission disc 44 which is sleeved on the outer wall of the fixed rod 41, the transmission disc 44 is symmetrically fixedly connected with transmission blocks 441 on the lower surface, the outer wall of the fixed rod 41 is sleeved with a rotating drum 45, the top end of the rotating drum 45 is symmetrically fixedly connected with fixed blocks 451, the bottom end of the fixed rod 41 is sleeved with a movable block 47, and the transmission blocks 441 are in contact with the fixed blocks 451 in the rotating process; the transmission disc 44 is synchronously driven to rotate by the driven gear 42 in the rotating process, and the transmission disc 44 drives the rotating drum 45 to rotate by the transmission blocks 441 cooperating with the fixed blocks 451 in the rotating process; Referring to Figure 2 - Figure 7 The two sides of the fixed rod 41 are provided with compaction assemblies, and the compaction assemblies comprise a pressing plate 51 which is used for compacting the inner wall of the hole, and the soil on the inner wall of the hole can be compacted by the pressing plate 51 to prevent collapse in the hole expanding process; Exemplarily, the surface of one side of the pressing plate 51 is symmetrically fixedly connected with two groups of telescopic rods 52, the telescopic rods 52 are provided with reset springs, the telescopic rods 52 can drive the pressing plate 51 to reset by the reset springs, so that the pressing plate 51 can move in parallel and reciprocally; Exemplarily, the two groups of telescopic rods 52 are fixedly connected with the outer walls of the rotating drum 45 and the movable block 47 respectively, and the rotating drum 45 and the movable block 47 can drive the pressing plate 51 to make a circular motion around the fixed rod 41 under the cooperation of the rotating drum 45 and the movable block 47; Exemplarily, two groups of abutting blocks 46 are arranged between the rotating drum 45 and the movable block 47, and the two groups of abutting blocks 46 are sleeved on the outer wall of the fixed rod 41, the abutting blocks 46 are designed to be narrow at the top and wide at the bottom, and the abutting blocks 46 can be used for compacting holes with different sizes; Exemplarily, the surface of the pressing plate 51 and between the two groups of telescopic rods 52 is fixedly connected with a mounting block 53, the inner wall of the mounting block 53 is slidably connected with a connecting block 55, the surface of one side of the connecting block 55 is fixedly connected with a spring clamping bead 551, the inner wall of the mounting block 53 is provided with a plurality of clamping grooves 531 matched with the spring clamping bead 551, and the position of the push rod 54 can be positioned by the clamping feeling generated when the spring clamping bead 551 is clamped into the inner wall of the clamping groove 531, so as to adapt to holes with different sizes; Exemplarily, one side surface of the connecting block 55 is fixedly connected with a push rod 54, and an inclined surface a is arranged at one end of the push rod 54 away from the connecting block 55. The end of the push rod 54 is in contact with the outer wall of the abutting block 46. When the inclined surface a on the push rod 54 is in contact with the abutting block 46, the pressing plate 51 can be pushed to move in parallel under the action of the abutting block 46, so as to facilitate the compaction work on the inner wall of the hole; Exemplarily, a through slot 532 is arranged on the side surface of the mounting block 53 away from the clamping groove 531, and the connecting block 55 is fixed by bolts. After the position of the push rod 54 is adjusted, the bolts are inserted through the through slot 532 and then inserted into the inner wall of the connecting block 55, so that the position of the push rod 54 can be fixed. Exemplarily, a slot 511 is arranged on the side surface of the pressing plate 51 away from the mounting block 53, and three groups of water storage blocks 56 are arranged on the inner wall of the slot 511. A connecting rod 57 is inserted through one end of the three groups of water storage blocks 56, and the top end of the connecting rod 57 extends to the outer wall of the pressing plate 51 and is connected with a second motor. A plurality of water injection openings 561 are arranged on the surface of each group of water storage blocks 56. The three groups of water storage blocks 56 are connected with a connecting pipe in communication with the fixed rod 41. Water is transmitted to the inside of the water storage blocks 56 through the connecting pipe, so that water can be sprayed out of the water injection openings 561, the soil on the inner wall of the hole is moistened, the rock-soil particles are prevented from peeling off, and the compaction assembly is used for compaction treatment on the inner wall of the hole, facilitating subsequent pipeline laying work. Exemplarily, three groups of baffles 58 are slidably connected to the front surfaces of the three groups of water storage blocks 56, and three groups of U-shaped blocks 581 are fixedly connected to the bottom ends of the three groups of baffles 58. The three groups of U-shaped blocks 581 are fixedly connected, and the connecting block 55 is in contact with the U-shaped blocks 581 when sliding. When compaction operation is needed on holes with different hole diameters, the position of the push rod 54 can be adjusted according to the size of the hole. When the push rod 54 is adjusted, the connecting block 55 and the U-shaped block 581 can drive the baffle 58 to move, so that the water injection openings 561 can be shielded by the baffle 58 to adjust the water injection amount synchronously according to the size of the hole, preventing excessive water injection.
[0021] A horizontal directional drilling pipe laying construction method, comprising the following steps: S1, initial drilling: using a drill bit and a drill rod 1 to preliminarily drill soil and guide the pipeline laying path. After the guide hole formed by the preliminary drilling is drilled, the drill bit is disassembled, the drill rod 1 is connected with a reamer 2, the transmission assembly and the compaction assembly are connected with the reamer 2 through an abutting block 31, and the drill rod 1 is started to pull the reamer 2 to move, realizing hole enlargement operation; S2, position adjustment: before the reaming operation, the contact position of the push rod 54 and the abutting block 46 is adjusted according to the size of the hole needed, and then the position of the push rod 54 is fixed by bolts, so as to adapt to holes of different sizes; S3, compaction operation: the rotating drum 45 is driven to rotate by the transmission disc 44 cooperating with the transmission block 441, under the action of the telescopic rod 52, the rotating drum 45 cooperates with the movable block 47 to drive the pressing plate 51 to make a circular motion, and at the same time, the pressing plate 51 is driven to realize translational reciprocating operation by the push rod 54 and the abutting block 46, thereby realizing multi-directional covering type compaction of the hole wall; S4, water spraying operation: in the compaction operation, the water source in the fixed rod 41 is transported to the water storage block 56 through the connecting pipe, is sprayed out from the water spraying port 561, is rotated by the second motor to drive the connecting rod 57, swings left and right to expand the water spraying range, and the water flow penetrates to form a wet protective layer, thereby improving the anti-collapse effect; S5, pipeline laying: after the hole expansion is completed, the hole expander 2 and the mounting frame 3 are disassembled, the pipeline to be laid is connected with the drill rod 1, then the pipeline is dragged into the hole, and the end part of the pipeline is pulled out from the hole wall, and the pipeline laying is completed.
[0022] The working principle of the present application is as follows: after the guide hole drilling is completed, the transmission assembly and the compaction assembly are connected with the hole expander 2 by using the butt block 31, then the drill rod 1 is started, the hole expander 2 is moved by the drill rod 1, and the hole is expanded; When the hole expander 2 is expanding, the first motor is started, the first motor drives the driving gear 43 to rotate, the driving gear 43 drives the driven gear 42 to rotate synchronously through gear engagement transmission, and then drives the transmission disc 44 to rotate, the transmission block 441 rotates synchronously with the transmission disc 44, when the transmission block 441 contacts the fixed block 451, the transmission block 441 drives the rotating drum 45 to rotate around the axis under the limiting and supporting action of the two telescopic rods 52, and the rotating drum 45 cooperates with the movable block 47 to drive the pressing plate 51 to make a circular motion, thereby realizing multi-directional covering type compaction of the hole wall; When the two pressing plates 51 rotate circularly, the inclined surface a at the end of the push rod 54 forms sliding contact with the surface of the abutting block 46, and in the rotating process of the pressing plate 51, the push rod 54 is pushed radially to the hole wall direction under the extrusion action of the abutting block 46, and the radial compaction of the hole wall is completed, when the push rod 54 swings to the recessed area between the two abutting blocks 46 with the pressing plate 51, the pressing plate 51 is retracted under the elastic force of the reset spring in the telescopic rod 52, and through the periodic cooperation of the abutting block 46 and the push rod 54, the pressing plate 51 realizes reciprocating motion of "radial extension-retraction", thereby completing the continuous compaction of the hole wall in the process of synchronous hole expansion operation, and effectively inhibiting the risk of hole wall collapse; During the compaction operation of the inner wall of the hole, the water source in the fixed rod 41 is transmitted to the water storage block 56 through the connecting pipe, and then sprayed out through the water outlet 561, and at the same time, the second motor is started, the second motor drives the connecting rod 57 to rotate, that is, the water storage block 56 swings left and right, expands the water spraying range of the water outlet 561, and makes the water flow penetrate into the surrounding rock-soil body along the tangent direction of the hole wall, so that a wet protective layer with a certain cohesive force is formed on the surface layer of the hole wall, the instability of the hole wall caused by the dry peeling of the rock-soil particles is reduced, and the anti-collapse effect is further improved; When it is necessary to compact holes of different sizes, the position of the push rod 54 on the mounting block 53 can be manually adjusted, when the spring clamping bead 551 is clamped into the inner wall of the clamping groove 531 on the mounting block 53, the position of the push rod 54 can be preliminarily positioned, and then the position of the push rod 54 is rigidly fixed by using bolts, so that the working radius of the compaction assembly can be matched with the size of the hole, and the working adaptability of the equipment is significantly improved; When the position of the push rod 54 is adjusted, the push rod 54 synchronously drives the connecting block 55 to move, when the connecting block 55 contacts with the U-shaped block 581 during the movement, the U-shaped block 581 can be driven to move up and down by the acting force of the connecting block 55, so that the position of the baffle 58 can be adjusted, and part of the water outlets 561 can be shielded according to the diameter of the hole, so that the water spraying amount can be controlled, the hole wall is not softened due to excessive local water, and the stability of the subsequent pipeline back-drawing operation is ensured. The contents not described in detail in the description belong to the prior art known to those skilled in the art.
[0023] Although the embodiments of the present application have been shown and described, the specific embodiments are only an explanation of the present application, and are not a limitation of the application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.
Claims
1. A horizontal directional drilling pipe-laying construction apparatus, characterized by: The utility model provides a kind of drilling rod (1), the drilling rod (1) one end is threadedly connected with reamer (2), the reamer (2) is equipped with mounting bracket (3) away from the one end of drilling rod (1), the mounting bracket (3) one end is rotatably connected with the butt joint block (31) being threadedly connected with reamer (2), the mounting bracket (3) is equipped with transmission assembly away from the one end of reamer (2), the transmission assembly includes with the fixed connection of the center position of mounting bracket (3) fixed rod (41), the fixed rod (41) top and butt joint block (31) are connected, the fixed rod (41) both sides are equipped with compaction assembly, and the compaction assembly includes the pressing plate (51) that carries out compaction operation to hole inner wall.
2. A horizontal directional drilling pipe-laying construction apparatus according to claim 1, characterized in that: The fixed rod (41) outer wall is sleeved with driven gear (42) on upper position, the driven gear (42) one side is engaged with driving gear (43) rotatably connected with mounting bracket (3), the mounting bracket (3) surface is equipped with first motor, and first motor output end is connected with driving gear (43).
3. A horizontal directional drilling pipe-laying construction apparatus according to claim 2, characterized in that: The driven gear (42) lower surface is fixedly connected with transmission disc (44) sleeved on the outer wall of fixed rod (41), the transmission disc (44) lower surface is fixedly connected with transmission block (441) symmetrically, the fixed rod (41) outer wall is sleeved with rotating cylinder (45), the rotating cylinder (45) top is fixedly connected with fixed block (451) symmetrically, the fixed rod (41) bottom outer wall is sleeved with movable block (47), and the transmission block (441) is contacted with fixed block (451) in rotating process.
4. A horizontal directional drilling pipe-laying construction apparatus according to claim 3, characterized in that: The pressing plate (51) one side surface is fixedly connected with two groups of telescopic rods (52) symmetrically, the telescopic rod (52) is built-in reset spring, and two groups of telescopic rods (52) are fixedly connected with the outer wall of rotating cylinder (45) and movable block (47) respectively, two groups of abutting blocks (46) are arranged between the rotating cylinder (45) and movable block (47), and the abutting block (46) is sleeved on the outer wall of fixed rod (41), and the abutting block (46) is designed as ''narrow on top and wide on bottom ''.
5. A horizontal directional drilling pipe-laying construction apparatus according to claim 4, characterized in that: The mounting block (53) inner wall is fixedly connected with spring clamping bead (551) on the surface and between two groups of telescopic rods (52), the mounting block (53) inner wall is equipped with multiple clamping grooves (531) matched with spring clamping bead (551), and the mounting block (53) one side surface away from clamping groove (531) is equipped with through groove (532), and the connecting block (55) is fixed by bolt.
6. A horizontal directional drilling pipe-laying construction apparatus according to claim 5, characterized in that: The connecting block (55) one side surface is fixedly connected with push rod (54), the push rod (54) one end away from connecting block (55) is equipped with inclined plane a, and the push rod (54) end and abutting block (46) outer wall contact.
7. A horizontal directional drilling pipe-laying construction apparatus according to claim 6, characterized in that: The side surface of the pressing plate (51) away from the mounting block (53) is provided with a groove (511), and three groups of water storage blocks (56) are arranged on the inner wall of the groove (511), and a connecting rod (57) penetrates one end of the three groups of water storage blocks (56), the top end of the connecting rod (57) extends to the outer wall of the pressing plate (51), and a second motor is connected, and the surfaces of the three groups of water storage blocks (56) are provided with a plurality of water spraying openings (561), and the three groups of water storage blocks (56) are connected with a connecting pipe connected with the fixed rod (41).
8. A horizontal directional drilling pipe-laying construction apparatus according to claim 7, characterized in that: The front surfaces of the three groups of water storage blocks (56) are slidably connected with baffles (58), the bottom ends of the three groups of baffles (58) are fixedly connected with U-shaped blocks (581), and the three groups of U-shaped blocks (581) are fixedly connected.
9. A horizontal directional drilling pipe laying construction method, applicable to the horizontal directional drilling pipe laying construction device of claim 8, comprising the following steps: S1, initial drilling: using a drill bit and a drill rod (1) to preliminarily drill soil and guide a pipe laying path, after the guide hole drilled by the preliminary drilling is completed, the drill bit is disassembled, the drill rod (1) is connected with a reamer (2), the transmission assembly and the compaction assembly are connected with the reamer (2) through the abutting block (31), the drill rod (1) is started, the reamer (2) is moved by the drill rod (1), and hole enlargement operation is realized; S2, position adjustment: before the reaming operation, the contact position of the push rod (54) and the abutting block (46) is adjusted according to the required hole size, and then the position of the push rod (54) is fixed through bolts, so as to adapt to holes of different sizes; S3, compaction operation: the rotating drum (45) is driven to rotate through the transmission disc (44) cooperating with the transmission block (441), under the action of the telescopic rod (52), the rotating drum (45) cooperates with the movable block (47) to drive the pressing plate (51) to make circular motion, and at the same time, the pressing plate (51) is driven to realize translational reciprocating operation by the push rod (54) and the abutting block (46), so as to realize multi-directional covering compaction of hole wall; S4, water spraying operation: during the compaction operation, the water source in the fixed rod (41) is transported to the water storage block (56) through the connecting pipe, sprayed out through the water spraying opening (561), and then the connecting rod (57) is driven to rotate by the second motor, so as to drive the water storage block (56) to swing left and right to expand the water spraying range; S5, pipe laying: after the hole reaming is completed, the reamer (2) and the mounting frame (3) are disassembled, the pipe to be laid is connected with the drill rod (1), then the pipe is dragged into the hole, and finally the pipe end is pulled out from the hole wall, so as to complete the pipe laying.