Pipeline engineering non-excavation construction equipment and method thereof

Abstract

The invention relates to the field of pipeline engineering, in particular to pipeline engineering non-excavation construction equipment and a method thereof. Comprising a base which comprises a bearing area, a welding area and a conveying area; the bearing area is provided with a bearing mechanism used for bearing a to-be-welded steel pipe. The conveying area is provided with a conveying mechanism used for moving welded steel pipes into the pipeline mounting channel. The welding area is provided with a welding device used for butt welding of the steel pipes. According to the invention, multiple sections of steel pipes are automatically welded and arranged in the channel, so that the pipe arrangement cost and the time cost are saved.

Description

Technical Field

[0001] The present invention relates to the field of pipeline engineering, and in particular to a trenchless construction equipment and method for pipeline engineering. Background Art

[0002] Trenchless construction of pipeline engineering refers to a new construction technology that uses various geotechnical drilling equipment and technical means to lay, replace, and repair various underground pipelines with minimal excavation on the ground surface. This technology does not obstruct traffic, does not damage green spaces and vegetation, and does not affect the normal life and work order of shops, hospitals, schools, and residents, thus solving the adverse effects of traditional excavation construction on residents' lives, traffic, and the environment.

[0003] Trenchless construction of pipeline engineering is widely used in the construction of new pipelines and the repair of old pipelines in the fields of water supply, drainage, electricity, communication, gas, etc. Existing trenchless technologies can be classified into several types according to the construction process: guided drilling pipe laying technology, earth-penetrating shuttle spear pipe laying technology, pipe jacking machine pipe laying technology, and pipe jacking pipe laying technology.

[0004] The construction processes of the above technologies are generally very costly, and a large amount of cost will be generated when applied to the construction of beautiful villages. There is a need for a construction method and equipment that can be applied to pipelines with relatively shallow settings.

[0005] Therefore, there is an urgent need to provide an improved technical solution to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a technical effect of a trenchless construction equipment for pipeline engineering with rapid pipe laying in view of the above existing technical problems.

[0007] In view of this, the present invention provides a trenchless construction equipment for pipeline engineering, including:

[0008] A base, which includes a supporting area, a welding area, and a conveying area;

[0009] The supporting area is provided with a supporting mechanism for supporting the steel pipe to be welded;

[0010] The conveying area is provided with a conveying mechanism for moving the welded steel pipe into the pipeline installation channel;

[0011] The welding area is provided with a welding device for butt-welding the steel pipes.

[0012] Further, the supporting mechanism includes:

[0013] Supporting rods, symmetrically and oppositely arranged on the base;

[0014] A number of first rollers are provided at the positions where the supporting rods contact the steel pipe.

[0015] Further, a plurality of first chutes are provided on the base;

[0016] A plurality of first sliders are provided on the supporting rod and are slidably arranged in the first chutes;

[0017] A shock-absorbing elastic member is arranged between the first slider and the base.

[0018] Further, it further includes:

[0019] A height adjustment mechanism, including:

[0020] A synchronous adjustment rod is rotatably arranged on the base, and adjustment gears corresponding to the supporting rod are provided on the synchronous adjustment rod;

[0021] An adjustment rack is arranged on the supporting rod and is engaged with the adjustment gear;

[0022] A height adjustment rod is provided with an internal ratchet wheel at one end. The internal ratchet wheel is sleeved on the synchronous adjustment rod, and a pawl is provided on the synchronous adjustment rod;

[0023] When the supporting rod needs to rise, the internal ratchet wheel rotates the synchronous adjustment rod through the pawl; when the supporting rod descends, the internal ratchet wheel translates and disengages from the pawl, and the synchronous adjustment rod rotates by itself.

[0024] Further, the conveying mechanism includes:

[0025] A driving motor is arranged on one side of the base;

[0026] A conveying gear is rotatably arranged on the base and is driven by the driving motor;

[0027] A conveyor belt is cooperatively arranged on the conveying gear;

[0028] A plurality of supporting parts are provided and are fixedly connected to the conveyor belt.

[0029] Further, the welding device includes:

[0030] A welding track is fixedly connected to the base, and a circular second chute is provided on one side;

[0031] A sliding welding machine includes a welding machine main body, a sliding seat and a driving cylinder. The welding main body is slidably arranged on the sliding seat and is driven by the driving cylinder. The sliding seat includes a clamping rod and a driving pulley arranged on the clamping rod. The clamping rod is clamped in the second chute and the driving pulley is rotatably arranged in the second chute;

[0032] A motor is used to drive the driving pulley to rotate.

[0033] Further, it further includes:

[0034] A holding roller mechanism is arranged on the sliding welding machine and includes:

[0035] Two swing rods are symmetrically arranged on both sides of the sliding welding machine. One end of the swing rod is hinged to the sliding welding machine, and the other end is provided with a roller.

[0036] A tension spring has one end connected to the swing rod and the other end connected to the sliding welding machine.

[0037] Furthermore, one end of the swing rod branches into multiple end heads, and each end head is provided with a roller.

[0038] Furthermore, several circumferentially arrayed support moving wheel assemblies are provided on the inner side of the welding track. The support moving wheel assembly includes: a sliding support seat slidably arranged on the inner side of the welding track along a ray direction radiating outward from the center of the welding track, and a shock-absorbing spring is provided between the sliding support seat and the inner side wall of the welding track; moving wheels are arrayed on the sliding support seat and are rotatably connected to the sliding support seat.

[0039] A trenchless construction method for pipeline engineering, the method steps include:

[0040] S1: Reasonably divide the pipeline route and select several excavation points;

[0041] S2: Excavate foundation pits at the excavation points;

[0042] S3: Use a drill bit to dig out the pipe-laying channel between the two foundation pits;

[0043] S4: Tamp and level the inside of the foundation pit, and pour concrete on the bottom and inner wall of the foundation pit;

[0044] S5: Place the trenchless construction equipment for pipeline engineering and level the equipment;

[0045] S6: Put multiple sections of steel pipes into the trenchless construction equipment for pipeline engineering one by one, weld the multiple sections of steel pipes through the equipment and move them into the pipe-laying channel until one end of the steel pipe reaches another foundation pit.

[0046] The beneficial effects of the present invention are:

[0047] 1. The present invention realizes the automatic welding of multiple sections of steel pipes and their laying in the channel, saving the pipe-laying cost and time cost.

[0048] 2. The present invention can buffer shock through the supporting rod, reduce the impact generated when placing the steel pipe, and effectively protect the structure of the equipment. Description of the Drawings

[0049] Figure 1 It is a three-dimensional structure schematic diagram of the present invention;

[0050] Figure 2 It is a first slider installation structure schematic diagram of the present invention;

[0051] Figure 3 This is a schematic structural diagram of the sliding support base of the present invention;

[0052] Figure 4 This is a schematic structural diagram of the cooperation between the height adjustment rod and the synchronous adjustment rod of the present invention;

[0053] Figure 5 is Figure 1 a schematic structural diagram of area A in

[0054] Figure 6 This is an installation schematic diagram of the sliding seat of the present invention.

[0055] The markings in the figure are shown as:

[0056] 1. Base; 2. Wall panel; 3. Support area; 4. Welding area; 5. Conveyor area; 6. Support rod; 7. First roller; 8. First chute; 9. First slider; 10. Shock-absorbing elastic member; 11. Synchronous adjustment rod; 12. Inner ratchet; 13. Pawl; 14. Adjusting gear; 15. Adjusting rack; 16. Driving motor; 17. Conveyor gear; 18. Support part; 19. Welding track; 20. Welding machine main body; 21. Sliding seat; 22. Driving cylinder; 23. Clamping rod; 24. Swing rod; 25. Sliding support base; 26. Moving wheel. Specific embodiments

[0057] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0058] Embodiment 1:

[0059] This embodiment provides a trenchless construction device for pipeline engineering, including:

[0060] Base 1, and base 1 includes a support area 3, a welding area 4 and a conveyor area 5;

[0061] The support area 3 is provided with a support mechanism for supporting the steel pipe to be welded;

[0062] The conveyor area 5 is provided with a conveyor mechanism for moving the welded steel pipe into the pipeline installation channel;

[0063] The welding area 4 is provided with a welding device for butt-welding the steel pipes.

[0064] The base 1 has a trough-shaped structure, and wall panels 2 are provided on both sides. According to Figure 1As shown in the figure, the base 1 is successively provided with a supporting area 3, a welding area 4 and a conveying area 5 from left to right; there are also four leveling feet under the base 1. The leveling feet penetrate through the bottom plate of the base 1 and are threadedly connected to the base 1. A hexagonal part convenient for screwing is arranged at the top of the leveling feet. The whole equipment is leveled by screwing the leveling feet, so that the pipe feeding direction of the equipment is consistent with the pipeline installation channel direction. The supporting area 3 is provided with a supporting mechanism for supporting the steel pipe to be welded, which can bear the pressure brought by the steel pipe. The conveying area 5 is provided with a conveying mechanism for moving the welded steel pipe into the pipeline installation channel. When installing the first two steel pipes, the steel pipe on the support can be pushed onto the conveying mechanism, and then a steel pipe can be placed into the supporting mechanism; or two steel pipes can be directly placed on the supporting mechanism and the conveying mechanism respectively, and the weld seams are aligned between the two steel pipes at this time. The butt welds of the two steel pipes are formed by one-side welding and two-side forming by using the welding device in the welding area 4; then the welded steel pipe is moved into the pipeline installation channel by the conveying mechanism, and then the next section of steel pipe is placed into the supporting mechanism and welded with the previous section of steel pipe. This process is repeated until the steel pipe reaches the designed number of segments.

[0065] It realizes the automatic welding of multiple sections of steel pipes and the laying in the channel, saving the pipe laying cost and time cost.

[0066] Embodiment 2:

[0067] This embodiment provides a trenchless construction equipment for pipeline engineering. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0068] The supporting mechanism includes:

[0069] Supporting rods 6 are symmetrically and oppositely arranged on the base 1;

[0070] A number of first rollers 7 are arranged at the positions where the supporting rods 6 contact the steel pipe.

[0071] The supporting rod 6 is in the shape of a right trapezoid. The inclined surfaces of the supporting rod 6 are symmetrically arranged inside the wall plate 2 of the base 1. The inclined surfaces contact the steel pipe, that is, the steel pipe is placed and contacts the inclined surfaces. The inclined surfaces are tangent to the steel pipe, which can effectively protect the surface of the steel pipe. The supporting rod 6 can be fixed to the inner side of the wall plate 2 of the base 1 by fasteners such as bolts. And a number of first rollers 7 are arranged in an array on the inclined surface of the supporting rod 6. The first rollers 7 are made of rubber. Setting the first rollers 7 can help the steel pipe move more conveniently, reduce wear and protect the steel pipe. Setting the rubber material can reduce the hard contact of the steel pipe on the supporting rod 6 when placed and reduce the impact.

[0072] Embodiment 3:

[0073] This embodiment provides a trenchless construction equipment for pipeline engineering. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0074] A plurality of first sliding grooves 8 are provided on the base 1;

[0075] A plurality of first sliders 9 slidably arranged in the first sliding grooves 8 are provided on the supporting rod 6;

[0076] A shock-absorbing elastic member 10 is arranged between the first slider 9 and the base 1.

[0077] On the side walls on both sides of the base 1, first sliding grooves 8 are vertically opened. A plurality of first sliding grooves 8 are arranged in an array. A plurality of first sliders 9 corresponding to the first sliding grooves 8 are provided on the supporting rod 6. The first sliders 9 and the first sliding grooves 8 are usually in the shape of a dovetail. The first sliding grooves 8 penetrate through the end face of the base 1 upward to form installation openings, which facilitate the installation of the first sliders 9. When installing, the first sliders 9 are inserted into the first sliding grooves 8 from top to bottom. A inserting rod for fixing the shock-absorbing elastic member 10 is provided at the bottom of the first slider 9. The cross-section of the inserting rod can be cross-shaped. The shock-absorbing elastic member 10 can be a spring or other elastic structures. One end of the spring is sleeved on the inserting rod, and an inserting rod can also be arranged on the end face of the first sliding groove 8. The other end of the spring is sleeved on this inserting rod. By setting the inserting rod, the installation structure of the spring can be made more stable. Through the up-and-down sliding arrangement of the supporting rod 6 and the setting of the shock-absorbing elastic member 10, when placing the steel pipe, the shock can be buffered by the supporting rod 6, and the impact generated when placing the steel pipe can be reduced, and the structure of the equipment can be effectively protected.

[0078] Embodiment 4:

[0079] This embodiment provides a trenchless construction equipment for pipeline engineering. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0080] It further includes:

[0081] A height adjustment mechanism, including:

[0082] A synchronous adjustment rod 11, rotatably arranged on the base 1, and an adjustment gear 14 corresponding to the supporting rod 6 is provided on the synchronous adjustment rod 11;

[0083] An adjustment rack 15 is arranged on the supporting rod 6 and is engaged with the adjustment gear 14;

[0084] A height adjustment rod, with an internal ratchet 12 at one end. The internal ratchet 12 is sleeved on the synchronous adjustment rod 11, and a pawl 13 is provided on the synchronous adjustment rod 11;

[0085] When it is necessary to raise the supporting rod 6, the internal ratchet 12 makes the synchronous adjustment rod 11 rotate through the pawl 13; when the supporting rod 6 descends, the internal ratchet 12 translates and disengages from the pawl 13, and the synchronous adjustment rod 11 rotates by itself.

[0086] The height adjustment mechanism is used to adjust the height of the steel pipe to be welded, so as to facilitate the alignment of the steel pipe on the supporting rod 6 with the steel pipe on the conveying mechanism. Both ends of the synchronous adjustment rod 11 are rotatably arranged on the wall plate 2 of the base 1, and adjustment gears 14 corresponding to the supporting rod 6 are arranged on the synchronous adjustment rod 11. The adjustment gears 14 are respectively arranged on one side close to both ends of the synchronous adjustment rod 11, and on the inner side of the wall plate 2, an adjustment rack 15 is arranged on the supporting rod 6. The adjustment rack 15 can be an independent rod-shaped structure outside, or can be arranged on one side of the first slider 9. By the rotation of the adjustment gear 14 and the cooperation of the adjustment gear 14 and the adjustment rack 15, the height adjustment of the supporting rod 6 can be realized. One end of the height adjustment rod is provided with an annular structure, and an internal ratchet 12 is arranged inside the annular structure. The internal ratchet 12 is sleeved on the synchronous adjustment rod 11, and a pawl 13 is arranged on the surface of the synchronous adjustment rod 11. Several pawls 13 can be arranged circumferentially. Generally, the pawl 13 is arranged at one end of the synchronous adjustment rod 11, and this end penetrates out of the base 1. The internal ratchet 12 is sleeved on the pawl 13. For convenient installation, one side of the internal ratchet 12 can be set into an opening trumpet shape with an expanding inner diameter. For the convenient cooperation of the pawl 13 and the internal ratchet 12, a limiting part is arranged on the outer wall of the synchronous adjustment rod 11, and the limiting part abuts against one side of the internal ratchet 12. An annular flange can be set to enhance the structural stability.

[0087] Principle of use:

[0088] When the steel pipe is placed on the supporting rod 6, the internal ratchet 12 is not sleeved on the pawl 13, and the synchronous adjustment rod 11 can rotate freely. When the steel pipe touches the supporting rod 6, the supporting rod 6 moves downward under the impact force of the steel pipe. Under the action of the shock-absorbing elastic member 10, this part of the force is offset, and since the synchronous adjustment rod 11 can rotate freely, it does not affect the action of the shock-absorbing elastic member 10. When the steel pipe is stable, the internal ratchet 12 is sleeved on the pawl 13, and through the cooperation of the internal ratchet 12 and the pawl 13, the height of the steel pipe is gradually lifted to the position aligned with another steel pipe.

[0089] It should be noted that when the height adjustment rod can rotate 360 degrees, it is advisable to set the height adjustment rod into a circular shape. When the height adjustment rod can only swing, when the height adjustment rod needs to return from the end position to the initial position, it needs to swing quickly to avoid the steel pipe following and descending. A slight descent is normal. When the height adjustment is completed, the position of the height adjustment rod is fixed, and the fixing method can be set to be fixed on the base 1 by a magnetic attraction method.

[0090] Embodiment 5:

[0091] This embodiment provides a trenchless construction equipment for pipeline engineering. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0092] The conveying mechanism includes:

[0093] A driving motor 16 is arranged on one side of the base 1;

[0094] A transmission gear 17, the transmission gear 17 is rotatably disposed on the base 1 and driven by a driving motor 16;

[0095] A conveyor belt, which is arranged on a conveyor gear 17;

[0096] The supporting part 18 is provided with a plurality of supporting parts and is fixedly connected to the conveyor belt.

[0097] The transmission mechanism includes a driving motor 16, which is fixed on the outer side of the wall panel 2 of the base 1. A transmission gear 17 is rotatably set on the wall panel 2 of the base 1. Two concentric gears are directly fixedly connected with a synchronous shaft, through which the two transmission gears 17 can rotate synchronously, and the transmission gears 17 on two different synchronous shafts are coordinated and linked through a conveyor belt. The conveyor belt includes a transmission chain, and a plurality of evenly distributed supporting parts 18 are provided on the transmission chain. The maximum spacing of the supporting parts 18 must meet the requirement that there is always at least one supporting part 18 supporting the steel pipe, and the steel pipe can always be supported to move. In order to increase the structural strength, a steel belt can be laid on the transmission chain, and a supporting part 18 is provided on the steel belt. In order to enhance the supporting capacity of the steel belt, the transmission gears 17 can be arrayed in multiple groups to reduce the spacing between two adjacent transmission gears 17 and increase the strength of the conveyor belt.

[0098] Furthermore, the supporting portion 18 is provided with an inclined surface that contacts the steel pipe, or it can be a curved surface that fits the steel pipe. An anti-slip layer is provided on the surface of the supporting portion 18 that contacts the steel pipe to enhance the friction between the supporting portion 18 and the steel pipe, making it easier for the supporting portion 18 to move the steel pipe, preventing relative sliding between the steel pipe and the supporting portion 18, and increasing the transmission efficiency of the supporting portion 18.

[0099] Embodiment 6:

[0100] This embodiment provides a trenchless construction equipment for pipeline engineering, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0101] The welding device includes:

[0102] The welding track 19 is fixedly connected to the base 1 and has a second annular slide groove on one side;

[0103] The sliding welder comprises a welding machine body 20, a sliding seat 21 and a driving cylinder 22. The welding machine body is slidably arranged on the sliding seat 21 and driven by the driving cylinder 22. The sliding seat 21 comprises a clamping rod 23 and a driving pulley arranged on the clamping rod 23. The clamping rod 23 is clamped in a second slide groove and the driving pulley is rollingly arranged in the second slide groove.

[0104] A motor is used to drive the driving pulley to rotate.

[0105] The welding device includes a welding track 19. The main body of the welding track 19 is circular. A second chute is provided on one end face of the main body. The second chute is a track groove, and the cross-section of the track groove is convex, and the top of the convex shape penetrates the end face of the main body. The sliding welding machine includes a welding machine main body 20. The welding machine main body 20 is attached to the end face of the welding track 19. A number of roller structures for reducing friction can be provided on the surface of the welding machine main body 20 in contact with the welding track 19. The specific forms include but are not limited to that the guiding direction of the rollers is tangent to the sliding track. The sliding welding machine can adopt known welding machines for automatic welding, including but not limited to argon arc welding, submerged arc welding, and carbon dioxide shielded welding. Argon arc welding is an arc welding method that uses an inert gas (such as argon) to protect the weld area. Its characteristics are that the weld formation is beautiful and the quality is stable, and it is especially suitable for welding materials such as thin plates and alloy steels. In the automatic welding of steel pipes, argon arc welding is often used for backing welding because it is not easy to generate pores and has high welding strength; Submerged arc welding is a welding method that uses an electric arc to heat the workpiece to melt and connect the welding material with the workpiece. Its characteristics are good welding fusion degree and high efficiency, and it is currently the welding process with the fastest welding speed. In the automatic welding of steel pipes, submerged arc welding is mainly used for filling and surfacing welding. The flux for submerged arc welding uses magnetic flux. When welding in the overhead position, it can prevent the flux from falling; Carbon dioxide shielded welding uses carbon dioxide as the shielding gas and is suitable for welding steel pipes of various pipe diameters and wall thicknesses. Its characteristics are small welding deformation, large adaptability range, and high welding efficiency.

[0106] A sliding seat 21 is fixedly connected to the welding machine main body 20. A clamping rod 23 is provided on the sliding seat 21. The clamping rod 23 is clamped with the first chute 8. A driving pulley is provided on the clamping rod 23. The welding machine main body 20 is driven to slide on the sliding seat 21 by a driving cylinder 22. The driving pulley abuts against the bottom of the second chute and slides relatively. The motor is provided on the clamping rod 23 or can be built into the clamping rod 23. As for the wires of the motor, they can be built into the clamping rod 23. The driving pulley can also be set as a gear. An internal gear is provided in the second chute, and the gear cooperates with the internal gear to achieve a welding track with high precision and high stability.

[0107] Embodiment 7:

[0108] This embodiment provides a trenchless construction equipment for pipeline engineering. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0109] It further includes:

[0110] A hugging roller mechanism is provided on the sliding welding machine, including:

[0111] Two swing rods 24 are symmetrically arranged on both sides of the sliding welding machine. One end of the swing rod 24 is hinged to the sliding welding machine, and the other end is provided with a roller.

[0112] The tension spring has one end connected to the swing rod 24 and the other end connected to the sliding welding machine.

[0113] The holding roller mechanism includes two swing rods 24. The swing rods 24 are symmetrically arranged on both sides of the sliding welding machine. One end of the swing rod 24 is hinged to both sides of the sliding welding machine, and the other end is provided with a rollable roller. One end of the tension spring is hung at the middle position of the swing rod 24, and the other end is hung on the sliding welding machine. When the sliding welding machine moves towards the steel pipe, the roller abuts against the surface of the steel pipe, and the roller always abuts against the steel pipe by relying on the tension spring, making the movement track of the sliding welding machine more stable during welding, and reducing the vibration of the welding machine itself, resulting in higher welding quality.

[0114] Example 8:

[0115] This embodiment provides a trenchless construction equipment for pipeline engineering. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0116] One end of the swing rod 24 branches into multiple ends, and each end is provided with a roller.

[0117] The swing rod 24 can be arrayed and branched into multiple ends, and each end is provided with a roller. Multiple support points achieve stronger support stability of the swing rod 24.

[0118] Example 9:

[0119] This embodiment provides a trenchless construction equipment for pipeline engineering. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0120] Several circumferentially arrayed support and moving wheel assemblies are provided inside the welding track 19. The support and moving wheel assembly includes: a sliding support seat 25, which is slidably arranged inside the welding track 19 along the ray direction radiating from the center of the welding track 19, and a shock-absorbing spring is provided between the sliding support seat 25 and the inner side wall of the welding track 19; moving wheels 26, which are arrayed on the sliding support seat 25 and are rotatably connected to the sliding support seat 25.

[0121] On the inner side of the welding track 19, there are several support moving wheel assemblies arranged in a circumferential array, preferably 8. The support moving wheel assembly includes a sliding support seat 25. The sliding support seat 25 is slidably arranged on the inner side of the welding track 19 along the radial direction of the ray radiating from the center of the welding track 19. A shock-absorbing spring is provided between the sliding support seat 25 and the inner side wall of the welding track 19, and the shock-absorbing spring is in a compressed state. A clamping portion is provided at one end of the sliding support seat 25 on the welding track 19 to prevent the sliding support seat 25 from detaching from the welding track 19 body. The moving wheels 26 are arranged in an array on the sliding support seat 25 and are rotatably connected to the sliding support seat 25. A plurality of rolling moving wheels 26 are arranged on the sliding support seat 25. By providing the support moving wheel assembly, the moving wheels 26 abut against the surface of the steel pipe on the inner side of the welding track 19. When the steel pipe vibrates or swings significantly, it can effectively prevent the steel pipe from colliding with the welding track 19.

[0122] Embodiment 10:

[0123] This embodiment provides a trenchless construction method for pipeline engineering. The specific steps are as follows:

[0124] S1: Reasonably divide the pipeline route and select several excavation points;

[0125] S2: Excavate foundation pits at the excavation points;

[0126] S3: Use a drill to dig out the pipe-laying channel between the two foundation pits;

[0127] S4: Tamp and level the inside of the foundation pit, and pour concrete on the bottom and inner wall of the foundation pit;

[0128] S5: Place the trenchless construction equipment for pipeline engineering and level the equipment;

[0129] S6: Put multiple sections of steel pipes into the trenchless construction equipment for pipeline engineering one by one, and weld and move the multiple sections of steel pipes into the pipe-laying channel through the equipment until one end of the steel pipe reaches another foundation pit.

[0130] Working process:

[0131] The design drawing of the pipeline is reasonably divided, and the excavation point is selected. The excavation point should be selected at the valve installation position or the bend position. Then, a foundation pit is dug for the excavation point, and then a hole is drilled through a drill bit (underground horizontal drilling machine) to open up the lower pipe channel between the two foundation pits. It should be noted that the underground horizontal drilling machine has the function of multi-section extension, so there is no need to worry about the problem of insufficient length. Then, the inner side wall of the foundation pit is compacted and leveled, and the bottom and inner wall of the foundation pit are reinforced and the mold is tied, and then concrete is poured. After the concrete is formed, the mold is removed, and the pipeline engineering trenchless construction equipment is placed, and the equipment is adjusted and leveled by the support feet. Then, multiple sections of steel pipes are placed one by one in the pipeline engineering trenchless construction equipment. During welding, the driving cylinder 22 drives the welding machine body 20 to approach the butt joint of the steel pipe, and then moves through the sliding seat 21 to achieve welding. The welding machine body 20 returns to its original position along the original route, and the equipment welds multiple sections of steel pipes and moves into the lower pipe channel until one end of the steel pipe reaches the other foundation pit.

[0132] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which belong to the protection scope of the present application.

Claims

1. A trenchless construction equipment for pipeline engineering, characterized in that: include: A base (1), the base (1) comprising a supporting area (3), a welding area (4) and a conveying area (5); The supporting area (3) is provided with a supporting mechanism for supporting the steel pipe to be welded; The conveying area (5) is provided with a conveying mechanism for moving the welded steel pipe into the pipeline installation channel; The welding area (4) is provided with a welding device for butt welding the steel pipes.

2. The trenchless construction equipment for pipeline engineering according to claim 1, characterized in that: Supporting organizations include: Support rods (6) are symmetrically and oppositely arranged on the base (1); A plurality of first rollers (7) are provided at the position where the supporting rod (6) contacts the steel pipe.

3. The trenchless construction equipment for pipeline engineering according to claim 2 is characterized in that: A plurality of first slide grooves (8) are provided on the base (1); The supporting rod (6) is provided with a plurality of first sliding blocks (9) which are slidably arranged in the first sliding grooves (8); A shock-absorbing elastic component (10), wherein the shock-absorbing elastic component (10) is arranged between the first sliding block (9) and the base (1).

4. The trenchless construction equipment for pipeline engineering according to claim 3 is characterized in that: Also includes: Height adjustment mechanism, including: A synchronous adjustment rod (11) is rotatably arranged on the base (1), and an adjustment gear (14) corresponding to the supporting rod (6) is arranged on the synchronous adjustment rod (11); An adjusting rack (15) is arranged on the supporting rod (6) and cooperates with the adjusting gear (14); A height adjustment rod, one end of which is provided with an inner ratchet (12), the inner ratchet (12) is sleeved on a synchronous adjustment rod (11), and a ratchet pawl (13) is provided on the synchronous adjustment rod (11); When the supporting rod (6) needs to rise, the inner ratchet (12) causes the synchronous adjustment rod (11) to rotate through the ratchet pawl (13); when the supporting rod (6) descends, the inner ratchet (12) moves in translation and disengages from the ratchet pawl (13), and the synchronous adjustment rod (11) rotates itself.

5. The trenchless construction equipment for pipeline engineering according to claim 1, characterized in that: The transmission mechanism includes: A driving motor (16) is arranged on one side of the base (1); A transmission gear (17), the transmission gear (17) is rotatably disposed on the base (1) and is driven by a driving motor (16); A conveyor belt, the conveyor belt is cooperatively arranged on a conveyor gear (17); The supporting part (18) is provided with a plurality of parts and is fixedly connected to the conveyor belt.

6. The trenchless construction equipment for pipeline engineering according to claim 1, characterized in that: The welding device includes: A welding track (19) is fixedly connected to the base (1) and has a second annular sliding groove on one side; The sliding welding machine comprises a welding machine body (20), a sliding base (1) and a driving cylinder (22); the welding machine body is slidingly arranged on the sliding base (1) and driven by the driving cylinder (22); the sliding base (1) comprises a clamping rod (23) and a driving pulley arranged on the clamping rod (23); the clamping rod (23) is clamped in a second sliding groove and the driving pulley is rollingly arranged in the second sliding groove; The electric motor is used to drive the driving pulley to rotate.

7. The trenchless construction equipment for pipeline engineering according to claim 6, characterized in that: Also includes: The holding roller mechanism is arranged on the sliding welding machine and comprises: Two swing rods (24) are symmetrically arranged on both sides of the sliding welder, one end of the swing rod (24) is hinged on the sliding welder, and the other end is provided with a roller; The tension spring has one end connected to the swing rod (24) and the other end connected to the sliding welder.

8. The trenchless construction equipment for pipeline engineering according to claim 7, characterized in that: One end of the swing rod (24) is branched into a plurality of ends, and each end is provided with a roller.

9. The trenchless construction equipment for pipeline engineering according to claim 1, characterized in that: A plurality of supporting and moving wheel assemblies in a circumferential array are arranged on the inner side of the welding track (19), and the supporting and moving wheel assemblies include: a sliding support seat (25) which is slidably arranged on the inner side of the welding track (19) along a ray direction radiating outward from the center of the welding track (19), and a shock absorbing spring is arranged between the sliding support seat (25) and the inner side wall of the welding track (19); and moving wheels (26) which are arranged in an array on the sliding support seat (25) and are rotatably connected to the sliding support seat (25).

10. A pipeline engineering trenchless construction method using the pipeline engineering trenchless construction equipment according to any one of claims 1 to 9, the method steps comprising: S1: Reasonably divide the pipeline route and select several excavation points; S2: Dig a foundation pit at the excavation point; S3: Use a drill to dig out the down pipe channel between the two foundation pits; S4: compact and level the interior of the foundation pit, and pour concrete on the bottom and inner wall of the foundation pit; S5: Place trenchless construction equipment for pipeline engineering and level the equipment; S6: Multiple sections of steel pipes are placed one by one into the trenchless construction equipment of the pipeline project, and the multiple sections of steel pipes are welded and moved into the downward pipe channel through the equipment until one end of the steel pipe reaches another foundation pit.

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